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-rw-r--r--source3/libsmb/libsmb_stat.c538
1 files changed, 538 insertions, 0 deletions
diff --git a/source3/libsmb/libsmb_stat.c b/source3/libsmb/libsmb_stat.c
new file mode 100644
index 0000000..ae18f59
--- /dev/null
+++ b/source3/libsmb/libsmb_stat.c
@@ -0,0 +1,538 @@
+/*
+ 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 "libsmb/libsmb.h"
+#include "libsmbclient.h"
+#include "libsmb_internal.h"
+#include "../libcli/smb/smbXcli_base.h"
+#include "lib/util/time.h"
+
+/*
+ * Generate an inode number from file name for those things that need it
+ */
+
+static ino_t generate_inode(const char *name)
+{
+ if (name == NULL) {
+ return (ino_t)-1;
+ }
+ return (ino_t)str_checksum(name);
+}
+
+/*
+ * Routine to put basic stat info into a stat structure ... Used by stat and
+ * fstat below.
+ */
+
+void setup_stat(struct stat *st,
+ const char *fname,
+ off_t size,
+ int attr,
+ ino_t ino,
+ dev_t dev,
+ struct timespec access_time_ts,
+ struct timespec change_time_ts,
+ struct timespec write_time_ts)
+{
+ st->st_mode = 0;
+
+ if (attr & FILE_ATTRIBUTE_DIRECTORY) {
+ st->st_mode = (S_IFDIR | 0555);
+ } else {
+ st->st_mode = (S_IFREG | 0444);
+ }
+
+ if (attr & FILE_ATTRIBUTE_ARCHIVE) {
+ st->st_mode |= S_IXUSR;
+ }
+ if (attr & FILE_ATTRIBUTE_SYSTEM) {
+ st->st_mode |= S_IXGRP;
+ }
+ if (attr & FILE_ATTRIBUTE_HIDDEN) {
+ st->st_mode |= S_IXOTH;
+ }
+ if (!(attr & FILE_ATTRIBUTE_READONLY)) {
+ 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 (attr & FILE_ATTRIBUTE_DIRECTORY) {
+ st->st_nlink = 2;
+ } else {
+ st->st_nlink = 1;
+ }
+
+ if (ino != 0) {
+ st->st_ino = ino;
+ } else {
+ st->st_ino = generate_inode(fname);
+ }
+
+ st->st_dev = dev;
+
+ st->st_atime = access_time_ts.tv_sec;
+ set_atimensec(st, access_time_ts.tv_nsec);
+
+ st->st_ctime = change_time_ts.tv_sec;
+ set_ctimensec(st, change_time_ts.tv_nsec);
+
+ st->st_mtime = write_time_ts.tv_sec;
+ set_mtimensec(st, write_time_ts.tv_nsec);
+}
+
+void setup_stat_from_stat_ex(const struct stat_ex *stex,
+ const char *fname,
+ struct stat *st)
+{
+ st->st_atime = stex->st_ex_atime.tv_sec;
+ set_atimensec(st, stex->st_ex_atime.tv_nsec);
+
+ st->st_ctime = stex->st_ex_ctime.tv_sec;
+ set_ctimensec(st, stex->st_ex_ctime.tv_nsec);
+
+ st->st_mtime = stex->st_ex_mtime.tv_sec;
+ set_mtimensec(st, stex->st_ex_mtime.tv_nsec);
+
+ st->st_mode = stex->st_ex_mode;
+ st->st_size = stex->st_ex_size;
+#ifdef HAVE_STAT_ST_BLKSIZE
+ st->st_blksize = 512;
+#endif
+#ifdef HAVE_STAT_ST_BLOCKS
+ st->st_blocks = (st->st_size + 511) / 512;
+#endif
+#ifdef HAVE_STRUCT_STAT_ST_RDEV
+ st->st_rdev = 0;
+#endif
+ st->st_uid = stex->st_ex_uid;
+ st->st_gid = stex->st_ex_gid;
+
+ st->st_nlink = stex->st_ex_nlink;
+
+ if (stex->st_ex_ino == 0) {
+ st->st_ino = 0;
+ if (fname != NULL) {
+ st->st_ino = generate_inode(fname);
+ }
+ } else {
+ st->st_ino = stex->st_ex_ino;
+ }
+
+ st->st_dev = stex->st_ex_dev;
+
+}
+
+/*
+ * 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;
+ uint16_t port = 0;
+ NTSTATUS status;
+ 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,
+ &port,
+ &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, port, share, &workgroup, &user, &password);
+ if (!srv) {
+ TALLOC_FREE(frame);
+ return -1; /* errno set by SMBC_server */
+ }
+
+ status = SMBC_getatr(context, srv, path, st);
+ if (!NT_STATUS_IS_OK(status)) {
+ TALLOC_FREE(frame);
+ errno = cli_status_to_errno(status);
+ return -1;
+ }
+
+ 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;
+ off_t size;
+ uint32_t attr;
+ 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;
+ uint16_t port = 0;
+ struct cli_credentials *creds = NULL;
+ TALLOC_CTX *frame = talloc_stackframe();
+ NTSTATUS status;
+
+ if (!context || !context->internal->initialized) {
+ errno = EINVAL;
+ TALLOC_FREE(frame);
+ return -1;
+ }
+
+ if (!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,
+ &port,
+ &share,
+ &path,
+ &user,
+ &password,
+ NULL)) {
+ errno = EINVAL;
+ TALLOC_FREE(frame);
+ return -1;
+ }
+
+ creds = context->internal->creds;
+
+ /*d_printf(">>>fstat: resolving %s\n", path);*/
+ status = cli_resolve_path(frame, "",
+ creds,
+ file->srv->cli, path,
+ &targetcli, &targetpath);
+ if (!NT_STATUS_IS_OK(status)) {
+ 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, &attr, &size,
+ NULL,
+ &access_time_ts,
+ &write_time_ts,
+ &change_time_ts,
+ &ino))) {
+ errno = EINVAL;
+ TALLOC_FREE(frame);
+ return -1;
+ }
+
+ setup_stat(st,
+ path,
+ size,
+ attr,
+ ino,
+ file->srv->dev,
+ access_time_ts,
+ change_time_ts,
+ write_time_ts);
+
+ 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;
+ TALLOC_CTX *frame = talloc_stackframe();
+
+ /* Determine if the provided path is a file or a folder */
+ if (SMBC_stat_ctx(context, path, &statbuf) < 0) {
+ TALLOC_FREE(frame);
+ 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) {
+ TALLOC_FREE(frame);
+ 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) {
+ TALLOC_FREE(frame);
+ return -1;
+ }
+ bIsDir = false;
+ } else {
+ /* It's neither a file nor a directory. Not supported. */
+ TALLOC_FREE(frame);
+ 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);
+ }
+
+ TALLOC_FREE(frame);
+ 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_t fs_attrs = 0;
+ struct cli_state *cli = file->srv->cli;
+ struct smbXcli_tcon *tcon;
+ TALLOC_CTX *frame = talloc_stackframe();
+
+ if (smbXcli_conn_protocol(cli->conn) >= PROTOCOL_SMB2_02) {
+ tcon = cli->smb2.tcon;
+ } else {
+ tcon = cli->smb1.tcon;
+ }
+
+ /* Initialize all fields (at least until we actually use them) */
+ ZERO_STRUCTP(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,
+ &sectors_per_allocation_unit,
+ &bytes_per_sector);
+ if (NT_STATUS_IS_OK(status)) {
+
+ /* ... then provide it */
+ st->f_bsize =
+ (unsigned long) bytes_per_sector;
+#ifdef 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;
+ st->f_bavail =
+ (fsblkcnt_t) caller_allocation_units;
+ }
+
+ flags |= SMBC_VFS_FEATURE_NO_UNIXCIFS;
+ } else {
+ uint32_t optimal_transfer_size;
+ uint32_t 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;
+#ifdef 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 (smbXcli_conn_dfs_supported(cli->conn) &&
+ smbXcli_tcon_is_dfs_share(tcon))
+ {
+ flags |= SMBC_VFS_FEATURE_DFS;
+ }
+
+#if defined(HAVE_STATVFS_F_FLAG)
+ st->f_flag = flags;
+#elif defined(HAVE_STATVFS_F_FLAGS)
+ st->f_flags = flags;
+#endif
+
+ TALLOC_FREE(frame);
+ return 0;
+}
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