ad13bd3827
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4818 42af7a65-404d-4744-a932-0658087f49c3
2388 lines
70 KiB
C
2388 lines
70 KiB
C
/****************************************************************************
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* fs/nfs/rpc_clnt.c
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*
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* Copyright (C) 2012 Gregory Nutt. All rights reserved.
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* Copyright (C) 2012 Jose Pablo Rojas Vargas. All rights reserved.
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* Author: Jose Pablo Rojas Vargas <jrojas@nx-engineering.com>
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*
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* Leveraged from OpenBSD:
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*
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* Copyright (c) 2004 The Regents of the University of Michigan.
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* All rights reserved.
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*
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* Copyright (c) 2004 Weston Andros Adamson <muzzle@umich.edu>.
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* Copyright (c) 2004 Marius Aamodt Eriksen <marius@umich.edu>.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* Copyright (c) 1989, 1991, 1993, 1995 The Regents of the University of
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* California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by Rick Macklem at
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* The University of Guelph.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer. 2.
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* Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution. 3. All advertising
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* materials mentioning features or use of this software must display the
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* following acknowledgement: This product includes software developed by the
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* University of California, Berkeley and its contributors. 4. Neither the
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* name of the University nor the names of its contributors may be used to
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* endorse or promote products derived from this software without specific
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* prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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****************************************************************************/
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#ifndef __FS_NFS_NFS_SOCKET_H
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#define __FS_NFS_NFS_SOCKET_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <sys/socket.h>
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#include <queue.h>
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#include <time.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <debug.h>
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#include <nuttx/kmalloc.h>
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#include "xdr_subs.h"
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#include "nfs_proto.h"
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#include "rpc.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Estimate rto for an nfs rpc sent via. an unreliable datagram. Use the mean
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* and mean deviation of rtt for the appropriate type of rpc for the frequent
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* rpcs and a default for the others. The justification for doing "other"
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* this way is that these rpcs happen so infrequently that timer est. would
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* probably be stale. Also, since many of these rpcs are non-idempotent, a
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* conservative timeout is desired. getattr, lookup - A+2D read, write -
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* A+4D other - nm_timeo
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*/
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#define RPC_RTO(n, t) \
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((t) == 0 ? (n)->rc_timeo : \
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((t) < 3 ? \
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(((((n)->rc_srtt[t-1] + 3) >> 2) + (n)->rc_sdrtt[t-1] + 1) >> 1) : \
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((((n)->rc_srtt[t-1] + 7) >> 3) + (n)->rc_sdrtt[t-1] + 1)))
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#define RPC_SRTT(s,r) (r)->r_rpcclnt->rc_srtt[rpcclnt_proct((s),\
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(r)->r_procnum) - 1]
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#define RPC_SDRTT(s,r) (r)->r_rpcclnt->rc_sdrtt[rpcclnt_proct((s),\
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(r)->r_procnum) - 1]
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/* There is a congestion window for outstanding rpcs maintained per mount
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* point. The cwnd size is adjusted in roughly the way that: Van Jacobson,
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* Congestion avoidance and Control, In "Proceedings of SIGCOMM '88". ACM,
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* August 1988. describes for TCP. The cwnd size is chopped in half on a
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* retransmit timeout and incremented by 1/cwnd when each rpc reply is
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* received and a full cwnd of rpcs is in progress. (The sent count and cwnd
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* are scaled for integer arith.) Variants of "slow start" were tried and
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* were found to be too much of a performance hit (ave. rtt 3 times larger),
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* I suspect due to the large rtt that nfs rpcs have.
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*/
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#define RPC_CWNDSCALE 256
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#define RPC_MAXCWND (RPC_CWNDSCALE * 32)
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#define RPC_ERRSTR_ACCEPTED_SIZE 6
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#define RPC_ERRSTR_AUTH_SIZE 6
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/****************************************************************************
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* Public Data
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****************************************************************************/
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char *rpc_errstr_accepted[RPC_ERRSTR_ACCEPTED_SIZE] =
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{
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"", /* no good message... */
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"remote server hasn't exported program.",
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"remote server can't support version number.",
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"program can't support procedure.",
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"procedure can't decode params.",
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"remote error. remote side memory allocation failure?"
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};
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char *rpc_errstr_denied[2] =
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{
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"remote server doesnt support rpc version 2!",
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"remote server authentication error."
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};
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char *rpc_errstr_auth[RPC_ERRSTR_AUTH_SIZE] =
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{
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"",
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"auth error: bad credential (seal broken).",
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"auth error: client must begin new session.",
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"auth error: bad verifier (seal broken).",
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"auth error: verifier expired or replayed.",
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"auth error: rejected for security reasons.",
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};
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/****************************************************************************
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* Private Data
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****************************************************************************/
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//static int rpcclnt_backoff[8] = { 2, 4, 8, 16, 32, 64, 128, 256, };
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/* Static data, mostly RPC constants in XDR form */
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static uint32_t rpc_reply;
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static uint32_t rpc_call;
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static uint32_t rpc_vers;
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static uint32_t rpc_msgdenied;
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static uint32_t rpc_mismatch;
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static uint32_t rpc_auth_unix;
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static uint32_t rpc_msgaccepted;
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static uint32_t rpc_autherr;
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static uint32_t rpc_auth_null;
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static uint32_t rpcclnt_xid = 0;
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static uint32_t rpcclnt_xid_touched = 0;
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int rpcclnt_ticks;
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struct rpcstats rpcstats;
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//struct rpc_call *callmgs;
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//struct rpc_reply *replymsg;
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/* Queue head for rpctask's */
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static dq_queue_t rpctask_q;
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//struct callout_handle rpcclnt_timer_handle;
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/****************************************************************************
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* Private Function Prototypes
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****************************************************************************/
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static int rpcclnt_send(struct socket *, struct sockaddr *, int, int, void *,
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struct rpctask *);
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static int rpcclnt_receive(struct rpctask *, struct sockaddr *, int, int,
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void *, size_t);//, struct rpc_call *);
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static int rpcclnt_reply(struct rpctask *, int, int, void *, size_t);
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#ifdef CONFIG_NFS_TCPIP
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static int rpcclnt_sndlock(int *, struct rpctask *);
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static void rpcclnt_sndunlock(int *);
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static int rpcclnt_rcvlock(struct rpctask *);
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static void rpcclnt_rcvunlock(int *);
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static int rpcclnt_sigintr(struct rpcclnt *, struct rpctask *, cthread_t *);
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#endif
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#ifdef COMP
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static void rpcclnt_softterm(struct rpctask *task);
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static void rpcclnt_timer(void *, struct rpc_call *);
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#endif
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static uint32_t rpcclnt_proct(struct rpcclnt *, uint32_t);
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static int rpcclnt_buildheader(struct rpcclnt *, int, int, int, struct xidr *, FAR const void *,
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void *);
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/* This is the nfs send routine. For connection based socket types, it must
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* be called with an nfs_sndlock() on the socket. "rep == NULL" indicates
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* that it has been called from a server. For the client side: - return EINTR
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* if the RPC is terminated, 0 otherwise - set TASK_MUSTRESEND if the send fails
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* for any reason - do any cleanup required by recoverable socket errors
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* (???) For the server side: - return EINTR or ERESTART if interrupted by a
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* signal - return EPIPE if a connection is lost for connection based sockets
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* (TCP...) - do any cleanup required by recoverable socket errors (???)
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*/
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static int
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rpcclnt_send(struct socket *so, struct sockaddr *nam, int procid, int prog,
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void *call, struct rpctask *rep)
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{
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struct sockaddr *sendnam;
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int error = ESRCH;
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#ifdef CONFIG_NFS_TCPIP
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int soflags;
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#endif
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int flags;
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if (rep != NULL)
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{
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if (rep->r_flags & TASK_SOFTTERM)
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{
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return EINTR;
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}
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if ((so = rep->r_rpcclnt->rc_so) == NULL)
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{
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rep->r_flags |= TASK_MUSTRESEND;
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return 0;
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}
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rep->r_flags &= ~TASK_MUSTRESEND;
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#ifdef CONFIG_NFS_TCPIP
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soflags = rep->r_rpcclnt->rc_soflags;
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#endif
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}
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#ifdef CONFIG_NFS_TCPIP
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else
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{
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soflags = so->s_flags;
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}
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if ((soflags & PR_CONNREQUIRED))
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{
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sendnam = NULL;
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{
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else
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#endif
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{
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sendnam = nam;
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}
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if (so->s_type == SOCK_SEQPACKET)
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{
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flags = MSG_EOR;
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}
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else
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{
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flags = 0;
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}
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if (prog == PMAPPROG)
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{
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if (procid == PMAPPROC_GETPORT)
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{
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struct rpc_call_pmap *callmsg = (struct rpc_call_pmap *)call;
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error = psock_sendto(so, callmsg, sizeof(*callmsg), flags,
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sendnam, sizeof(*sendnam));
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}
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else if (procid == PMAPPROC_UNSET)
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{
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struct rpc_call_pmap *callmsg = (struct rpc_call_pmap *)call;
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error = psock_sendto(so, callmsg, sizeof(*callmsg), flags,
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sendnam, sizeof(*sendnam));
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}
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}
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else if (prog == RPCPROG_MNT)
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{
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if (procid == RPCMNT_UMOUNT)
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{
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struct rpc_call_mount *callmsg = (struct rpc_call_mount *)call;
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error = psock_sendto(so, callmsg, sizeof(*callmsg), flags,
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sendnam, sizeof(*sendnam));
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}
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else if (procid == RPCMNT_MOUNT)
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{
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struct rpc_call_mount *callmsg = (struct rpc_call_mount *)call;
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error = psock_sendto(so, callmsg, sizeof(*callmsg), flags,
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sendnam, sizeof(*sendnam));
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}
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}
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else if (prog == NFS_PROG)
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{
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switch (procid)
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{
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case NFSPROC_CREATE:
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{
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struct rpc_call_create *callmsg = (struct rpc_call_create *)call;
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error = psock_sendto(so, callmsg, sizeof(*callmsg), flags,
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sendnam, sizeof(*sendnam));
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}
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break;
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case NFSPROC_READ:
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{
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struct rpc_call_read *callmsg = (struct rpc_call_read *)call;
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error = psock_sendto(so, callmsg, sizeof(*callmsg), flags,
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sendnam, sizeof(*sendnam));
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}
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break;
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case NFSPROC_WRITE:
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{
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struct rpc_call_write *callmsg = (struct rpc_call_write *)call;
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error = psock_sendto(so, callmsg, sizeof(*callmsg), flags,
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sendnam, sizeof(*sendnam));
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}
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break;
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case NFSPROC_READDIR:
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{
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struct rpc_call_readdir *callmsg = (struct rpc_call_readdir *)call;
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error = psock_sendto(so, callmsg, sizeof(*callmsg), flags,
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sendnam, sizeof(*sendnam));
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}
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break;
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case NFSPROC_FSSTAT:
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{
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struct rpc_call_fs *callmsg = (struct rpc_call_fs *)call;
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error = psock_sendto(so, callmsg, sizeof(*callmsg), flags,
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sendnam, sizeof(*sendnam));
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}
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break;
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case NFSPROC_GETATTR:
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{
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struct rpc_call_fs *callmsg = (struct rpc_call_fs *)call;
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error = psock_sendto(so, callmsg, sizeof(*callmsg), flags,
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sendnam, sizeof(*sendnam));
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}
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break;
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case NFSPROC_REMOVE:
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{
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struct rpc_call_remove *callmsg = (struct rpc_call_remove *)call;
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error = psock_sendto(so, callmsg, sizeof(*callmsg), flags,
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sendnam, sizeof(*sendnam));
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}
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break;
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case NFSPROC_MKDIR:
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{
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struct rpc_call_mkdir *callmsg = (struct rpc_call_mkdir *)call;
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error = psock_sendto(so, callmsg, sizeof(*callmsg), flags,
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sendnam, sizeof(*sendnam));
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}
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break;
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case NFSPROC_RMDIR:
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{
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struct rpc_call_rmdir *callmsg = (struct rpc_call_rmdir *)call;
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error = psock_sendto(so, callmsg, sizeof(*callmsg), flags,
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sendnam, sizeof(*sendnam));
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}
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break;
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case NFSPROC_RENAME:
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{
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struct rpc_call_rename *callmsg = (struct rpc_call_rename *)call;
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error = psock_sendto(so, callmsg, sizeof(*callmsg), flags,
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sendnam, sizeof(*sendnam));
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}
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break;
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case NFSPROC_FSINFO:
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{
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struct rpc_call_fs *callmsg = (struct rpc_call_fs *)call;
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error = psock_sendto(so, callmsg, sizeof(*callmsg), flags,
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sendnam, sizeof(*sendnam));
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}
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break;
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default:
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break;
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}
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}
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|
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if (error < 0)
|
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{
|
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if (rep != NULL)
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{
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fdbg("rpc send error %d for service %s\n", error,
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rep->r_rpcclnt->rc_prog->prog_name);
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|
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/* Deal with errors for the client side. */
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|
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if (rep->r_flags & TASK_SOFTTERM)
|
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{
|
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error = EINTR;
|
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}
|
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else
|
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{
|
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rep->r_flags |= TASK_MUSTRESEND;
|
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}
|
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}
|
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else
|
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{
|
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fdbg("rpc service send error %d\n", error);
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}
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|
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return error;
|
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}
|
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else
|
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{
|
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return 0;
|
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}
|
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}
|
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|
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/* Receive a Sun RPC Request/Reply. For SOCK_DGRAM, the work is all
|
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* done by psock_recvfrom(). For SOCK_STREAM, first get the
|
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* Record Mark to find out how much more there is to get. We must
|
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* lock the socket against other receivers until we have an entire
|
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* rpc request/reply.
|
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*/
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|
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static int rpcclnt_receive(struct rpctask *rep, struct sockaddr *aname,
|
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int proc, int program, void *reply, size_t len)
|
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//, struct rpc_call *call)
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{
|
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struct socket *so;
|
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ssize_t nbytes;
|
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#ifdef CONFIG_NFS_TCPIP
|
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uint32_t len;
|
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int sotype;
|
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#endif
|
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int error = 0;
|
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int errval;
|
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|
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#ifdef CONFIG_NFS_TCPIP
|
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/* Set up arguments for psock_recvfrom() */
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sotype = rep->r_rpcclnt->rc_sotype;
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|
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/* For reliable protocols, lock against other senders/receivers in
|
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* case a reconnect is necessary. For SOCK_STREAM, first get the
|
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* Record Mark to find out how much more there is to get. We must
|
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* lock the socket against other receivers until we have an entire
|
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* rpc request/reply.
|
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*/
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|
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if (sotype != SOCK_DGRAM)
|
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{
|
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error = rpcclnt_sndlock(&rep->r_rpcclnt->rc_flag, rep);
|
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if (error != 0)
|
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{
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fdbg("ERROR: rpcclnt_sndlock failed: %d\n", error);
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return error;
|
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}
|
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|
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tryagain:
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|
|
|
/* Check for fatal errors and resending request.
|
|
*
|
|
* Ugh: If a reconnect attempt just happened, rc_so would
|
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* have changed. NULL indicates a failed attempt that has
|
|
* essentially shut down this mount point.
|
|
*/
|
|
|
|
if (rep->r_flags & TASK_SOFTTERM)
|
|
{
|
|
rpcclnt_sndunlock(&rep->r_rpcclnt->rc_flag);
|
|
return EINTR;
|
|
}
|
|
|
|
so = rep->r_rpcclnt->rc_so;
|
|
if (so == NULL)
|
|
{
|
|
error = rpcclnt_reconnect(rep);
|
|
if (error)
|
|
{
|
|
rpcclnt_sndunlock(&rep->r_rpcclnt->rc_flag);
|
|
return error;
|
|
}
|
|
|
|
goto tryagain;
|
|
}
|
|
while (rep->r_flags & TASK_MUSTRESEND)
|
|
{
|
|
rpcstats.rpcretries++;
|
|
error = rpcclnt_send(so, rep->r_rpcclnt->rc_name, call, rep);
|
|
if (error)
|
|
{
|
|
if (error == EINTR || error == ERESTART ||
|
|
(error = rpcclnt_reconnect(rep)) != 0)
|
|
{
|
|
rpcclnt_sndunlock(&rep->r_rpcclnt->rc_flag);
|
|
return error;
|
|
}
|
|
|
|
goto tryagain;
|
|
}
|
|
}
|
|
|
|
rpcclnt_sndunlock(&rep->r_rpcclnt->rc_flag);
|
|
if (sotype == SOCK_STREAM)
|
|
{
|
|
errval = 0;
|
|
do
|
|
{
|
|
socklen_t fromlen = sizeof(*rep->r_rpcclnt->rc_name)
|
|
nbytes = psock_recvfrom(so, reply, len,
|
|
MSG_WAITALL, rep->r_rpcclnt->rc_name,
|
|
&fromlen);
|
|
if (nbytes < 0)
|
|
{
|
|
errval = errno;
|
|
fdbg("ERROR: psock_recvfrom returned %d\n", errval);
|
|
|
|
if (errval == EWOULDBLOCK && rep &&
|
|
(rep->r_flags & TASK_SOFTTERM) != 0)
|
|
{
|
|
return EINTR;
|
|
}
|
|
}
|
|
}
|
|
while (errval == EWOULDBLOCK);
|
|
|
|
if (nbytes < 0)
|
|
{
|
|
error = errval;
|
|
}
|
|
else if (nbytes < len)
|
|
{
|
|
fdbg("ERROR: Short receive from rpc server %s\n",
|
|
rep->r_rpcclnt->rc_prog->prog_name);
|
|
fvdbg(" Expected %d bytes, received %d bytes\n",
|
|
len, nbytes);
|
|
error = EPIPE;
|
|
}
|
|
else
|
|
{
|
|
error = 0;
|
|
}
|
|
|
|
#warning "What is len? This logic is not right!"
|
|
len = ntohl(len) & ~0x80000000;
|
|
|
|
/* This is SERIOUS! We are out of sync with the
|
|
* sender and forcing a disconnect/reconnect is all I
|
|
* can do.
|
|
*/
|
|
|
|
else if (len > RPC_MAXPACKET)
|
|
{
|
|
fdbg("ERROR %s (%d) from rpc server %s\n",
|
|
"impossible packet length",
|
|
len, rep->r_rpcclnt->rc_prog->prog_name);
|
|
error = EFBIG;
|
|
goto errout;
|
|
}
|
|
|
|
errval = 0
|
|
do
|
|
{
|
|
socklen_t fromlen = sizeof(*rep->r_rpcclnt->rc_name);
|
|
nbytes = psock_recvfrom(so, reply, sizeof(*reply),
|
|
MSG_WAITALL, rep->r_rpcclnt->rc_name,
|
|
&fromlen);
|
|
if (nbytes < 0)
|
|
{
|
|
errval = errno;
|
|
fdbg("ERROR: psock_recvfrom failed: %d\n", errval);
|
|
}
|
|
}
|
|
while (errval == EWOULDBLOCK || errval == EINTR || errval == ERESTART);
|
|
|
|
if (nbytes < 0)
|
|
{
|
|
error = errval;
|
|
goto errout;
|
|
}
|
|
else if (nbytes < len)
|
|
{
|
|
fdbg("ERROR: Short receive from rpc server %s\n",
|
|
rep->r_rpcclnt->rc_prog->prog_name);
|
|
fvdbg(" Expected %d bytes, received %d bytes\n",
|
|
len, nbytes);
|
|
error = EPIPE;
|
|
}
|
|
else
|
|
{
|
|
error = 0;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* NB: Since uio_resid is big, MSG_WAITALL is ignored
|
|
* and psock_recvfrom() will return when it has either a
|
|
* control msg or a data msg. We have no use for
|
|
* control msg., but must grab them and then throw
|
|
* them away so we know what is going on.
|
|
*/
|
|
|
|
errval = 0;
|
|
do
|
|
{
|
|
socklen_t fromlen = sizeof(*rep->r_rpcclnt->rc_name);
|
|
nbytes = psock_recvfrom(so, reply, sizeof(*reply), 0,
|
|
rep->r_rpcclnt->rc_name, &fromlen);
|
|
if (nbytes < 0)
|
|
{
|
|
errval = errno;
|
|
fdbg("ERROR: psock_recvfrom failed: %d\n", errval);
|
|
|
|
if (errval == EWOULDBLOCK && rep)
|
|
{
|
|
if (rep->r_flags & TASK_SOFTTERM)
|
|
{
|
|
return EINTR;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
while (errval == EWOULDBLOCK || nbytes == 0);
|
|
|
|
if (nbytes < 0)
|
|
{
|
|
error = errval;
|
|
goto errout;
|
|
}
|
|
else if (nbytes < len)
|
|
{
|
|
fdbg("ERROR: Short receive from rpc server %s\n",
|
|
rep->r_rpcclnt->rc_prog->prog_name);
|
|
fvdbg(" Expected %d bytes, received %d bytes\n",
|
|
len, nbytes);
|
|
error = EPIPE;
|
|
}
|
|
else
|
|
{
|
|
error = 0;
|
|
}
|
|
}
|
|
|
|
errout:
|
|
if (error != 0 && error != EINTR && error != ERESTART)
|
|
{
|
|
if (error != EPIPE)
|
|
{
|
|
fdbg("ERROR: Receive error %d from rpc server %s\n",
|
|
error, rep->r_rpcclnt->rc_prog->prog_name);
|
|
}
|
|
|
|
error = rpcclnt_sndlock(&rep->r_rpcclnt->rc_flag, rep);
|
|
if (error == 0)
|
|
{
|
|
error = rpcclnt_reconnect(rep);
|
|
}
|
|
|
|
if (error == 0)
|
|
{
|
|
goto tryagain;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
#endif
|
|
{
|
|
so = rep->r_rpcclnt->rc_so;
|
|
if (so == NULL)
|
|
{
|
|
return EACCES;
|
|
}
|
|
|
|
socklen_t fromlen = sizeof(struct sockaddr);
|
|
nbytes = psock_recvfrom(so, reply, len, 0, aname, &fromlen);
|
|
if (nbytes < 0)
|
|
{
|
|
errval = errno;
|
|
fdbg("ERROR: psock_recvfrom failed: %d\n", errval);
|
|
error = errval;
|
|
}
|
|
}
|
|
|
|
fvdbg("Returning %d\n", error);
|
|
return error;
|
|
}
|
|
|
|
/* Implement receipt of reply on a socket. We must search through the list of
|
|
* received datagrams matching them with outstanding requests using the xid,
|
|
* until ours is found.
|
|
*/
|
|
|
|
static int rpcclnt_reply(struct rpctask *myrep, int procid, int prog,
|
|
void *reply, size_t len)
|
|
{
|
|
struct rpctask *rep;
|
|
struct rpc_reply_header replyheader;
|
|
struct rpcclnt *rpc = myrep->r_rpcclnt;
|
|
int32_t t1;
|
|
uint32_t rxid;
|
|
int error;
|
|
int count;
|
|
|
|
/* Loop around until we get our own reply */
|
|
|
|
for (count = 0; count < 9; count++)
|
|
{
|
|
/* Lock against other receivers so that I don't get stuck in
|
|
* sbwait() after someone else has received my reply for me.
|
|
* Also necessary for connection based protocols to avoid
|
|
* race conditions during a reconnect.
|
|
*/
|
|
|
|
#ifdef CONFIG_NFS_TCPIP
|
|
error = rpcclnt_rcvlock(myrep);
|
|
if (error)
|
|
{
|
|
return error;
|
|
}
|
|
#endif
|
|
/* Get the next Rpc reply off the socket */
|
|
|
|
error = rpcclnt_receive(myrep, rpc->rc_name, procid, prog, reply, len);
|
|
#ifdef CONFIG_NFS_TCPIP
|
|
rpcclnt_rcvunlock(&rpc->rc_flag);
|
|
#endif
|
|
|
|
if (error != 0)
|
|
{
|
|
/* Ignore routing errors on connectionless
|
|
* protocols??
|
|
*/
|
|
|
|
if (RPCIGNORE_SOERROR(rpc->rc_soflags, error))
|
|
{
|
|
if (myrep->r_flags & TASK_GETONEREP)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
fdbg("ignoring routing error on connectionless protocol\n");
|
|
continue;
|
|
}
|
|
return error;
|
|
}
|
|
|
|
bcopy(reply, &replyheader, sizeof(struct rpc_reply_header));
|
|
|
|
/* Get the xid and check that it is an rpc replysvr */
|
|
|
|
rxid = replyheader.rp_xid;
|
|
if (replyheader.rp_direction != rpc_reply)
|
|
{
|
|
rpcstats.rpcinvalid++;
|
|
if (myrep->r_flags & TASK_GETONEREP)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
continue;
|
|
}
|
|
|
|
/* Loop through the request list to match up the reply Iff no
|
|
* match, just drop the datagram
|
|
*/
|
|
|
|
for (rep = (struct rpctask *)rpctask_q.head; rep != NULL;
|
|
rep = (struct rpctask *)rep->r_chain.flink)
|
|
{
|
|
if (rxid == rep->r_xid)
|
|
{
|
|
/* Update congestion window. Do the additive
|
|
* increase of one rpc/rtt.
|
|
*/
|
|
|
|
if (rpc->rc_cwnd <= rpc->rc_sent)
|
|
{
|
|
rpc->rc_cwnd +=
|
|
(RPC_CWNDSCALE * RPC_CWNDSCALE + (rpc->rc_cwnd >> 1)) / rpc->rc_cwnd;
|
|
|
|
if (rpc->rc_cwnd > RPC_MAXCWND)
|
|
{
|
|
rpc->rc_cwnd = RPC_MAXCWND;
|
|
}
|
|
}
|
|
|
|
rep->r_flags &= ~TASK_SENT;
|
|
rpc->rc_sent -= RPC_CWNDSCALE;
|
|
|
|
/* Update rtt using a gain of 0.125 on the
|
|
* mean and a gain of 0.25 on the deviation.
|
|
*/
|
|
|
|
if (rep->r_flags & TASK_TIMING)
|
|
{
|
|
/* Since the timer resolution of
|
|
* NFS_HZ is so course, it can often
|
|
* result in r_rtt == 0. Since r_rtt
|
|
* == N means that the actual rtt is
|
|
* between N+dt and N+2-dt ticks, add
|
|
* 1.
|
|
*/
|
|
|
|
t1 = rep->r_rtt + 1;
|
|
t1 -= (RPC_SRTT(rpc, rep) >> 3);
|
|
RPC_SRTT(rpc, rep) += t1;
|
|
if (t1 < 0)
|
|
{
|
|
t1 = -t1;
|
|
}
|
|
|
|
t1 -= (RPC_SDRTT(rpc, rep) >> 2);
|
|
RPC_SDRTT(rpc, rep) += t1;
|
|
}
|
|
|
|
rpc->rc_timeouts = 0;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* If not matched to a request, drop it. If it's mine, get
|
|
* out.
|
|
*/
|
|
|
|
if (rep == 0)
|
|
{
|
|
fdbg("rpc reply not matched\n");
|
|
rpcstats.rpcunexpected++;
|
|
return ENOMSG;
|
|
}
|
|
else if (rep == myrep)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
if (myrep->r_flags & TASK_GETONEREP)
|
|
{
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
return ENONET;
|
|
}
|
|
|
|
#ifdef CONFIG_NFS_TCPIP
|
|
static int
|
|
rpcclnt_sigintr( struct rpcclnt *rpc, struct rpctask *task, cthread_t *td)
|
|
{
|
|
struct proc *p;
|
|
sigset_t tmpset;
|
|
|
|
if (rpc == NULL)
|
|
{
|
|
return EFAULT;
|
|
}
|
|
|
|
if (ISSET(rpc->rc_flag, RPCCLNT_REDIRECT))
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
if (task && ISSET(task->r_flags, TASK_SOFTTERM))
|
|
{
|
|
return EINTR;
|
|
}
|
|
|
|
if (!ISSET(rpc->rc_flag, RPCCLNT_INT))
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
if (td == NULL)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
p = cthread_proc(td);
|
|
|
|
PROC_LOCK(p);
|
|
tmpset = p->p_siglist;
|
|
SIGSETNAND(tmpset, td->td_sigmask);
|
|
mtx_lock(&p->p_sigacts->ps_mtx);
|
|
SIGSETNAND(tmpset, p->p_sigacts->ps_sigignore);
|
|
mtx_unlock(&p->p_sigacts->ps_mtx);
|
|
|
|
if (SIGNOTEMPTY(p->p_siglist) && RPCCLNTINT_SIGMASK(tmpset))
|
|
{
|
|
PROC_UNLOCK(p);
|
|
return EINTR;
|
|
}
|
|
|
|
PROC_UNLOCK(p);
|
|
return 0;
|
|
}
|
|
|
|
/* Lock a socket against others. Necessary for STREAM sockets to ensure you
|
|
* get an entire rpc request/reply and also to avoid race conditions between
|
|
* the processes with nfs requests in progress when a reconnect is necessary.
|
|
*/
|
|
|
|
static int rpcclnt_sndlock(int *flagp, struct rpctask *task)
|
|
{
|
|
int slpflag = 0, slptimeo = 0;
|
|
|
|
if (task)
|
|
{
|
|
if (task->r_rpcclnt->rc_flag & RPCCLNT_INT)
|
|
slpflag = PCATCH;
|
|
}
|
|
|
|
while (*flagp & RPCCLNT_SNDLOCK)
|
|
{
|
|
if (rpcclnt_sigintr(task->r_rpcclnt, task, p))
|
|
{
|
|
return EINTR;
|
|
}
|
|
|
|
*flagp |= RPCCLNT_WANTSND;
|
|
if (slpflag == PCATCH)
|
|
{
|
|
slpflag = 0;
|
|
slptimeo = 2 * CLOCKS_PER_SEC;
|
|
}
|
|
}
|
|
|
|
*flagp |= RPCCLNT_SNDLOCK;
|
|
return 0;
|
|
}
|
|
|
|
/* Unlock the stream socket for others. */
|
|
|
|
static void rpcclnt_sndunlock(int *flagp)
|
|
{
|
|
if ((*flagp & RPCCLNT_SNDLOCK) == 0)
|
|
{
|
|
panic("rpc sndunlock");
|
|
}
|
|
|
|
*flagp &= ~RPCCLNT_SNDLOCK;
|
|
if (*flagp & RPCCLNT_WANTSND)
|
|
{
|
|
*flagp &= ~RPCCLNT_WANTSND;
|
|
}
|
|
}
|
|
|
|
static int rpcclnt_rcvlock(struct rpctask *task)
|
|
{
|
|
int *flagp = &task->r_rpcclnt->rc_flag;
|
|
int slpflag, slptimeo = 0;
|
|
|
|
if (*flagp & RPCCLNT_INT)
|
|
{
|
|
slpflag = PCATCH;
|
|
}
|
|
else
|
|
{
|
|
slpflag = 0;
|
|
}
|
|
|
|
while (*flagp & RPCCLNT_RCVLOCK)
|
|
{
|
|
if (rpcclnt_sigintr(task->r_rpcclnt, task, task->r_td))
|
|
{
|
|
return EINTR;
|
|
}
|
|
|
|
*flagp |= RPCCLNT_WANTRCV;
|
|
tsleep((caddr_t) flagp, slpflag | (PZERO - 1), "rpcrcvlk", slptimeo);
|
|
if (slpflag == PCATCH)
|
|
{
|
|
slpflag = 0;
|
|
slptimeo = 2 * CLOCKS_PER_SEC;
|
|
}
|
|
}
|
|
|
|
*flagp |= RPCCLNT_RCVLOCK;
|
|
return 0;
|
|
}
|
|
|
|
/* Unlock the stream socket for others. */
|
|
|
|
static void rpcclnt_rcvunlock(int *flagp)
|
|
{
|
|
if ((*flagp & RPCCLNT_RCVLOCK) == 0)
|
|
{
|
|
panic("nfs rcvunlock");
|
|
}
|
|
|
|
*flagp &= ~RPCCLNT_RCVLOCK;
|
|
if (*flagp & RPCCLNT_WANTRCV)
|
|
{
|
|
*flagp &= ~RPCCLNT_WANTRCV;
|
|
wakeup((caddr_t) flagp);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
static uint32_t rpcclnt_proct(struct rpcclnt *rpc, uint32_t procid)
|
|
{
|
|
if (rpc->rc_proctlen != 0 && rpc->rc_proct != NULL &&
|
|
procid < rpc->rc_proctlen)
|
|
{
|
|
return rpc->rc_proct[procid];
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
#ifdef COMP
|
|
static void rpcclnt_softterm(struct rpctask *task)
|
|
{
|
|
task->r_flags |= TASK_SOFTTERM;
|
|
if (task->r_flags & TASK_SENT)
|
|
{
|
|
task->r_rpcclnt->rc_sent -= RPC_CWNDSCALE;
|
|
task->r_flags &= ~TASK_SENT;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
void rpcclnt_init(void)
|
|
{
|
|
rpcclnt_ticks = (CLOCKS_PER_SEC * RPC_TICKINTVL + 500) / 1000;
|
|
if (rpcclnt_ticks < 1)
|
|
{
|
|
rpcclnt_ticks = 1;
|
|
}
|
|
|
|
rpcstats.rpcretries = 0;
|
|
rpcstats.rpcrequests = 0;
|
|
rpcstats.rpctimeouts = 0;
|
|
rpcstats.rpcunexpected = 0;
|
|
rpcstats.rpcinvalid = 0;
|
|
|
|
/* RPC constants how about actually using more than one of these! */
|
|
|
|
rpc_reply = txdr_unsigned(RPC_REPLY);
|
|
rpc_vers = txdr_unsigned(RPC_VER2);
|
|
rpc_call = txdr_unsigned(RPC_CALL);
|
|
rpc_msgdenied = txdr_unsigned(RPC_MSGDENIED);
|
|
rpc_msgaccepted = txdr_unsigned(RPC_MSGACCEPTED);
|
|
rpc_mismatch = txdr_unsigned(RPC_MISMATCH);
|
|
rpc_autherr = txdr_unsigned(RPC_AUTHERR);
|
|
rpc_auth_unix = txdr_unsigned(RPCAUTH_UNIX);
|
|
rpc_auth_null = txdr_unsigned(RPCAUTH_NULL);
|
|
|
|
/* Initialize rpctask queue */
|
|
|
|
dq_init(&rpctask_q);
|
|
|
|
//rpcclnt_timer(NULL, callmgs);
|
|
|
|
fvdbg("rpc initialized\n");
|
|
}
|
|
|
|
/*
|
|
void
|
|
rpcclnt_uninit(void)
|
|
{
|
|
fvdbg("uninit\n");
|
|
untimeout(rpcclnt_timer, (void *)NULL, rpcclnt_timer_handle);
|
|
}
|
|
*/
|
|
|
|
/* Initialize sockets and congestion for a new RPC connection. We do not free
|
|
* the sockaddr if error.
|
|
*/
|
|
|
|
int rpcclnt_connect(struct rpcclnt *rpc)
|
|
{
|
|
struct socket *so;
|
|
int error;
|
|
struct sockaddr *saddr;
|
|
struct sockaddr_in sin;
|
|
struct sockaddr_in *sa;
|
|
struct call_args_pmap sdata;
|
|
struct call_args_mount mountd;
|
|
struct rpc_reply_pmap rdata;
|
|
struct rpc_reply_mount mdata;
|
|
struct timeval tv;
|
|
uint16_t tport;
|
|
int errval;
|
|
|
|
fvdbg("Connecting\n");
|
|
|
|
/* Create the socket */
|
|
|
|
saddr = rpc->rc_name;
|
|
memset(&sin, 0, sizeof(sin));
|
|
|
|
/* Create an instance of the socket state structure */
|
|
|
|
so = (struct socket *)kzalloc(sizeof(struct socket));
|
|
if (!so)
|
|
{
|
|
fdbg("ERROR: Failed to allocate socket structure\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
error = psock_socket(saddr->sa_family, rpc->rc_sotype, rpc->rc_soproto, so);
|
|
if (error < 0)
|
|
{
|
|
errval = errno;
|
|
fdbg("ERROR: psock_socket failed: %d", errval);
|
|
return error;
|
|
}
|
|
|
|
so->s_crefs = 1;
|
|
rpc->rc_so = so;
|
|
rpc->rc_soflags = so->s_flags;
|
|
|
|
/* Always set receive timeout to detect server crash and reconnect.
|
|
* Otherwise, we can get stuck in psock_receive forever.
|
|
*/
|
|
|
|
tv.tv_sec = 1;
|
|
tv.tv_usec = 0;
|
|
|
|
error = psock_setsockopt(rpc->rc_so, SOL_SOCKET, SO_RCVTIMEO,
|
|
(const void *)&tv, sizeof(tv));
|
|
if (error < 0)
|
|
{
|
|
errval = errno;
|
|
fdbg("ERROR: psock_setsockopt failed: %d\n", errval);
|
|
goto bad;
|
|
}
|
|
|
|
/* Some servers require that the client port be a reserved port
|
|
* number. We always allocate a reserved port, as this prevents
|
|
* filehandle disclosure through UDP port capture.
|
|
*/
|
|
|
|
sin.sin_family = AF_INET;
|
|
sin.sin_addr.s_addr = INADDR_ANY;
|
|
tport = 1024;
|
|
|
|
errval = 0;
|
|
do
|
|
{
|
|
tport--;
|
|
sin.sin_port = htons(tport);
|
|
error = psock_bind(rpc->rc_so, (struct sockaddr *)&sin, sizeof(sin));
|
|
if (error < 0)
|
|
{
|
|
errval = errno;
|
|
fdbg("ERROR: psock_bind failed: %d\n", errval);
|
|
}
|
|
}
|
|
while (errval == EADDRINUSE && tport > 1024 / 2);
|
|
|
|
if (error)
|
|
{
|
|
fdbg("ERROR: psock_bind failed: %d\n", errval);
|
|
goto bad;
|
|
}
|
|
|
|
/* Initialize congestion variables */
|
|
|
|
rpc->rc_srtt[0] = (RPC_TIMEO << 3);
|
|
rpc->rc_srtt[1] = (RPC_TIMEO << 3);
|
|
rpc->rc_srtt[2] = (RPC_TIMEO << 3);
|
|
rpc->rc_srtt[3] = (RPC_TIMEO << 3);
|
|
rpc->rc_sdrtt[0] = 0;
|
|
rpc->rc_sdrtt[1] = 0;
|
|
rpc->rc_sdrtt[2] = 0;
|
|
rpc->rc_sdrtt[3] = 0;
|
|
rpc->rc_cwnd = RPC_MAXCWND / 2; /* Initial send window */
|
|
rpc->rc_sent = 0;
|
|
rpc->rc_timeouts = 0;
|
|
|
|
/* Protocols that do not require connections may be optionally left
|
|
* unconnected for servers that reply from a port other than
|
|
* NFS_PORT.
|
|
*/
|
|
|
|
#ifdef CONFIG_NFS_TCPIP
|
|
if (rpc->rc_soflags == PR_CONNREQUIRED)
|
|
{
|
|
error = ENOTCONN;
|
|
goto bad;
|
|
}
|
|
else
|
|
#endif
|
|
{
|
|
error = psock_connect(rpc->rc_so, saddr, sizeof(*saddr));
|
|
if (error < 0)
|
|
{
|
|
errval = errno;
|
|
fdbg("ERROR: psock_connect to PMAP port failed: %d", errval);
|
|
goto bad;
|
|
}
|
|
|
|
/* Do the RPC to get a dynamic bounding with the server using ppmap.
|
|
* Get port number for MOUNTD.
|
|
*/
|
|
|
|
memset(&sdata, 0, sizeof(struct call_args_pmap));
|
|
memset(&rdata, 0, sizeof(struct rpc_reply_pmap));
|
|
sdata.prog = txdr_unsigned(RPCPROG_MNT);
|
|
sdata.vers = txdr_unsigned(RPCMNT_VER1);
|
|
sdata.proc = txdr_unsigned(IPPROTO_UDP);
|
|
sdata.port = 0;
|
|
|
|
error = rpcclnt_request(rpc, PMAPPROC_GETPORT, PMAPPROG, PMAPVERS,
|
|
(FAR void *)&rdata, (FAR const void *)&sdata,
|
|
sizeof(struct rpc_reply_pmap));
|
|
if (error != 0)
|
|
{
|
|
fdbg("ERROR: rpcclnt_request failed: %d\n", error);
|
|
goto bad;
|
|
}
|
|
|
|
sa = (FAR struct sockaddr_in *)saddr;
|
|
sa->sin_port = htons(fxdr_unsigned(uint32_t, rdata.pmap.port));
|
|
|
|
error = psock_connect(rpc->rc_so, saddr, sizeof(*saddr));
|
|
if (error < 0)
|
|
{
|
|
errval = errno;
|
|
fdbg("ERROR: psock_connect MOUNTD port failed: %d\n", errval);
|
|
goto bad;
|
|
}
|
|
|
|
/* Do RPC to mountd. */
|
|
|
|
memset(&mountd, 0, sizeof(struct call_args_mount));
|
|
memset(&mdata, 0, sizeof(struct rpc_reply_mount));
|
|
strncpy(mountd.rpath, rpc->rc_path, 90);
|
|
mountd.len = txdr_unsigned(sizeof(mountd.rpath));
|
|
|
|
error = rpcclnt_request(rpc, RPCMNT_MOUNT, RPCPROG_MNT, RPCMNT_VER1,
|
|
(FAR void *)&mdata, (FAR const void *)&mountd,
|
|
sizeof(struct rpc_reply_mount));
|
|
if (error != 0)
|
|
{
|
|
fdbg("ERROR: rpcclnt_request failed: %d\n", error);
|
|
goto bad;
|
|
}
|
|
|
|
error = fxdr_unsigned(uint32_t, mdata.mount.status);
|
|
if (error != 0)
|
|
{
|
|
fdbg("ERROR: fxdr_unsigned failed: %d\n", error);
|
|
goto bad;
|
|
}
|
|
|
|
bcopy(&mdata.mount.fhandle, &rpc->rc_fh, sizeof(nfsfh_t));
|
|
|
|
/* Do the RPC to get a dynamic bounding with the server using PMAP.
|
|
* NFS port in the socket.
|
|
*/
|
|
|
|
memset(&sdata, 0, sizeof(struct call_args_pmap));
|
|
memset(&rdata, 0, sizeof(struct rpc_reply_pmap));
|
|
sa->sin_port = htons(PMAPPORT);
|
|
|
|
error = psock_connect(rpc->rc_so, saddr, sizeof(*saddr));
|
|
if (error < 0)
|
|
{
|
|
errval = errno;
|
|
fdbg("ERROR: psock_connect PMAP port failed: %d\n", errval);
|
|
goto bad;
|
|
}
|
|
|
|
sdata.prog = txdr_unsigned(NFS_PROG);
|
|
sdata.vers = txdr_unsigned(NFS_VER3);
|
|
sdata.proc = txdr_unsigned(IPPROTO_UDP);
|
|
sdata.port = 0;
|
|
|
|
error = rpcclnt_request(rpc, PMAPPROC_GETPORT, PMAPPROG, PMAPVERS,
|
|
(FAR void *)&rdata, (FAR const void *)&sdata,
|
|
sizeof(struct rpc_reply_pmap));
|
|
if (error != 0)
|
|
{
|
|
fdbg("ERROR: rpcclnt_request failed: %d\n", error);
|
|
goto bad;
|
|
}
|
|
|
|
sa->sin_port = htons(fxdr_unsigned(uint32_t, rdata.pmap.port));
|
|
|
|
error = psock_connect(rpc->rc_so, saddr, sizeof(*saddr));
|
|
if (error)
|
|
{
|
|
fdbg("psock_connect NFS port returns %d\n", error);
|
|
goto bad;
|
|
}
|
|
}
|
|
|
|
fvdbg("Succeeded\n");
|
|
return 0;
|
|
|
|
bad:
|
|
rpcclnt_disconnect(rpc);
|
|
return error;
|
|
}
|
|
|
|
/* Reconnect routine: Called when a connection is broken on a reliable
|
|
* protocol. - clean up the old socket - nfs_connect() again - set
|
|
* TASK_MUSTRESEND for all outstanding requests on mount point If this
|
|
* fails the mount point is DEAD! nb: Must be called with the
|
|
* nfs_sndlock() set on the mount point.
|
|
*/
|
|
|
|
#ifdef CONFIG_NFS_TCPIP
|
|
int rpcclnt_reconnect(struct rpctask *rep)
|
|
{
|
|
struct rpctask *rp;
|
|
struct rpcclnt *rpc = rep->r_rpcclnt;
|
|
int error;
|
|
|
|
rpcclnt_disconnect(rpc);
|
|
do
|
|
{
|
|
error = rpcclnt_connect(rpc);
|
|
if (error != 0)
|
|
{
|
|
fdbg("ERROR: rpcclnt_connect failed: %d\n", error);
|
|
if (error == EINTR || error == ERESTART)
|
|
{
|
|
return EINTR;
|
|
}
|
|
}
|
|
}
|
|
while (error != 0)
|
|
|
|
/* Loop through outstanding request list and fix up all
|
|
* requests on old socket.
|
|
*/
|
|
|
|
for (rp = (struct rpctask *)rpctask_q->head; rp != NULL;
|
|
rp = (struct rpctask *)rp->r_chain.blink)
|
|
{
|
|
if (rp->r_rpcclnt == rpc)
|
|
{
|
|
rp->r_flags |= TASK_MUSTRESEND;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
void rpcclnt_disconnect(struct rpcclnt *rpc)
|
|
{
|
|
struct socket *so;
|
|
|
|
if (rpc->rc_so != NULL)
|
|
{
|
|
so = rpc->rc_so;
|
|
(void)psock_close(so);
|
|
}
|
|
}
|
|
|
|
int rpcclnt_umount(struct rpcclnt *rpc)
|
|
{
|
|
struct sockaddr *saddr;
|
|
struct sockaddr_in *sa;
|
|
struct call_args_pmap sdata;
|
|
struct rpc_reply_pmap rdata;
|
|
struct call_args_mount mountd;
|
|
struct rpc_reply_mount mdata;
|
|
int error;
|
|
|
|
saddr = rpc->rc_name;
|
|
sa = (FAR struct sockaddr_in *)saddr;
|
|
|
|
/* Do the RPC to get a dynamic bounding with the server using ppmap.
|
|
* Get port number for MOUNTD.
|
|
*/
|
|
|
|
memset(&sdata, 0, sizeof(struct call_args_pmap));
|
|
memset(&rdata, 0, sizeof(struct rpc_reply_pmap));
|
|
sa->sin_port = htons(PMAPPORT);
|
|
|
|
error = psock_connect(rpc->rc_so, saddr, sizeof(*saddr));
|
|
if (error)
|
|
{
|
|
fdbg("psock_connect MOUNTD port returns %d\n", error);
|
|
goto bad;
|
|
}
|
|
|
|
sdata.prog = txdr_unsigned(RPCPROG_MNT);
|
|
sdata.vers = txdr_unsigned(RPCMNT_VER1);
|
|
sdata.proc = txdr_unsigned(IPPROTO_UDP);
|
|
sdata.port = 0;
|
|
|
|
error = rpcclnt_request(rpc, PMAPPROC_GETPORT, PMAPPROG, PMAPVERS,
|
|
(void *)&rdata, (FAR const void *)&sdata,
|
|
sizeof(struct rpc_reply_pmap));
|
|
if (error != 0)
|
|
{
|
|
goto bad;
|
|
}
|
|
|
|
sa->sin_port = htons(fxdr_unsigned(uint32_t, rdata.pmap.port));
|
|
|
|
error = psock_connect(rpc->rc_so, saddr, sizeof(*saddr));
|
|
if (error)
|
|
{
|
|
fdbg("psock_connect MOUNTD port returns %d\n", error);
|
|
goto bad;
|
|
}
|
|
|
|
/* Do RPC to umountd. */
|
|
|
|
memset(&mountd, 0, sizeof(struct call_args_mount));
|
|
memset(&mdata, 0, sizeof(struct rpc_reply_mount));
|
|
|
|
strncpy(mountd.rpath, rpc->rc_path, 92);
|
|
mountd.len = txdr_unsigned(sizeof(mountd.rpath));
|
|
|
|
error = rpcclnt_request(rpc, RPCMNT_UMOUNT, RPCPROG_MNT, RPCMNT_VER1,
|
|
(void *)&mdata, (FAR const void *)&mountd,
|
|
sizeof(struct rpc_reply_mount));
|
|
if (error != 0)
|
|
{
|
|
goto bad;
|
|
}
|
|
|
|
if ((fxdr_unsigned(uint32_t, mdata.mount.status)) != 0)
|
|
{
|
|
fdbg("error unmounting with the server %d\n", error);
|
|
goto bad;
|
|
}
|
|
|
|
return 0;
|
|
|
|
bad:
|
|
rpcclnt_disconnect(rpc);
|
|
return error;
|
|
}
|
|
|
|
#ifdef CONFIG_NFS_TCPIP
|
|
void rpcclnt_safedisconnect(struct rpcclnt *rpc)
|
|
{
|
|
struct rpctask dummytask;
|
|
|
|
memset((void *)dummytask, 0, sizeof(*call));
|
|
dummytask.r_rpcclnt = rpc;
|
|
rpcclnt_rcvlock(&dummytask);
|
|
rpcclnt_disconnect(rpc);
|
|
rpcclnt_rcvunlock(&rpc->rc_flag);
|
|
}
|
|
#endif
|
|
|
|
/* Code from nfs_request - goes something like this - fill in task struct -
|
|
* links task into list - calls nfs_send() for first transmit - calls
|
|
* nfs_receive() to get reply - fills in reply (which should be initialized
|
|
* prior to calling), which is valid when 0.
|
|
*
|
|
* note that reply->result_* are invalid unless reply->type ==
|
|
* RPC_MSGACCEPTED and reply->status == RPC_SUCCESS and that reply->verf_*
|
|
* are invalid unless reply->type == RPC_MSGACCEPTED
|
|
*/
|
|
|
|
int rpcclnt_request(struct rpcclnt *rpc, int procnum, int prog, int version,
|
|
void *dataout, FAR const void *datain, size_t len)
|
|
{
|
|
struct rpc_reply_header replymgs;
|
|
struct rpc_reply_header replyheader;
|
|
struct rpctask *task = NULL;
|
|
struct xidr value;
|
|
int error = 0;
|
|
|
|
/* Set aside memory on the stack to hold the largest call message */
|
|
|
|
union
|
|
{
|
|
struct rpc_call_pmap pmap;
|
|
struct rpc_call_mount mountd;
|
|
struct rpc_call_create create;
|
|
struct rpc_call_write write;
|
|
struct rpc_call_read read;
|
|
struct rpc_call_remove removef;
|
|
struct rpc_call_rename renamef;
|
|
struct rpc_call_mkdir mkdir;
|
|
struct rpc_call_rmdir rmdir;
|
|
struct rpc_call_readdir readdir;
|
|
struct rpc_call_fs fs;
|
|
} u;
|
|
|
|
/* Clear the call message memory */
|
|
|
|
memset(&u, 0, sizeof(u));
|
|
|
|
/* Create an instance of the task state structure */
|
|
|
|
task = (struct rpctask *)kzalloc(sizeof(struct rpctask));
|
|
if (!task)
|
|
{
|
|
fdbg("ERROR: Failed to allocate reply msg structure\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
error = rpcclnt_buildheader(rpc, procnum, prog, version, &value, datain, (FAR void*)&u);
|
|
if (error)
|
|
{
|
|
fdbg("ERROR: Building call header error\n");
|
|
goto rpcmout;
|
|
}
|
|
|
|
task->r_rpcclnt = rpc;
|
|
task->r_xid = value.xid;
|
|
task->r_procnum = procnum;
|
|
|
|
if (rpc->rc_flag & RPCCLNT_SOFT)
|
|
{
|
|
task->r_retry = rpc->rc_retry;
|
|
}
|
|
else
|
|
{
|
|
task->r_retry = RPC_MAXREXMIT + 1; /* past clip limit */
|
|
}
|
|
|
|
task->r_rtt = task->r_rexmit = 0;
|
|
|
|
if (rpcclnt_proct(rpc, procnum) > 0)
|
|
{
|
|
task->r_flags = TASK_TIMING;
|
|
}
|
|
else
|
|
{
|
|
task->r_flags = 0;
|
|
}
|
|
|
|
/* Do the client side RPC. */
|
|
|
|
rpcstats.rpcrequests++;
|
|
|
|
/* Chain request into list of outstanding requests. Be sure to put it
|
|
* LAST so timer finds oldest requests first.
|
|
*/
|
|
|
|
dq_addlast(&task->r_chain, &rpctask_q);
|
|
|
|
/* If backing off another request or avoiding congestion, don't send
|
|
* this one now but let timer do it. If not timing a request, do it
|
|
* now.
|
|
*/
|
|
|
|
if (rpc->rc_so && (rpc->rc_sotype == SOCK_DGRAM ||
|
|
(rpc->rc_flag & RPCCLNT_DUMBTIMR) ||
|
|
rpc->rc_sent < rpc->rc_cwnd))
|
|
{
|
|
#ifdef CONFIG_NFS_TCPIP
|
|
if (rpc->rc_soflags & PR_CONNREQUIRED)
|
|
{
|
|
error = rpcclnt_sndlock(&rpc->rc_flag, task);
|
|
}
|
|
#endif
|
|
if (error == 0)
|
|
{
|
|
error = rpcclnt_send(rpc->rc_so, rpc->rc_name, procnum, prog,
|
|
(FAR void*)&u, task);
|
|
|
|
#ifdef CONFIG_NFS_TCPIP
|
|
if (rpc->rc_soflags & PR_CONNREQUIRED)
|
|
{
|
|
rpcclnt_sndunlock(&rpc->rc_flag);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
if (error == 0 && (task->r_flags & TASK_MUSTRESEND) == 0)
|
|
{
|
|
rpc->rc_sent += RPC_CWNDSCALE;
|
|
task->r_flags |= TASK_SENT;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
task->r_rtt = -1;
|
|
}
|
|
|
|
/* Wait for the reply from our send. */
|
|
|
|
if (error == 0 || error == EPIPE)
|
|
{
|
|
error = rpcclnt_reply(task, procnum, prog, dataout, len);
|
|
}
|
|
fvdbg("out for reply %d\n", error);
|
|
|
|
/* RPC done, unlink the request. */
|
|
|
|
dq_rem(&task->r_chain, &rpctask_q);
|
|
|
|
/* Decrement the outstanding request count. */
|
|
|
|
if (task->r_flags & TASK_SENT)
|
|
{
|
|
task->r_flags &= ~TASK_SENT; /* paranoia */
|
|
rpc->rc_sent -= RPC_CWNDSCALE;
|
|
}
|
|
|
|
if (error != 0)
|
|
{
|
|
goto rpcmout;
|
|
}
|
|
|
|
/* Break down the rpc header and check if ok */
|
|
|
|
memset(&replymgs, 0, sizeof(replymgs));
|
|
bcopy(dataout, &replyheader, sizeof(struct rpc_reply_header));
|
|
replymgs.type = fxdr_unsigned(uint32_t, replyheader.type);
|
|
if (replymgs.type == RPC_MSGDENIED)
|
|
{
|
|
replymgs.status = fxdr_unsigned(uint32_t, replyheader.status);
|
|
switch (replymgs.status)
|
|
{
|
|
case RPC_MISMATCH:
|
|
/*replymgs.stat.mismatch_info.low =
|
|
fxdr_unsigned(uint32_t, replyheader.stat.mismatch_info.low);
|
|
replymgs.stat.mismatch_info.high =
|
|
fxdr_unsigned(uint32_t, replyheader.stat.mismatch_info.high);*/
|
|
fdbg("RPC_MSGDENIED: RPC_MISMATCH error\n");
|
|
error = EOPNOTSUPP;
|
|
break;
|
|
|
|
case RPC_AUTHERR:
|
|
//replymgs.stat.autherr = fxdr_unsigned(uint32_t, replyheader.stat.autherr);
|
|
fdbg("RPC_MSGDENIED: RPC_AUTHERR error\n");
|
|
error = EACCES;
|
|
break;
|
|
|
|
default:
|
|
error = EOPNOTSUPP;
|
|
break;
|
|
}
|
|
goto rpcmout;
|
|
}
|
|
else if (replymgs.type != RPC_MSGACCEPTED)
|
|
{
|
|
error = EOPNOTSUPP;
|
|
goto rpcmout;
|
|
}
|
|
|
|
/* Verifier */
|
|
|
|
/*replymgs.rpc_verfi.authtype =
|
|
fxdr_unsigned(enum auth_flavor, replyheader.rpc_verfi.authtype);
|
|
replymgs.rpc_verfi.authlen =
|
|
fxdr_unsigned(uint32_t, replyheader.rpc_verfi.authlen);*/
|
|
|
|
if (replymgs.status == RPC_SUCCESS)
|
|
{
|
|
fvdbg("RPC_SUCCESS\n");
|
|
}
|
|
else if (replymgs.status == RPC_PROGMISMATCH)
|
|
{
|
|
/*replymgs.stat.mismatch_info.low =
|
|
fxdr_unsigned(uint32_t, replyheader.stat.mismatch_info.low);
|
|
replymgs.stat.mismatch_info.high =
|
|
fxdr_unsigned(uint32_t, replyheader.stat.mismatch_info.high);*/
|
|
|
|
fdbg("RPC_MSGACCEPTED: RPC_PROGMISMATCH error\n");
|
|
error = EOPNOTSUPP;
|
|
}
|
|
else if (replymgs.status > 5)
|
|
{
|
|
error = EOPNOTSUPP;
|
|
goto rpcmout;
|
|
}
|
|
|
|
rpcmout:
|
|
kfree(task);
|
|
return error;
|
|
}
|
|
|
|
#undef COMP
|
|
#ifdef COMP
|
|
/* Nfs timer routine Scan the nfsreq list and retranmit any requests that
|
|
* have timed out To avoid retransmission attempts on STREAM sockets (in the
|
|
* future) make sure to set the r_retry field to 0 (implies nm_retry == 0).
|
|
*/
|
|
|
|
void rpcclnt_timer(void *arg, struct rpc_call *call)
|
|
{
|
|
struct rpctask *rep;
|
|
struct socket *so;
|
|
struct rpcclnt *rpc;
|
|
int timeo, error;
|
|
|
|
for (rep = (struct rpctask *)rpctask_q.head; rep != NULL;
|
|
rep = (struct rpctask *)rep->r_chain.flink)
|
|
{
|
|
rpc = rep->r_rpcclnt;
|
|
if (rep->r_flags & TASK_SOFTTERM)
|
|
{
|
|
continue;
|
|
}
|
|
|
|
if (rep->r_rtt >= 0)
|
|
{
|
|
rep->r_rtt++;
|
|
if (rpc->rc_flag & RPCCLNT_DUMBTIMR)
|
|
{
|
|
timeo = rpc->rc_timeo;
|
|
}
|
|
else
|
|
{
|
|
timeo = RPC_RTO(rpc, rpcclnt_proct(rep->r_rpcclnt, rep->r_procnum));
|
|
}
|
|
|
|
if (rpc->rc_timeouts > 0)
|
|
{
|
|
timeo *= rpcclnt_backoff[rpc->rc_timeouts - 1];
|
|
}
|
|
|
|
if (rep->r_rtt <= timeo)
|
|
{
|
|
continue;
|
|
}
|
|
|
|
if (rpc->rc_timeouts < 8)
|
|
{
|
|
rpc->rc_timeouts++;
|
|
}
|
|
}
|
|
|
|
/* Check for server not responding */
|
|
|
|
if ((rep->r_flags & TASK_TPRINTFMSG) == 0 &&
|
|
rep->r_rexmit > rpc->rc_deadthresh)
|
|
{
|
|
fdbg("Server is not responding\n");
|
|
rep->r_flags |= TASK_TPRINTFMSG;
|
|
}
|
|
|
|
if (rep->r_rexmit >= rep->r_retry)
|
|
{ /* too many */
|
|
rpcstats.rpctimeouts++;
|
|
rep->r_flags |= TASK_SOFTTERM;
|
|
continue;
|
|
}
|
|
|
|
if (rpc->rc_sotype != SOCK_DGRAM)
|
|
{
|
|
if (++rep->r_rexmit > RPC_MAXREXMIT)
|
|
{
|
|
rep->r_rexmit = RPC_MAXREXMIT;
|
|
}
|
|
continue;
|
|
}
|
|
|
|
if ((so = rpc->rc_so) == NULL)
|
|
{
|
|
continue;
|
|
}
|
|
|
|
/* If there is enough space and the window allows.. Resend it
|
|
* Set r_rtt to -1 in case we fail to send it now.
|
|
*/
|
|
|
|
rep->r_rtt = -1;
|
|
if ((rpc->rc_flag & RPCCLNT_DUMBTIMR) || (rep->r_flags & TASK_SENT) ||
|
|
rpc->rc_sent < rpc->rc_cwnd)
|
|
{
|
|
|
|
if ((rpc->rc_flag & RPCCLNT_NOCONN) == 0)
|
|
{
|
|
error = psock_sendto(so, call, sizeof(*call), 0, NULL, 0);
|
|
}
|
|
else
|
|
{
|
|
error = psock_sendto(so, call, sizeof(*call), 0, rpc->rc_name,
|
|
sizeof(*rpc->rc_name));
|
|
}
|
|
|
|
if (error < 0)
|
|
{
|
|
/* Iff first send, start timing else turn
|
|
* timing off, backoff timer and divide
|
|
* congestion window by 2.
|
|
*/
|
|
|
|
if (rep->r_flags & TASK_SENT)
|
|
{
|
|
rep->r_flags &= ~TASK_TIMING;
|
|
if (++rep->r_rexmit > RPC_MAXREXMIT)
|
|
{
|
|
rep->r_rexmit = RPC_MAXREXMIT;
|
|
}
|
|
|
|
rpc->rc_cwnd >>= 1;
|
|
if (rpc->rc_cwnd < RPC_CWNDSCALE)
|
|
{
|
|
rpc->rc_cwnd = RPC_CWNDSCALE;
|
|
}
|
|
|
|
rpcstats.rpcretries++;
|
|
}
|
|
else
|
|
{
|
|
rep->r_flags |= TASK_SENT;
|
|
rpc->rc_sent += RPC_CWNDSCALE;
|
|
}
|
|
|
|
rep->r_rtt = 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
// rpcclnt_timer_handle = timeout(rpcclnt_timer, NULL, rpcclnt_ticks);
|
|
}
|
|
#endif
|
|
|
|
/* Build the RPC header and fill in the authorization info. */
|
|
|
|
int rpcclnt_buildheader(struct rpcclnt *rpc, int procid, int prog, int vers,
|
|
struct xidr *value, FAR const void *datain,
|
|
void *dataout)
|
|
{
|
|
srand(time(NULL));
|
|
int xidp = 0;
|
|
|
|
/* The RPC header.*/
|
|
|
|
/* Get a new (non-zero) xid */
|
|
|
|
if ((rpcclnt_xid == 0) && (rpcclnt_xid_touched == 0))
|
|
{
|
|
rpcclnt_xid = rand();
|
|
rpcclnt_xid_touched = 1;
|
|
}
|
|
else
|
|
{
|
|
do
|
|
{
|
|
xidp = rand();
|
|
}
|
|
while ((xidp % 256) == 0);
|
|
|
|
rpcclnt_xid += xidp;
|
|
}
|
|
|
|
/* Perform the binding depending on the protocol type */
|
|
|
|
if (prog == PMAPPROG)
|
|
{
|
|
if (procid == PMAPPROC_GETPORT)
|
|
{
|
|
struct rpc_call_pmap *callmsg = (struct rpc_call_pmap *)dataout;
|
|
bcopy(datain, &callmsg->pmap, sizeof(struct call_args_pmap));
|
|
|
|
callmsg->ch.rp_xid = txdr_unsigned(rpcclnt_xid);
|
|
value->xid = callmsg->ch.rp_xid;
|
|
callmsg->ch.rp_direction = rpc_call;
|
|
callmsg->ch.rp_rpcvers = rpc_vers;
|
|
callmsg->ch.rp_prog = txdr_unsigned(prog);
|
|
callmsg->ch.rp_vers = txdr_unsigned(vers);
|
|
callmsg->ch.rp_proc = txdr_unsigned(procid);
|
|
|
|
/* rpc_auth part (auth_unix as root) */
|
|
|
|
callmsg->ch.rpc_auth.authtype = rpc_auth_null;
|
|
//call->rpc_auth.authlen = 0;
|
|
#ifdef CONFIG_NFS_UNIX_AUTH
|
|
callmsg->ch.rpc_unix.stamp = txdr_unsigned(1);
|
|
callmsg->ch.rpc_unix.hostname = 0;
|
|
callmsg->ch.rpc_unix.uid = setuid;
|
|
callmsg->ch.rpc_unix.gid = setgid;
|
|
callmsg->ch.rpc_unix.gidlist = 0;
|
|
#endif
|
|
/* rpc_verf part (auth_null) */
|
|
|
|
callmsg->ch.rpc_verf.authtype = rpc_auth_null;
|
|
//call->rpc_verf.authlen = 0;
|
|
return 0;
|
|
}
|
|
else if (procid == PMAPPROC_UNSET)
|
|
{
|
|
struct rpc_call_pmap *callmsg = (struct rpc_call_pmap *)dataout;;
|
|
bcopy(datain, &callmsg->pmap, sizeof(struct call_args_pmap));
|
|
callmsg->ch.rp_xid = txdr_unsigned(rpcclnt_xid);
|
|
value->xid = callmsg->ch.rp_xid;
|
|
callmsg->ch.rp_direction = rpc_call;
|
|
callmsg->ch.rp_rpcvers = rpc_vers;
|
|
callmsg->ch.rp_prog = txdr_unsigned(prog);
|
|
callmsg->ch.rp_vers = txdr_unsigned(vers);
|
|
callmsg->ch.rp_proc = txdr_unsigned(procid);
|
|
|
|
/* rpc_auth part (auth_unix as root) */
|
|
|
|
callmsg->ch.rpc_auth.authtype = rpc_auth_null;
|
|
//call->rpc_auth.authlen = 0;
|
|
#ifdef CONFIG_NFS_UNIX_AUTH
|
|
callmsg->ch.rpc_unix.stamp = txdr_unsigned(1);
|
|
callmsg->ch.rpc_unix.hostname = 0;
|
|
callmsg->ch.rpc_unix.uid = setuid;
|
|
callmsg->ch.rpc_unix.gid = setgid;
|
|
callmsg->ch.rpc_unix.gidlist = 0;
|
|
#endif
|
|
/* rpc_verf part (auth_null) */
|
|
|
|
callmsg->ch.rpc_verf.authtype = rpc_auth_null;
|
|
//call->rpc_verf.authlen = 0;
|
|
return 0;
|
|
}
|
|
}
|
|
else if (prog == RPCPROG_MNT)
|
|
{
|
|
if (procid == RPCMNT_UMOUNT)
|
|
{
|
|
struct rpc_call_mount *callmsg = (struct rpc_call_mount *)dataout;
|
|
bcopy(datain, &callmsg->mount, sizeof(struct call_args_mount));
|
|
callmsg->ch.rp_xid = txdr_unsigned(rpcclnt_xid);
|
|
value->xid = callmsg->ch.rp_xid;
|
|
callmsg->ch.rp_direction = rpc_call;
|
|
callmsg->ch.rp_rpcvers = rpc_vers;
|
|
callmsg->ch.rp_prog = txdr_unsigned(prog);
|
|
callmsg->ch.rp_vers = txdr_unsigned(vers);
|
|
callmsg->ch.rp_proc = txdr_unsigned(procid);
|
|
|
|
/* rpc_auth part (auth_unix as root) */
|
|
|
|
callmsg->ch.rpc_auth.authtype = rpc_auth_null;
|
|
//call->rpc_auth.authlen = 0;
|
|
#ifdef CONFIG_NFS_UNIX_AUTH
|
|
callmsg->ch.rpc_unix.stamp = txdr_unsigned(1);
|
|
callmsg->ch.rpc_unix.hostname = 0;
|
|
callmsg->ch.rpc_unix.uid = setuid;
|
|
callmsg->ch.rpc_unix.gid = setgid;
|
|
callmsg->ch.rpc_unix.gidlist = 0;
|
|
#endif
|
|
/* rpc_verf part (auth_null) */
|
|
|
|
callmsg->ch.rpc_verf.authtype = rpc_auth_null;
|
|
//call->rpc_verf.authlen = 0;
|
|
return 0;
|
|
}
|
|
else if (procid == RPCMNT_MOUNT)
|
|
{
|
|
struct rpc_call_mount *callmsg = (struct rpc_call_mount *)dataout;
|
|
bcopy(datain, &callmsg->mount, sizeof(struct call_args_mount));
|
|
callmsg->ch.rp_xid = txdr_unsigned(rpcclnt_xid);
|
|
value->xid = callmsg->ch.rp_xid;
|
|
callmsg->ch.rp_direction = rpc_call;
|
|
callmsg->ch.rp_rpcvers = rpc_vers;
|
|
callmsg->ch.rp_prog = txdr_unsigned(prog);
|
|
callmsg->ch.rp_vers = txdr_unsigned(vers);
|
|
callmsg->ch.rp_proc = txdr_unsigned(procid);
|
|
|
|
/* rpc_auth part (auth_unix as root) */
|
|
|
|
callmsg->ch.rpc_auth.authtype = rpc_auth_null;
|
|
//call->rpc_auth.authlen = 0;
|
|
#ifdef CONFIG_NFS_UNIX_AUTH
|
|
callmsg->ch.rpc_unix.stamp = txdr_unsigned(1);
|
|
callmsg->ch.rpc_unix.hostname = 0;
|
|
callmsg->ch.rpc_unix.uid = setuid;
|
|
callmsg->ch.rpc_unix.gid = setgid;
|
|
callmsg->ch.rpc_unix.gidlist = 0;
|
|
#endif
|
|
/* rpc_verf part (auth_null) */
|
|
|
|
callmsg->ch.rpc_verf.authtype = rpc_auth_null;
|
|
//call->rpc_verf.authlen = 0;
|
|
return 0;
|
|
}
|
|
}
|
|
else if (prog == NFS_PROG)
|
|
{
|
|
switch (procid)
|
|
{
|
|
case NFSPROC_CREATE:
|
|
{
|
|
struct rpc_call_create *callmsg = (struct rpc_call_create *)dataout;
|
|
bcopy(datain, &callmsg->create, sizeof(struct CREATE3args));
|
|
callmsg->ch.rp_xid = txdr_unsigned(rpcclnt_xid);
|
|
value->xid = callmsg->ch.rp_xid;
|
|
callmsg->ch.rp_direction = rpc_call;
|
|
callmsg->ch.rp_rpcvers = rpc_vers;
|
|
callmsg->ch.rp_prog = txdr_unsigned(prog);
|
|
callmsg->ch.rp_vers = txdr_unsigned(vers);
|
|
callmsg->ch.rp_proc = txdr_unsigned(procid);
|
|
|
|
/* rpc_auth part (auth_unix as root) */
|
|
|
|
callmsg->ch.rpc_auth.authtype = rpc_auth_null;
|
|
//call->rpc_auth.authlen = 0;
|
|
#ifdef CONFIG_NFS_UNIX_AUTH
|
|
callmsg->ch.rpc_unix.stamp = txdr_unsigned(1);
|
|
callmsg->ch.rpc_unix.hostname = 0;
|
|
callmsg->ch.rpc_unix.uid = setuid;
|
|
callmsg->ch.rpc_unix.gid = setgid;
|
|
callmsg->ch.rpc_unix.gidlist = 0;
|
|
#endif
|
|
/* rpc_verf part (auth_null) */
|
|
|
|
callmsg->ch.rpc_verf.authtype = rpc_auth_null;
|
|
//call->rpc_verf.authlen = 0;
|
|
return 0;
|
|
}
|
|
|
|
case NFSPROC_READ:
|
|
{
|
|
struct rpc_call_read *callmsg = (struct rpc_call_read *)dataout;
|
|
bcopy(datain, &callmsg->read, sizeof(struct READ3args));
|
|
callmsg->ch.rp_xid = txdr_unsigned(rpcclnt_xid);
|
|
value->xid = callmsg->ch.rp_xid;
|
|
callmsg->ch.rp_direction = rpc_call;
|
|
callmsg->ch.rp_rpcvers = rpc_vers;
|
|
callmsg->ch.rp_prog = txdr_unsigned(prog);
|
|
callmsg->ch.rp_vers = txdr_unsigned(vers);
|
|
callmsg->ch.rp_proc = txdr_unsigned(procid);
|
|
|
|
/* rpc_auth part (auth_unix as root) */
|
|
|
|
callmsg->ch.rpc_auth.authtype = rpc_auth_null;
|
|
//call->rpc_auth.authlen = 0;
|
|
|
|
#ifdef CONFIG_NFS_UNIX_AUTH
|
|
callmsg->ch.rpc_unix.stamp = txdr_unsigned(1);
|
|
callmsg->ch.rpc_unix.hostname = 0;
|
|
callmsg->ch.rpc_unix.uid = setuid;
|
|
callmsg->ch.rpc_unix.gid = setgid;
|
|
callmsg->ch.rpc_unix.gidlist = 0;
|
|
#endif
|
|
/* rpc_verf part (auth_null) */
|
|
|
|
callmsg->ch.rpc_verf.authtype = rpc_auth_null;
|
|
//call->rpc_verf.authlen = 0;
|
|
return 0;
|
|
}
|
|
|
|
case NFSPROC_WRITE:
|
|
{
|
|
struct rpc_call_write *callmsg = (struct rpc_call_write *)dataout;
|
|
bcopy(datain, &callmsg->write, sizeof(struct WRITE3args));
|
|
callmsg->ch.rp_xid = txdr_unsigned(rpcclnt_xid);
|
|
value->xid = callmsg->ch.rp_xid;
|
|
callmsg->ch.rp_direction = rpc_call;
|
|
callmsg->ch.rp_rpcvers = rpc_vers;
|
|
callmsg->ch.rp_prog = txdr_unsigned(prog);
|
|
callmsg->ch.rp_vers = txdr_unsigned(vers);
|
|
callmsg->ch.rp_proc = txdr_unsigned(procid);
|
|
|
|
/* rpc_auth part (auth_unix as root) */
|
|
|
|
callmsg->ch.rpc_auth.authtype = rpc_auth_null;
|
|
//call->rpc_auth.authlen = 0;
|
|
|
|
#ifdef CONFIG_NFS_UNIX_AUTH
|
|
callmsg->ch.rpc_unix.stamp = txdr_unsigned(1);
|
|
callmsg->ch.rpc_unix.hostname = 0;
|
|
callmsg->ch.rpc_unix.uid = setuid;
|
|
callmsg->ch.rpc_unix.gid = setgid;
|
|
callmsg->ch.rpc_unix.gidlist = 0;
|
|
#endif
|
|
/* rpc_verf part (auth_null) */
|
|
|
|
callmsg->ch.rpc_verf.authtype = rpc_auth_null;
|
|
//call->rpc_verf.authlen = 0;
|
|
return 0;
|
|
}
|
|
|
|
case NFSPROC_READDIR:
|
|
{
|
|
struct rpc_call_readdir *callmsg = (struct rpc_call_readdir *)dataout;
|
|
bcopy(datain, &callmsg->readdir, sizeof(struct READDIR3args));
|
|
callmsg->ch.rp_xid = txdr_unsigned(rpcclnt_xid);
|
|
value->xid = callmsg->ch.rp_xid;
|
|
callmsg->ch.rp_direction = rpc_call;
|
|
callmsg->ch.rp_rpcvers = rpc_vers;
|
|
callmsg->ch.rp_prog = txdr_unsigned(prog);
|
|
callmsg->ch.rp_vers = txdr_unsigned(vers);
|
|
callmsg->ch.rp_proc = txdr_unsigned(procid);
|
|
|
|
/* rpc_auth part (auth_unix as root) */
|
|
|
|
callmsg->ch.rpc_auth.authtype = rpc_auth_null;
|
|
//call->rpc_auth.authlen = 0;
|
|
|
|
#ifdef CONFIG_NFS_UNIX_AUTH
|
|
callmsg->ch.rpc_unix.stamp = txdr_unsigned(1);
|
|
callmsg->ch.rpc_unix.hostname = 0;
|
|
callmsg->ch.rpc_unix.uid = setuid;
|
|
callmsg->ch.rpc_unix.gid = setgid;
|
|
callmsg->ch.rpc_unix.gidlist = 0;
|
|
#endif
|
|
/* rpc_verf part (auth_null) */
|
|
|
|
callmsg->ch.rpc_verf.authtype = rpc_auth_null;
|
|
//call->rpc_verf.authlen = 0;
|
|
return 0;
|
|
}
|
|
|
|
case NFSPROC_FSSTAT:
|
|
{
|
|
struct rpc_call_fs *callmsg = (struct rpc_call_fs *)dataout;
|
|
bcopy(datain, &callmsg->fs, sizeof(struct FS3args));
|
|
callmsg->ch.rp_xid = txdr_unsigned(rpcclnt_xid);
|
|
value->xid = callmsg->ch.rp_xid;
|
|
callmsg->ch.rp_direction = rpc_call;
|
|
callmsg->ch.rp_rpcvers = rpc_vers;
|
|
callmsg->ch.rp_prog = txdr_unsigned(prog);
|
|
callmsg->ch.rp_vers = txdr_unsigned(vers);
|
|
callmsg->ch.rp_proc = txdr_unsigned(procid);
|
|
|
|
/* rpc_auth part (auth_unix as root) */
|
|
|
|
callmsg->ch.rpc_auth.authtype = rpc_auth_null;
|
|
//call->rpc_auth.authlen = 0;
|
|
|
|
#ifdef CONFIG_NFS_UNIX_AUTH
|
|
callmsg->ch.rpc_unix.stamp = txdr_unsigned(1);
|
|
callmsg->ch.rpc_unix.hostname = 0;
|
|
callmsg->ch.rpc_unix.uid = setuid;
|
|
callmsg->ch.rpc_unix.gid = setgid;
|
|
callmsg->ch.rpc_unix.gidlist = 0;
|
|
#endif
|
|
/* rpc_verf part (auth_null) */
|
|
|
|
callmsg->ch.rpc_verf.authtype = rpc_auth_null;
|
|
//call->rpc_verf.authlen = 0;
|
|
return 0;
|
|
}
|
|
|
|
case NFSPROC_REMOVE:
|
|
{
|
|
struct rpc_call_remove *callmsg = (struct rpc_call_remove *)dataout;
|
|
bcopy(datain, &callmsg->remove, sizeof(struct REMOVE3args));
|
|
callmsg->ch.rp_xid = txdr_unsigned(rpcclnt_xid);
|
|
value->xid = callmsg->ch.rp_xid;
|
|
callmsg->ch.rp_direction = rpc_call;
|
|
callmsg->ch.rp_rpcvers = rpc_vers;
|
|
callmsg->ch.rp_prog = txdr_unsigned(prog);
|
|
callmsg->ch.rp_vers = txdr_unsigned(vers);
|
|
callmsg->ch.rp_proc = txdr_unsigned(procid);
|
|
|
|
/* rpc_auth part (auth_unix as root) */
|
|
|
|
callmsg->ch.rpc_auth.authtype = rpc_auth_null;
|
|
//call->rpc_auth.authlen = 0;
|
|
|
|
#ifdef CONFIG_NFS_UNIX_AUTH
|
|
callmsg->ch.rpc_unix.stamp = txdr_unsigned(1);
|
|
callmsg->ch.rpc_unix.hostname = 0;
|
|
callmsg->ch.rpc_unix.uid = setuid;
|
|
callmsg->ch.rpc_unix.gid = setgid;
|
|
callmsg->ch.rpc_unix.gidlist = 0;
|
|
#endif
|
|
/* rpc_verf part (auth_null) */
|
|
|
|
callmsg->ch.rpc_verf.authtype = rpc_auth_null;
|
|
//call->rpc_verf.authlen = 0;
|
|
return 0;
|
|
}
|
|
|
|
case NFSPROC_GETATTR:
|
|
{
|
|
struct rpc_call_fs *callmsg = (struct rpc_call_fs *)dataout;
|
|
bcopy(datain, &callmsg->fs, sizeof(struct FS3args));
|
|
callmsg->ch.rp_xid = txdr_unsigned(rpcclnt_xid);
|
|
value->xid = callmsg->ch.rp_xid;
|
|
callmsg->ch.rp_direction = rpc_call;
|
|
callmsg->ch.rp_rpcvers = rpc_vers;
|
|
callmsg->ch.rp_prog = txdr_unsigned(prog);
|
|
callmsg->ch.rp_vers = txdr_unsigned(vers);
|
|
callmsg->ch.rp_proc = txdr_unsigned(procid);
|
|
|
|
/* rpc_auth part (auth_unix as root) */
|
|
|
|
callmsg->ch.rpc_auth.authtype = rpc_auth_null;
|
|
//call->rpc_auth.authlen = 0;
|
|
|
|
#ifdef CONFIG_NFS_UNIX_AUTH
|
|
callmsg->ch.rpc_unix.stamp = txdr_unsigned(1);
|
|
callmsg->ch.rpc_unix.hostname = 0;
|
|
callmsg->ch.rpc_unix.uid = setuid;
|
|
callmsg->ch.rpc_unix.gid = setgid;
|
|
callmsg->ch.rpc_unix.gidlist = 0;
|
|
#endif
|
|
/* rpc_verf part (auth_null) */
|
|
|
|
callmsg->ch.rpc_verf.authtype = rpc_auth_null;
|
|
//call->rpc_verf.authlen = 0;
|
|
return 0;
|
|
}
|
|
|
|
case NFSPROC_MKDIR:
|
|
{
|
|
struct rpc_call_mkdir *callmsg = (struct rpc_call_mkdir *)dataout;
|
|
bcopy(datain, &callmsg->mkdir, sizeof(struct MKDIR3args));
|
|
callmsg->ch.rp_xid = txdr_unsigned(rpcclnt_xid);
|
|
value->xid = callmsg->ch.rp_xid;
|
|
callmsg->ch.rp_direction = rpc_call;
|
|
callmsg->ch.rp_rpcvers = rpc_vers;
|
|
callmsg->ch.rp_prog = txdr_unsigned(prog);
|
|
callmsg->ch.rp_vers = txdr_unsigned(vers);
|
|
callmsg->ch.rp_proc = txdr_unsigned(procid);
|
|
|
|
/* rpc_auth part (auth_unix as root) */
|
|
|
|
callmsg->ch.rpc_auth.authtype = rpc_auth_null;
|
|
//call->rpc_auth.authlen = 0;
|
|
|
|
#ifdef CONFIG_NFS_UNIX_AUTH
|
|
callmsg->ch.rpc_unix.stamp = txdr_unsigned(1);
|
|
callmsg->ch.rpc_unix.hostname = 0;
|
|
callmsg->ch.rpc_unix.uid = setuid;
|
|
callmsg->ch.rpc_unix.gid = setgid;
|
|
callmsg->ch.rpc_unix.gidlist = 0;
|
|
#endif
|
|
/* rpc_verf part (auth_null) */
|
|
|
|
callmsg->ch.rpc_verf.authtype = rpc_auth_null;
|
|
//call->rpc_verf.authlen = 0;
|
|
return 0;
|
|
}
|
|
|
|
case NFSPROC_RMDIR:
|
|
{
|
|
struct rpc_call_rmdir *callmsg = (struct rpc_call_rmdir *)dataout;
|
|
bcopy(datain, &callmsg->rmdir, sizeof(struct RMDIR3args));
|
|
callmsg->ch.rp_xid = txdr_unsigned(rpcclnt_xid);
|
|
value->xid = callmsg->ch.rp_xid;
|
|
callmsg->ch.rp_direction = rpc_call;
|
|
callmsg->ch.rp_rpcvers = rpc_vers;
|
|
callmsg->ch.rp_prog = txdr_unsigned(prog);
|
|
callmsg->ch.rp_vers = txdr_unsigned(vers);
|
|
callmsg->ch.rp_proc = txdr_unsigned(procid);
|
|
|
|
/* rpc_auth part (auth_unix as root) */
|
|
|
|
callmsg->ch.rpc_auth.authtype = rpc_auth_null;
|
|
//call->rpc_auth.authlen = 0;
|
|
|
|
#ifdef CONFIG_NFS_UNIX_AUTH
|
|
callmsg->ch.rpc_unix.stamp = txdr_unsigned(1);
|
|
callmsg->ch.rpc_unix.hostname = 0;
|
|
callmsg->ch.rpc_unix.uid = setuid;
|
|
callmsg->ch.rpc_unix.gid = setgid;
|
|
callmsg->ch.rpc_unix.gidlist = 0;
|
|
#endif
|
|
/* rpc_verf part (auth_null) */
|
|
|
|
callmsg->ch.rpc_verf.authtype = rpc_auth_null;
|
|
//call->rpc_verf.authlen = 0;
|
|
return 0;
|
|
}
|
|
|
|
case NFSPROC_RENAME:
|
|
{
|
|
struct rpc_call_rename *callmsg = (struct rpc_call_rename *)dataout;
|
|
bcopy(datain, &callmsg->rename, sizeof(struct RENAME3args));
|
|
callmsg->ch.rp_xid = txdr_unsigned(rpcclnt_xid);
|
|
value->xid = callmsg->ch.rp_xid;
|
|
callmsg->ch.rp_direction = rpc_call;
|
|
callmsg->ch.rp_rpcvers = rpc_vers;
|
|
callmsg->ch.rp_prog = txdr_unsigned(prog);
|
|
callmsg->ch.rp_vers = txdr_unsigned(vers);
|
|
callmsg->ch.rp_proc = txdr_unsigned(procid);
|
|
|
|
/* rpc_auth part (auth_unix as root) */
|
|
|
|
callmsg->ch.rpc_auth.authtype = rpc_auth_null;
|
|
//call->rpc_auth.authlen = 0;
|
|
|
|
#ifdef CONFIG_NFS_UNIX_AUTH
|
|
callmsg->ch.rpc_unix.stamp = txdr_unsigned(1);
|
|
callmsg->ch.rpc_unix.hostname = 0;
|
|
callmsg->ch.rpc_unix.uid = setuid;
|
|
callmsg->ch.rpc_unix.gid = setgid;
|
|
callmsg->ch.rpc_unix.gidlist = 0;
|
|
#endif
|
|
/* rpc_verf part (auth_null) */
|
|
|
|
callmsg->ch.rpc_verf.authtype = rpc_auth_null;
|
|
//call->rpc_verf.authlen = 0;
|
|
return 0;
|
|
}
|
|
|
|
case NFSPROC_FSINFO:
|
|
{
|
|
struct rpc_call_fs *callmsg = (struct rpc_call_fs *)dataout;
|
|
bcopy(datain, &callmsg->fs, sizeof(struct FS3args));
|
|
callmsg->ch.rp_xid = txdr_unsigned(rpcclnt_xid);
|
|
value->xid = callmsg->ch.rp_xid;
|
|
callmsg->ch.rp_direction = rpc_call;
|
|
callmsg->ch.rp_rpcvers = rpc_vers;
|
|
callmsg->ch.rp_prog = txdr_unsigned(prog);
|
|
callmsg->ch.rp_vers = txdr_unsigned(vers);
|
|
callmsg->ch.rp_proc = txdr_unsigned(procid);
|
|
|
|
/* rpc_auth part (auth_unix as root) */
|
|
|
|
callmsg->ch.rpc_auth.authtype = rpc_auth_null;
|
|
//call->rpc_auth.authlen = 0;
|
|
|
|
#ifdef CONFIG_NFS_UNIX_AUTH
|
|
callmsg->ch.rpc_unix.stamp = txdr_unsigned(1);
|
|
callmsg->ch.rpc_unix.hostname = 0;
|
|
callmsg->ch.rpc_unix.uid = setuid;
|
|
callmsg->ch.rpc_unix.gid = setgid;
|
|
callmsg->ch.rpc_unix.gidlist = 0;
|
|
#endif
|
|
/* rpc_verf part (auth_null) */
|
|
|
|
callmsg->ch.rpc_verf.authtype = rpc_auth_null;
|
|
//call->rpc_verf.authlen = 0;
|
|
return 0;
|
|
}
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
return ESRCH;
|
|
}
|
|
|
|
#ifdef COMP
|
|
int rpcclnt_cancelreqs(struct rpcclnt *rpc)
|
|
{
|
|
struct rpctask *task;
|
|
int i;
|
|
|
|
for (task = (struct rpctask *)rpctask_q.head; task;
|
|
task = (struct rpctask *)task->r_chain.flink)
|
|
{
|
|
if (rpc != task->r_rpcclnt || (task->r_flags & TASK_SOFTTERM))
|
|
{
|
|
continue;
|
|
}
|
|
|
|
rpcclnt_softterm(task);
|
|
}
|
|
|
|
for (i = 0; i < 30; i++)
|
|
{
|
|
for (task = (struct rpctask *)&rpctask_q.head; task;
|
|
task = (struct rpctask *)task->r_chain.flink)
|
|
{
|
|
if (rpc == task->r_rpcclnt)
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (task == NULL)
|
|
{
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
return EBUSY;
|
|
}
|
|
#endif
|
|
#endif
|