1 | /* $NetBSD: if_spppvar.h,v 1.17 2016/09/14 10:58:38 roy Exp $ */ |
2 | |
3 | #ifndef _NET_IF_SPPPVAR_H_ |
4 | #define _NET_IF_SPPPVAR_H_ |
5 | |
6 | /* |
7 | * Defines for synchronous PPP/Cisco link level subroutines. |
8 | * |
9 | * Copyright (C) 1994 Cronyx Ltd. |
10 | * Author: Serge Vakulenko, <vak@cronyx.ru> |
11 | * |
12 | * Heavily revamped to conform to RFC 1661. |
13 | * Copyright (C) 1997, Joerg Wunsch. |
14 | * |
15 | * This software is distributed with NO WARRANTIES, not even the implied |
16 | * warranties for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
17 | * |
18 | * Authors grant any other persons or organizations permission to use |
19 | * or modify this software as long as this message is kept with the software, |
20 | * all derivative works or modified versions. |
21 | * |
22 | * From: Version 2.0, Fri Oct 6 20:39:21 MSK 1995 |
23 | * |
24 | * From: if_sppp.h,v 1.8 1997/10/11 11:25:20 joerg Exp |
25 | * |
26 | * From: Id: if_sppp.h,v 1.7 1998/12/01 20:20:19 hm Exp |
27 | */ |
28 | |
29 | #include <net/if_media.h> |
30 | |
31 | #define IDX_LCP 0 /* idx into state table */ |
32 | |
33 | struct slcp { |
34 | u_long opts; /* LCP options to send (bitfield) */ |
35 | u_long magic; /* local magic number */ |
36 | u_long mru; /* our max receive unit */ |
37 | u_long their_mru; /* their max receive unit */ |
38 | u_long protos; /* bitmask of protos that are started */ |
39 | u_char echoid; /* id of last keepalive echo request */ |
40 | /* restart max values, see RFC 1661 */ |
41 | int timeout; |
42 | int max_terminate; |
43 | int max_configure; |
44 | int max_failure; |
45 | }; |
46 | |
47 | #define IDX_IPCP 1 /* idx into state table */ |
48 | #define IDX_IPV6CP 2 /* idx into state table */ |
49 | |
50 | struct sipcp { |
51 | u_long opts; /* IPCP options to send (bitfield) */ |
52 | u_int flags; |
53 | #define IPCP_HISADDR_SEEN 1 /* have seen his address already */ |
54 | #define IPCP_MYADDR_SEEN 2 /* have a local address assigned already */ |
55 | #define IPCP_MYADDR_DYN 4 /* my address is dynamically assigned */ |
56 | #define IPCP_HISADDR_DYN 8 /* his address is dynamically assigned */ |
57 | #ifdef notdef |
58 | #define IPV6CP_MYIFID_DYN 2 /* my ifid is dynamically assigned */ |
59 | #endif |
60 | #define IPV6CP_MYIFID_SEEN 4 /* have seen his ifid already */ |
61 | uint32_t saved_hisaddr;/* if hisaddr (IPv4) is dynamic, save original one here, in network byte order */ |
62 | uint32_t req_hisaddr; /* remote address requested */ |
63 | uint32_t req_myaddr; /* local address requested */ |
64 | }; |
65 | |
66 | struct sauth { |
67 | u_short proto; /* authentication protocol to use */ |
68 | u_short flags; |
69 | char *name; /* system identification name */ |
70 | char *secret; /* secret password */ |
71 | u_char name_len; /* no need to have a bigger size */ |
72 | u_char secret_len; /* because proto gives size in a byte */ |
73 | char challenge[16]; /* random challenge [don't change size! it's really hardcoded!] */ |
74 | }; |
75 | |
76 | #define IDX_PAP 3 |
77 | #define IDX_CHAP 4 |
78 | |
79 | #define IDX_COUNT (IDX_CHAP + 1) /* bump this when adding cp's! */ |
80 | |
81 | struct sppp { |
82 | /* NB: pp_if _must_ be first */ |
83 | struct ifnet pp_if; /* network interface data */ |
84 | struct ifmedia pp_im; /* interface media, to report link status */ |
85 | struct ifqueue pp_fastq; /* fast output queue */ |
86 | struct ifqueue pp_cpq; /* PPP control protocol queue */ |
87 | struct sppp *pp_next; /* next interface in keepalive list */ |
88 | u_int pp_flags; /* use Cisco protocol instead of PPP */ |
89 | u_int pp_framebytes; /* number of bytes added by (hardware) framing */ |
90 | u_int pp_alivecnt; /* keepalive packets counter */ |
91 | u_int pp_loopcnt; /* loopback detection counter */ |
92 | u_int pp_maxalive; /* number or echo req. w/o reply */ |
93 | u_long pp_seq[IDX_COUNT]; /* local sequence number */ |
94 | u_long pp_rseq[IDX_COUNT]; /* remote sequence number */ |
95 | uint64_t pp_saved_mtu; /* saved MTU value */ |
96 | time_t pp_last_receive; /* peer's last "sign of life" */ |
97 | time_t pp_max_noreceive; /* seconds since last receive before |
98 | we start to worry and send echo |
99 | requests */ |
100 | time_t pp_last_activity; /* second of last payload data s/r */ |
101 | time_t pp_idle_timeout; /* idle seconds before auto-disconnect, |
102 | * 0 = disabled */ |
103 | int pp_auth_failures; /* authorization failures */ |
104 | int pp_max_auth_fail; /* max. allowed authorization failures */ |
105 | int pp_phase; /* phase we're currently in */ |
106 | int query_dns; /* 1 if we want to know the dns addresses */ |
107 | uint32_t dns_addrs[2]; |
108 | int state[IDX_COUNT]; /* state machine */ |
109 | u_char confid[IDX_COUNT]; /* id of last configuration request */ |
110 | int rst_counter[IDX_COUNT]; /* restart counter */ |
111 | int fail_counter[IDX_COUNT]; /* negotiation failure counter */ |
112 | #if defined(__NetBSD__) |
113 | struct callout ch[IDX_COUNT]; /* per-proto and if callouts */ |
114 | struct callout pap_my_to_ch; /* PAP needs one more... */ |
115 | #endif |
116 | #if defined(__FreeBSD__) && __FreeBSD__ >= 3 |
117 | struct callout_handle ch[IDX_COUNT]; /* per-proto and if callouts */ |
118 | struct callout_handle pap_my_to_ch; /* PAP needs one more... */ |
119 | #endif |
120 | struct slcp lcp; /* LCP params */ |
121 | struct sipcp ipcp; /* IPCP params */ |
122 | struct sipcp ipv6cp; /* IPv6CP params */ |
123 | struct sauth myauth; /* auth params, i'm peer */ |
124 | struct sauth hisauth; /* auth params, i'm authenticator */ |
125 | /* |
126 | * These functions are filled in by sppp_attach(), and are |
127 | * expected to be used by the lower layer (hardware) drivers |
128 | * in order to communicate the (un)availability of the |
129 | * communication link. Lower layer drivers that are always |
130 | * ready to communicate (like hardware HDLC) can shortcut |
131 | * pp_up from pp_tls, and pp_down from pp_tlf. |
132 | */ |
133 | void (*pp_up)(struct sppp *); |
134 | void (*pp_down)(struct sppp *); |
135 | /* |
136 | * These functions need to be filled in by the lower layer |
137 | * (hardware) drivers if they request notification from the |
138 | * PPP layer whether the link is actually required. They |
139 | * correspond to the tls and tlf actions. |
140 | */ |
141 | void (*pp_tls)(struct sppp *); |
142 | void (*pp_tlf)(struct sppp *); |
143 | /* |
144 | * These (optional) functions may be filled by the hardware |
145 | * driver if any notification of established connections |
146 | * (currently: IPCP up) is desired (pp_con) or any internal |
147 | * state change of the interface state machine should be |
148 | * signaled for monitoring purposes (pp_chg). |
149 | */ |
150 | void (*pp_con)(struct sppp *); |
151 | void (*pp_chg)(struct sppp *, int); |
152 | }; |
153 | |
154 | #define PP_KEEPALIVE 0x01 /* use keepalive protocol */ |
155 | #define PP_CISCO 0x02 /* use Cisco protocol instead of PPP */ |
156 | /* 0x04 was PP_TIMO */ |
157 | #define PP_CALLIN 0x08 /* we are being called */ |
158 | #define PP_NEEDAUTH 0x10 /* remote requested authentication */ |
159 | #define PP_NOFRAMING 0x20 /* do not add/expect encapsulation |
160 | around PPP frames (i.e. the serial |
161 | HDLC like encapsulation, RFC1662) */ |
162 | |
163 | |
164 | #define PP_MTU 1500 /* default/minimal MRU */ |
165 | #define PP_MAX_MRU 2048 /* maximal MRU we want to negotiate */ |
166 | |
167 | #ifdef _KERNEL |
168 | void sppp_attach (struct ifnet *); |
169 | void sppp_detach (struct ifnet *); |
170 | void sppp_input (struct ifnet *, struct mbuf *); |
171 | int sppp_ioctl(struct ifnet *, u_long, void *); |
172 | struct mbuf *sppp_dequeue (struct ifnet *); |
173 | int sppp_isempty (struct ifnet *); |
174 | void sppp_flush (struct ifnet *); |
175 | #endif |
176 | #endif /* !_NET_IF_SPPPVAR_H_ */ |
177 | |