1 /* SPDX-License-Identifier: GPL-2.0 */
3 * linux/include/linux/sunrpc/svcsock.h
5 * RPC server socket I/O.
7 * Copyright (C) 1995, 1996 Olaf Kirch <okir@monad.swb.de>
10 #ifndef SUNRPC_SVCSOCK_H
11 #define SUNRPC_SVCSOCK_H
13 #include <linux/sunrpc/svc.h>
14 #include <linux/sunrpc/svc_xprt.h>
20 struct svc_xprt sk_xprt;
21 struct socket * sk_sock; /* berkeley socket layer */
22 struct sock * sk_sk; /* INET layer */
24 /* We keep the old state_change and data_ready CB's here */
25 void (*sk_ostate)(struct sock *);
26 void (*sk_odata)(struct sock *);
27 void (*sk_owspace)(struct sock *);
29 /* private TCP part */
30 /* On-the-wire fragment header: */
32 /* As we receive a record, this includes the length received so
33 * far (including the fragment header): */
35 /* Total length of the data (not including fragment headers)
36 * received so far in the fragments making up this rpc: */
38 /* Number of queued send requests */
41 struct completion sk_handshake_done;
43 struct page * sk_pages[RPCSVC_MAXPAGES]; /* received data */
46 static inline u32 svc_sock_reclen(struct svc_sock *svsk)
48 return be32_to_cpu(svsk->sk_marker) & RPC_FRAGMENT_SIZE_MASK;
51 static inline u32 svc_sock_final_rec(struct svc_sock *svsk)
53 return be32_to_cpu(svsk->sk_marker) & RPC_LAST_STREAM_FRAGMENT;
57 * Function prototypes.
59 void svc_close_net(struct svc_serv *, struct net *);
60 int svc_recv(struct svc_rqst *, long);
61 void svc_send(struct svc_rqst *rqstp);
62 void svc_drop(struct svc_rqst *);
63 void svc_sock_update_bufs(struct svc_serv *serv);
64 bool svc_alien_sock(struct net *net, int fd);
65 int svc_addsock(struct svc_serv *serv, const int fd,
66 char *name_return, const size_t len,
67 const struct cred *cred);
68 void svc_init_xprt_sock(void);
69 void svc_cleanup_xprt_sock(void);
70 struct svc_xprt *svc_sock_create(struct svc_serv *serv, int prot);
71 void svc_sock_destroy(struct svc_xprt *);
74 * svc_makesock socket characteristics
76 #define SVC_SOCK_DEFAULTS (0U)
77 #define SVC_SOCK_ANONYMOUS (1U << 0) /* don't register with pmap */
78 #define SVC_SOCK_TEMPORARY (1U << 1) /* flag socket as temporary */
80 #endif /* SUNRPC_SVCSOCK_H */