cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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svcsock.h (2214B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2/*
      3 * linux/include/linux/sunrpc/svcsock.h
      4 *
      5 * RPC server socket I/O.
      6 *
      7 * Copyright (C) 1995, 1996 Olaf Kirch <okir@monad.swb.de>
      8 */
      9
     10#ifndef SUNRPC_SVCSOCK_H
     11#define SUNRPC_SVCSOCK_H
     12
     13#include <linux/sunrpc/svc.h>
     14#include <linux/sunrpc/svc_xprt.h>
     15
     16/*
     17 * RPC server socket.
     18 */
     19struct svc_sock {
     20	struct svc_xprt		sk_xprt;
     21	struct socket *		sk_sock;	/* berkeley socket layer */
     22	struct sock *		sk_sk;		/* INET layer */
     23
     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 *);
     28
     29	/* private TCP part */
     30	/* On-the-wire fragment header: */
     31	__be32			sk_marker;
     32	/* As we receive a record, this includes the length received so
     33	 * far (including the fragment header): */
     34	u32			sk_tcplen;
     35	/* Total length of the data (not including fragment headers)
     36	 * received so far in the fragments making up this rpc: */
     37	u32			sk_datalen;
     38	/* Number of queued send requests */
     39	atomic_t		sk_sendqlen;
     40
     41	struct page *		sk_pages[RPCSVC_MAXPAGES];	/* received data */
     42};
     43
     44static inline u32 svc_sock_reclen(struct svc_sock *svsk)
     45{
     46	return be32_to_cpu(svsk->sk_marker) & RPC_FRAGMENT_SIZE_MASK;
     47}
     48
     49static inline u32 svc_sock_final_rec(struct svc_sock *svsk)
     50{
     51	return be32_to_cpu(svsk->sk_marker) & RPC_LAST_STREAM_FRAGMENT;
     52}
     53
     54/*
     55 * Function prototypes.
     56 */
     57void		svc_close_net(struct svc_serv *, struct net *);
     58int		svc_recv(struct svc_rqst *, long);
     59int		svc_send(struct svc_rqst *);
     60void		svc_drop(struct svc_rqst *);
     61void		svc_sock_update_bufs(struct svc_serv *serv);
     62bool		svc_alien_sock(struct net *net, int fd);
     63int		svc_addsock(struct svc_serv *serv, const int fd,
     64					char *name_return, const size_t len,
     65					const struct cred *cred);
     66void		svc_init_xprt_sock(void);
     67void		svc_cleanup_xprt_sock(void);
     68struct svc_xprt *svc_sock_create(struct svc_serv *serv, int prot);
     69void		svc_sock_destroy(struct svc_xprt *);
     70
     71/*
     72 * svc_makesock socket characteristics
     73 */
     74#define SVC_SOCK_DEFAULTS	(0U)
     75#define SVC_SOCK_ANONYMOUS	(1U << 0)	/* don't register with pmap */
     76#define SVC_SOCK_TEMPORARY	(1U << 1)	/* flag socket as temporary */
     77
     78#endif /* SUNRPC_SVCSOCK_H */