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WIP/MINOR: mux-h2: implement the debug string for logs 

Now it permits to have this for a front and a back:

<134>Jul 30 19:32:53 haproxy[24405]: 127.0.0.1:64860 [30/Jul/2024:19:32:53.732] test2 test2/s1 0/0/0/0/0 200 130 - - ---- 2/1/0/0/0 0/0 "GET /blah HTTP/2.0"  h2s.id=1 .st=CLO .flg=0x7003 .rxbuf=0@(nil)+0/0 .sc=0x1e03fb0(.flg=0x00034482 .app=0x1e04020) .sd=0x1e03f30(.flg=0x50405601) .subs=(nil) h2c.st0=FRH .err=0 .maxid=1 .lastid=-1 .flg=0x100e00 .nbst=0 .nbsc=1, .glitches=0 .fctl_cnt=0 .send_cnt=0 .tree_cnt=1 .orph_cnt=0 .sub=1 .dsi=1 .dbuf=0@(nil)+0/0 .mbuf=[1..1|32],h=[0@(nil)+0/0],t=[0@(nil)+0/0] .task=(nil) conn.flg=0x80000300
<134>Jul 30 19:32:53 haproxy[24405]: 127.0.0.1:65246 [30/Jul/2024:19:32:53.732] test1 test1/s1 0/0/0/0/0 200 130 - - ---- 2/1/0/0/0 0/0 "GET /blah HTTP/1.1"  h2s.id=1 .st=CLO .flg=0x7003 .rxbuf=0@(nil)+0/0 .sc=0x1dfc7b0(.flg=0x0006d01b .app=0x1c65fe0) .sd=0x1dfc820(.flg=0x1040ca01) .subs=(nil) h2c.st0=FRH .err=0 .maxid=1 .lastid=-1 .flg=0x108e00 .nbst=0 .nbsc=1, .glitches=0 .fctl_cnt=0 .send_cnt=0 .tree_cnt=1 .orph_cnt=0 .sub=1 .dsi=1 .dbuf=0@(nil)+0/0 .mbuf=[1..1|32],h=[0@(nil)+0/0],t=[0@(nil)+0/0] .task=(nil) conn.flg=0x000300

Just with this in the front and back proxies respectively:
  log-format "$HAPROXY_HTTP_LOG_FMT %[bs.debug_str(15)]"
  log-format "$HAPROXY_HTTP_LOG_FMT %[fs.debug_str(15)]"

For now the mux only implements muxs, muxc, conn. Xprt is ignored.
This commit is contained in:
Willy Tarreau 2024-07-30 19:33:07 +02:00
parent 6d476574a0
commit ff04404e1f
1 changed files with 20 additions and 0 deletions
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20
src/mux_h2.c
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@ -521,6 +521,8 @@ struct task *h2_deferred_shut(struct task *t, void *ctx, unsigned int state);
static struct h2s *h2c_bck_stream_new(struct h2c *h2c, struct stconn *sc, struct session *sess);
static void h2s_alert(struct h2s *h2s);
static inline void h2_remove_from_list(struct h2s *h2s);
static int h2_dump_h2c_info(struct buffer *msg, struct h2c *h2c, const char *pfx);
static int h2_dump_h2s_info(struct buffer *msg, const struct h2s *h2s, const char *pfx);
/* returns the stconn associated to the H2 stream */
static forceinline struct stconn *h2s_sc(const struct h2s *h2s)
@ -4742,12 +4744,30 @@ static int h2_sctl(struct stconn *sc, enum mux_sctl_type mux_sctl, void *output)
{
int ret = 0;
struct h2s *h2s = __sc_mux_strm(sc);
union mux_sctl_dbg_str_ctx *dbg_ctx;
struct buffer *buf;
switch (mux_sctl) {
case MUX_SCTL_SID:
if (output)
*((int64_t *)output) = h2s->id;
return ret;
case MUX_SCTL_DBG_STR:
dbg_ctx = output;
buf = get_trash_chunk();
if (dbg_ctx->arg.debug_flags & MUX_SCTL_DBG_STR_L_MUXS)
h2_dump_h2s_info(buf, h2s, NULL);
if (dbg_ctx->arg.debug_flags & MUX_SCTL_DBG_STR_L_MUXC)
h2_dump_h2c_info(buf, h2s->h2c, NULL);
if (dbg_ctx->arg.debug_flags & MUX_SCTL_DBG_STR_L_CONN)
chunk_appendf(buf, " conn.flg=%#08x", h2s->h2c->conn->flags);
/* other layers not implemented */
dbg_ctx->ret.buf = *buf;
return ret;
default:
return -1;