diff options
Diffstat (limited to 'examples/VFS/netatalk.c')
| -rw-r--r-- | examples/VFS/netatalk.c | 430 |
1 files changed, 0 insertions, 430 deletions
diff --git a/examples/VFS/netatalk.c b/examples/VFS/netatalk.c deleted file mode 100644 index 353be36e6f..0000000000 --- a/examples/VFS/netatalk.c +++ /dev/null @@ -1,430 +0,0 @@ -/* - * 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) -{ - int n; - char *dpath; - struct dirent **namelist; - - if (!path) return; - - n = scandir(path, &namelist, 0, alphasort); - if (n < 0) { - return; - } else { - while (n --) { - if (strcmp(namelist[n]->d_name, ".") == 0 || - strcmp(namelist[n]->d_name, "..") == 0) - continue; - if (!(dpath = talloc_asprintf(ctx, "%s/%s", - path, namelist[n]->d_name))) - continue; - atalk_unlink_file(dpath); - free(namelist[n]); - } - } -} - -/* 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_named("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_named("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_named("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_named("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_named("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")); -} |