res_pjsip: add "via_addr", "via_port", "call_id" to contact
authorAlexei Gradinari <alex2grad@gmail.com>
Thu, 19 May 2016 19:56:26 +0000 (15:56 -0400)
committerAlexei Gradinari <alex2grad@gmail.com>
Thu, 26 May 2016 21:18:11 +0000 (16:18 -0500)
As res_pjsip_nat rewrites contact's address, only the last Via header
can contain the source address of registered endpoint.
Also Call-Id header may contain the source address of registered
endpoint.

Added "via_addr", "via_port", "call_id" to contact.
Added new fields ViaAddress, CallID to AMI event ContactStatus.

ASTERISK-26011

Change-Id: I36bcc0bf422b3e0623680152d80486aeafe4c576

CHANGES
contrib/ast-db-manage/config/versions/6d8c104e6184_res_pjsip_add_contact_via_addr_and_.py [new file with mode: 0644]
include/asterisk/res_pjsip.h
main/stasis_endpoints.c
res/res_pjsip.c
res/res_pjsip/location.c
res/res_pjsip/pjsip_options.c
res/res_pjsip_registrar.c

diff --git a/CHANGES b/CHANGES
index 281cff3..7b129e0 100644 (file)
--- a/CHANGES
+++ b/CHANGES
@@ -328,6 +328,12 @@ res_fax
 
 res_pjsip
 ------------------
+ * Added "via_addr", "via_port", "call_id" to contacts.
+   As res_pjsip_nat rewrites contact's address, only the last Via header
+   can contain the source address of registered endpoint.
+   Also Call-Id header may contain the source address of registered endpoint.
+   Added new fields ViaAddress,CallID to AMI event ContactStatus
+
  * Endpoint IP Access Controls
    Added new configuration Endpoint options:
     "acl" - list of IP ACL section names in acl.conf
diff --git a/contrib/ast-db-manage/config/versions/6d8c104e6184_res_pjsip_add_contact_via_addr_and_.py b/contrib/ast-db-manage/config/versions/6d8c104e6184_res_pjsip_add_contact_via_addr_and_.py
new file mode 100644 (file)
index 0000000..893d9d8
--- /dev/null
@@ -0,0 +1,25 @@
+"""res_pjsip: add contact via_addr and callid
+
+Revision ID: a845e4d8ade8
+Revises: bca7113d796f
+Create Date: 2016-05-19 15:51:33.410852
+
+"""
+
+# revision identifiers, used by Alembic.
+revision = 'a845e4d8ade8'
+down_revision = 'bca7113d796f'
+
+from alembic import op
+import sqlalchemy as sa
+
+
+def upgrade():
+    op.add_column('ps_contacts', sa.Column('via_addr', sa.String(40)))
+    op.add_column('ps_contacts', sa.Column('via_port', sa.Integer))
+    op.add_column('ps_contacts', sa.Column('call_id', sa.String(255)))
+
+def downgrade():
+    op.drop_column('ps_contacts', 'via_addr')
+    op.drop_column('ps_contacts', 'via_port')
+    op.drop_column('ps_contacts', 'call_id')
index cf8c719..50d02d9 100644 (file)
@@ -250,6 +250,12 @@ struct ast_sip_contact {
        struct ast_sip_endpoint *endpoint;
        /*! Asterisk Server name */
        AST_STRING_FIELD_EXTENDED(reg_server);
+       /*! IP-address of the Via header in REGISTER request */
+       AST_STRING_FIELD_EXTENDED(via_addr);
+       /* Port of the Via header in REGISTER request */
+       int via_port;
+       /*! Content of the Call-ID header in REGISTER request */
+       AST_STRING_FIELD_EXTENDED(call_id);
 };
 
 #define CONTACT_STATUS "contact_status"
@@ -1093,6 +1099,7 @@ struct ast_sip_contact *ast_sip_location_retrieve_contact(const char *contact_na
  */
 int ast_sip_location_add_contact(struct ast_sip_aor *aor, const char *uri,
        struct timeval expiration_time, const char *path_info, const char *user_agent,
+       const char *via_addr, int via_port, const char *call_id,
        struct ast_sip_endpoint *endpoint);
 
 /*!
@@ -1114,6 +1121,7 @@ int ast_sip_location_add_contact(struct ast_sip_aor *aor, const char *uri,
  */
 int ast_sip_location_add_contact_nolock(struct ast_sip_aor *aor, const char *uri,
        struct timeval expiration_time, const char *path_info, const char *user_agent,
+       const char *via_addr, int via_port, const char *call_id,
        struct ast_sip_endpoint *endpoint);
 
 /*!
index 14d3d0c..2d11421 100644 (file)
@@ -104,6 +104,12 @@ ASTERISK_REGISTER_FILE()
                                <parameter name="RegExpire">
                                        <para>Absolute time that this contact is no longer valid after</para>
                                </parameter>
+                               <parameter name="ViaAddress">
+                                       <para>IP address:port of the last Via header in REGISTER request</para>
+                               </parameter>
+                               <parameter name="CallID">
+                                       <para>Content of the Call-ID header in REGISTER request</para>
+                               </parameter>
                        </syntax>
                </managerEventInstance>
        </managerEvent>
index bebe941..8fc3c53 100644 (file)
                                                Asterisk Server name on which SIP endpoint registered.
                                        </para></description>
                                </configOption>
+                               <configOption name="via_addr">
+                                       <synopsis>IP-address of the last Via header from registration.</synopsis>
+                                       <description><para>
+                                               The last Via header should contain the address of UA which sent the request.
+                                               The IP-address of the last Via header is automatically stored based on data present
+                                               in incoming SIP REGISTER requests and is not intended to be configured manually.
+                                       </para></description>
+                               </configOption>
+                               <configOption name="via_port">
+                                       <synopsis>IP-port of the last Via header from registration.</synopsis>
+                                       <description><para>
+                                               The IP-port of the last Via header is automatically stored based on data present
+                                               in incoming SIP REGISTER requests and is not intended to be configured manually.
+                                       </para></description>
+                               </configOption>
+                               <configOption name="call_id">
+                                       <synopsis>Call-ID header from registration.</synopsis>
+                                       <description><para>
+                                               The Call-ID header is automatically stored based on data present
+                                               in incoming SIP REGISTER requests and is not intended to be configured manually.
+                                       </para></description>
+                               </configOption>
                        </configObject>
                        <configObject name="aor">
                                <synopsis>The configuration for a location of an endpoint</synopsis>
                                <parameter name="RegExpire">
                                        <para>Absolute time that this contact is no longer valid after</para>
                                </parameter>
+                               <parameter name="ViaAddress">
+                                       <para>IP address:port of the last Via header in REGISTER request</para>
+                               </parameter>
+                               <parameter name="CallID">
+                                       <para>Content of the Call-ID header in REGISTER request</para>
+                               </parameter>
                        </syntax>
                </managerEventInstance>
        </managerEvent>
index fd6db6e..43e6ea4 100644 (file)
@@ -121,6 +121,8 @@ static void *contact_alloc(const char *name)
        }
 
        ast_string_field_init_extended(contact, reg_server);
+       ast_string_field_init_extended(contact, via_addr);
+       ast_string_field_init_extended(contact, call_id);
 
        /* Dynamic contacts are delimited with ";@" and static ones with "@@" */
        if ((aor_separator = strstr(id, ";@")) || (aor_separator = strstr(id, "@@"))) {
@@ -303,6 +305,7 @@ struct ast_sip_contact *ast_sip_location_retrieve_contact(const char *contact_na
 
 int ast_sip_location_add_contact_nolock(struct ast_sip_aor *aor, const char *uri,
                struct timeval expiration_time, const char *path_info, const char *user_agent,
+               const char *via_addr, int via_port, const char *call_id,
                struct ast_sip_endpoint *endpoint)
 {
        char name[MAX_OBJECT_FIELD * 2 + 3];
@@ -337,6 +340,15 @@ int ast_sip_location_add_contact_nolock(struct ast_sip_aor *aor, const char *uri
                ast_string_field_set(contact, reg_server, ast_config_AST_SYSTEM_NAME);
        }
 
+       if (!ast_strlen_zero(via_addr)) {
+               ast_string_field_set(contact, via_addr, via_addr);
+       }
+       contact->via_port = via_port;
+
+       if (!ast_strlen_zero(call_id)) {
+               ast_string_field_set(contact, call_id, call_id);
+       }
+
        contact->endpoint = ao2_bump(endpoint);
 
        return ast_sorcery_create(ast_sip_get_sorcery(), contact);
@@ -344,6 +356,7 @@ int ast_sip_location_add_contact_nolock(struct ast_sip_aor *aor, const char *uri
 
 int ast_sip_location_add_contact(struct ast_sip_aor *aor, const char *uri,
                struct timeval expiration_time, const char *path_info, const char *user_agent,
+               const char *via_addr, int via_port, const char *call_id,
                struct ast_sip_endpoint *endpoint)
 {
        int res;
@@ -356,6 +369,7 @@ int ast_sip_location_add_contact(struct ast_sip_aor *aor, const char *uri,
 
        ao2_wrlock(lock);
        res = ast_sip_location_add_contact_nolock(aor, uri, expiration_time, path_info, user_agent,
+               via_addr, via_port, call_id,
                endpoint);
        ao2_unlock(lock);
        ast_named_lock_put(lock);
@@ -1120,6 +1134,9 @@ int ast_sip_initialize_sorcery_location(void)
        ast_sorcery_object_field_register(sorcery, "contact", "outbound_proxy", "", OPT_STRINGFIELD_T, 0, STRFLDSET(struct ast_sip_contact, outbound_proxy));
        ast_sorcery_object_field_register(sorcery, "contact", "user_agent", "", OPT_STRINGFIELD_T, 0, STRFLDSET(struct ast_sip_contact, user_agent));
        ast_sorcery_object_field_register(sorcery, "contact", "reg_server", "", OPT_STRINGFIELD_T, 0, STRFLDSET(struct ast_sip_contact, reg_server));
+       ast_sorcery_object_field_register(sorcery, "contact", "via_addr", "", OPT_STRINGFIELD_T, 0, STRFLDSET(struct ast_sip_contact, via_addr));
+       ast_sorcery_object_field_register(sorcery, "contact", "via_port", "0", OPT_UINT_T, 0, FLDSET(struct ast_sip_contact, via_port));
+       ast_sorcery_object_field_register(sorcery, "contact", "call_id", "", OPT_STRINGFIELD_T, 0, STRFLDSET(struct ast_sip_contact, call_id));
 
        ast_sorcery_object_field_register(sorcery, "aor", "type", "", OPT_NOOP_T, 0, 0);
        ast_sorcery_object_field_register(sorcery, "aor", "minimum_expiration", "60", OPT_UINT_T, 0, FLDSET(struct ast_sip_aor, minimum_expiration));
index 62640fe..1114336 100644 (file)
@@ -1156,6 +1156,16 @@ static int format_contact_status(void *obj, void *arg, int flags)
        ast_str_append(&buf, 0, "URI: %s\r\n", contact->uri);
        ast_str_append(&buf, 0, "UserAgent: %s\r\n", contact->user_agent);
        ast_str_append(&buf, 0, "RegExpire: %ld\r\n", contact->expiration_time.tv_sec);
+       if (!ast_strlen_zero(contact->via_addr)) {
+               ast_str_append(&buf, 0, "ViaAddress: %s", contact->via_addr);
+               if (contact->via_port) {
+                       ast_str_append(&buf, 0, ":%d", contact->via_port);
+               }
+               ast_str_append(&buf, 0, "\r\n");
+       }
+       if (!ast_strlen_zero(contact->call_id)) {
+               ast_str_append(&buf, 0, "CallID: %s\r\n", contact->call_id);
+       }
        ast_str_append(&buf, 0, "Status: %s\r\n", ast_sip_get_contact_status_label(status->status));
        if (status->status == UNKNOWN) {
                ast_str_append(&buf, 0, "RoundtripUsec: N/A\r\n");
index cbc33ab..0e14ab7 100644 (file)
@@ -447,6 +447,13 @@ static int rx_task_core(struct rx_task_data *task_data, struct ao2_container *co
        char *user_agent = NULL;
        pjsip_user_agent_hdr *user_agent_hdr;
        pjsip_expires_hdr *expires_hdr;
+       pjsip_via_hdr *via_hdr;
+       pjsip_via_hdr *via_hdr_last;
+       char *via_addr = NULL;
+       int via_port = 0;
+       pjsip_cid_hdr *call_id_hdr;
+       char *call_id = NULL;
+       size_t alloc_size;
 
        /* So we don't count static contacts against max_contacts we prune them out from the container */
        ao2_callback(contacts, OBJ_NODATA | OBJ_UNLINK | OBJ_MULTIPLE, registrar_prune_static, NULL);
@@ -484,11 +491,32 @@ static int rx_task_core(struct rx_task_data *task_data, struct ao2_container *co
 
        user_agent_hdr = pjsip_msg_find_hdr_by_name(task_data->rdata->msg_info.msg, &USER_AGENT, NULL);
        if (user_agent_hdr) {
-               size_t alloc_size = pj_strlen(&user_agent_hdr->hvalue) + 1;
+               alloc_size = pj_strlen(&user_agent_hdr->hvalue) + 1;
                user_agent = ast_alloca(alloc_size);
                ast_copy_pj_str(user_agent, &user_agent_hdr->hvalue, alloc_size);
        }
 
+       /* Find the first Via header */
+       via_hdr = via_hdr_last = (pjsip_via_hdr*) pjsip_msg_find_hdr(task_data->rdata->msg_info.msg, PJSIP_H_VIA, NULL);
+       if (via_hdr) {
+               /* Find the last Via header */
+               while ( (via_hdr = (pjsip_via_hdr*) pjsip_msg_find_hdr(task_data->rdata->msg_info.msg,
+                               PJSIP_H_VIA, via_hdr->next)) != NULL) {
+                       via_hdr_last = via_hdr;
+               }
+               alloc_size = pj_strlen(&via_hdr_last->sent_by.host) + 1;
+               via_addr = ast_alloca(alloc_size);
+               ast_copy_pj_str(via_addr, &via_hdr_last->sent_by.host, alloc_size);
+               via_port=via_hdr_last->sent_by.port;
+       }
+
+       call_id_hdr = (pjsip_cid_hdr*) pjsip_msg_find_hdr(task_data->rdata->msg_info.msg, PJSIP_H_CALL_ID, NULL);
+       if (call_id_hdr) {
+               alloc_size = pj_strlen(&call_id_hdr->id) + 1;
+               call_id = ast_alloca(alloc_size);
+               ast_copy_pj_str(call_id, &call_id_hdr->id, alloc_size);
+       }
+
        /* Iterate each provided Contact header and add, update, or delete */
        while ((contact_hdr = pjsip_msg_find_hdr(task_data->rdata->msg_info.msg, PJSIP_H_CONTACT, contact_hdr ? contact_hdr->next : NULL))) {
                int expiration;
@@ -520,7 +548,7 @@ static int rx_task_core(struct rx_task_data *task_data, struct ao2_container *co
 
                        if (ast_sip_location_add_contact_nolock(task_data->aor, contact_uri, ast_tvadd(ast_tvnow(),
                                ast_samp2tv(expiration, 1)), path_str ? ast_str_buffer(path_str) : NULL,
-                                       user_agent, task_data->endpoint)) {
+                                       user_agent, via_addr, via_port, call_id, task_data->endpoint)) {
                                ast_log(LOG_ERROR, "Unable to bind contact '%s' to AOR '%s'\n",
                                                contact_uri, aor_name);
                                continue;