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authorNamjae Jeon <linkinjeon@kernel.org>2021-09-29 13:09:24 +0900
committerSteve French <stfrench@microsoft.com>2021-10-07 10:18:27 -0500
commit51a1387393d98c2ba52d53d089720fa9f1463178 (patch)
tree2fc41e3cf470fd77d48d45408dcb1ac1c6888bbb /fs/ksmbd/smb2pdu.c
parentksmbd: check strictly data area in ksmbd_smb2_check_message() (diff)
downloadlinux-dev-51a1387393d98c2ba52d53d089720fa9f1463178.tar.xz
linux-dev-51a1387393d98c2ba52d53d089720fa9f1463178.zip
ksmbd: remove the leftover of smb2.0 dialect support
Although ksmbd doesn't send SMB2.0 support in supported dialect list of smb negotiate response, There is the leftover of smb2.0 dialect. This patch remove it not to support SMB2.0 in ksmbd. Cc: Tom Talpey <tom@talpey.com> Cc: Ronnie Sahlberg <ronniesahlberg@gmail.com> Cc: Ralph Böhme <slow@samba.org> Cc: Hyunchul Lee <hyc.lee@gmail.com> Signed-off-by: Namjae Jeon <linkinjeon@kernel.org> Signed-off-by: Steve French <stfrench@microsoft.com>
Diffstat (limited to 'fs/ksmbd/smb2pdu.c')
-rw-r--r--fs/ksmbd/smb2pdu.c34
1 files changed, 9 insertions, 25 deletions
diff --git a/fs/ksmbd/smb2pdu.c b/fs/ksmbd/smb2pdu.c
index dcf907738610..cd2313af811d 100644
--- a/fs/ksmbd/smb2pdu.c
+++ b/fs/ksmbd/smb2pdu.c
@@ -236,9 +236,6 @@ int init_smb2_neg_rsp(struct ksmbd_work *work)
if (conn->need_neg == false)
return -EINVAL;
- if (!(conn->dialect >= SMB20_PROT_ID &&
- conn->dialect <= SMB311_PROT_ID))
- return -EINVAL;
rsp_hdr = work->response_buf;
@@ -1166,13 +1163,6 @@ int smb2_handle_negotiate(struct ksmbd_work *work)
case SMB21_PROT_ID:
init_smb2_1_server(conn);
break;
- case SMB20_PROT_ID:
- rc = init_smb2_0_server(conn);
- if (rc) {
- rsp->hdr.Status = STATUS_NOT_SUPPORTED;
- goto err_out;
- }
- break;
case SMB2X_PROT_ID:
case BAD_PROT_ID:
default:
@@ -1191,11 +1181,9 @@ int smb2_handle_negotiate(struct ksmbd_work *work)
rsp->MaxReadSize = cpu_to_le32(conn->vals->max_read_size);
rsp->MaxWriteSize = cpu_to_le32(conn->vals->max_write_size);
- if (conn->dialect > SMB20_PROT_ID) {
- memcpy(conn->ClientGUID, req->ClientGUID,
- SMB2_CLIENT_GUID_SIZE);
- conn->cli_sec_mode = le16_to_cpu(req->SecurityMode);
- }
+ memcpy(conn->ClientGUID, req->ClientGUID,
+ SMB2_CLIENT_GUID_SIZE);
+ conn->cli_sec_mode = le16_to_cpu(req->SecurityMode);
rsp->StructureSize = cpu_to_le16(65);
rsp->DialectRevision = cpu_to_le16(conn->dialect);
@@ -1537,11 +1525,9 @@ binding_session:
}
}
- if (conn->dialect > SMB20_PROT_ID) {
- if (!ksmbd_conn_lookup_dialect(conn)) {
- pr_err("fail to verify the dialect\n");
- return -ENOENT;
- }
+ if (!ksmbd_conn_lookup_dialect(conn)) {
+ pr_err("fail to verify the dialect\n");
+ return -ENOENT;
}
return 0;
}
@@ -1623,11 +1609,9 @@ static int krb5_authenticate(struct ksmbd_work *work)
}
}
- if (conn->dialect > SMB20_PROT_ID) {
- if (!ksmbd_conn_lookup_dialect(conn)) {
- pr_err("fail to verify the dialect\n");
- return -ENOENT;
- }
+ if (!ksmbd_conn_lookup_dialect(conn)) {
+ pr_err("fail to verify the dialect\n");
+ return -ENOENT;
}
return 0;
}