From: Isaac Lozano <109lozanoi@gmail.com>
To: qemu-devel@nongnu.org
Cc: kraxel@redhat.com, bsd@redhat.com
Subject: [Qemu-devel] [PATCH] usb-mtp: added support for files larger than 4gb
Date: Thu, 14 Jul 2016 04:49:57 -0700 [thread overview]
Message-ID: <20160714114956.GA5245@gmail.com> (raw)
Added support for sending data larger than 4gb. Also implemented
object properties so that Windows can receive >4gb files.
Signed-off-by: Isaac Lozano <109lozanoi@gmail.com>
---
hw/usb/dev-mtp.c | 196 +++++++++++++++++++++++++++++++++++++++++++++++++++++--
1 file changed, 191 insertions(+), 5 deletions(-)
diff --git a/hw/usb/dev-mtp.c b/hw/usb/dev-mtp.c
index 1be85ae..f9259d7 100644
--- a/hw/usb/dev-mtp.c
+++ b/hw/usb/dev-mtp.c
@@ -48,6 +48,9 @@ enum mtp_code {
CMD_GET_OBJECT_INFO = 0x1008,
CMD_GET_OBJECT = 0x1009,
CMD_GET_PARTIAL_OBJECT = 0x101b,
+ CMD_GET_OBJECT_PROPS_SUPPORTED = 0x9801,
+ CMD_GET_OBJECT_PROP_DESC = 0x9802,
+ CMD_GET_OBJECT_PROP_VALUE = 0x9803,
/* response codes */
RES_OK = 0x2001,
@@ -59,6 +62,7 @@ enum mtp_code {
RES_INCOMPLETE_TRANSFER = 0x2007,
RES_INVALID_STORAGE_ID = 0x2008,
RES_INVALID_OBJECT_HANDLE = 0x2009,
+ RES_INVALID_OBJECT_FORMAT_CODE = 0x200b,
RES_SPEC_BY_FORMAT_UNSUPPORTED = 0x2014,
RES_INVALID_PARENT_OBJECT = 0x201a,
RES_INVALID_PARAMETER = 0x201d,
@@ -72,6 +76,22 @@ enum mtp_code {
EVT_OBJ_ADDED = 0x4002,
EVT_OBJ_REMOVED = 0x4003,
EVT_OBJ_INFO_CHANGED = 0x4007,
+
+ /* object properties */
+ PROP_STORAGE_ID = 0xDC01,
+ PROP_OBJECT_FORMAT = 0xDC02,
+ PROP_OBJECT_COMPRESSED_SIZE = 0xDC04,
+ PROP_PARENT_OBJECT = 0xDC0B,
+ PROP_PERSISTENT_UNIQUE_OBJECT_IDENTIFIER = 0xDC41,
+ PROP_NAME = 0xDC44,
+};
+
+enum mtp_data_type {
+ DATA_TYPE_UINT16 = 0x0004,
+ DATA_TYPE_UINT32 = 0x0006,
+ DATA_TYPE_UINT64 = 0x0008,
+ DATA_TYPE_UINT128 = 0x000a,
+ DATA_TYPE_STRING = 0xffff,
};
typedef struct {
@@ -115,8 +135,8 @@ struct MTPControl {
struct MTPData {
uint16_t code;
uint32_t trans;
- uint32_t offset;
- uint32_t length;
+ uint64_t offset;
+ uint64_t length;
uint32_t alloc;
uint8_t *data;
bool first;
@@ -778,6 +798,9 @@ static MTPData *usb_mtp_get_device_info(MTPState *s, MTPControl *c)
CMD_GET_OBJECT_INFO,
CMD_GET_OBJECT,
CMD_GET_PARTIAL_OBJECT,
+ CMD_GET_OBJECT_PROPS_SUPPORTED,
+ CMD_GET_OBJECT_PROP_DESC,
+ CMD_GET_OBJECT_PROP_VALUE,
};
static const uint16_t fmt[] = {
FMT_UNDEFINED_OBJECT,
@@ -883,7 +906,12 @@ static MTPData *usb_mtp_get_object_info(MTPState *s, MTPControl *c,
usb_mtp_add_u32(d, QEMU_STORAGE_ID);
usb_mtp_add_u16(d, o->format);
usb_mtp_add_u16(d, 0);
- usb_mtp_add_u32(d, o->stat.st_size);
+
+ if (o->stat.st_size > 0xFFFFFFFF) {
+ usb_mtp_add_u32(d, 0xFFFFFFFF);
+ } else {
+ usb_mtp_add_u32(d, o->stat.st_size);
+ }
usb_mtp_add_u16(d, 0);
usb_mtp_add_u32(d, 0);
@@ -966,6 +994,122 @@ static MTPData *usb_mtp_get_partial_object(MTPState *s, MTPControl *c,
return d;
}
+static MTPData *usb_mtp_get_object_props_supported(MTPState *s, MTPControl *c)
+{
+ static const uint16_t props[] = {
+ PROP_STORAGE_ID,
+ PROP_OBJECT_FORMAT,
+ PROP_OBJECT_COMPRESSED_SIZE,
+ PROP_PARENT_OBJECT,
+ PROP_PERSISTENT_UNIQUE_OBJECT_IDENTIFIER,
+ PROP_NAME,
+ };
+ MTPData *d = usb_mtp_data_alloc(c);
+ usb_mtp_add_u16_array(d, ARRAY_SIZE(props), props);
+
+ return d;
+}
+
+static MTPData *usb_mtp_get_object_prop_desc(MTPState *s, MTPControl *c)
+{
+ MTPData *d = usb_mtp_data_alloc(c);
+ switch (c->argv[0]) {
+ case PROP_STORAGE_ID:
+ usb_mtp_add_u16(d, PROP_STORAGE_ID);
+ usb_mtp_add_u16(d, DATA_TYPE_UINT32);
+ usb_mtp_add_u8(d, 0x00);
+ usb_mtp_add_u32(d, 0x00000000);
+ usb_mtp_add_u32(d, 0x00000000);
+ usb_mtp_add_u8(d, 0x00);
+ break;
+ case PROP_OBJECT_FORMAT:
+ usb_mtp_add_u16(d, PROP_OBJECT_FORMAT);
+ usb_mtp_add_u16(d, DATA_TYPE_UINT16);
+ usb_mtp_add_u8(d, 0x00);
+ usb_mtp_add_u16(d, 0x0000);
+ usb_mtp_add_u32(d, 0x00000000);
+ usb_mtp_add_u8(d, 0x00);
+ break;
+ case PROP_OBJECT_COMPRESSED_SIZE:
+ usb_mtp_add_u16(d, PROP_OBJECT_COMPRESSED_SIZE);
+ usb_mtp_add_u16(d, DATA_TYPE_UINT64);
+ usb_mtp_add_u8(d, 0x00);
+ usb_mtp_add_u64(d, 0x0000000000000000);
+ usb_mtp_add_u32(d, 0x00000000);
+ usb_mtp_add_u8(d, 0x00);
+ break;
+ case PROP_PARENT_OBJECT:
+ usb_mtp_add_u16(d, PROP_PARENT_OBJECT);
+ usb_mtp_add_u16(d, DATA_TYPE_UINT32);
+ usb_mtp_add_u8(d, 0x00);
+ usb_mtp_add_u32(d, 0x00000000);
+ usb_mtp_add_u32(d, 0x00000000);
+ usb_mtp_add_u8(d, 0x00);
+ break;
+ case PROP_PERSISTENT_UNIQUE_OBJECT_IDENTIFIER:
+ usb_mtp_add_u16(d, PROP_PERSISTENT_UNIQUE_OBJECT_IDENTIFIER);
+ usb_mtp_add_u16(d, DATA_TYPE_UINT128);
+ usb_mtp_add_u8(d, 0x00);
+ usb_mtp_add_u64(d, 0x0000000000000000);
+ usb_mtp_add_u64(d, 0x0000000000000000);
+ usb_mtp_add_u32(d, 0x00000000);
+ usb_mtp_add_u8(d, 0x00);
+ break;
+ case PROP_NAME:
+ usb_mtp_add_u16(d, PROP_NAME);
+ usb_mtp_add_u16(d, DATA_TYPE_STRING);
+ usb_mtp_add_u8(d, 0x00);
+ usb_mtp_add_u8(d, 0x00);
+ usb_mtp_add_u32(d, 0x00000000);
+ usb_mtp_add_u8(d, 0x00);
+ break;
+ default:
+ usb_mtp_data_free(d);
+ return NULL;
+ }
+
+ return d;
+}
+
+static MTPData *usb_mtp_get_object_prop_value(MTPState *s, MTPControl *c,
+ MTPObject *o)
+{
+ MTPData *d = usb_mtp_data_alloc(c);
+ switch (c->argv[1]) {
+ case PROP_STORAGE_ID:
+ usb_mtp_add_u32(d, QEMU_STORAGE_ID);
+ break;
+ case PROP_OBJECT_FORMAT:
+ usb_mtp_add_u16(d, o->format);
+ break;
+ case PROP_OBJECT_COMPRESSED_SIZE:
+ usb_mtp_add_u64(d, o->stat.st_size);
+ break;
+ case PROP_PARENT_OBJECT:
+ if (o->parent == NULL) {
+ usb_mtp_add_u32(d, 0x00000000);
+ } else {
+ usb_mtp_add_u32(d, o->parent->handle);
+ }
+ break;
+ case PROP_PERSISTENT_UNIQUE_OBJECT_IDENTIFIER:
+ /* Should be persistant between sessions,
+ * but using our objedt ID is "good enough"
+ * for now */
+ usb_mtp_add_u64(d, 0x0000000000000000);
+ usb_mtp_add_u64(d, o->handle);
+ break;
+ case PROP_NAME:
+ usb_mtp_add_str(d, o->name);
+ break;
+ default:
+ usb_mtp_data_free(d);
+ return NULL;
+ }
+
+ return d;
+}
+
static void usb_mtp_command(MTPState *s, MTPControl *c)
{
MTPData *data_in = NULL;
@@ -1113,6 +1257,43 @@ static void usb_mtp_command(MTPState *s, MTPControl *c)
nres = 1;
res0 = data_in->length;
break;
+ case CMD_GET_OBJECT_PROPS_SUPPORTED:
+ if (c->argv[0] != FMT_UNDEFINED_OBJECT &&
+ c->argv[0] != FMT_ASSOCIATION) {
+ usb_mtp_queue_result(s, RES_INVALID_OBJECT_FORMAT_CODE,
+ c->trans, 0, 0, 0);
+ return;
+ }
+ data_in = usb_mtp_get_object_props_supported(s, c);
+ break;
+ case CMD_GET_OBJECT_PROP_DESC:
+ if (c->argv[1] != FMT_UNDEFINED_OBJECT &&
+ c->argv[1] != FMT_ASSOCIATION) {
+ usb_mtp_queue_result(s, RES_INVALID_OBJECT_FORMAT_CODE,
+ c->trans, 0, 0, 0);
+ return;
+ }
+ data_in = usb_mtp_get_object_prop_desc(s, c);
+ if (data_in == NULL) {
+ usb_mtp_queue_result(s, RES_GENERAL_ERROR,
+ c->trans, 0, 0, 0);
+ return;
+ }
+ break;
+ case CMD_GET_OBJECT_PROP_VALUE:
+ o = usb_mtp_object_lookup(s, c->argv[0]);
+ if (o == NULL) {
+ usb_mtp_queue_result(s, RES_INVALID_OBJECT_HANDLE,
+ c->trans, 0, 0, 0);
+ return;
+ }
+ data_in = usb_mtp_get_object_prop_value(s, c, o);
+ if (data_in == NULL) {
+ usb_mtp_queue_result(s, RES_GENERAL_ERROR,
+ c->trans, 0, 0, 0);
+ return;
+ }
+ break;
default:
trace_usb_mtp_op_unknown(s->dev.addr, c->code);
usb_mtp_queue_result(s, RES_OPERATION_NOT_SUPPORTED,
@@ -1193,10 +1374,15 @@ static void usb_mtp_handle_data(USBDevice *dev, USBPacket *p)
}
if (s->data_in != NULL) {
MTPData *d = s->data_in;
- int dlen = d->length - d->offset;
+ uint64_t dlen = d->length - d->offset;
if (d->first) {
trace_usb_mtp_data_in(s->dev.addr, d->trans, d->length);
- container.length = cpu_to_le32(d->length + sizeof(container));
+ if (d->length + sizeof(container) > 0xFFFFFFFF) {
+ container.length = cpu_to_le32(0xFFFFFFFF);
+ } else {
+ container.length = cpu_to_le32(d->length +
+ sizeof(container));
+ }
container.type = cpu_to_le16(TYPE_DATA);
container.code = cpu_to_le16(d->code);
container.trans = cpu_to_le32(d->trans);
--
2.8.3
next reply other threads:[~2016-07-14 11:50 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-14 11:49 Isaac Lozano [this message]
2016-07-14 14:34 ` [Qemu-devel] [PATCH] usb-mtp: added support for files larger than 4gb Gerd Hoffmann
2016-07-14 18:48 ` Bandan Das
2016-07-14 18:46 ` Bandan Das
2016-07-15 11:30 ` Isaac Lozano
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20160714114956.GA5245@gmail.com \
--to=109lozanoi@gmail.com \
--cc=bsd@redhat.com \
--cc=kraxel@redhat.com \
--cc=qemu-devel@nongnu.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.