/* Unix SMB/CIFS implementation. 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 #define SMBD_NTLMSSP_NEG_FLAGS 0x000082b1 /* ALWAYS_SIGN|NEG_NTLM|NEG_LM|NEG_SEAL|NEG_SIGN|NEG_UNICODE */ /* NTLMSSP signature version */ #define NTLMSSP_SIGN_VERSION 0x01 /* NTLMSSP auth type */ #define NTLMSSP_AUTH_TYPE 0xa /* DCE-RPC standard identifiers to indicate signing or sealing of an RPC pipe */ #define RPC_PIPE_AUTH_SIGN_LEVEL 0x5 #define RPC_PIPE_AUTH_SEAL_LEVEL 0x6 /* Netlogon schannel auth type and level */ #define NETSEC_AUTH_TYPE 0x44 #define NETSEC_SIGN_SIGNATURE { 0x77, 0x00, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00 } #define NETSEC_SEAL_SIGNATURE { 0x77, 0x00, 0x7a, 0x00, 0xff, 0xff, 0x00, 0x00 } #define RPC_AUTH_NETSEC_SIGN_OR_SEAL_CHK_LEN 0x20 #define RPC_AUTH_NETSEC_SIGN_ONLY_CHK_LEN 0x18 /* The 7 here seems to be required to get Win2k not to downgrade us to NT4. Actually, anything other than 1ff would seem to do... */ #define NETLOGON_NEG_AUTH2_FLAGS 0x000701ff #define NETLOGON_NEG_SCHANNEL 0x40000000 #define NETLOGON_NEG_DOMAIN_TRUST_ACCOUNT 0x2010b000 enum netsec_direction { SENDER_IS_INITIATOR, SENDER_IS_ACCEPTOR }; /* Internal Flags to indicate what type of authentication on the pipe */ #define AUTH_PIPE_SIGN 0x0001 #define AUTH_PIPE_SEAL 0x0002 #define AUTH_PIPE_NTLMSSP 0x0004 #define AUTH_PIPE_NETSEC 0x0008 /* Maximum PDU fragment size. */ /* #define MAX_PDU_FRAG_LEN 0x1630 this is what wnt sets */ #define MAX_PDU_FRAG_LEN 0x10b8 /* this is what w2k sets */ /* RPC_IFACE */ typedef struct rpc_iface_info { struct uuid uuid; /* 16 bytes of rpc interface identification */ uint32 version; /* the interface version number */ } RPC_IFACE; #define RPC_IFACE_LEN (UUID_SIZE + 4) struct pipe_id_info { /* the names appear not to matter: the syntaxes _do_ matter */ const char *client_pipe; RPC_IFACE abstr_syntax; /* this one is the abstract syntax id */ const 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; /* 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 padding; uint8 reserved; /* padding */ uint32 auth_context; /* pointer */ } RPC_HDR_AUTH; #define RPC_HDR_AUTH_LEN 8 /* this is TEMPORARILY coded up as a specific structure */ /* this structure comes after the bind request */ /* RPC_AUTH_NETSEC_NEG */ typedef struct rpc_auth_netsec_neg_info { uint32 type1; /* Always zero ? */ uint32 type2; /* Types 0x3 and 0x13 seen. Check AcquireSecurityContext() docs.... */ fstring domain; /* calling workstations's domain */ fstring myname; /* calling workstation's name */ } RPC_AUTH_NETSEC_NEG; /* attached to the end of encrypted rpc requests and responses */ /* RPC_AUTH_NETSEC_CHK */ typedef struct rpc_auth_netsec_chk_info { uint8 sig [8]; /* 77 00 7a 00 ff ff 00 00 */ uint8 packet_digest[8]; /* checksum over the packet, MD5'ed with session key */ uint8 seq_num[8]; /* verifier, seq num */ uint8 confounder[8]; /* random 8-byte nonce */ } RPC_AUTH_NETSEC_CHK; struct netsec_auth_struct { uchar sess_key[16]; uint32 seq_num; int auth_flags; }; /* 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".. Ok, not quite anymore */ uint32 msg_type; /* NTLMSSP_MESSAGE_TYPE (1,2,3) and 5 for schannel */ } 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 */