X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=include%2Fnet%2Finet_connection_sock.h;h=03cffd9f64e3ee8413caf2d5f72368f00d5fbecb;hb=8d2f9e81169b8120cf2b4872930ae491b17c27b8;hp=a50f4a4b7b4b60586ec2f641b6ef3f6f55e59cb3;hpb=9f1d2604c71498579609b1532fedc5a89276bb00;p=safe%2Fjmp%2Flinux-2.6 diff --git a/include/net/inet_connection_sock.h b/include/net/inet_connection_sock.h index a50f4a4b..03cffd9 100644 --- a/include/net/inet_connection_sock.h +++ b/include/net/inet_connection_sock.h @@ -15,9 +15,12 @@ #ifndef _INET_CONNECTION_SOCK_H #define _INET_CONNECTION_SOCK_H -#include +#include #include #include +#include + +#include #include #define INET_CSK_DEBUG 1 @@ -26,7 +29,40 @@ #undef INET_CSK_CLEAR_TIMERS struct inet_bind_bucket; -struct inet_hashinfo; +struct tcp_congestion_ops; + +/* + * Pointers to address related TCP functions + * (i.e. things that depend on the address family) + */ +struct inet_connection_sock_af_ops { + int (*queue_xmit)(struct sk_buff *skb, int ipfragok); + void (*send_check)(struct sock *sk, int len, + struct sk_buff *skb); + int (*rebuild_header)(struct sock *sk); + int (*conn_request)(struct sock *sk, struct sk_buff *skb); + struct sock *(*syn_recv_sock)(struct sock *sk, struct sk_buff *skb, + struct request_sock *req, + struct dst_entry *dst); + int (*remember_stamp)(struct sock *sk); + u16 net_header_len; + u16 sockaddr_len; + int (*setsockopt)(struct sock *sk, int level, int optname, + char __user *optval, int optlen); + int (*getsockopt)(struct sock *sk, int level, int optname, + char __user *optval, int __user *optlen); +#ifdef CONFIG_COMPAT + int (*compat_setsockopt)(struct sock *sk, + int level, int optname, + char __user *optval, int optlen); + int (*compat_getsockopt)(struct sock *sk, + int level, int optname, + char __user *optval, int __user *optlen); +#endif + void (*addr2sockaddr)(struct sock *sk, struct sockaddr *); + int (*bind_conflict)(const struct sock *sk, + const struct inet_bind_bucket *tb); +}; /** inet_connection_sock - INET connection oriented sock * @@ -35,11 +71,18 @@ struct inet_hashinfo; * @icsk_timeout: Timeout * @icsk_retransmit_timer: Resend (no ack) * @icsk_rto: Retransmit timeout + * @icsk_pmtu_cookie Last pmtu seen by socket + * @icsk_ca_ops Pluggable congestion control hook + * @icsk_af_ops Operations which are AF_INET{4,6} specific + * @icsk_ca_state: Congestion control state * @icsk_retransmits: Number of unrecovered [RTO] timeouts * @icsk_pending: Scheduled timer event * @icsk_backoff: Backoff * @icsk_syn_retries: Number of allowed SYN (or equivalent) retries + * @icsk_probes_out: unanswered 0 window probes + * @icsk_ext_hdr_len: Network protocol overhead (IP/IPv6 options) * @icsk_ack: Delayed ACK control data + * @icsk_mtup; MTU probing control data */ struct inet_connection_sock { /* inet_sock has to be the first member! */ @@ -50,10 +93,17 @@ struct inet_connection_sock { struct timer_list icsk_retransmit_timer; struct timer_list icsk_delack_timer; __u32 icsk_rto; + __u32 icsk_pmtu_cookie; + const struct tcp_congestion_ops *icsk_ca_ops; + const struct inet_connection_sock_af_ops *icsk_af_ops; + unsigned int (*icsk_sync_mss)(struct sock *sk, u32 pmtu); + __u8 icsk_ca_state; __u8 icsk_retransmits; __u8 icsk_pending; __u8 icsk_backoff; __u8 icsk_syn_retries; + __u8 icsk_probes_out; + __u16 icsk_ext_hdr_len; struct { __u8 pending; /* ACK is pending */ __u8 quick; /* Scheduled number of quick acks */ @@ -65,6 +115,18 @@ struct inet_connection_sock { __u16 last_seg_size; /* Size of last incoming segment */ __u16 rcv_mss; /* MSS used for delayed ACK decisions */ } icsk_ack; + struct { + int enabled; + + /* Range of MTUs to search */ + int search_high; + int search_low; + + /* Information on the current probe. */ + int probe_size; + } icsk_mtup; + u32 icsk_ca_priv[16]; +#define ICSK_CA_PRIV_SIZE (16 * sizeof(u32)) }; #define ICSK_TIME_RETRANS 1 /* Retransmit timer */ @@ -77,14 +139,20 @@ static inline struct inet_connection_sock *inet_csk(const struct sock *sk) return (struct inet_connection_sock *)sk; } +static inline void *inet_csk_ca(const struct sock *sk) +{ + return (void *)inet_csk(sk)->icsk_ca_priv; +} + extern struct sock *inet_csk_clone(struct sock *sk, const struct request_sock *req, - const unsigned int __nocast priority); + const gfp_t priority); enum inet_csk_ack_state_t { ICSK_ACK_SCHED = 1, ICSK_ACK_TIMER = 2, - ICSK_ACK_PUSHED = 4 + ICSK_ACK_PUSHED = 4, + ICSK_ACK_PUSHED2 = 8 }; extern void inet_csk_init_xmit_timers(struct sock *sk, @@ -132,7 +200,7 @@ static inline void inet_csk_clear_xmit_timer(struct sock *sk, const int what) } #ifdef INET_CSK_DEBUG else { - pr_debug(inet_csk_timer_bug_msg); + pr_debug("%s", inet_csk_timer_bug_msg); } #endif } @@ -165,7 +233,7 @@ static inline void inet_csk_reset_xmit_timer(struct sock *sk, const int what, } #ifdef INET_CSK_DEBUG else { - pr_debug(inet_csk_timer_bug_msg); + pr_debug("%s", inet_csk_timer_bug_msg); } #endif } @@ -174,11 +242,12 @@ extern struct sock *inet_csk_accept(struct sock *sk, int flags, int *err); extern struct request_sock *inet_csk_search_req(const struct sock *sk, struct request_sock ***prevp, - const __u16 rport, - const __u32 raddr, - const __u32 laddr); -extern int inet_csk_get_port(struct inet_hashinfo *hashinfo, - struct sock *sk, unsigned short snum); + const __be16 rport, + const __be32 raddr, + const __be32 laddr); +extern int inet_csk_bind_conflict(const struct sock *sk, + const struct inet_bind_bucket *tb); +extern int inet_csk_get_port(struct sock *sk, unsigned short snum); extern struct dst_entry* inet_csk_route_req(struct sock *sk, const struct request_sock *req); @@ -192,7 +261,7 @@ static inline void inet_csk_reqsk_queue_add(struct sock *sk, extern void inet_csk_reqsk_queue_hash_add(struct sock *sk, struct request_sock *req, - const unsigned timeout); + unsigned long timeout); static inline void inet_csk_reqsk_queue_removed(struct sock *sk, struct request_sock *req) @@ -239,4 +308,29 @@ static inline void inet_csk_reqsk_queue_drop(struct sock *sk, reqsk_free(req); } +extern void inet_csk_reqsk_queue_prune(struct sock *parent, + const unsigned long interval, + const unsigned long timeout, + const unsigned long max_rto); + +extern void inet_csk_destroy_sock(struct sock *sk); + +/* + * LISTEN is a special case for poll.. + */ +static inline unsigned int inet_csk_listen_poll(const struct sock *sk) +{ + return !reqsk_queue_empty(&inet_csk(sk)->icsk_accept_queue) ? + (POLLIN | POLLRDNORM) : 0; +} + +extern int inet_csk_listen_start(struct sock *sk, const int nr_table_entries); +extern void inet_csk_listen_stop(struct sock *sk); + +extern void inet_csk_addr2sockaddr(struct sock *sk, struct sockaddr *uaddr); + +extern int inet_csk_compat_getsockopt(struct sock *sk, int level, int optname, + char __user *optval, int __user *optlen); +extern int inet_csk_compat_setsockopt(struct sock *sk, int level, int optname, + char __user *optval, int optlen); #endif /* _INET_CONNECTION_SOCK_H */