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 extern char ocv_errorstr[256]; 31 32 int ocv_derive_all_parameters(struct oci_info *oci); 33 int ocv_insert_oci(struct wpa_channel_info *ci, u8 **argpos); 34 int ocv_insert_oci_kde(struct wpa_channel_info *ci, u8 **argpos); 35 int ocv_insert_extended_oci(struct wpa_channel_info *ci, u8 *pos); 36 int ocv_verify_tx_params(const u8 *oci_ie, size_t oci_ie_len, 37 struct wpa_channel_info *ci, int tx_chanwidth, 38 int tx_seg1_idx); 39 40 #endif /* OCV_H */ 41