// https://syzkaller.appspot.com/bug?id=56bb7262d36e541407f3ba2df289c8921f5e3470
// 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 <signal.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/mount.h>
#include <sys/prctl.h>
#include <sys/resource.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <sys/swap.h>
#include <sys/syscall.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/uio.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>

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

#ifndef __NR_bpf
#define __NR_bpf 321
#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);
}

#define BITMASK(bf_off, bf_len) (((1ull << (bf_len)) - 1) << (bf_off))
#define STORE_BY_BITMASK(type, htobe, addr, val, bf_off, bf_len)               \
  *(type*)(addr) =                                                             \
      htobe((htobe(*(type*)(addr)) & ~BITMASK((bf_off), (bf_len))) |           \
            (((type)(val) << (bf_off)) & BITMASK((bf_off), (bf_len))))

typedef struct {
  int state;
} event_t;

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

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

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

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

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

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

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

struct nlmsg {
  char* pos;
  int nesting;
  struct nlattr* nested[8];
  char buf[4096];
};

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

static void netlink_attr(struct nlmsg* nlmsg, int typ, const void* data,
                         int size)
{
  struct nlattr* attr = (struct nlattr*)nlmsg->pos;
  attr->nla_len = sizeof(*attr) + size;
  attr->nla_type = typ;
  if (size > 0)
    memcpy(attr + 1, data, size);
  nlmsg->pos += NLMSG_ALIGN(attr->nla_len);
}

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

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

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

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

static int netlink_query_family_id(struct nlmsg* nlmsg, int sock,
                                   const char* family_name, bool dofail)
{
  struct genlmsghdr genlhdr;
  memset(&genlhdr, 0, sizeof(genlhdr));
  genlhdr.cmd = CTRL_CMD_GETFAMILY;
  netlink_init(nlmsg, GENL_ID_CTRL, 0, &genlhdr, sizeof(genlhdr));
  netlink_attr(nlmsg, CTRL_ATTR_FAMILY_NAME, family_name,
               strnlen(family_name, GENL_NAMSIZ - 1) + 1);
  int n = 0;
  int err = netlink_send_ext(nlmsg, sock, GENL_ID_CTRL, &n, dofail);
  if (err < 0) {
    return -1;
  }
  uint16_t id = 0;
  struct nlattr* attr = (struct nlattr*)(nlmsg->buf + NLMSG_HDRLEN +
                                         NLMSG_ALIGN(sizeof(genlhdr)));
  for (; (char*)attr < nlmsg->buf + n;
       attr = (struct nlattr*)((char*)attr + NLMSG_ALIGN(attr->nla_len))) {
    if (attr->nla_type == CTRL_ATTR_FAMILY_ID) {
      id = *(uint16_t*)(attr + 1);
      break;
    }
  }
  if (!id) {
    errno = EINVAL;
    return -1;
  }
  recv(sock, nlmsg->buf, sizeof(nlmsg->buf), 0);
  return id;
}

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

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

static void netlink_add_device(struct nlmsg* nlmsg, int sock, const char* type,
                               const char* name)
{
  netlink_add_device_impl(nlmsg, type, name, false);
  netlink_done(nlmsg);
  int err = netlink_send(nlmsg, sock);
  if (err < 0) {
  }
}

static void netlink_add_veth(struct nlmsg* nlmsg, int sock, const char* name,
                             const char* peer)
{
  netlink_add_device_impl(nlmsg, "veth", name, false);
  netlink_nest(nlmsg, IFLA_INFO_DATA);
  netlink_nest(nlmsg, VETH_INFO_PEER);
  nlmsg->pos += sizeof(struct ifinfomsg);
  netlink_attr(nlmsg, IFLA_IFNAME, peer, strlen(peer));
  netlink_done(nlmsg);
  netlink_done(nlmsg);
  netlink_done(nlmsg);
  int err = netlink_send(nlmsg, sock);
  if (err < 0) {
  }
}

static void netlink_add_xfrm(struct nlmsg* nlmsg, int sock, const char* name)
{
  netlink_add_device_impl(nlmsg, "xfrm", name, true);
  netlink_nest(nlmsg, IFLA_INFO_DATA);
  int if_id = 1;
  netlink_attr(nlmsg, 2, &if_id, sizeof(if_id));
  netlink_done(nlmsg);
  netlink_done(nlmsg);
  int err = netlink_send(nlmsg, sock);
  if (err < 0) {
  }
}

static void netlink_add_hsr(struct nlmsg* nlmsg, int sock, const char* name,
                            const char* slave1, const char* slave2)
{
  netlink_add_device_impl(nlmsg, "hsr", name, false);
  netlink_nest(nlmsg, IFLA_INFO_DATA);
  int ifindex1 = if_nametoindex(slave1);
  netlink_attr(nlmsg, IFLA_HSR_SLAVE1, &ifindex1, sizeof(ifindex1));
  int ifindex2 = if_nametoindex(slave2);
  netlink_attr(nlmsg, IFLA_HSR_SLAVE2, &ifindex2, sizeof(ifindex2));
  netlink_done(nlmsg);
  netlink_done(nlmsg);
  int err = netlink_send(nlmsg, sock);
  if (err < 0) {
  }
}

static void netlink_add_linked(struct nlmsg* nlmsg, int sock, const char* type,
                               const char* name, const char* link)
{
  netlink_add_device_impl(nlmsg, type, name, false);
  netlink_done(nlmsg);
  int ifindex = if_nametoindex(link);
  netlink_attr(nlmsg, IFLA_LINK, &ifindex, sizeof(ifindex));
  int err = netlink_send(nlmsg, sock);
  if (err < 0) {
  }
}

static void netlink_add_vlan(struct nlmsg* nlmsg, int sock, const char* name,
                             const char* link, uint16_t id, uint16_t proto)
{
  netlink_add_device_impl(nlmsg, "vlan", name, false);
  netlink_nest(nlmsg, IFLA_INFO_DATA);
  netlink_attr(nlmsg, IFLA_VLAN_ID, &id, sizeof(id));
  netlink_attr(nlmsg, IFLA_VLAN_PROTOCOL, &proto, sizeof(proto));
  netlink_done(nlmsg);
  netlink_done(nlmsg);
  int ifindex = if_nametoindex(link);
  netlink_attr(nlmsg, IFLA_LINK, &ifindex, sizeof(ifindex));
  int err = netlink_send(nlmsg, sock);
  if (err < 0) {
  }
}

static void netlink_add_macvlan(struct nlmsg* nlmsg, int sock, const char* name,
                                const char* link)
{
  netlink_add_device_impl(nlmsg, "macvlan", name, false);
  netlink_nest(nlmsg, IFLA_INFO_DATA);
  uint32_t mode = MACVLAN_MODE_BRIDGE;
  netlink_attr(nlmsg, IFLA_MACVLAN_MODE, &mode, sizeof(mode));
  netlink_done(nlmsg);
  netlink_done(nlmsg);
  int ifindex = if_nametoindex(link);
  netlink_attr(nlmsg, IFLA_LINK, &ifindex, sizeof(ifindex));
  int err = netlink_send(nlmsg, sock);
  if (err < 0) {
  }
}

static void netlink_add_geneve(struct nlmsg* nlmsg, int sock, const char* name,
                               uint32_t vni, struct in_addr* addr4,
                               struct in6_addr* addr6)
{
  netlink_add_device_impl(nlmsg, "geneve", name, false);
  netlink_nest(nlmsg, IFLA_INFO_DATA);
  netlink_attr(nlmsg, IFLA_GENEVE_ID, &vni, sizeof(vni));
  if (addr4)
    netlink_attr(nlmsg, IFLA_GENEVE_REMOTE, addr4, sizeof(*addr4));
  if (addr6)
    netlink_attr(nlmsg, IFLA_GENEVE_REMOTE6, addr6, sizeof(*addr6));
  netlink_done(nlmsg);
  netlink_done(nlmsg);
  int err = netlink_send(nlmsg, sock);
  if (err < 0) {
  }
}

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

static void netlink_add_ipvlan(struct nlmsg* nlmsg, int sock, const char* name,
                               const char* link, uint16_t mode, uint16_t flags)
{
  netlink_add_device_impl(nlmsg, "ipvlan", name, false);
  netlink_nest(nlmsg, IFLA_INFO_DATA);
  netlink_attr(nlmsg, IFLA_IPVLAN_MODE, &mode, sizeof(mode));
  netlink_attr(nlmsg, IFLA_IPVLAN_FLAGS, &flags, sizeof(flags));
  netlink_done(nlmsg);
  netlink_done(nlmsg);
  int ifindex = if_nametoindex(link);
  netlink_attr(nlmsg, IFLA_LINK, &ifindex, sizeof(ifindex));
  int err = netlink_send(nlmsg, sock);
  if (err < 0) {
  }
}

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

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

static void netlink_add_addr4(struct nlmsg* nlmsg, int sock, const char* dev,
                              const char* addr)
{
  struct in_addr in_addr;
  inet_pton(AF_INET, addr, &in_addr);
  int err = netlink_add_addr(nlmsg, sock, dev, &in_addr, sizeof(in_addr));
  if (err < 0) {
  }
}

static void netlink_add_addr6(struct nlmsg* nlmsg, int sock, const char* dev,
                              const char* addr)
{
  struct in6_addr in6_addr;
  inet_pton(AF_INET6, addr, &in6_addr);
  int err = netlink_add_addr(nlmsg, sock, dev, &in6_addr, sizeof(in6_addr));
  if (err < 0) {
  }
}

static void netlink_add_neigh(struct nlmsg* nlmsg, int sock, const char* name,
                              const void* addr, int addrsize, const void* mac,
                              int macsize)
{
  struct ndmsg hdr;
  memset(&hdr, 0, sizeof(hdr));
  hdr.ndm_family = addrsize == 4 ? AF_INET : AF_INET6;
  hdr.ndm_ifindex = if_nametoindex(name);
  hdr.ndm_state = NUD_PERMANENT;
  netlink_init(nlmsg, RTM_NEWNEIGH, NLM_F_EXCL | NLM_F_CREATE, &hdr,
               sizeof(hdr));
  netlink_attr(nlmsg, NDA_DST, addr, addrsize);
  netlink_attr(nlmsg, NDA_LLADDR, mac, macsize);
  int err = netlink_send(nlmsg, sock);
  if (err < 0) {
  }
}

static struct nlmsg nlmsg;

static int tunfd = -1;

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

#define IFF_NAPI 0x0010

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

#define DEVLINK_FAMILY_NAME "devlink"

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

static struct nlmsg nlmsg2;

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

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

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

static void netdevsim_add(unsigned int addr, unsigned int port_count)
{
  write_file("/sys/bus/netdevsim/del_device", "%u", addr);
  if (write_file("/sys/bus/netdevsim/new_device", "%u %u", addr, port_count)) {
    char buf[32];
    snprintf(buf, sizeof(buf), "netdevsim%d", addr);
    initialize_devlink_ports("netdevsim", buf, "netdevsim");
  }
}

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

static void netlink_wireguard_setup(void)
{
  const char ifname_a[] = "wg0";
  const char ifname_b[] = "wg1";
  const char ifname_c[] = "wg2";
  const char private_a[] =
      "\xa0\x5c\xa8\x4f\x6c\x9c\x8e\x38\x53\xe2\xfd\x7a\x70\xae\x0f\xb2\x0f\xa1"
      "\x52\x60\x0c\xb0\x08\x45\x17\x4f\x08\x07\x6f\x8d\x78\x43";
  const char private_b[] =
      "\xb0\x80\x73\xe8\xd4\x4e\x91\xe3\xda\x92\x2c\x22\x43\x82\x44\xbb\x88\x5c"
      "\x69\xe2\x69\xc8\xe9\xd8\x35\xb1\x14\x29\x3a\x4d\xdc\x6e";
  const char private_c[] =
      "\xa0\xcb\x87\x9a\x47\xf5\xbc\x64\x4c\x0e\x69\x3f\xa6\xd0\x31\xc7\x4a\x15"
      "\x53\xb6\xe9\x01\xb9\xff\x2f\x51\x8c\x78\x04\x2f\xb5\x42";
  const char public_a[] =
      "\x97\x5c\x9d\x81\xc9\x83\xc8\x20\x9e\xe7\x81\x25\x4b\x89\x9f\x8e\xd9\x25"
      "\xae\x9f\x09\x23\xc2\x3c\x62\xf5\x3c\x57\xcd\xbf\x69\x1c";
  const char public_b[] =
      "\xd1\x73\x28\x99\xf6\x11\xcd\x89\x94\x03\x4d\x7f\x41\x3d\xc9\x57\x63\x0e"
      "\x54\x93\xc2\x85\xac\xa4\x00\x65\xcb\x63\x11\xbe\x69\x6b";
  const char public_c[] =
      "\xf4\x4d\xa3\x67\xa8\x8e\xe6\x56\x4f\x02\x02\x11\x45\x67\x27\x08\x2f\x5c"
      "\xeb\xee\x8b\x1b\xf5\xeb\x73\x37\x34\x1b\x45\x9b\x39\x22";
  const uint16_t listen_a = 20001;
  const uint16_t listen_b = 20002;
  const uint16_t listen_c = 20003;
  const uint16_t af_inet = AF_INET;
  const uint16_t af_inet6 = AF_INET6;
  const struct sockaddr_in endpoint_b_v4 = {
      .sin_family = AF_INET,
      .sin_port = htons(listen_b),
      .sin_addr = {htonl(INADDR_LOOPBACK)}};
  const struct sockaddr_in endpoint_c_v4 = {
      .sin_family = AF_INET,
      .sin_port = htons(listen_c),
      .sin_addr = {htonl(INADDR_LOOPBACK)}};
  struct sockaddr_in6 endpoint_a_v6 = {.sin6_family = AF_INET6,
                                       .sin6_port = htons(listen_a)};
  endpoint_a_v6.sin6_addr = in6addr_loopback;
  struct sockaddr_in6 endpoint_c_v6 = {.sin6_family = AF_INET6,
                                       .sin6_port = htons(listen_c)};
  endpoint_c_v6.sin6_addr = in6addr_loopback;
  const struct in_addr first_half_v4 = {0};
  const struct in_addr second_half_v4 = {(uint32_t)htonl(128 << 24)};
  const struct in6_addr first_half_v6 = {{{0}}};
  const struct in6_addr second_half_v6 = {{{0x80}}};
  const uint8_t half_cidr = 1;
  const uint16_t persistent_keepalives[] = {1, 3, 7, 9, 14, 19};
  struct genlmsghdr genlhdr = {.cmd = WG_CMD_SET_DEVICE, .version = 1};
  int sock;
  int id, err;
  sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC);
  if (sock == -1) {
    return;
  }
  id = netlink_query_family_id(&nlmsg, sock, WG_GENL_NAME, true);
  if (id == -1)
    goto error;
  netlink_init(&nlmsg, id, 0, &genlhdr, sizeof(genlhdr));
  netlink_attr(&nlmsg, WGDEVICE_A_IFNAME, ifname_a, strlen(ifname_a) + 1);
  netlink_attr(&nlmsg, WGDEVICE_A_PRIVATE_KEY, private_a, 32);
  netlink_attr(&nlmsg, WGDEVICE_A_LISTEN_PORT, &listen_a, 2);
  netlink_nest(&nlmsg, NLA_F_NESTED | WGDEVICE_A_PEERS);
  netlink_nest(&nlmsg, NLA_F_NESTED | 0);
  netlink_attr(&nlmsg, WGPEER_A_PUBLIC_KEY, public_b, 32);
  netlink_attr(&nlmsg, WGPEER_A_ENDPOINT, &endpoint_b_v4,
               sizeof(endpoint_b_v4));
  netlink_attr(&nlmsg, WGPEER_A_PERSISTENT_KEEPALIVE_INTERVAL,
               &persistent_keepalives[0], 2);
  netlink_nest(&nlmsg, NLA_F_NESTED | WGPEER_A_ALLOWEDIPS);
  netlink_nest(&nlmsg, NLA_F_NESTED | 0);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet, 2);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &first_half_v4,
               sizeof(first_half_v4));
  netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
  netlink_done(&nlmsg);
  netlink_nest(&nlmsg, NLA_F_NESTED | 0);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet6, 2);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &first_half_v6,
               sizeof(first_half_v6));
  netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
  netlink_done(&nlmsg);
  netlink_done(&nlmsg);
  netlink_done(&nlmsg);
  netlink_nest(&nlmsg, NLA_F_NESTED | 0);
  netlink_attr(&nlmsg, WGPEER_A_PUBLIC_KEY, public_c, 32);
  netlink_attr(&nlmsg, WGPEER_A_ENDPOINT, &endpoint_c_v6,
               sizeof(endpoint_c_v6));
  netlink_attr(&nlmsg, WGPEER_A_PERSISTENT_KEEPALIVE_INTERVAL,
               &persistent_keepalives[1], 2);
  netlink_nest(&nlmsg, NLA_F_NESTED | WGPEER_A_ALLOWEDIPS);
  netlink_nest(&nlmsg, NLA_F_NESTED | 0);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet, 2);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &second_half_v4,
               sizeof(second_half_v4));
  netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
  netlink_done(&nlmsg);
  netlink_nest(&nlmsg, NLA_F_NESTED | 0);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet6, 2);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &second_half_v6,
               sizeof(second_half_v6));
  netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
  netlink_done(&nlmsg);
  netlink_done(&nlmsg);
  netlink_done(&nlmsg);
  netlink_done(&nlmsg);
  err = netlink_send(&nlmsg, sock);
  if (err < 0) {
  }
  netlink_init(&nlmsg, id, 0, &genlhdr, sizeof(genlhdr));
  netlink_attr(&nlmsg, WGDEVICE_A_IFNAME, ifname_b, strlen(ifname_b) + 1);
  netlink_attr(&nlmsg, WGDEVICE_A_PRIVATE_KEY, private_b, 32);
  netlink_attr(&nlmsg, WGDEVICE_A_LISTEN_PORT, &listen_b, 2);
  netlink_nest(&nlmsg, NLA_F_NESTED | WGDEVICE_A_PEERS);
  netlink_nest(&nlmsg, NLA_F_NESTED | 0);
  netlink_attr(&nlmsg, WGPEER_A_PUBLIC_KEY, public_a, 32);
  netlink_attr(&nlmsg, WGPEER_A_ENDPOINT, &endpoint_a_v6,
               sizeof(endpoint_a_v6));
  netlink_attr(&nlmsg, WGPEER_A_PERSISTENT_KEEPALIVE_INTERVAL,
               &persistent_keepalives[2], 2);
  netlink_nest(&nlmsg, NLA_F_NESTED | WGPEER_A_ALLOWEDIPS);
  netlink_nest(&nlmsg, NLA_F_NESTED | 0);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet, 2);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &first_half_v4,
               sizeof(first_half_v4));
  netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
  netlink_done(&nlmsg);
  netlink_nest(&nlmsg, NLA_F_NESTED | 0);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet6, 2);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &first_half_v6,
               sizeof(first_half_v6));
  netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
  netlink_done(&nlmsg);
  netlink_done(&nlmsg);
  netlink_done(&nlmsg);
  netlink_nest(&nlmsg, NLA_F_NESTED | 0);
  netlink_attr(&nlmsg, WGPEER_A_PUBLIC_KEY, public_c, 32);
  netlink_attr(&nlmsg, WGPEER_A_ENDPOINT, &endpoint_c_v4,
               sizeof(endpoint_c_v4));
  netlink_attr(&nlmsg, WGPEER_A_PERSISTENT_KEEPALIVE_INTERVAL,
               &persistent_keepalives[3], 2);
  netlink_nest(&nlmsg, NLA_F_NESTED | WGPEER_A_ALLOWEDIPS);
  netlink_nest(&nlmsg, NLA_F_NESTED | 0);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet, 2);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &second_half_v4,
               sizeof(second_half_v4));
  netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
  netlink_done(&nlmsg);
  netlink_nest(&nlmsg, NLA_F_NESTED | 0);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet6, 2);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &second_half_v6,
               sizeof(second_half_v6));
  netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
  netlink_done(&nlmsg);
  netlink_done(&nlmsg);
  netlink_done(&nlmsg);
  netlink_done(&nlmsg);
  err = netlink_send(&nlmsg, sock);
  if (err < 0) {
  }
  netlink_init(&nlmsg, id, 0, &genlhdr, sizeof(genlhdr));
  netlink_attr(&nlmsg, WGDEVICE_A_IFNAME, ifname_c, strlen(ifname_c) + 1);
  netlink_attr(&nlmsg, WGDEVICE_A_PRIVATE_KEY, private_c, 32);
  netlink_attr(&nlmsg, WGDEVICE_A_LISTEN_PORT, &listen_c, 2);
  netlink_nest(&nlmsg, NLA_F_NESTED | WGDEVICE_A_PEERS);
  netlink_nest(&nlmsg, NLA_F_NESTED | 0);
  netlink_attr(&nlmsg, WGPEER_A_PUBLIC_KEY, public_a, 32);
  netlink_attr(&nlmsg, WGPEER_A_ENDPOINT, &endpoint_a_v6,
               sizeof(endpoint_a_v6));
  netlink_attr(&nlmsg, WGPEER_A_PERSISTENT_KEEPALIVE_INTERVAL,
               &persistent_keepalives[4], 2);
  netlink_nest(&nlmsg, NLA_F_NESTED | WGPEER_A_ALLOWEDIPS);
  netlink_nest(&nlmsg, NLA_F_NESTED | 0);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet, 2);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &first_half_v4,
               sizeof(first_half_v4));
  netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
  netlink_done(&nlmsg);
  netlink_nest(&nlmsg, NLA_F_NESTED | 0);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet6, 2);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &first_half_v6,
               sizeof(first_half_v6));
  netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
  netlink_done(&nlmsg);
  netlink_done(&nlmsg);
  netlink_done(&nlmsg);
  netlink_nest(&nlmsg, NLA_F_NESTED | 0);
  netlink_attr(&nlmsg, WGPEER_A_PUBLIC_KEY, public_b, 32);
  netlink_attr(&nlmsg, WGPEER_A_ENDPOINT, &endpoint_b_v4,
               sizeof(endpoint_b_v4));
  netlink_attr(&nlmsg, WGPEER_A_PERSISTENT_KEEPALIVE_INTERVAL,
               &persistent_keepalives[5], 2);
  netlink_nest(&nlmsg, NLA_F_NESTED | WGPEER_A_ALLOWEDIPS);
  netlink_nest(&nlmsg, NLA_F_NESTED | 0);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet, 2);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &second_half_v4,
               sizeof(second_half_v4));
  netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
  netlink_done(&nlmsg);
  netlink_nest(&nlmsg, NLA_F_NESTED | 0);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet6, 2);
  netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &second_half_v6,
               sizeof(second_half_v6));
  netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
  netlink_done(&nlmsg);
  netlink_done(&nlmsg);
  netlink_done(&nlmsg);
  netlink_done(&nlmsg);
  err = netlink_send(&nlmsg, sock);
  if (err < 0) {
  }

error:
  close(sock);
}

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

static int read_tun(char* data, int size)
{
  if (tunfd < 0)
    return -1;
  int rv = read(tunfd, data, size);
  if (rv < 0) {
    if (errno == EAGAIN || errno == EBADF || errno == EBADFD)
      return -1;
    exit(1);
  }
  return rv;
}

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

#define MAX_FDS 30

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

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

static void loop();

static void sandbox_common()
{
  prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0);
  setsid();
  struct rlimit rlim;
  rlim.rlim_cur = rlim.rlim_max = (200 << 20);
  setrlimit(RLIMIT_AS, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 32 << 20;
  setrlimit(RLIMIT_MEMLOCK, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 136 << 20;
  setrlimit(RLIMIT_FSIZE, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 1 << 20;
  setrlimit(RLIMIT_STACK, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 128 << 20;
  setrlimit(RLIMIT_CORE, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 256;
  setrlimit(RLIMIT_NOFILE, &rlim);
  if (unshare(CLONE_NEWNS)) {
  }
  if (mount(NULL, "/", NULL, MS_REC | MS_PRIVATE, NULL)) {
  }
  if (unshare(CLONE_NEWIPC)) {
  }
  if (unshare(0x02000000)) {
  }
  if (unshare(CLONE_NEWUTS)) {
  }
  if (unshare(CLONE_SYSVSEM)) {
  }
  typedef struct {
    const char* name;
    const char* value;
  } sysctl_t;
  static const sysctl_t sysctls[] = {
      {"/proc/sys/kernel/shmmax", "16777216"},
      {"/proc/sys/kernel/shmall", "536870912"},
      {"/proc/sys/kernel/shmmni", "1024"},
      {"/proc/sys/kernel/msgmax", "8192"},
      {"/proc/sys/kernel/msgmni", "1024"},
      {"/proc/sys/kernel/msgmnb", "1024"},
      {"/proc/sys/kernel/sem", "1024 1048576 500 1024"},
  };
  unsigned i;
  for (i = 0; i < sizeof(sysctls) / sizeof(sysctls[0]); i++)
    write_file(sysctls[i].name, sysctls[i].value);
}

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

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

static int do_sandbox_none(void)
{
  if (unshare(CLONE_NEWPID)) {
  }
  int pid = fork();
  if (pid != 0)
    return wait_for_loop(pid);
  setup_common();
  sandbox_common();
  drop_caps();
  initialize_netdevices_init();
  if (unshare(CLONE_NEWNET)) {
  }
  write_file("/proc/sys/net/ipv4/ping_group_range", "0 65535");
  initialize_tun();
  initialize_netdevices();
  setup_binderfs();
  loop();
  exit(1);
}

#define FS_IOC_SETFLAGS _IOW('f', 2, long)
static void remove_dir(const char* dir)
{
  int iter = 0;
  DIR* dp = 0;
retry:
  const int umount_flags = MNT_FORCE | UMOUNT_NOFOLLOW;
  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()
{
  reset_net_namespace();
}

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

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

static const char* setup_binfmt_misc()
{
  if (mount(0, "/proc/sys/fs/binfmt_misc", "binfmt_misc", 0, 0)) {
    return NULL;
  }
  if (!write_file("/proc/sys/fs/binfmt_misc/register",
                  ":syz0:M:0:\x01::./file0:") ||
      !write_file("/proc/sys/fs/binfmt_misc/register",
                  ":syz1:M:1:\x02::./file0:POC"))
    return "write(/proc/sys/fs/binfmt_misc/register) failed";
  return NULL;
}

static const char* setup_usb()
{
  if (chmod("/dev/raw-gadget", 0666))
    return "failed to chmod /dev/raw-gadget";
  return NULL;
}

static void setup_sysctl()
{
  char mypid[32];
  snprintf(mypid, sizeof(mypid), "%d", getpid());
  struct {
    const char* name;
    const char* data;
  } files[] = {
      {"/sys/kernel/debug/x86/nmi_longest_ns", "10000000000"},
      {"/proc/sys/kernel/hung_task_check_interval_secs", "20"},
      {"/proc/sys/net/core/bpf_jit_kallsyms", "1"},
      {"/proc/sys/net/core/bpf_jit_harden", "0"},
      {"/proc/sys/kernel/kptr_restrict", "0"},
      {"/proc/sys/kernel/softlockup_all_cpu_backtrace", "1"},
      {"/proc/sys/fs/mount-max", "100"},
      {"/proc/sys/vm/oom_dump_tasks", "0"},
      {"/proc/sys/debug/exception-trace", "0"},
      {"/proc/sys/kernel/printk", "7 4 1 3"},
      {"/proc/sys/kernel/keys/gc_delay", "1"},
      {"/proc/sys/vm/oom_kill_allocating_task", "1"},
      {"/proc/sys/kernel/ctrl-alt-del", "0"},
      {"/proc/sys/kernel/cad_pid", mypid},
  };
  for (size_t i = 0; i < sizeof(files) / sizeof(files[0]); i++) {
    if (!write_file(files[i].name, files[i].data)) {
    }
  }
}

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

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

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 < 27; 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 == 11 ? 500 : 0) +
                                     (call == 14 ? 500 : 0) +
                                     (call == 18 ? 500 : 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:
    *(uint32_t*)0x200000c0 = 0;
    *(uint32_t*)0x200000c4 = 0xc;
    *(uint64_t*)0x200000c8 = 0x20000440;
    memcpy((void*)0x20000440,
           "\x18\x00\x00\x00\x01\x07\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
           "\x18\x11\x00\x00",
           20);
    *(uint32_t*)0x20000454 = -1;
    memcpy(
        (void*)0x20000458,
        "\x00\x00\x00\x00\x00\x00\x00\x00\xb7\x08\x00\x00\x00\x00\x00\x00\x7b"
        "\x8a\xf8\xff\x00\x00\x00\x00\xbf\xa2\x00\x00\x00\x00\x00\x00\x07\x02"
        "\x00\x00\xf8\xff\xff\xff\xb7\x03\x00\x00\x08\x00\x00\x00\xb7\x04\x00"
        "\x00\x00\x00\x00\x00\x85\x00\x00\x00\x23\x00\x00\x00\x95",
        65);
    *(uint64_t*)0x200000d0 = 0;
    *(uint32_t*)0x200000d8 = 0;
    *(uint32_t*)0x200000dc = 0;
    *(uint64_t*)0x200000e0 = 0;
    *(uint32_t*)0x200000e8 = 0;
    *(uint32_t*)0x200000ec = 0;
    memset((void*)0x200000f0, 0, 16);
    *(uint32_t*)0x20000100 = 0;
    *(uint32_t*)0x20000104 = 0;
    *(uint32_t*)0x20000108 = -1;
    *(uint32_t*)0x2000010c = 0;
    *(uint64_t*)0x20000110 = 0;
    *(uint32_t*)0x20000118 = 0;
    *(uint32_t*)0x2000011c = 0;
    *(uint64_t*)0x20000120 = 0;
    *(uint32_t*)0x20000128 = 0;
    *(uint32_t*)0x2000012c = 0;
    *(uint32_t*)0x20000130 = 0;
    *(uint32_t*)0x20000134 = 0;
    *(uint64_t*)0x20000138 = 0;
    *(uint64_t*)0x20000140 = 0;
    *(uint32_t*)0x20000148 = 0;
    *(uint32_t*)0x2000014c = 0;
    syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x200000c0ul, /*size=*/0x90ul);
    break;
  case 1:
    syscall(__NR_bpf, /*cmd=*/0ul, /*arg=*/0ul, /*size=*/0ul);
    break;
  case 2:
    *(uint32_t*)0x200000c0 = 0x1b;
    *(uint32_t*)0x200000c4 = 0x300;
    *(uint32_t*)0x200000c8 = 0;
    *(uint32_t*)0x200000cc = 0x80008000;
    *(uint32_t*)0x200000d0 = 0x3461;
    *(uint32_t*)0x200000d4 = 1;
    *(uint32_t*)0x200000d8 = 0;
    memset((void*)0x200000dc, 0, 16);
    *(uint32_t*)0x200000ec = 0;
    *(uint32_t*)0x200000f0 = -1;
    *(uint32_t*)0x200000f4 = 0;
    *(uint32_t*)0x200000f8 = 4;
    *(uint32_t*)0x200000fc = 0;
    *(uint64_t*)0x20000100 = 0;
    syscall(__NR_bpf, /*cmd=*/0ul, /*arg=*/0x200000c0ul, /*size=*/0x48ul);
    break;
  case 3:
    *(uint32_t*)0x20000a40 = 3;
    *(uint32_t*)0x20000a44 = 0xc;
    *(uint64_t*)0x20000a48 = 0x20000440;
    memcpy((void*)0x20000440,
           "\x18\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
           "\x18\x11\x00\x00",
           20);
    *(uint32_t*)0x20000454 = -1;
    memcpy(
        (void*)0x20000458,
        "\x00\x00\x00\x00\x00\x00\x00\x00\xb7\x08\x00\x00\x00\x00\x00\x00\x7b"
        "\x8a\xf8\xff\x00\x00\x00\x00\xbf\xa2\x00\x00\x00\x00\x00\x00\x07\x02"
        "\x00\x00\xf8\xff\xff\xff\xb7\x03\x00\x00\x00\x00\x00\x00\xb7\x04\x00"
        "\x00\x00\x00\x00\x00\x85\x00\x00\x00\x57\x00\x00\x00\x95",
        65);
    *(uint64_t*)0x20000a50 = 0;
    *(uint32_t*)0x20000a58 = 0;
    *(uint32_t*)0x20000a5c = 0;
    *(uint64_t*)0x20000a60 = 0;
    *(uint32_t*)0x20000a68 = 0;
    *(uint32_t*)0x20000a6c = 0;
    memset((void*)0x20000a70, 0, 16);
    *(uint32_t*)0x20000a80 = 0;
    *(uint32_t*)0x20000a84 = 0x25;
    *(uint32_t*)0x20000a88 = -1;
    *(uint32_t*)0x20000a8c = 8;
    *(uint64_t*)0x20000a90 = 0;
    *(uint32_t*)0x20000a98 = 0;
    *(uint32_t*)0x20000a9c = 0x10;
    *(uint64_t*)0x20000aa0 = 0;
    *(uint32_t*)0x20000aa8 = 0;
    *(uint32_t*)0x20000aac = 0;
    *(uint32_t*)0x20000ab0 = 0;
    *(uint32_t*)0x20000ab4 = 0;
    *(uint64_t*)0x20000ab8 = 0;
    *(uint64_t*)0x20000ac0 = 0;
    *(uint32_t*)0x20000ac8 = 0x10;
    *(uint32_t*)0x20000acc = 0;
    syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x20000a40ul, /*size=*/0x90ul);
    break;
  case 4:
    *(uint32_t*)0x200000c0 = 0xb;
    *(uint32_t*)0x200000c4 = 7;
    *(uint32_t*)0x200000c8 = 0x10001;
    *(uint32_t*)0x200000cc = 8;
    *(uint32_t*)0x200000d0 = 1;
    *(uint32_t*)0x200000d4 = -1;
    *(uint32_t*)0x200000d8 = 0;
    memset((void*)0x200000dc, 0, 16);
    *(uint32_t*)0x200000ec = 0;
    *(uint32_t*)0x200000f0 = -1;
    *(uint32_t*)0x200000f4 = 0;
    *(uint32_t*)0x200000f8 = 0;
    *(uint32_t*)0x200000fc = 0;
    *(uint64_t*)0x20000100 = 0;
    res = syscall(__NR_bpf, /*cmd=*/0ul, /*arg=*/0x200000c0ul, /*size=*/0x48ul);
    if (res != -1)
      r[0] = res;
    break;
  case 5:
    *(uint32_t*)0x20000200 = 0;
    *(uint32_t*)0x20000204 = 0xc;
    *(uint64_t*)0x20000208 = 0x20000440;
    memcpy((void*)0x20000440,
           "\x18\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
           "\x18\x11\x00\x00",
           20);
    *(uint32_t*)0x20000454 = r[0];
    *(uint64_t*)0x20000210 = 0;
    *(uint32_t*)0x20000218 = 0;
    *(uint32_t*)0x2000021c = 0;
    *(uint64_t*)0x20000220 = 0;
    *(uint32_t*)0x20000228 = 0;
    *(uint32_t*)0x2000022c = 0;
    memset((void*)0x20000230, 0, 16);
    *(uint32_t*)0x20000240 = 0;
    *(uint32_t*)0x20000244 = 0;
    *(uint32_t*)0x20000248 = -1;
    *(uint32_t*)0x2000024c = 0;
    *(uint64_t*)0x20000250 = 0;
    *(uint32_t*)0x20000258 = 0xffffffc4;
    *(uint32_t*)0x2000025c = 0;
    *(uint64_t*)0x20000260 = 0;
    *(uint32_t*)0x20000268 = 0;
    *(uint32_t*)0x2000026c = 0;
    *(uint32_t*)0x20000270 = -1;
    *(uint32_t*)0x20000274 = 0;
    *(uint64_t*)0x20000278 = 0;
    *(uint64_t*)0x20000280 = 0;
    *(uint32_t*)0x20000288 = 0;
    *(uint32_t*)0x2000028c = 0;
    syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x20000200ul, /*size=*/0x90ul);
    break;
  case 6:
    *(uint32_t*)0x200000c0 = 0;
    *(uint32_t*)0x200000c4 = 4;
    *(uint64_t*)0x200000c8 = 0x20000480;
    memcpy((void*)0x20000480,
           "\x18\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
           "\x85\x00\x00\x00\x6d",
           21);
    *(uint64_t*)0x200000d0 = 0;
    *(uint32_t*)0x200000d8 = 0;
    *(uint32_t*)0x200000dc = 0;
    *(uint64_t*)0x200000e0 = 0;
    *(uint32_t*)0x200000e8 = 0;
    *(uint32_t*)0x200000ec = 0;
    memset((void*)0x200000f0, 0, 16);
    *(uint32_t*)0x20000100 = 0;
    *(uint32_t*)0x20000104 = 0;
    *(uint32_t*)0x20000108 = -1;
    *(uint32_t*)0x2000010c = 0;
    *(uint64_t*)0x20000110 = 0;
    *(uint32_t*)0x20000118 = 0;
    *(uint32_t*)0x2000011c = 0;
    *(uint64_t*)0x20000120 = 0;
    *(uint32_t*)0x20000128 = 0;
    *(uint32_t*)0x2000012c = -1;
    *(uint32_t*)0x20000130 = 0;
    *(uint32_t*)0x20000134 = 0;
    *(uint64_t*)0x20000138 = 0;
    *(uint64_t*)0x20000140 = 0;
    *(uint32_t*)0x20000148 = 0;
    *(uint32_t*)0x2000014c = 0;
    syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x200000c0ul, /*size=*/0x90ul);
    break;
  case 7:
    *(uint32_t*)0x200005c0 = 0x18;
    *(uint32_t*)0x200005c4 = 0xc;
    *(uint64_t*)0x200005c8 = 0x20000440;
    *(uint64_t*)0x200005d0 = 0x20000240;
    memcpy((void*)0x20000240, "GPL\000", 4);
    *(uint32_t*)0x200005d8 = 0;
    *(uint32_t*)0x200005dc = 0;
    *(uint64_t*)0x200005e0 = 0;
    *(uint32_t*)0x200005e8 = 0;
    *(uint32_t*)0x200005ec = 0;
    memset((void*)0x200005f0, 0, 16);
    *(uint32_t*)0x20000600 = 0;
    *(uint32_t*)0x20000604 = 0;
    *(uint32_t*)0x20000608 = -1;
    *(uint32_t*)0x2000060c = 0;
    *(uint64_t*)0x20000610 = 0;
    *(uint32_t*)0x20000618 = 0;
    *(uint32_t*)0x2000061c = 0;
    *(uint64_t*)0x20000620 = 0;
    *(uint32_t*)0x20000628 = 0;
    *(uint32_t*)0x2000062c = 0;
    *(uint32_t*)0x20000630 = 0;
    *(uint32_t*)0x20000634 = 0;
    *(uint64_t*)0x20000638 = 0;
    *(uint64_t*)0x20000640 = 0;
    *(uint32_t*)0x20000648 = 0;
    *(uint32_t*)0x2000064c = 0;
    syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x200005c0ul, /*size=*/0x90ul);
    break;
  case 8:
    *(uint32_t*)0x20000180 = 2;
    *(uint32_t*)0x20000184 = 4;
    *(uint32_t*)0x20000188 = 0x2300;
    *(uint32_t*)0x2000018c = 0x20;
    *(uint32_t*)0x20000190 = 0;
    *(uint32_t*)0x20000194 = -1;
    *(uint32_t*)0x20000198 = 0;
    memset((void*)0x2000019c, 0, 16);
    *(uint32_t*)0x200001ac = 0;
    *(uint32_t*)0x200001b0 = -1;
    *(uint32_t*)0x200001b4 = 0;
    *(uint32_t*)0x200001b8 = 0;
    *(uint32_t*)0x200001bc = 0;
    *(uint64_t*)0x200001c0 = 0;
    res = syscall(__NR_bpf, /*cmd=*/0ul, /*arg=*/0x20000180ul, /*size=*/0x48ul);
    if (res != -1)
      r[1] = res;
    break;
  case 9:
    *(uint64_t*)0x200016c0 = 0;
    *(uint64_t*)0x200016c8 = 0x20000600;
    *(uint64_t*)0x200016d0 = 0x20000640;
    *(uint64_t*)0x200016d8 = 0x200006c0;
    *(uint32_t*)0x200016e0 = 1;
    *(uint32_t*)0x200016e4 = r[1];
    *(uint64_t*)0x200016e8 = 0;
    *(uint64_t*)0x200016f0 = 0;
    syscall(__NR_bpf, /*cmd=*/0x18ul, /*arg=*/0x200016c0ul, /*size=*/0x38ul);
    break;
  case 10:
    *(uint32_t*)0x200000c0 = 0x11;
    *(uint32_t*)0x200000c4 = 0xc;
    *(uint64_t*)0x200000c8 = 0x20000440;
    *(uint64_t*)0x200000d0 = 0x20000240;
    memcpy((void*)0x20000240, "GPL\000", 4);
    *(uint32_t*)0x200000d8 = 0;
    *(uint32_t*)0x200000dc = 0;
    *(uint64_t*)0x200000e0 = 0;
    *(uint32_t*)0x200000e8 = 0;
    *(uint32_t*)0x200000ec = 0;
    memset((void*)0x200000f0, 0, 16);
    *(uint32_t*)0x20000100 = 0;
    *(uint32_t*)0x20000104 = 0;
    *(uint32_t*)0x20000108 = -1;
    *(uint32_t*)0x2000010c = 0;
    *(uint64_t*)0x20000110 = 0;
    *(uint32_t*)0x20000118 = 0;
    *(uint32_t*)0x2000011c = 0;
    *(uint64_t*)0x20000120 = 0;
    *(uint32_t*)0x20000128 = 0;
    *(uint32_t*)0x2000012c = 0;
    *(uint32_t*)0x20000130 = 0;
    *(uint32_t*)0x20000134 = 0;
    *(uint64_t*)0x20000138 = 0;
    *(uint64_t*)0x20000140 = 0;
    *(uint32_t*)0x20000148 = 0;
    *(uint32_t*)0x2000014c = 0;
    res = syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x200000c0ul, /*size=*/0x90ul);
    if (res != -1)
      r[2] = res;
    break;
  case 11:
    *(uint64_t*)0x20000040 = 0x20000080;
    memcpy((void*)0x20000080, "ext4_da_update_reserve_space\000", 29);
    *(uint32_t*)0x20000048 = r[2];
    syscall(__NR_bpf, /*cmd=*/0x11ul, /*arg=*/0x20000040ul, /*size=*/0x10ul);
    break;
  case 12:
    memcpy((void*)0x200001c0, "memory.current\000", 15);
    res = syscall(__NR_openat, /*fd=*/0xffffff9c, /*file=*/0x200001c0ul,
                  /*flags=*/0x275aul, /*mode=*/0ul);
    if (res != -1)
      r[3] = res;
    break;
  case 13:
    *(uint32_t*)0x200000c0 = 0x11;
    *(uint32_t*)0x200000c4 = 0xc;
    *(uint64_t*)0x200000c8 = 0x20000440;
    *(uint64_t*)0x200000d0 = 0x20000240;
    memcpy((void*)0x20000240, "GPL\000", 4);
    *(uint32_t*)0x200000d8 = 0;
    *(uint32_t*)0x200000dc = 0;
    *(uint64_t*)0x200000e0 = 0;
    *(uint32_t*)0x200000e8 = 0;
    *(uint32_t*)0x200000ec = 0;
    memset((void*)0x200000f0, 0, 16);
    *(uint32_t*)0x20000100 = 0;
    *(uint32_t*)0x20000104 = 0;
    *(uint32_t*)0x20000108 = -1;
    *(uint32_t*)0x2000010c = 0;
    *(uint64_t*)0x20000110 = 0;
    *(uint32_t*)0x20000118 = 0;
    *(uint32_t*)0x2000011c = 0;
    *(uint64_t*)0x20000120 = 0;
    *(uint32_t*)0x20000128 = 0;
    *(uint32_t*)0x2000012c = 0;
    *(uint32_t*)0x20000130 = 0;
    *(uint32_t*)0x20000134 = 0;
    *(uint64_t*)0x20000138 = 0;
    *(uint64_t*)0x20000140 = 0;
    *(uint32_t*)0x20000148 = 0;
    *(uint32_t*)0x2000014c = 0;
    res = syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x200000c0ul, /*size=*/0x90ul);
    if (res != -1)
      r[4] = res;
    break;
  case 14:
    *(uint64_t*)0x20000040 = 0x20000080;
    memcpy((void*)0x20000080, "ext4_da_update_reserve_space\000", 29);
    *(uint32_t*)0x20000048 = r[4];
    syscall(__NR_bpf, /*cmd=*/0x11ul, /*arg=*/0x20000040ul, /*size=*/0x10ul);
    break;
  case 15:
    *(uint32_t*)0x20000080 = 8;
    *(uint32_t*)0x20000084 = 0xe;
    *(uint64_t*)0x20000088 = 0x20000880;
    memcpy(
        (void*)0x20000880,
        "\xb7\x02\x00\x00\x00\x00\x00\x00\xbf\xa3\x00\x00\x00\x00\x00\x00\x07"
        "\x03\x00\x00\x00\xfe\xff\xff\x7a\x0a\xf0\xff\x11\x00\x00\x1f\x79\xa4"
        "\xf0\xff\x00\x00\x00\x00\xb7\x06\x00\x00\x00\x00\x00\x81\xad\x64\x02"
        "\x00\x00\x00\x00\x00\x45\x04\x04\x00\x01\x00\xff\x0f\x17\x04\x00\x00"
        "\x01\x13\x0a\x00\xb7\x04\x00\x00\x05\x00\x00\x00\x6a\x0a\xf2\xfe\x00"
        "\x00\x00\x00\x85\x00\x00\x00\x1a\x00\x00\x00\xb7\x00\x00\x00\x00\x00"
        "\x00\x00\x95\x00\x00\x00\x00\x00\x00\x00\x00\xe1\x54\xcd\x84\x4a\x95"
        "\x4b\x26\xc9\x33\xf7\xff\xff\xff\xff\xff\xff\xff\x55\xbb\x20\x07\xee"
        "\x51\x05\x05\x12\xda\x90\xb5\xb4\x21\x28\xaa\x09\x0a\x79\x50\x7d\xf7"
        "\x19\xaf\x36\x34\x9f\x29\x81\x29\xda\x48\x71\x30\x7b\x53\x4b\xf9\x01"
        "\x11\x5e\x17\x39\x2a\xc6\x6a\xd0\x22\x18\x6a\x89\x29\xd1\xc0\x00\x00"
        "\x61\x46\x00\x1e\x04\xae\xac\xea\x79\x9a\x22\xa2\xfa\x03\x00\x00\xc4"
        "\x12\xf6\xca\xe8\x00\x43\xeb\x27\xd5\x33\x19\xd0\xad\x22\x9e\x57\x52"
        "\x54\x83\x00\x00\x00\x00\xdb\xc2\x77\x7d\xf1\x50\x95\x16\xf0\x6f\x13"
        "\x30\xcf\x8c\x3a\x8b\x1f\xf7\x2e\x61\x27\xb0\xdd\x48\x83\x18\xb5\x79"
        "\x0b\xee\x7e\xbd\x47\x45\xb7\xcd\xd7\x7b\x85\xb9\x41\x09\x23\x14\xfd"
        "\x08\x5f\x02\x8f\x4e\x09\xd6\x37\x81\x98\x7a\xf2\xab\xd5\x5a\x87\xac"
        "\x03\x94\xb2\xf9\x2f\xfa\xb7\xd1\x53\xd6\x20\x58\xd0\xa4\x13\xb2\x17"
        "\x36\x9c\xa8\xb6\x71\x2f\x00\x00\x00\x00\x1b\x1d\xf6\x5b\x3e\x1b\x9b"
        "\xf1\x15\x64\x69\x14\xce\x53\xd1\x3d\x0c\xca\xcd\xa1\xef\x16\xfd\xcc"
        "\xea\xed\xe3\xfa\xed\xc5\x1d\x29\xa4\x7f\xc8\x13\xce\x3d\x32\xcf\xc7"
        "\xa5\x04\xc2\x71\xd6\xd6\xf4\xea\x6b\xf9\x7f\x2f\x1b\xe2\xea\x2e\x53"
        "\x43\x00\xbc\xb3\xfd\xc4\xb4\x86\x10\x04\xee\xfb\xda\x7f\x54\xf8\x2a"
        "\x80\x4d\x4a\x69\xbf\x9b\xc5\xfa\x77\xee\x29\x3f\xbd\x16\x5a\x5a\x68"
        "\x48\x8e\x40\xb0\x30\x16\x65\x65\xa0\x97\xb1\xb4\x4b\x45\x1d\xe7\x94"
        "\x0b\x00\x00\xdb\x8d\xb0\x3d\x4b\x77\x45\xfe\xf1\xd0\x4e\xc6\x33\xde"
        "\xe2\x54\xa6\xd4\x91\xb8\x49\x6d\xa7\x87\xe8\x14\xc4\xfd\xf0\xb4\xa3"
        "\x87\xb4\xc8\x14\x9d\x18\xc1\x02\x00\x29\xa1\x89\x86\x25\x2a\x70\xf8"
        "\xf9\x2e\xb6\xf0\xe8\xc7\xdb\x00\x00\x68\xfb\xaa\x2e\x2a\x27\xef\xd9"
        "\x10\x42\x97\xf2\xc5\x81\x59\xf0\x2d\x1b\x72\x18\x3a\xac\xf4\xa8\x4f"
        "\x91\x30\xb7\x75\xdd\x4e\x9e\x30\x70\x75\x6f\x97\xad\x79\x1f\xa9\x09"
        "\xac\x06\xb5\x74\x79\x32\x1a\x05\x74\xfb\x30\x4b\xc2\xa1\x68\x19\x89"
        "\x32\x8c\x8d\xdc\x20\xea\x01\x1b\xf5\x74\x2e\x0e\xf9\x42\x34\xdb\x1f"
        "\x00\x00\x00\x00\x00\x00\x00\xc2\x0f\xb4\x79\x1e\xc8\x58\x21\xd0\xc4"
        "\x8f\xb6\x57\xc2\x9b\x30\x9c\x73\xf0\x97\x7e\x7c\xde\x65\xa8\x2b\x94"
        "\xc4\x61\xd7\x96\x2b\x35\xf4\x21\xc3\x55\x27\x72\xca\x7f\x3e\x2c\x25"
        "\xa6\x5f\x75\xca\x13\xfb\x7c\x8b\xbd\x6f\xf4\x3c\xb7\x8b\x6e\x7d\xac"
        "\x1a\xba\x4b\x20\xdc\x7d\xe0\x58\xa4\xdf\xa7\xe8\x5a\x8b\xdf\x1d\x41"
        "\xaa\xd8\xbd\xa7\x4d\x66\xf4\x7c\xc1\x7d\x8b\xa3\xee\xc0\xfd\x80\xf8"
        "\x2c\x5f\x57\x3c\x6d\x29\x4d\x36\x65\x05\x00\x00\x00\xda\x0f\xde\x07"
        "\x45\xdb\x06\x75\x3a\x7a\xc7\xfe\x13\xca\xb6\x69\x24\x22\xa4\x6e\x9f"
        "\xfe\x2d\x4a\x2d\x32\xf7\x52\x87\x51\x31\x36\x94\xbf\x57\x00\xb2\x0e"
        "\xf0\xc2\x48\xdd\xd3\xda\x32\x39\x47\x00\x4c\xac\xad\xca\xff\x20\x66"
        "\xbb\x5d\x40\x45\xc9\x58\x56\x38\xc2\x15\x3a\x6e\xee\x01\x73\x8b\x0c"
        "\x10\x67\x1f\x4f\x55\x9b\x7d\xcb\x98\xa6\x27\x3b\x8c\x5f\x1e\x24\xd9"
        "\xf6\x79\xe4\xfb\xe9\x48\xdf\xb4\xcc\x4a\x38\x94\x85\xee\x7a\xf1\xf0"
        "\x38\x7c\x93\x55\x96\x53\xf5\x0a\x47\x1c\x69\x60\x82\x41\x73\x04\x59"
        "\xf0\x12\xb0\x60\xe7\xd2\x3f\xd3\x92\x06\x00\x00\x00\x00\x00\x00\xeb"
        "\x55\xd0\x01\x62\x32\x5b\xa1\x41\xbd\x58\x7c\xc9\xda\xd4\x6d\xe5\x6e"
        "\xf9\x07\xb0\x59\xb9\x9a\x79\xae\x54\x98\xf6\x58\x98\x80\xed\x6e\xea"
        "\x7b\x9c\x67\x00\x12\xf8\x0c\xd6\xa1\x39\x79\x53\xba\x58\x70\x78\x65"
        "\x54\xdf\x26\x23\x6e\xbc\xed\x93\x90\xcb\x69\x41\xb8\x36\x5d\x93\x6a"
        "\x7d\x21\x20\xec\xa2\x91\x96\x3e\xb2\xd5\x37\xd8\x7c\xbb\x54\xe5\x88"
        "\xee\x5d\x69\x44\xee\x4d\xe5\xc1\x83\xc9\x60\x11\x94\x51\xc3\x15\x39"
        "\xb2\x28\x09\xe1\xd7\xf0\xc7\xa0\x6a\x9f\xa8\x7d\x64\xcb\x77\x87\x2a"
        "\x0a\xa9\xa1\x04\xe1\x6b\x3b\x8c\x6e\x64\x83\x6a\xc3\xf3\x2f\x53\xc9"
        "\xa2\xba\xe5\x13\x46\x4c\xa0\x3a\xff\x14\xb9\xaa\x4b\xd9\x53\x9f\x50"
        "\x96\x41\x2b\x92\x01\x2e\x09\x5b\x84\xc2\x02\x06\x00\x98\xdf\x33\x14"
        "\xf0\xe3\x99\xd1\xb9\xf2\x7e\x3c\x33\x26\x9c\x0e\x15\x3b\x28\xb2\xd4"
        "\x41\x05\x72\xbc\x45\xb9\xd3\xfa\x02\x20\x8d\x30\x4d\x45\x5c\x36\x30"
        "\x00\x00\x00\x00\x22\x32\x01\x78\x02\x00\xc6\xed\x79\x66\x13\x0b\x54"
        "\x7d\xbf\x8b\x49\x7a\xf0\xa7\x7f\x52\xf2\xcd\x39\x00\x00\x00\x20\x00"
        "\x00\xe8\x1c\x23\xcf\x14\x15\x69\x51\x21\x00\x01\xc8\x00\x00\x00\x00"
        "\x00\x15\x00\x00\x00\x00\x00\x09\x28\xee\x53\x59\x5a\x77\x9d\x24\x3a"
        "\x48\xce\xa7\x69\x47\x04\x24\xd2\x88\x04\xc0\x26\xab\x7f\x4a\x5c\x81"
        "\x92\x1e\x01\x28\xdf\xd7\x0b\x43\x8a\xf6\x0b\x06\x00\x00\x00\x00\x00"
        "\x00\x00\x56\x64\x2b\x49\xb7\x45\xf3\xbf\x2c\x01\x80\x8b\x6d\x7d\x74"
        "\x83\x08\xee\xa0\x9f\x01\x61\xb4\x73\x5e\xfb\xf3\x41\x17\x38\xd6\xee"
        "\x7a\xeb\xf9\xef\x40\x66\x2d\x78\x36\xd2\x52\xc5\x66\xe1\xee\x93\x8a"
        "\x9a\x68\x04\xed\x3a\x10\x79\xb0\x28\x2a\x12\x04\x34\x08\xcd\x60\xb9"
        "\xe5\x39\x78\xc8\x18\x39\xbe\x00\x00\x00\x00\x00\x45\x6f\x7d\x2a\x42"
        "\xcb\x13\xda\x20\x22\xf2\x3e\xae\xc6\x18\x54\xf6\x40\xf7\x01\xdb\x02"
        "\x76\x65\x2f\x6c\x74\xf2\x06\x75\xeb\x78\x19\x25\x44\x15\x78\xe9\x30"
        "\x46\xaa\xdd\xea\x39\x4c\xd8\xff\xd3\xd6\x28\x29\x3e\x59\x1d\xc6\xf7"
        "\x1c\x27\x10\xa7\xea\x8a\x4f\xdc\x21\x4e\x1c\xc2\x75\xb2\x6a\xdf\xa8"
        "\x92\xe6\xde\x92\x00\x00\x00\x00\xe5\x0e\x5b\xaf\xec\xea\x4d\x41\x34"
        "\xf9\xd0\x06\xc8\xd6\x88\x3e\xca\x5c\x9c\x58\xc9\xe9\x33\x11\xab\x50"
        "\xfe\x82\xd5\xa9\x6b\x09\xc6\x8c\x73\xde\x2f\x04\xf1\x5d\x00\x53\x87"
        "\x57\x7f\x48\x00\x00\xea\x65\x55\x9e\xb0\x0e\x01\x4d\xf2\x0f\xa2\x09"
        "\xbc\xbb\x5c\x25\x2b\x11\xa6\x0c\xa7\x70\x66\x3d\xa4\x51\x79\x0c\xc3"
        "\x60\x00\x90\x6d\x5a\x9f\xad\x98\xc3\x08\xe3\x9b\xd5\xff\xb6\x15\x1d"
        "\x79\xc1\xce\xe1\xcd\xfb\xa0\x5e\x36\x33\xc2\x6d\x39\x27\xae\x1b\xeb"
        "\x06\x5f\x5a\xc3\x3f\xdb\xe2\x8a\x5f\xfc\x83\xf2\xf0\x85\x18\x5c\xc9"
        "\x2f\xe7\xf7\x91\xe8\xf6\x42\x93\x09\xd6\xad\xab\x4b\x7e\x50\x8e\x5b"
        "\xf0\x24\xed\x8f\x8a\x00\x5f\x2b\x2b\xdc\x0a\xf7\xc4\xc6\x12\x41\x75"
        "\x0d\x50\x51\x5a\x59\xa3\xad\x09\xe8\x80\x2e\x8f\x4f\x53\x54\x47\xdc"
        "\x0f\xc9\xd5\xf9\x9a\x14\x5d\xfc\xed\xad\x69\xda\x9c\xd4\xb7\x5c\x62"
        "\x46\x00\xe7\x8f\x44\x58\x54\x2b\x14\xf2\x96\x11\xf9\x5d\x4a\x31\x83"
        "\x84\xeb\x20\xc2\x0b\xb8\x2a\xa3\x17\x71\xcd\x37\x9e\xc8\x35\x54\xce"
        "\xa5\xe6\x53\x9d\xb7\x38\x4e\x1f\x58\xd8\x1f\x2f\x26\x53\xc4\xd9\x81"
        "\x87\x08\xe2\x7c\x89\xb5\x52\xd5\x83\xf4\x36\x13\x7a\x3c\x5d\xc7\x14"
        "\xc9\x40\x2c\x21\xd1\x81\xaa\xe5\x9e\xfb\x28\xd4\xf9\x16\x52\xf6\x75"
        "\x0b\x91\x95\x59\x9d\x60\xc5\x34\xee\x8e\x8f\xf0\x75\x5b\x09\x00\x4c"
        "\x25\xed\xb8\x5b\xcf\xf2\x4c\x75\x7a\xa8\x09\x00\x00\x00\x00\xb6\x63"
        "\x8c\x42\x0e\xb4\x30\x4f\x66\xe3\xa3\x7a\xaf\x00\x00\x00\xc4\x2a\x57"
        "\x0f\x0e\x9d\x76\xfd\x54\x54\x70\xf8\x62\xf8\xc3\xc1\x4f\xa9\xec\xd1"
        "\xe8\x77\xb0\xd8\xca\x84\xc0\x44\x85\x9e\x85\xe6\x15\x8f\x91\x84\xbc"
        "\x61\xa9\xa2\x84\xdf\x80\xe4\x63\x6c\x25\xb9\x61\x74\x32\x6d\x82\x76"
        "\x1c\x26\xe3\x29\x55\x5f\x92\x90\xaf\x40\x00\x00\x00\x00\x00\x00\x10"
        "\x00\x00\xfd\x37\x63\x65\x55\x00\x34\x4b\xae\x34\x34\x7f\x5a\xb0\xd5"
        "\x34\xb8\xd6\x3e\x4c\xa3\xb6\x71\xf2\xde\x1c\xdf\x51\x91\x92\xc6\xb5"
        "\x9a\x60\x1f\xd4\x19\xa5\xc1\x6e\x20\x55\xb8\x50\x58\x09\xed\x2e\xe9"
        "\x64\x7c\x5d\x3b\x00\x00\xbc\x00\xed\xf5\xe9\x02\x0c\x09\xab\x00\x43"
        "\x21\x61\x0b\x85\x7e\x87\x17\x97\x4b\x63\x3b\x21\xcb\x32\xf0\xe0\x32"
        "\x80\xe0\x97\x58\xbd\x44\x5a\xb9\x1d\x20\x17\x82\xd6\x56\xab\x09\xf5"
        "\x08\xbb\xba\xca\x00\x54\x52\xb7\x9d\x7b\x57\x4a\x24\x7f\x1d\x2f\xe4"
        "\x5b\x3c\x4e\x93\xda\x3d\x51\xde\x64\x7c\x10\xdd\x49\x94\x4d\xc8\x7c"
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        "\xb7\xae\xbd\xa7\xa1\x6b\x1d\x20\xdd\x8b\x65\xbc\xda\xc8\xcd\xc7\x5a"
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        "\xc7\xec\x0f\xa5\xc4\x4d\x13\x16\x5d\x63\x84\xbf\x95\x00\x75\x7b\x4b"
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        "\x07\x2c\x98\xf4\x54\x15\xd1\x3f\x0d\xce\xa1\x74\xf1\x62\xeb\xd0\x0b"
        "\x42\x26\x4f\x6f\xa3\xdc\xcd\x09\xf4\x10\x1d\xd2\x54\xe5\x44\x23\xb3"
        "\x0e\x06\x71\x3e\xcc\xfa\xcb\x6f\xfb\x38\xaf\xff\x92\x09\x80\xaf\x93"
        "\x8a\x4d\x78\xf4\xb9\xa6\xb5\xc7\x42\x4e\x91\x12\x1c\xda\x78\x91\x04"
        "\xee\x49\x0d\x25\x84\x3f\x16\x22\xbb\xa9\x32\x57\xcc\x23\xe4\x5c\xd7"
        "\xed\x42\xab\xdb\x99\x1d\x51\x80\x4e\x67\x4e\x50\x7d\xfd\x53\xb5\xab"
        "\x69\x44\xdf\x33\xf4\xf4\x94\xb9\x26\xf2\xce\xb3\x29\x55\x0b\x46\xe8"
        "\x2a\x93\x9a\xd8\x2b\x38\x5e\x66\x80\x9d\x7d\x4d\x36\x30\xb6\xf2\x2c"
        "\x2f\x41\xfd\xaa\x0f\xad\xee\xa0\x9f\xa4\xf7\x00\x58\x13\x64\x3c\x2d"
        "\x63\x07\xd5\x56\x89\xfa\xf6\xf6\x56\x32\x7a\xc5\x87\x2a\x3b\xd4\xc1"
        "\x13\x63\x90\x9a\x8b\x9f\x30\xe5\x40\x19\x93\xa0\xf6\xe1\xa9\xb4\x22"
        "\x87\x54\x26\x47\xd1\xe8\x6b\x02\xb7\xe3\x63\x19\x41\x46\x29\xac\x1f"
        "\x35\xe1\x45\x7f\x92\x2d\xa0\xc2\xde\x76\xc9\xe9\x79\x44\xef\xad\x0a"
        "\x3a\xd7\x8c\xda\x81\xc5\xb8\x27\x09\xd6\x96\xe8\x5b\xbf\x45\x95\xef"
        "\x96\x64\xa6\xaf\xf8\xcf\x96\x44\x6c\xb6\xc2\x65\x95\xf4\xeb\x65\x9d"
        "\x26\xc8\x46\x47\x1f\x65\x51\xdb\xb2\x4f\xc6\xc0\x3a\x01\xe3\x3e\xfc"
        "\xd5\x93\x94\x72\xb6\x87\xd3\x1b\xe9\xbd\x9b\xd1\xbc\xda\x45\xbd\x22"
        "\x36\xf0\x6c\x00\x00\x00\x00\x7d\x34\x8e\xbc\xb9\xd8\x10\xd4\xdc\x3d"
        "\x55\xbb\xe4\x05\x5c\xe9\xc4\x52\x67\xda\xee\xc7\xa7\xd8\xb4\x98\xf5"
        "\x07\xe9\x33\xcc\x02\xfb\x53\xc2\xc2\x8f\xa0\x9c\xe5\xad\xa5\xde\x14"
        "\x15\x30\x97\x61\xf6\x37\x8c\x79\x4f\x8c\xe2\x3c\x1f\x7a\xdd\x4f\x65"
        "\x28\x0a\xb4\x46\xea\x2d\x13\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\xd1\xa0\x31\x3f\xf6\x3b\xc4\xe4\x46\x36\x88\xdb\x1d\x6a\xc7\xf4"
        "\x59\x5a\x02\xc8\x93\x49\xa9\x73\xf1\x18\xd9\x36\xf3\x3e\xa1\x8e\x69"
        "\xd7\x73\x9f\x45\x32\xe1\xb8\x58\x0e\xf1\x25\xb4\x7c\xf5\xb4\x02\xb6"
        "\xf2\xbe\xff\xed\x6c\xc9\xaf\xe2\xb5\x48\xc4\xdb\xc7\x83\x63\x11\x88"
        "\x18\xd9\x47\x3f\x29\xd5\x24\x44\x68\x5c\x41\x62\x0e\xea\xeb\x1f\x87"
        "\x86\xe8\x7a\xea\xf2\x87\xfb\x9b\x63\xb3\x0e\x67\x61\x50\x75\x03\xdc"
        "\xd4\x7b\x64\xf0\xb6\x15\x79\x99\xc8\x2b\xd1\x51\xbe\xe0\xc6\x7f\x3e"
        "\x66\x42\x25\xbd\x91\x7b\x38\xae\xae\x1d\xa5\x52\x4e\xef\xef\x17\x72"
        "\xd7\x59\xdf\x9e\xc9\xb4\x19\x73\x83\xf9\xa6\x62\x17\xe1\x80\xe4\x34"
        "\xe6\x50\xdd\x56\x0a\xa3\xed\x42\xac\xdd\xd4\x4d\x6f\x45\x80\x7a\x3c"
        "\x63\xe1\x59\x29\xcf\xbe\xbc\x7e\xef\x1a\x31\x9d\x31\x47\xa6\xc0\x6b"
        "\xd9\x74\x16\x8a\xc6\x89\x39\x2f\xa8\x51\xeb\xdf\x52\x4c\xa2\x33\x11"
        "\x48\xff\x7e\x85\x5c\xcc\xc1\x06\x07\x4c\xa9\x21\x53\x73\x4d\x5c\x5e"
        "\x3f\x9e\xfc\x65\x92\xb0\x8e\x0c\x07\xc7\xb5\xd4\x2e\xc7\x14\x84\xbb"
        "\x2a\x4c\x0f\x42\x93\x13\x83\x69\xf3\x9f\x9f\xa4\xa9\xcc\x60\x7b\x42"
        "\xba\x61\x02\xf9\x18\xce\x4e\x76\xd6\x6f\xba\x45\x0e\x94\x0e\xd6\xa6"
        "\xa3\x01\xa0\xb7\x61\xa9\xcd\x84\x99\x62\xfa\xe5\x05\x9b\xda\x41\x9f"
        "\xd2\xa1\x70\xea\x38\x7c\x10\xa4\xad\xa5\x89\x3f\x38\x48\x60\x69\xef"
        "\x1b\xfd\xbb\x43\x2a\xb3\x22\xc8\x87\xd7\xa9\x4f\xa9\x67\x13\x58\x33"
        "\x15\x7b\xaf\xbe\xd3\xb4\x8b\xb2\x67\xfc\x3a\xa5\x6d\x1e\x5b\x66\x41"
        "\x7a\x67\x3b\x40\x88\x4f\xc9\x1e\xc9\x55\x8e\xab\x6a\x08\x22\x2d\xfe"
        "\x37\x76\x70\x95\xb2\xd9\x4c\xda\x88\x12\x90\xd6\x01\x71\x37\x59\x5c"
        "\xdd\x53\x97\x23\x53\xf4\x85\xad\xfd\xe8\x01\x5c\xac\x0e\x1a\xcd\x64"
        "\xca\x97\xd6\x70\x23\xf7\x5a\x54\xb1\xeb\xe5\x50\x53\x65\x2a\xd1\x62"
        "\x92\xa1\x5e\x79\xdc\x58\xba\x08\x0f\x79\x5f\x1a\x54\x8d\xa6\xf6\x69"
        "\xe5\xc3\x4a\xfc\x27\x2e\x5a\x32\xe8\x5d\x5f\x44\x97\x94\x31\xea\xb3"
        "\xfc\xd8\xd3\x3d\x54\x00\x00\x00\x00\x00\x00\x00\x00\x00\xff\x1f\x3f"
        "\x6f\x4b\x33\xad\xcb\xee\x66\x73\x6b\x4b\x35\xb5\xb9\x09\xbc\x7d\xdd"
        "\x03\xf1\x7f\x5f\x64\x36\x15\x6a\x56\xc7\xe7\x7e\x08\x08\x70\x3b\x37"
        "\x0f\x0c\xb4\xf0\x00\x74\x20\x0a\xe3\xe4\xea\x06\x11\xd5\x48\xf3\x45"
        "\x82\x84\x89\x03\xe4\x45\x9d\x0a\x18\xab\x9b\x11\x3e\xbc\x61\x4f\xaf"
        "\xe4\xbd\x03\xcb\x1a\x88\x43\xe5\x92\xf1\xb1\x02\xb1\xbb\x87\xf1\x3c"
        "\x50\xa1\xdc\x5d\xf2\x23\xe5\xbb\xcd\x06\xc5\x53\x93\xf9\xc0\xe0\x8a"
        "\xb6\x50\x9b\xbe\xd0\xdf\xed\xbf\x37\x30\x9c\x99\xbf\x1e\x1f\xc7\x51"
        "\x2a\xfb\x7b\xd3\x34\x65\x33\x56\x41\x9f\x8a\xa5\x7f\x12\x24\xa5\x4a"
        "\x85\xa3\x04\x16\x57\xfb\x50\x37\xdd\xa5\xb0\xf2\xe6\xa9\x67\x3c\xc0"
        "\xd5\x1b\x28\x95\x4e\xf8\xc0\xca\x82\xe6\x9d\x19\x87\x29\xb2\xc9\x84"
        "\xa0\x4b\x0f\x6e\xf9\x48\x67\x67\xf5\x92\x84\x61\xdf\x5b\x8f\x84\xe0"
        "\xb7\x90\xfa\x7d\x90\x88\xfd\xb7\xb7\xe6\xf0\x20\xd4\xea\xe4\x20\x15"
        "\x5f\x17\x39\x30\x74\x21\xfc\x3e\x9d\x4f\xfa\xff\xff\x24\x34\xf3\xd1"
        "\x67\xd2\x4b\xea\xd3\xc6\xce\xdb\x2d\xd4\x80\xd5\xc8\xb2\x1c\x0e\xdb"
        "\x06\x89\x3c\x1f\xb1\x8e\x9e\x71\x65\x25\xf1\x15\x05\x5a\x84\xda\xca"
        "\x13\x5d\x89\x72\x28\x03\x24\xa9\xff\xd4\xe6\x36\xc8\x72\x25\xc2\x51"
        "\x2e\xb3\xe0\xfe\x65\x97\x2c\x84\x36\x15\x36\xe5\x2a\x6e\xa6\x77\xff"
        "\xcb\x4b\xf8\xfa\xc2\x00\x9f\x24\xc0\x1b\x7c\x86\xc2\x03\xce\x90\x93"
        "\xdd\x53\xb1\x54\x11\x0f\x03\x3a\x25\x03\x47\x52\xdc\x85\x61\xed\x7b"
        "\xb7\x34\x3e\x06\x9b\xa1\xad\x6f\x1d\x74\x37\xb5\x84\xd2\xc2\x92\x08"
        "\x8d\x3d\x80\xe8\x83\x4a\xe8\x76\x0c\xc0\x21\x1c\xb0\x3f\x3e\xd1\x68"
        "\x13\x1e\xba\x4c\x8a\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x19\xc2\xdb\xe8\x35\x23\xa5\x8f\x68\xe6\x6f\xa9\xfd\xf1\xd2\x87"
        "\x8b\xf2\xff\x52\x4e\x6d\xa7\xf9\x18\xe8\x7c\x1b\x1d\xe1\x7f\xf8\x07"
        "\x7b\xa2\x47\xfd\x54\x98\x31\x0a\xe5\x32\xb9\xbc\x6c\x58\x3e\xdf\xa9"
        "\x7f\x7a\x4c\x00\xcc\xe8\x55\xa2\x25\xdc\x01\x7a\xfc\x3c\x06\xe8\xa7"
        "\x2b\x62\xbd\xb6\x4e\x83\xcb\x6a\x31\x9e\xb5\x51\x34\x5c\xfb\x24\xaa"
        "\xa0\x2d\xdc\x4e\xc2\xda\xa9\x42\xdc\x6e\x23\x32\xd7\x24\xb1\x1c\x0d"
        "\x9c\x8f\xf4\xee\x94\x84\x99\x38\xf5\xd2\x31\xfd\xb5\x98\x4d\x54\x42"
        "\xb5\x64\xc0\x79\xfc\xe7\x0a\xc6\x20\xdc\xf7\x73\x96\x93\xbe\xca\x9d"
        "\xff\x66\xe9\x57\xdd\x2f\xc0\x3c\xe4\x62\xda\x31\xe7\xf7\xa6\x57\x11"
        "\x83\x87\x72\x7e\x85\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
        "\x00\x00\x00\x00\x00\x00\x00",
        5107);
    *(uint64_t*)0x20000090 = 0x20000100;
    memcpy((void*)0x20000100, "GPL\000", 4);
    *(uint32_t*)0x20000098 = 0;
    *(uint32_t*)0x2000009c = 0;
    *(uint64_t*)0x200000a0 = 0;
    *(uint32_t*)0x200000a8 = 0;
    *(uint32_t*)0x200000ac = 0;
    memset((void*)0x200000b0, 0, 16);
    *(uint32_t*)0x200000c0 = 0;
    *(uint32_t*)0x200000c4 = 0;
    *(uint32_t*)0x200000c8 = -1;
    *(uint32_t*)0x200000cc = 8;
    *(uint64_t*)0x200000d0 = 0;
    *(uint32_t*)0x200000d8 = 0;
    *(uint32_t*)0x200000dc = 0x10;
    *(uint64_t*)0x200000e0 = 0;
    *(uint32_t*)0x200000e8 = 0;
    *(uint32_t*)0x200000ec = 0;
    *(uint32_t*)0x200000f0 = -1;
    *(uint32_t*)0x200000f4 = 0;
    *(uint64_t*)0x200000f8 = 0;
    *(uint64_t*)0x20000100 = 0;
    *(uint32_t*)0x20000108 = 0x10;
    *(uint32_t*)0x2000010c = 0;
    res = syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x20000080ul, /*size=*/0x48ul);
    if (res != -1)
      r[5] = res;
    break;
  case 16:
    syscall(__NR_close, /*fd=*/-1);
    break;
  case 17:
    *(uint32_t*)0x20000040 = 9;
    syscall(__NR_bpf, /*cmd=*/0x1ful, /*arg=*/0x20000040ul, /*size=*/8ul);
    break;
  case 18:
    syscall(__NR_bpf, /*cmd=*/0x11ul, /*arg=*/0ul, /*size=*/0ul);
    break;
  case 19:
    syscall(__NR_sendmsg, /*fd=*/-1, /*msg=*/0ul, /*f=*/0ul);
    break;
  case 20:
    *(uint32_t*)0x20000240 = r[5];
    *(uint32_t*)0x20000244 = 0;
    *(uint32_t*)0x20000248 = 0x32;
    *(uint32_t*)0x2000024c = 0;
    *(uint64_t*)0x20000250 = 0x20000140;
    memcpy((void*)0x20000140,
           "\xd5\x10\xfa\xff\xff\xdb\x67\x4c\x5a\xe4\x00\x0b\x00\x94", 14);
    *(uint64_t*)0x20000258 = 0;
    *(uint32_t*)0x20000260 = 0xf000;
    *(uint32_t*)0x20000264 = 0;
    *(uint32_t*)0x20000268 = 0;
    *(uint32_t*)0x2000026c = 0;
    *(uint64_t*)0x20000270 = 0;
    *(uint64_t*)0x20000278 = 0;
    *(uint32_t*)0x20000280 = 0;
    *(uint32_t*)0x20000284 = 0;
    *(uint32_t*)0x20000288 = 0;
    syscall(__NR_bpf, /*cmd=*/0xaul, /*arg=*/0x20000240ul, /*size=*/0x50ul);
    break;
  case 21:
    syscall(__NR_write, /*fd=*/r[3], /*buf=*/0ul, /*len=*/0x37ul);
    break;
  case 22:
    *(uint32_t*)0x20000080 = 1;
    *(uint32_t*)0x20000084 = 0x80;
    *(uint8_t*)0x20000088 = 0;
    *(uint8_t*)0x20000089 = 0;
    *(uint8_t*)0x2000008a = 0;
    *(uint8_t*)0x2000008b = 0;
    *(uint32_t*)0x2000008c = 0;
    *(uint64_t*)0x20000090 = 2;
    *(uint64_t*)0x20000098 = 0;
    *(uint64_t*)0x200000a0 = 0;
    STORE_BY_BITMASK(uint64_t, , 0x200000a8, 0, 0, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200000a8, 0, 1, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200000a8, 0, 2, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200000a8, 0, 3, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200000a8, 0, 4, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200000a8, 0, 5, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200000a8, 0, 6, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200000a8, 0, 7, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200000a8, 0, 8, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200000a8, 0, 9, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200000a8, 0, 10, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200000a8, 0, 11, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200000a8, 0, 12, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200000a8, 0, 13, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200000a8, 0, 14, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200000a8, 0, 15, 2);
    STORE_BY_BITMASK(uint64_t, , 0x200000a8, 0, 17, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200000a8, 0, 18, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200000a8, 0, 19, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200000a8, 0, 20, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200000a8, 0, 21, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200000a8, 0, 22, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200000a8, 0, 23, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200000a8, 0, 24, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200000a8, 0, 25, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200000a8, 0, 26, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200000a8, 0, 27, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200000a8, 0, 28, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200000a8, 0, 29, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200000a8, 0, 30, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200000a8, 0, 31, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200000a8, 0, 32, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200000a8, 0, 33, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200000a8, 0, 34, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200000a8, 0, 35, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200000a8, 0, 36, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200000a8, 0, 37, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200000a8, 0, 38, 26);
    *(uint32_t*)0x200000b0 = 0;
    *(uint32_t*)0x200000b4 = 0;
    *(uint64_t*)0x200000b8 = 0;
    *(uint64_t*)0x200000c0 = 0;
    *(uint64_t*)0x200000c8 = 0;
    *(uint64_t*)0x200000d0 = 0;
    *(uint32_t*)0x200000d8 = 0;
    *(uint32_t*)0x200000dc = 0;
    *(uint64_t*)0x200000e0 = 0;
    *(uint32_t*)0x200000e8 = 0;
    *(uint16_t*)0x200000ec = 0;
    *(uint16_t*)0x200000ee = 0;
    *(uint32_t*)0x200000f0 = 0;
    *(uint32_t*)0x200000f4 = 0;
    *(uint64_t*)0x200000f8 = 0;
    syscall(__NR_perf_event_open, /*attr=*/0x20000080ul, /*pid=*/0, /*cpu=*/-1,
            /*group=*/-1, /*flags=*/0ul);
    break;
  case 23:
    syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0ul, /*size=*/0ul);
    break;
  case 24:
    *(uint32_t*)0x20000180 = 1;
    *(uint32_t*)0x20000184 = 0x80;
    *(uint8_t*)0x20000188 = 0;
    *(uint8_t*)0x20000189 = 0;
    *(uint8_t*)0x2000018a = 0;
    *(uint8_t*)0x2000018b = 0;
    *(uint32_t*)0x2000018c = 0;
    *(uint64_t*)0x20000190 = 0x1ff;
    *(uint64_t*)0x20000198 = 0;
    *(uint64_t*)0x200001a0 = 0;
    STORE_BY_BITMASK(uint64_t, , 0x200001a8, 0, 0, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200001a8, 0, 1, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200001a8, 0, 2, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200001a8, 0, 3, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200001a8, 0, 4, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200001a8, 0, 5, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200001a8, 0, 6, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200001a8, 0, 7, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200001a8, 0, 8, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200001a8, 0, 9, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200001a8, 0, 10, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200001a8, 0, 11, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200001a8, 0, 12, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200001a8, 0, 13, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200001a8, 0, 14, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200001a8, 0, 15, 2);
    STORE_BY_BITMASK(uint64_t, , 0x200001a8, 0, 17, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200001a8, 0, 18, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200001a8, 0, 19, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200001a8, 0, 20, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200001a8, 0, 21, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200001a8, 0, 22, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200001a8, 0, 23, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200001a8, 0, 24, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200001a8, 0, 25, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200001a8, 0, 26, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200001a8, 0, 27, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200001a8, 0, 28, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200001a8, 0, 29, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200001a8, 0, 30, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200001a8, 0, 31, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200001a8, 0, 32, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200001a8, 0, 33, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200001a8, 0, 34, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200001a8, 0, 35, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200001a8, 0, 36, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200001a8, 0, 37, 1);
    STORE_BY_BITMASK(uint64_t, , 0x200001a8, 0, 38, 26);
    *(uint32_t*)0x200001b0 = 0;
    *(uint32_t*)0x200001b4 = 0;
    *(uint64_t*)0x200001b8 = 0;
    *(uint64_t*)0x200001c0 = 0;
    *(uint64_t*)0x200001c8 = 0;
    *(uint64_t*)0x200001d0 = 0;
    *(uint32_t*)0x200001d8 = 0;
    *(uint32_t*)0x200001dc = 0;
    *(uint64_t*)0x200001e0 = 0;
    *(uint32_t*)0x200001e8 = 0;
    *(uint16_t*)0x200001ec = 0;
    *(uint16_t*)0x200001ee = 0;
    *(uint32_t*)0x200001f0 = 0;
    *(uint32_t*)0x200001f4 = 0;
    *(uint64_t*)0x200001f8 = 0;
    res = syscall(__NR_perf_event_open, /*attr=*/0x20000180ul, /*pid=*/0,
                  /*cpu=*/0xaffffffffffffffful, /*group=*/-1, /*flags=*/0ul);
    if (res != -1)
      r[6] = res;
    break;
  case 25:
    memcpy((void*)0x200004c0, "\002;\345\b\000\000\234\000\000\000\000\000\000",
           13);
    syscall(__NR_ioctl, /*fd=*/r[6], /*cmd=*/0x5452, /*filter=*/0x200004c0ul);
    break;
  case 26:
    *(uint32_t*)0x200000c0 = 6;
    *(uint32_t*)0x200000c4 = 0xb;
    *(uint64_t*)0x200000c8 = 0x200002c0;
    memcpy((void*)0x200002c0,
           "\x18\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
           "\x18\x01\x00\x00\x20\x20\x70\x25\x00\x00\x00\x00\x00\x20\x20\x20"
           "\x7b\x1a\xf8\xff\x00\x55\x00\x00\xbf\xa1\x00\x00\x00\x00\x00\x00"
           "\x07\x01\x00\x00\xf8\xff\xff\xff\xb7\x02\x00\x00\x08\x00\x00\x00"
           "\xb7\x03\x00\x00\x69\x00\x00\x00\x85\x00\x00\x00\x06\x00\x80\x00"
           "\x95\x00\x00\x00\x00\x00\x00\x00\x56\x4b",
           90);
    *(uint64_t*)0x200000d0 = 0x20000200;
    memcpy((void*)0x20000200, "GPL\000", 4);
    *(uint32_t*)0x200000d8 = 0;
    *(uint32_t*)0x200000dc = 0;
    *(uint64_t*)0x200000e0 = 0;
    *(uint32_t*)0x200000e8 = 0;
    *(uint32_t*)0x200000ec = 0;
    memset((void*)0x200000f0, 0, 16);
    *(uint32_t*)0x20000100 = 0;
    *(uint32_t*)0x20000104 = 0x4000000;
    *(uint32_t*)0x20000108 = -1;
    *(uint32_t*)0x2000010c = 0;
    *(uint64_t*)0x20000110 = 0;
    *(uint32_t*)0x20000118 = 0;
    *(uint32_t*)0x2000011c = 0;
    *(uint64_t*)0x20000120 = 0;
    *(uint32_t*)0x20000128 = 0;
    *(uint32_t*)0x2000012c = 0;
    *(uint32_t*)0x20000130 = 0;
    *(uint32_t*)0x20000134 = 0;
    *(uint64_t*)0x20000138 = 0;
    *(uint64_t*)0x20000140 = 0;
    *(uint32_t*)0x20000148 = 0;
    *(uint32_t*)0x2000014c = 0;
    syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x200000c0ul, /*size=*/0x90ul);
    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;
  if ((reason = setup_binfmt_misc()))
    printf("the reproducer may not work as expected: binfmt_misc setup failed: "
           "%s\n",
           reason);
  if ((reason = setup_usb()))
    printf("the reproducer may not work as expected: USB injection setup "
           "failed: %s\n",
           reason);
  if ((reason = setup_swap()))
    printf("the reproducer may not work as expected: swap setup failed: %s\n",
           reason);
  for (procid = 0; procid < 5; procid++) {
    if (fork() == 0) {
      use_temporary_dir();
      do_sandbox_none();
    }
  }
  sleep(1000000);
  return 0;
}