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-rw-r--r--dund/main.c635
1 files changed, 0 insertions, 635 deletions
diff --git a/dund/main.c b/dund/main.c
deleted file mode 100644
index b14adce0..00000000
--- a/dund/main.c
+++ /dev/null
@@ -1,635 +0,0 @@
-/*
- *
- * BlueZ - Bluetooth protocol stack for Linux
- *
- * Copyright (C) 2002-2003 Maxim Krasnyansky <maxk@qualcomm.com>
- * Copyright (C) 2002-2008 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 <fcntl.h>
-#include <unistd.h>
-#include <stdlib.h>
-#include <string.h>
-#include <syslog.h>
-#include <signal.h>
-#include <getopt.h>
-
-#include <sys/socket.h>
-
-#include <bluetooth/bluetooth.h>
-#include <bluetooth/hci.h>
-#include <bluetooth/hci_lib.h>
-#include <bluetooth/rfcomm.h>
-
-#include "dund.h"
-#include "lib.h"
-
-volatile sig_atomic_t __io_canceled;
-
-/* MS dialup networking support (i.e. CLIENT / CLIENTSERVER thing) */
-static int msdun = 0;
-
-static char *pppd = "/usr/sbin/pppd";
-static char *pppd_opts[DUN_MAX_PPP_OPTS] =
- {
- /* First 3 are reserved */
- "", "", "",
- "noauth",
- "noipdefault",
- NULL
- };
-
-static int detach = 1;
-static int persist;
-static int use_sdp = 1;
-static int auth;
-static int encrypt;
-static int secure;
-static int master;
-static int type = LANACCESS;
-static int search_duration = 10;
-static uint use_cache;
-
-static int channel;
-
-static struct {
- uint valid;
- char dst[40];
- bdaddr_t bdaddr;
- int channel;
-} cache;
-
-static bdaddr_t src_addr = *BDADDR_ANY;
-static int src_dev = -1;
-
-volatile int terminate;
-
-enum {
- NONE,
- SHOW,
- LISTEN,
- CONNECT,
- KILL
-} modes;
-
-static int create_connection(char *dst, bdaddr_t *bdaddr, int mrouter);
-
-static int do_listen(void)
-{
- struct sockaddr_rc sa;
- int sk, lm;
-
- if (type == MROUTER) {
- if (!cache.valid)
- return -1;
-
- if (create_connection(cache.dst, &cache.bdaddr, type) < 0) {
- syslog(LOG_ERR, "Cannot connect to mRouter device. %s(%d)",
- strerror(errno), errno);
- return -1;
- }
- }
-
- if (!channel)
- channel = DUN_DEFAULT_CHANNEL;
-
- if (use_sdp)
- dun_sdp_register(&src_addr, channel, type);
-
- if (type == MROUTER)
- syslog(LOG_INFO, "Waiting for mRouter callback on channel %d", channel);
-
- /* Create RFCOMM socket */
- sk = socket(AF_BLUETOOTH, SOCK_STREAM, BTPROTO_RFCOMM);
- if (sk < 0) {
- syslog(LOG_ERR, "Cannot create RFCOMM socket. %s(%d)",
- strerror(errno), errno);
- return -1;
- }
-
- sa.rc_family = AF_BLUETOOTH;
- sa.rc_channel = channel;
- sa.rc_bdaddr = src_addr;
-
- if (bind(sk, (struct sockaddr *) &sa, sizeof(sa))) {
- syslog(LOG_ERR, "Bind failed. %s(%d)", strerror(errno), errno);
- return -1;
- }
-
- /* Set link mode */
- lm = 0;
- if (master)
- lm |= RFCOMM_LM_MASTER;
- if (auth)
- lm |= RFCOMM_LM_AUTH;
- if (encrypt)
- lm |= RFCOMM_LM_ENCRYPT;
- if (secure)
- lm |= RFCOMM_LM_SECURE;
-
- if (lm && setsockopt(sk, SOL_RFCOMM, RFCOMM_LM, &lm, sizeof(lm)) < 0) {
- syslog(LOG_ERR, "Failed to set link mode. %s(%d)", strerror(errno), errno);
- return -1;
- }
-
- listen(sk, 10);
-
- while (!terminate) {
- socklen_t alen = sizeof(sa);
- int nsk;
- char ba[40];
- char ch[10];
-
- nsk = accept(sk, (struct sockaddr *) &sa, &alen);
- if (nsk < 0) {
- syslog(LOG_ERR, "Accept failed. %s(%d)", strerror(errno), errno);
- continue;
- }
-
- switch (fork()) {
- case 0:
- break;
- case -1:
- syslog(LOG_ERR, "Fork failed. %s(%d)", strerror(errno), errno);
- default:
- close(nsk);
- if (type == MROUTER) {
- close(sk);
- terminate = 1;
- }
- continue;
- }
-
- close(sk);
-
- if (msdun && ms_dun(nsk, 1, msdun) < 0) {
- syslog(LOG_ERR, "MSDUN failed. %s(%d)", strerror(errno), errno);
- exit(0);
- }
-
- ba2str(&sa.rc_bdaddr, ba);
- sprintf(ch, "%d", channel);
-
- /* Setup environment */
- setenv("DUN_BDADDR", ba, 1);
- setenv("DUN_CHANNEL", ch, 1);
-
- if (!dun_open_connection(nsk, pppd, pppd_opts, 0))
- syslog(LOG_INFO, "New connection from %s", ba);
-
- close(nsk);
- exit(0);
- }
-
- if (use_sdp)
- dun_sdp_unregister();
- return 0;
-}
-
-/* Connect and initiate RFCOMM session
- * Returns:
- * -1 - critical error (exit persist mode)
- * 1 - non critical error
- * 0 - success
- */
-static int create_connection(char *dst, bdaddr_t *bdaddr, int mrouter)
-{
- struct sockaddr_rc sa;
- int sk, err = 0, ch;
-
- if (use_cache && cache.valid && cache.channel) {
- /* Use cached channel */
- ch = cache.channel;
-
- } else if (!channel) {
- syslog(LOG_INFO, "Searching for %s on %s", mrouter ? "SP" : "LAP", dst);
-
- if (dun_sdp_search(&src_addr, bdaddr, &ch, mrouter) <= 0)
- return 0;
- } else
- ch = channel;
-
- syslog(LOG_INFO, "Connecting to %s channel %d", dst, ch);
-
- sk = socket(AF_BLUETOOTH, SOCK_STREAM, BTPROTO_RFCOMM);
- if (sk < 0) {
- syslog(LOG_ERR, "Cannot create RFCOMM socket. %s(%d)",
- strerror(errno), errno);
- return -1;
- }
-
- sa.rc_family = AF_BLUETOOTH;
- sa.rc_channel = 0;
- sa.rc_bdaddr = src_addr;
-
- if (bind(sk, (struct sockaddr *) &sa, sizeof(sa)))
- syslog(LOG_ERR, "Bind failed. %s(%d)",
- strerror(errno), errno);
-
- sa.rc_channel = ch;
- sa.rc_bdaddr = *bdaddr;
-
- if (!connect(sk, (struct sockaddr *) &sa, sizeof(sa)) ) {
- if (mrouter) {
- sleep(1);
- close(sk);
- return 0;
- }
-
- syslog(LOG_INFO, "Connection established");
-
- if (msdun && ms_dun(sk, 0, msdun) < 0) {
- syslog(LOG_ERR, "MSDUN failed. %s(%d)", strerror(errno), errno);
- err = 1;
- goto out;
- }
-
- if (!dun_open_connection(sk, pppd, pppd_opts, (persist > 0)))
- err = 0;
- else
- err = 1;
- } else {
- syslog(LOG_ERR, "Connect to %s failed. %s(%d)",
- dst, strerror(errno), errno);
- err = 1;
- }
-
-out:
- if (use_cache) {
- if (!err) {
- /* Succesesful connection, validate cache */
- strcpy(cache.dst, dst);
- bacpy(&cache.bdaddr, bdaddr);
- cache.channel = ch;
- cache.valid = use_cache;
- } else {
- cache.channel = 0;
- cache.valid--;
- }
- }
-
- close(sk);
- return err;
-}
-
-/* Search and connect
- * Returns:
- * -1 - critical error (exit persist mode)
- * 1 - non critical error
- * 0 - success
- */
-static int do_connect(void)
-{
- inquiry_info *ii;
- int reconnect = 0;
- int i, n, r = 0;
-
- do {
- if (reconnect)
- sleep(persist);
- reconnect = 1;
-
- if (cache.valid) {
- /* Use cached bdaddr */
- r = create_connection(cache.dst, &cache.bdaddr, 0);
- if (r < 0) {
- terminate = 1;
- break;
- }
- continue;
- }
-
- syslog(LOG_INFO, "Inquiring");
-
- /* FIXME: Should we use non general LAP here ? */
-
- ii = NULL;
- n = hci_inquiry(src_dev, search_duration, 0, NULL, &ii, 0);
- if (n < 0) {
- syslog(LOG_ERR, "Inquiry failed. %s(%d)", strerror(errno), errno);
- continue;
- }
-
- for (i = 0; i < n; i++) {
- char dst[40];
- ba2str(&ii[i].bdaddr, dst);
-
- r = create_connection(dst, &ii[i].bdaddr, 0);
- if (r < 0) {
- terminate = 1;
- break;
- }
- }
- bt_free(ii);
- } while (!terminate && persist);
-
- return r;
-}
-
-static void do_show(void)
-{
- dun_show_connections();
-}
-
-static void do_kill(char *dst)
-{
- if (dst) {
- bdaddr_t ba;
- str2ba(dst, &ba);
- dun_kill_connection((void *) &ba);
- } else
- dun_kill_all_connections();
-}
-
-void sig_hup(int sig)
-{
- return;
-}
-
-void sig_term(int sig)
-{
- io_cancel();
- terminate = 1;
-}
-
-static struct option main_lopts[] = {
- { "help", 0, 0, 'h' },
- { "listen", 0, 0, 's' },
- { "connect", 1, 0, 'c' },
- { "search", 2, 0, 'Q' },
- { "kill", 1, 0, 'k' },
- { "killall", 0, 0, 'K' },
- { "channel", 1, 0, 'P' },
- { "device", 1, 0, 'i' },
- { "nosdp", 0, 0, 'D' },
- { "list", 0, 0, 'l' },
- { "show", 0, 0, 'l' },
- { "nodetach", 0, 0, 'n' },
- { "persist", 2, 0, 'p' },
- { "auth", 0, 0, 'A' },
- { "encrypt", 0, 0, 'E' },
- { "secure", 0, 0, 'S' },
- { "master", 0, 0, 'M' },
- { "cache", 0, 0, 'C' },
- { "pppd", 1, 0, 'd' },
- { "msdun", 2, 0, 'X' },
- { "activesync", 0, 0, 'a' },
- { "mrouter", 1, 0, 'm' },
- { "dialup", 0, 0, 'u' },
- { 0, 0, 0, 0 }
-};
-
-static char main_sopts[] = "hsc:k:Kr:i:lnp::DQ::AESMP:C::P:Xam:u";
-
-static char main_help[] =
- "Bluetooth LAP (LAN Access over PPP) daemon version " VERSION " \n"
- "Usage:\n"
- "\tdund <options> [pppd options]\n"
- "Options:\n"
- "\t--show --list -l Show active LAP connections\n"
- "\t--listen -s Listen for LAP connections\n"
- "\t--dialup -u Pretend to be a dialup/telephone\n"
- "\t--connect -c <bdaddr> Create LAP connection\n"
- "\t--mrouter -m <bdaddr> Create mRouter connection\n"
- "\t--search -Q[duration] Search and connect\n"
- "\t--kill -k <bdaddr> Kill LAP connection\n"
- "\t--killall -K Kill all LAP connections\n"
- "\t--channel -P <channel> RFCOMM channel\n"
- "\t--device -i <bdaddr> Source bdaddr\n"
- "\t--nosdp -D Disable SDP\n"
- "\t--auth -A Enable authentication\n"
- "\t--encrypt -E Enable encryption\n"
- "\t--secure -S Secure connection\n"
- "\t--master -M Become the master of a piconet\n"
- "\t--nodetach -n Do not become a daemon\n"
- "\t--persist -p[interval] Persist mode\n"
- "\t--pppd -d <pppd> Location of the PPP daemon (pppd)\n"
- "\t--msdun -X[timeo] Enable Microsoft dialup networking support\n"
- "\t--activesync -a Enable Microsoft ActiveSync networking\n"
- "\t--cache -C[valid] Enable address cache\n";
-
-int main(int argc, char *argv[])
-{
- char *dst = NULL, *src = NULL;
- struct sigaction sa;
- int mode = NONE;
- int opt;
-
- while ((opt=getopt_long(argc, argv, main_sopts, main_lopts, NULL)) != -1) {
- switch(opt) {
- case 'l':
- mode = SHOW;
- detach = 0;
- break;
-
- case 's':
- mode = LISTEN;
- type = LANACCESS;
- break;
-
- case 'c':
- mode = CONNECT;
- dst = strdup(optarg);
- break;
-
- case 'Q':
- mode = CONNECT;
- dst = NULL;
- if (optarg)
- search_duration = atoi(optarg);
- break;
-
- case 'k':
- mode = KILL;
- detach = 0;
- dst = strdup(optarg);
- break;
-
- case 'K':
- mode = KILL;
- detach = 0;
- dst = NULL;
- break;
-
- case 'P':
- channel = atoi(optarg);
- break;
-
- case 'i':
- src = strdup(optarg);
- break;
-
- case 'D':
- use_sdp = 0;
- break;
-
- case 'A':
- auth = 1;
- break;
-
- case 'E':
- encrypt = 1;
- break;
-
- case 'S':
- secure = 1;
- break;
-
- case 'M':
- master = 1;
- break;
-
- case 'n':
- detach = 0;
- break;
-
- case 'p':
- if (optarg)
- persist = atoi(optarg);
- else
- persist = 5;
- break;
-
- case 'C':
- if (optarg)
- use_cache = atoi(optarg);
- else
- use_cache = 2;
- break;
-
- case 'd':
- pppd = strdup(optarg);
- break;
-
- case 'X':
- if (optarg)
- msdun = atoi(optarg);
- else
- msdun = 10;
- break;
-
- case 'a':
- msdun = 10;
- type = ACTIVESYNC;
- break;
-
- case 'm':
- mode = LISTEN;
- dst = strdup(optarg);
- type = MROUTER;
- break;
-
- case 'u':
- mode = LISTEN;
- type = DIALUP;
- break;
-
- case 'h':
- default:
- printf(main_help);
- exit(0);
- }
- }
-
- argc -= optind;
- argv += optind;
-
- /* The rest is pppd options */
- if (argc > 0) {
- for (opt = 3; argc && opt < DUN_MAX_PPP_OPTS; argc--, opt++)
- pppd_opts[opt] = *argv++;
- pppd_opts[opt] = NULL;
- }
-
- io_init();
-
- if (dun_init())
- return -1;
-
- /* Check non daemon modes first */
- switch (mode) {
- case SHOW:
- do_show();
- return 0;
-
- case KILL:
- do_kill(dst);
- return 0;
-
- case NONE:
- printf(main_help);
- return 0;
- }
-
- /* Initialize signals */
- memset(&sa, 0, sizeof(sa));
- sa.sa_flags = SA_NOCLDSTOP;
- sa.sa_handler = SIG_IGN;
- sigaction(SIGCHLD, &sa, NULL);
- sigaction(SIGPIPE, &sa, NULL);
-
- sa.sa_handler = sig_term;
- sigaction(SIGTERM, &sa, NULL);
- sigaction(SIGINT, &sa, NULL);
-
- sa.sa_handler = sig_hup;
- sigaction(SIGHUP, &sa, NULL);
-
- if (detach && daemon(0, 0)) {
- perror("Can't start daemon");
- exit(1);
- }
-
- openlog("dund", LOG_PID | LOG_NDELAY | LOG_PERROR, LOG_DAEMON);
- syslog(LOG_INFO, "Bluetooth DUN daemon version %s", VERSION);
-
- if (src) {
- src_dev = hci_devid(src);
- if (src_dev < 0 || hci_devba(src_dev, &src_addr) < 0) {
- syslog(LOG_ERR, "Invalid source. %s(%d)", strerror(errno), errno);
- return -1;
- }
- }
-
- if (dst) {
- strncpy(cache.dst, dst, sizeof(cache.dst) - 1);
- str2ba(dst, &cache.bdaddr);
-
- /* Disable cache invalidation */
- use_cache = cache.valid = ~0;
- }
-
- switch (mode) {
- case CONNECT:
- do_connect();
- break;
-
- case LISTEN:
- do_listen();
- break;
- }
-
- return 0;
-}
generated by cgit (git 2.34.1) at 2025-08-03 19:39:42 +0000