// https://syzkaller.appspot.com/bug?id=df97ecb64ef8c4c4e4519c03d614b891c8fbf096
// 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 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 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
#define XT_TABLE_SIZE 1536
#define XT_MAX_ENTRIES 10
struct xt_counters {
uint64_t pcnt, bcnt;
};
struct ipt_getinfo {
char name[32];
unsigned int valid_hooks;
unsigned int hook_entry[5];
unsigned int underflow[5];
unsigned int num_entries;
unsigned int size;
};
struct ipt_get_entries {
char name[32];
unsigned int size;
uint64_t entrytable[XT_TABLE_SIZE / sizeof(uint64_t)];
};
struct ipt_replace {
char name[32];
unsigned int valid_hooks;
unsigned int num_entries;
unsigned int size;
unsigned int hook_entry[5];
unsigned int underflow[5];
unsigned int num_counters;
struct xt_counters* counters;
uint64_t entrytable[XT_TABLE_SIZE / sizeof(uint64_t)];
};
struct ipt_table_desc {
const char* name;
struct ipt_getinfo info;
struct ipt_replace replace;
};
static struct ipt_table_desc ipv4_tables[] = {
{.name = "filter"}, {.name = "nat"}, {.name = "mangle"},
{.name = "raw"}, {.name = "security"},
};
static struct ipt_table_desc ipv6_tables[] = {
{.name = "filter"}, {.name = "nat"}, {.name = "mangle"},
{.name = "raw"}, {.name = "security"},
};
#define IPT_BASE_CTL 64
#define IPT_SO_SET_REPLACE (IPT_BASE_CTL)
#define IPT_SO_GET_INFO (IPT_BASE_CTL)
#define IPT_SO_GET_ENTRIES (IPT_BASE_CTL + 1)
struct arpt_getinfo {
char name[32];
unsigned int valid_hooks;
unsigned int hook_entry[3];
unsigned int underflow[3];
unsigned int num_entries;
unsigned int size;
};
struct arpt_get_entries {
char name[32];
unsigned int size;
uint64_t entrytable[XT_TABLE_SIZE / sizeof(uint64_t)];
};
struct arpt_replace {
char name[32];
unsigned int valid_hooks;
unsigned int num_entries;
unsigned int size;
unsigned int hook_entry[3];
unsigned int underflow[3];
unsigned int num_counters;
struct xt_counters* counters;
uint64_t entrytable[XT_TABLE_SIZE / sizeof(uint64_t)];
};
struct arpt_table_desc {
const char* name;
struct arpt_getinfo info;
struct arpt_replace replace;
};
static struct arpt_table_desc arpt_tables[] = {
{.name = "filter"},
};
#define ARPT_BASE_CTL 96
#define ARPT_SO_SET_REPLACE (ARPT_BASE_CTL)
#define ARPT_SO_GET_INFO (ARPT_BASE_CTL)
#define ARPT_SO_GET_ENTRIES (ARPT_BASE_CTL + 1)
static void checkpoint_iptables(struct ipt_table_desc* tables, int num_tables,
int family, int level)
{
int fd = socket(family, SOCK_STREAM, IPPROTO_TCP);
if (fd == -1) {
switch (errno) {
case EAFNOSUPPORT:
case ENOPROTOOPT:
return;
}
exit(1);
}
for (int i = 0; i < num_tables; i++) {
struct ipt_table_desc* table = &tables[i];
strcpy(table->info.name, table->name);
strcpy(table->replace.name, table->name);
socklen_t optlen = sizeof(table->info);
if (getsockopt(fd, level, IPT_SO_GET_INFO, &table->info, &optlen)) {
switch (errno) {
case EPERM:
case ENOENT:
case ENOPROTOOPT:
continue;
}
exit(1);
}
if (table->info.size > sizeof(table->replace.entrytable))
exit(1);
if (table->info.num_entries > XT_MAX_ENTRIES)
exit(1);
struct ipt_get_entries entries;
memset(&entries, 0, sizeof(entries));
strcpy(entries.name, table->name);
entries.size = table->info.size;
optlen = sizeof(entries) - sizeof(entries.entrytable) + table->info.size;
if (getsockopt(fd, level, IPT_SO_GET_ENTRIES, &entries, &optlen))
exit(1);
table->replace.valid_hooks = table->info.valid_hooks;
table->replace.num_entries = table->info.num_entries;
table->replace.size = table->info.size;
memcpy(table->replace.hook_entry, table->info.hook_entry,
sizeof(table->replace.hook_entry));
memcpy(table->replace.underflow, table->info.underflow,
sizeof(table->replace.underflow));
memcpy(table->replace.entrytable, entries.entrytable, table->info.size);
}
close(fd);
}
static void reset_iptables(struct ipt_table_desc* tables, int num_tables,
int family, int level)
{
int fd = socket(family, SOCK_STREAM, IPPROTO_TCP);
if (fd == -1) {
switch (errno) {
case EAFNOSUPPORT:
case ENOPROTOOPT:
return;
}
exit(1);
}
for (int i = 0; i < num_tables; i++) {
struct ipt_table_desc* table = &tables[i];
if (table->info.valid_hooks == 0)
continue;
struct ipt_getinfo info;
memset(&info, 0, sizeof(info));
strcpy(info.name, table->name);
socklen_t optlen = sizeof(info);
if (getsockopt(fd, level, IPT_SO_GET_INFO, &info, &optlen))
exit(1);
if (memcmp(&table->info, &info, sizeof(table->info)) == 0) {
struct ipt_get_entries entries;
memset(&entries, 0, sizeof(entries));
strcpy(entries.name, table->name);
entries.size = table->info.size;
optlen = sizeof(entries) - sizeof(entries.entrytable) + entries.size;
if (getsockopt(fd, level, IPT_SO_GET_ENTRIES, &entries, &optlen))
exit(1);
if (memcmp(table->replace.entrytable, entries.entrytable,
table->info.size) == 0)
continue;
}
struct xt_counters counters[XT_MAX_ENTRIES];
table->replace.num_counters = info.num_entries;
table->replace.counters = counters;
optlen = sizeof(table->replace) - sizeof(table->replace.entrytable) +
table->replace.size;
if (setsockopt(fd, level, IPT_SO_SET_REPLACE, &table->replace, optlen))
exit(1);
}
close(fd);
}
static void checkpoint_arptables(void)
{
int fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
if (fd == -1) {
switch (errno) {
case EAFNOSUPPORT:
case ENOPROTOOPT:
return;
}
exit(1);
}
for (unsigned i = 0; i < sizeof(arpt_tables) / sizeof(arpt_tables[0]); i++) {
struct arpt_table_desc* table = &arpt_tables[i];
strcpy(table->info.name, table->name);
strcpy(table->replace.name, table->name);
socklen_t optlen = sizeof(table->info);
if (getsockopt(fd, SOL_IP, ARPT_SO_GET_INFO, &table->info, &optlen)) {
switch (errno) {
case EPERM:
case ENOENT:
case ENOPROTOOPT:
continue;
}
exit(1);
}
if (table->info.size > sizeof(table->replace.entrytable))
exit(1);
if (table->info.num_entries > XT_MAX_ENTRIES)
exit(1);
struct arpt_get_entries entries;
memset(&entries, 0, sizeof(entries));
strcpy(entries.name, table->name);
entries.size = table->info.size;
optlen = sizeof(entries) - sizeof(entries.entrytable) + table->info.size;
if (getsockopt(fd, SOL_IP, ARPT_SO_GET_ENTRIES, &entries, &optlen))
exit(1);
table->replace.valid_hooks = table->info.valid_hooks;
table->replace.num_entries = table->info.num_entries;
table->replace.size = table->info.size;
memcpy(table->replace.hook_entry, table->info.hook_entry,
sizeof(table->replace.hook_entry));
memcpy(table->replace.underflow, table->info.underflow,
sizeof(table->replace.underflow));
memcpy(table->replace.entrytable, entries.entrytable, table->info.size);
}
close(fd);
}
static void reset_arptables()
{
int fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
if (fd == -1) {
switch (errno) {
case EAFNOSUPPORT:
case ENOPROTOOPT:
return;
}
exit(1);
}
for (unsigned i = 0; i < sizeof(arpt_tables) / sizeof(arpt_tables[0]); i++) {
struct arpt_table_desc* table = &arpt_tables[i];
if (table->info.valid_hooks == 0)
continue;
struct arpt_getinfo info;
memset(&info, 0, sizeof(info));
strcpy(info.name, table->name);
socklen_t optlen = sizeof(info);
if (getsockopt(fd, SOL_IP, ARPT_SO_GET_INFO, &info, &optlen))
exit(1);
if (memcmp(&table->info, &info, sizeof(table->info)) == 0) {
struct arpt_get_entries entries;
memset(&entries, 0, sizeof(entries));
strcpy(entries.name, table->name);
entries.size = table->info.size;
optlen = sizeof(entries) - sizeof(entries.entrytable) + entries.size;
if (getsockopt(fd, SOL_IP, ARPT_SO_GET_ENTRIES, &entries, &optlen))
exit(1);
if (memcmp(table->replace.entrytable, entries.entrytable,
table->info.size) == 0)
continue;
} else {
}
struct xt_counters counters[XT_MAX_ENTRIES];
table->replace.num_counters = info.num_entries;
table->replace.counters = counters;
optlen = sizeof(table->replace) - sizeof(table->replace.entrytable) +
table->replace.size;
if (setsockopt(fd, SOL_IP, ARPT_SO_SET_REPLACE, &table->replace, optlen))
exit(1);
}
close(fd);
}
#define NF_BR_NUMHOOKS 6
#define EBT_TABLE_MAXNAMELEN 32
#define EBT_CHAIN_MAXNAMELEN 32
#define EBT_BASE_CTL 128
#define EBT_SO_SET_ENTRIES (EBT_BASE_CTL)
#define EBT_SO_GET_INFO (EBT_BASE_CTL)
#define EBT_SO_GET_ENTRIES (EBT_SO_GET_INFO + 1)
#define EBT_SO_GET_INIT_INFO (EBT_SO_GET_ENTRIES + 1)
#define EBT_SO_GET_INIT_ENTRIES (EBT_SO_GET_INIT_INFO + 1)
struct ebt_replace {
char name[EBT_TABLE_MAXNAMELEN];
unsigned int valid_hooks;
unsigned int nentries;
unsigned int entries_size;
struct ebt_entries* hook_entry[NF_BR_NUMHOOKS];
unsigned int num_counters;
struct ebt_counter* counters;
char* entries;
};
struct ebt_entries {
unsigned int distinguisher;
char name[EBT_CHAIN_MAXNAMELEN];
unsigned int counter_offset;
int policy;
unsigned int nentries;
char data[0] __attribute__((aligned(__alignof__(struct ebt_replace))));
};
struct ebt_table_desc {
const char* name;
struct ebt_replace replace;
char entrytable[XT_TABLE_SIZE];
};
static struct ebt_table_desc ebt_tables[] = {
{.name = "filter"},
{.name = "nat"},
{.name = "broute"},
};
static void checkpoint_ebtables(void)
{
int fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
if (fd == -1) {
switch (errno) {
case EAFNOSUPPORT:
case ENOPROTOOPT:
return;
}
exit(1);
}
for (size_t i = 0; i < sizeof(ebt_tables) / sizeof(ebt_tables[0]); i++) {
struct ebt_table_desc* table = &ebt_tables[i];
strcpy(table->replace.name, table->name);
socklen_t optlen = sizeof(table->replace);
if (getsockopt(fd, SOL_IP, EBT_SO_GET_INIT_INFO, &table->replace,
&optlen)) {
switch (errno) {
case EPERM:
case ENOENT:
case ENOPROTOOPT:
continue;
}
exit(1);
}
if (table->replace.entries_size > sizeof(table->entrytable))
exit(1);
table->replace.num_counters = 0;
table->replace.entries = table->entrytable;
optlen = sizeof(table->replace) + table->replace.entries_size;
if (getsockopt(fd, SOL_IP, EBT_SO_GET_INIT_ENTRIES, &table->replace,
&optlen))
exit(1);
}
close(fd);
}
static void reset_ebtables()
{
int fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
if (fd == -1) {
switch (errno) {
case EAFNOSUPPORT:
case ENOPROTOOPT:
return;
}
exit(1);
}
for (unsigned i = 0; i < sizeof(ebt_tables) / sizeof(ebt_tables[0]); i++) {
struct ebt_table_desc* table = &ebt_tables[i];
if (table->replace.valid_hooks == 0)
continue;
struct ebt_replace replace;
memset(&replace, 0, sizeof(replace));
strcpy(replace.name, table->name);
socklen_t optlen = sizeof(replace);
if (getsockopt(fd, SOL_IP, EBT_SO_GET_INFO, &replace, &optlen))
exit(1);
replace.num_counters = 0;
table->replace.entries = 0;
for (unsigned h = 0; h < NF_BR_NUMHOOKS; h++)
table->replace.hook_entry[h] = 0;
if (memcmp(&table->replace, &replace, sizeof(table->replace)) == 0) {
char entrytable[XT_TABLE_SIZE];
memset(&entrytable, 0, sizeof(entrytable));
replace.entries = entrytable;
optlen = sizeof(replace) + replace.entries_size;
if (getsockopt(fd, SOL_IP, EBT_SO_GET_ENTRIES, &replace, &optlen))
exit(1);
if (memcmp(table->entrytable, entrytable, replace.entries_size) == 0)
continue;
}
for (unsigned j = 0, h = 0; h < NF_BR_NUMHOOKS; h++) {
if (table->replace.valid_hooks & (1 << h)) {
table->replace.hook_entry[h] =
(struct ebt_entries*)table->entrytable + j;
j++;
}
}
table->replace.entries = table->entrytable;
optlen = sizeof(table->replace) + table->replace.entries_size;
if (setsockopt(fd, SOL_IP, EBT_SO_SET_ENTRIES, &table->replace, optlen))
exit(1);
}
close(fd);
}
static void checkpoint_net_namespace(void)
{
checkpoint_ebtables();
checkpoint_arptables();
checkpoint_iptables(ipv4_tables, sizeof(ipv4_tables) / sizeof(ipv4_tables[0]),
AF_INET, SOL_IP);
checkpoint_iptables(ipv6_tables, sizeof(ipv6_tables) / sizeof(ipv6_tables[0]),
AF_INET6, SOL_IPV6);
}
static void reset_net_namespace(void)
{
reset_ebtables();
reset_arptables();
reset_iptables(ipv4_tables, sizeof(ipv4_tables) / sizeof(ipv4_tables[0]),
AF_INET, SOL_IP);
reset_iptables(ipv6_tables, sizeof(ipv6_tables) / sizeof(ipv6_tables[0]),
AF_INET6, SOL_IPV6);
}
static void mount_cgroups(const char* dir, const char** controllers, int count)
{
if (mkdir(dir, 0777)) {
return;
}
char enabled[128] = {0};
int i = 0;
for (; i < count; i++) {
if (mount("none", dir, "cgroup", 0, controllers[i])) {
continue;
}
umount(dir);
strcat(enabled, ",");
strcat(enabled, controllers[i]);
}
if (enabled[0] == 0) {
if (rmdir(dir) && errno != EBUSY)
exit(1);
return;
}
if (mount("none", dir, "cgroup", 0, enabled + 1)) {
if (rmdir(dir) && errno != EBUSY)
exit(1);
}
if (chmod(dir, 0777)) {
}
}
static void mount_cgroups2(const char** controllers, int count)
{
if (mkdir("/syzcgroup/unified", 0777)) {
return;
}
if (mount("none", "/syzcgroup/unified", "cgroup2", 0, NULL)) {
if (rmdir("/syzcgroup/unified") && errno != EBUSY)
exit(1);
return;
}
if (chmod("/syzcgroup/unified", 0777)) {
}
int control = open("/syzcgroup/unified/cgroup.subtree_control", O_WRONLY);
if (control == -1)
return;
int i;
for (i = 0; i < count; i++)
if (write(control, controllers[i], strlen(controllers[i])) < 0) {
}
close(control);
}
static void setup_cgroups()
{
const char* unified_controllers[] = {"+cpu", "+io", "+pids"};
const char* net_controllers[] = {"net", "net_prio", "devices", "blkio",
"freezer"};
const char* cpu_controllers[] = {"cpuset", "cpuacct", "hugetlb", "rlimit",
"memory"};
if (mkdir("/syzcgroup", 0777)) {
return;
}
mount_cgroups2(unified_controllers,
sizeof(unified_controllers) / sizeof(unified_controllers[0]));
mount_cgroups("/syzcgroup/net", net_controllers,
sizeof(net_controllers) / sizeof(net_controllers[0]));
mount_cgroups("/syzcgroup/cpu", cpu_controllers,
sizeof(cpu_controllers) / sizeof(cpu_controllers[0]));
write_file("/syzcgroup/cpu/cgroup.clone_children", "1");
write_file("/syzcgroup/cpu/cpuset.memory_pressure_enabled", "1");
}
static void setup_cgroups_loop()
{
int pid = getpid();
char file[128];
char cgroupdir[64];
snprintf(cgroupdir, sizeof(cgroupdir), "/syzcgroup/unified/syz%llu", procid);
if (mkdir(cgroupdir, 0777)) {
}
snprintf(file, sizeof(file), "%s/pids.max", cgroupdir);
write_file(file, "32");
snprintf(file, sizeof(file), "%s/cgroup.procs", cgroupdir);
write_file(file, "%d", pid);
snprintf(cgroupdir, sizeof(cgroupdir), "/syzcgroup/cpu/syz%llu", procid);
if (mkdir(cgroupdir, 0777)) {
}
snprintf(file, sizeof(file), "%s/cgroup.procs", cgroupdir);
write_file(file, "%d", pid);
snprintf(file, sizeof(file), "%s/memory.soft_limit_in_bytes", cgroupdir);
write_file(file, "%d", 299 << 20);
snprintf(file, sizeof(file), "%s/memory.limit_in_bytes", cgroupdir);
write_file(file, "%d", 300 << 20);
snprintf(cgroupdir, sizeof(cgroupdir), "/syzcgroup/net/syz%llu", procid);
if (mkdir(cgroupdir, 0777)) {
}
snprintf(file, sizeof(file), "%s/cgroup.procs", cgroupdir);
write_file(file, "%d", pid);
}
static void setup_cgroups_test()
{
char cgroupdir[64];
snprintf(cgroupdir, sizeof(cgroupdir), "/syzcgroup/unified/syz%llu", procid);
if (symlink(cgroupdir, "./cgroup")) {
}
snprintf(cgroupdir, sizeof(cgroupdir), "/syzcgroup/cpu/syz%llu", procid);
if (symlink(cgroupdir, "./cgroup.cpu")) {
}
snprintf(cgroupdir, sizeof(cgroupdir), "/syzcgroup/net/syz%llu", procid);
if (symlink(cgroupdir, "./cgroup.net")) {
}
}
static void setup_common()
{
if (mount(0, "/sys/fs/fuse/connections", "fusectl", 0, 0)) {
}
}
static void setup_binderfs()
{
if (mkdir("/dev/binderfs", 0777)) {
}
if (mount("binder", "/dev/binderfs", "binder", 0, NULL)) {
}
}
static void loop();
static void sandbox_common()
{
prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0);
setsid();
struct rlimit rlim;
rlim.rlim_cur = rlim.rlim_max = (200 << 20);
setrlimit(RLIMIT_AS, &rlim);
rlim.rlim_cur = rlim.rlim_max = 32 << 20;
setrlimit(RLIMIT_MEMLOCK, &rlim);
rlim.rlim_cur = rlim.rlim_max = 136 << 20;
setrlimit(RLIMIT_FSIZE, &rlim);
rlim.rlim_cur = rlim.rlim_max = 1 << 20;
setrlimit(RLIMIT_STACK, &rlim);
rlim.rlim_cur = rlim.rlim_max = 128 << 20;
setrlimit(RLIMIT_CORE, &rlim);
rlim.rlim_cur = rlim.rlim_max = 256;
setrlimit(RLIMIT_NOFILE, &rlim);
if (unshare(CLONE_NEWNS)) {
}
if (mount(NULL, "/", NULL, MS_REC | MS_PRIVATE, NULL)) {
}
if (unshare(CLONE_NEWIPC)) {
}
if (unshare(0x02000000)) {
}
if (unshare(CLONE_NEWUTS)) {
}
if (unshare(CLONE_SYSVSEM)) {
}
typedef struct {
const char* name;
const char* value;
} sysctl_t;
static const sysctl_t sysctls[] = {
{"/proc/sys/kernel/shmmax", "16777216"},
{"/proc/sys/kernel/shmall", "536870912"},
{"/proc/sys/kernel/shmmni", "1024"},
{"/proc/sys/kernel/msgmax", "8192"},
{"/proc/sys/kernel/msgmni", "1024"},
{"/proc/sys/kernel/msgmnb", "1024"},
{"/proc/sys/kernel/sem", "1024 1048576 500 1024"},
};
unsigned i;
for (i = 0; i < sizeof(sysctls) / sizeof(sysctls[0]); i++)
write_file(sysctls[i].name, sysctls[i].value);
}
static int wait_for_loop(int pid)
{
if (pid < 0)
exit(1);
int status = 0;
while (waitpid(-1, &status, __WALL) != pid) {
}
return WEXITSTATUS(status);
}
static void drop_caps(void)
{
struct __user_cap_header_struct cap_hdr = {};
struct __user_cap_data_struct cap_data[2] = {};
cap_hdr.version = _LINUX_CAPABILITY_VERSION_3;
cap_hdr.pid = getpid();
if (syscall(SYS_capget, &cap_hdr, &cap_data))
exit(1);
const int drop = (1 << CAP_SYS_PTRACE) | (1 << CAP_SYS_NICE);
cap_data[0].effective &= ~drop;
cap_data[0].permitted &= ~drop;
cap_data[0].inheritable &= ~drop;
if (syscall(SYS_capset, &cap_hdr, &cap_data))
exit(1);
}
static int do_sandbox_none(void)
{
if (unshare(CLONE_NEWPID)) {
}
int pid = fork();
if (pid != 0)
return wait_for_loop(pid);
setup_common();
sandbox_common();
drop_caps();
initialize_netdevices_init();
if (unshare(CLONE_NEWNET)) {
}
write_file("/proc/sys/net/ipv4/ping_group_range", "0 65535");
initialize_tun();
initialize_netdevices();
setup_binderfs();
loop();
exit(1);
}
#define FS_IOC_SETFLAGS _IOW('f', 2, long)
static void remove_dir(const char* dir)
{
int iter = 0;
DIR* dp = 0;
retry:
while (umount2(dir, MNT_DETACH | UMOUNT_NOFOLLOW) == 0) {
}
dp = opendir(dir);
if (dp == NULL) {
if (errno == EMFILE) {
exit(1);
}
exit(1);
}
struct dirent* ep = 0;
while ((ep = readdir(dp))) {
if (strcmp(ep->d_name, ".") == 0 || strcmp(ep->d_name, "..") == 0)
continue;
char filename[FILENAME_MAX];
snprintf(filename, sizeof(filename), "%s/%s", dir, ep->d_name);
while (umount2(filename, MNT_DETACH | UMOUNT_NOFOLLOW) == 0) {
}
struct stat st;
if (lstat(filename, &st))
exit(1);
if (S_ISDIR(st.st_mode)) {
remove_dir(filename);
continue;
}
int i;
for (i = 0;; i++) {
if (unlink(filename) == 0)
break;
if (errno == EPERM) {
int fd = open(filename, O_RDONLY);
if (fd != -1) {
long flags = 0;
if (ioctl(fd, FS_IOC_SETFLAGS, &flags) == 0) {
}
close(fd);
continue;
}
}
if (errno == EROFS) {
break;
}
if (errno != EBUSY || i > 100)
exit(1);
if (umount2(filename, MNT_DETACH | UMOUNT_NOFOLLOW))
exit(1);
}
}
closedir(dp);
for (int i = 0;; i++) {
if (rmdir(dir) == 0)
break;
if (i < 100) {
if (errno == EPERM) {
int fd = open(dir, O_RDONLY);
if (fd != -1) {
long flags = 0;
if (ioctl(fd, FS_IOC_SETFLAGS, &flags) == 0) {
}
close(fd);
continue;
}
}
if (errno == EROFS) {
break;
}
if (errno == EBUSY) {
if (umount2(dir, MNT_DETACH | UMOUNT_NOFOLLOW))
exit(1);
continue;
}
if (errno == ENOTEMPTY) {
if (iter < 100) {
iter++;
goto retry;
}
}
}
exit(1);
}
}
static void kill_and_wait(int pid, int* status)
{
kill(-pid, SIGKILL);
kill(pid, SIGKILL);
for (int i = 0; i < 100; i++) {
if (waitpid(-1, status, WNOHANG | __WALL) == pid)
return;
usleep(1000);
}
DIR* dir = opendir("/sys/fs/fuse/connections");
if (dir) {
for (;;) {
struct dirent* ent = readdir(dir);
if (!ent)
break;
if (strcmp(ent->d_name, ".") == 0 || strcmp(ent->d_name, "..") == 0)
continue;
char abort[300];
snprintf(abort, sizeof(abort), "/sys/fs/fuse/connections/%s/abort",
ent->d_name);
int fd = open(abort, O_WRONLY);
if (fd == -1) {
continue;
}
if (write(fd, abort, 1) < 0) {
}
close(fd);
}
closedir(dir);
} else {
}
while (waitpid(-1, status, __WALL) != pid) {
}
}
static void setup_loop()
{
setup_cgroups_loop();
checkpoint_net_namespace();
}
static void reset_loop()
{
reset_net_namespace();
}
static void setup_test()
{
prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0);
setpgrp();
setup_cgroups_test();
write_file("/proc/self/oom_score_adj", "1000");
flush_tun();
if (symlink("/dev/binderfs", "./binderfs")) {
}
}
static void close_fds()
{
for (int fd = 3; fd < MAX_FDS; fd++)
close(fd);
}
static void setup_usb()
{
if (chmod("/dev/raw-gadget", 0666))
exit(1);
}
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 (;;) {
if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid)
break;
sleep_ms(1);
if (current_time_ms() - start < 5000)
continue;
kill_and_wait(pid, &status);
break;
}
remove_dir(cwdbuf);
}
}
uint64_t r[3] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff};
void execute_one(void)
{
intptr_t res = 0;
*(uint32_t*)0x20000980 = 0x11;
*(uint32_t*)0x20000984 = 8;
*(uint64_t*)0x20000988 = 0x20001940;
memcpy(
(void*)0x20001940,
"\x62\x0a\xf8\xff\x0c\x03\x00\x21\xbf\xa1\x00\x00\x00\x00\x00\x00\x07\x01"
"\x00\x00\xf8\xff\xff\xff\xb7\x02\x00\x00\x03\x00\x00\x00\xbd\x12\x00\x00"
"\x00\x00\x00\x00\x85\x00\x00\x00\x06\x00\x00\x00\xb7\x00\x00\x00\x00\x00"
"\x00\x00\x95\x00\x00\x00\x00\x00\x00\x00\x3f\xaf\x4f\x1e\x7f\x2a\xa3\xd9"
"\xb1\x8e\xd8\x1c\x0c\x86\x9b\x51\xec\x6c\x0a\xf4\xe0\xe4\xa9\x44\x6c\x76"
"\x70\x56\x89\x82\xb4\xe0\x20\xf6\x98\x39\x3a\xa0\xf3\x88\x1f\x9c\x24\xaa"
"\x56\xf1\x51\x99\xfa\xd0\x09\x3c\x59\xd6\x6b\x5e\xce\x9f\x36\xc7\x0d\x0f"
"\x13\x90\x5e\xa2\x3c\x22\x62\x4c\x9f\x87\xf9\xe0\x10\x6e\xa3\x00\xeb\xdf"
"\x08\x73\x77\x4f\x4a\x81\x96\x79\x3f\x50\xbb\x54\x60\x40\x67\x7b\x0c\x50"
"\x77\xda\x80\xfb\x98\x2c\x1e\x94\x00\xe6\x93\x14\x6c\xea\x48\x4a\x41\x5b"
"\x76\x96\x61\x18\xb6\x4f\x75\x1a\x0f\x24\x1b\x07\x2e\x90\x08\x00\x08\x00"
"\x2d\x75\x59\x3a\x28\x6c\xec\xc9\x3e\x64\xc2\x27\xc9\x5a\xa0\xb7\x84\x62"
"\x57\x04\xf0\x7a\x72\xc2\x34\x66\x4c\x0a\xf9\x36\x0a\x1f\x7a\x5e\x6b\x60"
"\x71\x30\xc8\x9f\x18\xc0\xc1\x08\x9d\x8b\x85\x32\x89\xe0\x1a\xa2\x7a\xe8"
"\xb0\x9e\x00\xe7\x9a\xb2\x0b\x0b\x8e\x11\x48\xf4\x9f\xaf\x2a\xd0\x00\x00"
"\x00\x00\x00\x00\x00\x6f\xa0\x3c\x64\x68\x97\x20\x89\xb3\x02\xd7\xbf\x60"
"\x23\xcd\xce\xdb\x5e\x01\x25\xeb\xbc\x08\xde\xe5\x10\xcb\x23\x64\x14\x92"
"\x15\x10\x83\x33\x71\x9a\xcd\x97\xcf\xa1\x07\xd4\x02\x24\xed\xc5\x46\x5a"
"\x93\x2b\x77\xe7\x4e\x80\x2a\x0d\x42\xbc\x60\x99\xad\x23\x00\x00\x00\x80"
"\x00\x6e\xf6\xc1\xff\x09\x00\x00\x00\x00\x00\x00\x10\xc6\x3a\x94\x9e\x8b"
"\x79\x55\x39\x68\xfa\x82\xb8\xe9\x42\xc8\x91\x12\xf4\xab\x87\xb1\xbf\xed"
"\xa7\xbe\x58\x66\x02\xd9\x85\x43\x0c\xea\x01\x62\xab\x3f\xcf\x45\x91\xc9"
"\x26\xab\xfb\x07\x67\x19\x23\x02\x00\x00\x00\xb0\xee\xa2\x44\x92\xa6\x60"
"\x58\x3e\xec\xb4\x2c\xbc\xd3\xde\x3a\x83\x20\x9d\xa1\x7a\x0f\xaf\x60\xfd"
"\x6a\xd9\xb9\x7a\xa5\xfa\x68\x48\x03\x66\xc9\xc6\xfd\x6f\xa5\x04\x3a\xa3"
"\x92\x6b\x81\xe3\xb5\x9c\x95\xc2\x5a\x57\x3d\xc2\xed\xca\xea\x2b\x1a\x52"
"\x49\x6d\xfc\xaf\x99\x43\x14\x12\xfd\x13\x4a\x99\x63\x82\xa1\xa0\x4d\x5b"
"\xb9\x24\xcf\xe5\xf3\x18\x54\x18\xd6\x05\xff\xff\x9c\x4d\x2e\xc7\xc3\x2f"
"\x20\x95\xe6\x3c\x80\xaf\xf9\xfa\x74\x0b\x5b\x76\x32\xf3\x20\x30\x91\x6f"
"\x89\xc6\xda\xd7\x60\x3f\x2b\xa2\xa7\x90\xd6\x2d\x6f\xae\xc2\xfe\xd4\x4d"
"\xa4\x92\x8b\x30\x14\x2b\xa1\x1d\xe6\xc5\xd5\x0b\x83\xba\xe6\x13\x40\x22"
"\x16\xb5\x05\x4d\x1e\x7c\x13\xb1\x35\x5d\x6f\x4a\x82\x45\xff\xa4\x99\x7d"
"\xa9\xc7\x7a\xf4\xc0\xeb\x97\xfc\xa5\x85\xec\x6b\xf5\x83\x51\xd5\x64\xbe"
"\xb6\xd9\x52\xaa\xb9\xc7\x07\x64\xb0\xa8\xa7\x58\x3c\x90\xb3\x43\x3b\x80"
"\x9b\xdb\x9f\xbd\x48\xbc\x87\x34\x95\xcb\xff\x90\x32\x6e\xea\x31\xae\x4e"
"\x0f\x75\x05\xeb\xf6\xc9\xd1\x33\x30\xca\x00\x5a\xce\x1a\x84\x52\x1f\x14"
"\x51\x8c\x9b\x47\x6f\xcc\xbd\x6c\x71\x20\x16\x21\x98\x48\x62\x4b\x87\xce"
"\xc2\xdb\xe9\x82\x23\xa0\xeb\x4f\xa3\x9f\x6b\x5c\x02\xe6\xd6\xd9\x07\x56"
"\xff\x57\x90\x2a\x8f\x57\x00\x00\x00\x00\x97\x00\xcf\x0b\x4b\x8b\xc2\x29"
"\x41\x33\x00\x00\x00\x00\x00\x00\x00\x00\x00\x03\x00\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00\x00\x00\x10\x00\x8b\xc0\xd9\x55\x97\x11\xe6\xe8\x86"
"\x1c\x46\x49\x5b\xa5\x85\xa4\xb2\xd0\x2e\xdc\x3e\x28\xdd\x27\x1c\x89\x62"
"\x49\xed\x85\xb9\x80\x68\x0b\x00\x00\x2b\x43\x5a\xc1\x5f\xc0\x28\x8d\x9b"
"\x2a\x16\x9c\xdc\xac\xc4\x13\x03\x8d\xaf\xb7\xa2\xc8\xcb\x48\x2b\xac\x0a"
"\xc5\x02\xd9\xba\x96\xff\xff\xff\x7f\x00\x00\x10\x00\x00\x00\x08\x00\x00"
"\x7d\x5a\xd8\x97\xef\x3b\x7c\xda\x42\x01\x3d\x53\x04\x6d\xa2\x1b\x40\x21"
"\x6e\x14\xba\x2d\x6a\xd5\x65\x6b\xff\xf1\x7a\xdd\xae\xda\xb2\x5b\x30\x00"
"\x2a\xbb\xba\x7f\xa7\x25\xf3\x84\x00\xbe\x7c\x1f\x00\x1b\x2c\xd3\x17\x90"
"\x2f\x19\xe3\x85\xbe\x9e\x48\xdc\xcf\xf7\x29\x43\x32\x82\x83\x06\x89\xda"
"\x6b\x53\xb2\x63\x33\x98\x63\x29\x77\x71\x42\x9d\x12\x00\x00\x00\x33\x41"
"\xbf\x4a\xba\xca\xc9\x59\x00\xfc\xa0\x49\x3c\xf2\x9b\x33\xdc\xc9\xff\xff"
"\xff\xff\xff\xff\xff\xd3\x9f\xec\x22\x71\xff\x01\x58\x96\x46\xef\xd1\xcf"
"\x87\x0c\xd7\xbb\x23\x66\xfd\xe4\x1f\x94\x29\x0c\x2a\x5f\xf8\x70\xce\x41"
"\xfd\x34\x67\xde\xcb\x05\xcf\xd9\xfc\xb3\x2c\x8e\xd1\xdb\xd9\xd1\x0a\x64"
"\xc1\x08\x3d\x5e\x71\xb5\x56\x5b\x20\x17\x68\xee\x58\x96\x9c\x41\x59\x52"
"\x29\xdf\x17\xbc\xad\x70\xfb\x40\x21\x42\x8c\xe9\x70\x27\x5d\x13\xb7\x81"
"\x00\x78\x8f\x11\xf7\x61\x61\xd4\x6e\xa3\xab\xe0\xfa\x4d\x30\xdc\x94\xef"
"\x24\x18\x75\xf3\xb4\xce\x02\x32\xfc\xea\x69\xc2\x71\xd7\xfa\x29\x82\x2a"
"\xea\x68\xa6\x60\xe7\x17\xa0\x4b\xec\xff\x0f\x71\x91\x97\x72\x4f\x4f\xce"
"\x10\x93\xb6\x2d\x7e\x8c\x71\x23\xd8\xec\x57\x1b\xe5\x4c\x72\xd9\x78\xcf"
"\x90\x6d\xf0\x04\x2e\x36\xac\xd3\x7d\x7f\x9e\x11\x9f\x2c\x06\xf8\x15\x31"
"\x2e\x0c\xfe\x22\x2a\x06\xf5\x6d\xd0\x22\xc0\x74\xeb\x8a\x32\x2f\xb0\xbf"
"\x47\xc0\xa8\xd1\x54\xb4\x05\xc3\x7f\xea\xf3\xdd\x95\xf6\xef\x2a\xe5\x82"
"\x78\x61\x05\xc7\xdf\x8b\xe5\x87\x70\x50\xc9\x13\x01\xbb\x99\x73\x16\xdb"
"\xf1\x78\x66\xfb\x84\xd4\x17\x37\x31\xef\xe8\x95\xff\x2e\x1c\x55\x60\x92"
"\x6e\x90\x10\x9b\x59\x85\x02\xd3\xe9\x59\xef\xc7\x1f\x66\x5c\x4d\x75\xcf"
"\x24\x58\xe3\x54\x6c\x1c\x77\x6d\xa6\x4f\xb5\xab\xee\x0a\xcf\xd2\x35\xf2"
"\xf4\x63\x2c\x90\x62\xec\xe8\x4c\x99\xa0\x61\x88\x7a\x20\x63\x9b\x41\xc8"
"\xc1\x2e\xe8\x6c\x50\x80\x40\x42\xb3\xfb\x5a\xac\x51\x8a\x75\xf9\xe7\xd7"
"\x10\x1d\x5e\x18\x6c\x48\x9b\x3a\x06\xfb\x99\xe0\xaa\x7f\x23\xa0\x54\xde"
"\x2f\x4d\x92\xd6\xbd\x72\xee\x2c\x9f\xdc\x75\xaa\xaf\x1e\x3e\x48\x3b\x4a"
"\xd0\x55\x73\xaf\x40\x32\x69\x93\x94\x7d\x9a\x00\x00\xcb\xf3\x58\x37\x84"
"\xac\xbd\xa2\x16\x55\x0d\x7a\xec\x6b\x79\xe3\x0c\xbd\x12\x8f\x54\xc2\xd3"
"\x33\x54\x57\xac\xf3\x73\x31\x76\x6e\x47\x23\x91\xe3\x58\xc3\xb3\x77\x32"
"\x7a\xc9\xec\xc3\x4f\x24\xc9\xae\x15\x3e\xc6\x0a\xc0\x69\x4d\xc5\x5b\xff"
"\x9f\x5f\x45\xf9\x04\x00\x00\x00\x00\x00\x00\x00\xd6\xb2\xc5\xea\x13\x93"
"\xfd\xf2\x42\x85\xbf\x16\xb9\x9c\x9c\xc0\xad\x18\x57\x21\x6f\x1a\x98\x5f"
"\x36\x91\x91\xae\x95\x4f\xeb\xb3\xdf\x46\x4b\xfe\x0f\x7f\x3e\xe9\xaf\xe7"
"\xbe\xfb\x89\xd2\x77\x73\x99\xf5\x87\x4c\x55\x3a\xeb\x37\x29\xcf\xfe\x86"
"\xe6\x69\x64\xae\x09\xbb\x6d\x16\x31\x18\xe4\xcb\xe0\x24\xfd\x45\x00\xf8"
"\xff\x07\x00\x00\x00\x00\xcc\x9d\x80\x46\xc2\x16\xc1\xf8\x95\x77\x8c\xb2"
"\x51\x22\xa2\xa9\xf9\xb4\x44\xae\xad\xea\x13\x7f\xec\x0a\x29\x47\x52\xd0"
"\x18\x70\x2a\x40\xda\x8d\xac\xcf\x08\x09\x42\xa4\x86\x72\x17\x37\x39\x0c"
"\xbf\x37\x74\xcb\x20\x03\x01\x6f\x15\x14\x21\x6b\xdf\x57\xd2\xa4\x0d\x40"
"\xb5\x1a\xb6\x3e\x96\xec\x84\x85\xb3\xb8\xa8\xc9\xae\x3d\x14\xf9\x31\x00"
"\xc2\xe0\x89\x38\x62\xee\xf5\x52\xfc\xde\x29\x81\xf4\x8c\x48\x2b\xde\x8a"
"\x16\x8c\x3f\x5d\xb2\xfe\xa6\xf2\x6e\x4a\x43\x04\xe5\x0c\x34\x9f\x4f\x9e"
"\xce\xe2\x7d\xef\xc9\x38\x71\xc5\xf9\x9b\x35\x5b\x72\xd5\x38\xba\x49\x58"
"\xea\x8e\x4a\xa3\x70\x24\x6c\x16\x7b\x09\x6e\x7e\x60\xfc\x35\x41\xa2\xc9"
"\x05\xa1\xa9\x5e\x95\x71\xbf\x38\xae\x19\x81\xc4\x23\x8e\xca\xee\x6f\x75"
"\xcd\x0a\x68\x81\xbd\x15\x17\xa8\x25\x0d\xdc\x86\x74\x15\x2f\x94\xe3\xa4"
"\x09\xe2\xa3\xbc\xe1\x09\xb6\x00\x00\x00\x00\x00\x00\x00\x00\xd6\xf5\x21"
"\x0d\x75\x03\x00\x00\x00\xa8\x7a\x27\x60\x2b\x81\xf7\x63\x86\xf1\x53\x5b"
"\xef\x14\x97\xf9\x21\x86\x08\x6e\x29\xc6\xbc\x5a\x1f\xad\x6e\xc9\xa3\x11"
"\x37\xab\xf9\xa4\x04\xab\xde\x77\x50\x89\x8b\x1b\xd6\x27\xe8\x73\xf8\x70"
"\x3b\xe8\x67\x2d\x70\xd1\xab\x57\x07\x52\x28\xa9\xf4\x6e\xd9\xbd\x1f\x08"
"\xfb\x81\x91\xbb\xab\x2d\xc5\x1d\xe3\xa6\x1f\x08\x68\xaf\xc4\x29\x48\x59"
"\x32\x3e\x6c\x25\x7a\x45\x31\x9f\x18\x10\x12\x88\xd1\x39\xbd\x3d\xa2\x0f"
"\xed\x05\xa8\xfe\x64\x68\x0b\x0a\x3f\xc2\x2d\xd7\x04\x00\x00\x00\x00\x94"
"\x69\x12\xd6\xc9\x8c\xd1\xa9\xfb\xe1\xe7\xd5\x8c\x08\xac\xaf\x30\x23\x5b"
"\x91\x8a\x31\xd2\xec\xa5\x5f\x74\xa2\x36\x41\xf6\x1f\x2d\x5b\x30\x8c\xf0"
"\xd0\x31\xb0\xc7\xf0\xce\xd6\x99\x93\xe9\x96\x0f\xf5\xf7\x60\x15\xe6\x00"
"\x95\x56\x23\x7b\xad\xf4\xe7\x96\x5b\xbe\x27\x77\xe8\x08\xfc\xba\x82\x1a"
"\xa8\xe8\xc5\xc3\x96\x09\xff\x85\x43\x52\xcb\x49\x00\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00\x00\x00\xc1\xfe\xe3\x0a\x3f\x7a\x85\xd1\xb2\x9e\x58"
"\xc7\x76\x85\xef\xc0\xce\xb1\xc8\xe5\x72\x9c\x66\x41\x8d\x16\x9f\xc0\x3a"
"\xa1\x88\x54\x6b\x3a\xd2\xa1\x82\x06\x8e\x1e\x3a\x0e\x25\x05\xbc\x7f\x41"
"\x01\x96\x45\x46\x6a\x53\xf1\xc9\x6e\x0d\x4b\x3b\xc1\x9f\xaa\x54\x49\x20"
"\x9b\x08\x3d\xbd\x33\x4b\x47\xf0\x67\xbb\xab\x40\x74\x3b\x2a\x42\x01\x00"
"\x82\x00\x8d\xf7\x5c\xf4\x3f\x8e\xcc\x8d\x37\x26\x60\x21\x11\xb4\x0e\x76"
"\x1f\xd2\x10\x81\x92\x03\x82\xf1\x4d\x12\xca\x3c\x34\x31\xee\x97\x47\x1c"
"\x78\x68\xdc\xda\x7e\xaa\x69\xeb\x7f\x7f\x80\x57\x2f\xdd\x11\xbb\x1d\x0d"
"\x12\x80\xfb\xc2\x2b\xf7\x34\x68\x78\x8d\xf5\x17\x10\xd7\xd3\x1c\x63\x2f"
"\xc5\xed\x17\x62\xeb\x0b\x42\x8e\xe7\x51\xc4\x7d\x8e\x89\x4f\x74\x5a\x86"
"\x84\x04\xa0\xbf\x35\xf0\x12\x10\x08\xb7\x22\xb1\xea\xa6\xae\xdf\xa1\xbf"
"\x2e\x7c\xcb\x2d\x61\xd5\xd7\x63\x31\x94\x5e\xce\xfa\x26\xb8\x47\x1d\x42"
"\x64\x52\x88\xd7\x22\x6b\xbd\x9c\xcd\x62\x8a\xb8\x48\x75\xf2\xc5\x0b\xa8"
"\x91\xce\xa5\x92\xb0\x43\x0a\x53\x7a\x39\x5d\xc7\x3b\xda\x36\x7b\xf1\x2c"
"\xb7\xd8\x16\x91\xa5\xfe\x8c\x47\xbe\x39\x56\x56\xa2\x97\xe9\xdf\x0e\x71"
"\xf9\x67\x56\xea\x5c\xce\x7d\xaa\xc4\xbe\x29\x01\x59\xf6\xbc\xd7\x5f\x0d"
"\xda\x9d\xe5\x53\x2e\x71\xae\x9e\x48\xb0\xed\x02\x54\xa8\x31\x00\x00\x00"
"\x00\xf6\xfb\xb8\x69\x60\x4d\x51\xa3\x6a\x54\xc8\x32\xe4\x5b\x25\x69\xdc"
"\x0d\x90\xb0\x75\x22\x5f\xde\x44\xc4\xe0\x97\x31\x71\xad\x47\xd6\xb0\xfd"
"\xf9\x74\x3a\xf9\x32\xcd\x6d\xb4\x9a\x47\x61\x38\x08\xba\xd9\x59\x71\x03"
"\x00\x00\x00\x00\x00\x00\x00\x83\x2d\x0a\x45\xfa\x42\x42\xe2\x4c\x7e\x80"
"\x00\x03\xc9\xe8\x09\x5e\x02\x98\x5f\x28\xe6\x78\xf6\x64\x22\x43\x6f\x94"
"\x9e\x2a\xb8\xf1\x62\xd7\xe3\xf8\x55\xe3\x78\xf4\xa1\xf4\x0b\x0c\x6f\xb2"
"\xd4\xb2\x05\xa8\x00\xb6\xd7\x13\xac\xeb\xc5\xb0\x14\xe6\x1a\x54\x3a\x5a"
"\x19\x4f\x9a\xc1\x8d\x76\xb5\x44\x0e\x3b\x1a\x56\x9e\x73\x97\xf6\xca\xfa"
"\x86\x96\x6d\x7b\xa1\x9e\x72\x04\x13\x26\x7a\x6c\xce\xa9\xc4\x39\x67\x1d"
"\x2c\x68\x0f\x27\x53\xca\x18\x4e\xee\xb8\x43\x45\x03\x68\xac\xb4\x38\x3a"
"\x01\xd2\x5e\xb3\xd1\xe2\x3e\x0f\x26\x45\xd1\xcd\xfa\x9f\xa4\x10\x63\x2f"
"\x95\xa5\xf6\x22\xf8\x51\xc6\x6e\xe7\xe3\x03\x93\xcd\x57\x4d\x67\xff\x2a"
"\x49\xc4\xf9\x3c\x09\x84\xb5\xc2\xd4\x52\x34\x97\xe4\xd6\x4f\x95\xf0\x84"
"\x93\x56\x4a\x1d\xf8\x71\x11\xc9\xbf\x31\x94\xfe\xf9\x7d\xce\xcc\x46\x7a"
"\xce\x45\xfe\xeb\x68\x5c\x58\x70\xd0\x5f\x88\xa0\xf4\x63\xdb\x88\xd3\x77"
"\x44\x2e\x13\x49\xac\xaf\x76\x62\x18\xb5\x4a\x9d\x62\x47\x78\xe1\xc4\xe0"
"\x64\xc9\x8e\x49\x41\x98\x27\x6e\xb2\xdf\x77\x66\x41\x1b\xef\x0e\xbb\x50"
"\x00\x00\x00\x00\x00\x60\x65\xd6\x35\xb0\xb7\xa0\x0e\xe7\x67\x22\x1d\x8a"
"\xf9\x75\x33\x87\xe0\xcd\x8d\x71\x8f\x54\xa2\x9d\xf6\xeb\xa3\xbd\x4c\x44"
"\x0e\x6e\x21\x72\xe3\xfc\xc0\x1b\x8b\xab\xb7\x57\xb5\xc5\x92\x17\xb8\x0d"
"\x0d\xb3\xba\x58\x28\x14\xa6\x04\xe4\xef\x7a\x80\x3e\x9c\xa7\xc8\x5b\x35"
"\xc9\xb9\x3a\x9e\x08\x85\xe2\x38\xb4\x4a\xe1\xc2\xe6\x4c\xce\x3b\x00\x00"
"\x00\x00\x46\x82\x9e\x64\x05\x60\x00\x30\x2b\xff\xff\x15\x40\x5b\xd5\xf2"
"\xeb\xa2\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
"\x00\x00\x9a\x98\x23\xfd\x8f\xbc\x5a\xa1\x65\x09\x9c\x5e\xd0\x32\xb4\x8e"
"\xa1\x2d\x8e\x05\x88\xdc\x52\x70\x2e\x40\x84\x91\x3a\x06\xd4\x68\xd0\x92"
"\x8b\xad\x76\xd6\x97\xe1\xf8\x5a\xb0\x30\xe7\x88\xd3\x87\x88\xee\x5b\x54"
"\x28\xd4\xa9\x71\xcc\x97\xdb\x9f\xd2\x31\x08\x8e\x57\x07\x35\xce\x12\x9e"
"\x7e\x77\xfc\x27\x77\x69\x26\x64\xa1\x48\x8f\xd8\xd6\xdf\xf4\xda\xd6\x18"
"\xfd\x54\xf5\x29\xd4\x55\x5c\x65\x07\x00\x9e\xe6\x9d\xd1\xbc\x55\x25\x87"
"\x89\xb2\x40\x52\x13\x7e\x96\x37\xf3\xef\xba\xb7\x17\x20\xf8\x8c\x3c\x44"
"\xb3\xb7\x48\x6f\x97\x9e\x8a\x31\x74\xb5\x31\xf5\x73\xfe\x0e\x52\x39\xc0"
"\x00\xbe\x27\x33\xc4\x95\x46\xf6\xe8\xa9\x17\x5e\xc6\xf1\x4d\xbf\x72\xed"
"\xc9\x16\x43\xb2\xfd\x99\xc2\x9e\xca\x4f\x8b\xc2\xe6\x0d\x5e\x5b\x87\x95"
"\xfa\xe1\x6a\x7c\x3e\xa5\x7e\x72\x8e\xca\x35\xea\xf0\x15\x5a\x39\xf9\x75"
"\x80\xe0\x79\x17\x54\x26\xc0\x88\xa0\x20\x80\x40\x98\x2a\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x51\xce\xaa\xf0\x15\x9f\xe6\x1f\x2e"
"\xad\xe7\x60\x3d\x0a\x7a\x56\xfb\x09\xcd\x11\x9a\xc0\x6a\xdb\x65\x97\x15"
"\x5a\xe4\x78\x46\x89\x2b\xb4\x23\xc0\x24\xd8\xcb\xe9\x24\x0b\x71\xec\x6d"
"\xc2\x12\x4d\x3a\x19\xe2\xd7\x14\xb2\x73\xd9\x5d\x1d\x3a\xa7\x37\xcb\x04"
"\xa3\x36\x15\xff\x2a\x73\x0e\x51\x06\x7d\x5d\x67\x5d\x01\x04\x36\x1c\x37"
"\xc6\x1a\x43\xb5\xaf\xd8\x65\xb6\x0d\x4c\xae\x89\x1b\x73\x22\x0f\x17\xd2"
"\x59\x79\xa7\xf7\x68\x34\x99\x5e\x53\xa9\x3a\x1c\x7b\x9e\xef\x26\x7d\xf6"
"\x91\xca\x98\x3a\x0b\x15\xbd\xa7\xf6\xc5\xc1\xca\x7a\xa5\x02\x61\xa3\x08"
"\x9a\x1e\xbf\x07\x34\xc9\xb0\x7e\x89\x51\xff\x02\x32\x63\xad\x5a\xed\x8c"
"\xfb\x49\xb4\x9e\x12\x8c\x69\x77\x24\xc0\x57\xd2\x2c\x5d\xf5\xae\xf2\x7c"
"\xe3\xdb\x11\x83\xb0\x43\xef\x2f\x79\xd5\xad\x55\x27\xd1\x49\xd0\x76\xe1"
"\xa8\x7e\x2d\xf2\x7c\x0c\xb8\xa6\x7a\xd7\x26\xbf\x95\x3e\x88\xf1\x04\x47"
"\xe1\x25\xc2\xc0\xf1\xae\xbe\xe1\xf3\x39\x0a\x9e\x3d\xda\xd4\xe2\xa6\xe0"
"\xf6\xe4\x56\x9f\xde\xfa\x19\xe8\x70\xe0\x4a\xcf\x94\x93\xb9\x63\xf9\x8e"
"\x23\xcf\xc6\x65\xe4\xf4\x65\xfa\x3f\x80\x1e\x19\x57\xc3\x99\xe4\x5f\x61"
"\xd3\x45\x9b\x1c\x60\x62\x04\x36\x8b\xb9\x31\x34\x5a\xf2\x82\x3c\x48\x7d"
"\x2f\xd9\x9d\xb6\xea\x6e\x00\x8e\x7f\xfa\x06\xca\x86\x15\x51\x18\x9d\x15"
"\x5b\xd0\x77\xa7\x9f\xe2\xc7\xe9\x61\x35\x2e\x56\x82\x4f\x72\x7d\x21\xd4"
"\x1e\xae\x78\xbf\xec\x4a\x2d\x7a\x7e\xdb\xc8\xef\x95\x8c\x5e\xa5\x99\xf7"
"\xc2\x5b\xf7\x1c\x23\x40\x55\x8a\xa1\x2f\xdd\x24\xa8\x8a\xaa\xd5\x92\x1a"
"\xee\x7d\xae\x6a\x2f\x30\x09\xd9\xcb\x43\xab\x48\x98\xd0\xf0\xaa\x56\x54"
"\x31\xb6\xab\xe5\x85\xd7\x5d\xb0\x4d\x1c\x9b\xa0\xb9\xde\x4a\xe8\xb0\xd3"
"\x13\x2b\xc6\x81\x0c\xc9\xa6\x93\x97\x9f\x55\x17\x4a\x72\xe1\xdf\x9f\xde"
"\xf3\x5b\xc4\x70\xf9\xe6\xe5\x91\x98\x27\x57\xf4\x5c\x52\xc6\x45\xd8\x91"
"\xbf\x63\xbb\x21\xfb\x66\x92\x6e\xbe\x1a\x85\x25\x61\x1f\xc3\xe8\xbb\x87"
"\x95\xc3\x6d\xc2\xa8\x6b\x5a\xb4\x6f\xf3\x3c\xc7\x4f\x61\x75\x1b\x2d\xae"
"\x92\x67\x6d\xb8\x5c\x8d\x0c\x72\x1b\x7e\xa4\x54\x4b\xf5\x1c\x95\xc8\x6f"
"\xca\xc1\xf4\x34\xd0\x9d\x1e\xe4\x92\x8a\xaf\xe2\x3d\xe6\x6f\xed\x97\x2e"
"\x0d\xdd\xfb\x33\xf6\x4e\x64\x70\x1b\x04\x92\x39\xe7\xf5\x52\xd8\x16\x44"
"\x1d\x11\xc4\xc2\x64\x7c\x01\x44\x62\x34\x43\x59\x19\x8d\x97\xc4\xb6\xe9"
"\xed\x31\xca\x18\x98\x7b\x64\xde\x07\x9b\x2b\xed\x64\x1e\x8a\x92\xf1\x3c"
"\xa7\x08\x44\xc6\x5c\xb4\x23\xd0\x19\x50\xb0\xeb\xf4\x4b\xd2\x8e\x09\xc0"
"\x5d\x9a\xe5\xdd\x68\x9f\xb8\x80\xfb\x18\xd0\x42\x21\x9f\x5a\xc6\x0c\x3a"
"\x03\xb0\x85\xab\xf3\xe8\xe3\xef\xc8\x42\xa8\xd3\x28\x73\x34\x61\xf0\x4c"
"\x99\x60\x70\x61\xc6\x5e\xd1\x4c\x61\x32\x2a\x5a\xc2\xd3\x71\xa9\x5b\x8a"
"\xd8\x67\xec\x92\xd1\x3a\x4f\xaa\x05\x20\x71\x66\xb1\x9a\x87\x58\xd8\x85"
"\x54\x00\xd8\xc6\xa7\x24\x2d\xc2\x07\x25\x1e\x87\x97\xec\xa2\x4e\xa4\xf4"
"\x87\x66\x3e\x60\xf2\xf5\xe1\xf1\x42\x49\x58\xfd\x14\x8f\x84\x68\x30\xe8"
"\x8a\x42\xd9\x3e\x1f\xe9\xc0\xb4\xa4\xa2\x68\x92\x17\x38\x04\x00\xa9\xf3"
"\xcb\x38\x11\xac\x87\xc5\x4c\x8e\xbc\x8b\xcf\xb4\x61\x3c\xc3\xa9\x97\xff"
"\x15\x79\xed\xbd\x4a\xde\x80\x20\xe3\xad\x00\x1b\x07\x2b\x1a\x75\x1b\x58"
"\x8a\xc4\x63\x9f\x35\xa5\x8e\x00\xa5\x0c\x02\x70\x60\x8c\x7a\x7f\x10\x13"
"\x2b\x1c\x25\xb9\xea\x81\x23\x2f\xbe\xf6\x65\xf6\x21\x2f\x87\x5b\x2a\x00"
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x20\xbd\x79\xe4\x1c"
"\x68\x21\x39\xc5\x8a\xc1\xde\xb0\x39\xa6\x91\xad\x64\x0e\x12\xc1\x2f\xe1"
"\x1d\x70\xfe\x49\x59\x06\xf2\xd5\xd7\x17\x78\xac\xbd\x4e\xee\x53\xa3\x99"
"\x6c\xb0\xde\x84\xbd\x2b\x05\xbe\x60\xc0\xf9\x6a\x53\xea\x44\xe0\xb2\x93"
"\x86\x5a\xa6\x8d\xf4\x94\xf8\x7d\xb9\x76\xe3\x6a\xd6\xc0\x69\x12\x24\x4d"
"\x4c\x88\x3c\x4a\xaa\x60\xb4\xa1\x39\x2c\xe0\xb2\xf2\xc5\x19\x66\x3b\x46"
"\x52\xff\x87\x1e\x0f\x6d\xff\xf9\xf7\xd3\x4e\xcf\x04\xbe\x0a\x58\xc3\xd5"
"\x31\x74\xb6\x7d\x18\x86\xe3\x4b\x81\xad\x8c\x60\xda\x56\xac\xc6\x47\x39"
"\xc3\xac\xab\x24\xaa\x8d\x0a\xc9\x2d\x46\x50\x74\xf9\x15\x60\x8b\x1b\x60"
"\xa9\x48\xba\xd4\x01\xb1\xa7\xfb\x36\x27\xbb\xe6\xc4\x51\x23\xed\x44\xbf"
"\xdf\x8c\xc1\x43\xbd\x1b\x7a\x66\x3d\xc3\xd0\x47\x6b\x8e\x39\xbe\xcf\xfc"
"\x42\x9e\x41\xf6\x6b\x1e\x37\xae\x52\xaa\xca\xff\x0f\x1d\xc8\xea\x70\xb6"
"\x8c\x25\x07\x2e\x20\x58\x6b\x19\x12\x7d\x75\xfa\x71\x57\x7f\x26\x5c\x51"
"\x00\x00\x00\x00\x00\x00",
3840);
*(uint64_t*)0x20000990 = 0x20000100;
memcpy((void*)0x20000100, "GPL\000", 4);
*(uint32_t*)0x20000998 = 0;
*(uint32_t*)0x2000099c = 0;
*(uint64_t*)0x200009a0 = 0;
*(uint32_t*)0x200009a8 = 0;
*(uint32_t*)0x200009ac = 0;
memset((void*)0x200009b0, 0, 16);
*(uint32_t*)0x200009c0 = 0;
*(uint32_t*)0x200009c4 = 0;
*(uint32_t*)0x200009c8 = -1;
*(uint32_t*)0x200009cc = 8;
*(uint64_t*)0x200009d0 = 0x20000180;
*(uint32_t*)0x20000180 = 0;
*(uint32_t*)0x20000184 = 0;
*(uint32_t*)0x200009d8 = 8;
*(uint32_t*)0x200009dc = 0x10;
*(uint64_t*)0x200009e0 = 0x200001c0;
*(uint32_t*)0x200001c0 = 0;
*(uint32_t*)0x200001c4 = 0;
*(uint32_t*)0x200001c8 = 0;
*(uint32_t*)0x200001cc = 0;
*(uint32_t*)0x200009e8 = 0xd;
*(uint32_t*)0x200009ec = -1;
*(uint32_t*)0x200009f0 = -1;
*(uint32_t*)0x200009f4 = 0xfffffef8;
*(uint64_t*)0x200009f8 = 0;
*(uint64_t*)0x20000a00 = 0;
*(uint32_t*)0x20000a08 = 0x10;
*(uint32_t*)0x20000a0c = 0;
res = syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x20000980ul, /*size=*/0x49ul);
if (res != -1)
r[0] = res;
*(uint64_t*)0x20000140 = 0x20000040;
memcpy((void*)0x20000040, "kmem_cache_free\000", 16);
*(uint32_t*)0x20000148 = r[0];
syscall(__NR_bpf, /*cmd=*/0x11ul, /*arg=*/0x20000140ul, /*size=*/0x10ul);
*(uint32_t*)0x20000340 = 2;
*(uint32_t*)0x20000344 = 4;
*(uint32_t*)0x20000348 = 8;
*(uint32_t*)0x2000034c = 1;
*(uint32_t*)0x20000350 = 0x80;
*(uint32_t*)0x20000354 = -1;
*(uint32_t*)0x20000358 = 0;
memset((void*)0x2000035c, 0, 16);
*(uint32_t*)0x2000036c = 0;
*(uint32_t*)0x20000370 = -1;
*(uint32_t*)0x20000374 = 0;
*(uint32_t*)0x20000378 = 0;
*(uint32_t*)0x2000037c = 0;
*(uint64_t*)0x20000380 = 0;
res = syscall(__NR_bpf, /*cmd=*/0ul, /*arg=*/0x20000340ul, /*size=*/0x48ul);
if (res != -1)
r[1] = res;
*(uint32_t*)0x20000480 = r[1];
syscall(__NR_bpf, /*cmd=*/0x16ul, /*arg=*/0x20000480ul, /*size=*/4ul);
*(uint32_t*)0x200004c0 = 0x11;
*(uint32_t*)0x200004c4 = 0x18;
*(uint64_t*)0x200004c8 = 0x200001c0;
memcpy((void*)0x200001c0,
"\x18\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xb7"
"\x08\x00\x00\x00\x00\x00\x00\x7b\x8a\xf8\xff\x00\x00\x00\x00\xb7\x08"
"\x00\x00\x00\x00\x00\x00\x7b\x8a\xf0\xff\x00\x00\x00\x00\xbf\xa1\x00"
"\x00\x00\x00\x00\x00\x07\x01\x00\x00\xf8\xff\xff\xff\xbf\xa4\x00\x00"
"\x00\x00\x00\x00\x07\x04\x00\x00\xf0\xff\xff\xff\xb7\x02\x00\x00\x00"
"\x00\x00\x00\x18\x23\x00\x00",
92);
*(uint32_t*)0x2000021c = r[1];
memcpy(
(void*)0x20000220,
"\x00\x00\x00\x00\x00\x00\x00\x00\xb7\x05\x00\x00\x00\x00\x00\x00\x85\x00"
"\x00\x00\xa5\x00\x00\x00\x18\x01\x00\x00\x20\x20\x64\x05\x00\x00\x00\x00"
"\x00\x20\x20\x20\x7b\x1a\xf8\xff\x00\x00\x00\x00\xbf\xa1\x00\x00\x00\x00"
"\x00\x00\x07\x01\x00\x00\xf8\xff\xff\xff\xb7\x02\x00\x00\x08\x00\x00\x00"
"\xb7\x03\x00\x00\x00\x00\x00\x00\xa5\x00\x00\x00\x08\x00\x00\x00\x95",
89);
*(uint64_t*)0x200004d0 = 0x20000600;
memcpy((void*)0x20000600, "GPL\000", 4);
*(uint32_t*)0x200004d8 = 0;
*(uint32_t*)0x200004dc = 0;
*(uint64_t*)0x200004e0 = 0;
*(uint32_t*)0x200004e8 = 0;
*(uint32_t*)0x200004ec = 0;
memset((void*)0x200004f0, 0, 16);
*(uint32_t*)0x20000500 = 0;
*(uint32_t*)0x20000504 = 0;
*(uint32_t*)0x20000508 = 0;
*(uint32_t*)0x2000050c = 0;
*(uint64_t*)0x20000510 = 0;
*(uint32_t*)0x20000518 = 0;
*(uint32_t*)0x2000051c = 0;
*(uint64_t*)0x20000520 = 0;
*(uint32_t*)0x20000528 = 0;
*(uint32_t*)0x2000052c = 0;
*(uint32_t*)0x20000530 = 0;
*(uint32_t*)0x20000534 = 0;
*(uint64_t*)0x20000538 = 0;
*(uint64_t*)0x20000540 = 0;
*(uint32_t*)0x20000548 = 0;
*(uint32_t*)0x2000054c = 0;
res = syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x200004c0ul, /*size=*/0x90ul);
if (res != -1)
r[2] = res;
*(uint64_t*)0x200001c0 = 0x20000000;
memcpy((void*)0x20000000, "kfree\000", 6);
*(uint32_t*)0x200001c8 = r[2];
syscall(__NR_bpf, /*cmd=*/0x11ul, /*arg=*/0x200001c0ul, /*size=*/0x10ul);
}
int main(void)
{
syscall(__NR_mmap, /*addr=*/0x1ffff000ul, /*len=*/0x1000ul, /*prot=*/0ul,
/*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1,
/*offset=*/0ul);
syscall(__NR_mmap, /*addr=*/0x20000000ul, /*len=*/0x1000000ul,
/*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/ 7ul,
/*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1,
/*offset=*/0ul);
syscall(__NR_mmap, /*addr=*/0x21000000ul, /*len=*/0x1000ul, /*prot=*/0ul,
/*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1,
/*offset=*/0ul);
setup_cgroups();
setup_usb();
for (procid = 0; procid < 5; procid++) {
if (fork() == 0) {
use_temporary_dir();
do_sandbox_none();
}
}
sleep(1000000);
return 0;
}