scd/apdu.h

   1 /* apdu.h - ISO 7816 APDU functions and low level I/O
   2  * Copyright (C) 2003, 2008 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 3 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, see <http://www.gnu.org/licenses/>.
  18  *
  19  * $Id$
  20  */
  21
  22 #ifndef APDU_H
  23 #define APDU_H
  24
  25 /* ISO 7816 values for the statusword are defined here because they
  26    should not be visible to the users of the actual ISO command
  27    API. */
  28 enum {
  29   SW_MORE_DATA      = 0x6100, /* Note: that the low byte must be
  30                                  masked of.*/
  31   SW_EOF_REACHED    = 0x6282,
  32   SW_TERM_STATE     = 0x6285, /* Selected file is in termination state.  */
  33   SW_EEPROM_FAILURE = 0x6581,
  34   SW_WRONG_LENGTH   = 0x6700,
  35   SW_SM_NOT_SUP     = 0x6882, /* Secure Messaging is not supported.  */
  36   SW_CC_NOT_SUP     = 0x6884, /* Command Chaining is not supported.  */
  37   SW_CHV_WRONG      = 0x6982,
  38   SW_CHV_BLOCKED    = 0x6983,
  39   SW_USE_CONDITIONS = 0x6985,
  40   SW_BAD_PARAMETER  = 0x6a80, /* (in the data field) */
  41   SW_NOT_SUPPORTED  = 0x6a81,
  42   SW_FILE_NOT_FOUND = 0x6a82,
  43   SW_RECORD_NOT_FOUND = 0x6a83,
  44   SW_REF_NOT_FOUND  = 0x6a88,
  45   SW_BAD_P0_P1      = 0x6b00,
  46   SW_EXACT_LENGTH   = 0x6c00,
  47   SW_INS_NOT_SUP    = 0x6d00,
  48   SW_CLA_NOT_SUP    = 0x6e00,
  49   SW_SUCCESS        = 0x9000,
  50
  51   /* The follwoing statuswords are no real ones but used to map host
  52      OS errors into status words.  A status word is 16 bit so that
  53      those values can't be issued by a card. */
  54   SW_HOST_OUT_OF_CORE = 0x10001,  /* No way yet to differentiate
  55                                      between errnos on a failed malloc. */
  56   SW_HOST_INV_VALUE     = 0x10002,
  57   SW_HOST_INCOMPLETE_CARD_RESPONSE = 0x10003,
  58   SW_HOST_NO_DRIVER     = 0x10004,
  59   SW_HOST_NOT_SUPPORTED = 0x10005,
  60   SW_HOST_LOCKING_FAILED= 0x10006,
  61   SW_HOST_BUSY          = 0x10007,
  62   SW_HOST_NO_CARD       = 0x10008,
  63   SW_HOST_CARD_INACTIVE = 0x10009,
  64   SW_HOST_CARD_IO_ERROR = 0x1000a,
  65   SW_HOST_GENERAL_ERROR = 0x1000b,
  66   SW_HOST_NO_READER     = 0x1000c,
  67   SW_HOST_ABORTED       = 0x1000d,
  68   SW_HOST_NO_KEYPAD     = 0x1000e,
  69   SW_HOST_ALREADY_CONNECTED = 0x1000f
  70 };
  71
  72
  73 #define SW_EXACT_LENGTH_P(a) (((a)&~0xff) == SW_EXACT_LENGTH)
  74
  75
  76 /* Bit flags for the card status.  */
  77 #define APDU_CARD_USABLE   (1)    /* Card is present and ready for use.  */
  78 #define APDU_CARD_PRESENT  (2)    /* Card is just present.  */
  79 #define APDU_CARD_ACTIVE   (4)    /* Card is active.  */
  80
  81
  82 /* Note , that apdu_open_reader returns no status word but -1 on error. */
  83 int apdu_open_reader (const char *portstr);
  84 int apdu_open_remote_reader (const char *portstr,
  85                              const unsigned char *cookie, size_t length,
  86                              int (*readfnc) (void *opaque,
  87                                              void *buffer, size_t size),
  88                              void *readfnc_value,
  89                              int (*writefnc) (void *opaque,
  90                                               const void *buffer, size_t size),
  91                              void *writefnc_value,
  92                              void (*closefnc) (void *opaque),
  93                              void *closefnc_value);
  94 int apdu_shutdown_reader (int slot);
  95 int apdu_close_reader (int slot);
  96 int apdu_enum_reader (int slot, int *used);
  97 unsigned char *apdu_get_atr (int slot, size_t *atrlen);
  98
  99 const char *apdu_strerror (int rc);
 100
 101
 102 /* These APDU functions return status words. */
 103
 104 int apdu_connect (int slot);
 105 int apdu_disconnect (int slot);
 106
 107 int apdu_activate (int slot);
 108 int apdu_reset (int slot);
 109 int apdu_get_status (int slot, int hang,
 110                      unsigned int *status, unsigned int *changed);
 111 int apdu_check_keypad (int slot, int command, int pin_mode,
 112                        int pinlen_min, int pinlen_max, int pin_padlen);
 113 int apdu_send_simple (int slot, int extended_mode,
 114                       int class, int ins, int p0, int p1,
 115                       int lc, const char *data);
 116 int apdu_send_simple_kp (int slot, int class, int ins, int p0, int p1,
 117                          int lc, const char *data,
 118                          int pin_mode,
 119                          int pinlen_min, int pinlen_max, int pin_padlen);
 120 int apdu_send (int slot, int class, int ins, int p0, int p1,
 121                int lc, const char *data,
 122                unsigned char **retbuf, size_t *retbuflen);
 123 int apdu_send_le (int slot, int class, int ins, int p0, int p1,
 124                   int lc, const char *data, int le,
 125                   unsigned char **retbuf, size_t *retbuflen);
 126 int apdu_send_direct (int slot,
 127                       const unsigned char *apdudata, size_t apdudatalen,
 128                       int handle_more,
 129                       unsigned char **retbuf, size_t *retbuflen);
 130
 131
 132 #endif /*APDU_H*/
 133
 134
 135