diff options
Diffstat (limited to 'include/net/inet_timewait_sock.h')
| -rw-r--r-- | include/net/inet_timewait_sock.h | 119 |
1 files changed, 64 insertions, 55 deletions
diff --git a/include/net/inet_timewait_sock.h b/include/net/inet_timewait_sock.h index 296547bfb0b..61474ea0215 100644 --- a/include/net/inet_timewait_sock.h +++ b/include/net/inet_timewait_sock.h @@ -16,8 +16,8 @@ #define _INET_TIMEWAIT_SOCK_ +#include <linux/kmemcheck.h> #include <linux/list.h> -#include <linux/module.h> #include <linux/timer.h> #include <linux/types.h> #include <linux/workqueue.h> @@ -27,7 +27,7 @@ #include <net/tcp_states.h> #include <net/timewait_sock.h> -#include <asm/atomic.h> +#include <linux/atomic.h> struct inet_hashinfo; @@ -58,6 +58,11 @@ struct inet_hashinfo; # define INET_TWDR_RECYCLE_TICK (12 + 2 - INET_TWDR_RECYCLE_SLOTS_LOG) #endif +static inline u32 inet_tw_time_stamp(void) +{ + return jiffies; +} + /* TIME_WAIT reaping mechanism. */ #define INET_TWDR_TWKILL_SLOTS 8 /* Please keep this a power of 2. */ @@ -83,15 +88,9 @@ struct inet_timewait_death_row { int sysctl_max_tw_buckets; }; -extern void inet_twdr_hangman(unsigned long data); -extern void inet_twdr_twkill_work(struct work_struct *work); -extern void inet_twdr_twcal_tick(unsigned long data); - -#if (BITS_PER_LONG == 64) -#define INET_TIMEWAIT_ADDRCMP_ALIGN_BYTES 8 -#else -#define INET_TIMEWAIT_ADDRCMP_ALIGN_BYTES 4 -#endif +void inet_twdr_hangman(unsigned long data); +void inet_twdr_twkill_work(struct work_struct *work); +void inet_twdr_twcal_tick(unsigned long data); struct inet_bind_bucket; @@ -110,43 +109,39 @@ struct inet_timewait_sock { #define tw_state __tw_common.skc_state #define tw_reuse __tw_common.skc_reuse #define tw_bound_dev_if __tw_common.skc_bound_dev_if -#define tw_node __tw_common.skc_node +#define tw_node __tw_common.skc_nulls_node #define tw_bind_node __tw_common.skc_bind_node #define tw_refcnt __tw_common.skc_refcnt #define tw_hash __tw_common.skc_hash #define tw_prot __tw_common.skc_prot #define tw_net __tw_common.skc_net +#define tw_daddr __tw_common.skc_daddr +#define tw_v6_daddr __tw_common.skc_v6_daddr +#define tw_rcv_saddr __tw_common.skc_rcv_saddr +#define tw_v6_rcv_saddr __tw_common.skc_v6_rcv_saddr +#define tw_dport __tw_common.skc_dport +#define tw_num __tw_common.skc_num + int tw_timeout; volatile unsigned char tw_substate; - /* 3 bits hole, try to pack */ unsigned char tw_rcv_wscale; + /* Socket demultiplex comparisons on incoming packets. */ - /* these five are in inet_sock */ + /* these three are in inet_sock */ __be16 tw_sport; - __be32 tw_daddr __attribute__((aligned(INET_TIMEWAIT_ADDRCMP_ALIGN_BYTES))); - __be32 tw_rcv_saddr; - __be16 tw_dport; - __u16 tw_num; + kmemcheck_bitfield_begin(flags); /* And these are ours. */ - __u8 tw_ipv6only:1; - /* 15 bits hole, try to pack */ - __u16 tw_ipv6_offset; - unsigned long tw_ttd; + unsigned int tw_ipv6only : 1, + tw_transparent : 1, + tw_flowlabel : 20, + tw_pad : 2, /* 2 bits hole */ + tw_tos : 8; + kmemcheck_bitfield_end(flags); + u32 tw_ttd; struct inet_bind_bucket *tw_tb; struct hlist_node tw_death_node; }; - -static inline void inet_twsk_add_node(struct inet_timewait_sock *tw, - struct hlist_head *list) -{ - hlist_add_head(&tw->tw_node, list); -} - -static inline void inet_twsk_add_bind_node(struct inet_timewait_sock *tw, - struct hlist_head *list) -{ - hlist_add_head(&tw->tw_bind_node, list); -} +#define tw_tclass tw_tos static inline int inet_twsk_dead_hashed(const struct inet_timewait_sock *tw) { @@ -174,37 +169,51 @@ static inline int inet_twsk_del_dead_node(struct inet_timewait_sock *tw) } #define inet_twsk_for_each(tw, node, head) \ - hlist_for_each_entry(tw, node, head, tw_node) + hlist_nulls_for_each_entry(tw, node, head, tw_node) -#define inet_twsk_for_each_inmate(tw, node, jail) \ - hlist_for_each_entry(tw, node, jail, tw_death_node) +#define inet_twsk_for_each_inmate(tw, jail) \ + hlist_for_each_entry(tw, jail, tw_death_node) -#define inet_twsk_for_each_inmate_safe(tw, node, safe, jail) \ - hlist_for_each_entry_safe(tw, node, safe, jail, tw_death_node) +#define inet_twsk_for_each_inmate_safe(tw, safe, jail) \ + hlist_for_each_entry_safe(tw, safe, jail, tw_death_node) static inline struct inet_timewait_sock *inet_twsk(const struct sock *sk) { return (struct inet_timewait_sock *)sk; } -static inline __be32 inet_rcv_saddr(const struct sock *sk) -{ - return likely(sk->sk_state != TCP_TIME_WAIT) ? - inet_sk(sk)->rcv_saddr : inet_twsk(sk)->tw_rcv_saddr; -} +void inet_twsk_free(struct inet_timewait_sock *tw); +void inet_twsk_put(struct inet_timewait_sock *tw); + +int inet_twsk_unhash(struct inet_timewait_sock *tw); + +int inet_twsk_bind_unhash(struct inet_timewait_sock *tw, + struct inet_hashinfo *hashinfo); -extern void inet_twsk_put(struct inet_timewait_sock *tw); +struct inet_timewait_sock *inet_twsk_alloc(const struct sock *sk, + const int state); -extern struct inet_timewait_sock *inet_twsk_alloc(const struct sock *sk, - const int state); +void __inet_twsk_hashdance(struct inet_timewait_sock *tw, struct sock *sk, + struct inet_hashinfo *hashinfo); -extern void __inet_twsk_hashdance(struct inet_timewait_sock *tw, - struct sock *sk, - struct inet_hashinfo *hashinfo); +void inet_twsk_schedule(struct inet_timewait_sock *tw, + struct inet_timewait_death_row *twdr, + const int timeo, const int timewait_len); +void inet_twsk_deschedule(struct inet_timewait_sock *tw, + struct inet_timewait_death_row *twdr); -extern void inet_twsk_schedule(struct inet_timewait_sock *tw, - struct inet_timewait_death_row *twdr, - const int timeo, const int timewait_len); -extern void inet_twsk_deschedule(struct inet_timewait_sock *tw, - struct inet_timewait_death_row *twdr); +void inet_twsk_purge(struct inet_hashinfo *hashinfo, + struct inet_timewait_death_row *twdr, int family); + +static inline +struct net *twsk_net(const struct inet_timewait_sock *twsk) +{ + return read_pnet(&twsk->tw_net); +} + +static inline +void twsk_net_set(struct inet_timewait_sock *twsk, struct net *net) +{ + write_pnet(&twsk->tw_net, net); +} #endif /* _INET_TIMEWAIT_SOCK_ */ |