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/*
Unix SMB/CIFS implementation.
SMB2 signing
Copyright (C) Stefan Metzmacher 2009
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _LIBCLI_SMB_SMB2_SIGNING_H_
#define _LIBCLI_SMB_SMB2_SIGNING_H_
#include <gnutls/gnutls.h>
#include "lib/util/data_blob.h"
#include "libcli/smb/smb_constants.h"
#include "libcli/util/ntstatus.h"
struct iovec;
struct smb2_signing_derivation {
DATA_BLOB label;
DATA_BLOB context;
};
struct smb2_signing_derivations {
struct smb2_signing_derivation __signing;
const struct smb2_signing_derivation *signing;
struct smb2_signing_derivation __cipher_c2s;
const struct smb2_signing_derivation *cipher_c2s;
struct smb2_signing_derivation __cipher_s2c;
const struct smb2_signing_derivation *cipher_s2c;
struct smb2_signing_derivation __application;
const struct smb2_signing_derivation *application;
};
void smb2_signing_derivations_fill_const_stack(struct smb2_signing_derivations *ds,
enum protocol_types protocol,
const DATA_BLOB preauth_hash);
struct smb2_signing_key {
DATA_BLOB blob;
uint16_t sign_algo_id;
union {
#ifdef SMB2_SIGNING_KEY_GNUTLS_TYPES
gnutls_hmac_hd_t hmac_hnd;
#endif
void *__hmac_hnd;
};
uint16_t cipher_algo_id;
union {
#ifdef SMB2_SIGNING_KEY_GNUTLS_TYPES
gnutls_aead_cipher_hd_t cipher_hnd;
#endif
void *__cipher_hnd;
};
};
NTSTATUS smb2_signing_key_copy(TALLOC_CTX *mem_ctx,
const struct smb2_signing_key *src,
struct smb2_signing_key **_dst);
NTSTATUS smb2_signing_key_sign_create(TALLOC_CTX *mem_ctx,
uint16_t sign_algo_id,
const DATA_BLOB *master_key,
const struct smb2_signing_derivation *d,
struct smb2_signing_key **_key);
NTSTATUS smb2_signing_key_cipher_create(TALLOC_CTX *mem_ctx,
uint16_t cipher_algo_id,
const DATA_BLOB *master_key,
const struct smb2_signing_derivation *d,
struct smb2_signing_key **_key);
bool smb2_signing_key_valid(const struct smb2_signing_key *key);
NTSTATUS smb2_signing_sign_pdu(struct smb2_signing_key *signing_key,
struct iovec *vector,
int count);
NTSTATUS smb2_signing_check_pdu(struct smb2_signing_key *signing_key,
const struct iovec *vector,
int count);
NTSTATUS smb2_signing_encrypt_pdu(struct smb2_signing_key *encryption_key,
struct iovec *vector,
int count);
NTSTATUS smb2_signing_decrypt_pdu(struct smb2_signing_key *decryption_key,
struct iovec *vector,
int count);
#endif /* _LIBCLI_SMB_SMB2_SIGNING_H_ */
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