// https://syzkaller.appspot.com/bug?id=d10c7911a536f40b3401a3492b4563a08f2ed65b
// 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/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/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 struct nlmsg nlmsg;

#define DEVLINK_FAMILY_NAME "devlink"

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

static struct nlmsg nlmsg2;

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

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

static void netdevsim_add(unsigned int addr, unsigned int port_count)
{
  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);
}

#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, max_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 void reset_loop_device(const char* loopname)
{
  int loopfd = open(loopname, O_RDWR);
  if (loopfd == -1) {
    return;
  }
  if (ioctl(loopfd, LOOP_CLR_FD, 0)) {
  }
  close(loopfd);
}

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, 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) {
    int loopfd;
    memset(loopname, 0, sizeof(loopname));
    snprintf(loopname, sizeof(loopname), "/dev/loop%llu", procid);
    if (setup_loop_device(data, size, loopname, &loopfd) == -1)
      return -1;
    close(loopfd);
    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)
    reset_loop_device(loopname);
  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:
    case ENOENT:
      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:
    case ENOENT:
      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:
    case ENOENT:
      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:
    case ENOENT:
      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:
    case ENOENT:
      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:
    case ENOENT:
      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 initialize_cgroups()
{
  if (mkdir("./syz-tmp/newroot/syzcgroup", 0700))
    exit(1);
  if (mkdir("./syz-tmp/newroot/syzcgroup/unified", 0700))
    exit(1);
  if (mkdir("./syz-tmp/newroot/syzcgroup/cpu", 0700))
    exit(1);
  if (mkdir("./syz-tmp/newroot/syzcgroup/net", 0700))
    exit(1);
  unsigned bind_mount_flags = MS_BIND | MS_REC | MS_PRIVATE;
  if (mount("/syzcgroup/unified", "./syz-tmp/newroot/syzcgroup/unified", NULL,
            bind_mount_flags, NULL)) {
  }
  if (mount("/syzcgroup/cpu", "./syz-tmp/newroot/syzcgroup/cpu", NULL,
            bind_mount_flags, NULL)) {
  }
  if (mount("/syzcgroup/net", "./syz-tmp/newroot/syzcgroup/net", NULL,
            bind_mount_flags, NULL)) {
  }
}

static void sandbox_common_mount_tmpfs(void)
{
  write_file("/proc/sys/fs/mount-max", "100000");
  if (mkdir("./syz-tmp", 0777))
    exit(1);
  if (mount("", "./syz-tmp", "tmpfs", 0, NULL))
    exit(1);
  if (mkdir("./syz-tmp/newroot", 0777))
    exit(1);
  if (mkdir("./syz-tmp/newroot/dev", 0700))
    exit(1);
  unsigned bind_mount_flags = MS_BIND | MS_REC | MS_PRIVATE;
  if (mount("/dev", "./syz-tmp/newroot/dev", NULL, bind_mount_flags, NULL))
    exit(1);
  if (mkdir("./syz-tmp/newroot/proc", 0700))
    exit(1);
  if (mount("syz-proc", "./syz-tmp/newroot/proc", "proc", 0, NULL))
    exit(1);
  if (mkdir("./syz-tmp/newroot/selinux", 0700))
    exit(1);
  const char* selinux_path = "./syz-tmp/newroot/selinux";
  if (mount("/selinux", selinux_path, NULL, bind_mount_flags, NULL)) {
    if (errno != ENOENT)
      exit(1);
    if (mount("/sys/fs/selinux", selinux_path, NULL, bind_mount_flags, NULL) &&
        errno != ENOENT)
      exit(1);
  }
  if (mkdir("./syz-tmp/newroot/sys", 0700))
    exit(1);
  if (mount("/sys", "./syz-tmp/newroot/sys", 0, bind_mount_flags, NULL))
    exit(1);
  initialize_cgroups();
  if (mkdir("./syz-tmp/pivot", 0777))
    exit(1);
  if (syscall(SYS_pivot_root, "./syz-tmp", "./syz-tmp/pivot")) {
    if (chdir("./syz-tmp"))
      exit(1);
  } else {
    if (chdir("/"))
      exit(1);
    if (umount2("./pivot", MNT_DETACH))
      exit(1);
  }
  if (chroot("./newroot"))
    exit(1);
  if (chdir("/"))
    exit(1);
}

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_netdevices();
  sandbox_common_mount_tmpfs();
  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;
  const int umount_flags = MNT_FORCE | UMOUNT_NOFOLLOW;

retry:
  while (umount2(dir, umount_flags) == 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, umount_flags) == 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, umount_flags))
        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, umount_flags))
          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");
  if (symlink("/dev/binderfs", "./binderfs")) {
  }
}

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

static void setup_sysctl()
{
  int cad_pid = fork();
  if (cad_pid < 0)
    exit(1);
  if (cad_pid == 0) {
    for (;;)
      sleep(100);
  }
  char tmppid[32];
  snprintf(tmppid, sizeof(tmppid), "%d", cad_pid);
  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", tmppid},
  };
  for (size_t i = 0; i < sizeof(files) / sizeof(files[0]); i++) {
    if (!write_file(files[i].name, files[i].data)) {
    }
  }
  kill(cad_pid, SIGKILL);
  while (waitpid(cad_pid, NULL, 0) != cad_pid)
    ;
}

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)
{
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  int i, call, thread;
  for (call = 0; call < 11; 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 + (call == 0 ? 4000 : 0) + (call == 6 ? 4000 : 0));
      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 (;;) {
      sleep_ms(10);
      if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid)
        break;
      if (current_time_ms() - start < 5000)
        continue;
      kill_and_wait(pid, &status);
      break;
    }
    remove_dir(cwdbuf);
  }
}

uint64_t r[7] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff,
                 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff,
                 0xffffffffffffffff};

void execute_call(int call)
{
  intptr_t res = 0;
  switch (call) {
  case 0:
    memcpy((void*)0x200001c0, "nilfs2\000", 7);
    memcpy((void*)0x20000300, "./file0\000", 8);
    memcpy(
        (void*)0x20000340,
        "\x78\x9c\xec\xdd\x4d\x8c\x5b\x47\x01\x00\xe0\xb1\x77\xbd\xc9\x26\x29"
        "\x71\x4a\x42\x97\x34\xb4\x09\x85\xb6\xfc\x74\xd3\x6c\x96\xf0\x13\x41"
        "\x52\x25\x42\x22\x6a\x2a\xc4\xa5\x52\xc5\x25\x4a\xd3\x12\x11\x82\x44"
        "\x91\x80\xaa\x12\x49\x4e\xdc\x68\x55\x05\x89\x13\x3f\xe2\xd4\x4b\x55"
        "\x10\x12\xbd\xa0\xa8\x27\x2e\x95\x68\xa4\x0a\xa9\xa7\xc2\x81\x03\x51"
        "\x10\x95\x38\x40\x20\x71\x15\xef\x8c\xd7\x9e\xd8\x7d\xb6\xb3\xeb\x67"
        "\xc7\xdf\x27\x8d\xc7\xf3\xe6\x3d\xcf\xbc\xe7\xe7\xe7\xf7\x3b\x13\x80"
        "\xa9\x55\x6d\xbe\x2e\x2f\x2f\x54\x42\xb8\xf8\xfa\xcb\x47\xff\xf1\xe0"
        "\xdf\xe7\x6f\x0e\x39\xd4\x1a\xa3\xde\x7c\x9d\x6d\x4b\xd5\x42\x08\x95"
        "\x98\x9e\xcd\x3e\xef\xdd\x99\x95\xf8\xfa\x7b\x2f\x9c\xec\x16\x57\xc2"
        "\x52\xf3\x35\xa5\xc3\x13\x57\x5b\xd3\x6e\x0e\x21\x9c\x0b\xbb\xc3\xa5"
        "\x50\x0f\x3b\x2f\x5e\x7e\xe9\xcd\xa5\xc7\x8f\x9f\x3f\x76\x61\xcf\x5b"
        "\xaf\x1c\xbc\xb2\x3e\x73\x0f\x00\x00\xd3\xe5\xeb\x97\x0e\x2e\xef\xf8"
        "\xeb\x9f\xef\xdd\x76\xed\xd5\xfb\x0e\x87\x0d\xad\xe1\x69\xff\xbc\x1e"
        "\xd3\x5b\xe2\x7e\xff\xe1\xb8\xe3\x9f\xf6\xff\xab\xa1\x33\x5d\x69\x0b"
        "\xed\xe6\xb2\xf1\x66\x63\xa8\xce\x77\x8e\x37\xd3\x65\xbc\xf6\x72\x6a"
        "\xd9\x78\xb3\x3d\xca\x9f\xcb\xca\xaf\xf5\x18\x6f\x43\xf8\xe0\xf2\x67"
        "\xda\x86\x75\x9b\x6f\x98\x64\x69\x3d\xae\x87\x4a\x75\xb1\x23\x5d\xad"
        "\x2e\x2e\xae\x1c\x93\x87\xe6\x71\xfd\x5c\x65\xf1\xec\xe9\x33\xcf\x3c"
        "\x57\x52\x45\x81\x35\xf7\xef\xfb\x43\x08\xbb\xdb\xc2\x91\x0b\x9d\xe9"
        "\x71\x0b\x87\xc6\xa0\x0e\x43\x86\xc6\x18\xd4\x61\x22\xc3\xe1\xd1\x95"
        "\x75\xad\xb1\xa2\xf4\x79\x1e\x51\x68\x6c\x2d\x7b\x0b\x04\xb0\x22\xbf"
        "\x5e\x78\x8b\x73\xf9\x99\x85\xdb\xd3\xfa\xb4\xd9\xfe\xca\xbf\xfa\x58"
        "\xb5\xfb\xf4\xb0\x06\x46\xbd\xfe\x0f\x54\xfe\x5c\xc9\xe5\x07\xe5\xff"
        "\xe6\xbc\x2d\x0e\x6b\xe7\x4e\x5d\x9b\xd2\x7c\xa5\xdf\xd1\x96\x98\xce"
        "\xaf\x23\xe4\xf7\x2f\xf5\xfe\xfd\xe5\x57\x3a\x3a\x87\xe6\xd7\x23\x6a"
        "\x7d\xd6\xb3\xd7\x75\x84\x49\xb9\xbe\xd0\xab\x9e\x33\x23\xae\xc7\xb0"
        "\x7a\xd5\x3f\x5f\x2f\xee\x54\x5f\x8e\x71\x5a\x0e\x5f\xc9\xf2\xdb\x7f"
        "\x3f\xf9\x77\x3a\x29\xdf\x31\xd0\xdd\x7f\xf2\xf3\xff\x82\x20\x8c\x77"
        "\x08\x1d\xe9\xda\xed\x7c\x56\xa3\xe4\xed\x0f\x30\xbe\xf2\xfb\xe6\x1a"
        "\xe9\xfa\x68\x94\xdf\xd7\x97\xe7\x6f\x28\xc8\xdf\x58\x90\x3f\x5f\x90"
        "\xbf\xa9\x20\x7f\x73\x41\x3e\x4c\xb3\xdf\x7d\xff\xa7\xe1\xc5\xca\xea"
        "\x71\x7e\x7e\x4c\x3f\xe8\xf9\xf0\x74\x9e\xed\xae\x18\x7f\x68\xc0\xfa"
        "\xe4\xe7\x23\x07\x2d\x3f\xbf\xef\x77\x50\xb7\x5b\x7e\x7e\x3f\x31\x8c"
        "\xb3\x3f\x9c\x78\xf2\xd4\x17\x9e\x7e\xea\xf2\xca\xfd\xff\x95\xd6\xfa"
        "\x7f\x23\xae\xef\xe9\x70\xa3\x1e\x7f\x5b\x97\xe2\x08\xe9\x7c\x61\x7e"
        "\x5e\xbd\x75\xef\x7f\xbd\xb3\x9c\x6a\x8f\xf1\xee\xce\xea\x73\x57\x97"
        "\xf1\x9b\xef\xb7\x77\x8e\x57\xd9\xbe\xfa\x39\xa1\x6d\x3b\x73\x4b\x3d"
        "\x16\x3a\xa7\xdb\xda\x6b\xbc\x5d\x9d\xe3\xd5\xb3\xf1\xe6\x63\xd8\x98"
        "\xd5\x37\xdf\x3f\xd9\x94\x4d\x97\xf6\x3f\xd2\x76\x35\x2d\xaf\xd9\x6c"
        "\x7e\x6b\xd9\x7c\xcc\x65\xf5\x48\xdb\x95\x6d\x31\xce\xeb\x01\xc3\x48"
        "\xeb\x63\xaf\xfb\xff\xd3\xfa\xb9\x10\x6a\x95\x67\x4e\x9f\x39\xf5\x68"
        "\x4c\xa7\xf5\xf4\x4f\x33\xb5\x0d\x37\x87\xef\x1b\x71\xbd\x81\xdb\xd7"
        "\xef\xf3\x3f\x0b\xa1\xf3\xf9\x9f\x2d\xad\xe1\xb5\x6a\xfb\x76\x61\xeb"
        "\xea\xf0\xca\xca\x76\xe1\xb5\xf8\x79\x9d\xc3\x97\x5a\xe5\x74\x0e\xdf"
        "\x1f\xd3\xe9\x7f\xee\x5b\x33\xf3\xcd\xe1\x8b\x27\xbf\x7b\xe6\xe9\xb5"
        "\x9f\x7d\x98\x6a\xcf\xfd\xe8\xf9\x6f\x9f\x38\x73\xe6\xd4\xf7\xbc\x19"
        "\xfa\xcd\x57\xc7\xa3\x1a\x83\xbc\x49\x87\x2d\xe3\x52\x1f\x6f\xc6\xee"
        "\x4d\xc9\x1b\x26\x60\xdd\xed\xfd\xf1\xca\x4e\xc0\x23\xa7\xbf\x73\xe2"
        "\xd9\x53\xcf\x9e\x3a\xbb\xff\xc0\x81\xfd\x4b\x4b\x07\xbe\xb8\x7f\x79"
        "\x6f\x73\xbf\x7e\x6f\xfb\xde\x7d\xbb\x73\x25\xd4\x16\x58\x4b\xab\x7f"
        "\xfa\x65\xd7\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00\xe8\xd7\x0f\x8e"
        "\x1d\xbd\xfc\xf6\x1b\x9f\x7f\x67\xe5\xf9\xff\xd5\xe7\xff\xd2\xf3\xff"
        "\xe9\xce\xdf\xf4\xfc\xff\x4f\xb2\xe7\xff\xf3\xe7\xe4\xd3\x73\xf0\xe9"
        "\x39\xc0\x6d\x5d\xf2\x9b\xe3\x64\x0d\xac\xce\x65\xe3\xd5\x62\xf8\x70"
        "\x56\xdf\xed\x59\x39\x3b\xb2\xe9\x3e\x12\xe3\x56\x3f\x7e\xf1\xf9\xff"
        "\x54\x5c\xde\xae\x6b\xaa\xcf\x3d\xd9\xf0\x5a\x8f\x64\xd6\x9c\xc0\x2d"
        "\xed\xa5\xcc\x65\x6d\x90\xe4\xfd\x05\x7e\x3c\xc6\x17\x62\xfc\xeb\x00"
        "\x25\xaa\xcc\x77\x1f\x1c\xe3\xa2\xf6\xad\xd3\xba\x9e\xda\xa7\x68\x6b"
        "\x97\xa2\xa1\x7d\xe0\xc9\x91\xbe\xb7\xb4\x36\xa4\x76\x4c\xd2\xf3\xdf"
        "\x5d\xdb\x75\x6a\xfb\xb2\xb7\x8d\xa0\x8e\xac\xbd\x51\x3c\x4e\x58\xf6"
        "\x3c\x02\xdd\xfd\x73\xaa\xda\xff\xfe\xd7\xea\x8c\x97\x5e\x17\xa1\x77"
        "\x98\x1d\x6d\x79\x3f\x9f\xde\x75\xa2\xd1\x73\x2f\xbd\xdf\x1e\x6c\x00"
        "\xd6\x46\xd9\xfd\x7f\xa6\xf3\x9e\x29\x3e\xfb\xc7\xaf\x6d\xbc\x19\xd2"
        "\x68\x57\x1f\xeb\xdc\x5e\xe6\xed\x97\xc2\x20\xfe\xf2\x76\x67\x7a\xdc"
        "\xfb\x9f\x5c\xef\xf2\xf3\x7e\xfb\x46\x5d\x7e\xd9\xf3\x3f\xea\xfe\x3f"
        "\x5b\xfd\xdf\xf5\xbd\xfd\xcb\x7a\xcc\xab\x0f\x57\xee\x7f\x7f\x71\xe5"
        "\x9d\xb6\x62\xc3\xce\x7e\xcb\xcf\xe7\x3f\xb5\x03\xbd\x7d\xb0\xf2\xaf"
        "\xc5\xf2\xd3\xdc\x3c\x14\xfa\x2b\xbf\xf1\xab\xac\xfc\xfc\x82\x50\x9f"
        "\xfe\x97\x95\xbf\xa9\xcf\xf2\x6f\x99\xff\x5d\xc3\x95\xff\xff\x58\x7e"
        "\x5a\x6c\x0f\x3f\xd0\x6f\xf9\x2b\x35\xae\x54\x3b\xeb\x91\x9f\x37\x4e"
        "\xd7\xff\xf2\xf3\xc6\xc9\xf5\x6c\xfe\x53\xdb\x9e\x1f\x50\xfe\x37\x9e"
        "\xef\x36\xff\x43\x76\xd4\x78\x23\x96\x0f\xd3\x6c\x52\xfa\x99\x1d\x54"
        "\xb6\x1f\xd1\xda\x69\x1f\xbe\xff\xdf\xe8\xdc\xda\xf6\xff\xdb\xaa\x6c"
        "\xb6\x59\xcb\xef\xc3\xf8\x5c\x4c\xa7\x0d\x71\xba\xcf\x21\xef\xef\x64"
        "\xd0\xfa\xa7\xfb\x2b\xd2\xff\xc0\x8e\xec\xf3\x2b\x05\xff\x6f\xfa\xff"
        "\x9d\x6c\x5f\x8a\x71\xd1\xef\x21\xf5\xff\x9b\xd6\xc7\x7a\xfc\xcb\x6f"
        "\x4b\x37\x97\x65\x4a\xd7\xba\x2c\xdb\x3b\x75\x5b\x03\x93\xea\xdd\xa9"
        "\xba\xfe\x37\x11\x61\xe3\x18\xd4\x41\xe8\x3f\x34\x66\x86\x98\xae\xd5"
        "\x4f\x5c\xc9\xf5\x6f\x34\x1a\xeb\x7b\x42\xab\x40\xa9\x85\x53\xfa\xf2"
        "\x2f\xfb\x38\xa1\xec\xf2\xcb\x5e\xfe\x45\xf2\xfe\x7f\xf3\x7d\xf8\xbc"
        "\xff\xdf\x3c\x3f\xef\xff\x37\xcf\xcf\xfb\xff\xcd\xf3\xe7\xe3\x37\xd4"
        "\x2b\x3f\xef\xff\x37\x5f\x9e\x79\xff\xbf\x79\xfe\x3d\xd9\xe7\xe6\xfd"
        "\x03\x2f\x14\xe4\x7f\xb4\x20\x7f\x67\xf7\xfc\xd6\x61\xfb\xbd\x05\xd3"
        "\xef\x2a\xc8\xff\x58\x41\xfe\x9e\x56\xfe\xa1\x8e\x31\x52\xfe\x7d\x05"
        "\xd3\xdf\x5f\x90\x7f\x77\x41\xfe\x03\x05\xf9\x9f\x28\xc8\xff\x64\x41"
        "\xfe\x83\x05\xf9\x0f\xb7\xe5\xb7\xf7\x01\x9d\xf2\x3f\x55\x30\xfd\x9d"
        "\x2e\x3d\x8f\x32\xad\xf3\x0f\xd3\x2c\x7f\x3e\xcf\xef\x1f\xa6\x47\xba"
        "\xfe\xd3\xeb\xf7\xbf\xbd\x20\x1f\x98\x5c\x3f\x7b\x75\xdf\x91\xa7\x7e"
        "\xfb\xcd\xfa\xca\xf3\xff\x73\xad\xf3\x21\xe9\x3a\xde\xe1\x98\xae\xc5"
        "\xe3\xa7\x1f\xc6\x74\x7e\xdd\x3b\xb4\xa5\x6f\xe6\xbd\x11\xd3\x7f\xcb"
        "\xf2\xc7\xfd\x7c\x07\x4c\x93\xbc\xfd\x8c\xfc\xff\xfd\xa1\x82\x7c\x60"
        "\x72\xa5\xfb\xbc\xfc\xbe\x61\x0a\x55\x36\x76\x1f\x1c\xe3\xa2\x76\xab"
        "\x7a\xed\xe7\x33\x59\x3e\x1d\xe3\xcf\xc4\xf8\xb3\x31\x7e\x24\xc6\x8b"
        "\x31\xde\x1b\xe3\x7d\x31\x5e\x1a\x51\xfd\x58\x1f\x47\x5e\xfb\xfd\xc1"
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        "\x2a\x84\xb0\xbf\xcf\xfa\xe4\xe7\x07\x06\xbd\x9f\x3d\x6f\xc7\x6f\x50"
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        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x94\xa6\xda"
        "\x7c\x5d\x5e\x5e\xa8\x84\x70\xf1\xf5\x97\x8f\x3e\x79\xfc\xf4\xde\x9b"
        "\x43\x0e\xb5\xc6\xa8\x37\x5f\x67\xdb\x52\xb5\xd6\x74\x21\x3c\x1a\xe3"
        "\x99\x18\xff\x32\xbe\xb9\xfe\xde\x0b\x27\xdb\xe3\x1b\x31\xae\x84\xa5"
        "\x50\x09\x95\xd6\xf0\xf0\xc4\xd5\x56\x49\x9b\x43\x08\xe7\xc2\xee\x70"
        "\x29\xd4\xc3\xce\x8b\x97\x5f\x7a\x73\xe9\xf1\xe3\xe7\x8f\x5d\xd8\xf3"
        "\xd6\x2b\x07\xaf\xac\xdf\x12\x00\x00\x00\x80\x3b\xdf\xfb\x01\x00\x00"
        "\xff\xff\x07\xae\x0f\x14",
        2726);
    syz_mount_image(/*fs=*/0x200001c0, /*dir=*/0x20000300, /*flags=*/0,
                    /*opts=*/0x20000040, /*chdir=*/1, /*size=*/0xaa6,
                    /*img=*/0x20000340);
    break;
  case 1:
    memcpy((void*)0x20000000, "blkio.bfq.io_queued_recursive\000", 30);
    res = syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x20000000ul,
                  /*flags=*/0x275aul, /*mode=*/0ul);
    if (res != -1)
      r[0] = res;
    break;
  case 2:
    syscall(__NR_mmap, /*addr=*/0x20000000ul, /*len=*/0xb36000ul,
            /*prot=PROT_WRITE*/ 2ul,
            /*flags=MAP_STACK|MAP_POPULATE|MAP_FIXED|MAP_SHARED*/ 0x28011ul,
            /*fd=*/r[0], /*offset=*/0ul);
    break;
  case 3:
    syscall(__NR_ftruncate, /*fd=*/r[0], /*len=*/0xc17aul);
    break;
  case 4:
    memcpy((void*)0x20000040, "/dev/mISDNtimer\000", 16);
    res = syscall(__NR_openat, /*fd=*/0xffffffffffffff9cul,
                  /*file=*/0x20000040ul, /*flags=*/0ul, /*mode=*/0ul);
    if (res != -1)
      r[1] = res;
    break;
  case 5:
    res = syscall(__NR_ioctl, /*fd=*/r[1], /*cmd=*/0x80044940,
                  /*arg=*/0x20001b00ul);
    if (res != -1) {
      r[2] = *(uint64_t*)0x20001c10;
      r[3] = *(uint64_t*)0x20001c68;
      r[4] = *(uint64_t*)0x20001c70;
    }
    break;
  case 6:
    memcpy((void*)0x20000180, "msdos\000", 6);
    memcpy((void*)0x20000100, ".\000", 2);
    *(uint16_t*)0x20007980 = r[4];
    sprintf((char*)0x20007982, "0x%016llx", (long long)r[3]);
    memcpy(
        (void*)0x20007994,
        "\x12\xa4\x09\x5a\x2a\xac\x12\xf0\xbf\xcb\x20\x6d\x98\x2e\x44\x06\x63"
        "\x81\x38\x8d\x27\xf1\x40\x02\xd8\xd7\x43\x1d\x39\x47\xf6\x39\x9c\x7f"
        "\xf9\xf5\x19\x3f\xc0\x39\x86\x53\xe5\xa6\x7b\xbb\x31\x9f\x02\xbf\x4a"
        "\xc6\xf6\xcc\xd5\xac\xbf\xe1\x35\x0c\xc3\xa6\xd2\xd4\x8c\xf6\xc0\x89"
        "\xdd\xf6\x71\x71\xff\xb3\xb1\x59\x88\xe7\xb3\x94\xc5\xda\xf3\xe1\x2c"
        "\xa0\x5e\x4d\xbd\xad\x7e\xdd\x45\xf1\x0c\xbc\x29\x6a\x53\xa5\x30\xd4"
        "\xc2\xd2\x03\xee\x65\x0d\x5f\xff\x3a\x9b\x5a\xae\x78\x79\x4f\xe8\x43"
        "\x27\xe5\x08\x17\x2c\xdd\x72\xee\xff\x5a\xf4\xd6\xdb\x93\x79\xbe\xf2"
        "\x0d\xde\x8e\x64\xb9\x1d\x31\xa8\x4c\xe8\xa7\x59\x8b\xb7\x8c\xc8\x51"
        "\x08\x87\x48\x11\xfc\x65\x0f\x05\x20\xa5",
        163);
    memcpy(
        (void*)0x20007a37,
        "\xf1\xbc\xde\x22\x81\xa8\x43\x92\xf4\xe6\x6f\xf7\xef\x22\xaa\x9a\xf7"
        "\x27\xce\xae\x8a\x8e\xc9\x5f\xc1\xb7\x30\x83\xde\x2d\xe8\x25\xa0\xcb"
        "\x2b\x0b\xe7\x74\xfd\xb3\x36\x50\xd7\xda\xce\x27\xc1\x6b\xc2\x3b\x2f"
        "\x7c\x7f\xb7\x25\x85\x54\x89\x39\x69\x8f\x28\x0d\x13\x8a\xa9\x25\x5a"
        "\x8a\x92\x40\x08\xf8\x47\x7e\x82\xba\x11\xcd\xb1\x1e\xfd\x5c\xa2\xf1"
        "\xab\x04\x9c\xe2\xcc\xc4\x15\xd2\xda\xf8\xda\xc7\x25\x53\x3a\x55\x8d"
        "\x56\x16\x54\xfa\xf5\xe0\x92\x4f\x13\x76\x17\x4f\x37\x4d\x66\x4f\xad"
        "\x4a\x6a\xb2\x4e\xc0\xe8\x22\xe7\xf9\x42\x6e\x8e\x5d\xe1\xfe\x58\x08"
        "\x5a\x0a\xe8\x6f\xd0\x2a\x11\x8b\x93\x65\x96\x18\x34\xd4\x62\x08\xb9"
        "\xfb\x4c\xb1\xa1\xfa\x96\x2a\x8b\x00\x00\xdc\x2e\x31\x93\x79\xea\x1e"
        "\x5a\x07\xae\xb3\xf9\xcd\x4e\x64\x8d\xf4\xdd\x18\xe6\x25\x3e\x7b\x23"
        "\x10\xa7\x8d\x63\xa2\x32\xa2\xa4\x07\x58\x02\x7a\x47\x2e\x7d\x26\x3e"
        "\xf5\x67\xa8\x41\x66\xf2\x6e\xe5\x6e\x70\x1c\x63\xa8\x86\x37\x87\x88"
        "\xa5\x12\xf2\x8e\xde\xc0\x86\xb1\xc0\x82\x3c\x02\x88\x40\xee\xaf\x3f"
        "\x5d\x87\x69\x02\x3c\x01\x21\x86\x14\xf4\xfa\x40\xbe\x98\x92\xe7\xa2"
        "\x85\xac\x63\xf7\xf9\x7a\xaa\x5b\x8e\xcc\x86\xe2\x8c\x61\x93\xbc\x21"
        "\xa2\xb8\x33\xe5\xc9\xc7\x03\xc4\xcf\xa0\x63\xdd\x34\xc2\x45\x70\x6b"
        "\xde\x3d\x7a\xc3\x73\xab\x04\xb6\x2b\x41\x11\xb5\x9e\xab\xd4\x36\xdd"
        "\x97\xe7\x88\xa3\x6e\xf2\x5b\xad\x99\xbe\x2a\xa9\x24\x94\x95\x58\xc8"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00",
        353);
    sprintf((char*)0x20007b98, "0x%016llx", (long long)-1);
    *(uint16_t*)0x20007baa = r[2];
    sprintf((char*)0x20007bac, "%020llu", (long long)0);
    memcpy(
        (void*)0x20007bc0,
        "\x9a\x7f\x40\xad\x4c\x71\x45\x90\x3a\x86\x8b\x90\x20\xe1\xe8\x89\x9e"
        "\xd5\x74\x7d\xb2\x30\x04\xfc\x9d\x24\x89\x00\xab\xca\xa6\xb0\x65\xcf"
        "\x08\x00\x93\x0a\x71\xdc\xd8\xb8\x95\x5d\x93\xc7\x8b\x9d\x4e\x5e\x06"
        "\xd8\xd5\xc9\xac\x9b\x75\xd1\x77\x75\x4d\x6e\xba\x23\xe6\xd2\xbe\x54"
        "\x6c\x0d\xfe\xcd\xf6\x1b\xaf\x73\x29\x50\xa5\x72\x9c\x01\xfb\xdc\x11"
        "\xe3\x6c\xb4\x11\xbe\x20\x0a\x91\x35\x65\x7a\xcd\x97\xd2\x1e\xe4\x6a"
        "\xac\x31\x3e\xbd\xdd\xd9\x26\x5a\xf1\x65\x58\xdd\x3e\x5b\xa4\x83\x66"
        "\x59\xa6\xab\xfe\x08\xaa\xd8\x42\x76\xac\xf9\x49\xbd\xaa\x34\xbd\xf7"
        "\xf7\xb2\xdf\xb2\xfe\x8b\x9d\x6d\x22\x5d\xce\xce\xbe\xb6\xe1\x5f\x64"
        "\x99\x94\x72\x88\x42\xbd\x99\xfc\x94\x89\x7d\x24\x31\x5a\xc2\xd1\x7b"
        "\xf6\xc2\xac\xfb\xfa\x84\x64\xd8\x0f\x36\x30\x4f\x88\xb9\x06\xb7\x8a"
        "\xb3\x59\xbe\x34\x79\xdb\x5b\x0e\x75\x55\xf0\x44\x16\x80\x7c\x22\x02"
        "\xd6\x55\x1f\x24\x25\x44\x0b\xe7\x41\xdb\xe0\x53\xe0\xbf\xeb\x84\x56"
        "\x23\xe7\x22\xa9\x29\x38\x43\xf1\xcf\x0a\x71\x11\x9d\xca\xdf\x7e\x35"
        "\x3a\xf4\xda\x52\xae\xd3\x08\x6d\x6e\x5a\x09\x57\x74\x24\x8b\xe9\xa1"
        "\xb1\x41\x8d\xec\x1c\x03\xa2\xcb\x0e\xce\x08\x40\xeb\xea\xaf\x7b\x67"
        "\x86\x7d\xa4\x59\x43\xb7\x00\xe2\xd6\xda\xd7\x75\xae\x6f\x33\xe5\x5a"
        "\xa8\x6c\xa8\x4c\x33\x6c\x91\xe3\xb7\xd7\x22\x4f\x7a\x9a\x10\xd5\xb4"
        "\x5a\x6c\xe0\x76\x9d\x87\x54\x15\xbe\xa1\x36\xb5\x50\x8e\x5e\x0a\x88"
        "\x29\x07\x92\xda\x3b\x11\xb2\x28\x4a\x3d\x75\x7c\x30\x1c\xec\x78\xb5"
        "\x5d\x3f\xcf\xa0\x73\x61\x5c\xcb\x08\x9f\x66\xc5\xb9\xa5\xc8\x4f\x6c"
        "\x1b\xb7\x8c\x33\x70\xc4\x68\x7e\xab\x26\x07\x11\xfa\x05\x52\x56\x87"
        "\xc7\x70\x9e\x15\xcd\xde\xa0\x61\xf7\x07\x98\xcb\xf9\x40\xad\x92\x9e"
        "\xb8\x0f\x33\xad\x8b\xb4\xfc\xd3\x22\xdd\x05\x58\xf1\x11\xd7\xd0\x13"
        "\x51\x14\x79\x76\xb4\x25\xa2\x7e\x57\x34\x02\x49\x00\x55\x05\x4c\xf3"
        "\xd8\x0b\xeb\xde\x6a\x89\xf3\x08\x61\x70\x63\x37\x40\xf0\x87\x80\xaa"
        "\xc3\xa7\x3f\x17\xea\xed\xa8\xde\xb6\x42\xc2\x88\x79\x62\x59\x6b\x4d"
        "\x78\xc0\xff\xff\xb2\x8d\x0e\x64\x07\x3b\x06\x41\xf8\x9c\xf8\x3a\x69"
        "\xaf\xaa\xea\x03\xba\x60\x70\x83\x8f\xdb\xda\xcc\xb8\x16\x30\xa6\xfd"
        "\xaa\x77\xfc\x10\x14\x60\x13\xb9\xfd\x79\xe9\x65\xa3\x20\xda\xf8\x1c"
        "\x1a\x51\xf0\x32\xa3\xf4\x62\xf2\x74\x0e\x57\x9e\xb1\x16\xca\xd8\x0b"
        "\x4e\x23\x33\x26\xbf\x94\xfe\xa5\x21\x84\x51\x7a\xcc\xf6\x08\xb1\xfb"
        "\xfb\x39\x59\x42\x86\x98\x41\xb9\xca\x0f\x31\x4b\xef\xf6\xb2\xdc\x0a"
        "\x74\xd7\x59\x90\x12\x27\x4b\x24\x77\x5f\x03\x82\xe7\x29\x07\xc1\xf0"
        "\xc5\x71\xb9\x94\xf0\x48\xc0\x26\x6f\xeb\x77\x5d\x89\x3f\xec\x84\xe5"
        "\x73\x3c\xd6\x6a\x96\xcd\x45\xb6\x0f\x63\x74\x3b\x17\xb0\x5d\x99\xc4"
        "\x27\xa2\xd0\x0a\x27\xfe\xf1\x7c\xad\xf1\x28\x05\x9a\x2e\x22\x7b\x80"
        "\x70\x17\x55\xb0\xbc\x70\x6f\x32\x25\x5c\x8c\xd6\x19\xfa\x99\x5c\xc7"
        "\x64\x9f\x28\x33\x73\x61\xa6\x2c\xff\x46\x66\x9f\xa4\xcf\x09\x5a\x2d"
        "\x14\x89\x87\xa9\xfa\xfa\x6e\x1f\xb9\xf5\x9b\x5a\xc5\xff\x10\xa4\xc6"
        "\x2e\x01\x87\xa3\xc7\x5a\x98\x3f\x7f\x52\x11\x14\x2c\x6c\x09\x17\x0a"
        "\x13\xe2\x9c\x20\x44\xe5\x56\x8b\xda\x80\x55\xce\xe4\x72\x2e\x44\x5e"
        "\x83\xea\x01\x30\x7c\x42\xcb\xe6\x3a\x5b\xc5\x29\xe1\x20\x0e\x58\x74"
        "\xf7\x50\x02\x75\xab\xac\xd6\xcc\x0e\x3b\xf8\xfd\x38\xab\x7b\xab\x39"
        "\xf5\x4d\x18\x0d\x60\x89\x2e\x2e\x3a\x71\x3a\x3e\x65\x4c\x89\xb8\xe9"
        "\xba\x44\x74\x90\x99\x91\x84\x45\x14\xc0\x4b\x65\x5c\x66\xcc\xd6\xf2"
        "\xa1\x7e\x29\xff\x69\xd3\x43\xeb\xac\x7a\xc5\xe1\x51\x0a\xd4\xff\x52"
        "\xe6\xa9\x32\xa9\x7b\xb0\xd8\x14\x25\x9d\xa6\x54\x50\x22\x15\x2d\xd6"
        "\x3f\x06\x21\x9a\x1d\x66\xec\x22\x78\xb6\x94\x87\x6e\xd6\x19\x5b\x05"
        "\x43\xb8\xc9\x28\x9b\x84\x38\xe8\xee\x57\xdd\x38\xbc\xdb\x04\x5a\x6f"
        "\xc4\xce\xde\x28\xef\xfa\xa0\x35\x4a\xfb\xd4\x19\x0f\xcb\xcc\xd9\xa0"
        "\xe9\x15\x08\xe4\x39\x9e\x0e\x30\xa0\xbf\xde\xdc\xc1\x94\x54\xb6\xdd"
        "\x7c\x27\x85\xa6\xe4\xfe\x74\xa0\xec\xe1\xd6\x83\xad\x07\xd7\x6e\xaf"
        "\xec\x02\xfb\x0d\x88\xde\xbf\xea\xcd\x35\x31\x41\x31\x85\xda\x0f\xfa"
        "\x4f\xb9\xb5\xe6\xd5\xa9\x16\xf7\xbb\x5d\x51\xef\xc8\xab\x61\xe4\x95"
        "\x3f\xc6\xb2\xd1\xe6\x70\x76\x9f\x3c\xa5\x6d\x51\xb8\x04\xce\xb1\x18"
        "\x27\x8a\xcc\x90\x42\x2e\x1f\x51\xe4\x48\xa2\x7d\x2f\xe4\xf9\x3c\x88"
        "\xcf\x7c\x61\x48\x47\x4b\xf6\x50\x90\x2d\xd6\xdd\x96\x54\x10\x44\x11"
        "\x3d\x24\x4c\xf9\x38\x15\x0e\xc4\x26\xe7\xed\x63\xe1\xf1\x53\xbb\xe3"
        "\x28\xf4\x23\x25\x52\xb1\x04\xc8\xde\xe6\x0b\x0c\x4e\x4c\x25\xf2\x60"
        "\x5e\x97\xcc\x6f\x42\x63\xd3\x2e\x83\x40\xbe\x2d\x16\x71\x37\x68\x23"
        "\x73\xae\x4c\xd5\x01\xfd\xc9\xc5\x35\x9b\x40\xf5\x28\x03\xa5\xe4\xc0"
        "\xe0\x4a\x5d\xe0\x41\x2c\x5c\xbd\x4d\x05\xe6\x13\x5a\x12\x09\xd4\xb2"
        "\xdf\xf5\x0d\x39\xe4\x81\xf1\xd1\xb0\x1e\xd7\x10\x04\xfb\x0c\x18\xe7"
        "\x36\xaf\x8a\xb1\x76\xf8\x33\xa4\x39\xa8\x5c\x91\x32\xe6\xd2\x29\x6f"
        "\x66\x57\x71\xc6\xa2\x84\xea\xdc\x08\xc9\x4f\xfa\x52\x0d\xcc\x37\xfd"
        "\x64\x26\xc1\x52\x36\x46\x99\x51\x4b\x15\xd4\xdf\x67\x32\xff\xf3\x98"
        "\x34\xe8\xba\x29\x68\x8b\x19\xdb\x27\xa9\x70\xd9\xd7\xfb\xee\x97\x3c"
        "\x76\xbe\xe0\x4f\xb6\x16\x49\x63\x96\x9e\xbd\xe0\xf7\x85\x60\x67\x81"
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        "\xb0\x53\x45\x2d\xed\x5c\xaa\x20\x46\x18\x81\xd7\x8d\x82\x35\xe9\x86"
        "\xba\x8b\x77\xe8\x36\x01\x65\x5d\x26\x50\xbf\x1b\x64\xce\x17\xc7\x53"
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        "\x6a\x70\x63\x5b\xda\xc8\xaf\x24\x36\x7a\x24\xce\x2f\xe2\xa7\x2e\xf2"
        "\xb0\xe5\x6f\xf8\xdc\x62\xa8\x29\x46\xf8\x6f\x9b\x6b\x14\x18\xa8\x9b"
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        "\xde\x6f\x9d\x4a\x19\x9c\x39\x07\xed\x87\x99\xf2\x31\xf5\x4d\xd8\x34"
        "\x7c\x71\xd8\x29\xff\x8d\xdc\x5d\x96\xb5\xaa\xc2\xfe\x58\x65\x2c\x81"
        "\xff\x7f\x54\xe2\x56\x81\x19\xdf\xf2\x76\x3e\xf4\x35\xaa\x42\x06\x30"
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        "\x3e\x65\xfe\x54\x1f\x38\xcb\x96\xb1\x32\x66\x6f\x99\x90\x02\xe8\x9c"
        "\xd1\x89\x6c\xa5\x8c\x2e\x63\xb8\x73\x82\xe1\xa6\xc1\xee\x9a\xfa\x56"
        "\xcf\x3b\xa9\x23\xfa\x9c\x98\x9e\x20\xbf\xf3\x13\xf3\x72\x52\x63\x2f"
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        "\xaa\x81\xfb\x2a\xc1\xb6\x3c\x42\xdd\xa0\x6f\x20\xce\x8c\x9d\x00\x3e"
        "\xb3\xef\xed\x79\x31\xde\xf3\x42\xfb\x87\x4f\xce\x92\x76\x3f\x6f\x47"
        "\x7c\x7f\x58\x9b\x75\xd2\x12\x94\x19\xfc\x4c\xb7\xa8\x89\x3a\x1d\x3f"
        "\x94\x53\x3e\xd9\xfd\xf9\xf2\x1f\xc2\x54\xfd\x80\xaa\x74\x75\x08\x33"
        "\xd3\x90\x32\x7a\x21\x07\xe7\x61\x24\x09\x28\xd3\x5a\x36\xc5\xea\xca"
        "\x61\xfd\x84\x81\x16\xb8\xdd\x7e\xc8\x15\x79\x28\xbc\x2d\xd8\x7f\x77"
        "\x56\xaa\x51\x7c\xf6\xa6\x1d\x20\x09\xfd\x4b\xa0\x57\x9c\xa3\xb3\x12"
        "\x9c\xfd\x54\x03\x54\x6f\x5a\xb6\xd0\x57\x57\x99\xa0\x08\xfc\x67\xda"
        "\x96\x58\x42\x76\x36\xd8\xf8\x06\xd9\xb8\xca\xd6\x4a\xee\x43\x8d\x0a"
        "\x9b\x45\x95\x7f\x31\xa5\xaf\xe3\xed\x89\x4a\xdd\x9a\xca\xdf\xd3\x47"
        "\x24\x60\x99\xc6\xff\x0b\x4e\xc6\xf1\x9a\xc6\x15\x57\xda\xf8\x73\x9e"
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        "\x0b\x77\x4b\x65\x76\xdf\x30\x14\xdc\xc9\xe9\x1b\x2c\xd1\xf0\x40\x3a"
        "\x4f\xca\xa6\x62\x7b\x22\x68\x2b\xb5\x4f\x92\x15\x0c\x29\x17\xac\xae"
        "\xe1\x97\x2b\x2b\x03\xbc\x2b\xd3\x7f\xdb\x9e\x73\x52\xc6\x54\xd9\x4e"
        "\xf1\x96\xb7\x22\x9e\x4d\xa5\xee\x62\xb7\xd3\x95\xec\xdd\x51\x77\xf2"
        "\x56\x32\x42\xea\x49\xff\x78\x15\x1a\x4a\x81\x6a\x94\xe8\x9b\x03\xf4"
        "\x1c\x7e\x66\x84\xf8\xbe\x3e\x58\x02\xe9\x33\x8e\x7c\xbd\x3b\x43\xf7"
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        "\x90\x7d\xb0\x79\x92\xa2\xde\x74\xe4\x59\xf3\xae\x8e\xe6\xad\xae\x20"
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        "\x3d\x3f\x82\x88\x6e\xa5\x73\x64\x1b\xf1\x60\x65\xef\xbc\x25\x71\x8c"
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        "\x9d\x3f\xad\x78\x74\x12\x72\xb0\x8b\xf7\xae\xc3\xf3\xc7\x77\x42\x8d"
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        "\xbc\x68\xa9\x98\xd8\xba\x17\x9e\xd5\xf7\x56\xc2\xef\xd8\xa7\xac\xc0"
        "\xe3\xf0\x80\x93\xbb\x4a\x83\xd3\x7f\x15\xb4\xfe\x07\xc9\x08\x58\x05"
        "\x8a\xd1\xff\x0e\x21\xbb\x7b\xf4\x36\x30\x79\xc5\xd4\x52\xdb\xa5\x97"
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        "\xda\x02\x36\x62\x99\xd3\xdd\x93\x94\x34\x66\xbc\xee\xb2\xf9\xe4\x65"
        "\xad\xcc\xc0\x8e\x1a\x02\xc3\xac\x01\x81\x59\x31\x62\x7e\xd3\x27\xe0"
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        "\x0d\x5b\xfb\xde\x7c\xdc\x92\xc4\xcb\x16\xa5\x79\xf3\x5f\x07\xda\xfc"
        "\x87\xce\x6c\xe4\xde\x7b\xf9\xe8\xff\x0e\x80\xb8\x1c\xda\xb8\xf2\x16"
        "\x4a\x25\xa0\xa6\x92\x96\x79\xce\x9a\xe0\xdc\x2a\xc7\xed\x41\xa7\x87"
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        "\x2b\xba\x5f\xb6\x75\xc0\xb2\xc9\x4d\x2f\xaa\xc1\x60\xf1\x1b\x7b\x96"
        "\xfc\x96\x41\x5a\xca\x8a\x47\xfa\x03\x65\x8b\x8a\xfa\x24\xb6\xbd\x97"
        "\xf7\xdb\xee\xad\x9a\xe5\xf7\xec\x1c\xb0\xd0\x00\x05\x5f\x41\xa5\x04"
        "\x3c\x6c\x4c\x97\x21\x23\x98\xb1\x68\xb5\xcb\x9e\xe6\x50\x72\x6e\xab"
        "\xcc\x31\xb6\x71\x2e\x81\x5f\xda\xae\x77\x88\x53\x50\x88\x4f\xb3\x6d"
        "\x6d\x54\x44\xd5\xe5\x50\x0a\x7d\x63\x6d\x4e\xce\xd1\x4b\x9d\x41\x1c"
        "\x76\x5b\x36\xa4\xbe\x06\xca\x9b\xe2\x96\x5d\x6d\x6c\x06\xc3\xb6\xbc"
        "\xb3\x8b\xab\xeb\x29\x99\xee\x71\x29\x5d\x48\x92\x6b\xf6\xe3\x93\x63"
        "\xfa\xbf\x74\xde\x5e\x57\xaa\x0b\x59\xf9\xdd\xde\xca\x14\x2d\x0c\x50"
        "\xab\x7f\xf1\x98\x19\x6c\x69\xc9\x71\xe6\xab\x59\x12\x20\xf4\xe4\x2d"
        "\x65\x25\xe2\xdb\xd9\x9b\x6c\x57\x94\x9c\x85\x4e\x4e\xe0\xe4\x58\x1f"
        "\x9e\x3e\x16\x0b\x3f\x66\xb0\x1f\x23\xf4\xd0\x47\x2c\x0a\x1f\x30\x78"
        "\x37\xac\x8d\xac\x0a\x25\x7d\x09\xab\x82\x97\x51\x48\xdc\xd7\x64\xfe"
        "\x63\x59\xa5\xf2\x1b\x9c\xbe\x2a\xe7\xb9\xb2\x77\x48\x9a\x8b\x32\x85"
        "\xb8\x28\x9a\x84\xff\x85\x45\x08\xb4\x48\x8f\xfc\xf6\x8f\x47\xec\x7a"
        "\x5c\x18\xa8\xc3\xd0\x6e\x26\xb3\x2f\x75\x4a\xc7\x4e\xa8\xe9\x3a\x55"
        "\x41\x47\xfd\x3b\x3d\xaf\x1f\xbe\x92\x4e\x2e\x38\x9c\xac\x13\xa5\xf8"
        "\x0f\x3a\x21\xdb\xd2\x50\xd3\x91\x7f\x7b\x5a\xcf\xc7\x39\xa6\x3f\x2b"
        "\x3d\x6b\x3f\x09\x9e\xfb\x4b\xe7\xa8\x42\x21\x5c\x89\xfc\x87\xbd\x85"
        "\x50\xd1\x1b\xa2\xa4\xaf\x0f\x11\x1a\xb1\x24\x50\x3b\x26\xfe\xea\xe3"
        "\xbe\x3e\xe2\x41\x68\xdd\x45\x53\xa2\x26\xb9\x16\x8e\xdb\x11\xc3\xe6"
        "\x1b\xc8\x50\xad\xf9\x95\xb4\xd6\xf1\xaa\xce\x6d\xb0\xb9\x1f\x80\x5c"
        "\x3d\x17\x89\xa3\xe6\xb4\x70\xe5\x47\x09\x68\xf4\x29\xd5\xb0\x5c\x8f"
        "\x76\xca\x29\x81\xe3\x7f\x5b\xde\x4a\xd0\x0a\x09\x75\x5c\x76\x77\x4e"
        "\xad\x7d\x93\xf3\xf4\x12\x55\xb1\xd5\x61\x52\xe3\x69\x9b\x13\x3b\x2e"
        "\x0b\x27\x74\x27\xc9\x92\x32\x3d\x1b\x4d\x8c\x43\x84\x34\xe9\xe9\x01"
        "\xdd\xd4\x37\x88\xf8\x0c\xb9\xa9\x75\xe9\xdd\x16\x71\xce\x16\xbe\x5f"
        "\xf8\x03\x3d\x5d\xa8\x24\xf0\x0f\xd7\x8b\x54\x0e\xdb\xcd\x69\xa2\xe9"
        "\xaf\xf0\x3e\x31\xaf\x9a\xfe\xfb\x80\x94\x34\xf5\x2b\x4a\x12\x39\xfd"
        "\xd2\x41\xed\x3a\x26\x82\x58\xad\xdd\xe1\x9d\x17\x24\x15\x5a\x1a\x4c"
        "\x87\x7b\xd5\x9b\x06\x59\xb7\xa7\x86\x88\x6f\x6f\xfc\xb5\x99\x9d\x1f"
        "\x9c\x00\x7d\x61\x50\x20\x92\x6f\x71\x65\xa9\xdd\xd4\xaa\xa3\xc7\xb6"
        "\x31\xd3\x0c\xc9\x51\xe3\x28\x13\x1d\x99\x28\x2a\xc0\x6a\x18\xf8\x83"
        "\x73\x09\x23\x20\xea\x53\x08\xf0\x6c\x37\x6e\x71\x1a\xec\xda\x4c\xd1"
        "\xc2\xb6\x39\xd9\xea\x7a\x26\x13\xd4\xe9\xea\xa9\xa0\xef\x72\x77\x4f"
        "\xde\xc6\x22\xf7\xd1\x31\xb4\x51\x35\xd5\x77\x89\x7b\xf6\x86\xb4\x60"
        "\xa3\x71\x08\x30\x70\x13\x9e\xa5\x44\xbd\xa1\x50\x12\x25\x1d\x6c\x8e"
        "\x71\x63\xc2\x54\x12\x84\x1f\xae\xfb\xa7\x67\x65\x64\x8c\xa7\xcd\x1b"
        "\x42\x34\x03\xa6\x54\xb6\xb5\x75\x45\x88\xae\x6c\x30\x96\x21\x47\x7d"
        "\xb2\x0f\x7c\x92\x36\xaf\x1e\x42\x2e\xbd\x3f\xb6\xd6\xa7\x12\xe7\xa6"
        "\xd0\x0d\x58\x41\x6b\x7d\x65\xa5\x3a\x25\x14\xbf\x51\xbe\xdf\xe9\x20"
        "\x7f\x16\xa4\xd7\x94\x18\x60\x03\x89\xb9\x8e\xa8\xb9\xe0\x6b\x8d\xa7"
        "\x08\xa8\x6f\x19\x1e\x56\x79\x25\xaf\x39\xa0\x9a\xc9\xfd\x79\x02\xe8"
        "\xf8\xe7\x75\x67\xba\xf1\xb7\x5c\x05\xba\x1e\xb7\x08\x9b\x42\x48\x01"
        "\x40\x5a\xfc\x98\x2a\x8d\x79\xc8\x0f\xad\xa1\x84\xa1\xab\x3b\xab\x52"
        "\x6a\x3b\x0a\x5e\x20\xd2\xdc\x6b\xcd\xd2\xc5\xcb\x7c\x49\xf7\x35\xf3"
        "\xe8\xf4\xd3\x6a\x38\x8c\xa8\x05\x87\x6a\xe0\x8f\x0e\x3a\xcc\xa5\xdd"
        "\x86\x4c\x1f\xa1\x55\x20\x68\xbf\x79\x90\x95\x22\x14\x80\x37\x4f\xd2"
        "\xdc\xae\xdd\xb7\x4b\xe9\x34\x70\xef\xf4\xfe\x27\x8e\x19\x0f\x0a\x13"
        "\x1f\x32\x34\x0a\xda\x9c\xca\x51\x8a\xf7\x69\xf4\x29\x43\x87\x5f\x4c"
        "\x57\x07\xbe\xee\x21\x79\x77\x1d\xa2\x1c\xd6\x64\x05\xb9\x97\x36\x48"
        "\xbd\x04\x7a\x51\x6d\x1c\xf9\x02\xfa\x1f\x0f\xcd\xcb\xc3\xf4\xc1\xf2"
        "\x0f\xc2\x2f\x9a\x7e\x9f\x4c\x3a\x52\x57\x63\x99\x60\x4c\x46\xf8\x3e"
        "\xde\x44\xf5\x42\xd0\x6d\x54\xe6\xe8\xa1\xe6\x93\xa2\xcf\xcb\xb1\x6c"
        "\x17\x8d\x1b\xac\xe9\x76\x13\x3e\x72\xcc\x45\x33\xbd\x02\xb1\xc4\xec"
        "\x2c\xc2\x20\x97\x43\x5a\xff\x5a\x68\x2c\xa7\x22\x74\x14\x89\x54\x50"
        "\x83\x15\x60\xfa\x68\x24\x93\xf4\x81\x4c\xe8\xfb\xdb\x19\x0f\x8c\xe2"
        "\xb5\x33\xed\x95\x82\x63\x85\x11\xbd\xa9\x3a\xea\xe5\xd0\x69\x0f\x74"
        "\x5b\x78\x8d\xb6\x22\x86\x4b\xa3\xfb\x60\x95\x2f\x11\x94\x27\xfb\xe6"
        "\x67\x54\xc5\xc0\x38\xc5\xfb\x2c\xb8\x7c\x32\x6d\x65\x86\x2e\x35\x3c"
        "\x14\x95\x0b\xd1\xfa\x7c\x70\xe3\x63\x23\xe9\xcf\x90\xc8\x1f\x62\x75"
        "\xe5\x9c\x79\x26\xac\xac\x15\x60\xa0\xb6\xbb\xc7\xa8\x50\x81\x7f\x2e"
        "\xff\xa1\x9d\x48\x53\x15\xa2\x19\xd4\x9e\x29\x3f\x87\x12\x78\x29\x4d"
        "\x02\x76\x5c\xf7\x2c\xaa\x2f\x43\x8d\xe3\x33\x7e\xd2\x05\xbf\x68\xff"
        "\x6d\xda\xaa\x5e\x4b\x80\xde\x5f\xba\x02\x2d\xfc\xf9\xcf\x07\x4a\x31"
        "\x96\x78\xdf\x11\xeb\x77\xb3\xef\x66\xe5\x12\xb6\x7b\xa5\x18\x22\x65"
        "\xa6\x0e\xaf\x45\x76\x91\xe9\x73\xd2\x3c\xba\xf6\x00\x05\x37\xf8\x86"
        "\x69\x50\x74\xeb\xb6\x16\xf9\xcd\xad\x9d\xe7\xc6\xfe\x9e\xcf\xbd\x13"
        "\xd5\x37\xd6\x4c\x34\xa7\xc9\x0c\xa5\x6b\x50\xe6\x0d\x6a\x70\x67\xe3"
        "\x91\xe6\x35\x61\x79\x3e\xdf\x6e\xd3\xc2\xee\xb8\x55\x59\x09\xa5\x9c"
        "\xe7\x3d\xa1\xf0\x96\xd4\x1f\xb4\x2d\xe4\x44\x94\x12\x83\x24\xa9",
        4096);
    *(uint8_t*)0x20008bc0 = -1;
    *(uint16_t*)0x20008bc1 = -1;
    syz_mount_image(
        /*fs=*/0x20000180, /*dir=*/0x20000100,
        /*flags=MS_I_VERSION|MS_PRIVATE|MS_SYNCHRONOUS|MS_STRICTATIME|MS_REMOUNT|MS_RELATIME|0x240c*/
        0x1a4243c, /*opts=*/0x20007980, /*chdir=*/0, /*size=*/0,
        /*img=*/0x20000000);
    break;
  case 7:
    memcpy((void*)0x20003bc0, "/dev/capi20\000", 12);
    res = syscall(__NR_openat, /*fd=*/0xffffffffffffff9cul,
                  /*file=*/0x20003bc0ul, /*flags=*/0ul, /*mode=*/0ul);
    if (res != -1)
      r[5] = res;
    break;
  case 8:
    res = syscall(__NR_epoll_create, /*size=*/1);
    if (res != -1)
      r[6] = res;
    break;
  case 9:
    syscall(__NR_epoll_pwait, /*epfd=*/r[6], /*events=*/0x20008040ul,
            /*maxevents=*/1ul, /*timeout=*/0x401, /*sigmask=*/0ul,
            /*size=*/0ul);
    break;
  case 10:
    *(uint32_t*)0x200000c0 = 0;
    *(uint64_t*)0x200000c4 = 0;
    syscall(__NR_epoll_ctl, /*epfd=*/r[6], /*op=*/1ul, /*fd=*/r[5],
            /*ev=*/0x200000c0ul);
    break;
  }
}
int main(void)
{
  syscall(__NR_mmap, /*addr=*/0x1ffff000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1,
          /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x20000000ul, /*len=*/0x1000000ul,
          /*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/ 7ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1,
          /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x21000000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1,
          /*offset=*/0ul);
  setup_sysctl();
  setup_cgroups();
  const char* reason;
  (void)reason;
  use_temporary_dir();
  do_sandbox_none();
  return 0;
}