// https://syzkaller.appspot.com/bug?id=5900419e7bde00448cb6fefd674ef2d5fd6e4406
// autogenerated by syzkaller (https://github.com/google/syzkaller)
#define _GNU_SOURCE
#include <arpa/inet.h>
#include <dirent.h>
#include <endian.h>
#include <errno.h>
#include <fcntl.h>
#include <net/if.h>
#include <net/if_arp.h>
#include <netinet/in.h>
#include <pthread.h>
#include <sched.h>
#include <setjmp.h>
#include <signal.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/mount.h>
#include <sys/prctl.h>
#include <sys/resource.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/uio.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>
#include <linux/capability.h>
#include <linux/futex.h>
#include <linux/genetlink.h>
#include <linux/if_addr.h>
#include <linux/if_ether.h>
#include <linux/if_link.h>
#include <linux/if_tun.h>
#include <linux/in6.h>
#include <linux/ip.h>
#include <linux/neighbour.h>
#include <linux/net.h>
#include <linux/netlink.h>
#include <linux/nl80211.h>
#include <linux/rfkill.h>
#include <linux/rtnetlink.h>
#include <linux/tcp.h>
#include <linux/usb/ch9.h>
#include <linux/veth.h>
static unsigned long long procid;
static __thread int clone_ongoing;
static __thread int skip_segv;
static __thread jmp_buf segv_env;
static void segv_handler(int sig, siginfo_t* info, void* ctx)
{
if (__atomic_load_n(&clone_ongoing, __ATOMIC_RELAXED) != 0) {
exit(sig);
}
uintptr_t addr = (uintptr_t)info->si_addr;
const uintptr_t prog_start = 1 << 20;
const uintptr_t prog_end = 100 << 20;
int skip = __atomic_load_n(&skip_segv, __ATOMIC_RELAXED) != 0;
int valid = addr < prog_start || addr > prog_end;
if (skip && valid) {
_longjmp(segv_env, 1);
}
exit(sig);
}
static void install_segv_handler(void)
{
struct sigaction sa;
memset(&sa, 0, sizeof(sa));
sa.sa_handler = SIG_IGN;
syscall(SYS_rt_sigaction, 0x20, &sa, NULL, 8);
syscall(SYS_rt_sigaction, 0x21, &sa, NULL, 8);
memset(&sa, 0, sizeof(sa));
sa.sa_sigaction = segv_handler;
sa.sa_flags = SA_NODEFER | SA_SIGINFO;
sigaction(SIGSEGV, &sa, NULL);
sigaction(SIGBUS, &sa, NULL);
}
#define NONFAILING(...) \
({ \
int ok = 1; \
__atomic_fetch_add(&skip_segv, 1, __ATOMIC_SEQ_CST); \
if (_setjmp(segv_env) == 0) { \
__VA_ARGS__; \
} else \
ok = 0; \
__atomic_fetch_sub(&skip_segv, 1, __ATOMIC_SEQ_CST); \
ok; \
})
static void sleep_ms(uint64_t ms)
{
usleep(ms * 1000);
}
static uint64_t current_time_ms(void)
{
struct timespec ts;
if (clock_gettime(CLOCK_MONOTONIC, &ts))
exit(1);
return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000;
}
static void thread_start(void* (*fn)(void*), void* arg)
{
pthread_t th;
pthread_attr_t attr;
pthread_attr_init(&attr);
pthread_attr_setstacksize(&attr, 128 << 10);
int i = 0;
for (; i < 100; i++) {
if (pthread_create(&th, &attr, fn, arg) == 0) {
pthread_attr_destroy(&attr);
return;
}
if (errno == EAGAIN) {
usleep(50);
continue;
}
break;
}
exit(1);
}
typedef struct {
int state;
} event_t;
static void event_init(event_t* ev)
{
ev->state = 0;
}
static void event_reset(event_t* ev)
{
ev->state = 0;
}
static void event_set(event_t* ev)
{
if (ev->state)
exit(1);
__atomic_store_n(&ev->state, 1, __ATOMIC_RELEASE);
syscall(SYS_futex, &ev->state, FUTEX_WAKE | FUTEX_PRIVATE_FLAG, 1000000);
}
static void event_wait(event_t* ev)
{
while (!__atomic_load_n(&ev->state, __ATOMIC_ACQUIRE))
syscall(SYS_futex, &ev->state, FUTEX_WAIT | FUTEX_PRIVATE_FLAG, 0, 0);
}
static int event_isset(event_t* ev)
{
return __atomic_load_n(&ev->state, __ATOMIC_ACQUIRE);
}
static int event_timedwait(event_t* ev, uint64_t timeout)
{
uint64_t start = current_time_ms();
uint64_t now = start;
for (;;) {
uint64_t remain = timeout - (now - start);
struct timespec ts;
ts.tv_sec = remain / 1000;
ts.tv_nsec = (remain % 1000) * 1000 * 1000;
syscall(SYS_futex, &ev->state, FUTEX_WAIT | FUTEX_PRIVATE_FLAG, 0, &ts);
if (__atomic_load_n(&ev->state, __ATOMIC_ACQUIRE))
return 1;
now = current_time_ms();
if (now - start > timeout)
return 0;
}
}
static bool write_file(const char* file, const char* what, ...)
{
char buf[1024];
va_list args;
va_start(args, what);
vsnprintf(buf, sizeof(buf), what, args);
va_end(args);
buf[sizeof(buf) - 1] = 0;
int len = strlen(buf);
int fd = open(file, O_WRONLY | O_CLOEXEC);
if (fd == -1)
return false;
if (write(fd, buf, len) != len) {
int err = errno;
close(fd);
errno = err;
return false;
}
close(fd);
return true;
}
struct nlmsg {
char* pos;
int nesting;
struct nlattr* nested[8];
char buf[4096];
};
static void netlink_init(struct nlmsg* nlmsg, int typ, int flags,
const void* data, int size)
{
memset(nlmsg, 0, sizeof(*nlmsg));
struct nlmsghdr* hdr = (struct nlmsghdr*)nlmsg->buf;
hdr->nlmsg_type = typ;
hdr->nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK | flags;
memcpy(hdr + 1, data, size);
nlmsg->pos = (char*)(hdr + 1) + NLMSG_ALIGN(size);
}
static void netlink_attr(struct nlmsg* nlmsg, int typ, const void* data,
int size)
{
struct nlattr* attr = (struct nlattr*)nlmsg->pos;
attr->nla_len = sizeof(*attr) + size;
attr->nla_type = typ;
if (size > 0)
memcpy(attr + 1, data, size);
nlmsg->pos += NLMSG_ALIGN(attr->nla_len);
}
static void netlink_nest(struct nlmsg* nlmsg, int typ)
{
struct nlattr* attr = (struct nlattr*)nlmsg->pos;
attr->nla_type = typ;
nlmsg->pos += sizeof(*attr);
nlmsg->nested[nlmsg->nesting++] = attr;
}
static void netlink_done(struct nlmsg* nlmsg)
{
struct nlattr* attr = nlmsg->nested[--nlmsg->nesting];
attr->nla_len = nlmsg->pos - (char*)attr;
}
static int netlink_send_ext(struct nlmsg* nlmsg, int sock, uint16_t reply_type,
int* reply_len, bool dofail)
{
if (nlmsg->pos > nlmsg->buf + sizeof(nlmsg->buf) || nlmsg->nesting)
exit(1);
struct nlmsghdr* hdr = (struct nlmsghdr*)nlmsg->buf;
hdr->nlmsg_len = nlmsg->pos - nlmsg->buf;
struct sockaddr_nl addr;
memset(&addr, 0, sizeof(addr));
addr.nl_family = AF_NETLINK;
ssize_t n = sendto(sock, nlmsg->buf, hdr->nlmsg_len, 0,
(struct sockaddr*)&addr, sizeof(addr));
if (n != (ssize_t)hdr->nlmsg_len) {
if (dofail)
exit(1);
return -1;
}
n = recv(sock, nlmsg->buf, sizeof(nlmsg->buf), 0);
if (reply_len)
*reply_len = 0;
if (n < 0) {
if (dofail)
exit(1);
return -1;
}
if (n < (ssize_t)sizeof(struct nlmsghdr)) {
errno = EINVAL;
if (dofail)
exit(1);
return -1;
}
if (hdr->nlmsg_type == NLMSG_DONE)
return 0;
if (reply_len && hdr->nlmsg_type == reply_type) {
*reply_len = n;
return 0;
}
if (n < (ssize_t)(sizeof(struct nlmsghdr) + sizeof(struct nlmsgerr))) {
errno = EINVAL;
if (dofail)
exit(1);
return -1;
}
if (hdr->nlmsg_type != NLMSG_ERROR) {
errno = EINVAL;
if (dofail)
exit(1);
return -1;
}
errno = -((struct nlmsgerr*)(hdr + 1))->error;
return -errno;
}
static int netlink_send(struct nlmsg* nlmsg, int sock)
{
return netlink_send_ext(nlmsg, sock, 0, NULL, true);
}
static int netlink_query_family_id(struct nlmsg* nlmsg, int sock,
const char* family_name, bool dofail)
{
struct genlmsghdr genlhdr;
memset(&genlhdr, 0, sizeof(genlhdr));
genlhdr.cmd = CTRL_CMD_GETFAMILY;
netlink_init(nlmsg, GENL_ID_CTRL, 0, &genlhdr, sizeof(genlhdr));
netlink_attr(nlmsg, CTRL_ATTR_FAMILY_NAME, family_name,
strnlen(family_name, GENL_NAMSIZ - 1) + 1);
int n = 0;
int err = netlink_send_ext(nlmsg, sock, GENL_ID_CTRL, &n, dofail);
if (err < 0) {
return -1;
}
uint16_t id = 0;
struct nlattr* attr = (struct nlattr*)(nlmsg->buf + NLMSG_HDRLEN +
NLMSG_ALIGN(sizeof(genlhdr)));
for (; (char*)attr < nlmsg->buf + n;
attr = (struct nlattr*)((char*)attr + NLMSG_ALIGN(attr->nla_len))) {
if (attr->nla_type == CTRL_ATTR_FAMILY_ID) {
id = *(uint16_t*)(attr + 1);
break;
}
}
if (!id) {
errno = EINVAL;
return -1;
}
recv(sock, nlmsg->buf, sizeof(nlmsg->buf), 0);
return id;
}
static int netlink_next_msg(struct nlmsg* nlmsg, unsigned int offset,
unsigned int total_len)
{
struct nlmsghdr* hdr = (struct nlmsghdr*)(nlmsg->buf + offset);
if (offset == total_len || offset + hdr->nlmsg_len > total_len)
return -1;
return hdr->nlmsg_len;
}
static void netlink_add_device_impl(struct nlmsg* nlmsg, const char* type,
const char* name, bool up)
{
struct ifinfomsg hdr;
memset(&hdr, 0, sizeof(hdr));
if (up)
hdr.ifi_flags = hdr.ifi_change = IFF_UP;
netlink_init(nlmsg, RTM_NEWLINK, NLM_F_EXCL | NLM_F_CREATE, &hdr,
sizeof(hdr));
if (name)
netlink_attr(nlmsg, IFLA_IFNAME, name, strlen(name));
netlink_nest(nlmsg, IFLA_LINKINFO);
netlink_attr(nlmsg, IFLA_INFO_KIND, type, strlen(type));
}
static void netlink_add_device(struct nlmsg* nlmsg, int sock, const char* type,
const char* name)
{
netlink_add_device_impl(nlmsg, type, name, false);
netlink_done(nlmsg);
int err = netlink_send(nlmsg, sock);
if (err < 0) {
}
}
static void netlink_add_veth(struct nlmsg* nlmsg, int sock, const char* name,
const char* peer)
{
netlink_add_device_impl(nlmsg, "veth", name, false);
netlink_nest(nlmsg, IFLA_INFO_DATA);
netlink_nest(nlmsg, VETH_INFO_PEER);
nlmsg->pos += sizeof(struct ifinfomsg);
netlink_attr(nlmsg, IFLA_IFNAME, peer, strlen(peer));
netlink_done(nlmsg);
netlink_done(nlmsg);
netlink_done(nlmsg);
int err = netlink_send(nlmsg, sock);
if (err < 0) {
}
}
static void netlink_add_xfrm(struct nlmsg* nlmsg, int sock, const char* name)
{
netlink_add_device_impl(nlmsg, "xfrm", name, true);
netlink_nest(nlmsg, IFLA_INFO_DATA);
int if_id = 1;
netlink_attr(nlmsg, 2, &if_id, sizeof(if_id));
netlink_done(nlmsg);
netlink_done(nlmsg);
int err = netlink_send(nlmsg, sock);
if (err < 0) {
}
}
static void netlink_add_hsr(struct nlmsg* nlmsg, int sock, const char* name,
const char* slave1, const char* slave2)
{
netlink_add_device_impl(nlmsg, "hsr", name, false);
netlink_nest(nlmsg, IFLA_INFO_DATA);
int ifindex1 = if_nametoindex(slave1);
netlink_attr(nlmsg, IFLA_HSR_SLAVE1, &ifindex1, sizeof(ifindex1));
int ifindex2 = if_nametoindex(slave2);
netlink_attr(nlmsg, IFLA_HSR_SLAVE2, &ifindex2, sizeof(ifindex2));
netlink_done(nlmsg);
netlink_done(nlmsg);
int err = netlink_send(nlmsg, sock);
if (err < 0) {
}
}
static void netlink_add_linked(struct nlmsg* nlmsg, int sock, const char* type,
const char* name, const char* link)
{
netlink_add_device_impl(nlmsg, type, name, false);
netlink_done(nlmsg);
int ifindex = if_nametoindex(link);
netlink_attr(nlmsg, IFLA_LINK, &ifindex, sizeof(ifindex));
int err = netlink_send(nlmsg, sock);
if (err < 0) {
}
}
static void netlink_add_vlan(struct nlmsg* nlmsg, int sock, const char* name,
const char* link, uint16_t id, uint16_t proto)
{
netlink_add_device_impl(nlmsg, "vlan", name, false);
netlink_nest(nlmsg, IFLA_INFO_DATA);
netlink_attr(nlmsg, IFLA_VLAN_ID, &id, sizeof(id));
netlink_attr(nlmsg, IFLA_VLAN_PROTOCOL, &proto, sizeof(proto));
netlink_done(nlmsg);
netlink_done(nlmsg);
int ifindex = if_nametoindex(link);
netlink_attr(nlmsg, IFLA_LINK, &ifindex, sizeof(ifindex));
int err = netlink_send(nlmsg, sock);
if (err < 0) {
}
}
static void netlink_add_macvlan(struct nlmsg* nlmsg, int sock, const char* name,
const char* link)
{
netlink_add_device_impl(nlmsg, "macvlan", name, false);
netlink_nest(nlmsg, IFLA_INFO_DATA);
uint32_t mode = MACVLAN_MODE_BRIDGE;
netlink_attr(nlmsg, IFLA_MACVLAN_MODE, &mode, sizeof(mode));
netlink_done(nlmsg);
netlink_done(nlmsg);
int ifindex = if_nametoindex(link);
netlink_attr(nlmsg, IFLA_LINK, &ifindex, sizeof(ifindex));
int err = netlink_send(nlmsg, sock);
if (err < 0) {
}
}
static void netlink_add_geneve(struct nlmsg* nlmsg, int sock, const char* name,
uint32_t vni, struct in_addr* addr4,
struct in6_addr* addr6)
{
netlink_add_device_impl(nlmsg, "geneve", name, false);
netlink_nest(nlmsg, IFLA_INFO_DATA);
netlink_attr(nlmsg, IFLA_GENEVE_ID, &vni, sizeof(vni));
if (addr4)
netlink_attr(nlmsg, IFLA_GENEVE_REMOTE, addr4, sizeof(*addr4));
if (addr6)
netlink_attr(nlmsg, IFLA_GENEVE_REMOTE6, addr6, sizeof(*addr6));
netlink_done(nlmsg);
netlink_done(nlmsg);
int err = netlink_send(nlmsg, sock);
if (err < 0) {
}
}
#define IFLA_IPVLAN_FLAGS 2
#define IPVLAN_MODE_L3S 2
#undef IPVLAN_F_VEPA
#define IPVLAN_F_VEPA 2
static void netlink_add_ipvlan(struct nlmsg* nlmsg, int sock, const char* name,
const char* link, uint16_t mode, uint16_t flags)
{
netlink_add_device_impl(nlmsg, "ipvlan", name, false);
netlink_nest(nlmsg, IFLA_INFO_DATA);
netlink_attr(nlmsg, IFLA_IPVLAN_MODE, &mode, sizeof(mode));
netlink_attr(nlmsg, IFLA_IPVLAN_FLAGS, &flags, sizeof(flags));
netlink_done(nlmsg);
netlink_done(nlmsg);
int ifindex = if_nametoindex(link);
netlink_attr(nlmsg, IFLA_LINK, &ifindex, sizeof(ifindex));
int err = netlink_send(nlmsg, sock);
if (err < 0) {
}
}
static void netlink_device_change(struct nlmsg* nlmsg, int sock,
const char* name, bool up, const char* master,
const void* mac, int macsize,
const char* new_name)
{
struct ifinfomsg hdr;
memset(&hdr, 0, sizeof(hdr));
if (up)
hdr.ifi_flags = hdr.ifi_change = IFF_UP;
hdr.ifi_index = if_nametoindex(name);
netlink_init(nlmsg, RTM_NEWLINK, 0, &hdr, sizeof(hdr));
if (new_name)
netlink_attr(nlmsg, IFLA_IFNAME, new_name, strlen(new_name));
if (master) {
int ifindex = if_nametoindex(master);
netlink_attr(nlmsg, IFLA_MASTER, &ifindex, sizeof(ifindex));
}
if (macsize)
netlink_attr(nlmsg, IFLA_ADDRESS, mac, macsize);
int err = netlink_send(nlmsg, sock);
if (err < 0) {
}
}
static int netlink_add_addr(struct nlmsg* nlmsg, int sock, const char* dev,
const void* addr, int addrsize)
{
struct ifaddrmsg hdr;
memset(&hdr, 0, sizeof(hdr));
hdr.ifa_family = addrsize == 4 ? AF_INET : AF_INET6;
hdr.ifa_prefixlen = addrsize == 4 ? 24 : 120;
hdr.ifa_scope = RT_SCOPE_UNIVERSE;
hdr.ifa_index = if_nametoindex(dev);
netlink_init(nlmsg, RTM_NEWADDR, NLM_F_CREATE | NLM_F_REPLACE, &hdr,
sizeof(hdr));
netlink_attr(nlmsg, IFA_LOCAL, addr, addrsize);
netlink_attr(nlmsg, IFA_ADDRESS, addr, addrsize);
return netlink_send(nlmsg, sock);
}
static void netlink_add_addr4(struct nlmsg* nlmsg, int sock, const char* dev,
const char* addr)
{
struct in_addr in_addr;
inet_pton(AF_INET, addr, &in_addr);
int err = netlink_add_addr(nlmsg, sock, dev, &in_addr, sizeof(in_addr));
if (err < 0) {
}
}
static void netlink_add_addr6(struct nlmsg* nlmsg, int sock, const char* dev,
const char* addr)
{
struct in6_addr in6_addr;
inet_pton(AF_INET6, addr, &in6_addr);
int err = netlink_add_addr(nlmsg, sock, dev, &in6_addr, sizeof(in6_addr));
if (err < 0) {
}
}
static struct nlmsg nlmsg;
#define DEVLINK_FAMILY_NAME "devlink"
#define DEVLINK_CMD_PORT_GET 5
#define DEVLINK_ATTR_BUS_NAME 1
#define DEVLINK_ATTR_DEV_NAME 2
#define DEVLINK_ATTR_NETDEV_NAME 7
static struct nlmsg nlmsg2;
static void initialize_devlink_ports(const char* bus_name, const char* dev_name,
const char* netdev_prefix)
{
struct genlmsghdr genlhdr;
int len, total_len, id, err, offset;
uint16_t netdev_index;
int sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC);
if (sock == -1)
exit(1);
int rtsock = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
if (rtsock == -1)
exit(1);
id = netlink_query_family_id(&nlmsg, sock, DEVLINK_FAMILY_NAME, true);
if (id == -1)
goto error;
memset(&genlhdr, 0, sizeof(genlhdr));
genlhdr.cmd = DEVLINK_CMD_PORT_GET;
netlink_init(&nlmsg, id, NLM_F_DUMP, &genlhdr, sizeof(genlhdr));
netlink_attr(&nlmsg, DEVLINK_ATTR_BUS_NAME, bus_name, strlen(bus_name) + 1);
netlink_attr(&nlmsg, DEVLINK_ATTR_DEV_NAME, dev_name, strlen(dev_name) + 1);
err = netlink_send_ext(&nlmsg, sock, id, &total_len, true);
if (err < 0) {
goto error;
}
offset = 0;
netdev_index = 0;
while ((len = netlink_next_msg(&nlmsg, offset, total_len)) != -1) {
struct nlattr* attr = (struct nlattr*)(nlmsg.buf + offset + NLMSG_HDRLEN +
NLMSG_ALIGN(sizeof(genlhdr)));
for (; (char*)attr < nlmsg.buf + offset + len;
attr = (struct nlattr*)((char*)attr + NLMSG_ALIGN(attr->nla_len))) {
if (attr->nla_type == DEVLINK_ATTR_NETDEV_NAME) {
char* port_name;
char netdev_name[IFNAMSIZ];
port_name = (char*)(attr + 1);
snprintf(netdev_name, sizeof(netdev_name), "%s%d", netdev_prefix,
netdev_index);
netlink_device_change(&nlmsg2, rtsock, port_name, true, 0, 0, 0,
netdev_name);
break;
}
}
offset += len;
netdev_index++;
}
error:
close(rtsock);
close(sock);
}
#define WIFI_INITIAL_DEVICE_COUNT 2
#define WIFI_MAC_BASE \
{ \
0x08, 0x02, 0x11, 0x00, 0x00, 0x00 \
}
#define WIFI_IBSS_BSSID \
{ \
0x50, 0x50, 0x50, 0x50, 0x50, 0x50 \
}
#define WIFI_IBSS_SSID \
{ \
0x10, 0x10, 0x10, 0x10, 0x10, 0x10 \
}
#define WIFI_DEFAULT_FREQUENCY 2412
#define WIFI_DEFAULT_SIGNAL 0
#define WIFI_DEFAULT_RX_RATE 1
#define HWSIM_CMD_REGISTER 1
#define HWSIM_CMD_FRAME 2
#define HWSIM_CMD_NEW_RADIO 4
#define HWSIM_ATTR_SUPPORT_P2P_DEVICE 14
#define HWSIM_ATTR_PERM_ADDR 22
#define IF_OPER_UP 6
struct join_ibss_props {
int wiphy_freq;
bool wiphy_freq_fixed;
uint8_t* mac;
uint8_t* ssid;
int ssid_len;
};
static int set_interface_state(const char* interface_name, int on)
{
struct ifreq ifr;
int sock = socket(AF_INET, SOCK_DGRAM, 0);
if (sock < 0) {
return -1;
}
memset(&ifr, 0, sizeof(ifr));
strcpy(ifr.ifr_name, interface_name);
int ret = ioctl(sock, SIOCGIFFLAGS, &ifr);
if (ret < 0) {
close(sock);
return -1;
}
if (on)
ifr.ifr_flags |= IFF_UP;
else
ifr.ifr_flags &= ~IFF_UP;
ret = ioctl(sock, SIOCSIFFLAGS, &ifr);
close(sock);
if (ret < 0) {
return -1;
}
return 0;
}
static int nl80211_set_interface(struct nlmsg* nlmsg, int sock,
int nl80211_family, uint32_t ifindex,
uint32_t iftype, bool dofail)
{
struct genlmsghdr genlhdr;
memset(&genlhdr, 0, sizeof(genlhdr));
genlhdr.cmd = NL80211_CMD_SET_INTERFACE;
netlink_init(nlmsg, nl80211_family, 0, &genlhdr, sizeof(genlhdr));
netlink_attr(nlmsg, NL80211_ATTR_IFINDEX, &ifindex, sizeof(ifindex));
netlink_attr(nlmsg, NL80211_ATTR_IFTYPE, &iftype, sizeof(iftype));
int err = netlink_send_ext(nlmsg, sock, 0, NULL, dofail);
if (err < 0) {
}
return err;
}
static int nl80211_join_ibss(struct nlmsg* nlmsg, int sock, int nl80211_family,
uint32_t ifindex, struct join_ibss_props* props,
bool dofail)
{
struct genlmsghdr genlhdr;
memset(&genlhdr, 0, sizeof(genlhdr));
genlhdr.cmd = NL80211_CMD_JOIN_IBSS;
netlink_init(nlmsg, nl80211_family, 0, &genlhdr, sizeof(genlhdr));
netlink_attr(nlmsg, NL80211_ATTR_IFINDEX, &ifindex, sizeof(ifindex));
netlink_attr(nlmsg, NL80211_ATTR_SSID, props->ssid, props->ssid_len);
netlink_attr(nlmsg, NL80211_ATTR_WIPHY_FREQ, &(props->wiphy_freq),
sizeof(props->wiphy_freq));
if (props->mac)
netlink_attr(nlmsg, NL80211_ATTR_MAC, props->mac, ETH_ALEN);
if (props->wiphy_freq_fixed)
netlink_attr(nlmsg, NL80211_ATTR_FREQ_FIXED, NULL, 0);
int err = netlink_send_ext(nlmsg, sock, 0, NULL, dofail);
if (err < 0) {
}
return err;
}
static int get_ifla_operstate(struct nlmsg* nlmsg, int ifindex, bool dofail)
{
struct ifinfomsg info;
memset(&info, 0, sizeof(info));
info.ifi_family = AF_UNSPEC;
info.ifi_index = ifindex;
int sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
if (sock == -1) {
return -1;
}
netlink_init(nlmsg, RTM_GETLINK, 0, &info, sizeof(info));
int n;
int err = netlink_send_ext(nlmsg, sock, RTM_NEWLINK, &n, dofail);
close(sock);
if (err) {
return -1;
}
struct rtattr* attr = IFLA_RTA(NLMSG_DATA(nlmsg->buf));
for (; RTA_OK(attr, n); attr = RTA_NEXT(attr, n)) {
if (attr->rta_type == IFLA_OPERSTATE)
return *((int32_t*)RTA_DATA(attr));
}
return -1;
}
static int await_ifla_operstate(struct nlmsg* nlmsg, char* interface,
int operstate, bool dofail)
{
int ifindex = if_nametoindex(interface);
while (true) {
usleep(1000);
int ret = get_ifla_operstate(nlmsg, ifindex, dofail);
if (ret < 0)
return ret;
if (ret == operstate)
return 0;
}
return 0;
}
static int nl80211_setup_ibss_interface(struct nlmsg* nlmsg, int sock,
int nl80211_family_id, char* interface,
struct join_ibss_props* ibss_props,
bool dofail)
{
int ifindex = if_nametoindex(interface);
if (ifindex == 0) {
return -1;
}
int ret = nl80211_set_interface(nlmsg, sock, nl80211_family_id, ifindex,
NL80211_IFTYPE_ADHOC, dofail);
if (ret < 0) {
return -1;
}
ret = set_interface_state(interface, 1);
if (ret < 0) {
return -1;
}
ret = nl80211_join_ibss(nlmsg, sock, nl80211_family_id, ifindex, ibss_props,
dofail);
if (ret < 0) {
return -1;
}
return 0;
}
static int hwsim80211_create_device(struct nlmsg* nlmsg, int sock,
int hwsim_family,
uint8_t mac_addr[ETH_ALEN])
{
struct genlmsghdr genlhdr;
memset(&genlhdr, 0, sizeof(genlhdr));
genlhdr.cmd = HWSIM_CMD_NEW_RADIO;
netlink_init(nlmsg, hwsim_family, 0, &genlhdr, sizeof(genlhdr));
netlink_attr(nlmsg, HWSIM_ATTR_SUPPORT_P2P_DEVICE, NULL, 0);
netlink_attr(nlmsg, HWSIM_ATTR_PERM_ADDR, mac_addr, ETH_ALEN);
int err = netlink_send(nlmsg, sock);
if (err < 0) {
}
return err;
}
static void initialize_wifi_devices(void)
{
int rfkill = open("/dev/rfkill", O_RDWR);
if (rfkill == -1)
exit(1);
struct rfkill_event event = {0};
event.type = RFKILL_TYPE_ALL;
event.op = RFKILL_OP_CHANGE_ALL;
if (write(rfkill, &event, sizeof(event)) != (ssize_t)(sizeof(event)))
exit(1);
close(rfkill);
uint8_t mac_addr[6] = WIFI_MAC_BASE;
int sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC);
if (sock < 0)
exit(1);
int hwsim_family_id =
netlink_query_family_id(&nlmsg, sock, "MAC80211_HWSIM", true);
int nl80211_family_id =
netlink_query_family_id(&nlmsg, sock, "nl80211", true);
uint8_t ssid[] = WIFI_IBSS_SSID;
uint8_t bssid[] = WIFI_IBSS_BSSID;
struct join_ibss_props ibss_props = {.wiphy_freq = WIFI_DEFAULT_FREQUENCY,
.wiphy_freq_fixed = true,
.mac = bssid,
.ssid = ssid,
.ssid_len = sizeof(ssid)};
for (int device_id = 0; device_id < WIFI_INITIAL_DEVICE_COUNT; device_id++) {
mac_addr[5] = device_id;
int ret = hwsim80211_create_device(&nlmsg, sock, hwsim_family_id, mac_addr);
if (ret < 0)
exit(1);
char interface[6] = "wlan0";
interface[4] += device_id;
if (nl80211_setup_ibss_interface(&nlmsg, sock, nl80211_family_id, interface,
&ibss_props, true) < 0)
exit(1);
}
for (int device_id = 0; device_id < WIFI_INITIAL_DEVICE_COUNT; device_id++) {
char interface[6] = "wlan0";
interface[4] += device_id;
int ret = await_ifla_operstate(&nlmsg, interface, IF_OPER_UP, true);
if (ret < 0)
exit(1);
}
close(sock);
}
#define DEV_IPV4 "172.20.20.%d"
#define DEV_IPV6 "fe80::%02x"
#define DEV_MAC 0x00aaaaaaaaaa
static void netdevsim_add(unsigned int addr, unsigned int port_count)
{
write_file("/sys/bus/netdevsim/del_device", "%u", addr);
if (write_file("/sys/bus/netdevsim/new_device", "%u %u", addr, port_count)) {
char buf[32];
snprintf(buf, sizeof(buf), "netdevsim%d", addr);
initialize_devlink_ports("netdevsim", buf, "netdevsim");
}
}
#define WG_GENL_NAME "wireguard"
enum wg_cmd {
WG_CMD_GET_DEVICE,
WG_CMD_SET_DEVICE,
};
enum wgdevice_attribute {
WGDEVICE_A_UNSPEC,
WGDEVICE_A_IFINDEX,
WGDEVICE_A_IFNAME,
WGDEVICE_A_PRIVATE_KEY,
WGDEVICE_A_PUBLIC_KEY,
WGDEVICE_A_FLAGS,
WGDEVICE_A_LISTEN_PORT,
WGDEVICE_A_FWMARK,
WGDEVICE_A_PEERS,
};
enum wgpeer_attribute {
WGPEER_A_UNSPEC,
WGPEER_A_PUBLIC_KEY,
WGPEER_A_PRESHARED_KEY,
WGPEER_A_FLAGS,
WGPEER_A_ENDPOINT,
WGPEER_A_PERSISTENT_KEEPALIVE_INTERVAL,
WGPEER_A_LAST_HANDSHAKE_TIME,
WGPEER_A_RX_BYTES,
WGPEER_A_TX_BYTES,
WGPEER_A_ALLOWEDIPS,
WGPEER_A_PROTOCOL_VERSION,
};
enum wgallowedip_attribute {
WGALLOWEDIP_A_UNSPEC,
WGALLOWEDIP_A_FAMILY,
WGALLOWEDIP_A_IPADDR,
WGALLOWEDIP_A_CIDR_MASK,
};
static void netlink_wireguard_setup(void)
{
const char ifname_a[] = "wg0";
const char ifname_b[] = "wg1";
const char ifname_c[] = "wg2";
const char private_a[] =
"\xa0\x5c\xa8\x4f\x6c\x9c\x8e\x38\x53\xe2\xfd\x7a\x70\xae\x0f\xb2\x0f\xa1"
"\x52\x60\x0c\xb0\x08\x45\x17\x4f\x08\x07\x6f\x8d\x78\x43";
const char private_b[] =
"\xb0\x80\x73\xe8\xd4\x4e\x91\xe3\xda\x92\x2c\x22\x43\x82\x44\xbb\x88\x5c"
"\x69\xe2\x69\xc8\xe9\xd8\x35\xb1\x14\x29\x3a\x4d\xdc\x6e";
const char private_c[] =
"\xa0\xcb\x87\x9a\x47\xf5\xbc\x64\x4c\x0e\x69\x3f\xa6\xd0\x31\xc7\x4a\x15"
"\x53\xb6\xe9\x01\xb9\xff\x2f\x51\x8c\x78\x04\x2f\xb5\x42";
const char public_a[] =
"\x97\x5c\x9d\x81\xc9\x83\xc8\x20\x9e\xe7\x81\x25\x4b\x89\x9f\x8e\xd9\x25"
"\xae\x9f\x09\x23\xc2\x3c\x62\xf5\x3c\x57\xcd\xbf\x69\x1c";
const char public_b[] =
"\xd1\x73\x28\x99\xf6\x11\xcd\x89\x94\x03\x4d\x7f\x41\x3d\xc9\x57\x63\x0e"
"\x54\x93\xc2\x85\xac\xa4\x00\x65\xcb\x63\x11\xbe\x69\x6b";
const char public_c[] =
"\xf4\x4d\xa3\x67\xa8\x8e\xe6\x56\x4f\x02\x02\x11\x45\x67\x27\x08\x2f\x5c"
"\xeb\xee\x8b\x1b\xf5\xeb\x73\x37\x34\x1b\x45\x9b\x39\x22";
const uint16_t listen_a = 20001;
const uint16_t listen_b = 20002;
const uint16_t listen_c = 20003;
const uint16_t af_inet = AF_INET;
const uint16_t af_inet6 = AF_INET6;
const struct sockaddr_in endpoint_b_v4 = {
.sin_family = AF_INET,
.sin_port = htons(listen_b),
.sin_addr = {htonl(INADDR_LOOPBACK)}};
const struct sockaddr_in endpoint_c_v4 = {
.sin_family = AF_INET,
.sin_port = htons(listen_c),
.sin_addr = {htonl(INADDR_LOOPBACK)}};
struct sockaddr_in6 endpoint_a_v6 = {.sin6_family = AF_INET6,
.sin6_port = htons(listen_a)};
endpoint_a_v6.sin6_addr = in6addr_loopback;
struct sockaddr_in6 endpoint_c_v6 = {.sin6_family = AF_INET6,
.sin6_port = htons(listen_c)};
endpoint_c_v6.sin6_addr = in6addr_loopback;
const struct in_addr first_half_v4 = {0};
const struct in_addr second_half_v4 = {(uint32_t)htonl(128 << 24)};
const struct in6_addr first_half_v6 = {{{0}}};
const struct in6_addr second_half_v6 = {{{0x80}}};
const uint8_t half_cidr = 1;
const uint16_t persistent_keepalives[] = {1, 3, 7, 9, 14, 19};
struct genlmsghdr genlhdr = {.cmd = WG_CMD_SET_DEVICE, .version = 1};
int sock;
int id, err;
sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC);
if (sock == -1) {
return;
}
id = netlink_query_family_id(&nlmsg, sock, WG_GENL_NAME, true);
if (id == -1)
goto error;
netlink_init(&nlmsg, id, 0, &genlhdr, sizeof(genlhdr));
netlink_attr(&nlmsg, WGDEVICE_A_IFNAME, ifname_a, strlen(ifname_a) + 1);
netlink_attr(&nlmsg, WGDEVICE_A_PRIVATE_KEY, private_a, 32);
netlink_attr(&nlmsg, WGDEVICE_A_LISTEN_PORT, &listen_a, 2);
netlink_nest(&nlmsg, NLA_F_NESTED | WGDEVICE_A_PEERS);
netlink_nest(&nlmsg, NLA_F_NESTED | 0);
netlink_attr(&nlmsg, WGPEER_A_PUBLIC_KEY, public_b, 32);
netlink_attr(&nlmsg, WGPEER_A_ENDPOINT, &endpoint_b_v4,
sizeof(endpoint_b_v4));
netlink_attr(&nlmsg, WGPEER_A_PERSISTENT_KEEPALIVE_INTERVAL,
&persistent_keepalives[0], 2);
netlink_nest(&nlmsg, NLA_F_NESTED | WGPEER_A_ALLOWEDIPS);
netlink_nest(&nlmsg, NLA_F_NESTED | 0);
netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet, 2);
netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &first_half_v4,
sizeof(first_half_v4));
netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
netlink_done(&nlmsg);
netlink_nest(&nlmsg, NLA_F_NESTED | 0);
netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet6, 2);
netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &first_half_v6,
sizeof(first_half_v6));
netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
netlink_done(&nlmsg);
netlink_done(&nlmsg);
netlink_done(&nlmsg);
netlink_nest(&nlmsg, NLA_F_NESTED | 0);
netlink_attr(&nlmsg, WGPEER_A_PUBLIC_KEY, public_c, 32);
netlink_attr(&nlmsg, WGPEER_A_ENDPOINT, &endpoint_c_v6,
sizeof(endpoint_c_v6));
netlink_attr(&nlmsg, WGPEER_A_PERSISTENT_KEEPALIVE_INTERVAL,
&persistent_keepalives[1], 2);
netlink_nest(&nlmsg, NLA_F_NESTED | WGPEER_A_ALLOWEDIPS);
netlink_nest(&nlmsg, NLA_F_NESTED | 0);
netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet, 2);
netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &second_half_v4,
sizeof(second_half_v4));
netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
netlink_done(&nlmsg);
netlink_nest(&nlmsg, NLA_F_NESTED | 0);
netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet6, 2);
netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &second_half_v6,
sizeof(second_half_v6));
netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
netlink_done(&nlmsg);
netlink_done(&nlmsg);
netlink_done(&nlmsg);
netlink_done(&nlmsg);
err = netlink_send(&nlmsg, sock);
if (err < 0) {
}
netlink_init(&nlmsg, id, 0, &genlhdr, sizeof(genlhdr));
netlink_attr(&nlmsg, WGDEVICE_A_IFNAME, ifname_b, strlen(ifname_b) + 1);
netlink_attr(&nlmsg, WGDEVICE_A_PRIVATE_KEY, private_b, 32);
netlink_attr(&nlmsg, WGDEVICE_A_LISTEN_PORT, &listen_b, 2);
netlink_nest(&nlmsg, NLA_F_NESTED | WGDEVICE_A_PEERS);
netlink_nest(&nlmsg, NLA_F_NESTED | 0);
netlink_attr(&nlmsg, WGPEER_A_PUBLIC_KEY, public_a, 32);
netlink_attr(&nlmsg, WGPEER_A_ENDPOINT, &endpoint_a_v6,
sizeof(endpoint_a_v6));
netlink_attr(&nlmsg, WGPEER_A_PERSISTENT_KEEPALIVE_INTERVAL,
&persistent_keepalives[2], 2);
netlink_nest(&nlmsg, NLA_F_NESTED | WGPEER_A_ALLOWEDIPS);
netlink_nest(&nlmsg, NLA_F_NESTED | 0);
netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet, 2);
netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &first_half_v4,
sizeof(first_half_v4));
netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
netlink_done(&nlmsg);
netlink_nest(&nlmsg, NLA_F_NESTED | 0);
netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet6, 2);
netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &first_half_v6,
sizeof(first_half_v6));
netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
netlink_done(&nlmsg);
netlink_done(&nlmsg);
netlink_done(&nlmsg);
netlink_nest(&nlmsg, NLA_F_NESTED | 0);
netlink_attr(&nlmsg, WGPEER_A_PUBLIC_KEY, public_c, 32);
netlink_attr(&nlmsg, WGPEER_A_ENDPOINT, &endpoint_c_v4,
sizeof(endpoint_c_v4));
netlink_attr(&nlmsg, WGPEER_A_PERSISTENT_KEEPALIVE_INTERVAL,
&persistent_keepalives[3], 2);
netlink_nest(&nlmsg, NLA_F_NESTED | WGPEER_A_ALLOWEDIPS);
netlink_nest(&nlmsg, NLA_F_NESTED | 0);
netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet, 2);
netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &second_half_v4,
sizeof(second_half_v4));
netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
netlink_done(&nlmsg);
netlink_nest(&nlmsg, NLA_F_NESTED | 0);
netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet6, 2);
netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &second_half_v6,
sizeof(second_half_v6));
netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
netlink_done(&nlmsg);
netlink_done(&nlmsg);
netlink_done(&nlmsg);
netlink_done(&nlmsg);
err = netlink_send(&nlmsg, sock);
if (err < 0) {
}
netlink_init(&nlmsg, id, 0, &genlhdr, sizeof(genlhdr));
netlink_attr(&nlmsg, WGDEVICE_A_IFNAME, ifname_c, strlen(ifname_c) + 1);
netlink_attr(&nlmsg, WGDEVICE_A_PRIVATE_KEY, private_c, 32);
netlink_attr(&nlmsg, WGDEVICE_A_LISTEN_PORT, &listen_c, 2);
netlink_nest(&nlmsg, NLA_F_NESTED | WGDEVICE_A_PEERS);
netlink_nest(&nlmsg, NLA_F_NESTED | 0);
netlink_attr(&nlmsg, WGPEER_A_PUBLIC_KEY, public_a, 32);
netlink_attr(&nlmsg, WGPEER_A_ENDPOINT, &endpoint_a_v6,
sizeof(endpoint_a_v6));
netlink_attr(&nlmsg, WGPEER_A_PERSISTENT_KEEPALIVE_INTERVAL,
&persistent_keepalives[4], 2);
netlink_nest(&nlmsg, NLA_F_NESTED | WGPEER_A_ALLOWEDIPS);
netlink_nest(&nlmsg, NLA_F_NESTED | 0);
netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet, 2);
netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &first_half_v4,
sizeof(first_half_v4));
netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
netlink_done(&nlmsg);
netlink_nest(&nlmsg, NLA_F_NESTED | 0);
netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet6, 2);
netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &first_half_v6,
sizeof(first_half_v6));
netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
netlink_done(&nlmsg);
netlink_done(&nlmsg);
netlink_done(&nlmsg);
netlink_nest(&nlmsg, NLA_F_NESTED | 0);
netlink_attr(&nlmsg, WGPEER_A_PUBLIC_KEY, public_b, 32);
netlink_attr(&nlmsg, WGPEER_A_ENDPOINT, &endpoint_b_v4,
sizeof(endpoint_b_v4));
netlink_attr(&nlmsg, WGPEER_A_PERSISTENT_KEEPALIVE_INTERVAL,
&persistent_keepalives[5], 2);
netlink_nest(&nlmsg, NLA_F_NESTED | WGPEER_A_ALLOWEDIPS);
netlink_nest(&nlmsg, NLA_F_NESTED | 0);
netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet, 2);
netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &second_half_v4,
sizeof(second_half_v4));
netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
netlink_done(&nlmsg);
netlink_nest(&nlmsg, NLA_F_NESTED | 0);
netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet6, 2);
netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &second_half_v6,
sizeof(second_half_v6));
netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
netlink_done(&nlmsg);
netlink_done(&nlmsg);
netlink_done(&nlmsg);
netlink_done(&nlmsg);
err = netlink_send(&nlmsg, sock);
if (err < 0) {
}
error:
close(sock);
}
static void initialize_netdevices(void)
{
char netdevsim[16];
sprintf(netdevsim, "netdevsim%d", (int)procid);
struct {
const char* type;
const char* dev;
} devtypes[] = {
{"ip6gretap", "ip6gretap0"}, {"bridge", "bridge0"}, {"vcan", "vcan0"},
{"bond", "bond0"}, {"team", "team0"}, {"dummy", "dummy0"},
{"nlmon", "nlmon0"}, {"caif", "caif0"}, {"batadv", "batadv0"},
{"vxcan", "vxcan1"}, {"veth", 0}, {"wireguard", "wg0"},
{"wireguard", "wg1"}, {"wireguard", "wg2"},
};
const char* devmasters[] = {"bridge", "bond", "team", "batadv"};
struct {
const char* name;
int macsize;
bool noipv6;
} devices[] = {
{"lo", ETH_ALEN},
{"sit0", 0},
{"bridge0", ETH_ALEN},
{"vcan0", 0, true},
{"tunl0", 0},
{"gre0", 0},
{"gretap0", ETH_ALEN},
{"ip_vti0", 0},
{"ip6_vti0", 0},
{"ip6tnl0", 0},
{"ip6gre0", 0},
{"ip6gretap0", ETH_ALEN},
{"erspan0", ETH_ALEN},
{"bond0", ETH_ALEN},
{"veth0", ETH_ALEN},
{"veth1", ETH_ALEN},
{"team0", ETH_ALEN},
{"veth0_to_bridge", ETH_ALEN},
{"veth1_to_bridge", ETH_ALEN},
{"veth0_to_bond", ETH_ALEN},
{"veth1_to_bond", ETH_ALEN},
{"veth0_to_team", ETH_ALEN},
{"veth1_to_team", ETH_ALEN},
{"veth0_to_hsr", ETH_ALEN},
{"veth1_to_hsr", ETH_ALEN},
{"hsr0", 0},
{"dummy0", ETH_ALEN},
{"nlmon0", 0},
{"vxcan0", 0, true},
{"vxcan1", 0, true},
{"caif0", ETH_ALEN},
{"batadv0", ETH_ALEN},
{netdevsim, ETH_ALEN},
{"xfrm0", ETH_ALEN},
{"veth0_virt_wifi", ETH_ALEN},
{"veth1_virt_wifi", ETH_ALEN},
{"virt_wifi0", ETH_ALEN},
{"veth0_vlan", ETH_ALEN},
{"veth1_vlan", ETH_ALEN},
{"vlan0", ETH_ALEN},
{"vlan1", ETH_ALEN},
{"macvlan0", ETH_ALEN},
{"macvlan1", ETH_ALEN},
{"ipvlan0", ETH_ALEN},
{"ipvlan1", ETH_ALEN},
{"veth0_macvtap", ETH_ALEN},
{"veth1_macvtap", ETH_ALEN},
{"macvtap0", ETH_ALEN},
{"macsec0", ETH_ALEN},
{"veth0_to_batadv", ETH_ALEN},
{"veth1_to_batadv", ETH_ALEN},
{"batadv_slave_0", ETH_ALEN},
{"batadv_slave_1", ETH_ALEN},
{"geneve0", ETH_ALEN},
{"geneve1", ETH_ALEN},
{"wg0", 0},
{"wg1", 0},
{"wg2", 0},
};
int sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
if (sock == -1)
exit(1);
unsigned i;
for (i = 0; i < sizeof(devtypes) / sizeof(devtypes[0]); i++)
netlink_add_device(&nlmsg, sock, devtypes[i].type, devtypes[i].dev);
for (i = 0; i < sizeof(devmasters) / (sizeof(devmasters[0])); i++) {
char master[32], slave0[32], veth0[32], slave1[32], veth1[32];
sprintf(slave0, "%s_slave_0", devmasters[i]);
sprintf(veth0, "veth0_to_%s", devmasters[i]);
netlink_add_veth(&nlmsg, sock, slave0, veth0);
sprintf(slave1, "%s_slave_1", devmasters[i]);
sprintf(veth1, "veth1_to_%s", devmasters[i]);
netlink_add_veth(&nlmsg, sock, slave1, veth1);
sprintf(master, "%s0", devmasters[i]);
netlink_device_change(&nlmsg, sock, slave0, false, master, 0, 0, NULL);
netlink_device_change(&nlmsg, sock, slave1, false, master, 0, 0, NULL);
}
netlink_add_xfrm(&nlmsg, sock, "xfrm0");
netlink_device_change(&nlmsg, sock, "bridge_slave_0", true, 0, 0, 0, NULL);
netlink_device_change(&nlmsg, sock, "bridge_slave_1", true, 0, 0, 0, NULL);
netlink_add_veth(&nlmsg, sock, "hsr_slave_0", "veth0_to_hsr");
netlink_add_veth(&nlmsg, sock, "hsr_slave_1", "veth1_to_hsr");
netlink_add_hsr(&nlmsg, sock, "hsr0", "hsr_slave_0", "hsr_slave_1");
netlink_device_change(&nlmsg, sock, "hsr_slave_0", true, 0, 0, 0, NULL);
netlink_device_change(&nlmsg, sock, "hsr_slave_1", true, 0, 0, 0, NULL);
netlink_add_veth(&nlmsg, sock, "veth0_virt_wifi", "veth1_virt_wifi");
netlink_add_linked(&nlmsg, sock, "virt_wifi", "virt_wifi0",
"veth1_virt_wifi");
netlink_add_veth(&nlmsg, sock, "veth0_vlan", "veth1_vlan");
netlink_add_vlan(&nlmsg, sock, "vlan0", "veth0_vlan", 0, htons(ETH_P_8021Q));
netlink_add_vlan(&nlmsg, sock, "vlan1", "veth0_vlan", 1, htons(ETH_P_8021AD));
netlink_add_macvlan(&nlmsg, sock, "macvlan0", "veth1_vlan");
netlink_add_macvlan(&nlmsg, sock, "macvlan1", "veth1_vlan");
netlink_add_ipvlan(&nlmsg, sock, "ipvlan0", "veth0_vlan", IPVLAN_MODE_L2, 0);
netlink_add_ipvlan(&nlmsg, sock, "ipvlan1", "veth0_vlan", IPVLAN_MODE_L3S,
IPVLAN_F_VEPA);
netlink_add_veth(&nlmsg, sock, "veth0_macvtap", "veth1_macvtap");
netlink_add_linked(&nlmsg, sock, "macvtap", "macvtap0", "veth0_macvtap");
netlink_add_linked(&nlmsg, sock, "macsec", "macsec0", "veth1_macvtap");
char addr[32];
sprintf(addr, DEV_IPV4, 14 + 10);
struct in_addr geneve_addr4;
if (inet_pton(AF_INET, addr, &geneve_addr4) <= 0)
exit(1);
struct in6_addr geneve_addr6;
if (inet_pton(AF_INET6, "fc00::01", &geneve_addr6) <= 0)
exit(1);
netlink_add_geneve(&nlmsg, sock, "geneve0", 0, &geneve_addr4, 0);
netlink_add_geneve(&nlmsg, sock, "geneve1", 1, 0, &geneve_addr6);
netdevsim_add((int)procid, 4);
netlink_wireguard_setup();
for (i = 0; i < sizeof(devices) / (sizeof(devices[0])); i++) {
char addr[32];
sprintf(addr, DEV_IPV4, i + 10);
netlink_add_addr4(&nlmsg, sock, devices[i].name, addr);
if (!devices[i].noipv6) {
sprintf(addr, DEV_IPV6, i + 10);
netlink_add_addr6(&nlmsg, sock, devices[i].name, addr);
}
uint64_t macaddr = DEV_MAC + ((i + 10ull) << 40);
netlink_device_change(&nlmsg, sock, devices[i].name, true, 0, &macaddr,
devices[i].macsize, NULL);
}
close(sock);
}
static void initialize_netdevices_init(void)
{
int sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
if (sock == -1)
exit(1);
struct {
const char* type;
int macsize;
bool noipv6;
bool noup;
} devtypes[] = {
{"nr", 7, true},
{"rose", 5, true, true},
};
unsigned i;
for (i = 0; i < sizeof(devtypes) / sizeof(devtypes[0]); i++) {
char dev[32], addr[32];
sprintf(dev, "%s%d", devtypes[i].type, (int)procid);
sprintf(addr, "172.30.%d.%d", i, (int)procid + 1);
netlink_add_addr4(&nlmsg, sock, dev, addr);
if (!devtypes[i].noipv6) {
sprintf(addr, "fe88::%02x:%02x", i, (int)procid + 1);
netlink_add_addr6(&nlmsg, sock, dev, addr);
}
int macsize = devtypes[i].macsize;
uint64_t macaddr = 0xbbbbbb +
((unsigned long long)i << (8 * (macsize - 2))) +
(procid << (8 * (macsize - 1)));
netlink_device_change(&nlmsg, sock, dev, !devtypes[i].noup, 0, &macaddr,
macsize, NULL);
}
close(sock);
}
#define MAX_FDS 30
#define USB_MAX_IFACE_NUM 4
#define USB_MAX_EP_NUM 32
#define USB_MAX_FDS 6
struct usb_endpoint_index {
struct usb_endpoint_descriptor desc;
int handle;
};
struct usb_iface_index {
struct usb_interface_descriptor* iface;
uint8_t bInterfaceNumber;
uint8_t bAlternateSetting;
uint8_t bInterfaceClass;
struct usb_endpoint_index eps[USB_MAX_EP_NUM];
int eps_num;
};
struct usb_device_index {
struct usb_device_descriptor* dev;
struct usb_config_descriptor* config;
uint8_t bDeviceClass;
uint8_t bMaxPower;
int config_length;
struct usb_iface_index ifaces[USB_MAX_IFACE_NUM];
int ifaces_num;
int iface_cur;
};
struct usb_info {
int fd;
struct usb_device_index index;
};
static struct usb_info usb_devices[USB_MAX_FDS];
static struct usb_device_index* lookup_usb_index(int fd)
{
for (int i = 0; i < USB_MAX_FDS; i++) {
if (__atomic_load_n(&usb_devices[i].fd, __ATOMIC_ACQUIRE) == fd)
return &usb_devices[i].index;
}
return NULL;
}
static int usb_devices_num;
static bool parse_usb_descriptor(const char* buffer, size_t length,
struct usb_device_index* index)
{
if (length < sizeof(*index->dev) + sizeof(*index->config))
return false;
memset(index, 0, sizeof(*index));
index->dev = (struct usb_device_descriptor*)buffer;
index->config = (struct usb_config_descriptor*)(buffer + sizeof(*index->dev));
index->bDeviceClass = index->dev->bDeviceClass;
index->bMaxPower = index->config->bMaxPower;
index->config_length = length - sizeof(*index->dev);
index->iface_cur = -1;
size_t offset = 0;
while (true) {
if (offset + 1 >= length)
break;
uint8_t desc_length = buffer[offset];
uint8_t desc_type = buffer[offset + 1];
if (desc_length <= 2)
break;
if (offset + desc_length > length)
break;
if (desc_type == USB_DT_INTERFACE &&
index->ifaces_num < USB_MAX_IFACE_NUM) {
struct usb_interface_descriptor* iface =
(struct usb_interface_descriptor*)(buffer + offset);
index->ifaces[index->ifaces_num].iface = iface;
index->ifaces[index->ifaces_num].bInterfaceNumber =
iface->bInterfaceNumber;
index->ifaces[index->ifaces_num].bAlternateSetting =
iface->bAlternateSetting;
index->ifaces[index->ifaces_num].bInterfaceClass = iface->bInterfaceClass;
index->ifaces_num++;
}
if (desc_type == USB_DT_ENDPOINT && index->ifaces_num > 0) {
struct usb_iface_index* iface = &index->ifaces[index->ifaces_num - 1];
if (iface->eps_num < USB_MAX_EP_NUM) {
memcpy(&iface->eps[iface->eps_num].desc, buffer + offset,
sizeof(iface->eps[iface->eps_num].desc));
iface->eps_num++;
}
}
offset += desc_length;
}
return true;
}
static struct usb_device_index* add_usb_index(int fd, const char* dev,
size_t dev_len)
{
int i = __atomic_fetch_add(&usb_devices_num, 1, __ATOMIC_RELAXED);
if (i >= USB_MAX_FDS)
return NULL;
if (!parse_usb_descriptor(dev, dev_len, &usb_devices[i].index))
return NULL;
__atomic_store_n(&usb_devices[i].fd, fd, __ATOMIC_RELEASE);
return &usb_devices[i].index;
}
struct vusb_connect_string_descriptor {
uint32_t len;
char* str;
} __attribute__((packed));
struct vusb_connect_descriptors {
uint32_t qual_len;
char* qual;
uint32_t bos_len;
char* bos;
uint32_t strs_len;
struct vusb_connect_string_descriptor strs[0];
} __attribute__((packed));
static const char default_string[] = {8, USB_DT_STRING, 's', 0, 'y', 0, 'z', 0};
static const char default_lang_id[] = {4, USB_DT_STRING, 0x09, 0x04};
static bool
lookup_connect_response_in(int fd, const struct vusb_connect_descriptors* descs,
const struct usb_ctrlrequest* ctrl,
struct usb_qualifier_descriptor* qual,
char** response_data, uint32_t* response_length)
{
struct usb_device_index* index = lookup_usb_index(fd);
uint8_t str_idx;
if (!index)
return false;
switch (ctrl->bRequestType & USB_TYPE_MASK) {
case USB_TYPE_STANDARD:
switch (ctrl->bRequest) {
case USB_REQ_GET_DESCRIPTOR:
switch (ctrl->wValue >> 8) {
case USB_DT_DEVICE:
*response_data = (char*)index->dev;
*response_length = sizeof(*index->dev);
return true;
case USB_DT_CONFIG:
*response_data = (char*)index->config;
*response_length = index->config_length;
return true;
case USB_DT_STRING:
str_idx = (uint8_t)ctrl->wValue;
if (descs && str_idx < descs->strs_len) {
*response_data = descs->strs[str_idx].str;
*response_length = descs->strs[str_idx].len;
return true;
}
if (str_idx == 0) {
*response_data = (char*)&default_lang_id[0];
*response_length = default_lang_id[0];
return true;
}
*response_data = (char*)&default_string[0];
*response_length = default_string[0];
return true;
case USB_DT_BOS:
*response_data = descs->bos;
*response_length = descs->bos_len;
return true;
case USB_DT_DEVICE_QUALIFIER:
if (!descs->qual) {
qual->bLength = sizeof(*qual);
qual->bDescriptorType = USB_DT_DEVICE_QUALIFIER;
qual->bcdUSB = index->dev->bcdUSB;
qual->bDeviceClass = index->dev->bDeviceClass;
qual->bDeviceSubClass = index->dev->bDeviceSubClass;
qual->bDeviceProtocol = index->dev->bDeviceProtocol;
qual->bMaxPacketSize0 = index->dev->bMaxPacketSize0;
qual->bNumConfigurations = index->dev->bNumConfigurations;
qual->bRESERVED = 0;
*response_data = (char*)qual;
*response_length = sizeof(*qual);
return true;
}
*response_data = descs->qual;
*response_length = descs->qual_len;
return true;
default:
break;
}
break;
default:
break;
}
break;
default:
break;
}
return false;
}
typedef bool (*lookup_connect_out_response_t)(
int fd, const struct vusb_connect_descriptors* descs,
const struct usb_ctrlrequest* ctrl, bool* done);
static bool lookup_connect_response_out_generic(
int fd, const struct vusb_connect_descriptors* descs,
const struct usb_ctrlrequest* ctrl, bool* done)
{
switch (ctrl->bRequestType & USB_TYPE_MASK) {
case USB_TYPE_STANDARD:
switch (ctrl->bRequest) {
case USB_REQ_SET_CONFIGURATION:
*done = true;
return true;
default:
break;
}
break;
}
return false;
}
#define UDC_NAME_LENGTH_MAX 128
struct usb_raw_init {
__u8 driver_name[UDC_NAME_LENGTH_MAX];
__u8 device_name[UDC_NAME_LENGTH_MAX];
__u8 speed;
};
enum usb_raw_event_type {
USB_RAW_EVENT_INVALID = 0,
USB_RAW_EVENT_CONNECT = 1,
USB_RAW_EVENT_CONTROL = 2,
};
struct usb_raw_event {
__u32 type;
__u32 length;
__u8 data[0];
};
struct usb_raw_ep_io {
__u16 ep;
__u16 flags;
__u32 length;
__u8 data[0];
};
#define USB_RAW_EPS_NUM_MAX 30
#define USB_RAW_EP_NAME_MAX 16
#define USB_RAW_EP_ADDR_ANY 0xff
struct usb_raw_ep_caps {
__u32 type_control : 1;
__u32 type_iso : 1;
__u32 type_bulk : 1;
__u32 type_int : 1;
__u32 dir_in : 1;
__u32 dir_out : 1;
};
struct usb_raw_ep_limits {
__u16 maxpacket_limit;
__u16 max_streams;
__u32 reserved;
};
struct usb_raw_ep_info {
__u8 name[USB_RAW_EP_NAME_MAX];
__u32 addr;
struct usb_raw_ep_caps caps;
struct usb_raw_ep_limits limits;
};
struct usb_raw_eps_info {
struct usb_raw_ep_info eps[USB_RAW_EPS_NUM_MAX];
};
#define USB_RAW_IOCTL_INIT _IOW('U', 0, struct usb_raw_init)
#define USB_RAW_IOCTL_RUN _IO('U', 1)
#define USB_RAW_IOCTL_EVENT_FETCH _IOR('U', 2, struct usb_raw_event)
#define USB_RAW_IOCTL_EP0_WRITE _IOW('U', 3, struct usb_raw_ep_io)
#define USB_RAW_IOCTL_EP0_READ _IOWR('U', 4, struct usb_raw_ep_io)
#define USB_RAW_IOCTL_EP_ENABLE _IOW('U', 5, struct usb_endpoint_descriptor)
#define USB_RAW_IOCTL_EP_DISABLE _IOW('U', 6, __u32)
#define USB_RAW_IOCTL_EP_WRITE _IOW('U', 7, struct usb_raw_ep_io)
#define USB_RAW_IOCTL_EP_READ _IOWR('U', 8, struct usb_raw_ep_io)
#define USB_RAW_IOCTL_CONFIGURE _IO('U', 9)
#define USB_RAW_IOCTL_VBUS_DRAW _IOW('U', 10, __u32)
#define USB_RAW_IOCTL_EPS_INFO _IOR('U', 11, struct usb_raw_eps_info)
#define USB_RAW_IOCTL_EP0_STALL _IO('U', 12)
#define USB_RAW_IOCTL_EP_SET_HALT _IOW('U', 13, __u32)
#define USB_RAW_IOCTL_EP_CLEAR_HALT _IOW('U', 14, __u32)
#define USB_RAW_IOCTL_EP_SET_WEDGE _IOW('U', 15, __u32)
static int usb_raw_open()
{
return open("/dev/raw-gadget", O_RDWR);
}
static int usb_raw_init(int fd, uint32_t speed, const char* driver,
const char* device)
{
struct usb_raw_init arg;
strncpy((char*)&arg.driver_name[0], driver, sizeof(arg.driver_name));
strncpy((char*)&arg.device_name[0], device, sizeof(arg.device_name));
arg.speed = speed;
return ioctl(fd, USB_RAW_IOCTL_INIT, &arg);
}
static int usb_raw_run(int fd)
{
return ioctl(fd, USB_RAW_IOCTL_RUN, 0);
}
static int usb_raw_configure(int fd)
{
return ioctl(fd, USB_RAW_IOCTL_CONFIGURE, 0);
}
static int usb_raw_vbus_draw(int fd, uint32_t power)
{
return ioctl(fd, USB_RAW_IOCTL_VBUS_DRAW, power);
}
static int usb_raw_ep0_write(int fd, struct usb_raw_ep_io* io)
{
return ioctl(fd, USB_RAW_IOCTL_EP0_WRITE, io);
}
static int usb_raw_ep0_read(int fd, struct usb_raw_ep_io* io)
{
return ioctl(fd, USB_RAW_IOCTL_EP0_READ, io);
}
static int usb_raw_event_fetch(int fd, struct usb_raw_event* event)
{
return ioctl(fd, USB_RAW_IOCTL_EVENT_FETCH, event);
}
static int usb_raw_ep_enable(int fd, struct usb_endpoint_descriptor* desc)
{
return ioctl(fd, USB_RAW_IOCTL_EP_ENABLE, desc);
}
static int usb_raw_ep_disable(int fd, int ep)
{
return ioctl(fd, USB_RAW_IOCTL_EP_DISABLE, ep);
}
static int usb_raw_ep0_stall(int fd)
{
return ioctl(fd, USB_RAW_IOCTL_EP0_STALL, 0);
}
#define USB_MAX_PACKET_SIZE 4096
struct usb_raw_control_event {
struct usb_raw_event inner;
struct usb_ctrlrequest ctrl;
char data[USB_MAX_PACKET_SIZE];
};
struct usb_raw_ep_io_data {
struct usb_raw_ep_io inner;
char data[USB_MAX_PACKET_SIZE];
};
static void set_interface(int fd, int n)
{
struct usb_device_index* index = lookup_usb_index(fd);
if (!index)
return;
if (index->iface_cur >= 0 && index->iface_cur < index->ifaces_num) {
for (int ep = 0; ep < index->ifaces[index->iface_cur].eps_num; ep++) {
int rv = usb_raw_ep_disable(
fd, index->ifaces[index->iface_cur].eps[ep].handle);
if (rv < 0) {
} else {
}
}
}
if (n >= 0 && n < index->ifaces_num) {
for (int ep = 0; ep < index->ifaces[n].eps_num; ep++) {
int rv = usb_raw_ep_enable(fd, &index->ifaces[n].eps[ep].desc);
if (rv < 0) {
} else {
index->ifaces[n].eps[ep].handle = rv;
}
}
index->iface_cur = n;
}
}
static int configure_device(int fd)
{
struct usb_device_index* index = lookup_usb_index(fd);
if (!index)
return -1;
int rv = usb_raw_vbus_draw(fd, index->bMaxPower);
if (rv < 0) {
return rv;
}
rv = usb_raw_configure(fd);
if (rv < 0) {
return rv;
}
set_interface(fd, 0);
return 0;
}
static volatile long
syz_usb_connect_impl(uint64_t speed, uint64_t dev_len, const char* dev,
const struct vusb_connect_descriptors* descs,
lookup_connect_out_response_t lookup_connect_response_out)
{
if (!dev) {
return -1;
}
int fd = usb_raw_open();
if (fd < 0) {
return fd;
}
if (fd >= MAX_FDS) {
close(fd);
return -1;
}
struct usb_device_index* index = add_usb_index(fd, dev, dev_len);
if (!index) {
return -1;
}
char device[32];
sprintf(&device[0], "dummy_udc.%llu", procid);
int rv = usb_raw_init(fd, speed, "dummy_udc", &device[0]);
if (rv < 0) {
return rv;
}
rv = usb_raw_run(fd);
if (rv < 0) {
return rv;
}
bool done = false;
while (!done) {
struct usb_raw_control_event event;
event.inner.type = 0;
event.inner.length = sizeof(event.ctrl);
rv = usb_raw_event_fetch(fd, (struct usb_raw_event*)&event);
if (rv < 0) {
return rv;
}
if (event.inner.type != USB_RAW_EVENT_CONTROL)
continue;
char* response_data = NULL;
uint32_t response_length = 0;
struct usb_qualifier_descriptor qual;
if (event.ctrl.bRequestType & USB_DIR_IN) {
if (!lookup_connect_response_in(fd, descs, &event.ctrl, &qual,
&response_data, &response_length)) {
usb_raw_ep0_stall(fd);
continue;
}
} else {
if (!lookup_connect_response_out(fd, descs, &event.ctrl, &done)) {
usb_raw_ep0_stall(fd);
continue;
}
response_data = NULL;
response_length = event.ctrl.wLength;
}
if ((event.ctrl.bRequestType & USB_TYPE_MASK) == USB_TYPE_STANDARD &&
event.ctrl.bRequest == USB_REQ_SET_CONFIGURATION) {
rv = configure_device(fd);
if (rv < 0) {
return rv;
}
}
struct usb_raw_ep_io_data response;
response.inner.ep = 0;
response.inner.flags = 0;
if (response_length > sizeof(response.data))
response_length = 0;
if (event.ctrl.wLength < response_length)
response_length = event.ctrl.wLength;
response.inner.length = response_length;
if (response_data)
memcpy(&response.data[0], response_data, response_length);
else
memset(&response.data[0], 0, response_length);
if (event.ctrl.bRequestType & USB_DIR_IN) {
rv = usb_raw_ep0_write(fd, (struct usb_raw_ep_io*)&response);
} else {
rv = usb_raw_ep0_read(fd, (struct usb_raw_ep_io*)&response);
}
if (rv < 0) {
return rv;
}
}
sleep_ms(200);
return fd;
}
static volatile long syz_usb_connect(volatile long a0, volatile long a1,
volatile long a2, volatile long a3)
{
uint64_t speed = a0;
uint64_t dev_len = a1;
const char* dev = (const char*)a2;
const struct vusb_connect_descriptors* descs =
(const struct vusb_connect_descriptors*)a3;
return syz_usb_connect_impl(speed, dev_len, dev, descs,
&lookup_connect_response_out_generic);
}
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_netdevices();
initialize_wifi_devices();
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");
}
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);
}
struct thread_t {
int created, call;
event_t ready, done;
};
static struct thread_t threads[16];
static void execute_call(int call);
static int running;
static void* thr(void* arg)
{
struct thread_t* th = (struct thread_t*)arg;
for (;;) {
event_wait(&th->ready);
event_reset(&th->ready);
execute_call(th->call);
__atomic_fetch_sub(&running, 1, __ATOMIC_RELAXED);
event_set(&th->done);
}
return 0;
}
static void execute_one(void)
{
if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
}
int i, call, thread;
for (call = 0; call < 2; call++) {
for (thread = 0; thread < (int)(sizeof(threads) / sizeof(threads[0]));
thread++) {
struct thread_t* th = &threads[thread];
if (!th->created) {
th->created = 1;
event_init(&th->ready);
event_init(&th->done);
event_set(&th->done);
thread_start(thr, th);
}
if (!event_isset(&th->done))
continue;
event_reset(&th->done);
th->call = call;
__atomic_fetch_add(&running, 1, __ATOMIC_RELAXED);
event_set(&th->ready);
event_timedwait(&th->done, 50 + (call == 1 ? 3000 : 0));
break;
}
}
for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++)
sleep_ms(1);
close_fds();
}
static void execute_one(void);
#define WAIT_FLAGS __WALL
static void loop(void)
{
int iter = 0;
for (;; iter++) {
int pid = fork();
if (pid < 0)
exit(1);
if (pid == 0) {
setup_test();
execute_one();
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;
}
}
}
void execute_call(int call)
{
switch (call) {
case 0:
NONFAILING(*(uint32_t*)0x20000000 = 0xfc);
NONFAILING(memcpy(
(void*)0x20000004,
"\xa2\xe3\xad\x21\xed\x0d\x1b\xf9\x1b\x29\x55\x09\x87\xf7\x0e\x06\xd0"
"\x38\xe7\xff\x7f\xc6\xe5\x53\x9b\x0d\x3d\x0e\x8b\x08\x9b\x3f\x3b\x09"
"\x6c\x06\x08\x90\xe0\x87\x8f\x0e\x1a\xc6\xe7\x04\x9b\x09\x6e\x95\x9b"
"\x44\x9a\x24\x0d\x5b\x67\xf3\x98\x8f\x7e\xf3\x19\x52\x01\x00\xff\xe8"
"\xd1\x78\x70\x8c\x52\x3c\x92\x1b\x1b\x5b\x31\x07\x0b\x07\x5d\x0d\x36"
"\xcd\x3b\x78\x13\x0d\xaa\x61\xd8\xe8\x04\x00\x00\x00\x58\x02\xb7\x7f"
"\x07\x22\x72\x27\xb7\xba\x67\xe0\xe7\x86\x57\xa6\xf5\xc2\xa8\x74\xe6"
"\x2a\x9c\xcd\xc0\xd3\x1a\x0c\x9f\x31\x8c\x0d\xa1\x99\x3b\xd1\x60\xe2"
"\x33\xdf\x4a\x62\x17\x9c\x6f\x30\xe0\x65\xcd\x5b\x91\xcd\x0a\xe1\x93"
"\x97\x37\x35\xb3\x6d\x5b\x1b\x63\xdd\x1c\x00\x30\x5d\x3f\x46\x63\x5e"
"\xb0\x16\xd5\xb1\xdd\xa9\x8e\x2d\x74\x9b\xe7\xbd\x1d\xf1\xfb\x3b\x23"
"\x1f\xdc\xdb\x50\x75\xa9\xaa\xa1\xb4\x69\xc3\x09\x00\x00\x00\x00\x00"
"\x00\x00\x75\x27\x1b\x28\x63\x29\xd1\x69\x93\x42\x88\xfd\x78\x9a\xa3"
"\x7d\x6e\x98\xb2\x24\xfd\x44\xb6\x5b\x31\x33\x4f\xfc\x55\xcc\x82\xcd"
"\x3a\xc3\x2e\xcd\xb0\x8c\xed\x6f\x90\x81\xb4\xdd\x0d\x8b\x38\xf3\xcd"
"\x44\x98\xbe\xe8\x00\x49\x08\x41\xbd\xb1\x14\xf6\xb7\x63\x83\x70\x9d"
"\x8f\x5c\x55\x43\x2a\x90\x9f\xda\x03\x9a\xec\x54\xa1\x23\x6e\x80\xf6"
"\xa8\xab\xad\xea\x76\x62\x49\x6b\xdd\xbb\x42\xbe\x6b\xfb\x2f\x17\x95"
"\x9d\x1f\x41\x6e\x56\xc7\x1b\x19\x31\x87\x02\x62\xf5\xe8\x01\x11\x92"
"\x42\xca\x02\x6b\xfc\x82\x1e\x7e\x7d\xaf\x24\x51\x13\x8e\x64\x5b\xb8"
"\x0c\x61\x76\x69\x31\x4e\x2f\xbe\x70\xde\x98\xec\x76\xa9\xe4\x0d\xad"
"\x47\xf3\x6f\xd9\xf7\xd0\xd4\x2a\x4b\x5f\x11\x85\xcc\xdc\xf1\x6f\xf4"
"\x62\x95\xd8\xa0\xfa\x17\x71\x3c\x58\x02\x63\x09\x33\xa9\xa3\x4a\xf6"
"\x74\xf3\xf3\x9f\xe2\x34\x91\x23\x7c\x08\x82\x2d\xec\x11\x09\x11\xe8"
"\x93\xd0\xa8\xc4\xf6\x77\x74\x7a\xbc\x36\x09\x34\xb8\x29\x10\xff\x85"
"\xbf\xd9\x95\x08\x3b\xba\x29\x87\xa6\x73\x99\xea\xc4\x27\xd1\x45\xd5"
"\x46\xa4\x0b\x9f\x6f\xf1\x4a\xc4\x88\xec\x13\x0f\x91\x85\x0a\x27\xaf"
"\x95\x44\xae\x15\xa7\xe4\x54\xde\xa0\x59\x18\xb4\x12\x43\x51\x3f\x00"
"\x00\x00\x00\x00\x00\x00\x0a\x36\x21\xc5\x6c\xea\x8d\x20\xfa\x91\x1a"
"\x0c\x41\xdb\x6e\xbe\x8c\xac\x64\xf1\x76\x79\x14\x1d\x54\xb3\x4b\xbc"
"\x99\x63\xac\x4f\x4b\xb3\x30\x96\x03\xf1\xd4\xab\x96\x62\x03\x86\x1b"
"\x5b\x15\xa8\x41\xf2\xb5\x75\xa8\xbd\x0d\x78\x24\x8e\xbe\x4d\x9a\x80"
"\x00\x26\x95\x10\x4f\x67\x4c\x24\x31\xdc\xa1\x41\xfa\xe2\x69\xca\xb7"
"\x0e\x9a\x66\xf3\xc3\xa9\xa6\x3e\x96\x39\xe1\xf5\x9c\x0e\xde\x26\xc6"
"\xb5\xd7\x4b\x07\x8a\x5e\x15\xc3\x16\x34\xe5\xae\x09\x8c\xe9\xee\x70"
"\x77\x1a\xaa\x18\x11\x9a\x86\x7e\x10\x88\x33\x49\x75\xe9\xf7\x34\x83"
"\xb6\xa6\x2f\xa6\x78\xca\x14\xff\xd9\xf9\xdb\x2a\x78\x69\xd8\x58\x64"
"\x05\x65\x26\xf8\x89\xaf\x43\xa6\x05\x60\x80\x57\x22\x86\x52\x24\x49"
"\xdf\x46\x6c\x63\x2b\x35\x70\x24\x3f\x98\x9c\xce\x7c\xd9\xf4\x65\xe4"
"\x1e\x61\x0c\x20\xd8\x04\x21\xd6\x53\xa5\x52\x00\x00\x00\x82\x13\xb7"
"\x04\xc7\xfb\x08\x2f\xf2\x75\x90\x67\x8e\xf9\xf1\x90\xba\xe9\x79\x09"
"\x50\x70\x41\xd8\x60\x42\x0c\x56\x64\xb2\x79\x21\xb1\x4d\xc1\xdb\x88"
"\x92\xfd\x32\xd0\xad\x7b\xc9\x46\x81\x35\x91\xad\x8d\xef\xf4\xb0\x5f"
"\x60\xce\xa0\xda\x77\x10\xac\x00\x00\x00\x00\x00\x00\x80\x00\xbe\xa3"
"\x7c\xe0\xd0\xd4\xaa\x20\x2f\x92\x8f\x28\x38\x1a\xab\x14\x4a\x5d\x42"
"\x9a\x04\xa6\xa2\xb8\x3c\x70\x68\xae\x94\x9e\xd0\x6e\x28\x8e\x81\x0b"
"\xac\x9c\x76\x60\x00\x25\xe1\x9c\x90\x7f\x8e\xa2\xe2\x01\x00\x00\x00"
"\x82\x71\xa1\xf5\xf8\x52\x8f\x22\x7e\x79\xc1\x38\x9d\xbd\xff\xfe\x49"
"\x2f\x21\x57\x9d\x2c\x15\xb8\xc7\x0c\xdb\x1c\x33\x2d\x86\xd8\x73\x41"
"\x43\x27\x50\x86\x1e\xc2\xbc\x34\x51\xed\xca\x19\x4b\x22\x1c\xfe\xc4"
"\x60\x3d\x27\x6b\xba\xa1\xdf\xa6\xd4\xfb\x8a\x48\xa7\x6e\xaf\xc9\xa9"
"\xa0\x27\x0e\x4c\x10\xd6\x4c\xd5\xa6\x24\x27\x26\x4f\x40\x77\xfe\x76"
"\x3c\x43\x47\x08\x33\xac\x96\xc4\x5f\x35\x7c\xbb\xab\xa8\xf1\xb1\xfd"
"\xcc\x7c\xbb\x61\xa7\xcd\xb9\x74\x4e\xd7\xf9\x12\x9a\xed\xe2\xbe\x21"
"\xcc\xfd\xc4\xe9\x13\x4f\x86\x84\xb3\xa4\xf3\x54\xda\x9a\x79\x5e\x96"
"\x33\x4e\x20\x7d\xff\x70\xf1\x98\x80\x37\xb2\xed\x3a\xaf\x57\x5c\x0b"
"\x88\xd8\xf1\x46\x68\x40\x78\x41\x6d\x59\xfd\xee\x53\x25\x92\x89\x74"
"\xd1\x2d\xad\x99\xda\xc4\x4c\x3f\x00\x08\x04\x70\x96\xa4\x40\x02\xbe"
"\xbc\x24\x20\xae\xd9\x2f\xa9\xb6\x57\x8b\x47\x79\x41\x5d\x4a\xc0\x1b"
"\x75\xd5\x49\x5c\x11\x80\x45\x65\x1c\xf4\x1c\x2f\xc4\x8b\x77\x8e\xfa"
"\x5e\xa5\x67\x77\x47\x43\x0a\xf4\x16\x2b\x98\x7b\x80\xc3\xe0\x01\xcd"
"\x34\xe5\xc9\x2f\x76\xcc\x4c\x24\xee\xb8\xbc\x4e\x9a\xc2\xae\xd9\xe5"
"\x38\x03\xed\x0c\xa4\xae\x3a\x97\x37\xd2\x14\x06\x00\x05\xea\x6f\x17"
"\x83\xe2\x87\xb3\xbe\xe9\x6e\x3a\x72\x6e\xaf\xe2\xfd\xfa\xa7\x8d\x1f"
"\x48\xc1\x3b\x64\xdf\x07\x84\x77\x54\xb8\x40\x0d\xaa\xa6\x9b\xf5\xc8"
"\xf4\x35\x0a\xea\xe9\xca\x12\x07\xe7\x82\x83\xcd\x0b\x20\xce\xb3\x60"
"\xc7\xe6\x58\x82\x81\x63\xe2\xd2\x5c\x4a\xa3\x48\x56\x1f\x92\x7e\x88"
"\xf6\x3a\xa7\x0e\x73\xa5\xe6\x9b\x3d\xf3\x49\x59\x03\xf0\x65\x72\xe1"
"\xe0\x07\xfa\x55\xa2\x99\x9f\x59\x6d\x06\x73\x12\xf5\x77\x9e\x8d\xbf"
"\xdc\xf3\x42\x71\x38\xf3\xd4\x44\xd2\x63\x9a\x10\x47\x7f\x9b\xec\x4b"
"\x0b\xbb\x6e\x3c\x04\xbe\x68\x98\x1f\x39\x22\x03\xdd\x0e\xe3\xef\x47"
"\x8e\x16\xda\xcf\xc5\xe3\xe0\x3c\xf7\xab\x8e\x39\x02\xf1\xb0\xff\x03"
"\x4e\xf6\x55\xb2\x53\xca\x50\x93\x83\x81\x5b\x1b\x6f\xc6\x52\x2d\x4e"
"\x4f\xdc\x11\xa4\x8c\xf4\x2d\x48\x60\x46\x75\xfd\xe2\xb9\x4c\xf0\x05"
"\x00\xa2\x69\x08\x91\xab\xf8\xab\x9c\x01\x50\x73\x01\x4d\x9e\x08\xd4"
"\x33\x8b\x87\x80\xbd\xec\xd4\x36\xcf\x05\x41\x35\x9b\xaf\xff\xa4\x52"
"\x37\xf1\x04\xb9\x62\x10\x40\x3b\x2d\xe9\xef\xed\x49\x6f\x42\x35\x5b"
"\xc7\x87\x2c\x82\x74\x67\xcf\xa5\xc4\xe7\x27\x30\xd5\x6b\xd0\x68\xed"
"\x21\x1c\xf8\x47\x53\x5e\xde\xcb\x7b\x37\x3f\x78\xb0\x95\xb6\x84\x41"
"\xa3\x4c\xb5\x16\x82\xa8\xae\x4d\x24\xad\x04\x65\xf3\x92\x7f\x88\x9b"
"\x81\x30\x76\x03\x8e\x79\xa7\x96\x2f\xb3\x85\xa8\x1a\xa1\x02\x0f\x06"
"\xc4\xc2\xba\x1d\xd5\xca\xc7\xc1\x88\x76\xda\x86\x5d\x25\x87\x34\xdd"
"\x73\x58\x3d\xf2\x92\x89\x24\x48\x03\x9e\xf7\x99\xcf\x06\x30\xbe\xcd"
"\xcc\xe0\x45\x79\xb5\x56\x1d\xc8\x25\xab\x82\x98\x27\x94\x5e\x02\x0c"
"\x1f\x67\xee\x61\x5f\xeb\x62\x43\x37\x8e\x06\x10\x06\x0f\x02\xcc\xa4"
"\xe9\x1b\x2f\x00\x1e\xdb\x3d\x78\xfb\x4b\x55\x66\x8d\xda\x93\xae\xc9"
"\x2a\x5d\xe2\x03\x71\x7a\xa4\x9c\x2d\x28\x4a\xcf\xab\xe2\x62\xfc\xcf"
"\xcb\xb2\xb7\x5a\x21\x83\xc4\x6e\xb6\x5c\xa8\x10\x4e\x1b\x4d\xa7\xfb"
"\xb7\x7a\xb2\xfc\x04\x3a\xea\xd8\x7c\x32\xab\x87\x5e\xe7\xc2\xe7\xb7"
"\x01\x9c\x98\x2c\xd3\xb4\x3e\xae\xb1\xa5\xfb\x13\x5c\x0c\x7d\xce\xe8"
"\xfe\x65\x16\xa3\x28\x03\x2f\x88\xc0\x42\x89\x18\x24\x65\x9e\x9e\x94"
"\x26\x5c\x80\x3b\x35\xee\x5f\x83\xa2\xb2\x10\x52\x01\x06\x89\xaf\x9c"
"\x25\x1f\xe5\x29\x4b\x3d\x18\x02\xd5\x67\x6d\x95\xf1\x60\xec\x97\xb1"
"\xad\x94\x87\x2c\xb2\x04\x46\x42\xc3\x7b\x4a\x6c\xc6\xc0\x4e\xff\xc1"
"\x67\x2d\xb7\xe4\xb6\x8d\x78\x7d\x9a\x7a\x50\x8a\xe5\x4b\x3c\xd7\x36"
"\x9d\xde\x50\xe8\xc7\x7d\x95\xa3\xd3\x61\xc0\x40\xba\xbb\x17\x16\x07"
"\xca\xac\x2a\x35\x59\xad\x4f\x75\x46\x5f\x49\xc0\xd0\xae\x37\x16\xdb"
"\x6e\x00\xcb\x11\xdb\x4a\x5f\xad\xe2\xa5\x7c\x10\x23\x8e\x20\x4a\x67"
"\x73\x7c\x3b\x42\xaa\xe5\x01\xb2\x0f\x76\x94\xa0\x0f\x16\xe2\xd0\x17"
"\x40\x35\xa2\xc2\x26\x56\xdc\x29\x88\x0a\xce\xbd\xbe\x8d\xdb\xd7\x5c"
"\x2f\x99\x8d\x8a\xc2\xdf\xad\x2b\xa3\xa5\x04\x76\x7b\x6b\x45\xa4\x59"
"\x57\xf2\x4d\x75\x8e\xd0\x24\xb3\x84\x9c\x11\xd4\x12\xa2\xa0\x3b\x40"
"\x47\x49\x70\x22\xd9\xc3\x0e\x23\xef\x4d\xf5\xc8\x96\x44\xf4\x8b\xb5"
"\x36\xf7\x94\x5b\x59\xd7\xbc\xdd\xff\x75\x44\x13\xd1\x35\x27\x3e\xa8"
"\xe7\x5f\x22\xf2\x16\xc6\xb9\x99\x0a\xe7\x18\x06\xf2\xc0\x0b\x40\x25"
"\xc4\x8b\x75\xc0\xf7\x3c\xdb\x9a\x7b\x8f\xa3\x67\xb5\x00\x28\x06\x7e"
"\x7f\x16\xf4\xdd\x56\x9d\x46\x2f\x4f\x19\xea\xcd\xb3\xed\x70\xee\xeb"
"\xb4\x48\x3f\x8f\xd7\x77\xd4\x43\xe8\xb4\x04\x27\xdb\x6f\xe2\x90\x68"
"\xc0\xca\x3d\x24\x14\x44\x2e\x8f\x3a\x15\x47\x04\xb0\xe5\x1b\xc6\x64"
"\xa1\x37\xb2\x6b\xe7\x19\xf4\xf7\xc9\xa5\x67\x8a\x67\x4d\xfc\x95\xdf"
"\x80\xb9\xce\x37\x5d\xd6\x49\xc8\xc7\x04\xe5\x09\xbd\x88\xc8\xe6\x3d"
"\x8c\x7d\xd6\x70\x71\x11\x5c\x89\x82\xba\x46\xaf\x4d\x6a\xdc\xc9\xf6"
"\x8a\x75\xb9\x39\x7b\x03\x51\x53\xfa\xe4\x63\x66\xe7\x20\x5d\xd8\xd6"
"\xf3\x75\x25\xc1\xa0\xe9\x46\x10\xdd\x94\x32\x3f\x6c\x15\xd0\x85\x19"
"\x71\x49\xbf\xd6\x65\x55\x48\xcf\xd9\xc5\x2c\x97\x11\x93\x7f\x79\xab"
"\xb1\xa1\x24\xf1\x21\x04\x65\x48\x3c\xd3\xb2\xd7\x83\x78\xcf\xb8\x5e"
"\xd8\x2e\x7d\xa0\xf6\xeb\x6d\x27\x9f\x2a\xe4\x55\x92\x5d\x0f\x6f\x1b"
"\xa5\x71\xeb\xa2\x81\xf2\xa6\x54\xfb\x39\xdd\xff\x3b\x48\x44\x39\xff"
"\x15\x8e\x7c\x54\x19\xe0\x37\xf3\xe3\xad\x03\x8f\x22\x11\xf1\x03\x31"
"\x95\x56\x3c\x7f\x93\xcd\x54\xb9\x09\x4f\x22\x6e\x78\x32\x71\xe1\xe5"
"\xa2\xa2\xc1\x07\x12\xea\xb6\x25\xd6\x49\x31\xcd\x4f\xfe\x67\x38\xd9"
"\x7b\x9b\x5e\xf8\x28\xee\x9f\xb0\x59\xfc\x01\xaf\x0e\x79\xc1\xe1\x4b"
"\x1d\x25\x98\x8c\x69\xa3\x99\x56\x7c\x1d\x93\x76\x8f\x79\x71\xd3\x14"
"\x88\xb8\x65\x8a\x20\x87\x8b\x7c\x1d\xd7\xba\x02\xfc\x42\x93\x9d\xde"
"\x3d\x4a\x33\x39\xa6\x5d\x50\x7d\xc5\x9c\x51\x09\x7b\x40\x51\x77\x05"
"\xda\x56\xe9\xeb\xf0\xaf\xa5\x32\x82\xbf\x86\xdb\xb5\x8c\x54\x80\x69"
"\xff\x6e\xb9\x5a\xad\xe7\xcc\x66\xd7\xbb\xef\x72\x47\x79\xca\x1f\x73"
"\x1b\x33\x46\xff\x17\x70\x50\x37\x3d\x79\xff\x7b\x3e\x7f\x9b\xc0\xc1"
"\xb4\xb2\x66\xa8\x87\x8b\x90\xba\xaa\x03\x9d\x3e\x3b\x63\x97\x9a\xc3"
"\xdf\x6e\x6f\x48\x59\xaf\xd5\x02\x38\xc7\x54\x7a\x39\xb6\x08\x10\x93"
"\x80\x44\xae\x18\x5d\x2b\xa3\xe0\x0a\x4e\x73\x67\x68\x64\xae\x09\x0d"
"\x81\xea\xee\x5e\xe6\xcf\x1d\x0a\xb3\x78\xdd\x4d\xd8\x91\xe9\x37\xc2"
"\xea\x54\x10\xe0\x51\x30\x05\x00\x00\x00\x00\x00\x00\x00\x39\x11\xfa"
"\xb9\x64\xc2\x71\x55\x00\x27\x69\x7b\x52\x16\x06\x87\x46\x16\x02\xf8"
"\x8d\xf1\x65\xd8\x84\xb3\x6e\xc2\xb6\xc2\x5a\x2f\x33\xc7\x15\x68\x7e"
"\x9d\x4a\xfb\x96\xd6\x86\x1a\xca\x47\xda\x73\xd6\xf3\x14\x43\x45\xf4"
"\x88\x43\xdd\x01\x4e\x5c\x5a\xd8\xfe\x99\x57\x54\xbd\x9c\xf3\x2f\xce"
"\x1e\x31\x91\x9c\x4b\x20\x82\xfb\x0a\x30\xb9\xde\xae\x84\xbe\xd4\xb2"
"\x80\x45\x63\x40\x73\xc9\xc5\x8c\x89\xd9\xe9\x9c\x81\x76\x91\x77\xc6"
"\xd5\x94\xf8\x8a\x4f\xac\xfd\x4c\x73\x5a\x20\x30\x7c\x73\x7a\xfa\x2d"
"\x60\x39\x94\x73\x29\x6b\x83\x1d\xbd\x93\x3d\x93\x99\x4b\xa3\x06\x42"
"\x79\xb1\x0e\xa0\xc5\x83\x3f\x41\xf1\x57\xea\x23\x02\x99\x3d\xbe\x43"
"\x3b\x1a\xa3\xa3\x76\x6d\x54\x39\x02\x04\x84\xf4\x11\x3c\x4c\x85\x94"
"\x65\xc3\xb4\x15\xc3\x43\xf7\xf1\x40\xf3\x19\x53\x9d\x5b\xf3\x72\xaa"
"\xae\xa1\xcc\x43\xa6\xc5\xcb\xe5\x97\x58\xbf\xee\x29\x16\x58\x0d\xac"
"\x4b\x00\x8e\x59\x5f\x43\x74\x91\xd8\x7a\xbe\xd0\x2c\xef\xcd\x9d\xb5"
"\x3d\x94\xd0\x2d\xae\xe6\x79\x18\xe5\xd6\x78\x74\x63\x18\x3b\x4b\x87"
"\xc1\x05\x00\x00\x00\x2f\x78\x09\x95\x9b\xc0\x48\x85\x06\x13\xd1\x7c"
"\xa5\x10\x55\xf2\xf4\x16\xa4\x4f\xe1\x80\xd2\xd5\x0c\x31\x2c\xca\x7c"
"\xb1\x4a\x2b\xdc\x33\x1f\x57\xa9\x81\x71\x39\xa2\x06\xfc\x76\x95\x72"
"\x27\xff\xff\x2d\xe2\x0a\x4b\x8e\x37\x37\xfb\xb4\x29\x13\x77\x7c\x06"
"\x37\x6f\x79\x9e\xba\x36\x7e\x21\xf9\x4c\xa5\x98\x70\x5f\x5d\xcb\x76"
"\x7d\x6f\x09\x00\xd6\xb0\xf6\x09\x5e\x53\xc4\xc4\x23\x4d\x0c\x1f\xbe"
"\x43\x4f\x6a\xb8\xf4\x3c\x00\x13\xee\x93\xb8\x39\x46\xee\x77\x59\xe8"
"\x9d\x7b\xdd\x1a\x32\xd7\xb3\x11\x71\x1b\x75\x7f\xe4\x3c\x06\xd2\x1a"
"\x35\x81\x0d\x8f\xe9\x8b\x27\xfa\xea\x8a\xa1\x2b\xc8\x71\x6e\xef\xc5"
"\xc9\x7c\x45\xac\x33\xee\xec\x96\x4c\x52\x14\xbc\x3a\x93\x59\xbd\xea"
"\x1c\xcc\xab\x94\xf1\x5e\x36\x31\x9c\xb3\x4e\xbc\xac\xed\xb8\x2c\x2e"
"\xd3\xde\x5a\x8a\x8f\x00\x11\xe8\xf7\x4e\x82\xd7\xf9\x60\x93\x53\x0e"
"\x76\x69\x28\x39\xd7\x96\x19\x39\xad\xfd\xee\xea\xff\x19\xd1\x1e\xfc"
"\xaf\xb6\xd5\x46\xfe\xf2\x71\xe8\x9d\x6c\xc2\x38\x9e\x81\xff\x58\xce"
"\xfc\xce\x3f\xbf\x46\x25\xa7\xe7\xde\x40\xe4\x2e\x07\xb3\x44\x49\xe1"
"\x5e\x06\x5c\xc7\x34\x00\x02\x00\x00\x00\x00\x00\x00\xf2\x88\xa4\x51"
"\x0d\xe0\x3d\xab\x19\xd2\x62\x85\xed\xa8\x91\x56\xd5\x0d\xd3\x85\xa6"
"\x03\x33\xba\x5b\xbf\x5d\x77\xcd\x70\x07\xad\x15\x19\xad\x54\x70\xde"
"\x3d\xd6\xd6\x08\x0c\xaf\xcc\xf8\xa9\x74\x06\xbb\x6b\x68\xa1\xf0\xc4"
"\x54\x98\x20\xa7\x3c\x88\x0f\x47\x5f\x73\x2a\xe0\x03\x98\xe8\xbd\x1f"
"\x41\x08\xb7\x80\x7f\xb3\x3b\x72\x68\x5e\xc3\x7a\x2d\x3f\x76\x64\x13"
"\xa6\x04\x59\x51\x62\x46\xe5\xa1\xd9\x98\xa2\x01\x7a\xef\x09\x48\xa6"
"\x8c\xf2\x55\x31\x5a\xb8\x0d\xd3\x49\xe8\x91\xae\xf5\x95\xdc\x4d\x47"
"\x0e\x8a\xc3\x2a\x30\x8e\x15\xfc\x37\xd0\x6a\xea\xc2\x89\xc0\x52\x3f"
"\x48\x3e\x1f\xf7\x40\x8c\x60\x87\xf1\xab\x65\x2f\x2e\xf9\x1d\x4f\x2b"
"\x01\x98\x7b\x0f\x46\xda\x03\x4e\x5c\x3f\x74\x5a\x7e\xe8\x10\x1a\x39"
"\x34\xc5\x4e\x24\xb4\x8e\xc0\x27\x5e\x2d\x06\x87\xdc\x74\x6b\x08\x27"
"\xcb\xf6\x52\xf4\x06\xc6\xb9\x5f\x27\x22\xe5\x8c\x05\xf7\x52\xce\x21"
"\x26\x59\x6e\x1c\xd7\x65\x5b\x90\x48\x01\x78\x4c\x41\x6b\x22\xf7\x3d"
"\x32\x46\x78\xe2\x72\x4f\x43\xf1\xfe\x68\x7c\x7e\x8a\x60\xc2\x8b\x82"
"\xb6\x52\x83\x41\xb6\x48\xcd\xd5\x6f\xed\x7c\xdc\xbb\x15\x75\x91\x2d"
"\x5e\xcd\x36\xde\xa3\xbc\xa0\xb7\x42\x7d\x83\x92\xc6\x28\x94\x55\xe8"
"\xf8\xd2\xab\x22\x42\x72\x92\x51\xae\x03\x3a\x9e\x02\x21\x0e\x62\xdf"
"\x05\x46\xa7\x4b\x33\x3a\x1c\x48\xf9\x5f\xd5\x4a\xcb\x57\x41\x25\x9e"
"\x8c\x54\x88\xef\xee\xe3\x27\x41\x5c\xc1\x94\x51\x43\x2c\x6f\x14\xc2"
"\x76\x93\x10\x2a\x3c\xd8\x48\x57\xcd\x65\x86\xfc\x5c\xa9\xa9\x3e\xb0"
"\x14\x5f\xac\x06\x62\xff\x86\x10\x7f\x99\x8a\x8e\xf7\xdf\x8a\xa1\x40"
"\x46\xc5\x5b\x03\xd3\xd4\x7f\x88\xa8\xd6\x0f\x77\x74\xa2\xee\x08\x75"
"\x88\x97\xfb\x41\x1a\x94\xb3\xc2\xfc\x5d\x5f\x0d\xb4\x2c\x04\x56\xec"
"\x01\x5f\x08\xe5\x24\x7d\x33\xae\x2d\x35\x60\x3f\xf8\x45\x4c\x16\xf8"
"\x34\x28\x56\x93\x51\x25\x10\x2b\xb7\x84\xed\x71\x48\xb6\xce\x43\x1b"
"\x63\xee\x35\x6b\x0c\x78\x5f\x2f\x47\xb9\x0e\x29\x38\x9f\x22\xfc\x5b"
"\x59\xa7\x0e\xfa\xea\x2b\xd4\x01\x95\xaf\x44\x86\x22\x0d\x70\x2e\x30"
"\xbf\xc4\x3c\x10\xec\x23\xea\x62\x83\x99\x4a\x7d\xde\x4d\xcb\x61\xfe"
"\xa6\xb6\x51\xfb\x1d\x62\x45\x8d\x07\x41\xa1\x28\x30\x05\x2f\xcc\x46"
"\x0d\xb0\x43\xaf\xe5\x25\x62\x9b\x40\xd7\xce\xe4\x58\xe4\xcb\x5e\x93"
"\x0e\xd6\x24\x80\x6c\x43\xa0\x06\xe3\x93\x36\xd0\x7c\x2b\x80\x81\xc1"
"\x28\xad\x27\x06\xf4\x82\x61\xf7\x89\x74\x84\xc2\x97\xa1\xa6\x61\x3b"
"\xc1\x8f\x5a\x38\xd4\x42\x76\x8a\xf3\x80\x41\xef\xe0\x3d\x15\x2e\xf9"
"\x5f\xf5\x69\xe7\x6d\xb2\x39\x1f\x45\x09\xd7\xf3\x39\xd9\x2f\xdb\x4a"
"\x89\x36\x49\x49\xda\x39\x80\x00\x00\x00\x00\x00\x00\x00\xd8\x0a\x4f"
"\xe6\x54\x57\x83\x76\xe5\x99\xaf\xf3\x56\x5b\x1d\x53\x1f\x30\x91\x2b"
"\x99\x45\x03\x0b\x81\xea\x99\x35\xfd\x46\xed\xb4\x4a\x78\xf6\x15\x25"
"\x54\x90\xa4\xb6\x21\x50\x1f\x2a\x9e\x4d\x24\x62\x4c\x4d\xac\x92\x74"
"\x11\x8c\x67\x58\x4f\x5d\x37\x47\x55\x53\x4d\x7f\x68\xf6\x79\xc4\xff"
"\x51\x6a\x9c\x86\x1a\x0e\x7e\x65\x86\x8f\xcb\x2b\xf1\xcb\x9a\xea\x4e"
"\x05\xdf\x72\x27\x9f\xdb\x0d\x2b\x9e\x93\x5c\x5a\xf3\xcf\x47\x4b\x06"
"\x79\xdf\xc2\x48\xc1\xf5\xae\xa4\xb8\xb3\x2c\x5d\x29\x5e\x57\x07\x9d"
"\x0f\xe6\x62\xa4\x6b\x7f\x71\xcd\x47\x74\x4d\xb8\x6c\x50\xb7\x04\xc9"
"\x71\xd9\x02\x95\xc7\xb2\xc7\x43\x9a\x2d\x78\xcc\xfa\x79\xb5\xfc\x2b"
"\xff\x6b\xbf\x84\x02\x62\xbf\x89\x39\x4b\x3e\x06\x91\x95\x12\x64\xd2"
"\x70\x0c\x83\x8f\xa2\xc7\xb3\x42\x52\x60\xf5\x95\x54\xe5\x02\xdc\xea"
"\x39\xcb\x31\x3b\x00\x00\x00\x00\x00\x00\x4c\xa7\xc1\x2f\x45\x85\x8d"
"\x62\x84\xca\x62\x70\xd6\xb2\xf0\xe5\x8f\xde\xd8\xa7\xb4\xa3\x02\xa9"
"\x7b\xc6\x41\xdf\x07\x72\x0b\xa2\xb2\x6b\xbf\xcc\x80\x7c\xa0\xab\xb1"
"\xb4\x43\x22\x26\x9c\x21\xc5\xec\x68\xcb\x06\x8e\xa8\x80\x67\xd9\x05"
"\xea\x91\x7b\xb0\x3e\xef\xda\xeb\xde\xab\xf2\xd0\xdc\xe8\x09\x97\xc9"
"\x15\xc8\x94\x9d\xe9\x92\x58\x7c\x2c\xb5\xfe\x36\xd7\xd3\xe5\xdb\x21"
"\xb0\x94\xb8\xb7\x79\x40\xb5\xf0\x77\x22\xe4\x7a\x08\xd3\x67\xe5\xf8"
"\x4c\x96\xec\x66\x4b\x72\x93\x4b\x99\xb3\x10\x9a\xf6\x5d\x77\xe8\x6a"
"\xbd\x68\x59\xcd\xdf\x4b\xba\xe1\xf0\x93\x04\x62\xdf\x15\xfd\xdb\xc4"
"\x85\x62\xea\x35\x11\xa8\x06\x5e\xf0\x28\xcf\x12\xf1\x4d\xcf\x6e\xbe"
"\xcd\x8d\x98\x48\x36\x17\x4f\xaf\x1a\xa6\x09\xe5\xf1\xee\x11\x62\xdf"
"\xa1\x3b\xdc\x1f\xa7\xcf\xaa\xdb\xa8\x5c\x72\xe9\x75\x8f\x03\xa7\x05"
"\x00\xbe\x53\xf8\xd2\xa1\xdf\xb1\xc6\x8c\xc1\x64\xb0\xa0\x78\x0d\x97"
"\x1a\x96\xea\x2c\x4d\x4c\xa0\x39\x8c\x22\x35\x98\x0a\x93\x07\xb3\xd5"
"\xbd\x3b\x01\xfa\xff\xd0\xa5\xdb\xed\x28\x81\xa9\x70\x0a\xf5\x61\xac"
"\x8c\x6b\x00\x00\x00\x00\x00\x00\x00\xf9\x6f\x06\x81\x7f\xb9\x03\x72"
"\x9a\x7d\xb6\xff\x95\x76\x97\xc9\xed\xe7\x88\x5d\x94\xff\xb0\x96\x9b"
"\xe0\xda\xf6\x0a\xf9\x31\x09\xeb\x1d\xee\x72\xe4\x36\x3f\x51\xaf\x62"
"\xaf\x6f\xb2\xa6\xdf\x3b\xec\x89\x82\x2a\x7a\x0b\x67\x80\x58\xfa\x3f"
"\xef\x86\xfa\xec\x21\x6e\xb6\x99\x21\x62\xf8\xdc\xbf\x71\x9c\x14\x8c"
"\xd2\xf9\xc5\x5f\x49\x01\x20\x3a\x9a\x8a\x2c\x3e\x90\xf3\x94\x3d\xbc"
"\x10\x36\x0a\x1a\x49\x70\x0d\x1d\xfb\xf6\x6d\x69\xf6\xfb\xaf\x50\x6c"
"\x8b\xcc\xe8\xbb\x0d\x87\x2a\x02\x23\x89\x26\x40\x7a\x4e\xdd\xd5\xd0"
"\xfc\x5a\x75\x2f\x90\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00",
4096));
NONFAILING(*(uint16_t*)0x20001004 = 0x8f5);
syscall(__NR_write, /*fd=*/-1, /*data=*/0x20000000ul, /*len=*/0x1006ul);
break;
case 1:
NONFAILING(memcpy((void*)0x20000280,
"\x12\x01\x00\x00\xea\xfa\x72\x40\x93\x69\x01\xb0\x29\x3d"
"\xf4\x00\x10\x01\x09\x02\x1b\x00\x01\x24\xa8\x00\x80\x09"
"\x04\x00\x00\x01\x03\x00\x00\x00\x09\x05",
38));
NONFAILING(*(uint16_t*)0x200002a6 = -1);
NONFAILING(syz_usb_connect(/*speed=*/0, /*dev_len=*/0x2d,
/*dev=*/0x20000280, /*conn_descs=*/0));
break;
}
}
int main(void)
{
syscall(__NR_mmap, /*addr=*/0x1ffff000ul, /*len=*/0x1000ul, /*prot=*/0ul,
/*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1,
/*offset=*/0ul);
syscall(__NR_mmap, /*addr=*/0x20000000ul, /*len=*/0x1000000ul,
/*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/ 7ul,
/*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1,
/*offset=*/0ul);
syscall(__NR_mmap, /*addr=*/0x21000000ul, /*len=*/0x1000ul, /*prot=*/0ul,
/*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1,
/*offset=*/0ul);
setup_usb();
install_segv_handler();
for (procid = 0; procid < 5; procid++) {
if (fork() == 0) {
do_sandbox_none();
}
}
sleep(1000000);
return 0;
}