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Diffstat (limited to 'usr.sbin/ppp/fsm.h')
-rw-r--r-- | usr.sbin/ppp/fsm.h | 201 |
1 files changed, 0 insertions, 201 deletions
diff --git a/usr.sbin/ppp/fsm.h b/usr.sbin/ppp/fsm.h deleted file mode 100644 index d233899..0000000 --- a/usr.sbin/ppp/fsm.h +++ /dev/null @@ -1,201 +0,0 @@ -/*- - * Copyright (c) 1996 - 2001 Brian Somers <brian@Awfulhak.org> - * based on work by Toshiharu OHNO <tony-o@iij.ad.jp> - * Internet Initiative Japan, Inc (IIJ) - * 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. - * - * $FreeBSD$ - */ - -/* - * State of machine - */ -#define ST_INITIAL 0 -#define ST_STARTING 1 -#define ST_CLOSED 2 -#define ST_STOPPED 3 -#define ST_CLOSING 4 -#define ST_STOPPING 5 -#define ST_REQSENT 6 -#define ST_ACKRCVD 7 -#define ST_ACKSENT 8 -#define ST_OPENED 9 - -#define ST_MAX 10 -#define ST_UNDEF -1 - -#define MODE_REQ 0 -#define MODE_NAK 1 -#define MODE_REJ 2 -#define MODE_NOP 3 -#define MODE_ACK 4 /* pseudo mode for ccp negotiations */ - -#define OPEN_PASSIVE -1 - -#define FSM_REQ_TIMER 1 -#define FSM_TRM_TIMER 2 - -#define FSM_OPTLEN 100 - -struct fsm; - -struct fsm_retry { - u_int timeout; /* FSM retry frequency */ - u_int maxreq; /* Max Config REQ retries */ - u_int maxtrm; /* Max Term REQ retries */ -}; - -struct fsm_decode { - u_char ack[FSM_OPTLEN], *ackend; - u_char nak[FSM_OPTLEN], *nakend; - u_char rej[FSM_OPTLEN], *rejend; -}; - -struct fsm_callbacks { - int (*LayerUp)(struct fsm *); /* Layer is now up (tlu) */ - void (*LayerDown)(struct fsm *); /* About to come down (tld) */ - void (*LayerStart)(struct fsm *); /* Layer about to start (tls) */ - void (*LayerFinish)(struct fsm *); /* Layer now down (tlf) */ - void (*InitRestartCounter)(struct fsm *, int);/* Set fsm timer load */ - void (*SendConfigReq)(struct fsm *); /* Send REQ please */ - void (*SentTerminateReq)(struct fsm *); /* Term REQ just sent */ - void (*SendTerminateAck)(struct fsm *, u_char); /* Send Term ACK please */ - void (*DecodeConfig)(struct fsm *, u_char *, u_char *, int, - struct fsm_decode *); /* Deal with incoming data */ - int (*RecvResetReq)(struct fsm *fp); /* Reset output */ - void (*RecvResetAck)(struct fsm *fp, u_char); /* Reset input */ -}; - -struct fsm_parent { - void (*LayerStart) (void *, struct fsm *); /* tls */ - void (*LayerUp) (void *, struct fsm *); /* tlu */ - void (*LayerDown) (void *, struct fsm *); /* tld */ - void (*LayerFinish) (void *, struct fsm *); /* tlf */ - void *object; -}; - -struct link; -struct bundle; - -struct fsm { - const char *name; /* Name of protocol */ - u_short proto; /* Protocol number */ - u_short min_code; - u_short max_code; - int open_mode; /* Delay before config REQ (-1 forever) */ - unsigned state; /* State of the machine */ - u_char reqid; /* Next request id */ - int restart; /* Restart counter value */ - - struct { - int reqs; /* Max config REQs before a close() */ - int naks; /* Max config NAKs before a close() */ - int rejs; /* Max config REJs before a close() */ - } more; - - struct pppTimer FsmTimer; /* Restart Timer */ - struct pppTimer OpenTimer; /* Delay before opening */ - - /* - * This timer times the ST_STOPPED state out after the given value - * (specified via "set stopped ..."). Although this isn't specified in the - * rfc, the rfc *does* say that "the application may use higher level - * timers to avoid deadlock". The StoppedTimer takes effect when the other - * side ABENDs rather than going into ST_ACKSENT (and sending the ACK), - * causing ppp to time out and drop into ST_STOPPED. At this point, - * nothing will change this state :-( - */ - struct pppTimer StoppedTimer; - int LogLevel; - - /* The link layer active with this FSM (may be our bundle below) */ - struct link *link; - - /* Our high-level link */ - struct bundle *bundle; - - const struct fsm_parent *parent; - const struct fsm_callbacks *fn; -}; - -struct fsmheader { - u_char code; /* Request code */ - u_char id; /* Identification */ - u_short length; /* Length of packet */ -}; - -#define CODE_CONFIGREQ 1 -#define CODE_CONFIGACK 2 -#define CODE_CONFIGNAK 3 -#define CODE_CONFIGREJ 4 -#define CODE_TERMREQ 5 -#define CODE_TERMACK 6 -#define CODE_CODEREJ 7 -#define CODE_PROTOREJ 8 -#define CODE_ECHOREQ 9 /* Used in LCP */ -#define CODE_ECHOREP 10 /* Used in LCP */ -#define CODE_DISCREQ 11 -#define CODE_IDENT 12 /* Used in LCP Extension */ -#define CODE_TIMEREM 13 /* Used in LCP Extension */ -#define CODE_RESETREQ 14 /* Used in CCP */ -#define CODE_RESETACK 15 /* Used in CCP */ - -struct fsm_opt_hdr { - u_char id; - u_char len; -} __packed; - -#define MAX_FSM_OPT_LEN 52 -struct fsm_opt { - struct fsm_opt_hdr hdr; - u_char data[MAX_FSM_OPT_LEN-2]; -}; - -#define INC_FSM_OPT(ty, length, o) \ - do { \ - (o)->hdr.id = (ty); \ - (o)->hdr.len = (length); \ - (o) = (struct fsm_opt *)((u_char *)(o) + (length)); \ - } while (0) - - -extern void fsm_Init(struct fsm *, const char *, u_short, int, int, int, - struct bundle *, struct link *, const struct fsm_parent *, - struct fsm_callbacks *, const char * const [3]); -extern void fsm_Output(struct fsm *, u_int, u_int, u_char *, unsigned, int); -extern void fsm_Open(struct fsm *); -extern void fsm_Up(struct fsm *); -extern void fsm_Down(struct fsm *); -extern void fsm_Input(struct fsm *, struct mbuf *); -extern void fsm_Close(struct fsm *); -extern int fsm_NullRecvResetReq(struct fsm *); -extern void fsm_NullRecvResetAck(struct fsm *, u_char); -extern void fsm_Reopen(struct fsm *); -extern void fsm2initial(struct fsm *); -extern const char *State2Nam(u_int); -extern struct fsm_opt *fsm_readopt(u_char **); -extern void fsm_rej(struct fsm_decode *, const struct fsm_opt *); -extern void fsm_ack(struct fsm_decode *, const struct fsm_opt *); -extern void fsm_nak(struct fsm_decode *, const struct fsm_opt *); -extern void fsm_opt_normalise(struct fsm_decode *); |