NetBSD/sys/net/if_stripvar.h

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2007-07-15 01:02:36 +04:00
/* $NetBSD: if_stripvar.h,v 1.19 2007/07/14 21:02:42 ad Exp $ */
#ifndef _NET_IF_STRIPVAR_H_
#define _NET_IF_STRIPVAR_H_
/*
* Definitions for STRIP interface data structures
*/
struct strip_softc {
struct ifnet sc_if; /* network-visible interface */
int sc_unit; /* XXX unit number */
struct ifqueue sc_fastq; /* interactive output queue */
struct ifqueue sc_inq; /* input queue */
struct tty *sc_ttyp; /* pointer to tty structure */
struct callout sc_timo_ch; /* timeout callout */
u_char *sc_mp; /* pointer to next available buf char */
u_char *sc_ep; /* pointer to last available buf char */
u_char *sc_pktstart; /* pointer to beginning of packet */
struct mbuf *sc_mbuf; /* input buffer */
u_char *sc_rxbuf; /* input destuffing buffer */
u_char *sc_txbuf; /* output stuffing buffer */
u_int sc_flags; /* see below */
long sc_oqlen; /* previous output queue size */
long sc_otimeout; /* number of times output's stalled */
void *sc_si; /* softintr handle */
#ifdef __NetBSD__
int sc_oldbufsize; /* previous output buffer size */
int sc_oldbufquot; /* previous output buffer quoting */
#endif
#ifdef INET /* XXX */
struct slcompress sc_comp; /* tcp compression data */
#endif
int sc_state; /* Radio reset state-machine */
#define ST_ALIVE 0x0 /* answered probe */
#define ST_PROBE_SENT 0x1 /* probe sent, answer pending */
#define ST_DEAD 0x2 /* no answer to probe; do reset */
long sc_statetimo; /* When (secs) current state ends */
struct bintime sc_lastpacket; /* for watchdog */
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LIST_ENTRY(strip_softc) sc_iflist;
};
/* Internal flags */
#define SC_ERROR 0x0001 /* Incurred error reading current pkt*/
#define SC_TIMEOUT 0x00000400 /* timeout is currently pending */
/* visible flags */
#define SC_COMPRESS IFF_LINK0 /* compress TCP traffic */
#define SC_NOICMP IFF_LINK1 /* supress ICMP traffic */
#define SC_AUTOCOMP IFF_LINK2 /* auto-enable TCP compression */
#ifdef _KERNEL
void stripattach(void);
#endif /* _KERNEL */
#endif /* !_NET_IF_STRIPVAR_H_ */