2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright (c) 2009, Sun Microsystems, Inc.
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38 * Definitions now shared between client and server RPC for backchannels.
40 #define MCALL_MSG_SIZE 24
42 void clnt_bck_svccall(void *, struct mbuf *, uint32_t);
43 enum clnt_stat clnt_bck_call(CLIENT *, struct rpc_callextra *, rpcproc_t,
44 struct mbuf *, struct mbuf **, struct timeval, SVCXPRT *);
47 * A pending RPC request which awaits a reply. Requests which have
48 * received their reply will have cr_xid set to zero and cr_mrep to
49 * the mbuf chain of the reply.
52 TAILQ_ENTRY(ct_request) cr_link;
53 uint32_t cr_xid; /* XID of request */
54 struct mbuf *cr_mrep; /* reply received by upcall */
55 int cr_error; /* any error from upcall */
56 char cr_verf[MAX_AUTH_BYTES]; /* reply verf */
59 TAILQ_HEAD(ct_request_list, ct_request);
63 struct sockaddr_storage rc_addr; /* server address */
64 struct netconfig* rc_nconf; /* network type */
65 rpcprog_t rc_prog; /* program number */
66 rpcvers_t rc_vers; /* version number */
69 struct timeval rc_timeout;
70 struct timeval rc_retry;
77 struct ucred *rc_ucred;
78 CLIENT* rc_client; /* underlying RPC client */
79 struct rpc_err rc_err;
85 int ct_threads; /* number of threads in clnt_vc_call */
86 bool_t ct_closing; /* TRUE if we are closing */
87 bool_t ct_closed; /* TRUE if we are closed */
88 struct socket *ct_socket; /* connection socket */
89 bool_t ct_closeit; /* close it on destroy */
90 struct timeval ct_wait; /* wait interval in milliseconds */
91 struct sockaddr_storage ct_addr; /* remote addr */
92 struct rpc_err ct_error;
94 char ct_mcallc[MCALL_MSG_SIZE]; /* marshalled callmsg */
95 size_t ct_mpos; /* pos after marshal */
96 const char *ct_waitchan;
98 struct mbuf *ct_record; /* current reply record */
99 size_t ct_record_resid; /* how much left of reply to read */
100 bool_t ct_record_eor; /* true if reading last fragment */
101 struct ct_request_list ct_pending;
102 int ct_upcallrefs; /* Ref cnt of upcalls in prog. */
103 SVCXPRT *ct_backchannelxprt; /* xprt for backchannel */
106 struct cf_conn { /* kept in xprt->xp_p1 for actual connection */
107 enum xprt_stat strm_stat;
108 struct mbuf *mpending; /* unparsed data read from the socket */
109 struct mbuf *mreq; /* current record being built from mpending */
110 uint32_t resid; /* number of bytes needed for fragment */
111 bool_t eor; /* reading last fragment of current record */
116 #endif /* _RPC_KRPC_H_ */