lib/internal.h

   1 /* internal.h   internal header file for libgsasl
   2  * Copyright (C) 2002  Simon Josefsson
   3  *
   4  * This file is part of libgsasl.
   5  *
   6  * Libgsasl is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * Libgsasl 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 GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with libgsasl; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  *
  20  */
  21
  22 #ifndef _INTERNAL_H
  23 #define _INTERNAL_H
  24
  25 #include <stdlib.h>
  26 #include <ctype.h>
  27 #include <string.h>
  28
  29 #include "config.h"
  30 #include "gsasl.h"
  31 #include "gettext.h"
  32
  33 #ifdef ENABLE_NLS
  34 extern char *_gsasl_gettext (const char *str);
  35 #define _(String) _gsasl_gettext (String)
  36 #define gettext_noop(String) String
  37 #define N_(String) gettext_noop (String)
  38 #endif
  39
  40 #define HEXCHAR(c) ((c & 0x0F) > 9 ? 'a' + (c & 0x0F) - 10 : '0' + (c & 0x0F))
  41 #define MIN(a,b) ((a) < (b) ? (a) : (b))
  42
  43 struct _Gsasl_mechanism_functions {
  44   int   (*init)   (Gsasl_ctx *ctx);
  45   void  (*done)   (Gsasl_ctx *ctx);
  46   int   (*start)  (Gsasl_session_ctx *cctx,
  47                    void **mech_data);
  48   int   (*step)   (Gsasl_session_ctx *cctx,
  49                    void *mech_data,
  50                    const char *input,
  51                    size_t input_len,
  52                    char *output,
  53                    size_t *output_len);
  54   int   (*finish) (Gsasl_session_ctx *cctx,
  55                    void *mech_data);
  56 };
  57
  58 struct _Gsasl_mechanism {
  59   char *name;
  60
  61   struct _Gsasl_mechanism_functions client;
  62   struct _Gsasl_mechanism_functions server;
  63 };
  64 typedef struct _Gsasl_mechanism _Gsasl_mechanism;
  65
  66 extern _Gsasl_mechanism _gsasl_all_mechanisms[];
  67
  68 struct Gsasl_ctx {
  69   size_t                                    n_client_mechs;
  70   _Gsasl_mechanism                          *client_mechs;
  71   size_t                                    n_server_mechs;
  72   _Gsasl_mechanism                          *server_mechs;
  73   void                                      *application_data;
  74   Gsasl_client_callback_authorization_id    cbc_authorization_id;
  75   Gsasl_client_callback_authentication_id   cbc_authentication_id;
  76   Gsasl_client_callback_password            cbc_password;
  77   Gsasl_client_callback_passcode            cbc_passcode;
  78   Gsasl_client_callback_pin                 cbc_pin;
  79   Gsasl_client_callback_anonymous           cbc_anonymous;
  80   Gsasl_client_callback_qop                 cbc_qop;
  81   Gsasl_client_callback_maxbuf              cbc_maxbuf;
  82   Gsasl_client_callback_service             cbc_service;
  83   Gsasl_server_callback_validate            cbs_validate;
  84   Gsasl_server_callback_securid             cbs_securid;
  85   Gsasl_server_callback_retrieve            cbs_retrieve;
  86   Gsasl_server_callback_cram_md5            cbs_cram_md5;
  87   Gsasl_server_callback_digest_md5          cbs_digest_md5;
  88   Gsasl_server_callback_external            cbs_external;
  89   Gsasl_server_callback_anonymous           cbs_anonymous;
  90   Gsasl_server_callback_realm               cbs_realm;
  91   Gsasl_server_callback_qop                 cbs_qop;
  92   Gsasl_server_callback_maxbuf              cbs_maxbuf;
  93   Gsasl_server_callback_cipher              cbs_cipher;
  94   Gsasl_server_callback_service             cbs_service;
  95   Gsasl_server_callback_gssapi              cbs_gssapi;
  96 };
  97
  98 struct Gsasl_session_ctx {
  99   Gsasl_ctx *ctx;
 100   _Gsasl_mechanism *mech;
 101   void *application_data;
 102   void *mech_data;
 103 };
 104
 105 #endif /* _INTERNAL_H */