source3/include/rpc_dce.h

   1 /*
   2    Unix SMB/CIFS implementation.
   3    SMB parameters and setup
   4    Copyright (C) Andrew Tridgell 1992-1997
   5    Copyright (C) Luke Kenneth Casson Leighton 1996-1997
   6    Copyright (C) Paul Ashton 1997
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 3 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20 */
  21
  22 #ifndef _DCE_RPC_H /* _DCE_RPC_H */
  23 #define _DCE_RPC_H
  24
  25 #define RPC_AUTH_SCHANNEL_SIGN_OR_SEAL_CHK_LEN  0x20
  26
  27 /* Maximum size of the signing data in a fragment. */
  28 #define RPC_MAX_SIGN_SIZE 0x38 /* 56 */
  29
  30 /* Maximum PDU fragment size. */
  31 /* #define MAX_PDU_FRAG_LEN 0x1630              this is what wnt sets */
  32 #define RPC_MAX_PDU_FRAG_LEN 0x10b8                     /* this is what w2k sets */
  33
  34 #define RPC_IFACE_LEN (UUID_SIZE + 4)
  35
  36 /* RPC_HDR - dce rpc header */
  37 typedef struct rpc_hdr_info {
  38         uint8  major; /* 5 - RPC major version */
  39         uint8  minor; /* 0 - RPC minor version */
  40         uint8  pkt_type; /* dcerpc_pkt_type - RPC response packet */
  41         uint8  flags; /* DCE/RPC flags */
  42         uint8  pack_type[4]; /* 0x1000 0000 - little-endian packed data representation */
  43         uint16 frag_len; /* fragment length - data size (bytes) inc header and tail. */
  44         uint16 auth_len; /* 0 - authentication length  */
  45         uint32 call_id; /* call identifier.  matches 12th uint32 of incoming RPC data. */
  46 } RPC_HDR;
  47
  48 #define RPC_HEADER_LEN 16
  49
  50 /* RPC_HDR_REQ - ms request rpc header */
  51 typedef struct rpc_hdr_req_info {
  52         uint32 alloc_hint;   /* allocation hint - data size (bytes) minus header and tail. */
  53         uint16 context_id;   /* presentation context identifier */
  54         uint16  opnum;       /* opnum */
  55 } RPC_HDR_REQ;
  56
  57 #define RPC_HDR_REQ_LEN 8
  58
  59 /* RPC_HDR_RESP - ms response rpc header */
  60 typedef struct rpc_hdr_resp_info {
  61         uint32 alloc_hint;   /* allocation hint - data size (bytes) minus header and tail. */
  62         uint16 context_id;   /* 0 - presentation context identifier */
  63         uint8  cancel_count; /* 0 - cancel count */
  64         uint8  reserved;     /* 0 - reserved. */
  65 } RPC_HDR_RESP;
  66
  67 #define RPC_HDR_RESP_LEN 8
  68
  69 /* RPC_HDR_FAULT - fault rpc header */
  70 typedef struct rpc_hdr_fault_info {
  71         NTSTATUS status;
  72         uint32 reserved; /* 0x0000 0000 */
  73 } RPC_HDR_FAULT;
  74
  75 #define RPC_HDR_FAULT_LEN 8
  76
  77 /* this seems to be the same string name depending on the name of the pipe,
  78  * but is more likely to be linked to the interface name
  79  * "srvsvc", "\\PIPE\\ntsvcs"
  80  * "samr", "\\PIPE\\lsass"
  81  * "wkssvc", "\\PIPE\\wksvcs"
  82  * "NETLOGON", "\\PIPE\\NETLOGON"
  83  */
  84 /* RPC_ADDR_STR */
  85 typedef struct rpc_addr_info {
  86         uint16 len;   /* length of the string including null terminator */
  87         fstring str; /* the string above in single byte, null terminated form */
  88 } RPC_ADDR_STR;
  89
  90 /* RPC_HDR_BBA - bind acknowledge, and alter context response. */
  91 typedef struct rpc_hdr_bba_info {
  92         uint16 max_tsize;       /* maximum transmission fragment size (0x1630) */
  93         uint16 max_rsize;       /* max receive fragment size (0x1630) */
  94         uint32 assoc_gid;       /* associated group id (0x0) */
  95 } RPC_HDR_BBA;
  96
  97 #define RPC_HDR_BBA_LEN 8
  98
  99 /* RPC_HDR_AUTH */
 100 typedef struct rpc_hdr_auth_info {
 101         uint8 auth_type; /* See XXX_AUTH_TYPE above. */
 102         uint8 auth_level; /* See RPC_PIPE_AUTH_XXX_LEVEL above. */
 103         uint8 auth_pad_len;
 104         uint8 auth_reserved;
 105         uint32 auth_context_id;
 106 } RPC_HDR_AUTH;
 107
 108 #define RPC_HDR_AUTH_LEN 8
 109
 110 typedef struct rpc_context {
 111         uint16 context_id;              /* presentation context identifier. */
 112         uint8 num_transfer_syntaxes;    /* the number of syntaxes */
 113         struct ndr_syntax_id abstract;  /* num and vers. of interface client is using */
 114         struct ndr_syntax_id *transfer; /* Array of transfer interfaces. */
 115 } RPC_CONTEXT;
 116
 117 /* RPC_BIND_REQ - ms req bind */
 118 typedef struct rpc_bind_req_info {
 119         RPC_HDR_BBA bba;
 120         uint8 num_contexts;    /* the number of contexts */
 121         RPC_CONTEXT *rpc_context;
 122 } RPC_HDR_RB;
 123
 124 /*
 125  * The following length is 8 bytes RPC_HDR_BBA_LEN +
 126  * 4 bytes size of context count +
 127  * (context_count * (4 bytes of context_id, size of transfer syntax count + RPC_IFACE_LEN bytes +
 128  *                    (transfer_syntax_count * RPC_IFACE_LEN bytes)))
 129  */
 130
 131 #define RPC_HDR_RB_LEN(rpc_hdr_rb) (RPC_HDR_BBA_LEN + 4 + \
 132         ((rpc_hdr_rb)->num_contexts) * (4 + RPC_IFACE_LEN + (((rpc_hdr_rb)->rpc_context->num_transfer_syntaxes)*RPC_IFACE_LEN)))
 133
 134 /* RPC_RESULTS - can only cope with one reason, right now... */
 135 typedef struct rpc_results_info {
 136         /* uint8[] # 4-byte alignment padding, against SMB header */
 137
 138         uint8 num_results; /* the number of results (0x01) */
 139
 140         /* uint8[] # 4-byte alignment padding, against SMB header */
 141
 142         uint16 result; /* result (0x00 = accept) */
 143         uint16 reason; /* reason (0x00 = no reason specified) */
 144 } RPC_RESULTS;
 145
 146 /* RPC_HDR_BA */
 147 typedef struct rpc_hdr_ba_info {
 148         RPC_HDR_BBA bba;
 149
 150         RPC_ADDR_STR addr    ;  /* the secondary address string, as described earlier */
 151         RPC_RESULTS  res     ; /* results and reasons */
 152         struct ndr_syntax_id transfer; /* the transfer syntax from the request */
 153 } RPC_HDR_BA;
 154
 155 #endif /* _DCE_RPC_H */