From: Steve French <stfrench@microsoft.com>
Date: Sun, 11 Oct 2020 01:11:47 +0000 (-0500)
Subject: SMB3.1.1: add defines for new signing negotiate context
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=682955491a0d89ed7993d7b7f5051c858634ee70;p=linux.git

SMB3.1.1: add defines for new signing negotiate context

Currently there are three supported signing algorithms

Reviewed-by: Aurelien Aptel <aaptel@suse.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
---

diff --git a/fs/cifs/smb2pdu.h b/fs/cifs/smb2pdu.h
index 4dfb51dd70656..5932fc0dc62cc 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 */