xref: /freebsd/usr.sbin/ppp/ipcp.h (revision 4cf49a43559ed9fdad601bdcccd2c55963008675)
1 /*
2  *	    Written by Toshiharu OHNO (tony-o@iij.ad.jp)
3  *
4  *   Copyright (C) 1993, Internet Initiative Japan, Inc. All rights reserverd.
5  *
6  * Redistribution and use in source and binary forms are permitted
7  * provided that the above copyright notice and this paragraph are
8  * duplicated in all such forms and that any documentation,
9  * advertising materials, and other materials related to such
10  * distribution and use acknowledge that the software was developed
11  * by the Internet Initiative Japan.  The name of the
12  * IIJ may not be used to endorse or promote products derived
13  * from this software without specific prior written permission.
14  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
15  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
16  * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
17  *
18  * $FreeBSD$
19  *
20  *	TODO:
21  */
22 
23 #define	IPCP_MAXCODE	CODE_CODEREJ
24 
25 #define	TY_IPADDRS	1
26 #define	TY_COMPPROTO	2
27 #define	TY_IPADDR	3
28 
29 /* Domain NameServer and NetBIOS NameServer options */
30 
31 #define TY_PRIMARY_DNS		129
32 #define TY_PRIMARY_NBNS		130
33 #define TY_SECONDARY_DNS	131
34 #define TY_SECONDARY_NBNS	132
35 #define TY_ADJUST_NS		119 /* subtract from NS val for REJECT bit */
36 
37 struct sticky_route;
38 
39 struct in_range {
40   struct in_addr ipaddr;
41   struct in_addr mask;
42   int width;
43 };
44 
45 struct port_range {
46   unsigned nports;		/* How many ports */
47   unsigned maxports;		/* How many allocated (malloc) ports */
48   u_short *port;		/* The actual ports */
49 };
50 
51 struct ipcp {
52   struct fsm fsm;			/* The finite state machine */
53 
54   struct {
55     struct {
56       int slots;			/* Maximum VJ slots */
57       unsigned slotcomp : 1;		/* Slot compression */
58       unsigned neg : 2;			/* VJ negotiation */
59     } vj;
60 
61     struct in_range  my_range;		/* MYADDR spec */
62     struct in_addr   netmask;		/* Iface netmask (unused by most OSs) */
63     struct in_range  peer_range;	/* HISADDR spec */
64     struct iplist    peer_list;		/* Ranges of HISADDR values */
65 
66     u_long sendpipe;			/* route sendpipe size */
67     u_long recvpipe;			/* route recvpipe size */
68 
69     struct in_addr   TriggerAddress;	/* Address to suggest in REQ */
70     unsigned HaveTriggerAddress : 1;	/* Trigger address specified */
71 
72     struct {
73       struct in_addr dns[2];		/* DNS addresses offered */
74       unsigned dns_neg : 2;		/* dns negotiation */
75       struct in_addr nbns[2];		/* NetBIOS NS addresses offered */
76     } ns;
77 
78     struct {
79       struct port_range tcp, udp;	/* The range of urgent ports */
80     } urgent;
81 
82     struct fsm_retry fsm;	/* How often/frequently to resend requests */
83   } cfg;
84 
85   struct {
86     struct slcompress cslc;		/* VJ state */
87     struct slstat slstat;		/* VJ statistics */
88   } vj;
89 
90   struct sticky_route *route;		/* List of dynamic routes */
91 
92   unsigned heis1172 : 1;		/* True if he is speaking rfc1172 */
93 
94   struct in_addr peer_ip;		/* IP address he's willing to use */
95   u_int32_t peer_compproto;		/* VJ params he's willing to use */
96 
97   struct in_addr ifmask;		/* Interface netmask */
98 
99   struct in_addr my_ip;			/* IP address I'm willing to use */
100   u_int32_t my_compproto;		/* VJ params I'm willing to use */
101 
102   u_int32_t peer_reject;		/* Request codes rejected by peer */
103   u_int32_t my_reject;			/* Request codes I have rejected */
104 
105   struct pppThroughput throughput;	/* throughput statistics */
106   struct mqueue Queue[3];		/* Output packet queues */
107 };
108 
109 #define fsm2ipcp(fp) (fp->proto == PROTO_IPCP ? (struct ipcp *)fp : NULL)
110 #define IPCP_QUEUES(ipcp) (sizeof ipcp->Queue / sizeof ipcp->Queue[0])
111 
112 struct bundle;
113 struct link;
114 struct cmdargs;
115 
116 extern void ipcp_Init(struct ipcp *, struct bundle *, struct link *,
117                       const struct fsm_parent *);
118 extern void ipcp_Destroy(struct ipcp *);
119 extern void ipcp_Setup(struct ipcp *, u_int32_t);
120 extern void ipcp_SetLink(struct ipcp *, struct link *);
121 
122 extern int  ipcp_Show(struct cmdargs const *);
123 extern struct mbuf *ipcp_Input(struct bundle *, struct link *, struct mbuf *);
124 extern void ipcp_AddInOctets(struct ipcp *, int);
125 extern void ipcp_AddOutOctets(struct ipcp *, int);
126 extern int  ipcp_UseHisIPaddr(struct bundle *, struct in_addr);
127 extern int  ipcp_UseHisaddr(struct bundle *, const char *, int);
128 extern int  ipcp_vjset(struct cmdargs const *);
129 extern void ipcp_CleanInterface(struct ipcp *);
130 extern int  ipcp_InterfaceUp(struct ipcp *);
131 extern int  ipcp_IsUrgentPort(struct port_range *, u_short, u_short);
132 extern void ipcp_AddUrgentPort(struct port_range *, u_short);
133 extern void ipcp_RemoveUrgentPort(struct port_range *, u_short);
134 extern void ipcp_ClearUrgentPorts(struct port_range *);
135 extern struct in_addr addr2mask(struct in_addr);
136 
137 #define ipcp_IsUrgentTcpPort(ipcp, p1, p2) \
138           ipcp_IsUrgentPort(&(ipcp)->cfg.urgent.tcp, p1, p2)
139 #define ipcp_IsUrgentUdpPort(ipcp, p1, p2) \
140           ipcp_IsUrgentPort(&(ipcp)->cfg.urgent.udp, p1, p2)
141 #define ipcp_AddUrgentTcpPort(ipcp, p) \
142           ipcp_AddUrgentPort(&(ipcp)->cfg.urgent.tcp, p)
143 #define ipcp_AddUrgentUdpPort(ipcp, p) \
144           ipcp_AddUrgentPort(&(ipcp)->cfg.urgent.udp, p)
145 #define ipcp_RemoveUrgentTcpPort(ipcp, p) \
146           ipcp_RemoveUrgentPort(&(ipcp)->cfg.urgent.tcp, p)
147 #define ipcp_RemoveUrgentUdpPort(ipcp, p) \
148           ipcp_RemoveUrgentPort(&(ipcp)->cfg.urgent.udp, p)
149 #define ipcp_ClearUrgentTcpPorts(ipcp) \
150           ipcp_ClearUrgentPorts(&(ipcp)->cfg.urgent.tcp)
151 #define ipcp_ClearUrgentUdpPorts(ipcp) \
152           ipcp_ClearUrgentPorts(&(ipcp)->cfg.urgent.udp)
153