if_spppvar.h revision 1.17
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 (at) 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
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