* [U-Boot] [PATCH v3 1/9] fs/fat: split out helper to init fsdata
2017-09-10 11:21 [U-Boot] [PATCH v2 00/21] efi_loader: enough UEFI for standard distro boot Rob Clark
@ 2017-09-10 11:21 ` Rob Clark
2017-09-10 11:21 ` [U-Boot] [PATCH v2 01/21] part: move efi_guid_t Rob Clark
` (29 subsequent siblings)
30 siblings, 0 replies; 46+ messages in thread
From: Rob Clark @ 2017-09-10 11:21 UTC (permalink / raw)
To: u-boot
[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain; charset="windows-1254", Size: 3827 bytes --]
Want to re-use this in fat dirent iterator in next patch.
Signed-off-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Łukasz Majewski <lukma@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
---
fs/fat/fat.c | 73 +++++++++++++++++++++++++++++++++++------------------------
include/fat.h | 1 +
2 files changed, 44 insertions(+), 30 deletions(-)
diff --git a/fs/fat/fat.c b/fs/fat/fat.c
index 465a6875ed..e1c0a15dc7 100644
--- a/fs/fat/fat.c
+++ b/fs/fat/fat.c
@@ -808,35 +808,17 @@ exit:
return ret;
}
-__u8 do_fat_read_at_block[MAX_CLUSTSIZE]
- __aligned(ARCH_DMA_MINALIGN);
-
-int do_fat_read_at(const char *filename, loff_t pos, void *buffer,
- loff_t maxsize, int dols, int dogetsize, loff_t *size)
+static int get_fs_info(fsdata *mydata)
{
- char fnamecopy[2048];
boot_sector bs;
volume_info volinfo;
- fsdata datablock;
- fsdata *mydata = &datablock;
- dir_entry *dentptr = NULL;
- __u16 prevcksum = 0xffff;
- char *subname = "";
- __u32 cursect;
- int idx, isdir = 0;
- int files = 0, dirs = 0;
- int ret = -1;
- int firsttime;
__u32 root_cluster = 0;
- __u32 read_blk;
- int rootdir_size = 0;
- int buffer_blk_cnt;
- int do_read;
- __u8 *dir_ptr;
+ int ret;
- if (read_bootsectandvi(&bs, &volinfo, &mydata->fatsize)) {
+ ret = read_bootsectandvi(&bs, &volinfo, &mydata->fatsize);
+ if (ret) {
debug("Error: reading boot sector\n");
- return -1;
+ return ret;
}
if (mydata->fatsize == 32) {
@@ -848,8 +830,7 @@ int do_fat_read_at(const char *filename, loff_t pos, void *buffer,
mydata->fat_sect = bs.reserved;
- cursect = mydata->rootdir_sect
- = mydata->fat_sect + mydata->fatlength * bs.fats;
+ mydata->rootdir_sect = mydata->fat_sect + mydata->fatlength * bs.fats;
mydata->sect_size = (bs.sector_size[1] << 8) + bs.sector_size[0];
mydata->clust_size = bs.cluster_size;
@@ -863,12 +844,12 @@ int do_fat_read_at(const char *filename, loff_t pos, void *buffer,
mydata->data_begin = mydata->rootdir_sect -
(mydata->clust_size * 2);
} else {
- rootdir_size = ((bs.dir_entries[1] * (int)256 +
- bs.dir_entries[0]) *
- sizeof(dir_entry)) /
- mydata->sect_size;
+ mydata->rootdir_size = ((bs.dir_entries[1] * (int)256 +
+ bs.dir_entries[0]) *
+ sizeof(dir_entry)) /
+ mydata->sect_size;
mydata->data_begin = mydata->rootdir_sect +
- rootdir_size -
+ mydata->rootdir_size -
(mydata->clust_size * 2);
}
@@ -893,6 +874,38 @@ int do_fat_read_at(const char *filename, loff_t pos, void *buffer,
debug("Sector size: %d, cluster size: %d\n", mydata->sect_size,
mydata->clust_size);
+ return 0;
+}
+
+__u8 do_fat_read_at_block[MAX_CLUSTSIZE]
+ __aligned(ARCH_DMA_MINALIGN);
+
+int do_fat_read_at(const char *filename, loff_t pos, void *buffer,
+ loff_t maxsize, int dols, int dogetsize, loff_t *size)
+{
+ char fnamecopy[2048];
+ fsdata datablock;
+ fsdata *mydata = &datablock;
+ dir_entry *dentptr = NULL;
+ __u16 prevcksum = 0xffff;
+ char *subname = "";
+ __u32 cursect;
+ int idx, isdir = 0;
+ int files = 0, dirs = 0;
+ int ret = -1;
+ int firsttime;
+ __u32 root_cluster = 0;
+ __u32 read_blk;
+ int rootdir_size = 0;
+ int buffer_blk_cnt;
+ int do_read;
+ __u8 *dir_ptr;
+
+ if (get_fs_info(mydata))
+ return -1;
+
+ cursect = mydata->rootdir_sect;
+
/* "cwd" is always the root... */
while (ISDIRDELIM(*filename))
filename++;
diff --git a/include/fat.h b/include/fat.h
index 71879f01ca..b671ee8f81 100644
--- a/include/fat.h
+++ b/include/fat.h
@@ -174,6 +174,7 @@ typedef struct {
__u16 clust_size; /* Size of clusters in sectors */
int data_begin; /* The sector of the first cluster, can be negative */
int fatbufnum; /* Used by get_fatent, init to -1 */
+ int rootdir_size; /* Size of root dir for non-FAT32 */
} fsdata;
typedef int (file_detectfs_func)(void);
--
2.13.5
^ permalink raw reply related [flat|nested] 46+ messages in thread* [U-Boot] [PATCH v2 01/21] part: move efi_guid_t
2017-09-10 11:21 [U-Boot] [PATCH v2 00/21] efi_loader: enough UEFI for standard distro boot Rob Clark
2017-09-10 11:21 ` [U-Boot] [PATCH v3 1/9] fs/fat: split out helper to init fsdata Rob Clark
@ 2017-09-10 11:21 ` Rob Clark
2017-09-11 22:55 ` Heinrich Schuchardt
2017-09-12 12:29 ` Simon Glass
2017-09-10 11:21 ` [U-Boot] [PATCH v3 2/9] fs/fat: introduce new director iterators Rob Clark
` (28 subsequent siblings)
30 siblings, 2 replies; 46+ messages in thread
From: Rob Clark @ 2017-09-10 11:21 UTC (permalink / raw)
To: u-boot
Prep work for next patch.
Signed-off-by: Rob Clark <robdclark@gmail.com>
---
include/efi.h | 4 ++++
include/part.h | 3 ++-
include/part_efi.h | 4 ----
3 files changed, 6 insertions(+), 5 deletions(-)
diff --git a/include/efi.h b/include/efi.h
index 02b78b31b1..87b0b43f20 100644
--- a/include/efi.h
+++ b/include/efi.h
@@ -28,6 +28,10 @@
struct efi_device_path;
+typedef struct {
+ u8 b[16];
+} efi_guid_t;
+
#define EFI_BITS_PER_LONG BITS_PER_LONG
/*
diff --git a/include/part.h b/include/part.h
index 86117a7ce5..b2e820ef8a 100644
--- a/include/part.h
+++ b/include/part.h
@@ -280,8 +280,9 @@ struct part_driver {
#define U_BOOT_PART_TYPE(__name) \
ll_entry_declare(struct part_driver, __name, part_driver)
-#if CONFIG_IS_ENABLED(EFI_PARTITION)
#include <part_efi.h>
+
+#if CONFIG_IS_ENABLED(EFI_PARTITION)
/* disk/part_efi.c */
/**
* write_gpt_table() - Write the GUID Partition Table to disk
diff --git a/include/part_efi.h b/include/part_efi.h
index 317c044795..31e6bc6e14 100644
--- a/include/part_efi.h
+++ b/include/part_efi.h
@@ -58,10 +58,6 @@
/* linux/include/efi.h */
typedef u16 efi_char16_t;
-typedef struct {
- u8 b[16];
-} efi_guid_t;
-
/* based on linux/include/genhd.h */
struct partition {
u8 boot_ind; /* 0x80 - active */
--
2.13.5
^ permalink raw reply related [flat|nested] 46+ messages in thread* [U-Boot] [PATCH v2 01/21] part: move efi_guid_t
2017-09-10 11:21 ` [U-Boot] [PATCH v2 01/21] part: move efi_guid_t Rob Clark
@ 2017-09-11 22:55 ` Heinrich Schuchardt
2017-09-12 12:29 ` Simon Glass
1 sibling, 0 replies; 46+ messages in thread
From: Heinrich Schuchardt @ 2017-09-11 22:55 UTC (permalink / raw)
To: u-boot
On 09/10/2017 01:21 PM, Rob Clark wrote:
> Prep work for next patch.
>
> Signed-off-by: Rob Clark <robdclark@gmail.com>
> ---
> include/efi.h | 4 ++++
> include/part.h | 3 ++-
> include/part_efi.h | 4 ----
> 3 files changed, 6 insertions(+), 5 deletions(-)
>
> diff --git a/include/efi.h b/include/efi.h
> index 02b78b31b1..87b0b43f20 100644
> --- a/include/efi.h
> +++ b/include/efi.h
> @@ -28,6 +28,10 @@
>
> struct efi_device_path;
>
> +typedef struct {
> + u8 b[16];
> +} efi_guid_t;
> +
> #define EFI_BITS_PER_LONG BITS_PER_LONG
>
> /*
> diff --git a/include/part.h b/include/part.h
> index 86117a7ce5..b2e820ef8a 100644
> --- a/include/part.h
> +++ b/include/part.h
> @@ -280,8 +280,9 @@ struct part_driver {
> #define U_BOOT_PART_TYPE(__name) \
> ll_entry_declare(struct part_driver, __name, part_driver)
>
> -#if CONFIG_IS_ENABLED(EFI_PARTITION)
> #include <part_efi.h>
> +
> +#if CONFIG_IS_ENABLED(EFI_PARTITION)
> /* disk/part_efi.c */
> /**
> * write_gpt_table() - Write the GUID Partition Table to disk
> diff --git a/include/part_efi.h b/include/part_efi.h
> index 317c044795..31e6bc6e14 100644
> --- a/include/part_efi.h
> +++ b/include/part_efi.h
> @@ -58,10 +58,6 @@
> /* linux/include/efi.h */
> typedef u16 efi_char16_t;
>
> -typedef struct {
> - u8 b[16];
> -} efi_guid_t;
> -
> /* based on linux/include/genhd.h */
> struct partition {
> u8 boot_ind; /* 0x80 - active */
>
The patch extends
https://lists.denx.de/pipermail/u-boot/2017-September/304970.html
[PATCH 1/1] efi_loader: move efi_guid_t typedef to efi.h
A descriptive commit message might be helpful.
Acked-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
^ permalink raw reply [flat|nested] 46+ messages in thread* [U-Boot] [PATCH v2 01/21] part: move efi_guid_t
2017-09-10 11:21 ` [U-Boot] [PATCH v2 01/21] part: move efi_guid_t Rob Clark
2017-09-11 22:55 ` Heinrich Schuchardt
@ 2017-09-12 12:29 ` Simon Glass
1 sibling, 0 replies; 46+ messages in thread
From: Simon Glass @ 2017-09-12 12:29 UTC (permalink / raw)
To: u-boot
On 10 September 2017 at 05:21, Rob Clark <robdclark@gmail.com> wrote:
> Prep work for next patch.
Move it where?
Reviewed-by: Simon Glass <sjg@chromium.org>
>
> Signed-off-by: Rob Clark <robdclark@gmail.com>
> ---
> include/efi.h | 4 ++++
> include/part.h | 3 ++-
> include/part_efi.h | 4 ----
> 3 files changed, 6 insertions(+), 5 deletions(-)
>
> diff --git a/include/efi.h b/include/efi.h
> index 02b78b31b1..87b0b43f20 100644
> --- a/include/efi.h
> +++ b/include/efi.h
> @@ -28,6 +28,10 @@
>
> struct efi_device_path;
>
> +typedef struct {
> + u8 b[16];
> +} efi_guid_t;
Please add a comment to this
^ permalink raw reply [flat|nested] 46+ messages in thread
* [U-Boot] [PATCH v3 2/9] fs/fat: introduce new director iterators
2017-09-10 11:21 [U-Boot] [PATCH v2 00/21] efi_loader: enough UEFI for standard distro boot Rob Clark
2017-09-10 11:21 ` [U-Boot] [PATCH v3 1/9] fs/fat: split out helper to init fsdata Rob Clark
2017-09-10 11:21 ` [U-Boot] [PATCH v2 01/21] part: move efi_guid_t Rob Clark
@ 2017-09-10 11:21 ` Rob Clark
2017-09-12 12:29 ` Simon Glass
2017-09-10 11:21 ` [U-Boot] [PATCH v2 02/21] part: extract MBR signature from partitions Rob Clark
` (27 subsequent siblings)
30 siblings, 1 reply; 46+ messages in thread
From: Rob Clark @ 2017-09-10 11:21 UTC (permalink / raw)
To: u-boot
[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain; charset="windows-1254", Size: 11855 bytes --]
Untangle directory traversal into a simple iterator, to replace the
existing multi-purpose do_fat_read_at() + get_dentfromdir().
Signed-off-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Łukasz Majewski <lukma@denx.de>
---
fs/fat/fat.c | 356 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++-
include/fat.h | 7 ++
2 files changed, 360 insertions(+), 3 deletions(-)
diff --git a/fs/fat/fat.c b/fs/fat/fat.c
index e1c0a15dc7..ee2bbe38f1 100644
--- a/fs/fat/fat.c
+++ b/fs/fat/fat.c
@@ -812,7 +812,6 @@ static int get_fs_info(fsdata *mydata)
{
boot_sector bs;
volume_info volinfo;
- __u32 root_cluster = 0;
int ret;
ret = read_bootsectandvi(&bs, &volinfo, &mydata->fatsize);
@@ -822,7 +821,6 @@ static int get_fs_info(fsdata *mydata)
}
if (mydata->fatsize == 32) {
- root_cluster = bs.root_cluster;
mydata->fatlength = bs.fat32_length;
} else {
mydata->fatlength = bs.fat_length;
@@ -843,6 +841,7 @@ static int get_fs_info(fsdata *mydata)
if (mydata->fatsize == 32) {
mydata->data_begin = mydata->rootdir_sect -
(mydata->clust_size * 2);
+ mydata->root_cluster = bs.root_cluster;
} else {
mydata->rootdir_size = ((bs.dir_entries[1] * (int)256 +
bs.dir_entries[0]) *
@@ -851,6 +850,9 @@ static int get_fs_info(fsdata *mydata)
mydata->data_begin = mydata->rootdir_sect +
mydata->rootdir_size -
(mydata->clust_size * 2);
+ mydata->root_cluster = (mydata->rootdir_sect -
+ mydata->data_begin) /
+ mydata->clust_size;
}
mydata->fatbufnum = -1;
@@ -868,7 +870,7 @@ static int get_fs_info(fsdata *mydata)
mydata->fatsize, mydata->fat_sect, mydata->fatlength);
debug("Rootdir begins at cluster: %d, sector: %d, offset: %x\n"
"Data begins at: %d\n",
- root_cluster,
+ mydata->root_cluster,
mydata->rootdir_sect,
mydata->rootdir_sect * mydata->sect_size, mydata->data_begin);
debug("Sector size: %d, cluster size: %d\n", mydata->sect_size,
@@ -1245,6 +1247,354 @@ exit:
return ret;
}
+
+/*
+ * Directory iterator, to simplify filesystem traversal
+ *
+ * Implements an iterator pattern to traverse directory tables,
+ * transparently handling directory tables split across multiple
+ * clusters, and the difference between FAT12/FAT16 root directory
+ * (contiguous) and subdirectories + FAT32 root (chained).
+ *
+ * Rough usage:
+ *
+ * for (fat_itr_root(&itr, fsdata); fat_itr_next(&itr); ) {
+ * // to traverse down to a subdirectory pointed to by
+ * // current iterator position:
+ * fat_itr_child(&itr, &itr);
+ * }
+ *
+ * For more complete example, see fat_itr_resolve()
+ */
+
+typedef struct {
+ fsdata *fsdata; /* filesystem parameters */
+ unsigned clust; /* current cluster */
+ int last_cluster; /* set once we've read last cluster */
+ int is_root; /* is iterator at root directory */
+ int remaining; /* remaining dent's in current cluster */
+
+ /* current iterator position values: */
+ dir_entry *dent; /* current directory entry */
+ char l_name[VFAT_MAXLEN_BYTES]; /* long (vfat) name */
+ char s_name[14]; /* short 8.3 name */
+ char *name; /* l_name if there is one, else s_name */
+
+ /* storage for current cluster in memory: */
+ u8 block[MAX_CLUSTSIZE] __aligned(ARCH_DMA_MINALIGN);
+} fat_itr;
+
+static int fat_itr_isdir(fat_itr *itr);
+
+/**
+ * fat_itr_root() - initialize an iterator to start at the root
+ * directory
+ *
+ * @itr: iterator to initialize
+ * @fsdata: filesystem data for the partition
+ * @return 0 on success, else -errno
+ */
+static int fat_itr_root(fat_itr *itr, fsdata *fsdata)
+{
+ if (get_fs_info(fsdata))
+ return -ENXIO;
+
+ itr->fsdata = fsdata;
+ itr->clust = fsdata->root_cluster;
+ itr->dent = NULL;
+ itr->remaining = 0;
+ itr->last_cluster = 0;
+ itr->is_root = 1;
+
+ return 0;
+}
+
+/**
+ * fat_itr_child() - initialize an iterator to descend into a sub-
+ * directory
+ *
+ * Initializes 'itr' to iterate the contents of the directory at
+ * the current cursor position of 'parent'. It is an error to
+ * call this if the current cursor of 'parent' is pointing at a
+ * regular file.
+ *
+ * Note that 'itr' and 'parent' can be the same pointer if you do
+ * not need to preserve 'parent' after this call, which is useful
+ * for traversing directory structure to resolve a file/directory.
+ *
+ * @itr: iterator to initialize
+ * @parent: the iterator pointing at a directory entry in the
+ * parent directory of the directory to iterate
+ */
+static void fat_itr_child(fat_itr *itr, fat_itr *parent)
+{
+ fsdata *mydata = parent->fsdata; /* for silly macros */
+ unsigned clustnum = START(parent->dent);
+
+ assert(fat_itr_isdir(parent));
+
+ itr->fsdata = parent->fsdata;
+ if (clustnum > 0) {
+ itr->clust = clustnum;
+ } else {
+ itr->clust = parent->fsdata->root_cluster;
+ }
+ itr->dent = NULL;
+ itr->remaining = 0;
+ itr->last_cluster = 0;
+ itr->is_root = 0;
+}
+
+static void *next_cluster(fat_itr *itr)
+{
+ fsdata *mydata = itr->fsdata; /* for silly macros */
+ int ret;
+ u32 sect;
+
+ /* have we reached the end? */
+ if (itr->last_cluster)
+ return NULL;
+
+ sect = clust_to_sect(itr->fsdata, itr->clust);
+
+ debug("FAT read(sect=%d), clust_size=%d, DIRENTSPERBLOCK=%zd\n",
+ sect, itr->fsdata->clust_size, DIRENTSPERBLOCK);
+
+ /*
+ * NOTE: do_fat_read_at() had complicated logic to deal w/
+ * vfat names that span multiple clusters in the fat16 case,
+ * which get_dentfromdir() probably also needed (and was
+ * missing). And not entirely sure what fat32 didn't have
+ * the same issue.. We solve that by only caring about one
+ * dent at a time and iteratively constructing the vfat long
+ * name.
+ */
+ ret = disk_read(sect, itr->fsdata->clust_size,
+ itr->block);
+ if (ret < 0) {
+ debug("Error: reading block\n");
+ return NULL;
+ }
+
+ if (itr->is_root && itr->fsdata->fatsize != 32) {
+ itr->clust++;
+ sect = clust_to_sect(itr->fsdata, itr->clust);
+ if (sect - itr->fsdata->rootdir_sect >=
+ itr->fsdata->rootdir_size) {
+ debug("cursect: 0x%x\n", itr->clust);
+ itr->last_cluster = 1;
+ }
+ } else {
+ itr->clust = get_fatent(itr->fsdata, itr->clust);
+ if (CHECK_CLUST(itr->clust, itr->fsdata->fatsize)) {
+ debug("cursect: 0x%x\n", itr->clust);
+ itr->last_cluster = 1;
+ }
+ }
+
+ return itr->block;
+}
+
+static dir_entry *next_dent(fat_itr *itr)
+{
+ if (itr->remaining == 0) {
+ struct dir_entry *dent = next_cluster(itr);
+ unsigned nbytes = itr->fsdata->sect_size *
+ itr->fsdata->clust_size;
+
+ /* have we reached the last cluster? */
+ if (!dent)
+ return NULL;
+
+ itr->remaining = nbytes / sizeof(dir_entry) - 1;
+ itr->dent = dent;
+ } else {
+ itr->remaining--;
+ itr->dent++;
+ }
+
+ /* have we reached the last valid entry? */
+ if (itr->dent->name[0] == 0)
+ return NULL;
+
+ return itr->dent;
+}
+
+static dir_entry *extract_vfat_name(fat_itr *itr)
+{
+ struct dir_entry *dent = itr->dent;
+ int seqn = itr->dent->name[0] & ~LAST_LONG_ENTRY_MASK;
+ u8 chksum, alias_checksum = ((dir_slot *)dent)->alias_checksum;
+ int n = 0;
+
+ while (seqn--) {
+ char buf[13];
+ int idx = 0;
+
+ slot2str((dir_slot *)dent, buf, &idx);
+
+ /* shift accumulated long-name up and copy new part in: */
+ memmove(itr->l_name + idx, itr->l_name, n);
+ memcpy(itr->l_name, buf, idx);
+ n += idx;
+
+ dent = next_dent(itr);
+ if (!dent)
+ return NULL;
+ }
+
+ itr->l_name[n] = '\0';
+
+ chksum = mkcksum(dent->name, dent->ext);
+
+ /* checksum mismatch could mean deleted file, etc.. skip it: */
+ if (chksum != alias_checksum) {
+ debug("** chksum=%x, alias_checksum=%x, l_name=%s, s_name=%8s.%3s\n",
+ chksum, alias_checksum, itr->l_name, dent->name, dent->ext);
+ return NULL;
+ }
+
+ return dent;
+}
+
+/**
+ * fat_itr_next() - step to the next entry in a directory
+ *
+ * Must be called once on a new iterator before the cursor is valid.
+ *
+ * @itr: the iterator to iterate
+ * @return boolean, 1 if success or 0 if no more entries in the
+ * current directory
+ */
+static int fat_itr_next(fat_itr *itr)
+{
+ dir_entry *dent;
+
+ itr->name = NULL;
+
+ while (1) {
+ dent = next_dent(itr);
+ if (!dent)
+ return 0;
+
+ if (dent->name[0] == DELETED_FLAG ||
+ dent->name[0] == aRING)
+ continue;
+
+ if (dent->attr & ATTR_VOLUME) {
+ if (vfat_enabled &&
+ (dent->attr & ATTR_VFAT) == ATTR_VFAT &&
+ (dent->name[0] & LAST_LONG_ENTRY_MASK)) {
+ dent = extract_vfat_name(itr);
+ if (!dent)
+ continue;
+ itr->name = itr->l_name;
+ break;
+ } else {
+ /* Volume label or VFAT entry, skip */
+ continue;
+ }
+ }
+
+ break;
+ }
+
+ get_name(dent, itr->s_name);
+ if (!itr->name)
+ itr->name = itr->s_name;
+
+ return 1;
+}
+
+/**
+ * fat_itr_isdir() - is current cursor position pointing to a directory
+ *
+ * @itr: the iterator
+ * @return true if cursor is at a directory
+ */
+static int fat_itr_isdir(fat_itr *itr)
+{
+ return !!(itr->dent->attr & ATTR_DIR);
+}
+
+/*
+ * Helpers:
+ */
+
+#define TYPE_FILE 0x1
+#define TYPE_DIR 0x2
+#define TYPE_ANY (TYPE_FILE | TYPE_DIR)
+
+/**
+ * fat_itr_resolve() - traverse directory structure to resolve the
+ * requested path.
+ *
+ * Traverse directory structure to the requested path. If the specified
+ * path is to a directory, this will descend into the directory and
+ * leave it iterator at the start of the directory. If the path is to a
+ * file, it will leave the iterator in the parent directory with current
+ * cursor at file's entry in the directory.
+ *
+ * @itr: iterator initialized to root
+ * @path: the requested path
+ * @type: bitmask of allowable file types
+ * @return 0 on success or -errno
+ */
+static int fat_itr_resolve(fat_itr *itr, const char *path, unsigned type)
+{
+ const char *next;
+
+ /* chomp any extra leading slashes: */
+ while (path[0] && ISDIRDELIM(path[0]))
+ path++;
+
+ /* are we at the end? */
+ if (strlen(path) == 0) {
+ if (!(type & TYPE_DIR))
+ return -ENOENT;
+ return 0;
+ }
+
+ /* find length of next path entry: */
+ next = path;
+ while (next[0] && !ISDIRDELIM(next[0]))
+ next++;
+
+ while (fat_itr_next(itr)) {
+ int match = 0;
+ unsigned n = max(strlen(itr->name), (size_t)(next - path));
+
+ /* check both long and short name: */
+ if (!strncasecmp(path, itr->name, n))
+ match = 1;
+ else if (itr->name != itr->s_name &&
+ !strncasecmp(path, itr->s_name, n))
+ match = 1;
+
+ if (!match)
+ continue;
+
+ if (fat_itr_isdir(itr)) {
+ /* recurse into directory: */
+ fat_itr_child(itr, itr);
+ return fat_itr_resolve(itr, next, type);
+ } else if (next[0]) {
+ /*
+ * If next is not empty then we have a case
+ * like: /path/to/realfile/nonsense
+ */
+ debug("bad trailing path: %s\n", next);
+ return -ENOENT;
+ } else if (!(type & TYPE_FILE)) {
+ return -ENOTDIR;
+ } else {
+ return 0;
+ }
+ }
+
+ return -ENOENT;
+}
+
int do_fat_read(const char *filename, void *buffer, loff_t maxsize, int dols,
loff_t *actread)
{
diff --git a/include/fat.h b/include/fat.h
index b671ee8f81..21bb6666cf 100644
--- a/include/fat.h
+++ b/include/fat.h
@@ -175,8 +175,15 @@ typedef struct {
int data_begin; /* The sector of the first cluster, can be negative */
int fatbufnum; /* Used by get_fatent, init to -1 */
int rootdir_size; /* Size of root dir for non-FAT32 */
+ __u32 root_cluster; /* First cluster of root dir for FAT32 */
} fsdata;
+/* TODO clean up places that are open-coding this: */
+static inline u32 clust_to_sect(fsdata *fsdata, u32 clust)
+{
+ return fsdata->data_begin + clust * fsdata->clust_size;
+}
+
typedef int (file_detectfs_func)(void);
typedef int (file_ls_func)(const char *dir);
typedef int (file_read_func)(const char *filename, void *buffer,
--
2.13.5
^ permalink raw reply related [flat|nested] 46+ messages in thread* [U-Boot] [PATCH v3 2/9] fs/fat: introduce new director iterators
2017-09-10 11:21 ` [U-Boot] [PATCH v3 2/9] fs/fat: introduce new director iterators Rob Clark
@ 2017-09-12 12:29 ` Simon Glass
0 siblings, 0 replies; 46+ messages in thread
From: Simon Glass @ 2017-09-12 12:29 UTC (permalink / raw)
To: u-boot
[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain; charset="windows-1254", Size: 733 bytes --]
On 10 September 2017 at 05:21, Rob Clark <robdclark@gmail.com> wrote:
> Untangle directory traversal into a simple iterator, to replace the
> existing multi-purpose do_fat_read_at() + get_dentfromdir().
>
> Signed-off-by: Rob Clark <robdclark@gmail.com>
> Reviewed-by: Łukasz Majewski <lukma@denx.de>
> ---
> fs/fat/fat.c | 356 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++-
> include/fat.h | 7 ++
> 2 files changed, 360 insertions(+), 3 deletions(-)
Reviewed-by: Simon Glass <sjg@chromium.org>
But I still think that fat_itr should not be a typedef, since this is
something you are adding. I understand what you are saying about the
existing code, but really that should be converted at some point, as
you say.
^ permalink raw reply [flat|nested] 46+ messages in thread
* [U-Boot] [PATCH v2 02/21] part: extract MBR signature from partitions
2017-09-10 11:21 [U-Boot] [PATCH v2 00/21] efi_loader: enough UEFI for standard distro boot Rob Clark
` (2 preceding siblings ...)
2017-09-10 11:21 ` [U-Boot] [PATCH v3 2/9] fs/fat: introduce new director iterators Rob Clark
@ 2017-09-10 11:21 ` Rob Clark
2017-09-12 12:29 ` Simon Glass
2017-09-10 11:21 ` [U-Boot] [PATCH v2 03/21] efi: add some missing __packed Rob Clark
` (26 subsequent siblings)
30 siblings, 1 reply; 46+ messages in thread
From: Rob Clark @ 2017-09-10 11:21 UTC (permalink / raw)
To: u-boot
From: Peter Jones <pjones@redhat.com>
EFI client programs need the signature information from the partition
table to determine the disk a partition is on, so we need to fill that
in here.
Signed-off-by: Peter Jones <pjones@redhat.com>
[separated from efi_loader part, and fixed build-errors for non-
CONFIG_EFI_PARTITION case]
Signed-off-by: Rob Clark <robdclark@gmail.com>
---
disk/part_dos.c | 12 +++++++++---
disk/part_efi.c | 20 ++++++++++++++++++++
include/blk.h | 15 +++++++++++++++
3 files changed, 44 insertions(+), 3 deletions(-)
diff --git a/disk/part_dos.c b/disk/part_dos.c
index 7ede15ec26..850a538e83 100644
--- a/disk/part_dos.c
+++ b/disk/part_dos.c
@@ -89,14 +89,20 @@ static int test_block_type(unsigned char *buffer)
static int part_test_dos(struct blk_desc *dev_desc)
{
- ALLOC_CACHE_ALIGN_BUFFER(unsigned char, buffer, dev_desc->blksz);
+ ALLOC_CACHE_ALIGN_BUFFER(legacy_mbr, mbr, dev_desc->blksz);
- if (blk_dread(dev_desc, 0, 1, (ulong *)buffer) != 1)
+ if (blk_dread(dev_desc, 0, 1, (ulong *)mbr) != 1)
return -1;
- if (test_block_type(buffer) != DOS_MBR)
+ if (test_block_type((unsigned char *)mbr) != DOS_MBR)
return -1;
+ if (dev_desc->sig_type == SIG_TYPE_NONE &&
+ mbr->unique_mbr_signature != 0) {
+ dev_desc->sig_type = SIG_TYPE_MBR;
+ dev_desc->mbr_sig = mbr->unique_mbr_signature;
+ }
+
return 0;
}
diff --git a/disk/part_efi.c b/disk/part_efi.c
index 2973d52f6a..208bb14ee8 100644
--- a/disk/part_efi.c
+++ b/disk/part_efi.c
@@ -923,11 +923,19 @@ static int is_pmbr_valid(legacy_mbr * mbr)
static int is_gpt_valid(struct blk_desc *dev_desc, u64 lba,
gpt_header *pgpt_head, gpt_entry **pgpt_pte)
{
+ ALLOC_CACHE_ALIGN_BUFFER(legacy_mbr, mbr, dev_desc->blksz);
+
if (!dev_desc || !pgpt_head) {
printf("%s: Invalid Argument(s)\n", __func__);
return 0;
}
+ /* Read MBR Header from device */
+ if (blk_dread(dev_desc, 0, 1, (ulong *)mbr) != 1) {
+ printf("*** ERROR: Can't read MBR header ***\n");
+ return 0;
+ }
+
/* Read GPT Header from device */
if (blk_dread(dev_desc, (lbaint_t)lba, 1, pgpt_head) != 1) {
printf("*** ERROR: Can't read GPT header ***\n");
@@ -937,6 +945,18 @@ static int is_gpt_valid(struct blk_desc *dev_desc, u64 lba,
if (validate_gpt_header(pgpt_head, (lbaint_t)lba, dev_desc->lba))
return 0;
+ if (dev_desc->sig_type == SIG_TYPE_NONE) {
+ efi_guid_t empty = {};
+ if (memcmp(&pgpt_head->disk_guid, &empty, sizeof(empty))) {
+ dev_desc->sig_type = SIG_TYPE_GUID;
+ memcpy(&dev_desc->guid_sig, &pgpt_head->disk_guid,
+ sizeof(empty));
+ } else if (mbr->unique_mbr_signature != 0) {
+ dev_desc->sig_type = SIG_TYPE_MBR;
+ dev_desc->mbr_sig = mbr->unique_mbr_signature;
+ }
+ }
+
/* Read and allocate Partition Table Entries */
*pgpt_pte = alloc_read_gpt_entries(dev_desc, pgpt_head);
if (*pgpt_pte == NULL) {
diff --git a/include/blk.h b/include/blk.h
index a106f9ca0e..3c59fdb3d4 100644
--- a/include/blk.h
+++ b/include/blk.h
@@ -8,6 +8,8 @@
#ifndef BLK_H
#define BLK_H
+#include <efi.h>
+
#ifdef CONFIG_SYS_64BIT_LBA
typedef uint64_t lbaint_t;
#define LBAFlength "ll"
@@ -36,6 +38,14 @@ enum if_type {
IF_TYPE_COUNT, /* Number of interface types */
};
+enum sig_type {
+ SIG_TYPE_NONE,
+ SIG_TYPE_MBR,
+ SIG_TYPE_GUID,
+
+ SIG_TYPE_COUNT /* Number of signature types */
+};
+
/*
* With driver model (CONFIG_BLK) this is uclass platform data, accessible
* with dev_get_uclass_platdata(dev)
@@ -63,6 +73,11 @@ struct blk_desc {
char vendor[40+1]; /* IDE model, SCSI Vendor */
char product[20+1]; /* IDE Serial no, SCSI product */
char revision[8+1]; /* firmware revision */
+ enum sig_type sig_type; /* Partition table signature type */
+ union {
+ uint32_t mbr_sig; /* MBR integer signature */
+ efi_guid_t guid_sig; /* GPT GUID Signature */
+ };
#if CONFIG_IS_ENABLED(BLK)
/*
* For now we have a few functions which take struct blk_desc as a
--
2.13.5
^ permalink raw reply related [flat|nested] 46+ messages in thread* [U-Boot] [PATCH v2 02/21] part: extract MBR signature from partitions
2017-09-10 11:21 ` [U-Boot] [PATCH v2 02/21] part: extract MBR signature from partitions Rob Clark
@ 2017-09-12 12:29 ` Simon Glass
0 siblings, 0 replies; 46+ messages in thread
From: Simon Glass @ 2017-09-12 12:29 UTC (permalink / raw)
To: u-boot
Hi Rob,
On 10 September 2017 at 05:21, Rob Clark <robdclark@gmail.com> wrote:
> From: Peter Jones <pjones@redhat.com>
>
> EFI client programs need the signature information from the partition
> table to determine the disk a partition is on, so we need to fill that
> in here.
>
> Signed-off-by: Peter Jones <pjones@redhat.com>
> [separated from efi_loader part, and fixed build-errors for non-
> CONFIG_EFI_PARTITION case]
> Signed-off-by: Rob Clark <robdclark@gmail.com>
> ---
> disk/part_dos.c | 12 +++++++++---
> disk/part_efi.c | 20 ++++++++++++++++++++
> include/blk.h | 15 +++++++++++++++
> 3 files changed, 44 insertions(+), 3 deletions(-)
>
Reviewed-by: Simon Glass <sjg@chromium.org>
Please see below.
> diff --git a/disk/part_dos.c b/disk/part_dos.c
> index 7ede15ec26..850a538e83 100644
> --- a/disk/part_dos.c
> +++ b/disk/part_dos.c
> @@ -89,14 +89,20 @@ static int test_block_type(unsigned char *buffer)
>
> static int part_test_dos(struct blk_desc *dev_desc)
> {
> - ALLOC_CACHE_ALIGN_BUFFER(unsigned char, buffer, dev_desc->blksz);
> + ALLOC_CACHE_ALIGN_BUFFER(legacy_mbr, mbr, dev_desc->blksz);
>
> - if (blk_dread(dev_desc, 0, 1, (ulong *)buffer) != 1)
> + if (blk_dread(dev_desc, 0, 1, (ulong *)mbr) != 1)
> return -1;
>
> - if (test_block_type(buffer) != DOS_MBR)
> + if (test_block_type((unsigned char *)mbr) != DOS_MBR)
> return -1;
>
> + if (dev_desc->sig_type == SIG_TYPE_NONE &&
> + mbr->unique_mbr_signature != 0) {
> + dev_desc->sig_type = SIG_TYPE_MBR;
> + dev_desc->mbr_sig = mbr->unique_mbr_signature;
> + }
> +
> return 0;
> }
>
> diff --git a/disk/part_efi.c b/disk/part_efi.c
> index 2973d52f6a..208bb14ee8 100644
> --- a/disk/part_efi.c
> +++ b/disk/part_efi.c
> @@ -923,11 +923,19 @@ static int is_pmbr_valid(legacy_mbr * mbr)
> static int is_gpt_valid(struct blk_desc *dev_desc, u64 lba,
> gpt_header *pgpt_head, gpt_entry **pgpt_pte)
> {
> + ALLOC_CACHE_ALIGN_BUFFER(legacy_mbr, mbr, dev_desc->blksz);
> +
> if (!dev_desc || !pgpt_head) {
> printf("%s: Invalid Argument(s)\n", __func__);
> return 0;
> }
>
> + /* Read MBR Header from device */
> + if (blk_dread(dev_desc, 0, 1, (ulong *)mbr) != 1) {
> + printf("*** ERROR: Can't read MBR header ***\n");
> + return 0;
> + }
> +
> /* Read GPT Header from device */
> if (blk_dread(dev_desc, (lbaint_t)lba, 1, pgpt_head) != 1) {
> printf("*** ERROR: Can't read GPT header ***\n");
> @@ -937,6 +945,18 @@ static int is_gpt_valid(struct blk_desc *dev_desc, u64 lba,
> if (validate_gpt_header(pgpt_head, (lbaint_t)lba, dev_desc->lba))
> return 0;
>
> + if (dev_desc->sig_type == SIG_TYPE_NONE) {
> + efi_guid_t empty = {};
> + if (memcmp(&pgpt_head->disk_guid, &empty, sizeof(empty))) {
> + dev_desc->sig_type = SIG_TYPE_GUID;
> + memcpy(&dev_desc->guid_sig, &pgpt_head->disk_guid,
> + sizeof(empty));
> + } else if (mbr->unique_mbr_signature != 0) {
> + dev_desc->sig_type = SIG_TYPE_MBR;
> + dev_desc->mbr_sig = mbr->unique_mbr_signature;
> + }
> + }
> +
> /* Read and allocate Partition Table Entries */
> *pgpt_pte = alloc_read_gpt_entries(dev_desc, pgpt_head);
> if (*pgpt_pte == NULL) {
> diff --git a/include/blk.h b/include/blk.h
> index a106f9ca0e..3c59fdb3d4 100644
> --- a/include/blk.h
> +++ b/include/blk.h
> @@ -8,6 +8,8 @@
> #ifndef BLK_H
> #define BLK_H
>
> +#include <efi.h>
> +
> #ifdef CONFIG_SYS_64BIT_LBA
> typedef uint64_t lbaint_t;
> #define LBAFlength "ll"
> @@ -36,6 +38,14 @@ enum if_type {
> IF_TYPE_COUNT, /* Number of interface types */
> };
>
> +enum sig_type {
Please add a comment about what this is
> + SIG_TYPE_NONE,
> + SIG_TYPE_MBR,
> + SIG_TYPE_GUID,
> +
> + SIG_TYPE_COUNT /* Number of signature types */
> +};
> +
> /*
> * With driver model (CONFIG_BLK) this is uclass platform data, accessible
> * with dev_get_uclass_platdata(dev)
> @@ -63,6 +73,11 @@ struct blk_desc {
> char vendor[40+1]; /* IDE model, SCSI Vendor */
> char product[20+1]; /* IDE Serial no, SCSI product */
> char revision[8+1]; /* firmware revision */
> + enum sig_type sig_type; /* Partition table signature type */
> + union {
> + uint32_t mbr_sig; /* MBR integer signature */
> + efi_guid_t guid_sig; /* GPT GUID Signature */
> + };
> #if CONFIG_IS_ENABLED(BLK)
> /*
> * For now we have a few functions which take struct blk_desc as a
> --
> 2.13.5
>
Regards,
Simon
^ permalink raw reply [flat|nested] 46+ messages in thread
* [U-Boot] [PATCH v2 03/21] efi: add some missing __packed
2017-09-10 11:21 [U-Boot] [PATCH v2 00/21] efi_loader: enough UEFI for standard distro boot Rob Clark
` (3 preceding siblings ...)
2017-09-10 11:21 ` [U-Boot] [PATCH v2 02/21] part: extract MBR signature from partitions Rob Clark
@ 2017-09-10 11:21 ` Rob Clark
2017-09-12 12:30 ` Simon Glass
2017-09-10 11:21 ` [U-Boot] [PATCH v3 3/9] fat/fs: convert to directory iterators Rob Clark
` (25 subsequent siblings)
30 siblings, 1 reply; 46+ messages in thread
From: Rob Clark @ 2017-09-10 11:21 UTC (permalink / raw)
To: u-boot
All of the device-path related structures should be packed. UEFI
defines the device-path as a byte-aligned data structure.
Signed-off-by: Rob Clark <robdclark@gmail.com>
---
include/efi_api.h | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/include/efi_api.h b/include/efi_api.h
index ec1b321e8e..175341348e 100644
--- a/include/efi_api.h
+++ b/include/efi_api.h
@@ -284,11 +284,11 @@ struct efi_device_path {
u8 type;
u8 sub_type;
u16 length;
-};
+} __packed;
struct efi_mac_addr {
u8 addr[32];
-};
+} __packed;
#define DEVICE_PATH_TYPE_MESSAGING_DEVICE 0x03
# define DEVICE_PATH_SUB_TYPE_MSG_MAC_ADDR 0x0b
@@ -297,7 +297,7 @@ struct efi_device_path_mac_addr {
struct efi_device_path dp;
struct efi_mac_addr mac;
u8 if_type;
-};
+} __packed;
#define DEVICE_PATH_TYPE_MEDIA_DEVICE 0x04
# define DEVICE_PATH_SUB_TYPE_FILE_PATH 0x04
@@ -305,7 +305,7 @@ struct efi_device_path_mac_addr {
struct efi_device_path_file_path {
struct efi_device_path dp;
u16 str[32];
-};
+} __packed;
#define BLOCK_IO_GUID \
EFI_GUID(0x964e5b21, 0x6459, 0x11d2, \
--
2.13.5
^ permalink raw reply related [flat|nested] 46+ messages in thread* [U-Boot] [PATCH v3 3/9] fat/fs: convert to directory iterators
2017-09-10 11:21 [U-Boot] [PATCH v2 00/21] efi_loader: enough UEFI for standard distro boot Rob Clark
` (4 preceding siblings ...)
2017-09-10 11:21 ` [U-Boot] [PATCH v2 03/21] efi: add some missing __packed Rob Clark
@ 2017-09-10 11:21 ` Rob Clark
2017-09-10 11:21 ` [U-Boot] [PATCH v2 04/21] efi: add some more device path structures Rob Clark
` (24 subsequent siblings)
30 siblings, 0 replies; 46+ messages in thread
From: Rob Clark @ 2017-09-10 11:21 UTC (permalink / raw)
To: u-boot
[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain; charset="windows-1254", Size: 19324 bytes --]
And drop a whole lot of ugly code!
Signed-off-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Łukasz Majewski <lukma@denx.de>
---
fs/fat/fat.c | 722 +++++++---------------------------------------------------
include/fat.h | 6 -
2 files changed, 76 insertions(+), 652 deletions(-)
diff --git a/fs/fat/fat.c b/fs/fat/fat.c
index ee2bbe38f1..bbba7947ee 100644
--- a/fs/fat/fat.c
+++ b/fs/fat/fat.c
@@ -119,22 +119,6 @@ int fat_register_device(struct blk_desc *dev_desc, int part_no)
}
/*
- * Get the first occurence of a directory delimiter ('/' or '\') in a string.
- * Return index into string if found, -1 otherwise.
- */
-static int dirdelim(char *str)
-{
- char *start = str;
-
- while (*str != '\0') {
- if (ISDIRDELIM(*str))
- return str - start;
- str++;
- }
- return -1;
-}
-
-/*
* Extract zero terminated short name from a directory entry.
*/
static void get_name(dir_entry *dirent, char *s_name)
@@ -468,95 +452,6 @@ static int slot2str(dir_slot *slotptr, char *l_name, int *idx)
return 0;
}
-/*
- * Extract the full long filename starting at 'retdent' (which is really
- * a slot) into 'l_name'. If successful also copy the real directory entry
- * into 'retdent'
- * Return 0 on success, -1 otherwise.
- */
-static int
-get_vfatname(fsdata *mydata, int curclust, __u8 *cluster,
- dir_entry *retdent, char *l_name)
-{
- dir_entry *realdent;
- dir_slot *slotptr = (dir_slot *)retdent;
- __u8 *buflimit = cluster + mydata->sect_size * ((curclust == 0) ?
- PREFETCH_BLOCKS :
- mydata->clust_size);
- __u8 counter = (slotptr->id & ~LAST_LONG_ENTRY_MASK) & 0xff;
- int idx = 0;
-
- if (counter > VFAT_MAXSEQ) {
- debug("Error: VFAT name is too long\n");
- return -1;
- }
-
- while ((__u8 *)slotptr < buflimit) {
- if (counter == 0)
- break;
- if (((slotptr->id & ~LAST_LONG_ENTRY_MASK) & 0xff) != counter)
- return -1;
- slotptr++;
- counter--;
- }
-
- if ((__u8 *)slotptr >= buflimit) {
- dir_slot *slotptr2;
-
- if (curclust == 0)
- return -1;
- curclust = get_fatent(mydata, curclust);
- if (CHECK_CLUST(curclust, mydata->fatsize)) {
- debug("curclust: 0x%x\n", curclust);
- printf("Invalid FAT entry\n");
- return -1;
- }
-
- if (get_cluster(mydata, curclust, get_contents_vfatname_block,
- mydata->clust_size * mydata->sect_size) != 0) {
- debug("Error: reading directory block\n");
- return -1;
- }
-
- slotptr2 = (dir_slot *)get_contents_vfatname_block;
- while (counter > 0) {
- if (((slotptr2->id & ~LAST_LONG_ENTRY_MASK)
- & 0xff) != counter)
- return -1;
- slotptr2++;
- counter--;
- }
-
- /* Save the real directory entry */
- realdent = (dir_entry *)slotptr2;
- while ((__u8 *)slotptr2 > get_contents_vfatname_block) {
- slotptr2--;
- slot2str(slotptr2, l_name, &idx);
- }
- } else {
- /* Save the real directory entry */
- realdent = (dir_entry *)slotptr;
- }
-
- do {
- slotptr--;
- if (slot2str(slotptr, l_name, &idx))
- break;
- } while (!(slotptr->id & LAST_LONG_ENTRY_MASK));
-
- l_name[idx] = '\0';
- if (*l_name == DELETED_FLAG)
- *l_name = '\0';
- else if (*l_name == aRING)
- *l_name = DELETED_FLAG;
- downcase(l_name);
-
- /* Return the real directory entry */
- memcpy(retdent, realdent, sizeof(dir_entry));
-
- return 0;
-}
-
/* Calculate short name checksum */
static __u8 mkcksum(const char name[8], const char ext[3])
{
@@ -573,169 +468,13 @@ static __u8 mkcksum(const char name[8], const char ext[3])
}
/*
- * Get the directory entry associated with 'filename' from the directory
- * starting at 'startsect'
+ * TODO these should go away once fat_write is reworked to use the
+ * directory iterator
*/
__u8 get_dentfromdir_block[MAX_CLUSTSIZE]
__aligned(ARCH_DMA_MINALIGN);
-
-static dir_entry *get_dentfromdir(fsdata *mydata, int startsect,
- char *filename, dir_entry *retdent,
- int dols)
-{
- __u16 prevcksum = 0xffff;
- __u32 curclust = START(retdent);
- int files = 0, dirs = 0;
-
- debug("get_dentfromdir: %s\n", filename);
-
- while (1) {
- dir_entry *dentptr;
-
- int i;
-
- if (get_cluster(mydata, curclust, get_dentfromdir_block,
- mydata->clust_size * mydata->sect_size) != 0) {
- debug("Error: reading directory block\n");
- return NULL;
- }
-
- dentptr = (dir_entry *)get_dentfromdir_block;
-
- for (i = 0; i < DIRENTSPERCLUST; i++) {
- char s_name[14], l_name[VFAT_MAXLEN_BYTES];
-
- l_name[0] = '\0';
- if (dentptr->name[0] == DELETED_FLAG) {
- dentptr++;
- continue;
- }
- if ((dentptr->attr & ATTR_VOLUME)) {
- if (vfat_enabled &&
- (dentptr->attr & ATTR_VFAT) == ATTR_VFAT &&
- (dentptr->name[0] & LAST_LONG_ENTRY_MASK)) {
- prevcksum = ((dir_slot *)dentptr)->alias_checksum;
- get_vfatname(mydata, curclust,
- get_dentfromdir_block,
- dentptr, l_name);
- if (dols) {
- int isdir;
- char dirc;
- int doit = 0;
-
- isdir = (dentptr->attr & ATTR_DIR);
-
- if (isdir) {
- dirs++;
- dirc = '/';
- doit = 1;
- } else {
- dirc = ' ';
- if (l_name[0] != 0) {
- files++;
- doit = 1;
- }
- }
- if (doit) {
- if (dirc == ' ') {
- printf(" %8u %s%c\n",
- FAT2CPU32(dentptr->size),
- l_name,
- dirc);
- } else {
- printf(" %s%c\n",
- l_name,
- dirc);
- }
- }
- dentptr++;
- continue;
- }
- debug("vfatname: |%s|\n", l_name);
- } else {
- /* Volume label or VFAT entry */
- dentptr++;
- continue;
- }
- }
- if (dentptr->name[0] == 0) {
- if (dols) {
- printf("\n%d file(s), %d dir(s)\n\n",
- files, dirs);
- }
- debug("Dentname == NULL - %d\n", i);
- return NULL;
- }
- if (vfat_enabled) {
- __u8 csum = mkcksum(dentptr->name, dentptr->ext);
- if (dols && csum == prevcksum) {
- prevcksum = 0xffff;
- dentptr++;
- continue;
- }
- }
-
- get_name(dentptr, s_name);
- if (dols) {
- int isdir = (dentptr->attr & ATTR_DIR);
- char dirc;
- int doit = 0;
-
- if (isdir) {
- dirs++;
- dirc = '/';
- doit = 1;
- } else {
- dirc = ' ';
- if (s_name[0] != 0) {
- files++;
- doit = 1;
- }
- }
-
- if (doit) {
- if (dirc == ' ') {
- printf(" %8u %s%c\n",
- FAT2CPU32(dentptr->size),
- s_name, dirc);
- } else {
- printf(" %s%c\n",
- s_name, dirc);
- }
- }
-
- dentptr++;
- continue;
- }
-
- if (strcmp(filename, s_name)
- && strcmp(filename, l_name)) {
- debug("Mismatch: |%s|%s|\n", s_name, l_name);
- dentptr++;
- continue;
- }
-
- memcpy(retdent, dentptr, sizeof(dir_entry));
-
- debug("DentName: %s", s_name);
- debug(", start: 0x%x", START(dentptr));
- debug(", size: 0x%x %s\n",
- FAT2CPU32(dentptr->size),
- (dentptr->attr & ATTR_DIR) ? "(DIR)" : "");
-
- return retdent;
- }
-
- curclust = get_fatent(mydata, curclust);
- if (CHECK_CLUST(curclust, mydata->fatsize)) {
- debug("curclust: 0x%x\n", curclust);
- printf("Invalid FAT entry\n");
- return NULL;
- }
- }
-
- return NULL;
-}
+__u8 do_fat_read_at_block[MAX_CLUSTSIZE]
+ __aligned(ARCH_DMA_MINALIGN);
/*
* Read boot sector and volume info from a FAT filesystem
@@ -879,374 +618,6 @@ static int get_fs_info(fsdata *mydata)
return 0;
}
-__u8 do_fat_read_at_block[MAX_CLUSTSIZE]
- __aligned(ARCH_DMA_MINALIGN);
-
-int do_fat_read_at(const char *filename, loff_t pos, void *buffer,
- loff_t maxsize, int dols, int dogetsize, loff_t *size)
-{
- char fnamecopy[2048];
- fsdata datablock;
- fsdata *mydata = &datablock;
- dir_entry *dentptr = NULL;
- __u16 prevcksum = 0xffff;
- char *subname = "";
- __u32 cursect;
- int idx, isdir = 0;
- int files = 0, dirs = 0;
- int ret = -1;
- int firsttime;
- __u32 root_cluster = 0;
- __u32 read_blk;
- int rootdir_size = 0;
- int buffer_blk_cnt;
- int do_read;
- __u8 *dir_ptr;
-
- if (get_fs_info(mydata))
- return -1;
-
- cursect = mydata->rootdir_sect;
-
- /* "cwd" is always the root... */
- while (ISDIRDELIM(*filename))
- filename++;
-
- /* Make a copy of the filename and convert it to lowercase */
- strcpy(fnamecopy, filename);
- downcase(fnamecopy);
-
-root_reparse:
- if (*fnamecopy == '\0') {
- if (!dols)
- goto exit;
-
- dols = LS_ROOT;
- } else if ((idx = dirdelim(fnamecopy)) >= 0) {
- isdir = 1;
- fnamecopy[idx] = '\0';
- subname = fnamecopy + idx + 1;
-
- /* Handle multiple delimiters */
- while (ISDIRDELIM(*subname))
- subname++;
- } else if (dols) {
- isdir = 1;
- }
-
- buffer_blk_cnt = 0;
- firsttime = 1;
- while (1) {
- int i;
-
- if (mydata->fatsize == 32 || firsttime) {
- dir_ptr = do_fat_read_at_block;
- firsttime = 0;
- } else {
- /**
- * FAT16 sector buffer modification:
- * Each loop, the second buffered block is moved to
- * the buffer begin, and two next sectors are read
- * next to the previously moved one. So the sector
- * buffer keeps always 3 sectors for fat16.
- * And the current sector is the buffer second sector
- * beside the "firsttime" read, when it is the first one.
- *
- * PREFETCH_BLOCKS is 2 for FAT16 == loop[0:1]
- * n = computed root dir sector
- * loop | cursect-1 | cursect | cursect+1 |
- * 0 | sector n+0 | sector n+1 | none |
- * 1 | none | sector n+0 | sector n+1 |
- * 0 | sector n+1 | sector n+2 | sector n+3 |
- * 1 | sector n+3 | ...
- */
- dir_ptr = (do_fat_read_at_block + mydata->sect_size);
- memcpy(do_fat_read_at_block, dir_ptr, mydata->sect_size);
- }
-
- do_read = 1;
-
- if (mydata->fatsize == 32 && buffer_blk_cnt)
- do_read = 0;
-
- if (do_read) {
- read_blk = (mydata->fatsize == 32) ?
- mydata->clust_size : PREFETCH_BLOCKS;
-
- debug("FAT read(sect=%d, cnt:%d), clust_size=%d, DIRENTSPERBLOCK=%zd\n",
- cursect, read_blk, mydata->clust_size, DIRENTSPERBLOCK);
-
- if (disk_read(cursect, read_blk, dir_ptr) < 0) {
- debug("Error: reading rootdir block\n");
- goto exit;
- }
-
- dentptr = (dir_entry *)dir_ptr;
- }
-
- for (i = 0; i < DIRENTSPERBLOCK; i++) {
- char s_name[14], l_name[VFAT_MAXLEN_BYTES];
- __u8 csum;
-
- l_name[0] = '\0';
- if (dentptr->name[0] == DELETED_FLAG) {
- dentptr++;
- continue;
- }
-
- if (vfat_enabled)
- csum = mkcksum(dentptr->name, dentptr->ext);
-
- if (dentptr->attr & ATTR_VOLUME) {
- if (vfat_enabled &&
- (dentptr->attr & ATTR_VFAT) == ATTR_VFAT &&
- (dentptr->name[0] & LAST_LONG_ENTRY_MASK)) {
- prevcksum =
- ((dir_slot *)dentptr)->alias_checksum;
-
- get_vfatname(mydata,
- root_cluster,
- dir_ptr,
- dentptr, l_name);
-
- if (dols == LS_ROOT) {
- char dirc;
- int doit = 0;
- int isdir =
- (dentptr->attr & ATTR_DIR);
-
- if (isdir) {
- dirs++;
- dirc = '/';
- doit = 1;
- } else {
- dirc = ' ';
- if (l_name[0] != 0) {
- files++;
- doit = 1;
- }
- }
- if (doit) {
- if (dirc == ' ') {
- printf(" %8u %s%c\n",
- FAT2CPU32(dentptr->size),
- l_name,
- dirc);
- } else {
- printf(" %s%c\n",
- l_name,
- dirc);
- }
- }
- dentptr++;
- continue;
- }
- debug("Rootvfatname: |%s|\n",
- l_name);
- } else {
- /* Volume label or VFAT entry */
- dentptr++;
- continue;
- }
- } else if (dentptr->name[0] == 0) {
- debug("RootDentname == NULL - %d\n", i);
- if (dols == LS_ROOT) {
- printf("\n%d file(s), %d dir(s)\n\n",
- files, dirs);
- ret = 0;
- }
- goto exit;
- }
- else if (vfat_enabled &&
- dols == LS_ROOT && csum == prevcksum) {
- prevcksum = 0xffff;
- dentptr++;
- continue;
- }
-
- get_name(dentptr, s_name);
-
- if (dols == LS_ROOT) {
- int isdir = (dentptr->attr & ATTR_DIR);
- char dirc;
- int doit = 0;
-
- if (isdir) {
- dirc = '/';
- if (s_name[0] != 0) {
- dirs++;
- doit = 1;
- }
- } else {
- dirc = ' ';
- if (s_name[0] != 0) {
- files++;
- doit = 1;
- }
- }
- if (doit) {
- if (dirc == ' ') {
- printf(" %8u %s%c\n",
- FAT2CPU32(dentptr->size),
- s_name, dirc);
- } else {
- printf(" %s%c\n",
- s_name, dirc);
- }
- }
- dentptr++;
- continue;
- }
-
- if (strcmp(fnamecopy, s_name)
- && strcmp(fnamecopy, l_name)) {
- debug("RootMismatch: |%s|%s|\n", s_name,
- l_name);
- dentptr++;
- continue;
- }
-
- if (isdir && !(dentptr->attr & ATTR_DIR))
- goto exit;
-
- debug("RootName: %s", s_name);
- debug(", start: 0x%x", START(dentptr));
- debug(", size: 0x%x %s\n",
- FAT2CPU32(dentptr->size),
- isdir ? "(DIR)" : "");
-
- goto rootdir_done; /* We got a match */
- }
- debug("END LOOP: buffer_blk_cnt=%d clust_size=%d\n", buffer_blk_cnt,
- mydata->clust_size);
-
- /*
- * On FAT32 we must fetch the FAT entries for the next
- * root directory clusters when a cluster has been
- * completely processed.
- */
- ++buffer_blk_cnt;
- int rootdir_end = 0;
- if (mydata->fatsize == 32) {
- if (buffer_blk_cnt == mydata->clust_size) {
- int nxtsect = 0;
- int nxt_clust = 0;
-
- nxt_clust = get_fatent(mydata, root_cluster);
- rootdir_end = CHECK_CLUST(nxt_clust, 32);
-
- nxtsect = mydata->data_begin +
- (nxt_clust * mydata->clust_size);
-
- root_cluster = nxt_clust;
-
- cursect = nxtsect;
- buffer_blk_cnt = 0;
- }
- } else {
- if (buffer_blk_cnt == PREFETCH_BLOCKS)
- buffer_blk_cnt = 0;
-
- rootdir_end = (++cursect - mydata->rootdir_sect >=
- rootdir_size);
- }
-
- /* If end of rootdir reached */
- if (rootdir_end) {
- if (dols == LS_ROOT) {
- printf("\n%d file(s), %d dir(s)\n\n",
- files, dirs);
- *size = 0;
- }
- goto exit;
- }
- }
-rootdir_done:
-
- firsttime = 1;
-
- while (isdir) {
- int startsect = mydata->data_begin
- + START(dentptr) * mydata->clust_size;
- dir_entry dent;
- char *nextname = NULL;
-
- dent = *dentptr;
- dentptr = &dent;
-
- idx = dirdelim(subname);
-
- if (idx >= 0) {
- subname[idx] = '\0';
- nextname = subname + idx + 1;
- /* Handle multiple delimiters */
- while (ISDIRDELIM(*nextname))
- nextname++;
- if (dols && *nextname == '\0')
- firsttime = 0;
- } else {
- if (dols && firsttime) {
- firsttime = 0;
- } else {
- isdir = 0;
- }
- }
-
- if (get_dentfromdir(mydata, startsect, subname, dentptr,
- isdir ? 0 : dols) == NULL) {
- if (dols && !isdir)
- *size = 0;
- goto exit;
- }
-
- if (isdir && !(dentptr->attr & ATTR_DIR))
- goto exit;
-
- /*
- * If we are looking for a directory, and found a directory
- * type entry, and the entry is for the root directory (as
- * denoted by a cluster number of 0), jump back to the start
- * of the function, since at least on FAT12/16, the root dir
- * lives in a hard-coded location and needs special handling
- * to parse, rather than simply following the cluster linked
- * list in the FAT, like other directories.
- */
- if (isdir && (dentptr->attr & ATTR_DIR) && !START(dentptr)) {
- /*
- * Modify the filename to remove the prefix that gets
- * back to the root directory, so the initial root dir
- * parsing code can continue from where we are without
- * confusion.
- */
- strcpy(fnamecopy, nextname ?: "");
- /*
- * Set up state the same way as the function does when
- * first started. This is required for the root dir
- * parsing code operates in its expected environment.
- */
- subname = "";
- cursect = mydata->rootdir_sect;
- isdir = 0;
- goto root_reparse;
- }
-
- if (idx >= 0)
- subname = nextname;
- }
-
- if (dogetsize) {
- *size = FAT2CPU32(dentptr->size);
- ret = 0;
- } else {
- ret = get_contents(mydata, dentptr, pos, buffer, maxsize, size);
- }
- debug("Size: %u, got: %llu\n", FAT2CPU32(dentptr->size), *size);
-
-exit:
- free(mydata->fatbuf);
- return ret;
-}
-
/*
* Directory iterator, to simplify filesystem traversal
@@ -1595,12 +966,6 @@ static int fat_itr_resolve(fat_itr *itr, const char *path, unsigned type)
return -ENOENT;
}
-int do_fat_read(const char *filename, void *buffer, loff_t maxsize, int dols,
- loff_t *actread)
-{
- return do_fat_read_at(filename, 0, buffer, maxsize, dols, 0, actread);
-}
-
int file_fat_detectfs(void)
{
boot_sector bs;
@@ -1665,31 +1030,96 @@ int file_fat_detectfs(void)
int file_fat_ls(const char *dir)
{
- loff_t size;
+ fsdata fsdata;
+ fat_itr itrblock, *itr = &itrblock;
+ int files = 0, dirs = 0;
+ int ret;
+
+ ret = fat_itr_root(itr, &fsdata);
+ if (ret)
+ return ret;
+
+ ret = fat_itr_resolve(itr, dir, TYPE_DIR);
+ if (ret)
+ return ret;
+
+ while (fat_itr_next(itr)) {
+ if (fat_itr_isdir(itr)) {
+ printf(" %s/\n", itr->name);
+ dirs++;
+ } else {
+ printf(" %8u %s\n",
+ FAT2CPU32(itr->dent->size),
+ itr->name);
+ files++;
+ }
+ }
- return do_fat_read(dir, NULL, 0, LS_YES, &size);
+ printf("\n%d file(s), %d dir(s)\n\n", files, dirs);
+
+ return 0;
}
int fat_exists(const char *filename)
{
+ fsdata fsdata;
+ fat_itr itrblock, *itr = &itrblock;
int ret;
- loff_t size;
- ret = do_fat_read_at(filename, 0, NULL, 0, LS_NO, 1, &size);
+ ret = fat_itr_root(itr, &fsdata);
+ if (ret)
+ return 0;
+
+ ret = fat_itr_resolve(itr, filename, TYPE_ANY);
return ret == 0;
}
int fat_size(const char *filename, loff_t *size)
{
- return do_fat_read_at(filename, 0, NULL, 0, LS_NO, 1, size);
+ fsdata fsdata;
+ fat_itr itrblock, *itr = &itrblock;
+ int ret;
+
+ ret = fat_itr_root(itr, &fsdata);
+ if (ret)
+ return ret;
+
+ ret = fat_itr_resolve(itr, filename, TYPE_FILE);
+ if (ret) {
+ /*
+ * Directories don't have size, but fs_size() is not
+ * expected to fail if passed a directory path:
+ */
+ fat_itr_root(itr, &fsdata);
+ if (!fat_itr_resolve(itr, filename, TYPE_DIR)) {
+ *size = 0;
+ return 0;
+ }
+ return ret;
+ }
+
+ *size = FAT2CPU32(itr->dent->size);
+
+ return 0;
}
int file_fat_read_at(const char *filename, loff_t pos, void *buffer,
loff_t maxsize, loff_t *actread)
{
+ fsdata fsdata;
+ fat_itr itrblock, *itr = &itrblock;
+ int ret;
+
+ ret = fat_itr_root(itr, &fsdata);
+ if (ret)
+ return ret;
+
+ ret = fat_itr_resolve(itr, filename, TYPE_FILE);
+ if (ret)
+ return ret;
+
printf("reading %s\n", filename);
- return do_fat_read_at(filename, pos, buffer, maxsize, LS_NO, 0,
- actread);
+ return get_contents(&fsdata, itr->dent, pos, buffer, maxsize, actread);
}
int file_fat_read(const char *filename, void *buffer, int maxsize)
diff --git a/include/fat.h b/include/fat.h
index 21bb6666cf..18d8981c48 100644
--- a/include/fat.h
+++ b/include/fat.h
@@ -58,12 +58,6 @@
*/
#define LAST_LONG_ENTRY_MASK 0x40
-/* Flags telling whether we should read a file or list a directory */
-#define LS_NO 0
-#define LS_YES 1
-#define LS_DIR 1
-#define LS_ROOT 2
-
#define ISDIRDELIM(c) ((c) == '/' || (c) == '\\')
#define FSTYPE_NONE (-1)
--
2.13.5
^ permalink raw reply related [flat|nested] 46+ messages in thread* [U-Boot] [PATCH v2 04/21] efi: add some more device path structures
2017-09-10 11:21 [U-Boot] [PATCH v2 00/21] efi_loader: enough UEFI for standard distro boot Rob Clark
` (5 preceding siblings ...)
2017-09-10 11:21 ` [U-Boot] [PATCH v3 3/9] fat/fs: convert to directory iterators Rob Clark
@ 2017-09-10 11:21 ` Rob Clark
2017-09-12 12:30 ` Simon Glass
2017-09-10 11:21 ` [U-Boot] [PATCH v3 4/9] fs: add fs_readdir() Rob Clark
` (23 subsequent siblings)
30 siblings, 1 reply; 46+ messages in thread
From: Rob Clark @ 2017-09-10 11:21 UTC (permalink / raw)
To: u-boot
From: Peter Jones <pjones@redhat.com>
Signed-off-by: Peter Jones <pjones@redhat.com>
Signed-off-by: Rob Clark <robdclark@gmail.com>
---
include/efi_api.h | 54 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 54 insertions(+)
diff --git a/include/efi_api.h b/include/efi_api.h
index 175341348e..b761cf4822 100644
--- a/include/efi_api.h
+++ b/include/efi_api.h
@@ -290,8 +290,38 @@ struct efi_mac_addr {
u8 addr[32];
} __packed;
+#define DEVICE_PATH_TYPE_HARDWARE_DEVICE 0x01
+# define DEVICE_PATH_SUB_TYPE_VENDOR 0x04
+
+struct efi_device_path_vendor {
+ struct efi_device_path dp;
+ efi_guid_t guid;
+ u8 vendor_data[];
+} __packed;
+
+#define DEVICE_PATH_TYPE_ACPI_DEVICE 0x02
+# define DEVICE_PATH_SUB_TYPE_ACPI_DEVICE 0x01
+
+#define EFI_PNP_ID(ID) (u32)(((ID) << 16) | 0x41D0)
+#define EISA_PNP_ID(ID) EFI_PNP_ID(ID)
+
+struct efi_device_path_acpi_path {
+ struct efi_device_path dp;
+ u32 hid;
+ u32 uid;
+} __packed;
+
#define DEVICE_PATH_TYPE_MESSAGING_DEVICE 0x03
+# define DEVICE_PATH_SUB_TYPE_MSG_USB 0x05
# define DEVICE_PATH_SUB_TYPE_MSG_MAC_ADDR 0x0b
+# define DEVICE_PATH_SUB_TYPE_MSG_SD 0x1a
+# define DEVICE_PATH_SUB_TYPE_MSG_MMC 0x1d
+
+struct efi_device_path_usb {
+ struct efi_device_path dp;
+ u8 parent_port_number;
+ u8 usb_interface;
+} __packed;
struct efi_device_path_mac_addr {
struct efi_device_path dp;
@@ -299,9 +329,33 @@ struct efi_device_path_mac_addr {
u8 if_type;
} __packed;
+struct efi_device_path_sd_mmc_path {
+ struct efi_device_path dp;
+ u8 slot_number;
+} __packed;
+
#define DEVICE_PATH_TYPE_MEDIA_DEVICE 0x04
+# define DEVICE_PATH_SUB_TYPE_HARD_DRIVE_PATH 0x01
+# define DEVICE_PATH_SUB_TYPE_CDROM_PATH 0x02
# define DEVICE_PATH_SUB_TYPE_FILE_PATH 0x04
+struct efi_device_path_hard_drive_path {
+ struct efi_device_path dp;
+ u32 partition_number;
+ u64 partition_start;
+ u64 partition_end;
+ u8 partition_signature[16];
+ u8 partmap_type;
+ u8 signature_type;
+} __packed;
+
+struct efi_device_path_cdrom_path {
+ struct efi_device_path dp;
+ u32 boot_entry;
+ u64 partition_start;
+ u64 partition_end;
+} __packed;
+
struct efi_device_path_file_path {
struct efi_device_path dp;
u16 str[32];
--
2.13.5
^ permalink raw reply related [flat|nested] 46+ messages in thread* [U-Boot] [PATCH v3 4/9] fs: add fs_readdir()
2017-09-10 11:21 [U-Boot] [PATCH v2 00/21] efi_loader: enough UEFI for standard distro boot Rob Clark
` (6 preceding siblings ...)
2017-09-10 11:21 ` [U-Boot] [PATCH v2 04/21] efi: add some more device path structures Rob Clark
@ 2017-09-10 11:21 ` Rob Clark
2017-09-10 11:21 ` [U-Boot] [PATCH v2 05/21] efi_loader: add device-path utils Rob Clark
` (22 subsequent siblings)
30 siblings, 0 replies; 46+ messages in thread
From: Rob Clark @ 2017-09-10 11:21 UTC (permalink / raw)
To: u-boot
[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain; charset="windows-1254", Size: 10183 bytes --]
Needed to support efi file protocol. The fallback.efi loader wants
to be able to read the contents of the /EFI directory to find an OS
to boot.
Modelled after POSIX opendir()/readdir()/closedir(). Unlike the other
fs APIs, this is stateful (ie. state is held in the FS_DIR "directory
stream"), to avoid re-traversing of the directory structure at each
step. The directory stream must be released with closedir() when it
is no longer needed.
Signed-off-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Łukasz Majewski <lukma@denx.de>
---
disk/part.c | 31 ++++++++++-------
fs/fs.c | 104 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
include/fs.h | 67 +++++++++++++++++++++++++++++++++++++
include/part.h | 9 +++++
4 files changed, 199 insertions(+), 12 deletions(-)
diff --git a/disk/part.c b/disk/part.c
index c67fdacc79..aa9183d696 100644
--- a/disk/part.c
+++ b/disk/part.c
@@ -331,6 +331,24 @@ int part_get_info(struct blk_desc *dev_desc, int part,
return -1;
}
+int part_get_info_whole_disk(struct blk_desc *dev_desc, disk_partition_t *info)
+{
+ info->start = 0;
+ info->size = dev_desc->lba;
+ info->blksz = dev_desc->blksz;
+ info->bootable = 0;
+ strcpy((char *)info->type, BOOT_PART_TYPE);
+ strcpy((char *)info->name, "Whole Disk");
+#if CONFIG_IS_ENABLED(PARTITION_UUIDS)
+ info->uuid[0] = 0;
+#endif
+#ifdef CONFIG_PARTITION_TYPE_GUID
+ info->type_guid[0] = 0;
+#endif
+
+ return 0;
+}
+
int blk_get_device_by_str(const char *ifname, const char *dev_hwpart_str,
struct blk_desc **dev_desc)
{
@@ -523,18 +541,7 @@ int blk_get_device_part_str(const char *ifname, const char *dev_part_str,
(*dev_desc)->log2blksz = LOG2((*dev_desc)->blksz);
- info->start = 0;
- info->size = (*dev_desc)->lba;
- info->blksz = (*dev_desc)->blksz;
- info->bootable = 0;
- strcpy((char *)info->type, BOOT_PART_TYPE);
- strcpy((char *)info->name, "Whole Disk");
-#if CONFIG_IS_ENABLED(PARTITION_UUIDS)
- info->uuid[0] = 0;
-#endif
-#ifdef CONFIG_PARTITION_TYPE_GUID
- info->type_guid[0] = 0;
-#endif
+ part_get_info_whole_disk(*dev_desc, info);
ret = 0;
goto cleanup;
diff --git a/fs/fs.c b/fs/fs.c
index 13cd3626c6..fc0c953fcb 100644
--- a/fs/fs.c
+++ b/fs/fs.c
@@ -21,6 +21,7 @@
DECLARE_GLOBAL_DATA_PTR;
static struct blk_desc *fs_dev_desc;
+static int fs_dev_part;
static disk_partition_t fs_partition;
static int fs_type = FS_TYPE_ANY;
@@ -69,6 +70,12 @@ static inline int fs_uuid_unsupported(char *uuid_str)
return -1;
}
+static inline int fs_opendir_unsupported(const char *filename,
+ struct fs_dir_stream **dirs)
+{
+ return -EACCES;
+}
+
struct fstype_info {
int fstype;
char *name;
@@ -92,6 +99,20 @@ struct fstype_info {
loff_t len, loff_t *actwrite);
void (*close)(void);
int (*uuid)(char *uuid_str);
+ /*
+ * Open a directory stream. On success return 0 and directory
+ * stream pointer via 'dirsp'. On error, return -errno. See
+ * fs_opendir().
+ */
+ int (*opendir)(const char *filename, struct fs_dir_stream **dirsp);
+ /*
+ * Read next entry from directory stream. On success return 0
+ * and directory entry pointer via 'dentp'. On error return
+ * -errno. See fs_readdir().
+ */
+ int (*readdir)(struct fs_dir_stream *dirs, struct fs_dirent **dentp);
+ /* see fs_closedir() */
+ void (*closedir)(struct fs_dir_stream *dirs);
};
static struct fstype_info fstypes[] = {
@@ -112,6 +133,7 @@ static struct fstype_info fstypes[] = {
.write = fs_write_unsupported,
#endif
.uuid = fs_uuid_unsupported,
+ .opendir = fs_opendir_unsupported,
},
#endif
#ifdef CONFIG_FS_EXT4
@@ -131,6 +153,7 @@ static struct fstype_info fstypes[] = {
.write = fs_write_unsupported,
#endif
.uuid = ext4fs_uuid,
+ .opendir = fs_opendir_unsupported,
},
#endif
#ifdef CONFIG_SANDBOX
@@ -146,6 +169,7 @@ static struct fstype_info fstypes[] = {
.read = fs_read_sandbox,
.write = fs_write_sandbox,
.uuid = fs_uuid_unsupported,
+ .opendir = fs_opendir_unsupported,
},
#endif
#ifdef CONFIG_CMD_UBIFS
@@ -161,6 +185,7 @@ static struct fstype_info fstypes[] = {
.read = ubifs_read,
.write = fs_write_unsupported,
.uuid = fs_uuid_unsupported,
+ .opendir = fs_opendir_unsupported,
},
#endif
{
@@ -175,6 +200,7 @@ static struct fstype_info fstypes[] = {
.read = fs_read_unsupported,
.write = fs_write_unsupported,
.uuid = fs_uuid_unsupported,
+ .opendir = fs_opendir_unsupported,
},
};
@@ -228,6 +254,31 @@ int fs_set_blk_dev(const char *ifname, const char *dev_part_str, int fstype)
if (!info->probe(fs_dev_desc, &fs_partition)) {
fs_type = info->fstype;
+ fs_dev_part = part;
+ return 0;
+ }
+ }
+
+ return -1;
+}
+
+/* set current blk device w/ blk_desc + partition # */
+int fs_set_blk_dev_with_part(struct blk_desc *desc, int part)
+{
+ struct fstype_info *info;
+ int ret, i;
+
+ if (part >= 1)
+ ret = part_get_info(desc, part, &fs_partition);
+ else
+ ret = part_get_info_whole_disk(desc, &fs_partition);
+ if (ret)
+ return ret;
+ fs_dev_desc = desc;
+
+ for (i = 0, info = fstypes; i < ARRAY_SIZE(fstypes); i++, info++) {
+ if (!info->probe(fs_dev_desc, &fs_partition)) {
+ fs_type = info->fstype;
return 0;
}
}
@@ -334,6 +385,59 @@ int fs_write(const char *filename, ulong addr, loff_t offset, loff_t len,
return ret;
}
+struct fs_dir_stream *fs_opendir(const char *filename)
+{
+ struct fstype_info *info = fs_get_info(fs_type);
+ struct fs_dir_stream *dirs = NULL;
+ int ret;
+
+ ret = info->opendir(filename, &dirs);
+ fs_close();
+ if (ret) {
+ errno = -ret;
+ return NULL;
+ }
+
+ dirs->desc = fs_dev_desc;
+ dirs->part = fs_dev_part;
+
+ return dirs;
+}
+
+struct fs_dirent *fs_readdir(struct fs_dir_stream *dirs)
+{
+ struct fstype_info *info;
+ struct fs_dirent *dirent;
+ int ret;
+
+ fs_set_blk_dev_with_part(dirs->desc, dirs->part);
+ info = fs_get_info(fs_type);
+
+ ret = info->readdir(dirs, &dirent);
+ fs_close();
+ if (ret) {
+ errno = -ret;
+ return NULL;
+ }
+
+ return dirent;
+}
+
+void fs_closedir(struct fs_dir_stream *dirs)
+{
+ struct fstype_info *info;
+
+ if (!dirs)
+ return;
+
+ fs_set_blk_dev_with_part(dirs->desc, dirs->part);
+ info = fs_get_info(fs_type);
+
+ info->closedir(dirs);
+ fs_close();
+}
+
+
int do_size(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
int fstype)
{
diff --git a/include/fs.h b/include/fs.h
index 2f2aca8378..0869ad6e80 100644
--- a/include/fs.h
+++ b/include/fs.h
@@ -27,6 +27,17 @@
int fs_set_blk_dev(const char *ifname, const char *dev_part_str, int fstype);
/*
+ * fs_set_blk_dev_with_part - Set current block device + partition
+ *
+ * Similar to fs_set_blk_dev(), but useful for cases where you already
+ * know the blk_desc and part number.
+ *
+ * Returns 0 on success.
+ * Returns non-zero if invalid partition or error accessing the disk.
+ */
+int fs_set_blk_dev_with_part(struct blk_desc *desc, int part);
+
+/*
* Print the list of files on the partition previously set by fs_set_blk_dev(),
* in directory "dirname".
*
@@ -79,6 +90,62 @@ int fs_write(const char *filename, ulong addr, loff_t offset, loff_t len,
loff_t *actwrite);
/*
+ * Directory entry types, matches the subset of DT_x in posix readdir()
+ * which apply to u-boot.
+ */
+#define FS_DT_DIR 4 /* directory */
+#define FS_DT_REG 8 /* regular file */
+#define FS_DT_LNK 10 /* symbolic link */
+
+/*
+ * A directory entry, returned by fs_readdir(). Returns information
+ * about the file/directory at the current directory entry position.
+ */
+struct fs_dirent {
+ unsigned type; /* one of FS_DT_x (not a mask) */
+ loff_t size; /* size in bytes */
+ char name[256];
+};
+
+/* Note: fs_dir_stream should be treated as opaque to the user of fs layer */
+struct fs_dir_stream {
+ /* private to fs. layer: */
+ struct blk_desc *desc;
+ int part;
+};
+
+/*
+ * fs_opendir - Open a directory
+ *
+ * @filename: the path to directory to open
+ * @return a pointer to the directory stream or NULL on error and errno
+ * set appropriately
+ */
+struct fs_dir_stream *fs_opendir(const char *filename);
+
+/*
+ * fs_readdir - Read the next directory entry in the directory stream.
+ *
+ * Works in an analogous way to posix readdir(). The previously returned
+ * directory entry is no longer valid after calling fs_readdir() again.
+ * After fs_closedir() is called, the returned directory entry is no
+ * longer valid.
+ *
+ * @dirs: the directory stream
+ * @return the next directory entry (only valid until next fs_readdir() or
+ * fs_closedir() call, do not attempt to free()) or NULL if the end of
+ * the directory is reached.
+ */
+struct fs_dirent *fs_readdir(struct fs_dir_stream *dirs);
+
+/*
+ * fs_closedir - close a directory stream
+ *
+ * @dirs: the directory stream
+ */
+void fs_closedir(struct fs_dir_stream *dirs);
+
+/*
* Common implementation for various filesystem commands, optionally limited
* to a specific filesystem type via the fstype parameter.
*/
diff --git a/include/part.h b/include/part.h
index 0d5c99836b..86117a7ce5 100644
--- a/include/part.h
+++ b/include/part.h
@@ -98,6 +98,12 @@ int host_get_dev_err(int dev, struct blk_desc **blk_devp);
/* disk/part.c */
int part_get_info(struct blk_desc *dev_desc, int part, disk_partition_t *info);
+/**
+ * part_get_info_whole_disk() - get partition info for the special case of
+ * a partition occupying the entire disk.
+ */
+int part_get_info_whole_disk(struct blk_desc *dev_desc, disk_partition_t *info);
+
void part_print(struct blk_desc *dev_desc);
void part_init(struct blk_desc *dev_desc);
void dev_print(struct blk_desc *dev_desc);
@@ -203,6 +209,9 @@ static inline struct blk_desc *mg_disk_get_dev(int dev) { return NULL; }
static inline int part_get_info(struct blk_desc *dev_desc, int part,
disk_partition_t *info) { return -1; }
+static inline int part_get_info_whole_disk(struct blk_desc *dev_desc,
+ disk_partition_t *info)
+{ return -1; }
static inline void part_print(struct blk_desc *dev_desc) {}
static inline void part_init(struct blk_desc *dev_desc) {}
static inline void dev_print(struct blk_desc *dev_desc) {}
--
2.13.5
^ permalink raw reply related [flat|nested] 46+ messages in thread* [U-Boot] [PATCH v2 05/21] efi_loader: add device-path utils
2017-09-10 11:21 [U-Boot] [PATCH v2 00/21] efi_loader: enough UEFI for standard distro boot Rob Clark
` (7 preceding siblings ...)
2017-09-10 11:21 ` [U-Boot] [PATCH v3 4/9] fs: add fs_readdir() Rob Clark
@ 2017-09-10 11:21 ` Rob Clark
2017-09-12 12:30 ` Simon Glass
2017-09-10 11:21 ` [U-Boot] [PATCH v3 5/9] fs/fat: implement opendir/readdir/closedir Rob Clark
` (21 subsequent siblings)
30 siblings, 1 reply; 46+ messages in thread
From: Rob Clark @ 2017-09-10 11:21 UTC (permalink / raw)
To: u-boot
Helpers to construct device-paths from devices, partitions, files, and
for parsing and manipulating device-paths.
For non-legacy devices, this will use u-boot's device-model to construct
device-paths which include bus hierarchy to construct device-paths. For
legacy devices we still fake it, but slightly more convincingly.
Signed-off-by: Rob Clark <robdclark@gmail.com>
---
include/efi_api.h | 10 +
include/efi_loader.h | 26 ++
lib/efi_loader/Makefile | 2 +-
lib/efi_loader/efi_boottime.c | 13 +-
lib/efi_loader/efi_device_path.c | 563 +++++++++++++++++++++++++++++++++++++++
5 files changed, 611 insertions(+), 3 deletions(-)
create mode 100644 lib/efi_loader/efi_device_path.c
diff --git a/include/efi_api.h b/include/efi_api.h
index b761cf4822..4e27c82129 100644
--- a/include/efi_api.h
+++ b/include/efi_api.h
@@ -314,6 +314,7 @@ struct efi_device_path_acpi_path {
#define DEVICE_PATH_TYPE_MESSAGING_DEVICE 0x03
# define DEVICE_PATH_SUB_TYPE_MSG_USB 0x05
# define DEVICE_PATH_SUB_TYPE_MSG_MAC_ADDR 0x0b
+# define DEVICE_PATH_SUB_TYPE_MSG_USB_CLASS 0x0f
# define DEVICE_PATH_SUB_TYPE_MSG_SD 0x1a
# define DEVICE_PATH_SUB_TYPE_MSG_MMC 0x1d
@@ -329,6 +330,15 @@ struct efi_device_path_mac_addr {
u8 if_type;
} __packed;
+struct efi_device_path_usb_class {
+ struct efi_device_path dp;
+ u16 vendor_id;
+ u16 product_id;
+ u8 device_class;
+ u8 device_subclass;
+ u8 device_protocol;
+} __packed;
+
struct efi_device_path_sd_mmc_path {
struct efi_device_path dp;
u8 slot_number;
diff --git a/include/efi_loader.h b/include/efi_loader.h
index 1179234f68..d052b03ab7 100644
--- a/include/efi_loader.h
+++ b/include/efi_loader.h
@@ -197,6 +197,32 @@ extern void *efi_bounce_buffer;
#define EFI_LOADER_BOUNCE_BUFFER_SIZE (64 * 1024 * 1024)
#endif
+
+struct efi_device_path *efi_dp_next(const struct efi_device_path *dp);
+int efi_dp_match(struct efi_device_path *a, struct efi_device_path *b);
+struct efi_object *efi_dp_find_obj(struct efi_device_path *dp,
+ struct efi_device_path **rem);
+unsigned efi_dp_size(const struct efi_device_path *dp);
+struct efi_device_path *efi_dp_dup(const struct efi_device_path *dp);
+struct efi_device_path *efi_dp_append(const struct efi_device_path *dp1,
+ const struct efi_device_path *dp2);
+struct efi_device_path *efi_dp_append_node(const struct efi_device_path *dp,
+ const struct efi_device_path *node);
+
+
+struct efi_device_path *efi_dp_from_dev(struct udevice *dev);
+struct efi_device_path *efi_dp_from_part(struct blk_desc *desc, int part);
+struct efi_device_path *efi_dp_from_file(struct blk_desc *desc, int part,
+ const char *path);
+struct efi_device_path *efi_dp_from_eth(void);
+void efi_dp_split_file_path(struct efi_device_path *full_path,
+ struct efi_device_path **device_path,
+ struct efi_device_path **file_path);
+
+#define EFI_DP_TYPE(_dp, _type, _subtype) \
+ (((_dp)->type == DEVICE_PATH_TYPE_##_type) && \
+ ((_dp)->sub_type == DEVICE_PATH_SUB_TYPE_##_subtype))
+
/* Convert strings from normal C strings to uEFI strings */
static inline void ascii2unicode(u16 *unicode, const char *ascii)
{
diff --git a/lib/efi_loader/Makefile b/lib/efi_loader/Makefile
index 30bf343a36..f35e5ce8a8 100644
--- a/lib/efi_loader/Makefile
+++ b/lib/efi_loader/Makefile
@@ -15,7 +15,7 @@ always := $(efiprogs-y)
obj-$(CONFIG_CMD_BOOTEFI_HELLO) += helloworld_efi.o
obj-y += efi_image_loader.o efi_boottime.o efi_runtime.o efi_console.o
-obj-y += efi_memory.o efi_device_path_to_text.o
+obj-y += efi_memory.o efi_device_path_to_text.o efi_device_path.o
obj-$(CONFIG_LCD) += efi_gop.o
obj-$(CONFIG_DM_VIDEO) += efi_gop.o
obj-$(CONFIG_PARTITIONS) += efi_disk.o
diff --git a/lib/efi_loader/efi_boottime.c b/lib/efi_loader/efi_boottime.c
index 43f32385fa..b962b62a97 100644
--- a/lib/efi_loader/efi_boottime.c
+++ b/lib/efi_loader/efi_boottime.c
@@ -665,8 +665,17 @@ static efi_status_t EFIAPI efi_locate_device_path(efi_guid_t *protocol,
struct efi_device_path **device_path,
efi_handle_t *device)
{
- EFI_ENTRY("%p, %p, %p", protocol, device_path, device);
- return EFI_EXIT(EFI_NOT_FOUND);
+ struct efi_object *efiobj;
+
+ EFI_ENTRY("%pUl, %p, %p", protocol, device_path, device);
+
+ efiobj = efi_dp_find_obj(*device_path, device_path);
+ if (!efiobj)
+ return EFI_EXIT(EFI_NOT_FOUND);
+
+ *device = efiobj->handle;
+
+ return EFI_EXIT(EFI_SUCCESS);
}
/* Collapses configuration table entries, removing index i */
diff --git a/lib/efi_loader/efi_device_path.c b/lib/efi_loader/efi_device_path.c
new file mode 100644
index 0000000000..5d5c3b3464
--- /dev/null
+++ b/lib/efi_loader/efi_device_path.c
@@ -0,0 +1,563 @@
+/*
+ * EFI device path from u-boot device-model mapping
+ *
+ * (C) Copyright 2017 Rob Clark
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <blk.h>
+#include <dm.h>
+#include <usb.h>
+#include <mmc.h>
+#include <efi_loader.h>
+#include <inttypes.h>
+#include <part.h>
+
+/* template END node: */
+static const struct efi_device_path END = {
+ .type = DEVICE_PATH_TYPE_END,
+ .sub_type = DEVICE_PATH_SUB_TYPE_END,
+ .length = sizeof(END),
+};
+
+#define U_BOOT_GUID \
+ EFI_GUID(0xe61d73b9, 0xa384, 0x4acc, \
+ 0xae, 0xab, 0x82, 0xe8, 0x28, 0xf3, 0x62, 0x8b)
+
+/* template ROOT node: */
+static const struct efi_device_path_vendor ROOT = {
+ .dp = {
+ .type = DEVICE_PATH_TYPE_HARDWARE_DEVICE,
+ .sub_type = DEVICE_PATH_SUB_TYPE_VENDOR,
+ .length = sizeof(ROOT),
+ },
+ .guid = U_BOOT_GUID,
+};
+
+static void *dp_alloc(size_t sz)
+{
+ void *buf;
+
+ if (efi_allocate_pool(EFI_ALLOCATE_ANY_PAGES, sz, &buf) != EFI_SUCCESS)
+ return NULL;
+
+ return buf;
+}
+
+/*
+ * Iterate to next block in device-path, terminating (returning NULL)
+ * at /End* node.
+ */
+struct efi_device_path *efi_dp_next(const struct efi_device_path *dp)
+{
+ if (dp == NULL)
+ return NULL;
+ if (dp->type == DEVICE_PATH_TYPE_END)
+ return NULL;
+ dp = ((void *)dp) + dp->length;
+ if (dp->type == DEVICE_PATH_TYPE_END)
+ return NULL;
+ return (struct efi_device_path *)dp;
+}
+
+/*
+ * Compare two device-paths, stopping when the shorter of the two hits
+ * an End* node. This is useful to, for example, compare a device-path
+ * representing a device with one representing a file on the device, or
+ * a device with a parent device.
+ */
+int efi_dp_match(struct efi_device_path *a, struct efi_device_path *b)
+{
+ while (1) {
+ int ret;
+
+ ret = memcmp(&a->length, &b->length, sizeof(a->length));
+ if (ret)
+ return ret;
+
+ ret = memcmp(a, b, a->length);
+ if (ret)
+ return ret;
+
+ a = efi_dp_next(a);
+ b = efi_dp_next(b);
+
+ if (!a || !b)
+ return 0;
+ }
+}
+
+
+/*
+ * See UEFI spec (section 3.1.2, about short-form device-paths..
+ * tl;dr: we can have a device-path that starts with a USB WWID
+ * or USB Class node, and a few other cases which don't encode
+ * the full device path with bus hierarchy:
+ *
+ * - MESSAGING:USB_WWID
+ * - MESSAGING:USB_CLASS
+ * - MEDIA:FILE_PATH
+ * - MEDIA:HARD_DRIVE
+ * - MESSAGING:URI
+ */
+static struct efi_device_path *shorten_path(struct efi_device_path *dp)
+{
+ while (dp) {
+ /*
+ * TODO: Add MESSAGING:USB_WWID and MESSAGING:URI..
+ * in practice fallback.efi just uses MEDIA:HARD_DRIVE
+ * so not sure when we would see these other cases.
+ */
+ if (EFI_DP_TYPE(dp, MESSAGING_DEVICE, MSG_USB_CLASS) ||
+ EFI_DP_TYPE(dp, MEDIA_DEVICE, HARD_DRIVE_PATH) ||
+ EFI_DP_TYPE(dp, MEDIA_DEVICE, FILE_PATH))
+ return dp;
+
+ dp = efi_dp_next(dp);
+ }
+
+ return dp;
+}
+
+static struct efi_object *find_obj(struct efi_device_path *dp, bool short_path,
+ struct efi_device_path **rem)
+{
+ struct efi_object *efiobj;
+
+ list_for_each_entry(efiobj, &efi_obj_list, link) {
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(efiobj->protocols); i++) {
+ struct efi_handler *handler = &efiobj->protocols[i];
+ struct efi_device_path *obj_dp;
+
+ if (!handler->guid)
+ break;
+
+ if (guidcmp(handler->guid, &efi_guid_device_path))
+ continue;
+
+ obj_dp = handler->protocol_interface;
+
+ do {
+ if (efi_dp_match(dp, obj_dp) == 0) {
+ if (rem) {
+ *rem = ((void *)dp) +
+ efi_dp_size(obj_dp);
+ }
+ return efiobj;
+ }
+
+ obj_dp = shorten_path(efi_dp_next(obj_dp));
+ } while (short_path && obj_dp);
+ }
+ }
+
+ return NULL;
+}
+
+
+/*
+ * Find an efiobj from device-path, if 'rem' is not NULL, returns the
+ * remaining part of the device path after the matched object.
+ */
+struct efi_object *efi_dp_find_obj(struct efi_device_path *dp,
+ struct efi_device_path **rem)
+{
+ struct efi_object *efiobj;
+
+ efiobj = find_obj(dp, false, rem);
+
+ if (!efiobj)
+ efiobj = find_obj(dp, true, rem);
+
+ return efiobj;
+}
+
+/* return size not including End node: */
+unsigned efi_dp_size(const struct efi_device_path *dp)
+{
+ unsigned sz = 0;
+
+ while (dp) {
+ sz += dp->length;
+ dp = efi_dp_next(dp);
+ }
+
+ return sz;
+}
+
+struct efi_device_path *efi_dp_dup(const struct efi_device_path *dp)
+{
+ struct efi_device_path *ndp;
+ unsigned sz = efi_dp_size(dp) + sizeof(END);
+
+ if (!dp)
+ return NULL;
+
+ ndp = dp_alloc(sz);
+ memcpy(ndp, dp, sz);
+
+ return ndp;
+}
+
+struct efi_device_path *efi_dp_append(const struct efi_device_path *dp1,
+ const struct efi_device_path *dp2)
+{
+ struct efi_device_path *ret;
+
+ if (!dp1) {
+ ret = efi_dp_dup(dp2);
+ } else if (!dp2) {
+ ret = efi_dp_dup(dp1);
+ } else {
+ /* both dp1 and dp2 are non-null */
+ unsigned sz1 = efi_dp_size(dp1);
+ unsigned sz2 = efi_dp_size(dp2);
+ void *p = dp_alloc(sz1 + sz2 + sizeof(END));
+ memcpy(p, dp1, sz1);
+ memcpy(p + sz1, dp2, sz2);
+ memcpy(p + sz1 + sz2, &END, sizeof(END));
+ ret = p;
+ }
+
+ return ret;
+}
+
+struct efi_device_path *efi_dp_append_node(const struct efi_device_path *dp,
+ const struct efi_device_path *node)
+{
+ struct efi_device_path *ret;
+
+ if (!node && !dp) {
+ ret = efi_dp_dup(&END);
+ } else if (!node) {
+ ret = efi_dp_dup(dp);
+ } else if (!dp) {
+ unsigned sz = node->length;
+ void *p = dp_alloc(sz + sizeof(END));
+ memcpy(p, node, sz);
+ memcpy(p + sz, &END, sizeof(END));
+ ret = p;
+ } else {
+ /* both dp and node are non-null */
+ unsigned sz = efi_dp_size(dp);
+ void *p = dp_alloc(sz + node->length + sizeof(END));
+ memcpy(p, dp, sz);
+ memcpy(p + sz, node, node->length);
+ memcpy(p + sz + node->length, &END, sizeof(END));
+ ret = p;
+ }
+
+ return ret;
+}
+
+#ifdef CONFIG_DM
+/* size of device-path not including END node for device and all parents
+ * up to the root device.
+ */
+static unsigned dp_size(struct udevice *dev)
+{
+ if (!dev || !dev->driver)
+ return sizeof(ROOT);
+
+ switch (dev->driver->id) {
+ case UCLASS_ROOT:
+ case UCLASS_SIMPLE_BUS:
+ /* stop traversing parents at this point: */
+ return sizeof(ROOT);
+ case UCLASS_MMC:
+ return dp_size(dev->parent) +
+ sizeof(struct efi_device_path_sd_mmc_path);
+ case UCLASS_MASS_STORAGE:
+ case UCLASS_USB_HUB:
+ return dp_size(dev->parent) +
+ sizeof(struct efi_device_path_usb_class);
+ default:
+ /* just skip over unknown classes: */
+ return dp_size(dev->parent);
+ }
+}
+
+static void *dp_fill(void *buf, struct udevice *dev)
+{
+ if (!dev || !dev->driver)
+ return buf;
+
+ switch (dev->driver->id) {
+ case UCLASS_ROOT:
+ case UCLASS_SIMPLE_BUS: {
+ /* stop traversing parents at this point: */
+ struct efi_device_path_vendor *vdp = buf;
+ *vdp = ROOT;
+ return &vdp[1];
+ }
+#if defined(CONFIG_DM_MMC) && defined(CONFIG_MMC)
+ case UCLASS_MMC: {
+ struct efi_device_path_sd_mmc_path *sddp =
+ dp_fill(buf, dev->parent);
+ struct mmc *mmc = mmc_get_mmc_dev(dev);
+ struct blk_desc *desc = mmc_get_blk_desc(mmc);
+
+ sddp->dp.type = DEVICE_PATH_TYPE_MESSAGING_DEVICE;
+ sddp->dp.sub_type = (desc->if_type == IF_TYPE_MMC) ?
+ DEVICE_PATH_SUB_TYPE_MSG_MMC :
+ DEVICE_PATH_SUB_TYPE_MSG_SD;
+ sddp->dp.length = sizeof(*sddp);
+ sddp->slot_number = dev->seq;
+
+ return &sddp[1];
+ }
+#endif
+ case UCLASS_MASS_STORAGE:
+ case UCLASS_USB_HUB: {
+ struct efi_device_path_usb_class *udp =
+ dp_fill(buf, dev->parent);
+ struct usb_device *udev = dev_get_parent_priv(dev);
+ struct usb_device_descriptor *desc = &udev->descriptor;
+
+ udp->dp.type = DEVICE_PATH_TYPE_MESSAGING_DEVICE;
+ udp->dp.sub_type = DEVICE_PATH_SUB_TYPE_MSG_USB_CLASS;
+ udp->dp.length = sizeof(*udp);
+ udp->vendor_id = desc->idVendor;
+ udp->product_id = desc->idProduct;
+ udp->device_class = desc->bDeviceClass;
+ udp->device_subclass = desc->bDeviceSubClass;
+ udp->device_protocol = desc->bDeviceProtocol;
+
+ return &udp[1];
+ }
+ default:
+ debug("unhandled device class: %s (%u)\n",
+ dev->name, dev->driver->id);
+ return dp_fill(buf, dev->parent);
+ }
+}
+
+/* Construct a device-path from a device: */
+struct efi_device_path *efi_dp_from_dev(struct udevice *dev)
+{
+ void *buf, *start;
+
+ start = buf = dp_alloc(dp_size(dev) + sizeof(END));
+ buf = dp_fill(buf, dev);
+ *((struct efi_device_path *)buf) = END;
+
+ return start;
+}
+#endif
+
+static unsigned dp_part_size(struct blk_desc *desc, int part)
+{
+ unsigned dpsize;
+
+#ifdef CONFIG_BLK
+ dpsize = dp_size(desc->bdev->parent);
+#else
+ dpsize = sizeof(ROOT) + sizeof(struct efi_device_path_usb);
+#endif
+
+ if (part == 0) /* the actual disk, not a partition */
+ return dpsize;
+
+ if (desc->part_type == PART_TYPE_ISO)
+ dpsize += sizeof(struct efi_device_path_cdrom_path);
+ else
+ dpsize += sizeof(struct efi_device_path_hard_drive_path);
+
+ return dpsize;
+}
+
+static void *dp_part_fill(void *buf, struct blk_desc *desc, int part)
+{
+ disk_partition_t info;
+
+#ifdef CONFIG_BLK
+ buf = dp_fill(buf, desc->bdev->parent);
+#else
+ /*
+ * We *could* make a more accurate path, by looking at if_type
+ * and handling all the different cases like we do for non-
+ * legacy (ie CONFIG_BLK=y) case. But most important thing
+ * is just to have a unique device-path for if_type+devnum.
+ * So map things to a fictional USB device:
+ */
+ struct efi_device_path_usb *udp;
+
+ memcpy(buf, &ROOT, sizeof(ROOT));
+ buf += sizeof(ROOT);
+
+ udp = buf;
+ udp->dp.type = DEVICE_PATH_TYPE_MESSAGING_DEVICE;
+ udp->dp.sub_type = DEVICE_PATH_SUB_TYPE_MSG_USB;
+ udp->dp.length = sizeof(*udp);
+ udp->parent_port_number = desc->if_type;
+ udp->usb_interface = desc->devnum;
+ buf = &udp[1];
+#endif
+
+ if (part == 0) /* the actual disk, not a partition */
+ return buf;
+
+ part_get_info(desc, part, &info);
+
+ if (desc->part_type == PART_TYPE_ISO) {
+ struct efi_device_path_cdrom_path *cddp = buf;
+
+ cddp->boot_entry = part - 1;
+ cddp->dp.type = DEVICE_PATH_TYPE_MEDIA_DEVICE;
+ cddp->dp.sub_type = DEVICE_PATH_SUB_TYPE_CDROM_PATH;
+ cddp->dp.length = sizeof(*cddp);
+ cddp->partition_start = info.start;
+ cddp->partition_end = info.size;
+
+ buf = &cddp[1];
+ } else {
+ struct efi_device_path_hard_drive_path *hddp = buf;
+
+ hddp->dp.type = DEVICE_PATH_TYPE_MEDIA_DEVICE;
+ hddp->dp.sub_type = DEVICE_PATH_SUB_TYPE_HARD_DRIVE_PATH;
+ hddp->dp.length = sizeof(*hddp);
+ hddp->partition_number = part - 1;
+ hddp->partition_start = info.start;
+ hddp->partition_end = info.size;
+ if (desc->part_type == PART_TYPE_EFI)
+ hddp->partmap_type = 2;
+ else
+ hddp->partmap_type = 1;
+ hddp->signature_type = desc->sig_type;
+ if (hddp->signature_type != 0)
+ memcpy(hddp->partition_signature, &desc->guid_sig,
+ sizeof(hddp->partition_signature));
+
+ buf = &hddp[1];
+ }
+
+ return buf;
+}
+
+
+/* Construct a device-path from a partition on a blk device: */
+struct efi_device_path *efi_dp_from_part(struct blk_desc *desc, int part)
+{
+ void *buf, *start;
+
+ start = buf = dp_alloc(dp_part_size(desc, part) + sizeof(END));
+
+ buf = dp_part_fill(buf, desc, part);
+
+ *((struct efi_device_path *)buf) = END;
+
+ return start;
+}
+
+/* convert path to an UEFI style path (ie. DOS style backslashes and utf16) */
+static void path_to_uefi(u16 *uefi, const char *path)
+{
+ while (*path) {
+ char c = *(path++);
+ if (c == '/')
+ c = '\\';
+ *(uefi++) = c;
+ }
+ *uefi = '\0';
+}
+
+/*
+ * If desc is NULL, this creates a path with only the file component,
+ * otherwise it creates a full path with both device and file components
+ */
+struct efi_device_path *efi_dp_from_file(struct blk_desc *desc, int part,
+ const char *path)
+{
+ struct efi_device_path_file_path *fp;
+ void *buf, *start;
+ unsigned dpsize = 0, fpsize;
+
+ if (desc)
+ dpsize = dp_part_size(desc, part);
+
+ fpsize = sizeof(struct efi_device_path) + 2 * (strlen(path) + 1);
+ dpsize += fpsize;
+
+ start = buf = dp_alloc(dpsize + sizeof(END));
+
+ if (desc)
+ buf = dp_part_fill(buf, desc, part);
+
+ /* add file-path: */
+ fp = buf;
+ fp->dp.type = DEVICE_PATH_TYPE_MEDIA_DEVICE;
+ fp->dp.sub_type = DEVICE_PATH_SUB_TYPE_FILE_PATH;
+ fp->dp.length = fpsize;
+ path_to_uefi(fp->str, path);
+ buf += fpsize;
+
+ *((struct efi_device_path *)buf) = END;
+
+ return start;
+}
+
+#ifdef CONFIG_NET
+struct efi_device_path *efi_dp_from_eth(void)
+{
+ struct efi_device_path_mac_addr *ndp;
+ void *buf, *start;
+ unsigned dpsize = 0;
+
+ assert(eth_get_dev());
+
+#ifdef CONFIG_DM_ETH
+ dpsize += dp_size(eth_get_dev());
+#else
+ dpsize += sizeof(ROOT);
+#endif
+ dpsize += sizeof(*ndp);
+
+ start = buf = dp_alloc(dpsize + sizeof(END));
+
+#ifdef CONFIG_DM_ETH
+ buf = dp_fill(buf, eth_get_dev());
+#else
+ memcpy(buf, &ROOT, sizeof(ROOT));
+ buf += sizeof(ROOT);
+#endif
+
+ ndp = buf;
+ ndp->dp.type = DEVICE_PATH_TYPE_MESSAGING_DEVICE;
+ ndp->dp.sub_type = DEVICE_PATH_SUB_TYPE_MSG_MAC_ADDR;
+ ndp->dp.length = sizeof(*ndp);
+ memcpy(ndp->mac.addr, eth_get_ethaddr(), ARP_HLEN);
+ buf = &ndp[1];
+
+ *((struct efi_device_path *)buf) = END;
+
+ return start;
+}
+#endif
+
+/*
+ * Helper to split a full device path (containing both device and file
+ * parts) into it's constituent parts.
+ */
+void efi_dp_split_file_path(struct efi_device_path *full_path,
+ struct efi_device_path **device_path,
+ struct efi_device_path **file_path)
+{
+ struct efi_device_path *p, *dp, *fp;
+
+ dp = efi_dp_dup(full_path);
+ p = dp;
+ while (!EFI_DP_TYPE(p, MEDIA_DEVICE, FILE_PATH))
+ p = efi_dp_next(p);
+ fp = efi_dp_dup(p);
+
+ p->type = DEVICE_PATH_TYPE_END;
+ p->sub_type = DEVICE_PATH_SUB_TYPE_END;
+ p->length = sizeof(*p);
+
+ *device_path = dp;
+ *file_path = fp;
+}
--
2.13.5
^ permalink raw reply related [flat|nested] 46+ messages in thread* [U-Boot] [PATCH v2 05/21] efi_loader: add device-path utils
2017-09-10 11:21 ` [U-Boot] [PATCH v2 05/21] efi_loader: add device-path utils Rob Clark
@ 2017-09-12 12:30 ` Simon Glass
2017-09-12 13:05 ` Rob Clark
0 siblings, 1 reply; 46+ messages in thread
From: Simon Glass @ 2017-09-12 12:30 UTC (permalink / raw)
To: u-boot
Hi Rob,
On 10 September 2017 at 05:21, Rob Clark <robdclark@gmail.com> wrote:
> Helpers to construct device-paths from devices, partitions, files, and
> for parsing and manipulating device-paths.
>
> For non-legacy devices, this will use u-boot's device-model to construct
> device-paths which include bus hierarchy to construct device-paths. For
> legacy devices we still fake it, but slightly more convincingly.
>
> Signed-off-by: Rob Clark <robdclark@gmail.com>
> ---
> include/efi_api.h | 10 +
> include/efi_loader.h | 26 ++
> lib/efi_loader/Makefile | 2 +-
> lib/efi_loader/efi_boottime.c | 13 +-
> lib/efi_loader/efi_device_path.c | 563 +++++++++++++++++++++++++++++++++++++++
> 5 files changed, 611 insertions(+), 3 deletions(-)
> create mode 100644 lib/efi_loader/efi_device_path.c
Since this is new code we should not need the ifdef CONFIG_BLK,
DM_MMC, etc. here, right?
The deadline for CONFIG_BLK has been set as 2018.05.
Also can we add some simple unit tests for this code somewhere?
Regards,
Simon
^ permalink raw reply [flat|nested] 46+ messages in thread
* [U-Boot] [PATCH v2 05/21] efi_loader: add device-path utils
2017-09-12 12:30 ` Simon Glass
@ 2017-09-12 13:05 ` Rob Clark
0 siblings, 0 replies; 46+ messages in thread
From: Rob Clark @ 2017-09-12 13:05 UTC (permalink / raw)
To: u-boot
On Tue, Sep 12, 2017 at 8:30 AM, Simon Glass <sjg@chromium.org> wrote:
> Hi Rob,
>
> On 10 September 2017 at 05:21, Rob Clark <robdclark@gmail.com> wrote:
>> Helpers to construct device-paths from devices, partitions, files, and
>> for parsing and manipulating device-paths.
>>
>> For non-legacy devices, this will use u-boot's device-model to construct
>> device-paths which include bus hierarchy to construct device-paths. For
>> legacy devices we still fake it, but slightly more convincingly.
>>
>> Signed-off-by: Rob Clark <robdclark@gmail.com>
>> ---
>> include/efi_api.h | 10 +
>> include/efi_loader.h | 26 ++
>> lib/efi_loader/Makefile | 2 +-
>> lib/efi_loader/efi_boottime.c | 13 +-
>> lib/efi_loader/efi_device_path.c | 563 +++++++++++++++++++++++++++++++++++++++
>> 5 files changed, 611 insertions(+), 3 deletions(-)
>> create mode 100644 lib/efi_loader/efi_device_path.c
>
> Since this is new code we should not need the ifdef CONFIG_BLK,
> DM_MMC, etc. here, right?
Alexander was pretty much against dropping support for legacy
devices.. so I think we need that.
There are a bunch of different places where efi_loader can be cleaned
up when we require DM..
> The deadline for CONFIG_BLK has been set as 2018.05.
>
> Also can we add some simple unit tests for this code somewhere?
>
Getting some Shell.efi into the py tests would exercise this and a
whole lot more. Although I think we need to add an aarch64 qemu
device to travis?
BR,
-R
^ permalink raw reply [flat|nested] 46+ messages in thread
* [U-Boot] [PATCH v3 5/9] fs/fat: implement opendir/readdir/closedir
2017-09-10 11:21 [U-Boot] [PATCH v2 00/21] efi_loader: enough UEFI for standard distro boot Rob Clark
` (8 preceding siblings ...)
2017-09-10 11:21 ` [U-Boot] [PATCH v2 05/21] efi_loader: add device-path utils Rob Clark
@ 2017-09-10 11:21 ` Rob Clark
2017-09-10 11:21 ` [U-Boot] [PATCH v2 06/21] efi_loader: drop redundant efi_device_path_protocol Rob Clark
` (20 subsequent siblings)
30 siblings, 0 replies; 46+ messages in thread
From: Rob Clark @ 2017-09-10 11:21 UTC (permalink / raw)
To: u-boot
[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain; charset="windows-1254", Size: 1812 bytes --]
Implement the readdir interface using the directory iterators.
Signed-off-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Łukasz Majewski <lukma@denx.de>
---
fs/fat/fat.c | 61 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 61 insertions(+)
diff --git a/fs/fat/fat.c b/fs/fat/fat.c
index bbba7947ee..82ddb7eab1 100644
--- a/fs/fat/fat.c
+++ b/fs/fat/fat.c
@@ -14,6 +14,7 @@
#include <config.h>
#include <exports.h>
#include <fat.h>
+#include <fs.h>
#include <asm/byteorder.h>
#include <part.h>
#include <malloc.h>
@@ -1146,6 +1147,66 @@ int fat_read_file(const char *filename, void *buf, loff_t offset, loff_t len,
return ret;
}
+typedef struct {
+ struct fs_dir_stream parent;
+ struct fs_dirent dirent;
+ fsdata fsdata;
+ fat_itr itr;
+} fat_dir;
+
+int fat_opendir(const char *filename, struct fs_dir_stream **dirsp)
+{
+ fat_dir *dir = malloc(sizeof(*dir));
+ int ret;
+
+ if (!dir)
+ return -ENOMEM;
+
+ ret = fat_itr_root(&dir->itr, &dir->fsdata);
+ if (ret)
+ goto fail;
+
+ ret = fat_itr_resolve(&dir->itr, filename, TYPE_DIR);
+ if (ret)
+ goto fail;
+
+ *dirsp = (struct fs_dir_stream *)dir;
+ return 0;
+
+fail:
+ free(dir);
+ return ret;
+}
+
+int fat_readdir(struct fs_dir_stream *dirs, struct fs_dirent **dentp)
+{
+ fat_dir *dir = (fat_dir *)dirs;
+ struct fs_dirent *dent = &dir->dirent;
+
+ if (!fat_itr_next(&dir->itr))
+ return -ENOENT;
+
+ memset(dent, 0, sizeof(*dent));
+ strcpy(dent->name, dir->itr.name);
+
+ if (fat_itr_isdir(&dir->itr)) {
+ dent->type = FS_DT_DIR;
+ } else {
+ dent->type = FS_DT_REG;
+ dent->size = FAT2CPU32(dir->itr.dent->size);
+ }
+
+ *dentp = dent;
+
+ return 0;
+}
+
+void fat_closedir(struct fs_dir_stream *dirs)
+{
+ fat_dir *dir = (fat_dir *)dirs;
+ free(dir);
+}
+
void fat_close(void)
{
}
--
2.13.5
^ permalink raw reply related [flat|nested] 46+ messages in thread* [U-Boot] [PATCH v2 06/21] efi_loader: drop redundant efi_device_path_protocol
2017-09-10 11:21 [U-Boot] [PATCH v2 00/21] efi_loader: enough UEFI for standard distro boot Rob Clark
` (9 preceding siblings ...)
2017-09-10 11:21 ` [U-Boot] [PATCH v3 5/9] fs/fat: implement opendir/readdir/closedir Rob Clark
@ 2017-09-10 11:21 ` Rob Clark
2017-09-10 11:21 ` [U-Boot] [PATCH v3 6/9] fat/fs: remove a bunch of dead code Rob Clark
` (19 subsequent siblings)
30 siblings, 0 replies; 46+ messages in thread
From: Rob Clark @ 2017-09-10 11:21 UTC (permalink / raw)
To: u-boot
This is really the same thing as the efi_device_path struct.
Signed-off-by: Rob Clark <robdclark@gmail.com>
---
include/efi_api.h | 12 ++----------
lib/efi_loader/efi_device_path_to_text.c | 13 ++++++++-----
2 files changed, 10 insertions(+), 15 deletions(-)
diff --git a/include/efi_api.h b/include/efi_api.h
index 4e27c82129..ac58fd58de 100644
--- a/include/efi_api.h
+++ b/include/efi_api.h
@@ -487,22 +487,14 @@ struct efi_console_control_protocol
EFI_GUID(0x8b843e20, 0x8132, 0x4852, \
0x90, 0xcc, 0x55, 0x1a, 0x4e, 0x4a, 0x7f, 0x1c)
-struct efi_device_path_protocol
-{
- uint8_t type;
- uint8_t sub_type;
- uint16_t length;
- uint8_t data[];
-};
-
struct efi_device_path_to_text_protocol
{
uint16_t *(EFIAPI *convert_device_node_to_text)(
- struct efi_device_path_protocol *device_node,
+ struct efi_device_path *device_node,
bool display_only,
bool allow_shortcuts);
uint16_t *(EFIAPI *convert_device_path_to_text)(
- struct efi_device_path_protocol *device_path,
+ struct efi_device_path *device_path,
bool display_only,
bool allow_shortcuts);
};
diff --git a/lib/efi_loader/efi_device_path_to_text.c b/lib/efi_loader/efi_device_path_to_text.c
index 4b2f43f0c8..f9d071ac50 100644
--- a/lib/efi_loader/efi_device_path_to_text.c
+++ b/lib/efi_loader/efi_device_path_to_text.c
@@ -16,7 +16,7 @@ const efi_guid_t efi_guid_device_path_to_text_protocol =
EFI_DEVICE_PATH_TO_TEXT_PROTOCOL_GUID;
static uint16_t *efi_convert_device_node_to_text(
- struct efi_device_path_protocol *device_node,
+ struct efi_device_path *device_node,
bool display_only,
bool allow_shortcuts)
{
@@ -55,15 +55,18 @@ static uint16_t *efi_convert_device_node_to_text(
break;
case DEVICE_PATH_TYPE_MEDIA_DEVICE:
switch (device_node->sub_type) {
- case DEVICE_PATH_SUB_TYPE_FILE_PATH:
+ case DEVICE_PATH_SUB_TYPE_FILE_PATH: {
+ struct efi_device_path_file_path *fp =
+ (struct efi_device_path_file_path *)device_node;
buffer_size = device_node->length - 4;
r = efi_allocate_pool(EFI_ALLOCATE_ANY_PAGES,
buffer_size, (void **) &buffer);
if (r != EFI_SUCCESS)
return NULL;
- memcpy(buffer, device_node->data, buffer_size);
+ memcpy(buffer, fp->str, buffer_size);
break;
}
+ }
break;
}
@@ -89,7 +92,7 @@ static uint16_t *efi_convert_device_node_to_text(
}
static uint16_t EFIAPI *efi_convert_device_node_to_text_ext(
- struct efi_device_path_protocol *device_node,
+ struct efi_device_path *device_node,
bool display_only,
bool allow_shortcuts)
{
@@ -105,7 +108,7 @@ static uint16_t EFIAPI *efi_convert_device_node_to_text_ext(
}
static uint16_t EFIAPI *efi_convert_device_path_to_text(
- struct efi_device_path_protocol *device_path,
+ struct efi_device_path *device_path,
bool display_only,
bool allow_shortcuts)
{
--
2.13.5
^ permalink raw reply related [flat|nested] 46+ messages in thread* [U-Boot] [PATCH v3 6/9] fat/fs: remove a bunch of dead code
2017-09-10 11:21 [U-Boot] [PATCH v2 00/21] efi_loader: enough UEFI for standard distro boot Rob Clark
` (10 preceding siblings ...)
2017-09-10 11:21 ` [U-Boot] [PATCH v2 06/21] efi_loader: drop redundant efi_device_path_protocol Rob Clark
@ 2017-09-10 11:21 ` Rob Clark
2017-09-10 11:21 ` [U-Boot] [PATCH v2 07/21] efi_loader: flesh out device-path to text Rob Clark
` (18 subsequent siblings)
30 siblings, 0 replies; 46+ messages in thread
From: Rob Clark @ 2017-09-10 11:21 UTC (permalink / raw)
To: u-boot
Spotted by chance, when trying to remove file_fat_ls(), I noticed there
were some dead users of the API.
Signed-off-by: Rob Clark <robdclark@gmail.com>
Acked-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
---
fs/fat/Makefile | 4 --
fs/fat/file.c | 183 --------------------------------------------------------
include/fat.h | 20 -------
3 files changed, 207 deletions(-)
delete mode 100644 fs/fat/file.c
diff --git a/fs/fat/Makefile b/fs/fat/Makefile
index b60e8486c4..3e2a6b01a8 100644
--- a/fs/fat/Makefile
+++ b/fs/fat/Makefile
@@ -5,7 +5,3 @@
obj-$(CONFIG_FS_FAT) := fat.o
obj-$(CONFIG_FAT_WRITE):= fat_write.o
-
-ifndef CONFIG_SPL_BUILD
-obj-$(CONFIG_FS_FAT) += file.o
-endif
diff --git a/fs/fat/file.c b/fs/fat/file.c
deleted file mode 100644
index 89706117b9..0000000000
--- a/fs/fat/file.c
+++ /dev/null
@@ -1,183 +0,0 @@
-/*
- * file.c
- *
- * Mini "VFS" by Marcus Sundberg
- *
- * 2002-07-28 - rjones at nexus-tech.net - ported to ppcboot v1.1.6
- * 2003-03-10 - kharris at nexus-tech.net - ported to uboot
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#include <common.h>
-#include <config.h>
-#include <malloc.h>
-#include <fat.h>
-#include <linux/stat.h>
-#include <linux/time.h>
-
-/* Supported filesystems */
-static const struct filesystem filesystems[] = {
- { file_fat_detectfs, file_fat_ls, file_fat_read, "FAT" },
-};
-#define NUM_FILESYS (sizeof(filesystems)/sizeof(struct filesystem))
-
-/* The filesystem which was last detected */
-static int current_filesystem = FSTYPE_NONE;
-
-/* The current working directory */
-#define CWD_LEN 511
-char file_cwd[CWD_LEN+1] = "/";
-
-const char *
-file_getfsname(int idx)
-{
- if (idx < 0 || idx >= NUM_FILESYS)
- return NULL;
-
- return filesystems[idx].name;
-}
-
-static void
-pathcpy(char *dest, const char *src)
-{
- char *origdest = dest;
-
- do {
- if (dest-file_cwd >= CWD_LEN) {
- *dest = '\0';
- return;
- }
- *(dest) = *(src);
- if (*src == '\0') {
- if (dest-- != origdest && ISDIRDELIM(*dest)) {
- *dest = '\0';
- }
- return;
- }
- ++dest;
-
- if (ISDIRDELIM(*src))
- while (ISDIRDELIM(*src)) src++;
- else
- src++;
- } while (1);
-}
-
-int
-file_cd(const char *path)
-{
- if (ISDIRDELIM(*path)) {
- while (ISDIRDELIM(*path)) path++;
- strncpy(file_cwd+1, path, CWD_LEN-1);
- } else {
- const char *origpath = path;
- char *tmpstr = file_cwd;
- int back = 0;
-
- while (*tmpstr != '\0') tmpstr++;
- do {
- tmpstr--;
- } while (ISDIRDELIM(*tmpstr));
-
- while (*path == '.') {
- path++;
- while (*path == '.') {
- path++;
- back++;
- }
- if (*path != '\0' && !ISDIRDELIM(*path)) {
- path = origpath;
- back = 0;
- break;
- }
- while (ISDIRDELIM(*path)) path++;
- origpath = path;
- }
-
- while (back--) {
- /* Strip off path component */
- while (!ISDIRDELIM(*tmpstr)) {
- tmpstr--;
- }
- if (tmpstr == file_cwd) {
- /* Incremented again right after the loop. */
- tmpstr--;
- break;
- }
- /* Skip delimiters */
- while (ISDIRDELIM(*tmpstr)) tmpstr--;
- }
- tmpstr++;
- if (*path == '\0') {
- if (tmpstr == file_cwd) {
- *tmpstr = '/';
- tmpstr++;
- }
- *tmpstr = '\0';
- return 0;
- }
- *tmpstr = '/';
- pathcpy(tmpstr+1, path);
- }
-
- return 0;
-}
-
-int
-file_detectfs(void)
-{
- int i;
-
- current_filesystem = FSTYPE_NONE;
-
- for (i = 0; i < NUM_FILESYS; i++) {
- if (filesystems[i].detect() == 0) {
- strcpy(file_cwd, "/");
- current_filesystem = i;
- break;
- }
- }
-
- return current_filesystem;
-}
-
-int
-file_ls(const char *dir)
-{
- char fullpath[1024];
- const char *arg;
-
- if (current_filesystem == FSTYPE_NONE) {
- printf("Can't list files without a filesystem!\n");
- return -1;
- }
-
- if (ISDIRDELIM(*dir)) {
- arg = dir;
- } else {
- sprintf(fullpath, "%s/%s", file_cwd, dir);
- arg = fullpath;
- }
- return filesystems[current_filesystem].ls(arg);
-}
-
-int file_read(const char *filename, void *buffer, int maxsize)
-{
- char fullpath[1024];
- const char *arg;
-
- if (current_filesystem == FSTYPE_NONE) {
- printf("Can't load file without a filesystem!\n");
- return -1;
- }
-
- if (ISDIRDELIM(*filename)) {
- arg = filename;
- } else {
- sprintf(fullpath, "%s/%s", file_cwd, filename);
- arg = fullpath;
- }
-
- return filesystems[current_filesystem].read(arg, buffer, maxsize);
-}
diff --git a/include/fat.h b/include/fat.h
index 18d8981c48..b255ce5337 100644
--- a/include/fat.h
+++ b/include/fat.h
@@ -178,25 +178,6 @@ static inline u32 clust_to_sect(fsdata *fsdata, u32 clust)
return fsdata->data_begin + clust * fsdata->clust_size;
}
-typedef int (file_detectfs_func)(void);
-typedef int (file_ls_func)(const char *dir);
-typedef int (file_read_func)(const char *filename, void *buffer,
- int maxsize);
-
-struct filesystem {
- file_detectfs_func *detect;
- file_ls_func *ls;
- file_read_func *read;
- const char name[12];
-};
-
-/* FAT tables */
-file_detectfs_func file_fat_detectfs;
-file_ls_func file_fat_ls;
-file_read_func file_fat_read;
-
-/* Currently this doesn't check if the dir exists or is valid... */
-int file_cd(const char *path);
int file_fat_detectfs(void);
int file_fat_ls(const char *dir);
int fat_exists(const char *filename);
@@ -204,7 +185,6 @@ int fat_size(const char *filename, loff_t *size);
int file_fat_read_at(const char *filename, loff_t pos, void *buffer,
loff_t maxsize, loff_t *actread);
int file_fat_read(const char *filename, void *buffer, int maxsize);
-const char *file_getfsname(int idx);
int fat_set_blk_dev(struct blk_desc *rbdd, disk_partition_t *info);
int fat_register_device(struct blk_desc *dev_desc, int part_no);
--
2.13.5
^ permalink raw reply related [flat|nested] 46+ messages in thread* [U-Boot] [PATCH v2 07/21] efi_loader: flesh out device-path to text
2017-09-10 11:21 [U-Boot] [PATCH v2 00/21] efi_loader: enough UEFI for standard distro boot Rob Clark
` (11 preceding siblings ...)
2017-09-10 11:21 ` [U-Boot] [PATCH v3 6/9] fat/fs: remove a bunch of dead code Rob Clark
@ 2017-09-10 11:21 ` Rob Clark
2017-09-10 11:21 ` [U-Boot] [PATCH v3 7/9] fat/fs: move ls to generic implementation Rob Clark
` (17 subsequent siblings)
30 siblings, 0 replies; 46+ messages in thread
From: Rob Clark @ 2017-09-10 11:21 UTC (permalink / raw)
To: u-boot
It needs to handle more device-path node types, and also multiple levels
of path hierarchy. To simplify this, initially construct utf8 string to
a temporary buffer, and then allocate the real utf16 buffer that is
returned. This should be mostly for debugging or at least not critical-
path so an extra copy won't hurt, and is saner than the alternative.
Signed-off-by: Rob Clark <robdclark@gmail.com>
---
include/efi_api.h | 1 +
include/efi_loader.h | 2 +
lib/efi_loader/efi_device_path_to_text.c | 241 +++++++++++++++++++++++--------
3 files changed, 181 insertions(+), 63 deletions(-)
diff --git a/include/efi_api.h b/include/efi_api.h
index ac58fd58de..0c36122107 100644
--- a/include/efi_api.h
+++ b/include/efi_api.h
@@ -304,6 +304,7 @@ struct efi_device_path_vendor {
#define EFI_PNP_ID(ID) (u32)(((ID) << 16) | 0x41D0)
#define EISA_PNP_ID(ID) EFI_PNP_ID(ID)
+#define EISA_PNP_NUM(ID) ((ID) >> 16)
struct efi_device_path_acpi_path {
struct efi_device_path dp;
diff --git a/include/efi_loader.h b/include/efi_loader.h
index d052b03ab7..f39c2ee6da 100644
--- a/include/efi_loader.h
+++ b/include/efi_loader.h
@@ -59,6 +59,8 @@ extern struct efi_simple_input_interface efi_con_in;
extern const struct efi_console_control_protocol efi_console_control;
extern const struct efi_device_path_to_text_protocol efi_device_path_to_text;
+uint16_t *efi_dp_str(struct efi_device_path *dp);
+
extern const efi_guid_t efi_guid_console_control;
extern const efi_guid_t efi_guid_device_path;
extern const efi_guid_t efi_guid_loaded_image;
diff --git a/lib/efi_loader/efi_device_path_to_text.c b/lib/efi_loader/efi_device_path_to_text.c
index f9d071ac50..1a5ef3919b 100644
--- a/lib/efi_loader/efi_device_path_to_text.c
+++ b/lib/efi_loader/efi_device_path_to_text.c
@@ -15,82 +15,197 @@
const efi_guid_t efi_guid_device_path_to_text_protocol =
EFI_DEVICE_PATH_TO_TEXT_PROTOCOL_GUID;
-static uint16_t *efi_convert_device_node_to_text(
- struct efi_device_path *device_node,
- bool display_only,
- bool allow_shortcuts)
+static char *dp_unknown(char *s, struct efi_device_path *dp)
{
- unsigned long buffer_size;
- efi_status_t r;
- uint16_t *buffer = NULL;
- int i;
+ s += sprintf(s, "/UNKNOWN(%04x,%04x)", dp->type, dp->sub_type);
+ return s;
+}
- switch (device_node->type) {
- case DEVICE_PATH_TYPE_END:
- return NULL;
- case DEVICE_PATH_TYPE_MESSAGING_DEVICE:
- switch (device_node->sub_type) {
- case DEVICE_PATH_SUB_TYPE_MSG_MAC_ADDR: {
- struct efi_device_path_mac_addr *dp =
- (struct efi_device_path_mac_addr *)device_node;
-
- if (dp->if_type != 0 && dp->if_type != 1)
- break;
- r = efi_allocate_pool(EFI_ALLOCATE_ANY_PAGES,
- 2 * MAC_OUTPUT_LEN,
- (void **)&buffer);
- if (r != EFI_SUCCESS)
- return NULL;
- sprintf((char *)buffer,
- "MAC(%02x%02x%02x%02x%02x%02x,0x%1x)",
- dp->mac.addr[0], dp->mac.addr[1],
- dp->mac.addr[2], dp->mac.addr[3],
- dp->mac.addr[4], dp->mac.addr[5],
- dp->if_type);
- for (i = MAC_OUTPUT_LEN - 1; i >= 0; --i)
- buffer[i] = ((uint8_t *)buffer)[i];
+static char *dp_hardware(char *s, struct efi_device_path *dp)
+{
+ switch (dp->sub_type) {
+ case DEVICE_PATH_SUB_TYPE_VENDOR: {
+ struct efi_device_path_vendor *vdp =
+ (struct efi_device_path_vendor *)dp;
+ s += sprintf(s, "/VenHw(%pUl)", &vdp->guid);
+ break;
+ }
+ default:
+ s = dp_unknown(s, dp);
+ break;
+ }
+ return s;
+}
+
+static char *dp_acpi(char *s, struct efi_device_path *dp)
+{
+ switch (dp->sub_type) {
+ case DEVICE_PATH_SUB_TYPE_ACPI_DEVICE: {
+ struct efi_device_path_acpi_path *adp =
+ (struct efi_device_path_acpi_path *)dp;
+ s += sprintf(s, "/Acpi(PNP%04x", EISA_PNP_NUM(adp->hid));
+ if (adp->uid)
+ s += sprintf(s, ",%d", adp->uid);
+ s += sprintf(s, ")");
+ break;
+ }
+ default:
+ s = dp_unknown(s, dp);
+ break;
+ }
+ return s;
+}
+
+static char *dp_msging(char *s, struct efi_device_path *dp)
+{
+ switch (dp->sub_type) {
+ case DEVICE_PATH_SUB_TYPE_MSG_USB: {
+ struct efi_device_path_usb *udp =
+ (struct efi_device_path_usb *)dp;
+ s += sprintf(s, "/Usb(0x%x,0x%x)", udp->parent_port_number,
+ udp->usb_interface);
+ break;
+ }
+ case DEVICE_PATH_SUB_TYPE_MSG_MAC_ADDR: {
+ struct efi_device_path_mac_addr *mdp =
+ (struct efi_device_path_mac_addr *)dp;
+
+ if (mdp->if_type != 0 && mdp->if_type != 1)
break;
- }
- }
+
+ s += sprintf(s, "/MAC(%02x%02x%02x%02x%02x%02x,0x%1x)",
+ mdp->mac.addr[0], mdp->mac.addr[1],
+ mdp->mac.addr[2], mdp->mac.addr[3],
+ mdp->mac.addr[4], mdp->mac.addr[5],
+ mdp->if_type);
+
+ break;
+ }
+ case DEVICE_PATH_SUB_TYPE_MSG_USB_CLASS: {
+ struct efi_device_path_usb_class *ucdp =
+ (struct efi_device_path_usb_class *)dp;
+
+ s += sprintf(s, "/USBClass(%x,%x,%x,%x,%x)",
+ ucdp->vendor_id, ucdp->product_id,
+ ucdp->device_class, ucdp->device_subclass,
+ ucdp->device_protocol);
+
+ break;
+ }
+ case DEVICE_PATH_SUB_TYPE_MSG_SD:
+ case DEVICE_PATH_SUB_TYPE_MSG_MMC: {
+ const char *typename =
+ (dp->sub_type == DEVICE_PATH_SUB_TYPE_MSG_SD) ?
+ "SDCard" : "MMC";
+ struct efi_device_path_sd_mmc_path *sddp =
+ (struct efi_device_path_sd_mmc_path *)dp;
+ s += sprintf(s, "/%s(Slot%u)", typename, sddp->slot_number);
+ break;
+ }
+ default:
+ s = dp_unknown(s, dp);
break;
- case DEVICE_PATH_TYPE_MEDIA_DEVICE:
- switch (device_node->sub_type) {
- case DEVICE_PATH_SUB_TYPE_FILE_PATH: {
- struct efi_device_path_file_path *fp =
- (struct efi_device_path_file_path *)device_node;
- buffer_size = device_node->length - 4;
- r = efi_allocate_pool(EFI_ALLOCATE_ANY_PAGES,
- buffer_size, (void **) &buffer);
- if (r != EFI_SUCCESS)
- return NULL;
- memcpy(buffer, fp->str, buffer_size);
+ }
+ return s;
+}
+
+static char *dp_media(char *s, struct efi_device_path *dp)
+{
+ switch (dp->sub_type) {
+ case DEVICE_PATH_SUB_TYPE_HARD_DRIVE_PATH: {
+ struct efi_device_path_hard_drive_path *hddp =
+ (struct efi_device_path_hard_drive_path *)dp;
+ void *sig = hddp->partition_signature;
+
+ switch (hddp->signature_type) {
+ case SIG_TYPE_MBR:
+ s += sprintf(s, "/HD(Part%d,Sig%08x)",
+ hddp->partition_number,
+ *(uint32_t *)sig);
break;
+ case SIG_TYPE_GUID:
+ s += sprintf(s, "/HD(Part%d,Sig%pUl)",
+ hddp->partition_number, sig);
+ default:
+ s += sprintf(s, "/HD(Part%d,MBRType=%02x,SigType=%02x)",
+ hddp->partition_number, hddp->partmap_type,
+ hddp->signature_type);
}
- }
+
+ break;
+ }
+ case DEVICE_PATH_SUB_TYPE_CDROM_PATH: {
+ struct efi_device_path_cdrom_path *cddp =
+ (struct efi_device_path_cdrom_path *)dp;
+ s += sprintf(s, "/CDROM(0x%x)", cddp->boot_entry);
+ break;
+ }
+ case DEVICE_PATH_SUB_TYPE_FILE_PATH: {
+ struct efi_device_path_file_path *fp =
+ (struct efi_device_path_file_path *)dp;
+ int slen = (dp->length - sizeof(*dp)) / 2;
+ s += sprintf(s, "/%-*ls", slen, fp->str);
+ break;
+ }
+ default:
+ s = dp_unknown(s, dp);
break;
}
+ return s;
+}
- /*
- * For all node types that we do not yet support return
- * 'UNKNOWN(type,subtype)'.
- */
- if (!buffer) {
- r = efi_allocate_pool(EFI_ALLOCATE_ANY_PAGES,
- 2 * UNKNOWN_OUTPUT_LEN,
- (void **)&buffer);
- if (r != EFI_SUCCESS)
- return NULL;
- sprintf((char *)buffer,
- "UNKNOWN(%04x,%04x)",
- device_node->type,
- device_node->sub_type);
- for (i = UNKNOWN_OUTPUT_LEN - 1; i >= 0; --i)
- buffer[i] = ((uint8_t *)buffer)[i];
+static uint16_t *efi_convert_device_node_to_text(
+ struct efi_device_path *dp,
+ bool display_only,
+ bool allow_shortcuts)
+{
+ unsigned long len;
+ efi_status_t r;
+ char buf[512]; /* this ought be be big enough for worst case */
+ char *str = buf;
+ uint16_t *out;
+
+ while (dp) {
+ switch (dp->type) {
+ case DEVICE_PATH_TYPE_HARDWARE_DEVICE:
+ str = dp_hardware(str, dp);
+ break;
+ case DEVICE_PATH_TYPE_ACPI_DEVICE:
+ str = dp_acpi(str, dp);
+ break;
+ case DEVICE_PATH_TYPE_MESSAGING_DEVICE:
+ str = dp_msging(str, dp);
+ break;
+ case DEVICE_PATH_TYPE_MEDIA_DEVICE:
+ str = dp_media(str, dp);
+ break;
+ default:
+ str = dp_unknown(str, dp);
+ }
+
+ dp = efi_dp_next(dp);
}
- return buffer;
+ *str++ = '\0';
+
+ len = str - buf;
+ r = efi_allocate_pool(EFI_ALLOCATE_ANY_PAGES, 2 * len, (void **)&out);
+ if (r != EFI_SUCCESS)
+ return NULL;
+
+ ascii2unicode(out, buf);
+ out[len - 1] = 0;
+
+ return out;
}
+/* helper for debug prints.. efi_free_pool() the result. */
+uint16_t *efi_dp_str(struct efi_device_path *dp)
+{
+ return efi_convert_device_node_to_text(dp, true, true);
+}
+
+
static uint16_t EFIAPI *efi_convert_device_node_to_text_ext(
struct efi_device_path *device_node,
bool display_only,
--
2.13.5
^ permalink raw reply related [flat|nested] 46+ messages in thread* [U-Boot] [PATCH v3 7/9] fat/fs: move ls to generic implementation
2017-09-10 11:21 [U-Boot] [PATCH v2 00/21] efi_loader: enough UEFI for standard distro boot Rob Clark
` (12 preceding siblings ...)
2017-09-10 11:21 ` [U-Boot] [PATCH v2 07/21] efi_loader: flesh out device-path to text Rob Clark
@ 2017-09-10 11:21 ` Rob Clark
2017-09-10 11:21 ` [U-Boot] [PATCH v2 08/21] efi_loader: use proper device-paths for partitions Rob Clark
` (16 subsequent siblings)
30 siblings, 0 replies; 46+ messages in thread
From: Rob Clark @ 2017-09-10 11:21 UTC (permalink / raw)
To: u-boot
[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain; charset="windows-1254", Size: 3888 bytes --]
Add a generic implementation of 'ls' using opendir/readdir/closedir, and
replace fat's custom implementation. Other filesystems should move to
the generic implementation after they add opendir/readdir/closedir
support.
Signed-off-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Łukasz Majewski <lukma@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
---
fs/fat/fat.c | 32 --------------------------------
fs/fs.c | 35 +++++++++++++++++++++++++++++++++--
include/fat.h | 5 ++++-
3 files changed, 37 insertions(+), 35 deletions(-)
diff --git a/fs/fat/fat.c b/fs/fat/fat.c
index 82ddb7eab1..c951d84f57 100644
--- a/fs/fat/fat.c
+++ b/fs/fat/fat.c
@@ -1029,38 +1029,6 @@ int file_fat_detectfs(void)
return 0;
}
-int file_fat_ls(const char *dir)
-{
- fsdata fsdata;
- fat_itr itrblock, *itr = &itrblock;
- int files = 0, dirs = 0;
- int ret;
-
- ret = fat_itr_root(itr, &fsdata);
- if (ret)
- return ret;
-
- ret = fat_itr_resolve(itr, dir, TYPE_DIR);
- if (ret)
- return ret;
-
- while (fat_itr_next(itr)) {
- if (fat_itr_isdir(itr)) {
- printf(" %s/\n", itr->name);
- dirs++;
- } else {
- printf(" %8u %s\n",
- FAT2CPU32(itr->dent->size),
- itr->name);
- files++;
- }
- }
-
- printf("\n%d file(s), %d dir(s)\n\n", files, dirs);
-
- return 0;
-}
-
int fat_exists(const char *filename)
{
fsdata fsdata;
diff --git a/fs/fs.c b/fs/fs.c
index fc0c953fcb..3481229aa6 100644
--- a/fs/fs.c
+++ b/fs/fs.c
@@ -37,6 +37,35 @@ static inline int fs_ls_unsupported(const char *dirname)
return -1;
}
+/* generic implementation of ls in terms of opendir/readdir/closedir */
+__maybe_unused
+static int fs_ls_generic(const char *dirname)
+{
+ struct fs_dir_stream *dirs;
+ struct fs_dirent *dent;
+ int nfiles = 0, ndirs = 0;
+
+ dirs = fs_opendir(dirname);
+ if (!dirs)
+ return -errno;
+
+ while ((dent = fs_readdir(dirs))) {
+ if (dent->type == FS_DT_DIR) {
+ printf(" %s/\n", dent->name);
+ ndirs++;
+ } else {
+ printf(" %8lld %s\n", dent->size, dent->name);
+ nfiles++;
+ }
+ }
+
+ fs_closedir(dirs);
+
+ printf("\n%d file(s), %d dir(s)\n\n", nfiles, ndirs);
+
+ return 0;
+}
+
static inline int fs_exists_unsupported(const char *filename)
{
return 0;
@@ -123,7 +152,7 @@ static struct fstype_info fstypes[] = {
.null_dev_desc_ok = false,
.probe = fat_set_blk_dev,
.close = fat_close,
- .ls = file_fat_ls,
+ .ls = fs_ls_generic,
.exists = fat_exists,
.size = fat_size,
.read = fat_read_file,
@@ -133,7 +162,9 @@ static struct fstype_info fstypes[] = {
.write = fs_write_unsupported,
#endif
.uuid = fs_uuid_unsupported,
- .opendir = fs_opendir_unsupported,
+ .opendir = fat_opendir,
+ .readdir = fat_readdir,
+ .closedir = fat_closedir,
},
#endif
#ifdef CONFIG_FS_EXT4
diff --git a/include/fat.h b/include/fat.h
index b255ce5337..83cd90017e 100644
--- a/include/fat.h
+++ b/include/fat.h
@@ -11,6 +11,7 @@
#define _FAT_H_
#include <asm/byteorder.h>
+#include <fs.h>
#define CONFIG_SUPPORT_VFAT
/* Maximum Long File Name length supported here is 128 UTF-16 code units */
@@ -179,7 +180,6 @@ static inline u32 clust_to_sect(fsdata *fsdata, u32 clust)
}
int file_fat_detectfs(void);
-int file_fat_ls(const char *dir);
int fat_exists(const char *filename);
int fat_size(const char *filename, loff_t *size);
int file_fat_read_at(const char *filename, loff_t pos, void *buffer,
@@ -192,5 +192,8 @@ int file_fat_write(const char *filename, void *buf, loff_t offset, loff_t len,
loff_t *actwrite);
int fat_read_file(const char *filename, void *buf, loff_t offset, loff_t len,
loff_t *actread);
+int fat_opendir(const char *filename, struct fs_dir_stream **dirsp);
+int fat_readdir(struct fs_dir_stream *dirs, struct fs_dirent **dentp);
+void fat_closedir(struct fs_dir_stream *dirs);
void fat_close(void);
#endif /* _FAT_H_ */
--
2.13.5
^ permalink raw reply related [flat|nested] 46+ messages in thread* [U-Boot] [PATCH v2 08/21] efi_loader: use proper device-paths for partitions
2017-09-10 11:21 [U-Boot] [PATCH v2 00/21] efi_loader: enough UEFI for standard distro boot Rob Clark
` (13 preceding siblings ...)
2017-09-10 11:21 ` [U-Boot] [PATCH v3 7/9] fat/fs: move ls to generic implementation Rob Clark
@ 2017-09-10 11:21 ` Rob Clark
2017-09-10 11:21 ` [U-Boot] [PATCH v3 8/9] fs/fat: fix case for FAT shortnames Rob Clark
` (15 subsequent siblings)
30 siblings, 0 replies; 46+ messages in thread
From: Rob Clark @ 2017-09-10 11:21 UTC (permalink / raw)
To: u-boot
Also, create disk objects for the disk itself, in addition to the
partitions. (UEFI terminology is a bit confusing, a "disk" object is
really a partition.) This helps grub properly identify the boot device
since it is trying to match up partition "disk" object with it's parent
device.
Now instead of seeing devices like:
/File(sdhci at 07864000.blk)/EndEntire
/File(usb_mass_storage.lun0)/EndEntire
You see:
/ACPI(133741d0,0)/UnknownMessaging(1d)/EndEntire
/ACPI(133741d0,0)/UnknownMessaging(1d)/HD(0,800,64000,dd904a8c00000000,1,1)/EndEntire
/ACPI(133741d0,0)/UnknownMessaging(1d)/HD(1,64800,200000,dd904a8c00000000,1,1)/EndEntire
/ACPI(133741d0,0)/UnknownMessaging(1d)/HD(2,264800,19a000,dd904a8c00000000,1,1)/EndEntire
/ACPI(133741d0,0)/USB(0,0)/USB(0,0)/USB(0,0)/EndEntire
/ACPI(133741d0,0)/USB(0,0)/USB(0,0)/USB(0,0)/HD(0,800,60000,38ca680200000000,1,1)/EndEntire
/ACPI(133741d0,0)/USB(0,0)/USB(0,0)/USB(0,0)/HD(1,61000,155000,38ca680200000000,1,1)/EndEntire
/ACPI(133741d0,0)/USB(0,0)/USB(0,0)/USB(0,0)/HD(2,20fa800,1bbf8800,38ca680200000000,1,1)/EndEntire
/ACPI(133741d0,0)/USB(0,0)/USB(0,0)/USB(0,0)/HD(3,1b6800,1f44000,38ca680200000000,1,1)/EndEntire
This is on a board with single USB disk and single sd-card. The
UnknownMessaging(1d) node in the device-path is the MMC device,
but grub_efi_print_device_path() hasn't been updated yet for some
of the newer device-path sub-types.
This patch is inspired by a patch originally from Peter Jones, but
re-worked to use efi_device_path, so it doesn't much resemble the
original.
Signed-off-by: Rob Clark <robdclark@gmail.com>
---
lib/efi_loader/efi_disk.c | 54 +++++++++++++++++++++++++++--------------------
1 file changed, 31 insertions(+), 23 deletions(-)
diff --git a/lib/efi_loader/efi_disk.c b/lib/efi_loader/efi_disk.c
index ed06485e33..14f3e020c8 100644
--- a/lib/efi_loader/efi_disk.c
+++ b/lib/efi_loader/efi_disk.c
@@ -28,11 +28,13 @@ struct efi_disk_obj {
/* EFI Interface Media descriptor struct, referenced by ops */
struct efi_block_io_media media;
/* EFI device path to this block device */
- struct efi_device_path_file_path *dp;
+ struct efi_device_path *dp;
+ /* partition # */
+ unsigned part;
/* Offset into disk for simple partitions */
lbaint_t offset;
/* Internal block device */
- const struct blk_desc *desc;
+ struct blk_desc *desc;
};
static efi_status_t EFIAPI efi_disk_reset(struct efi_block_io *this,
@@ -172,26 +174,26 @@ static const struct efi_block_io block_io_disk_template = {
static void efi_disk_add_dev(const char *name,
const char *if_typename,
- const struct blk_desc *desc,
+ struct blk_desc *desc,
int dev_index,
- lbaint_t offset)
+ lbaint_t offset,
+ unsigned part)
{
struct efi_disk_obj *diskobj;
- struct efi_device_path_file_path *dp;
- int objlen = sizeof(*diskobj) + (sizeof(*dp) * 2);
/* Don't add empty devices */
if (!desc->lba)
return;
- diskobj = calloc(1, objlen);
+ diskobj = calloc(1, sizeof(*diskobj));
/* Fill in object data */
- dp = (void *)&diskobj[1];
+ diskobj->dp = efi_dp_from_part(desc, part);
+ diskobj->part = part;
diskobj->parent.protocols[0].guid = &efi_block_io_guid;
diskobj->parent.protocols[0].protocol_interface = &diskobj->ops;
diskobj->parent.protocols[1].guid = &efi_guid_device_path;
- diskobj->parent.protocols[1].protocol_interface = dp;
+ diskobj->parent.protocols[1].protocol_interface = diskobj->dp;
diskobj->parent.handle = diskobj;
diskobj->ops = block_io_disk_template;
diskobj->ifname = if_typename;
@@ -207,17 +209,6 @@ static void efi_disk_add_dev(const char *name,
diskobj->media.last_block = desc->lba - offset;
diskobj->ops.media = &diskobj->media;
- /* Fill in device path */
- diskobj->dp = dp;
- dp[0].dp.type = DEVICE_PATH_TYPE_MEDIA_DEVICE;
- dp[0].dp.sub_type = DEVICE_PATH_SUB_TYPE_FILE_PATH;
- dp[0].dp.length = sizeof(*dp);
- ascii2unicode(dp[0].str, name);
-
- dp[1].dp.type = DEVICE_PATH_TYPE_END;
- dp[1].dp.sub_type = DEVICE_PATH_SUB_TYPE_END;
- dp[1].dp.length = sizeof(*dp);
-
/* Hook up to the device list */
list_add_tail(&diskobj->parent.link, &efi_obj_list);
}
@@ -236,14 +227,18 @@ static int efi_disk_create_eltorito(struct blk_desc *desc,
if (desc->part_type != PART_TYPE_ISO)
return 0;
+ /* and devices for each partition: */
while (!part_get_info(desc, part, &info)) {
snprintf(devname, sizeof(devname), "%s:%d", pdevname,
part);
efi_disk_add_dev(devname, if_typename, desc, diskid,
- info.start);
+ info.start, part);
part++;
disks++;
}
+
+ /* ... and add block device: */
+ efi_disk_add_dev(devname, if_typename, desc, diskid, 0, 0);
#endif
return disks;
@@ -271,9 +266,22 @@ int efi_disk_register(void)
uclass_next_device_check(&dev)) {
struct blk_desc *desc = dev_get_uclass_platdata(dev);
const char *if_typename = dev->driver->name;
+ disk_partition_t info;
+ int part = 1;
printf("Scanning disk %s...\n", dev->name);
- efi_disk_add_dev(dev->name, if_typename, desc, desc->devnum, 0);
+
+ /* add devices for each partition: */
+ while (!part_get_info(desc, part, &info)) {
+ efi_disk_add_dev(dev->name, if_typename, desc,
+ desc->devnum, 0, part);
+ part++;
+ }
+
+ /* ... and add block device: */
+ efi_disk_add_dev(dev->name, if_typename, desc,
+ desc->devnum, 0, 0);
+
disks++;
/*
@@ -309,7 +317,7 @@ int efi_disk_register(void)
snprintf(devname, sizeof(devname), "%s%d",
if_typename, i);
- efi_disk_add_dev(devname, if_typename, desc, i, 0);
+ efi_disk_add_dev(devname, if_typename, desc, i, 0, 0);
disks++;
/*
--
2.13.5
^ permalink raw reply related [flat|nested] 46+ messages in thread* [U-Boot] [PATCH v3 8/9] fs/fat: fix case for FAT shortnames
2017-09-10 11:21 [U-Boot] [PATCH v2 00/21] efi_loader: enough UEFI for standard distro boot Rob Clark
` (14 preceding siblings ...)
2017-09-10 11:21 ` [U-Boot] [PATCH v2 08/21] efi_loader: use proper device-paths for partitions Rob Clark
@ 2017-09-10 11:21 ` Rob Clark
2017-09-10 11:21 ` [U-Boot] [PATCH v2 09/21] efi_loader: use proper device-paths for net Rob Clark
` (14 subsequent siblings)
30 siblings, 0 replies; 46+ messages in thread
From: Rob Clark @ 2017-09-10 11:21 UTC (permalink / raw)
To: u-boot
[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain; charset="windows-1254", Size: 3114 bytes --]
Noticed when comparing our output to linux. There are some lcase bits
which control whether filename and/or extension should be downcase'd.
Signed-off-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Łukasz Majewski <lukma@denx.de>
---
fs/fat/fat.c | 16 ++++++++++------
fs/fat/fat_write.c | 4 ++--
include/fat.h | 6 +++++-
3 files changed, 17 insertions(+), 9 deletions(-)
diff --git a/fs/fat/fat.c b/fs/fat/fat.c
index c951d84f57..65873a2c2a 100644
--- a/fs/fat/fat.c
+++ b/fs/fat/fat.c
@@ -29,11 +29,13 @@ static const int vfat_enabled = 0;
#endif
/*
- * Convert a string to lowercase.
+ * Convert a string to lowercase. Converts at most 'len' characters,
+ * 'len' may be larger than the length of 'str' if 'str' is NULL
+ * terminated.
*/
-static void downcase(char *str)
+static void downcase(char *str, size_t len)
{
- while (*str != '\0') {
+ while (*str != '\0' && len--) {
*str = tolower(*str);
str++;
}
@@ -131,10 +133,13 @@ static void get_name(dir_entry *dirent, char *s_name)
ptr = s_name;
while (*ptr && *ptr != ' ')
ptr++;
+ if (dirent->lcase & CASE_LOWER_BASE)
+ downcase(s_name, (unsigned)(ptr - s_name));
if (dirent->ext[0] && dirent->ext[0] != ' ') {
- *ptr = '.';
- ptr++;
+ *ptr++ = '.';
memcpy(ptr, dirent->ext, 3);
+ if (dirent->lcase & CASE_LOWER_EXT)
+ downcase(ptr, 3);
ptr[3] = '\0';
while (*ptr && *ptr != ' ')
ptr++;
@@ -144,7 +149,6 @@ static void get_name(dir_entry *dirent, char *s_name)
*s_name = '\0';
else if (*s_name == aRING)
*s_name = DELETED_FLAG;
- downcase(s_name);
}
static int flush_dirty_fat_buffer(fsdata *mydata);
diff --git a/fs/fat/fat_write.c b/fs/fat/fat_write.c
index 4ca024c208..d0468baf8f 100644
--- a/fs/fat/fat_write.c
+++ b/fs/fat/fat_write.c
@@ -345,7 +345,7 @@ get_long_file_name(fsdata *mydata, int curclust, __u8 *cluster,
*l_name = '\0';
else if (*l_name == aRING)
*l_name = DELETED_FLAG;
- downcase(l_name);
+ downcase(l_name, INT_MAX);
/* Return the real directory entry */
*retdent = realdent;
@@ -981,7 +981,7 @@ static int do_fat_write(const char *filename, void *buffer, loff_t size,
memcpy(l_filename, filename, name_len);
l_filename[name_len] = 0; /* terminate the string */
- downcase(l_filename);
+ downcase(l_filename, INT_MAX);
startsect = mydata->rootdir_sect;
retdent = find_directory_entry(mydata, startsect,
diff --git a/include/fat.h b/include/fat.h
index 83cd90017e..0f58939124 100644
--- a/include/fat.h
+++ b/include/fat.h
@@ -128,10 +128,14 @@ typedef struct volume_info
/* Boot sign comes last, 2 bytes */
} volume_info;
+/* see dir_entry::lcase: */
+#define CASE_LOWER_BASE 8 /* base (name) is lower case */
+#define CASE_LOWER_EXT 16 /* extension is lower case */
+
typedef struct dir_entry {
char name[8],ext[3]; /* Name and extension */
__u8 attr; /* Attribute bits */
- __u8 lcase; /* Case for base and extension */
+ __u8 lcase; /* Case for name and ext (CASE_LOWER_x) */
__u8 ctime_ms; /* Creation time, milliseconds */
__u16 ctime; /* Creation time */
__u16 cdate; /* Creation date */
--
2.13.5
^ permalink raw reply related [flat|nested] 46+ messages in thread* [U-Boot] [PATCH v2 09/21] efi_loader: use proper device-paths for net
2017-09-10 11:21 [U-Boot] [PATCH v2 00/21] efi_loader: enough UEFI for standard distro boot Rob Clark
` (15 preceding siblings ...)
2017-09-10 11:21 ` [U-Boot] [PATCH v3 8/9] fs/fat: fix case for FAT shortnames Rob Clark
@ 2017-09-10 11:21 ` Rob Clark
2017-09-10 11:21 ` [U-Boot] [PATCH v3 9/9] fs/fat: Clean up open-coded sector <-> cluster conversions Rob Clark
` (13 subsequent siblings)
30 siblings, 0 replies; 46+ messages in thread
From: Rob Clark @ 2017-09-10 11:21 UTC (permalink / raw)
To: u-boot
Signed-off-by: Rob Clark <robdclark@gmail.com>
---
lib/efi_loader/efi_net.c | 19 ++-----------------
1 file changed, 2 insertions(+), 17 deletions(-)
diff --git a/lib/efi_loader/efi_net.c b/lib/efi_loader/efi_net.c
index 0b949d86e8..aa0618fd3a 100644
--- a/lib/efi_loader/efi_net.c
+++ b/lib/efi_loader/efi_net.c
@@ -26,9 +26,6 @@ struct efi_net_obj {
/* EFI Interface callback struct for network */
struct efi_simple_network net;
struct efi_simple_network_mode net_mode;
- /* Device path to the network adapter */
- struct efi_device_path_mac_addr dp_mac;
- struct efi_device_path_file_path dp_end;
/* PXE struct to transmit dhcp data */
struct efi_pxe pxe;
struct efi_pxe_mode pxe_mode;
@@ -213,16 +210,6 @@ void efi_net_set_dhcp_ack(void *pkt, int len)
int efi_net_register(void **handle)
{
struct efi_net_obj *netobj;
- struct efi_device_path_mac_addr dp_net = {
- .dp.type = DEVICE_PATH_TYPE_MESSAGING_DEVICE,
- .dp.sub_type = DEVICE_PATH_SUB_TYPE_MSG_MAC_ADDR,
- .dp.length = sizeof(dp_net),
- };
- struct efi_device_path_file_path dp_end = {
- .dp.type = DEVICE_PATH_TYPE_END,
- .dp.sub_type = DEVICE_PATH_SUB_TYPE_END,
- .dp.length = sizeof(dp_end),
- };
if (!eth_get_dev()) {
/* No eth device active, don't expose any */
@@ -236,7 +223,8 @@ int efi_net_register(void **handle)
netobj->parent.protocols[0].guid = &efi_net_guid;
netobj->parent.protocols[0].protocol_interface = &netobj->net;
netobj->parent.protocols[1].guid = &efi_guid_device_path;
- netobj->parent.protocols[1].protocol_interface = &netobj->dp_mac;
+ netobj->parent.protocols[1].protocol_interface =
+ efi_dp_from_eth();
netobj->parent.protocols[2].guid = &efi_pxe_guid;
netobj->parent.protocols[2].protocol_interface = &netobj->pxe;
netobj->parent.handle = &netobj->net;
@@ -255,9 +243,6 @@ int efi_net_register(void **handle)
netobj->net.receive = efi_net_receive;
netobj->net.mode = &netobj->net_mode;
netobj->net_mode.state = EFI_NETWORK_STARTED;
- netobj->dp_mac = dp_net;
- netobj->dp_end = dp_end;
- memcpy(netobj->dp_mac.mac.addr, eth_get_ethaddr(), 6);
memcpy(netobj->net_mode.current_address.mac_addr, eth_get_ethaddr(), 6);
netobj->net_mode.max_packet_size = PKTSIZE;
--
2.13.5
^ permalink raw reply related [flat|nested] 46+ messages in thread* [U-Boot] [PATCH v3 9/9] fs/fat: Clean up open-coded sector <-> cluster conversions
2017-09-10 11:21 [U-Boot] [PATCH v2 00/21] efi_loader: enough UEFI for standard distro boot Rob Clark
` (16 preceding siblings ...)
2017-09-10 11:21 ` [U-Boot] [PATCH v2 09/21] efi_loader: use proper device-paths for net Rob Clark
@ 2017-09-10 11:21 ` Rob Clark
2017-09-10 11:21 ` [U-Boot] [PATCH v2 10/21] efi_loader: refactor boot device and loaded_image handling Rob Clark
` (12 subsequent siblings)
30 siblings, 0 replies; 46+ messages in thread
From: Rob Clark @ 2017-09-10 11:21 UTC (permalink / raw)
To: u-boot
Use the clust_to_sect() helper that was introduced earlier, and add an
inverse sect_to_clust(), plus update the various spots that open-coded
this conversion previously.
Signed-off-by: Rob Clark <robdclark@gmail.com>
---
fs/fat/fat.c | 8 +++-----
fs/fat/fat_write.c | 8 +++-----
include/fat.h | 6 +++++-
3 files changed, 11 insertions(+), 11 deletions(-)
diff --git a/fs/fat/fat.c b/fs/fat/fat.c
index 65873a2c2a..f5f74c12ff 100644
--- a/fs/fat/fat.c
+++ b/fs/fat/fat.c
@@ -257,8 +257,7 @@ get_cluster(fsdata *mydata, __u32 clustnum, __u8 *buffer, unsigned long size)
int ret;
if (clustnum > 0) {
- startsect = mydata->data_begin +
- clustnum * mydata->clust_size;
+ startsect = clust_to_sect(mydata, clustnum);
} else {
startsect = mydata->rootdir_sect;
}
@@ -594,9 +593,8 @@ static int get_fs_info(fsdata *mydata)
mydata->data_begin = mydata->rootdir_sect +
mydata->rootdir_size -
(mydata->clust_size * 2);
- mydata->root_cluster = (mydata->rootdir_sect -
- mydata->data_begin) /
- mydata->clust_size;
+ mydata->root_cluster =
+ sect_to_clust(mydata, mydata->rootdir_sect);
}
mydata->fatbufnum = -1;
diff --git a/fs/fat/fat_write.c b/fs/fat/fat_write.c
index d0468baf8f..9d2e0ed74c 100644
--- a/fs/fat/fat_write.c
+++ b/fs/fat/fat_write.c
@@ -502,8 +502,7 @@ set_cluster(fsdata *mydata, __u32 clustnum, __u8 *buffer,
int ret;
if (clustnum > 0)
- startsect = mydata->data_begin +
- clustnum * mydata->clust_size;
+ startsect = clust_to_sect(mydata, clustnum);
else
startsect = mydata->rootdir_sect;
@@ -751,8 +750,7 @@ static int check_overflow(fsdata *mydata, __u32 clustnum, loff_t size)
__u32 startsect, sect_num, offset;
if (clustnum > 0) {
- startsect = mydata->data_begin +
- clustnum * mydata->clust_size;
+ startsect = clust_to_sect(mydata, clustnum);
} else {
startsect = mydata->rootdir_sect;
}
@@ -791,7 +789,7 @@ static dir_entry *empty_dentptr;
static dir_entry *find_directory_entry(fsdata *mydata, int startsect,
char *filename, dir_entry *retdent, __u32 start)
{
- __u32 curclust = (startsect - mydata->data_begin) / mydata->clust_size;
+ __u32 curclust = sect_to_clust(mydata, startsect);
debug("get_dentfromdir: %s\n", filename);
diff --git a/include/fat.h b/include/fat.h
index 0f58939124..bdeda95e6d 100644
--- a/include/fat.h
+++ b/include/fat.h
@@ -177,12 +177,16 @@ typedef struct {
__u32 root_cluster; /* First cluster of root dir for FAT32 */
} fsdata;
-/* TODO clean up places that are open-coding this: */
static inline u32 clust_to_sect(fsdata *fsdata, u32 clust)
{
return fsdata->data_begin + clust * fsdata->clust_size;
}
+static inline u32 sect_to_clust(fsdata *fsdata, u32 sect)
+{
+ return (sect - fsdata->data_begin) / fsdata->clust_size;
+}
+
int file_fat_detectfs(void);
int fat_exists(const char *filename);
int fat_size(const char *filename, loff_t *size);
--
2.13.5
^ permalink raw reply related [flat|nested] 46+ messages in thread* [U-Boot] [PATCH v2 10/21] efi_loader: refactor boot device and loaded_image handling
2017-09-10 11:21 [U-Boot] [PATCH v2 00/21] efi_loader: enough UEFI for standard distro boot Rob Clark
` (17 preceding siblings ...)
2017-09-10 11:21 ` [U-Boot] [PATCH v3 9/9] fs/fat: Clean up open-coded sector <-> cluster conversions Rob Clark
@ 2017-09-10 11:21 ` Rob Clark
2017-09-10 11:21 ` [U-Boot] [PATCH v2 11/21] efi_loader: add file/filesys support Rob Clark
` (11 subsequent siblings)
30 siblings, 0 replies; 46+ messages in thread
From: Rob Clark @ 2017-09-10 11:21 UTC (permalink / raw)
To: u-boot
Get rid of the hacky fake boot-device and duplicate device-path
constructing (which needs to match what efi_disk and efi_net do).
Instead convert over to use efi_device_path helpers to construct
device-paths, and use that to look up the actual boot device.
Also, extract out a helper to plug things in properly to the
loaded_image. In a following patch we'll want to re-use this in
efi_load_image() to handle the case of loading an image from a
file_path.
Signed-off-by: Rob Clark <robdclark@gmail.com>
---
cmd/bootefi.c | 201 +++++++++++++-----------------------------
include/efi_loader.h | 5 +-
lib/efi_loader/efi_boottime.c | 36 ++++++++
lib/efi_loader/efi_net.c | 5 +-
4 files changed, 100 insertions(+), 147 deletions(-)
diff --git a/cmd/bootefi.c b/cmd/bootefi.c
index 3196d86040..0980088668 100644
--- a/cmd/bootefi.c
+++ b/cmd/bootefi.c
@@ -22,97 +22,14 @@ DECLARE_GLOBAL_DATA_PTR;
static uint8_t efi_obj_list_initalized;
-/*
- * When booting using the "bootefi" command, we don't know which
- * physical device the file came from. So we create a pseudo-device
- * called "bootefi" with the device path /bootefi.
- *
- * In addition to the originating device we also declare the file path
- * of "bootefi" based loads to be /bootefi.
- */
-static struct efi_device_path_file_path bootefi_image_path[] = {
- {
- .dp.type = DEVICE_PATH_TYPE_MEDIA_DEVICE,
- .dp.sub_type = DEVICE_PATH_SUB_TYPE_FILE_PATH,
- .dp.length = sizeof(bootefi_image_path[0]),
- .str = { 'b','o','o','t','e','f','i' },
- }, {
- .dp.type = DEVICE_PATH_TYPE_END,
- .dp.sub_type = DEVICE_PATH_SUB_TYPE_END,
- .dp.length = sizeof(bootefi_image_path[0]),
- }
-};
-
-static struct efi_device_path_file_path bootefi_device_path[] = {
- {
- .dp.type = DEVICE_PATH_TYPE_MEDIA_DEVICE,
- .dp.sub_type = DEVICE_PATH_SUB_TYPE_FILE_PATH,
- .dp.length = sizeof(bootefi_image_path[0]),
- .str = { 'b','o','o','t','e','f','i' },
- }, {
- .dp.type = DEVICE_PATH_TYPE_END,
- .dp.sub_type = DEVICE_PATH_SUB_TYPE_END,
- .dp.length = sizeof(bootefi_image_path[0]),
- }
-};
-
-/* The EFI loaded_image interface for the image executed via "bootefi" */
-static struct efi_loaded_image loaded_image_info = {
- .device_handle = bootefi_device_path,
- .file_path = bootefi_image_path,
-};
-
-/* The EFI object struct for the image executed via "bootefi" */
-static struct efi_object loaded_image_info_obj = {
- .handle = &loaded_image_info,
- .protocols = {
- {
- /*
- * When asking for the loaded_image interface, just
- * return handle which points to loaded_image_info
- */
- .guid = &efi_guid_loaded_image,
- .protocol_interface = &loaded_image_info,
- },
- {
- /*
- * When asking for the device path interface, return
- * bootefi_device_path
- */
- .guid = &efi_guid_device_path,
- .protocol_interface = bootefi_device_path,
- },
- {
- .guid = &efi_guid_console_control,
- .protocol_interface = (void *) &efi_console_control
- },
- {
- .guid = &efi_guid_device_path_to_text_protocol,
- .protocol_interface = (void *) &efi_device_path_to_text
- },
- },
-};
-
-/* The EFI object struct for the device the "bootefi" image was loaded from */
-static struct efi_object bootefi_device_obj = {
- .handle = bootefi_device_path,
- .protocols = {
- {
- /* When asking for the device path interface, return
- * bootefi_device_path */
- .guid = &efi_guid_device_path,
- .protocol_interface = bootefi_device_path
- }
- },
-};
+static struct efi_device_path *bootefi_image_path;
+static struct efi_device_path *bootefi_device_path;
/* Initialize and populate EFI object list */
static void efi_init_obj_list(void)
{
efi_obj_list_initalized = 1;
- list_add_tail(&loaded_image_info_obj.link, &efi_obj_list);
- list_add_tail(&bootefi_device_obj.link, &efi_obj_list);
efi_console_register();
#ifdef CONFIG_PARTITIONS
efi_disk_register();
@@ -121,13 +38,7 @@ static void efi_init_obj_list(void)
efi_gop_register();
#endif
#ifdef CONFIG_NET
- void *nethandle = loaded_image_info.device_handle;
- efi_net_register(&nethandle);
-
- if (!memcmp(bootefi_device_path[0].str, "N\0e\0t", 6))
- loaded_image_info.device_handle = nethandle;
- else
- loaded_image_info.device_handle = bootefi_device_path;
+ efi_net_register();
#endif
#ifdef CONFIG_GENERATE_SMBIOS_TABLE
efi_smbios_register();
@@ -210,14 +121,27 @@ static unsigned long efi_run_in_el2(asmlinkage ulong (*entry)(
* Load an EFI payload into a newly allocated piece of memory, register all
* EFI objects it would want to access and jump to it.
*/
-static unsigned long do_bootefi_exec(void *efi, void *fdt)
+static unsigned long do_bootefi_exec(void *efi, void *fdt,
+ struct efi_device_path *device_path,
+ struct efi_device_path *image_path)
{
+ struct efi_loaded_image loaded_image_info = {};
+ struct efi_object loaded_image_info_obj = {};
+ ulong ret;
+
ulong (*entry)(void *image_handle, struct efi_system_table *st)
asmlinkage;
ulong fdt_pages, fdt_size, fdt_start, fdt_end;
const efi_guid_t fdt_guid = EFI_FDT_GUID;
bootm_headers_t img = { 0 };
+ /* Initialize and populate EFI object list */
+ if (!efi_obj_list_initalized)
+ efi_init_obj_list();
+
+ efi_setup_loaded_image(&loaded_image_info, &loaded_image_info_obj,
+ device_path, image_path);
+
/*
* gd lives in a fixed register which may get clobbered while we execute
* the payload. So save it here and restore it on every callback entry
@@ -252,18 +176,18 @@ static unsigned long do_bootefi_exec(void *efi, void *fdt)
/* Load the EFI payload */
entry = efi_load_pe(efi, &loaded_image_info);
- if (!entry)
- return -ENOENT;
-
- /* Initialize and populate EFI object list */
- if (!efi_obj_list_initalized)
- efi_init_obj_list();
+ if (!entry) {
+ ret = -ENOENT;
+ goto exit;
+ }
/* Call our payload! */
debug("%s:%d Jumping to 0x%lx\n", __func__, __LINE__, (long)entry);
if (setjmp(&loaded_image_info.exit_jmp)) {
- return loaded_image_info.exit_status;
+ ret = loaded_image_info.exit_status;
+ EFI_EXIT(ret);
+ goto exit;
}
#ifdef CONFIG_ARM64
@@ -282,7 +206,13 @@ static unsigned long do_bootefi_exec(void *efi, void *fdt)
}
#endif
- return efi_do_enter(&loaded_image_info, &systab, entry);
+ ret = efi_do_enter(&loaded_image_info, &systab, entry);
+
+exit:
+ /* image has returned, loaded-image obj goes *poof*: */
+ list_del(&loaded_image_info_obj.link);
+
+ return ret;
}
@@ -315,7 +245,8 @@ static int do_bootefi(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
}
printf("## Starting EFI application at %08lx ...\n", addr);
- r = do_bootefi_exec((void *)addr, (void*)fdt_addr);
+ r = do_bootefi_exec((void *)addr, (void *)fdt_addr,
+ bootefi_device_path, bootefi_image_path);
printf("## Application terminated, r = %lu\n",
r & ~EFI_ERROR_MASK);
@@ -344,58 +275,44 @@ U_BOOT_CMD(
bootefi_help_text
);
-void efi_set_bootdev(const char *dev, const char *devnr, const char *path)
+static int parse_partnum(const char *devnr)
{
- __maybe_unused struct blk_desc *desc;
- char devname[32] = { 0 }; /* dp->str is u16[32] long */
- char *colon, *s;
-
-#if defined(CONFIG_BLK) || CONFIG_IS_ENABLED(ISO_PARTITION)
- desc = blk_get_dev(dev, simple_strtol(devnr, NULL, 10));
-#endif
-
-#ifdef CONFIG_BLK
- if (desc) {
- snprintf(devname, sizeof(devname), "%s", desc->bdev->name);
- } else
-#endif
-
- {
- /* Assemble the condensed device name we use in efi_disk.c */
- snprintf(devname, sizeof(devname), "%s%s", dev, devnr);
+ const char *str = strchr(devnr, ':');
+ if (str) {
+ str++;
+ return simple_strtoul(str, NULL, 16);
}
+ return 0;
+}
- colon = strchr(devname, ':');
-
-#if CONFIG_IS_ENABLED(ISO_PARTITION)
- /* For ISOs we create partition block devices */
- if (desc && (desc->type != DEV_TYPE_UNKNOWN) &&
- (desc->part_type == PART_TYPE_ISO)) {
- if (!colon)
- snprintf(devname, sizeof(devname), "%s:1", devname);
+void efi_set_bootdev(const char *dev, const char *devnr, const char *path)
+{
+ char filename[32] = { 0 }; /* dp->str is u16[32] long */
+ char *s;
- colon = NULL;
- }
-#endif
+ if (strcmp(dev, "Net")) {
+ struct blk_desc *desc;
+ int part;
- if (colon)
- *colon = '\0';
+ desc = blk_get_dev(dev, simple_strtol(devnr, NULL, 10));
+ part = parse_partnum(devnr);
- /* Patch bootefi_device_path to the target device */
- memset(bootefi_device_path[0].str, 0, sizeof(bootefi_device_path[0].str));
- ascii2unicode(bootefi_device_path[0].str, devname);
+ bootefi_device_path = efi_dp_from_part(desc, part);
+ } else {
+#ifdef CONFIG_NET
+ bootefi_device_path = efi_dp_from_eth();
+#endif
+ }
- /* Patch bootefi_image_path to the target file path */
- memset(bootefi_image_path[0].str, 0, sizeof(bootefi_image_path[0].str));
if (strcmp(dev, "Net")) {
/* Add leading / to fs paths, because they're absolute */
- snprintf(devname, sizeof(devname), "/%s", path);
+ snprintf(filename, sizeof(filename), "/%s", path);
} else {
- snprintf(devname, sizeof(devname), "%s", path);
+ snprintf(filename, sizeof(filename), "%s", path);
}
/* DOS style file path: */
- s = devname;
+ s = filename;
while ((s = strchr(s, '/')))
*s++ = '\\';
- ascii2unicode(bootefi_image_path[0].str, devname);
+ bootefi_image_path = efi_dp_from_file(NULL, 0, filename);
}
diff --git a/include/efi_loader.h b/include/efi_loader.h
index f39c2ee6da..ec8803f588 100644
--- a/include/efi_loader.h
+++ b/include/efi_loader.h
@@ -136,7 +136,7 @@ int efi_disk_register(void);
/* Called by bootefi to make GOP (graphical) interface available */
int efi_gop_register(void);
/* Called by bootefi to make the network interface available */
-int efi_net_register(void **handle);
+int efi_net_register(void);
/* Called by bootefi to make SMBIOS tables available */
void efi_smbios_register(void);
@@ -193,6 +193,9 @@ uint64_t efi_add_memory_map(uint64_t start, uint64_t pages, int memory_type,
int efi_memory_init(void);
/* Adds new or overrides configuration table entry to the system table */
efi_status_t efi_install_configuration_table(const efi_guid_t *guid, void *table);
+void efi_setup_loaded_image(struct efi_loaded_image *info, struct efi_object *obj,
+ struct efi_device_path *device_path,
+ struct efi_device_path *file_path);
#ifdef CONFIG_EFI_LOADER_BOUNCE_BUFFER
extern void *efi_bounce_buffer;
diff --git a/lib/efi_loader/efi_boottime.c b/lib/efi_loader/efi_boottime.c
index b962b62a97..837e61d8fe 100644
--- a/lib/efi_loader/efi_boottime.c
+++ b/lib/efi_loader/efi_boottime.c
@@ -726,6 +726,42 @@ static efi_status_t EFIAPI efi_install_configuration_table_ext(efi_guid_t *guid,
return EFI_EXIT(efi_install_configuration_table(guid, table));
}
+/* Initialize a loaded_image_info + loaded_image_info object with correct
+ * protocols, boot-device, etc.
+ */
+void efi_setup_loaded_image(struct efi_loaded_image *info, struct efi_object *obj,
+ struct efi_device_path *device_path,
+ struct efi_device_path *file_path)
+{
+ obj->handle = info;
+
+ /*
+ * When asking for the device path interface, return
+ * bootefi_device_path
+ */
+ obj->protocols[0].guid = &efi_guid_device_path;
+ obj->protocols[0].protocol_interface = device_path;
+
+ /*
+ * When asking for the loaded_image interface, just
+ * return handle which points to loaded_image_info
+ */
+ obj->protocols[1].guid = &efi_guid_loaded_image;
+ obj->protocols[1].protocol_interface = info;
+
+ obj->protocols[2].guid = &efi_guid_console_control;
+ obj->protocols[2].protocol_interface = (void *)&efi_console_control;
+
+ obj->protocols[3].guid = &efi_guid_device_path_to_text_protocol;
+ obj->protocols[3].protocol_interface =
+ (void *)&efi_device_path_to_text;
+
+ info->file_path = file_path;
+ info->device_handle = efi_dp_find_obj(device_path, NULL);
+
+ list_add_tail(&obj->link, &efi_obj_list);
+}
+
static efi_status_t EFIAPI efi_load_image(bool boot_policy,
efi_handle_t parent_image,
struct efi_device_path *file_path,
diff --git a/lib/efi_loader/efi_net.c b/lib/efi_loader/efi_net.c
index aa0618fd3a..91f1e4a69e 100644
--- a/lib/efi_loader/efi_net.c
+++ b/lib/efi_loader/efi_net.c
@@ -207,7 +207,7 @@ void efi_net_set_dhcp_ack(void *pkt, int len)
}
/* This gets called from do_bootefi_exec(). */
-int efi_net_register(void **handle)
+int efi_net_register(void)
{
struct efi_net_obj *netobj;
@@ -253,8 +253,5 @@ int efi_net_register(void **handle)
/* Hook net up to the device list */
list_add_tail(&netobj->parent.link, &efi_obj_list);
- if (handle)
- *handle = &netobj->net;
-
return 0;
}
--
2.13.5
^ permalink raw reply related [flat|nested] 46+ messages in thread* [U-Boot] [PATCH v2 11/21] efi_loader: add file/filesys support
2017-09-10 11:21 [U-Boot] [PATCH v2 00/21] efi_loader: enough UEFI for standard distro boot Rob Clark
` (18 preceding siblings ...)
2017-09-10 11:21 ` [U-Boot] [PATCH v2 10/21] efi_loader: refactor boot device and loaded_image handling Rob Clark
@ 2017-09-10 11:21 ` Rob Clark
2017-09-12 12:30 ` Simon Glass
2017-09-10 11:21 ` [U-Boot] [PATCH v2 12/21] efi_loader: support load_image() from a file-path Rob Clark
` (10 subsequent siblings)
30 siblings, 1 reply; 46+ messages in thread
From: Rob Clark @ 2017-09-10 11:21 UTC (permalink / raw)
To: u-boot
fallback.efi (and probably other things) use UEFI's simple-file-system
protocol and file support to search for OS's to boot.
Signed-off-by: Rob Clark <robdclark@gmail.com>
---
include/efi.h | 2 +
include/efi_api.h | 65 +++++
include/efi_loader.h | 13 +
lib/efi_loader/Makefile | 1 +
lib/efi_loader/efi_disk.c | 32 +++
lib/efi_loader/efi_file.c | 556 ++++++++++++++++++++++++++++++++++++++
lib/efi_loader/efi_image_loader.c | 3 +
7 files changed, 672 insertions(+)
create mode 100644 lib/efi_loader/efi_file.c
diff --git a/include/efi.h b/include/efi.h
index 87b0b43f20..ddd2b96417 100644
--- a/include/efi.h
+++ b/include/efi.h
@@ -81,6 +81,8 @@ typedef struct {
#define EFI_IP_ADDRESS_CONFLICT (EFI_ERROR_MASK | 34)
#define EFI_HTTP_ERROR (EFI_ERROR_MASK | 35)
+#define EFI_WARN_DELETE_FAILURE 2
+
typedef unsigned long efi_status_t;
typedef u64 efi_physical_addr_t;
typedef u64 efi_virtual_addr_t;
diff --git a/include/efi_api.h b/include/efi_api.h
index 0c36122107..1aae96355f 100644
--- a/include/efi_api.h
+++ b/include/efi_api.h
@@ -666,4 +666,69 @@ struct efi_pxe {
struct efi_pxe_mode *mode;
};
+#define EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_GUID \
+ EFI_GUID(0x964e5b22, 0x6459, 0x11d2, \
+ 0x8e, 0x39, 0x0, 0xa0, 0xc9, 0x69, 0x72, 0x3b)
+#define EFI_FILE_PROTOCOL_REVISION 0x00010000
+
+struct efi_file_handle {
+ u64 rev;
+ efi_status_t (EFIAPI *open)(struct efi_file_handle *file,
+ struct efi_file_handle **new_handle,
+ s16 *file_name, u64 open_mode, u64 attributes);
+ efi_status_t (EFIAPI *close)(struct efi_file_handle *file);
+ efi_status_t (EFIAPI *delete)(struct efi_file_handle *file);
+ efi_status_t (EFIAPI *read)(struct efi_file_handle *file,
+ u64 *buffer_size, void *buffer);
+ efi_status_t (EFIAPI *write)(struct efi_file_handle *file,
+ u64 *buffer_size, void *buffer);
+ efi_status_t (EFIAPI *getpos)(struct efi_file_handle *file,
+ u64 *pos);
+ efi_status_t (EFIAPI *setpos)(struct efi_file_handle *file,
+ u64 pos);
+ efi_status_t (EFIAPI *getinfo)(struct efi_file_handle *file,
+ efi_guid_t *info_type, u64 *buffer_size, void *buffer);
+ efi_status_t (EFIAPI *setinfo)(struct efi_file_handle *file,
+ efi_guid_t *info_type, u64 buffer_size, void *buffer);
+ efi_status_t (EFIAPI *flush)(struct efi_file_handle *file);
+};
+
+#define EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_GUID \
+ EFI_GUID(0x964e5b22, 0x6459, 0x11d2, \
+ 0x8e, 0x39, 0x0, 0xa0, 0xc9, 0x69, 0x72, 0x3b)
+#define EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_REVISION 0x00010000
+
+struct efi_simple_file_system_protocol {
+ u64 rev;
+ efi_status_t (EFIAPI *open_volume)(struct efi_simple_file_system_protocol *this,
+ struct efi_file_handle **root);
+};
+
+#define EFI_FILE_INFO_GUID \
+ EFI_GUID(0x9576e92, 0x6d3f, 0x11d2, \
+ 0x8e, 0x39, 0x0, 0xa0, 0xc9, 0x69, 0x72, 0x3b)
+
+#define EFI_FILE_MODE_READ 0x0000000000000001
+#define EFI_FILE_MODE_WRITE 0x0000000000000002
+#define EFI_FILE_MODE_CREATE 0x8000000000000000
+
+#define EFI_FILE_READ_ONLY 0x0000000000000001
+#define EFI_FILE_HIDDEN 0x0000000000000002
+#define EFI_FILE_SYSTEM 0x0000000000000004
+#define EFI_FILE_RESERVED 0x0000000000000008
+#define EFI_FILE_DIRECTORY 0x0000000000000010
+#define EFI_FILE_ARCHIVE 0x0000000000000020
+#define EFI_FILE_VALID_ATTR 0x0000000000000037
+
+struct efi_file_info {
+ u64 size;
+ u64 file_size;
+ u64 physical_size;
+ struct efi_time create_time;
+ struct efi_time last_access_time;
+ struct efi_time modification_time;
+ u64 attribute;
+ s16 file_name[0];
+};
+
#endif
diff --git a/include/efi_loader.h b/include/efi_loader.h
index ec8803f588..b0c1e8fb78 100644
--- a/include/efi_loader.h
+++ b/include/efi_loader.h
@@ -65,6 +65,8 @@ extern const efi_guid_t efi_guid_console_control;
extern const efi_guid_t efi_guid_device_path;
extern const efi_guid_t efi_guid_loaded_image;
extern const efi_guid_t efi_guid_device_path_to_text_protocol;
+extern const efi_guid_t efi_simple_file_system_protocol_guid;
+extern const efi_guid_t efi_file_info_guid;
extern unsigned int __efi_runtime_start, __efi_runtime_stop;
extern unsigned int __efi_runtime_rel_start, __efi_runtime_rel_stop;
@@ -140,6 +142,9 @@ int efi_net_register(void);
/* Called by bootefi to make SMBIOS tables available */
void efi_smbios_register(void);
+struct efi_simple_file_system_protocol *
+efi_fs_from_path(struct efi_device_path *fp);
+
/* Called by networking code to memorize the dhcp ack package */
void efi_net_set_dhcp_ack(void *pkt, int len);
@@ -168,6 +173,14 @@ efi_status_t efi_set_timer(struct efi_event *event, enum efi_timer_delay type,
/* Call this to signal an event */
void efi_signal_event(struct efi_event *event);
+/* open file system: */
+struct efi_simple_file_system_protocol *efi_simple_file_system(
+ struct blk_desc *desc, int part, struct efi_device_path *dp);
+
+/* open file from device-path: */
+struct efi_file_handle *efi_file_from_path(struct efi_device_path *fp);
+
+
/* Generic EFI memory allocator, call this to get memory */
void *efi_alloc(uint64_t len, int memory_type);
/* More specific EFI memory allocator, called by EFI payloads */
diff --git a/lib/efi_loader/Makefile b/lib/efi_loader/Makefile
index f35e5ce8a8..cce92cfeb5 100644
--- a/lib/efi_loader/Makefile
+++ b/lib/efi_loader/Makefile
@@ -16,6 +16,7 @@ always := $(efiprogs-y)
obj-$(CONFIG_CMD_BOOTEFI_HELLO) += helloworld_efi.o
obj-y += efi_image_loader.o efi_boottime.o efi_runtime.o efi_console.o
obj-y += efi_memory.o efi_device_path_to_text.o efi_device_path.o
+obj-y += efi_file.o
obj-$(CONFIG_LCD) += efi_gop.o
obj-$(CONFIG_DM_VIDEO) += efi_gop.o
obj-$(CONFIG_PARTITIONS) += efi_disk.o
diff --git a/lib/efi_loader/efi_disk.c b/lib/efi_loader/efi_disk.c
index 14f3e020c8..9805585eb1 100644
--- a/lib/efi_loader/efi_disk.c
+++ b/lib/efi_loader/efi_disk.c
@@ -31,6 +31,8 @@ struct efi_disk_obj {
struct efi_device_path *dp;
/* partition # */
unsigned part;
+ /* handle to filesys proto (for partition objects) */
+ struct efi_simple_file_system_protocol *volume;
/* Offset into disk for simple partitions */
lbaint_t offset;
/* Internal block device */
@@ -172,6 +174,28 @@ static const struct efi_block_io block_io_disk_template = {
.flush_blocks = &efi_disk_flush_blocks,
};
+/*
+ * Find filesystem from a device-path. The passed in path 'p' probably
+ * contains one or more /File(name) nodes, so the comparison stops at
+ * the first /File() node, and returns the pointer to that via 'rp'.
+ * This is mostly intended to be a helper to map a device-path to an
+ * efi_file_handle object.
+ */
+struct efi_simple_file_system_protocol *
+efi_fs_from_path(struct efi_device_path *fp)
+{
+ struct efi_object *efiobj;
+ struct efi_disk_obj *diskobj;
+
+ efiobj = efi_dp_find_obj(fp, NULL);
+ if (!efiobj)
+ return NULL;
+
+ diskobj = container_of(efiobj, struct efi_disk_obj, parent);
+
+ return diskobj->volume;
+}
+
static void efi_disk_add_dev(const char *name,
const char *if_typename,
struct blk_desc *desc,
@@ -194,6 +218,14 @@ static void efi_disk_add_dev(const char *name,
diskobj->parent.protocols[0].protocol_interface = &diskobj->ops;
diskobj->parent.protocols[1].guid = &efi_guid_device_path;
diskobj->parent.protocols[1].protocol_interface = diskobj->dp;
+ if (part >= 1) {
+ diskobj->volume = efi_simple_file_system(desc, part,
+ diskobj->dp);
+ diskobj->parent.protocols[2].guid =
+ &efi_simple_file_system_protocol_guid;
+ diskobj->parent.protocols[2].protocol_interface =
+ diskobj->volume;
+ }
diskobj->parent.handle = diskobj;
diskobj->ops = block_io_disk_template;
diskobj->ifname = if_typename;
diff --git a/lib/efi_loader/efi_file.c b/lib/efi_loader/efi_file.c
new file mode 100644
index 0000000000..118d83ad7c
--- /dev/null
+++ b/lib/efi_loader/efi_file.c
@@ -0,0 +1,556 @@
+/*
+ * EFI utils
+ *
+ * Copyright (c) 2017 Rob Clark
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <charset.h>
+#include <efi_loader.h>
+#include <malloc.h>
+#include <fs.h>
+
+struct file_system {
+ struct efi_simple_file_system_protocol base;
+ struct efi_device_path *dp;
+ struct blk_desc *desc;
+ int part;
+};
+#define to_fs(x) container_of(x, struct file_system, base)
+
+struct file_handle {
+ struct efi_file_handle base;
+ struct file_system *fs;
+ loff_t offset; /* current file position/cursor */
+ int isdir;
+
+ /* for reading a directory: */
+ struct fs_dir_stream *dirs;
+ struct fs_dirent *dent;
+
+ char path[0];
+};
+#define to_fh(x) container_of(x, struct file_handle, base)
+
+static const struct efi_file_handle efi_file_handle_protocol;
+
+static char *basename(struct file_handle *fh)
+{
+ char *s = strrchr(fh->path, '/');
+ if (s)
+ return s + 1;
+ return fh->path;
+}
+
+static int set_blk_dev(struct file_handle *fh)
+{
+ return fs_set_blk_dev_with_part(fh->fs->desc, fh->fs->part);
+}
+
+static int is_dir(struct file_handle *fh)
+{
+ struct fs_dir_stream *dirs;
+
+ set_blk_dev(fh);
+ dirs = fs_opendir(fh->path);
+ if (!dirs)
+ return 0;
+
+ fs_closedir(dirs);
+
+ return 1;
+}
+
+static int sanitize_path(char *path)
+{
+ char *p ;
+
+ /* backslash to slash: */
+ p = path;
+ while ((p = strchr(p, '\\')))
+ *p++ = '/';
+
+ /* handle double-slashes: */
+ p = path;
+ while ((p = strstr(p, "//"))) {
+ char *src = p + 1;
+ memmove(p, src, strlen(src) + 1);
+ }
+
+ /* handle extra /.'s */
+ p = path;
+ while ((p = strstr(p, "/."))) {
+ /*
+ * You'd be tempted to do this *after* handling ".."s
+ * below to avoid having to check if "/." is start of
+ * a "/..", but that won't have the correct results..
+ * for example, "/foo/./../bar" would get resolved to
+ * "/foo/bar" if you did these two passes in the other
+ * order
+ */
+ if (p[2] == '.') {
+ p += 2;
+ continue;
+ }
+ char *src = p + 2;
+ memmove(p, src, strlen(src) + 1);
+ }
+
+ /* handle extra /..'s: */
+ p = path;
+ while ((p = strstr(p, "/.."))) {
+ char *src = p + 3;
+
+ p--;
+
+ /* find beginning of previous path entry: */
+ while (true) {
+ if (p < path)
+ return -1;
+ if (*p == '/')
+ break;
+ p--;
+ }
+
+ memmove(p, src, strlen(src) + 1);
+ }
+
+ return 0;
+}
+
+/* NOTE: despite what you would expect, 'file_name' is actually a path.
+ * With windoze style backlashes, ofc.
+ */
+static struct efi_file_handle *file_open(struct file_system *fs,
+ struct file_handle *parent, s16 *file_name, u64 mode)
+{
+ struct file_handle *fh;
+ char f0[MAX_UTF8_PER_UTF16] = {0};
+ int plen = 0;
+ int flen = 0;
+
+ if (file_name) {
+ utf16_to_utf8((u8 *)f0, (u16 *)file_name, 1);
+ flen = utf16_strlen((u16 *)file_name);
+ }
+
+ /* we could have a parent, but also an absolute path: */
+ if (f0[0] == '\\') {
+ plen = 0;
+ } else if (parent) {
+ plen = strlen(parent->path) + 1;
+ }
+
+ /* +2 is for null and '/' */
+ fh = calloc(1, sizeof(*fh) + plen + (flen * MAX_UTF8_PER_UTF16) + 2);
+
+ fh->base = efi_file_handle_protocol;
+ fh->fs = fs;
+
+ if (parent) {
+ char *p = fh->path;
+
+ if (plen > 0) {
+ strcpy(p, parent->path);
+ p += plen - 1;
+ *p++ = '/';
+ }
+
+ utf16_to_utf8((u8 *)p, (u16 *)file_name, flen);
+
+ if (sanitize_path(fh->path))
+ goto error;
+
+ /* check if file exists: */
+ if (set_blk_dev(fh))
+ goto error;
+
+ if (!((mode & EFI_FILE_MODE_CREATE) || fs_exists(fh->path)))
+ goto error;
+
+ /* figure out if file is a directory: */
+ fh->isdir = is_dir(fh);
+ } else {
+ fh->isdir = 1;
+ strcpy(fh->path, "");
+ }
+
+ return &fh->base;
+
+error:
+ free(fh);
+ return NULL;
+}
+
+static efi_status_t EFIAPI efi_file_open(struct efi_file_handle *file,
+ struct efi_file_handle **new_handle,
+ s16 *file_name, u64 open_mode, u64 attributes)
+{
+ struct file_handle *fh = to_fh(file);
+
+ EFI_ENTRY("%p, %p, \"%ls\", %llx, %llu", file, new_handle, file_name,
+ open_mode, attributes);
+
+ *new_handle = file_open(fh->fs, fh, file_name, open_mode);
+ if (!*new_handle)
+ return EFI_EXIT(EFI_NOT_FOUND);
+
+ return EFI_EXIT(EFI_SUCCESS);
+}
+
+static efi_status_t file_close(struct file_handle *fh)
+{
+ fs_closedir(fh->dirs);
+ free(fh);
+ return EFI_SUCCESS;
+}
+
+static efi_status_t EFIAPI efi_file_close(struct efi_file_handle *file)
+{
+ struct file_handle *fh = to_fh(file);
+ EFI_ENTRY("%p", file);
+ return EFI_EXIT(file_close(fh));
+}
+
+static efi_status_t EFIAPI efi_file_delete(struct efi_file_handle *file)
+{
+ struct file_handle *fh = to_fh(file);
+ EFI_ENTRY("%p", file);
+ file_close(fh);
+ return EFI_EXIT(EFI_WARN_DELETE_FAILURE);
+}
+
+static efi_status_t file_read(struct file_handle *fh, u64 *buffer_size,
+ void *buffer)
+{
+ loff_t actread;
+
+ if (fs_read(fh->path, (ulong)buffer, fh->offset,
+ *buffer_size, &actread))
+ return EFI_DEVICE_ERROR;
+
+ *buffer_size = actread;
+ fh->offset += actread;
+
+ return EFI_SUCCESS;
+}
+
+static efi_status_t dir_read(struct file_handle *fh, u64 *buffer_size,
+ void *buffer)
+{
+ struct efi_file_info *info = buffer;
+ struct fs_dirent *dent;
+ unsigned required_size;
+
+ if (!fh->dirs) {
+ assert(fh->offset == 0);
+ fh->dirs = fs_opendir(fh->path);
+ if (!fh->dirs)
+ return EFI_DEVICE_ERROR;
+ }
+
+ /*
+ * So this is a bit awkward. Since fs layer is stateful and we
+ * can't rewind an entry, in the EFI_BUFFER_TOO_SMALL case below
+ * we might have to return without consuming the dent.. so we
+ * have to stash it for next call.
+ */
+ if (fh->dent) {
+ dent = fh->dent;
+ fh->dent = NULL;
+ } else {
+ dent = fs_readdir(fh->dirs);
+ }
+
+
+ if (!dent) {
+ /* no more files in directory: */
+ /* workaround shim.efi bug/quirk.. as find_boot_csv()
+ * loops through directory contents, it initially calls
+ * read w/ zero length buffer to find out how much mem
+ * to allocate for the EFI_FILE_INFO, then allocates,
+ * and then calls a 2nd time. If we return size of
+ * zero the first time, it happily passes that to
+ * AllocateZeroPool(), and when that returns NULL it
+ * thinks it is EFI_OUT_OF_RESOURCES. So on first
+ * call return a non-zero size:
+ */
+ if (*buffer_size == 0)
+ *buffer_size = sizeof(*info);
+ else
+ *buffer_size = 0;
+ return EFI_SUCCESS;
+ }
+
+ /* check buffer size: */
+ required_size = sizeof(*info) + 2 * (strlen(dent->name) + 1);
+ if (*buffer_size < required_size) {
+ *buffer_size = required_size;
+ fh->dent = dent;
+ return EFI_BUFFER_TOO_SMALL;
+ }
+
+ *buffer_size = required_size;
+ memset(info, 0, required_size);
+
+ info->size = required_size;
+ info->file_size = dent->size;
+ info->physical_size = dent->size;
+
+ if (dent->type == FS_DT_DIR)
+ info->attribute |= EFI_FILE_DIRECTORY;
+
+ ascii2unicode((u16 *)info->file_name, dent->name);
+
+ fh->offset++;
+
+ return EFI_SUCCESS;
+}
+
+static efi_status_t EFIAPI efi_file_read(struct efi_file_handle *file,
+ u64 *buffer_size, void *buffer)
+{
+ struct file_handle *fh = to_fh(file);
+ efi_status_t ret = EFI_SUCCESS;
+
+ EFI_ENTRY("%p, %p, %p", file, buffer_size, buffer);
+
+ if (set_blk_dev(fh)) {
+ ret = EFI_DEVICE_ERROR;
+ goto error;
+ }
+
+ if (fh->isdir)
+ ret = dir_read(fh, buffer_size, buffer);
+ else
+ ret = file_read(fh, buffer_size, buffer);
+
+error:
+ return EFI_EXIT(ret);
+}
+
+static efi_status_t EFIAPI efi_file_write(struct efi_file_handle *file,
+ u64 *buffer_size, void *buffer)
+{
+ struct file_handle *fh = to_fh(file);
+ efi_status_t ret = EFI_SUCCESS;
+ loff_t actwrite;
+
+ EFI_ENTRY("%p, %p, %p", file, buffer_size, buffer);
+
+ if (set_blk_dev(fh)) {
+ ret = EFI_DEVICE_ERROR;
+ goto error;
+ }
+
+ if (fs_write(fh->path, (ulong)buffer, fh->offset, *buffer_size,
+ &actwrite)) {
+ ret = EFI_DEVICE_ERROR;
+ goto error;
+ }
+
+ *buffer_size = actwrite;
+ fh->offset += actwrite;
+
+error:
+ return EFI_EXIT(ret);
+}
+
+static efi_status_t EFIAPI efi_file_getpos(struct efi_file_handle *file,
+ u64 *pos)
+{
+ struct file_handle *fh = to_fh(file);
+ EFI_ENTRY("%p, %p", file, pos);
+ *pos = fh->offset;
+ return EFI_EXIT(EFI_SUCCESS);
+}
+
+static efi_status_t EFIAPI efi_file_setpos(struct efi_file_handle *file,
+ u64 pos)
+{
+ struct file_handle *fh = to_fh(file);
+ efi_status_t ret = EFI_SUCCESS;
+
+ EFI_ENTRY("%p, %llu", file, pos);
+
+ if (fh->isdir) {
+ if (pos != 0) {
+ ret = EFI_UNSUPPORTED;
+ goto error;
+ }
+ fs_closedir(fh->dirs);
+ fh->dirs = NULL;
+ }
+
+ if (pos == ~0ULL) {
+ loff_t file_size;
+
+ if (set_blk_dev(fh)) {
+ ret = EFI_DEVICE_ERROR;
+ goto error;
+ }
+
+ if (fs_size(fh->path, &file_size)) {
+ ret = EFI_DEVICE_ERROR;
+ goto error;
+ }
+
+ pos = file_size;
+ }
+
+ fh->offset = pos;
+
+error:
+ return EFI_EXIT(ret);
+}
+
+static efi_status_t EFIAPI efi_file_getinfo(struct efi_file_handle *file,
+ efi_guid_t *info_type, u64 *buffer_size, void *buffer)
+{
+ struct file_handle *fh = to_fh(file);
+ efi_status_t ret = EFI_SUCCESS;
+
+ EFI_ENTRY("%p, %p, %p, %p", file, info_type, buffer_size, buffer);
+
+ if (!guidcmp(info_type, &efi_file_info_guid)) {
+ struct efi_file_info *info = buffer;
+ char *filename = basename(fh);
+ unsigned required_size;
+ loff_t file_size;
+
+ /* check buffer size: */
+ required_size = sizeof(*info) + 2 * (strlen(filename) + 1);
+ if (*buffer_size < required_size) {
+ *buffer_size = required_size;
+ ret = EFI_BUFFER_TOO_SMALL;
+ goto error;
+ }
+
+ if (set_blk_dev(fh)) {
+ ret = EFI_DEVICE_ERROR;
+ goto error;
+ }
+
+ if (fs_size(fh->path, &file_size)) {
+ ret = EFI_DEVICE_ERROR;
+ goto error;
+ }
+
+ memset(info, 0, required_size);
+
+ info->size = required_size;
+ info->file_size = file_size;
+ info->physical_size = file_size;
+
+ if (fh->isdir)
+ info->attribute |= EFI_FILE_DIRECTORY;
+
+ ascii2unicode((u16 *)info->file_name, filename);
+ } else {
+ ret = EFI_UNSUPPORTED;
+ }
+
+error:
+ return EFI_EXIT(ret);
+}
+
+static efi_status_t EFIAPI efi_file_setinfo(struct efi_file_handle *file,
+ efi_guid_t *info_type, u64 buffer_size, void *buffer)
+{
+ EFI_ENTRY("%p, %p, %llu, %p", file, info_type, buffer_size, buffer);
+ return EFI_EXIT(EFI_UNSUPPORTED);
+}
+
+static efi_status_t EFIAPI efi_file_flush(struct efi_file_handle *file)
+{
+ EFI_ENTRY("%p", file);
+ return EFI_EXIT(EFI_SUCCESS);
+}
+
+static const struct efi_file_handle efi_file_handle_protocol = {
+ .rev = EFI_FILE_PROTOCOL_REVISION,
+ .open = efi_file_open,
+ .close = efi_file_close,
+ .delete = efi_file_delete,
+ .read = efi_file_read,
+ .write = efi_file_write,
+ .getpos = efi_file_getpos,
+ .setpos = efi_file_setpos,
+ .getinfo = efi_file_getinfo,
+ .setinfo = efi_file_setinfo,
+ .flush = efi_file_flush,
+};
+
+struct efi_file_handle *efi_file_from_path(struct efi_device_path *fp)
+{
+ struct efi_simple_file_system_protocol *v;
+ struct efi_file_handle *f;
+ efi_status_t ret;
+
+ v = efi_fs_from_path(fp);
+ if (!v)
+ return NULL;
+
+ EFI_CALL(ret = v->open_volume(v, &f));
+ if (ret != EFI_SUCCESS)
+ return NULL;
+
+ /* skip over device-path nodes before the file path: */
+ while (fp && !EFI_DP_TYPE(fp, MEDIA_DEVICE, FILE_PATH))
+ fp = efi_dp_next(fp);
+
+ while (fp) {
+ struct efi_device_path_file_path *fdp =
+ container_of(fp, struct efi_device_path_file_path, dp);
+ struct efi_file_handle *f2;
+
+ if (!EFI_DP_TYPE(fp, MEDIA_DEVICE, FILE_PATH)) {
+ printf("bad file path!\n");
+ f->close(f);
+ return NULL;
+ }
+
+ EFI_CALL(ret = f->open(f, &f2, (s16 *)fdp->str,
+ EFI_FILE_MODE_READ, 0));
+ if (ret != EFI_SUCCESS)
+ return NULL;
+
+ fp = efi_dp_next(fp);
+
+ EFI_CALL(f->close(f));
+ f = f2;
+ }
+
+ return f;
+}
+
+static efi_status_t EFIAPI
+efi_open_volume(struct efi_simple_file_system_protocol *this,
+ struct efi_file_handle **root)
+{
+ struct file_system *fs = to_fs(this);
+
+ EFI_ENTRY("%p, %p", this, root);
+
+ *root = file_open(fs, NULL, NULL, 0);
+
+ return EFI_EXIT(EFI_SUCCESS);
+}
+
+struct efi_simple_file_system_protocol *
+efi_simple_file_system(struct blk_desc *desc, int part,
+ struct efi_device_path *dp)
+{
+ struct file_system *fs;
+
+ fs = calloc(1, sizeof(*fs));
+ fs->base.rev = EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_REVISION;
+ fs->base.open_volume = efi_open_volume;
+ fs->desc = desc;
+ fs->part = part;
+ fs->dp = dp;
+
+ return &fs->base;
+}
diff --git a/lib/efi_loader/efi_image_loader.c b/lib/efi_loader/efi_image_loader.c
index f961407f50..469acae082 100644
--- a/lib/efi_loader/efi_image_loader.c
+++ b/lib/efi_loader/efi_image_loader.c
@@ -17,6 +17,9 @@ DECLARE_GLOBAL_DATA_PTR;
const efi_guid_t efi_guid_device_path = DEVICE_PATH_GUID;
const efi_guid_t efi_guid_loaded_image = LOADED_IMAGE_GUID;
+const efi_guid_t efi_simple_file_system_protocol_guid =
+ EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_GUID;
+const efi_guid_t efi_file_info_guid = EFI_FILE_INFO_GUID;
static efi_status_t efi_loader_relocate(const IMAGE_BASE_RELOCATION *rel,
unsigned long rel_size, void *efi_reloc)
--
2.13.5
^ permalink raw reply related [flat|nested] 46+ messages in thread* [U-Boot] [PATCH v2 11/21] efi_loader: add file/filesys support
2017-09-10 11:21 ` [U-Boot] [PATCH v2 11/21] efi_loader: add file/filesys support Rob Clark
@ 2017-09-12 12:30 ` Simon Glass
0 siblings, 0 replies; 46+ messages in thread
From: Simon Glass @ 2017-09-12 12:30 UTC (permalink / raw)
To: u-boot
On 10 September 2017 at 05:21, Rob Clark <robdclark@gmail.com> wrote:
> fallback.efi (and probably other things) use UEFI's simple-file-system
> protocol and file support to search for OS's to boot.
>
> Signed-off-by: Rob Clark <robdclark@gmail.com>
> ---
> include/efi.h | 2 +
> include/efi_api.h | 65 +++++
> include/efi_loader.h | 13 +
> lib/efi_loader/Makefile | 1 +
> lib/efi_loader/efi_disk.c | 32 +++
> lib/efi_loader/efi_file.c | 556 ++++++++++++++++++++++++++++++++++++++
> lib/efi_loader/efi_image_loader.c | 3 +
> 7 files changed, 672 insertions(+)
> create mode 100644 lib/efi_loader/efi_file.c
What does sanitize_path() do? Please add a comment.
How do we test all this code?
^ permalink raw reply [flat|nested] 46+ messages in thread
* [U-Boot] [PATCH v2 12/21] efi_loader: support load_image() from a file-path
2017-09-10 11:21 [U-Boot] [PATCH v2 00/21] efi_loader: enough UEFI for standard distro boot Rob Clark
` (19 preceding siblings ...)
2017-09-10 11:21 ` [U-Boot] [PATCH v2 11/21] efi_loader: add file/filesys support Rob Clark
@ 2017-09-10 11:21 ` Rob Clark
2017-09-10 11:21 ` [U-Boot] [PATCH v2 13/21] efi_loader: make pool allocations cacheline aligned Rob Clark
` (9 subsequent siblings)
30 siblings, 0 replies; 46+ messages in thread
From: Rob Clark @ 2017-09-10 11:21 UTC (permalink / raw)
To: u-boot
Previously we only supported the case when the EFI application loaded
the image into memory for us. But fallback.efi does not do this.
Signed-off-by: Rob Clark <robdclark@gmail.com>
---
lib/efi_loader/efi_boottime.c | 85 +++++++++++++++++++++++++++++++++++--------
1 file changed, 70 insertions(+), 15 deletions(-)
diff --git a/lib/efi_loader/efi_boottime.c b/lib/efi_loader/efi_boottime.c
index 837e61d8fe..ec40f41bcb 100644
--- a/lib/efi_loader/efi_boottime.c
+++ b/lib/efi_loader/efi_boottime.c
@@ -762,6 +762,47 @@ void efi_setup_loaded_image(struct efi_loaded_image *info, struct efi_object *ob
list_add_tail(&obj->link, &efi_obj_list);
}
+static efi_status_t load_image_from_path(struct efi_device_path *file_path,
+ void **buffer)
+{
+ struct efi_file_info *info = NULL;
+ struct efi_file_handle *f;
+ static efi_status_t ret;
+ uint64_t bs;
+
+ f = efi_file_from_path(file_path);
+ if (!f)
+ return EFI_DEVICE_ERROR;
+
+ bs = 0;
+ EFI_CALL(ret = f->getinfo(f, (efi_guid_t *)&efi_file_info_guid,
+ &bs, info));
+ if (ret == EFI_BUFFER_TOO_SMALL) {
+ info = malloc(bs);
+ EFI_CALL(ret = f->getinfo(f, (efi_guid_t *)&efi_file_info_guid,
+ &bs, info));
+ }
+ if (ret != EFI_SUCCESS)
+ goto error;
+
+ ret = efi_allocate_pool(EFI_LOADER_DATA, info->file_size, buffer);
+ if (ret)
+ goto error;
+
+ EFI_CALL(ret = f->read(f, &info->file_size, *buffer));
+
+error:
+ free(info);
+ EFI_CALL(f->close(f));
+
+ if (ret != EFI_SUCCESS) {
+ efi_free_pool(*buffer);
+ *buffer = NULL;
+ }
+
+ return ret;
+}
+
static efi_status_t EFIAPI efi_load_image(bool boot_policy,
efi_handle_t parent_image,
struct efi_device_path *file_path,
@@ -769,25 +810,40 @@ static efi_status_t EFIAPI efi_load_image(bool boot_policy,
unsigned long source_size,
efi_handle_t *image_handle)
{
- static struct efi_object loaded_image_info_obj = {
- .protocols = {
- {
- .guid = &efi_guid_loaded_image,
- },
- },
- };
struct efi_loaded_image *info;
struct efi_object *obj;
EFI_ENTRY("%d, %p, %p, %p, %ld, %p", boot_policy, parent_image,
file_path, source_buffer, source_size, image_handle);
- info = malloc(sizeof(*info));
- loaded_image_info_obj.protocols[0].protocol_interface = info;
- obj = malloc(sizeof(loaded_image_info_obj));
- memset(info, 0, sizeof(*info));
- memcpy(obj, &loaded_image_info_obj, sizeof(loaded_image_info_obj));
- obj->handle = info;
- info->file_path = file_path;
+
+ info = calloc(1, sizeof(*info));
+ obj = calloc(1, sizeof(*obj));
+
+ if (!source_buffer) {
+ struct efi_device_path *dp, *fp;
+ efi_status_t ret;
+
+ ret = load_image_from_path(file_path, &source_buffer);
+ if (ret != EFI_SUCCESS) {
+ free(info);
+ free(obj);
+ return EFI_EXIT(ret);
+ }
+
+ /*
+ * split file_path which contains both the device and
+ * file parts:
+ */
+ efi_dp_split_file_path(file_path, &dp, &fp);
+
+ efi_setup_loaded_image(info, obj, dp, fp);
+ } else {
+ /* In this case, file_path is the "device" path, ie.
+ * something like a HARDWARE_DEVICE:MEMORY_MAPPED
+ */
+ efi_setup_loaded_image(info, obj, file_path, NULL);
+ }
+
info->reserved = efi_load_pe(source_buffer, info);
if (!info->reserved) {
free(info);
@@ -796,7 +852,6 @@ static efi_status_t EFIAPI efi_load_image(bool boot_policy,
}
*image_handle = info;
- list_add_tail(&obj->link, &efi_obj_list);
return EFI_EXIT(EFI_SUCCESS);
}
--
2.13.5
^ permalink raw reply related [flat|nested] 46+ messages in thread* [U-Boot] [PATCH v2 13/21] efi_loader: make pool allocations cacheline aligned
2017-09-10 11:21 [U-Boot] [PATCH v2 00/21] efi_loader: enough UEFI for standard distro boot Rob Clark
` (20 preceding siblings ...)
2017-09-10 11:21 ` [U-Boot] [PATCH v2 12/21] efi_loader: support load_image() from a file-path Rob Clark
@ 2017-09-10 11:21 ` Rob Clark
2017-09-10 11:21 ` [U-Boot] [PATCH v2 14/21] efi_loader: efi variable support Rob Clark
` (8 subsequent siblings)
30 siblings, 0 replies; 46+ messages in thread
From: Rob Clark @ 2017-09-10 11:21 UTC (permalink / raw)
To: u-boot
This avoids printf() spam about file reads (such as loading an image)
into unaligned buffers (and the associated memcpy()). And generally
seems like a good idea.
Signed-off-by: Rob Clark <robdclark@gmail.com>
---
lib/efi_loader/efi_memory.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/lib/efi_loader/efi_memory.c b/lib/efi_loader/efi_memory.c
index 9e079f1fa3..1f0b9d0449 100644
--- a/lib/efi_loader/efi_memory.c
+++ b/lib/efi_loader/efi_memory.c
@@ -43,7 +43,7 @@ void *efi_bounce_buffer;
*/
struct efi_pool_allocation {
u64 num_pages;
- char data[];
+ char data[] __attribute__((aligned(ARCH_DMA_MINALIGN)));
};
/*
@@ -356,7 +356,8 @@ efi_status_t efi_allocate_pool(int pool_type, unsigned long size,
{
efi_status_t r;
efi_physical_addr_t t;
- u64 num_pages = (size + sizeof(u64) + EFI_PAGE_MASK) >> EFI_PAGE_SHIFT;
+ u64 num_pages = (size + sizeof(struct efi_pool_allocation) +
+ EFI_PAGE_MASK) >> EFI_PAGE_SHIFT;
if (size == 0) {
*buffer = NULL;
--
2.13.5
^ permalink raw reply related [flat|nested] 46+ messages in thread* [U-Boot] [PATCH v2 14/21] efi_loader: efi variable support
2017-09-10 11:21 [U-Boot] [PATCH v2 00/21] efi_loader: enough UEFI for standard distro boot Rob Clark
` (21 preceding siblings ...)
2017-09-10 11:21 ` [U-Boot] [PATCH v2 13/21] efi_loader: make pool allocations cacheline aligned Rob Clark
@ 2017-09-10 11:21 ` Rob Clark
2017-09-12 12:30 ` Simon Glass
2017-09-10 11:21 ` [U-Boot] [PATCH v2 15/21] efi_loader: add bootmgr Rob Clark
` (7 subsequent siblings)
30 siblings, 1 reply; 46+ messages in thread
From: Rob Clark @ 2017-09-10 11:21 UTC (permalink / raw)
To: u-boot
Add EFI variable support, mapping to u-boot environment variables.
Variables are pretty important for setting up boot order, among other
things. If the board supports saveenv, then it will be called in
ExitBootServices() to persist variables set by the efi payload. (For
example, fallback.efi configuring BootOrder and BootXXXX load-option
variables.)
Variables are *not* currently exposed at runtime, post ExitBootServices.
On boards without a dedicated device for storage, which the loaded OS
is not trying to also use, this is rather tricky. One idea, at least
for boards that can persist RAM across reboot, is to keep a "journal"
of modified variables in RAM, and then turn halt into a reboot into
u-boot, plus store variables, plus halt. Whatever the solution, it
likely involves some per-board support.
Mapping between EFI variables and u-boot variables:
efi_$guid_$varname = {attributes}(type)value
For example:
efi_8be4df61-93ca-11d2-aa0d-00e098032b8c_OsIndicationsSupported=
"{ro,boot,run}(blob)0000000000000000"
efi_8be4df61-93ca-11d2-aa0d-00e098032b8c_BootOrder=
"(blob)00010000"
The attributes are a comma separated list of these possible
attributes:
+ ro - read-only
+ boot - boot-services access
+ run - runtime access
NOTE: with current implementation, no variables are available after
ExitBootServices, and all are persisted (if possible).
If not specified, the attributes default to "{boot}".
The required type is one of:
+ utf8 - raw utf8 string
+ blob - arbitrary length hex string
Signed-off-by: Rob Clark <robdclark@gmail.com>
---
cmd/bootefi.c | 4 +
include/efi.h | 19 +++
include/efi_loader.h | 10 ++
lib/efi_loader/Makefile | 2 +-
lib/efi_loader/efi_boottime.c | 6 +
lib/efi_loader/efi_runtime.c | 17 ++-
lib/efi_loader/efi_variable.c | 335 ++++++++++++++++++++++++++++++++++++++++++
7 files changed, 388 insertions(+), 5 deletions(-)
create mode 100644 lib/efi_loader/efi_variable.c
diff --git a/cmd/bootefi.c b/cmd/bootefi.c
index 0980088668..d3ae33e25b 100644
--- a/cmd/bootefi.c
+++ b/cmd/bootefi.c
@@ -181,6 +181,10 @@ static unsigned long do_bootefi_exec(void *efi, void *fdt,
goto exit;
}
+ /* we don't support much: */
+ env_set("efi_8be4df61-93ca-11d2-aa0d-00e098032b8c_OsIndicationsSupported",
+ "{ro,boot}(blob)0000000000000000");
+
/* Call our payload! */
debug("%s:%d Jumping to 0x%lx\n", __func__, __LINE__, (long)entry);
diff --git a/include/efi.h b/include/efi.h
index ddd2b96417..04e83220b4 100644
--- a/include/efi.h
+++ b/include/efi.h
@@ -324,6 +324,25 @@ extern char image_base[];
/* Start and end of U-Boot image (for payload) */
extern char _binary_u_boot_bin_start[], _binary_u_boot_bin_end[];
+/*
+ * Variable Attributes
+ */
+#define EFI_VARIABLE_NON_VOLATILE 0x0000000000000001
+#define EFI_VARIABLE_BOOTSERVICE_ACCESS 0x0000000000000002
+#define EFI_VARIABLE_RUNTIME_ACCESS 0x0000000000000004
+#define EFI_VARIABLE_HARDWARE_ERROR_RECORD 0x0000000000000008
+#define EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS 0x0000000000000010
+#define EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS 0x0000000000000020
+#define EFI_VARIABLE_APPEND_WRITE 0x0000000000000040
+
+#define EFI_VARIABLE_MASK (EFI_VARIABLE_NON_VOLATILE | \
+ EFI_VARIABLE_BOOTSERVICE_ACCESS | \
+ EFI_VARIABLE_RUNTIME_ACCESS | \
+ EFI_VARIABLE_HARDWARE_ERROR_RECORD | \
+ EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS | \
+ EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS | \
+ EFI_VARIABLE_APPEND_WRITE)
+
/**
* efi_get_sys_table() - Get access to the main EFI system table
*
diff --git a/include/efi_loader.h b/include/efi_loader.h
index b0c1e8fb78..9eee62dc9c 100644
--- a/include/efi_loader.h
+++ b/include/efi_loader.h
@@ -277,6 +277,16 @@ efi_status_t __efi_runtime EFIAPI efi_get_time(
struct efi_time_cap *capabilities);
void efi_get_time_init(void);
+efi_status_t EFIAPI efi_get_variable(s16 *variable_name,
+ efi_guid_t *vendor, u32 *attributes,
+ unsigned long *data_size, void *data);
+efi_status_t EFIAPI efi_get_next_variable(
+ unsigned long *variable_name_size,
+ s16 *variable_name, efi_guid_t *vendor);
+efi_status_t EFIAPI efi_set_variable(s16 *variable_name,
+ efi_guid_t *vendor, u32 attributes,
+ unsigned long data_size, void *data);
+
#else /* defined(EFI_LOADER) && !defined(CONFIG_SPL_BUILD) */
/* Without CONFIG_EFI_LOADER we don't have a runtime section, stub it out */
diff --git a/lib/efi_loader/Makefile b/lib/efi_loader/Makefile
index cce92cfeb5..f58cb13337 100644
--- a/lib/efi_loader/Makefile
+++ b/lib/efi_loader/Makefile
@@ -16,7 +16,7 @@ always := $(efiprogs-y)
obj-$(CONFIG_CMD_BOOTEFI_HELLO) += helloworld_efi.o
obj-y += efi_image_loader.o efi_boottime.o efi_runtime.o efi_console.o
obj-y += efi_memory.o efi_device_path_to_text.o efi_device_path.o
-obj-y += efi_file.o
+obj-y += efi_file.o efi_variable.o
obj-$(CONFIG_LCD) += efi_gop.o
obj-$(CONFIG_DM_VIDEO) += efi_gop.o
obj-$(CONFIG_PARTITIONS) += efi_disk.o
diff --git a/lib/efi_loader/efi_boottime.c b/lib/efi_loader/efi_boottime.c
index ec40f41bcb..c406ff82ff 100644
--- a/lib/efi_loader/efi_boottime.c
+++ b/lib/efi_loader/efi_boottime.c
@@ -8,6 +8,7 @@
#include <common.h>
#include <efi_loader.h>
+#include <environment.h>
#include <malloc.h>
#include <asm/global_data.h>
#include <libfdt_env.h>
@@ -942,6 +943,11 @@ static efi_status_t EFIAPI efi_exit_boot_services(void *image_handle,
{
EFI_ENTRY("%p, %ld", image_handle, map_key);
+#if defined(CONFIG_CMD_SAVEENV) && !defined(CONFIG_ENV_IS_NOWHERE)
+ /* save any EFI variables that have been written: */
+ env_save();
+#endif
+
board_quiesce_devices();
/* Fix up caches for EFI payloads if necessary */
diff --git a/lib/efi_loader/efi_runtime.c b/lib/efi_loader/efi_runtime.c
index ad7f3754bd..2f95c766ac 100644
--- a/lib/efi_loader/efi_runtime.c
+++ b/lib/efi_loader/efi_runtime.c
@@ -184,7 +184,16 @@ static const struct efi_runtime_detach_list_struct efi_runtime_detach_list[] = {
/* Clean up system table */
.ptr = &systab.boottime,
.patchto = NULL,
- },
+ }, {
+ .ptr = &efi_runtime_services.get_variable,
+ .patchto = &efi_device_error,
+ }, {
+ .ptr = &efi_runtime_services.get_next_variable,
+ .patchto = &efi_device_error,
+ }, {
+ .ptr = &efi_runtime_services.set_variable,
+ .patchto = &efi_device_error,
+ }
};
static bool efi_runtime_tobedetached(void *p)
@@ -382,9 +391,9 @@ struct efi_runtime_services __efi_runtime_data efi_runtime_services = {
.set_wakeup_time = (void *)&efi_unimplemented,
.set_virtual_address_map = &efi_set_virtual_address_map,
.convert_pointer = (void *)&efi_invalid_parameter,
- .get_variable = (void *)&efi_device_error,
- .get_next_variable = (void *)&efi_device_error,
- .set_variable = (void *)&efi_device_error,
+ .get_variable = efi_get_variable,
+ .get_next_variable = efi_get_next_variable,
+ .set_variable = efi_set_variable,
.get_next_high_mono_count = (void *)&efi_device_error,
.reset_system = &efi_reset_system_boottime,
};
diff --git a/lib/efi_loader/efi_variable.c b/lib/efi_loader/efi_variable.c
new file mode 100644
index 0000000000..5569b3d3f0
--- /dev/null
+++ b/lib/efi_loader/efi_variable.c
@@ -0,0 +1,335 @@
+/*
+ * EFI utils
+ *
+ * Copyright (c) 2017 Rob Clark
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <malloc.h>
+#include <charset.h>
+#include <efi_loader.h>
+
+#define READ_ONLY BIT(31)
+
+/*
+ * Mapping between EFI variables and u-boot variables:
+ *
+ * efi_$guid_$varname = {attributes}(type)value
+ *
+ * For example:
+ *
+ * efi_8be4df61-93ca-11d2-aa0d-00e098032b8c_OsIndicationsSupported=
+ * "{ro,boot,run}(blob)0000000000000000"
+ * efi_8be4df61-93ca-11d2-aa0d-00e098032b8c_BootOrder=
+ * "(blob)00010000"
+ *
+ * The attributes are a comma separated list of these possible
+ * attributes:
+ *
+ * + ro - read-only
+ * + boot - boot-services access
+ * + run - runtime access
+ *
+ * NOTE: with current implementation, no variables are available after
+ * ExitBootServices, and all are persisted (if possible).
+ *
+ * If not specified, the attributes default to "{boot}".
+ *
+ * The required type is one of:
+ *
+ * + utf8 - raw utf8 string
+ * + blob - arbitrary length hex string
+ *
+ * Maybe a utf16 type would be useful to for a string value to be auto
+ * converted to utf16?
+ */
+
+#define MAX_VAR_NAME 31
+#define MAX_NATIVE_VAR_NAME \
+ (strlen("efi_xxxxxxxx-xxxx-xxxx-xxxxxxxxxxxxxxxx_") + \
+ (MAX_VAR_NAME * MAX_UTF8_PER_UTF16))
+
+static int hex(unsigned char ch)
+{
+ if (ch >= 'a' && ch <= 'f')
+ return ch-'a'+10;
+ if (ch >= '0' && ch <= '9')
+ return ch-'0';
+ if (ch >= 'A' && ch <= 'F')
+ return ch-'A'+10;
+ return -1;
+}
+
+static const char *hex2mem(u8 *mem, const char *hexstr, int count)
+{
+ memset(mem, 0, count/2);
+
+ do {
+ int nibble;
+
+ *mem = 0;
+
+ if (!count || !*hexstr)
+ break;
+
+ nibble = hex(*hexstr);
+ if (nibble < 0)
+ break;
+
+ *mem = nibble;
+ count--;
+ hexstr++;
+
+ if (!count || !*hexstr)
+ break;
+
+ nibble = hex(*hexstr);
+ if (nibble < 0)
+ break;
+
+ *mem = (*mem << 4) | nibble;
+ count--;
+ hexstr++;
+ mem++;
+
+ } while (1);
+
+ if (*hexstr)
+ return hexstr;
+
+ return NULL;
+}
+
+static char *mem2hex(char *hexstr, const u8 *mem, int count)
+{
+ static const char hexchars[] = "0123456789abcdef";
+
+ while (count-- > 0) {
+ u8 ch = *mem++;
+ *hexstr++ = hexchars[ch >> 4];
+ *hexstr++ = hexchars[ch & 0xf];
+ }
+
+ return hexstr;
+}
+
+static efi_status_t efi_to_native(char *native, s16 *variable_name,
+ efi_guid_t *vendor)
+{
+ size_t len;
+
+ len = utf16_strlen((u16 *)variable_name);
+ if (len >= MAX_VAR_NAME)
+ return EFI_DEVICE_ERROR;
+
+ native += sprintf(native, "efi_%pUl_", vendor);
+ native = (char *)utf16_to_utf8((u8 *)native, (u16 *)variable_name, len);
+ *native = '\0';
+
+ return EFI_SUCCESS;
+}
+
+static const char *prefix(const char *str, const char *prefix)
+{
+ size_t n = strlen(prefix);
+ if (!strncmp(prefix, str, n))
+ return str + n;
+ return NULL;
+}
+
+/* parse attributes part of variable value, if present: */
+static const char *parse_attr(const char *str, u32 *attrp)
+{
+ u32 attr = 0;
+ char sep = '{';
+
+ if (*str != '{') {
+ *attrp = EFI_VARIABLE_BOOTSERVICE_ACCESS;
+ return str;
+ }
+
+ while (*str == sep) {
+ const char *s;
+
+ str++;
+
+ if ((s = prefix(str, "ro"))) {
+ attr |= READ_ONLY;
+ } else if ((s = prefix(str, "boot"))) {
+ attr |= EFI_VARIABLE_BOOTSERVICE_ACCESS;
+ } else if ((s = prefix(str, "run"))) {
+ attr |= EFI_VARIABLE_RUNTIME_ACCESS;
+ } else {
+ printf("invalid attribute: %s\n", str);
+ break;
+ }
+
+ str = s;
+ sep = ',';
+ }
+
+ str++;
+
+ *attrp = attr;
+
+ return str;
+}
+
+/* http://wiki.phoenix.com/wiki/index.php/EFI_RUNTIME_SERVICES#GetVariable.28.29 */
+efi_status_t EFIAPI efi_get_variable(s16 *variable_name,
+ efi_guid_t *vendor, u32 *attributes,
+ unsigned long *data_size, void *data)
+{
+ char native_name[MAX_NATIVE_VAR_NAME + 1];
+ efi_status_t ret;
+ unsigned long in_size;
+ const char *val, *s;
+ u32 attr;
+
+ EFI_ENTRY("%p %p %p %p %p", variable_name, vendor, attributes,
+ data_size, data);
+
+ if (!variable_name || !vendor || !data_size)
+ return EFI_EXIT(EFI_INVALID_PARAMETER);
+
+ ret = efi_to_native(native_name, variable_name, vendor);
+ if (ret)
+ return EFI_EXIT(ret);
+
+ debug("%s: get '%s'\n", __func__, native_name);
+
+ val = env_get(native_name);
+ if (!val)
+ return EFI_EXIT(EFI_NOT_FOUND);
+
+ val = parse_attr(val, &attr);
+
+ in_size = *data_size;
+
+ if ((s = prefix(val, "(blob)"))) {
+ unsigned len = strlen(s);
+
+ /* two characters per byte: */
+ len = DIV_ROUND_UP(len, 2);
+ *data_size = len;
+
+ if (in_size < len)
+ return EFI_EXIT(EFI_BUFFER_TOO_SMALL);
+
+ if (!data)
+ return EFI_EXIT(EFI_INVALID_PARAMETER);
+
+ if (hex2mem(data, s, len * 2))
+ return EFI_EXIT(EFI_DEVICE_ERROR);
+
+ debug("%s: got value: \"%s\"\n", __func__, s);
+ } else if ((s = prefix(val, "(utf8)"))) {
+ unsigned len = strlen(s) + 1;
+
+ *data_size = len;
+
+ if (in_size < len)
+ return EFI_EXIT(EFI_BUFFER_TOO_SMALL);
+
+ if (!data)
+ return EFI_EXIT(EFI_INVALID_PARAMETER);
+
+ memcpy(data, s, len);
+ ((char *)data)[len] = '\0';
+
+ debug("%s: got value: \"%s\"\n", __func__, (char *)data);
+ } else {
+ debug("%s: invalid value: '%s'\n", __func__, val);
+ return EFI_EXIT(EFI_DEVICE_ERROR);
+ }
+
+ if (attributes)
+ *attributes = attr & EFI_VARIABLE_MASK;
+
+ return EFI_EXIT(EFI_SUCCESS);
+}
+
+/* http://wiki.phoenix.com/wiki/index.php/EFI_RUNTIME_SERVICES#GetNextVariableName.28.29 */
+efi_status_t EFIAPI efi_get_next_variable(
+ unsigned long *variable_name_size,
+ s16 *variable_name, efi_guid_t *vendor)
+{
+ EFI_ENTRY("%p %p %p", variable_name_size, variable_name, vendor);
+
+ return EFI_EXIT(EFI_DEVICE_ERROR);
+}
+
+/* http://wiki.phoenix.com/wiki/index.php/EFI_RUNTIME_SERVICES#SetVariable.28.29 */
+efi_status_t EFIAPI efi_set_variable(s16 *variable_name,
+ efi_guid_t *vendor, u32 attributes,
+ unsigned long data_size, void *data)
+{
+ char native_name[MAX_NATIVE_VAR_NAME + 1];
+ efi_status_t ret = EFI_SUCCESS;
+ char *val, *s;
+ u32 attr;
+
+ EFI_ENTRY("%p %p %x %lu %p", variable_name, vendor, attributes,
+ data_size, data);
+
+ if (!variable_name || !vendor)
+ return EFI_EXIT(EFI_INVALID_PARAMETER);
+
+ ret = efi_to_native(native_name, variable_name, vendor);
+ if (ret)
+ return EFI_EXIT(ret);
+
+#define ACCESS_ATTR (EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_BOOTSERVICE_ACCESS)
+
+ if ((data_size == 0) || !(attributes & ACCESS_ATTR)) {
+ /* delete the variable: */
+ env_set(native_name, NULL);
+ return EFI_EXIT(EFI_SUCCESS);
+ }
+
+ val = env_get(native_name);
+ if (val) {
+ parse_attr(val, &attr);
+
+ if (attr & READ_ONLY)
+ return EFI_EXIT(EFI_WRITE_PROTECTED);
+ }
+
+ val = malloc(2 * data_size + strlen("{ro,run,boot}(blob)") + 1);
+ if (!val)
+ return EFI_EXIT(EFI_OUT_OF_RESOURCES);
+
+ s = val;
+
+ /* store attributes: */
+ attributes &= (EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS);
+ s += sprintf(s, "{");
+ while (attributes) {
+ u32 attr = 1 << (ffs(attributes) - 1);
+
+ if (attr == EFI_VARIABLE_BOOTSERVICE_ACCESS)
+ s += sprintf(s, "boot");
+ else if (attr == EFI_VARIABLE_RUNTIME_ACCESS)
+ s += sprintf(s, "run");
+
+ attributes &= ~attr;
+ if (attributes)
+ s += sprintf(s, ",");
+ }
+ s += sprintf(s, "}");
+
+ /* store payload: */
+ s += sprintf(s, "(blob)");
+ s = mem2hex(s, data, data_size);
+ *s = '\0';
+
+ debug("%s: setting: %s=%s\n", __func__, native_name, val);
+
+ if (env_set(native_name, val))
+ ret = EFI_DEVICE_ERROR;
+
+ free(val);
+
+ return EFI_EXIT(ret);
+}
--
2.13.5
^ permalink raw reply related [flat|nested] 46+ messages in thread* [U-Boot] [PATCH v2 14/21] efi_loader: efi variable support
2017-09-10 11:21 ` [U-Boot] [PATCH v2 14/21] efi_loader: efi variable support Rob Clark
@ 2017-09-12 12:30 ` Simon Glass
2017-09-12 13:10 ` Rob Clark
0 siblings, 1 reply; 46+ messages in thread
From: Simon Glass @ 2017-09-12 12:30 UTC (permalink / raw)
To: u-boot
Hi Rob,
On 10 September 2017 at 05:21, Rob Clark <robdclark@gmail.com> wrote:
> Add EFI variable support, mapping to u-boot environment variables.
> Variables are pretty important for setting up boot order, among other
> things. If the board supports saveenv, then it will be called in
> ExitBootServices() to persist variables set by the efi payload. (For
> example, fallback.efi configuring BootOrder and BootXXXX load-option
> variables.)
>
> Variables are *not* currently exposed at runtime, post ExitBootServices.
> On boards without a dedicated device for storage, which the loaded OS
> is not trying to also use, this is rather tricky. One idea, at least
> for boards that can persist RAM across reboot, is to keep a "journal"
> of modified variables in RAM, and then turn halt into a reboot into
> u-boot, plus store variables, plus halt. Whatever the solution, it
> likely involves some per-board support.
>
> Mapping between EFI variables and u-boot variables:
>
> efi_$guid_$varname = {attributes}(type)value
>
> For example:
>
> efi_8be4df61-93ca-11d2-aa0d-00e098032b8c_OsIndicationsSupported=
> "{ro,boot,run}(blob)0000000000000000"
> efi_8be4df61-93ca-11d2-aa0d-00e098032b8c_BootOrder=
> "(blob)00010000"
>
> The attributes are a comma separated list of these possible
> attributes:
>
> + ro - read-only
> + boot - boot-services access
> + run - runtime access
>
> NOTE: with current implementation, no variables are available after
> ExitBootServices, and all are persisted (if possible).
>
> If not specified, the attributes default to "{boot}".
>
> The required type is one of:
>
> + utf8 - raw utf8 string
> + blob - arbitrary length hex string
>
> Signed-off-by: Rob Clark <robdclark@gmail.com>
> ---
> cmd/bootefi.c | 4 +
> include/efi.h | 19 +++
> include/efi_loader.h | 10 ++
> lib/efi_loader/Makefile | 2 +-
> lib/efi_loader/efi_boottime.c | 6 +
> lib/efi_loader/efi_runtime.c | 17 ++-
> lib/efi_loader/efi_variable.c | 335 ++++++++++++++++++++++++++++++++++++++++++
> 7 files changed, 388 insertions(+), 5 deletions(-)
> create mode 100644 lib/efi_loader/efi_variable.c
What does hex2mem() do? Please add a comment
This code looks fine but we need a simple way to test it. I think
Herinrich is working on a single hello world test. That could be
enhanced to set and read variables.
^ permalink raw reply [flat|nested] 46+ messages in thread* [U-Boot] [PATCH v2 14/21] efi_loader: efi variable support
2017-09-12 12:30 ` Simon Glass
@ 2017-09-12 13:10 ` Rob Clark
0 siblings, 0 replies; 46+ messages in thread
From: Rob Clark @ 2017-09-12 13:10 UTC (permalink / raw)
To: u-boot
On Tue, Sep 12, 2017 at 8:30 AM, Simon Glass <sjg@chromium.org> wrote:
> Hi Rob,
>
> On 10 September 2017 at 05:21, Rob Clark <robdclark@gmail.com> wrote:
>> Add EFI variable support, mapping to u-boot environment variables.
>> Variables are pretty important for setting up boot order, among other
>> things. If the board supports saveenv, then it will be called in
>> ExitBootServices() to persist variables set by the efi payload. (For
>> example, fallback.efi configuring BootOrder and BootXXXX load-option
>> variables.)
>>
>> Variables are *not* currently exposed at runtime, post ExitBootServices.
>> On boards without a dedicated device for storage, which the loaded OS
>> is not trying to also use, this is rather tricky. One idea, at least
>> for boards that can persist RAM across reboot, is to keep a "journal"
>> of modified variables in RAM, and then turn halt into a reboot into
>> u-boot, plus store variables, plus halt. Whatever the solution, it
>> likely involves some per-board support.
>>
>> Mapping between EFI variables and u-boot variables:
>>
>> efi_$guid_$varname = {attributes}(type)value
>>
>> For example:
>>
>> efi_8be4df61-93ca-11d2-aa0d-00e098032b8c_OsIndicationsSupported=
>> "{ro,boot,run}(blob)0000000000000000"
>> efi_8be4df61-93ca-11d2-aa0d-00e098032b8c_BootOrder=
>> "(blob)00010000"
>>
>> The attributes are a comma separated list of these possible
>> attributes:
>>
>> + ro - read-only
>> + boot - boot-services access
>> + run - runtime access
>>
>> NOTE: with current implementation, no variables are available after
>> ExitBootServices, and all are persisted (if possible).
>>
>> If not specified, the attributes default to "{boot}".
>>
>> The required type is one of:
>>
>> + utf8 - raw utf8 string
>> + blob - arbitrary length hex string
>>
>> Signed-off-by: Rob Clark <robdclark@gmail.com>
>> ---
>> cmd/bootefi.c | 4 +
>> include/efi.h | 19 +++
>> include/efi_loader.h | 10 ++
>> lib/efi_loader/Makefile | 2 +-
>> lib/efi_loader/efi_boottime.c | 6 +
>> lib/efi_loader/efi_runtime.c | 17 ++-
>> lib/efi_loader/efi_variable.c | 335 ++++++++++++++++++++++++++++++++++++++++++
>> 7 files changed, 388 insertions(+), 5 deletions(-)
>> create mode 100644 lib/efi_loader/efi_variable.c
>
> What does hex2mem() do? Please add a comment
>
> This code looks fine but we need a simple way to test it. I think
> Herinrich is working on a single hello world test. That could be
> enhanced to set and read variables.
tbh, just starting Shell.efi, let alone launching SCT.efi, requires
all of this stuff (filesys, variables, installing/removing protocols,
etc) to be working
Getting shell.efi into travis and running a couple "simple" commands
seems like a better option.
BR,
-R
^ permalink raw reply [flat|nested] 46+ messages in thread
* [U-Boot] [PATCH v2 15/21] efi_loader: add bootmgr
2017-09-10 11:21 [U-Boot] [PATCH v2 00/21] efi_loader: enough UEFI for standard distro boot Rob Clark
` (22 preceding siblings ...)
2017-09-10 11:21 ` [U-Boot] [PATCH v2 14/21] efi_loader: efi variable support Rob Clark
@ 2017-09-10 11:21 ` Rob Clark
2017-09-12 12:30 ` Simon Glass
2017-09-10 11:21 ` [U-Boot] [PATCH v2 16/21] efi_loader: file_path should be variable length Rob Clark
` (6 subsequent siblings)
30 siblings, 1 reply; 46+ messages in thread
From: Rob Clark @ 2017-09-10 11:21 UTC (permalink / raw)
To: u-boot
Similar to a "real" UEFI implementation, the bootmgr looks at the
BootOrder and BootXXXX variables to try to find an EFI payload to load
and boot. This is added as a sub-command of bootefi.
The idea is that the distro bootcmd would first try loading a payload
via the bootmgr, and then if that fails (ie. first boot or corrupted
EFI variables) it would fallback to loading bootaa64.efi. (Which
would then load fallback.efi which would look for \EFI\*\boot.csv and
populate BootOrder and BootXXXX based on what it found.)
Signed-off-by: Rob Clark <robdclark@gmail.com>
---
cmd/bootefi.c | 48 ++++++++++-
include/config_distro_bootcmd.h | 5 ++
include/efi_api.h | 4 +
include/efi_loader.h | 6 ++
lib/efi_loader/Makefile | 2 +-
lib/efi_loader/efi_bootmgr.c | 169 ++++++++++++++++++++++++++++++++++++++
lib/efi_loader/efi_boottime.c | 6 +-
lib/efi_loader/efi_image_loader.c | 1 +
8 files changed, 235 insertions(+), 6 deletions(-)
create mode 100644 lib/efi_loader/efi_bootmgr.c
diff --git a/cmd/bootefi.c b/cmd/bootefi.c
index d3ae33e25b..fcd8dbafc1 100644
--- a/cmd/bootefi.c
+++ b/cmd/bootefi.c
@@ -219,6 +219,36 @@ exit:
return ret;
}
+static int do_bootefi_bootmgr_exec(unsigned long fdt_addr)
+{
+ struct efi_device_path *device_path, *file_path;
+ void *addr;
+ efi_status_t r;
+
+ /* Initialize and populate EFI object list */
+ if (!efi_obj_list_initalized)
+ efi_init_obj_list();
+
+ /*
+ * gd lives in a fixed register which may get clobbered while we execute
+ * the payload. So save it here and restore it on every callback entry
+ */
+ efi_save_gd();
+
+ addr = efi_bootmgr_load(&device_path, &file_path);
+ if (!addr)
+ return 1;
+
+ printf("## Starting EFI application at %p ...\n", addr);
+ r = do_bootefi_exec(addr, (void *)fdt_addr, device_path, file_path);
+ printf("## Application terminated, r = %lu\n",
+ r & ~EFI_ERROR_MASK);
+
+ if (r != EFI_SUCCESS)
+ return 1;
+
+ return 0;
+}
/* Interpreter command to boot an arbitrary EFI image from memory */
static int do_bootefi(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
@@ -237,7 +267,14 @@ static int do_bootefi(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
memcpy((char *)addr, __efi_hello_world_begin, size);
} else
#endif
- {
+ if (!strcmp(argv[1], "bootmgr")) {
+ unsigned long fdt_addr = 0;
+
+ if (argc > 2)
+ fdt_addr = simple_strtoul(argv[2], NULL, 16);
+
+ return do_bootefi_bootmgr_exec(fdt_addr);
+ } else {
saddr = argv[1];
addr = simple_strtoul(saddr, NULL, 16);
@@ -270,7 +307,11 @@ static char bootefi_help_text[] =
"hello\n"
" - boot a sample Hello World application stored within U-Boot"
#endif
- ;
+ "bootmgr [fdt addr]\n"
+ " - load and boot EFI payload based on BootOrder/BootXXXX variables.\n"
+ "\n"
+ " If specified, the device tree located at <fdt address> gets\n"
+ " exposed as EFI configuration table.\n";
#endif
U_BOOT_CMD(
@@ -308,6 +349,9 @@ void efi_set_bootdev(const char *dev, const char *devnr, const char *path)
#endif
}
+ if (!path)
+ return;
+
if (strcmp(dev, "Net")) {
/* Add leading / to fs paths, because they're absolute */
snprintf(filename, sizeof(filename), "/%s", path);
diff --git a/include/config_distro_bootcmd.h b/include/config_distro_bootcmd.h
index 9ed6b9892c..e0d0034ed3 100644
--- a/include/config_distro_bootcmd.h
+++ b/include/config_distro_bootcmd.h
@@ -112,6 +112,11 @@
#define BOOTENV_SHARED_EFI \
"boot_efi_binary=" \
+ "if fdt addr ${fdt_addr_r}; then " \
+ "bootefi bootmgr ${fdt_addr_r};" \
+ "else " \
+ "bootefi bootmgr ${fdtcontroladdr};" \
+ "fi;" \
"load ${devtype} ${devnum}:${distro_bootpart} " \
"${kernel_addr_r} efi/boot/"BOOTEFI_NAME"; " \
"if fdt addr ${fdt_addr_r}; then " \
diff --git a/include/efi_api.h b/include/efi_api.h
index 1aae96355f..d0aefa8221 100644
--- a/include/efi_api.h
+++ b/include/efi_api.h
@@ -211,6 +211,10 @@ struct efi_runtime_services {
EFI_GUID(0x00000000, 0x0000, 0x0000, 0x00, 0x00, \
0x00, 0x00, 0x00, 0x00, 0x00, 0x00)
+#define EFI_GLOBAL_VARIABLE_GUID \
+ EFI_GUID(0x8be4df61, 0x93ca, 0x11d2, 0xaa, 0x0d, \
+ 0x00, 0xe0, 0x98, 0x03, 0x2b, 0x8c)
+
#define LOADED_IMAGE_PROTOCOL_GUID \
EFI_GUID(0x5b1b31a1, 0x9562, 0x11d2, 0x8e, 0x3f, \
0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b)
diff --git a/include/efi_loader.h b/include/efi_loader.h
index 9eee62dc9c..adc0bcf609 100644
--- a/include/efi_loader.h
+++ b/include/efi_loader.h
@@ -61,6 +61,7 @@ extern const struct efi_device_path_to_text_protocol efi_device_path_to_text;
uint16_t *efi_dp_str(struct efi_device_path *dp);
+extern const efi_guid_t efi_global_variable_guid;
extern const efi_guid_t efi_guid_console_control;
extern const efi_guid_t efi_guid_device_path;
extern const efi_guid_t efi_guid_loaded_image;
@@ -209,6 +210,8 @@ efi_status_t efi_install_configuration_table(const efi_guid_t *guid, void *table
void efi_setup_loaded_image(struct efi_loaded_image *info, struct efi_object *obj,
struct efi_device_path *device_path,
struct efi_device_path *file_path);
+efi_status_t efi_load_image_from_path(struct efi_device_path *file_path,
+ void **buffer);
#ifdef CONFIG_EFI_LOADER_BOUNCE_BUFFER
extern void *efi_bounce_buffer;
@@ -287,6 +290,9 @@ efi_status_t EFIAPI efi_set_variable(s16 *variable_name,
efi_guid_t *vendor, u32 attributes,
unsigned long data_size, void *data);
+void *efi_bootmgr_load(struct efi_device_path **device_path,
+ struct efi_device_path **file_path);
+
#else /* defined(EFI_LOADER) && !defined(CONFIG_SPL_BUILD) */
/* Without CONFIG_EFI_LOADER we don't have a runtime section, stub it out */
diff --git a/lib/efi_loader/Makefile b/lib/efi_loader/Makefile
index f58cb13337..930c0e218e 100644
--- a/lib/efi_loader/Makefile
+++ b/lib/efi_loader/Makefile
@@ -16,7 +16,7 @@ always := $(efiprogs-y)
obj-$(CONFIG_CMD_BOOTEFI_HELLO) += helloworld_efi.o
obj-y += efi_image_loader.o efi_boottime.o efi_runtime.o efi_console.o
obj-y += efi_memory.o efi_device_path_to_text.o efi_device_path.o
-obj-y += efi_file.o efi_variable.o
+obj-y += efi_file.o efi_variable.o efi_bootmgr.o
obj-$(CONFIG_LCD) += efi_gop.o
obj-$(CONFIG_DM_VIDEO) += efi_gop.o
obj-$(CONFIG_PARTITIONS) += efi_disk.o
diff --git a/lib/efi_loader/efi_bootmgr.c b/lib/efi_loader/efi_bootmgr.c
new file mode 100644
index 0000000000..9b2d39944e
--- /dev/null
+++ b/lib/efi_loader/efi_bootmgr.c
@@ -0,0 +1,169 @@
+/*
+ * EFI utils
+ *
+ * Copyright (c) 2017 Rob Clark
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <charset.h>
+#include <malloc.h>
+#include <efi_loader.h>
+
+static const struct efi_boot_services *bs;
+static const struct efi_runtime_services *rs;
+
+#define LOAD_OPTION_ACTIVE 0x00000001
+#define LOAD_OPTION_FORCE_RECONNECT 0x00000002
+#define LOAD_OPTION_HIDDEN 0x00000008
+
+/*
+ * bootmgr implements the logic of trying to find a payload to boot
+ * based on the BootOrder + BootXXXX variables, and then loading it.
+ *
+ * TODO detecting a special key held (f9?) and displaying a boot menu
+ * like you would get on a PC would be clever.
+ *
+ * TODO if we had a way to write and persist variables after the OS
+ * has started, we'd also want to check OsIndications to see if we
+ * should do normal or recovery boot.
+ */
+
+
+/*
+ * See section 3.1.3 in the v2.7 UEFI spec for more details on
+ * the layout of EFI_LOAD_OPTION. In short it is:
+ *
+ * typedef struct _EFI_LOAD_OPTION {
+ * UINT32 Attributes;
+ * UINT16 FilePathListLength;
+ * // CHAR16 Description[]; <-- variable length, NULL terminated
+ * // EFI_DEVICE_PATH_PROTOCOL FilePathList[]; <-- FilePathListLength bytes
+ * // UINT8 OptionalData[];
+ * } EFI_LOAD_OPTION;
+ */
+struct load_option {
+ u32 attributes;
+ u16 file_path_length;
+ u16 *label;
+ struct efi_device_path *file_path;
+ u8 *optional_data;
+};
+
+static void parse_load_option(struct load_option *lo, void *ptr)
+{
+ lo->attributes = *(u32 *)ptr;
+ ptr += sizeof(u32);
+
+ lo->file_path_length = *(u16 *)ptr;
+ ptr += sizeof(u16);
+
+ lo->label = ptr;
+ ptr += (utf16_strlen(lo->label) + 1) * 2;
+
+ lo->file_path = ptr;
+ ptr += lo->file_path_length;
+
+ lo->optional_data = ptr;
+}
+
+/* free() the result */
+static void *get_var(u16 *name, const efi_guid_t *vendor,
+ unsigned long *size)
+{
+ efi_guid_t *v = (efi_guid_t *)vendor;
+ efi_status_t ret;
+ void *buf = NULL;
+
+ *size = 0;
+ EFI_CALL(ret = rs->get_variable((s16 *)name, v, NULL, size, buf));
+ if (ret == EFI_BUFFER_TOO_SMALL) {
+ buf = malloc(*size);
+ EFI_CALL(ret = rs->get_variable((s16 *)name, v, NULL, size, buf));
+ }
+
+ if (ret != EFI_SUCCESS) {
+ free(buf);
+ *size = 0;
+ return NULL;
+ }
+
+ return buf;
+}
+
+static void *try_load_entry(uint16_t n, struct efi_device_path **device_path,
+ struct efi_device_path **file_path)
+{
+ struct load_option lo;
+ u16 varname[] = L"Boot0000";
+ u16 hexmap[] = L"0123456789ABCDEF";
+ void *load_option, *image = NULL;
+ unsigned long size;
+
+ varname[4] = hexmap[(n & 0xf000) >> 12];
+ varname[5] = hexmap[(n & 0x0f00) >> 8];
+ varname[6] = hexmap[(n & 0x00f0) >> 4];
+ varname[7] = hexmap[(n & 0x000f) >> 0];
+
+ load_option = get_var(varname, &efi_global_variable_guid, &size);
+ if (!load_option)
+ return NULL;
+
+ parse_load_option(&lo, load_option);
+
+ if (lo.attributes & LOAD_OPTION_ACTIVE) {
+ efi_status_t ret;
+ u16 *str = NULL;
+
+ debug("%s: trying to load \"%ls\" from: %ls\n", __func__,
+ lo.label, (str = efi_dp_str(lo.file_path)));
+ efi_free_pool(str);
+
+ ret = efi_load_image_from_path(lo.file_path, &image);
+
+ if (ret != EFI_SUCCESS)
+ goto error;
+
+ printf("Booting: %ls\n", lo.label);
+ efi_dp_split_file_path(lo.file_path, device_path, file_path);
+ }
+
+error:
+ free(load_option);
+
+ return image;
+}
+
+void *efi_bootmgr_load(struct efi_device_path **device_path,
+ struct efi_device_path **file_path)
+{
+ uint16_t *bootorder;
+ unsigned long size;
+ void *image = NULL;
+ int i, num;
+
+ __efi_entry_check();
+
+ bs = systab.boottime;
+ rs = systab.runtime;
+
+ bootorder = get_var(L"BootOrder", &efi_global_variable_guid, &size);
+ if (!bootorder)
+ goto error;
+
+ num = size / sizeof(uint16_t);
+ for (i = 0; i < num; i++) {
+ debug("%s: trying to load Boot%04X\n", __func__, bootorder[i]);
+ image = try_load_entry(bootorder[i], device_path, file_path);
+ if (image)
+ break;
+ }
+
+ free(bootorder);
+
+error:
+ __efi_exit_check();
+
+ return image;
+}
diff --git a/lib/efi_loader/efi_boottime.c b/lib/efi_loader/efi_boottime.c
index c406ff82ff..cea242cd49 100644
--- a/lib/efi_loader/efi_boottime.c
+++ b/lib/efi_loader/efi_boottime.c
@@ -763,8 +763,8 @@ void efi_setup_loaded_image(struct efi_loaded_image *info, struct efi_object *ob
list_add_tail(&obj->link, &efi_obj_list);
}
-static efi_status_t load_image_from_path(struct efi_device_path *file_path,
- void **buffer)
+efi_status_t efi_load_image_from_path(struct efi_device_path *file_path,
+ void **buffer)
{
struct efi_file_info *info = NULL;
struct efi_file_handle *f;
@@ -824,7 +824,7 @@ static efi_status_t EFIAPI efi_load_image(bool boot_policy,
struct efi_device_path *dp, *fp;
efi_status_t ret;
- ret = load_image_from_path(file_path, &source_buffer);
+ ret = efi_load_image_from_path(file_path, &source_buffer);
if (ret != EFI_SUCCESS) {
free(info);
free(obj);
diff --git a/lib/efi_loader/efi_image_loader.c b/lib/efi_loader/efi_image_loader.c
index 469acae082..242e6a504b 100644
--- a/lib/efi_loader/efi_image_loader.c
+++ b/lib/efi_loader/efi_image_loader.c
@@ -15,6 +15,7 @@
DECLARE_GLOBAL_DATA_PTR;
+const efi_guid_t efi_global_variable_guid = EFI_GLOBAL_VARIABLE_GUID;
const efi_guid_t efi_guid_device_path = DEVICE_PATH_GUID;
const efi_guid_t efi_guid_loaded_image = LOADED_IMAGE_GUID;
const efi_guid_t efi_simple_file_system_protocol_guid =
--
2.13.5
^ permalink raw reply related [flat|nested] 46+ messages in thread* [U-Boot] [PATCH v2 15/21] efi_loader: add bootmgr
2017-09-10 11:21 ` [U-Boot] [PATCH v2 15/21] efi_loader: add bootmgr Rob Clark
@ 2017-09-12 12:30 ` Simon Glass
0 siblings, 0 replies; 46+ messages in thread
From: Simon Glass @ 2017-09-12 12:30 UTC (permalink / raw)
To: u-boot
On 10 September 2017 at 05:21, Rob Clark <robdclark@gmail.com> wrote:
> Similar to a "real" UEFI implementation, the bootmgr looks at the
> BootOrder and BootXXXX variables to try to find an EFI payload to load
> and boot. This is added as a sub-command of bootefi.
>
> The idea is that the distro bootcmd would first try loading a payload
> via the bootmgr, and then if that fails (ie. first boot or corrupted
> EFI variables) it would fallback to loading bootaa64.efi. (Which
> would then load fallback.efi which would look for \EFI\*\boot.csv and
> populate BootOrder and BootXXXX based on what it found.)
>
> Signed-off-by: Rob Clark <robdclark@gmail.com>
> ---
> cmd/bootefi.c | 48 ++++++++++-
> include/config_distro_bootcmd.h | 5 ++
> include/efi_api.h | 4 +
> include/efi_loader.h | 6 ++
> lib/efi_loader/Makefile | 2 +-
> lib/efi_loader/efi_bootmgr.c | 169 ++++++++++++++++++++++++++++++++++++++
> lib/efi_loader/efi_boottime.c | 6 +-
> lib/efi_loader/efi_image_loader.c | 1 +
> 8 files changed, 235 insertions(+), 6 deletions(-)
> create mode 100644 lib/efi_loader/efi_bootmgr.c
Please can you add function comments to your static functions?
^ permalink raw reply [flat|nested] 46+ messages in thread
* [U-Boot] [PATCH v2 16/21] efi_loader: file_path should be variable length
2017-09-10 11:21 [U-Boot] [PATCH v2 00/21] efi_loader: enough UEFI for standard distro boot Rob Clark
` (23 preceding siblings ...)
2017-09-10 11:21 ` [U-Boot] [PATCH v2 15/21] efi_loader: add bootmgr Rob Clark
@ 2017-09-10 11:21 ` Rob Clark
2017-09-10 11:21 ` [U-Boot] [PATCH v2 17/21] efi_loader: set loaded image code/data type properly Rob Clark
` (5 subsequent siblings)
30 siblings, 0 replies; 46+ messages in thread
From: Rob Clark @ 2017-09-10 11:21 UTC (permalink / raw)
To: u-boot
After "efi_loader: refactor boot device and loaded_image handling" we
can drop this hack.
Signed-off-by: Rob Clark <robdclark@gmail.com>
---
include/efi_api.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/efi_api.h b/include/efi_api.h
index d0aefa8221..604c5b7ec4 100644
--- a/include/efi_api.h
+++ b/include/efi_api.h
@@ -373,7 +373,7 @@ struct efi_device_path_cdrom_path {
struct efi_device_path_file_path {
struct efi_device_path dp;
- u16 str[32];
+ u16 str[];
} __packed;
#define BLOCK_IO_GUID \
--
2.13.5
^ permalink raw reply related [flat|nested] 46+ messages in thread* [U-Boot] [PATCH v2 17/21] efi_loader: set loaded image code/data type properly
2017-09-10 11:21 [U-Boot] [PATCH v2 00/21] efi_loader: enough UEFI for standard distro boot Rob Clark
` (24 preceding siblings ...)
2017-09-10 11:21 ` [U-Boot] [PATCH v2 16/21] efi_loader: file_path should be variable length Rob Clark
@ 2017-09-10 11:21 ` Rob Clark
2017-09-10 11:21 ` [U-Boot] [PATCH v2 18/21] efi_loader: print GUIDs Rob Clark
` (4 subsequent siblings)
30 siblings, 0 replies; 46+ messages in thread
From: Rob Clark @ 2017-09-10 11:21 UTC (permalink / raw)
To: u-boot
These should be set according to the image type. Shell.efi and SCT.efi
use these fields to determine what sort of image they are loading.
Signed-off-by: Rob Clark <robdclark@gmail.com>
---
include/pe.h | 6 ++++++
lib/efi_loader/efi_image_loader.c | 22 ++++++++++++++++++++++
2 files changed, 28 insertions(+)
diff --git a/include/pe.h b/include/pe.h
index deb35a0ea4..4ef3e92efa 100644
--- a/include/pe.h
+++ b/include/pe.h
@@ -62,6 +62,12 @@ typedef struct _IMAGE_DATA_DIRECTORY {
#define IMAGE_NUMBEROF_DIRECTORY_ENTRIES 16
+/* PE32+ Subsystem type for EFI images */
+#define IMAGE_SUBSYSTEM_EFI_APPLICATION 10
+#define IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER 11
+#define IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER 12
+#define IMAGE_SUBSYSTEM_SAL_RUNTIME_DRIVER 13
+
typedef struct _IMAGE_OPTIONAL_HEADER64 {
uint16_t Magic; /* 0x20b */
uint8_t MajorLinkerVersion;
diff --git a/lib/efi_loader/efi_image_loader.c b/lib/efi_loader/efi_image_loader.c
index 242e6a504b..af29cc4f04 100644
--- a/lib/efi_loader/efi_image_loader.c
+++ b/lib/efi_loader/efi_image_loader.c
@@ -94,6 +94,7 @@ void *efi_load_pe(void *efi, struct efi_loaded_image *loaded_image_info)
unsigned long virt_size = 0;
bool can_run_nt64 = true;
bool can_run_nt32 = true;
+ uint16_t image_type;
#if defined(CONFIG_ARM64)
can_run_nt32 = false;
@@ -139,6 +140,7 @@ void *efi_load_pe(void *efi, struct efi_loaded_image *loaded_image_info)
entry = efi_reloc + opt->AddressOfEntryPoint;
rel_size = opt->DataDirectory[rel_idx].Size;
rel = efi_reloc + opt->DataDirectory[rel_idx].VirtualAddress;
+ image_type = opt->Subsystem;
} else if (can_run_nt32 &&
(nt->OptionalHeader.Magic == IMAGE_NT_OPTIONAL_HDR32_MAGIC)) {
IMAGE_OPTIONAL_HEADER32 *opt = &nt->OptionalHeader;
@@ -152,12 +154,32 @@ void *efi_load_pe(void *efi, struct efi_loaded_image *loaded_image_info)
entry = efi_reloc + opt->AddressOfEntryPoint;
rel_size = opt->DataDirectory[rel_idx].Size;
rel = efi_reloc + opt->DataDirectory[rel_idx].VirtualAddress;
+ image_type = opt->Subsystem;
} else {
printf("%s: Invalid optional header magic %x\n", __func__,
nt->OptionalHeader.Magic);
return NULL;
}
+ switch (image_type) {
+ case IMAGE_SUBSYSTEM_EFI_APPLICATION:
+ loaded_image_info->image_code_type = EFI_LOADER_CODE;
+ loaded_image_info->image_data_type = EFI_LOADER_DATA;
+ break;
+ case IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER:
+ loaded_image_info->image_code_type = EFI_BOOT_SERVICES_CODE;
+ loaded_image_info->image_data_type = EFI_BOOT_SERVICES_DATA;
+ break;
+ case IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER:
+ case IMAGE_SUBSYSTEM_SAL_RUNTIME_DRIVER:
+ loaded_image_info->image_code_type = EFI_RUNTIME_SERVICES_CODE;
+ loaded_image_info->image_data_type = EFI_RUNTIME_SERVICES_DATA;
+ break;
+ default:
+ printf("%s: invalid image type: %u\n", __func__, image_type);
+ break;
+ }
+
/* Load sections into RAM */
for (i = num_sections - 1; i >= 0; i--) {
IMAGE_SECTION_HEADER *sec = §ions[i];
--
2.13.5
^ permalink raw reply related [flat|nested] 46+ messages in thread* [U-Boot] [PATCH v2 18/21] efi_loader: print GUIDs
2017-09-10 11:21 [U-Boot] [PATCH v2 00/21] efi_loader: enough UEFI for standard distro boot Rob Clark
` (25 preceding siblings ...)
2017-09-10 11:21 ` [U-Boot] [PATCH v2 17/21] efi_loader: set loaded image code/data type properly Rob Clark
@ 2017-09-10 11:21 ` Rob Clark
2017-09-10 11:21 ` [U-Boot] [PATCH v2 19/21] efi_loader: split out escape sequence based size query Rob Clark
` (3 subsequent siblings)
30 siblings, 0 replies; 46+ messages in thread
From: Rob Clark @ 2017-09-10 11:21 UTC (permalink / raw)
To: u-boot
Utilize printf GUID support to print GUIDs.
Signed-off-by: Rob Clark <robdclark@gmail.com>
---
lib/efi_loader/efi_boottime.c | 22 +++++++++++-----------
lib/efi_loader/efi_variable.c | 6 +++---
2 files changed, 14 insertions(+), 14 deletions(-)
diff --git a/lib/efi_loader/efi_boottime.c b/lib/efi_loader/efi_boottime.c
index cea242cd49..b6f32c98d9 100644
--- a/lib/efi_loader/efi_boottime.c
+++ b/lib/efi_loader/efi_boottime.c
@@ -514,7 +514,7 @@ static efi_status_t EFIAPI efi_install_protocol_interface_ext(void **handle,
efi_guid_t *protocol, int protocol_interface_type,
void *protocol_interface)
{
- EFI_ENTRY("%p, %p, %d, %p", handle, protocol, protocol_interface_type,
+ EFI_ENTRY("%p, %pUl, %d, %p", handle, protocol, protocol_interface_type,
protocol_interface);
return EFI_EXIT(efi_install_protocol_interface(handle, protocol,
@@ -526,7 +526,7 @@ static efi_status_t EFIAPI efi_reinstall_protocol_interface(void *handle,
efi_guid_t *protocol, void *old_interface,
void *new_interface)
{
- EFI_ENTRY("%p, %p, %p, %p", handle, protocol, old_interface,
+ EFI_ENTRY("%p, %pUl, %p, %p", handle, protocol, old_interface,
new_interface);
return EFI_EXIT(EFI_ACCESS_DENIED);
}
@@ -575,7 +575,7 @@ out:
static efi_status_t EFIAPI efi_uninstall_protocol_interface_ext(void *handle,
efi_guid_t *protocol, void *protocol_interface)
{
- EFI_ENTRY("%p, %p, %p", handle, protocol, protocol_interface);
+ EFI_ENTRY("%p, %pUl, %p", handle, protocol, protocol_interface);
return EFI_EXIT(efi_uninstall_protocol_interface(handle, protocol,
protocol_interface));
@@ -585,7 +585,7 @@ static efi_status_t EFIAPI efi_register_protocol_notify(efi_guid_t *protocol,
struct efi_event *event,
void **registration)
{
- EFI_ENTRY("%p, %p, %p", protocol, event, registration);
+ EFI_ENTRY("%pUl, %p, %p", protocol, event, registration);
return EFI_EXIT(EFI_OUT_OF_RESOURCES);
}
@@ -655,7 +655,7 @@ static efi_status_t EFIAPI efi_locate_handle_ext(
efi_guid_t *protocol, void *search_key,
unsigned long *buffer_size, efi_handle_t *buffer)
{
- EFI_ENTRY("%d, %p, %p, %p, %p", search_type, protocol, search_key,
+ EFI_ENTRY("%d, %pUl, %p, %p, %p", search_type, protocol, search_key,
buffer_size, buffer);
return EFI_EXIT(efi_locate_handle(search_type, protocol, search_key,
@@ -723,7 +723,7 @@ efi_status_t efi_install_configuration_table(const efi_guid_t *guid, void *table
static efi_status_t EFIAPI efi_install_configuration_table_ext(efi_guid_t *guid,
void *table)
{
- EFI_ENTRY("%p, %p", guid, table);
+ EFI_ENTRY("%pUl, %p", guid, table);
return EFI_EXIT(efi_install_configuration_table(guid, table));
}
@@ -1012,7 +1012,7 @@ static efi_status_t EFIAPI efi_close_protocol(void *handle,
void *agent_handle,
void *controller_handle)
{
- EFI_ENTRY("%p, %p, %p, %p", handle, protocol, agent_handle,
+ EFI_ENTRY("%p, %pUl, %p, %p", handle, protocol, agent_handle,
controller_handle);
return EFI_EXIT(EFI_NOT_FOUND);
}
@@ -1022,7 +1022,7 @@ static efi_status_t EFIAPI efi_open_protocol_information(efi_handle_t handle,
struct efi_open_protocol_info_entry **entry_buffer,
unsigned long *entry_count)
{
- EFI_ENTRY("%p, %p, %p, %p", handle, protocol, entry_buffer,
+ EFI_ENTRY("%p, %pUl, %p, %p", handle, protocol, entry_buffer,
entry_count);
return EFI_EXIT(EFI_NOT_FOUND);
}
@@ -1088,7 +1088,7 @@ static efi_status_t EFIAPI efi_locate_handle_buffer(
efi_status_t r;
unsigned long buffer_size = 0;
- EFI_ENTRY("%d, %p, %p, %p, %p", search_type, protocol, search_key,
+ EFI_ENTRY("%d, %pUl, %p, %p, %p", search_type, protocol, search_key,
no_handles, buffer);
if (!no_handles || !buffer) {
@@ -1120,7 +1120,7 @@ static efi_status_t EFIAPI efi_locate_protocol(efi_guid_t *protocol,
struct list_head *lhandle;
int i;
- EFI_ENTRY("%p, %p, %p", protocol, registration, protocol_interface);
+ EFI_ENTRY("%pUl, %p, %p", protocol, registration, protocol_interface);
if (!protocol || !protocol_interface)
return EFI_EXIT(EFI_INVALID_PARAMETER);
@@ -1228,7 +1228,7 @@ static efi_status_t EFIAPI efi_open_protocol(
int i;
efi_status_t r = EFI_INVALID_PARAMETER;
- EFI_ENTRY("%p, %p, %p, %p, %p, 0x%x", handle, protocol,
+ EFI_ENTRY("%p, %pUl, %p, %p, %p, 0x%x", handle, protocol,
protocol_interface, agent_handle, controller_handle,
attributes);
diff --git a/lib/efi_loader/efi_variable.c b/lib/efi_loader/efi_variable.c
index 5569b3d3f0..6c177da3a6 100644
--- a/lib/efi_loader/efi_variable.c
+++ b/lib/efi_loader/efi_variable.c
@@ -187,7 +187,7 @@ efi_status_t EFIAPI efi_get_variable(s16 *variable_name,
const char *val, *s;
u32 attr;
- EFI_ENTRY("%p %p %p %p %p", variable_name, vendor, attributes,
+ EFI_ENTRY("\"%ls\" %pUl %p %p %p", variable_name, vendor, attributes,
data_size, data);
if (!variable_name || !vendor || !data_size)
@@ -255,7 +255,7 @@ efi_status_t EFIAPI efi_get_next_variable(
unsigned long *variable_name_size,
s16 *variable_name, efi_guid_t *vendor)
{
- EFI_ENTRY("%p %p %p", variable_name_size, variable_name, vendor);
+ EFI_ENTRY("%p \"%ls\" %pUl", variable_name_size, variable_name, vendor);
return EFI_EXIT(EFI_DEVICE_ERROR);
}
@@ -270,7 +270,7 @@ efi_status_t EFIAPI efi_set_variable(s16 *variable_name,
char *val, *s;
u32 attr;
- EFI_ENTRY("%p %p %x %lu %p", variable_name, vendor, attributes,
+ EFI_ENTRY("\"%ls\" %pUl %x %lu %p", variable_name, vendor, attributes,
data_size, data);
if (!variable_name || !vendor)
--
2.13.5
^ permalink raw reply related [flat|nested] 46+ messages in thread* [U-Boot] [PATCH v2 19/21] efi_loader: split out escape sequence based size query
2017-09-10 11:21 [U-Boot] [PATCH v2 00/21] efi_loader: enough UEFI for standard distro boot Rob Clark
` (26 preceding siblings ...)
2017-09-10 11:21 ` [U-Boot] [PATCH v2 18/21] efi_loader: print GUIDs Rob Clark
@ 2017-09-10 11:21 ` Rob Clark
2017-09-10 11:21 ` [U-Boot] [PATCH v2 20/21] efi_loader: Correctly figure out size for vidconsole Rob Clark
` (2 subsequent siblings)
30 siblings, 0 replies; 46+ messages in thread
From: Rob Clark @ 2017-09-10 11:21 UTC (permalink / raw)
To: u-boot
We need to do something different for vidconsole, since it cannot
respond to the query on stdin. Prep work for next patch.
Signed-off-by: Rob Clark <robdclark@gmail.com>
---
lib/efi_loader/efi_console.c | 53 +++++++++++++++++++++++++-------------------
1 file changed, 30 insertions(+), 23 deletions(-)
diff --git a/lib/efi_loader/efi_console.c b/lib/efi_loader/efi_console.c
index 3fc82b8726..e8c02870eb 100644
--- a/lib/efi_loader/efi_console.c
+++ b/lib/efi_loader/efi_console.c
@@ -186,6 +186,34 @@ static bool cout_mode_matches(struct cout_mode *mode, int rows, int cols)
return (mode->rows == rows) && (mode->columns == cols);
}
+static int query_console_serial(int *rows, int *cols)
+{
+ /* Ask the terminal about its size */
+ int n[3];
+ u64 timeout;
+
+ /* Empty input buffer */
+ while (tstc())
+ getc();
+
+ printf(ESC"[18t");
+
+ /* Check if we have a terminal that understands */
+ timeout = timer_get_us() + 1000000;
+ while (!tstc())
+ if (timer_get_us() > timeout)
+ return -1;
+
+ /* Read {depth,rows,cols} */
+ if (term_read_reply(n, 3, 't'))
+ return -1;
+
+ *cols = n[2];
+ *rows = n[1];
+
+ return 0;
+}
+
static efi_status_t EFIAPI efi_cout_query_mode(
struct efi_simple_text_output_protocol *this,
unsigned long mode_number, unsigned long *columns,
@@ -194,33 +222,12 @@ static efi_status_t EFIAPI efi_cout_query_mode(
EFI_ENTRY("%p, %ld, %p, %p", this, mode_number, columns, rows);
if (!console_size_queried) {
- /* Ask the terminal about its size */
- int n[3];
- int cols;
- int rows;
- u64 timeout;
+ int rows, cols;
console_size_queried = true;
- /* Empty input buffer */
- while (tstc())
- getc();
-
- printf(ESC"[18t");
-
- /* Check if we have a terminal that understands */
- timeout = timer_get_us() + 1000000;
- while (!tstc())
- if (timer_get_us() > timeout)
- goto out;
-
- /* Read {depth,rows,cols} */
- if (term_read_reply(n, 3, 't')) {
+ if (query_console_serial(&rows, &cols))
goto out;
- }
-
- cols = n[2];
- rows = n[1];
/* Test if we can have Mode 1 */
if (cols >= 80 && rows >= 50) {
--
2.13.5
^ permalink raw reply related [flat|nested] 46+ messages in thread* [U-Boot] [PATCH v2 20/21] efi_loader: Correctly figure out size for vidconsole
2017-09-10 11:21 [U-Boot] [PATCH v2 00/21] efi_loader: enough UEFI for standard distro boot Rob Clark
` (27 preceding siblings ...)
2017-09-10 11:21 ` [U-Boot] [PATCH v2 19/21] efi_loader: split out escape sequence based size query Rob Clark
@ 2017-09-10 11:21 ` Rob Clark
2017-09-10 11:21 ` [U-Boot] [PATCH v2 21/21] efi_loader: Some console improvements " Rob Clark
2017-09-10 11:38 ` [U-Boot] [PATCH v2 00/21] efi_loader: enough UEFI for standard distro boot Rob Clark
30 siblings, 0 replies; 46+ messages in thread
From: Rob Clark @ 2017-09-10 11:21 UTC (permalink / raw)
To: u-boot
If stdout is vidconsole, we cannot rely on ANSI escape sequences to
query the size, as vidconsole cannot reply on stdin. Instead special-
case this if stdout is vidconsole.
Signed-off-by: Rob Clark <robdclark@gmail.com>
---
lib/efi_loader/efi_console.c | 16 +++++++++++++++-
1 file changed, 15 insertions(+), 1 deletion(-)
diff --git a/lib/efi_loader/efi_console.c b/lib/efi_loader/efi_console.c
index e8c02870eb..9048a8d32c 100644
--- a/lib/efi_loader/efi_console.c
+++ b/lib/efi_loader/efi_console.c
@@ -8,7 +8,10 @@
#include <common.h>
#include <charset.h>
+#include <dm/device.h>
#include <efi_loader.h>
+#include <stdio_dev.h>
+#include <video_console.h>
static bool console_size_queried;
@@ -222,12 +225,23 @@ static efi_status_t EFIAPI efi_cout_query_mode(
EFI_ENTRY("%p, %ld, %p, %p", this, mode_number, columns, rows);
if (!console_size_queried) {
+ const char *stdout_name = env_get("stdout");
int rows, cols;
console_size_queried = true;
- if (query_console_serial(&rows, &cols))
+ if (stdout_name && !strcmp(stdout_name, "vidconsole") &&
+ IS_ENABLED(CONFIG_DM_VIDEO)) {
+ struct stdio_dev *stdout_dev =
+ stdio_get_by_name("vidconsole");
+ struct udevice *dev = stdout_dev->priv;
+ struct vidconsole_priv *priv =
+ dev_get_uclass_priv(dev);
+ rows = priv->rows;
+ cols = priv->cols;
+ } else if (query_console_serial(&rows, &cols)) {
goto out;
+ }
/* Test if we can have Mode 1 */
if (cols >= 80 && rows >= 50) {
--
2.13.5
^ permalink raw reply related [flat|nested] 46+ messages in thread* [U-Boot] [PATCH v2 21/21] efi_loader: Some console improvements for vidconsole
2017-09-10 11:21 [U-Boot] [PATCH v2 00/21] efi_loader: enough UEFI for standard distro boot Rob Clark
` (28 preceding siblings ...)
2017-09-10 11:21 ` [U-Boot] [PATCH v2 20/21] efi_loader: Correctly figure out size for vidconsole Rob Clark
@ 2017-09-10 11:21 ` Rob Clark
2017-09-12 12:30 ` Simon Glass
2017-09-10 11:38 ` [U-Boot] [PATCH v2 00/21] efi_loader: enough UEFI for standard distro boot Rob Clark
30 siblings, 1 reply; 46+ messages in thread
From: Rob Clark @ 2017-09-10 11:21 UTC (permalink / raw)
To: u-boot
1) use fputs() to reduce cache flushes from once-per-char to
once-per-string
2) handle \r, \t, and \b in addition to just \n for tracking
cursor position
3) cursor row/col are zero based, not one based
Signed-off-by: Rob Clark <robdclark@gmail.com>
---
include/efi_api.h | 6 +++--
lib/efi_loader/efi_console.c | 58 ++++++++++++++++++++++++++------------------
2 files changed, 39 insertions(+), 25 deletions(-)
diff --git a/include/efi_api.h b/include/efi_api.h
index 604c5b7ec4..c3b9032a48 100644
--- a/include/efi_api.h
+++ b/include/efi_api.h
@@ -29,6 +29,8 @@ enum efi_timer_delay {
};
#define UINTN size_t
+typedef long INTN;
+typedef uint16_t *efi_string_t;
#define EVT_TIMER 0x80000000
#define EVT_RUNTIME 0x40000000
@@ -427,10 +429,10 @@ struct efi_simple_text_output_protocol {
void *reset;
efi_status_t (EFIAPI *output_string)(
struct efi_simple_text_output_protocol *this,
- const unsigned short *str);
+ const efi_string_t str);
efi_status_t (EFIAPI *test_string)(
struct efi_simple_text_output_protocol *this,
- const unsigned short *str);
+ const efi_string_t str);
efi_status_t(EFIAPI *query_mode)(
struct efi_simple_text_output_protocol *this,
unsigned long mode_number, unsigned long *columns,
diff --git a/lib/efi_loader/efi_console.c b/lib/efi_loader/efi_console.c
index 9048a8d32c..afc725a2c7 100644
--- a/lib/efi_loader/efi_console.c
+++ b/lib/efi_loader/efi_console.c
@@ -140,34 +140,46 @@ static efi_status_t EFIAPI efi_cout_reset(
return EFI_EXIT(EFI_UNSUPPORTED);
}
-static void print_unicode_in_utf8(u16 c)
-{
- char utf8[MAX_UTF8_PER_UTF16] = { 0 };
- utf16_to_utf8((u8 *)utf8, &c, 1);
- puts(utf8);
-}
-
static efi_status_t EFIAPI efi_cout_output_string(
struct efi_simple_text_output_protocol *this,
- const unsigned short *string)
+ const efi_string_t string)
{
- struct cout_mode *mode;
- u16 ch;
+ struct simple_text_output_mode *con = &efi_con_mode;
+ struct cout_mode *mode = &efi_cout_modes[con->mode];
- mode = &efi_cout_modes[efi_con_mode.mode];
EFI_ENTRY("%p, %p", this, string);
- for (;(ch = *string); string++) {
- print_unicode_in_utf8(ch);
- efi_con_mode.cursor_column++;
- if (ch == '\n') {
- efi_con_mode.cursor_column = 1;
- efi_con_mode.cursor_row++;
- } else if (efi_con_mode.cursor_column > mode->columns) {
- efi_con_mode.cursor_column = 1;
- efi_con_mode.cursor_row++;
+
+ unsigned n16 = utf16_strlen(string);
+ char buf[MAX_UTF8_PER_UTF16 * n16 + 1];
+ char *p;
+
+ *utf16_to_utf8((u8 *)buf, string, n16) = '\0';
+
+ fputs(stdout, buf);
+
+ for (p = buf; *p; p++) {
+ switch (*p) {
+ case '\r': /* carriage-return */
+ con->cursor_column = 0;
+ break;
+ case '\n': /* newline */
+ con->cursor_column = 0;
+ con->cursor_row++;
+ break;
+ case '\t': /* tab, assume 8 char align */
+ break;
+ case '\b': /* backspace */
+ con->cursor_column = max(0, con->cursor_column - 1);
+ break;
+ default:
+ con->cursor_column++;
+ break;
+ }
+ if (con->cursor_column >= mode->columns) {
+ con->cursor_column = 0;
+ con->cursor_row++;
}
- if (efi_con_mode.cursor_row > mode->rows)
- efi_con_mode.cursor_row = mode->rows;
+ con->cursor_row = min(con->cursor_row, (s32)mode->rows - 1);
}
return EFI_EXIT(EFI_SUCCESS);
@@ -175,7 +187,7 @@ static efi_status_t EFIAPI efi_cout_output_string(
static efi_status_t EFIAPI efi_cout_test_string(
struct efi_simple_text_output_protocol *this,
- const unsigned short *string)
+ const efi_string_t string)
{
EFI_ENTRY("%p, %p", this, string);
return EFI_EXIT(EFI_SUCCESS);
--
2.13.5
^ permalink raw reply related [flat|nested] 46+ messages in thread* [U-Boot] [PATCH v2 21/21] efi_loader: Some console improvements for vidconsole
2017-09-10 11:21 ` [U-Boot] [PATCH v2 21/21] efi_loader: Some console improvements " Rob Clark
@ 2017-09-12 12:30 ` Simon Glass
0 siblings, 0 replies; 46+ messages in thread
From: Simon Glass @ 2017-09-12 12:30 UTC (permalink / raw)
To: u-boot
On 10 September 2017 at 05:21, Rob Clark <robdclark@gmail.com> wrote:
> 1) use fputs() to reduce cache flushes from once-per-char to
> once-per-string
> 2) handle \r, \t, and \b in addition to just \n for tracking
> cursor position
> 3) cursor row/col are zero based, not one based
>
> Signed-off-by: Rob Clark <robdclark@gmail.com>
> ---
> include/efi_api.h | 6 +++--
> lib/efi_loader/efi_console.c | 58 ++++++++++++++++++++++++++------------------
> 2 files changed, 39 insertions(+), 25 deletions(-)
Reviewed-by: Simon Glass <sjg@chromium.org>
^ permalink raw reply [flat|nested] 46+ messages in thread
* [U-Boot] [PATCH v2 00/21] efi_loader: enough UEFI for standard distro boot
2017-09-10 11:21 [U-Boot] [PATCH v2 00/21] efi_loader: enough UEFI for standard distro boot Rob Clark
` (29 preceding siblings ...)
2017-09-10 11:21 ` [U-Boot] [PATCH v2 21/21] efi_loader: Some console improvements " Rob Clark
@ 2017-09-10 11:38 ` Rob Clark
30 siblings, 0 replies; 46+ messages in thread
From: Rob Clark @ 2017-09-10 11:38 UTC (permalink / raw)
To: u-boot
Blerg.. pls ignore the resend of "readdir" patchset which hitched a
ride on the git-send-email train.. apparently I should not send
patches in the morning before coffee..
BR,
-R
On Sun, Sep 10, 2017 at 7:21 AM, Rob Clark <robdclark@gmail.com> wrote:
> This patchset fleshes out EFI_LOADER enough to support booting an
> upstream \EFI\BOOT\bootaa64.efi (which then loads fallback.efi and
> then eventually the per-distro shim.efi which loads the per-distro
> grubaa64.efi) without resorting to hacks to hard-code u-boot to load
> a particular distro's grub, or other hacks like setting up the
> distro installation as live-media.
>
> Background: with a normal UEFI implementation, the boot process is:
>
> a) firmware (u-boot) looks at BootOrder and the BootXXXX variables
> to try to determine what to boot.
> b) the firmware will look at the BootXXXX variables (which contain
> an EFI_LOAD_OPTION "struct" in order specified by BootOrder, and
> will boot the first bootable option.
> c) The EFI_LOAD_OPTION specifies a device-path which identifies the
> device and file path of the .efi payload to exectute.
>
> This is implemented with the 'bootefi bootmgr' command.
>
> If there are no bootable options the firmware falls back to loading
> \EFI\BOOT\bootaa64.efi (exact name varies depending on arch), which
> for distro's using fallback/shim (which should include most modern
> linux distros) then loads fallback.efi which uses the
> EFI_SIMPLE_FILE_SYSTEM_PROTCOL and EFI_FILE_PROTOCOL to search for
> any \EFI\*\boot.csv, and will then set BootOrder and BootXXXX EFI
> variables accordingly so that on next boot fallback.efi is not
> necessary.
>
> The last 5 patches are a bit unrelated, just pulling forward some of
> the patches I have from the next patchset, to get Shell.efi and SCT
> working.
>
> Peter Jones (2):
> part: extract MBR signature from partitions
> efi: add some more device path structures
>
> Rob Clark (19):
> part: move efi_guid_t
> efi: add some missing __packed
> efi_loader: add device-path utils
> efi_loader: drop redundant efi_device_path_protocol
> efi_loader: flesh out device-path to text
> efi_loader: use proper device-paths for partitions
> efi_loader: use proper device-paths for net
> efi_loader: refactor boot device and loaded_image handling
> efi_loader: add file/filesys support
> efi_loader: support load_image() from a file-path
> efi_loader: make pool allocations cacheline aligned
> efi_loader: efi variable support
> efi_loader: add bootmgr
> efi_loader: file_path should be variable length
> efi_loader: set loaded image code/data type properly
> efi_loader: print GUIDs
> efi_loader: split out escape sequence based size query
> efi_loader: Correctly figure out size for vidconsole
> efi_loader: Some console improvements for vidconsole
>
> cmd/bootefi.c | 249 ++++++--------
> disk/part_dos.c | 12 +-
> disk/part_efi.c | 20 ++
> include/blk.h | 15 +
> include/config_distro_bootcmd.h | 5 +
> include/efi.h | 25 ++
> include/efi_api.h | 162 ++++++++-
> include/efi_loader.h | 62 +++-
> include/part.h | 3 +-
> include/part_efi.h | 4 -
> include/pe.h | 6 +
> lib/efi_loader/Makefile | 3 +-
> lib/efi_loader/efi_bootmgr.c | 169 ++++++++++
> lib/efi_loader/efi_boottime.c | 162 +++++++--
> lib/efi_loader/efi_console.c | 123 ++++---
> lib/efi_loader/efi_device_path.c | 563 +++++++++++++++++++++++++++++++
> lib/efi_loader/efi_device_path_to_text.c | 242 +++++++++----
> lib/efi_loader/efi_disk.c | 86 +++--
> lib/efi_loader/efi_file.c | 556 ++++++++++++++++++++++++++++++
> lib/efi_loader/efi_image_loader.c | 26 ++
> lib/efi_loader/efi_memory.c | 5 +-
> lib/efi_loader/efi_net.c | 24 +-
> lib/efi_loader/efi_runtime.c | 17 +-
> lib/efi_loader/efi_variable.c | 335 ++++++++++++++++++
> 24 files changed, 2520 insertions(+), 354 deletions(-)
> create mode 100644 lib/efi_loader/efi_bootmgr.c
> create mode 100644 lib/efi_loader/efi_device_path.c
> create mode 100644 lib/efi_loader/efi_file.c
> create mode 100644 lib/efi_loader/efi_variable.c
>
> --
> 2.13.5
>
^ permalink raw reply [flat|nested] 46+ messages in thread