| Hai Shalom | 74f70d4 | 2019-02-11 14:42:39 -0800 | [diff] [blame] | 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 */ |