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40 changed files with 8245 additions and 11317 deletions
-
2libfuse/Makefile
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11libfuse/fuse.pc.in
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17libfuse/include/Makefile.am
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87libfuse/include/cuse_lowlevel.h
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9libfuse/include/extern_c.h
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178libfuse/include/fuse.h
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59libfuse/include/fuse_common.h
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26libfuse/include/fuse_common_compat.h
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196libfuse/include/fuse_compat.h
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14libfuse/include/fuse_dirents.h
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105libfuse/include/fuse_lowlevel.h
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155libfuse/include/fuse_lowlevel_compat.h
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16libfuse/include/fuse_opt.h
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10libfuse/include/fuse_timeouts.h
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9libfuse/include/old/fuse.h
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24libfuse/include/ulockmgr.h
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42libfuse/lib/Makefile.am
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371libfuse/lib/cuse_lowlevel.c
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514libfuse/lib/fuse.c
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28libfuse/lib/fuse_i.h
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2libfuse/lib/fuse_kern_chan.c
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46libfuse/lib/fuse_loop.c
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275libfuse/lib/fuse_lowlevel.c
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7libfuse/lib/fuse_mt.c
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23libfuse/lib/fuse_opt.c
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33libfuse/lib/fuse_session.c
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1libfuse/lib/fuse_signals.c
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207libfuse/lib/fuse_versionscript
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137libfuse/lib/helper.c
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57libfuse/lib/mount_bsd.c
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44libfuse/lib/mount_generic.c
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444libfuse/lib/ulockmgr.c
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58libfuse/util/Makefile.am
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89libfuse/util/init_script
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1libfuse/util/udev.rules
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425libfuse/util/ulockmgr_server.c
@ -1,11 +0,0 @@ |
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prefix=@prefix@ |
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exec_prefix=@exec_prefix@ |
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libdir=@libdir@ |
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includedir=@includedir@ |
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Name: fuse |
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Description: Filesystem in Userspace |
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Version: @VERSION@ |
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Libs: -L${libdir} -lfuse -pthread |
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Libs.private: @libfuse_libs@ |
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Cflags: -I${includedir}/fuse -D_FILE_OFFSET_BITS=64 |
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@ -1,17 +0,0 @@ |
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## Process this file with automake to produce Makefile.in
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fuseincludedir=$(includedir)/fuse |
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fuseinclude_HEADERS = \
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fuse.h \
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fuse_compat.h \
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fuse_common.h \
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fuse_common_compat.h \
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fuse_lowlevel.h \
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fuse_lowlevel_compat.h \
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fuse_opt.h \
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cuse_lowlevel.h |
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include_HEADERS = old/fuse.h ulockmgr.h |
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noinst_HEADERS = fuse_kernel.h |
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@ -1,87 +0,0 @@ |
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/* |
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CUSE: Character device in Userspace |
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Copyright (C) 2008-2009 SUSE Linux Products GmbH |
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Copyright (C) 2008-2009 Tejun Heo <tj@kernel.org> |
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This program can be distributed under the terms of the GNU LGPLv2. |
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See the file COPYING.LIB. |
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Read example/cusexmp.c for usages. |
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*/ |
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#ifndef _CUSE_LOWLEVEL_H_ |
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#define _CUSE_LOWLEVEL_H_ |
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|
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#ifndef FUSE_USE_VERSION |
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#define FUSE_USE_VERSION 29 |
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#endif |
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#include "fuse_lowlevel.h" |
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#include <fcntl.h> |
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#include <sys/types.h> |
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#include <sys/uio.h> |
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#ifdef __cplusplus |
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extern "C" { |
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#endif |
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#define CUSE_UNRESTRICTED_IOCTL (1 << 0) /* use unrestricted ioctl */ |
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struct fuse_session; |
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struct cuse_info { |
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unsigned dev_major; |
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unsigned dev_minor; |
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unsigned dev_info_argc; |
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const char **dev_info_argv; |
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unsigned flags; |
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}; |
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/* |
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* Most ops behave almost identically to the matching fuse_lowlevel |
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* ops except that they don't take @ino. |
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* |
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* init_done : called after initialization is complete |
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* read/write : always direct IO, simultaneous operations allowed |
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* ioctl : might be in unrestricted mode depending on ci->flags |
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*/ |
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struct cuse_lowlevel_ops { |
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void (*init) (void *userdata, struct fuse_conn_info *conn); |
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void (*init_done) (void *userdata); |
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void (*destroy) (void *userdata); |
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void (*open) (fuse_req_t req, struct fuse_file_info *fi); |
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void (*read) (fuse_req_t req, size_t size, off_t off, |
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struct fuse_file_info *fi); |
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void (*write) (fuse_req_t req, const char *buf, size_t size, off_t off, |
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struct fuse_file_info *fi); |
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void (*flush) (fuse_req_t req, struct fuse_file_info *fi); |
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void (*release) (fuse_req_t req, struct fuse_file_info *fi); |
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void (*fsync) (fuse_req_t req, int datasync, struct fuse_file_info *fi); |
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void (*ioctl) (fuse_req_t req, int cmd, void *arg, |
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struct fuse_file_info *fi, unsigned int flags, |
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const void *in_buf, size_t in_bufsz, size_t out_bufsz); |
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void (*poll) (fuse_req_t req, struct fuse_file_info *fi, |
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struct fuse_pollhandle *ph); |
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}; |
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struct fuse_session *cuse_lowlevel_new(struct fuse_args *args, |
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const struct cuse_info *ci, |
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const struct cuse_lowlevel_ops *clop, |
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void *userdata); |
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struct fuse_session *cuse_lowlevel_setup(int argc, char *argv[], |
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const struct cuse_info *ci, |
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const struct cuse_lowlevel_ops *clop, |
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int *multithreaded, void *userdata); |
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void cuse_lowlevel_teardown(struct fuse_session *se); |
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int cuse_lowlevel_main(int argc, char *argv[], const struct cuse_info *ci, |
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const struct cuse_lowlevel_ops *clop, void *userdata); |
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#ifdef __cplusplus |
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} |
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#endif |
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#endif /* _CUSE_LOWLEVEL_H_ */ |
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@ -0,0 +1,9 @@ |
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#pragma once |
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#ifdef __cplusplus |
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#define EXTERN_C_BEGIN extern "C" { |
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#define EXTERN_C_END } |
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#else |
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#define EXTERN_C_BEGIN |
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#define EXTERN_C_END |
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#endif |
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@ -1,26 +0,0 @@ |
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/* |
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FUSE: Filesystem in Userspace |
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Copyright (C) 2001-2007 Miklos Szeredi <miklos@szeredi.hu> |
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This program can be distributed under the terms of the GNU LGPLv2. |
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See the file COPYING.LIB. |
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*/ |
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/* these definitions provide source compatibility to prior versions. |
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Do not include this file directly! */ |
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struct fuse_file_info_compat { |
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int flags; |
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unsigned long fh; |
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int writepage; |
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unsigned int direct_io : 1; |
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unsigned int keep_cache : 1; |
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}; |
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int fuse_mount_compat25(const char *mountpoint, struct fuse_args *args); |
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int fuse_mount_compat22(const char *mountpoint, const char *opts); |
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int fuse_mount_compat1(const char *mountpoint, const char *args[]); |
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void fuse_unmount_compat22(const char *mountpoint); |
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@ -1,196 +0,0 @@ |
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/* |
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FUSE: Filesystem in Userspace |
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Copyright (C) 2001-2007 Miklos Szeredi <miklos@szeredi.hu> |
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|
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This program can be distributed under the terms of the GNU LGPLv2. |
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See the file COPYING.LIB. |
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*/ |
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/* these definitions provide source compatibility to prior versions. |
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Do not include this file directly! */ |
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struct fuse_operations_compat25 { |
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int (*getattr) (const char *, struct stat *); |
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int (*readlink) (const char *, char *, size_t); |
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int (*mknod) (const char *, mode_t, dev_t); |
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int (*mkdir) (const char *, mode_t); |
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int (*unlink) (const char *); |
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int (*rmdir) (const char *); |
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int (*symlink) (const char *, const char *); |
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int (*rename) (const char *, const char *); |
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int (*link) (const char *, const char *); |
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int (*chmod) (const char *, mode_t); |
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int (*chown) (const char *, uid_t, gid_t); |
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int (*truncate) (const char *, off_t); |
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int (*utime) (const char *, struct utimbuf *); |
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int (*open) (const char *, struct fuse_file_info *); |
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int (*read) (const char *, char *, size_t, off_t, |
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struct fuse_file_info *); |
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int (*write) (const char *, const char *, size_t, off_t, |
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struct fuse_file_info *); |
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int (*statfs) (const char *, struct statvfs *); |
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int (*flush) (const char *, struct fuse_file_info *); |
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int (*release) (const char *, struct fuse_file_info *); |
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int (*fsync) (const char *, int, struct fuse_file_info *); |
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int (*setxattr) (const char *, const char *, const char *, size_t, int); |
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int (*getxattr) (const char *, const char *, char *, size_t); |
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int (*listxattr) (const char *, char *, size_t); |
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int (*removexattr) (const char *, const char *); |
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int (*opendir) (const char *, struct fuse_file_info *); |
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int (*readdir) (const char *, void *, off_t, |
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struct fuse_file_info *); |
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int (*releasedir) (const char *, struct fuse_file_info *); |
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int (*fsyncdir) (const char *, int, struct fuse_file_info *); |
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void *(*init) (void); |
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void (*destroy) (void *); |
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int (*access) (const char *, int); |
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int (*create) (const char *, mode_t, struct fuse_file_info *); |
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int (*ftruncate) (const char *, off_t, struct fuse_file_info *); |
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int (*fgetattr) (const char *, struct stat *, struct fuse_file_info *); |
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}; |
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struct fuse *fuse_new_compat25(int fd, struct fuse_args *args, |
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const struct fuse_operations_compat25 *op, |
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size_t op_size); |
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int fuse_main_real_compat25(int argc, char *argv[], |
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const struct fuse_operations_compat25 *op, |
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size_t op_size); |
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struct fuse *fuse_setup_compat25(int argc, char *argv[], |
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const struct fuse_operations_compat25 *op, |
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size_t op_size, char **mountpoint, |
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int *multithreaded, int *fd); |
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void fuse_teardown_compat22(struct fuse *fuse, int fd, char *mountpoint); |
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#if !defined(__FreeBSD__) && !defined(__NetBSD__) |
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#include <sys/statfs.h> |
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struct fuse_operations_compat22 { |
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int (*getattr) (const char *, struct stat *); |
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int (*readlink) (const char *, char *, size_t); |
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int (*mknod) (const char *, mode_t, dev_t); |
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int (*mkdir) (const char *, mode_t); |
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int (*unlink) (const char *); |
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int (*rmdir) (const char *); |
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int (*symlink) (const char *, const char *); |
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int (*rename) (const char *, const char *); |
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int (*link) (const char *, const char *); |
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int (*chmod) (const char *, mode_t); |
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int (*chown) (const char *, uid_t, gid_t); |
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int (*truncate) (const char *, off_t); |
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int (*utime) (const char *, struct utimbuf *); |
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int (*open) (const char *, struct fuse_file_info_compat *); |
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int (*read) (const char *, char *, size_t, off_t, |
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struct fuse_file_info_compat *); |
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int (*write) (const char *, const char *, size_t, off_t, |
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struct fuse_file_info_compat *); |
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int (*statfs) (const char *, struct statfs *); |
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int (*flush) (const char *, struct fuse_file_info_compat *); |
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int (*release) (const char *, struct fuse_file_info_compat *); |
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int (*fsync) (const char *, int, struct fuse_file_info_compat *); |
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int (*setxattr) (const char *, const char *, const char *, size_t, int); |
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int (*getxattr) (const char *, const char *, char *, size_t); |
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int (*listxattr) (const char *, char *, size_t); |
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int (*removexattr) (const char *, const char *); |
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int (*opendir) (const char *, struct fuse_file_info_compat *); |
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int (*readdir) (const char *, void *, off_t, |
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struct fuse_file_info_compat *); |
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int (*releasedir) (const char *, struct fuse_file_info_compat *); |
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int (*fsyncdir) (const char *, int, struct fuse_file_info_compat *); |
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void *(*init) (void); |
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void (*destroy) (void *); |
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}; |
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struct fuse *fuse_new_compat22(int fd, const char *opts, |
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const struct fuse_operations_compat22 *op, |
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size_t op_size); |
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struct fuse *fuse_setup_compat22(int argc, char *argv[], |
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const struct fuse_operations_compat22 *op, |
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size_t op_size, char **mountpoint, |
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int *multithreaded, int *fd); |
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int fuse_main_real_compat22(int argc, char *argv[], |
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const struct fuse_operations_compat22 *op, |
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size_t op_size); |
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struct fuse_operations_compat2 { |
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int (*getattr) (const char *, struct stat *); |
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int (*readlink) (const char *, char *, size_t); |
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int (*mknod) (const char *, mode_t, dev_t); |
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int (*mkdir) (const char *, mode_t); |
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int (*unlink) (const char *); |
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int (*rmdir) (const char *); |
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int (*symlink) (const char *, const char *); |
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int (*rename) (const char *, const char *); |
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int (*link) (const char *, const char *); |
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int (*chmod) (const char *, mode_t); |
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int (*chown) (const char *, uid_t, gid_t); |
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int (*truncate) (const char *, off_t); |
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int (*utime) (const char *, struct utimbuf *); |
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int (*open) (const char *, int); |
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int (*read) (const char *, char *, size_t, off_t); |
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int (*write) (const char *, const char *, size_t, off_t); |
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int (*statfs) (const char *, struct statfs *); |
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int (*flush) (const char *); |
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int (*release) (const char *, int); |
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int (*fsync) (const char *, int); |
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int (*setxattr) (const char *, const char *, const char *, |
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size_t, int); |
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int (*getxattr) (const char *, const char *, char *, size_t); |
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int (*listxattr) (const char *, char *, size_t); |
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int (*removexattr) (const char *, const char *); |
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}; |
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int fuse_main_compat2(int argc, char *argv[], |
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const struct fuse_operations_compat2 *op); |
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struct fuse *fuse_new_compat2(int fd, const char *opts, |
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const struct fuse_operations_compat2 *op); |
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struct fuse *fuse_setup_compat2(int argc, char *argv[], |
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const struct fuse_operations_compat2 *op, |
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char **mountpoint, int *multithreaded, int *fd); |
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struct fuse_statfs_compat1 { |
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long block_size; |
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long blocks; |
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long blocks_free; |
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long files; |
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long files_free; |
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long namelen; |
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}; |
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struct fuse_operations_compat1 { |
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int (*getattr) (const char *, struct stat *); |
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int (*readlink) (const char *, char *, size_t); |
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int (*mknod) (const char *, mode_t, dev_t); |
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int (*mkdir) (const char *, mode_t); |
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int (*unlink) (const char *); |
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int (*rmdir) (const char *); |
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int (*symlink) (const char *, const char *); |
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int (*rename) (const char *, const char *); |
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int (*link) (const char *, const char *); |
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int (*chmod) (const char *, mode_t); |
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int (*chown) (const char *, uid_t, gid_t); |
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int (*truncate) (const char *, off_t); |
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int (*utime) (const char *, struct utimbuf *); |
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int (*open) (const char *, int); |
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int (*read) (const char *, char *, size_t, off_t); |
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int (*write) (const char *, const char *, size_t, off_t); |
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int (*statfs) (struct fuse_statfs_compat1 *); |
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int (*release) (const char *, int); |
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int (*fsync) (const char *, int); |
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}; |
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#define FUSE_DEBUG_COMPAT1 (1 << 1) |
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struct fuse *fuse_new_compat1(int fd, int flags, |
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const struct fuse_operations_compat1 *op); |
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void fuse_main_compat1(int argc, char *argv[], |
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const struct fuse_operations_compat1 *op); |
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#endif /* __FreeBSD__ || __NetBSD__ */ |
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@ -1,155 +0,0 @@ |
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/* |
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FUSE: Filesystem in Userspace |
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Copyright (C) 2001-2007 Miklos Szeredi <miklos@szeredi.hu> |
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|
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This program can be distributed under the terms of the GNU LGPLv2. |
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See the file COPYING.LIB. |
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*/ |
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|
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/* these definitions provide source compatibility to prior versions. |
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Do not include this file directly! */ |
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|
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struct fuse_lowlevel_ops_compat25 { |
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void (*init) (void *userdata); |
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void (*destroy) (void *userdata); |
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void (*lookup) (fuse_req_t req, fuse_ino_t parent, const char *name); |
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void (*forget) (fuse_req_t req, fuse_ino_t ino, unsigned long nlookup); |
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void (*getattr) (fuse_req_t req, fuse_ino_t ino, |
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struct fuse_file_info *fi); |
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void (*setattr) (fuse_req_t req, fuse_ino_t ino, struct stat *attr, |
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int to_set, struct fuse_file_info *fi); |
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void (*readlink) (fuse_req_t req, fuse_ino_t ino); |
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void (*mknod) (fuse_req_t req, fuse_ino_t parent, const char *name, |
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mode_t mode, dev_t rdev); |
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void (*mkdir) (fuse_req_t req, fuse_ino_t parent, const char *name, |
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mode_t mode); |
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void (*unlink) (fuse_req_t req, fuse_ino_t parent, const char *name); |
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void (*rmdir) (fuse_req_t req, fuse_ino_t parent, const char *name); |
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void (*symlink) (fuse_req_t req, const char *link, fuse_ino_t parent, |
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const char *name); |
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void (*rename) (fuse_req_t req, fuse_ino_t parent, const char *name, |
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fuse_ino_t newparent, const char *newname); |
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void (*link) (fuse_req_t req, fuse_ino_t ino, fuse_ino_t newparent, |
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const char *newname); |
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void (*open) (fuse_req_t req, fuse_ino_t ino, |
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struct fuse_file_info *fi); |
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void (*read) (fuse_req_t req, fuse_ino_t ino, size_t size, off_t off, |
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struct fuse_file_info *fi); |
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void (*write) (fuse_req_t req, fuse_ino_t ino, const char *buf, |
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size_t size, off_t off, struct fuse_file_info *fi); |
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void (*flush) (fuse_req_t req, fuse_ino_t ino, |
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struct fuse_file_info *fi); |
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void (*release) (fuse_req_t req, fuse_ino_t ino, |
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struct fuse_file_info *fi); |
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void (*fsync) (fuse_req_t req, fuse_ino_t ino, int datasync, |
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struct fuse_file_info *fi); |
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void (*opendir) (fuse_req_t req, fuse_ino_t ino, |
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struct fuse_file_info *fi); |
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void (*readdir) (fuse_req_t req, fuse_ino_t ino, size_t size, off_t off, |
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struct fuse_file_info *fi); |
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void (*releasedir) (fuse_req_t req, fuse_ino_t ino, |
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struct fuse_file_info *fi); |
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void (*fsyncdir) (fuse_req_t req, fuse_ino_t ino, int datasync, |
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struct fuse_file_info *fi); |
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void (*statfs) (fuse_req_t req); |
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void (*setxattr) (fuse_req_t req, fuse_ino_t ino, const char *name, |
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const char *value, size_t size, int flags); |
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void (*getxattr) (fuse_req_t req, fuse_ino_t ino, const char *name, |
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size_t size); |
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void (*listxattr) (fuse_req_t req, fuse_ino_t ino, size_t size); |
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void (*removexattr) (fuse_req_t req, fuse_ino_t ino, const char *name); |
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void (*access) (fuse_req_t req, fuse_ino_t ino, int mask); |
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void (*create) (fuse_req_t req, fuse_ino_t parent, const char *name, |
|||
mode_t mode, struct fuse_file_info *fi); |
|||
}; |
|||
|
|||
struct fuse_session *fuse_lowlevel_new_compat25(struct fuse_args *args, |
|||
const struct fuse_lowlevel_ops_compat25 *op, |
|||
size_t op_size, void *userdata); |
|||
|
|||
size_t fuse_dirent_size(size_t namelen); |
|||
|
|||
char *fuse_add_dirent(char *buf, const char *name, const struct stat *stbuf, |
|||
off_t off); |
|||
|
|||
#if !defined(__FreeBSD__) && !defined(__NetBSD__) |
|||
|
|||
#include <sys/statfs.h> |
|||
|
|||
struct fuse_lowlevel_ops_compat { |
|||
void (*init) (void *userdata); |
|||
void (*destroy) (void *userdata); |
|||
void (*lookup) (fuse_req_t req, fuse_ino_t parent, const char *name); |
|||
void (*forget) (fuse_req_t req, fuse_ino_t ino, unsigned long nlookup); |
|||
void (*getattr) (fuse_req_t req, fuse_ino_t ino, |
|||
struct fuse_file_info_compat *fi); |
|||
void (*setattr) (fuse_req_t req, fuse_ino_t ino, struct stat *attr, |
|||
int to_set, struct fuse_file_info_compat *fi); |
|||
void (*readlink) (fuse_req_t req, fuse_ino_t ino); |
|||
void (*mknod) (fuse_req_t req, fuse_ino_t parent, const char *name, |
|||
mode_t mode, dev_t rdev); |
|||
void (*mkdir) (fuse_req_t req, fuse_ino_t parent, const char *name, |
|||
mode_t mode); |
|||
void (*unlink) (fuse_req_t req, fuse_ino_t parent, const char *name); |
|||
void (*rmdir) (fuse_req_t req, fuse_ino_t parent, const char *name); |
|||
void (*symlink) (fuse_req_t req, const char *link, fuse_ino_t parent, |
|||
const char *name); |
|||
void (*rename) (fuse_req_t req, fuse_ino_t parent, const char *name, |
|||
fuse_ino_t newparent, const char *newname); |
|||
void (*link) (fuse_req_t req, fuse_ino_t ino, fuse_ino_t newparent, |
|||
const char *newname); |
|||
void (*open) (fuse_req_t req, fuse_ino_t ino, |
|||
struct fuse_file_info_compat *fi); |
|||
void (*read) (fuse_req_t req, fuse_ino_t ino, size_t size, off_t off, |
|||
struct fuse_file_info_compat *fi); |
|||
void (*write) (fuse_req_t req, fuse_ino_t ino, const char *buf, |
|||
size_t size, off_t off, struct fuse_file_info_compat *fi); |
|||
void (*flush) (fuse_req_t req, fuse_ino_t ino, |
|||
struct fuse_file_info_compat *fi); |
|||
void (*release) (fuse_req_t req, fuse_ino_t ino, |
|||
struct fuse_file_info_compat *fi); |
|||
void (*fsync) (fuse_req_t req, fuse_ino_t ino, int datasync, |
|||
struct fuse_file_info_compat *fi); |
|||
void (*opendir) (fuse_req_t req, fuse_ino_t ino, |
|||
struct fuse_file_info_compat *fi); |
|||
void (*readdir) (fuse_req_t req, fuse_ino_t ino, size_t size, off_t off, |
|||
struct fuse_file_info_compat *fi); |
|||
void (*releasedir) (fuse_req_t req, fuse_ino_t ino, |
|||
struct fuse_file_info_compat *fi); |
|||
void (*fsyncdir) (fuse_req_t req, fuse_ino_t ino, int datasync, |
|||
struct fuse_file_info_compat *fi); |
|||
void (*statfs) (fuse_req_t req); |
|||
void (*setxattr) (fuse_req_t req, fuse_ino_t ino, const char *name, |
|||
const char *value, size_t size, int flags); |
|||
void (*getxattr) (fuse_req_t req, fuse_ino_t ino, const char *name, |
|||
size_t size); |
|||
void (*listxattr) (fuse_req_t req, fuse_ino_t ino, size_t size); |
|||
void (*removexattr) (fuse_req_t req, fuse_ino_t ino, const char *name); |
|||
void (*access) (fuse_req_t req, fuse_ino_t ino, int mask); |
|||
void (*create) (fuse_req_t req, fuse_ino_t parent, const char *name, |
|||
mode_t mode, struct fuse_file_info_compat *fi); |
|||
}; |
|||
|
|||
int fuse_reply_statfs_compat(fuse_req_t req, const struct statfs *stbuf); |
|||
|
|||
int fuse_reply_open_compat(fuse_req_t req, |
|||
const struct fuse_file_info_compat *fi); |
|||
|
|||
struct fuse_session *fuse_lowlevel_new_compat(const char *opts, |
|||
const struct fuse_lowlevel_ops_compat *op, |
|||
size_t op_size, void *userdata); |
|||
|
|||
#endif /* __FreeBSD__ || __NetBSD__ */ |
|||
|
|||
struct fuse_chan_ops_compat24 { |
|||
int (*receive)(struct fuse_chan *ch, char *buf, size_t size); |
|||
int (*send)(struct fuse_chan *ch, const struct iovec iov[], |
|||
size_t count); |
|||
void (*destroy)(struct fuse_chan *ch); |
|||
}; |
|||
|
|||
struct fuse_chan *fuse_chan_new_compat24(struct fuse_chan_ops_compat24 *op, |
|||
int fd, size_t bufsize, void *data); |
|||
|
|||
int fuse_chan_receive(struct fuse_chan *ch, char *buf, size_t size); |
|||
struct fuse_chan *fuse_kern_chan_new(int fd); |
|||
@ -0,0 +1,10 @@ |
|||
#pragma once |
|||
|
|||
#include <stdint.h> |
|||
|
|||
typedef struct fuse_timeouts_s fuse_timeouts_t; |
|||
struct fuse_timeouts_s |
|||
{ |
|||
uint64_t entry; |
|||
uint64_t attr; |
|||
}; |
|||
@ -1,9 +0,0 @@ |
|||
/* |
|||
This header is for compatibility with older software using FUSE. |
|||
|
|||
Please use 'pkg-config --cflags fuse' to set include path. The |
|||
correct usage is still '#include <fuse.h>', not '#include |
|||
<fuse/fuse.h>'. |
|||
*/ |
|||
|
|||
#include "fuse/fuse.h" |
|||
@ -1,24 +0,0 @@ |
|||
/* |
|||
libulockmgr: Userspace Lock Manager Library |
|||
Copyright (C) 2006 Miklos Szeredi <miklos@szeredi.hu> |
|||
|
|||
This program can be distributed under the terms of the GNU LGPLv2. |
|||
See the file COPYING.LIB. |
|||
*/ |
|||
|
|||
#include <stdint.h> |
|||
#include <fcntl.h> |
|||
#include <sys/types.h> |
|||
|
|||
/** |
|||
* Perform POSIX locking operation |
|||
* |
|||
* @param fd the file descriptor |
|||
* @param cmd the locking command (F_GETFL, F_SETLK or F_SETLKW) |
|||
* @param lock the lock parameters |
|||
* @param owner the lock owner ID cookie |
|||
* @param owner_len length of the lock owner ID cookie |
|||
* @return 0 on success -errno on error |
|||
*/ |
|||
int ulockmgr_op(int fd, int cmd, struct flock *lock, const void *owner, |
|||
size_t owner_len); |
|||
@ -1,42 +0,0 @@ |
|||
## Process this file with automake to produce Makefile.in
|
|||
|
|||
AUTOMAKE_OPTIONS = subdir-objects |
|||
AM_CPPFLAGS = -I$(top_srcdir)/include -DFUSERMOUNT_DIR=\"$(bindir)\" \
|
|||
-D_FILE_OFFSET_BITS=64 -D_REENTRANT -DFUSE_USE_VERSION=26 |
|||
|
|||
lib_LTLIBRARIES = libfuse.la libulockmgr.la |
|||
|
|||
if BSD |
|||
mount_source = mount_bsd.c |
|||
else |
|||
mount_source = mount.c mount_util.c mount_util.h |
|||
endif |
|||
|
|||
libfuse_la_SOURCES = \
|
|||
fuse.c \
|
|||
fuse_i.h \
|
|||
fuse_kern_chan.c \
|
|||
fuse_loop.c \
|
|||
fuse_loop_mt.c \
|
|||
fuse_lowlevel.c \
|
|||
fuse_misc.h \
|
|||
fuse_mt.c \
|
|||
fuse_opt.c \
|
|||
fuse_session.c \
|
|||
fuse_signals.c \
|
|||
buffer.c \
|
|||
cuse_lowlevel.c \
|
|||
helper.c \
|
|||
$(mount_source) |
|||
|
|||
libfuse_la_LDFLAGS = -pthread @libfuse_libs@ -version-number 2:9:7 \
|
|||
-Wl,--version-script,$(srcdir)/fuse_versionscript |
|||
|
|||
if NETBSD |
|||
libfuse_la_LIBADD = -lperfuse -lpuffs |
|||
endif |
|||
|
|||
libulockmgr_la_SOURCES = ulockmgr.c |
|||
libulockmgr_la_LDFLAGS = -pthread -version-number 1:0:1 |
|||
|
|||
EXTRA_DIST = fuse_versionscript |
|||
@ -1,371 +0,0 @@ |
|||
/* |
|||
CUSE: Character device in Userspace |
|||
Copyright (C) 2008 SUSE Linux Products GmbH |
|||
Copyright (C) 2008 Tejun Heo <teheo@suse.de> |
|||
|
|||
This program can be distributed under the terms of the GNU LGPLv2. |
|||
See the file COPYING.LIB. |
|||
*/ |
|||
|
|||
#include "cuse_lowlevel.h" |
|||
#include "fuse_kernel.h" |
|||
#include "fuse_i.h" |
|||
#include "fuse_opt.h" |
|||
#include "fuse_misc.h" |
|||
|
|||
#include <stdio.h> |
|||
#include <string.h> |
|||
#include <stdlib.h> |
|||
#include <stddef.h> |
|||
#include <errno.h> |
|||
#include <unistd.h> |
|||
|
|||
struct cuse_data { |
|||
struct cuse_lowlevel_ops clop; |
|||
unsigned max_read; |
|||
unsigned dev_major; |
|||
unsigned dev_minor; |
|||
unsigned flags; |
|||
unsigned dev_info_len; |
|||
char dev_info[]; |
|||
}; |
|||
|
|||
static struct cuse_lowlevel_ops *req_clop(fuse_req_t req) |
|||
{ |
|||
return &req->f->cuse_data->clop; |
|||
} |
|||
|
|||
static void cuse_fll_open(fuse_req_t req, fuse_ino_t ino, |
|||
struct fuse_file_info *fi) |
|||
{ |
|||
(void)ino; |
|||
req_clop(req)->open(req, fi); |
|||
} |
|||
|
|||
static void cuse_fll_read(fuse_req_t req, fuse_ino_t ino, size_t size, |
|||
off_t off, struct fuse_file_info *fi) |
|||
{ |
|||
(void)ino; |
|||
req_clop(req)->read(req, size, off, fi); |
|||
} |
|||
|
|||
static void cuse_fll_write(fuse_req_t req, fuse_ino_t ino, const char *buf, |
|||
size_t size, off_t off, struct fuse_file_info *fi) |
|||
{ |
|||
(void)ino; |
|||
req_clop(req)->write(req, buf, size, off, fi); |
|||
} |
|||
|
|||
static void cuse_fll_flush(fuse_req_t req, fuse_ino_t ino, |
|||
struct fuse_file_info *fi) |
|||
{ |
|||
(void)ino; |
|||
req_clop(req)->flush(req, fi); |
|||
} |
|||
|
|||
static void cuse_fll_release(fuse_req_t req, fuse_ino_t ino, |
|||
struct fuse_file_info *fi) |
|||
{ |
|||
(void)ino; |
|||
req_clop(req)->release(req, fi); |
|||
} |
|||
|
|||
static void cuse_fll_fsync(fuse_req_t req, fuse_ino_t ino, int datasync, |
|||
struct fuse_file_info *fi) |
|||
{ |
|||
(void)ino; |
|||
req_clop(req)->fsync(req, datasync, fi); |
|||
} |
|||
|
|||
static void cuse_fll_ioctl(fuse_req_t req, fuse_ino_t ino, int cmd, void *arg, |
|||
struct fuse_file_info *fi, unsigned int flags, |
|||
const void *in_buf, size_t in_bufsz, size_t out_bufsz) |
|||
{ |
|||
(void)ino; |
|||
req_clop(req)->ioctl(req, cmd, arg, fi, flags, in_buf, in_bufsz, |
|||
out_bufsz); |
|||
} |
|||
|
|||
static void cuse_fll_poll(fuse_req_t req, fuse_ino_t ino, |
|||
struct fuse_file_info *fi, struct fuse_pollhandle *ph) |
|||
{ |
|||
(void)ino; |
|||
req_clop(req)->poll(req, fi, ph); |
|||
} |
|||
|
|||
static size_t cuse_pack_info(int argc, const char **argv, char *buf) |
|||
{ |
|||
size_t size = 0; |
|||
int i; |
|||
|
|||
for (i = 0; i < argc; i++) { |
|||
size_t len; |
|||
|
|||
len = strlen(argv[i]) + 1; |
|||
size += len; |
|||
if (buf) { |
|||
memcpy(buf, argv[i], len); |
|||
buf += len; |
|||
} |
|||
} |
|||
|
|||
return size; |
|||
} |
|||
|
|||
static struct cuse_data *cuse_prep_data(const struct cuse_info *ci, |
|||
const struct cuse_lowlevel_ops *clop) |
|||
{ |
|||
struct cuse_data *cd; |
|||
size_t dev_info_len; |
|||
|
|||
dev_info_len = cuse_pack_info(ci->dev_info_argc, ci->dev_info_argv, |
|||
NULL); |
|||
|
|||
if (dev_info_len > CUSE_INIT_INFO_MAX) { |
|||
fprintf(stderr, "cuse: dev_info (%zu) too large, limit=%u\n", |
|||
dev_info_len, CUSE_INIT_INFO_MAX); |
|||
return NULL; |
|||
} |
|||
|
|||
cd = calloc(1, sizeof(*cd) + dev_info_len); |
|||
if (!cd) { |
|||
fprintf(stderr, "cuse: failed to allocate cuse_data\n"); |
|||
return NULL; |
|||
} |
|||
|
|||
memcpy(&cd->clop, clop, sizeof(cd->clop)); |
|||
cd->max_read = 131072; |
|||
cd->dev_major = ci->dev_major; |
|||
cd->dev_minor = ci->dev_minor; |
|||
cd->dev_info_len = dev_info_len; |
|||
cd->flags = ci->flags; |
|||
cuse_pack_info(ci->dev_info_argc, ci->dev_info_argv, cd->dev_info); |
|||
|
|||
return cd; |
|||
} |
|||
|
|||
struct fuse_session *cuse_lowlevel_new(struct fuse_args *args, |
|||
const struct cuse_info *ci, |
|||
const struct cuse_lowlevel_ops *clop, |
|||
void *userdata) |
|||
{ |
|||
struct fuse_lowlevel_ops lop; |
|||
struct cuse_data *cd; |
|||
struct fuse_session *se; |
|||
struct fuse_ll *ll; |
|||
|
|||
cd = cuse_prep_data(ci, clop); |
|||
if (!cd) |
|||
return NULL; |
|||
|
|||
memset(&lop, 0, sizeof(lop)); |
|||
lop.init = clop->init; |
|||
lop.destroy = clop->destroy; |
|||
lop.open = clop->open ? cuse_fll_open : NULL; |
|||
lop.read = clop->read ? cuse_fll_read : NULL; |
|||
lop.write = clop->write ? cuse_fll_write : NULL; |
|||
lop.flush = clop->flush ? cuse_fll_flush : NULL; |
|||
lop.release = clop->release ? cuse_fll_release : NULL; |
|||
lop.fsync = clop->fsync ? cuse_fll_fsync : NULL; |
|||
lop.ioctl = clop->ioctl ? cuse_fll_ioctl : NULL; |
|||
lop.poll = clop->poll ? cuse_fll_poll : NULL; |
|||
|
|||
se = fuse_lowlevel_new_common(args, &lop, sizeof(lop), userdata); |
|||
if (!se) { |
|||
free(cd); |
|||
return NULL; |
|||
} |
|||
ll = se->data; |
|||
ll->cuse_data = cd; |
|||
|
|||
return se; |
|||
} |
|||
|
|||
static int cuse_reply_init(fuse_req_t req, struct cuse_init_out *arg, |
|||
char *dev_info, unsigned dev_info_len) |
|||
{ |
|||
struct iovec iov[3]; |
|||
|
|||
iov[1].iov_base = arg; |
|||
iov[1].iov_len = sizeof(struct cuse_init_out); |
|||
iov[2].iov_base = dev_info; |
|||
iov[2].iov_len = dev_info_len; |
|||
|
|||
return fuse_send_reply_iov_nofree(req, 0, iov, 3); |
|||
} |
|||
|
|||
void cuse_lowlevel_init(fuse_req_t req, fuse_ino_t nodeid, const void *inarg) |
|||
{ |
|||
struct fuse_init_in *arg = (struct fuse_init_in *) inarg; |
|||
struct cuse_init_out outarg; |
|||
struct fuse_ll *f = req->f; |
|||
struct cuse_data *cd = f->cuse_data; |
|||
size_t bufsize = fuse_chan_bufsize(req->ch); |
|||
struct cuse_lowlevel_ops *clop = req_clop(req); |
|||
|
|||
(void) nodeid; |
|||
if (f->debug) { |
|||
fprintf(stderr, "CUSE_INIT: %u.%u\n", arg->major, arg->minor); |
|||
fprintf(stderr, "flags=0x%08x\n", arg->flags); |
|||
} |
|||
f->conn.proto_major = arg->major; |
|||
f->conn.proto_minor = arg->minor; |
|||
f->conn.capable = 0; |
|||
f->conn.want = 0; |
|||
|
|||
if (arg->major < 7) { |
|||
fprintf(stderr, "cuse: unsupported protocol version: %u.%u\n", |
|||
arg->major, arg->minor); |
|||
fuse_reply_err(req, EPROTO); |
|||
return; |
|||
} |
|||
|
|||
if (bufsize < FUSE_MIN_READ_BUFFER) { |
|||
fprintf(stderr, "cuse: warning: buffer size too small: %zu\n", |
|||
bufsize); |
|||
bufsize = FUSE_MIN_READ_BUFFER; |
|||
} |
|||
|
|||
bufsize -= 4096; |
|||
if (bufsize < f->conn.max_write) |
|||
f->conn.max_write = bufsize; |
|||
|
|||
f->got_init = 1; |
|||
if (f->op.init) |
|||
f->op.init(f->userdata, &f->conn); |
|||
|
|||
memset(&outarg, 0, sizeof(outarg)); |
|||
outarg.major = FUSE_KERNEL_VERSION; |
|||
outarg.minor = FUSE_KERNEL_MINOR_VERSION; |
|||
outarg.flags = cd->flags; |
|||
outarg.max_read = cd->max_read; |
|||
outarg.max_write = f->conn.max_write; |
|||
outarg.dev_major = cd->dev_major; |
|||
outarg.dev_minor = cd->dev_minor; |
|||
|
|||
if (f->debug) { |
|||
fprintf(stderr, " CUSE_INIT: %u.%u\n", |
|||
outarg.major, outarg.minor); |
|||
fprintf(stderr, " flags=0x%08x\n", outarg.flags); |
|||
fprintf(stderr, " max_read=0x%08x\n", outarg.max_read); |
|||
fprintf(stderr, " max_write=0x%08x\n", outarg.max_write); |
|||
fprintf(stderr, " dev_major=%u\n", outarg.dev_major); |
|||
fprintf(stderr, " dev_minor=%u\n", outarg.dev_minor); |
|||
fprintf(stderr, " dev_info: %.*s\n", cd->dev_info_len, |
|||
cd->dev_info); |
|||
} |
|||
|
|||
cuse_reply_init(req, &outarg, cd->dev_info, cd->dev_info_len); |
|||
|
|||
if (clop->init_done) |
|||
clop->init_done(f->userdata); |
|||
|
|||
fuse_free_req(req); |
|||
} |
|||
|
|||
struct fuse_session *cuse_lowlevel_setup(int argc, char *argv[], |
|||
const struct cuse_info *ci, |
|||
const struct cuse_lowlevel_ops *clop, |
|||
int *multithreaded, void *userdata) |
|||
{ |
|||
const char *devname = "/dev/cuse"; |
|||
static const struct fuse_opt kill_subtype_opts[] = { |
|||
FUSE_OPT_KEY("subtype=", FUSE_OPT_KEY_DISCARD), |
|||
FUSE_OPT_END |
|||
}; |
|||
struct fuse_args args = FUSE_ARGS_INIT(argc, argv); |
|||
struct fuse_session *se; |
|||
struct fuse_chan *ch; |
|||
int fd; |
|||
int foreground; |
|||
int res; |
|||
|
|||
res = fuse_parse_cmdline(&args, NULL, multithreaded, &foreground); |
|||
if (res == -1) |
|||
goto err_args; |
|||
|
|||
res = fuse_opt_parse(&args, NULL, kill_subtype_opts, NULL); |
|||
if (res == -1) |
|||
goto err_args; |
|||
|
|||
/* |
|||
* Make sure file descriptors 0, 1 and 2 are open, otherwise chaos |
|||
* would ensue. |
|||
*/ |
|||
do { |
|||
fd = open("/dev/null", O_RDWR); |
|||
if (fd > 2) |
|||
close(fd); |
|||
} while (fd >= 0 && fd <= 2); |
|||
|
|||
se = cuse_lowlevel_new(&args, ci, clop, userdata); |
|||
fuse_opt_free_args(&args); |
|||
if (se == NULL) |
|||
goto err_args; |
|||
|
|||
fd = open(devname, O_RDWR); |
|||
if (fd == -1) { |
|||
if (errno == ENODEV || errno == ENOENT) |
|||
fprintf(stderr, "cuse: device not found, try 'modprobe cuse' first\n"); |
|||
else |
|||
fprintf(stderr, "cuse: failed to open %s: %s\n", |
|||
devname, strerror(errno)); |
|||
goto err_se; |
|||
} |
|||
|
|||
ch = fuse_kern_chan_new(fd); |
|||
if (!ch) { |
|||
close(fd); |
|||
goto err_se; |
|||
} |
|||
|
|||
fuse_session_add_chan(se, ch); |
|||
|
|||
res = fuse_set_signal_handlers(se); |
|||
if (res == -1) |
|||
goto err_se; |
|||
|
|||
res = fuse_daemonize(foreground); |
|||
if (res == -1) |
|||
goto err_sig; |
|||
|
|||
return se; |
|||
|
|||
err_sig: |
|||
fuse_remove_signal_handlers(se); |
|||
err_se: |
|||
fuse_session_destroy(se); |
|||
err_args: |
|||
fuse_opt_free_args(&args); |
|||
return NULL; |
|||
} |
|||
|
|||
void cuse_lowlevel_teardown(struct fuse_session *se) |
|||
{ |
|||
fuse_remove_signal_handlers(se); |
|||
fuse_session_destroy(se); |
|||
} |
|||
|
|||
int cuse_lowlevel_main(int argc, char *argv[], const struct cuse_info *ci, |
|||
const struct cuse_lowlevel_ops *clop, void *userdata) |
|||
{ |
|||
struct fuse_session *se; |
|||
int multithreaded; |
|||
int res; |
|||
|
|||
se = cuse_lowlevel_setup(argc, argv, ci, clop, &multithreaded, |
|||
userdata); |
|||
if (se == NULL) |
|||
return 1; |
|||
|
|||
if (multithreaded) |
|||
res = fuse_session_loop_mt(se, 0); |
|||
else |
|||
res = fuse_session_loop(se); |
|||
|
|||
cuse_lowlevel_teardown(se); |
|||
if (res == -1) |
|||
return 1; |
|||
|
|||
return 0; |
|||
} |
|||
@ -1,46 +0,0 @@ |
|||
/* |
|||
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 "fuse_lowlevel.h" |
|||
|
|||
#include <stdio.h> |
|||
#include <stdlib.h> |
|||
#include <errno.h> |
|||
|
|||
int fuse_session_loop(struct fuse_session *se) |
|||
{ |
|||
int res = 0; |
|||
struct fuse_chan *ch = fuse_session_next_chan(se, NULL); |
|||
size_t bufsize = fuse_chan_bufsize(ch); |
|||
char *buf = (char*)calloc(bufsize,1); |
|||
if (!buf) { |
|||
fprintf(stderr, "fuse: failed to allocate read buffer\n"); |
|||
return -1; |
|||
} |
|||
|
|||
while (!fuse_session_exited(se)) { |
|||
struct fuse_chan *tmpch = ch; |
|||
struct fuse_buf fbuf = { |
|||
.mem = buf, |
|||
.size = bufsize, |
|||
}; |
|||
|
|||
res = fuse_session_receive_buf(se, &fbuf, &tmpch); |
|||
|
|||
if (res == -EINTR) |
|||
continue; |
|||
if (res <= 0) |
|||
break; |
|||
|
|||
fuse_session_process_buf(se, &fbuf, tmpch); |
|||
} |
|||
|
|||
free(buf); |
|||
fuse_session_reset(se); |
|||
return res < 0 ? -1 : 0; |
|||
} |
|||
@ -1,207 +0,0 @@ |
|||
FUSE_2.2 { |
|||
global: |
|||
fuse_destroy; |
|||
fuse_exit; |
|||
fuse_exited; |
|||
fuse_invalidate; |
|||
fuse_is_lib_option; |
|||
fuse_loop; |
|||
fuse_loop_mt; |
|||
fuse_loop_mt_proc; |
|||
fuse_main; |
|||
fuse_main_compat1; |
|||
fuse_main_compat2; |
|||
fuse_mount_compat1; |
|||
fuse_new_compat1; |
|||
fuse_new_compat2; |
|||
fuse_process_cmd; |
|||
fuse_read_cmd; |
|||
fuse_set_getcontext_func; |
|||
fuse_setup_compat2; |
|||
}; |
|||
|
|||
FUSE_2.4 { |
|||
global: |
|||
fuse_add_dirent; |
|||
fuse_chan_bufsize; |
|||
fuse_chan_data; |
|||
fuse_chan_destroy; |
|||
fuse_chan_fd; |
|||
fuse_chan_receive; |
|||
fuse_chan_send; |
|||
fuse_chan_session; |
|||
fuse_dirent_size; |
|||
fuse_kern_chan_new; |
|||
fuse_lowlevel_is_lib_option; |
|||
fuse_reply_attr; |
|||
fuse_reply_buf; |
|||
fuse_reply_entry; |
|||
fuse_reply_err; |
|||
fuse_reply_none; |
|||
fuse_reply_readlink; |
|||
fuse_reply_write; |
|||
fuse_reply_xattr; |
|||
fuse_req_userdata; |
|||
fuse_session_add_chan; |
|||
fuse_session_destroy; |
|||
fuse_session_exit; |
|||
fuse_session_exited; |
|||
fuse_session_loop; |
|||
fuse_session_loop_mt; |
|||
fuse_session_new; |
|||
fuse_session_next_chan; |
|||
fuse_session_process; |
|||
fuse_session_reset; |
|||
} FUSE_2.2; |
|||
|
|||
FUSE_2.5 { |
|||
global: |
|||
fuse_lowlevel_new_compat; |
|||
fuse_main_real_compat22; |
|||
fuse_mount_compat22; |
|||
fuse_new_compat22; |
|||
fuse_opt_parse; |
|||
fuse_opt_add_opt; |
|||
fuse_opt_add_arg; |
|||
fuse_opt_free_args; |
|||
fuse_opt_match; |
|||
fuse_parse_cmdline; |
|||
fuse_remove_signal_handlers; |
|||
fuse_reply_create; |
|||
fuse_reply_open; |
|||
fuse_reply_open_compat; |
|||
fuse_reply_statfs; |
|||
fuse_reply_statfs_compat; |
|||
fuse_setup_compat22; |
|||
fuse_set_signal_handlers; |
|||
} FUSE_2.4; |
|||
|
|||
FUSE_2.6 { |
|||
global: |
|||
fuse_add_direntry; |
|||
fuse_chan_new; |
|||
fuse_chan_new_compat24; |
|||
fuse_chan_recv; |
|||
fuse_daemonize; |
|||
fuse_get_session; |
|||
fuse_interrupted; |
|||
fuse_lowlevel_new; |
|||
fuse_lowlevel_new_compat25; |
|||
fuse_main_real; |
|||
fuse_main_real_compat25; |
|||
fuse_mount; |
|||
fuse_mount_compat25; |
|||
fuse_new; |
|||
fuse_new_compat25; |
|||
fuse_opt_insert_arg; |
|||
fuse_reply_lock; |
|||
fuse_req_interrupt_func; |
|||
fuse_req_interrupted; |
|||
fuse_session_remove_chan; |
|||
fuse_setup; |
|||
fuse_setup_compat25; |
|||
fuse_teardown; |
|||
fuse_teardown_compat22; |
|||
fuse_unmount; |
|||
fuse_unmount_compat22; |
|||
} FUSE_2.5; |
|||
|
|||
FUSE_2.7 { |
|||
global: |
|||
fuse_fs_access; |
|||
fuse_fs_bmap; |
|||
fuse_fs_chmod; |
|||
fuse_fs_chown; |
|||
fuse_fs_create; |
|||
fuse_fs_destroy; |
|||
fuse_fs_fgetattr; |
|||
fuse_fs_flush; |
|||
fuse_fs_fsync; |
|||
fuse_fs_fsyncdir; |
|||
fuse_fs_ftruncate; |
|||
fuse_fs_getattr; |
|||
fuse_fs_getxattr; |
|||
fuse_fs_init; |
|||
fuse_fs_link; |
|||
fuse_fs_listxattr; |
|||
fuse_fs_lock; |
|||
fuse_fs_mkdir; |
|||
fuse_fs_mknod; |
|||
fuse_fs_new; |
|||
fuse_fs_open; |
|||
fuse_fs_opendir; |
|||
fuse_fs_read; |
|||
fuse_fs_readdir; |
|||
fuse_fs_readlink; |
|||
fuse_fs_release; |
|||
fuse_fs_releasedir; |
|||
fuse_fs_removexattr; |
|||
fuse_fs_rename; |
|||
fuse_fs_rmdir; |
|||
fuse_fs_setxattr; |
|||
fuse_fs_statfs; |
|||
fuse_fs_symlink; |
|||
fuse_fs_truncate; |
|||
fuse_fs_unlink; |
|||
fuse_fs_utimens; |
|||
fuse_fs_write; |
|||
fuse_register_module; |
|||
fuse_reply_iov; |
|||
fuse_version; |
|||
} FUSE_2.6; |
|||
|
|||
FUSE_2.7.5 { |
|||
global: |
|||
fuse_reply_bmap; |
|||
} FUSE_2.7; |
|||
|
|||
FUSE_2.8 { |
|||
global: |
|||
cuse_lowlevel_new; |
|||
cuse_lowlevel_main; |
|||
cuse_lowlevel_setup; |
|||
cuse_lowlevel_teardown; |
|||
fuse_fs_ioctl; |
|||
fuse_fs_poll; |
|||
fuse_get_context; |
|||
fuse_getgroups; |
|||
fuse_lowlevel_notify_inval_entry; |
|||
fuse_lowlevel_notify_inval_inode; |
|||
fuse_lowlevel_notify_poll; |
|||
fuse_notify_poll; |
|||
fuse_opt_add_opt_escaped; |
|||
fuse_pollhandle_destroy; |
|||
fuse_reply_ioctl; |
|||
fuse_reply_ioctl_iov; |
|||
fuse_reply_ioctl_retry; |
|||
fuse_reply_poll; |
|||
fuse_req_ctx; |
|||
fuse_req_getgroups; |
|||
fuse_session_data; |
|||
} FUSE_2.7.5; |
|||
|
|||
FUSE_2.9 { |
|||
global: |
|||
fuse_buf_copy; |
|||
fuse_buf_size; |
|||
fuse_fs_read_buf; |
|||
fuse_fs_write_buf; |
|||
fuse_lowlevel_notify_retrieve; |
|||
fuse_lowlevel_notify_store; |
|||
fuse_reply_data; |
|||
fuse_session_process_buf; |
|||
fuse_session_receive_buf; |
|||
fuse_start_cleanup_thread; |
|||
fuse_stop_cleanup_thread; |
|||
fuse_clean_cache; |
|||
fuse_lowlevel_notify_delete; |
|||
fuse_fs_flock; |
|||
} FUSE_2.8; |
|||
|
|||
FUSE_2.9.1 { |
|||
global: |
|||
fuse_fs_fallocate; |
|||
|
|||
local: |
|||
*; |
|||
} FUSE_2.9; |
|||
@ -1,444 +0,0 @@ |
|||
/* |
|||
libulockmgr: Userspace Lock Manager Library |
|||
Copyright (C) 2006 Miklos Szeredi <miklos@szeredi.hu> |
|||
|
|||
This program can be distributed under the terms of the GNU LGPLv2. |
|||
See the file COPYING.LIB |
|||
*/ |
|||
|
|||
/* #define DEBUG 1 */ |
|||
|
|||
#include "ulockmgr.h" |
|||
#include <stdio.h> |
|||
#include <stdlib.h> |
|||
#include <string.h> |
|||
#include <unistd.h> |
|||
#include <pthread.h> |
|||
#include <errno.h> |
|||
#include <assert.h> |
|||
#include <signal.h> |
|||
#include <sys/stat.h> |
|||
#include <sys/socket.h> |
|||
#include <sys/wait.h> |
|||
|
|||
struct message { |
|||
unsigned intr : 1; |
|||
unsigned nofd : 1; |
|||
pthread_t thr; |
|||
int cmd; |
|||
int fd; |
|||
struct flock lock; |
|||
int error; |
|||
}; |
|||
|
|||
struct fd_store { |
|||
struct fd_store *next; |
|||
int fd; |
|||
int inuse; |
|||
}; |
|||
|
|||
struct owner { |
|||
struct owner *next; |
|||
struct owner *prev; |
|||
struct fd_store *fds; |
|||
void *id; |
|||
size_t id_len; |
|||
int cfd; |
|||
}; |
|||
|
|||
static pthread_mutex_t ulockmgr_lock; |
|||
static int ulockmgr_cfd = -1; |
|||
static struct owner owner_list = { .next = &owner_list, .prev = &owner_list }; |
|||
|
|||
#define MAX_SEND_FDS 2 |
|||
|
|||
static void list_del_owner(struct owner *owner) |
|||
{ |
|||
struct owner *prev = owner->prev; |
|||
struct owner *next = owner->next; |
|||
prev->next = next; |
|||
next->prev = prev; |
|||
} |
|||
|
|||
static void list_add_owner(struct owner *owner, struct owner *next) |
|||
{ |
|||
struct owner *prev = next->prev; |
|||
owner->next = next; |
|||
owner->prev = prev; |
|||
prev->next = owner; |
|||
next->prev = owner; |
|||
} |
|||
|
|||
/* |
|||
* There's a bug in the linux kernel (< 2.6.22) recv() implementation |
|||
* on AF_UNIX, SOCK_STREAM sockets, that could cause it to return |
|||
* zero, even if data was available. Retrying the recv will return |
|||
* the data in this case. |
|||
*/ |
|||
static int do_recv(int sock, void *buf, size_t len, int flags) |
|||
{ |
|||
int res = recv(sock, buf, len, flags); |
|||
if (res == 0) |
|||
res = recv(sock, buf, len, flags); |
|||
|
|||
return res; |
|||
} |
|||
|
|||
static int ulockmgr_send_message(int sock, void *buf, size_t buflen, |
|||
int *fdp, int numfds) |
|||
{ |
|||
struct msghdr msg; |
|||
struct cmsghdr *p_cmsg; |
|||
struct iovec vec; |
|||
size_t cmsgbuf[CMSG_SPACE(sizeof(int) * MAX_SEND_FDS) / sizeof(size_t)]; |
|||
int res; |
|||
|
|||
assert(numfds <= MAX_SEND_FDS); |
|||
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(int) * numfds); |
|||
memcpy(CMSG_DATA(p_cmsg), fdp, sizeof(int) * numfds); |
|||
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; |
|||
vec.iov_base = buf; |
|||
vec.iov_len = buflen; |
|||
res = sendmsg(sock, &msg, MSG_NOSIGNAL); |
|||
if (res == -1) { |
|||
perror("libulockmgr: sendmsg"); |
|||
return -1; |
|||
} |
|||
if ((size_t) res != buflen) { |
|||
fprintf(stderr, "libulockmgr: sendmsg short\n"); |
|||
return -1; |
|||
} |
|||
return 0; |
|||
} |
|||
|
|||
static int ulockmgr_start_daemon(void) |
|||
{ |
|||
int sv[2]; |
|||
int res; |
|||
char tmp[64]; |
|||
|
|||
res = socketpair(AF_UNIX, SOCK_STREAM, 0, sv); |
|||
if (res == -1) { |
|||
perror("libulockmgr: socketpair"); |
|||
return -1; |
|||
} |
|||
snprintf(tmp, sizeof(tmp), "exec ulockmgr_server %i", sv[0]); |
|||
res = system(tmp); |
|||
close(sv[0]); |
|||
if (res == -1 || !WIFEXITED(res) || WEXITSTATUS(res) != 0) { |
|||
close(sv[1]); |
|||
return -1; |
|||
} |
|||
ulockmgr_cfd = sv[1]; |
|||
return 0; |
|||
} |
|||
|
|||
static struct owner *ulockmgr_new_owner(const void *id, size_t id_len) |
|||
{ |
|||
int sv[2]; |
|||
int res; |
|||
char c = 'm'; |
|||
struct owner *o; |
|||
|
|||
if (ulockmgr_cfd == -1 && ulockmgr_start_daemon() == -1) |
|||
return NULL; |
|||
|
|||
o = calloc(1, sizeof(struct owner) + id_len); |
|||
if (!o) { |
|||
fprintf(stderr, "libulockmgr: failed to allocate memory\n"); |
|||
return NULL; |
|||
} |
|||
o->id = o + 1; |
|||
o->id_len = id_len; |
|||
res = socketpair(AF_UNIX, SOCK_STREAM, 0, sv); |
|||
if (res == -1) { |
|||
perror("libulockmgr: socketpair"); |
|||
goto out_free; |
|||
} |
|||
res = ulockmgr_send_message(ulockmgr_cfd, &c, sizeof(c), &sv[0], 1); |
|||
close(sv[0]); |
|||
if (res == -1) { |
|||
close(ulockmgr_cfd); |
|||
ulockmgr_cfd = -1; |
|||
goto out_close; |
|||
} |
|||
|
|||
o->cfd = sv[1]; |
|||
memcpy(o->id, id, id_len); |
|||
list_add_owner(o, &owner_list); |
|||
|
|||
return o; |
|||
|
|||
out_close: |
|||
close(sv[1]); |
|||
out_free: |
|||
free(o); |
|||
return NULL; |
|||
} |
|||
|
|||
static int ulockmgr_send_request(struct message *msg, const void *id, |
|||
size_t id_len) |
|||
{ |
|||
int sv[2]; |
|||
int cfd; |
|||
struct owner *o; |
|||
struct fd_store *f = NULL; |
|||
struct fd_store *newf = NULL; |
|||
struct fd_store **fp; |
|||
int fd = msg->fd; |
|||
int cmd = msg->cmd; |
|||
int res; |
|||
int unlockall = (cmd == F_SETLK && msg->lock.l_type == F_UNLCK && |
|||
msg->lock.l_start == 0 && msg->lock.l_len == 0); |
|||
|
|||
for (o = owner_list.next; o != &owner_list; o = o->next) |
|||
if (o->id_len == id_len && memcmp(o->id, id, id_len) == 0) |
|||
break; |
|||
|
|||
if (o == &owner_list) |
|||
o = NULL; |
|||
|
|||
if (!o && cmd != F_GETLK && msg->lock.l_type != F_UNLCK) |
|||
o = ulockmgr_new_owner(id, id_len); |
|||
|
|||
if (!o) { |
|||
if (cmd == F_GETLK) { |
|||
res = fcntl(msg->fd, F_GETLK, &msg->lock); |
|||
return (res == -1) ? -errno : 0; |
|||
} else if (msg->lock.l_type == F_UNLCK) |
|||
return 0; |
|||
else |
|||
return -ENOLCK; |
|||
} |
|||
|
|||
if (unlockall) |
|||
msg->nofd = 1; |
|||
else { |
|||
for (fp = &o->fds; *fp; fp = &(*fp)->next) { |
|||
f = *fp; |
|||
if (f->fd == fd) { |
|||
msg->nofd = 1; |
|||
break; |
|||
} |
|||
} |
|||
} |
|||
|
|||
if (!msg->nofd) { |
|||
newf = f = calloc(1, sizeof(struct fd_store)); |
|||
if (!f) { |
|||
fprintf(stderr, "libulockmgr: failed to allocate memory\n"); |
|||
return -ENOLCK; |
|||
} |
|||
} |
|||
|
|||
res = socketpair(AF_UNIX, SOCK_STREAM, 0, sv); |
|||
if (res == -1) { |
|||
perror("libulockmgr: socketpair"); |
|||
free(newf); |
|||
return -ENOLCK; |
|||
} |
|||
|
|||
cfd = sv[1]; |
|||
sv[1] = msg->fd; |
|||
res = ulockmgr_send_message(o->cfd, msg, sizeof(struct message), sv, |
|||
msg->nofd ? 1 : 2); |
|||
close(sv[0]); |
|||
if (res == -1) { |
|||
free(newf); |
|||
close(cfd); |
|||
return -EIO; |
|||
} |
|||
|
|||
if (newf) { |
|||
newf->fd = msg->fd; |
|||
newf->next = o->fds; |
|||
o->fds = newf; |
|||
} |
|||
if (f) |
|||
f->inuse++; |
|||
|
|||
res = do_recv(cfd, msg, sizeof(struct message), MSG_WAITALL); |
|||
if (res == -1) { |
|||
perror("libulockmgr: recv"); |
|||
msg->error = EIO; |
|||
} else if (res != sizeof(struct message)) { |
|||
fprintf(stderr, "libulockmgr: recv short\n"); |
|||
msg->error = EIO; |
|||
} else if (cmd == F_SETLKW && msg->error == EAGAIN) { |
|||
pthread_mutex_unlock(&ulockmgr_lock); |
|||
while (1) { |
|||
sigset_t old; |
|||
sigset_t unblock; |
|||
int errno_save; |
|||
|
|||
sigemptyset(&unblock); |
|||
sigaddset(&unblock, SIGUSR1); |
|||
pthread_sigmask(SIG_UNBLOCK, &unblock, &old); |
|||
res = do_recv(cfd, msg, sizeof(struct message), |
|||
MSG_WAITALL); |
|||
errno_save = errno; |
|||
pthread_sigmask(SIG_SETMASK, &old, NULL); |
|||
if (res == sizeof(struct message)) |
|||
break; |
|||
else if (res >= 0) { |
|||
fprintf(stderr, "libulockmgr: recv short\n"); |
|||
msg->error = EIO; |
|||
break; |
|||
} else if (errno_save != EINTR) { |
|||
errno = errno_save; |
|||
perror("libulockmgr: recv"); |
|||
msg->error = EIO; |
|||
break; |
|||
} |
|||
msg->intr = 1; |
|||
res = send(o->cfd, msg, sizeof(struct message), |
|||
MSG_NOSIGNAL); |
|||
if (res == -1) { |
|||
perror("libulockmgr: send"); |
|||
msg->error = EIO; |
|||
break; |
|||
} |
|||
if (res != sizeof(struct message)) { |
|||
fprintf(stderr, "libulockmgr: send short\n"); |
|||
msg->error = EIO; |
|||
break; |
|||
} |
|||
} |
|||
pthread_mutex_lock(&ulockmgr_lock); |
|||
|
|||
} |
|||
if (f) |
|||
f->inuse--; |
|||
close(cfd); |
|||
if (unlockall) { |
|||
for (fp = &o->fds; *fp;) { |
|||
f = *fp; |
|||
if (f->fd == fd && !f->inuse) { |
|||
*fp = f->next; |
|||
free(f); |
|||
} else |
|||
fp = &f->next; |
|||
} |
|||
if (!o->fds) { |
|||
list_del_owner(o); |
|||
close(o->cfd); |
|||
free(o); |
|||
} |
|||
/* Force OK on unlock-all, since it _will_ succeed once the |
|||
owner is deleted */ |
|||
msg->error = 0; |
|||
} |
|||
|
|||
return -msg->error; |
|||
} |
|||
|
|||
#ifdef DEBUG |
|||
static uint32_t owner_hash(const unsigned char *id, size_t id_len) |
|||
{ |
|||
uint32_t h = 0; |
|||
size_t i; |
|||
for (i = 0; i < id_len; i++) |
|||
h = ((h << 8) | (h >> 24)) ^ id[i]; |
|||
|
|||
return h; |
|||
} |
|||
#endif |
|||
|
|||
static int ulockmgr_canonicalize(int fd, struct flock *lock) |
|||
{ |
|||
off_t offset; |
|||
if (lock->l_whence == SEEK_CUR) { |
|||
offset = lseek(fd, 0, SEEK_CUR); |
|||
if (offset == (off_t) -1) |
|||
return -errno; |
|||
} else if (lock->l_whence == SEEK_END) { |
|||
struct stat stbuf; |
|||
int res = fstat(fd, &stbuf); |
|||
if (res == -1) |
|||
return -errno; |
|||
|
|||
offset = stbuf.st_size; |
|||
} else |
|||
offset = 0; |
|||
|
|||
lock->l_whence = SEEK_SET; |
|||
lock->l_start += offset; |
|||
|
|||
if (lock->l_start < 0) |
|||
return -EINVAL; |
|||
|
|||
if (lock->l_len < 0) { |
|||
lock->l_start += lock->l_len; |
|||
if (lock->l_start < 0) |
|||
return -EINVAL; |
|||
lock->l_len = -lock->l_len; |
|||
} |
|||
if (lock->l_len && lock->l_start + lock->l_len - 1 < 0) |
|||
return -EINVAL; |
|||
|
|||
return 0; |
|||
} |
|||
|
|||
int ulockmgr_op(int fd, int cmd, struct flock *lock, const void *owner, |
|||
size_t owner_len) |
|||
{ |
|||
int err; |
|||
struct message msg; |
|||
sigset_t old; |
|||
sigset_t block; |
|||
|
|||
if (cmd != F_GETLK && cmd != F_SETLK && cmd != F_SETLKW) |
|||
return -EINVAL; |
|||
|
|||
if (lock->l_type != F_RDLCK && lock->l_type != F_WRLCK && |
|||
lock->l_type != F_UNLCK) |
|||
return -EINVAL; |
|||
|
|||
if (lock->l_whence != SEEK_SET && lock->l_whence != SEEK_CUR && |
|||
lock->l_whence != SEEK_END) |
|||
return -EINVAL; |
|||
|
|||
#ifdef DEBUG |
|||
fprintf(stderr, "libulockmgr: %i %i %i %lli %lli own: 0x%08x\n", |
|||
cmd, lock->l_type, lock->l_whence, lock->l_start, lock->l_len, |
|||
owner_hash(owner, owner_len)); |
|||
#endif |
|||
|
|||
/* Unlock should never block anyway */ |
|||
if (cmd == F_SETLKW && lock->l_type == F_UNLCK) |
|||
cmd = F_SETLK; |
|||
|
|||
memset(&msg, 0, sizeof(struct message)); |
|||
msg.cmd = cmd; |
|||
msg.fd = fd; |
|||
msg.lock = *lock; |
|||
err = ulockmgr_canonicalize(fd, &msg.lock); |
|||
if (err) |
|||
return err; |
|||
|
|||
sigemptyset(&block); |
|||
sigaddset(&block, SIGUSR1); |
|||
pthread_sigmask(SIG_BLOCK, &block, &old); |
|||
pthread_mutex_lock(&ulockmgr_lock); |
|||
err = ulockmgr_send_request(&msg, owner, owner_len); |
|||
pthread_mutex_unlock(&ulockmgr_lock); |
|||
pthread_sigmask(SIG_SETMASK, &old, NULL); |
|||
if (!err && cmd == F_GETLK) { |
|||
if (msg.lock.l_type == F_UNLCK) |
|||
lock->l_type = F_UNLCK; |
|||
else |
|||
*lock = msg.lock; |
|||
} |
|||
|
|||
return err; |
|||
} |
|||
@ -1,58 +0,0 @@ |
|||
## Process this file with automake to produce Makefile.in
|
|||
|
|||
AM_CPPFLAGS = -D_FILE_OFFSET_BITS=64 |
|||
bin_PROGRAMS = fusermount ulockmgr_server |
|||
noinst_PROGRAMS = mount.fuse |
|||
|
|||
# we re-use mount_util.c from the library, but do want to keep ourself
|
|||
# as stand-alone as possible. in order to make an out-of-source build
|
|||
# possible, we "generate" the file from its original location by
|
|||
# copying it over.
|
|||
fusermount_SOURCES = fusermount.c mount_util.c |
|||
fusermount_CPPFLAGS = -I$(top_srcdir)/lib |
|||
BUILT_SOURCES = mount_util.c |
|||
mount_util.c: $(top_srcdir)/lib/mount_util.c |
|||
@cp $(top_srcdir)/lib/mount_util.c . |
|||
|
|||
mount_fuse_SOURCES = mount.fuse.c |
|||
|
|||
ulockmgr_server_SOURCES = ulockmgr_server.c |
|||
ulockmgr_server_CPPFLAGS = -D_FILE_OFFSET_BITS=64 -D_REENTRANT |
|||
ulockmgr_server_LDFLAGS = -pthread |
|||
|
|||
install-exec-hook: |
|||
-chmod u+s $(DESTDIR)$(bindir)/fusermount |
|||
@if test ! -e $(DESTDIR)/dev/fuse; then \
|
|||
$(MKDIR_P) $(DESTDIR)/dev; \
|
|||
echo "mknod $(DESTDIR)/dev/fuse -m 0666 c 10 229 || true"; \
|
|||
mknod $(DESTDIR)/dev/fuse -m 0666 c 10 229 || true; \
|
|||
fi |
|||
|
|||
EXTRA_DIST = udev.rules init_script |
|||
|
|||
MOUNT_FUSE_PATH = @MOUNT_FUSE_PATH@ |
|||
UDEV_RULES_PATH = @UDEV_RULES_PATH@ |
|||
INIT_D_PATH = @INIT_D_PATH@ |
|||
|
|||
install-exec-local: |
|||
$(MKDIR_P) $(DESTDIR)$(MOUNT_FUSE_PATH) |
|||
$(INSTALL_PROGRAM) $(builddir)/mount.fuse $(DESTDIR)$(MOUNT_FUSE_PATH)/mount.fuse |
|||
$(MKDIR_P) $(DESTDIR)$(INIT_D_PATH) |
|||
$(INSTALL_SCRIPT) $(srcdir)/init_script $(DESTDIR)$(INIT_D_PATH)/fuse |
|||
@if test -x /usr/sbin/update-rc.d; then \
|
|||
echo "/usr/sbin/update-rc.d fuse start 34 S . start 41 0 6 . || true"; \
|
|||
/usr/sbin/update-rc.d fuse start 34 S . start 41 0 6 . || true; \
|
|||
fi |
|||
|
|||
install-data-local: |
|||
$(MKDIR_P) $(DESTDIR)$(UDEV_RULES_PATH) |
|||
$(INSTALL_DATA) $(srcdir)/udev.rules $(DESTDIR)$(UDEV_RULES_PATH)/99-fuse.rules |
|||
|
|||
uninstall-local: |
|||
rm -f $(DESTDIR)$(MOUNT_FUSE_PATH)/mount.fuse |
|||
rm -f $(DESTDIR)$(UDEV_RULES_PATH)/99-fuse.rules |
|||
rm -f $(DESTDIR)$(INIT_D_PATH)/fuse |
|||
@if test -x /usr/sbin/update-rc.d; then \
|
|||
echo "/usr/sbin/update-rc.d fuse remove || true"; \
|
|||
/usr/sbin/update-rc.d fuse remove || true; \
|
|||
fi |
|||
@ -1,89 +0,0 @@ |
|||
#! /bin/sh |
|||
### BEGIN INIT INFO |
|||
# Provides: fuse |
|||
# Required-Start: |
|||
# Should-Start: udev |
|||
# Required-Stop: |
|||
# Default-Start: S |
|||
# Default-Stop: |
|||
# Short-Description: Start and stop fuse. |
|||
# Description: Load the fuse module and mount the fuse control |
|||
# filesystem. |
|||
### END INIT INFO |
|||
|
|||
set -e |
|||
|
|||
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin |
|||
MOUNTPOINT=/sys/fs/fuse/connections |
|||
|
|||
# Gracefully exit if the package has been removed. |
|||
which fusermount &>/dev/null || exit 5 |
|||
|
|||
case "$1" in |
|||
start|restart|force-reload) |
|||
if ! grep -qw fuse /proc/filesystems; then |
|||
echo -n "Loading fuse module" |
|||
if ! modprobe fuse >/dev/null 2>&1; then |
|||
echo " failed!" |
|||
exit 1 |
|||
else |
|||
echo "." |
|||
fi |
|||
else |
|||
echo "Fuse filesystem already available." |
|||
fi |
|||
if grep -qw fusectl /proc/filesystems && \ |
|||
! grep -qw $MOUNTPOINT /proc/mounts; then |
|||
echo -n "Mounting fuse control filesystem" |
|||
if ! mount -t fusectl fusectl $MOUNTPOINT >/dev/null 2>&1; then |
|||
echo " failed!" |
|||
exit 1 |
|||
else |
|||
echo "." |
|||
fi |
|||
else |
|||
echo "Fuse control filesystem already available." |
|||
fi |
|||
;; |
|||
stop) |
|||
if ! grep -qw fuse /proc/filesystems; then |
|||
echo "Fuse filesystem not loaded." |
|||
exit 7 |
|||
fi |
|||
if grep -qw $MOUNTPOINT /proc/mounts; then |
|||
echo -n "Unmounting fuse control filesystem" |
|||
if ! umount $MOUNTPOINT >/dev/null 2>&1; then |
|||
echo " failed!" |
|||
else |
|||
echo "." |
|||
fi |
|||
else |
|||
echo "Fuse control filesystem not mounted." |
|||
fi |
|||
if grep -qw "^fuse" /proc/modules; then |
|||
echo -n "Unloading fuse module" |
|||
if ! rmmod fuse >/dev/null 2>&1; then |
|||
echo " failed!" |
|||
else |
|||
echo "." |
|||
fi |
|||
else |
|||
echo "Fuse module not loaded." |
|||
fi |
|||
;; |
|||
status) |
|||
echo -n "Checking fuse filesystem" |
|||
if ! grep -qw fuse /proc/filesystems; then |
|||
echo " not available." |
|||
exit 3 |
|||
else |
|||
echo " ok." |
|||
fi |
|||
;; |
|||
*) |
|||
echo "Usage: $0 {start|stop|restart|force-reload|status}" |
|||
exit 1 |
|||
;; |
|||
esac |
|||
|
|||
exit 0 |
|||
@ -1 +0,0 @@ |
|||
KERNEL=="fuse", MODE="0666" |
|||
@ -1,425 +0,0 @@ |
|||
/* |
|||
ulockmgr_server: Userspace Lock Manager Server |
|||
Copyright (C) 2006 Miklos Szeredi <miklos@szeredi.hu> |
|||
|
|||
This program can be distributed under the terms of the GNU GPL. |
|||
See the file COPYING. |
|||
*/ |
|||
|
|||
/* #define DEBUG 1 */ |
|||
|
|||
#include <stdio.h> |
|||
#include <stdlib.h> |
|||
#include <string.h> |
|||
#include <unistd.h> |
|||
#include <fcntl.h> |
|||
#include <dirent.h> |
|||
#include <pthread.h> |
|||
#include <stdint.h> |
|||
#include <errno.h> |
|||
#include <assert.h> |
|||
#include <sys/types.h> |
|||
#include <sys/socket.h> |
|||
#include <sys/wait.h> |
|||
|
|||
struct message { |
|||
unsigned intr : 1; |
|||
unsigned nofd : 1; |
|||
pthread_t thr; |
|||
int cmd; |
|||
int fd; |
|||
struct flock lock; |
|||
int error; |
|||
}; |
|||
|
|||
struct fd_store { |
|||
struct fd_store *next; |
|||
int fd; |
|||
int origfd; |
|||
int inuse; |
|||
}; |
|||
|
|||
struct owner { |
|||
struct fd_store *fds; |
|||
pthread_mutex_t lock; |
|||
}; |
|||
|
|||
struct req_data { |
|||
struct owner *o; |
|||
int cfd; |
|||
struct fd_store *f; |
|||
struct message msg; |
|||
}; |
|||
|
|||
#define MAX_SEND_FDS 2 |
|||
|
|||
static int receive_message(int sock, void *buf, size_t buflen, int *fdp, |
|||
int *numfds) |
|||
{ |
|||
struct msghdr msg; |
|||
struct iovec iov; |
|||
size_t ccmsg[CMSG_SPACE(sizeof(int) * MAX_SEND_FDS) / sizeof(size_t)]; |
|||
struct cmsghdr *cmsg; |
|||
int res; |
|||
int i; |
|||
|
|||
assert(*numfds <= MAX_SEND_FDS); |
|||
iov.iov_base = buf; |
|||
iov.iov_len = buflen; |
|||
|
|||
memset(&msg, 0, sizeof(msg)); |
|||
memset(ccmsg, -1, sizeof(ccmsg)); |
|||
msg.msg_iov = &iov; |
|||
msg.msg_iovlen = 1; |
|||
msg.msg_control = ccmsg; |
|||
msg.msg_controllen = sizeof(ccmsg); |
|||
|
|||
res = recvmsg(sock, &msg, MSG_WAITALL); |
|||
if (!res) { |
|||
/* retry on zero return, see do_recv() in ulockmgr.c */ |
|||
res = recvmsg(sock, &msg, MSG_WAITALL); |
|||
if (!res) |
|||
return 0; |
|||
} |
|||
if (res == -1) { |
|||
perror("ulockmgr_server: recvmsg"); |
|||
return -1; |
|||
} |
|||
if ((size_t) res != buflen) { |
|||
fprintf(stderr, "ulockmgr_server: short message received\n"); |
|||
return -1; |
|||
} |
|||
|
|||
cmsg = CMSG_FIRSTHDR(&msg); |
|||
if (cmsg) { |
|||
if (cmsg->cmsg_type != SCM_RIGHTS) { |
|||
fprintf(stderr, |
|||
"ulockmgr_server: unknown control message %d\n", |
|||
cmsg->cmsg_type); |
|||
return -1; |
|||
} |
|||
memcpy(fdp, CMSG_DATA(cmsg), sizeof(int) * *numfds); |
|||
if (msg.msg_flags & MSG_CTRUNC) { |
|||
fprintf(stderr, |
|||
"ulockmgr_server: control message truncated\n"); |
|||
for (i = 0; i < *numfds; i++) |
|||
close(fdp[i]); |
|||
*numfds = 0; |
|||
} |
|||
} else { |
|||
if (msg.msg_flags & MSG_CTRUNC) { |
|||
fprintf(stderr, |
|||
"ulockmgr_server: control message truncated(*)\n"); |
|||
|
|||
/* There's a bug in the Linux kernel, that if |
|||
not all file descriptors were allocated, |
|||
then the cmsg header is not filled in */ |
|||
cmsg = (struct cmsghdr *) ccmsg; |
|||
memcpy(fdp, CMSG_DATA(cmsg), sizeof(int) * *numfds); |
|||
for (i = 0; i < *numfds; i++) |
|||
close(fdp[i]); |
|||
} |
|||
*numfds = 0; |
|||
} |
|||
return res; |
|||
} |
|||
|
|||
static int closefrom(int minfd) |
|||
{ |
|||
DIR *dir = opendir("/proc/self/fd"); |
|||
if (dir) { |
|||
int dfd = dirfd(dir); |
|||
struct dirent *ent; |
|||
while ((ent = readdir(dir))) { |
|||
char *end; |
|||
int fd = strtol(ent->d_name, &end, 10); |
|||
if (ent->d_name[0] && !end[0] && fd >= minfd && |
|||
fd != dfd) |
|||
close(fd); |
|||
} |
|||
closedir(dir); |
|||
} |
|||
return 0; |
|||
} |
|||
|
|||
static void send_reply(int cfd, struct message *msg) |
|||
{ |
|||
int res = send(cfd, msg, sizeof(struct message), MSG_NOSIGNAL); |
|||
if (res == -1) |
|||
perror("ulockmgr_server: sending reply"); |
|||
#ifdef DEBUG |
|||
fprintf(stderr, "ulockmgr_server: error: %i\n", msg->error); |
|||
#endif |
|||
} |
|||
|
|||
static void *process_request(void *d_) |
|||
{ |
|||
struct req_data *d = d_; |
|||
int res; |
|||
|
|||
assert(d->msg.cmd == F_SETLKW); |
|||
res = fcntl(d->f->fd, F_SETLK, &d->msg.lock); |
|||
if (res == -1 && errno == EAGAIN) { |
|||
d->msg.error = EAGAIN; |
|||
d->msg.thr = pthread_self(); |
|||
send_reply(d->cfd, &d->msg); |
|||
res = fcntl(d->f->fd, F_SETLKW, &d->msg.lock); |
|||
} |
|||
d->msg.error = (res == -1) ? errno : 0; |
|||
pthread_mutex_lock(&d->o->lock); |
|||
d->f->inuse--; |
|||
pthread_mutex_unlock(&d->o->lock); |
|||
send_reply(d->cfd, &d->msg); |
|||
close(d->cfd); |
|||
free(d); |
|||
|
|||
return NULL; |
|||
} |
|||
|
|||
static void process_message(struct owner *o, struct message *msg, int cfd, |
|||
int fd) |
|||
{ |
|||
struct fd_store *f = NULL; |
|||
struct fd_store *newf = NULL; |
|||
struct fd_store **fp; |
|||
struct req_data *d; |
|||
pthread_t tid; |
|||
int res; |
|||
|
|||
#ifdef DEBUG |
|||
fprintf(stderr, "ulockmgr_server: %i %i %i %lli %lli\n", |
|||
msg->cmd, msg->lock.l_type, msg->lock.l_whence, |
|||
msg->lock.l_start, msg->lock.l_len); |
|||
#endif |
|||
|
|||
if (msg->cmd == F_SETLK && msg->lock.l_type == F_UNLCK && |
|||
msg->lock.l_start == 0 && msg->lock.l_len == 0) { |
|||
for (fp = &o->fds; *fp;) { |
|||
f = *fp; |
|||
if (f->origfd == msg->fd && !f->inuse) { |
|||
close(f->fd); |
|||
*fp = f->next; |
|||
free(f); |
|||
} else |
|||
fp = &f->next; |
|||
} |
|||
if (!msg->nofd) |
|||
close(fd); |
|||
|
|||
msg->error = 0; |
|||
send_reply(cfd, msg); |
|||
close(cfd); |
|||
return; |
|||
} |
|||
|
|||
if (msg->nofd) { |
|||
for (fp = &o->fds; *fp; fp = &(*fp)->next) { |
|||
f = *fp; |
|||
if (f->origfd == msg->fd) |
|||
break; |
|||
} |
|||
if (!*fp) { |
|||
fprintf(stderr, "ulockmgr_server: fd %i not found\n", |
|||
msg->fd); |
|||
msg->error = EIO; |
|||
send_reply(cfd, msg); |
|||
close(cfd); |
|||
return; |
|||
} |
|||
} else { |
|||
newf = f = malloc(sizeof(struct fd_store)); |
|||
if (!f) { |
|||
msg->error = ENOLCK; |
|||
send_reply(cfd, msg); |
|||
close(cfd); |
|||
return; |
|||
} |
|||
|
|||
f->fd = fd; |
|||
f->origfd = msg->fd; |
|||
f->inuse = 0; |
|||
} |
|||
|
|||
if (msg->cmd == F_GETLK || msg->cmd == F_SETLK || |
|||
msg->lock.l_type == F_UNLCK) { |
|||
res = fcntl(f->fd, msg->cmd, &msg->lock); |
|||
msg->error = (res == -1) ? errno : 0; |
|||
send_reply(cfd, msg); |
|||
close(cfd); |
|||
if (newf) { |
|||
newf->next = o->fds; |
|||
o->fds = newf; |
|||
} |
|||
return; |
|||
} |
|||
|
|||
d = malloc(sizeof(struct req_data)); |
|||
if (!d) { |
|||
msg->error = ENOLCK; |
|||
send_reply(cfd, msg); |
|||
close(cfd); |
|||
free(newf); |
|||
return; |
|||
} |
|||
|
|||
f->inuse++; |
|||
d->o = o; |
|||
d->cfd = cfd; |
|||
d->f = f; |
|||
d->msg = *msg; |
|||
res = pthread_create(&tid, NULL, process_request, d); |
|||
if (res) { |
|||
msg->error = ENOLCK; |
|||
send_reply(cfd, msg); |
|||
close(cfd); |
|||
free(d); |
|||
f->inuse--; |
|||
free(newf); |
|||
return; |
|||
} |
|||
|
|||
if (newf) { |
|||
newf->next = o->fds; |
|||
o->fds = newf; |
|||
} |
|||
pthread_detach(tid); |
|||
} |
|||
|
|||
static void sigusr1_handler(int sig) |
|||
{ |
|||
(void) sig; |
|||
/* Nothing to do */ |
|||
} |
|||
|
|||
static void process_owner(int cfd) |
|||
{ |
|||
struct owner o; |
|||
struct sigaction sa; |
|||
|
|||
memset(&sa, 0, sizeof(struct sigaction)); |
|||
sa.sa_handler = sigusr1_handler; |
|||
sigemptyset(&sa.sa_mask); |
|||
|
|||
if (sigaction(SIGUSR1, &sa, NULL) == -1) { |
|||
perror("ulockmgr_server: cannot set sigusr1 signal handler"); |
|||
exit(1); |
|||
} |
|||
|
|||
memset(&o, 0, sizeof(struct owner)); |
|||
pthread_mutex_init(&o.lock, NULL); |
|||
while (1) { |
|||
struct message msg; |
|||
int rfds[2]; |
|||
int res; |
|||
int numfds = 2; |
|||
|
|||
res = receive_message(cfd, &msg, sizeof(msg), rfds, &numfds); |
|||
if (!res) |
|||
break; |
|||
if (res == -1) |
|||
exit(1); |
|||
|
|||
if (msg.intr) { |
|||
if (numfds != 0) |
|||
fprintf(stderr, |
|||
"ulockmgr_server: too many fds for intr\n"); |
|||
pthread_kill(msg.thr, SIGUSR1); |
|||
} else { |
|||
if (numfds != 2) |
|||
continue; |
|||
|
|||
pthread_mutex_lock(&o.lock); |
|||
process_message(&o, &msg, rfds[0], rfds[1]); |
|||
pthread_mutex_unlock(&o.lock); |
|||
} |
|||
} |
|||
if (o.fds) |
|||
fprintf(stderr, |
|||
"ulockmgr_server: open file descriptors on exit\n"); |
|||
} |
|||
|
|||
int main(int argc, char *argv[]) |
|||
{ |
|||
int nullfd; |
|||
char *end; |
|||
int cfd; |
|||
sigset_t empty; |
|||
|
|||
if (argc != 2 || !argv[1][0]) |
|||
goto out_inval; |
|||
|
|||
cfd = strtol(argv[1], &end, 10); |
|||
if (*end) |
|||
goto out_inval; |
|||
|
|||
/* demonize current process */ |
|||
switch(fork()) { |
|||
case -1: |
|||
perror("ulockmgr_server: fork"); |
|||
exit(1); |
|||
case 0: |
|||
break; |
|||
default: |
|||
_exit(0); |
|||
} |
|||
|
|||
if (setsid() == -1) { |
|||
perror("ulockmgr_server: setsid"); |
|||
exit(1); |
|||
} |
|||
|
|||
(void) chdir("/"); |
|||
|
|||
sigemptyset(&empty); |
|||
sigprocmask(SIG_SETMASK, &empty, NULL); |
|||
|
|||
if (dup2(cfd, 4) == -1) { |
|||
perror("ulockmgr_server: dup2"); |
|||
exit(1); |
|||
} |
|||
cfd = 4; |
|||
nullfd = open("/dev/null", O_RDWR); |
|||
if (nullfd >= 0) { |
|||
dup2(nullfd, 0); |
|||
dup2(nullfd, 1); |
|||
} |
|||
close(3); |
|||
closefrom(5); |
|||
while (1) { |
|||
char c; |
|||
int sock; |
|||
int pid; |
|||
int numfds = 1; |
|||
int res = receive_message(cfd, &c, sizeof(c), &sock, &numfds); |
|||
if (!res) |
|||
break; |
|||
if (res == -1) |
|||
exit(1); |
|||
assert(numfds == 1); |
|||
|
|||
pid = fork(); |
|||
if (pid == -1) { |
|||
perror("ulockmgr_server: fork"); |
|||
close(sock); |
|||
continue; |
|||
} |
|||
if (pid == 0) { |
|||
close(cfd); |
|||
pid = fork(); |
|||
if (pid == -1) { |
|||
perror("ulockmgr_server: fork"); |
|||
_exit(1); |
|||
} |
|||
if (pid == 0) |
|||
process_owner(sock); |
|||
_exit(0); |
|||
} |
|||
waitpid(pid, NULL, 0); |
|||
close(sock); |
|||
} |
|||
return 0; |
|||
|
|||
out_inval: |
|||
fprintf(stderr, "%s should be started by libulockmgr\n", argv[0]); |
|||
return 1; |
|||
} |
|||
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