[PATCH][SMB3.1.1] Add defines for new signing context

[Steve French <smfrench@xxxxxxxxx>]

Add defines for the three supported signing algorithms

Signed-off-by: Steve French <stfrench@xxxxxxxxxxxxx>
---
 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 */
-- 
Thanks,

Steve

From e913b52c8903ff4488ab587ca2e475608e405b24 Mon Sep 17 00:00:00 2001
From: Steve French <stfrench@xxxxxxxxxxxxx>
Date: Sat, 10 Oct 2020 20:11:47 -0500
Subject: [PATCH] SMB3.1.1: add defines for new signing negotiate context

Currently there are three supported signing algorithms

Signed-off-by: Steve French <stfrench@xxxxxxxxxxxxx>
---
 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 */
-- 
2.25.1