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-rw-r--r--contrib/hostapd/ieee802_11_auth.c485
1 files changed, 0 insertions, 485 deletions
diff --git a/contrib/hostapd/ieee802_11_auth.c b/contrib/hostapd/ieee802_11_auth.c
deleted file mode 100644
index 75d0494..0000000
--- a/contrib/hostapd/ieee802_11_auth.c
+++ /dev/null
@@ -1,485 +0,0 @@
-/*
- * hostapd / IEEE 802.11 authentication (ACL)
- * Copyright (c) 2003-2006, 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 "includes.h"
-
-#ifndef CONFIG_NATIVE_WINDOWS
-
-#include "hostapd.h"
-#include "ieee802_11.h"
-#include "ieee802_11_auth.h"
-#include "radius.h"
-#include "radius_client.h"
-#include "eloop.h"
-#include "driver.h"
-
-#define RADIUS_ACL_TIMEOUT 30
-
-
-struct hostapd_cached_radius_acl {
- time_t timestamp;
- macaddr addr;
- int accepted; /* HOSTAPD_ACL_* */
- struct hostapd_cached_radius_acl *next;
- u32 session_timeout;
- u32 acct_interim_interval;
- int vlan_id;
-};
-
-
-struct hostapd_acl_query_data {
- time_t timestamp;
- u8 radius_id;
- macaddr addr;
- u8 *auth_msg; /* IEEE 802.11 authentication frame from station */
- size_t auth_msg_len;
- struct hostapd_acl_query_data *next;
-};
-
-
-static void hostapd_acl_cache_free(struct hostapd_cached_radius_acl *acl_cache)
-{
- struct hostapd_cached_radius_acl *prev;
-
- while (acl_cache) {
- prev = acl_cache;
- acl_cache = acl_cache->next;
- free(prev);
- }
-}
-
-
-static int hostapd_acl_cache_get(struct hostapd_data *hapd, const u8 *addr,
- u32 *session_timeout,
- u32 *acct_interim_interval, int *vlan_id)
-{
- struct hostapd_cached_radius_acl *entry;
- time_t now;
-
- time(&now);
- entry = hapd->acl_cache;
-
- while (entry) {
- if (memcmp(entry->addr, addr, ETH_ALEN) == 0) {
- if (now - entry->timestamp > RADIUS_ACL_TIMEOUT)
- return -1; /* entry has expired */
- if (entry->accepted == HOSTAPD_ACL_ACCEPT_TIMEOUT)
- if (session_timeout)
- *session_timeout = entry->session_timeout;
- if (acct_interim_interval)
- *acct_interim_interval = entry->acct_interim_interval;
- if (vlan_id)
- *vlan_id = entry->vlan_id;
- return entry->accepted;
- }
-
- entry = entry->next;
- }
-
- return -1;
-}
-
-
-static void hostapd_acl_query_free(struct hostapd_acl_query_data *query)
-{
- if (query == NULL)
- return;
- free(query->auth_msg);
- free(query);
-}
-
-
-static int hostapd_radius_acl_query(struct hostapd_data *hapd, const u8 *addr,
- struct hostapd_acl_query_data *query)
-{
- struct radius_msg *msg;
- char buf[128];
-
- query->radius_id = radius_client_get_id(hapd->radius);
- msg = radius_msg_new(RADIUS_CODE_ACCESS_REQUEST, query->radius_id);
- if (msg == NULL)
- return -1;
-
- radius_msg_make_authenticator(msg, addr, ETH_ALEN);
-
- snprintf(buf, sizeof(buf), RADIUS_ADDR_FORMAT, MAC2STR(addr));
- if (!radius_msg_add_attr(msg, RADIUS_ATTR_USER_NAME, (u8 *) buf,
- strlen(buf))) {
- printf("Could not add User-Name\n");
- goto fail;
- }
-
- if (!radius_msg_add_attr_user_password(
- msg, (u8 *) buf, strlen(buf),
- hapd->conf->radius->auth_server->shared_secret,
- hapd->conf->radius->auth_server->shared_secret_len)) {
- printf("Could not add User-Password\n");
- goto fail;
- }
-
- if (hapd->conf->own_ip_addr.af == AF_INET &&
- !radius_msg_add_attr(msg, RADIUS_ATTR_NAS_IP_ADDRESS,
- (u8 *) &hapd->conf->own_ip_addr.u.v4, 4)) {
- printf("Could not add NAS-IP-Address\n");
- goto fail;
- }
-
-#ifdef CONFIG_IPV6
- if (hapd->conf->own_ip_addr.af == AF_INET6 &&
- !radius_msg_add_attr(msg, RADIUS_ATTR_NAS_IPV6_ADDRESS,
- (u8 *) &hapd->conf->own_ip_addr.u.v6, 16)) {
- printf("Could not add NAS-IPv6-Address\n");
- goto fail;
- }
-#endif /* CONFIG_IPV6 */
-
- if (hapd->conf->nas_identifier &&
- !radius_msg_add_attr(msg, RADIUS_ATTR_NAS_IDENTIFIER,
- (u8 *) hapd->conf->nas_identifier,
- strlen(hapd->conf->nas_identifier))) {
- printf("Could not add NAS-Identifier\n");
- goto fail;
- }
-
- snprintf(buf, sizeof(buf), RADIUS_802_1X_ADDR_FORMAT ":%s",
- MAC2STR(hapd->own_addr), hapd->conf->ssid.ssid);
- if (!radius_msg_add_attr(msg, RADIUS_ATTR_CALLED_STATION_ID,
- (u8 *) buf, strlen(buf))) {
- printf("Could not add Called-Station-Id\n");
- goto fail;
- }
-
- snprintf(buf, sizeof(buf), RADIUS_802_1X_ADDR_FORMAT,
- MAC2STR(addr));
- if (!radius_msg_add_attr(msg, RADIUS_ATTR_CALLING_STATION_ID,
- (u8 *) buf, strlen(buf))) {
- printf("Could not add Calling-Station-Id\n");
- goto fail;
- }
-
- if (!radius_msg_add_attr_int32(msg, RADIUS_ATTR_NAS_PORT_TYPE,
- RADIUS_NAS_PORT_TYPE_IEEE_802_11)) {
- printf("Could not add NAS-Port-Type\n");
- goto fail;
- }
-
- snprintf(buf, sizeof(buf), "CONNECT 11Mbps 802.11b");
- if (!radius_msg_add_attr(msg, RADIUS_ATTR_CONNECT_INFO,
- (u8 *) buf, strlen(buf))) {
- printf("Could not add Connect-Info\n");
- goto fail;
- }
-
- radius_client_send(hapd->radius, msg, RADIUS_AUTH, addr);
- return 0;
-
- fail:
- radius_msg_free(msg);
- free(msg);
- return -1;
-}
-
-
-int hostapd_allowed_address(struct hostapd_data *hapd, const u8 *addr,
- const u8 *msg, size_t len, u32 *session_timeout,
- u32 *acct_interim_interval, int *vlan_id)
-{
- if (session_timeout)
- *session_timeout = 0;
- if (acct_interim_interval)
- *acct_interim_interval = 0;
- if (vlan_id)
- *vlan_id = 0;
-
- if (hostapd_maclist_found(hapd->conf->accept_mac,
- hapd->conf->num_accept_mac, addr))
- return HOSTAPD_ACL_ACCEPT;
-
- if (hostapd_maclist_found(hapd->conf->deny_mac,
- hapd->conf->num_deny_mac, addr))
- return HOSTAPD_ACL_REJECT;
-
- if (hapd->conf->macaddr_acl == ACCEPT_UNLESS_DENIED)
- return HOSTAPD_ACL_ACCEPT;
- if (hapd->conf->macaddr_acl == DENY_UNLESS_ACCEPTED)
- return HOSTAPD_ACL_REJECT;
-
- if (hapd->conf->macaddr_acl == USE_EXTERNAL_RADIUS_AUTH) {
- struct hostapd_acl_query_data *query;
-
- /* Check whether ACL cache has an entry for this station */
- int res = hostapd_acl_cache_get(hapd, addr, session_timeout,
- acct_interim_interval,
- vlan_id);
- if (res == HOSTAPD_ACL_ACCEPT ||
- res == HOSTAPD_ACL_ACCEPT_TIMEOUT)
- return res;
- if (res == HOSTAPD_ACL_REJECT)
- return HOSTAPD_ACL_REJECT;
-
- query = hapd->acl_queries;
- while (query) {
- if (memcmp(query->addr, addr, ETH_ALEN) == 0) {
- /* pending query in RADIUS retransmit queue;
- * do not generate a new one */
- return HOSTAPD_ACL_PENDING;
- }
- query = query->next;
- }
-
- if (!hapd->conf->radius->auth_server)
- return HOSTAPD_ACL_REJECT;
-
- /* No entry in the cache - query external RADIUS server */
- query = wpa_zalloc(sizeof(*query));
- if (query == NULL) {
- printf("malloc for query data failed\n");
- return HOSTAPD_ACL_REJECT;
- }
- time(&query->timestamp);
- memcpy(query->addr, addr, ETH_ALEN);
- if (hostapd_radius_acl_query(hapd, addr, query)) {
- printf("Failed to send Access-Request for ACL "
- "query.\n");
- hostapd_acl_query_free(query);
- return HOSTAPD_ACL_REJECT;
- }
-
- query->auth_msg = malloc(len);
- if (query->auth_msg == NULL) {
- printf("Failed to allocate memory for auth frame.\n");
- hostapd_acl_query_free(query);
- return HOSTAPD_ACL_REJECT;
- }
- memcpy(query->auth_msg, msg, len);
- query->auth_msg_len = len;
- query->next = hapd->acl_queries;
- hapd->acl_queries = query;
-
- /* Queued data will be processed in hostapd_acl_recv_radius()
- * when RADIUS server replies to the sent Access-Request. */
- return HOSTAPD_ACL_PENDING;
- }
-
- return HOSTAPD_ACL_REJECT;
-}
-
-
-static void hostapd_acl_expire_cache(struct hostapd_data *hapd, time_t now)
-{
- struct hostapd_cached_radius_acl *prev, *entry, *tmp;
-
- prev = NULL;
- entry = hapd->acl_cache;
-
- while (entry) {
- if (now - entry->timestamp > RADIUS_ACL_TIMEOUT) {
- HOSTAPD_DEBUG(HOSTAPD_DEBUG_MINIMAL,
- "Cached ACL entry for " MACSTR
- " has expired.\n", MAC2STR(entry->addr));
- if (prev)
- prev->next = entry->next;
- else
- hapd->acl_cache = entry->next;
-#ifdef CONFIG_DRIVER_RADIUS_ACL
- hostapd_set_radius_acl_expire(hapd, entry->addr);
-#endif
- tmp = entry;
- entry = entry->next;
- free(tmp);
- continue;
- }
-
- prev = entry;
- entry = entry->next;
- }
-}
-
-
-static void hostapd_acl_expire_queries(struct hostapd_data *hapd, time_t now)
-{
- struct hostapd_acl_query_data *prev, *entry, *tmp;
-
- prev = NULL;
- entry = hapd->acl_queries;
-
- while (entry) {
- if (now - entry->timestamp > RADIUS_ACL_TIMEOUT) {
- HOSTAPD_DEBUG(HOSTAPD_DEBUG_MINIMAL,
- "ACL query for " MACSTR
- " has expired.\n", MAC2STR(entry->addr));
- if (prev)
- prev->next = entry->next;
- else
- hapd->acl_queries = entry->next;
-
- tmp = entry;
- entry = entry->next;
- hostapd_acl_query_free(tmp);
- continue;
- }
-
- prev = entry;
- entry = entry->next;
- }
-}
-
-
-static void hostapd_acl_expire(void *eloop_ctx, void *timeout_ctx)
-{
- struct hostapd_data *hapd = eloop_ctx;
- time_t now;
-
- time(&now);
- hostapd_acl_expire_cache(hapd, now);
- hostapd_acl_expire_queries(hapd, now);
-
- eloop_register_timeout(10, 0, hostapd_acl_expire, hapd, NULL);
-}
-
-
-/* Return 0 if RADIUS message was a reply to ACL query (and was processed here)
- * or -1 if not. */
-static RadiusRxResult
-hostapd_acl_recv_radius(struct radius_msg *msg, struct radius_msg *req,
- u8 *shared_secret, size_t shared_secret_len,
- void *data)
-{
- struct hostapd_data *hapd = data;
- struct hostapd_acl_query_data *query, *prev;
- struct hostapd_cached_radius_acl *cache;
-
- query = hapd->acl_queries;
- prev = NULL;
- while (query) {
- if (query->radius_id == msg->hdr->identifier)
- break;
- prev = query;
- query = query->next;
- }
- if (query == NULL)
- return RADIUS_RX_UNKNOWN;
-
- HOSTAPD_DEBUG(HOSTAPD_DEBUG_MINIMAL, "Found matching Access-Request "
- "for RADIUS message (id=%d)\n", query->radius_id);
-
- if (radius_msg_verify(msg, shared_secret, shared_secret_len, req, 0)) {
- printf("Incoming RADIUS packet did not have correct "
- "authenticator - dropped\n");
- return RADIUS_RX_INVALID_AUTHENTICATOR;
- }
-
- if (msg->hdr->code != RADIUS_CODE_ACCESS_ACCEPT &&
- msg->hdr->code != RADIUS_CODE_ACCESS_REJECT) {
- printf("Unknown RADIUS message code %d to ACL query\n",
- msg->hdr->code);
- return RADIUS_RX_UNKNOWN;
- }
-
- /* Insert Accept/Reject info into ACL cache */
- cache = wpa_zalloc(sizeof(*cache));
- if (cache == NULL) {
- printf("Failed to add ACL cache entry\n");
- goto done;
- }
- time(&cache->timestamp);
- memcpy(cache->addr, query->addr, sizeof(cache->addr));
- if (msg->hdr->code == RADIUS_CODE_ACCESS_ACCEPT) {
- if (radius_msg_get_attr_int32(msg, RADIUS_ATTR_SESSION_TIMEOUT,
- &cache->session_timeout) == 0)
- cache->accepted = HOSTAPD_ACL_ACCEPT_TIMEOUT;
- else
- cache->accepted = HOSTAPD_ACL_ACCEPT;
-
- if (radius_msg_get_attr_int32(
- msg, RADIUS_ATTR_ACCT_INTERIM_INTERVAL,
- &cache->acct_interim_interval) == 0 &&
- cache->acct_interim_interval < 60) {
- HOSTAPD_DEBUG(HOSTAPD_DEBUG_MINIMAL, "Ignored too "
- "small Acct-Interim-Interval %d for "
- "STA " MACSTR "\n",
- cache->acct_interim_interval,
- MAC2STR(query->addr));
- cache->acct_interim_interval = 0;
- }
-
- cache->vlan_id = radius_msg_get_vlanid(msg);
- } else
- cache->accepted = HOSTAPD_ACL_REJECT;
- cache->next = hapd->acl_cache;
- hapd->acl_cache = cache;
-
-#ifdef CONFIG_DRIVER_RADIUS_ACL
- hostapd_set_radius_acl_auth(hapd, query->addr, cache->accepted,
- cache->session_timeout);
-#else
- /* Re-send original authentication frame for 802.11 processing */
- HOSTAPD_DEBUG(HOSTAPD_DEBUG_MINIMAL, "Re-sending authentication frame "
- "after successful RADIUS ACL query\n");
- ieee802_11_mgmt(hapd, query->auth_msg, query->auth_msg_len,
- WLAN_FC_STYPE_AUTH, NULL);
-#endif
-
- done:
- if (prev == NULL)
- hapd->acl_queries = query->next;
- else
- prev->next = query->next;
-
- hostapd_acl_query_free(query);
-
- return RADIUS_RX_PROCESSED;
-}
-
-
-int hostapd_acl_init(struct hostapd_data *hapd)
-{
- if (radius_client_register(hapd->radius, RADIUS_AUTH,
- hostapd_acl_recv_radius, hapd))
- return -1;
-
- eloop_register_timeout(10, 0, hostapd_acl_expire, hapd, NULL);
-
- return 0;
-}
-
-
-void hostapd_acl_deinit(struct hostapd_data *hapd)
-{
- struct hostapd_acl_query_data *query, *prev;
-
- eloop_cancel_timeout(hostapd_acl_expire, hapd, NULL);
-
- hostapd_acl_cache_free(hapd->acl_cache);
-
- query = hapd->acl_queries;
- while (query) {
- prev = query;
- query = query->next;
- hostapd_acl_query_free(prev);
- }
-}
-
-
-int hostapd_acl_reconfig(struct hostapd_data *hapd,
- struct hostapd_config *oldconf)
-{
- if (!hapd->radius_client_reconfigured)
- return 0;
-
- hostapd_acl_deinit(hapd);
- return hostapd_acl_init(hapd);
-}
-
-#endif /* CONFIG_NATIVE_WINDOWS */
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