Repository: sahlberg/fuse-nfs
Branch: master
Commit: 75827244f161
Files: 12
Total size: 86.3 KB
Directory structure:
gitextract_8wpv2jrr/
├── COPYING
├── Dockerfile
├── Makefile.am
├── README
├── configure.ac
├── doc/
│ ├── Makefile.am
│ ├── fuse-nfs.1
│ └── fuse-nfs.xml
├── fuse/
│ ├── Makefile.am
│ └── fuse-nfs.c
├── fuse-nfs.pc.in
└── setup.sh
================================================
FILE CONTENTS
================================================
================================================
FILE: COPYING
================================================
GNU GENERAL PUBLIC LICENSE
Version 3, 29 June 2007
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.
================================================
FILE: Dockerfile
================================================
# Build environment
FROM ubuntu:jammy as BUILD
RUN apt update && \
apt install --yes libfuse-dev libnfs13 libnfs-dev libtool m4 automake libnfs-dev xsltproc make libtool
COPY ./ /src
WORKDIR /src
RUN ./setup.sh && \
./configure && \
make
# Production image
FROM ubuntu:jammy
RUN apt update && \
apt install --yes libnfs13 libfuse2 fuse && \
apt clean autoclean && \
apt autoremove --yes && \
rm -rf /var/lib/{apt,dpkg,cache,log}/
COPY --from=BUILD /src/fuse/fuse-nfs /bin/fuse-nfs
================================================
FILE: Makefile.am
================================================
SUBDIRS = doc fuse
ACLOCAL_AMFLAGS = -I m4
pkgconfigdir = $(libdir)/pkgconfig
pkgconfig_DATA = fuse-nfs.pc
EXTRA_DIST = \
README \
COPYING \
LICENCE-GPL-3.txt \
fuse \
fuse-nfs.pc.in
================================================
FILE: README
================================================
fuse-nfs
========
This is a fuse module that implements the NFS protocol.
Building
========
$ sudo apt-get install libfuse-dev libnfs13 libnfs-dev libtool m4 automake libnfs-dev xsltproc
$ ./setup.sh
$ ./configure
$ make
$ sudo make install
FUSE OPTIONS
============
[-?|--help]
fuse-nfs options :
[-U NFS_UID|--fusenfs_uid=NFS_UID]
The uid passed within the rpc credentials within the mount point
This is the same as passing the uid within the url, however if both are defined then the url's one is used
[-G NFS_GID|--fusenfs_gid=NFS_GID]
The gid passed within the rpc credentials within the mount point
This is the same as passing the gid within the url, however if both are defined then the url's one is used
[-o|--fusenfs_allow_other_own_ids]
Allow fuse-nfs with allow_user activated to update the rpc credentials with the current (other) user credentials instead
of using the mount user credentials or (if defined) the custom credentials defined with -U/-G / url
This option activate allow_other, note that allow_other need user_allow_other to be defined in fuse.conf
libnfs options :
[-n SHARE|--nfs_share=SHARE]
The server export to be mounted
[-m MNTPOINT|--mountpoint=MNTPOINT]
The client mount point
fuse options (see man mount.fuse):
[-p [0|1]|--default_permissions=[0|1]
The fuse default_permissions option do not have any argument,
for compatibility with previous fuse-nfs version default is activated (1)
with the possibility to overwrite this behavior (0)
[-t [0|1]|--multithread=[0|1]]
Single threaded by default (0) , may have issue with nfs and fuse multithread (1)
[-a|--allow_other]
This option overrides the security measure restricting file access to the filesystem owner,
so that all users (including root) can access the files.
[-r|--allow_root]
This option is similar to allow_other but file access is limited to the filesystem owner and root.
This option and allow_other are mutually exclusive.
[-u FUSE_UID|--uid=FUSE_UID]
Specifies the numeric uid of the mount owner.
Override the st_uid field set by the filesystem.
[-g FUSE_GID|--gid=FUSE_GID]
Specifies the numeric gid of the mount owner.
Override the st_uid field set by the filesystem.
[-K UMASK|--umask=UMASK]
Override the permission bits in st_mode set by the filesystem.
The resulting permission bits are the ones missing from the given umask value.
The value is given in octal representation.
[-d|--direct_io]
This option disables the use of page cache (file content cache) in the kernel for this filesystem.
This has several affects:
1. Each read or write system call will initiate one or more read or write operations, data will not be cached in the kernel.
2. The return value of the read and write system calls will correspond to the return values of the read and write operations.
This is useful for example if the file size is not known in advance (before reading it).
[-k|--kernel_cache]
This option disables flushing the cache of the file contents on every open.
This should only be enabled on filesystems, where the file data is never changed externally (not through the mounted FUSE filesystem).
Thus it is not suitable for network filesystems and other "intermediate" filesystems.
[-c|--auto_cache]
This option is an alternative to kernel_cache.
Instead of unconditionally keeping cached data, the cached data is invalidated on open if the modification time or the size of the file has changed since it was last opened.
[-E TIMEOUT|--entry_timeout=TIMEOUT]
The timeout in seconds for which name lookups will be cached.
The default is 1.0 second. For all the timeout options, it is possible to give fractions of a second as well (e.g. entry_timeout=2.8)
[-N TIMEOUT|--negative_timeout=TIMEOUT]
The timeout in seconds for which a negative lookup will be cached.
This means, that if file did not exist (lookup retuned ENOENT), the lookup will only be redone after the timeout, and the file/directory will be assumed to not exist until then.
The default is 0.0 second, meaning that caching negative lookups are disabled.
[-T TIMEOUT|--attr_timeout=TIMEOUT]
The timeout in seconds for which file/directory attributes are cached.
The default is 1.0 second.
[-C TIMEOUT|--ac_attr_timeout=TIMEOUT]
The timeout in seconds for which file attributes are cached for the purpose of checking if auto_cache should flush the file data on open.
The default is the value of attr_timeout
[-l|--large_read]
This can improve performance for some filesystems, but can also degrade performance.
This option is only useful on 2.4.X kernels, as on 2.6 kernels requests size is automatically determined for optimum performance.
ROOT vs NON-ROOT
================
By default, most NFS servers will only allow access from clients that are
using a system port (i.e. a port < 1024).
Since these ports by default can only be used by the root user this will
prevent non-root users from conencting to the NFS server or mounting the
filesystem.
There are two ways to solve this:
1, cap_net_bind_service
-----------------------
On Linux, when this capability is set the kernel will allow that program
to use system ports for any user that runs that program.
sudo setcap 'cap_net_bind_service=+ep' ./fuse/fuse-nfs
Setting this capability will allow normal non-root users to access the NFS
server.
2, insecure
-----------
Alternatively you can often disable the "chack that the client connects from
a system port" in the NFS server itself.
On Linux NFS servers this is done by adding the "insecure" keyword to
the /etc/exports file.
LIBNFS URL-FORMAT:
===========
Libnfs uses RFC2224 style URLs extended with libnfs specific url arguments some minor extensions.
The basic syntax of these URLs is :
nfs:///path[?arg=val[&arg=val]*]
Arguments supported by libnfs are :
tcp-syncnt= : Number of SYNs to send during the session establish
before failing setting up the tcp connection to the
server.
uid= : UID value to use when talking to the server.
default it 65534 on Windows and getuid() on unixen.
gid= : GID value to use when talking to the server.
default it 65534 on Windows and getgid() on unixen.
readahead= : Enable readahead for files and set the maximum amount
of readahead to .
auto-traverse-mounts=<0|1>
: Should libnfs try to traverse across nested mounts
automatically or not. Default is 1 == enabled.
dircache=<0|1> : Disable/enable directory caching. Enabled by default.
if= : Interface name (e.g., eth1) to bind; requires `root`
version=<3|4> : NFS version to use. Version 3 is the default.
To mount a filesystem:
======================
fuse-nfs -n nfs://127.0.0.1/data/tmp -m /my/mountpoint
To unmount a filesystem:
========================
fusermount -u /my/mountpoint
NFSv4 support:
==============
NFSv4 is supported when used with a recent enough version of libnfs.
To enable NFSv4 support you need to specify version=4 as an URL argument:
fuse-nfs -n nfs://127.0.0.1/data/tmp?version=4 -m /my/mountpoint
Windows
=======
The following are ports to windows:
* Daniel Abrech (https://github.com/Daniel-Abrecht) has ported this fuse module
to windows using the dokany filesystem/fuse wrapper.
Windows builds for this module can be downloaded from :
https://github.com/Daniel-Abrecht/fuse-nfs-crossbuild-scripts/releases
* Bill Zissimopoulos (https://github.com/billziss-gh) has ported this fuse
module to windows using WinFsp.
The NFS-Win port (including MSI installers) can be found here:
https://github.com/billziss-gh/nfs-win
================================================
FILE: configure.ac
================================================
AC_PREREQ(2.50)
AC_INIT([fuse-nfs], [1.0.0], [ronniesahlberg@gmail.com])
AM_INIT_AUTOMAKE([-Wall foreign])
AC_CANONICAL_HOST
AC_CONFIG_MACRO_DIR([m4])
m4_pattern_allow([AM_PROG_AR])
AM_PROG_AR
# Work around stupid autoconf default cflags. pt 1
SAVE_CFLAGS="x${CFLAGS}"
AC_PROG_CC
AC_PROG_LIBTOOL
AM_PROG_CC_C_O
PKG_PROG_PKG_CONFIG
# Work around stupid autoconf default cflags. pt 2
if test "$SAVE_CFLAGS" = "x"; then
CFLAGS=""
fi
# We always want 64 bit file offsets
CFLAGS="${CFLAGS} -D_FILE_OFFSET_BITS=64"
if test "$ac_cv_prog_gcc" = yes; then
WARN_CFLAGS="-Wall -Werror -Wshadow -Wno-write-strings -Wstrict-prototypes -Wpointer-arith -Wcast-align -Wno-strict-aliasing"
fi
AC_SUBST(WARN_CFLAGS)
AC_CONFIG_HEADER(config.h)
AC_HEADER_ASSERT
AC_CHECK_HEADER([fuse.h], [], [AC_MSG_ERROR([fuse.h is missing. You need to install libfuse-dev])], [])
AC_CHECK_HEADER([nfsc/libnfs.h], [], [AC_MSG_ERROR([libnfs.h is missing. You need to install libnfs-dev])], [])
AC_CHECK_HEADERS([fuse.h])
AC_CACHE_CHECK([for st_atim support],libiscsi_cv_HAVE_ST_ATIM,[
AC_TRY_COMPILE([
#include
#include
#include ],
[struct stat st; st.st_atim.tv_sec = 0;],
libiscsi_cv_HAVE_ST_ATIM=yes,libiscsi_cv_HAVE_ST_ATIM=no)])
if test x"$libiscsi_cv_HAVE_ST_ATIM" = x"yes"; then
AC_DEFINE(HAVE_ST_ATIM,1,[Whether we have st_atim support])
fi
AC_SEARCH_LIBS([fuse_get_context], [fuse dokanfuse1.dll dokanfuse2.dll], [], [
AC_MSG_ERROR([fuse library unavailable])
])
AC_CHECK_FUNC(gethostbyname,[SOCKETS_AVAILABLE=1])
AS_IF([test "$SOCKETS_AVAILABLE" = ""],[
OLD_LIBS=$LIBS
LIBS+=" -lws2"
AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include ]], [[gethostbyname ("");]])], [SOCKETS_AVAILABLE=1], [LIBS=$OLD_LIBS])
])
AS_IF([test "$SOCKETS_AVAILABLE" = ""],[
OLD_LIBS=$LIBS
LIBS+=" -lws2_32"
AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include ]], [[gethostbyname ("");]])], [SOCKETS_AVAILABLE=1], [LIBS=$OLD_LIBS])
])
#output
AC_CONFIG_FILES([Makefile]
[doc/Makefile]
[fuse/Makefile]
)
AC_OUTPUT([fuse-nfs.pc])
================================================
FILE: doc/Makefile.am
================================================
XSLTPROC = /usr/bin/xsltproc
EXTRA_DIST = fuse-nfs.1 fuse-nfs.xml
# Manpages
man1_MANS = fuse-nfs.1
fuse-nfs.1:fuse-nfs.xml
-test -z "$(XSLTPROC)" || $(XSLTPROC) -o fuse-nfs.1 http://docbook.sourceforge.net/release/xsl/current/manpages/docbook.xsl fuse-nfs.xml
================================================
FILE: doc/fuse-nfs.1
================================================
'\" t
.\" Title: fuse-nfs
.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author]
.\" Generator: DocBook XSL Stylesheets v1.79.1
.\" Date: 10/20/2021
.\" Manual: fuse-nfs
.\" Source: fuse-nfs
.\" Language: English
.\"
.TH "FUSE\-NFS" "1" "10/20/2021" "fuse\-nfs" "fuse\-nfs"
.\" -----------------------------------------------------------------
.\" * Define some portability stuff
.\" -----------------------------------------------------------------
.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.\" http://bugs.debian.org/507673
.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.ie \n(.g .ds Aq \(aq
.el .ds Aq '
.\" -----------------------------------------------------------------
.\" * set default formatting
.\" -----------------------------------------------------------------
.\" disable hyphenation
.nh
.\" disable justification (adjust text to left margin only)
.ad l
.\" -----------------------------------------------------------------
.\" * MAIN CONTENT STARTS HERE *
.\" -----------------------------------------------------------------
.SH "NAME"
fuse-nfs \- A FUSE filesystem for NFS
.SH "SYNOPSIS"
.HP \w'\fBfuse\-nfs\ [\ OPTIONS\ ]\fR\ 'u
\fBfuse\-nfs [ OPTIONS ]\fR
.HP \w'\fBfuse\-nfs\fR\ 'u
\fBfuse\-nfs\fR [\-n\ \-\-nfs\-share=] [\-m\ \-\-mountpoint=] [\-a\ \-\-allow\-other] [\-?\ \-\-help] [\-\-usage]
.SH "DESCRIPTION"
.PP
fuse\-nfs is a FUSE filesystem that implements the NFS protocol\&.
.PP
Example: Mounting a filesystem
.sp
.if n \{\
.RS 4
.\}
.nf
$ fuse\-nfs \-n nfs://127\&.0\&.0\&.1/data/tmp \-m /data/sahlberg/foo
.fi
.if n \{\
.RE
.\}
.PP
Example: Unounting a filesystem
.sp
.if n \{\
.RS 4
.\}
.nf
$ fusermount \-u /data/sahlberg/foo
.fi
.if n \{\
.RE
.\}
.sp
.SH "OPTIONS"
.PP
\-a \-\-allow\-user
.RS 4
By default, only the user that mounted the FUSE filesystem will be able to access it\&. Use this argument to make the filesystem accessible to all users\&.
.RE
.PP
\-n \-\-nfs\-share=
.RS 4
Specify the server/export to mount\&.
.RE
.PP
\-m \-\-mountpoint=
.RS 4
The local mountpoint to use\&.
.RE
.PP
\-? \-\-help
.RS 4
Display basic help text\&.
.RE
.PP
\-\-usage
.RS 4
Display basic usage text\&.
.RE
.SH "NFS\-URL"
.PP
Libnfs uses RFC2224 style URLs extended with libnfs specific url arguments and some minor extensions\&. The basic syntax of these URLs is
.sp
.if n \{\
.RS 4
.\}
.nf
nfs:///path[?arg=val[&arg=val]*]
.fi
.if n \{\
.RE
.\}
.sp
.PP
URL Arguments:
.PP
tcp\-syncnt=
.RS 4
Number of SYNs to send during the session establish before failing setting up the tcp connection to the server\&.
.RE
.PP
uid=
.RS 4
UID value to use when talking to the server\&. default it 65534 on Windows and getuid() on unixen\&.
.RE
.PP
gid=
.RS 4
GID value to use when talking to the server\&. default it 65534 on Windows and getgid() on unixen\&.
.RE
.PP
readahead=
.RS 4
Enable readahead for files and set the maximum amount of readahead to \&.
.RE
.PP
auto\-traverse\-mounts=<0|1>
.RS 4
Should libnfs try to traverse across nested mounts automatically or not\&. Default is 1 == enabled\&.
.RE
.SH "ROOT VS NON\-ROOT"
.PP
NFS servers by default restrict access to only those clients that connect from a systems port, i\&.e\&. a port number less than 1024\&. In Un*x access to these ports are traditionally reserved to the root user which means that a non\-root user will normally not be able to use fuse\-nfs to access an NFS share\&.
.PP
There are two ways to solve this and allow non\-root users to use fuse\-nfs:
.SS "cap_net_bind_service"
.PP
Adding this capability to the fuse\-nfs binary the linux kernel will now allow the use of systems port for any user of this binary which will allow fuse\-nfs to connect to the server\&.
.sp
.if n \{\
.RS 4
.\}
.nf
$ sudo setcap \*(Aqcap_net_bind_service=+ep\*(Aq fuse\-nfs
.fi
.if n \{\
.RE
.\}
.SS "insecure mode"
.PP
Alternatively you can disable the check in the NFS server that blocks non\-system ports from connecting\&. In Linux NFS servers this is done by adding the "insecure" option to /etc/exports
.SH "SEE ALSO"
.PP
\m[blue]\fB\%http://github.com/sahlberg/libnfs\fR\m[]
================================================
FILE: doc/fuse-nfs.xml
================================================
fuse-nfs
1
fuse-nfs
fuse-nfs
fuse-nfs
A FUSE filesystem for NFS
fuse-nfs [ OPTIONS ]
fuse-nfs
-n --nfs-share=<NFS-URL>
-m --mountpoint=<path>
-a --allow-other
-? --help
--usage
DESCRIPTION
fuse-nfs is a FUSE filesystem that implements the NFS protocol.
Example: Mounting a filesystem
$ fuse-nfs -n nfs://127.0.0.1/data/tmp -m /data/sahlberg/foo
Example: Unounting a filesystem
$ fusermount -u /data/sahlberg/foo
OPTIONS
-a --allow-user
By default, only the user that mounted the FUSE filesystem will
be able to access it. Use this argument to make the filesystem
accessible to all users.
-n --nfs-share=<NFS-URL>
Specify the server/export to mount.
-m --mountpoint=<path>
The local mountpoint to use.
-? --help
Display basic help text.
--usage
Display basic usage text.
NFS-URL
Libnfs uses RFC2224 style URLs extended with libnfs specific url arguments
and some minor extensions.
The basic syntax of these URLs is
nfs://<server|ipv4|ipv6>/path[?arg=val[&arg=val]*]
URL Arguments:
tcp-syncnt=<int>
Number of SYNs to send during the session establish
before failing setting up the tcp connection to the
server.
uid=<int>
UID value to use when talking to the server.
default it 65534 on Windows and getuid() on unixen.
gid=<int>
GID value to use when talking to the server.
default it 65534 on Windows and getgid() on unixen.
readahead=<int>
Enable readahead for files and set the maximum amount
of readahead to <int>.
auto-traverse-mounts=<0|1>
Should libnfs try to traverse across nested mounts
automatically or not. Default is 1 == enabled.
ROOT vs NON-ROOT
NFS servers by default restrict access to only those clients that connect
from a systems port, i.e. a port number less than 1024. In Un*x access
to these ports are traditionally reserved to the root user which means
that a non-root user will normally not be able to use fuse-nfs to access
an NFS share.
There are two ways to solve this and allow non-root users to use fuse-nfs:
cap_net_bind_service
Adding this capability to the fuse-nfs binary the linux kernel will
now allow the use of systems port for any user of this binary which
will allow fuse-nfs to connect to the server.
$ sudo setcap 'cap_net_bind_service=+ep' fuse-nfs
insecure mode
Alternatively you can disable the check in the NFS server that blocks
non-system ports from connecting.
In Linux NFS servers this is done by adding the "insecure" option
to /etc/exports
SEE ALSO
================================================
FILE: fuse/Makefile.am
================================================
bin_PROGRAMS = fuse-nfs
AM_LDFLAGS = -lnfs $(LIBS)
================================================
FILE: fuse/fuse-nfs.c
================================================
/* -*- mode:c; tab-width:8; c-basic-offset:8; indent-tabs-mode:nil; -*- */
/*
Copyright (C) by Ronnie Sahlberg 2013
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 3 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, see .
*/
/* A FUSE filesystem based on libnfs. */
#define FUSE_USE_VERSION 26
#define _FILE_OFFSET_BITS 64
#include "../config.h"
#include
#include
#include
#include
#include
#include
#include
#ifndef WIN32
#include
#endif
#include
#include
#include
#include
#ifdef WIN32
#include
#include
#endif
#ifndef FUSE_STAT
#define FUSE_STAT stat
#endif
#define LOG(...) do { \
if (logfile) { \
FILE *fh = fopen(logfile, "a+"); \
time_t t = time(NULL); \
char tmp[256]; \
strftime(tmp, sizeof(tmp), "%T", localtime(&t));\
fprintf(fh, "[NFS] %s ", tmp); \
fprintf(fh, __VA_ARGS__); \
fclose(fh); \
} \
} while (0);
static char *logfile;
/* Only one thread at a time can enter libnfs */
static pthread_mutex_t nfs_mutex = PTHREAD_MUTEX_INITIALIZER;
#define discard_const(ptr) ((void *)((intptr_t)(ptr)))
struct nfs_context *nfs = NULL;
int custom_uid = -1;
int custom_gid = -1;
uid_t mount_user_uid;
gid_t mount_user_gid;
int fusenfs_allow_other_own_ids=0;
int fuse_default_permissions=1;
int fuse_multithreads=1;
#ifdef __MINGW32__
gid_t getgid(){
if( custom_gid == -1 )
return 65534;
return custom_gid;
}
uid_t getuid(){
if( custom_uid == -1 )
return 65534;
return custom_uid;
}
#endif
static int map_uid(int possible_uid) {
if (custom_uid != -1 && possible_uid == custom_uid){
return fuse_get_context()->uid;
}
return possible_uid;
}
static int map_gid(int possible_gid) {
if (custom_gid != -1 && possible_gid == custom_gid){
return fuse_get_context()->gid;
}
return possible_gid;
}
static int map_reverse_uid(int possible_uid) {
if (custom_uid != -1 && possible_uid == getuid()) {
return custom_uid;
}
return possible_uid;
}
static int map_reverse_gid(int possible_gid) {
if (custom_gid != -1 && possible_gid == getgid()){
return custom_gid;
}
return possible_gid;
}
struct sync_cb_data {
int is_finished;
int status;
void *return_data;
size_t max_size;
};
static void
wait_for_nfs_reply(struct nfs_context *nfs, struct sync_cb_data *cb_data)
{
struct pollfd pfd;
int revents;
int ret;
static pthread_mutex_t reply_mutex = PTHREAD_MUTEX_INITIALIZER;
pthread_mutex_lock(&reply_mutex);
while (!cb_data->is_finished) {
pfd.fd = nfs_get_fd(nfs);
pfd.events = nfs_which_events(nfs);
pfd.revents = 0;
ret = poll(&pfd, 1, 100);
if (ret < 0) {
revents = -1;
} else {
revents = pfd.revents;
}
pthread_mutex_lock(&nfs_mutex);
ret = nfs_service(nfs, revents);
pthread_mutex_unlock(&nfs_mutex);
if (ret < 0) {
cb_data->status = -EIO;
break;
}
}
pthread_mutex_unlock(&reply_mutex);
}
static void
generic_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
{
struct sync_cb_data *cb_data = private_data;
cb_data->is_finished = 1;
cb_data->status = status;
}
/* Update the rpc credentials to the current user unless
* have are overriding the credentials via url arguments.
*/
static void update_rpc_credentials(void) {
if (custom_uid == -1 && !fusenfs_allow_other_own_ids) {
nfs_set_uid(nfs, fuse_get_context()->uid);
} else if ((custom_uid == -1 ||
fuse_get_context()->uid != mount_user_uid)
&& fusenfs_allow_other_own_ids) {
nfs_set_uid(nfs, fuse_get_context()->uid);
} else {
nfs_set_uid(nfs, custom_uid);
}
if (custom_gid == -1 && !fusenfs_allow_other_own_ids) {
nfs_set_gid(nfs, fuse_get_context()->gid);
} else if ((custom_gid == -1 ||
fuse_get_context()->gid != mount_user_gid)
&& fusenfs_allow_other_own_ids) {
nfs_set_gid(nfs, fuse_get_context()->gid);
} else {
nfs_set_gid(nfs, custom_gid);
}
}
static void
stat64_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
{
struct sync_cb_data *cb_data = private_data;
cb_data->is_finished = 1;
cb_data->status = status;
LOG("stat64_cb status:%d\n", status);
if (status < 0) {
return;
}
memcpy(cb_data->return_data, data, sizeof(struct nfs_stat_64));
}
static int
fuse_nfs_getattr(const char *path, struct FUSE_STAT *stbuf)
{
struct nfs_stat_64 st;
struct sync_cb_data cb_data;
int ret;
LOG("fuse_nfs_getattr entered [%s]\n", path);
memset(&cb_data, 0, sizeof(struct sync_cb_data));
cb_data.return_data = &st;
pthread_mutex_lock(&nfs_mutex);
update_rpc_credentials();
ret = nfs_lstat64_async(nfs, path, stat64_cb, &cb_data);
pthread_mutex_unlock(&nfs_mutex);
if (ret < 0) {
return ret;
}
wait_for_nfs_reply(nfs, &cb_data);
stbuf->st_dev = st.nfs_dev;
stbuf->st_ino = st.nfs_ino;
stbuf->st_mode = st.nfs_mode;
stbuf->st_nlink = st.nfs_nlink;
stbuf->st_uid = map_uid(st.nfs_uid);
stbuf->st_gid = map_gid(st.nfs_gid);
stbuf->st_rdev = st.nfs_rdev;
stbuf->st_size = st.nfs_size;
stbuf->st_blksize = st.nfs_blksize;
stbuf->st_blocks = st.nfs_blocks;
#if defined(HAVE_ST_ATIM) || defined(__MINGW32__)
stbuf->st_atim.tv_sec = st.nfs_atime;
stbuf->st_atim.tv_nsec = st.nfs_atime_nsec;
stbuf->st_mtim.tv_sec = st.nfs_mtime;
stbuf->st_mtim.tv_nsec = st.nfs_mtime_nsec;
stbuf->st_ctim.tv_sec = st.nfs_ctime;
stbuf->st_ctim.tv_nsec = st.nfs_ctime_nsec;
#else
stbuf->st_atime = st.nfs_atime;
stbuf->st_mtime = st.nfs_mtime;
stbuf->st_ctime = st.nfs_ctime;
stbuf->st_atime_nsec = st.nfs_atime_nsec;
stbuf->st_mtime_nsec = st.nfs_mtime_nsec;
stbuf->st_ctime_nsec = st.nfs_ctime_nsec;
#endif
return cb_data.status;
}
static void
readdir_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
{
struct sync_cb_data *cb_data = private_data;
cb_data->is_finished = 1;
cb_data->status = status;
LOG("readdir_cb status:%d\n", status);
if (status < 0) {
return;
}
cb_data->return_data = data;
}
static int
fuse_nfs_readdir(const char *path, void *buf, fuse_fill_dir_t filler,
off_t offset, struct fuse_file_info *fi)
{
struct nfsdir *nfsdir;
struct nfsdirent *nfsdirent;
struct sync_cb_data cb_data;
int ret;
LOG("fuse_nfs_readdir entered [%s]\n", path);
memset(&cb_data, 0, sizeof(struct sync_cb_data));
pthread_mutex_lock(&nfs_mutex);
update_rpc_credentials();
ret = nfs_opendir_async(nfs, path, readdir_cb, &cb_data);
pthread_mutex_unlock(&nfs_mutex);
if (ret < 0) {
return ret;
}
wait_for_nfs_reply(nfs, &cb_data);
nfsdir = cb_data.return_data;
while ((nfsdirent = nfs_readdir(nfs, nfsdir)) != NULL) {
filler(buf, nfsdirent->name, NULL, 0);
}
nfs_closedir(nfs, nfsdir);
return cb_data.status;
}
static void
readlink_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
{
struct sync_cb_data *cb_data = private_data;
cb_data->is_finished = 1;
cb_data->status = status;
if (status < 0) {
return;
}
strncat(cb_data->return_data, data, cb_data->max_size);
}
static int
fuse_nfs_readlink(const char *path, char *buf, size_t size)
{
struct sync_cb_data cb_data;
int ret;
LOG("fuse_nfs_readlink entered [%s]\n", path);
memset(&cb_data, 0, sizeof(struct sync_cb_data));
*buf = 0;
cb_data.return_data = buf;
cb_data.max_size = size;
pthread_mutex_lock(&nfs_mutex);
update_rpc_credentials();
ret = nfs_readlink_async(nfs, path, readlink_cb, &cb_data);
pthread_mutex_unlock(&nfs_mutex);
if (ret < 0) {
return ret;
}
wait_for_nfs_reply(nfs, &cb_data);
return cb_data.status;
}
static void
open_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
{
struct sync_cb_data *cb_data = private_data;
cb_data->is_finished = 1;
cb_data->status = status;
LOG("open_cb status:%d\n", status);
if (status < 0) {
return;
}
cb_data->return_data = data;
}
static int
fuse_nfs_open(const char *path, struct fuse_file_info *fi)
{
struct sync_cb_data cb_data;
int ret;
LOG("fuse_nfs_open entered [%s]\n", path);
memset(&cb_data, 0, sizeof(struct sync_cb_data));
pthread_mutex_lock(&nfs_mutex);
update_rpc_credentials();
fi->fh = 0;
ret = nfs_open_async(nfs, path, fi->flags, open_cb, &cb_data);
pthread_mutex_unlock(&nfs_mutex);
if (ret < 0) {
return ret;
}
wait_for_nfs_reply(nfs, &cb_data);
fi->fh = (uint64_t)cb_data.return_data;
return cb_data.status;
}
static int fuse_nfs_release(const char *path, struct fuse_file_info *fi)
{
struct sync_cb_data cb_data;
struct nfsfh *nfsfh = (struct nfsfh *)fi->fh;
memset(&cb_data, 0, sizeof(struct sync_cb_data));
pthread_mutex_lock(&nfs_mutex);
nfs_close_async(nfs, nfsfh, generic_cb, &cb_data);
pthread_mutex_unlock(&nfs_mutex);
wait_for_nfs_reply(nfs, &cb_data);
return 0;
}
static void
read_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
{
struct sync_cb_data *cb_data = private_data;
cb_data->is_finished = 1;
cb_data->status = status;
if (status < 0) {
return;
}
}
static int
fuse_nfs_read(const char *path, char *buf, size_t size,
off_t offset, struct fuse_file_info *fi)
{
struct nfsfh *nfsfh = (struct nfsfh *)fi->fh;
struct sync_cb_data cb_data;
int ret;
LOG("fuse_nfs_read entered [%s]\n", path);
memset(&cb_data, 0, sizeof(struct sync_cb_data));
pthread_mutex_lock(&nfs_mutex);
update_rpc_credentials();
#ifdef LIBNFS_API_V2
ret = nfs_pread_async(nfs, nfsfh, buf, size, offset, read_cb, &cb_data);
#else
ret = nfs_pread_async(nfs, nfsfh, offset, size, read_cb, &cb_data);
#endif
pthread_mutex_unlock(&nfs_mutex);
if (ret < 0) {
return ret;
}
wait_for_nfs_reply(nfs, &cb_data);
return cb_data.status;
}
static int fuse_nfs_write(const char *path, const char *buf, size_t size,
off_t offset, struct fuse_file_info *fi)
{
struct nfsfh *nfsfh = (struct nfsfh *)fi->fh;
struct sync_cb_data cb_data;
int ret;
LOG("fuse_nfs_write entered [%s]\n", path);
memset(&cb_data, 0, sizeof(struct sync_cb_data));
pthread_mutex_lock(&nfs_mutex);
update_rpc_credentials();
#ifdef LIBNFS_API_V2
ret = nfs_pwrite_async(nfs, nfsfh, discard_const(buf), size, offset,
generic_cb, &cb_data);
#else
ret = nfs_pwrite_async(nfs, nfsfh, offset, size, discard_const(buf),
generic_cb, &cb_data);
#endif
pthread_mutex_unlock(&nfs_mutex);
if (ret < 0) {
return ret;
}
wait_for_nfs_reply(nfs, &cb_data);
return cb_data.status;
}
static int fuse_nfs_create(const char *path, mode_t mode, struct fuse_file_info *fi)
{
struct sync_cb_data cb_data;
int ret = 0;
LOG("fuse_nfs_create entered [%s]\n", path);
memset(&cb_data, 0, sizeof(struct sync_cb_data));
pthread_mutex_lock(&nfs_mutex);
update_rpc_credentials();
ret = nfs_creat_async(nfs, path, mode, open_cb, &cb_data);
pthread_mutex_unlock(&nfs_mutex);
if (ret < 0) {
return ret;
}
wait_for_nfs_reply(nfs, &cb_data);
fi->fh = (uint64_t)cb_data.return_data;
return cb_data.status;
}
static int fuse_nfs_utime(const char *path, struct utimbuf *times)
{
struct sync_cb_data cb_data;
int ret;
LOG("fuse_nfs_utime entered [%s]\n", path);
memset(&cb_data, 0, sizeof(struct sync_cb_data));
pthread_mutex_lock(&nfs_mutex);
update_rpc_credentials();
ret = nfs_utime_async(nfs, path, times, generic_cb, &cb_data);
pthread_mutex_unlock(&nfs_mutex);
if (ret < 0) {
LOG("fuse_nfs_utime returned %d. %s\n", ret,
nfs_get_error(nfs));
return ret;
}
wait_for_nfs_reply(nfs, &cb_data);
return cb_data.status;
}
static int fuse_nfs_unlink(const char *path)
{
struct sync_cb_data cb_data;
int ret;
LOG("fuse_nfs_unlink entered [%s]\n", path);
memset(&cb_data, 0, sizeof(struct sync_cb_data));
pthread_mutex_lock(&nfs_mutex);
update_rpc_credentials();
ret = nfs_unlink_async(nfs, path, generic_cb, &cb_data);
pthread_mutex_unlock(&nfs_mutex);
if (ret < 0) {
return ret;
}
wait_for_nfs_reply(nfs, &cb_data);
return cb_data.status;
}
static int fuse_nfs_rmdir(const char *path)
{
struct sync_cb_data cb_data;
int ret;
LOG("fuse_nfs_mknod entered [%s]\n", path);
memset(&cb_data, 0, sizeof(struct sync_cb_data));
pthread_mutex_lock(&nfs_mutex);
update_rpc_credentials();
ret = nfs_rmdir_async(nfs, path, generic_cb, &cb_data);
pthread_mutex_unlock(&nfs_mutex);
if (ret < 0) {
return ret;
}
wait_for_nfs_reply(nfs, &cb_data);
return cb_data.status;
}
static int
fuse_nfs_mkdir(const char *path, mode_t mode)
{
struct sync_cb_data cb_data;
int ret;
LOG("fuse_nfs_mkdir entered [%s]\n", path);
memset(&cb_data, 0, sizeof(struct sync_cb_data));
pthread_mutex_lock(&nfs_mutex);
update_rpc_credentials();
ret = nfs_mkdir_async(nfs, path, generic_cb, &cb_data);
pthread_mutex_unlock(&nfs_mutex);
if (ret < 0) {
return ret;
}
wait_for_nfs_reply(nfs, &cb_data);
cb_data.is_finished = 0;
pthread_mutex_lock(&nfs_mutex);
update_rpc_credentials();
ret = nfs_chmod_async(nfs, path, mode, generic_cb, &cb_data);
pthread_mutex_unlock(&nfs_mutex);
if (ret < 0) {
return ret;
}
wait_for_nfs_reply(nfs, &cb_data);
return cb_data.status;
}
static int fuse_nfs_mknod(const char *path, mode_t mode, dev_t rdev)
{
struct sync_cb_data cb_data;
int ret;
LOG("fuse_nfs_mknod entered [%s]\n", path);
memset(&cb_data, 0, sizeof(struct sync_cb_data));
pthread_mutex_lock(&nfs_mutex);
update_rpc_credentials();
ret = nfs_mknod_async(nfs, path, mode, rdev, generic_cb, &cb_data);
pthread_mutex_unlock(&nfs_mutex);
if (ret < 0) {
return ret;
}
wait_for_nfs_reply(nfs, &cb_data);
return cb_data.status;
}
static int fuse_nfs_symlink(const char *from, const char *to)
{
struct sync_cb_data cb_data;
int ret;
LOG("fuse_nfs_symlink entered [%s -> %s]\n", from, to);
memset(&cb_data, 0, sizeof(struct sync_cb_data));
pthread_mutex_lock(&nfs_mutex);
update_rpc_credentials();
ret = nfs_symlink_async(nfs, from, to, generic_cb, &cb_data);
pthread_mutex_unlock(&nfs_mutex);
if (ret < 0) {
return ret;
}
wait_for_nfs_reply(nfs, &cb_data);
return cb_data.status;
}
static int fuse_nfs_rename(const char *from, const char *to)
{
struct sync_cb_data cb_data;
int ret;
LOG("fuse_nfs_rename entered [%s -> %s]\n", from, to);
memset(&cb_data, 0, sizeof(struct sync_cb_data));
pthread_mutex_lock(&nfs_mutex);
update_rpc_credentials();
ret = nfs_rename_async(nfs, from, to, generic_cb, &cb_data);
pthread_mutex_unlock(&nfs_mutex);
if (ret < 0) {
return ret;
}
wait_for_nfs_reply(nfs, &cb_data);
return cb_data.status;
}
static int
fuse_nfs_link(const char *from, const char *to)
{
struct sync_cb_data cb_data;
int ret;
LOG("fuse_nfs_link entered [%s -> %s]\n", from, to);
memset(&cb_data, 0, sizeof(struct sync_cb_data));
pthread_mutex_lock(&nfs_mutex);
update_rpc_credentials();
ret = nfs_link_async(nfs, from, to, generic_cb, &cb_data);
pthread_mutex_unlock(&nfs_mutex);
if (ret < 0) {
return ret;
}
wait_for_nfs_reply(nfs, &cb_data);
return cb_data.status;
}
static int
fuse_nfs_chmod(const char *path, mode_t mode)
{
struct sync_cb_data cb_data;
int ret;
LOG("fuse_nfs_chmod entered [%s]\n", path);
memset(&cb_data, 0, sizeof(struct sync_cb_data));
pthread_mutex_lock(&nfs_mutex);
update_rpc_credentials();
ret = nfs_chmod_async(nfs, path, mode, generic_cb, &cb_data);
pthread_mutex_unlock(&nfs_mutex);
if (ret < 0) {
return ret;
}
wait_for_nfs_reply(nfs, &cb_data);
return cb_data.status;
}
static int fuse_nfs_chown(const char *path, uid_t uid, gid_t gid)
{
struct sync_cb_data cb_data;
int ret;
LOG("fuse_nfs_chown entered [%s]\n", path);
memset(&cb_data, 0, sizeof(struct sync_cb_data));
pthread_mutex_lock(&nfs_mutex);
update_rpc_credentials();
ret = nfs_chown_async(nfs, path,
map_reverse_uid(uid), map_reverse_gid(gid),
generic_cb, &cb_data);
pthread_mutex_unlock(&nfs_mutex);
if (ret < 0) {
return ret;
}
wait_for_nfs_reply(nfs, &cb_data);
return cb_data.status;
}
static int fuse_nfs_truncate(const char *path, off_t size)
{
struct sync_cb_data cb_data;
int ret;
LOG("fuse_nfs_truncate entered [%s]\n", path);
memset(&cb_data, 0, sizeof(struct sync_cb_data));
pthread_mutex_lock(&nfs_mutex);
update_rpc_credentials();
ret = nfs_truncate_async(nfs, path, size, generic_cb, &cb_data);
pthread_mutex_unlock(&nfs_mutex);
if (ret < 0) {
return ret;
}
wait_for_nfs_reply(nfs, &cb_data);
return cb_data.status;
}
static int
fuse_nfs_fsync(const char *path, int isdatasync,
struct fuse_file_info *fi)
{
struct nfsfh *nfsfh = (struct nfsfh *)fi->fh;
struct sync_cb_data cb_data;
int ret;
LOG("fuse_nfs_fsync entered [%s]\n", path);
memset(&cb_data, 0, sizeof(struct sync_cb_data));
pthread_mutex_lock(&nfs_mutex);
update_rpc_credentials();
ret = nfs_fsync_async(nfs, nfsfh, generic_cb, &cb_data);
pthread_mutex_unlock(&nfs_mutex);
if (ret < 0) {
return ret;
}
wait_for_nfs_reply(nfs, &cb_data);
return cb_data.status;
}
static void
statvfs_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
{
struct sync_cb_data *cb_data = private_data;
cb_data->is_finished = 1;
cb_data->status = status;
if (status < 0) {
return;
}
memcpy(cb_data->return_data, data, sizeof(struct statvfs));
}
static int
fuse_nfs_statfs(const char *path, struct statvfs* stbuf)
{
int ret;
struct statvfs svfs;
struct sync_cb_data cb_data;
LOG("fuse_nfs_statfs entered [%s]\n", path);
memset(&cb_data, 0, sizeof(struct sync_cb_data));
cb_data.return_data = &svfs;
pthread_mutex_lock(&nfs_mutex);
ret = nfs_statvfs_async(nfs, path, statvfs_cb, &cb_data);
pthread_mutex_unlock(&nfs_mutex);
if (ret < 0) {
return ret;
}
wait_for_nfs_reply(nfs, &cb_data);
stbuf->f_bsize = svfs.f_bsize;
stbuf->f_frsize = svfs.f_frsize;
stbuf->f_fsid = svfs.f_fsid;
stbuf->f_flag = svfs.f_flag;
stbuf->f_namemax = svfs.f_namemax;
stbuf->f_blocks = svfs.f_blocks;
stbuf->f_bfree = svfs.f_bfree;
stbuf->f_bavail = svfs.f_bavail;
stbuf->f_files = svfs.f_files;
stbuf->f_ffree = svfs.f_ffree;
stbuf->f_favail = svfs.f_favail;
return cb_data.status;
}
static struct fuse_operations nfs_oper = {
.chmod = fuse_nfs_chmod,
.chown = fuse_nfs_chown,
.create = fuse_nfs_create,
.fsync = fuse_nfs_fsync,
.getattr = fuse_nfs_getattr,
.link = fuse_nfs_link,
.mkdir = fuse_nfs_mkdir,
.mknod = fuse_nfs_mknod,
.open = fuse_nfs_open,
.read = fuse_nfs_read,
.readdir = fuse_nfs_readdir,
.readlink = fuse_nfs_readlink,
.release = fuse_nfs_release,
.rmdir = fuse_nfs_rmdir,
.unlink = fuse_nfs_unlink,
.utime = fuse_nfs_utime,
.rename = fuse_nfs_rename,
.symlink = fuse_nfs_symlink,
.truncate = fuse_nfs_truncate,
.write = fuse_nfs_write,
.statfs = fuse_nfs_statfs,
};
void print_usage(char *name)
{
printf("Usage : %s \n",name);
printf( "\t [-?|--help] \n"
"\nfuse-nfs options : \n"
"\t [-U NFS_UID|--fusenfs_uid=NFS_UID] \n"
"\t\t The uid passed within the rpc credentials within the mount point \n"
"\t\t This is the same as passing the uid within the url, however if both are defined then the url's one is used\n"
"\t [-G NFS_GID|--fusenfs_gid=NFS_GID] \n"
"\t\t The gid passed within the rpc credentials within the mount point \n"
"\t\t This is the same as passing the gid within the url, however if both are defined then the url's one is used\n"
"\t [-o|--fusenfs_allow_other_own_ids] \n"
"\t\t Allow fuse-nfs with allow_user activated to update the rpc credentials with the current (other) user credentials instead\n"
"\t\t of using the mount user credentials or (if defined) the custom credentials defined with -U/-G / url \n"
"\t\t This option activate allow_other, note that allow_other need user_allow_other to be defined in fuse.conf \n"
"\nlibnfs options : \n"
"\t [-n SHARE|--nfs_share=SHARE] \n"
"\t\t The server export to be mounted \n"
"\t [-m MNTPOINT|--mountpoint=MNTPOINT] \n"
"\t\t The client mount point \n"
"\nfuse options (see man mount.fuse): \n"
"\t [-p [0|1]|--default_permissions=[0|1]] \n"
"\t\t The fuse default_permissions option do not have any argument , for compatibility with previous fuse-nfs version default is activated (1)\n"
"\t\t with the possibility to overwrite this behavior (0) \n"
"\t [-t [0|1]|--multithread=[0|1]] \n"
"\t\t Multi-threaded by default (1) \n"
"\t [-a|--allow_other] \n"
"\t [-r|--allow_root] \n"
"\t [-u FUSE_UID|--uid=FUSE_UID] \n"
"\t [-g FUSE_GID|--gid=FUSE_GID] \n"
"\t [-K UMASK|--umask=UMASK] \n"
"\t [-d|--direct_io] \n"
"\t [-k|--kernel_cache] \n"
"\t [-c|--auto_cache] \n"
"\t [-E TIMEOUT|--entry_timeout=TIMEOUT] \n"
"\t [-N TIMEOUT|--negative_timeout=TIMEOUT] \n"
"\t [-T TIMEOUT|--attr_timeout=TIMEOUT] \n"
"\t [-C TIMEOUT|--ac_attr_timeout=TIMEOUT] \n"
"\t [-L|--logfile=logfile] \n"
"\t [-l|--large_read] \n"
"\t [-R MAX_READ|--max_read=MAX_READ] \n"
"\t [-H MAX_READAHEAD|--max_readahead=MAX_READAHEAD] \n"
"\t [-A|--async_read] \n"
"\t [-S|--sync_read] \n"
"\t [-W MAX_WRITE|--max_write=MAX_WRITE] \n"
"\t\t Default is 32768 \n"
"\t [-h|--hard_remove] \n"
"\t [-Y|--nonempty] \n"
"\t [-q|--use_ino] \n"
"\t [-Q|--readdir_ino] \n"
"\t [-f FSNAME|--fsname=FSNAME] \n"
"\t\t Default is the SHARE provided with -m \n"
"\t [-s SUBTYPE|--subtype=SUBTYPE] \n"
"\t\t Default is fuse-nfs with kernel prefexing with fuse. \n"
"\t [-b|--blkdev] \n"
"\t [-D|--debug] \n"
"\t [-i|--intr] \n"
"\t [-I SIGNAL|--intr_signal=SIGNAL] \n"
"\t [-O|--read_only] \n"
);
exit(0);
}
int main(int argc, char *argv[])
{
mount_user_uid=getuid();
mount_user_gid=getgid();
int ret = 0;
static struct option long_opts[] = {
/*fuse-nfs options*/
{ "help", no_argument, 0, '?' },
{ "nfs_share", required_argument, 0, 'n' },
{ "mountpoint", required_argument, 0, 'm' },
{ "fusenfs_uid", required_argument, 0, 'U' },
{ "fusenfs_gid", required_argument, 0, 'G' },
{ "fusenfs_allow_other_own_ids", no_argument, 0, 'o' },
/*fuse options*/
{ "allow_other", no_argument, 0, 'a' },
{ "uid", required_argument, 0, 'u' },
{ "gid", required_argument, 0, 'g' },
{ "debug", no_argument, 0, 'D' },
{ "default_permissions", required_argument, 0, 'p' },
{ "direct_io", no_argument, 0, 'd' },
{ "allow_root", no_argument, 0, 'r' },
{ "kernel_cache", no_argument, 0, 'k' },
{ "auto_cache", no_argument, 0, 'c' },
{ "large_read", no_argument, 0, 'l' },
{ "logfile", required_argument, 0, 'L' },
{ "hard_remove", no_argument, 0, 'h' },
{ "fsname", required_argument, 0, 'f' },
{ "subtype", required_argument, 0, 's' },
{ "blkdev", no_argument, 0, 'b' },
{ "intr", no_argument, 0, 'i' },
{ "max_read", required_argument, 0, 'R' },
{ "max_readahead", required_argument, 0, 'H' },
{ "async_read", no_argument, 0, 'A' },
{ "sync_read", no_argument, 0, 'S' },
{ "umask", required_argument, 0, 'K' },
{ "entry_timeout", required_argument, 0, 'E' },
{ "negative_timeout", required_argument, 0, 'N' },
{ "attr_timeout", required_argument, 0, 'T' },
{ "ac_attr_timeout", required_argument, 0, 'C' },
{ "nonempty", no_argument, 0, 'Y' },
{ "intr_signal", required_argument, 0, 'I' },
{ "use_ino", no_argument, 0, 'q' },
{ "readdir_ino", required_argument, 0, 'Q' },
{ "multithread", required_argument, 0, 't' },
{ "read_only", no_argument, 0, 'O' },
{ NULL, 0, 0, 0 }
};
int c;
int opt_idx = 0;
char *url = NULL;
char *mnt = NULL;
char *idstr = NULL;
char fuse_uid_arg[32] = {0};
char fuse_gid_arg[32] = {0};
char fuse_fsname_arg[1024] = {0};
char fuse_subtype_arg[1024] = {0};
char fuse_max_write_arg[32] = {0};
char fuse_max_read_arg[32] = {0};
char fuse_max_readahead_arg[32] = {0};
char fuse_Umask_arg[32] = {0};
char fuse_entry_timeout_arg[32] = {0};
char fuse_negative_timeout_arg[32] = {0};
char fuse_attr_timeout_arg[32] = {0};
char fuse_ac_attr_timeout_arg[32] = {0};
char fuse_intr_signal_arg[32] = {0};
struct nfs_url *urls = NULL;
int fuse_nfs_argc = 2;
char *fuse_nfs_argv[34] = {
"fuse-nfs",
"",
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
};
while ((c = getopt_long(argc, argv, "?am:n:U:G:u:g:Dp:drklL:hf:s:biR:W:H:ASK:E:N:T:C:oYI:qQct:O", long_opts, &opt_idx)) > 0) {
switch (c) {
case '?':
print_usage(argv[0]);
return 0;
case 'a':
fuse_nfs_argv[fuse_nfs_argc++] = "-oallow_other";
break;
case 'm':
mnt = strdup(optarg);
break;
case 'n':
url = strdup(optarg);
break;
case 'U':
custom_uid=atoi(optarg);
break;
case 'G':
custom_gid=atoi(optarg);
break;
case 'u':
snprintf(fuse_uid_arg, sizeof(fuse_uid_arg), "-ouid=%s", optarg);
fuse_nfs_argv[fuse_nfs_argc++] = fuse_uid_arg;
break;
case 'g':
snprintf(fuse_gid_arg, sizeof(fuse_gid_arg), "-ogid=%s", optarg);
fuse_nfs_argv[fuse_nfs_argc++] = fuse_gid_arg;
break;
case 'D':
fuse_nfs_argv[fuse_nfs_argc++] = "-odebug";
break;
case 'p':
fuse_default_permissions=atoi(optarg);
break;
case 't':
fuse_multithreads=atoi(optarg);
break;
case 'd':
fuse_nfs_argv[fuse_nfs_argc++] = "-odirect_io";
break;
case 'r':
fuse_nfs_argv[fuse_nfs_argc++] = "-oallow_root";
break;
case 'k':
fuse_nfs_argv[fuse_nfs_argc++] = "-okernel_cache";
break;
case 'c':
fuse_nfs_argv[fuse_nfs_argc++] = "-oauto_cache";
break;
case 'l':
fuse_nfs_argv[fuse_nfs_argc++] = "-olarge_read";
break;
case 'L':
logfile = strdup(optarg);
break;
case 'h':
fuse_nfs_argv[fuse_nfs_argc++] = "-ohard_remove";
break;
case 'f':
snprintf(fuse_fsname_arg, sizeof(fuse_fsname_arg), "-ofsname=%s", optarg);
fuse_nfs_argv[fuse_nfs_argc++] = fuse_fsname_arg;
break;
case 's':
snprintf(fuse_subtype_arg, sizeof(fuse_subtype_arg), "-osubtype=%s", optarg);
fuse_nfs_argv[fuse_nfs_argc++] = fuse_subtype_arg;
break;
case 'b':
fuse_nfs_argv[fuse_nfs_argc++] = "-oblkdev";
break;
case 'i':
fuse_nfs_argv[fuse_nfs_argc++] = "-ointr";
break;
case 'R':
snprintf(fuse_max_read_arg, sizeof(fuse_max_read_arg), "-omax_read=%s", optarg);
fuse_nfs_argv[fuse_nfs_argc++] = fuse_max_read_arg;
break;
case 'W':
snprintf(fuse_max_write_arg, sizeof(fuse_max_write_arg), "-omax_write=%s", optarg);
fuse_nfs_argv[fuse_nfs_argc++] = fuse_max_write_arg;
break;
case 'H':
snprintf(fuse_max_readahead_arg, sizeof(fuse_max_readahead_arg), "-omax_readahead=%s", optarg);
fuse_nfs_argv[fuse_nfs_argc++] = fuse_max_readahead_arg;
break;
case 'A':
fuse_nfs_argv[fuse_nfs_argc++] = "-oasync_read";
break;
case 'S':
fuse_nfs_argv[fuse_nfs_argc++] = "-osync_read";
break;
case 'K':
snprintf(fuse_Umask_arg, sizeof(fuse_Umask_arg), "-oumask=%s", optarg);
fuse_nfs_argv[fuse_nfs_argc++] = fuse_Umask_arg;
break;
case 'E':
snprintf(fuse_entry_timeout_arg, sizeof(fuse_entry_timeout_arg), "-oentry_timeout=%s", optarg);
fuse_nfs_argv[fuse_nfs_argc++] = fuse_entry_timeout_arg;
break;
case 'N':
snprintf(fuse_negative_timeout_arg, sizeof(fuse_negative_timeout_arg), "-onegative_timeout=%s", optarg);
fuse_nfs_argv[fuse_nfs_argc++] = fuse_negative_timeout_arg;
break;
case 'T':
snprintf(fuse_attr_timeout_arg, sizeof(fuse_attr_timeout_arg), "-oattr_timeout=%s", optarg);
fuse_nfs_argv[fuse_nfs_argc++] = fuse_attr_timeout_arg;
break;
case 'C':
snprintf(fuse_ac_attr_timeout_arg, sizeof(fuse_ac_attr_timeout_arg), "-oac_attr_timeout=%s", optarg);
fuse_nfs_argv[fuse_nfs_argc++] = fuse_ac_attr_timeout_arg;
break;
case 'o':
fusenfs_allow_other_own_ids=1;
break;
case 'Y':
fuse_nfs_argv[fuse_nfs_argc++] = "-ononempty";
break;
case 'I':
snprintf(fuse_intr_signal_arg, sizeof(fuse_intr_signal_arg), "-ointr_signal=%s", optarg);
fuse_nfs_argv[fuse_nfs_argc++] = fuse_intr_signal_arg;
break;
case 'q':
fuse_nfs_argv[fuse_nfs_argc++] = "-ouse_ino";
break;
case 'Q':
fuse_nfs_argv[fuse_nfs_argc++] = "-oreaddir_ino";
break;
case 'O':
fuse_nfs_argv[fuse_nfs_argc++] = "-oro";
break;
}
}
if (url == NULL) {
fprintf(stderr, "-n was not specified.\n");
print_usage(argv[0]);
ret = 10;
goto finished;
}
if (mnt == NULL) {
fprintf(stderr, "-m was not specified.\n");
print_usage(argv[0]);
ret = 10;
goto finished;
}
/* Set allow_other if not defined and fusenfs_allow_other_own_ids defined */
if (fusenfs_allow_other_own_ids)
{
int i = 0, allow_other_set=0;
for(i ; i < fuse_nfs_argc; ++i)
{
if(!strcmp(fuse_nfs_argv[i], "-oallow_other"))
{
allow_other_set=1;
break;
}
}
if (!allow_other_set){fuse_nfs_argv[fuse_nfs_argc++] = "-oallow_other";}
}
/* Set default fsname if not defined */
if (!strstr(fuse_fsname_arg, "-ofsname="))
{
snprintf(fuse_fsname_arg, sizeof(fuse_fsname_arg), "-ofsname=%s", url);
fuse_nfs_argv[fuse_nfs_argc++] = fuse_fsname_arg;
}
/* Set default subtype if not defined */
if (!strstr(fuse_subtype_arg, "-osubtype="))
{
snprintf(fuse_subtype_arg, sizeof(fuse_subtype_arg), "-osubtype=%s", "fuse-nfs");
fuse_nfs_argv[fuse_nfs_argc++] = fuse_subtype_arg;
}
if (!strstr(fuse_max_write_arg, "-omax_write="))
{
snprintf(fuse_max_write_arg, sizeof(fuse_max_write_arg), "-omax_write=%s", "32768");
fuse_nfs_argv[fuse_nfs_argc++] = fuse_max_write_arg;
}
/* Only for compatibility with previous version */
if (fuse_default_permissions){fuse_nfs_argv[fuse_nfs_argc++] = "-odefault_permissions";}
if (!fuse_multithreads){fuse_nfs_argv[fuse_nfs_argc++] = "-s";}
nfs = nfs_init_context();
if (nfs == NULL) {
fprintf(stderr, "Failed to init context\n");
ret = 10;
goto finished;
}
urls = nfs_parse_url_dir(nfs, url);
if (urls == NULL) {
fprintf(stderr, "Failed to parse url : %s\n", nfs_get_error(nfs));
ret = 10;
goto finished;
}
if (idstr = strstr(url, "uid=")) { custom_uid = atoi(&idstr[4]); }
if (idstr = strstr(url, "gid=")) { custom_gid = atoi(&idstr[4]); }
#ifdef WIN32
WSADATA wsaData;
WSAStartup(MAKEWORD(2,2),&wsaData);
#endif
ret = nfs_mount(nfs, urls->server, urls->path);
if (ret != 0) {
fprintf(stderr, "Failed to mount nfs share : %s\n", nfs_get_error(nfs));
goto finished;
}
fuse_nfs_argv[1] = mnt;
LOG("Starting fuse_main()\n");
ret = fuse_main(fuse_nfs_argc, fuse_nfs_argv, &nfs_oper, NULL);
finished:
nfs_destroy_url(urls);
if (nfs != NULL) {
nfs_destroy_context(nfs);
}
free(url);
free(mnt);
return ret;
}
================================================
FILE: fuse-nfs.pc.in
================================================
# fuse-nfs pkg-config file
prefix=@prefix@
exec_prefix=@exec_prefix@
libdir=@libdir@
includedir=@includedir@
Name: fuse-nfs
Description: fuse-nfs is a fuse module for NFSv3
Version: @VERSION@
Requires:
Conflicts:
Libs: -L${libdir} -lnfs
Cflags: -I${includedir}
================================================
FILE: setup.sh
================================================
#!/bin/sh
set -e
libtoolize
aclocal
autoheader
autoconf
automake --add-missing