163 lines
4.8 KiB
C
163 lines
4.8 KiB
C
/*
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* Copyright (c) 2001 Cubical Solutions Ltd. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* capi/capi_llif.c The i4b CAPI link layer interface.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/kernel.h>
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#include <sys/systm.h>
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#include <sys/mbuf.h>
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#include <sys/socket.h>
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#include <net/if.h>
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#include <machine/i4b_debug.h>
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#include <machine/i4b_ioctl.h>
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#include <machine/i4b_cause.h>
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#include <i4b/include/i4b_l3l4.h>
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#include <i4b/include/i4b_mbuf.h>
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#include <i4b/include/i4b_global.h>
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#include <i4b/layer4/i4b_l4.h>
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#include <i4b/capi/capi.h>
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#include <i4b/capi/capi_msgs.h>
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/*
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// capi_ll_control
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// CAPI link layer control routine. Called by a link layer
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// driver when its state changes.
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*/
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int
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capi_ll_control(capi_softc_t *sc, int op, int arg)
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{
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switch (op) {
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case CAPI_CTRL_READY:
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if (arg) {
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sc->sc_state = C_READY;
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/*
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* Register our CAPI ApplId and send CAPI_LISTEN_REQ
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* with CIP Mask value 1 (match all).
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*/
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sc->reg_appl(sc, I4BCAPI_APPLID, sc->sc_nbch);
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capi_listen_req(sc, 0x10007);
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} else {
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sc->sc_state = C_DOWN;
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/* XXX go through cds and notify L4 of pdeact? XXX */
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}
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break;
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case CAPI_CTRL_PROFILE:
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bcopy((char*) arg, &sc->sc_profile, sizeof(sc->sc_profile));
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break;
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case CAPI_CTRL_NEW_NCCI:
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case CAPI_CTRL_FREE_NCCI:
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/* We ignore the controller's NCCI notifications. */
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break;
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default:
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printf("capi%d: unknown control %d\n", sc->sc_unit, op);
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}
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return 0;
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}
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/*
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// i4b_capi_handlers
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// Array of message-handler pairs used to dispatch CAPI
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// messages sent to I4BCAPI_APPLID.
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*/
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static struct capi_cmdtab {
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u_int16_t cmd;
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void (*handler)(capi_softc_t *, struct mbuf *);
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} i4b_capi_handlers[] = {
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{ CAPI_LISTEN_CONF, capi_listen_conf },
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{ CAPI_INFO_IND, capi_info_ind },
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{ CAPI_ALERT_CONF, capi_alert_conf },
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{ CAPI_CONNECT_CONF, capi_connect_conf },
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{ CAPI_CONNECT_IND, capi_connect_ind },
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{ CAPI_CONNECT_ACTIVE_IND, capi_connect_active_ind },
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{ CAPI_CONNECT_B3_CONF, capi_connect_b3_conf },
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{ CAPI_CONNECT_B3_IND, capi_connect_b3_ind },
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{ CAPI_CONNECT_B3_ACTIVE_IND, capi_connect_b3_active_ind },
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{ CAPI_DATA_B3_CONF, capi_data_b3_conf },
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{ CAPI_DATA_B3_IND, capi_data_b3_ind },
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{ CAPI_DISCONNECT_B3_IND, capi_disconnect_b3_ind },
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{ CAPI_DISCONNECT_CONF, capi_disconnect_conf },
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{ CAPI_DISCONNECT_IND, capi_disconnect_ind },
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{ 0, 0 }
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};
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/*
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// capi_ll_receive
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// CAPI link layer receive upcall. Called by a link layer
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// driver to dispatch incoming CAPI messages.
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*/
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int
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capi_ll_receive(capi_softc_t *sc, struct mbuf *m)
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{
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u_int8_t *p = mtod(m, u_int8_t*);
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u_int16_t len, applid, msgid, cmd;
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capimsg_getu16(p + 0, &len);
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capimsg_getu16(p + 2, &applid);
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capimsg_getu16(p + 4, &cmd);
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capimsg_getu16(p + 6, &msgid);
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#if 0
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printf("capi%d: ll_receive hdr %04x %04x %04x %04x\n", sc->sc_unit,
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len, applid, cmd, msgid);
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#endif
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if (applid == I4BCAPI_APPLID) {
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struct capi_cmdtab *e;
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for (e = i4b_capi_handlers; e->cmd && e->cmd != cmd; e++);
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if (e->cmd) (*e->handler)(sc, m);
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else printf("capi%d: unknown message %04x\n", sc->sc_unit, cmd);
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} else {
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/* XXX we could handle arbitrary ApplIds here XXX */
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printf("capi%d: message %04x for unknown applid %d\n", sc->sc_unit,
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cmd, applid);
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}
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if (m->m_next) {
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i4b_Bfreembuf(m->m_next);
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m->m_next = NULL;
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}
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i4b_Dfreembuf(m);
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return(0);
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}
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