if_spppvar.h revision 1.18
1 /* $NetBSD: if_spppvar.h,v 1.18 2016/11/25 05:03:12 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 31 #include <net/if_media.h> 32 33 #define IDX_LCP 0 /* idx into state table */ 34 35 struct slcp { 36 u_long opts; /* LCP options to send (bitfield) */ 37 u_long magic; /* local magic number */ 38 u_long mru; /* our max receive unit */ 39 u_long their_mru; /* their max receive unit */ 40 u_long protos; /* bitmask of protos that are started */ 41 u_char echoid; /* id of last keepalive echo request */ 42 /* restart max values, see RFC 1661 */ 43 int timeout; 44 int max_terminate; 45 int max_configure; 46 int max_failure; 47 }; 48 49 #define IDX_IPCP 1 /* idx into state table */ 50 #define IDX_IPV6CP 2 /* idx into state table */ 51 52 struct sipcp { 53 u_long opts; /* IPCP options to send (bitfield) */ 54 u_int flags; 55 #define IPCP_HISADDR_SEEN 1 /* have seen his address already */ 56 #define IPCP_MYADDR_SEEN 2 /* have a local address assigned already */ 57 #define IPCP_MYADDR_DYN 4 /* my address is dynamically assigned */ 58 #define IPCP_HISADDR_DYN 8 /* his address is dynamically assigned */ 59 #ifdef notdef 60 #define IPV6CP_MYIFID_DYN 2 /* my ifid is dynamically assigned */ 61 #endif 62 #define IPV6CP_MYIFID_SEEN 4 /* have seen his ifid already */ 63 uint32_t saved_hisaddr;/* if hisaddr (IPv4) is dynamic, save original one here, in network byte order */ 64 uint32_t req_hisaddr; /* remote address requested */ 65 uint32_t req_myaddr; /* local address requested */ 66 67 struct workqueue *set_addrs_wq; 68 struct work set_addrs_wk; 69 u_int set_addrs_enqueued; 70 71 struct workqueue *clear_addrs_wq; 72 struct work clear_addrs_wk; 73 u_int clear_addrs_enqueued; 74 }; 75 76 struct sauth { 77 u_short proto; /* authentication protocol to use */ 78 u_short flags; 79 char *name; /* system identification name */ 80 char *secret; /* secret password */ 81 u_char name_len; /* no need to have a bigger size */ 82 u_char secret_len; /* because proto gives size in a byte */ 83 char challenge[16]; /* random challenge [don't change size! it's really hardcoded!] */ 84 }; 85 86 #define IDX_PAP 3 87 #define IDX_CHAP 4 88 89 #define IDX_COUNT (IDX_CHAP + 1) /* bump this when adding cp's! */ 90 91 struct sppp { 92 /* NB: pp_if _must_ be first */ 93 struct ifnet pp_if; /* network interface data */ 94 struct ifmedia pp_im; /* interface media, to report link status */ 95 struct ifqueue pp_fastq; /* fast output queue */ 96 struct ifqueue pp_cpq; /* PPP control protocol queue */ 97 struct sppp *pp_next; /* next interface in keepalive list */ 98 u_int pp_flags; /* use Cisco protocol instead of PPP */ 99 u_int pp_framebytes; /* number of bytes added by (hardware) framing */ 100 u_int pp_alivecnt; /* keepalive packets counter */ 101 u_int pp_loopcnt; /* loopback detection counter */ 102 u_int pp_maxalive; /* number or echo req. w/o reply */ 103 u_long pp_seq[IDX_COUNT]; /* local sequence number */ 104 u_long pp_rseq[IDX_COUNT]; /* remote sequence number */ 105 uint64_t pp_saved_mtu; /* saved MTU value */ 106 time_t pp_last_receive; /* peer's last "sign of life" */ 107 time_t pp_max_noreceive; /* seconds since last receive before 108 we start to worry and send echo 109 requests */ 110 time_t pp_last_activity; /* second of last payload data s/r */ 111 time_t pp_idle_timeout; /* idle seconds before auto-disconnect, 112 * 0 = disabled */ 113 int pp_auth_failures; /* authorization failures */ 114 int pp_max_auth_fail; /* max. allowed authorization failures */ 115 int pp_phase; /* phase we're currently in */ 116 int query_dns; /* 1 if we want to know the dns addresses */ 117 uint32_t dns_addrs[2]; 118 int state[IDX_COUNT]; /* state machine */ 119 u_char confid[IDX_COUNT]; /* id of last configuration request */ 120 int rst_counter[IDX_COUNT]; /* restart counter */ 121 int fail_counter[IDX_COUNT]; /* negotiation failure counter */ 122 #if defined(__NetBSD__) 123 struct callout ch[IDX_COUNT]; /* per-proto and if callouts */ 124 struct callout pap_my_to_ch; /* PAP needs one more... */ 125 #endif 126 #if defined(__FreeBSD__) && __FreeBSD__ >= 3 127 struct callout_handle ch[IDX_COUNT]; /* per-proto and if callouts */ 128 struct callout_handle pap_my_to_ch; /* PAP needs one more... */ 129 #endif 130 struct slcp lcp; /* LCP params */ 131 struct sipcp ipcp; /* IPCP params */ 132 struct sipcp ipv6cp; /* IPv6CP params */ 133 struct sauth myauth; /* auth params, i'm peer */ 134 struct sauth hisauth; /* auth params, i'm authenticator */ 135 /* 136 * These functions are filled in by sppp_attach(), and are 137 * expected to be used by the lower layer (hardware) drivers 138 * in order to communicate the (un)availability of the 139 * communication link. Lower layer drivers that are always 140 * ready to communicate (like hardware HDLC) can shortcut 141 * pp_up from pp_tls, and pp_down from pp_tlf. 142 */ 143 void (*pp_up)(struct sppp *); 144 void (*pp_down)(struct sppp *); 145 /* 146 * These functions need to be filled in by the lower layer 147 * (hardware) drivers if they request notification from the 148 * PPP layer whether the link is actually required. They 149 * correspond to the tls and tlf actions. 150 */ 151 void (*pp_tls)(struct sppp *); 152 void (*pp_tlf)(struct sppp *); 153 /* 154 * These (optional) functions may be filled by the hardware 155 * driver if any notification of established connections 156 * (currently: IPCP up) is desired (pp_con) or any internal 157 * state change of the interface state machine should be 158 * signaled for monitoring purposes (pp_chg). 159 */ 160 void (*pp_con)(struct sppp *); 161 void (*pp_chg)(struct sppp *, int); 162 }; 163 164 #define PP_KEEPALIVE 0x01 /* use keepalive protocol */ 165 #define PP_CISCO 0x02 /* use Cisco protocol instead of PPP */ 166 /* 0x04 was PP_TIMO */ 167 #define PP_CALLIN 0x08 /* we are being called */ 168 #define PP_NEEDAUTH 0x10 /* remote requested authentication */ 169 #define PP_NOFRAMING 0x20 /* do not add/expect encapsulation 170 around PPP frames (i.e. the serial 171 HDLC like encapsulation, RFC1662) */ 172 173 174 #define PP_MTU 1500 /* default/minimal MRU */ 175 #define PP_MAX_MRU 2048 /* maximal MRU we want to negotiate */ 176 177 #ifdef _KERNEL 178 void sppp_attach (struct ifnet *); 179 void sppp_detach (struct ifnet *); 180 void sppp_input (struct ifnet *, struct mbuf *); 181 int sppp_ioctl(struct ifnet *, u_long, void *); 182 struct mbuf *sppp_dequeue (struct ifnet *); 183 int sppp_isempty (struct ifnet *); 184 void sppp_flush (struct ifnet *); 185 #endif 186 #endif /* !_NET_IF_SPPPVAR_H_ */ 187
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