// https://syzkaller.appspot.com/bug?id=603580af4ac98fe928c40be08348ad644a613267 // autogenerated by syzkaller (https://github.com/google/syzkaller) #define _GNU_SOURCE #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include static unsigned long long procid; static __thread int clone_ongoing; static __thread int skip_segv; static __thread jmp_buf segv_env; static void segv_handler(int sig, siginfo_t* info, void* ctx) { if (__atomic_load_n(&clone_ongoing, __ATOMIC_RELAXED) != 0) { exit(sig); } uintptr_t addr = (uintptr_t)info->si_addr; const uintptr_t prog_start = 1 << 20; const uintptr_t prog_end = 100 << 20; int skip = __atomic_load_n(&skip_segv, __ATOMIC_RELAXED) != 0; int valid = addr < prog_start || addr > prog_end; if (skip && valid) { _longjmp(segv_env, 1); } exit(sig); } static void install_segv_handler(void) { struct sigaction sa; memset(&sa, 0, sizeof(sa)); sa.sa_handler = SIG_IGN; syscall(SYS_rt_sigaction, 0x20, &sa, NULL, 8); syscall(SYS_rt_sigaction, 0x21, &sa, NULL, 8); memset(&sa, 0, sizeof(sa)); sa.sa_sigaction = segv_handler; sa.sa_flags = SA_NODEFER | SA_SIGINFO; sigaction(SIGSEGV, &sa, NULL); sigaction(SIGBUS, &sa, NULL); } #define NONFAILING(...) \ ({ \ int ok = 1; \ __atomic_fetch_add(&skip_segv, 1, __ATOMIC_SEQ_CST); \ if (_setjmp(segv_env) == 0) { \ __VA_ARGS__; \ } else \ ok = 0; \ __atomic_fetch_sub(&skip_segv, 1, __ATOMIC_SEQ_CST); \ ok; \ }) static void sleep_ms(uint64_t ms) { usleep(ms * 1000); } static uint64_t current_time_ms(void) { struct timespec ts; if (clock_gettime(CLOCK_MONOTONIC, &ts)) exit(1); return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000; } static void use_temporary_dir(void) { char tmpdir_template[] = "./syzkaller.XXXXXX"; char* tmpdir = mkdtemp(tmpdir_template); if (!tmpdir) exit(1); if (chmod(tmpdir, 0777)) exit(1); if (chdir(tmpdir)) exit(1); } static void thread_start(void* (*fn)(void*), void* arg) { pthread_t th; pthread_attr_t attr; pthread_attr_init(&attr); pthread_attr_setstacksize(&attr, 128 << 10); int i = 0; for (; i < 100; i++) { if (pthread_create(&th, &attr, fn, arg) == 0) { pthread_attr_destroy(&attr); return; } if (errno == EAGAIN) { usleep(50); continue; } break; } exit(1); } #define BITMASK(bf_off, bf_len) (((1ull << (bf_len)) - 1) << (bf_off)) #define STORE_BY_BITMASK(type, htobe, addr, val, bf_off, bf_len) \ *(type*)(addr) = \ htobe((htobe(*(type*)(addr)) & ~BITMASK((bf_off), (bf_len))) | \ (((type)(val) << (bf_off)) & BITMASK((bf_off), (bf_len)))) typedef struct { int state; } event_t; static void event_init(event_t* ev) { ev->state = 0; } static void event_reset(event_t* ev) { ev->state = 0; } static void event_set(event_t* ev) { if (ev->state) exit(1); __atomic_store_n(&ev->state, 1, __ATOMIC_RELEASE); syscall(SYS_futex, &ev->state, FUTEX_WAKE | FUTEX_PRIVATE_FLAG, 1000000); } static void event_wait(event_t* ev) { while (!__atomic_load_n(&ev->state, __ATOMIC_ACQUIRE)) syscall(SYS_futex, &ev->state, FUTEX_WAIT | FUTEX_PRIVATE_FLAG, 0, 0); } static int event_isset(event_t* ev) { return __atomic_load_n(&ev->state, __ATOMIC_ACQUIRE); } static int event_timedwait(event_t* ev, uint64_t timeout) { uint64_t start = current_time_ms(); uint64_t now = start; for (;;) { uint64_t remain = timeout - (now - start); struct timespec ts; ts.tv_sec = remain / 1000; ts.tv_nsec = (remain % 1000) * 1000 * 1000; syscall(SYS_futex, &ev->state, FUTEX_WAIT | FUTEX_PRIVATE_FLAG, 0, &ts); if (__atomic_load_n(&ev->state, __ATOMIC_ACQUIRE)) return 1; now = current_time_ms(); if (now - start > timeout) return 0; } } static bool write_file(const char* file, const char* what, ...) { char buf[1024]; va_list args; va_start(args, what); vsnprintf(buf, sizeof(buf), what, args); va_end(args); buf[sizeof(buf) - 1] = 0; int len = strlen(buf); int fd = open(file, O_WRONLY | O_CLOEXEC); if (fd == -1) return false; if (write(fd, buf, len) != len) { int err = errno; close(fd); errno = err; return false; } close(fd); return true; } struct nlmsg { char* pos; int nesting; struct nlattr* nested[8]; char buf[4096]; }; static void netlink_init(struct nlmsg* nlmsg, int typ, int flags, const void* data, int size) { memset(nlmsg, 0, sizeof(*nlmsg)); struct nlmsghdr* hdr = (struct nlmsghdr*)nlmsg->buf; hdr->nlmsg_type = typ; hdr->nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK | flags; memcpy(hdr + 1, data, size); nlmsg->pos = (char*)(hdr + 1) + NLMSG_ALIGN(size); } static void netlink_attr(struct nlmsg* nlmsg, int typ, const void* data, int size) { struct nlattr* attr = (struct nlattr*)nlmsg->pos; attr->nla_len = sizeof(*attr) + size; attr->nla_type = typ; if (size > 0) memcpy(attr + 1, data, size); nlmsg->pos += NLMSG_ALIGN(attr->nla_len); } static void netlink_nest(struct nlmsg* nlmsg, int typ) { struct nlattr* attr = (struct nlattr*)nlmsg->pos; attr->nla_type = typ; nlmsg->pos += sizeof(*attr); nlmsg->nested[nlmsg->nesting++] = attr; } static void netlink_done(struct nlmsg* nlmsg) { struct nlattr* attr = nlmsg->nested[--nlmsg->nesting]; attr->nla_len = nlmsg->pos - (char*)attr; } static int netlink_send_ext(struct nlmsg* nlmsg, int sock, uint16_t reply_type, int* reply_len, bool dofail) { if (nlmsg->pos > nlmsg->buf + sizeof(nlmsg->buf) || nlmsg->nesting) exit(1); struct nlmsghdr* hdr = (struct nlmsghdr*)nlmsg->buf; hdr->nlmsg_len = nlmsg->pos - nlmsg->buf; struct sockaddr_nl addr; memset(&addr, 0, sizeof(addr)); addr.nl_family = AF_NETLINK; ssize_t n = sendto(sock, nlmsg->buf, hdr->nlmsg_len, 0, (struct sockaddr*)&addr, sizeof(addr)); if (n != (ssize_t)hdr->nlmsg_len) { if (dofail) exit(1); return -1; } n = recv(sock, nlmsg->buf, sizeof(nlmsg->buf), 0); if (reply_len) *reply_len = 0; if (n < 0) { if (dofail) exit(1); return -1; } if (n < (ssize_t)sizeof(struct nlmsghdr)) { errno = EINVAL; if (dofail) exit(1); return -1; } if (hdr->nlmsg_type == NLMSG_DONE) return 0; if (reply_len && hdr->nlmsg_type == reply_type) { *reply_len = n; return 0; } if (n < (ssize_t)(sizeof(struct nlmsghdr) + sizeof(struct nlmsgerr))) { errno = EINVAL; if (dofail) exit(1); return -1; } if (hdr->nlmsg_type != NLMSG_ERROR) { errno = EINVAL; if (dofail) exit(1); return -1; } errno = -((struct nlmsgerr*)(hdr + 1))->error; return -errno; } static int netlink_send(struct nlmsg* nlmsg, int sock) { return netlink_send_ext(nlmsg, sock, 0, NULL, true); } static int netlink_query_family_id(struct nlmsg* nlmsg, int sock, const char* family_name, bool dofail) { struct genlmsghdr genlhdr; memset(&genlhdr, 0, sizeof(genlhdr)); genlhdr.cmd = CTRL_CMD_GETFAMILY; netlink_init(nlmsg, GENL_ID_CTRL, 0, &genlhdr, sizeof(genlhdr)); netlink_attr(nlmsg, CTRL_ATTR_FAMILY_NAME, family_name, strnlen(family_name, GENL_NAMSIZ - 1) + 1); int n = 0; int err = netlink_send_ext(nlmsg, sock, GENL_ID_CTRL, &n, dofail); if (err < 0) { return -1; } uint16_t id = 0; struct nlattr* attr = (struct nlattr*)(nlmsg->buf + NLMSG_HDRLEN + NLMSG_ALIGN(sizeof(genlhdr))); for (; (char*)attr < nlmsg->buf + n; attr = (struct nlattr*)((char*)attr + NLMSG_ALIGN(attr->nla_len))) { if (attr->nla_type == CTRL_ATTR_FAMILY_ID) { id = *(uint16_t*)(attr + 1); break; } } if (!id) { errno = EINVAL; return -1; } recv(sock, nlmsg->buf, sizeof(nlmsg->buf), 0); return id; } static int netlink_next_msg(struct nlmsg* nlmsg, unsigned int offset, unsigned int total_len) { struct nlmsghdr* hdr = (struct nlmsghdr*)(nlmsg->buf + offset); if (offset == total_len || offset + hdr->nlmsg_len > total_len) return -1; return hdr->nlmsg_len; } static void netlink_add_device_impl(struct nlmsg* nlmsg, const char* type, const char* name) { struct ifinfomsg hdr; memset(&hdr, 0, sizeof(hdr)); 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); 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); 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_hsr(struct nlmsg* nlmsg, int sock, const char* name, const char* slave1, const char* slave2) { netlink_add_device_impl(nlmsg, "hsr", name); 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); 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); 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); 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); 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); 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 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) { 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(nlmsg, sock); 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) { 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(nlmsg, sock); if (err < 0) { } return err; } static int get_ifla_operstate(struct nlmsg* nlmsg, int ifindex) { 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, true); 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) { int ifindex = if_nametoindex(interface); while (true) { usleep(1000); int ret = get_ifla_operstate(nlmsg, ifindex); 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) { int ifindex = if_nametoindex(interface); if (ifindex == 0) { return -1; } int ret = nl80211_set_interface(nlmsg, sock, nl80211_family_id, ifindex, NL80211_IFTYPE_ADHOC); 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); 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) { if (errno != ENOENT && errno != EACCES) exit(1); } else { 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) { return; } 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) < 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); 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) { char buf[16]; sprintf(buf, "%u %u", addr, port_count); if (write_file("/sys/bus/netdevsim/new_device", buf)) { 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"}, {"netdevsim", netdevsim}, {"veth", 0}, {"xfrm", "xfrm0"}, {"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_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 BTPROTO_HCI 1 #define ACL_LINK 1 #define SCAN_PAGE 2 typedef struct { uint8_t b[6]; } __attribute__((packed)) bdaddr_t; #define HCI_COMMAND_PKT 1 #define HCI_EVENT_PKT 4 #define HCI_VENDOR_PKT 0xff struct hci_command_hdr { uint16_t opcode; uint8_t plen; } __attribute__((packed)); struct hci_event_hdr { uint8_t evt; uint8_t plen; } __attribute__((packed)); #define HCI_EV_CONN_COMPLETE 0x03 struct hci_ev_conn_complete { uint8_t status; uint16_t handle; bdaddr_t bdaddr; uint8_t link_type; uint8_t encr_mode; } __attribute__((packed)); #define HCI_EV_CONN_REQUEST 0x04 struct hci_ev_conn_request { bdaddr_t bdaddr; uint8_t dev_class[3]; uint8_t link_type; } __attribute__((packed)); #define HCI_EV_REMOTE_FEATURES 0x0b struct hci_ev_remote_features { uint8_t status; uint16_t handle; uint8_t features[8]; } __attribute__((packed)); #define HCI_EV_CMD_COMPLETE 0x0e struct hci_ev_cmd_complete { uint8_t ncmd; uint16_t opcode; } __attribute__((packed)); #define HCI_OP_WRITE_SCAN_ENABLE 0x0c1a #define HCI_OP_READ_BUFFER_SIZE 0x1005 struct hci_rp_read_buffer_size { uint8_t status; uint16_t acl_mtu; uint8_t sco_mtu; uint16_t acl_max_pkt; uint16_t sco_max_pkt; } __attribute__((packed)); #define HCI_OP_READ_BD_ADDR 0x1009 struct hci_rp_read_bd_addr { uint8_t status; bdaddr_t bdaddr; } __attribute__((packed)); #define HCI_EV_LE_META 0x3e struct hci_ev_le_meta { uint8_t subevent; } __attribute__((packed)); #define HCI_EV_LE_CONN_COMPLETE 0x01 struct hci_ev_le_conn_complete { uint8_t status; uint16_t handle; uint8_t role; uint8_t bdaddr_type; bdaddr_t bdaddr; uint16_t interval; uint16_t latency; uint16_t supervision_timeout; uint8_t clk_accurancy; } __attribute__((packed)); struct hci_dev_req { uint16_t dev_id; uint32_t dev_opt; }; struct vhci_vendor_pkt { uint8_t type; uint8_t opcode; uint16_t id; }; #define HCIDEVUP _IOW('H', 201, int) #define HCISETSCAN _IOW('H', 221, int) static int vhci_fd = -1; static void rfkill_unblock_all() { int fd = open("/dev/rfkill", O_WRONLY); if (fd < 0) exit(1); struct rfkill_event event = {0}; event.idx = 0; event.type = RFKILL_TYPE_ALL; event.op = RFKILL_OP_CHANGE_ALL; event.soft = 0; event.hard = 0; if (write(fd, &event, sizeof(event)) < 0) exit(1); close(fd); } static void hci_send_event_packet(int fd, uint8_t evt, void* data, size_t data_len) { struct iovec iv[3]; struct hci_event_hdr hdr; hdr.evt = evt; hdr.plen = data_len; uint8_t type = HCI_EVENT_PKT; iv[0].iov_base = &type; iv[0].iov_len = sizeof(type); iv[1].iov_base = &hdr; iv[1].iov_len = sizeof(hdr); iv[2].iov_base = data; iv[2].iov_len = data_len; if (writev(fd, iv, sizeof(iv) / sizeof(struct iovec)) < 0) exit(1); } static void hci_send_event_cmd_complete(int fd, uint16_t opcode, void* data, size_t data_len) { struct iovec iv[4]; struct hci_event_hdr hdr; hdr.evt = HCI_EV_CMD_COMPLETE; hdr.plen = sizeof(struct hci_ev_cmd_complete) + data_len; struct hci_ev_cmd_complete evt_hdr; evt_hdr.ncmd = 1; evt_hdr.opcode = opcode; uint8_t type = HCI_EVENT_PKT; iv[0].iov_base = &type; iv[0].iov_len = sizeof(type); iv[1].iov_base = &hdr; iv[1].iov_len = sizeof(hdr); iv[2].iov_base = &evt_hdr; iv[2].iov_len = sizeof(evt_hdr); iv[3].iov_base = data; iv[3].iov_len = data_len; if (writev(fd, iv, sizeof(iv) / sizeof(struct iovec)) < 0) exit(1); } static bool process_command_pkt(int fd, char* buf, ssize_t buf_size) { struct hci_command_hdr* hdr = (struct hci_command_hdr*)buf; if (buf_size < (ssize_t)sizeof(struct hci_command_hdr) || hdr->plen != buf_size - sizeof(struct hci_command_hdr)) exit(1); switch (hdr->opcode) { case HCI_OP_WRITE_SCAN_ENABLE: { uint8_t status = 0; hci_send_event_cmd_complete(fd, hdr->opcode, &status, sizeof(status)); return true; } case HCI_OP_READ_BD_ADDR: { struct hci_rp_read_bd_addr rp = {0}; rp.status = 0; memset(&rp.bdaddr, 0xaa, 6); hci_send_event_cmd_complete(fd, hdr->opcode, &rp, sizeof(rp)); return false; } case HCI_OP_READ_BUFFER_SIZE: { struct hci_rp_read_buffer_size rp = {0}; rp.status = 0; rp.acl_mtu = 1021; rp.sco_mtu = 96; rp.acl_max_pkt = 4; rp.sco_max_pkt = 6; hci_send_event_cmd_complete(fd, hdr->opcode, &rp, sizeof(rp)); return false; } } char dummy[0xf9] = {0}; hci_send_event_cmd_complete(fd, hdr->opcode, dummy, sizeof(dummy)); return false; } static void* event_thread(void* arg) { while (1) { char buf[1024] = {0}; ssize_t buf_size = read(vhci_fd, buf, sizeof(buf)); if (buf_size < 0) exit(1); if (buf_size > 0 && buf[0] == HCI_COMMAND_PKT) { if (process_command_pkt(vhci_fd, buf + 1, buf_size - 1)) break; } } return NULL; } #define HCI_HANDLE_1 200 #define HCI_HANDLE_2 201 static void initialize_vhci() { int hci_sock = socket(AF_BLUETOOTH, SOCK_RAW, BTPROTO_HCI); if (hci_sock < 0) exit(1); vhci_fd = open("/dev/vhci", O_RDWR); if (vhci_fd == -1) exit(1); const int kVhciFd = 202; if (dup2(vhci_fd, kVhciFd) < 0) exit(1); close(vhci_fd); vhci_fd = kVhciFd; struct vhci_vendor_pkt vendor_pkt; if (read(vhci_fd, &vendor_pkt, sizeof(vendor_pkt)) != sizeof(vendor_pkt)) exit(1); if (vendor_pkt.type != HCI_VENDOR_PKT) exit(1); pthread_t th; if (pthread_create(&th, NULL, event_thread, NULL)) exit(1); int ret = ioctl(hci_sock, HCIDEVUP, vendor_pkt.id); if (ret) { if (errno == ERFKILL) { rfkill_unblock_all(); ret = ioctl(hci_sock, HCIDEVUP, vendor_pkt.id); } if (ret && errno != EALREADY) exit(1); } struct hci_dev_req dr = {0}; dr.dev_id = vendor_pkt.id; dr.dev_opt = SCAN_PAGE; if (ioctl(hci_sock, HCISETSCAN, &dr)) exit(1); struct hci_ev_conn_request request; memset(&request, 0, sizeof(request)); memset(&request.bdaddr, 0xaa, 6); *(uint8_t*)&request.bdaddr.b[5] = 0x10; request.link_type = ACL_LINK; hci_send_event_packet(vhci_fd, HCI_EV_CONN_REQUEST, &request, sizeof(request)); struct hci_ev_conn_complete complete; memset(&complete, 0, sizeof(complete)); complete.status = 0; complete.handle = HCI_HANDLE_1; memset(&complete.bdaddr, 0xaa, 6); *(uint8_t*)&complete.bdaddr.b[5] = 0x10; complete.link_type = ACL_LINK; complete.encr_mode = 0; hci_send_event_packet(vhci_fd, HCI_EV_CONN_COMPLETE, &complete, sizeof(complete)); struct hci_ev_remote_features features; memset(&features, 0, sizeof(features)); features.status = 0; features.handle = HCI_HANDLE_1; hci_send_event_packet(vhci_fd, HCI_EV_REMOTE_FEATURES, &features, sizeof(features)); struct { struct hci_ev_le_meta le_meta; struct hci_ev_le_conn_complete le_conn; } le_conn; memset(&le_conn, 0, sizeof(le_conn)); le_conn.le_meta.subevent = HCI_EV_LE_CONN_COMPLETE; memset(&le_conn.le_conn.bdaddr, 0xaa, 6); *(uint8_t*)&le_conn.le_conn.bdaddr.b[5] = 0x11; le_conn.le_conn.role = 1; le_conn.le_conn.handle = HCI_HANDLE_2; hci_send_event_packet(vhci_fd, HCI_EV_LE_META, &le_conn, sizeof(le_conn)); pthread_join(th, NULL); close(hci_sock); } #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)) { } 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) return; if (mount("none", dir, "cgroup", 0, enabled + 1)) { } if (chmod(dir, 0777)) { } } static void setup_cgroups() { const char* unified_controllers[] = {"+cpu", "+memory", "+io", "+pids"}; const char* net_controllers[] = {"net", "net_prio", "devices", "blkio", "freezer"}; const char* cpu_controllers[] = {"cpuset", "cpuacct", "hugetlb", "rlimit"}; if (mkdir("/syzcgroup", 0777)) { } if (mkdir("/syzcgroup/unified", 0777)) { } if (mount("none", "/syzcgroup/unified", "cgroup2", 0, NULL)) { } if (chmod("/syzcgroup/unified", 0777)) { } int unified_control = open("/syzcgroup/unified/cgroup.subtree_control", O_WRONLY); if (unified_control != -1) { unsigned i; for (i = 0; i < sizeof(unified_controllers) / sizeof(unified_controllers[0]); i++) if (write(unified_control, unified_controllers[i], strlen(unified_controllers[i])) < 0) { } close(unified_control); } 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/memory.low", cgroupdir); write_file(file, "%d", 298 << 20); snprintf(file, sizeof(file), "%s/memory.high", cgroupdir); write_file(file, "%d", 299 << 20); snprintf(file, sizeof(file), "%s/memory.max", cgroupdir); write_file(file, "%d", 300 << 20); 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(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 = 0; 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(); initialize_vhci(); sandbox_common(); drop_caps(); initialize_netdevices_init(); if (unshare(CLONE_NEWNET)) { } initialize_tun(); initialize_netdevices(); initialize_wifi_devices(); 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_binfmt_misc() { if (mount(0, "/proc/sys/fs/binfmt_misc", "binfmt_misc", 0, 0)) { } write_file("/proc/sys/fs/binfmt_misc/register", ":syz0:M:0:\x01::./file0:"); write_file("/proc/sys/fs/binfmt_misc/register", ":syz1:M:1:\x02::./file0:POC"); } static void setup_sysctl() { char mypid[32]; snprintf(mypid, sizeof(mypid), "%d", getpid()); struct { const char* name; const char* data; } files[] = { {"/sys/kernel/debug/x86/nmi_longest_ns", "10000000000"}, {"/proc/sys/kernel/hung_task_check_interval_secs", "20"}, {"/proc/sys/net/core/bpf_jit_kallsyms", "1"}, {"/proc/sys/net/core/bpf_jit_harden", "0"}, {"/proc/sys/kernel/kptr_restrict", "0"}, {"/proc/sys/kernel/softlockup_all_cpu_backtrace", "1"}, {"/proc/sys/fs/mount-max", "100"}, {"/proc/sys/vm/oom_dump_tasks", "0"}, {"/proc/sys/debug/exception-trace", "0"}, {"/proc/sys/kernel/printk", "7 4 1 3"}, {"/proc/sys/net/ipv4/ping_group_range", "0 65535"}, {"/proc/sys/kernel/keys/gc_delay", "1"}, {"/proc/sys/vm/oom_kill_allocating_task", "1"}, {"/proc/sys/kernel/ctrl-alt-del", "0"}, {"/proc/sys/kernel/cad_pid", mypid}, }; for (size_t i = 0; i < sizeof(files) / sizeof(files[0]); i++) { if (!write_file(files[i].name, files[i].data)) printf("write to %s failed: %s\n", files[i].name, strerror(errno)); } } #define NL802154_CMD_SET_SHORT_ADDR 11 #define NL802154_ATTR_IFINDEX 3 #define NL802154_ATTR_SHORT_ADDR 10 static void setup_802154() { int sock_route = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE); if (sock_route == -1) exit(1); int sock_generic = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC); if (sock_generic < 0) exit(1); int nl802154_family_id = netlink_query_family_id(&nlmsg, sock_generic, "nl802154", true); for (int i = 0; i < 2; i++) { char devname[] = "wpan0"; devname[strlen(devname) - 1] += i; uint64_t hwaddr = 0xaaaaaaaaaaaa0002 + (i << 8); uint16_t shortaddr = 0xaaa0 + i; int ifindex = if_nametoindex(devname); struct genlmsghdr genlhdr; memset(&genlhdr, 0, sizeof(genlhdr)); genlhdr.cmd = NL802154_CMD_SET_SHORT_ADDR; netlink_init(&nlmsg, nl802154_family_id, 0, &genlhdr, sizeof(genlhdr)); netlink_attr(&nlmsg, NL802154_ATTR_IFINDEX, &ifindex, sizeof(ifindex)); netlink_attr(&nlmsg, NL802154_ATTR_SHORT_ADDR, &shortaddr, sizeof(shortaddr)); int err = netlink_send(&nlmsg, sock_generic); if (err < 0) { } netlink_device_change(&nlmsg, sock_route, devname, true, 0, &hwaddr, sizeof(hwaddr), 0); if (i == 0) { netlink_add_device_impl(&nlmsg, "lowpan", "lowpan0"); netlink_done(&nlmsg); netlink_attr(&nlmsg, IFLA_LINK, &ifindex, sizeof(ifindex)); int err = netlink_send(&nlmsg, sock_route); if (err < 0) { } } } close(sock_route); close(sock_generic); } 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) { int i, call, thread; for (call = 0; call < 17; 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); if (call == 0 || call == 1 || call == 3 || call == 5 || call == 8 || call == 10 || call == 11 || call == 12 || call == 13 || call == 14 || call == 15) break; event_timedwait(&th->done, 50); break; } } for (i = 0; i < 100 && __atomic_load_n(&running, __ATOMIC_RELAXED); i++) sleep_ms(1); close_fds(); } static void execute_one(void); #define WAIT_FLAGS __WALL static void loop(void) { setup_loop(); int iter = 0; for (;; iter++) { char cwdbuf[32]; sprintf(cwdbuf, "./%d", iter); if (mkdir(cwdbuf, 0777)) exit(1); reset_loop(); int pid = fork(); if (pid < 0) exit(1); if (pid == 0) { if (chdir(cwdbuf)) exit(1); setup_test(); execute_one(); exit(0); } int status = 0; uint64_t start = current_time_ms(); for (;;) { 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[4] = {0xffffffffffffffff, 0xffffffffffffffff, 0x0, 0xffffffffffffffff}; void execute_call(int call) { intptr_t res = 0; switch (call) { case 0: NONFAILING(*(uint32_t*)0x20000700 = 1); NONFAILING(*(uint32_t*)0x20000704 = 0x80); NONFAILING(*(uint8_t*)0x20000708 = 0); NONFAILING(*(uint8_t*)0x20000709 = 0); NONFAILING(*(uint8_t*)0x2000070a = 0); NONFAILING(*(uint8_t*)0x2000070b = 0); NONFAILING(*(uint32_t*)0x2000070c = 0); NONFAILING(*(uint64_t*)0x20000710 = 0x50d); NONFAILING(*(uint64_t*)0x20000718 = 0); NONFAILING(*(uint64_t*)0x20000720 = 0); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000728, 0, 0, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000728, 0, 1, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000728, 0, 2, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000728, 0, 3, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000728, 0, 4, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000728, 0, 5, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000728, 0, 6, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000728, 0, 7, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000728, 0, 8, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000728, 0, 9, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000728, 0, 10, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000728, 0, 11, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000728, 0, 12, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000728, 0, 13, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000728, 0, 14, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000728, 0, 15, 2)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000728, 0, 17, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000728, 0, 18, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000728, 0, 19, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000728, 0, 20, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000728, 0, 21, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000728, 0, 22, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000728, 0, 23, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000728, 0, 24, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000728, 0, 25, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000728, 0, 26, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000728, 0, 27, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000728, 0, 28, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000728, 0, 29, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000728, 0, 30, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000728, 0, 31, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000728, 0, 32, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000728, 0, 33, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000728, 0, 34, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000728, 0, 35, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000728, 0, 36, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000728, 0, 37, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000728, 0, 38, 26)); NONFAILING(*(uint32_t*)0x20000730 = 0); NONFAILING(*(uint32_t*)0x20000734 = 0); NONFAILING(*(uint64_t*)0x20000738 = 0); NONFAILING(*(uint64_t*)0x20000740 = 0); NONFAILING(*(uint64_t*)0x20000748 = 0); NONFAILING(*(uint64_t*)0x20000750 = 0); NONFAILING(*(uint32_t*)0x20000758 = 0); NONFAILING(*(uint32_t*)0x2000075c = 0); NONFAILING(*(uint64_t*)0x20000760 = 0); NONFAILING(*(uint32_t*)0x20000768 = 0); NONFAILING(*(uint16_t*)0x2000076c = 0); NONFAILING(*(uint16_t*)0x2000076e = 0); NONFAILING(*(uint32_t*)0x20000770 = 0); NONFAILING(*(uint32_t*)0x20000774 = 0); NONFAILING(*(uint64_t*)0x20000778 = 0); syscall(__NR_perf_event_open, 0x20000700ul, 0, 0xff7ffffffffffffful, -1, 0ul); break; case 1: syscall(__NR_sendmsg, -1, 0ul, 0ul); break; case 2: res = syscall(__NR_socket, 0x10ul, 3ul, 0); if (res != -1) r[0] = res; break; case 3: syscall(__NR_ioctl, -1, 0x40082404, 0ul); break; case 4: NONFAILING(*(uint32_t*)0x20000780 = 0); NONFAILING(*(uint32_t*)0x20000784 = 0x80); NONFAILING(*(uint8_t*)0x20000788 = 0); NONFAILING(*(uint8_t*)0x20000789 = 0); NONFAILING(*(uint8_t*)0x2000078a = 0); NONFAILING(*(uint8_t*)0x2000078b = 0); NONFAILING(*(uint32_t*)0x2000078c = 0); NONFAILING(*(uint64_t*)0x20000790 = 0); NONFAILING(*(uint64_t*)0x20000798 = 0x20); NONFAILING(*(uint64_t*)0x200007a0 = 5); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200007a8, 0, 0, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200007a8, 0, 1, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200007a8, 0, 2, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200007a8, 0, 3, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200007a8, 0, 4, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200007a8, 0, 5, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200007a8, 0, 6, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200007a8, 0, 7, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200007a8, 0, 8, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200007a8, 0, 9, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200007a8, 0, 10, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200007a8, 0, 11, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200007a8, 0, 12, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200007a8, 0, 13, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200007a8, 0, 14, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200007a8, 0, 15, 2)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200007a8, 0, 17, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200007a8, 0, 18, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200007a8, 0, 19, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200007a8, 0, 20, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200007a8, 0, 21, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200007a8, 0, 22, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200007a8, 0, 23, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200007a8, 0, 24, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200007a8, 0, 25, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200007a8, 0, 26, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200007a8, 0, 27, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200007a8, 0, 28, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200007a8, 0, 29, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200007a8, 0, 30, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200007a8, 0, 31, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200007a8, 0, 32, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200007a8, 0, 33, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200007a8, 0, 34, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200007a8, 0, 35, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200007a8, 0, 36, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200007a8, 0, 37, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200007a8, 0, 38, 26)); NONFAILING(*(uint32_t*)0x200007b0 = 0x100002); NONFAILING(*(uint32_t*)0x200007b4 = 1); NONFAILING(*(uint64_t*)0x200007b8 = 0x20000480); NONFAILING(*(uint64_t*)0x200007c0 = 0); NONFAILING(*(uint64_t*)0x200007c8 = 0x2360); NONFAILING(*(uint64_t*)0x200007d0 = 0x400); NONFAILING(*(uint32_t*)0x200007d8 = 0); NONFAILING(*(uint32_t*)0x200007dc = 5); NONFAILING(*(uint64_t*)0x200007e0 = 0); NONFAILING(*(uint32_t*)0x200007e8 = 0); NONFAILING(*(uint16_t*)0x200007ec = 0); NONFAILING(*(uint16_t*)0x200007ee = 0); NONFAILING(*(uint32_t*)0x200007f0 = 0); NONFAILING(*(uint32_t*)0x200007f4 = 0); NONFAILING(*(uint64_t*)0x200007f8 = 0); res = syscall(__NR_perf_event_open, 0x20000780ul, 0, 0xfffffdfffffffffful, -1, 8ul); if (res != -1) r[1] = res; break; case 5: syscall(__NR_socket, 0x11ul, 2ul, 0x300); { int i; for (i = 0; i < 32; i++) { syscall(__NR_socket, 0x11ul, 2ul, 0x300); } } break; case 6: NONFAILING(memcpy((void*)0x20000080, "batadv_slave_0\000\000", 16)); res = syscall(__NR_ioctl, -1, 0x8933, 0x20000080ul); { int i; for (i = 0; i < 32; i++) { syscall(__NR_ioctl, -1, 0x8933, 0x20000080ul); } } if (res != -1) NONFAILING(r[2] = *(uint32_t*)0x20000090); break; case 7: NONFAILING(*(uint64_t*)0x20000080 = 0); NONFAILING(*(uint32_t*)0x20000088 = 0); NONFAILING(*(uint64_t*)0x20000090 = 0x20000140); NONFAILING(*(uint64_t*)0x20000140 = 0x20001040); NONFAILING(memcpy((void*)0x20001040, "\x34\x00\x00\x00\x11\x00\x01\x50\x50\x7d\x1f\xc7\x4e\x85" "\xd1\xe5\xcb\x45\xb2\xbc", 20)); NONFAILING(*(uint32_t*)0x20001054 = r[2]); NONFAILING(memcpy( (void*)0x20001058, "\x01\x29\x2d\x87\x08\x37\xa8\x16\xf6\xc1\x2d\xc4\xe5\x84\x00\x10\x00" "\x00\x00\x00\x14\x00\x35\x00\x73\x02\x24\x70\x91\x9d\x98\x34\xba\xea" "\x48\x11\xe5\x00\x00\xcb\xd0\xeb\xb4\x34\x03\x44\x6b\x69\x19\x30\xf1" "\x7e\x56\x3d\xe3\x42\x65\x94\x79\x2a\x10\x42\xf9\xda\x4a\xea\x04\xc0" "\xdd\x58\x38\x91\x26\xb0\x42\x43\x69\xa1\xf5\xc9\x6d\xc0\xd5\xea\x28" "\x64\x2d\x02\xd1\x03\xc8\x31\x0d\x30\xfa\x59\x04\x68\x57\xdc\xeb\x31" "\x80\xb3\x07\xf7\x32\x8a\x19\xaa\x4d\x4c\xf8\xdc\x5d\xe5\x74\xd4\xd8" "\x25\x86\xb3\x3b\x78\x8c\xaf\x96\x3a\xb3\x72\x65\x72\xa6\xf8\xad\x00" "\x72\xa4\x8f\xad\x0a\x91\x8d\x99\xa2\x39\xe3\xb8\x95\xa5\x44\x57\x52" "\x29\x8d\x31\x5c\xac\x66\x92\x84\x50\x13\x5d\xf3\xfd\x39\xe7\xf4\xd0" "\x92\xe1\x0a\x2f\xc9\xb7\x49\x23\xb2\xed\x5d\x46\x7c\x8e\x45\xe0\xdc" "\x8d\x8e\x5f\x24\x03\x97\xe2\x2d\x51\xca\x83\x3c\xfd\x65\x1f\x7a\x17" "\x56\x07\xa4\xdf\x34\xb4\xc5\xe5\xb6\x0d\x53\x4f\x61\x90\xe6\x1f\x2d" "\x42\x8e\x44\x03\x88\xa7\xd3\x34\x55\x29\x63\xa2\xc0\xdd\xcb\xb6\xb1" "\x64\x13\x96\xfe\x4a\x82\xaf\x07\xfe\x09\xbc\xfb\x38\x17\x50\x0e\xf4" "\x36\x17\x7a\x0b\x2f\x96\xf7\x62\xbc\x19\x0d\x3c\x71\x14\x22\xa8\xf5" "\x8e\xff\x65\xd0\x78\xea\x45\x94\x52\x0f\x15\xc4\xb8\xf7\xb5\xa7\x6c" "\xa8\x8f\xb8\xa7\x92\xa4\x76\x21\x44\xe2\xe7\x21\xff\x01\xab\xd5\x3d" "\xee\x21\x3b\x9a\xd0\x9a\x62\x9e\x1c\x39\xad\xdf\x95\xdb\xab\xf4\xab" "\x32\xdf\xe7\xcb\x52\x04\x75\xe3\xdb\x2f\xeb\x0f", 335)); NONFAILING(*(uint64_t*)0x20000148 = 0x34); NONFAILING(*(uint64_t*)0x20000098 = 1); NONFAILING(*(uint64_t*)0x200000a0 = 0); NONFAILING(*(uint64_t*)0x200000a8 = 0); NONFAILING(*(uint32_t*)0x200000b0 = 0); syscall(__NR_sendmsg, -1, 0x20000080ul, 0x40ul); break; case 8: syscall(__NR_socket, 0x10ul, 3ul, 0x10); break; case 9: NONFAILING(*(uint32_t*)0x200003c0 = 1); NONFAILING(*(uint32_t*)0x200003c4 = 1); NONFAILING(*(uint32_t*)0x200003c8 = 0x18); NONFAILING(*(uint32_t*)0x200003cc = -1); NONFAILING(*(uint32_t*)0x200003d0 = 0x10000); NONFAILING(memcpy((void*)0x200003d8, "./file0\000", 8)); res = syscall(__NR_ioctl, -1, 0xc0189373, 0x200003c0ul); if (res != -1) NONFAILING(r[3] = *(uint32_t*)0x200003cc); break; case 10: NONFAILING(*(uint32_t*)0x20000340 = 3); NONFAILING(*(uint32_t*)0x20000344 = 0x80); NONFAILING(*(uint8_t*)0x20000348 = 0xfd); NONFAILING(*(uint8_t*)0x20000349 = 6); NONFAILING(*(uint8_t*)0x2000034a = 3); NONFAILING(*(uint8_t*)0x2000034b = 7); NONFAILING(*(uint32_t*)0x2000034c = 0); NONFAILING(*(uint64_t*)0x20000350 = 4); NONFAILING(*(uint64_t*)0x20000358 = 0x1000); NONFAILING(*(uint64_t*)0x20000360 = 1); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000368, 0, 0, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000368, 1, 1, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000368, 1, 2, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000368, 1, 3, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000368, 0, 4, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000368, 1, 5, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000368, 0, 6, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000368, 1, 7, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000368, 1, 8, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000368, 1, 9, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000368, 0, 10, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000368, 1, 11, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000368, 1, 12, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000368, 1, 13, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000368, 0, 14, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000368, 1, 15, 2)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000368, 0, 17, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000368, 0, 18, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000368, 1, 19, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000368, 0, 20, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000368, 0, 21, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000368, 0, 22, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000368, 1, 23, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000368, 0, 24, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000368, 0, 25, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000368, 0, 26, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000368, 1, 27, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000368, 0, 28, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000368, 1, 29, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000368, 0, 30, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000368, 0, 31, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000368, 0, 32, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000368, 1, 33, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000368, 0, 34, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000368, 0, 35, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000368, 0, 36, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000368, 1, 37, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000368, 0, 38, 26)); NONFAILING(*(uint32_t*)0x20000370 = 1); NONFAILING(*(uint32_t*)0x20000374 = 2); NONFAILING(*(uint64_t*)0x20000378 = 5); NONFAILING(*(uint64_t*)0x20000380 = 8); NONFAILING(*(uint64_t*)0x20000388 = 0x12942); NONFAILING(*(uint64_t*)0x20000390 = 0x3af); NONFAILING(*(uint32_t*)0x20000398 = 0x8d8); NONFAILING(*(uint32_t*)0x2000039c = 0); NONFAILING(*(uint64_t*)0x200003a0 = 4); NONFAILING(*(uint32_t*)0x200003a8 = 3); NONFAILING(*(uint16_t*)0x200003ac = 0x80); NONFAILING(*(uint16_t*)0x200003ae = 0); NONFAILING(*(uint32_t*)0x200003b0 = 9); NONFAILING(*(uint32_t*)0x200003b4 = 0); NONFAILING(*(uint64_t*)0x200003b8 = 0xfffffffffffff326); syscall(__NR_perf_event_open, 0x20000340ul, -1, 0x10ul, r[3], 6ul); break; case 11: NONFAILING(*(uint64_t*)0x20000800 = 0); NONFAILING(*(uint32_t*)0x20000808 = 0); NONFAILING(*(uint64_t*)0x20000810 = 0x200006c0); NONFAILING(*(uint64_t*)0x200006c0 = 0x20000f40); NONFAILING(*(uint64_t*)0x200006c8 = 0); NONFAILING(*(uint64_t*)0x200006d0 = 0x20000bc0); NONFAILING(memcpy( (void*)0x20000bc0, "\x17\x31\xec\xa5\x03\xd6\xbd\x4c\x15\xcd\xa1\x71\xaa\x8b\x3c\xf9\xba" "\xd4\x75\x5e\xc8\x91\xa8\xd1\x3e\x2b\x07\xd9\xda\x18\x3b\x9e\xb6\x79" "\x8d\x03\xfc\x01\x5b\x73\x33\x4c\xa5\x84\xac\xad\x87\x8e\xa1\xea\xd3" "\x02\x38\xe4\x40\xdf\x48\xab\xa5\x40\xcb\x1c\x47\x45\x42\x73\x92\xec" "\x36\x74\x83\x43\xba\x6e\x61\x04\xc4\xba\xa7\x11\xf7\x36\xfc\x82\xcd" "\x83\x4c\xbf\x5f\xf6\x8b\x1e\x43\xbf\xb0\xb6\xea\xfc\x82\x76\xef\x17" "\x11\x19\xdc\x71\xa1\xfa\x71\xf8\xbc\xb2\xc0\x9a\xd1\x17\xc0\x45\xbc" "\x63\x12\x71\x85\x8c\x33\x13\x7f\x62\xcb\x48\xba\xca\x44\xf3\xd8\xe1" "\xd4\xe3\x58\xae\x29\xbd\x96\xe0\xf4\xde\x67\x6a\x8e\x61\xd1\x57\x8c" "\x69\x5d\xd8\x94\x9e\x22\xac\x49\x96\x36\xf2\x49\x89\xa5\xef\x3a\xf1" "\xfa\x41\x39\x2b\x80\xc6\xaa\x15\x1e\x19\x79\x27\x07\xb5\x8e\x81\x52" "\x07\x1a\xa7\x03\xff", 192)); NONFAILING(*(uint64_t*)0x200006d8 = 0xc0); NONFAILING(*(uint64_t*)0x200006e0 = 0x20000cc0); NONFAILING(memcpy( (void*)0x20000cc0, "\x65\xf9\x44\xd4\xbc\xa8\xab\xf1\xf5\xea\xac\xe1\x61\xf1\xad\x93\x80" "\x7f\xb9\xd5\xb9\x53\x70\xb4\x61\xe5\xf7\xb2\x8c\x56\x39\xce\x73\x87" "\xdb\x59\xfb\x66\x6e\x8a\xd5\x83\x3d\x04\xbc\xef\x50\x33\x7a\xe4\x9a" "\xa3\xbc\x25\x52\x2b\x3f\xe4\x1b\xa3\x28\xf2\x47\x75\xef\xef\x1e\x08" "\xea\xf9\x66\x10\x36\x4a\x16\xf1\x46\x0a\x7c\x7f\xf4\x10\x0b\x87\x63" "\xed\x5f\xe5\x75\xf4\x1f\x48\xa5\x4b\xd6\xa5\x5c\x6d\x5e\x90\xb3\x2e" "\x25\x12\x93\x0b\x78\x6d\x5d\x50\x81\x87\xc7\x77\xb5\x96\x7a\x03\xbf" "\x9c\xb6\x70\x5b\x64\x0e\xca\x8d\x8c\x0b\x04\xda\x29\x77\x25\x46\x86" "\xe4\x87\x0e\xf7\x93\x23\x98\xe7\xd2\x38\x16\x07\x86\x80\xb9\xcb\x32" "\x40\x8f\x29\x25\x3e\x5a\xdb\x61\xa0\x71\xdd\x29\x41\xcd\x75\xf9\xa7" "\xca\x57\x2c\xed\x06", 175)); NONFAILING(*(uint64_t*)0x200006e8 = 0xaf); NONFAILING(*(uint64_t*)0x20000818 = 3); NONFAILING(*(uint64_t*)0x20000820 = 0x200004c0); NONFAILING(memcpy( (void*)0x200004c0, "\x20\x00\x00\x00\x00\x00\x00\x00\x01\x00\xc8\x00\x01\x00\x00\x00\xc1" "\xda\x65\xc4\xbc\x05\xc7\x18\x88\x95\x29\xe3\x7c\x89\x8a\x9a\x5d\x7c" "\x71\x6f\xe6\x46\x26\xeb\x4f\xdf\x67\x8f\x24\x6e\x29\x2c\xea\xd3\x6a" "\x1d\x94\xb6\xdd\x15\xfe\x27\xf6\x8b\xb5\x3f\xbf\xfc\x75\xb7\xac\x70" "\x88\x01\x00\x00\x00\x01\x00\x00\x00\x30\xa7\x4a\xb0\xb6\x96\xda\x81" "\x68\x55\x1a\xf2\xe4\x79\x10\xcc\x36\x5d\x59\x75\xcb\xfd\x4b\x7c\xa3" "\x72\x84\x9d\x58\xee\xb1\x74\x08\x97\x12\xe2\x93\xbd\x40", 116)); NONFAILING(sprintf((char*)0x20000534, "%023llo", (long long)r[2])); NONFAILING(*(uint32_t*)0x2000054b = -1); NONFAILING(*(uint16_t*)0x2000054f = -1); NONFAILING(*(uint64_t*)0x20000551 = -1); NONFAILING(memcpy( (void*)0x20000559, "\xdb\x13\x03\xc3\x01\xe9\xeb\x04\x5a\x7f\x18\x6f\xd1\x77\xe2\x10\xb5" "\x6b\x59\xe2\x12\x51\x5e\x12\x84\x26\x6f\xc7\x34\x22\xe0\xd9\xa2\xf0" "\xba\x74\x5c\x14\x25\x22\x0a\x47\x2d\x83\x2f\x8b\x6b\x14\x71\xd0\x78" "\x95\x01\x22\x8b\x23\x5a\x6c\x09\x31\xc6\x7a\xfa\xf8\x50\x30\xb7\x67" "\x0c\x8a\x76\x62\xf2\xc0\xfa\x93\x4d\x71\xd9\xd0\x57\x56\x36\x84\x76" "\x1c\xb4\x41\x1c\x75\x99\x29\x4b\x2d\xda\x78\x99\x7a\xfe\x82\xea\xbc" "\xc1\x89\x14\x9a\x55\xa6\x14\x0e\xec\xb4\x35\x57\x42\xd8\xe6\xef\xc1" "\xbd\x2b\x50\x45\xb2\x4e\x32\x6a\x83\x94\xa9\x6a\xa0\xba\xf6\x9a\x3e" "\x56\x65\xbc\x62\x69\x4c\xe5\xae\x3d\x5d\x8b\xa2\x30\x61\x93\x34\x1a" "\x5e\x90\x94\xfd\xad\x73\x11\x4c\x0e\xdb\xcb\x75\xd0\x30\xc7\xa9\xcb" "\x87\xe2\xc9\x78\xbc\x6c\xee\x40\x45\x03\x10\x34\x0a\x1d\x56\x1e\x1e" "\x20\xb3", 189)); NONFAILING(*(uint32_t*)0x20000616 = -1); NONFAILING(*(uint32_t*)0x2000061a = r[1]); NONFAILING(sprintf((char*)0x2000061e, "%020llu", (long long)-1)); NONFAILING(sprintf((char*)0x20000632, "%020llu", (long long)r[1])); NONFAILING(sprintf((char*)0x20000646, "%023llo", (long long)-1)); NONFAILING(*(uint64_t*)0x2000065d = -1); NONFAILING(*(uint64_t*)0x20000828 = 0x58); NONFAILING(*(uint32_t*)0x20000830 = 0); syscall(__NR_sendmsg, -1, 0x20000800ul, 0ul); { int i; for (i = 0; i < 32; i++) { syscall(__NR_sendmsg, -1, 0x20000800ul, 0ul); } } break; case 12: NONFAILING(*(uint64_t*)0x20000300 = 0x20000200); NONFAILING(*(uint16_t*)0x20000200 = 0x10); NONFAILING(*(uint16_t*)0x20000202 = 0); NONFAILING(*(uint32_t*)0x20000204 = 0); NONFAILING(*(uint32_t*)0x20000208 = 0x80000); NONFAILING(*(uint32_t*)0x20000308 = 0xc); NONFAILING(*(uint64_t*)0x20000310 = 0x200002c0); NONFAILING(*(uint64_t*)0x200002c0 = 0x20000240); NONFAILING(*(uint32_t*)0x20000240 = 0x64); NONFAILING(*(uint16_t*)0x20000244 = 0x14); NONFAILING(*(uint16_t*)0x20000246 = 0); NONFAILING(*(uint32_t*)0x20000248 = 0x70bd26); NONFAILING(*(uint32_t*)0x2000024c = 0x25dfdbfe); NONFAILING(*(uint8_t*)0x20000250 = 0xa); NONFAILING(*(uint8_t*)0x20000251 = 0x20); NONFAILING(*(uint8_t*)0x20000252 = 0xe); NONFAILING(*(uint8_t*)0x20000253 = 0xfe); NONFAILING(*(uint32_t*)0x20000254 = r[2]); NONFAILING(*(uint16_t*)0x20000258 = 8); NONFAILING(*(uint16_t*)0x2000025a = 0xa); NONFAILING(*(uint32_t*)0x2000025c = 4); NONFAILING(*(uint16_t*)0x20000260 = 8); NONFAILING(*(uint16_t*)0x20000262 = 0xa); NONFAILING(*(uint32_t*)0x20000264 = 1); NONFAILING(*(uint16_t*)0x20000268 = 0x14); NONFAILING(*(uint16_t*)0x2000026a = 1); NONFAILING(*(uint8_t*)0x2000026c = 0xfc); NONFAILING(*(uint8_t*)0x2000026d = 1); NONFAILING(memset((void*)0x2000026e, 0, 13)); NONFAILING(*(uint8_t*)0x2000027b = 0); NONFAILING(*(uint16_t*)0x2000027c = 0x14); NONFAILING(*(uint16_t*)0x2000027e = 2); NONFAILING(*(uint8_t*)0x20000280 = 0xfc); NONFAILING(*(uint8_t*)0x20000281 = 1); NONFAILING(memset((void*)0x20000282, 0, 13)); NONFAILING(*(uint8_t*)0x2000028f = 1); NONFAILING(*(uint16_t*)0x20000290 = 0x14); NONFAILING(*(uint16_t*)0x20000292 = 1); NONFAILING(memcpy( (void*)0x20000294, " \001\000\000\000\000\000\000\000\000\000\000\000\000\000\001", 16)); NONFAILING(*(uint64_t*)0x200002c8 = 0x64); NONFAILING(*(uint64_t*)0x20000318 = 1); NONFAILING(*(uint64_t*)0x20000320 = 0); NONFAILING(*(uint64_t*)0x20000328 = 0); NONFAILING(*(uint32_t*)0x20000330 = 0); syscall(__NR_sendmsg, -1, 0x20000300ul, 0x4048090ul); { int i; for (i = 0; i < 32; i++) { syscall(__NR_sendmsg, -1, 0x20000300ul, 0x4048090ul); } } break; case 13: NONFAILING(memcpy((void*)0x20000040, "./file0\000", 8)); syscall(__NR_creat, 0x20000040ul, 0x140ul); break; case 14: NONFAILING(*(uint64_t*)0x20000180 = 0x20000080); NONFAILING(*(uint16_t*)0x20000080 = 0x10); NONFAILING(*(uint16_t*)0x20000082 = 0); NONFAILING(*(uint32_t*)0x20000084 = 0); NONFAILING(*(uint32_t*)0x20000088 = 0x3002); NONFAILING(*(uint32_t*)0x20000188 = 0xc); NONFAILING(*(uint64_t*)0x20000190 = 0x20000100); NONFAILING(*(uint64_t*)0x20000100 = 0x200000c0); NONFAILING(*(uint32_t*)0x200000c0 = 0x1c); NONFAILING(*(uint16_t*)0x200000c4 = 0x140f); NONFAILING(*(uint16_t*)0x200000c6 = 0x800); NONFAILING(*(uint32_t*)0x200000c8 = 0); NONFAILING(*(uint32_t*)0x200000cc = 0x25dfdbfb); NONFAILING(*(uint16_t*)0x200000d0 = 0xb); NONFAILING(*(uint16_t*)0x200000d2 = 0x45); NONFAILING(memcpy((void*)0x200000d4, "uverbs\000", 7)); NONFAILING(*(uint64_t*)0x20000108 = 0x1c); NONFAILING(*(uint64_t*)0x20000198 = 1); NONFAILING(*(uint64_t*)0x200001a0 = 0); NONFAILING(*(uint64_t*)0x200001a8 = 0); NONFAILING(*(uint32_t*)0x200001b0 = 0x8000); syscall(__NR_sendmsg, -1, 0x20000180ul, 0x44800ul); break; case 15: NONFAILING(*(uint64_t*)0x20000140 = 0); NONFAILING(*(uint32_t*)0x20000148 = 0); NONFAILING(*(uint64_t*)0x20000150 = 0x200001c0); NONFAILING(*(uint64_t*)0x200001c0 = 0x20000000); NONFAILING(memcpy((void*)0x20000000, "\x40\x00\x00\x00\x10\x00\x01\x04\x00\x00\x00\x00\x00\xdd" "\x00\x00\x00\x00\x00\x00", 20)); NONFAILING(*(uint32_t*)0x20000014 = 0); NONFAILING(*(uint64_t*)0x200001c8 = 0x40); NONFAILING(*(uint64_t*)0x20000158 = 1); NONFAILING(*(uint64_t*)0x20000160 = 0); NONFAILING(*(uint64_t*)0x20000168 = 0); NONFAILING(*(uint32_t*)0x20000170 = 0); syscall(__NR_sendmsg, r[0], 0x20000140ul, 0ul); break; case 16: NONFAILING(*(uint32_t*)0x20000840 = 4); NONFAILING(*(uint32_t*)0x20000844 = 0x80); NONFAILING(*(uint8_t*)0x20000848 = 0x61); NONFAILING(*(uint8_t*)0x20000849 = 0); NONFAILING(*(uint8_t*)0x2000084a = 7); NONFAILING(*(uint8_t*)0x2000084b = 8); NONFAILING(*(uint32_t*)0x2000084c = 0); NONFAILING(*(uint64_t*)0x20000850 = 0x16); NONFAILING(*(uint64_t*)0x20000858 = 0x10000); NONFAILING(*(uint64_t*)0x20000860 = 1); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000868, 0, 0, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000868, 1, 1, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000868, 0, 2, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000868, 0, 3, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000868, 1, 4, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000868, 1, 5, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000868, 1, 6, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000868, 1, 7, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000868, 1, 8, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000868, 0, 9, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000868, 0, 10, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000868, 1, 11, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000868, 1, 12, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000868, 0, 13, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000868, 1, 14, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000868, 1, 15, 2)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000868, 0, 17, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000868, 1, 18, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000868, 1, 19, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000868, 0, 20, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000868, 1, 21, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000868, 1, 22, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000868, 0, 23, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000868, 1, 24, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000868, 1, 25, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000868, 1, 26, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000868, 1, 27, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000868, 1, 28, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000868, 1, 29, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000868, 1, 30, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000868, 0, 31, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000868, 0, 32, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000868, 1, 33, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000868, 1, 34, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000868, 0, 35, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000868, 1, 36, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000868, 1, 37, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x20000868, 0, 38, 26)); NONFAILING(*(uint32_t*)0x20000870 = 9); NONFAILING(*(uint32_t*)0x20000874 = 1); NONFAILING(*(uint64_t*)0x20000878 = 0x20000400); NONFAILING(*(uint64_t*)0x20000880 = 8); NONFAILING(*(uint64_t*)0x20000888 = 0x12420); NONFAILING(*(uint64_t*)0x20000890 = 0x80); NONFAILING(*(uint32_t*)0x20000898 = 4); NONFAILING(*(uint32_t*)0x2000089c = 3); NONFAILING(*(uint64_t*)0x200008a0 = 5); NONFAILING(*(uint32_t*)0x200008a8 = 0); NONFAILING(*(uint16_t*)0x200008ac = 7); NONFAILING(*(uint16_t*)0x200008ae = 0); NONFAILING(*(uint32_t*)0x200008b0 = 2); NONFAILING(*(uint32_t*)0x200008b4 = 0); NONFAILING(*(uint64_t*)0x200008b8 = 0x6f555eb7); syscall(__NR_perf_event_open, 0x20000840ul, -1, 0xeul, r[3], 8ul); break; } } int main(void) { syscall(__NR_mmap, 0x1ffff000ul, 0x1000ul, 0ul, 0x32ul, -1, 0ul); syscall(__NR_mmap, 0x20000000ul, 0x1000000ul, 7ul, 0x32ul, -1, 0ul); syscall(__NR_mmap, 0x21000000ul, 0x1000ul, 0ul, 0x32ul, -1, 0ul); setup_sysctl(); setup_cgroups(); setup_binfmt_misc(); setup_802154(); install_segv_handler(); for (procid = 0; procid < 6; procid++) { if (fork() == 0) { use_temporary_dir(); do_sandbox_none(); } } sleep(1000000); return 0; }