MINOR: session: add stick counters to the struct session

The stick counters in the session will be used for everything not related
to contents, hence the connections / concurrent sessions / etc. They will
be usable by "tcp-request connection" rules even without a stream. For now
they're just allocated and initialized.

include/types/session.h

@@ -41,6 +41,7 @@ struct session {
 	enum obj_type *origin;          /* the connection / applet which initiated this session */
 	struct timeval accept_date;     /* date of the session's accept() in user date */
 	struct timeval tv_accept;       /* date of the session's accept() in internal date (monotonic) */
+	struct stkctr stkctr[MAX_SESS_STKCTR];  /* stick counters for tcp-connection */
 };
 
 #endif /* _TYPES_SESSION_H */

include/types/stream.h

@@ -139,7 +139,7 @@ struct stream {
 	int store_count;
 	/* 4 unused bytes here */
 
-	struct stkctr stkctr[MAX_SESS_STKCTR];  /* stick counters */
+	struct stkctr stkctr[MAX_SESS_STKCTR];  /* content-aware stick counters */
 
 	char **req_cap;                         /* array of captures from the request (may be NULL) */
 	char **res_cap;                         /* array of captures from the response (may be NULL) */

src/hlua.c

@@ -2035,6 +2035,8 @@ __LJMP static int hlua_socket_new(lua_State *L)
 
 	sess->accept_date = date; /* user-visible date for logging */
 	sess->tv_accept   = now;  /* corrected date for internal use */
+	memset(sess->stkctr, 0, sizeof(sess->stkctr));
+
 	socket->s = pool_alloc2(pool2_stream);
 	if (!socket->s) {
 		hlua_pusherror(L, "socket: out of memory");

src/peers.c

@@ -1127,6 +1127,7 @@ static struct stream *peer_session_create(struct peer *peer, struct peer_session
 	sess->fe = p;
 	sess->accept_date = date; /* user-visible date for logging */
 	sess->tv_accept = now;  /* corrected date for internal use */
+	memset(sess->stkctr, 0, sizeof(sess->stkctr));
 
 	if ((s = pool_alloc2(pool2_stream)) == NULL) { /* disable this proxy for a while */
 		Alert("out of memory in peer_session_create().\n");

src/stream.c

@@ -107,6 +107,7 @@ int stream_accept(struct listener *l, int cfd, struct sockaddr_storage *addr)
 	sess->origin = &cli_conn->obj_type;
 	sess->accept_date = date; /* user-visible date for logging */
 	sess->tv_accept   = now;  /* corrected date for internal use */
+	memset(sess->stkctr, 0, sizeof(sess->stkctr));
 
 	if (unlikely((s = pool_alloc2(pool2_stream)) == NULL))
 		goto out_free_sess;