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Resolves: RHEL-53632 - RFE: httpd, add IP_FREEBIND support for Listen

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Resolves: RHEL-53722 - [RFE] ProxyWebsocketIdleTimeout from
  httpd mod_proxy_wstunnel
This commit is contained in:
Luboš Uhliarik 2024-08-08 21:34:04 +02:00
parent 239a3e0f11
commit a7f0464790
3 changed files with 243 additions and 1 deletions
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124
httpd-2.4.62-freebind.patch Normal file
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@ -0,0 +1,124 @@
diff --git a/docs/manual/mod/mpm_common.html.en b/docs/manual/mod/mpm_common.html.en
index d7a2fea..c911a4e 100644
--- a/docs/manual/mod/mpm_common.html.en
+++ b/docs/manual/mod/mpm_common.html.en
@@ -42,6 +42,7 @@ more than one multi-processing module (MPM)</td></tr>
<li><img alt="" src="../images/down.gif" /> <a href="#enableexceptionhook">EnableExceptionHook</a></li>
<li><img alt="" src="../images/down.gif" /> <a href="#gracefulshutdowntimeout">GracefulShutdownTimeout</a></li>
<li><img alt="" src="../images/down.gif" /> <a href="#listen">Listen</a></li>
+<li><img alt="" src="../images/down.gif" /> <a href="#listenfree">ListenFree</a></li>
<li><img alt="" src="../images/down.gif" /> <a href="#listenbacklog">ListenBackLog</a></li>
<li><img alt="" src="../images/down.gif" /> <a href="#listencoresbucketsratio">ListenCoresBucketsRatio</a></li>
<li><img alt="" src="../images/down.gif" /> <a href="#maxconnectionsperchild">MaxConnectionsPerChild</a></li>
@@ -244,6 +245,31 @@ discussion of the <code>Address already in use</code> error message,
including other causes.</a></li>
</ul>
</div>
+
+<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
+<div class="directive-section"><h2><a name="ListenFree" id="ListenFree">ListenFree</a> <a name="listenfree" id="listenfree">Directive</a></h2>
+<table class="directive">
+<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>IP addresses and ports that the server
+listens to. Doesn't require IP address to be up</td></tr>
+<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>ListenFree [<var>IP-address</var>:]<var>portnumber</var> [<var>protocol</var>]</code></td></tr>
+<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config</td></tr>
+<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>MPM</td></tr>
+<tr><th><a href="directive-dict.html#Module">Module:</a></th><td><code class="module"><a href="../mod/event.html">event</a></code>, <code class="module"><a href="../mod/worker.html">worker</a></code>, <code class="module"><a href="../mod/prefork.html">prefork</a></code>, <code class="module"><a href="../mod/mpm_winnt.html">mpm_winnt</a></code>, <code class="module"><a href="../mod/mpm_netware.html">mpm_netware</a></code>, <code class="module"><a href="../mod/mpmt_os2.html">mpmt_os2</a></code></td></tr>
+<tr><th><a href="directive-dict.html#Compatibility">Compatibility:</a></th><td>This directive is currently available only in Red Hat Enterprise Linux</td></tr>
+</table>
+ <p>The <code class="directive">ListenFree</code> directive is
+ identical to the <code class="directive">Listen</code> directive.
+ The only difference is in the usage of the IP_FREEBIND socket
+ option, which is enabled by default with <code class="directive">ListenFree</code>.
+ If IP_FREEBIND is enabled, it allows httpd to bind to an IP
+ address that is nonlocal or does not (yet) exist. This allows httpd to
+ listen on a socket without requiring the underlying network interface
+ or the specified dynamic IP address to be up at the time when httpd
+ is trying to bind to it.
+ </p>
+</div>
+
+
<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
<div class="directive-section"><h2><a name="ListenBackLog" id="ListenBackLog">ListenBackLog</a> <a name="listenbacklog" id="listenbacklog">Directive</a></h2>
<table class="directive">
diff --git a/include/ap_listen.h b/include/ap_listen.h
index d5ed968..be1a60c 100644
--- a/include/ap_listen.h
+++ b/include/ap_listen.h
@@ -138,6 +138,9 @@ AP_DECLARE_NONSTD(const char *) ap_set_listenbacklog(cmd_parms *cmd, void *dummy
AP_DECLARE_NONSTD(const char *) ap_set_listencbratio(cmd_parms *cmd, void *dummy, const char *arg);
AP_DECLARE_NONSTD(const char *) ap_set_listener(cmd_parms *cmd, void *dummy,
int argc, char *const argv[]);
+AP_DECLARE_NONSTD(const char *) ap_set_freelistener(cmd_parms *cmd, void *dummy,
+ int argc, char *const argv[]);
+
AP_DECLARE_NONSTD(const char *) ap_set_send_buffer_size(cmd_parms *cmd, void *dummy,
const char *arg);
AP_DECLARE_NONSTD(const char *) ap_set_receive_buffer_size(cmd_parms *cmd,
@@ -160,6 +163,8 @@ AP_INIT_TAKE1("ListenCoresBucketsRatio", ap_set_listencbratio, NULL, RSRC_CONF,
"Ratio between the number of CPU cores (online) and the number of listeners buckets"), \
AP_INIT_TAKE_ARGV("Listen", ap_set_listener, NULL, RSRC_CONF, \
"A port number or a numeric IP address and a port number, and an optional protocol"), \
+AP_INIT_TAKE_ARGV("ListenFree", ap_set_freelistener, NULL, RSRC_CONF, \
+ "A port number or a numeric IP address and a port number, and an optional protocol"), \
AP_INIT_TAKE1("SendBufferSize", ap_set_send_buffer_size, NULL, RSRC_CONF, \
"Send buffer size in bytes"), \
AP_INIT_TAKE1("ReceiveBufferSize", ap_set_receive_buffer_size, NULL, \
diff --git a/server/listen.c b/server/listen.c
index 2a4e87a..280bbe7 100644
--- a/server/listen.c
+++ b/server/listen.c
@@ -60,6 +60,7 @@ static int ap_listenbacklog;
static int ap_listencbratio;
static int send_buffer_size;
static int receive_buffer_size;
+static int ap_listenfreebind;
#ifdef HAVE_SYSTEMD
static int use_systemd = -1;
#endif
@@ -159,6 +160,21 @@ static apr_status_t make_sock(apr_pool_t *p, ap_listen_rec *server, int do_bind_
}
#endif
+
+#if defined(APR_SO_FREEBIND)
+ if (ap_listenfreebind) {
+ if (apr_socket_opt_set(s, APR_SO_FREEBIND, one) < 0) {
+ stat = apr_get_netos_error();
+ ap_log_perror(APLOG_MARK, APLOG_CRIT, stat, p, APLOGNO(02182)
+ "make_sock: apr_socket_opt_set: "
+ "error setting APR_SO_FREEBIND");
+ apr_socket_close(s);
+ return stat;
+ }
+ }
+#endif
+
+
if (do_bind_listen) {
#if APR_HAVE_IPV6
if (server->bind_addr->family == APR_INET6) {
@@ -971,6 +987,7 @@ AP_DECLARE(void) ap_listen_pre_config(void)
}
}
+
AP_DECLARE_NONSTD(const char *) ap_set_listener(cmd_parms *cmd, void *dummy,
int argc, char *const argv[])
{
@@ -1044,6 +1061,14 @@ AP_DECLARE_NONSTD(const char *) ap_set_listener(cmd_parms *cmd, void *dummy,
scope_id, NULL, cmd->temp_pool);
}
+AP_DECLARE_NONSTD(const char *) ap_set_freelistener(cmd_parms *cmd, void *dummy,
+ int argc,
+ char *const argv[])
+{
+ ap_listenfreebind = 1;
+ return ap_set_listener(cmd, dummy, argc, argv);
+}
+
AP_DECLARE_NONSTD(const char *) ap_set_listenbacklog(cmd_parms *cmd,
void *dummy,
const char *arg)

109
httpd-2.4.62-proxy-ws-idle-timeout.patch Normal file
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@ -0,0 +1,109 @@
diff --git a/docs/manual/mod/mod_proxy_wstunnel.html.en b/docs/manual/mod/mod_proxy_wstunnel.html.en
index c5004b8..a0ae3c8 100644
--- a/docs/manual/mod/mod_proxy_wstunnel.html.en
+++ b/docs/manual/mod/mod_proxy_wstunnel.html.en
@@ -96,6 +96,7 @@ WebSocket always happens.
<div id="quickview"><a href="https://www.apache.org/foundation/contributing.html" class="badge"><img src="https://www.apache.org/images/SupportApache-small.png" alt="Support Apache!" /></a><h3 class="directives">Directives</h3>
<ul id="toc">
<li><img alt="" src="../images/down.gif" /> <a href="#proxywebsocketfallbacktoproxyhttp">ProxyWebsocketFallbackToProxyHttp</a></li>
+<li><img alt="" src="../images/down.gif" /> <a href="#proxywebsocketidletimeout">ProxyWebsocketIdleTimeout</a></li>
</ul>
<h3>Bugfix checklist</h3><ul class="seealso"><li><a href="https://www.apache.org/dist/httpd/CHANGES_2.4">httpd changelog</a></li><li><a href="https://bz.apache.org/bugzilla/buglist.cgi?bug_status=__open__&amp;list_id=144532&amp;product=Apache%20httpd-2&amp;query_format=specific&amp;order=changeddate%20DESC%2Cpriority%2Cbug_severity&amp;component=mod_proxy_wstunnel">Known issues</a></li><li><a href="https://bz.apache.org/bugzilla/enter_bug.cgi?product=Apache%20httpd-2&amp;component=mod_proxy_wstunnel">Report a bug</a></li></ul><h3>See also</h3>
<ul class="seealso">
@@ -121,6 +122,23 @@ WebSocket always happens.
WebSocket requests as in httpd 2.4.46 and earlier.</p>
</div>
+
+<div class="directive-section"><h2><a name="ProxyWebsocketIdleTimeout" id="ProxyWebsocketIdleTimeout">ProxyWebsocketIdleTimeout</a> <a name="proxywebsocketidletimeout" id="proxywebsocketidletimeout">Directive</a> <a title="Permanent link" href="#proxywebsocketidletimeout" class="permalink">&para;</a></h2>
+<table class="directive">
+<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Sets the maximum amount of time to wait for data on the websockets tunnel</td></tr>
+<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>ProxyWebsocketIdleTimeout <var>num</var>[ms]</code></td></tr>
+<tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>ProxyWebsocketIdleTimeout 0</code></td></tr>
+<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host</td></tr>
+<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Extension</td></tr>
+<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_proxy_wstunnel</td></tr>
+</table>
+ <p>This directive imposes a maximum amount of time for the tunnel to be
+ left open while idle. The timeout is considered in seconds by default, but
+ it is possible to increase the time resolution to milliseconds
+ adding the <em>ms</em> suffix.</p>
+
+</div>
+
</div>
<div class="bottomlang">
<p><span>Available Languages: </span><a href="../en/mod/mod_proxy_wstunnel.html" title="English">&nbsp;en&nbsp;</a> |
diff --git a/modules/proxy/mod_proxy_wstunnel.c b/modules/proxy/mod_proxy_wstunnel.c
index 30ba1b4..e27e6f8 100644
--- a/modules/proxy/mod_proxy_wstunnel.c
+++ b/modules/proxy/mod_proxy_wstunnel.c
@@ -22,6 +22,7 @@ module AP_MODULE_DECLARE_DATA proxy_wstunnel_module;
typedef struct {
unsigned int fallback_to_proxy_http :1,
fallback_to_proxy_http_set :1;
+ apr_time_t idle_timeout;
} proxyws_dir_conf;
static int can_fallback_to_proxy_http;
@@ -176,6 +177,8 @@ static int proxy_wstunnel_request(apr_pool_t *p, request_rec *r,
conn_rec *c = r->connection;
apr_socket_t *sock = conn->sock;
conn_rec *backconn = conn->connection;
+ proxyws_dir_conf *dconf = ap_get_module_config(r->per_dir_config,
+ &proxy_wstunnel_module);
char *buf;
apr_bucket_brigade *header_brigade;
apr_bucket *e;
@@ -253,10 +256,13 @@ static int proxy_wstunnel_request(apr_pool_t *p, request_rec *r,
c->keepalive = AP_CONN_CLOSE;
do { /* Loop until done (one side closes the connection, or an error) */
- rv = apr_pollset_poll(pollset, -1, &pollcnt, &signalled);
+ rv = apr_pollset_poll(pollset, dconf->idle_timeout, &pollcnt, &signalled);
if (rv != APR_SUCCESS) {
if (APR_STATUS_IS_EINTR(rv)) {
continue;
+ } else if(APR_STATUS_IS_TIMEUP(rv)){
+ ap_log_rerror(APLOG_MARK, APLOG_ERR, rv, r, "RH: the connection has timed out");
+ return HTTP_REQUEST_TIME_OUT;
}
ap_log_rerror(APLOG_MARK, APLOG_ERR, rv, r, APLOGNO(02444) "error apr_poll()");
return HTTP_INTERNAL_SERVER_ERROR;
@@ -442,11 +448,26 @@ cleanup:
return status;
}
+static const char * proxyws_set_idle(cmd_parms *cmd, void *conf, const char *val)
+{
+ proxyws_dir_conf *dconf = conf;
+ if (ap_timeout_parameter_parse(val, &(dconf->idle_timeout), "s") != APR_SUCCESS)
+ return "ProxyWebsocketIdleTimeout timeout has wrong format";
+
+ if (dconf->idle_timeout < 0)
+ return "ProxyWebsocketIdleTimeout timeout has to be a non-negative number";
+
+ if (!dconf->idle_timeout) dconf->idle_timeout = -1; /* loop indefinitely */
+
+ return NULL;
+}
+
static void *create_proxyws_dir_config(apr_pool_t *p, char *dummy)
{
proxyws_dir_conf *new =
(proxyws_dir_conf *) apr_pcalloc(p, sizeof(proxyws_dir_conf));
+ new->idle_timeout = -1; /* no timeout */
new->fallback_to_proxy_http = 1;
return (void *) new;
@@ -489,7 +510,8 @@ static const command_rec ws_proxy_cmds[] =
proxyws_fallback_to_proxy_http, NULL, RSRC_CONF|ACCESS_CONF,
"whether to let mod_proxy_http handle the upgrade and tunneling, "
"On by default"),
-
+ AP_INIT_TAKE1("ProxyWebsocketIdleTimeout", proxyws_set_idle, NULL, RSRC_CONF|ACCESS_CONF,
+ "timeout for activity in either direction, unlimited by default."),
{NULL}
};

11
httpd.spec
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@ -25,7 +25,7 @@
Summary: Apache HTTP Server Summary: Apache HTTP Server
Name: httpd Name: httpd
Version: 2.4.62 Version: 2.4.62
Release: 2%{?dist} Release: 3%{?dist}
URL: https://httpd.apache.org/ URL: https://httpd.apache.org/
Source0: https://www.apache.org/dist/httpd/httpd-%{version}.tar.bz2 Source0: https://www.apache.org/dist/httpd/httpd-%{version}.tar.bz2
Source1: https://www.apache.org/dist/httpd/httpd-%{version}.tar.bz2.asc Source1: https://www.apache.org/dist/httpd/httpd-%{version}.tar.bz2.asc
@ -96,6 +96,10 @@ Patch30: httpd-2.4.43-logjournal.patch
Patch31: httpd-2.4.53-separate-systemd-fns.patch Patch31: httpd-2.4.53-separate-systemd-fns.patch
Patch32: httpd-2.4.58-r1912477+.patch Patch32: httpd-2.4.58-r1912477+.patch
Patch33: httpd-2.4.54-selinux.patch Patch33: httpd-2.4.54-selinux.patch
# https://bugzilla.redhat.com/show_bug.cgi?id=1949606
Patch34: httpd-2.4.62-freebind.patch
# https://bugzilla.redhat.com/show_bug.cgi?id=1947496
Patch35: httpd-2.4.62-proxy-ws-idle-timeout.patch
# Bug fixes # Bug fixes
# https://bugzilla.redhat.com/show_bug.cgi?id=1397243 # https://bugzilla.redhat.com/show_bug.cgi?id=1397243
@ -827,6 +831,11 @@ exit $rv
%{_rpmconfigdir}/macros.d/macros.httpd %{_rpmconfigdir}/macros.d/macros.httpd
%changelog %changelog
* Thu Aug 08 2024 Luboš Uhliarik <luhliari@redhat.com> - 2.4.62-3
- Resolves: RHEL-53632 - RFE: httpd, add IP_FREEBIND support for Listen
- Resolves: RHEL-53722 - [RFE] ProxyWebsocketIdleTimeout from
httpd mod_proxy_wstunnel
* Sat Aug 03 2024 Luboš Uhliarik <luhliari@redhat.com> - 2.4.62-2 * Sat Aug 03 2024 Luboš Uhliarik <luhliari@redhat.com> - 2.4.62-2
- Resolves: RHEL-52722 - Regression introduced by CVE-2024-38474 fix - Resolves: RHEL-52722 - Regression introduced by CVE-2024-38474 fix