xref: /freebsd/usr.sbin/ppp/ipv6cp.h (revision 09a53ad8f1318c5daae6cfb19d97f4f6459f0013)
1 /*-
2  * Copyright (c) 2001 Brian Somers <brian@Awfulhak.org>
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24  * SUCH DAMAGE.
25  *
26  * $FreeBSD$
27  */
28 
29 #ifndef NOINET6
30 #define	IPV6CP_MAXCODE	CODE_CODEREJ
31 
32 #define	TY_TOKEN	1
33 #define	TY_COMPPROTO	2
34 
35 #define	IPV6CP_IFIDLEN	8		/* RFC2472 */
36 
37 struct ipv6cp {
38   struct fsm fsm;			/* The finite state machine */
39 
40   struct {
41     struct fsm_retry fsm;		/* frequency to resend requests */
42   } cfg;
43 
44   unsigned peer_tokenreq : 1;		/* Any TY_TOKEN REQs from the peer ? */
45 
46   u_char my_ifid[IPV6CP_IFIDLEN];	/* Local Interface Identifier */
47   u_char his_ifid[IPV6CP_IFIDLEN];	/* Peer Interface Identifier */
48 
49   struct ncpaddr myaddr;		/* Local address */
50   struct ncpaddr hisaddr;		/* Peer address */
51 
52   u_int32_t his_reject;			/* Request codes rejected by peer */
53   u_int32_t my_reject;			/* Request codes I have rejected */
54 
55   struct pppThroughput throughput;	/* throughput statistics */
56   struct mqueue Queue[2];		/* Output packet queues */
57 };
58 
59 #define fsm2ipv6cp(fp) (fp->proto == PROTO_IPV6CP ? (struct ipv6cp *)fp : NULL)
60 #define IPV6CP_QUEUES(ipv6cp) (sizeof ipv6cp->Queue / sizeof ipv6cp->Queue[0])
61 
62 struct bundle;
63 struct link;
64 struct cmdargs;
65 struct iface_addr;
66 
67 extern void ipv6cp_Init(struct ipv6cp *, struct bundle *, struct link *,
68                         const struct fsm_parent *);
69 extern void ipv6cp_Destroy(struct ipv6cp *);
70 extern void ipv6cp_Setup(struct ipv6cp *);
71 extern void ipv6cp_SetLink(struct ipv6cp *, struct link *);
72 
73 extern int  ipv6cp_Show(struct cmdargs const *);
74 extern struct mbuf *ipv6cp_Input(struct bundle *, struct link *, struct mbuf *);
75 extern void ipv6cp_AddInOctets(struct ipv6cp *, int);
76 extern void ipv6cp_AddOutOctets(struct ipv6cp *, int);
77 
78 extern void ipv6cp_IfaceAddrAdded(struct ipv6cp *, const struct iface_addr *);
79 extern void ipv6cp_IfaceAddrDeleted(struct ipv6cp *, const struct iface_addr *);
80 extern int  ipv6cp_InterfaceUp(struct ipv6cp *);
81 extern size_t ipv6cp_QueueLen(struct ipv6cp *);
82 extern int ipv6cp_PushPacket(struct ipv6cp *, struct link *);
83 #endif
84