mirror of
https://github.com/vanhoefm/fragattacks.git
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f43c1ae798
In case of a network interface removal, check if the interface was also the parent interface of the P2P Device dedicated interface. If this is the case, then stop the P2P Device functionality, and remove the P2P Device dedicated interface. In case that the interface is added again and P2P Device functionality can be enabled again, add a new P2P Device dedicated interface and allow further P2P Device functionality. In case that the P2P Device dedicated interface is re-created, the original P2P Device configuration file is needed, so store it in the global params (instead in the wpa_interface configuration). Signed-off-by: Ilan Peer <ilan.peer@intel.com>
346 lines
8.4 KiB
C
346 lines
8.4 KiB
C
/*
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* WPA Supplicant / main() function for UNIX like OSes and MinGW
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* Copyright (c) 2003-2013, Jouni Malinen <j@w1.fi>
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*
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* This software may be distributed under the terms of the BSD license.
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* See README for more details.
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*/
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#include "includes.h"
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#ifdef __linux__
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#include <fcntl.h>
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#endif /* __linux__ */
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#include "common.h"
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#include "wpa_supplicant_i.h"
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#include "driver_i.h"
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#include "p2p_supplicant.h"
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static void usage(void)
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{
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int i;
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printf("%s\n\n%s\n"
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"usage:\n"
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" wpa_supplicant [-BddhKLqq"
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#ifdef CONFIG_DEBUG_SYSLOG
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"s"
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#endif /* CONFIG_DEBUG_SYSLOG */
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"t"
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#ifdef CONFIG_DBUS
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"u"
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#endif /* CONFIG_DBUS */
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"vW] [-P<pid file>] "
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"[-g<global ctrl>] \\\n"
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" [-G<group>] \\\n"
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" -i<ifname> -c<config file> [-C<ctrl>] [-D<driver>] "
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"[-p<driver_param>] \\\n"
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" [-b<br_ifname>] [-e<entropy file>]"
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#ifdef CONFIG_DEBUG_FILE
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" [-f<debug file>]"
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#endif /* CONFIG_DEBUG_FILE */
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" \\\n"
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" [-o<override driver>] [-O<override ctrl>] \\\n"
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" [-N -i<ifname> -c<conf> [-C<ctrl>] "
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"[-D<driver>] \\\n"
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#ifdef CONFIG_P2P
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" [-m<P2P Device config file>] \\\n"
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#endif /* CONFIG_P2P */
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" [-p<driver_param>] [-b<br_ifname>] [-I<config file>] "
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"...]\n"
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"\n"
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"drivers:\n",
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wpa_supplicant_version, wpa_supplicant_license);
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for (i = 0; wpa_drivers[i]; i++) {
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printf(" %s = %s\n",
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wpa_drivers[i]->name,
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wpa_drivers[i]->desc);
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}
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#ifndef CONFIG_NO_STDOUT_DEBUG
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printf("options:\n"
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" -b = optional bridge interface name\n"
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" -B = run daemon in the background\n"
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" -c = Configuration file\n"
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" -C = ctrl_interface parameter (only used if -c is not)\n"
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" -i = interface name\n"
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" -I = additional configuration file\n"
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" -d = increase debugging verbosity (-dd even more)\n"
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" -D = driver name (can be multiple drivers: nl80211,wext)\n"
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" -e = entropy file\n");
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#ifdef CONFIG_DEBUG_FILE
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printf(" -f = log output to debug file instead of stdout\n");
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#endif /* CONFIG_DEBUG_FILE */
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printf(" -g = global ctrl_interface\n"
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" -G = global ctrl_interface group\n"
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" -K = include keys (passwords, etc.) in debug output\n");
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#ifdef CONFIG_DEBUG_SYSLOG
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printf(" -s = log output to syslog instead of stdout\n");
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#endif /* CONFIG_DEBUG_SYSLOG */
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#ifdef CONFIG_DEBUG_LINUX_TRACING
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printf(" -T = record to Linux tracing in addition to logging\n");
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printf(" (records all messages regardless of debug verbosity)\n");
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#endif /* CONFIG_DEBUG_LINUX_TRACING */
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printf(" -t = include timestamp in debug messages\n"
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" -h = show this help text\n"
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" -L = show license (BSD)\n"
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" -o = override driver parameter for new interfaces\n"
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" -O = override ctrl_interface parameter for new interfaces\n"
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" -p = driver parameters\n"
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" -P = PID file\n"
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" -q = decrease debugging verbosity (-qq even less)\n");
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#ifdef CONFIG_DBUS
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printf(" -u = enable DBus control interface\n");
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#endif /* CONFIG_DBUS */
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printf(" -v = show version\n"
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" -W = wait for a control interface monitor before starting\n"
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#ifdef CONFIG_P2P
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" -m = Configuration file for the P2P Device interface\n"
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#endif /* CONFIG_P2P */
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" -N = start describing new interface\n");
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printf("example:\n"
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" wpa_supplicant -D%s -iwlan0 -c/etc/wpa_supplicant.conf\n",
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wpa_drivers[0] ? wpa_drivers[0]->name : "nl80211");
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#endif /* CONFIG_NO_STDOUT_DEBUG */
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}
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static void license(void)
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{
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#ifndef CONFIG_NO_STDOUT_DEBUG
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printf("%s\n\n%s%s%s%s%s\n",
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wpa_supplicant_version,
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wpa_supplicant_full_license1,
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wpa_supplicant_full_license2,
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wpa_supplicant_full_license3,
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wpa_supplicant_full_license4,
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wpa_supplicant_full_license5);
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#endif /* CONFIG_NO_STDOUT_DEBUG */
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}
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static void wpa_supplicant_fd_workaround(int start)
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{
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#ifdef __linux__
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static int fd[3] = { -1, -1, -1 };
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int i;
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/* When started from pcmcia-cs scripts, wpa_supplicant might start with
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* fd 0, 1, and 2 closed. This will cause some issues because many
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* places in wpa_supplicant are still printing out to stdout. As a
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* workaround, make sure that fd's 0, 1, and 2 are not used for other
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* sockets. */
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if (start) {
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for (i = 0; i < 3; i++) {
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fd[i] = open("/dev/null", O_RDWR);
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if (fd[i] > 2) {
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close(fd[i]);
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fd[i] = -1;
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break;
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}
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}
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} else {
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for (i = 0; i < 3; i++) {
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if (fd[i] >= 0) {
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close(fd[i]);
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fd[i] = -1;
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}
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}
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}
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#endif /* __linux__ */
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}
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int main(int argc, char *argv[])
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{
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int c, i;
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struct wpa_interface *ifaces, *iface;
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int iface_count, exitcode = -1;
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struct wpa_params params;
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struct wpa_global *global;
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if (os_program_init())
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return -1;
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os_memset(¶ms, 0, sizeof(params));
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params.wpa_debug_level = MSG_INFO;
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iface = ifaces = os_zalloc(sizeof(struct wpa_interface));
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if (ifaces == NULL)
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return -1;
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iface_count = 1;
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wpa_supplicant_fd_workaround(1);
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for (;;) {
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c = getopt(argc, argv,
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"b:Bc:C:D:de:f:g:G:hi:I:KLm:No:O:p:P:qsTtuvW");
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if (c < 0)
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break;
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switch (c) {
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case 'b':
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iface->bridge_ifname = optarg;
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break;
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case 'B':
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params.daemonize++;
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break;
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case 'c':
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iface->confname = optarg;
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break;
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case 'C':
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iface->ctrl_interface = optarg;
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break;
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case 'D':
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iface->driver = optarg;
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break;
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case 'd':
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#ifdef CONFIG_NO_STDOUT_DEBUG
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printf("Debugging disabled with "
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"CONFIG_NO_STDOUT_DEBUG=y build time "
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"option.\n");
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goto out;
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#else /* CONFIG_NO_STDOUT_DEBUG */
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params.wpa_debug_level--;
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break;
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#endif /* CONFIG_NO_STDOUT_DEBUG */
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case 'e':
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params.entropy_file = optarg;
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break;
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#ifdef CONFIG_DEBUG_FILE
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case 'f':
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params.wpa_debug_file_path = optarg;
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break;
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#endif /* CONFIG_DEBUG_FILE */
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case 'g':
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params.ctrl_interface = optarg;
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break;
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case 'G':
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params.ctrl_interface_group = optarg;
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break;
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case 'h':
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usage();
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exitcode = 0;
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goto out;
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case 'i':
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iface->ifname = optarg;
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break;
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case 'I':
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iface->confanother = optarg;
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break;
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case 'K':
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params.wpa_debug_show_keys++;
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break;
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case 'L':
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license();
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exitcode = 0;
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goto out;
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#ifdef CONFIG_P2P
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case 'm':
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params.conf_p2p_dev = optarg;
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break;
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#endif /* CONFIG_P2P */
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case 'o':
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params.override_driver = optarg;
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break;
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case 'O':
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params.override_ctrl_interface = optarg;
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break;
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case 'p':
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iface->driver_param = optarg;
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break;
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case 'P':
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os_free(params.pid_file);
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params.pid_file = os_rel2abs_path(optarg);
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break;
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case 'q':
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params.wpa_debug_level++;
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break;
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#ifdef CONFIG_DEBUG_SYSLOG
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case 's':
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params.wpa_debug_syslog++;
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break;
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#endif /* CONFIG_DEBUG_SYSLOG */
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#ifdef CONFIG_DEBUG_LINUX_TRACING
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case 'T':
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params.wpa_debug_tracing++;
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break;
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#endif /* CONFIG_DEBUG_LINUX_TRACING */
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case 't':
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params.wpa_debug_timestamp++;
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break;
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#ifdef CONFIG_DBUS
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case 'u':
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params.dbus_ctrl_interface = 1;
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break;
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#endif /* CONFIG_DBUS */
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case 'v':
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printf("%s\n", wpa_supplicant_version);
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exitcode = 0;
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goto out;
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case 'W':
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params.wait_for_monitor++;
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break;
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case 'N':
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iface_count++;
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iface = os_realloc_array(ifaces, iface_count,
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sizeof(struct wpa_interface));
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if (iface == NULL)
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goto out;
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ifaces = iface;
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iface = &ifaces[iface_count - 1];
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os_memset(iface, 0, sizeof(*iface));
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break;
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default:
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usage();
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exitcode = 0;
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goto out;
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}
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}
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exitcode = 0;
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global = wpa_supplicant_init(¶ms);
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if (global == NULL) {
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wpa_printf(MSG_ERROR, "Failed to initialize wpa_supplicant");
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exitcode = -1;
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goto out;
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} else {
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wpa_printf(MSG_INFO, "Successfully initialized "
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"wpa_supplicant");
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}
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for (i = 0; exitcode == 0 && i < iface_count; i++) {
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struct wpa_supplicant *wpa_s;
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if ((ifaces[i].confname == NULL &&
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ifaces[i].ctrl_interface == NULL) ||
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ifaces[i].ifname == NULL) {
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if (iface_count == 1 && (params.ctrl_interface ||
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params.dbus_ctrl_interface))
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break;
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usage();
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exitcode = -1;
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break;
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}
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wpa_s = wpa_supplicant_add_iface(global, &ifaces[i], NULL);
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if (wpa_s == NULL) {
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exitcode = -1;
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break;
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}
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}
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if (exitcode == 0)
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exitcode = wpa_supplicant_run(global);
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wpa_supplicant_deinit(global);
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out:
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wpa_supplicant_fd_workaround(0);
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os_free(ifaces);
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os_free(params.pid_file);
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os_program_deinit();
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return exitcode;
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}
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