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-rw-r--r--test/rtpw.c523
1 files changed, 0 insertions, 523 deletions
diff --git a/test/rtpw.c b/test/rtpw.c
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--- a/test/rtpw.c
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@@ -1,523 +0,0 @@
-/*
- * rtpw.c
- *
- * rtp word sender/receiver
- *
- * David A. McGrew
- * Cisco Systems, Inc.
- *
- * This app is a simple RTP application intended only for testing
- * libsrtp. It reads one word at a time from /usr/dict/words (or
- * whatever file is specified as DICT_FILE), and sends one word out
- * each USEC_RATE microseconds. Secure RTP protections can be
- * applied. See the usage() function for more details.
- *
- */
-
-/*
- *
- * Copyright (c) 2001-2006, 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 "datatypes.h"
-#include "getopt_s.h" /* for local getopt() */
-
-#include <stdio.h> /* for printf, fprintf */
-#include <stdlib.h> /* for atoi() */
-#include <errno.h>
-#include <unistd.h> /* for close() */
-
-#include <string.h> /* for strncpy() */
-#include <time.h> /* for usleep() */
-#ifdef HAVE_SYS_SOCKET_H
-# include <sys/socket.h>
-#endif
-#ifdef HAVE_NETINET_IN_H
-# include <netinet/in.h>
-#elif defined HAVE_WINSOCK2_H
-# include <winsock2.h>
-# include <ws2tcpip.h>
-# define RTPW_USE_WINSOCK2 1
-#endif
-#ifdef HAVE_ARPA_INET_H
-# include <arpa/inet.h>
-#endif
-
-#include "srtp.h"
-#include "rtp.h"
-
-#ifdef RTPW_USE_WINSOCK2
-# define DICT_FILE "words.txt"
-#else
-# define DICT_FILE "/usr/share/dict/words"
-#endif
-#define USEC_RATE (5e5)
-#define MAX_WORD_LEN 128
-#define ADDR_IS_MULTICAST(a) IN_MULTICAST(htonl(a))
-#define MAX_KEY_LEN 64
-#define MASTER_KEY_LEN 30
-
-
-#ifndef HAVE_USLEEP
-# ifdef HAVE_WINDOWS_H
-# define usleep(us) Sleep((us)/1000)
-# else
-# define usleep(us) sleep((us)/1000000)
-# endif
-#endif
-
-
-/*
- * the function usage() prints an error message describing how this
- * program should be called, then calls exit()
- */
-
-void
-usage(char *prog_name);
-
-/*
- * leave_group(...) de-registers from a multicast group
- */
-
-void
-leave_group(int sock, struct ip_mreq mreq, char *name);
-
-
-/*
- * program_type distinguishes the [s]rtp sender and receiver cases
- */
-
-typedef enum { sender, receiver, unknown } program_type;
-
-int
-main (int argc, char *argv[]) {
- char *dictfile = DICT_FILE;
- FILE *dict;
- char word[MAX_WORD_LEN];
- int sock, ret;
- struct in_addr rcvr_addr;
- struct sockaddr_in name;
- struct ip_mreq mreq;
-#if BEW
- struct sockaddr_in local;
-#endif
- program_type prog_type = unknown;
- sec_serv_t sec_servs = sec_serv_none;
- unsigned char ttl = 5;
- int c;
- char *input_key = NULL;
- char *address = NULL;
- char key[MAX_KEY_LEN];
- unsigned short port = 0;
- rtp_sender_t snd;
- srtp_policy_t policy;
- err_status_t status;
- int len;
- int do_list_mods = 0;
- uint32_t ssrc = 0xdeadbeef; /* ssrc value hardcoded for now */
-#ifdef RTPW_USE_WINSOCK2
- WORD wVersionRequested = MAKEWORD(2, 0);
- WSADATA wsaData;
-
- ret = WSAStartup(wVersionRequested, &wsaData);
- if (ret != 0) {
- fprintf(stderr, "error: WSAStartup() failed: %d\n", ret);
- exit(1);
- }
-#endif
-
- /* initialize srtp library */
- status = srtp_init();
- if (status) {
- printf("error: srtp initialization failed with error code %d\n", status);
- exit(1);
- }
-
- /* check args */
- while (1) {
- c = getopt_s(argc, argv, "k:rsaeld:");
- if (c == -1) {
- break;
- }
- switch (c) {
- case 'k':
- input_key = optarg_s;
- break;
- case 'e':
- sec_servs |= sec_serv_conf;
- break;
- case 'a':
- sec_servs |= sec_serv_auth;
- break;
- case 'r':
- prog_type = receiver;
- break;
- case 's':
- prog_type = sender;
- break;
- case 'd':
- status = crypto_kernel_set_debug_module(optarg_s, 1);
- if (status) {
- printf("error: set debug module (%s) failed\n", optarg_s);
- exit(1);
- }
- break;
- case 'l':
- do_list_mods = 1;
- break;
- default:
- usage(argv[0]);
- }
- }
-
- if (prog_type == unknown) {
- if (do_list_mods) {
- status = crypto_kernel_list_debug_modules();
- if (status) {
- printf("error: list of debug modules failed\n");
- exit(1);
- }
- return 0;
- } else {
- printf("error: neither sender [-s] nor receiver [-r] specified\n");
- usage(argv[0]);
- }
- }
-
- if ((sec_servs && !input_key) || (!sec_servs && input_key)) {
- /*
- * a key must be provided if and only if security services have
- * been requested
- */
- usage(argv[0]);
- }
-
- if (argc != optind_s + 2) {
- /* wrong number of arguments */
- usage(argv[0]);
- }
-
- /* get address from arg */
- address = argv[optind_s++];
-
- /* get port from arg */
- port = atoi(argv[optind_s++]);
-
- /* set address */
-#ifdef HAVE_INET_ATON
- if (0 == inet_aton(address, &rcvr_addr)) {
- fprintf(stderr, "%s: cannot parse IP v4 address %s\n", argv[0], address);
- exit(1);
- }
- if (rcvr_addr.s_addr == INADDR_NONE) {
- fprintf(stderr, "%s: address error", argv[0]);
- exit(1);
- }
-#else
- rcvr_addr.s_addr = inet_addr(address);
- if (0xffffffff == rcvr_addr.s_addr) {
- fprintf(stderr, "%s: cannot parse IP v4 address %s\n", argv[0], address);
- exit(1);
- }
-#endif
-
- /* open socket */
- sock = socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP);
- if (sock < 0) {
- int err;
-#ifdef RTPW_USE_WINSOCK2
- err = WSAGetLastError();
-#else
- err = errno;
-#endif
- fprintf(stderr, "%s: couldn't open socket: %d\n", argv[0], err);
- exit(1);
- }
-
- name.sin_addr = rcvr_addr;
- name.sin_family = PF_INET;
- name.sin_port = htons(port);
-
- if (ADDR_IS_MULTICAST(rcvr_addr.s_addr)) {
- if (prog_type == sender) {
- ret = setsockopt(sock, IPPROTO_IP, IP_MULTICAST_TTL, &ttl,
- sizeof(ttl));
- if (ret < 0) {
- fprintf(stderr, "%s: Failed to set TTL for multicast group", argv[0]);
- perror("");
- exit(1);
- }
- }
-
- mreq.imr_multiaddr.s_addr = rcvr_addr.s_addr;
- mreq.imr_interface.s_addr = htonl(INADDR_ANY);
- ret = setsockopt(sock, IPPROTO_IP, IP_ADD_MEMBERSHIP, (void*)&mreq,
- sizeof(mreq));
- if (ret < 0) {
- fprintf(stderr, "%s: Failed to join multicast group", argv[0]);
- perror("");
- exit(1);
- }
- }
-
- /* report security services selected on the command line */
- printf("security services: ");
- if (sec_servs & sec_serv_conf)
- printf("confidentiality ");
- if (sec_servs & sec_serv_auth)
- printf("message authentication");
- if (sec_servs == sec_serv_none)
- printf("none");
- printf("\n");
-
- /* set up the srtp policy and master key */
- if (sec_servs) {
- /*
- * create policy structure, using the default mechanisms but
- * with only the security services requested on the command line,
- * using the right SSRC value
- */
- switch (sec_servs) {
- case sec_serv_conf_and_auth:
- crypto_policy_set_rtp_default(&policy.rtp);
- crypto_policy_set_rtcp_default(&policy.rtcp);
- break;
- case sec_serv_conf:
- crypto_policy_set_aes_cm_128_null_auth(&policy.rtp);
- crypto_policy_set_rtcp_default(&policy.rtcp);
- break;
- case sec_serv_auth:
- crypto_policy_set_null_cipher_hmac_sha1_80(&policy.rtp);
- crypto_policy_set_rtcp_default(&policy.rtcp);
- break;
- default:
- printf("error: unknown security service requested\n");
- return -1;
- }
- policy.ssrc.type = ssrc_specific;
- policy.ssrc.value = ssrc;
- policy.key = (uint8_t *) key;
- policy.next = NULL;
- policy.window_size = 128;
- policy.allow_repeat_tx = 0;
- policy.rtp.sec_serv = sec_servs;
- policy.rtcp.sec_serv = sec_serv_none; /* we don't do RTCP anyway */
-
- /*
- * read key from hexadecimal on command line into an octet string
- */
- len = hex_string_to_octet_string(key, input_key, MASTER_KEY_LEN*2);
-
- /* check that hex string is the right length */
- if (len < MASTER_KEY_LEN*2) {
- fprintf(stderr,
- "error: too few digits in key/salt "
- "(should be %d hexadecimal digits, found %d)\n",
- MASTER_KEY_LEN*2, len);
- exit(1);
- }
- if (strlen(input_key) > MASTER_KEY_LEN*2) {
- fprintf(stderr,
- "error: too many digits in key/salt "
- "(should be %d hexadecimal digits, found %u)\n",
- MASTER_KEY_LEN*2, (unsigned)strlen(input_key));
- exit(1);
- }
-
- printf("set master key/salt to %s/", octet_string_hex_string(key, 16));
- printf("%s\n", octet_string_hex_string(key+16, 14));
-
- } else {
- /*
- * we're not providing security services, so set the policy to the
- * null policy
- *
- * Note that this policy does not conform to the SRTP
- * specification, since RTCP authentication is required. However,
- * the effect of this policy is to turn off SRTP, so that this
- * application is now a vanilla-flavored RTP application.
- */
- policy.key = (uint8_t *)key;
- policy.ssrc.type = ssrc_specific;
- policy.ssrc.value = ssrc;
- policy.rtp.cipher_type = NULL_CIPHER;
- policy.rtp.cipher_key_len = 0;
- policy.rtp.auth_type = NULL_AUTH;
- policy.rtp.auth_key_len = 0;
- policy.rtp.auth_tag_len = 0;
- policy.rtp.sec_serv = sec_serv_none;
- policy.rtcp.cipher_type = NULL_CIPHER;
- policy.rtcp.cipher_key_len = 0;
- policy.rtcp.auth_type = NULL_AUTH;
- policy.rtcp.auth_key_len = 0;
- policy.rtcp.auth_tag_len = 0;
- policy.rtcp.sec_serv = sec_serv_none;
- policy.window_size = 0;
- policy.allow_repeat_tx = 0;
- policy.next = NULL;
- }
-
- if (prog_type == sender) {
-
-#if BEW
- /* bind to local socket (to match crypto policy, if need be) */
- memset(&local, 0, sizeof(struct sockaddr_in));
- local.sin_addr.s_addr = htonl(INADDR_ANY);
- local.sin_port = htons(port);
- ret = bind(sock, (struct sockaddr *) &local, sizeof(struct sockaddr_in));
- if (ret < 0) {
- fprintf(stderr, "%s: bind failed\n", argv[0]);
- perror("");
- exit(1);
- }
-#endif /* BEW */
-
- /* initialize sender's rtp and srtp contexts */
- snd = rtp_sender_alloc();
- if (snd == NULL) {
- fprintf(stderr, "error: malloc() failed\n");
- exit(1);
- }
- rtp_sender_init(snd, sock, name, ssrc);
- status = rtp_sender_init_srtp(snd, &policy);
- if (status) {
- fprintf(stderr,
- "error: srtp_create() failed with code %d\n",
- status);
- exit(1);
- }
-
- /* open dictionary */
- dict = fopen (dictfile, "r");
- if (dict == NULL) {
- fprintf(stderr, "%s: couldn't open file %s\n", argv[0], dictfile);
- if (ADDR_IS_MULTICAST(rcvr_addr.s_addr)) {
- leave_group(sock, mreq, argv[0]);
- }
- exit(1);
- }
-
- /* read words from dictionary, then send them off */
- while (fgets(word, MAX_WORD_LEN, dict) != NULL) {
- len = strlen(word) + 1; /* plus one for null */
-
- if (len > MAX_WORD_LEN)
- printf("error: word %s too large to send\n", word);
- else {
- rtp_sendto(snd, word, len);
- printf("sending word: %s", word);
- }
- usleep(USEC_RATE);
- }
-
- } else { /* prog_type == receiver */
- rtp_receiver_t rcvr;
-
- if (bind(sock, (struct sockaddr *)&name, sizeof(name)) < 0) {
- close(sock);
- fprintf(stderr, "%s: socket bind error\n", argv[0]);
- perror(NULL);
- if (ADDR_IS_MULTICAST(rcvr_addr.s_addr)) {
- leave_group(sock, mreq, argv[0]);
- }
- exit(1);
- }
-
- rcvr = rtp_receiver_alloc();
- if (rcvr == NULL) {
- fprintf(stderr, "error: malloc() failed\n");
- exit(1);
- }
- rtp_receiver_init(rcvr, sock, name, ssrc);
- status = rtp_receiver_init_srtp(rcvr, &policy);
- if (status) {
- fprintf(stderr,
- "error: srtp_create() failed with code %d\n",
- status);
- exit(1);
- }
-
- /* get next word and loop */
- while (1) {
- len = MAX_WORD_LEN;
- if (rtp_recvfrom(rcvr, word, &len) > -1)
- printf("\tword: %s", word);
- }
-
- }
-
- if (ADDR_IS_MULTICAST(rcvr_addr.s_addr)) {
- leave_group(sock, mreq, argv[0]);
- }
-
-#ifdef RTPW_USE_WINSOCK2
- WSACleanup();
-#endif
-
- return 0;
-}
-
-
-void
-usage(char *string) {
-
- printf("usage: %s [-d <debug>]* [-k <key> [-a][-e]] "
- "[-s | -r] dest_ip dest_port\n"
- "or %s -l\n"
- "where -a use message authentication\n"
- " -e use encryption\n"
- " -k <key> sets the srtp master key\n"
- " -s act as rtp sender\n"
- " -r act as rtp receiver\n"
- " -l list debug modules\n"
- " -d <debug> turn on debugging for module <debug>\n",
- string, string);
- exit(1);
-
-}
-
-
-void
-leave_group(int sock, struct ip_mreq mreq, char *name) {
- int ret;
-
- ret = setsockopt(sock, IPPROTO_IP, IP_DROP_MEMBERSHIP, (void*)&mreq,
- sizeof(mreq));
- if (ret < 0) {
- fprintf(stderr, "%s: Failed to leave multicast group", name);
- perror("");
- }
-}
-
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