From 2e161f78e5f63a7f9fd25a766bb7f816a01eb14a Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Thu, 12 Aug 2010 15:38:38 +0200 Subject: cfg80211/mac80211: extensible frame processing Allow userspace to register for more than just action frames by giving the frame subtype, and make it possible to use this in various modes as well. With some tweaks and some added functionality this will, in the future, also be usable in AP mode and be able to replace the cooked monitor interface currently used in that case. Signed-off-by: Johannes Berg Signed-off-by: John W. Linville --- net/wireless/core.h | 21 +++++++++++---------- 1 file changed, 11 insertions(+), 10 deletions(-) (limited to 'net/wireless/core.h') diff --git a/net/wireless/core.h b/net/wireless/core.h index 63d57ae399c..58ab2c791d2 100644 --- a/net/wireless/core.h +++ b/net/wireless/core.h @@ -331,16 +331,17 @@ void __cfg80211_connect_result(struct net_device *dev, const u8 *bssid, const u8 *resp_ie, size_t resp_ie_len, u16 status, bool wextev, struct cfg80211_bss *bss); -int cfg80211_mlme_register_action(struct wireless_dev *wdev, u32 snd_pid, - const u8 *match_data, int match_len); -void cfg80211_mlme_unregister_actions(struct wireless_dev *wdev, u32 nlpid); -void cfg80211_mlme_purge_actions(struct wireless_dev *wdev); -int cfg80211_mlme_action(struct cfg80211_registered_device *rdev, - struct net_device *dev, - struct ieee80211_channel *chan, - enum nl80211_channel_type channel_type, - bool channel_type_valid, - const u8 *buf, size_t len, u64 *cookie); +int cfg80211_mlme_register_mgmt(struct wireless_dev *wdev, u32 snd_pid, + u16 frame_type, const u8 *match_data, + int match_len); +void cfg80211_mlme_unregister_socket(struct wireless_dev *wdev, u32 nlpid); +void cfg80211_mlme_purge_registrations(struct wireless_dev *wdev); +int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev, + struct net_device *dev, + struct ieee80211_channel *chan, + enum nl80211_channel_type channel_type, + bool channel_type_valid, + const u8 *buf, size_t len, u64 *cookie); /* SME */ int __cfg80211_connect(struct cfg80211_registered_device *rdev, -- cgit v1.2.3-70-g09d2 From 46a5ebaf02d69e26ee0f47a0b8d2d9bc619240d4 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Wed, 15 Sep 2010 13:28:15 +0200 Subject: cfg80211/mac80211: use lockdep_assert_held Instead of using a WARN_ON(!mutex_is_locked()) use lockdep_assert_held() which compiles away completely when lockdep isn't enabled, and also is a more accurate assertion since it checks that the current thread is holding the mutex. Signed-off-by: Johannes Berg Signed-off-by: John W. Linville --- net/mac80211/chan.c | 2 +- net/mac80211/key.c | 2 +- net/mac80211/mlme.c | 2 +- net/mac80211/sta_info.c | 2 +- net/mac80211/util.c | 4 ++-- net/wireless/core.h | 9 ++++++--- net/wireless/reg.c | 6 +++++- 7 files changed, 17 insertions(+), 10 deletions(-) (limited to 'net/wireless/core.h') diff --git a/net/mac80211/chan.c b/net/mac80211/chan.c index 32be11e4c4d..5b24740fc0b 100644 --- a/net/mac80211/chan.c +++ b/net/mac80211/chan.c @@ -11,7 +11,7 @@ __ieee80211_get_channel_mode(struct ieee80211_local *local, { struct ieee80211_sub_if_data *sdata; - WARN_ON(!mutex_is_locked(&local->iflist_mtx)); + lockdep_assert_held(&local->iflist_mtx); list_for_each_entry(sdata, &local->interfaces, list) { if (sdata == ignore) diff --git a/net/mac80211/key.c b/net/mac80211/key.c index 3570f8c2bb4..6a63d1abd14 100644 --- a/net/mac80211/key.c +++ b/net/mac80211/key.c @@ -49,7 +49,7 @@ static const u8 bcast_addr[ETH_ALEN] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }; static void assert_key_lock(struct ieee80211_local *local) { - WARN_ON(!mutex_is_locked(&local->key_mtx)); + lockdep_assert_held(&local->key_mtx); } static struct ieee80211_sta *get_sta_for_key(struct ieee80211_key *key) diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index 0cb822cc12e..bfb0eab5c26 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -92,7 +92,7 @@ enum rx_mgmt_action { /* utils */ static inline void ASSERT_MGD_MTX(struct ieee80211_if_managed *ifmgd) { - WARN_ON(!mutex_is_locked(&ifmgd->mtx)); + lockdep_assert_held(&ifmgd->mtx); } /* diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c index e356ff80671..44e10a9de0a 100644 --- a/net/mac80211/sta_info.c +++ b/net/mac80211/sta_info.c @@ -280,7 +280,7 @@ static int sta_info_finish_insert(struct sta_info *sta, bool async) unsigned long flags; int err = 0; - WARN_ON(!mutex_is_locked(&local->sta_mtx)); + lockdep_assert_held(&local->sta_mtx); /* notify driver */ if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN) diff --git a/net/mac80211/util.c b/net/mac80211/util.c index bd40b11d5ab..9f21a69f091 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -1296,9 +1296,9 @@ void ieee80211_recalc_smps(struct ieee80211_local *local, int count = 0; if (forsdata) - WARN_ON(!mutex_is_locked(&forsdata->u.mgd.mtx)); + lockdep_assert_held(&forsdata->u.mgd.mtx); - WARN_ON(!mutex_is_locked(&local->iflist_mtx)); + lockdep_assert_held(&local->iflist_mtx); /* * This function could be improved to handle multiple diff --git a/net/wireless/core.h b/net/wireless/core.h index 58ab2c791d2..37580e090a3 100644 --- a/net/wireless/core.h +++ b/net/wireless/core.h @@ -95,7 +95,10 @@ extern struct mutex cfg80211_mutex; extern struct list_head cfg80211_rdev_list; extern int cfg80211_rdev_list_generation; -#define assert_cfg80211_lock() WARN_ON(!mutex_is_locked(&cfg80211_mutex)) +static inline void assert_cfg80211_lock(void) +{ + lockdep_assert_held(&cfg80211_mutex); +} /* * You can use this to mark a wiphy_idx as not having an associated wiphy. @@ -202,8 +205,8 @@ static inline void wdev_unlock(struct wireless_dev *wdev) mutex_unlock(&wdev->mtx); } -#define ASSERT_RDEV_LOCK(rdev) WARN_ON(!mutex_is_locked(&(rdev)->mtx)); -#define ASSERT_WDEV_LOCK(wdev) WARN_ON(!mutex_is_locked(&(wdev)->mtx)); +#define ASSERT_RDEV_LOCK(rdev) lockdep_assert_held(&(rdev)->mtx) +#define ASSERT_WDEV_LOCK(wdev) lockdep_assert_held(&(wdev)->mtx) enum cfg80211_event_type { EVENT_CONNECT_RESULT, diff --git a/net/wireless/reg.c b/net/wireless/reg.c index b0d9a08447c..d14bbf960c1 100644 --- a/net/wireless/reg.c +++ b/net/wireless/reg.c @@ -74,7 +74,11 @@ const struct ieee80211_regdomain *cfg80211_regdomain; * - last_request */ static DEFINE_MUTEX(reg_mutex); -#define assert_reg_lock() WARN_ON(!mutex_is_locked(®_mutex)) + +static inline void assert_reg_lock(void) +{ + lockdep_assert_held(®_mutex); +} /* Used to queue up regulatory hints */ static LIST_HEAD(reg_requests_list); -- cgit v1.2.3-70-g09d2 From a02cec2155fbea457eca8881870fd2de1a4c4c76 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Wed, 22 Sep 2010 20:43:57 +0000 Subject: net: return operator cleanup Change "return (EXPR);" to "return EXPR;" return is not a function, parentheses are not required. Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- include/linux/atmdev.h | 2 +- include/linux/etherdevice.h | 4 +-- include/linux/netdevice.h | 2 +- include/linux/skbuff.h | 6 ++--- include/net/bluetooth/hci_core.h | 2 +- include/net/bluetooth/l2cap.h | 2 +- include/net/inet_ecn.h | 2 +- include/net/ip.h | 4 +-- include/net/ipv6.h | 35 +++++++++++++------------- include/net/irda/irlap.h | 2 +- include/net/irda/irlmp.h | 2 +- include/net/irda/irttp.h | 2 +- include/net/sch_generic.h | 2 +- include/net/sctp/sctp.h | 12 ++++----- include/net/sctp/sm.h | 10 ++++---- include/net/sctp/structs.h | 2 +- include/net/sctp/tsnmap.h | 2 +- include/net/tipc/tipc_msg.h | 10 ++++---- net/802/fc.c | 2 +- net/802/fddi.c | 12 ++++----- net/802/hippi.c | 2 +- net/802/tr.c | 2 +- net/8021q/vlan_core.c | 2 +- net/9p/client.c | 4 +-- net/bluetooth/rfcomm/core.c | 4 +-- net/core/flow.c | 4 +-- net/core/neighbour.c | 6 ++--- net/core/utils.c | 2 +- net/dccp/ccids/lib/loss_interval.c | 2 +- net/econet/af_econet.c | 4 +-- net/ethernet/eth.c | 2 +- net/ipv4/arp.c | 2 +- net/ipv4/datagram.c | 2 +- net/ipv4/inet_diag.c | 2 +- net/ipv4/ip_fragment.c | 4 +-- net/ipv4/ip_gre.c | 2 +- net/ipv4/netfilter/arp_tables.c | 2 +- net/ipv4/route.c | 2 +- net/ipv4/tcp_input.c | 10 ++++---- net/ipv4/tcp_minisocks.c | 2 +- net/ipv4/tcp_output.c | 8 +++--- net/ipv4/tcp_westwood.c | 2 +- net/ipv6/addrconf.c | 2 +- net/ipv6/addrlabel.c | 5 ++-- net/ipv6/af_inet6.c | 6 ++--- net/ipv6/exthdrs_core.c | 4 +-- net/ipv6/ip6_output.c | 4 +-- net/ipv6/ndisc.c | 8 +++--- net/ipv6/netfilter/ip6_tables.c | 14 +++++------ net/ipv6/raw.c | 12 ++++----- net/ipv6/route.c | 14 +++++------ net/ipv6/tcp_ipv6.c | 2 +- net/ipv6/xfrm6_policy.c | 2 +- net/irda/af_irda.c | 14 +++++------ net/irda/discovery.c | 2 +- net/irda/ircomm/ircomm_tty.c | 4 +-- net/irda/irlmp.c | 2 +- net/irda/irlmp_frame.c | 2 +- net/irda/irnet/irnet_irda.c | 22 ++++++++--------- net/irda/irnet/irnet_ppp.c | 8 +++--- net/key/af_key.c | 4 +-- net/mac80211/rate.c | 2 +- net/rfkill/input.c | 2 +- net/rose/rose_link.c | 4 +-- net/sctp/protocol.c | 2 +- net/sctp/socket.c | 6 ++--- net/sunrpc/auth_gss/auth_gss.c | 2 +- net/sunrpc/auth_gss/gss_generic_token.c | 44 ++++++++++++++++----------------- net/sunrpc/auth_gss/gss_krb5_seqnum.c | 2 +- net/sunrpc/auth_gss/gss_mech_switch.c | 2 +- net/sunrpc/sched.c | 2 +- net/tipc/addr.c | 2 +- net/tipc/bcast.c | 2 +- net/tipc/bearer.c | 2 +- net/tipc/dbg.c | 4 +-- net/tipc/link.c | 6 ++--- net/tipc/link.h | 16 ++++++------ net/tipc/msg.h | 6 ++--- net/tipc/name_table.c | 2 +- net/tipc/node.c | 6 ++--- net/tipc/port.h | 2 +- net/tipc/socket.c | 2 +- net/tipc/subscr.c | 2 +- net/wireless/core.h | 2 +- 84 files changed, 220 insertions(+), 222 deletions(-) (limited to 'net/wireless/core.h') diff --git a/include/linux/atmdev.h b/include/linux/atmdev.h index f6481daf6e5..a8e4e832cdb 100644 --- a/include/linux/atmdev.h +++ b/include/linux/atmdev.h @@ -449,7 +449,7 @@ void vcc_insert_socket(struct sock *sk); static inline int atm_guess_pdu2truesize(int size) { - return (SKB_DATA_ALIGN(size) + sizeof(struct skb_shared_info)); + return SKB_DATA_ALIGN(size) + sizeof(struct skb_shared_info); } diff --git a/include/linux/etherdevice.h b/include/linux/etherdevice.h index fb6aa607092..f16a01081e1 100644 --- a/include/linux/etherdevice.h +++ b/include/linux/etherdevice.h @@ -71,7 +71,7 @@ static inline int is_zero_ether_addr(const u8 *addr) */ static inline int is_multicast_ether_addr(const u8 *addr) { - return (0x01 & addr[0]); + return 0x01 & addr[0]; } /** @@ -82,7 +82,7 @@ static inline int is_multicast_ether_addr(const u8 *addr) */ static inline int is_local_ether_addr(const u8 *addr) { - return (0x02 & addr[0]); + return 0x02 & addr[0]; } /** diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index f7f1302138a..45dcda5bfda 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -1676,7 +1676,7 @@ static inline void netif_wake_subqueue(struct net_device *dev, u16 queue_index) */ static inline int netif_is_multiqueue(const struct net_device *dev) { - return (dev->num_tx_queues > 1); + return dev->num_tx_queues > 1; } extern void netif_set_real_num_tx_queues(struct net_device *dev, diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 9e8085a8958..b2c41d19735 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -601,7 +601,7 @@ static inline int skb_queue_empty(const struct sk_buff_head *list) static inline bool skb_queue_is_last(const struct sk_buff_head *list, const struct sk_buff *skb) { - return (skb->next == (struct sk_buff *) list); + return skb->next == (struct sk_buff *)list; } /** @@ -614,7 +614,7 @@ static inline bool skb_queue_is_last(const struct sk_buff_head *list, static inline bool skb_queue_is_first(const struct sk_buff_head *list, const struct sk_buff *skb) { - return (skb->prev == (struct sk_buff *) list); + return skb->prev == (struct sk_buff *)list; } /** @@ -2156,7 +2156,7 @@ static inline u16 skb_get_rx_queue(const struct sk_buff *skb) static inline bool skb_rx_queue_recorded(const struct sk_buff *skb) { - return (skb->queue_mapping != 0); + return skb->queue_mapping != 0; } extern u16 skb_tx_hash(const struct net_device *dev, diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h index 4568b938ca3..ebec8c9a929 100644 --- a/include/net/bluetooth/hci_core.h +++ b/include/net/bluetooth/hci_core.h @@ -233,7 +233,7 @@ static inline void inquiry_cache_init(struct hci_dev *hdev) static inline int inquiry_cache_empty(struct hci_dev *hdev) { struct inquiry_cache *c = &hdev->inq_cache; - return (c->list == NULL); + return c->list == NULL; } static inline long inquiry_cache_age(struct hci_dev *hdev) diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h index 6c241444f90..c819c8bf9b6 100644 --- a/include/net/bluetooth/l2cap.h +++ b/include/net/bluetooth/l2cap.h @@ -414,7 +414,7 @@ static inline int l2cap_tx_window_full(struct sock *sk) if (sub < 0) sub += 64; - return (sub == pi->remote_tx_win); + return sub == pi->remote_tx_win; } #define __get_txseq(ctrl) ((ctrl) & L2CAP_CTRL_TXSEQ) >> 1 diff --git a/include/net/inet_ecn.h b/include/net/inet_ecn.h index 9b5d08f4f6e..88bdd010d65 100644 --- a/include/net/inet_ecn.h +++ b/include/net/inet_ecn.h @@ -27,7 +27,7 @@ static inline int INET_ECN_is_not_ect(__u8 dsfield) static inline int INET_ECN_is_capable(__u8 dsfield) { - return (dsfield & INET_ECN_ECT_0); + return dsfield & INET_ECN_ECT_0; } static inline __u8 INET_ECN_encapsulate(__u8 outer, __u8 inner) diff --git a/include/net/ip.h b/include/net/ip.h index 7691aca133d..dbee3fe260e 100644 --- a/include/net/ip.h +++ b/include/net/ip.h @@ -238,9 +238,9 @@ int ip_decrease_ttl(struct iphdr *iph) static inline int ip_dont_fragment(struct sock *sk, struct dst_entry *dst) { - return (inet_sk(sk)->pmtudisc == IP_PMTUDISC_DO || + return inet_sk(sk)->pmtudisc == IP_PMTUDISC_DO || (inet_sk(sk)->pmtudisc == IP_PMTUDISC_WANT && - !(dst_metric_locked(dst, RTAX_MTU)))); + !(dst_metric_locked(dst, RTAX_MTU))); } extern void __ip_select_ident(struct iphdr *iph, struct dst_entry *dst, int more); diff --git a/include/net/ipv6.h b/include/net/ipv6.h index 1f841241099..4a3cd2cd2f5 100644 --- a/include/net/ipv6.h +++ b/include/net/ipv6.h @@ -262,7 +262,7 @@ static inline int ipv6_addr_scope(const struct in6_addr *addr) static inline int __ipv6_addr_src_scope(int type) { - return (type == IPV6_ADDR_ANY ? __IPV6_ADDR_SCOPE_INVALID : (type >> 16)); + return (type == IPV6_ADDR_ANY) ? __IPV6_ADDR_SCOPE_INVALID : (type >> 16); } static inline int ipv6_addr_src_scope(const struct in6_addr *addr) @@ -279,10 +279,10 @@ static inline int ipv6_masked_addr_cmp(const struct in6_addr *a1, const struct in6_addr *m, const struct in6_addr *a2) { - return (!!(((a1->s6_addr32[0] ^ a2->s6_addr32[0]) & m->s6_addr32[0]) | - ((a1->s6_addr32[1] ^ a2->s6_addr32[1]) & m->s6_addr32[1]) | - ((a1->s6_addr32[2] ^ a2->s6_addr32[2]) & m->s6_addr32[2]) | - ((a1->s6_addr32[3] ^ a2->s6_addr32[3]) & m->s6_addr32[3]))); + return !!(((a1->s6_addr32[0] ^ a2->s6_addr32[0]) & m->s6_addr32[0]) | + ((a1->s6_addr32[1] ^ a2->s6_addr32[1]) & m->s6_addr32[1]) | + ((a1->s6_addr32[2] ^ a2->s6_addr32[2]) & m->s6_addr32[2]) | + ((a1->s6_addr32[3] ^ a2->s6_addr32[3]) & m->s6_addr32[3])); } static inline void ipv6_addr_copy(struct in6_addr *a1, const struct in6_addr *a2) @@ -317,10 +317,10 @@ static inline void ipv6_addr_set(struct in6_addr *addr, static inline int ipv6_addr_equal(const struct in6_addr *a1, const struct in6_addr *a2) { - return (((a1->s6_addr32[0] ^ a2->s6_addr32[0]) | - (a1->s6_addr32[1] ^ a2->s6_addr32[1]) | - (a1->s6_addr32[2] ^ a2->s6_addr32[2]) | - (a1->s6_addr32[3] ^ a2->s6_addr32[3])) == 0); + return ((a1->s6_addr32[0] ^ a2->s6_addr32[0]) | + (a1->s6_addr32[1] ^ a2->s6_addr32[1]) | + (a1->s6_addr32[2] ^ a2->s6_addr32[2]) | + (a1->s6_addr32[3] ^ a2->s6_addr32[3])) == 0; } static inline int __ipv6_prefix_equal(const __be32 *a1, const __be32 *a2, @@ -373,20 +373,20 @@ int ip6_frag_match(struct inet_frag_queue *q, void *a); static inline int ipv6_addr_any(const struct in6_addr *a) { - return ((a->s6_addr32[0] | a->s6_addr32[1] | - a->s6_addr32[2] | a->s6_addr32[3] ) == 0); + return (a->s6_addr32[0] | a->s6_addr32[1] | + a->s6_addr32[2] | a->s6_addr32[3]) == 0; } static inline int ipv6_addr_loopback(const struct in6_addr *a) { - return ((a->s6_addr32[0] | a->s6_addr32[1] | - a->s6_addr32[2] | (a->s6_addr32[3] ^ htonl(1))) == 0); + return (a->s6_addr32[0] | a->s6_addr32[1] | + a->s6_addr32[2] | (a->s6_addr32[3] ^ htonl(1))) == 0; } static inline int ipv6_addr_v4mapped(const struct in6_addr *a) { - return ((a->s6_addr32[0] | a->s6_addr32[1] | - (a->s6_addr32[2] ^ htonl(0x0000ffff))) == 0); + return (a->s6_addr32[0] | a->s6_addr32[1] | + (a->s6_addr32[2] ^ htonl(0x0000ffff))) == 0; } /* @@ -395,8 +395,7 @@ static inline int ipv6_addr_v4mapped(const struct in6_addr *a) */ static inline int ipv6_addr_orchid(const struct in6_addr *a) { - return ((a->s6_addr32[0] & htonl(0xfffffff0)) - == htonl(0x20010010)); + return (a->s6_addr32[0] & htonl(0xfffffff0)) == htonl(0x20010010); } static inline void ipv6_addr_set_v4mapped(const __be32 addr, @@ -441,7 +440,7 @@ static inline int __ipv6_addr_diff(const void *token1, const void *token2, int a * if returned value is greater than prefix length. * --ANK (980803) */ - return (addrlen << 5); + return addrlen << 5; } static inline int ipv6_addr_diff(const struct in6_addr *a1, const struct in6_addr *a2) diff --git a/include/net/irda/irlap.h b/include/net/irda/irlap.h index 9d0c78ea92f..17fcd964f9d 100644 --- a/include/net/irda/irlap.h +++ b/include/net/irda/irlap.h @@ -282,7 +282,7 @@ static inline int irlap_is_primary(struct irlap_cb *self) default: ret = -1; } - return(ret); + return ret; } /* Clear a pending IrLAP disconnect. - Jean II */ diff --git a/include/net/irda/irlmp.h b/include/net/irda/irlmp.h index 3ffc1d0f93d..fff11b7fe8a 100644 --- a/include/net/irda/irlmp.h +++ b/include/net/irda/irlmp.h @@ -274,7 +274,7 @@ static inline int irlmp_lap_tx_queue_full(struct lsap_cb *self) if (self->lap->irlap == NULL) return 0; - return(IRLAP_GET_TX_QUEUE_LEN(self->lap->irlap) >= LAP_HIGH_THRESHOLD); + return IRLAP_GET_TX_QUEUE_LEN(self->lap->irlap) >= LAP_HIGH_THRESHOLD; } /* After doing a irlmp_dup(), this get one of the two socket back into diff --git a/include/net/irda/irttp.h b/include/net/irda/irttp.h index 11aee7a2972..af4b87721d1 100644 --- a/include/net/irda/irttp.h +++ b/include/net/irda/irttp.h @@ -204,7 +204,7 @@ static inline int irttp_is_primary(struct tsap_cb *self) (self->lsap->lap == NULL) || (self->lsap->lap->irlap == NULL)) return -2; - return(irlap_is_primary(self->lsap->lap->irlap)); + return irlap_is_primary(self->lsap->lap->irlap); } #endif /* IRTTP_H */ diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h index 3c8728aaab4..eda8808fdac 100644 --- a/include/net/sch_generic.h +++ b/include/net/sch_generic.h @@ -601,7 +601,7 @@ static inline u32 qdisc_l2t(struct qdisc_rate_table* rtab, unsigned int pktlen) slot = 0; slot >>= rtab->rate.cell_log; if (slot > 255) - return (rtab->data[255]*(slot >> 8) + rtab->data[slot & 0xFF]); + return rtab->data[255]*(slot >> 8) + rtab->data[slot & 0xFF]; return rtab->data[slot]; } diff --git a/include/net/sctp/sctp.h b/include/net/sctp/sctp.h index 2cb3980b161..505845ddb0b 100644 --- a/include/net/sctp/sctp.h +++ b/include/net/sctp/sctp.h @@ -405,7 +405,7 @@ static inline void sctp_v6_del_protocol(void) { return; } /* Map an association to an assoc_id. */ static inline sctp_assoc_t sctp_assoc2id(const struct sctp_association *asoc) { - return (asoc?asoc->assoc_id:0); + return asoc ? asoc->assoc_id : 0; } /* Look up the association by its id. */ @@ -473,7 +473,7 @@ static inline void sctp_skb_set_owner_r(struct sk_buff *skb, struct sock *sk) /* Tests if the list has one and only one entry. */ static inline int sctp_list_single_entry(struct list_head *head) { - return ((head->next != head) && (head->next == head->prev)); + return (head->next != head) && (head->next == head->prev); } /* Generate a random jitter in the range of -50% ~ +50% of input RTO. */ @@ -631,13 +631,13 @@ static inline int sctp_sanity_check(void) /* This is the hash function for the SCTP port hash table. */ static inline int sctp_phashfn(__u16 lport) { - return (lport & (sctp_port_hashsize - 1)); + return lport & (sctp_port_hashsize - 1); } /* This is the hash function for the endpoint hash table. */ static inline int sctp_ep_hashfn(__u16 lport) { - return (lport & (sctp_ep_hashsize - 1)); + return lport & (sctp_ep_hashsize - 1); } /* This is the hash function for the association hash table. */ @@ -645,7 +645,7 @@ static inline int sctp_assoc_hashfn(__u16 lport, __u16 rport) { int h = (lport << 16) + rport; h ^= h>>8; - return (h & (sctp_assoc_hashsize - 1)); + return h & (sctp_assoc_hashsize - 1); } /* This is the hash function for the association hash table. This is @@ -656,7 +656,7 @@ static inline int sctp_vtag_hashfn(__u16 lport, __u16 rport, __u32 vtag) { int h = (lport << 16) + rport; h ^= vtag; - return (h & (sctp_assoc_hashsize-1)); + return h & (sctp_assoc_hashsize - 1); } #define sctp_for_each_hentry(epb, node, head) \ diff --git a/include/net/sctp/sm.h b/include/net/sctp/sm.h index 4088c89a905..9352d12f02d 100644 --- a/include/net/sctp/sm.h +++ b/include/net/sctp/sm.h @@ -345,12 +345,12 @@ enum { static inline int TSN_lt(__u32 s, __u32 t) { - return (((s) - (t)) & TSN_SIGN_BIT); + return ((s) - (t)) & TSN_SIGN_BIT; } static inline int TSN_lte(__u32 s, __u32 t) { - return (((s) == (t)) || (((s) - (t)) & TSN_SIGN_BIT)); + return ((s) == (t)) || (((s) - (t)) & TSN_SIGN_BIT); } /* Compare two SSNs */ @@ -369,12 +369,12 @@ enum { static inline int SSN_lt(__u16 s, __u16 t) { - return (((s) - (t)) & SSN_SIGN_BIT); + return ((s) - (t)) & SSN_SIGN_BIT; } static inline int SSN_lte(__u16 s, __u16 t) { - return (((s) == (t)) || (((s) - (t)) & SSN_SIGN_BIT)); + return ((s) == (t)) || (((s) - (t)) & SSN_SIGN_BIT); } /* @@ -388,7 +388,7 @@ enum { static inline int ADDIP_SERIAL_gte(__u16 s, __u16 t) { - return (((s) == (t)) || (((t) - (s)) & ADDIP_SERIAL_SIGN_BIT)); + return ((s) == (t)) || (((t) - (s)) & ADDIP_SERIAL_SIGN_BIT); } /* Check VTAG of the packet matches the sender's own tag. */ diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h index f9e7473613b..69fef4fb79c 100644 --- a/include/net/sctp/structs.h +++ b/include/net/sctp/structs.h @@ -847,7 +847,7 @@ void sctp_packet_free(struct sctp_packet *); static inline int sctp_packet_empty(struct sctp_packet *packet) { - return (packet->size == packet->overhead); + return packet->size == packet->overhead; } /* This represents a remote transport address. diff --git a/include/net/sctp/tsnmap.h b/include/net/sctp/tsnmap.h index 4aabc5a96cf..e7728bc14cc 100644 --- a/include/net/sctp/tsnmap.h +++ b/include/net/sctp/tsnmap.h @@ -157,7 +157,7 @@ __u16 sctp_tsnmap_pending(struct sctp_tsnmap *map); /* Is there a gap in the TSN map? */ static inline int sctp_tsnmap_has_gap(const struct sctp_tsnmap *map) { - return (map->cumulative_tsn_ack_point != map->max_tsn_seen); + return map->cumulative_tsn_ack_point != map->max_tsn_seen; } /* Mark a duplicate TSN. Note: limit the storage of duplicate TSN diff --git a/include/net/tipc/tipc_msg.h b/include/net/tipc/tipc_msg.h index 2e159a812f8..ffe50b4e7b9 100644 --- a/include/net/tipc/tipc_msg.h +++ b/include/net/tipc/tipc_msg.h @@ -107,7 +107,7 @@ static inline u32 msg_hdr_sz(struct tipc_msg *m) static inline int msg_short(struct tipc_msg *m) { - return (msg_hdr_sz(m) == 24); + return msg_hdr_sz(m) == 24; } static inline u32 msg_size(struct tipc_msg *m) @@ -117,7 +117,7 @@ static inline u32 msg_size(struct tipc_msg *m) static inline u32 msg_data_sz(struct tipc_msg *m) { - return (msg_size(m) - msg_hdr_sz(m)); + return msg_size(m) - msg_hdr_sz(m); } static inline unchar *msg_data(struct tipc_msg *m) @@ -132,17 +132,17 @@ static inline u32 msg_type(struct tipc_msg *m) static inline u32 msg_named(struct tipc_msg *m) { - return (msg_type(m) == TIPC_NAMED_MSG); + return msg_type(m) == TIPC_NAMED_MSG; } static inline u32 msg_mcast(struct tipc_msg *m) { - return (msg_type(m) == TIPC_MCAST_MSG); + return msg_type(m) == TIPC_MCAST_MSG; } static inline u32 msg_connected(struct tipc_msg *m) { - return (msg_type(m) == TIPC_CONN_MSG); + return msg_type(m) == TIPC_CONN_MSG; } static inline u32 msg_errcode(struct tipc_msg *m) diff --git a/net/802/fc.c b/net/802/fc.c index 34cf1ee014b..1e49f2d4ea9 100644 --- a/net/802/fc.c +++ b/net/802/fc.c @@ -70,7 +70,7 @@ static int fc_header(struct sk_buff *skb, struct net_device *dev, if(daddr) { memcpy(fch->daddr,daddr,dev->addr_len); - return(hdr_len); + return hdr_len; } return -hdr_len; } diff --git a/net/802/fddi.c b/net/802/fddi.c index 3ef0ab0a543..94b3ad08f39 100644 --- a/net/802/fddi.c +++ b/net/802/fddi.c @@ -82,10 +82,10 @@ static int fddi_header(struct sk_buff *skb, struct net_device *dev, if (daddr != NULL) { memcpy(fddi->daddr, daddr, dev->addr_len); - return(hl); + return hl; } - return(-hl); + return -hl; } @@ -108,7 +108,7 @@ static int fddi_rebuild_header(struct sk_buff *skb) { printk("%s: Don't know how to resolve type %04X addresses.\n", skb->dev->name, ntohs(fddi->hdr.llc_snap.ethertype)); - return(0); + return 0; } } @@ -162,7 +162,7 @@ __be16 fddi_type_trans(struct sk_buff *skb, struct net_device *dev) /* Assume 802.2 SNAP frames, for now */ - return(type); + return type; } EXPORT_SYMBOL(fddi_type_trans); @@ -170,9 +170,9 @@ EXPORT_SYMBOL(fddi_type_trans); int fddi_change_mtu(struct net_device *dev, int new_mtu) { if ((new_mtu < FDDI_K_SNAP_HLEN) || (new_mtu > FDDI_K_SNAP_DLEN)) - return(-EINVAL); + return -EINVAL; dev->mtu = new_mtu; - return(0); + return 0; } EXPORT_SYMBOL(fddi_change_mtu); diff --git a/net/802/hippi.c b/net/802/hippi.c index cd3e8e92952..91aca8780fd 100644 --- a/net/802/hippi.c +++ b/net/802/hippi.c @@ -152,7 +152,7 @@ int hippi_change_mtu(struct net_device *dev, int new_mtu) if ((new_mtu < 68) || (new_mtu > 65280)) return -EINVAL; dev->mtu = new_mtu; - return(0); + return 0; } EXPORT_SYMBOL(hippi_change_mtu); diff --git a/net/802/tr.c b/net/802/tr.c index 1c6e596074d..5e20cf8a074 100644 --- a/net/802/tr.c +++ b/net/802/tr.c @@ -145,7 +145,7 @@ static int tr_header(struct sk_buff *skb, struct net_device *dev, { memcpy(trh->daddr,daddr,dev->addr_len); tr_source_route(skb, trh, dev); - return(hdr_len); + return hdr_len; } return -hdr_len; diff --git a/net/8021q/vlan_core.c b/net/8021q/vlan_core.c index 889f4ac4459..0eb486d342d 100644 --- a/net/8021q/vlan_core.c +++ b/net/8021q/vlan_core.c @@ -27,7 +27,7 @@ int __vlan_hwaccel_rx(struct sk_buff *skb, struct vlan_group *grp, else if (vlan_id) goto drop; - return (polling ? netif_receive_skb(skb) : netif_rx(skb)); + return polling ? netif_receive_skb(skb) : netif_rx(skb); drop: dev_kfree_skb_any(skb); diff --git a/net/9p/client.c b/net/9p/client.c index dc6f2f26d02..f34b9f51081 100644 --- a/net/9p/client.c +++ b/net/9p/client.c @@ -61,13 +61,13 @@ static const match_table_t tokens = { inline int p9_is_proto_dotl(struct p9_client *clnt) { - return (clnt->proto_version == p9_proto_2000L); + return clnt->proto_version == p9_proto_2000L; } EXPORT_SYMBOL(p9_is_proto_dotl); inline int p9_is_proto_dotu(struct p9_client *clnt) { - return (clnt->proto_version == p9_proto_2000u); + return clnt->proto_version == p9_proto_2000u; } EXPORT_SYMBOL(p9_is_proto_dotu); diff --git a/net/bluetooth/rfcomm/core.c b/net/bluetooth/rfcomm/core.c index 7dca91bb8c5..15ea84ba344 100644 --- a/net/bluetooth/rfcomm/core.c +++ b/net/bluetooth/rfcomm/core.c @@ -179,13 +179,13 @@ static unsigned char rfcomm_crc_table[256] = { /* FCS on 2 bytes */ static inline u8 __fcs(u8 *data) { - return (0xff - __crc(data)); + return 0xff - __crc(data); } /* FCS on 3 bytes */ static inline u8 __fcs2(u8 *data) { - return (0xff - rfcomm_crc_table[__crc(data) ^ data[2]]); + return 0xff - rfcomm_crc_table[__crc(data) ^ data[2]]; } /* Check FCS */ diff --git a/net/core/flow.c b/net/core/flow.c index b143b86b1f2..127c8a7ffd6 100644 --- a/net/core/flow.c +++ b/net/core/flow.c @@ -176,8 +176,8 @@ static u32 flow_hash_code(struct flow_cache *fc, { u32 *k = (u32 *) key; - return (jhash2(k, (sizeof(*key) / sizeof(u32)), fcp->hash_rnd) - & (flow_cache_hash_size(fc) - 1)); + return jhash2(k, (sizeof(*key) / sizeof(u32)), fcp->hash_rnd) + & (flow_cache_hash_size(fc) - 1); } typedef unsigned long flow_compare_t; diff --git a/net/core/neighbour.c b/net/core/neighbour.c index a4e0a7482c2..96b1a749abb 100644 --- a/net/core/neighbour.c +++ b/net/core/neighbour.c @@ -122,7 +122,7 @@ static void neigh_cleanup_and_release(struct neighbour *neigh) unsigned long neigh_rand_reach_time(unsigned long base) { - return (base ? (net_random() % base) + (base >> 1) : 0); + return base ? (net_random() % base) + (base >> 1) : 0; } EXPORT_SYMBOL(neigh_rand_reach_time); @@ -766,9 +766,9 @@ next_elt: static __inline__ int neigh_max_probes(struct neighbour *n) { struct neigh_parms *p = n->parms; - return (n->nud_state & NUD_PROBE ? + return (n->nud_state & NUD_PROBE) ? p->ucast_probes : - p->ucast_probes + p->app_probes + p->mcast_probes); + p->ucast_probes + p->app_probes + p->mcast_probes; } static void neigh_invalidate(struct neighbour *neigh) diff --git a/net/core/utils.c b/net/core/utils.c index ec6bb322f37..5fea0ab2190 100644 --- a/net/core/utils.c +++ b/net/core/utils.c @@ -75,7 +75,7 @@ __be32 in_aton(const char *str) str++; } } - return(htonl(l)); + return htonl(l); } EXPORT_SYMBOL(in_aton); diff --git a/net/dccp/ccids/lib/loss_interval.c b/net/dccp/ccids/lib/loss_interval.c index 8fc3cbf7907..497723c4d4b 100644 --- a/net/dccp/ccids/lib/loss_interval.c +++ b/net/dccp/ccids/lib/loss_interval.c @@ -116,7 +116,7 @@ u8 tfrc_lh_update_i_mean(struct tfrc_loss_hist *lh, struct sk_buff *skb) cur->li_length = len; tfrc_lh_calc_i_mean(lh); - return (lh->i_mean < old_i_mean); + return lh->i_mean < old_i_mean; } /* Determine if `new_loss' does begin a new loss interval [RFC 4342, 10.2] */ diff --git a/net/econet/af_econet.c b/net/econet/af_econet.c index baa98fb8355..f8c1ae4b41f 100644 --- a/net/econet/af_econet.c +++ b/net/econet/af_econet.c @@ -392,7 +392,7 @@ static int econet_sendmsg(struct kiocb *iocb, struct socket *sock, dev_queue_xmit(skb); dev_put(dev); mutex_unlock(&econet_mutex); - return(len); + return len; out_free: kfree_skb(skb); @@ -637,7 +637,7 @@ static int econet_create(struct net *net, struct socket *sock, int protocol, eo->num = protocol; econet_insert_socket(&econet_sklist, sk); - return(0); + return 0; out: return err; } diff --git a/net/ethernet/eth.c b/net/ethernet/eth.c index 85e7b455132..f00ef2f1d81 100644 --- a/net/ethernet/eth.c +++ b/net/ethernet/eth.c @@ -387,6 +387,6 @@ ssize_t sysfs_format_mac(char *buf, const unsigned char *addr, int len) l = _format_mac_addr(buf, PAGE_SIZE, addr, len); l += scnprintf(buf + l, PAGE_SIZE - l, "\n"); - return ((ssize_t) l); + return (ssize_t)l; } EXPORT_SYMBOL(sysfs_format_mac); diff --git a/net/ipv4/arp.c b/net/ipv4/arp.c index dcfe7e961c1..4083c186fd3 100644 --- a/net/ipv4/arp.c +++ b/net/ipv4/arp.c @@ -567,7 +567,7 @@ static inline int arp_fwd_proxy(struct in_device *in_dev, if (out_dev) omi = IN_DEV_MEDIUM_ID(out_dev); - return (omi != imi && omi != -1); + return omi != imi && omi != -1; } /* diff --git a/net/ipv4/datagram.c b/net/ipv4/datagram.c index 721a8a37b45..174be6caa5c 100644 --- a/net/ipv4/datagram.c +++ b/net/ipv4/datagram.c @@ -73,6 +73,6 @@ int ip4_datagram_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len) inet->inet_id = jiffies; sk_dst_set(sk, &rt->dst); - return(0); + return 0; } EXPORT_SYMBOL(ip4_datagram_connect); diff --git a/net/ipv4/inet_diag.c b/net/ipv4/inet_diag.c index e5fa2ddce32..ba804266584 100644 --- a/net/ipv4/inet_diag.c +++ b/net/ipv4/inet_diag.c @@ -425,7 +425,7 @@ static int inet_diag_bc_run(const void *bc, int len, bc += op->no; } } - return (len == 0); + return len == 0; } static int valid_cc(const void *bc, int len, int cc) diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c index f4dc879e258..168440834ad 100644 --- a/net/ipv4/ip_fragment.c +++ b/net/ipv4/ip_fragment.c @@ -116,11 +116,11 @@ static int ip4_frag_match(struct inet_frag_queue *q, void *a) struct ip4_create_arg *arg = a; qp = container_of(q, struct ipq, q); - return (qp->id == arg->iph->id && + return qp->id == arg->iph->id && qp->saddr == arg->iph->saddr && qp->daddr == arg->iph->daddr && qp->protocol == arg->iph->protocol && - qp->user == arg->user); + qp->user == arg->user; } /* Memory Tracking Functions. */ diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c index 714b6a80361..0967d02fefd 100644 --- a/net/ipv4/ip_gre.c +++ b/net/ipv4/ip_gre.c @@ -659,7 +659,7 @@ drop: rcu_read_unlock(); drop_nolock: kfree_skb(skb); - return(0); + return 0; } static netdev_tx_t ipgre_tunnel_xmit(struct sk_buff *skb, struct net_device *dev) diff --git a/net/ipv4/netfilter/arp_tables.c b/net/ipv4/netfilter/arp_tables.c index e8f4f9a57f1..8b642f15246 100644 --- a/net/ipv4/netfilter/arp_tables.c +++ b/net/ipv4/netfilter/arp_tables.c @@ -72,7 +72,7 @@ static inline int arp_devaddr_compare(const struct arpt_devaddr_info *ap, for (i = 0; i < len; i++) ret |= (hdr_addr[i] ^ ap->addr[i]) & ap->mask[i]; - return (ret != 0); + return ret != 0; } /* diff --git a/net/ipv4/route.c b/net/ipv4/route.c index e24d48dd99d..ae1d4a41f1c 100644 --- a/net/ipv4/route.c +++ b/net/ipv4/route.c @@ -2791,7 +2791,7 @@ static int ipv4_dst_blackhole(struct net *net, struct rtable **rp, struct flowi dst_release(&(*rp)->dst); *rp = rt; - return (rt ? 0 : -ENOMEM); + return rt ? 0 : -ENOMEM; } int ip_route_output_flow(struct net *net, struct rtable **rp, struct flowi *flp, diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index 1bc87a05c73..51966b3f971 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -2301,7 +2301,7 @@ static inline int tcp_dupack_heuristics(struct tcp_sock *tp) static inline int tcp_skb_timedout(struct sock *sk, struct sk_buff *skb) { - return (tcp_time_stamp - TCP_SKB_CB(skb)->when > inet_csk(sk)->icsk_rto); + return tcp_time_stamp - TCP_SKB_CB(skb)->when > inet_csk(sk)->icsk_rto; } static inline int tcp_head_timedout(struct sock *sk) @@ -3398,8 +3398,8 @@ static void tcp_ack_probe(struct sock *sk) static inline int tcp_ack_is_dubious(const struct sock *sk, const int flag) { - return (!(flag & FLAG_NOT_DUP) || (flag & FLAG_CA_ALERT) || - inet_csk(sk)->icsk_ca_state != TCP_CA_Open); + return !(flag & FLAG_NOT_DUP) || (flag & FLAG_CA_ALERT) || + inet_csk(sk)->icsk_ca_state != TCP_CA_Open; } static inline int tcp_may_raise_cwnd(const struct sock *sk, const int flag) @@ -3416,9 +3416,9 @@ static inline int tcp_may_update_window(const struct tcp_sock *tp, const u32 ack, const u32 ack_seq, const u32 nwin) { - return (after(ack, tp->snd_una) || + return after(ack, tp->snd_una) || after(ack_seq, tp->snd_wl1) || - (ack_seq == tp->snd_wl1 && nwin > tp->snd_wnd)); + (ack_seq == tp->snd_wl1 && nwin > tp->snd_wnd); } /* Update our send window. diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c index f25b56cb85c..43cf901d765 100644 --- a/net/ipv4/tcp_minisocks.c +++ b/net/ipv4/tcp_minisocks.c @@ -55,7 +55,7 @@ static __inline__ int tcp_in_window(u32 seq, u32 end_seq, u32 s_win, u32 e_win) return 1; if (after(end_seq, s_win) && before(seq, e_win)) return 1; - return (seq == e_win && seq == end_seq); + return seq == e_win && seq == end_seq; } /* diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index ea09d2fd50c..05b1ecf3676 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -1370,9 +1370,9 @@ static inline int tcp_nagle_check(const struct tcp_sock *tp, const struct sk_buff *skb, unsigned mss_now, int nonagle) { - return (skb->len < mss_now && + return skb->len < mss_now && ((nonagle & TCP_NAGLE_CORK) || - (!nonagle && tp->packets_out && tcp_minshall_check(tp)))); + (!nonagle && tp->packets_out && tcp_minshall_check(tp))); } /* Return non-zero if the Nagle test allows this packet to be @@ -1443,10 +1443,10 @@ int tcp_may_send_now(struct sock *sk) struct tcp_sock *tp = tcp_sk(sk); struct sk_buff *skb = tcp_send_head(sk); - return (skb && + return skb && tcp_snd_test(sk, skb, tcp_current_mss(sk), (tcp_skb_is_last(sk, skb) ? - tp->nonagle : TCP_NAGLE_PUSH))); + tp->nonagle : TCP_NAGLE_PUSH)); } /* Trim TSO SKB to LEN bytes, put the remaining data into a new packet diff --git a/net/ipv4/tcp_westwood.c b/net/ipv4/tcp_westwood.c index 20151d6a624..a534dda5456 100644 --- a/net/ipv4/tcp_westwood.c +++ b/net/ipv4/tcp_westwood.c @@ -80,7 +80,7 @@ static void tcp_westwood_init(struct sock *sk) */ static inline u32 westwood_do_filter(u32 a, u32 b) { - return (((7 * a) + b) >> 3); + return ((7 * a) + b) >> 3; } static void westwood_filter(struct westwood *w, u32 delta) diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index 5bc893e2800..89aa54394a0 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -243,7 +243,7 @@ static inline bool addrconf_qdisc_ok(const struct net_device *dev) /* Check if a route is valid prefix route */ static inline int addrconf_is_prefix_route(const struct rt6_info *rt) { - return ((rt->rt6i_flags & (RTF_GATEWAY | RTF_DEFAULT)) == 0); + return (rt->rt6i_flags & (RTF_GATEWAY | RTF_DEFAULT)) == 0; } static void addrconf_del_timer(struct inet6_ifaddr *ifp) diff --git a/net/ipv6/addrlabel.c b/net/ipv6/addrlabel.c index f0e774cea38..921dcf6c271 100644 --- a/net/ipv6/addrlabel.c +++ b/net/ipv6/addrlabel.c @@ -513,10 +513,9 @@ static int ip6addrlbl_dump(struct sk_buff *skb, struct netlink_callback *cb) static inline int ip6addrlbl_msgsize(void) { - return (NLMSG_ALIGN(sizeof(struct ifaddrlblmsg)) + return NLMSG_ALIGN(sizeof(struct ifaddrlblmsg)) + nla_total_size(16) /* IFAL_ADDRESS */ - + nla_total_size(4) /* IFAL_LABEL */ - ); + + nla_total_size(4); /* IFAL_LABEL */ } static int ip6addrlbl_get(struct sk_buff *in_skb, struct nlmsghdr* nlh, diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c index 56b9bf2516f..60220985bb8 100644 --- a/net/ipv6/af_inet6.c +++ b/net/ipv6/af_inet6.c @@ -467,7 +467,7 @@ int inet6_getname(struct socket *sock, struct sockaddr *uaddr, if (ipv6_addr_type(&sin->sin6_addr) & IPV6_ADDR_LINKLOCAL) sin->sin6_scope_id = sk->sk_bound_dev_if; *uaddr_len = sizeof(*sin); - return(0); + return 0; } EXPORT_SYMBOL(inet6_getname); @@ -488,7 +488,7 @@ int inet6_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) case SIOCADDRT: case SIOCDELRT: - return(ipv6_route_ioctl(net, cmd, (void __user *)arg)); + return ipv6_route_ioctl(net, cmd, (void __user *)arg); case SIOCSIFADDR: return addrconf_add_ifaddr(net, (void __user *) arg); @@ -502,7 +502,7 @@ int inet6_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) return sk->sk_prot->ioctl(sk, cmd, arg); } /*NOTREACHED*/ - return(0); + return 0; } EXPORT_SYMBOL(inet6_ioctl); diff --git a/net/ipv6/exthdrs_core.c b/net/ipv6/exthdrs_core.c index e1caa5d526c..14ed0a955b5 100644 --- a/net/ipv6/exthdrs_core.c +++ b/net/ipv6/exthdrs_core.c @@ -13,12 +13,12 @@ int ipv6_ext_hdr(u8 nexthdr) /* * find out if nexthdr is an extension header or a protocol */ - return ( (nexthdr == NEXTHDR_HOP) || + return (nexthdr == NEXTHDR_HOP) || (nexthdr == NEXTHDR_ROUTING) || (nexthdr == NEXTHDR_FRAGMENT) || (nexthdr == NEXTHDR_AUTH) || (nexthdr == NEXTHDR_NONE) || - (nexthdr == NEXTHDR_DEST) ); + (nexthdr == NEXTHDR_DEST); } /* diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c index 1838927a224..efbbbce68f9 100644 --- a/net/ipv6/ip6_output.c +++ b/net/ipv6/ip6_output.c @@ -870,8 +870,8 @@ static inline int ip6_rt_check(struct rt6key *rt_key, struct in6_addr *fl_addr, struct in6_addr *addr_cache) { - return ((rt_key->plen != 128 || !ipv6_addr_equal(fl_addr, &rt_key->addr)) && - (addr_cache == NULL || !ipv6_addr_equal(fl_addr, addr_cache))); + return (rt_key->plen != 128 || !ipv6_addr_equal(fl_addr, &rt_key->addr)) && + (addr_cache == NULL || !ipv6_addr_equal(fl_addr, addr_cache)); } static struct dst_entry *ip6_sk_dst_check(struct sock *sk, diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c index 69a0051cea6..b3dd844cd34 100644 --- a/net/ipv6/ndisc.c +++ b/net/ipv6/ndisc.c @@ -228,12 +228,12 @@ static struct nd_opt_hdr *ndisc_next_option(struct nd_opt_hdr *cur, do { cur = ((void *)cur) + (cur->nd_opt_len << 3); } while(cur < end && cur->nd_opt_type != type); - return (cur <= end && cur->nd_opt_type == type ? cur : NULL); + return cur <= end && cur->nd_opt_type == type ? cur : NULL; } static inline int ndisc_is_useropt(struct nd_opt_hdr *opt) { - return (opt->nd_opt_type == ND_OPT_RDNSS); + return opt->nd_opt_type == ND_OPT_RDNSS; } static struct nd_opt_hdr *ndisc_next_useropt(struct nd_opt_hdr *cur, @@ -244,7 +244,7 @@ static struct nd_opt_hdr *ndisc_next_useropt(struct nd_opt_hdr *cur, do { cur = ((void *)cur) + (cur->nd_opt_len << 3); } while(cur < end && !ndisc_is_useropt(cur)); - return (cur <= end && ndisc_is_useropt(cur) ? cur : NULL); + return cur <= end && ndisc_is_useropt(cur) ? cur : NULL; } static struct ndisc_options *ndisc_parse_options(u8 *opt, int opt_len, @@ -319,7 +319,7 @@ static inline u8 *ndisc_opt_addr_data(struct nd_opt_hdr *p, int prepad = ndisc_addr_option_pad(dev->type); if (lladdrlen != NDISC_OPT_SPACE(dev->addr_len + prepad)) return NULL; - return (lladdr + prepad); + return lladdr + prepad; } int ndisc_mc_map(struct in6_addr *addr, char *buf, struct net_device *dev, int dir) diff --git a/net/ipv6/netfilter/ip6_tables.c b/net/ipv6/netfilter/ip6_tables.c index 8e754be92c2..6b331e9b570 100644 --- a/net/ipv6/netfilter/ip6_tables.c +++ b/net/ipv6/netfilter/ip6_tables.c @@ -82,13 +82,13 @@ EXPORT_SYMBOL_GPL(ip6t_alloc_initial_table); int ip6t_ext_hdr(u8 nexthdr) { - return ( (nexthdr == IPPROTO_HOPOPTS) || - (nexthdr == IPPROTO_ROUTING) || - (nexthdr == IPPROTO_FRAGMENT) || - (nexthdr == IPPROTO_ESP) || - (nexthdr == IPPROTO_AH) || - (nexthdr == IPPROTO_NONE) || - (nexthdr == IPPROTO_DSTOPTS) ); + return (nexthdr == IPPROTO_HOPOPTS) || + (nexthdr == IPPROTO_ROUTING) || + (nexthdr == IPPROTO_FRAGMENT) || + (nexthdr == IPPROTO_ESP) || + (nexthdr == IPPROTO_AH) || + (nexthdr == IPPROTO_NONE) || + (nexthdr == IPPROTO_DSTOPTS); } /* Returns whether matches rule or not. */ diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c index e677937a07f..45e6efb7f17 100644 --- a/net/ipv6/raw.c +++ b/net/ipv6/raw.c @@ -764,7 +764,7 @@ static int rawv6_sendmsg(struct kiocb *iocb, struct sock *sk, return -EINVAL; if (sin6->sin6_family && sin6->sin6_family != AF_INET6) - return(-EAFNOSUPPORT); + return -EAFNOSUPPORT; /* port is the proto value [0..255] carried in nexthdr */ proto = ntohs(sin6->sin6_port); @@ -772,10 +772,10 @@ static int rawv6_sendmsg(struct kiocb *iocb, struct sock *sk, if (!proto) proto = inet->inet_num; else if (proto != inet->inet_num) - return(-EINVAL); + return -EINVAL; if (proto > 255) - return(-EINVAL); + return -EINVAL; daddr = &sin6->sin6_addr; if (np->sndflow) { @@ -985,7 +985,7 @@ static int do_rawv6_setsockopt(struct sock *sk, int level, int optname, /* You may get strange result with a positive odd offset; RFC2292bis agrees with me. */ if (val > 0 && (val&1)) - return(-EINVAL); + return -EINVAL; if (val < 0) { rp->checksum = 0; } else { @@ -997,7 +997,7 @@ static int do_rawv6_setsockopt(struct sock *sk, int level, int optname, break; default: - return(-ENOPROTOOPT); + return -ENOPROTOOPT; } } @@ -1190,7 +1190,7 @@ static int rawv6_init_sk(struct sock *sk) default: break; } - return(0); + return 0; } struct proto rawv6_prot = { diff --git a/net/ipv6/route.c b/net/ipv6/route.c index d126365ac04..25b0beda433 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -217,14 +217,14 @@ static void ip6_dst_ifdown(struct dst_entry *dst, struct net_device *dev, static __inline__ int rt6_check_expired(const struct rt6_info *rt) { - return (rt->rt6i_flags & RTF_EXPIRES && - time_after(jiffies, rt->rt6i_expires)); + return (rt->rt6i_flags & RTF_EXPIRES) && + time_after(jiffies, rt->rt6i_expires); } static inline int rt6_need_strict(struct in6_addr *daddr) { - return (ipv6_addr_type(daddr) & - (IPV6_ADDR_MULTICAST | IPV6_ADDR_LINKLOCAL | IPV6_ADDR_LOOPBACK)); + return ipv6_addr_type(daddr) & + (IPV6_ADDR_MULTICAST | IPV6_ADDR_LINKLOCAL | IPV6_ADDR_LOOPBACK); } /* @@ -440,7 +440,7 @@ static struct rt6_info *rt6_select(struct fib6_node *fn, int oif, int strict) __func__, match); net = dev_net(rt0->rt6i_dev); - return (match ? match : net->ipv6.ip6_null_entry); + return match ? match : net->ipv6.ip6_null_entry; } #ifdef CONFIG_IPV6_ROUTE_INFO @@ -859,7 +859,7 @@ int ip6_dst_blackhole(struct sock *sk, struct dst_entry **dstp, struct flowi *fl dst_release(*dstp); *dstp = new; - return (new ? 0 : -ENOMEM); + return new ? 0 : -ENOMEM; } EXPORT_SYMBOL_GPL(ip6_dst_blackhole); @@ -1070,7 +1070,7 @@ static int ip6_dst_gc(struct dst_ops *ops) net->ipv6.ip6_rt_gc_expire = rt_gc_timeout>>1; out: net->ipv6.ip6_rt_gc_expire -= net->ipv6.ip6_rt_gc_expire>>rt_elasticity; - return (atomic_read(&ops->entries) > rt_max_size); + return atomic_read(&ops->entries) > rt_max_size; } /* Clean host part of a prefix. Not necessary in radix tree, diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c index fe6d40418c0..8d93f6d8197 100644 --- a/net/ipv6/tcp_ipv6.c +++ b/net/ipv6/tcp_ipv6.c @@ -139,7 +139,7 @@ static int tcp_v6_connect(struct sock *sk, struct sockaddr *uaddr, return -EINVAL; if (usin->sin6_family != AF_INET6) - return(-EAFNOSUPPORT); + return -EAFNOSUPPORT; memset(&fl, 0, sizeof(fl)); diff --git a/net/ipv6/xfrm6_policy.c b/net/ipv6/xfrm6_policy.c index 6baeabbbca8..39676eac3a3 100644 --- a/net/ipv6/xfrm6_policy.c +++ b/net/ipv6/xfrm6_policy.c @@ -199,7 +199,7 @@ static inline int xfrm6_garbage_collect(struct dst_ops *ops) struct net *net = container_of(ops, struct net, xfrm.xfrm6_dst_ops); xfrm6_policy_afinfo.garbage_collect(net); - return (atomic_read(&ops->entries) > ops->gc_thresh * 2); + return atomic_read(&ops->entries) > ops->gc_thresh * 2; } static void xfrm6_update_pmtu(struct dst_entry *dst, u32 mtu) diff --git a/net/irda/af_irda.c b/net/irda/af_irda.c index fd55b5135de..bf3635129b1 100644 --- a/net/irda/af_irda.c +++ b/net/irda/af_irda.c @@ -573,9 +573,9 @@ static int irda_find_lsap_sel(struct irda_sock *self, char *name) /* Requested object/attribute doesn't exist */ if((self->errno == IAS_CLASS_UNKNOWN) || (self->errno == IAS_ATTRIB_UNKNOWN)) - return (-EADDRNOTAVAIL); + return -EADDRNOTAVAIL; else - return (-EHOSTUNREACH); + return -EHOSTUNREACH; } /* Get the remote TSAP selector */ @@ -663,7 +663,7 @@ static int irda_discover_daddr_and_lsap_sel(struct irda_sock *self, char *name) __func__, name); self->daddr = DEV_ADDR_ANY; kfree(discoveries); - return(-ENOTUNIQ); + return -ENOTUNIQ; } /* First time we found that one, save it ! */ daddr = self->daddr; @@ -677,7 +677,7 @@ static int irda_discover_daddr_and_lsap_sel(struct irda_sock *self, char *name) IRDA_DEBUG(0, "%s(), unexpected IAS query failure\n", __func__); self->daddr = DEV_ADDR_ANY; kfree(discoveries); - return(-EHOSTUNREACH); + return -EHOSTUNREACH; break; } } @@ -689,7 +689,7 @@ static int irda_discover_daddr_and_lsap_sel(struct irda_sock *self, char *name) IRDA_DEBUG(1, "%s(), cannot discover service ''%s'' in any device !!!\n", __func__, name); self->daddr = DEV_ADDR_ANY; - return(-EADDRNOTAVAIL); + return -EADDRNOTAVAIL; } /* Revert back to discovered device & service */ @@ -2465,9 +2465,9 @@ bed: /* Requested object/attribute doesn't exist */ if((self->errno == IAS_CLASS_UNKNOWN) || (self->errno == IAS_ATTRIB_UNKNOWN)) - return (-EADDRNOTAVAIL); + return -EADDRNOTAVAIL; else - return (-EHOSTUNREACH); + return -EHOSTUNREACH; } /* Translate from internal to user structure */ diff --git a/net/irda/discovery.c b/net/irda/discovery.c index c1c8ae93912..36c3f037f17 100644 --- a/net/irda/discovery.c +++ b/net/irda/discovery.c @@ -315,7 +315,7 @@ struct irda_device_info *irlmp_copy_discoveries(hashbin_t *log, int *pn, /* Get the actual number of device in the buffer and return */ *pn = i; - return(buffer); + return buffer; } #ifdef CONFIG_PROC_FS diff --git a/net/irda/ircomm/ircomm_tty.c b/net/irda/ircomm/ircomm_tty.c index faa82ca2dfd..a39cca8331d 100644 --- a/net/irda/ircomm/ircomm_tty.c +++ b/net/irda/ircomm/ircomm_tty.c @@ -449,8 +449,8 @@ static int ircomm_tty_open(struct tty_struct *tty, struct file *filp) } #ifdef SERIAL_DO_RESTART - return ((self->flags & ASYNC_HUP_NOTIFY) ? - -EAGAIN : -ERESTARTSYS); + return (self->flags & ASYNC_HUP_NOTIFY) ? + -EAGAIN : -ERESTARTSYS; #else return -EAGAIN; #endif diff --git a/net/irda/irlmp.c b/net/irda/irlmp.c index 0e7d8bde145..6115a44c0a2 100644 --- a/net/irda/irlmp.c +++ b/net/irda/irlmp.c @@ -939,7 +939,7 @@ struct irda_device_info *irlmp_get_discoveries(int *pn, __u16 mask, int nslots) } /* Return current cached discovery log */ - return(irlmp_copy_discoveries(irlmp->cachelog, pn, mask, TRUE)); + return irlmp_copy_discoveries(irlmp->cachelog, pn, mask, TRUE); } EXPORT_SYMBOL(irlmp_get_discoveries); diff --git a/net/irda/irlmp_frame.c b/net/irda/irlmp_frame.c index 3750884094d..062e63b1c5c 100644 --- a/net/irda/irlmp_frame.c +++ b/net/irda/irlmp_frame.c @@ -448,7 +448,7 @@ static struct lsap_cb *irlmp_find_lsap(struct lap_cb *self, __u8 dlsap_sel, (self->cache.slsap_sel == slsap_sel) && (self->cache.dlsap_sel == dlsap_sel)) { - return (self->cache.lsap); + return self->cache.lsap; } #endif diff --git a/net/irda/irnet/irnet_irda.c b/net/irda/irnet/irnet_irda.c index e98e40d76f4..7f17a8020e8 100644 --- a/net/irda/irnet/irnet_irda.c +++ b/net/irda/irnet/irnet_irda.c @@ -238,7 +238,7 @@ irnet_ias_to_tsap(irnet_socket * self, DEXIT(IRDA_SR_TRACE, "\n"); /* Return the TSAP */ - return(dtsap_sel); + return dtsap_sel; } /*------------------------------------------------------------------*/ @@ -301,7 +301,7 @@ irnet_connect_tsap(irnet_socket * self) { clear_bit(0, &self->ttp_connect); DERROR(IRDA_SR_ERROR, "connect aborted!\n"); - return(err); + return err; } /* Connect to remote device */ @@ -312,7 +312,7 @@ irnet_connect_tsap(irnet_socket * self) { clear_bit(0, &self->ttp_connect); DERROR(IRDA_SR_ERROR, "connect aborted!\n"); - return(err); + return err; } /* The above call is non-blocking. @@ -321,7 +321,7 @@ irnet_connect_tsap(irnet_socket * self) * See you there ;-) */ DEXIT(IRDA_SR_TRACE, "\n"); - return(err); + return err; } /*------------------------------------------------------------------*/ @@ -362,10 +362,10 @@ irnet_discover_next_daddr(irnet_socket * self) /* The above request is non-blocking. * After a while, IrDA will call us back in irnet_discovervalue_confirm() * We will then call irnet_ias_to_tsap() and come back here again... */ - return(0); + return 0; } else - return(1); + return 1; } /*------------------------------------------------------------------*/ @@ -436,7 +436,7 @@ irnet_discover_daddr_and_lsap_sel(irnet_socket * self) /* Follow me in irnet_discovervalue_confirm() */ DEXIT(IRDA_SR_TRACE, "\n"); - return(0); + return 0; } /*------------------------------------------------------------------*/ @@ -485,7 +485,7 @@ irnet_dname_to_daddr(irnet_socket * self) /* No luck ! */ DEBUG(IRDA_SR_INFO, "cannot discover device ``%s'' !!!\n", self->rname); kfree(discoveries); - return(-EADDRNOTAVAIL); + return -EADDRNOTAVAIL; } @@ -527,7 +527,7 @@ irda_irnet_create(irnet_socket * self) INIT_WORK(&self->disconnect_work, irnet_ppp_disconnect); DEXIT(IRDA_SOCK_TRACE, "\n"); - return(0); + return 0; } /*------------------------------------------------------------------*/ @@ -601,7 +601,7 @@ irda_irnet_connect(irnet_socket * self) * We will finish the connection procedure in irnet_connect_tsap(). */ DEXIT(IRDA_SOCK_TRACE, "\n"); - return(0); + return 0; } /*------------------------------------------------------------------*/ @@ -733,7 +733,7 @@ irnet_daddr_to_dname(irnet_socket * self) /* No luck ! */ DEXIT(IRDA_SERV_INFO, ": cannot discover device 0x%08x !!!\n", self->daddr); kfree(discoveries); - return(-EADDRNOTAVAIL); + return -EADDRNOTAVAIL; } /*------------------------------------------------------------------*/ diff --git a/net/irda/irnet/irnet_ppp.c b/net/irda/irnet/irnet_ppp.c index dfe7b38dd4a..69f1fa64994 100644 --- a/net/irda/irnet/irnet_ppp.c +++ b/net/irda/irnet/irnet_ppp.c @@ -166,7 +166,7 @@ irnet_ctrl_write(irnet_socket * ap, } /* Success : we have parsed all commands successfully */ - return(count); + return count; } #ifdef INITIAL_DISCOVERY @@ -300,7 +300,7 @@ irnet_ctrl_read(irnet_socket * ap, } DEXIT(CTRL_TRACE, "\n"); - return(strlen(event)); + return strlen(event); } #endif /* INITIAL_DISCOVERY */ @@ -409,7 +409,7 @@ irnet_ctrl_read(irnet_socket * ap, } DEXIT(CTRL_TRACE, "\n"); - return(strlen(event)); + return strlen(event); } /*------------------------------------------------------------------*/ @@ -623,7 +623,7 @@ dev_irnet_poll(struct file * file, mask |= irnet_ctrl_poll(ap, file, wait); DEXIT(FS_TRACE, " - mask=0x%X\n", mask); - return(mask); + return mask; } /*------------------------------------------------------------------*/ diff --git a/net/key/af_key.c b/net/key/af_key.c index 43040e97c47..d87c22df6f1 100644 --- a/net/key/af_key.c +++ b/net/key/af_key.c @@ -565,12 +565,12 @@ pfkey_proto2satype(uint16_t proto) static uint8_t pfkey_proto_to_xfrm(uint8_t proto) { - return (proto == IPSEC_PROTO_ANY ? 0 : proto); + return proto == IPSEC_PROTO_ANY ? 0 : proto; } static uint8_t pfkey_proto_from_xfrm(uint8_t proto) { - return (proto ? proto : IPSEC_PROTO_ANY); + return proto ? proto : IPSEC_PROTO_ANY; } static inline int pfkey_sockaddr_len(sa_family_t family) diff --git a/net/mac80211/rate.c b/net/mac80211/rate.c index 4f772de2f21..b0cc385bf98 100644 --- a/net/mac80211/rate.c +++ b/net/mac80211/rate.c @@ -207,7 +207,7 @@ static bool rc_no_data_or_no_ack(struct ieee80211_tx_rate_control *txrc) fc = hdr->frame_control; - return ((info->flags & IEEE80211_TX_CTL_NO_ACK) || !ieee80211_is_data(fc)); + return (info->flags & IEEE80211_TX_CTL_NO_ACK) || !ieee80211_is_data(fc); } static void rc_send_low_broadcast(s8 *idx, u32 basic_rates, u8 max_rate_idx) diff --git a/net/rfkill/input.c b/net/rfkill/input.c index 3713d7ecab9..1bca6d49ec9 100644 --- a/net/rfkill/input.c +++ b/net/rfkill/input.c @@ -142,7 +142,7 @@ static unsigned long rfkill_last_scheduled; static unsigned long rfkill_ratelimit(const unsigned long last) { const unsigned long delay = msecs_to_jiffies(RFKILL_OPS_DELAY); - return (time_after(jiffies, last + delay)) ? 0 : delay; + return time_after(jiffies, last + delay) ? 0 : delay; } static void rfkill_schedule_ratelimited(void) diff --git a/net/rose/rose_link.c b/net/rose/rose_link.c index a750a28e022..fa5f5641a2c 100644 --- a/net/rose/rose_link.c +++ b/net/rose/rose_link.c @@ -114,7 +114,7 @@ static int rose_send_frame(struct sk_buff *skb, struct rose_neigh *neigh) if (ax25s) ax25_cb_put(ax25s); - return (neigh->ax25 != NULL); + return neigh->ax25 != NULL; } /* @@ -137,7 +137,7 @@ static int rose_link_up(struct rose_neigh *neigh) if (ax25s) ax25_cb_put(ax25s); - return (neigh->ax25 != NULL); + return neigh->ax25 != NULL; } /* diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c index f774e657641..1ef29c74d85 100644 --- a/net/sctp/protocol.c +++ b/net/sctp/protocol.c @@ -799,7 +799,7 @@ static void sctp_inet_skb_msgname(struct sk_buff *skb, char *msgname, int *len) static int sctp_inet_af_supported(sa_family_t family, struct sctp_sock *sp) { /* PF_INET only supports AF_INET addresses. */ - return (AF_INET == family); + return AF_INET == family; } /* Address matching with wildcards allowed. */ diff --git a/net/sctp/socket.c b/net/sctp/socket.c index 6a691d84aef..535659fdbaa 100644 --- a/net/sctp/socket.c +++ b/net/sctp/socket.c @@ -3884,7 +3884,7 @@ static int sctp_getsockopt_sctp_status(struct sock *sk, int len, } out: - return (retval); + return retval; } @@ -3940,7 +3940,7 @@ static int sctp_getsockopt_peer_addr_info(struct sock *sk, int len, } out: - return (retval); + return retval; } /* 7.1.12 Enable/Disable message fragmentation (SCTP_DISABLE_FRAGMENTS) @@ -5594,7 +5594,7 @@ static int sctp_get_port(struct sock *sk, unsigned short snum) /* Note: sk->sk_num gets filled in if ephemeral port request. */ ret = sctp_get_port_local(sk, &addr); - return (ret ? 1 : 0); + return ret ? 1 : 0; } /* diff --git a/net/sunrpc/auth_gss/auth_gss.c b/net/sunrpc/auth_gss/auth_gss.c index dcfc66bab2b..597c493392a 100644 --- a/net/sunrpc/auth_gss/auth_gss.c +++ b/net/sunrpc/auth_gss/auth_gss.c @@ -1049,7 +1049,7 @@ gss_match(struct auth_cred *acred, struct rpc_cred *rc, int flags) out: if (acred->machine_cred != gss_cred->gc_machine_cred) return 0; - return (rc->cr_uid == acred->uid); + return rc->cr_uid == acred->uid; } /* diff --git a/net/sunrpc/auth_gss/gss_generic_token.c b/net/sunrpc/auth_gss/gss_generic_token.c index 310b78e9945..c586e92bcf7 100644 --- a/net/sunrpc/auth_gss/gss_generic_token.c +++ b/net/sunrpc/auth_gss/gss_generic_token.c @@ -76,19 +76,19 @@ static int der_length_size( int length) { if (length < (1<<7)) - return(1); + return 1; else if (length < (1<<8)) - return(2); + return 2; #if (SIZEOF_INT == 2) else - return(3); + return 3; #else else if (length < (1<<16)) - return(3); + return 3; else if (length < (1<<24)) - return(4); + return 4; else - return(5); + return 5; #endif } @@ -121,14 +121,14 @@ der_read_length(unsigned char **buf, int *bufsize) int ret; if (*bufsize < 1) - return(-1); + return -1; sf = *(*buf)++; (*bufsize)--; if (sf & 0x80) { if ((sf &= 0x7f) > ((*bufsize)-1)) - return(-1); + return -1; if (sf > SIZEOF_INT) - return (-1); + return -1; ret = 0; for (; sf; sf--) { ret = (ret<<8) + (*(*buf)++); @@ -138,7 +138,7 @@ der_read_length(unsigned char **buf, int *bufsize) ret = sf; } - return(ret); + return ret; } /* returns the length of a token, given the mech oid and the body size */ @@ -148,7 +148,7 @@ g_token_size(struct xdr_netobj *mech, unsigned int body_size) { /* set body_size to sequence contents size */ body_size += 2 + (int) mech->len; /* NEED overflow check */ - return(1 + der_length_size(body_size) + body_size); + return 1 + der_length_size(body_size) + body_size; } EXPORT_SYMBOL_GPL(g_token_size); @@ -186,27 +186,27 @@ g_verify_token_header(struct xdr_netobj *mech, int *body_size, int ret = 0; if ((toksize-=1) < 0) - return(G_BAD_TOK_HEADER); + return G_BAD_TOK_HEADER; if (*buf++ != 0x60) - return(G_BAD_TOK_HEADER); + return G_BAD_TOK_HEADER; if ((seqsize = der_read_length(&buf, &toksize)) < 0) - return(G_BAD_TOK_HEADER); + return G_BAD_TOK_HEADER; if (seqsize != toksize) - return(G_BAD_TOK_HEADER); + return G_BAD_TOK_HEADER; if ((toksize-=1) < 0) - return(G_BAD_TOK_HEADER); + return G_BAD_TOK_HEADER; if (*buf++ != 0x06) - return(G_BAD_TOK_HEADER); + return G_BAD_TOK_HEADER; if ((toksize-=1) < 0) - return(G_BAD_TOK_HEADER); + return G_BAD_TOK_HEADER; toid.len = *buf++; if ((toksize-=toid.len) < 0) - return(G_BAD_TOK_HEADER); + return G_BAD_TOK_HEADER; toid.data = buf; buf+=toid.len; @@ -217,17 +217,17 @@ g_verify_token_header(struct xdr_netobj *mech, int *body_size, to return G_BAD_TOK_HEADER if the token header is in fact bad */ if ((toksize-=2) < 0) - return(G_BAD_TOK_HEADER); + return G_BAD_TOK_HEADER; if (ret) - return(ret); + return ret; if (!ret) { *buf_in = buf; *body_size = toksize; } - return(ret); + return ret; } EXPORT_SYMBOL_GPL(g_verify_token_header); diff --git a/net/sunrpc/auth_gss/gss_krb5_seqnum.c b/net/sunrpc/auth_gss/gss_krb5_seqnum.c index 415c013ba38..62ac90c62cb 100644 --- a/net/sunrpc/auth_gss/gss_krb5_seqnum.c +++ b/net/sunrpc/auth_gss/gss_krb5_seqnum.c @@ -162,5 +162,5 @@ krb5_get_seq_num(struct krb5_ctx *kctx, *seqnum = ((plain[0]) | (plain[1] << 8) | (plain[2] << 16) | (plain[3] << 24)); - return (0); + return 0; } diff --git a/net/sunrpc/auth_gss/gss_mech_switch.c b/net/sunrpc/auth_gss/gss_mech_switch.c index 2689de39dc7..8b4061049d7 100644 --- a/net/sunrpc/auth_gss/gss_mech_switch.c +++ b/net/sunrpc/auth_gss/gss_mech_switch.c @@ -331,7 +331,7 @@ gss_delete_sec_context(struct gss_ctx **context_handle) *context_handle); if (!*context_handle) - return(GSS_S_NO_CONTEXT); + return GSS_S_NO_CONTEXT; if ((*context_handle)->internal_ctx_id) (*context_handle)->mech_type->gm_ops ->gss_delete_sec_context((*context_handle) diff --git a/net/sunrpc/sched.c b/net/sunrpc/sched.c index cace6049e4a..aa5dbda6608 100644 --- a/net/sunrpc/sched.c +++ b/net/sunrpc/sched.c @@ -376,7 +376,7 @@ int rpc_queue_empty(struct rpc_wait_queue *queue) spin_lock_bh(&queue->lock); res = queue->qlen; spin_unlock_bh(&queue->lock); - return (res == 0); + return res == 0; } EXPORT_SYMBOL_GPL(rpc_queue_empty); diff --git a/net/tipc/addr.c b/net/tipc/addr.c index c048543ffbe..2ddc351b3be 100644 --- a/net/tipc/addr.c +++ b/net/tipc/addr.c @@ -89,7 +89,7 @@ int tipc_addr_domain_valid(u32 addr) int tipc_addr_node_valid(u32 addr) { - return (tipc_addr_domain_valid(addr) && tipc_node(addr)); + return tipc_addr_domain_valid(addr) && tipc_node(addr); } int tipc_in_scope(u32 domain, u32 addr) diff --git a/net/tipc/bcast.c b/net/tipc/bcast.c index b11248c2d78..ecfaac10d0b 100644 --- a/net/tipc/bcast.c +++ b/net/tipc/bcast.c @@ -184,7 +184,7 @@ static void bclink_set_gap(struct tipc_node *n_ptr) static int bclink_ack_allowed(u32 n) { - return((n % TIPC_MIN_LINK_WIN) == tipc_own_tag); + return (n % TIPC_MIN_LINK_WIN) == tipc_own_tag; } diff --git a/net/tipc/bearer.c b/net/tipc/bearer.c index 52ae17b2583..9c10c6b7c12 100644 --- a/net/tipc/bearer.c +++ b/net/tipc/bearer.c @@ -63,7 +63,7 @@ static int media_name_valid(const char *name) len = strlen(name); if ((len + 1) > TIPC_MAX_MEDIA_NAME) return 0; - return (strspn(name, tipc_alphabet) == len); + return strspn(name, tipc_alphabet) == len; } /** diff --git a/net/tipc/dbg.c b/net/tipc/dbg.c index 1885a7edb0c..6569d45bfb9 100644 --- a/net/tipc/dbg.c +++ b/net/tipc/dbg.c @@ -134,7 +134,7 @@ void tipc_printbuf_reset(struct print_buf *pb) int tipc_printbuf_empty(struct print_buf *pb) { - return (!pb->buf || (pb->crs == pb->buf)); + return !pb->buf || (pb->crs == pb->buf); } /** @@ -169,7 +169,7 @@ int tipc_printbuf_validate(struct print_buf *pb) tipc_printf(pb, err); } } - return (pb->crs - pb->buf + 1); + return pb->crs - pb->buf + 1; } /** diff --git a/net/tipc/link.c b/net/tipc/link.c index a6a3102bb4d..b8cf1e9d0b8 100644 --- a/net/tipc/link.c +++ b/net/tipc/link.c @@ -239,13 +239,13 @@ int tipc_link_is_up(struct link *l_ptr) { if (!l_ptr) return 0; - return (link_working_working(l_ptr) || link_working_unknown(l_ptr)); + return link_working_working(l_ptr) || link_working_unknown(l_ptr); } int tipc_link_is_active(struct link *l_ptr) { - return ((l_ptr->owner->active_links[0] == l_ptr) || - (l_ptr->owner->active_links[1] == l_ptr)); + return (l_ptr->owner->active_links[0] == l_ptr) || + (l_ptr->owner->active_links[1] == l_ptr); } /** diff --git a/net/tipc/link.h b/net/tipc/link.h index 2e5385c47d3..26151d30589 100644 --- a/net/tipc/link.h +++ b/net/tipc/link.h @@ -279,12 +279,12 @@ static inline int between(u32 lower, u32 upper, u32 n) static inline int less_eq(u32 left, u32 right) { - return (mod(right - left) < 32768u); + return mod(right - left) < 32768u; } static inline int less(u32 left, u32 right) { - return (less_eq(left, right) && (mod(right) != mod(left))); + return less_eq(left, right) && (mod(right) != mod(left)); } static inline u32 lesser(u32 left, u32 right) @@ -299,32 +299,32 @@ static inline u32 lesser(u32 left, u32 right) static inline int link_working_working(struct link *l_ptr) { - return (l_ptr->state == WORKING_WORKING); + return l_ptr->state == WORKING_WORKING; } static inline int link_working_unknown(struct link *l_ptr) { - return (l_ptr->state == WORKING_UNKNOWN); + return l_ptr->state == WORKING_UNKNOWN; } static inline int link_reset_unknown(struct link *l_ptr) { - return (l_ptr->state == RESET_UNKNOWN); + return l_ptr->state == RESET_UNKNOWN; } static inline int link_reset_reset(struct link *l_ptr) { - return (l_ptr->state == RESET_RESET); + return l_ptr->state == RESET_RESET; } static inline int link_blocked(struct link *l_ptr) { - return (l_ptr->exp_msg_count || l_ptr->blocked); + return l_ptr->exp_msg_count || l_ptr->blocked; } static inline int link_congested(struct link *l_ptr) { - return (l_ptr->out_queue_size >= l_ptr->queue_limit[0]); + return l_ptr->out_queue_size >= l_ptr->queue_limit[0]; } #endif diff --git a/net/tipc/msg.h b/net/tipc/msg.h index 995d2da35b0..031aad18efc 100644 --- a/net/tipc/msg.h +++ b/net/tipc/msg.h @@ -104,7 +104,7 @@ static inline u32 msg_user(struct tipc_msg *m) static inline u32 msg_isdata(struct tipc_msg *m) { - return (msg_user(m) <= TIPC_CRITICAL_IMPORTANCE); + return msg_user(m) <= TIPC_CRITICAL_IMPORTANCE; } static inline void msg_set_user(struct tipc_msg *m, u32 n) @@ -289,7 +289,7 @@ static inline void msg_set_destnode(struct tipc_msg *m, u32 a) static inline int msg_is_dest(struct tipc_msg *m, u32 d) { - return(msg_short(m) || (msg_destnode(m) == d)); + return msg_short(m) || (msg_destnode(m) == d); } static inline u32 msg_routed(struct tipc_msg *m) @@ -632,7 +632,7 @@ static inline void msg_set_bcast_tag(struct tipc_msg *m, u32 n) static inline u32 msg_max_pkt(struct tipc_msg *m) { - return (msg_bits(m, 9, 16, 0xffff) * 4); + return msg_bits(m, 9, 16, 0xffff) * 4; } static inline void msg_set_max_pkt(struct tipc_msg *m, u32 n) diff --git a/net/tipc/name_table.c b/net/tipc/name_table.c index c13c2c7c4b5..9ca4b068923 100644 --- a/net/tipc/name_table.c +++ b/net/tipc/name_table.c @@ -116,7 +116,7 @@ DEFINE_RWLOCK(tipc_nametbl_lock); static int hash(int x) { - return(x & (tipc_nametbl_size - 1)); + return x & (tipc_nametbl_size - 1); } /** diff --git a/net/tipc/node.c b/net/tipc/node.c index b702c7bf580..7c49cd056df 100644 --- a/net/tipc/node.c +++ b/net/tipc/node.c @@ -242,17 +242,17 @@ int tipc_node_has_active_links(struct tipc_node *n_ptr) int tipc_node_has_redundant_links(struct tipc_node *n_ptr) { - return (n_ptr->working_links > 1); + return n_ptr->working_links > 1; } static int tipc_node_has_active_routes(struct tipc_node *n_ptr) { - return (n_ptr && (n_ptr->last_router >= 0)); + return n_ptr && (n_ptr->last_router >= 0); } int tipc_node_is_up(struct tipc_node *n_ptr) { - return (tipc_node_has_active_links(n_ptr) || tipc_node_has_active_routes(n_ptr)); + return tipc_node_has_active_links(n_ptr) || tipc_node_has_active_routes(n_ptr); } struct tipc_node *tipc_node_attach_link(struct link *l_ptr) diff --git a/net/tipc/port.h b/net/tipc/port.h index 8d1652aab29..e74bd956373 100644 --- a/net/tipc/port.h +++ b/net/tipc/port.h @@ -157,7 +157,7 @@ static inline u32 tipc_peer_node(struct port *p_ptr) static inline int tipc_port_congested(struct port *p_ptr) { - return((p_ptr->sent - p_ptr->acked) >= (TIPC_FLOW_CONTROL_WIN * 2)); + return (p_ptr->sent - p_ptr->acked) >= (TIPC_FLOW_CONTROL_WIN * 2); } /** diff --git a/net/tipc/socket.c b/net/tipc/socket.c index f7ac94de24f..33217fc3d69 100644 --- a/net/tipc/socket.c +++ b/net/tipc/socket.c @@ -1195,7 +1195,7 @@ static int rx_queue_full(struct tipc_msg *msg, u32 queue_size, u32 base) if (msg_connected(msg)) threshold *= 4; - return (queue_size >= threshold); + return queue_size >= threshold; } /** diff --git a/net/tipc/subscr.c b/net/tipc/subscr.c index ab6eab4c45e..1a5b9a6bd12 100644 --- a/net/tipc/subscr.c +++ b/net/tipc/subscr.c @@ -604,6 +604,6 @@ int tipc_ispublished(struct tipc_name const *name) { u32 domain = 0; - return(tipc_nametbl_translate(name->type, name->instance,&domain) != 0); + return tipc_nametbl_translate(name->type, name->instance, &domain) != 0; } diff --git a/net/wireless/core.h b/net/wireless/core.h index 37580e090a3..5d89310b358 100644 --- a/net/wireless/core.h +++ b/net/wireless/core.h @@ -86,7 +86,7 @@ struct cfg80211_registered_device *wiphy_to_dev(struct wiphy *wiphy) static inline bool wiphy_idx_valid(int wiphy_idx) { - return (wiphy_idx >= 0); + return wiphy_idx >= 0; } -- cgit v1.2.3-70-g09d2 From e31b82136d1adc7a599b6e99d3321e5831841f5a Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Tue, 5 Oct 2010 19:39:30 +0200 Subject: cfg80211/mac80211: allow per-station GTKs This adds API to allow adding per-station GTKs, updates mac80211 to support it, and also allows drivers to remove a key from hwaccel again when this may be necessary due to multiple GTKs. Signed-off-by: Johannes Berg Signed-off-by: John W. Linville --- drivers/net/wireless/iwmc3200wifi/cfg80211.c | 7 +- drivers/net/wireless/libertas/cfg.c | 4 +- drivers/net/wireless/rndis_wlan.c | 12 ++-- include/linux/nl80211.h | 12 ++++ include/net/cfg80211.h | 9 ++- include/net/mac80211.h | 24 +++++++ net/mac80211/cfg.c | 32 +++++++--- net/mac80211/ieee80211_i.h | 2 - net/mac80211/key.c | 95 ++++++++++++++++++---------- net/mac80211/key.h | 3 + net/mac80211/rx.c | 41 +++++++----- net/mac80211/sta_info.c | 10 +-- net/mac80211/sta_info.h | 6 +- net/mac80211/tx.c | 2 +- net/wireless/core.h | 2 +- net/wireless/ibss.c | 2 +- net/wireless/nl80211.c | 87 ++++++++++++++++++++++--- net/wireless/sme.c | 2 +- net/wireless/util.c | 12 +++- net/wireless/wext-compat.c | 38 +++++++---- 20 files changed, 293 insertions(+), 109 deletions(-) (limited to 'net/wireless/core.h') diff --git a/drivers/net/wireless/iwmc3200wifi/cfg80211.c b/drivers/net/wireless/iwmc3200wifi/cfg80211.c index 60619678f4e..c6c0eff9b5e 100644 --- a/drivers/net/wireless/iwmc3200wifi/cfg80211.c +++ b/drivers/net/wireless/iwmc3200wifi/cfg80211.c @@ -161,7 +161,7 @@ static int iwm_key_init(struct iwm_key *key, u8 key_index, } static int iwm_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev, - u8 key_index, const u8 *mac_addr, + u8 key_index, bool pairwise, const u8 *mac_addr, struct key_params *params) { struct iwm_priv *iwm = ndev_to_iwm(ndev); @@ -181,7 +181,8 @@ static int iwm_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev, } static int iwm_cfg80211_get_key(struct wiphy *wiphy, struct net_device *ndev, - u8 key_index, const u8 *mac_addr, void *cookie, + u8 key_index, bool pairwise, const u8 *mac_addr, + void *cookie, void (*callback)(void *cookie, struct key_params*)) { @@ -206,7 +207,7 @@ static int iwm_cfg80211_get_key(struct wiphy *wiphy, struct net_device *ndev, static int iwm_cfg80211_del_key(struct wiphy *wiphy, struct net_device *ndev, - u8 key_index, const u8 *mac_addr) + u8 key_index, bool pairwise, const u8 *mac_addr) { struct iwm_priv *iwm = ndev_to_iwm(ndev); struct iwm_key *key = &iwm->keys[key_index]; diff --git a/drivers/net/wireless/libertas/cfg.c b/drivers/net/wireless/libertas/cfg.c index cb3b855d949..1dc44bc6511 100644 --- a/drivers/net/wireless/libertas/cfg.c +++ b/drivers/net/wireless/libertas/cfg.c @@ -1438,7 +1438,7 @@ static int lbs_cfg_set_default_key(struct wiphy *wiphy, static int lbs_cfg_add_key(struct wiphy *wiphy, struct net_device *netdev, - u8 idx, const u8 *mac_addr, + u8 idx, bool pairwise, const u8 *mac_addr, struct key_params *params) { struct lbs_private *priv = wiphy_priv(wiphy); @@ -1498,7 +1498,7 @@ static int lbs_cfg_add_key(struct wiphy *wiphy, struct net_device *netdev, static int lbs_cfg_del_key(struct wiphy *wiphy, struct net_device *netdev, - u8 key_index, const u8 *mac_addr) + u8 key_index, bool pairwise, const u8 *mac_addr) { lbs_deb_enter(LBS_DEB_CFG80211); diff --git a/drivers/net/wireless/rndis_wlan.c b/drivers/net/wireless/rndis_wlan.c index 719573bbbf8..71b5971da59 100644 --- a/drivers/net/wireless/rndis_wlan.c +++ b/drivers/net/wireless/rndis_wlan.c @@ -540,11 +540,11 @@ static int rndis_set_channel(struct wiphy *wiphy, struct net_device *dev, struct ieee80211_channel *chan, enum nl80211_channel_type channel_type); static int rndis_add_key(struct wiphy *wiphy, struct net_device *netdev, - u8 key_index, const u8 *mac_addr, - struct key_params *params); + u8 key_index, bool pairwise, const u8 *mac_addr, + struct key_params *params); static int rndis_del_key(struct wiphy *wiphy, struct net_device *netdev, - u8 key_index, const u8 *mac_addr); + u8 key_index, bool pairwise, const u8 *mac_addr); static int rndis_set_default_key(struct wiphy *wiphy, struct net_device *netdev, u8 key_index); @@ -2308,8 +2308,8 @@ static int rndis_set_channel(struct wiphy *wiphy, struct net_device *netdev, } static int rndis_add_key(struct wiphy *wiphy, struct net_device *netdev, - u8 key_index, const u8 *mac_addr, - struct key_params *params) + u8 key_index, bool pairwise, const u8 *mac_addr, + struct key_params *params) { struct rndis_wlan_private *priv = wiphy_priv(wiphy); struct usbnet *usbdev = priv->usbdev; @@ -2344,7 +2344,7 @@ static int rndis_add_key(struct wiphy *wiphy, struct net_device *netdev, } static int rndis_del_key(struct wiphy *wiphy, struct net_device *netdev, - u8 key_index, const u8 *mac_addr) + u8 key_index, bool pairwise, const u8 *mac_addr) { struct rndis_wlan_private *priv = wiphy_priv(wiphy); struct usbnet *usbdev = priv->usbdev; diff --git a/include/linux/nl80211.h b/include/linux/nl80211.h index c4efdfa24ed..e451f176e66 100644 --- a/include/linux/nl80211.h +++ b/include/linux/nl80211.h @@ -801,6 +801,9 @@ enum nl80211_commands { * This is used in association with @NL80211_ATTR_WIPHY_TX_POWER_SETTING * for non-automatic settings. * + * @NL80211_ATTR_SUPPORT_IBSS_RSN: The device supports IBSS RSN, which mostly + * means support for per-station GTKs. + * * @NL80211_ATTR_MAX: highest attribute number currently defined * @__NL80211_ATTR_AFTER_LAST: internal use */ @@ -968,6 +971,8 @@ enum nl80211_attrs { NL80211_ATTR_CONTROL_PORT_ETHERTYPE, NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT, + NL80211_ATTR_SUPPORT_IBSS_RSN, + /* add attributes here, update the policy in nl80211.c */ __NL80211_ATTR_AFTER_LAST, @@ -1659,11 +1664,14 @@ enum nl80211_auth_type { * @NL80211_KEYTYPE_GROUP: Group (broadcast/multicast) key * @NL80211_KEYTYPE_PAIRWISE: Pairwise (unicast/individual) key * @NL80211_KEYTYPE_PEERKEY: PeerKey (DLS) + * @NUM_NL80211_KEYTYPES: number of defined key types */ enum nl80211_key_type { NL80211_KEYTYPE_GROUP, NL80211_KEYTYPE_PAIRWISE, NL80211_KEYTYPE_PEERKEY, + + NUM_NL80211_KEYTYPES }; /** @@ -1694,6 +1702,9 @@ enum nl80211_wpa_versions { * CCMP keys, each six bytes in little endian * @NL80211_KEY_DEFAULT: flag indicating default key * @NL80211_KEY_DEFAULT_MGMT: flag indicating default management key + * @NL80211_KEY_TYPE: the key type from enum nl80211_key_type, if not + * specified the default depends on whether a MAC address was + * given with the command using the key or not (u32) * @__NL80211_KEY_AFTER_LAST: internal * @NL80211_KEY_MAX: highest key attribute */ @@ -1705,6 +1716,7 @@ enum nl80211_key_attributes { NL80211_KEY_SEQ, NL80211_KEY_DEFAULT, NL80211_KEY_DEFAULT_MGMT, + NL80211_KEY_TYPE, /* keep last */ __NL80211_KEY_AFTER_LAST, diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index 5f4d8acf7ab..0f77515266b 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -1130,13 +1130,14 @@ struct cfg80211_ops { struct vif_params *params); int (*add_key)(struct wiphy *wiphy, struct net_device *netdev, - u8 key_index, const u8 *mac_addr, + u8 key_index, bool pairwise, const u8 *mac_addr, struct key_params *params); int (*get_key)(struct wiphy *wiphy, struct net_device *netdev, - u8 key_index, const u8 *mac_addr, void *cookie, + u8 key_index, bool pairwise, const u8 *mac_addr, + void *cookie, void (*callback)(void *cookie, struct key_params*)); int (*del_key)(struct wiphy *wiphy, struct net_device *netdev, - u8 key_index, const u8 *mac_addr); + u8 key_index, bool pairwise, const u8 *mac_addr); int (*set_default_key)(struct wiphy *wiphy, struct net_device *netdev, u8 key_index); @@ -1304,6 +1305,7 @@ struct cfg80211_ops { * @WIPHY_FLAG_CONTROL_PORT_PROTOCOL: This device supports setting the * control port protocol ethertype. The device also honours the * control_port_no_encrypt flag. + * @WIPHY_FLAG_IBSS_RSN: The device supports IBSS RSN. */ enum wiphy_flags { WIPHY_FLAG_CUSTOM_REGULATORY = BIT(0), @@ -1314,6 +1316,7 @@ enum wiphy_flags { WIPHY_FLAG_4ADDR_AP = BIT(5), WIPHY_FLAG_4ADDR_STATION = BIT(6), WIPHY_FLAG_CONTROL_PORT_PROTOCOL = BIT(7), + WIPHY_FLAG_IBSS_RSN = BIT(7), }; struct mac_address { diff --git a/include/net/mac80211.h b/include/net/mac80211.h index 47316a653ae..33aa2e39147 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -1041,6 +1041,13 @@ enum ieee80211_tkip_key_type { * @IEEE80211_HW_NEED_DTIM_PERIOD: * This device needs to know the DTIM period for the BSS before * associating. + * + * @IEEE80211_HW_SUPPORTS_PER_STA_GTK: The device's crypto engine supports + * per-station GTKs as used by IBSS RSN or during fast transition. If + * the device doesn't support per-station GTKs, but can be asked not + * to decrypt group addressed frames, then IBSS RSN support is still + * possible but software crypto will be used. Advertise the wiphy flag + * only in that case. */ enum ieee80211_hw_flags { IEEE80211_HW_HAS_RATE_CONTROL = 1<<0, @@ -1064,6 +1071,7 @@ enum ieee80211_hw_flags { IEEE80211_HW_REPORTS_TX_ACK_STATUS = 1<<18, IEEE80211_HW_CONNECTION_MONITOR = 1<<19, IEEE80211_HW_SUPPORTS_CQM_RSSI = 1<<20, + IEEE80211_HW_SUPPORTS_PER_STA_GTK = 1<<21, }; /** @@ -2582,6 +2590,22 @@ void ieee80211_chswitch_done(struct ieee80211_vif *vif, bool success); void ieee80211_request_smps(struct ieee80211_vif *vif, enum ieee80211_smps_mode smps_mode); +/** + * ieee80211_key_removed - disable hw acceleration for key + * @key_conf: The key hw acceleration should be disabled for + * + * This allows drivers to indicate that the given key has been + * removed from hardware acceleration, due to a new key that + * was added. Don't use this if the key can continue to be used + * for TX, if the key restriction is on RX only it is permitted + * to keep the key for TX only and not call this function. + * + * Due to locking constraints, it may only be called during + * @set_key. This function must be allowed to sleep, and the + * key it tries to disable may still be used until it returns. + */ +void ieee80211_key_removed(struct ieee80211_key_conf *key_conf); + /* Rate control API */ /** diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index 94bf550bd4c..8b0e874a3d6 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -103,7 +103,7 @@ static int ieee80211_change_iface(struct wiphy *wiphy, } static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev, - u8 key_idx, const u8 *mac_addr, + u8 key_idx, bool pairwise, const u8 *mac_addr, struct key_params *params) { struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); @@ -131,6 +131,9 @@ static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev, if (IS_ERR(key)) return PTR_ERR(key); + if (pairwise) + key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE; + mutex_lock(&sdata->local->sta_mtx); if (mac_addr) { @@ -153,7 +156,7 @@ static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev, } static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev, - u8 key_idx, const u8 *mac_addr) + u8 key_idx, bool pairwise, const u8 *mac_addr) { struct ieee80211_sub_if_data *sdata; struct sta_info *sta; @@ -170,10 +173,17 @@ static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev, if (!sta) goto out_unlock; - if (sta->key) { - ieee80211_key_free(sdata->local, sta->key); - WARN_ON(sta->key); - ret = 0; + if (pairwise) { + if (sta->ptk) { + ieee80211_key_free(sdata->local, sta->ptk); + ret = 0; + } + } else { + if (sta->gtk[key_idx]) { + ieee80211_key_free(sdata->local, + sta->gtk[key_idx]); + ret = 0; + } } goto out_unlock; @@ -195,7 +205,8 @@ static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev, } static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, - u8 key_idx, const u8 *mac_addr, void *cookie, + u8 key_idx, bool pairwise, const u8 *mac_addr, + void *cookie, void (*callback)(void *cookie, struct key_params *params)) { @@ -203,7 +214,7 @@ static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, struct sta_info *sta = NULL; u8 seq[6] = {0}; struct key_params params; - struct ieee80211_key *key; + struct ieee80211_key *key = NULL; u32 iv32; u16 iv16; int err = -ENOENT; @@ -217,7 +228,10 @@ static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, if (!sta) goto out; - key = sta->key; + if (pairwise) + key = sta->ptk; + else if (key_idx < NUM_DEFAULT_KEYS) + key = sta->gtk[key_idx]; } else key = sdata->keys[key_idx]; diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 76c2b50ec6f..f0610fa4fbe 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -549,8 +549,6 @@ struct ieee80211_sub_if_data { struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX]; unsigned int fragment_next; -#define NUM_DEFAULT_KEYS 4 -#define NUM_DEFAULT_MGMT_KEYS 2 struct ieee80211_key *keys[NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS]; struct ieee80211_key *default_key; struct ieee80211_key *default_mgmt_key; diff --git a/net/mac80211/key.c b/net/mac80211/key.c index 6a63d1abd14..ccd676b2f59 100644 --- a/net/mac80211/key.c +++ b/net/mac80211/key.c @@ -68,15 +68,21 @@ static int ieee80211_key_enable_hw_accel(struct ieee80211_key *key) might_sleep(); - if (!key->local->ops->set_key) { - ret = -EOPNOTSUPP; + if (!key->local->ops->set_key) goto out_unsupported; - } assert_key_lock(key->local); sta = get_sta_for_key(key); + /* + * If this is a per-STA GTK, check if it + * is supported; if not, return. + */ + if (sta && !(key->conf.flags & IEEE80211_KEY_FLAG_PAIRWISE) && + !(key->local->hw.flags & IEEE80211_HW_SUPPORTS_PER_STA_GTK)) + goto out_unsupported; + sdata = key->sdata; if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN) sdata = container_of(sdata->bss, @@ -85,31 +91,28 @@ static int ieee80211_key_enable_hw_accel(struct ieee80211_key *key) ret = drv_set_key(key->local, SET_KEY, sdata, sta, &key->conf); - if (!ret) + if (!ret) { key->flags |= KEY_FLAG_UPLOADED_TO_HARDWARE; + return 0; + } - if (ret && ret != -ENOSPC && ret != -EOPNOTSUPP) + if (ret != -ENOSPC && ret != -EOPNOTSUPP) wiphy_err(key->local->hw.wiphy, "failed to set key (%d, %pM) to hardware (%d)\n", key->conf.keyidx, sta ? sta->addr : bcast_addr, ret); -out_unsupported: - if (ret) { - switch (key->conf.cipher) { - case WLAN_CIPHER_SUITE_WEP40: - case WLAN_CIPHER_SUITE_WEP104: - case WLAN_CIPHER_SUITE_TKIP: - case WLAN_CIPHER_SUITE_CCMP: - case WLAN_CIPHER_SUITE_AES_CMAC: - /* all of these we can do in software */ - ret = 0; - break; - default: - ret = -EINVAL; - } + out_unsupported: + switch (key->conf.cipher) { + case WLAN_CIPHER_SUITE_WEP40: + case WLAN_CIPHER_SUITE_WEP104: + case WLAN_CIPHER_SUITE_TKIP: + case WLAN_CIPHER_SUITE_CCMP: + case WLAN_CIPHER_SUITE_AES_CMAC: + /* all of these we can do in software */ + return 0; + default: + return -EINVAL; } - - return ret; } static void ieee80211_key_disable_hw_accel(struct ieee80211_key *key) @@ -147,6 +150,26 @@ static void ieee80211_key_disable_hw_accel(struct ieee80211_key *key) key->flags &= ~KEY_FLAG_UPLOADED_TO_HARDWARE; } +void ieee80211_key_removed(struct ieee80211_key_conf *key_conf) +{ + struct ieee80211_key *key; + + key = container_of(key_conf, struct ieee80211_key, conf); + + might_sleep(); + assert_key_lock(key->local); + + key->flags &= ~KEY_FLAG_UPLOADED_TO_HARDWARE; + + /* + * Flush TX path to avoid attempts to use this key + * after this function returns. Until then, drivers + * must be prepared to handle the key. + */ + synchronize_rcu(); +} +EXPORT_SYMBOL_GPL(ieee80211_key_removed); + static void __ieee80211_set_default_key(struct ieee80211_sub_if_data *sdata, int idx) { @@ -202,6 +225,7 @@ void ieee80211_set_default_mgmt_key(struct ieee80211_sub_if_data *sdata, static void __ieee80211_key_replace(struct ieee80211_sub_if_data *sdata, struct sta_info *sta, + bool pairwise, struct ieee80211_key *old, struct ieee80211_key *new) { @@ -210,8 +234,14 @@ static void __ieee80211_key_replace(struct ieee80211_sub_if_data *sdata, if (new) list_add(&new->list, &sdata->key_list); - if (sta) { - rcu_assign_pointer(sta->key, new); + if (sta && pairwise) { + rcu_assign_pointer(sta->ptk, new); + } else if (sta) { + if (old) + idx = old->conf.keyidx; + else + idx = new->conf.keyidx; + rcu_assign_pointer(sta->gtk[idx], new); } else { WARN_ON(new && old && new->conf.keyidx != old->conf.keyidx); @@ -355,6 +385,7 @@ int ieee80211_key_link(struct ieee80211_key *key, { struct ieee80211_key *old_key; int idx, ret; + bool pairwise = key->conf.flags & IEEE80211_KEY_FLAG_PAIRWISE; BUG_ON(!sdata); BUG_ON(!key); @@ -371,13 +402,6 @@ int ieee80211_key_link(struct ieee80211_key *key, */ if (test_sta_flags(sta, WLAN_STA_WME)) key->conf.flags |= IEEE80211_KEY_FLAG_WMM_STA; - - /* - * This key is for a specific sta interface, - * inform the driver that it should try to store - * this key as pairwise key. - */ - key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE; } else { if (sdata->vif.type == NL80211_IFTYPE_STATION) { struct sta_info *ap; @@ -399,12 +423,14 @@ int ieee80211_key_link(struct ieee80211_key *key, mutex_lock(&sdata->local->key_mtx); - if (sta) - old_key = sta->key; + if (sta && pairwise) + old_key = sta->ptk; + else if (sta) + old_key = sta->gtk[idx]; else old_key = sdata->keys[idx]; - __ieee80211_key_replace(sdata, sta, old_key, key); + __ieee80211_key_replace(sdata, sta, pairwise, old_key, key); __ieee80211_key_destroy(old_key); ieee80211_debugfs_key_add(key); @@ -423,7 +449,8 @@ static void __ieee80211_key_free(struct ieee80211_key *key) */ if (key->sdata) __ieee80211_key_replace(key->sdata, key->sta, - key, NULL); + key->conf.flags & IEEE80211_KEY_FLAG_PAIRWISE, + key, NULL); __ieee80211_key_destroy(key); } diff --git a/net/mac80211/key.h b/net/mac80211/key.h index cb9a4a65cc6..0db1c0f5f69 100644 --- a/net/mac80211/key.h +++ b/net/mac80211/key.h @@ -16,6 +16,9 @@ #include #include +#define NUM_DEFAULT_KEYS 4 +#define NUM_DEFAULT_MGMT_KEYS 2 + #define WEP_IV_LEN 4 #define WEP_ICV_LEN 4 #define ALG_TKIP_KEY_LEN 32 diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index b3e161ffa4b..b67221def58 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -846,7 +846,7 @@ ieee80211_rx_h_decrypt(struct ieee80211_rx_data *rx) int keyidx; int hdrlen; ieee80211_rx_result result = RX_DROP_UNUSABLE; - struct ieee80211_key *stakey = NULL; + struct ieee80211_key *sta_ptk = NULL; int mmie_keyidx = -1; __le16 fc; @@ -888,15 +888,15 @@ ieee80211_rx_h_decrypt(struct ieee80211_rx_data *rx) rx->key = NULL; if (rx->sta) - stakey = rcu_dereference(rx->sta->key); + sta_ptk = rcu_dereference(rx->sta->ptk); fc = hdr->frame_control; if (!ieee80211_has_protected(fc)) mmie_keyidx = ieee80211_get_mmie_keyidx(rx->skb); - if (!is_multicast_ether_addr(hdr->addr1) && stakey) { - rx->key = stakey; + if (!is_multicast_ether_addr(hdr->addr1) && sta_ptk) { + rx->key = sta_ptk; if ((status->flag & RX_FLAG_DECRYPTED) && (status->flag & RX_FLAG_IV_STRIPPED)) return RX_CONTINUE; @@ -912,7 +912,10 @@ ieee80211_rx_h_decrypt(struct ieee80211_rx_data *rx) if (mmie_keyidx < NUM_DEFAULT_KEYS || mmie_keyidx >= NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS) return RX_DROP_MONITOR; /* unexpected BIP keyidx */ - rx->key = rcu_dereference(rx->sdata->keys[mmie_keyidx]); + if (rx->sta) + rx->key = rcu_dereference(rx->sta->gtk[mmie_keyidx]); + if (!rx->key) + rx->key = rcu_dereference(rx->sdata->keys[mmie_keyidx]); } else if (!ieee80211_has_protected(fc)) { /* * The frame was not protected, so skip decryption. However, we @@ -955,17 +958,25 @@ ieee80211_rx_h_decrypt(struct ieee80211_rx_data *rx) skb_copy_bits(rx->skb, hdrlen + 3, &keyid, 1); keyidx = keyid >> 6; - rx->key = rcu_dereference(rx->sdata->keys[keyidx]); + /* check per-station GTK first, if multicast packet */ + if (is_multicast_ether_addr(hdr->addr1) && rx->sta) + rx->key = rcu_dereference(rx->sta->gtk[keyidx]); - /* - * RSNA-protected unicast frames should always be sent with - * pairwise or station-to-station keys, but for WEP we allow - * using a key index as well. - */ - if (rx->key && rx->key->conf.cipher != WLAN_CIPHER_SUITE_WEP40 && - rx->key->conf.cipher != WLAN_CIPHER_SUITE_WEP104 && - !is_multicast_ether_addr(hdr->addr1)) - rx->key = NULL; + /* if not found, try default key */ + if (!rx->key) { + rx->key = rcu_dereference(rx->sdata->keys[keyidx]); + + /* + * RSNA-protected unicast frames should always be + * sent with pairwise or station-to-station keys, + * but for WEP we allow using a key index as well. + */ + if (rx->key && + rx->key->conf.cipher != WLAN_CIPHER_SUITE_WEP40 && + rx->key->conf.cipher != WLAN_CIPHER_SUITE_WEP104 && + !is_multicast_ether_addr(hdr->addr1)) + rx->key = NULL; + } } if (rx->key) { diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c index aeaf2d6fccc..6d8f897d876 100644 --- a/net/mac80211/sta_info.c +++ b/net/mac80211/sta_info.c @@ -616,7 +616,7 @@ static int __must_check __sta_info_destroy(struct sta_info *sta) struct ieee80211_sub_if_data *sdata; struct sk_buff *skb; unsigned long flags; - int ret; + int ret, i; might_sleep(); @@ -644,10 +644,10 @@ static int __must_check __sta_info_destroy(struct sta_info *sta) if (ret) return ret; - if (sta->key) { - ieee80211_key_free(local, sta->key); - WARN_ON(sta->key); - } + for (i = 0; i < NUM_DEFAULT_KEYS; i++) + ieee80211_key_free(local, sta->gtk[i]); + if (sta->ptk) + ieee80211_key_free(local, sta->ptk); sta->dead = true; diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h index cf21a2e8134..9265acadef3 100644 --- a/net/mac80211/sta_info.h +++ b/net/mac80211/sta_info.h @@ -199,7 +199,8 @@ enum plink_state { * @hnext: hash table linked list pointer * @local: pointer to the global information * @sdata: virtual interface this station belongs to - * @key: peer key negotiated with this station, if any + * @ptk: peer key negotiated with this station, if any + * @gtk: group keys negotiated with this station, if any * @rate_ctrl: rate control algorithm reference * @rate_ctrl_priv: rate control private per-STA pointer * @last_tx_rate: rate used for last transmit, to report to userspace as @@ -254,7 +255,8 @@ struct sta_info { struct sta_info *hnext; struct ieee80211_local *local; struct ieee80211_sub_if_data *sdata; - struct ieee80211_key *key; + struct ieee80211_key *gtk[NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS]; + struct ieee80211_key *ptk; struct rate_control_ref *rate_ctrl; void *rate_ctrl_priv; spinlock_t lock; diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index 258fbdbedbd..96c59430950 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -532,7 +532,7 @@ ieee80211_tx_h_select_key(struct ieee80211_tx_data *tx) if (unlikely(info->flags & IEEE80211_TX_INTFL_DONT_ENCRYPT)) tx->key = NULL; - else if (tx->sta && (key = rcu_dereference(tx->sta->key))) + else if (tx->sta && (key = rcu_dereference(tx->sta->ptk))) tx->key = key; else if (ieee80211_is_mgmt(hdr->frame_control) && is_multicast_ether_addr(hdr->addr1) && diff --git a/net/wireless/core.h b/net/wireless/core.h index 37580e090a3..2d1d4c70113 100644 --- a/net/wireless/core.h +++ b/net/wireless/core.h @@ -375,7 +375,7 @@ bool cfg80211_sme_failed_reassoc(struct wireless_dev *wdev); /* internal helpers */ int cfg80211_validate_key_settings(struct cfg80211_registered_device *rdev, struct key_params *params, int key_idx, - const u8 *mac_addr); + bool pairwise, const u8 *mac_addr); void __cfg80211_disconnected(struct net_device *dev, const u8 *ie, size_t ie_len, u16 reason, bool from_ap); void cfg80211_sme_scan_done(struct net_device *dev); diff --git a/net/wireless/ibss.c b/net/wireless/ibss.c index 8cb6e08373b..f33fbb79437 100644 --- a/net/wireless/ibss.c +++ b/net/wireless/ibss.c @@ -160,7 +160,7 @@ static void __cfg80211_clear_ibss(struct net_device *dev, bool nowext) */ if (rdev->ops->del_key) for (i = 0; i < 6; i++) - rdev->ops->del_key(wdev->wiphy, dev, i, NULL); + rdev->ops->del_key(wdev->wiphy, dev, i, false, NULL); if (wdev->current_bss) { cfg80211_unhold_bss(wdev->current_bss); diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 0c9497170f1..8826888cc14 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -93,6 +93,7 @@ static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = { [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 }, [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG }, [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 }, + [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 }, [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 }, [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 }, @@ -168,7 +169,7 @@ static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = { [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 }, }; -/* policy for the attributes */ +/* policy for the key attributes */ static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = { [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN }, [NL80211_KEY_IDX] = { .type = NLA_U8 }, @@ -176,6 +177,7 @@ static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = { [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 }, [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG }, [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG }, + [NL80211_KEY_TYPE] = { .type = NLA_U32 }, }; /* ifidx get helper */ @@ -306,6 +308,7 @@ static int nl80211_msg_put_channel(struct sk_buff *msg, struct key_parse { struct key_params p; int idx; + int type; bool def, defmgmt; }; @@ -336,6 +339,12 @@ static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k) if (tb[NL80211_KEY_CIPHER]) k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]); + if (tb[NL80211_KEY_TYPE]) { + k->type = nla_get_u32(tb[NL80211_KEY_TYPE]); + if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES) + return -EINVAL; + } + return 0; } @@ -360,6 +369,12 @@ static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k) k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT]; k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT]; + if (info->attrs[NL80211_ATTR_KEY_TYPE]) { + k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]); + if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES) + return -EINVAL; + } + return 0; } @@ -369,6 +384,7 @@ static int nl80211_parse_key(struct genl_info *info, struct key_parse *k) memset(k, 0, sizeof(*k)); k->idx = -1; + k->type = -1; if (info->attrs[NL80211_ATTR_KEY]) err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k); @@ -433,7 +449,7 @@ nl80211_parse_connkeys(struct cfg80211_registered_device *rdev, } else if (parse.defmgmt) goto error; err = cfg80211_validate_key_settings(rdev, &parse.p, - parse.idx, NULL); + parse.idx, false, NULL); if (err) goto error; result->params[parse.idx].cipher = parse.p.cipher; @@ -516,6 +532,9 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags, NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN, dev->wiphy.max_scan_ie_len); + if (dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) + NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_IBSS_RSN); + NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES, sizeof(u32) * dev->wiphy.n_cipher_suites, dev->wiphy.cipher_suites); @@ -1446,7 +1465,8 @@ static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info) int err; struct net_device *dev = info->user_ptr[1]; u8 key_idx = 0; - u8 *mac_addr = NULL; + const u8 *mac_addr = NULL; + bool pairwise; struct get_key_cookie cookie = { .error = 0, }; @@ -1462,6 +1482,17 @@ static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info) if (info->attrs[NL80211_ATTR_MAC]) mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); + pairwise = !!mac_addr; + if (info->attrs[NL80211_ATTR_KEY_TYPE]) { + u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]); + if (kt >= NUM_NL80211_KEYTYPES) + return -EINVAL; + if (kt != NL80211_KEYTYPE_GROUP && + kt != NL80211_KEYTYPE_PAIRWISE) + return -EINVAL; + pairwise = kt == NL80211_KEYTYPE_PAIRWISE; + } + if (!rdev->ops->get_key) return -EOPNOTSUPP; @@ -1482,8 +1513,12 @@ static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info) if (mac_addr) NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr); - err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, mac_addr, - &cookie, get_key_callback); + if (pairwise && mac_addr && + !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)) + return -ENOENT; + + err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, pairwise, + mac_addr, &cookie, get_key_callback); if (err) goto free_msg; @@ -1553,7 +1588,7 @@ static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info) int err; struct net_device *dev = info->user_ptr[1]; struct key_parse key; - u8 *mac_addr = NULL; + const u8 *mac_addr = NULL; err = nl80211_parse_key(info, &key); if (err) @@ -1565,16 +1600,31 @@ static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info) if (info->attrs[NL80211_ATTR_MAC]) mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); + if (key.type == -1) { + if (mac_addr) + key.type = NL80211_KEYTYPE_PAIRWISE; + else + key.type = NL80211_KEYTYPE_GROUP; + } + + /* for now */ + if (key.type != NL80211_KEYTYPE_PAIRWISE && + key.type != NL80211_KEYTYPE_GROUP) + return -EINVAL; + if (!rdev->ops->add_key) return -EOPNOTSUPP; - if (cfg80211_validate_key_settings(rdev, &key.p, key.idx, mac_addr)) + if (cfg80211_validate_key_settings(rdev, &key.p, key.idx, + key.type == NL80211_KEYTYPE_PAIRWISE, + mac_addr)) return -EINVAL; wdev_lock(dev->ieee80211_ptr); err = nl80211_key_allowed(dev->ieee80211_ptr); if (!err) err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx, + key.type == NL80211_KEYTYPE_PAIRWISE, mac_addr, &key.p); wdev_unlock(dev->ieee80211_ptr); @@ -1596,13 +1646,32 @@ static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info) if (info->attrs[NL80211_ATTR_MAC]) mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); + if (key.type == -1) { + if (mac_addr) + key.type = NL80211_KEYTYPE_PAIRWISE; + else + key.type = NL80211_KEYTYPE_GROUP; + } + + /* for now */ + if (key.type != NL80211_KEYTYPE_PAIRWISE && + key.type != NL80211_KEYTYPE_GROUP) + return -EINVAL; + if (!rdev->ops->del_key) return -EOPNOTSUPP; wdev_lock(dev->ieee80211_ptr); err = nl80211_key_allowed(dev->ieee80211_ptr); + + if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr && + !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)) + err = -ENOENT; + if (!err) - err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx, mac_addr); + err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx, + key.type == NL80211_KEYTYPE_PAIRWISE, + mac_addr); #ifdef CONFIG_CFG80211_WEXT if (!err) { @@ -3212,6 +3281,8 @@ static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info) return err; if (key.idx >= 0) { + if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP) + return -EINVAL; if (!key.p.key || !key.p.key_len) return -EINVAL; if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 || diff --git a/net/wireless/sme.c b/net/wireless/sme.c index f161b984454..e17b0bee6bd 100644 --- a/net/wireless/sme.c +++ b/net/wireless/sme.c @@ -698,7 +698,7 @@ void __cfg80211_disconnected(struct net_device *dev, const u8 *ie, */ if (rdev->ops->del_key) for (i = 0; i < 6; i++) - rdev->ops->del_key(wdev->wiphy, dev, i, NULL); + rdev->ops->del_key(wdev->wiphy, dev, i, false, NULL); #ifdef CONFIG_CFG80211_WEXT memset(&wrqu, 0, sizeof(wrqu)); diff --git a/net/wireless/util.c b/net/wireless/util.c index fb5448f7d55..76120aeda57 100644 --- a/net/wireless/util.c +++ b/net/wireless/util.c @@ -144,19 +144,25 @@ void ieee80211_set_bitrate_flags(struct wiphy *wiphy) int cfg80211_validate_key_settings(struct cfg80211_registered_device *rdev, struct key_params *params, int key_idx, - const u8 *mac_addr) + bool pairwise, const u8 *mac_addr) { int i; if (key_idx > 5) return -EINVAL; + if (!pairwise && mac_addr && !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)) + return -EINVAL; + + if (pairwise && !mac_addr) + return -EINVAL; + /* * Disallow pairwise keys with non-zero index unless it's WEP * (because current deployments use pairwise WEP keys with * non-zero indizes but 802.11i clearly specifies to use zero) */ - if (mac_addr && key_idx && + if (pairwise && key_idx && params->cipher != WLAN_CIPHER_SUITE_WEP40 && params->cipher != WLAN_CIPHER_SUITE_WEP104) return -EINVAL; @@ -677,7 +683,7 @@ void cfg80211_upload_connect_keys(struct wireless_dev *wdev) for (i = 0; i < 6; i++) { if (!wdev->connect_keys->params[i].cipher) continue; - if (rdev->ops->add_key(wdev->wiphy, dev, i, NULL, + if (rdev->ops->add_key(wdev->wiphy, dev, i, false, NULL, &wdev->connect_keys->params[i])) { printk(KERN_ERR "%s: failed to set key %d\n", dev->name, i); diff --git a/net/wireless/wext-compat.c b/net/wireless/wext-compat.c index 7e5c3a45f81..6002265289c 100644 --- a/net/wireless/wext-compat.c +++ b/net/wireless/wext-compat.c @@ -432,14 +432,17 @@ int cfg80211_wext_giwretry(struct net_device *dev, EXPORT_SYMBOL_GPL(cfg80211_wext_giwretry); static int __cfg80211_set_encryption(struct cfg80211_registered_device *rdev, - struct net_device *dev, const u8 *addr, - bool remove, bool tx_key, int idx, - struct key_params *params) + struct net_device *dev, bool pairwise, + const u8 *addr, bool remove, bool tx_key, + int idx, struct key_params *params) { struct wireless_dev *wdev = dev->ieee80211_ptr; int err, i; bool rejoin = false; + if (pairwise && !addr) + return -EINVAL; + if (!wdev->wext.keys) { wdev->wext.keys = kzalloc(sizeof(*wdev->wext.keys), GFP_KERNEL); @@ -478,7 +481,13 @@ static int __cfg80211_set_encryption(struct cfg80211_registered_device *rdev, __cfg80211_leave_ibss(rdev, wdev->netdev, true); rejoin = true; } - err = rdev->ops->del_key(&rdev->wiphy, dev, idx, addr); + + if (!pairwise && addr && + !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)) + err = -ENOENT; + else + err = rdev->ops->del_key(&rdev->wiphy, dev, idx, + pairwise, addr); } wdev->wext.connect.privacy = false; /* @@ -507,12 +516,13 @@ static int __cfg80211_set_encryption(struct cfg80211_registered_device *rdev, if (addr) tx_key = false; - if (cfg80211_validate_key_settings(rdev, params, idx, addr)) + if (cfg80211_validate_key_settings(rdev, params, idx, pairwise, addr)) return -EINVAL; err = 0; if (wdev->current_bss) - err = rdev->ops->add_key(&rdev->wiphy, dev, idx, addr, params); + err = rdev->ops->add_key(&rdev->wiphy, dev, idx, + pairwise, addr, params); if (err) return err; @@ -563,17 +573,17 @@ static int __cfg80211_set_encryption(struct cfg80211_registered_device *rdev, } static int cfg80211_set_encryption(struct cfg80211_registered_device *rdev, - struct net_device *dev, const u8 *addr, - bool remove, bool tx_key, int idx, - struct key_params *params) + struct net_device *dev, bool pairwise, + const u8 *addr, bool remove, bool tx_key, + int idx, struct key_params *params) { int err; /* devlist mutex needed for possible IBSS re-join */ mutex_lock(&rdev->devlist_mtx); wdev_lock(dev->ieee80211_ptr); - err = __cfg80211_set_encryption(rdev, dev, addr, remove, - tx_key, idx, params); + err = __cfg80211_set_encryption(rdev, dev, pairwise, addr, + remove, tx_key, idx, params); wdev_unlock(dev->ieee80211_ptr); mutex_unlock(&rdev->devlist_mtx); @@ -635,7 +645,7 @@ int cfg80211_wext_siwencode(struct net_device *dev, else if (!remove) return -EINVAL; - return cfg80211_set_encryption(rdev, dev, NULL, remove, + return cfg80211_set_encryption(rdev, dev, false, NULL, remove, wdev->wext.default_key == -1, idx, ¶ms); } @@ -725,7 +735,9 @@ int cfg80211_wext_siwencodeext(struct net_device *dev, } return cfg80211_set_encryption( - rdev, dev, addr, remove, + rdev, dev, + !(ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY), + addr, remove, ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY, idx, ¶ms); } -- cgit v1.2.3-70-g09d2