LCOV - code coverage report
Current view: top level - src - genkey.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 63 104 60.6 %
Date: 2016-09-12 12:35:26 Functions: 5 7 71.4 %

          Line data    Source code
       1             : /* genkey.c - Key generation.
       2             :    Copyright (C) 2000 Werner Koch (dd9jn)
       3             :    Copyright (C) 2001, 2002, 2003, 2004 g10 Code GmbH
       4             : 
       5             :    This file is part of GPGME.
       6             : 
       7             :    GPGME is free software; you can redistribute it and/or modify it
       8             :    under the terms of the GNU Lesser General Public License as
       9             :    published by the Free Software Foundation; either version 2.1 of
      10             :    the License, or (at your option) any later version.
      11             : 
      12             :    GPGME is distributed in the hope that it will be useful, but
      13             :    WITHOUT ANY WARRANTY; without even the implied warranty of
      14             :    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      15             :    Lesser General Public License for more details.
      16             : 
      17             :    You should have received a copy of the GNU Lesser General Public
      18             :    License along with this program; if not, write to the Free Software
      19             :    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
      20             :    02111-1307, USA.  */
      21             : 
      22             : #if HAVE_CONFIG_H
      23             : #include <config.h>
      24             : #endif
      25             : #include <stdlib.h>
      26             : #include <string.h>
      27             : #include <errno.h>
      28             : 
      29             : #include "gpgme.h"
      30             : #include "debug.h"
      31             : #include "context.h"
      32             : #include "ops.h"
      33             : #include "util.h"
      34             : 
      35             : 
      36             : typedef struct
      37             : {
      38             :   struct _gpgme_op_genkey_result result;
      39             : 
      40             :   /* The error code from a FAILURE status line or 0.  */
      41             :   gpg_error_t failure_code;
      42             : 
      43             :   /* The key parameters passed to the crypto engine.  */
      44             :   gpgme_data_t key_parameter;
      45             : } *op_data_t;
      46             : 
      47             : 
      48             : static void
      49           1 : release_op_data (void *hook)
      50             : {
      51           1 :   op_data_t opd = (op_data_t) hook;
      52             : 
      53           1 :   if (opd->result.fpr)
      54           1 :     free (opd->result.fpr);
      55           1 :   if (opd->key_parameter)
      56           1 :     gpgme_data_release (opd->key_parameter);
      57           1 : }
      58             : 
      59             : 
      60             : gpgme_genkey_result_t
      61           0 : gpgme_op_genkey_result (gpgme_ctx_t ctx)
      62             : {
      63             :   void *hook;
      64             :   op_data_t opd;
      65             :   gpgme_error_t err;
      66             : 
      67           0 :   TRACE_BEG (DEBUG_CTX, "gpgme_op_genkey_result", ctx);
      68             : 
      69           0 :   err = _gpgme_op_data_lookup (ctx, OPDATA_GENKEY, &hook, -1, NULL);
      70           0 :   opd = hook;
      71           0 :   if (err || !opd)
      72             :     {
      73           0 :       TRACE_SUC0 ("result=(null)");
      74           0 :       return NULL;
      75             :     }
      76             : 
      77           0 :   TRACE_LOG3 ("fpr = %s, %s, %s", opd->result.fpr,
      78             :               opd->result.primary ? "primary" : "no primary",
      79             :               opd->result.sub ? "sub" : "no sub");
      80             : 
      81           0 :   TRACE_SUC1 ("result=%p", &opd->result);
      82           0 :   return &opd->result;
      83             : }
      84             : 
      85             : 
      86             : static gpgme_error_t
      87          72 : genkey_status_handler (void *priv, gpgme_status_code_t code, char *args)
      88             : {
      89          72 :   gpgme_ctx_t ctx = (gpgme_ctx_t) priv;
      90             :   gpgme_error_t err;
      91             :   void *hook;
      92             :   op_data_t opd;
      93             : 
      94             :   /* Pipe the status code through the progress status handler.  */
      95          72 :   err = _gpgme_progress_status_handler (ctx, code, args);
      96          72 :   if (err)
      97           0 :     return err;
      98             : 
      99          72 :   err = _gpgme_op_data_lookup (ctx, OPDATA_GENKEY, &hook, -1, NULL);
     100          72 :   opd = hook;
     101          72 :   if (err)
     102           0 :     return err;
     103             : 
     104          72 :   switch (code)
     105             :     {
     106             :     case GPGME_STATUS_KEY_CREATED:
     107           2 :       if (args && *args)
     108             :         {
     109           2 :           if (*args == 'B' || *args == 'P')
     110           2 :             opd->result.primary = 1;
     111           2 :           if (*args == 'B' || *args == 'S')
     112           0 :             opd->result.sub = 1;
     113           2 :           if (args[1] == ' ')
     114             :             {
     115           2 :               if (opd->result.fpr)
     116           0 :                 free (opd->result.fpr);
     117           2 :               opd->result.fpr = strdup (&args[2]);
     118           2 :               if (!opd->result.fpr)
     119           0 :                 return gpg_error_from_syserror ();
     120             :             }
     121             :         }
     122           2 :       break;
     123             : 
     124             :     case GPGME_STATUS_FAILURE:
     125           0 :       opd->failure_code = _gpgme_parse_failure (args);
     126           0 :       break;
     127             : 
     128             :     case GPGME_STATUS_EOF:
     129             :       /* FIXME: Should return some more useful error value.  */
     130           2 :       if (!opd->result.primary && !opd->result.sub)
     131           0 :         return gpg_error (GPG_ERR_GENERAL);
     132           2 :       else if (opd->failure_code)
     133           0 :         return opd->failure_code;
     134           2 :       break;
     135             : 
     136             :     case GPGME_STATUS_INQUIRE_MAXLEN:
     137           0 :       if (ctx->status_cb && !ctx->full_status)
     138             :         {
     139           0 :           err = ctx->status_cb (ctx->status_cb_value, "INQUIRE_MAXLEN", args);
     140           0 :           if (err)
     141           0 :             return err;
     142             :         }
     143           0 :       break;
     144             : 
     145             :     default:
     146          68 :       break;
     147             :     }
     148          72 :   return 0;
     149             : }
     150             : 
     151             : 
     152             : static gpgme_error_t
     153           2 : get_key_parameter (const char *parms, gpgme_data_t *key_parameter)
     154             : {
     155             :   const char *content;
     156             :   const char *attrib;
     157             :   const char *endtag;
     158             : 
     159             :   /* Extract the key parameter from the XML structure.  */
     160           2 :   parms = strstr (parms, "<GnupgKeyParms ");
     161           2 :   if (!parms)
     162           0 :     return gpg_error (GPG_ERR_INV_VALUE);
     163             : 
     164           2 :   content = strchr (parms, '>');
     165           2 :   if (!content)
     166           0 :     return gpg_error (GPG_ERR_INV_VALUE);
     167           2 :   content++;
     168             : 
     169           2 :   attrib = strstr (parms, "format=\"internal\"");
     170           2 :   if (!attrib || attrib >= content)
     171           0 :     return gpg_error (GPG_ERR_INV_VALUE);
     172             : 
     173           2 :   endtag = strstr (content, "</GnupgKeyParms>");
     174             :   /* FIXME: Check that there are no control statements inside.  */
     175           6 :   while (content[0] == '\n'
     176           2 :          || (content[0] == '\r' && content[1] == '\n'))
     177           2 :     content++;
     178             : 
     179           2 :   return gpgme_data_new_from_mem (key_parameter, content,
     180           2 :                                   endtag - content, 1);
     181             : }
     182             : 
     183             : 
     184             : static gpgme_error_t
     185           2 : genkey_start (gpgme_ctx_t ctx, int synchronous, const char *parms,
     186             :               gpgme_data_t pubkey, gpgme_data_t seckey)
     187             : {
     188             :   gpgme_error_t err;
     189             :   void *hook;
     190             :   op_data_t opd;
     191           2 :   err = _gpgme_op_reset (ctx, synchronous);
     192           2 :   if (err)
     193           0 :     return err;
     194             : 
     195           2 :   err = _gpgme_op_data_lookup (ctx, OPDATA_GENKEY, &hook,
     196             :                                sizeof (*opd), release_op_data);
     197           2 :   opd = hook;
     198           2 :   if (err)
     199           0 :     return err;
     200             : 
     201           2 :   err = get_key_parameter (parms, &opd->key_parameter);
     202           2 :   if (err)
     203           0 :     return err;
     204             : 
     205           2 :   _gpgme_engine_set_status_handler (ctx->engine, genkey_status_handler, ctx);
     206             : 
     207           2 :   if (ctx->passphrase_cb)
     208             :     {
     209           0 :       err = _gpgme_engine_set_command_handler
     210             :         (ctx->engine, _gpgme_passphrase_command_handler, ctx, NULL);
     211           0 :       if (err)
     212           0 :         return err;
     213             :     }
     214             : 
     215           2 :   return _gpgme_engine_op_genkey (ctx->engine, opd->key_parameter,
     216           2 :                                   ctx->use_armor, pubkey, seckey);
     217             : }
     218             : 
     219             : 
     220             : /* Generate a new keypair and add it to the keyring.  PUBKEY and
     221             :    SECKEY should be null for now.  PARMS specifies what keys should be
     222             :    generated.  */
     223             : gpgme_error_t
     224           0 : gpgme_op_genkey_start (gpgme_ctx_t ctx, const char *parms,
     225             :                        gpgme_data_t pubkey, gpgme_data_t seckey)
     226             : {
     227             :   gpgme_error_t err;
     228             : 
     229           0 :   TRACE_BEG2 (DEBUG_CTX, "gpgme_op_genkey_start", ctx,
     230             :               "pubkey=%p, seckey=%p", pubkey, seckey);
     231           0 :   TRACE_LOGBUF (parms, strlen (parms));
     232             : 
     233           0 :   if (!ctx)
     234           0 :     return TRACE_ERR (gpg_error (GPG_ERR_INV_VALUE));
     235             : 
     236           0 :   err = genkey_start (ctx, 0, parms, pubkey, seckey);
     237           0 :   return TRACE_ERR (err);
     238             : }
     239             : 
     240             : 
     241             : /* Generate a new keypair and add it to the keyring.  PUBKEY and
     242             :    SECKEY should be null for now.  PARMS specifies what keys should be
     243             :    generated.  */
     244             : gpgme_error_t
     245           2 : gpgme_op_genkey (gpgme_ctx_t ctx, const char *parms, gpgme_data_t pubkey,
     246             :                  gpgme_data_t seckey)
     247             : {
     248             :   gpgme_error_t err;
     249             : 
     250           2 :   TRACE_BEG2 (DEBUG_CTX, "gpgme_op_genkey", ctx,
     251             :               "pubkey=%p, seckey=%p", pubkey, seckey);
     252           2 :   TRACE_LOGBUF (parms, strlen (parms));
     253             : 
     254           2 :   if (!ctx)
     255           0 :     return TRACE_ERR (gpg_error (GPG_ERR_INV_VALUE));
     256             : 
     257           2 :   err = genkey_start (ctx, 1, parms, pubkey, seckey);
     258           2 :   if (!err)
     259           2 :     err = _gpgme_wait_one (ctx);
     260           2 :   return TRACE_ERR (err);
     261             : }

Generated by: LCOV version 1.11