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