| # Copyright 2015 syzkaller project authors. All rights reserved. |
| # Use of this source code is governed by Apache 2 LICENSE that can be found in the LICENSE file. |
| |
| include <linux/if_tun.h> |
| include <linux/virtio_net.h> |
| include <uapi/linux/if_arp.h> |
| |
| resource fd_tun[fd] |
| |
| openat$tun(fd const[AT_FDCWD], file ptr[in, string["/dev/net/tun"]], flags flags[open_flags], mode const[0]) fd_tun |
| write$tun(fd fd_tun, buf ptr[in, tun_buffer], count len[buf]) |
| ioctl$TUNGETFEATURES(fd fd_tun, cmd const[TUNGETFEATURES], arg ptr[out, int32]) |
| ioctl$TUNSETQUEUE(fd fd_tun, cmd const[TUNSETQUEUE], arg ptr[in, ifreq_t[flags[tun_queue_flags, int16]]]) |
| ioctl$TUNSETIFF(fd fd_tun, cmd const[TUNSETIFF], arg ptr[in, ifreq_t[flags[tun_setiff_flags, int16]]]) |
| ioctl$TUNSETIFINDEX(fd fd_tun, cmd const[TUNSETIFINDEX], arg ptr[in, ifindex]) |
| ioctl$TUNGETIFF(fd fd_tun, cmd const[TUNGETIFF], arg ptr[out, ifreq_t[void]]) |
| ioctl$TUNSETNOCSUM(fd fd_tun, cmd const[TUNSETNOCSUM], arg bool32) |
| ioctl$TUNSETPERSIST(fd fd_tun, cmd const[TUNSETPERSIST], arg bool32) |
| ioctl$TUNSETOWNER(fd fd_tun, cmd const[TUNSETOWNER], arg uid) |
| ioctl$TUNSETGROUP(fd fd_tun, cmd const[TUNSETGROUP], arg gid) |
| ioctl$TUNSETLINK(fd fd_tun, cmd const[TUNSETLINK], arg flags[dev_type_arphdr]) |
| ioctl$TUNSETOFFLOAD(fd fd_tun, cmd const[TUNSETOFFLOAD], arg flags[tun_offload_flags]) |
| ioctl$TUNSETTXFILTER(fd fd_tun, cmd const[TUNSETTXFILTER], arg ptr[in, tun_filter]) |
| ioctl$SIOCGIFHWADDR(fd fd_tun, cmd const[SIOCGIFHWADDR], arg ptr[out, ifreq_t[void]]) |
| ioctl$SIOCSIFHWADDR(fd fd_tun, cmd const[SIOCSIFHWADDR], arg ptr[in, ifreq_t[mac_addr]]) |
| ioctl$TUNGETSNDBUF(fd fd_tun, cmd const[TUNGETSNDBUF], arg ptr[out, int32]) |
| ioctl$TUNSETSNDBUF(fd fd_tun, cmd const[TUNSETSNDBUF], arg ptr[in, int32]) |
| ioctl$TUNGETVNETHDRSZ(fd fd_tun, cmd const[TUNGETVNETHDRSZ], arg ptr[out, int32]) |
| ioctl$TUNSETVNETHDRSZ(fd fd_tun, cmd const[TUNSETVNETHDRSZ], arg ptr[in, int32]) |
| ioctl$TUNATTACHFILTER(fd fd_tun, cmd const[TUNATTACHFILTER], arg ptr[in, sock_fprog]) |
| ioctl$TUNDETACHFILTER(fd fd_tun, cmd const[TUNDETACHFILTER], arg const[0]) |
| ioctl$TUNGETFILTER(fd fd_tun, cmd const[TUNGETFILTER], arg buffer[out]) |
| ioctl$TUNSETSTEERINGEBPF(fd fd_tun, cmd const[TUNSETSTEERINGEBPF], arg ptr[in, fd_bpf_prog]) |
| ioctl$TUNSETFILTEREBPF(fd fd_tun, cmd const[TUNSETFILTEREBPF], arg ptr[in, fd_bpf_prog]) |
| ioctl$TUNSETVNETLE(fd fd_tun, cmd const[TUNSETVNETLE], arg ptr[in, bool32]) |
| ioctl$TUNSETVNETBE(fd fd_tun, cmd const[TUNSETVNETBE], arg ptr[in, bool32]) |
| |
| # There are 4 combinations of tun packets: |
| # tun_pi can be present or missing (depending on !IFF_NO_PI), |
| # virtio_net_hdr can be present or missing (depending on IFF_VNET_HDR). |
| # We may want to support optional fields, which will make this simpler. |
| tun_buffer { |
| pi optional[tun_pi] |
| hdr optional[virtio_net_hdr] |
| data tun_payload |
| } [packed] |
| |
| tun_pi { |
| flags const[0, int16] |
| proto flags[ether_types, int16be] |
| } |
| |
| virtio_net_hdr { |
| flags flags[virtio_net_flags, int8] |
| gsotype flags[virtio_net_types, int8] |
| hdrlen int16 |
| gsosize int16 |
| start int16 |
| offset int16 |
| } |
| |
| tun_payload [ |
| eth eth_packet |
| ipv4 ipv4_packet |
| ipv6 ipv6_packet |
| arp arp_packet |
| llc llc_packet |
| ipx ipx_packet |
| x25 x25_packet |
| mpls mpls_packet |
| ] [varlen] |
| |
| tun_filter { |
| flags flags[tun_filter_flags, int16] |
| count len[addr, int16] |
| addr array[mac_addr] |
| } |
| |
| tun_filter_flags = TUN_FLT_ALLMULTI |
| virtio_net_flags = VIRTIO_NET_HDR_F_NEEDS_CSUM, VIRTIO_NET_HDR_F_DATA_VALID |
| virtio_net_types = VIRTIO_NET_HDR_GSO_NONE, VIRTIO_NET_HDR_GSO_TCPV4, VIRTIO_NET_HDR_GSO_UDP, VIRTIO_NET_HDR_GSO_TCPV6, VIRTIO_NET_HDR_GSO_ECN |
| tun_offload_flags = TUN_F_CSUM, TUN_F_TSO4, TUN_F_TSO6, TUN_F_TSO_ECN, TUN_F_UFO |
| tun_setiff_flags = IFF_TUN, IFF_TAP, IFF_NAPI, IFF_NAPI_FRAGS, IFF_NO_PI, IFF_ONE_QUEUE, IFF_VNET_HDR, IFF_TUN_EXCL, IFF_MULTI_QUEUE, IFF_ATTACH_QUEUE, IFF_DETACH_QUEUE, IFF_PERSIST, IFF_NOFILTER |
| tun_queue_flags = IFF_ATTACH_QUEUE, IFF_DETACH_QUEUE |
| dev_type_arphdr = ARPHRD_NETROM, ARPHRD_ETHER, ARPHRD_EETHER, ARPHRD_AX25, ARPHRD_PRONET, ARPHRD_CHAOS, ARPHRD_IEEE802, ARPHRD_ARCNET, ARPHRD_APPLETLK, ARPHRD_DLCI, ARPHRD_ATM, ARPHRD_METRICOM, ARPHRD_IEEE1394, ARPHRD_EUI64, ARPHRD_INFINIBAND, ARPHRD_SLIP, ARPHRD_CSLIP, ARPHRD_SLIP6, ARPHRD_CSLIP6, ARPHRD_RSRVD, ARPHRD_ADAPT, ARPHRD_ROSE, ARPHRD_X25, ARPHRD_HWX25, ARPHRD_CAN, ARPHRD_PPP, ARPHRD_CISCO, ARPHRD_HDLC, ARPHRD_LAPB, ARPHRD_DDCMP, ARPHRD_RAWHDLC, ARPHRD_RAWIP, ARPHRD_TUNNEL, ARPHRD_TUNNEL6, ARPHRD_FRAD, ARPHRD_SKIP, ARPHRD_LOOPBACK, ARPHRD_LOCALTLK, ARPHRD_FDDI, ARPHRD_BIF, ARPHRD_SIT, ARPHRD_IPDDP, ARPHRD_IPGRE, ARPHRD_PIMREG, ARPHRD_HIPPI, ARPHRD_ASH, ARPHRD_ECONET, ARPHRD_IRDA, ARPHRD_FCPP, ARPHRD_FCAL, ARPHRD_FCPL, ARPHRD_FCFABRIC, ARPHRD_IEEE802_TR, ARPHRD_IEEE80211, ARPHRD_IEEE80211_PRISM, ARPHRD_IEEE80211_RADIOTAP, ARPHRD_IEEE802154, ARPHRD_IEEE802154_MONITOR, ARPHRD_PHONET, ARPHRD_PHONET_PIPE, ARPHRD_CAIF, ARPHRD_IP6GRE, ARPHRD_NETLINK, ARPHRD_6LOWPAN, ARPHRD_VSOCKMON, ARPHRD_VOID, ARPHRD_NONE |