// https://syzkaller.appspot.com/bug?id=1ec500baf19f5376d2162d62557d0394359ce056
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <arpa/inet.h>
#include <dirent.h>
#include <endian.h>
#include <errno.h>
#include <fcntl.h>
#include <net/if.h>
#include <net/if_arp.h>
#include <netinet/in.h>
#include <sched.h>
#include <signal.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/mount.h>
#include <sys/prctl.h>
#include <sys/resource.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/uio.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>

#include <linux/capability.h>
#include <linux/genetlink.h>
#include <linux/if_addr.h>
#include <linux/if_ether.h>
#include <linux/if_link.h>
#include <linux/if_tun.h>
#include <linux/in6.h>
#include <linux/ip.h>
#include <linux/neighbour.h>
#include <linux/net.h>
#include <linux/netlink.h>
#include <linux/rtnetlink.h>
#include <linux/tcp.h>
#include <linux/veth.h>

static unsigned long long procid;

static void sleep_ms(uint64_t ms)
{
  usleep(ms * 1000);
}

static uint64_t current_time_ms(void)
{
  struct timespec ts;
  if (clock_gettime(CLOCK_MONOTONIC, &ts))
    exit(1);
  return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000;
}

static bool write_file(const char* file, const char* what, ...)
{
  char buf[1024];
  va_list args;
  va_start(args, what);
  vsnprintf(buf, sizeof(buf), what, args);
  va_end(args);
  buf[sizeof(buf) - 1] = 0;
  int len = strlen(buf);
  int fd = open(file, O_WRONLY | O_CLOEXEC);
  if (fd == -1)
    return false;
  if (write(fd, buf, len) != len) {
    int err = errno;
    close(fd);
    errno = err;
    return false;
  }
  close(fd);
  return true;
}

struct nlmsg {
  char* pos;
  int nesting;
  struct nlattr* nested[8];
  char buf[1024];
};

static struct nlmsg nlmsg;

static void netlink_init(struct nlmsg* nlmsg, int typ, int flags,
                         const void* data, int size)
{
  memset(nlmsg, 0, sizeof(*nlmsg));
  struct nlmsghdr* hdr = (struct nlmsghdr*)nlmsg->buf;
  hdr->nlmsg_type = typ;
  hdr->nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK | flags;
  memcpy(hdr + 1, data, size);
  nlmsg->pos = (char*)(hdr + 1) + NLMSG_ALIGN(size);
}

static void netlink_attr(struct nlmsg* nlmsg, int typ, const void* data,
                         int size)
{
  struct nlattr* attr = (struct nlattr*)nlmsg->pos;
  attr->nla_len = sizeof(*attr) + size;
  attr->nla_type = typ;
  memcpy(attr + 1, data, size);
  nlmsg->pos += NLMSG_ALIGN(attr->nla_len);
}

static void netlink_nest(struct nlmsg* nlmsg, int typ)
{
  struct nlattr* attr = (struct nlattr*)nlmsg->pos;
  attr->nla_type = typ;
  nlmsg->pos += sizeof(*attr);
  nlmsg->nested[nlmsg->nesting++] = attr;
}

static void netlink_done(struct nlmsg* nlmsg)
{
  struct nlattr* attr = nlmsg->nested[--nlmsg->nesting];
  attr->nla_len = nlmsg->pos - (char*)attr;
}

static int netlink_send_ext(struct nlmsg* nlmsg, int sock, uint16_t reply_type,
                            int* reply_len)
{
  if (nlmsg->pos > nlmsg->buf + sizeof(nlmsg->buf) || nlmsg->nesting)
    exit(1);
  struct nlmsghdr* hdr = (struct nlmsghdr*)nlmsg->buf;
  hdr->nlmsg_len = nlmsg->pos - nlmsg->buf;
  struct sockaddr_nl addr;
  memset(&addr, 0, sizeof(addr));
  addr.nl_family = AF_NETLINK;
  unsigned n = sendto(sock, nlmsg->buf, hdr->nlmsg_len, 0,
                      (struct sockaddr*)&addr, sizeof(addr));
  if (n != hdr->nlmsg_len)
    exit(1);
  n = recv(sock, nlmsg->buf, sizeof(nlmsg->buf), 0);
  if (hdr->nlmsg_type == NLMSG_DONE) {
    *reply_len = 0;
    return 0;
  }
  if (n < sizeof(struct nlmsghdr))
    exit(1);
  if (reply_len && hdr->nlmsg_type == reply_type) {
    *reply_len = n;
    return 0;
  }
  if (n < sizeof(struct nlmsghdr) + sizeof(struct nlmsgerr))
    exit(1);
  if (hdr->nlmsg_type != NLMSG_ERROR)
    exit(1);
  return -((struct nlmsgerr*)(hdr + 1))->error;
}

static int netlink_send(struct nlmsg* nlmsg, int sock)
{
  return netlink_send_ext(nlmsg, sock, 0, NULL);
}

static int netlink_next_msg(struct nlmsg* nlmsg, unsigned int offset,
                            unsigned int total_len)
{
  struct nlmsghdr* hdr = (struct nlmsghdr*)(nlmsg->buf + offset);
  if (offset == total_len || offset + hdr->nlmsg_len > total_len)
    return -1;
  return hdr->nlmsg_len;
}

static void netlink_add_device_impl(struct nlmsg* nlmsg, const char* type,
                                    const char* name)
{
  struct ifinfomsg hdr;
  memset(&hdr, 0, sizeof(hdr));
  netlink_init(nlmsg, RTM_NEWLINK, NLM_F_EXCL | NLM_F_CREATE, &hdr,
               sizeof(hdr));
  if (name)
    netlink_attr(nlmsg, IFLA_IFNAME, name, strlen(name));
  netlink_nest(nlmsg, IFLA_LINKINFO);
  netlink_attr(nlmsg, IFLA_INFO_KIND, type, strlen(type));
}

static void netlink_add_device(struct nlmsg* nlmsg, int sock, const char* type,
                               const char* name)
{
  netlink_add_device_impl(nlmsg, type, name);
  netlink_done(nlmsg);
  int err = netlink_send(nlmsg, sock);
  (void)err;
}

static void netlink_add_veth(struct nlmsg* nlmsg, int sock, const char* name,
                             const char* peer)
{
  netlink_add_device_impl(nlmsg, "veth", name);
  netlink_nest(nlmsg, IFLA_INFO_DATA);
  netlink_nest(nlmsg, VETH_INFO_PEER);
  nlmsg->pos += sizeof(struct ifinfomsg);
  netlink_attr(nlmsg, IFLA_IFNAME, peer, strlen(peer));
  netlink_done(nlmsg);
  netlink_done(nlmsg);
  netlink_done(nlmsg);
  int err = netlink_send(nlmsg, sock);
  (void)err;
}

static void netlink_add_hsr(struct nlmsg* nlmsg, int sock, const char* name,
                            const char* slave1, const char* slave2)
{
  netlink_add_device_impl(nlmsg, "hsr", name);
  netlink_nest(nlmsg, IFLA_INFO_DATA);
  int ifindex1 = if_nametoindex(slave1);
  netlink_attr(nlmsg, IFLA_HSR_SLAVE1, &ifindex1, sizeof(ifindex1));
  int ifindex2 = if_nametoindex(slave2);
  netlink_attr(nlmsg, IFLA_HSR_SLAVE2, &ifindex2, sizeof(ifindex2));
  netlink_done(nlmsg);
  netlink_done(nlmsg);
  int err = netlink_send(nlmsg, sock);
  (void)err;
}

static void netlink_add_linked(struct nlmsg* nlmsg, int sock, const char* type,
                               const char* name, const char* link)
{
  netlink_add_device_impl(nlmsg, type, name);
  netlink_done(nlmsg);
  int ifindex = if_nametoindex(link);
  netlink_attr(nlmsg, IFLA_LINK, &ifindex, sizeof(ifindex));
  int err = netlink_send(nlmsg, sock);
  (void)err;
}

static void netlink_add_vlan(struct nlmsg* nlmsg, int sock, const char* name,
                             const char* link, uint16_t id, uint16_t proto)
{
  netlink_add_device_impl(nlmsg, "vlan", name);
  netlink_nest(nlmsg, IFLA_INFO_DATA);
  netlink_attr(nlmsg, IFLA_VLAN_ID, &id, sizeof(id));
  netlink_attr(nlmsg, IFLA_VLAN_PROTOCOL, &proto, sizeof(proto));
  netlink_done(nlmsg);
  netlink_done(nlmsg);
  int ifindex = if_nametoindex(link);
  netlink_attr(nlmsg, IFLA_LINK, &ifindex, sizeof(ifindex));
  int err = netlink_send(nlmsg, sock);
  (void)err;
}

static void netlink_add_macvlan(struct nlmsg* nlmsg, int sock, const char* name,
                                const char* link)
{
  netlink_add_device_impl(nlmsg, "macvlan", name);
  netlink_nest(nlmsg, IFLA_INFO_DATA);
  uint32_t mode = MACVLAN_MODE_BRIDGE;
  netlink_attr(nlmsg, IFLA_MACVLAN_MODE, &mode, sizeof(mode));
  netlink_done(nlmsg);
  netlink_done(nlmsg);
  int ifindex = if_nametoindex(link);
  netlink_attr(nlmsg, IFLA_LINK, &ifindex, sizeof(ifindex));
  int err = netlink_send(nlmsg, sock);
  (void)err;
}

static void netlink_add_geneve(struct nlmsg* nlmsg, int sock, const char* name,
                               uint32_t vni, struct in_addr* addr4,
                               struct in6_addr* addr6)
{
  netlink_add_device_impl(nlmsg, "geneve", name);
  netlink_nest(nlmsg, IFLA_INFO_DATA);
  netlink_attr(nlmsg, IFLA_GENEVE_ID, &vni, sizeof(vni));
  if (addr4)
    netlink_attr(nlmsg, IFLA_GENEVE_REMOTE, addr4, sizeof(*addr4));
  if (addr6)
    netlink_attr(nlmsg, IFLA_GENEVE_REMOTE6, addr6, sizeof(*addr6));
  netlink_done(nlmsg);
  netlink_done(nlmsg);
  int err = netlink_send(nlmsg, sock);
  (void)err;
}

#define IFLA_IPVLAN_FLAGS 2
#define IPVLAN_MODE_L3S 2
#undef IPVLAN_F_VEPA
#define IPVLAN_F_VEPA 2

static void netlink_add_ipvlan(struct nlmsg* nlmsg, int sock, const char* name,
                               const char* link, uint16_t mode, uint16_t flags)
{
  netlink_add_device_impl(nlmsg, "ipvlan", name);
  netlink_nest(nlmsg, IFLA_INFO_DATA);
  netlink_attr(nlmsg, IFLA_IPVLAN_MODE, &mode, sizeof(mode));
  netlink_attr(nlmsg, IFLA_IPVLAN_FLAGS, &flags, sizeof(flags));
  netlink_done(nlmsg);
  netlink_done(nlmsg);
  int ifindex = if_nametoindex(link);
  netlink_attr(nlmsg, IFLA_LINK, &ifindex, sizeof(ifindex));
  int err = netlink_send(nlmsg, sock);
  (void)err;
}

static void netlink_device_change(struct nlmsg* nlmsg, int sock,
                                  const char* name, bool up, const char* master,
                                  const void* mac, int macsize,
                                  const char* new_name)
{
  struct ifinfomsg hdr;
  memset(&hdr, 0, sizeof(hdr));
  if (up)
    hdr.ifi_flags = hdr.ifi_change = IFF_UP;
  hdr.ifi_index = if_nametoindex(name);
  netlink_init(nlmsg, RTM_NEWLINK, 0, &hdr, sizeof(hdr));
  if (new_name)
    netlink_attr(nlmsg, IFLA_IFNAME, new_name, strlen(new_name));
  if (master) {
    int ifindex = if_nametoindex(master);
    netlink_attr(nlmsg, IFLA_MASTER, &ifindex, sizeof(ifindex));
  }
  if (macsize)
    netlink_attr(nlmsg, IFLA_ADDRESS, mac, macsize);
  int err = netlink_send(nlmsg, sock);
  (void)err;
}

static int netlink_add_addr(struct nlmsg* nlmsg, int sock, const char* dev,
                            const void* addr, int addrsize)
{
  struct ifaddrmsg hdr;
  memset(&hdr, 0, sizeof(hdr));
  hdr.ifa_family = addrsize == 4 ? AF_INET : AF_INET6;
  hdr.ifa_prefixlen = addrsize == 4 ? 24 : 120;
  hdr.ifa_scope = RT_SCOPE_UNIVERSE;
  hdr.ifa_index = if_nametoindex(dev);
  netlink_init(nlmsg, RTM_NEWADDR, NLM_F_CREATE | NLM_F_REPLACE, &hdr,
               sizeof(hdr));
  netlink_attr(nlmsg, IFA_LOCAL, addr, addrsize);
  netlink_attr(nlmsg, IFA_ADDRESS, addr, addrsize);
  return netlink_send(nlmsg, sock);
}

static void netlink_add_addr4(struct nlmsg* nlmsg, int sock, const char* dev,
                              const char* addr)
{
  struct in_addr in_addr;
  inet_pton(AF_INET, addr, &in_addr);
  int err = netlink_add_addr(nlmsg, sock, dev, &in_addr, sizeof(in_addr));
  (void)err;
}

static void netlink_add_addr6(struct nlmsg* nlmsg, int sock, const char* dev,
                              const char* addr)
{
  struct in6_addr in6_addr;
  inet_pton(AF_INET6, addr, &in6_addr);
  int err = netlink_add_addr(nlmsg, sock, dev, &in6_addr, sizeof(in6_addr));
  (void)err;
}

#define DEVLINK_FAMILY_NAME "devlink"

#define DEVLINK_CMD_PORT_GET 5
#define DEVLINK_ATTR_BUS_NAME 1
#define DEVLINK_ATTR_DEV_NAME 2
#define DEVLINK_ATTR_NETDEV_NAME 7

static int netlink_devlink_id_get(struct nlmsg* nlmsg, int sock)
{
  struct genlmsghdr genlhdr;
  struct nlattr* attr;
  int err, n;
  uint16_t id = 0;
  memset(&genlhdr, 0, sizeof(genlhdr));
  genlhdr.cmd = CTRL_CMD_GETFAMILY;
  netlink_init(nlmsg, GENL_ID_CTRL, 0, &genlhdr, sizeof(genlhdr));
  netlink_attr(nlmsg, CTRL_ATTR_FAMILY_NAME, DEVLINK_FAMILY_NAME,
               strlen(DEVLINK_FAMILY_NAME) + 1);
  err = netlink_send_ext(nlmsg, sock, GENL_ID_CTRL, &n);
  if (err) {
    return -1;
  }
  attr = (struct nlattr*)(nlmsg->buf + NLMSG_HDRLEN +
                          NLMSG_ALIGN(sizeof(genlhdr)));
  for (; (char*)attr < nlmsg->buf + n;
       attr = (struct nlattr*)((char*)attr + NLMSG_ALIGN(attr->nla_len))) {
    if (attr->nla_type == CTRL_ATTR_FAMILY_ID) {
      id = *(uint16_t*)(attr + 1);
      break;
    }
  }
  if (!id) {
    return -1;
  }
  recv(sock, nlmsg->buf, sizeof(nlmsg->buf), 0); /* recv ack */
  return id;
}

static struct nlmsg nlmsg2;

static void initialize_devlink_ports(const char* bus_name, const char* dev_name,
                                     const char* netdev_prefix)
{
  struct genlmsghdr genlhdr;
  int len, total_len, id, err, offset;
  uint16_t netdev_index;
  int sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC);
  if (sock == -1)
    exit(1);
  int rtsock = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
  if (rtsock == -1)
    exit(1);
  id = netlink_devlink_id_get(&nlmsg, sock);
  if (id == -1)
    goto error;
  memset(&genlhdr, 0, sizeof(genlhdr));
  genlhdr.cmd = DEVLINK_CMD_PORT_GET;
  netlink_init(&nlmsg, id, NLM_F_DUMP, &genlhdr, sizeof(genlhdr));
  netlink_attr(&nlmsg, DEVLINK_ATTR_BUS_NAME, bus_name, strlen(bus_name) + 1);
  netlink_attr(&nlmsg, DEVLINK_ATTR_DEV_NAME, dev_name, strlen(dev_name) + 1);
  err = netlink_send_ext(&nlmsg, sock, id, &total_len);
  if (err) {
    goto error;
  }
  offset = 0;
  netdev_index = 0;
  while ((len = netlink_next_msg(&nlmsg, offset, total_len)) != -1) {
    struct nlattr* attr = (struct nlattr*)(nlmsg.buf + offset + NLMSG_HDRLEN +
                                           NLMSG_ALIGN(sizeof(genlhdr)));
    for (; (char*)attr < nlmsg.buf + offset + len;
         attr = (struct nlattr*)((char*)attr + NLMSG_ALIGN(attr->nla_len))) {
      if (attr->nla_type == DEVLINK_ATTR_NETDEV_NAME) {
        char* port_name;
        char netdev_name[IFNAMSIZ];
        port_name = (char*)(attr + 1);
        snprintf(netdev_name, sizeof(netdev_name), "%s%d", netdev_prefix,
                 netdev_index);
        netlink_device_change(&nlmsg2, rtsock, port_name, true, 0, 0, 0,
                              netdev_name);
        break;
      }
    }
    offset += len;
    netdev_index++;
  }
error:
  close(rtsock);
  close(sock);
}

#define DEV_IPV4 "172.20.20.%d"
#define DEV_IPV6 "fe80::%02x"
#define DEV_MAC 0x00aaaaaaaaaa

static void netdevsim_add(unsigned int addr, unsigned int port_count)
{
  char buf[16];
  sprintf(buf, "%u %u", addr, port_count);
  if (write_file("/sys/bus/netdevsim/new_device", buf)) {
    snprintf(buf, sizeof(buf), "netdevsim%d", addr);
    initialize_devlink_ports("netdevsim", buf, "netdevsim");
  }
}

#define WG_GENL_NAME "wireguard"
enum wg_cmd {
  WG_CMD_GET_DEVICE,
  WG_CMD_SET_DEVICE,
};
enum wgdevice_attribute {
  WGDEVICE_A_UNSPEC,
  WGDEVICE_A_IFINDEX,
  WGDEVICE_A_IFNAME,
  WGDEVICE_A_PRIVATE_KEY,
  WGDEVICE_A_PUBLIC_KEY,
  WGDEVICE_A_FLAGS,
  WGDEVICE_A_LISTEN_PORT,
  WGDEVICE_A_FWMARK,
  WGDEVICE_A_PEERS,
};
enum wgpeer_attribute {
  WGPEER_A_UNSPEC,
  WGPEER_A_PUBLIC_KEY,
  WGPEER_A_PRESHARED_KEY,
  WGPEER_A_FLAGS,
  WGPEER_A_ENDPOINT,
  WGPEER_A_PERSISTENT_KEEPALIVE_INTERVAL,
  WGPEER_A_LAST_HANDSHAKE_TIME,
  WGPEER_A_RX_BYTES,
  WGPEER_A_TX_BYTES,
  WGPEER_A_ALLOWEDIPS,
  WGPEER_A_PROTOCOL_VERSION,
};
enum wgallowedip_attribute {
  WGALLOWEDIP_A_UNSPEC,
  WGALLOWEDIP_A_FAMILY,
  WGALLOWEDIP_A_IPADDR,
  WGALLOWEDIP_A_CIDR_MASK,
};

static int netlink_wireguard_id_get(struct nlmsg* nlmsg, int sock)
{
  struct genlmsghdr genlhdr;
  struct nlattr* attr;
  int err, n;
  uint16_t id = 0;
  memset(&genlhdr, 0, sizeof(genlhdr));
  genlhdr.cmd = CTRL_CMD_GETFAMILY;
  netlink_init(nlmsg, GENL_ID_CTRL, 0, &genlhdr, sizeof(genlhdr));
  netlink_attr(nlmsg, CTRL_ATTR_FAMILY_NAME, WG_GENL_NAME,
               strlen(WG_GENL_NAME) + 1);
  err = netlink_send_ext(nlmsg, sock, GENL_ID_CTRL, &n);
  if (err) {
    return -1;
  }
  attr = (struct nlattr*)(nlmsg->buf + NLMSG_HDRLEN +
                          NLMSG_ALIGN(sizeof(genlhdr)));
  for (; (char*)attr < nlmsg->buf + n;
       attr = (struct nlattr*)((char*)attr + NLMSG_ALIGN(attr->nla_len))) {
    if (attr->nla_type == CTRL_ATTR_FAMILY_ID) {
      id = *(uint16_t*)(attr + 1);
      break;
    }
  }
  if (!id) {
    return -1;
  }
  recv(sock, nlmsg->buf, sizeof(nlmsg->buf), 0); /* recv ack */
  return id;
}

static void netlink_wireguard_setup(void)
{
  const char ifname_a[] = "wg0";
  const char ifname_b[] = "wg1";
  const char ifname_c[] = "wg2";
  const char private_a[] = "\xa0\x5c\xa8\x4f\x6c\x9c\x8e\x38\x53\xe2\xfd\x7a"
                           "\x70\xae\x0f\xb2\x0f\xa1\x52\x60\x0c\xb0\x08\x45"
                           "\x17\x4f\x08\x07\x6f\x8d\x78\x43";
  const char private_b[] = "\xb0\x80\x73\xe8\xd4\x4e\x91\xe3\xda\x92\x2c\x22"
                           "\x43\x82\x44\xbb\x88\x5c\x69\xe2\x69\xc8\xe9\xd8"
                           "\x35\xb1\x14\x29\x3a\x4d\xdc\x6e";
  const char private_c[] = "\xa0\xcb\x87\x9a\x47\xf5\xbc\x64\x4c\x0e\x69\x3f"
                           "\xa6\xd0\x31\xc7\x4a\x15\x53\xb6\xe9\x01\xb9\xff"
                           "\x2f\x51\x8c\x78\x04\x2f\xb5\x42";
  const char public_a[] = "\x97\x5c\x9d\x81\xc9\x83\xc8\x20\x9e\xe7\x81\x25\x4b"
                          "\x89\x9f\x8e\xd9\x25\xae\x9f\x09\x23\xc2\x3c\x62\xf5"
                          "\x3c\x57\xcd\xbf\x69\x1c";
  const char public_b[] = "\xd1\x73\x28\x99\xf6\x11\xcd\x89\x94\x03\x4d\x7f\x41"
                          "\x3d\xc9\x57\x63\x0e\x54\x93\xc2\x85\xac\xa4\x00\x65"
                          "\xcb\x63\x11\xbe\x69\x6b";
  const char public_c[] = "\xf4\x4d\xa3\x67\xa8\x8e\xe6\x56\x4f\x02\x02\x11\x45"
                          "\x67\x27\x08\x2f\x5c\xeb\xee\x8b\x1b\xf5\xeb\x73\x37"
                          "\x34\x1b\x45\x9b\x39\x22";
  const uint16_t listen_a = 20001;
  const uint16_t listen_b = 20002;
  const uint16_t listen_c = 20003;
  const uint16_t af_inet = AF_INET;
  const uint16_t af_inet6 = AF_INET6;
  /* Unused, but useful in case we change this:
  const struct sockaddr_in endpoint_a_v4 = {
      .sin_family = AF_INET,
      .sin_port = htons(listen_a),
      .sin_addr = {htonl(INADDR_LOOPBACK)}};*/
  const struct sockaddr_in endpoint_b_v4 = {
      .sin_family = AF_INET,
      .sin_port = htons(listen_b),
      .sin_addr = {htonl(INADDR_LOOPBACK)}};
  const struct sockaddr_in endpoint_c_v4 = {
      .sin_family = AF_INET,
      .sin_port = htons(listen_c),
      .sin_addr = {htonl(INADDR_LOOPBACK)}};
  struct sockaddr_in6 endpoint_a_v6 = {.sin6_family = AF_INET6,
                                       .sin6_port = htons(listen_a)};
  endpoint_a_v6.sin6_addr = in6addr_loopback;
  /* Unused, but useful in case we change this:
  const struct sockaddr_in6 endpoint_b_v6 = {
      .sin6_family = AF_INET6,
      .sin6_port = htons(listen_b)};
  endpoint_b_v6.sin6_addr = in6addr_loopback; */
  struct sockaddr_in6 endpoint_c_v6 = {.sin6_family = AF_INET6,
                                       .sin6_port = htons(listen_c)};
  endpoint_c_v6.sin6_addr = in6addr_loopback;
  const struct in_addr first_half_v4 = {0};
  const struct in_addr second_half_v4 = {htonl(128 << 24)};
  const struct in6_addr first_half_v6 = {{{0}}};
  const struct in6_addr second_half_v6 = {{{0x80}}};
  const uint8_t half_cidr = 1;
  const uint16_t persistent_keepalives[] = {1, 3, 7, 9, 14, 19};
  struct genlmsghdr genlhdr = {.cmd = WG_CMD_SET_DEVICE, .version = 1};
  int sock;
  int id, err;
  sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC);
  if (sock == -1) {
    return;
  }
  id = netlink_wireguard_id_get(&nlmsg, sock);
  if (id == -1)
    goto error;
  netlink_init(&nlmsg, id, 0, &genlhdr, sizeof(genlhdr));
  netlink_attr(&nlmsg, WGDEVICE_A_IFNAME, ifname_a, strlen(ifname_a) + 1);
  netlink_attr(&nlmsg, WGDEVICE_A_PRIVATE_KEY, private_a, 32);
  netlink_attr(&nlmsg, WGDEVICE_A_LISTEN_PORT, &listen_a, 2);
  netlink_nest(&nlmsg, NLA_F_NESTED | WGDEVICE_A_PEERS);
  netlink_nest(&nlmsg, NLA_F_NESTED | 0);
  netlink_attr(&nlmsg, WGPEER_A_PUBLIC_KEY, public_b, 32);
  netlink_attr(&nlmsg, WGPEER_A_ENDPOINT, &endpoint_b_v4,
               sizeof(endpoint_b_v4));
  netlink_attr(&nlmsg, WGPEER_A_PERSISTENT_KEEPALIVE_INTERVAL,
               &persistent_keepalives[0], 2);
  netlink_nest(&nlmsg, NLA_F_NESTED | WGPEER_A_ALLOWEDIPS);
  netlink_nest(&nlmsg, NLA_F_NESTED | 0);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet, 2);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &first_half_v4,
               sizeof(first_half_v4));
  netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
  netlink_done(&nlmsg);
  netlink_nest(&nlmsg, NLA_F_NESTED | 0);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet6, 2);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &first_half_v6,
               sizeof(first_half_v6));
  netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
  netlink_done(&nlmsg);
  netlink_done(&nlmsg);
  netlink_done(&nlmsg);
  netlink_nest(&nlmsg, NLA_F_NESTED | 0);
  netlink_attr(&nlmsg, WGPEER_A_PUBLIC_KEY, public_c, 32);
  netlink_attr(&nlmsg, WGPEER_A_ENDPOINT, &endpoint_c_v6,
               sizeof(endpoint_c_v6));
  netlink_attr(&nlmsg, WGPEER_A_PERSISTENT_KEEPALIVE_INTERVAL,
               &persistent_keepalives[1], 2);
  netlink_nest(&nlmsg, NLA_F_NESTED | WGPEER_A_ALLOWEDIPS);
  netlink_nest(&nlmsg, NLA_F_NESTED | 0);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet, 2);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &second_half_v4,
               sizeof(second_half_v4));
  netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
  netlink_done(&nlmsg);
  netlink_nest(&nlmsg, NLA_F_NESTED | 0);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet6, 2);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &second_half_v6,
               sizeof(second_half_v6));
  netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
  netlink_done(&nlmsg);
  netlink_done(&nlmsg);
  netlink_done(&nlmsg);
  netlink_done(&nlmsg);
  err = netlink_send(&nlmsg, sock);
  if (err) {
  }
  netlink_init(&nlmsg, id, 0, &genlhdr, sizeof(genlhdr));
  netlink_attr(&nlmsg, WGDEVICE_A_IFNAME, ifname_b, strlen(ifname_b) + 1);
  netlink_attr(&nlmsg, WGDEVICE_A_PRIVATE_KEY, private_b, 32);
  netlink_attr(&nlmsg, WGDEVICE_A_LISTEN_PORT, &listen_b, 2);
  netlink_nest(&nlmsg, NLA_F_NESTED | WGDEVICE_A_PEERS);
  netlink_nest(&nlmsg, NLA_F_NESTED | 0);
  netlink_attr(&nlmsg, WGPEER_A_PUBLIC_KEY, public_a, 32);
  netlink_attr(&nlmsg, WGPEER_A_ENDPOINT, &endpoint_a_v6,
               sizeof(endpoint_a_v6));
  netlink_attr(&nlmsg, WGPEER_A_PERSISTENT_KEEPALIVE_INTERVAL,
               &persistent_keepalives[2], 2);
  netlink_nest(&nlmsg, NLA_F_NESTED | WGPEER_A_ALLOWEDIPS);
  netlink_nest(&nlmsg, NLA_F_NESTED | 0);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet, 2);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &first_half_v4,
               sizeof(first_half_v4));
  netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
  netlink_done(&nlmsg);
  netlink_nest(&nlmsg, NLA_F_NESTED | 0);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet6, 2);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &first_half_v6,
               sizeof(first_half_v6));
  netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
  netlink_done(&nlmsg);
  netlink_done(&nlmsg);
  netlink_done(&nlmsg);
  netlink_nest(&nlmsg, NLA_F_NESTED | 0);
  netlink_attr(&nlmsg, WGPEER_A_PUBLIC_KEY, public_c, 32);
  netlink_attr(&nlmsg, WGPEER_A_ENDPOINT, &endpoint_c_v4,
               sizeof(endpoint_c_v4));
  netlink_attr(&nlmsg, WGPEER_A_PERSISTENT_KEEPALIVE_INTERVAL,
               &persistent_keepalives[3], 2);
  netlink_nest(&nlmsg, NLA_F_NESTED | WGPEER_A_ALLOWEDIPS);
  netlink_nest(&nlmsg, NLA_F_NESTED | 0);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet, 2);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &second_half_v4,
               sizeof(second_half_v4));
  netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
  netlink_done(&nlmsg);
  netlink_nest(&nlmsg, NLA_F_NESTED | 0);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet6, 2);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &second_half_v6,
               sizeof(second_half_v6));
  netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
  netlink_done(&nlmsg);
  netlink_done(&nlmsg);
  netlink_done(&nlmsg);
  netlink_done(&nlmsg);
  err = netlink_send(&nlmsg, sock);
  if (err) {
  }
  netlink_init(&nlmsg, id, 0, &genlhdr, sizeof(genlhdr));
  netlink_attr(&nlmsg, WGDEVICE_A_IFNAME, ifname_c, strlen(ifname_c) + 1);
  netlink_attr(&nlmsg, WGDEVICE_A_PRIVATE_KEY, private_c, 32);
  netlink_attr(&nlmsg, WGDEVICE_A_LISTEN_PORT, &listen_c, 2);
  netlink_nest(&nlmsg, NLA_F_NESTED | WGDEVICE_A_PEERS);
  netlink_nest(&nlmsg, NLA_F_NESTED | 0);
  netlink_attr(&nlmsg, WGPEER_A_PUBLIC_KEY, public_a, 32);
  netlink_attr(&nlmsg, WGPEER_A_ENDPOINT, &endpoint_a_v6,
               sizeof(endpoint_a_v6));
  netlink_attr(&nlmsg, WGPEER_A_PERSISTENT_KEEPALIVE_INTERVAL,
               &persistent_keepalives[4], 2);
  netlink_nest(&nlmsg, NLA_F_NESTED | WGPEER_A_ALLOWEDIPS);
  netlink_nest(&nlmsg, NLA_F_NESTED | 0);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet, 2);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &first_half_v4,
               sizeof(first_half_v4));
  netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
  netlink_done(&nlmsg);
  netlink_nest(&nlmsg, NLA_F_NESTED | 0);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet6, 2);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &first_half_v6,
               sizeof(first_half_v6));
  netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
  netlink_done(&nlmsg);
  netlink_done(&nlmsg);
  netlink_done(&nlmsg);
  netlink_nest(&nlmsg, NLA_F_NESTED | 0);
  netlink_attr(&nlmsg, WGPEER_A_PUBLIC_KEY, public_b, 32);
  netlink_attr(&nlmsg, WGPEER_A_ENDPOINT, &endpoint_b_v4,
               sizeof(endpoint_b_v4));
  netlink_attr(&nlmsg, WGPEER_A_PERSISTENT_KEEPALIVE_INTERVAL,
               &persistent_keepalives[5], 2);
  netlink_nest(&nlmsg, NLA_F_NESTED | WGPEER_A_ALLOWEDIPS);
  netlink_nest(&nlmsg, NLA_F_NESTED | 0);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet, 2);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &second_half_v4,
               sizeof(second_half_v4));
  netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
  netlink_done(&nlmsg);
  netlink_nest(&nlmsg, NLA_F_NESTED | 0);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet6, 2);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &second_half_v6,
               sizeof(second_half_v6));
  netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
  netlink_done(&nlmsg);
  netlink_done(&nlmsg);
  netlink_done(&nlmsg);
  netlink_done(&nlmsg);
  err = netlink_send(&nlmsg, sock);
  if (err) {
  }

error:
  close(sock);
}
static void initialize_netdevices(void)
{
  char netdevsim[16];
  sprintf(netdevsim, "netdevsim%d", (int)procid);
  struct {
    const char* type;
    const char* dev;
  } devtypes[] = {
      {"ip6gretap", "ip6gretap0"}, {"bridge", "bridge0"},
      {"vcan", "vcan0"},           {"bond", "bond0"},
      {"team", "team0"},           {"dummy", "dummy0"},
      {"nlmon", "nlmon0"},         {"caif", "caif0"},
      {"batadv", "batadv0"},       {"vxcan", "vxcan1"},
      {"netdevsim", netdevsim},    {"veth", 0},
      {"xfrm", "xfrm0"},           {"wireguard", "wg0"},
      {"wireguard", "wg1"},        {"wireguard", "wg2"},
  };
  const char* devmasters[] = {"bridge", "bond", "team", "batadv"};
  struct {
    const char* name;
    int macsize;
    bool noipv6;
  } devices[] = {
      {"lo", ETH_ALEN},
      {"sit0", 0},
      {"bridge0", ETH_ALEN},
      {"vcan0", 0, true},
      {"tunl0", 0},
      {"gre0", 0},
      {"gretap0", ETH_ALEN},
      {"ip_vti0", 0},
      {"ip6_vti0", 0},
      {"ip6tnl0", 0},
      {"ip6gre0", 0},
      {"ip6gretap0", ETH_ALEN},
      {"erspan0", ETH_ALEN},
      {"bond0", ETH_ALEN},
      {"veth0", ETH_ALEN},
      {"veth1", ETH_ALEN},
      {"team0", ETH_ALEN},
      {"veth0_to_bridge", ETH_ALEN},
      {"veth1_to_bridge", ETH_ALEN},
      {"veth0_to_bond", ETH_ALEN},
      {"veth1_to_bond", ETH_ALEN},
      {"veth0_to_team", ETH_ALEN},
      {"veth1_to_team", ETH_ALEN},
      {"veth0_to_hsr", ETH_ALEN},
      {"veth1_to_hsr", ETH_ALEN},
      {"hsr0", 0},
      {"dummy0", ETH_ALEN},
      {"nlmon0", 0},
      {"vxcan0", 0, true},
      {"vxcan1", 0, true},
      {"caif0", ETH_ALEN},
      {"batadv0", ETH_ALEN},
      {netdevsim, ETH_ALEN},
      {"xfrm0", ETH_ALEN},
      {"veth0_virt_wifi", ETH_ALEN},
      {"veth1_virt_wifi", ETH_ALEN},
      {"virt_wifi0", ETH_ALEN},
      {"veth0_vlan", ETH_ALEN},
      {"veth1_vlan", ETH_ALEN},
      {"vlan0", ETH_ALEN},
      {"vlan1", ETH_ALEN},
      {"macvlan0", ETH_ALEN},
      {"macvlan1", ETH_ALEN},
      {"ipvlan0", ETH_ALEN},
      {"ipvlan1", ETH_ALEN},
      {"veth0_macvtap", ETH_ALEN},
      {"veth1_macvtap", ETH_ALEN},
      {"macvtap0", ETH_ALEN},
      {"macsec0", ETH_ALEN},
      {"veth0_to_batadv", ETH_ALEN},
      {"veth1_to_batadv", ETH_ALEN},
      {"batadv_slave_0", ETH_ALEN},
      {"batadv_slave_1", ETH_ALEN},
      {"geneve0", ETH_ALEN},
      {"geneve1", ETH_ALEN},
      {"wg0", 0},
      {"wg1", 0},
      {"wg2", 0},
  };
  int sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
  if (sock == -1)
    exit(1);
  unsigned i;
  for (i = 0; i < sizeof(devtypes) / sizeof(devtypes[0]); i++)
    netlink_add_device(&nlmsg, sock, devtypes[i].type, devtypes[i].dev);
  for (i = 0; i < sizeof(devmasters) / (sizeof(devmasters[0])); i++) {
    char master[32], slave0[32], veth0[32], slave1[32], veth1[32];
    sprintf(slave0, "%s_slave_0", devmasters[i]);
    sprintf(veth0, "veth0_to_%s", devmasters[i]);
    netlink_add_veth(&nlmsg, sock, slave0, veth0);
    sprintf(slave1, "%s_slave_1", devmasters[i]);
    sprintf(veth1, "veth1_to_%s", devmasters[i]);
    netlink_add_veth(&nlmsg, sock, slave1, veth1);
    sprintf(master, "%s0", devmasters[i]);
    netlink_device_change(&nlmsg, sock, slave0, false, master, 0, 0, NULL);
    netlink_device_change(&nlmsg, sock, slave1, false, master, 0, 0, NULL);
  }
  netlink_device_change(&nlmsg, sock, "bridge_slave_0", true, 0, 0, 0, NULL);
  netlink_device_change(&nlmsg, sock, "bridge_slave_1", true, 0, 0, 0, NULL);
  netlink_add_veth(&nlmsg, sock, "hsr_slave_0", "veth0_to_hsr");
  netlink_add_veth(&nlmsg, sock, "hsr_slave_1", "veth1_to_hsr");
  netlink_add_hsr(&nlmsg, sock, "hsr0", "hsr_slave_0", "hsr_slave_1");
  netlink_device_change(&nlmsg, sock, "hsr_slave_0", true, 0, 0, 0, NULL);
  netlink_device_change(&nlmsg, sock, "hsr_slave_1", true, 0, 0, 0, NULL);
  netlink_add_veth(&nlmsg, sock, "veth0_virt_wifi", "veth1_virt_wifi");
  netlink_add_linked(&nlmsg, sock, "virt_wifi", "virt_wifi0",
                     "veth1_virt_wifi");
  netlink_add_veth(&nlmsg, sock, "veth0_vlan", "veth1_vlan");
  netlink_add_vlan(&nlmsg, sock, "vlan0", "veth0_vlan", 0, htons(ETH_P_8021Q));
  netlink_add_vlan(&nlmsg, sock, "vlan1", "veth0_vlan", 1, htons(ETH_P_8021AD));
  netlink_add_macvlan(&nlmsg, sock, "macvlan0", "veth1_vlan");
  netlink_add_macvlan(&nlmsg, sock, "macvlan1", "veth1_vlan");
  netlink_add_ipvlan(&nlmsg, sock, "ipvlan0", "veth0_vlan", IPVLAN_MODE_L2, 0);
  netlink_add_ipvlan(&nlmsg, sock, "ipvlan1", "veth0_vlan", IPVLAN_MODE_L3S,
                     IPVLAN_F_VEPA);
  netlink_add_veth(&nlmsg, sock, "veth0_macvtap", "veth1_macvtap");
  netlink_add_linked(&nlmsg, sock, "macvtap", "macvtap0", "veth0_macvtap");
  netlink_add_linked(&nlmsg, sock, "macsec", "macsec0", "veth1_macvtap");
  char addr[32];
  sprintf(addr, DEV_IPV4, 14 + 10);
  struct in_addr geneve_addr4;
  if (inet_pton(AF_INET, addr, &geneve_addr4) <= 0)
    exit(1);
  struct in6_addr geneve_addr6;
  if (inet_pton(AF_INET6, "fc00::01", &geneve_addr6) <= 0)
    exit(1);
  netlink_add_geneve(&nlmsg, sock, "geneve0", 0, &geneve_addr4, 0);
  netlink_add_geneve(&nlmsg, sock, "geneve1", 1, 0, &geneve_addr6);
  netdevsim_add((int)procid, 4);
  netlink_wireguard_setup();
  for (i = 0; i < sizeof(devices) / (sizeof(devices[0])); i++) {
    char addr[32];
    sprintf(addr, DEV_IPV4, i + 10);
    netlink_add_addr4(&nlmsg, sock, devices[i].name, addr);
    if (!devices[i].noipv6) {
      sprintf(addr, DEV_IPV6, i + 10);
      netlink_add_addr6(&nlmsg, sock, devices[i].name, addr);
    }
    uint64_t macaddr = DEV_MAC + ((i + 10ull) << 40);
    netlink_device_change(&nlmsg, sock, devices[i].name, true, 0, &macaddr,
                          devices[i].macsize, NULL);
  }
  close(sock);
}
static void initialize_netdevices_init(void)
{
  int sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
  if (sock == -1)
    exit(1);
  struct {
    const char* type;
    int macsize;
    bool noipv6;
    bool noup;
  } devtypes[] = {
      {"nr", 7, true}, {"rose", 5, true, true},
  };
  unsigned i;
  for (i = 0; i < sizeof(devtypes) / sizeof(devtypes[0]); i++) {
    char dev[32], addr[32];
    sprintf(dev, "%s%d", devtypes[i].type, (int)procid);
    sprintf(addr, "172.30.%d.%d", i, (int)procid + 1);
    netlink_add_addr4(&nlmsg, sock, dev, addr);
    if (!devtypes[i].noipv6) {
      sprintf(addr, "fe88::%02x:%02x", i, (int)procid + 1);
      netlink_add_addr6(&nlmsg, sock, dev, addr);
    }
    int macsize = devtypes[i].macsize;
    uint64_t macaddr = 0xbbbbbb +
                       ((unsigned long long)i << (8 * (macsize - 2))) +
                       (procid << (8 * (macsize - 1)));
    netlink_device_change(&nlmsg, sock, dev, !devtypes[i].noup, 0, &macaddr,
                          macsize, NULL);
  }
  close(sock);
}

#define MAX_FDS 30

#define XT_TABLE_SIZE 1536
#define XT_MAX_ENTRIES 10

struct xt_counters {
  uint64_t pcnt, bcnt;
};

struct ipt_getinfo {
  char name[32];
  unsigned int valid_hooks;
  unsigned int hook_entry[5];
  unsigned int underflow[5];
  unsigned int num_entries;
  unsigned int size;
};

struct ipt_get_entries {
  char name[32];
  unsigned int size;
  void* entrytable[XT_TABLE_SIZE / sizeof(void*)];
};

struct ipt_replace {
  char name[32];
  unsigned int valid_hooks;
  unsigned int num_entries;
  unsigned int size;
  unsigned int hook_entry[5];
  unsigned int underflow[5];
  unsigned int num_counters;
  struct xt_counters* counters;
  char entrytable[XT_TABLE_SIZE];
};

struct ipt_table_desc {
  const char* name;
  struct ipt_getinfo info;
  struct ipt_replace replace;
};

static struct ipt_table_desc ipv4_tables[] = {
    {.name = "filter"}, {.name = "nat"},      {.name = "mangle"},
    {.name = "raw"},    {.name = "security"},
};

static struct ipt_table_desc ipv6_tables[] = {
    {.name = "filter"}, {.name = "nat"},      {.name = "mangle"},
    {.name = "raw"},    {.name = "security"},
};

#define IPT_BASE_CTL 64
#define IPT_SO_SET_REPLACE (IPT_BASE_CTL)
#define IPT_SO_GET_INFO (IPT_BASE_CTL)
#define IPT_SO_GET_ENTRIES (IPT_BASE_CTL + 1)

struct arpt_getinfo {
  char name[32];
  unsigned int valid_hooks;
  unsigned int hook_entry[3];
  unsigned int underflow[3];
  unsigned int num_entries;
  unsigned int size;
};

struct arpt_get_entries {
  char name[32];
  unsigned int size;
  void* entrytable[XT_TABLE_SIZE / sizeof(void*)];
};

struct arpt_replace {
  char name[32];
  unsigned int valid_hooks;
  unsigned int num_entries;
  unsigned int size;
  unsigned int hook_entry[3];
  unsigned int underflow[3];
  unsigned int num_counters;
  struct xt_counters* counters;
  char entrytable[XT_TABLE_SIZE];
};

struct arpt_table_desc {
  const char* name;
  struct arpt_getinfo info;
  struct arpt_replace replace;
};

static struct arpt_table_desc arpt_tables[] = {
    {.name = "filter"},
};

#define ARPT_BASE_CTL 96
#define ARPT_SO_SET_REPLACE (ARPT_BASE_CTL)
#define ARPT_SO_GET_INFO (ARPT_BASE_CTL)
#define ARPT_SO_GET_ENTRIES (ARPT_BASE_CTL + 1)

static void checkpoint_iptables(struct ipt_table_desc* tables, int num_tables,
                                int family, int level)
{
  struct ipt_get_entries entries;
  socklen_t optlen;
  int fd, i;
  fd = socket(family, SOCK_STREAM, IPPROTO_TCP);
  if (fd == -1) {
    switch (errno) {
    case EAFNOSUPPORT:
    case ENOPROTOOPT:
      return;
    }
    exit(1);
  }
  for (i = 0; i < num_tables; i++) {
    struct ipt_table_desc* table = &tables[i];
    strcpy(table->info.name, table->name);
    strcpy(table->replace.name, table->name);
    optlen = sizeof(table->info);
    if (getsockopt(fd, level, IPT_SO_GET_INFO, &table->info, &optlen)) {
      switch (errno) {
      case EPERM:
      case ENOENT:
      case ENOPROTOOPT:
        continue;
      }
      exit(1);
    }
    if (table->info.size > sizeof(table->replace.entrytable))
      exit(1);
    if (table->info.num_entries > XT_MAX_ENTRIES)
      exit(1);
    memset(&entries, 0, sizeof(entries));
    strcpy(entries.name, table->name);
    entries.size = table->info.size;
    optlen = sizeof(entries) - sizeof(entries.entrytable) + table->info.size;
    if (getsockopt(fd, level, IPT_SO_GET_ENTRIES, &entries, &optlen))
      exit(1);
    table->replace.valid_hooks = table->info.valid_hooks;
    table->replace.num_entries = table->info.num_entries;
    table->replace.size = table->info.size;
    memcpy(table->replace.hook_entry, table->info.hook_entry,
           sizeof(table->replace.hook_entry));
    memcpy(table->replace.underflow, table->info.underflow,
           sizeof(table->replace.underflow));
    memcpy(table->replace.entrytable, entries.entrytable, table->info.size);
  }
  close(fd);
}

static void reset_iptables(struct ipt_table_desc* tables, int num_tables,
                           int family, int level)
{
  struct xt_counters counters[XT_MAX_ENTRIES];
  struct ipt_get_entries entries;
  struct ipt_getinfo info;
  socklen_t optlen;
  int fd, i;
  fd = socket(family, SOCK_STREAM, IPPROTO_TCP);
  if (fd == -1) {
    switch (errno) {
    case EAFNOSUPPORT:
    case ENOPROTOOPT:
      return;
    }
    exit(1);
  }
  for (i = 0; i < num_tables; i++) {
    struct ipt_table_desc* table = &tables[i];
    if (table->info.valid_hooks == 0)
      continue;
    memset(&info, 0, sizeof(info));
    strcpy(info.name, table->name);
    optlen = sizeof(info);
    if (getsockopt(fd, level, IPT_SO_GET_INFO, &info, &optlen))
      exit(1);
    if (memcmp(&table->info, &info, sizeof(table->info)) == 0) {
      memset(&entries, 0, sizeof(entries));
      strcpy(entries.name, table->name);
      entries.size = table->info.size;
      optlen = sizeof(entries) - sizeof(entries.entrytable) + entries.size;
      if (getsockopt(fd, level, IPT_SO_GET_ENTRIES, &entries, &optlen))
        exit(1);
      if (memcmp(table->replace.entrytable, entries.entrytable,
                 table->info.size) == 0)
        continue;
    }
    table->replace.num_counters = info.num_entries;
    table->replace.counters = counters;
    optlen = sizeof(table->replace) - sizeof(table->replace.entrytable) +
             table->replace.size;
    if (setsockopt(fd, level, IPT_SO_SET_REPLACE, &table->replace, optlen))
      exit(1);
  }
  close(fd);
}

static void checkpoint_arptables(void)
{
  struct arpt_get_entries entries;
  socklen_t optlen;
  unsigned i;
  int fd;
  fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
  if (fd == -1) {
    switch (errno) {
    case EAFNOSUPPORT:
    case ENOPROTOOPT:
      return;
    }
    exit(1);
  }
  for (i = 0; i < sizeof(arpt_tables) / sizeof(arpt_tables[0]); i++) {
    struct arpt_table_desc* table = &arpt_tables[i];
    strcpy(table->info.name, table->name);
    strcpy(table->replace.name, table->name);
    optlen = sizeof(table->info);
    if (getsockopt(fd, SOL_IP, ARPT_SO_GET_INFO, &table->info, &optlen)) {
      switch (errno) {
      case EPERM:
      case ENOENT:
      case ENOPROTOOPT:
        continue;
      }
      exit(1);
    }
    if (table->info.size > sizeof(table->replace.entrytable))
      exit(1);
    if (table->info.num_entries > XT_MAX_ENTRIES)
      exit(1);
    memset(&entries, 0, sizeof(entries));
    strcpy(entries.name, table->name);
    entries.size = table->info.size;
    optlen = sizeof(entries) - sizeof(entries.entrytable) + table->info.size;
    if (getsockopt(fd, SOL_IP, ARPT_SO_GET_ENTRIES, &entries, &optlen))
      exit(1);
    table->replace.valid_hooks = table->info.valid_hooks;
    table->replace.num_entries = table->info.num_entries;
    table->replace.size = table->info.size;
    memcpy(table->replace.hook_entry, table->info.hook_entry,
           sizeof(table->replace.hook_entry));
    memcpy(table->replace.underflow, table->info.underflow,
           sizeof(table->replace.underflow));
    memcpy(table->replace.entrytable, entries.entrytable, table->info.size);
  }
  close(fd);
}

static void reset_arptables()
{
  struct xt_counters counters[XT_MAX_ENTRIES];
  struct arpt_get_entries entries;
  struct arpt_getinfo info;
  socklen_t optlen;
  unsigned i;
  int fd;
  fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
  if (fd == -1) {
    switch (errno) {
    case EAFNOSUPPORT:
    case ENOPROTOOPT:
      return;
    }
    exit(1);
  }
  for (i = 0; i < sizeof(arpt_tables) / sizeof(arpt_tables[0]); i++) {
    struct arpt_table_desc* table = &arpt_tables[i];
    if (table->info.valid_hooks == 0)
      continue;
    memset(&info, 0, sizeof(info));
    strcpy(info.name, table->name);
    optlen = sizeof(info);
    if (getsockopt(fd, SOL_IP, ARPT_SO_GET_INFO, &info, &optlen))
      exit(1);
    if (memcmp(&table->info, &info, sizeof(table->info)) == 0) {
      memset(&entries, 0, sizeof(entries));
      strcpy(entries.name, table->name);
      entries.size = table->info.size;
      optlen = sizeof(entries) - sizeof(entries.entrytable) + entries.size;
      if (getsockopt(fd, SOL_IP, ARPT_SO_GET_ENTRIES, &entries, &optlen))
        exit(1);
      if (memcmp(table->replace.entrytable, entries.entrytable,
                 table->info.size) == 0)
        continue;
    } else {
    }
    table->replace.num_counters = info.num_entries;
    table->replace.counters = counters;
    optlen = sizeof(table->replace) - sizeof(table->replace.entrytable) +
             table->replace.size;
    if (setsockopt(fd, SOL_IP, ARPT_SO_SET_REPLACE, &table->replace, optlen))
      exit(1);
  }
  close(fd);
}

#define NF_BR_NUMHOOKS 6
#define EBT_TABLE_MAXNAMELEN 32
#define EBT_CHAIN_MAXNAMELEN 32
#define EBT_BASE_CTL 128
#define EBT_SO_SET_ENTRIES (EBT_BASE_CTL)
#define EBT_SO_GET_INFO (EBT_BASE_CTL)
#define EBT_SO_GET_ENTRIES (EBT_SO_GET_INFO + 1)
#define EBT_SO_GET_INIT_INFO (EBT_SO_GET_ENTRIES + 1)
#define EBT_SO_GET_INIT_ENTRIES (EBT_SO_GET_INIT_INFO + 1)

struct ebt_replace {
  char name[EBT_TABLE_MAXNAMELEN];
  unsigned int valid_hooks;
  unsigned int nentries;
  unsigned int entries_size;
  struct ebt_entries* hook_entry[NF_BR_NUMHOOKS];
  unsigned int num_counters;
  struct ebt_counter* counters;
  char* entries;
};

struct ebt_entries {
  unsigned int distinguisher;
  char name[EBT_CHAIN_MAXNAMELEN];
  unsigned int counter_offset;
  int policy;
  unsigned int nentries;
  char data[0] __attribute__((aligned(__alignof__(struct ebt_replace))));
};

struct ebt_table_desc {
  const char* name;
  struct ebt_replace replace;
  char entrytable[XT_TABLE_SIZE];
};

static struct ebt_table_desc ebt_tables[] = {
    {.name = "filter"}, {.name = "nat"}, {.name = "broute"},
};

static void checkpoint_ebtables(void)
{
  socklen_t optlen;
  unsigned i;
  int fd;
  fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
  if (fd == -1) {
    switch (errno) {
    case EAFNOSUPPORT:
    case ENOPROTOOPT:
      return;
    }
    exit(1);
  }
  for (i = 0; i < sizeof(ebt_tables) / sizeof(ebt_tables[0]); i++) {
    struct ebt_table_desc* table = &ebt_tables[i];
    strcpy(table->replace.name, table->name);
    optlen = sizeof(table->replace);
    if (getsockopt(fd, SOL_IP, EBT_SO_GET_INIT_INFO, &table->replace,
                   &optlen)) {
      switch (errno) {
      case EPERM:
      case ENOENT:
      case ENOPROTOOPT:
        continue;
      }
      exit(1);
    }
    if (table->replace.entries_size > sizeof(table->entrytable))
      exit(1);
    table->replace.num_counters = 0;
    table->replace.entries = table->entrytable;
    optlen = sizeof(table->replace) + table->replace.entries_size;
    if (getsockopt(fd, SOL_IP, EBT_SO_GET_INIT_ENTRIES, &table->replace,
                   &optlen))
      exit(1);
  }
  close(fd);
}

static void reset_ebtables()
{
  struct ebt_replace replace;
  char entrytable[XT_TABLE_SIZE];
  socklen_t optlen;
  unsigned i, j, h;
  int fd;
  fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
  if (fd == -1) {
    switch (errno) {
    case EAFNOSUPPORT:
    case ENOPROTOOPT:
      return;
    }
    exit(1);
  }
  for (i = 0; i < sizeof(ebt_tables) / sizeof(ebt_tables[0]); i++) {
    struct ebt_table_desc* table = &ebt_tables[i];
    if (table->replace.valid_hooks == 0)
      continue;
    memset(&replace, 0, sizeof(replace));
    strcpy(replace.name, table->name);
    optlen = sizeof(replace);
    if (getsockopt(fd, SOL_IP, EBT_SO_GET_INFO, &replace, &optlen))
      exit(1);
    replace.num_counters = 0;
    table->replace.entries = 0;
    for (h = 0; h < NF_BR_NUMHOOKS; h++)
      table->replace.hook_entry[h] = 0;
    if (memcmp(&table->replace, &replace, sizeof(table->replace)) == 0) {
      memset(&entrytable, 0, sizeof(entrytable));
      replace.entries = entrytable;
      optlen = sizeof(replace) + replace.entries_size;
      if (getsockopt(fd, SOL_IP, EBT_SO_GET_ENTRIES, &replace, &optlen))
        exit(1);
      if (memcmp(table->entrytable, entrytable, replace.entries_size) == 0)
        continue;
    }
    for (j = 0, h = 0; h < NF_BR_NUMHOOKS; h++) {
      if (table->replace.valid_hooks & (1 << h)) {
        table->replace.hook_entry[h] =
            (struct ebt_entries*)table->entrytable + j;
        j++;
      }
    }
    table->replace.entries = table->entrytable;
    optlen = sizeof(table->replace) + table->replace.entries_size;
    if (setsockopt(fd, SOL_IP, EBT_SO_SET_ENTRIES, &table->replace, optlen))
      exit(1);
  }
  close(fd);
}

static void checkpoint_net_namespace(void)
{
  checkpoint_ebtables();
  checkpoint_arptables();
  checkpoint_iptables(ipv4_tables, sizeof(ipv4_tables) / sizeof(ipv4_tables[0]),
                      AF_INET, SOL_IP);
  checkpoint_iptables(ipv6_tables, sizeof(ipv6_tables) / sizeof(ipv6_tables[0]),
                      AF_INET6, SOL_IPV6);
}

static void reset_net_namespace(void)
{
  reset_ebtables();
  reset_arptables();
  reset_iptables(ipv4_tables, sizeof(ipv4_tables) / sizeof(ipv4_tables[0]),
                 AF_INET, SOL_IP);
  reset_iptables(ipv6_tables, sizeof(ipv6_tables) / sizeof(ipv6_tables[0]),
                 AF_INET6, SOL_IPV6);
}

static void setup_common()
{
  if (mount(0, "/sys/fs/fuse/connections", "fusectl", 0, 0)) {
  }
}

static void loop();

static void sandbox_common()
{
  prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0);
  setpgrp();
  setsid();
  struct rlimit rlim;
  rlim.rlim_cur = rlim.rlim_max = (200 << 20);
  setrlimit(RLIMIT_AS, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 32 << 20;
  setrlimit(RLIMIT_MEMLOCK, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 136 << 20;
  setrlimit(RLIMIT_FSIZE, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 1 << 20;
  setrlimit(RLIMIT_STACK, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 0;
  setrlimit(RLIMIT_CORE, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 256;
  setrlimit(RLIMIT_NOFILE, &rlim);
  if (unshare(CLONE_NEWNS)) {
  }
  if (unshare(CLONE_NEWIPC)) {
  }
  if (unshare(0x02000000)) {
  }
  if (unshare(CLONE_NEWUTS)) {
  }
  if (unshare(CLONE_SYSVSEM)) {
  }
  typedef struct {
    const char* name;
    const char* value;
  } sysctl_t;
  static const sysctl_t sysctls[] = {
      {"/proc/sys/kernel/shmmax", "16777216"},
      {"/proc/sys/kernel/shmall", "536870912"},
      {"/proc/sys/kernel/shmmni", "1024"},
      {"/proc/sys/kernel/msgmax", "8192"},
      {"/proc/sys/kernel/msgmni", "1024"},
      {"/proc/sys/kernel/msgmnb", "1024"},
      {"/proc/sys/kernel/sem", "1024 1048576 500 1024"},
  };
  unsigned i;
  for (i = 0; i < sizeof(sysctls) / sizeof(sysctls[0]); i++)
    write_file(sysctls[i].name, sysctls[i].value);
}

static int wait_for_loop(int pid)
{
  if (pid < 0)
    exit(1);
  int status = 0;
  while (waitpid(-1, &status, __WALL) != pid) {
  }
  return WEXITSTATUS(status);
}

static void drop_caps(void)
{
  struct __user_cap_header_struct cap_hdr = {};
  struct __user_cap_data_struct cap_data[2] = {};
  cap_hdr.version = _LINUX_CAPABILITY_VERSION_3;
  cap_hdr.pid = getpid();
  if (syscall(SYS_capget, &cap_hdr, &cap_data))
    exit(1);
  const int drop = (1 << CAP_SYS_PTRACE) | (1 << CAP_SYS_NICE);
  cap_data[0].effective &= ~drop;
  cap_data[0].permitted &= ~drop;
  cap_data[0].inheritable &= ~drop;
  if (syscall(SYS_capset, &cap_hdr, &cap_data))
    exit(1);
}

static int do_sandbox_none(void)
{
  if (unshare(CLONE_NEWPID)) {
  }
  int pid = fork();
  if (pid != 0)
    return wait_for_loop(pid);
  setup_common();
  sandbox_common();
  drop_caps();
  initialize_netdevices_init();
  if (unshare(CLONE_NEWNET)) {
  }
  initialize_netdevices();
  loop();
  exit(1);
}

static void kill_and_wait(int pid, int* status)
{
  kill(-pid, SIGKILL);
  kill(pid, SIGKILL);
  int i;
  for (i = 0; i < 100; i++) {
    if (waitpid(-1, status, WNOHANG | __WALL) == pid)
      return;
    usleep(1000);
  }
  DIR* dir = opendir("/sys/fs/fuse/connections");
  if (dir) {
    for (;;) {
      struct dirent* ent = readdir(dir);
      if (!ent)
        break;
      if (strcmp(ent->d_name, ".") == 0 || strcmp(ent->d_name, "..") == 0)
        continue;
      char abort[300];
      snprintf(abort, sizeof(abort), "/sys/fs/fuse/connections/%s/abort",
               ent->d_name);
      int fd = open(abort, O_WRONLY);
      if (fd == -1) {
        continue;
      }
      if (write(fd, abort, 1) < 0) {
      }
      close(fd);
    }
    closedir(dir);
  } else {
  }
  while (waitpid(-1, status, __WALL) != pid) {
  }
}

static void setup_loop()
{
  checkpoint_net_namespace();
}

static void reset_loop()
{
  reset_net_namespace();
}

static void setup_test()
{
  prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0);
  setpgrp();
  write_file("/proc/self/oom_score_adj", "1000");
}

static void close_fds()
{
  int fd;
  for (fd = 3; fd < MAX_FDS; fd++)
    close(fd);
}

static void execute_one(void);

#define WAIT_FLAGS __WALL

static void loop(void)
{
  setup_loop();
  int iter;
  for (iter = 0;; iter++) {
    reset_loop();
    int pid = fork();
    if (pid < 0)
      exit(1);
    if (pid == 0) {
      setup_test();
      execute_one();
      close_fds();
      exit(0);
    }
    int status = 0;
    uint64_t start = current_time_ms();
    for (;;) {
      if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid)
        break;
      sleep_ms(1);
      if (current_time_ms() - start < 5 * 1000)
        continue;
      kill_and_wait(pid, &status);
      break;
    }
  }
}

uint64_t r[1] = {0xffffffffffffffff};

void execute_one(void)
{
  intptr_t res = 0;
  memcpy((void*)0x20000080, "/dev/uhid\000", 10);
  res = syscall(__NR_openat, 0xffffffffffffff9cul, 0x20000080ul, 2ul, 0ul);
  if (res != -1)
    r[0] = res;
  memcpy(
      (void*)0x20000b40,
      "\x0b\x00\x00\x00\x73\x79\x7a\x31\x03\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\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x06\x00\x00\x8a\x8e\x87\x4b\x73\xe9\x90\xb4"
      "\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\x00\x00\x00\x00\x00\x00\x2b"
      "\x40\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x01\x00\x73\x8d\x7a\x31\x00\x00\x00\x00\x00\xff\x07\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\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x73\x79"
      "\x7a\x31\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\xcf\x0a\x00\x00\x00\x00\x00\x00\x00\x00\x0c\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\x16\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x3b\x38\xe9\x67\xac\x82\x06\xea"
      "\xae\x86\xb9\x7e\xec\x0b\x2b\xed\x1e\xe2\x33\x64\xb1\x0d\x6a\xad\x51\x02"
      "\x00\x00\x00\xe2\xa5\xdb\x3c\x6a\x0d\xee\x4a\xfc\x66\xd2\x44\x28\x05\x20"
      "\x1c\x39\x38\x9a\x80\x4c\x41\xc2\x99\x3f\xc6\x7e\x8a\x14\x60\x45\xe1\x4a"
      "\x8a\x08\x00\x55\x0e\x6a\x25\xc0\xef\x65\xf6\x00\x00\x00\x00\x00\x00\x00"
      "\x03\x18\x7f\xaf\xa4\xa1\xee\x6e\xce\x53\xc6\x73\x85\xb8\x83\xa3\x6a\xd2"
      "\x4a\x04\x00\x00\x00\x00\x00\x00\x00\x6a\x8a\xb1\x1b\x0a\x0b\x00\xe7\x7e"
      "\x6c\x16\x18\x9c\xfa\x16\xcb\xe0\x1a\x4c\xe4\x11\x37\x8e\xaa\xb7\x37\x2d"
      "\xab\x5e\xef\x84\xc3\x1b\x2d\xad\x86\x8a\x53\xe6\xf5\xe6\x97\x46\xa7\x1e"
      "\xc9\x2d\xca\xa9\xa7\xdf\xab\x39\x42\x86\xe5\xc8\x1e\xae\x45\xe3\xa2\x5b"
      "\x94\x2b\x8d\xa1\x1e\xdb\x57\x8b\x45\x3a\xca\xc0\x3a\x9d\x34\x48\x00\x00"
      "\x00\x00\x83\xd6\xd5\xfe\x4f\x83\x3d\x4d\x4c\xfb\xee\xf0\xe0\xe6\x2b\xe2"
      "\x05\x00\x00\x00\x3c\x32\x98\x4c\x6c\x4b\x2b\x9c\x33\xd8\xa6\x24\xce\xa9"
      "\x5c\x3b\x3c\x6d\xd8\x73\x56\x9c\xf4\x78\x6f\xc5\x16\x6b\x03\x00\x00\x00"
      "\x00\x00\x1f\xf2\x8d\x3c\xe3\xe3\xb8\xf8\x1e\x34\xcf\x97\xc9\xc8\x41\xcb"
      "\x2e\xf0\x81\x07\xa9\xa9\x65\x49\xe3\xd2\x59\xdf\x17\xe2\x9e\xd6\x4b\xd6"
      "\x12\x08\x13\xf9\xf0\x34\x4e\x13\x95\x06\x70\x1e\x8f\xde\xdb\x06\x00\x9b"
      "\x5e\x4d\x0c\x67\xbd\xa0\xb9\x28\xb7\x32\xcf\xf7\x82\xb0\x68\x40\x75\xf2"
      "\xcb\x78\x51\xef\xdd\x77\x97\xee\x95\xd2\xac\x28\xa8\xca\xbd\x26\xc1\x56"
      "\x82\xaa\x78\xd3\x1a\xec\x95\x6b\xd7\xc2\x78\x06\x40\x34\x34\xb3\xc3\x0b"
      "\x07\x0b\xcc\x82\x66\xe1\x2f\xa6\x66\x02\x05\x62\x56\xf7\x46\x75\xb7\xcb"
      "\x4d\x87\xb2\x70\x8d\x70\xc8\xf3\xdf\x53\xca\xf8\xfe\x18\x0c\x4d\xea\x3f"
      "\x5b\x7a\x87\x1b\x30\xc7\xa5\x75\x3b\x48\xf7\xf0\x91\x92\xa3\x4b\x0e\xfa"
      "\xab\x02\xdc\xa0\x51\x7e\xee\x50\xff\x30\x20\x6f\x78\xec\x82\xc7\x2f\x33"
      "\xe9\x09\xc1\xae\x1f\xe9\x4f\xe0\x75\x9f\x07\xd1\x64\x02\x59\x3e\x33\x35"
      "\xd4\x20\x00\x88\x8c\x90\x5f\xb4\x1d\xbd\xb4\x20\xea\x9f\x87\xfc\x86\x51"
      "\x26\x85\xeb\x72\x61\xe9\xc2\x5e\xdb\x60\x95\xe9\xec\x2b\x74\x3b\xcf\x0f"
      "\x46\x8b\xad\xa0\xb8\x7a\x02\x60\x65\x30\xc2\x78\xa4\xc6",
      770);
  syscall(__NR_write, r[0], 0x20000b40ul, 0x12eul);
  *(uint32_t*)0x200016c0 = 8;
  memcpy(
      (void*)0x200016c4,
      "\x46\x5e\xda\x69\x80\x61\xe4\x5e\x48\x36\xa5\x54\xc2\xf3\x8f\x91\x2f\x9b"
      "\xdb\x31\x41\xff\xb6\x6c\x12\xb6\x66\x41\xb3\x10\x3c\xaa\xec\x47\x54\x28"
      "\x38\x98\x6f\xd1\x45\xa8\x31\xb5\xd8\x38\xfc\xcb\xf3\x0f\x21\xd2\x7a\x07"
      "\x39\x2c\xcb\xd7\x4a\x22\x15\x98\x57\xa9\xb8\x80\x8a\x8f\xe8\x4f\xfb\x6a"
      "\xe9\x1e\xf9\x2c\x03\x0e\xb3\xaa\x91\x07\xea\x3a\xed\x31\x1c\x83\xab\xc6"
      "\x4e\xe4\xd1\xbe\xf2\x3b\x07\x0f\xba\xcc\x55\x8b\x76\xf8\x55\x35\x8d\x3f"
      "\x33\x49\x0d\xdd\x87\xe3\xe7\x09\x85\x81\x55\x9c\xe0\xa2\x89\xd9\x9f\xb4"
      "\xd9\x3a\x5e\x5a\x48\x33\xa1\x86\x1e\x4b\x85\xcb\x46\xc0\xff\x67\x5b\x8e"
      "\xaa\x4f\x92\x35\xf5\xe7\x16\xb2\x3b\x57\xcf\x8c\xa7\x33\x30\xae\xc0\xd3"
      "\x27\x4a\x83\x43\x36\xeb\x25\xf7\xe4\xd7\xdb\x57\xeb\xe4\x84\x25\x5d\x3e"
      "\x26\xd2\x99\xd6\xcd\x83\xd8\xdb\x06\xd1\x9b\xc5\x54\x7e\xb0\x88\x74\xad"
      "\x01\xb0\x05\xd1\xf0\xe4\x2f\x61\xf5\x0a\x8b\x0e\xf7\xe2\xc7\x9c\xeb\x80"
      "\xf7\x29\xf9\xd8\x34\x2a\x83\x4e\x1a\x0d\x91\x9f\x44\x1a\x98\x82\x70\x53"
      "\xd2\x05\x1d\xb7\x27\x15\x64\x7e\xc7\x56\x51\xfc\xef\xa6\xd1\xfa\xdc\x93"
      "\xec\xd2\xc1\x44\x6a\x34\x42\x97\x05\x90\x49\xfa\x53\x5c\x0a\x06\x28\xb2"
      "\xf8\x37\x77\x82\xa2\x5f\x65\xa5\xf0\x3b\x30\xaa\x3d\x48\xcf\x3e\x57\x90"
      "\x8a\xd5\x9a\xa5\x62\x7d\x4e\xe4\xd5\x2d\xdd\x44\xd8\x9b\x83\x35\xa2\xa3"
      "\xe0\x80\x40\xe0\x09\x4f\x8b\x4a\xf4\xe3\x99\x54\xe4\x3a\xab\x48\xbb\xbd"
      "\x96\x35\xc1\x8e\xf4\x77\xd4\x8f\x79\x16\x1b\x73\x49\x48\xe1\xae\x2a\x38"
      "\x7f\x69\xc0\x37\x58\xf8\x17\xf1\xeb\x7c\xa7\x9b\x68\xef\x8e\x57\x85\x09"
      "\x92\xd3\x6a\xb0\x14\x86\x07\x4c\x19\x7e\x41\x82\x47\x15\x86\x1a\x7f\xf8"
      "\xd9\x4d\x9f\x2e\x6f\xb7\xd7\xc3\x1a\x59\xa2\x52\x81\x2a\xd1\x05\x76\x37"
      "\xdb\xfc\x07\x20\xc4\x44\xd5\xf8\x7d\xbc\x16\x35\x96\x8f\x18\xce\x6b\xa8"
      "\xd4\xa9\xea\x89\xd4\x3f\x94\x3b\x98\xe1\xa3\xcb\x14\xf3\xd1\xc6\x9e\xc4"
      "\x8a\x6a\xb7\xf2\x8e\x8b\x9d\xa1\x60\x8e\xa9\xe7\x12\x6f\x97\x57\xae\x65"
      "\xe8\x97\x87\x33\x87\x5d\x19\x00\x93\x3d\x05\x0f\xa7\x71\x31\xbb\xd7\x69"
      "\x22\x0a\x00\xd8\xc9\xba\x03\xbf\x5c\x75\x6a\x2a\x79\x24\x12\x92\x8f\xf9"
      "\x41\x45\x2a\x3d\xae\xbb\x0b\x23\xed\xc1\xf2\x32\x0f\x83\x26\x15\x03\x96"
      "\xa0\x85\x73\x0a\xd5\x7e\x2f\x9a\xe7\x26\xea\x01\x2c\x59\xa6\xa6\x19\x12"
      "\xff\x71\x05\x36\x7b\xb6\x28\xa5\xf1\xe8\x04\x71\x79\xa2\x60\x23\xe8\x82"
      "\xd6\x3a\xdb\x31\x99\x1b\xee\xde\x69\x40\x48\xba\x9e\xa2\x5e\x88\x26\x50"
      "\x7d\xd7\xbb\x36\x92\x8d\x90\x99\x3c\x69\x90\x0a\xcf\x64\x8a\x9b\xe7\x01"
      "\x97\x2b\x19\x2a\x12\xe7\xe9\x88\xe2\xe3\x85\x00\x24\xa3\x2e\x33\x57\x13"
      "\x3f\x30\xd4\x90\xd0\x7d\x23\x03\x9b\x90\xb4\x15\x65\x62\xd1\x23\xb1\x61"
      "\x10\x0f\x96\xc7\xa0\x65\x8b\x1b\xeb\xa7\x83\x1b\x18\x83\xcd\xa9\xee\x44"
      "\xc4\x98\xc0\xf9\x14\x1d\xc1\x51\x31\xf3\x94\x6e\xa6\x7a\x1a\xb6\xe6\xcb"
      "\xc2\xb1\xae\xb1\x86\x9c\xfa\x62\xc6\xf9\x95\x95\x61\xdc\x7f\x4d\x01\x1b"
      "\x27\x8b\xcf\x33\xa5\xc0\xa1\x4e\xd4\xbd\x48\x78\x26\x00\x53\x90\xbb\x1b"
      "\xdc\x1e\x53\x65\xb1\xd5\xc3\xc2\x70\xb1\xbe\x44\xa7\xf1\xaf\xe6\xb1\xc4"
      "\x01\xa6\xd4\x44\x37\x0d\x7e\x05\x84\xf3\xd7\xed\xce\xdd\x31\x20\x4c\x1f"
      "\x3a\x96\x6e\x6e\x19\xdc\xd0\x68\x00\xa2\xda\x33\xf1\xde\x49\x06\xcc\x7a"
      "\xef\x79\xf0\x40\x55\x86\xa4\x0f\x7b\x02\x27\xb8\x03\x15\x79\x0b\x5a\x07"
      "\x79\xa5\xab\x7d\x9c\xfa\xc9\x55\xee\x3b\xd2\xad\x94\x1a\x7c\x93\xc7\x5c"
      "\x01\x28\x8d\x84\x5d\x4e\x62\xc0\x62\xb3\xbf\x45\x65\x11\xd4\xc6\x2f\x73"
      "\x2a\xf1\xee\x05\x43\xa0\xfc\xcf\x34\xd9\x2e\x65\x95\x06\x21\x7e\x73\x50"
      "\x07\x17\xe3\xcc\x45\x66\x3f\x90\xfe\xb5\x7a\x55\xc0\x3f\xe3\x98\x7b\x93"
      "\xb3\xa9\x9f\x98\xe4\x4d\xd5\xd6\xa7\x28\x1b\xad\xbd\x62\x0f\xed\x1b\xb2"
      "\xb0\x4c\x80\x5f\x82\x6b\x27\x01\x8e\xbb\x82\xbf\x76\x72\xd3\xe6\xe8\x98"
      "\x67\x9a\xab\x44\xc0\x1d\x8a\x23\xd9\x2d\x09\xc3\x43\xac\x4c\xdc\xe4\x74"
      "\x83\x17\x07\x00\x4a\xc6\x72\xdd\xae\x5b\x59\x43\x37\x0d\xf0\xb2\x29\x2f"
      "\x27\x3c\x29\x9a\xc5\x9d\x3e\xec\xb9\x45\x87\xd3\x97\x75\xee\xe6\x5a\x24"
      "\x06\x71\x16\xb6\x94\x47\x06\x6a\xd6\xa5\xaa\x82\xb6\x2c\xcb\x23\x6a\x73"
      "\xc4\xd6\xaa\xa1\xa1\xea\xa7\xef\x08\x82\xfd\xfe\xf5\xc7\xe2\xe6\x37\xac"
      "\x88\xd3\x0d\xc8\x9a\xfa\x01\x19\xc4\x51\x1a\xf5\xba\x51\x18\x11\xa2\xc4"
      "\x6c\xb8\x11\x1b\x24\x15\xc6\x7e\x22\x04\x1f\x04\xeb\xb0\x3b\x6e\x0c\xa0"
      "\xd7\x24\xe2\x55\xf0\x11\xc1\x9a\x07\xa1\x6d\x76\xd9\xb5\x2f\xf8\xff\x0d"
      "\x4a\xa1\x73\x6c\x35\x06\x75\xec\x15\xbd\xde\xe6\xab\xfb\x61\xee\x9e\x4e"
      "\x4a\xee\x43\x12\x86\x4e\x48\xb1\xed\x9b\x1b\x8d\x00\x5c\x18\x4c\x0c\x0b"
      "\x1e\x64\xfe\x61\xb7\x37\x6b\x70\xbd\xf9\x18\x11\x18\xa8\xdd\xec\x45\x5c"
      "\x24\x49\x73\xbe\x2e\xf3\x14\xea\x12\x2d\x8b\x0c\x42\x50\x6f\x96\xdf\xeb"
      "\x39\x76\x10\x64\x8c\x4e\xf6\xbe\x8b\x52\x22\x8d\xae\xbc\x9a\xea\x7c\x91"
      "\x53\x86\xb7\xa0\x6b\x91\xca\xf4\xd1\xfb\xec\xab\xbf\xbc\x33\x30\x6c\xe5"
      "\x6b\x4b\x4c\x98\x72\x6b\x60\xae\xc4\xcd\xa8\xa7\xce\x82\x31\x7b\xa8\x4e"
      "\x9c\x10\x3e\x58\x82\xaf\xb6\x39\xc0\xea\x47\xc1\xb0\xe0\xfe\x1f\xdd\xe5"
      "\xf8\xd3\x52\xed\x57\x4f\xba\xe8\x69\xd1\x66\xd4\xac\xd6\x1a\xf3\x43\x82"
      "\x3f\xb9\xc8\x64\xa5\xb9\xa4\x95\x02\xc8\x88\xa0\x46\x1f\xfe\xb1\x9f\x00"
      "\xcd\x43\xad\xe8\x55\x9b\xb7\xb9\xea\x34\x9d\x2e\xb9\xe9\xb2\x8b\xbc\x9c"
      "\xa0\x8e\x77\x60\x67\x5e\xb6\x07\x4c\x79\x13\xba\xe4\x0d\x0d\x8c\x8f\x82"
      "\x4c\xc3\xc7\x73\x7b\x90\xe4\xb2\x7d\xce\xc3\xb3\x96\xde\x8d\x7a\x4b\x2c"
      "\x2f\x63\x15\x9d\xac\xa5\x8a\xca\x8f\xe1\x34\x09\xcf\xe2\xb6\x99\x62\xc1"
      "\x0a\x07\x02\x9e\x1d\x78\xeb\x51\xee\x40\xe8\x09\xbc\x95\x01\xa8\xe9\xd5"
      "\xb9\xa1\x5c\x1e\x5e\xbb\xe4\x5b\x06\xc8\x7c\xd1\xd9\xbb\x05\xfe\x61\x13"
      "\xc3\x61\x10\xba\x9f\x01\x57\x2e\x40\xf7\x97\x9e\x60\x1d\x33\xd5\xa1\x4f"
      "\x59\x8b\x10\xa3\x57\xd6\x4e\x86\x14\x9d\x90\x0a\x18\x52\xa8\x87\x17\xf6"
      "\xc9\x15\xc4\x24\xeb\x4d\xf1\x20\xd2\x5d\xf0\xde\xa8\x7a\x85\x32\x90\xc5"
      "\x1c\x83\xfb\xb5\x79\x37\x1c\x8f\x63\x70\xca\xe5\x5a\x9c\x33\x5a\x39\x37"
      "\xe4\x46\xe7\x42\xc2\x89\x4e\x00\xab\x47\x87\x98\x58\xed\xd4\x4c\x40\x90"
      "\x7f\xcf\xa6\xcd\xfe\x0b\xdd\xd7\x7d\x35\x75\xf4\x40\xd3\x99\xbc\x87\x74"
      "\x1c\xa4\x1e\xd1\xe9\x6c\xbe\x17\xb5\xd8\xb8\x33\x3b\x4e\xd9\x94\xad\x43"
      "\x85\x1d\x76\xf6\x89\xcc\x43\x18\x8e\x9e\x80\xe4\x65\x19\x7e\x4b\x6f\xff"
      "\x40\x19\x59\xe7\xe2\xe4\x11\x63\x1b\xb4\x82\x1e\x7a\x39\xec\xc7\x7e\x80"
      "\x1c\xc7\x02\x5c\xfe\x30\xa8\xcb\x0d\x8b\x9f\xd2\xcd\x05\xc8\x64\x2e\x73"
      "\xa9\x47\xc0\x79\xbc\x81\x24\xaa\x0b\x02\xe4\x30\xed\x96\xd2\xeb\x0e\x58"
      "\x53\x02\x5f\xfa\x1e\x20\xb7\xb2\x9e\xd4\x65\xa7\xfd\xea\xf0\xbf\x78\x53"
      "\x17\x89\x19\xe9\xa8\x9d\x71\x44\x1a\x79\xb1\xe9\x06\x3b\x7b\xe5\x99\x4a"
      "\xe1\x69\x2c\xe1\xad\xad\x20\xd4\xa5\xb6\x74\x59\xb4\xac\xdf\x66\x36\xa3"
      "\x93\x90\xc4\xc1\x23\x5a\x1d\x54\x83\xc7\x42\x3d\x74\x05\xa5\xe6\x84\x9f"
      "\xf8\x62\x2c\x88\xb3\x2a\xb0\x5a\x53\x6f\x3f\xe2\xbb\x04\x57\x71\x39\x58"
      "\xea\x67\xcd\x7c\x8f\x30\xa7\x43\x87\x8a\xf4\x21\x3d\x68\x2e\xfb\xa7\x98"
      "\x99\xd8\x91\xd0\xb6\x31\x9b\xc5\x03\x21\x19\xd2\x6b\x3b\x7f\x1b\xe6\xba"
      "\x39\x06\xb1\x32\x40\xda\x9c\x24\x33\x7e\x7d\x02\xbe\x14\xd4\x9d\xaf\xba"
      "\xa9\x81\xe8\xd1\xe2\x03\xcf\xc2\xe5\x66\x4c\xb8\x52\xa6\xfd\x56\x4e\x8b"
      "\x83\xac\x01\x3d\xc8\xbe\xdf\x17\xb4\xbb\xc4\xc2\x91\x9a\x3d\xb4\x91\xc8"
      "\xb0\x9b\x5e\x2e\xd2\xa9\xde\x2c\xbc\x2e\xad\x94\xc3\xf2\xaa\x4b\xb3\x65"
      "\xe2\xa4\x02\x11\x70\x99\x84\x38\x88\xdd\x02\x0b\x30\xd4\x6a\x1c\xba\xea"
      "\xdc\x39\xf3\x12\x15\x45\x92\xa1\xa0\x44\x93\x88\x99\xed\x69\xc6\xd2\x5f"
      "\x32\xdf\x2f\xe1\x94\xaa\x03\xcd\xb2\xd9\x47\xb5\xd9\x3c\xe3\x0b\x5e\x4b"
      "\x14\xe4\xad\x69\x31\x07\x3a\x6c\x61\x22\xc9\xe8\xe8\xdc\x04\x3f\x84\x2a"
      "\x3b\xc9\x41\xbc\xd3\xc6\xcf\xcb\xf7\xd2\xa5\xe2\x57\xa5\x60\xc6\x4f\x95"
      "\x78\x1c\xe8\x19\x51\xa2\x8a\xef\xbc\x6f\xf5\xba\x79\x7f\x2d\xb3\x23\xd0"
      "\x80\x51\x03\xcc\x9e\xc9\x0f\x66\x97\xd2\x60\x61\x52\x14\xe7\x2b\x0d\x47"
      "\xc5\xec\xaa\xdf\x09\xd7\x7c\x07\x68\x2b\xe1\x12\x49\x8f\x01\x3c\x79\x20"
      "\x77\x68\x52\x76\x31\xf0\x3b\x49\x08\x3d\xd4\x9f\x9c\x6f\x46\xd1\xa1\x04"
      "\x17\xc3\x23\x7a\x49\x02\x85\x5f\x12\x5d\xdc\xe9\x4b\xff\x28\x3f\x06\x4c"
      "\x73\x92\xea\x87\x19\x79\xd9\x72\xc7\x9c\x6e\xed\xf6\xd2\x73\xc8\x59\xde"
      "\xd6\xcb\x16\x40\xcf\x2e\x04\x19\x95\xa1\x22\x94\x91\x41\x63\xcf\xcf\x74"
      "\x9f\x07\xe8\xea\x78\x80\x70\x42\x21\x02\x97\x87\xb5\xa6\x44\x63\x49\x55"
      "\x2d\x9d\x12\x98\x49\x92\x47\xe1\x10\x87\x9e\xcb\xb1\x8d\xd7\x56\xbe\x29"
      "\x02\x83\xe8\x83\xf9\x4f\x0c\x7a\x24\x63\x5f\x4d\xf3\xca\x18\xbf\xa7\x23"
      "\x83\xcf\xf5\x46\x14\xcc\xf7\xca\x36\xb7\x93\xc1\x15\xe6\x52\x17\x16\x2d"
      "\xa6\x08\xea\x88\x80\x7a\xaa\x6d\x32\x66\xed\xe1\xd5\x12\x57\x3f\xbb\x68"
      "\xd2\xaf\x37\xb0\x15\xa5\xd5\xd4\x7d\x9d\x89\x39\x4d\x63\x5a\xf8\x0e\xcc"
      "\x78\x1c\x63\xca\xbc\x65\x9d\x6d\x55\x13\x01\x0f\x66\x4f\x06\x5f\xd3\x8d"
      "\x0b\xc7\x42\xca\x67\xc1\xa0\x38\xe0\x4e\x16\x66\xd1\xe6\xfb\xb0\x8c\x42"
      "\xab\x60\xf9\x94\xd0\x6a\x37\xcc\xdb\x77\xb6\x3b\xf0\x12\x81\x7c\xdb\x2c"
      "\xe3\xcb\x9b\x8e\xdc\xa3\x9f\x6b\xce\xd8\xcb\xc5\x46\x09\xa9\x12\x8e\xa4"
      "\xac\x31\xf2\xd0\xef\x8e\x10\xf7\x6e\x4f\xf3\x76\x83\x34\x14\xa9\x8a\x1f"
      "\x5d\x30\xd3\x16\x3c\xb8\x1d\x2f\xdb\x2b\x08\x81\x90\xec\x28\xb6\x59\xef"
      "\x6e\x13\x48\x32\x3c\xd4\x64\x4f\x3d\x00\x45\xac\xa8\xbe\x52\x77\xe0\xd5"
      "\xed\x26\x20\x18\x49\x5e\xe1\xce\x26\xb9\xd9\xfd\x40\x01\x7d\xbb\x94\x97"
      "\x22\x77\x32\x59\x92\x58\x7e\x44\x33\xa9\x00\x1a\x41\x1b\xf7\xbe\xc9\x16"
      "\xf9\x7f\xce\xf3\x77\x27\xcc\x34\x84\xc8\xb4\x5a\x5b\x82\xef\x83\x22\xd3"
      "\x94\xf1\x98\xb4\x27\x06\xba\x86\xfa\x76\xdc\xb8\x20\x38\xa3\x43\x5e\x8e"
      "\x88\x59\xef\x05\xa4\x01\x55\x65\x8a\x8c\x95\x0b\x1e\x98\x54\xa5\xfc\x59"
      "\x99\x43\x48\xb7\x4d\x73\x48\xd3\xe1\xcb\x67\xe5\x71\x3c\x43\xfd\xb8\x35"
      "\x1a\xe5\xef\x8c\x6e\x37\x41\xd3\x20\xa8\xc4\x81\xf2\x71\x8d\xd6\x4f\x20"
      "\xfd\x9b\x7f\x86\x6b\xfb\x72\xa6\x3f\x13\x89\x0f\x65\x39\xd5\xac\x92\x2c"
      "\xa1\xec\xf8\x35\x4a\x11\x5f\x80\x58\x48\xb9\x08\x79\xe3\xb3\x69\x61\x76"
      "\xf8\x57\xc5\x94\xa4\x45\xd6\x98\x96\x0b\x55\x9a\x38\xf3\xa0\xc5\xf8\x10"
      "\xf5\x1f\xe4\x4b\xa4\x8c\x1c\x6a\x58\xa1\x92\xad\xd7\xe9\x1a\x20\xf3\x16"
      "\x26\xdf\xf9\x96\xa5\xe2\x44\xb6\xe0\x82\x77\x2c\x23\xdf\xaa\xf3\x73\xda"
      "\x1a\xc8\x11\x0e\x54\xbb\xb8\xd8\x6b\x14\x36\xf2\x79\x2e\x3f\xc4\xf0\xe8"
      "\x6f\x59\xeb\x54\x02\x78\xf8\x94\x5d\x7e\xf5\x2a\xc1\x81\x9d\x78\x06\x7a"
      "\x58\xe3\xde\x2b\x82\x3d\xed\xb6\x53\x91\x02\x61\xd1\xc5\xfd\xac\x8a\xf1"
      "\x41\xef\x3c\x84\xf9\x80\x7a\x9c\x73\xc9\xfa\x33\x00\x9e\xea\xeb\xe1\x87"
      "\x93\x11\x9e\x8a\xa2\x13\x6c\xdc\xe7\x7f\x80\xac\xc9\x78\x82\x93\x92\x28"
      "\xae\x04\x60\x02\xbd\xa3\x92\x14\x97\x12\x05\x26\xcc\xcc\x1e\x7e\xfd\x38"
      "\x85\xa8\x33\xa6\x4e\x75\x9d\x73\x06\xe3\xc6\x01\xc2\x50\x4b\x0a\xc0\xbd"
      "\xbd\x37\x01\x4f\xf6\x5e\xf2\x9b\xd4\xc9\x2e\xe4\x6a\x6c\xd6\x35\xd9\x23"
      "\xd3\x00\x73\x2f\xe5\x6a\x4c\xdf\xb4\xab\xa2\xb0\x40\x07\xed\x59\x26\xbc"
      "\x7e\x29\x77\x3c\xe8\x87\x13\x24\xdd\x85\x37\x6a\xfd\xf1\x1e\x05\x0a\xd7"
      "\x68\x97\x02\x0e\x22\x1e\x52\x1c\x89\x4a\xfd\xfe\x3d\x8b\x92\x4e\xbc\xcf"
      "\xfc\x9f\xa7\xc6\x50\x57\x83\x3d\xdb\x77\x3f\xff\x6c\x3c\xd8\x6f\x29\xc7"
      "\x35\x58\x40\x2e\x0e\x58\x56\xb9\x2b\x28\xaf\xac\x38\xfb\xa2\x23\x7c\x21"
      "\x40\xa3\x7e\x27\x86\xd2\x2c\x79\x9f\x74\xaa\x13\x09\x65\x5d\x0e\x99\x2f"
      "\xc5\xc9\xeb\xa4\x7c\x83\xd0\xf3\x46\x9e\xae\xee\x4f\xef\x49\x87\xaa\x66"
      "\x58\x10\x47\x6f\xdc\x12\x1e\xbb\x0b\xbf\x37\x3e\xa1\x42\xba\xbc\xf8\xa6"
      "\x86\x90\x21\x4f\xa8\x01\xbb\xd4\x5f\xf3\x44\xea\xc1\xa0\x8a\xba\x15\x6e"
      "\xe3\x3e\x46\x33\x5a\x95\x66\x73\x50\x6f\x32\x2f\xbe\xe6\x2d\x6c\x54\xd9"
      "\x50\x2a\x5c\x10\xc8\x07\x4a\x3f\x8a\x23\xaf\x01\x6d\xa7\x64\xf2\x6e\xda"
      "\x79\xf1\x7f\x01\x60\x91\x01\x26\x48\x81\x85\x72\x9f\xdd\xdd\x9c\x8e\xbf"
      "\x4c\xb0\x58\x89\x2f\x69\x84\x4d\x90\xbb\xca\xf0\x01\x74\x39\x15\xff\x5b"
      "\x52\x61\x87\xc3\xa8\x78\x52\xf7\x34\xf0\xea\xe6\xb8\xb4\x27\xe3\x68\x95"
      "\x69\xa1\x8b\xe3\xf0\xda\x4d\x36\x60\x70\x56\x68\x60\x51\x5b\x9d\xc6\x69"
      "\x8d\x57\x67\x07\xaa\x73\x49\x26\x86\x43\x9d\x7e\xc2\x9c\x30\x0f\xfa\x64"
      "\x81\xf3\xf0\x02\xf1\x2c\x96\x43\x0a\x02\xa7\xff\x59\xcb\x5b\x96\xa5\x46"
      "\x0b\xc4\x5e\x63\x0d\xde\xc7\x43\x56\xf6\x60\xe7\xd8\x85\x57\x2c\x91\x37"
      "\x4f\x12\x35\x86\x2b\x3d\xd1\x6f\xf0\xd7\xe3\xd8\xd0\xd8\x43\xb4\xf4\x26"
      "\xe2\x72\x9a\x17\x24\xa8\x14\x80\x95\x99\xb7\xe4\x5d\xca\x92\x28\x87\x11"
      "\x5a\xbd\xf4\x61\x4b\x42\xa9\x79\x43\xba\x50\xee\x95\xa8\xae\x89\xeb\xc8"
      "\x0a\x0c\xd6\x05\xdd\x74\xb3\xe1\xbc\xa6\x9f\xd8\xcb\x50\xdb\x47\x25\x93"
      "\x98\x09\xe7\xb1\x59\x01\x78\x56\xf6\xd1\x24\x6c\x35\x2f\x95\x67\xd6\x5e"
      "\x01\xce\x3e\x1c\x9b\x76\xea\xe1\xf4\x5b\x99\x57\x04\x3a\x09\xa5\xec\x2f"
      "\x46\x32\xd9\x3b\xdf\xd9\xe1\x32\x7f\x80\x93\x43\x85\x59\x0e\xb8\x7c\xd3"
      "\x4f\x98\x8f\x30\xac\xd4\x3c\xec\xe7\xf4\x32\xfd\xfe\xc9\xca\x7e\xb6\xb9"
      "\xae\x27\xb2\xe5\x05\xb5\xf4\xda\xc0\x40\xea\x38\x69\xf5\xcb\x8a\x31\xdf"
      "\x15\x86\x53\xa9\x2e\x4d\xb3\xf0\xea\x21\xc6\x96\x36\x22\xd3\xe0\x9f\xbc"
      "\x52\xec\x12\xa6\xf3\x8a\x25\x79\x3e\x50\xa3\xbe\xe1\x2c\xd6\xf5\x39\x21"
      "\x64\xe2\x31\xdd\x6a\x85\x17\xf1\x78\x38\x22\x41\xf8\xe9\x7a\xff\xdc\xfe"
      "\xb1\x32\x46\x75\xd6\xe8\xb4\x74\xec\xcb\xba\x18\x6c\x4b\x83\x22\x9e\xee"
      "\xb2\x8d\x78\x19\x06\xf6\x28\xbd\xf9\xb5\xc2\x07\x3a\x2d\xa7\x8c\x72\xaa"
      "\x0b\x43\xb9\x11\xa8\x25\x64\xd0\x2e\x13\x4d\x16\xb3\x1d\x1e\xd9\xd5\x4e"
      "\x8a\x83\xd2\x24\xdc\x64\x6a\x96\xa9\xa7\xa4\xc9\xfb\xb6\xd8\x44\x08\x28"
      "\x1f\x40\x05\x97\x1e\x3d\xc7\x64\xb0\x01\xda\xbc\x56\x35\x0d\xd5\x06\x7b"
      "\xaf\x9a\x35\x37\x42\x2c\xcb\x49\x34\xc7\x7e\x4e\x92\xb8\x86\x97\xb6\xd1"
      "\xa7\x3e\xe5\x93\x56\xd3\x03\x1a\xff\x46\x2f\x79\x76\x9b\x77\x73\x16\x2b"
      "\x9f\xa8\xd0\x73\x81\x26\xb0\xc5\x3d\x51\xc5\x1f\x99\x5a\xc5\x76\x5d\xa4"
      "\xc0\x2d\x18\x2d\xf7\xee\xc9\xd4\x72\x8d\x04\x70\x7d\xd9\xfb\x83\x61\x8f"
      "\x77\x19\xa9\xe5\xa7\x83\x4f\xe9\x3e\x3e\x40\x19\xb0\x59\x0d\x70\xfe\x8b"
      "\x3b\x4d\xc6\x95\x36\x3e\x1f\xfb\xc4\x85\x73\x91\x5b\x8b\x0e\x46\x39\xa7"
      "\x91\xd4\x74\xba\xe6\xea\x24\xa6\xf8\xae\x96\xb9\xe7\x71\xc8\x8a\x45\x74"
      "\x8b\xed\xb3\x75\x7a\x98\x93\xef\xee\x3e\xab\x00\x90\xa9\xd4\x7c\x56\x2e"
      "\x76\x06\x2f\xa3\x5b\x44\xd5\xb2\x71\x53\xe6\x92\x29\xf3\xe8\x3e\x3c\x9e"
      "\xfd\x83\x60\xee\x06\xe0\xde\xd8\x2c\x7c\xe4\xe7\x13\x9c\x32\x77\xeb\xda"
      "\x90\xdd\x24\xf9\xb3\xcc\xe7\x76\xc5\x91\x11\x7b\x8b\x06\xc8\xc4\xd5\xb2"
      "\x8c\x23\x3b\x42\x48\x42\x09\x08\x6b\x61\xd2\xf8\x10\x14\x69\xc2\xf1\x50"
      "\x04\xc5\xa1\x3f\x34\xa4\xf8\x61\xd9\x8b\xb4\x97\xa8\xb7\xb8\x3e\x01\x0f"
      "\xb4\x23\x85\xea\xf4\x28\x8d\x3c\xb5\xc6\x33\x6f\x11\x31\x20\x63\xbe\x83"
      "\xb7\x51\x4e\xa5\x83\xa2\x16\xe0\xd9\xf8\x74\xaa\x65\x5c\xaf\x46\x38\xfe"
      "\x02\x9d\xbf\xb9\x9c\xdd\x37\x9c\xf7\x26\xdf\xda\x0e\x8a\x13\xf0\x1b\x94"
      "\x76\x7e\x15\xfe\x34\x45\x7a\x2f\x59\x5b\x46\x90\x7d\x7f\x8c\xac\x22\xa3"
      "\xb0\xe7\x9a\x8f\x80\xb4\x4c\x52\xff\xf3\x79\x31\x77\xa8\x92\x34\x71\xe9"
      "\x1f\x72\x24\x55\xc6\xd0\x11\x55\xb9\x5c\xfc\xf9\x9e\x5f\x2e\x72\x3a\x46"
      "\xc6\x0a\x09\xbb\xd4\xf9\xd4\x3c\x2b\xfe\x72\x2a\x06\x4a\x25\x87\x5e\xea"
      "\xe4\xb2\x6d\xf7\xf3\x66\x6d\x02\x8e\xfa\x43\xe9\x19\x0b\x9b\x42\x3c\x67"
      "\x47\xb2\xfe\x87\xa5\x98\x26\x1c\x19\xb9\x0e\xce\x0d\x98\x88\x25\x8d\x64"
      "\x01\x2f\x55\x80\x49\x4d\xcc\x7f\xd2\x9c\x95\xdb\x6e\xf1\x32\x69\xe5\xb4"
      "\x56\x37\x60\xf6\x87\xc3\xe6\xe0\x9e\xe4\x6a\xee\x26\x35\x2a\xb9\x24\x95"
      "\x12\x79\x8a\xe4\x78\x93\xec\x04\xaa\xa9\x57\xe2\x35\x92\x0e\xc5\x81\x37"
      "\x2d\xdf\xb4\x51\x1d\x0e\x31\x1d\xc1\xb3\x00\xf7\x70\x26\x01\xde\xaf\xf7"
      "\x12\x89\xa3\x76\x44\x02\xd9\x7e\x65\xdd\xe8\x0b\x1d\x25\xe4\x22\xba\x5d"
      "\x4d\x16\xca\x43\x15\x45\xfe\x16\xd0\xce\x56\x12\xad\x18\x7a\xda\x94\x22"
      "\xc4\x18\x01\x2c\x5c\xa7\x2b\xed\x12\x07\x3c\x91\xc4\xe4\xa2\x57\xa7\xf7"
      "\x4b\x72\xf7\xa4\x1d\x08\xbd\xf0\xed\x99\x03\x78\xe6\x27\x37\xde\x75\xb5"
      "\x3d\x60\xbc\xfb\x52\x81\xc1\xd7\x0a\xdf\x28\x69\xd0\xeb\x1d\xc7\x9c\xbb"
      "\x16\x7f\x64\xa5\x91\x63\x14\xe7\x62\x99\x08\x2f\xa9\xd1\x14\x50\xa4\x68"
      "\x10\x8d\x39\x5a\x8f\x3e\x59\x7c\x6b\x24\x96\x07\x1c\x98\x72\x7c\x3f\xb0"
      "\x71\x39\x4e\xcf\x73\xfe\x11\x1c\x06\x1e\x2a\xc0\xd7\xab\x94\xd4\x96\x71"
      "\x9e\x05\x8f\xfa\xd2\x87\x09\x66\xb2\x5b\xd3\xe1\xd0\x19\x68\xeb\xde\x7c"
      "\x5b\x62\x04\xe3\xf8\x9d\x71\x69\x02\xe5\x75\xa5\x26\xe3\x92\xea\x7f\x1c"
      "\x69\xed\x2d\x84\x03\xc3\xa7\x3e\xf2\xeb\x92\x77\x5d\xce\xfc\x26\xc5\x7f"
      "\x14\x57\x38\x73\xbc\x5a\xf1\xc6\x26\xc7\x03\x34\x2c\x0c\xf4\x17\xd7\xd9"
      "\xec\x34\x9d\x94\x76\xa1\x0f\x37\x1c\xf4\x50\x9c\x6f\xa5\x3b\xec\xcb\x61"
      "\xf8\x43\x91\xd6\xff\xfe\x76\xd4\x1f\xfa\x4a\xe3\x51\xe8\xb7\xa9\x4d\xf5"
      "\xaf\xa5\xde\x25\x8e\x4b\x0a\x04\x7f\xfa\xa7\x07\x28\x8c\xe4\x24\x9c\x7c"
      "\x76\x43\xe7\x01\xc7\x4f\x76\xd5\xac\xae\xfb\xbc\x0c\x5f\x11\x4d\xc8\x40"
      "\x67\x90\x10\xbe\x69\xb1\xd5\x3e\x39\xe7\x55\x0d\x6d\x53\x96\x0e\x07\x80"
      "\xbb\x73\xfb\xf1\x94\xe5\x13\x6f\x43\x5e\x65\xfd\xe2\xcd\x6e\xe8\xde\x56"
      "\x23\x8f\x6d\x11\x03\x08\x1f\xa8\x0e\x86\xb4\xc2\x4c\x8f\x9b\x22\x6a\x80"
      "\x21\x7f\xbd\xa9\xc2\x8f\xf3\x62\x96\x2b\x99\xfb\x2f\x2d\x2e\x72\x2b\x52"
      "\x6c\x94\x1c\xf0\x0b\x18\x3c\x3a\x1a\xcd\x26\x63\xa9\xbc\x52\x2f\xbc\x09"
      "\x79\x31\xa5\xc5\x53\x6d\xca\xa1\x70\x7a\xe0\x29\xa8\x4e\x59\x6a\x3e\xf5"
      "\x1f\x55\x90\x4a\x31\xc2\x79\xd9\x5b\xc1\x63\x3e\x1d\x2d\x5d\x97\x65\x30"
      "\xb1\xcd\x0d\x95\x2c\x6f\xd5\xe0\x11\x1c\x57\xcd\xef\x49\x60\xe5\x17\x9c"
      "\x31\x59\xab\xb4\xbe\x4b\x74\x76\x1d\xfe\x15\x24\x89\x26\x8d\xc1\x73\x13"
      "\x9e\xcb\x6e\x68\xe1\xa6\xb6\x7a\x6c\x39\x72\x63\xd5\xb2\xe9\x82\x23\xc2"
      "\xf6\xd6\xd4\xcd\xb3\x35\x6c\x5b\xb9\x1f\x38\x60\x0e\xc9\x3f\x35\xc8\xc9"
      "\x11\xac\x16\x17\x32\x0f\xbe\x7c\xec\x35",
      4096);
  *(uint16_t*)0x200026c4 = 0x1000;
  syscall(__NR_write, r[0], 0x200016c0ul, 0x1006ul);
}
int main(void)
{
  syscall(__NR_mmap, 0x20000000ul, 0x1000000ul, 3ul, 0x32ul, -1, 0);
  for (procid = 0; procid < 6; procid++) {
    if (fork() == 0) {
      do_sandbox_none();
    }
  }
  sleep(1000000);
  return 0;
}