diff options
Diffstat (limited to 'source3/modules/vfs_cap.c')
| -rw-r--r-- | source3/modules/vfs_cap.c | 453 |
1 files changed, 453 insertions, 0 deletions
diff --git a/source3/modules/vfs_cap.c b/source3/modules/vfs_cap.c new file mode 100644 index 0000000000..a8a7fa487d --- /dev/null +++ b/source3/modules/vfs_cap.c @@ -0,0 +1,453 @@ +/* + * CAP VFS module for Samba 3.x Version 0.3 + * + * Copyright (C) Tim Potter, 1999-2000 + * Copyright (C) Alexander Bokovoy, 2002-2003 + * Copyright (C) Stefan (metze) Metzmacher, 2003 + * Copyright (C) TAKAHASHI Motonobu (monyo), 2003 + * + * 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 "includes.h" + +/* cap functions */ +static char *capencode(char *to, const char *from); +static char *capdecode(char *to, const char *from); + +static SMB_BIG_UINT skel_disk_free(vfs_handle_struct *handle, connection_struct *conn, const char *path, + BOOL small_query, SMB_BIG_UINT *bsize, + SMB_BIG_UINT *dfree, SMB_BIG_UINT *dsize) +{ + pstring cappath; + capencode(cappath, path); + return SMB_VFS_NEXT_DISK_FREE(handle, conn, cappath, small_query, bsize, + dfree, dsize); +} + +static int skel_set_quota(vfs_handle_struct *handle, connection_struct *conn, enum SMB_QUOTA_TYPE qtype, unid_t id, SMB_DISK_QUOTA *dq) +{ + return SMB_VFS_NEXT_SET_QUOTA(handle, conn, qtype, id, dq); +} + +static DIR *cap_opendir(vfs_handle_struct *handle, connection_struct *conn, const char *fname) +{ + pstring capname; + capencode(capname, fname); + return SMB_VFS_NEXT_OPENDIR(handle, conn, capname); +} + +static struct dirent *cap_readdir(vfs_handle_struct *handle, connection_struct *conn, DIR *dirp) +{ + struct dirent *result; + DEBUG(3,("cap: cap_readdir\n")); + result = SMB_VFS_NEXT_READDIR(handle, conn, dirp); + if (result) { + DEBUG(3,("cap: cap_readdir: %s\n", result->d_name)); + capdecode(result->d_name, result->d_name); + } + return result; +} + +static int cap_mkdir(vfs_handle_struct *handle, connection_struct *conn, const char *path, mode_t mode) +{ + pstring cappath; + capencode(cappath, path); + return SMB_VFS_NEXT_MKDIR(handle, conn, cappath, mode); +} + +static int cap_rmdir(vfs_handle_struct *handle, connection_struct *conn, const char *path) +{ + pstring cappath; + capencode(cappath, path); + return SMB_VFS_NEXT_RMDIR(handle, conn, cappath); +} + +static int cap_open(vfs_handle_struct *handle, connection_struct *conn, const char *fname, int flags, mode_t mode) +{ + pstring capname; + DEBUG(3,("cap: cap_open for %s\n", fname)); + capencode(capname, fname); + return SMB_VFS_NEXT_OPEN(handle, conn, capname, flags, mode); +} + +static int cap_rename(vfs_handle_struct *handle, connection_struct *conn, const char *old, const char *new) +{ + pstring capold, capnew; + capencode(capold, old); + capencode(capnew, new); + + return SMB_VFS_NEXT_RENAME(handle, conn, capold, capnew); +} + +static int cap_stat(vfs_handle_struct *handle, connection_struct *conn, const char *fname, SMB_STRUCT_STAT *sbuf) +{ + pstring capname; + capencode(capname, fname); + return SMB_VFS_NEXT_STAT(handle, conn, capname, sbuf); +} + +static int skel_lstat(vfs_handle_struct *handle, connection_struct *conn, const char *path, SMB_STRUCT_STAT *sbuf) +{ + pstring cappath; + capencode(cappath, path); + return SMB_VFS_NEXT_LSTAT(handle, conn, cappath, sbuf); +} + +static int skel_unlink(vfs_handle_struct *handle, connection_struct *conn, const char *path) +{ + pstring cappath; + capencode(cappath, path); + return SMB_VFS_NEXT_UNLINK(handle, conn, cappath); +} + +static int cap_chmod(vfs_handle_struct *handle, connection_struct *conn, const char *path, mode_t mode) +{ + pstring cappath; + capencode(cappath, path); + return SMB_VFS_NEXT_CHMOD(handle, conn, cappath, mode); +} + +static int cap_chown(vfs_handle_struct *handle, connection_struct *conn, const char *path, uid_t uid, gid_t gid) +{ + pstring cappath; + capencode(cappath, path); + return SMB_VFS_NEXT_CHOWN(handle, conn, cappath, uid, gid); +} + +static int cap_chdir(vfs_handle_struct *handle, connection_struct *conn, const char *path) +{ + pstring cappath; + DEBUG(3,("cap: cap_chdir for %s\n", path)); + capencode(cappath, path); + return SMB_VFS_NEXT_CHDIR(handle, conn, cappath); +} + +static int skel_utime(vfs_handle_struct *handle, connection_struct *conn, const char *path, struct utimbuf *times) +{ + pstring cappath; + capencode(cappath, path); + return SMB_VFS_NEXT_UTIME(handle, conn, cappath, times); +} + + +static BOOL skel_symlink(vfs_handle_struct *handle, connection_struct *conn, const char *oldpath, const char *newpath) +{ + pstring capoldpath, capnewpath; + capencode(capoldpath, oldpath); + capencode(capnewpath, newpath); + return SMB_VFS_NEXT_SYMLINK(handle, conn, capoldpath, capnewpath); +} + +static BOOL skel_readlink(vfs_handle_struct *handle, connection_struct *conn, const char *path, char *buf, size_t bufsiz) +{ + pstring cappath; + capencode(cappath, path); + return SMB_VFS_NEXT_READLINK(handle, conn, cappath, buf, bufsiz); +} + +static int skel_link(vfs_handle_struct *handle, connection_struct *conn, const char *oldpath, const char *newpath) +{ + pstring capoldpath, capnewpath; + capencode(capoldpath, oldpath); + capencode(capnewpath, newpath); + return SMB_VFS_NEXT_LINK(handle, conn, capoldpath, capnewpath); +} + +static int skel_mknod(vfs_handle_struct *handle, connection_struct *conn, const char *path, mode_t mode, SMB_DEV_T dev) +{ + pstring cappath; + capencode(cappath, path); + return SMB_VFS_NEXT_MKNOD(handle, conn, cappath, mode, dev); +} + +static char *skel_realpath(vfs_handle_struct *handle, connection_struct *conn, const char *path, char *resolved_path) +{ + /* monyo need capencode'ed and capdecode'ed? */ + pstring cappath; + capencode(cappath, path); + return SMB_VFS_NEXT_REALPATH(handle, conn, path, resolved_path); +} + +static BOOL skel_set_nt_acl(vfs_handle_struct *handle, files_struct *fsp, const char *name, uint32 security_info_sent, struct security_descriptor_info *psd) +{ + pstring capname; + capencode(capname, name); + return SMB_VFS_NEXT_SET_NT_ACL(handle, fsp, capname, security_info_sent, psd); +} + +static int skel_chmod_acl(vfs_handle_struct *handle, connection_struct *conn, const char *name, mode_t mode) +{ + pstring capname; + capencode(capname, name); + + /* If the underlying VFS doesn't have ACL support... */ + if (!handle->vfs_next.ops.chmod_acl) { + errno = ENOSYS; + return -1; + } + return SMB_VFS_NEXT_CHMOD_ACL(handle, conn, capname, mode); +} + +static SMB_ACL_T skel_sys_acl_get_file(vfs_handle_struct *handle, connection_struct *conn, const char *path_p, SMB_ACL_TYPE_T type) +{ + pstring cappath_p; + capencode(cappath_p, path_p); + return SMB_VFS_NEXT_SYS_ACL_GET_FILE(handle, conn, cappath_p, type); +} + +static int skel_sys_acl_set_file(vfs_handle_struct *handle, connection_struct *conn, const char *name, SMB_ACL_TYPE_T acltype, SMB_ACL_T theacl) +{ + pstring capname; + capencode(capname, name); + return SMB_VFS_NEXT_SYS_ACL_SET_FILE(handle, conn, capname, acltype, theacl); +} + +static int skel_sys_acl_delete_def_file(vfs_handle_struct *handle, connection_struct *conn, const char *path) +{ + pstring cappath; + capencode(cappath, path); + return SMB_VFS_NEXT_SYS_ACL_DELETE_DEF_FILE(handle, conn, cappath); +} + +static ssize_t skel_getxattr(vfs_handle_struct *handle, struct connection_struct *conn,const char *path, const char *name, void *value, size_t size) +{ + pstring cappath, capname; + capencode(cappath, path); + capencode(capname, name); + return SMB_VFS_NEXT_GETXATTR(handle, conn, cappath, capname, value, size); +} + +static ssize_t skel_lgetxattr(vfs_handle_struct *handle, struct connection_struct *conn,const char *path, const char *name, void *value, size_t +size) +{ + pstring cappath, capname; + capencode(cappath, path); + capencode(capname, name); + return SMB_VFS_NEXT_LGETXATTR(handle, conn, cappath, capname, value, size); +} + +static ssize_t skel_fgetxattr(vfs_handle_struct *handle, struct files_struct *fsp,int fd, const char *name, void *value, size_t size) +{ + pstring capname; + capencode(capname, name); + return SMB_VFS_NEXT_FGETXATTR(handle, fsp, fd, capname, value, size); +} + +static ssize_t skel_listxattr(vfs_handle_struct *handle, struct connection_struct *conn,const char *path, char *list, size_t size) +{ + pstring cappath; + capencode(cappath, path); + return SMB_VFS_NEXT_LISTXATTR(handle, conn, cappath, list, size); +} + +static ssize_t skel_llistxattr(vfs_handle_struct *handle, struct connection_struct *conn,const char *path, char *list, size_t size) +{ + pstring cappath; + capencode(cappath, path); + return SMB_VFS_NEXT_LLISTXATTR(handle, conn, cappath, list, size); +} + +static int skel_removexattr(vfs_handle_struct *handle, struct connection_struct *conn,const char *path, const char *name) +{ + pstring cappath, capname; + capencode(cappath, path); + capencode(capname, name); + return SMB_VFS_NEXT_REMOVEXATTR(handle, conn, cappath, capname); +} + +static int skel_lremovexattr(vfs_handle_struct *handle, struct connection_struct *conn,const char *path, const char *name) +{ + pstring cappath, capname; + capencode(cappath, path); + capencode(capname, name); + return SMB_VFS_NEXT_LREMOVEXATTR(handle, conn, cappath, capname); +} + +static int skel_fremovexattr(vfs_handle_struct *handle, struct files_struct *fsp,int fd, const char *name) +{ + pstring capname; + capencode(capname, name); + return SMB_VFS_NEXT_FREMOVEXATTR(handle, fsp, fd, capname); +} + +static int skel_setxattr(vfs_handle_struct *handle, struct connection_struct *conn,const char *path, const char *name, const void *value, size_t size, int flags) +{ + pstring cappath, capname; + capencode(cappath, path); + capencode(capname, name); + return SMB_VFS_NEXT_SETXATTR(handle, conn, cappath, capname, value, size, flags); +} + +static int skel_lsetxattr(vfs_handle_struct *handle, struct connection_struct *conn,const char *path, const char *name, const void *value, size_t size, int flags) +{ + pstring cappath, capname; + capencode(cappath, path); + capencode(capname, name); + return SMB_VFS_NEXT_LSETXATTR(handle, conn, cappath, capname, value, size, flags); +} + +static int skel_fsetxattr(vfs_handle_struct *handle, struct files_struct *fsp,int fd, const char *name, const void *value, size_t size, int flags) +{ + pstring capname; + capencode(capname, name); + return SMB_VFS_NEXT_FSETXATTR(handle, fsp, fd, capname, value, size, flags); +} + +/* VFS operations structure */ + +static vfs_op_tuple cap_op_tuples[] = { + + /* Disk operations */ + + {SMB_VFS_OP(skel_disk_free), SMB_VFS_OP_DISK_FREE, SMB_VFS_LAYER_TRANSPARENT}, + + /* Directory operations */ + + {SMB_VFS_OP(cap_opendir), SMB_VFS_OP_OPENDIR, SMB_VFS_LAYER_TRANSPARENT}, + {SMB_VFS_OP(cap_readdir), SMB_VFS_OP_READDIR, SMB_VFS_LAYER_TRANSPARENT}, + {SMB_VFS_OP(cap_mkdir), SMB_VFS_OP_MKDIR, SMB_VFS_LAYER_TRANSPARENT}, + {SMB_VFS_OP(cap_rmdir), SMB_VFS_OP_RMDIR, SMB_VFS_LAYER_TRANSPARENT}, + + /* File operations */ + + {SMB_VFS_OP(cap_open), SMB_VFS_OP_OPEN, SMB_VFS_LAYER_TRANSPARENT}, + {SMB_VFS_OP(cap_rename), SMB_VFS_OP_RENAME, SMB_VFS_LAYER_TRANSPARENT}, + {SMB_VFS_OP(cap_stat), SMB_VFS_OP_STAT, SMB_VFS_LAYER_TRANSPARENT}, + {SMB_VFS_OP(skel_lstat), SMB_VFS_OP_LSTAT, SMB_VFS_LAYER_TRANSPARENT}, + {SMB_VFS_OP(skel_unlink), SMB_VFS_OP_UNLINK, SMB_VFS_LAYER_TRANSPARENT}, + {SMB_VFS_OP(cap_chmod), SMB_VFS_OP_CHMOD, SMB_VFS_LAYER_TRANSPARENT}, + {SMB_VFS_OP(cap_chown), SMB_VFS_OP_CHOWN, SMB_VFS_LAYER_TRANSPARENT}, + {SMB_VFS_OP(cap_chdir), SMB_VFS_OP_CHDIR, SMB_VFS_LAYER_TRANSPARENT}, + {SMB_VFS_OP(skel_utime), SMB_VFS_OP_UTIME, SMB_VFS_LAYER_TRANSPARENT}, + {SMB_VFS_OP(skel_symlink), SMB_VFS_OP_SYMLINK, SMB_VFS_LAYER_TRANSPARENT}, + {SMB_VFS_OP(skel_readlink), SMB_VFS_OP_READLINK, SMB_VFS_LAYER_TRANSPARENT}, + {SMB_VFS_OP(skel_link), SMB_VFS_OP_LINK, SMB_VFS_LAYER_TRANSPARENT}, + {SMB_VFS_OP(skel_mknod), SMB_VFS_OP_MKNOD, SMB_VFS_LAYER_TRANSPARENT}, + {SMB_VFS_OP(skel_realpath), SMB_VFS_OP_REALPATH, SMB_VFS_LAYER_TRANSPARENT}, + + /* NT File ACL operations */ + + {SMB_VFS_OP(skel_set_nt_acl), SMB_VFS_OP_SET_NT_ACL, SMB_VFS_LAYER_TRANSPARENT}, + + /* POSIX ACL operations */ + + {SMB_VFS_OP(skel_chmod_acl), SMB_VFS_OP_CHMOD_ACL, SMB_VFS_LAYER_TRANSPARENT}, + + {SMB_VFS_OP(skel_sys_acl_get_file), SMB_VFS_OP_SYS_ACL_GET_FILE, SMB_VFS_LAYER_TRANSPARENT}, + {SMB_VFS_OP(skel_sys_acl_set_file), SMB_VFS_OP_SYS_ACL_SET_FILE, SMB_VFS_LAYER_TRANSPARENT}, + {SMB_VFS_OP(skel_sys_acl_delete_def_file), SMB_VFS_OP_SYS_ACL_DELETE_DEF_FILE, SMB_VFS_LAYER_TRANSPARENT}, + + /* EA operations. */ + {SMB_VFS_OP(skel_getxattr), SMB_VFS_OP_GETXATTR, SMB_VFS_LAYER_TRANSPARENT}, + {SMB_VFS_OP(skel_lgetxattr), SMB_VFS_OP_LGETXATTR, SMB_VFS_LAYER_TRANSPARENT}, + {SMB_VFS_OP(skel_fgetxattr), SMB_VFS_OP_FGETXATTR, SMB_VFS_LAYER_TRANSPARENT}, + {SMB_VFS_OP(skel_listxattr), SMB_VFS_OP_LISTXATTR, SMB_VFS_LAYER_TRANSPARENT}, + {SMB_VFS_OP(skel_llistxattr), SMB_VFS_OP_LLISTXATTR, SMB_VFS_LAYER_TRANSPARENT}, + {SMB_VFS_OP(skel_removexattr), SMB_VFS_OP_REMOVEXATTR, SMB_VFS_LAYER_TRANSPARENT}, + {SMB_VFS_OP(skel_lremovexattr), SMB_VFS_OP_LREMOVEXATTR, SMB_VFS_LAYER_TRANSPARENT}, + {SMB_VFS_OP(skel_fremovexattr), SMB_VFS_OP_FREMOVEXATTR, SMB_VFS_LAYER_TRANSPARENT}, + {SMB_VFS_OP(skel_setxattr), SMB_VFS_OP_SETXATTR, SMB_VFS_LAYER_TRANSPARENT}, + {SMB_VFS_OP(skel_lsetxattr), SMB_VFS_OP_LSETXATTR, SMB_VFS_LAYER_TRANSPARENT}, + {SMB_VFS_OP(skel_fsetxattr), SMB_VFS_OP_FSETXATTR, SMB_VFS_LAYER_TRANSPARENT}, + + {NULL, SMB_VFS_OP_NOOP, SMB_VFS_LAYER_NOOP} +}; + +NTSTATUS vfs_cap_init(void) +{ + return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "cap", cap_op_tuples); +} + +/* For CAP functions */ +#define hex_tag ':' +#define hex2bin(c) hex2bin_table[(unsigned char)(c)] +#define bin2hex(c) bin2hex_table[(unsigned char)(c)] +#define is_hex(s) ((s)[0] == hex_tag) + +static unsigned char hex2bin_table[256] = { +0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x00 */ +0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x10 */ +0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x20 */ +0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 0, 0, 0, 0, 0, /* 0x30 */ +0000, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0000, /* 0x40 */ +0000, 0000, 0000, 0000, 0000, 0000, 0000, 0000, +0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x50 */ +0000, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0000, /* 0x60 */ +0000, 0000, 0000, 0000, 0000, 0000, 0000, 0000, +0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x70 */ +0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x80 */ +0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x90 */ +0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xa0 */ +0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xb0 */ +0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xc0 */ +0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xd0 */ +0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xe0 */ +0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 /* 0xf0 */ +}; +static unsigned char bin2hex_table[256] = "0123456789abcdef"; + +/******************************************************************* + original code -> ":xx" - CAP format +********************************************************************/ +static char *capencode(char *to, const char *from) +{ + pstring cvtbuf; + char *out; + + if (to == from) { + from = pstrcpy ((char *) cvtbuf, from); + } + + for (out = to; *from && (out - to < sizeof(pstring)-7);) { + /* buffer husoku error */ + if ((unsigned char)*from >= 0x80) { + *out++ = hex_tag; + *out++ = bin2hex (((*from)>>4)&0x0f); + *out++ = bin2hex ((*from)&0x0f); + from++; + } + else { + *out++ = *from++; + } + } + *out = '\0'; + return to; +} + +/******************************************************************* + CAP -> original code +********************************************************************/ +/* ":xx" -> a byte */ +static char *capdecode(char *to, const char *from) +{ + pstring cvtbuf; + char *out; + + if (to == from) { + from = pstrcpy ((char *) cvtbuf, from); + } + for (out = to; *from && (out - to < sizeof(pstring)-3);) { + if (is_hex(from)) { + *out++ = (hex2bin (from[1])<<4) | (hex2bin (from[2])); + from += 3; + } else { + *out++ = *from++; + } + } + *out = '\0'; + return to; +} |