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/*
* HttpAuth
*
* Copyright (C) 2004 Nate Nielsen
*
* 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 2 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, write to the
* Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __NTLMSSP_H__
#define __NTLMSSP_H__
#define MAX_HOSTLEN 32
#define MAX_DOMLEN 32
#define MAX_USERLEN 32
#define RESP_LEN 24
#define NONCE_LEN 8
/* fhz, 01-10-15 : borrowed from samba code */
/* NTLMSSP negotiation flags */
#define NTLMSSP_NEGOTIATE_UNICODE 0x00000001
#define NTLMSSP_NEGOTIATE_OEM 0x00000002
#define NTLMSSP_REQUEST_TARGET 0x00000004
#define NTLMSSP_NEGOTIATE_SIGN 0x00000010
#define NTLMSSP_NEGOTIATE_SEAL 0x00000020
#define NTLMSSP_NEGOTIATE_LM_KEY 0x00000080
#define NTLMSSP_NEGOTIATE_NTLM 0x00000200
#define NTLMSSP_NEGOTIATE_00001000 0x00001000
#define NTLMSSP_NEGOTIATE_00002000 0x00002000
#define NTLMSSP_NEGOTIATE_ALWAYS_SIGN 0x00008000
#define NTLMSSP_TARGET_TYPE_DOMAIN 0x00010000
#define NTLMSSP_TARGET_TYPE_SERVER 0x00020000
#define NTLMSSP_NEGOTIATE_NTLM2 0x00080000
#define NTLMSSP_NEGOTIATE_TARGET_INFO 0x00800000
#define NTLMSSP_NEGOTIATE_128 0x20000000
#define NTLMSSP_NEGOTIATE_KEY_EXCH 0x40000000
#define SMBD_NTLMSSP_NEG_FLAGS 0x000082b1
#define NTLM_NTLMSSP_NEG_FLAGS 0x00008206
/* 8201 8207 */
#define LEN_NTLMSSP_FLAGS 4
#define OFFSET_MSG1_NTLMSSP_FLAGS 12
struct ntlm_msg1 {
unsigned char protocol[8];
unsigned char type; /* 1 */
unsigned char zero1[3];
unsigned char flags[2];
unsigned char zero2[2];
unsigned char dom_len[4];
unsigned char dom_off[4];
unsigned char host_len[4];
unsigned char host_off[4];
#if 0
unsigned char data[0];
#endif
} __attribute__((packed));
struct ntlm_msg2 {
unsigned char protocol[8];
unsigned char type; /* 2 */
unsigned char zero1[7];
unsigned char msg_len[4];
unsigned char flags[2];
unsigned char zero2[2];
unsigned char nonce[8];
unsigned char zero3[8];
} __attribute__((packed));
struct ntlm_msg3 {
unsigned char protocol[8];
unsigned char type; /* 3 */
unsigned char zero1[3];
unsigned char lm_len[4];
unsigned char lm_off[4];
unsigned char nt_len[4];
unsigned char nt_off[4];
unsigned char dom_len[4];
unsigned char dom_off[4];
unsigned char user_len[4];
unsigned char user_off[4];
unsigned char host_len[4];
unsigned char host_off[4];
unsigned char msg_len[4]; /* Win9x: data begins here! */
#if 0
unsigned char data[0];
#endif
} __attribute__((packed));
struct ntlm_msg2_win9x {
unsigned char protocol[8];
unsigned char type; /* 2 */
unsigned char zero1[3];
unsigned char dom_len1[2];
unsigned char dom_len2[2];
unsigned char dom_off[4];
unsigned char flags[2];
unsigned char zero2[2];
unsigned char nonce[8];
unsigned char zero3[8];
unsigned char zero4[4];
unsigned char msg_len[4];
unsigned char dom[MAX_DOMLEN];
} __attribute__((packed));
/* size without dom[] : */
#define NTLM_MSG2_WIN9X_FIXED_SIZE (sizeof(struct ntlm_msg2_win9x)-MAX_DOMLEN)
typedef struct ntlmssp_info {
int msg_type;
unsigned char user[MAX_USERLEN + 1];
unsigned char host[MAX_HOSTLEN + 1];
unsigned char domain[MAX_DOMLEN + 1];
unsigned char lm[RESP_LEN];
unsigned char nt[RESP_LEN];
} ntlmssp_info_rec;
int ntlmssp_decode_msg(struct ntlmssp_info *info, unsigned char *raw_msg, unsigned msglen, unsigned *ntlmssp_flags);
int ntlmssp_encode_msg2(unsigned char *nonce, struct ntlm_msg2 *msg);
int ntlmssp_encode_msg2_win9x(unsigned char *nonce, struct ntlm_msg2_win9x *msg,char *domainname,unsigned ntlmssp_flags);
#define NTV_NO_ERROR 0
#define NTV_SERVER_ERROR 1
#define NTV_PROTOCOL_ERROR 2
#define NTV_LOGON_ERROR 3
int ntlmssp_validuser(const char* username, const char* password, const char* server, const char* backup, const char* domain);
void* ntlmssp_connect(const char* server, const char* backup, const char* domain, char* nonce);
int ntlmssp_auth(void* handle, const char* user, const char* password, int flag);
void ntlmssp_disconnect(void* handle);
#endif /* __NTLMSSP_H__ */
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