github.com/google/syzkaller@v0.0.0-20240517125934-c0f1611a36d6/sys/linux/socket_inet_l2tp.txt (about) 1 # Copyright 2019 syzkaller project authors. All rights reserved. 2 # Use of this source code is governed by Apache 2 LICENSE that can be found in the LICENSE file. 3 4 include <linux/net.h> 5 include <uapi/linux/netlink.h> 6 include <uapi/linux/genetlink.h> 7 include <uapi/linux/l2tp.h> 8 9 resource sock_l2tp[sock_in] 10 resource sock_l2tp6[sock_in6] 11 12 type l2tp_conn_id int32[0:4] 13 14 socket$l2tp(domain const[AF_INET], type const[SOCK_DGRAM], proto const[IPPROTO_L2TP]) sock_l2tp 15 bind$l2tp(fd sock_l2tp, addr ptr[in, sockaddr_l2tpip], addrlen len[addr]) 16 connect$l2tp(fd sock_l2tp, addr ptr[in, sockaddr_l2tpip], addrlen len[addr]) 17 sendto$l2tp(fd sock_l2tp, buf ptr[in, array[int8]], len bytesize[buf], f flags[send_flags], addr ptr[in, sockaddr_l2tpip, opt], addrlen len[addr]) 18 recvfrom$l2tp(fd sock_l2tp, buf ptr[out, array[int8]], len bytesize[buf], f flags[recv_flags], addr ptr[out, sockaddr_l2tpip, opt], addrlen len[addr]) 19 getsockname$l2tp(fd sock_l2tp, addr ptr[out, sockaddr_l2tpip], addrlen ptr[inout, len[addr, int32]]) 20 getpeername$l2tp(fd sock_l2tp, peer ptr[out, sockaddr_l2tpip], peerlen ptr[inout, len[peer, int32]]) 21 22 socket$l2tp6(domain const[AF_INET6], type const[SOCK_DGRAM], proto const[IPPROTO_L2TP]) sock_l2tp6 23 bind$l2tp6(fd sock_l2tp6, addr ptr[in, sockaddr_l2tpip6], addrlen len[addr]) 24 connect$l2tp6(fd sock_l2tp6, addr ptr[in, sockaddr_l2tpip6], addrlen len[addr]) 25 sendto$l2tp6(fd sock_l2tp6, buf ptr[in, array[int8]], len bytesize[buf], f flags[send_flags], addr ptr[in, sockaddr_l2tpip6, opt], addrlen len[addr]) 26 recvfrom$l2tp6(fd sock_l2tp6, buf ptr[out, array[int8]], len bytesize[buf], f flags[recv_flags], addr ptr[out, sockaddr_l2tpip6, opt], addrlen len[addr]) 27 getsockname$l2tp6(fd sock_l2tp6, addr ptr[out, sockaddr_l2tpip6], addrlen ptr[inout, len[addr, int32]]) 28 getpeername$l2tp6(fd sock_l2tp6, peer ptr[out, sockaddr_l2tpip6], peerlen ptr[inout, len[peer, int32]]) 29 30 sockaddr_l2tpip { 31 l2tp_family const[AF_INET, int16] 32 l2tp_unused const[0, int16] 33 l2tp_addr ipv4_addr 34 l2tp_conn_id l2tp_conn_id 35 __pad const[0, int32] 36 } 37 38 sockaddr_l2tpip6 { 39 l2tp_family const[AF_INET6, int16] 40 l2tp_unused const[0, int16] 41 l2tp_flowinfo int32be 42 l2tp_addr ipv6_addr 43 l2tp_scope_id int32 44 l2tp_conn_id l2tp_conn_id 45 } 46 47 resource genl_l2tp_family_id[int16] 48 type msghdr_nl_l2tp[CMD] msghdr_netlink[netlink_msg_t[genl_l2tp_family_id, genlmsghdr_t[CMD], l2tp_nl_policy]] 49 50 syz_genetlink_get_family_id$l2tp(name ptr[in, string["l2tp"]], fd sock_nl_generic) genl_l2tp_family_id 51 52 sendmsg$L2TP_CMD_NOOP(fd sock_nl_generic, msg ptr[in, msghdr_nl_l2tp[L2TP_CMD_NOOP]], f flags[send_flags]) 53 sendmsg$L2TP_CMD_TUNNEL_CREATE(fd sock_nl_generic, msg ptr[in, msghdr_nl_l2tp[L2TP_CMD_TUNNEL_CREATE]], f flags[send_flags]) 54 sendmsg$L2TP_CMD_TUNNEL_DELETE(fd sock_nl_generic, msg ptr[in, msghdr_nl_l2tp[L2TP_CMD_TUNNEL_DELETE]], f flags[send_flags]) 55 sendmsg$L2TP_CMD_TUNNEL_MODIFY(fd sock_nl_generic, msg ptr[in, msghdr_nl_l2tp[L2TP_CMD_TUNNEL_MODIFY]], f flags[send_flags]) 56 sendmsg$L2TP_CMD_TUNNEL_GET(fd sock_nl_generic, msg ptr[in, msghdr_nl_l2tp[L2TP_CMD_TUNNEL_GET]], f flags[send_flags]) 57 sendmsg$L2TP_CMD_SESSION_CREATE(fd sock_nl_generic, msg ptr[in, msghdr_nl_l2tp[L2TP_CMD_SESSION_CREATE]], f flags[send_flags]) 58 sendmsg$L2TP_CMD_SESSION_DELETE(fd sock_nl_generic, msg ptr[in, msghdr_nl_l2tp[L2TP_CMD_SESSION_DELETE]], f flags[send_flags]) 59 sendmsg$L2TP_CMD_SESSION_MODIFY(fd sock_nl_generic, msg ptr[in, msghdr_nl_l2tp[L2TP_CMD_SESSION_MODIFY]], f flags[send_flags]) 60 sendmsg$L2TP_CMD_SESSION_GET(fd sock_nl_generic, msg ptr[in, msghdr_nl_l2tp[L2TP_CMD_SESSION_GET]], f flags[send_flags]) 61 62 l2tp_nl_policy [ 63 L2TP_ATTR_PW_TYPE nlattr[L2TP_ATTR_PW_TYPE, flags[l2tp_pwtype, int16]] 64 L2TP_ATTR_ENCAP_TYPE nlattr[L2TP_ATTR_ENCAP_TYPE, flags[l2tp_encap_type, int16]] 65 L2TP_ATTR_OFFSET nlattr[L2TP_ATTR_OFFSET, int16] 66 L2TP_ATTR_DATA_SEQ nlattr[L2TP_ATTR_DATA_SEQ, int8] 67 L2TP_ATTR_L2SPEC_TYPE nlattr[L2TP_ATTR_L2SPEC_TYPE, flags[l2tp_l2spec_type, int8]] 68 L2TP_ATTR_L2SPEC_LEN nlattr[L2TP_ATTR_L2SPEC_LEN, int8] 69 L2TP_ATTR_PROTO_VERSION nlattr[L2TP_ATTR_PROTO_VERSION, int8[2:3]] 70 L2TP_ATTR_CONN_ID nlattr[L2TP_ATTR_CONN_ID, l2tp_conn_id] 71 L2TP_ATTR_PEER_CONN_ID nlattr[L2TP_ATTR_PEER_CONN_ID, l2tp_conn_id] 72 L2TP_ATTR_SESSION_ID nlattr[L2TP_ATTR_SESSION_ID, l2tp_session[int32]] 73 L2TP_ATTR_PEER_SESSION_ID nlattr[L2TP_ATTR_PEER_SESSION_ID, l2tp_session[int32]] 74 L2TP_ATTR_UDP_CSUM nlattr[L2TP_ATTR_UDP_CSUM, bool8] 75 # TODO: what is this vlan id? It sure needs to match something somewhere. Is it a confused name for vlan tag?... 76 L2TP_ATTR_VLAN_ID nlattr[L2TP_ATTR_VLAN_ID, int16] 77 L2TP_ATTR_DEBUG nlattr[L2TP_ATTR_DEBUG, bool32] 78 L2TP_ATTR_RECV_SEQ nlattr[L2TP_ATTR_RECV_SEQ, int8] 79 L2TP_ATTR_SEND_SEQ nlattr[L2TP_ATTR_SEND_SEQ, int8] 80 L2TP_ATTR_LNS_MODE nlattr[L2TP_ATTR_LNS_MODE, int8] 81 # L2TP_ATTR_USING_IPSEC is output 82 L2TP_ATTR_RECV_TIMEOUT nlattr[L2TP_ATTR_RECV_TIMEOUT, int64] 83 L2TP_ATTR_FD nlattr[L2TP_ATTR_FD, l2tp_tunnel_fd] 84 L2TP_ATTR_IP_SADDR nlattr[L2TP_ATTR_IP_SADDR, ipv4_addr] 85 L2TP_ATTR_IP_DADDR nlattr[L2TP_ATTR_IP_DADDR, ipv4_addr] 86 L2TP_ATTR_UDP_SPORT nlattr[L2TP_ATTR_UDP_SPORT, sock_port] 87 L2TP_ATTR_UDP_DPORT nlattr[L2TP_ATTR_UDP_DPORT, sock_port] 88 L2TP_ATTR_MTU nlattr[L2TP_ATTR_MTU, int16] 89 L2TP_ATTR_MRU nlattr[L2TP_ATTR_MRU, int16] 90 # L2TP_ATTR_STATS is output 91 L2TP_ATTR_IP6_SADDR nlattr[L2TP_ATTR_IP6_SADDR, ipv6_addr] 92 L2TP_ATTR_IP6_DADDR nlattr[L2TP_ATTR_IP6_DADDR, ipv6_addr] 93 L2TP_ATTR_IFNAME nlattr[L2TP_ATTR_IFNAME, devname] 94 L2TP_ATTR_COOKIE nlattr[L2TP_ATTR_COOKIE, int64] 95 L2TP_ATTR_PEER_COOKIE nlattr[L2TP_ATTR_PEER_COOKIE, int64] 96 L2TP_ATTR_UDP_ZERO_CSUM6_TX nlattr[L2TP_ATTR_UDP_ZERO_CSUM6_TX, bool8] 97 L2TP_ATTR_UDP_ZERO_CSUM6_RX nlattr[L2TP_ATTR_UDP_ZERO_CSUM6_RX, bool8] 98 # L2TP_ATTR_PAD is output 99 ] [varlen] 100 101 l2tp_tunnel_fd [ 102 udp sock_udp 103 udp6 sock_udp6 104 l2tp sock_l2tp 105 l2tp6 sock_l2tp6 106 ] 107 108 l2tp_pwtype = L2TP_PWTYPE_NONE, L2TP_PWTYPE_ETH_VLAN, L2TP_PWTYPE_ETH, L2TP_PWTYPE_PPP, L2TP_PWTYPE_PPP_AC, L2TP_PWTYPE_IP 109 l2tp_l2spec_type = L2TP_L2SPECTYPE_NONE, L2TP_L2SPECTYPE_DEFAULT 110 l2tp_encap_type = L2TP_ENCAPTYPE_UDP, L2TP_ENCAPTYPE_IP