From: Steve French <stfrench@microsoft.com>
Date: Sat, 10 Oct 2020 20:11:47 -0500
Subject: [PATCH] SMB3.1.1: add defines for new signing negotiate context
Git-commit: 682955491a0d89ed7993d7b7f5051c858634ee70
Patch-mainline: v5.10-rc1
References: bsc#1192606
Currently there are three supported signing algorithms
Reviewed-by: Aurelien Aptel <aaptel@suse.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Acked-by: Enzo Matsumiya <ematsumiya@suse.de>
---
fs/cifs/smb2pdu.h | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/fs/cifs/smb2pdu.h b/fs/cifs/smb2pdu.h
index 4dfb51dd7065..5932fc0dc62c 100644
--- a/fs/cifs/smb2pdu.h
+++ b/fs/cifs/smb2pdu.h
@@ -323,6 +323,7 @@ struct smb2_negotiate_req {
#define SMB2_NETNAME_NEGOTIATE_CONTEXT_ID cpu_to_le16(5)
#define SMB2_TRANSPORT_CAPABILITIES cpu_to_le16(6)
#define SMB2_RDMA_TRANSFORM_CAPABILITIES cpu_to_le16(7)
+#define SMB2_SIGNING_CAPABILITIES cpu_to_le16(8)
#define SMB2_POSIX_EXTENSIONS_AVAILABLE cpu_to_le16(0x100)
struct smb2_neg_context {
@@ -416,6 +417,19 @@ struct smb2_rdma_transform_capabilities_context {
__le16 RDMATransformIds[1];
} __packed;
+/* Signing algorithms */
+#define SIGNING_ALG_HMAC_SHA256 0
+#define SIGNING_ALG_AES_CMAC 1
+#define SIGNING_ALG_AES_GMAC 2
+
+struct smb2_signing_capabilities {
+ __le16 ContextType; /* 8 */
+ __le16 DataLength;
+ __u32 Reserved;
+ __le16 SigningAlgorithmCount;
+ __le16 SigningAlgorithms[];
+} __packed;
+
#define POSIX_CTXT_DATA_LEN 16
struct smb2_posix_neg_context {
__le16 ContextType; /* 0x100 */
--
2.33.1