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MINOR: frontend: switch to conn_get_{src,dst}() for logging and debugging

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The frontend accept code uses conn_get_{from,to}_addr for logging and
debugging, without really checking if the operation succeeds. In
preparation of future changes, let's switch to conn_get_{src,dst}() and
integrate status check for possible failures.
This commit is contained in:
Willy Tarreau 2019-07-17 11:25:46 +02:00
parent 2e34c11458
commit a0a4b09d08
1 changed files with 20 additions and 10 deletions
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30
src/frontend.c
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@ -65,19 +65,27 @@ int frontend_accept(struct stream *s)
if (!(s->logs.logwait &= ~(LW_CLIP|LW_INIT)))
s->do_log(s);
}
else if (conn && !conn_get_src(conn)) {
send_log(fe, LOG_INFO, "Connect from unknown source to listener %d (%s/%s)\n",
l->luid, fe->id, (fe->mode == PR_MODE_HTTP) ? "HTTP" : "TCP");
}
else if (conn) {
char pn[INET6_ADDRSTRLEN], sn[INET6_ADDRSTRLEN];
conn_get_from_addr(conn);
conn_get_to_addr(conn);
int port;
switch (addr_to_str(&conn->addr.from, pn, sizeof(pn))) {
case AF_INET:
case AF_INET6:
addr_to_str(&conn->addr.to, sn, sizeof(sn));
if (conn_get_dst(conn)) {
addr_to_str(&conn->addr.to, sn, sizeof(sn));
port = get_host_port(&conn->addr.to);
} else {
strcpy(sn, "undetermined address");
port = 0;
}
send_log(fe, LOG_INFO, "Connect from %s:%d to %s:%d (%s/%s)\n",
pn, get_host_port(&conn->addr.from),
sn, get_host_port(&conn->addr.to),
sn, port,
fe->id, (fe->mode == PR_MODE_HTTP) ? "HTTP" : "TCP");
break;
case AF_UNIX:
@ -97,11 +105,8 @@ int frontend_accept(struct stream *s)
const char *alpn_str = NULL;
int alpn_len;
conn_get_from_addr(conn);
/* try to report the ALPN value when available (also works for NPN) */
if (conn && conn == cs_conn(objt_cs(s->si[0].end))) {
if (conn == cs_conn(objt_cs(s->si[0].end))) {
if (conn_get_alpn(conn, &alpn_str, &alpn_len) && alpn_str) {
int len = MIN(alpn_len, sizeof(alpn) - 1);
memcpy(alpn, alpn_str, len);
@ -109,7 +114,12 @@ int frontend_accept(struct stream *s)
}
}
switch (addr_to_str(&conn->addr.from, pn, sizeof(pn))) {
if (!conn_get_src(conn)) {
chunk_printf(&trash, "%08x:%s.accept(%04x)=%04x from [listener:%d] ALPN=%s\n",
s->uniq_id, fe->id, (unsigned short)l->fd, (unsigned short)conn->handle.fd,
l->luid, alpn);
}
else switch (addr_to_str(&conn->addr.from, pn, sizeof(pn))) {
case AF_INET:
case AF_INET6:
chunk_printf(&trash, "%08x:%s.accept(%04x)=%04x from [%s:%d] ALPN=%s\n",