// https://syzkaller.appspot.com/bug?id=0a16338c4573e63781a4605c5b0da7184982093f
// 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 <pthread.h>
#include <sched.h>
#include <setjmp.h>
#include <signal.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
#include <sys/mount.h>
#include <sys/prctl.h>
#include <sys/resource.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <sys/swap.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/falloc.h>
#include <linux/futex.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/loop.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>

#ifndef __NR_memfd_create
#define __NR_memfd_create 319
#endif

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 void use_temporary_dir(void)
{
  char tmpdir_template[] = "./syzkaller.XXXXXX";
  char* tmpdir = mkdtemp(tmpdir_template);
  if (!tmpdir)
    exit(1);
  if (chmod(tmpdir, 0777))
    exit(1);
  if (chdir(tmpdir))
    exit(1);
}

static void thread_start(void* (*fn)(void*), void* arg)
{
  pthread_t th;
  pthread_attr_t attr;
  pthread_attr_init(&attr);
  pthread_attr_setstacksize(&attr, 128 << 10);
  int i = 0;
  for (; i < 100; i++) {
    if (pthread_create(&th, &attr, fn, arg) == 0) {
      pthread_attr_destroy(&attr);
      return;
    }
    if (errno == EAGAIN) {
      usleep(50);
      continue;
    }
    break;
  }
  exit(1);
}

typedef struct {
  int state;
} event_t;

static void event_init(event_t* ev)
{
  ev->state = 0;
}

static void event_reset(event_t* ev)
{
  ev->state = 0;
}

static void event_set(event_t* ev)
{
  if (ev->state)
    exit(1);
  __atomic_store_n(&ev->state, 1, __ATOMIC_RELEASE);
  syscall(SYS_futex, &ev->state, FUTEX_WAKE | FUTEX_PRIVATE_FLAG, 1000000);
}

static void event_wait(event_t* ev)
{
  while (!__atomic_load_n(&ev->state, __ATOMIC_ACQUIRE))
    syscall(SYS_futex, &ev->state, FUTEX_WAIT | FUTEX_PRIVATE_FLAG, 0, 0);
}

static int event_isset(event_t* ev)
{
  return __atomic_load_n(&ev->state, __ATOMIC_ACQUIRE);
}

static int event_timedwait(event_t* ev, uint64_t timeout)
{
  uint64_t start = current_time_ms();
  uint64_t now = start;
  for (;;) {
    uint64_t remain = timeout - (now - start);
    struct timespec ts;
    ts.tv_sec = remain / 1000;
    ts.tv_nsec = (remain % 1000) * 1000 * 1000;
    syscall(SYS_futex, &ev->state, FUTEX_WAIT | FUTEX_PRIVATE_FLAG, 0, &ts);
    if (__atomic_load_n(&ev->state, __ATOMIC_ACQUIRE))
      return 1;
    now = current_time_ms();
    if (now - start > timeout)
      return 0;
  }
}

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, bool up)
{
  struct ifinfomsg hdr;
  memset(&hdr, 0, sizeof(hdr));
  if (up)
    hdr.ifi_flags = hdr.ifi_change = IFF_UP;
  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, false);
  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, false);
  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_xfrm(struct nlmsg* nlmsg, int sock, const char* name)
{
  netlink_add_device_impl(nlmsg, "xfrm", name, true);
  netlink_nest(nlmsg, IFLA_INFO_DATA);
  int if_id = 1;
  netlink_attr(nlmsg, 2, &if_id, sizeof(if_id));
  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, false);
  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, false);
  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, false);
  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, false);
  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, false);
  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, false);
  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 void netlink_add_neigh(struct nlmsg* nlmsg, int sock, const char* name,
                              const void* addr, int addrsize, const void* mac,
                              int macsize)
{
  struct ndmsg hdr;
  memset(&hdr, 0, sizeof(hdr));
  hdr.ndm_family = addrsize == 4 ? AF_INET : AF_INET6;
  hdr.ndm_ifindex = if_nametoindex(name);
  hdr.ndm_state = NUD_PERMANENT;
  netlink_init(nlmsg, RTM_NEWNEIGH, NLM_F_EXCL | NLM_F_CREATE, &hdr,
               sizeof(hdr));
  netlink_attr(nlmsg, NDA_DST, addr, addrsize);
  netlink_attr(nlmsg, NDA_LLADDR, mac, macsize);
  int err = netlink_send(nlmsg, sock);
  if (err < 0) {
  }
}

static struct nlmsg nlmsg;

static int tunfd = -1;

#define TUN_IFACE "syz_tun"
#define LOCAL_MAC 0xaaaaaaaaaaaa
#define REMOTE_MAC 0xaaaaaaaaaabb
#define LOCAL_IPV4 "172.20.20.170"
#define REMOTE_IPV4 "172.20.20.187"
#define LOCAL_IPV6 "fe80::aa"
#define REMOTE_IPV6 "fe80::bb"

#define IFF_NAPI 0x0010

static void initialize_tun(void)
{
  tunfd = open("/dev/net/tun", O_RDWR | O_NONBLOCK);
  if (tunfd == -1) {
    printf("tun: can't open /dev/net/tun: please enable CONFIG_TUN=y\n");
    printf("otherwise fuzzing or reproducing might not work as intended\n");
    return;
  }
  const int kTunFd = 200;
  if (dup2(tunfd, kTunFd) < 0)
    exit(1);
  close(tunfd);
  tunfd = kTunFd;
  struct ifreq ifr;
  memset(&ifr, 0, sizeof(ifr));
  strncpy(ifr.ifr_name, TUN_IFACE, IFNAMSIZ);
  ifr.ifr_flags = IFF_TAP | IFF_NO_PI;
  if (ioctl(tunfd, TUNSETIFF, (void*)&ifr) < 0) {
    exit(1);
  }
  char sysctl[64];
  sprintf(sysctl, "/proc/sys/net/ipv6/conf/%s/accept_dad", TUN_IFACE);
  write_file(sysctl, "0");
  sprintf(sysctl, "/proc/sys/net/ipv6/conf/%s/router_solicitations", TUN_IFACE);
  write_file(sysctl, "0");
  int sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
  if (sock == -1)
    exit(1);
  netlink_add_addr4(&nlmsg, sock, TUN_IFACE, LOCAL_IPV4);
  netlink_add_addr6(&nlmsg, sock, TUN_IFACE, LOCAL_IPV6);
  uint64_t macaddr = REMOTE_MAC;
  struct in_addr in_addr;
  inet_pton(AF_INET, REMOTE_IPV4, &in_addr);
  netlink_add_neigh(&nlmsg, sock, TUN_IFACE, &in_addr, sizeof(in_addr),
                    &macaddr, ETH_ALEN);
  struct in6_addr in6_addr;
  inet_pton(AF_INET6, REMOTE_IPV6, &in6_addr);
  netlink_add_neigh(&nlmsg, sock, TUN_IFACE, &in6_addr, sizeof(in6_addr),
                    &macaddr, ETH_ALEN);
  macaddr = LOCAL_MAC;
  netlink_device_change(&nlmsg, sock, TUN_IFACE, true, 0, &macaddr, ETH_ALEN,
                        NULL);
  close(sock);
}

#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);
}

static int runcmdline(char* cmdline)
{
  int ret = system(cmdline);
  if (ret) {
  }
  return ret;
}

#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)
{
  write_file("/sys/bus/netdevsim/del_device", "%u", addr);
  if (write_file("/sys/bus/netdevsim/new_device", "%u %u", addr, port_count)) {
    char buf[32];
    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"},         {"veth", 0},           {"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_add_xfrm(&nlmsg, sock, "xfrm0");
  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 int read_tun(char* data, int size)
{
  if (tunfd < 0)
    return -1;
  int rv = read(tunfd, data, size);
  if (rv < 0) {
    if (errno == EAGAIN || errno == EBADFD)
      return -1;
    exit(1);
  }
  return rv;
}

static void flush_tun()
{
  char data[1000];
  while (read_tun(&data[0], sizeof(data)) != -1) {
  }
}

#define MAX_FDS 30

//% This code is derived from puff.{c,h}, found in the zlib development. The
//% original files come with the following copyright notice:

//% Copyright (C) 2002-2013 Mark Adler, all rights reserved
//% version 2.3, 21 Jan 2013
//% This software is provided 'as-is', without any express or implied
//% warranty.  In no event will the author be held liable for any damages
//% arising from the use of this software.
//% Permission is granted to anyone to use this software for any purpose,
//% including commercial applications, and to alter it and redistribute it
//% freely, subject to the following restrictions:
//% 1. The origin of this software must not be misrepresented; you must not
//%    claim that you wrote the original software. If you use this software
//%    in a product, an acknowledgment in the product documentation would be
//%    appreciated but is not required.
//% 2. Altered source versions must be plainly marked as such, and must not be
//%    misrepresented as being the original software.
//% 3. This notice may not be removed or altered from any source distribution.
//% Mark Adler    madler@alumni.caltech.edu

//% BEGIN CODE DERIVED FROM puff.{c,h}

#define MAXBITS 15
#define MAXLCODES 286
#define MAXDCODES 30
#define MAXCODES (MAXLCODES + MAXDCODES)
#define FIXLCODES 288

struct puff_state {
  unsigned char* out;
  unsigned long outlen;
  unsigned long outcnt;
  const unsigned char* in;
  unsigned long inlen;
  unsigned long incnt;
  int bitbuf;
  int bitcnt;
  jmp_buf env;
};
static int puff_bits(struct puff_state* s, int need)
{
  long val = s->bitbuf;
  while (s->bitcnt < need) {
    if (s->incnt == s->inlen)
      longjmp(s->env, 1);
    val |= (long)(s->in[s->incnt++]) << s->bitcnt;
    s->bitcnt += 8;
  }
  s->bitbuf = (int)(val >> need);
  s->bitcnt -= need;
  return (int)(val & ((1L << need) - 1));
}
static int puff_stored(struct puff_state* s)
{
  s->bitbuf = 0;
  s->bitcnt = 0;
  if (s->incnt + 4 > s->inlen)
    return 2;
  unsigned len = s->in[s->incnt++];
  len |= s->in[s->incnt++] << 8;
  if (s->in[s->incnt++] != (~len & 0xff) ||
      s->in[s->incnt++] != ((~len >> 8) & 0xff))
    return -2;
  if (s->incnt + len > s->inlen)
    return 2;
  if (s->outcnt + len > s->outlen)
    return 1;
  for (; len--; s->outcnt++, s->incnt++) {
    if (s->in[s->incnt])
      s->out[s->outcnt] = s->in[s->incnt];
  }
  return 0;
}
struct puff_huffman {
  short* count;
  short* symbol;
};
static int puff_decode(struct puff_state* s, const struct puff_huffman* h)
{
  int first = 0;
  int index = 0;
  int bitbuf = s->bitbuf;
  int left = s->bitcnt;
  int code = first = index = 0;
  int len = 1;
  short* next = h->count + 1;
  while (1) {
    while (left--) {
      code |= bitbuf & 1;
      bitbuf >>= 1;
      int count = *next++;
      if (code - count < first) {
        s->bitbuf = bitbuf;
        s->bitcnt = (s->bitcnt - len) & 7;
        return h->symbol[index + (code - first)];
      }
      index += count;
      first += count;
      first <<= 1;
      code <<= 1;
      len++;
    }
    left = (MAXBITS + 1) - len;
    if (left == 0)
      break;
    if (s->incnt == s->inlen)
      longjmp(s->env, 1);
    bitbuf = s->in[s->incnt++];
    if (left > 8)
      left = 8;
  }
  return -10;
}
static int puff_construct(struct puff_huffman* h, const short* length, int n)
{
  int len;
  for (len = 0; len <= MAXBITS; len++)
    h->count[len] = 0;
  int symbol;
  for (symbol = 0; symbol < n; symbol++)
    (h->count[length[symbol]])++;
  if (h->count[0] == n)
    return 0;
  int left = 1;
  for (len = 1; len <= MAXBITS; len++) {
    left <<= 1;
    left -= h->count[len];
    if (left < 0)
      return left;
  }
  short offs[MAXBITS + 1];
  offs[1] = 0;
  for (len = 1; len < MAXBITS; len++)
    offs[len + 1] = offs[len] + h->count[len];
  for (symbol = 0; symbol < n; symbol++)
    if (length[symbol] != 0)
      h->symbol[offs[length[symbol]]++] = symbol;
  return left;
}
static int puff_codes(struct puff_state* s, const struct puff_huffman* lencode,
                      const struct puff_huffman* distcode)
{
  static const short lens[29] = {3,  4,  5,  6,   7,   8,   9,   10,  11, 13,
                                 15, 17, 19, 23,  27,  31,  35,  43,  51, 59,
                                 67, 83, 99, 115, 131, 163, 195, 227, 258};
  static const short lext[29] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2,
                                 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 0};
  static const short dists[30] = {
      1,    2,    3,    4,    5,    7,    9,    13,    17,    25,
      33,   49,   65,   97,   129,  193,  257,  385,   513,   769,
      1025, 1537, 2049, 3073, 4097, 6145, 8193, 12289, 16385, 24577};
  static const short dext[30] = {0, 0, 0,  0,  1,  1,  2,  2,  3,  3,
                                 4, 4, 5,  5,  6,  6,  7,  7,  8,  8,
                                 9, 9, 10, 10, 11, 11, 12, 12, 13, 13};
  int symbol;
  do {
    symbol = puff_decode(s, lencode);
    if (symbol < 0)
      return symbol;
    if (symbol < 256) {
      if (s->outcnt == s->outlen)
        return 1;
      if (symbol)
        s->out[s->outcnt] = symbol;
      s->outcnt++;
    } else if (symbol > 256) {
      symbol -= 257;
      if (symbol >= 29)
        return -10;
      int len = lens[symbol] + puff_bits(s, lext[symbol]);
      symbol = puff_decode(s, distcode);
      if (symbol < 0)
        return symbol;
      unsigned dist = dists[symbol] + puff_bits(s, dext[symbol]);
      if (dist > s->outcnt)
        return -11;
      if (s->outcnt + len > s->outlen)
        return 1;
      while (len--) {
        if (dist <= s->outcnt && s->out[s->outcnt - dist])
          s->out[s->outcnt] = s->out[s->outcnt - dist];
        s->outcnt++;
      }
    }
  } while (symbol != 256);
  return 0;
}
static int puff_fixed(struct puff_state* s)
{
  static int virgin = 1;
  static short lencnt[MAXBITS + 1], lensym[FIXLCODES];
  static short distcnt[MAXBITS + 1], distsym[MAXDCODES];
  static struct puff_huffman lencode, distcode;
  if (virgin) {
    lencode.count = lencnt;
    lencode.symbol = lensym;
    distcode.count = distcnt;
    distcode.symbol = distsym;
    short lengths[FIXLCODES];
    int symbol;
    for (symbol = 0; symbol < 144; symbol++)
      lengths[symbol] = 8;
    for (; symbol < 256; symbol++)
      lengths[symbol] = 9;
    for (; symbol < 280; symbol++)
      lengths[symbol] = 7;
    for (; symbol < FIXLCODES; symbol++)
      lengths[symbol] = 8;
    puff_construct(&lencode, lengths, FIXLCODES);
    for (symbol = 0; symbol < MAXDCODES; symbol++)
      lengths[symbol] = 5;
    puff_construct(&distcode, lengths, MAXDCODES);
    virgin = 0;
  }
  return puff_codes(s, &lencode, &distcode);
}
static int puff_dynamic(struct puff_state* s)
{
  static const short order[19] = {16, 17, 18, 0, 8,  7, 9,  6, 10, 5,
                                  11, 4,  12, 3, 13, 2, 14, 1, 15};
  int nlen = puff_bits(s, 5) + 257;
  int ndist = puff_bits(s, 5) + 1;
  int ncode = puff_bits(s, 4) + 4;
  if (nlen > MAXLCODES || ndist > MAXDCODES)
    return -3;
  short lengths[MAXCODES];
  int index;
  for (index = 0; index < ncode; index++)
    lengths[order[index]] = puff_bits(s, 3);
  for (; index < 19; index++)
    lengths[order[index]] = 0;
  short lencnt[MAXBITS + 1], lensym[MAXLCODES];
  struct puff_huffman lencode = {lencnt, lensym};
  int err = puff_construct(&lencode, lengths, 19);
  if (err != 0)
    return -4;
  index = 0;
  while (index < nlen + ndist) {
    int symbol;
    int len;
    symbol = puff_decode(s, &lencode);
    if (symbol < 0)
      return symbol;
    if (symbol < 16)
      lengths[index++] = symbol;
    else {
      len = 0;
      if (symbol == 16) {
        if (index == 0)
          return -5;
        len = lengths[index - 1];
        symbol = 3 + puff_bits(s, 2);
      } else if (symbol == 17)
        symbol = 3 + puff_bits(s, 3);
      else
        symbol = 11 + puff_bits(s, 7);
      if (index + symbol > nlen + ndist)
        return -6;
      while (symbol--)
        lengths[index++] = len;
    }
  }
  if (lengths[256] == 0)
    return -9;
  err = puff_construct(&lencode, lengths, nlen);
  if (err && (err < 0 || nlen != lencode.count[0] + lencode.count[1]))
    return -7;
  short distcnt[MAXBITS + 1], distsym[MAXDCODES];
  struct puff_huffman distcode = {distcnt, distsym};
  err = puff_construct(&distcode, lengths + nlen, ndist);
  if (err && (err < 0 || ndist != distcode.count[0] + distcode.count[1]))
    return -8;
  return puff_codes(s, &lencode, &distcode);
}
static int puff(unsigned char* dest, unsigned long* destlen,
                const unsigned char* source, unsigned long sourcelen)
{
  struct puff_state s = {
      .out = dest,
      .outlen = *destlen,
      .outcnt = 0,
      .in = source,
      .inlen = sourcelen,
      .incnt = 0,
      .bitbuf = 0,
      .bitcnt = 0,
  };
  int err;
  if (setjmp(s.env) != 0)
    err = 2;
  else {
    int last;
    do {
      last = puff_bits(&s, 1);
      int type = puff_bits(&s, 2);
      err = type == 0 ? puff_stored(&s)
                      : (type == 1 ? puff_fixed(&s)
                                   : (type == 2 ? puff_dynamic(&s) : -1));
      if (err != 0)
        break;
    } while (!last);
  }
  *destlen = s.outcnt;
  return err;
}

//% END CODE DERIVED FROM puff.{c,h}

#define ZLIB_HEADER_WIDTH 2

static int puff_zlib_to_file(const unsigned char* source,
                             unsigned long sourcelen, int dest_fd)
{
  if (sourcelen < ZLIB_HEADER_WIDTH)
    return 0;
  source += ZLIB_HEADER_WIDTH;
  sourcelen -= ZLIB_HEADER_WIDTH;
  const unsigned long max_destlen = 132 << 20;
  void* ret = mmap(0, max_destlen, PROT_WRITE | PROT_READ,
                   MAP_PRIVATE | MAP_ANON, -1, 0);
  if (ret == MAP_FAILED)
    return -1;
  unsigned char* dest = (unsigned char*)ret;
  unsigned long destlen = max_destlen;
  int err = puff(dest, &destlen, source, sourcelen);
  if (err) {
    munmap(dest, max_destlen);
    errno = -err;
    return -1;
  }
  if (write(dest_fd, dest, destlen) != (ssize_t)destlen) {
    munmap(dest, max_destlen);
    return -1;
  }
  return munmap(dest, destlen);
}

static int setup_loop_device(unsigned char* data, unsigned long size,
                             const char* loopname, int* loopfd_p)
{
  int err = 0, loopfd = -1;
  int memfd = syscall(__NR_memfd_create, "syzkaller", 0);
  if (memfd == -1) {
    err = errno;
    goto error;
  }
  if (puff_zlib_to_file(data, size, memfd)) {
    err = errno;
    goto error_close_memfd;
  }
  loopfd = open(loopname, O_RDWR);
  if (loopfd == -1) {
    err = errno;
    goto error_close_memfd;
  }
  if (ioctl(loopfd, LOOP_SET_FD, memfd)) {
    if (errno != EBUSY) {
      err = errno;
      goto error_close_loop;
    }
    ioctl(loopfd, LOOP_CLR_FD, 0);
    usleep(1000);
    if (ioctl(loopfd, LOOP_SET_FD, memfd)) {
      err = errno;
      goto error_close_loop;
    }
  }
  close(memfd);
  *loopfd_p = loopfd;
  return 0;

error_close_loop:
  close(loopfd);
error_close_memfd:
  close(memfd);
error:
  errno = err;
  return -1;
}

static long syz_mount_image(volatile long fsarg, volatile long dir,
                            volatile long flags, volatile long optsarg,
                            volatile long change_dir,
                            volatile unsigned long size, volatile long image)
{
  unsigned char* data = (unsigned char*)image;
  int res = -1, err = 0, loopfd = -1, need_loop_device = !!size;
  char* mount_opts = (char*)optsarg;
  char* target = (char*)dir;
  char* fs = (char*)fsarg;
  char* source = NULL;
  char loopname[64];
  if (need_loop_device) {
    memset(loopname, 0, sizeof(loopname));
    snprintf(loopname, sizeof(loopname), "/dev/loop%llu", procid);
    if (setup_loop_device(data, size, loopname, &loopfd) == -1)
      return -1;
    source = loopname;
  }
  mkdir(target, 0777);
  char opts[256];
  memset(opts, 0, sizeof(opts));
  if (strlen(mount_opts) > (sizeof(opts) - 32)) {
  }
  strncpy(opts, mount_opts, sizeof(opts) - 32);
  if (strcmp(fs, "iso9660") == 0) {
    flags |= MS_RDONLY;
  } else if (strncmp(fs, "ext", 3) == 0) {
    bool has_remount_ro = false;
    char* remount_ro_start = strstr(opts, "errors=remount-ro");
    if (remount_ro_start != NULL) {
      char after = *(remount_ro_start + strlen("errors=remount-ro"));
      char before = remount_ro_start == opts ? '\0' : *(remount_ro_start - 1);
      has_remount_ro = ((before == '\0' || before == ',') &&
                        (after == '\0' || after == ','));
    }
    if (strstr(opts, "errors=panic") || !has_remount_ro)
      strcat(opts, ",errors=continue");
  } else if (strcmp(fs, "xfs") == 0) {
    strcat(opts, ",nouuid");
  }
  res = mount(source, target, fs, flags, opts);
  if (res == -1) {
    err = errno;
    goto error_clear_loop;
  }
  res = open(target, O_RDONLY | O_DIRECTORY);
  if (res == -1) {
    err = errno;
    goto error_clear_loop;
  }
  if (change_dir) {
    res = chdir(target);
    if (res == -1) {
      err = errno;
    }
  }

error_clear_loop:
  if (need_loop_device) {
    ioctl(loopfd, LOOP_CLR_FD, 0);
    close(loopfd);
  }
  errno = err;
  return res;
}

#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;
  uint64_t entrytable[XT_TABLE_SIZE / sizeof(uint64_t)];
};

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;
  uint64_t entrytable[XT_TABLE_SIZE / sizeof(uint64_t)];
};

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;
  uint64_t entrytable[XT_TABLE_SIZE / sizeof(uint64_t)];
};

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;
  uint64_t entrytable[XT_TABLE_SIZE / sizeof(uint64_t)];
};

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)
{
  int fd = socket(family, SOCK_STREAM, IPPROTO_TCP);
  if (fd == -1) {
    switch (errno) {
    case EAFNOSUPPORT:
    case ENOPROTOOPT:
      return;
    }
    exit(1);
  }
  for (int 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);
    socklen_t 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);
    struct ipt_get_entries entries;
    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)
{
  int fd = socket(family, SOCK_STREAM, IPPROTO_TCP);
  if (fd == -1) {
    switch (errno) {
    case EAFNOSUPPORT:
    case ENOPROTOOPT:
      return;
    }
    exit(1);
  }
  for (int i = 0; i < num_tables; i++) {
    struct ipt_table_desc* table = &tables[i];
    if (table->info.valid_hooks == 0)
      continue;
    struct ipt_getinfo info;
    memset(&info, 0, sizeof(info));
    strcpy(info.name, table->name);
    socklen_t optlen = sizeof(info);
    if (getsockopt(fd, level, IPT_SO_GET_INFO, &info, &optlen))
      exit(1);
    if (memcmp(&table->info, &info, sizeof(table->info)) == 0) {
      struct ipt_get_entries entries;
      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;
    }
    struct xt_counters counters[XT_MAX_ENTRIES];
    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)
{
  int fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
  if (fd == -1) {
    switch (errno) {
    case EAFNOSUPPORT:
    case ENOPROTOOPT:
      return;
    }
    exit(1);
  }
  for (unsigned 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);
    socklen_t 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);
    struct arpt_get_entries entries;
    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()
{
  int fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
  if (fd == -1) {
    switch (errno) {
    case EAFNOSUPPORT:
    case ENOPROTOOPT:
      return;
    }
    exit(1);
  }
  for (unsigned 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;
    struct arpt_getinfo info;
    memset(&info, 0, sizeof(info));
    strcpy(info.name, table->name);
    socklen_t 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) {
      struct arpt_get_entries entries;
      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 {
    }
    struct xt_counters counters[XT_MAX_ENTRIES];
    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)
{
  int fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
  if (fd == -1) {
    switch (errno) {
    case EAFNOSUPPORT:
    case ENOPROTOOPT:
      return;
    }
    exit(1);
  }
  for (size_t 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);
    socklen_t 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()
{
  int fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
  if (fd == -1) {
    switch (errno) {
    case EAFNOSUPPORT:
    case ENOPROTOOPT:
      return;
    }
    exit(1);
  }
  for (unsigned 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;
    struct ebt_replace replace;
    memset(&replace, 0, sizeof(replace));
    strcpy(replace.name, table->name);
    socklen_t 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 (unsigned h = 0; h < NF_BR_NUMHOOKS; h++)
      table->replace.hook_entry[h] = 0;
    if (memcmp(&table->replace, &replace, sizeof(table->replace)) == 0) {
      char entrytable[XT_TABLE_SIZE];
      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 (unsigned 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 mount_cgroups(const char* dir, const char** controllers, int count)
{
  if (mkdir(dir, 0777)) {
    return;
  }
  char enabled[128] = {0};
  int i = 0;
  for (; i < count; i++) {
    if (mount("none", dir, "cgroup", 0, controllers[i])) {
      continue;
    }
    umount(dir);
    strcat(enabled, ",");
    strcat(enabled, controllers[i]);
  }
  if (enabled[0] == 0) {
    if (rmdir(dir) && errno != EBUSY)
      exit(1);
    return;
  }
  if (mount("none", dir, "cgroup", 0, enabled + 1)) {
    if (rmdir(dir) && errno != EBUSY)
      exit(1);
  }
  if (chmod(dir, 0777)) {
  }
}

static void mount_cgroups2(const char** controllers, int count)
{
  if (mkdir("/syzcgroup/unified", 0777)) {
    return;
  }
  if (mount("none", "/syzcgroup/unified", "cgroup2", 0, NULL)) {
    if (rmdir("/syzcgroup/unified") && errno != EBUSY)
      exit(1);
    return;
  }
  if (chmod("/syzcgroup/unified", 0777)) {
  }
  int control = open("/syzcgroup/unified/cgroup.subtree_control", O_WRONLY);
  if (control == -1)
    return;
  int i;
  for (i = 0; i < count; i++)
    if (write(control, controllers[i], strlen(controllers[i])) < 0) {
    }
  close(control);
}

static void setup_cgroups()
{
  const char* unified_controllers[] = {"+cpu", "+io", "+pids"};
  const char* net_controllers[] = {"net", "net_prio", "devices", "blkio",
                                   "freezer"};
  const char* cpu_controllers[] = {"cpuset", "cpuacct", "hugetlb", "rlimit",
                                   "memory"};
  if (mkdir("/syzcgroup", 0777)) {
    return;
  }
  mount_cgroups2(unified_controllers,
                 sizeof(unified_controllers) / sizeof(unified_controllers[0]));
  mount_cgroups("/syzcgroup/net", net_controllers,
                sizeof(net_controllers) / sizeof(net_controllers[0]));
  mount_cgroups("/syzcgroup/cpu", cpu_controllers,
                sizeof(cpu_controllers) / sizeof(cpu_controllers[0]));
  write_file("/syzcgroup/cpu/cgroup.clone_children", "1");
  write_file("/syzcgroup/cpu/cpuset.memory_pressure_enabled", "1");
}

static void setup_cgroups_loop()
{
  int pid = getpid();
  char file[128];
  char cgroupdir[64];
  snprintf(cgroupdir, sizeof(cgroupdir), "/syzcgroup/unified/syz%llu", procid);
  if (mkdir(cgroupdir, 0777)) {
  }
  snprintf(file, sizeof(file), "%s/pids.max", cgroupdir);
  write_file(file, "32");
  snprintf(file, sizeof(file), "%s/cgroup.procs", cgroupdir);
  write_file(file, "%d", pid);
  snprintf(cgroupdir, sizeof(cgroupdir), "/syzcgroup/cpu/syz%llu", procid);
  if (mkdir(cgroupdir, 0777)) {
  }
  snprintf(file, sizeof(file), "%s/cgroup.procs", cgroupdir);
  write_file(file, "%d", pid);
  snprintf(file, sizeof(file), "%s/memory.soft_limit_in_bytes", cgroupdir);
  write_file(file, "%d", 299 << 20);
  snprintf(file, sizeof(file), "%s/memory.limit_in_bytes", cgroupdir);
  write_file(file, "%d", 300 << 20);
  snprintf(cgroupdir, sizeof(cgroupdir), "/syzcgroup/net/syz%llu", procid);
  if (mkdir(cgroupdir, 0777)) {
  }
  snprintf(file, sizeof(file), "%s/cgroup.procs", cgroupdir);
  write_file(file, "%d", pid);
}

static void setup_cgroups_test()
{
  char cgroupdir[64];
  snprintf(cgroupdir, sizeof(cgroupdir), "/syzcgroup/unified/syz%llu", procid);
  if (symlink(cgroupdir, "./cgroup")) {
  }
  snprintf(cgroupdir, sizeof(cgroupdir), "/syzcgroup/cpu/syz%llu", procid);
  if (symlink(cgroupdir, "./cgroup.cpu")) {
  }
  snprintf(cgroupdir, sizeof(cgroupdir), "/syzcgroup/net/syz%llu", procid);
  if (symlink(cgroupdir, "./cgroup.net")) {
  }
}

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

static void setup_binderfs()
{
  if (mkdir("/dev/binderfs", 0777)) {
  }
  if (mount("binder", "/dev/binderfs", "binder", 0, NULL)) {
  }
}

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 = 128 << 20;
  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)) {
  }
  write_file("/proc/sys/net/ipv4/ping_group_range", "0 65535");
  initialize_tun();
  initialize_netdevices();
  setup_binderfs();
  loop();
  exit(1);
}

#define FS_IOC_SETFLAGS _IOW('f', 2, long)
static void remove_dir(const char* dir)
{
  int iter = 0;
  DIR* dp = 0;
retry:
  while (umount2(dir, MNT_DETACH | UMOUNT_NOFOLLOW) == 0) {
  }
  dp = opendir(dir);
  if (dp == NULL) {
    if (errno == EMFILE) {
      exit(1);
    }
    exit(1);
  }
  struct dirent* ep = 0;
  while ((ep = readdir(dp))) {
    if (strcmp(ep->d_name, ".") == 0 || strcmp(ep->d_name, "..") == 0)
      continue;
    char filename[FILENAME_MAX];
    snprintf(filename, sizeof(filename), "%s/%s", dir, ep->d_name);
    while (umount2(filename, MNT_DETACH | UMOUNT_NOFOLLOW) == 0) {
    }
    struct stat st;
    if (lstat(filename, &st))
      exit(1);
    if (S_ISDIR(st.st_mode)) {
      remove_dir(filename);
      continue;
    }
    int i;
    for (i = 0;; i++) {
      if (unlink(filename) == 0)
        break;
      if (errno == EPERM) {
        int fd = open(filename, O_RDONLY);
        if (fd != -1) {
          long flags = 0;
          if (ioctl(fd, FS_IOC_SETFLAGS, &flags) == 0) {
          }
          close(fd);
          continue;
        }
      }
      if (errno == EROFS) {
        break;
      }
      if (errno != EBUSY || i > 100)
        exit(1);
      if (umount2(filename, MNT_DETACH | UMOUNT_NOFOLLOW))
        exit(1);
    }
  }
  closedir(dp);
  for (int i = 0;; i++) {
    if (rmdir(dir) == 0)
      break;
    if (i < 100) {
      if (errno == EPERM) {
        int fd = open(dir, O_RDONLY);
        if (fd != -1) {
          long flags = 0;
          if (ioctl(fd, FS_IOC_SETFLAGS, &flags) == 0) {
          }
          close(fd);
          continue;
        }
      }
      if (errno == EROFS) {
        break;
      }
      if (errno == EBUSY) {
        if (umount2(dir, MNT_DETACH | UMOUNT_NOFOLLOW))
          exit(1);
        continue;
      }
      if (errno == ENOTEMPTY) {
        if (iter < 100) {
          iter++;
          goto retry;
        }
      }
    }
    exit(1);
  }
}

static void kill_and_wait(int pid, int* status)
{
  kill(-pid, SIGKILL);
  kill(pid, SIGKILL);
  for (int 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()
{
  setup_cgroups_loop();
  checkpoint_net_namespace();
}

static void reset_loop()
{
  char buf[64];
  snprintf(buf, sizeof(buf), "/dev/loop%llu", procid);
  int loopfd = open(buf, O_RDWR);
  if (loopfd != -1) {
    ioctl(loopfd, LOOP_CLR_FD, 0);
    close(loopfd);
  }
  reset_net_namespace();
}

static void setup_test()
{
  prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0);
  setpgrp();
  setup_cgroups_test();
  write_file("/proc/self/oom_score_adj", "1000");
  flush_tun();
  if (symlink("/dev/binderfs", "./binderfs")) {
  }
}

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

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()
{
  char mypid[32];
  snprintf(mypid, sizeof(mypid), "%d", getpid());
  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/kernel/keys/gc_delay", "1"},
      {"/proc/sys/vm/oom_kill_allocating_task", "1"},
      {"/proc/sys/kernel/ctrl-alt-del", "0"},
      {"/proc/sys/kernel/cad_pid", mypid},
  };
  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 FUSE_MIN_READ_BUFFER 8192
enum fuse_opcode {
  FUSE_LOOKUP = 1,
  FUSE_FORGET = 2,
  FUSE_GETATTR = 3,
  FUSE_SETATTR = 4,
  FUSE_READLINK = 5,
  FUSE_SYMLINK = 6,
  FUSE_MKNOD = 8,
  FUSE_MKDIR = 9,
  FUSE_UNLINK = 10,
  FUSE_RMDIR = 11,
  FUSE_RENAME = 12,
  FUSE_LINK = 13,
  FUSE_OPEN = 14,
  FUSE_READ = 15,
  FUSE_WRITE = 16,
  FUSE_STATFS = 17,
  FUSE_RELEASE = 18,
  FUSE_FSYNC = 20,
  FUSE_SETXATTR = 21,
  FUSE_GETXATTR = 22,
  FUSE_LISTXATTR = 23,
  FUSE_REMOVEXATTR = 24,
  FUSE_FLUSH = 25,
  FUSE_INIT = 26,
  FUSE_OPENDIR = 27,
  FUSE_READDIR = 28,
  FUSE_RELEASEDIR = 29,
  FUSE_FSYNCDIR = 30,
  FUSE_GETLK = 31,
  FUSE_SETLK = 32,
  FUSE_SETLKW = 33,
  FUSE_ACCESS = 34,
  FUSE_CREATE = 35,
  FUSE_INTERRUPT = 36,
  FUSE_BMAP = 37,
  FUSE_DESTROY = 38,
  FUSE_IOCTL = 39,
  FUSE_POLL = 40,
  FUSE_NOTIFY_REPLY = 41,
  FUSE_BATCH_FORGET = 42,
  FUSE_FALLOCATE = 43,
  FUSE_READDIRPLUS = 44,
  FUSE_RENAME2 = 45,
  FUSE_LSEEK = 46,
  FUSE_COPY_FILE_RANGE = 47,
  FUSE_SETUPMAPPING = 48,
  FUSE_REMOVEMAPPING = 49,
  CUSE_INIT = 4096,
  CUSE_INIT_BSWAP_RESERVED = 1048576,
  FUSE_INIT_BSWAP_RESERVED = 436207616,
};
struct fuse_in_header {
  uint32_t len;
  uint32_t opcode;
  uint64_t unique;
  uint64_t nodeid;
  uint32_t uid;
  uint32_t gid;
  uint32_t pid;
  uint32_t padding;
};
struct fuse_out_header {
  uint32_t len;
  uint32_t error;
  uint64_t unique;
};
struct syz_fuse_req_out {
  struct fuse_out_header* init;
  struct fuse_out_header* lseek;
  struct fuse_out_header* bmap;
  struct fuse_out_header* poll;
  struct fuse_out_header* getxattr;
  struct fuse_out_header* lk;
  struct fuse_out_header* statfs;
  struct fuse_out_header* write;
  struct fuse_out_header* read;
  struct fuse_out_header* open;
  struct fuse_out_header* attr;
  struct fuse_out_header* entry;
  struct fuse_out_header* dirent;
  struct fuse_out_header* direntplus;
  struct fuse_out_header* create_open;
  struct fuse_out_header* ioctl;
};
static int fuse_send_response(int fd, const struct fuse_in_header* in_hdr,
                              struct fuse_out_header* out_hdr)
{
  if (!out_hdr) {
    return -1;
  }
  out_hdr->unique = in_hdr->unique;
  if (write(fd, out_hdr, out_hdr->len) == -1) {
    return -1;
  }
  return 0;
}
static volatile long syz_fuse_handle_req(volatile long a0, volatile long a1,
                                         volatile long a2, volatile long a3)
{
  struct syz_fuse_req_out* req_out = (struct syz_fuse_req_out*)a3;
  struct fuse_out_header* out_hdr = NULL;
  char* buf = (char*)a1;
  int buf_len = (int)a2;
  int fd = (int)a0;
  if (!req_out) {
    return -1;
  }
  if (buf_len < FUSE_MIN_READ_BUFFER) {
    return -1;
  }
  int ret = read(fd, buf, buf_len);
  if (ret == -1) {
    return -1;
  }
  if ((size_t)ret < sizeof(struct fuse_in_header)) {
    return -1;
  }
  const struct fuse_in_header* in_hdr = (const struct fuse_in_header*)buf;
  if (in_hdr->len > (uint32_t)ret) {
    return -1;
  }
  switch (in_hdr->opcode) {
  case FUSE_GETATTR:
  case FUSE_SETATTR:
    out_hdr = req_out->attr;
    break;
  case FUSE_LOOKUP:
  case FUSE_SYMLINK:
  case FUSE_LINK:
  case FUSE_MKNOD:
  case FUSE_MKDIR:
    out_hdr = req_out->entry;
    break;
  case FUSE_OPEN:
  case FUSE_OPENDIR:
    out_hdr = req_out->open;
    break;
  case FUSE_STATFS:
    out_hdr = req_out->statfs;
    break;
  case FUSE_RMDIR:
  case FUSE_RENAME:
  case FUSE_RENAME2:
  case FUSE_FALLOCATE:
  case FUSE_SETXATTR:
  case FUSE_REMOVEXATTR:
  case FUSE_FSYNCDIR:
  case FUSE_FSYNC:
  case FUSE_SETLKW:
  case FUSE_SETLK:
  case FUSE_ACCESS:
  case FUSE_FLUSH:
  case FUSE_RELEASE:
  case FUSE_RELEASEDIR:
  case FUSE_UNLINK:
  case FUSE_DESTROY:
    out_hdr = req_out->init;
    if (!out_hdr) {
      return -1;
    }
    out_hdr->len = sizeof(struct fuse_out_header);
    break;
  case FUSE_READ:
    out_hdr = req_out->read;
    break;
  case FUSE_READDIR:
    out_hdr = req_out->dirent;
    break;
  case FUSE_READDIRPLUS:
    out_hdr = req_out->direntplus;
    break;
  case FUSE_INIT:
    out_hdr = req_out->init;
    break;
  case FUSE_LSEEK:
    out_hdr = req_out->lseek;
    break;
  case FUSE_GETLK:
    out_hdr = req_out->lk;
    break;
  case FUSE_BMAP:
    out_hdr = req_out->bmap;
    break;
  case FUSE_POLL:
    out_hdr = req_out->poll;
    break;
  case FUSE_GETXATTR:
  case FUSE_LISTXATTR:
    out_hdr = req_out->getxattr;
    break;
  case FUSE_WRITE:
  case FUSE_COPY_FILE_RANGE:
    out_hdr = req_out->write;
    break;
  case FUSE_FORGET:
  case FUSE_BATCH_FORGET:
    return 0;
  case FUSE_CREATE:
    out_hdr = req_out->create_open;
    break;
  case FUSE_IOCTL:
    out_hdr = req_out->ioctl;
    break;
  default:
    return -1;
  }
  return fuse_send_response(fd, in_hdr, out_hdr);
}

#define SWAP_FILE "./swap-file"
#define SWAP_FILE_SIZE (128 * 1000 * 1000)

static void setup_swap()
{
  swapoff(SWAP_FILE);
  unlink(SWAP_FILE);
  int fd = open(SWAP_FILE, O_CREAT | O_WRONLY | O_CLOEXEC, 0600);
  if (fd == -1) {
    exit(1);
    return;
  }
  fallocate(fd, FALLOC_FL_ZERO_RANGE, 0, SWAP_FILE_SIZE);
  close(fd);
  char cmdline[64];
  sprintf(cmdline, "mkswap %s", SWAP_FILE);
  if (runcmdline(cmdline)) {
    exit(1);
    return;
  }
  if (swapon(SWAP_FILE, SWAP_FLAG_PREFER) == 1) {
    exit(1);
    return;
  }
}

struct thread_t {
  int created, call;
  event_t ready, done;
};

static struct thread_t threads[16];
static void execute_call(int call);
static int running;

static void* thr(void* arg)
{
  struct thread_t* th = (struct thread_t*)arg;
  for (;;) {
    event_wait(&th->ready);
    event_reset(&th->ready);
    execute_call(th->call);
    __atomic_fetch_sub(&running, 1, __ATOMIC_RELAXED);
    event_set(&th->done);
  }
  return 0;
}

static void execute_one(void)
{
  int i, call, thread;
  for (call = 0; call < 6; call++) {
    for (thread = 0; thread < (int)(sizeof(threads) / sizeof(threads[0]));
         thread++) {
      struct thread_t* th = &threads[thread];
      if (!th->created) {
        th->created = 1;
        event_init(&th->ready);
        event_init(&th->done);
        event_set(&th->done);
        thread_start(thr, th);
      }
      if (!event_isset(&th->done))
        continue;
      event_reset(&th->done);
      th->call = call;
      __atomic_fetch_add(&running, 1, __ATOMIC_RELAXED);
      event_set(&th->ready);
      event_timedwait(&th->done, 50);
      break;
    }
  }
  for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++)
    sleep_ms(1);
  close_fds();
}

static void execute_one(void);

#define WAIT_FLAGS __WALL

static void loop(void)
{
  setup_loop();
  int iter = 0;
  for (;; iter++) {
    char cwdbuf[32];
    sprintf(cwdbuf, "./%d", iter);
    if (mkdir(cwdbuf, 0777))
      exit(1);
    reset_loop();
    int pid = fork();
    if (pid < 0)
      exit(1);
    if (pid == 0) {
      if (chdir(cwdbuf))
        exit(1);
      setup_test();
      execute_one();
      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 < 5000)
        continue;
      kill_and_wait(pid, &status);
      break;
    }
    remove_dir(cwdbuf);
  }
}

uint64_t r[4] = {0xffffffffffffffff, 0x0, 0x0, 0x0};

void execute_call(int call)
{
  intptr_t res = 0;
  switch (call) {
  case 0:
    memcpy((void*)0x20000440, "/dev/fuse\000", 10);
    res = syscall(__NR_openat, /*fd=*/0xffffffffffffff9cul,
                  /*file=*/0x20000440ul, /*flags=*/2ul, /*mode=*/0ul);
    if (res != -1)
      r[0] = res;
    break;
  case 1:
    memcpy((void*)0x20000240, "fuse\000", 5);
    memcpy((void*)0x20000400, "./file0\000", 8);
    memcpy((void*)0x20002740, "fd", 2);
    *(uint8_t*)0x20002742 = 0x3d;
    sprintf((char*)0x20002743, "0x%016llx", (long long)r[0]);
    *(uint8_t*)0x20002755 = 0x2c;
    memcpy((void*)0x20002756, "rootmode", 8);
    *(uint8_t*)0x2000275e = 0x3d;
    sprintf((char*)0x2000275f, "%023llo", (long long)0x4000);
    *(uint8_t*)0x20002776 = 0x2c;
    memcpy((void*)0x20002777, "user_id", 7);
    *(uint8_t*)0x2000277e = 0x3d;
    sprintf((char*)0x2000277f, "%020llu", (long long)0);
    *(uint8_t*)0x20002793 = 0x2c;
    memcpy((void*)0x20002794, "group_id", 8);
    *(uint8_t*)0x2000279c = 0x3d;
    sprintf((char*)0x2000279d, "%020llu", (long long)0);
    *(uint8_t*)0x200027b1 = 0x2c;
    *(uint8_t*)0x200027b2 = 0;
    syz_mount_image(/*fs=*/0x20000240, /*dir=*/0x20000400, /*flags=*/0,
                    /*opts=*/0x20002740, /*chdir=*/0, /*size=*/0, /*img=*/0);
    break;
  case 2:
    res =
        syscall(__NR_read, /*fd=*/r[0], /*buf=*/0x200027c0ul, /*len=*/0x2020ul);
    if (res != -1) {
      r[1] = *(uint64_t*)0x200027c8;
      r[2] = *(uint32_t*)0x200027d0;
      r[3] = *(uint32_t*)0x200027d4;
    }
    break;
  case 3:
    memcpy(
        (void*)0x20004800,
        "\x69\x1e\x4b\x19\x8a\x6a\x24\x9f\x31\xea\xed\x11\xe2\x17\xec\x2c\x06"
        "\xe0\x75\xcf\x70\x2f\xdd\x65\xc7\x4b\x75\x1c\x8a\xa8\x91\x9d\xb8\x50"
        "\xcf\x0c\x01\x53\x17\x40\x1e\x02\xb1\xa0\x55\xa7\xe2\xc8\xf0\xce\xc4"
        "\x70\x70\x02\x5d\x89\xf2\x83\x8f\x78\x09\xe2\x8e\xf8\x8c\x4e\xfe\x26"
        "\x92\x5f\x0e\xd6\x55\xb3\x2b\x35\x04\x0a\x41\xcf\x8a\x8a\xf3\x82\x69"
        "\x1f\xfb\xd0\xaf\xe7\x46\xb0\xf6\x4f\xb0\xd6\xc0\x5e\x14\xa9\x9e\x11"
        "\x0b\xd9\xca\x78\x17\x70\x07\xd8\xdc\x15\x37\x90\x16\xd7\x62\x10\x5f"
        "\x0e\xe7\xd8\x61\x0a\x6a\x67\xce\x8f\x05\xf4\xca\xa1\x81\x9e\x37\x23"
        "\x68\x2f\x49\xc7\x86\x3b\xda\xf0\xee\xbd\x8e\x31\x9a\xcb\x03\xa3\xf1"
        "\xea\x3e\xa0\xf3\xf6\x26\x79\x40\x9c\xac\xb1\x03\x43\x70\x0d\xe9\x64"
        "\x97\xe6\xee\x68\x6a\x9d\xc2\xbb\x2f\x8a\x61\x36\xae\xcb\xb7\x58\x23"
        "\xc1\x5f\x4c\x8a\x83\xd7\xd3\xfc\x12\xd1\xc6\x56\x9a\x71\x07\x58\x5a"
        "\xb5\x6c\xed\x9d\x0c\x56\x5e\x2d\xf9\x7d\xcc\x2a\xda\xcd\x15\xd3\x9e"
        "\x62\xc6\xf2\x40\xdf\x01\x1e\xd1\xf2\x55\x98\x67\x7c\x05\x7b\xd7\xd3"
        "\x50\x20\xb1\xe5\x7d\xdc\x80\x10\xe9\x33\xf3\xbf\xdb\x1a\x15\xf1\x5d"
        "\x00\x76\x1f\x89\x26\x7b\x83\xd6\x59\x92\x64\x85\xfc\x8e\xe5\xd2\x3b"
        "\x2d\xdc\x09\x66\x02\xe1\x17\xc4\x8b\xc6\x11\x26\x05\x90\x66\x21\xc5"
        "\xf9\x8d\x23\x3f\xb5\x76\xab\xec\xd0\xe7\x0a\xfc\x8b\x6f\xd2\xa4\x38"
        "\xb0\x4e\xb2\xae\x82\x42\xae\x60\x9c\xed\x14\x40\xe9\xb5\xc5\x9e\x2e"
        "\x32\xf8\x85\x22\x2f\x7a\x3d\x85\x8d\xa8\x6a\x4d\x6c\x28\x37\xc9\xe1"
        "\xe2\x5c\xea\xea\x47\xc0\x14\x10\xd3\xb7\x8b\x89\xcc\xe5\xd6\xb1\xbf"
        "\xb0\x0f\x40\xa9\x91\x0c\xe5\x4b\x15\xa8\x67\xb6\xf3\x7a\xf3\x6c\x94"
        "\xc4\xb3\x84\xb7\x3d\x6c\x5e\xf3\xce\xf8\x25\x20\x6e\xef\x16\x1f\xa0"
        "\x67\xb8\x1e\xca\xdd\xad\xff\x81\x41\xb2\x7b\x9c\xc2\x0f\x2d\x44\x98"
        "\x9b\x3a\x86\x7e\x5b\x42\xea\x8d\x98\xb7\xbd\xf1\xb0\x1e\x59\xe0\xe5"
        "\x54\x95\x97\xaf\xbe\x93\xa4\xbd\x83\xdb\x89\x0c\x58\x86\x85\x55\x31"
        "\xe2\xdf\xdc\xaa\xab\x9f\x58\x2d\x97\x88\x1a\xfa\xe1\x97\x31\xac\xaa"
        "\x33\x57\x37\x10\xa2\xe9\x7d\xad\x25\x1c\x3a\x9c\x75\xa2\x50\x4d\xf8"
        "\x5a\x98\x44\x52\xb8\xff\x81\x9a\x28\x38\x04\xa5\xfc\xac\x4d\x25\x87"
        "\xfc\x30\x73\xfa\xa7\x82\x11\xcd\x05\x7d\x4f\xda\x93\x0f\xae\xc1\x2d"
        "\x9d\x1f\xf3\x3b\xaa\xc9\xae\xe9\xc3\x19\x5f\x74\xa1\xe1\x93\xdc\xe4"
        "\xb9\xec\x5e\xe4\x7a\x61\xce\x95\x93\xbf\xcd\x9f\x52\xf1\x2d\x21\xe1"
        "\xdd\xc6\xe8\xef\xee\xef\xc7\x40\xec\x71\xd1\xe0\xa0\xdb\x5e\x60\x66"
        "\x0b\x5a\x68\x9b\xf2\xa3\x3f\x0f\xd8\x2d\x47\x95\x76\xa1\x06\xa6\x3b"
        "\x94\x98\xe7\x99\x17\xd4\xda\xcc\xea\xb0\x7d\xe1\x16\x98\x2e\xb3\x7c"
        "\xa2\x05\x95\xff\x62\x14\xa4\x18\x32\x8c\xba\x04\xb6\x8b\x74\x50\x54"
        "\x4c\x06\xfc\x1b\xd5\x35\xd2\xf6\x27\xc0\xe3\x91\x69\x41\xb5\x46\xe0"
        "\x9c\x15\xd6\x8c\x1e\xae\x97\x8d\xdd\xb2\x61\xb8\x86\xff\x7c\x47\x84"
        "\xd5\xe2\xb6\x35\x58\x93\x13\x40\xbc\xbf\xc7\xea\x90\xde\xf1\x74\xa8"
        "\x92\xea\x47\x97\xd4\xc0\x3b\xf8\x0e\x8f\xb1\xa2\x2e\x21\x1d\x04\x9a"
        "\x4b\xc6\x70\x8a\x89\x9c\x12\x74\x17\x8b\x39\x27\x10\xac\xee\x09\xc7"
        "\x2b\x04\x8b\xe6\x60\x95\x54\x02\xd1\x2d\x7a\x9a\x17\x32\x51\xfe\x6c"
        "\xa1\xe9\xb8\xb9\xc0\xe3\x30\x6f\x05\xfa\x98\x7a\x09\xc9\x70\x93\xb6"
        "\x15\x9b\x26\xc7\x15\x97\xb3\x1f\x2f\xc3\x53\x5d\x04\xa4\xeb\x18\xd4"
        "\x33\x35\x88\x32\x10\x46\x31\x1b\x65\x2c\xdb\xf6\x8f\x3a\x4c\x40\x1c"
        "\xae\x75\x71\x0f\xa7\x59\x86\x55\x3d\x12\x66\xb3\x72\x7a\xfe\x17\x2c"
        "\xca\x5f\xda\x22\xc5\x0c\x00\x5c\xb5\x7b\x71\x82\x35\x00\x2d\x1d\x60"
        "\xbb\x8c\xe8\x70\xb5\x40\xb8\x68\x07\x9b\x17\x27\x54\xbf\xdf\xcb\x2e"
        "\x37\x3c\xf3\xe2\x6c\xba\x1a\xa1\x0d\x02\x45\x6f\x43\x67\xce\x9e\x40"
        "\x68\x29\x2c\x5b\xf0\x8b\x0b\xbc\x14\x53\x04\x1b\xe6\x96\x53\xeb\x23"
        "\x17\x15\xa9\xd0\xcd\x0b\x93\xb6\xe7\x00\xa2\xdb\xe1\x8c\xb7\xb8\xd9"
        "\xf8\x26\xdc\xef\x92\xc7\x9a\xa0\xa6\x18\x5e\xf6\x32\x93\x94\xda\x52"
        "\x36\x63\xca\x88\xe2\xe6\x5b\xd8\x87\x8e\xe1\xa9\x8b\xf6\x65\xf4\xfb"
        "\x57\x48\x01\xa7\x74\x29\xab\x23\xfd\xb0\x57\x9a\x68\xd5\xb1\x2a\xca"
        "\xc7\x84\x42\x53\x23\x6c\xd4\xfc\xf5\x81\x5d\xf6\x1c\x89\x64\x13\xa3"
        "\x22\xcf\x6f\xd4\x40\x3e\x0d\xa7\x21\x45\x58\x93\x85\x8b\x0c\x08\x4b"
        "\x5b\x60\xd7\x43\x41\x14\x25\xde\x59\xee\x3d\xf9\xd7\x1f\xed\x97\x9b"
        "\xd4\x10\x50\xa0\x8f\xc7\x4c\x47\x7d\xc5\x99\x0f\x5e\xcb\xb6\x08\x3b"
        "\xd8\xff\xdd\x87\xb1\xe6\x03\x9e\x5f\x1b\x19\x39\xe2\xc1\xe7\x3b\x70"
        "\x63\x15\x1c\x67\x7a\x91\x33\x75\x2e\x5d\x08\xeb\xf9\x3f\x2a\x69\x73"
        "\x16\x1d\xc3\x20\xea\xce\x38\xe2\x39\xbf\x0c\xc0\x4a\x24\xd1\xfc\xff"
        "\xaf\x52\x32\xf4\xeb\x30\x65\xdf\xdc\xc3\x68\x97\x95\x51\x57\xa9\xc3"
        "\xcc\x23\x8c\x72\xab\xe0\x06\xe1\xf4\xe6\x27\x1c\xb6\x8d\x38\x3e\xc0"
        "\x49\x38\x3a\x0e\x8c\xef\xdd\x2d\x0a\x57\xe9\x10\x82\xec\x03\x32\x83"
        "\x2e\xb9\xd7\x1c\x1a\x71\x5f\x16\x4d\x5a\x28\xcd\x6c\x73\xda\xc8\x46"
        "\xc2\x79\xf7\x31\xd8\x3f\x66\x9f\xcb\xc3\x15\x32\xb8\x06\x8a\x8e\x96"
        "\xec\xc5\xff\x6d\xe9\x2c\x80\x34\x97\x7a\xdd\x86\x94\xcd\xea\x9b\x33"
        "\x3a\xc6\xbb\x70\xae\x5f\x66\xed\x92\xd4\x3a\x3f\xd3\xf8\x7c\x84\xc9"
        "\x42\xfd\xa3\xb7\xfa\xb3\xc7\xfc\xb3\xe5\xee\x48\xb4\xe6\x5f\x00\xe7"
        "\x9f\x97\x57\xd9\xd4\xbc\xbf\x21\xc4\x03\x56\x92\x2e\x01\xbc\x4b\x42"
        "\x9f\xa1\x50\x2d\x03\xa1\x4e\xea\x94\x24\x35\xda\x98\x22\x1e\x63\x76"
        "\xb7\xc6\xe7\xa2\x61\xfa\x43\xc4\x32\x95\x95\xac\xdf\x8b\x88\x27\xde"
        "\x80\x2d\x57\xfe\x03\x25\xa6\x8f\x20\x0f\x34\x1e\x95\xed\xf6\x7a\xb6"
        "\x49\x6b\x9e\x2d\x53\xf1\x7f\xd2\x47\xf9\x0d\x1d\xe5\x41\x81\xec\x61"
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        "\xc3\x03\xbf\x3d\x29\xf1\xf4\xeb\xaa\xbc\x51\x43\x94\x6e\x9a\xb9\x88"
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        "\x89\x77\xab\xc5\xc9\xe0\xe8\x24\xcb\x4a\x56\x9e\x53\xee\x1b\xc6\xab"
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        "\x9c\x7b\xb9\x04\xb6\xf9\x5f\x56\x64\x99\x92\x76\x03\xa2\xb5\x57\x14"
        "\x8f\x5d\x56\x4e\xe6\x35\x9e\x72\x77\x79\x80\x67\x64\x32\x6d\xe1\xd6"
        "\x41\x37\x1d\xb4\x3d\x0e\xd1\x4b\x57\xf2\x15\xeb\xc5\x43\x8a\xf0\x07"
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        "\x8f\x62\x17\x64\xb5\xbc\x15\x9c\x95\x5a\xf3\x0e\xba\x90\x5c\x4e\xa3"
        "\xff\x6f\xb5\x89\x79\x2b\xfc\x11\xa5\xe2\x7e\xba\x8e\xd1\x24\xd7\xfc"
        "\x36\x7d\x04\x9a\xed\x10\x0c\x3a\xc4\x34\xb3\x88\x06\x1b\x06\x69\x9a"
        "\x10\xbd\x69\x62\x0b\x1a\x96\x84\x64\x2d\x5e\x97\xe6\xa8\xcc\xc2\x51"
        "\x84\xcb\x3d\xeb\xf2\x33\xe3\x87\x3f\x0e\x8a\xbe\xfd\x1b\x2e\xac\x7f"
        "\x9d\xae\xc6\x31\x75\xf1\xb7\x7b\xdb\xd8\xc5\x03\x99\x1d\xd8\xcb\x36"
        "\x72\x2b\xe1\x3e\xaf\xb0\x29\xe2\x84\xbb\x28\x79\x48\xfa\xcd\x6e\x71"
        "\xcf\x4b\x51\x7c\x59\x28\x88\xe0\xc6\xbf\xa0\x71\xb5\x77\xc1\x64\x48"
        "\xaa\xe9\x62\x48\x41\xe7\xee\xe2\x2b\x82\xb4\xc9\xee\x1a\xe7\x5f\x32"
        "\x5f\x90\xa1\x75\xa8\xd3\x33\x04\x3e\x42\x10\xce\xa1\x0a\x2e\x48\xde"
        "\x13\x14\x63\xab\xe5\x89\xe3\x45\x62\xab\xab\xfa\xb1\xe2\xda\x57\x2e"
        "\x63\xe8\x83\x5f\xf7\xa5\x8c\xb2\xb0\x95\x2f\x5c\x96\x9a\xc0\xff\xe0"
        "\x01\xe4\xb4\xca\x8c\x47\xc5\x1b\xdd\x53\x69\x4c\xb4\x95\xa8\xb7\x57"
        "\x8a\x5a\xbd\xf9\x90\x97\x0b\x03\x56\xca\x9c\x86\xea\xfe\x0f\x8b\xdf"
        "\x09\x4d\x9e\xf1\x4d\xe8\x15\xee\x84\x3b\x23\xb5\x95\xb6\x2b\x80\xf7"
        "\x98\x39\x06\x8d\xfd\x92\x11\xc0\x52\xeb\x12\x5b\x4b\x2e\x19\xd8\xdd"
        "\x76\xab\x31\xa8\x48\xa8\xd1\x82\x3a\x7a\x71\x5c\x85\x43\xfa\x91\x05"
        "\x4b\xe8\x79\x12\xa0\x6c\x1a\x46\x09\x44\xe9\x60\x29\x7c\xe7\x22\x85"
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        "\x8d\xcf\x13\xf7\x14\xf4\xc0\x52\xb4\x9d\x5e\x60\x0c\xda\xce\x72\x5e"
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        "\x35\xd3\xb9\x2a\x82\xed\xc0\xf9\xb3\x7e\xd6\x7f\x63\xb4\x34\xb0\x2a"
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        "\xae\x2b\x08\x5f\xae\x0c\x24\xf2\x34\xb7\x23\x3f\x80\xd8\xad\xbd\x2a"
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        "\x9c\xea\xae\xdd\x70\x9a\xc5\x2c\x5f\x51\xda\x61\x0c\xed\x4d\x9d\x4b"
        "\x8f\xfe\x36\xa0\x04\x4c\x39\x69\x6d\x92\x31\xca\x4f\x6a\xbf\x60\xba"
        "\xe8\xcd\x61\xc7\xb8\x77\x8d\x52\x6f\x13\xef\xc8\xe9\xf2\x80\xbd\xa9"
        "\x9c\xe2\xf0\xf8\x32\x10\x1a\x18\x9a\x80\xed\x31\x5e\xf3\xca\x71\x65"
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        "\xa8\x60\x23\x15\x0b\x5c\xfa\xd6\x6b\xed\x73\xa6\x9d\x4d\x0b\x9e\x05"
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        "\x5d\x32\xd4\x0b\x1d\x08\x77\xaf\x7c\x92\xd3\x3c\x7e\x30\xf2\x74\x37"
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        "\x1c\x3e\x8f\x86\xc3\x43\xb5\x9a\x4c\x3b\x15\x16\x5b\x95\xf8\xc6\xfe"
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        "\xaf\xa9\x20\x16\x64\x17\xd8\x99\x2c\x3d\x85\x4d\x4c\x4a\xd8\xca\xa8"
        "\x99\x6f\x8b\x62\x29\x6d\x9e\xf2\x0e\x13\x77\xde\xf5\x3a\x66\x6c\x64"
        "\x01\xc6\x49\x61\x64\x5e\xb2\xd1\xb0\xa3\x0e\x70\xc2\x98\xe8\x5f\x6b"
        "\x68\x49\xde\xb6\xbb\xec\x63\xba\x7a\x57\xb4\x6a\x1b\xc9\x9e\x4f\x30"
        "\xc5\xc1\x8a\x92\x4e\xad\x98\x20\x3b\xd7\x28\x29\xfd\x19\x60\x1d\x9f"
        "\x3c\x0c\xaf\xf4\x46\xe4\xeb\xa6\xd7\x60\x72\x96\x0d\x97\x77\x59\xd9"
        "\xec\xb6\x1f\xe4\x7f\x36\x78\xc0\x7d\xf5\xc6\x26\xc5\x58\x3d\xb2\x5f"
        "\xd5\xbc\xa2\xb2\x55\xf1\x19\x35\xc0\xef\xae\x83\x5c\xcf\x48\x81\xa1"
        "\x9d\x21\xf1\x4a\x4a\xd6\x69\x1a\xf0\x9e\x0e\x60\xd6\x6a\xa5\x97\x0c"
        "\x3e\x87\xd0\x7a\x71\xa8\x91\x1a\xba\x19\x6b\xbe\x32\x27\x04\x9a\x88"
        "\xfb\xe3\xa1\x19\x25\x90\xe3\xe4\xee\x1f\x1e\x8a\x13\xcb\xd4\xe8\x8d"
        "\xab\x20\xa1\x00\x85\xee\x59\xf6\x95\x48\x6d\x17\x02\x32\xf8\x16\x81"
        "\x87\x27\x76\xd3\x51\x14\x07\x4e\xaa\x33\x10\x2f\x98\xd9\xe2\x95\xc9"
        "\x3d\x2c\x91\xa8\x6b\x90\x70\x56\x10\xdc\x9d\x6c\x31\x13\xf0\x75\x2e"
        "\x7c\xdd\x38\x43\x04\x99\xc2\x19\x4e\x80\xec\x3f\x0b\x44\x38\xd3\xf7"
        "\x58\xef\x91\x92\x3d\x45\x7e\xdb\x69\x15\x05\x79\xa7\x84\x27\xde\x65"
        "\x81\xd3\x9b\x55\xce\x87\x56\x59\x71\xda\xfa\xb0\xd3\x8d\xa6\x80\xfc"
        "\x5a\x31\xfb\x11\x50\x0c\x53\x04\x68\xf4\x6c\x57\x7b\xdf\xe8\x43\xdd"
        "\xfe\xc7\xf3\xa8\xb2\x3e\xc0\xbe\xbe\xfe\x40\x5a\x00\xc1\xce\x88\x64"
        "\xb7\xa2\xb3\x4c\x48\xed\xb6\xb3\x25\x3a\xb8\x6e\x53\xe9\x2b\x65\x08"
        "\xa8\x52\x14\xfa\xa6\x3d\x75\x81\x12\xbc\x94\xd1\xc5\xdf\x09\x58\x4f"
        "\xaf\x56\x25\x49\x75\x34\x15\x49\x9a\xa1\xd1\xd7\x41\x3f\x47\x95\x30"
        "\x8f\x16\x06\xd8\x63\x89\xa1\x98\x86\x61\x17\xfc\xcf\x26\x7b\x52\xbd"
        "\xbb\xd0\x93\x0d\x9f\xc8\x98\xb6\x83\xcc\x8e\xb4\xab\x07\x9d\x0e\x8b"
        "\x4e\x8a\xfc\x2d\xf1\xf2\xa2\x3e\xca\xf8\x2d\x31\x74\x62\x3f\xaf\x32"
        "\x57\x8e\x10\xc3\x52\xf3\xb0\x46\x20\x7b\xc2\x99\x9c\x29\x2c\x56\x9c"
        "\x85\x99\x80\x47\xb9\x85\xd1\x4a\x17\xda\xc9\x26\xe7\x45\x9f\xe0\x06"
        "\x96\x23\xcf\x1e\x92\x58\x2a\xd8\x26\x88\xbd\xa4\x5b\x83\x18\x16\xfd"
        "\xfa\x87\x22\x71\xb7\xeb\xb5\x8e\x1e\x50\x80\x8a\x82\x1b\xc5\xc1\x6c"
        "\x3e\x5b\x7b\x3b\x3d\xf9\x4c\x4e\x6c\x48\xaa\x93\xd7\xb4\xec\x84\xcd"
        "\x93\xa8\x46\xdd\x80\x77\x92\xe8\xdd\xaa\x3b\x48\xcb\x51\xcc\x3a\x3a"
        "\x39\x53\x0c\x56\x7f\x37\xfd\x61\x85\x45\xaf\x78\x11\xf6\xae\x3f\x69"
        "\xa6\x94\x5c\x14\x31\x6f\x73\x44\xc8\xa5\xec\xbb\x56\x86\x37\x8f\xf3"
        "\xd0\x39\xd9\x40\x84\x65\x08\x93\x3b\xb3\xa0\xfb\x73\xba\x6f\x6f\x06"
        "\x20\xb4\x62\x3f\xe4\xc7\x55\x1b\x54\xb7\xc4\x3f\x25\x97\x77\x26\x50"
        "\xc8\x5c\xa1\xd7\x1c\x44\xe6\x0f\xd2\xa3\xf1\x2d\x1d\xfc\x09\x41\xc9"
        "\x1f\x81\xec\x41\x38\x2c\x8b\xc1\xcc\xea\x86\x3d\x6b\x35\x6b\x6c\x81"
        "\xbd\x4e\x49\x33\x5d\xec\x13\x0a\x83\x00\x0e\x36\xd8\x08\x89\xa8\xf9"
        "\x8e\x41\xe8\xb6\x7c\x71\xf9\x64\x30\x6e\xc1\x83\x64\x19\x05\x32\x0e"
        "\xa9\x1f\x8b\x0e\x65\x54\x32\xb4\x7f\x21\x1c\xbe\x7a\x6d\x92\x30\x5c"
        "\x38\xe6\xaa\x38\x04\x19\x1b\x9f\x57\x2a\x16\xcc\x6d\x81\x11\x33\xf6"
        "\x16\x43\x35\xe7\x23\xc5\x8a\xbe\xdd\x97\xd4\x9c\x86\x52\x49\x10\xd6"
        "\xd3\xfe\x59\xfe\x3d\x80\xac\x96\xa3\x54\x8c\x29\xfc\xa4\xe7\x51\x35"
        "\xf7\xaf\x58\x90\x0d\x41\xdb\x87\xa8\x6f\x09\x5f\x41\x7c\x74\x62\x61"
        "\xd4\x64\xa1\x12\x10\xc5\x4b\x8c\xf9\xc3\xe7\x8d\xc8\x09\xec\x40\x32"
        "\x15\xcf\x76\x36\x54\xa8\xb8\x7f\x76\x71\xe3\x33\x8e\xbb\x56\x06\xaa"
        "\x5d\x77\x8d\x34\xfc\x9f\x01\xa6\xb4\xb2\x93\xc8\xf3\xeb\xf2\xcc\xbf"
        "\x29\x93\x49\xa1\x9f\xec\x4e\x00\x93\x7d\x5c\x30\xff\x39\x6c\x82\x91"
        "\x7d\xae\xe3\x07\x47\x42\x9f\x0b\x1e\xab\x3a\xb5\xf8\x82\x18\xdf\xfb"
        "\x83\x40\x90\xea\x1c\x22\xd2\x39\xa6\x2b\x29\xce\x78\x50\xf2\xb3\x74"
        "\xa0\xe3\xce\xb1\xc0\xd0\x07\x61\x60\x8c\x8b\xbc\x97\x15\x29\x09\x63"
        "\x95\x46\x38\x0b\xec\x21\xbe\x8d\x93\xf9\x81\x57\xaf\xf1\x97\x5e\x10"
        "\x51\x76\xda\x5d\x1b\x33\xdd\x5f\x4f\x72\x6a\x83\x97\x9c\x30\x7c\xbc"
        "\x8d\x10\x52\xb1\x28\xc9\x43\x8e\xea\x6c\x44\xeb\x34\xa0\xfb\x31\x5a"
        "\x38\x4e\x00\xa6\xb5\xbd\xcb\xfa\x25\xff\xf6\x25\x3b\x06\xcc\x51\x7b"
        "\xfb\x60\xd2\xb0\x48\x1e\xc2\x85\x9d\xab\x87\x24\x67\xcd\x82\x8c\xd7"
        "\x9a\xad\x67\xbd\xf4\x99\xeb\xe0\x7f\x61\x82\x66\x7c\xc4\xa6\x5b\xa8"
        "\x2a\x2c\x8c\xcf\x88\xf5\x9c\xcb\xfd\x24\x2c\x04\x2b\x9c\x58\x22\x73"
        "\x5f\x75\x97\xdf\x5f\x54\x7c\x7b\xbc\x1f\xa7\x4a\xe5\xcc\x38\xf5\xf1"
        "\xfe\x90\x65\xdc\x5c\x9b\xf6\x87\x8f\x45\x7e\x95\xad\xcc\x79\xa1\x54"
        "\x53\x76\xa2\x6b\x0b\x3e\xf7\xc0\xee\x38\x72\x19\xe5\x57\x1a\xaf\x92"
        "\x25\xc6\x15\x97\xb2\x17\x42\x54\xa9\xa2\xc7\x80\xb9\x28\x3c\x9d\xc0"
        "\x2f\x2e\xc2\xa4\x0f\xc6\xc6\xe9\xeb\x53\x92\x99\x5f\x16\xbb\x11\x5f"
        "\x18\x54\x6b\x70\x29\x5c\x91\xa9\x83\xab\x93\x59\x2b\x86\x5b\xde\x39"
        "\x7c\x33\x3d\x01\x57\xc8\xcc\x21\x27\xe4\x6c\xa7\xf3\x54\xfe\x53\x1c"
        "\xf5\xd0\x8f\xfd\x32\xc7\xb6\xa9\xee\x93\xb0\xf6\x62\x20\x97\xd0\x34"
        "\xeb\x33\xcc\xac\x5b\xfc\x18\xd2\xb2\x2c\xc7\xc5\xf6\xea\x21\x7f\x89"
        "\x9b\x92\xa8\xbd\x51\x9b\x99\xd0\x84\x41\x39\xeb\xfe\x44\x4d\xac\x90"
        "\x80\xc4\xbb\xa3\x03\x08\xee\x34\xe5\x86\x02\x5e\x53\xd1\x75\x70\x01"
        "\x22\x96\xa3\x8d\x65\xc8\xc4\xb6\x48\x5a\xdb\x4b\x0c\xe9\x02\x3b\x16"
        "\x22\x8d\x6a\x54\x5e\x7a\xfc\xf1\x91\x9c\x26\x46\xed\x97\xa8\xa3\x6d"
        "\xbf\xe1\x70\xa4\x53\x3a\x4c\xe0\x82\xa7\xed\x50\x43\xe8\xb9\xc3\xc5"
        "\x03\x25\x6f\x33\xa7\x7b\xd6\x56\x15\xeb\xcd\x04\x23\xca\x0d\xda\xb8"
        "\x94\x3d\x37\x10\xd0\x96\x2b\x75\xd4\x86\xcc\x26\x93\x6d\x84\x0f\x9e"
        "\xe5\x59\xd9\xc7\x4e\x21\xd8\xe1\x94\xc1\x51\xb5\xf4\x04\x57\x47\x5a"
        "\x45\x30\x44\xe5\xfd\x79\x5a\x70\xf5\x21\x75\xda\xce\x94\x77\xb1\xa5"
        "\x6d\x6e\x16\xfa\x95\x21\x0a\x64\x41\x00\x6b\x69\x2f\x28\x8c\x01\xd3"
        "\x58\xaf\x84\xf2\x2e\x86\xb3\xc8\xa7\xf2\xb3\x9e\x54\xb7\x82\x3a\xda"
        "\x40\xdb\xc5\x66\xf9\x9b\xf0\xc2\x8e\xd2\xa4\xc8\x91\x0e\x6f\x4b\x1e"
        "\xa0\xf4\xdc\x13\xe0\x33\xbb\xd2\x26\xf7\x0d\xf4\x2d\x8f\x27\x6e\xef"
        "\xff\xc7\xc0\x36\xc5\x3f\x56\x95\x2b\x13\x24\x9f\xbc\xc3\xcb\x35\xa7"
        "\xc5\xad\x4f\x06\x6e\x16\xfa\x44\x65\x44\x9a\x5a\x54\xda\xae\xcc\xcd"
        "\xd3\xed\xd9\x80\x5e\xef\xc5\x0c\xbe\xa5\xf9\x87\xef\x89\x34\xc3\x1e"
        "\x75\xea\x93\x3b\x3b\xad\xcc\x98\x09\xf1\xc3\xca\x69\xac\x27\x55\xf4"
        "\xd2\x1f\xd0\xd9\x4e\x3d\xbe\xe7\xb7\xfe\x66\xfd\xe1\x94\x61\x60\x8d"
        "\x23\xf4\xd0\x4a\xb9\x8f\x97\x3d\x07\x3b\x0d\x50\xeb\xef\xb8\xb3\xfc"
        "\xe7\x29\xee\xca\xe1\xea\x36\x94\x06\xba\xa6\x89\xdb\x34\xd0\xb4\x90"
        "\x8f\x7e\x6f\x03\x9e\xd5\x91\xfb\xd1\x1a\x06\xfd\xa1\xb9\xc2\x17\xdf"
        "\xf8\xe1\x84\xbf\xa6\x12\xfe\x6e\xf3\x46\x67\x8a\x92\x34\x1d\xbf\x02"
        "\x81\xd8\xcc\x21\x7d\x14\x82\x60\x15\xd0\xb8\x27\x5e\xe1\x6d\x2b\xc4"
        "\x5c\xb0\x53\xff\xc7\x44\x46\x13\xe8\x61\x13\xcd\xb1\x55\xd6\x08\x90"
        "\x79\x07\xb6\xe1\x90\x85\x9d\xc1\x3e\x77\xae\x4c\x75\x7c\xfb\x34\xa6"
        "\x3f\x59\x4f\x96\x5b\x18\x87\x87\x29\xe7\x5b\x14\x94\x5b\xb5\x5b\x8a"
        "\xc8\xf4\x7b\x81\x17\x5b\x8a\xdf\x65\xff\x15\x27\xfe\xc9\x4e\x61\x9a"
        "\x2f\xbd\x57\x82\x85\xa0\xe6\xd5\x8f\xc7\xc7\x95\xc6\x21\x74\x4b\xa8"
        "\xb9\x97\x7b\x6b\x59\x5e\xc8\x69\x9f\x9f\x98\x62\x47\xa4\x32\x93\x7a"
        "\x2d\xf6\x87\xaf\x6f\x37\x58\x3b\xec\x45\xc3\xb7\xc5\x83\xd8\x62\xe7"
        "\xbe\x07\x02\xf8\xa8\x36\x96\xb3\x6d\xa2\xe2\x5a\x8a\x83\x9c\x52\xdb"
        "\x94\x99\xd6\xc5\xd3\xf1\x88\x24\x23\x79\xb6\x58\x9f\x43\xf5\xa5\xec"
        "\x7a\x06\x94\x16\xe7\xce\x07\xf7\x1f\x65\xcf\xfc\x46\x9d\xe9\x28\xad"
        "\xbc\x9f\x40\xf7\xbd\xba\xe4\xb2\x3c\xb5\x51\x82\xf2\xb1\x24\x5f\x92"
        "\x55\xd9\x9e\xbe\xde\x69\x85\xfa\x5d\x9e\x0b\x41\x3b\x1f\xbc\x64\x0f"
        "\xf8\x00\xfc\xa1\xf7\xa8\xb0\x2d\x7f\x28\x3a\x2f\x25\x6e\xdc\x8e\x05"
        "\x2c\x28\x4e\xf3\x45\xd7\xc0\x8f\x3f\x1f\xc6\x96\x7d\x66\x75\x66\x1a"
        "\xe8\xe7\x15\x6a\x46\xa9\x70\x52\x3f\x68\xb7\x68\xac\x29\xd7\xab\x24"
        "\xcb\x46\x8f\x14\x7c\x59\x5f\x8e\x49\x18\x0c\xce\x49\xec\x4c\xc1\x8a"
        "\x3e\x58\xa2\xe5\x9b\xed\x8a\x34\xab\x91\x04\x81\x8c\x93\xc5\x7b\x5b"
        "\xca\xc5\xe8\x39\x89\x7d\xd5\xe1\xaa\xf7\x3b\x73\x50\x9a\xeb\x2f\xdc"
        "\x21\x15\xb0\x65\x81\x28\x1d\xab\x51\x36\xc1\x13\xa9\xd1\x93\xc5\x2c"
        "\x21\xf3\x69\x50\x08\xe4\x82\x1d\x4c\xe9\x0f\xb3\x0c\x57\xa3\x16\xb0"
        "\xbc\x07\x9e\xec\x44\xd7\x56\xda\xda\xe7\x0e\x22\xda\xf7\x65\x59\x49"
        "\x22\x14\x08\x71\x8c\xce\x39\x96\xfd\x16\x51\x3e\xd0\xb6\xba\x2c\x28"
        "\x9b\x38\x5b\xc9\xaf\xdb\xa1\x88\x63\x78\x46\x96\x0f\x74\x07\xcb\x91"
        "\x6d\x72\xd0\xa9\xea\x5c\xd4\xeb\x6b\xef\xdd\xbd\x9a\x66\x48\x02\x4b"
        "\x77\x84\x5c\x65\x97\x78\xb9\x19\x32\x93\xc5\xd5\xf9\x93\x1f\x09\x85"
        "\x20\x36\xd9\xba\x0e\xf5\xc3\x35\x87\x47\xd4\xbf\xfb\x0e\x5d\x20\xed"
        "\xec\x12\x35\x6b\x0b\xe1\x5a\xa1\x75\x07\xeb\xf9\x47\xa0\x00\x2a\xcd"
        "\xa9\x4f\x1e\x04\x03\x78\xc4\xda\xd4\x0b\x6a\xd8\x15\x28\xf9\x3c\xc2"
        "\xfe\xbd\x0c\xbb\x47\xf0\x30\x9f\xb7\xb4\xeb\x58\xa5\x0f\x01\x18\xc9"
        "\xb2\xf8\xc1\x58\xe5\x08\xa2\x29\x3b\x67\x75\xba\x69\x9c\x36\x4e\xb4"
        "\x57\xa6\xcf\xcc\x68\xac\xa6\x52\xe7\xa1\xc8\x45\x8c\xa0\xf9\x22\x64"
        "\xb3\x63\x83\x96\x50\x89\xa9\x4b\x7e\x02\xcc\x08\xb5\x73\xda\x17\xa3"
        "\x75\x75\xed\xa9\xa0\x42\x77\x66\x69\x7b\x45\x95\x11\x0b\x03\xc8\x19"
        "\x31\x5b\xc0\xb9\x53\x8f\x7b\x77\x9a\x6d\x0e\x1b\x6b\x31\x1e\xab\xd6"
        "\xee\x20\x83\xa4\xac\xe9\xb2\xb0\xdf\x6f\xf6\xc4\x95\x81\x9e\xb4\x43"
        "\x40\xa4\x53\x7f\x20\xc0\x0b\xe1\xff\xba\x15\xd4\x0f\xbd\xaa\xa2\xde"
        "\xf4\x02\x1b\x86\x4d\x58\xa4\x08\x2f\xb1\xef\x9f\x9b\xe2\xae\x47\xe9"
        "\xce\xbf\xd6\x46\xe9\x3a\x1b\xae\x12\xf9\x4a\xf7\x7d\x29\x05\x51\x87"
        "\x41\x23\xbf\x84\xb1\x0b\xef\x35\xe4\x19\xd4\xd1\x5f\x03\xf0\x89\xe3"
        "\xed\xf8\x52\x35\xa9\x00\x83\xd2\xb4\xba\x51\x77\xed\x57\xbd\xcb\x88"
        "\xec\x5d\x5a\xec\x2c\x5e\x0e\x80\x3b\xa6\xdf\x6e\x8f\x90\x0f\x8a\x62"
        "\xe3\xe9\xa0\x78\x5a\xa7\x57\x0b\xd9\xba\xda\x4e\xec\xf1\x96\x0c\x8f"
        "\x25\x45\x4e\x21\xb0\xce\x99\x1f\x24\x4e\x6a\xd3\xb8\x4f\xa2\xf9\xd3"
        "\x04\x40\x03\x8b\xa6\xe6\xd2\x4e\x5d\x70\x5e\x46\x6c\xaf\xff\xbe\x10"
        "\xb3\x87\xe1\x30\x35\xfe\x49\xcf\xe3\xac\x59\xd8\xd3\xac\xa4\x18\x00"
        "\x98\xba\xf0\xe1\xbd\xb4\x05\xe9\xc6\x25\x8f\x22\x77\x09\xdc\x2e\x0c"
        "\x6f\x3c\x59\x0b\x82\xb9\x2f\x99\x03\x0b\x00\x5b\x9a\x66\x3f\xb8\x01"
        "\xce\x39\x5d\xe1\x34\x5b\xcb\xe4\x6b\x3a\x66\xdb\x00\xb5\x70\x7c\x0e"
        "\x4c\x25\xa2\x6c\xd1\xda\x72\x9d\xd4\x46\x0a\x4a\xc1\x39\x5a\xf6\x0d"
        "\xf1\xf1\xea\x00\xd9\x19\x26\xf8\xdd\x0f\xd3\x29\x03\x52\x47\x88\xf1"
        "\x7f\x5f\x72\xc3\x0c\x63\x51\x5f\xd9\xb7\x1a\x1b\x90\xdb\x10\xb3\x31"
        "\x9c\xa0\x32\x9d\x98\x2c\x8f\x54\xcd\x4b\x7c\xa0\x12\x68\x5f\x8f\x3e"
        "\xcc\x7f\x37\xc6\x17\x52\xda\x31\x9b\xf5\x2c\x4b\x69\x60\xca\xe7\xd0"
        "\x67\xa4\xa0\x80\x3d\x24\xad\x6c\x48\xfe\x29\x26\x19\x93\xda\x6b\xd2"
        "\xb0\x5e\xcf\x11\xbb\x73\x1e\x98\x07\x77\xde\x00\xf3\x52\x6d\x40\x91"
        "\xc7\x6f\x16\x9e\x1f\xb9\xb3\x8f\x2a\x58\xd0\x01\x33\xf4\xf5\xaa\x10"
        "\x60\x42\x38\x34\xd3\x3b\x81\xe9\x77\xa0\xff\x28\x90\xa3\x98\x80\x17"
        "\x31\x1c\x7f\x9e\x8e\xab\xe6\x27\xc2\x94\xe6\x03\xea\x25\x4d\x5f\xbc"
        "\x6a\xc7\xcd\xb2\x9a\xf7\x65\xa8\x94\x2c\x1a\xfb\x41\x2b\x1f\x4c\xe3"
        "\x2f\xd8\x2b\x6e\x7a\x83\xa3\x6d\xb5\xa6\x73\xaa\xbd\xf1\x0b\x64\x55"
        "\x89\x6d\xa1\x13\xc3\xfb\xd3\x42\x63\x02\xb6\xdf\xf9\x0a\x85\x5e\x26"
        "\xf5\x5c\xef\x78\x28\x91\x74\x01\xf7\x24\x46\x7d\x0e\x8a\x3e\x48\x3a"
        "\xee\xc9\xde\xcf\x13\x6d\xb3\x77\x39\x04\x36\xce\x05\xe9\x84\x43\xbc"
        "\x79\x93\x14\x31\xed\x9f\x34\xe0\x0d\x64\x77\x29\xda\xbd\xc2\x2b\xc3"
        "\xff\x7c\xc5\x59\x20\xbd\x32\x17\xac\xd6\x5e\xd3\xfd\xba\xfb\xb2\xdc"
        "\x16\x93\x1b\x26\x67\x4e\xd4\x8f\x95\x14\x5e\x87\x81\xaa\x21\x13\xf1"
        "\x9d\x26\xb1\x5a\x64\xd5\xa8\xde\x00\xd2\xda\x7f\xcf\xf3\x5f\xa6\x03"
        "\xbb\x45\xeb\xb1\xa0\x64\x35\x44\xc8\xa7\x63\x1f\x15\x88\x56\x08\x2f"
        "\x81\x43\xe5\xa1\x42\x5d\xe7\xeb\x3d\x9e\xbe\x46\x7c\xc5\x21\x84\x3a"
        "\x5f\xe2\x1b\x3b\xed\x4c\x40\x19\x9e\x67\xaa\xff\x14\x39\x16\x7e\x17"
        "\xbb\x63\x0e\xae\x80\xb1\x37\xb4\x19\xa5\x2c\x22\x41\x97\xa6\xed\x61"
        "\x51\xd2\x50\x15\x58\x34\x8d\xc3\x4c\xd4\xfa\xaf\xf5\x36\x10\x7c\xf7"
        "\x68\x05\x4a\x67\xe6\xc3\xdb\x1c\xcc\x25\xe7\xe9\xf7\x50\x79\xde\x69"
        "\x52\x4d\xca\x92\x97\xd9\xa2\x64\x51\xc7\xe5\x6e\x45\x0d\xe4\xd1\x11"
        "\xc7\x5a\xfc\xb2\xcb\x6f\xc9\xc4\xac\x84\xb5\xfd\xe8\x39\x7d\x55\xf6"
        "\xe4\xb2\xab\xe0\x28\xcb\xfb\x90\xc4\x72\x71\xfc\x96\x1b\x4b\xf8\x91"
        "\xb4\x97\xed\xdc\xba\xa3\x6a\x62\xd3\x72\x8d\x18\xc2\xe2\xaa\xfe\xb8"
        "\xce\x4d\x67\xc9\x32\x03\xe0\x61\xf3\x8e\x30\xd6\xa3\x54\xd8\x60\xf9"
        "\x08\x87\xe8\x03\x1d\x7d\x41\x6b\xc6\xdc\xfd\x09\xd2\x45\xed\x10\xe9"
        "\xa3\x4c\xe2\x71\xa2\x4b\xe5\xa1\x90\x0c\x23\x88\xdd\x61\x9f\xf3\x61"
        "\xc1\x49\x4b\xa8\x06\x7a\x96\x05\xc4\x50\xef\x5e\x6c\xb7\xab\xdc\x70"
        "\x90\x1c\x7d\xe2\x4c\xf7\x70\x4b\x99\x72\x43\x6b\xf6\xbd\x03\x2d\x95"
        "\xab\xcd\xbf\xb5\x66\x65\x31\x42\x44\x3f\x8b\xdb\x4d\x09\x50\x40\xdb"
        "\x5f\x86\x2a\x57\xec\x06\x40\x35\xfa\x39\x23\x71\x6b\x3a\x2b\xc2\xda"
        "\x09\xf3\xe0\xba\xe7\x4c\xa7\xa9\x25\x97\x95\xcc\x37\x6e\xb0\x22\x5e"
        "\x54\x85\xdb\xf9\x4b\xc1\x75\x43\x6b\xe5\xf0\x9b\x7f\x74\xac\xda\x8b"
        "\x7a\x0d\xc2\xe8\x66\x9b\xcc\xc7\x8f\x2a\x58\x5d\xbe\xe1\xca\x44\x85"
        "\x8d\xe0\x27\x1d\x61\xd5\xd5\xa0\x2c\xac\x64\x39\x7b\x75\x6e\xd7\x94"
        "\x49\x43\x37\xe6\x5d\x12\x0e\x44\x7c\x96\x0c\xb8\x51\x9b\xf0\xfa\x1c"
        "\x8e\x00\xb9\x13\x91\xc1\xff\xbc\xf7\x2b\x33\xb8\x1f\xa4\xdd\xf5\x8c"
        "\x84\xe6\xf2\x03\x29\xaa\x6f\xbc\x17\x19\xc5\x47\xc4\x58\x50\x1c\x74"
        "\xaf\x97\x42\xd6\x38\xf9\xcc\x2f\x85\xba\x1d\x81\x5c\xd9\x53\x80\xcb"
        "\xcd\x35\x80\x65\x7c\xba\xcb\xfa\x06\x6b\xf3\xa5\x4a\xdf\x62\x49\x8d"
        "\x63\xb4\x74\x29\x5d\x19\x07\xca\x86\x40\xee\xed\x40\x6a\x21\x8a\xfb"
        "\xf0\x6d\x2f\x7c\x2f\x37\x79\x82\x96\xe6\x28\xe1\x39\xab\x71\x5c\x8b"
        "\x6d\x46\xb9\x97\x17\x16\xf6\xa3\x93\x9b\x71\x79\x11\x4a\x03\xb3\xb7"
        "\x5c\x94\x8b\xaf\xab\xbc\x59\x8f\x10\x49\xaf\x16\x54\xc8\xa6",
        8192);
    *(uint64_t*)0x20000b80 = 0;
    *(uint64_t*)0x20000b88 = 0;
    *(uint64_t*)0x20000b90 = 0;
    *(uint64_t*)0x20000b98 = 0;
    *(uint64_t*)0x20000ba0 = 0;
    *(uint64_t*)0x20000ba8 = 0;
    *(uint64_t*)0x20000bb0 = 0;
    *(uint64_t*)0x20000bb8 = 0x20000500;
    *(uint32_t*)0x20000500 = 0x18;
    *(uint32_t*)0x20000504 = 0;
    *(uint64_t*)0x20000508 = 0x3ff;
    *(uint32_t*)0x20000510 = 2;
    *(uint32_t*)0x20000514 = 0;
    *(uint64_t*)0x20000bc0 = 0;
    *(uint64_t*)0x20000bc8 = 0;
    *(uint64_t*)0x20000bd0 = 0;
    *(uint64_t*)0x20000bd8 = 0x20000640;
    *(uint32_t*)0x20000640 = 0x90;
    *(uint32_t*)0x20000644 = 0;
    *(uint64_t*)0x20000648 = 0x80;
    *(uint64_t*)0x20000650 = 5;
    *(uint64_t*)0x20000658 = 2;
    *(uint64_t*)0x20000660 = 0xc6cd;
    *(uint64_t*)0x20000668 = 0x200;
    *(uint32_t*)0x20000670 = 8;
    *(uint32_t*)0x20000674 = 3;
    *(uint64_t*)0x20000678 = 6;
    *(uint64_t*)0x20000680 = 0xfffffffffffffe00;
    *(uint64_t*)0x20000688 = 0x8000000000000000;
    *(uint64_t*)0x20000690 = 0x101;
    *(uint64_t*)0x20000698 = 5;
    *(uint64_t*)0x200006a0 = 0xfffffffffffffeff;
    *(uint32_t*)0x200006a8 = 0x362;
    *(uint32_t*)0x200006ac = 9;
    *(uint32_t*)0x200006b0 = 0;
    *(uint32_t*)0x200006b4 = 0x8000;
    *(uint32_t*)0x200006b8 = 5;
    *(uint32_t*)0x200006bc = r[2];
    *(uint32_t*)0x200006c0 = r[3];
    *(uint32_t*)0x200006c4 = 0x8001;
    *(uint32_t*)0x200006c8 = 6;
    *(uint32_t*)0x200006cc = 0;
    *(uint64_t*)0x20000be0 = 0;
    *(uint64_t*)0x20000be8 = 0x20001040;
    *(uint32_t*)0x20001040 = 0x668;
    *(uint32_t*)0x20001044 = 0;
    *(uint64_t*)0x20001048 = 9;
    *(uint64_t*)0x20001050 = 5;
    *(uint64_t*)0x20001058 = 1;
    *(uint64_t*)0x20001060 = 7;
    *(uint64_t*)0x20001068 = 6;
    *(uint32_t*)0x20001070 = 0x6c2;
    *(uint32_t*)0x20001074 = 0x7fffffff;
    *(uint64_t*)0x20001078 = 3;
    *(uint64_t*)0x20001080 = 4;
    *(uint64_t*)0x20001088 = 0x80000000;
    *(uint64_t*)0x20001090 = 3;
    *(uint64_t*)0x20001098 = 3;
    *(uint64_t*)0x200010a0 = 3;
    *(uint32_t*)0x200010a8 = 0xfffffa1e;
    *(uint32_t*)0x200010ac = 0x8000;
    *(uint32_t*)0x200010b0 = 1;
    *(uint32_t*)0x200010b4 = 0x8000;
    *(uint32_t*)0x200010b8 = 0;
    *(uint32_t*)0x200010bc = 0;
    *(uint32_t*)0x200010c0 = 0;
    *(uint32_t*)0x200010c4 = 7;
    *(uint32_t*)0x200010c8 = 0x4f8;
    *(uint32_t*)0x200010cc = 0;
    *(uint64_t*)0x200010d0 = 5;
    *(uint64_t*)0x200010d8 = 0x80000000;
    *(uint32_t*)0x200010e0 = 4;
    *(uint32_t*)0x200010e4 = 2;
    memcpy((void*)0x200010e8, "^-.*", 4);
    *(uint64_t*)0x200010f0 = 5;
    *(uint64_t*)0x200010f8 = 1;
    *(uint64_t*)0x20001100 = 0xfff;
    *(uint64_t*)0x20001108 = 0xfffffffffffffffa;
    *(uint32_t*)0x20001110 = 0x5c;
    *(uint32_t*)0x20001114 = 0x100;
    *(uint64_t*)0x20001118 = 0;
    *(uint64_t*)0x20001120 = 0x8001;
    *(uint64_t*)0x20001128 = 0x101;
    *(uint64_t*)0x20001130 = 0x92fc;
    *(uint64_t*)0x20001138 = 5;
    *(uint64_t*)0x20001140 = 0x5eb;
    *(uint32_t*)0x20001148 = 0;
    *(uint32_t*)0x2000114c = 3;
    *(uint32_t*)0x20001150 = 5;
    *(uint32_t*)0x20001154 = 0x8000;
    *(uint32_t*)0x20001158 = 9;
    *(uint32_t*)0x2000115c = 0;
    *(uint32_t*)0x20001160 = r[3];
    *(uint32_t*)0x20001164 = 8;
    *(uint32_t*)0x20001168 = 0xfffffffe;
    *(uint32_t*)0x2000116c = 0;
    *(uint64_t*)0x20001170 = 0;
    *(uint64_t*)0x20001178 = 1;
    *(uint32_t*)0x20001180 = 0x12;
    *(uint32_t*)0x20001184 = 5;
    memcpy((void*)0x20001188, "svcrdma_post_send\000", 18);
    *(uint64_t*)0x200011a0 = 6;
    *(uint64_t*)0x200011a8 = 2;
    *(uint64_t*)0x200011b0 = 5;
    *(uint64_t*)0x200011b8 = 0x1f;
    *(uint32_t*)0x200011c0 = 3;
    *(uint32_t*)0x200011c4 = 0x80000001;
    *(uint64_t*)0x200011c8 = 0;
    *(uint64_t*)0x200011d0 = 0xffffffffffff2d5b;
    *(uint64_t*)0x200011d8 = 2;
    *(uint64_t*)0x200011e0 = 8;
    *(uint64_t*)0x200011e8 = 0x9110;
    *(uint64_t*)0x200011f0 = 0xfff;
    *(uint32_t*)0x200011f8 = 0x800;
    *(uint32_t*)0x200011fc = 0x95a773c;
    *(uint32_t*)0x20001200 = 1;
    *(uint32_t*)0x20001204 = 0x1000;
    *(uint32_t*)0x20001208 = 0x80000000;
    *(uint32_t*)0x2000120c = r[2];
    *(uint32_t*)0x20001210 = 0;
    *(uint32_t*)0x20001214 = 0xffff;
    *(uint32_t*)0x20001218 = 6;
    *(uint32_t*)0x2000121c = 0;
    *(uint64_t*)0x20001220 = 2;
    *(uint64_t*)0x20001228 = 0x8001;
    *(uint32_t*)0x20001230 = 1;
    *(uint32_t*)0x20001234 = 0x611e;
    memset((void*)0x20001238, 0, 1);
    *(uint64_t*)0x20001240 = 6;
    *(uint64_t*)0x20001248 = 3;
    *(uint64_t*)0x20001250 = 0xe96;
    *(uint64_t*)0x20001258 = 0xd2a;
    *(uint32_t*)0x20001260 = 8;
    *(uint32_t*)0x20001264 = 0x1426;
    *(uint64_t*)0x20001268 = 5;
    *(uint64_t*)0x20001270 = 0x100000001;
    *(uint64_t*)0x20001278 = 7;
    *(uint64_t*)0x20001280 = 0xfffffffffffffff8;
    *(uint64_t*)0x20001288 = 3;
    *(uint64_t*)0x20001290 = 4;
    *(uint32_t*)0x20001298 = 7;
    *(uint32_t*)0x2000129c = 0x80;
    *(uint32_t*)0x200012a0 = 0x80000000;
    *(uint32_t*)0x200012a4 = 0x2000;
    *(uint32_t*)0x200012a8 = 5;
    *(uint32_t*)0x200012ac = r[2];
    *(uint32_t*)0x200012b0 = r[3];
    *(uint32_t*)0x200012b4 = 0xffffff80;
    *(uint32_t*)0x200012b8 = 1;
    *(uint32_t*)0x200012bc = 0;
    *(uint64_t*)0x200012c0 = 0;
    *(uint64_t*)0x200012c8 = 0;
    *(uint32_t*)0x200012d0 = 0xa;
    *(uint32_t*)0x200012d4 = 0xae;
    memcpy((void*)0x200012d8, "/dev/fuse\000", 10);
    *(uint64_t*)0x200012e8 = 4;
    *(uint64_t*)0x200012f0 = 0;
    *(uint64_t*)0x200012f8 = 9;
    *(uint64_t*)0x20001300 = 0x7ba8b415;
    *(uint32_t*)0x20001308 = 4;
    *(uint32_t*)0x2000130c = 0xffffffc1;
    *(uint64_t*)0x20001310 = 5;
    *(uint64_t*)0x20001318 = 4;
    *(uint64_t*)0x20001320 = 0x3ec;
    *(uint64_t*)0x20001328 = 0x20;
    *(uint64_t*)0x20001330 = 4;
    *(uint64_t*)0x20001338 = 0x8000000000000000;
    *(uint32_t*)0x20001340 = 8;
    *(uint32_t*)0x20001344 = 3;
    *(uint32_t*)0x20001348 = 8;
    *(uint32_t*)0x2000134c = 0x4000;
    *(uint32_t*)0x20001350 = 0xfffffffa;
    *(uint32_t*)0x20001354 = 0;
    *(uint32_t*)0x20001358 = 0;
    *(uint32_t*)0x2000135c = 0x80000000;
    *(uint32_t*)0x20001360 = 3;
    *(uint32_t*)0x20001364 = 0;
    *(uint64_t*)0x20001368 = 3;
    *(uint64_t*)0x20001370 = 7;
    *(uint32_t*)0x20001378 = 0x12;
    *(uint32_t*)0x2000137c = 2;
    memcpy((void*)0x20001380, "svcrdma_post_send\000", 18);
    *(uint64_t*)0x20001398 = 6;
    *(uint64_t*)0x200013a0 = 1;
    *(uint64_t*)0x200013a8 = 0x80000000;
    *(uint64_t*)0x200013b0 = 8;
    *(uint32_t*)0x200013b8 = 0x8000;
    *(uint32_t*)0x200013bc = 0x101;
    *(uint64_t*)0x200013c0 = 3;
    *(uint64_t*)0x200013c8 = 3;
    *(uint64_t*)0x200013d0 = 6;
    *(uint64_t*)0x200013d8 = 4;
    *(uint64_t*)0x200013e0 = 7;
    *(uint64_t*)0x200013e8 = 3;
    *(uint32_t*)0x200013f0 = 1;
    *(uint32_t*)0x200013f4 = 0xbbb;
    *(uint32_t*)0x200013f8 = 0x7fff;
    *(uint32_t*)0x200013fc = 0x1000;
    *(uint32_t*)0x20001400 = 0x7fff;
    *(uint32_t*)0x20001404 = r[2];
    *(uint32_t*)0x20001408 = r[3];
    *(uint32_t*)0x2000140c = 6;
    *(uint32_t*)0x20001410 = 0x40;
    *(uint32_t*)0x20001414 = 0;
    *(uint64_t*)0x20001418 = 3;
    *(uint64_t*)0x20001420 = 8;
    *(uint32_t*)0x20001428 = 2;
    *(uint32_t*)0x2000142c = -1;
    memcpy((void*)0x20001430, "fd", 2);
    *(uint64_t*)0x20001438 = 0;
    *(uint64_t*)0x20001440 = 1;
    *(uint64_t*)0x20001448 = 0x39;
    *(uint64_t*)0x20001450 = 4;
    *(uint32_t*)0x20001458 = 6;
    *(uint32_t*)0x2000145c = 0x1f;
    *(uint64_t*)0x20001460 = 5;
    *(uint64_t*)0x20001468 = 8;
    *(uint64_t*)0x20001470 = 0x4dea;
    *(uint64_t*)0x20001478 = 4;
    *(uint64_t*)0x20001480 = 5;
    *(uint64_t*)0x20001488 = 9;
    *(uint32_t*)0x20001490 = 0;
    *(uint32_t*)0x20001494 = 0x9c;
    *(uint32_t*)0x20001498 = 0x41;
    *(uint32_t*)0x2000149c = 0x4000;
    *(uint32_t*)0x200014a0 = 6;
    *(uint32_t*)0x200014a4 = 0;
    *(uint32_t*)0x200014a8 = r[3];
    *(uint32_t*)0x200014ac = 0xd82;
    *(uint32_t*)0x200014b0 = 5;
    *(uint32_t*)0x200014b4 = 0;
    *(uint64_t*)0x200014b8 = 1;
    *(uint64_t*)0x200014c0 = 0x56d;
    *(uint32_t*)0x200014c8 = 0;
    *(uint32_t*)0x200014cc = -1;
    *(uint64_t*)0x200014d0 = 4;
    *(uint64_t*)0x200014d8 = 2;
    *(uint64_t*)0x200014e0 = 0x8000000000000000;
    *(uint64_t*)0x200014e8 = 0;
    *(uint32_t*)0x200014f0 = 0x20;
    *(uint32_t*)0x200014f4 = 1;
    *(uint64_t*)0x200014f8 = 5;
    *(uint64_t*)0x20001500 = 0x8001;
    *(uint64_t*)0x20001508 = 3;
    *(uint64_t*)0x20001510 = 0xfff;
    *(uint64_t*)0x20001518 = 1;
    *(uint64_t*)0x20001520 = 0x4f33;
    *(uint32_t*)0x20001528 = 0xc00000;
    *(uint32_t*)0x2000152c = 0xb9;
    *(uint32_t*)0x20001530 = 5;
    *(uint32_t*)0x20001534 = 0x6000;
    *(uint32_t*)0x20001538 = 0x401;
    *(uint32_t*)0x2000153c = r[2];
    *(uint32_t*)0x20001540 = 0;
    *(uint32_t*)0x20001544 = 1;
    *(uint32_t*)0x20001548 = 2;
    *(uint32_t*)0x2000154c = 0;
    *(uint64_t*)0x20001550 = 5;
    *(uint64_t*)0x20001558 = 0x3f;
    *(uint32_t*)0x20001560 = 7;
    *(uint32_t*)0x20001564 = 1;
    memcpy((void*)0x20001568, "user_id", 7);
    *(uint64_t*)0x20001570 = 1;
    *(uint64_t*)0x20001578 = 1;
    *(uint64_t*)0x20001580 = 0x2c;
    *(uint64_t*)0x20001588 = 8;
    *(uint32_t*)0x20001590 = 1;
    *(uint32_t*)0x20001594 = 0xd7ad;
    *(uint64_t*)0x20001598 = 2;
    *(uint64_t*)0x200015a0 = 0xfffffffffffffffe;
    *(uint64_t*)0x200015a8 = 0;
    *(uint64_t*)0x200015b0 = 0xd9;
    *(uint64_t*)0x200015b8 = 0x5f8;
    *(uint64_t*)0x200015c0 = 9;
    *(uint32_t*)0x200015c8 = 8;
    *(uint32_t*)0x200015cc = 2;
    *(uint32_t*)0x200015d0 = 0xafaf;
    *(uint32_t*)0x200015d4 = 0x4000;
    *(uint32_t*)0x200015d8 = 4;
    *(uint32_t*)0x200015dc = 0;
    *(uint32_t*)0x200015e0 = 0;
    *(uint32_t*)0x200015e4 = 0x1ff;
    *(uint32_t*)0x200015e8 = 6;
    *(uint32_t*)0x200015ec = 0;
    *(uint64_t*)0x200015f0 = 3;
    *(uint64_t*)0x200015f8 = 0xfff;
    *(uint32_t*)0x20001600 = 5;
    *(uint32_t*)0x20001604 = 4;
    memcpy((void*)0x20001608, "fuse\000", 5);
    *(uint64_t*)0x20001610 = 0;
    *(uint64_t*)0x20001618 = 1;
    *(uint64_t*)0x20001620 = 0x10000;
    *(uint64_t*)0x20001628 = 0x81;
    *(uint32_t*)0x20001630 = 7;
    *(uint32_t*)0x20001634 = 3;
    *(uint64_t*)0x20001638 = 1;
    *(uint64_t*)0x20001640 = 0x10001;
    *(uint64_t*)0x20001648 = 7;
    *(uint64_t*)0x20001650 = 0xffff;
    *(uint64_t*)0x20001658 = 0x100000001;
    *(uint64_t*)0x20001660 = 1;
    *(uint32_t*)0x20001668 = 5;
    *(uint32_t*)0x2000166c = 0x401;
    *(uint32_t*)0x20001670 = 3;
    *(uint32_t*)0x20001674 = 0xc000;
    *(uint32_t*)0x20001678 = 1;
    *(uint32_t*)0x2000167c = r[2];
    *(uint32_t*)0x20001680 = r[3];
    *(uint32_t*)0x20001684 = 0x3ff;
    *(uint32_t*)0x20001688 = 0;
    *(uint32_t*)0x2000168c = 0;
    *(uint64_t*)0x20001690 = 6;
    *(uint64_t*)0x20001698 = 4;
    *(uint32_t*)0x200016a0 = 0;
    *(uint32_t*)0x200016a4 = 8;
    *(uint64_t*)0x20000bf0 = 0;
    *(uint64_t*)0x20000bf8 = 0;
    syz_fuse_handle_req(/*fd=*/r[0], /*buf=*/0x20004800, /*len=*/0x2000,
                        /*res=*/0x20000b80);
    break;
  case 4:
    *(uint32_t*)0x20000000 = 0x50;
    *(uint32_t*)0x20000004 = 0;
    *(uint64_t*)0x20000008 = r[1];
    *(uint32_t*)0x20000010 = 7;
    *(uint32_t*)0x20000014 = 5;
    *(uint32_t*)0x20000018 = 0;
    *(uint32_t*)0x2000001c = 0;
    *(uint16_t*)0x20000020 = 0;
    *(uint16_t*)0x20000022 = 0;
    *(uint32_t*)0x20000024 = 0;
    *(uint32_t*)0x20000028 = 0;
    *(uint16_t*)0x2000002c = 0;
    *(uint16_t*)0x2000002e = 0;
    memset((void*)0x20000030, 0, 32);
    syscall(__NR_write, /*fd=*/r[0], /*arg=*/0x20000000ul, /*len=*/0x50ul);
    break;
  case 5:
    memcpy((void*)0x200001c0, "./file0/file0\000", 14);
    syz_mount_image(/*fs=*/0, /*dir=*/0x200001c0, /*flags=*/0, /*opts=*/0,
                    /*chdir=*/0, /*size=*/0, /*img=*/0);
    break;
  }
}
int main(void)
{
  syscall(__NR_mmap, /*addr=*/0x1ffff000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=*/0x32ul, /*fd=*/-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x20000000ul, /*len=*/0x1000000ul, /*prot=*/7ul,
          /*flags=*/0x32ul, /*fd=*/-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x21000000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=*/0x32ul, /*fd=*/-1, /*offset=*/0ul);
  setup_sysctl();
  setup_cgroups();
  setup_binfmt_misc();
  setup_swap();
  use_temporary_dir();
  do_sandbox_none();
  return 0;
}