Started to implement the audit log feature.

Pass PINENTRY_USER_DATA and XAUTHORITY to Pinentry.
Improved support for the quality bar.
Minor internal restructuring.
Translation fixes.

common/audit.h

@@ -0,0 +1,139 @@
+/* audit.h - Definitions for the audit subsystem
+ *	Copyright (C) 2007 Free Software Foundation, Inc.
+ *
+ * This file is part of GnuPG.
+ *
+ * GnuPG is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * GnuPG is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef GNUPG_COMMON_AUDIT_H
+#define GNUPG_COMMON_AUDIT_H
+
+#include <ksba.h>
+
+
+struct audit_ctx_s;
+typedef struct audit_ctx_s *audit_ctx_t;
+
+/* Constants for the audit type.  */
+typedef enum
+  {
+    AUDIT_TYPE_NONE  = 0,  /* No type set.  */
+    AUDIT_TYPE_VERIFY      /* Signature verification.  */
+  }
+audit_type_t;
+
+/* The events we support.  */
+typedef enum
+  {
+    AUDIT_NULL_EVENT = 0,
+    /* No such event.  Its value shall be 0 and no other values shall
+       be assigned to the other enum symbols.  This is required so
+       that the exaudit.awk script comes up with correct values
+       without running cc.  */
+
+    AUDIT_SETUP_READY,
+    /* All preparations done so that the actual processing can start
+       now.  This indicates that all parameters are okay and we can
+       start to process the actual data.  */
+
+    AUDIT_DETACHED_SIGNATURE,
+    /* The signature is a detached one. */
+
+    AUDIT_CERT_ONLY_SIG,
+    /* A certifciate only signature has been detected.  */
+
+    AUDIT_DATA_HASH_ALGO,  /* int */
+    /* The hash algo given as argument is used for this signature.
+       This event will be repeated for all hash algorithms used with
+       the data.  */
+
+    AUDIT_BAD_DATA_HASH_ALGO,  /* string */
+    /* The hash algo as specified by the signature can't be used.
+       STRING is the description of this algorithm which usually is an
+       OID string.  STRING may be NULL. */
+
+    AUDIT_DATA_HASHING,    /* ok_err */
+    /* Logs the result of the data hashing. */
+
+    AUDIT_READ_ERROR,     /* ok_err */
+    /* A generic read error occurred.  */
+
+    AUDIT_WRITE_ERROR,     /* ok_err */
+    /* A generic write error occurred.  */
+
+    AUDIT_USAGE_ERROR,
+    /* The program was used in an inappropriate way; For example by
+       passing a data object while the signature does not expect one
+       or vice versa.  */
+    
+    AUDIT_SAVE_CERT,       /* cert, ok_err */
+    /* Save the certificate received in a message. */
+
+    AUDIT_NEW_SIG,         /* int */
+    /* Start the verification of a new signature for the last data
+       object.  The argument is the signature number as used
+       internally by the program.  */
+    
+    AUDIT_SIG_NAME,        /* string */
+    /* The name of a signer.  This is the name or other identification
+       data as known from the signature and not the name from the
+       certificate used for verification.  An example for STRING when
+       using CMS is:b "#1234/CN=Prostetnic Vogon Jeltz".  */
+
+    AUDIT_SIG_STATUS,     /* string */
+    /* The signature status of the current signer.  This is the last
+       audit information for one signature.  STRING gives the status:
+
+         "error"       - there was a problem checking this or any signature.
+         "unsupported" - the signature type is not supported. 
+         "no-cert"     - The certificate of the signer was not found (the
+                         S/N+issuer of the signer is already in the log).
+         "bad"         - bad signature
+         "good"        - good signature
+    */
+
+    AUDIT_VALIDATE_CHAIN,
+    /* Start the validation of a certificate chain. */
+
+    AUDIT_CHAIN_BEGIN,
+    AUDIT_CHAIN_CERT,    /* cert */
+    AUDIT_CHAIN_ROOTCERT,/* cert */
+    AUDIT_CHAIN_END,
+    /* These 4 events are used to log the certificates making up a
+       certificate chain.  ROOTCERT is used for the trustanchor and
+       CERT for all other certificates.  */ 
+
+
+
+    AUDIT_LAST_EVENT  /* Marker for parsing this list.  */
+  }
+audit_event_t;
+
+
+audit_ctx_t audit_new (void);
+void audit_release (audit_ctx_t ctx);
+void audit_set_type (audit_ctx_t ctx, audit_type_t type);
+void audit_log (audit_ctx_t ctx, audit_event_t event);
+void audit_log_ok (audit_ctx_t ctx, audit_event_t event, gpg_error_t err);
+void audit_log_i (audit_ctx_t ctx, audit_event_t event, int value);
+void audit_log_s (audit_ctx_t ctx, audit_event_t event, const char *value);
+void audit_log_cert (audit_ctx_t ctx, audit_event_t event, 
+                     ksba_cert_t cert, gpg_error_t err);
+
+void audit_print_result (audit_ctx_t ctx, FILE *fp);
+
+
+
+#endif /*GNUPG_COMMON_AUDIT_H*/