1 files changed, 73 insertions, 0 deletions
diff --git a/source3/smbd/smb2_posix.c b/source3/smbd/smb2_posix.c
new file mode 100644
index 0000000..9623e59
--- /dev/null
+++ b/source3/smbd/smb2_posix.c
@@ -0,0 +1,73 @@
+/*
+   Unix SMB/CIFS implementation.
+   SMB2 POSIX code.
+   Copyright (C) Jeremy Allison                 2022
+
+   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 "smbd/smbd.h"
+#include "passdb/lookup_sid.h"
+#include "librpc/gen_ndr/ndr_security.h"
+#include "librpc/gen_ndr/smb3posix.h"
+#include "libcli/security/security.h"
+
+void smb3_file_posix_information_init(
+	connection_struct *conn,
+	const struct stat_ex *st,
+	uint32_t reparse_tag,
+	uint32_t dos_attributes,
+	struct smb3_file_posix_information *dst)
+{
+	*dst = (struct smb3_file_posix_information) {
+		.end_of_file = get_file_size_stat(st),
+		.allocation_size = SMB_VFS_GET_ALLOC_SIZE(conn,NULL,st),
+		.inode = SMB_VFS_FS_FILE_ID(conn, st),
+		.device = st->st_ex_dev,
+		.creation_time = unix_timespec_to_nt_time(st->st_ex_btime),
+		.last_access_time = unix_timespec_to_nt_time(st->st_ex_atime),
+		.last_write_time = unix_timespec_to_nt_time(st->st_ex_mtime),
+		.change_time = unix_timespec_to_nt_time(st->st_ex_ctime),
+		.cc.nlinks = st->st_ex_nlink,
+		.cc.reparse_tag = reparse_tag,
+		.cc.posix_perms = unix_perms_to_wire(st->st_ex_mode & ~S_IFMT),
+		.cc.owner = global_sid_NULL,
+		.cc.group = global_sid_NULL,
+	};
+
+	if (st->st_ex_uid != (uid_t)-1) {
+		uid_to_sid(&dst->cc.owner, st->st_ex_uid);
+	}
+	if (st->st_ex_gid != (uid_t)-1) {
+		gid_to_sid(&dst->cc.group, st->st_ex_gid);
+	}
+
+	switch (st->st_ex_mode & S_IFMT) {
+	case S_IFREG:
+		dst->file_attributes = dos_attributes;
+		break;
+	case S_IFDIR:
+		dst->file_attributes = dos_attributes | FILE_ATTRIBUTE_DIRECTORY;
+		break;
+	default:
+		/*
+		 * All non-directory or regular files are reported
+		 * as reparse points. Client may or may not be able
+		 * to access these.
+		 */
+		dst->file_attributes = FILE_ATTRIBUTE_REPARSE_POINT;
+		break;
+	}
+}