/* * Skeleton VFS module. Implements passthrough operation of all VFS * calls to disk functions. * * Copyright (C) Tim Potter, 1999-2000 * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include "config.h" #include <stdio.h> #include <sys/stat.h> #ifdef HAVE_UTIME_H #include <utime.h> #endif #ifdef HAVE_DIRENT_H #include <dirent.h> #endif #ifdef HAVE_FCNTL_H #include <fcntl.h> #endif #include <errno.h> #include <string.h> #include <includes.h> #include <vfs.h> extern struct vfs_ops default_vfs_ops; /* For passthrough operation */ extern struct vfs_ops skel_ops; static int skel_connect(struct connection_struct *conn, const char *service, const char *user) { return default_vfs_ops.connect(conn, service, user); } static void skel_disconnect(struct connection_struct *conn) { default_vfs_ops.disconnect(conn); } static SMB_BIG_UINT skel_disk_free(struct connection_struct *conn, const char *path, BOOL small_query, SMB_BIG_UINT *bsize, SMB_BIG_UINT *dfree, SMB_BIG_UINT *dsize) { return default_vfs_ops.disk_free(conn, path, small_query, bsize, dfree, dsize); } static DIR *skel_opendir(struct connection_struct *conn, const char *fname) { return default_vfs_ops.opendir(conn, fname); } static struct dirent *skel_readdir(struct connection_struct *conn, DIR *dirp) { return default_vfs_ops.readdir(conn, dirp); } static int skel_mkdir(struct connection_struct *conn, const char *path, mode_t mode) { return default_vfs_ops.mkdir(conn, path, mode); } static int skel_rmdir(struct connection_struct *conn, const char *path) { return default_vfs_ops.rmdir(conn, path); } static int skel_closedir(struct connection_struct *conn, DIR *dir) { return default_vfs_ops.closedir(conn, dir); } static int skel_open(struct connection_struct *conn, const char *fname, int flags, mode_t mode) { return default_vfs_ops.open(conn, fname, flags, mode); } static int skel_close(struct files_struct *fsp, int fd) { return default_vfs_ops.close(fsp, fd); } static ssize_t skel_read(struct files_struct *fsp, int fd, void *data, size_t n) { return default_vfs_ops.read(fsp, fd, data, n); } static ssize_t skel_write(struct files_struct *fsp, int fd, const void *data, size_t n) { return default_vfs_ops.write(fsp, fd, data, n); } static SMB_OFF_T skel_lseek(struct files_struct *fsp, int filedes, SMB_OFF_T offset, int whence) { return default_vfs_ops.lseek(fsp, filedes, offset, whence); } static int skel_rename(struct connection_struct *conn, const char *old, const char *new) { return default_vfs_ops.rename(conn, old, new); } static int skel_fsync(struct files_struct *fsp, int fd) { return default_vfs_ops.fsync(fsp, fd); } static int skel_stat(struct connection_struct *conn, const char *fname, SMB_STRUCT_STAT *sbuf) { return default_vfs_ops.stat(conn, fname, sbuf); } static int skel_fstat(struct files_struct *fsp, int fd, SMB_STRUCT_STAT *sbuf) { return default_vfs_ops.fstat(fsp, fd, sbuf); } static int skel_lstat(struct connection_struct *conn, const char *path, SMB_STRUCT_STAT *sbuf) { return default_vfs_ops.lstat(conn, path, sbuf); } static int skel_unlink(struct connection_struct *conn, const char *path) { return default_vfs_ops.unlink(conn, path); } static int skel_chmod(struct connection_struct *conn, const char *path, mode_t mode) { return default_vfs_ops.chmod(conn, path, mode); } static int skel_fchmod(struct files_struct *fsp, int fd, mode_t mode) { return default_vfs_ops.fchmod(fsp, fd, mode); } static int skel_chown(struct connection_struct *conn, const char *path, uid_t uid, gid_t gid) { return default_vfs_ops.chown(conn, path, uid, gid); } static int skel_fchown(struct files_struct *fsp, int fd, uid_t uid, gid_t gid) { return default_vfs_ops.fchown(fsp, fd, uid, gid); } static int skel_chdir(struct connection_struct *conn, const char *path) { return default_vfs_ops.chdir(conn, path); } static char *skel_getwd(struct connection_struct *conn, char *buf) { return default_vfs_ops.getwd(conn, buf); } static int skel_utime(struct connection_struct *conn, const char *path, struct utimbuf *times) { return default_vfs_ops.utime(conn, path, times); } static int skel_ftruncate(struct files_struct *fsp, int fd, SMB_OFF_T offset) { return default_vfs_ops.ftruncate(fsp, fd, offset); } static BOOL skel_lock(struct files_struct *fsp, int fd, int op, SMB_OFF_T offset, SMB_OFF_T count, int type) { return default_vfs_ops.lock(fsp, fd, op, offset, count, type); } static BOOL skel_symlink(struct connection_struct *conn, const char *oldpath, const char *newpath) { return default_vfs_ops.symlink(conn, oldpath, newpath); } static BOOL skel_readlink(struct connection_struct *conn, const char *path, char *buf, size_t bufsiz) { return default_vfs_ops.readlink(conn, path, buf, bufsiz); } static int skel_link(struct connection_struct *conn, const char *oldpath, const char *newpath) { return default_vfs_ops.link(conn, oldpath, newpath); } static int skel_mknod(struct connection_struct *conn, const char *path, mode_t mode, SMB_DEV_T dev) { return default_vfs_ops.mknod(conn, path, mode, dev); } static char *skel_realpath(struct connection_struct *conn, const char *path, char *resolved_path) { return default_vfs_ops.realpath(conn, path, resolved_path); } static size_t skel_fget_nt_acl(struct files_struct *fsp, int fd, struct security_descriptor_info **ppdesc) { return default_vfs_ops.fget_nt_acl(fsp, fd, ppdesc); } static size_t skel_get_nt_acl(struct files_struct *fsp, const char *name, struct security_descriptor_info **ppdesc) { return default_vfs_ops.get_nt_acl(fsp, name, ppdesc); } static BOOL skel_fset_nt_acl(struct files_struct *fsp, int fd, uint32 security_info_sent, struct security_descriptor_info *psd) { return default_vfs_ops.fset_nt_acl(fsp, fd, security_info_sent, psd); } static BOOL skel_set_nt_acl(struct files_struct *fsp, const char *name, uint32 security_info_sent, struct security_descriptor_info *psd) { return default_vfs_ops.set_nt_acl(fsp, name, security_info_sent, psd); } static BOOL skel_chmod_acl(struct connection_struct *conn, const char *name, mode_t mode) { return default_vfs_ops.chmod_acl(conn, name, mode); } static BOOL skel_fchmod_acl(struct files_struct *fsp, int fd, mode_t mode) { return default_vfs_ops.fchmod_acl(fsp, fd, mode); } static int skel_sys_acl_get_entry(struct connection_struct *conn, SMB_ACL_T theacl, int entry_id, SMB_ACL_ENTRY_T *entry_p) { return default_vfs_ops.sys_acl_get_entry(conn, theacl, entry_id, entry_p); } static int skel_sys_acl_get_tag_type(struct connection_struct *conn, SMB_ACL_ENTRY_T entry_d, SMB_ACL_TAG_T *tag_type_p) { return default_vfs_ops.sys_acl_get_tag_type(conn, entry_d, tag_type_p); } static int skel_sys_acl_get_permset(struct connection_struct *conn, SMB_ACL_ENTRY_T entry_d, SMB_ACL_PERMSET_T *permset_p) { return default_vfs_ops.sys_acl_get_permset(conn, entry_d, permset_p); } static void *skel_sys_acl_get_qualifier(struct connection_struct *conn, SMB_ACL_ENTRY_T entry_d) { return default_vfs_ops.sys_acl_get_qualifier(conn, entry_d); } static SMB_ACL_T skel_sys_acl_get_file(struct connection_struct *conn, const char *path_p, SMB_ACL_TYPE_T type) { return default_vfs_ops.sys_acl_get_file(conn, path_p, type); } static SMB_ACL_T skel_sys_acl_get_fd(struct files_struct *fsp, int fd) { return default_vfs_ops.sys_acl_get_fd(fsp, fd); } static int skel_sys_acl_clear_perms(struct connection_struct *conn, SMB_ACL_PERMSET_T permset) { return default_vfs_ops.sys_acl_clear_perms(conn, permset); } static int skel_sys_acl_add_perm(struct connection_struct *conn, SMB_ACL_PERMSET_T permset, SMB_ACL_PERM_T perm) { return default_vfs_ops.sys_acl_add_perm(conn, permset, perm); } static char *skel_sys_acl_to_text(struct connection_struct *conn, SMB_ACL_T theacl, ssize_t *plen) { return default_vfs_ops.sys_acl_to_text(conn, theacl, plen); } static SMB_ACL_T skel_sys_acl_init(struct connection_struct *conn, int count) { return default_vfs_ops.sys_acl_init(conn, count); } static int skel_sys_acl_create_entry(struct connection_struct *conn, SMB_ACL_T *pacl, SMB_ACL_ENTRY_T *pentry) { return default_vfs_ops.sys_acl_create_entry(conn, pacl, pentry); } static int skel_sys_acl_set_tag_type(struct connection_struct *conn, SMB_ACL_ENTRY_T entry, SMB_ACL_TAG_T tagtype) { return default_vfs_ops.sys_acl_set_tag_type(conn, entry, tagtype); } static int skel_sys_acl_set_qualifier(struct connection_struct *conn, SMB_ACL_ENTRY_T entry, void *qual) { return default_vfs_ops.sys_acl_set_qualifier(conn, entry, qual); } static int skel_sys_acl_set_permset(struct connection_struct *conn, SMB_ACL_ENTRY_T entry, SMB_ACL_PERMSET_T permset) { return default_vfs_ops.sys_acl_set_permset(conn, entry, permset); } static int skel_sys_acl_valid(struct connection_struct *conn, SMB_ACL_T theacl ) { return default_vfs_ops.sys_acl_valid(conn, theacl ); } static int skel_sys_acl_set_file(struct connection_struct *conn, const char *name, SMB_ACL_TYPE_T acltype, SMB_ACL_T theacl) { return default_vfs_ops.sys_acl_set_file(conn, name, acltype, theacl); } static int skel_sys_acl_set_fd(struct files_struct *fsp, int fd, SMB_ACL_T theacl) { return default_vfs_ops.sys_acl_set_fd(fsp, fd, theacl); } static int skel_sys_acl_delete_def_file(struct connection_struct *conn, const char *path) { return default_vfs_ops.sys_acl_delete_def_file(conn, path); } static int skel_sys_acl_get_perm(struct connection_struct *conn, SMB_ACL_PERMSET_T permset, SMB_ACL_PERM_T perm) { return default_vfs_ops.sys_acl_get_perm(conn, permset, perm); } static int skel_sys_acl_free_text(struct connection_struct *conn, char *text) { return default_vfs_ops.sys_acl_free_text(conn, text); } static int skel_sys_acl_free_acl(struct connection_struct *conn, SMB_ACL_T posix_acl) { return default_vfs_ops.sys_acl_free_acl(conn, posix_acl); } static int skel_sys_acl_free_qualifier(struct connection_struct *conn, void *qualifier, SMB_ACL_TAG_T tagtype) { return default_vfs_ops.sys_acl_free_qualifier(conn, qualifier, tagtype); } /* VFS initialisation - return vfs_ops function pointer structure */ struct vfs_ops *vfs_init(int *vfs_version, struct vfs_ops *def_vfs_ops) { struct vfs_ops tmp_ops; DEBUG(3, ("Initialising default vfs hooks\n")); *vfs_version = SMB_VFS_INTERFACE_VERSION; memcpy(&tmp_ops, def_vfs_ops, sizeof(struct vfs_ops)); tmp_ops.connect = skel_connect; tmp_ops.disconnect = skel_disconnect; tmp_ops.disk_free = skel_disk_free; /* Directory operations */ tmp_ops.opendir = skel_opendir; tmp_ops.readdir = skel_readdir; tmp_ops.mkdir = skel_mkdir; tmp_ops.rmdir = skel_rmdir; tmp_ops.closedir = skel_closedir; /* File operations */ tmp_ops.open = skel_open; tmp_ops.close = skel_close; tmp_ops.read = skel_read; tmp_ops.write = skel_write; tmp_ops.lseek = skel_lseek; tmp_ops.rename = skel_rename; tmp_ops.fsync = skel_fsync; tmp_ops.stat = skel_stat; tmp_ops.fstat = skel_fstat; tmp_ops.lstat = skel_lstat; tmp_ops.unlink = skel_unlink; tmp_ops.chmod = skel_chmod; tmp_ops.fchmod = skel_fchmod; tmp_ops.chown = skel_chown; tmp_ops.fchown = skel_fchown; tmp_ops.chdir = skel_chdir; tmp_ops.getwd = skel_getwd; tmp_ops.utime = skel_utime; tmp_ops.ftruncate = skel_ftruncate; tmp_ops.lock = skel_lock; tmp_ops.symlink = skel_symlink; tmp_ops.readlink = skel_readlink; tmp_ops.link = skel_link; tmp_ops.mknod = skel_mknod; tmp_ops.realpath = skel_realpath; tmp_ops.fget_nt_acl = skel_fget_nt_acl; tmp_ops.get_nt_acl = skel_get_nt_acl; tmp_ops.fset_nt_acl = skel_fset_nt_acl; tmp_ops.set_nt_acl = skel_set_nt_acl; /* POSIX ACL operations. */ tmp_ops.chmod_acl = skel_chmod_acl; tmp_ops.fchmod_acl = skel_fchmod_acl; tmp_ops.sys_acl_get_entry = skel_sys_acl_get_entry; tmp_ops.sys_acl_get_tag_type = skel_sys_acl_get_tag_type; tmp_ops.sys_acl_get_permset = skel_sys_acl_get_permset; tmp_ops.sys_acl_get_qualifier = skel_sys_acl_get_qualifier; tmp_ops.sys_acl_get_file = skel_sys_acl_get_file; tmp_ops.sys_acl_get_fd = skel_sys_acl_get_fd; tmp_ops.sys_acl_clear_perms = skel_sys_acl_clear_perms; tmp_ops.sys_acl_add_perm = skel_sys_acl_add_perm; tmp_ops.sys_acl_to_text = skel_sys_acl_to_text; tmp_ops.sys_acl_init = skel_sys_acl_init; tmp_ops.sys_acl_create_entry = skel_sys_acl_create_entry; tmp_ops.sys_acl_set_tag_type = skel_sys_acl_set_tag_type; tmp_ops.sys_acl_set_qualifier = skel_sys_acl_set_qualifier; tmp_ops.sys_acl_set_permset = skel_sys_acl_set_permset; tmp_ops.sys_acl_valid = skel_sys_acl_valid; tmp_ops.sys_acl_set_file = skel_sys_acl_set_file; tmp_ops.sys_acl_set_fd = skel_sys_acl_set_fd; tmp_ops.sys_acl_delete_def_file = skel_sys_acl_delete_def_file; tmp_ops.sys_acl_get_perm = skel_sys_acl_get_perm; tmp_ops.sys_acl_free_text = skel_sys_acl_free_text; tmp_ops.sys_acl_free_acl = skel_sys_acl_free_acl; tmp_ops.sys_acl_free_qualifier = skel_sys_acl_free_qualifier; memcpy(&skel_ops, &tmp_ops, sizeof(struct vfs_ops)); return &skel_ops; } /* VFS operations structure */ struct vfs_ops skel_ops = { /* Disk operations */ skel_connect, skel_disconnect, skel_disk_free, /* Directory operations */ skel_opendir, skel_readdir, skel_mkdir, skel_rmdir, skel_closedir, /* File operations */ skel_open, skel_close, skel_read, skel_write, skel_lseek, skel_rename, skel_fsync, skel_stat, skel_fstat, skel_lstat, skel_unlink, skel_chmod, skel_fchmod, skel_chown, skel_fchown, skel_chdir, skel_getwd, skel_utime, skel_ftruncate, skel_lock, skel_symlink, skel_readlink, skel_link, skel_mknod, skel_realpath, /* NT File ACL operations */ skel_fget_nt_acl, skel_get_nt_acl, skel_fset_nt_acl, skel_set_nt_acl, /* POSIX ACL operations */ skel_chmod_acl, skel_fchmod_acl, skel_sys_acl_get_entry, skel_sys_acl_get_tag_type, skel_sys_acl_get_permset, skel_sys_acl_get_qualifier, skel_sys_acl_get_file, skel_sys_acl_get_fd, skel_sys_acl_clear_perms, skel_sys_acl_add_perm, skel_sys_acl_to_text, skel_sys_acl_init, skel_sys_acl_create_entry, skel_sys_acl_set_tag_type, skel_sys_acl_set_qualifier, skel_sys_acl_set_permset, skel_sys_acl_valid, skel_sys_acl_set_file, skel_sys_acl_set_fd, skel_sys_acl_delete_def_file, skel_sys_acl_get_perm, skel_sys_acl_free_text, skel_sys_acl_free_acl, skel_sys_acl_free_qualifier };