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-rw-r--r--Makefile.am2
-rw-r--r--configure.ac24
-rw-r--r--contrib/Makefile.am3
-rw-r--r--contrib/fuse-lib/mount.c94
-rw-r--r--contrib/fuse-util/COPYING340
-rw-r--r--contrib/fuse-util/Makefile.am12
-rw-r--r--contrib/fuse-util/fusermount.c965
-rw-r--r--contrib/fuse-util/mount_util.h17
-rw-r--r--xlators/mount/fuse/src/Makefile.am5
9 files changed, 1454 insertions, 8 deletions
diff --git a/Makefile.am b/Makefile.am
index b4f0587..44506df 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -1,6 +1,6 @@
EXTRA_DIST = autogen.sh COPYING INSTALL README AUTHORS THANKS NEWS glusterfs.spec
-SUBDIRS = argp-standalone libglusterfs $(LIBGLUSTERFSCLIENT_SUBDIR) xlators scheduler transport auth glusterfsd $(GF_BOOSTER_SUBDIR) doc extras
+SUBDIRS = argp-standalone libglusterfs $(LIBGLUSTERFSCLIENT_SUBDIR) xlators scheduler transport auth glusterfsd $(GF_BOOSTER_SUBDIR) $(FUSERMOUNT_SUBDIR) doc extras
CLEANFILES =
diff --git a/configure.ac b/configure.ac
index 0347eb0..6a95109 100644
--- a/configure.ac
+++ b/configure.ac
@@ -124,6 +124,8 @@ AC_CONFIG_FILES([Makefile
extras/init.d/glusterfsd-Redhat
extras/init.d/glusterfsd-SuSE
extras/benchmarking/Makefile
+ contrib/Makefile
+ contrib/fuse-util/Makefile
glusterfs.spec])
AC_CANONICAL_HOST
@@ -216,6 +218,24 @@ AC_SUBST(FUSE_CLIENT_SUBDIR)
# end FUSE section
+# FUSERMOUNT section
+AC_ARG_ENABLE([fusermount],
+ AC_HELP_STRING([--enable-fusermount],
+ [Build fusermount]),
+ [], [enable_fusermount=no])
+
+BUILD_FUSERMOUNT="no"
+
+if test "x$enable_fusermount" != "xno"; then
+ FUSERMOUNT_SUBDIR="contrib"
+ BUILD_FUSERMOUNT="yes"
+ AC_DEFINE(GF_FUSERMOUNT, 1, [Use our own fusermount])
+fi
+
+AC_SUBST(FUSERMOUNT_SUBDIR)
+#end FUSERMOUNT section
+
+
# EPOLL section
AC_ARG_ENABLE([epoll],
AC_HELP_STRING([--disable-epoll],
@@ -454,6 +474,9 @@ AC_SUBST(GF_LDADD)
AC_SUBST(GF_FUSE_LDADD)
AC_SUBST(GF_BOOSTER_SUBDIR)
+CONTRIBDIR='$(top_srcdir)/contrib'
+AC_SUBST(CONTRIBDIR)
+
AM_CONDITIONAL([GF_DARWIN_HOST_OS], test "${GF_HOST_OS}" = "GF_DARWIN_HOST_OS")
AC_OUTPUT
@@ -467,4 +490,5 @@ echo "epoll IO multiplex : $BUILD_EPOLL"
echo "Berkeley-DB : $BUILD_BDB"
echo "libglusterfsclient : $BUILD_LIBGLUSTERFSCLIENT"
echo "argp-standalone : $BUILD_ARGP_STANDALONE"
+echo "fusermount : $BUILD_FUSERMOUNT"
echo
diff --git a/contrib/Makefile.am b/contrib/Makefile.am
new file mode 100644
index 0000000..a3d5cfb
--- /dev/null
+++ b/contrib/Makefile.am
@@ -0,0 +1,3 @@
+SUBDIRS = fuse-util
+
+CLEANFILES =
diff --git a/contrib/fuse-lib/mount.c b/contrib/fuse-lib/mount.c
index c9e2035..c6de436 100644
--- a/contrib/fuse-lib/mount.c
+++ b/contrib/fuse-lib/mount.c
@@ -7,28 +7,46 @@
See the file COPYING.LIB.
*/
+#ifndef _CONFIG_H
+#define _CONFIG_H
+#include "config.h"
+#endif
+
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <stddef.h>
+#include <limits.h>
#include <fcntl.h>
#include <errno.h>
+#include <dirent.h>
#include <mntent.h>
+#include <sys/stat.h>
#include <sys/poll.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <sys/wait.h>
#include <sys/mount.h>
+#ifdef FUSE_UTIL
+#define MALLOC(size) malloc (size)
+#define FREE(ptr) free (ptr)
+#define GFFUSE_LOGERR(...) fprintf (stderr, ## __VA_ARGS__)
+#else /* FUSE_UTIL */
#include "glusterfs.h"
#include "logging.h"
#include "common-utils.h"
+#ifdef GF_FUSERMOUNT
+#define FUSERMOUNT_PROG FUSERMOUNT_DIR "/fusermount-glusterfs"
+#else
#define FUSERMOUNT_PROG "fusermount"
+#endif
#define FUSE_COMMFD_ENV "_FUSE_COMMFD"
#define GFFUSE_LOGERR(...) \
gf_log ("glusterfs-fuse", GF_LOG_ERROR, ## __VA_ARGS__)
+#endif /* !FUSE_UTIL */
/*
* Functions below, until following note, were taken from libfuse
@@ -74,7 +92,10 @@ mtab_needs_update (const char *mnt)
return 1;
}
-static int
+#ifndef FUSE_UTIL
+static
+#endif
+int
fuse_mnt_add_mount (const char *progname, const char *fsname,
const char *mnt, const char *type, const char *opts)
{
@@ -141,7 +162,10 @@ fuse_mnt_add_mount (const char *progname, const char *fsname,
return res;
}
-static char
+#ifndef FUSE_UTIL
+static
+#endif
+char
*fuse_mnt_resolve_path (const char *progname, const char *orig)
{
char buf[PATH_MAX];
@@ -208,6 +232,7 @@ static char
return dst;
}
+#ifndef FUSE_UTIL
/* return value:
* >= 0 => fd
* -1 => error
@@ -305,8 +330,12 @@ fuse_mount_fusermount (const char *mountpoint, const char *opts)
return rv;
}
+#endif
-static int
+#ifndef FUSE_UTIL
+static
+#endif
+int
fuse_mnt_umount (const char *progname, const char *mnt, int lazy)
{
int res;
@@ -357,6 +386,62 @@ fuse_mnt_umount (const char *progname, const char *mnt, int lazy)
return res;
}
+#ifdef FUSE_UTIL
+int
+fuse_mnt_check_empty (const char *progname, const char *mnt,
+ mode_t rootmode, off_t rootsize)
+{
+ int isempty = 1;
+
+ if (S_ISDIR (rootmode)) {
+ struct dirent *ent;
+ DIR *dp = opendir (mnt);
+ if (dp == NULL) {
+ fprintf (stderr,
+ "%s: failed to open mountpoint for reading: %s\n",
+ progname, strerror (errno));
+ return -1;
+ }
+ while ((ent = readdir (dp)) != NULL) {
+ if (strcmp (ent->d_name, ".") != 0 &&
+ strcmp (ent->d_name, "..") != 0) {
+ isempty = 0;
+ break;
+ }
+ }
+ closedir (dp);
+ } else if (rootsize)
+ isempty = 0;
+
+ if (!isempty) {
+ fprintf (stderr, "%s: mountpoint is not empty\n", progname);
+ fprintf (stderr, "%s: if you are sure this is safe, "
+ "use the 'nonempty' mount option\n", progname);
+ return -1;
+ }
+ return 0;
+}
+
+int
+fuse_mnt_check_fuseblk (void)
+{
+ char buf[256];
+ FILE *f = fopen ("/proc/filesystems", "r");
+ if (!f)
+ return 1;
+
+ while (fgets (buf, sizeof (buf), f))
+ if (strstr (buf, "fuseblk\n")) {
+ fclose (f);
+ return 1;
+ }
+
+ fclose (f);
+ return 0;
+}
+#endif
+
+#ifndef FUSE_UTIL
void
gf_fuse_unmount (const char *mountpoint, int fd)
{
@@ -404,11 +489,13 @@ gf_fuse_unmount (const char *mountpoint, int fd)
}
waitpid (pid, NULL, 0);
}
+#endif
/*
* Functions below are loosely modelled after similar functions of libfuse
*/
+#ifndef FUSE_UTIL
static int
fuse_mount_sys (const char *mountpoint, char *fsname, char *mnt_param)
{
@@ -526,3 +613,4 @@ gf_fuse_mount (const char *mountpoint, char *fsname, char *mnt_param)
return fd;
}
+#endif
diff --git a/contrib/fuse-util/COPYING b/contrib/fuse-util/COPYING
new file mode 100644
index 0000000..d60c31a
--- /dev/null
+++ b/contrib/fuse-util/COPYING
@@ -0,0 +1,340 @@
+ GNU GENERAL PUBLIC LICENSE
+ Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.
+ 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+ Preamble
+
+ The licenses for most software are designed to take away your
+freedom to share and change it. By contrast, the GNU General Public
+License is intended to guarantee your freedom to share and change free
+software--to make sure the software is free for all its users. This
+General Public License applies to most of the Free Software
+Foundation's software and to any other program whose authors commit to
+using it. (Some other Free Software Foundation software is covered by
+the GNU Library General Public License instead.) You can apply it to
+your programs, too.
+
+ When we speak of free software, we are referring to freedom, not
+price. Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
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+ To protect your rights, we need to make restrictions that forbid
+anyone to deny you these rights or to ask you to surrender the rights.
+These restrictions translate to certain responsibilities for you if you
+distribute copies of the software, or if you modify it.
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+ Finally, any free program is threatened constantly by software
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+ TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
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+You may charge a fee for the physical act of transferring a copy, and
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+ 10. If you wish to incorporate parts of the Program into other free
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+ NO WARRANTY
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+POSSIBILITY OF SUCH DAMAGES.
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+ END OF TERMS AND CONDITIONS
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+ How to Apply These Terms to Your New Programs
+
+ If you develop a new program, and you want it to be of the greatest
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+ To do so, attach the following notices to the program. It is safest
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+ <one line to give the program's name and a brief idea of what it does.>
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+
+ 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
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+ You should have received a copy of the GNU General Public License
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+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+
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+Also add information on how to contact you by electronic and paper mail.
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+ Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+ This is free software, and you are welcome to redistribute it
+ under certain conditions; type `show c' for details.
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+The hypothetical commands `show w' and `show c' should show the appropriate
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+ Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+ `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+ <signature of Ty Coon>, 1 April 1989
+ Ty Coon, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs. If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library. If this is what you want to do, use the GNU Library General
+Public License instead of this License.
diff --git a/contrib/fuse-util/Makefile.am b/contrib/fuse-util/Makefile.am
new file mode 100644
index 0000000..06b6cb6
--- /dev/null
+++ b/contrib/fuse-util/Makefile.am
@@ -0,0 +1,12 @@
+bin_PROGRAMS = fusermount-glusterfs
+
+fusermount_glusterfs_SOURCES = fusermount.c $(CONTRIBDIR)/fuse-lib/mount.c
+noinst_HEADERS = mount_util.h
+
+AM_CFLAGS = -Wall -D_FILE_OFFSET_BITS=64 -DFUSE_UTIL $(GF_CFLAGS)
+
+install-exec-hook:
+ chown root $(DESTDIR)$(bindir)/fusermount-glusterfs
+ chmod u+s $(DESTDIR)$(bindir)/fusermount-glusterfs
+
+CLEANFILES =
diff --git a/contrib/fuse-util/fusermount.c b/contrib/fuse-util/fusermount.c
new file mode 100644
index 0000000..c3ecc86
--- /dev/null
+++ b/contrib/fuse-util/fusermount.c
@@ -0,0 +1,965 @@
+/*
+ FUSE: Filesystem in Userspace
+ Copyright (C) 2001-2007 Miklos Szeredi <miklos@szeredi.hu>
+
+ This program can be distributed under the terms of the GNU GPL.
+ See the file COPYING.
+*/
+/* This program does the mounting and unmounting of FUSE filesystems */
+
+#include <config.h>
+
+#include "mount_util.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#include <unistd.h>
+#include <getopt.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <pwd.h>
+#include <mntent.h>
+#include <sys/wait.h>
+#include <sys/stat.h>
+#include <sys/mount.h>
+#include <sys/fsuid.h>
+#include <sys/socket.h>
+#include <sys/utsname.h>
+
+#define FUSE_COMMFD_ENV "_FUSE_COMMFD"
+
+#define FUSE_DEV_OLD "/proc/fs/fuse/dev"
+#define FUSE_DEV_NEW "/dev/fuse"
+#define FUSE_VERSION_FILE_OLD "/proc/fs/fuse/version"
+#define FUSE_CONF "/etc/fuse.conf"
+
+#ifndef MS_DIRSYNC
+#define MS_DIRSYNC 128
+#endif
+
+static const char *progname;
+
+static int user_allow_other = 0;
+static int mount_max = 1000;
+
+static const char *get_user_name(void)
+{
+ struct passwd *pw = getpwuid(getuid());
+ if (pw != NULL && pw->pw_name != NULL)
+ return pw->pw_name;
+ else {
+ fprintf(stderr, "%s: could not determine username\n", progname);
+ return NULL;
+ }
+}
+
+static uid_t oldfsuid;
+static gid_t oldfsgid;
+
+static void drop_privs(void)
+{
+ if (getuid() != 0) {
+ oldfsuid = setfsuid(getuid());
+ oldfsgid = setfsgid(getgid());
+ }
+}
+
+static void restore_privs(void)
+{
+ if (getuid() != 0) {
+ setfsuid(oldfsuid);
+ setfsgid(oldfsgid);
+ }
+}
+
+#ifndef IGNORE_MTAB
+static int add_mount(const char *source, const char *mnt, const char *type,
+ const char *opts)
+{
+ return fuse_mnt_add_mount(progname, source, mnt, type, opts);
+}
+
+static int unmount_fuse(const char *mnt, int quiet, int lazy)
+{
+ if (getuid() != 0) {
+ struct mntent *entp;
+ FILE *fp;
+ const char *user = NULL;
+ char uidstr[32];
+ unsigned uidlen = 0;
+ int found;
+ const char *mtab = _PATH_MOUNTED;
+
+ user = get_user_name();
+ if (user == NULL)
+ return -1;
+
+ fp = setmntent(mtab, "r");
+ if (fp == NULL) {
+ fprintf(stderr,
+ "%s: failed to open %s: %s\n", progname, mtab,
+ strerror(errno));
+ return -1;
+ }
+
+ uidlen = sprintf(uidstr, "%u", getuid());
+
+ found = 0;
+ while ((entp = getmntent(fp)) != NULL) {
+ if (!found && strcmp(entp->mnt_dir, mnt) == 0 &&
+ (strcmp(entp->mnt_type, "fuse") == 0 ||
+ strcmp(entp->mnt_type, "fuseblk") == 0 ||
+ strncmp(entp->mnt_type, "fuse.", 5) == 0 ||
+ strncmp(entp->mnt_type, "fuseblk.", 8) == 0)) {
+ char *p = strstr(entp->mnt_opts, "user=");
+ if (p &&
+ (p == entp->mnt_opts || *(p-1) == ',') &&
+ strcmp(p + 5, user) == 0) {
+ found = 1;
+ break;
+ }
+ /* /etc/mtab is a link pointing to
+ /proc/mounts: */
+ else if ((p =
+ strstr(entp->mnt_opts, "user_id=")) &&
+ (p == entp->mnt_opts ||
+ *(p-1) == ',') &&
+ strncmp(p + 8, uidstr, uidlen) == 0 &&
+ (*(p+8+uidlen) == ',' ||
+ *(p+8+uidlen) == '\0')) {
+ found = 1;
+ break;
+ }
+ }
+ }
+ endmntent(fp);
+
+ if (!found) {
+ if (!quiet)
+ fprintf(stderr,
+ "%s: entry for %s not found in %s\n",
+ progname, mnt, mtab);
+ return -1;
+ }
+ }
+
+ return fuse_mnt_umount(progname, mnt, lazy);
+}
+
+static int count_fuse_fs(void)
+{
+ struct mntent *entp;
+ int count = 0;
+ const char *mtab = _PATH_MOUNTED;
+ FILE *fp = setmntent(mtab, "r");
+ if (fp == NULL) {
+ fprintf(stderr, "%s: failed to open %s: %s\n", progname, mtab,
+ strerror(errno));
+ return -1;
+ }
+ while ((entp = getmntent(fp)) != NULL) {
+ if (strcmp(entp->mnt_type, "fuse") == 0 ||
+ strncmp(entp->mnt_type, "fuse.", 5) == 0)
+ count ++;
+ }
+ endmntent(fp);
+ return count;
+}
+
+
+#else /* IGNORE_MTAB */
+static int count_fuse_fs()
+{
+ return 0;
+}
+
+static int add_mount(const char *source, const char *mnt, const char *type,
+ const char *opts)
+{
+ (void) source;
+ (void) mnt;
+ (void) type;
+ (void) opts;
+ return 0;
+}
+
+static int unmount_fuse(const char *mnt, int quiet, int lazy)
+{
+ return fuse_mnt_umount(progname, mnt, lazy);
+}
+#endif /* IGNORE_MTAB */
+
+static void strip_line(char *line)
+{
+ char *s = strchr(line, '#');
+ if (s != NULL)
+ s[0] = '\0';
+ for (s = line + strlen(line) - 1;
+ s >= line && isspace((unsigned char) *s); s--);
+ s[1] = '\0';
+ for (s = line; isspace((unsigned char) *s); s++);
+ if (s != line)
+ memmove(line, s, strlen(s)+1);
+}
+
+static void parse_line(char *line, int linenum)
+{
+ int tmp;
+ if (strcmp(line, "user_allow_other") == 0)
+ user_allow_other = 1;
+ else if (sscanf(line, "mount_max = %i", &tmp) == 1)
+ mount_max = tmp;
+ else if(line[0])
+ fprintf(stderr,
+ "%s: unknown parameter in %s at line %i: '%s'\n",
+ progname, FUSE_CONF, linenum, line);
+}
+
+static void read_conf(void)
+{
+ FILE *fp = fopen(FUSE_CONF, "r");
+ if (fp != NULL) {
+ int linenum = 1;
+ char line[256];
+ int isnewline = 1;
+ while (fgets(line, sizeof(line), fp) != NULL) {
+ if (isnewline) {
+ if (line[strlen(line)-1] == '\n') {
+ strip_line(line);
+ parse_line(line, linenum);
+ } else {
+ isnewline = 0;
+ }
+ } else if(line[strlen(line)-1] == '\n') {
+ fprintf(stderr, "%s: reading %s: line %i too long\n", progname, FUSE_CONF, linenum);
+
+ isnewline = 1;
+ }
+ if (isnewline)
+ linenum ++;
+ }
+ if (!isnewline) {
+ fprintf(stderr, "%s: reading %s: missing newline at end of file\n", progname, FUSE_CONF);
+
+ }
+ fclose(fp);
+ } else if (errno != ENOENT) {
+ fprintf(stderr, "%s: failed to open %s: %s\n",
+ progname, FUSE_CONF, strerror(errno));
+ }
+}
+
+static int begins_with(const char *s, const char *beg)
+{
+ if (strncmp(s, beg, strlen(beg)) == 0)
+ return 1;
+ else
+ return 0;
+}
+
+struct mount_flags {
+ const char *opt;
+ unsigned long flag;
+ int on;
+ int safe;
+};
+
+static struct mount_flags mount_flags[] = {
+ {"rw", MS_RDONLY, 0, 1},
+ {"ro", MS_RDONLY, 1, 1},
+ {"suid", MS_NOSUID, 0, 0},
+ {"nosuid", MS_NOSUID, 1, 1},
+ {"dev", MS_NODEV, 0, 0},
+ {"nodev", MS_NODEV, 1, 1},
+ {"exec", MS_NOEXEC, 0, 1},
+ {"noexec", MS_NOEXEC, 1, 1},
+ {"async", MS_SYNCHRONOUS, 0, 1},
+ {"sync", MS_SYNCHRONOUS, 1, 1},
+ {"atime", MS_NOATIME, 0, 1},
+ {"noatime", MS_NOATIME, 1, 1},
+ {"dirsync", MS_DIRSYNC, 1, 1},
+ {NULL, 0, 0, 0}
+};
+
+static int find_mount_flag(const char *s, unsigned len, int *on, int *flag)
+{
+ int i;
+
+ for (i = 0; mount_flags[i].opt != NULL; i++) {
+ const char *opt = mount_flags[i].opt;
+ if (strlen(opt) == len && strncmp(opt, s, len) == 0) {
+ *on = mount_flags[i].on;
+ *flag = mount_flags[i].flag;
+ if (!mount_flags[i].safe && getuid() != 0) {
+ *flag = 0;
+ fprintf(stderr,
+ "%s: unsafe option %s ignored\n",
+ progname, opt);
+ }
+ return 1;
+ }
+ }
+ return 0;
+}
+
+static int add_option(char **optsp, const char *opt, unsigned expand)
+{
+ char *newopts;
+ if (*optsp == NULL)
+ newopts = strdup(opt);
+ else {
+ unsigned oldsize = strlen(*optsp);
+ unsigned newsize = oldsize + 1 + strlen(opt) + expand + 1;
+ newopts = (char *) realloc(*optsp, newsize);
+ if (newopts)
+ sprintf(newopts + oldsize, ",%s", opt);
+ }
+ if (newopts == NULL) {
+ fprintf(stderr, "%s: failed to allocate memory\n", progname);
+ return -1;
+ }
+ *optsp = newopts;
+ return 0;
+}
+
+static int get_mnt_opts(int flags, char *opts, char **mnt_optsp)
+{
+ int i;
+ int l;
+
+ if (!(flags & MS_RDONLY) && add_option(mnt_optsp, "rw", 0) == -1)
+ return -1;
+
+ for (i = 0; mount_flags[i].opt != NULL; i++) {
+ if (mount_flags[i].on && (flags & mount_flags[i].flag) &&
+ add_option(mnt_optsp, mount_flags[i].opt, 0) == -1)
+ return -1;
+ }
+
+ if (add_option(mnt_optsp, opts, 0) == -1)
+ return -1;
+ /* remove comma from end of opts*/
+ l = strlen(*mnt_optsp);
+ if ((*mnt_optsp)[l-1] == ',')
+ (*mnt_optsp)[l-1] = '\0';
+ if (getuid() != 0) {
+ const char *user = get_user_name();
+ if (user == NULL)
+ return -1;
+
+ if (add_option(mnt_optsp, "user=", strlen(user)) == -1)
+ return -1;
+ strcat(*mnt_optsp, user);
+ }
+ return 0;
+}
+
+static int opt_eq(const char *s, unsigned len, const char *opt)
+{
+ if(strlen(opt) == len && strncmp(s, opt, len) == 0)
+ return 1;
+ else
+ return 0;
+}
+
+static int get_string_opt(const char *s, unsigned len, const char *opt,
+ char **val)
+{
+ unsigned opt_len = strlen(opt);
+
+ if (*val)
+ free(*val);
+ *val = (char *) malloc(len - opt_len + 1);
+ if (!*val) {
+ fprintf(stderr, "%s: failed to allocate memory\n", progname);
+ return 0;
+ }
+
+ memcpy(*val, s + opt_len, len - opt_len);
+ (*val)[len - opt_len] = '\0';
+ return 1;
+}
+
+static int do_mount(const char *mnt, char **typep, mode_t rootmode,
+ int fd, const char *opts, const char *dev, char **sourcep,
+ char **mnt_optsp, off_t rootsize)
+{
+ int res;
+ int flags = MS_NOSUID | MS_NODEV;
+ char *optbuf;
+ char *mnt_opts = NULL;
+ const char *s;
+ char *d;
+ char *fsname = NULL;
+ char *subtype = NULL;
+ char *source = NULL;
+ char *type = NULL;
+ int check_empty = 1;
+ int blkdev = 0;
+
+ optbuf = (char *) malloc(strlen(opts) + 128);
+ if (!optbuf) {
+ fprintf(stderr, "%s: failed to allocate memory\n", progname);
+ return -1;
+ }
+
+ for (s = opts, d = optbuf; *s;) {
+ unsigned len;
+ const char *fsname_str = "fsname=";
+ const char *subtype_str = "subtype=";
+ for (len = 0; s[len] && s[len] != ','; len++);
+ if (begins_with(s, fsname_str)) {
+ if (!get_string_opt(s, len, fsname_str, &fsname))
+ goto err;
+ } else if (begins_with(s, subtype_str)) {
+ if (!get_string_opt(s, len, subtype_str, &subtype))
+ goto err;
+ } else if (opt_eq(s, len, "blkdev")) {
+ if (getuid() != 0) {
+ fprintf(stderr,
+ "%s: option blkdev is privileged\n",
+ progname);
+ goto err;
+ }
+ blkdev = 1;
+ } else if (opt_eq(s, len, "nonempty")) {
+ check_empty = 0;
+ } else if (!begins_with(s, "fd=") &&
+ !begins_with(s, "rootmode=") &&
+ !begins_with(s, "user_id=") &&
+ !begins_with(s, "group_id=")) {
+ int on;
+ int flag;
+ int skip_option = 0;
+ if (opt_eq(s, len, "large_read")) {
+ struct utsname utsname;
+ unsigned kmaj, kmin;
+ res = uname(&utsname);
+ if (res == 0 &&
+ sscanf(utsname.release, "%u.%u",
+ &kmaj, &kmin) == 2 &&
+ (kmaj > 2 || (kmaj == 2 && kmin > 4))) {
+ fprintf(stderr, "%s: note: 'large_read' mount option is deprecated for %i.%i kernels\n", progname, kmaj, kmin);
+ skip_option = 1;
+ }
+ }
+ if (getuid() != 0 && !user_allow_other &&
+ (opt_eq(s, len, "allow_other") ||
+ opt_eq(s, len, "allow_root"))) {
+ fprintf(stderr, "%s: option %.*s only allowed if 'user_allow_other' is set in /etc/fuse.conf\n", progname, len, s);
+ goto err;
+ }
+ if (!skip_option) {
+ if (find_mount_flag(s, len, &on, &flag)) {
+ if (on)
+ flags |= flag;
+ else
+ flags &= ~flag;
+ } else {
+ memcpy(d, s, len);
+ d += len;
+ *d++ = ',';
+ }
+ }
+ }
+ s += len;
+ if (*s)
+ s++;
+ }
+ *d = '\0';
+ res = get_mnt_opts(flags, optbuf, &mnt_opts);
+ if (res == -1)
+ goto err;
+
+ sprintf(d, "fd=%i,rootmode=%o,user_id=%i,group_id=%i",
+ fd, rootmode, getuid(), getgid());
+
+ if (check_empty &&
+ fuse_mnt_check_empty(progname, mnt, rootmode, rootsize) == -1)
+ goto err;
+
+ source = malloc((fsname ? strlen(fsname) : 0) +
+ (subtype ? strlen(subtype) : 0) + strlen(dev) + 32);
+
+ type = malloc((subtype ? strlen(subtype) : 0) + 32);
+ if (!type || !source) {
+ fprintf(stderr, "%s: failed to allocate memory\n", progname);
+ goto err;
+ }
+
+ if (subtype)
+ sprintf(type, "%s.%s", blkdev ? "fuseblk" : "fuse", subtype);
+ else
+ strcpy(type, blkdev ? "fuseblk" : "fuse");
+
+ if (fsname)
+ strcpy(source, fsname);
+ else
+ strcpy(source, subtype ? subtype : dev);
+
+ res = mount(source, mnt, type, flags, optbuf);
+ if (res == -1 && errno == ENODEV && subtype) {
+ /* Probably missing subtype support */
+ strcpy(type, blkdev ? "fuseblk" : "fuse");
+ if (fsname) {
+ if (!blkdev)
+ sprintf(source, "%s#%s", subtype, fsname);
+ } else {
+ strcpy(source, type);
+ }
+
+ res = mount(source, mnt, type, flags, optbuf);
+ }
+ if (res == -1 && errno == EINVAL) {
+ /* It could be an old version not supporting group_id */
+ sprintf(d, "fd=%i,rootmode=%o,user_id=%i",
+ fd, rootmode, getuid());
+ res = mount(source, mnt, type, flags, optbuf);
+ }
+ if (res == -1) {
+ int errno_save = errno;
+ if (blkdev && errno == ENODEV && !fuse_mnt_check_fuseblk())
+ fprintf(stderr, "%s: 'fuseblk' support missing\n",
+ progname);
+ else
+ fprintf(stderr, "%s: mount failed: %s\n", progname,
+ strerror(errno_save));
+ goto err;
+ } else {
+ *sourcep = source;
+ *typep = type;
+ *mnt_optsp = mnt_opts;
+ }
+ free(fsname);
+ free(optbuf);
+
+ return res;
+
+err:
+ free(fsname);
+ free(subtype);
+ free(source);
+ free(type);
+ free(mnt_opts);
+ free(optbuf);
+ return -1;
+}
+
+static int check_version(const char *dev)
+{
+ int res;
+ int majorver;
+ int minorver;
+ const char *version_file;
+ FILE *vf;
+
+ if (strcmp(dev, FUSE_DEV_OLD) != 0)
+ return 0;
+
+ version_file = FUSE_VERSION_FILE_OLD;
+ vf = fopen(version_file, "r");
+ if (vf == NULL) {
+ fprintf(stderr, "%s: kernel interface too old\n", progname);
+ return -1;
+ }
+ res = fscanf(vf, "%i.%i", &majorver, &minorver);
+ fclose(vf);
+ if (res != 2) {
+ fprintf(stderr, "%s: error reading %s\n", progname,
+ version_file);
+ return -1;
+ }
+ if (majorver < 3) {
+ fprintf(stderr, "%s: kernel interface too old\n", progname);
+ return -1;
+ }
+ return 0;
+}
+
+static int check_perm(const char **mntp, struct stat *stbuf, int *currdir_fd,
+ int *mountpoint_fd)
+{
+ int res;
+ const char *mnt = *mntp;
+ const char *origmnt = mnt;
+
+ res = lstat(mnt, stbuf);
+ if (res == -1) {
+ fprintf(stderr, "%s: failed to access mountpoint %s: %s\n",
+ progname, mnt, strerror(errno));
+ return -1;
+ }
+
+ /* No permission checking is done for root */
+ if (getuid() == 0)
+ return 0;
+
+ if (S_ISDIR(stbuf->st_mode)) {
+ *currdir_fd = open(".", O_RDONLY);
+ if (*currdir_fd == -1) {
+ fprintf(stderr,
+ "%s: failed to open current directory: %s\n",
+ progname, strerror(errno));
+ return -1;
+ }
+ res = chdir(mnt);
+ if (res == -1) {
+ fprintf(stderr,
+ "%s: failed to chdir to mountpoint: %s\n",
+ progname, strerror(errno));
+ return -1;
+ }
+ mnt = *mntp = ".";
+ res = lstat(mnt, stbuf);
+ if (res == -1) {
+ fprintf(stderr,
+ "%s: failed to access mountpoint %s: %s\n",
+ progname, origmnt, strerror(errno));
+ return -1;
+ }
+
+ if ((stbuf->st_mode & S_ISVTX) && stbuf->st_uid != getuid()) {
+ fprintf(stderr, "%s: mountpoint %s not owned by user\n",
+ progname, origmnt);
+ return -1;
+ }
+
+ res = access(mnt, W_OK);
+ if (res == -1) {
+ fprintf(stderr, "%s: user has no write access to mountpoint %s\n",
+ progname, origmnt);
+ return -1;
+ }
+ } else if (S_ISREG(stbuf->st_mode)) {
+ static char procfile[256];
+ *mountpoint_fd = open(mnt, O_WRONLY);
+ if (*mountpoint_fd == -1) {
+ fprintf(stderr, "%s: failed to open %s: %s\n",
+ progname, mnt, strerror(errno));
+ return -1;
+ }
+ res = fstat(*mountpoint_fd, stbuf);
+ if (res == -1) {
+ fprintf(stderr,
+ "%s: failed to access mountpoint %s: %s\n",
+ progname, mnt, strerror(errno));
+ return -1;
+ }
+ if (!S_ISREG(stbuf->st_mode)) {
+ fprintf(stderr,
+ "%s: mountpoint %s is no longer a regular file\n",
+ progname, mnt);
+ return -1;
+ }
+
+ sprintf(procfile, "/proc/self/fd/%i", *mountpoint_fd);
+ *mntp = procfile;
+ } else {
+ fprintf(stderr,
+ "%s: mountpoint %s is not a directory or a regular file\n",
+ progname, mnt);
+ return -1;
+ }
+
+
+ return 0;
+}
+
+static int try_open(const char *dev, char **devp, int silent)
+{
+ int fd = open(dev, O_RDWR);
+ if (fd != -1) {
+ *devp = strdup(dev);
+ if (*devp == NULL) {
+ fprintf(stderr, "%s: failed to allocate memory\n",
+ progname);
+ close(fd);
+ fd = -1;
+ }
+ } else if (errno == ENODEV ||
+ errno == ENOENT)/* check for ENOENT too, for the udev case */
+ return -2;
+ else if (!silent) {
+ fprintf(stderr, "%s: failed to open %s: %s\n", progname, dev,
+ strerror(errno));
+ }
+ return fd;
+}
+
+static int try_open_fuse_device(char **devp)
+{
+ int fd;
+ int err;
+
+ drop_privs();
+ fd = try_open(FUSE_DEV_NEW, devp, 0);
+ restore_privs();
+ if (fd >= 0)
+ return fd;
+
+ err = fd;
+ fd = try_open(FUSE_DEV_OLD, devp, 1);
+ if (fd >= 0)
+ return fd;
+
+ return err;
+}
+
+static int open_fuse_device(char **devp)
+{
+ int fd = try_open_fuse_device(devp);
+ if (fd >= -1)
+ return fd;
+
+ fprintf(stderr,
+ "%s: fuse device not found, try 'modprobe fuse' first\n",
+ progname);
+
+ return -1;
+}
+
+
+static int mount_fuse(const char *mnt, const char *opts)
+{
+ int res;
+ int fd;
+ char *dev;
+ struct stat stbuf;
+ char *type = NULL;
+ char *source = NULL;
+ char *mnt_opts = NULL;
+ const char *real_mnt = mnt;
+ int currdir_fd = -1;
+ int mountpoint_fd = -1;
+
+ fd = open_fuse_device(&dev);
+ if (fd == -1)
+ return -1;
+
+ drop_privs();
+ read_conf();
+
+ if (getuid() != 0 && mount_max != -1) {
+ int mount_count = count_fuse_fs();
+ if (mount_count >= mount_max) {
+ fprintf(stderr, "%s: too many FUSE filesystems mounted; mount_max=N can be set in /etc/fuse.conf\n", progname);
+ close(fd);
+ return -1;
+ }
+ }
+
+ res = check_version(dev);
+ if (res != -1) {
+ res = check_perm(&real_mnt, &stbuf, &currdir_fd,
+ &mountpoint_fd);
+ restore_privs();
+ if (res != -1)
+ res = do_mount(real_mnt, &type, stbuf.st_mode & S_IFMT,
+ fd, opts, dev, &source, &mnt_opts,
+ stbuf.st_size);
+ } else
+ restore_privs();
+
+ if (currdir_fd != -1) {
+ fchdir(currdir_fd);
+ close(currdir_fd);
+ }
+ if (mountpoint_fd != -1)
+ close(mountpoint_fd);
+
+ if (res == -1) {
+ close(fd);
+ return -1;
+ }
+
+ if (geteuid() == 0) {
+ res = add_mount(source, mnt, type, mnt_opts);
+ if (res == -1) {
+ umount2(mnt, 2); /* lazy umount */
+ close(fd);
+ return -1;
+ }
+ }
+
+ free(source);
+ free(type);
+ free(mnt_opts);
+ free(dev);
+
+ return fd;
+}
+
+static int send_fd(int sock_fd, int fd)
+{
+ int retval;
+ struct msghdr msg;
+ struct cmsghdr *p_cmsg;
+ struct iovec vec;
+ size_t cmsgbuf[CMSG_SPACE(sizeof(fd)) / sizeof(size_t)];
+ int *p_fds;
+ char sendchar = 0;
+
+ msg.msg_control = cmsgbuf;
+ msg.msg_controllen = sizeof(cmsgbuf);
+ p_cmsg = CMSG_FIRSTHDR(&msg);
+ p_cmsg->cmsg_level = SOL_SOCKET;
+ p_cmsg->cmsg_type = SCM_RIGHTS;
+ p_cmsg->cmsg_len = CMSG_LEN(sizeof(fd));
+ p_fds = (int *) CMSG_DATA(p_cmsg);
+ *p_fds = fd;
+ msg.msg_controllen = p_cmsg->cmsg_len;
+ msg.msg_name = NULL;
+ msg.msg_namelen = 0;
+ msg.msg_iov = &vec;
+ msg.msg_iovlen = 1;
+ msg.msg_flags = 0;
+ /* "To pass file descriptors or credentials you need to send/read at
+ * least one byte" (man 7 unix) */
+ vec.iov_base = &sendchar;
+ vec.iov_len = sizeof(sendchar);
+ while ((retval = sendmsg(sock_fd, &msg, 0)) == -1 && errno == EINTR);
+ if (retval != 1) {
+ perror("sending file descriptor");
+ return -1;
+ }
+ return 0;
+}
+
+static void usage(void)
+{
+ fprintf(stderr,
+ "%s: [options] mountpoint\n"
+ "Options:\n"
+ " -h print help\n"
+ " -V print version\n"
+ " -o opt[,opt...] mount options\n"
+ " -u unmount\n"
+ " -q quiet\n"
+ " -z lazy unmount\n",
+ progname);
+ exit(1);
+}
+
+static void show_version(void)
+{
+ printf("fusermount version: %s\n", PACKAGE_VERSION);
+ exit(0);
+}
+
+int main(int argc, char *argv[])
+{
+ int ch;
+ int fd;
+ int res;
+ char *origmnt;
+ char *mnt;
+ static int unmount = 0;
+ static int lazy = 0;
+ static int quiet = 0;
+ char *commfd;
+ int cfd;
+ const char *opts = "";
+
+ static const struct option long_opts[] = {
+ {"unmount", no_argument, NULL, 'u'},
+ {"lazy", no_argument, NULL, 'z'},
+ {"quiet", no_argument, NULL, 'q'},
+ {"help", no_argument, NULL, 'h'},
+ {"version", no_argument, NULL, 'V'},
+ {0, 0, 0, 0}};
+
+ progname = strdup(argv[0]);
+ if (progname == NULL) {
+ fprintf(stderr, "%s: failed to allocate memory\n", argv[0]);
+ exit(1);
+ }
+
+ while ((ch = getopt_long(argc, argv, "hVo:uzq", long_opts,
+ NULL)) != -1) {
+ switch (ch) {
+ case 'h':
+ usage();
+ break;
+
+ case 'V':
+ show_version();
+ break;
+
+ case 'o':
+ opts = optarg;
+ break;
+
+ case 'u':
+ unmount = 1;
+ break;
+
+ case 'z':
+ lazy = 1;
+ break;
+
+ case 'q':
+ quiet = 1;
+ break;
+
+ default:
+ exit(1);
+ }
+ }
+
+ if (lazy && !unmount) {
+ fprintf(stderr, "%s: -z can only be used with -u\n", progname);
+ exit(1);
+ }
+
+ if (optind >= argc) {
+ fprintf(stderr, "%s: missing mountpoint argument\n", progname);
+ exit(1);
+ } else if (argc > optind + 1) {
+ fprintf(stderr, "%s: extra arguments after the mountpoint\n",
+ progname);
+ exit(1);
+ }
+
+ origmnt = argv[optind];
+
+ drop_privs();
+ mnt = fuse_mnt_resolve_path(progname, origmnt);
+ restore_privs();
+ if (mnt == NULL)
+ exit(1);
+
+ umask(033);
+ if (unmount) {
+ if (geteuid() == 0)
+ res = unmount_fuse(mnt, quiet, lazy);
+ else {
+ res = umount2(mnt, lazy ? 2 : 0);
+ if (res == -1 && !quiet)
+ fprintf(stderr,
+ "%s: failed to unmount %s: %s\n",
+ progname, mnt, strerror(errno));
+ }
+ if (res == -1)
+ exit(1);
+ return 0;
+ }
+
+ commfd = getenv(FUSE_COMMFD_ENV);
+ if (commfd == NULL) {
+ fprintf(stderr, "%s: old style mounting not supported\n",
+ progname);
+ exit(1);
+ }
+
+ fd = mount_fuse(mnt, opts);
+ if (fd == -1)
+ exit(1);
+
+ cfd = atoi(commfd);
+ res = send_fd(cfd, fd);
+ if (res == -1)
+ exit(1);
+
+ return 0;
+}
diff --git a/contrib/fuse-util/mount_util.h b/contrib/fuse-util/mount_util.h
new file mode 100644
index 0000000..cf54d9d
--- /dev/null
+++ b/contrib/fuse-util/mount_util.h
@@ -0,0 +1,17 @@
+/*
+ FUSE: Filesystem in Userspace
+ Copyright (C) 2001-2007 Miklos Szeredi <miklos@szeredi.hu>
+
+ This program can be distributed under the terms of the GNU LGPLv2.
+ See the file COPYING.LIB.
+*/
+
+#include <sys/types.h>
+
+int fuse_mnt_add_mount(const char *progname, const char *fsname,
+ const char *mnt, const char *type, const char *opts);
+int fuse_mnt_umount(const char *progname, const char *mnt, int lazy);
+char *fuse_mnt_resolve_path(const char *progname, const char *orig);
+int fuse_mnt_check_empty(const char *progname, const char *mnt,
+ mode_t rootmode, off_t rootsize);
+int fuse_mnt_check_fuseblk(void);
diff --git a/xlators/mount/fuse/src/Makefile.am b/xlators/mount/fuse/src/Makefile.am
index 0231e7b..a4d1fd7 100644
--- a/xlators/mount/fuse/src/Makefile.am
+++ b/xlators/mount/fuse/src/Makefile.am
@@ -1,6 +1,3 @@
-
-CONTRIBDIR = $(top_srcdir)/contrib
-
noinst_HEADERS = $(CONTRIBDIR)/fuse-include/fuse_kernel.h
xlator_LTLIBRARIES = fuse.la
@@ -11,7 +8,7 @@ fuse_la_LDFLAGS = -module -avoidversion -shared -nostartfiles
AM_CFLAGS = -fPIC -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE -D$(GF_HOST_OS) -Wall \
-I$(top_srcdir)/libglusterfs/src -I$(CONTRIBDIR)/fuse-include \
- $(GF_CFLAGS) -DFUSE_USE_VERSION=26
+ $(GF_CFLAGS) -DFUSERMOUNT_DIR=\"$(bindir)\"
CLEANFILES =