// https://syzkaller.appspot.com/bug?id=00e7f2f74d18727ae04d47f616dcf919a0314f6b
// autogenerated by syzkaller (http://github.com/google/syzkaller)

#define _GNU_SOURCE
#include <arpa/inet.h>
#include <endian.h>
#include <errno.h>
#include <fcntl.h>
#include <linux/if.h>
#include <linux/if_ether.h>
#include <linux/if_tun.h>
#include <linux/ip.h>
#include <linux/tcp.h>
#include <net/if_arp.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/ioctl.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/uio.h>
#include <unistd.h>

__attribute__((noreturn)) static void doexit(int status)
{
  volatile unsigned i;
  syscall(__NR_exit_group, status);
  for (i = 0;; i++) {
  }
}
#include <stdint.h>
#include <string.h>

const int kFailStatus = 67;
const int kRetryStatus = 69;

static void fail(const char* msg, ...)
{
  int e = errno;
  va_list args;
  va_start(args, msg);
  vfprintf(stderr, msg, args);
  va_end(args);
  fprintf(stderr, " (errno %d)\n", e);
  doexit((e == ENOMEM || e == EAGAIN) ? kRetryStatus : kFailStatus);
}

static void vsnprintf_check(char* str, size_t size, const char* format,
                            va_list args)
{
  int rv;

  rv = vsnprintf(str, size, format, args);
  if (rv < 0)
    fail("tun: snprintf failed");
  if ((size_t)rv >= size)
    fail("tun: string '%s...' doesn't fit into buffer", str);
}

static void snprintf_check(char* str, size_t size, const char* format, ...)
{
  va_list args;

  va_start(args, format);
  vsnprintf_check(str, size, format, args);
  va_end(args);
}

#define COMMAND_MAX_LEN 128
#define PATH_PREFIX                                                            \
  "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin "
#define PATH_PREFIX_LEN (sizeof(PATH_PREFIX) - 1)

static void execute_command(bool panic, const char* format, ...)
{
  va_list args;
  char command[PATH_PREFIX_LEN + COMMAND_MAX_LEN];
  int rv;

  va_start(args, format);
  memcpy(command, PATH_PREFIX, PATH_PREFIX_LEN);
  vsnprintf_check(command + PATH_PREFIX_LEN, COMMAND_MAX_LEN, format, args);
  rv = system(command);
  if (panic && rv != 0)
    fail("tun: command \"%s\" failed with code %d", &command[0], rv);

  va_end(args);
}

static int tunfd = -1;
static int tun_frags_enabled;

#define SYZ_TUN_MAX_PACKET_SIZE 1000

#define MAX_PIDS 32
#define ADDR_MAX_LEN 32

#define LOCAL_MAC "aa:aa:aa:aa:%02hx:aa"
#define REMOTE_MAC "aa:aa:aa:aa:%02hx:bb"

#define LOCAL_IPV4 "172.20.%d.170"
#define REMOTE_IPV4 "172.20.%d.187"

#define LOCAL_IPV6 "fe80::%02hx:aa"
#define REMOTE_IPV6 "fe80::%02hx:bb"

#define IFF_NAPI 0x0010
#define IFF_NAPI_FRAGS 0x0020

static void initialize_tun(int id)
{
  if (id >= MAX_PIDS)
    fail("tun: no more than %d executors", MAX_PIDS);

  tunfd = open("/dev/net/tun", O_RDWR | O_NONBLOCK);
  if (tunfd == -1) {
    printf("tun: can't open /dev/net/tun: please enable CONFIG_TUN=y\n");
    printf("otherwise fuzzing or reproducing might not work as intended\n");
    return;
  }

  char iface[IFNAMSIZ];
  snprintf_check(iface, sizeof(iface), "syz%d", id);

  struct ifreq ifr;
  memset(&ifr, 0, sizeof(ifr));
  strncpy(ifr.ifr_name, iface, IFNAMSIZ);
  ifr.ifr_flags = IFF_TAP | IFF_NO_PI | IFF_NAPI | IFF_NAPI_FRAGS;
  if (ioctl(tunfd, TUNSETIFF, (void*)&ifr) < 0) {
    ifr.ifr_flags = IFF_TAP | IFF_NO_PI;
    if (ioctl(tunfd, TUNSETIFF, (void*)&ifr) < 0)
      fail("tun: ioctl(TUNSETIFF) failed");
  }
  if (ioctl(tunfd, TUNGETIFF, (void*)&ifr) < 0)
    fail("tun: ioctl(TUNGETIFF) failed");
  tun_frags_enabled = (ifr.ifr_flags & IFF_NAPI_FRAGS) != 0;

  char local_mac[ADDR_MAX_LEN];
  snprintf_check(local_mac, sizeof(local_mac), LOCAL_MAC, id);
  char remote_mac[ADDR_MAX_LEN];
  snprintf_check(remote_mac, sizeof(remote_mac), REMOTE_MAC, id);

  char local_ipv4[ADDR_MAX_LEN];
  snprintf_check(local_ipv4, sizeof(local_ipv4), LOCAL_IPV4, id);
  char remote_ipv4[ADDR_MAX_LEN];
  snprintf_check(remote_ipv4, sizeof(remote_ipv4), REMOTE_IPV4, id);

  char local_ipv6[ADDR_MAX_LEN];
  snprintf_check(local_ipv6, sizeof(local_ipv6), LOCAL_IPV6, id);
  char remote_ipv6[ADDR_MAX_LEN];
  snprintf_check(remote_ipv6, sizeof(remote_ipv6), REMOTE_IPV6, id);

  execute_command(1, "sysctl -w net.ipv6.conf.%s.accept_dad=0", iface);

  execute_command(1, "sysctl -w net.ipv6.conf.%s.router_solicitations=0",
                  iface);

  execute_command(1, "ip link set dev %s address %s", iface, local_mac);
  execute_command(1, "ip addr add %s/24 dev %s", local_ipv4, iface);
  execute_command(1, "ip -6 addr add %s/120 dev %s", local_ipv6, iface);
  execute_command(1, "ip neigh add %s lladdr %s dev %s nud permanent",
                  remote_ipv4, remote_mac, iface);
  execute_command(1, "ip -6 neigh add %s lladdr %s dev %s nud permanent",
                  remote_ipv6, remote_mac, iface);
  execute_command(1, "ip link set dev %s up", iface);
}

#define DEV_IPV4 "172.20.%d.%d"
#define DEV_IPV6 "fe80::%02hx:%02hx"
#define DEV_MAC "aa:aa:aa:aa:%02hx:%02hx"

static void initialize_netdevices(int id)
{
  unsigned i;
  const char* devtypes[] = {"ip6gretap", "bridge", "vcan"};
  const char* devnames[] = {"lo",       "sit0",    "bridge0", "vcan0",
                            "tunl0",    "gre0",    "gretap0", "ip_vti0",
                            "ip6_vti0", "ip6tnl0", "ip6gre0", "ip6gretap0",
                            "erspan0"};

  for (i = 0; i < sizeof(devtypes) / (sizeof(devtypes[0])); i++)
    execute_command(0, "ip link add dev %s0 type %s", devtypes[i], devtypes[i]);
  for (i = 0; i < sizeof(devnames) / (sizeof(devnames[0])); i++) {
    char addr[ADDR_MAX_LEN];
    snprintf_check(addr, sizeof(addr), DEV_IPV4, id, id + 10);
    execute_command(0, "ip -4 addr add %s/24 dev %s", addr, devnames[i]);
    snprintf_check(addr, sizeof(addr), DEV_IPV6, id, id + 10);
    execute_command(0, "ip -6 addr add %s/120 dev %s", addr, devnames[i]);
    snprintf_check(addr, sizeof(addr), DEV_MAC, id, id + 10);
    execute_command(0, "ip link set dev %s address %s", devnames[i], addr);
    execute_command(0, "ip link set dev %s up", devnames[i]);
  }
}

static void setup_tun(uint64_t pid, bool enable_tun)
{
  if (enable_tun) {
    initialize_tun(pid);
    initialize_netdevices(pid);
  }
}

long r[1];
void loop()
{
  memset(r, -1, sizeof(r));
  syscall(__NR_mmap, 0x20000000, 0x18000, 3, 0x32, -1, 0);
  r[0] = syscall(__NR_socket, 2, 0x80005, 0);
  memcpy((void*)0x20013c90, "\x66\x69\x6c\x74\x65\x72\x00\x00\x00\x00\x00\x00"
                            "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
                            "\x00\x00\x00\x00\x00\x00\x00\x00",
         32);
  *(uint32_t*)0x20013cb0 = 0xe;
  *(uint32_t*)0x20013cb4 = 4;
  *(uint32_t*)0x20013cb8 = 0x2e8;
  *(uint32_t*)0x20013cbc = -1;
  *(uint32_t*)0x20013cc0 = 0;
  *(uint32_t*)0x20013cc4 = 0;
  *(uint32_t*)0x20013cc8 = 0;
  *(uint32_t*)0x20013ccc = -1;
  *(uint32_t*)0x20013cd0 = -1;
  *(uint32_t*)0x20013cd4 = 0;
  *(uint32_t*)0x20013cd8 = 0;
  *(uint32_t*)0x20013cdc = 0;
  *(uint32_t*)0x20013ce0 = -1;
  *(uint32_t*)0x20013ce4 = 4;
  *(uint64_t*)0x20013ce8 = 0x20001000;
  *(uint8_t*)0x20013cf0 = 0;
  *(uint8_t*)0x20013cf1 = 0;
  *(uint8_t*)0x20013cf2 = 0;
  *(uint8_t*)0x20013cf3 = 0;
  *(uint8_t*)0x20013cf4 = 0;
  *(uint8_t*)0x20013cf5 = 0;
  *(uint8_t*)0x20013cf6 = 0;
  *(uint8_t*)0x20013cf7 = 0;
  *(uint8_t*)0x20013cf8 = 0;
  *(uint8_t*)0x20013cf9 = 0;
  *(uint8_t*)0x20013cfa = 0;
  *(uint8_t*)0x20013cfb = 0;
  *(uint8_t*)0x20013cfc = 0;
  *(uint8_t*)0x20013cfd = 0;
  *(uint8_t*)0x20013cfe = 0;
  *(uint8_t*)0x20013cff = 0;
  *(uint8_t*)0x20013d00 = 0;
  *(uint8_t*)0x20013d01 = 0;
  *(uint8_t*)0x20013d02 = 0;
  *(uint8_t*)0x20013d03 = 0;
  *(uint8_t*)0x20013d04 = 0;
  *(uint8_t*)0x20013d05 = 0;
  *(uint8_t*)0x20013d06 = 0;
  *(uint8_t*)0x20013d07 = 0;
  *(uint8_t*)0x20013d08 = 0;
  *(uint8_t*)0x20013d09 = 0;
  *(uint8_t*)0x20013d0a = 0;
  *(uint8_t*)0x20013d0b = 0;
  *(uint8_t*)0x20013d0c = 0;
  *(uint8_t*)0x20013d0d = 0;
  *(uint8_t*)0x20013d0e = 0;
  *(uint8_t*)0x20013d0f = 0;
  *(uint8_t*)0x20013d10 = 0;
  *(uint8_t*)0x20013d11 = 0;
  *(uint8_t*)0x20013d12 = 0;
  *(uint8_t*)0x20013d13 = 0;
  *(uint8_t*)0x20013d14 = 0;
  *(uint8_t*)0x20013d15 = 0;
  *(uint8_t*)0x20013d16 = 0;
  *(uint8_t*)0x20013d17 = 0;
  *(uint8_t*)0x20013d18 = 0;
  *(uint8_t*)0x20013d19 = 0;
  *(uint8_t*)0x20013d1a = 0;
  *(uint8_t*)0x20013d1b = 0;
  *(uint8_t*)0x20013d1c = 0;
  *(uint8_t*)0x20013d1d = 0;
  *(uint8_t*)0x20013d1e = 0;
  *(uint8_t*)0x20013d1f = 0;
  *(uint8_t*)0x20013d20 = 0;
  *(uint8_t*)0x20013d21 = 0;
  *(uint8_t*)0x20013d22 = 0;
  *(uint8_t*)0x20013d23 = 0;
  *(uint8_t*)0x20013d24 = 0;
  *(uint8_t*)0x20013d25 = 0;
  *(uint8_t*)0x20013d26 = 0;
  *(uint8_t*)0x20013d27 = 0;
  *(uint8_t*)0x20013d28 = 0;
  *(uint8_t*)0x20013d29 = 0;
  *(uint8_t*)0x20013d2a = 0;
  *(uint8_t*)0x20013d2b = 0;
  *(uint8_t*)0x20013d2c = 0;
  *(uint8_t*)0x20013d2d = 0;
  *(uint8_t*)0x20013d2e = 0;
  *(uint8_t*)0x20013d2f = 0;
  *(uint8_t*)0x20013d30 = 0;
  *(uint8_t*)0x20013d31 = 0;
  *(uint8_t*)0x20013d32 = 0;
  *(uint8_t*)0x20013d33 = 0;
  *(uint8_t*)0x20013d34 = 0;
  *(uint8_t*)0x20013d35 = 0;
  *(uint8_t*)0x20013d36 = 0;
  *(uint8_t*)0x20013d37 = 0;
  *(uint8_t*)0x20013d38 = 0;
  *(uint8_t*)0x20013d39 = 0;
  *(uint8_t*)0x20013d3a = 0;
  *(uint8_t*)0x20013d3b = 0;
  *(uint8_t*)0x20013d3c = 0;
  *(uint8_t*)0x20013d3d = 0;
  *(uint8_t*)0x20013d3e = 0;
  *(uint8_t*)0x20013d3f = 0;
  *(uint8_t*)0x20013d40 = 0;
  *(uint8_t*)0x20013d41 = 0;
  *(uint8_t*)0x20013d42 = 0;
  *(uint8_t*)0x20013d43 = 0;
  *(uint32_t*)0x20013d44 = 0;
  *(uint16_t*)0x20013d48 = 0x70;
  *(uint16_t*)0x20013d4a = 0x98;
  *(uint32_t*)0x20013d4c = 0;
  *(uint64_t*)0x20013d50 = 0;
  *(uint64_t*)0x20013d58 = 0;
  *(uint16_t*)0x20013d60 = 0x28;
  memcpy((void*)0x20013d62, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
                            "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
                            "\x00\x00\x00\x00\x00",
         29);
  *(uint8_t*)0x20013d7f = 0;
  *(uint32_t*)0x20013d80 = 0xfffffffe;
  *(uint8_t*)0x20013d88 = 0;
  *(uint8_t*)0x20013d89 = 0;
  *(uint8_t*)0x20013d8a = 0;
  *(uint8_t*)0x20013d8b = 0;
  *(uint8_t*)0x20013d8c = 0;
  *(uint8_t*)0x20013d8d = 0;
  *(uint8_t*)0x20013d8e = 0;
  *(uint8_t*)0x20013d8f = 0;
  *(uint8_t*)0x20013d90 = 0;
  *(uint8_t*)0x20013d91 = 0;
  *(uint8_t*)0x20013d92 = 0;
  *(uint8_t*)0x20013d93 = 0;
  *(uint8_t*)0x20013d94 = 0;
  *(uint8_t*)0x20013d95 = 0;
  *(uint8_t*)0x20013d96 = 0;
  *(uint8_t*)0x20013d97 = 0;
  *(uint8_t*)0x20013d98 = 0;
  *(uint8_t*)0x20013d99 = 0;
  *(uint8_t*)0x20013d9a = 0;
  *(uint8_t*)0x20013d9b = 0;
  *(uint8_t*)0x20013d9c = 0;
  *(uint8_t*)0x20013d9d = 0;
  *(uint8_t*)0x20013d9e = 0;
  *(uint8_t*)0x20013d9f = 0;
  *(uint8_t*)0x20013da0 = 0;
  *(uint8_t*)0x20013da1 = 0;
  *(uint8_t*)0x20013da2 = 0;
  *(uint8_t*)0x20013da3 = 0;
  *(uint8_t*)0x20013da4 = 0;
  *(uint8_t*)0x20013da5 = 0;
  *(uint8_t*)0x20013da6 = 0;
  *(uint8_t*)0x20013da7 = 0;
  *(uint8_t*)0x20013da8 = 0;
  *(uint8_t*)0x20013da9 = 0;
  *(uint8_t*)0x20013daa = 0;
  *(uint8_t*)0x20013dab = 0;
  *(uint8_t*)0x20013dac = 0;
  *(uint8_t*)0x20013dad = 0;
  *(uint8_t*)0x20013dae = 0;
  *(uint8_t*)0x20013daf = 0;
  *(uint8_t*)0x20013db0 = 0;
  *(uint8_t*)0x20013db1 = 0;
  *(uint8_t*)0x20013db2 = 0;
  *(uint8_t*)0x20013db3 = 0;
  *(uint8_t*)0x20013db4 = 0;
  *(uint8_t*)0x20013db5 = 0;
  *(uint8_t*)0x20013db6 = 0;
  *(uint8_t*)0x20013db7 = 0;
  *(uint8_t*)0x20013db8 = 0;
  *(uint8_t*)0x20013db9 = 0;
  *(uint8_t*)0x20013dba = 0;
  *(uint8_t*)0x20013dbb = 0;
  *(uint8_t*)0x20013dbc = 0;
  *(uint8_t*)0x20013dbd = 0;
  *(uint8_t*)0x20013dbe = 0;
  *(uint8_t*)0x20013dbf = 0;
  *(uint8_t*)0x20013dc0 = 0;
  *(uint8_t*)0x20013dc1 = 0;
  *(uint8_t*)0x20013dc2 = 0;
  *(uint8_t*)0x20013dc3 = 0;
  *(uint8_t*)0x20013dc4 = 0;
  *(uint8_t*)0x20013dc5 = 0;
  *(uint8_t*)0x20013dc6 = 0;
  *(uint8_t*)0x20013dc7 = 0;
  *(uint8_t*)0x20013dc8 = 0;
  *(uint8_t*)0x20013dc9 = 0;
  *(uint8_t*)0x20013dca = 0;
  *(uint8_t*)0x20013dcb = 0;
  *(uint8_t*)0x20013dcc = 0;
  *(uint8_t*)0x20013dcd = 0;
  *(uint8_t*)0x20013dce = 0;
  *(uint8_t*)0x20013dcf = 0;
  *(uint8_t*)0x20013dd0 = 0;
  *(uint8_t*)0x20013dd1 = 0;
  *(uint8_t*)0x20013dd2 = 0;
  *(uint8_t*)0x20013dd3 = 0;
  *(uint8_t*)0x20013dd4 = 0;
  *(uint8_t*)0x20013dd5 = 0;
  *(uint8_t*)0x20013dd6 = 0;
  *(uint8_t*)0x20013dd7 = 0;
  *(uint8_t*)0x20013dd8 = 0;
  *(uint8_t*)0x20013dd9 = 0;
  *(uint8_t*)0x20013dda = 0;
  *(uint8_t*)0x20013ddb = 0;
  *(uint32_t*)0x20013ddc = 0;
  *(uint16_t*)0x20013de0 = 0x70;
  *(uint16_t*)0x20013de2 = 0x98;
  *(uint32_t*)0x20013de4 = 0;
  *(uint64_t*)0x20013de8 = 0;
  *(uint64_t*)0x20013df0 = 0;
  *(uint16_t*)0x20013df8 = 0x28;
  memcpy((void*)0x20013dfa, "\x52\x45\x4a\x45\x43\x54\x00\x00\x00\x00\x00\x00"
                            "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
                            "\x00\x00\x00\x00\x00",
         29);
  *(uint8_t*)0x20013e17 = 0;
  *(uint32_t*)0x20013e18 = 0;
  *(uint32_t*)0x20013e20 = htobe32(0xe0000001);
  *(uint8_t*)0x20013e24 = 0xac;
  *(uint8_t*)0x20013e25 = 0x14;
  *(uint8_t*)0x20013e26 = 0;
  *(uint8_t*)0x20013e27 = 0xaa;
  *(uint32_t*)0x20013e28 = htobe32(0);
  *(uint32_t*)0x20013e2c = htobe32(-1);
  memcpy((void*)0x20013e30,
         "\x73\x69\x74\x30\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00",
         16);
  memcpy((void*)0x20013e40,
         "\x65\x71\x6c\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00",
         16);
  *(uint8_t*)0x20013e50 = 0;
  *(uint8_t*)0x20013e51 = 0;
  *(uint8_t*)0x20013e52 = 0;
  *(uint8_t*)0x20013e53 = 0;
  *(uint8_t*)0x20013e54 = 0;
  *(uint8_t*)0x20013e55 = 0;
  *(uint8_t*)0x20013e56 = 0;
  *(uint8_t*)0x20013e57 = 0;
  *(uint8_t*)0x20013e58 = 0;
  *(uint8_t*)0x20013e59 = 0;
  *(uint8_t*)0x20013e5a = 0;
  *(uint8_t*)0x20013e5b = 0;
  *(uint8_t*)0x20013e5c = 0;
  *(uint8_t*)0x20013e5d = 0;
  *(uint8_t*)0x20013e5e = 0;
  *(uint8_t*)0x20013e5f = 0;
  *(uint8_t*)0x20013e60 = 0;
  *(uint8_t*)0x20013e61 = 0;
  *(uint8_t*)0x20013e62 = 0;
  *(uint8_t*)0x20013e63 = 0;
  *(uint8_t*)0x20013e64 = 0;
  *(uint8_t*)0x20013e65 = 0;
  *(uint8_t*)0x20013e66 = 0;
  *(uint8_t*)0x20013e67 = 0;
  *(uint8_t*)0x20013e68 = 0;
  *(uint8_t*)0x20013e69 = 0;
  *(uint8_t*)0x20013e6a = 0;
  *(uint8_t*)0x20013e6b = 0;
  *(uint8_t*)0x20013e6c = 0;
  *(uint8_t*)0x20013e6d = 0;
  *(uint8_t*)0x20013e6e = 0;
  *(uint8_t*)0x20013e6f = 0;
  *(uint16_t*)0x20013e70 = 0;
  *(uint8_t*)0x20013e72 = 0;
  *(uint8_t*)0x20013e73 = 0;
  *(uint32_t*)0x20013e74 = 0;
  *(uint16_t*)0x20013e78 = 0x70;
  *(uint16_t*)0x20013e7a = 0xd0;
  *(uint32_t*)0x20013e7c = 0;
  *(uint64_t*)0x20013e80 = 0;
  *(uint64_t*)0x20013e88 = 0;
  *(uint16_t*)0x20013e90 = 0x60;
  memcpy((void*)0x20013e92, "\x43\x4c\x55\x53\x54\x45\x52\x49\x50\x00\x00\x00"
                            "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
                            "\x00\x00\x00\x00\x00",
         29);
  *(uint8_t*)0x20013eaf = 0;
  *(uint32_t*)0x20013eb0 = 1;
  *(uint8_t*)0x20013eb4 = 1;
  *(uint8_t*)0x20013eb5 = 0x80;
  *(uint8_t*)0x20013eb6 = 0xc2;
  *(uint8_t*)0x20013eb7 = 0;
  *(uint8_t*)0x20013eb8 = 0;
  *(uint8_t*)0x20013eb9 = 0;
  *(uint16_t*)0x20013eba = 0;
  *(uint16_t*)0x20013ebc = 0;
  *(uint16_t*)0x20013ebe = 0;
  *(uint16_t*)0x20013ec0 = 0;
  *(uint16_t*)0x20013ec2 = 0;
  *(uint16_t*)0x20013ec4 = 0;
  *(uint16_t*)0x20013ec6 = 0;
  *(uint16_t*)0x20013ec8 = 0;
  *(uint16_t*)0x20013eca = 0;
  *(uint16_t*)0x20013ecc = 0;
  *(uint16_t*)0x20013ece = 0;
  *(uint16_t*)0x20013ed0 = 0;
  *(uint16_t*)0x20013ed2 = 0;
  *(uint16_t*)0x20013ed4 = 0;
  *(uint16_t*)0x20013ed6 = 0;
  *(uint16_t*)0x20013ed8 = 0;
  *(uint16_t*)0x20013eda = 0;
  *(uint16_t*)0x20013edc = 0;
  *(uint32_t*)0x20013ee0 = 0;
  *(uint32_t*)0x20013ee4 = 0;
  *(uint64_t*)0x20013ee8 = 0;
  *(uint8_t*)0x20013ef0 = 0;
  *(uint8_t*)0x20013ef1 = 0;
  *(uint8_t*)0x20013ef2 = 0;
  *(uint8_t*)0x20013ef3 = 0;
  *(uint8_t*)0x20013ef4 = 0;
  *(uint8_t*)0x20013ef5 = 0;
  *(uint8_t*)0x20013ef6 = 0;
  *(uint8_t*)0x20013ef7 = 0;
  *(uint8_t*)0x20013ef8 = 0;
  *(uint8_t*)0x20013ef9 = 0;
  *(uint8_t*)0x20013efa = 0;
  *(uint8_t*)0x20013efb = 0;
  *(uint8_t*)0x20013efc = 0;
  *(uint8_t*)0x20013efd = 0;
  *(uint8_t*)0x20013efe = 0;
  *(uint8_t*)0x20013eff = 0;
  *(uint8_t*)0x20013f00 = 0;
  *(uint8_t*)0x20013f01 = 0;
  *(uint8_t*)0x20013f02 = 0;
  *(uint8_t*)0x20013f03 = 0;
  *(uint8_t*)0x20013f04 = 0;
  *(uint8_t*)0x20013f05 = 0;
  *(uint8_t*)0x20013f06 = 0;
  *(uint8_t*)0x20013f07 = 0;
  *(uint8_t*)0x20013f08 = 0;
  *(uint8_t*)0x20013f09 = 0;
  *(uint8_t*)0x20013f0a = 0;
  *(uint8_t*)0x20013f0b = 0;
  *(uint8_t*)0x20013f0c = 0;
  *(uint8_t*)0x20013f0d = 0;
  *(uint8_t*)0x20013f0e = 0;
  *(uint8_t*)0x20013f0f = 0;
  *(uint8_t*)0x20013f10 = 0;
  *(uint8_t*)0x20013f11 = 0;
  *(uint8_t*)0x20013f12 = 0;
  *(uint8_t*)0x20013f13 = 0;
  *(uint8_t*)0x20013f14 = 0;
  *(uint8_t*)0x20013f15 = 0;
  *(uint8_t*)0x20013f16 = 0;
  *(uint8_t*)0x20013f17 = 0;
  *(uint8_t*)0x20013f18 = 0;
  *(uint8_t*)0x20013f19 = 0;
  *(uint8_t*)0x20013f1a = 0;
  *(uint8_t*)0x20013f1b = 0;
  *(uint8_t*)0x20013f1c = 0;
  *(uint8_t*)0x20013f1d = 0;
  *(uint8_t*)0x20013f1e = 0;
  *(uint8_t*)0x20013f1f = 0;
  *(uint8_t*)0x20013f20 = 0;
  *(uint8_t*)0x20013f21 = 0;
  *(uint8_t*)0x20013f22 = 0;
  *(uint8_t*)0x20013f23 = 0;
  *(uint8_t*)0x20013f24 = 0;
  *(uint8_t*)0x20013f25 = 0;
  *(uint8_t*)0x20013f26 = 0;
  *(uint8_t*)0x20013f27 = 0;
  *(uint8_t*)0x20013f28 = 0;
  *(uint8_t*)0x20013f29 = 0;
  *(uint8_t*)0x20013f2a = 0;
  *(uint8_t*)0x20013f2b = 0;
  *(uint8_t*)0x20013f2c = 0;
  *(uint8_t*)0x20013f2d = 0;
  *(uint8_t*)0x20013f2e = 0;
  *(uint8_t*)0x20013f2f = 0;
  *(uint8_t*)0x20013f30 = 0;
  *(uint8_t*)0x20013f31 = 0;
  *(uint8_t*)0x20013f32 = 0;
  *(uint8_t*)0x20013f33 = 0;
  *(uint8_t*)0x20013f34 = 0;
  *(uint8_t*)0x20013f35 = 0;
  *(uint8_t*)0x20013f36 = 0;
  *(uint8_t*)0x20013f37 = 0;
  *(uint8_t*)0x20013f38 = 0;
  *(uint8_t*)0x20013f39 = 0;
  *(uint8_t*)0x20013f3a = 0;
  *(uint8_t*)0x20013f3b = 0;
  *(uint8_t*)0x20013f3c = 0;
  *(uint8_t*)0x20013f3d = 0;
  *(uint8_t*)0x20013f3e = 0;
  *(uint8_t*)0x20013f3f = 0;
  *(uint8_t*)0x20013f40 = 0;
  *(uint8_t*)0x20013f41 = 0;
  *(uint8_t*)0x20013f42 = 0;
  *(uint8_t*)0x20013f43 = 0;
  *(uint32_t*)0x20013f44 = 0;
  *(uint16_t*)0x20013f48 = 0xc0;
  *(uint16_t*)0x20013f4a = 0xe8;
  *(uint32_t*)0x20013f4c = 0;
  *(uint64_t*)0x20013f50 = 0;
  *(uint64_t*)0x20013f58 = 0;
  *(uint16_t*)0x20013f60 = 0x50;
  memcpy((void*)0x20013f62, "\x6f\x73\x66\x00\x00\x00\x00\x00\x00\x00\x00\x00"
                            "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
                            "\x00\x00\x00\x00\x00",
         29);
  *(uint8_t*)0x20013f7f = 0;
  memcpy((void*)0x20013f80, "\x73\x79\x7a\x30\x00\x00\x00\x00\x00\x00\x00\x00"
                            "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
                            "\x00\x00\x00\x00\x00\x00\x00\x00",
         32);
  *(uint32_t*)0x20013fa0 = 0;
  *(uint32_t*)0x20013fa4 = 0;
  *(uint32_t*)0x20013fa8 = 0;
  *(uint32_t*)0x20013fac = 0;
  *(uint16_t*)0x20013fb0 = 0x28;
  memcpy((void*)0x20013fb2, "\x52\x45\x4a\x45\x43\x54\x00\x00\x00\x00\x00\x00"
                            "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
                            "\x00\x00\x00\x00\x00",
         29);
  *(uint8_t*)0x20013fcf = 0;
  *(uint32_t*)0x20013fd0 = 0;
  *(uint64_t*)0x20001000 = 0;
  *(uint64_t*)0x20001008 = 0;
  *(uint64_t*)0x20001010 = 0;
  *(uint64_t*)0x20001018 = 0;
  *(uint64_t*)0x20001020 = 0;
  *(uint64_t*)0x20001028 = 0;
  *(uint64_t*)0x20001030 = 0;
  *(uint64_t*)0x20001038 = 0;
  syscall(__NR_setsockopt, r[0], 0, 0x40, 0x20013c90, 0x348);
  *(uint32_t*)0x20010f70 = 0x401;
  *(uint16_t*)0x20010f78 = 2;
  *(uint16_t*)0x20010f7a = htobe16(0x4e23);
  *(uint32_t*)0x20010f7c = htobe32(0x8000);
  *(uint8_t*)0x20010f80 = 0;
  *(uint8_t*)0x20010f81 = 0;
  *(uint8_t*)0x20010f82 = 0;
  *(uint8_t*)0x20010f83 = 0;
  *(uint8_t*)0x20010f84 = 0;
  *(uint8_t*)0x20010f85 = 0;
  *(uint8_t*)0x20010f86 = 0;
  *(uint8_t*)0x20010f87 = 0;
  *(uint64_t*)0x20010f88 = 0;
  *(uint64_t*)0x20010f90 = 0;
  *(uint64_t*)0x20010f98 = 0;
  *(uint64_t*)0x20010fa0 = 0;
  *(uint64_t*)0x20010fa8 = 0;
  *(uint64_t*)0x20010fb0 = 0;
  *(uint64_t*)0x20010fb8 = 0;
  *(uint64_t*)0x20010fc0 = 0;
  *(uint64_t*)0x20010fc8 = 0;
  *(uint64_t*)0x20010fd0 = 0;
  *(uint64_t*)0x20010fd8 = 0;
  *(uint64_t*)0x20010fe0 = 0;
  *(uint64_t*)0x20010fe8 = 0;
  *(uint64_t*)0x20010ff0 = 0;
  *(uint64_t*)0x20010ff8 = 0;
  syscall(__NR_setsockopt, r[0], 0, 0x2d, 0x20010f70, 0x90);
  *(uint32_t*)0x20017ffc = 0xe8;
  syscall(__NR_getsockopt, -1, 0, 0x10, 0x20017f18, 0x20017ffc);
}

int main()
{
  setup_tun(0, true);
  loop();
  return 0;
}