prefix sub-directories containing libraries with 'lib'

... and make sure tests work again after restructuring

1 files changed, 0 insertions, 579 deletions

diff --git a/openbsc/src/mgcp/mgcp_network.c b/openbsc/src/mgcp/mgcp_network.c
deleted file mode 100644
index 51c08d151..000000000
--- a/openbsc/src/mgcp/mgcp_network.c
+++ /dev/null
@@ -1,579 +0,0 @@
-/* A Media Gateway Control Protocol Media Gateway: RFC 3435 */
-/* The protocol implementation */
-
-/*
- * (C) 2009-2011 by Holger Hans Peter Freyther <zecke@selfish.org>
- * (C) 2009-2011 by On-Waves
- * All Rights Reserved
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as published by
- * the Free Software Foundation; either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program 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 Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
-
-#include <string.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <errno.h>
-
-#include <sys/socket.h>
-#include <arpa/inet.h>
-
-#include <osmocore/msgb.h>
-#include <osmocore/select.h>
-
-#include <openbsc/debug.h>
-#include <openbsc/mgcp.h>
-#include <openbsc/mgcp_internal.h>
-
-#warning "Make use of the rtp proxy code"
-
-/* attempt to determine byte order */
-#include <sys/types.h>
-#include <sys/param.h>
-#include <limits.h>
-
-#ifndef __BYTE_ORDER
-#error "__BYTE_ORDER should be defined by someone"
-#endif
-
-/* according to rtp_proxy.c RFC 3550 */
-struct rtp_hdr {
-#if __BYTE_ORDER == __LITTLE_ENDIAN
-	uint8_t  csrc_count:4,
-		  extension:1,
-		  padding:1,
-		  version:2;
-	uint8_t  payload_type:7,
-		  marker:1;
-#elif __BYTE_ORDER == __BIG_ENDIAN
-	uint8_t  version:2,
-		  padding:1,
-		  extension:1,
-		  csrc_count:4;
-	uint8_t  marker:1,
-		  payload_type:7;
-#endif
-	uint16_t sequence;
-	uint32_t timestamp;
-	uint32_t ssrc;
-} __attribute__((packed));
-
-
-enum {
-	DEST_NETWORK = 0,
-	DEST_BTS = 1,
-};
-
-enum {
-	PROTO_RTP,
-	PROTO_RTCP,
-};
-
-#define DUMMY_LOAD 0x23
-
-
-static int udp_send(int fd, struct in_addr *addr, int port, char *buf, int len)
-{
-	struct sockaddr_in out;
-	out.sin_family = AF_INET;
-	out.sin_port = port;
-	memcpy(&out.sin_addr, addr, sizeof(*addr));
-
-	return sendto(fd, buf, len, 0, (struct sockaddr *)&out, sizeof(out));
-}
-
-int mgcp_send_dummy(struct mgcp_endpoint *endp)
-{
-	static char buf[] = { DUMMY_LOAD };
-
-	return udp_send(endp->net_end.rtp.fd, &endp->net_end.addr,
-			endp->net_end.rtp_port, buf, 1);
-}
-
-static void patch_and_count(struct mgcp_endpoint *endp, struct mgcp_rtp_state *state,
-			    int payload, struct sockaddr_in *addr, char *data, int len)
-{
-	uint16_t seq;
-	uint32_t timestamp;
-	struct rtp_hdr *rtp_hdr;
-
-	if (len < sizeof(*rtp_hdr))
-		return;
-
-	rtp_hdr = (struct rtp_hdr *) data;
-	seq = ntohs(rtp_hdr->sequence);
-	timestamp = ntohl(rtp_hdr->timestamp);
-
-	if (!state->initialized) {
-		state->seq_no = seq - 1;
-		state->ssrc = state->orig_ssrc = rtp_hdr->ssrc;
-		state->initialized = 1;
-		state->last_timestamp = timestamp;
-	} else if (state->ssrc != rtp_hdr->ssrc) {
-		state->ssrc = rtp_hdr->ssrc;
-		state->seq_offset = (state->seq_no + 1) - seq;
-		state->timestamp_offset = state->last_timestamp - timestamp;
-		state->patch = endp->allow_patch;
-		LOGP(DMGCP, LOGL_NOTICE,
-			"The SSRC changed on 0x%x SSRC: %u offset: %d from %s:%d in %d\n",
-			ENDPOINT_NUMBER(endp), state->ssrc, state->seq_offset,
-			inet_ntoa(addr->sin_addr), ntohs(addr->sin_port), endp->conn_mode);
-	}
-
-	/* apply the offset and store it back to the packet */
-	if (state->patch) {
-		seq += state->seq_offset;
-		rtp_hdr->sequence = htons(seq);
-		rtp_hdr->ssrc = state->orig_ssrc;
-
-		timestamp += state->timestamp_offset;
-		rtp_hdr->timestamp = htonl(timestamp);
-	}
-
-	/* seq changed, now compare if we have lost something */
-	if (state->seq_no + 1u != seq)
-		state->lost_no = abs(seq - (state->seq_no + 1));
-	state->seq_no = seq;
-
-	state->last_timestamp = timestamp;
-
-	if (payload < 0)
-		return;
-
-	rtp_hdr->payload_type = payload;
-}
-
-/*
- * The below code is for dispatching. We have a dedicated port for
- * the data coming from the net and one to discover the BTS.
- */
-static int forward_data(int fd, struct mgcp_rtp_tap *tap, const char *buf, int len)
-{
-	if (!tap->enabled)
-		return 0;
-
-	return sendto(fd, buf, len, 0,
-		      (struct sockaddr *)&tap->forward, sizeof(tap->forward));
-}
-
-static int send_transcoder(struct mgcp_rtp_end *end, struct mgcp_config *cfg,
-			   int is_rtp, const char *buf, int len)
-{
-	int rc;
-	int port;
-	struct sockaddr_in addr;
-
-	port = is_rtp ? end->rtp_port : end->rtcp_port;
-
-	addr.sin_family = AF_INET;
-	addr.sin_addr = cfg->transcoder_in;
-	addr.sin_port = port;
-
-	rc = sendto(is_rtp ?
-		end->rtp.fd :
-		end->rtcp.fd, buf, len, 0,
-		(struct sockaddr *) &addr, sizeof(addr));
-
-	if (rc != len)
-		LOGP(DMGCP, LOGL_ERROR,
-			"Failed to send data to the transcoder: %s\n",
-			strerror(errno));
-
-	return rc;
-}
-
-static int send_to(struct mgcp_endpoint *endp, int dest, int is_rtp,
-		   struct sockaddr_in *addr, char *buf, int rc)
-{
-	struct mgcp_trunk_config *tcfg = endp->tcfg;
-	/* For loop toggle the destination and then dispatch. */
-	if (tcfg->audio_loop)
-		dest = !dest;
-
-	/* Loop based on the conn_mode, maybe undoing the above */
-	if (endp->conn_mode == MGCP_CONN_LOOPBACK)
-		dest = !dest;
-
-	if (dest == DEST_NETWORK) {
-		if (is_rtp) {
-			patch_and_count(endp, &endp->bts_state,
-					endp->net_end.payload_type,
-					addr, buf, rc);
-			forward_data(endp->net_end.rtp.fd,
-				     &endp->taps[MGCP_TAP_NET_OUT], buf, rc);
-			return udp_send(endp->net_end.rtp.fd, &endp->net_end.addr,
-					endp->net_end.rtp_port, buf, rc);
-		} else {
-			return udp_send(endp->net_end.rtcp.fd, &endp->net_end.addr,
-					endp->net_end.rtcp_port, buf, rc);
-		}
-	} else {
-		if (is_rtp) {
-			patch_and_count(endp, &endp->net_state,
-					endp->bts_end.payload_type,
-					addr, buf, rc);
-			forward_data(endp->bts_end.rtp.fd,
-				     &endp->taps[MGCP_TAP_BTS_OUT], buf, rc);
-			return udp_send(endp->bts_end.rtp.fd, &endp->bts_end.addr,
-					endp->bts_end.rtp_port, buf, rc);
-		} else {
-			return udp_send(endp->bts_end.rtcp.fd, &endp->bts_end.addr,
-					endp->bts_end.rtcp_port, buf, rc);
-		}
-	}
-}
-
-static int recevice_from(struct mgcp_endpoint *endp, int fd, struct sockaddr_in *addr,
-			 char *buf, int bufsize)
-{
-	int rc;
-	socklen_t slen = sizeof(*addr);
-
-	rc = recvfrom(fd, buf, bufsize, 0,
-			    (struct sockaddr *) addr, &slen);
-	if (rc < 0) {
-		LOGP(DMGCP, LOGL_ERROR, "Failed to receive message on: 0x%x errno: %d/%s\n",
-			ENDPOINT_NUMBER(endp), errno, strerror(errno));
-		return -1;
-	}
-
-	/* do not forward aynthing... maybe there is a packet from the bts */
-	if (!endp->allocated)
-		return -1;
-
-	#warning "Slight spec violation. With connection mode recvonly we should attempt to forward."
-
-	return rc;
-}
-
-static int rtp_data_net(struct bsc_fd *fd, unsigned int what)
-{
-	char buf[4096];
-	struct sockaddr_in addr;
-	struct mgcp_endpoint *endp;
-	int rc, proto;
-
-	endp = (struct mgcp_endpoint *) fd->data;
-
-	rc = recevice_from(endp, fd->fd, &addr, buf, sizeof(buf));
-	if (rc <= 0)
-		return -1;
-
-	if (memcmp(&addr.sin_addr, &endp->net_end.addr, sizeof(addr.sin_addr)) != 0) {
-		LOGP(DMGCP, LOGL_ERROR,
-			"Data from wrong address %s on 0x%x\n",
-			inet_ntoa(addr.sin_addr), ENDPOINT_NUMBER(endp));
-		return -1;
-	}
-
-	if (endp->net_end.rtp_port != addr.sin_port &&
-	    endp->net_end.rtcp_port != addr.sin_port) {
-		LOGP(DMGCP, LOGL_ERROR,
-			"Data from wrong source port %d on 0x%x\n",
-			ntohs(addr.sin_port), ENDPOINT_NUMBER(endp));
-		return -1;
-	}
-
-	/* throw away the dummy message */
-	if (rc == 1 && buf[0] == DUMMY_LOAD) {
-		LOGP(DMGCP, LOGL_NOTICE, "Filtered dummy from network on 0x%x\n",
-			ENDPOINT_NUMBER(endp));
-		return 0;
-	}
-
-	proto = fd == &endp->net_end.rtp ? PROTO_RTP : PROTO_RTCP;
-	endp->net_end.packets += 1;
-
-	forward_data(fd->fd, &endp->taps[MGCP_TAP_NET_IN], buf, rc);
-	if (endp->is_transcoded)
-		return send_transcoder(&endp->trans_net, endp->cfg, proto == PROTO_RTP, &buf[0], rc);
-	else
-		return send_to(endp, DEST_BTS, proto == PROTO_RTP, &addr, &buf[0], rc);
-}
-
-static void discover_bts(struct mgcp_endpoint *endp, int proto, struct sockaddr_in *addr)
-{
-	struct mgcp_config *cfg = endp->cfg;
-
-	if (proto == PROTO_RTP && endp->bts_end.rtp_port == 0) {
-		if (!cfg->bts_ip ||
-		    memcmp(&addr->sin_addr,
-			   &cfg->bts_in, sizeof(cfg->bts_in)) == 0 ||
-		    memcmp(&addr->sin_addr,
-			   &endp->bts_end.addr, sizeof(endp->bts_end.addr)) == 0) {
-
-			endp->bts_end.rtp_port = addr->sin_port;
-			endp->bts_end.addr = addr->sin_addr;
-
-			LOGP(DMGCP, LOGL_NOTICE,
-				"Found BTS for endpoint: 0x%x on port: %d/%d of %s\n",
-				ENDPOINT_NUMBER(endp), ntohs(endp->bts_end.rtp_port),
-				ntohs(endp->bts_end.rtcp_port), inet_ntoa(addr->sin_addr));
-		}
-	} else if (proto == PROTO_RTCP && endp->bts_end.rtcp_port == 0) {
-		if (memcmp(&endp->bts_end.addr, &addr->sin_addr,
-				sizeof(endp->bts_end.addr)) == 0) {
-			endp->bts_end.rtcp_port = addr->sin_port;
-		}
-	}
-}
-
-static int rtp_data_bts(struct bsc_fd *fd, unsigned int what)
-{
-	char buf[4096];
-	struct sockaddr_in addr;
-	struct mgcp_endpoint *endp;
-	struct mgcp_config *cfg;
-	int rc, proto;
-
-	endp = (struct mgcp_endpoint *) fd->data;
-	cfg = endp->cfg;
-
-	rc = recevice_from(endp, fd->fd, &addr, buf, sizeof(buf));
-	if (rc <= 0)
-		return -1;
-
-	proto = fd == &endp->bts_end.rtp ? PROTO_RTP : PROTO_RTCP;
-
-	/* We have no idea who called us, maybe it is the BTS. */
-	/* it was the BTS... */
-	discover_bts(endp, proto, &addr);
-
-	if (memcmp(&endp->bts_end.addr, &addr.sin_addr, sizeof(addr.sin_addr)) != 0) {
-		LOGP(DMGCP, LOGL_ERROR,
-			"Data from wrong bts %s on 0x%x\n",
-			inet_ntoa(addr.sin_addr), ENDPOINT_NUMBER(endp));
-		return -1;
-	}
-
-	if (endp->bts_end.rtp_port != addr.sin_port &&
-	    endp->bts_end.rtcp_port != addr.sin_port) {
-		LOGP(DMGCP, LOGL_ERROR,
-			"Data from wrong bts source port %d on 0x%x\n",
-			ntohs(addr.sin_port), ENDPOINT_NUMBER(endp));
-		return -1;
-	}
-
-	/* throw away the dummy message */
-	if (rc == 1 && buf[0] == DUMMY_LOAD) {
-		LOGP(DMGCP, LOGL_NOTICE, "Filtered dummy from bts on 0x%x\n",
-			ENDPOINT_NUMBER(endp));
-		return 0;
-	}
-
-	/* do this before the loop handling */
-	endp->bts_end.packets += 1;
-
-	forward_data(fd->fd, &endp->taps[MGCP_TAP_BTS_IN], buf, rc);
-	if (endp->is_transcoded)
-		return send_transcoder(&endp->trans_bts, endp->cfg, proto == PROTO_RTP, &buf[0], rc);
-	else
-		return send_to(endp, DEST_NETWORK, proto == PROTO_RTP, &addr, &buf[0], rc);
-}
-
-static int rtp_data_transcoder(struct mgcp_rtp_end *end, struct mgcp_endpoint *_endp,
-			      int dest, struct bsc_fd *fd)
-{
-	char buf[4096];
-	struct sockaddr_in addr;
-	struct mgcp_config *cfg;
-	int rc, proto;
-
-	cfg = _endp->cfg;
-	rc = recevice_from(_endp, fd->fd, &addr, buf, sizeof(buf));
-	if (rc <= 0)
-		return -1;
-
-	proto = fd == &end->rtp ? PROTO_RTP : PROTO_RTCP;
-
-	if (memcmp(&addr.sin_addr, &cfg->transcoder_in, sizeof(addr.sin_addr)) != 0) {
-		LOGP(DMGCP, LOGL_ERROR,
-			"Data not coming from transcoder dest: %d %s on 0x%x\n",
-			dest, inet_ntoa(addr.sin_addr), ENDPOINT_NUMBER(_endp));
-		return -1;
-	}
-
-	if (end->rtp_port != addr.sin_port &&
-	    end->rtcp_port != addr.sin_port) {
-		LOGP(DMGCP, LOGL_ERROR,
-			"Data from wrong transcoder dest %d source port %d on 0x%x\n",
-			dest, ntohs(addr.sin_port), ENDPOINT_NUMBER(_endp));
-		return -1;
-	}
-
-	/* throw away the dummy message */
-	if (rc == 1 && buf[0] == DUMMY_LOAD) {
-		LOGP(DMGCP, LOGL_NOTICE, "Filtered dummy from transcoder dest %d on 0x%x\n",
-			dest, ENDPOINT_NUMBER(_endp));
-		return 0;
-	}
-
-	end->packets += 1;
-	return send_to(_endp, dest, proto == PROTO_RTP, &addr, &buf[0], rc);
-}
-
-static int rtp_data_trans_net(struct bsc_fd *fd, unsigned int what)
-{
-	struct mgcp_endpoint *endp;
-	endp = (struct mgcp_endpoint *) fd->data;
-
-	return rtp_data_transcoder(&endp->trans_net, endp, DEST_NETWORK, fd);
-}
-
-static int rtp_data_trans_bts(struct bsc_fd *fd, unsigned int what)
-{
-	struct mgcp_endpoint *endp;
-	endp = (struct mgcp_endpoint *) fd->data;
-
-	return rtp_data_transcoder(&endp->trans_bts, endp, DEST_BTS, fd);
-}
-
-static int create_bind(const char *source_addr, struct bsc_fd *fd, int port)
-{
-	struct sockaddr_in addr;
-	int on = 1;
-
-	fd->fd = socket(AF_INET, SOCK_DGRAM, 0);
-	if (fd->fd < 0) {
-		LOGP(DMGCP, LOGL_ERROR, "Failed to create UDP port.\n");
-		return -1;
-	}
-
-	setsockopt(fd->fd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
-	memset(&addr, 0, sizeof(addr));
-	addr.sin_family = AF_INET;
-	addr.sin_port = htons(port);
-	inet_aton(source_addr, &addr.sin_addr);
-
-	if (bind(fd->fd, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
-		close(fd->fd);
-		fd->fd = -1;
-		return -1;
-	}
-
-	return 0;
-}
-
-static int set_ip_tos(int fd, int tos)
-{
-	int ret;
-	ret = setsockopt(fd, IPPROTO_IP, IP_TOS,
-			 &tos, sizeof(tos));
-	return ret != 0;
-}
-
-static int bind_rtp(struct mgcp_config *cfg, struct mgcp_rtp_end *rtp_end, int endpno)
-{
-	if (create_bind(cfg->source_addr, &rtp_end->rtp, rtp_end->local_port) != 0) {
-		LOGP(DMGCP, LOGL_ERROR, "Failed to create RTP port: %s:%d on 0x%x\n",
-		       cfg->source_addr, rtp_end->local_port, endpno);
-		goto cleanup0;
-	}
-
-	if (create_bind(cfg->source_addr, &rtp_end->rtcp, rtp_end->local_port + 1) != 0) {
-		LOGP(DMGCP, LOGL_ERROR, "Failed to create RTCP port: %s:%d on 0x%x\n",
-		       cfg->source_addr, rtp_end->local_port + 1, endpno);
-		goto cleanup1;
-	}
-
-	set_ip_tos(rtp_end->rtp.fd, cfg->endp_dscp);
-	set_ip_tos(rtp_end->rtcp.fd, cfg->endp_dscp);
-
-	rtp_end->rtp.when = BSC_FD_READ;
-	if (bsc_register_fd(&rtp_end->rtp) != 0) {
-		LOGP(DMGCP, LOGL_ERROR, "Failed to register RTP port %d on 0x%x\n",
-			rtp_end->local_port, endpno);
-		goto cleanup2;
-	}
-
-	rtp_end->rtcp.when = BSC_FD_READ;
-	if (bsc_register_fd(&rtp_end->rtcp) != 0) {
-		LOGP(DMGCP, LOGL_ERROR, "Failed to register RTCP port %d on 0x%x\n",
-			rtp_end->local_port + 1, endpno);
-		goto cleanup3;
-	}
-
-	return 0;
-
-cleanup3:
-	bsc_unregister_fd(&rtp_end->rtp);
-cleanup2:
-	close(rtp_end->rtcp.fd);
-	rtp_end->rtcp.fd = -1;
-cleanup1:
-	close(rtp_end->rtp.fd);
-	rtp_end->rtp.fd = -1;
-cleanup0:
-	return -1;
-}
-
-static int int_bind(const char *port,
-		    struct mgcp_rtp_end *end, int (*cb)(struct bsc_fd *, unsigned),
-		    struct mgcp_endpoint *_endp, int rtp_port)
-{
-	if (end->rtp.fd != -1 || end->rtcp.fd != -1) {
-		LOGP(DMGCP, LOGL_ERROR, "Previous %s was still bound on %d\n",
-			port, ENDPOINT_NUMBER(_endp));
-		mgcp_free_rtp_port(end);
-	}
-
-	end->local_port = rtp_port;
-	end->rtp.cb = cb;
-	end->rtp.data = _endp;
-	end->rtcp.data = _endp;
-	end->rtcp.cb = cb;
-	return bind_rtp(_endp->cfg, end, ENDPOINT_NUMBER(_endp));
-}
-
-
-int mgcp_bind_bts_rtp_port(struct mgcp_endpoint *endp, int rtp_port)
-{
-	return int_bind("bts-port", &endp->bts_end,
-			rtp_data_bts, endp, rtp_port);
-}
-
-int mgcp_bind_net_rtp_port(struct mgcp_endpoint *endp, int rtp_port)
-{
-	return int_bind("net-port", &endp->net_end,
-			rtp_data_net, endp, rtp_port);
-}
-
-int mgcp_bind_trans_net_rtp_port(struct mgcp_endpoint *endp, int rtp_port)
-{
-	return int_bind("trans-net", &endp->trans_net,
-			rtp_data_trans_net, endp, rtp_port);
-}
-
-int mgcp_bind_trans_bts_rtp_port(struct mgcp_endpoint *endp, int rtp_port)
-{
-	return int_bind("trans-bts", &endp->trans_bts,
-			rtp_data_trans_bts, endp, rtp_port);
-}
-
-int mgcp_free_rtp_port(struct mgcp_rtp_end *end)
-{
-	if (end->rtp.fd != -1) {
-		close(end->rtp.fd);
-		end->rtp.fd = -1;
-		bsc_unregister_fd(&end->rtp);
-	}
-
-	if (end->rtcp.fd != -1) {
-		close(end->rtcp.fd);
-		end->rtcp.fd = -1;
-		bsc_unregister_fd(&end->rtcp);
-	}
-
-	return 0;
-}