From 2aa4a82499d4becd2284cdb482213d541b8804dd Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 28 Apr 2024 16:29:10 +0200 Subject: Adding upstream version 86.0.1. Signed-off-by: Daniel Baumann --- netwerk/srtp/src/test/rtp.c | 227 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 227 insertions(+) create mode 100644 netwerk/srtp/src/test/rtp.c (limited to 'netwerk/srtp/src/test/rtp.c') diff --git a/netwerk/srtp/src/test/rtp.c b/netwerk/srtp/src/test/rtp.c new file mode 100644 index 0000000000..f60a9b11b2 --- /dev/null +++ b/netwerk/srtp/src/test/rtp.c @@ -0,0 +1,227 @@ +/* + * 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 +#include + +#include +#ifdef HAVE_SYS_SOCKET_H +#include +#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); +} -- cgit v1.2.3