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Purism-Calls/plugins/sip/calls-sip-util.c
Evangelos Ribeiro Tzaras de44a17fe5 sip: use ipv4 exclusively for now
IPv6 should work, but sofia's outbound engine keep printing
errors involving the outbound engine. Working theory:
Failing ICMPv6 (pings) can make sofia think we don't have connectivity.
Note that we also don't get any answers from the SIP servers we tried so far.
2021-04-03 00:08:31 +02:00

77 lines
1.8 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
*
*/
#include "calls-sip-util.h"
gboolean
check_ipv6 (const gchar *host)
{
/* TODO DNS SRV records to determine whether or not to use IPv6 */
return FALSE;
}
gboolean
check_sips (const gchar *addr)
{
/* To keep it simple we only check if the URL starts with "sips:" */
return g_str_has_prefix (addr, "sips:");
}
const gchar *
get_protocol_prefix (const gchar *protocol)
{
if (g_strcmp0 (protocol, "UDP") == 0 ||
g_strcmp0 (protocol, "TCP") == 0)
return "sip";
if (g_strcmp0 (protocol, "TLS") == 0)
return "sips";
return NULL;
}
gboolean
protocol_is_valid (const gchar *protocol)
{
return g_strcmp0 (protocol, "UDP") == 0 ||
g_strcmp0 (protocol, "TCP") == 0 ||
g_strcmp0 (protocol, "TLS") == 0;
}
#define RTP_PORT_MIN 20000
#define RTP_PORT_MAX 65534
guint
get_port_for_rtp (void)
{
const guint rand_range = RTP_PORT_MAX - RTP_PORT_MIN;
guint rand = (g_random_int () % rand_range) + RTP_PORT_MIN;
/* RTP ports must be even */
return rand % 2 == 0 ? rand : rand + 1;
}
#undef RTP_PORT_MIN
#undef RTP_PORT_MAX