> Am 11.02.2016 um 15:10 schrieb Ruediger Pluem <rpl...@apache.org>:
>
>
>
> 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.
I only dup'ed it once into a stack pointer. So, I used the r->pool for that.
>
>> +
>> 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
