1 files changed, 0 insertions, 144 deletions
diff --git a/src/mslookup/mdns_sock.c b/src/mslookup/mdns_sock.c
deleted file mode 100644
index 5291660..0000000
--- a/src/mslookup/mdns_sock.c
+++ /dev/null
@@ -1,144 +0,0 @@
-/* Copyright 2019 by sysmocom s.f.m.c. GmbH <info@sysmocom.de>
- *
- * All Rights Reserved
- *
- * This program 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 2 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <errno.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <string.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <arpa/inet.h>
-#include <netinet/in.h>
-#include <netdb.h>
-#include <stdbool.h>
-#include <talloc.h>
-#include <osmocom/core/utils.h>
-#include <osmocom/core/select.h>
-#include <osmocom/hlr/logging.h>
-#include <osmocom/mslookup/mdns_sock.h>
-
-/*! Open socket to send and receive multicast data.
- *
- * The socket is opened with SO_REUSEADDR, so we can bind to the same IP and port multiple times. This socket receives
- * everything sent to that multicast IP/port, including its own data data sent from osmo_mdns_sock_send(). So whenever
- * sending something, the receive callback will be called with the same data and should discard it.
- *
- * \param[in] ip  multicast IPv4 or IPv6 address.
- * \param[in] port  port number.
- * \param[in] cb  callback for incoming data that will be passed to osmo_fd_setup (should read from osmo_fd->fd).
- * \param[in] data  userdata passed to osmo_fd (available in cb as osmo_fd->data).
- * \param[in] priv_nr  additional userdata integer passed to osmo_fd (available in cb as osmo_fd->priv_nr).
- * \returns allocated osmo_mdns_sock, NULL on error.
- */
-struct osmo_mdns_sock *osmo_mdns_sock_init(void *ctx, const char *ip, unsigned int port,
-					   int (*cb)(struct osmo_fd *fd, unsigned int what),
-					   void *data, unsigned int priv_nr)
-{
-	struct osmo_mdns_sock *ret;
-	int sock, rc;
-	struct addrinfo hints = {0};
-	struct ip_mreq multicast_req = {0};
-	in_addr_t iface = INADDR_ANY;
-	char portbuf[10];
-	int y = 1;
-
-	snprintf(portbuf, sizeof(portbuf) -1, "%u", port);
-	ret = talloc_zero(ctx, struct osmo_mdns_sock);
-	OSMO_ASSERT(ret);
-
-	/* Fill addrinfo */
-	hints.ai_family = PF_UNSPEC;
-	hints.ai_socktype = SOCK_DGRAM;
-	hints.ai_flags = (AI_PASSIVE | AI_NUMERICHOST);
-	rc = getaddrinfo(ip, portbuf, &hints, &ret->ai);
-	if (rc != 0) {
-		LOGP(DMSLOOKUP, LOGL_ERROR, "osmo_mdns_sock_init: getaddrinfo: %s\n", gai_strerror(rc));
-		ret->ai = NULL;
-		goto error;
-	}
-
-	/* Open socket */
-	sock = socket(ret->ai->ai_family, ret->ai->ai_socktype, 0);
-	if (sock == -1) {
-		LOGP(DMSLOOKUP, LOGL_ERROR, "osmo_mdns_sock_init: socket: %s\n", strerror(errno));
-		goto error;
-	}
-
-	/* Set multicast options */
-	rc = setsockopt(sock, IPPROTO_IP, IP_MULTICAST_IF, (char*)&iface, sizeof(iface));
-	if (rc == -1) {
-		LOGP(DMSLOOKUP, LOGL_ERROR, "osmo_mdns_sock_init: setsockopt: %s\n", strerror(errno));
-		goto error;
-	}
-	memcpy(&multicast_req.imr_multiaddr, &((struct sockaddr_in*)(ret->ai->ai_addr))->sin_addr,
-	       sizeof(multicast_req.imr_multiaddr));
-	multicast_req.imr_interface.s_addr = htonl(INADDR_ANY);
-	rc = setsockopt(sock, IPPROTO_IP, IP_ADD_MEMBERSHIP, (char*)&multicast_req, sizeof(multicast_req));
-	if (rc == -1) {
-		LOGP(DMSLOOKUP, LOGL_ERROR, "osmo_mdns_sock_init: setsockopt: %s\n", strerror(errno));
-		goto error;
-	}
-
-	/* Always allow binding the same IP and port twice. This is needed in OsmoHLR (where the code becomes cleaner by
-	 * just using a different socket for server and client code) and in the mslookup_client_mdns_test. Also for
-	 * osmo-mslookup-client if it is running multiple times in parallel (i.e. two incoming calls almost at the same
-	 * time need to be resolved with the simple dialplan example that just starts new processes). */
-	rc = setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (char *)&y, sizeof(y));
-	if (rc == -1) {
-		LOGP(DMSLOOKUP, LOGL_ERROR, "osmo_mdns_sock_init: setsockopt: %s\n", strerror(errno));
-		goto error;
-	}
-
-	/* Bind and register osmo_fd callback */
-	rc = bind(sock, ret->ai->ai_addr, ret->ai->ai_addrlen);
-	if (rc == -1) {
-		LOGP(DMSLOOKUP, LOGL_ERROR, "osmo_mdns_sock_init: bind: %s\n", strerror(errno));
-		goto error;
-	}
-	osmo_fd_setup(&ret->osmo_fd, sock, OSMO_FD_READ, cb, data, priv_nr);
-	if (osmo_fd_register(&ret->osmo_fd) != 0)
-		goto error;
-
-	return ret;
-error:
-	if (ret->ai)
-		freeaddrinfo(ret->ai);
-	talloc_free(ret);
-	return NULL;
-}
-
-/*! Send msgb over mdns_sock and consume msgb.
- * \returns 0 on success, -1 on error.
- */
-int osmo_mdns_sock_send(const struct osmo_mdns_sock *mdns_sock, struct msgb *msg)
-{
-	size_t len = msgb_length(msg);
-	int rc = sendto(mdns_sock->osmo_fd.fd, msgb_data(msg), len, 0, mdns_sock->ai->ai_addr,
-			mdns_sock->ai->ai_addrlen);
-	msgb_free(msg);
-	return (rc == len) ? 0 : -1;
-}
-
-/*! Tear down osmo_mdns_sock. */
-void osmo_mdns_sock_cleanup(struct osmo_mdns_sock *mdns_sock)
-{
-	osmo_fd_close(&mdns_sock->osmo_fd);
-	freeaddrinfo(mdns_sock->ai);
-	talloc_free(mdns_sock);
-}