Initial import PIPEX. PIPEX(Pppac IP EXtension) is a IP forwarding

acceleration for PPP access concentrator.

ok mcbride@ dlg@ deraadt@ reyk@.

1 files changed, 166 insertions, 0 deletions

diff --git a/sys/net/pipex.h b/sys/net/pipex.h
new file mode 100644
index 00000000000..97d83126e02
--- /dev/null
+++ b/sys/net/pipex.h
@@ -0,0 +1,166 @@
+/*	$Id: pipex.h,v 1.1 2010/01/11 03:50:56 yasuoka 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
+
+#define PIPEX_ENABLE			1
+#define PIPEX_DISABLE			0
+
+#define PIPEX_PROTO_PPPOE		0x8864	/* protocol pppoe */
+#define PIPEX_PROTO_PPTP		0x880b	/* protocol pptp */
+#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 */
+	int16_t	keylenbits;			/* mppe key length(in bits)*/
+	u_char	master_key[PIPEX_MPPE_KEYLEN];	/* mppe mastter key */
+};
+
+/* pppac ip-extension forwarded statistics */
+struct pipex_statistics {
+	uint32_t ipackets;			/* tunnel to network */
+	uint32_t ierrors;			/* tunnel to network */
+	uint64_t ibytes;			/* tunnel to network */
+	uint32_t opackets;			/* network to tunnel */
+	uint32_t oerrors;			/* network to tunnel */
+	uint64_t obytes;			/* network to tunnel */
+
+	uint32_t idle_time;			/* idle timer */
+};
+
+struct pipex_session_req {
+	int		pr_protocol;		/* tunnel protocol  */
+	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		0x00000001
+#define	PIPEX_PPP_PFC_ACCEPTED		0x00000002
+#define	PIPEX_PPP_ACFC_ENABLED		0x00000004
+#define	PIPEX_PPP_PFC_ENABLED		0x00000008
+#define	PIPEX_PPP_MPPE_ACCEPTED		0x00000010
+#define	PIPEX_PPP_MPPE_ENABLED		0x00000020
+#define	PIPEX_PPP_MPPE_REQUIRED		0x00000040
+#define	PIPEX_PPP_HAS_ACF		0x00000080
+#define	PIPEX_PPP_ADJUST_TCPMSS		0x00000100
+	int8_t		pr_ccp_id;		/* CCP current packet id */
+	int		pr_ppp_id;		/* PPP Id. */
+	uint16_t	pr_peer_mru; 		/* Peer's MRU */
+	uint16_t	pr_timeout_sec; 	/* Idle Timer */
+
+	struct in_addr	pr_ip_address;		/* framed IP-Address */
+	struct in_addr	pr_ip_netmask;		/* framed IP-Netmask */
+	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 */
+			struct in_addr peer_address;	/* peer's IP address */
+			struct in_addr our_address;	/* our IP address */
+		} pptp;
+		struct {
+			char over_ifname[IF_NAMESIZE]; 	/* ethernet i/f name */
+			struct ether_addr peer_address;/* peer's ether address*/
+		} pppoe;
+	} pr_proto;
+	struct pipex_mppe_req pr_mppe_recv;
+	struct pipex_mppe_req pr_mppe_send;
+};
+
+struct pipex_session_stat_req {
+	int		psr_protocol;		/* tunnel protocol  */
+	uint16_t	psr_session_id;		/* session-id */
+	struct pipex_statistics psr_stat;	/* statistics */
+};
+#define pipex_session_close_req		pipex_session_stat_req
+#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_NONE		0x00
+#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 */
+};
+
+/* PIPEX ioctls */
+#define PIPEXSMODE	_IOW ('t', 91, int)
+#define PIPEXGMODE	_IOR ('t', 92, int)
+#define PIPEXASESSION	_IOW ('t', 94, struct pipex_session_req)
+#define PIPEXDSESSION	_IOWR('t', 93, struct pipex_session_close_req)
+#define PIPEXCSESSION	_IOW ('t', 95, struct pipex_session_config_req)
+#define PIPEXGSTAT	_IOWR('t', 96, struct pipex_session_stat_req)
+#define PIPEXGCLOSED	_IOR ('t', 97, struct pipex_session_list_req)
+
+#ifdef _KERNEL
+
+struct pipex_session;
+
+/* pipex context for a interface. */
+struct pipex_iface_context {
+	struct	ifnet *ifnet_this;	/* outer interface */
+	u_int	pipexmode;		/* pppac ipex mode */
+	/* virtual pipex_session entry for multicast routing */
+	struct pipex_session *multicast_session;
+};
+#include <sys/cdefs.h>
+__BEGIN_DECLS
+void                  pipex_init (void);
+void                  pipex_iface_init (struct pipex_iface_context *, struct ifnet *);
+void                  pipex_iface_start (struct pipex_iface_context *);
+void                  pipex_iface_stop (struct pipex_iface_context *);
+
+int                   pipex_notify_close_session(struct pipex_session *session);
+int                   pipex_notify_close_session_all(void);
+
+struct pipex_session  *pipex_ip_lookup_session (struct mbuf *, struct pipex_iface_context *);
+void                  pipex_ip_output (struct mbuf *, struct pipex_session *);
+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 (struct mbuf *, struct in_addr);
+struct mbuf           *pipex_pptp_userland_output (struct mbuf *, struct pipex_session *);
+int                   pipex_ioctl (struct pipex_iface_context *, int, caddr_t);
+__END_DECLS
+
+#endif /* _KERNEL */
+#endif