linux/drivers/net/wireless/marvell/mwifiex/ie.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * NXP Wireless LAN device driver: management IE handling- setting and
 * deleting IE.
 *
 * Copyright 2011-2020 NXP
 */

#include "main.h"

/* This function checks if current IE index is used by any on other interface.
 * Return: -1: yes, current IE index is used by someone else.
 *          0: no, current IE index is NOT used by other interface.
 */
static int
mwifiex_ie_index_used_by_other_intf(struct mwifiex_private *priv, u16 idx)
{ … }

/* Get unused IE index. This index will be used for setting new IE */
static int
mwifiex_ie_get_autoidx(struct mwifiex_private *priv, u16 subtype_mask,
		       struct mwifiex_ie *ie, u16 *index)
{ … }

/* This function prepares IE data buffer for command to be sent to FW */
static int
mwifiex_update_autoindex_ies(struct mwifiex_private *priv,
			     struct mwifiex_ie_list *ie_list)
{ … }

/* Copy individual custom IEs for beacon, probe response and assoc response
 * and prepare single structure for IE setting.
 * This function also updates allocated IE indices from driver.
 */
static int
mwifiex_update_uap_custom_ie(struct mwifiex_private *priv,
			     struct mwifiex_ie *beacon_ie, u16 *beacon_idx,
			     struct mwifiex_ie *pr_ie, u16 *probe_idx,
			     struct mwifiex_ie *ar_ie, u16 *assoc_idx)
{ … }

/* This function checks if the vendor specified IE is present in passed buffer
 * and copies it to mwifiex_ie structure.
 * Function takes pointer to struct mwifiex_ie pointer as argument.
 * If the vendor specified IE is present then memory is allocated for
 * mwifiex_ie pointer and filled in with IE. Caller should take care of freeing
 * this memory.
 */
static int mwifiex_update_vs_ie(const u8 *ies, int ies_len,
				struct mwifiex_ie **ie_ptr, u16 mask,
				unsigned int oui, u8 oui_type)
{ … }

/* This function parses beacon IEs, probe response IEs, association response IEs
 * from cfg80211_ap_settings->beacon and sets these IE to FW.
 */
static int mwifiex_set_mgmt_beacon_data_ies(struct mwifiex_private *priv,
					    struct cfg80211_beacon_data *data)
{ … }

/* This function parses  head and tail IEs, from cfg80211_beacon_data and sets
 * these IE to FW.
 */
static int mwifiex_uap_parse_tail_ies(struct mwifiex_private *priv,
				      struct cfg80211_beacon_data *info)
{ … }

/* This function parses different IEs-head & tail IEs, beacon IEs,
 * probe response IEs, association response IEs from cfg80211_ap_settings
 * function and sets these IE to FW.
 */
int mwifiex_set_mgmt_ies(struct mwifiex_private *priv,
			 struct cfg80211_beacon_data *info)
{ … }

/* This function removes management IE set */
int mwifiex_del_mgmt_ies(struct mwifiex_private *priv)
{ … }