1 /* SPDX-License-Identifier: GPL-2.0 */
3 * linux/include/linux/sunrpc/svcsock.h
5 * RPC server socket I/O.
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: */
39 struct page_frag_cache sk_frag_cache;
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_recv(struct svc_rqst *rqstp);
60 void svc_send(struct svc_rqst *rqstp);
61 int svc_addsock(struct svc_serv *serv, struct net *net,
62 const int fd, char *name_return, const size_t len,
63 const struct cred *cred);
64 void svc_init_xprt_sock(void);
65 void svc_cleanup_xprt_sock(void);
68 * svc_makesock socket characteristics
70 #define SVC_SOCK_DEFAULTS (0U)
71 #define SVC_SOCK_ANONYMOUS (1U << 0) /* don't register with pmap */
72 #define SVC_SOCK_TEMPORARY (1U << 1) /* flag socket as temporary */
74 #endif /* SUNRPC_SVCSOCK_H */