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/*
* convert-audit-log.c
*
* TOMOYO Linux's utilities.
*
* Copyright (C) 2005-2009 NTT DATA CORPORATION
*
* Version: 1.7.1 2009/11/11
*
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
static char buffer[65536];
static char *cond = NULL;
static int cond_len = 0;
static void realloc_buffer(const int len)
{
cond = realloc(cond, cond_len + len);
if (!cond)
exit(1);
}
static void handle_task_condition(void)
{
while (fscanf(stdin, "%65534s", buffer) == 1 && strcmp(buffer, "}")) {
realloc_buffer(strlen(buffer) + 7);
cond_len += sprintf(cond + cond_len, " task.%s", buffer);
}
}
static void handle_path_condition(const char *path)
{
const int len0 = strlen(path) + 2;
while (fscanf(stdin, "%65534s", buffer) == 1 && strcmp(buffer, "}")) {
realloc_buffer(len0 + strlen(buffer));
cond_len += sprintf(cond + cond_len, " %s%s", path, buffer);
}
}
static void handle_argv_condition(void)
{
int i = 0;
while (fscanf(stdin, "%65534s", buffer) == 1 && strcmp(buffer, "}")
&& strcmp(buffer, "...")) {
realloc_buffer(strlen(buffer) + 34);
cond_len += sprintf(cond + cond_len, " exec.argv[%u]=%s", i++,
buffer);
}
}
static void handle_envp_condition(void)
{
while (fscanf(stdin, "%65534s", buffer) == 1 && strcmp(buffer, "}")
&& strcmp(buffer, "...")) {
char *cp = strchr(buffer, '=');
if (!cp)
break;
realloc_buffer(strlen(buffer) + 16);
*cp++ = '\0';
cond_len += sprintf(cond + cond_len, " exec.envp[%s\"]=\"%s",
buffer, cp);
}
}
static void handle_exec_condition(void)
{
while (fscanf(stdin, "%65534s", buffer) == 1 && strcmp(buffer, "}")) {
if (!strcmp(buffer, "argv[]={"))
handle_argv_condition();
else if (!strcmp(buffer, "envp[]={"))
handle_envp_condition();
else {
realloc_buffer(strlen(buffer) + 7);
cond_len += sprintf(cond + cond_len, " exec.%s",
buffer);
}
}
}
int main(int argc, char *argv[])
{
char *domainname = NULL;
memset(buffer, 0, sizeof(buffer));
if (argc > 1) {
fprintf(stderr, "Usage: %s < grant_log or reject_log\n",
argv[0]);
return 0;
}
while (fscanf(stdin, "%65534s", buffer) == 1) {
if (!strcmp(buffer, "task={"))
handle_task_condition();
else if (!strcmp(buffer, "path1={"))
handle_path_condition("path1.");
else if (!strcmp(buffer, "path1.parent={"))
handle_path_condition("path1.parent.");
else if (!strcmp(buffer, "path2={"))
handle_path_condition("path2.");
else if (!strcmp(buffer, "path2.parent={"))
handle_path_condition("path2.parent.");
else if (!strcmp(buffer, "path2.parent={"))
handle_path_condition("path2.parent.");
else if (!strcmp(buffer, "exec={"))
handle_exec_condition();
else if (!strncmp(buffer, "symlink.target=", 15)) {
realloc_buffer(strlen(buffer) + 2);
cond_len += sprintf(cond + cond_len, " %s", buffer);
} else if (!strcmp(buffer, "<kernel>")) {
char *cp;
if (!fgets(buffer, sizeof(buffer) - 1, stdin) ||
!strchr(buffer, '\n'))
break;
free(domainname);
domainname = strdup(buffer);
if (!domainname)
break;
if (!fgets(buffer, sizeof(buffer) - 1, stdin))
break;
cp = strstr(buffer, " if ");
if (!cp)
cp = strchr(buffer, '\n');
if (!cp)
break;
*cp = '\0';
if (!strncmp(buffer, "use_profile ", 12) ||
!strncmp(buffer, "execute_handler ", 16) ||
!strncmp(buffer, "denied_execute_handler ", 23)) {
cond_len = 0;
continue;
}
printf("<kernel>%s", domainname);
printf("%s", buffer);
if (cond_len) {
printf(" if%s", cond);
cond_len = 0;
}
putchar('\n');
}
}
free(domainname);
free(cond);
return 0;
}
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