g10/call-agent.h

   1 /* call-agent.h - Divert operations to the agent
   2  * Copyright (C) 2003 Free Software Foundation, Inc.
   3  *
   4  * This file is part of GnuPG.
   5  *
   6  * GnuPG 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 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * GnuPG 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, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  19  * USA.
  20  */
  21 #ifndef GNUPG_G10_CALL_AGENT_H
  22 #define GNUPG_G10_CALL_AGENT_H
  23
  24
  25 struct agent_card_info_s
  26 {
  27   int error;         /* private. */
  28   char *serialno;    /* malloced hex string. */
  29   char *disp_name;   /* malloced. */
  30   char *disp_lang;   /* malloced. */
  31   int  disp_sex;     /* 0 = unspecified, 1 = male, 2 = female */
  32   char *pubkey_url;  /* malloced. */
  33   char *login_data;  /* malloced. */
  34   char *private_do[4]; /* malloced. */
  35   char cafpr1valid;
  36   char cafpr2valid;
  37   char cafpr3valid;
  38   char cafpr1[20];
  39   char cafpr2[20];
  40   char cafpr3[20];
  41   char fpr1valid;
  42   char fpr2valid;
  43   char fpr3valid;
  44   char fpr1[20];
  45   char fpr2[20];
  46   char fpr3[20];
  47   u32  fpr1time;
  48   u32  fpr2time;
  49   u32  fpr3time;
  50   unsigned long sig_counter;
  51   int chv1_cached;   /* True if a PIN is not required for each
  52                         signing.  Note that the gpg-agent might cache
  53                         it anyway. */
  54   int chvmaxlen[3];  /* Maximum allowed length of a CHV. */
  55   int chvretry[3];   /* Allowed retries for the CHV; 0 = blocked. */
  56 };
  57
  58 struct agent_card_genkey_s {
  59   char fprvalid;
  60   char fpr[20];
  61   u32  created_at;
  62   gcry_mpi_t n;
  63   gcry_mpi_t e;
  64 };
  65
  66
  67 /* Release the card info structure. */
  68 void agent_release_card_info (struct agent_card_info_s *info);
  69
  70 /* Return card info. */
  71 int agent_learn (struct agent_card_info_s *info);
  72
  73 /* Update INFO with the attribute NAME. */
  74 int agent_scd_getattr (const char *name, struct agent_card_info_s *info);
  75
  76 /* Check whether the secret key for the key identified by HEXKEYGRIP
  77    is available.  Return 0 for yes or an error code. */
  78 int agent_havekey (const char *hexkeygrip);
  79
  80 /* Send a SETATTR command to the SCdaemon. */
  81 int agent_scd_setattr (const char *name,
  82                        const unsigned char *value, size_t valuelen,
  83                        const char *serialno);
  84
  85 /* Send a WRITEKEY command to the SCdaemon. */
  86 int agent_scd_writekey (int keyno, const char *serialno,
  87                         const unsigned char *keydata, size_t keydatalen);
  88
  89 /* Send a GENKEY command to the SCdaemon. */
  90 int agent_scd_genkey (struct agent_card_genkey_s *info, int keyno, int force,
  91                       const char *serialno);
  92
  93 /* Send a PKSIGN command to the SCdaemon. */
  94 int agent_scd_pksign (const char *keyid, int hashalgo,
  95                       const unsigned char *indata, size_t indatalen,
  96                       unsigned char **r_buf, size_t *r_buflen);
  97
  98 /* Send a PKDECRYPT command to the SCdaemon. */
  99 int agent_scd_pkdecrypt (const char *serialno,
 100                          const unsigned char *indata, size_t indatalen,
 101                          unsigned char **r_buf, size_t *r_buflen);
 102
 103 /* Change the PIN of an OpenPGP card or reset the retry counter. */
 104 int agent_scd_change_pin (int chvno, const char *serialno);
 105
 106 /* Send the CHECKPIN command to the SCdaemon. */
 107 int agent_scd_checkpin  (const char *serialno);
 108
 109 /* Dummy function, only implemented by gpg 1.4. */
 110 void agent_clear_pin_cache (const char *sn);
 111
 112
 113 #endif /*GNUPG_G10_CALL_AGENT_H*/
 114