From: Volker Lendecke <vl@samba.org>
Date: Wed, 27 Sep 2023 08:44:30 +0000 (+0200)
Subject: smbd: Add smb3_file_posix_information_init()
X-Git-Tag: tevent-0.16.0~243
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=36fd98a5ef527347ed2c7b766383418920fe498e;p=thirdparty%2Fsamba.git

smbd: Add smb3_file_posix_information_init()

Copy the logic from store_smb2_posix_info() to allow use of
ndr_push_smb3_file_posix_information().

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
---

diff --git a/source3/smbd/proto.h b/source3/smbd/proto.h
index 04b1b053ae6..a0a5c168cc0 100644
--- a/source3/smbd/proto.h
+++ b/source3/smbd/proto.h
@@ -1276,4 +1276,12 @@ ssize_t store_smb2_posix_info(
 	uint8_t *buf,
 	size_t buflen);
 
+struct smb3_file_posix_information;
+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);
+
 #endif /* _SMBD_PROTO_H_ */
diff --git a/source3/smbd/smb2_posix.c b/source3/smbd/smb2_posix.c
index 7c56af917e4..6908eb9a7b7 100644
--- a/source3/smbd/smb2_posix.c
+++ b/source3/smbd/smb2_posix.c
@@ -21,6 +21,7 @@
 #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"
 
 /*
@@ -177,3 +178,49 @@ ssize_t store_smb2_posix_info(
 
 	return cc_len + 68;
 }
+
+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),
+		.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.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) {
+		uid_to_sid(&dst->cc.owner, 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;
+	}
+}