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res_pjsip: add "via_addr", "via_port", "call_id" to contact

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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/13/2913/1
Alexei Gradinari 9 years ago
parent a6b16d7029
commit 31f17abe44
8 changed files with 130 additions and 2 deletions
Show Stats Download Patch File Download Diff File

6
CHANGES
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@ -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

25
contrib/ast-db-manage/config/versions/6d8c104e6184_res_pjsip_add_contact_via_addr_and_.py
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@ -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')

8
include/asterisk/res_pjsip.h
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@ -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);
/*!

6
main/stasis_endpoints.c
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@ -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>

28
res/res_pjsip.c
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@ -1175,6 +1175,28 @@
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>
@ -1967,6 +1989,12 @@
<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>

17
res/res_pjsip/location.c
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@ -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));

10
res/res_pjsip/pjsip_options.c
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@ -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");

32
res/res_pjsip_registrar.c
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@ -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;

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