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- /*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
- *
- * @APPLE_LICENSE_HEADER_START@
- *
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License"). You may not use this file except in compliance with the
- * License. Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
- *
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
- * License for the specific language governing rights and limitations
- * under the License.
- *
- * @APPLE_LICENSE_HEADER_END@
- */
- /*
- * Copyright (C) Dirk Husemann, Computer Science Department IV,
- * University of Erlangen-Nuremberg, Germany, 1990, 1991, 1992
- * Copyright (c) 1992, 1993
- * The Regents of the University of California. All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * Dirk Husemann and the Computer Science Department (IV) of
- * the University of Erlangen-Nuremberg, Germany.
- *
- * 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.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
- *
- * @(#)llc_var.h 8.1 (Berkeley) 6/10/93
- */
-
- #ifdef __STDC__
- /*
- * Forward structure declarations for function prototypes [sic].
- */
- struct llc;
- #endif
-
- #define NPAIDB_LINK 0
-
- struct npaidbentry {
- union {
- /* MAC,DLSAP -> CONS */
- struct {
- struct llc_linkcb *NE_link;
- struct rtentry *NE_rt;
- } NE;
- /* SAP info for unconfigured incoming calls */
- struct {
- u_short SI_class;
- #define LLC_CLASS_I 0x1
- #define LLC_CLASS_II 0x3
- #define LLC_CLASS_III 0x4 /* Future */
- #define LLC_CLASS_IV 0x7 /* Future */
- u_short SI_window;
- u_short SI_trace;
- u_short SI_xchxid;
- void (*SI_input)
- __P((struct mbuf *));
- caddr_t (*SI_ctlinput)
- __P((int, struct sockaddr *, caddr_t));
- } SI;
- } NESIun;
- };
- #define np_link NESIun.NE.NE_link
- #define np_rt NESIun.NE.NE_rt
- #define si_class NESIun.SI.SI_class
- #define si_window NESIun.SI.SI_window
- #define si_trace NESIun.SI.SI_trace
- #define si_xchxid NESIun.SI.SI_xchxid
- #define si_input NESIun.SI.SI_input
- #define si_ctlinput NESIun.SI.SI_ctlinput
-
- #define NPDL_SAPNETMASK 0x7e
-
- /*
- * Definitions for accessing bitfields/bitslices inside
- * LLC2 headers
- */
- struct bitslice {
- unsigned int bs_mask;
- unsigned int bs_shift;
- };
-
-
- #define i_z 0
- #define i_ns 1
- #define i_pf 0
- #define i_nr 1
- #define s_oz 2
- #define s_selector 3
- #define s_pf 0
- #define s_nr 1
- #define u_bb 2
- #define u_select_other 3
- #define u_pf 4
- #define u_select 5
- #define f_vs 1
- #define f_cr 0
- #define f_vr 1
- #define f_wxyzv 6
-
- #define LLCGBITS(Arg, Index) (((Arg) & llc_bitslice[(Index)].bs_mask) >> llc_bitslice[(Index)].bs_shift)
- #define LLCSBITS(Arg, Index, Val) (Arg) |= (((Val) << llc_bitslice[(Index)].bs_shift) & llc_bitslice[(Index)].bs_mask)
- #define LLCCSBITS(Arg, Index, Val) (Arg) = (((Val) << llc_bitslice[(Index)].bs_shift) & llc_bitslice[(Index)].bs_mask)
-
- extern struct bitslice llc_bitslice[];
-
- #define LLC_CMD 0
- #define LLC_RSP 1
- #define LLC_MAXCMDRSP 2
-
- /*
- * LLC events --- These events may either be frames received from the
- * remote LLC DSAP, request from the network layer user,
- * timer events from llc_timer(), or diagnostic events from
- * llc_input().
- */
-
- /* LLC frame types */
- #define LLCFT_INFO 0 * LLC_MAXCMDRSP
- #define LLCFT_RR 1 * LLC_MAXCMDRSP
- #define LLCFT_RNR 2 * LLC_MAXCMDRSP
- #define LLCFT_REJ 3 * LLC_MAXCMDRSP
- #define LLCFT_DM 4 * LLC_MAXCMDRSP
- #define LLCFT_SABME 5 * LLC_MAXCMDRSP
- #define LLCFT_DISC 6 * LLC_MAXCMDRSP
- #define LLCFT_UA 7 * LLC_MAXCMDRSP
- #define LLCFT_FRMR 8 * LLC_MAXCMDRSP
- #define LLCFT_UI 9 * LLC_MAXCMDRSP
- #define LLCFT_XID 10 * LLC_MAXCMDRSP
- #define LLCFT_TEST 11 * LLC_MAXCMDRSP
-
- /* LLC2 timer events */
- #define LLC_ACK_TIMER_EXPIRED 12 * LLC_MAXCMDRSP
- #define LLC_P_TIMER_EXPIRED 13 * LLC_MAXCMDRSP
- #define LLC_REJ_TIMER_EXPIRED 14 * LLC_MAXCMDRSP
- #define LLC_BUSY_TIMER_EXPIRED 15 * LLC_MAXCMDRSP
-
- /* LLC2 diagnostic events */
- #define LLC_INVALID_NR 16 * LLC_MAXCMDRSP
- #define LLC_INVALID_NS 17 * LLC_MAXCMDRSP
- #define LLC_BAD_PDU 18 * LLC_MAXCMDRSP
- #define LLC_LOCAL_BUSY_DETECTED 19 * LLC_MAXCMDRSP
- #define LLC_LOCAL_BUSY_CLEARED 20 * LLC_MAXCMDRSP
-
- /* Network layer user requests */
- /*
- * NL_CONNECT_REQUEST --- The user has requested that a data link connection
- * be established with a remote LLC DSAP.
- */
- #define NL_CONNECT_REQUEST 21 * LLC_MAXCMDRSP
- /*
- * NL_CONNECT_RESPONSE --- The user has accepted the data link connection.
- */
- #define NL_CONNECT_RESPONSE 22 * LLC_MAXCMDRSP
- /*
- * NL_RESET_REQUEST --- The user has requested that the data link with the
- * remote LLC DSAP be reset.
- */
- #define NL_RESET_REQUEST 23 * LLC_MAXCMDRSP
- /*
- * NL_RESET_RESPONSE --- The user has accepted the reset of the data link
- * connection.
- */
- #define NL_RESET_RESPONSE 24 * LLC_MAXCMDRSP
- /*
- * NL_DISCONNECT_REQUEST --- The user has requested that the data link
- * connection with remote LLC DSAP be terminated.
- */
- #define NL_DISCONNECT_REQUEST 25 * LLC_MAXCMDRSP
- /*
- * NL_DATA_REQUEST --- The user has requested that a data unit be sent ot the
- * remote LLC DSAP.
- */
- #define NL_DATA_REQUEST 26 * LLC_MAXCMDRSP
- /*
- * NL_INITIATE_PF_CYCLE --- The local LLC wants to initiate a P/F cycle.
- */
- #define NL_INITIATE_PF_CYCLE 27 * LLC_MAXCMDRSP
- /*
- * NL_LOCAL_BUSY_DETECTED --- The local entity has encountered a busy condition
- */
- #define NL_LOCAL_BUSY_DETECTED 28 * LLC_MAXCMDRSP
-
- #define LLCFT_NONE 255
-
- /* return message from state handlers */
-
- /*
- * LLC_CONNECT_INDICATION --- Inform the user that a connection has been
- * requested by a remote LLC SSAP.
- */
- #define LLC_CONNECT_INDICATION 1
- /*
- * LLC_CONNECT_CONFIRM --- The connection service component indicates that the
- * remote network entity has accepted the connection.
- */
- #define LLC_CONNECT_CONFIRM 2
- /*
- * LLC_DISCONNECT_INDICATION --- Inform the user that the remote network
- * entity has intiated disconnection of the data
- * link connection.
- */
- #define LLC_DISCONNECT_INDICATION 3
- /*
- * LLC_RESET_CONFIRM --- The connection service component indicates that the
- * remote network entity has accepted the reset.
- */
- #define LLC_RESET_CONFIRM 4
- /*
- * LLC_RESET_INDICATION_REMOTE --- The remote network entity or remote peer
- * has initiated a reset of the data link
- * connection.
- */
- #define LLC_RESET_INDICATION_REMOTE 5
- /*
- * LLC_RESET_INDICATION_LOCAL --- The local LLC has determined that the data
- * link connection is in need of
- * reinitialization.
- */
- #define LLC_RESET_INDICATION_LOCAL 6
- /*
- * LLC_FRMR_RECEIVED --- The local connection service component has received a
- * FRMR response PDU.
- */
- #define LLC_FRMR_RECEIVED 7
- /*
- * LLC_FRMR_SENT --- The local connection component has received an ivalid
- * PDU, and has sent a FRMR response PDU.
- */
- #define LLC_FRMR_SENT 8
- /*
- * LLC_DATA_INDICATION --- The connection service component passes the data
- * unit from the received I PDU to the user.
- */
- #define LLC_DATA_INDICATION 9
- /*
- * LLC_REMOTE_NOT_BUSY --- The remote LLC DSAP is no longer busy. The local
- * connection service component will now accept a
- * DATA_REQUEST.
- */
- #define LLC_REMOTE_NOT_BUSY 10
- /*
- * LLC_REMOTE_BUSY --- The remote LLC DSAP is busy. The local connection
- * service component will not accept a DATA_REQUEST.
- */
- #define LLC_REMOTE_BUSY 11
-
- /* Internal return code */
- #define LLC_PASSITON 255
-
- #define INFORMATION_CONTROL 0x00
- #define SUPERVISORY_CONTROL 0x02
- #define UNUMBERED_CONTROL 0x03
-
- /*
- * Other necessary definitions
- */
-
- #define LLC_MAX_SEQUENCE 128
- #define LLC_MAX_WINDOW 127
- #define LLC_WINDOW_SIZE 7
-
- /*
- * Don't we love this one? CCITT likes its bits 8=)
- */
- #define NLHDRSIZEGUESS 3
-
- /*
- * LLC control block
- */
-
- struct llc_linkcb {
- struct llccb_q {
- struct llccb_q *q_forw; /* admin chain */
- struct llccb_q *q_backw;
- } llcl_q;
- struct npaidbentry *llcl_sapinfo; /* SAP information */
- struct sockaddr_dl llcl_addr; /* link snpa address */
- struct rtentry *llcl_nlrt; /* layer 3 -> LLC */
- struct rtentry *llcl_llrt; /* LLC -> layer 3 */
- struct ifnet *llcl_if; /* our interface */
- caddr_t llcl_nlnext; /* cb for network layer */
- struct mbuf *llcl_writeqh; /* Write queue head */
- struct mbuf *llcl_writeqt; /* Write queue tail */
- struct mbuf **llcl_output_buffers;
- short llcl_timers[6]; /* timer array */
- long llcl_timerflags; /* flags signalling running timers */
- int (*llcl_statehandler)
- __P((struct llc_linkcb *, struct llc *, int, int, int));
- int llcl_P_flag;
- int llcl_F_flag;
- int llcl_S_flag;
- int llcl_DATA_flag;
- int llcl_REMOTE_BUSY_flag;
- int llcl_DACTION_flag; /* delayed action */
- int llcl_retry;
- /*
- * The following components deal --- in one way or the other ---
- * with the LLC2 window. Indicated by either [L] or [W] is the
- * domain of the specific component:
- *
- * [L] The domain is 0--LLC_MAX_WINDOW
- * [W] The domain is 0--llcl_window
- */
- short llcl_vr; /* next to receive [L] */
- short llcl_vs; /* next to send [L] */
- short llcl_nr_received; /* next frame to b ack'd [L] */
- short llcl_freeslot; /* next free slot [W] */
- short llcl_projvs; /* V(S) associated with freeslot */
- short llcl_slotsfree; /* free slots [W] */
- short llcl_window; /* window size */
- /*
- * In llcl_frmrinfo we jot down the last frmr info field, which we
- * need to do as we need to be able to resend it in the ERROR state.
- */
- struct frmrinfo llcl_frmrinfo; /* last FRMR info field */
- };
- #define llcl_frmr_pdu0 llcl_frmrinfo.rej_pdu_0
- #define llcl_frmr_pdu1 llcl_frmrinfo.rej_pdu_1
- #define llcl_frmr_control llcl_frmrinfo.frmr_control
- #define llcl_frmr_control_ext llcl_frmrinfo.frmr_control_ext
- #define llcl_frmr_cause llcl_frmrinfo.frmr_cause
-
- #define LQNEXT(l) (struct llc_linkcb *)((l)->llcl_q.q_forw)
- #define LQEMPTY (llccb_q.q_forw == &llccb_q)
- #define LQFIRST (struct llc_linkcb *)(llccb_q.q_forw)
- #define LQVALID(l) (!((struct llccb_q *)(l) == &llccb_q))
-
- #define LLC_ENQUEUE(l, m) if ((l)->llcl_writeqh == NULL) { \
- (l)->llcl_writeqh = (m); \
- (l)->llcl_writeqt = (m); \
- } else { \
- (l)->llcl_writeqt->m_nextpkt = (m); \
- (l)->llcl_writeqt = (m); \
- }
-
- #define LLC_DEQUEUE(l, m) if ((l)->llcl_writeqh == NULL) \
- (m) = NULL; \
- else { \
- (m) = (l)->llcl_writeqh; \
- (l)->llcl_writeqh = (l)->llcl_writeqh->m_nextpkt; \
- }
-
- #define LLC_SETFRAME(l, m) { \
- if ((l)->llcl_slotsfree > 0) { \
- (l)->llcl_slotsfree--; \
- (l)->llcl_output_buffers[(l)->llcl_freeslot] = (m); \
- (l)->llcl_freeslot = ((l)->llcl_freeslot+1) % (l)->llcl_window; \
- LLC_INC((l)->llcl_projvs); \
- } \
- }
-
- /*
- * handling of sockaddr_dl's
- */
-
- #define LLADDRLEN(s) ((s)->sdl_alen + (s)->sdl_nlen)
- #define LLSAPADDR(s) ((s)->sdl_data[LLADDRLEN(s)-1] & 0xff)
- #define LLSAPLOC(s, if) ((s)->sdl_nlen + (if)->if_addrlen)
-
- struct sdl_hdr {
- struct sockaddr_dl sdlhdr_dst;
- struct sockaddr_dl sdlhdr_src;
- long sdlhdr_len;
- };
-
- #define LLC_GETHDR(f,m) { \
- struct mbuf *_m = (struct mbuf *) (m); \
- if (_m) { \
- M_PREPEND(_m, LLC_ISFRAMELEN, M_DONTWAIT); \
- bzero(mtod(_m, caddr_t), LLC_ISFRAMELEN); \
- } else { \
- MGETHDR (_m, M_DONTWAIT, MT_HEADER); \
- if (_m != NULL) { \
- _m->m_pkthdr.len = _m->m_len = LLC_UFRAMELEN; \
- _m->m_next = _m->m_act = NULL; \
- bzero(mtod(_m, caddr_t), LLC_UFRAMELEN); \
- } else return; \
- } \
- (m) = _m; \
- (f) = mtod(m, struct llc *); \
- }
-
- #define LLC_NEWSTATE(l, LLCstate) (l)->llcl_statehandler = llc_state_##LLCstate
- #define LLC_STATEEQ(l, LLCstate) ((l)->llcl_statehandler == llc_state_##LLCstate ? 1 : 0)
-
- #define LLC_ACK_SHIFT 0
- #define LLC_P_SHIFT 1
- #define LLC_BUSY_SHIFT 2
- #define LLC_REJ_SHIFT 3
- #define LLC_AGE_SHIFT 4
- #define LLC_DACTION_SHIFT 5
-
- #define LLC_TIMER_NOTRUNNING 0
- #define LLC_TIMER_RUNNING 1
- #define LLC_TIMER_EXPIRED 2
-
- #define LLC_STARTTIMER(l, LLCtimer) { \
- (l)->llcl_timers[LLC_##LLCtimer##_SHIFT] = llc_##LLCtimer##_timer; \
- (l)->llcl_timerflags |= (1<<LLC_##LLCtimer##_SHIFT); \
- }
- #define LLC_STOPTIMER(l, LLCtimer) { \
- (l)->llcl_timers[LLC_##LLCtimer##_SHIFT] = 0; \
- (l)->llcl_timerflags &= ~(1<<LLC_##LLCtimer##_SHIFT); \
- }
- #define LLC_AGETIMER(l, LLCtimer) if ((l)->llcl_timers[LLC_##LLCtimer##_SHIFT] > 0) \
- (l)->llcl_timers[LLC_##LLCtimer##_SHIFT]--;
-
- #define LLC_TIMERXPIRED(l, LLCtimer) \
- (((l)->llcl_timerflags & (1<<LLC_##LLCtimer##_SHIFT)) ? \
- (((l)->llcl_timers[LLC_##LLCtimer##_SHIFT] == 0 ) ? \
- LLC_TIMER_EXPIRED : LLC_TIMER_RUNNING) : LLC_TIMER_NOTRUNNING)
-
- #define FOR_ALL_LLC_TIMERS(t) for ((t) = LLC_ACK_SHIFT; (t) < LLC_AGE_SHIFT; (t)++)
-
- #define LLC_SETFLAG(l, LLCflag, v) (l)->llcl_##LLCflag##_flag = (v)
- #define LLC_GETFLAG(l, LLCflag) (l)->llcl_##LLCflag##_flag
-
- #define LLC_RESETCOUNTER(l) { \
- (l)->llcl_vs = (l)->llcl_vr = (l)->llcl_retry = 0; \
- llc_resetwindow((l)); \
- }
-
- /*
- * LLC2 macro definitions
- */
-
-
- #define LLC_START_ACK_TIMER(l) LLC_STARTTIMER((l), ACK)
- #define LLC_STOP_ACK_TIMER(l) LLC_STOPTIMER((l), ACK)
- #define LLC_START_REJ_TIMER(l) LLC_STARTTIMER((l), REJ)
- #define LLC_STOP_REJ_TIMER(l) LLC_STOPTIMER((l), REJ)
- #define LLC_START_P_TIMER(l) { \
- LLC_STARTTIMER((l), P); \
- if (LLC_GETFLAG((l), P) == 0) \
- (l)->llcl_retry = 0; \
- LLC_SETFLAG((l), P, 1); \
- }
- #define LLC_STOP_P_TIMER(l) { \
- LLC_STOPTIMER((l), P); \
- LLC_SETFLAG((l), P, 0); \
- }
- #define LLC_STOP_ALL_TIMERS(l) { \
- LLC_STOPTIMER((l), ACK); \
- LLC_STOPTIMER((l), REJ); \
- LLC_STOPTIMER((l), BUSY); \
- LLC_STOPTIMER((l), P); \
- }
-
-
- #define LLC_INC(i) (i) = ((i)+1) % LLC_MAX_SEQUENCE
-
- #define LLC_NR_VALID(l, nr) ((l)->llcl_vs < (l)->llcl_nr_received ? \
- (((nr) >= (l)->llcl_nr_received) || \
- ((nr) <= (l)->llcl_vs) ? 1 : 0) : \
- (((nr) <= (l)->llcl_vs) && \
- ((nr) >= (l)->llcl_nr_received) ? 1 : 0))
-
- #define LLC_UPDATE_P_FLAG(l, cr, pf) { \
- if ((cr) == LLC_RSP && (pf) == 1) { \
- LLC_SETFLAG((l), P, 0); \
- LLC_STOPTIMER((l), P); \
- } \
- }
-
- #define LLC_UPDATE_NR_RECEIVED(l, nr) { \
- while ((l)->llcl_nr_received != (nr)) { \
- struct mbuf *_m; \
- register short seq; \
- if ((_m = (l)->llcl_output_buffers[seq = llc_seq2slot((l), (l)->llcl_nr_received)])) \
- m_freem(_m); \
- (l)->llcl_output_buffers[seq] = NULL; \
- LLC_INC((l)->llcl_nr_received); \
- (l)->llcl_slotsfree++; \
- } \
- (l)->llcl_retry = 0; \
- if ((l)->llcl_slotsfree < (l)->llcl_window) { \
- LLC_START_ACK_TIMER(l); \
- } else LLC_STOP_ACK_TIMER(l); \
- LLC_STARTTIMER((l), DACTION); \
- }
-
- #define LLC_SET_REMOTE_BUSY(l,a) { \
- if (LLC_GETFLAG((l), REMOTE_BUSY) == 0) { \
- LLC_SETFLAG((l), REMOTE_BUSY, 1); \
- LLC_STARTTIMER((l), BUSY); \
- (a) = LLC_REMOTE_BUSY; \
- } else { \
- (a) = 0; \
- } \
- }
- #define LLC_CLEAR_REMOTE_BUSY(l,a) { \
- if (LLC_GETFLAG((l), REMOTE_BUSY) == 1) { \
- LLC_SETFLAG((l), REMOTE_BUSY, 1); \
- LLC_STOPTIMER((l), BUSY); \
- if (LLC_STATEEQ((l), NORMAL) || \
- LLC_STATEEQ((l), REJECT) || \
- LLC_STATEEQ((l), BUSY)) \
- llc_resend((l), LLC_CMD, 0); \
- (a) = LLC_REMOTE_NOT_BUSY; \
- } else { \
- (a) = 0; \
- } \
- }
-
- #define LLC_DACKCMD 0x1
- #define LLC_DACKCMDPOLL 0x2
- #define LLC_DACKRSP 0x3
- #define LLC_DACKRSPFINAL 0x4
-
- #define LLC_SENDACKNOWLEDGE(l, cmd, pf) { \
- if ((cmd) == LLC_CMD) { \
- LLC_SETFLAG((l), DACTION, ((pf) == 0 ? LLC_DACKCMD : LLC_DACKCMDPOLL)); \
- } else { \
- LLC_SETFLAG((l), DACTION, ((pf) == 0 ? LLC_DACKRSP : LLC_DACKRSPFINAL)); \
- } \
- }
-
- #define LLC_FRMR_W (1<<0)
- #define LLC_FRMR_X (1<<1)
- #define LLC_FRMR_Y (1<<2)
- #define LLC_FRMR_Z (1<<3)
- #define LLC_FRMR_V (1<<4)
-
- #define LLC_SETFRMR(l, f, cr, c) { \
- if ((f)->llc_control & 0x3) { \
- (l)->llcl_frmr_pdu0 = (f)->llc_control; \
- (l)->llcl_frmr_pdu1 = 0; \
- } else { \
- (l)->llcl_frmr_pdu0 = (f)->llc_control; \
- (l)->llcl_frmr_pdu1 = (f)->llc_control_ext; \
- } \
- LLCCSBITS((l)->llcl_frmr_control, f_vs, (l)->llcl_vs); \
- LLCCSBITS((l)->llcl_frmr_control_ext, f_cr, (cr)); \
- LLCSBITS((l)->llcl_frmr_control_ext, f_vr, (l)->llcl_vr); \
- LLCCSBITS((l)->llcl_frmr_cause, f_wxyzv, (c)); \
- }
-
- /*
- * LLC tracing levels:
- * LLCTR_INTERESTING interesting event, we might care to know about
- * it, but then again, we might not ...
- * LLCTR_SHOULDKNOW we probably should know about this event
- * LLCTR_URGENT something has gone utterly wrong ...
- */
- #define LLCTR_INTERESTING 1
- #define LLCTR_SHOULDKNOW 2
- #define LLCTR_URGENT 3
-
- #ifdef LLCDEBUG
- #define LLC_TRACE(lp, l, msg) llc_trace((lp), (l), (msg))
- #else /* LLCDEBUG */
- #define LLC_TRACE(lp, l, msg) /* NOOP */
- #endif /* LLCDEBUG */
-
- #define LLC_N2_VALUE 15 /* up to 15 retries */
- #define LLC_ACK_TIMER 10 /* 5 secs */
- #define LLC_P_TIMER 4 /* 2 secs */
- #define LLC_BUSY_TIMER 12 /* 6 secs */
- #define LLC_REJ_TIMER 12 /* 6 secs */
- #define LLC_AGE_TIMER 40 /* 20 secs */
- #define LLC_DACTION_TIMER 2 /* 1 secs */
-
- #if defined (KERNEL) && defined(LLC)
- extern int llc_n2;
- extern int llc_ACK_timer;
- extern int llc_P_timer;
- extern int llc_REJ_timer;
- extern int llc_BUSY_timer;
- extern int llc_AGE_timer;
- extern int llc_DACTION_timer;
-
- extern int af_link_rts_init_done;
-
- #define USES_AF_LINK_RTS { \
- if (!af_link_rts_init_done) { \
- rn_inithead((void **)&rt_tables[AF_LINK], 32); \
- af_link_rts_init_done++; \
- } \
- }
-
- struct ifqueue llcintrq;
-
- extern struct llccb_q llccb_q;
- extern char *frame_names[];
-
- /*
- * Function prototypes
- */
- int sdl_cmp __P((struct sockaddr_dl *, struct sockaddr_dl *));
- int sdl_copy __P((struct sockaddr_dl *, struct sockaddr_dl *));
- int sdl_swapaddr __P((struct sockaddr_dl *, struct sockaddr_dl *));
- int sdl_checkaddrif __P((struct ifnet *, struct sockaddr_dl *));
- int sdl_setaddrif __P((struct ifnet *, u_char *, u_char, u_char,
- struct sockaddr_dl *));
- int sdl_sethdrif __P((struct ifnet *, u_char *, u_char, u_char *, u_char, u_char,
- struct sdl_hdr *));
- struct npaidbentry *llc_setsapinfo __P((struct ifnet *, u_char, u_char,
- struct dllconfig *));
- struct npaidbentry *llc_getsapinfo __P((u_char, struct ifnet *));
- struct rtentry *npaidb_enrich __P((short, caddr_t, struct sockaddr_dl *));
- int npaidb_destroy __P((struct rtentry *));
- short llc_seq2slot __P((struct llc_linkcb *, short));
- int llc_state_ADM __P((struct llc_linkcb *, struct llc *, int, int, int));
- int llc_state_CONN __P((struct llc_linkcb *, struct llc *, int, int, int));
- int llc_state_RESET_WAIT __P((struct llc_linkcb *, struct llc *,
- int, int, int));
- int llc_state_RESET_CHECK __P((struct llc_linkcb *, struct llc *,
- int, int, int));
- int llc_state_SETUP __P((struct llc_linkcb *, struct llc *, int, int, int));
- int llc_state_RESET __P((struct llc_linkcb *, struct llc *, int, int, int));
- int llc_state_D_CONN __P((struct llc_linkcb *, struct llc *, int, int, int));
- int llc_state_ERROR __P((struct llc_linkcb *, struct llc *, int, int, int));
- int llc_state_NBRAcore __P((struct llc_linkcb *, struct llc *, int, int, int));
- int llc_state_NORMAL __P((struct llc_linkcb *, struct llc *, int, int, int));
- int llc_state_BUSY __P((struct llc_linkcb *, struct llc *, int, int, int));
- int llc_state_REJECT __P((struct llc_linkcb *, struct llc *, int, int, int));
- int llc_state_AWAIT __P((struct llc_linkcb *, struct llc *, int, int, int));
- int llc_state_AWAIT_BUSY __P((struct llc_linkcb *, struct llc *, int, int, int));
- int llc_state_AWAIT_REJECT __P((struct llc_linkcb *, struct llc *, int, int, int));
- int llc_statehandler __P((struct llc_linkcb *, struct llc *, int, int, int));
- int llc_init __P((void));
- struct llc_linkcb *llc_newlink __P((struct sockaddr_dl *, struct ifnet *,
- struct rtentry *, caddr_t, struct rtentry *));
- int llc_dellink __P((struct llc_linkcb *));
- int llc_anytimersup __P((struct llc_linkcb *));
- char * llc_getstatename __P((struct llc_linkcb *));
- void llc_link_dump __P((struct llc_linkcb *, const char *));
- void llc_trace __P((struct llc_linkcb *, int, const char *));
- void llc_resetwindow __P((struct llc_linkcb *));
- int llc_decode __P((struct llc *, struct llc_linkcb *));
- void llc_timer __P((void));
- void llcintr __P((void));
- int llc_input __P((struct llc_linkcb *, struct mbuf *, u_char));
- caddr_t llc_ctlinput __P((int, struct sockaddr *, caddr_t));
- int llc_output __P((struct llc_linkcb *, struct mbuf *));
- void llc_start __P((struct llc_linkcb *));
- int llc_send __P((struct llc_linkcb *, int, int, int));
- int llc_resend __P((struct llc_linkcb *, int, int));
- int llc_rawsend __P((struct llc_linkcb *, struct mbuf *, struct llc *, int, int,
- int, int));
- int cons_rtrequest __P((int, struct rtentry *, struct sockaddr *));
- int x25_llcglue __P((int, struct sockaddr *));
-
- #endif
-
-
-