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gnupg2/common/audit.h

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/* 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 <https://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_ENCRYPT, /* Data encryption. */
AUDIT_TYPE_SIGN, /* Signature creation. */
AUDIT_TYPE_DECRYPT, /* Data decryption. */
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_AGENT_READY, /* err */
/* Indicates whether the gpg-agent is available. For some
operations the agent is not required and thus no such event
will be logged. */
AUDIT_DIRMNGR_READY, /* err */
/* Indicates whether the Dirmngr is available. For some
operations the Dirmngr is not required and thus no such event
will be logged. */
AUDIT_GPG_READY, /* err */
/* Indicates whether the Gpg engine is available. */
AUDIT_GPGSM_READY, /* err */
/* Indicates whether the Gpgsm engine is available. */
AUDIT_G13_READY, /* err */
/* Indicates whether the G13 engine is available. */
AUDIT_GOT_DATA,
/* Data to be processed has been seen. */
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 the data. This
event will be repeated for all hash algorithms used with the
data. */
AUDIT_ATTR_HASH_ALGO, /* int */
/* The hash algo given as argument is used to hash the message
digest and other signed attributes of this signature. */
AUDIT_DATA_CIPHER_ALGO, /* int */
/* The cipher algo given as argument is used for this 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_BAD_DATA_CIPHER_ALGO, /* string */
/* The symmetric cipher algorithm is not supported. 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: "#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_NEW_RECP, /* int */
/* A new recipient has been seen during decryption. The argument
is the recipient number as used internally by the program. */
AUDIT_RECP_NAME, /* string */
/* The name of a recipient. This is the name or other identification
data as known from the decryption and not the name from the
certificate used for decryption. An example for STRING when
using CMS is: "#1234/CN=Prostetnic Vogon Jeltz". */
AUDIT_RECP_RESULT, /* ok_err */
/* The status of the session key decryption. This is only written
for recipients tried. */
AUDIT_DECRYPTION_RESULT, /* ok_err */
/* The status of the entire decryption. The decryption was
successful if the error code is 0. */
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_CHAIN_STATUS, /* err */
/* Tells the final status of the chain validation. */
AUDIT_ROOT_TRUSTED, /* cert, err */
/* Tells whether the root certificate is trusted. This event is
emitted during chain validation. */
AUDIT_CRL_CHECK, /* err */
/* Tells the status of a CRL or OCSP check. */
AUDIT_GOT_RECIPIENTS, /* int */
/* Records the number of recipients to be used for encryption.
This includes the recipients set by --encrypt-to but records 0
if no real recipient has been given. */
AUDIT_SESSION_KEY, /* string */
/* Mark the creation or availibility of the session key. The
parameter is the algorithm ID. */
AUDIT_ENCRYPTED_TO, /* cert, err */
/* Records the certificate used for encryption and whether the
session key could be encrypted to it (err==0). */
AUDIT_ENCRYPTION_DONE,
/* Encryption succeeded. */
AUDIT_SIGNED_BY, /* cert, err */
/* Records the certificate used for signed and whether the signure
could be created (if err==0). */
AUDIT_SIGNING_DONE,
/* Signing succeeded. */
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, estream_t stream, int use_html);
#endif /*GNUPG_COMMON_AUDIT_H*/
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