X-Git-Url: https://tinc-vpn.org/git/browse?p=tinc;a=blobdiff_plain;f=src%2Fsptps_test.c;h=9452ed1e0242685b36fdce31c3c4326d6a364b4c;hp=98da73ef6a75d15546d49b4e54aeab7e5824379f;hb=0c7e0210d900185d4c1a9ffd969dc2a26d9523a9;hpb=d01ab07f78f84d7d30c5788416c8d4ca0e1f74bf diff --git a/src/sptps_test.c b/src/sptps_test.c index 98da73ef..9452ed1e 100644 --- a/src/sptps_test.c +++ b/src/sptps_test.c @@ -1,6 +1,6 @@ /* sptps_test.c -- Simple Peer-to-Peer Security test program - Copyright (C) 2011-2013 Guus Sliepen , + Copyright (C) 2011-2014 Guus Sliepen 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 @@ -19,6 +19,10 @@ #include "system.h" +#ifdef HAVE_LINUX +#include +#endif + #include #include "crypto.h" @@ -31,30 +35,42 @@ bool send_request(void *c, const char *msg, ...) { return false; } struct list_t *connection_list = NULL; bool send_meta(void *c, const char *msg , int len) { return false; } char *logfilename = NULL; +bool do_detach = false; struct timeval now; -ecdsa_t *mykey, *hiskey; +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 char *data, size_t len) { +static bool send_data(void *handle, uint8_t type, const void *data, size_t len) { char hex[len * 2 + 1]; bin2hex(data, hex, len); - fprintf(stderr, "Sending %d bytes of data:\n%s\n", (int)len, hex); + 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 char *data, uint16_t len) { - fprintf(stderr, "Received type %d record of %hu bytes:\n", type, len); - fwrite(data, len, 1, stdout); +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'}, - {"packet-loss", required_argument, NULL, 'l'}, - {"replay-window", required_argument, NULL, 'r'}, + {"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} }; @@ -62,11 +78,18 @@ static struct option const long_options[] = { 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, "Usage: %s [options] my_ed25519_key_file his_ed25519_key_file [host] port\n\n", program_name); fprintf(stderr, "Valid options are:\n" " -d, --datagram Enable datagram mode.\n" - " -l, --packet-loss RATE Fake packet loss of RATE percent.\n" - " -r, --replay-window N Set replay window to N bytes.\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 tinc@tinc-vpn.org.\n"); } @@ -75,11 +98,16 @@ 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, "dl:r:", long_options, &option_index)) != EOF) { + while((r = getopt_long(argc, argv, "dqrtwL:W:v", long_options, &option_index)) != EOF) { switch (r) { case 0: /* long option */ break; @@ -88,14 +116,40 @@ int main(int argc, char *argv[]) { datagram = true; break; - case 'l': /* packet loss rate */ + 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 'r': /* replay window size */ + case 'W': /* replay window size */ sptps_replaywin = atoi(optarg); break; + case 'v': /* be verbose */ + verbose = true; + break; + case '?': /* wrong options */ usage(); return 1; @@ -123,6 +177,25 @@ int main(int argc, char *argv[]) { 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)) @@ -138,13 +211,13 @@ int main(int argc, char *argv[]) { 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)); + fprintf(stderr, "getaddrinfo() failed: %s\n", sockstrerror(sockerrno)); 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)); + fprintf(stderr, "Could not create socket: %s\n", sockstrerror(sockerrno)); return 1; } @@ -153,26 +226,26 @@ int main(int argc, char *argv[]) { if(initiator) { if(connect(sock, ai->ai_addr, ai->ai_addrlen)) { - fprintf(stderr, "Could not connect to peer: %s\n", strerror(errno)); + fprintf(stderr, "Could not connect to peer: %s\n", sockstrerror(sockerrno)); 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)); + fprintf(stderr, "Could not bind socket: %s\n", sockstrerror(sockerrno)); return 1; } if(!datagram) { if(listen(sock, 1)) { - fprintf(stderr, "Could not listen on socket: %s\n", strerror(errno)); + fprintf(stderr, "Could not listen on socket: %s\n", sockstrerror(sockerrno)); return 1; } fprintf(stderr, "Listening...\n"); sock = accept(sock, NULL, NULL); if(sock < 0) { - fprintf(stderr, "Could not accept connection: %s\n", strerror(errno)); + fprintf(stderr, "Could not accept connection: %s\n", sockstrerror(sockerrno)); return 1; } } else { @@ -183,12 +256,12 @@ int main(int argc, char *argv[]) { 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)); + fprintf(stderr, "Could not read from socket: %s\n", sockstrerror(sockerrno)); return 1; } if(connect(sock, &addr, addrlen)) { - fprintf(stderr, "Could not accept connection: %s\n", strerror(errno)); + fprintf(stderr, "Could not accept connection: %s\n", sockstrerror(sockerrno)); return 1; } } @@ -199,41 +272,58 @@ int main(int argc, char *argv[]) { crypto_init(); FILE *fp = fopen(argv[1], "r"); + if(!fp) { + fprintf(stderr, "Could not open %s: %s\n", argv[1], strerror(errno)); + return 1; + } if(!(mykey = ecdsa_read_pem_private_key(fp))) return 1; fclose(fp); fp = fopen(argv[2], "r"); + if(!fp) { + fprintf(stderr, "Could not open %s: %s\n", argv[2], strerror(errno)); + return 1; + } if(!(hiskey = ecdsa_read_pem_public_key(fp))) return 1; fclose(fp); - fprintf(stderr, "Keys loaded\n"); + 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 - FD_SET(0, &fds); + 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(0, &fds)) { - ssize_t len = read(0, buf, sizeof buf); + 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) - break; + if(len == 0) { + if(quit) + break; + readonly = true; + continue; + } if(buf[0] == '#') s.outseqno = atoi(buf + 1); if(buf[0] == '^') @@ -243,29 +333,43 @@ int main(int argc, char *argv[]) { if(len > 1) sptps_send_record(&s, 0, buf, len); } else - if(!sptps_send_record(&s, buf[0] == '!' ? 1 : 0, buf, buf[0] == '\n' ? 0 : buf[0] == '*' ? sizeof buf : len)) + 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)); + fprintf(stderr, "Could not read from socket: %s\n", sockstrerror(sockerrno)); return 1; } if(len == 0) { fprintf(stderr, "Connection terminated by peer.\n"); break; } - char hex[len * 2 + 1]; - bin2hex(buf, hex, len); - fprintf(stderr, "Received %d bytes of data:\n%s\n", (int)len, hex); - if((rand() % 100) < packetloss) { - fprintf(stderr, "Dropped.\n"); + 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; + char *bufp = buf; + while(len) { + size_t done = sptps_receive_data(&s, bufp, len); + if(!done) { + if(!datagram) + return 1; + } else { + break; + } + + bufp += done; + len -= done; + } } }