| 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 | |