// https://syzkaller.appspot.com/bug?id=9d15d4193db9a38fbd144cf76ef542e7096b7d3f
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

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

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

#ifndef __NR_memfd_create
#define __NR_memfd_create 319
#endif

static unsigned long long procid;

static __thread int clone_ongoing;
static __thread int skip_segv;
static __thread jmp_buf segv_env;

static void segv_handler(int sig, siginfo_t* info, void* ctx)
{
  if (__atomic_load_n(&clone_ongoing, __ATOMIC_RELAXED) != 0) {
    exit(sig);
  }
  uintptr_t addr = (uintptr_t)info->si_addr;
  const uintptr_t prog_start = 1 << 20;
  const uintptr_t prog_end = 100 << 20;
  int skip = __atomic_load_n(&skip_segv, __ATOMIC_RELAXED) != 0;
  int valid = addr < prog_start || addr > prog_end;
  if (skip && valid) {
    _longjmp(segv_env, 1);
  }
  exit(sig);
}

static void install_segv_handler(void)
{
  struct sigaction sa;
  memset(&sa, 0, sizeof(sa));
  sa.sa_handler = SIG_IGN;
  syscall(SYS_rt_sigaction, 0x20, &sa, NULL, 8);
  syscall(SYS_rt_sigaction, 0x21, &sa, NULL, 8);
  memset(&sa, 0, sizeof(sa));
  sa.sa_sigaction = segv_handler;
  sa.sa_flags = SA_NODEFER | SA_SIGINFO;
  sigaction(SIGSEGV, &sa, NULL);
  sigaction(SIGBUS, &sa, NULL);
}

#define NONFAILING(...)                                                        \
  ({                                                                           \
    int ok = 1;                                                                \
    __atomic_fetch_add(&skip_segv, 1, __ATOMIC_SEQ_CST);                       \
    if (_setjmp(segv_env) == 0) {                                              \
      __VA_ARGS__;                                                             \
    } else                                                                     \
      ok = 0;                                                                  \
    __atomic_fetch_sub(&skip_segv, 1, __ATOMIC_SEQ_CST);                       \
    ok;                                                                        \
  })

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

static struct nlmsg nlmsg;

#define DEVLINK_FAMILY_NAME "devlink"

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

static struct nlmsg nlmsg2;

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

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

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

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

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

error:
  close(sock);
}

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

#define MAX_FDS 30

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

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

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

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

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

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

#define ZLIB_HEADER_WIDTH 2

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

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

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

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

static long syz_mount_image(volatile long fsarg, volatile long dir,
                            volatile long flags, volatile long optsarg,
                            volatile long change_dir,
                            volatile unsigned long size, volatile long image)
{
  unsigned char* data = (unsigned char*)image;
  int res = -1, err = 0, need_loop_device = !!size;
  char* mount_opts = (char*)optsarg;
  char* target = (char*)dir;
  char* fs = (char*)fsarg;
  char* source = NULL;
  char loopname[64];
  if (need_loop_device) {
    int loopfd;
    memset(loopname, 0, sizeof(loopname));
    snprintf(loopname, sizeof(loopname), "/dev/loop%llu", procid);
    if (setup_loop_device(data, size, loopname, &loopfd) == -1)
      return -1;
    close(loopfd);
    source = loopname;
  }
  mkdir(target, 0777);
  char opts[256];
  memset(opts, 0, sizeof(opts));
  if (strlen(mount_opts) > (sizeof(opts) - 32)) {
  }
  strncpy(opts, mount_opts, sizeof(opts) - 32);
  if (strcmp(fs, "iso9660") == 0) {
    flags |= MS_RDONLY;
  } else if (strncmp(fs, "ext", 3) == 0) {
    bool has_remount_ro = false;
    char* remount_ro_start = strstr(opts, "errors=remount-ro");
    if (remount_ro_start != NULL) {
      char after = *(remount_ro_start + strlen("errors=remount-ro"));
      char before = remount_ro_start == opts ? '\0' : *(remount_ro_start - 1);
      has_remount_ro = ((before == '\0' || before == ',') &&
                        (after == '\0' || after == ','));
    }
    if (strstr(opts, "errors=panic") || !has_remount_ro)
      strcat(opts, ",errors=continue");
  } else if (strcmp(fs, "xfs") == 0) {
    strcat(opts, ",nouuid");
  } else if (strncmp(fs, "gfs2", 4) == 0 &&
             (strstr(opts, "errors=panic") || strstr(opts, "debug"))) {
    strcat(opts, ",errors=withdraw");
  }
  res = mount(source, target, fs, flags, opts);
  if (res == -1) {
    err = errno;
    goto error_clear_loop;
  }
  res = open(target, O_RDONLY | O_DIRECTORY);
  if (res == -1) {
    err = errno;
    goto error_clear_loop;
  }
  if (change_dir) {
    res = chdir(target);
    if (res == -1) {
      err = errno;
    }
  }

error_clear_loop:
  if (need_loop_device)
    reset_loop_device(loopname);
  errno = err;
  return res;
}

static void mount_cgroups(const char* dir, const char** controllers, int count)
{
  if (mkdir(dir, 0777)) {
    return;
  }
  char enabled[128] = {0};
  int i = 0;
  for (; i < count; i++) {
    if (mount("none", dir, "cgroup", 0, controllers[i])) {
      continue;
    }
    umount(dir);
    strcat(enabled, ",");
    strcat(enabled, controllers[i]);
  }
  if (enabled[0] == 0) {
    if (rmdir(dir) && errno != EBUSY)
      exit(1);
    return;
  }
  if (mount("none", dir, "cgroup", 0, enabled + 1)) {
    if (rmdir(dir) && errno != EBUSY)
      exit(1);
  }
  if (chmod(dir, 0777)) {
  }
}

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

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

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

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

static void initialize_cgroups()
{
  if (mkdir("./syz-tmp/newroot/syzcgroup", 0700))
    exit(1);
  if (mkdir("./syz-tmp/newroot/syzcgroup/unified", 0700))
    exit(1);
  if (mkdir("./syz-tmp/newroot/syzcgroup/cpu", 0700))
    exit(1);
  if (mkdir("./syz-tmp/newroot/syzcgroup/net", 0700))
    exit(1);
  unsigned bind_mount_flags = MS_BIND | MS_REC | MS_PRIVATE;
  if (mount("/syzcgroup/unified", "./syz-tmp/newroot/syzcgroup/unified", NULL,
            bind_mount_flags, NULL)) {
  }
  if (mount("/syzcgroup/cpu", "./syz-tmp/newroot/syzcgroup/cpu", NULL,
            bind_mount_flags, NULL)) {
  }
  if (mount("/syzcgroup/net", "./syz-tmp/newroot/syzcgroup/net", NULL,
            bind_mount_flags, NULL)) {
  }
}

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

static void setup_gadgetfs()
{
  if (mkdir("/dev/gadgetfs", 0777)) {
  }
  if (mount("gadgetfs", "/dev/gadgetfs", "gadgetfs", 0, NULL)) {
  }
}

static void setup_fusectl()
{
  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);
  if (getppid() == 1)
    exit(1);
  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);
  sandbox_common();
  drop_caps();
  initialize_netdevices_init();
  if (unshare(CLONE_NEWNET)) {
  }
  write_file("/proc/sys/net/ipv4/ping_group_range", "0 65535");
  initialize_netdevices();
  sandbox_common_mount_tmpfs();
  loop();
  exit(1);
}

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

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

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

static void setup_loop()
{
  setup_cgroups_loop();
}

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

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

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

static void 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();
      close_fds();
      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[1] = {0xffffffffffffffff};

void execute_one(void)
{
  intptr_t res = 0;
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  NONFAILING(memcpy((void*)0x200000000040, "ext4\000", 5));
  NONFAILING(memcpy((void*)0x200000000000, "./file1\000", 8));
  NONFAILING(memcpy((void*)0x200000000380, "delalloc", 8));
  NONFAILING(*(uint8_t*)0x200000000388 = 0x2c);
  NONFAILING(memcpy((void*)0x200000000389, "data_err=abort", 14));
  NONFAILING(*(uint8_t*)0x200000000397 = 0x2c);
  NONFAILING(memcpy((void*)0x200000000398, "barrier", 7));
  NONFAILING(*(uint8_t*)0x20000000039f = 0x3d);
  NONFAILING(sprintf((char*)0x2000000003a0, "0x%016llx", (long long)2));
  NONFAILING(*(uint8_t*)0x2000000003b2 = 0x2c);
  NONFAILING(memcpy((void*)0x2000000003b3, "dioread_lock", 12));
  NONFAILING(*(uint8_t*)0x2000000003bf = 0x2c);
  NONFAILING(memcpy((void*)0x2000000003c0, "data_err=ignore", 15));
  NONFAILING(*(uint8_t*)0x2000000003cf = 0x2c);
  NONFAILING(memcpy((void*)0x2000000003d0, "max_dir_size_kb", 15));
  NONFAILING(*(uint8_t*)0x2000000003df = 0x3d);
  NONFAILING(sprintf((char*)0x2000000003e0, "0x%016llx", (long long)0x4007b1));
  NONFAILING(*(uint8_t*)0x2000000003f2 = 0x2c);
  NONFAILING(memcpy((void*)0x2000000003f3, "data_err=ignore", 15));
  NONFAILING(*(uint8_t*)0x200000000402 = 0x2c);
  NONFAILING(memcpy((void*)0x200000000403, "grpquota", 8));
  NONFAILING(*(uint8_t*)0x20000000040b = 0x2c);
  NONFAILING(memcpy((void*)0x20000000040c, "nobh", 4));
  NONFAILING(*(uint8_t*)0x200000000410 = 0x2c);
  NONFAILING(memcpy((void*)0x200000000411, "user_xattr", 10));
  NONFAILING(*(uint8_t*)0x20000000041b = 0x2c);
  NONFAILING(memcpy((void*)0x20000000041c, "bh", 2));
  NONFAILING(*(uint8_t*)0x20000000041e = 0x2c);
  NONFAILING(memcpy((void*)0x20000000041f, "dioread_nolock", 14));
  NONFAILING(*(uint8_t*)0x20000000042d = 0x2c);
  NONFAILING(*(uint8_t*)0x20000000042e = 0);
  NONFAILING(memcpy(
      (void*)0x200000000a40,
      "\x78\x9c\xec\xdd\xdf\x6b\x5b\x55\x1c\x00\xf0\xef\x4d\xdb\xfd\xd6\x75\x30"
      "\x86\x8a\x48\x61\x0f\x4e\xe6\xd2\xb5\xf5\xc7\x04\x1f\xe6\xa3\xe8\x70\xa0"
      "\xef\x33\xb4\x77\x65\x34\x59\x46\x93\x8e\xb5\x0e\xdc\x1e\xdc\x8b\x2f\x32"
      "\x04\x11\x07\xe2\xbb\xbe\xfb\x38\xfc\x07\xfc\x2b\x06\x3a\x18\x32\x8a\x3e"
      "\xf8\x12\xb9\xe9\x4d\x97\xad\x49\x9b\x75\xd9\xd2\x99\xcf\x07\x6e\x39\x27"
      "\xf7\x26\xe7\x7e\x73\xef\xf7\xf4\xdc\x9c\x1b\x12\xc0\xd0\x9a\xc8\xfe\x14"
      "\x22\x5e\x8e\x88\x6f\x92\x88\x83\x11\x91\xe4\xeb\x46\x23\x5f\x39\xb1\xb6"
      "\xdd\xea\xfd\xab\xb3\xd9\x92\x44\xa3\xf1\xe9\x5f\x49\x73\xbb\xac\xde\x7a"
      "\xad\xd6\xf3\xf6\xe7\x95\x97\x22\xe2\xb7\xaf\x22\x8e\x17\x36\xb6\x5b\x5b"
      "\x5e\x59\x28\x95\xcb\xe9\x62\x5e\x9f\xac\x57\x2e\x4d\xd6\x96\x57\x4e\x5c"
      "\xa8\x94\xe6\xd3\xf9\xf4\xe2\xf4\xcc\xcc\xa9\xb7\x67\xa6\xdf\x7b\xf7\x9d"
      "\xbe\xc5\xfa\xc6\xd9\x7f\xbe\xff\xe4\xf6\x87\xa7\xbe\x3e\xba\xfa\xdd\x2f"
      "\x77\x0f\xdd\x4c\xe2\x74\x1c\xc8\xd7\xb5\xc7\xf1\x04\xae\xb5\x57\x26\x62"
      "\x22\x7f\x4f\xc6\xe2\xf4\x23\x1b\x4e\xf5\xa1\xb1\x9d\x24\x19\xf4\x0e\xb0"
      "\x2d\x23\x79\x9e\x8f\x45\xd6\x07\x1c\x8c\x91\x3c\xeb\x81\xff\xbf\x2f\x23"
      "\xa2\x01\x0c\xa9\x44\xfe\xc3\x90\x6a\x8d\x03\x5a\xd7\xf6\x7d\xba\x0e\x7e"
      "\x6e\xdc\xfb\x60\xed\x02\x68\x63\xfc\xa3\x6b\x9f\x8d\xc4\x9e\xe6\xb5\xd1"
      "\xbe\xd5\xe4\xa1\x2b\xa3\xec\x7a\x77\xbc\x0f\xed\x67\x6d\xfc\xfa\xe7\xad"
      "\x9b\xd9\x12\xfd\xfb\x1c\x02\x60\x4b\xd7\xae\x47\xc4\xc9\xd1\xd1\x8d\xfd"
      "\x5f\x92\xf7\x7f\xdb\x77\xb2\x87\x6d\x1e\x6d\x43\xff\x07\xcf\xce\xed\x6c"
      "\xfc\xf3\x66\xa7\xf1\x4f\x61\x7d\xfc\x13\x1d\xc6\x3f\xfb\x3b\xe4\xee\x76"
      "\x6c\x9d\xff\x85\xbb\x7d\x68\xa6\xab\x6c\xfc\xf7\x7e\xc7\xf1\xef\xfa\xa4"
      "\xd5\xf8\x48\x5e\x7b\xa1\x39\xe6\x1b\x4b\xce\x5f\x28\xa7\x59\xdf\xf6\x62"
      "\x44\x1c\x8b\xb1\xdd\x59\x7d\xb3\xf9\x9c\x53\xab\x77\x1a\xdd\xd6\xb5\x8f"
      "\xff\xb2\x25\x6b\xbf\x35\x16\xcc\xf7\xe3\xee\xe8\xee\x87\x9f\x33\x57\xaa"
      "\x97\x9e\x24\xe6\x76\xf7\xae\x47\xbc\xd2\x71\xfc\x9b\xac\x1f\xff\xa4\xc3"
      "\xf1\xcf\xde\x8f\xb3\x3d\xb6\x71\x24\xbd\xf5\x5a\xb7\x75\x5b\xc7\xff\x74"
      "\x35\x7e\x8a\x78\xbd\xe3\xf1\x7f\x30\xa3\x95\x6c\x3e\x3f\x39\xd9\x3c\x1f"
      "\x26\x5b\x67\xc5\x46\x7f\xdf\x38\xf2\x7b\xb7\xf6\x07\x1d\x7f\x76\xfc\xf7"
      "\x6d\x1e\xff\x78\xd2\x3e\x5f\x5b\x7b\xfc\x36\x7e\xdc\xf3\x6f\xda\x6d\xdd"
      "\x43\xf1\x47\xef\xe7\xff\xae\xe4\xb3\x66\x79\x57\xfe\xd8\x95\x52\xbd\xbe"
      "\x38\x15\xb1\x2b\xf9\x78\xe3\xe3\xd3\x0f\x9e\xdb\xaa\xb7\xb6\xcf\xe2\x3f"
      "\x76\x74\xf3\xfe\xaf\xd3\xf9\xbf\x37\x22\x3e\xef\x31\xfe\x1b\x87\x7f\x7e"
      "\xb5\xa7\xf8\x07\x74\xfc\xe7\x1e\xeb\xf8\x3f\x7e\xe1\xce\x47\x5f\xfc\xd0"
      "\xad\xfd\xde\xfa\xbf\xb7\x9a\xa5\x63\xf9\x23\xbd\xf4\x7f\xbd\xee\xe0\x93"
      "\xbc\x77\x00\x00\x00\x00\x00\x00\xb0\xd3\x14\x22\xe2\x40\x24\x85\xe2\x7a"
      "\xb9\x50\x28\x16\xd7\xee\xef\x38\x1c\xfb\x0a\xe5\x6a\xad\x7e\xfc\x7c\x75"
      "\xe9\xe2\x5c\x34\xbf\x2b\x3b\x1e\x63\x85\xd6\x4c\xf7\xc1\xb6\xfb\x21\xa6"
      "\xf2\xfb\x61\x5b\xf5\xe9\x47\xea\x33\x11\x71\x28\x22\xbe\x1d\xd9\xdb\xac"
      "\x17\x67\xab\xe5\xb9\x41\x07\x0f\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x3b\xc4\xfe\x2e\xdf\xff\xcf\xfc\x31\x32\xe8\xbd\x03"
      "\x9e\x3a\x3f\xf9\x0d\xc3\x6b\xcb\xfc\xef\xc7\x2f\x3d\x01\x3b\x92\xff\xff"
      "\x30\xbc\xe4\x3f\x0c\x2f\xf9\x0f\xc3\x4b\xfe\xc3\xf0\x92\xff\x30\xbc\xe4"
      "\x3f\x0c\x2f\xf9\x0f\xc3\x4b\xfe\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x40\x5f\x9d\x3d\x73\x26\x5b"
      "\x1a\xab\xf7\xaf\xce\x66\xf5\xb9\xcb\xcb\x4b\x0b\xd5\xcb\x27\xe6\xd2\xda"
      "\x42\xb1\xb2\x34\x5b\x9c\xad\x2e\x5e\x2a\xce\x57\xab\xf3\xe5\xb4\x38\x5b"
      "\xad\x6c\xf5\x7a\xe5\x6a\xf5\xd2\xd4\x74\x2c\x5d\x99\xac\xa7\xb5\xfa\x64"
      "\x6d\x79\xe5\x5c\xa5\xba\x74\xb1\x7e\xee\x42\xa5\x34\x9f\x9e\x4b\xc7\x9e"
      "\x49\x54\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xf0"
      "\x7c\xa9\x2d\xaf\x2c\x94\xca\xe5\x74\x51\x41\x61\x5b\x85\xd1\x9d\xb1\x1b"
      "\x0a\x7d\x2e\x0c\xba\x67\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x80\x07\xfe\x0b\x00\x00\xff\xff\xe8\x06\x37\xb1",
      1363));
  NONFAILING(syz_mount_image(
      /*fs=*/0x200000000040, /*dir=*/0x200000000000,
      /*flags=MS_LAZYTIME|MS_STRICTATIME|MS_NOSUID|MS_NODEV|MS_MANDLOCK*/
      0x3000046, /*opts=*/0x200000000380, /*chdir=*/1, /*size=*/0x553,
      /*img=*/0x200000000a40));
  NONFAILING(memcpy((void*)0x200000000140, "./file0\000", 8));
  NONFAILING(memcpy((void*)0x200000000100, "./file0\000", 8));
  NONFAILING(memcpy((void*)0x200000000040, "incremental-fs\000", 15));
  syscall(__NR_mount, /*src=*/0x200000000140ul, /*dst=*/0x200000000100ul,
          /*type=*/0x200000000040ul, /*flags=*/0ul, /*opts=*/0ul);
  NONFAILING(memcpy((void*)0x200000000040, "./bus\000", 6));
  syscall(__NR_creat, /*file=*/0x200000000040ul, /*mode=*/0ul);
  NONFAILING(memcpy((void*)0x200000000380, "/dev/loop", 9));
  NONFAILING(*(uint8_t*)0x200000000389 = 0x30 + procid * 1);
  NONFAILING(*(uint8_t*)0x20000000038a = 0);
  NONFAILING(memcpy((void*)0x200000000180, "./bus\000", 6));
  syscall(
      __NR_mount, /*src=*/0x200000000380ul, /*dst=*/0x200000000180ul,
      /*type=*/0ul,
      /*flags=MS_UNBINDABLE|MS_POSIXACL|MS_REC|MS_SYNCHRONOUS|MS_SILENT|0x601004*/
      0x63d014ul, /*data=*/0ul);
  NONFAILING(memcpy((void*)0x200000000080, "./bus\000", 6));
  res = syscall(__NR_open, /*file=*/0x200000000080ul,
                /*flags=O_SYNC|O_NOCTTY|O_DIRECT|O_CLOEXEC|O_RDWR*/ 0x185102ul,
                /*mode=*/0ul);
  if (res != -1)
    r[0] = res;
  syscall(__NR_mmap, /*addr=*/0x200000000000ul, /*len=*/0x800000ul,
          /*prot=PROT_WRITE*/ 2ul,
          /*flags=MAP_STACK|MAP_POPULATE|MAP_FIXED|MAP_SHARED*/ 0x28011ul,
          /*fd=*/r[0], /*offset=*/0ul);
  NONFAILING(*(uint32_t*)0x200000001f00 = 8);
  NONFAILING(memcpy(
      (void*)0x200000001f04,
      "\x45\x5e\x99\xf0\x1d\x7d\x7e\xc0\xb7\x92\x64\xc1\xc8\x33\x98\xe0\x8b\x17"
      "\xc1\xa5\xce\xbd\x63\xf4\x25\xe6\xe9\xba\xce\x7f\x6f\x52\xa2\x8f\x77\x85"
      "\x42\xe5\x1b\x13\x05\xf3\x7d\x85\x57\x73\x3a\x54\x87\x22\xa5\xfa\xdc\xf5"
      "\xe0\x64\xa1\xae\x67\x35\xd8\x63\x5d\x14\x65\x2e\xd5\xc0\x18\xb4\x46\x9e"
      "\xf4\x00\x38\xb0\xfc\xe2\x2f\x8f\x44\xdb\xb6\x42\x76\xb4\x2a\xb6\x12\x03"
      "\xfd\xfc\x4a\x1f\x5e\x98\x1b\x0f\x90\x1e\xa8\x4c\x16\x28\xa7\xe8\x5e\xdc"
      "\x42\x93\x25\x96\xa4\x8a\x76\x8f\x54\x5a\x8c\x3b\xa2\x0d\x0b\xcc\x0f\x2a"
      "\x12\x6d\x3a\x35\x19\x13\x43\xdd\x27\x11\x3a\xca\x34\x03\x7a\x52\x50\xac"
      "\x97\xd0\x08\xf3\x28\x7f\xd6\xa9\x5f\x7f\xfd\xe1\xad\x03\x27\x9d\x24\x05"
      "\x2f\x17\x14\x10\x1d\x0c\xdc\xe8\x1d\xc6\x95\x3a\x47\x29\x0c\x31\xc4\x67"
      "\xdc\xe8\x23\x2e\xdd\xe1\xf5\x72\x93\x89\xd2\x39\xd0\x11\x55\xa9\x0b\x71"
      "\x06\x95\xb1\x21\x9b\xdb\xaf\x54\xbe\x4d\xb2\x90\x3d\xb1\xf2\x00\xf5\x72"
      "\x5d\x74\xc1\x68\x12\x71\x81\xda\xe3\xbe\xdc\x79\x84\x0a\x9c\x4f\xb9\x07"
      "\x7a\xd4\x4e\xf5\x33\x9d\x17\x02\x02\x6e\x09\x83\xff\xb1\xe0\x4b\xa1\x06"
      "\x30\x85\x35\x62\xd3\x7e\x35\xec\x27\x24\x9b\x77\x94\xc5\xd1\x6f\xb4\x66"
      "\x17\x39\x94\x8a\xff\x20\x25\xe5\x67\x64\x6e\x7a\xd9\x58\x06\xac\x67\xdf"
      "\x08\xaa\xaf\x0f\x60\x8f\x38\xfe\x3e\x2d\x58\xfe\xcf\xf3\xc8\x85\xa8\xce"
      "\x59\x93\x51\x85\x4d\x15\xf8\x22\x03\x88\x7d\x8c\xf0\x5b\xa8\xd9\x81\x43"
      "\xc8\xf9\x23\xe7\x91\xff\xa4\x75\xe8\xb2\xa2\x47\xdd\x49\x66\x3d\x6a\x2a"
      "\xbc\x17\x45\xf8\xe8\xd2\x3b\x1e\x9f\xb8\xc2\xe8\x80\x5b\xaf\xda\x80\x2c"
      "\xe5\xdc\x84\x76\x31\x72\x71\xbe\x13\xbf\x45\x4e\x9d\x11\x73\x6f\x3e\xe3"
      "\xd8\x30\x41\x93\x94\x85\x61\x47\xf9\x5e\xd8\x4e\x11\xc7\xa5\xa9\x8c\xaa"
      "\x2c\x43\xe0\x56\x87\x58\x83\xcd\x2a\x71\x97\x97\x58\xdb\xff\x78\x5a\xbd"
      "\x0a\xd1\xa4\x94\x59\xe4\x94\xcb\x40\x9d\x4e\xfe\x0f\x6c\x92\x77\x1e\xe8"
      "\x39\x38\x79\x9d\xaa\xdb\x2b\xf9\x8c\xcb\xdf\x25\x17\xcd\xbd\x5b\xcb\xff"
      "\x91\x9e\x51\xd2\x25\xc5\xb0\xd7\xf4\x55\xdf\xbb\xfb\x9e\x2a\xb2\x11\x1a"
      "\x17\xae\x55\x95\x94\x95\xd8\xd7\x66\xc7\xcd\x62\xef\xa3\x3d\xbf\x1d\x74"
      "\x23\x8c\x25\x7f\x47\x51\x6b\x74\xec\xdc\x8e\x46\x85\xe4\x61\xde\x05\x79"
      "\x23\x7c\xae\x86\x6d\xfe\x2a\xf4\x56\x0a\x93\x76\x29\x7a\xcf\x56\xc3\x9b"
      "\x96\xbd\x4c\x63\xc9\xce\x32\x24\x37\x03\x42\x3b\xd4\xca\x0a\x2f\xb1\x1c"
      "\x01\x5e\x5b\x07\x9d\x5b\x19\x20\x36\xfa\x66\x3b\xab\x46\x66\x57\x10\x53"
      "\x3e\x16\x7b\x63\xc3\xb3\xcd\xbb\xf9\x8f\xe5\xbf\x65\xe9\x87\x14\x4a\x6c"
      "\x2b\x62\x51\xb7\xef\x59\x23\x8e\xc9\xa1\x99\x4c\xc9\x66\xea\x7e\x05\x2c"
      "\x5c\xe4\x07\x24\xad\xf1\x4e\xa1\x00\xf5\xe3\x04\xb0\xe8\xa5\x77\x39\x84"
      "\xbb\xe9\xea\x74\xa9\xaa\xb9\xb0\x06\xd3\xff\x2a\xcf\x84\x8e\x4e\x18\x13"
      "\xcf\xa5\x13\xcf\x97\x52\xf5\xa0\xc5\x13\x4d\x8a\x44\x87\x33\xb8\x24\x78"
      "\x63\xbb\x68\x30\xa4\x7c\xe8\x1c\xa8\x07\x42\xd5\x54\xb8\xb2\xb3\x76\x0d"
      "\xdf\x64\x0d\x89\x58\x46\x84\x5d\x19\x9c\x81\x70\x10\x8c\x98\x90\x8b\xfc"
      "\x5a\x8a\x4c\x4e\xad\x5a\xd7\xcf\x99\xbe\x82\x53\xa1\x4b\xfb\x59\x8b\xf1"
      "\x0f\x39\xf7\xc9\x56\x21\xea\xc1\x03\xd3\xe1\xea\xa8\x22\xb8\x3c\x64\x62"
      "\xe6\x42\x8e\xe6\xf8\xdd\x0d\xc7\xd2\xbb\xa4\x04\x80\xf2\x28\x36\xd4\x43"
      "\xc6\x55\xf8\x3e\xc0\x90\x5f\xc9\x98\x53\x2a\xb6\x73\x65\x33\xf7\x96\x66"
      "\x3f\xf4\x1e\x82\x0c\x23\x61\xf5\x54\x92\x11\x10\xe1\xbe\x5d\x9a\xf4\x7e"
      "\xea\xe2\x62\x40\x43\x43\xc0\xb4\x28\x36\x26\x1a\x71\x6f\x5e\x4c\xa8\xac"
      "\x38\xb9\x0d\x2a\x46\x1f\x9c\x9a\xe0\x88\xce\x43\x75\x49\xd0\x86\xec\xa6"
      "\x0b\x61\x71\xc0\xab\x0e\x98\xdb\x0c\x0b\x21\x2b\x6d\xc3\xb0\x6d\xaf\x78"
      "\xc8\x91\x2d\x22\xd4\x57\xdc\x48\xbd\x6a\x0a\xb3\x96\x5f\x93\xb3\xdf\xba"
      "\xb1\x62\x6f\x2d\xd0\x5b\x3a\xee\x0b\x04\xda\x6a\xa8\x08\xa3\x9c\x41\x04"
      "\x1f\x11\xb5\x5c\xfa\x3d\x44\x72\xa4\x98\x5f\x6a\x22\x4d\x58\xee\x82\x03"
      "\xc0\x5d\x6d\xb2\x08\xd5\x7e\x93\xee\xde\x51\x11\x0d\xd3\x6b\xcd\x66\x45"
      "\xbe\x26\x6d\xe2\xa7\x1d\x96\x0d\x81\xce\x1d\x9b\x66\x44\xe6\xbd\x94\xd7"
      "\x90\xf5\x29\x4a\x0a\xcf\x78\x9f\x43\xb2\x1a\x83\xc8\x17\xb0\xd1\x36\x90"
      "\xeb\x9a\x83\xc6\x3e\x87\x55\x85\x80\x63\xc6\x1b\xfa\x42\x0f\x37\x2d\xb6"
      "\x87\xa9\x19\xeb\x67\x2f\x25\xc2\x2d\xcc\xfc\xaf\x22\xf9\x3d\x17\xf3\x33"
      "\x5e\x30\x42\xb6\xba\x1b\xea\xb5\x4d\xc2\xc6\xaa\xdf\xa1\x67\x34\x0a\xa5"
      "\xb3\x71\x5f\x66\xd1\x47\x60\x48\xb0\x8e\x58\x10\xf1\xc7\x90\xd6\x18\x6b"
      "\x5f\x42\xf3\x10\x35\x87\x17\xfa\x8c\xdc\x2a\x31\x7f\x92\x6c\x81\x1b\x8f"
      "\xf3\x6c\x72\x7b\x4a\x48\x5a\x5b\x08\x75\x20\x78\x77\xae\x41\x65\x5a\x10"
      "\x7e\x0f\xf3\x35\xb7\xb9\xc2\x42\x83\x12\x59\x84\x2c\x0e\xed\xe5\x42\xbd"
      "\xc6\x4d\xf2\xa2\xe5\xf2\xca\xde\x65\x1b\xc5\x7e\x72\x28\x3f\x23\x9b\xb1"
      "\xd6\x9a\x29\x80\x44\xb8\x93\x43\xf8\xbe\x1a\xec\xb4\x6d\xbc\x68\x5a\x3b"
      "\x3e\x26\xc3\xe3\x2d\x30\x45\xe6\x01\xb2\x09\xaf\x08\x6c\x03\xa3\xfa\xd6"
      "\x09\x44\xce\x9f\x70\x27\xf4\x2d\x9c\xce\xfb\xe2\x35\x3e\x5b\xbf\xdd\x6e"
      "\xa7\x71\x69\x3c\x13\x14\xb7\x02\xdb\x9f\x8c\xc5\xce\x5a\xd0\x5e\xf9\x9f"
      "\x54\xda\x13\x13\x9b\x83\x2d\x6b\x98\x32\x61\xaa\xd7\xe0\xf6\xcc\x39\x54"
      "\x54\x7b\x90\x2b\x51\xcf\x34\x5e\x0d\xf0\x31\x10\x97\xbe\x34\xb3\x0e\x4c"
      "\xa7\x13\xdc\xbc\x52\x0e\x52\x2f\x7c\x6a\xee\xe5\xb3\x10\x66\xcc\xc7\x98"
      "\x76\xad\xca\x6f\x55\x6c\xb1\xb2\x31\x00\x3e\x31\x69\x99\x1a\x25\x12\x93"
      "\xc6\x7c\xce\x9a\x78\xbf\xfe\x36\xc7\x78\xb8\xce\x91\x10\xfd\xac\x3e\xc5"
      "\x4b\xac\x57\xd7\x93\xfe\x1f\xeb\xbf\x66\x9d\x69\x6a\xcd\xec\xb5\xf6\x1f"
      "\xe6\xbd\x1b\xc0\x50\xc3\x73\x5b\xa0\xa7\xcd\x0d\xa7\xf4\x92\x61\xd7\x1d"
      "\x6e\xa8\xf7\x5c\x9d\x7d\x5d\x84\x34\x72\xd1\x5c\x75\xe9\xb3\xd2\x33\xb8"
      "\x7d\x75\x1b\xe4\x7b\xac\x72\x14\x9e\x7c\x46\xc9\x79\xf3\x5a\x61\x56\x63"
      "\x1e\x96\x75\xe1\xf5\x36\xc4\x9d\xb2\xa0\x50\x4b\xe5\x15\x29\x30\x8e\xdf"
      "\x0e\x78\x92\x0a\x13\x47\x9b\x24\xb2\x5a\x3d\x2e\xb4\x18\xa9\x28\x9b\xa4"
      "\x56\x92\x48\x3c\xd9\x1e\x9f\xc7\xc5\xb6\xa4\xed\x13\xad\xfe\xc4\x4e\x7a"
      "\xc6\xf5\x30\xbc\x11\xa6\x45\x6d\x73\x88\xa7\xb5\xda\x3f\xd5\x23\xdd\x73"
      "\x02\x47\x7e\xb6\x7d\x87\xad\x9a\x6e\x13\xc9\x36\xae\x83\xb1\x79\xb3\xa4"
      "\x8f\x63\x5a\x4e\x7d\xca\xad\xd3\xc0\xc6\x9a\xb6\xac\x97\xe7\xfa\xc7\x93"
      "\x0e\x66\x4e\xcd\xa2\xa4\x40\xbe\x58\x85\x48\xe0\xf0\xcb\xb4\x8a\x77\x56"
      "\x60\xec\x34\x0f\x2d\xf2\x9a\x7f\xa0\x8f\x99\xfb\xfb\x35\xea\x01\x67\xfe"
      "\x85\x0d\x15\x65\x11\x17\xd5\xd6\x16\xf5\xcc\xbe\x22\x0e\xf7\x69\x6c\x60"
      "\x0a\x0b\x0b\x1b\x46\x29\xd9\x78\xb9\x09\xa1\xb4\x03\xfe\x8e\xd6\x4c\x23"
      "\xfa\x91\x27\xb4\x5a\x1f\xab\x86\x92\x69\x04\x2e\xbd\x76\xf4\xff\xf2\xa4"
      "\xca\xd5\xd2\xcd\x7a\x75\x72\xfa\x43\x06\xa9\x54\x3e\x2e\x5e\x94\x18\xf7"
      "\x85\x6e\xbf\x2a\x70\x35\x44\x18\xdb\x24\x2c\xd6\x37\xb8\xa8\x2b\xbb\xd1"
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      "\x78\xef\x27\xbe\x07\xea\x1b\x04\x0f\x2b\xfa\xcb\xc5\x9c\x70\xa7\x29\xde"
      "\xb0\xb3\x9e\xe3\x6f\x73\x6d\x59\xb0\x0c\x49\xe1\x46\x98\x59\x86\x28\x49"
      "\x0c\xa9\xd6\xce\x6a\x51\x35\x89\x54\x87\xd3\xcd\x99\x25\xc5\xce\x75\x8d"
      "\xdc\xa0\xb5\x86\x59\xd8\x3a\xa9\x96\x9b\x80\xb0\xd1\x90\x83\xa0\x26\x96"
      "\x6b\x7d\x82\xf4\x7f\x20\xcd\xef\xf2\xed\xf7\x5b\x78\x70\x51\xd6\x18\x2b"
      "\xb2\x5b\xd6\x06\x25\x69\xb9\x57\x12\xfd\x26\xb3\xc1\x86\x07\xb4\xaf\xe2"
      "\xba\xbc\x3c\x61\x9f\x3d\xbe\x35\x5e\x9e\x22\x9b\x65\xa3\x40\xca\xd5\x5b"
      "\x29\x5b\x2b\x21\xdb\x11\x48\x46\x55\x30\x95\x40\x01\x00\x00\x00\x00\x00"
      "\x00\x24\x62\xe6\xaa\x97\xe1\x14\x84\xa9\xd6\xb3\xa9\xf5\x8e\x17\x12\x2a"
      "\x5a\x79\x8e\x92\xc3\x88\x5e\x32\x00\xa2\x53\xcc\xbe\x59\xa9\x4e\xa1\x46"
      "\xcf\x27\x02\xd7\xc5\x03\xdd\x11\x34\xa6\xad\x51\x53\x51\x67\x1b\xeb\xb1"
      "\xa2\x6a\x27\x01\xd9\xae\x10\x23\x46\xaa\xe5\xa2\xbc\xa3\x84\x01\x27\xfd"
      "\x98\x6c\x83\x1a\x2e\xe1\x20\x75\x57\x92\xbc\xd2\x01\x82\xdf\xf8\xf3\x7f"
      "\x4e\xd2\x52\xca\xd1\x32\x78\xd3\x29\x91\x4b\xe4\x75\x77\x3e\x07\x7b\x8d"
      "\xba\xca\x00\x3c\xa7\xb6\xd4\xc2\x08\x78\x8a\xcd\x4b\xb8\x7a\x60\xc4\x0e"
      "\x08\xee\x55\x18\x97\xf5\xcc\xaf\xde\xae\x66\xe6\x48\x69\x73\xbc\xf8\x0d"
      "\x24\x87\x62\xe5\x26\x70\x3f\xe4\x5c\x21\x2c\xe4\xc4\xc6\x56\x62\x7c\xd5"
      "\x32\x9b\x5d\xab\x25\x1c\x97\xe4\x44\x8f\xea\xab\xea\xf1\x63\x0e\x07\xba"
      "\x04\x3a\x2a\x8f\x40\x05\xd2\x3f\xed\x63\xda\x24\x7a\x8e\x29\x63\x9b\x97"
      "\xe7\xc2\xbb\x1e\xd8\xc0\x23\x33\x39\x76\x18\x8e\x91\x4d\xee\xc0\xac\x2a"
      "\xf4\xb7\xf3\x78\x12\x7b\xf3\x38\x16\xb8\x1c\x61\x77\xed\xa8\xf1\x43\x19"
      "\x5a\xf5\x50\x2d\x45\xe4\x17\x7a\x7d\x94\x58\x3c\x11\x25\xe2\xe4\x59\xbd"
      "\x51\x83\xf6\x97\x6f\xf5\x58\x89\x94\xf9\xbf\x09\xd5\x25\x57\xbe\xc2\xae"
      "\x55\xf9\xde\x3e\xea\xfd\x9c\x57\x2f\xc8\x0f\x4b\x3d\xe5\x19\xf7\xc2\x31"
      "\xbc\x53\xe9\xb3\xff\xd6\x73\xb4\x54\x13\xbc\x78\xf8\xb3\xb8\xf2\x68\xd6"
      "\x40\x3c\xc5\x6f\xb6\x9c\xd3\xc0\x39\xc7\x13\x9b\xa5\x33\x5f\x69\xb7\x78"
      "\x33\xc0\x87\xb9\x5f\xf3\xc0\xfb\xbd\x07\x8c\xb2\x0a\xf0\xad\xc7\xbf\xca"
      "\x2b\x01\x76\x52\x76\x25\xce\x31\xe0\xaf\x4b\xa3\xb5\xb6\x64\x28\x36\x3a"
      "\x18\x9f\x05\xe1\x3c\x57\xf8\x8f\xa9\x6d\xd2\x1b\x35\x16\xb9\x47\x44\xb8"
      "\x7c\xed\x87\xfe\xd0\xaa\x90\xe6\xe5\x33\x57\x20\x6f\x0f\x3c\x0b\xe3\xea"
      "\x96\x08\x27\xe3\x12\x81\xee\xcf\xad\x74\xdb\x9a\x7f\x4f\x14\xeb\x59\x7f"
      "\x7a\x70\xa4\xe4\xf4\x1e\x48\x4f\xca\x46\x73\x31\x3d\x2e\x3d\x3f\x70\x98"
      "\x7b\x11\x74\xd8\x4b\x89\x3d\xd4\xc1\x91\xa0\xef\xa4\x68\xed\x04\x5c\xbc"
      "\x49\x92\x90\xdc\x65\xfc\x4b\x85\x09\x8f\x83\x68\x5e\x52\x14\xa2\x4d\x30"
      "\x4d\xb6\x9c\xf7\xed\xb6\xe9\x9e\x5d\x93\xda\x62\x55\xc8\x42\x30\x31\x5d"
      "\x33\x1a\x84\xa5\xc3\x3c\x59\x58\x13\x4d\xbe\x3e\x01\x29\x0a\x4e\xbb\x13"
      "\x43\x78\xa2\xaf\x7c\x23\xfb\xde\x0a\xdc\x48\xf3\x21\x35\xdd\xc7\xab\x3c"
      "\xbc\x94\x67\xe8\x1e\x76\x48\x40\x85\xdb\x2a\xbb\x90\x2b\x87\x58\x1a\xd6"
      "\xde\x8f\x9d\x47\xe6\xd5\x99\x63\x6d\xed\x2d\x47\xf4\xc2\xa7\x13\xeb\x3e"
      "\x61\x7c\x89\xce\x50\x10\x66\xc0\x5c\x7b\x68\x04\xf5\x77\x34\x35\x15\x58"
      "\x30\x26\x0b\x9f\xda\xe8\x0a\x1c\x3f\x14\x8a\x0e\x22\x3c\xf7\xd0\x54\x3a"
      "\x7a\xff\xbf\x89\xf0\x1d\xad\xc3\x67\xf1\x86\x08\x11\x0a\xd7\x8f\xd6\x58"
      "\x5f\xa0\xdf\xaf\xaa\x4d\x05\x1f\x1a\x5d\x49\xf2\xda\xa6\x1d\x43\x49\x28"
      "\xb1\x95\x6c\x18\x41\x58\xad\xfa\xb0\xa1\xdd\x4b\xb3\xa1\x42\x38\xed\x7e"
      "\x4b\x22\xca\xb1\x94\x35\x4f\x24\xfb\xf8\x02\xd0\xe4\xfa\x8a\x97\x11\x15"
      "\xb9\xf3\x0d\xdc\xb2\x0c\x85\xcf\x25\x72\xd1\xd4\x72\x73\x06\x03\x6a\x43"
      "\xcc\x7a\xf5\xd2\x02\x61\xb7\xf5\xa0\x27\x48\xbd\xc5\xc1\x03\x90\xf9\x0e"
      "\x72\xe9\x6c\xa4\xa2\xbf\xbd\xc0\x01\x7b\xdc\x3c\x1f\x5b\xb9\xa5\xa5\x95"
      "\xba\x30\x7f\x52\x0a\x1a\xaa\xb1\xb5\xc6\xe6\xcd\x9d\x8b\x57\xb3\x6b\xac"
      "\x97\x19\xdf\x2c\x65\x02\xdd\x36\x1f\x5d\x5b\x56\xa1\xfe\xea\xb8\xae\x68"
      "\xa1\x71\x42\x90\x3b\xb0\x89\x88\x02\xaf\xbb\x8f\x23\xf1\xd9\x5e\xd4\x2f"
      "\x6a\x53\xf7\x87\x08\x8d\x5b\x67\x15\x5e\xec\x11\x97\x4d\x2d\x4b\xc4\x1e"
      "\xcd\x7d\x7b\xaa\xf8\x41\x0d\x98\x05\x71\xa4\x20\x72\x12\x7d\x4b\x49\x5f"
      "\x18\x3d\x09\x18\x05\xb6\xd6\x78\x22\x88\x23\x1a\x18\x21\xff\xe7\x3a\xb9"
      "\x8f\xdf\x77\x77\x34\xa5\x2f\xc7\xfd\x0e\xb2\xa0\x94\xc2\xf9\x46\xa5\x79"
      "\x19\x2c\xd2\xad\xbb\x64\xdc\xec\x0d\xed\x01\x99\xd1\xdc\x92\x18\xd3\x66"
      "\xc6\xac\xc4\x0e\xf9\x7f\x92\xc5\x42\x04\x81\x29\x9f\xdb\x01\xf0\x48\xc2"
      "\x6a\x72\xaf\x8e\x69\xee\xfb\xe8\x32\x1e\x17\xdd\x8e\x05\x45\xc3\x59\x1c"
      "\x1a\xbd\xdc\x06\xa9\x29\x90\x3a\x0c\x66\xed\x18\x77\x1d\x87\x79\x11\xf9"
      "\xd4\xc1\x3f\x85\xe9\xdd\x0c\x3a\x68\xaf\x8d\xb2\x71\x35\x90\x6c\xb3\xea"
      "\x8a\xd2\x10\x77\xfb\x9a\x8f\xbd\xfd\x33\x97\xe4\x3d\xfc\xd5\xe8\xc5\x7d"
      "\x28\x39\x75\xad\x29\x41\x75\xb7\x17\x1c\x1e\xd7\x61\x60\x5d\xcb\xa2\x3f"
      "\xe7\xf1\x9d\x1b\x57\x3f\xc0\xd7\xd6\x77\x07\x46\x34\x58\x2a\xa7\x59\x8a"
      "\x4f\x36\x7b\xa0\x64\xd6\x72\x7a\x2a\xe7\xbc\x98\xb0\x7c\xd6\xc4\x6e\x6a"
      "\x35\x5a\x7b\x44\x8e\xbb\xc6\xe4\x52\xf2\x22\x78\xdd\xd6\xc6\x45\xe3\xde"
      "\xd6\xf6\xb8\x6b\xb7\xb6\xc1\x79\xdf\xc6\xc7\x73\x48\x36\xa1\x98\xca\x24"
      "\xe8\x12\x04\x2c\xe4\x97\x77\xac\xf5\x48\x6b\x71\x1b\x36\xa3\x27\x2a\x93"
      "\x48\x10\xa3\xd6\x0d\xff\x12\x56\x94\x21\x3b\x52\xa2\xf2\xd7\x0f\x09\x6b"
      "\x01\x32\xfe\x75\xd1\xe4\x7a\x5b\x7e\x18\xa9\x53\xe5\x57\x34\x9c\xc6\xc2"
      "\x23\x93\x12\xa2\x2d\x36\xb5\x35\xce\x3a\x16\xb8\x21\xf5\x18\x37\x72\x76"
      "\x6a\xa0\x58\x23\x08\x1b\xa1\xdc\x9a\xb9\xb4\xb8\x2a\xbe\x2d\x38\xc4\xb0"
      "\x8f\x1c\xa7\x4b\x88\xee\xca\x8a\xab\x19\x1d\x5c\xdb\x60\xb8\x3d\x23\xe8"
      "\xc5\xe2\x25\xd8\x60\xdd\xd6\x5d\xb0\xa2\xfc\x1e\x5d\x78\x59\x17\xd3\x96"
      "\xd3\xc0\xdd\x77\x38\x45\x0a\x9f\xa0\xc5\x70\x21\xbe\x1d\x3f\x83\xbd\x62"
      "\x61\x1c\x16\x14\xd5\xc9\x94\x0c\x19\x43\x0b\xbd\xea\x07\xb2\x31\xbe\x81"
      "\x8a\x60\xad\xf1\xc3\x97\x7f\x0d\xa5\x66\x2b\xd3\x8b\xf6\x84\x1c\xac\x80"
      "\x35\xcb\x9d\x43\x96\xbe\x9f\x03\xe7\x93\xfb\x61\x44\xd0\x6d\xce\x79\x9f"
      "\x24\x50\x3a\x97\x92\x7a\x67\x0a\xe1\x03\x10\xc3\xf6\x53\x68\xfe\x09\xbf"
      "\xdc\xa9\xae\x4a\x2e\x7d\x70\x49\xd0\xfd\x11\x3c\xfd\x76\x8c\xbe\x58\x88"
      "\xd1\xf3\x39\x5a\xcd\x4c\x19\x00\x2e\xcd\xe7\xbc\x35\xee\xf3\xd2\xa8\xc8"
      "\xa6\x9a\xd4\x77\x1d\x00\x29\x7c\x78\xc5\x09\xd8\xd5\x3a\x5d\xb4\xda\x43"
      "\x57\x87\xe4\xe9\x8d\xe1\x68\x04\xf3\x30\x51\x9b\xdd\x26\xa2\x9a\x88\xae"
      "\x42\xd5\x45\xfe\xd6\x8a\xa4\xaa\x8a\x69\x0a\xff\xcd\xd2\x6c\x82\x1e\x3c"
      "\x11\xe7\xa1\x21\x8f\x59\xcb\x72\xe3\x65\x13\x2d\x81\x4a\xc4\x28\xe8\x70"
      "\x4d\x50\x4a\x26\x43\xcd\x32\x51\x27\x8f\x94\xa2\x6a\x80\x0b\x18\x7d\x20"
      "\xc5\xcd\xde\x7f\xff\x45\x35\x9f\x68\xcf\x28\x5f\xd7\x81\x36\xa6\x68\x26"
      "\x7a\xd1\x49\x94\x8d\x4c\x6c\xfb\x00\x47\xd6\xf4\x79\x36\x9a\xe5\x78\xbe"
      "\xf3\xf9\x60\xe7\x6a\x49\xf2\x79\xfe\xd5\x45\xea\x5c\x8b\xfd\xd5\xf0\x8e"
      "\xbc\x03\x5e\xd0\xce\x8f\x17\xcd\x07\x04\xe5\x46\x3f\x8a\x4e\x91\xca\xfa"
      "\xe8\x99\x4f\x6f\x0a\x18\xad\xa6\xa5\x26\x25\xed\xaa\xd1\x6a\xae\x16\xac"
      "\xb1\x51\x47\xcc\x64\x2f\x1a\x63\x72\x81\xfd\xed\x28\x95\x46\x3b\x84\xed"
      "\x0a\xa8\x69\x68\xea\xb4\x20\x25\xc3\xe5\xc7\x41\xb0\x15\x1e\x21\xd6\x16"
      "\xf7\x0a\xd9\x30\xb6\x27\xaf\x0a\x98\xee\x84\xf2\xfc\xe4\x84\x35\xd8\x52"
      "\xdc\x56\xf9\x45\x58\x3b\xfd\xa0\xb3\x01\xb5\x84\xe8\x9c\x0e\x0e\xed\x88"
      "\x58\xe8\x46\xce\x26\xd0\x3e\x0a\x49\xef\xe8\xf4\x4b\x10\xf5\xaa\x9b\x1c"
      "\x13\x1e\x80\xbe\xb6\xf3\x4f\x7f\x61\x86\x48\x1b\x05\xf0\xc9\x72\x55\xb4"
      "\xf3\x9a\x1b\x2e\xff\xec\x2f\xc2\x3a\x93\xab\x4c\xba\xa1\xd1\x59\xc6\x07"
      "\x71\xfb\x29\x6c\xbc\x01\x97\x87\x06\x7a\x6f\xf8\xd3\x40\x5a\x49\x17\xfa"
      "\x3d\xe5\x21\x63\xd9\xc4\x9a\x6c\x2f\x92\xb8\xc6\x43\xea\x23\x39\xb6\x7c"
      "\xde\xa9\xe9\x2c\x16\x12\x99\x8b\x03\xd3\xe9\xf1\xb4\x7c\xb4\x6f\xad\xf0"
      "\xb0\xf4\xcd\xbb\x15\x49\xf1\x1a\x7b\xd8\xc6\x93\x63\x70\x6f\x7b\x58\x43"
      "\xa5\x7a\x7c\x0e\xf3\x84\xe7\x2f\x3e\x44\x0a\x09\xb2\xd7\x27\x77\xab\x6b"
      "\xc9\xf3\x19\x72\x11\x09\x3b\x50\xa0\x27\x15\xc5\x97\x69\x7e\x6e\x2d\x2b"
      "\x0b\xa5\xc4\x8b\x3e\x74\x89\xf0\x84\x2f\x05\x79\x7a\x50\xe6\x97\xae\x56"
      "\xac\x6c\xd6\x82\x52\x03\x28\x35\xd6\xdb\xdf\x6a\xd6\xb5\x0a\x52\x1d\xf2"
      "\x9d\xe0\x36\x5c\x6a\x65\x29\x3f\x90\xd3\xa0\x96\x69\xc2\xcf\x4d\x6d\xa7"
      "\x18\x5a\x4b\xba\x4a\x65\x86\x47\x2d\x7a\x3c\x97\x7b\x9a\x01\x8d\x8c\x56"
      "\x66\xe1\xb6\x98\xcf\x49\x52\x74\x44\xef\x8e\x55\x51\xe6\x0f\x13\xf8\x5a"
      "\xfe\x6d\x5e\xf5\x9a\x05\x02\x42\x43\xaf\xd1\x72\x82\x3f\xe4\x96\x8e\xd2"
      "\xa5\x6c\x95\xfd\x4e\x71\xa2\xb2\xc6\xc3\x26\xf5\x70\x1e\xbf\xe8\x53\x8c"
      "\x69\x3b\x20\xfa\xb1\x7b\x1f\xfb\xc3\xbc\x4d\xda\x26\x6c\x6b\x3f\x87\x5c"
      "\xed\xbc\xbe\xd5\x9d\x2b\xf1\xf5\x40\x97\xc1\x43\x53\x88\xf6\x69\xeb\xff"
      "\xd7\x37\x50\x41\xf9\x3b\xa8\xb9\x77\x23\x45\x5f\x03\x40\xec\x0d\x9a\x27"
      "\x95\x30\xfa\x6b\xb3\x09\x20\x0f\xb2\x8d\x3f\xd8\x5a\x5f\x60\x18\x61\x41"
      "\x3a\xdf\xf9\x57\x6f\xf3\x05\xec\x4c\xf6\x40\xde\x16\x41\x79\x98\x66\x42"
      "\x50\x15\xf4\xa4\x24\x1f\x56\xf3\x70\x93\xb4\x04\x87\x08\x68\xa8\x6f\x46"
      "\x05\xfc\xee\x2f\xe4\x87\x0e\xc0\x56\x53\xb1\x5d\x81\x1c\xf0\x54\xf9\xb7"
      "\xd1\x77\xdd\xac\x58\x2d\x9f\x92\x53\x00\x78\x88\x97\x62\x15\xe2\x8f\xc1"
      "\x3b\x5f\x7c\x33\x35\x58\x2e\xa8\xf5\x94\x09\x01\x50\xca\x47\x58\xcf\xe5"
      "\xdc\xe3\xf6\x15\x3b\xff\xe1\x2a\x84\x5e\xdb\x3f\x01\x5a\x3b\x1f\x49\x97"
      "\x9e\x89\xee\x9e\x28\x0c\x51\xe3\x9b\xc3\x24\x09\x91\x93\x8f\xca\xaa\x3a"
      "\x96\x60\x20\x17\x30\x90\xa5\xa7\xf0\x84\x1d\x1d\x09\xf9\x9b\xd9\x6a\xd0"
      "\x1c\xa3\x23\x6e\xe5\x9c\xde\x0e\xd3\xa0\x05\x0f\xe9\x77\xee\xa0\x55\x19"
      "\x2b\xa6\x00\xa4\x93\x84\xe3\x44\xd6\x6d\xf1\x59\x5c\x82\xc3\xca\x0c\x48"
      "\xc6\xa8\x35\x17\xee\x92\xeb\x76\x07\xe8\xee\x4b\xb1\x31\x9d\xd9\x87\xa9"
      "\x9d\x74\xb1\x2c\x21\xe7\x3c\x61\x91\x3d\x1c\x99\xd3\x45\xe4\xff\x9c\x21"
      "\x66\x37\x67\x85\xab\x43\xc7\x9a\x10\x76\x2a\x19\xea\x9d\x9a\x4c\xcd\x4e"
      "\xa4\xe9\xa0\x8a\x38\x05\xc5\xe1\xd7\xb7\xc7\x64\xac\x9e\x47\x4a\x0f\x13"
      "\xdd\xd9\x31\xde\x1f\xe3\x5f\xfe\x19\x16\xba\x4e\xaa\x52\xf6\xdb\x1d\x17"
      "\x0b\xb1\xc1\x9b\x66\x41\x72\x74\xe3\xce\x5e\xa2\xab\x34\x79\x31\x6f\x79"
      "\x85\x95\x05\x8a\xa9\xa0\xf0\xdf\xc0\x27\x4c\x37\x9a\x25\x00\xb1\x75\x25"
      "\xaa\x06\xce\x0c\x77\x5d\x28\xb7\xc7\x68\x0a\x6d\x4d\xee\x42\xa2\x80\xca"
      "\x18\x93\x23\x01\x09\x96\x72\x9c\x17\xc3\xcc\x0a\x7d\x57\x32\x81\x8f\x2c"
      "\xf4\x29\x4d\x3f\x32\x65\x25\xe9\xd5\xe2\x17\xa2\x85\xba\xf5\x1d\x85\x5d"
      "\xa2\xc0\x00\x58\xbc\xbd\xa8\x9e\x6f\x51\xa6\xdc\xa2\x81\xb9\x7e\x69\x2e"
      "\xa3\x31\xc7\xdd\xcd\xf8\xa8\xdb\xe4\x78\x5b\x47\x2f\xee\xfc\xab\x05\xa1"
      "\xd3\xe6\x8a\x37\x87\x35\xdc\xc7\xf9\x23\x15\x1e\xb0\x28\xc3\xcd\x85\xd9"
      "\x4e\xf4\xc0\xa1\xd3\x28\xe8\x5f\xec\xc4\xa6\x81\xf7\xb1\x7b\xc0\xf9\x41"
      "\xa3\x00\x00\x00\x00\x00\x00\x00\x00\x00",
      4096));
  NONFAILING(*(uint16_t*)0x200000002f04 = 0x1000);
  syscall(__NR_write, /*fd=*/(intptr_t)-1, /*data=*/0x200000001f00ul,
          /*len=*/0x1006ul);
}
int main(void)
{
  syscall(__NR_mmap, /*addr=*/0x1ffffffff000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x200000000000ul, /*len=*/0x1000000ul,
          /*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/ 7ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x200001000000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  setup_cgroups();
  const char* reason;
  (void)reason;
  install_segv_handler();
  for (procid = 0; procid < 5; procid++) {
    if (fork() == 0) {
      use_temporary_dir();
      do_sandbox_none();
    }
  }
  sleep(1000000);
  return 0;
}