[PATCHv5 12/13] net/lwip: replace original net commands with lwip

Maxim Uvarov
2023-08-02T14:11:45Z

Replace original commands: ping, tftp, dhcp and wget.

Signed-off-by: Maxim Uvarov <maxim.uvarov@linaro.org>
---
boot/bootmeth_efi.c | 2 +-
boot/bootmeth_pxe.c | 2 +-
cmd/net.c | 86 +++++----------------------------------------
cmd/pxe.c | 2 +-
include/net.h | 8 +++--
include/net/lwip.h | 5 +++
lib/Makefile | 2 --
lib/lwip/ulwip.h | 9 +++++
8 files changed, 31 insertions(+), 85 deletions(-)
create mode 100644 include/net/lwip.h
create mode 100644 lib/lwip/ulwip.h

diff --git a/boot/bootmeth_efi.c b/boot/bootmeth_efi.c
index af31fbfc85..83334991bb 100644
--- a/boot/bootmeth_efi.c
+++ b/boot/bootmeth_efi.c
@@ -340,7 +340,7 @@ static int distro_efi_read_bootflow_net(struct bootflow *bflow)
if (!bflow->fdt_fname)
return log_msg_ret("fil", -ENOMEM);

- if (!do_tftpb(&cmdtp, 0, 3, tftp_argv)) {
+ if (!do_lwip_tftp(&cmdtp, 0, 3, tftp_argv)) {
bflow->fdt_size = env_get_hex("filesize", 0);
bflow->fdt_addr = fdt_addr;
} else {
diff --git a/boot/bootmeth_pxe.c b/boot/bootmeth_pxe.c
index ce986bd260..881d2167a6 100644
--- a/boot/bootmeth_pxe.c
+++ b/boot/bootmeth_pxe.c
@@ -123,7 +123,7 @@ static int extlinux_pxe_read_file(struct udevice *dev, struct bootflow *bflow,
tftp_argv[1] = file_addr;
tftp_argv[2] = (void *)file_path;

- if (do_tftpb(ctx->cmdtp, 0, 3, tftp_argv))
+ if (do_lwip_tftp(ctx->cmdtp, 0, 3, tftp_argv))
return -ENOENT;
ret = pxe_get_file_size(&size);
if (ret)
diff --git a/cmd/net.c b/cmd/net.c
index d407d8320a..dc5a114309 100644
--- a/cmd/net.c
+++ b/cmd/net.c
@@ -22,6 +22,7 @@
#include <net/udp.h>
#include <net/sntp.h>
#include <net/ncsi.h>
+#include <net/lwip.h>

static int netboot_common(enum proto_t, struct cmd_tbl *, int, char * const []);

@@ -40,19 +41,9 @@ U_BOOT_CMD(
#endif

#ifdef CONFIG_CMD_TFTPBOOT
-int do_tftpb(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
-{
- int ret;
-
- bootstage_mark_name(BOOTSTAGE_KERNELREAD_START, "tftp_start");
- ret = netboot_common(TFTPGET, cmdtp, argc, argv);
- bootstage_mark_name(BOOTSTAGE_KERNELREAD_STOP, "tftp_done");
- return ret;
-}
-
#if IS_ENABLED(CONFIG_IPV6)
U_BOOT_CMD(
- tftpboot, 4, 1, do_tftpb,
+ tftpboot, 4, 1, do_lwip_tftp,
"boot image via network using TFTP protocol\n"
"To use IPv6 add -ipv6 parameter or use IPv6 hostIPaddr framed "
"with [] brackets",
@@ -60,7 +51,7 @@ U_BOOT_CMD(
);
#else
U_BOOT_CMD(
- tftpboot, 3, 1, do_tftpb,
+ tftpboot, 3, 1, do_lwip_tftp,
"load file via network using TFTP protocol",
"[loadAddress] [[hostIPaddr:]bootfilename]"
);
@@ -139,7 +130,7 @@ U_BOOT_CMD(dhcp6, 3, 1, do_dhcp6,
static int do_dhcp(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
- return netboot_common(DHCP, cmdtp, argc, argv);
+ return do_lwip_dhcp();
}

U_BOOT_CMD(
@@ -196,13 +187,11 @@ U_BOOT_CMD(
#endif

#if defined(CONFIG_CMD_WGET)
-static int do_wget(struct cmd_tbl *cmdtp, int flag, int argc, char * const argv[])
-{
- return netboot_common(WGET, cmdtp, argc, argv);
-}
+int do_lwip_wget(struct cmd_tbl *cmdtp, int flag, int argc,
+ char *const argv[]);

U_BOOT_CMD(
- wget, 3, 1, do_wget,
+ wget, 3, 1, do_lwip_wget,
"boot image via network using HTTP protocol",
"[loadAddress] [[hostIPaddr:]path and image name]"
);
@@ -456,28 +445,8 @@ static int netboot_common(enum proto_t proto, struct cmd_tbl *cmdtp, int argc,
}

#if defined(CONFIG_CMD_PING)
-static int do_ping(struct cmd_tbl *cmdtp, int flag, int argc,
- char *const argv[])
-{
- if (argc < 2)
- return CMD_RET_USAGE;
-
- net_ping_ip = string_to_ip(argv[1]);
- if (net_ping_ip.s_addr == 0)
- return CMD_RET_USAGE;
-
- if (net_loop(PING) < 0) {
- printf("ping failed; host %s is not alive\n", argv[1]);
- return CMD_RET_FAILURE;
- }
-
- printf("host %s is alive\n", argv[1]);
-
- return CMD_RET_SUCCESS;
-}
-
U_BOOT_CMD(
- ping, 2, 1, do_ping,
+ ping, 2, 1, do_lwip_ping,
"send ICMP ECHO_REQUEST to network host",
"pingAddress"
);
@@ -601,45 +570,8 @@ U_BOOT_CMD(
#endif

#if defined(CONFIG_CMD_DNS)
-int do_dns(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
-{
- if (argc == 1)
- return CMD_RET_USAGE;
-
- /*
- * We should check for a valid hostname:
- * - Each label must be between 1 and 63 characters long
- * - the entire hostname has a maximum of 255 characters
- * - only the ASCII letters 'a' through 'z' (case-insensitive),
- * the digits '0' through '9', and the hyphen
- * - cannot begin or end with a hyphen
- * - no other symbols, punctuation characters, or blank spaces are
- * permitted
- * but hey - this is a minimalist implmentation, so only check length
- * and let the name server deal with things.
- */
- if (strlen(argv[1]) >= 255) {
- printf("dns error: hostname too long\n");
- return CMD_RET_FAILURE;
- }
-
- net_dns_resolve = argv[1];
-
- if (argc == 3)
- net_dns_env_var = argv[2];
- else
- net_dns_env_var = NULL;
-
- if (net_loop(DNS) < 0) {
- printf("dns lookup of %s failed, check setup\n", argv[1]);
- return CMD_RET_FAILURE;
- }
-
- return CMD_RET_SUCCESS;
-}
-
U_BOOT_CMD(
- dns, 3, 1, do_dns,
+ dns, 3, 1, do_lwip_dns,
"lookup the IP of a hostname",
"hostname [envvar]"
);
diff --git a/cmd/pxe.c b/cmd/pxe.c
index 677142520b..a31fbd7e40 100644
--- a/cmd/pxe.c
+++ b/cmd/pxe.c
@@ -42,7 +42,7 @@ static int do_get_tftp(struct pxe_context *ctx, const char *file_path,
num_args = 3;
}

- if (do_tftpb(ctx->cmdtp, 0, num_args, tftp_argv))
+ if (do_lwip_tftp(ctx->cmdtp, 0, num_args, tftp_argv))
return -ENOENT;

ret = pxe_get_file_size(sizep);
diff --git a/include/net.h b/include/net.h
index e254df7d7f..de7baeb121 100644
--- a/include/net.h
+++ b/include/net.h
@@ -54,8 +54,10 @@ struct in_addr {
__be32 s_addr;
};

+int do_lwip_dhcp(void);
+
/**
- * do_tftpb - Run the tftpboot command
+ * do_lwip_tftp - Run the tftpboot command
*
* @cmdtp: Command information for tftpboot
* @flag: Command flags (CMD_FLAG_...)
@@ -63,7 +65,7 @@ struct in_addr {
* @argv: List of arguments
* Return: result (see enum command_ret_t)
*/
-int do_tftpb(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]);
+int do_lwip_tftp(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]);

/**
* dhcp_run() - Run DHCP on the current ethernet device
@@ -514,7 +516,7 @@ extern int net_restart_wrap; /* Tried all network devices */
enum proto_t {
BOOTP, RARP, ARP, TFTPGET, DHCP, DHCP6, PING, PING6, DNS, NFS, CDP,
NETCONS, SNTP, TFTPSRV, TFTPPUT, LINKLOCAL, FASTBOOT_UDP, FASTBOOT_TCP,
- WOL, UDP, NCSI, WGET, RS
+ WOL, UDP, NCSI, WGET, RS, LWIP
};

extern char net_boot_file_name[1024];/* Boot File name */
diff --git a/include/net/lwip.h b/include/net/lwip.h
new file mode 100644
index 0000000000..6686a52bfc
--- /dev/null
+++ b/include/net/lwip.h
@@ -0,0 +1,5 @@
+
+int do_lwip_ping(struct cmd_tbl *cmdtp, int flag, int argc,
+ char *const argv[]);
+int do_lwip_dns(struct cmd_tbl *cmdtp, int flag, int argc,
+ char *const argv[]);
diff --git a/lib/Makefile b/lib/Makefile
index 598b5755dd..414f171e74 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -93,8 +93,6 @@ obj-$(CONFIG_LIBAVB) += libavb/
obj-$(CONFIG_$(SPL_TPL_)OF_LIBFDT) += libfdt/
obj-$(CONFIG_$(SPL_TPL_)OF_REAL) += fdtdec_common.o fdtdec.o

-obj-y += lwip/
-
ifdef CONFIG_SPL_BUILD
obj-$(CONFIG_SPL_YMODEM_SUPPORT) += crc16-ccitt.o
obj-$(CONFIG_$(SPL_TPL_)HASH) += crc16-ccitt.o
diff --git a/lib/lwip/ulwip.h b/lib/lwip/ulwip.h
new file mode 100644
index 0000000000..11ca52aa1f
--- /dev/null
+++ b/lib/lwip/ulwip.h
@@ -0,0 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+int ulwip_enabled(void);
+int ulwip_in_loop(void);
+int ulwip_loop_set(int loop);
+int ulwip_exit(int err);
+int uboot_lwip_poll(void);
+int ulwip_app_get_err(void);
+void ulwip_set_tmo(int (*tmo)(void));
--
2.30.2