[821] | 1 | /* vi: set sw=4 ts=4: */
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| 2 | /*
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| 3 | * nfsmount.c -- Linux NFS mount
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| 4 | * Copyright (C) 1993 Rick Sladkey <jrs@world.std.com>
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| 5 | *
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| 6 | * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
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| 7 | *
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| 8 | * Wed Feb 8 12:51:48 1995, biro@yggdrasil.com (Ross Biro): allow all port
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| 9 | * numbers to be specified on the command line.
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| 10 | *
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| 11 | * Fri, 8 Mar 1996 18:01:39, Swen Thuemmler <swen@uni-paderborn.de>:
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| 12 | * Omit the call to connect() for Linux version 1.3.11 or later.
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| 13 | *
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| 14 | * Wed Oct 1 23:55:28 1997: Dick Streefland <dick_streefland@tasking.com>
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| 15 | * Implemented the "bg", "fg" and "retry" mount options for NFS.
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| 16 | *
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| 17 | * 1999-02-22 Arkadiusz Mi¶kiewicz <misiek@misiek.eu.org>
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| 18 | * - added Native Language Support
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| 19 | *
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| 20 | * Modified by Olaf Kirch and Trond Myklebust for new NFS code,
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| 21 | * plus NFSv3 stuff.
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| 22 | */
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| 23 |
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| 24 | /*
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| 25 | * nfsmount.c,v 1.1.1.1 1993/11/18 08:40:51 jrs Exp
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| 26 | */
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| 27 |
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| 28 | #include "busybox.h"
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| 29 | #include <unistd.h>
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| 30 | #include <string.h>
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| 31 | #include <errno.h>
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| 32 | #include <time.h>
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| 33 | #include <sys/utsname.h>
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| 34 | #undef TRUE
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| 35 | #undef FALSE
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| 36 | #include <rpc/rpc.h>
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| 37 | #include <rpc/pmap_prot.h>
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| 38 | #include <rpc/pmap_clnt.h>
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| 39 | #include "nfsmount.h"
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| 40 |
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| 41 | /* This is just a warning of a common mistake. Possibly this should be a
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| 42 | * uclibc faq entry rather than in busybox... */
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| 43 | #if ENABLE_FEATURE_MOUNT_NFS && defined(__UCLIBC__) && ! defined(__UCLIBC_HAS_RPC__)
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| 44 | #error "You need to build uClibc with UCLIBC_HAS_RPC for NFS support."
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| 45 | #endif
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| 46 |
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| 47 |
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| 48 | /*
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| 49 | * NFS stats. The good thing with these values is that NFSv3 errors are
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| 50 | * a superset of NFSv2 errors (with the exception of NFSERR_WFLUSH which
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| 51 | * no-one uses anyway), so we can happily mix code as long as we make sure
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| 52 | * no NFSv3 errors are returned to NFSv2 clients.
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| 53 | * Error codes that have a `--' in the v2 column are not part of the
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| 54 | * standard, but seem to be widely used nevertheless.
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| 55 | */
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| 56 | enum nfs_stat {
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| 57 | NFS_OK = 0, /* v2 v3 */
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| 58 | NFSERR_PERM = 1, /* v2 v3 */
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| 59 | NFSERR_NOENT = 2, /* v2 v3 */
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| 60 | NFSERR_IO = 5, /* v2 v3 */
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| 61 | NFSERR_NXIO = 6, /* v2 v3 */
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| 62 | NFSERR_EAGAIN = 11, /* v2 v3 */
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| 63 | NFSERR_ACCES = 13, /* v2 v3 */
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| 64 | NFSERR_EXIST = 17, /* v2 v3 */
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| 65 | NFSERR_XDEV = 18, /* v3 */
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| 66 | NFSERR_NODEV = 19, /* v2 v3 */
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| 67 | NFSERR_NOTDIR = 20, /* v2 v3 */
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| 68 | NFSERR_ISDIR = 21, /* v2 v3 */
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| 69 | NFSERR_INVAL = 22, /* v2 v3 that Sun forgot */
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| 70 | NFSERR_FBIG = 27, /* v2 v3 */
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| 71 | NFSERR_NOSPC = 28, /* v2 v3 */
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| 72 | NFSERR_ROFS = 30, /* v2 v3 */
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| 73 | NFSERR_MLINK = 31, /* v3 */
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| 74 | NFSERR_OPNOTSUPP = 45, /* v2 v3 */
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| 75 | NFSERR_NAMETOOLONG = 63, /* v2 v3 */
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| 76 | NFSERR_NOTEMPTY = 66, /* v2 v3 */
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| 77 | NFSERR_DQUOT = 69, /* v2 v3 */
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| 78 | NFSERR_STALE = 70, /* v2 v3 */
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| 79 | NFSERR_REMOTE = 71, /* v2 v3 */
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| 80 | NFSERR_WFLUSH = 99, /* v2 */
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| 81 | NFSERR_BADHANDLE = 10001, /* v3 */
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| 82 | NFSERR_NOT_SYNC = 10002, /* v3 */
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| 83 | NFSERR_BAD_COOKIE = 10003, /* v3 */
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| 84 | NFSERR_NOTSUPP = 10004, /* v3 */
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| 85 | NFSERR_TOOSMALL = 10005, /* v3 */
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| 86 | NFSERR_SERVERFAULT = 10006, /* v3 */
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| 87 | NFSERR_BADTYPE = 10007, /* v3 */
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| 88 | NFSERR_JUKEBOX = 10008 /* v3 */
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| 89 | };
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| 90 |
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| 91 | #define NFS_PROGRAM 100003
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| 92 |
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| 93 |
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| 94 | enum {
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| 95 | #ifndef NFS_FHSIZE
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| 96 | NFS_FHSIZE = 32,
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| 97 | #endif
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| 98 | #ifndef NFS_PORT
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| 99 | NFS_PORT = 2049
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| 100 | #endif
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| 101 | };
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| 102 |
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| 103 | /* Disable the nls stuff */
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| 104 | # undef bindtextdomain
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| 105 | # define bindtextdomain(Domain, Directory) /* empty */
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| 106 | # undef textdomain
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| 107 | # define textdomain(Domain) /* empty */
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| 108 |
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| 109 | enum {
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| 110 | S_QUOTA = 128, /* Quota initialized for file/directory/symlink */
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| 111 | };
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| 112 |
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| 113 |
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| 114 | /*
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| 115 | * We want to be able to compile mount on old kernels in such a way
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| 116 | * that the binary will work well on more recent kernels.
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| 117 | * Thus, if necessary we teach nfsmount.c the structure of new fields
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| 118 | * that will come later.
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| 119 | *
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| 120 | * Moreover, the new kernel includes conflict with glibc includes
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| 121 | * so it is easiest to ignore the kernel altogether (at compile time).
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| 122 | */
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| 123 |
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| 124 | /* NOTE: Do not make this into a 'static const int' because the pre-processor
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| 125 | * needs to test this value in some #if statements. */
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| 126 | #define NFS_MOUNT_VERSION 4
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| 127 |
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| 128 | struct nfs2_fh {
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| 129 | char data[32];
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| 130 | };
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| 131 | struct nfs3_fh {
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| 132 | unsigned short size;
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| 133 | unsigned char data[64];
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| 134 | };
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| 135 |
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| 136 | struct nfs_mount_data {
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| 137 | int version; /* 1 */
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| 138 | int fd; /* 1 */
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| 139 | struct nfs2_fh old_root; /* 1 */
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| 140 | int flags; /* 1 */
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| 141 | int rsize; /* 1 */
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| 142 | int wsize; /* 1 */
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| 143 | int timeo; /* 1 */
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| 144 | int retrans; /* 1 */
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| 145 | int acregmin; /* 1 */
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| 146 | int acregmax; /* 1 */
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| 147 | int acdirmin; /* 1 */
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| 148 | int acdirmax; /* 1 */
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| 149 | struct sockaddr_in addr; /* 1 */
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| 150 | char hostname[256]; /* 1 */
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| 151 | int namlen; /* 2 */
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| 152 | unsigned int bsize; /* 3 */
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| 153 | struct nfs3_fh root; /* 4 */
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| 154 | };
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| 155 |
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| 156 | /* bits in the flags field */
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| 157 | enum {
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| 158 | NFS_MOUNT_SOFT = 0x0001, /* 1 */
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| 159 | NFS_MOUNT_INTR = 0x0002, /* 1 */
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| 160 | NFS_MOUNT_SECURE = 0x0004, /* 1 */
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| 161 | NFS_MOUNT_POSIX = 0x0008, /* 1 */
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| 162 | NFS_MOUNT_NOCTO = 0x0010, /* 1 */
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| 163 | NFS_MOUNT_NOAC = 0x0020, /* 1 */
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| 164 | NFS_MOUNT_TCP = 0x0040, /* 2 */
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| 165 | NFS_MOUNT_VER3 = 0x0080, /* 3 */
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| 166 | NFS_MOUNT_KERBEROS = 0x0100, /* 3 */
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| 167 | NFS_MOUNT_NONLM = 0x0200 /* 3 */
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| 168 | };
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| 169 |
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| 170 |
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| 171 | #define UTIL_LINUX_VERSION "2.10m"
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| 172 | #define util_linux_version "util-linux-2.10m"
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| 173 |
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| 174 | #define HAVE_inet_aton
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| 175 | #define HAVE_scsi_h
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| 176 | #define HAVE_blkpg_h
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| 177 | #define HAVE_kd_h
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| 178 | #define HAVE_termcap
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| 179 | #define HAVE_locale_h
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| 180 | #define HAVE_libintl_h
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| 181 | #define ENABLE_NLS
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| 182 | #define HAVE_langinfo_h
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| 183 | #define HAVE_progname
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| 184 | #define HAVE_openpty
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| 185 | #define HAVE_nanosleep
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| 186 | #define HAVE_personality
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| 187 | #define HAVE_tm_gmtoff
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| 188 |
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| 189 | static char *nfs_strerror(int status);
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| 190 |
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| 191 | #define MAX_NFSPROT ((nfs_mount_version >= 4) ? 3 : 2)
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| 192 |
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| 193 | enum {
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| 194 | EX_FAIL = 32, /* mount failure */
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| 195 | EX_BG = 256 /* retry in background (internal only) */
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| 196 | };
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| 197 |
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| 198 |
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| 199 | /*
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| 200 | * nfs_mount_version according to the sources seen at compile time.
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| 201 | */
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| 202 | static int nfs_mount_version;
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| 203 |
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| 204 | /*
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| 205 | * Unfortunately, the kernel prints annoying console messages
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| 206 | * in case of an unexpected nfs mount version (instead of
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| 207 | * just returning some error). Therefore we'll have to try
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| 208 | * and figure out what version the kernel expects.
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| 209 | *
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| 210 | * Variables:
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| 211 | * KERNEL_NFS_MOUNT_VERSION: kernel sources at compile time
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| 212 | * NFS_MOUNT_VERSION: these nfsmount sources at compile time
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| 213 | * nfs_mount_version: version this source and running kernel can handle
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| 214 | */
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| 215 | static void
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| 216 | find_kernel_nfs_mount_version(void)
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| 217 | {
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| 218 | static int kernel_version = 0;
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| 219 |
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| 220 | if (kernel_version)
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| 221 | return;
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| 222 |
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| 223 | nfs_mount_version = NFS_MOUNT_VERSION; /* default */
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| 224 |
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| 225 | kernel_version = get_linux_version_code();
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| 226 | if (kernel_version) {
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| 227 | if (kernel_version < KERNEL_VERSION(2,1,32))
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| 228 | nfs_mount_version = 1;
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| 229 | else if (kernel_version < KERNEL_VERSION(2,2,18) ||
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| 230 | (kernel_version >= KERNEL_VERSION(2,3,0) &&
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| 231 | kernel_version < KERNEL_VERSION(2,3,99)))
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| 232 | nfs_mount_version = 3;
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| 233 | else
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| 234 | nfs_mount_version = 4; /* since 2.3.99pre4 */
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| 235 | }
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| 236 | if (nfs_mount_version > NFS_MOUNT_VERSION)
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| 237 | nfs_mount_version = NFS_MOUNT_VERSION;
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| 238 | }
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| 239 |
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| 240 | static struct pmap *
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| 241 | get_mountport(struct sockaddr_in *server_addr,
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| 242 | long unsigned prog,
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| 243 | long unsigned version,
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| 244 | long unsigned proto,
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| 245 | long unsigned port)
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| 246 | {
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| 247 | struct pmaplist *pmap;
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| 248 | static struct pmap p = {0, 0, 0, 0};
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| 249 |
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| 250 | server_addr->sin_port = PMAPPORT;
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| 251 | pmap = pmap_getmaps(server_addr);
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| 252 |
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| 253 | if (version > MAX_NFSPROT)
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| 254 | version = MAX_NFSPROT;
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| 255 | if (!prog)
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| 256 | prog = MOUNTPROG;
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| 257 | p.pm_prog = prog;
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| 258 | p.pm_vers = version;
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| 259 | p.pm_prot = proto;
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| 260 | p.pm_port = port;
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| 261 |
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| 262 | while (pmap) {
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| 263 | if (pmap->pml_map.pm_prog != prog)
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| 264 | goto next;
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| 265 | if (!version && p.pm_vers > pmap->pml_map.pm_vers)
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| 266 | goto next;
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| 267 | if (version > 2 && pmap->pml_map.pm_vers != version)
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| 268 | goto next;
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| 269 | if (version && version <= 2 && pmap->pml_map.pm_vers > 2)
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| 270 | goto next;
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| 271 | if (pmap->pml_map.pm_vers > MAX_NFSPROT ||
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| 272 | (proto && p.pm_prot && pmap->pml_map.pm_prot != proto) ||
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| 273 | (port && pmap->pml_map.pm_port != port))
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| 274 | goto next;
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| 275 | memcpy(&p, &pmap->pml_map, sizeof(p));
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| 276 | next:
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| 277 | pmap = pmap->pml_next;
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| 278 | }
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| 279 | if (!p.pm_vers)
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| 280 | p.pm_vers = MOUNTVERS;
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| 281 | if (!p.pm_port)
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| 282 | p.pm_port = MOUNTPORT;
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| 283 | if (!p.pm_prot)
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| 284 | p.pm_prot = IPPROTO_TCP;
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| 285 | return &p;
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| 286 | }
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| 287 |
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| 288 | int nfsmount(const char *spec, const char *node, int *flags,
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| 289 | char **mount_opts, int running_bg)
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| 290 | {
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| 291 | static char *prev_bg_host;
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| 292 | char hostdir[1024];
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| 293 | CLIENT *mclient;
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| 294 | char *hostname;
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| 295 | char *pathname;
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| 296 | char *old_opts;
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| 297 | char *mounthost=NULL;
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| 298 | char new_opts[1024];
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| 299 | struct timeval total_timeout;
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| 300 | enum clnt_stat clnt_stat;
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| 301 | struct nfs_mount_data data;
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| 302 | char *opt, *opteq;
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| 303 | int val;
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| 304 | struct hostent *hp;
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| 305 | struct sockaddr_in server_addr;
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| 306 | struct sockaddr_in mount_server_addr;
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| 307 | struct pmap* pm_mnt;
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| 308 | int msock, fsock;
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| 309 | struct timeval retry_timeout;
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| 310 | union {
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| 311 | struct fhstatus nfsv2;
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| 312 | struct mountres3 nfsv3;
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| 313 | } status;
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| 314 | struct stat statbuf;
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| 315 | char *s;
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| 316 | int port;
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| 317 | int mountport;
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| 318 | int proto;
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| 319 | int bg;
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| 320 | int soft;
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| 321 | int intr;
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| 322 | int posix;
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| 323 | int nocto;
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| 324 | int noac;
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| 325 | int nolock;
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| 326 | int retry;
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| 327 | int tcp;
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| 328 | int mountprog;
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| 329 | int mountvers;
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| 330 | int nfsprog;
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| 331 | int nfsvers;
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| 332 | int retval;
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| 333 | time_t t;
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| 334 | time_t prevt;
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| 335 | time_t timeout;
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| 336 |
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| 337 | find_kernel_nfs_mount_version();
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| 338 |
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| 339 | retval = EX_FAIL;
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| 340 | msock = fsock = -1;
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| 341 | mclient = NULL;
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| 342 | if (strlen(spec) >= sizeof(hostdir)) {
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| 343 | bb_error_msg("excessively long host:dir argument");
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| 344 | goto fail;
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| 345 | }
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| 346 | strcpy(hostdir, spec);
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| 347 | if ((s = strchr(hostdir, ':'))) {
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| 348 | hostname = hostdir;
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| 349 | pathname = s + 1;
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| 350 | *s = '\0';
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| 351 | /* Ignore all but first hostname in replicated mounts
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| 352 | until they can be fully supported. (mack@sgi.com) */
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| 353 | if ((s = strchr(hostdir, ','))) {
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| 354 | *s = '\0';
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| 355 | bb_error_msg("warning: multiple hostnames not supported");
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| 356 | }
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| 357 | } else {
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| 358 | bb_error_msg("directory to mount not in host:dir format");
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| 359 | goto fail;
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| 360 | }
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| 361 |
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| 362 | server_addr.sin_family = AF_INET;
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| 363 | #ifdef HAVE_inet_aton
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| 364 | if (!inet_aton(hostname, &server_addr.sin_addr))
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| 365 | #endif
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| 366 | {
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| 367 | if ((hp = gethostbyname(hostname)) == NULL) {
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| 368 | bb_herror_msg("%s", hostname);
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| 369 | goto fail;
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| 370 | } else {
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| 371 | if (hp->h_length > sizeof(struct in_addr)) {
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| 372 | bb_error_msg("got bad hp->h_length");
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| 373 | hp->h_length = sizeof(struct in_addr);
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| 374 | }
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| 375 | memcpy(&server_addr.sin_addr,
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| 376 | hp->h_addr, hp->h_length);
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| 377 | }
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| 378 | }
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| 379 |
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| 380 | memcpy (&mount_server_addr, &server_addr, sizeof (mount_server_addr));
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| 381 |
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| 382 | /* add IP address to mtab options for use when unmounting */
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| 383 |
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| 384 | s = inet_ntoa(server_addr.sin_addr);
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| 385 | old_opts = *mount_opts;
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| 386 | if (!old_opts)
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| 387 | old_opts = "";
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| 388 | if (strlen(old_opts) + strlen(s) + 10 >= sizeof(new_opts)) {
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| 389 | bb_error_msg("excessively long option argument");
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| 390 | goto fail;
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| 391 | }
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| 392 | sprintf(new_opts, "%s%saddr=%s",
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| 393 | old_opts, *old_opts ? "," : "", s);
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| 394 | *mount_opts = bb_xstrdup(new_opts);
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| 395 |
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| 396 | /* Set default options.
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| 397 | * rsize/wsize (and bsize, for ver >= 3) are left 0 in order to
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| 398 | * let the kernel decide.
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| 399 | * timeo is filled in after we know whether it'll be TCP or UDP. */
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| 400 | memset(&data, 0, sizeof(data));
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| 401 | data.retrans = 3;
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| 402 | data.acregmin = 3;
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| 403 | data.acregmax = 60;
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| 404 | data.acdirmin = 30;
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| 405 | data.acdirmax = 60;
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| 406 | #if NFS_MOUNT_VERSION >= 2
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| 407 | data.namlen = NAME_MAX;
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| 408 | #endif
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| 409 |
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| 410 | bg = 0;
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| 411 | soft = 0;
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| 412 | intr = 0;
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| 413 | posix = 0;
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| 414 | nocto = 0;
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| 415 | nolock = 0;
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| 416 | noac = 0;
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| 417 | retry = 10000; /* 10000 minutes ~ 1 week */
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| 418 | tcp = 0;
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| 419 |
|
---|
| 420 | mountprog = MOUNTPROG;
|
---|
| 421 | mountvers = 0;
|
---|
| 422 | port = 0;
|
---|
| 423 | mountport = 0;
|
---|
| 424 | nfsprog = NFS_PROGRAM;
|
---|
| 425 | nfsvers = 0;
|
---|
| 426 |
|
---|
| 427 | /* parse options */
|
---|
| 428 |
|
---|
| 429 | for (opt = strtok(old_opts, ","); opt; opt = strtok(NULL, ",")) {
|
---|
| 430 | if ((opteq = strchr(opt, '='))) {
|
---|
| 431 | val = atoi(opteq + 1);
|
---|
| 432 | *opteq = '\0';
|
---|
| 433 | if (!strcmp(opt, "rsize"))
|
---|
| 434 | data.rsize = val;
|
---|
| 435 | else if (!strcmp(opt, "wsize"))
|
---|
| 436 | data.wsize = val;
|
---|
| 437 | else if (!strcmp(opt, "timeo"))
|
---|
| 438 | data.timeo = val;
|
---|
| 439 | else if (!strcmp(opt, "retrans"))
|
---|
| 440 | data.retrans = val;
|
---|
| 441 | else if (!strcmp(opt, "acregmin"))
|
---|
| 442 | data.acregmin = val;
|
---|
| 443 | else if (!strcmp(opt, "acregmax"))
|
---|
| 444 | data.acregmax = val;
|
---|
| 445 | else if (!strcmp(opt, "acdirmin"))
|
---|
| 446 | data.acdirmin = val;
|
---|
| 447 | else if (!strcmp(opt, "acdirmax"))
|
---|
| 448 | data.acdirmax = val;
|
---|
| 449 | else if (!strcmp(opt, "actimeo")) {
|
---|
| 450 | data.acregmin = val;
|
---|
| 451 | data.acregmax = val;
|
---|
| 452 | data.acdirmin = val;
|
---|
| 453 | data.acdirmax = val;
|
---|
| 454 | }
|
---|
| 455 | else if (!strcmp(opt, "retry"))
|
---|
| 456 | retry = val;
|
---|
| 457 | else if (!strcmp(opt, "port"))
|
---|
| 458 | port = val;
|
---|
| 459 | else if (!strcmp(opt, "mountport"))
|
---|
| 460 | mountport = val;
|
---|
| 461 | else if (!strcmp(opt, "mounthost"))
|
---|
| 462 | mounthost=bb_xstrndup(opteq+1,
|
---|
| 463 | strcspn(opteq+1," \t\n\r,"));
|
---|
| 464 | else if (!strcmp(opt, "mountprog"))
|
---|
| 465 | mountprog = val;
|
---|
| 466 | else if (!strcmp(opt, "mountvers"))
|
---|
| 467 | mountvers = val;
|
---|
| 468 | else if (!strcmp(opt, "nfsprog"))
|
---|
| 469 | nfsprog = val;
|
---|
| 470 | else if (!strcmp(opt, "nfsvers") ||
|
---|
| 471 | !strcmp(opt, "vers"))
|
---|
| 472 | nfsvers = val;
|
---|
| 473 | else if (!strcmp(opt, "proto")) {
|
---|
| 474 | if (!strncmp(opteq+1, "tcp", 3))
|
---|
| 475 | tcp = 1;
|
---|
| 476 | else if (!strncmp(opteq+1, "udp", 3))
|
---|
| 477 | tcp = 0;
|
---|
| 478 | else
|
---|
| 479 | printf("Warning: Unrecognized proto= option.\n");
|
---|
| 480 | } else if (!strcmp(opt, "namlen")) {
|
---|
| 481 | #if NFS_MOUNT_VERSION >= 2
|
---|
| 482 | if (nfs_mount_version >= 2)
|
---|
| 483 | data.namlen = val;
|
---|
| 484 | else
|
---|
| 485 | #endif
|
---|
| 486 | printf("Warning: Option namlen is not supported.\n");
|
---|
| 487 | } else if (!strcmp(opt, "addr"))
|
---|
| 488 | /* ignore */;
|
---|
| 489 | else {
|
---|
| 490 | printf("unknown nfs mount parameter: %s=%d\n", opt, val);
|
---|
| 491 | goto fail;
|
---|
| 492 | }
|
---|
| 493 | }
|
---|
| 494 | else {
|
---|
| 495 | val = 1;
|
---|
| 496 | if (!strncmp(opt, "no", 2)) {
|
---|
| 497 | val = 0;
|
---|
| 498 | opt += 2;
|
---|
| 499 | }
|
---|
| 500 | if (!strcmp(opt, "bg"))
|
---|
| 501 | bg = val;
|
---|
| 502 | else if (!strcmp(opt, "fg"))
|
---|
| 503 | bg = !val;
|
---|
| 504 | else if (!strcmp(opt, "soft"))
|
---|
| 505 | soft = val;
|
---|
| 506 | else if (!strcmp(opt, "hard"))
|
---|
| 507 | soft = !val;
|
---|
| 508 | else if (!strcmp(opt, "intr"))
|
---|
| 509 | intr = val;
|
---|
| 510 | else if (!strcmp(opt, "posix"))
|
---|
| 511 | posix = val;
|
---|
| 512 | else if (!strcmp(opt, "cto"))
|
---|
| 513 | nocto = !val;
|
---|
| 514 | else if (!strcmp(opt, "ac"))
|
---|
| 515 | noac = !val;
|
---|
| 516 | else if (!strcmp(opt, "tcp"))
|
---|
| 517 | tcp = val;
|
---|
| 518 | else if (!strcmp(opt, "udp"))
|
---|
| 519 | tcp = !val;
|
---|
| 520 | else if (!strcmp(opt, "lock")) {
|
---|
| 521 | if (nfs_mount_version >= 3)
|
---|
| 522 | nolock = !val;
|
---|
| 523 | else
|
---|
| 524 | printf("Warning: option nolock is not supported.\n");
|
---|
| 525 | } else {
|
---|
| 526 | printf("unknown nfs mount option: %s%s\n", val ? "" : "no", opt);
|
---|
| 527 | goto fail;
|
---|
| 528 | }
|
---|
| 529 | }
|
---|
| 530 | }
|
---|
| 531 | proto = (tcp) ? IPPROTO_TCP : IPPROTO_UDP;
|
---|
| 532 |
|
---|
| 533 | data.flags = (soft ? NFS_MOUNT_SOFT : 0)
|
---|
| 534 | | (intr ? NFS_MOUNT_INTR : 0)
|
---|
| 535 | | (posix ? NFS_MOUNT_POSIX : 0)
|
---|
| 536 | | (nocto ? NFS_MOUNT_NOCTO : 0)
|
---|
| 537 | | (noac ? NFS_MOUNT_NOAC : 0);
|
---|
| 538 | #if NFS_MOUNT_VERSION >= 2
|
---|
| 539 | if (nfs_mount_version >= 2)
|
---|
| 540 | data.flags |= (tcp ? NFS_MOUNT_TCP : 0);
|
---|
| 541 | #endif
|
---|
| 542 | #if NFS_MOUNT_VERSION >= 3
|
---|
| 543 | if (nfs_mount_version >= 3)
|
---|
| 544 | data.flags |= (nolock ? NFS_MOUNT_NONLM : 0);
|
---|
| 545 | #endif
|
---|
| 546 | if (nfsvers > MAX_NFSPROT || mountvers > MAX_NFSPROT) {
|
---|
| 547 | bb_error_msg("NFSv%d not supported!", nfsvers);
|
---|
| 548 | return 1;
|
---|
| 549 | }
|
---|
| 550 | if (nfsvers && !mountvers)
|
---|
| 551 | mountvers = (nfsvers < 3) ? 1 : nfsvers;
|
---|
| 552 | if (nfsvers && nfsvers < mountvers) {
|
---|
| 553 | mountvers = nfsvers;
|
---|
| 554 | }
|
---|
| 555 |
|
---|
| 556 | /* Adjust options if none specified */
|
---|
| 557 | if (!data.timeo)
|
---|
| 558 | data.timeo = tcp ? 70 : 7;
|
---|
| 559 |
|
---|
| 560 | #ifdef NFS_MOUNT_DEBUG
|
---|
| 561 | printf("rsize = %d, wsize = %d, timeo = %d, retrans = %d\n",
|
---|
| 562 | data.rsize, data.wsize, data.timeo, data.retrans);
|
---|
| 563 | printf("acreg (min, max) = (%d, %d), acdir (min, max) = (%d, %d)\n",
|
---|
| 564 | data.acregmin, data.acregmax, data.acdirmin, data.acdirmax);
|
---|
| 565 | printf("port = %d, bg = %d, retry = %d, flags = %.8x\n",
|
---|
| 566 | port, bg, retry, data.flags);
|
---|
| 567 | printf("mountprog = %d, mountvers = %d, nfsprog = %d, nfsvers = %d\n",
|
---|
| 568 | mountprog, mountvers, nfsprog, nfsvers);
|
---|
| 569 | printf("soft = %d, intr = %d, posix = %d, nocto = %d, noac = %d\n",
|
---|
| 570 | (data.flags & NFS_MOUNT_SOFT) != 0,
|
---|
| 571 | (data.flags & NFS_MOUNT_INTR) != 0,
|
---|
| 572 | (data.flags & NFS_MOUNT_POSIX) != 0,
|
---|
| 573 | (data.flags & NFS_MOUNT_NOCTO) != 0,
|
---|
| 574 | (data.flags & NFS_MOUNT_NOAC) != 0);
|
---|
| 575 | #if NFS_MOUNT_VERSION >= 2
|
---|
| 576 | printf("tcp = %d\n",
|
---|
| 577 | (data.flags & NFS_MOUNT_TCP) != 0);
|
---|
| 578 | #endif
|
---|
| 579 | #endif
|
---|
| 580 |
|
---|
| 581 | data.version = nfs_mount_version;
|
---|
| 582 |
|
---|
| 583 | if (*flags & MS_REMOUNT)
|
---|
| 584 | goto copy_data_and_return;
|
---|
| 585 |
|
---|
| 586 | /*
|
---|
| 587 | * If the previous mount operation on the same host was
|
---|
| 588 | * backgrounded, and the "bg" for this mount is also set,
|
---|
| 589 | * give up immediately, to avoid the initial timeout.
|
---|
| 590 | */
|
---|
| 591 | if (bg && !running_bg &&
|
---|
| 592 | prev_bg_host && strcmp(hostname, prev_bg_host) == 0) {
|
---|
| 593 | if (retry > 0)
|
---|
| 594 | retval = EX_BG;
|
---|
| 595 | return retval;
|
---|
| 596 | }
|
---|
| 597 |
|
---|
| 598 | /* create mount daemon client */
|
---|
| 599 | /* See if the nfs host = mount host. */
|
---|
| 600 | if (mounthost) {
|
---|
| 601 | if (mounthost[0] >= '0' && mounthost[0] <= '9') {
|
---|
| 602 | mount_server_addr.sin_family = AF_INET;
|
---|
| 603 | mount_server_addr.sin_addr.s_addr = inet_addr(hostname);
|
---|
| 604 | } else {
|
---|
| 605 | if ((hp = gethostbyname(mounthost)) == NULL) {
|
---|
| 606 | bb_herror_msg("%s", mounthost);
|
---|
| 607 | goto fail;
|
---|
| 608 | } else {
|
---|
| 609 | if (hp->h_length > sizeof(struct in_addr)) {
|
---|
| 610 | bb_error_msg("got bad hp->h_length?");
|
---|
| 611 | hp->h_length = sizeof(struct in_addr);
|
---|
| 612 | }
|
---|
| 613 | mount_server_addr.sin_family = AF_INET;
|
---|
| 614 | memcpy(&mount_server_addr.sin_addr,
|
---|
| 615 | hp->h_addr, hp->h_length);
|
---|
| 616 | }
|
---|
| 617 | }
|
---|
| 618 | }
|
---|
| 619 |
|
---|
| 620 | /*
|
---|
| 621 | * The following loop implements the mount retries. On the first
|
---|
| 622 | * call, "running_bg" is 0. When the mount times out, and the
|
---|
| 623 | * "bg" option is set, the exit status EX_BG will be returned.
|
---|
| 624 | * For a backgrounded mount, there will be a second call by the
|
---|
| 625 | * child process with "running_bg" set to 1.
|
---|
| 626 | *
|
---|
| 627 | * The case where the mount point is not present and the "bg"
|
---|
| 628 | * option is set, is treated as a timeout. This is done to
|
---|
| 629 | * support nested mounts.
|
---|
| 630 | *
|
---|
| 631 | * The "retry" count specified by the user is the number of
|
---|
| 632 | * minutes to retry before giving up.
|
---|
| 633 | *
|
---|
| 634 | * Only the first error message will be displayed.
|
---|
| 635 | */
|
---|
| 636 | retry_timeout.tv_sec = 3;
|
---|
| 637 | retry_timeout.tv_usec = 0;
|
---|
| 638 | total_timeout.tv_sec = 20;
|
---|
| 639 | total_timeout.tv_usec = 0;
|
---|
| 640 | timeout = time(NULL) + 60 * retry;
|
---|
| 641 | prevt = 0;
|
---|
| 642 | t = 30;
|
---|
| 643 | val = 1;
|
---|
| 644 | for (;;) {
|
---|
| 645 | if (bg && stat(node, &statbuf) == -1) {
|
---|
| 646 | if (running_bg) {
|
---|
| 647 | sleep(val); /* 1, 2, 4, 8, 16, 30, ... */
|
---|
| 648 | val *= 2;
|
---|
| 649 | if (val > 30)
|
---|
| 650 | val = 30;
|
---|
| 651 | }
|
---|
| 652 | } else {
|
---|
| 653 | /* be careful not to use too many CPU cycles */
|
---|
| 654 | if (t - prevt < 30)
|
---|
| 655 | sleep(30);
|
---|
| 656 |
|
---|
| 657 | pm_mnt = get_mountport(&mount_server_addr,
|
---|
| 658 | mountprog,
|
---|
| 659 | mountvers,
|
---|
| 660 | proto,
|
---|
| 661 | mountport);
|
---|
| 662 |
|
---|
| 663 | /* contact the mount daemon via TCP */
|
---|
| 664 | mount_server_addr.sin_port = htons(pm_mnt->pm_port);
|
---|
| 665 | msock = RPC_ANYSOCK;
|
---|
| 666 |
|
---|
| 667 | switch (pm_mnt->pm_prot) {
|
---|
| 668 | case IPPROTO_UDP:
|
---|
| 669 | mclient = clntudp_create(&mount_server_addr,
|
---|
| 670 | pm_mnt->pm_prog,
|
---|
| 671 | pm_mnt->pm_vers,
|
---|
| 672 | retry_timeout,
|
---|
| 673 | &msock);
|
---|
| 674 | if (mclient)
|
---|
| 675 | break;
|
---|
| 676 | mount_server_addr.sin_port = htons(pm_mnt->pm_port);
|
---|
| 677 | msock = RPC_ANYSOCK;
|
---|
| 678 | case IPPROTO_TCP:
|
---|
| 679 | mclient = clnttcp_create(&mount_server_addr,
|
---|
| 680 | pm_mnt->pm_prog,
|
---|
| 681 | pm_mnt->pm_vers,
|
---|
| 682 | &msock, 0, 0);
|
---|
| 683 | break;
|
---|
| 684 | default:
|
---|
| 685 | mclient = 0;
|
---|
| 686 | }
|
---|
| 687 | if (mclient) {
|
---|
| 688 | /* try to mount hostname:pathname */
|
---|
| 689 | mclient->cl_auth = authunix_create_default();
|
---|
| 690 |
|
---|
| 691 | /* make pointers in xdr_mountres3 NULL so
|
---|
| 692 | * that xdr_array allocates memory for us
|
---|
| 693 | */
|
---|
| 694 | memset(&status, 0, sizeof(status));
|
---|
| 695 |
|
---|
| 696 | if (pm_mnt->pm_vers == 3)
|
---|
| 697 | clnt_stat = clnt_call(mclient, MOUNTPROC3_MNT,
|
---|
| 698 | (xdrproc_t) xdr_dirpath,
|
---|
| 699 | (caddr_t) &pathname,
|
---|
| 700 | (xdrproc_t) xdr_mountres3,
|
---|
| 701 | (caddr_t) &status,
|
---|
| 702 | total_timeout);
|
---|
| 703 | else
|
---|
| 704 | clnt_stat = clnt_call(mclient, MOUNTPROC_MNT,
|
---|
| 705 | (xdrproc_t) xdr_dirpath,
|
---|
| 706 | (caddr_t) &pathname,
|
---|
| 707 | (xdrproc_t) xdr_fhstatus,
|
---|
| 708 | (caddr_t) &status,
|
---|
| 709 | total_timeout);
|
---|
| 710 |
|
---|
| 711 | if (clnt_stat == RPC_SUCCESS)
|
---|
| 712 | break; /* we're done */
|
---|
| 713 | if (errno != ECONNREFUSED) {
|
---|
| 714 | clnt_perror(mclient, "mount");
|
---|
| 715 | goto fail; /* don't retry */
|
---|
| 716 | }
|
---|
| 717 | if (!running_bg && prevt == 0)
|
---|
| 718 | clnt_perror(mclient, "mount");
|
---|
| 719 | auth_destroy(mclient->cl_auth);
|
---|
| 720 | clnt_destroy(mclient);
|
---|
| 721 | mclient = 0;
|
---|
| 722 | close(msock);
|
---|
| 723 | } else {
|
---|
| 724 | if (!running_bg && prevt == 0)
|
---|
| 725 | clnt_pcreateerror("mount");
|
---|
| 726 | }
|
---|
| 727 | prevt = t;
|
---|
| 728 | }
|
---|
| 729 | if (!bg)
|
---|
| 730 | goto fail;
|
---|
| 731 | if (!running_bg) {
|
---|
| 732 | prev_bg_host = bb_xstrdup(hostname);
|
---|
| 733 | if (retry > 0)
|
---|
| 734 | retval = EX_BG;
|
---|
| 735 | goto fail;
|
---|
| 736 | }
|
---|
| 737 | t = time(NULL);
|
---|
| 738 | if (t >= timeout)
|
---|
| 739 | goto fail;
|
---|
| 740 | }
|
---|
| 741 | nfsvers = (pm_mnt->pm_vers < 2) ? 2 : pm_mnt->pm_vers;
|
---|
| 742 |
|
---|
| 743 | if (nfsvers == 2) {
|
---|
| 744 | if (status.nfsv2.fhs_status != 0) {
|
---|
| 745 | bb_error_msg("%s:%s failed, reason given by server: %s",
|
---|
| 746 | hostname, pathname,
|
---|
| 747 | nfs_strerror(status.nfsv2.fhs_status));
|
---|
| 748 | goto fail;
|
---|
| 749 | }
|
---|
| 750 | memcpy(data.root.data,
|
---|
| 751 | (char *) status.nfsv2.fhstatus_u.fhs_fhandle,
|
---|
| 752 | NFS_FHSIZE);
|
---|
| 753 | #if NFS_MOUNT_VERSION >= 4
|
---|
| 754 | data.root.size = NFS_FHSIZE;
|
---|
| 755 | memcpy(data.old_root.data,
|
---|
| 756 | (char *) status.nfsv2.fhstatus_u.fhs_fhandle,
|
---|
| 757 | NFS_FHSIZE);
|
---|
| 758 | #endif
|
---|
| 759 | } else {
|
---|
| 760 | #if NFS_MOUNT_VERSION >= 4
|
---|
| 761 | fhandle3 *my_fhandle;
|
---|
| 762 | if (status.nfsv3.fhs_status != 0) {
|
---|
| 763 | bb_error_msg("%s:%s failed, reason given by server: %s",
|
---|
| 764 | hostname, pathname,
|
---|
| 765 | nfs_strerror(status.nfsv3.fhs_status));
|
---|
| 766 | goto fail;
|
---|
| 767 | }
|
---|
| 768 | my_fhandle = &status.nfsv3.mountres3_u.mountinfo.fhandle;
|
---|
| 769 | memset(data.old_root.data, 0, NFS_FHSIZE);
|
---|
| 770 | memset(&data.root, 0, sizeof(data.root));
|
---|
| 771 | data.root.size = my_fhandle->fhandle3_len;
|
---|
| 772 | memcpy(data.root.data,
|
---|
| 773 | (char *) my_fhandle->fhandle3_val,
|
---|
| 774 | my_fhandle->fhandle3_len);
|
---|
| 775 |
|
---|
| 776 | data.flags |= NFS_MOUNT_VER3;
|
---|
| 777 | #endif
|
---|
| 778 | }
|
---|
| 779 |
|
---|
| 780 | /* create nfs socket for kernel */
|
---|
| 781 |
|
---|
| 782 | if (tcp) {
|
---|
| 783 | if (nfs_mount_version < 3) {
|
---|
| 784 | printf("NFS over TCP is not supported.\n");
|
---|
| 785 | goto fail;
|
---|
| 786 | }
|
---|
| 787 | fsock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
|
---|
| 788 | } else
|
---|
| 789 | fsock = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
|
---|
| 790 | if (fsock < 0) {
|
---|
| 791 | perror("nfs socket");
|
---|
| 792 | goto fail;
|
---|
| 793 | }
|
---|
| 794 | if (bindresvport(fsock, 0) < 0) {
|
---|
| 795 | perror("nfs bindresvport");
|
---|
| 796 | goto fail;
|
---|
| 797 | }
|
---|
| 798 | if (port == 0) {
|
---|
| 799 | server_addr.sin_port = PMAPPORT;
|
---|
| 800 | port = pmap_getport(&server_addr, nfsprog, nfsvers,
|
---|
| 801 | tcp ? IPPROTO_TCP : IPPROTO_UDP);
|
---|
| 802 | if (port == 0)
|
---|
| 803 | port = NFS_PORT;
|
---|
| 804 | #ifdef NFS_MOUNT_DEBUG
|
---|
| 805 | else
|
---|
| 806 | printf("used portmapper to find NFS port\n");
|
---|
| 807 | #endif
|
---|
| 808 | }
|
---|
| 809 | #ifdef NFS_MOUNT_DEBUG
|
---|
| 810 | printf("using port %d for nfs daemon\n", port);
|
---|
| 811 | #endif
|
---|
| 812 | server_addr.sin_port = htons(port);
|
---|
| 813 | /*
|
---|
| 814 | * connect() the socket for kernels 1.3.10 and below only,
|
---|
| 815 | * to avoid problems with multihomed hosts.
|
---|
| 816 | * --Swen
|
---|
| 817 | */
|
---|
| 818 | if (get_linux_version_code() <= KERNEL_VERSION(2,3,10)
|
---|
| 819 | && connect(fsock, (struct sockaddr *) &server_addr,
|
---|
| 820 | sizeof (server_addr)) < 0) {
|
---|
| 821 | perror("nfs connect");
|
---|
| 822 | goto fail;
|
---|
| 823 | }
|
---|
| 824 |
|
---|
| 825 | /* prepare data structure for kernel */
|
---|
| 826 |
|
---|
| 827 | data.fd = fsock;
|
---|
| 828 | memcpy((char *) &data.addr, (char *) &server_addr, sizeof(data.addr));
|
---|
| 829 | strncpy(data.hostname, hostname, sizeof(data.hostname));
|
---|
| 830 |
|
---|
| 831 | /* clean up */
|
---|
| 832 |
|
---|
| 833 | auth_destroy(mclient->cl_auth);
|
---|
| 834 | clnt_destroy(mclient);
|
---|
| 835 | close(msock);
|
---|
| 836 | copy_data_and_return:
|
---|
| 837 | *mount_opts = xrealloc(*mount_opts, sizeof(data));
|
---|
| 838 | memcpy(*mount_opts, &data, sizeof(data));
|
---|
| 839 | return 0;
|
---|
| 840 |
|
---|
| 841 | /* abort */
|
---|
| 842 |
|
---|
| 843 | fail:
|
---|
| 844 | if (msock != -1) {
|
---|
| 845 | if (mclient) {
|
---|
| 846 | auth_destroy(mclient->cl_auth);
|
---|
| 847 | clnt_destroy(mclient);
|
---|
| 848 | }
|
---|
| 849 | close(msock);
|
---|
| 850 | }
|
---|
| 851 | if (fsock != -1)
|
---|
| 852 | close(fsock);
|
---|
| 853 | return retval;
|
---|
| 854 | }
|
---|
| 855 |
|
---|
| 856 | /*
|
---|
| 857 | * We need to translate between nfs status return values and
|
---|
| 858 | * the local errno values which may not be the same.
|
---|
| 859 | *
|
---|
| 860 | * Andreas Schwab <schwab@LS5.informatik.uni-dortmund.de>: change errno:
|
---|
| 861 | * "after #include <errno.h> the symbol errno is reserved for any use,
|
---|
| 862 | * it cannot even be used as a struct tag or field name".
|
---|
| 863 | */
|
---|
| 864 |
|
---|
| 865 | #ifndef EDQUOT
|
---|
| 866 | #define EDQUOT ENOSPC
|
---|
| 867 | #endif
|
---|
| 868 |
|
---|
| 869 | static const struct {
|
---|
| 870 | enum nfs_stat stat;
|
---|
| 871 | int errnum;
|
---|
| 872 | } nfs_errtbl[] = {
|
---|
| 873 | { NFS_OK, 0 },
|
---|
| 874 | { NFSERR_PERM, EPERM },
|
---|
| 875 | { NFSERR_NOENT, ENOENT },
|
---|
| 876 | { NFSERR_IO, EIO },
|
---|
| 877 | { NFSERR_NXIO, ENXIO },
|
---|
| 878 | { NFSERR_ACCES, EACCES },
|
---|
| 879 | { NFSERR_EXIST, EEXIST },
|
---|
| 880 | { NFSERR_NODEV, ENODEV },
|
---|
| 881 | { NFSERR_NOTDIR, ENOTDIR },
|
---|
| 882 | { NFSERR_ISDIR, EISDIR },
|
---|
| 883 | #ifdef NFSERR_INVAL
|
---|
| 884 | { NFSERR_INVAL, EINVAL }, /* that Sun forgot */
|
---|
| 885 | #endif
|
---|
| 886 | { NFSERR_FBIG, EFBIG },
|
---|
| 887 | { NFSERR_NOSPC, ENOSPC },
|
---|
| 888 | { NFSERR_ROFS, EROFS },
|
---|
| 889 | { NFSERR_NAMETOOLONG, ENAMETOOLONG },
|
---|
| 890 | { NFSERR_NOTEMPTY, ENOTEMPTY },
|
---|
| 891 | { NFSERR_DQUOT, EDQUOT },
|
---|
| 892 | { NFSERR_STALE, ESTALE },
|
---|
| 893 | #ifdef EWFLUSH
|
---|
| 894 | { NFSERR_WFLUSH, EWFLUSH },
|
---|
| 895 | #endif
|
---|
| 896 | /* Throw in some NFSv3 values for even more fun (HP returns these) */
|
---|
| 897 | { 71, EREMOTE },
|
---|
| 898 |
|
---|
| 899 | { -1, EIO }
|
---|
| 900 | };
|
---|
| 901 |
|
---|
| 902 | static char *nfs_strerror(int status)
|
---|
| 903 | {
|
---|
| 904 | int i;
|
---|
| 905 | static char buf[256];
|
---|
| 906 |
|
---|
| 907 | for (i = 0; nfs_errtbl[i].stat != -1; i++) {
|
---|
| 908 | if (nfs_errtbl[i].stat == status)
|
---|
| 909 | return strerror(nfs_errtbl[i].errnum);
|
---|
| 910 | }
|
---|
| 911 | sprintf(buf, "unknown nfs status return value: %d", status);
|
---|
| 912 | return buf;
|
---|
| 913 | }
|
---|
| 914 |
|
---|
| 915 | static bool_t
|
---|
| 916 | xdr_fhandle (XDR *xdrs, fhandle objp)
|
---|
| 917 | {
|
---|
| 918 | if (!xdr_opaque (xdrs, objp, FHSIZE))
|
---|
| 919 | return FALSE;
|
---|
| 920 | return TRUE;
|
---|
| 921 | }
|
---|
| 922 |
|
---|
| 923 | bool_t
|
---|
| 924 | xdr_fhstatus (XDR *xdrs, fhstatus *objp)
|
---|
| 925 | {
|
---|
| 926 | if (!xdr_u_int (xdrs, &objp->fhs_status))
|
---|
| 927 | return FALSE;
|
---|
| 928 | switch (objp->fhs_status) {
|
---|
| 929 | case 0:
|
---|
| 930 | if (!xdr_fhandle (xdrs, objp->fhstatus_u.fhs_fhandle))
|
---|
| 931 | return FALSE;
|
---|
| 932 | break;
|
---|
| 933 | default:
|
---|
| 934 | break;
|
---|
| 935 | }
|
---|
| 936 | return TRUE;
|
---|
| 937 | }
|
---|
| 938 |
|
---|
| 939 | bool_t
|
---|
| 940 | xdr_dirpath (XDR *xdrs, dirpath *objp)
|
---|
| 941 | {
|
---|
| 942 | if (!xdr_string (xdrs, objp, MNTPATHLEN))
|
---|
| 943 | return FALSE;
|
---|
| 944 | return TRUE;
|
---|
| 945 | }
|
---|
| 946 |
|
---|
| 947 | bool_t
|
---|
| 948 | xdr_fhandle3 (XDR *xdrs, fhandle3 *objp)
|
---|
| 949 | {
|
---|
| 950 | if (!xdr_bytes (xdrs, (char **)&objp->fhandle3_val, (unsigned int *) &objp->fhandle3_len, FHSIZE3))
|
---|
| 951 | return FALSE;
|
---|
| 952 | return TRUE;
|
---|
| 953 | }
|
---|
| 954 |
|
---|
| 955 | bool_t
|
---|
| 956 | xdr_mountres3_ok (XDR *xdrs, mountres3_ok *objp)
|
---|
| 957 | {
|
---|
| 958 | if (!xdr_fhandle3 (xdrs, &objp->fhandle))
|
---|
| 959 | return FALSE;
|
---|
| 960 | if (!xdr_array (xdrs, &(objp->auth_flavours.auth_flavours_val), &(objp->auth_flavours.auth_flavours_len), ~0,
|
---|
| 961 | sizeof (int), (xdrproc_t) xdr_int))
|
---|
| 962 | return FALSE;
|
---|
| 963 | return TRUE;
|
---|
| 964 | }
|
---|
| 965 |
|
---|
| 966 | bool_t
|
---|
| 967 | xdr_mountstat3 (XDR *xdrs, mountstat3 *objp)
|
---|
| 968 | {
|
---|
| 969 | if (!xdr_enum (xdrs, (enum_t *) objp))
|
---|
| 970 | return FALSE;
|
---|
| 971 | return TRUE;
|
---|
| 972 | }
|
---|
| 973 |
|
---|
| 974 | bool_t
|
---|
| 975 | xdr_mountres3 (XDR *xdrs, mountres3 *objp)
|
---|
| 976 | {
|
---|
| 977 | if (!xdr_mountstat3 (xdrs, &objp->fhs_status))
|
---|
| 978 | return FALSE;
|
---|
| 979 | switch (objp->fhs_status) {
|
---|
| 980 | case MNT_OK:
|
---|
| 981 | if (!xdr_mountres3_ok (xdrs, &objp->mountres3_u.mountinfo))
|
---|
| 982 | return FALSE;
|
---|
| 983 | break;
|
---|
| 984 | default:
|
---|
| 985 | break;
|
---|
| 986 | }
|
---|
| 987 | return TRUE;
|
---|
| 988 | }
|
---|
| 989 |
|
---|