2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 1996 - 2001 Brian Somers <brian@Awfulhak.org>
5 * based on work by Toshiharu OHNO <tony-o@iij.ad.jp>
6 * Internet Initiative Japan, Inc (IIJ)
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 #define IPCP_MAXCODE CODE_CODEREJ
36 #define TY_COMPPROTO 2
39 /* Domain NameServer and NetBIOS NameServer options */
41 #define TY_PRIMARY_DNS 129
42 #define TY_PRIMARY_NBNS 130
43 #define TY_SECONDARY_DNS 131
44 #define TY_SECONDARY_NBNS 132
45 #define TY_ADJUST_NS 119 /* subtract from NS val for REJECT bit */
48 struct fsm fsm; /* The finite state machine */
52 int slots; /* Maximum VJ slots */
53 unsigned slotcomp : 1; /* Slot compression */
54 unsigned neg : 2; /* VJ negotiation */
57 struct ncprange my_range; /* MYADDR spec */
58 struct in_addr netmask; /* Iface netmask (unused by most OSs) */
59 struct ncprange peer_range; /* HISADDR spec */
60 struct iplist peer_list; /* Ranges of HISADDR values */
62 struct in_addr TriggerAddress; /* Address to suggest in REQ */
63 unsigned HaveTriggerAddress : 1; /* Trigger address specified */
66 struct in_addr dns[2]; /* DNS addresses offered */
67 unsigned dns_neg : 2; /* dns negotiation */
68 struct in_addr nbns[2]; /* NetBIOS NS addresses offered */
71 struct fsm_retry fsm; /* frequency to resend requests */
75 struct slcompress cslc; /* VJ state */
76 struct slstat slstat; /* VJ statistics */
80 unsigned resolver : 1; /* Found resolv.conf ? */
81 unsigned writable : 1; /* Can write resolv.conf ? */
82 struct in_addr dns[2]; /* Current DNS addresses */
83 char *resolv; /* Contents of resolv.conf */
84 char *resolv_nons; /* Contents of resolv.conf without ns */
87 unsigned heis1172 : 1; /* True if he is speaking rfc1172 */
89 unsigned peer_req : 1; /* Any TY_IPADDR REQs from the peer ? */
90 struct in_addr peer_ip; /* IP address he's willing to use */
91 u_int32_t peer_compproto; /* VJ params he's willing to use */
93 struct in_addr ifmask; /* Interface netmask */
95 struct in_addr my_ip; /* IP address I'm willing to use */
96 u_int32_t my_compproto; /* VJ params I'm willing to use */
98 u_int32_t peer_reject; /* Request codes rejected by peer */
99 u_int32_t my_reject; /* Request codes I have rejected */
101 struct pppThroughput throughput; /* throughput statistics */
102 struct mqueue Queue[3]; /* Output packet queues */
105 #define fsm2ipcp(fp) (fp->proto == PROTO_IPCP ? (struct ipcp *)fp : NULL)
106 #define IPCP_QUEUES(ipcp) (sizeof ipcp->Queue / sizeof ipcp->Queue[0])
113 extern void ipcp_Init(struct ipcp *, struct bundle *, struct link *,
114 const struct fsm_parent *);
115 extern void ipcp_Destroy(struct ipcp *);
116 extern void ipcp_Setup(struct ipcp *, u_int32_t);
117 extern void ipcp_SetLink(struct ipcp *, struct link *);
119 extern int ipcp_Show(struct cmdargs const *);
120 extern struct mbuf *ipcp_Input(struct bundle *, struct link *, struct mbuf *);
121 extern void ipcp_AddInOctets(struct ipcp *, int);
122 extern void ipcp_AddOutOctets(struct ipcp *, int);
123 extern int ipcp_UseHisIPaddr(struct bundle *, struct in_addr);
124 extern int ipcp_UseHisaddr(struct bundle *, const char *, int);
125 extern int ipcp_vjset(struct cmdargs const *);
126 extern void ipcp_IfaceAddrAdded(struct ipcp *, const struct iface_addr *);
127 extern void ipcp_IfaceAddrDeleted(struct ipcp *, const struct iface_addr *);
128 extern int ipcp_InterfaceUp(struct ipcp *);
129 extern struct in_addr addr2mask(struct in_addr);
130 extern int ipcp_WriteDNS(struct ipcp *);
131 extern void ipcp_RestoreDNS(struct ipcp *);
132 extern void ipcp_LoadDNS(struct ipcp *);
133 extern size_t ipcp_QueueLen(struct ipcp *);
134 extern int ipcp_PushPacket(struct ipcp *, struct link *);