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res_pjsip_transport_websocket: Add support for IPv6.

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This change adds a PJSIP patch (which has been contributed upstream)
to allow the registration of IPv6 transport types.

Using this the res_pjsip_transport_websocket module now registers
an IPv6 Websocket transport and uses it for the corresponding
traffic.

ASTERISK-26685

Change-Id: Id1f9126f995b31dc38db8fdb58afd289b4ad1647
This commit is contained in:
Joshua Colp
2017-03-07 13:37:52 +00:00
committed by Richard Mudgett
parent a860bf63e1
commit 2a85888262
4 changed files with 100 additions and 32 deletions
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30
res/res_pjsip_transport_websocket.c
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@@ -39,6 +39,7 @@
#include "asterisk/taskprocessor.h"
static int transport_type_wss;
static int transport_type_wss_ipv6;
/*!
* \brief Wrapper for pjsip_transport, for storing the WebSocket session
@@ -198,15 +199,20 @@ static int transport_create(void *data)
newtransport->transport.type_name, ws_addr_str);
pj_sockaddr_parse(pj_AF_UNSPEC(), 0, pj_cstr(&buf, ws_addr_str), &newtransport->transport.key.rem_addr);
newtransport->transport.key.rem_addr.addr.sa_family = pj_AF_INET();
newtransport->transport.key.type = transport_type_wss;
if (newtransport->transport.key.rem_addr.addr.sa_family == pj_AF_INET6()) {
newtransport->transport.key.type = transport_type_wss_ipv6;
newtransport->transport.local_name.host.ptr = (char *)pj_pool_alloc(pool, PJ_INET6_ADDRSTRLEN);
pj_sockaddr_print(&newtransport->transport.key.rem_addr, newtransport->transport.local_name.host.ptr, PJ_INET6_ADDRSTRLEN, 0);
} else {
newtransport->transport.key.type = transport_type_wss;
newtransport->transport.local_name.host.ptr = (char *)pj_pool_alloc(pool, PJ_INET_ADDRSTRLEN);
pj_sockaddr_print(&newtransport->transport.key.rem_addr, newtransport->transport.local_name.host.ptr, PJ_INET_ADDRSTRLEN, 0);
}
newtransport->transport.addr_len = pj_sockaddr_get_len(&newtransport->transport.key.rem_addr);
pj_sockaddr_cp(&newtransport->transport.local_addr, &newtransport->transport.key.rem_addr);
newtransport->transport.local_name.host.ptr = (char *)pj_pool_alloc(pool, newtransport->transport.addr_len+4);
pj_sockaddr_print(&newtransport->transport.key.rem_addr, newtransport->transport.local_name.host.ptr, newtransport->transport.addr_len+4, 0);
newtransport->transport.local_name.host.slen = pj_ansi_strlen(newtransport->transport.local_name.host.ptr);
newtransport->transport.local_name.port = pj_sockaddr_get_port(&newtransport->transport.key.rem_addr);
@@ -271,8 +277,6 @@ static int transport_read(void *data)
rdata->pkt_info.zero = 0;
pj_sockaddr_parse(pj_AF_UNSPEC(), 0, pj_cstr(&buf, ast_sockaddr_stringify(ast_websocket_remote_address(session))), &rdata->pkt_info.src_addr);
rdata->pkt_info.src_addr.addr.sa_family = pj_AF_INET();
rdata->pkt_info.src_addr_len = sizeof(rdata->pkt_info.src_addr);
pj_ansi_strcpy(rdata->pkt_info.src_name, ast_sockaddr_stringify_host(ast_websocket_remote_address(session)));
@@ -395,7 +399,7 @@ static pj_bool_t websocket_on_rx_msg(pjsip_rx_data *rdata)
long type = rdata->tp_info.transport->key.type;
if (type != (long) transport_type_wss) {
if (type != (long) transport_type_wss && type != (long) transport_type_wss_ipv6) {
return PJ_FALSE;
}
@@ -451,15 +455,17 @@ static int load_module(void)
CHECK_PJSIP_MODULE_LOADED();
/*
* We only need one transport type defined. Firefox and Chrome
* do not support anything other than secure websockets anymore.
* We only need one transport type name (ws) defined. Firefox
* and Chrome do not support anything other than secure websockets
* anymore.
*
* Also we really cannot have two transports with the same name
* because it would be ambiguous. Outgoing requests may try to
* find the transport by name and pjproject only finds the first
* one registered.
* and address family because it would be ambiguous. Outgoing
* requests may try to find the transport by name and pjproject
* only finds the first one registered.
*/
pjsip_transport_register_type(PJSIP_TRANSPORT_RELIABLE | PJSIP_TRANSPORT_SECURE, "ws", 5060, &transport_type_wss);
pjsip_transport_register_type(PJSIP_TRANSPORT_RELIABLE | PJSIP_TRANSPORT_SECURE | PJSIP_TRANSPORT_IPV6, "ws", 5060, &transport_type_wss_ipv6);
if (ast_sip_register_service(&websocket_module) != PJ_SUCCESS) {
return AST_MODULE_LOAD_DECLINE;