if_spppvar.h revision 1.8
1 /* $NetBSD: if_spppvar.h,v 1.8 2003/07/08 07:13:52 itojun Exp $ */ 2 3 /* 4 * Defines for synchronous PPP/Cisco link level subroutines. 5 * 6 * Copyright (C) 1994 Cronyx Ltd. 7 * Author: Serge Vakulenko, <vak (at) cronyx.ru> 8 * 9 * Heavily revamped to conform to RFC 1661. 10 * Copyright (C) 1997, Joerg Wunsch. 11 * 12 * This software is distributed with NO WARRANTIES, not even the implied 13 * warranties for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 14 * 15 * Authors grant any other persons or organizations permission to use 16 * or modify this software as long as this message is kept with the software, 17 * all derivative works or modified versions. 18 * 19 * From: Version 2.0, Fri Oct 6 20:39:21 MSK 1995 20 * 21 * From: if_sppp.h,v 1.8 1997/10/11 11:25:20 joerg Exp 22 * 23 * From: Id: if_sppp.h,v 1.7 1998/12/01 20:20:19 hm Exp 24 */ 25 26 #define IDX_LCP 0 /* idx into state table */ 27 28 struct slcp { 29 u_long opts; /* LCP options to send (bitfield) */ 30 u_long magic; /* local magic number */ 31 u_long mru; /* our max receive unit */ 32 u_long their_mru; /* their max receive unit */ 33 u_long protos; /* bitmask of protos that are started */ 34 u_char echoid; /* id of last keepalive echo request */ 35 /* restart max values, see RFC 1661 */ 36 int timeout; 37 int max_terminate; 38 int max_configure; 39 int max_failure; 40 }; 41 42 #define IDX_IPCP 1 /* idx into state table */ 43 #define IDX_IPV6CP 2 /* idx into state table */ 44 45 struct sipcp { 46 u_long opts; /* IPCP options to send (bitfield) */ 47 u_int flags; 48 #define IPCP_HISADDR_SEEN 1 /* have seen his address already */ 49 #define IPCP_MYADDR_SEEN 2 /* have a local address assigned already */ 50 #define IPCP_MYADDR_DYN 4 /* my address is dynamically assigned */ 51 #define IPCP_HISADDR_DYN 8 /* his address is dynamically assigned */ 52 #ifdef notdef 53 #define IPV6CP_MYIFID_DYN 2 /* my ifid is dynamically assigned */ 54 #endif 55 #define IPV6CP_MYIFID_SEEN 4 /* have seen his ifid already */ 56 u_int32_t saved_hisaddr;/* if hisaddr (IPv4) is dynamic, save original one here, in network byte order */ 57 u_int32_t req_hisaddr; /* remote address requested */ 58 u_int32_t req_myaddr; /* local address requested */ 59 }; 60 61 struct sauth { 62 u_short proto; /* authentication protocol to use */ 63 u_short flags; 64 char *name; /* system identification name */ 65 char *secret; /* secret password */ 66 u_char name_len; /* no need to have a bigger size */ 67 u_char secret_len; /* because proto gives size in a byte */ 68 char challenge[16]; /* random challenge [don't change size! it's really hardcoded!] */ 69 }; 70 71 #define IDX_PAP 3 72 #define IDX_CHAP 4 73 74 #define IDX_COUNT (IDX_CHAP + 1) /* bump this when adding cp's! */ 75 76 struct sppp { 77 /* NB: pp_if _must_ be first */ 78 struct ifnet pp_if; /* network interface data */ 79 struct ifqueue pp_fastq; /* fast output queue */ 80 struct ifqueue pp_cpq; /* PPP control protocol queue */ 81 struct sppp *pp_next; /* next interface in keepalive list */ 82 u_int pp_flags; /* use Cisco protocol instead of PPP */ 83 u_int pp_framebytes; /* number of bytes added by (hardware) framing */ 84 u_short pp_alivecnt; /* keepalive packets counter */ 85 u_short pp_loopcnt; /* loopback detection counter */ 86 u_long pp_seq[IDX_COUNT]; /* local sequence number */ 87 u_long pp_rseq[IDX_COUNT]; /* remote sequence number */ 88 u_quad_t pp_saved_mtu; /* saved MTU value */ 89 time_t pp_last_activity; /* second of last payload data s/r */ 90 time_t pp_idle_timeout; /* idle seconds before auto-disconnect, 91 * 0 = disabled */ 92 int pp_auth_failures; /* authorization failures */ 93 int pp_max_auth_fail; /* max. allowed authorization failures */ 94 int pp_phase; /* phase we're currently in */ 95 int query_dns; /* 1 if we want to know the dns addresses */ 96 u_int32_t dns_addrs[2]; 97 int state[IDX_COUNT]; /* state machine */ 98 u_char confid[IDX_COUNT]; /* id of last configuration request */ 99 int rst_counter[IDX_COUNT]; /* restart counter */ 100 int fail_counter[IDX_COUNT]; /* negotiation failure counter */ 101 #if defined(__NetBSD__) 102 struct callout ch[IDX_COUNT]; /* per-proto and if callouts */ 103 struct callout pap_my_to_ch; /* PAP needs one more... */ 104 #endif 105 #if defined(__FreeBSD__) && __FreeBSD__ >= 3 106 struct callout_handle ch[IDX_COUNT]; /* per-proto and if callouts */ 107 struct callout_handle pap_my_to_ch; /* PAP needs one more... */ 108 #endif 109 struct slcp lcp; /* LCP params */ 110 struct sipcp ipcp; /* IPCP params */ 111 struct sipcp ipv6cp; /* IPv6CP params */ 112 struct sauth myauth; /* auth params, i'm peer */ 113 struct sauth hisauth; /* auth params, i'm authenticator */ 114 /* 115 * These functions are filled in by sppp_attach(), and are 116 * expected to be used by the lower layer (hardware) drivers 117 * in order to communicate the (un)availability of the 118 * communication link. Lower layer drivers that are always 119 * ready to communicate (like hardware HDLC) can shortcut 120 * pp_up from pp_tls, and pp_down from pp_tlf. 121 */ 122 void (*pp_up)(struct sppp *); 123 void (*pp_down)(struct sppp *); 124 /* 125 * These functions need to be filled in by the lower layer 126 * (hardware) drivers if they request notification from the 127 * PPP layer whether the link is actually required. They 128 * correspond to the tls and tlf actions. 129 */ 130 void (*pp_tls)(struct sppp *); 131 void (*pp_tlf)(struct sppp *); 132 /* 133 * These (optional) functions may be filled by the hardware 134 * driver if any notification of established connections 135 * (currently: IPCP up) is desired (pp_con) or any internal 136 * state change of the interface state machine should be 137 * signaled for monitoring purposes (pp_chg). 138 */ 139 void (*pp_con)(struct sppp *); 140 void (*pp_chg)(struct sppp *, int); 141 }; 142 143 #define PP_KEEPALIVE 0x01 /* use keepalive protocol */ 144 #define PP_CISCO 0x02 /* use Cisco protocol instead of PPP */ 145 /* 0x04 was PP_TIMO */ 146 #define PP_CALLIN 0x08 /* we are being called */ 147 #define PP_NEEDAUTH 0x10 /* remote requested authentication */ 148 #define PP_NOFRAMING 0x20 /* do not add/expect encapsulation 149 around PPP frames (i.e. the serial 150 HDLC like encapsulation, RFC1662) */ 151 152 153 #define PP_MTU 1500 /* default/minimal MRU */ 154 #define PP_MAX_MRU 2048 /* maximal MRU we want to negotiate */ 155 156 #ifdef _KERNEL 157 void sppp_attach (struct ifnet *); 158 void sppp_detach (struct ifnet *); 159 void sppp_input (struct ifnet *, struct mbuf *); 160 int sppp_ioctl(struct ifnet *, u_long, void *); 161 struct mbuf *sppp_dequeue (struct ifnet *); 162 struct mbuf *sppp_pick(struct ifnet *); 163 int sppp_isempty (struct ifnet *); 164 void sppp_flush (struct ifnet *); 165 #endif 166
Indexes created Sat Sep 27 22:09:54 GMT 2025