+++ /dev/null
-/*
- sptps_test.c -- Simple Peer-to-Peer Security test program
- Copyright (C) 2014 Guus Sliepen <guus@meshlink.io>
-
- 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, write to the Free Software Foundation, Inc.,
- 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-*/
-
-#include "system.h"
-
-#ifdef HAVE_LINUX
-#include <sys/ioctl.h>
-#include <linux/if.h>
-#include <linux/if_tun.h>
-#endif
-
-#include <getopt.h>
-
-#include "crypto.h"
-#include "ecdsa.h"
-#include "sptps.h"
-#include "utils.h"
-
-// Symbols necessary to link with logger.o
-bool send_request(void *c, const char *msg, ...) {
- return false;
-}
-void *mesh;
-void *global_log_cb;
-int global_log_level;
-bool send_meta(void *c, const char *msg, int len) {
- return false;
-}
-char *logfilename = NULL;
-struct timeval now;
-
-static bool verbose;
-static bool readonly;
-static bool writeonly;
-static int in = 0;
-static int out = 1;
-
-static bool send_data(void *handle, uint8_t type, const void *data, size_t len) {
- char hex[len * 2 + 1];
- bin2hex(data, hex, len);
- if(verbose)
- fprintf(stderr, "Sending %d bytes of data:\n%s\n", (int)len, hex);
- const int *sock = handle;
- if(send(*sock, data, len, 0) != len)
- return false;
- return true;
-}
-
-static bool receive_record(void *handle, uint8_t type, const void *data, uint16_t len) {
- if(verbose)
- fprintf(stderr, "Received type %d record of %hu bytes:\n", type, len);
- if(!writeonly)
- write(out, data, len);
- return true;
-}
-
-static struct option const long_options[] = {
- {"datagram", no_argument, NULL, 'd'},
- {"quit", no_argument, NULL, 'q'},
- {"readonly", no_argument, NULL, 'r'},
- {"writeonly", no_argument, NULL, 'w'},
- {"packet-loss", required_argument, NULL, 'L'},
- {"replay-window", required_argument, NULL, 'W'},
- {"verbose", required_argument, NULL, 'v'},
- {"help", no_argument, NULL, 1},
- {NULL, 0, NULL, 0}
-};
-
-const char *program_name;
-
-static void usage() {
- fprintf(stderr, "Usage: %s [options] my_ecdsa_key_file his_ecdsa_key_file [host] port\n\n", program_name);
- fprintf(stderr, "Valid options are:\n"
- " -d, --datagram Enable datagram mode.\n"
- " -q, --quit Quit when EOF occurs on stdin.\n"
- " -r, --readonly Only send data from the socket to stdout.\n"
-#ifdef HAVE_LINUX
- " -t, --tun Use a tun device instead of stdio.\n"
-#endif
- " -w, --writeonly Only send data from stdin to the socket.\n"
- " -L, --packet-loss RATE Fake packet loss of RATE percent.\n"
- " -R, --replay-window N Set replay window to N bytes.\n"
- " -v, --verbose Display debug messages.\n"
- "\n");
- fprintf(stderr, "Report bugs to bugs@meshlink.io.\n");
-}
-
-int main(int argc, char *argv[]) {
- program_name = argv[0];
- bool initiator = false;
- bool datagram = false;
-#ifdef HAVE_LINUX
- bool tun = false;
-#endif
- int packetloss = 0;
- int r;
- int option_index = 0;
- ecdsa_t *mykey = NULL, *hiskey = NULL;
- bool quit = false;
-
- while((r = getopt_long(argc, argv, "dqrtwL:W:v", long_options, &option_index)) != EOF) {
- switch(r) {
- case 0: /* long option */
- break;
-
- case 'd': /* datagram mode */
- datagram = true;
- break;
-
- case 'q': /* close connection on EOF from stdin */
- quit = true;
- break;
-
- case 'r': /* read only */
- readonly = true;
- break;
-
- case 't': /* read only */
-#ifdef HAVE_LINUX
- tun = true;
-#else
- fprintf(stderr, "--tun is only supported on Linux.\n");
- usage();
- return 1;
-#endif
- break;
-
- case 'w': /* write only */
- writeonly = true;
- break;
-
- case 'L': /* packet loss rate */
- packetloss = atoi(optarg);
- break;
-
- case 'W': /* replay window size */
- sptps_replaywin = atoi(optarg);
- break;
-
- case 'v': /* be verbose */
- verbose = true;
- break;
-
- case '?': /* wrong options */
- usage();
- return 1;
-
- case 1: /* help */
- usage();
- return 0;
-
- default:
- break;
- }
- }
-
- argc -= optind - 1;
- argv += optind - 1;
-
- if(argc < 4 || argc > 5) {
- fprintf(stderr, "Wrong number of arguments.\n");
- usage();
- return 1;
- }
-
- if(argc > 4)
- initiator = true;
-
- srand(time(NULL));
-
-#ifdef HAVE_LINUX
- if(tun) {
- in = out = open("/dev/net/tun", O_RDWR | O_NONBLOCK);
- if(in < 0) {
- fprintf(stderr, "Could not open tun device: %s\n", strerror(errno));
- return 1;
- }
- struct ifreq ifr = {
- .ifr_flags = IFF_TUN
- };
- if(ioctl(in, TUNSETIFF, &ifr)) {
- fprintf(stderr, "Could not configure tun interface: %s\n", strerror(errno));
- return 1;
- }
- ifr.ifr_name[IFNAMSIZ - 1] = 0;
- fprintf(stderr, "Using tun interface %s\n", ifr.ifr_name);
- }
-#endif
-
-#ifdef HAVE_MINGW
- static struct WSAData wsa_state;
- if(WSAStartup(MAKEWORD(2, 2), &wsa_state))
- return 1;
-#endif
-
- struct addrinfo *ai, hint;
- memset(&hint, 0, sizeof(hint));
-
- hint.ai_family = AF_UNSPEC;
- hint.ai_socktype = datagram ? SOCK_DGRAM : SOCK_STREAM;
- hint.ai_protocol = datagram ? IPPROTO_UDP : IPPROTO_TCP;
- hint.ai_flags = initiator ? 0 : AI_PASSIVE;
-
- if(getaddrinfo(initiator ? argv[3] : NULL, initiator ? argv[4] : argv[3], &hint, &ai) || !ai) {
- fprintf(stderr, "getaddrinfo() failed: %s\n", strerror(errno));
- return 1;
- }
-
- int sock = socket(ai->ai_family, ai->ai_socktype, ai->ai_protocol);
- if(sock < 0) {
- fprintf(stderr, "Could not create socket: %s\n", strerror(errno));
- return 1;
- }
-
- int one = 1;
- setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (void *)&one, sizeof(one));
-
- if(initiator) {
- if(connect(sock, ai->ai_addr, ai->ai_addrlen)) {
- fprintf(stderr, "Could not connect to peer: %s\n", strerror(errno));
- return 1;
- }
- fprintf(stderr, "Connected\n");
- } else {
- if(bind(sock, ai->ai_addr, ai->ai_addrlen)) {
- fprintf(stderr, "Could not bind socket: %s\n", strerror(errno));
- return 1;
- }
-
- if(!datagram) {
- if(listen(sock, 1)) {
- fprintf(stderr, "Could not listen on socket: %s\n", strerror(errno));
- return 1;
- }
- fprintf(stderr, "Listening...\n");
-
- sock = accept(sock, NULL, NULL);
- if(sock < 0) {
- fprintf(stderr, "Could not accept connection: %s\n", strerror(errno));
- return 1;
- }
- } else {
- fprintf(stderr, "Listening...\n");
-
- char buf[65536];
- struct sockaddr addr;
- socklen_t addrlen = sizeof(addr);
-
- if(recvfrom(sock, buf, sizeof(buf), MSG_PEEK, &addr, &addrlen) <= 0) {
- fprintf(stderr, "Could not read from socket: %s\n", strerror(errno));
- return 1;
- }
-
- if(connect(sock, &addr, addrlen)) {
- fprintf(stderr, "Could not accept connection: %s\n", strerror(errno));
- return 1;
- }
- }
-
- fprintf(stderr, "Connected\n");
- }
-
- crypto_init();
-
- FILE *fp = fopen(argv[1], "r");
- if(!(mykey = ecdsa_read_pem_private_key(fp)))
- return 1;
- fclose(fp);
-
- fp = fopen(argv[2], "r");
- if(!(hiskey = ecdsa_read_pem_public_key(fp)))
- return 1;
- fclose(fp);
-
- if(verbose)
- fprintf(stderr, "Keys loaded\n");
-
- sptps_t s;
- if(!sptps_start(&s, &sock, initiator, datagram, mykey, hiskey, "sptps_test", 10, send_data, receive_record))
- return 1;
-
- while(true) {
- if(writeonly && readonly)
- break;
-
- char buf[65535] = "";
-
- fd_set fds;
- FD_ZERO(&fds);
-#ifndef HAVE_MINGW
- if(!readonly && s.instate)
- FD_SET(in, &fds);
-#endif
- FD_SET(sock, &fds);
- if(select(sock + 1, &fds, NULL, NULL, NULL) <= 0)
- return 1;
-
- if(FD_ISSET(in, &fds)) {
- ssize_t len = read(in, buf, sizeof(buf));
- if(len < 0) {
- fprintf(stderr, "Could not read from stdin: %s\n", strerror(errno));
- return 1;
- }
- if(len == 0) {
- if(quit)
- break;
- readonly = true;
- continue;
- }
- if(buf[0] == '#')
- s.outseqno = atoi(buf + 1);
- if(buf[0] == '^')
- sptps_send_record(&s, SPTPS_HANDSHAKE, NULL, 0);
- else if(buf[0] == '$') {
- sptps_force_kex(&s);
- if(len > 1)
- sptps_send_record(&s, 0, buf, len);
- } else if(!sptps_send_record(&s, buf[0] == '!' ? 1 : 0, buf, (len == 1 && buf[0] == '\n') ? 0 : buf[0] == '*' ? sizeof(buf) : len))
- return 1;
- }
-
- if(FD_ISSET(sock, &fds)) {
- ssize_t len = recv(sock, buf, sizeof(buf), 0);
- if(len < 0) {
- fprintf(stderr, "Could not read from socket: %s\n", strerror(errno));
- return 1;
- }
- if(len == 0) {
- fprintf(stderr, "Connection terminated by peer.\n");
- break;
- }
- if(verbose) {
- char hex[len * 2 + 1];
- bin2hex(buf, hex, len);
- fprintf(stderr, "Received %d bytes of data:\n%s\n", (int)len, hex);
- }
- if(packetloss && (rand() % 100) < packetloss) {
- if(verbose)
- fprintf(stderr, "Dropped.\n");
- continue;
- }
- if(!sptps_receive_data(&s, buf, len) && !datagram)
- return 1;
- }
- }
-
- if(!sptps_stop(&s))
- return 1;
-
- return 0;
-}
projects / meshlink / blobdiff