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feb36dbebf
Since memcmp_const_time() doesn't act as an exact replacement for memcmp(), and its return value is only ever compared with zero, simplify it and emphasize the intention of checking equality by returning a bool instead. Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz> Reviewed-by: Andrew Bartlett <abartlet@samba.org>
135 lines
3.9 KiB
C
135 lines
3.9 KiB
C
/*
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Unix SMB/Netbios implementation.
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NTLMSSP ndr functions
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Copyright (C) Guenther Deschner 2009
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "includes.h"
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#include "../librpc/gen_ndr/ndr_ntlmssp.h"
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#include "ntlmssp_ndr.h"
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#define NTLMSSP_PULL_MESSAGE(type, blob, mem_ctx, r) \
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do { \
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enum ndr_err_code __ndr_err; \
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ZERO_STRUCTP(r); /* in order to deal with unset neg flags */\
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__ndr_err = ndr_pull_struct_blob(blob, mem_ctx, r, \
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(ndr_pull_flags_fn_t)ndr_pull_ ##type); \
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if (!NDR_ERR_CODE_IS_SUCCESS(__ndr_err)) { \
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return ndr_map_error2ntstatus(__ndr_err); \
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} \
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if (!mem_equal_const_time(r->Signature, "NTLMSSP\0", 8)) { \
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return NT_STATUS_INVALID_PARAMETER; \
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} \
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return NT_STATUS_OK; \
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} while(0);
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#define NTLMSSP_PUSH_MESSAGE(type, blob, mem_ctx, r) \
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do { \
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enum ndr_err_code __ndr_err; \
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__ndr_err = ndr_push_struct_blob(blob, mem_ctx, r, \
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(ndr_push_flags_fn_t)ndr_push_ ##type); \
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if (!NDR_ERR_CODE_IS_SUCCESS(__ndr_err)) { \
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return ndr_map_error2ntstatus(__ndr_err); \
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} \
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return NT_STATUS_OK; \
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} while(0);
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/**
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* Pull NTLMSSP NEGOTIATE_MESSAGE struct from a blob
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* @param blob The plain packet blob
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* @param mem_ctx A talloc context
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* @param r Pointer to a NTLMSSP NEGOTIATE_MESSAGE structure
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*/
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NTSTATUS ntlmssp_pull_NEGOTIATE_MESSAGE(const DATA_BLOB *blob,
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TALLOC_CTX *mem_ctx,
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struct NEGOTIATE_MESSAGE *r)
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{
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NTLMSSP_PULL_MESSAGE(NEGOTIATE_MESSAGE, blob, mem_ctx, r);
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}
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/**
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* Pull NTLMSSP CHALLENGE_MESSAGE struct from a blob
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* @param blob The plain packet blob
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* @param mem_ctx A talloc context
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* @param r Pointer to a NTLMSSP CHALLENGE_MESSAGE structure
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*/
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NTSTATUS ntlmssp_pull_CHALLENGE_MESSAGE(const DATA_BLOB *blob,
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TALLOC_CTX *mem_ctx,
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struct CHALLENGE_MESSAGE *r)
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{
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NTLMSSP_PULL_MESSAGE(CHALLENGE_MESSAGE, blob, mem_ctx, r);
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}
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/**
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* Pull NTLMSSP AUTHENTICATE_MESSAGE struct from a blob
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* @param blob The plain packet blob
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* @param mem_ctx A talloc context
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* @param r Pointer to a NTLMSSP AUTHENTICATE_MESSAGE structure
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*/
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NTSTATUS ntlmssp_pull_AUTHENTICATE_MESSAGE(const DATA_BLOB *blob,
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TALLOC_CTX *mem_ctx,
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struct AUTHENTICATE_MESSAGE *r)
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{
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NTLMSSP_PULL_MESSAGE(AUTHENTICATE_MESSAGE, blob, mem_ctx, r);
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}
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/**
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* Push NTLMSSP NEGOTIATE_MESSAGE struct into a blob
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* @param blob The plain packet blob
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* @param mem_ctx A talloc context
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* @param r Pointer to a NTLMSSP NEGOTIATE_MESSAGE structure
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*/
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NTSTATUS ntlmssp_push_NEGOTIATE_MESSAGE(DATA_BLOB *blob,
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TALLOC_CTX *mem_ctx,
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const struct NEGOTIATE_MESSAGE *r)
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{
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NTLMSSP_PUSH_MESSAGE(NEGOTIATE_MESSAGE, blob, mem_ctx, r);
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}
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/**
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* Push NTLMSSP CHALLENGE_MESSAGE struct into a blob
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* @param blob The plain packet blob
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* @param mem_ctx A talloc context
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* @param r Pointer to a NTLMSSP CHALLENGE_MESSAGE structure
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*/
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NTSTATUS ntlmssp_push_CHALLENGE_MESSAGE(DATA_BLOB *blob,
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TALLOC_CTX *mem_ctx,
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const struct CHALLENGE_MESSAGE *r)
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{
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NTLMSSP_PUSH_MESSAGE(CHALLENGE_MESSAGE, blob, mem_ctx, r);
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}
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/**
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* Push NTLMSSP AUTHENTICATE_MESSAGE struct into a blob
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* @param blob The plain packet blob
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* @param mem_ctx A talloc context
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* @param r Pointer to a NTLMSSP AUTHENTICATE_MESSAGE structure
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*/
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NTSTATUS ntlmssp_push_AUTHENTICATE_MESSAGE(DATA_BLOB *blob,
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TALLOC_CTX *mem_ctx,
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const struct AUTHENTICATE_MESSAGE *r)
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{
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NTLMSSP_PUSH_MESSAGE(AUTHENTICATE_MESSAGE, blob, mem_ctx, r);
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}
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