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/*
Unix SMB/Netbios implementation.
Version 1.9.
SMB parameters and setup
Copyright (C) Andrew Tridgell 1992-1997
Copyright (C) Luke Kenneth Casson Leighton 1996-1997
Copyright (C) Paul Ashton 1997
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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef _DCE_RPC_H /* _DCE_RPC_H */
#define _DCE_RPC_H
#include "rpc_misc.h" /* this only pulls in STRHDR */
/* DCE/RPC packet types */
enum RPC_PKT_TYPE
{
RPC_REQUEST = 0x00,
RPC_RESPONSE = 0x02,
RPC_FAULT = 0x03,
RPC_BIND = 0x0B,
RPC_BINDACK = 0x0C,
RPC_BINDNACK = 0x0D,
RPC_ALTCONT = 0x0E,
RPC_ALTCONTRESP = 0x0F,
RPC_BINDRESP = 0x10 /* not the real name! this is undocumented! */
};
/* DCE/RPC flags */
#define RPC_FLG_FIRST 0x01
#define RPC_FLG_LAST 0x02
#define RPC_FLG_NOCALL 0x20
/* NTLMSSP message types */
enum NTLM_MESSAGE_TYPE
{
NTLMSSP_NEGOTIATE = 1,
NTLMSSP_CHALLENGE = 2,
NTLMSSP_AUTH = 3,
NTLMSSP_UNKNOWN = 4
};
/* 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_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
/* NTLMSSP signature version */
#define NTLMSSP_SIGN_VERSION 0x01
/* NTLMSSP auth type and level. */
#define NTLMSSP_AUTH_TYPE 0xa
#define NTLMSSP_AUTH_LEVEL 0x6
/* Maximum PDU fragment size. */
#define MAX_PDU_FRAG_LEN 0x1630
/*
* Actual structure of a DCE UUID
*/
typedef struct rpc_uuid
{
uint32 time_low;
uint16 time_mid;
uint16 time_hi_and_version;
uint8 remaining[8];
} RPC_UUID;
#define RPC_UUID_LEN 16
/* RPC_IFACE */
typedef struct rpc_iface_info
{
RPC_UUID uuid; /* 16 bytes of rpc interface identification */
uint32 version; /* the interface version number */
} RPC_IFACE;
#define RPC_IFACE_LEN (RPC_UUID_LEN + 4)
struct pipe_id_info
{
/* the names appear not to matter: the syntaxes _do_ matter */
char *client_pipe;
RPC_IFACE abstr_syntax; /* this one is the abstract syntax id */
char *server_pipe; /* this one is the secondary syntax name */
RPC_IFACE trans_syntax; /* this one is the primary syntax id */
};
/* RPC_HDR - dce rpc header */
typedef struct rpc_hdr_info
{
uint8 major; /* 5 - RPC major version */
uint8 minor; /* 0 - RPC minor version */
uint8 pkt_type; /* RPC_PKT_TYPE - RPC response packet */
uint8 flags; /* DCE/RPC flags */
uint8 pack_type[4]; /* 0x1000 0000 - little-endian packed data representation */
uint16 frag_len; /* fragment length - data size (bytes) inc header and tail. */
uint16 auth_len; /* 0 - authentication length */
uint32 call_id; /* call identifier. matches 12th uint32 of incoming RPC data. */
} RPC_HDR;
#define RPC_HEADER_LEN 16
/* RPC_HDR_REQ - ms request rpc header */
typedef struct rpc_hdr_req_info
{
uint32 alloc_hint; /* allocation hint - data size (bytes) minus header and tail. */
uint16 context_id; /* 0 - presentation context identifier */
uint16 opnum; /* opnum */
} RPC_HDR_REQ;
#define RPC_HDR_REQ_LEN 8
/* RPC_HDR_RESP - ms response rpc header */
typedef struct rpc_hdr_resp_info
{
uint32 alloc_hint; /* allocation hint - data size (bytes) minus header and tail. */
uint16 context_id; /* 0 - presentation context identifier */
uint8 cancel_count; /* 0 - cancel count */
uint8 reserved; /* 0 - reserved. */
} RPC_HDR_RESP;
#define RPC_HDR_RESP_LEN 8
/* RPC_HDR_FAULT - fault rpc header */
typedef struct rpc_hdr_fault_info
{
NTSTATUS status;
uint32 reserved; /* 0x0000 0000 */
} RPC_HDR_FAULT;
#define RPC_HDR_FAULT_LEN 8
/* this seems to be the same string name depending on the name of the pipe,
* but is more likely to be linked to the interface name
* "srvsvc", "\\PIPE\\ntsvcs"
* "samr", "\\PIPE\\lsass"
* "wkssvc", "\\PIPE\\wksvcs"
* "NETLOGON", "\\PIPE\\NETLOGON"
*/
/* RPC_ADDR_STR */
typedef struct rpc_addr_info
{
uint16 len; /* length of the string including null terminator */
fstring str; /* the string above in single byte, null terminated form */
} RPC_ADDR_STR;
/* RPC_HDR_BBA */
typedef struct rpc_hdr_bba_info
{
uint16 max_tsize; /* maximum transmission fragment size (0x1630) */
uint16 max_rsize; /* max receive fragment size (0x1630) */
uint32 assoc_gid; /* associated group id (0x0) */
} RPC_HDR_BBA;
#define RPC_HDR_BBA_LEN 8
/* RPC_HDR_AUTHA */
typedef struct rpc_hdr_autha_info
{
uint16 max_tsize; /* maximum transmission fragment size (0x1630) */
uint16 max_rsize; /* max receive fragment size (0x1630) */
uint8 auth_type; /* 0x0a */
uint8 auth_level; /* 0x06 */
uint8 stub_type_len; /* don't know */
uint8 padding; /* padding */
uint32 unknown; /* 0x0014a0c0 */
} RPC_HDR_AUTHA;
#define RPC_HDR_AUTHA_LEN 12
/* RPC_HDR_AUTH */
typedef struct rpc_hdr_auth_info
{
uint8 auth_type; /* 0x0a */
uint8 auth_level; /* 0x06 */
uint8 stub_type_len; /* don't know */
uint8 padding; /* padding */
uint32 unknown; /* pointer */
} RPC_HDR_AUTH;
#define RPC_HDR_AUTH_LEN 8
/* RPC_BIND_REQ - ms req bind */
typedef struct rpc_bind_req_info
{
RPC_HDR_BBA bba;
uint32 num_elements; /* the number of elements (0x1) */
uint16 context_id; /* presentation context identifier (0x0) */
uint8 num_syntaxes; /* the number of syntaxes (has always been 1?)(0x1) */
RPC_IFACE abstract; /* num and vers. of interface client is using */
RPC_IFACE transfer; /* num and vers. of interface to use for replies */
} RPC_HDR_RB;
/*
* The following length is 8 bytes RPC_HDR_BBA_LEN, 8 bytes internals
* (with 3 bytes padding), + 2 x RPC_IFACE_LEN bytes for RPC_IFACE structs.
*/
#define RPC_HDR_RB_LEN (RPC_HDR_BBA_LEN + 8 + (2*RPC_IFACE_LEN))
/* RPC_RESULTS - can only cope with one reason, right now... */
typedef struct rpc_results_info
{
/* uint8[] # 4-byte alignment padding, against SMB header */
uint8 num_results; /* the number of results (0x01) */
/* uint8[] # 4-byte alignment padding, against SMB header */
uint16 result; /* result (0x00 = accept) */
uint16 reason; /* reason (0x00 = no reason specified) */
} RPC_RESULTS;
/* RPC_HDR_BA */
typedef struct rpc_hdr_ba_info
{
RPC_HDR_BBA bba;
RPC_ADDR_STR addr ; /* the secondary address string, as described earlier */
RPC_RESULTS res ; /* results and reasons */
RPC_IFACE transfer; /* the transfer syntax from the request */
} RPC_HDR_BA;
/* RPC_AUTH_VERIFIER */
typedef struct rpc_auth_verif_info
{
fstring signature; /* "NTLMSSP" */
uint32 msg_type; /* NTLMSSP_MESSAGE_TYPE (1,2,3) */
} RPC_AUTH_VERIFIER;
/* this is TEMPORARILY coded up as a specific structure */
/* this structure comes after the bind request */
/* RPC_AUTH_NTLMSSP_NEG */
typedef struct rpc_auth_ntlmssp_neg_info
{
uint32 neg_flgs; /* 0x0000 b2b3 */
STRHDR hdr_myname; /* offset is against START of this structure */
STRHDR hdr_domain; /* offset is against START of this structure */
fstring myname; /* calling workstation's name */
fstring domain; /* calling workstations's domain */
} RPC_AUTH_NTLMSSP_NEG;
/* this is TEMPORARILY coded up as a specific structure */
/* this structure comes after the bind acknowledgement */
/* RPC_AUTH_NTLMSSP_CHAL */
typedef struct rpc_auth_ntlmssp_chal_info
{
uint32 unknown_1; /* 0x0000 0000 */
uint32 unknown_2; /* 0x0000 0028 */
uint32 neg_flags; /* 0x0000 82b1 */
uint8 challenge[8]; /* ntlm challenge */
uint8 reserved [8]; /* zeros */
} RPC_AUTH_NTLMSSP_CHAL;
/* RPC_AUTH_NTLMSSP_RESP */
typedef struct rpc_auth_ntlmssp_resp_info
{
STRHDR hdr_lm_resp; /* 24 byte response */
STRHDR hdr_nt_resp; /* 24 byte response */
STRHDR hdr_domain;
STRHDR hdr_usr;
STRHDR hdr_wks;
STRHDR hdr_sess_key; /* NULL unless negotiated */
uint32 neg_flags; /* 0x0000 82b1 */
fstring sess_key;
fstring wks;
fstring user;
fstring domain;
fstring nt_resp;
fstring lm_resp;
} RPC_AUTH_NTLMSSP_RESP;
/* attached to the end of encrypted rpc requests and responses */
/* RPC_AUTH_NTLMSSP_CHK */
typedef struct rpc_auth_ntlmssp_chk_info
{
uint32 ver; /* 0x0000 0001 */
uint32 reserved;
uint32 crc32; /* checksum using 0xEDB8 8320 as a polynomial */
uint32 seq_num;
} RPC_AUTH_NTLMSSP_CHK;
#define RPC_AUTH_NTLMSSP_CHK_LEN 16
#endif /* _DCE_RPC_H */
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