diff options
Diffstat (limited to 'executor/common_bsd.h')
| -rw-r--r-- | executor/common_bsd.h | 28 |
1 files changed, 22 insertions, 6 deletions
diff --git a/executor/common_bsd.h b/executor/common_bsd.h index d39d2aded..e483a41d1 100644 --- a/executor/common_bsd.h +++ b/executor/common_bsd.h @@ -37,7 +37,7 @@ static uintptr_t syz_open_pts(void) #endif // GOOS_openbsd -#if GOOS_freebsd || GOOS_openbsd +#if GOOS_freebsd || GOOS_openbsd || GOOS_netbsd #if SYZ_EXECUTOR || SYZ_TUN_ENABLE @@ -123,7 +123,18 @@ static void initialize_tun(int tun_id) char tun_device[sizeof(TUN_DEVICE)]; snprintf_check(tun_device, sizeof(tun_device), TUN_DEVICE, tun_id); + + char tun_iface[sizeof(TUN_IFACE)]; + snprintf_check(tun_iface, sizeof(tun_iface), TUN_IFACE, tun_id); + +#if GOOS_netbsd + // open(2) doesn't create an new tap/tun interface node + // so we use ifconfig to create the node. Might be casued due to regression + execute_command(0, "ifconfig %s destroy", tun_iface); + execute_command(0, "ifconfig %s create", tun_iface); +#else execute_command(0, "ifconfig %s destroy", tun_device); +#endif tunfd = open(tun_device, O_RDWR | O_NONBLOCK); #if GOOS_freebsd @@ -148,31 +159,36 @@ static void initialize_tun(int tun_id) close(tunfd); tunfd = kTunFd; - char tun_iface[sizeof(TUN_IFACE)]; - snprintf_check(tun_iface, sizeof(tun_iface), TUN_IFACE, tun_id); - char local_mac[sizeof(LOCAL_MAC)]; snprintf_check(local_mac, sizeof(local_mac), LOCAL_MAC); + + // Set the MAC address of the interface to LOCAL_MAC #if GOOS_openbsd execute_command(1, "ifconfig %s lladdr %s", tun_iface, local_mac); +#elif GOOS_netbsd + execute_command(1, "ifconfig %s link %s", tun_iface, local_mac); #else execute_command(1, "ifconfig %s ether %s", tun_iface, local_mac); #endif + // Setting up a static ip for the interface char local_ipv4[sizeof(LOCAL_IPV4)]; snprintf_check(local_ipv4, sizeof(local_ipv4), LOCAL_IPV4, tun_id); execute_command(1, "ifconfig %s inet %s netmask 255.255.255.0", tun_iface, local_ipv4); + // Creates an ARP table entry for the remote ip and MAC address char remote_mac[sizeof(REMOTE_MAC)]; char remote_ipv4[sizeof(REMOTE_IPV4)]; snprintf_check(remote_mac, sizeof(remote_mac), REMOTE_MAC); snprintf_check(remote_ipv4, sizeof(remote_ipv4), REMOTE_IPV4, tun_id); execute_command(0, "arp -s %s %s", remote_ipv4, remote_mac); + // Set up a static ipv6 address for the interface char local_ipv6[sizeof(LOCAL_IPV6)]; snprintf_check(local_ipv6, sizeof(local_ipv6), LOCAL_IPV6, tun_id); execute_command(1, "ifconfig %s inet6 %s", tun_iface, local_ipv6); + // Registers an NDP entry for the remote MAC with the remote ipv6 address char remote_ipv6[sizeof(REMOTE_IPV6)]; snprintf_check(remote_ipv6, sizeof(remote_ipv6), REMOTE_IPV6, tun_id); execute_command(0, "ndp -s %s%%%s %s", remote_ipv6, tun_iface, remote_mac); @@ -332,7 +348,7 @@ static void loop(); static int do_sandbox_none(void) { sandbox_common(); -#if (GOOS_freebsd || GOOS_openbsd) && (SYZ_EXECUTOR || SYZ_TUN_ENABLE) +#if (GOOS_freebsd || GOOS_openbsd || GOOS_netbsd) && (SYZ_EXECUTOR || SYZ_TUN_ENABLE) initialize_tun(procid); #endif loop(); @@ -367,7 +383,7 @@ static int do_sandbox_setuid(void) return wait_for_loop(pid); sandbox_common(); -#if (GOOS_freebsd || GOOS_openbsd) && (SYZ_EXECUTOR || SYZ_TUN_ENABLE) +#if (GOOS_freebsd || GOOS_openbsd || GOOS_netbsd) && (SYZ_EXECUTOR || SYZ_TUN_ENABLE) initialize_tun(procid); #endif |