1*03f9172cSAndroid Build Coastguard Worker /* 2*03f9172cSAndroid Build Coastguard Worker * Operating Channel Validation (OCV) 3*03f9172cSAndroid Build Coastguard Worker * Copyright (c) 2018, Mathy Vanhoef 4*03f9172cSAndroid Build Coastguard Worker * 5*03f9172cSAndroid Build Coastguard Worker * This software may be distributed under the terms of the BSD license. 6*03f9172cSAndroid Build Coastguard Worker * See README for more details. 7*03f9172cSAndroid Build Coastguard Worker */ 8*03f9172cSAndroid Build Coastguard Worker 9*03f9172cSAndroid Build Coastguard Worker #ifndef OCV_H 10*03f9172cSAndroid Build Coastguard Worker #define OCV_H 11*03f9172cSAndroid Build Coastguard Worker 12*03f9172cSAndroid Build Coastguard Worker struct wpa_channel_info; 13*03f9172cSAndroid Build Coastguard Worker 14*03f9172cSAndroid Build Coastguard Worker struct oci_info { 15*03f9172cSAndroid Build Coastguard Worker /* Values in the OCI element */ 16*03f9172cSAndroid Build Coastguard Worker u8 op_class; 17*03f9172cSAndroid Build Coastguard Worker u8 channel; 18*03f9172cSAndroid Build Coastguard Worker u8 seg1_idx; 19*03f9172cSAndroid Build Coastguard Worker 20*03f9172cSAndroid Build Coastguard Worker /* Derived values for easier verification */ 21*03f9172cSAndroid Build Coastguard Worker int freq; 22*03f9172cSAndroid Build Coastguard Worker int sec_channel; 23*03f9172cSAndroid Build Coastguard Worker int chanwidth; 24*03f9172cSAndroid Build Coastguard Worker }; 25*03f9172cSAndroid Build Coastguard Worker 26*03f9172cSAndroid Build Coastguard Worker #define OCV_OCI_LEN 3 27*03f9172cSAndroid Build Coastguard Worker #define OCV_OCI_EXTENDED_LEN (3 + OCV_OCI_LEN) 28*03f9172cSAndroid Build Coastguard Worker #define OCV_OCI_KDE_LEN (2 + RSN_SELECTOR_LEN + OCV_OCI_LEN) 29*03f9172cSAndroid Build Coastguard Worker 30*03f9172cSAndroid Build Coastguard Worker enum oci_verify_result { 31*03f9172cSAndroid Build Coastguard Worker OCI_SUCCESS, OCI_NOT_FOUND, OCI_INVALID_LENGTH, OCI_PARSE_ERROR, 32*03f9172cSAndroid Build Coastguard Worker OCI_PRIMARY_FREQ_MISMATCH, OCI_CHANNEL_WIDTH_MISMATCH, 33*03f9172cSAndroid Build Coastguard Worker OCI_SECONDARY_FREQ_MISMATCH, OCI_SEG_1_INDEX_MISMATCH 34*03f9172cSAndroid Build Coastguard Worker }; 35*03f9172cSAndroid Build Coastguard Worker 36*03f9172cSAndroid Build Coastguard Worker extern char ocv_errorstr[256]; 37*03f9172cSAndroid Build Coastguard Worker 38*03f9172cSAndroid Build Coastguard Worker int ocv_derive_all_parameters(struct oci_info *oci); 39*03f9172cSAndroid Build Coastguard Worker int ocv_insert_oci(struct wpa_channel_info *ci, u8 **argpos); 40*03f9172cSAndroid Build Coastguard Worker int ocv_insert_oci_kde(struct wpa_channel_info *ci, u8 **argpos); 41*03f9172cSAndroid Build Coastguard Worker int ocv_insert_extended_oci(struct wpa_channel_info *ci, u8 *pos); 42*03f9172cSAndroid Build Coastguard Worker enum oci_verify_result 43*03f9172cSAndroid Build Coastguard Worker ocv_verify_tx_params(const u8 *oci_ie, size_t oci_ie_len, 44*03f9172cSAndroid Build Coastguard Worker struct wpa_channel_info *ci, int tx_chanwidth, 45*03f9172cSAndroid Build Coastguard Worker int tx_seg1_idx); 46*03f9172cSAndroid Build Coastguard Worker 47*03f9172cSAndroid Build Coastguard Worker #endif /* OCV_H */ 48