#ifndef IEEE_802_11 #define IEEE_802_11 enum ieee_802_11_link_status_failure_reason { reserved0, Unspecified=1, Previous_not_valid, Sender_Quits_ESS_or_IBSS, Due_Inactivity, AP_Overload, Class_2_from_NonAuth, Class_3_from_NonAuth, Sender_Quits_BSS, Association_requester_not_authenticated, Reserved10 }; #define IEEE_802_11_LINK_STATUS_FAILURE_REASON_STRINGS \ { \ {reserved0, 0xff," Reserved reason "},\ {Unspecified, 0xff," Unspecified Reason "},\ {Previous_not_valid, 0xff," Previous Authentication no longer valid "},\ {Sender_Quits_ESS_or_IBSS,0xff," Deauthenticated because sending station is leaving (has left) IBSS or ESS "},\ {Due_Inactivity, 0xff," Disassociated due to inactivity "},\ {AP_Overload, 0xff," Disassociated because AP is unable to handle all currently associated stations "},\ {Class_2_from_NonAuth, 0xff," Class 2 frame received from non-Authenticated station"},\ {Class_3_from_NonAuth, 0xff," Class 3 frame received from non­Associated station"},\ {Sender_Quits_BSS, 0xff," Disassociated because sending station is leaving (has left) BSS"},\ {Association_requester_not_authenticated,0xff," Station requesting (Re)Association is not Authenticated with responding station"},\ {Reserved10, 0xff," Reserved"},\ {0,0,NULL}\ }; struct ieee_802_11_header { u_int16_t frame_control;// needs to be subtyped u_int16_t duration; u_int8_t mac1[6]; u_int8_t mac2[6]; u_int8_t mac3[6]; u_int16_t SeqCtl; u_int8_t mac4[6]; // u_int16_t gapLen; // u_int8_t gap[8]; }; struct ieee_802_3_header { u_int16_t status; u_int16_t payload_length; u_int8_t dst_mac[6]; u_int8_t src_mac[6]; }; #define P80211_OUI_LEN 3 struct ieee_802_11_802_2_header { u_int8_t dsap; u_int8_t ssap; /* always 0xAA */ u_int8_t ctrl; /* always 0x03 */ u_int8_t oui[P80211_OUI_LEN]; /* organizational universal id */ u_int16_t type; /* packet type ID field */ }; /* See RFC 826 for protocol description. ARP packets are variable in size; the arphdr structure defines the fixed-length portion. Protocol type values are the same as those for 10 Mb/s Ethernet. It is followed by the variable-sized fields ar_sha, arp_spa, arp_tha and arp_tpa in that order, according to the lengths specified. Field names used correspond to RFC 826. */ #define ETH_ALEN 6 struct myarphdr { unsigned short int ar_hrd; /* Format of hardware address. */ unsigned short int ar_pro; /* Format of protocol address. */ unsigned char ar_hln; /* Length of hardware address. */ unsigned char ar_pln; /* Length of protocol address. */ unsigned short int ar_op; /* ARP opcode (command). */ /* Ethernet looks like this : This bit is variable sized however... */ unsigned char ar_sha[ETH_ALEN]; /* Sender hardware address. */ unsigned char ar_sip[4]; /* Sender IP address. */ unsigned char ar_tha[ETH_ALEN]; /* Target hardware address. */ unsigned char ar_tip[4]; /* Target IP address. */ }; // following is incoplete and may be incorrect and need reorganization #define ieee_802_11_frame_type_Management 0x00 #define ieee_802_11_frame_type_Control 0x01 #define ieee_802_11_frame_type_Data 0x10 #define ieee_802_11_frame_type_Reserved 0x11 #define ieee_802_11_frame_subtype_Association_Req 0x0 // Association Request #define ieee_802_11_frame_subtype_Association_Resp 0x1 // Association Response #define ieee_802_11_frame_subtype_Reassociation_Req 0x2 // Reassociation Request #define ieee_802_11_frame_subtype_Reassociation_Resp 0x3 // Reassociation Response #define ieee_802_11_frame_subtype_Probe_Req 0x4 // Probe Request #define ieee_802_11_frame_subtype_Probe_Resp 0x5 // Probe Response #define ieee_802_11_frame_subtype_Beacon 0x8 // Beacon #define ieee_802_11_frame_subtype_ATIM 0x9 // ATIM #define ieee_802_11_frame_subtype_Disassociation 0xA // Disassociation #define ieee_802_11_frame_subtype_Authentication 0xB // Authentication #define ieee_802_11_frame_subtype_Deauthentication 0xC // Deauthentication #define ieee_802_11_frame_subtype_PS_Poll 0xA // PS-Poll #define ieee_802_11_frame_subtype_RTS 0xB // RTS #define ieee_802_11_frame_subtype_CTS 0xC // CTS #define ieee_802_11_frame_subtype_ACK 0xD // ACK #define ieee_802_11_frame_subtype_CFEnd 0xE // CF-End #define ieee_802_11_frame_subtype_CFEnd_CFAck 0xF // CF-End + CF-Ack #define ieee_802_11_frame_subtype_Data 0x0 // Data #define ieee_802_11_frame_subtype_Data_CFAck 0x1 // Data + CF-Ack #define ieee_802_11_frame_subtype_Data_CF_Poll 0x2 // Data + CF-Poll #define ieee_802_11_frame_subtype_Data_CF_AckCF_Poll 0x3 // Data + CF-Ack + CF-Poll #define ieee_802_11_frame_subtype_NullFunction 0x4 // Null Function (no data) #define ieee_802_11_frame_subtype_CF_Ack 0x5 // CF-Ack (no data) #define ieee_802_11_frame_subtype_CF_Poll 0x6 // CF-Poll (no data) #define ieee_802_11_frame_subtype_CF_AckCF_Poll 0x7 // CF-Ack + CF-Poll (no data) #define ieee_802_11_frame_subtype_strings {\ { ieee_802_11_frame_subtype_Association_Req, 0xF,"f Association Request"},\ { ieee_802_11_frame_subtype_Association_Resp, 0xF,"1 Association Response"},\ { ieee_802_11_frame_subtype_Reassociation_Req, 0xF,"2 Reassociation Request"},\ { ieee_802_11_frame_subtype_Reassociation_Resp, 0xF,"3 Reassociation Response"},\ { ieee_802_11_frame_subtype_Probe_Req , 0xF,"4 Probe Request"},\ { ieee_802_11_frame_subtype_Probe_Resp , 0xF,"5 Probe Response"},\ { ieee_802_11_frame_subtype_Beacon , 0xF,"8 Beacon"},\ { ieee_802_11_frame_subtype_ATIM , 0xF,"9 ATIM"},\ { ieee_802_11_frame_subtype_Disassociation, 0xF,"A Disassociation"},\ { ieee_802_11_frame_subtype_Authentication, 0xF,"B Authentication"},\ { ieee_802_11_frame_subtype_Deauthentication, 0xF,"C Deauthentication"},\ { ieee_802_11_frame_subtype_PS_Poll , 0xF,"A PS-Poll"},\ { ieee_802_11_frame_subtype_RTS , 0xF,"B RTS"},\ { ieee_802_11_frame_subtype_CTS , 0xF,"C CTS"},\ { ieee_802_11_frame_subtype_ACK , 0xF,"D ACK"},\ { ieee_802_11_frame_subtype_CFEnd , 0xF,"E CF-End"},\ { ieee_802_11_frame_subtype_CFEnd_CFAck , 0xF,"F CF-End + CF-Ack"},\ { ieee_802_11_frame_subtype_Data , 0xF,"0 Data"},\ { ieee_802_11_frame_subtype_Data_CFAck , 0xF,"1 Data + CF-Ack"},\ { ieee_802_11_frame_subtype_Data_CFPoll , 0xF,"2 Data + CF-Poll"},\ { ieee_802_11_frame_subtype_Data_CFAck_CFPoll, 0xF,"3 Data + CF-Ack + CF-Poll"},\ { ieee_802_11_frame_subtype_Null_Function , 0xF,"4 Null Function (no data)"},\ { ieee_802_11_frame_subtype_CFAck , 0xF,"5 CF-Ack (no data)"},\ { ieee_802_11_frame_subtype_CFPoll , 0xF,"6 CF-Poll (no data)"},\ { ieee_802_11_frame_subtype_CFAck_CFPoll, 0xF,"y7 CF-Ack + CF-Poll (no data)"},\ { 0,0,NULL}\ } struct ieee_802_11_frame_subtype_class { u_int8_t subtype; u_int8_t mask; u_int8_t klass; u_int8_t type; }; #define ieee_802_11_frame_subtype_classes {\ { ieee_802_11_frame_subtype_Association_Req, 0xF,2,ieee_802_11_frame_type_Management},\ { ieee_802_11_frame_subtype_Association_Resp, 0xF,2,ieee_802_11_frame_type_Management},\ { ieee_802_11_frame_subtype_Reassociation_Req, 0xF,2,ieee_802_11_frame_type_Management},\ { ieee_802_11_frame_subtype_Reassociation_Resp, 0xF,2,ieee_802_11_frame_type_Management},\ { ieee_802_11_frame_subtype_Probe_Req , 0xF,1,ieee_802_11_frame_type_Management},\ { ieee_802_11_frame_subtype_Probe_Resp , 0xF,1,ieee_802_11_frame_type_Management},\ { ieee_802_11_frame_subtype_Beacon , 0xF,1,ieee_802_11_frame_type_Management},\ { ieee_802_11_frame_subtype_ATIM , 0xF,1,ieee_802_11_frame_type_Management},\ { ieee_802_11_frame_subtype_Disassociation, 0xF,2,ieee_802_11_frame_type_Management},\ { ieee_802_11_frame_subtype_Authentication, 0xF,1,ieee_802_11_frame_type_Management},\ { ieee_802_11_frame_subtype_Deauthentication, 0xF,3,ieee_802_11_frame_type_Management},\ { ieee_802_11_frame_subtype_PS-Poll , 0xF,3,ieee_802_11_frame_type_Control},\ { ieee_802_11_frame_subtype_RTS , 0xF,1,ieee_802_11_frame_type_Control},\ { ieee_802_11_frame_subtype_CTS , 0xF,1,ieee_802_11_frame_type_Control},\ { ieee_802_11_frame_subtype_ACK , 0xF,1,ieee_802_11_frame_type_Control},\ { ieee_802_11_frame_subtype_CFEnd , 0xF,1,ieee_802_11_frame_type_Control},\ { ieee_802_11_frame_subtype_CFEnd_CFAck , 0xF,1,ieee_802_11_frame_type_Control},\ { ieee_802_11_frame_subtype_Data , 0xF,3,ieee_802_11_frame_type_Data},\ { ieee_802_11_frame_subtype_Data_CFAck , 0xF,3,ieee_802_11_frame_type_Data},\ { ieee_802_11_frame_subtype_Data_CF_Poll 0xF,3,ieee_802_11_frame_type_Data},\ { ieee_802_11_frame_subtype_Data_CF_AckCF_Poll, 0xF,3,ieee_802_11_frame_type_Data},\ { ieee_802_11_frame_subtype_NullFunction 0xF,1,ieee_802_11_frame_type_Data},\ { ieee_802_11_frame_subtype_CF_Ack , 0xF,1,ieee_802_11_frame_type_Data},\ { ieee_802_11_frame_subtype_CF_Poll , 0xF,1,ieee_802_11_frame_type_Data},\ { ieee_802_11_frame_subtype_CF_AckCF_Poll, 0xF,1,ieee_802_11_frame_type_Data},\ { 0,0,NULL}\ } #define IEEE802_11_FC_LEN 2 #define T_MGMT 0x0 /* management */ #define T_CTRL 0x1 /* control */ #define T_DATA 0x2 /* data */ #define T_RESV 0x3 /* reserved */ #define ST_ASSOC_REQUEST 0x0 #define ST_ASSOC_RESPONSE 0x1 #define ST_REASSOC_REQUEST 0x2 #define ST_REASSOC_RESPONSE 0x3 #define ST_PROBE_REQUEST 0x4 #define ST_PROBE_RESPONSE 0x5 /* RESERVED 0x6 */ /* RESERVED 0x7 */ #define ST_BEACON 0x8 #define ST_ATIM 0x9 #define ST_DISASSOC 0xA #define ST_AUTH 0xB #define ST_DEAUTH 0xC /* RESERVED 0xD */ /* RESERVED 0xE */ /* RESERVED 0xF */ #define CTRL_PS_POLL 0xA #define CTRL_RTS 0xB #define CTRL_CTS 0xC #define CTRL_ACK 0xD #define CTRL_CF_END 0xE #define CTRL_END_ACK 0xF /* * Bits in the frame control field. */ #define FC_VERSION(fc) ((fc) & 0x3) #define FC_TYPE(fc) (((fc) >> 2) & 0x3) #define FC_SUBTYPE(fc) (((fc) >> 4) & 0xF) #define FC_TO_DS(fc) ((fc) & 0x0100) #define FC_FROM_DS(fc) ((fc) & 0x0200) #define FC_MORE_FLAG(fc) ((fc) & 0x0400) #define FC_RETRY(fc) ((fc) & 0x0800) #define FC_POWER_MGMT(fc) ((fc) & 0x1000) #define FC_MORE_DATA(fc) ((fc) & 0x2000) #define FC_WEP(fc) ((fc) & 0x4000) #define FC_ORDER(fc) ((fc) & 0x8000) struct ieee_802_11_mgmt_header { u_int16_t fc; u_int16_t duration; u_int8_t da[6]; u_int8_t sa[6]; u_int8_t bssid[6]; u_int16_t seq_ctrl; }; struct ieee_802_11_data_header { u_int16_t fc; u_int16_t duration; u_int8_t mac1[6]; u_int8_t mac2[6]; u_int8_t mac3[6]; u_int16_t SeqCtl; u_int8_t mac4[6]; // u_int16_t gapLen; // u_int8_t gap[8]; }; struct ieee_802_11_control_header { u_int16_t fc; u_int16_t duration; u_int8_t mac1[6]; u_int8_t mac2[6]; u_int8_t mac3[6]; u_int16_t SeqCtl; u_int8_t mac4[6]; // u_int16_t gapLen; // u_int8_t gap[8]; }; #define CAPABILITY_ESS(cap) ((cap) & 0x0001) #define CAPABILITY_IBSS(cap) ((cap) & 0x0002) #define CAPABILITY_CFP(cap) ((cap) & 0x0004) #define CAPABILITY_CFP_REQ(cap) ((cap) & 0x0008) #define CAPABILITY_PRIVACY(cap) ((cap) & 0x0010) struct ssid_t { u_int8_t element_id; u_int8_t length; u_char ssid[33]; /* 32 + 1 for null */ }; struct rates_t { u_int8_t element_id; u_int8_t length; u_int8_t rate[8]; }; struct challenge_t { u_int8_t element_id; u_int8_t length; u_int8_t text[254]; /* 1-253 + 1 for null */ }; struct fh_t { u_int8_t element_id; u_int8_t length; u_int16_t dwell_time; u_int8_t hop_set; u_int8_t hop_pattern; u_int8_t hop_index; }; struct ds_t { u_int8_t element_id; u_int8_t length; u_int8_t channel; }; struct cf_t { u_int8_t element_id; u_int8_t length; u_int8_t count; u_int8_t period; u_int16_t max_duration; u_int16_t dur_remaing; }; struct tim_t { u_int8_t element_id; u_int8_t length; u_int8_t count; u_int8_t period; u_int8_t bitmap_control; u_int8_t bitmap[251]; }; struct ibss_t { u_int8_t element_id; u_int8_t length; u_int16_t atim_window; }; #define E_SSID 0 #define E_RATES 1 #define E_FH 2 #define E_DS 3 #define E_CF 4 #define E_TIM 5 #define E_IBSS 6 #define E_CHALLENGE 16 #define E_CISCO 133 struct ieee_802_11_mgmt_body { u_int8_t timestamp[8]; u_int16_t beacon_interval; // u_int16_t listen_interval; // u_int16_t status_code; // u_int16_t aid; // u_char ap[6]; // u_int16_t reason_code; // u_int16_t auth_alg; // u_int16_t auth_trans_seq_num; // struct challenge_t challenge; u_int16_t capability_info; // struct ssid_t ssid; // struct rates_t rates; // struct ds_t ds; // struct cf_t cf; // struct fh_t fh; // struct tim_t tim; }; /* a 802.11 value */ struct val_80211 { unsigned int did; unsigned short status, len; unsigned int data; }; /* header attached during prism monitor mode */ struct prism_hdr { unsigned int msgcode, msglen; char devname[16]; struct val_80211 hosttime, mactime, channel, rssi, sq, signal, noise, rate, istx, frmlen; }; struct ieee_802_11_data_body { //FIXME }; struct ieee_802_11_control_body { //FIXME }; struct ctrl_rts_t { u_int16_t fc; u_int16_t duration; u_int8_t ra[6]; u_int8_t ta[6]; u_int8_t fcs[4]; }; #define CTRL_RTS_LEN (2+2+6+6+4) struct ctrl_cts_t { u_int16_t fc; u_int16_t duration; u_int8_t ra[6]; u_int8_t fcs[4]; }; #define CTRL_CTS_LEN (2+2+6+4) struct ctrl_ack_t { u_int16_t fc; u_int16_t duration; u_int8_t ra[6]; u_int8_t fcs[4]; }; #define CTRL_ACK_LEN (2+2+6+4) struct ctrl_ps_poll_t { u_int16_t fc; u_int16_t aid; u_int8_t bssid[6]; u_int8_t ta[6]; u_int8_t fcs[4]; }; #define CTRL_PS_POLL_LEN (2+2+6+6+4) struct ctrl_end_t { u_int16_t fc; u_int16_t duration; u_int8_t ra[6]; u_int8_t bssid[6]; u_int8_t fcs[4]; }; #define CTRL_END_LEN (2+2+6+6+4) struct ctrl_end_ack_t { u_int16_t fc; u_int16_t duration; u_int8_t ra[6]; u_int8_t bssid[6]; u_int8_t fcs[4]; }; #define CTRL_END_ACK_LEN (2+2+6+6+4) #define IV_IV(iv) ((iv) & 0xFFFFFF) #define IV_PAD(iv) (((iv) >> 24) & 0x3F) #define IV_KEYID(iv) (((iv) >> 30) & 0x03) #endif