From 6582c164f2b3b6e58d1f13c1c031b19ee691eb14 Mon Sep 17 00:00:00 2001 From: Jean Tourrilhes Date: Fri, 2 Sep 2005 11:32:28 -0700 Subject: [PATCH] WE-19 for kernel 2.6.13 Hi Jeff, This is version 19 of the Wireless Extensions. It was supposed to be the fallback of the WPA API changes, but people seem quite happy about it (especially Jouni), so the patch is rather small. The patch has been fully tested with 2.6.13 and various wireless drivers, and is in its final version. Would you mind pushing that into Linus's kernel so that the driver and the apps can take advantage ot it ? It includes : o iwstat improvement (explicit dBm). This is the result of long discussions with Dan Williams, the authors of NetworkManager. Thanks to him for all the fruitful feedback. o remove pointer from event stream. I was not totally sure if this pointer was 32-64 bits clean, so I'd rather remove it and be at peace with it. o remove linux header from wireless.h. This has long been requested by people writting user space apps, now it's done, and it was not even painful. o final deprecation of spy_offset. You did not like it, it's now gone for good. o Start deprecating dev->get_wireless_stats -> debloat netdev o Add "check" version of event macros for ieee802.11 stack. Jiri Benc doesn't like the current macros, we aim to please ;-) All those changes, except the last one, have been bit-roting on my web pages for a while... Patches for most kernel drivers will follow. Patches for the Orinoco and the HostAP drivers have been sent to their respective maintainers. Have fun... Jean Signed-off-by: Jeff Garzik --- net/core/wireless.c | 58 +++++++++++++++++++++++++++++++---------------------- 1 file changed, 34 insertions(+), 24 deletions(-) (limited to 'net') diff --git a/net/core/wireless.c b/net/core/wireless.c index 5caae2399f3a..d17f1583ea3e 100644 --- a/net/core/wireless.c +++ b/net/core/wireless.c @@ -58,6 +58,13 @@ * o Add wmb() in iw_handler_set_spy() for non-coherent archs/cpus * Based on patch from Pavel Roskin : * o Fix kernel data leak to user space in private handler handling + * + * v7 - 18.3.05 - Jean II + * o Remove (struct iw_point *)->pointer from events and streams + * o Remove spy_offset from struct iw_handler_def + * o Start deprecating dev->get_wireless_stats, output a warning + * o If IW_QUAL_DBM is set, show dBm values in /proc/net/wireless + * o Don't loose INVALID/DBM flags when clearing UPDATED flags (iwstats) */ /***************************** INCLUDES *****************************/ @@ -446,10 +453,14 @@ static inline struct iw_statistics *get_wireless_stats(struct net_device *dev) (dev->wireless_handlers->get_wireless_stats != NULL)) return dev->wireless_handlers->get_wireless_stats(dev); - /* Old location, will be phased out in next WE */ - return (dev->get_wireless_stats ? - dev->get_wireless_stats(dev) : - (struct iw_statistics *) NULL); + /* Old location, field to be removed in next WE */ + if(dev->get_wireless_stats) { + printk(KERN_DEBUG "%s (WE) : Driver using old /proc/net/wireless support, please fix driver !\n", + dev->name); + return dev->get_wireless_stats(dev); + } + /* Not found */ + return (struct iw_statistics *) NULL; } /* ---------------------------------------------------------------- */ @@ -541,16 +552,18 @@ static __inline__ void wireless_seq_printf_stats(struct seq_file *seq, dev->name, stats->status, stats->qual.qual, stats->qual.updated & IW_QUAL_QUAL_UPDATED ? '.' : ' ', - ((__u8) stats->qual.level), + ((__s32) stats->qual.level) - + ((stats->qual.updated & IW_QUAL_DBM) ? 0x100 : 0), stats->qual.updated & IW_QUAL_LEVEL_UPDATED ? '.' : ' ', - ((__u8) stats->qual.noise), + ((__s32) stats->qual.noise) - + ((stats->qual.updated & IW_QUAL_DBM) ? 0x100 : 0), stats->qual.updated & IW_QUAL_NOISE_UPDATED ? '.' : ' ', stats->discard.nwid, stats->discard.code, stats->discard.fragment, stats->discard.retries, stats->discard.misc, stats->miss.beacon); - stats->qual.updated = 0; + stats->qual.updated &= ~IW_QUAL_ALL_UPDATED; } } @@ -593,6 +606,7 @@ static struct file_operations wireless_seq_fops = { int __init wireless_proc_init(void) { + /* Create /proc/net/wireless entry */ if (!proc_net_fops_create("wireless", S_IRUGO, &wireless_seq_fops)) return -ENOMEM; @@ -627,9 +641,9 @@ static inline int dev_iwstats(struct net_device *dev, struct ifreq *ifr) sizeof(struct iw_statistics))) return -EFAULT; - /* Check if we need to clear the update flag */ + /* Check if we need to clear the updated flag */ if(wrq->u.data.flags != 0) - stats->qual.updated = 0; + stats->qual.updated &= ~IW_QUAL_ALL_UPDATED; return 0; } else return -EOPNOTSUPP; @@ -1161,10 +1175,11 @@ void wireless_send_event(struct net_device * dev, struct iw_event *event; /* Mallocated whole event */ int event_len; /* Its size */ int hdr_len; /* Size of the event header */ + int wrqu_off = 0; /* Offset in wrqu */ /* Don't "optimise" the following variable, it will crash */ unsigned cmd_index; /* *MUST* be unsigned */ - /* Get the description of the IOCTL */ + /* Get the description of the Event */ if(cmd <= SIOCIWLAST) { cmd_index = cmd - SIOCIWFIRST; if(cmd_index < standard_ioctl_num) @@ -1207,6 +1222,8 @@ void wireless_send_event(struct net_device * dev, /* Calculate extra_len - extra is NULL for restricted events */ if(extra != NULL) extra_len = wrqu->data.length * descr->token_size; + /* Always at an offset in wrqu */ + wrqu_off = IW_EV_POINT_OFF; #ifdef WE_EVENT_DEBUG printk(KERN_DEBUG "%s (WE) : Event 0x%04X, tokens %d, extra_len %d\n", dev->name, cmd, wrqu->data.length, extra_len); #endif /* WE_EVENT_DEBUG */ @@ -1217,7 +1234,7 @@ void wireless_send_event(struct net_device * dev, event_len = hdr_len + extra_len; #ifdef WE_EVENT_DEBUG - printk(KERN_DEBUG "%s (WE) : Event 0x%04X, hdr_len %d, event_len %d\n", dev->name, cmd, hdr_len, event_len); + printk(KERN_DEBUG "%s (WE) : Event 0x%04X, hdr_len %d, wrqu_off %d, event_len %d\n", dev->name, cmd, hdr_len, wrqu_off, event_len); #endif /* WE_EVENT_DEBUG */ /* Create temporary buffer to hold the event */ @@ -1228,7 +1245,7 @@ void wireless_send_event(struct net_device * dev, /* Fill event */ event->len = event_len; event->cmd = cmd; - memcpy(&event->u, wrqu, hdr_len - IW_EV_LCP_LEN); + memcpy(&event->u, ((char *) wrqu) + wrqu_off, hdr_len - IW_EV_LCP_LEN); if(extra != NULL) memcpy(((char *) event) + hdr_len, extra, extra_len); @@ -1249,7 +1266,7 @@ void wireless_send_event(struct net_device * dev, * Now, the driver can delegate this task to Wireless Extensions. * It needs to use those standard spy iw_handler in struct iw_handler_def, * push data to us via wireless_spy_update() and include struct iw_spy_data - * in its private part (and advertise it in iw_handler_def->spy_offset). + * in its private part (and export it in net_device->wireless_data->spy_data). * One of the main advantage of centralising spy support here is that * it becomes much easier to improve and extend it without having to touch * the drivers. One example is the addition of the Spy-Threshold events. @@ -1266,10 +1283,7 @@ static inline struct iw_spy_data * get_spydata(struct net_device *dev) /* This is the new way */ if(dev->wireless_data) return(dev->wireless_data->spy_data); - - /* This is the old way. Doesn't work for multi-headed drivers. - * It will be removed in the next version of WE. */ - return (dev->priv + dev->wireless_handlers->spy_offset); + return NULL; } /*------------------------------------------------------------------*/ @@ -1284,10 +1298,6 @@ int iw_handler_set_spy(struct net_device * dev, struct iw_spy_data * spydata = get_spydata(dev); struct sockaddr * address = (struct sockaddr *) extra; - if(!dev->wireless_data) - /* Help user know that driver needs updating */ - printk(KERN_DEBUG "%s (WE) : Driver using old/buggy spy support, please fix driver !\n", - dev->name); /* Make sure driver is not buggy or using the old API */ if(!spydata) return -EOPNOTSUPP; @@ -1318,7 +1328,7 @@ int iw_handler_set_spy(struct net_device * dev, sizeof(struct iw_quality) * IW_MAX_SPY); #ifdef WE_SPY_DEBUG - printk(KERN_DEBUG "iw_handler_set_spy() : offset %ld, spydata %p, num %d\n", dev->wireless_handlers->spy_offset, spydata, wrqu->data.length); + printk(KERN_DEBUG "iw_handler_set_spy() : wireless_data %p, spydata %p, num %d\n", dev->wireless_data, spydata, wrqu->data.length); for (i = 0; i < wrqu->data.length; i++) printk(KERN_DEBUG "%02X:%02X:%02X:%02X:%02X:%02X \n", @@ -1371,7 +1381,7 @@ int iw_handler_get_spy(struct net_device * dev, sizeof(struct iw_quality) * spydata->spy_number); /* Reset updated flags. */ for(i = 0; i < spydata->spy_number; i++) - spydata->spy_stat[i].updated = 0; + spydata->spy_stat[i].updated &= ~IW_QUAL_ALL_UPDATED; return 0; } @@ -1486,7 +1496,7 @@ void wireless_spy_update(struct net_device * dev, return; #ifdef WE_SPY_DEBUG - printk(KERN_DEBUG "wireless_spy_update() : offset %ld, spydata %p, address %02X:%02X:%02X:%02X:%02X:%02X\n", dev->wireless_handlers->spy_offset, spydata, address[0], address[1], address[2], address[3], address[4], address[5]); + printk(KERN_DEBUG "wireless_spy_update() : wireless_data %p, spydata %p, address %02X:%02X:%02X:%02X:%02X:%02X\n", dev->wireless_data, spydata, address[0], address[1], address[2], address[3], address[4], address[5]); #endif /* WE_SPY_DEBUG */ /* Update all records that match */ -- cgit v1.2.3 From bbeec90b98a3066f6f2b8d41c80561f5665e4631 Mon Sep 17 00:00:00 2001 From: Jeff Garzik Date: Wed, 7 Sep 2005 00:27:54 -0400 Subject: [wireless] build fixes after merging WE-19 --- net/ieee80211/ieee80211_wx.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'net') diff --git a/net/ieee80211/ieee80211_wx.c b/net/ieee80211/ieee80211_wx.c index 2cd571c525a9..510a1716a4f0 100644 --- a/net/ieee80211/ieee80211_wx.c +++ b/net/ieee80211/ieee80211_wx.c @@ -29,12 +29,13 @@ Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 ******************************************************************************/ -#include -#include + #include #include #include +#include + static const char *ieee80211_modes[] = { "?", "a", "b", "ab", "g", "ag", "bg", "abg" }; -- cgit v1.2.3 From 0edd5b44913cd0aba6f23b626b407f70bb3fb018 Mon Sep 17 00:00:00 2001 From: Jeff Garzik Date: Wed, 7 Sep 2005 00:48:31 -0400 Subject: [wireless ieee80211,ipw2200] Lindent source code No code changes, just Lindent + manual fixups. This prepares us for updating to the latest Intel driver code, plus gives the source code a nice facelift. --- net/ieee80211/ieee80211_crypt.c | 27 ++- net/ieee80211/ieee80211_crypt_ccmp.c | 47 ++---- net/ieee80211/ieee80211_crypt_tkip.c | 133 ++++++--------- net/ieee80211/ieee80211_crypt_wep.c | 30 +--- net/ieee80211/ieee80211_module.c | 40 +++-- net/ieee80211/ieee80211_rx.c | 310 ++++++++++++++++++----------------- net/ieee80211/ieee80211_tx.c | 66 ++++---- net/ieee80211/ieee80211_wx.c | 68 ++++---- 8 files changed, 327 insertions(+), 394 deletions(-) (limited to 'net') diff --git a/net/ieee80211/ieee80211_crypt.c b/net/ieee80211/ieee80211_crypt.c index 05a6f2f298db..61a9d92e455b 100644 --- a/net/ieee80211/ieee80211_crypt.c +++ b/net/ieee80211/ieee80211_crypt.c @@ -30,7 +30,6 @@ struct ieee80211_crypto_alg { struct ieee80211_crypto_ops *ops; }; - struct ieee80211_crypto { struct list_head algs; spinlock_t lock; @@ -38,8 +37,7 @@ struct ieee80211_crypto { static struct ieee80211_crypto *hcrypt; -void ieee80211_crypt_deinit_entries(struct ieee80211_device *ieee, - int force) +void ieee80211_crypt_deinit_entries(struct ieee80211_device *ieee, int force) { struct list_head *ptr, *n; struct ieee80211_crypt_data *entry; @@ -140,7 +138,7 @@ int ieee80211_unregister_crypto_ops(struct ieee80211_crypto_ops *ops) spin_lock_irqsave(&hcrypt->lock, flags); for (ptr = hcrypt->algs.next; ptr != &hcrypt->algs; ptr = ptr->next) { struct ieee80211_crypto_alg *alg = - (struct ieee80211_crypto_alg *) ptr; + (struct ieee80211_crypto_alg *)ptr; if (alg->ops == ops) { list_del(&alg->list); del_alg = alg; @@ -158,8 +156,7 @@ int ieee80211_unregister_crypto_ops(struct ieee80211_crypto_ops *ops) return del_alg ? 0 : -1; } - -struct ieee80211_crypto_ops * ieee80211_get_crypto_ops(const char *name) +struct ieee80211_crypto_ops *ieee80211_get_crypto_ops(const char *name) { unsigned long flags; struct list_head *ptr; @@ -171,7 +168,7 @@ struct ieee80211_crypto_ops * ieee80211_get_crypto_ops(const char *name) spin_lock_irqsave(&hcrypt->lock, flags); for (ptr = hcrypt->algs.next; ptr != &hcrypt->algs; ptr = ptr->next) { struct ieee80211_crypto_alg *alg = - (struct ieee80211_crypto_alg *) ptr; + (struct ieee80211_crypto_alg *)ptr; if (strcmp(alg->ops->name, name) == 0) { found_alg = alg; break; @@ -185,9 +182,13 @@ struct ieee80211_crypto_ops * ieee80211_get_crypto_ops(const char *name) return NULL; } - -static void * ieee80211_crypt_null_init(int keyidx) { return (void *) 1; } -static void ieee80211_crypt_null_deinit(void *priv) {} +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", @@ -204,7 +205,6 @@ static struct ieee80211_crypto_ops ieee80211_crypt_null = { .owner = THIS_MODULE, }; - static int __init ieee80211_crypto_init(void) { int ret = -ENOMEM; @@ -222,11 +222,10 @@ static int __init ieee80211_crypto_init(void) kfree(hcrypt); hcrypt = NULL; } -out: + out: return ret; } - static void __exit ieee80211_crypto_deinit(void) { struct list_head *ptr, *n; @@ -237,7 +236,7 @@ static void __exit ieee80211_crypto_deinit(void) for (ptr = hcrypt->algs.next, n = ptr->next; ptr != &hcrypt->algs; ptr = n, n = ptr->next) { struct ieee80211_crypto_alg *alg = - (struct ieee80211_crypto_alg *) ptr; + (struct ieee80211_crypto_alg *)ptr; list_del(ptr); printk(KERN_DEBUG "ieee80211_crypt: unregistered algorithm " "'%s' (deinit)\n", alg->ops->name); diff --git a/net/ieee80211/ieee80211_crypt_ccmp.c b/net/ieee80211/ieee80211_crypt_ccmp.c index 11d15573b26a..8fc13f45971e 100644 --- a/net/ieee80211/ieee80211_crypt_ccmp.c +++ b/net/ieee80211/ieee80211_crypt_ccmp.c @@ -24,7 +24,6 @@ #include - #include #include @@ -55,7 +54,7 @@ struct ieee80211_ccmp_data { /* 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]; + 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]; }; @@ -75,7 +74,7 @@ static void ieee80211_ccmp_aes_encrypt(struct crypto_tfm *tfm, crypto_cipher_encrypt(tfm, &dst, &src, AES_BLOCK_LEN); } -static void * ieee80211_ccmp_init(int key_idx) +static void *ieee80211_ccmp_init(int key_idx) { struct ieee80211_ccmp_data *priv; @@ -94,7 +93,7 @@ static void * ieee80211_ccmp_init(int key_idx) return priv; -fail: + fail: if (priv) { if (priv->tfm) crypto_free_tfm(priv->tfm); @@ -104,7 +103,6 @@ fail: return NULL; } - static void ieee80211_ccmp_deinit(void *priv) { struct ieee80211_ccmp_data *_priv = priv; @@ -113,19 +111,16 @@ static void ieee80211_ccmp_deinit(void *priv) kfree(priv); } - -static inline void xor_block(u8 *b, u8 *a, size_t len) +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_tfm *tfm, struct ieee80211_hdr *hdr, - u8 *pn, size_t dlen, u8 *b0, u8 *auth, - u8 *s0) + u8 * pn, size_t dlen, u8 * b0, u8 * auth, u8 * s0) { u8 *pos, qc = 0; size_t aad_len; @@ -142,7 +137,7 @@ static void ccmp_init_blocks(struct crypto_tfm *tfm, if (a4_included) aad_len += 6; if (qc_included) { - pos = (u8 *) &hdr->addr4; + pos = (u8 *) & hdr->addr4; if (a4_included) pos += 6; qc = *pos & 0x0f; @@ -169,14 +164,14 @@ static void ccmp_init_blocks(struct crypto_tfm *tfm, * QC (if present) */ pos = (u8 *) hdr; - aad[0] = 0; /* aad_len >> 8 */ + 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; + pos = (u8 *) & hdr->seq_ctl; aad[22] = pos[0] & 0x0f; - aad[23] = 0; /* all bits masked */ + aad[23] = 0; /* all bits masked */ memset(aad + 24, 0, 8); if (a4_included) memcpy(aad + 24, hdr->addr4, ETH_ALEN); @@ -196,7 +191,6 @@ static void ccmp_init_blocks(struct crypto_tfm *tfm, ieee80211_ccmp_aes_encrypt(tfm, b0, s0); } - static int ieee80211_ccmp_encrypt(struct sk_buff *skb, int hdr_len, void *priv) { struct ieee80211_ccmp_data *key = priv; @@ -209,8 +203,7 @@ static int ieee80211_ccmp_encrypt(struct sk_buff *skb, int hdr_len, void *priv) u8 *s0 = key->tx_s0; if (skb_headroom(skb) < CCMP_HDR_LEN || - skb_tailroom(skb) < CCMP_MIC_LEN || - skb->len < hdr_len) + skb_tailroom(skb) < CCMP_MIC_LEN || skb->len < hdr_len) return -1; data_len = skb->len - hdr_len; @@ -230,13 +223,13 @@ static int ieee80211_ccmp_encrypt(struct sk_buff *skb, int hdr_len, void *priv) *pos++ = key->tx_pn[5]; *pos++ = key->tx_pn[4]; *pos++ = 0; - *pos++ = (key->key_idx << 6) | (1 << 5) /* Ext IV included */; + *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]; - hdr = (struct ieee80211_hdr *) skb->data; + hdr = (struct ieee80211_hdr *)skb->data; ccmp_init_blocks(key->tfm, hdr, key->tx_pn, data_len, b0, b, s0); blocks = (data_len + AES_BLOCK_LEN - 1) / AES_BLOCK_LEN; @@ -261,7 +254,6 @@ static int ieee80211_ccmp_encrypt(struct sk_buff *skb, int hdr_len, void *priv) return 0; } - static int ieee80211_ccmp_decrypt(struct sk_buff *skb, int hdr_len, void *priv) { struct ieee80211_ccmp_data *key = priv; @@ -280,7 +272,7 @@ static int ieee80211_ccmp_decrypt(struct sk_buff *skb, int hdr_len, void *priv) return -1; } - hdr = (struct ieee80211_hdr *) skb->data; + hdr = (struct ieee80211_hdr *)skb->data; pos = skb->data + hdr_len; keyidx = pos[3]; if (!(keyidx & (1 << 5))) { @@ -364,8 +356,7 @@ static int ieee80211_ccmp_decrypt(struct sk_buff *skb, int hdr_len, void *priv) return keyidx; } - -static int ieee80211_ccmp_set_key(void *key, int len, u8 *seq, void *priv) +static int ieee80211_ccmp_set_key(void *key, int len, u8 * seq, void *priv) { struct ieee80211_ccmp_data *data = priv; int keyidx; @@ -395,8 +386,7 @@ static int ieee80211_ccmp_set_key(void *key, int len, u8 *seq, void *priv) return 0; } - -static int ieee80211_ccmp_get_key(void *key, int len, u8 *seq, void *priv) +static int ieee80211_ccmp_get_key(void *key, int len, u8 * seq, void *priv) { struct ieee80211_ccmp_data *data = priv; @@ -419,8 +409,7 @@ static int ieee80211_ccmp_get_key(void *key, int len, u8 *seq, void *priv) return CCMP_TK_LEN; } - -static char * ieee80211_ccmp_print_stats(char *p, void *priv) +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 " @@ -436,7 +425,6 @@ static char * ieee80211_ccmp_print_stats(char *p, void *priv) return p; } - static struct ieee80211_crypto_ops ieee80211_crypt_ccmp = { .name = "CCMP", .init = ieee80211_ccmp_init, @@ -453,18 +441,15 @@ static struct ieee80211_crypto_ops ieee80211_crypt_ccmp = { .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 index f91d92c6df25..d4f9164be1a1 100644 --- a/net/ieee80211/ieee80211_crypt_tkip.c +++ b/net/ieee80211/ieee80211_crypt_tkip.c @@ -23,7 +23,6 @@ #include - #include #include #include @@ -62,7 +61,7 @@ struct ieee80211_tkip_data { u8 rx_hdr[16], tx_hdr[16]; }; -static void * ieee80211_tkip_init(int key_idx) +static void *ieee80211_tkip_init(int key_idx) { struct ieee80211_tkip_data *priv; @@ -88,7 +87,7 @@ static void * ieee80211_tkip_init(int key_idx) return priv; -fail: + fail: if (priv) { if (priv->tfm_michael) crypto_free_tfm(priv->tfm_michael); @@ -100,7 +99,6 @@ fail: return NULL; } - static void ieee80211_tkip_deinit(void *priv) { struct ieee80211_tkip_data *_priv = priv; @@ -111,51 +109,42 @@ static void ieee80211_tkip_deinit(void *priv) kfree(priv); } - static inline u16 RotR1(u16 val) { return (val >> 1) | (val << 15); } - static inline u8 Lo8(u16 val) { return val & 0xff; } - static inline u8 Hi8(u16 val) { return val >> 8; } - static inline u16 Lo16(u32 val) { return val & 0xffff; } - static inline u16 Hi16(u32 val) { return val >> 16; } - static inline u16 Mk16(u8 hi, u8 lo) { return lo | (((u16) hi) << 8); } - -static inline u16 Mk16_le(u16 *v) +static inline u16 Mk16_le(u16 * v) { return le16_to_cpu(*v); } - -static const u16 Sbox[256] = -{ +static const u16 Sbox[256] = { 0xC6A5, 0xF884, 0xEE99, 0xF68D, 0xFF0D, 0xD6BD, 0xDEB1, 0x9154, 0x6050, 0x0203, 0xCEA9, 0x567D, 0xE719, 0xB562, 0x4DE6, 0xEC9A, 0x8F45, 0x1F9D, 0x8940, 0xFA87, 0xEF15, 0xB2EB, 0x8EC9, 0xFB0B, @@ -190,17 +179,16 @@ static const u16 Sbox[256] = 0x82C3, 0x29B0, 0x5A77, 0x1E11, 0x7BCB, 0xA8FC, 0x6DD6, 0x2C3A, }; - static inline u16 _S_(u16 v) { u16 t = Sbox[Hi8(v)]; return Sbox[Lo8(v)] ^ ((t << 8) | (t >> 8)); } - #define PHASE1_LOOP_COUNT 8 -static void tkip_mixing_phase1(u16 *TTAK, const u8 *TK, const u8 *TA, u32 IV32) +static void tkip_mixing_phase1(u16 * TTAK, const u8 * TK, const u8 * TA, + u32 IV32) { int i, j; @@ -221,13 +209,12 @@ static void tkip_mixing_phase1(u16 *TTAK, const u8 *TK, const u8 *TA, u32 IV32) } } - -static void tkip_mixing_phase2(u8 *WEPSeed, const u8 *TK, const u16 *TTAK, +static void tkip_mixing_phase2(u8 * WEPSeed, const u8 * TK, const u16 * TTAK, u16 IV16) { /* Make temporary area overlap WEP seed so that the final copy can be * avoided on little endian hosts. */ - u16 *PPK = (u16 *) &WEPSeed[4]; + u16 *PPK = (u16 *) & WEPSeed[4]; /* Step 1 - make copy of TTAK and bring in TSC */ PPK[0] = TTAK[0]; @@ -238,15 +225,15 @@ static void tkip_mixing_phase2(u8 *WEPSeed, const u8 *TK, const u16 *TTAK, PPK[5] = TTAK[4] + IV16; /* Step 2 - 96-bit bijective mixing using S-box */ - PPK[0] += _S_(PPK[5] ^ Mk16_le((u16 *) &TK[0])); - PPK[1] += _S_(PPK[0] ^ Mk16_le((u16 *) &TK[2])); - PPK[2] += _S_(PPK[1] ^ Mk16_le((u16 *) &TK[4])); - PPK[3] += _S_(PPK[2] ^ Mk16_le((u16 *) &TK[6])); - PPK[4] += _S_(PPK[3] ^ Mk16_le((u16 *) &TK[8])); - PPK[5] += _S_(PPK[4] ^ Mk16_le((u16 *) &TK[10])); - - PPK[0] += RotR1(PPK[5] ^ Mk16_le((u16 *) &TK[12])); - PPK[1] += RotR1(PPK[0] ^ Mk16_le((u16 *) &TK[14])); + PPK[0] += _S_(PPK[5] ^ Mk16_le((u16 *) & TK[0])); + PPK[1] += _S_(PPK[0] ^ Mk16_le((u16 *) & TK[2])); + PPK[2] += _S_(PPK[1] ^ Mk16_le((u16 *) & TK[4])); + PPK[3] += _S_(PPK[2] ^ Mk16_le((u16 *) & TK[6])); + PPK[4] += _S_(PPK[3] ^ Mk16_le((u16 *) & TK[8])); + PPK[5] += _S_(PPK[4] ^ Mk16_le((u16 *) & TK[10])); + + PPK[0] += RotR1(PPK[5] ^ Mk16_le((u16 *) & TK[12])); + PPK[1] += RotR1(PPK[0] ^ Mk16_le((u16 *) & TK[14])); PPK[2] += RotR1(PPK[1]); PPK[3] += RotR1(PPK[2]); PPK[4] += RotR1(PPK[3]); @@ -257,7 +244,7 @@ static void tkip_mixing_phase2(u8 *WEPSeed, const u8 *TK, const u16 *TTAK, WEPSeed[0] = Hi8(IV16); WEPSeed[1] = (Hi8(IV16) | 0x20) & 0x7F; WEPSeed[2] = Lo8(IV16); - WEPSeed[3] = Lo8((PPK[5] ^ Mk16_le((u16 *) &TK[0])) >> 1); + WEPSeed[3] = Lo8((PPK[5] ^ Mk16_le((u16 *) & TK[0])) >> 1); #ifdef __BIG_ENDIAN { @@ -281,7 +268,7 @@ static int ieee80211_tkip_encrypt(struct sk_buff *skb, int hdr_len, void *priv) skb->len < hdr_len) return -1; - hdr = (struct ieee80211_hdr *) skb->data; + hdr = (struct ieee80211_hdr *)skb->data; if (!tkey->tx_phase1_done) { tkip_mixing_phase1(tkey->tx_ttak, tkey->key, hdr->addr2, tkey->tx_iv32); @@ -298,7 +285,7 @@ static int ieee80211_tkip_encrypt(struct sk_buff *skb, int hdr_len, void *priv) *pos++ = rc4key[0]; *pos++ = rc4key[1]; *pos++ = rc4key[2]; - *pos++ = (tkey->key_idx << 6) | (1 << 5) /* Ext IV included */; + *pos++ = (tkey->key_idx << 6) | (1 << 5) /* Ext IV included */ ; *pos++ = tkey->tx_iv32 & 0xff; *pos++ = (tkey->tx_iv32 >> 8) & 0xff; *pos++ = (tkey->tx_iv32 >> 16) & 0xff; @@ -341,7 +328,7 @@ static int ieee80211_tkip_decrypt(struct sk_buff *skb, int hdr_len, void *priv) if (skb->len < hdr_len + 8 + 4) return -1; - hdr = (struct ieee80211_hdr *) skb->data; + hdr = (struct ieee80211_hdr *)skb->data; pos = skb->data + hdr_len; keyidx = pos[3]; if (!(keyidx & (1 << 5))) { @@ -427,9 +414,8 @@ static int ieee80211_tkip_decrypt(struct sk_buff *skb, int hdr_len, void *priv) return keyidx; } - -static int michael_mic(struct ieee80211_tkip_data *tkey, u8 *key, u8 *hdr, - u8 *data, size_t data_len, u8 *mic) +static int michael_mic(struct ieee80211_tkip_data *tkey, u8 * key, u8 * hdr, + u8 * data, size_t data_len, u8 * mic) { struct scatterlist sg[2]; @@ -453,37 +439,37 @@ static int michael_mic(struct ieee80211_tkip_data *tkey, u8 *key, u8 *hdr, return 0; } -static void michael_mic_hdr(struct sk_buff *skb, u8 *hdr) +static void michael_mic_hdr(struct sk_buff *skb, u8 * hdr) { struct ieee80211_hdr *hdr11; - hdr11 = (struct ieee80211_hdr *) skb->data; + hdr11 = (struct ieee80211_hdr *)skb->data; switch (le16_to_cpu(hdr11->frame_ctl) & (IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS)) { case IEEE80211_FCTL_TODS: - memcpy(hdr, hdr11->addr3, ETH_ALEN); /* DA */ - memcpy(hdr + ETH_ALEN, hdr11->addr2, ETH_ALEN); /* SA */ + memcpy(hdr, hdr11->addr3, ETH_ALEN); /* DA */ + memcpy(hdr + ETH_ALEN, hdr11->addr2, ETH_ALEN); /* SA */ break; case IEEE80211_FCTL_FROMDS: - memcpy(hdr, hdr11->addr1, ETH_ALEN); /* DA */ - memcpy(hdr + ETH_ALEN, hdr11->addr3, ETH_ALEN); /* SA */ + memcpy(hdr, hdr11->addr1, ETH_ALEN); /* DA */ + memcpy(hdr + ETH_ALEN, hdr11->addr3, ETH_ALEN); /* SA */ break; case IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS: - memcpy(hdr, hdr11->addr3, ETH_ALEN); /* DA */ - memcpy(hdr + ETH_ALEN, hdr11->addr4, ETH_ALEN); /* SA */ + memcpy(hdr, hdr11->addr3, ETH_ALEN); /* DA */ + memcpy(hdr + ETH_ALEN, hdr11->addr4, ETH_ALEN); /* SA */ break; case 0: - memcpy(hdr, hdr11->addr1, ETH_ALEN); /* DA */ - memcpy(hdr + ETH_ALEN, hdr11->addr2, ETH_ALEN); /* SA */ + memcpy(hdr, hdr11->addr1, ETH_ALEN); /* DA */ + memcpy(hdr + ETH_ALEN, hdr11->addr2, ETH_ALEN); /* SA */ break; } - hdr[12] = 0; /* priority */ - hdr[13] = hdr[14] = hdr[15] = 0; /* reserved */ + hdr[12] = 0; /* priority */ + hdr[13] = hdr[14] = hdr[15] = 0; /* reserved */ } - -static int ieee80211_michael_mic_add(struct sk_buff *skb, int hdr_len, void *priv) +static int ieee80211_michael_mic_add(struct sk_buff *skb, int hdr_len, + void *priv) { struct ieee80211_tkip_data *tkey = priv; u8 *pos; @@ -504,11 +490,9 @@ static int ieee80211_michael_mic_add(struct sk_buff *skb, int hdr_len, void *pri return 0; } - #if WIRELESS_EXT >= 18 static void ieee80211_michael_mic_failure(struct net_device *dev, - struct ieee80211_hdr *hdr, - int keyidx) + struct ieee80211_hdr *hdr, int keyidx) { union iwreq_data wrqu; struct iw_michaelmicfailure ev; @@ -524,12 +508,11 @@ static void ieee80211_michael_mic_failure(struct net_device *dev, memcpy(ev.src_addr.sa_data, hdr->addr2, ETH_ALEN); memset(&wrqu, 0, sizeof(wrqu)); wrqu.data.length = sizeof(ev); - wireless_send_event(dev, IWEVMICHAELMICFAILURE, &wrqu, (char *) &ev); + wireless_send_event(dev, IWEVMICHAELMICFAILURE, &wrqu, (char *)&ev); } #elif WIRELESS_EXT >= 15 static void ieee80211_michael_mic_failure(struct net_device *dev, - struct ieee80211_hdr *hdr, - int keyidx) + struct ieee80211_hdr *hdr, int keyidx) { union iwreq_data wrqu; char buf[128]; @@ -542,17 +525,16 @@ static void ieee80211_michael_mic_failure(struct net_device *dev, wrqu.data.length = strlen(buf); wireless_send_event(dev, IWEVCUSTOM, &wrqu, buf); } -#else /* WIRELESS_EXT >= 15 */ +#else /* WIRELESS_EXT >= 15 */ static inline void ieee80211_michael_mic_failure(struct net_device *dev, - struct ieee80211_hdr *hdr, - int keyidx) + struct ieee80211_hdr *hdr, + int keyidx) { } -#endif /* WIRELESS_EXT >= 15 */ - +#endif /* WIRELESS_EXT >= 15 */ static int ieee80211_michael_mic_verify(struct sk_buff *skb, int keyidx, - int hdr_len, void *priv) + int hdr_len, void *priv) { struct ieee80211_tkip_data *tkey = priv; u8 mic[8]; @@ -566,7 +548,7 @@ static int ieee80211_michael_mic_verify(struct sk_buff *skb, int keyidx, return -1; if (memcmp(mic, skb->data + skb->len - 8, 8) != 0) { struct ieee80211_hdr *hdr; - hdr = (struct ieee80211_hdr *) skb->data; + hdr = (struct ieee80211_hdr *)skb->data; printk(KERN_DEBUG "%s: Michael MIC verification failed for " "MSDU from " MAC_FMT " keyidx=%d\n", skb->dev ? skb->dev->name : "N/A", MAC_ARG(hdr->addr2), @@ -587,8 +569,7 @@ static int ieee80211_michael_mic_verify(struct sk_buff *skb, int keyidx, return 0; } - -static int ieee80211_tkip_set_key(void *key, int len, u8 *seq, void *priv) +static int ieee80211_tkip_set_key(void *key, int len, u8 * seq, void *priv) { struct ieee80211_tkip_data *tkey = priv; int keyidx; @@ -603,10 +584,10 @@ static int ieee80211_tkip_set_key(void *key, int len, u8 *seq, void *priv) if (len == TKIP_KEY_LEN) { memcpy(tkey->key, key, TKIP_KEY_LEN); tkey->key_set = 1; - tkey->tx_iv16 = 1; /* TSC is initialized to 1 */ + tkey->tx_iv16 = 1; /* TSC is initialized to 1 */ if (seq) { tkey->rx_iv32 = (seq[5] << 24) | (seq[4] << 16) | - (seq[3] << 8) | seq[2]; + (seq[3] << 8) | seq[2]; tkey->rx_iv16 = (seq[1] << 8) | seq[0]; } } else if (len == 0) @@ -617,8 +598,7 @@ static int ieee80211_tkip_set_key(void *key, int len, u8 *seq, void *priv) return 0; } - -static int ieee80211_tkip_get_key(void *key, int len, u8 *seq, void *priv) +static int ieee80211_tkip_get_key(void *key, int len, u8 * seq, void *priv) { struct ieee80211_tkip_data *tkey = priv; @@ -647,8 +627,7 @@ static int ieee80211_tkip_get_key(void *key, int len, u8 *seq, void *priv) return TKIP_KEY_LEN; } - -static char * ieee80211_tkip_print_stats(char *p, void *priv) +static char *ieee80211_tkip_print_stats(char *p, void *priv) { struct ieee80211_tkip_data *tkip = priv; p += sprintf(p, "key[%d] alg=TKIP key_set=%d " @@ -674,7 +653,6 @@ static char * ieee80211_tkip_print_stats(char *p, void *priv) return p; } - static struct ieee80211_crypto_ops ieee80211_crypt_tkip = { .name = "TKIP", .init = ieee80211_tkip_init, @@ -686,23 +664,20 @@ static struct ieee80211_crypto_ops ieee80211_crypt_tkip = { .set_key = ieee80211_tkip_set_key, .get_key = ieee80211_tkip_get_key, .print_stats = ieee80211_tkip_print_stats, - .extra_prefix_len = 4 + 4, /* IV + ExtIV */ - .extra_postfix_len = 8 + 4, /* MIC + ICV */ - .owner = THIS_MODULE, + .extra_prefix_len = 4 + 4, /* IV + ExtIV */ + .extra_postfix_len = 8 + 4, /* MIC + ICV */ + .owner = THIS_MODULE, }; - static int __init ieee80211_crypto_tkip_init(void) { return ieee80211_register_crypto_ops(&ieee80211_crypt_tkip); } - static void __exit ieee80211_crypto_tkip_exit(void) { ieee80211_unregister_crypto_ops(&ieee80211_crypt_tkip); } - module_init(ieee80211_crypto_tkip_init); module_exit(ieee80211_crypto_tkip_exit); diff --git a/net/ieee80211/ieee80211_crypt_wep.c b/net/ieee80211/ieee80211_crypt_wep.c index bec1d3470d39..b4d2514a0902 100644 --- a/net/ieee80211/ieee80211_crypt_wep.c +++ b/net/ieee80211/ieee80211_crypt_wep.c @@ -20,7 +20,6 @@ #include - #include #include #include @@ -29,7 +28,6 @@ MODULE_AUTHOR("Jouni Malinen"); MODULE_DESCRIPTION("Host AP crypt: WEP"); MODULE_LICENSE("GPL"); - struct prism2_wep_data { u32 iv; #define WEP_KEY_LEN 13 @@ -39,8 +37,7 @@ struct prism2_wep_data { struct crypto_tfm *tfm; }; - -static void * prism2_wep_init(int keyidx) +static void *prism2_wep_init(int keyidx) { struct prism2_wep_data *priv; @@ -62,7 +59,7 @@ static void * prism2_wep_init(int keyidx) return priv; -fail: + fail: if (priv) { if (priv->tfm) crypto_free_tfm(priv->tfm); @@ -71,7 +68,6 @@ fail: return NULL; } - static void prism2_wep_deinit(void *priv) { struct prism2_wep_data *_priv = priv; @@ -80,7 +76,6 @@ static void prism2_wep_deinit(void *priv) kfree(priv); } - /* Perform WEP encryption on given skb that has at least 4 bytes of headroom * for IV and 4 bytes of tailroom for ICV. Both IV and ICV will be transmitted, * so the payload length increases with 8 bytes. @@ -143,7 +138,6 @@ static int prism2_wep_encrypt(struct sk_buff *skb, int hdr_len, void *priv) return 0; } - /* Perform WEP decryption on given buffer. Buffer includes whole WEP part of * the frame: IV (4 bytes), encrypted payload (including SNAP header), * ICV (4 bytes). len includes both IV and ICV. @@ -202,8 +196,7 @@ static int prism2_wep_decrypt(struct sk_buff *skb, int hdr_len, void *priv) return 0; } - -static int prism2_wep_set_key(void *key, int len, u8 *seq, void *priv) +static int prism2_wep_set_key(void *key, int len, u8 * seq, void *priv) { struct prism2_wep_data *wep = priv; @@ -216,8 +209,7 @@ static int prism2_wep_set_key(void *key, int len, u8 *seq, void *priv) return 0; } - -static int prism2_wep_get_key(void *key, int len, u8 *seq, void *priv) +static int prism2_wep_get_key(void *key, int len, u8 * seq, void *priv) { struct prism2_wep_data *wep = priv; @@ -229,16 +221,13 @@ static int prism2_wep_get_key(void *key, int len, u8 *seq, void *priv) return wep->key_len; } - -static char * prism2_wep_print_stats(char *p, void *priv) +static char *prism2_wep_print_stats(char *p, void *priv) { struct prism2_wep_data *wep = priv; - p += sprintf(p, "key[%d] alg=WEP len=%d\n", - wep->key_idx, wep->key_len); + p += sprintf(p, "key[%d] alg=WEP len=%d\n", wep->key_idx, wep->key_len); return p; } - static struct ieee80211_crypto_ops ieee80211_crypt_wep = { .name = "WEP", .init = prism2_wep_init, @@ -250,23 +239,20 @@ static struct ieee80211_crypto_ops ieee80211_crypt_wep = { .set_key = prism2_wep_set_key, .get_key = prism2_wep_get_key, .print_stats = prism2_wep_print_stats, - .extra_prefix_len = 4, /* IV */ - .extra_postfix_len = 4, /* ICV */ + .extra_prefix_len = 4, /* IV */ + .extra_postfix_len = 4, /* ICV */ .owner = THIS_MODULE, }; - static int __init ieee80211_crypto_wep_init(void) { return ieee80211_register_crypto_ops(&ieee80211_crypt_wep); } - static void __exit ieee80211_crypto_wep_exit(void) { ieee80211_unregister_crypto_ops(&ieee80211_crypt_wep); } - module_init(ieee80211_crypto_wep_init); module_exit(ieee80211_crypto_wep_exit); diff --git a/net/ieee80211/ieee80211_module.c b/net/ieee80211/ieee80211_module.c index 553acb2e93d5..03a47343ddc7 100644 --- a/net/ieee80211/ieee80211_module.c +++ b/net/ieee80211/ieee80211_module.c @@ -54,7 +54,8 @@ #include MODULE_DESCRIPTION("802.11 data/management/control stack"); -MODULE_AUTHOR("Copyright (C) 2004 Intel Corporation "); +MODULE_AUTHOR + ("Copyright (C) 2004 Intel Corporation "); MODULE_LICENSE("GPL"); #define DRV_NAME "ieee80211" @@ -64,9 +65,9 @@ static inline int ieee80211_networks_allocate(struct ieee80211_device *ieee) if (ieee->networks) return 0; - ieee->networks = kmalloc( - MAX_NETWORK_COUNT * sizeof(struct ieee80211_network), - GFP_KERNEL); + ieee->networks = + kmalloc(MAX_NETWORK_COUNT * sizeof(struct ieee80211_network), + GFP_KERNEL); if (!ieee->networks) { printk(KERN_WARNING "%s: Out of memory allocating beacons\n", ieee->dev->name); @@ -94,10 +95,10 @@ static inline void ieee80211_networks_initialize(struct ieee80211_device *ieee) INIT_LIST_HEAD(&ieee->network_free_list); INIT_LIST_HEAD(&ieee->network_list); for (i = 0; i < MAX_NETWORK_COUNT; i++) - list_add_tail(&ieee->networks[i].list, &ieee->network_free_list); + list_add_tail(&ieee->networks[i].list, + &ieee->network_free_list); } - struct net_device *alloc_ieee80211(int sizeof_priv) { struct ieee80211_device *ieee; @@ -118,8 +119,7 @@ struct net_device *alloc_ieee80211(int sizeof_priv) err = ieee80211_networks_allocate(ieee); if (err) { - IEEE80211_ERROR("Unable to allocate beacon storage: %d\n", - err); + IEEE80211_ERROR("Unable to allocate beacon storage: %d\n", err); goto failed; } ieee80211_networks_initialize(ieee); @@ -132,7 +132,7 @@ struct net_device *alloc_ieee80211(int sizeof_priv) /* Default to enabling full open WEP with host based encrypt/decrypt */ ieee->host_encrypt = 1; ieee->host_decrypt = 1; - ieee->ieee802_1x = 1; /* Default to supporting 802.1x */ + ieee->ieee802_1x = 1; /* Default to supporting 802.1x */ INIT_LIST_HEAD(&ieee->crypt_deinit_list); init_timer(&ieee->crypt_deinit_timer); @@ -141,21 +141,20 @@ struct net_device *alloc_ieee80211(int sizeof_priv) spin_lock_init(&ieee->lock); - ieee->wpa_enabled = 0; - ieee->tkip_countermeasures = 0; - ieee->drop_unencrypted = 0; - ieee->privacy_invoked = 0; - ieee->ieee802_1x = 1; + ieee->wpa_enabled = 0; + ieee->tkip_countermeasures = 0; + ieee->drop_unencrypted = 0; + ieee->privacy_invoked = 0; + ieee->ieee802_1x = 1; return dev; - failed: + failed: if (dev) free_netdev(dev); return NULL; } - void free_ieee80211(struct net_device *dev) { struct ieee80211_device *ieee = netdev_priv(dev); @@ -193,7 +192,7 @@ static int show_debug_level(char *page, char **start, off_t offset, return snprintf(page, count, "0x%08X\n", ieee80211_debug_level); } -static int store_debug_level(struct file *file, const char __user *buffer, +static int store_debug_level(struct file *file, const char __user * buffer, unsigned long count, void *data) { char buf[] = "0x00000000"; @@ -264,13 +263,12 @@ static void __exit ieee80211_exit(void) module_param(debug, int, 0444); MODULE_PARM_DESC(debug, "debug output mask"); - module_exit(ieee80211_exit); module_init(ieee80211_init); #endif - -const char *escape_essid(const char *essid, u8 essid_len) { +const char *escape_essid(const char *essid, u8 essid_len) +{ static char escaped[IW_ESSID_MAX_SIZE * 2 + 1]; const char *s = essid; char *d = escaped; @@ -280,7 +278,7 @@ const char *escape_essid(const char *essid, u8 essid_len) { return escaped; } - essid_len = min(essid_len, (u8)IW_ESSID_MAX_SIZE); + essid_len = min(essid_len, (u8) IW_ESSID_MAX_SIZE); while (essid_len--) { if (*s == '\0') { *d++ = '\\'; diff --git a/net/ieee80211/ieee80211_rx.c b/net/ieee80211/ieee80211_rx.c index a5905f53aed7..f7dcd854139e 100644 --- a/net/ieee80211/ieee80211_rx.c +++ b/net/ieee80211/ieee80211_rx.c @@ -52,11 +52,14 @@ static inline void ieee80211_monitor_rx(struct ieee80211_device *ieee, netif_rx(skb); } - /* Called only as a tasklet (software IRQ) */ -static struct ieee80211_frag_entry * -ieee80211_frag_cache_find(struct ieee80211_device *ieee, unsigned int seq, - unsigned int frag, u8 *src, u8 *dst) +static struct ieee80211_frag_entry *ieee80211_frag_cache_find(struct + ieee80211_device + *ieee, + unsigned int seq, + unsigned int frag, + u8 * src, + u8 * dst) { struct ieee80211_frag_entry *entry; int i; @@ -65,10 +68,9 @@ ieee80211_frag_cache_find(struct ieee80211_device *ieee, unsigned int seq, entry = &ieee->frag_cache[i]; if (entry->skb != NULL && time_after(jiffies, entry->first_frag_time + 2 * HZ)) { - IEEE80211_DEBUG_FRAG( - "expiring fragment cache entry " - "seq=%u last_frag=%u\n", - entry->seq, entry->last_frag); + IEEE80211_DEBUG_FRAG("expiring fragment cache entry " + "seq=%u last_frag=%u\n", + entry->seq, entry->last_frag); dev_kfree_skb_any(entry->skb); entry->skb = NULL; } @@ -84,9 +86,8 @@ ieee80211_frag_cache_find(struct ieee80211_device *ieee, unsigned int seq, } /* Called only as a tasklet (software IRQ) */ -static struct sk_buff * -ieee80211_frag_cache_get(struct ieee80211_device *ieee, - struct ieee80211_hdr *hdr) +static struct sk_buff *ieee80211_frag_cache_get(struct ieee80211_device *ieee, + struct ieee80211_hdr *hdr) { struct sk_buff *skb = NULL; u16 sc; @@ -101,9 +102,9 @@ ieee80211_frag_cache_get(struct ieee80211_device *ieee, /* Reserve enough space to fit maximum frame length */ skb = dev_alloc_skb(ieee->dev->mtu + sizeof(struct ieee80211_hdr) + - 8 /* LLC */ + - 2 /* alignment */ + - 8 /* WEP */ + ETH_ALEN /* WDS */); + 8 /* LLC */ + + 2 /* alignment */ + + 8 /* WEP */ + ETH_ALEN /* WDS */ ); if (skb == NULL) return NULL; @@ -135,7 +136,6 @@ ieee80211_frag_cache_get(struct ieee80211_device *ieee, return skb; } - /* Called only as a tasklet (software IRQ) */ static int ieee80211_frag_cache_invalidate(struct ieee80211_device *ieee, struct ieee80211_hdr *hdr) @@ -151,9 +151,8 @@ static int ieee80211_frag_cache_invalidate(struct ieee80211_device *ieee, hdr->addr1); if (entry == NULL) { - IEEE80211_DEBUG_FRAG( - "could not invalidate fragment cache " - "entry (seq=%u)\n", seq); + IEEE80211_DEBUG_FRAG("could not invalidate fragment cache " + "entry (seq=%u)\n", seq); return -1; } @@ -161,7 +160,6 @@ static int ieee80211_frag_cache_invalidate(struct ieee80211_device *ieee, return 0; } - #ifdef NOT_YET /* ieee80211_rx_frame_mgtmt * @@ -201,7 +199,7 @@ ieee80211_rx_frame_mgmt(struct ieee80211_device *ieee, struct sk_buff *skb, return 0; } - if (ieee->iw_mode == IW_MODE_MASTER) { + if (ieee->iw_mode == IW_MODE_MASTER) { if (type != WLAN_FC_TYPE_MGMT && type != WLAN_FC_TYPE_CTRL) { printk(KERN_DEBUG "%s: unknown management frame " "(type=0x%02x, stype=0x%02x) dropped\n", @@ -219,14 +217,13 @@ ieee80211_rx_frame_mgmt(struct ieee80211_device *ieee, struct sk_buff *skb, } #endif - /* See IEEE 802.1H for LLC/SNAP encapsulation/decapsulation */ /* Ethernet-II snap header (RFC1042 for most EtherTypes) */ -static unsigned char rfc1042_header[] = -{ 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; +static unsigned char rfc1042_header[] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; + /* Bridge-Tunnel header (for EtherTypes ETH_P_AARP and ETH_P_IPX) */ static unsigned char bridge_tunnel_header[] = -{ 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 }; + { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 }; /* No encapsulation header if EtherType < 0x600 (=length) */ /* Called by ieee80211_rx_frame_decrypt */ @@ -241,7 +238,7 @@ static int ieee80211_is_eapol_frame(struct ieee80211_device *ieee, if (skb->len < 24) return 0; - hdr = (struct ieee80211_hdr *) skb->data; + hdr = (struct ieee80211_hdr *)skb->data; fc = le16_to_cpu(hdr->frame_ctl); /* check that the frame is unicast frame to us */ @@ -271,7 +268,7 @@ static int ieee80211_is_eapol_frame(struct ieee80211_device *ieee, /* Called only as a tasklet (software IRQ), by ieee80211_rx */ static inline int -ieee80211_rx_frame_decrypt(struct ieee80211_device* ieee, struct sk_buff *skb, +ieee80211_rx_frame_decrypt(struct ieee80211_device *ieee, struct sk_buff *skb, struct ieee80211_crypt_data *crypt) { struct ieee80211_hdr *hdr; @@ -280,12 +277,11 @@ ieee80211_rx_frame_decrypt(struct ieee80211_device* ieee, struct sk_buff *skb, if (crypt == NULL || crypt->ops->decrypt_mpdu == NULL) return 0; - hdr = (struct ieee80211_hdr *) skb->data; + hdr = (struct ieee80211_hdr *)skb->data; hdrlen = ieee80211_get_hdrlen(le16_to_cpu(hdr->frame_ctl)); #ifdef CONFIG_IEEE80211_CRYPT_TKIP - if (ieee->tkip_countermeasures && - strcmp(crypt->ops->name, "TKIP") == 0) { + if (ieee->tkip_countermeasures && strcmp(crypt->ops->name, "TKIP") == 0) { if (net_ratelimit()) { printk(KERN_DEBUG "%s: TKIP countermeasures: dropped " "received packet from " MAC_FMT "\n", @@ -299,9 +295,8 @@ ieee80211_rx_frame_decrypt(struct ieee80211_device* ieee, struct sk_buff *skb, res = crypt->ops->decrypt_mpdu(skb, hdrlen, crypt->priv); atomic_dec(&crypt->refcnt); if (res < 0) { - IEEE80211_DEBUG_DROP( - "decryption failed (SA=" MAC_FMT - ") res=%d\n", MAC_ARG(hdr->addr2), res); + IEEE80211_DEBUG_DROP("decryption failed (SA=" MAC_FMT + ") res=%d\n", MAC_ARG(hdr->addr2), res); if (res == -2) IEEE80211_DEBUG_DROP("Decryption failed ICV " "mismatch (key %d)\n", @@ -313,11 +308,11 @@ ieee80211_rx_frame_decrypt(struct ieee80211_device* ieee, struct sk_buff *skb, return res; } - /* Called only as a tasklet (software IRQ), by ieee80211_rx */ static inline int -ieee80211_rx_frame_decrypt_msdu(struct ieee80211_device* ieee, struct sk_buff *skb, - int keyidx, struct ieee80211_crypt_data *crypt) +ieee80211_rx_frame_decrypt_msdu(struct ieee80211_device *ieee, + struct sk_buff *skb, int keyidx, + struct ieee80211_crypt_data *crypt) { struct ieee80211_hdr *hdr; int res, hdrlen; @@ -325,7 +320,7 @@ ieee80211_rx_frame_decrypt_msdu(struct ieee80211_device* ieee, struct sk_buff *s if (crypt == NULL || crypt->ops->decrypt_msdu == NULL) return 0; - hdr = (struct ieee80211_hdr *) skb->data; + hdr = (struct ieee80211_hdr *)skb->data; hdrlen = ieee80211_get_hdrlen(le16_to_cpu(hdr->frame_ctl)); atomic_inc(&crypt->refcnt); @@ -341,7 +336,6 @@ ieee80211_rx_frame_decrypt_msdu(struct ieee80211_device* ieee, struct sk_buff *s return 0; } - /* All received frames are sent to this function. @skb contains the frame in * IEEE 802.11 format, i.e., in the format it was sent over air. * This function is called only as a tasklet (software IRQ). */ @@ -373,8 +367,7 @@ int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb, stats = &ieee->stats; if (skb->len < 10) { - printk(KERN_INFO "%s: SKB length < 10\n", - dev->name); + printk(KERN_INFO "%s: SKB length < 10\n", dev->name); goto rx_dropped; } @@ -399,8 +392,8 @@ int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb, /* Update spy records */ wireless_spy_update(dev, hdr->addr2, &wstats); } -#endif /* IW_WIRELESS_SPY */ -#endif /* WIRELESS_EXT > 15 */ +#endif /* IW_WIRELESS_SPY */ +#endif /* WIRELESS_EXT > 15 */ hostap_update_rx_stats(local->ap, hdr, rx_stats); #endif @@ -429,8 +422,8 @@ int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb, * stations that do not support WEP key mapping). */ if (!(hdr->addr1[0] & 0x01) || local->bcrx_sta_key) - (void) hostap_handle_sta_crypto(local, hdr, &crypt, - &sta); + (void)hostap_handle_sta_crypto(local, hdr, &crypt, + &sta); #endif /* allow NULL decrypt to indicate an station specific override @@ -451,13 +444,11 @@ int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb, goto rx_dropped; } } - #ifdef NOT_YET if (type != WLAN_FC_TYPE_DATA) { if (type == WLAN_FC_TYPE_MGMT && stype == WLAN_FC_STYPE_AUTH && fc & IEEE80211_FCTL_PROTECTED && ieee->host_decrypt && - (keyidx = hostap_rx_frame_decrypt(ieee, skb, crypt)) < 0) - { + (keyidx = hostap_rx_frame_decrypt(ieee, skb, crypt)) < 0) { printk(KERN_DEBUG "%s: failed to decrypt mgmt::auth " "from " MAC_FMT "\n", dev->name, MAC_ARG(hdr->addr2)); @@ -507,9 +498,9 @@ int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb, } if (ieee->iw_mode == IW_MODE_MASTER && !wds && - (fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) == IEEE80211_FCTL_FROMDS && - ieee->stadev && - memcmp(hdr->addr2, ieee->assoc_ap_addr, ETH_ALEN) == 0) { + (fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) == + IEEE80211_FCTL_FROMDS && ieee->stadev + && memcmp(hdr->addr2, ieee->assoc_ap_addr, ETH_ALEN) == 0) { /* Frame from BSSID of the AP for which we are a client */ skb->dev = dev = ieee->stadev; stats = hostap_get_stats(dev); @@ -521,8 +512,7 @@ int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb, #ifdef NOT_YET if ((ieee->iw_mode == IW_MODE_MASTER || - ieee->iw_mode == IW_MODE_REPEAT) && - !from_assoc_ap) { + ieee->iw_mode == IW_MODE_REPEAT) && !from_assoc_ap) { switch (hostap_handle_sta_rx(ieee, dev, skb, rx_stats, wds != NULL)) { case AP_RX_CONTINUE_NOT_AUTHORIZED: @@ -546,11 +536,10 @@ int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb, stype != IEEE80211_STYPE_DATA_CFPOLL && stype != IEEE80211_STYPE_DATA_CFACKPOLL) { if (stype != IEEE80211_STYPE_NULLFUNC) - IEEE80211_DEBUG_DROP( - "RX: dropped data frame " - "with no data (type=0x%02x, " - "subtype=0x%02x, len=%d)\n", - type, stype, skb->len); + IEEE80211_DEBUG_DROP("RX: dropped data frame " + "with no data (type=0x%02x, " + "subtype=0x%02x, len=%d)\n", + type, stype, skb->len); goto rx_dropped; } @@ -560,7 +549,7 @@ int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb, (keyidx = ieee80211_rx_frame_decrypt(ieee, skb, crypt)) < 0) goto rx_dropped; - hdr = (struct ieee80211_hdr *) skb->data; + hdr = (struct ieee80211_hdr *)skb->data; /* skb: hdr + (possibly fragmented) plaintext payload */ // PR: FIXME: hostap has additional conditions in the "if" below: @@ -614,7 +603,7 @@ int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb, /* this was the last fragment and the frame will be * delivered, so remove skb from fragment cache */ skb = frag_skb; - hdr = (struct ieee80211_hdr *) skb->data; + hdr = (struct ieee80211_hdr *)skb->data; ieee80211_frag_cache_invalidate(ieee, hdr); } @@ -624,28 +613,26 @@ int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb, ieee80211_rx_frame_decrypt_msdu(ieee, skb, keyidx, crypt)) goto rx_dropped; - hdr = (struct ieee80211_hdr *) skb->data; + hdr = (struct ieee80211_hdr *)skb->data; if (crypt && !(fc & IEEE80211_FCTL_PROTECTED) && !ieee->open_wep) { - if (/*ieee->ieee802_1x &&*/ - ieee80211_is_eapol_frame(ieee, skb)) { + if ( /*ieee->ieee802_1x && */ + ieee80211_is_eapol_frame(ieee, skb)) { /* pass unencrypted EAPOL frames even if encryption is * configured */ } else { - IEEE80211_DEBUG_DROP( - "encryption configured, but RX " - "frame not encrypted (SA=" MAC_FMT ")\n", - MAC_ARG(hdr->addr2)); + IEEE80211_DEBUG_DROP("encryption configured, but RX " + "frame not encrypted (SA=" MAC_FMT + ")\n", MAC_ARG(hdr->addr2)); goto rx_dropped; } } if (crypt && !(fc & IEEE80211_FCTL_PROTECTED) && !ieee->open_wep && !ieee80211_is_eapol_frame(ieee, skb)) { - IEEE80211_DEBUG_DROP( - "dropped unencrypted RX data " - "frame from " MAC_FMT - " (drop_unencrypted=1)\n", - MAC_ARG(hdr->addr2)); + IEEE80211_DEBUG_DROP("dropped unencrypted RX data " + "frame from " MAC_FMT + " (drop_unencrypted=1)\n", + MAC_ARG(hdr->addr2)); goto rx_dropped; } @@ -673,8 +660,7 @@ int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb, } else if (!frame_authorized) { printk(KERN_DEBUG "%s: dropped frame from " "unauthorized port (IEEE 802.1X): " - "ethertype=0x%04x\n", - dev->name, ethertype); + "ethertype=0x%04x\n", dev->name, ethertype); goto rx_dropped; } } @@ -702,8 +688,7 @@ int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb, #ifdef NOT_YET if (wds && ((fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) == - IEEE80211_FCTL_TODS) && - skb->len >= ETH_HLEN + ETH_ALEN) { + IEEE80211_FCTL_TODS) && skb->len >= ETH_HLEN + ETH_ALEN) { /* Non-standard frame: get addr4 from its bogus location after * the payload */ memcpy(skb->data + ETH_ALEN, @@ -716,8 +701,7 @@ int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb, stats->rx_bytes += skb->len; #ifdef NOT_YET - if (ieee->iw_mode == IW_MODE_MASTER && !wds && - ieee->ap->bridge_packets) { + if (ieee->iw_mode == IW_MODE_MASTER && !wds && ieee->ap->bridge_packets) { if (dst[0] & 0x01) { /* copy multicast frame both to the higher layers and * to the wireless media */ @@ -743,25 +727,24 @@ int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb, skb2->dev = dev; dev_queue_xmit(skb2); } - #endif if (skb) { skb->protocol = eth_type_trans(skb, dev); memset(skb->cb, 0, sizeof(skb->cb)); skb->dev = dev; - skb->ip_summed = CHECKSUM_NONE; /* 802.11 crc not sufficient */ + skb->ip_summed = CHECKSUM_NONE; /* 802.11 crc not sufficient */ netif_rx(skb); } - rx_exit: + rx_exit: #ifdef NOT_YET if (sta) hostap_handle_sta_release(sta); #endif return 1; - rx_dropped: + rx_dropped: stats->rx_dropped++; /* Returning 0 indicates to caller that we have not handled the SKB-- @@ -785,22 +768,21 @@ static inline int ieee80211_is_ofdm_rate(u8 rate) case IEEE80211_OFDM_RATE_54MB: return 1; } - return 0; + return 0; } - -static inline int ieee80211_network_init( - struct ieee80211_device *ieee, - struct ieee80211_probe_response *beacon, - struct ieee80211_network *network, - struct ieee80211_rx_stats *stats) +static inline int ieee80211_network_init(struct ieee80211_device *ieee, + struct ieee80211_probe_response + *beacon, + struct ieee80211_network *network, + struct ieee80211_rx_stats *stats) { #ifdef CONFIG_IEEE80211_DEBUG char rates_str[64]; char *p; #endif struct ieee80211_info_element *info_element; - u16 left; + u16 left; u8 i; /* Pull out fixed field data */ @@ -810,7 +792,7 @@ static inline int ieee80211_network_init( network->time_stamp[0] = beacon->time_stamp[0]; network->time_stamp[1] = beacon->time_stamp[1]; network->beacon_interval = beacon->beacon_interval; - /* Where to pull this? beacon->listen_interval;*/ + /* Where to pull this? beacon->listen_interval; */ network->listen_interval = 0x0A; network->rates_len = network->rates_ex_len = 0; network->last_associate = 0; @@ -824,18 +806,20 @@ static inline int ieee80211_network_init( } else network->flags |= NETWORK_HAS_CCK; - network->wpa_ie_len = 0; - network->rsn_ie_len = 0; + network->wpa_ie_len = 0; + network->rsn_ie_len = 0; - info_element = &beacon->info_element; + info_element = &beacon->info_element; left = stats->len - ((void *)info_element - (void *)beacon); while (left >= sizeof(struct ieee80211_info_element_hdr)) { - if (sizeof(struct ieee80211_info_element_hdr) + info_element->len > left) { - IEEE80211_DEBUG_SCAN("SCAN: parse failed: info_element->len + 2 > left : info_element->len+2=%Zd left=%d.\n", - info_element->len + sizeof(struct ieee80211_info_element), - left); + if (sizeof(struct ieee80211_info_element_hdr) + + info_element->len > left) { + IEEE80211_DEBUG_SCAN + ("SCAN: parse failed: info_element->len + 2 > left : info_element->len+2=%Zd left=%d.\n", + info_element->len + + sizeof(struct ieee80211_info_element), left); return 1; - } + } switch (info_element->id) { case MFIE_TYPE_SSID: @@ -846,10 +830,11 @@ static inline int ieee80211_network_init( } network->ssid_len = min(info_element->len, - (u8)IW_ESSID_MAX_SIZE); - memcpy(network->ssid, info_element->data, network->ssid_len); - if (network->ssid_len < IW_ESSID_MAX_SIZE) - memset(network->ssid + network->ssid_len, 0, + (u8) IW_ESSID_MAX_SIZE); + memcpy(network->ssid, info_element->data, + network->ssid_len); + if (network->ssid_len < IW_ESSID_MAX_SIZE) + memset(network->ssid + network->ssid_len, 0, IW_ESSID_MAX_SIZE - network->ssid_len); IEEE80211_DEBUG_SCAN("MFIE_TYPE_SSID: '%s' len=%d.\n", @@ -860,18 +845,23 @@ static inline int ieee80211_network_init( #ifdef CONFIG_IEEE80211_DEBUG p = rates_str; #endif - network->rates_len = min(info_element->len, MAX_RATES_LENGTH); + network->rates_len = + min(info_element->len, MAX_RATES_LENGTH); for (i = 0; i < network->rates_len; i++) { network->rates[i] = info_element->data[i]; #ifdef CONFIG_IEEE80211_DEBUG - p += snprintf(p, sizeof(rates_str) - (p - rates_str), "%02X ", network->rates[i]); + p += snprintf(p, + sizeof(rates_str) - (p - + rates_str), + "%02X ", network->rates[i]); #endif - if (ieee80211_is_ofdm_rate(info_element->data[i])) { + if (ieee80211_is_ofdm_rate + (info_element->data[i])) { network->flags |= NETWORK_HAS_OFDM; if (info_element->data[i] & IEEE80211_BASIC_RATE_MASK) network->flags &= - ~NETWORK_HAS_CCK; + ~NETWORK_HAS_CCK; } } @@ -883,18 +873,23 @@ static inline int ieee80211_network_init( #ifdef CONFIG_IEEE80211_DEBUG p = rates_str; #endif - network->rates_ex_len = min(info_element->len, MAX_RATES_EX_LENGTH); + network->rates_ex_len = + min(info_element->len, MAX_RATES_EX_LENGTH); for (i = 0; i < network->rates_ex_len; i++) { network->rates_ex[i] = info_element->data[i]; #ifdef CONFIG_IEEE80211_DEBUG - p += snprintf(p, sizeof(rates_str) - (p - rates_str), "%02X ", network->rates[i]); + p += snprintf(p, + sizeof(rates_str) - (p - + rates_str), + "%02X ", network->rates[i]); #endif - if (ieee80211_is_ofdm_rate(info_element->data[i])) { + if (ieee80211_is_ofdm_rate + (info_element->data[i])) { network->flags |= NETWORK_HAS_OFDM; if (info_element->data[i] & IEEE80211_BASIC_RATE_MASK) network->flags &= - ~NETWORK_HAS_CCK; + ~NETWORK_HAS_CCK; } } @@ -903,14 +898,14 @@ static inline int ieee80211_network_init( break; case MFIE_TYPE_DS_SET: - IEEE80211_DEBUG_SCAN("MFIE_TYPE_DS_SET: %d\n", + IEEE80211_DEBUG_SCAN("MFIE_TYPE_DS_SET: %d\n", info_element->data[0]); if (stats->freq == IEEE80211_24GHZ_BAND) network->channel = info_element->data[0]; break; - case MFIE_TYPE_FH_SET: - IEEE80211_DEBUG_SCAN("MFIE_TYPE_FH_SET: ignored\n"); + case MFIE_TYPE_FH_SET: + IEEE80211_DEBUG_SCAN("MFIE_TYPE_FH_SET: ignored\n"); break; case MFIE_TYPE_CF_SET: @@ -932,13 +927,13 @@ static inline int ieee80211_network_init( case MFIE_TYPE_GENERIC: IEEE80211_DEBUG_SCAN("MFIE_TYPE_GENERIC: %d bytes\n", info_element->len); - if (info_element->len >= 4 && + if (info_element->len >= 4 && info_element->data[0] == 0x00 && info_element->data[1] == 0x50 && info_element->data[2] == 0xf2 && info_element->data[3] == 0x01) { network->wpa_ie_len = min(info_element->len + 2, - MAX_WPA_IE_LEN); + MAX_WPA_IE_LEN); memcpy(network->wpa_ie, info_element, network->wpa_ie_len); } @@ -948,7 +943,7 @@ static inline int ieee80211_network_init( IEEE80211_DEBUG_SCAN("MFIE_TYPE_RSN: %d bytes\n", info_element->len); network->rsn_ie_len = min(info_element->len + 2, - MAX_WPA_IE_LEN); + MAX_WPA_IE_LEN); memcpy(network->rsn_ie, info_element, network->rsn_ie_len); break; @@ -956,14 +951,14 @@ static inline int ieee80211_network_init( default: IEEE80211_DEBUG_SCAN("unsupported IE %d\n", info_element->id); - break; - } + break; + } left -= sizeof(struct ieee80211_info_element_hdr) + - info_element->len; + info_element->len; info_element = (struct ieee80211_info_element *) - &info_element->data[info_element->len]; - } + &info_element->data[info_element->len]; + } network->mode = 0; if (stats->freq == IEEE80211_52GHZ_BAND) @@ -1032,10 +1027,13 @@ static inline void update_network(struct ieee80211_network *dst, /* dst->last_associate is not overwritten */ } -static inline void ieee80211_process_probe_response( - struct ieee80211_device *ieee, - struct ieee80211_probe_response *beacon, - struct ieee80211_rx_stats *stats) +static inline void ieee80211_process_probe_response(struct ieee80211_device + *ieee, + struct + ieee80211_probe_response + *beacon, + struct ieee80211_rx_stats + *stats) { struct ieee80211_network network; struct ieee80211_network *target; @@ -1045,33 +1043,35 @@ static inline void ieee80211_process_probe_response( #endif unsigned long flags; - IEEE80211_DEBUG_SCAN( - "'%s' (" MAC_FMT "): %c%c%c%c %c%c%c%c-%c%c%c%c %c%c%c%c\n", - escape_essid(info_element->data, info_element->len), - MAC_ARG(beacon->header.addr3), - (beacon->capability & (1<<0xf)) ? '1' : '0', - (beacon->capability & (1<<0xe)) ? '1' : '0', - (beacon->capability & (1<<0xd)) ? '1' : '0', - (beacon->capability & (1<<0xc)) ? '1' : '0', - (beacon->capability & (1<<0xb)) ? '1' : '0', - (beacon->capability & (1<<0xa)) ? '1' : '0', - (beacon->capability & (1<<0x9)) ? '1' : '0', - (beacon->capability & (1<<0x8)) ? '1' : '0', - (beacon->capability & (1<<0x7)) ? '1' : '0', - (beacon->capability & (1<<0x6)) ? '1' : '0', - (beacon->capability & (1<<0x5)) ? '1' : '0', - (beacon->capability & (1<<0x4)) ? '1' : '0', - (beacon->capability & (1<<0x3)) ? '1' : '0', - (beacon->capability & (1<<0x2)) ? '1' : '0', - (beacon->capability & (1<<0x1)) ? '1' : '0', - (beacon->capability & (1<<0x0)) ? '1' : '0'); + IEEE80211_DEBUG_SCAN("'%s' (" MAC_FMT + "): %c%c%c%c %c%c%c%c-%c%c%c%c %c%c%c%c\n", + escape_essid(info_element->data, + info_element->len), + MAC_ARG(beacon->header.addr3), + (beacon->capability & (1 << 0xf)) ? '1' : '0', + (beacon->capability & (1 << 0xe)) ? '1' : '0', + (beacon->capability & (1 << 0xd)) ? '1' : '0', + (beacon->capability & (1 << 0xc)) ? '1' : '0', + (beacon->capability & (1 << 0xb)) ? '1' : '0', + (beacon->capability & (1 << 0xa)) ? '1' : '0', + (beacon->capability & (1 << 0x9)) ? '1' : '0', + (beacon->capability & (1 << 0x8)) ? '1' : '0', + (beacon->capability & (1 << 0x7)) ? '1' : '0', + (beacon->capability & (1 << 0x6)) ? '1' : '0', + (beacon->capability & (1 << 0x5)) ? '1' : '0', + (beacon->capability & (1 << 0x4)) ? '1' : '0', + (beacon->capability & (1 << 0x3)) ? '1' : '0', + (beacon->capability & (1 << 0x2)) ? '1' : '0', + (beacon->capability & (1 << 0x1)) ? '1' : '0', + (beacon->capability & (1 << 0x0)) ? '1' : '0'); if (ieee80211_network_init(ieee, beacon, &network, stats)) { IEEE80211_DEBUG_SCAN("Dropped '%s' (" MAC_FMT ") via %s.\n", escape_essid(info_element->data, info_element->len), MAC_ARG(beacon->header.addr3), - WLAN_FC_GET_STYPE(beacon->header.frame_ctl) == + WLAN_FC_GET_STYPE(beacon->header. + frame_ctl) == IEEE80211_STYPE_PROBE_RESP ? "PROBE RESPONSE" : "BEACON"); return; @@ -1117,13 +1117,13 @@ static inline void ieee80211_process_probe_response( list_del(ieee->network_free_list.next); } - #ifdef CONFIG_IEEE80211_DEBUG IEEE80211_DEBUG_SCAN("Adding '%s' (" MAC_FMT ") via %s.\n", escape_essid(network.ssid, network.ssid_len), MAC_ARG(network.bssid), - WLAN_FC_GET_STYPE(beacon->header.frame_ctl) == + WLAN_FC_GET_STYPE(beacon->header. + frame_ctl) == IEEE80211_STYPE_PROBE_RESP ? "PROBE RESPONSE" : "BEACON"); #endif @@ -1134,7 +1134,8 @@ static inline void ieee80211_process_probe_response( escape_essid(target->ssid, target->ssid_len), MAC_ARG(target->bssid), - WLAN_FC_GET_STYPE(beacon->header.frame_ctl) == + WLAN_FC_GET_STYPE(beacon->header. + frame_ctl) == IEEE80211_STYPE_PROBE_RESP ? "PROBE RESPONSE" : "BEACON"); update_network(target, &network); @@ -1162,16 +1163,20 @@ void ieee80211_rx_mgt(struct ieee80211_device *ieee, IEEE80211_DEBUG_MGMT("received PROBE RESPONSE (%d)\n", WLAN_FC_GET_STYPE(header->frame_ctl)); IEEE80211_DEBUG_SCAN("Probe response\n"); - ieee80211_process_probe_response( - ieee, (struct ieee80211_probe_response *)header, stats); + ieee80211_process_probe_response(ieee, + (struct + ieee80211_probe_response *) + header, stats); break; case IEEE80211_STYPE_BEACON: IEEE80211_DEBUG_MGMT("received BEACON (%d)\n", WLAN_FC_GET_STYPE(header->frame_ctl)); IEEE80211_DEBUG_SCAN("Beacon\n"); - ieee80211_process_probe_response( - ieee, (struct ieee80211_probe_response *)header, stats); + ieee80211_process_probe_response(ieee, + (struct + ieee80211_probe_response *) + header, stats); break; default: @@ -1184,6 +1189,5 @@ void ieee80211_rx_mgt(struct ieee80211_device *ieee, } } - EXPORT_SYMBOL(ieee80211_rx_mgt); EXPORT_SYMBOL(ieee80211_rx); diff --git a/net/ieee80211/ieee80211_tx.c b/net/ieee80211/ieee80211_tx.c index b7ea3e25e25d..c9aaff3fea1e 100644 --- a/net/ieee80211/ieee80211_tx.c +++ b/net/ieee80211/ieee80211_tx.c @@ -45,10 +45,8 @@ #include - /* - 802.11 Data Frame ,-------------------------------------------------------------------. @@ -82,7 +80,6 @@ Desc. | IV | Encrypted | ICV | `-----------------------' Total: 8 non-data bytes - 802.3 Ethernet Data Frame ,-----------------------------------------. @@ -131,7 +128,7 @@ payload of each frame is reduced to 492 bytes. static u8 P802_1H_OUI[P80211_OUI_LEN] = { 0x00, 0x00, 0xf8 }; static u8 RFC1042_OUI[P80211_OUI_LEN] = { 0x00, 0x00, 0x00 }; -static inline int ieee80211_put_snap(u8 *data, u16 h_proto) +static inline int ieee80211_put_snap(u8 * data, u16 h_proto) { struct ieee80211_snap_hdr *snap; u8 *oui; @@ -149,17 +146,15 @@ static inline int ieee80211_put_snap(u8 *data, u16 h_proto) snap->oui[1] = oui[1]; snap->oui[2] = oui[2]; - *(u16 *)(data + SNAP_SIZE) = htons(h_proto); + *(u16 *) (data + SNAP_SIZE) = htons(h_proto); return SNAP_SIZE + sizeof(u16); } -static inline int ieee80211_encrypt_fragment( - struct ieee80211_device *ieee, - struct sk_buff *frag, - int hdr_len) +static inline int ieee80211_encrypt_fragment(struct ieee80211_device *ieee, + struct sk_buff *frag, int hdr_len) { - struct ieee80211_crypt_data* crypt = ieee->crypt[ieee->tx_keyidx]; + struct ieee80211_crypt_data *crypt = ieee->crypt[ieee->tx_keyidx]; int res; #ifdef CONFIG_IEEE80211_CRYPT_TKIP @@ -167,7 +162,7 @@ static inline int ieee80211_encrypt_fragment( if (ieee->tkip_countermeasures && crypt && crypt->ops && strcmp(crypt->ops->name, "TKIP") == 0) { - header = (struct ieee80211_hdr *) frag->data; + header = (struct ieee80211_hdr *)frag->data; if (net_ratelimit()) { printk(KERN_DEBUG "%s: TKIP countermeasures: dropped " "TX packet to " MAC_FMT "\n", @@ -200,8 +195,8 @@ static inline int ieee80211_encrypt_fragment( return 0; } - -void ieee80211_txb_free(struct ieee80211_txb *txb) { +void ieee80211_txb_free(struct ieee80211_txb *txb) +{ int i; if (unlikely(!txb)) return; @@ -216,9 +211,8 @@ static struct ieee80211_txb *ieee80211_alloc_txb(int nr_frags, int txb_size, { struct ieee80211_txb *txb; int i; - txb = kmalloc( - sizeof(struct ieee80211_txb) + (sizeof(u8*) * nr_frags), - gfp_mask); + txb = kmalloc(sizeof(struct ieee80211_txb) + (sizeof(u8 *) * nr_frags), + gfp_mask); if (!txb) return NULL; @@ -243,8 +237,7 @@ static struct ieee80211_txb *ieee80211_alloc_txb(int nr_frags, int txb_size, } /* SKBs are added to the ieee->tx_queue. */ -int ieee80211_xmit(struct sk_buff *skb, - struct net_device *dev) +int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev) { struct ieee80211_device *ieee = netdev_priv(dev); struct ieee80211_txb *txb = NULL; @@ -255,21 +248,20 @@ int ieee80211_xmit(struct sk_buff *skb, int ether_type, encrypt; int bytes, fc, hdr_len; struct sk_buff *skb_frag; - struct ieee80211_hdr header = { /* Ensure zero initialized */ + struct ieee80211_hdr header = { /* Ensure zero initialized */ .duration_id = 0, .seq_ctl = 0 }; u8 dest[ETH_ALEN], src[ETH_ALEN]; - struct ieee80211_crypt_data* crypt; + struct ieee80211_crypt_data *crypt; spin_lock_irqsave(&ieee->lock, flags); /* If there is no driver handler to take the TXB, dont' bother * creating it... */ if (!ieee->hard_start_xmit) { - printk(KERN_WARNING "%s: No xmit handler.\n", - ieee->dev->name); + printk(KERN_WARNING "%s: No xmit handler.\n", ieee->dev->name); goto success; } @@ -284,7 +276,7 @@ int ieee80211_xmit(struct sk_buff *skb, crypt = ieee->crypt[ieee->tx_keyidx]; encrypt = !(ether_type == ETH_P_PAE && ieee->ieee802_1x) && - ieee->host_encrypt && crypt && crypt->ops; + ieee->host_encrypt && crypt && crypt->ops; if (!encrypt && ieee->ieee802_1x && ieee->drop_unencrypted && ether_type != ETH_P_PAE) { @@ -294,7 +286,7 @@ int ieee80211_xmit(struct sk_buff *skb, /* Save source and destination addresses */ memcpy(&dest, skb->data, ETH_ALEN); - memcpy(&src, skb->data+ETH_ALEN, ETH_ALEN); + memcpy(&src, skb->data + ETH_ALEN, ETH_ALEN); /* Advance the SKB to the start of the payload */ skb_pull(skb, sizeof(struct ethhdr)); @@ -304,7 +296,7 @@ int ieee80211_xmit(struct sk_buff *skb, if (encrypt) fc = IEEE80211_FTYPE_DATA | IEEE80211_STYPE_DATA | - IEEE80211_FCTL_PROTECTED; + IEEE80211_FCTL_PROTECTED; else fc = IEEE80211_FTYPE_DATA | IEEE80211_STYPE_DATA; @@ -327,8 +319,7 @@ int ieee80211_xmit(struct sk_buff *skb, /* Determine fragmentation size based on destination (multicast * and broadcast are not fragmented) */ - if (is_multicast_ether_addr(dest) || - is_broadcast_ether_addr(dest)) + if (is_multicast_ether_addr(dest) || is_broadcast_ether_addr(dest)) frag_size = MAX_FRAG_THRESHOLD; else frag_size = ieee->fts; @@ -345,7 +336,7 @@ int ieee80211_xmit(struct sk_buff *skb, /* Each fragment may need to have room for encryptiong pre/postfix */ if (encrypt) bytes_per_frag -= crypt->ops->extra_prefix_len + - crypt->ops->extra_postfix_len; + crypt->ops->extra_postfix_len; /* Number of fragments is the total bytes_per_frag / * payload_per_fragment */ @@ -380,19 +371,19 @@ int ieee80211_xmit(struct sk_buff *skb, /* If this is not the last fragment, then add the MOREFRAGS * bit to the frame control */ if (i != nr_frags - 1) { - frag_hdr->frame_ctl = cpu_to_le16( - fc | IEEE80211_FCTL_MOREFRAGS); + frag_hdr->frame_ctl = + cpu_to_le16(fc | IEEE80211_FCTL_MOREFRAGS); bytes = bytes_per_frag; } else { /* The last fragment takes the remaining length */ bytes = bytes_last_frag; } - /* Put a SNAP header on the first fragment */ + /* Put a SNAP header on the first fragment */ if (i == 0) { - ieee80211_put_snap( - skb_put(skb_frag, SNAP_SIZE + sizeof(u16)), - ether_type); + ieee80211_put_snap(skb_put + (skb_frag, SNAP_SIZE + sizeof(u16)), + ether_type); bytes -= SNAP_SIZE + sizeof(u16); } @@ -410,14 +401,13 @@ int ieee80211_xmit(struct sk_buff *skb, skb_put(skb_frag, 4); } - - success: + success: spin_unlock_irqrestore(&ieee->lock, flags); dev_kfree_skb_any(skb); if (txb) { - if ((*ieee->hard_start_xmit)(txb, dev) == 0) { + if ((*ieee->hard_start_xmit) (txb, dev) == 0) { stats->tx_packets++; stats->tx_bytes += txb->payload_size; return 0; @@ -427,7 +417,7 @@ int ieee80211_xmit(struct sk_buff *skb, return 0; - failed: + failed: spin_unlock_irqrestore(&ieee->lock, flags); netif_stop_queue(dev); stats->tx_errors++; diff --git a/net/ieee80211/ieee80211_wx.c b/net/ieee80211/ieee80211_wx.c index 510a1716a4f0..94882f39b072 100644 --- a/net/ieee80211/ieee80211_wx.c +++ b/net/ieee80211/ieee80211_wx.c @@ -42,7 +42,7 @@ static const char *ieee80211_modes[] = { #define MAX_CUSTOM_LEN 64 static inline char *ipw2100_translate_scan(struct ieee80211_device *ieee, - char *start, char *stop, + char *start, char *stop, struct ieee80211_network *network) { char custom[MAX_CUSTOM_LEN]; @@ -66,29 +66,28 @@ static inline char *ipw2100_translate_scan(struct ieee80211_device *ieee, iwe.u.data.length = sizeof(""); start = iwe_stream_add_point(start, stop, &iwe, ""); } else { - iwe.u.data.length = min(network->ssid_len, (u8)32); + iwe.u.data.length = min(network->ssid_len, (u8) 32); start = iwe_stream_add_point(start, stop, &iwe, network->ssid); } /* Add the protocol name */ iwe.cmd = SIOCGIWNAME; - snprintf(iwe.u.name, IFNAMSIZ, "IEEE 802.11%s", ieee80211_modes[network->mode]); + snprintf(iwe.u.name, IFNAMSIZ, "IEEE 802.11%s", + ieee80211_modes[network->mode]); start = iwe_stream_add_event(start, stop, &iwe, IW_EV_CHAR_LEN); - /* Add mode */ - iwe.cmd = SIOCGIWMODE; - if (network->capability & - (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)) { + /* Add mode */ + iwe.cmd = SIOCGIWMODE; + if (network->capability & (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)) { if (network->capability & WLAN_CAPABILITY_ESS) iwe.u.mode = IW_MODE_MASTER; else iwe.u.mode = IW_MODE_ADHOC; - start = iwe_stream_add_event(start, stop, &iwe, - IW_EV_UINT_LEN); + start = iwe_stream_add_event(start, stop, &iwe, IW_EV_UINT_LEN); } - /* Add frequency/channel */ + /* Add frequency/channel */ iwe.cmd = SIOCGIWFREQ; /* iwe.u.freq.m = ieee80211_frequency(network->channel, network->mode); iwe.u.freq.e = 3; */ @@ -110,7 +109,7 @@ static inline char *ipw2100_translate_scan(struct ieee80211_device *ieee, max_rate = 0; p = custom; p += snprintf(p, MAX_CUSTOM_LEN - (p - custom), " Rates (Mb/s): "); - for (i = 0, j = 0; i < network->rates_len; ) { + for (i = 0, j = 0; i < network->rates_len;) { if (j < network->rates_ex_len && ((network->rates_ex[j] & 0x7F) < (network->rates[i] & 0x7F))) @@ -133,8 +132,7 @@ static inline char *ipw2100_translate_scan(struct ieee80211_device *ieee, iwe.cmd = SIOCGIWRATE; iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0; iwe.u.bitrate.value = max_rate * 500000; - start = iwe_stream_add_event(start, stop, &iwe, - IW_EV_PARAM_LEN); + start = iwe_stream_add_event(start, stop, &iwe, IW_EV_PARAM_LEN); iwe.cmd = IWEVCUSTOM; iwe.u.data.length = p - custom; @@ -164,7 +162,7 @@ static inline char *ipw2100_translate_scan(struct ieee80211_device *ieee, if (iwe.u.data.length) start = iwe_stream_add_point(start, stop, &iwe, custom); - if (ieee->wpa_enabled && network->wpa_ie_len){ + if (ieee->wpa_enabled && network->wpa_ie_len) { char buf[MAX_WPA_IE_LEN * 2 + 30]; u8 *p = buf; @@ -179,7 +177,7 @@ static inline char *ipw2100_translate_scan(struct ieee80211_device *ieee, start = iwe_stream_add_point(start, stop, &iwe, buf); } - if (ieee->wpa_enabled && network->rsn_ie_len){ + if (ieee->wpa_enabled && network->rsn_ie_len) { char buf[MAX_WPA_IE_LEN * 2 + 30]; u8 *p = buf; @@ -199,12 +197,12 @@ static inline char *ipw2100_translate_scan(struct ieee80211_device *ieee, iwe.cmd = IWEVCUSTOM; p = custom; p += snprintf(p, MAX_CUSTOM_LEN - (p - custom), - " Last beacon: %lums ago", (jiffies - network->last_scanned) / (HZ / 100)); + " Last beacon: %lums ago", + (jiffies - network->last_scanned) / (HZ / 100)); iwe.u.data.length = p - custom; if (iwe.u.data.length) start = iwe_stream_add_point(start, stop, &iwe, custom); - return start; } @@ -229,18 +227,19 @@ int ieee80211_wx_get_scan(struct ieee80211_device *ieee, time_after(network->last_scanned + ieee->scan_age, jiffies)) ev = ipw2100_translate_scan(ieee, ev, stop, network); else - IEEE80211_DEBUG_SCAN( - "Not showing network '%s (" - MAC_FMT ")' due to age (%lums).\n", - escape_essid(network->ssid, - network->ssid_len), - MAC_ARG(network->bssid), - (jiffies - network->last_scanned) / (HZ / 100)); + IEEE80211_DEBUG_SCAN("Not showing network '%s (" + MAC_FMT ")' due to age (%lums).\n", + escape_essid(network->ssid, + network->ssid_len), + MAC_ARG(network->bssid), + (jiffies - + network->last_scanned) / (HZ / + 100)); } spin_unlock_irqrestore(&ieee->lock, flags); - wrqu->data.length = ev - extra; + wrqu->data.length = ev - extra; wrqu->data.flags = 0; IEEE80211_DEBUG_WX("exit: %d networks returned.\n", i); @@ -292,8 +291,8 @@ int ieee80211_wx_set_encode(struct ieee80211_device *ieee, if (ieee->crypt[i] != NULL) { if (key_provided) break; - ieee80211_crypt_delayed_deinit( - ieee, &ieee->crypt[i]); + ieee80211_crypt_delayed_deinit(ieee, + &ieee->crypt[i]); } } @@ -306,8 +305,6 @@ int ieee80211_wx_set_encode(struct ieee80211_device *ieee, goto done; } - - sec.enabled = 1; sec.flags |= SEC_ENABLED; @@ -341,8 +338,7 @@ int ieee80211_wx_set_encode(struct ieee80211_device *ieee, new_crypt = NULL; printk(KERN_WARNING "%s: could not initialize WEP: " - "load module ieee80211_crypt_wep\n", - dev->name); + "load module ieee80211_crypt_wep\n", dev->name); return -EOPNOTSUPP; } *crypt = new_crypt; @@ -359,7 +355,7 @@ int ieee80211_wx_set_encode(struct ieee80211_device *ieee, key, escape_essid(sec.keys[key], len), erq->length, len); sec.key_sizes[key] = len; - (*crypt)->ops->set_key(sec.keys[key], len, NULL, + (*crypt)->ops->set_key(sec.keys[key], len, NULL, (*crypt)->priv); sec.flags |= (1 << key); /* This ensures a key will be activated if no key is @@ -382,15 +378,15 @@ int ieee80211_wx_set_encode(struct ieee80211_device *ieee, /* No key data - just set the default TX key index */ if (key_provided) { - IEEE80211_DEBUG_WX( - "Setting key %d to default Tx key.\n", key); + IEEE80211_DEBUG_WX + ("Setting key %d to default Tx key.\n", key); ieee->tx_keyidx = key; sec.active_key = key; sec.flags |= SEC_ACTIVE_KEY; } } - done: + done: ieee->open_wep = !(erq->flags & IW_ENCODE_RESTRICTED); sec.auth_mode = ieee->open_wep ? WLAN_AUTH_OPEN : WLAN_AUTH_SHARED_KEY; sec.flags |= SEC_AUTH_MODE; @@ -400,7 +396,7 @@ int ieee80211_wx_set_encode(struct ieee80211_device *ieee, /* For now we just support WEP, so only set that security level... * TODO: When WPA is added this is one place that needs to change */ sec.flags |= SEC_LEVEL; - sec.level = SEC_LEVEL_1; /* 40 and 104 bit WEP */ + sec.level = SEC_LEVEL_1; /* 40 and 104 bit WEP */ if (ieee->set_security) ieee->set_security(dev, &sec); -- cgit v1.2.3