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Purism-Calls/plugins/sip/calls-sip-call.h
Evangelos Ribeiro Tzaras 8b126484cb sip: Use per origin IP instead of a global IP
Sofia detects a NAT by presence of the "received" parameter in the Via header in
the response to a REGISTER. Sofia will then update the Contact header to use the
IP as reported by the registrar.

The "received" parameter MUST be included in the response according to
https://datatracker.ietf.org/doc/html/rfc3261#section-18.2.1
when the registrar detects a difference between the domain part of the top Via
header and the packet source address but practice has shown that this will not
always be the case.

Addditionally this change allows us to have origins bound to different network
interfaces which would be useful when a registrar can only be accessed through a
VPN.

This also fixes an issue with SDP introduced in
36880c3d34 which was only seen on some SIP
providers:

The session name ("s=") line is not relevant for establishing a connection,
the connection data (c=") line is.

See https://datatracker.ietf.org/doc/html/rfc4566 section 5.3 and 5.7
2022-01-08 21:25:09 +00:00

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2.6 KiB
C

/*
* Copyright (C) 2021 Purism SPC
*
* This file is part of Calls.
*
* Calls is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Calls is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Calls. If not, see <http://www.gnu.org/licenses/>.
*
* Author: Evangelos Ribeiro Tzaras <evangelos.tzaras@puri.sm>
*
* SPDX-License-Identifier: GPL-3.0-or-later
*
*/
#pragma once
#include "calls-call.h"
#include <glib-object.h>
#include <sofia-sip/nua.h>
G_BEGIN_DECLS
#define CALLS_TYPE_SIP_CALL (calls_sip_call_get_type ())
G_DECLARE_FINAL_TYPE (CallsSipCall, calls_sip_call, CALLS, SIP_CALL, CallsCall)
CallsSipCall *calls_sip_call_new (const gchar *number,
gboolean inbound,
const char *own_ip,
nua_handle_t *handle);
void calls_sip_call_setup_remote_media_connection (CallsSipCall *self,
const char *remote,
guint port_rtp,
guint port_rtcp);
void calls_sip_call_setup_local_media_connection (CallsSipCall *self,
guint port_rtp,
guint port_rtcp);
void calls_sip_call_activate_media (CallsSipCall *self,
gboolean enabled);
void calls_sip_call_set_state (CallsSipCall *self,
CallsCallState state);
void calls_sip_call_set_codecs (CallsSipCall *self,
GList *codecs);
G_END_DECLS