/* Unix SMB/Netbios implementation. SMB client library implementation Copyright (C) Andrew Tridgell 1998 Copyright (C) Richard Sharpe 2000, 2002 Copyright (C) John Terpstra 2000 Copyright (C) Tom Jansen (Ninja ISD) 2002 Copyright (C) Derrell Lipman 2003-2008 Copyright (C) Jeremy Allison 2007, 2008 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 3 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, see <http://www.gnu.org/licenses/>. */ #include "includes.h" #include "libsmbclient.h" #include "libsmb_internal.h" /* * Generate an inode number from file name for those things that need it */ static ino_t generate_inode(SMBCCTX *context, const char *name) { if (!context || !context->internal->initialized) { errno = EINVAL; return -1; } if (!*name) return 2; /* FIXME, why 2 ??? */ return (ino_t)str_checksum(name); } /* * Routine to put basic stat info into a stat structure ... Used by stat and * fstat below. */ static int setup_stat(SMBCCTX *context, struct stat *st, char *fname, SMB_OFF_T size, int mode) { TALLOC_CTX *frame = talloc_stackframe(); st->st_mode = 0; if (IS_DOS_DIR(mode)) { st->st_mode = SMBC_DIR_MODE; } else { st->st_mode = SMBC_FILE_MODE; } if (IS_DOS_ARCHIVE(mode)) st->st_mode |= S_IXUSR; if (IS_DOS_SYSTEM(mode)) st->st_mode |= S_IXGRP; if (IS_DOS_HIDDEN(mode)) st->st_mode |= S_IXOTH; if (!IS_DOS_READONLY(mode)) st->st_mode |= S_IWUSR; st->st_size = size; #ifdef HAVE_STAT_ST_BLKSIZE st->st_blksize = 512; #endif #ifdef HAVE_STAT_ST_BLOCKS st->st_blocks = (size+511)/512; #endif #ifdef HAVE_STRUCT_STAT_ST_RDEV st->st_rdev = 0; #endif st->st_uid = getuid(); st->st_gid = getgid(); if (IS_DOS_DIR(mode)) { st->st_nlink = 2; } else { st->st_nlink = 1; } if (st->st_ino == 0) { st->st_ino = generate_inode(context, fname); } TALLOC_FREE(frame); return True; /* FIXME: Is this needed ? */ } /* * Routine to stat a file given a name */ int SMBC_stat_ctx(SMBCCTX *context, const char *fname, struct stat *st) { SMBCSRV *srv = NULL; char *server = NULL; char *share = NULL; char *user = NULL; char *password = NULL; char *workgroup = NULL; char *path = NULL; struct timespec write_time_ts; struct timespec access_time_ts; struct timespec change_time_ts; SMB_OFF_T size = 0; uint16 mode = 0; SMB_INO_T ino = 0; TALLOC_CTX *frame = talloc_stackframe(); if (!context || !context->internal->initialized) { errno = EINVAL; /* Best I can think of ... */ TALLOC_FREE(frame); return -1; } if (!fname) { errno = EINVAL; TALLOC_FREE(frame); return -1; } DEBUG(4, ("smbc_stat(%s)\n", fname)); if (SMBC_parse_path(frame, context, fname, &workgroup, &server, &share, &path, &user, &password, NULL)) { errno = EINVAL; TALLOC_FREE(frame); return -1; } if (!user || user[0] == (char)0) { user = talloc_strdup(frame, smbc_getUser(context)); if (!user) { errno = ENOMEM; TALLOC_FREE(frame); return -1; } } srv = SMBC_server(frame, context, True, server, share, &workgroup, &user, &password); if (!srv) { TALLOC_FREE(frame); return -1; /* errno set by SMBC_server */ } if (!SMBC_getatr(context, srv, path, &mode, &size, NULL, &access_time_ts, &write_time_ts, &change_time_ts, &ino)) { errno = SMBC_errno(context, srv->cli); TALLOC_FREE(frame); return -1; } st->st_ino = ino; setup_stat(context, st, (char *) fname, size, mode); st->st_atime = convert_timespec_to_time_t(access_time_ts); st->st_ctime = convert_timespec_to_time_t(change_time_ts); st->st_mtime = convert_timespec_to_time_t(write_time_ts); st->st_dev = srv->dev; TALLOC_FREE(frame); return 0; } /* * Routine to stat a file given an fd */ int SMBC_fstat_ctx(SMBCCTX *context, SMBCFILE *file, struct stat *st) { struct timespec change_time_ts; struct timespec access_time_ts; struct timespec write_time_ts; SMB_OFF_T size; uint16 mode; char *server = NULL; char *share = NULL; char *user = NULL; char *password = NULL; char *path = NULL; char *targetpath = NULL; struct cli_state *targetcli = NULL; SMB_INO_T ino = 0; TALLOC_CTX *frame = talloc_stackframe(); if (!context || !context->internal->initialized) { errno = EINVAL; TALLOC_FREE(frame); return -1; } if (!file || !SMBC_dlist_contains(context->internal->files, file)) { errno = EBADF; TALLOC_FREE(frame); return -1; } if (!file->file) { TALLOC_FREE(frame); return smbc_getFunctionFstatdir(context)(context, file, st); } /*d_printf(">>>fstat: parsing %s\n", file->fname);*/ if (SMBC_parse_path(frame, context, file->fname, NULL, &server, &share, &path, &user, &password, NULL)) { errno = EINVAL; TALLOC_FREE(frame); return -1; } /*d_printf(">>>fstat: resolving %s\n", path);*/ if (!cli_resolve_path(frame, "", context->internal->auth_info, file->srv->cli, path, &targetcli, &targetpath)) { d_printf("Could not resolve %s\n", path); errno = ENOENT; TALLOC_FREE(frame); return -1; } /*d_printf(">>>fstat: resolved path as %s\n", targetpath);*/ if (!NT_STATUS_IS_OK(cli_qfileinfo_basic( targetcli, file->cli_fd, &mode, &size, NULL, &access_time_ts, &write_time_ts, &change_time_ts, &ino))) { time_t change_time, access_time, write_time; if (!NT_STATUS_IS_OK(cli_getattrE(targetcli, file->cli_fd, &mode, &size, &change_time, &access_time, &write_time))) { errno = EINVAL; TALLOC_FREE(frame); return -1; } change_time_ts = convert_time_t_to_timespec(change_time); access_time_ts = convert_time_t_to_timespec(access_time); write_time_ts = convert_time_t_to_timespec(write_time); } st->st_ino = ino; setup_stat(context, st, file->fname, size, mode); st->st_atime = convert_timespec_to_time_t(access_time_ts); st->st_ctime = convert_timespec_to_time_t(change_time_ts); st->st_mtime = convert_timespec_to_time_t(write_time_ts); st->st_dev = file->srv->dev; TALLOC_FREE(frame); return 0; } /* * Routine to obtain file system information given a path */ int SMBC_statvfs_ctx(SMBCCTX *context, char *path, struct statvfs *st) { int ret; bool bIsDir; struct stat statbuf; SMBCFILE * pFile; /* Determine if the provided path is a file or a folder */ if (SMBC_stat_ctx(context, path, &statbuf) < 0) { return -1; } /* Is it a file or a directory? */ if (S_ISDIR(statbuf.st_mode)) { /* It's a directory. */ if ((pFile = SMBC_opendir_ctx(context, path)) == NULL) { return -1; } bIsDir = true; } else if (S_ISREG(statbuf.st_mode)) { /* It's a file. */ if ((pFile = SMBC_open_ctx(context, path, O_RDONLY, 0)) == NULL) { return -1; } bIsDir = false; } else { /* It's neither a file nor a directory. Not supported. */ errno = ENOSYS; return -1; } /* Now we have an open file handle, so just use SMBC_fstatvfs */ ret = SMBC_fstatvfs_ctx(context, pFile, st); /* Close the file or directory */ if (bIsDir) { SMBC_closedir_ctx(context, pFile); } else { SMBC_close_ctx(context, pFile); } return ret; } /* * Routine to obtain file system information given an fd */ int SMBC_fstatvfs_ctx(SMBCCTX *context, SMBCFILE *file, struct statvfs *st) { unsigned long flags = 0; uint32 fs_attrs = 0; struct cli_state *cli = file->srv->cli; /* Initialize all fields (at least until we actually use them) */ memset(st, 0, sizeof(*st)); /* * The state of each flag is such that the same bits are unset as * would typically be unset on a local file system on a POSIX OS. Thus * the bit is on, for example, only for case-insensitive file systems * since most POSIX file systems are case sensitive and fstatvfs() * would typically return zero in these bits on such a local file * system. */ /* See if the server has UNIX CIFS support */ if (! SERVER_HAS_UNIX_CIFS(cli)) { uint64_t total_allocation_units; uint64_t caller_allocation_units; uint64_t actual_allocation_units; uint64_t sectors_per_allocation_unit; uint64_t bytes_per_sector; NTSTATUS status; /* Nope. If size data is available... */ status = cli_get_fs_full_size_info(cli, &total_allocation_units, &caller_allocation_units, &actual_allocation_units, §ors_per_allocation_unit, &bytes_per_sector); if (NT_STATUS_IS_OK(status)) { /* ... then provide it */ st->f_bsize = (unsigned long) bytes_per_sector; #if HAVE_FRSIZE st->f_frsize = (unsigned long) sectors_per_allocation_unit; #endif st->f_blocks = (fsblkcnt_t) total_allocation_units; st->f_bfree = (fsblkcnt_t) actual_allocation_units; } flags |= SMBC_VFS_FEATURE_NO_UNIXCIFS; } else { uint32 optimal_transfer_size; uint32 block_size; uint64_t total_blocks; uint64_t blocks_available; uint64_t user_blocks_available; uint64_t total_file_nodes; uint64_t free_file_nodes; uint64_t fs_identifier; NTSTATUS status; /* Has UNIXCIFS. If POSIX filesystem info is available... */ status = cli_get_posix_fs_info(cli, &optimal_transfer_size, &block_size, &total_blocks, &blocks_available, &user_blocks_available, &total_file_nodes, &free_file_nodes, &fs_identifier); if (NT_STATUS_IS_OK(status)) { /* ... then what's provided here takes precedence. */ st->f_bsize = (unsigned long) block_size; st->f_blocks = (fsblkcnt_t) total_blocks; st->f_bfree = (fsblkcnt_t) blocks_available; st->f_bavail = (fsblkcnt_t) user_blocks_available; st->f_files = (fsfilcnt_t) total_file_nodes; st->f_ffree = (fsfilcnt_t) free_file_nodes; #if HAVE_FSID_INT st->f_fsid = (unsigned long) fs_identifier; #endif } } /* See if the share is case sensitive */ if (!NT_STATUS_IS_OK(cli_get_fs_attr_info(cli, &fs_attrs))) { /* * We can't determine the case sensitivity of * the share. We have no choice but to use the * user-specified case sensitivity setting. */ if (! smbc_getOptionCaseSensitive(context)) { flags |= SMBC_VFS_FEATURE_CASE_INSENSITIVE; } } else { if (! (fs_attrs & FILE_CASE_SENSITIVE_SEARCH)) { flags |= SMBC_VFS_FEATURE_CASE_INSENSITIVE; } } /* See if DFS is supported */ if ((cli->capabilities & CAP_DFS) && cli->dfsroot) { flags |= SMBC_VFS_FEATURE_DFS; } #if HAVE_STATVFS_F_FLAG st->f_flag = flags; #elif HAVE_STATVFS_F_FLAGS st->f_flags = flags; #endif return 0; }