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bluez/test/l2test.c
Marcel Holtmann 9ec342ce2d Don't use ident 0 for information request
2006-09-24 12:43:54 +00:00

1036 lines
20 KiB
C
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/*
*
* BlueZ - Bluetooth protocol stack for Linux
*
* Copyright (C) 2000-2001 Qualcomm Incorporated
* Copyright (C) 2002-2003 Maxim Krasnyansky <maxk@qualcomm.com>
* Copyright (C) 2002-2006 Marcel Holtmann <marcel@holtmann.org>
*
*
* 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 St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdio.h>
#include <errno.h>
#include <ctype.h>
#include <fcntl.h>
#include <unistd.h>
#include <stdlib.h>
#include <getopt.h>
#include <syslog.h>
#include <signal.h>
#include <sys/time.h>
#include <sys/poll.h>
#include <sys/socket.h>
#include <bluetooth/bluetooth.h>
#include <bluetooth/hci.h>
#include <bluetooth/hci_lib.h>
#include <bluetooth/l2cap.h>
#define NIBBLE_TO_ASCII(c) ((c) < 0x0a ? (c) + 0x30 : (c) + 0x57)
/* Test modes */
enum {
SEND,
RECV,
RECONNECT,
MULTY,
DUMP,
CONNECT,
CRECV,
LSEND,
SENDDUMP,
LSENDDUMP,
INFOREQ
};
static unsigned char *buf;
/* Default mtu */
static int imtu = 672;
static int omtu = 0;
/* Default data size */
static long data_size = -1;
/* Default addr and psm */
static bdaddr_t bdaddr;
static unsigned short psm = 10;
/* Default number of frames to send (-1 = infinite) */
static int num_frames = -1;
/* Default number of consecutive frames before the delay */
static int count = 1;
/* Default delay after sending count number of frames */
static unsigned long delay = 0;
static char *filename = NULL;
static int flowctl = 0;
static int master = 0;
static int auth = 0;
static int encrypt = 0;
static int secure = 0;
static int socktype = SOCK_SEQPACKET;
static int linger = 0;
static int reliable = 0;
static float tv2fl(struct timeval tv)
{
return (float)tv.tv_sec + (float)(tv.tv_usec/1000000.0);
}
static char *ltoh(unsigned long c, char* s)
{
int c1;
c1 = (c >> 28) & 0x0f;
*(s++) = NIBBLE_TO_ASCII (c1);
c1 = (c >> 24) & 0x0f;
*(s++) = NIBBLE_TO_ASCII (c1);
c1 = (c >> 20) & 0x0f;
*(s++) = NIBBLE_TO_ASCII (c1);
c1 = (c >> 16) & 0x0f;
*(s++) = NIBBLE_TO_ASCII (c1);
c1 = (c >> 12) & 0x0f;
*(s++) = NIBBLE_TO_ASCII (c1);
c1 = (c >> 8) & 0x0f;
*(s++) = NIBBLE_TO_ASCII (c1);
c1 = (c >> 4) & 0x0f;
*(s++) = NIBBLE_TO_ASCII (c1);
c1 = c & 0x0f;
*(s++) = NIBBLE_TO_ASCII (c1);
*s = 0;
return s;
}
static char *ctoh(char c, char* s)
{
char c1;
c1 = (c >> 4) & 0x0f;
*(s++) = NIBBLE_TO_ASCII (c1);
c1 = c & 0x0f;
*(s++) = NIBBLE_TO_ASCII (c1);
*s = 0;
return s;
}
static void hexdump(unsigned char *s, unsigned long l)
{
char bfr[80];
char *pb;
unsigned long i, n = 0;
if (l == 0)
return;
while (n < l) {
pb = bfr;
pb = ltoh (n, pb);
*(pb++) = ':';
*(pb++) = ' ';
for (i = 0; i < 16; i++) {
if (n + i >= l) {
*(pb++) = ' ';
*(pb++) = ' ';
} else
pb = ctoh (*(s + i), pb);
*(pb++) = ' ';
}
*(pb++) = ' ';
for (i = 0; i < 16; i++) {
if (n + i >= l)
break;
else
*(pb++) = (isprint (*(s + i)) ? *(s + i) : '.');
}
*pb = 0;
n += 16;
s += 16;
puts(bfr);
}
}
static int do_connect(char *svr)
{
struct sockaddr_l2 addr;
struct l2cap_options opts;
struct l2cap_conninfo conn;
socklen_t optlen;
int sk, opt;
/* Create socket */
sk = socket(PF_BLUETOOTH, socktype, BTPROTO_L2CAP);
if (sk < 0) {
syslog(LOG_ERR, "Can't create socket: %s (%d)",
strerror(errno), errno);
return -1;
}
/* Bind to local address */
memset(&addr, 0, sizeof(addr));
addr.l2_family = AF_BLUETOOTH;
bacpy(&addr.l2_bdaddr, &bdaddr);
if (bind(sk, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
syslog(LOG_ERR, "Can't bind socket: %s (%d)",
strerror(errno), errno);
goto error;
}
/* Get default options */
memset(&opts, 0, sizeof(opts));
optlen = sizeof(opts);
if (getsockopt(sk, SOL_L2CAP, L2CAP_OPTIONS, &opts, &optlen) < 0) {
syslog(LOG_ERR, "Can't get default L2CAP options: %s (%d)",
strerror(errno), errno);
goto error;
}
/* Set new options */
opts.omtu = omtu;
opts.imtu = imtu;
if (flowctl)
opts.mode = 2;
if (setsockopt(sk, SOL_L2CAP, L2CAP_OPTIONS, &opts, sizeof(opts)) < 0) {
syslog(LOG_ERR, "Can't set L2CAP options: %s (%d)",
strerror(errno), errno);
goto error;
}
/* Enable SO_LINGER */
if (linger) {
struct linger l = { .l_onoff = 1, .l_linger = linger };
if (setsockopt(sk, SOL_SOCKET, SO_LINGER, &l, sizeof(l)) < 0) {
syslog(LOG_ERR, "Can't enable SO_LINGER: %s (%d)",
strerror(errno), errno);
return -1;
}
}
/* Set link mode */
opt = 0;
if (reliable)
opt |= L2CAP_LM_RELIABLE;
if (setsockopt(sk, SOL_L2CAP, L2CAP_LM, &opt, sizeof(opt)) < 0) {
syslog(LOG_ERR, "Can't set L2CAP link mode: %s (%d)",
strerror(errno), errno);
goto error;
}
/* Connect to remote device */
memset(&addr, 0, sizeof(addr));
addr.l2_family = AF_BLUETOOTH;
str2ba(svr, &addr.l2_bdaddr);
addr.l2_psm = htobs(psm);
if (connect(sk, (struct sockaddr *) &addr, sizeof(addr)) < 0 ) {
syslog(LOG_ERR, "Can't connect: %s (%d)",
strerror(errno), errno);
goto error;
}
/* Get current options */
memset(&opts, 0, sizeof(opts));
optlen = sizeof(opts);
if (getsockopt(sk, SOL_L2CAP, L2CAP_OPTIONS, &opts, &optlen) < 0) {
syslog(LOG_ERR, "Can't get L2CAP options: %s (%d)",
strerror(errno), errno);
goto error;
}
/* Get connection information */
memset(&conn, 0, sizeof(conn));
optlen = sizeof(conn);
if (getsockopt(sk, SOL_L2CAP, L2CAP_CONNINFO, &conn, &optlen) < 0) {
syslog(LOG_ERR, "Can't get L2CAP connection information: %s (%d)",
strerror(errno), errno);
goto error;
}
syslog(LOG_INFO, "Connected [imtu %d, omtu %d, flush_to %d, "
"mode %d, handle %d, class 0x%02x%02x%02x]",
opts.imtu, opts.omtu, opts.flush_to, opts.mode, conn.hci_handle,
conn.dev_class[2], conn.dev_class[1], conn.dev_class[0]);
if (data_size > opts.omtu)
data_size = opts.omtu;
return sk;
error:
close(sk);
return -1;
}
static void do_listen(void (*handler)(int sk))
{
struct sockaddr_l2 addr;
struct l2cap_options opts;
struct l2cap_conninfo conn;
socklen_t optlen;
int sk, nsk, opt;
char ba[18];
/* Create socket */
sk = socket(PF_BLUETOOTH, socktype, BTPROTO_L2CAP);
if (sk < 0) {
syslog(LOG_ERR, "Can't create socket: %s (%d)",
strerror(errno), errno);
exit(1);
}
/* Bind to local address */
addr.l2_family = AF_BLUETOOTH;
bacpy(&addr.l2_bdaddr, &bdaddr);
addr.l2_psm = htobs(psm);
if (bind(sk, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
syslog(LOG_ERR, "Can't bind socket: %s (%d)",
strerror(errno), errno);
goto error;
}
/* Set link mode */
opt = 0;
if (reliable)
opt |= L2CAP_LM_RELIABLE;
if (master)
opt |= L2CAP_LM_MASTER;
if (auth)
opt |= L2CAP_LM_AUTH;
if (encrypt)
opt |= L2CAP_LM_ENCRYPT;
if (secure)
opt |= L2CAP_LM_SECURE;
if (opt && setsockopt(sk, SOL_L2CAP, L2CAP_LM, &opt, sizeof(opt)) < 0) {
syslog(LOG_ERR, "Can't set L2CAP link mode: %s (%d)",
strerror(errno), errno);
goto error;
}
/* Get default options */
memset(&opts, 0, sizeof(opts));
optlen = sizeof(opts);
if (getsockopt(sk, SOL_L2CAP, L2CAP_OPTIONS, &opts, &optlen) < 0) {
syslog(LOG_ERR, "Can't get default L2CAP options: %s (%d)",
strerror(errno), errno);
goto error;
}
/* Set new options */
opts.imtu = imtu;
if (flowctl)
opts.mode = 2;
if (setsockopt(sk, SOL_L2CAP, L2CAP_OPTIONS, &opts, sizeof(opts)) < 0) {
syslog(LOG_ERR, "Can't set L2CAP options: %s (%d)",
strerror(errno), errno);
goto error;
}
if (socktype == SOCK_DGRAM) {
handler(sk);
return;
}
/* Listen for connections */
if (listen(sk, 10)) {
syslog(LOG_ERR, "Can not listen on the socket: %s (%d)",
strerror(errno), errno);
goto error;
}
syslog(LOG_INFO, "Waiting for connection on psm %d ...", psm);
while(1) {
memset(&addr, 0, sizeof(addr));
optlen = sizeof(addr);
nsk = accept(sk, (struct sockaddr *) &addr, &optlen);
if (nsk < 0) {
syslog(LOG_ERR, "Accept failed: %s (%d)",
strerror(errno), errno);
goto error;
}
if (fork()) {
/* Parent */
close(nsk);
continue;
}
/* Child */
close(sk);
/* Get current options */
memset(&opts, 0, sizeof(opts));
optlen = sizeof(opts);
if (getsockopt(nsk, SOL_L2CAP, L2CAP_OPTIONS, &opts, &optlen) < 0) {
syslog(LOG_ERR, "Can't get L2CAP options: %s (%d)",
strerror(errno), errno);
close(nsk);
goto error;
}
/* Get connection information */
memset(&conn, 0, sizeof(conn));
optlen = sizeof(conn);
if (getsockopt(nsk, SOL_L2CAP, L2CAP_CONNINFO, &conn, &optlen) < 0) {
syslog(LOG_ERR, "Can't get L2CAP connection information: %s (%d)",
strerror(errno), errno);
close(nsk);
goto error;
}
ba2str(&addr.l2_bdaddr, ba);
syslog(LOG_INFO, "Connect from %s [imtu %d, omtu %d, flush_to %d, "
"mode %d, handle %d, class 0x%02x%02x%02x]",
ba, opts.imtu, opts.omtu, opts.flush_to, opts.mode, conn.hci_handle,
conn.dev_class[2], conn.dev_class[1], conn.dev_class[0]);
/* Enable SO_LINGER */
if (linger) {
struct linger l = { .l_onoff = 1, .l_linger = linger };
if (setsockopt(nsk, SOL_SOCKET, SO_LINGER, &l, sizeof(l)) < 0) {
syslog(LOG_ERR, "Can't enable SO_LINGER: %s (%d)",
strerror(errno), errno);
close(nsk);
goto error;
}
}
handler(nsk);
syslog(LOG_INFO, "Disconnect: %m");
exit(0);
}
return;
error:
close(sk);
exit(1);
}
static void dump_mode(int sk)
{
socklen_t optlen;
int opt, len;
syslog(LOG_INFO, "Receiving ...");
while (1) {
fd_set rset;
FD_ZERO(&rset);
FD_SET(sk, &rset);
if (select(sk + 1, &rset, NULL, NULL, NULL) < 0)
return;
if (!FD_ISSET(sk, &rset))
continue;
len = read(sk, buf, data_size);
if (len <= 0) {
if (len < 0) {
if (reliable && (errno == ECOMM)) {
syslog(LOG_INFO, "L2CAP Error ECOMM - clearing error and continuing.");
optlen = sizeof(opt);
if (getsockopt(sk, SOL_SOCKET, SO_ERROR, &opt, &optlen) < 0) {
syslog(LOG_ERR, "Couldn't getsockopt(SO_ERROR): %s (%d)",
strerror(errno), errno);
return;
}
continue;
} else {
syslog(LOG_ERR, "Read error: %s(%d)",
strerror(errno), errno);
}
}
return;
}
syslog(LOG_INFO, "Recevied %d bytes", len);
hexdump(buf, len);
}
}
static void recv_mode(int sk)
{
struct timeval tv_beg, tv_end, tv_diff;
struct pollfd p;
long total;
uint32_t seq;
socklen_t optlen;
int opt;
syslog(LOG_INFO,"Receiving ...");
p.fd = sk;
p.events = POLLIN | POLLERR | POLLHUP;
seq = 0;
while (1) {
gettimeofday(&tv_beg, NULL);
total = 0;
while (total < data_size) {
uint32_t sq;
uint16_t l;
int i, len;
p.revents = 0;
if (poll(&p, 1, -1) <= 0)
return;
if (p.revents & (POLLERR | POLLHUP))
return;
len = recv(sk, buf, data_size, 0);
if (len < 0) {
if (reliable && (errno == ECOMM)) {
syslog(LOG_INFO, "L2CAP Error ECOMM - clearing error and continuing.\n");
optlen = sizeof(opt);
if (getsockopt(sk, SOL_SOCKET, SO_ERROR, &opt, &optlen) < 0) {
syslog(LOG_ERR, "Couldn't getsockopt(SO_ERROR): %s (%d)",
strerror(errno), errno);
return;
}
continue;
} else {
syslog(LOG_ERR, "Read failed: %s (%d)",
strerror(errno), errno);
}
}
if (len < 6)
break;
/* Check sequence */
sq = btohl(*(uint32_t *) buf);
if (seq != sq) {
syslog(LOG_INFO, "seq missmatch: %d -> %d", seq, sq);
seq = sq;
}
seq++;
/* Check length */
l = btohs(*(uint16_t *) (buf + 4));
if (len != l) {
syslog(LOG_INFO, "size missmatch: %d -> %d", len, l);
continue;
}
/* Verify data */
for (i = 6; i < len; i++) {
if (buf[i] != 0x7f)
syslog(LOG_INFO, "data missmatch: byte %d 0x%2.2x", i, buf[i]);
}
total += len;
}
gettimeofday(&tv_end, NULL);
timersub(&tv_end, &tv_beg, &tv_diff);
syslog(LOG_INFO,"%ld bytes in %.2f sec, %.2f kB/s", total,
tv2fl(tv_diff), (float)(total / tv2fl(tv_diff) ) / 1024.0);
}
}
static void do_send(int sk)
{
uint32_t seq;
int i, fd, len;
syslog(LOG_INFO, "Sending ...");
if (filename) {
fd = open(filename, O_RDONLY);
if (fd < 0) {
syslog(LOG_ERR, "Open failed: %s (%d)",
strerror(errno), errno);
exit(1);
}
len = read(fd, buf, data_size);
send(sk, buf, len, 0);
return;
} else {
for (i = 6; i < data_size; i++)
buf[i] = 0x7f;
}
seq = 0;
while ((num_frames == -1) || (num_frames-- > 0)) {
*(uint32_t *) buf = htobl(seq);
*(uint16_t *) (buf + 4) = htobs(data_size);
seq++;
len = send(sk, buf, data_size, 0);
if (len < 0 || len != data_size) {
syslog(LOG_ERR, "Send failed: %s (%d)",
strerror(errno), errno);
exit(1);
}
if (num_frames && delay && count && !(seq % count))
usleep(delay);
}
}
static void send_mode(int sk)
{
do_send(sk);
syslog(LOG_INFO, "Closing channel ...");
if (shutdown(sk, SHUT_RDWR) < 0)
syslog(LOG_INFO, "Close failed: %m");
else
syslog(LOG_INFO, "Done");
}
static void senddump_mode(int sk)
{
do_send(sk);
dump_mode(sk);
}
static void reconnect_mode(char *svr)
{
while (1) {
int sk = do_connect(svr);
close(sk);
}
}
static void connect_mode(char *svr)
{
struct pollfd p;
int sk;
if ((sk = do_connect(svr)) < 0)
exit(1);
p.fd = sk;
p.events = POLLERR | POLLHUP;
while (1) {
p.revents = 0;
if (poll(&p, 1, 500))
break;
}
syslog(LOG_INFO, "Disconnected");
close(sk);
}
static void multi_connect_mode(int argc, char *argv[])
{
int i, n, sk;
while (1) {
for (n = 0; n < argc; n++) {
for (i = 0; i < count; i++) {
if (fork())
continue;
/* Child */
sk = do_connect(argv[n]);
usleep(500);
close(sk);
exit(0);
}
}
sleep(4);
}
}
static void info_request(char *svr)
{
unsigned char buf[48];
l2cap_cmd_hdr *cmd = (l2cap_cmd_hdr *) buf;
l2cap_info_req *req = (l2cap_info_req *) (buf + L2CAP_CMD_HDR_SIZE);
l2cap_info_rsp *rsp = (l2cap_info_rsp *) (buf + L2CAP_CMD_HDR_SIZE);
uint16_t mtu;
uint32_t mask;
struct sockaddr_l2 addr;
int sk, err;
sk = socket(PF_BLUETOOTH, SOCK_RAW, BTPROTO_L2CAP);
if (sk < 0) {
perror("Can't create socket");
return;
}
memset(&addr, 0, sizeof(addr));
addr.l2_family = AF_BLUETOOTH;
bacpy(&addr.l2_bdaddr, &bdaddr);
if (bind(sk, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
perror("Can't bind socket");
goto failed;
}
memset(&addr, 0, sizeof(addr));
addr.l2_family = AF_BLUETOOTH;
str2ba(svr, &addr.l2_bdaddr);
if (connect(sk, (struct sockaddr *) &addr, sizeof(addr)) < 0 ) {
perror("Can't connect socket");
goto failed;
}
memset(buf, 0, sizeof(buf));
cmd->code = L2CAP_INFO_REQ;
cmd->ident = 42;
cmd->len = htobs(2);
req->type = htobs(0x0001);
if (send(sk, buf, L2CAP_CMD_HDR_SIZE + L2CAP_INFO_REQ_SIZE, 0) < 0) {
perror("Can't send info request");
goto failed;
}
err = recv(sk, buf, L2CAP_CMD_HDR_SIZE + L2CAP_INFO_RSP_SIZE + 2, 0);
if (err < 0) {
perror("Can't receive info response");
goto failed;
}
switch (btohs(rsp->result)) {
case 0x0000:
mtu = btohs(bt_get_unaligned((uint16_t *) rsp->data));
printf("Connectionless MTU size is %d\n", mtu);
break;
case 0x0001:
printf("Connectionless MTU is not supported\n");
break;
}
memset(buf, 0, sizeof(buf));
cmd->code = L2CAP_INFO_REQ;
cmd->ident = 42;
cmd->len = htobs(2);
req->type = htobs(0x0002);
if (send(sk, buf, L2CAP_CMD_HDR_SIZE + L2CAP_INFO_REQ_SIZE, 0) < 0) {
perror("Can't send info request");
goto failed;
}
err = recv(sk, buf, L2CAP_CMD_HDR_SIZE + L2CAP_INFO_RSP_SIZE + 4, 0);
if (err < 0) {
perror("Can't receive info response");
goto failed;
}
switch (btohs(rsp->result)) {
case 0x0000:
mask = btohl(bt_get_unaligned((uint32_t *) rsp->data));
printf("Extended feature mask is 0x%04x\n", mask);
if (mask & 0x01)
printf(" Flow control mode\n");
if (mask & 0x02)
printf(" Retransmission mode\n");
if (mask & 0x04)
printf(" Bi-directional QoS\n");
break;
case 0x0001:
printf("Extended feature mask is not supported\n");
break;
}
failed:
close(sk);
}
static void usage(void)
{
printf("l2test - L2CAP testing\n"
"Usage:\n");
printf("\tl2test <mode> [options] [bdaddr]\n");
printf("Modes:\n"
"\t-r listen and receive\n"
"\t-w listen and send\n"
"\t-d listen and dump incoming data\n"
"\t-x listen, then send, then dump incoming data\n"
"\t-s connect and send\n"
"\t-u connect and receive\n"
"\t-n connect and be silent\n"
"\t-y connect, then send, then dump incoming data\n"
"\t-c connect, disconnect, connect, ...\n"
"\t-m multiple connects\n"
"\t-z information request\n");
printf("Options:\n"
"\t[-b bytes] [-i device] [-P psm]\n"
"\t[-I imtu] [-O omtu]\n"
"\t[-L seconds] enable SO_LINGER\n"
"\t[-B filename] use data packets from file\n"
"\t[-N num] send num frames (default = infinite)\n"
"\t[-C num] send num frames before delay (default = 1)\n"
"\t[-D milliseconds] delay after sending num frames (default = 0)\n"
"\t[-R] reliable mode\n"
"\t[-G] use connectionless channel (datagram)\n"
"\t[-F] enable flow control\n"
"\t[-A] request authentication\n"
"\t[-E] request encryption\n"
"\t[-S] secure connection\n"
"\t[-M] become master\n");
}
int main(int argc, char *argv[])
{
struct sigaction sa;
int opt, sk, mode = RECV, need_addr = 0;
bacpy(&bdaddr, BDADDR_ANY);
while ((opt=getopt(argc,argv,"rdscuwmnxyzb:i:P:I:O:B:N:L:C:D:RGFAESM")) != EOF) {
switch(opt) {
case 'r':
mode = RECV;
break;
case 's':
mode = SEND;
need_addr = 1;
break;
case 'w':
mode = LSEND;
break;
case 'u':
mode = CRECV;
need_addr = 1;
break;
case 'd':
mode = DUMP;
break;
case 'c':
mode = RECONNECT;
need_addr = 1;
break;
case 'n':
mode = CONNECT;
need_addr = 1;
break;
case 'm':
mode = MULTY;
need_addr = 1;
break;
case 'x':
mode = LSENDDUMP;
break;
case 'y':
mode = SENDDUMP;
break;
case 'z':
mode = INFOREQ;
need_addr = 1;
break;
case 'b':
data_size = atoi(optarg);
break;
case 'i':
if (!strncasecmp(optarg, "hci", 3))
hci_devba(atoi(optarg + 3), &bdaddr);
else
str2ba(optarg, &bdaddr);
break;
case 'P':
psm = atoi(optarg);
break;
case 'I':
imtu = atoi(optarg);
break;
case 'O':
omtu = atoi(optarg);
break;
case 'L':
linger = atoi(optarg);
break;
case 'B':
filename = strdup(optarg);
break;
case 'N':
num_frames = atoi(optarg);
break;
case 'C':
count = atoi(optarg);
break;
case 'D':
delay = atoi(optarg) * 1000;
break;
case 'R':
reliable = 1;
break;
case 'M':
master = 1;
break;
case 'F':
flowctl = 1;
break;
case 'A':
auth = 1;
break;
case 'E':
encrypt = 1;
break;
case 'S':
secure = 1;
break;
case 'G':
socktype = SOCK_DGRAM;
break;
default:
usage();
exit(1);
}
}
if (need_addr && !(argc - optind)) {
usage();
exit(1);
}
if (data_size < 0) {
data_size = 48;
if (imtu > data_size)
data_size = imtu;
if (omtu > data_size)
data_size = omtu;
}
if (!(buf = malloc(data_size))) {
perror("Can't allocate data buffer");
exit(1);
}
memset(&sa, 0, sizeof(sa));
sa.sa_handler = SIG_IGN;
sa.sa_flags = SA_NOCLDSTOP;
sigaction(SIGCHLD, &sa, NULL);
openlog("l2test", LOG_PERROR | LOG_PID, LOG_LOCAL0);
switch (mode) {
case RECV:
do_listen(recv_mode);
break;
case CRECV:
sk = do_connect(argv[optind]);
if (sk < 0)
exit(1);
recv_mode(sk);
break;
case DUMP:
do_listen(dump_mode);
break;
case SEND:
sk = do_connect(argv[optind]);
if (sk < 0)
exit(1);
send_mode(sk);
break;
case LSEND:
do_listen(send_mode);
break;
case RECONNECT:
reconnect_mode(argv[optind]);
break;
case MULTY:
multi_connect_mode(argc - optind, argv + optind);
break;
case CONNECT:
connect_mode(argv[optind]);
break;
case SENDDUMP:
sk = do_connect(argv[optind]);
if (sk < 0)
exit(1);
senddump_mode(sk);
break;
case LSENDDUMP:
do_listen(senddump_mode);
break;
case INFOREQ:
info_request(argv[optind]);
exit(0);
}
syslog(LOG_INFO, "Exit");
closelog();
return 0;
}
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