cannot get IP when auth with wpa_supplicant + ath0 driver
Joe Love
joe at getsomewhere.net
Tue Oct 18 15:02:40 PDT 2005
I went through the procedure again to try and give an accurate
representation of what's been asked.
loaded wlan_wep.ko
up'd the ath0 interface (for letting ethereal grab stuff on the interface)
ath0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
inet6 fe80::20f:b5ff:fe62:28e3%ath0 prefixlen 64 scopeid 0x5
ether 00:0f:b5:62:28:e3
media: IEEE 802.11 Wireless Ethernet autoselect (DS/1Mbps)
status: no carrier
ssid "" channel 10
authmode OPEN privacy OFF txpowmax 50 protmode CTS
started ethereal on ath, link layer header type IEEE 802.11 plus
radiotap WLAN header
started wpa_supplicant (as in original email)
# ifconfig ath0
ath0: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> mtu 1500
inet6 fe80::20f:b5ff:fe62:28e3%ath0 prefixlen 64 scopeid 0x5
ether 00:0f:b5:62:28:e3
media: IEEE 802.11 Wireless Ethernet autoselect (OFDM/36Mbps)
status: associated
ssid UIC-Wireless channel 11 bssid 00:12:00:d7:0e:00
authmode OPEN privacy ON deftxkey UNDEF wepkey 2:104-bit txpowmax 50
protmode CTS roaming MANUAL bintval 100
started dhclient ("dhclient ath0")
no response received.
ended packet capture. (available at
http://www.getsomewhere.net/wpa.80211.dump )
# ifconfig ath0
ath0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
inet6 fe80::20f:b5ff:fe62:28e3%ath0 prefixlen 64 scopeid 0x5
inet 0.0.0.0 netmask 0xff000000 broadcast 255.255.255.255
ether 00:0f:b5:62:28:e3
media: IEEE 802.11 Wireless Ethernet autoselect (OFDM/36Mbps)
status: associated
ssid UIC-Wireless channel 11 bssid 00:12:00:d7:0e:00
authmode OPEN privacy ON deftxkey UNDEF wepkey 2:104-bit txpowmax 50
protmode CTS roaming MANUAL bintval 100
stopped wpa_supplicant.
# ifconfig ath0
ath0: flags=8802<BROADCAST,SIMPLEX,MULTICAST> mtu 1500
inet6 fe80::20f:b5ff:fe62:28e3%ath0 prefixlen 64 scopeid 0x5
inet 0.0.0.0 netmask 0xff000000 broadcast 255.255.255.255
ether 00:0f:b5:62:28:e3
media: IEEE 802.11 Wireless Ethernet autoselect (autoselect)
status: no carrier
ssid UIC-Wireless channel 11
authmode OPEN privacy OFF txpowmax 50 protmode CTS bintval 100
I decided at this point to re-read the email you sent, and go ahead with
running athstats and 80211stats, so the following is the output from
athstats & 80211stats after a separate run of wpa_supplicant:
# athstats && 80211stats
4 mib overflow interrupts
20 tx management frames
61 tx frames discarded prior to association
18 tx frames with no ack marked
11 tx frames with short preamble
3 rx failed 'cuz of bad CRC
4 periodic calibrations
1 rfgain value change
287 rate control checks
rssi of last ack: 29
avg recv rssi: 33
4 switched default/rx antenna
Antenna profile:
[1] tx 28 rx 1574
[2] tx 0 rx 28
1 rx discard 'cuz mcast echo
1430 rx beacon frames
1444 rx element unknown
15 rx frame chan mismatch
1 tx failed 'cuz no defkey
2 active scans started
I hope this all helps.
In case the url for the packet capture got glossed over above (since
it's kinda buried) it's available at:
http://www.getsomewhere.net/wpa.80211.dump
-Joe
Sam Leffler wrote:
> Joe Love wrote:
>
>> I'm trying to use my wireless connection on my campus's wireless
>> network.
>>
>> I'm using FreeBSD 6.0-RC1, with the pre-packaged wpa_supplicant
>> 0.3.9. I've tried using both a linksys wpc11 using the wi driver,
>> and a netgear wg511t using the ath driver. I'm currently betting on
>> using the netgear permanently, as the linksys card is causing me
>> unending issues as of late. The campus wireless uses TTLS+PAP, and
>> IPs are assigned dynamically.
>>
>> The problem I'm having is that after the connection is established
>> (it seems to authenticate just fine), I cannot get a response to any
>> dhcp requests.
>> Jouni Malinen, from the hostap mailing lists, proposed the following
>> as the problem:
>> "This AP is using somewhat non-standard key configuration (something
>> that most Cisco APs do with IEEE 802.1X), i.e., unicast key is using
>> non-zero key index (2 or 3) and broadcast key is using the other
>> indexes (alternating between 0 and 1).
>
>
> This shouldn't matter.
>
>> "The packet dump looked like WEP decryption would not have been done
>> or it would have failed completely. I would assume that the driver
>> code would drop the packet if ICV is incorrect, so I would assume
>> that the packet was not decrypted at all.
>> "I have seen this kind of key index use having issues with number of
>> drivers. In other words, this is a question for FreeBSD mailing lists
>> after all. Including the description of key index use with the
>> message should make it easier for the driver/IEEE 802.11 stack
>> authors to take a closer look at this. Anyway, a fix for this may
>> require changing the driver interface code for the set_key handler on
>> wpa_supplicant side, too."
>>
>> Included below are the wpa_supplicant configuration I am using and
>> the output of wpa_supplicant -d -iath0 -cwpa_supplicant.conf
>>
>> A packet dump of the transaction and some data following it (taken
>> from ethereal 0.10.10) can be found at
>> http://www.getsomewhere.net/wpa.dump
>
>
> This dump is at the 802.3 level which is not useful; we need to see
> what's going on at the 802.11 level or below in the driver.
>
>>
>> Thanks,
>> -Joe
>>
>> wpa_supplicant.conf:
>> ctrl_interface=/var/run/wpa_supplicant
>> eapol_version=2
>> ap_scan=1
>> #ap_scan=2 # suggested.
>> network={
>> ssid="UIC-Wireless"
>> scan_ssid=1
>> #key_mgmt=IEEE8021X WPA-EAP
>> mode=0
>> key_mgmt=IEEE8021X
>> eap=TTLS
>> identity="jlove1"
>> password="CENSORED"
>> anonymous_identity="anonymous"
>> ca_cert="thawte.pem"
>> #phase1="include_tls_length=1"
>> phase2="auth=PAP"
>> }
>>
>> wpa_supplicant output:
>> # wpa_supplicant -d -iath0 -cwpa_supplicant.conf
>> Initializing interface 'ath0' conf 'wpa_supplicant.conf' driver
>> 'default'
>> Configuration file 'wpa_supplicant.conf' ->
>> '/usr/home/lyfe/wpa_supplicant.conf'
>> Reading configuration file '/usr/home/lyfe/wpa_supplicant.conf'
>> ctrl_interface='/var/run/wpa_supplicant'
>> eapol_version=2
>> ap_scan=1
>> Priority group 0
>> id=0 ssid='UIC-Wireless'
>> Initializing interface (2) 'ath0'
>> EAPOL: SUPP_PAE entering state DISCONNECTED
>> EAPOL: KEY_RX entering state NO_KEY_RECEIVE
>> EAPOL: SUPP_BE entering state INITIALIZE
>> EAP: EAP entering state DISABLED
>> EAPOL: External notification - portEnabled=0
>> EAPOL: External notification - portValid=0
>> Own MAC address: 00:0f:b5:62:28:e3
>> wpa_driver_bsd_set_wpa: enabled=1
>> wpa_driver_bsd_set_wpa_internal: wpa=3 privacy=1
>> wpa_driver_bsd_del_key: keyidx=0
>> wpa_driver_bsd_del_key: keyidx=1
>> wpa_driver_bsd_del_key: keyidx=2
>> wpa_driver_bsd_del_key: keyidx=3
>> wpa_driver_bsd_set_countermeasures: enabled=0
>> wpa_driver_bsd_set_drop_unencrypted: enabled=1
>> Setting scan request: 0 sec 100000 usec
>> Starting AP scan (specific SSID)
>> Scan SSID - hexdump_ascii(len=12):
>> 55 49 43 2d 57 69 72 65 6c 65 73 73 UIC-Wireless
>> Received 0 bytes of scan results (3 BSSes)
>> Scan results: 3
>> Selecting BSS from priority group 0
>> 0: 00:12:00:d7:0e:00 ssid='' wpa_ie_len=0 rsn_ie_len=0
>> skip - no WPA/RSN IE
>> 1: 00:0c:41:75:12:a0 ssid='Linksys' wpa_ie_len=0 rsn_ie_len=0
>> skip - no WPA/RSN IE
>> 2: 00:13:46:15:84:5a ssid='powerlab' wpa_ie_len=0 rsn_ie_len=0
>> skip - no WPA/RSN IE
>> No suitable AP found.
>> Setting scan request: 5 sec 0 usec
>> Starting AP scan (broadcast SSID)
>> Received 0 bytes of scan results (4 BSSes)
>> Scan results: 4
>> Selecting BSS from priority group 0
>> 0: 00:12:00:d7:0e:00 ssid='' wpa_ie_len=0 rsn_ie_len=0
>> skip - no WPA/RSN IE
>> 1: 00:40:05:26:d5:24 ssid='mie-g' wpa_ie_len=0 rsn_ie_len=0
>> skip - no WPA/RSN IE
>> 2: 00:0c:41:75:12:a0 ssid='Linksys' wpa_ie_len=0 rsn_ie_len=0
>> skip - no WPA/RSN IE
>> 3: 00:13:46:15:84:5a ssid='powerlab' wpa_ie_len=0 rsn_ie_len=0
>> skip - no WPA/RSN IE
>> No suitable AP found.
>> Setting scan request: 5 sec 0 usec
>> Starting AP scan (specific SSID)
>> Scan SSID - hexdump_ascii(len=12):
>> 55 49 43 2d 57 69 72 65 6c 65 73 73 UIC-Wireless
>> Received 0 bytes of scan results (3 BSSes)
>> Scan results: 3
>> Selecting BSS from priority group 0
>> 0: 00:12:00:d7:0e:00 ssid='UIC-Wireless' wpa_ie_len=0 rsn_ie_len=0
>> skip - no WPA/RSN IE
>> 1: 00:0c:41:75:12:a0 ssid='Linksys' wpa_ie_len=0 rsn_ie_len=0
>> skip - no WPA/RSN IE
>> 2: 00:13:46:15:84:5a ssid='powerlab' wpa_ie_len=0 rsn_ie_len=0
>> skip - no WPA/RSN IE
>> selected non-WPA AP 00:12:00:d7:0e:00 ssid='UIC-Wireless'
>> Trying to associate with 00:12:00:d7:0e:00 (SSID='UIC-Wireless'
>> freq=2462 MHz)
>> Cancelling scan request
>> Automatic auth_alg selection: 0x1
>> No keys have been configured - skip key clearing
>> wpa_driver_bsd_set_drop_unencrypted: enabled=1
>> wpa_driver_bsd_associate: ssid 'UIC-Wireless' wpa ie len 0 pairwise 4
>> group 4 key mgmt 3
>> wpa_driver_bsd_associate: set PRIVACY 1
>> Setting authentication timeout: 5 sec 0 usec
>> EAPOL: External notification - portControl=Auto
>> Association event - clear replay counter
>> Associated to a new BSS: BSSID=00:12:00:d7:0e:00
>> No keys have been configured - skip key clearing
>> Associated with 00:12:00:d7:0e:00
>> EAPOL: External notification - portEnabled=0
>> EAPOL: External notification - portValid=0
>> EAPOL: External notification - portEnabled=1
>> EAPOL: SUPP_PAE entering state CONNECTING
>> EAPOL: txStart
>> EAPOL: SUPP_BE entering state IDLE
>> EAP: EAP entering state INITIALIZE
>> EAP: EAP entering state IDLE
>> Setting authentication timeout: 10 sec 0 usec
>> RX EAPOL from 00:12:00:d7:0e:00
>> Setting authentication timeout: 70 sec 0 usec
>> EAPOL: Received EAP-Packet frame
>> EAPOL: SUPP_PAE entering state RESTART
>> EAP: EAP entering state INITIALIZE
>> EAP: EAP entering state IDLE
>> EAPOL: SUPP_PAE entering state AUTHENTICATING
>> EAPOL: SUPP_BE entering state REQUEST
>> EAPOL: getSuppRsp
>> EAP: EAP entering state RECEIVED
>> EAP: Received EAP-Request method=1 id=1
>> EAP: EAP entering state IDENTITY
>> EAP: EAP-Request Identity data - hexdump_ascii(len=0):
>> EAP: using anonymous identity - hexdump_ascii(len=9):
>> 61 6e 6f 6e 79 6d 6f 75 73 anonymous
>> EAP: EAP entering state SEND_RESPONSE
>> EAP: EAP entering state IDLE
>> EAPOL: SUPP_BE entering state RESPONSE
>> EAPOL: txSuppRsp
>> EAPOL: SUPP_BE entering state RECEIVE
>> WPA: EAPOL frame too short, len 46, expecting at least 99
>> RX EAPOL from 00:12:00:d7:0e:00
>> EAPOL: Received EAP-Packet frame
>> EAPOL: SUPP_BE entering state REQUEST
>> EAPOL: getSuppRsp
>> EAP: EAP entering state RECEIVED
>> EAP: Received EAP-Request method=1 id=2
>> EAP: EAP entering state IDENTITY
>> EAP: EAP-Request Identity data - hexdump_ascii(len=0):
>> EAP: using anonymous identity - hexdump_ascii(len=9):
>> 61 6e 6f 6e 79 6d 6f 75 73 anonymous
>> EAP: EAP entering state SEND_RESPONSE
>> EAP: EAP entering state IDLE
>> EAPOL: SUPP_BE entering state RESPONSE
>> EAPOL: txSuppRsp
>> EAPOL: SUPP_BE entering state RECEIVE
>> WPA: EAPOL frame too short, len 46, expecting at least 99
>> RX EAPOL from 00:12:00:d7:0e:00
>> EAPOL: Received EAP-Packet frame
>> EAPOL: SUPP_BE entering state REQUEST
>> EAPOL: getSuppRsp
>> EAP: EAP entering state RECEIVED
>> EAP: Received EAP-Request method=21 id=3
>> EAP: EAP entering state GET_METHOD
>> EAP: initialize selected EAP method (21, TTLS)
>> EAP-TTLS: Phase2 type: PAP
>> TLS: Trusted root certificate(s) loaded
>> EAP: EAP entering state METHOD
>> EAP-TTLS: Received packet(len=6) - Flags 0x20
>> EAP-TTLS: Start
>> SSL: (where=0x10 ret=0x1)
>> SSL: (where=0x1001 ret=0x1)
>> SSL: SSL_connect:before/connect initialization
>> SSL: (where=0x1001 ret=0x1)
>> SSL: SSL_connect:SSLv3 write client hello A
>> SSL: (where=0x1002 ret=0xffffffff)
>> SSL: SSL_connect:error in SSLv3 read server hello A
>> SSL: SSL_connect - want more data
>> SSL: 100 bytes pending from ssl_out
>> SSL: 100 bytes left to be sent out (of total 100 bytes)
>> EAP: method process -> ignore=FALSE methodState=CONT decision=FAIL
>> EAP: EAP entering state SEND_RESPONSE
>> EAP: EAP entering state IDLE
>> EAPOL: SUPP_BE entering state RESPONSE
>> EAPOL: txSuppRsp
>> EAPOL: SUPP_BE entering state RECEIVE
>> WPA: EAPOL frame too short, len 46, expecting at least 99
>> RX EAPOL from 00:12:00:d7:0e:00
>> EAPOL: Received EAP-Packet frame
>> EAPOL: SUPP_BE entering state REQUEST
>> EAPOL: getSuppRsp
>> EAP: EAP entering state RECEIVED
>> EAP: Received EAP-Request method=21 id=4
>> EAP: EAP entering state METHOD
>> EAP-TTLS: Received packet(len=1396) - Flags 0xc0
>> EAP-TTLS: TLS Message Length: 2196
>> SSL: Need 810 bytes more input data
>> SSL: Building ACK
>> EAP: method process -> ignore=FALSE methodState=CONT decision=FAIL
>> EAP: EAP entering state SEND_RESPONSE
>> EAP: EAP entering state IDLE
>> EAPOL: SUPP_BE entering state RESPONSE
>> EAPOL: txSuppRsp
>> EAPOL: SUPP_BE entering state RECEIVE
>> IEEE 802.1X RX: version=1 type=0 length=1396
>> WPA: EAPOL frame (type 0) discarded, not a Key frame
>> RX EAPOL from 00:12:00:d7:0e:00
>> EAPOL: Received EAP-Packet frame
>> EAPOL: SUPP_BE entering state REQUEST
>> EAPOL: getSuppRsp
>> EAP: EAP entering state RECEIVED
>> EAP: Received EAP-Request method=21 id=5
>> EAP: EAP entering state METHOD
>> EAP-TTLS: Received packet(len=816) - Flags 0x00
>> SSL: (where=0x1001 ret=0x1)
>> SSL: SSL_connect:SSLv3 read server hello A
>> TLS: tls_verify_cb - preverify_ok=1 err=0 (ok) depth=1
>> buf='/C=ZA/ST=Western Cape/L=Cape Town/O=Thawte Consulting
>> cc/OU=Certification Services Division/CN=Thawte Server
>> CA/emailAddress=server-certs at thawte.com'
>> TLS: tls_verify_cb - preverify_ok=1 err=0 (ok) depth=0
>> buf='/C=US/ST=Illinois/L=Chicago/O=University of Illinois at
>> Chicago/OU=Academic Computer Center/CN=odyssey1.cc.uic.edu'
>> SSL: (where=0x1001 ret=0x1)
>> SSL: SSL_connect:SSLv3 read server certificate A
>> SSL: (where=0x1001 ret=0x1)
>> SSL: SSL_connect:SSLv3 read server key exchange A
>> SSL: (where=0x1001 ret=0x1)
>> SSL: SSL_connect:SSLv3 read server done A
>> SSL: (where=0x1001 ret=0x1)
>> SSL: SSL_connect:SSLv3 write client key exchange A
>> SSL: (where=0x1001 ret=0x1)
>> SSL: SSL_connect:SSLv3 write change cipher spec A
>> SSL: (where=0x1001 ret=0x1)
>> SSL: SSL_connect:SSLv3 write finished A
>> SSL: (where=0x1001 ret=0x1)
>> SSL: SSL_connect:SSLv3 flush data
>> SSL: (where=0x1002 ret=0xffffffff)
>> SSL: SSL_connect:error in SSLv3 read finished A
>> SSL: SSL_connect - want more data
>> SSL: 190 bytes pending from ssl_out
>> SSL: 190 bytes left to be sent out (of total 190 bytes)
>> EAP: method process -> ignore=FALSE methodState=CONT decision=FAIL
>> EAP: EAP entering state SEND_RESPONSE
>> EAP: EAP entering state IDLE
>> EAPOL: SUPP_BE entering state RESPONSE
>> EAPOL: txSuppRsp
>> EAPOL: SUPP_BE entering state RECEIVE
>> IEEE 802.1X RX: version=1 type=0 length=816
>> WPA: EAPOL frame (type 0) discarded, not a Key frame
>> RX EAPOL from 00:12:00:d7:0e:00
>> EAPOL: Received EAP-Packet frame
>> EAPOL: SUPP_BE entering state REQUEST
>> EAPOL: getSuppRsp
>> EAP: EAP entering state RECEIVED
>> EAP: Received EAP-Request method=21 id=6
>> EAP: EAP entering state METHOD
>> EAP-TTLS: Received packet(len=61) - Flags 0x80
>> EAP-TTLS: TLS Message Length: 51
>> SSL: (where=0x1001 ret=0x1)
>> SSL: SSL_connect:SSLv3 read finished A
>> SSL: (where=0x20 ret=0x1)
>> SSL: (where=0x1002 ret=0x1)
>> SSL: 0 bytes pending from ssl_out
>> SSL: No data to be sent out
>> EAP-TTLS: TLS done, proceed to Phase 2
>> EAP-TTLS: Derived key - hexdump(len=64): [REMOVED]
>> EAP-TTLS: received 0 bytes encrypted data for Phase 2
>> EAP-TTLS: empty data in beginning of Phase 2 - use fake EAP-Request
>> Identity
>> EAP-TTLS: Phase 2 PAP Request
>> EAP-TTLS: Encrypting Phase 2 data - hexdump(len=40): [REMOVED]
>> EAP-TTLS: Authentication completed successfully
>> EAP: method process -> ignore=FALSE methodState=DONE decision=COND_SUCC
>> EAP: EAP entering state SEND_RESPONSE
>> EAP: EAP entering state IDLE
>> EAPOL: SUPP_BE entering state RESPONSE
>> EAPOL: txSuppRsp
>> EAPOL: SUPP_BE entering state RECEIVE
>> WPA: EAPOL frame too short, len 65, expecting at least 99
>> RX EAPOL from 00:12:00:d7:0e:00
>> EAPOL: Received EAP-Packet frame
>> EAPOL: SUPP_BE entering state REQUEST
>> EAPOL: getSuppRsp
>> EAP: EAP entering state RECEIVED
>> EAP: Received EAP-Success
>> EAP: Workaround for unexpected identifier field in EAP Success:
>> reqId=7 lastId=6 (these are supposed to be same)
>> EAP: EAP entering state SUCCESS
>> EAPOL: SUPP_BE entering state RECEIVE
>> EAPOL: SUPP_BE entering state SUCCESS
>> EAPOL: SUPP_BE entering state IDLE
>> WPA: EAPOL frame too short, len 46, expecting at least 99
>> RX EAPOL from 00:12:00:d7:0e:00
>> EAPOL: Received EAPOL-Key frame
>> EAPOL: KEY_RX entering state KEY_RECEIVE
>> EAPOL: processKey
>> EAPOL: RX IEEE 802.1X ver=1 type=3 len=57 EAPOL-Key: type=1
>> key_length=13 key_index=0x1
>> EAPOL: EAPOL-Key key signature verified
>> EAPOL: Decrypted(RC4) key - hexdump(len=13): [REMOVED]
>> EAPOL: Setting dynamic WEP key: broadcast keyidx 1 len 13
>> wpa_driver_bsd_set_key: alg=WEP addr=ff:ff:ff:ff:ff:ff key_idx=1
>> set_tx=0 seq_len=0 key_len=13
>
>
> This is the only call to install a key and it sets up a rx-only key
> (set_tx=0). I don't see the unicast key being setup. I need a packet
> trace at the 802.11 layer to see if frames are being dropped for some
> reason. Alternatively you could use the athstats and 80211stats tools
> found in tools/tools/ath to check the statistics counters. It might
> also be instructive to see the state of the interface at this point
> (before you hit ^C); use ifconfig to get that info.
>
> Sam
>
>
>> WPA: EAPOL frame too short, len 61, expecting at least 99
>>
>> ^CSignal 2 received - terminating
>> wpa_driver_bsd_deauthenticate
>> wpa_driver_bsd_del_key: keyidx=0
>> wpa_driver_bsd_del_key: keyidx=1
>> wpa_driver_bsd_del_key: keyidx=2
>> wpa_driver_bsd_del_key: keyidx=3
>> wpa_driver_bsd_del_key: addr=00:12:00:d7:0e:00 keyidx=0
>> ioctl[SIOCS80211, op 20, len 7]: Can't assign requested address
>> EAPOL: External notification - portEnabled=0
>> EAPOL: SUPP_PAE entering state DISCONNECTED
>> EAPOL: KEY_RX entering state NO_KEY_RECEIVE
>> EAPOL: SUPP_BE entering state INITIALIZE
>> EAP: EAP entering state DISABLED
>> EAPOL: External notification - portValid=0
>> wpa_driver_bsd_set_wpa: enabled=0
>> wpa_driver_bsd_set_wpa_internal: wpa=0 privacy=0
>> wpa_driver_bsd_set_drop_unencrypted: enabled=0
>> wpa_driver_bsd_set_countermeasures: enabled=0
>> No keys have been configured - skip key clearing
>> wpa_driver_bsd_set_wpa_internal: wpa=0 privacy=0
>> EAP: deinitialize previously used EAP method (21, TTLS) at EAP deinit
>> #
>>
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>
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