2 * Defines for synchronous PPP/Cisco link level subroutines.
4 * Copyright (C) 1994 Cronyx Ltd.
5 * Author: Serge Vakulenko, <vak@cronyx.ru>
7 * Heavily revamped to conform to RFC 1661.
8 * Copyright (C) 1997, Joerg Wunsch.
10 * This software is distributed with NO WARRANTIES, not even the implied
11 * warranties for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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.
17 * From: Version 2.0, Fri Oct 6 20:39:21 MSK 1995
19 * From: if_sppp.h,v 1.14 1999/03/30 13:28:26 phk Exp
21 * $Id: i4b_isppp.h,v 1.5 2000/07/18 15:05:37 hm Exp $
23 * $FreeBSD: src/sys/i386/include/i4b_isppp.h,v 1.1.2.2 2001/09/28 07:43:19 gj Exp $
24 * $DragonFly: src/sys/net/i4b/include/i386/i4b_isppp.h,v 1.6 2005/06/15 07:15:03 asmodai Exp $
30 #define SPPP_VJ /* use VJ compression */
35 #include <netinet/in_systm.h>
36 #include <netinet/ip.h>
37 #include <net/slcompress.h>
41 #define IDX_LCP 0 /* idx into state table */
44 u_long opts; /* LCP options to send (bitfield) */
45 u_long magic; /* local magic number */
46 u_long mru; /* our max receive unit */
47 u_long their_mru; /* their max receive unit */
48 u_long protos; /* bitmask of protos that are started */
49 u_char echoid; /* id of last keepalive echo request */
50 /* restart max values, see RFC 1661 */
57 #define IDX_IPCP 1 /* idx into state table */
60 u_long opts; /* IPCP options to send (bitfield) */
62 #define IPCP_HISADDR_SEEN 1 /* have seen his address already */
63 #define IPCP_MYADDR_DYN 2 /* my address is dynamically assigned */
64 #define IPCP_MYADDR_SEEN 4 /* have seen his address already */
65 #define IPCP_VJ 8 /* We can use VJ compression */
66 int max_state; /* Max-Slot-Id */
67 int compress_cid; /* Comp-Slot-Id */
70 #define AUTHNAMELEN 42
74 u_short proto; /* authentication protocol to use */
76 #define AUTHFLAG_NOCALLOUT 1 /* do not require authentication on */
78 #define AUTHFLAG_NORECHALLENGE 2 /* do not re-challenge CHAP */
79 u_char name[AUTHNAMELEN]; /* system identification name */
80 u_char secret[AUTHKEYLEN]; /* secret password */
81 u_char challenge[AUTHKEYLEN]; /* random challenge */
87 #define IDX_COUNT (IDX_CHAP + 1) /* bump this when adding cp's! */
90 * Don't change the order of this. Ordering the phases this way allows
91 * for a comparision of ``pp_phase >= PHASE_AUTHENTICATE'' in order to
92 * know whether LCP is up.
95 PHASE_DEAD, PHASE_ESTABLISH, PHASE_TERMINATE,
96 PHASE_AUTHENTICATE, PHASE_NETWORK
100 /* NB: pp_if _must_ be first */
101 struct ifnet pp_if; /* network interface data */
102 struct ifqueue pp_fastq; /* fast output queue */
103 struct ifqueue pp_cpq; /* PPP control protocol queue */
104 struct sppp *pp_next; /* next interface in keepalive list */
105 u_int pp_mode; /* major protocol modes (cisco/ppp/...) */
106 u_int pp_flags; /* sub modes */
107 u_short pp_alivecnt; /* keepalive packets counter */
108 u_short pp_loopcnt; /* loopback detection counter */
109 u_long pp_seq; /* local sequence number */
110 u_long pp_rseq; /* remote sequence number */
113 enum ppp_phase pp_phase; /* phase we're currently in */
114 int state[IDX_COUNT]; /* state machine */
115 u_char confid[IDX_COUNT]; /* id of last configuration request */
116 int rst_counter[IDX_COUNT]; /* restart counter */
117 int fail_counter[IDX_COUNT]; /* negotiation failure counter */
118 struct callout timeout[IDX_COUNT]; /* per-proto and if callouts */
119 struct callout pap_my_to; /* PAP needs one more... */
120 struct slcp lcp; /* LCP params */
121 struct sipcp ipcp; /* IPCP params */
122 struct sauth myauth; /* auth params, i'm peer */
123 struct sauth hisauth; /* auth params, i'm authenticator */
125 int enable_vj; /* enable VJ negotiation */
126 struct slcompress pp_comp; /* for VJ compression */
129 * These functions are filled in by sppp_attach(), and are
130 * expected to be used by the lower layer (hardware) drivers
131 * in order to communicate the (un)availability of the
132 * communication link. Lower layer drivers that are always
133 * ready to communicate (like hardware HDLC) can shortcut
134 * pp_up from pp_tls, and pp_down from pp_tlf.
136 void (*pp_up)(struct sppp *sp);
137 void (*pp_down)(struct sppp *sp);
139 * These functions need to be filled in by the lower layer
140 * (hardware) drivers if they request notification from the
141 * PPP layer whether the link is actually required. They
142 * correspond to the tls and tlf actions.
144 void (*pp_tls)(struct sppp *sp);
145 void (*pp_tlf)(struct sppp *sp);
147 * These (optional) functions may be filled by the hardware
148 * driver if any notification of established connections
149 * (currently: IPCP up) is desired (pp_con) or any internal
150 * state change of the interface state machine should be
151 * signaled for monitoring purposes (pp_chg).
153 void (*pp_con)(struct sppp *sp);
154 void (*pp_chg)(struct sppp *sp, int new_state);
155 /* These two fields are for use by the lower layer */
160 #define PP_KEEPALIVE 0x01 /* use keepalive protocol */
161 #define PP_CALLIN 0x08 /* we are being called */
162 #define PP_NEEDAUTH 0x10 /* remote requested authentication */
165 #define PP_MTU 1500 /* default/minimal MRU */
166 #define PP_MAX_MRU 2048 /* maximal MRU we want to negotiate */
169 * Definitions to pass struct sppp data down into the kernel using the
170 * SIOC[SG]IFGENERIC ioctl interface.
172 * In order to use this, create a struct spppreq, fill in the cmd
173 * field with SPPPIOGDEFS, and put the address of this structure into
174 * the ifr_data portion of a struct ifreq. Pass this struct to a
175 * SIOCGIFGENERIC ioctl. Then replace the cmd field by SPPPIOCDEFS,
176 * modify the defs field as desired, and pass the struct ifreq now
177 * to a SIOCSIFGENERIC ioctl.
180 #define SPPPIOGDEFS ((caddr_t)(('S' << 24) + (1 << 16) + sizeof(struct sppp)))
181 #define SPPPIOSDEFS ((caddr_t)(('S' << 24) + (2 << 16) + sizeof(struct sppp)))
188 #ifndef SIOCSIFGENERIC
189 #define SIOCSIFGENERIC _IOW('i', 57, struct ifreq) /* generic IF set op */
192 #ifndef SIOCGIFGENERIC
193 #define SIOCGIFGENERIC _IOWR('i', 58, struct ifreq) /* generic IF get op */
196 #if defined(KERNEL) || defined(_KERNEL)
200 void sppp_attach (struct ifnet *ifp);
201 void sppp_detach (struct ifnet *ifp);
202 void sppp_input (struct ifnet *ifp, struct mbuf *m);
204 int sppp_ioctl (struct ifnet *ifp, u_long cmd, void *data);
206 struct mbuf *sppp_dequeue (struct ifnet *ifp);
207 struct mbuf *sppp_pick(struct ifnet *ifp);
208 int sppp_isempty (struct ifnet *ifp);
209 void sppp_flush (struct ifnet *ifp);
211 #else /* USE_ISPPP */
213 void isppp_attach (struct ifnet *ifp);
214 void isppp_detach (struct ifnet *ifp);
215 void isppp_input (struct ifnet *ifp, struct mbuf *m);
217 int isppp_ioctl (struct ifnet *ifp, u_long cmd, void *data);
219 struct mbuf *isppp_dequeue (struct ifnet *ifp);
220 struct mbuf *isppp_pick(struct ifnet *ifp);
221 int isppp_isempty (struct ifnet *ifp);
222 void isppp_flush (struct ifnet *ifp);
223 #endif /* USE_ISPPP */
227 #endif /* _I4B_ISPPP_H_ */