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freebsd-dev/usr.sbin/ppp/bundle.h
Brian Somers c8b9fb53a1 Handle hardware-imposed MTU/MRU limitations. PPPoE will no longer 
allow MRU/MTU negotiations to exceed 1492.

Add an optional ``max'' specifier to ``set m[rt]u'', ie.

	set mtu max 1480

Bump the ppp version number.

Sponsored by:	Monzoon Networks AG and FreeBSD Services Limited
2001-06-18 14:59:36 +00:00

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/*-
* Copyright (c) 1998 Brian Somers <brian@Awfulhak.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#define PHASE_DEAD 0 /* Link is dead */
#define PHASE_ESTABLISH 1 /* Establishing link */
#define PHASE_AUTHENTICATE 2 /* Being authenticated */
#define PHASE_NETWORK 3 /* We're alive ! */
#define PHASE_TERMINATE 4 /* Terminating link */
/* cfg.opt bit settings */
#define OPT_FILTERDECAP 0x0001
#define OPT_IDCHECK 0x0002
#define OPT_IFACEALIAS 0x0004
#define OPT_KEEPSESSION 0x0008
#define OPT_LOOPBACK 0x0010
#define OPT_PASSWDAUTH 0x0020
#define OPT_PROXY 0x0040
#define OPT_PROXYALL 0x0080
#define OPT_SROUTES 0x0100
#define OPT_TCPMSSFIXUP 0x0200
#define OPT_THROUGHPUT 0x0400
#define OPT_UTMP 0x0800
#define MAX_ENDDISC_CLASS 5
#define Enabled(b, o) ((b)->cfg.opt & (o))
/* AutoAdjust() values */
#define AUTO_UP 1
#define AUTO_DOWN 2
struct sockaddr_un;
struct datalink;
struct physical;
struct link;
struct server;
struct prompt;
struct iface;
struct bundle {
struct fdescriptor desc; /* really all our datalinks */
int unit; /* The device/interface unit number */
struct {
char Name[20]; /* The /dev/XXXX name */
int fd; /* The /dev/XXXX descriptor */
unsigned header : 1; /* Family header sent & received ? */
} dev;
u_long bandwidth; /* struct tuninfo speed */
struct iface *iface; /* Interface information */
int routing_seq; /* The current routing sequence number */
u_int phase; /* Curent phase */
struct {
int all; /* Union of all physical::type's */
int open; /* Union of all open physical::type's */
} phys_type;
unsigned CleaningUp : 1; /* Going to exit.... */
unsigned NatEnabled : 1; /* Are we using libalias ? */
struct fsm_parent fsm; /* Our callback functions */
struct datalink *links; /* Our data links */
time_t upat; /* When the link came up */
struct {
struct {
int timeout; /* NCP Idle timeout value */
int min_timeout; /* Don't idle out before this */
} idle;
struct {
char name[AUTHLEN]; /* PAP/CHAP system name */
char key[AUTHLEN]; /* PAP/CHAP key */
} auth;
unsigned opt; /* Uses OPT_ bits from above */
char label[50]; /* last thing `load'ed */
u_short ifqueue; /* Interface queue size */
struct {
int timeout; /* How long to leave the output queue choked */
} choked;
} cfg;
struct {
struct ipcp ipcp; /* Our IPCP FSM */
struct mp mp; /* Our MP */
} ncp;
struct {
struct filter in; /* incoming packet filter */
struct filter out; /* outgoing packet filter */
struct filter dial; /* dial-out packet filter */
struct filter alive; /* keep-alive packet filter */
} filter;
struct {
struct pppTimer timer; /* timeout after cfg.idle_timeout */
time_t done;
} idle;
struct {
int fd; /* write status here */
} notify;
struct {
struct pppTimer timer; /* choked output queue timer */
} choked;
#ifndef NORADIUS
struct radius radius; /* Info retrieved from radius server */
struct radacct radacct;
#endif
};
#define descriptor2bundle(d) \
((d)->type == BUNDLE_DESCRIPTOR ? (struct bundle *)(d) : NULL)
extern struct bundle *bundle_Create(const char *, int, int);
extern void bundle_Destroy(struct bundle *);
extern const char *bundle_PhaseName(struct bundle *);
#define bundle_Phase(b) ((b)->phase)
extern void bundle_NewPhase(struct bundle *, u_int);
extern void bundle_LinksRemoved(struct bundle *);
extern int bundle_LinkIsUp(const struct bundle *);
extern void bundle_Close(struct bundle *, const char *, int);
extern void bundle_Down(struct bundle *, int);
extern void bundle_Open(struct bundle *, const char *, int, int);
extern void bundle_LinkClosed(struct bundle *, struct datalink *);
extern int bundle_ShowLinks(struct cmdargs const *);
extern int bundle_ShowStatus(struct cmdargs const *);
extern void bundle_StartIdleTimer(struct bundle *, unsigned secs);
extern void bundle_SetIdleTimer(struct bundle *, int, int);
extern void bundle_StopIdleTimer(struct bundle *);
extern int bundle_IsDead(struct bundle *);
extern struct datalink *bundle2datalink(struct bundle *, const char *);
extern void bundle_RegisterDescriptor(struct bundle *, struct fdescriptor *);
extern void bundle_UnRegisterDescriptor(struct bundle *, struct fdescriptor *);
extern void bundle_SetTtyCommandMode(struct bundle *, struct datalink *);
extern int bundle_DatalinkClone(struct bundle *, struct datalink *,
const char *);
extern void bundle_DatalinkRemove(struct bundle *, struct datalink *);
extern void bundle_CleanDatalinks(struct bundle *);
extern void bundle_SetLabel(struct bundle *, const char *);
extern const char *bundle_GetLabel(struct bundle *);
extern void bundle_SendDatalink(struct datalink *, int, struct sockaddr_un *);
extern int bundle_LinkSize(void);
extern void bundle_ReceiveDatalink(struct bundle *, int);
extern int bundle_SetMode(struct bundle *, struct datalink *, int);
extern int bundle_RenameDatalink(struct bundle *, struct datalink *,
const char *);
extern void bundle_setsid(struct bundle *, int);
extern void bundle_LockTun(struct bundle *);
extern int bundle_HighestState(struct bundle *);
extern int bundle_Exception(struct bundle *, int);
extern void bundle_AdjustFilters(struct bundle *, struct in_addr *,
struct in_addr *);
extern void bundle_AdjustDNS(struct bundle *, struct in_addr [2]);
extern void bundle_CalculateBandwidth(struct bundle *);
extern void bundle_AutoAdjust(struct bundle *, int, int);
extern int bundle_WantAutoloadTimer(struct bundle *);
extern void bundle_ChangedPID(struct bundle *);
extern void bundle_Notify(struct bundle *, char);
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