1e5b75505Sopenharmony_ci/*
2e5b75505Sopenharmony_ci * Operating Channel Validation (OCV)
3e5b75505Sopenharmony_ci * Copyright (c) 2018, Mathy Vanhoef
4e5b75505Sopenharmony_ci *
5e5b75505Sopenharmony_ci * This software may be distributed under the terms of the BSD license.
6e5b75505Sopenharmony_ci * See README for more details.
7e5b75505Sopenharmony_ci */
8e5b75505Sopenharmony_ci
9e5b75505Sopenharmony_ci#ifndef OCV_H
10e5b75505Sopenharmony_ci#define OCV_H
11e5b75505Sopenharmony_ci
12e5b75505Sopenharmony_cistruct wpa_channel_info;
13e5b75505Sopenharmony_ci
14e5b75505Sopenharmony_cistruct oci_info {
15e5b75505Sopenharmony_ci	/* Values in the OCI element */
16e5b75505Sopenharmony_ci	u8 op_class;
17e5b75505Sopenharmony_ci	u8 channel;
18e5b75505Sopenharmony_ci	u8 seg1_idx;
19e5b75505Sopenharmony_ci
20e5b75505Sopenharmony_ci	/* Derived values for easier verification */
21e5b75505Sopenharmony_ci	int freq;
22e5b75505Sopenharmony_ci	int sec_channel;
23e5b75505Sopenharmony_ci	int chanwidth;
24e5b75505Sopenharmony_ci};
25e5b75505Sopenharmony_ci
26e5b75505Sopenharmony_ci#define OCV_OCI_LEN		3
27e5b75505Sopenharmony_ci#define OCV_OCI_EXTENDED_LEN	(3 + OCV_OCI_LEN)
28e5b75505Sopenharmony_ci#define OCV_OCI_KDE_LEN		(2 + RSN_SELECTOR_LEN + OCV_OCI_LEN)
29e5b75505Sopenharmony_ci
30e5b75505Sopenharmony_ciextern char ocv_errorstr[256];
31e5b75505Sopenharmony_ci
32e5b75505Sopenharmony_ciint ocv_derive_all_parameters(struct oci_info *oci);
33e5b75505Sopenharmony_ciint ocv_insert_oci(struct wpa_channel_info *ci, u8 **argpos);
34e5b75505Sopenharmony_ciint ocv_insert_oci_kde(struct wpa_channel_info *ci, u8 **argpos);
35e5b75505Sopenharmony_ciint ocv_insert_extended_oci(struct wpa_channel_info *ci, u8 *pos);
36e5b75505Sopenharmony_ciint ocv_verify_tx_params(const u8 *oci_ie, size_t oci_ie_len,
37e5b75505Sopenharmony_ci			 struct wpa_channel_info *ci, int tx_chanwidth,
38e5b75505Sopenharmony_ci			 int tx_seg1_idx);
39e5b75505Sopenharmony_ci
40e5b75505Sopenharmony_ci#endif /* OCV_H */
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