summaryrefslogtreecommitdiffstats
path: root/fs/cifs
diff options
context:
space:
mode:
Diffstat (limited to 'fs/cifs')
-rw-r--r--fs/cifs/smb2file.c18
-rw-r--r--fs/cifs/smb2ops.c7
-rw-r--r--fs/cifs/smb2pdu.c46
-rw-r--r--fs/cifs/smb2pdu.h4
-rw-r--r--fs/cifs/smb2proto.h7
5 files changed, 56 insertions, 26 deletions
diff --git a/fs/cifs/smb2file.c b/fs/cifs/smb2file.c
index 54bffb2a1786..e6a1fc72018f 100644
--- a/fs/cifs/smb2file.c
+++ b/fs/cifs/smb2file.c
@@ -88,14 +88,20 @@ smb2_open_file(const unsigned int xid, struct cifs_open_parms *oparms,
}
if (buf) {
- /* open response does not have IndexNumber field - get it */
- rc = SMB2_get_srv_num(xid, oparms->tcon, fid->persistent_fid,
+ /* if open response does not have IndexNumber field - get it */
+ if (smb2_data->IndexNumber == 0) {
+ rc = SMB2_get_srv_num(xid, oparms->tcon,
+ fid->persistent_fid,
fid->volatile_fid,
&smb2_data->IndexNumber);
- if (rc) {
- /* let get_inode_info disable server inode numbers */
- smb2_data->IndexNumber = 0;
- rc = 0;
+ if (rc) {
+ /*
+ * let get_inode_info disable server inode
+ * numbers
+ */
+ smb2_data->IndexNumber = 0;
+ rc = 0;
+ }
}
move_smb2_info_to_cifs(buf, smb2_data);
}
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index fed75e1646c1..a5bc1b671c12 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -754,11 +754,12 @@ int open_shroot(unsigned int xid, struct cifs_tcon *tcon, struct cifs_fid *pfid)
tcon->crfid.is_valid = true;
kref_init(&tcon->crfid.refcount);
+ /* BB TBD check to see if oplock level check can be removed below */
if (o_rsp->OplockLevel == SMB2_OPLOCK_LEVEL_LEASE) {
kref_get(&tcon->crfid.refcount);
- oplock = smb2_parse_lease_state(server, o_rsp,
- &oparms.fid->epoch,
- oparms.fid->lease_key);
+ smb2_parse_contexts(server, o_rsp,
+ &oparms.fid->epoch,
+ oparms.fid->lease_key, &oplock, NULL);
} else
goto oshr_exit;
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index f58e4dc3987b..c8cd7b6cdda2 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -1873,10 +1873,21 @@ create_reconnect_durable_buf(struct cifs_fid *fid)
return buf;
}
-__u8
-smb2_parse_lease_state(struct TCP_Server_Info *server,
+static void
+parse_query_id_ctxt(struct create_context *cc, struct smb2_file_all_info *buf)
+{
+ struct create_on_disk_id *pdisk_id = (struct create_on_disk_id *)cc;
+
+ cifs_dbg(FYI, "parse query id context 0x%llx 0x%llx\n",
+ pdisk_id->DiskFileId, pdisk_id->VolumeId);
+ buf->IndexNumber = pdisk_id->DiskFileId;
+}
+
+void
+smb2_parse_contexts(struct TCP_Server_Info *server,
struct smb2_create_rsp *rsp,
- unsigned int *epoch, char *lease_key)
+ unsigned int *epoch, char *lease_key, __u8 *oplock,
+ struct smb2_file_all_info *buf)
{
char *data_offset;
struct create_context *cc;
@@ -1884,15 +1895,24 @@ smb2_parse_lease_state(struct TCP_Server_Info *server,
unsigned int remaining;
char *name;
+ *oplock = 0;
data_offset = (char *)rsp + le32_to_cpu(rsp->CreateContextsOffset);
remaining = le32_to_cpu(rsp->CreateContextsLength);
cc = (struct create_context *)data_offset;
+
+ /* Initialize inode number to 0 in case no valid data in qfid context */
+ if (buf)
+ buf->IndexNumber = 0;
+
while (remaining >= sizeof(struct create_context)) {
name = le16_to_cpu(cc->NameOffset) + (char *)cc;
if (le16_to_cpu(cc->NameLength) == 4 &&
- strncmp(name, "RqLs", 4) == 0)
- return server->ops->parse_lease_buf(cc, epoch,
- lease_key);
+ strncmp(name, SMB2_CREATE_REQUEST_LEASE, 4) == 0)
+ *oplock = server->ops->parse_lease_buf(cc, epoch,
+ lease_key);
+ else if (buf && (le16_to_cpu(cc->NameLength) == 4) &&
+ strncmp(name, SMB2_CREATE_QUERY_ON_DISK_ID, 4) == 0)
+ parse_query_id_ctxt(cc, buf);
next = le32_to_cpu(cc->Next);
if (!next)
@@ -1901,7 +1921,10 @@ smb2_parse_lease_state(struct TCP_Server_Info *server,
cc = (struct create_context *)((char *)cc + next);
}
- return 0;
+ if (rsp->OplockLevel != SMB2_OPLOCK_LEVEL_LEASE)
+ *oplock = rsp->OplockLevel;
+
+ return;
}
static int
@@ -2588,12 +2611,9 @@ SMB2_open(const unsigned int xid, struct cifs_open_parms *oparms, __le16 *path,
buf->DeletePending = 0;
}
- if (rsp->OplockLevel == SMB2_OPLOCK_LEVEL_LEASE)
- *oplock = smb2_parse_lease_state(server, rsp,
- &oparms->fid->epoch,
- oparms->fid->lease_key);
- else
- *oplock = rsp->OplockLevel;
+
+ smb2_parse_contexts(server, rsp, &oparms->fid->epoch,
+ oparms->fid->lease_key, oplock, buf);
creat_exit:
SMB2_open_free(&rqst);
free_rsp_buf(resp_buftype, rsp);
diff --git a/fs/cifs/smb2pdu.h b/fs/cifs/smb2pdu.h
index 7e2e782f8edd..747de9317659 100644
--- a/fs/cifs/smb2pdu.h
+++ b/fs/cifs/smb2pdu.h
@@ -818,7 +818,9 @@ struct durable_reconnect_context_v2 {
} __packed;
/* See MS-SMB2 2.2.14.2.9 */
-struct on_disk_id {
+struct create_on_disk_id {
+ struct create_context ccontext;
+ __u8 Name[8];
__le64 DiskFileId;
__le64 VolumeId;
__u32 Reserved[4];
diff --git a/fs/cifs/smb2proto.h b/fs/cifs/smb2proto.h
index 52df125e9189..07ca72486cfa 100644
--- a/fs/cifs/smb2proto.h
+++ b/fs/cifs/smb2proto.h
@@ -228,9 +228,10 @@ extern int smb3_validate_negotiate(const unsigned int, struct cifs_tcon *);
extern enum securityEnum smb2_select_sectype(struct TCP_Server_Info *,
enum securityEnum);
-extern __u8 smb2_parse_lease_state(struct TCP_Server_Info *server,
- struct smb2_create_rsp *rsp,
- unsigned int *epoch, char *lease_key);
+extern void smb2_parse_contexts(struct TCP_Server_Info *server,
+ struct smb2_create_rsp *rsp,
+ unsigned int *epoch, char *lease_key,
+ __u8 *oplock, struct smb2_file_all_info *buf);
extern int smb3_encryption_required(const struct cifs_tcon *tcon);
extern int smb2_validate_iov(unsigned int offset, unsigned int buffer_length,
struct kvec *iov, unsigned int min_buf_size);
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-24 10:12:46 +0000