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hostap/src/ap/drv_callbacks.c

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Moved driver callback functions from hostapd.c to a new file
2009-01-09 16:27:03 +01:00
/*
* hostapd / Callback functions for driver wrappers
* Copyright (c) 2002-2009, Jouni Malinen <j@w1.fi>
*
Remove the GPL notification from files contributed by Jouni Malinen Remove the GPL notification text from the files that were initially contributed by myself. Signed-hostap: Jouni Malinen <j@w1.fi>
2012-02-11 15:46:35 +01:00
* This software may be distributed under the terms of the BSD license.
* See README for more details.
Moved driver callback functions from hostapd.c to a new file
2009-01-09 16:27:03 +01:00
*/
Rename some src/ap files to avoid duplicate file names Doxygen and some build tools may get a bit confused about same file name being used in different directories. Clean this up a bit by renaming some of the duplicated file names in src/ap.
2009-12-25 23:05:40 +01:00
#include "utils/includes.h"
Moved driver callback functions from hostapd.c to a new file
2009-01-09 16:27:03 +01:00
Rename some src/ap files to avoid duplicate file names Doxygen and some build tools may get a bit confused about same file name being used in different directories. Clean this up a bit by renaming some of the duplicated file names in src/ap.
2009-12-25 23:05:40 +01:00
#include "utils/common.h"
Moved driver callback functions from hostapd.c to a new file
2009-01-09 16:27:03 +01:00
#include "radius/radius.h"
Replace src/ap/driver_i.h with non-inlined functions in ap_drv_ops.c
2009-12-25 23:21:22 +01:00
#include "drivers/driver.h"
Include header files explicitly in *.c, not via header files
2009-12-25 23:31:51 +01:00
#include "common/ieee802_11_defs.h"
Allow hostapd_notif_assoc() to be called with all IEs This makes the call simpler for driver wrappers since there is no need to parse the IEs anymore before indicating association. In addition, this allows association processing to be extended to use other IEs in the future.
2010-04-03 20:03:13 +02:00
#include "common/ieee802_11_common.h"
Maintain internal entropy pool for augmenting random number generation By default, make hostapd and wpa_supplicant maintain an internal entropy pool that is fed with following information: hostapd: - Probe Request frames (timing, RSSI) - Association events (timing) - SNonce from Supplicants wpa_supplicant: - Scan results (timing, signal/noise) - Association events (timing) The internal pool is used to augment the random numbers generated with the OS mechanism (os_get_random()). While the internal implementation is not expected to be very strong due to limited amount of generic (non-platform specific) information to feed the pool, this may strengthen key derivation on some devices that are not configured to provide strong random numbers through os_get_random() (e.g., /dev/urandom on Linux/BSD). This new mechanism is not supposed to replace proper OS provided random number generation mechanism. The OS mechanism needs to be initialized properly (e.g., hw random number generator, maintaining entropy pool over reboots, etc.) for any of the security assumptions to hold. If the os_get_random() is known to provide strong ramdom data (e.g., on Linux/BSD, the board in question is known to have reliable source of random data from /dev/urandom), the internal hostapd random pool can be disabled. This will save some in binary size and CPU use. However, this should only be considered for builds that are known to be used on devices that meet the requirements described above. The internal pool is disabled by adding CONFIG_NO_RANDOM_POOL=y to the .config file.
2010-11-24 00:29:40 +01:00
#include "crypto/random.h"
P2P: Add group notification from (re)association request
2010-07-18 23:30:25 +02:00
#include "p2p/p2p.h"
WPS 2.0: Validate WPS attributes in management frames and WSC messages If CONFIG_WPS_STRICT is set, validate WPS IE(s) in management frames and reject the frames if any of the mandatory attributes is missing or if an included attribute uses an invalid value. In addition, verify that all mandatory attributes are included and have valid values in the WSC messages.
2010-05-26 16:16:14 +02:00
#include "wps/wps.h"
Rename some src/ap files to avoid duplicate file names Doxygen and some build tools may get a bit confused about same file name being used in different directories. Clean this up a bit by renaming some of the duplicated file names in src/ap.
2009-12-25 23:05:40 +01:00
#include "hostapd.h"
#include "ieee802_11.h"
#include "sta_info.h"
#include "accounting.h"
#include "tkip_countermeasures.h"
#include "ieee802_1x.h"
#include "wpa_auth.h"
#include "wps_hostapd.h"
hostapd_driver_ops reduction set_sta_vlan, get_inact_sec, sta_deauth, sta_disassoc, and sta_remove to use inline functions instead of extra abstraction.
2010-11-24 14:36:02 +01:00
#include "ap_drv_ops.h"
Remove ap_config.h dependency from driver_i.h This adds explicit #include line for ap_config.h into the src/ap/*.c files that actually use the definitions from there.
2009-12-25 23:12:25 +01:00
#include "ap_config.h"
Moved driver callback functions from hostapd.c to a new file
2009-01-09 16:27:03 +01:00
int hostapd_notif_assoc(struct hostapd_data *hapd, const u8 *addr,
Clean up IE processing in hostapd_notif_assoc()
2011-10-16 16:49:02 +02:00
const u8 *req_ies, size_t req_ies_len, int reassoc)
Moved driver callback functions from hostapd.c to a new file
2009-01-09 16:27:03 +01:00
{
struct sta_info *sta;
int new_assoc, res;
Allow hostapd_notif_assoc() to be called with all IEs This makes the call simpler for driver wrappers since there is no need to parse the IEs anymore before indicating association. In addition, this allows association processing to be extended to use other IEs in the future.
2010-04-03 20:03:13 +02:00
struct ieee802_11_elems elems;
Clean up IE processing in hostapd_notif_assoc()
2011-10-16 16:49:02 +02:00
const u8 *ie;
size_t ielen;
Use a common error handler in hostapd_notif_assoc()
2011-10-16 16:57:27 +02:00
u16 reason = WLAN_REASON_UNSPECIFIED;
Moved driver callback functions from hostapd.c to a new file
2009-01-09 16:27:03 +01:00
Avoid hostapd segfault on invalid driver association event Running hostapd and wpa_supplicant on the same interface at the same time is not expected to work, but it should not cause hostapd to crash. Ignore station mode association events (no addr field) to avoid this.
2010-04-07 09:01:49 +02:00
if (addr == NULL) {
/*
* This could potentially happen with unexpected event from the
* driver wrapper. This was seen at least in one case where the
* driver ended up being set to station mode while hostapd was
* running, so better make sure we stop processing such an
* event here.
*/
wpa_printf(MSG_DEBUG, "hostapd_notif_assoc: Skip event with "
"no address");
return -1;
}
Maintain internal entropy pool for augmenting random number generation By default, make hostapd and wpa_supplicant maintain an internal entropy pool that is fed with following information: hostapd: - Probe Request frames (timing, RSSI) - Association events (timing) - SNonce from Supplicants wpa_supplicant: - Scan results (timing, signal/noise) - Association events (timing) The internal pool is used to augment the random numbers generated with the OS mechanism (os_get_random()). While the internal implementation is not expected to be very strong due to limited amount of generic (non-platform specific) information to feed the pool, this may strengthen key derivation on some devices that are not configured to provide strong random numbers through os_get_random() (e.g., /dev/urandom on Linux/BSD). This new mechanism is not supposed to replace proper OS provided random number generation mechanism. The OS mechanism needs to be initialized properly (e.g., hw random number generator, maintaining entropy pool over reboots, etc.) for any of the security assumptions to hold. If the os_get_random() is known to provide strong ramdom data (e.g., on Linux/BSD, the board in question is known to have reliable source of random data from /dev/urandom), the internal hostapd random pool can be disabled. This will save some in binary size and CPU use. However, this should only be considered for builds that are known to be used on devices that meet the requirements described above. The internal pool is disabled by adding CONFIG_NO_RANDOM_POOL=y to the .config file.
2010-11-24 00:29:40 +01:00
random_add_randomness(addr, ETH_ALEN);
Avoid hostapd segfault on invalid driver association event Running hostapd and wpa_supplicant on the same interface at the same time is not expected to work, but it should not cause hostapd to crash. Ignore station mode association events (no addr field) to avoid this.
2010-04-07 09:01:49 +02:00
Moved driver callback functions from hostapd.c to a new file
2009-01-09 16:27:03 +01:00
hostapd_logger(hapd, addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_INFO, "associated");
Clean up IE processing in hostapd_notif_assoc()
2011-10-16 16:49:02 +02:00
ieee802_11_parse_elems(req_ies, req_ies_len, &elems, 0);
Allow hostapd_notif_assoc() to be called with all IEs This makes the call simpler for driver wrappers since there is no need to parse the IEs anymore before indicating association. In addition, this allows association processing to be extended to use other IEs in the future.
2010-04-03 20:03:13 +02:00
if (elems.wps_ie) {
ie = elems.wps_ie - 2;
ielen = elems.wps_ie_len + 2;
wpa_printf(MSG_DEBUG, "STA included WPS IE in (Re)AssocReq");
} else if (elems.rsn_ie) {
ie = elems.rsn_ie - 2;
ielen = elems.rsn_ie_len + 2;
wpa_printf(MSG_DEBUG, "STA included RSN IE in (Re)AssocReq");
} else if (elems.wpa_ie) {
ie = elems.wpa_ie - 2;
ielen = elems.wpa_ie_len + 2;
wpa_printf(MSG_DEBUG, "STA included WPA IE in (Re)AssocReq");
} else {
ie = NULL;
ielen = 0;
wpa_printf(MSG_DEBUG, "STA did not include WPS/RSN/WPA IE in "
"(Re)AssocReq");
}
Moved driver callback functions from hostapd.c to a new file
2009-01-09 16:27:03 +01:00
sta = ap_get_sta(hapd, addr);
if (sta) {
accounting_sta_stop(hapd, sta);
AP: Reset STA timeout_next on driver-based-SME association The next ap_handle_timer action was already cleared when association is handled with user space -based SME. However, this step was missing from the driver callback for indicating new association. This could result in the first ap_handle_timer timeout on the new association removing the station unexpectedly. Fix this by resetting the timeout_next in hostapd_notif_assoc(). Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com> intended-for: hostap-1
2012-04-11 13:06:50 +02:00
/*
* Make sure that the previously registered inactivity timer
* will not remove the STA immediately.
*/
sta->timeout_next = STA_NULLFUNC;
Moved driver callback functions from hostapd.c to a new file
2009-01-09 16:27:03 +01:00
} else {
sta = ap_sta_add(hapd, addr);
Force driver to disassociate STA if no room for the STA entry When hostapd (or wpa_supplicant AP mode) limits the maximum number of STA entries with a driver that implements SME, the driver needs to be notified of the failed STA addition. Disassociate the STA if the driver notifies of an association that would go beyond the maximum number of STAs. Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-05-28 06:21:37 +02:00
if (sta == NULL) {
hostapd_drv_sta_disassoc(hapd, addr,
WLAN_REASON_DISASSOC_AP_BUSY);
Moved driver callback functions from hostapd.c to a new file
2009-01-09 16:27:03 +01:00
return -1;
Force driver to disassociate STA if no room for the STA entry When hostapd (or wpa_supplicant AP mode) limits the maximum number of STA entries with a driver that implements SME, the driver needs to be notified of the failed STA addition. Disassociate the STA if the driver notifies of an association that would go beyond the maximum number of STAs. Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
2012-05-28 06:21:37 +02:00
}
Moved driver callback functions from hostapd.c to a new file
2009-01-09 16:27:03 +01:00
}
WPS: Wait for EAPOL-Start unless WPS 2.0 station as workaround Extend the code that waits for the station to send EAPOL-Start before initiating EAPOL authenticator operations to cover the case where the station includes WPS IE in (Re)Association Request frame if that IE does not include support for WPS 2.0. While this should not really be needed, this may help with some deployed WPS 1.0 stations that do not support EAPOL operations correctly and may get confused of the EAP-Request/Identity packets that would show up twice if EAPOL-Start is transmitted.
2011-08-28 18:16:59 +02:00
sta->flags &= ~(WLAN_STA_WPS | WLAN_STA_MAYBE_WPS | WLAN_STA_WPS2);
Moved driver callback functions from hostapd.c to a new file
2009-01-09 16:27:03 +01:00
P2P: Save a copy of P2P IE(s) data from (Re)Association Request
2010-07-18 23:30:25 +02:00
#ifdef CONFIG_P2P
if (elems.p2p) {
wpabuf_free(sta->p2p_ie);
Clean up IE processing in hostapd_notif_assoc()
2011-10-16 16:49:02 +02:00
sta->p2p_ie = ieee802_11_vendor_ie_concat(req_ies, req_ies_len,
P2P: Save a copy of P2P IE(s) data from (Re)Association Request
2010-07-18 23:30:25 +02:00
P2P_IE_VENDOR_TYPE);
}
#endif /* CONFIG_P2P */
Moved driver callback functions from hostapd.c to a new file
2009-01-09 16:27:03 +01:00
if (hapd->conf->wpa) {
if (ie == NULL || ielen == 0) {
Fix AP build without CONFIG_WPS=y Make the WPS processing of (Re)Association Request frame IEs conditional on WPS support. This fixes a build issue with wps_is_20() not being defined and makes the non-WPS build a bit smaller.
2011-09-12 21:23:45 +02:00
#ifdef CONFIG_WPS
Moved driver callback functions from hostapd.c to a new file
2009-01-09 16:27:03 +01:00
if (hapd->conf->wps_state) {
wpa_printf(MSG_DEBUG, "STA did not include "
"WPA/RSN IE in (Re)Association "
"Request - possible WPS use");
sta->flags |= WLAN_STA_MAYBE_WPS;
goto skip_wpa_check;
}
Fix AP build without CONFIG_WPS=y Make the WPS processing of (Re)Association Request frame IEs conditional on WPS support. This fixes a build issue with wps_is_20() not being defined and makes the non-WPS build a bit smaller.
2011-09-12 21:23:45 +02:00
#endif /* CONFIG_WPS */
Moved driver callback functions from hostapd.c to a new file
2009-01-09 16:27:03 +01:00
wpa_printf(MSG_DEBUG, "No WPA/RSN IE from STA");
return -1;
}
Fix AP build without CONFIG_WPS=y Make the WPS processing of (Re)Association Request frame IEs conditional on WPS support. This fixes a build issue with wps_is_20() not being defined and makes the non-WPS build a bit smaller.
2011-09-12 21:23:45 +02:00
#ifdef CONFIG_WPS
Moved driver callback functions from hostapd.c to a new file
2009-01-09 16:27:03 +01:00
if (hapd->conf->wps_state && ie[0] == 0xdd && ie[1] >= 4 &&
os_memcmp(ie + 2, "\x00\x50\xf2\x04", 4) == 0) {
WPS: Wait for EAPOL-Start unless WPS 2.0 station as workaround Extend the code that waits for the station to send EAPOL-Start before initiating EAPOL authenticator operations to cover the case where the station includes WPS IE in (Re)Association Request frame if that IE does not include support for WPS 2.0. While this should not really be needed, this may help with some deployed WPS 1.0 stations that do not support EAPOL operations correctly and may get confused of the EAP-Request/Identity packets that would show up twice if EAPOL-Start is transmitted.
2011-08-28 18:16:59 +02:00
struct wpabuf *wps;
Moved driver callback functions from hostapd.c to a new file
2009-01-09 16:27:03 +01:00
sta->flags |= WLAN_STA_WPS;
WPS: Wait for EAPOL-Start unless WPS 2.0 station as workaround Extend the code that waits for the station to send EAPOL-Start before initiating EAPOL authenticator operations to cover the case where the station includes WPS IE in (Re)Association Request frame if that IE does not include support for WPS 2.0. While this should not really be needed, this may help with some deployed WPS 1.0 stations that do not support EAPOL operations correctly and may get confused of the EAP-Request/Identity packets that would show up twice if EAPOL-Start is transmitted.
2011-08-28 18:16:59 +02:00
wps = ieee802_11_vendor_ie_concat(ie, ielen,
WPS_IE_VENDOR_TYPE);
if (wps) {
if (wps_is_20(wps)) {
wpa_printf(MSG_DEBUG, "WPS: STA "
"supports WPS 2.0");
sta->flags |= WLAN_STA_WPS2;
}
wpabuf_free(wps);
}
Moved driver callback functions from hostapd.c to a new file
2009-01-09 16:27:03 +01:00
goto skip_wpa_check;
}
Fix AP build without CONFIG_WPS=y Make the WPS processing of (Re)Association Request frame IEs conditional on WPS support. This fixes a build issue with wps_is_20() not being defined and makes the non-WPS build a bit smaller.
2011-09-12 21:23:45 +02:00
#endif /* CONFIG_WPS */
Moved driver callback functions from hostapd.c to a new file
2009-01-09 16:27:03 +01:00
if (sta->wpa_sm == NULL)
sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth,
sta->addr);
if (sta->wpa_sm == NULL) {
wpa_printf(MSG_ERROR, "Failed to initialize WPA state "
"machine");
return -1;
}
res = wpa_validate_wpa_ie(hapd->wpa_auth, sta->wpa_sm,
ie, ielen, NULL, 0);
if (res != WPA_IE_OK) {
wpa_printf(MSG_DEBUG, "WPA/RSN information element "
"rejected? (res %u)", res);
wpa_hexdump(MSG_DEBUG, "IE", ie, ielen);
Disassociate STA if it associated with invalid/missing WPA/RSN IE When using drivers that process management frames internally (e.g., madwifi, atheros, bsd), the driver may accept association with IEs that do not match the security policy. Instead of silently leaving the station associated, explicitly disassociate it to clear the driver entry immediately.
2009-11-11 16:33:55 +01:00
if (res == WPA_INVALID_GROUP)
Use a common error handler in hostapd_notif_assoc()
2011-10-16 16:57:27 +02:00
reason = WLAN_REASON_GROUP_CIPHER_NOT_VALID;
Disassociate STA if it associated with invalid/missing WPA/RSN IE When using drivers that process management frames internally (e.g., madwifi, atheros, bsd), the driver may accept association with IEs that do not match the security policy. Instead of silently leaving the station associated, explicitly disassociate it to clear the driver entry immediately.
2009-11-11 16:33:55 +01:00
else if (res == WPA_INVALID_PAIRWISE)
Use a common error handler in hostapd_notif_assoc()
2011-10-16 16:57:27 +02:00
reason = WLAN_REASON_PAIRWISE_CIPHER_NOT_VALID;
Disassociate STA if it associated with invalid/missing WPA/RSN IE When using drivers that process management frames internally (e.g., madwifi, atheros, bsd), the driver may accept association with IEs that do not match the security policy. Instead of silently leaving the station associated, explicitly disassociate it to clear the driver entry immediately.
2009-11-11 16:33:55 +01:00
else if (res == WPA_INVALID_AKMP)
Use a common error handler in hostapd_notif_assoc()
2011-10-16 16:57:27 +02:00
reason = WLAN_REASON_AKMP_NOT_VALID;
Disassociate STA if it associated with invalid/missing WPA/RSN IE When using drivers that process management frames internally (e.g., madwifi, atheros, bsd), the driver may accept association with IEs that do not match the security policy. Instead of silently leaving the station associated, explicitly disassociate it to clear the driver entry immediately.
2009-11-11 16:33:55 +01:00
#ifdef CONFIG_IEEE80211W
else if (res == WPA_MGMT_FRAME_PROTECTION_VIOLATION)
Use a common error handler in hostapd_notif_assoc()
2011-10-16 16:57:27 +02:00
reason = WLAN_REASON_INVALID_IE;
Disassociate STA if it associated with invalid/missing WPA/RSN IE When using drivers that process management frames internally (e.g., madwifi, atheros, bsd), the driver may accept association with IEs that do not match the security policy. Instead of silently leaving the station associated, explicitly disassociate it to clear the driver entry immediately.
2009-11-11 16:33:55 +01:00
else if (res == WPA_INVALID_MGMT_GROUP_CIPHER)
Use a common error handler in hostapd_notif_assoc()
2011-10-16 16:57:27 +02:00
reason = WLAN_REASON_GROUP_CIPHER_NOT_VALID;
Disassociate STA if it associated with invalid/missing WPA/RSN IE When using drivers that process management frames internally (e.g., madwifi, atheros, bsd), the driver may accept association with IEs that do not match the security policy. Instead of silently leaving the station associated, explicitly disassociate it to clear the driver entry immediately.
2009-11-11 16:33:55 +01:00
#endif /* CONFIG_IEEE80211W */
else
Use a common error handler in hostapd_notif_assoc()
2011-10-16 16:57:27 +02:00
reason = WLAN_REASON_INVALID_IE;
goto fail;
Moved driver callback functions from hostapd.c to a new file
2009-01-09 16:27:03 +01:00
}
Fix WPS in non-WPA modes with drivers that implement MLME Need to set WLAN_STA_WPS and WLAN_STA_MAYBE_WPS flags even if WPA is not enabled. This allows open and static WEP modes to initiate WPS negotiation with madwifi-like drivers.
2009-02-23 19:57:07 +01:00
} else if (hapd->conf->wps_state) {
Fix AP build without CONFIG_WPS=y Make the WPS processing of (Re)Association Request frame IEs conditional on WPS support. This fixes a build issue with wps_is_20() not being defined and makes the non-WPS build a bit smaller.
2011-09-12 21:23:45 +02:00
#ifdef CONFIG_WPS
WPS: Wait for EAPOL-Start unless WPS 2.0 station as workaround Extend the code that waits for the station to send EAPOL-Start before initiating EAPOL authenticator operations to cover the case where the station includes WPS IE in (Re)Association Request frame if that IE does not include support for WPS 2.0. While this should not really be needed, this may help with some deployed WPS 1.0 stations that do not support EAPOL operations correctly and may get confused of the EAP-Request/Identity packets that would show up twice if EAPOL-Start is transmitted.
2011-08-28 18:16:59 +02:00
struct wpabuf *wps;
Clean up IE processing in hostapd_notif_assoc()
2011-10-16 16:49:02 +02:00
if (req_ies)
wps = ieee802_11_vendor_ie_concat(req_ies, req_ies_len,
WPS: Fix WPS IE processing Commit 17f6b9005641c9c44f55cda825b3a170ffa8ff04 moved the concatenation of WPS IEs, but did not include the validation that the IE buffer is not NULL. In addition, the concatenation needs to be done based on the full IE buffer instead of the parsed pointer that includes only a single WPS IE.
2011-10-16 15:41:51 +02:00
WPS_IE_VENDOR_TYPE);
else
wps = NULL;
WPS 2.0: Validate WPS attributes in management frames and WSC messages If CONFIG_WPS_STRICT is set, validate WPS IE(s) in management frames and reject the frames if any of the mandatory attributes is missing or if an included attribute uses an invalid value. In addition, verify that all mandatory attributes are included and have valid values in the WSC messages.
2010-05-26 16:16:14 +02:00
#ifdef CONFIG_WPS_STRICT
WPS: Fix WPS IE processing Commit 17f6b9005641c9c44f55cda825b3a170ffa8ff04 moved the concatenation of WPS IEs, but did not include the validation that the IE buffer is not NULL. In addition, the concatenation needs to be done based on the full IE buffer instead of the parsed pointer that includes only a single WPS IE.
2011-10-16 15:41:51 +02:00
if (wps && wps_validate_assoc_req(wps) < 0) {
Use a common error handler in hostapd_notif_assoc()
2011-10-16 16:57:27 +02:00
reason = WLAN_REASON_INVALID_IE;
WPS: Fix WPS IE processing Commit 17f6b9005641c9c44f55cda825b3a170ffa8ff04 moved the concatenation of WPS IEs, but did not include the validation that the IE buffer is not NULL. In addition, the concatenation needs to be done based on the full IE buffer instead of the parsed pointer that includes only a single WPS IE.
2011-10-16 15:41:51 +02:00
wpabuf_free(wps);
Use a common error handler in hostapd_notif_assoc()
2011-10-16 16:57:27 +02:00
goto fail;
WPS 2.0: Validate WPS attributes in management frames and WSC messages If CONFIG_WPS_STRICT is set, validate WPS IE(s) in management frames and reject the frames if any of the mandatory attributes is missing or if an included attribute uses an invalid value. In addition, verify that all mandatory attributes are included and have valid values in the WSC messages.
2010-05-26 16:16:14 +02:00
}
#endif /* CONFIG_WPS_STRICT */
WPS: Fix WPS IE processing Commit 17f6b9005641c9c44f55cda825b3a170ffa8ff04 moved the concatenation of WPS IEs, but did not include the validation that the IE buffer is not NULL. In addition, the concatenation needs to be done based on the full IE buffer instead of the parsed pointer that includes only a single WPS IE.
2011-10-16 15:41:51 +02:00
if (wps) {
Fix WPS in non-WPA modes with drivers that implement MLME Need to set WLAN_STA_WPS and WLAN_STA_MAYBE_WPS flags even if WPA is not enabled. This allows open and static WEP modes to initiate WPS negotiation with madwifi-like drivers.
2009-02-23 19:57:07 +01:00
sta->flags |= WLAN_STA_WPS;
WPS: Fix WPS IE processing Commit 17f6b9005641c9c44f55cda825b3a170ffa8ff04 moved the concatenation of WPS IEs, but did not include the validation that the IE buffer is not NULL. In addition, the concatenation needs to be done based on the full IE buffer instead of the parsed pointer that includes only a single WPS IE.
2011-10-16 15:41:51 +02:00
if (wps_is_20(wps)) {
WPS: Wait for EAPOL-Start unless WPS 2.0 station as workaround Extend the code that waits for the station to send EAPOL-Start before initiating EAPOL authenticator operations to cover the case where the station includes WPS IE in (Re)Association Request frame if that IE does not include support for WPS 2.0. While this should not really be needed, this may help with some deployed WPS 1.0 stations that do not support EAPOL operations correctly and may get confused of the EAP-Request/Identity packets that would show up twice if EAPOL-Start is transmitted.
2011-08-28 18:16:59 +02:00
wpa_printf(MSG_DEBUG, "WPS: STA supports "
"WPS 2.0");
sta->flags |= WLAN_STA_WPS2;
}
Fix WPS in non-WPA modes with drivers that implement MLME Need to set WLAN_STA_WPS and WLAN_STA_MAYBE_WPS flags even if WPA is not enabled. This allows open and static WEP modes to initiate WPS negotiation with madwifi-like drivers.
2009-02-23 19:57:07 +01:00
} else
sta->flags |= WLAN_STA_MAYBE_WPS;
WPS: Wait for EAPOL-Start unless WPS 2.0 station as workaround Extend the code that waits for the station to send EAPOL-Start before initiating EAPOL authenticator operations to cover the case where the station includes WPS IE in (Re)Association Request frame if that IE does not include support for WPS 2.0. While this should not really be needed, this may help with some deployed WPS 1.0 stations that do not support EAPOL operations correctly and may get confused of the EAP-Request/Identity packets that would show up twice if EAPOL-Start is transmitted.
2011-08-28 18:16:59 +02:00
wpabuf_free(wps);
Fix AP build without CONFIG_WPS=y Make the WPS processing of (Re)Association Request frame IEs conditional on WPS support. This fixes a build issue with wps_is_20() not being defined and makes the non-WPS build a bit smaller.
2011-09-12 21:23:45 +02:00
#endif /* CONFIG_WPS */
Moved driver callback functions from hostapd.c to a new file
2009-01-09 16:27:03 +01:00
}
Fix AP build without CONFIG_WPS=y Make the WPS processing of (Re)Association Request frame IEs conditional on WPS support. This fixes a build issue with wps_is_20() not being defined and makes the non-WPS build a bit smaller.
2011-09-12 21:23:45 +02:00
#ifdef CONFIG_WPS
Moved driver callback functions from hostapd.c to a new file
2009-01-09 16:27:03 +01:00
skip_wpa_check:
Fix AP build without CONFIG_WPS=y Make the WPS processing of (Re)Association Request frame IEs conditional on WPS support. This fixes a build issue with wps_is_20() not being defined and makes the non-WPS build a bit smaller.
2011-09-12 21:23:45 +02:00
#endif /* CONFIG_WPS */
Moved driver callback functions from hostapd.c to a new file
2009-01-09 16:27:03 +01:00
new_assoc = (sta->flags & WLAN_STA_ASSOC) == 0;
sta->flags |= WLAN_STA_AUTH | WLAN_STA_ASSOC;
wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC);
hostapd_new_assoc_sta(hapd, sta, !new_assoc);
ieee802_1x_notify_port_enabled(sta->eapol_sm, 1);
P2P: Add group notification from (re)association request
2010-07-18 23:30:25 +02:00
#ifdef CONFIG_P2P
P2P: Verify that assoc req IEs are available for group update Do not call p2p_group_notif_assoc() if the driver did not return IEs from the association request. Signed-hostap: Jouni Malinen <j@w1.fi>
2011-11-13 21:33:32 +01:00
if (req_ies) {
p2p_group_notif_assoc(hapd->p2p_group, sta->addr,
req_ies, req_ies_len);
}
P2P: Add group notification from (re)association request
2010-07-18 23:30:25 +02:00
#endif /* CONFIG_P2P */
Moved driver callback functions from hostapd.c to a new file
2009-01-09 16:27:03 +01:00
return 0;
Use a common error handler in hostapd_notif_assoc()
2011-10-16 16:57:27 +02:00
fail:
hostapd_drv_sta_disassoc(hapd, sta->addr, reason);
ap_free_sta(hapd, sta);
return -1;
Moved driver callback functions from hostapd.c to a new file
2009-01-09 16:27:03 +01:00
}
void hostapd_notif_disassoc(struct hostapd_data *hapd, const u8 *addr)
{
struct sta_info *sta;
hostapd: Avoid crashing on station mode disassoc event Some driver wrappers may end up indicating a disassociation or deauthentication event without the address of the station, e.g., based on a previous non-AP mode event. Avoid crashing hostapd by verifying that the require address parameter is available in the event before processing it.
2010-10-22 16:43:23 +02:00
if (addr == NULL) {
/*
* This could potentially happen with unexpected event from the
* driver wrapper. This was seen at least in one case where the
* driver ended up reporting a station mode event while hostapd
* was running, so better make sure we stop processing such an
* event here.
*/
wpa_printf(MSG_DEBUG, "hostapd_notif_disassoc: Skip event "
"with no address");
hostapd: Fix compiler warning Commit 83e843e830112a810ef6a1f6c08dbe8200e47f0f copied a workaround without updating the return value to match with the void function.
2010-10-25 12:38:06 +02:00
return;
hostapd: Avoid crashing on station mode disassoc event Some driver wrappers may end up indicating a disassociation or deauthentication event without the address of the station, e.g., based on a previous non-AP mode event. Avoid crashing hostapd by verifying that the require address parameter is available in the event before processing it.
2010-10-22 16:43:23 +02:00
}
Moved driver callback functions from hostapd.c to a new file
2009-01-09 16:27:03 +01:00
hostapd_logger(hapd, addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_INFO, "disassociated");
sta = ap_get_sta(hapd, addr);
if (sta == NULL) {
wpa_printf(MSG_DEBUG, "Disassociation notification for "
"unknown STA " MACSTR, MAC2STR(addr));
return;
}
Move AP events for STA connected/disconnected into one function Instead of trying to remember to add wpa_msg() calls for every possible path where a STA becomes authorized or unauthorized, use ap_sta_set_authorized() to send these events more consistently. Signed-hostap: Jouni Malinen <j@w1.fi>
2011-11-03 21:17:41 +01:00
ap_sta_set_authorized(hapd, sta, 0);
Moved driver callback functions from hostapd.c to a new file
2009-01-09 16:27:03 +01:00
sta->flags &= ~(WLAN_STA_AUTH | WLAN_STA_ASSOC);
wpa_auth_sm_event(sta->wpa_sm, WPA_DISASSOC);
sta->acct_terminate_cause = RADIUS_ACCT_TERMINATE_CAUSE_USER_REQUEST;
ieee802_1x_notify_port_enabled(sta->eapol_sm, 0);
ap_free_sta(hapd, sta);
}
Allow AP mode to disconnect STAs based on low ACK condition The nl80211 driver can report low ACK condition (in fact it reports complete loss right now only). Use that, along with a config option, to disconnect stations when the data connection is not working properly, e.g., due to the STA having went outside the range of the AP. This is disabled by default and can be enabled with disassoc_low_ack=1 in hostapd or wpa_supplicant configuration file. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2010-12-28 16:15:01 +01:00
void hostapd_event_sta_low_ack(struct hostapd_data *hapd, const u8 *addr)
{
struct sta_info *sta = ap_get_sta(hapd, addr);
if (!sta || !hapd->conf->disassoc_low_ack)
return;
hostapd_logger(hapd, addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_INFO, "disconnected due to excessive "
"missing ACKs");
hostapd_drv_sta_disassoc(hapd, addr, WLAN_REASON_DISASSOC_LOW_ACK);
if (sta)
ap_sta_disassociate(hapd, sta, WLAN_REASON_DISASSOC_LOW_ACK);
}
P2P: Filter Probe Request frames based on DA and BSSID in Listen state Only accept Probe Request frames that have a Wildcard BSSID and a destination address that matches with our P2P Device Address or is the broadcast address per P2P specification 3.1.2.1.1.
2011-07-15 19:25:53 +02:00
int hostapd_probe_req_rx(struct hostapd_data *hapd, const u8 *sa, const u8 *da,
Pass signal strength through, fix units The signal strength is currently never used as the only driver reporting it is nl80211 which uses IEEE80211_RADIOTAP_DB_ANTSIGNAL which is never populated by the kernel. The kernel will (soon) populate IEEE80211_RADIOTAP_DBM_ANTSIGNAL instead though, so use that. Also, since it was never really populated, we can redefine the signal field to be in dBm units only. My next patch will also require knowing the signal strength of probe requests throughout the code (where available), so add it to the necessary APIs. Signed-hostap: Johannes Berg <johannes.berg@intel.com>
2012-04-01 17:48:12 +02:00
const u8 *bssid, const u8 *ie, size_t ie_len,
int ssi_signal)
wpa_s AP: Deliver EVENT_RX_PROBE_REQ events to AP processing This is needed to allows WPS PBC session overlap detection to work with drivers that process Probe Request frames internally. This code is is run in hostapd, but the wpa_supplicant AP mode did not have call to the hostapd_probe_req_rx() function even though it registered handlers for hostapd Probe Request RX callbacks.
2011-02-08 13:32:35 +01:00
{
size_t i;
int ret = 0;
Add sanity checks to EVENT_RX_PROBE_REQ event data Both the SA and IEs from the received Probe Request frames must be included and the Probe Request RX callback functions may assume that these are not NULL.
2011-04-14 01:39:25 +02:00
if (sa == NULL || ie == NULL)
return -1;
random_add_randomness(sa, ETH_ALEN);
wpa_s AP: Deliver EVENT_RX_PROBE_REQ events to AP processing This is needed to allows WPS PBC session overlap detection to work with drivers that process Probe Request frames internally. This code is is run in hostapd, but the wpa_supplicant AP mode did not have call to the hostapd_probe_req_rx() function even though it registered handlers for hostapd Probe Request RX callbacks.
2011-02-08 13:32:35 +01:00
for (i = 0; hapd->probereq_cb && i < hapd->num_probereq_cb; i++) {
if (hapd->probereq_cb[i].cb(hapd->probereq_cb[i].ctx,
Pass signal strength through, fix units The signal strength is currently never used as the only driver reporting it is nl80211 which uses IEEE80211_RADIOTAP_DB_ANTSIGNAL which is never populated by the kernel. The kernel will (soon) populate IEEE80211_RADIOTAP_DBM_ANTSIGNAL instead though, so use that. Also, since it was never really populated, we can redefine the signal field to be in dBm units only. My next patch will also require knowing the signal strength of probe requests throughout the code (where available), so add it to the necessary APIs. Signed-hostap: Johannes Berg <johannes.berg@intel.com>
2012-04-01 17:48:12 +02:00
sa, da, bssid, ie, ie_len,
ssi_signal) > 0) {
wpa_s AP: Deliver EVENT_RX_PROBE_REQ events to AP processing This is needed to allows WPS PBC session overlap detection to work with drivers that process Probe Request frames internally. This code is is run in hostapd, but the wpa_supplicant AP mode did not have call to the hostapd_probe_req_rx() function even though it registered handlers for hostapd Probe Request RX callbacks.
2011-02-08 13:32:35 +01:00
ret = 1;
break;
}
}
return ret;
}
Use generic driver events for TX status and RX reporting Replace driver wrapper calls to hostapd_tx_status(), hostapd_rx_from_unknown_sta(), hostapd_mgmt_rx(), and hostapd_mgmt_tx_cb() with new generic driver events EVENT_TX_STATUS, EVENT_RX_FROM_UNKNOWN, and EVENT_RX_MGMT. This cleans up lot of the driver wrapper code to be less dependent on whether it is being used within wpa_supplicant AP mode or hostapd.
2009-12-13 22:05:39 +01:00
#ifdef HOSTAPD
Replace NEED_MLME with NEED_AP_MLME This makes it clearer that it's about the AP, not client-side MLME, even when built into the client (wpa_supplicant).
2009-08-14 19:01:41 +02:00
#ifdef NEED_AP_MLME
Use generic driver events for TX status and RX reporting Replace driver wrapper calls to hostapd_tx_status(), hostapd_rx_from_unknown_sta(), hostapd_mgmt_rx(), and hostapd_mgmt_tx_cb() with new generic driver events EVENT_TX_STATUS, EVENT_RX_FROM_UNKNOWN, and EVENT_RX_MGMT. This cleans up lot of the driver wrapper code to be less dependent on whether it is being used within wpa_supplicant AP mode or hostapd.
2009-12-13 22:05:39 +01:00
#define HAPD_BROADCAST ((struct hostapd_data *) -1)
static struct hostapd_data * get_hapd_bssid(struct hostapd_iface *iface,
const u8 *bssid)
{
size_t i;
if (bssid == NULL)
return NULL;
if (bssid[0] == 0xff && bssid[1] == 0xff && bssid[2] == 0xff &&
bssid[3] == 0xff && bssid[4] == 0xff && bssid[5] == 0xff)
return HAPD_BROADCAST;
for (i = 0; i < iface->num_bss; i++) {
if (os_memcmp(bssid, iface->bss[i]->own_addr, ETH_ALEN) == 0)
return iface->bss[i];
}
return NULL;
}
static void hostapd_rx_from_unknown_sta(struct hostapd_data *hapd,
AP: Pass only bssid/addr/wds to EVENT_RX_FROM_UNKNOWN
2011-10-20 20:51:32 +02:00
const u8 *bssid, const u8 *addr,
int wds)
Use generic driver events for TX status and RX reporting Replace driver wrapper calls to hostapd_tx_status(), hostapd_rx_from_unknown_sta(), hostapd_mgmt_rx(), and hostapd_mgmt_tx_cb() with new generic driver events EVENT_TX_STATUS, EVENT_RX_FROM_UNKNOWN, and EVENT_RX_MGMT. This cleans up lot of the driver wrapper code to be less dependent on whether it is being used within wpa_supplicant AP mode or hostapd.
2009-12-13 22:05:39 +01:00
{
AP: Pass only bssid/addr/wds to EVENT_RX_FROM_UNKNOWN
2011-10-20 20:51:32 +02:00
hapd = get_hapd_bssid(hapd->iface, bssid);
Use generic driver events for TX status and RX reporting Replace driver wrapper calls to hostapd_tx_status(), hostapd_rx_from_unknown_sta(), hostapd_mgmt_rx(), and hostapd_mgmt_tx_cb() with new generic driver events EVENT_TX_STATUS, EVENT_RX_FROM_UNKNOWN, and EVENT_RX_MGMT. This cleans up lot of the driver wrapper code to be less dependent on whether it is being used within wpa_supplicant AP mode or hostapd.
2009-12-13 22:05:39 +01:00
if (hapd == NULL || hapd == HAPD_BROADCAST)
return;
AP: Pass only bssid/addr/wds to EVENT_RX_FROM_UNKNOWN
2011-10-20 20:51:32 +02:00
ieee802_11_rx_from_unknown(hapd, addr, wds);
Use generic driver events for TX status and RX reporting Replace driver wrapper calls to hostapd_tx_status(), hostapd_rx_from_unknown_sta(), hostapd_mgmt_rx(), and hostapd_mgmt_tx_cb() with new generic driver events EVENT_TX_STATUS, EVENT_RX_FROM_UNKNOWN, and EVENT_RX_MGMT. This cleans up lot of the driver wrapper code to be less dependent on whether it is being used within wpa_supplicant AP mode or hostapd.
2009-12-13 22:05:39 +01:00
}
Move struct hostapd_frame_info definition away from driver API This is internal data structure for hostapd/AP functionality and does not need to be defined in driver.h.
2010-01-03 11:37:02 +01:00
static void hostapd_mgmt_rx(struct hostapd_data *hapd, struct rx_mgmt *rx_mgmt)
Moved driver callback functions from hostapd.c to a new file
2009-01-09 16:27:03 +01:00
{
Move more multi-BSSID processing into drv_callbacks.c This simplifies driver wrapper operations and removes last direct struct hostapd_data dereferences from driver_nl80211.c. In addition, some of the TX callbacks are now fixed for secondary BSSes.
2009-04-17 12:29:29 +02:00
struct hostapd_iface *iface = hapd->iface;
Mark management frame processing functions to use const buffer
2009-12-13 22:25:30 +01:00
const struct ieee80211_hdr *hdr;
Move more multi-BSSID processing into drv_callbacks.c This simplifies driver wrapper operations and removes last direct struct hostapd_data dereferences from driver_nl80211.c. In addition, some of the TX callbacks are now fixed for secondary BSSes.
2009-04-17 12:29:29 +02:00
const u8 *bssid;
Move struct hostapd_frame_info definition away from driver API This is internal data structure for hostapd/AP functionality and does not need to be defined in driver.h.
2010-01-03 11:37:02 +01:00
struct hostapd_frame_info fi;
Move more multi-BSSID processing into drv_callbacks.c This simplifies driver wrapper operations and removes last direct struct hostapd_data dereferences from driver_nl80211.c. In addition, some of the TX callbacks are now fixed for secondary BSSes.
2009-04-17 12:29:29 +02:00
Move struct hostapd_frame_info definition away from driver API This is internal data structure for hostapd/AP functionality and does not need to be defined in driver.h.
2010-01-03 11:37:02 +01:00
hdr = (const struct ieee80211_hdr *) rx_mgmt->frame;
bssid = get_hdr_bssid(hdr, rx_mgmt->frame_len);
Move more multi-BSSID processing into drv_callbacks.c This simplifies driver wrapper operations and removes last direct struct hostapd_data dereferences from driver_nl80211.c. In addition, some of the TX callbacks are now fixed for secondary BSSes.
2009-04-17 12:29:29 +02:00
if (bssid == NULL)
return;
hapd = get_hapd_bssid(iface, bssid);
if (hapd == NULL) {
u16 fc;
fc = le_to_host16(hdr->frame_control);
/*
* Drop frames to unknown BSSIDs except for Beacon frames which
* could be used to update neighbor information.
*/
if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON)
hapd = iface->bss[0];
else
return;
}
Move struct hostapd_frame_info definition away from driver API This is internal data structure for hostapd/AP functionality and does not need to be defined in driver.h.
2010-01-03 11:37:02 +01:00
os_memset(&fi, 0, sizeof(fi));
fi.datarate = rx_mgmt->datarate;
fi.ssi_signal = rx_mgmt->ssi_signal;
Move more multi-BSSID processing into drv_callbacks.c This simplifies driver wrapper operations and removes last direct struct hostapd_data dereferences from driver_nl80211.c. In addition, some of the TX callbacks are now fixed for secondary BSSes.
2009-04-17 12:29:29 +02:00
if (hapd == HAPD_BROADCAST) {
size_t i;
for (i = 0; i < iface->num_bss; i++)
Move struct hostapd_frame_info definition away from driver API This is internal data structure for hostapd/AP functionality and does not need to be defined in driver.h.
2010-01-03 11:37:02 +01:00
ieee802_11_mgmt(iface->bss[i], rx_mgmt->frame,
rx_mgmt->frame_len, &fi);
Move more multi-BSSID processing into drv_callbacks.c This simplifies driver wrapper operations and removes last direct struct hostapd_data dereferences from driver_nl80211.c. In addition, some of the TX callbacks are now fixed for secondary BSSes.
2009-04-17 12:29:29 +02:00
} else
Move struct hostapd_frame_info definition away from driver API This is internal data structure for hostapd/AP functionality and does not need to be defined in driver.h.
2010-01-03 11:37:02 +01:00
ieee802_11_mgmt(hapd, rx_mgmt->frame, rx_mgmt->frame_len, &fi);
Maintain internal entropy pool for augmenting random number generation By default, make hostapd and wpa_supplicant maintain an internal entropy pool that is fed with following information: hostapd: - Probe Request frames (timing, RSSI) - Association events (timing) - SNonce from Supplicants wpa_supplicant: - Scan results (timing, signal/noise) - Association events (timing) The internal pool is used to augment the random numbers generated with the OS mechanism (os_get_random()). While the internal implementation is not expected to be very strong due to limited amount of generic (non-platform specific) information to feed the pool, this may strengthen key derivation on some devices that are not configured to provide strong random numbers through os_get_random() (e.g., /dev/urandom on Linux/BSD). This new mechanism is not supposed to replace proper OS provided random number generation mechanism. The OS mechanism needs to be initialized properly (e.g., hw random number generator, maintaining entropy pool over reboots, etc.) for any of the security assumptions to hold. If the os_get_random() is known to provide strong ramdom data (e.g., on Linux/BSD, the board in question is known to have reliable source of random data from /dev/urandom), the internal hostapd random pool can be disabled. This will save some in binary size and CPU use. However, this should only be considered for builds that are known to be used on devices that meet the requirements described above. The internal pool is disabled by adding CONFIG_NO_RANDOM_POOL=y to the .config file.
2010-11-24 00:29:40 +01:00
random_add_randomness(&fi, sizeof(fi));
Moved driver callback functions from hostapd.c to a new file
2009-01-09 16:27:03 +01:00
}
Add EVENT_RX_ACTION handler for hostapd This fixes an issue with SA Query Response frames not being processed anymore after wpa_supplicant started registering a handler for those. This handler registration is in generic driver_nl80211.c code, so hostapd uses it, too.
2011-06-21 19:55:46 +02:00
static void hostapd_rx_action(struct hostapd_data *hapd,
struct rx_action *rx_action)
{
struct rx_mgmt rx_mgmt;
u8 *buf;
struct ieee80211_hdr *hdr;
wpa_printf(MSG_DEBUG, "EVENT_RX_ACTION DA=" MACSTR " SA=" MACSTR
" BSSID=" MACSTR " category=%u",
MAC2STR(rx_action->da), MAC2STR(rx_action->sa),
MAC2STR(rx_action->bssid), rx_action->category);
wpa_hexdump(MSG_MSGDUMP, "Received action frame contents",
rx_action->data, rx_action->len);
buf = os_zalloc(24 + 1 + rx_action->len);
if (buf == NULL)
return;
hdr = (struct ieee80211_hdr *) buf;
hdr->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
WLAN_FC_STYPE_ACTION);
if (rx_action->category == WLAN_ACTION_SA_QUERY) {
/*
* Assume frame was protected; it would have been dropped if
* not.
*/
hdr->frame_control |= host_to_le16(WLAN_FC_ISWEP);
}
os_memcpy(hdr->addr1, rx_action->da, ETH_ALEN);
os_memcpy(hdr->addr2, rx_action->sa, ETH_ALEN);
os_memcpy(hdr->addr3, rx_action->bssid, ETH_ALEN);
buf[24] = rx_action->category;
os_memcpy(buf + 24 + 1, rx_action->data, rx_action->len);
os_memset(&rx_mgmt, 0, sizeof(rx_mgmt));
rx_mgmt.frame = buf;
rx_mgmt.frame_len = 24 + 1 + rx_action->len;
hostapd_mgmt_rx(hapd, &rx_mgmt);
os_free(buf);
}
Use generic driver events for TX status and RX reporting Replace driver wrapper calls to hostapd_tx_status(), hostapd_rx_from_unknown_sta(), hostapd_mgmt_rx(), and hostapd_mgmt_tx_cb() with new generic driver events EVENT_TX_STATUS, EVENT_RX_FROM_UNKNOWN, and EVENT_RX_MGMT. This cleans up lot of the driver wrapper code to be less dependent on whether it is being used within wpa_supplicant AP mode or hostapd.
2009-12-13 22:05:39 +01:00
static void hostapd_mgmt_tx_cb(struct hostapd_data *hapd, const u8 *buf,
size_t len, u16 stype, int ok)
Moved driver callback functions from hostapd.c to a new file
2009-01-09 16:27:03 +01:00
{
Move more multi-BSSID processing into drv_callbacks.c This simplifies driver wrapper operations and removes last direct struct hostapd_data dereferences from driver_nl80211.c. In addition, some of the TX callbacks are now fixed for secondary BSSes.
2009-04-17 12:29:29 +02:00
struct ieee80211_hdr *hdr;
hdr = (struct ieee80211_hdr *) buf;
hapd = get_hapd_bssid(hapd->iface, get_hdr_bssid(hdr, len));
if (hapd == NULL || hapd == HAPD_BROADCAST)
return;
Moved driver callback functions from hostapd.c to a new file
2009-01-09 16:27:03 +01:00
ieee802_11_mgmt_cb(hapd, buf, len, stype, ok);
}
nl80211: Fix EAPOL frame RX for secondary BSSes Need to figure out which BSS should process the frame based on the source address (STA/Supplicant MAC address).
2009-04-03 20:04:25 +02:00
Use generic driver events for TX status and RX reporting Replace driver wrapper calls to hostapd_tx_status(), hostapd_rx_from_unknown_sta(), hostapd_mgmt_rx(), and hostapd_mgmt_tx_cb() with new generic driver events EVENT_TX_STATUS, EVENT_RX_FROM_UNKNOWN, and EVENT_RX_MGMT. This cleans up lot of the driver wrapper code to be less dependent on whether it is being used within wpa_supplicant AP mode or hostapd.
2009-12-13 22:05:39 +01:00
#endif /* NEED_AP_MLME */
Clean up HT40 scan and share nl80211 scanning code Instead of adding a new driver_ops for fetching neighbor BSS data (that nl80211 driver interface had to scan during initialization), share the same scan operations that wpa_supplicant is using. This gets rid of duplicated scan code in driver_nl80211.c (and better yet, removes large part of old WEXT code). hostapd interface initialization is now completed in a callback, if needed, i.e., he_features channel/hw_mode selection can use as much time as needed. This can also help with radar detection in the future.
2009-04-16 15:22:40 +02:00
Use driver event, EVENT_EAPOL_RX, for EAPOL frame indication
2010-01-03 16:44:40 +01:00
static int hostapd_event_new_sta(struct hostapd_data *hapd, const u8 *addr)
{
struct sta_info *sta = ap_get_sta(hapd, addr);
if (sta)
return 0;
wpa_printf(MSG_DEBUG, "Data frame from unknown STA " MACSTR
" - adding a new STA", MAC2STR(addr));
sta = ap_sta_add(hapd, addr);
if (sta) {
hostapd_new_assoc_sta(hapd, sta, 0);
} else {
wpa_printf(MSG_DEBUG, "Failed to add STA entry for " MACSTR,
MAC2STR(addr));
return -1;
}
return 0;
}
static void hostapd_event_eapol_rx(struct hostapd_data *hapd, const u8 *src,
const u8 *data, size_t data_len)
{
struct hostapd_iface *iface = hapd->iface;
size_t j;
for (j = 0; j < iface->num_bss; j++) {
if (ap_get_sta(iface->bss[j], src)) {
hapd = iface->bss[j];
break;
}
}
ieee802_1x_receive(hapd, src, data, data_len);
}
Remove unnecessary wpa_event_type typedef
2010-01-03 12:10:12 +01:00
void wpa_supplicant_event(void *ctx, enum wpa_event_type event,
Clean up HT40 scan and share nl80211 scanning code Instead of adding a new driver_ops for fetching neighbor BSS data (that nl80211 driver interface had to scan during initialization), share the same scan operations that wpa_supplicant is using. This gets rid of duplicated scan code in driver_nl80211.c (and better yet, removes large part of old WEXT code). hostapd interface initialization is now completed in a callback, if needed, i.e., he_features channel/hw_mode selection can use as much time as needed. This can also help with radar detection in the future.
2009-04-16 15:22:40 +02:00
union wpa_event_data *data)
{
struct hostapd_data *hapd = ctx;
Lower RX_MGMT driver event debug level for Beacon frames This event can be very frequent in AP mode when Beacon frames from neighboring BSSes are delivered to user space. Drop the debug message priority from DEBUG to EXCESSIVE for Beacon frames. Signed-hostap: Jouni Malinen <j@w1.fi>
2011-12-18 20:48:25 +01:00
#ifndef CONFIG_NO_STDOUT_DEBUG
int level = MSG_DEBUG;
Clean up HT40 scan and share nl80211 scanning code Instead of adding a new driver_ops for fetching neighbor BSS data (that nl80211 driver interface had to scan during initialization), share the same scan operations that wpa_supplicant is using. This gets rid of duplicated scan code in driver_nl80211.c (and better yet, removes large part of old WEXT code). hostapd interface initialization is now completed in a callback, if needed, i.e., he_features channel/hw_mode selection can use as much time as needed. This can also help with radar detection in the future.
2009-04-16 15:22:40 +02:00
Lower RX_MGMT driver event debug level for Beacon frames This event can be very frequent in AP mode when Beacon frames from neighboring BSSes are delivered to user space. Drop the debug message priority from DEBUG to EXCESSIVE for Beacon frames. Signed-hostap: Jouni Malinen <j@w1.fi>
2011-12-18 20:48:25 +01:00
if (event == EVENT_RX_MGMT && data && data->rx_mgmt.frame &&
data->rx_mgmt.frame_len >= 24) {
const struct ieee80211_hdr *hdr;
u16 fc;
hdr = (const struct ieee80211_hdr *) data->rx_mgmt.frame;
fc = le_to_host16(hdr->frame_control);
if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON)
level = MSG_EXCESSIVE;
}
wpa_dbg(hapd->msg_ctx, level, "Event %s (%d) received",
hostapd: Show driver event names in debug log Signed-hostap: Jouni Malinen <j@w1.fi>
2011-12-03 10:46:47 +01:00
event_to_string(event), event);
Lower RX_MGMT driver event debug level for Beacon frames This event can be very frequent in AP mode when Beacon frames from neighboring BSSes are delivered to user space. Drop the debug message priority from DEBUG to EXCESSIVE for Beacon frames. Signed-hostap: Jouni Malinen <j@w1.fi>
2011-12-18 20:48:25 +01:00
#endif /* CONFIG_NO_STDOUT_DEBUG */
hostapd: Show driver event names in debug log Signed-hostap: Jouni Malinen <j@w1.fi>
2011-12-03 10:46:47 +01:00
Clean up HT40 scan and share nl80211 scanning code Instead of adding a new driver_ops for fetching neighbor BSS data (that nl80211 driver interface had to scan during initialization), share the same scan operations that wpa_supplicant is using. This gets rid of duplicated scan code in driver_nl80211.c (and better yet, removes large part of old WEXT code). hostapd interface initialization is now completed in a callback, if needed, i.e., he_features channel/hw_mode selection can use as much time as needed. This can also help with radar detection in the future.
2009-04-16 15:22:40 +02:00
switch (event) {
case EVENT_MICHAEL_MIC_FAILURE:
michael_mic_failure(hapd, data->michael_mic_failure.src, 1);
break;
case EVENT_SCAN_RESULTS:
if (hapd->iface->scan_cb)
hapd->iface->scan_cb(hapd->iface);
break;
Replace direct driver call to wpa_ft_rrb_rx() with driver event This avoids need to include hostapd/wpa.h into the driver wrappers.
2009-12-12 21:43:26 +01:00
#ifdef CONFIG_IEEE80211R
Fix EVENT_FT_RRB_RX processing
2009-12-13 20:19:02 +01:00
case EVENT_FT_RRB_RX:
Replace direct driver call to wpa_ft_rrb_rx() with driver event This avoids need to include hostapd/wpa.h into the driver wrappers.
2009-12-12 21:43:26 +01:00
wpa_ft_rrb_rx(hapd->wpa_auth, data->ft_rrb_rx.src,
data->ft_rrb_rx.data, data->ft_rrb_rx.data_len);
break;
#endif /* CONFIG_IEEE80211R */
Replace hostapd_button_pushed() with generic driver event
2009-12-13 20:21:10 +01:00
case EVENT_WPS_BUTTON_PUSHED:
P2P: Allow WPS_PBC command on GO to select on P2P Device Address An optional parameter, p2p_dev_addr, can now be given to WPS_PBC command on P2P GO to indicate that only the P2P device with the specified P2P Device Address is allowed to connect using PBC. If any other device tries to use PBC, a session overlap is indicated and the negotiation is rejected with M2D. The command format for specifying the address is "WPS_PBC p2p_dev_addr=<address>", e.g., WPS_PBC p2p_dev_addr=02:03:04:05:06:07 In addition, show the PBC session overlap indication as a WPS failure event on an AP/GO interface. This particular new case shows up as "WPS-FAIL msg=4 config_error=12".
2011-02-07 17:28:36 +01:00
hostapd_wps_button_pushed(hapd, NULL);
Replace hostapd_button_pushed() with generic driver event
2009-12-13 20:21:10 +01:00
break;
Use generic driver events for TX status and RX reporting Replace driver wrapper calls to hostapd_tx_status(), hostapd_rx_from_unknown_sta(), hostapd_mgmt_rx(), and hostapd_mgmt_tx_cb() with new generic driver events EVENT_TX_STATUS, EVENT_RX_FROM_UNKNOWN, and EVENT_RX_MGMT. This cleans up lot of the driver wrapper code to be less dependent on whether it is being used within wpa_supplicant AP mode or hostapd.
2009-12-13 22:05:39 +01:00
#ifdef NEED_AP_MLME
case EVENT_TX_STATUS:
switch (data->tx_status.type) {
case WLAN_FC_TYPE_MGMT:
hostapd_mgmt_tx_cb(hapd, data->tx_status.data,
data->tx_status.data_len,
data->tx_status.stype,
data->tx_status.ack);
break;
case WLAN_FC_TYPE_DATA:
hostapd_tx_status(hapd, data->tx_status.dst,
data->tx_status.data,
data->tx_status.data_len,
data->tx_status.ack);
break;
}
break;
AP: Add explicit EAPOL TX status event The new event can be used when EAPOL TX status can't be reported as a complete 802.11 frame but is instead reported as just the EAPOL data as originally passed to hapd_send_eapol(). Signed-hostap: Johannes Berg <johannes.berg@intel.com>
2011-11-19 12:00:30 +01:00
case EVENT_EAPOL_TX_STATUS:
hostapd_eapol_tx_status(hapd, data->eapol_tx_status.dst,
data->eapol_tx_status.data,
data->eapol_tx_status.data_len,
data->eapol_tx_status.ack);
break;
AP: Do station poll in driver wrapper This offloads the station polling to driver wrappers, which may offload it again to the driver. The hostap driver wrapper uses "real" data frames while nl80211 uses null data frames. Also add a specific event to indicate that a poll was successful for future use with the nl80211 driver.
2011-10-20 20:03:08 +02:00
case EVENT_DRIVER_CLIENT_POLL_OK:
hostapd_client_poll_ok(hapd, data->client_poll.addr);
break;
Use generic driver events for TX status and RX reporting Replace driver wrapper calls to hostapd_tx_status(), hostapd_rx_from_unknown_sta(), hostapd_mgmt_rx(), and hostapd_mgmt_tx_cb() with new generic driver events EVENT_TX_STATUS, EVENT_RX_FROM_UNKNOWN, and EVENT_RX_MGMT. This cleans up lot of the driver wrapper code to be less dependent on whether it is being used within wpa_supplicant AP mode or hostapd.
2009-12-13 22:05:39 +01:00
case EVENT_RX_FROM_UNKNOWN:
AP: Pass only bssid/addr/wds to EVENT_RX_FROM_UNKNOWN
2011-10-20 20:51:32 +02:00
hostapd_rx_from_unknown_sta(hapd, data->rx_from_unknown.bssid,
data->rx_from_unknown.addr,
data->rx_from_unknown.wds);
Use generic driver events for TX status and RX reporting Replace driver wrapper calls to hostapd_tx_status(), hostapd_rx_from_unknown_sta(), hostapd_mgmt_rx(), and hostapd_mgmt_tx_cb() with new generic driver events EVENT_TX_STATUS, EVENT_RX_FROM_UNKNOWN, and EVENT_RX_MGMT. This cleans up lot of the driver wrapper code to be less dependent on whether it is being used within wpa_supplicant AP mode or hostapd.
2009-12-13 22:05:39 +01:00
break;
case EVENT_RX_MGMT:
Move struct hostapd_frame_info definition away from driver API This is internal data structure for hostapd/AP functionality and does not need to be defined in driver.h.
2010-01-03 11:37:02 +01:00
hostapd_mgmt_rx(hapd, &data->rx_mgmt);
Use generic driver events for TX status and RX reporting Replace driver wrapper calls to hostapd_tx_status(), hostapd_rx_from_unknown_sta(), hostapd_mgmt_rx(), and hostapd_mgmt_tx_cb() with new generic driver events EVENT_TX_STATUS, EVENT_RX_FROM_UNKNOWN, and EVENT_RX_MGMT. This cleans up lot of the driver wrapper code to be less dependent on whether it is being used within wpa_supplicant AP mode or hostapd.
2009-12-13 22:05:39 +01:00
break;
#endif /* NEED_AP_MLME */
Replace hostapd_probe_req_rx() with EVENT_RX_PROBE_REQ driver event
2010-01-03 11:11:44 +01:00
case EVENT_RX_PROBE_REQ:
Add sanity checks to EVENT_RX_PROBE_REQ event data Both the SA and IEs from the received Probe Request frames must be included and the Probe Request RX callback functions may assume that these are not NULL.
2011-04-14 01:39:25 +02:00
if (data->rx_probe_req.sa == NULL ||
data->rx_probe_req.ie == NULL)
break;
Replace hostapd_probe_req_rx() with EVENT_RX_PROBE_REQ driver event
2010-01-03 11:11:44 +01:00
hostapd_probe_req_rx(hapd, data->rx_probe_req.sa,
P2P: Filter Probe Request frames based on DA and BSSID in Listen state Only accept Probe Request frames that have a Wildcard BSSID and a destination address that matches with our P2P Device Address or is the broadcast address per P2P specification 3.1.2.1.1.
2011-07-15 19:25:53 +02:00
data->rx_probe_req.da,
data->rx_probe_req.bssid,
Replace hostapd_probe_req_rx() with EVENT_RX_PROBE_REQ driver event
2010-01-03 11:11:44 +01:00
data->rx_probe_req.ie,
Pass signal strength through, fix units The signal strength is currently never used as the only driver reporting it is nl80211 which uses IEEE80211_RADIOTAP_DB_ANTSIGNAL which is never populated by the kernel. The kernel will (soon) populate IEEE80211_RADIOTAP_DBM_ANTSIGNAL instead though, so use that. Also, since it was never really populated, we can redefine the signal field to be in dBm units only. My next patch will also require knowing the signal strength of probe requests throughout the code (where available), so add it to the necessary APIs. Signed-hostap: Johannes Berg <johannes.berg@intel.com>
2012-04-01 17:48:12 +02:00
data->rx_probe_req.ie_len,
data->rx_probe_req.ssi_signal);
Replace hostapd_probe_req_rx() with EVENT_RX_PROBE_REQ driver event
2010-01-03 11:11:44 +01:00
break;
Replace hostapd_notif_new_sta() with new driver event, EVENT_NEW_STA
2010-01-03 15:46:18 +01:00
case EVENT_NEW_STA:
Use driver event, EVENT_EAPOL_RX, for EAPOL frame indication
2010-01-03 16:44:40 +01:00
hostapd_event_new_sta(hapd, data->new_sta.addr);
break;
case EVENT_EAPOL_RX:
hostapd_event_eapol_rx(hapd, data->eapol_rx.src,
data->eapol_rx.data,
data->eapol_rx.data_len);
break;
Use generic driver event notification for AP mode assoc/disassoc
2010-01-03 17:22:22 +01:00
case EVENT_ASSOC:
hostapd_notif_assoc(hapd, data->assoc_info.addr,
data->assoc_info.req_ies,
Indicate assoc vs. reassoc in association event This allows driver wrappers to indicate whether the association was done using Association Request/Response or with Reassociation Request/Response frames.
2010-10-25 12:50:34 +02:00
data->assoc_info.req_ies_len,
data->assoc_info.reassoc);
Use generic driver event notification for AP mode assoc/disassoc
2010-01-03 17:22:22 +01:00
break;
case EVENT_DISASSOC:
if (data)
hostapd_notif_disassoc(hapd, data->disassoc_info.addr);
break;
case EVENT_DEAUTH:
if (data)
hostapd_notif_disassoc(hapd, data->deauth_info.addr);
break;
Allow AP mode to disconnect STAs based on low ACK condition The nl80211 driver can report low ACK condition (in fact it reports complete loss right now only). Use that, along with a config option, to disconnect stations when the data connection is not working properly, e.g., due to the STA having went outside the range of the AP. This is disabled by default and can be enabled with disassoc_low_ack=1 in hostapd or wpa_supplicant configuration file. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2010-12-28 16:15:01 +01:00
case EVENT_STATION_LOW_ACK:
if (!data)
break;
hostapd_event_sta_low_ack(hapd, data->low_ack.addr);
break;
Fix hostapd build without NEED_AP_MLME=y
2011-06-22 20:45:14 +02:00
#ifdef NEED_AP_MLME
Add EVENT_RX_ACTION handler for hostapd This fixes an issue with SA Query Response frames not being processed anymore after wpa_supplicant started registering a handler for those. This handler registration is in generic driver_nl80211.c code, so hostapd uses it, too.
2011-06-21 19:55:46 +02:00
case EVENT_RX_ACTION:
if (data->rx_action.da == NULL || data->rx_action.sa == NULL ||
data->rx_action.bssid == NULL)
break;
hostapd_rx_action(hapd, &data->rx_action);
break;
Fix hostapd build without NEED_AP_MLME=y
2011-06-22 20:45:14 +02:00
#endif /* NEED_AP_MLME */
Clean up HT40 scan and share nl80211 scanning code Instead of adding a new driver_ops for fetching neighbor BSS data (that nl80211 driver interface had to scan during initialization), share the same scan operations that wpa_supplicant is using. This gets rid of duplicated scan code in driver_nl80211.c (and better yet, removes large part of old WEXT code). hostapd interface initialization is now completed in a callback, if needed, i.e., he_features channel/hw_mode selection can use as much time as needed. This can also help with radar detection in the future.
2009-04-16 15:22:40 +02:00
default:
wpa_printf(MSG_DEBUG, "Unknown event %d", event);
break;
}
}
Use generic driver events for TX status and RX reporting Replace driver wrapper calls to hostapd_tx_status(), hostapd_rx_from_unknown_sta(), hostapd_mgmt_rx(), and hostapd_mgmt_tx_cb() with new generic driver events EVENT_TX_STATUS, EVENT_RX_FROM_UNKNOWN, and EVENT_RX_MGMT. This cleans up lot of the driver wrapper code to be less dependent on whether it is being used within wpa_supplicant AP mode or hostapd.
2009-12-13 22:05:39 +01:00
#endif /* HOSTAPD */
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