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-rw-r--r--netwerk/srtp/src/test/rtp.c227
1 files changed, 227 insertions, 0 deletions
diff --git a/netwerk/srtp/src/test/rtp.c b/netwerk/srtp/src/test/rtp.c
new file mode 100644
index 0000000000..f60a9b11b2
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+++ b/netwerk/srtp/src/test/rtp.c
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+/*
+ * rtp.c
+ *
+ * library functions for the real-time transport protocol
+ *
+ * David A. McGrew
+ * Cisco Systems, Inc.
+ */
+
+/*
+ *
+ * Copyright (c) 2001-2017, Cisco Systems, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials provided
+ * with the distribution.
+ *
+ * Neither the name of the Cisco Systems, Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include "rtp.h"
+
+#include <stdio.h>
+#include <string.h>
+
+#include <sys/types.h>
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+
+#define PRINT_DEBUG 0 /* set to 1 to print out debugging data */
+#define VERBOSE_DEBUG 0 /* set to 1 to print out more data */
+
+int rtp_sendto(rtp_sender_t sender, const void *msg, int len)
+{
+ int octets_sent;
+ srtp_err_status_t stat;
+ int pkt_len = len + RTP_HEADER_LEN;
+
+ /* marshal data */
+ strncpy(sender->message.body, msg, len);
+
+ /* update header */
+ sender->message.header.seq = ntohs(sender->message.header.seq) + 1;
+ sender->message.header.seq = htons(sender->message.header.seq);
+ sender->message.header.ts = ntohl(sender->message.header.ts) + 1;
+ sender->message.header.ts = htonl(sender->message.header.ts);
+
+ /* apply srtp */
+ stat = srtp_protect(sender->srtp_ctx, &sender->message.header, &pkt_len);
+ if (stat) {
+#if PRINT_DEBUG
+ fprintf(stderr, "error: srtp protection failed with code %d\n", stat);
+#endif
+ return -1;
+ }
+#if VERBOSE_DEBUG
+ srtp_print_packet(&sender->message.header, pkt_len);
+#endif
+ octets_sent =
+ sendto(sender->socket, (void *)&sender->message, pkt_len, 0,
+ (struct sockaddr *)&sender->addr, sizeof(struct sockaddr_in));
+
+ if (octets_sent != pkt_len) {
+#if PRINT_DEBUG
+ fprintf(stderr, "error: couldn't send message %s", (char *)msg);
+ perror("");
+#endif
+ }
+
+ return octets_sent;
+}
+
+int rtp_recvfrom(rtp_receiver_t receiver, void *msg, int *len)
+{
+ int octets_recvd;
+ srtp_err_status_t stat;
+
+ octets_recvd = recvfrom(receiver->socket, (void *)&receiver->message, *len,
+ 0, (struct sockaddr *)NULL, 0);
+
+ if (octets_recvd == -1) {
+ *len = 0;
+ return -1;
+ }
+
+ /* verify rtp header */
+ if (receiver->message.header.version != 2) {
+ *len = 0;
+ return -1;
+ }
+
+#if PRINT_DEBUG
+ fprintf(stderr, "%d octets received from SSRC %u\n", octets_recvd,
+ receiver->message.header.ssrc);
+#endif
+#if VERBOSE_DEBUG
+ srtp_print_packet(&receiver->message.header, octets_recvd);
+#endif
+
+ /* apply srtp */
+ stat = srtp_unprotect(receiver->srtp_ctx, &receiver->message.header,
+ &octets_recvd);
+ if (stat) {
+ fprintf(stderr, "error: srtp unprotection failed with code %d%s\n",
+ stat,
+ stat == srtp_err_status_replay_fail
+ ? " (replay check failed)"
+ : stat == srtp_err_status_auth_fail ? " (auth check failed)"
+ : "");
+ return -1;
+ }
+ strncpy(msg, receiver->message.body, octets_recvd);
+
+ return octets_recvd;
+}
+
+int rtp_sender_init(rtp_sender_t sender,
+ int sock,
+ struct sockaddr_in addr,
+ unsigned int ssrc)
+{
+ /* set header values */
+ sender->message.header.ssrc = htonl(ssrc);
+ sender->message.header.ts = 0;
+ sender->message.header.seq = (uint16_t)rand();
+ sender->message.header.m = 0;
+ sender->message.header.pt = 0x1;
+ sender->message.header.version = 2;
+ sender->message.header.p = 0;
+ sender->message.header.x = 0;
+ sender->message.header.cc = 0;
+
+ /* set other stuff */
+ sender->socket = sock;
+ sender->addr = addr;
+
+ return 0;
+}
+
+int rtp_receiver_init(rtp_receiver_t rcvr,
+ int sock,
+ struct sockaddr_in addr,
+ unsigned int ssrc)
+{
+ /* set header values */
+ rcvr->message.header.ssrc = htonl(ssrc);
+ rcvr->message.header.ts = 0;
+ rcvr->message.header.seq = 0;
+ rcvr->message.header.m = 0;
+ rcvr->message.header.pt = 0x1;
+ rcvr->message.header.version = 2;
+ rcvr->message.header.p = 0;
+ rcvr->message.header.x = 0;
+ rcvr->message.header.cc = 0;
+
+ /* set other stuff */
+ rcvr->socket = sock;
+ rcvr->addr = addr;
+
+ return 0;
+}
+
+int rtp_sender_init_srtp(rtp_sender_t sender, const srtp_policy_t *policy)
+{
+ return srtp_create(&sender->srtp_ctx, policy);
+}
+
+int rtp_sender_deinit_srtp(rtp_sender_t sender)
+{
+ return srtp_dealloc(sender->srtp_ctx);
+}
+
+int rtp_receiver_init_srtp(rtp_receiver_t sender, const srtp_policy_t *policy)
+{
+ return srtp_create(&sender->srtp_ctx, policy);
+}
+
+int rtp_receiver_deinit_srtp(rtp_receiver_t sender)
+{
+ return srtp_dealloc(sender->srtp_ctx);
+}
+
+rtp_sender_t rtp_sender_alloc(void)
+{
+ return (rtp_sender_t)malloc(sizeof(rtp_sender_ctx_t));
+}
+
+void rtp_sender_dealloc(rtp_sender_t rtp_ctx)
+{
+ free(rtp_ctx);
+}
+
+rtp_receiver_t rtp_receiver_alloc(void)
+{
+ return (rtp_receiver_t)malloc(sizeof(rtp_receiver_ctx_t));
+}
+
+void rtp_receiver_dealloc(rtp_receiver_t rtp_ctx)
+{
+ free(rtp_ctx);
+}
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