source3/include/ntdomain.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    Copyright (C) Jeremy Allison 2000-2004
   8
   9    This program is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation; either version 3 of the License, or
  12    (at your option) any later version.
  13
  14    This program is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  21 */
  22
  23 #ifndef _NT_DOMAIN_H /* _NT_DOMAIN_H */
  24 #define _NT_DOMAIN_H
  25
  26 /*
  27  * A bunch of stuff that was put into smb.h
  28  * in the NTDOM branch - it didn't belong there.
  29  */
  30
  31 typedef struct _prs_struct {
  32         bool io; /* parsing in or out of data stream */
  33         /*
  34          * If the (incoming) data is big-endian. On output we are
  35          * always little-endian.
  36          */
  37         bool bigendian_data;
  38         uint8 align; /* data alignment */
  39         bool is_dynamic; /* Do we own this memory or not ? */
  40         uint32 data_offset; /* Current working offset into data. */
  41         uint32 buffer_size; /* Current allocated size of the buffer. */
  42         uint32 grow_size; /* size requested via prs_grow() calls */
  43         char *data_p; /* The buffer itself. */
  44         TALLOC_CTX *mem_ctx; /* When unmarshalling, use this.... */
  45         const char *sess_key; /* If we have to do encrypt/decrypt on the fly. */
  46 } prs_struct;
  47
  48 /*
  49  * Defines for io member of prs_struct.
  50  */
  51
  52 #define MARSHALL 0
  53 #define UNMARSHALL 1
  54
  55 #define MARSHALLING(ps) (!(ps)->io)
  56 #define UNMARSHALLING(ps) ((ps)->io)
  57
  58 #define RPC_BIG_ENDIAN          1
  59 #define RPC_LITTLE_ENDIAN       0
  60
  61 #define RPC_PARSE_ALIGN 4
  62
  63 typedef struct _output_data {
  64         /*
  65          * Raw RPC output data. This does not include RPC headers or footers.
  66          */
  67         prs_struct rdata;
  68
  69         /* The amount of data sent from the current rdata struct. */
  70         uint32 data_sent_length;
  71
  72         /*
  73          * The current fragment being returned. This inclues
  74          * headers, data and authentication footer.
  75          */
  76         prs_struct frag;
  77
  78         /* The amount of data sent from the current PDU. */
  79         uint32 current_pdu_sent;
  80 } output_data;
  81
  82 typedef struct _input_data {
  83         /*
  84          * This is the current incoming pdu. The data here
  85          * is collected via multiple writes until a complete
  86          * pdu is seen, then the data is copied into the in_data
  87          * structure. The maximum size of this is 0x1630 (RPC_MAX_PDU_FRAG_LEN).
  88          */
  89         uint8_t *current_in_pdu;
  90
  91         /*
  92          * The amount of data needed to complete the in_pdu.
  93          * If this is zero, then we are at the start of a new
  94          * pdu.
  95          */
  96         uint32 pdu_needed_len;
  97
  98         /*
  99          * The amount of data received so far in the in_pdu.
 100          * If this is zero, then we are at the start of a new
 101          * pdu.
 102          */
 103         uint32 pdu_received_len;
 104
 105         /*
 106          * This is the collection of input data with all
 107          * the rpc headers and auth footers removed.
 108          * The maximum length of this (1Mb) is strictly enforced.
 109          */
 110         prs_struct data;
 111 } input_data;
 112
 113 struct handle_list;
 114
 115 typedef struct pipe_rpc_fns {
 116
 117         struct pipe_rpc_fns *next, *prev;
 118
 119         /* RPC function table associated with the current rpc_bind (associated by context) */
 120
 121         const struct api_struct *cmds;
 122         int n_cmds;
 123         uint32 context_id;
 124
 125 } PIPE_RPC_FNS;
 126
 127 /*
 128  * Different auth types we support.
 129  * Can't keep in sync with wire values as spnego wraps different auth methods.
 130  */
 131
 132 enum pipe_auth_type { PIPE_AUTH_TYPE_NONE = 0, PIPE_AUTH_TYPE_NTLMSSP, PIPE_AUTH_TYPE_SCHANNEL,
 133                         PIPE_AUTH_TYPE_SPNEGO_NTLMSSP, PIPE_AUTH_TYPE_KRB5, PIPE_AUTH_TYPE_SPNEGO_KRB5 };
 134
 135 /* auth state for krb5. */
 136 struct kerberos_auth_struct {
 137         const char *service_principal;
 138         DATA_BLOB session_key;
 139 };
 140
 141 /* auth state for schannel. */
 142 struct schannel_auth_struct {
 143         unsigned char sess_key[16];
 144         uint32 seq_num;
 145 };
 146
 147 /* auth state for all bind types. */
 148
 149 struct pipe_auth_data {
 150         enum pipe_auth_type auth_type; /* switch for union below. */
 151         enum dcerpc_AuthLevel auth_level;
 152         union {
 153                 struct schannel_state *schannel_auth;
 154                 AUTH_NTLMSSP_STATE *auth_ntlmssp_state;
 155 /*              struct kerberos_auth_struct *kerberos_auth; TO BE ADDED... */
 156         } a_u;
 157         void (*auth_data_free_func)(struct pipe_auth_data *);
 158 };
 159
 160 /*
 161  * DCE/RPC-specific samba-internal-specific handling of data on
 162  * NamedPipes.
 163  */
 164
 165 typedef struct pipes_struct {
 166         struct pipes_struct *next, *prev;
 167
 168         char client_address[INET6_ADDRSTRLEN];
 169
 170         struct auth_serversupplied_info *server_info;
 171
 172         struct ndr_syntax_id syntax;
 173
 174         /* linked list of rpc dispatch tables associated
 175            with the open rpc contexts */
 176
 177         PIPE_RPC_FNS *contexts;
 178
 179         RPC_HDR hdr; /* Incoming RPC header. */
 180         RPC_HDR_REQ hdr_req; /* Incoming request header. */
 181
 182         struct pipe_auth_data auth;
 183
 184         /*
 185          * Set to true when an RPC bind has been done on this pipe.
 186          */
 187
 188         bool pipe_bound;
 189
 190         /*
 191          * Set to true when we should return fault PDU's for everything.
 192          */
 193
 194         bool fault_state;
 195
 196         /*
 197          * Set to true when we should return fault PDU's for a bad handle.
 198          */
 199
 200         bool bad_handle_fault_state;
 201
 202         /*
 203          * Set to true when the backend does not support a call.
 204          */
 205
 206         bool rng_fault_state;
 207
 208         /*
 209          * Set to RPC_BIG_ENDIAN when dealing with big-endian PDU's
 210          */
 211
 212         bool endian;
 213
 214         /*
 215          * Struct to deal with multiple pdu inputs.
 216          */
 217
 218         input_data in_data;
 219
 220         /*
 221          * Struct to deal with multiple pdu outputs.
 222          */
 223
 224         output_data out_data;
 225
 226         /* This context is used for PDU data and is freed between each pdu.
 227                 Don't use for pipe state storage. */
 228         TALLOC_CTX *mem_ctx;
 229
 230         /* handle database to use on this pipe. */
 231         struct handle_list *pipe_handles;
 232
 233         /* private data for the interface implementation */
 234         void *private_data;
 235
 236 } pipes_struct;
 237
 238 struct api_struct {
 239         const char *name;
 240         uint8 opnum;
 241         bool (*fn) (pipes_struct *);
 242 };
 243
 244 #endif /* _NT_DOMAIN_H */