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net: lwip: tftp: time out if there is no reply from server

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When there is no reply from the TFTP server, do_tftpb() should
eventually time out. Add a 10 second timer for that purpose.

Reported-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
This commit is contained in:
Jerome Forissier
2025-04-28 11:24:07 +02:00
parent 1bc91fa98c
commit 722e41ad99
1 changed files with 15 additions and 0 deletions
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15
net/lwip/tftp.c
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@@ -16,6 +16,8 @@
#include <time.h>
#define PROGRESS_PRINT_STEP_BYTES (10 * 1024)
/* Max time to wait for first data packet from server */
#define NO_RSP_TIMEOUT_MS 10000
enum done_state {
NOT_DONE = 0,
@@ -140,6 +142,17 @@ static const struct tftp_context tftp_context = {
tftp_error
};
static void no_response(void *arg)
{
struct tftp_ctx *ctx = (struct tftp_ctx *)arg;
if (ctx->size)
return;
printf("Timeout!\n");
ctx->done = FAILURE;
}
static int tftp_loop(struct udevice *udev, ulong addr, char *fname,
ip_addr_t srvip, uint16_t srvport)
{
@@ -184,6 +197,7 @@ static int tftp_loop(struct udevice *udev, ulong addr, char *fname,
return -1;
}
sys_timeout(NO_RSP_TIMEOUT_MS, no_response, &ctx);
while (!ctx.done) {
net_lwip_rx(udev, netif);
sys_check_timeouts();
@@ -193,6 +207,7 @@ static int tftp_loop(struct udevice *udev, ulong addr, char *fname,
break;
}
}
sys_untimeout(no_response, (void *)&ctx);
tftp_cleanup();