wpa_supplicant: Initial Revision 0.8.X
Based on:
commit 0725cc7b7efc434910e89865c42eda7ce61bbf08
Author: Jouni Malinen <j@w1.fi>
Date: Thu Apr 21 20:41:01 2011 +0300
Enable CONFIG_DRIVER_NL80211=y in the default configuration
nl80211 should be preferred over WEXT with any recent Linux
kernel version.
Change-Id: I26aec5afbbd4f4a1f5fd900912545b6f5050de64
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
diff --git a/hostapd/main.c b/hostapd/main.c
new file mode 100644
index 0000000..7a4cfb0
--- /dev/null
+++ b/hostapd/main.c
@@ -0,0 +1,599 @@
+/*
+ * hostapd / main()
+ * Copyright (c) 2002-2011, Jouni Malinen <j@w1.fi>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Alternatively, this software may be distributed under the terms of BSD
+ * license.
+ *
+ * See README and COPYING for more details.
+ */
+
+#include "utils/includes.h"
+#ifndef CONFIG_NATIVE_WINDOWS
+#include <syslog.h>
+#endif /* CONFIG_NATIVE_WINDOWS */
+
+#include "utils/common.h"
+#include "utils/eloop.h"
+#include "crypto/random.h"
+#include "crypto/tls.h"
+#include "common/version.h"
+#include "drivers/driver.h"
+#include "eap_server/eap.h"
+#include "eap_server/tncs.h"
+#include "ap/hostapd.h"
+#include "ap/ap_config.h"
+#include "config_file.h"
+#include "eap_register.h"
+#include "dump_state.h"
+#include "ctrl_iface.h"
+
+
+extern int wpa_debug_level;
+extern int wpa_debug_show_keys;
+extern int wpa_debug_timestamp;
+
+
+struct hapd_interfaces {
+ size_t count;
+ struct hostapd_iface **iface;
+};
+
+
+static int hostapd_for_each_interface(struct hapd_interfaces *interfaces,
+ int (*cb)(struct hostapd_iface *iface,
+ void *ctx), void *ctx)
+{
+ size_t i;
+ int ret;
+
+ for (i = 0; i < interfaces->count; i++) {
+ ret = cb(interfaces->iface[i], ctx);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+
+
+#ifndef CONFIG_NO_HOSTAPD_LOGGER
+static void hostapd_logger_cb(void *ctx, const u8 *addr, unsigned int module,
+ int level, const char *txt, size_t len)
+{
+ struct hostapd_data *hapd = ctx;
+ char *format, *module_str;
+ int maxlen;
+ int conf_syslog_level, conf_stdout_level;
+ unsigned int conf_syslog, conf_stdout;
+
+ maxlen = len + 100;
+ format = os_malloc(maxlen);
+ if (!format)
+ return;
+
+ if (hapd && hapd->conf) {
+ conf_syslog_level = hapd->conf->logger_syslog_level;
+ conf_stdout_level = hapd->conf->logger_stdout_level;
+ conf_syslog = hapd->conf->logger_syslog;
+ conf_stdout = hapd->conf->logger_stdout;
+ } else {
+ conf_syslog_level = conf_stdout_level = 0;
+ conf_syslog = conf_stdout = (unsigned int) -1;
+ }
+
+ switch (module) {
+ case HOSTAPD_MODULE_IEEE80211:
+ module_str = "IEEE 802.11";
+ break;
+ case HOSTAPD_MODULE_IEEE8021X:
+ module_str = "IEEE 802.1X";
+ break;
+ case HOSTAPD_MODULE_RADIUS:
+ module_str = "RADIUS";
+ break;
+ case HOSTAPD_MODULE_WPA:
+ module_str = "WPA";
+ break;
+ case HOSTAPD_MODULE_DRIVER:
+ module_str = "DRIVER";
+ break;
+ case HOSTAPD_MODULE_IAPP:
+ module_str = "IAPP";
+ break;
+ case HOSTAPD_MODULE_MLME:
+ module_str = "MLME";
+ break;
+ default:
+ module_str = NULL;
+ break;
+ }
+
+ if (hapd && hapd->conf && addr)
+ os_snprintf(format, maxlen, "%s: STA " MACSTR "%s%s: %s",
+ hapd->conf->iface, MAC2STR(addr),
+ module_str ? " " : "", module_str, txt);
+ else if (hapd && hapd->conf)
+ os_snprintf(format, maxlen, "%s:%s%s %s",
+ hapd->conf->iface, module_str ? " " : "",
+ module_str, txt);
+ else if (addr)
+ os_snprintf(format, maxlen, "STA " MACSTR "%s%s: %s",
+ MAC2STR(addr), module_str ? " " : "",
+ module_str, txt);
+ else
+ os_snprintf(format, maxlen, "%s%s%s",
+ module_str, module_str ? ": " : "", txt);
+
+ if ((conf_stdout & module) && level >= conf_stdout_level) {
+ wpa_debug_print_timestamp();
+ printf("%s\n", format);
+ }
+
+#ifndef CONFIG_NATIVE_WINDOWS
+ if ((conf_syslog & module) && level >= conf_syslog_level) {
+ int priority;
+ switch (level) {
+ case HOSTAPD_LEVEL_DEBUG_VERBOSE:
+ case HOSTAPD_LEVEL_DEBUG:
+ priority = LOG_DEBUG;
+ break;
+ case HOSTAPD_LEVEL_INFO:
+ priority = LOG_INFO;
+ break;
+ case HOSTAPD_LEVEL_NOTICE:
+ priority = LOG_NOTICE;
+ break;
+ case HOSTAPD_LEVEL_WARNING:
+ priority = LOG_WARNING;
+ break;
+ default:
+ priority = LOG_INFO;
+ break;
+ }
+ syslog(priority, "%s", format);
+ }
+#endif /* CONFIG_NATIVE_WINDOWS */
+
+ os_free(format);
+}
+#endif /* CONFIG_NO_HOSTAPD_LOGGER */
+
+
+/**
+ * hostapd_init - Allocate and initialize per-interface data
+ * @config_file: Path to the configuration file
+ * Returns: Pointer to the allocated interface data or %NULL on failure
+ *
+ * This function is used to allocate main data structures for per-interface
+ * data. The allocated data buffer will be freed by calling
+ * hostapd_cleanup_iface().
+ */
+static struct hostapd_iface * hostapd_init(const char *config_file)
+{
+ struct hostapd_iface *hapd_iface = NULL;
+ struct hostapd_config *conf = NULL;
+ struct hostapd_data *hapd;
+ size_t i;
+
+ hapd_iface = os_zalloc(sizeof(*hapd_iface));
+ if (hapd_iface == NULL)
+ goto fail;
+
+ hapd_iface->reload_config = hostapd_reload_config;
+ hapd_iface->config_read_cb = hostapd_config_read;
+ hapd_iface->config_fname = os_strdup(config_file);
+ if (hapd_iface->config_fname == NULL)
+ goto fail;
+ hapd_iface->ctrl_iface_init = hostapd_ctrl_iface_init;
+ hapd_iface->ctrl_iface_deinit = hostapd_ctrl_iface_deinit;
+ hapd_iface->for_each_interface = hostapd_for_each_interface;
+
+ conf = hostapd_config_read(hapd_iface->config_fname);
+ if (conf == NULL)
+ goto fail;
+ hapd_iface->conf = conf;
+
+ hapd_iface->num_bss = conf->num_bss;
+ hapd_iface->bss = os_zalloc(conf->num_bss *
+ sizeof(struct hostapd_data *));
+ if (hapd_iface->bss == NULL)
+ goto fail;
+
+ for (i = 0; i < conf->num_bss; i++) {
+ hapd = hapd_iface->bss[i] =
+ hostapd_alloc_bss_data(hapd_iface, conf,
+ &conf->bss[i]);
+ if (hapd == NULL)
+ goto fail;
+ hapd->msg_ctx = hapd;
+ }
+
+ return hapd_iface;
+
+fail:
+ if (conf)
+ hostapd_config_free(conf);
+ if (hapd_iface) {
+ os_free(hapd_iface->config_fname);
+ os_free(hapd_iface->bss);
+ os_free(hapd_iface);
+ }
+ return NULL;
+}
+
+
+static int hostapd_driver_init(struct hostapd_iface *iface)
+{
+ struct wpa_init_params params;
+ size_t i;
+ struct hostapd_data *hapd = iface->bss[0];
+ struct hostapd_bss_config *conf = hapd->conf;
+ u8 *b = conf->bssid;
+ struct wpa_driver_capa capa;
+
+ if (hapd->driver == NULL || hapd->driver->hapd_init == NULL) {
+ wpa_printf(MSG_ERROR, "No hostapd driver wrapper available");
+ return -1;
+ }
+
+ /* Initialize the driver interface */
+ if (!(b[0] | b[1] | b[2] | b[3] | b[4] | b[5]))
+ b = NULL;
+
+ os_memset(¶ms, 0, sizeof(params));
+ params.bssid = b;
+ params.ifname = hapd->conf->iface;
+ params.ssid = (const u8 *) hapd->conf->ssid.ssid;
+ params.ssid_len = hapd->conf->ssid.ssid_len;
+ params.test_socket = hapd->conf->test_socket;
+ params.use_pae_group_addr = hapd->conf->use_pae_group_addr;
+
+ params.num_bridge = hapd->iface->num_bss;
+ params.bridge = os_zalloc(hapd->iface->num_bss * sizeof(char *));
+ if (params.bridge == NULL)
+ return -1;
+ for (i = 0; i < hapd->iface->num_bss; i++) {
+ struct hostapd_data *bss = hapd->iface->bss[i];
+ if (bss->conf->bridge[0])
+ params.bridge[i] = bss->conf->bridge;
+ }
+
+ params.own_addr = hapd->own_addr;
+
+ hapd->drv_priv = hapd->driver->hapd_init(hapd, ¶ms);
+ os_free(params.bridge);
+ if (hapd->drv_priv == NULL) {
+ wpa_printf(MSG_ERROR, "%s driver initialization failed.",
+ hapd->driver->name);
+ hapd->driver = NULL;
+ return -1;
+ }
+
+ if (hapd->driver->get_capa &&
+ hapd->driver->get_capa(hapd->drv_priv, &capa) == 0)
+ iface->drv_flags = capa.flags;
+
+ return 0;
+}
+
+
+static void hostapd_interface_deinit_free(struct hostapd_iface *iface)
+{
+ const struct wpa_driver_ops *driver;
+ void *drv_priv;
+ if (iface == NULL)
+ return;
+ driver = iface->bss[0]->driver;
+ drv_priv = iface->bss[0]->drv_priv;
+ hostapd_interface_deinit(iface);
+ if (driver && driver->hapd_deinit)
+ driver->hapd_deinit(drv_priv);
+ hostapd_interface_free(iface);
+}
+
+
+static struct hostapd_iface *
+hostapd_interface_init(struct hapd_interfaces *interfaces,
+ const char *config_fname, int debug)
+{
+ struct hostapd_iface *iface;
+ int k;
+
+ wpa_printf(MSG_ERROR, "Configuration file: %s", config_fname);
+ iface = hostapd_init(config_fname);
+ if (!iface)
+ return NULL;
+ iface->interfaces = interfaces;
+
+ for (k = 0; k < debug; k++) {
+ if (iface->bss[0]->conf->logger_stdout_level > 0)
+ iface->bss[0]->conf->logger_stdout_level--;
+ }
+
+ if (hostapd_driver_init(iface) ||
+ hostapd_setup_interface(iface)) {
+ hostapd_interface_deinit_free(iface);
+ return NULL;
+ }
+
+ return iface;
+}
+
+
+/**
+ * handle_term - SIGINT and SIGTERM handler to terminate hostapd process
+ */
+static void handle_term(int sig, void *signal_ctx)
+{
+ wpa_printf(MSG_DEBUG, "Signal %d received - terminating", sig);
+ eloop_terminate();
+}
+
+
+#ifndef CONFIG_NATIVE_WINDOWS
+
+static int handle_reload_iface(struct hostapd_iface *iface, void *ctx)
+{
+ if (hostapd_reload_config(iface) < 0) {
+ wpa_printf(MSG_WARNING, "Failed to read new configuration "
+ "file - continuing with old.");
+ }
+ return 0;
+}
+
+
+/**
+ * handle_reload - SIGHUP handler to reload configuration
+ */
+static void handle_reload(int sig, void *signal_ctx)
+{
+ struct hapd_interfaces *interfaces = signal_ctx;
+ wpa_printf(MSG_DEBUG, "Signal %d received - reloading configuration",
+ sig);
+ hostapd_for_each_interface(interfaces, handle_reload_iface, NULL);
+}
+
+
+static void handle_dump_state(int sig, void *signal_ctx)
+{
+#ifdef HOSTAPD_DUMP_STATE
+ struct hapd_interfaces *interfaces = signal_ctx;
+ hostapd_for_each_interface(interfaces, handle_dump_state_iface, NULL);
+#endif /* HOSTAPD_DUMP_STATE */
+}
+#endif /* CONFIG_NATIVE_WINDOWS */
+
+
+static int hostapd_global_init(struct hapd_interfaces *interfaces)
+{
+ hostapd_logger_register_cb(hostapd_logger_cb);
+
+ if (eap_server_register_methods()) {
+ wpa_printf(MSG_ERROR, "Failed to register EAP methods");
+ return -1;
+ }
+
+ if (eloop_init()) {
+ wpa_printf(MSG_ERROR, "Failed to initialize event loop");
+ return -1;
+ }
+
+ random_init();
+
+#ifndef CONFIG_NATIVE_WINDOWS
+ eloop_register_signal(SIGHUP, handle_reload, interfaces);
+ eloop_register_signal(SIGUSR1, handle_dump_state, interfaces);
+#endif /* CONFIG_NATIVE_WINDOWS */
+ eloop_register_signal_terminate(handle_term, interfaces);
+
+#ifndef CONFIG_NATIVE_WINDOWS
+ openlog("hostapd", 0, LOG_DAEMON);
+#endif /* CONFIG_NATIVE_WINDOWS */
+
+ return 0;
+}
+
+
+static void hostapd_global_deinit(const char *pid_file)
+{
+#ifdef EAP_SERVER_TNC
+ tncs_global_deinit();
+#endif /* EAP_SERVER_TNC */
+
+ random_deinit();
+
+ eloop_destroy();
+
+#ifndef CONFIG_NATIVE_WINDOWS
+ closelog();
+#endif /* CONFIG_NATIVE_WINDOWS */
+
+ eap_server_unregister_methods();
+
+ os_daemonize_terminate(pid_file);
+}
+
+
+static int hostapd_global_run(struct hapd_interfaces *ifaces, int daemonize,
+ const char *pid_file)
+{
+#ifdef EAP_SERVER_TNC
+ int tnc = 0;
+ size_t i, k;
+
+ for (i = 0; !tnc && i < ifaces->count; i++) {
+ for (k = 0; k < ifaces->iface[i]->num_bss; k++) {
+ if (ifaces->iface[i]->bss[0]->conf->tnc) {
+ tnc++;
+ break;
+ }
+ }
+ }
+
+ if (tnc && tncs_global_init() < 0) {
+ wpa_printf(MSG_ERROR, "Failed to initialize TNCS");
+ return -1;
+ }
+#endif /* EAP_SERVER_TNC */
+
+ if (daemonize && os_daemonize(pid_file)) {
+ perror("daemon");
+ return -1;
+ }
+
+ eloop_run();
+
+ return 0;
+}
+
+
+static void show_version(void)
+{
+ fprintf(stderr,
+ "hostapd v" VERSION_STR "\n"
+ "User space daemon for IEEE 802.11 AP management,\n"
+ "IEEE 802.1X/WPA/WPA2/EAP/RADIUS Authenticator\n"
+ "Copyright (c) 2002-2011, Jouni Malinen <j@w1.fi> "
+ "and contributors\n");
+}
+
+
+static void usage(void)
+{
+ show_version();
+ fprintf(stderr,
+ "\n"
+ "usage: hostapd [-hdBKtv] [-P <PID file>] "
+ "<configuration file(s)>\n"
+ "\n"
+ "options:\n"
+ " -h show this usage\n"
+ " -d show more debug messages (-dd for even more)\n"
+ " -B run daemon in the background\n"
+ " -P PID file\n"
+ " -K include key data in debug messages\n"
+#ifdef CONFIG_DEBUG_FILE
+ " -f log output to debug file instead of stdout\n"
+#endif /* CONFIG_DEBUG_FILE */
+ " -t include timestamps in some debug messages\n"
+ " -v show hostapd version\n");
+
+ exit(1);
+}
+
+
+static const char * hostapd_msg_ifname_cb(void *ctx)
+{
+ struct hostapd_data *hapd = ctx;
+ if (hapd && hapd->iconf && hapd->iconf->bss)
+ return hapd->iconf->bss->iface;
+ return NULL;
+}
+
+
+int main(int argc, char *argv[])
+{
+ struct hapd_interfaces interfaces;
+ int ret = 1;
+ size_t i;
+ int c, debug = 0, daemonize = 0;
+ char *pid_file = NULL;
+ const char *log_file = NULL;
+
+ if (os_program_init())
+ return -1;
+
+ for (;;) {
+ c = getopt(argc, argv, "Bdf:hKP:tv");
+ if (c < 0)
+ break;
+ switch (c) {
+ case 'h':
+ usage();
+ break;
+ case 'd':
+ debug++;
+ if (wpa_debug_level > 0)
+ wpa_debug_level--;
+ break;
+ case 'B':
+ daemonize++;
+ break;
+ case 'f':
+ log_file = optarg;
+ break;
+ case 'K':
+ wpa_debug_show_keys++;
+ break;
+ case 'P':
+ os_free(pid_file);
+ pid_file = os_rel2abs_path(optarg);
+ break;
+ case 't':
+ wpa_debug_timestamp++;
+ break;
+ case 'v':
+ show_version();
+ exit(1);
+ break;
+
+ default:
+ usage();
+ break;
+ }
+ }
+
+ if (optind == argc)
+ usage();
+
+ wpa_msg_register_ifname_cb(hostapd_msg_ifname_cb);
+
+ if (log_file)
+ wpa_debug_open_file(log_file);
+
+ interfaces.count = argc - optind;
+ interfaces.iface = os_zalloc(interfaces.count *
+ sizeof(struct hostapd_iface *));
+ if (interfaces.iface == NULL) {
+ wpa_printf(MSG_ERROR, "malloc failed");
+ return -1;
+ }
+
+ if (hostapd_global_init(&interfaces))
+ return -1;
+
+ /* Initialize interfaces */
+ for (i = 0; i < interfaces.count; i++) {
+ interfaces.iface[i] = hostapd_interface_init(&interfaces,
+ argv[optind + i],
+ debug);
+ if (!interfaces.iface[i])
+ goto out;
+ }
+
+ if (hostapd_global_run(&interfaces, daemonize, pid_file))
+ goto out;
+
+ ret = 0;
+
+ out:
+ /* Deinitialize all interfaces */
+ for (i = 0; i < interfaces.count; i++)
+ hostapd_interface_deinit_free(interfaces.iface[i]);
+ os_free(interfaces.iface);
+
+ hostapd_global_deinit(pid_file);
+ os_free(pid_file);
+
+ if (log_file)
+ wpa_debug_close_file();
+
+ os_program_deinit();
+
+ return ret;
+}