X-Git-Url: http://git.ozlabs.org/?p=ppp.git;a=blobdiff_plain;f=include%2Fnet%2Fif_ppp.h;h=5433cfbda3c7d6bd340a6eaeda6c60165954d093;hp=7f42e7325e115a411c09eb32350b174cf8f21bab;hb=3f9351d1f16d272355e1958ff3038fd168f23a9b;hpb=c0d0d68d46c49878404fa4c16b2b40e29804ccc3;ds=sidebyside diff --git a/include/net/if_ppp.h b/include/net/if_ppp.h index 7f42e73..5433cfb 100644 --- a/include/net/if_ppp.h +++ b/include/net/if_ppp.h @@ -1,3 +1,5 @@ +/* $Id: if_ppp.h,v 1.12 1995/04/24 02:40:23 paulus Exp $ */ + /* * if_ppp.h - Point-to-Point Protocol definitions. * @@ -15,97 +17,20 @@ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. - * - * $Id: if_ppp.h,v 1.4 1994/09/01 00:45:32 paulus Exp $ */ #ifndef _IF_PPP_H_ #define _IF_PPP_H_ -/* - * Standard PPP header. - */ -struct ppp_header { - u_char ph_address; /* Address Field */ - u_char ph_control; /* Control Field */ - u_short ph_protocol; /* Protocol Field */ -}; - -#define PPP_HDRLEN 4 /* sizeof(struct ppp_header) must be 4 */ -#define PPP_FCSLEN 2 /* octets for FCS */ - -#define PPP_ALLSTATIONS 0xff /* All-Stations broadcast address */ -#define PPP_UI 0x03 /* Unnumbered Information */ -#define PPP_FLAG 0x7e /* Flag Sequence */ -#define PPP_ESCAPE 0x7d /* Asynchronous Control Escape */ -#define PPP_TRANS 0x20 /* Asynchronous transparency modifier */ - -/* - * Protocol field values. - */ -#define PPP_IP 0x21 /* Internet Protocol */ -#define PPP_XNS 0x25 /* Xerox NS */ -#define PPP_VJC_COMP 0x2d /* VJ compressed TCP */ -#define PPP_VJC_UNCOMP 0x2f /* VJ uncompressed TCP */ -#define PPP_COMP 0xfd /* compressed packet */ -#define PPP_LCP 0xc021 /* Link Control Protocol */ -#define PPP_CCP 0x80fd /* Compression Control Protocol */ - -/* - * Important FCS values. - */ -#define PPP_INITFCS 0xffff /* Initial FCS value */ -#define PPP_GOODFCS 0xf0b8 /* Good final FCS value */ -#define PPP_FCS(fcs, c) (((fcs) >> 8) ^ fcstab[((fcs) ^ (c)) & 0xff]) - /* * Packet sizes */ #define PPP_MTU 1500 /* Default MTU (size of Info field) */ -#define PPP_MRU 1500 /* Default MRU (max receive unit) */ #define PPP_MAXMRU 65000 /* Largest MRU we allow */ -/* Extended asyncmap - allows any character to be escaped. */ -typedef u_long ext_accm[8]; - /* - * Structure describing each ppp unit. + * Bit definitions for flags. */ -struct ppp_softc { - struct ifnet sc_if; /* network-visible interface */ - u_int sc_flags; /* see below */ - void *sc_devp; /* pointer to device-dependent structure */ - int (*sc_start)(); /* start routine */ - short sc_mru; /* max receive unit */ - pid_t sc_xfer; /* used in xferring unit to another dev */ - struct ifqueue sc_inq; /* TTY side input queue */ - struct ifqueue sc_fastq; /* IP interactive output packet queue */ -#ifdef VJC - struct slcompress sc_comp; /* vjc control buffer */ -#endif - u_int sc_bytessent; /* count of octets sent */ - u_int sc_bytesrcvd; /* count of octets received */ - caddr_t sc_bpf; /* hook for BPF */ - struct compressor *sc_xcomp; /* transmit compressor */ - void *sc_xc_state; /* transmit compressor state */ - struct compressor *sc_rcomp; /* receive decompressor */ - void *sc_rc_state; /* receive decompressor state */ - - /* Device-dependent part for async lines. */ - ext_accm sc_asyncmap; /* async control character map */ - u_long sc_rasyncmap; /* receive async control char map */ - struct mbuf *sc_outm; /* mbuf chain being output currently */ - struct mbuf *sc_m; /* pointer to input mbuf chain */ - struct mbuf *sc_mc; /* pointer to current input mbuf */ - char *sc_mp; /* pointer to next char in input mbuf */ - short sc_ilen; /* length of input-packet-so-far */ - u_short sc_fcs; /* FCS so far (input) */ - u_short sc_outfcs; /* FCS so far for output packet */ - u_char sc_rawin[16]; /* chars as received */ - int sc_rawin_count; /* # in sc_rawin */ -}; - -/* flags */ #define SC_COMP_PROT 0x00000001 /* protocol compression (output) */ #define SC_COMP_AC 0x00000002 /* header compression (output) */ #define SC_COMP_TCP 0x00000004 /* TCP (VJ) compression (output) */ @@ -114,34 +39,34 @@ struct ppp_softc { #define SC_REJ_COMP_TCP 0x00000020 /* reject TCP (VJ) comp. on input */ #define SC_CCP_OPEN 0x00000040 /* Look at CCP packets */ #define SC_CCP_UP 0x00000080 /* May send/recv compressed packets */ -#define SC_ENABLE_IP 0x00000100 /* IP packets may be exchanged */ -#define SC_XCOMP_RUN 0x00001000 /* compressor has been inited */ -#define SC_RCOMP_RUN 0x00002000 /* decompressor has been inited */ #define SC_DEBUG 0x00010000 /* enable debug messages */ #define SC_LOG_INPKT 0x00020000 /* log contents of good pkts recvd */ #define SC_LOG_OUTPKT 0x00040000 /* log contents of pkts sent */ #define SC_LOG_RAWIN 0x00080000 /* log all chars received */ #define SC_LOG_FLUSH 0x00100000 /* log all chars flushed */ -#define SC_MASK 0x0fffffff /* bits that user can change */ - -/* state bits */ -#define SC_ESCAPED 0x80000000 /* saw a PPP_ESCAPE */ -#define SC_FLUSH 0x40000000 /* flush input until next PPP_FLAG */ #define SC_RCV_B7_0 0x01000000 /* have rcvd char with bit 7 = 0 */ #define SC_RCV_B7_1 0x02000000 /* have rcvd char with bit 7 = 1 */ #define SC_RCV_EVNP 0x04000000 /* have rcvd char with even parity */ #define SC_RCV_ODDP 0x08000000 /* have rcvd char with odd parity */ +#define SC_MASK 0x0fff00ff /* bits that user can change */ /* - * What to do with network protocol (NP) packets. + * State bits in sc_flags, not changeable by user. */ +#define SC_TIMEOUT 0x00000400 /* timeout is currently pending */ +#define SC_VJ_RESET 0x00000800 /* need to reset VJ decomp */ +#define SC_COMP_RUN 0x00001000 /* compressor has been inited */ +#define SC_DECOMP_RUN 0x00002000 /* decompressor has been inited */ +#define SC_DC_ERROR 0x00004000 /* non-fatal decomp error detected */ +#define SC_DC_FERROR 0x00008000 /* fatal decomp error detected */ +#define SC_TBUSY 0x10000000 /* xmitter doesn't need a packet yet */ +#define SC_PKTLOST 0x20000000 /* have lost or dropped a packet */ +#define SC_FLUSH 0x40000000 /* flush input until next PPP_FLAG */ +#define SC_ESCAPED 0x80000000 /* saw a PPP_ESCAPE */ -enum NPmode { - NPMODE_PASS, /* pass the packet through */ - NPMODE_DROP, /* silently drop the packet */ - NPMODE_ERROR, /* return an error */ - NPMODE_QUEUE /* save it up for later. */ -}; +/* + * Ioctl definitions. + */ struct npioctl { int protocol; /* PPP procotol, e.g. PPP_IP */ @@ -155,7 +80,20 @@ struct ppp_option_data { int transmit; }; -/* this stuff doesn't belong here... */ +struct ifpppstatsreq { + char ifr_name[IFNAMSIZ]; + struct ppp_stats stats; +}; + +struct ifpppcstatsreq { + char ifr_name[IFNAMSIZ]; + struct ppp_comp_stats stats; +}; + +/* + * Ioctl definitions. + */ + #define PPPIOCGFLAGS _IOR('t', 90, int) /* get configuration flags */ #define PPPIOCSFLAGS _IOW('t', 89, int) /* set configuration flags */ #define PPPIOCGASYNCMAP _IOR('t', 88, int) /* get async map */ @@ -172,14 +110,21 @@ struct ppp_option_data { #define PPPIOCSCOMPRESS _IOW('t', 77, struct ppp_option_data) #define PPPIOCGNPMODE _IOWR('t', 76, struct npioctl) /* get NP mode */ #define PPPIOCSNPMODE _IOW('t', 75, struct npioctl) /* set NP mode */ +#define PPPIOCGIDLE _IOR('t', 74, struct ppp_idle) /* get idle time */ -#ifdef ultrix -#define ifr_mtu ifr_ifru.ifru_metric -#endif +/* PPPIOC[GS]MTU are alternatives to SIOC[GS]IFMTU, used under Ultrix */ +#define PPPIOCGMTU _IOR('t', 73, int) /* get interface MTU */ +#define PPPIOCSMTU _IOW('t', 72, int) /* set interface MTU */ + +/* + * These two are interface ioctls so that pppstats can do them on + * a socket without having to open the serial device. + */ +#define SIOCGPPPSTATS _IOWR('i', 123, struct ifpppstatsreq) +#define SIOCGPPPCSTATS _IOWR('i', 122, struct ifpppcstatsreq) -/* old copies of PPP may have defined this */ #if !defined(ifr_mtu) -#define ifr_mtu ifr_metric +#define ifr_mtu ifr_ifru.ifru_metric #endif #endif /* _IF_PPP_H_ */