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![Werner Koch](/assets/img/avatar_default.png)
* sm/certchain.c (is_cert_still_valid): Shortcut if tehre is no DP. * common/audit.c (proc_type_verify): Print "n/a" if a cert has no distribution point. * sm/gpgsm.h (opt): Add field enable_issuer_based_crl_check. * sm/gpgsm.c (oEnableIssuerBasedCRLCheck): New. (opts): Add option --enable-issuer-based-crl-check. (main): Set option. -- If the issuer does not provide a DP and the user wants such an issuer, we expect that a certificate does not need revocation checks. The new option --enable-issuer-based-crl-check can be used to revert to the old behaviour which requires that a suitable LDAP server has been configured to lookup a CRL by issuer. Signed-off-by: Werner Koch <wk@gnupg.org>
1325 lines
35 KiB
C
1325 lines
35 KiB
C
/* audit.c - GnuPG's audit subsystem
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* Copyright (C) 2007, 2009 Free Software Foundation, Inc.
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*
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* This file is part of GnuPG.
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*
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* GnuPG is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* GnuPG is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <https://www.gnu.org/licenses/>.
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*/
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#include <config.h>
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#include <stdlib.h>
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#include <string.h>
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#include <stdarg.h>
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#include <assert.h>
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#include "util.h"
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#include "i18n.h"
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#include "audit.h"
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#include "audit-events.h"
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/* A list to maintain a list of helptags. */
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struct helptag_s
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{
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struct helptag_s *next;
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const char *name;
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};
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typedef struct helptag_s *helptag_t;
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/* One log entry. */
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struct log_item_s
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{
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audit_event_t event; /* The event. */
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gpg_error_t err; /* The logged error code. */
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int intvalue; /* A logged integer value. */
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char *string; /* A malloced string or NULL. */
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ksba_cert_t cert; /* A certifciate or NULL. */
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int have_err:1;
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int have_intvalue:1;
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};
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typedef struct log_item_s *log_item_t;
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/* The main audit object. */
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struct audit_ctx_s
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{
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const char *failure; /* If set a description of the internal failure. */
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audit_type_t type;
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log_item_t log; /* The table with the log entries. */
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size_t logsize; /* The allocated size for LOG. */
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size_t logused; /* The used size of LOG. */
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estream_t outstream; /* The current output stream. */
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int use_html; /* The output shall be HTML formatted. */
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int indentlevel; /* Current level of indentation. */
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helptag_t helptags; /* List of help keys. */
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};
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static void writeout_para (audit_ctx_t ctx,
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const char *format, ...) GPGRT_ATTR_PRINTF(2,3);
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static void writeout_li (audit_ctx_t ctx, const char *oktext,
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const char *format, ...) GPGRT_ATTR_PRINTF(3,4);
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static void writeout_rem (audit_ctx_t ctx,
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const char *format, ...) GPGRT_ATTR_PRINTF(2,3);
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/* Add NAME to the list of help tags. NAME needs to be a const string
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an this function merely stores this pointer. */
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static void
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add_helptag (audit_ctx_t ctx, const char *name)
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{
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helptag_t item;
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for (item=ctx->helptags; item; item = item->next)
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if (!strcmp (item->name, name))
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return; /* Already in the list. */
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item = xtrycalloc (1, sizeof *item);
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if (!item)
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return; /* Don't care about memory problems. */
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item->name = name;
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item->next = ctx->helptags;
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ctx->helptags = item;
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}
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/* Remove all help tags from the context. */
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static void
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clear_helptags (audit_ctx_t ctx)
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{
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while (ctx->helptags)
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{
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helptag_t tmp = ctx->helptags->next;
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xfree (ctx->helptags);
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ctx->helptags = tmp;
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}
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}
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static const char *
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event2str (audit_event_t event)
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{
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/* We need the cast so that compiler does not complain about an
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always true comparison (>= 0) for an unsigned value. */
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int idx = eventstr_msgidxof ((int)event);
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if (idx == -1)
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return "Unknown event";
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else
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return eventstr_msgstr + eventstr_msgidx[idx];
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}
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/* Create a new audit context. In case of an error NULL is returned
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and errno set appropriately. */
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audit_ctx_t
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audit_new (void)
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{
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audit_ctx_t ctx;
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ctx = xtrycalloc (1, sizeof *ctx);
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return ctx;
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}
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/* Release an audit context. Passing NULL for CTX is allowed and does
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nothing. */
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void
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audit_release (audit_ctx_t ctx)
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{
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int idx;
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if (!ctx)
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return;
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if (ctx->log)
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{
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for (idx=0; idx < ctx->logused; idx++)
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{
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if (ctx->log[idx].string)
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xfree (ctx->log[idx].string);
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if (ctx->log[idx].cert)
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ksba_cert_release (ctx->log[idx].cert);
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}
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xfree (ctx->log);
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}
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clear_helptags (ctx);
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xfree (ctx);
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}
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/* Set the type for the audit operation. If CTX is NULL, this is a
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dummy function. */
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void
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audit_set_type (audit_ctx_t ctx, audit_type_t type)
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{
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if (!ctx || ctx->failure)
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return; /* Audit not enabled or an internal error has occurred. */
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if (ctx->type && ctx->type != type)
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{
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ctx->failure = "conflict in type initialization";
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return;
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}
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ctx->type = type;
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}
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/* Create a new log item and put it into the table. Return that log
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item on success; return NULL on memory failure and mark that in
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CTX. */
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static log_item_t
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create_log_item (audit_ctx_t ctx)
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{
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log_item_t item, table;
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size_t size;
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if (!ctx->log)
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{
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size = 10;
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table = xtrymalloc (size * sizeof *table);
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if (!table)
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{
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ctx->failure = "Out of memory in create_log_item";
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return NULL;
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}
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ctx->log = table;
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ctx->logsize = size;
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item = ctx->log + 0;
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ctx->logused = 1;
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}
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else if (ctx->logused >= ctx->logsize)
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{
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size = ctx->logsize + 10;
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table = xtryrealloc (ctx->log, size * sizeof *table);
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if (!table)
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{
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ctx->failure = "Out of memory while reallocating in create_log_item";
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return NULL;
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}
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ctx->log = table;
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ctx->logsize = size;
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item = ctx->log + ctx->logused++;
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}
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else
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item = ctx->log + ctx->logused++;
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item->event = AUDIT_NULL_EVENT;
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item->err = 0;
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item->have_err = 0;
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item->intvalue = 0;
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item->have_intvalue = 0;
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item->string = NULL;
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item->cert = NULL;
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return item;
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}
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/* Add a new event to the audit log. If CTX is NULL, this function
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does nothing. */
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void
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audit_log (audit_ctx_t ctx, audit_event_t event)
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{
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log_item_t item;
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if (!ctx || ctx->failure)
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return; /* Audit not enabled or an internal error has occurred. */
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if (!event)
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{
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ctx->failure = "Invalid event passed to audit_log";
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return;
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}
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if (!(item = create_log_item (ctx)))
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return;
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item->event = event;
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}
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/* Add a new event to the audit log. If CTX is NULL, this function
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does nothing. This version also adds the result of the operation
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to the log. */
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void
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audit_log_ok (audit_ctx_t ctx, audit_event_t event, gpg_error_t err)
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{
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log_item_t item;
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if (!ctx || ctx->failure)
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return; /* Audit not enabled or an internal error has occurred. */
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if (!event)
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{
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ctx->failure = "Invalid event passed to audit_log_ok";
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return;
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}
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if (!(item = create_log_item (ctx)))
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return;
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item->event = event;
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item->err = err;
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item->have_err = 1;
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}
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/* Add a new event to the audit log. If CTX is NULL, this function
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does nothing. This version also add the integer VALUE to the log. */
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void
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audit_log_i (audit_ctx_t ctx, audit_event_t event, int value)
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{
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log_item_t item;
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if (!ctx || ctx->failure)
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return; /* Audit not enabled or an internal error has occurred. */
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if (!event)
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{
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ctx->failure = "Invalid event passed to audit_log_i";
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return;
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}
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if (!(item = create_log_item (ctx)))
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return;
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item->event = event;
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item->intvalue = value;
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item->have_intvalue = 1;
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}
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/* Add a new event to the audit log. If CTX is NULL, this function
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does nothing. This version also add the integer VALUE to the log. */
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void
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audit_log_s (audit_ctx_t ctx, audit_event_t event, const char *value)
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{
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log_item_t item;
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char *tmp;
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if (!ctx || ctx->failure)
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return; /* Audit not enabled or an internal error has occurred. */
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if (!event)
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{
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ctx->failure = "Invalid event passed to audit_log_s";
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return;
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}
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tmp = xtrystrdup (value? value : "");
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if (!tmp)
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{
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ctx->failure = "Out of memory in audit_event";
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return;
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}
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if (!(item = create_log_item (ctx)))
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{
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xfree (tmp);
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return;
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}
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item->event = event;
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item->string = tmp;
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}
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/* Add a new event to the audit log. If CTX is NULL, this function
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does nothing. This version also adds the certificate CERT and the
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result of an operation to the log. */
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void
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audit_log_cert (audit_ctx_t ctx, audit_event_t event,
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ksba_cert_t cert, gpg_error_t err)
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{
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log_item_t item;
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if (!ctx || ctx->failure)
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return; /* Audit not enabled or an internal error has occurred. */
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if (!event)
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{
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ctx->failure = "Invalid event passed to audit_log_cert";
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return;
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}
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if (!(item = create_log_item (ctx)))
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return;
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item->event = event;
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item->err = err;
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item->have_err = 1;
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if (cert)
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{
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ksba_cert_ref (cert);
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item->cert = cert;
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}
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}
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/* Write TEXT to the outstream. */
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static void
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writeout (audit_ctx_t ctx, const char *text)
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{
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if (ctx->use_html)
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{
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for (; *text; text++)
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{
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if (*text == '<')
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es_fputs ("<", ctx->outstream);
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else if (*text == '&')
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es_fputs ("&", ctx->outstream);
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else
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es_putc (*text, ctx->outstream);
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}
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}
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else
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es_fputs (text, ctx->outstream);
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}
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/* Write TEXT to the outstream using a variable argument list. */
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static void
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writeout_v (audit_ctx_t ctx, const char *format, va_list arg_ptr)
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{
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char *buf;
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gpgrt_vasprintf (&buf, format, arg_ptr);
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if (buf)
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{
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writeout (ctx, buf);
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xfree (buf);
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}
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else
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writeout (ctx, "[!!Out of core!!]");
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}
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/* Write TEXT as a paragraph. */
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static void
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writeout_para (audit_ctx_t ctx, const char *format, ...)
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{
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va_list arg_ptr;
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if (ctx->use_html)
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es_fputs ("<p>", ctx->outstream);
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va_start (arg_ptr, format) ;
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writeout_v (ctx, format, arg_ptr);
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va_end (arg_ptr);
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if (ctx->use_html)
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es_fputs ("</p>\n", ctx->outstream);
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else
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es_fputc ('\n', ctx->outstream);
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}
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static void
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enter_li (audit_ctx_t ctx)
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{
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if (ctx->use_html)
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{
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if (!ctx->indentlevel)
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{
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es_fputs ("<table border=\"0\">\n"
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" <colgroup>\n"
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" <col width=\"80%\" />\n"
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" <col width=\"20%\" />\n"
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" </colgroup>\n",
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ctx->outstream);
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}
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}
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ctx->indentlevel++;
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}
|
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static void
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leave_li (audit_ctx_t ctx)
|
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{
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ctx->indentlevel--;
|
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if (ctx->use_html)
|
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{
|
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if (!ctx->indentlevel)
|
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es_fputs ("</table>\n", ctx->outstream);
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}
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}
|
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||
|
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/* Write TEXT as a list element. If OKTEXT is not NULL, append it to
|
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the last line. */
|
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static void
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writeout_li (audit_ctx_t ctx, const char *oktext, const char *format, ...)
|
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{
|
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va_list arg_ptr;
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const char *color = NULL;
|
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|
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if (ctx->use_html && format && oktext)
|
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{
|
||
if (!strcmp (oktext, "Yes")
|
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|| !strcmp (oktext, "good") )
|
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color = "green";
|
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else if (!strcmp (oktext, "No")
|
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|| !strcmp (oktext, "bad") )
|
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color = "red";
|
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}
|
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|
||
if (format && oktext)
|
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{
|
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const char *s = NULL;
|
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|
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if (!strcmp (oktext, "Yes"))
|
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oktext = _("Yes");
|
||
else if (!strcmp (oktext, "No"))
|
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oktext = _("No");
|
||
else if (!strcmp (oktext, "good"))
|
||
{
|
||
/* TRANSLATORS: Copy the prefix between the vertical bars
|
||
verbatim. It will not be printed. */
|
||
oktext = _("|audit-log-result|Good");
|
||
}
|
||
else if (!strcmp (oktext, "bad"))
|
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oktext = _("|audit-log-result|Bad");
|
||
else if (!strcmp (oktext, "unsupported"))
|
||
oktext = _("|audit-log-result|Not supported");
|
||
else if (!strcmp (oktext, "no-cert"))
|
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oktext = _("|audit-log-result|No certificate");
|
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else if (!strcmp (oktext, "disabled"))
|
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oktext = _("|audit-log-result|Not enabled");
|
||
else if (!strcmp (oktext, "error"))
|
||
oktext = _("|audit-log-result|Error");
|
||
else if (!strcmp (oktext, "not-used"))
|
||
oktext = _("|audit-log-result|Not used");
|
||
else if (!strcmp (oktext, "okay"))
|
||
oktext = _("|audit-log-result|Okay");
|
||
else if (!strcmp (oktext, "skipped"))
|
||
oktext = _("|audit-log-result|Skipped");
|
||
else if (!strcmp (oktext, "some"))
|
||
oktext = _("|audit-log-result|Some");
|
||
else
|
||
s = "";
|
||
|
||
/* If we have set a prefix, skip it. */
|
||
if (!s && *oktext == '|' && (s=strchr (oktext+1,'|')))
|
||
oktext = s+1;
|
||
}
|
||
|
||
if (ctx->use_html)
|
||
{
|
||
int i;
|
||
|
||
es_fputs (" <tr><td><table><tr><td>", ctx->outstream);
|
||
if (color)
|
||
es_fprintf (ctx->outstream, "<font color=\"%s\">*</font>", color);
|
||
else
|
||
es_fputs ("*", ctx->outstream);
|
||
for (i=1; i < ctx->indentlevel; i++)
|
||
es_fputs (" ", ctx->outstream);
|
||
es_fputs ("</td><td>", ctx->outstream);
|
||
}
|
||
else
|
||
es_fprintf (ctx->outstream, "* %*s", (ctx->indentlevel-1)*2, "");
|
||
if (format)
|
||
{
|
||
va_start (arg_ptr, format) ;
|
||
writeout_v (ctx, format, arg_ptr);
|
||
va_end (arg_ptr);
|
||
}
|
||
if (ctx->use_html)
|
||
es_fputs ("</td></tr></table>", ctx->outstream);
|
||
if (format && oktext)
|
||
{
|
||
if (ctx->use_html)
|
||
{
|
||
es_fputs ("</td><td>", ctx->outstream);
|
||
if (color)
|
||
es_fprintf (ctx->outstream, "<font color=\"%s\">", color);
|
||
}
|
||
else
|
||
writeout (ctx, ": ");
|
||
writeout (ctx, oktext);
|
||
if (color)
|
||
es_fputs ("</font>", ctx->outstream);
|
||
}
|
||
|
||
if (ctx->use_html)
|
||
es_fputs ("</td></tr>\n", ctx->outstream);
|
||
else
|
||
es_fputc ('\n', ctx->outstream);
|
||
}
|
||
|
||
|
||
/* Write a remark line. */
|
||
static void
|
||
writeout_rem (audit_ctx_t ctx, const char *format, ...)
|
||
{
|
||
va_list arg_ptr;
|
||
|
||
if (ctx->use_html)
|
||
{
|
||
int i;
|
||
|
||
es_fputs (" <tr><td><table><tr><td>*", ctx->outstream);
|
||
for (i=1; i < ctx->indentlevel; i++)
|
||
es_fputs (" ", ctx->outstream);
|
||
es_fputs (" </td><td> (", ctx->outstream);
|
||
|
||
}
|
||
else
|
||
es_fprintf (ctx->outstream, "* %*s (", (ctx->indentlevel-1)*2, "");
|
||
if (format)
|
||
{
|
||
va_start (arg_ptr, format) ;
|
||
writeout_v (ctx, format, arg_ptr);
|
||
va_end (arg_ptr);
|
||
}
|
||
if (ctx->use_html)
|
||
es_fputs (")</td></tr></table></td></tr>\n", ctx->outstream);
|
||
else
|
||
es_fputs (")\n", ctx->outstream);
|
||
}
|
||
|
||
|
||
/* Return the first log item for EVENT. If STOPEVENT is not 0 never
|
||
look behind that event in the log. If STARTITEM is not NULL start
|
||
search _after_that item. */
|
||
static log_item_t
|
||
find_next_log_item (audit_ctx_t ctx, log_item_t startitem,
|
||
audit_event_t event, audit_event_t stopevent)
|
||
{
|
||
int idx;
|
||
|
||
for (idx=0; idx < ctx->logused; idx++)
|
||
{
|
||
if (startitem)
|
||
{
|
||
if (ctx->log + idx == startitem)
|
||
startitem = NULL;
|
||
}
|
||
else if (stopevent && ctx->log[idx].event == stopevent)
|
||
break;
|
||
else if (ctx->log[idx].event == event)
|
||
return ctx->log + idx;
|
||
}
|
||
return NULL;
|
||
}
|
||
|
||
|
||
static log_item_t
|
||
find_log_item (audit_ctx_t ctx, audit_event_t event, audit_event_t stopevent)
|
||
{
|
||
return find_next_log_item (ctx, NULL, event, stopevent);
|
||
}
|
||
|
||
|
||
/* Helper to a format a serial number. */
|
||
static char *
|
||
format_serial (ksba_const_sexp_t sn)
|
||
{
|
||
const char *p = (const char *)sn;
|
||
unsigned long n;
|
||
char *endp;
|
||
|
||
if (!p)
|
||
return NULL;
|
||
if (*p != '(')
|
||
BUG (); /* Not a valid S-expression. */
|
||
n = strtoul (p+1, &endp, 10);
|
||
p = endp;
|
||
if (*p != ':')
|
||
BUG (); /* Not a valid S-expression. */
|
||
return bin2hex (p+1, n, NULL);
|
||
}
|
||
|
||
|
||
/* Return a malloced string with the serial number and the issuer DN
|
||
of the certificate. */
|
||
static char *
|
||
get_cert_name (ksba_cert_t cert)
|
||
{
|
||
char *result;
|
||
ksba_sexp_t sn;
|
||
char *issuer, *p;
|
||
|
||
if (!cert)
|
||
return xtrystrdup ("[no certificate]");
|
||
|
||
issuer = ksba_cert_get_issuer (cert, 0);
|
||
sn = ksba_cert_get_serial (cert);
|
||
if (issuer && sn)
|
||
{
|
||
p = format_serial (sn);
|
||
if (!p)
|
||
result = xtrystrdup ("[invalid S/N]");
|
||
else
|
||
{
|
||
result = xtrymalloc (strlen (p) + strlen (issuer) + 2 + 1);
|
||
if (result)
|
||
{
|
||
*result = '#';
|
||
strcpy (stpcpy (stpcpy (result+1, p),"/"), issuer);
|
||
}
|
||
xfree (p);
|
||
}
|
||
}
|
||
else
|
||
result = xtrystrdup ("[missing S/N or issuer]");
|
||
ksba_free (sn);
|
||
xfree (issuer);
|
||
return result;
|
||
}
|
||
|
||
/* Return a malloced string with the serial number and the issuer DN
|
||
of the certificate. */
|
||
static char *
|
||
get_cert_subject (ksba_cert_t cert, int idx)
|
||
{
|
||
char *result;
|
||
char *subject;
|
||
|
||
if (!cert)
|
||
return xtrystrdup ("[no certificate]");
|
||
|
||
subject = ksba_cert_get_subject (cert, idx);
|
||
if (subject)
|
||
{
|
||
result = xtrymalloc (strlen (subject) + 1 + 1);
|
||
if (result)
|
||
{
|
||
*result = '/';
|
||
strcpy (result+1, subject);
|
||
}
|
||
}
|
||
else
|
||
result = NULL;
|
||
xfree (subject);
|
||
return result;
|
||
}
|
||
|
||
|
||
/* List the given certificiate. If CERT is NULL, this is a NOP. */
|
||
static void
|
||
list_cert (audit_ctx_t ctx, ksba_cert_t cert, int with_subj)
|
||
{
|
||
char *name;
|
||
int idx;
|
||
|
||
name = get_cert_name (cert);
|
||
writeout_rem (ctx, "%s", name);
|
||
xfree (name);
|
||
if (with_subj)
|
||
{
|
||
enter_li (ctx);
|
||
for (idx=0; (name = get_cert_subject (cert, idx)); idx++)
|
||
{
|
||
writeout_rem (ctx, "%s", name);
|
||
xfree (name);
|
||
}
|
||
leave_li (ctx);
|
||
}
|
||
}
|
||
|
||
|
||
/* List the chain of certificates from STARTITEM up to STOPEVENT. The
|
||
certificates are written out as comments. */
|
||
static void
|
||
list_certchain (audit_ctx_t ctx, log_item_t startitem, audit_event_t stopevent)
|
||
{
|
||
log_item_t item;
|
||
|
||
startitem = find_next_log_item (ctx, startitem, AUDIT_CHAIN_BEGIN,stopevent);
|
||
writeout_li (ctx, startitem? "Yes":"No", _("Certificate chain available"));
|
||
if (!startitem)
|
||
return;
|
||
|
||
item = find_next_log_item (ctx, startitem,
|
||
AUDIT_CHAIN_ROOTCERT, AUDIT_CHAIN_END);
|
||
if (!item)
|
||
writeout_rem (ctx, "%s", _("root certificate missing"));
|
||
else
|
||
{
|
||
list_cert (ctx, item->cert, 0);
|
||
}
|
||
item = startitem;
|
||
while ( ((item = find_next_log_item (ctx, item,
|
||
AUDIT_CHAIN_CERT, AUDIT_CHAIN_END))))
|
||
{
|
||
list_cert (ctx, item->cert, 1);
|
||
}
|
||
}
|
||
|
||
|
||
|
||
/* Process an encrypt operation's log. */
|
||
static void
|
||
proc_type_encrypt (audit_ctx_t ctx)
|
||
{
|
||
log_item_t loopitem, item;
|
||
int recp_no, idx;
|
||
char numbuf[35];
|
||
int algo;
|
||
char *name;
|
||
|
||
item = find_log_item (ctx, AUDIT_ENCRYPTION_DONE, 0);
|
||
writeout_li (ctx, item?"Yes":"No", "%s", _("Data encryption succeeded"));
|
||
|
||
enter_li (ctx);
|
||
|
||
item = find_log_item (ctx, AUDIT_GOT_DATA, 0);
|
||
writeout_li (ctx, item? "Yes":"No", "%s", _("Data available"));
|
||
|
||
item = find_log_item (ctx, AUDIT_SESSION_KEY, 0);
|
||
writeout_li (ctx, item? "Yes":"No", "%s", _("Session key created"));
|
||
if (item)
|
||
{
|
||
algo = gcry_cipher_map_name (item->string);
|
||
if (algo)
|
||
writeout_rem (ctx, _("algorithm: %s"), gnupg_cipher_algo_name (algo));
|
||
else if (item->string && !strcmp (item->string, "1.2.840.113549.3.2"))
|
||
writeout_rem (ctx, _("unsupported algorithm: %s"), "RC2");
|
||
else if (item->string)
|
||
writeout_rem (ctx, _("unsupported algorithm: %s"), item->string);
|
||
else
|
||
writeout_rem (ctx, _("seems to be not encrypted"));
|
||
}
|
||
|
||
item = find_log_item (ctx, AUDIT_GOT_RECIPIENTS, 0);
|
||
snprintf (numbuf, sizeof numbuf, "%d",
|
||
item && item->have_intvalue? item->intvalue : 0);
|
||
writeout_li (ctx, numbuf, "%s", _("Number of recipients"));
|
||
|
||
/* Loop over all recipients. */
|
||
loopitem = NULL;
|
||
recp_no = 0;
|
||
while ((loopitem=find_next_log_item (ctx, loopitem, AUDIT_ENCRYPTED_TO, 0)))
|
||
{
|
||
recp_no++;
|
||
writeout_li (ctx, NULL, _("Recipient %d"), recp_no);
|
||
if (loopitem->cert)
|
||
{
|
||
name = get_cert_name (loopitem->cert);
|
||
writeout_rem (ctx, "%s", name);
|
||
xfree (name);
|
||
enter_li (ctx);
|
||
for (idx=0; (name = get_cert_subject (loopitem->cert, idx)); idx++)
|
||
{
|
||
writeout_rem (ctx, "%s", name);
|
||
xfree (name);
|
||
}
|
||
leave_li (ctx);
|
||
}
|
||
}
|
||
|
||
leave_li (ctx);
|
||
}
|
||
|
||
|
||
|
||
/* Process a sign operation's log. */
|
||
static void
|
||
proc_type_sign (audit_ctx_t ctx)
|
||
{
|
||
log_item_t item, loopitem;
|
||
int signer, idx;
|
||
const char *result;
|
||
ksba_cert_t cert;
|
||
char *name;
|
||
int lastalgo;
|
||
|
||
item = find_log_item (ctx, AUDIT_SIGNING_DONE, 0);
|
||
writeout_li (ctx, item?"Yes":"No", "%s", _("Data signing succeeded"));
|
||
|
||
enter_li (ctx);
|
||
|
||
item = find_log_item (ctx, AUDIT_GOT_DATA, 0);
|
||
writeout_li (ctx, item? "Yes":"No", "%s", _("Data available"));
|
||
/* Write remarks with the data hash algorithms. We use a very
|
||
simple scheme to avoid some duplicates. */
|
||
loopitem = NULL;
|
||
lastalgo = 0;
|
||
while ((loopitem = find_next_log_item
|
||
(ctx, loopitem, AUDIT_DATA_HASH_ALGO, AUDIT_NEW_SIG)))
|
||
{
|
||
if (loopitem->intvalue && loopitem->intvalue != lastalgo)
|
||
writeout_rem (ctx, _("data hash algorithm: %s"),
|
||
gcry_md_algo_name (loopitem->intvalue));
|
||
lastalgo = loopitem->intvalue;
|
||
}
|
||
|
||
/* Loop over all signer. */
|
||
loopitem = NULL;
|
||
signer = 0;
|
||
while ((loopitem=find_next_log_item (ctx, loopitem, AUDIT_NEW_SIG, 0)))
|
||
{
|
||
signer++;
|
||
|
||
item = find_next_log_item (ctx, loopitem, AUDIT_SIGNED_BY, AUDIT_NEW_SIG);
|
||
if (!item)
|
||
result = "error";
|
||
else if (!item->err)
|
||
result = "okay";
|
||
else if (gpg_err_code (item->err) == GPG_ERR_CANCELED)
|
||
result = "skipped";
|
||
else
|
||
result = gpg_strerror (item->err);
|
||
cert = item? item->cert : NULL;
|
||
|
||
writeout_li (ctx, result, _("Signer %d"), signer);
|
||
item = find_next_log_item (ctx, loopitem,
|
||
AUDIT_ATTR_HASH_ALGO, AUDIT_NEW_SIG);
|
||
if (item)
|
||
writeout_rem (ctx, _("attr hash algorithm: %s"),
|
||
gcry_md_algo_name (item->intvalue));
|
||
|
||
if (cert)
|
||
{
|
||
name = get_cert_name (cert);
|
||
writeout_rem (ctx, "%s", name);
|
||
xfree (name);
|
||
enter_li (ctx);
|
||
for (idx=0; (name = get_cert_subject (cert, idx)); idx++)
|
||
{
|
||
writeout_rem (ctx, "%s", name);
|
||
xfree (name);
|
||
}
|
||
leave_li (ctx);
|
||
}
|
||
}
|
||
|
||
leave_li (ctx);
|
||
}
|
||
|
||
|
||
|
||
/* Process a decrypt operation's log. */
|
||
static void
|
||
proc_type_decrypt (audit_ctx_t ctx)
|
||
{
|
||
log_item_t loopitem, item;
|
||
int algo, recpno;
|
||
char *name;
|
||
char numbuf[35];
|
||
int idx;
|
||
|
||
item = find_log_item (ctx, AUDIT_DECRYPTION_RESULT, 0);
|
||
writeout_li (ctx, item && !item->err?"Yes":"No",
|
||
"%s", _("Data decryption succeeded"));
|
||
|
||
enter_li (ctx);
|
||
|
||
item = find_log_item (ctx, AUDIT_GOT_DATA, 0);
|
||
writeout_li (ctx, item? "Yes":"No", "%s", _("Data available"));
|
||
|
||
item = find_log_item (ctx, AUDIT_DATA_CIPHER_ALGO, 0);
|
||
algo = item? item->intvalue : 0;
|
||
writeout_li (ctx, algo?"Yes":"No", "%s", _("Encryption algorithm supported"));
|
||
if (algo)
|
||
writeout_rem (ctx, _("algorithm: %s"), gnupg_cipher_algo_name (algo));
|
||
|
||
item = find_log_item (ctx, AUDIT_BAD_DATA_CIPHER_ALGO, 0);
|
||
if (item && item->string)
|
||
{
|
||
algo = gcry_cipher_map_name (item->string);
|
||
if (algo)
|
||
writeout_rem (ctx, _("algorithm: %s"), gnupg_cipher_algo_name (algo));
|
||
else if (item->string && !strcmp (item->string, "1.2.840.113549.3.2"))
|
||
writeout_rem (ctx, _("unsupported algorithm: %s"), "RC2");
|
||
else if (item->string)
|
||
writeout_rem (ctx, _("unsupported algorithm: %s"), item->string);
|
||
else
|
||
writeout_rem (ctx, _("seems to be not encrypted"));
|
||
}
|
||
|
||
|
||
for (recpno = 0, item = NULL;
|
||
(item = find_next_log_item (ctx, item, AUDIT_NEW_RECP, 0)); recpno++)
|
||
;
|
||
snprintf (numbuf, sizeof numbuf, "%d", recpno);
|
||
writeout_li (ctx, numbuf, "%s", _("Number of recipients"));
|
||
|
||
/* Loop over all recipients. */
|
||
loopitem = NULL;
|
||
while ((loopitem = find_next_log_item (ctx, loopitem, AUDIT_NEW_RECP, 0)))
|
||
{
|
||
const char *result;
|
||
|
||
recpno = loopitem->have_intvalue? loopitem->intvalue : -1;
|
||
|
||
item = find_next_log_item (ctx, loopitem,
|
||
AUDIT_RECP_RESULT, AUDIT_NEW_RECP);
|
||
if (!item)
|
||
result = "not-used";
|
||
else if (!item->err)
|
||
result = "okay";
|
||
else if (gpg_err_code (item->err) == GPG_ERR_CANCELED)
|
||
result = "skipped";
|
||
else
|
||
result = gpg_strerror (item->err);
|
||
|
||
item = find_next_log_item (ctx, loopitem,
|
||
AUDIT_RECP_NAME, AUDIT_NEW_RECP);
|
||
writeout_li (ctx, result, _("Recipient %d"), recpno);
|
||
if (item && item->string)
|
||
writeout_rem (ctx, "%s", item->string);
|
||
|
||
/* If we have a certificate write out more infos. */
|
||
item = find_next_log_item (ctx, loopitem,
|
||
AUDIT_SAVE_CERT, AUDIT_NEW_RECP);
|
||
if (item && item->cert)
|
||
{
|
||
enter_li (ctx);
|
||
for (idx=0; (name = get_cert_subject (item->cert, idx)); idx++)
|
||
{
|
||
writeout_rem (ctx, "%s", name);
|
||
xfree (name);
|
||
}
|
||
leave_li (ctx);
|
||
}
|
||
}
|
||
|
||
leave_li (ctx);
|
||
}
|
||
|
||
|
||
|
||
/* Process a verification operation's log. */
|
||
static void
|
||
proc_type_verify (audit_ctx_t ctx)
|
||
{
|
||
log_item_t loopitem, item;
|
||
int signo, count, idx, n_good, n_bad;
|
||
char numbuf[35];
|
||
const char *result;
|
||
|
||
/* If there is at least one signature status we claim that the
|
||
verification succeeded. This does not mean that the data has
|
||
verified okay. */
|
||
item = find_log_item (ctx, AUDIT_SIG_STATUS, 0);
|
||
writeout_li (ctx, item?"Yes":"No", "%s", _("Data verification succeeded"));
|
||
enter_li (ctx);
|
||
|
||
item = find_log_item (ctx, AUDIT_GOT_DATA, AUDIT_NEW_SIG);
|
||
writeout_li (ctx, item? "Yes":"No", "%s", _("Data available"));
|
||
if (!item)
|
||
goto leave;
|
||
|
||
item = find_log_item (ctx, AUDIT_NEW_SIG, 0);
|
||
writeout_li (ctx, item? "Yes":"No", "%s", _("Signature available"));
|
||
if (!item)
|
||
goto leave;
|
||
|
||
/* Print info about the used data hashing algorithms. */
|
||
for (idx=0, n_good=n_bad=0; idx < ctx->logused; idx++)
|
||
{
|
||
item = ctx->log + idx;
|
||
if (item->event == AUDIT_NEW_SIG)
|
||
break;
|
||
else if (item->event == AUDIT_DATA_HASH_ALGO)
|
||
n_good++;
|
||
else if (item->event == AUDIT_BAD_DATA_HASH_ALGO)
|
||
n_bad++;
|
||
}
|
||
item = find_log_item (ctx, AUDIT_DATA_HASHING, AUDIT_NEW_SIG);
|
||
if (!item || item->err || !n_good)
|
||
result = "No";
|
||
else if (n_good && !n_bad)
|
||
result = "Yes";
|
||
else
|
||
result = "Some";
|
||
writeout_li (ctx, result, "%s", _("Parsing data succeeded"));
|
||
if (n_good || n_bad)
|
||
{
|
||
for (idx=0; idx < ctx->logused; idx++)
|
||
{
|
||
item = ctx->log + idx;
|
||
if (item->event == AUDIT_NEW_SIG)
|
||
break;
|
||
else if (item->event == AUDIT_DATA_HASH_ALGO)
|
||
writeout_rem (ctx, _("data hash algorithm: %s"),
|
||
gcry_md_algo_name (item->intvalue));
|
||
else if (item->event == AUDIT_BAD_DATA_HASH_ALGO)
|
||
writeout_rem (ctx, _("bad data hash algorithm: %s"),
|
||
item->string? item->string:"?");
|
||
}
|
||
}
|
||
|
||
|
||
/* Loop over all signatures. */
|
||
loopitem = find_log_item (ctx, AUDIT_NEW_SIG, 0);
|
||
assert (loopitem);
|
||
do
|
||
{
|
||
signo = loopitem->have_intvalue? loopitem->intvalue : -1;
|
||
|
||
item = find_next_log_item (ctx, loopitem,
|
||
AUDIT_SIG_STATUS, AUDIT_NEW_SIG);
|
||
writeout_li (ctx, item? item->string:"?", _("Signature %d"), signo);
|
||
item = find_next_log_item (ctx, loopitem,
|
||
AUDIT_SIG_NAME, AUDIT_NEW_SIG);
|
||
if (item)
|
||
writeout_rem (ctx, "%s", item->string);
|
||
|
||
item = find_next_log_item (ctx, loopitem,
|
||
AUDIT_DATA_HASH_ALGO, AUDIT_NEW_SIG);
|
||
if (item)
|
||
writeout_rem (ctx, _("data hash algorithm: %s"),
|
||
gcry_md_algo_name (item->intvalue));
|
||
item = find_next_log_item (ctx, loopitem,
|
||
AUDIT_ATTR_HASH_ALGO, AUDIT_NEW_SIG);
|
||
if (item)
|
||
writeout_rem (ctx, _("attr hash algorithm: %s"),
|
||
gcry_md_algo_name (item->intvalue));
|
||
|
||
enter_li (ctx);
|
||
|
||
/* List the certificate chain. */
|
||
list_certchain (ctx, loopitem, AUDIT_NEW_SIG);
|
||
|
||
/* Show the result of the chain validation. */
|
||
item = find_next_log_item (ctx, loopitem,
|
||
AUDIT_CHAIN_STATUS, AUDIT_NEW_SIG);
|
||
if (item && item->have_err)
|
||
{
|
||
writeout_li (ctx, item->err? "No":"Yes",
|
||
_("Certificate chain valid"));
|
||
if (item->err)
|
||
writeout_rem (ctx, "%s", gpg_strerror (item->err));
|
||
}
|
||
|
||
/* Show whether the root certificate is fine. */
|
||
item = find_next_log_item (ctx, loopitem,
|
||
AUDIT_ROOT_TRUSTED, AUDIT_CHAIN_STATUS);
|
||
if (item)
|
||
{
|
||
writeout_li (ctx, item->err?"No":"Yes", "%s",
|
||
_("Root certificate trustworthy"));
|
||
if (item->err)
|
||
{
|
||
add_helptag (ctx, "gpgsm.root-cert-not-trusted");
|
||
writeout_rem (ctx, "%s", gpg_strerror (item->err));
|
||
list_cert (ctx, item->cert, 0);
|
||
}
|
||
}
|
||
|
||
/* Show result of the CRL/OCSP check. */
|
||
item = find_next_log_item (ctx, loopitem,
|
||
AUDIT_CRL_CHECK, AUDIT_NEW_SIG);
|
||
if (item)
|
||
{
|
||
const char *ok;
|
||
switch (gpg_err_code (item->err))
|
||
{
|
||
case 0: ok = "good"; break;
|
||
case GPG_ERR_TRUE: ok = "n/a"; break;
|
||
case GPG_ERR_CERT_REVOKED: ok = "bad"; break;
|
||
case GPG_ERR_NOT_ENABLED: ok = "disabled"; break;
|
||
case GPG_ERR_NO_CRL_KNOWN:
|
||
ok = _("no CRL found for certificate");
|
||
break;
|
||
case GPG_ERR_CRL_TOO_OLD:
|
||
ok = _("the available CRL is too old");
|
||
break;
|
||
default: ok = gpg_strerror (item->err); break;
|
||
}
|
||
|
||
writeout_li (ctx, ok, "%s", _("CRL/OCSP check of certificates"));
|
||
if (item->err
|
||
&& gpg_err_code (item->err) != GPG_ERR_CERT_REVOKED
|
||
&& gpg_err_code (item->err) != GPG_ERR_NOT_ENABLED)
|
||
add_helptag (ctx, "gpgsm.crl-problem");
|
||
}
|
||
|
||
leave_li (ctx);
|
||
}
|
||
while ((loopitem = find_next_log_item (ctx, loopitem, AUDIT_NEW_SIG, 0)));
|
||
|
||
|
||
leave:
|
||
/* Always list the certificates stored in the signature. */
|
||
item = NULL;
|
||
count = 0;
|
||
while ( ((item = find_next_log_item (ctx, item,
|
||
AUDIT_SAVE_CERT, AUDIT_NEW_SIG))))
|
||
count++;
|
||
snprintf (numbuf, sizeof numbuf, "%d", count);
|
||
writeout_li (ctx, numbuf, _("Included certificates"));
|
||
item = NULL;
|
||
while ( ((item = find_next_log_item (ctx, item,
|
||
AUDIT_SAVE_CERT, AUDIT_NEW_SIG))))
|
||
{
|
||
char *name = get_cert_name (item->cert);
|
||
writeout_rem (ctx, "%s", name);
|
||
xfree (name);
|
||
enter_li (ctx);
|
||
for (idx=0; (name = get_cert_subject (item->cert, idx)); idx++)
|
||
{
|
||
writeout_rem (ctx, "%s", name);
|
||
xfree (name);
|
||
}
|
||
leave_li (ctx);
|
||
}
|
||
leave_li (ctx);
|
||
}
|
||
|
||
|
||
|
||
|
||
/* Print the formatted audit result. THIS IS WORK IN PROGRESS. */
|
||
void
|
||
audit_print_result (audit_ctx_t ctx, estream_t out, int use_html)
|
||
{
|
||
int idx;
|
||
size_t n;
|
||
log_item_t item;
|
||
helptag_t helptag;
|
||
const char *s;
|
||
int show_raw = 0;
|
||
char *orig_codeset;
|
||
|
||
if (!ctx)
|
||
return;
|
||
|
||
orig_codeset = i18n_switchto_utf8 ();
|
||
|
||
/* We use an environment variable to include some debug info in the
|
||
log. */
|
||
if ((s = getenv ("gnupg_debug_audit")))
|
||
show_raw = 1;
|
||
|
||
assert (!ctx->outstream);
|
||
ctx->outstream = out;
|
||
ctx->use_html = use_html;
|
||
ctx->indentlevel = 0;
|
||
clear_helptags (ctx);
|
||
|
||
if (use_html)
|
||
es_fputs ("<div class=\"" GNUPG_NAME "AuditLog\">\n", ctx->outstream);
|
||
|
||
if (!ctx->log || !ctx->logused)
|
||
{
|
||
writeout_para (ctx, _("No audit log entries."));
|
||
goto leave;
|
||
}
|
||
|
||
if (show_raw)
|
||
{
|
||
int maxlen;
|
||
|
||
for (idx=0,maxlen=0; idx < DIM (eventstr_msgidx); idx++)
|
||
{
|
||
n = strlen (eventstr_msgstr + eventstr_msgidx[idx]);
|
||
if (n > maxlen)
|
||
maxlen = n;
|
||
}
|
||
|
||
if (use_html)
|
||
es_fputs ("<pre>\n", out);
|
||
for (idx=0; idx < ctx->logused; idx++)
|
||
{
|
||
es_fprintf (out, "log: %-*s",
|
||
maxlen, event2str (ctx->log[idx].event));
|
||
if (ctx->log[idx].have_intvalue)
|
||
es_fprintf (out, " i=%d", ctx->log[idx].intvalue);
|
||
if (ctx->log[idx].string)
|
||
{
|
||
es_fputs (" s='", out);
|
||
writeout (ctx, ctx->log[idx].string);
|
||
es_fputs ("'", out);
|
||
}
|
||
if (ctx->log[idx].cert)
|
||
es_fprintf (out, " has_cert");
|
||
if (ctx->log[idx].have_err)
|
||
{
|
||
es_fputs (" err='", out);
|
||
writeout (ctx, gpg_strerror (ctx->log[idx].err));
|
||
es_fputs ("'", out);
|
||
}
|
||
es_fputs ("\n", out);
|
||
}
|
||
if (use_html)
|
||
es_fputs ("</pre>\n", out);
|
||
else
|
||
es_fputs ("\n", out);
|
||
}
|
||
|
||
enter_li (ctx);
|
||
switch (ctx->type)
|
||
{
|
||
case AUDIT_TYPE_NONE:
|
||
writeout_li (ctx, NULL, _("Unknown operation"));
|
||
break;
|
||
case AUDIT_TYPE_ENCRYPT:
|
||
proc_type_encrypt (ctx);
|
||
break;
|
||
case AUDIT_TYPE_SIGN:
|
||
proc_type_sign (ctx);
|
||
break;
|
||
case AUDIT_TYPE_DECRYPT:
|
||
proc_type_decrypt (ctx);
|
||
break;
|
||
case AUDIT_TYPE_VERIFY:
|
||
proc_type_verify (ctx);
|
||
break;
|
||
}
|
||
item = find_log_item (ctx, AUDIT_AGENT_READY, 0);
|
||
if (item && item->have_err)
|
||
{
|
||
writeout_li (ctx, item->err? "No":"Yes", "%s", _("Gpg-Agent usable"));
|
||
if (item->err)
|
||
{
|
||
writeout_rem (ctx, "%s", gpg_strerror (item->err));
|
||
add_helptag (ctx, "gnupg.agent-problem");
|
||
}
|
||
}
|
||
item = find_log_item (ctx, AUDIT_DIRMNGR_READY, 0);
|
||
if (item && item->have_err)
|
||
{
|
||
writeout_li (ctx, item->err? "No":"Yes", "%s", _("Dirmngr usable"));
|
||
if (item->err)
|
||
{
|
||
writeout_rem (ctx, "%s", gpg_strerror (item->err));
|
||
add_helptag (ctx, "gnupg.dirmngr-problem");
|
||
}
|
||
}
|
||
leave_li (ctx);
|
||
|
||
|
||
/* Show the help from the collected help tags. */
|
||
if (ctx->helptags)
|
||
{
|
||
if (use_html)
|
||
{
|
||
es_fputs ("<hr/>\n", ctx->outstream);
|
||
if (ctx->helptags->next)
|
||
es_fputs ("<ul>\n", ctx->outstream);
|
||
}
|
||
else
|
||
es_fputs ("\n\n", ctx->outstream);
|
||
}
|
||
for (helptag = ctx->helptags; helptag; helptag = helptag->next)
|
||
{
|
||
char *text;
|
||
|
||
if (use_html && ctx->helptags->next)
|
||
es_fputs ("<li>\n", ctx->outstream);
|
||
|
||
text = gnupg_get_help_string (helptag->name, 0);
|
||
if (text)
|
||
{
|
||
writeout_para (ctx, "%s", text);
|
||
xfree (text);
|
||
}
|
||
else
|
||
writeout_para (ctx, _("No help available for '%s'."), helptag->name);
|
||
if (use_html && ctx->helptags->next)
|
||
es_fputs ("</li>\n", ctx->outstream);
|
||
if (helptag->next)
|
||
es_fputs ("\n", ctx->outstream);
|
||
}
|
||
if (use_html && ctx->helptags && ctx->helptags->next)
|
||
es_fputs ("</ul>\n", ctx->outstream);
|
||
|
||
leave:
|
||
if (use_html)
|
||
es_fputs ("</div>\n", ctx->outstream);
|
||
ctx->outstream = NULL;
|
||
ctx->use_html = 0;
|
||
clear_helptags (ctx);
|
||
i18n_switchback (orig_codeset);
|
||
}
|