view src/set_remote.c @ 37:8f1700a42ca5 default tip

set_remote: add functions for IPv6 and for sockaddr_{in,in6} A convenient way to pass in remote end address as struct sockaddr_in is needed for tw-border-mgw; IPv6 support will be needed in order to bring twrtp_endp into Osmocom mainline.
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 23 Nov 2024 19:08:28 +0000
parents 587437b62ed5
children
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/*
 * Here we implement functions for setting the remote end on themwi_endp,
 * both IPv4 and IPv6.
 */

#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <stdint.h>
#include <stdbool.h>
#include <string.h>

#include <themwi/rtp/endp.h>

void twrtp_endp_set_remote_ipv4(struct twrtp_endp *endp,
				const struct in_addr *ip, uint16_t port)
{
	endp->rtp_remote.u.sin.sin_family = AF_INET;
	memcpy(&endp->rtp_remote.u.sin.sin_addr, ip, sizeof(struct in_addr));
	endp->rtp_remote.u.sin.sin_port = htons(port);

	endp->rtcp_remote.u.sin.sin_family = AF_INET;
	memcpy(&endp->rtcp_remote.u.sin.sin_addr, ip, sizeof(struct in_addr));
	endp->rtcp_remote.u.sin.sin_port = htons(port + 1);

	endp->remote_set = true;
}

void twrtp_endp_set_remote_ipv6(struct twrtp_endp *endp,
				const struct in6_addr *ip6, uint16_t port)
{
	endp->rtp_remote.u.sin6.sin6_family = AF_INET6;
	memcpy(&endp->rtp_remote.u.sin6.sin6_addr, ip6,
		sizeof(struct in6_addr));
	endp->rtp_remote.u.sin6.sin6_port = htons(port);

	endp->rtcp_remote.u.sin6.sin6_family = AF_INET6;
	memcpy(&endp->rtcp_remote.u.sin6.sin6_addr, ip6,
		sizeof(struct in6_addr));
	endp->rtcp_remote.u.sin6.sin6_port = htons(port + 1);

	endp->remote_set = true;
}

void twrtp_endp_set_remote_sin(struct twrtp_endp *endp,
				const struct sockaddr_in *sin)
{
	twrtp_endp_set_remote_ipv4(endp, &sin->sin_addr, ntohs(sin->sin_port));
}

void twrtp_endp_set_remote_sin6(struct twrtp_endp *endp,
				const struct sockaddr_in6 *sin6)
{
	twrtp_endp_set_remote_ipv6(endp, &sin6->sin6_addr,
				   ntohs(sin6->sin6_port));
}