/* 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 /* DCE/RPC packet types */ enum RPC_PKT_TYPE { RPC_REQUEST = 0x00, /* Ordinary request. */ RPC_PING = 0x01, /* Connectionless is server alive ? */ RPC_RESPONSE = 0x02, /* Ordinary reply. */ RPC_FAULT = 0x03, /* Fault in processing of call. */ RPC_WORKING = 0x04, /* Connectionless reply to a ping when server busy. */ RPC_NOCALL = 0x05, /* Connectionless reply to a ping when server has lost part of clients call. */ RPC_REJECT = 0x06, /* Refuse a request with a code. */ RPC_ACK = 0x07, /* Connectionless client to server code. */ RPC_CL_CANCEL= 0x08, /* Connectionless cancel. */ RPC_FACK = 0x09, /* Connectionless fragment ack. Both client and server send. */ RPC_CANCEL_ACK = 0x0A, /* Server ACK to client cancel request. */ RPC_BIND = 0x0B, /* Bind to interface. */ RPC_BINDACK = 0x0C, /* Server ack of bind. */ RPC_BINDNACK = 0x0D, /* Server nack of bind. */ RPC_ALTCONT = 0x0E, /* Alter auth. */ RPC_ALTCONTRESP = 0x0F, /* Reply to alter auth. */ RPC_AUTH3 = 0x10, /* not the real name! this is undocumented! */ RPC_SHUTDOWN = 0x11, /* Server to client request to shutdown. */ RPC_CO_CANCEL= 0x12, /* Connection-oriented cancel request. */ RPC_ORPHANED = 0x13 /* Client telling server it's aborting a partially sent request or telling server to stop sending replies. */ }; /* 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 /* DCE RPC auth types - extended by Microsoft. */ #define RPC_ANONYMOUS_AUTH_TYPE 0 #define RPC_AUTH_TYPE_KRB5_1 1 #define RPC_SPNEGO_AUTH_TYPE 9 #define RPC_NTLMSSP_AUTH_TYPE 10 #define RPC_KRB5_AUTH_TYPE 16 /* Not yet implemented. */ #define RPC_SCHANNEL_AUTH_TYPE 68 /* 0x44 */ /* DCE-RPC standard identifiers to indicate signing or sealing of an RPC pipe */ #define RPC_AUTH_LEVEL_NONE 1 #define RPC_AUTH_LEVEL_CONNECT 2 #define RPC_AUTH_LEVEL_CALL 3 #define RPC_AUTH_LEVEL_PACKET 4 #define RPC_AUTH_LEVEL_INTEGRITY 5 #define RPC_AUTH_LEVEL_PRIVACY 6 #if 0 #define RPC_PIPE_AUTH_SIGN_LEVEL 0x5 #define RPC_PIPE_AUTH_SEAL_LEVEL 0x6 #endif #define DCERPC_FAULT_OP_RNG_ERROR 0x1c010002 #define DCERPC_FAULT_UNK_IF 0x1c010003 #define DCERPC_FAULT_INVALID_TAG 0x1c000006 #define DCERPC_FAULT_CONTEXT_MISMATCH 0x1c00001a #define DCERPC_FAULT_OTHER 0x00000001 #define DCERPC_FAULT_ACCESS_DENIED 0x00000005 #define DCERPC_FAULT_CANT_PERFORM 0x000006d8 #define DCERPC_FAULT_NDR 0x000006f7 /* Netlogon schannel auth type and level */ #define SCHANNEL_SIGN_SIGNATURE { 0x77, 0x00, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00 } #define SCHANNEL_SEAL_SIGNATURE { 0x77, 0x00, 0x7a, 0x00, 0xff, 0xff, 0x00, 0x00 } #define RPC_AUTH_SCHANNEL_SIGN_OR_SEAL_CHK_LEN 0x20 #define RPC_AUTH_SCHANNEL_SIGN_ONLY_CHK_LEN 0x18 #define NETLOGON_NEG_ARCFOUR 0x00000004 #define NETLOGON_NEG_128BIT 0x00004000 #define NETLOGON_NEG_SCHANNEL 0x40000000 /* 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_DOMAIN_TRUST_ACCOUNT 0x2010b000 /* these are the flags that ADS clients use */ #define NETLOGON_NEG_AUTH2_ADS_FLAGS (0x200fbffb | NETLOGON_NEG_ARCFOUR | NETLOGON_NEG_128BIT | NETLOGON_NEG_SCHANNEL) #define NETLOGON_NEG_SELECT_AUTH2_FLAGS ((lp_security() == SEC_ADS) ? NETLOGON_NEG_AUTH2_ADS_FLAGS : NETLOGON_NEG_AUTH2_FLAGS) enum schannel_direction { SENDER_IS_INITIATOR, SENDER_IS_ACCEPTOR }; /* Maximum size of the signing data in a fragment. */ #define RPC_MAX_SIGN_SIZE 0x20 /* 32 */ /* Maximum PDU fragment size. */ /* #define MAX_PDU_FRAG_LEN 0x1630 this is what wnt sets */ #define RPC_MAX_PDU_FRAG_LEN 0x10b8 /* this is what w2k sets */ /* RPC_IFACE */ typedef struct rpc_iface_info { struct GUID 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 - bind acknowledge, and alter context response. */ 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_AUTH */ typedef struct rpc_hdr_auth_info { uint8 auth_type; /* See XXX_AUTH_TYPE above. */ uint8 auth_level; /* See RPC_PIPE_AUTH_XXX_LEVEL above. */ uint8 auth_pad_len; uint8 auth_reserved; uint32 auth_context_id; } 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_SCHANNEL_NEG */ typedef struct rpc_auth_schannel_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_SCHANNEL_NEG; /* attached to the end of encrypted rpc requests and responses */ /* RPC_AUTH_SCHANNEL_CHK */ typedef struct rpc_auth_schannel_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_SCHANNEL_CHK; typedef struct rpc_context { uint16 context_id; /* presentation context identifier. */ uint8 num_transfer_syntaxes; /* the number of syntaxes */ RPC_IFACE abstract; /* num and vers. of interface client is using */ RPC_IFACE *transfer; /* Array of transfer interfaces. */ } RPC_CONTEXT; /* RPC_BIND_REQ - ms req bind */ typedef struct rpc_bind_req_info { RPC_HDR_BBA bba; uint8 num_contexts; /* the number of contexts */ RPC_CONTEXT *rpc_context; } RPC_HDR_RB; /* * The following length is 8 bytes RPC_HDR_BBA_LEN + * 4 bytes size of context count + * (context_count * (4 bytes of context_id, size of transfer syntax count + RPC_IFACE_LEN bytes + * (transfer_syntax_count * RPC_IFACE_LEN bytes))) */ #define RPC_HDR_RB_LEN(rpc_hdr_rb) (RPC_HDR_BBA_LEN + 4 + \ ((rpc_hdr_rb)->num_contexts) * (4 + RPC_IFACE_LEN + (((rpc_hdr_rb)->rpc_context->num_transfer_syntaxes)*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; #endif /* _DCE_RPC_H */