BUG/MINOR: proxy: fix source interface and usesrc leaks on deinit()

proxy conn_src.iface_name was only freed in proxy_free_defaults(), whereas
proxy conn_src.bind_hdr_name was only freed in free_proxy().

Because of that, using "source usesrc hdr_ip()" in a default proxy, or
"source interface" in a regular or default proxy would cause memory leaks
during deinit.

It may be backported to all stable versions.

(cherry picked from commit 1aa2190)
Signed-off-by: Christopher Faulet <[email protected]>

Author: Darlelet

src/proxy.c

@@ -226,6 +226,7 @@ void free_proxy(struct proxy *p)
 	free_email_alert(p);
 	free(p->invalid_rep);
 	free(p->invalid_req);
+	ha_free(&p->conn_src.iface_name);
 #if defined(CONFIG_HAP_TRANSPARENT)
 	free(p->conn_src.bind_hdr_name);
 #endif
@@ -1454,6 +1455,9 @@ void proxy_free_defaults(struct proxy *defproxy)
 	istfree(&defproxy->monitor_uri);
 	ha_free(&defproxy->defbe.name);
 	ha_free(&defproxy->conn_src.iface_name);
+#if defined(CONFIG_HAP_TRANSPARENT)
+	ha_free(&defproxy->conn_src.bind_hdr_name);
+#endif
 	istfree(&defproxy->server_id_hdr_name);
 
 	http_ext_clean(defproxy);