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BUG/MEDIUM: spoe: Always retry when an applet fails to send a frame

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This bug is related to the previous one ("BUG/MEDIUM: spoe: Always retry
when an applet fails to send a frame"). applet_putblk() function retruns -1
on error and it should always be interpreted as a missing of room in the
buffer. However, on the spoe, this was processed as an I/O error.

This patch must be backported as far as 2.8.
This commit is contained in:
Christopher Faulet 2024-04-18 08:58:55 +02:00
parent 40aa87a28f
commit 4fd656e311
1 changed files with 2 additions and 10 deletions
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12
src/flt_spoe.c
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@ -1131,7 +1131,6 @@ spoe_handle_healthcheck_response(char *frame, size_t size, char *err, int errlen
static int
spoe_send_frame(struct appctx *appctx, char *buf, size_t framesz)
{
struct stconn *sc = appctx_sc(appctx);
int ret;
uint32_t netint;
@ -1140,15 +1139,8 @@ spoe_send_frame(struct appctx *appctx, char *buf, size_t framesz)
netint = htonl(framesz);
memcpy(buf, (char *)&netint, 4);
ret = applet_putblk(appctx, buf, framesz+4);
if (ret <= 0) {
if (ret == -3 && b_is_null(&sc_ic(sc)->buf)) {
/* WT: is this still needed for the case ret==-3 ? */
sc_need_room(sc, 0);
return 1; /* retry */
}
SPOE_APPCTX(appctx)->status_code = SPOE_FRM_ERR_IO;
return -1; /* error */
}
if (ret <= 0)
return 1; /* retry */
return framesz;
}