/* * * Wireless daemon for Linux * * Copyright (C) 2014-2019 Intel Corporation. All rights reserved. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA * */ #include #include #include #include /* Std 802.11, Section 8.2.3 */ #define IEEE80211_MAX_DATA_LEN 2304 /* 802.11, Table 8-1 "Valid type and subtype combinations" */ enum mpdu_type { MPDU_TYPE_MANAGEMENT = 0, }; /* 802.11-2016, Table 9-1 "Valid type and subtype combinations" */ enum mpdu_management_subtype { MPDU_MANAGEMENT_SUBTYPE_ASSOCIATION_REQUEST = 0x0, MPDU_MANAGEMENT_SUBTYPE_ASSOCIATION_RESPONSE = 0x1, MPDU_MANAGEMENT_SUBTYPE_REASSOCIATION_REQUEST = 0x2, MPDU_MANAGEMENT_SUBTYPE_REASSOCIATION_RESPONSE = 0x3, MPDU_MANAGEMENT_SUBTYPE_PROBE_REQUEST = 0x4, MPDU_MANAGEMENT_SUBTYPE_PROBE_RESPONSE = 0x5, MPDU_MANAGEMENT_SUBTYPE_TIMING_ADVERTISEMENT = 0x6, MPDU_MANAGEMENT_SUBTYPE_BEACON = 0x8, MPDU_MANAGEMENT_SUBTYPE_ATIM = 0x9, MPDU_MANAGEMENT_SUBTYPE_DISASSOCIATION = 0xA, MPDU_MANAGEMENT_SUBTYPE_AUTHENTICATION = 0xB, MPDU_MANAGEMENT_SUBTYPE_DEAUTHENTICATION = 0xC, MPDU_MANAGEMENT_SUBTYPE_ACTION = 0xD, MPDU_MANAGEMENT_SUBTYPE_ACTION_NO_ACK = 0xE, }; /* 802.11-2016, Section 9.4.1.1 Authentication Algorithm Number field */ enum mmpdu_authentication_algorithm_number { MMPDU_AUTH_ALGO_OPEN_SYSTEM = 0, MMPDU_AUTH_ALGO_SHARED_KEY, MMPDU_AUTH_ALGO_FT, MMPDU_AUTH_ALGO_SAE, MMPDU_AUTH_ALGO_FILS_SK, MMPDU_AUTH_ALGO_FILS_SK_PFS, MMPDU_AUTH_ALGO_FILS_PK, }; /* * 802.11-2016, Section 9.4.1.7 Reason Code field */ enum mmpdu_reason_code { MMPDU_REASON_CODE_UNSPECIFIED = 1, MMPDU_REASON_CODE_PREV_AUTH_NOT_VALID = 2, MMPDU_REASON_CODE_DEAUTH_LEAVING = 3, MMPDU_REASON_CODE_DISASSOC_DUE_TO_INACTIVITY = 4, MMPDU_REASON_CODE_DISASSOC_AP_BUSY = 5, MMPDU_REASON_CODE_CLASS2_FRAME_FROM_NONAUTH_STA = 6, MMPDU_REASON_CODE_CLASS3_FRAME_FROM_NONASSOC_STA = 7, MMPDU_REASON_CODE_DISASSOC_STA_HAS_LEFT = 8, MMPDU_REASON_CODE_STA_REQ_ASSOC_WITHOUT_AUTH = 9, /* 802.11h */ MMPDU_REASON_CODE_DISASSOC_BAD_POWER = 10, MMPDU_REASON_CODE_DISASSOC_BAD_SUPP_CHAN = 11, /* 802.11i */ MMPDU_REASON_CODE_INVALID_IE = 13, MMPDU_REASON_CODE_MIC_FAILURE = 14, MMPDU_REASON_CODE_4WAY_HANDSHAKE_TIMEOUT = 15, MMPDU_REASON_CODE_GROUP_KEY_HANDSHAKE_TIMEOUT = 16, MMPDU_REASON_CODE_IE_DIFFERENT = 17, MMPDU_REASON_CODE_INVALID_GROUP_CIPHER = 18, MMPDU_REASON_CODE_INVALID_PAIRWISE_CIPHER = 19, MMPDU_REASON_CODE_INVALID_AKMP = 20, MMPDU_REASON_CODE_UNSUPP_RSN_VERSION = 21, MMPDU_REASON_CODE_INVALID_RSN_IE_CAP = 22, MMPDU_REASON_CODE_IEEE8021X_FAILED = 23, MMPDU_REASON_CODE_CIPHER_SUITE_REJECTED = 24, /* TDLS (802.11z) */ MMPDU_REASON_CODE_TDLS_TEARDOWN_UNREACHABLE = 25, MMPDU_REASON_CODE_TDLS_TEARDOWN_UNSPECIFIED = 26, /* 802.11e */ MMPDU_REASON_CODE_DISASSOC_UNSPECIFIED_QOS = 32, MMPDU_REASON_CODE_DISASSOC_QAP_NO_BANDWIDTH = 33, MMPDU_REASON_CODE_DISASSOC_LOW_ACK = 34, MMPDU_REASON_CODE_DISASSOC_QAP_EXCEED_TXOP = 35, MMPDU_REASON_CODE_QSTA_LEAVE_QBSS = 36, MMPDU_REASON_CODE_QSTA_NOT_USE = 37, MMPDU_REASON_CODE_QSTA_REQUIRE_SETUP = 38, MMPDU_REASON_CODE_QSTA_TIMEOUT = 39, MMPDU_REASON_CODE_QSTA_CIPHER_NOT_SUPP = 45, /* 802.11s */ MMPDU_REASON_CODE_MESH_PEER_CANCELED = 52, MMPDU_REASON_CODE_MESH_MAX_PEERS = 53, MMPDU_REASON_CODE_MESH_CONFIG = 54, MMPDU_REASON_CODE_MESH_CLOSE = 55, MMPDU_REASON_CODE_MESH_MAX_RETRIES = 56, MMPDU_REASON_CODE_MESH_CONFIRM_TIMEOUT = 57, MMPDU_REASON_CODE_MESH_INVALID_GTK = 58, MMPDU_REASON_CODE_MESH_INCONSISTENT_PARAM = 59, MMPDU_REASON_CODE_MESH_INVALID_SECURITY = 60, MMPDU_REASON_CODE_MESH_PATH_ERROR = 61, MMPDU_REASON_CODE_MESH_PATH_NOFORWARD = 62, MMPDU_REASON_CODE_MESH_PATH_DEST_UNREACHABLE = 63, MMPDU_REASON_CODE_MAC_EXISTS_IN_MBSS = 64, MMPDU_REASON_CODE_MESH_CHAN_REGULATORY = 65, MMPDU_REASON_CODE_MESH_CHAN = 66, /* 67 - 65535 reserved */ }; /* * 802.11-2016, Section 9.4.1.9 Status Code field */ enum mmpdu_status_code { MMPDU_STATUS_CODE_UNSPECIFIED = 1, MMPDU_STATUS_CODE_TDLS_REJECTED_ALT_PROV = 2, MMPDU_STATUS_CODE_TDLS_REJECTED = 3, /* 4 reserved */ MMPDU_STATUS_CODE_SECURITY_DISABLED = 5, MMPDU_STATUS_CODE_UNACCEPTABLE_LIFETIME = 6, MMPDU_STATUS_CODE_NOT_IN_SAME_BSS = 7, /* 8-9 reserved */ MMPDU_STATUS_CODE_CAPABILITIES_MISMATCH = 10, MMPDU_STATUS_CODE_NO_ASSOC_EXISTS = 11, MMPDU_STATUS_CODE_DENIED_OTHER_REASON = 12, MMPDU_STATUS_CODE_UNSUP_AUTH_ALG = 13, MMPDU_STATUS_CODE_TRANS_SEQ_ERROR = 14, MMPDU_STATUS_CODE_CHALLENGE_FAILURE = 15, MMPDU_STATUS_CODE_REJECTED_SEQ_TIMEOUT = 16, MMPDU_STATUS_CODE_DENIED_NO_MORE_STAS = 17, MMPDU_STATUS_CODE_REFUSED_RATE_MISMATCH = 18, MMPDU_STATUS_CODE_NO_SHORT_PREAMBLE_SUPP = 19, /* 20-21 reserved */ MMPDU_STATUS_CODE_REJECTED_SPECTRUM_MGMT = 22, MMPDU_STATUS_CODE_REJECTED_BAD_POWER_CAP = 23, MMPDU_STATUS_CODE_REJECTED_BAD_SUPP_CHAN = 24, MMPDU_STATUS_CODE_DENIED_NO_SHORT_SLOT_TIME = 25, /* 26 reserved */ MMPDU_STATUS_CODE_DENIED_NO_HT_SUPP = 27, MMPDU_STATUS_CODE_R0KH_UNREACHABLE = 28, MMPDU_STATUS_CODE_DENIED_PCO_TIME_NOT_SUPP = 29, MMPDU_STATUS_CODE_REFUSED_TEMPORARILY = 30, MMPDU_STATUS_CODE_ROBUST_MGMT_POLICY_VIOLATION = 31, MMPDU_STATUS_CODE_UNSPECIFIED_QOS_FAILURE = 32, MMPDU_STATUS_CODE_DENIED_UNSUFFICIENT_BANDWIDTH = 33, MMPDU_STATUS_CODE_DENIED_POOR_CHAN_CONDITIONS = 34, MMPDU_STATUS_CODE_DENIED_QOS_NOT_SUPP = 35, /* 36 reserved */ MMPDU_STATUS_CODE_REQUEST_DECLINED = 37, MMPDU_STATUS_CODE_INVALID_PARAMETERS = 38, MMPDU_STATUS_CODE_REJECTED_WITH_SUGG_CHANGES = 39, MMPDU_STATUS_CODE_INVALID_ELEMENT = 40, MMPDU_STATUS_CODE_INVALID_GROUP_CIPHER = 41, MMPDU_STATUS_CODE_INVALID_PAIRWISE_CIPHER = 42, MMPDU_STATUS_CODE_INVALID_AKMP = 43, MMPDU_STATUS_CODE_UNSUPP_RSNE_VERSION = 44, MMPDU_STATUS_CODE_INVALID_RSNE_CAP = 45, MMPDU_STATUS_CODE_CIPHER_OUT_OF_POLICY = 46, MMPDU_STATUS_CODE_REJECTED_FOR_DELAY_PERIOD = 47, MMPDU_STATUS_CODE_DLS_NOT_ALLOWED = 48, MMPDU_STATUS_CODE_NOT_PRESENT = 49, MMPDU_STATUS_CODE_NOT_QOS_STA = 50, MMPDU_STATUS_CODE_LISTEN_INTERVAL_TOO_LARGE = 51, MMPDU_STATUS_CODE_INVALID_FT_ACTION_FRAME_COUNT = 52, MMPDU_STATUS_CODE_INVALID_PMKID = 53, MMPDU_STATUS_CODE_INVALID_MDE = 54, MMPDU_STATUS_CODE_INVALID_FTE = 55, MMPDU_STATUS_CODE_REQ_TCLAS_NOT_SUPP = 56, MMPDU_STATUS_CODE_INSUFFICIENT_TCLAS_PROCESS_RESOURCE = 57, MMPDU_STATUS_CODE_TRY_ANOTHER_BSS = 58, MMPDU_STATUS_CODE_GAS_ADVERTISEMENT_NOT_SUPP = 59, MMPDU_STATUS_CODE_NO_OUTSTANDING_GAS_REQ = 60, MMPDU_STATUS_CODE_GAS_RESP_NOT_RECEIVED = 61, MMPDU_STATUS_CODE_GAS_QUERY_TIMEOUT = 62, MMPDU_STATUS_CODE_GAS_QUERY_RESP_TOO_LARGE = 63, MMPDU_STATUS_CODE_REJECTED_HOME_SUGG_CHANGES = 64, MMPDU_STATUS_CODE_SERVER_UNREACHABLE = 65, /* 66 reserved */ MMPDU_STATUS_CODE_REJECTED_FOR_SSP_PERMISSIONS = 67, MMPDU_STATUS_CODE_REFUSED_UNAUTH_ACCESS_NOT_SUPP = 68, /* 69-71 reserved */ MMPDU_STATUS_CODE_INVALID_RSNE = 72, MMPDU_STATUS_CODE_U_APSD_COEX_NOT_SUPP = 73, MMPDU_STATUS_CODE_U_APSD_COEX_MODE_NOT_SUPP = 74, MMPDU_STATUS_CODE_BAD_INTERVAL_WITH_U_APSD_COEX = 75, MMPDU_STATUS_CODE_ANTI_CLOGGING_TOKEN_REQ = 76, MMPDU_STATUS_CODE_UNSUPP_FINITE_CYCLIC_GROUP = 77, MMPDU_STATUS_CODE_CANNOT_FIND_ALT_TBTT = 78, MMPDU_STATUS_CODE_TRANSMISSION_FAILURE = 79, /* Spec has 2 errors with the same name (56 above) bug? */ MMPDU_STATUS_CODE_REQ_TCLAS_NOT_SUPP2 = 80, MMPDU_STATUS_CODE_TCLAS_RESOURCE_EXAUSTED = 81, MMPDU_STATUS_CODE_REJECTED_WITH_SUGG_BSS_TRANS = 82, MMPDU_STATUS_CODE_REJECT_WITH_SCHEDULE = 83, MMPDU_STATUS_CODE_REJECT_NO_WAKEUP_SPECIFIED = 84, MMPDU_STATUS_CODE_SUCCESS_POWER_SAVE_MODE = 85, MMPDU_STATUS_CODE_PENDING_ADMITTING_FST_SESSION = 86, MMPDU_STATUS_CODE_PERFORMING_FST_NOW = 87, MMPDU_STATUS_CODE_PENDING_GAP_IN_BA_WINDOW = 88, MMPDU_STATUS_CODE_REJECT_U_PID_SETTING = 89, /* 90-91 reserved */ MMPDU_STATUS_CODE_REFUSED_EXTERNAL_REASON = 92, MMPDU_STATUS_CODE_REFUSED_AP_OOM = 93, MMPDU_STATUS_CODE_REJECT_EMERGENCY_SERVICE_NOT_SUPP = 94, MMPDU_STATUS_CODE_QUERY_RESPONSE_OUTSTANDING = 95, MMPDU_STATUS_CODE_REJECT_DSE_BAND = 96, MMPDU_STATUS_CODE_TCLAS_PROCESSING_TERM = 97, MMPDU_STATUS_CODE_TS_SCHEDULE_CONFLICT = 98, MMPDU_STATUS_CODE_DENIED_WITH_SUGG_BAND = 99, MMPDU_STATUS_CODE_MCCAOP_RESERVATION_CONFLICT = 100, MMPDU_STATUS_CODE_MAF_LIMIT_EXCEEDED = 101, MMPDU_STATUS_CODE_MCCA_TRACK_LIMIT_EXCEEDED = 102, MMPDU_STATUS_CODE_DENIED_SPECTRUM_MGMT = 103, MMPDU_STATUS_CODE_DENIED_VHT_NOT_SUPP = 104, MMPDU_STATUS_CODE_ENABLEMENT_DENIED = 105, MMPDU_STATUS_CODE_RESTRICT_AUTH_GDB = 106, MMPDU_STATUS_CODE_AUTHORIZATION_DEENABLED = 107, }; /* 802.11, Section 8.2.4.1.1, Figure 8-2 */ struct mpdu_fc { #if defined(__LITTLE_ENDIAN_BITFIELD) uint8_t protocol_version:2; uint8_t type:2; uint8_t subtype:4; bool to_ds:1; bool from_ds:1; bool more_fragments:1; bool retry:1; bool power_mgmt:1; bool more_data:1; bool protected_frame:1; bool order:1; #elif defined (__BIG_ENDIAN_BITFIELD) uint8_t subtype:4; uint8_t type:2; uint8_t protocol_version:2; bool order:1; bool protected_frame:1; bool more_data:1; bool power_mgmt:1; bool retry:1; bool more_fragments:1; bool from_ds:1; bool to_ds:1; #else #error "Please fix " #endif } __attribute__ ((packed)); /* 802.11, Section 8.3.3.1 */ struct mmpdu_header { struct mpdu_fc fc; __le16 duration; unsigned char address_1[6]; unsigned char address_2[6]; unsigned char address_3[6]; #if defined(__LITTLE_ENDIAN_BITFIELD) uint8_t fragment_number:4; uint8_t sequence_number_low:4; #elif defined (__BIG_ENDIAN_BITFIELD) uint8_t sequence_number_low:4; uint8_t fragment_number:4; #else #error "Please fix " #endif uint8_t sequence_number_high; __le32 ht_control; /* ToDo? */ } __attribute__ ((packed)); #define MPDU_SEQUENCE_NUMBER(v) \ (((v).sequence_number_high << 4) + ((v).sequence_number_low)) /* 802.11, Section 8.4.1.4 */ struct mmpdu_field_capability { #if defined(__LITTLE_ENDIAN_BITFIELD) bool ess:1; bool ibss:1; bool cf_pollable:1; bool cf_poll_req:1; bool privacy:1; bool preamble:1; bool pbcc:1; bool chanl_agility:1; bool spectrum_mgmt:1; bool qos:1; bool short_time:1; bool apsd:1; bool radio_mesure:1; bool dsss_ofdm:1; bool delayed_ack:1; bool immediate_ack:1; #elif defined (__BIG_ENDIAN_BITFIELD) bool chanl_agility:1; bool pbcc:1; bool preamble:1; bool privacy:1; bool cf_poll_req:1; bool cf_pollable:1; bool ibss:1; bool ess:1; bool immediate_ack:1; bool delayed_ack:1; bool dsss_ofdm:1; bool radio_mesure:1; bool apsd:1; bool short_time:1; bool qos:1; bool spectrum_mgmt:1; #else #error "Please fix " #endif } __attribute__ ((packed)); /* 802.11, Section 8.3.3.5 */ struct mmpdu_association_request { struct mmpdu_field_capability capability; __le16 listen_interval; uint8_t ies[0]; } __attribute__ ((packed)); /* 802.11, Section 8.3.3.6 */ struct mmpdu_association_response { struct mmpdu_field_capability capability; __le16 status_code; __le16 aid; uint8_t ies[0]; } __attribute__ ((packed)); /* 802.11, Section 8.3.3.7 */ struct mmpdu_reassociation_request { struct mmpdu_field_capability capability; __le16 listen_interval; unsigned char current_ap_address[6]; uint8_t ies[0]; } __attribute__ ((packed)); /* 802.11, Section 8.3.3.8 */ struct mmpdu_reassociation_response { struct mmpdu_field_capability capability; __le16 status_code; __le16 aid; uint8_t ies[0]; } __attribute__ ((packed)); /* 802.11, Section 8.3.3.4 */ struct mmpdu_disassociation { __le16 reason_code; uint8_t ies[0]; } __attribute__ ((packed)); /* 802.11, Section 8.3.3.9 */ struct mmpdu_probe_request { uint8_t ies[0]; } __attribute__ ((packed)); /* 802.11, Section 8.3.3.10 */ struct mmpdu_probe_response { uint8_t timestamp; __le16 beacon_interval; struct mmpdu_field_capability capability; uint8_t ies[0]; } __attribute__ ((packed)); /* 802.11, Section 8.3.3.15 */ struct mmpdu_timing_advertisement { uint8_t timestamp; struct mmpdu_field_capability capability; uint8_t ies[0]; } __attribute__ ((packed)); /* 802.11, Section 8.3.3.2 */ struct mmpdu_beacon { uint8_t timestamp; __le16 beacon_interval; struct mmpdu_field_capability capability; uint8_t ies[0]; } __attribute__ ((packed)); /* 802.11, Section 8.3.3.11 */ struct mmpdu_authentication { __le16 algorithm; __le16 transaction_sequence; __le16 status; uint8_t ies[]; } __attribute__ ((packed)); /* 802.11, Section 8.3.3.12 */ struct mmpdu_deauthentication { __le16 reason_code; uint8_t ies[0]; } __attribute__ ((packed)); const struct mmpdu_header *mpdu_validate(const uint8_t *frame, int len); const void *mmpdu_body(const struct mmpdu_header *mpdu); size_t mmpdu_header_len(const struct mmpdu_header *mmpdu);