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/**
* @file
* Implementation for the main libseaudit object, seaudit_log_t.
*
* @author Jeremy A. Mowery jmowery@tresys.com
* @author Jason Tang jtang@tresys.com
* @author Jeremy Solt jsolt@tresys.com
*
* Copyright (C) 2003-2007 Tresys Technology, LLC
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "seaudit_internal.h"
#include <apol/util.h>
#include <errno.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
seaudit_log_t *seaudit_log_create(seaudit_handle_fn_t fn, void *callback_arg)
{
seaudit_log_t *log = NULL;
int error;
if ((log = calloc(1, sizeof(*log))) == NULL) {
return NULL;
}
log->fn = fn;
log->handle_arg = callback_arg;
if ((log->messages = apol_vector_create(message_free)) == NULL ||
(log->malformed_msgs = apol_vector_create(free)) == NULL ||
(log->models = apol_vector_create(NULL)) == NULL ||
(log->types = apol_bst_create(apol_str_strcmp, free)) == NULL ||
(log->classes = apol_bst_create(apol_str_strcmp, free)) == NULL ||
(log->roles = apol_bst_create(apol_str_strcmp, free)) == NULL ||
(log->users = apol_bst_create(apol_str_strcmp, free)) == NULL ||
(log->perms = apol_bst_create(apol_str_strcmp, free)) == NULL ||
(log->mls_lvl = apol_bst_create(apol_str_strcmp, free)) == NULL ||
(log->mls_clr = apol_bst_create(apol_str_strcmp, free)) == NULL ||
(log->hosts = apol_bst_create(apol_str_strcmp, free)) == NULL
|| (log->bools = apol_bst_create(apol_str_strcmp, free)) == NULL
|| (log->managers = apol_bst_create(apol_str_strcmp, free)) == NULL) {
error = errno;
seaudit_log_destroy(&log);
errno = error;
return NULL;
}
return log;
}
void seaudit_log_destroy(seaudit_log_t ** log)
{
size_t i;
if (log == NULL || *log == NULL) {
return;
}
for (i = 0; i < apol_vector_get_size((*log)->models); i++) {
seaudit_model_t *m = apol_vector_get_element((*log)->models, i);
model_remove_log(m, *log);
}
apol_vector_destroy(&(*log)->messages);
apol_vector_destroy(&(*log)->malformed_msgs);
apol_vector_destroy(&(*log)->models);
apol_bst_destroy(&(*log)->types);
apol_bst_destroy(&(*log)->classes);
apol_bst_destroy(&(*log)->roles);
apol_bst_destroy(&(*log)->users);
apol_bst_destroy(&(*log)->perms);
apol_bst_destroy(&(*log)->hosts);
apol_bst_destroy(&(*log)->bools);
apol_bst_destroy(&(*log)->managers);
apol_bst_destroy(&(*log)->mls_lvl);
apol_bst_destroy(&(*log)->mls_clr);
free(*log);
*log = NULL;
}
void seaudit_log_clear(seaudit_log_t * log)
{
if (log == NULL) {
errno = EINVAL;
return;
}
apol_vector_destroy(&log->messages);
apol_vector_destroy(&log->malformed_msgs);
apol_bst_destroy(&log->types);
apol_bst_destroy(&log->classes);
apol_bst_destroy(&log->roles);
apol_bst_destroy(&log->users);
apol_bst_destroy(&log->perms);
apol_bst_destroy(&log->hosts);
apol_bst_destroy(&log->bools);
apol_bst_destroy(&log->managers);
apol_bst_destroy(&log->mls_lvl);
apol_bst_destroy(&log->mls_clr);
if ((log->messages = apol_vector_create(message_free)) == NULL ||
(log->malformed_msgs = apol_vector_create(free)) == NULL ||
(log->types = apol_bst_create(apol_str_strcmp, free)) == NULL ||
(log->classes = apol_bst_create(apol_str_strcmp, free)) == NULL ||
(log->roles = apol_bst_create(apol_str_strcmp, free)) == NULL ||
(log->users = apol_bst_create(apol_str_strcmp, free)) == NULL ||
(log->perms = apol_bst_create(apol_str_strcmp, free)) == NULL ||
(log->mls_lvl = apol_bst_create(apol_str_strcmp, free)) == NULL ||
(log->mls_clr = apol_bst_create(apol_str_strcmp, free)) == NULL ||
(log->hosts = apol_bst_create(apol_str_strcmp, free)) == NULL
|| (log->bools = apol_bst_create(apol_str_strcmp, free)) == NULL
|| (log->managers = apol_bst_create(apol_str_strcmp, free)) == NULL) {
/* hopefully will never get here... */
return;
}
for (size_t i = 0; i < apol_vector_get_size(log->models); i++) {
seaudit_model_t *m = apol_vector_get_element(log->models, i);
model_notify_log_changed(m, log);
}
}
apol_vector_t *seaudit_log_get_users(const seaudit_log_t * log)
{
if (log == NULL) {
errno = EINVAL;
return NULL;
}
return apol_bst_get_vector(log->users, 0);
}
apol_vector_t *seaudit_log_get_roles(const seaudit_log_t * log)
{
if (log == NULL) {
errno = EINVAL;
return NULL;
}
return apol_bst_get_vector(log->roles, 0);
}
apol_vector_t *seaudit_log_get_types(const seaudit_log_t * log)
{
if (log == NULL) {
errno = EINVAL;
return NULL;
}
return apol_bst_get_vector(log->types, 0);
}
apol_vector_t *seaudit_log_get_mls_lvl(const seaudit_log_t * log)
{
if (log == NULL) {
errno = EINVAL;
return NULL;
}
return apol_bst_get_vector(log->mls_lvl, 0);
}
apol_vector_t *seaudit_log_get_mls_clr(const seaudit_log_t * log)
{
if (log == NULL) {
errno = EINVAL;
return NULL;
}
return apol_bst_get_vector(log->mls_clr, 0);
}
apol_vector_t *seaudit_log_get_classes(const seaudit_log_t * log)
{
if (log == NULL) {
errno = EINVAL;
return NULL;
}
return apol_bst_get_vector(log->classes, 0);
}
/******************** protected functions below ********************/
int log_append_model(seaudit_log_t * log, seaudit_model_t * model)
{
if (apol_vector_append(log->models, model) < 0) {
int error = errno;
ERR(log, "%s", strerror(error));
errno = error;
return -1;
}
return 0;
}
void log_remove_model(seaudit_log_t * log, seaudit_model_t * model)
{
size_t i;
if (apol_vector_get_index(log->models, model, NULL, NULL, &i) == 0) {
apol_vector_remove(log->models, i);
}
}
const apol_vector_t *log_get_messages(const seaudit_log_t * log)
{
return log->messages;
}
const apol_vector_t *log_get_malformed_messages(const seaudit_log_t * log)
{
return log->malformed_msgs;
}
static void seaudit_handle_default_callback(void *arg __attribute__ ((unused)),
const seaudit_log_t * log __attribute__ ((unused)),
int level, const char *fmt, va_list va_args)
{
switch (level) {
case SEAUDIT_MSG_INFO:
{
/* by default do not display these messages */
return;
}
case SEAUDIT_MSG_WARN:
{
fprintf(stderr, "WARNING: ");
break;
}
case SEAUDIT_MSG_ERR:
default:
{
fprintf(stderr, "ERROR: ");
break;
}
}
vfprintf(stderr, fmt, va_args);
fprintf(stderr, "\n");
}
void seaudit_handle_msg(const seaudit_log_t * log, int level, const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
if (log == NULL || log->fn == NULL) {
seaudit_handle_default_callback(NULL, NULL, level, fmt, ap);
} else {
log->fn(log->handle_arg, log, level, fmt, ap);
}
va_end(ap);
}
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