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path: root/drivers/net/wireless/mwifiex/ie.c
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Diffstat (limited to 'drivers/net/wireless/mwifiex/ie.c')
-rw-r--r--drivers/net/wireless/mwifiex/ie.c488
1 files changed, 0 insertions, 488 deletions
diff --git a/drivers/net/wireless/mwifiex/ie.c b/drivers/net/wireless/mwifiex/ie.c
deleted file mode 100644
index abf52d25b981..000000000000
--- a/drivers/net/wireless/mwifiex/ie.c
+++ /dev/null
@@ -1,488 +0,0 @@
-/*
- * Marvell Wireless LAN device driver: management IE handling- setting and
- * deleting IE.
- *
- * Copyright (C) 2012-2014, Marvell International Ltd.
- *
- * This software file (the "File") is distributed by Marvell International
- * Ltd. under the terms of the GNU General Public License Version 2, June 1991
- * (the "License"). You may use, redistribute and/or modify this File in
- * accordance with the terms and conditions of the License, a copy of which
- * is available by writing to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
- * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
- *
- * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
- * ARE EXPRESSLY DISCLAIMED. The License provides additional details about
- * this warranty disclaimer.
- */
-
-#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)
-{
- int i;
- struct mwifiex_adapter *adapter = priv->adapter;
- struct mwifiex_ie *ie;
-
- for (i = 0; i < adapter->priv_num; i++) {
- if (adapter->priv[i] != priv) {
- ie = &adapter->priv[i]->mgmt_ie[idx];
- if (ie->mgmt_subtype_mask && ie->ie_length)
- return -1;
- }
- }
-
- return 0;
-}
-
-/* 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)
-{
- u16 mask, len, i;
-
- for (i = 0; i < priv->adapter->max_mgmt_ie_index; i++) {
- mask = le16_to_cpu(priv->mgmt_ie[i].mgmt_subtype_mask);
- len = le16_to_cpu(ie->ie_length);
-
- if (mask == MWIFIEX_AUTO_IDX_MASK)
- continue;
-
- if (mask == subtype_mask) {
- if (len > IEEE_MAX_IE_SIZE)
- continue;
-
- *index = i;
- return 0;
- }
-
- if (!priv->mgmt_ie[i].ie_length) {
- if (mwifiex_ie_index_used_by_other_intf(priv, i))
- continue;
-
- *index = i;
- return 0;
- }
- }
-
- return -1;
-}
-
-/* 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)
-{
- u16 travel_len, index, mask;
- s16 input_len, tlv_len;
- struct mwifiex_ie *ie;
- u8 *tmp;
-
- input_len = le16_to_cpu(ie_list->len);
- travel_len = sizeof(struct mwifiex_ie_types_header);
-
- ie_list->len = 0;
-
- while (input_len >= sizeof(struct mwifiex_ie_types_header)) {
- ie = (struct mwifiex_ie *)(((u8 *)ie_list) + travel_len);
- tlv_len = le16_to_cpu(ie->ie_length);
- travel_len += tlv_len + MWIFIEX_IE_HDR_SIZE;
-
- if (input_len < tlv_len + MWIFIEX_IE_HDR_SIZE)
- return -1;
- index = le16_to_cpu(ie->ie_index);
- mask = le16_to_cpu(ie->mgmt_subtype_mask);
-
- if (index == MWIFIEX_AUTO_IDX_MASK) {
- /* automatic addition */
- if (mwifiex_ie_get_autoidx(priv, mask, ie, &index))
- return -1;
- if (index == MWIFIEX_AUTO_IDX_MASK)
- return -1;
-
- tmp = (u8 *)&priv->mgmt_ie[index].ie_buffer;
- memcpy(tmp, &ie->ie_buffer, le16_to_cpu(ie->ie_length));
- priv->mgmt_ie[index].ie_length = ie->ie_length;
- priv->mgmt_ie[index].ie_index = cpu_to_le16(index);
- priv->mgmt_ie[index].mgmt_subtype_mask =
- cpu_to_le16(mask);
-
- ie->ie_index = cpu_to_le16(index);
- } else {
- if (mask != MWIFIEX_DELETE_MASK)
- return -1;
- /*
- * Check if this index is being used on any
- * other interface.
- */
- if (mwifiex_ie_index_used_by_other_intf(priv, index))
- return -1;
-
- ie->ie_length = 0;
- memcpy(&priv->mgmt_ie[index], ie,
- sizeof(struct mwifiex_ie));
- }
-
- le16_add_cpu(&ie_list->len,
- le16_to_cpu(priv->mgmt_ie[index].ie_length) +
- MWIFIEX_IE_HDR_SIZE);
- input_len -= tlv_len + MWIFIEX_IE_HDR_SIZE;
- }
-
- if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP)
- return mwifiex_send_cmd(priv, HostCmd_CMD_UAP_SYS_CONFIG,
- HostCmd_ACT_GEN_SET,
- UAP_CUSTOM_IE_I, ie_list, false);
-
- return 0;
-}
-
-/* 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)
-{
- struct mwifiex_ie_list *ap_custom_ie;
- u8 *pos;
- u16 len;
- int ret;
-
- ap_custom_ie = kzalloc(sizeof(*ap_custom_ie), GFP_KERNEL);
- if (!ap_custom_ie)
- return -ENOMEM;
-
- ap_custom_ie->type = cpu_to_le16(TLV_TYPE_MGMT_IE);
- pos = (u8 *)ap_custom_ie->ie_list;
-
- if (beacon_ie) {
- len = sizeof(struct mwifiex_ie) - IEEE_MAX_IE_SIZE +
- le16_to_cpu(beacon_ie->ie_length);
- memcpy(pos, beacon_ie, len);
- pos += len;
- le16_add_cpu(&ap_custom_ie->len, len);
- }
- if (pr_ie) {
- len = sizeof(struct mwifiex_ie) - IEEE_MAX_IE_SIZE +
- le16_to_cpu(pr_ie->ie_length);
- memcpy(pos, pr_ie, len);
- pos += len;
- le16_add_cpu(&ap_custom_ie->len, len);
- }
- if (ar_ie) {
- len = sizeof(struct mwifiex_ie) - IEEE_MAX_IE_SIZE +
- le16_to_cpu(ar_ie->ie_length);
- memcpy(pos, ar_ie, len);
- pos += len;
- le16_add_cpu(&ap_custom_ie->len, len);
- }
-
- ret = mwifiex_update_autoindex_ies(priv, ap_custom_ie);
-
- pos = (u8 *)(&ap_custom_ie->ie_list[0].ie_index);
- if (beacon_ie && *beacon_idx == MWIFIEX_AUTO_IDX_MASK) {
- /* save beacon ie index after auto-indexing */
- *beacon_idx = le16_to_cpu(ap_custom_ie->ie_list[0].ie_index);
- len = sizeof(*beacon_ie) - IEEE_MAX_IE_SIZE +
- le16_to_cpu(beacon_ie->ie_length);
- pos += len;
- }
- if (pr_ie && le16_to_cpu(pr_ie->ie_index) == MWIFIEX_AUTO_IDX_MASK) {
- /* save probe resp ie index after auto-indexing */
- *probe_idx = *((u16 *)pos);
- len = sizeof(*pr_ie) - IEEE_MAX_IE_SIZE +
- le16_to_cpu(pr_ie->ie_length);
- pos += len;
- }
- if (ar_ie && le16_to_cpu(ar_ie->ie_index) == MWIFIEX_AUTO_IDX_MASK)
- /* save assoc resp ie index after auto-indexing */
- *assoc_idx = *((u16 *)pos);
-
- kfree(ap_custom_ie);
- return ret;
-}
-
-/* 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)
-{
- struct ieee_types_header *vs_ie;
- struct mwifiex_ie *ie = *ie_ptr;
- const u8 *vendor_ie;
-
- vendor_ie = cfg80211_find_vendor_ie(oui, oui_type, ies, ies_len);
- if (vendor_ie) {
- if (!*ie_ptr) {
- *ie_ptr = kzalloc(sizeof(struct mwifiex_ie),
- GFP_KERNEL);
- if (!*ie_ptr)
- return -ENOMEM;
- ie = *ie_ptr;
- }
-
- vs_ie = (struct ieee_types_header *)vendor_ie;
- memcpy(ie->ie_buffer + le16_to_cpu(ie->ie_length),
- vs_ie, vs_ie->len + 2);
- le16_add_cpu(&ie->ie_length, vs_ie->len + 2);
- ie->mgmt_subtype_mask = cpu_to_le16(mask);
- ie->ie_index = cpu_to_le16(MWIFIEX_AUTO_IDX_MASK);
- }
-
- *ie_ptr = ie;
- return 0;
-}
-
-/* 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)
-{
- struct mwifiex_ie *beacon_ie = NULL, *pr_ie = NULL, *ar_ie = NULL;
- u16 beacon_idx = MWIFIEX_AUTO_IDX_MASK, pr_idx = MWIFIEX_AUTO_IDX_MASK;
- u16 ar_idx = MWIFIEX_AUTO_IDX_MASK;
- int ret = 0;
-
- if (data->beacon_ies && data->beacon_ies_len) {
- mwifiex_update_vs_ie(data->beacon_ies, data->beacon_ies_len,
- &beacon_ie, MGMT_MASK_BEACON,
- WLAN_OUI_MICROSOFT,
- WLAN_OUI_TYPE_MICROSOFT_WPS);
- mwifiex_update_vs_ie(data->beacon_ies, data->beacon_ies_len,
- &beacon_ie, MGMT_MASK_BEACON,
- WLAN_OUI_WFA, WLAN_OUI_TYPE_WFA_P2P);
- }
-
- if (data->proberesp_ies && data->proberesp_ies_len) {
- mwifiex_update_vs_ie(data->proberesp_ies,
- data->proberesp_ies_len, &pr_ie,
- MGMT_MASK_PROBE_RESP, WLAN_OUI_MICROSOFT,
- WLAN_OUI_TYPE_MICROSOFT_WPS);
- mwifiex_update_vs_ie(data->proberesp_ies,
- data->proberesp_ies_len, &pr_ie,
- MGMT_MASK_PROBE_RESP,
- WLAN_OUI_WFA, WLAN_OUI_TYPE_WFA_P2P);
- }
-
- if (data->assocresp_ies && data->assocresp_ies_len) {
- mwifiex_update_vs_ie(data->assocresp_ies,
- data->assocresp_ies_len, &ar_ie,
- MGMT_MASK_ASSOC_RESP |
- MGMT_MASK_REASSOC_RESP,
- WLAN_OUI_MICROSOFT,
- WLAN_OUI_TYPE_MICROSOFT_WPS);
- mwifiex_update_vs_ie(data->assocresp_ies,
- data->assocresp_ies_len, &ar_ie,
- MGMT_MASK_ASSOC_RESP |
- MGMT_MASK_REASSOC_RESP, WLAN_OUI_WFA,
- WLAN_OUI_TYPE_WFA_P2P);
- }
-
- if (beacon_ie || pr_ie || ar_ie) {
- ret = mwifiex_update_uap_custom_ie(priv, beacon_ie,
- &beacon_idx, pr_ie,
- &pr_idx, ar_ie, &ar_idx);
- if (ret)
- goto done;
- }
-
- priv->beacon_idx = beacon_idx;
- priv->proberesp_idx = pr_idx;
- priv->assocresp_idx = ar_idx;
-
-done:
- kfree(beacon_ie);
- kfree(pr_ie);
- kfree(ar_ie);
-
- return ret;
-}
-
-/* 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)
-{
- struct mwifiex_ie *gen_ie;
- struct ieee_types_header *hdr;
- struct ieee80211_vendor_ie *vendorhdr;
- u16 gen_idx = MWIFIEX_AUTO_IDX_MASK, ie_len = 0;
- int left_len, parsed_len = 0;
-
- if (!info->tail || !info->tail_len)
- return 0;
-
- gen_ie = kzalloc(sizeof(*gen_ie), GFP_KERNEL);
- if (!gen_ie)
- return -ENOMEM;
-
- left_len = info->tail_len;
-
- /* Many IEs are generated in FW by parsing bss configuration.
- * Let's not add them here; else we may end up duplicating these IEs
- */
- while (left_len > sizeof(struct ieee_types_header)) {
- hdr = (void *)(info->tail + parsed_len);
- switch (hdr->element_id) {
- case WLAN_EID_SSID:
- case WLAN_EID_SUPP_RATES:
- case WLAN_EID_COUNTRY:
- case WLAN_EID_PWR_CONSTRAINT:
- case WLAN_EID_EXT_SUPP_RATES:
- case WLAN_EID_HT_CAPABILITY:
- case WLAN_EID_HT_OPERATION:
- case WLAN_EID_VHT_CAPABILITY:
- case WLAN_EID_VHT_OPERATION:
- case WLAN_EID_VENDOR_SPECIFIC:
- break;
- default:
- memcpy(gen_ie->ie_buffer + ie_len, hdr,
- hdr->len + sizeof(struct ieee_types_header));
- ie_len += hdr->len + sizeof(struct ieee_types_header);
- break;
- }
- left_len -= hdr->len + sizeof(struct ieee_types_header);
- parsed_len += hdr->len + sizeof(struct ieee_types_header);
- }
-
- /* parse only WPA vendor IE from tail, WMM IE is configured by
- * bss_config command
- */
- vendorhdr = (void *)cfg80211_find_vendor_ie(WLAN_OUI_MICROSOFT,
- WLAN_OUI_TYPE_MICROSOFT_WPA,
- info->tail, info->tail_len);
- if (vendorhdr) {
- memcpy(gen_ie->ie_buffer + ie_len, vendorhdr,
- vendorhdr->len + sizeof(struct ieee_types_header));
- ie_len += vendorhdr->len + sizeof(struct ieee_types_header);
- }
-
- if (!ie_len) {
- kfree(gen_ie);
- return 0;
- }
-
- gen_ie->ie_index = cpu_to_le16(gen_idx);
- gen_ie->mgmt_subtype_mask = cpu_to_le16(MGMT_MASK_BEACON |
- MGMT_MASK_PROBE_RESP |
- MGMT_MASK_ASSOC_RESP);
- gen_ie->ie_length = cpu_to_le16(ie_len);
-
- if (mwifiex_update_uap_custom_ie(priv, gen_ie, &gen_idx, NULL, NULL,
- NULL, NULL)) {
- kfree(gen_ie);
- return -1;
- }
-
- priv->gen_idx = gen_idx;
- kfree(gen_ie);
- return 0;
-}
-
-/* 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)
-{
- int ret;
-
- ret = mwifiex_uap_parse_tail_ies(priv, info);
-
- if (ret)
- return ret;
-
- return mwifiex_set_mgmt_beacon_data_ies(priv, info);
-}
-
-/* This function removes management IE set */
-int mwifiex_del_mgmt_ies(struct mwifiex_private *priv)
-{
- struct mwifiex_ie *beacon_ie = NULL, *pr_ie = NULL;
- struct mwifiex_ie *ar_ie = NULL, *gen_ie = NULL;
- int ret = 0;
-
- if (priv->gen_idx != MWIFIEX_AUTO_IDX_MASK) {
- gen_ie = kmalloc(sizeof(*gen_ie), GFP_KERNEL);
- if (!gen_ie)
- return -ENOMEM;
-
- gen_ie->ie_index = cpu_to_le16(priv->gen_idx);
- gen_ie->mgmt_subtype_mask = cpu_to_le16(MWIFIEX_DELETE_MASK);
- gen_ie->ie_length = 0;
- if (mwifiex_update_uap_custom_ie(priv, gen_ie, &priv->gen_idx,
- NULL, &priv->proberesp_idx,
- NULL, &priv->assocresp_idx)) {
- ret = -1;
- goto done;
- }
-
- priv->gen_idx = MWIFIEX_AUTO_IDX_MASK;
- }
-
- if (priv->beacon_idx != MWIFIEX_AUTO_IDX_MASK) {
- beacon_ie = kmalloc(sizeof(struct mwifiex_ie), GFP_KERNEL);
- if (!beacon_ie) {
- ret = -ENOMEM;
- goto done;
- }
- beacon_ie->ie_index = cpu_to_le16(priv->beacon_idx);
- beacon_ie->mgmt_subtype_mask = cpu_to_le16(MWIFIEX_DELETE_MASK);
- beacon_ie->ie_length = 0;
- }
- if (priv->proberesp_idx != MWIFIEX_AUTO_IDX_MASK) {
- pr_ie = kmalloc(sizeof(struct mwifiex_ie), GFP_KERNEL);
- if (!pr_ie) {
- ret = -ENOMEM;
- goto done;
- }
- pr_ie->ie_index = cpu_to_le16(priv->proberesp_idx);
- pr_ie->mgmt_subtype_mask = cpu_to_le16(MWIFIEX_DELETE_MASK);
- pr_ie->ie_length = 0;
- }
- if (priv->assocresp_idx != MWIFIEX_AUTO_IDX_MASK) {
- ar_ie = kmalloc(sizeof(struct mwifiex_ie), GFP_KERNEL);
- if (!ar_ie) {
- ret = -ENOMEM;
- goto done;
- }
- ar_ie->ie_index = cpu_to_le16(priv->assocresp_idx);
- ar_ie->mgmt_subtype_mask = cpu_to_le16(MWIFIEX_DELETE_MASK);
- ar_ie->ie_length = 0;
- }
-
- if (beacon_ie || pr_ie || ar_ie)
- ret = mwifiex_update_uap_custom_ie(priv,
- beacon_ie, &priv->beacon_idx,
- pr_ie, &priv->proberesp_idx,
- ar_ie, &priv->assocresp_idx);
-
-done:
- kfree(gen_ie);
- kfree(beacon_ie);
- kfree(pr_ie);
- kfree(ar_ie);
-
- return ret;
-}