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smb3: Update POSIX negotiate context with POSIX ctxt GUID

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POSIX negotiate context now includes the GUID specifying
which POSIX open context we support.

Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Jeremy Allison <jra@samba.org>
This commit is contained in:
Steve French 2019-02-24 17:56:33 -06:00
parent cfe7e41f79
commit 0d481325a9
2 changed files with 19 additions and 2 deletions
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17
fs/cifs/smb2pdu.c
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@ -490,6 +490,23 @@ build_posix_ctxt(struct smb2_posix_neg_context *pneg_ctxt)
{
pneg_ctxt->ContextType = SMB2_POSIX_EXTENSIONS_AVAILABLE;
pneg_ctxt->DataLength = cpu_to_le16(POSIX_CTXT_DATA_LEN);
/* SMB2_CREATE_TAG_POSIX is "0x93AD25509CB411E7B42383DE968BCD7C" */
pneg_ctxt->Name[0] = 0x93;
pneg_ctxt->Name[1] = 0xAD;
pneg_ctxt->Name[2] = 0x25;
pneg_ctxt->Name[3] = 0x50;
pneg_ctxt->Name[4] = 0x9C;
pneg_ctxt->Name[5] = 0xB4;
pneg_ctxt->Name[6] = 0x11;
pneg_ctxt->Name[7] = 0xE7;
pneg_ctxt->Name[8] = 0xB4;
pneg_ctxt->Name[9] = 0x23;
pneg_ctxt->Name[10] = 0x83;
pneg_ctxt->Name[11] = 0xDE;
pneg_ctxt->Name[12] = 0x96;
pneg_ctxt->Name[13] = 0x8B;
pneg_ctxt->Name[14] = 0xCD;
pneg_ctxt->Name[15] = 0x7C;
}
static void

4
fs/cifs/smb2pdu.h
View File

@ -288,12 +288,12 @@ struct smb2_encryption_neg_context {
__le16 Ciphers[1]; /* Ciphers[0] since only one used now */
} __packed;
#define POSIX_CTXT_DATA_LEN 8
#define POSIX_CTXT_DATA_LEN 16
struct smb2_posix_neg_context {
__le16 ContextType; /* 0x100 */
__le16 DataLength;
__le32 Reserved;
__le64 Reserved1; /* In case needed for future (eg version or caps) */
__u8 Name[16]; /* POSIX ctxt GUID 93AD25509CB411E7B42383DE968BCD7C */
} __packed;
struct smb2_negotiate_rsp {