From 274bfb8dc5ffa16cb073801bebe76ab7f4e2e73d Mon Sep 17 00:00:00 2001 From: "John W. Linville" Date: Wed, 29 Oct 2008 11:35:05 -0400 Subject: lib80211: absorb crypto bits from net/ieee80211 These bits are shared already between ipw2x00 and hostap, and could probably be shared both more cleanly and with other drivers. This commit simply relocates the code to lib80211 and adjusts the drivers appropriately. Signed-off-by: John W. Linville --- drivers/net/wireless/hostap/Kconfig | 6 +- drivers/net/wireless/hostap/hostap.h | 2 +- drivers/net/wireless/hostap/hostap_80211.h | 2 +- drivers/net/wireless/hostap/hostap_80211_rx.c | 10 +- drivers/net/wireless/hostap/hostap_80211_tx.c | 8 +- drivers/net/wireless/hostap/hostap_ap.c | 12 +- drivers/net/wireless/hostap/hostap_ap.h | 8 +- drivers/net/wireless/hostap/hostap_hw.c | 36 +- drivers/net/wireless/hostap/hostap_ioctl.c | 110 ++-- drivers/net/wireless/hostap/hostap_main.c | 19 +- drivers/net/wireless/hostap/hostap_proc.c | 20 +- drivers/net/wireless/hostap/hostap_wlan.h | 6 +- drivers/net/wireless/ipw2100.c | 12 +- drivers/net/wireless/ipw2200.c | 12 +- include/net/ieee80211.h | 10 +- include/net/ieee80211_crypt.h | 108 ---- include/net/lib80211.h | 108 ++++ net/ieee80211/Kconfig | 15 +- net/ieee80211/Makefile | 4 - net/ieee80211/ieee80211_crypt.c | 206 ------- net/ieee80211/ieee80211_crypt_ccmp.c | 492 ---------------- net/ieee80211/ieee80211_crypt_tkip.c | 782 ------------------------- net/ieee80211/ieee80211_crypt_wep.c | 295 ---------- net/ieee80211/ieee80211_module.c | 23 +- net/ieee80211/ieee80211_rx.c | 8 +- net/ieee80211/ieee80211_tx.c | 7 +- net/ieee80211/ieee80211_wx.c | 68 +-- net/wireless/Kconfig | 9 + net/wireless/Makefile | 3 + net/wireless/lib80211.c | 191 ++++++- net/wireless/lib80211_crypt_ccmp.c | 492 ++++++++++++++++ net/wireless/lib80211_crypt_tkip.c | 784 ++++++++++++++++++++++++++ net/wireless/lib80211_crypt_wep.c | 296 ++++++++++ 33 files changed, 2075 insertions(+), 2089 deletions(-) delete mode 100644 include/net/ieee80211_crypt.h delete mode 100644 net/ieee80211/ieee80211_crypt.c delete mode 100644 net/ieee80211/ieee80211_crypt_ccmp.c delete mode 100644 net/ieee80211/ieee80211_crypt_tkip.c delete mode 100644 net/ieee80211/ieee80211_crypt_wep.c create mode 100644 net/wireless/lib80211_crypt_ccmp.c create mode 100644 net/wireless/lib80211_crypt_tkip.c create mode 100644 net/wireless/lib80211_crypt_wep.c diff --git a/drivers/net/wireless/hostap/Kconfig b/drivers/net/wireless/hostap/Kconfig index 1fef33169fdd..87bbd4db4bad 100644 --- a/drivers/net/wireless/hostap/Kconfig +++ b/drivers/net/wireless/hostap/Kconfig @@ -2,8 +2,10 @@ config HOSTAP tristate "IEEE 802.11 for Host AP (Prism2/2.5/3 and WEP/TKIP/CCMP)" depends on WLAN_80211 select WIRELESS_EXT - select IEEE80211 - select IEEE80211_CRYPT_WEP + select LIB80211 + select LIB80211_CRYPT_WEP + select LIB80211_CRYPT_TKIP + select LIB80211_CRYPT_CCMP ---help--- Shared driver code for IEEE 802.11b wireless cards based on Intersil Prism2/2.5/3 chipset. This driver supports so called diff --git a/drivers/net/wireless/hostap/hostap.h b/drivers/net/wireless/hostap/hostap.h index 3a386a636cca..2453deaa3e00 100644 --- a/drivers/net/wireless/hostap/hostap.h +++ b/drivers/net/wireless/hostap/hostap.h @@ -63,7 +63,7 @@ void ap_control_flush_macs(struct mac_restrictions *mac_restrictions); int ap_control_kick_mac(struct ap_data *ap, struct net_device *dev, u8 *mac); void ap_control_kickall(struct ap_data *ap); void * ap_crypt_get_ptrs(struct ap_data *ap, u8 *addr, int permanent, - struct ieee80211_crypt_data ***crypt); + struct lib80211_crypt_data ***crypt); int prism2_ap_get_sta_qual(local_info_t *local, struct sockaddr addr[], struct iw_quality qual[], int buf_size, int aplist); diff --git a/drivers/net/wireless/hostap/hostap_80211.h b/drivers/net/wireless/hostap/hostap_80211.h index 3694b1eba521..3a9474d9a907 100644 --- a/drivers/net/wireless/hostap/hostap_80211.h +++ b/drivers/net/wireless/hostap/hostap_80211.h @@ -2,7 +2,7 @@ #define HOSTAP_80211_H #include -#include +#include struct hostap_ieee80211_mgmt { __le16 frame_control; diff --git a/drivers/net/wireless/hostap/hostap_80211_rx.c b/drivers/net/wireless/hostap/hostap_80211_rx.c index 5f64461aa54e..19b1bf0478bd 100644 --- a/drivers/net/wireless/hostap/hostap_80211_rx.c +++ b/drivers/net/wireless/hostap/hostap_80211_rx.c @@ -1,5 +1,5 @@ #include -#include +#include #include "hostap_80211.h" #include "hostap.h" @@ -649,7 +649,7 @@ static int hostap_is_eapol_frame(local_info_t *local, struct sk_buff *skb) /* Called only as a tasklet (software IRQ) */ static int hostap_rx_frame_decrypt(local_info_t *local, struct sk_buff *skb, - struct ieee80211_crypt_data *crypt) + struct lib80211_crypt_data *crypt) { struct ieee80211_hdr_4addr *hdr; int res, hdrlen; @@ -687,7 +687,7 @@ hostap_rx_frame_decrypt(local_info_t *local, struct sk_buff *skb, /* Called only as a tasklet (software IRQ) */ static int hostap_rx_frame_decrypt_msdu(local_info_t *local, struct sk_buff *skb, - int keyidx, struct ieee80211_crypt_data *crypt) + int keyidx, struct lib80211_crypt_data *crypt) { struct ieee80211_hdr_4addr *hdr; int res, hdrlen; @@ -733,7 +733,7 @@ void hostap_80211_rx(struct net_device *dev, struct sk_buff *skb, int from_assoc_ap = 0; u8 dst[ETH_ALEN]; u8 src[ETH_ALEN]; - struct ieee80211_crypt_data *crypt = NULL; + struct lib80211_crypt_data *crypt = NULL; void *sta = NULL; int keyidx = 0; @@ -785,7 +785,7 @@ void hostap_80211_rx(struct net_device *dev, struct sk_buff *skb, int idx = 0; if (skb->len >= hdrlen + 3) idx = skb->data[hdrlen + 3] >> 6; - crypt = local->crypt[idx]; + crypt = local->crypt_info.crypt[idx]; sta = NULL; /* Use station specific key to override default keys if the diff --git a/drivers/net/wireless/hostap/hostap_80211_tx.c b/drivers/net/wireless/hostap/hostap_80211_tx.c index 075247188e64..078a010f39a0 100644 --- a/drivers/net/wireless/hostap/hostap_80211_tx.c +++ b/drivers/net/wireless/hostap/hostap_80211_tx.c @@ -306,7 +306,7 @@ int hostap_mgmt_start_xmit(struct sk_buff *skb, struct net_device *dev) /* Called only from software IRQ */ static struct sk_buff * hostap_tx_encrypt(struct sk_buff *skb, - struct ieee80211_crypt_data *crypt) + struct lib80211_crypt_data *crypt) { struct hostap_interface *iface; local_info_t *local; @@ -405,7 +405,7 @@ int hostap_master_start_xmit(struct sk_buff *skb, struct net_device *dev) if (local->host_encrypt) { /* Set crypt to default algorithm and key; will be replaced in * AP code if STA has own alg/key */ - tx.crypt = local->crypt[local->tx_keyidx]; + tx.crypt = local->crypt_info.crypt[local->crypt_info.tx_keyidx]; tx.host_encrypt = 1; } else { tx.crypt = NULL; @@ -487,7 +487,9 @@ int hostap_master_start_xmit(struct sk_buff *skb, struct net_device *dev) if (tx.crypt && (!tx.crypt->ops || !tx.crypt->ops->encrypt_mpdu)) tx.crypt = NULL; - else if ((tx.crypt || local->crypt[local->tx_keyidx]) && !no_encrypt) { + else if ((tx.crypt || + local->crypt_info.crypt[local->crypt_info.tx_keyidx]) && + !no_encrypt) { /* Add ISWEP flag both for firmware and host based encryption */ fc |= IEEE80211_FCTL_PROTECTED; diff --git a/drivers/net/wireless/hostap/hostap_ap.c b/drivers/net/wireless/hostap/hostap_ap.c index dec3dbe1bf8f..0903db786d5f 100644 --- a/drivers/net/wireless/hostap/hostap_ap.c +++ b/drivers/net/wireless/hostap/hostap_ap.c @@ -1206,7 +1206,7 @@ static void prism2_check_tx_rates(struct sta_info *sta) static void ap_crypt_init(struct ap_data *ap) { - ap->crypt = ieee80211_get_crypto_ops("WEP"); + ap->crypt = lib80211_get_crypto_ops("WEP"); if (ap->crypt) { if (ap->crypt->init) { @@ -1224,7 +1224,7 @@ static void ap_crypt_init(struct ap_data *ap) if (ap->crypt == NULL) { printk(KERN_WARNING "AP could not initialize WEP: load module " - "ieee80211_crypt_wep.ko\n"); + "lib80211_crypt_wep.ko\n"); } } @@ -1293,7 +1293,7 @@ static void handle_authen(local_info_t *local, struct sk_buff *skb, __le16 *pos; u16 resp = WLAN_STATUS_SUCCESS, fc; struct sta_info *sta = NULL; - struct ieee80211_crypt_data *crypt; + struct lib80211_crypt_data *crypt; char *txt = ""; len = skb->len - IEEE80211_MGMT_HDR_LEN; @@ -1319,7 +1319,7 @@ static void handle_authen(local_info_t *local, struct sk_buff *skb, int idx = 0; if (skb->len >= hdrlen + 3) idx = skb->data[hdrlen + 3] >> 6; - crypt = local->crypt[idx]; + crypt = local->crypt_info.crypt[idx]; } pos = (__le16 *) (skb->data + IEEE80211_MGMT_HDR_LEN); @@ -3065,7 +3065,7 @@ ap_rx_ret hostap_handle_sta_rx(local_info_t *local, struct net_device *dev, /* Called only as a tasklet (software IRQ) */ int hostap_handle_sta_crypto(local_info_t *local, struct ieee80211_hdr_4addr *hdr, - struct ieee80211_crypt_data **crypt, + struct lib80211_crypt_data **crypt, void **sta_ptr) { struct sta_info *sta; @@ -3213,7 +3213,7 @@ void hostap_update_rates(local_info_t *local) void * ap_crypt_get_ptrs(struct ap_data *ap, u8 *addr, int permanent, - struct ieee80211_crypt_data ***crypt) + struct lib80211_crypt_data ***crypt) { struct sta_info *sta; diff --git a/drivers/net/wireless/hostap/hostap_ap.h b/drivers/net/wireless/hostap/hostap_ap.h index 2fa2452b6b07..d36e4b175336 100644 --- a/drivers/net/wireless/hostap/hostap_ap.h +++ b/drivers/net/wireless/hostap/hostap_ap.h @@ -74,7 +74,7 @@ struct sta_info { u32 tx_since_last_failure; u32 tx_consecutive_exc; - struct ieee80211_crypt_data *crypt; + struct lib80211_crypt_data *crypt; int ap; /* whether this station is an AP */ @@ -209,7 +209,7 @@ struct ap_data { /* WEP operations for generating challenges to be used with shared key * authentication */ - struct ieee80211_crypto_ops *crypt; + struct lib80211_crypto_ops *crypt; void *crypt_priv; #endif /* PRISM2_NO_KERNEL_IEEE80211_MGMT */ }; @@ -229,7 +229,7 @@ typedef enum { struct hostap_tx_data { struct sk_buff *skb; int host_encrypt; - struct ieee80211_crypt_data *crypt; + struct lib80211_crypt_data *crypt; void *sta_ptr; }; ap_tx_ret hostap_handle_sta_tx(local_info_t *local, struct hostap_tx_data *tx); @@ -244,7 +244,7 @@ ap_rx_ret hostap_handle_sta_rx(local_info_t *local, struct net_device *dev, struct hostap_80211_rx_status *rx_stats, int wds); int hostap_handle_sta_crypto(local_info_t *local, struct ieee80211_hdr_4addr *hdr, - struct ieee80211_crypt_data **crypt, + struct lib80211_crypt_data **crypt, void **sta_ptr); int hostap_is_sta_assoc(struct ap_data *ap, u8 *sta_addr); int hostap_is_sta_authorized(struct ap_data *ap, u8 *sta_addr); diff --git a/drivers/net/wireless/hostap/hostap_hw.c b/drivers/net/wireless/hostap/hostap_hw.c index fd7f7ceeac46..066299fc9259 100644 --- a/drivers/net/wireless/hostap/hostap_hw.c +++ b/drivers/net/wireless/hostap/hostap_hw.c @@ -47,7 +47,7 @@ #include #include #include -#include +#include #include #include "hostap_80211.h" @@ -2791,11 +2791,12 @@ static void prism2_check_sta_fw_version(local_info_t *local) static void prism2_crypt_deinit_entries(local_info_t *local, int force) { struct list_head *ptr, *n; - struct ieee80211_crypt_data *entry; + struct lib80211_crypt_data *entry; - for (ptr = local->crypt_deinit_list.next, n = ptr->next; - ptr != &local->crypt_deinit_list; ptr = n, n = ptr->next) { - entry = list_entry(ptr, struct ieee80211_crypt_data, list); + for (ptr = local->crypt_info.crypt_deinit_list.next, n = ptr->next; + ptr != &local->crypt_info.crypt_deinit_list; + ptr = n, n = ptr->next) { + entry = list_entry(ptr, struct lib80211_crypt_data, list); if (atomic_read(&entry->refcnt) != 0 && !force) continue; @@ -2816,11 +2817,11 @@ static void prism2_crypt_deinit_handler(unsigned long data) spin_lock_irqsave(&local->lock, flags); prism2_crypt_deinit_entries(local, 0); - if (!list_empty(&local->crypt_deinit_list)) { + if (!list_empty(&local->crypt_info.crypt_deinit_list)) { printk(KERN_DEBUG "%s: entries remaining in delayed crypt " "deletion list\n", local->dev->name); - local->crypt_deinit_timer.expires = jiffies + HZ; - add_timer(&local->crypt_deinit_timer); + local->crypt_info.crypt_deinit_timer.expires = jiffies + HZ; + add_timer(&local->crypt_info.crypt_deinit_timer); } spin_unlock_irqrestore(&local->lock, flags); @@ -3250,10 +3251,13 @@ while (0) INIT_LIST_HEAD(&local->cmd_queue); init_waitqueue_head(&local->hostscan_wq); - INIT_LIST_HEAD(&local->crypt_deinit_list); - init_timer(&local->crypt_deinit_timer); - local->crypt_deinit_timer.data = (unsigned long) local; - local->crypt_deinit_timer.function = prism2_crypt_deinit_handler; + + local->crypt_info.name = dev->name; + local->crypt_info.lock = &local->lock; + INIT_LIST_HEAD(&local->crypt_info.crypt_deinit_list); + init_timer(&local->crypt_info.crypt_deinit_timer); + local->crypt_info.crypt_deinit_timer.data = (unsigned long) local; + local->crypt_info.crypt_deinit_timer.function = prism2_crypt_deinit_handler; init_timer(&local->passive_scan_timer); local->passive_scan_timer.data = (unsigned long) local; @@ -3354,8 +3358,8 @@ static void prism2_free_local_data(struct net_device *dev) flush_scheduled_work(); - if (timer_pending(&local->crypt_deinit_timer)) - del_timer(&local->crypt_deinit_timer); + if (timer_pending(&local->crypt_info.crypt_deinit_timer)) + del_timer(&local->crypt_info.crypt_deinit_timer); prism2_crypt_deinit_entries(local, 1); if (timer_pending(&local->passive_scan_timer)) @@ -3374,12 +3378,12 @@ static void prism2_free_local_data(struct net_device *dev) prism2_callback(local, PRISM2_CALLBACK_DISABLE); for (i = 0; i < WEP_KEYS; i++) { - struct ieee80211_crypt_data *crypt = local->crypt[i]; + struct lib80211_crypt_data *crypt = local->crypt_info.crypt[i]; if (crypt) { if (crypt->ops) crypt->ops->deinit(crypt->priv); kfree(crypt); - local->crypt[i] = NULL; + local->crypt_info.crypt[i] = NULL; } } diff --git a/drivers/net/wireless/hostap/hostap_ioctl.c b/drivers/net/wireless/hostap/hostap_ioctl.c index 2318c5df7a08..29aebb679099 100644 --- a/drivers/net/wireless/hostap/hostap_ioctl.c +++ b/drivers/net/wireless/hostap/hostap_ioctl.c @@ -2,7 +2,7 @@ #include #include -#include +#include #include "hostap_wlan.h" #include "hostap.h" @@ -117,9 +117,9 @@ static int prism2_get_name(struct net_device *dev, static void prism2_crypt_delayed_deinit(local_info_t *local, - struct ieee80211_crypt_data **crypt) + struct lib80211_crypt_data **crypt) { - struct ieee80211_crypt_data *tmp; + struct lib80211_crypt_data *tmp; unsigned long flags; tmp = *crypt; @@ -133,10 +133,10 @@ static void prism2_crypt_delayed_deinit(local_info_t *local, * locking. */ spin_lock_irqsave(&local->lock, flags); - list_add(&tmp->list, &local->crypt_deinit_list); - if (!timer_pending(&local->crypt_deinit_timer)) { - local->crypt_deinit_timer.expires = jiffies + HZ; - add_timer(&local->crypt_deinit_timer); + list_add(&tmp->list, &local->crypt_info.crypt_deinit_list); + if (!timer_pending(&local->crypt_info.crypt_deinit_timer)) { + local->crypt_info.crypt_deinit_timer.expires = jiffies + HZ; + add_timer(&local->crypt_info.crypt_deinit_timer); } spin_unlock_irqrestore(&local->lock, flags); } @@ -149,20 +149,20 @@ static int prism2_ioctl_siwencode(struct net_device *dev, struct hostap_interface *iface; local_info_t *local; int i; - struct ieee80211_crypt_data **crypt; + struct lib80211_crypt_data **crypt; iface = netdev_priv(dev); local = iface->local; i = erq->flags & IW_ENCODE_INDEX; if (i < 1 || i > 4) - i = local->tx_keyidx; + i = local->crypt_info.tx_keyidx; else i--; if (i < 0 || i >= WEP_KEYS) return -EINVAL; - crypt = &local->crypt[i]; + crypt = &local->crypt_info.crypt[i]; if (erq->flags & IW_ENCODE_DISABLED) { if (*crypt) @@ -177,17 +177,17 @@ static int prism2_ioctl_siwencode(struct net_device *dev, } if (*crypt == NULL) { - struct ieee80211_crypt_data *new_crypt; + struct lib80211_crypt_data *new_crypt; /* take WEP into use */ - new_crypt = kzalloc(sizeof(struct ieee80211_crypt_data), + new_crypt = kzalloc(sizeof(struct lib80211_crypt_data), GFP_KERNEL); if (new_crypt == NULL) return -ENOMEM; - new_crypt->ops = ieee80211_get_crypto_ops("WEP"); + new_crypt->ops = lib80211_get_crypto_ops("WEP"); if (!new_crypt->ops) { - request_module("ieee80211_crypt_wep"); - new_crypt->ops = ieee80211_get_crypto_ops("WEP"); + request_module("lib80211_crypt_wep"); + new_crypt->ops = lib80211_get_crypto_ops("WEP"); } if (new_crypt->ops) new_crypt->priv = new_crypt->ops->init(i); @@ -210,16 +210,16 @@ static int prism2_ioctl_siwencode(struct net_device *dev, memset(keybuf + erq->length, 0, len - erq->length); (*crypt)->ops->set_key(keybuf, len, NULL, (*crypt)->priv); for (j = 0; j < WEP_KEYS; j++) { - if (j != i && local->crypt[j]) { + if (j != i && local->crypt_info.crypt[j]) { first = 0; break; } } if (first) - local->tx_keyidx = i; + local->crypt_info.tx_keyidx = i; } else { /* No key data - just set the default TX key index */ - local->tx_keyidx = i; + local->crypt_info.tx_keyidx = i; } done: @@ -252,20 +252,20 @@ static int prism2_ioctl_giwencode(struct net_device *dev, local_info_t *local; int i, len; u16 val; - struct ieee80211_crypt_data *crypt; + struct lib80211_crypt_data *crypt; iface = netdev_priv(dev); local = iface->local; i = erq->flags & IW_ENCODE_INDEX; if (i < 1 || i > 4) - i = local->tx_keyidx; + i = local->crypt_info.tx_keyidx; else i--; if (i < 0 || i >= WEP_KEYS) return -EINVAL; - crypt = local->crypt[i]; + crypt = local->crypt_info.crypt[i]; erq->flags = i + 1; if (crypt == NULL || crypt->ops == NULL) { @@ -3227,8 +3227,8 @@ static int prism2_ioctl_siwencodeext(struct net_device *dev, local_info_t *local = iface->local; struct iw_encode_ext *ext = (struct iw_encode_ext *) extra; int i, ret = 0; - struct ieee80211_crypto_ops *ops; - struct ieee80211_crypt_data **crypt; + struct lib80211_crypto_ops *ops; + struct lib80211_crypt_data **crypt; void *sta_ptr; u8 *addr; const char *alg, *module; @@ -3237,7 +3237,7 @@ static int prism2_ioctl_siwencodeext(struct net_device *dev, if (i > WEP_KEYS) return -EINVAL; if (i < 1 || i > WEP_KEYS) - i = local->tx_keyidx; + i = local->crypt_info.tx_keyidx; else i--; if (i < 0 || i >= WEP_KEYS) @@ -3247,7 +3247,7 @@ static int prism2_ioctl_siwencodeext(struct net_device *dev, if (addr[0] == 0xff && addr[1] == 0xff && addr[2] == 0xff && addr[3] == 0xff && addr[4] == 0xff && addr[5] == 0xff) { sta_ptr = NULL; - crypt = &local->crypt[i]; + crypt = &local->crypt_info.crypt[i]; } else { if (i != 0) return -EINVAL; @@ -3260,7 +3260,7 @@ static int prism2_ioctl_siwencodeext(struct net_device *dev, * is emulated by using default key idx 0. */ i = 0; - crypt = &local->crypt[i]; + crypt = &local->crypt_info.crypt[i]; } else return -EINVAL; } @@ -3276,15 +3276,15 @@ static int prism2_ioctl_siwencodeext(struct net_device *dev, switch (ext->alg) { case IW_ENCODE_ALG_WEP: alg = "WEP"; - module = "ieee80211_crypt_wep"; + module = "lib80211_crypt_wep"; break; case IW_ENCODE_ALG_TKIP: alg = "TKIP"; - module = "ieee80211_crypt_tkip"; + module = "lib80211_crypt_tkip"; break; case IW_ENCODE_ALG_CCMP: alg = "CCMP"; - module = "ieee80211_crypt_ccmp"; + module = "lib80211_crypt_ccmp"; break; default: printk(KERN_DEBUG "%s: unsupported algorithm %d\n", @@ -3293,10 +3293,10 @@ static int prism2_ioctl_siwencodeext(struct net_device *dev, goto done; } - ops = ieee80211_get_crypto_ops(alg); + ops = lib80211_get_crypto_ops(alg); if (ops == NULL) { request_module(module); - ops = ieee80211_get_crypto_ops(alg); + ops = lib80211_get_crypto_ops(alg); } if (ops == NULL) { printk(KERN_DEBUG "%s: unknown crypto alg '%s'\n", @@ -3315,11 +3315,11 @@ static int prism2_ioctl_siwencodeext(struct net_device *dev, } if (*crypt == NULL || (*crypt)->ops != ops) { - struct ieee80211_crypt_data *new_crypt; + struct lib80211_crypt_data *new_crypt; prism2_crypt_delayed_deinit(local, crypt); - new_crypt = kzalloc(sizeof(struct ieee80211_crypt_data), + new_crypt = kzalloc(sizeof(struct lib80211_crypt_data), GFP_KERNEL); if (new_crypt == NULL) { ret = -ENOMEM; @@ -3354,20 +3354,20 @@ static int prism2_ioctl_siwencodeext(struct net_device *dev, if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY) { if (!sta_ptr) - local->tx_keyidx = i; + local->crypt_info.tx_keyidx = i; } if (sta_ptr == NULL && ext->key_len > 0) { int first = 1, j; for (j = 0; j < WEP_KEYS; j++) { - if (j != i && local->crypt[j]) { + if (j != i && local->crypt_info.crypt[j]) { first = 0; break; } } if (first) - local->tx_keyidx = i; + local->crypt_info.tx_keyidx = i; } done: @@ -3399,7 +3399,7 @@ static int prism2_ioctl_giwencodeext(struct net_device *dev, { struct hostap_interface *iface = netdev_priv(dev); local_info_t *local = iface->local; - struct ieee80211_crypt_data **crypt; + struct lib80211_crypt_data **crypt; void *sta_ptr; int max_key_len, i; struct iw_encode_ext *ext = (struct iw_encode_ext *) extra; @@ -3411,7 +3411,7 @@ static int prism2_ioctl_giwencodeext(struct net_device *dev, i = erq->flags & IW_ENCODE_INDEX; if (i < 1 || i > WEP_KEYS) - i = local->tx_keyidx; + i = local->crypt_info.tx_keyidx; else i--; @@ -3419,7 +3419,7 @@ static int prism2_ioctl_giwencodeext(struct net_device *dev, if (addr[0] == 0xff && addr[1] == 0xff && addr[2] == 0xff && addr[3] == 0xff && addr[4] == 0xff && addr[5] == 0xff) { sta_ptr = NULL; - crypt = &local->crypt[i]; + crypt = &local->crypt_info.crypt[i]; } else { i = 0; sta_ptr = ap_crypt_get_ptrs(local->ap, addr, 0, &crypt); @@ -3468,8 +3468,8 @@ static int prism2_ioctl_set_encryption(local_info_t *local, int param_len) { int ret = 0; - struct ieee80211_crypto_ops *ops; - struct ieee80211_crypt_data **crypt; + struct lib80211_crypto_ops *ops; + struct lib80211_crypt_data **crypt; void *sta_ptr; param->u.crypt.err = 0; @@ -3486,7 +3486,7 @@ static int prism2_ioctl_set_encryption(local_info_t *local, if (param->u.crypt.idx >= WEP_KEYS) return -EINVAL; sta_ptr = NULL; - crypt = &local->crypt[param->u.crypt.idx]; + crypt = &local->crypt_info.crypt[param->u.crypt.idx]; } else { if (param->u.crypt.idx) return -EINVAL; @@ -3507,16 +3507,16 @@ static int prism2_ioctl_set_encryption(local_info_t *local, goto done; } - ops = ieee80211_get_crypto_ops(param->u.crypt.alg); + ops = lib80211_get_crypto_ops(param->u.crypt.alg); if (ops == NULL && strcmp(param->u.crypt.alg, "WEP") == 0) { - request_module("ieee80211_crypt_wep"); - ops = ieee80211_get_crypto_ops(param->u.crypt.alg); + request_module("lib80211_crypt_wep"); + ops = lib80211_get_crypto_ops(param->u.crypt.alg); } else if (ops == NULL && strcmp(param->u.crypt.alg, "TKIP") == 0) { - request_module("ieee80211_crypt_tkip"); - ops = ieee80211_get_crypto_ops(param->u.crypt.alg); + request_module("lib80211_crypt_tkip"); + ops = lib80211_get_crypto_ops(param->u.crypt.alg); } else if (ops == NULL && strcmp(param->u.crypt.alg, "CCMP") == 0) { - request_module("ieee80211_crypt_ccmp"); - ops = ieee80211_get_crypto_ops(param->u.crypt.alg); + request_module("lib80211_crypt_ccmp"); + ops = lib80211_get_crypto_ops(param->u.crypt.alg); } if (ops == NULL) { printk(KERN_DEBUG "%s: unknown crypto alg '%s'\n", @@ -3531,11 +3531,11 @@ static int prism2_ioctl_set_encryption(local_info_t *local, local->host_decrypt = local->host_encrypt = 1; if (*crypt == NULL || (*crypt)->ops != ops) { - struct ieee80211_crypt_data *new_crypt; + struct lib80211_crypt_data *new_crypt; prism2_crypt_delayed_deinit(local, crypt); - new_crypt = kzalloc(sizeof(struct ieee80211_crypt_data), + new_crypt = kzalloc(sizeof(struct lib80211_crypt_data), GFP_KERNEL); if (new_crypt == NULL) { ret = -ENOMEM; @@ -3568,7 +3568,7 @@ static int prism2_ioctl_set_encryption(local_info_t *local, if (param->u.crypt.flags & HOSTAP_CRYPT_FLAG_SET_TX_KEY) { if (!sta_ptr) - local->tx_keyidx = param->u.crypt.idx; + local->crypt_info.tx_keyidx = param->u.crypt.idx; else if (param->u.crypt.idx) { printk(KERN_DEBUG "%s: TX key idx setting failed\n", local->dev->name); @@ -3604,7 +3604,7 @@ static int prism2_ioctl_get_encryption(local_info_t *local, struct prism2_hostapd_param *param, int param_len) { - struct ieee80211_crypt_data **crypt; + struct lib80211_crypt_data **crypt; void *sta_ptr; int max_key_len; @@ -3620,8 +3620,8 @@ static int prism2_ioctl_get_encryption(local_info_t *local, param->sta_addr[4] == 0xff && param->sta_addr[5] == 0xff) { sta_ptr = NULL; if (param->u.crypt.idx >= WEP_KEYS) - param->u.crypt.idx = local->tx_keyidx; - crypt = &local->crypt[param->u.crypt.idx]; + param->u.crypt.idx = local->crypt_info.tx_keyidx; + crypt = &local->crypt_info.crypt[param->u.crypt.idx]; } else { param->u.crypt.idx = 0; sta_ptr = ap_crypt_get_ptrs(local->ap, param->sta_addr, 0, diff --git a/drivers/net/wireless/hostap/hostap_main.c b/drivers/net/wireless/hostap/hostap_main.c index 4c36eb2fafd1..02a312ca8607 100644 --- a/drivers/net/wireless/hostap/hostap_main.c +++ b/drivers/net/wireless/hostap/hostap_main.c @@ -27,7 +27,7 @@ #include #include #include -#include +#include #include #include "hostap_wlan.h" @@ -343,10 +343,11 @@ int hostap_set_encryption(local_info_t *local) char keybuf[WEP_KEY_LEN + 1]; enum { NONE, WEP, OTHER } encrypt_type; - idx = local->tx_keyidx; - if (local->crypt[idx] == NULL || local->crypt[idx]->ops == NULL) + idx = local->crypt_info.tx_keyidx; + if (local->crypt_info.crypt[idx] == NULL || + local->crypt_info.crypt[idx]->ops == NULL) encrypt_type = NONE; - else if (strcmp(local->crypt[idx]->ops->name, "WEP") == 0) + else if (strcmp(local->crypt_info.crypt[idx]->ops->name, "WEP") == 0) encrypt_type = WEP; else encrypt_type = OTHER; @@ -394,17 +395,17 @@ int hostap_set_encryption(local_info_t *local) /* 104-bit support seems to require that all the keys are set to the * same keylen */ keylen = 6; /* first 5 octets */ - len = local->crypt[idx]->ops->get_key(keybuf, sizeof(keybuf), - NULL, local->crypt[idx]->priv); + len = local->crypt_info.crypt[idx]->ops->get_key(keybuf, sizeof(keybuf), NULL, + local->crypt_info.crypt[idx]->priv); if (idx >= 0 && idx < WEP_KEYS && len > 5) keylen = WEP_KEY_LEN + 1; /* first 13 octets */ for (i = 0; i < WEP_KEYS; i++) { memset(keybuf, 0, sizeof(keybuf)); - if (local->crypt[i]) { - (void) local->crypt[i]->ops->get_key( + if (local->crypt_info.crypt[i]) { + (void) local->crypt_info.crypt[i]->ops->get_key( keybuf, sizeof(keybuf), - NULL, local->crypt[i]->priv); + NULL, local->crypt_info.crypt[i]->priv); } if (local->func->set_rid(local->dev, HFA384X_RID_CNFDEFAULTKEY0 + i, diff --git a/drivers/net/wireless/hostap/hostap_proc.c b/drivers/net/wireless/hostap/hostap_proc.c index ae7d3caf3dae..005ff25a405f 100644 --- a/drivers/net/wireless/hostap/hostap_proc.c +++ b/drivers/net/wireless/hostap/hostap_proc.c @@ -2,7 +2,7 @@ #include #include -#include +#include #include "hostap_wlan.h" #include "hostap.h" @@ -36,9 +36,10 @@ static int prism2_debug_proc_read(char *page, char **start, off_t off, p += sprintf(p, "dev_enabled=%d\n", local->dev_enabled); p += sprintf(p, "sw_tick_stuck=%d\n", local->sw_tick_stuck); for (i = 0; i < WEP_KEYS; i++) { - if (local->crypt[i] && local->crypt[i]->ops) { - p += sprintf(p, "crypt[%d]=%s\n", - i, local->crypt[i]->ops->name); + if (local->crypt_info.crypt[i] && + local->crypt_info.crypt[i]->ops) { + p += sprintf(p, "crypt[%d]=%s\n", i, + local->crypt_info.crypt[i]->ops->name); } } p += sprintf(p, "pri_only=%d\n", local->pri_only); @@ -206,12 +207,13 @@ static int prism2_crypt_proc_read(char *page, char **start, off_t off, return 0; } - p += sprintf(p, "tx_keyidx=%d\n", local->tx_keyidx); + p += sprintf(p, "tx_keyidx=%d\n", local->crypt_info.tx_keyidx); for (i = 0; i < WEP_KEYS; i++) { - if (local->crypt[i] && local->crypt[i]->ops && - local->crypt[i]->ops->print_stats) { - p = local->crypt[i]->ops->print_stats( - p, local->crypt[i]->priv); + if (local->crypt_info.crypt[i] && + local->crypt_info.crypt[i]->ops && + local->crypt_info.crypt[i]->ops->print_stats) { + p = local->crypt_info.crypt[i]->ops->print_stats( + p, local->crypt_info.crypt[i]->priv); } } diff --git a/drivers/net/wireless/hostap/hostap_wlan.h b/drivers/net/wireless/hostap/hostap_wlan.h index d2c7a56b8b59..4d8d51a353cd 100644 --- a/drivers/net/wireless/hostap/hostap_wlan.h +++ b/drivers/net/wireless/hostap/hostap_wlan.h @@ -6,6 +6,7 @@ #include #include #include +#include #include "hostap_config.h" #include "hostap_common.h" @@ -763,10 +764,7 @@ struct local_info { #define WEP_KEYS 4 #define WEP_KEY_LEN 13 - struct ieee80211_crypt_data *crypt[WEP_KEYS]; - int tx_keyidx; /* default TX key index (crypt[tx_keyidx]) */ - struct timer_list crypt_deinit_timer; - struct list_head crypt_deinit_list; + struct lib80211_crypt_info crypt_info; int open_wep; /* allow unencrypted frames */ int host_encrypt; diff --git a/drivers/net/wireless/ipw2100.c b/drivers/net/wireless/ipw2100.c index 062c9f280304..2d2044d3d1c9 100644 --- a/drivers/net/wireless/ipw2100.c +++ b/drivers/net/wireless/ipw2100.c @@ -4010,7 +4010,7 @@ static ssize_t show_internals(struct device *d, struct device_attribute *attr, else len += sprintf(buf + len, "not connected\n"); - DUMP_VAR(ieee->crypt[priv->ieee->tx_keyidx], "p"); + DUMP_VAR(ieee->crypt_info.crypt[priv->ieee->crypt_info.tx_keyidx], "p"); DUMP_VAR(status, "08lx"); DUMP_VAR(config, "08lx"); DUMP_VAR(capability, "08lx"); @@ -5514,7 +5514,7 @@ static int ipw2100_configure_security(struct ipw2100_priv *priv, int batch_mode) } } - ipw2100_set_key_index(priv, priv->ieee->tx_keyidx, 1); + ipw2100_set_key_index(priv, priv->ieee->crypt_info.tx_keyidx, 1); } /* Always enable privacy so the Host can filter WEP packets if @@ -7620,7 +7620,7 @@ static int ipw2100_wx_set_auth(struct net_device *dev, struct ipw2100_priv *priv = ieee80211_priv(dev); struct ieee80211_device *ieee = priv->ieee; struct iw_param *param = &wrqu->param; - struct ieee80211_crypt_data *crypt; + struct lib80211_crypt_data *crypt; unsigned long flags; int ret = 0; @@ -7635,7 +7635,7 @@ static int ipw2100_wx_set_auth(struct net_device *dev, break; case IW_AUTH_TKIP_COUNTERMEASURES: - crypt = priv->ieee->crypt[priv->ieee->tx_keyidx]; + crypt = priv->ieee->crypt_info.crypt[priv->ieee->crypt_info.tx_keyidx]; if (!crypt || !crypt->ops->set_flags || !crypt->ops->get_flags) break; @@ -7712,7 +7712,7 @@ static int ipw2100_wx_get_auth(struct net_device *dev, { struct ipw2100_priv *priv = ieee80211_priv(dev); struct ieee80211_device *ieee = priv->ieee; - struct ieee80211_crypt_data *crypt; + struct lib80211_crypt_data *crypt; struct iw_param *param = &wrqu->param; int ret = 0; @@ -7728,7 +7728,7 @@ static int ipw2100_wx_get_auth(struct net_device *dev, break; case IW_AUTH_TKIP_COUNTERMEASURES: - crypt = priv->ieee->crypt[priv->ieee->tx_keyidx]; + crypt = priv->ieee->crypt_info.crypt[priv->ieee->crypt_info.tx_keyidx]; if (!crypt || !crypt->ops->get_flags) { IPW_DEBUG_WARNING("Can't get TKIP countermeasures: " "crypt not set!\n"); diff --git a/drivers/net/wireless/ipw2200.c b/drivers/net/wireless/ipw2200.c index 6ca0f1c05048..d2a2b7586d08 100644 --- a/drivers/net/wireless/ipw2200.c +++ b/drivers/net/wireless/ipw2200.c @@ -6600,7 +6600,7 @@ static int ipw_wx_set_auth(struct net_device *dev, struct ipw_priv *priv = ieee80211_priv(dev); struct ieee80211_device *ieee = priv->ieee; struct iw_param *param = &wrqu->param; - struct ieee80211_crypt_data *crypt; + struct lib80211_crypt_data *crypt; unsigned long flags; int ret = 0; @@ -6622,7 +6622,7 @@ static int ipw_wx_set_auth(struct net_device *dev, break; case IW_AUTH_TKIP_COUNTERMEASURES: - crypt = priv->ieee->crypt[priv->ieee->tx_keyidx]; + crypt = priv->ieee->crypt_info.crypt[priv->ieee->crypt_info.tx_keyidx]; if (!crypt || !crypt->ops->set_flags || !crypt->ops->get_flags) break; @@ -6699,7 +6699,7 @@ static int ipw_wx_get_auth(struct net_device *dev, { struct ipw_priv *priv = ieee80211_priv(dev); struct ieee80211_device *ieee = priv->ieee; - struct ieee80211_crypt_data *crypt; + struct lib80211_crypt_data *crypt; struct iw_param *param = &wrqu->param; int ret = 0; @@ -6715,7 +6715,7 @@ static int ipw_wx_get_auth(struct net_device *dev, break; case IW_AUTH_TKIP_COUNTERMEASURES: - crypt = priv->ieee->crypt[priv->ieee->tx_keyidx]; + crypt = priv->ieee->crypt_info.crypt[priv->ieee->crypt_info.tx_keyidx]; if (!crypt || !crypt->ops->get_flags) break; @@ -10251,8 +10251,8 @@ static int ipw_tx_skb(struct ipw_priv *priv, struct ieee80211_txb *txb, case SEC_LEVEL_1: tfd->u.data.tfd.tfd_24.mchdr.frame_ctl |= cpu_to_le16(IEEE80211_FCTL_PROTECTED); - tfd->u.data.key_index = priv->ieee->tx_keyidx; - if (priv->ieee->sec.key_sizes[priv->ieee->tx_keyidx] <= + tfd->u.data.key_index = priv->ieee->crypt_info.tx_keyidx; + if (priv->ieee->sec.key_sizes[priv->ieee->crypt_info.tx_keyidx] <= 40) tfd->u.data.key_index |= DCT_WEP_KEY_64Bit; else diff --git a/include/net/ieee80211.h b/include/net/ieee80211.h index 738734a4653b..7ab3ed2bbccb 100644 --- a/include/net/ieee80211.h +++ b/include/net/ieee80211.h @@ -30,6 +30,8 @@ #include #include +#include + #define IEEE80211_VERSION "git-1.1.13" #define IEEE80211_DATA_LEN 2304 @@ -355,8 +357,6 @@ struct ieee80211_stats { struct ieee80211_device; -#include "ieee80211_crypt.h" - #define SEC_KEY_1 (1<<0) #define SEC_KEY_2 (1<<1) #define SEC_KEY_3 (1<<2) @@ -937,11 +937,7 @@ struct ieee80211_device { size_t wpa_ie_len; u8 *wpa_ie; - struct list_head crypt_deinit_list; - struct ieee80211_crypt_data *crypt[WEP_KEYS]; - int tx_keyidx; /* default TX key index (crypt[tx_keyidx]) */ - struct timer_list crypt_deinit_timer; - int crypt_quiesced; + struct lib80211_crypt_info crypt_info; int bcrx_sta_key; /* use individual keys to override default keys even * with RX of broad/multicast frames */ diff --git a/include/net/ieee80211_crypt.h b/include/net/ieee80211_crypt.h deleted file mode 100644 index b3d65e0bedd3..000000000000 --- a/include/net/ieee80211_crypt.h +++ /dev/null @@ -1,108 +0,0 @@ -/* - * Original code based on Host AP (software wireless LAN access point) driver - * for Intersil Prism2/2.5/3. - * - * Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen - * - * Copyright (c) 2002-2003, Jouni Malinen - * - * Adaption to a generic IEEE 802.11 stack by James Ketrenos - * - * - * Copyright (c) 2004, Intel Corporation - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. See README and COPYING for - * more details. - */ - -/* - * This file defines the interface to the ieee80211 crypto module. - */ -#ifndef IEEE80211_CRYPT_H -#define IEEE80211_CRYPT_H - -#include -#include -#include -#include - -enum { - IEEE80211_CRYPTO_TKIP_COUNTERMEASURES = (1 << 0), -}; - -struct sk_buff; -struct module; - -struct ieee80211_crypto_ops { - const char *name; - struct list_head list; - - /* init new crypto context (e.g., allocate private data space, - * select IV, etc.); returns NULL on failure or pointer to allocated - * private data on success */ - void *(*init) (int keyidx); - - /* deinitialize crypto context and free allocated private data */ - void (*deinit) (void *priv); - - int (*build_iv) (struct sk_buff * skb, int hdr_len, - u8 *key, int keylen, void *priv); - - /* encrypt/decrypt return < 0 on error or >= 0 on success. The return - * value from decrypt_mpdu is passed as the keyidx value for - * decrypt_msdu. skb must have enough head and tail room for the - * encryption; if not, error will be returned; these functions are - * called for all MPDUs (i.e., fragments). - */ - int (*encrypt_mpdu) (struct sk_buff * skb, int hdr_len, void *priv); - int (*decrypt_mpdu) (struct sk_buff * skb, int hdr_len, void *priv); - - /* These functions are called for full MSDUs, i.e. full frames. - * These can be NULL if full MSDU operations are not needed. */ - int (*encrypt_msdu) (struct sk_buff * skb, int hdr_len, void *priv); - int (*decrypt_msdu) (struct sk_buff * skb, int keyidx, int hdr_len, - void *priv); - - int (*set_key) (void *key, int len, u8 * seq, void *priv); - int (*get_key) (void *key, int len, u8 * seq, void *priv); - - /* procfs handler for printing out key information and possible - * statistics */ - char *(*print_stats) (char *p, void *priv); - - /* Crypto specific flag get/set for configuration settings */ - unsigned long (*get_flags) (void *priv); - unsigned long (*set_flags) (unsigned long flags, void *priv); - - /* maximum number of bytes added by encryption; encrypt buf is - * allocated with extra_prefix_len bytes, copy of in_buf, and - * extra_postfix_len; encrypt need not use all this space, but - * the result must start at the beginning of the buffer and correct - * length must be returned */ - int extra_mpdu_prefix_len, extra_mpdu_postfix_len; - int extra_msdu_prefix_len, extra_msdu_postfix_len; - - struct module *owner; -}; - -struct ieee80211_crypt_data { - struct list_head list; /* delayed deletion list */ - struct ieee80211_crypto_ops *ops; - void *priv; - atomic_t refcnt; -}; - -struct ieee80211_device; - -int ieee80211_register_crypto_ops(struct ieee80211_crypto_ops *ops); -int ieee80211_unregister_crypto_ops(struct ieee80211_crypto_ops *ops); -struct ieee80211_crypto_ops *ieee80211_get_crypto_ops(const char *name); -void ieee80211_crypt_deinit_entries(struct ieee80211_device *, int); -void ieee80211_crypt_deinit_handler(unsigned long); -void ieee80211_crypt_delayed_deinit(struct ieee80211_device *ieee, - struct ieee80211_crypt_data **crypt); -void ieee80211_crypt_quiescing(struct ieee80211_device *ieee); - -#endif diff --git a/include/net/lib80211.h b/include/net/lib80211.h index e1558a187ac0..dd1079f98da4 100644 --- a/include/net/lib80211.h +++ b/include/net/lib80211.h @@ -3,11 +3,32 @@ * * Copyright (c) 2008, John W. Linville * + * Some bits copied from old ieee80211 component, w/ original copyright + * notices below: + * + * Original code based on Host AP (software wireless LAN access point) driver + * for Intersil Prism2/2.5/3. + * + * Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen + * + * Copyright (c) 2002-2003, Jouni Malinen + * + * Adaption to a generic IEEE 802.11 stack by James Ketrenos + * + * + * Copyright (c) 2004, Intel Corporation + * */ #ifndef LIB80211_H #define LIB80211_H +#include +#include +#include +#include +#include +#include #include /* print_ssid() is intended to be used in debug (and possibly error) @@ -15,4 +36,91 @@ const char *print_ssid(char *buf, const char *ssid, u8 ssid_len); #define DECLARE_SSID_BUF(var) char var[IEEE80211_MAX_SSID_LEN * 4 + 1] __maybe_unused +#define NUM_WEP_KEYS 4 + +enum { + IEEE80211_CRYPTO_TKIP_COUNTERMEASURES = (1 << 0), +}; + +struct lib80211_crypto_ops { + const char *name; + struct list_head list; + + /* init new crypto context (e.g., allocate private data space, + * select IV, etc.); returns NULL on failure or pointer to allocated + * private data on success */ + void *(*init) (int keyidx); + + /* deinitialize crypto context and free allocated private data */ + void (*deinit) (void *priv); + + int (*build_iv) (struct sk_buff * skb, int hdr_len, + u8 *key, int keylen, void *priv); + + /* encrypt/decrypt return < 0 on error or >= 0 on success. The return + * value from decrypt_mpdu is passed as the keyidx value for + * decrypt_msdu. skb must have enough head and tail room for the + * encryption; if not, error will be returned; these functions are + * called for all MPDUs (i.e., fragments). + */ + int (*encrypt_mpdu) (struct sk_buff * skb, int hdr_len, void *priv); + int (*decrypt_mpdu) (struct sk_buff * skb, int hdr_len, void *priv); + + /* These functions are called for full MSDUs, i.e. full frames. + * These can be NULL if full MSDU operations are not needed. */ + int (*encrypt_msdu) (struct sk_buff * skb, int hdr_len, void *priv); + int (*decrypt_msdu) (struct sk_buff * skb, int keyidx, int hdr_len, + void *priv); + + int (*set_key) (void *key, int len, u8 * seq, void *priv); + int (*get_key) (void *key, int len, u8 * seq, void *priv); + + /* procfs handler for printing out key information and possible + * statistics */ + char *(*print_stats) (char *p, void *priv); + + /* Crypto specific flag get/set for configuration settings */ + unsigned long (*get_flags) (void *priv); + unsigned long (*set_flags) (unsigned long flags, void *priv); + + /* maximum number of bytes added by encryption; encrypt buf is + * allocated with extra_prefix_len bytes, copy of in_buf, and + * extra_postfix_len; encrypt need not use all this space, but + * the result must start at the beginning of the buffer and correct + * length must be returned */ + int extra_mpdu_prefix_len, extra_mpdu_postfix_len; + int extra_msdu_prefix_len, extra_msdu_postfix_len; + + struct module *owner; +}; + +struct lib80211_crypt_data { + struct list_head list; /* delayed deletion list */ + struct lib80211_crypto_ops *ops; + void *priv; + atomic_t refcnt; +}; + +struct lib80211_crypt_info { + char *name; + /* Most clients will already have a lock, + so just point to that. */ + spinlock_t *lock; + + struct lib80211_crypt_data *crypt[NUM_WEP_KEYS]; + int tx_keyidx; /* default TX key index (crypt[tx_keyidx]) */ + struct list_head crypt_deinit_list; + struct timer_list crypt_deinit_timer; + int crypt_quiesced; +}; + +int lib80211_register_crypto_ops(struct lib80211_crypto_ops *ops); +int lib80211_unregister_crypto_ops(struct lib80211_crypto_ops *ops); +struct lib80211_crypto_ops *lib80211_get_crypto_ops(const char *name); +void lib80211_crypt_deinit_entries(struct lib80211_crypt_info *, int); +void lib80211_crypt_deinit_handler(unsigned long); +void lib80211_crypt_delayed_deinit(struct lib80211_crypt_info *info, + struct lib80211_crypt_data **crypt); +void lib80211_crypt_quiescing(struct lib80211_crypt_info *info); + #endif /* LIB80211_H */ diff --git a/net/ieee80211/Kconfig b/net/ieee80211/Kconfig index d2282bb2e4f1..46f24f4c9dc7 100644 --- a/net/ieee80211/Kconfig +++ b/net/ieee80211/Kconfig @@ -8,10 +8,10 @@ config IEEE80211 select CRYPTO_MICHAEL_MIC select CRYPTO_ECB select CRC32 - select IEEE80211_CRYPT_WEP - select IEEE80211_CRYPT_TKIP - select IEEE80211_CRYPT_CCMP select LIB80211 + select LIB80211_CRYPT_WEP + select LIB80211_CRYPT_TKIP + select LIB80211_CRYPT_CCMP ---help--- This option enables the hardware independent IEEE 802.11 networking stack. This component is deprecated in favor of the @@ -39,12 +39,3 @@ config IEEE80211_DEBUG If you are not trying to debug or develop the ieee80211 subsystem, you most likely want to say N here. - -config IEEE80211_CRYPT_WEP - tristate - -config IEEE80211_CRYPT_CCMP - tristate - -config IEEE80211_CRYPT_TKIP - tristate diff --git a/net/ieee80211/Makefile b/net/ieee80211/Makefile index f988417121da..158963ff18d2 100644 --- a/net/ieee80211/Makefile +++ b/net/ieee80211/Makefile @@ -1,8 +1,4 @@ obj-$(CONFIG_IEEE80211) += ieee80211.o -obj-$(CONFIG_IEEE80211) += ieee80211_crypt.o -obj-$(CONFIG_IEEE80211_CRYPT_WEP) += ieee80211_crypt_wep.o -obj-$(CONFIG_IEEE80211_CRYPT_CCMP) += ieee80211_crypt_ccmp.o -obj-$(CONFIG_IEEE80211_CRYPT_TKIP) += ieee80211_crypt_tkip.o ieee80211-objs := \ ieee80211_module.o \ ieee80211_tx.o \ diff --git a/net/ieee80211/ieee80211_crypt.c b/net/ieee80211/ieee80211_crypt.c deleted file mode 100644 index df5592c9339f..000000000000 --- a/net/ieee80211/ieee80211_crypt.c +++ /dev/null @@ -1,206 +0,0 @@ -/* - * Host AP crypto routines - * - * Copyright (c) 2002-2003, Jouni Malinen - * Portions Copyright (C) 2004, Intel Corporation - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. See README and COPYING for - * more details. - * - */ - -#include -#include -#include -#include -#include -#include - -MODULE_AUTHOR("Jouni Malinen"); -MODULE_DESCRIPTION("HostAP crypto"); -MODULE_LICENSE("GPL"); - -struct ieee80211_crypto_alg { - struct list_head list; - struct ieee80211_crypto_ops *ops; -}; - -static LIST_HEAD(ieee80211_crypto_algs); -static DEFINE_SPINLOCK(ieee80211_crypto_lock); - -void ieee80211_crypt_deinit_entries(struct ieee80211_device *ieee, int force) -{ - struct ieee80211_crypt_data *entry, *next; - unsigned long flags; - - spin_lock_irqsave(&ieee->lock, flags); - list_for_each_entry_safe(entry, next, &ieee->crypt_deinit_list, list) { - if (atomic_read(&entry->refcnt) != 0 && !force) - continue; - - list_del(&entry->list); - - if (entry->ops) { - entry->ops->deinit(entry->priv); - module_put(entry->ops->owner); - } - kfree(entry); - } - spin_unlock_irqrestore(&ieee->lock, flags); -} - -/* After this, crypt_deinit_list won't accept new members */ -void ieee80211_crypt_quiescing(struct ieee80211_device *ieee) -{ - unsigned long flags; - - spin_lock_irqsave(&ieee->lock, flags); - ieee->crypt_quiesced = 1; - spin_unlock_irqrestore(&ieee->lock, flags); -} - -void ieee80211_crypt_deinit_handler(unsigned long data) -{ - struct ieee80211_device *ieee = (struct ieee80211_device *)data; - unsigned long flags; - - ieee80211_crypt_deinit_entries(ieee, 0); - - spin_lock_irqsave(&ieee->lock, flags); - if (!list_empty(&ieee->crypt_deinit_list) && !ieee->crypt_quiesced) { - printk(KERN_DEBUG "%s: entries remaining in delayed crypt " - "deletion list\n", ieee->dev->name); - ieee->crypt_deinit_timer.expires = jiffies + HZ; - add_timer(&ieee->crypt_deinit_timer); - } - spin_unlock_irqrestore(&ieee->lock, flags); -} - -void ieee80211_crypt_delayed_deinit(struct ieee80211_device *ieee, - struct ieee80211_crypt_data **crypt) -{ - struct ieee80211_crypt_data *tmp; - unsigned long flags; - - if (*crypt == NULL) - return; - - tmp = *crypt; - *crypt = NULL; - - /* must not run ops->deinit() while there may be pending encrypt or - * decrypt operations. Use a list of delayed deinits to avoid needing - * locking. */ - - spin_lock_irqsave(&ieee->lock, flags); - if (!ieee->crypt_quiesced) { - list_add(&tmp->list, &ieee->crypt_deinit_list); - if (!timer_pending(&ieee->crypt_deinit_timer)) { - ieee->crypt_deinit_timer.expires = jiffies + HZ; - add_timer(&ieee->crypt_deinit_timer); - } - } - spin_unlock_irqrestore(&ieee->lock, flags); -} - -int ieee80211_register_crypto_ops(struct ieee80211_crypto_ops *ops) -{ - unsigned long flags; - struct ieee80211_crypto_alg *alg; - - alg = kzalloc(sizeof(*alg), GFP_KERNEL); - if (alg == NULL) - return -ENOMEM; - - alg->ops = ops; - - spin_lock_irqsave(&ieee80211_crypto_lock, flags); - list_add(&alg->list, &ieee80211_crypto_algs); - spin_unlock_irqrestore(&ieee80211_crypto_lock, flags); - - printk(KERN_DEBUG "ieee80211_crypt: registered algorithm '%s'\n", - ops->name); - - return 0; -} - -int ieee80211_unregister_crypto_ops(struct ieee80211_crypto_ops *ops) -{ - struct ieee80211_crypto_alg *alg; - unsigned long flags; - - spin_lock_irqsave(&ieee80211_crypto_lock, flags); - list_for_each_entry(alg, &ieee80211_crypto_algs, list) { - if (alg->ops == ops) - goto found; - } - spin_unlock_irqrestore(&ieee80211_crypto_lock, flags); - return -EINVAL; - - found: - printk(KERN_DEBUG "ieee80211_crypt: unregistered algorithm " - "'%s'\n", ops->name); - list_del(&alg->list); - spin_unlock_irqrestore(&ieee80211_crypto_lock, flags); - kfree(alg); - return 0; -} - -struct ieee80211_crypto_ops *ieee80211_get_crypto_ops(const char *name) -{ - struct ieee80211_crypto_alg *alg; - unsigned long flags; - - spin_lock_irqsave(&ieee80211_crypto_lock, flags); - list_for_each_entry(alg, &ieee80211_crypto_algs, list) { - if (strcmp(alg->ops->name, name) == 0) - goto found; - } - spin_unlock_irqrestore(&ieee80211_crypto_lock, flags); - return NULL; - - found: - spin_unlock_irqrestore(&ieee80211_crypto_lock, flags); - return alg->ops; -} - -static void *ieee80211_crypt_null_init(int keyidx) -{ - return (void *)1; -} - -static void ieee80211_crypt_null_deinit(void *priv) -{ -} - -static struct ieee80211_crypto_ops ieee80211_crypt_null = { - .name = "NULL", - .init = ieee80211_crypt_null_init, - .deinit = ieee80211_crypt_null_deinit, - .owner = THIS_MODULE, -}; - -static int __init ieee80211_crypto_init(void) -{ - return ieee80211_register_crypto_ops(&ieee80211_crypt_null); -} - -static void __exit ieee80211_crypto_deinit(void) -{ - ieee80211_unregister_crypto_ops(&ieee80211_crypt_null); - BUG_ON(!list_empty(&ieee80211_crypto_algs)); -} - -EXPORT_SYMBOL(ieee80211_crypt_deinit_entries); -EXPORT_SYMBOL(ieee80211_crypt_deinit_handler); -EXPORT_SYMBOL(ieee80211_crypt_delayed_deinit); -EXPORT_SYMBOL(ieee80211_crypt_quiescing); - -EXPORT_SYMBOL(ieee80211_register_crypto_ops); -EXPORT_SYMBOL(ieee80211_unregister_crypto_ops); -EXPORT_SYMBOL(ieee80211_get_crypto_ops); - -module_init(ieee80211_crypto_init); -module_exit(ieee80211_crypto_deinit); diff --git a/net/ieee80211/ieee80211_crypt_ccmp.c b/net/ieee80211/ieee80211_crypt_ccmp.c deleted file mode 100644 index bea04af0b482..000000000000 --- a/net/ieee80211/ieee80211_crypt_ccmp.c +++ /dev/null @@ -1,492 +0,0 @@ -/* - * Host AP crypt: host-based CCMP encryption implementation for Host AP driver - * - * Copyright (c) 2003-2004, Jouni Malinen - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. See README and COPYING for - * more details. - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include - -#include - -MODULE_AUTHOR("Jouni Malinen"); -MODULE_DESCRIPTION("Host AP crypt: CCMP"); -MODULE_LICENSE("GPL"); - -#define AES_BLOCK_LEN 16 -#define CCMP_HDR_LEN 8 -#define CCMP_MIC_LEN 8 -#define CCMP_TK_LEN 16 -#define CCMP_PN_LEN 6 - -struct ieee80211_ccmp_data { - u8 key[CCMP_TK_LEN]; - int key_set; - - u8 tx_pn[CCMP_PN_LEN]; - u8 rx_pn[CCMP_PN_LEN]; - - u32 dot11RSNAStatsCCMPFormatErrors; - u32 dot11RSNAStatsCCMPReplays; - u32 dot11RSNAStatsCCMPDecryptErrors; - - int key_idx; - - struct crypto_cipher *tfm; - - /* scratch buffers for virt_to_page() (crypto API) */ - u8 tx_b0[AES_BLOCK_LEN], tx_b[AES_BLOCK_LEN], - tx_e[AES_BLOCK_LEN], tx_s0[AES_BLOCK_LEN]; - u8 rx_b0[AES_BLOCK_LEN], rx_b[AES_BLOCK_LEN], rx_a[AES_BLOCK_LEN]; -}; - -static inline void ieee80211_ccmp_aes_encrypt(struct crypto_cipher *tfm, - const u8 pt[16], u8 ct[16]) -{ - crypto_cipher_encrypt_one(tfm, ct, pt); -} - -static void *ieee80211_ccmp_init(int key_idx) -{ - struct ieee80211_ccmp_data *priv; - - priv = kzalloc(sizeof(*priv), GFP_ATOMIC); - if (priv == NULL) - goto fail; - priv->key_idx = key_idx; - - priv->tfm = crypto_alloc_cipher("aes", 0, CRYPTO_ALG_ASYNC); - if (IS_ERR(priv->tfm)) { - printk(KERN_DEBUG "ieee80211_crypt_ccmp: could not allocate " - "crypto API aes\n"); - priv->tfm = NULL; - goto fail; - } - - return priv; - - fail: - if (priv) { - if (priv->tfm) - crypto_free_cipher(priv->tfm); - kfree(priv); - } - - return NULL; -} - -static void ieee80211_ccmp_deinit(void *priv) -{ - struct ieee80211_ccmp_data *_priv = priv; - if (_priv && _priv->tfm) - crypto_free_cipher(_priv->tfm); - kfree(priv); -} - -static inline void xor_block(u8 * b, u8 * a, size_t len) -{ - int i; - for (i = 0; i < len; i++) - b[i] ^= a[i]; -} - -static void ccmp_init_blocks(struct crypto_cipher *tfm, - struct ieee80211_hdr_4addr *hdr, - u8 * pn, size_t dlen, u8 * b0, u8 * auth, u8 * s0) -{ - u8 *pos, qc = 0; - size_t aad_len; - u16 fc; - int a4_included, qc_included; - u8 aad[2 * AES_BLOCK_LEN]; - - fc = le16_to_cpu(hdr->frame_ctl); - a4_included = ((fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) == - (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)); - qc_included = ((WLAN_FC_GET_TYPE(fc) == IEEE80211_FTYPE_DATA) && - (WLAN_FC_GET_STYPE(fc) & IEEE80211_STYPE_QOS_DATA)); - aad_len = 22; - if (a4_included) - aad_len += 6; - if (qc_included) { - pos = (u8 *) & hdr->addr4; - if (a4_included) - pos += 6; - qc = *pos & 0x0f; - aad_len += 2; - } - - /* CCM Initial Block: - * Flag (Include authentication header, M=3 (8-octet MIC), - * L=1 (2-octet Dlen)) - * Nonce: 0x00 | A2 | PN - * Dlen */ - b0[0] = 0x59; - b0[1] = qc; - memcpy(b0 + 2, hdr->addr2, ETH_ALEN); - memcpy(b0 + 8, pn, CCMP_PN_LEN); - b0[14] = (dlen >> 8) & 0xff; - b0[15] = dlen & 0xff; - - /* AAD: - * FC with bits 4..6 and 11..13 masked to zero; 14 is always one - * A1 | A2 | A3 - * SC with bits 4..15 (seq#) masked to zero - * A4 (if present) - * QC (if present) - */ - pos = (u8 *) hdr; - aad[0] = 0; /* aad_len >> 8 */ - aad[1] = aad_len & 0xff; - aad[2] = pos[0] & 0x8f; - aad[3] = pos[1] & 0xc7; - memcpy(aad + 4, hdr->addr1, 3 * ETH_ALEN); - pos = (u8 *) & hdr->seq_ctl; - aad[22] = pos[0] & 0x0f; - aad[23] = 0; /* all bits masked */ - memset(aad + 24, 0, 8); - if (a4_included) - memcpy(aad + 24, hdr->addr4, ETH_ALEN); - if (qc_included) { - aad[a4_included ? 30 : 24] = qc; - /* rest of QC masked */ - } - - /* Start with the first block and AAD */ - ieee80211_ccmp_aes_encrypt(tfm, b0, auth); - xor_block(auth, aad, AES_BLOCK_LEN); - ieee80211_ccmp_aes_encrypt(tfm, auth, auth); - xor_block(auth, &aad[AES_BLOCK_LEN], AES_BLOCK_LEN); - ieee80211_ccmp_aes_encrypt(tfm, auth, auth); - b0[0] &= 0x07; - b0[14] = b0[15] = 0; - ieee80211_ccmp_aes_encrypt(tfm, b0, s0); -} - -static int ieee80211_ccmp_hdr(struct sk_buff *skb, int hdr_len, - u8 *aeskey, int keylen, void *priv) -{ - struct ieee80211_ccmp_data *key = priv; - int i; - u8 *pos; - - if (skb_headroom(skb) < CCMP_HDR_LEN || skb->len < hdr_len) - return -1; - - if (aeskey != NULL && keylen >= CCMP_TK_LEN) - memcpy(aeskey, key->key, CCMP_TK_LEN); - - pos = skb_push(skb, CCMP_HDR_LEN); - memmove(pos, pos + CCMP_HDR_LEN, hdr_len); - pos += hdr_len; - - i = CCMP_PN_LEN - 1; - while (i >= 0) { - key->tx_pn[i]++; - if (key->tx_pn[i] != 0) - break; - i--; - } - - *pos++ = key->tx_pn[5]; - *pos++ = key->tx_pn[4]; - *pos++ = 0; - *pos++ = (key->key_idx << 6) | (1 << 5) /* Ext IV included */ ; - *pos++ = key->tx_pn[3]; - *pos++ = key->tx_pn[2]; - *pos++ = key->tx_pn[1]; - *pos++ = key->tx_pn[0]; - - return CCMP_HDR_LEN; -} - -static int ieee80211_ccmp_encrypt(struct sk_buff *skb, int hdr_len, void *priv) -{ - struct ieee80211_ccmp_data *key = priv; - int data_len, i, blocks, last, len; - u8 *pos, *mic; - struct ieee80211_hdr_4addr *hdr; - u8 *b0 = key->tx_b0; - u8 *b = key->tx_b; - u8 *e = key->tx_e; - u8 *s0 = key->tx_s0; - - if (skb_tailroom(skb) < CCMP_MIC_LEN || skb->len < hdr_len) - return -1; - - data_len = skb->len - hdr_len; - len = ieee80211_ccmp_hdr(skb, hdr_len, NULL, 0, priv); - if (len < 0) - return -1; - - pos = skb->data + hdr_len + CCMP_HDR_LEN; - mic = skb_put(skb, CCMP_MIC_LEN); - hdr = (struct ieee80211_hdr_4addr *)skb->data; - ccmp_init_blocks(key->tfm, hdr, key->tx_pn, data_len, b0, b, s0); - - blocks = DIV_ROUND_UP(data_len, AES_BLOCK_LEN); - last = data_len % AES_BLOCK_LEN; - - for (i = 1; i <= blocks; i++) { - len = (i == blocks && last) ? last : AES_BLOCK_LEN; - /* Authentication */ - xor_block(b, pos, len); - ieee80211_ccmp_aes_encrypt(key->tfm, b, b); - /* Encryption, with counter */ - b0[14] = (i >> 8) & 0xff; - b0[15] = i & 0xff; - ieee80211_ccmp_aes_encrypt(key->tfm, b0, e); - xor_block(pos, e, len); - pos += len; - } - - for (i = 0; i < CCMP_MIC_LEN; i++) - mic[i] = b[i] ^ s0[i]; - - return 0; -} - -/* - * deal with seq counter wrapping correctly. - * refer to timer_after() for jiffies wrapping handling - */ -static inline int ccmp_replay_check(u8 *pn_n, u8 *pn_o) -{ - u32 iv32_n, iv16_n; - u32 iv32_o, iv16_o; - - iv32_n = (pn_n[0] << 24) | (pn_n[1] << 16) | (pn_n[2] << 8) | pn_n[3]; - iv16_n = (pn_n[4] << 8) | pn_n[5]; - - iv32_o = (pn_o[0] << 24) | (pn_o[1] << 16) | (pn_o[2] << 8) | pn_o[3]; - iv16_o = (pn_o[4] << 8) | pn_o[5]; - - if ((s32)iv32_n - (s32)iv32_o < 0 || - (iv32_n == iv32_o && iv16_n <= iv16_o)) - return 1; - return 0; -} - -static int ieee80211_ccmp_decrypt(struct sk_buff *skb, int hdr_len, void *priv) -{ - struct ieee80211_ccmp_data *key = priv; - u8 keyidx, *pos; - struct ieee80211_hdr_4addr *hdr; - u8 *b0 = key->rx_b0; - u8 *b = key->rx_b; - u8 *a = key->rx_a; - u8 pn[6]; - int i, blocks, last, len; - size_t data_len = skb->len - hdr_len - CCMP_HDR_LEN - CCMP_MIC_LEN; - u8 *mic = skb->data + skb->len - CCMP_MIC_LEN; - - if (skb->len < hdr_len + CCMP_HDR_LEN + CCMP_MIC_LEN) { - key->dot11RSNAStatsCCMPFormatErrors++; - return -1; - } - - hdr = (struct ieee80211_hdr_4addr *)skb->data; - pos = skb->data + hdr_len; - keyidx = pos[3]; - if (!(keyidx & (1 << 5))) { - if (net_ratelimit()) { - printk(KERN_DEBUG "CCMP: received packet without ExtIV" - " flag from %pM\n", hdr->addr2); - } - key->dot11RSNAStatsCCMPFormatErrors++; - return -2; - } - keyidx >>= 6; - if (key->key_idx != keyidx) { - printk(KERN_DEBUG "CCMP: RX tkey->key_idx=%d frame " - "keyidx=%d priv=%p\n", key->key_idx, keyidx, priv); - return -6; - } - if (!key->key_set) { - if (net_ratelimit()) { - printk(KERN_DEBUG "CCMP: received packet from %pM" - " with keyid=%d that does not have a configured" - " key\n", hdr->addr2, keyidx); - } - return -3; - } - - pn[0] = pos[7]; - pn[1] = pos[6]; - pn[2] = pos[5]; - pn[3] = pos[4]; - pn[4] = pos[1]; - pn[5] = pos[0]; - pos += 8; - - if (ccmp_replay_check(pn, key->rx_pn)) { - if (ieee80211_ratelimit_debug(IEEE80211_DL_DROP)) { - IEEE80211_DEBUG_DROP("CCMP: replay detected: STA=%pM " - "previous PN %02x%02x%02x%02x%02x%02x " - "received PN %02x%02x%02x%02x%02x%02x\n", - hdr->addr2, - key->rx_pn[0], key->rx_pn[1], key->rx_pn[2], - key->rx_pn[3], key->rx_pn[4], key->rx_pn[5], - pn[0], pn[1], pn[2], pn[3], pn[4], pn[5]); - } - key->dot11RSNAStatsCCMPReplays++; - return -4; - } - - ccmp_init_blocks(key->tfm, hdr, pn, data_len, b0, a, b); - xor_block(mic, b, CCMP_MIC_LEN); - - blocks = DIV_ROUND_UP(data_len, AES_BLOCK_LEN); - last = data_len % AES_BLOCK_LEN; - - for (i = 1; i <= blocks; i++) { - len = (i == blocks && last) ? last : AES_BLOCK_LEN; - /* Decrypt, with counter */ - b0[14] = (i >> 8) & 0xff; - b0[15] = i & 0xff; - ieee80211_ccmp_aes_encrypt(key->tfm, b0, b); - xor_block(pos, b, len); - /* Authentication */ - xor_block(a, pos, len); - ieee80211_ccmp_aes_encrypt(key->tfm, a, a); - pos += len; - } - - if (memcmp(mic, a, CCMP_MIC_LEN) != 0) { - if (net_ratelimit()) { - printk(KERN_DEBUG "CCMP: decrypt failed: STA=" - "%pM\n", hdr->addr2); - } - key->dot11RSNAStatsCCMPDecryptErrors++; - return -5; - } - - memcpy(key->rx_pn, pn, CCMP_PN_LEN); - - /* Remove hdr and MIC */ - memmove(skb->data + CCMP_HDR_LEN, skb->data, hdr_len); - skb_pull(skb, CCMP_HDR_LEN); - skb_trim(skb, skb->len - CCMP_MIC_LEN); - - return keyidx; -} - -static int ieee80211_ccmp_set_key(void *key, int len, u8 * seq, void *priv) -{ - struct ieee80211_ccmp_data *data = priv; - int keyidx; - struct crypto_cipher *tfm = data->tfm; - - keyidx = data->key_idx; - memset(data, 0, sizeof(*data)); - data->key_idx = keyidx; - data->tfm = tfm; - if (len == CCMP_TK_LEN) { - memcpy(data->key, key, CCMP_TK_LEN); - data->key_set = 1; - if (seq) { - data->rx_pn[0] = seq[5]; - data->rx_pn[1] = seq[4]; - data->rx_pn[2] = seq[3]; - data->rx_pn[3] = seq[2]; - data->rx_pn[4] = seq[1]; - data->rx_pn[5] = seq[0]; - } - crypto_cipher_setkey(data->tfm, data->key, CCMP_TK_LEN); - } else if (len == 0) - data->key_set = 0; - else - return -1; - - return 0; -} - -static int ieee80211_ccmp_get_key(void *key, int len, u8 * seq, void *priv) -{ - struct ieee80211_ccmp_data *data = priv; - - if (len < CCMP_TK_LEN) - return -1; - - if (!data->key_set) - return 0; - memcpy(key, data->key, CCMP_TK_LEN); - - if (seq) { - seq[0] = data->tx_pn[5]; - seq[1] = data->tx_pn[4]; - seq[2] = data->tx_pn[3]; - seq[3] = data->tx_pn[2]; - seq[4] = data->tx_pn[1]; - seq[5] = data->tx_pn[0]; - } - - return CCMP_TK_LEN; -} - -static char *ieee80211_ccmp_print_stats(char *p, void *priv) -{ - struct ieee80211_ccmp_data *ccmp = priv; - - p += sprintf(p, "key[%d] alg=CCMP key_set=%d " - "tx_pn=%02x%02x%02x%02x%02x%02x " - "rx_pn=%02x%02x%02x%02x%02x%02x " - "format_errors=%d replays=%d decrypt_errors=%d\n", - ccmp->key_idx, ccmp->key_set, - ccmp->tx_pn[0], ccmp->tx_pn[1], ccmp->tx_pn[2], - ccmp->tx_pn[3], ccmp->tx_pn[4], ccmp->tx_pn[5], - ccmp->rx_pn[0], ccmp->rx_pn[1], ccmp->rx_pn[2], - ccmp->rx_pn[3], ccmp->rx_pn[4], ccmp->rx_pn[5], - ccmp->dot11RSNAStatsCCMPFormatErrors, - ccmp->dot11RSNAStatsCCMPReplays, - ccmp->dot11RSNAStatsCCMPDecryptErrors); - - return p; -} - -static struct ieee80211_crypto_ops ieee80211_crypt_ccmp = { - .name = "CCMP", - .init = ieee80211_ccmp_init, - .deinit = ieee80211_ccmp_deinit, - .build_iv = ieee80211_ccmp_hdr, - .encrypt_mpdu = ieee80211_ccmp_encrypt, - .decrypt_mpdu = ieee80211_ccmp_decrypt, - .encrypt_msdu = NULL, - .decrypt_msdu = NULL, - .set_key = ieee80211_ccmp_set_key, - .get_key = ieee80211_ccmp_get_key, - .print_stats = ieee80211_ccmp_print_stats, - .extra_mpdu_prefix_len = CCMP_HDR_LEN, - .extra_mpdu_postfix_len = CCMP_MIC_LEN, - .owner = THIS_MODULE, -}; - -static int __init ieee80211_crypto_ccmp_init(void) -{ - return ieee80211_register_crypto_ops(&ieee80211_crypt_ccmp); -} - -static void __exit ieee80211_crypto_ccmp_exit(void) -{ - ieee80211_unregister_crypto_ops(&ieee80211_crypt_ccmp); -} - -module_init(ieee80211_crypto_ccmp_init); -module_exit(ieee80211_crypto_ccmp_exit); diff --git a/net/ieee80211/ieee80211_crypt_tkip.c b/net/ieee80211/ieee80211_crypt_tkip.c deleted file mode 100644 index d12da1da6328..000000000000 --- a/net/ieee80211/ieee80211_crypt_tkip.c +++ /dev/null @@ -1,782 +0,0 @@ -/* - * Host AP crypt: host-based TKIP encryption implementation for Host AP driver - * - * Copyright (c) 2003-2004, Jouni Malinen - * -