X-Git-Url: https://tinc-vpn.org/git/browse?a=blobdiff_plain;f=src%2Fsptps_test.c;h=3ec9f984781771cbd7400ebf2c16b550833fde60;hb=f0e7e6b03e34e69cac5b01a2d943ad3b9b59d36c;hp=6f6be4b08ffa9af77058d3c6efd93cc7793d0d17;hpb=d0aa0817d2387e89555ed090d900f61c56b19caa;p=tinc

diff --git a/src/sptps_test.c b/src/sptps_test.c
index 6f6be4b0..3ec9f984 100644
--- a/src/sptps_test.c
+++ b/src/sptps_test.c
@@ -19,6 +19,10 @@
 
 #include "system.h"
 
+#ifdef HAVE_LINUX
+#include <linux/if_tun.h>
+#endif
+
 #include <getopt.h>
 
 #include "crypto.h"
@@ -33,12 +37,17 @@ bool send_meta(void *c, const char *msg , int len) { return false; }
 char *logfilename = NULL;
 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) {
 	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;
@@ -46,14 +55,21 @@ static bool send_data(void *handle, uint8_t type, const char *data, size_t len)
 }
 
 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);
+	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'},
+	{"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}
 };
@@ -61,10 +77,18 @@ 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"
+			"  -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");
 }
@@ -73,11 +97,16 @@ 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:", 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;
@@ -86,10 +115,40 @@ 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 'W': /* replay window size */
+				sptps_replaywin = atoi(optarg);
+				break;
+
+			case 'v': /* be verbose */
+				verbose = true;
+				break;
+
 			case '?': /* wrong options */
 				usage();
 				return 1;
@@ -117,6 +176,25 @@ 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))
@@ -202,32 +280,43 @@ int main(int argc, char *argv[]) {
 		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] == '^')
 				sptps_send_record(&s, SPTPS_HANDSHAKE, NULL, 0);
 			else if(buf[0] == '$') {
@@ -235,7 +324,7 @@ 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;
 		}
 
@@ -249,14 +338,17 @@ int main(int argc, char *argv[]) {
 				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))
+			if(!sptps_receive_data(&s, buf, len) && !datagram)
 				return 1;
 		}
 	}