mirror of
https://git.hardenedbsd.org/hardenedbsd/HardenedBSD.git
synced 2024-12-25 12:02:01 +01:00
f05cddf940
Reviewed by: adrian (driver_bsd + usr.sbin/wpa)
658 lines
15 KiB
C
658 lines
15 KiB
C
/*
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* hostapd / main()
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* Copyright (c) 2002-2011, 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 "utils/includes.h"
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#ifndef CONFIG_NATIVE_WINDOWS
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#include <syslog.h>
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#endif /* CONFIG_NATIVE_WINDOWS */
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#include "utils/common.h"
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#include "utils/eloop.h"
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#include "crypto/random.h"
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#include "crypto/tls.h"
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#include "common/version.h"
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#include "drivers/driver.h"
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#include "eap_server/eap.h"
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#include "eap_server/tncs.h"
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#include "ap/hostapd.h"
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#include "ap/ap_config.h"
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#include "ap/ap_drv_ops.h"
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#include "config_file.h"
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#include "eap_register.h"
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#include "dump_state.h"
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#include "ctrl_iface.h"
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extern int wpa_debug_level;
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extern int wpa_debug_show_keys;
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extern int wpa_debug_timestamp;
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extern struct wpa_driver_ops *wpa_drivers[];
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struct hapd_global {
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void **drv_priv;
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size_t drv_count;
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};
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static struct hapd_global global;
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#ifndef CONFIG_NO_HOSTAPD_LOGGER
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static void hostapd_logger_cb(void *ctx, const u8 *addr, unsigned int module,
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int level, const char *txt, size_t len)
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{
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struct hostapd_data *hapd = ctx;
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char *format, *module_str;
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int maxlen;
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int conf_syslog_level, conf_stdout_level;
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unsigned int conf_syslog, conf_stdout;
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maxlen = len + 100;
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format = os_malloc(maxlen);
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if (!format)
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return;
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if (hapd && hapd->conf) {
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conf_syslog_level = hapd->conf->logger_syslog_level;
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conf_stdout_level = hapd->conf->logger_stdout_level;
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conf_syslog = hapd->conf->logger_syslog;
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conf_stdout = hapd->conf->logger_stdout;
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} else {
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conf_syslog_level = conf_stdout_level = 0;
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conf_syslog = conf_stdout = (unsigned int) -1;
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}
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switch (module) {
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case HOSTAPD_MODULE_IEEE80211:
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module_str = "IEEE 802.11";
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break;
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case HOSTAPD_MODULE_IEEE8021X:
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module_str = "IEEE 802.1X";
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break;
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case HOSTAPD_MODULE_RADIUS:
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module_str = "RADIUS";
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break;
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case HOSTAPD_MODULE_WPA:
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module_str = "WPA";
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break;
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case HOSTAPD_MODULE_DRIVER:
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module_str = "DRIVER";
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break;
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case HOSTAPD_MODULE_IAPP:
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module_str = "IAPP";
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break;
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case HOSTAPD_MODULE_MLME:
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module_str = "MLME";
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break;
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default:
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module_str = NULL;
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break;
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}
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if (hapd && hapd->conf && addr)
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os_snprintf(format, maxlen, "%s: STA " MACSTR "%s%s: %s",
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hapd->conf->iface, MAC2STR(addr),
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module_str ? " " : "", module_str, txt);
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else if (hapd && hapd->conf)
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os_snprintf(format, maxlen, "%s:%s%s %s",
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hapd->conf->iface, module_str ? " " : "",
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module_str, txt);
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else if (addr)
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os_snprintf(format, maxlen, "STA " MACSTR "%s%s: %s",
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MAC2STR(addr), module_str ? " " : "",
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module_str, txt);
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else
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os_snprintf(format, maxlen, "%s%s%s",
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module_str, module_str ? ": " : "", txt);
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if ((conf_stdout & module) && level >= conf_stdout_level) {
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wpa_debug_print_timestamp();
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printf("%s\n", format);
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}
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#ifndef CONFIG_NATIVE_WINDOWS
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if ((conf_syslog & module) && level >= conf_syslog_level) {
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int priority;
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switch (level) {
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case HOSTAPD_LEVEL_DEBUG_VERBOSE:
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case HOSTAPD_LEVEL_DEBUG:
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priority = LOG_DEBUG;
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break;
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case HOSTAPD_LEVEL_INFO:
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priority = LOG_INFO;
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break;
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case HOSTAPD_LEVEL_NOTICE:
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priority = LOG_NOTICE;
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break;
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case HOSTAPD_LEVEL_WARNING:
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priority = LOG_WARNING;
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break;
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default:
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priority = LOG_INFO;
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break;
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}
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syslog(priority, "%s", format);
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}
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#endif /* CONFIG_NATIVE_WINDOWS */
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os_free(format);
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}
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#endif /* CONFIG_NO_HOSTAPD_LOGGER */
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/**
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* hostapd_init - Allocate and initialize per-interface data
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* @config_file: Path to the configuration file
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* Returns: Pointer to the allocated interface data or %NULL on failure
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*
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* This function is used to allocate main data structures for per-interface
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* data. The allocated data buffer will be freed by calling
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* hostapd_cleanup_iface().
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*/
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static struct hostapd_iface * hostapd_init(const char *config_file)
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{
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struct hostapd_iface *hapd_iface = NULL;
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struct hostapd_config *conf = NULL;
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struct hostapd_data *hapd;
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size_t i;
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hapd_iface = os_zalloc(sizeof(*hapd_iface));
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if (hapd_iface == NULL)
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goto fail;
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hapd_iface->config_fname = os_strdup(config_file);
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if (hapd_iface->config_fname == NULL)
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goto fail;
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conf = hostapd_config_read(hapd_iface->config_fname);
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if (conf == NULL)
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goto fail;
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hapd_iface->conf = conf;
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hapd_iface->num_bss = conf->num_bss;
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hapd_iface->bss = os_calloc(conf->num_bss,
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sizeof(struct hostapd_data *));
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if (hapd_iface->bss == NULL)
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goto fail;
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for (i = 0; i < conf->num_bss; i++) {
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hapd = hapd_iface->bss[i] =
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hostapd_alloc_bss_data(hapd_iface, conf,
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&conf->bss[i]);
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if (hapd == NULL)
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goto fail;
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hapd->msg_ctx = hapd;
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}
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return hapd_iface;
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fail:
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if (conf)
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hostapd_config_free(conf);
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if (hapd_iface) {
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os_free(hapd_iface->config_fname);
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os_free(hapd_iface->bss);
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os_free(hapd_iface);
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}
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return NULL;
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}
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static int hostapd_driver_init(struct hostapd_iface *iface)
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{
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struct wpa_init_params params;
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size_t i;
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struct hostapd_data *hapd = iface->bss[0];
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struct hostapd_bss_config *conf = hapd->conf;
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u8 *b = conf->bssid;
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struct wpa_driver_capa capa;
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if (hapd->driver == NULL || hapd->driver->hapd_init == NULL) {
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wpa_printf(MSG_ERROR, "No hostapd driver wrapper available");
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return -1;
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}
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/* Initialize the driver interface */
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if (!(b[0] | b[1] | b[2] | b[3] | b[4] | b[5]))
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b = NULL;
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os_memset(¶ms, 0, sizeof(params));
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for (i = 0; wpa_drivers[i]; i++) {
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if (wpa_drivers[i] != hapd->driver)
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continue;
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if (global.drv_priv[i] == NULL &&
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wpa_drivers[i]->global_init) {
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global.drv_priv[i] = wpa_drivers[i]->global_init();
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if (global.drv_priv[i] == NULL) {
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wpa_printf(MSG_ERROR, "Failed to initialize "
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"driver '%s'",
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wpa_drivers[i]->name);
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return -1;
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}
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}
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params.global_priv = global.drv_priv[i];
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break;
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}
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params.bssid = b;
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params.ifname = hapd->conf->iface;
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params.ssid = hapd->conf->ssid.ssid;
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params.ssid_len = hapd->conf->ssid.ssid_len;
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params.test_socket = hapd->conf->test_socket;
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params.use_pae_group_addr = hapd->conf->use_pae_group_addr;
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params.num_bridge = hapd->iface->num_bss;
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params.bridge = os_calloc(hapd->iface->num_bss, sizeof(char *));
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if (params.bridge == NULL)
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return -1;
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for (i = 0; i < hapd->iface->num_bss; i++) {
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struct hostapd_data *bss = hapd->iface->bss[i];
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if (bss->conf->bridge[0])
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params.bridge[i] = bss->conf->bridge;
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}
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params.own_addr = hapd->own_addr;
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hapd->drv_priv = hapd->driver->hapd_init(hapd, ¶ms);
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os_free(params.bridge);
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if (hapd->drv_priv == NULL) {
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wpa_printf(MSG_ERROR, "%s driver initialization failed.",
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hapd->driver->name);
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hapd->driver = NULL;
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return -1;
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}
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if (hapd->driver->get_capa &&
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hapd->driver->get_capa(hapd->drv_priv, &capa) == 0) {
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iface->drv_flags = capa.flags;
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iface->probe_resp_offloads = capa.probe_resp_offloads;
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}
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return 0;
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}
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static struct hostapd_iface *
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hostapd_interface_init(struct hapd_interfaces *interfaces,
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const char *config_fname, int debug)
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{
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struct hostapd_iface *iface;
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int k;
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wpa_printf(MSG_ERROR, "Configuration file: %s", config_fname);
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iface = hostapd_init(config_fname);
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if (!iface)
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return NULL;
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iface->interfaces = interfaces;
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for (k = 0; k < debug; k++) {
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if (iface->bss[0]->conf->logger_stdout_level > 0)
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iface->bss[0]->conf->logger_stdout_level--;
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}
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if (iface->conf->bss[0].iface[0] != 0 ||
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hostapd_drv_none(iface->bss[0])) {
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if (hostapd_driver_init(iface) ||
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hostapd_setup_interface(iface)) {
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hostapd_interface_deinit_free(iface);
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return NULL;
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}
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}
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return iface;
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}
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/**
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* handle_term - SIGINT and SIGTERM handler to terminate hostapd process
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*/
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static void handle_term(int sig, void *signal_ctx)
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{
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wpa_printf(MSG_DEBUG, "Signal %d received - terminating", sig);
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eloop_terminate();
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}
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#ifndef CONFIG_NATIVE_WINDOWS
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static int handle_reload_iface(struct hostapd_iface *iface, void *ctx)
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{
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if (hostapd_reload_config(iface) < 0) {
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wpa_printf(MSG_WARNING, "Failed to read new configuration "
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"file - continuing with old.");
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}
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return 0;
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}
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/**
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* handle_reload - SIGHUP handler to reload configuration
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*/
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static void handle_reload(int sig, void *signal_ctx)
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{
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struct hapd_interfaces *interfaces = signal_ctx;
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wpa_printf(MSG_DEBUG, "Signal %d received - reloading configuration",
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sig);
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hostapd_for_each_interface(interfaces, handle_reload_iface, NULL);
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}
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static void handle_dump_state(int sig, void *signal_ctx)
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{
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#ifdef HOSTAPD_DUMP_STATE
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struct hapd_interfaces *interfaces = signal_ctx;
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hostapd_for_each_interface(interfaces, handle_dump_state_iface, NULL);
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#endif /* HOSTAPD_DUMP_STATE */
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}
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#endif /* CONFIG_NATIVE_WINDOWS */
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static int hostapd_global_init(struct hapd_interfaces *interfaces,
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const char *entropy_file)
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{
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int i;
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os_memset(&global, 0, sizeof(global));
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hostapd_logger_register_cb(hostapd_logger_cb);
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if (eap_server_register_methods()) {
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wpa_printf(MSG_ERROR, "Failed to register EAP methods");
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return -1;
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}
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if (eloop_init()) {
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wpa_printf(MSG_ERROR, "Failed to initialize event loop");
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return -1;
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}
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random_init(entropy_file);
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#ifndef CONFIG_NATIVE_WINDOWS
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eloop_register_signal(SIGHUP, handle_reload, interfaces);
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eloop_register_signal(SIGUSR1, handle_dump_state, interfaces);
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#endif /* CONFIG_NATIVE_WINDOWS */
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eloop_register_signal_terminate(handle_term, interfaces);
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#ifndef CONFIG_NATIVE_WINDOWS
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openlog("hostapd", 0, LOG_DAEMON);
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#endif /* CONFIG_NATIVE_WINDOWS */
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for (i = 0; wpa_drivers[i]; i++)
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global.drv_count++;
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if (global.drv_count == 0) {
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wpa_printf(MSG_ERROR, "No drivers enabled");
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return -1;
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}
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global.drv_priv = os_calloc(global.drv_count, sizeof(void *));
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if (global.drv_priv == NULL)
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return -1;
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return 0;
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}
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static void hostapd_global_deinit(const char *pid_file)
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{
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int i;
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for (i = 0; wpa_drivers[i] && global.drv_priv; i++) {
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if (!global.drv_priv[i])
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continue;
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wpa_drivers[i]->global_deinit(global.drv_priv[i]);
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}
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os_free(global.drv_priv);
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global.drv_priv = NULL;
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#ifdef EAP_SERVER_TNC
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tncs_global_deinit();
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#endif /* EAP_SERVER_TNC */
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random_deinit();
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eloop_destroy();
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#ifndef CONFIG_NATIVE_WINDOWS
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closelog();
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#endif /* CONFIG_NATIVE_WINDOWS */
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eap_server_unregister_methods();
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os_daemonize_terminate(pid_file);
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}
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static int hostapd_global_run(struct hapd_interfaces *ifaces, int daemonize,
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const char *pid_file)
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{
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#ifdef EAP_SERVER_TNC
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int tnc = 0;
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size_t i, k;
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for (i = 0; !tnc && i < ifaces->count; i++) {
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for (k = 0; k < ifaces->iface[i]->num_bss; k++) {
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if (ifaces->iface[i]->bss[0]->conf->tnc) {
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tnc++;
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break;
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}
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}
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}
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if (tnc && tncs_global_init() < 0) {
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wpa_printf(MSG_ERROR, "Failed to initialize TNCS");
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return -1;
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}
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#endif /* EAP_SERVER_TNC */
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if (daemonize && os_daemonize(pid_file)) {
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perror("daemon");
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return -1;
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}
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eloop_run();
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return 0;
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}
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static void show_version(void)
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{
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fprintf(stderr,
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"hostapd v" VERSION_STR "\n"
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"User space daemon for IEEE 802.11 AP management,\n"
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"IEEE 802.1X/WPA/WPA2/EAP/RADIUS Authenticator\n"
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"Copyright (c) 2002-2012, Jouni Malinen <j@w1.fi> "
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"and contributors\n");
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}
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static void usage(void)
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{
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show_version();
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fprintf(stderr,
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"\n"
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"usage: hostapd [-hdBKtv] [-P <PID file>] [-e <entropy file>] "
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"\\\n"
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" [-g <global ctrl_iface>] <configuration file(s)>\n"
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"\n"
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"options:\n"
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" -h show this usage\n"
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" -d show more debug messages (-dd for even more)\n"
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" -B run daemon in the background\n"
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" -e entropy file\n"
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" -g global control interface path\n"
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" -P PID file\n"
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" -K include key data in debug messages\n"
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#ifdef CONFIG_DEBUG_FILE
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" -f log output to debug file instead of stdout\n"
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#endif /* CONFIG_DEBUG_FILE */
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" -t include timestamps in some debug messages\n"
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" -v show hostapd version\n");
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exit(1);
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}
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static const char * hostapd_msg_ifname_cb(void *ctx)
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{
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struct hostapd_data *hapd = ctx;
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if (hapd && hapd->iconf && hapd->iconf->bss)
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return hapd->iconf->bss->iface;
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return NULL;
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}
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static int hostapd_get_global_ctrl_iface(struct hapd_interfaces *interfaces,
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const char *path)
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{
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char *pos;
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os_free(interfaces->global_iface_path);
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interfaces->global_iface_path = os_strdup(path);
|
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if (interfaces->global_iface_path == NULL)
|
|
return -1;
|
|
pos = os_strrchr(interfaces->global_iface_path, '/');
|
|
if (pos == NULL) {
|
|
os_free(interfaces->global_iface_path);
|
|
interfaces->global_iface_path = NULL;
|
|
return -1;
|
|
}
|
|
|
|
*pos = '\0';
|
|
interfaces->global_iface_name = pos + 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
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;
|
|
const char *entropy_file = NULL;
|
|
|
|
if (os_program_init())
|
|
return -1;
|
|
|
|
os_memset(&interfaces, 0, sizeof(interfaces));
|
|
interfaces.reload_config = hostapd_reload_config;
|
|
interfaces.config_read_cb = hostapd_config_read;
|
|
interfaces.for_each_interface = hostapd_for_each_interface;
|
|
interfaces.ctrl_iface_init = hostapd_ctrl_iface_init;
|
|
interfaces.ctrl_iface_deinit = hostapd_ctrl_iface_deinit;
|
|
interfaces.driver_init = hostapd_driver_init;
|
|
interfaces.global_iface_path = NULL;
|
|
interfaces.global_iface_name = NULL;
|
|
interfaces.global_ctrl_sock = -1;
|
|
|
|
for (;;) {
|
|
c = getopt(argc, argv, "Bde:f:hKP:tvg:");
|
|
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 'e':
|
|
entropy_file = optarg;
|
|
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;
|
|
case 'g':
|
|
hostapd_get_global_ctrl_iface(&interfaces, optarg);
|
|
break;
|
|
|
|
default:
|
|
usage();
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (optind == argc && interfaces.global_iface_path == NULL)
|
|
usage();
|
|
|
|
wpa_msg_register_ifname_cb(hostapd_msg_ifname_cb);
|
|
|
|
if (log_file)
|
|
wpa_debug_open_file(log_file);
|
|
|
|
interfaces.count = argc - optind;
|
|
if (interfaces.count) {
|
|
interfaces.iface = os_calloc(interfaces.count,
|
|
sizeof(struct hostapd_iface *));
|
|
if (interfaces.iface == NULL) {
|
|
wpa_printf(MSG_ERROR, "malloc failed");
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
if (hostapd_global_init(&interfaces, entropy_file))
|
|
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;
|
|
}
|
|
|
|
hostapd_global_ctrl_iface_init(&interfaces);
|
|
|
|
if (hostapd_global_run(&interfaces, daemonize, pid_file))
|
|
goto out;
|
|
|
|
ret = 0;
|
|
|
|
out:
|
|
hostapd_global_ctrl_iface_deinit(&interfaces);
|
|
/* 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;
|
|
}
|