164 lines
4.6 KiB
C
164 lines
4.6 KiB
C
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/**
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* FreeRDP: A Remote Desktop Protocol Client
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* NT LAN Manager Security Support Provider (NTLMSSP)
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*
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* Copyright 2011 Marc-Andre Moreau <marcandre.moreau@gmail.com>
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef __NTLMSSP_H
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#define __NTLMSSP_H
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#include "credssp.h"
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#include <freerdp/utils/debug.h>
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#include <freerdp/utils/unicode.h>
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struct _AV_PAIR
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{
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uint16 length;
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uint8* value;
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};
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typedef struct _AV_PAIR AV_PAIR;
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struct _AV_PAIRS
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{
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AV_PAIR NbComputerName;
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AV_PAIR NbDomainName;
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AV_PAIR DnsComputerName;
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AV_PAIR DnsDomainName;
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AV_PAIR DnsTreeName;
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AV_PAIR Timestamp;
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AV_PAIR Restrictions;
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AV_PAIR TargetName;
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AV_PAIR ChannelBindings;
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uint32 Flags;
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};
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typedef struct _AV_PAIRS AV_PAIRS;
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enum _AV_ID
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{
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MsvAvEOL,
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MsvAvNbComputerName,
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MsvAvNbDomainName,
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MsvAvDnsComputerName,
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MsvAvDnsDomainName,
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MsvAvDnsTreeName,
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MsvAvFlags,
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MsvAvTimestamp,
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MsvAvRestrictions,
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MsvAvTargetName,
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MsvChannelBindings
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};
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typedef enum _AV_ID AV_ID;
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enum _NTLMSSP_STATE
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{
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NTLMSSP_STATE_INITIAL,
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NTLMSSP_STATE_NEGOTIATE,
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NTLMSSP_STATE_CHALLENGE,
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NTLMSSP_STATE_AUTHENTICATE,
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NTLMSSP_STATE_FINAL
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};
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typedef enum _NTLMSSP_STATE NTLMSSP_STATE;
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struct _NTLMSSP
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{
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NTLMSSP_STATE state;
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DATABLOB password;
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DATABLOB username;
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DATABLOB domain;
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DATABLOB workstation;
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DATABLOB target_info;
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DATABLOB target_name;
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DATABLOB spn;
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UNICONV *uniconv;
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uint32 negotiate_flags;
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uint8 timestamp[8];
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uint8 server_challenge[8];
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uint8 client_challenge[8];
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uint8 session_base_key[16];
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uint8 key_exchange_key[16];
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uint8 random_session_key[16];
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uint8 exported_session_key[16];
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uint8 encrypted_random_session_key[16];
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uint8 client_signing_key[16];
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uint8 client_sealing_key[16];
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uint8 server_signing_key[16];
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uint8 server_sealing_key[16];
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uint8 message_integrity_check[16];
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DATABLOB nt_challenge_response;
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DATABLOB lm_challenge_response;
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DATABLOB negotiate_message;
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DATABLOB challenge_message;
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DATABLOB authenticate_message;
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CryptoRc4 send_rc4_seal;
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CryptoRc4 recv_rc4_seal;
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AV_PAIRS *av_pairs;
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int send_seq_num;
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int recv_seq_num;
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int ntlm_v2;
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};
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typedef struct _NTLMSSP NTLMSSP;
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void ntlmssp_set_username(NTLMSSP *ntlmssp, char* username);
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void ntlmssp_set_domain(NTLMSSP *ntlmssp, char* domain);
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void ntlmssp_set_password(NTLMSSP *ntlmssp, char* password);
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void ntlmssp_generate_client_challenge(NTLMSSP *ntlmssp);
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void ntlmssp_generate_key_exchange_key(NTLMSSP *ntlmssp);
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void ntlmssp_generate_random_session_key(NTLMSSP *ntlmssp);
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void ntlmssp_generate_exported_session_key(NTLMSSP *ntlmssp);
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void ntlmssp_encrypt_random_session_key(NTLMSSP *ntlmssp);
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void ntlmssp_generate_timestamp(NTLMSSP *ntlmssp);
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void ntlmssp_generate_client_signing_key(NTLMSSP *ntlmssp);
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void ntlmssp_generate_server_signing_key(NTLMSSP *ntlmssp);
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void ntlmssp_generate_client_sealing_key(NTLMSSP *ntlmssp);
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void ntlmssp_generate_server_sealing_key(NTLMSSP *ntlmssp);
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void ntlmssp_init_rc4_seal_states(NTLMSSP *ntlmssp);
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void ntlmssp_compute_lm_hash(char* password, char* hash);
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void ntlmssp_compute_ntlm_hash(DATABLOB* password, char* hash);
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void ntlmssp_compute_ntlm_v2_hash(NTLMSSP *ntlmssp, char* hash);
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void ntlmssp_compute_lm_response(char* password, char* challenge, char* response);
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void ntlmssp_compute_lm_v2_response(NTLMSSP *ntlmssp);
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void ntlmssp_compute_ntlm_v2_response(NTLMSSP *ntlmssp);
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void ntlmssp_populate_av_pairs(NTLMSSP *ntlmssp);
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void ntlmssp_input_av_pairs(NTLMSSP *ntlmssp, STREAM s);
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void ntlmssp_output_av_pairs(NTLMSSP *ntlmssp, STREAM s);
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void ntlmssp_free_av_pairs(NTLMSSP *ntlmssp);
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void ntlmssp_compute_message_integrity_check(NTLMSSP *ntlmssp);
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void ntlmssp_encrypt_message(NTLMSSP *ntlmssp, DATABLOB *msg, DATABLOB *encrypted_msg, uint8* signature);
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int ntlmssp_decrypt_message(NTLMSSP *ntlmssp, DATABLOB *encrypted_msg, DATABLOB *msg, uint8* signature);
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int ntlmssp_recv(NTLMSSP *ntlmssp, STREAM s);
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int ntlmssp_send(NTLMSSP *ntlmssp, STREAM s);
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NTLMSSP* ntlmssp_new();
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void ntlmssp_init(NTLMSSP *ntlmssp);
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void ntlmssp_free(NTLMSSP *ntlmssp);
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#ifdef WITH_DEBUG_NLA
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#define DEBUG_NLA(fmt, ...) DEBUG_CLASS(NLA, fmt, ## __VA_ARGS__)
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#else
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#define DEBUG_NLA(fmt, ...) DEBUG_NULL(fmt, ## __VA_ARGS__)
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#endif
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#endif /* __NTLMSSP_H */
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