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res/res_pjsip_session: Only check localnet if it is defined

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If local_net is not defined on a transport, transport_state->localnet
will be NULL. ast_apply_ha will, be default, return AST_SENSE_ALLOW in
this case, causing the external_media_address, if set, to be skipped.

This patch causes us to only check if we are sending within a network if
local_net is defined.

ASTERISK-26879 #close

Change-Id: Ib661c31a954cabc9c99f1f25c9c9a5c5b82cbbfb
This commit is contained in:
Matt Jordan
2017-03-16 10:39:00 -05:00
parent 76e64f5589
commit e6dc28b78f
4 changed files with 33 additions and 27 deletions
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45
res/res_pjsip_nat.c
View File

@@ -262,32 +262,33 @@ static pj_status_t nat_on_tx_message(pjsip_tx_data *tdata)
return PJ_SUCCESS;
}
if ( !transport_state->localnet || ast_sockaddr_isnull(&transport_state->external_address)) {
return PJ_SUCCESS;
}
if (transport_state->localnet) {
ast_sockaddr_parse(&addr, tdata->tp_info.dst_name, PARSE_PORT_FORBID);
ast_sockaddr_set_port(&addr, tdata->tp_info.dst_port);
ast_sockaddr_parse(&addr, tdata->tp_info.dst_name, PARSE_PORT_FORBID);
ast_sockaddr_set_port(&addr, tdata->tp_info.dst_port);
/* See if where we are sending this request is local or not, and if not that we can get a Contact URI to modify */
if (ast_apply_ha(transport_state->localnet, &addr) != AST_SENSE_ALLOW) {
return PJ_SUCCESS;
}
/* Update the contact header with the external address */
if (uri || (uri = nat_get_contact_sip_uri(tdata))) {
pj_strdup2(tdata->pool, &uri->host, ast_sockaddr_stringify_host(&transport_state->external_address));
if (transport->external_signaling_port) {
uri->port = transport->external_signaling_port;
ast_debug(4, "Re-wrote Contact URI port to %d\n", uri->port);
/* See if where we are sending this request is local or not, and if not that we can get a Contact URI to modify */
if (ast_apply_ha(transport_state->localnet, &addr) != AST_SENSE_ALLOW) {
ast_debug(5, "Request is being sent to local address, skipping NAT manipulation\n");
return PJ_SUCCESS;
}
}
/* Update the via header if relevant */
if ((tdata->msg->type == PJSIP_REQUEST_MSG) && (via || (via = pjsip_msg_find_hdr(tdata->msg, PJSIP_H_VIA, NULL)))) {
pj_strdup2(tdata->pool, &via->sent_by.host, ast_sockaddr_stringify_host(&transport_state->external_address));
if (transport->external_signaling_port) {
via->sent_by.port = transport->external_signaling_port;
if (!ast_sockaddr_isnull(&transport_state->external_address)) {
/* Update the contact header with the external address */
if (uri || (uri = nat_get_contact_sip_uri(tdata))) {
pj_strdup2(tdata->pool, &uri->host, ast_sockaddr_stringify_host(&transport_state->external_address));
if (transport->external_signaling_port) {
uri->port = transport->external_signaling_port;
ast_debug(4, "Re-wrote Contact URI port to %d\n", uri->port);
}
}
/* Update the via header if relevant */
if ((tdata->msg->type == PJSIP_REQUEST_MSG) && (via || (via = pjsip_msg_find_hdr(tdata->msg, PJSIP_H_VIA, NULL)))) {
pj_strdup2(tdata->pool, &via->sent_by.host, ast_sockaddr_stringify_host(&transport_state->external_address));
if (transport->external_signaling_port) {
via->sent_by.port = transport->external_signaling_port;
}
}
}

5
res/res_pjsip_sdp_rtp.c
View File

@@ -1473,10 +1473,11 @@ static void change_outgoing_sdp_stream_media_address(pjsip_tx_data *tdata, struc
ast_sockaddr_parse(&addr, host, PARSE_PORT_FORBID);
/* Is the address within the SDP inside the same network? */
if (ast_apply_ha(transport_state->localnet, &addr) == AST_SENSE_ALLOW) {
if (transport_state->localnet
&& ast_apply_ha(transport_state->localnet, &addr) == AST_SENSE_ALLOW) {
return;
}
ast_debug(5, "Setting media address to %s\n", transport->external_media_address);
pj_strdup2(tdata->pool, &stream->conn->addr, transport->external_media_address);
}

5
res/res_pjsip_session.c
View File

@@ -3148,7 +3148,10 @@ static void session_outgoing_nat_hook(pjsip_tx_data *tdata, struct ast_sip_trans
ast_copy_pj_str(host, &sdp->conn->addr, sizeof(host));
ast_sockaddr_parse(&addr, host, PARSE_PORT_FORBID);
if (ast_apply_ha(transport_state->localnet, &addr) != AST_SENSE_ALLOW) {
if (!transport_state->localnet
|| (transport_state->localnet
&& ast_apply_ha(transport_state->localnet, &addr) == AST_SENSE_ALLOW)) {
ast_debug(5, "Setting external media address to %s\n", transport->external_media_address);
pj_strdup2(tdata->pool, &sdp->conn->addr, transport->external_media_address);
}
}

5
res/res_pjsip_t38.c
View File

@@ -867,10 +867,11 @@ static void change_outgoing_sdp_stream_media_address(pjsip_tx_data *tdata, struc
ast_sockaddr_parse(&addr, host, PARSE_PORT_FORBID);
/* Is the address within the SDP inside the same network? */
if (ast_apply_ha(transport_state->localnet, &addr) == AST_SENSE_ALLOW) {
if (transport_state->localnet
&& ast_apply_ha(transport_state->localnet, &addr) == AST_SENSE_ALLOW) {
return;
}
ast_debug(5, "Setting media address to %s\n", transport->external_media_address);
pj_strdup2(tdata->pool, &stream->conn->addr, transport->external_media_address);
}