Commit 0d481325 authored by Steve French's avatar Steve French
Browse files

smb3: Update POSIX negotiate context with POSIX ctxt GUID 



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

Signed-off-by: default avatarSteve French <stfrench@microsoft.com>
Reviewed-by: default avatarJeremy Allison <jra@samba.org>
parent cfe7e41f

fs/cifs/smb2pdu.c

+17 −0
Original line number Diff line number Diff line
@@ -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

fs/cifs/smb2pdu.h

+2 −2
Original line number Diff line number Diff line
@@ -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 {