1 /* 2 * hostapd / State dump 3 * Copyright (c) 2002-2009, Jouni Malinen <j (at) w1.fi> 4 * 5 * This program is free software; you can redistribute it and/or modify 6 * it under the terms of the GNU General Public License version 2 as 7 * published by the Free Software Foundation. 8 * 9 * Alternatively, this software may be distributed under the terms of BSD 10 * license. 11 * 12 * See README and COPYING for more details. 13 */ 14 15 #include "utils/includes.h" 16 17 #include "utils/common.h" 18 #include "radius/radius_client.h" 19 #include "radius/radius_server.h" 20 #include "eapol_auth/eapol_auth_sm.h" 21 #include "eapol_auth/eapol_auth_sm_i.h" 22 #include "eap_server/eap.h" 23 #include "ap/hostapd.h" 24 #include "ap/ap_config.h" 25 #include "ap/sta_info.h" 26 #include "dump_state.h" 27 28 29 static void fprint_char(FILE *f, char c) 30 { 31 if (c >= 32 && c < 127) 32 fprintf(f, "%c", c); 33 else 34 fprintf(f, "<%02x>", c); 35 } 36 37 38 static void ieee802_1x_dump_state(FILE *f, const char *prefix, 39 struct sta_info *sta) 40 { 41 struct eapol_state_machine *sm = sta->eapol_sm; 42 if (sm == NULL) 43 return; 44 45 fprintf(f, "%sIEEE 802.1X:\n", prefix); 46 47 if (sm->identity) { 48 size_t i; 49 fprintf(f, "%sidentity=", prefix); 50 for (i = 0; i < sm->identity_len; i++) 51 fprint_char(f, sm->identity[i]); 52 fprintf(f, "\n"); 53 } 54 55 fprintf(f, "%slast EAP type: Authentication Server: %d (%s) " 56 "Supplicant: %d (%s)\n", prefix, 57 sm->eap_type_authsrv, 58 eap_server_get_name(0, sm->eap_type_authsrv), 59 sm->eap_type_supp, eap_server_get_name(0, sm->eap_type_supp)); 60 61 fprintf(f, "%scached_packets=%s\n", prefix, 62 sm->last_recv_radius ? "[RX RADIUS]" : ""); 63 64 eapol_auth_dump_state(f, prefix, sm); 65 } 66 67 68 /** 69 * hostapd_dump_state - SIGUSR1 handler to dump hostapd state to a text file 70 */ 71 static void hostapd_dump_state(struct hostapd_data *hapd) 72 { 73 FILE *f; 74 time_t now; 75 struct sta_info *sta; 76 int i; 77 #ifndef CONFIG_NO_RADIUS 78 char *buf; 79 #endif /* CONFIG_NO_RADIUS */ 80 81 if (!hapd->conf->dump_log_name) { 82 wpa_printf(MSG_DEBUG, "Dump file not defined - ignoring dump " 83 "request"); 84 return; 85 } 86 87 wpa_printf(MSG_DEBUG, "Dumping hostapd state to '%s'", 88 hapd->conf->dump_log_name); 89 f = fopen(hapd->conf->dump_log_name, "w"); 90 if (f == NULL) { 91 wpa_printf(MSG_WARNING, "Could not open dump file '%s' for " 92 "writing.", hapd->conf->dump_log_name); 93 return; 94 } 95 96 time(&now); 97 fprintf(f, "hostapd state dump - %s", ctime(&now)); 98 fprintf(f, "num_sta=%d num_sta_non_erp=%d " 99 "num_sta_no_short_slot_time=%d\n" 100 "num_sta_no_short_preamble=%d\n", 101 hapd->num_sta, hapd->iface->num_sta_non_erp, 102 hapd->iface->num_sta_no_short_slot_time, 103 hapd->iface->num_sta_no_short_preamble); 104 105 for (sta = hapd->sta_list; sta != NULL; sta = sta->next) { 106 fprintf(f, "\nSTA=" MACSTR "\n", MAC2STR(sta->addr)); 107 108 fprintf(f, 109 " AID=%d flags=0x%x %s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n" 110 " capability=0x%x listen_interval=%d\n", 111 sta->aid, 112 sta->flags, 113 (sta->flags & WLAN_STA_AUTH ? "[AUTH]" : ""), 114 (sta->flags & WLAN_STA_ASSOC ? "[ASSOC]" : ""), 115 (sta->flags & WLAN_STA_PS ? "[PS]" : ""), 116 (sta->flags & WLAN_STA_TIM ? "[TIM]" : ""), 117 (sta->flags & WLAN_STA_PERM ? "[PERM]" : ""), 118 (ap_sta_is_authorized(sta) ? "[AUTHORIZED]" : ""), 119 (sta->flags & WLAN_STA_PENDING_POLL ? "[PENDING_POLL" : 120 ""), 121 (sta->flags & WLAN_STA_SHORT_PREAMBLE ? 122 "[SHORT_PREAMBLE]" : ""), 123 (sta->flags & WLAN_STA_PREAUTH ? "[PREAUTH]" : ""), 124 (sta->flags & WLAN_STA_WMM ? "[WMM]" : ""), 125 (sta->flags & WLAN_STA_MFP ? "[MFP]" : ""), 126 (sta->flags & WLAN_STA_WPS ? "[WPS]" : ""), 127 (sta->flags & WLAN_STA_MAYBE_WPS ? "[MAYBE_WPS]" : ""), 128 (sta->flags & WLAN_STA_WDS ? "[WDS]" : ""), 129 (sta->flags & WLAN_STA_NONERP ? "[NonERP]" : ""), 130 sta->capability, 131 sta->listen_interval); 132 133 fprintf(f, " supported_rates="); 134 for (i = 0; i < sta->supported_rates_len; i++) 135 fprintf(f, "%02x ", sta->supported_rates[i]); 136 fprintf(f, "\n"); 137 138 fprintf(f, 139 " timeout_next=%s\n", 140 (sta->timeout_next == STA_NULLFUNC ? "NULLFUNC POLL" : 141 (sta->timeout_next == STA_DISASSOC ? "DISASSOC" : 142 "DEAUTH"))); 143 144 ieee802_1x_dump_state(f, " ", sta); 145 } 146 147 #ifndef CONFIG_NO_RADIUS 148 buf = os_malloc(4096); 149 if (buf) { 150 int count = radius_client_get_mib(hapd->radius, buf, 4096); 151 if (count < 0) 152 count = 0; 153 else if (count > 4095) 154 count = 4095; 155 buf[count] = '\0'; 156 fprintf(f, "%s", buf); 157 158 #ifdef RADIUS_SERVER 159 count = radius_server_get_mib(hapd->radius_srv, buf, 4096); 160 if (count < 0) 161 count = 0; 162 else if (count > 4095) 163 count = 4095; 164 buf[count] = '\0'; 165 fprintf(f, "%s", buf); 166 #endif /* RADIUS_SERVER */ 167 168 os_free(buf); 169 } 170 #endif /* CONFIG_NO_RADIUS */ 171 fclose(f); 172 } 173 174 175 int handle_dump_state_iface(struct hostapd_iface *iface, void *ctx) 176 { 177 size_t i; 178 179 for (i = 0; i < iface->num_bss; i++) 180 hostapd_dump_state(iface->bss[i]); 181 182 return 0; 183 } 184
