1 /* 2 * linux/include/linux/sunrpc/svcsock.h 3 * 4 * RPC server socket I/O. 5 * 6 * Copyright (C) 1995, 1996 Olaf Kirch <[email protected]> 7 */ 8 9 #ifndef SUNRPC_SVCSOCK_H 10 #define SUNRPC_SVCSOCK_H 11 12 #include <linux/sunrpc/svc.h> 13 14 /* 15 * RPC server socket. 16 */ 17 struct svc_sock { 18 struct list_head sk_ready; /* list of ready sockets */ 19 struct list_head sk_list; /* list of all sockets */ 20 struct socket * sk_sock; /* berkeley socket layer */ 21 struct sock * sk_sk; /* INET layer */ 22 23 struct svc_pool * sk_pool; /* current pool iff queued */ 24 struct svc_serv * sk_server; /* service for this socket */ 25 atomic_t sk_inuse; /* use count */ 26 unsigned long sk_flags; 27 #define SK_BUSY 0 /* enqueued/receiving */ 28 #define SK_CONN 1 /* conn pending */ 29 #define SK_CLOSE 2 /* dead or dying */ 30 #define SK_DATA 3 /* data pending */ 31 #define SK_TEMP 4 /* temp (TCP) socket */ 32 #define SK_DEAD 6 /* socket closed */ 33 #define SK_CHNGBUF 7 /* need to change snd/rcv buffer sizes */ 34 #define SK_DEFERRED 8 /* request on sk_deferred */ 35 #define SK_OLD 9 /* used for temp socket aging mark+sweep */ 36 #define SK_DETACHED 10 /* detached from tempsocks list */ 37 38 atomic_t sk_reserved; /* space on outq that is reserved */ 39 40 spinlock_t sk_defer_lock; /* protects sk_deferred */ 41 struct list_head sk_deferred; /* deferred requests that need to 42 * be revisted */ 43 struct mutex sk_mutex; /* to serialize sending data */ 44 45 int (*sk_recvfrom)(struct svc_rqst *rqstp); 46 int (*sk_sendto)(struct svc_rqst *rqstp); 47 48 /* We keep the old state_change and data_ready CB's here */ 49 void (*sk_ostate)(struct sock *); 50 void (*sk_odata)(struct sock *, int bytes); 51 void (*sk_owspace)(struct sock *); 52 53 /* private TCP part */ 54 int sk_reclen; /* length of record */ 55 int sk_tcplen; /* current read length */ 56 time_t sk_lastrecv; /* time of last received request */ 57 58 /* cache of various info for TCP sockets */ 59 void *sk_info_authunix; 60 61 struct sockaddr_storage sk_remote; /* remote peer's address */ 62 int sk_remotelen; /* length of address */ 63 }; 64 65 /* 66 * Function prototypes. 67 */ 68 int svc_makesock(struct svc_serv *, int, unsigned short, int flags); 69 void svc_force_close_socket(struct svc_sock *); 70 int svc_recv(struct svc_rqst *, long); 71 int svc_send(struct svc_rqst *); 72 void svc_drop(struct svc_rqst *); 73 void svc_sock_update_bufs(struct svc_serv *serv); 74 int svc_sock_names(char *buf, struct svc_serv *serv, char *toclose); 75 int svc_addsock(struct svc_serv *serv, 76 int fd, 77 char *name_return, 78 int *proto); 79 80 /* 81 * svc_makesock socket characteristics 82 */ 83 #define SVC_SOCK_DEFAULTS (0U) 84 #define SVC_SOCK_ANONYMOUS (1U << 0) /* don't register with pmap */ 85 #define SVC_SOCK_TEMPORARY (1U << 1) /* flag socket as temporary */ 86 87 #endif /* SUNRPC_SVCSOCK_H */ 88