1 /* 2 * Defines for synchronous PPP/Cisco link level subroutines. 3 * 4 * Copyright (C) 1994 Cronyx Ltd. 5 * Author: Serge Vakulenko, <vak@cronyx.ru> 6 * 7 * Heavily revamped to conform to RFC 1661. 8 * Copyright (C) 1997, Joerg Wunsch. 9 * 10 * This software is distributed with NO WARRANTIES, not even the implied 11 * warranties for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 12 * 13 * Authors grant any other persons or organizations permission to use 14 * or modify this software as long as this message is kept with the software, 15 * all derivative works or modified versions. 16 * 17 * From: Version 2.0, Fri Oct 6 20:39:21 MSK 1995 18 * 19 * From: if_sppp.h,v 1.14 1999/03/30 13:28:26 phk Exp 20 * 21 * $Id: i4b_isppp.h,v 1.4 2015/09/06 06:01:01 dholland Exp $ 22 */ 23 24 #ifndef _NETISDN_I4B_ISPPP_H_ 25 #define _NETISDN_I4B_ISPPP_H_ 26 27 #define SPPP_VJ /* use VJ compression */ 28 29 #include <sys/ioccom.h> 30 31 32 #ifdef SPPP_VJ 33 #if !(defined (KERNEL) || defined (_KERNEL)) 34 #ifdef __FreeBSD__ 35 #if 0 36 /* 37 * this is needed on FreeBSD to make /usr/src/usr.bin/kdump and 38 * /usr/src/usr.bin/truss compile. 39 */ 40 #include <sys/mbuf.h> 41 #endif 42 #include <netinet/in_systm.h> 43 #include <netinet/ip.h> 44 #include <net/slcompress.h> 45 #endif 46 #endif 47 #endif 48 49 #define IDX_LCP 0 /* idx into state table */ 50 51 struct slcp { 52 u_long opts; /* LCP options to send (bitfield) */ 53 u_long magic; /* local magic number */ 54 u_long mru; /* our max receive unit */ 55 u_long their_mru; /* their max receive unit */ 56 u_long protos; /* bitmask of protos that are started */ 57 u_char echoid; /* id of last keepalive echo request */ 58 /* restart max values, see RFC 1661 */ 59 int timeout; 60 int max_terminate; 61 int max_configure; 62 int max_failure; 63 }; 64 65 #define IDX_IPCP 1 /* idx into state table */ 66 67 struct sipcp { 68 u_long opts; /* IPCP options to send (bitfield) */ 69 u_int flags; 70 #define IPCP_HISADDR_SEEN 1 /* have seen his address already */ 71 #define IPCP_MYADDR_DYN 2 /* my address is dynamically assigned */ 72 #define IPCP_MYADDR_SEEN 4 /* have seen his address already */ 73 #define IPCP_VJ 8 /* We can use VJ compression */ 74 int max_state; /* Max-Slot-Id */ 75 int compress_cid; /* Comp-Slot-Id */ 76 }; 77 78 #define AUTHNAMELEN 32 79 #define AUTHKEYLEN 16 80 81 struct sauth { 82 u_short proto; /* authentication protocol to use */ 83 u_short flags; 84 #define AUTHFLAG_NOCALLOUT 1 /* do not require authentication on */ 85 /* callouts */ 86 #define AUTHFLAG_NORECHALLENGE 2 /* do not re-challenge CHAP */ 87 u_char name[AUTHNAMELEN]; /* system identification name */ 88 u_char secret[AUTHKEYLEN]; /* secret password */ 89 u_char challenge[AUTHKEYLEN]; /* random challenge */ 90 }; 91 92 #define IDX_PAP 2 93 #define IDX_CHAP 3 94 95 #define IDX_COUNT (IDX_CHAP + 1) /* bump this when adding cp's! */ 96 97 /* 98 * Don't change the order of this. Ordering the phases this way allows 99 * for a comparision of ``pp_phase >= PHASE_AUTHENTICATE'' in order to 100 * know whether LCP is up. 101 */ 102 enum ppp_phase { 103 PHASE_DEAD, PHASE_ESTABLISH, PHASE_TERMINATE, 104 PHASE_AUTHENTICATE, PHASE_NETWORK 105 }; 106 107 struct sppp { 108 /* NB: pp_if _must_ be first */ 109 struct ifnet pp_if; /* network interface data */ 110 struct ifqueue pp_fastq; /* fast output queue */ 111 struct ifqueue pp_cpq; /* PPP control protocol queue */ 112 struct sppp *pp_next; /* next interface in keepalive list */ 113 u_int pp_mode; /* major protocol modes (cisco/ppp/...) */ 114 u_int pp_flags; /* sub modes */ 115 u_short pp_alivecnt; /* keepalive packets counter */ 116 u_short pp_loopcnt; /* loopback detection counter */ 117 u_long pp_seq; /* local sequence number */ 118 u_long pp_rseq; /* remote sequence number */ 119 time_t pp_last_sent; 120 time_t pp_last_recv; 121 enum ppp_phase pp_phase; /* phase we're currently in */ 122 int state[IDX_COUNT]; /* state machine */ 123 u_char confid[IDX_COUNT]; /* id of last configuration request */ 124 int rst_counter[IDX_COUNT]; /* restart counter */ 125 int fail_counter[IDX_COUNT]; /* negotiation failure counter */ 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 sauth myauth; /* auth params, i'm peer */ 133 struct sauth hisauth; /* auth params, i'm authenticator */ 134 #ifdef SPPP_VJ 135 int enable_vj; /* enable VJ negotiation */ 136 struct slcompress pp_comp; /* for VJ compression */ 137 #endif 138 /* 139 * These functions are filled in by sppp_attach(), and are 140 * expected to be used by the lower layer (hardware) drivers 141 * in order to communicate the (un)availability of the 142 * communication link. Lower layer drivers that are always 143 * ready to communicate (like hardware HDLC) can shortcut 144 * pp_up from pp_tls, and pp_down from pp_tlf. 145 */ 146 void (*pp_up)(struct sppp *sp); 147 void (*pp_down)(struct sppp *sp); 148 /* 149 * These functions need to be filled in by the lower layer 150 * (hardware) drivers if they request notification from the 151 * PPP layer whether the link is actually required. They 152 * correspond to the tls and tlf actions. 153 */ 154 void (*pp_tls)(struct sppp *sp); 155 void (*pp_tlf)(struct sppp *sp); 156 /* 157 * These (optional) functions may be filled by the hardware 158 * driver if any notification of established connections 159 * (currently: IPCP up) is desired (pp_con) or any internal 160 * state change of the interface state machine should be 161 * signaled for monitoring purposes (pp_chg). 162 */ 163 void (*pp_con)(struct sppp *sp); 164 void (*pp_chg)(struct sppp *sp, int new_state); 165 /* These two fields are for use by the lower layer */ 166 void *pp_lowerp; 167 int pp_loweri; 168 }; 169 170 #define PP_KEEPALIVE 0x01 /* use keepalive protocol */ 171 #define PP_CALLIN 0x08 /* we are being called */ 172 #define PP_NEEDAUTH 0x10 /* remote requested authentication */ 173 174 175 #define PP_MTU 1500 /* default/minimal MRU */ 176 #define PP_MAX_MRU 2048 /* maximal MRU we want to negotiate */ 177 178 /* 179 * Definitions to pass struct sppp data down into the kernel using the 180 * SIOC[SG]IFGENERIC ioctl interface. 181 * 182 * In order to use this, create a struct spppreq, fill in the cmd 183 * field with SPPPIOGDEFS, and put the address of this structure into 184 * the ifr_data portion of a struct ifreq. Pass this struct to a 185 * SIOCGIFGENERIC ioctl. Then replace the cmd field by SPPPIOCDEFS, 186 * modify the defs field as desired, and pass the struct ifreq now 187 * to a SIOCSIFGENERIC ioctl. 188 */ 189 190 #define SPPPIOGDEFS ((void *)(('S' << 24) + (1 << 16) + sizeof(struct sppp))) 191 #define SPPPIOSDEFS ((void *)(('S' << 24) + (2 << 16) + sizeof(struct sppp))) 192 193 struct spppreq { 194 u_long cmd; 195 struct sppp defs; 196 }; 197 198 #ifndef SIOCSIFGENERIC 199 #define SIOCSIFGENERIC _IOW('i', 57, struct ifreq) /* generic IF set op */ 200 #endif 201 202 #ifndef SIOCGIFGENERIC 203 #define SIOCGIFGENERIC _IOWR('i', 58, struct ifreq) /* generic IF get op */ 204 #endif 205 206 #if defined(KERNEL) || defined(_KERNEL) 207 208 #ifndef USE_ISPPP 209 210 void sppp_attach (struct ifnet *ifp); 211 void sppp_detach (struct ifnet *ifp); 212 void sppp_input (struct ifnet *ifp, struct mbuf *m); 213 214 #if defined(__FreeBSD_version) && __FreeBSD_version >= 300003 215 int sppp_ioctl (struct ifnet *ifp, u_long cmd, void *data); 216 #else 217 #ifdef __FreeBSD__ 218 int sppp_ioctl (struct ifnet *ifp, int cmd, void *data); 219 #else 220 int sppp_ioctl (struct ifnet *ifp, u_long cmd, void *data); 221 #endif 222 #endif 223 224 struct mbuf *sppp_dequeue (struct ifnet *ifp); 225 struct mbuf *sppp_pick(struct ifnet *ifp); 226 int sppp_isempty (struct ifnet *ifp); 227 void sppp_flush (struct ifnet *ifp); 228 229 #else /* USE_ISPPP */ 230 231 void isppp_attach (struct ifnet *ifp); 232 void isppp_detach (struct ifnet *ifp); 233 void isppp_input (struct ifnet *ifp, struct mbuf *m); 234 235 #if defined(__FreeBSD_version) && __FreeBSD_version >= 300003 236 int isppp_ioctl (struct ifnet *ifp, u_long cmd, void *data); 237 #else 238 #ifdef __FreeBSD__ 239 int isppp_ioctl (struct ifnet *ifp, int cmd, void *data); 240 #else 241 int isppp_ioctl (struct ifnet *ifp, u_long cmd, void *data); 242 #endif 243 #endif 244 245 struct mbuf *isppp_dequeue (struct ifnet *ifp); 246 struct mbuf *isppp_pick(struct ifnet *ifp); 247 int isppp_isempty (struct ifnet *ifp); 248 void isppp_flush (struct ifnet *ifp); 249 #endif /* USE_ISPPP */ 250 251 #endif /* KERNEL */ 252 253 #endif /* !_NETISDN_I4B_ISPPP_H_ */ 254