<p>George Joseph has uploaded this change for <strong>review</strong>.</p><p><a href="https://gerrit.asterisk.org/8330">View Change</a></p><pre style="font-family: monospace,monospace; white-space: pre-wrap;">AST-2018-005: res_pjsip_transport_management: Move to core<br><br>Since res_pjsip_transport_management provides several attack<br>mitigation features, its functionality moved to res_pjsip and<br>this module has been removed. This way the features will always<br>be available if res_pjsip is loaded.<br><br>ASTERISK-27618<br>Reported By: Sandro Gauci<br><br>Change-Id: I21a2d33d9dda001452ea040d350d7a075f9acf0d<br>---<br>M CHANGES<br>M UPGRADE.txt<br>M res/res_pjsip.c<br>M res/res_pjsip/include/res_pjsip_private.h<br>R res/res_pjsip/pjsip_transport_management.c<br>5 files changed, 51 insertions(+), 27 deletions(-)<br><br></pre><pre style="font-family: monospace,monospace; white-space: pre-wrap;">git pull ssh://gerrit.asterisk.org:29418/asterisk refs/changes/30/8330/1</pre><pre style="font-family: monospace,monospace; white-space: pre-wrap;">diff --git a/CHANGES b/CHANGES<br>index 00d6abb..303544c 100644<br>--- a/CHANGES<br>+++ b/CHANGES<br>@@ -81,6 +81,13 @@<br> need to run the "alembic upgrade head" process to add the column to<br> the schema.<br> <br>+res_pjsip_transport_management<br>+------------------<br>+ * Since res_pjsip_transport_management provides several attack<br>+ mitigation features, its functionality moved to res_pjsip and<br>+ this module has been removed. This way the features will always<br>+ be available if res_pjsip is loaded.<br>+<br> ------------------------------------------------------------------------------<br> --- Functionality changes from Asterisk 15.1.0 to Asterisk 15.2.0 ------------<br> ------------------------------------------------------------------------------<br>diff --git a/UPGRADE.txt b/UPGRADE.txt<br>index 612c0d0..0a33ff0 100644<br>--- a/UPGRADE.txt<br>+++ b/UPGRADE.txt<br>@@ -58,6 +58,13 @@<br> you can now predict which endpoint is matched when a request comes in that<br> matches both.<br> <br>+res_pjsip_transport_management<br>+------------------<br>+ * Since res_pjsip_transport_management provides several attack<br>+ mitigation features, its functionality moved to res_pjsip and<br>+ this module has been removed. This way the features will always<br>+ be available if res_pjsip is loaded.<br>+<br> New in 15.0.0:<br> <br> Build System:<br>diff --git a/res/res_pjsip.c b/res/res_pjsip.c<br>index 59e8c86..8849b0b 100644<br>--- a/res/res_pjsip.c<br>+++ b/res/res_pjsip.c<br>@@ -4816,6 +4816,7 @@<br> ast_res_pjsip_cleanup_options_handling();<br> ast_res_pjsip_cleanup_message_filter();<br> ast_sip_destroy_distributor();<br>+ ast_sip_destroy_transport_management();<br> ast_res_pjsip_destroy_configuration();<br> ast_sip_destroy_system();<br> ast_sip_destroy_global_headers();<br>@@ -4981,6 +4982,11 @@<br> ast_sip_initialize_resolver();<br> ast_sip_initialize_dns();<br> <br>+ if (ast_sip_initialize_transport_management()) {<br>+ ast_log(LOG_ERROR, "Failed to initialize SIP transport management. Aborting load\n");<br>+ goto error;<br>+ }<br>+<br> if (ast_sip_initialize_distributor()) {<br> ast_log(LOG_ERROR, "Failed to register distributor module. Aborting load\n");<br> goto error;<br>diff --git a/res/res_pjsip/include/res_pjsip_private.h b/res/res_pjsip/include/res_pjsip_private.h<br>index 4652659..04ed990 100644<br>--- a/res/res_pjsip/include/res_pjsip_private.h<br>+++ b/res/res_pjsip/include/res_pjsip_private.h<br>@@ -409,4 +409,32 @@<br> int ast_sip_will_uri_survive_restart(pjsip_sip_uri *uri, struct ast_sip_endpoint *endpoint,<br> pjsip_rx_data *rdata);<br> <br>+/*!<br>+ * \internal<br>+ * \brief Initialize the transport management module<br>+ * \since 13.20.0<br>+ *<br>+ * The transport management module is responsible for 3 things...<br>+ * 1. It automatically destroys any reliable transport that does not<br>+ * receive a valid request within system/timer_b milliseconds of the<br>+ * connection being opened. (Attack mitigation)<br>+ * 2. Since it increments the reliable transport's reference count<br>+ * for that period of time, it also prevents issues if the transport<br>+ * disconnects while we're still trying to process a response.<br>+ * (Attack mitigation)<br>+ * 3. If enabled by global/keep_alive_interval, it sends '\r\n'<br>+ * keepalives on reliable transports at the interval specified.<br>+ *<br>+ * \retval -1 Failure<br>+ * \retval 0 Success<br>+ */<br>+int ast_sip_initialize_transport_management(void);<br>+<br>+/*!<br>+ * \internal<br>+ * \brief Destruct the transport management module.<br>+ * \since 13.20.0<br>+ */<br>+void ast_sip_destroy_transport_management(void);<br>+<br> #endif /* RES_PJSIP_PRIVATE_H_ */<br>diff --git a/res/res_pjsip_transport_management.c b/res/res_pjsip/pjsip_transport_management.c<br>similarity index 93%<br>rename from res/res_pjsip_transport_management.c<br>rename to res/res_pjsip/pjsip_transport_management.c<br>index eb92eb7..efda37d 100644<br>--- a/res/res_pjsip_transport_management.c<br>+++ b/res/res_pjsip/pjsip_transport_management.c<br>@@ -16,12 +16,6 @@<br> * at the top of the source tree.<br> */<br> <br>-/*** MODULEINFO<br>- <depend>pjproject</depend><br>- <depend>res_pjsip</depend><br>- <support_level>core</support_level><br>- ***/<br>-<br> #include "asterisk.h"<br> <br> #include <signal.h><br>@@ -32,6 +26,7 @@<br> #include "asterisk/res_pjsip.h"<br> #include "asterisk/module.h"<br> #include "asterisk/astobj2.h"<br>+#include "include/res_pjsip_private.h"<br> <br> /*! \brief Number of buckets for monitored transports */<br> #define TRANSPORTS_BUCKETS 127<br>@@ -319,11 +314,9 @@<br> .on_rx_request = idle_monitor_on_rx_request,<br> };<br> <br>-static int load_module(void)<br>+int ast_sip_initialize_transport_management(void)<br> {<br> struct ao2_container *transports;<br>-<br>- CHECK_PJSIP_MODULE_LOADED();<br> <br> transports = ao2_container_alloc(TRANSPORTS_BUCKETS, monitored_transport_hash_fn,<br> monitored_transport_cmp_fn);<br>@@ -356,11 +349,10 @@<br> ast_sorcery_observer_add(ast_sip_get_sorcery(), "global", &keepalive_global_observer);<br> ast_sorcery_reload_object(ast_sip_get_sorcery(), "global");<br> <br>- ast_module_shutdown_ref(ast_module_info->self);<br> return AST_MODULE_LOAD_SUCCESS;<br> }<br> <br>-static int unload_module(void)<br>+void ast_sip_destroy_transport_management(void)<br> {<br> if (keepalive_interval) {<br> keepalive_interval = 0;<br>@@ -381,20 +373,4 @@<br> sched = NULL;<br> <br> ao2_global_obj_release(monitored_transports);<br>-<br>- return 0;<br> }<br>-<br>-static int reload_module(void)<br>-{<br>- ast_sorcery_reload_object(ast_sip_get_sorcery(), "global");<br>- return 0;<br>-}<br>-<br>-AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_LOAD_ORDER, "PJSIP Reliable Transport Management",<br>- .support_level = AST_MODULE_SUPPORT_CORE,<br>- .load = load_module,<br>- .reload = reload_module,<br>- .unload = unload_module,<br>- .load_pri = AST_MODPRI_CHANNEL_DEPEND - 4,<br>-);<br></pre><p>To view, visit <a href="https://gerrit.asterisk.org/8330">change 8330</a>. 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<div style="display:none"> Gerrit-Project: asterisk </div>
<div style="display:none"> Gerrit-Branch: 15 </div>
<div style="display:none"> Gerrit-MessageType: newchange </div>
<div style="display:none"> Gerrit-Change-Id: I21a2d33d9dda001452ea040d350d7a075f9acf0d </div>
<div style="display:none"> Gerrit-Change-Number: 8330 </div>
<div style="display:none"> Gerrit-PatchSet: 1 </div>
<div style="display:none"> Gerrit-Owner: George Joseph <gjoseph@digium.com> </div>