+++ /dev/null
-/*
- * AppleTalk VFS module for Samba-3.x
- *
- * Copyright (C) Alexei Kotovich, 2002
- *
- * 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>
-
-#define APPLEDOUBLE ".AppleDouble"
-#define ADOUBLEMODE 0777
-
-/* atalk functions */
-
-static int atalk_build_paths(TALLOC_CTX *ctx, const char *path,
- const char *fname, char **adbl_path, char **orig_path,
- SMB_STRUCT_STAT *adbl_info, SMB_STRUCT_STAT *orig_info);
-
-static int atalk_unlink_file(const char *path);
-
-static struct vfs_ops default_vfs_ops; /* For passthrough operation */
-static struct smb_vfs_handle_struct *atalk_handle;
-
-static int atalk_get_path_ptr(char *path)
-{
- int i = 0;
- int ptr = 0;
-
- for (i = 0; path[i]; i ++) {
- if (path[i] == '/')
- ptr = i;
- /* get out some 'spam';) from win32's file name */
- else if (path[i] == ':') {
- path[i] = '\0';
- break;
- }
- }
-
- return ptr;
-}
-
-static int atalk_build_paths(TALLOC_CTX *ctx, const char *path, const char *fname,
- char **adbl_path, char **orig_path,
- SMB_STRUCT_STAT *adbl_info, SMB_STRUCT_STAT *orig_info)
-{
- int ptr0 = 0;
- int ptr1 = 0;
- char *dname = 0;
- char *name = 0;
-
- if (!ctx || !path || !fname || !adbl_path || !orig_path ||
- !adbl_info || !orig_info)
- return -1;
-#if 0
- DEBUG(3, ("ATALK: PATH: %s[%s]\n", path, fname));
-#endif
- if (strstr(path, APPLEDOUBLE) || strstr(fname, APPLEDOUBLE)) {
- DEBUG(3, ("ATALK: path %s[%s] already contains %s\n", path, fname, APPLEDOUBLE));
- return -1;
- }
-
- if (fname[0] == '.') ptr0 ++;
- if (fname[1] == '/') ptr0 ++;
-
- *orig_path = talloc_asprintf(ctx, "%s/%s", path, &fname[ptr0]);
-
- /* get pointer to last '/' */
- ptr1 = atalk_get_path_ptr(*orig_path);
-
- sys_lstat(*orig_path, orig_info);
-
- if (S_ISDIR(orig_info->st_mode)) {
- *adbl_path = talloc_asprintf(ctx, "%s/%s/%s/",
- path, &fname[ptr0], APPLEDOUBLE);
- } else {
- dname = talloc_strdup(ctx, *orig_path);
- dname[ptr1] = '\0';
- name = *orig_path;
- *adbl_path = talloc_asprintf(ctx, "%s/%s/%s",
- dname, APPLEDOUBLE, &name[ptr1 + 1]);
- }
-#if 0
- DEBUG(3, ("ATALK: DEBUG:\n%s\n%s\n", *orig_path, *adbl_path));
-#endif
- sys_lstat(*adbl_path, adbl_info);
- return 0;
-}
-
-static int atalk_unlink_file(const char *path)
-{
- int ret = 0;
-
- become_root();
- ret = unlink(path);
- unbecome_root();
-
- return ret;
-}
-
-static void atalk_add_to_list(name_compare_entry **list)
-{
- int i, count = 0;
- name_compare_entry *new_list = 0;
- name_compare_entry *cur_list = 0;
-
- cur_list = *list;
-
- if (cur_list) {
- for (i = 0, count = 0; cur_list[i].name; i ++, count ++) {
- if (strstr(cur_list[i].name, APPLEDOUBLE))
- return;
- }
- }
-
- if (!(new_list = calloc(1,
- (count == 0 ? 1 : count + 1) * sizeof(name_compare_entry))))
- return;
-
- for (i = 0; i < count; i ++) {
- new_list[i].name = strdup(cur_list[i].name);
- new_list[i].is_wild = cur_list[i].is_wild;
- }
-
- new_list[i].name = strdup(APPLEDOUBLE);
- new_list[i].is_wild = False;
-
- free_namearray(*list);
-
- *list = new_list;
- new_list = 0;
- cur_list = 0;
-}
-
-static void atalk_rrmdir(TALLOC_CTX *ctx, char *path)
-{
- char *dpath;
- struct dirent *dent = 0;
- DIR *dir;
-
- if (!path) return;
-
- dir = opendir(path);
- if (!dir) return;
-
- while (NULL != (dent = readdir(dir))) {
- if (strcmp(dent->d_name, ".") == 0 ||
- strcmp(dent->d_name, "..") == 0)
- continue;
- if (!(dpath = talloc_asprintf(ctx, "%s/%s",
- path, dent->d_name)))
- continue;
- atalk_unlink_file(dpath);
- }
-
- closedir(dir);
-}
-
-/* Disk operations */
-
-/* Directory operations */
-
-DIR *atalk_opendir(struct connection_struct *conn, const char *fname)
-{
- DIR *ret = 0;
-
- ret = default_vfs_ops.opendir(conn, fname);
-
- /*
- * when we try to perform delete operation upon file which has fork
- * in ./.AppleDouble and this directory wasn't hidden by Samba,
- * MS Windows explorer causes the error: "Cannot find the specified file"
- * There is some workaround to avoid this situation, i.e. if
- * connection has not .AppleDouble entry in either veto or hide
- * list then it would be nice to add one.
- */
-
- atalk_add_to_list(&conn->hide_list);
- atalk_add_to_list(&conn->veto_list);
-
- return ret;
-}
-
-static int atalk_rmdir(struct connection_struct *conn, const char *path)
-{
- BOOL add = False;
- TALLOC_CTX *ctx = 0;
- char *dpath;
-
- if (!conn || !conn->origpath || !path) goto exit_rmdir;
-
- /* due to there is no way to change bDeleteVetoFiles variable
- * from this module, gotta use talloc stuff..
- */
-
- strstr(path, APPLEDOUBLE) ? (add = False) : (add = True);
-
- if (!(ctx = talloc_init("remove_directory")))
- goto exit_rmdir;
-
- if (!(dpath = talloc_asprintf(ctx, "%s/%s%s",
- conn->origpath, path, add ? "/"APPLEDOUBLE : "")))
- goto exit_rmdir;
-
- atalk_rrmdir(ctx, dpath);
-
-exit_rmdir:
- talloc_destroy(ctx);
- return default_vfs_ops.rmdir(conn, path);
-}
-
-/* File operations */
-
-static int atalk_rename(struct connection_struct *conn, const char *old, const char *new)
-{
- int ret = 0;
- char *adbl_path = 0;
- char *orig_path = 0;
- SMB_STRUCT_STAT adbl_info;
- SMB_STRUCT_STAT orig_info;
- TALLOC_CTX *ctx;
-
- ret = default_vfs_ops.rename(conn, old, new);
-
- if (!conn || !old) return ret;
-
- if (!(ctx = talloc_init("rename_file")))
- return ret;
-
- if (atalk_build_paths(ctx, conn->origpath, old, &adbl_path, &orig_path,
- &adbl_info, &orig_info) != 0)
- return ret;
-
- if (S_ISDIR(orig_info.st_mode) || S_ISREG(orig_info.st_mode)) {
- DEBUG(3, ("ATALK: %s has passed..\n", adbl_path));
- goto exit_rename;
- }
-
- atalk_unlink_file(adbl_path);
-
-exit_rename:
- talloc_destroy(ctx);
- return ret;
-}
-
-static int atalk_unlink(struct connection_struct *conn, const char *path)
-{
- int ret = 0, i;
- char *adbl_path = 0;
- char *orig_path = 0;
- SMB_STRUCT_STAT adbl_info;
- SMB_STRUCT_STAT orig_info;
- TALLOC_CTX *ctx;
-
- ret = default_vfs_ops.unlink(conn, path);
-
- if (!conn || !path) return ret;
-
- /* no .AppleDouble sync if veto or hide list is empty,
- * otherwise "Cannot find the specified file" error will be caused
- */
-
- if (!conn->veto_list) return ret;
- if (!conn->hide_list) return ret;
-
- for (i = 0; conn->veto_list[i].name; i ++) {
- if (strstr(conn->veto_list[i].name, APPLEDOUBLE))
- break;
- }
-
- if (!conn->veto_list[i].name) {
- for (i = 0; conn->hide_list[i].name; i ++) {
- if (strstr(conn->hide_list[i].name, APPLEDOUBLE))
- break;
- else {
- DEBUG(3, ("ATALK: %s is not hidden, skipped..\n",
- APPLEDOUBLE));
- return ret;
- }
- }
- }
-
- if (!(ctx = talloc_init("unlink_file")))
- return ret;
-
- if (atalk_build_paths(ctx, conn->origpath, path, &adbl_path, &orig_path,
- &adbl_info, &orig_info) != 0)
- return ret;
-
- if (S_ISDIR(orig_info.st_mode) || S_ISREG(orig_info.st_mode)) {
- DEBUG(3, ("ATALK: %s has passed..\n", adbl_path));
- goto exit_unlink;
- }
-
- atalk_unlink_file(adbl_path);
-
-exit_unlink:
- talloc_destroy(ctx);
- return ret;
-}
-
-static int atalk_chmod(struct connection_struct *conn, const char *path, mode_t mode)
-{
- int ret = 0;
- char *adbl_path = 0;
- char *orig_path = 0;
- SMB_STRUCT_STAT adbl_info;
- SMB_STRUCT_STAT orig_info;
- TALLOC_CTX *ctx;
-
- ret = default_vfs_ops.chmod(conn, path, mode);
-
- if (!conn || !path) return ret;
-
- if (!(ctx = talloc_init("chmod_file")))
- return ret;
-
- if (atalk_build_paths(ctx, conn->origpath, path, &adbl_path, &orig_path,
- &adbl_info, &orig_info) != 0)
- return ret;
-
- if (!S_ISDIR(orig_info.st_mode) && !S_ISREG(orig_info.st_mode)) {
- DEBUG(3, ("ATALK: %s has passed..\n", orig_path));
- goto exit_chmod;
- }
-
- chmod(adbl_path, ADOUBLEMODE);
-
-exit_chmod:
- talloc_destroy(ctx);
- return ret;
-}
-
-static int atalk_chown(struct connection_struct *conn, const char *path, uid_t uid, gid_t gid)
-{
- int ret = 0;
- char *adbl_path = 0;
- char *orig_path = 0;
- SMB_STRUCT_STAT adbl_info;
- SMB_STRUCT_STAT orig_info;
- TALLOC_CTX *ctx;
-
- ret = default_vfs_ops.chown(conn, path, uid, gid);
-
- if (!conn || !path) return ret;
-
- if (!(ctx = talloc_init("chown_file")))
- return ret;
-
- if (atalk_build_paths(ctx, conn->origpath, path, &adbl_path, &orig_path,
- &adbl_info, &orig_info) != 0)
- return ret;
-
- if (!S_ISDIR(orig_info.st_mode) && !S_ISREG(orig_info.st_mode)) {
- DEBUG(3, ("ATALK: %s has passed..\n", orig_path));
- goto exit_chown;
- }
-
- chown(adbl_path, uid, gid);
-
-exit_chown:
- talloc_destroy(ctx);
- return ret;
-}
-
-static vfs_op_tuple atalk_ops[] = {
-
- /* Directory operations */
-
- {atalk_opendir, SMB_VFS_OP_OPENDIR, SMB_VFS_LAYER_TRANSPARENT},
- {atalk_rmdir, SMB_VFS_OP_RMDIR, SMB_VFS_LAYER_TRANSPARENT},
-
- /* File operations */
-
- {atalk_rename, SMB_VFS_OP_RENAME, SMB_VFS_LAYER_TRANSPARENT},
- {atalk_unlink, SMB_VFS_OP_UNLINK, SMB_VFS_LAYER_TRANSPARENT},
- {atalk_chmod, SMB_VFS_OP_CHMOD, SMB_VFS_LAYER_TRANSPARENT},
- {atalk_chown, SMB_VFS_OP_CHOWN, SMB_VFS_LAYER_TRANSPARENT},
-
- /* Finish VFS operations definition */
-
- {NULL, SMB_VFS_OP_NOOP, SMB_VFS_LAYER_NOOP}
-};
-
-/* VFS initialisation function. Return vfs_op_tuple array back to SAMBA. */
-vfs_op_tuple *vfs_init(int *vfs_version, struct vfs_ops *def_vfs_ops,
- struct smb_vfs_handle_struct *vfs_handle)
-{
- *vfs_version = SMB_VFS_INTERFACE_VERSION;
- memcpy(&default_vfs_ops, def_vfs_ops, sizeof(struct vfs_ops));
-
- atalk_handle = vfs_handle;
-
- DEBUG(3, ("ATALK: vfs module loaded\n"));
- return atalk_ops;
-}
-
-/* VFS finalization function. */
-void vfs_done(connection_struct *conn)
-{
- DEBUG(3, ("ATALK: vfs module unloaded\n"));
-}
git.samba.org / samba.git / blobdiff