| /* |
| * Wireless utility functions |
| * |
| * Copyright 2007-2009 Johannes Berg <johannes@sipsolutions.net> |
| * Copyright 2013-2014 Intel Mobile Communications GmbH |
| * Copyright (C) 2018 Intel Corporation |
| */ |
| #include <linux/export.h> |
| #include <net/cfg80211.h> |
| |
| #if CFG80211_VERSION < KERNEL_VERSION(4,1,0) |
| static bool ieee80211_id_in_list(const u8 *ids, int n_ids, u8 id) |
| { |
| int i; |
| |
| for (i = 0; i < n_ids; i++) |
| if (ids[i] == id) |
| return true; |
| return false; |
| } |
| |
| size_t ieee80211_ie_split_ric(const u8 *ies, size_t ielen, |
| const u8 *ids, int n_ids, |
| const u8 *after_ric, int n_after_ric, |
| size_t offset) |
| { |
| size_t pos = offset; |
| |
| while (pos < ielen && ieee80211_id_in_list(ids, n_ids, ies[pos])) { |
| if (ies[pos] == WLAN_EID_RIC_DATA && n_after_ric) { |
| pos += 2 + ies[pos + 1]; |
| |
| while (pos < ielen && |
| !ieee80211_id_in_list(after_ric, n_after_ric, |
| ies[pos])) |
| pos += 2 + ies[pos + 1]; |
| } else { |
| pos += 2 + ies[pos + 1]; |
| } |
| } |
| |
| return pos; |
| } |
| EXPORT_SYMBOL(ieee80211_ie_split_ric); |
| |
| size_t ieee80211_ie_split(const u8 *ies, size_t ielen, |
| const u8 *ids, int n_ids, size_t offset) |
| { |
| return ieee80211_ie_split_ric(ies, ielen, ids, n_ids, NULL, 0, offset); |
| } |
| EXPORT_SYMBOL(ieee80211_ie_split); |
| #endif |
