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 #define prs_init_empty( _ps_, _ctx_, _io_ ) (void) prs_init((_ps_), 0, (_ctx_), (_io_))
  32
  33 typedef struct _prs_struct {
  34         bool io; /* parsing in or out of data stream */
  35         /*
  36          * If the (incoming) data is big-endian. On output we are
  37          * always little-endian.
  38          */
  39         bool bigendian_data;
  40         uint8 align; /* data alignment */
  41         bool is_dynamic; /* Do we own this memory or not ? */
  42         uint32 data_offset; /* Current working offset into data. */
  43         uint32 buffer_size; /* Current allocated size of the buffer. */
  44         uint32 grow_size; /* size requested via prs_grow() calls */
  45         char *data_p; /* The buffer itself. */
  46         TALLOC_CTX *mem_ctx; /* When unmarshalling, use this.... */
  47         const char *sess_key; /* If we have to do encrypt/decrypt on the fly. */
  48 } prs_struct;
  49
  50 /*
  51  * Defines for io member of prs_struct.
  52  */
  53
  54 #define MARSHALL 0
  55 #define UNMARSHALL 1
  56
  57 #define MARSHALLING(ps) (!(ps)->io)
  58 #define UNMARSHALLING(ps) ((ps)->io)
  59
  60 #define RPC_BIG_ENDIAN          1
  61 #define RPC_LITTLE_ENDIAN       0
  62
  63 #define RPC_PARSE_ALIGN 4
  64
  65 typedef struct _output_data {
  66         /*
  67          * Raw RPC output data. This does not include RPC headers or footers.
  68          */
  69         prs_struct rdata;
  70
  71         /* The amount of data sent from the current rdata struct. */
  72         uint32 data_sent_length;
  73
  74         /*
  75          * The current fragment being returned. This inclues
  76          * headers, data and authentication footer.
  77          */
  78         prs_struct frag;
  79
  80         /* The amount of data sent from the current PDU. */
  81         uint32 current_pdu_sent;
  82 } output_data;
  83
  84 typedef struct _input_data {
  85         /*
  86          * This is the current incoming pdu. The data here
  87          * is collected via multiple writes until a complete
  88          * pdu is seen, then the data is copied into the in_data
  89          * structure. The maximum size of this is 0x1630 (RPC_MAX_PDU_FRAG_LEN).
  90          */
  91         uint8_t *current_in_pdu;
  92
  93         /*
  94          * The amount of data needed to complete the in_pdu.
  95          * If this is zero, then we are at the start of a new
  96          * pdu.
  97          */
  98         uint32 pdu_needed_len;
  99
 100         /*
 101          * The amount of data received so far in the in_pdu.
 102          * If this is zero, then we are at the start of a new
 103          * pdu.
 104          */
 105         uint32 pdu_received_len;
 106
 107         /*
 108          * This is the collection of input data with all
 109          * the rpc headers and auth footers removed.
 110          * The maximum length of this (1Mb) is strictly enforced.
 111          */
 112         prs_struct data;
 113 } input_data;
 114
 115 struct handle_list;
 116
 117 typedef struct pipe_rpc_fns {
 118
 119         struct pipe_rpc_fns *next, *prev;
 120
 121         /* RPC function table associated with the current rpc_bind (associated by context) */
 122
 123         const struct api_struct *cmds;
 124         int n_cmds;
 125         uint32 context_id;
 126
 127 } PIPE_RPC_FNS;
 128
 129 /*
 130  * Different auth types we support.
 131  * Can't keep in sync with wire values as spnego wraps different auth methods.
 132  */
 133
 134 enum pipe_auth_type { PIPE_AUTH_TYPE_NONE = 0, PIPE_AUTH_TYPE_NTLMSSP, PIPE_AUTH_TYPE_SCHANNEL,
 135                         PIPE_AUTH_TYPE_SPNEGO_NTLMSSP, PIPE_AUTH_TYPE_KRB5, PIPE_AUTH_TYPE_SPNEGO_KRB5 };
 136
 137 /* auth state for krb5. */
 138 struct kerberos_auth_struct {
 139         const char *service_principal;
 140         DATA_BLOB session_key;
 141 };
 142
 143 /* auth state for schannel. */
 144 struct schannel_auth_struct {
 145         unsigned char sess_key[16];
 146         uint32 seq_num;
 147 };
 148
 149 /* auth state for all bind types. */
 150
 151 struct pipe_auth_data {
 152         enum pipe_auth_type auth_type; /* switch for union below. */
 153         enum dcerpc_AuthLevel auth_level;
 154         union {
 155                 struct schannel_state *schannel_auth;
 156                 AUTH_NTLMSSP_STATE *auth_ntlmssp_state;
 157 /*              struct kerberos_auth_struct *kerberos_auth; TO BE ADDED... */
 158         } a_u;
 159         void (*auth_data_free_func)(struct pipe_auth_data *);
 160 };
 161
 162 /*
 163  * DCE/RPC-specific samba-internal-specific handling of data on
 164  * NamedPipes.
 165  */
 166
 167 typedef struct pipes_struct {
 168         struct pipes_struct *next, *prev;
 169
 170         char client_address[INET6_ADDRSTRLEN];
 171
 172         struct auth_serversupplied_info *server_info;
 173
 174         struct ndr_syntax_id syntax;
 175
 176         /* linked list of rpc dispatch tables associated
 177            with the open rpc contexts */
 178
 179         PIPE_RPC_FNS *contexts;
 180
 181         RPC_HDR hdr; /* Incoming RPC header. */
 182         RPC_HDR_REQ hdr_req; /* Incoming request header. */
 183
 184         struct pipe_auth_data auth;
 185
 186         /*
 187          * Set to true when an RPC bind has been done on this pipe.
 188          */
 189
 190         bool pipe_bound;
 191
 192         /*
 193          * Set to true when we should return fault PDU's for everything.
 194          */
 195
 196         bool fault_state;
 197
 198         /*
 199          * Set to true when we should return fault PDU's for a bad handle.
 200          */
 201
 202         bool bad_handle_fault_state;
 203
 204         /*
 205          * Set to true when the backend does not support a call.
 206          */
 207
 208         bool rng_fault_state;
 209
 210         /*
 211          * Set to RPC_BIG_ENDIAN when dealing with big-endian PDU's
 212          */
 213
 214         bool endian;
 215
 216         /*
 217          * Struct to deal with multiple pdu inputs.
 218          */
 219
 220         input_data in_data;
 221
 222         /*
 223          * Struct to deal with multiple pdu outputs.
 224          */
 225
 226         output_data out_data;
 227
 228         /* This context is used for PDU data and is freed between each pdu.
 229                 Don't use for pipe state storage. */
 230         TALLOC_CTX *mem_ctx;
 231
 232         /* handle database to use on this pipe. */
 233         struct handle_list *pipe_handles;
 234
 235         /* private data for the interface implementation */
 236         void *private_data;
 237
 238 } pipes_struct;
 239
 240 struct api_struct {
 241         const char *name;
 242         uint8 opnum;
 243         bool (*fn) (pipes_struct *);
 244 };
 245
 246 #endif /* _NT_DOMAIN_H */