summaryrefslogtreecommitdiff
path: root/nfsmount.c
diff options
context:
space:
mode:
Diffstat (limited to 'nfsmount.c')
-rw-r--r--nfsmount.c977
1 files changed, 0 insertions, 977 deletions
diff --git a/nfsmount.c b/nfsmount.c
deleted file mode 100644
index cd722ac..0000000
--- a/nfsmount.c
+++ /dev/null
@@ -1,977 +0,0 @@
-/* vi: set sw=4 ts=4: */
-/*
- * nfsmount.c -- Linux NFS mount
- * Copyright (C) 1993 Rick Sladkey <jrs@world.std.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * Wed Feb 8 12:51:48 1995, biro@yggdrasil.com (Ross Biro): allow all port
- * numbers to be specified on the command line.
- *
- * Fri, 8 Mar 1996 18:01:39, Swen Thuemmler <swen@uni-paderborn.de>:
- * Omit the call to connect() for Linux version 1.3.11 or later.
- *
- * Wed Oct 1 23:55:28 1997: Dick Streefland <dick_streefland@tasking.com>
- * Implemented the "bg", "fg" and "retry" mount options for NFS.
- *
- * 1999-02-22 Arkadiusz Mi¶kiewicz <misiek@misiek.eu.org>
- * - added Native Language Support
- *
- * Modified by Olaf Kirch and Trond Myklebust for new NFS code,
- * plus NFSv3 stuff.
- */
-
-/*
- * nfsmount.c,v 1.1.1.1 1993/11/18 08:40:51 jrs Exp
- */
-
-#include <unistd.h>
-#include <stdio.h>
-#include <string.h>
-#include <errno.h>
-#include <netdb.h>
-#include <sys/socket.h>
-#include <time.h>
-#include <sys/utsname.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-#include <stdlib.h>
-#include "busybox.h"
-#undef TRUE
-#undef FALSE
-#include <rpc/rpc.h>
-#include <rpc/pmap_prot.h>
-#include <rpc/pmap_clnt.h>
-#include <linux/nfs.h> /* For the kernels nfs stuff */
-#include "nfsmount.h"
-
-#ifndef NFS_FHSIZE
-static const int NFS_FHSIZE = 32;
-#endif
-#ifndef NFS_PORT
-static const int NFS_PORT = 2049;
-#endif
-
-/* Disable the nls stuff */
-# undef bindtextdomain
-# define bindtextdomain(Domain, Directory) /* empty */
-# undef textdomain
-# define textdomain(Domain) /* empty */
-# define _(Text) (Text)
-# define N_(Text) (Text)
-
-static const int MS_MGC_VAL = 0xc0ed0000; /* Magic number indicatng "new" flags */
-static const int MS_RDONLY = 1; /* Mount read-only */
-static const int MS_NOSUID = 2; /* Ignore suid and sgid bits */
-static const int MS_NODEV = 4; /* Disallow access to device special files */
-static const int MS_NOEXEC = 8; /* Disallow program execution */
-static const int MS_SYNCHRONOUS = 16; /* Writes are synced at once */
-static const int MS_REMOUNT = 32; /* Alter flags of a mounted FS */
-static const int MS_MANDLOCK = 64; /* Allow mandatory locks on an FS */
-static const int S_QUOTA = 128; /* Quota initialized for file/directory/symlink */
-static const int S_APPEND = 256; /* Append-only file */
-static const int S_IMMUTABLE = 512; /* Immutable file */
-static const int MS_NOATIME = 1024; /* Do not update access times. */
-static const int MS_NODIRATIME = 2048; /* Do not update directory access times */
-
-
-/*
- * We want to be able to compile mount on old kernels in such a way
- * that the binary will work well on more recent kernels.
- * Thus, if necessary we teach nfsmount.c the structure of new fields
- * that will come later.
- *
- * Moreover, the new kernel includes conflict with glibc includes
- * so it is easiest to ignore the kernel altogether (at compile time).
- */
-
-/* NOTE: Do not make this into a 'static const int' because the pre-processor
- * needs to test this value in some #if statements. */
-#define NFS_MOUNT_VERSION 4
-
-struct nfs2_fh {
- char data[32];
-};
-struct nfs3_fh {
- unsigned short size;
- unsigned char data[64];
-};
-
-struct nfs_mount_data {
- int version; /* 1 */
- int fd; /* 1 */
- struct nfs2_fh old_root; /* 1 */
- int flags; /* 1 */
- int rsize; /* 1 */
- int wsize; /* 1 */
- int timeo; /* 1 */
- int retrans; /* 1 */
- int acregmin; /* 1 */
- int acregmax; /* 1 */
- int acdirmin; /* 1 */
- int acdirmax; /* 1 */
- struct sockaddr_in addr; /* 1 */
- char hostname[256]; /* 1 */
- int namlen; /* 2 */
- unsigned int bsize; /* 3 */
- struct nfs3_fh root; /* 4 */
-};
-
-/* bits in the flags field */
-
-static const int NFS_MOUNT_SOFT = 0x0001; /* 1 */
-static const int NFS_MOUNT_INTR = 0x0002; /* 1 */
-static const int NFS_MOUNT_SECURE = 0x0004; /* 1 */
-static const int NFS_MOUNT_POSIX = 0x0008; /* 1 */
-static const int NFS_MOUNT_NOCTO = 0x0010; /* 1 */
-static const int NFS_MOUNT_NOAC = 0x0020; /* 1 */
-static const int NFS_MOUNT_TCP = 0x0040; /* 2 */
-static const int NFS_MOUNT_VER3 = 0x0080; /* 3 */
-static const int NFS_MOUNT_KERBEROS = 0x0100; /* 3 */
-static const int NFS_MOUNT_NONLM = 0x0200; /* 3 */
-
-
-#define UTIL_LINUX_VERSION "2.10m"
-#define util_linux_version "util-linux-2.10m"
-
-#define HAVE_inet_aton
-#define HAVE_scsi_h
-#define HAVE_blkpg_h
-#define HAVE_kd_h
-#define HAVE_termcap
-#define HAVE_locale_h
-#define HAVE_libintl_h
-#define ENABLE_NLS
-#define HAVE_langinfo_h
-#define HAVE_progname
-#define HAVE_openpty
-#define HAVE_nanosleep
-#define HAVE_personality
-#define HAVE_tm_gmtoff
-
-static char *nfs_strerror(int status);
-
-#define MAKE_VERSION(p,q,r) (65536*(p) + 256*(q) + (r))
-#define MAX_NFSPROT ((nfs_mount_version >= 4) ? 3 : 2)
-
-static const int EX_FAIL = 32; /* mount failure */
-static const int EX_BG = 256; /* retry in background (internal only) */
-
-
-/*
- * nfs_mount_version according to the sources seen at compile time.
- */
-static int nfs_mount_version;
-
-/*
- * Unfortunately, the kernel prints annoying console messages
- * in case of an unexpected nfs mount version (instead of
- * just returning some error). Therefore we'll have to try
- * and figure out what version the kernel expects.
- *
- * Variables:
- * KERNEL_NFS_MOUNT_VERSION: kernel sources at compile time
- * NFS_MOUNT_VERSION: these nfsmount sources at compile time
- * nfs_mount_version: version this source and running kernel can handle
- */
-static void
-find_kernel_nfs_mount_version(void)
-{
- static int kernel_version = 0;
-
- if (kernel_version)
- return;
-
- nfs_mount_version = NFS_MOUNT_VERSION; /* default */
-
- kernel_version = get_kernel_revision();
- if (kernel_version) {
- if (kernel_version < MAKE_VERSION(2,1,32))
- nfs_mount_version = 1;
- else if (kernel_version < MAKE_VERSION(2,2,18) ||
- (kernel_version >= MAKE_VERSION(2,3,0) &&
- kernel_version < MAKE_VERSION(2,3,99)))
- nfs_mount_version = 3;
- else
- nfs_mount_version = 4; /* since 2.3.99pre4 */
- }
- if (nfs_mount_version > NFS_MOUNT_VERSION)
- nfs_mount_version = NFS_MOUNT_VERSION;
-}
-
-static struct pmap *
-get_mountport(struct sockaddr_in *server_addr,
- long unsigned prog,
- long unsigned version,
- long unsigned proto,
- long unsigned port)
-{
-struct pmaplist *pmap;
-static struct pmap p = {0, 0, 0, 0};
-
-server_addr->sin_port = PMAPPORT;
-pmap = pmap_getmaps(server_addr);
-
-if (version > MAX_NFSPROT)
- version = MAX_NFSPROT;
-if (!prog)
- prog = MOUNTPROG;
-p.pm_prog = prog;
-p.pm_vers = version;
-p.pm_prot = proto;
-p.pm_port = port;
-
-while (pmap) {
- if (pmap->pml_map.pm_prog != prog)
- goto next;
- if (!version && p.pm_vers > pmap->pml_map.pm_vers)
- goto next;
- if (version > 2 && pmap->pml_map.pm_vers != version)
- goto next;
- if (version && version <= 2 && pmap->pml_map.pm_vers > 2)
- goto next;
- if (pmap->pml_map.pm_vers > MAX_NFSPROT ||
- (proto && p.pm_prot && pmap->pml_map.pm_prot != proto) ||
- (port && pmap->pml_map.pm_port != port))
- goto next;
- memcpy(&p, &pmap->pml_map, sizeof(p));
-next:
- pmap = pmap->pml_next;
-}
-if (!p.pm_vers)
- p.pm_vers = MOUNTVERS;
-if (!p.pm_port)
- p.pm_port = MOUNTPORT;
-if (!p.pm_prot)
- p.pm_prot = IPPROTO_TCP;
-return &p;
-}
-
-int nfsmount(const char *spec, const char *node, int *flags,
- char **extra_opts, char **mount_opts, int running_bg)
-{
- static char *prev_bg_host;
- char hostdir[1024];
- CLIENT *mclient;
- char *hostname;
- char *pathname;
- char *old_opts;
- char *mounthost=NULL;
- char new_opts[1024];
- struct timeval total_timeout;
- enum clnt_stat clnt_stat;
- static struct nfs_mount_data data;
- char *opt, *opteq;
- int val;
- struct hostent *hp;
- struct sockaddr_in server_addr;
- struct sockaddr_in mount_server_addr;
- struct pmap* pm_mnt;
- int msock, fsock;
- struct timeval retry_timeout;
- union {
- struct fhstatus nfsv2;
- struct mountres3 nfsv3;
- } status;
- struct stat statbuf;
- char *s;
- int port;
- int mountport;
- int proto;
- int bg;
- int soft;
- int intr;
- int posix;
- int nocto;
- int noac;
- int nolock;
- int retry;
- int tcp;
- int mountprog;
- int mountvers;
- int nfsprog;
- int nfsvers;
- int retval;
- time_t t;
- time_t prevt;
- time_t timeout;
-
- find_kernel_nfs_mount_version();
-
- retval = EX_FAIL;
- msock = fsock = -1;
- mclient = NULL;
- if (strlen(spec) >= sizeof(hostdir)) {
- error_msg("excessively long host:dir argument");
- goto fail;
- }
- strcpy(hostdir, spec);
- if ((s = strchr(hostdir, ':'))) {
- hostname = hostdir;
- pathname = s + 1;
- *s = '\0';
- /* Ignore all but first hostname in replicated mounts
- until they can be fully supported. (mack@sgi.com) */
- if ((s = strchr(hostdir, ','))) {
- *s = '\0';
- error_msg("warning: multiple hostnames not supported");
- }
- } else {
- error_msg("directory to mount not in host:dir format");
- goto fail;
- }
-
- server_addr.sin_family = AF_INET;
-#ifdef HAVE_inet_aton
- if (!inet_aton(hostname, &server_addr.sin_addr))
-#endif
- {
- if ((hp = gethostbyname(hostname)) == NULL) {
- herror_msg("%s", hostname);
- goto fail;
- } else {
- if (hp->h_length > sizeof(struct in_addr)) {
- error_msg("got bad hp->h_length");
- hp->h_length = sizeof(struct in_addr);
- }
- memcpy(&server_addr.sin_addr,
- hp->h_addr, hp->h_length);
- }
- }
-
- memcpy (&mount_server_addr, &server_addr, sizeof (mount_server_addr));
-
- /* add IP address to mtab options for use when unmounting */
-
- s = inet_ntoa(server_addr.sin_addr);
- old_opts = *extra_opts;
- if (!old_opts)
- old_opts = "";
- if (strlen(old_opts) + strlen(s) + 10 >= sizeof(new_opts)) {
- error_msg("excessively long option argument");
- goto fail;
- }
- sprintf(new_opts, "%s%saddr=%s",
- old_opts, *old_opts ? "," : "", s);
- *extra_opts = xstrdup(new_opts);
-
- /* Set default options.
- * rsize/wsize (and bsize, for ver >= 3) are left 0 in order to
- * let the kernel decide.
- * timeo is filled in after we know whether it'll be TCP or UDP. */
- memset(&data, 0, sizeof(data));
- data.retrans = 3;
- data.acregmin = 3;
- data.acregmax = 60;
- data.acdirmin = 30;
- data.acdirmax = 60;
-#if NFS_MOUNT_VERSION >= 2
- data.namlen = NAME_MAX;
-#endif
-
- bg = 0;
- soft = 0;
- intr = 0;
- posix = 0;
- nocto = 0;
- nolock = 0;
- noac = 0;
- retry = 10000; /* 10000 minutes ~ 1 week */
- tcp = 0;
-
- mountprog = MOUNTPROG;
- mountvers = 0;
- port = 0;
- mountport = 0;
- nfsprog = NFS_PROGRAM;
- nfsvers = 0;
-
- /* parse options */
-
- for (opt = strtok(old_opts, ","); opt; opt = strtok(NULL, ",")) {
- if ((opteq = strchr(opt, '='))) {
- val = atoi(opteq + 1);
- *opteq = '\0';
- if (!strcmp(opt, "rsize"))
- data.rsize = val;
- else if (!strcmp(opt, "wsize"))
- data.wsize = val;
- else if (!strcmp(opt, "timeo"))
- data.timeo = val;
- else if (!strcmp(opt, "retrans"))
- data.retrans = val;
- else if (!strcmp(opt, "acregmin"))
- data.acregmin = val;
- else if (!strcmp(opt, "acregmax"))
- data.acregmax = val;
- else if (!strcmp(opt, "acdirmin"))
- data.acdirmin = val;
- else if (!strcmp(opt, "acdirmax"))
- data.acdirmax = val;
- else if (!strcmp(opt, "actimeo")) {
- data.acregmin = val;
- data.acregmax = val;
- data.acdirmin = val;
- data.acdirmax = val;
- }
- else if (!strcmp(opt, "retry"))
- retry = val;
- else if (!strcmp(opt, "port"))
- port = val;
- else if (!strcmp(opt, "mountport"))
- mountport = val;
- else if (!strcmp(opt, "mounthost"))
- mounthost=xstrndup(opteq+1,
- strcspn(opteq+1," \t\n\r,"));
- else if (!strcmp(opt, "mountprog"))
- mountprog = val;
- else if (!strcmp(opt, "mountvers"))
- mountvers = val;
- else if (!strcmp(opt, "nfsprog"))
- nfsprog = val;
- else if (!strcmp(opt, "nfsvers") ||
- !strcmp(opt, "vers"))
- nfsvers = val;
- else if (!strcmp(opt, "proto")) {
- if (!strncmp(opteq+1, "tcp", 3))
- tcp = 1;
- else if (!strncmp(opteq+1, "udp", 3))
- tcp = 0;
- else
- printf(_("Warning: Unrecognized proto= option.\n"));
- } else if (!strcmp(opt, "namlen")) {
-#if NFS_MOUNT_VERSION >= 2
- if (nfs_mount_version >= 2)
- data.namlen = val;
- else
-#endif
- printf(_("Warning: Option namlen is not supported.\n"));
- } else if (!strcmp(opt, "addr"))
- /* ignore */;
- else {
- printf(_("unknown nfs mount parameter: "
- "%s=%d\n"), opt, val);
- goto fail;
- }
- }
- else {
- val = 1;
- if (!strncmp(opt, "no", 2)) {
- val = 0;
- opt += 2;
- }
- if (!strcmp(opt, "bg"))
- bg = val;
- else if (!strcmp(opt, "fg"))
- bg = !val;
- else if (!strcmp(opt, "soft"))
- soft = val;
- else if (!strcmp(opt, "hard"))
- soft = !val;
- else if (!strcmp(opt, "intr"))
- intr = val;
- else if (!strcmp(opt, "posix"))
- posix = val;
- else if (!strcmp(opt, "cto"))
- nocto = !val;
- else if (!strcmp(opt, "ac"))
- noac = !val;
- else if (!strcmp(opt, "tcp"))
- tcp = val;
- else if (!strcmp(opt, "udp"))
- tcp = !val;
- else if (!strcmp(opt, "lock")) {
- if (nfs_mount_version >= 3)
- nolock = !val;
- else
- printf(_("Warning: option nolock is not supported.\n"));
- } else {
- printf(_("unknown nfs mount option: "
- "%s%s\n"), val ? "" : "no", opt);
- goto fail;
- }
- }
- }
- proto = (tcp) ? IPPROTO_TCP : IPPROTO_UDP;
-
- data.flags = (soft ? NFS_MOUNT_SOFT : 0)
- | (intr ? NFS_MOUNT_INTR : 0)
- | (posix ? NFS_MOUNT_POSIX : 0)
- | (nocto ? NFS_MOUNT_NOCTO : 0)
- | (noac ? NFS_MOUNT_NOAC : 0);
-#if NFS_MOUNT_VERSION >= 2
- if (nfs_mount_version >= 2)
- data.flags |= (tcp ? NFS_MOUNT_TCP : 0);
-#endif
-#if NFS_MOUNT_VERSION >= 3
- if (nfs_mount_version >= 3)
- data.flags |= (nolock ? NFS_MOUNT_NONLM : 0);
-#endif
- if (nfsvers > MAX_NFSPROT) {
- error_msg("NFSv%d not supported!", nfsvers);
- return 0;
- }
- if (mountvers > MAX_NFSPROT) {
- error_msg("NFSv%d not supported!", nfsvers);
- return 0;
- }
- if (nfsvers && !mountvers)
- mountvers = (nfsvers < 3) ? 1 : nfsvers;
- if (nfsvers && nfsvers < mountvers) {
- mountvers = nfsvers;
- }
-
- /* Adjust options if none specified */
- if (!data.timeo)
- data.timeo = tcp ? 70 : 7;
-
-#ifdef NFS_MOUNT_DEBUG
- printf("rsize = %d, wsize = %d, timeo = %d, retrans = %d\n",
- data.rsize, data.wsize, data.timeo, data.retrans);
- printf("acreg (min, max) = (%d, %d), acdir (min, max) = (%d, %d)\n",
- data.acregmin, data.acregmax, data.acdirmin, data.acdirmax);
- printf("port = %d, bg = %d, retry = %d, flags = %.8x\n",
- port, bg, retry, data.flags);
- printf("mountprog = %d, mountvers = %d, nfsprog = %d, nfsvers = %d\n",
- mountprog, mountvers, nfsprog, nfsvers);
- printf("soft = %d, intr = %d, posix = %d, nocto = %d, noac = %d\n",
- (data.flags & NFS_MOUNT_SOFT) != 0,
- (data.flags & NFS_MOUNT_INTR) != 0,
- (data.flags & NFS_MOUNT_POSIX) != 0,
- (data.flags & NFS_MOUNT_NOCTO) != 0,
- (data.flags & NFS_MOUNT_NOAC) != 0);
-#if NFS_MOUNT_VERSION >= 2
- printf("tcp = %d\n",
- (data.flags & NFS_MOUNT_TCP) != 0);
-#endif
-#endif
-
- data.version = nfs_mount_version;
- *mount_opts = (char *) &data;
-
- if (*flags & MS_REMOUNT)
- return 0;
-
- /*
- * If the previous mount operation on the same host was
- * backgrounded, and the "bg" for this mount is also set,
- * give up immediately, to avoid the initial timeout.
- */
- if (bg && !running_bg &&
- prev_bg_host && strcmp(hostname, prev_bg_host) == 0) {
- if (retry > 0)
- retval = EX_BG;
- return retval;
- }
-
- /* create mount deamon client */
- /* See if the nfs host = mount host. */
- if (mounthost) {
- if (mounthost[0] >= '0' && mounthost[0] <= '9') {
- mount_server_addr.sin_family = AF_INET;
- mount_server_addr.sin_addr.s_addr = inet_addr(hostname);
- } else {
- if ((hp = gethostbyname(mounthost)) == NULL) {
- herror_msg("%s", mounthost);
- goto fail;
- } else {
- if (hp->h_length > sizeof(struct in_addr)) {
- error_msg("got bad hp->h_length?");
- hp->h_length = sizeof(struct in_addr);
- }
- mount_server_addr.sin_family = AF_INET;
- memcpy(&mount_server_addr.sin_addr,
- hp->h_addr, hp->h_length);
- }
- }
- }
-
- /*
- * The following loop implements the mount retries. On the first
- * call, "running_bg" is 0. When the mount times out, and the
- * "bg" option is set, the exit status EX_BG will be returned.
- * For a backgrounded mount, there will be a second call by the
- * child process with "running_bg" set to 1.
- *
- * The case where the mount point is not present and the "bg"
- * option is set, is treated as a timeout. This is done to
- * support nested mounts.
- *
- * The "retry" count specified by the user is the number of
- * minutes to retry before giving up.
- *
- * Only the first error message will be displayed.
- */
- retry_timeout.tv_sec = 3;
- retry_timeout.tv_usec = 0;
- total_timeout.tv_sec = 20;
- total_timeout.tv_usec = 0;
- timeout = time(NULL) + 60 * retry;
- prevt = 0;
- t = 30;
- val = 1;
- for (;;) {
- if (bg && stat(node, &statbuf) == -1) {
- if (running_bg) {
- sleep(val); /* 1, 2, 4, 8, 16, 30, ... */
- val *= 2;
- if (val > 30)
- val = 30;
- }
- } else {
- /* be careful not to use too many CPU cycles */
- if (t - prevt < 30)
- sleep(30);
-
- pm_mnt = get_mountport(&mount_server_addr,
- mountprog,
- mountvers,
- proto,
- mountport);
-
- /* contact the mount daemon via TCP */
- mount_server_addr.sin_port = htons(pm_mnt->pm_port);
- msock = RPC_ANYSOCK;
-
- switch (pm_mnt->pm_prot) {
- case IPPROTO_UDP:
- mclient = clntudp_create(&mount_server_addr,
- pm_mnt->pm_prog,
- pm_mnt->pm_vers,
- retry_timeout,
- &msock);
- if (mclient)
- break;
- mount_server_addr.sin_port = htons(pm_mnt->pm_port);
- msock = RPC_ANYSOCK;
- case IPPROTO_TCP:
- mclient = clnttcp_create(&mount_server_addr,
- pm_mnt->pm_prog,
- pm_mnt->pm_vers,
- &msock, 0, 0);
- break;
- default:
- mclient = 0;
- }
- if (mclient) {
- /* try to mount hostname:pathname */
- mclient->cl_auth = authunix_create_default();
-
- /* make pointers in xdr_mountres3 NULL so
- * that xdr_array allocates memory for us
- */
- memset(&status, 0, sizeof(status));
-
- if (pm_mnt->pm_vers == 3)
- clnt_stat = clnt_call(mclient, MOUNTPROC3_MNT,
- (xdrproc_t) xdr_dirpath,
- (caddr_t) &pathname,
- (xdrproc_t) xdr_mountres3,
- (caddr_t) &status,
- total_timeout);
- else
- clnt_stat = clnt_call(mclient, MOUNTPROC_MNT,
- (xdrproc_t) xdr_dirpath,
- (caddr_t) &pathname,
- (xdrproc_t) xdr_fhstatus,
- (caddr_t) &status,
- total_timeout);
-
- if (clnt_stat == RPC_SUCCESS)
- break; /* we're done */
- if (errno != ECONNREFUSED) {
- clnt_perror(mclient, "mount");
- goto fail; /* don't retry */
- }
- if (!running_bg && prevt == 0)
- clnt_perror(mclient, "mount");
- auth_destroy(mclient->cl_auth);
- clnt_destroy(mclient);
- mclient = 0;
- close(msock);
- } else {
- if (!running_bg && prevt == 0)
- clnt_pcreateerror("mount");
- }
- prevt = t;
- }
- if (!bg)
- goto fail;
- if (!running_bg) {
- prev_bg_host = xstrdup(hostname);
- if (retry > 0)
- retval = EX_BG;
- goto fail;
- }
- t = time(NULL);
- if (t >= timeout)
- goto fail;
- }
- nfsvers = (pm_mnt->pm_vers < 2) ? 2 : pm_mnt->pm_vers;
-
- if (nfsvers == 2) {
- if (status.nfsv2.fhs_status != 0) {
- error_msg("%s:%s failed, reason given by server: %s",
- hostname, pathname,
- nfs_strerror(status.nfsv2.fhs_status));
- goto fail;
- }
- memcpy(data.root.data,
- (char *) status.nfsv2.fhstatus_u.fhs_fhandle,
- NFS_FHSIZE);
-#if NFS_MOUNT_VERSION >= 4
- data.root.size = NFS_FHSIZE;
- memcpy(data.old_root.data,
- (char *) status.nfsv2.fhstatus_u.fhs_fhandle,
- NFS_FHSIZE);
-#endif
- } else {
-#if NFS_MOUNT_VERSION >= 4
- fhandle3 *my_fhandle;
- if (status.nfsv3.fhs_status != 0) {
- error_msg("%s:%s failed, reason given by server: %s",
- hostname, pathname,
- nfs_strerror(status.nfsv3.fhs_status));
- goto fail;
- }
- my_fhandle = &status.nfsv3.mountres3_u.mountinfo.fhandle;
- memset(data.old_root.data, 0, NFS_FHSIZE);
- memset(&data.root, 0, sizeof(data.root));
- data.root.size = my_fhandle->fhandle3_len;
- memcpy(data.root.data,
- (char *) my_fhandle->fhandle3_val,
- my_fhandle->fhandle3_len);
-
- data.flags |= NFS_MOUNT_VER3;
-#endif
- }
-
- /* create nfs socket for kernel */
-
- if (tcp) {
- if (nfs_mount_version < 3) {
- printf(_("NFS over TCP is not supported.\n"));
- goto fail;
- }
- fsock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
- } else
- fsock = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
- if (fsock < 0) {
- perror(_("nfs socket"));
- goto fail;
- }
- if (bindresvport(fsock, 0) < 0) {
- perror(_("nfs bindresvport"));
- goto fail;
- }
- if (port == 0) {
- server_addr.sin_port = PMAPPORT;
- port = pmap_getport(&server_addr, nfsprog, nfsvers,
- tcp ? IPPROTO_TCP : IPPROTO_UDP);
- if (port == 0)
- port = NFS_PORT;
-#ifdef NFS_MOUNT_DEBUG
- else
- printf(_("used portmapper to find NFS port\n"));
-#endif
- }
-#ifdef NFS_MOUNT_DEBUG
- printf(_("using port %d for nfs deamon\n"), port);
-#endif
- server_addr.sin_port = htons(port);
- /*
- * connect() the socket for kernels 1.3.10 and below only,
- * to avoid problems with multihomed hosts.
- * --Swen
- */
- if (get_kernel_revision() <= 66314
- && connect(fsock, (struct sockaddr *) &server_addr,
- sizeof (server_addr)) < 0) {
- perror(_("nfs connect"));
- goto fail;
- }
-
- /* prepare data structure for kernel */
-
- data.fd = fsock;
- memcpy((char *) &data.addr, (char *) &server_addr, sizeof(data.addr));
- strncpy(data.hostname, hostname, sizeof(data.hostname));
-
- /* clean up */
-
- auth_destroy(mclient->cl_auth);
- clnt_destroy(mclient);
- close(msock);
- return 0;
-
- /* abort */
-
-fail:
- if (msock != -1) {
- if (mclient) {
- auth_destroy(mclient->cl_auth);
- clnt_destroy(mclient);
- }
- close(msock);
- }
- if (fsock != -1)
- close(fsock);
- return retval;
-}
-
-/*
- * We need to translate between nfs status return values and
- * the local errno values which may not be the same.
- *
- * Andreas Schwab <schwab@LS5.informatik.uni-dortmund.de>: change errno:
- * "after #include <errno.h> the symbol errno is reserved for any use,
- * it cannot even be used as a struct tag or field name".
- */
-
-#ifndef EDQUOT
-#define EDQUOT ENOSPC
-#endif
-
-static struct {
- enum nfs_stat stat;
- int errnum;
-} nfs_errtbl[] = {
- { NFS_OK, 0 },
- { NFSERR_PERM, EPERM },
- { NFSERR_NOENT, ENOENT },
- { NFSERR_IO, EIO },
- { NFSERR_NXIO, ENXIO },
- { NFSERR_ACCES, EACCES },
- { NFSERR_EXIST, EEXIST },
- { NFSERR_NODEV, ENODEV },
- { NFSERR_NOTDIR, ENOTDIR },
- { NFSERR_ISDIR, EISDIR },
-#ifdef NFSERR_INVAL
- { NFSERR_INVAL, EINVAL }, /* that Sun forgot */
-#endif
- { NFSERR_FBIG, EFBIG },
- { NFSERR_NOSPC, ENOSPC },
- { NFSERR_ROFS, EROFS },
- { NFSERR_NAMETOOLONG, ENAMETOOLONG },
- { NFSERR_NOTEMPTY, ENOTEMPTY },
- { NFSERR_DQUOT, EDQUOT },
- { NFSERR_STALE, ESTALE },
-#ifdef EWFLUSH
- { NFSERR_WFLUSH, EWFLUSH },
-#endif
- /* Throw in some NFSv3 values for even more fun (HP returns these) */
- { 71, EREMOTE },
-
- { -1, EIO }
-};
-
-static char *nfs_strerror(int status)
-{
- int i;
- static char buf[256];
-
- for (i = 0; nfs_errtbl[i].stat != -1; i++) {
- if (nfs_errtbl[i].stat == status)
- return strerror(nfs_errtbl[i].errnum);
- }
- sprintf(buf, _("unknown nfs status return value: %d"), status);
- return buf;
-}
-
-static bool_t
-xdr_fhandle (XDR *xdrs, fhandle objp)
-{
- //register int32_t *buf;
-
- if (!xdr_opaque (xdrs, objp, FHSIZE))
- return FALSE;
- return TRUE;
-}
-
-bool_t
-xdr_fhstatus (XDR *xdrs, fhstatus *objp)
-{
- //register int32_t *buf;
-
- if (!xdr_u_int (xdrs, &objp->fhs_status))
- return FALSE;
- switch (objp->fhs_status) {
- case 0:
- if (!xdr_fhandle (xdrs, objp->fhstatus_u.fhs_fhandle))
- return FALSE;
- break;
- default:
- break;
- }
- return TRUE;
-}
-
-bool_t
-xdr_dirpath (XDR *xdrs, dirpath *objp)
-{
- //register int32_t *buf;
-
- if (!xdr_string (xdrs, objp, MNTPATHLEN))
- return FALSE;
- return TRUE;
-}
-
-bool_t
-xdr_fhandle3 (XDR *xdrs, fhandle3 *objp)
-{
- //register int32_t *buf;
-
- if (!xdr_bytes (xdrs, (char **)&objp->fhandle3_val, (u_int *) &objp->fhandle3_len, FHSIZE3))
- return FALSE;
- return TRUE;
-}
-
-bool_t
-xdr_mountres3_ok (XDR *xdrs, mountres3_ok *objp)
-{
- //register int32_t *buf;
-
- if (!xdr_fhandle3 (xdrs, &objp->fhandle))
- return FALSE;
- if (!xdr_array (xdrs, (char **)&objp->auth_flavours.auth_flavours_val, (u_int *) &objp->auth_flavours.auth_flavours_len, ~0,
- sizeof (int), (xdrproc_t) xdr_int))
- return FALSE;
- return TRUE;
-}
-
-bool_t
-xdr_mountstat3 (XDR *xdrs, mountstat3 *objp)
-{
- //register int32_t *buf;
-
- if (!xdr_enum (xdrs, (enum_t *) objp))
- return FALSE;
- return TRUE;
-}
-
-bool_t
-xdr_mountres3 (XDR *xdrs, mountres3 *objp)
-{
- //register int32_t *buf;
-
- if (!xdr_mountstat3 (xdrs, &objp->fhs_status))
- return FALSE;
- switch (objp->fhs_status) {
- case MNT_OK:
- if (!xdr_mountres3_ok (xdrs, &objp->mountres3_u.mountinfo))
- return FALSE;
- break;
- default:
- break;
- }
- return TRUE;
-}
-
generated by cgit v1.1 at 2024-12-27 07:17:32 +0000