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IABSD.fr/src/sys/net/pipex.h
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- sys/net/pipex.h
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/* $OpenBSD: pipex.h,v 1.31 2022/01/02 22:36:04 jsg Exp $ */ /* * Copyright (c) 2009 Internet Initiative Japan Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #ifndef NET_PIPEX_H #define NET_PIPEX_H 1 /* * Names for pipex sysctl objects */ #define PIPEXCTL_ENABLE 1 #define PIPEXCTL_MAXID 2 #define PIPEXCTL_NAMES { \ { 0, 0 }, \ { "enable", CTLTYPE_INT }, \ } #define PIPEX_PROTO_L2TP 1 /* protocol L2TP */ #define PIPEX_PROTO_PPTP 2 /* protocol PPTP */ #define PIPEX_PROTO_PPPOE 3 /* protocol PPPoE */ #define PIPEX_MAX_LISTREQ 128 /* list request size */ #define PIPEX_MPPE_KEYLEN 16 /* pipex_mppe */ struct pipex_mppe_req { int16_t stateless; /* mppe key mode. 1 for stateless */ int16_t keylenbits; /* mppe key length(in bits)*/ u_char master_key[PIPEX_MPPE_KEYLEN]; /* mppe master key */ }; /* pipex statistics */ struct pipex_statistics { uint32_t ipackets; /* packets received from tunnel */ uint32_t ierrors; /* error packets received from tunnel */ uint64_t ibytes; /* number of received bytes from tunnel */ uint32_t opackets; /* packets sent to tunnel */ uint32_t oerrors; /* error packets on sending to tunnel */ uint64_t obytes; /* number of sent bytes to tunnel */ uint32_t idle_time; /* idle time in seconds */ }; struct pipex_session_req { int pr_protocol; /* tunnel protocol */ /* u_int pr_rdomain; */ /* rdomain id */ uint16_t pr_session_id; /* session-id */ uint16_t pr_peer_session_id; /* peer's session-id */ uint32_t pr_ppp_flags; /* PPP configuration flags */ #define PIPEX_PPP_ACFC_ACCEPTED 0x0001 /* ACFC accepted */ #define PIPEX_PPP_PFC_ACCEPTED 0x0002 /* PFC accepted */ #define PIPEX_PPP_ACFC_ENABLED 0x0004 /* ACFC enabled */ #define PIPEX_PPP_PFC_ENABLED 0x0008 /* PFC enabled */ #define PIPEX_PPP_MPPE_ACCEPTED 0x0010 /* MPPE accepted */ #define PIPEX_PPP_MPPE_ENABLED 0x0020 /* MPPE enabled */ #define PIPEX_PPP_MPPE_REQUIRED 0x0040 /* MPPE is required */ #define PIPEX_PPP_HAS_ACF 0x0080 /* has ACF */ #define PIPEX_PPP_ADJUST_TCPMSS 0x0100 /* do tcpmss adjustment */ #define PIPEX_PPP_INGRESS_FILTER 0x0200 /* do ingress filter */ int8_t pr_ccp_id; /* CCP current packet id */ int pr_ppp_id; /* PPP Id. */ uint16_t pr_peer_mru; /* Peer's MRU */ uint32_t pr_timeout_sec; /* Idle Timer */ struct in_addr pr_ip_srcaddr; /* local framed IP-Address */ struct in_addr pr_ip_address; /* framed IP-Address */ struct in_addr pr_ip_netmask; /* framed IP-Netmask */ struct sockaddr_in6 pr_ip6_address; /* framed IPv6-Address */ int pr_ip6_prefixlen; /* framed IPv6-Prefixlen */ union { struct { uint32_t snd_nxt; /* send next */ uint32_t rcv_nxt; /* receive next */ uint32_t snd_una; /* unacked */ uint32_t rcv_acked; /* recv acked */ int winsz; /* window size */ int maxwinsz; /* max window size */ int peer_maxwinsz; /* peer's max window size */ } pptp; struct { uint32_t option_flags; #define PIPEX_L2TP_USE_SEQUENCING 0x00000001 uint16_t tunnel_id; /* our tunnel-id */ uint16_t peer_tunnel_id;/* peer's tunnel-id */ uint32_t ns_nxt; /* send next */ uint32_t nr_nxt; /* receive next */ uint32_t ns_una; /* unacked */ uint32_t nr_acked; /* recv acked */ uint32_t ipsecflowinfo; /* IPsec flow id for NAT-T */ } l2tp; struct { char over_ifname[IF_NAMESIZE]; /* ethernet ifname */ } pppoe; } pr_proto; struct sockaddr_storage pr_peer_address; /* peer address of tunnel */ struct sockaddr_storage pr_local_address; /* our address of tunnel */ struct pipex_mppe_req pr_mppe_recv; /* mppe key for receive */ struct pipex_mppe_req pr_mppe_send; /* mppe key for send */ }; struct pipex_session_stat_req { int psr_protocol; /* tunnel protocol */ uint16_t psr_session_id; /* session-id */ struct pipex_statistics psr_stat; /* statistics */ }; struct pipex_session_close_req { int psr_protocol; /* tunnel protocol */ uint16_t psr_session_id; /* session-id */ struct pipex_statistics psr_stat; /* statistics */ }; #define pcr_protocol psr_protocol #define pcr_session_id psr_session_id #define pcr_stat psr_stat struct pipex_session_list_req { uint8_t plr_flags; #define PIPEX_LISTREQ_MORE 0x01 int plr_ppp_id_count; /* count of PPP id */ int plr_ppp_id[PIPEX_MAX_LISTREQ]; /* PPP id */ }; struct pipex_session_config_req { int pcr_protocol; /* tunnel protocol */ uint16_t pcr_session_id; /* session-id */ int pcr_ip_forward; /* ip_forwarding on/off */ }; /* for pppx(4) */ struct pppx_hdr { u_int32_t pppx_proto; /* write: protocol in PIPEX_PROTO_ */ u_int32_t pppx_id; /* write: session_id, read: ppp_id */ }; struct pipex_session_descr_req { int pdr_protocol; /* tunnel protocol */ uint16_t pdr_session_id; /* session-id */ char pdr_descr[IFDESCRSIZE]; /* description */ }; /* PIPEX ioctls */ #define PIPEXASESSION _IOW ('p', 3, struct pipex_session_req) #define PIPEXDSESSION _IOWR('p', 4, struct pipex_session_close_req) #define PIPEXCSESSION _IOW ('p', 5, struct pipex_session_config_req) #define PIPEXGSTAT _IOWR('p', 6, struct pipex_session_stat_req) #define PIPEXGCLOSED _IOR ('p', 7, struct pipex_session_list_req) #define PIPEXSIFDESCR _IOW ('p', 8, struct pipex_session_descr_req) #ifdef _KERNEL extern int pipex_enable; struct pipex_session; __BEGIN_DECLS void pipex_init (void); struct pipex_session *pipex_pppoe_lookup_session (struct mbuf *); struct mbuf *pipex_pppoe_input (struct mbuf *, struct pipex_session *); struct pipex_session *pipex_pptp_lookup_session (struct mbuf *); struct mbuf *pipex_pptp_input (struct mbuf *, struct pipex_session *); struct pipex_session *pipex_pptp_userland_lookup_session_ipv4 (struct mbuf *, struct in_addr); struct pipex_session *pipex_pptp_userland_lookup_session_ipv6 (struct mbuf *, struct in6_addr); struct pipex_session *pipex_l2tp_userland_lookup_session(struct mbuf *, struct sockaddr *); struct mbuf *pipex_pptp_userland_output (struct mbuf *, struct pipex_session *); struct pipex_session *pipex_l2tp_lookup_session (struct mbuf *, int); struct mbuf *pipex_l2tp_input (struct mbuf *, int off, struct pipex_session *, uint32_t); struct pipex_session *pipex_l2tp_userland_lookup_session_ipv4 (struct mbuf *, struct in_addr); struct pipex_session *pipex_l2tp_userland_lookup_session_ipv6 (struct mbuf *, struct in6_addr); struct mbuf *pipex_l2tp_userland_output (struct mbuf *, struct pipex_session *); int pipex_ioctl (void *, u_long, caddr_t); void pipex_session_init_mppe_recv(struct pipex_session *, int, int, u_char *); void pipex_session_init_mppe_send(struct pipex_session *, int, int, u_char *); __END_DECLS #endif /* _KERNEL */ #endif