#include "utils.h"
// Symbols necessary to link with logger.o
-bool send_request(void *c, const char *msg, ...) { return false; }
+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; }
+bool send_meta(void *c, const char *msg, int len) {
+ return false;
+}
char *logfilename = NULL;
bool do_detach = false;
struct timeval now;
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)
+
+ 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)
+
+ 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)
+ if(verbose) {
fprintf(stderr, "Received type %d record of %u bytes:\n", type, len);
- if(!writeonly)
+ }
+
+ if(!writeonly) {
write(out, data, len);
+ }
+
return true;
}
static void usage() {
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"
- " -q, --quit Quit when EOF occurs on stdin.\n"
- " -r, --readonly Only send data from the socket to stdout.\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"
+ " -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"
- " -s, --special Enable special handling of lines starting with #, ^ and $.\n"
- " -v, --verbose Display debug messages.\n"
- " -4 Use IPv4.\n"
- " -6 Use IPv6.\n"
- "\n");
+ " -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"
+ " -s, --special Enable special handling of lines starting with #, ^ and $.\n"
+ " -v, --verbose Display debug messages.\n"
+ " -4 Use IPv4.\n"
+ " -6 Use IPv6.\n"
+ "\n");
fprintf(stderr, "Report bugs to tinc@tinc-vpn.org.\n");
}
bool quit = false;
while((r = getopt_long(argc, argv, "dqrstwL:W:v46", long_options, &option_index)) != EOF) {
- switch (r) {
- case 0: /* long option */
- break;
+ switch(r) {
+ case 0: /* long option */
+ break;
- case 'd': /* datagram mode */
- datagram = true;
- break;
+ case 'd': /* datagram mode */
+ datagram = true;
+ break;
- case 'q': /* close connection on EOF from stdin */
- quit = true;
- break;
+ case 'q': /* close connection on EOF from stdin */
+ quit = true;
+ break;
- case 'r': /* read only */
- readonly = true;
- break;
+ case 'r': /* read only */
+ readonly = true;
+ break;
- case 't': /* read only */
+ case 't': /* read only */
#ifdef HAVE_LINUX
- tun = true;
+ tun = true;
#else
- fprintf(stderr, "--tun is only supported on Linux.\n");
- usage();
- return 1;
+ fprintf(stderr, "--tun is only supported on Linux.\n");
+ usage();
+ return 1;
#endif
- break;
+ break;
- case 'w': /* write only */
- writeonly = true;
- break;
+ case 'w': /* write only */
+ writeonly = true;
+ break;
- case 'L': /* packet loss rate */
- packetloss = atoi(optarg);
- break;
+ case 'L': /* packet loss rate */
+ packetloss = atoi(optarg);
+ break;
- case 'W': /* replay window size */
- sptps_replaywin = atoi(optarg);
- break;
+ case 'W': /* replay window size */
+ sptps_replaywin = atoi(optarg);
+ break;
- case 'v': /* be verbose */
- verbose = true;
- break;
+ case 'v': /* be verbose */
+ verbose = true;
+ break;
- case 's': /* special character handling */
- special = true;
- break;
+ case 's': /* special character handling */
+ special = true;
+ break;
- case '?': /* wrong options */
- usage();
- return 1;
+ case '?': /* wrong options */
+ usage();
+ return 1;
- case '4': /* IPv4 */
- addressfamily = AF_INET;
- break;
+ case '4': /* IPv4 */
+ addressfamily = AF_INET;
+ break;
- case '6': /* IPv6 */
- addressfamily = AF_INET6;
- break;
+ case '6': /* IPv6 */
+ addressfamily = AF_INET6;
+ break;
- case 1: /* help */
- usage();
- return 0;
+ case 1: /* help */
+ usage();
+ return 0;
- default:
- break;
+ default:
+ break;
}
}
return 1;
}
- if(argc > 4)
+ 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))
+
+ if(WSAStartup(MAKEWORD(2, 2), &wsa_state)) {
return 1;
+ }
+
#endif
struct addrinfo *ai, hint;
}
int sock = socket(ai->ai_family, ai->ai_socktype, ai->ai_protocol);
+
if(sock < 0) {
fprintf(stderr, "Could not create socket: %s\n", sockstrerror(sockerrno));
return 1;
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 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", sockstrerror(sockerrno));
return 1;
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)))
+
+ 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)))
+
+ if(!(hiskey = ecdsa_read_pem_public_key(fp))) {
return 1;
+ }
+
fclose(fp);
- if(verbose)
+ 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))
+
+ if(!sptps_start(&s, &sock, initiator, datagram, mykey, hiskey, "sptps_test", 10, send_data, receive_record)) {
return 1;
+ }
while(true) {
- if(writeonly && readonly)
+ if(writeonly && readonly) {
break;
+ }
char buf[65535] = "";
fd_set fds;
FD_ZERO(&fds);
#ifndef HAVE_MINGW
- if(!readonly && s.instate)
+
+ if(!readonly && s.instate) {
FD_SET(in, &fds);
+ }
+
#endif
FD_SET(sock, &fds);
- if(select(sock + 1, &fds, NULL, NULL, NULL) <= 0)
+
+ 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)
+ if(quit) {
break;
+ }
+
readonly = true;
continue;
}
- if(special && buf[0] == '#')
+
+ if(special && buf[0] == '#') {
s.outseqno = atoi(buf + 1);
- if(special && buf[0] == '^')
+ }
+
+ if(special && buf[0] == '^') {
sptps_send_record(&s, SPTPS_HANDSHAKE, NULL, 0);
- else if(special && buf[0] == '$') {
+ } else if(special && buf[0] == '$') {
sptps_force_kex(&s);
- if(len > 1)
+
+ 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))
+ }
+ } 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", sockstrerror(sockerrno));
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)
+ if(verbose) {
fprintf(stderr, "Dropped.\n");
+ }
+
continue;
}
+
char *bufp = buf;
+
while(len) {
size_t done = sptps_receive_data(&s, bufp, len);
+
if(!done) {
- if(!datagram)
+ if(!datagram) {
return 1;
+ }
} else {
break;
}
}
}
- if(!sptps_stop(&s))
+ if(!sptps_stop(&s)) {
return 1;
+ }
return 0;
}
projects / tinc / blobdiff