On 02/11/2016 02:46 PM, yla...@apache.org wrote:
> Author: ylavic
> Date: Thu Feb 11 13:46:39 2016
> New Revision: 1729826
>
> URL: http://svn.apache.org/viewvc?rev=1729826&view=rev
> Log:
> mod_proxy: Play/restore the TLS-SNI on new backend connections which
> had to be issued because the remote closed the previous/reusable one
> during idle (keep-alive) time.
>
> Modified:
> httpd/httpd/trunk/CHANGES
> httpd/httpd/trunk/modules/proxy/proxy_util.c
>
> Modified: httpd/httpd/trunk/CHANGES
> URL:
> http://svn.apache.org/viewvc/httpd/httpd/trunk/CHANGES?rev=1729826&r1=1729825&r2=1729826&view=diff
> ==============================================================================
> --- httpd/httpd/trunk/CHANGES [utf-8] (original)
> +++ httpd/httpd/trunk/CHANGES [utf-8] Thu Feb 11 13:46:39 2016
> @@ -1,6 +1,10 @@
> -*- coding: utf-8
> -*-
> Changes with Apache 2.5.0
>
> + *) mod_proxy: Play/restore the TLS-SNI on new backend connections which
> + had to be issued because the remote closed the previous/reusable one
> + during idle (keep-alive) time. [Yann Ylavic]
> +
> *) mod_proxy_http2: new experimental http2 proxy module for h2: and h2c:
> proxy
> urls. Uses, so far, one connection per request, reuses connections.
>
>
> Modified: httpd/httpd/trunk/modules/proxy/proxy_util.c
> URL:
> http://svn.apache.org/viewvc/httpd/httpd/trunk/modules/proxy/proxy_util.c?rev=1729826&r1=1729825&r2=1729826&view=diff
> ==============================================================================
> --- httpd/httpd/trunk/modules/proxy/proxy_util.c (original)
> +++ httpd/httpd/trunk/modules/proxy/proxy_util.c Thu Feb 11 13:46:39 2016
> @@ -2717,12 +2717,18 @@ PROXY_DECLARE(int) ap_proxy_connect_back
>
> if (conn->sock) {
> if (!(connected = ap_proxy_is_socket_connected(conn->sock))) {
> - /* FIXME: this loses conn->ssl_hostname and it will not be
> - * restablished before the SSL connection is made -> no SNI! */
> + /* This clears conn->scpool (and associated data), so backup and
> + * restore any ssl_hostname for this connection set earlier by
> + * ap_proxy_determine_connection().
> + */
> + const char *ssl_hostname = conn->ssl_hostname;
conn->ssl_hostname might be allocated from conn->scpool.
So the pointer might be invalid after socket_cleanup(conn). So you need to
apr_pstrdup it first.
No real good idea which pool to use here. Probably create a temp subpool of
conn->pool,
strdup, after socket_cleanup dup with conn->scpool and destroy tmp pool.
> +
> socket_cleanup(conn);
> ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, s, APLOGNO(00951)
> "%s: backend socket is disconnected.",
> proxy_function);
> +
> + conn->ssl_hostname = apr_pstrdup(conn->scpool, ssl_hostname);
> }
> }
> while ((backend_addr || conn->uds_path) && !connected) {
>
>
>
Regards
Rüdiger
