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-rw-r--r--fs/cifs/cifsglob.h3
-rw-r--r--fs/cifs/file.c4
-rw-r--r--fs/cifs/smb2inode.c2
-rw-r--r--fs/cifs/smb2ops.c49
-rw-r--r--fs/cifs/smb2pdu.c38
-rw-r--r--fs/cifs/smb2pdu.h11
-rw-r--r--fs/cifs/smb2proto.h5
7 files changed, 97 insertions, 15 deletions
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index d34a4ed8c57d..5b976e01dd6b 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -368,6 +368,9 @@ struct smb_version_operations {
/* close a file */
void (*close)(const unsigned int, struct cifs_tcon *,
struct cifs_fid *);
+ /* close a file, returning file attributes and timestamps */
+ void (*close_getattr)(const unsigned int xid, struct cifs_tcon *tcon,
+ struct cifsFileInfo *pfile_info);
/* send a flush request to the server */
int (*flush)(const unsigned int, struct cifs_tcon *, struct cifs_fid *);
/* async read from the server */
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 9ae41042fa3d..043288b5c728 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -496,7 +496,9 @@ void _cifsFileInfo_put(struct cifsFileInfo *cifs_file,
unsigned int xid;
xid = get_xid();
- if (server->ops->close)
+ if (server->ops->close_getattr)
+ server->ops->close_getattr(xid, tcon, cifs_file);
+ else if (server->ops->close)
server->ops->close(xid, tcon, &cifs_file->fid);
_free_xid(xid);
}
diff --git a/fs/cifs/smb2inode.c b/fs/cifs/smb2inode.c
index 4121ac1163ca..18c7a33adceb 100644
--- a/fs/cifs/smb2inode.c
+++ b/fs/cifs/smb2inode.c
@@ -313,7 +313,7 @@ smb2_compound_op(const unsigned int xid, struct cifs_tcon *tcon,
rqst[num_rqst].rq_iov = close_iov;
rqst[num_rqst].rq_nvec = 1;
rc = SMB2_close_init(tcon, &rqst[num_rqst], COMPOUND_FID,
- COMPOUND_FID);
+ COMPOUND_FID, false);
smb2_set_related(&rqst[num_rqst]);
if (rc)
goto finished;
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index a7f328f79c6f..a5c96bc522cb 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -1178,7 +1178,7 @@ smb2_set_ea(const unsigned int xid, struct cifs_tcon *tcon,
memset(&close_iov, 0, sizeof(close_iov));
rqst[2].rq_iov = close_iov;
rqst[2].rq_nvec = 1;
- rc = SMB2_close_init(tcon, &rqst[2], COMPOUND_FID, COMPOUND_FID);
+ rc = SMB2_close_init(tcon, &rqst[2], COMPOUND_FID, COMPOUND_FID, false);
smb2_set_related(&rqst[2]);
rc = compound_send_recv(xid, ses, flags, 3, rqst,
@@ -1332,6 +1332,45 @@ smb2_close_file(const unsigned int xid, struct cifs_tcon *tcon,
SMB2_close(xid, tcon, fid->persistent_fid, fid->volatile_fid);
}
+static void
+smb2_close_getattr(const unsigned int xid, struct cifs_tcon *tcon,
+ struct cifsFileInfo *cfile)
+{
+ struct smb2_file_network_open_info file_inf;
+ struct inode *inode;
+ int rc;
+
+ rc = __SMB2_close(xid, tcon, cfile->fid.persistent_fid,
+ cfile->fid.volatile_fid, &file_inf);
+ if (rc)
+ return;
+
+ inode = d_inode(cfile->dentry);
+
+ spin_lock(&inode->i_lock);
+ CIFS_I(inode)->time = jiffies;
+
+ /* Creation time should not need to be updated on close */
+ if (file_inf.LastWriteTime)
+ inode->i_mtime = cifs_NTtimeToUnix(file_inf.LastWriteTime);
+ if (file_inf.ChangeTime)
+ inode->i_ctime = cifs_NTtimeToUnix(file_inf.ChangeTime);
+ if (file_inf.LastAccessTime)
+ inode->i_atime = cifs_NTtimeToUnix(file_inf.LastAccessTime);
+
+ /*
+ * i_blocks is not related to (i_size / i_blksize),
+ * but instead 512 byte (2**9) size is required for
+ * calculating num blocks.
+ */
+ if (le64_to_cpu(file_inf.AllocationSize) > 4096)
+ inode->i_blocks =
+ (512 - 1 + le64_to_cpu(file_inf.AllocationSize)) >> 9;
+
+ /* End of file and Attributes should not have to be updated on close */
+ spin_unlock(&inode->i_lock);
+}
+
static int
SMB2_request_res_key(const unsigned int xid, struct cifs_tcon *tcon,
u64 persistent_fid, u64 volatile_fid,
@@ -1512,7 +1551,7 @@ smb2_ioctl_query_info(const unsigned int xid,
rqst[2].rq_iov = close_iov;
rqst[2].rq_nvec = 1;
- rc = SMB2_close_init(tcon, &rqst[2], COMPOUND_FID, COMPOUND_FID);
+ rc = SMB2_close_init(tcon, &rqst[2], COMPOUND_FID, COMPOUND_FID, false);
if (rc)
goto iqinf_exit;
smb2_set_related(&rqst[2]);
@@ -2241,7 +2280,7 @@ smb2_query_info_compound(const unsigned int xid, struct cifs_tcon *tcon,
rqst[2].rq_iov = close_iov;
rqst[2].rq_nvec = 1;
- rc = SMB2_close_init(tcon, &rqst[2], COMPOUND_FID, COMPOUND_FID);
+ rc = SMB2_close_init(tcon, &rqst[2], COMPOUND_FID, COMPOUND_FID, false);
if (rc)
goto qic_exit;
smb2_set_related(&rqst[2]);
@@ -2654,7 +2693,7 @@ smb2_query_symlink(const unsigned int xid, struct cifs_tcon *tcon,
rqst[2].rq_iov = close_iov;
rqst[2].rq_nvec = 1;
- rc = SMB2_close_init(tcon, &rqst[2], COMPOUND_FID, COMPOUND_FID);
+ rc = SMB2_close_init(tcon, &rqst[2], COMPOUND_FID, COMPOUND_FID, false);
if (rc)
goto querty_exit;
@@ -4707,6 +4746,7 @@ struct smb_version_operations smb30_operations = {
.open = smb2_open_file,
.set_fid = smb2_set_fid,
.close = smb2_close_file,
+ .close_getattr = smb2_close_getattr,
.flush = smb2_flush_file,
.async_readv = smb2_async_readv,
.async_writev = smb2_async_writev,
@@ -4816,6 +4856,7 @@ struct smb_version_operations smb311_operations = {
.open = smb2_open_file,
.set_fid = smb2_set_fid,
.close = smb2_close_file,
+ .close_getattr = smb2_close_getattr,
.flush = smb2_flush_file,
.async_readv = smb2_async_readv,
.async_writev = smb2_async_writev,
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index cec53eb8a6da..187a5ce68806 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -2932,7 +2932,7 @@ SMB2_set_compression(const unsigned int xid, struct cifs_tcon *tcon,
int
SMB2_close_init(struct cifs_tcon *tcon, struct smb_rqst *rqst,
- u64 persistent_fid, u64 volatile_fid)
+ u64 persistent_fid, u64 volatile_fid, bool query_attrs)
{
struct smb2_close_req *req;
struct kvec *iov = rqst->rq_iov;
@@ -2945,6 +2945,10 @@ SMB2_close_init(struct cifs_tcon *tcon, struct smb_rqst *rqst,
req->PersistentFileId = persistent_fid;
req->VolatileFileId = volatile_fid;
+ if (query_attrs)
+ req->Flags = SMB2_CLOSE_FLAG_POSTQUERY_ATTRIB;
+ else
+ req->Flags = 0;
iov[0].iov_base = (char *)req;
iov[0].iov_len = total_len;
@@ -2959,8 +2963,9 @@ SMB2_close_free(struct smb_rqst *rqst)
}
int
-SMB2_close(const unsigned int xid, struct cifs_tcon *tcon,
- u64 persistent_fid, u64 volatile_fid)
+__SMB2_close(const unsigned int xid, struct cifs_tcon *tcon,
+ u64 persistent_fid, u64 volatile_fid,
+ struct smb2_file_network_open_info *pbuf)
{
struct smb_rqst rqst;
struct smb2_close_rsp *rsp = NULL;
@@ -2970,6 +2975,7 @@ SMB2_close(const unsigned int xid, struct cifs_tcon *tcon,
int resp_buftype = CIFS_NO_BUFFER;
int rc = 0;
int flags = 0;
+ bool query_attrs = false;
cifs_dbg(FYI, "Close\n");
@@ -2984,8 +2990,13 @@ SMB2_close(const unsigned int xid, struct cifs_tcon *tcon,
rqst.rq_iov = iov;
rqst.rq_nvec = 1;
+ /* check if need to ask server to return timestamps in close response */
+ if (pbuf)
+ query_attrs = true;
+
trace_smb3_close_enter(xid, persistent_fid, tcon->tid, ses->Suid);
- rc = SMB2_close_init(tcon, &rqst, persistent_fid, volatile_fid);
+ rc = SMB2_close_init(tcon, &rqst, persistent_fid, volatile_fid,
+ query_attrs);
if (rc)
goto close_exit;
@@ -2997,14 +3008,18 @@ SMB2_close(const unsigned int xid, struct cifs_tcon *tcon,
trace_smb3_close_err(xid, persistent_fid, tcon->tid, ses->Suid,
rc);
goto close_exit;
- } else
+ } else {
trace_smb3_close_done(xid, persistent_fid, tcon->tid,
ses->Suid);
+ /*
+ * Note that have to subtract 4 since struct network_open_info
+ * has a final 4 byte pad that close response does not have
+ */
+ if (pbuf)
+ memcpy(pbuf, (char *)&rsp->CreationTime, sizeof(*pbuf) - 4);
+ }
atomic_dec(&tcon->num_remote_opens);
-
- /* BB FIXME - decode close response, update inode for caching */
-
close_exit:
SMB2_close_free(&rqst);
free_rsp_buf(resp_buftype, rsp);
@@ -3023,6 +3038,13 @@ close_exit:
}
int
+SMB2_close(const unsigned int xid, struct cifs_tcon *tcon,
+ u64 persistent_fid, u64 volatile_fid)
+{
+ return __SMB2_close(xid, tcon, persistent_fid, volatile_fid, NULL);
+}
+
+int
smb2_validate_iov(unsigned int offset, unsigned int buffer_length,
struct kvec *iov, unsigned int min_buf_size)
{
diff --git a/fs/cifs/smb2pdu.h b/fs/cifs/smb2pdu.h
index f264e1d36fe1..fa2533da316d 100644
--- a/fs/cifs/smb2pdu.h
+++ b/fs/cifs/smb2pdu.h
@@ -1570,6 +1570,17 @@ struct smb2_file_eof_info { /* encoding of request for level 10 */
__le64 EndOfFile; /* new end of file value */
} __packed; /* level 20 Set */
+struct smb2_file_network_open_info {
+ __le64 CreationTime;
+ __le64 LastAccessTime;
+ __le64 LastWriteTime;
+ __le64 ChangeTime;
+ __le64 AllocationSize;
+ __le64 EndOfFile;
+ __le32 Attributes;
+ __le32 Reserved;
+} __packed; /* level 34 Query also similar returned in close rsp and open rsp */
+
extern char smb2_padding[7];
#endif /* _SMB2PDU_H */
diff --git a/fs/cifs/smb2proto.h b/fs/cifs/smb2proto.h
index 5caeaa99cb7c..a18272c987fe 100644
--- a/fs/cifs/smb2proto.h
+++ b/fs/cifs/smb2proto.h
@@ -155,10 +155,13 @@ extern int SMB2_change_notify(const unsigned int xid, struct cifs_tcon *tcon,
u64 persistent_fid, u64 volatile_fid, bool watch_tree,
u32 completion_filter);
+extern int __SMB2_close(const unsigned int xid, struct cifs_tcon *tcon,
+ u64 persistent_fid, u64 volatile_fid,
+ struct smb2_file_network_open_info *pbuf);
extern int SMB2_close(const unsigned int xid, struct cifs_tcon *tcon,
u64 persistent_file_id, u64 volatile_file_id);
extern int SMB2_close_init(struct cifs_tcon *tcon, struct smb_rqst *rqst,
- u64 persistent_file_id, u64 volatile_file_id);
+ u64 persistent_fid, u64 volatile_fid, bool query_attrs);
extern void SMB2_close_free(struct smb_rqst *rqst);
extern int SMB2_flush(const unsigned int xid, struct cifs_tcon *tcon,
u64 persistent_file_id, u64 volatile_file_id);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.