^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /* SPDX-License-Identifier: GPL-2.0-only */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Copyright 2002-2004, Instant802 Networks, Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * Copyright 2005, Devicescape Software, Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (C) 2019 Intel Corporation
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #ifndef IEEE80211_KEY_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #define IEEE80211_KEY_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/list.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/crypto.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/rcupdate.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <crypto/arc4.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <net/mac80211.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #define NUM_DEFAULT_KEYS 4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #define NUM_DEFAULT_MGMT_KEYS 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #define NUM_DEFAULT_BEACON_KEYS 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #define INVALID_PTK_KEYIDX 2 /* Keyidx always pointing to a NULL key for PTK */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) struct ieee80211_local;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) struct ieee80211_sub_if_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) struct sta_info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) * enum ieee80211_internal_key_flags - internal key flags
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) * @KEY_FLAG_UPLOADED_TO_HARDWARE: Indicates that this key is present
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) * in the hardware for TX crypto hardware acceleration.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) * @KEY_FLAG_TAINTED: Key is tainted and packets should be dropped.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) * @KEY_FLAG_CIPHER_SCHEME: This key is for a hardware cipher scheme
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) enum ieee80211_internal_key_flags {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) KEY_FLAG_UPLOADED_TO_HARDWARE = BIT(0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) KEY_FLAG_TAINTED = BIT(1),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) KEY_FLAG_CIPHER_SCHEME = BIT(2),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) enum ieee80211_internal_tkip_state {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) TKIP_STATE_NOT_INIT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) TKIP_STATE_PHASE1_DONE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) TKIP_STATE_PHASE1_HW_UPLOADED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) struct tkip_ctx {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) u16 p1k[5]; /* p1k cache */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) u32 p1k_iv32; /* iv32 for which p1k computed */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) enum ieee80211_internal_tkip_state state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) struct tkip_ctx_rx {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) struct tkip_ctx ctx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) u32 iv32; /* current iv32 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) u16 iv16; /* current iv16 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) struct ieee80211_key {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) struct ieee80211_local *local;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) struct ieee80211_sub_if_data *sdata;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) struct sta_info *sta;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) /* for sdata list */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) struct list_head list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) /* protected by key mutex */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) unsigned int flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) union {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) /* protects tx context */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) spinlock_t txlock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) /* last used TSC */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) struct tkip_ctx tx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) /* last received RSC */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) struct tkip_ctx_rx rx[IEEE80211_NUM_TIDS];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) /* number of mic failures */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) u32 mic_failures;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) } tkip;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) * Last received packet number. The first
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) * IEEE80211_NUM_TIDS counters are used with Data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) * frames and the last counter is used with Robust
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) * Management frames.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) u8 rx_pn[IEEE80211_NUM_TIDS + 1][IEEE80211_CCMP_PN_LEN];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) struct crypto_aead *tfm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) u32 replays; /* dot11RSNAStatsCCMPReplays */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) } ccmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) u8 rx_pn[IEEE80211_CMAC_PN_LEN];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) struct crypto_shash *tfm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) u32 replays; /* dot11RSNAStatsCMACReplays */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) u32 icverrors; /* dot11RSNAStatsCMACICVErrors */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) } aes_cmac;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) u8 rx_pn[IEEE80211_GMAC_PN_LEN];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) struct crypto_aead *tfm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) u32 replays; /* dot11RSNAStatsCMACReplays */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) u32 icverrors; /* dot11RSNAStatsCMACICVErrors */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) } aes_gmac;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) /* Last received packet number. The first
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) * IEEE80211_NUM_TIDS counters are used with Data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) * frames and the last counter is used with Robust
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) * Management frames.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) u8 rx_pn[IEEE80211_NUM_TIDS + 1][IEEE80211_GCMP_PN_LEN];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) struct crypto_aead *tfm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) u32 replays; /* dot11RSNAStatsGCMPReplays */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) } gcmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) /* generic cipher scheme */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) u8 rx_pn[IEEE80211_NUM_TIDS + 1][IEEE80211_MAX_PN_LEN];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) } gen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) } u;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) #ifdef CONFIG_MAC80211_DEBUGFS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) struct dentry *stalink;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) struct dentry *dir;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) int cnt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) } debugfs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) unsigned int color;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) * key config, must be last because it contains key
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) * material as variable length member
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) struct ieee80211_key_conf conf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) struct ieee80211_key *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) ieee80211_key_alloc(u32 cipher, int idx, size_t key_len,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) const u8 *key_data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) size_t seq_len, const u8 *seq,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) const struct ieee80211_cipher_scheme *cs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) * Insert a key into data structures (sdata, sta if necessary)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) * to make it used, free old key. On failure, also free the new key.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) int ieee80211_key_link(struct ieee80211_key *key,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) struct ieee80211_sub_if_data *sdata,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) struct sta_info *sta);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) int ieee80211_set_tx_key(struct ieee80211_key *key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) void ieee80211_key_free(struct ieee80211_key *key, bool delay_tailroom);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) void ieee80211_key_free_unused(struct ieee80211_key *key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) void ieee80211_set_default_key(struct ieee80211_sub_if_data *sdata, int idx,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) bool uni, bool multi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) void ieee80211_set_default_mgmt_key(struct ieee80211_sub_if_data *sdata,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) int idx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) void ieee80211_set_default_beacon_key(struct ieee80211_sub_if_data *sdata,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) int idx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) void ieee80211_free_keys(struct ieee80211_sub_if_data *sdata,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) bool force_synchronize);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) void ieee80211_free_sta_keys(struct ieee80211_local *local,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) struct sta_info *sta);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) void ieee80211_reenable_keys(struct ieee80211_sub_if_data *sdata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) #define key_mtx_dereference(local, ref) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) rcu_dereference_protected(ref, lockdep_is_held(&((local)->key_mtx)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) void ieee80211_delayed_tailroom_dec(struct work_struct *wk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) #endif /* IEEE80211_KEY_H */
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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