/*
* hostapd / RADIUS Accounting
- * Copyright (c) 2002-2009, 2012, Jouni Malinen <j@w1.fi>
+ * Copyright (c) 2002-2009, 2012-2015, Jouni Malinen <j@w1.fi>
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
size_t len;
int i;
struct wpabuf *b;
+ struct os_time now;
msg = radius_msg_new(RADIUS_CODE_ACCOUNTING_REQUEST,
radius_client_get_id(hapd->radius));
return NULL;
}
- if (sta) {
- radius_msg_make_authenticator(msg, (u8 *) sta, sizeof(*sta));
-
- if ((hapd->conf->wpa & 2) &&
- !hapd->conf->disable_pmksa_caching &&
- sta->eapol_sm && sta->eapol_sm->acct_multi_session_id_hi) {
- os_snprintf(buf, sizeof(buf), "%08X+%08X",
- sta->eapol_sm->acct_multi_session_id_hi,
- sta->eapol_sm->acct_multi_session_id_lo);
- if (!radius_msg_add_attr(
- msg, RADIUS_ATTR_ACCT_MULTI_SESSION_ID,
- (u8 *) buf, os_strlen(buf))) {
- wpa_printf(MSG_INFO,
- "Could not add Acct-Multi-Session-Id");
- goto fail;
- }
- }
- } else {
- radius_msg_make_authenticator(msg, (u8 *) hapd, sizeof(*hapd));
- }
-
if (!radius_msg_add_attr_int32(msg, RADIUS_ATTR_ACCT_STATUS_TYPE,
status_type)) {
wpa_printf(MSG_INFO, "Could not add Acct-Status-Type");
goto fail;
}
- if (!hostapd_config_get_radius_attr(hapd->conf->radius_acct_req_attr,
- RADIUS_ATTR_ACCT_AUTHENTIC) &&
- !radius_msg_add_attr_int32(msg, RADIUS_ATTR_ACCT_AUTHENTIC,
- hapd->conf->ieee802_1x ?
- RADIUS_ACCT_AUTHENTIC_RADIUS :
- RADIUS_ACCT_AUTHENTIC_LOCAL)) {
- wpa_printf(MSG_INFO, "Could not add Acct-Authentic");
- goto fail;
- }
-
if (sta) {
+ if (!hostapd_config_get_radius_attr(
+ hapd->conf->radius_acct_req_attr,
+ RADIUS_ATTR_ACCT_AUTHENTIC) &&
+ !radius_msg_add_attr_int32(msg, RADIUS_ATTR_ACCT_AUTHENTIC,
+ hapd->conf->ieee802_1x ?
+ RADIUS_ACCT_AUTHENTIC_RADIUS :
+ RADIUS_ACCT_AUTHENTIC_LOCAL)) {
+ wpa_printf(MSG_INFO, "Could not add Acct-Authentic");
+ goto fail;
+ }
+
/* Use 802.1X identity if available */
val = ieee802_1x_get_identity(sta->eapol_sm, &len);
wpa_printf(MSG_ERROR, "Could not add CUI from ACL");
goto fail;
}
+
+ if (sta->ipaddr &&
+ !radius_msg_add_attr_int32(msg,
+ RADIUS_ATTR_FRAMED_IP_ADDRESS,
+ be_to_host32(sta->ipaddr))) {
+ wpa_printf(MSG_ERROR,
+ "Could not add Framed-IP-Address");
+ goto fail;
+ }
+ }
+
+ os_get_time(&now);
+ if (now.sec > 1000000000 &&
+ !radius_msg_add_attr_int32(msg, RADIUS_ATTR_EVENT_TIMESTAMP,
+ now.sec)) {
+ wpa_printf(MSG_INFO, "Could not add Event-Timestamp");
+ goto fail;
+ }
+
+ /*
+ * Add Acct-Delay-Time with zero value for the first transmission. This
+ * will be updated within radius_client.c when retransmitting the frame.
+ */
+ if (!radius_msg_add_attr_int32(msg, RADIUS_ATTR_ACCT_DELAY_TIME, 0)) {
+ wpa_printf(MSG_INFO, "Could not add Acct-Delay-Time");
+ goto fail;
}
return msg;
if (hostapd_drv_read_sta_data(hapd, data, sta->addr))
return -1;
- if (sta->last_rx_bytes > data->rx_bytes)
- sta->acct_input_gigawords++;
- if (sta->last_tx_bytes > data->tx_bytes)
- sta->acct_output_gigawords++;
- sta->last_rx_bytes = data->rx_bytes;
- sta->last_tx_bytes = data->tx_bytes;
+ if (!data->bytes_64bit) {
+ /* Extend 32-bit counters from the driver to 64-bit counters */
+ if (sta->last_rx_bytes_lo > data->rx_bytes)
+ sta->last_rx_bytes_hi++;
+ sta->last_rx_bytes_lo = data->rx_bytes;
+
+ if (sta->last_tx_bytes_lo > data->tx_bytes)
+ sta->last_tx_bytes_hi++;
+ sta->last_tx_bytes_lo = data->tx_bytes;
+ }
hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_RADIUS,
- HOSTAPD_LEVEL_DEBUG, "updated TX/RX stats: "
- "Acct-Input-Octets=%lu Acct-Input-Gigawords=%u "
- "Acct-Output-Octets=%lu Acct-Output-Gigawords=%u",
- sta->last_rx_bytes, sta->acct_input_gigawords,
- sta->last_tx_bytes, sta->acct_output_gigawords);
+ HOSTAPD_LEVEL_DEBUG,
+ "updated TX/RX stats: rx_bytes=%llu [%u:%u] tx_bytes=%llu [%u:%u] bytes_64bit=%d",
+ data->rx_bytes, sta->last_rx_bytes_hi,
+ sta->last_rx_bytes_lo,
+ data->tx_bytes, sta->last_tx_bytes_hi,
+ sta->last_tx_bytes_lo,
+ data->bytes_64bit);
return 0;
}
hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_RADIUS,
HOSTAPD_LEVEL_INFO,
- "starting accounting session %08X-%08X",
- sta->acct_session_id_hi, sta->acct_session_id_lo);
+ "starting accounting session %016llX",
+ (unsigned long long) sta->acct_session_id);
os_get_reltime(&sta->acct_session_start);
- sta->last_rx_bytes = sta->last_tx_bytes = 0;
- sta->acct_input_gigawords = sta->acct_output_gigawords = 0;
+ sta->last_rx_bytes_hi = 0;
+ sta->last_rx_bytes_lo = 0;
+ sta->last_tx_bytes_hi = 0;
+ sta->last_tx_bytes_lo = 0;
hostapd_drv_sta_clear_stats(hapd, sta->addr);
if (!hapd->conf->radius->acct_server)
int cause = sta->acct_terminate_cause;
struct hostap_sta_driver_data data;
struct os_reltime now_r, diff;
- struct os_time now;
- u32 gigawords;
+ u64 bytes;
if (!hapd->conf->radius->acct_server)
return;
}
os_get_reltime(&now_r);
- os_get_time(&now);
os_reltime_sub(&now_r, &sta->acct_session_start, &diff);
if (!radius_msg_add_attr_int32(msg, RADIUS_ATTR_ACCT_SESSION_TIME,
diff.sec)) {
wpa_printf(MSG_INFO, "Could not add Acct-Output-Packets");
goto fail;
}
+ if (data.bytes_64bit)
+ bytes = data.rx_bytes;
+ else
+ bytes = ((u64) sta->last_rx_bytes_hi << 32) |
+ sta->last_rx_bytes_lo;
if (!radius_msg_add_attr_int32(msg,
RADIUS_ATTR_ACCT_INPUT_OCTETS,
- data.rx_bytes)) {
+ (u32) bytes)) {
wpa_printf(MSG_INFO, "Could not add Acct-Input-Octets");
goto fail;
}
- gigawords = sta->acct_input_gigawords;
-#if __WORDSIZE == 64
- gigawords += data.rx_bytes >> 32;
-#endif
- if (gigawords &&
- !radius_msg_add_attr_int32(
- msg, RADIUS_ATTR_ACCT_INPUT_GIGAWORDS,
- gigawords)) {
+ if (!radius_msg_add_attr_int32(msg,
+ RADIUS_ATTR_ACCT_INPUT_GIGAWORDS,
+ (u32) (bytes >> 32))) {
wpa_printf(MSG_INFO, "Could not add Acct-Input-Gigawords");
goto fail;
}
+ if (data.bytes_64bit)
+ bytes = data.tx_bytes;
+ else
+ bytes = ((u64) sta->last_tx_bytes_hi << 32) |
+ sta->last_tx_bytes_lo;
if (!radius_msg_add_attr_int32(msg,
RADIUS_ATTR_ACCT_OUTPUT_OCTETS,
- data.tx_bytes)) {
+ (u32) bytes)) {
wpa_printf(MSG_INFO, "Could not add Acct-Output-Octets");
goto fail;
}
- gigawords = sta->acct_output_gigawords;
-#if __WORDSIZE == 64
- gigawords += data.tx_bytes >> 32;
-#endif
- if (gigawords &&
- !radius_msg_add_attr_int32(
- msg, RADIUS_ATTR_ACCT_OUTPUT_GIGAWORDS,
- gigawords)) {
+ if (!radius_msg_add_attr_int32(msg,
+ RADIUS_ATTR_ACCT_OUTPUT_GIGAWORDS,
+ (u32) (bytes >> 32))) {
wpa_printf(MSG_INFO, "Could not add Acct-Output-Gigawords");
goto fail;
}
}
- if (!radius_msg_add_attr_int32(msg, RADIUS_ATTR_EVENT_TIMESTAMP,
- now.sec)) {
- wpa_printf(MSG_INFO, "Could not add Event-Timestamp");
- goto fail;
- }
-
if (eloop_terminated())
cause = RADIUS_ACCT_TERMINATE_CAUSE_ADMIN_REBOOT;
eloop_cancel_timeout(accounting_interim_update, hapd, sta);
hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_RADIUS,
HOSTAPD_LEVEL_INFO,
- "stopped accounting session %08X-%08X",
- sta->acct_session_id_hi,
- sta->acct_session_id_lo);
+ "stopped accounting session %016llX",
+ (unsigned long long) sta->acct_session_id);
sta->acct_session_started = 0;
}
}
-void accounting_sta_get_id(struct hostapd_data *hapd,
- struct sta_info *sta)
+int accounting_sta_get_id(struct hostapd_data *hapd, struct sta_info *sta)
{
- sta->acct_session_id_lo = hapd->acct_session_id_lo++;
- if (hapd->acct_session_id_lo == 0) {
- hapd->acct_session_id_hi++;
- }
- sta->acct_session_id_hi = hapd->acct_session_id_hi;
+ return radius_gen_session_id((u8 *) &sta->acct_session_id,
+ sizeof(sta->acct_session_id));
}
if (!msg)
return;
- if (!radius_msg_add_attr_int32(msg, RADIUS_ATTR_ACCT_TERMINATE_CAUSE,
- RADIUS_ACCT_TERMINATE_CAUSE_NAS_REBOOT))
- {
- wpa_printf(MSG_INFO, "Could not add Acct-Terminate-Cause");
- radius_msg_free(msg);
- return;
+ if (hapd->acct_session_id) {
+ char buf[20];
+
+ os_snprintf(buf, sizeof(buf), "%016llX",
+ (unsigned long long) hapd->acct_session_id);
+ if (!radius_msg_add_attr(msg, RADIUS_ATTR_ACCT_SESSION_ID,
+ (u8 *) buf, os_strlen(buf)))
+ wpa_printf(MSG_ERROR, "Could not add Acct-Session-Id");
}
if (radius_client_send(hapd->radius, msg, RADIUS_ACCT, NULL) < 0)
}
+static void accounting_interim_error_cb(const u8 *addr, void *ctx)
+{
+ struct hostapd_data *hapd = ctx;
+ struct sta_info *sta;
+ unsigned int i, wait_time;
+ int res;
+
+ sta = ap_get_sta(hapd, addr);
+ if (!sta)
+ return;
+ sta->acct_interim_errors++;
+ if (sta->acct_interim_errors > 10 /* RADIUS_CLIENT_MAX_RETRIES */) {
+ wpa_printf(MSG_DEBUG,
+ "Interim RADIUS accounting update failed for " MACSTR
+ " - too many errors, abandon this interim accounting update",
+ MAC2STR(addr));
+ sta->acct_interim_errors = 0;
+ /* Next update will be tried after normal update interval */
+ return;
+ }
+
+ /*
+ * Use a shorter update interval as an improved retransmission mechanism
+ * for failed interim accounting updates. This allows the statistics to
+ * be updated for each retransmission.
+ *
+ * RADIUS client code has already waited RADIUS_CLIENT_FIRST_WAIT.
+ * Schedule the first retry attempt immediately and every following one
+ * with exponential backoff.
+ */
+ if (sta->acct_interim_errors == 1) {
+ wait_time = 0;
+ } else {
+ wait_time = 3; /* RADIUS_CLIENT_FIRST_WAIT */
+ for (i = 1; i < sta->acct_interim_errors; i++)
+ wait_time *= 2;
+ }
+ res = eloop_deplete_timeout(wait_time, 0, accounting_interim_update,
+ hapd, sta);
+ if (res == 1)
+ wpa_printf(MSG_DEBUG,
+ "Interim RADIUS accounting update failed for " MACSTR
+ " (error count: %u) - schedule next update in %u seconds",
+ MAC2STR(addr), sta->acct_interim_errors, wait_time);
+ else if (res == 0)
+ wpa_printf(MSG_DEBUG,
+ "Interim RADIUS accounting update failed for " MACSTR
+ " (error count: %u)", MAC2STR(addr),
+ sta->acct_interim_errors);
+ else
+ wpa_printf(MSG_DEBUG,
+ "Interim RADIUS accounting update failed for " MACSTR
+ " (error count: %u) - no timer found", MAC2STR(addr),
+ sta->acct_interim_errors);
+}
+
+
/**
* accounting_init: Initialize accounting
* @hapd: hostapd BSS data
*/
int accounting_init(struct hostapd_data *hapd)
{
- struct os_time now;
-
- /* Acct-Session-Id should be unique over reboots. Using a random number
- * is preferred. If that is not available, take the current time. Mix
- * in microseconds to make this more likely to be unique. */
- os_get_time(&now);
- if (os_get_random((u8 *) &hapd->acct_session_id_hi,
- sizeof(hapd->acct_session_id_hi)) < 0)
- hapd->acct_session_id_hi = now.sec;
- hapd->acct_session_id_hi ^= now.usec;
+ if (radius_gen_session_id((u8 *) &hapd->acct_session_id,
+ sizeof(hapd->acct_session_id)) < 0)
+ return -1;
if (radius_client_register(hapd->radius, RADIUS_ACCT,
accounting_receive, hapd))
return -1;
+ radius_client_set_interim_error_cb(hapd->radius,
+ accounting_interim_error_cb, hapd);
accounting_report_state(hapd, 1);
projects / mech_eap.git / blobdiff