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/**
* @file
* Command line tool for processing SELinux audit logs and generating
* a concise report containing standard information as well as
* customized information using seaudit views. Reports are rendered
* in either HTML or plain text. Future support will provide
* rendering into XML. The HTML report can be formatted by providing
* an alternate stylesheet file or by configuring the default
* stylesheet. This tool also provides the option for including
* malformed strings within the report.
*
* @author Jeremy A. Mowery jmowery@tresys.com
* @author Jason Tang jtang@tresys.com
*
* Copyright (C) 2004-2007 Tresys Technology, LLC
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* This program 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, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <config.h>
#include <seaudit/log.h>
#include <seaudit/parse.h>
#include <seaudit/report.h>
#include <apol/vector.h>
#include <errno.h>
#include <getopt.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define COPYRIGHT_INFO "Copyright (C) 2004-2007 Tresys Technology, LLC"
enum opts
{
OPT_HTML = 256, OPT_STYLESHEET
};
static struct option const longopts[] = {
{"html", no_argument, NULL, OPT_HTML},
{"malformed", no_argument, NULL, 'm'},
{"output", required_argument, NULL, 'o'},
{"stylesheet", required_argument, NULL, OPT_STYLESHEET},
{"stdin", no_argument, NULL, 's'},
{"config", required_argument, NULL, 'c'},
{"help", no_argument, NULL, 'h'},
{"version", no_argument, NULL, 'V'},
{NULL, 0, NULL, 0}
};
/**
* Vector of seaudit_log_t, corresponding to each of the log files to
* process.
*/
static apol_vector_t *logs = NULL;
/**
* Error reporting log handler.
*/
static seaudit_log_t *first_log = NULL;
/**
* Model that incorporates all of the logs within the logs vector.
*/
static seaudit_model_t *model = NULL;
/**
* Report object for the above model.
*/
static seaudit_report_t *report = NULL;
/**
* Destination file for the seaudit report, or NULL to write to
* standard output.
*/
static char *outfile = NULL;
static void seaudit_report_info_usage(const char *program_name, int brief)
{
printf("Usage: %s [OPTIONS] LOGFILE ...\n\n", program_name);
if (brief) {
printf("\tTry %s --help for more help.\n\n", program_name);
return;
}
printf("Generate a customized SELinux log report.\n\n");
printf(" -s, --stdin read log data from standard input\n");
printf(" -m, --malformed include malformed log messages\n");
printf(" -o FILE, --output=FILE output to FILE\n");
printf(" --config=FILE read configuration from FILE\n");
printf(" --html set output format to HTML\n");
printf(" --stylesheet=FILE HTML style sheet for formatting HTML report\n");
printf(" (ignored if --html is not given)\n");
printf(" -h, --help print this help text and exit\n");
printf(" -V, --version print version information and exit\n");
printf("\n");
printf("Default style sheet is at %s.\n", APOL_INSTALL_DIR);
}
static void parse_command_line_args(int argc, char **argv)
{
int optc, i;
int do_malformed = 0, do_style = 0, read_stdin = 0;
seaudit_report_format_e format = SEAUDIT_REPORT_FORMAT_TEXT;
char *configfile = NULL, *stylesheet = NULL;
/* get option arguments */
while ((optc = getopt_long(argc, argv, "smo:c:hV", longopts, NULL)) != -1) {
switch (optc) {
case 's': /* read LOGFILES from standard input */
read_stdin = 1;
break;
case 'm': /* include malformed messages */
do_malformed = 1;
break;
case 'o': /* output file name */
outfile = optarg;
break;
case 'c': /* Alternate config file path */
configfile = optarg;
break;
case OPT_HTML: /* Set the output to format to html */
format = SEAUDIT_REPORT_FORMAT_HTML;
do_style = 1;
break;
case OPT_STYLESHEET: /* HTML stylesheet file path */
stylesheet = optarg;
do_style = 1;
break;
case 'h':
/* display help */
seaudit_report_info_usage(argv[0], 0);
exit(0);
case 'V':
/* display version */
printf("seaudit-report %s\n%s\n", VERSION, COPYRIGHT_INFO);
exit(0);
default:
/* display usage and handle error */
seaudit_report_info_usage(argv[0], 1);
exit(-1);
}
}
/* Throw warning if a stylesheet was specified, but the --html
* option was not. */
if (stylesheet != NULL && format != SEAUDIT_REPORT_FORMAT_HTML) {
fprintf(stderr, "Warning: The --html option was not specified.\n");
exit(-1);
}
if (!read_stdin && optind >= argc) {
/* display usage and handle error */
seaudit_report_info_usage(argv[0], 1);
exit(-1);
}
if ((model = seaudit_model_create("seaudit-report", NULL)) == NULL) {
exit(-1);
}
if ((first_log = seaudit_log_create(NULL, NULL)) == NULL || seaudit_model_append_log(model, first_log) < 0) {
fprintf(stderr, "ERROR: %s\n", strerror(errno));
exit(-1);
}
if ((logs = apol_vector_create(NULL)) == NULL || apol_vector_append(logs, first_log) < 0) {
fprintf(stderr, "ERROR: %s\n", strerror(errno));
exit(-1);
}
if (read_stdin) {
/* Ensure that logfiles were not specified in addition
* to the standard-in option */
if (optind < argc) {
fprintf(stderr, "WARNING: %s\n", "Command line filename(s) will be ignored. Reading from stdin.");
}
if (seaudit_log_parse(first_log, stdin) < 0) {
exit(-1);
}
} else {
/* Parse given filenames */
FILE *f;
seaudit_log_t *l;
if ((f = fopen(argv[optind], "r")) == NULL) {
fprintf(stderr, "ERROR: %s\n", strerror(errno));
exit(-1);
}
if (seaudit_log_parse(first_log, f) < 0) {
exit(-1);
}
fclose(f);
for (i = optind + 1; i < argc; i++) {
if ((l = seaudit_log_create(NULL, NULL)) == NULL || seaudit_model_append_log(model, l) < 0) {
exit(-1);
}
if (apol_vector_append(logs, l) < 0) {
fprintf(stderr, "ERROR: %s\n", strerror(errno));
exit(-1);
}
if ((f = fopen(argv[i], "r")) == NULL) {
fprintf(stderr, "ERROR: %s\n", strerror(errno));
exit(-1);
}
if (seaudit_log_parse(l, f) < 0) {
exit(-1);
}
fclose(f);
}
}
if ((report = seaudit_report_create(model)) == NULL ||
seaudit_report_set_format(first_log, report, format) < 0 ||
seaudit_report_set_configuration(first_log, report, configfile) < 0 ||
seaudit_report_set_stylesheet(first_log, report, stylesheet, do_style) < 0 ||
seaudit_report_set_malformed(first_log, report, do_malformed) < 0) {
exit(-1);
}
}
int main(int argc, char **argv)
{
size_t i;
parse_command_line_args(argc, argv);
if (seaudit_report_write(first_log, report, outfile) < 0) {
return -1;
}
seaudit_report_destroy(&report);
seaudit_model_destroy(&model);
for (i = 0; i < apol_vector_get_size(logs); i++) {
seaudit_log_t *l = apol_vector_get_element(logs, i);
seaudit_log_destroy(&l);
}
apol_vector_destroy(&logs);
return 0;
}
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