diff options
Diffstat (limited to 'sys/i4b/layer4/i4b_l4mgmt.c')
| -rw-r--r-- | sys/i4b/layer4/i4b_l4mgmt.c | 436 |
1 files changed, 0 insertions, 436 deletions
diff --git a/sys/i4b/layer4/i4b_l4mgmt.c b/sys/i4b/layer4/i4b_l4mgmt.c deleted file mode 100644 index 1f3e9e3..0000000 --- a/sys/i4b/layer4/i4b_l4mgmt.c +++ /dev/null @@ -1,436 +0,0 @@ -/*- - * Copyright (c) 1997, 2002 Hellmuth Michaelis. 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. - */ - -/*--------------------------------------------------------------------------- - * - * i4b_l4mgmt.c - layer 4 calldescriptor management utilites - * ----------------------------------------------------------- - * last edit-date: [Sun Aug 11 12:42:01 2002] - * - *---------------------------------------------------------------------------*/ - -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include <sys/param.h> -#include <sys/systm.h> -#include <sys/mbuf.h> - -#include <i4b/include/i4b_debug.h> -#include <i4b/include/i4b_ioctl.h> - -#include <i4b/include/i4b_l3l4.h> -#include <i4b/include/i4b_global.h> - -#include <i4b/layer4/i4b_l4.h> - -call_desc_t call_desc[N_CALL_DESC]; /* call descriptor array */ - -static unsigned int get_cdid(void); - -int nctrl; /* number of attached controllers */ - -void i4b_init_callout(call_desc_t *); - -/*---------------------------------------------------------------------------* - * return a new unique call descriptor id - * -------------------------------------- - * returns a new calldescriptor id which is used to uniquely identyfy - * a single call in the communication between kernel and userland. - * this cdid is then used to associate a calldescriptor with an id. - *---------------------------------------------------------------------------*/ -static unsigned int -get_cdid(void) -{ - static unsigned int cdid_count = 0; - int i; - int x; - - x = SPLI4B(); - - /* get next id */ - - cdid_count++; - -again: - if(cdid_count == CDID_UNUSED) /* zero is invalid */ - cdid_count++; - else if(cdid_count > CDID_MAX) /* wraparound ? */ - cdid_count = 1; - - /* check if id already in use */ - - for(i=0; i < N_CALL_DESC; i++) - { - if(call_desc[i].cdid == cdid_count) - { - cdid_count++; - goto again; - } - } - - splx(x); - - return(cdid_count); -} - -/*---------------------------------------------------------------------------* - * reserve a calldescriptor for later usage - * ---------------------------------------- - * searches the calldescriptor array until an unused - * descriptor is found, gets a new calldescriptor id - * and reserves it by putting the id into the cdid field. - * returns pointer to the calldescriptor. - *---------------------------------------------------------------------------*/ -call_desc_t * -reserve_cd(void) -{ - call_desc_t *cd; - int x; - int i; - - x = SPLI4B(); - - cd = NULL; - - for(i=0; i < N_CALL_DESC; i++) - { - if(call_desc[i].cdid == CDID_UNUSED) - { - bzero(&call_desc[i], sizeof(call_desc_t)); /* clear it */ - call_desc[i].cdid = get_cdid(); /* fill in new cdid */ - cd = &(call_desc[i]); /* get pointer to descriptor */ - NDBGL4(L4_MSG, "found free cd - index=%d cdid=%u", - i, call_desc[i].cdid); - break; - } - } - - splx(x); - - if(cd == NULL) - panic("reserve_cd: no free call descriptor available!"); - - i4b_init_callout(cd); - - return(cd); -} - -/*---------------------------------------------------------------------------* - * free a calldescriptor - * --------------------- - * free an unused calldescriptor by giving address of calldescriptor - * and writing a 0 into the cdid field marking it as unused. - *---------------------------------------------------------------------------*/ -void -freecd_by_cd(call_desc_t *cd) -{ - int i; - int x = SPLI4B(); - - for(i=0; i < N_CALL_DESC; i++) - { - if( (call_desc[i].cdid != CDID_UNUSED) && - (&(call_desc[i]) == cd) ) - { - NDBGL4(L4_MSG, "releasing cd - index=%d cdid=%u cr=%d", - i, call_desc[i].cdid, cd->cr); - call_desc[i].cdid = CDID_UNUSED; - break; - } - } - - if(i == N_CALL_DESC) - panic("freecd_by_cd: ERROR, cd not found, cr = %d\n", cd->cr); - - splx(x); -} - -/*---------------------------------------------------------------------------* - * return pointer to calldescriptor by giving the calldescriptor id - * ---------------------------------------------------------------- - * lookup a calldescriptor in the calldescriptor array by looking - * at the cdid field. return pointer to calldescriptor if found, - * else return NULL if not found. - *---------------------------------------------------------------------------*/ -call_desc_t * -cd_by_cdid(unsigned int cdid) -{ - int i; - - for(i=0; i < N_CALL_DESC; i++) - { - if(call_desc[i].cdid == cdid) - { - NDBGL4(L4_MSG, "found cdid - index=%d cdid=%u cr=%d", - i, call_desc[i].cdid, call_desc[i].cr); - - i4b_init_callout(&call_desc[i]); - - return(&(call_desc[i])); - } - } - return(NULL); -} - -/*---------------------------------------------------------------------------* - * search calldescriptor - * --------------------- - * This routine searches for the calldescriptor for a passive controller - * given by unit number, callreference and callreference flag. - * It returns a pointer to the calldescriptor if found, else a NULL. - *---------------------------------------------------------------------------*/ -call_desc_t * -cd_by_unitcr(int unit, int cr, int crf) -{ - int i; - - for(i=0; i < N_CALL_DESC; i++) - { - if((call_desc[i].cdid != CDID_UNUSED) && - (ctrl_desc[call_desc[i].controller].ctrl_type == CTRL_PASSIVE) && - (ctrl_desc[call_desc[i].controller].unit == unit) && - (call_desc[i].cr == cr) && - (call_desc[i].crflag == crf) ) - { - NDBGL4(L4_MSG, "found cd, index=%d cdid=%u cr=%d", - i, call_desc[i].cdid, call_desc[i].cr); - - i4b_init_callout(&call_desc[i]); - - return(&(call_desc[i])); - } - } - return(NULL); -} - -/*---------------------------------------------------------------------------* - * generate 7 bit "random" number used for outgoing Call Reference - *---------------------------------------------------------------------------*/ -unsigned char -get_rand_cr(int unit) -{ - register int i, j; - static u_char val, retval; - static int called = 42; - - val += ++called; - - for(i=0; i < 50 ; i++, val++) - { - int found = 1; - -#ifdef RANDOMDEV - read_random((char *)&val, sizeof(val)); -#else - val = (u_char)random(); -#endif /* RANDOMDEV */ - - retval = val & 0x7f; - - if(retval == 0 || retval == 0x7f) - continue; - - for(j=0; j < N_CALL_DESC; j++) - { - if( (call_desc[j].cdid != CDID_UNUSED) && - (call_desc[j].cr == retval) ) - { - found = 0; - break; - } - } - - if(found) - return(retval); - } - return(0); /* XXX */ -} - -/*---------------------------------------------------------------------------* - * initialize the callout handles for FreeBSD - *---------------------------------------------------------------------------*/ -void -i4b_init_callout(call_desc_t *cd) -{ - if(cd->callouts_inited == 0) - { - callout_handle_init(&cd->idle_timeout_handle); - callout_handle_init(&cd->T303_callout); - callout_handle_init(&cd->T305_callout); - callout_handle_init(&cd->T308_callout); - callout_handle_init(&cd->T309_callout); - callout_handle_init(&cd->T310_callout); - callout_handle_init(&cd->T313_callout); - callout_handle_init(&cd->T400_callout); - cd->callouts_inited = 1; - } -} - -/*---------------------------------------------------------------------------* - * daemon is attached - *---------------------------------------------------------------------------*/ -void -i4b_l4_daemon_attached(void) -{ - int i; - - int x = SPLI4B(); - - for(i=0; i < nctrl; i++) - { -/*XXX*/ if(*ctrl_desc[i].N_MGMT_COMMAND && - (ctrl_desc[i].ctrl_type == CTRL_PASSIVE || - ctrl_desc[i].ctrl_type == CTRL_CAPIMGR)) - { - NDBGL4(L4_MSG, "CMR_DOPEN sent to unit %d", ctrl_desc[i].unit); - (*ctrl_desc[i].N_MGMT_COMMAND)(ctrl_desc[i].unit, CMR_DOPEN, 0); - } - } - splx(x); -} - -/*---------------------------------------------------------------------------* - * daemon is detached - *---------------------------------------------------------------------------*/ -void -i4b_l4_daemon_detached(void) -{ - int i; - - int x = SPLI4B(); - - for(i=0; i < nctrl; i++) - { -/*XXX*/ if(*ctrl_desc[i].N_MGMT_COMMAND && - (ctrl_desc[i].ctrl_type == CTRL_PASSIVE || - ctrl_desc[i].ctrl_type == CTRL_CAPIMGR)) - { - NDBGL4(L4_MSG, "CMR_DCLOSE sent to unit %d", ctrl_desc[i].unit); - (*ctrl_desc[i].N_MGMT_COMMAND)(ctrl_desc[i].unit, CMR_DCLOSE, 0); - } - } - splx(x); -} - -#ifdef I4B_CD_DEBUG_PRINT - -extern char *print_l3state(call_desc_t *cd); - -void i4b_print_cdp(call_desc_t *cdp); -void i4b_print_cdx(int index); -void i4b_print_cda(void); -void i4b_print_cdaa(void); - -/*---------------------------------------------------------------------------* - * print a call descriptor by cd-pointer - *---------------------------------------------------------------------------*/ -void -i4b_print_cdp(call_desc_t *cdp) -{ - if((cdp > &(call_desc[N_CALL_DESC])) || (cdp < &(call_desc[0]))) - { - printf("i4b_print_cd: cdp out of range!\n"); - return; - } - - printf("i4b_print_cd: printing call descriptor %d at 0x%lx:\n", cdp - (&(call_desc[0])), (unsigned long)cdp); - - printf(" cdid = %d\n", cdp->cdid); - printf(" controller = %d (u=%d, dl=%d, b1=%d, b2=%d)\n", - cdp->controller, - ctrl_desc[cdp->controller].unit, - ctrl_desc[cdp->controller].dl_est, - ctrl_desc[cdp->controller].bch_state[CHAN_B1], - ctrl_desc[cdp->controller].bch_state[CHAN_B2]); - printf(" cr = 0x%02x\n", cdp->cr); - printf(" crflag = %d\n", cdp->crflag); - printf(" channelid = %d\n", cdp->channelid); - printf(" bprot = %d\n", cdp->bprot); - printf(" bcap = %d\n", cdp->bcap); - printf(" driver = %d\n", cdp->driver); - printf(" driver_unit = %d\n", cdp->driver_unit); - printf(" call_state = %d\n", cdp->call_state); - printf(" Q931state = %s\n", print_l3state(cdp)); - printf(" event = %d\n", cdp->event); - printf(" response = %d\n", cdp->response); - printf(" T303 = %d\n", cdp->T303); - printf("T303_first_to = %d\n", cdp->T303_first_to); - printf(" T305 = %d\n", cdp->T305); - printf(" T308 = %d\n", cdp->T308); - printf("T308_first_to = %d\n", cdp->T308_first_to); - printf(" T309 = %d\n", cdp->T309); - printf(" T310 = %d\n", cdp->T310); - printf(" T313 = %d\n", cdp->T313); - printf(" T400 = %d\n", cdp->T400); - printf(" dir = %s\n", cdp->dir == DIR_OUTGOING ? "out" : "in"); -} - -/*---------------------------------------------------------------------------* - * print a call descriptor by index - *---------------------------------------------------------------------------*/ -void -i4b_print_cdx(int index) -{ - if(index >= N_CALL_DESC) - { - printf("i4b_print_cdx: index %d >= N_CALL_DESC %d\n", index, N_CALL_DESC); - return; - } - i4b_print_cdp(&(call_desc[index])); -} - -/*---------------------------------------------------------------------------* - * print all call descriptors - *---------------------------------------------------------------------------*/ -void -i4b_print_cda(void) -{ - int i; - - for(i=0; i < N_CALL_DESC; i++) - { - i4b_print_cdp(&(call_desc[i])); - } -} - -/*---------------------------------------------------------------------------* - * print all active call descriptors - *---------------------------------------------------------------------------*/ -void -i4b_print_cdaa(void) -{ - int i; - - for(i=0; i < N_CALL_DESC; i++) - { - if(call_desc[i].cdid != CDID_UNUSED) - { - i4b_print_cdp(&(call_desc[i])); - } - } -} - -#endif /* I4B_CD_DEBUG_PRINT */ |
