From: Steve French <stfrench@microsoft.com>
Date: Thu, 11 Jun 2020 20:23:38 -0500
Subject: [PATCH] smb311: Add support for SMB311 query info (non-compounded)
Git-commit: b1bc1874b885683df5da9d9548ca66dfc0e407f2
Patch-mainline: v5.8-rc1
References: bsc#1192606
Add worker function for non-compounded SMB3.1.1 POSIX Extensions query info.
This is needed for revalidate of root (cached) directory for example.
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
Reviewed-by: Aurelien Aptel <aaptel@suse.com>
Acked-by: Enzo Matsumiya <ematsumiya@suse.de>
---
fs/cifs/smb2pdu.c | 13 +++++++++++++
fs/cifs/smb2proto.h | 2 ++
2 files changed, 15 insertions(+)
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index 3f232c8da390..3f5c3dd57c86 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -3458,6 +3458,19 @@ int SMB2_query_info(const unsigned int xid, struct cifs_tcon *tcon,
NULL);
}
+int
+SMB311_posix_query_info(const unsigned int xid, struct cifs_tcon *tcon,
+ u64 persistent_fid, u64 volatile_fid, struct smb311_posix_qinfo *data, u32 *plen)
+{
+ size_t output_len = sizeof(struct smb311_posix_qinfo *) +
+ (sizeof(struct cifs_sid) * 2) + (PATH_MAX * 2);
+ *plen = 0;
+
+ return query_info(xid, tcon, persistent_fid, volatile_fid,
+ SMB_FIND_FILE_POSIX_INFO, SMB2_O_INFO_FILE, 0,
+ output_len, sizeof(struct smb311_posix_qinfo), (void **)&data, plen);
+}
+
int
SMB2_query_acl(const unsigned int xid, struct cifs_tcon *tcon,
u64 persistent_fid, u64 volatile_fid,
diff --git a/fs/cifs/smb2proto.h b/fs/cifs/smb2proto.h
index a5c6da59847e..2f8ecbf54214 100644
--- a/fs/cifs/smb2proto.h
+++ b/fs/cifs/smb2proto.h
@@ -182,6 +182,8 @@ extern int SMB2_flush_init(const unsigned int xid, struct smb_rqst *rqst,
struct TCP_Server_Info *server,
u64 persistent_file_id, u64 volatile_file_id);
extern void SMB2_flush_free(struct smb_rqst *rqst);
+extern int SMB311_posix_query_info(const unsigned int xid, struct cifs_tcon *tcon,
+ u64 persistent_fid, u64 volatile_fid, struct smb311_posix_qinfo *data, u32 *plen);
extern int SMB2_query_info(const unsigned int xid, struct cifs_tcon *tcon,
u64 persistent_file_id, u64 volatile_file_id,
struct smb2_file_all_info *data);
--
2.33.1