// https://syzkaller.appspot.com/bug?id=a1d71b9d2d156675adf24b074b009c3fbea9849d
// 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 <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/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/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 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);
}
#define DEV_IPV4 "172.20.20.%d"
#define DEV_IPV6 "fe80::%02x"
#define DEV_MAC 0x00aaaaaaaaaa
static void netdevsim_add(unsigned int addr, unsigned int port_count)
{
write_file("/sys/bus/netdevsim/del_device", "%u", addr);
if (write_file("/sys/bus/netdevsim/new_device", "%u %u", addr, port_count)) {
char buf[32];
snprintf(buf, sizeof(buf), "netdevsim%d", addr);
initialize_devlink_ports("netdevsim", buf, "netdevsim");
}
}
#define WG_GENL_NAME "wireguard"
enum wg_cmd {
WG_CMD_GET_DEVICE,
WG_CMD_SET_DEVICE,
};
enum wgdevice_attribute {
WGDEVICE_A_UNSPEC,
WGDEVICE_A_IFINDEX,
WGDEVICE_A_IFNAME,
WGDEVICE_A_PRIVATE_KEY,
WGDEVICE_A_PUBLIC_KEY,
WGDEVICE_A_FLAGS,
WGDEVICE_A_LISTEN_PORT,
WGDEVICE_A_FWMARK,
WGDEVICE_A_PEERS,
};
enum wgpeer_attribute {
WGPEER_A_UNSPEC,
WGPEER_A_PUBLIC_KEY,
WGPEER_A_PRESHARED_KEY,
WGPEER_A_FLAGS,
WGPEER_A_ENDPOINT,
WGPEER_A_PERSISTENT_KEEPALIVE_INTERVAL,
WGPEER_A_LAST_HANDSHAKE_TIME,
WGPEER_A_RX_BYTES,
WGPEER_A_TX_BYTES,
WGPEER_A_ALLOWEDIPS,
WGPEER_A_PROTOCOL_VERSION,
};
enum wgallowedip_attribute {
WGALLOWEDIP_A_UNSPEC,
WGALLOWEDIP_A_FAMILY,
WGALLOWEDIP_A_IPADDR,
WGALLOWEDIP_A_CIDR_MASK,
};
static void netlink_wireguard_setup(void)
{
const char ifname_a[] = "wg0";
const char ifname_b[] = "wg1";
const char ifname_c[] = "wg2";
const char private_a[] =
"\xa0\x5c\xa8\x4f\x6c\x9c\x8e\x38\x53\xe2\xfd\x7a\x70\xae\x0f\xb2\x0f\xa1"
"\x52\x60\x0c\xb0\x08\x45\x17\x4f\x08\x07\x6f\x8d\x78\x43";
const char private_b[] =
"\xb0\x80\x73\xe8\xd4\x4e\x91\xe3\xda\x92\x2c\x22\x43\x82\x44\xbb\x88\x5c"
"\x69\xe2\x69\xc8\xe9\xd8\x35\xb1\x14\x29\x3a\x4d\xdc\x6e";
const char private_c[] =
"\xa0\xcb\x87\x9a\x47\xf5\xbc\x64\x4c\x0e\x69\x3f\xa6\xd0\x31\xc7\x4a\x15"
"\x53\xb6\xe9\x01\xb9\xff\x2f\x51\x8c\x78\x04\x2f\xb5\x42";
const char public_a[] =
"\x97\x5c\x9d\x81\xc9\x83\xc8\x20\x9e\xe7\x81\x25\x4b\x89\x9f\x8e\xd9\x25"
"\xae\x9f\x09\x23\xc2\x3c\x62\xf5\x3c\x57\xcd\xbf\x69\x1c";
const char public_b[] =
"\xd1\x73\x28\x99\xf6\x11\xcd\x89\x94\x03\x4d\x7f\x41\x3d\xc9\x57\x63\x0e"
"\x54\x93\xc2\x85\xac\xa4\x00\x65\xcb\x63\x11\xbe\x69\x6b";
const char public_c[] =
"\xf4\x4d\xa3\x67\xa8\x8e\xe6\x56\x4f\x02\x02\x11\x45\x67\x27\x08\x2f\x5c"
"\xeb\xee\x8b\x1b\xf5\xeb\x73\x37\x34\x1b\x45\x9b\x39\x22";
const uint16_t listen_a = 20001;
const uint16_t listen_b = 20002;
const uint16_t listen_c = 20003;
const uint16_t af_inet = AF_INET;
const uint16_t af_inet6 = AF_INET6;
const struct sockaddr_in endpoint_b_v4 = {
.sin_family = AF_INET,
.sin_port = htons(listen_b),
.sin_addr = {htonl(INADDR_LOOPBACK)}};
const struct sockaddr_in endpoint_c_v4 = {
.sin_family = AF_INET,
.sin_port = htons(listen_c),
.sin_addr = {htonl(INADDR_LOOPBACK)}};
struct sockaddr_in6 endpoint_a_v6 = {.sin6_family = AF_INET6,
.sin6_port = htons(listen_a)};
endpoint_a_v6.sin6_addr = in6addr_loopback;
struct sockaddr_in6 endpoint_c_v6 = {.sin6_family = AF_INET6,
.sin6_port = htons(listen_c)};
endpoint_c_v6.sin6_addr = in6addr_loopback;
const struct in_addr first_half_v4 = {0};
const struct in_addr second_half_v4 = {(uint32_t)htonl(128 << 24)};
const struct in6_addr first_half_v6 = {{{0}}};
const struct in6_addr second_half_v6 = {{{0x80}}};
const uint8_t half_cidr = 1;
const uint16_t persistent_keepalives[] = {1, 3, 7, 9, 14, 19};
struct genlmsghdr genlhdr = {.cmd = WG_CMD_SET_DEVICE, .version = 1};
int sock;
int id, err;
sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC);
if (sock == -1) {
return;
}
id = netlink_query_family_id(&nlmsg, sock, WG_GENL_NAME, true);
if (id == -1)
goto error;
netlink_init(&nlmsg, id, 0, &genlhdr, sizeof(genlhdr));
netlink_attr(&nlmsg, WGDEVICE_A_IFNAME, ifname_a, strlen(ifname_a) + 1);
netlink_attr(&nlmsg, WGDEVICE_A_PRIVATE_KEY, private_a, 32);
netlink_attr(&nlmsg, WGDEVICE_A_LISTEN_PORT, &listen_a, 2);
netlink_nest(&nlmsg, NLA_F_NESTED | WGDEVICE_A_PEERS);
netlink_nest(&nlmsg, NLA_F_NESTED | 0);
netlink_attr(&nlmsg, WGPEER_A_PUBLIC_KEY, public_b, 32);
netlink_attr(&nlmsg, WGPEER_A_ENDPOINT, &endpoint_b_v4,
sizeof(endpoint_b_v4));
netlink_attr(&nlmsg, WGPEER_A_PERSISTENT_KEEPALIVE_INTERVAL,
&persistent_keepalives[0], 2);
netlink_nest(&nlmsg, NLA_F_NESTED | WGPEER_A_ALLOWEDIPS);
netlink_nest(&nlmsg, NLA_F_NESTED | 0);
netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet, 2);
netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &first_half_v4,
sizeof(first_half_v4));
netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
netlink_done(&nlmsg);
netlink_nest(&nlmsg, NLA_F_NESTED | 0);
netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet6, 2);
netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &first_half_v6,
sizeof(first_half_v6));
netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
netlink_done(&nlmsg);
netlink_done(&nlmsg);
netlink_done(&nlmsg);
netlink_nest(&nlmsg, NLA_F_NESTED | 0);
netlink_attr(&nlmsg, WGPEER_A_PUBLIC_KEY, public_c, 32);
netlink_attr(&nlmsg, WGPEER_A_ENDPOINT, &endpoint_c_v6,
sizeof(endpoint_c_v6));
netlink_attr(&nlmsg, WGPEER_A_PERSISTENT_KEEPALIVE_INTERVAL,
&persistent_keepalives[1], 2);
netlink_nest(&nlmsg, NLA_F_NESTED | WGPEER_A_ALLOWEDIPS);
netlink_nest(&nlmsg, NLA_F_NESTED | 0);
netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet, 2);
netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &second_half_v4,
sizeof(second_half_v4));
netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
netlink_done(&nlmsg);
netlink_nest(&nlmsg, NLA_F_NESTED | 0);
netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet6, 2);
netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &second_half_v6,
sizeof(second_half_v6));
netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
netlink_done(&nlmsg);
netlink_done(&nlmsg);
netlink_done(&nlmsg);
netlink_done(&nlmsg);
err = netlink_send(&nlmsg, sock);
if (err < 0) {
}
netlink_init(&nlmsg, id, 0, &genlhdr, sizeof(genlhdr));
netlink_attr(&nlmsg, WGDEVICE_A_IFNAME, ifname_b, strlen(ifname_b) + 1);
netlink_attr(&nlmsg, WGDEVICE_A_PRIVATE_KEY, private_b, 32);
netlink_attr(&nlmsg, WGDEVICE_A_LISTEN_PORT, &listen_b, 2);
netlink_nest(&nlmsg, NLA_F_NESTED | WGDEVICE_A_PEERS);
netlink_nest(&nlmsg, NLA_F_NESTED | 0);
netlink_attr(&nlmsg, WGPEER_A_PUBLIC_KEY, public_a, 32);
netlink_attr(&nlmsg, WGPEER_A_ENDPOINT, &endpoint_a_v6,
sizeof(endpoint_a_v6));
netlink_attr(&nlmsg, WGPEER_A_PERSISTENT_KEEPALIVE_INTERVAL,
&persistent_keepalives[2], 2);
netlink_nest(&nlmsg, NLA_F_NESTED | WGPEER_A_ALLOWEDIPS);
netlink_nest(&nlmsg, NLA_F_NESTED | 0);
netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet, 2);
netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &first_half_v4,
sizeof(first_half_v4));
netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
netlink_done(&nlmsg);
netlink_nest(&nlmsg, NLA_F_NESTED | 0);
netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet6, 2);
netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &first_half_v6,
sizeof(first_half_v6));
netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
netlink_done(&nlmsg);
netlink_done(&nlmsg);
netlink_done(&nlmsg);
netlink_nest(&nlmsg, NLA_F_NESTED | 0);
netlink_attr(&nlmsg, WGPEER_A_PUBLIC_KEY, public_c, 32);
netlink_attr(&nlmsg, WGPEER_A_ENDPOINT, &endpoint_c_v4,
sizeof(endpoint_c_v4));
netlink_attr(&nlmsg, WGPEER_A_PERSISTENT_KEEPALIVE_INTERVAL,
&persistent_keepalives[3], 2);
netlink_nest(&nlmsg, NLA_F_NESTED | WGPEER_A_ALLOWEDIPS);
netlink_nest(&nlmsg, NLA_F_NESTED | 0);
netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet, 2);
netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &second_half_v4,
sizeof(second_half_v4));
netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
netlink_done(&nlmsg);
netlink_nest(&nlmsg, NLA_F_NESTED | 0);
netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet6, 2);
netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &second_half_v6,
sizeof(second_half_v6));
netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
netlink_done(&nlmsg);
netlink_done(&nlmsg);
netlink_done(&nlmsg);
netlink_done(&nlmsg);
err = netlink_send(&nlmsg, sock);
if (err < 0) {
}
netlink_init(&nlmsg, id, 0, &genlhdr, sizeof(genlhdr));
netlink_attr(&nlmsg, WGDEVICE_A_IFNAME, ifname_c, strlen(ifname_c) + 1);
netlink_attr(&nlmsg, WGDEVICE_A_PRIVATE_KEY, private_c, 32);
netlink_attr(&nlmsg, WGDEVICE_A_LISTEN_PORT, &listen_c, 2);
netlink_nest(&nlmsg, NLA_F_NESTED | WGDEVICE_A_PEERS);
netlink_nest(&nlmsg, NLA_F_NESTED | 0);
netlink_attr(&nlmsg, WGPEER_A_PUBLIC_KEY, public_a, 32);
netlink_attr(&nlmsg, WGPEER_A_ENDPOINT, &endpoint_a_v6,
sizeof(endpoint_a_v6));
netlink_attr(&nlmsg, WGPEER_A_PERSISTENT_KEEPALIVE_INTERVAL,
&persistent_keepalives[4], 2);
netlink_nest(&nlmsg, NLA_F_NESTED | WGPEER_A_ALLOWEDIPS);
netlink_nest(&nlmsg, NLA_F_NESTED | 0);
netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet, 2);
netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &first_half_v4,
sizeof(first_half_v4));
netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
netlink_done(&nlmsg);
netlink_nest(&nlmsg, NLA_F_NESTED | 0);
netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet6, 2);
netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &first_half_v6,
sizeof(first_half_v6));
netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
netlink_done(&nlmsg);
netlink_done(&nlmsg);
netlink_done(&nlmsg);
netlink_nest(&nlmsg, NLA_F_NESTED | 0);
netlink_attr(&nlmsg, WGPEER_A_PUBLIC_KEY, public_b, 32);
netlink_attr(&nlmsg, WGPEER_A_ENDPOINT, &endpoint_b_v4,
sizeof(endpoint_b_v4));
netlink_attr(&nlmsg, WGPEER_A_PERSISTENT_KEEPALIVE_INTERVAL,
&persistent_keepalives[5], 2);
netlink_nest(&nlmsg, NLA_F_NESTED | WGPEER_A_ALLOWEDIPS);
netlink_nest(&nlmsg, NLA_F_NESTED | 0);
netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet, 2);
netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &second_half_v4,
sizeof(second_half_v4));
netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
netlink_done(&nlmsg);
netlink_nest(&nlmsg, NLA_F_NESTED | 0);
netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet6, 2);
netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &second_half_v6,
sizeof(second_half_v6));
netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
netlink_done(&nlmsg);
netlink_done(&nlmsg);
netlink_done(&nlmsg);
netlink_done(&nlmsg);
err = netlink_send(&nlmsg, sock);
if (err < 0) {
}
error:
close(sock);
}
static void initialize_netdevices(void)
{
char netdevsim[16];
sprintf(netdevsim, "netdevsim%d", (int)procid);
struct {
const char* type;
const char* dev;
} devtypes[] = {
{"ip6gretap", "ip6gretap0"}, {"bridge", "bridge0"}, {"vcan", "vcan0"},
{"bond", "bond0"}, {"team", "team0"}, {"dummy", "dummy0"},
{"nlmon", "nlmon0"}, {"caif", "caif0"}, {"batadv", "batadv0"},
{"vxcan", "vxcan1"}, {"veth", 0}, {"wireguard", "wg0"},
{"wireguard", "wg1"}, {"wireguard", "wg2"},
};
const char* devmasters[] = {"bridge", "bond", "team", "batadv"};
struct {
const char* name;
int macsize;
bool noipv6;
} devices[] = {
{"lo", ETH_ALEN},
{"sit0", 0},
{"bridge0", ETH_ALEN},
{"vcan0", 0, true},
{"tunl0", 0},
{"gre0", 0},
{"gretap0", ETH_ALEN},
{"ip_vti0", 0},
{"ip6_vti0", 0},
{"ip6tnl0", 0},
{"ip6gre0", 0},
{"ip6gretap0", ETH_ALEN},
{"erspan0", ETH_ALEN},
{"bond0", ETH_ALEN},
{"veth0", ETH_ALEN},
{"veth1", ETH_ALEN},
{"team0", ETH_ALEN},
{"veth0_to_bridge", ETH_ALEN},
{"veth1_to_bridge", ETH_ALEN},
{"veth0_to_bond", ETH_ALEN},
{"veth1_to_bond", ETH_ALEN},
{"veth0_to_team", ETH_ALEN},
{"veth1_to_team", ETH_ALEN},
{"veth0_to_hsr", ETH_ALEN},
{"veth1_to_hsr", ETH_ALEN},
{"hsr0", 0},
{"dummy0", ETH_ALEN},
{"nlmon0", 0},
{"vxcan0", 0, true},
{"vxcan1", 0, true},
{"caif0", ETH_ALEN},
{"batadv0", ETH_ALEN},
{netdevsim, ETH_ALEN},
{"xfrm0", ETH_ALEN},
{"veth0_virt_wifi", ETH_ALEN},
{"veth1_virt_wifi", ETH_ALEN},
{"virt_wifi0", ETH_ALEN},
{"veth0_vlan", ETH_ALEN},
{"veth1_vlan", ETH_ALEN},
{"vlan0", ETH_ALEN},
{"vlan1", ETH_ALEN},
{"macvlan0", ETH_ALEN},
{"macvlan1", ETH_ALEN},
{"ipvlan0", ETH_ALEN},
{"ipvlan1", ETH_ALEN},
{"veth0_macvtap", ETH_ALEN},
{"veth1_macvtap", ETH_ALEN},
{"macvtap0", ETH_ALEN},
{"macsec0", ETH_ALEN},
{"veth0_to_batadv", ETH_ALEN},
{"veth1_to_batadv", ETH_ALEN},
{"batadv_slave_0", ETH_ALEN},
{"batadv_slave_1", ETH_ALEN},
{"geneve0", ETH_ALEN},
{"geneve1", ETH_ALEN},
{"wg0", 0},
{"wg1", 0},
{"wg2", 0},
};
int sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
if (sock == -1)
exit(1);
unsigned i;
for (i = 0; i < sizeof(devtypes) / sizeof(devtypes[0]); i++)
netlink_add_device(&nlmsg, sock, devtypes[i].type, devtypes[i].dev);
for (i = 0; i < sizeof(devmasters) / (sizeof(devmasters[0])); i++) {
char master[32], slave0[32], veth0[32], slave1[32], veth1[32];
sprintf(slave0, "%s_slave_0", devmasters[i]);
sprintf(veth0, "veth0_to_%s", devmasters[i]);
netlink_add_veth(&nlmsg, sock, slave0, veth0);
sprintf(slave1, "%s_slave_1", devmasters[i]);
sprintf(veth1, "veth1_to_%s", devmasters[i]);
netlink_add_veth(&nlmsg, sock, slave1, veth1);
sprintf(master, "%s0", devmasters[i]);
netlink_device_change(&nlmsg, sock, slave0, false, master, 0, 0, NULL);
netlink_device_change(&nlmsg, sock, slave1, false, master, 0, 0, NULL);
}
netlink_add_xfrm(&nlmsg, sock, "xfrm0");
netlink_device_change(&nlmsg, sock, "bridge_slave_0", true, 0, 0, 0, NULL);
netlink_device_change(&nlmsg, sock, "bridge_slave_1", true, 0, 0, 0, NULL);
netlink_add_veth(&nlmsg, sock, "hsr_slave_0", "veth0_to_hsr");
netlink_add_veth(&nlmsg, sock, "hsr_slave_1", "veth1_to_hsr");
netlink_add_hsr(&nlmsg, sock, "hsr0", "hsr_slave_0", "hsr_slave_1");
netlink_device_change(&nlmsg, sock, "hsr_slave_0", true, 0, 0, 0, NULL);
netlink_device_change(&nlmsg, sock, "hsr_slave_1", true, 0, 0, 0, NULL);
netlink_add_veth(&nlmsg, sock, "veth0_virt_wifi", "veth1_virt_wifi");
netlink_add_linked(&nlmsg, sock, "virt_wifi", "virt_wifi0",
"veth1_virt_wifi");
netlink_add_veth(&nlmsg, sock, "veth0_vlan", "veth1_vlan");
netlink_add_vlan(&nlmsg, sock, "vlan0", "veth0_vlan", 0, htons(ETH_P_8021Q));
netlink_add_vlan(&nlmsg, sock, "vlan1", "veth0_vlan", 1, htons(ETH_P_8021AD));
netlink_add_macvlan(&nlmsg, sock, "macvlan0", "veth1_vlan");
netlink_add_macvlan(&nlmsg, sock, "macvlan1", "veth1_vlan");
netlink_add_ipvlan(&nlmsg, sock, "ipvlan0", "veth0_vlan", IPVLAN_MODE_L2, 0);
netlink_add_ipvlan(&nlmsg, sock, "ipvlan1", "veth0_vlan", IPVLAN_MODE_L3S,
IPVLAN_F_VEPA);
netlink_add_veth(&nlmsg, sock, "veth0_macvtap", "veth1_macvtap");
netlink_add_linked(&nlmsg, sock, "macvtap", "macvtap0", "veth0_macvtap");
netlink_add_linked(&nlmsg, sock, "macsec", "macsec0", "veth1_macvtap");
char addr[32];
sprintf(addr, DEV_IPV4, 14 + 10);
struct in_addr geneve_addr4;
if (inet_pton(AF_INET, addr, &geneve_addr4) <= 0)
exit(1);
struct in6_addr geneve_addr6;
if (inet_pton(AF_INET6, "fc00::01", &geneve_addr6) <= 0)
exit(1);
netlink_add_geneve(&nlmsg, sock, "geneve0", 0, &geneve_addr4, 0);
netlink_add_geneve(&nlmsg, sock, "geneve1", 1, 0, &geneve_addr6);
netdevsim_add((int)procid, 4);
netlink_wireguard_setup();
for (i = 0; i < sizeof(devices) / (sizeof(devices[0])); i++) {
char addr[32];
sprintf(addr, DEV_IPV4, i + 10);
netlink_add_addr4(&nlmsg, sock, devices[i].name, addr);
if (!devices[i].noipv6) {
sprintf(addr, DEV_IPV6, i + 10);
netlink_add_addr6(&nlmsg, sock, devices[i].name, addr);
}
uint64_t macaddr = DEV_MAC + ((i + 10ull) << 40);
netlink_device_change(&nlmsg, sock, devices[i].name, true, 0, &macaddr,
devices[i].macsize, NULL);
}
close(sock);
}
static void initialize_netdevices_init(void)
{
int sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
if (sock == -1)
exit(1);
struct {
const char* type;
int macsize;
bool noipv6;
bool noup;
} devtypes[] = {
{"nr", 7, true},
{"rose", 5, true, true},
};
unsigned i;
for (i = 0; i < sizeof(devtypes) / sizeof(devtypes[0]); i++) {
char dev[32], addr[32];
sprintf(dev, "%s%d", devtypes[i].type, (int)procid);
sprintf(addr, "172.30.%d.%d", i, (int)procid + 1);
netlink_add_addr4(&nlmsg, sock, dev, addr);
if (!devtypes[i].noipv6) {
sprintf(addr, "fe88::%02x:%02x", i, (int)procid + 1);
netlink_add_addr6(&nlmsg, sock, dev, addr);
}
int macsize = devtypes[i].macsize;
uint64_t macaddr = 0xbbbbbb +
((unsigned long long)i << (8 * (macsize - 2))) +
(procid << (8 * (macsize - 1)));
netlink_device_change(&nlmsg, sock, dev, !devtypes[i].noup, 0, &macaddr,
macsize, NULL);
}
close(sock);
}
static int read_tun(char* data, int size)
{
if (tunfd < 0)
return -1;
int rv = read(tunfd, data, size);
if (rv < 0) {
if (errno == EAGAIN || errno == EBADFD)
return -1;
exit(1);
}
return rv;
}
static void flush_tun()
{
char data[1000];
while (read_tun(&data[0], sizeof(data)) != -1) {
}
}
#define MAX_FDS 30
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)) {
}
if (symlink("/dev/binderfs", "./binderfs")) {
}
}
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);
}
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_test()
{
prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0);
setpgrp();
write_file("/proc/self/oom_score_adj", "1000");
flush_tun();
}
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)
{
int iter = 0;
for (;; iter++) {
int pid = fork();
if (pid < 0)
exit(1);
if (pid == 0) {
setup_test();
execute_one();
close_fds();
exit(0);
}
int status = 0;
uint64_t start = current_time_ms();
for (;;) {
if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid)
break;
sleep_ms(1);
if (current_time_ms() - start < 5000)
continue;
kill_and_wait(pid, &status);
break;
}
}
}
uint64_t r[1] = {0xffffffffffffffff};
void execute_one(void)
{
intptr_t res = 0;
*(uint32_t*)0x20000200 = 0xc;
*(uint32_t*)0x20000204 = 0xe;
*(uint64_t*)0x20000208 = 0x20000500;
memcpy(
(void*)0x20000500,
"\xb7\x02\x00\x00\x14\x00\x00\x00\xbf\xa3\x00\x00\x00\x00\x00\x00\x07\x03"
"\x00\x00\x00\xfe\xff\xff\x7a\x0a\xf0\xff\x01\x00\x00\x00\x79\xa4\xf0\xff"
"\x00\x00\x00\x00\xb7\x06\x00\x00\xff\xff\xff\xff\x2d\x64\x05\x00\x00\x00"
"\x00\x00\x65\x04\x04\x00\x01\x00\x00\x00\x04\x04\x00\x00\x01\x00\x7d\x60"
"\xb7\x03\x00\x00\x00\x00\x00\x00\x6a\x0a\x00\xfe\x00\x00\x00\x00\x85\x00"
"\x00\x00\x0d\x00\x00\x00\xb7\x00\x00\x00\x00\x00\x00\x00\x95\x00\x00\x00"
"\x00\x00\x00\x00\x5e\xce\xfa\xb8\xf2\xe8\x5c\x6c\x1c\xa7\x11\xfc\xd0\x20"
"\xf4\xc0\xc8\xc5\x61\x47\xd6\x65\x27\xda\x30\x7b\xf7\x31\xb9\x79\x98\x83"
"\x07\xfe\xf9\x78\x61\x75\x03\x79\x58\x5e\x5a\x07\x6d\x83\x92\x40\xd2\x9c"
"\x03\x40\x55\xb6\x7d\xaf\xe6\xc8\xdc\x3d\x5d\x78\xc0\x7f\xa1\xf7\xe6\x55"
"\xce\x34\xe4\xd5\xb3\x18\x5f\xec\x0e\x07\x00\x4e\x60\xc0\x8d\xc8\xb8\xdb"
"\xf1\x1e\x6e\x94\xd7\x59\x38\x32\x1a\x3a\xa5\x02\xcd\x24\x24\xa6\x6e\x6d"
"\x2e\xf8\x31\xab\x7e\xa0\xc3\x4f\x17\xe3\x94\x6e\xf3\xbb\x62\x20\x03\xb5"
"\x38\xdf\xd8\xe0\x12\xe7\x95\x78\xe5\x1b\xc5\x30\x99\xe9\x0f\x45\x80\xd7"
"\x60\x55\x1b\x5b\x34\x1a\x29\xf3\x1e\x31\x06\xd1\xdd\xd6\x15\x2f\x7c\xbd"
"\xb9\xcd\x38\xbd\xb2\x20\x9c\x67\xde\xca\x8e\xeb\x9c\x15\xab\x3a\x14\x81"
"\x7a\xc6\x1e\x4d\xd1\x11\x83\xa1\x34\x77\xbf\x7e\x86\x0e\x36\x65\xf1\x32"
"\x8d\x67\x04\x90\x2c\xbe\x7b\xc0\x4b\x82\xd2\x78\x9c\xb1\x32\xb8\x66\x7c"
"\x21\x47\x66\x1d\xf2\x8d\x99\x61\xb6\x3e\x1a\x9c\xf6\xc2\xa6\x60\xa1\xfe"
"\x3c\x18\x4b\x75\x1c\x51\x16\x0f\xb2\x0b\x1c\x58\x1e\x7b\xe6\xba\x0d\xc0"
"\x01\xc4\x11\x05\x55\x85\x09\x15\x14\x8b\xa5\x32\xe6\xea\x09\xc3\x46\xdf"
"\xeb\xd3\x86\x08\xb3\x28\x00\x80\x00\x5d\x9a\x95\x00\x00\x00\x00\x00\x00"
"\x00\x33\x4d\x83\x23\x9d\xd2\x70\x80\x85\x1d\xca\xc3\xc1\x22\x33\xf9\xa1"
"\xfb\x9c\x2a\xec\x61\xce\x63\xa3\x8d\x2f\xd5\x01\x17\xb8\x9a\x9a\xb3\x59"
"\xb4\xee\xa0\xc6\xe9\x57\x67\xd4\x2b\x4e\x54\x86\xb6\xaf\x27\xdb\xfd\x2e"
"\x6d\x7f\x71\x5a\x7f\x3d\xea\xdd\x71\x30\x85\x6f\x75\x64\x36\x30\x37\x67"
"\xd2\xe2\x4f\x29\xe5\xda\xd9\x79\x6e\xdb\x69\x7a\xee\xa0\x18\x2b\xab\xd1"
"\x8c\xac\x1b\xd4\xf4\x39\x0a\xf9\xa9\xce\xaf\xd0\x00\x2c\xab\x15\x4a\xd0"
"\x29\xa1\x09\x00\x00\x00\x27\x80\x87\x00\x14\xf5\x1c\x3c\x97\x5d\x5a\xec"
"\x84\x22\x2f\xff\x0d\x72\x16\xfd\xb0\xd3\xa0\x11\x2f\x0b\x39\x50\x1a\xaf"
"\xe2\x34\x87\x00\x72\x85\x8d\xc0\x6e\x7c\x33\x76\x42\xd3\xe5\xa8\x15\x23"
"\x2f\x5e\x16\xc1\xb3\x0c\x3a\x6a\x71\xbc\x85\x01\x8e\x5f\xf2\xc9\x10\x18"
"\xaf\xc9\xff\xc2\xcc\x78\x8b\xee\x1b\x47\x68\x3d\xb0\x1a\x46\x93\x98\x68"
"\x52\x11\xdf\xbb\xae\x3e\x2e\xd0\xa5\x0e\x73\x13\xbf\xf5\xd4\xc3\x91\xdd"
"\xec\xe0\x0f\xc7\x72\xdd\x6b\x4d\x4d\xe2\xa4\x19\x90\xf0\x5c\xa3\xbd\xfc"
"\x92\xc8\x8c\x5b\x8d\xcd\x36\xe7\x48\x7a\xfa\x44\x7c\x2e\xdf\xae\x4f\x39"
"\x0a\x83\x37\x84\x1c\xef\x38\x6e\x22\xcc\x22\xee\x17\x47\x6d\x73\x89\x52"
"\x22\x96\x82\xe2\x4b\x92\x53\x3a\xc2\xa9\xf5\xa6\x99\x59\x3f\x08\x44\x19"
"\xca\xe0\xb4\x53\x2b\xcc\x97\xd3\xae\x48\x6a\xca\x54\x18\x3f\xb0\x1c\x73"
"\xf9\x79\xca\x98\x57\x39\x95\x37\xf5\xdc\x2a\xcb\x72\xe7\xea\xd0\x50\x9d"
"\x38\x05\x78\x67\x3f\x8b\x6e\x74\xce\x23\x87\x7a\x6b\x24\xdb\x00\x00\x00"
"\x00\x00\x00\x00\x03\x62\x9f\xbe\xf2\x46\x1c\x96\xa0\x88\xa2\x2e\x8b\x15"
"\xc3\xe2\x33\xdb\x7a\xb2\x2e\x30\xd4\x6a\x9d\x24\xd3\x7c\xef\x09\x9e\xce"
"\x72\x9a\xa2\x18\xf9\xf4\x4a\x32\x10\x22\x3f\xda\xe7\xed\x04\x93\x5c\x3c"
"\x90\xd3\xad\xd8\xee\xbc\x86\x19\xd7\xb9\x0d\xfa\xe1\x58\xb9\x4f\x50\xad"
"\xab\x98\x8d\xd8\xe1\x2b\x1b\x56\x07\x3d\x0d\x10\xf7\x06\x7c\x88\x14\x34"
"\xaf\x5c\xc9\x39\x8f\xff\x00\x40\x4d\x5d\x99\xf8\x2e\x20\xee\x6a\x8c\x88"
"\xe1\x8c\x29\x77\xaa\xb3\x7d\x9a\xc4\xcf\xc1\xc7\xb4\x00\x00\x00\x00\x00"
"\x00\x07\xff\x57\xc3\x94\x95\xc8\x26\xb9\x56\xba\x85\x9a\xc8\xe3\xc1\x77"
"\xb9\x1b\xd7\xd5\xe4\x1f\xf8\x68\xf7\xca\x16\x64\xfe\x2f\x3c\xed\x84\x68"
"\x91\x18\x06\x04\xb6\xdd\x24\x99\xd1\x6d\x7d\x91\x58\xff\xff\xff\xff\x00"
"\x00\x00\x00\xef\x06\x9d\xc4\x27\x49\xda\x00\x00\x00\x97\xee\x9d\x00\x00"
"\x00\x2d\x8c\x38\xa9\x67\xc1\xbb\xe0\x93\x15\xc2\x98\x77\xa3\x31\xbc\xc8"
"\x7d\xc3\xad\xdb\x08\x14\x1b\xde\xe5\xd2\x78\x74\xb2\xf6\x63\xdd\xee\xf0"
"\x00\x5b\x3d\x96\xc7\xaa\xbf\x77\xbf\xc9\x57\x69\xa9\x29\x4d\xf5\x17\xd9"
"\x0b\xdc\x01\xe7\x38\x35\xef\xd9\x8a\x6c\xd5\xe1\xa9\x08\x00\xc6\x6e\xe2"
"\xb1\xad\x76\xdf\xf9\xf9\x00\x00\x71\x41\x4c\x99\xd4\x89\x4e\xe7\xf8\x24"
"\x9d\xc1\xe3\x42\x8d\x21\x29\x36\x9e\xe1\xb8\x5a\xf6\xeb\x2e\xea\x0d\x0d"
"\xf4\x14\xb3\x15\x92\x47\x9e\xcf\x23\x92\x54\x8f\x11\xe1\x03\x6a\x8d\xeb"
"\xd6\x4c\xbe\x35\x94\x54\xa3\xf2\x23\x9c\xfe\x35\xf8\x1b\x7a\x37\xf0\x16"
"\x7e\x6d\x5c\x11\x09\x00\x00\x00\x00\x00\x00\x00\x00\x42\xb8\xff\x8c\x21"
"\xad\x70\x2c\xca\xca\xd5\xb3\x9e\xef\x21\x3d\x1c\xa2\x96\xd2\xa2\x77\x98"
"\xc8\xce\x2a\x30\x5c\x0c\x7d\x35\xcf\x4b\x22\x54\x9a\x4b\xd9\x20\x52\x18"
"\x8b\xd1\xf2\x85\xf6\x53\xb6\x21\x49\x1d\xc6\xaa\xee\x02\x00\xe2\xff\x08"
"\x64\x4f\xb9\x4c\x06\x00\x6e\xff\x1b\xe2\xf6\x33\xc1\xd9\x87\x59\x1e\xc3"
"\xdb\x58\xa7\xbb\x30\x42\xec\x3f\x77\x1f\x7a\x13\x38\xa5\xc3\xdd\x35\xe9"
"\x26\x04\x9f\xe8\x6e\x09\xc5\x8e\x27\x3c\xd9\x05\xde\xb2\x8c\x13\xc1\xed"
"\x1c\x0d\x9c\xae\x84\x6b\xcb\xfa\x8c\xce\x7b\x89\x3e\x57\x8a\xf7\xdc\x7d"
"\x5e\x87\xd4\x4f\xf8\x28\xde\x45\x3f\x34\xc2\xb1\x86\x60\xb0\x80\xef\xc7"
"\x07\xe6\x76\xe1\xfb\x4d\x58\x25\xc0\xca\x17\x7a\x4c\x7f\xbb\x4e\x62\xb4"
"\x45\xc0\x0f\x57\x6b\x2b\x5c\xc7\xf8\x19\xab\xd0\xd4\x7a\x31\xd8\x97\x03"
"\x95\xf8\x85\xcc\x48\x06\xf4\x03\x00\x96\x6f\xcf\x1e\x54\xf5\xa2\xd3\x87"
"\x08\x19\x48\xd6\xf4\x96\xe5\xde\xe7\x34\xfe\x7d\xa3\x77\x08\x45\xcf\x44"
"\x2d\x48\x8a\xfd\xc0\xe1\x70\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x52\x05\x00"
"\x00\x00\xdc\x1c\x56\xd5\x9f\x35\xd3\x67\x63\x29\x52\xa9\x34\x66\xae\x59"
"\x5c\x6a\x8c\xda\x69\x0d\x19\x2a\x07\x08\x86\xdf\x42\xb2\x70\x98\x77\x3b"
"\x45\x19\x8b\x4a\x34\xac\x97\x7e\xbd\x44\x50\xe1\x21\xd0\x13\x42\x70\x3f"
"\x5b\xf0\x30\xe9\x35\x87\x8a\x6d\x16\x9c\x80\xaa\x42\x52\xd4\xea\x6b\x8f"
"\x62\x16\xff\x20\x2b\x5b\x5a\x18\x2c\xb5\xe8\x38\xb3\x07\x63\x2d\x03\xa7"
"\xca\x6f\x6d\x03\x39\xf9\x95\x3c\x30\x93\xc3\x69\x0d\x10\xec\xb6\x5d\xc5"
"\xb4\x74\x81\xed\xbf\x1f\x00\x00\x00\x00\x00\x00\x00\x4d\x16\xd2\x9c\x28"
"\xeb\x51\x67\xe9\x93\x6e\xd3\x27\xfb\x23\x7a\x56\x22\x4e\x49\xd9\xea\x95"
"\x5a\x5f\x0d\xec\x1b\x3c\xcd\x35\x36\x46\x00\x00\x00\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x26\xde\xd4\xdd\x6f\xe1\x51\x8c\xc7\x80\x20\x43\xec\xfe"
"\x69\xf7\x43\xf1\x21\x3b\xf8\x17\x9e\xcd\x9e\x5a\x22\x5d\x67\x52\x1d\xc7"
"\x28\xea\xc7\xd8\x0a\x56\x46\xac\x2c\xbd\xe2\x1d\x3e\xbf\xbf\x69\xff\x86"
"\x1f\x43\x94\x83\x6d\xdf\x12\x8d\x6d\x19\x07\x9e\x64\x33\x6e\x7c\x67\x65"
"\x05\xc7\x8a\xd6\x75\x48\xf4\xb1\x92\xbe\x18\x27\xfc\xd9\x5c\xf1\x07\x75"
"\x3c\xb0\xa6\xa9\x79\xd3\xdb\x0c\x40\x70\x81\xc6\x28\x1e\x2d\x84\x29\xa8"
"\x63\x90\x3c\xa7\x5f\x4c\x7d\xf3\xea\x8f\xc2\x01\x8d\x07\xaf\x14\x91\xef"
"\x06\x0c\xd4\x40\x3a\x34\xa8\x68\x51\x09\x9f\x32\x46\x8f\x65\xbd\x06\xb4"
"\x08\x2d\x43\xe1\x21\x86\x1b\x5c\xc0\x3f\x1a\x15\x61\xf0\x58\x9e\x0d\x12"
"\x96\x9b\xc9\x82\xff\x5d\x8e\x9b\x98\x6c\x0c\x6c\x74\x7d\x9a\x1c\xc5\x00"
"\xbb\x89\x2c\x3a\x16\xff\x10\xfe\xea\x20\xbd\xac\x00\x00\x00\x00\x00\x00"
"\x00\x00\xca\x06\xf2\x56\x00\x00\x00\x00\x00\x00\x08\x83\xb2\x1f\x32\x89"
"\xf8\x6a\x68\x26\xc6\x9f\xa3\x5b\xa5\xcb\xc3\xf2\xdb\x15\x16\xff\xc5\xc6"
"\xe3\xfa\x61\x8b\x24\xa6\xce\x16\xd6\xc7\x01\x0b\xb3\x7b\x61\xfa\x0a\x2d"
"\x89\x74\xe6\x91\x15\xd3\x33\x94\xe8\x6e\x4b\x83\x82\x97\xba\x20\xf9\x69"
"\x36\xb7\xe4\x76\x6e\x92\xde\xa6\xc5\xd1\xd3\x3d\x84\xd9\x6b\x50\xfb\x00"
"\x00\x00\xae\x07\xc6\x5b\x71\x08\x8d\xd7\xd5\xd1\xe1\xba\xb9\x00\x00\x00"
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\xb5\xac\xe2\x93\xbe\xc8\x59\xc1\x3e"
"\x32\x29\x43\x2a\xd7\x1d\x64\x62\x18\xb5\x22\x9d\xd8\x81\x37\xfc\x7c\x59"
"\xaa\x24\x2a\xf3\xbb\x4e\xfb\x82\x05\x5a\x3b\x61\x22\x7a\xd4\x0f\x52\xc9"
"\xf2\x50\x05\x79\x31\xd8\x28\xec\x78\xe1\x16\xae\x46\xc4\x89\x7e\x27\x95"
"\xb6\xff\x92\xe9\xa1\xf6\x3a\x6e\xd8\xfb\x4f\x8f\x3a\x6e\xc4\xe7\x6f\x86"
"\x21\xe2\x4b\x0b\x85\x5c\x02\xf2\xb7\xad\xd5\x8f\xfb\x25\xf3\x39\x29\x77"
"\x29\xa7\xa5\x18\x10\x13\x4d\x3d\xfb\xf7\x1f\x65\x16\x73\x7b\xe5\x5c\x06"
"\xd9\xcd\xcf\xb1\xe2\xbb\x10\xb5\x00\x00\xeb\x4a\xcf\xf9\x07\x56\xdb\xa1"
"\xec\xf9\xf5\x8a\xfd\x3c\x19\xb5\xc4\x55\x8b\xa9\xaf\x6b\x73\x33\xc8\x94"
"\xa1\xfb\x29\xad\xe9\xad\x75\xc9\xc0\x22\xe8\xd0\x3f\xe2\x8b\xc3\x58\x68"
"\x44\x92\xaa\x77\x1d\xbf\xe8\x07\x45\xfe\x89\xad\x34\x9f\xfa\xad\x76\xff"
"\x9d\xd6\x43\x79\x6c\xaf\xfd\xf6\x7a\xf5\xdd\x47\x6c\x37\xe7\xe9\xa8\x4e"
"\x2e\x5d\xa2\x69\x6e\x28\x5a\x59\xb5\x3f\x2f\xb0\xe1\x6d\x82\x62\xc0\x80"
"\xc1\x59\xce\x40\xc1\x40\x89\xc8\x27\x59\x10\x6f\x42\x25\x82\xb4\x2e\x3e"
"\x84\x84\xea\x5a\x6a\xd9\xaa\x52\x10\x6e\xaf\xe0\xe0\xca\xea\x1a\xd4\xcb"
"\x23\xf3\xc2\xb8\xa0\xf4\x55\xba\x69\xea\x28\x4c\x26\x8d\x54\xb4\x31\x58"
"\xa8\xb1\xd1\x28\xd0\x2a\xf2\x63\xb3\xdc\x1c\xab\x79\x4c\x9a\xc5\x7a\x2a"
"\x73\x32\xf4\xd8\x76\x4c\x30\x2c\xcd\x5a\xac\x11\x44\x82\xb6\x19\xfc\x57"
"\x5a\xa0\xdd\x27\x77\xe8\x81\xe2\x9a\x85\x43\x80\xe2\xf1\xe4\x9d\xb5\xa1"
"\x51\x7e\xc4\x0b\xb3\xfa\x44\xf9\x95\x9b\xad\x67\xcc\xab\xa7\x64\x08\xda"
"\x35\xc9\xf1\x53\x4c\x8b\xd4\x8b\xbd\x61\x62\x7a\x2e\x0a\x74\xb5\xe6\xae"
"\xfb\x7e\xee\x40\x3f\x02\x73\x41\x37\xff\x47\x25\x58\x01\x43\x91\xc6\x73"
"\xb6\x07\x1b\x6a\xd0\xf0\x5e\xed\x16\x4c\xa6\x3e\x4e\xa2\x6d\xce\x0f\xb3"
"\xce\x0f\x65\x91\xd8\x0d\xfb\x8f\x38\x6b\xb7\x9f\x55\x89\x82\x9b\x6b\x06"
"\x79\xb5\xd6\x5a\x81\x82\x6f\xc9\xb3\x8f\x79\x1c\x8f\x18\x92\xb5\x1a\xd6"
"\x5a\x89\xbc\x84\x64\x6e\xbf\x78\xf5\xd5\xd4\x80\x4d\x9a\xbb\x07\x1f\xd7"
"\x11\xb5\xe7\xcc\x16\x3b\x42\xa6\x51\x0b\x8f\x5e\xe6\x74\x7d\xf0\xb5\x60"
"\xea\xbe\x04\x99\xbf\x1f\xef\x7c\x18\xbb\x9f\x55\xef\xfa\x01\x86\x79\x84"
"\x5c\x65\x98\xfb\x78\xbf\x1b\x8d\x9d\x9f\x04\xa5\xf6\x06\x2c\x2b\xbb\x91"
"\x95\x27\x55\xb3\xf7\xc9\x48\x26\x8c\xb6\x47\xd0\xa0\xbb\x12\x86\x48\x06"
"\x15\x94\x11\x54\xa0\x1d\x74\xe2\xf2\xef\xa7\x78\x50\x68\x6e\xe4\x54\x1f"
"\x3e\x79\xef\xa6\x35\x45\xa7\xae\x53\xd5\xf0\xc4\x0c\xc8\x64\x73\xf7\xeb"
"\x09\x39\x80\xbd\x0d\x97\xbb\x47\x50\x12\x8d\x9c\x51\x99\x84\xc5\xf7\x31"
"\xea\x25\x9e\x71\xb2\xf1\x2d\x67\xce\x12\xe5\x2c\x28\x3e\x74\x59\x4d\xfc"
"\x93\x3e\x62\x57\x37\xed\x23\x1d\x61\x26\x37\x21\xd4\x6d\xaf\x09\x3f\x77"
"\x03\x57\xcd\x78\xfe\x14\x31\xae\xf5\x2b\x4a\x0a\x93\x3f\x1a\x53\x34\xad"
"\x03\xf3\x87\x6f\xc8\xa8\xe1\x87\xf8\x03\x18\x42\x7b\x4c\x92\x20\x75\xcf"
"\x82\x9e\x3c\xc4\x9d\x71\xd5\x21\x37\xb4\x8e\x1f\xb6\xb0\x5d\xd1\xc7\xb2"
"\x51\xa7\x05\x9f\x0a\x4b\x4f\x34\x31\xf6\x7f\xc6\x5b\x75\xc2\x02\xe4\x38"
"\x16\xe3\x4f\xf4\x1d\x25\x24\x28\x30\xb7\x88\xae\x1e\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00\x00\x00\x00\xc8\xb8\xb5\xb1\x37\xdc\xb7\xa7\x94\x9e"
"\x12\x30\x7d\x1f\xce\x56\xfe\x5b\x76\xd2\xf3\xf5\xa7\x69\x23\x79\x54\x2e"
"\x3f\xd9\xa5\xa7\xdc\x57\xe1\xde\xc0\xbd\xce\x65\xb5\xdb\x59\xa0\x73\x3c"
"\x9b\x9d\xa6\x12\xad\xb9\x19\x48\xec\xbf\xaf\xf8\xfc\x20\x6b\x83\x50\xfe"
"\x26\x8b\x98\xaa\xa2\xe2\x88\xbe\x77\xae\xdd\xdc\xc7\xfb\x7d\x63\x1e\x69"
"\xb1\x76\xe2\x00\x00\x00\x00\x00",
2654);
*(uint64_t*)0x20000210 = 0x20000340;
memcpy((void*)0x20000340, "syzkaller\000", 10);
*(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 = 8;
*(uint64_t*)0x20000250 = 0;
*(uint32_t*)0x20000258 = 0;
*(uint32_t*)0x2000025c = 0x10;
*(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 = 0x10;
*(uint32_t*)0x2000028c = 0;
res = syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x20000200ul, /*size=*/0x48ul);
if (res != -1)
r[0] = res;
*(uint32_t*)0x20000080 = r[0];
*(uint32_t*)0x20000084 = 0x2a0;
*(uint32_t*)0x20000088 = 0xf;
*(uint32_t*)0x2000008c = 0;
*(uint64_t*)0x20000090 = 0x20000100;
memcpy((void*)0x20000100,
"\xb9\xff\x0b\x07\x68\x59\x26\x8c\xb8\x9e\x14\xf0\x88\xa8\x47", 15);
*(uint64_t*)0x20000098 = 0;
*(uint32_t*)0x200000a0 = 0x10;
*(uint32_t*)0x200000a4 = 0x60000000;
*(uint32_t*)0x200000a8 = 0;
*(uint32_t*)0x200000ac = 0;
*(uint64_t*)0x200000b0 = 0;
*(uint64_t*)0x200000b8 = 0;
*(uint32_t*)0x200000c0 = 0;
*(uint32_t*)0x200000c4 = 0;
*(uint32_t*)0x200000c8 = 0;
syscall(__NR_bpf, /*cmd=*/0xaul, /*arg=*/0x20000080ul, /*size=*/0x50ul);
}
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);
do_sandbox_none();
return 0;
}