]> git.decadent.org.uk Git - nfs-utils.git/commitdiff
mount.nfs: Create a common source module for reporting mount errors
authorChuck Lever <chuck.lever@oracle.com>
Mon, 16 Jul 2007 20:28:31 +0000 (16:28 -0400)
committerNeil Brown <neilb@suse.de>
Fri, 20 Jul 2007 06:10:48 +0000 (16:10 +1000)
Clean up, and pre-requisite for subsequent fixes.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Neil Brown <neilb@suse.de>
utils/mount/Makefile.am
utils/mount/error.c [new file with mode: 0644]
utils/mount/error.h [new file with mode: 0644]
utils/mount/mount.c
utils/mount/nfs4mount.c
utils/mount/nfs_mount.h
utils/mount/nfsmount.c
utils/mount/nfsumount.c

index 07e86e4c5e4a1fd3ffe3c9a8470dc5da9824c8d4..ea1a01e712516d79fc6ae8079694e4694f9b586a 100644 (file)
@@ -9,8 +9,11 @@ man5_MANS      = nfs.man
 
 sbin_PROGRAMS  = mount.nfs
 EXTRA_DIST = nfsmount.x $(man8_MANS) $(man5_MANS)
-mount_nfs_SOURCES = mount.c nfsmount.c nfs4mount.c nfsumount.c \
-                 mount_constants.h nfs4_mount.h nfs_mount4.h
+mount_nfs_SOURCES = mount.c error.c \
+                   nfsmount.c nfs4mount.c \
+                   nfsumount.c \
+                   mount_constants.h error.h \
+                   nfs4_mount.h nfs_mount4.h
 
 mount_nfs_LDADD = ../../support/nfs/libnfs.a \
                  ../../support/export/libexport.a
diff --git a/utils/mount/error.c b/utils/mount/error.c
new file mode 100644 (file)
index 0000000..62f6850
--- /dev/null
@@ -0,0 +1,235 @@
+/*
+ * error.c -- Common error handling functions
+ *
+ * Copyright (C) 2007 Oracle.  All rights reserved.
+ * Copyright (C) 2007 Chuck Lever <chuck.lever@oracle.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 of the License, 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.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this program; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 021110-1307, USA.
+ *
+ * To Do:
+ *  + Proper support for internationalization
+ */
+
+#include "config.h"
+#include <unistd.h>
+#include <sys/types.h>
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <syslog.h>
+#include <rpc/rpc.h>
+#include <rpc/pmap_prot.h>
+#include <rpc/pmap_clnt.h>
+
+#include "xcommon.h"
+#include "nls.h"
+#include "mount.h"
+#include "error.h"
+
+#ifdef HAVE_RPCSVC_NFS_PROT_H
+#include <rpcsvc/nfs_prot.h>
+#else
+#include <linux/nfs.h>
+#define nfsstat nfs_stat
+#endif
+
+extern char *progname;
+
+static char errbuf[BUFSIZ];
+static char *erreob = &errbuf[BUFSIZ];
+
+/* Convert RPC errors into strings */
+static int rpc_strerror(int spos)
+{
+       int cf_stat = rpc_createerr.cf_stat;
+       int pos = 0, cf_errno = rpc_createerr.cf_error.re_errno;
+       char *ptr, *estr = clnt_sperrno(cf_stat);
+       char *tmp;
+
+       if (estr) {
+               if ((ptr = index(estr, ':')))
+                       estr = ++ptr;
+
+               tmp = &errbuf[spos];
+               if (cf_stat == RPC_SYSTEMERROR)
+                       pos = snprintf(tmp, (erreob - tmp),
+                               "System Error: %s", strerror(cf_errno));
+               else
+                       pos = snprintf(tmp, (erreob - tmp), "RPC Error:%s", estr);
+       }
+       return pos;
+}
+
+void mount_errors(char *server, int will_retry, int bg)
+{
+       int pos = 0;
+       char *tmp;
+       static int onlyonce = 0;
+
+       tmp = &errbuf[pos];
+       if (bg)
+               pos = snprintf(tmp, (erreob - tmp),
+                       "mount to NFS server '%s' failed: ", server);
+       else
+               pos = snprintf(tmp, (erreob - tmp),
+                       "mount: mount to NFS server '%s' failed: ", server);
+
+       tmp = &errbuf[pos];
+       if (rpc_createerr.cf_stat == RPC_TIMEDOUT) {
+               pos = snprintf(tmp, (erreob - tmp), "timed out %s",
+                       will_retry ? "(retrying)" : "(giving up)");
+       } else {
+               pos += rpc_strerror(pos);
+               tmp = &errbuf[pos];
+               if (bg) {
+                       pos = snprintf(tmp, (erreob - tmp), " %s",
+                               will_retry ? "(retrying)" : "(giving up)");
+               }
+       }
+       if (bg) {
+               if (onlyonce++ < 1)
+                       openlog("mount", LOG_CONS|LOG_PID, LOG_AUTH);
+               syslog(LOG_ERR, "%s.", errbuf);
+       } else
+               fprintf(stderr, "%s.\n", errbuf);
+}
+
+void mount_error(const char *spec, const char *mount_point, int error)
+{
+       switch(error) {
+       case ENOTDIR:
+               nfs_error(_("%s: mount point %s is not a directory"),
+                               progname, mount_point);
+               break;
+       case EBUSY:
+               nfs_error(_("%s: %s is already mounted or busy"),
+                       progname, mount_point);
+               break;
+       case ENOENT:
+               if (spec)
+                       nfs_error(_("%s: mounting %s failed, "
+                               "reason given by server:\n  %s"),
+                               progname, spec, strerror(error));
+               else
+                       nfs_error(_("%s: mount point %s does not exist"),
+                               progname, mount_point);
+               break;
+       default:
+               nfs_error(_("%s: %s"),
+                       progname, strerror(error));
+       }
+}
+
+/*
+ * Report a failed umount
+ */
+void umount_error(int err, const char *dev)
+{
+       switch (err) {
+       case ENXIO:
+               nfs_error(_("%s: %s: invalid block device"),
+                       progname, dev);
+               break;
+       case EINVAL:
+               nfs_error(_("%s: %s: not mounted"),
+                       progname, dev);
+               break;
+       case EIO:
+               nfs_error(_("%s: %s: can't write superblock"),
+                       progname, dev);
+               break;
+       case EBUSY:
+               nfs_error(_("%s: %s: device is busy"),
+                       progname, dev);
+               break;
+       case ENOENT:
+               nfs_error(_("%s: %s: not found"),
+                       progname, dev);
+               break;
+       case EPERM:
+               nfs_error(_("%s: %s: must be superuser to umount"),
+                       progname, dev);
+               break;
+       case EACCES:
+               nfs_error(_("%s: %s: block devices not permitted on fs"),
+                       progname, dev);
+               break;
+       default:
+               nfs_error(_("%s: %s: %s"),
+                       progname, dev, strerror(err));
+               break;
+       }
+}
+
+/*
+ * 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 nfsstat 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             }
+};
+
+char *nfs_strerror(int stat)
+{
+       int i;
+       static char buf[256];
+
+       for (i = 0; nfs_errtbl[i].stat != -1; i++) {
+               if (nfs_errtbl[i].stat == stat)
+                       return strerror(nfs_errtbl[i].errnum);
+       }
+       sprintf(buf, _("unknown nfs status return value: %d"), stat);
+       return buf;
+}
diff --git a/utils/mount/error.h b/utils/mount/error.h
new file mode 100644 (file)
index 0000000..5e4b01b
--- /dev/null
@@ -0,0 +1,28 @@
+/*
+ * error.h:  Common error handling functions
+ *
+ * Copyright (C) 2007 Oracle.  All rights reserved.
+ * Copyright (C) 2007 Chuck Lever <chuck.lever@oracle.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 of the License, 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.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this program; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 021110-1307, USA.
+ *
+ */
+
+char *nfs_strerror(int);
+
+void mount_error(const char *, const char *, int);
+void mount_errors(char *, int, int);
+void umount_error(int, const char *);
index 0149d6bec9dfd5d4ea8c3590cc25c9b91375902c..2dc0aec7ec84249460115c0997c9ab82f3d2db11 100644 (file)
@@ -40,6 +40,7 @@
 #include "nfs4_mount.h"
 #include "nfsumount.h"
 #include "mount.h"
+#include "error.h"
 
 char *progname;
 int nomtab;
@@ -282,44 +283,20 @@ static void parse_opts (const char *options, int *flags, char **extra_opts)
        }
 }
 
-static void mount_error(char *mntpnt, char *node)
-{
-       switch(errno) {
-               case ENOTDIR:
-                       fprintf(stderr, "%s: mount point %s is not a directory\n", 
-                               progname, mntpnt);
-                       break;
-               case EBUSY:
-                       fprintf(stderr, "%s: %s is already mounted or busy\n", 
-                               progname, mntpnt);
-                       break;
-               case ENOENT:
-                       if (node) {
-                               fprintf(stderr, "%s: %s failed, reason given by server: %s\n",
-                                       progname, node, strerror(errno));
-                       } else
-                               fprintf(stderr, "%s: mount point %s does not exist\n", 
-                                       progname, mntpnt);
-                       break;
-               default:
-                       fprintf(stderr, "%s: %s\n", progname, strerror(errno));
-       }
-}
 static int chk_mountpoint(char *mount_point)
 {
        struct stat sb;
 
        if (stat(mount_point, &sb) < 0){
-               mount_error(mount_point, NULL);
+               mount_error(NULL, mount_point, errno);
                return 1;
        }
        if (S_ISDIR(sb.st_mode) == 0){
-               errno = ENOTDIR;
-               mount_error(mount_point, NULL);
+               mount_error(NULL, mount_point, ENOTDIR);
                return 1;
        }
        if (access(mount_point, X_OK) < 0) {
-               mount_error(mount_point, NULL);
+               mount_error(NULL, mount_point, errno);
                return 1;
        }
 
@@ -529,7 +506,7 @@ int main(int argc, char *argv[])
                                           mount_opts);
 
                if (mnt_err) {
-                       mount_error(mount_point, spec);
+                       mount_error(spec, mount_point, errno);
                        exit(EX_FAIL);
                }
        }
index 4f6fc5f87b02fdecc7fc9b2c6fcfe04fee4bdce5..cc6eaf254719678822a811d468a71927e227fb1b 100644 (file)
@@ -43,6 +43,7 @@
 
 #include "nfs4_mount.h"
 #include "nfs_mount.h"
+#include "error.h"
 
 #if defined(VAR_LOCK_DIR)
 #define DEFAULT_DIR VAR_LOCK_DIR
index 50ce2a8300f9d5085130e0b41dc64f1ce7f43ef5..b38aa0fdd14d4ac0c4844a5c247a00f3a69c9257 100644 (file)
@@ -82,6 +82,5 @@ struct nfs_mount_data {
 
 int nfsmount(const char *, const char *, int *, char **, char **,
             int, int *);
-void mount_errors(char *, int, int);
 
 #endif /* _NFS_MOUNT_H */
index f21aaff410133ef0262f78432d1f21c97a38a937..45cdcdaf1c32336c20091d09fb4a319d6fcf46d2 100644 (file)
 #include "nfs_mount.h"
 #include "mount_constants.h"
 #include "nls.h"
-
-#ifdef HAVE_RPCSVC_NFS_PROT_H
-#include <rpcsvc/nfs_prot.h>
-#else
-#include <linux/nfs.h>
-#define nfsstat nfs_stat
-#endif
+#include "error.h"
 
 #ifndef NFS_PORT
 #define NFS_PORT 2049
@@ -79,8 +73,6 @@
 #define NFS_FHSIZE 32
 #endif
 
-static char *nfs_strerror(int stat);
-
 #define MAKE_VERSION(p,q,r)    (65536*(p) + 256*(q) + (r))
 #define MAX_NFSPROT ((nfs_mount_version >= 4) ? 3 : 2)
 #define MAX_MNTPROT ((nfs_mount_version >= 4) ? 3 : 2)
@@ -101,68 +93,9 @@ typedef union {
        mnt3res_t nfsv3;
 } mntres_t;
 
-static char errbuf[BUFSIZ];
-static char *erreob = &errbuf[BUFSIZ];
 extern int verbose;
 extern int sloppy;
 
-/* Convert RPC errors into strings */
-int rpc_strerror(int);
-int rpc_strerror(int spos)
-{
-       int cf_stat = rpc_createerr.cf_stat; 
-       int pos=0, cf_errno = rpc_createerr.cf_error.re_errno;
-       char *ptr, *estr = clnt_sperrno(cf_stat);
-       char *tmp;
-
-       if (estr) {
-               if ((ptr = index(estr, ':')))
-                       estr = ++ptr;
-
-               tmp = &errbuf[spos];
-               if (cf_stat == RPC_SYSTEMERROR)
-                       pos = snprintf(tmp, (erreob - tmp), 
-                               "System Error: %s", strerror(cf_errno));
-               else
-                       pos = snprintf(tmp, (erreob - tmp), "RPC Error:%s", estr);
-       }
-       return (pos);
-}
-void mount_errors(char *, int, int);
-void mount_errors(char *server, int will_retry, int bg)
-{
-       int pos = 0;
-       char *tmp;
-       static int onlyonce = 0;
-
-       tmp = &errbuf[pos];
-       if (bg) 
-               pos = snprintf(tmp, (erreob - tmp), 
-                       "mount to NFS server '%s' failed: ", server);
-       else
-               pos = snprintf(tmp, (erreob - tmp), 
-                       "mount: mount to NFS server '%s' failed: ", server);
-
-       tmp = &errbuf[pos];
-       if (rpc_createerr.cf_stat == RPC_TIMEDOUT) {
-               pos = snprintf(tmp, (erreob - tmp), "timed out %s", 
-                       will_retry ? "(retrying)" : "(giving up)");
-       } else {
-               pos += rpc_strerror(pos);
-               tmp = &errbuf[pos];
-               if (bg) {
-                       pos = snprintf(tmp, (erreob - tmp), " %s",
-                               will_retry ? "(retrying)" : "(giving up)");
-               }
-       }
-       if (bg) {
-               if (onlyonce++ < 1)
-                       openlog("mount", LOG_CONS|LOG_PID, LOG_AUTH);
-               syslog(LOG_ERR, "%s.", errbuf);
-       } else
-               fprintf(stderr, "%s.\n", errbuf);
-}
-
 /* Define the order in which to probe for UDP/TCP services */
 enum plist {
        use_tcp = 0,
@@ -1238,62 +1171,3 @@ noauth_flavors:
                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 nfsstat 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 stat)
-{
-       int i;
-       static char buf[256];
-
-       for (i = 0; nfs_errtbl[i].stat != -1; i++) {
-               if (nfs_errtbl[i].stat == stat)
-                       return strerror(nfs_errtbl[i].errnum);
-       }
-       sprintf(buf, _("unknown nfs status return value: %d"), stat);
-       return buf;
-}
index b9737be23d355b86fd40a66d64adc22542755215..81fd2640cb4e7cb695062fad5ac425f4513ea694 100644 (file)
@@ -34,6 +34,7 @@
 #include "mount_constants.h"
 #include "mount.h"
 #include "nfsumount.h"
+#include "error.h"
 
 #if !defined(MNT_FORCE)
 /* dare not try to include <linux/mount.h> -- lots of errors */
@@ -93,30 +94,6 @@ int nfs_call_umount(clnt_addr_t *mnt_server, dirpath *argp)
        return res;
 }
 
-/* complain about a failed umount */
-static void complain(int err, const char *dev) {
-  switch (err) {
-    case ENXIO:
-      nfs_error (_("umount: %s: invalid block device"), dev); break;
-    case EINVAL:
-      nfs_error (_("umount: %s: not mounted"), dev); break;
-    case EIO:
-      nfs_error (_("umount: %s: can't write superblock"), dev); break;
-    case EBUSY:
-     /* Let us hope fstab has a line "proc /proc ..."
-        and not "none /proc ..."*/
-      nfs_error (_("umount: %s: device is busy"), dev); break;
-    case ENOENT:
-      nfs_error (_("umount: %s: not found"), dev); break;
-    case EPERM:
-      nfs_error (_("umount: %s: must be superuser to umount"), dev); break;
-    case EACCES:
-      nfs_error (_("umount: %s: block devices not permitted on fs"), dev); break;
-    default:
-      nfs_error (_("umount: %s: %s"), dev, strerror (err)); break;
-  }
-}
-
 int del_mtab(const char *spec, const char *node)
 {
        int umnt_err, res;
@@ -183,7 +160,7 @@ int del_mtab(const char *spec, const char *node)
                 return 0;
 
         if (umnt_err)
-                complain(umnt_err, node);
+                umount_error(umnt_err, node);
         return 1;
 }