if_spppvar.h revision 1.21
1 /* $NetBSD: if_spppvar.h,v 1.21 2017/10/12 09:49:43 knakahara 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 <sys/workqueue.h> 30 #include <sys/pcq.h> 31 32 #include <net/if_media.h> 33 34 #define IDX_LCP 0 /* idx into state table */ 35 36 struct slcp { 37 u_long opts; /* LCP options to send (bitfield) */ 38 u_long magic; /* local magic number */ 39 u_long mru; /* our max receive unit */ 40 u_long their_mru; /* their max receive unit */ 41 u_long protos; /* bitmask of protos that are started */ 42 u_char echoid; /* id of last keepalive echo request */ 43 /* restart max values, see RFC 1661 */ 44 int timeout; 45 int max_terminate; 46 int max_configure; 47 int max_failure; 48 }; 49 50 #define IDX_IPCP 1 /* idx into state table */ 51 #define IDX_IPV6CP 2 /* idx into state table */ 52 53 struct sipcp { 54 u_long opts; /* IPCP options to send (bitfield) */ 55 u_int flags; 56 #define IPCP_HISADDR_SEEN 1 /* have seen his address already */ 57 #define IPCP_MYADDR_SEEN 2 /* have a local address assigned already */ 58 #define IPCP_MYADDR_DYN 4 /* my address is dynamically assigned */ 59 #define IPCP_HISADDR_DYN 8 /* his address is dynamically assigned */ 60 #ifdef notdef 61 #define IPV6CP_MYIFID_DYN 2 /* my ifid is dynamically assigned */ 62 #endif 63 #define IPV6CP_MYIFID_SEEN 4 /* have seen his ifid already */ 64 uint32_t saved_hisaddr;/* if hisaddr (IPv4) is dynamic, save original one here, in network byte order */ 65 uint32_t req_hisaddr; /* remote address requested */ 66 uint32_t req_myaddr; /* local address requested */ 67 68 struct workqueue *update_addrs_wq; 69 struct work update_addrs_wk; 70 u_int update_addrs_enqueued; 71 pcq_t *update_addrs_q; 72 }; 73 74 struct sauth { 75 u_short proto; /* authentication protocol to use */ 76 u_short flags; 77 char *name; /* system identification name */ 78 char *secret; /* secret password */ 79 u_char name_len; /* no need to have a bigger size */ 80 u_char secret_len; /* because proto gives size in a byte */ 81 char challenge[16]; /* random challenge [don't change size! it's really hardcoded!] */ 82 }; 83 84 #define IDX_PAP 3 85 #define IDX_CHAP 4 86 87 #define IDX_COUNT (IDX_CHAP + 1) /* bump this when adding cp's! */ 88 89 struct sppp { 90 /* NB: pp_if _must_ be first */ 91 struct ifnet pp_if; /* network interface data */ 92 struct ifmedia pp_im; /* interface media, to report link status */ 93 struct ifqueue pp_fastq; /* fast output queue */ 94 struct ifqueue pp_cpq; /* PPP control protocol queue */ 95 struct sppp *pp_next; /* next interface in keepalive list */ 96 u_int pp_flags; /* use Cisco protocol instead of PPP */ 97 u_int pp_framebytes; /* number of bytes added by (hardware) framing */ 98 u_int pp_alivecnt; /* keepalive packets counter */ 99 u_int pp_loopcnt; /* loopback detection counter */ 100 u_int pp_maxalive; /* number or echo req. w/o reply */ 101 u_long pp_seq[IDX_COUNT]; /* local sequence number */ 102 u_long pp_rseq[IDX_COUNT]; /* remote sequence number */ 103 uint64_t pp_saved_mtu; /* saved MTU value */ 104 time_t pp_last_receive; /* peer's last "sign of life" */ 105 time_t pp_max_noreceive; /* seconds since last receive before 106 we start to worry and send echo 107 requests */ 108 time_t pp_last_activity; /* second of last payload data s/r */ 109 time_t pp_idle_timeout; /* idle seconds before auto-disconnect, 110 * 0 = disabled */ 111 int pp_auth_failures; /* authorization failures */ 112 int pp_max_auth_fail; /* max. allowed authorization failures */ 113 int pp_phase; /* phase we're currently in */ 114 krwlock_t pp_lock; /* lock for sppp structure */ 115 int query_dns; /* 1 if we want to know the dns addresses */ 116 uint32_t dns_addrs[2]; 117 int state[IDX_COUNT]; /* state machine */ 118 u_char confid[IDX_COUNT]; /* id of last configuration request */ 119 int rst_counter[IDX_COUNT]; /* restart counter */ 120 int fail_counter[IDX_COUNT]; /* negotiation failure counter */ 121 #if defined(__NetBSD__) 122 struct callout ch[IDX_COUNT]; /* per-proto and if callouts */ 123 struct callout pap_my_to_ch; /* PAP needs one more... */ 124 #endif 125 #if defined(__FreeBSD__) && __FreeBSD__ >= 3 126 struct callout_handle ch[IDX_COUNT]; /* per-proto and if callouts */ 127 struct callout_handle pap_my_to_ch; /* PAP needs one more... */ 128 #endif 129 struct slcp lcp; /* LCP params */ 130 struct sipcp ipcp; /* IPCP params */ 131 struct sipcp ipv6cp; /* IPv6CP params */ 132 struct sauth myauth; /* auth params, i'm peer */ 133 struct sauth hisauth; /* auth params, i'm authenticator */ 134 /* 135 * These functions are filled in by sppp_attach(), and are 136 * expected to be used by the lower layer (hardware) drivers 137 * in order to communicate the (un)availability of the 138 * communication link. Lower layer drivers that are always 139 * ready to communicate (like hardware HDLC) can shortcut 140 * pp_up from pp_tls, and pp_down from pp_tlf. 141 */ 142 void (*pp_up)(struct sppp *); 143 void (*pp_down)(struct sppp *); 144 /* 145 * These functions need to be filled in by the lower layer 146 * (hardware) drivers if they request notification from the 147 * PPP layer whether the link is actually required. They 148 * correspond to the tls and tlf actions. 149 */ 150 void (*pp_tls)(struct sppp *); 151 void (*pp_tlf)(struct sppp *); 152 /* 153 * These (optional) functions may be filled by the hardware 154 * driver if any notification of established connections 155 * (currently: IPCP up) is desired (pp_con) or any internal 156 * state change of the interface state machine should be 157 * signaled for monitoring purposes (pp_chg). 158 */ 159 void (*pp_con)(struct sppp *); 160 void (*pp_chg)(struct sppp *, int); 161 }; 162 163 #define PP_KEEPALIVE 0x01 /* use keepalive protocol */ 164 #define PP_CISCO 0x02 /* use Cisco protocol instead of PPP */ 165 /* 0x04 was PP_TIMO */ 166 #define PP_CALLIN 0x08 /* we are being called */ 167 #define PP_NEEDAUTH 0x10 /* remote requested authentication */ 168 #define PP_NOFRAMING 0x20 /* do not add/expect encapsulation 169 around PPP frames (i.e. the serial 170 HDLC like encapsulation, RFC1662) */ 171 172 173 #define PP_MTU 1500 /* default/minimal MRU */ 174 #define PP_MAX_MRU 2048 /* maximal MRU we want to negotiate */ 175 176 #ifdef _KERNEL 177 void sppp_attach (struct ifnet *); 178 void sppp_detach (struct ifnet *); 179 void sppp_input (struct ifnet *, struct mbuf *); 180 int sppp_ioctl(struct ifnet *, u_long, void *); 181 struct mbuf *sppp_dequeue (struct ifnet *); 182 int sppp_isempty (struct ifnet *); 183 void sppp_flush (struct ifnet *); 184 #endif 185 #endif /* !_NET_IF_SPPPVAR_H_ */ 186
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