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         union {
  33                 struct gensec_security *gensec_security;
  34         } mech_ctx;
  35
  36         char *oid_list[ASN1_MAX_OIDS];
  37         char *mech_oid;
  38
  39         enum {
  40                 SPNEGO_CONV_INIT = 0,
  41                 SPNEGO_CONV_NEGO,
  42                 SPNEGO_CONV_AUTH_MORE,
  43                 SPNEGO_CONV_AUTH_CONFIRM,
  44                 SPNEGO_CONV_AUTH_DONE
  45         } state;
  46
  47         bool do_sign;
  48         bool do_seal;
  49         bool is_dcerpc;
  50
  51         struct tsocket_address *remote_address;
  52
  53         bool more_processing; /* Current mech state requires more processing */
  54 };
  55
  56 NTSTATUS spnego_generic_init_client(TALLOC_CTX *mem_ctx,
  57                                     const char *oid,
  58                                     bool do_sign, bool do_seal,
  59                                     bool is_dcerpc,
  60                                     const char *server,
  61                                     const char *target_service,
  62                                     const char *domain,
  63                                     const char *username,
  64                                     const char *password,
  65                                     struct spnego_context **spnego_ctx);
  66
  67 NTSTATUS spnego_get_client_auth_token(TALLOC_CTX *mem_ctx,
  68                                       struct spnego_context *sp_ctx,
  69                                       DATA_BLOB *spnego_in,
  70                                       DATA_BLOB *spnego_out);
  71
  72 bool spnego_require_more_processing(struct spnego_context *sp_ctx);
  73
  74 NTSTATUS spnego_get_negotiated_mech(struct spnego_context *sp_ctx,
  75                                     enum spnego_mech *type,
  76                                     struct gensec_security **auth_context);
  77
  78 DATA_BLOB spnego_get_session_key(TALLOC_CTX *mem_ctx,
  79                                  struct spnego_context *sp_ctx);
  80
  81 NTSTATUS spnego_sign(TALLOC_CTX *mem_ctx,
  82                         struct spnego_context *sp_ctx,
  83                         DATA_BLOB *data, DATA_BLOB *full_data,
  84                         DATA_BLOB *signature);
  85 NTSTATUS spnego_sigcheck(TALLOC_CTX *mem_ctx,
  86                          struct spnego_context *sp_ctx,
  87                          DATA_BLOB *data, DATA_BLOB *full_data,
  88                          DATA_BLOB *signature);
  89 NTSTATUS spnego_seal(TALLOC_CTX *mem_ctx,
  90                         struct spnego_context *sp_ctx,
  91                         DATA_BLOB *data, DATA_BLOB *full_data,
  92                         DATA_BLOB *signature);
  93 NTSTATUS spnego_unseal(TALLOC_CTX *mem_ctx,
  94                         struct spnego_context *sp_ctx,
  95                         DATA_BLOB *data, DATA_BLOB *full_data,
  96                         DATA_BLOB *signature);
  97
  98 #endif /* _CLI_SPENGO_H_ */