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authorLinus Torvalds <torvalds@linux-foundation.org>2018-04-15 18:06:22 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2018-04-15 18:06:22 -0700
commit09c9b0eaa0773264b795c9e1bbb2c9816732573f (patch)
tree590059d3c7074a7579413a5d6a16f3cf140c325a /fs/cifs/smb2pdu.h
parentf0d98d85831bf1a3b1f56f8c14af60797aaca536 (diff)
parentc1596ff52466522c98013f1610797a85ba5d4e63 (diff)
Merge tag '4.17-rc1SMB3-Fixes' of git://git.samba.org/sfrench/cifs-2.6
Pull cifs fixes from Steve French: "SMB3 fixes, a few for stable, and some important cleanup work from Ronnie of the smb3 transport code" * tag '4.17-rc1SMB3-Fixes' of git://git.samba.org/sfrench/cifs-2.6: cifs: change validate_buf to validate_iov cifs: remove rfc1002 hardcoded constants from cifs_discard_remaining_data() cifs: Change SMB2_open to return an iov for the error parameter cifs: add resp_buf_size to the mid_q_entry structure smb3.11: replace a 4 with server->vals->header_preamble_size cifs: replace a 4 with server->vals->header_preamble_size cifs: add pdu_size to the TCP_Server_Info structure SMB311: Improve checking of negotiate security contexts SMB3: Fix length checking of SMB3.11 negotiate request CIFS: add ONCE flag for cifs_dbg type cifs: Use ULL suffix for 64-bit constant SMB3: Log at least once if tree connect fails during reconnect cifs: smb2pdu: Fix potential NULL pointer dereference
Diffstat (limited to 'fs/cifs/smb2pdu.h')
-rw-r--r--fs/cifs/smb2pdu.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/fs/cifs/smb2pdu.h b/fs/cifs/smb2pdu.h
index 253e2c7c952f..6093e5142b2b 100644
--- a/fs/cifs/smb2pdu.h
+++ b/fs/cifs/smb2pdu.h
@@ -263,11 +263,19 @@ struct smb2_negotiate_req {
#define SMB2_NT_FIND 0x00100000
#define SMB2_LARGE_FILES 0x00200000
+struct smb2_neg_context {
+ __le16 ContextType;
+ __le16 DataLength;
+ __le32 Reserved;
+ /* Followed by array of data */
+} __packed;
+
#define SMB311_SALT_SIZE 32
/* Hash Algorithm Types */
#define SMB2_PREAUTH_INTEGRITY_SHA512 cpu_to_le16(0x0001)
#define SMB2_PREAUTH_HASH_SIZE 64
+#define MIN_PREAUTH_CTXT_DATA_LEN (SMB311_SALT_SIZE + 6)
struct smb2_preauth_neg_context {
__le16 ContextType; /* 1 */
__le16 DataLength;
@@ -282,6 +290,8 @@ struct smb2_preauth_neg_context {
#define SMB2_ENCRYPTION_AES128_CCM cpu_to_le16(0x0001)
#define SMB2_ENCRYPTION_AES128_GCM cpu_to_le16(0x0002)
+/* Min encrypt context data is one cipher so 2 bytes + 2 byte count field */
+#define MIN_ENCRYPT_CTXT_DATA_LEN 4
struct smb2_encryption_neg_context {
__le16 ContextType; /* 2 */
__le16 DataLength;