// https://syzkaller.appspot.com/bug?id=a486048b63065fd224f57b16d5a2fdece2b40eca
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <arpa/inet.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 <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 <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 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[4096];
};

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;
  if (size > 0)
    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, bool dofail)
{
  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;
  ssize_t n = sendto(sock, nlmsg->buf, hdr->nlmsg_len, 0,
                     (struct sockaddr*)&addr, sizeof(addr));
  if (n != (ssize_t)hdr->nlmsg_len) {
    if (dofail)
      exit(1);
    return -1;
  }
  n = recv(sock, nlmsg->buf, sizeof(nlmsg->buf), 0);
  if (reply_len)
    *reply_len = 0;
  if (n < 0) {
    if (dofail)
      exit(1);
    return -1;
  }
  if (n < (ssize_t)sizeof(struct nlmsghdr)) {
    errno = EINVAL;
    if (dofail)
      exit(1);
    return -1;
  }
  if (hdr->nlmsg_type == NLMSG_DONE)
    return 0;
  if (reply_len && hdr->nlmsg_type == reply_type) {
    *reply_len = n;
    return 0;
  }
  if (n < (ssize_t)(sizeof(struct nlmsghdr) + sizeof(struct nlmsgerr))) {
    errno = EINVAL;
    if (dofail)
      exit(1);
    return -1;
  }
  if (hdr->nlmsg_type != NLMSG_ERROR) {
    errno = EINVAL;
    if (dofail)
      exit(1);
    return -1;
  }
  errno = -((struct nlmsgerr*)(hdr + 1))->error;
  return -errno;
}

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

static int netlink_query_family_id(struct nlmsg* nlmsg, int sock,
                                   const char* family_name, bool dofail)
{
  struct genlmsghdr genlhdr;
  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, family_name,
               strnlen(family_name, GENL_NAMSIZ - 1) + 1);
  int n = 0;
  int err = netlink_send_ext(nlmsg, sock, GENL_ID_CTRL, &n, dofail);
  if (err < 0) {
    return -1;
  }
  uint16_t id = 0;
  struct nlattr* 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) {
    errno = EINVAL;
    return -1;
  }
  recv(sock, nlmsg->buf, sizeof(nlmsg->buf), 0);
  return id;
}

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);
  if (err < 0) {
  }
}

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);
  if (err < 0) {
  }
}

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);
  if (err < 0) {
  }
}

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);
  if (err < 0) {
  }
}

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);
  if (err < 0) {
  }
}

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);
  if (err < 0) {
  }
}

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);
  if (err < 0) {
  }
}

#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);
  if (err < 0) {
  }
}

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);
  if (err < 0) {
  }
}

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));
  if (err < 0) {
  }
}

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));
  if (err < 0) {
  }
}

static struct nlmsg nlmsg;

#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 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_query_family_id(&nlmsg, sock, DEVLINK_FAMILY_NAME, true);
  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, true);
  if (err < 0) {
    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 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;
  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;
  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 = {(uint32_t)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_query_family_id(&nlmsg, sock, WG_GENL_NAME, true);
  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 < 0) {
  }
  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 < 0) {
  }
  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 < 0) {
  }

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);
}

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);
  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 (mount(NULL, "/", NULL, MS_REC | MS_PRIVATE, NULL)) {
  }
  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 setup_binfmt_misc()
{
  if (mount(0, "/proc/sys/fs/binfmt_misc", "binfmt_misc", 0, 0)) {
  }
  write_file("/proc/sys/fs/binfmt_misc/register", ":syz0:M:0:\x01::./file0:");
  write_file("/proc/sys/fs/binfmt_misc/register",
             ":syz1:M:1:\x02::./file0:POC");
}

static void setup_sysctl()
{
  static struct {
    const char* name;
    const char* data;
  } files[] = {
      {"/sys/kernel/debug/x86/nmi_longest_ns", "10000000000"},
      {"/proc/sys/kernel/hung_task_check_interval_secs", "20"},
      {"/proc/sys/net/core/bpf_jit_kallsyms", "1"},
      {"/proc/sys/net/core/bpf_jit_harden", "0"},
      {"/proc/sys/kernel/kptr_restrict", "0"},
      {"/proc/sys/kernel/softlockup_all_cpu_backtrace", "1"},
      {"/proc/sys/fs/mount-max", "100"},
      {"/proc/sys/vm/oom_dump_tasks", "0"},
      {"/proc/sys/debug/exception-trace", "0"},
      {"/proc/sys/kernel/printk", "7 4 1 3"},
      {"/proc/sys/net/ipv4/ping_group_range", "0 65535"},
      {"/proc/sys/kernel/keys/gc_delay", "1"},
      {"/proc/sys/vm/nr_overcommit_hugepages", "4"},
      {"/proc/sys/vm/oom_kill_allocating_task", "1"},
  };
  for (size_t i = 0; i < sizeof(files) / sizeof(files[0]); i++) {
    if (!write_file(files[i].name, files[i].data))
      printf("write to %s failed: %s\n", files[i].name, strerror(errno));
  }
}

#define NL802154_CMD_SET_SHORT_ADDR 11
#define NL802154_ATTR_IFINDEX 3
#define NL802154_ATTR_SHORT_ADDR 10

static void setup_802154()
{
  int sock_route = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
  if (sock_route == -1)
    exit(1);
  int sock_generic = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC);
  if (sock_generic < 0)
    exit(1);
  int nl802154_family_id =
      netlink_query_family_id(&nlmsg, sock_generic, "nl802154", true);
  for (int i = 0; i < 2; i++) {
    char devname[] = "wpan0";
    devname[strlen(devname) - 1] += i;
    uint64_t hwaddr = 0xaaaaaaaaaaaa0002 + (i << 8);
    uint16_t shortaddr = 0xaaa0 + i;
    int ifindex = if_nametoindex(devname);
    struct genlmsghdr genlhdr;
    memset(&genlhdr, 0, sizeof(genlhdr));
    genlhdr.cmd = NL802154_CMD_SET_SHORT_ADDR;
    netlink_init(&nlmsg, nl802154_family_id, 0, &genlhdr, sizeof(genlhdr));
    netlink_attr(&nlmsg, NL802154_ATTR_IFINDEX, &ifindex, sizeof(ifindex));
    netlink_attr(&nlmsg, NL802154_ATTR_SHORT_ADDR, &shortaddr,
                 sizeof(shortaddr));
    int err = netlink_send(&nlmsg, sock_generic);
    if (err < 0) {
    }
    netlink_device_change(&nlmsg, sock_route, devname, true, 0, &hwaddr,
                          sizeof(hwaddr), 0);
    if (i == 0) {
      netlink_add_device_impl(&nlmsg, "lowpan", "lowpan0");
      netlink_done(&nlmsg);
      netlink_attr(&nlmsg, IFLA_LINK, &ifindex, sizeof(ifindex));
      int err = netlink_send(&nlmsg, sock_route);
      if (err < 0) {
      }
    }
  }
  close(sock_route);
  close(sock_generic);
}

uint64_t r[1] = {0xffffffffffffffff};

void loop(void)
{
  intptr_t res = 0;
  res = syscall(__NR_socket, 0x11ul, 0x8000000000000003ul, 0);
  if (res != -1)
    r[0] = res;
  *(uint32_t*)0x20001640 = -1;
  syscall(__NR_setsockopt, r[0], 0x107, 0xf, 0x20001640ul, 4ul);
  *(uint64_t*)0x20000440 = 0x200001c0;
  *(uint16_t*)0x200001c0 = 0x104;
  *(uint32_t*)0x200001c4 = 5;
  *(uint32_t*)0x200001c8 = 0;
  *(uint32_t*)0x200001cc = 0;
  *(uint32_t*)0x20000448 = 0x80;
  *(uint64_t*)0x20000450 = 0x20000140;
  *(uint64_t*)0x20000140 = 0x200027c0;
  memcpy(
      (void*)0x200027c0,
      "\x84\x84\x36\x11\xe8\x0d\x08\x23\x3e\x49\x6d\x56\x71\xdc\x71\xff\x04\x29"
      "\x1b\x2c\x15\x01\x77\x25\x02\xbb\x86\x70\x63\xf7\x06\x47\x86\x2a\x15\x25"
      "\x77\x81\xbc\xf1\xd1\xe4\x98\x10\x4d\x08\x28\x33\x91\x4e\xe6\x8a\xfc\x14"
      "\xac\x7c\xb8\x59\x75\x75\x1b\x8c\x31\x27\x19\x48\xee\x30\x3a\xa2\xa3\x4b"
      "\xe9\x64\xb8\xc1\xb9\x56\x38\x60\x7b\x2e\x7e\xc7\xfd\xa2\x8f\xea\x4c\xaa"
      "\xda\x02\x8a\x39\xbf\x25\x95\x38\x21\x4e\x80\xb9\xb5\xc9\xb5\x8b\x1c\xb3"
      "\x6a\x93\x3d\x64\xa2\x53\x24\x56\x6f\x77\x33\xea\x93\xfc\x91\xc9\x8f\xec"
      "\x26\x8c\xb1\xe2\x14\x81\x98\xe2\xcc\xf2\x46\x3d\x2a\xe5\x6c\x61\xac\x43"
      "\x6c\x33\x6b\x2d\x42\x1c\x6b\x51\x2a\x60\x09\x55\xc6\xed\xe3\xe5\x82\x01"
      "\x65\xea\xbf\x2d\xda\x9e\x22\x94\x30\x04\x85\x32\x7a\x6d\x28\xf7\x91\x3f"
      "\x19\xd7\x9e\x5f\x47\x86\x26\xbb\x6a\x60\x7c\x2f\x50\x85\xc6\x87\x49\xed"
      "\xc4\x17\xda\x6c\xc4\xdb\x8c\x60\x52\x15\x57\x50\x67\x83\x6f\x62\xb0\xb3"
      "\xe0\xb4\x9e\x8c\x32\x12\x40\xc1\xb1\xb5\x4b\xab\xad\x07\xa7\x00\x0c\x4e"
      "\xb9\x92\x00\xb9\xd0\x16\xf1\x55\x46\x83\xb7\xb3\x32\x3a\xb3\x7f\x06\x6b"
      "\x97\x3d\x58\x43\x45\x79\x2f\xeb\xa5\xb7\x19\xec\x04\x13\xd1\xc3\x76\x89"
      "\xce\x92\x7d\xe5\x38\xb4\xac\x16\x68\x7f\x65\x95\x12\x02\x20\xe5\x20\x5f"
      "\x79\x22\x7e\x43\xa8\xea\xa6\x10\xc8\xc2\x32\xbc\xb8\x11\xb4\xa6\x3e\xab"
      "\x1b\x87\xda\x21\x47\x00\x40\x8e\x83\x07\x74\xdc\xd6\x31\x8b\xec\x9e\xf2"
      "\x8b\x91\x71\xb0\x49\x2b\xdd\xb0\x90\x09\xa8\xd2\x6f\x79\x77\x13\xd8\x15"
      "\x48\xe0\xc5\x47\xb8\xaa\x7b\xcd\x84\x4c\x2c\xfa\x69\x56\x0d\xea\xa6\x18"
      "\x8b\x57\x67\x92\xcc\xcd\xc0\x9a\x1f\x94\xda\x4e\x4c\x4f\x05\xe4\xd0\x53"
      "\xd6\xa2\xfc\xdb\x25\x3d\xce\x69\x6d\x6c\xd8\x5a\x1a\xee\x74\x0c\x2a\x84"
      "\xe3\xd6\x3a\xa5\x58\xd3\xdb\x42\x53\x1e\x23\x03\xc6\xe8\xcf\xc0\xb6\xe3"
      "\x19\x50\xfc\xbf\x30\x21\xf7\x08\xd4\x7c\x05\xed\xcf\x3f\xcd\xd6\x62\x26"
      "\xd9\x9f\x1f\x13\x2d\x73\xf6\x98\xe0\x82\x0c\x39\x5f\x34\x3e\x0d\x69\x04"
      "\x2b\x6b\x06\xbf\x40\xb4\x5e\xa6\xa8\xf5\x2a\x32\x25\x5f\x3c\x40\xd4\xe9"
      "\xfb\x93\x08\x44\x21\xa6\x23\x51\x16\xbe\x29\x12\x5e\x5a\xfe\x2d\x8c\x41"
      "\x8c\xed\xb2\x54\x8d\xb2\xfc\xad\xe8\x0c\x11\x8a\xf8\xa6\xbe\x1e\x65\x05"
      "\x17\x51\x97\x21\xa5\x92\x0f\x84\x26\x62\xaa\xd3\x74\x73\xf2\xba\x60\xf7"
      "\xee\x84\x66\xf8\xdb\xa8\x29\xc3\xe1\x7d\x3e\x61\x8e\xf5\x76\x8b\x1b\x0a"
      "\x89\x91\xc6\x4f\x2e\x59\x2e\x72\x6b\xb4\x63\x6d\x13\xfb\xd0\x4e\xd7\x1b"
      "\x03\x1e\x1c\x1a\x27\xfe\x30\x32\x5e\x52\x1a\x98\x45\xef\x1a\xba\xe6\x20"
      "\xce\xfb\x21\x6c\x47\xa1\xe3\xb4\xdb\x8c\xb1\x28\x70\x06\xb9\xfe\xd8\x27"
      "\xfa\x5a\x94\x4b\x80\x45\xa3\x39\x7b\xa4\x20\x8c\x5c\xb6\x71\x17\x39\x3b"
      "\x2f\x83\x6e\x4e\x79\x19\x6e\x05\xeb\xd7\x48\x8f\xa7\x66\x19\xea\x05\x21"
      "\x98\x2b\x9c\xb7\x6a\x63\xbe\xd4\xf0\xff\xe4\x8c\xeb\x4b\x2b\xbe\x4e\x59"
      "\x0d\xec\x80\xec\xa4\x74\x00\x27\xf8\x55\xda\xd0\x63\x13\xa2\xa0\x18\x89"
      "\x32\xa2\x06\x9f\xc7\x0b\x8a\xf0\xe4\x29\x4a\x7b\x51\xb5\x52\xad\x72\xcc"
      "\xd5\x62\x5f\xd2\xa9\x71\x35\x4b\xad\x29\x30\xee\xc5\xf4\x1e\x0a\xe2\x71"
      "\x22\x4b\x8a\x91\x60\xd9\x69\x65\xd3\x72\xc6\x5e\x4a\x0a\xdc\xee\x1e\x8b"
      "\xb8\x44\x06\xb6\xa5\xc5\xe4\xd6\xed\x7f\xf5\x29\xaf\xdf\xfc\xdb\xea\x58"
      "\xf4\x3e\x7c\x39\xf8\xaa\x98\x45\xfc\x92\xc8\x4a\xa8\xbc\x0e\xef\x23\x8d"
      "\x19\xb2\xcd\x3d\xd0\xc6\xd5\x26\x94\xc9\x9f\x2f\x49\x3b\x70\x64\x07\x6b"
      "\x62\xd1\x39\x83\x7e\xda\x3d\x11\xe4\x3a\xe5\x2f\xb7\x71\xc1\x58\x59\x74"
      "\xbc\xc6\xe2\xad\xb2\x40\x96\xfd\x3d\x5a\xc8\x67\xaf\xb9\xcf\xb6\xed\x07"
      "\xcb\x34\xe2\x27\xf0\x0e\xd5\x54\x14\x99\xd2\xe7\xe3\xb4\xf3\xda\x83\x1a"
      "\x3b\x9c\x32\xde\x8b\xe0\xf5\xb4\x5e\x82\x48\xb5\xa2\x81\x1b\xb4\x52\xca"
      "\x6d\xc7\xd5\x6d\x87\x53\x13\x47\xad\x31\x6e\x6e\x8c\x6b\xf8\x87\xf7\x0f"
      "\x45\x5c\xde\xae\x8d\xcf\xff\x00\x4b\x0e\xd1\xb8\xfd\x63\xd1\xd5\xe5\x5c"
      "\xbd\xf1\x54\x1b\x87\x82\x1f\x3c\x90\xf7\xd4\x7e\x54\x2e\xc7\x5b\x13\x2f"
      "\x52\x85\x86\x2d\x3e\x9f\xd8\x4f\x84\x1e\x4d\x13\x7e\x27\x35\xd5\xf2\x3c"
      "\x87\x10\x8b\xca\xa5\x91\xa1\x4a\xb2\xab\x43\x80\x2f\xfb\x17\x64\x53\x31"
      "\x24\x20\xfe\x0e\x79\xaf\x72\x36\x85\x01\x04\xbc\x3e\x92\x5b\x16\xfd\x0a"
      "\x57\xee\x99\x59\xae\x8c\xcc\x13\xc8\x43\x36\x54\x42\xbb\x46\x2d\x86\xea"
      "\xd8\xa2\x0c\x41\xe0\x64\xe0\xad\x28\x6f\x4a\xa4\xc6\x9d\x00\x46\xe5\x01"
      "\x2c\xec\xf4\x25\xb0\xdf\x11\xc0\xb4\x58\xe3\x18\x04\xd8\xff\xe9\x85\x54"
      "\xaf\xc6\x9b\x47\x5c\xa0\x3c\xbe\x92\x68\x06\xb2\x76\xe1\x9a\xa4\x7b\x3e"
      "\x10\x1b\x95\xee\x2f\xd3\x2b\x9f\x06\xa3\xfc\xf6\xf0\x78\xce\x69\x4f\x9e"
      "\xd8\xfe\x03\x42\x54\x46\xbc\xdd\x0e\x7c\x1f\x4d\x3e\x10\x9b\xbe\x30\x02"
      "\x0c\xb8\x1b\x64\xbb\x0c\xdf\xd8\xa0\xd3\x3e\x11\x43\xc4\xfb\xb7\xfe\xf1"
      "\x5d\x10\x59\xe1\xf2\x0b\x39\x4f\x69\xd4\x82\xa1\xda\x5f\xd4\x95\x08\x80"
      "\x8c\x80\xc8\x24\xa8\x43\x69\x83\x86\xb4\xd3\xc3\x88\x5f\x06\x3a\xa3\xc0"
      "\x47\x62\x4f\x93\x29\x80\x40\xfb\xc7\x06\x02\x0d\x29\x5c\xf3\xf3\x63\xd4"
      "\x2f\x21\xd3\x27\xd9\x1d\x10\x1c\xc4\x75\x8c\x67\x19\x5a\x49\xc3\xb3\x00"
      "\x2e\x14\xcf\x28\xa5\xb8\x89\x9b\x7e\xf0\x8b\x67\x13\xd8\x9c\x70\x49\xef"
      "\x59\x43\x61\xb1\xd8\xa0\xc5\x83\x8f\xf3\x0a\x6a\x3f\x1b\x0f\x9f\x94\x7c"
      "\x76\xd5\xf1\x62\x9d\x3d\xf2\x15\x97\x5b\x49\x8b\xd3\x3d\xdb\xc4\x47\x98"
      "\xa9\xf7\x6b\xa0\xc4\x1e\x9a\xd5\x65\xe4\x4e\xbf\x3c\x33\x3f\xad\xe1\xd4"
      "\x30\x6b\x10\x42\xc5\xe2\xe8\x55\xf3\xe5\xfd\xcd\x64\xce\x7f\xdf\x73\xb0"
      "\x90\x44\xbe\xc8\xa2\xf0\xce\xcb\xb0\x0c\x6c\x76\xc8\x58\x91\x47\x8a\xa4"
      "\xba\xe6\x28\x25\x41\xcf\xf6\x13\xf2\xb4\x61\xcc\xe1\x15\xba\x0b\x78\xc6"
      "\xf5\x0f\x45\x93\xef\xe5\xc2\xae\x55\x8f\x6c\x05\x34\xdb\x14\xd5\xb4\x44"
      "\x16\xb0\x8a\xbe\x45\xc6\xdd\xf5\xc7\x49\xaa\xe8\x14\x1e\x42\x7a\x0a\x2f"
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      "\x51\x3f\xa3\xb7\xc6\xaa\x67\x7a\x22\xe0\x37\xe2\xbd\x77\x31\x14\x89\x96"
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      "\x93\x47\x99\xf5\x06\x3c\x58\xc1\x81\x6c\xaa\x4b\x40\x0b\xb0\x91\x4f\xc7"
      "\x30\x01\x11\xc0\x63\xe5\xc0\x19\x10\xb0\xb0\x18\x03\xa1\xa3\x48\xf3\x87"
      "\x54\x22\x36\xd8\x2b\xef\x6d\x92\x6b\xa5\x71\xca\x0e\x77\x45\xe5\x86\xed"
      "\xdf\x23\x34\xba\xea\xfd\x7b\x11\x49\x50\x2e\x78\x1e\xc4\x52\x99\xc3\xf3"
      "\xcd\x34\xc3\x62\x80\x57\xde\xf3\xc0\x12\x87\x81\x23\x22\x4e\x33\x82\x8b"
      "\x21\x60\x22\xdf\xeb\xdc\x6a\x28\x4e\x50\x38\x68\xa1\xe4\x36\x9a\xf8\x19"
      "\xfc\xfd\x41\x24\xd8\x01\x38\x6d\xbb\x12\x3c\xe8\x8d\x54\x71\x2f\x63\x51"
      "\xc7\x7a\xad\x60\x39\xb2\xf5\xff\x3d\x0d\x19\x03\xc7\x40\x43\x86\x4f\xa9"
      "\xf8\x01\x84\x7a\xc8\x44\x62\x80\xa3\x17\x39\xe0\x21\x5b\xce\x77\xc0\x8c"
      "\x24\x77\xe9\x07\x9f\x62\x22\x5c\xf1\x79\xda\x44\x5e\x9f\x22\x05\x60\xd9"
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      "\xd6\x39\x8e\x08\xbb\x89\x3b\x5d\xd8\xe5\x87\x01\xe4\x1e\x75\xfd\x01\x82"
      "\xd3\xeb\xac\x89\x20\xaa\xd7\xf4\x77\x7b\x4e\x09\x6e\xb5\xc5\xa1\x7e\x44"
      "\x0c\x0a\x5b\x95\xca\x92\xbb\xae\xc6\x31\x30\xbb\xc4\x1d\x0c\xbf\xcc\xb0"
      "\x3e\xb6\xc1\xcf\xfc\x85\x58\xbd\x25\x5c\x20\x96\xa2\x85\x34\x6d\xd9\x60"
      "\x0f\x33\x55\x4a\xcf\x62\xae\xf1\x9d\x27\x76\xbd\x5d\x8a\x5a\x9f\x0a\x49"
      "\x76\x02\x2b\x8a\xc1\x40\x0e\x3f\x0a\x7f\xa2\x27\xeb\xc0\xad\x80\x18\x79"
      "\x39\x56\x24\x92\x15\x4c\x70\x87\x39\xf8\x65\xa9\x80\x35\x12\xa6\x21\x3d"
      "\x50\x26\xb1\xfe\xbd\x0a\x20\xce\x4b\x3a\x4d\x7d\x90\xdc\x5a\xf3\xf5\xbe"
      "\xaa\x06\xb8\xaf\x1d\x19\x55\x66\x55\xac\x57\x8f\x92\x66\xf5\xd3\xb3\x93"
      "\xf2\x4a\x2d\x11\x2e\xee\x90\xf7\x49\xe1\xf0\xa6\xe2\x7f\xf2\x46\x9f\x1c"
      "\xc2\x1d\x5b\xcb\xf3\x55\x16\x8c\x62\x04\x4f\xd1\xcc\x48\x61\x54\x4a\x81"
      "\x75\xf6\x40\xad\x3c\x5b\xb6\xc8\x1e\xfa\x33\x18\x22\xef\xb7\x0b\x57\xf4"
      "\x11\x0d\xee\xbe\x68\x79\x42\x11\xee\x4a\x95\xc2\x59\xb4\xeb\x51\x9d\x88"
      "\x7b\x6c\xfd\xee\x17\x87\x58\x38\x2f\x4f\x63\xc8\x0b\x1f\x0b\x9f\x23\x37"
      "\xdd\x5a\x11\xa5\xb1\xfb\x04\xc3\x31\x5f\xf9\x42\xcf\x7f\x5d\x7d\xa3\x6c"
      "\x08\x8a\x65\xf8\x65\x29\xd0\x03\xc8\xc9\xbf\x74\x39\x2f\x9d\x89\x7b\x53"
      "\xa4\x22\xcb\x3b\x3f\x9e\x09\xf9\x93\x65\x14\xac\x10\x0f\xec\xf3\xc9\xa5"
      "\x73\xaa\xe0\x41\xce\x3c\x86\xcc\xe6\xdc\x28\x84\x05\x3b\xc5\x6a\x51\x07"
      "\x91\x39\x2b\xda\x45\x4a\xa7\xdc\x58\x0a\x3a\x7c\xf7\x1c\x18\xdd\x57\xbe"
      "\xc2\x1c\x0e\xb1\x43\xde\xb6\x54\xd8\xb0\xfc\x64\x2b\xbc\x74\x84\xdc\x99"
      "\x43\xc2\x10\x21\x69\xa6\xac\xa2\x78\xf0\xfd\x81\xb1\xb6\xb0\x82\xb3\x55"
      "\x44\x3c\x81\x98\x28\x4e\x3b\x01\xe9\xff\xf1\xc8\xdf\x18\x95\xe9\xc9\x59"
      "\x3f\x16\x43\x8c\x7f\x73\x7f\x2a\xb5\x6c\x0f\x57\xea\xdf\xcd\x57\x0c\x5b"
      "\x04\xb5\x21\x8f\xc7\xd2\xc0\xcd\xca\x5c\x7b\xa5\xff\x42\x8b\x4f\xe5\x41"
      "\xd4\xc8\xf6\xfe\x27\x4d\x2a\x32\x90\x34\x3f\x3d\x69\x44\xc9\x18\x57\x1e"
      "\x35\x0c\xaf\x2e\xc3\xcc\x96\x01\xcd\x5b\x71\xe8\xf2\x2f\xf4\x01\x02\x4c"
      "\x51\xc5\x92\xbf\x47\x6f\x25\x5b\x20\x09\x62\xe2\xed\x01\x4c\xe5\x51\x37"
      "\x62\x35\xe8\xd2\x20\x76\x3f\x8c\x9c\x90\x45\x70\xd6\xb6\x22\x7c\x94\xd6"
      "\x2e\x08\xb0\xc9\xbd\x35\x57\xb9\x6c\x8e\xd2\x27\x68\x5f\xc5\x4d\x43\xe4"
      "\xa0\x5c\xa5\x99\x6c\x4d\x8e\x3e\x50\x76\xf3\x94\xb0\xc0\xbc\x7c\xdf\x97"
      "\x2f\x99\x6c\x45\x98\x7f\xfb\x2d\x6a\x13\x8a\x17\x72\xb7\xff\xbe\xaa\x66"
      "\xce\xdd\xd3\x48\x39\x05\x1c\x61\xf9\xd8\x71\x53\xf2\x38\x23\xf9\x17\x8b"
      "\x56\xeb\x01\x65\x24\xba\x86\x2c\xdc\xa9\xd1\x47\xb5\xbd\xa7\x95\x53\xad"
      "\xe8\x25\xd5\xa1\xb8\xea\x3a\xcf\x8c\x7c\xad\x88\xcd\x11\xb6\x86\x25\xd3"
      "\x67\x93\x1b\x9a\x02\x96\xb2\x28\xfd\x2c\x52\xda\x32\xd0\x50\xd7\x46\x94"
      "\x2f\xb3\x8d\xbb\x3d\x5e\x2a\xd7\x5b\x72\x43\xf7\x34\x0a\x8c\x0d\x4c\x7b"
      "\x15\x6e\x03\x0b\x6e\xb1\x54\xec\x6c\x47\xc1\xb6\xaf\x30\x7e\xa0\xe8\x91"
      "\x6e\x21\x16\x65\x72\x63\x23\x21\xf8\xb4\x97\x8e\xcd\x1f\x8b\x40\x29\xa6"
      "\xba\xba\x4d\xa2\xdd\x98\x4d\x24\x5d\x1b\x6d\xd4\xa6\xf2\xa7\x2a\xcc\x4d"
      "\x90\xf4\x80\xde\x48\x98\x26\x13\x0d\xd7\xb2\xa9\xad\x79\x93\x8e\xd6\xde"
      "\x65\xc7\xa5\x6e\x05\x15\xd8\x43\x02\xa8\xa8\xee\x98\xc2\x0e\xa3\x2d\xb2"
      "\x0b\x23\x1b\x9d\x00\xe0\x3d\xd7\x4b\x80\x4e\x15\xc7\x0c\xe8\xa6\xb1\x69"
      "\xff\xa7\x9d\xb7\xe2\x40\x62\xb2\xdd\x35\x60\x50\x23\x37\xbb\x03\xc8\x50"
      "\x6a\x25\xce\x77\xea\xa0\x6f\x9f\xb5\x4a\xff\x0b\xab\x95\x45\xc3\x2b\xb9"
      "\xa3\x5a\x70\x03\x61\xf4\x6a\x39\x95\xef\x92\x9a\xf7\x69\x8b\xf1\x6d\xf9"
      "\xd8\x96\x5f\x4d\x93\x9f\x5d\xba\x6e\xb2\x38\xc1\x08\x9c\x25\x61\x75\x68"
      "\xb2\x97\x60\xec\xbf\xef\x27\x3b\x80\x70\xc3\x85\x3a\x65\x2d\x30\xda\x91"
      "\xcb\x00\xe0\xaf\xa1\xc6\x63\x58\x91\x58\x71\x19\x84\xcf\xe3\x88\x69\x97"
      "\x4c\x30\xe9\xb5\x13\x33\x09\x1c\xb0\xf5\xd7\x2f\x5d\xdb\x0f\x3b\xc5\x50"
      "\xb2\x78\x7f\xf6\xfd\xfe\x0b\x90\x76\x4f\x8e\xc3\x19\xa2\x67\x4d\x6e\x16"
      "\xca\x24\x17\xb7\xa2\x14\x4b\x5a\x4a\xd2\x48\xfc\x4b\x2b\x8f\x74\xed\x19"
      "\x57\xbd\x4f\x52\xf0\xdb\x0a\xc4\xeb\x8f\x6d\xc6\x2c\x51\xe1\x6a\x80\x3b"
      "\xff\x50\x73\x59\xab\xdb\xd0\xce\x1e\xe0\xfb\x93\x6a\x4a\x06\x09\x54\xc1"
      "\xa9\x39\xb4\xb1\x97\xb6\x13\x11\xd0\x79\xef\x09\xe5\x7e\x60\xf9\x4f\xd7"
      "\x96\xc1\x2c\xf7\xe6\x2e\x11\xbb\xdc\x11\xe0\x4f\xc7\x97\x36\xe4\x2d\x6d"
      "\x2d\xcb\x02\xe7\x05\xdc\x4e\x8e\x17\xad\xdc\xc0\x90\x2a\xf4\xeb\xbf\x0a"
      "\x2f\x57\xdb\x53\xcb\xe9\x9b\xb0\x79\x71\x37\xc9\x03\x19\x5d\xe2\x82\xed"
      "\x02\xc3\x76\x34\x18\x19\x36\xe3\x51\xf3\x83\xfb\x59\x0e\xb4\x53\xe5\x39"
      "\xb8\x0c\x69\x35\x18\x5a\xc4\x08\x90\xc1\xba\x70\xb5\xe2\xeb\x53\x23\x5f"
      "\x3a\x98\x3c\xe4\x60\x89\x29\xd2\x60\x93\x54\xf8\x9f\xc2\x2f\x80\xa0\xaa"
      "\x9f\xc0\xea\x9a\xf7\xf0\x6e\x46\xd8\xb5\xf5\xd4\x7d\xbd\x2e\xfe\x1f\x2d"
      "\x0f\x4e\xde\xe0\x9f\x11\xb5\x7c\x25\x7f\xf5\xec\xfe\x96\xad\xa3\xc5\xf3"
      "\x7e\x1d\x76\x6c\x5c\x85\x49\x0d\x14\xf2\x97\xe1\xce\x65\xae\x34\x90\x9f"
      "\x04\x49\x2e\x7c\xc9\x55\xfa\xab\xb2\x05\x49\x1a\x09\x61\x47\xd0\x93\x0f"
      "\xfa\x70\xb6\x80\x55\x52\x3e\x36\x03\x28\xf2\x6f\x28\xff\x16\x0c\xdb\x8b"
      "\x47\x85\xa2\x21\x10\x19\x1c\x9e\xcf\xd1\x87\x26\x7c\x1a\x43\x00\xe9\x37"
      "\x0a\x41\xc7\x3f\xe2\x24\xf3\xa9\xc5\x44\x93\x78\x0b\x1a\x4f\xf9\x63\x98"
      "\xf0\xa6\x0f\x66\xe4\x8e\xf4\xad\x71\x83\xf7\x1c\x0c\x4d\x6d\x9d\x1a\x57"
      "\xe1\x9a\x56\xd9\xed\x42\x6c\xd4\x14\x3d\xe8\x2c\xeb\x33\x01\x19\x88\xed"
      "\x07\x9b\x52\xab\x30\x30\x02\x55\xe0\x66\xa8\x49\x59\xa1\x06\x76\xc7\xb5"
      "\x85\x15\xff\x9b\xed\x19\x4c\x78\x40\x72\xaf\x10\x62\x73\x4f\x5d\x49\x7f"
      "\x2b\xe9\xb0\xea\x12\x28\xf5\xa9\x81\xe8\xd5\xd7\x8d\xa4\x9d\xa9\x0b\x04"
      "\x0d\x4e\x3a\x93\xb7\xf7\x13\x60\xb2\x5c\xf7\x5f\xca\x36\xa4\x06\x87\x48"
      "\xe1\xbc\x17\x1d\xd4\x0f\xa3\x1d\x6f\x9c\x4c\x92\x6a\x63\x5f\x4e\xa4\xfa"
      "\xf7\x51\x11\x46\xbc\x57\x82\x60\x69\x66\xaa\xab\x13\xa3\x0d\x67\xcf\x18"
      "\x27\x51\x14\x9f\x67\x88\x52\xda\x30\xd0\xf9\xb6\xea\x55\x24\xa1\xf5\xea"
      "\x01\xe7\x7d\x7a\x74\xac\x58\x8a\xb2\x25\x1c\xdb\xc9\xf4\xf8\xaa\x2c\xf3"
      "\x67\xf0\xad\x21\x78\xe6\x6f\xbd\x7a\xb4\x47\xaa\xe1\x2a\x7b\xc6\xcf\x39"
      "\x25\xfe\x99\xdc\xdf\x8e\xc9\x5c\xf4\x57\x65\x20\xb7\x81\xdc\x12\xfe\x6d"
      "\x31\x09\x78\x31\x5d\x2e\x3d\x7d\xbc\x49\xc9\xbe\x2f\xa4\x07\x88\xeb\xd5"
      "\xfc\x02\xc6\xc7\xf5\x66\xa6\x4b\x7f\x4a\xf7\xa9\x63\x53\x26\x5d\xc9\xe4"
      "\xc7\x4c\x90\x9b\x9a\x38\x59\x66\xf4\xd7\x31\x2f\xdc\xdf\xa8\xf5\xd0\x63"
      "\x2c\x6d\xb4\xa1\x9c\xe6\x96\x41\x6a\x04\xe9\x37\xd4\xa9\x94\xe7\x57\xea"
      "\xe5\x9c\x07\xe5\xd3\x22\x82\x54\xb3\x50\x03\xeb\xa3\x2e\xd4\x48\x51\x6e"
      "\x9a\xa7\x7b\x5b\x92\xc9\xce\x7f\xff\x06\xa8\xf4\xf6\x52\xd2\x79\x71\xa4"
      "\x6c\x62\x1a\x6b\x2e\xe3\xc1\xad\xaf\x60\xd5\xcd\xfb\x38\x1a\x4e\x4a\xc9"
      "\xab\x7d\x7d\x72\xfc\xb2\xd6\xaa\x7e\x10\x42\x55\x34\x5f\x1e\x15\xde\xc8"
      "\x29\x9c\x9c\x75\x73\x5a\x01\x33\x8d\x20\xf7\x2d\x8b\x35\x98\x03\xbe\xce"
      "\xf7\x6d\x9c\xa6\xda\x02\x9d\x0a\x79\x5e\x6d\x4a\x65\x2b\xf3\x88\x0e\xfe"
      "\xee\x07\x4c\x81\x77\x4b\x29\x71\xda\x03\xef\xf6\xd9\x51\x6a\xc8\xa0\xc3"
      "\x4b\x68\x6a\xa1\xaf\xbc\xb2\xbe\xfc\x79\x61\x8a\x3d\xbb\x2b\xcd\x53\xda"
      "\x00\x75\xcd\xba\x0d\xdd\x97\x5f\xd4\xe8\x33\x29\x10\x05\xf0\xfb\xf7\xb1"
      "\x67\x92\x2d\xc8\x5b\x10\x9e\x13\x81\x43\x1e\x0f\xdc\x50\xf8\x0b\x85\x92"
      "\xed\xd5\x7f\x50\xf9\xdd\x95\x02\x05\xe1\xa2\x1c\xd3\x02\x6c\xb3\x0a\xbe"
      "\x6d\x06\xdb\xec\x6c\x7c\xdb\x76\xd9\x0c\x0e\x85\xa6\x9a\xa1\x52\x22\x81"
      "\xbc\xb3\xf4\xfc\x54\xee\x44\x3e\x76\xc7\xd9\xbf\x82\xe3\x13\xf2\xdc\x3e"
      "\x27\x7c\x69\x9e\x07\x9a\x84\x76\x35\x78\x0a\x5b\x72\x4a\xca\x0e\xde\x72"
      "\xfe\xbb\xa6\x48\xde\x12\xfd\x14\xe3\xa7\x8b\x29\xe9\xdf\x82\xa1\x9f\x4e"
      "\xd9\xc7\x12\xe5\xb3\x13\xc0\x5e\x69\x08\xf6\xd4\x60\x1d\x07\x6a\xfd\xa5"
      "\xcf\x77\xea\xb4\xea\x7c\x44\xc9\xd4\x0f\x46\x3f\xe8\xcd\xe7\x9f\x18\x17"
      "\x0d\xe9\xb0\x87\xb1\x13\xcf\xc7\xd4\x67\xbd\x16\x45\x64\xc2\xa8\xa9\x9e"
      "\x45\x66\xd6\xf9\xeb\x1a\x8d\x53\x93\x70\x01\x58\xfe\x84\xc1\x09\x73\x5c"
      "\xfe\x0a\xb4\x5d\x9e\xb6\xfe\x61\x61\x9d\x85\x38\x51\x27\x30\xe0\x15\xff"
      "\xac\x07\x27\x99\x73\x12\x6e\x90\x87\xb2\x09\x14\x4c\x87\x97\xdd\x6b\x65"
      "\x38\x1e\x61\x62\x56\xa9\xcb\xf7\x77\x12\x22\xc4\x16\x18\xeb\x82\xd3\x53"
      "\x9e\x77\x50\xef\x06\x14\xac\xb4\xc9\x01\xf8\x8f\x31\x58\x9d\x9d\x6d\x87"
      "\xc4\xb2\xa5\x36\x1a\xd4\x41\x55\xbf\x54\x76\xf2\xbc\x42\xcd\x2e\x75\x8d"
      "\x47\x8a\x1b\xca\xf2\x7c\x6c\x56\x07\xf0\x25\xc8\xff\x75\x91\x3c\xb9\x5e"
      "\xb6\x31\xa6\x90\xe3\xe6\x20\x12\x04\xe6\x16\xa4\x48\x2a\x6e\xae\x32\x3d"
      "\xad\xc0\xa9\xc2\x2a\x7d\xe1\x56\x7e\xc3\xf4\x53\x80\xbb\xde\x30\x4c\xc7"
      "\x6e\xfd\x4b\xb0\xac\x9f\x28\x47\x55\x34\xeb\x97\x3f\xc0\x2f\x3f\x5d\xc7"
      "\x3a\x86\x20\x52\xf8\x2f\x6d\x40\xc0\x82\x10\x12\x58\x99\x25\xce\x3f\x22"
      "\x74\xff\x2a\x80\x97\xb8\x46\x4b\x44\x06\x8c\x15\x05\xb9\x67\x67\x9b\xcc"
      "\x6b\x5d\x7e\x7e\xce\x9b\xd1\x88\x0f\xc3\x25\x31\xfe\x5d\x7b\xac\x9c\x52"
      "\x62\xa7\x09\x23\x9e\x47\x7e\xcf\x44\x91\x5a\x70\xaa\x7f\x98\x4e\xc1\xbe"
      "\xd0\x47\xf3\xec\x92\xa5\x57\x14\x40\x3c\x7c\x75\x03\xa3\xac\x87\xce\xc7"
      "\x92\xe0\x72\xee\xfa\x62\x3c\x56\xb6\xb3\x3b\xeb\x5a\xe7\xf5\x06\x6a\x95"
      "\x2c\xf6\xb0\xb2\x5a\xb7\x48\x41\xe5\xd2\xa9\xb2\x0b\x1f\xe0\xcd\x83\xc3"
      "\xaa\xe3\x7e\xac\x0d\xd0\x8d\x6a\x65\x41\x0a\xf9\x56\x76\x77\x66\xf2\xc6"
      "\xc1\x2d\x13\xe8\x7f\x36\x30\x52\xe1\xe6\x45\xc2\xdc\xcd\x42\x94\x8b\xe8"
      "\x35\xa9\xfe\x1c\x88\x92\x45\x3b\x73\xcb\xca\xa7\xc9\x22\x2c\xce\xce\x11"
      "\xf8\x6f\xba\x52\xd2\x9d\x64\xa6\x09\xda\x59\x7e\x22\x6e\x5f\x59\xe9\xa8"
      "\x30\x12\x97\xc1\xe9\x88\x15\x57\xa8\x60\xdf\x15\xee\x14\xcf\x4b\xf7\x09"
      "\x88\xe2\xcf\x90\x35\x95\x87\xbc\x37\x8a\xdb\xa5\xaa\x61\x0d\xb3\xcc\x1d"
      "\x6a\xe5\xfb\xa9\x39\x0b\x4c",
      3913);
  *(uint64_t*)0x20000148 = 0x1318;
  *(uint64_t*)0x20000150 = 0x20000840;
  memcpy((void*)0x20000840, "\000", 1);
  *(uint64_t*)0x20000158 = 0xff5e;
  *(uint64_t*)0x20000458 = 2;
  *(uint64_t*)0x20000460 = 0;
  *(uint64_t*)0x20000468 = 0;
  *(uint32_t*)0x20000470 = 0x1a0;
  syscall(__NR_sendmsg, r[0], 0x20000440ul, 0x34000ul);
}
int main(void)
{
  syscall(__NR_mmap, 0x1ffff000ul, 0x1000ul, 0ul, 0x32ul, -1, 0ul);
  syscall(__NR_mmap, 0x20000000ul, 0x1000000ul, 7ul, 0x32ul, -1, 0ul);
  syscall(__NR_mmap, 0x21000000ul, 0x1000ul, 0ul, 0x32ul, -1, 0ul);
  setup_sysctl();
  setup_binfmt_misc();
  setup_802154();
  do_sandbox_none();
  return 0;
}