source3/librpc/crypto/spnego.h

   1 /*
   2  *  SPNEGO Encapsulation
   3  *  RPC Pipe client routines
   4  *  Copyright (C) Simo Sorce 2010.
   5  *
   6  *  This program is free software; you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation; either version 3 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #ifndef _CLI_SPNEGO_H_
  21 #define _CLI_SPENGO_H_
  22
  23 enum spnego_mech {
  24         SPNEGO_NONE = 0,
  25         SPNEGO_KRB5,
  26         SPNEGO_NTLMSSP
  27 };
  28
  29 struct spnego_context {
  30         enum spnego_mech mech;
  31
  32         struct gensec_security *gensec_security;
  33
  34         char *oid_list[ASN1_MAX_OIDS];
  35         char *mech_oid;
  36
  37         enum {
  38                 SPNEGO_CONV_INIT = 0,
  39                 SPNEGO_CONV_NEGO,
  40                 SPNEGO_CONV_AUTH_MORE,
  41                 SPNEGO_CONV_AUTH_CONFIRM,
  42                 SPNEGO_CONV_AUTH_DONE
  43         } state;
  44
  45         bool do_sign;
  46         bool do_seal;
  47         bool is_dcerpc;
  48
  49         struct tsocket_address *remote_address;
  50
  51         bool more_processing; /* Current mech state requires more processing */
  52 };
  53
  54 NTSTATUS spnego_generic_init_client(TALLOC_CTX *mem_ctx,
  55                                     const char *oid,
  56                                     bool do_sign, bool do_seal,
  57                                     bool is_dcerpc,
  58                                     const char *server,
  59                                     const char *target_service,
  60                                     const char *domain,
  61                                     const char *username,
  62                                     const char *password,
  63                                     struct spnego_context **spnego_ctx);
  64
  65 NTSTATUS spnego_get_client_auth_token(TALLOC_CTX *mem_ctx,
  66                                       struct spnego_context *sp_ctx,
  67                                       DATA_BLOB *spnego_in,
  68                                       DATA_BLOB *spnego_out);
  69
  70 bool spnego_require_more_processing(struct spnego_context *sp_ctx);
  71
  72 NTSTATUS spnego_get_negotiated_mech(struct spnego_context *sp_ctx,
  73                                     struct gensec_security **auth_context);
  74
  75 DATA_BLOB spnego_get_session_key(TALLOC_CTX *mem_ctx,
  76                                  struct spnego_context *sp_ctx);
  77
  78 NTSTATUS spnego_sign(TALLOC_CTX *mem_ctx,
  79                         struct spnego_context *sp_ctx,
  80                         DATA_BLOB *data, DATA_BLOB *full_data,
  81                         DATA_BLOB *signature);
  82 NTSTATUS spnego_sigcheck(TALLOC_CTX *mem_ctx,
  83                          struct spnego_context *sp_ctx,
  84                          DATA_BLOB *data, DATA_BLOB *full_data,
  85                          DATA_BLOB *signature);
  86 NTSTATUS spnego_seal(TALLOC_CTX *mem_ctx,
  87                         struct spnego_context *sp_ctx,
  88                         DATA_BLOB *data, DATA_BLOB *full_data,
  89                         DATA_BLOB *signature);
  90 NTSTATUS spnego_unseal(TALLOC_CTX *mem_ctx,
  91                         struct spnego_context *sp_ctx,
  92                         DATA_BLOB *data, DATA_BLOB *full_data,
  93                         DATA_BLOB *signature);
  94
  95 #endif /* _CLI_SPENGO_H_ */