/* * Copyright (C) Dirk Husemann, Computer Science Department IV, * University of Erlangen-Nuremberg, Germany, 1990, 1991, 1992 * Copyright (c) 1992 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. * * %sccs.include.redist.c% * * @(#)llc_var.h 7.2 (Berkeley) 02/23/93 */ #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; int (*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 to suck on 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<llcl_timers[LLC_##LLCtimer##_SHIFT] = 0; \ (l)->llcl_timerflags &= ~(1<llcl_timers[LLC_##LLCtimer##_SHIFT] > 0) \ (l)->llcl_timers[LLC_##LLCtimer##_SHIFT]--; #define LLC_TIMERXPIRED(l, LLCtimer) \ (((l)->llcl_timerflags & (1<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