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authorRonnie Sahlberg <lsahlber@redhat.com>2018-06-01 02:53:08 +0200
committerSteve French <smfrench@gmail.com>2018-06-03 01:36:26 +0200
commit8ce79ec359ad9f9d94aabf16c1ea5b8f28481c0f (patch)
tree1a723d4c75b30ccf4d407d6556ecf96db54c03e0 /fs/cifs/smb2ops.c
parentcifs: remove header_preamble_size where it is always 0 (diff)
downloadlinux-8ce79ec359ad9f9d94aabf16c1ea5b8f28481c0f.tar.xz
linux-8ce79ec359ad9f9d94aabf16c1ea5b8f28481c0f.zip
cifs: update multiplex loop to handle compounded responses
Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com> Signed-off-by: Steve French <smfrench@gmail.com>
Diffstat (limited to '')
-rw-r--r--fs/cifs/smb2ops.c17
1 files changed, 17 insertions, 0 deletions
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index 36e74957b419..43ec82ae2ee5 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -2807,6 +2807,19 @@ smb3_handle_read_data(struct TCP_Server_Info *server, struct mid_q_entry *mid)
NULL, 0, 0);
}
+static int
+smb2_next_header(char *buf)
+{
+ struct smb2_sync_hdr *hdr = (struct smb2_sync_hdr *)buf;
+ struct smb2_transform_hdr *t_hdr = (struct smb2_transform_hdr *)buf;
+
+ if (hdr->ProtocolId == SMB2_TRANSFORM_PROTO_NUM)
+ return sizeof(struct smb2_transform_hdr) +
+ le32_to_cpu(t_hdr->OriginalMessageSize);
+
+ return le32_to_cpu(hdr->NextCommand);
+}
+
struct smb_version_operations smb20_operations = {
.compare_fids = smb2_compare_fids,
.setup_request = smb2_setup_request,
@@ -2898,6 +2911,7 @@ struct smb_version_operations smb20_operations = {
.get_acl_by_fid = get_smb2_acl_by_fid,
.set_acl = set_smb2_acl,
#endif /* CIFS_ACL */
+ .next_header = smb2_next_header,
};
struct smb_version_operations smb21_operations = {
@@ -2992,6 +3006,7 @@ struct smb_version_operations smb21_operations = {
.get_acl_by_fid = get_smb2_acl_by_fid,
.set_acl = set_smb2_acl,
#endif /* CIFS_ACL */
+ .next_header = smb2_next_header,
};
struct smb_version_operations smb30_operations = {
@@ -3096,6 +3111,7 @@ struct smb_version_operations smb30_operations = {
.get_acl_by_fid = get_smb2_acl_by_fid,
.set_acl = set_smb2_acl,
#endif /* CIFS_ACL */
+ .next_header = smb2_next_header,
};
#ifdef CONFIG_CIFS_SMB311
@@ -3196,6 +3212,7 @@ struct smb_version_operations smb311_operations = {
.query_all_EAs = smb2_query_eas,
.set_EA = smb2_set_ea,
#endif /* CIFS_XATTR */
+ .next_header = smb2_next_header,
};
#endif /* CIFS_SMB311 */