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/*
* Copyright (C) 2014-2016 Firejail Authors
*
* This file is part of firejail project
*
* 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 Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "firejail.h"
#include <sys/types.h>
#include <sys/stat.h>
static void set_privileges(void) {
struct stat s;
if (stat("/proc/sys/kernel/grsecurity", &s) == 0) {
EUID_ROOT();
// elevate privileges
if (setreuid(0, 0))
errExit("setreuid");
if (setregid(0, 0))
errExit("setregid");
}
else
drop_privs(1);
}
static char *get_firemon_path(const char *cmd) {
assert(cmd);
// start the argv[0] program in a new sandbox
char *firemon;
if (asprintf(&firemon, "%s/bin/firemon %s", PREFIX, cmd) == -1)
errExit("asprintf");
return firemon;
}
void top(void) {
EUID_ASSERT();
drop_privs(1);
char *cmd = get_firemon_path("--top");
char *arg[4];
arg[0] = "bash";
arg[1] = "-c";
arg[2] = cmd;
arg[3] = NULL;
execvp("/bin/bash", arg);
}
void netstats(void) {
EUID_ASSERT();
set_privileges();
char *cmd = get_firemon_path("--netstats");
char *arg[4];
arg[0] = "bash";
arg[1] = "-c";
arg[2] = cmd;
arg[3] = NULL;
execvp("/bin/bash", arg);
}
void list(void) {
EUID_ASSERT();
drop_privs(1);
char *cmd = get_firemon_path("--list");
char *arg[4];
arg[0] = "bash";
arg[1] = "-c";
arg[2] = cmd;
arg[3] = NULL;
execvp("/bin/bash", arg);
}
void tree(void) {
EUID_ASSERT();
drop_privs(1);
char *cmd = get_firemon_path("--tree");
char *arg[4];
arg[0] = "bash";
arg[1] = "-c";
arg[2] = cmd;
arg[3] = NULL;
execvp("/bin/bash", arg);
}
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