diff options
Diffstat (limited to 'sys/netiso/iso_snpac.c')
| -rw-r--r-- | sys/netiso/iso_snpac.c | 739 |
1 files changed, 0 insertions, 739 deletions
diff --git a/sys/netiso/iso_snpac.c b/sys/netiso/iso_snpac.c deleted file mode 100644 index 5218682f6f4ed..0000000000000 --- a/sys/netiso/iso_snpac.c +++ /dev/null @@ -1,739 +0,0 @@ -/*- - * Copyright (c) 1991, 1993 - * The Regents of the University of California. 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. - * 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. - * - * @(#)iso_snpac.c 8.1 (Berkeley) 6/10/93 - * $Id: iso_snpac.c,v 1.4 1995/05/30 08:10:58 rgrimes Exp $ - */ - -/*********************************************************** - Copyright IBM Corporation 1987 - - All Rights Reserved - -Permission to use, copy, modify, and distribute this software and its -documentation for any purpose and without fee is hereby granted, -provided that the above copyright notice appear in all copies and that -both that copyright notice and this permission notice appear in -supporting documentation, and that the name of IBM not be -used in advertising or publicity pertaining to distribution of the -software without specific, written prior permission. - -IBM DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING -ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL -IBM BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR -ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, -ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS -SOFTWARE. - -******************************************************************/ - -/* - * ARGO Project, Computer Sciences Dept., University of Wisconsin - Madison - */ -/* $Header: /home/ncvs/src/sys/netiso/iso_snpac.c,v 1.4 1995/05/30 08:10:58 rgrimes Exp $ */ -/* $Source: /home/ncvs/src/sys/netiso/iso_snpac.c,v $ */ - -#ifdef ISO - -#include <sys/param.h> -#include <sys/systm.h> -#include <sys/mbuf.h> -#include <sys/domain.h> -#include <sys/protosw.h> -#include <sys/socket.h> -#include <sys/socketvar.h> -#include <sys/errno.h> -#include <sys/ioctl.h> -#include <sys/syslog.h> - -#include <net/if.h> -#include <net/if_dl.h> -#include <net/route.h> - -#include <netiso/iso.h> -#include <netiso/iso_var.h> -#include <netiso/iso_snpac.h> -#include <netiso/clnp.h> -#include <netiso/clnp_stat.h> -#include <netiso/esis.h> -#include <netiso/argo_debug.h> - -int iso_systype = SNPA_ES; /* default to be an ES */ -extern short esis_holding_time, esis_config_time, esis_esconfig_time; -extern struct timeval time; -extern void esis_config(); -extern int hz; -static void snpac_fixdstandmask(); - -struct sockaddr_iso blank_siso = {sizeof(blank_siso), AF_ISO}; -extern u_long iso_hashchar(); -static struct sockaddr_iso - dst = {sizeof(dst), AF_ISO}, - gte = {sizeof(dst), AF_ISO}, - src = {sizeof(dst), AF_ISO}, - msk = {sizeof(dst), AF_ISO}, - zmk = {0}; -#define zsi blank_siso -#define zero_isoa zsi.siso_addr -#define zap_isoaddr(a, b) {Bzero(&a.siso_addr, sizeof(*r)); r = b; \ - Bcopy(r, &a.siso_addr, 1 + (r)->isoa_len);} -#define S(x) ((struct sockaddr *)&(x)) - -static struct sockaddr_dl blank_dl = {sizeof(blank_dl), AF_LINK}; -static struct sockaddr_dl gte_dl; -#define zap_linkaddr(a, b, c, i) \ - (*a = blank_dl, bcopy(b, a->sdl_data, a->sdl_alen = c), a->sdl_index = i) - -/* - * We only keep track of a single IS at a time. - */ -struct rtentry *known_is; - -/* - * Addresses taken from NBS agreements, December 1987. - * - * These addresses assume on-the-wire transmission of least significant - * bit first. This is the method used by 802.3. When these - * addresses are passed to the token ring driver, (802.5), they - * must be bit-swaped because 802.5 transmission order is MSb first. - * - * Furthermore, according to IBM Austin, these addresses are not - * true token ring multicast addresses. More work is necessary - * to get multicast to work right on token ring. - * - * Currently, the token ring driver does not handle multicast, so - * these addresses are converted into the broadcast address in - * lan_output() That means that if these multicast addresses change - * the token ring driver must be altered. - */ -char all_es_snpa[] = { 0x09, 0x00, 0x2b, 0x00, 0x00, 0x04 }; -char all_is_snpa[] = { 0x09, 0x00, 0x2b, 0x00, 0x00, 0x05 }; -char all_l1is_snpa[] = {0x01, 0x80, 0xc2, 0x00, 0x00, 0x14}; -char all_l2is_snpa[] = {0x01, 0x80, 0xc2, 0x00, 0x00, 0x15}; - -union sockunion { - struct sockaddr_iso siso; - struct sockaddr_dl sdl; - struct sockaddr sa; -}; - -/* - * FUNCTION: llc_rtrequest - * - * PURPOSE: Manage routing table entries specific to LLC for ISO. - * - * NOTES: This does a lot of obscure magic; - */ -llc_rtrequest(req, rt, sa) -int req; -register struct rtentry *rt; -struct sockaddr *sa; -{ - register union sockunion *gate = (union sockunion *)rt->rt_gateway; - register struct llinfo_llc *lc = (struct llinfo_llc *)rt->rt_llinfo, *lc2; - struct rtentry *rt2; - struct ifnet *ifp = rt->rt_ifp; - int addrlen = ifp->if_addrlen; -#define LLC_SIZE 3 /* XXXXXX do this right later */ - - IFDEBUG (D_SNPA) - printf("llc_rtrequest(%d, %x, %x)\n", req, rt, sa); - ENDDEBUG - if (rt->rt_flags & RTF_GATEWAY) - return; - else switch (req) { - case RTM_ADD: - /* - * Case 1: This route may come from a route to iface with mask - * or from a default route. - */ - if (rt->rt_flags & RTF_CLONING) { - iso_setmcasts(ifp, req); - rt_setgate(rt, rt_key(rt), &blank_dl); - return; - } - if (lc != 0) - return; /* happens on a route change */ - /* FALLTHROUGH */ - case RTM_RESOLVE: - /* - * Case 2: This route may come from cloning, or a manual route - * add with a LL address. - */ - if (gate->sdl.sdl_family != AF_LINK) { - log(LOG_DEBUG, "llc_rtrequest: got non-link non-gateway route\n"); - break; - } - R_Malloc(lc, struct llinfo_llc *, sizeof (*lc)); - rt->rt_llinfo = (caddr_t)lc; - if (lc == 0) { - log(LOG_DEBUG, "llc_rtrequest: malloc failed\n"); - break; - } - Bzero(lc, sizeof(*lc)); - lc->lc_rt = rt; - rt->rt_flags |= RTF_LLINFO; - insque(lc, &llinfo_llc); - if (gate->sdl.sdl_alen == sizeof(struct esis_req) + addrlen) { - gate->sdl.sdl_alen -= sizeof(struct esis_req); - bcopy(addrlen + LLADDR(&gate->sdl), - (caddr_t)&lc->lc_er, sizeof(lc->lc_er)); - } else if (gate->sdl.sdl_alen == addrlen) - lc->lc_flags = (SNPA_ES | SNPA_VALID | SNPA_PERM); - break; - case RTM_DELETE: - if (rt->rt_flags & RTF_CLONING) - iso_setmcasts(ifp, req); - if (lc == 0) - return; - remque(lc); - Free(lc); - rt->rt_llinfo = 0; - rt->rt_flags &= ~RTF_LLINFO; - break; - } - if (rt->rt_rmx.rmx_mtu == 0) { - rt->rt_rmx.rmx_mtu = rt->rt_ifp->if_mtu - LLC_SIZE; - } -} -/* - * FUNCTION: iso_setmcasts - * - * PURPOSE: Enable/Disable ESIS/ISIS multicast reception on interfaces. - * - * NOTES: This also does a lot of obscure magic; - */ -iso_setmcasts(ifp, req) - struct ifnet *ifp; - int req; -{ - static char *addrlist[] = - { all_es_snpa, all_is_snpa, all_l1is_snpa, all_l2is_snpa, 0}; - struct ifreq ifr; - register caddr_t *cpp; - int doreset = 0; - - bzero((caddr_t)&ifr, sizeof(ifr)); - for (cpp = (caddr_t *)addrlist; *cpp; cpp++) { - bcopy(*cpp, (caddr_t)ifr.ifr_addr.sa_data, 6); - if (req == RTM_ADD) - if (ether_addmulti(&ifr, (struct arpcom *)ifp) == ENETRESET) - doreset++; - else - if (ether_delmulti(&ifr, (struct arpcom *)ifp) == ENETRESET) - doreset++; - } -#if 0 - if (doreset) { - if (ifp->if_reset) - (*ifp->if_reset)(ifp->if_unit); - else - printf("iso_setmcasts: %s%d needs reseting to receive iso mcasts\n", - ifp->if_name, ifp->if_unit); - } -#endif -} -/* - * FUNCTION: iso_snparesolve - * - * PURPOSE: Resolve an iso address into snpa address - * - * RETURNS: 0 if addr is resolved - * errno if addr is unknown - * - * SIDE EFFECTS: - * - * NOTES: Now that we have folded the snpa cache into the routing - * table, we know there is no snpa address known for this - * destination. If we know of a default IS, then the address - * of the IS is returned. If no IS is known, then return the - * multi-cast address for "all ES" for this interface. - * - * NB: the last case described above constitutes the - * query configuration function 9542, sec 6.5 - * A mechanism is needed to prevent this function from - * being invoked if the system is an IS. - */ -iso_snparesolve(ifp, dest, snpa, snpa_len) -struct ifnet *ifp; /* outgoing interface */ -struct sockaddr_iso *dest; /* destination */ -caddr_t snpa; /* RESULT: snpa to be used */ -int *snpa_len; /* RESULT: length of snpa */ -{ - struct llinfo_llc *sc; /* ptr to snpa table entry */ - caddr_t found_snpa; - int addrlen; - - /* - * This hack allows us to send esis packets that have the destination snpa - * addresss embedded in the destination nsap address - */ - if (dest->siso_data[0] == AFI_SNA) { - /* - * This is a subnetwork address. Return it immediately - */ - IFDEBUG(D_SNPA) - printf("iso_snparesolve: return SN address\n"); - ENDDEBUG - addrlen = dest->siso_nlen - 1; /* subtract size of AFI */ - found_snpa = (caddr_t) dest->siso_data + 1; - /* - * If we are an IS, we can't do much with the packet; - * Check if we know about an IS. - */ - } else if (iso_systype != SNPA_IS && known_is != 0 && - (sc = (struct llinfo_llc *)known_is->rt_llinfo) && - (sc->lc_flags & SNPA_VALID)) { - register struct sockaddr_dl *sdl = - (struct sockaddr_dl *)(known_is->rt_gateway); - found_snpa = LLADDR(sdl); - addrlen = sdl->sdl_alen; - } else if (ifp->if_flags & IFF_BROADCAST) { - /* - * no IS, no match. Return "all es" multicast address for this - * interface, as per Query Configuration Function (9542 sec 6.5) - * - * Note: there is a potential problem here. If the destination - * is on the subnet and it does not respond with a ESH, but - * does send back a TP CC, a connection could be established - * where we always transmit the CLNP packet to "all es" - */ - addrlen = ifp->if_addrlen; - found_snpa = (caddr_t)all_es_snpa; - } else - return (ENETUNREACH); - bcopy(found_snpa, snpa, *snpa_len = addrlen); - return (0); -} - - -/* - * FUNCTION: snpac_free - * - * PURPOSE: free an entry in the iso address map table - * - * RETURNS: nothing - * - * SIDE EFFECTS: - * - * NOTES: If there is a route entry associated with cache - * entry, then delete that as well - */ -snpac_free(lc) -register struct llinfo_llc *lc; /* entry to free */ -{ - register struct rtentry *rt = lc->lc_rt; - register struct iso_addr *r; - - if (known_is == rt) - known_is = 0; - if (rt && (rt->rt_flags & RTF_UP) && - (rt->rt_flags & (RTF_DYNAMIC | RTF_MODIFIED))) { - RTFREE(rt); - rtrequest(RTM_DELETE, rt_key(rt), rt->rt_gateway, rt_mask(rt), - rt->rt_flags, (struct rtentry **)0); - RTFREE(rt); - } -} - -/* - * FUNCTION: snpac_add - * - * PURPOSE: Add an entry to the snpa cache - * - * RETURNS: - * - * SIDE EFFECTS: - * - * NOTES: If entry already exists, then update holding time. - */ -snpac_add(ifp, nsap, snpa, type, ht, nsellength) -struct ifnet *ifp; /* interface info is related to */ -struct iso_addr *nsap; /* nsap to add */ -caddr_t snpa; /* translation */ -char type; /* SNPA_IS or SNPA_ES */ -u_short ht; /* holding time (in seconds) */ -int nsellength; /* nsaps may differ only in trailing bytes */ -{ - register struct llinfo_llc *lc; - register struct rtentry *rt; - struct rtentry *mrt = 0; - register struct iso_addr *r; /* for zap_isoaddr macro */ - int snpalen = min(ifp->if_addrlen, MAX_SNPALEN); - int new_entry = 0, index = ifp->if_index, iftype = ifp->if_type; - - IFDEBUG(D_SNPA) - printf("snpac_add(%x, %x, %x, %x, %x, %x)\n", - ifp, nsap, snpa, type, ht, nsellength); - ENDDEBUG - zap_isoaddr(dst, nsap); - rt = rtalloc1(S(dst), 0, 0UL); - IFDEBUG(D_SNPA) - printf("snpac_add: rtalloc1 returns %x\n", rt); - ENDDEBUG - if (rt == 0) { - struct sockaddr *netmask; - int flags; - add: - if (nsellength) { - netmask = S(msk); flags = RTF_UP; - snpac_fixdstandmask(nsellength); - } else { - netmask = 0; flags = RTF_UP | RTF_HOST; - } - new_entry = 1; - zap_linkaddr((>e_dl), snpa, snpalen, index); - gte_dl.sdl_type = iftype; - if (rtrequest(RTM_ADD, S(dst), S(gte_dl), netmask, flags, &mrt) || - mrt == 0) - return (0); - rt = mrt; - rt->rt_refcnt--; - } else { - register struct sockaddr_dl *sdl = (struct sockaddr_dl *)rt->rt_gateway; - rt->rt_refcnt--; - if ((rt->rt_flags & RTF_LLINFO) == 0) - goto add; - if (nsellength && (rt->rt_flags & RTF_HOST)) { - if (rt->rt_refcnt == 0) { - rtrequest(RTM_DELETE, S(dst), (struct sockaddr *)0, - (struct sockaddr *)0, 0, (struct rtentry *)0); - rt = 0; - goto add; - } else { - static struct iso_addr nsap2; register char *cp; - nsap2 = *nsap; - cp = nsap2.isoa_genaddr + nsap->isoa_len - nsellength; - while (cp < (char *)(1 + &nsap2)) - *cp++ = 0; - (void) snpac_add(ifp, &nsap2, snpa, type, ht, nsellength); - } - } - if (sdl->sdl_family != AF_LINK || sdl->sdl_alen == 0) { - int old_sdl_len = sdl->sdl_len; - if (old_sdl_len < sizeof(*sdl)) { - log(LOG_DEBUG, "snpac_add: cant make room for lladdr\n"); - return (0); - } - zap_linkaddr(sdl, snpa, snpalen, index); - sdl->sdl_len = old_sdl_len; - sdl->sdl_type = iftype; - new_entry = 1; - } - } - if ((lc = (struct llinfo_llc *)rt->rt_llinfo) == 0) - panic("snpac_rtrequest"); - rt->rt_rmx.rmx_expire = ht + time.tv_sec; - lc->lc_flags = SNPA_VALID | type; - if ((type & SNPA_IS) && !(iso_systype & SNPA_IS)) - snpac_logdefis(rt); - return (new_entry); -} - -static void -snpac_fixdstandmask(nsellength) -{ - register char *cp = msk.siso_data, *cplim; - - cplim = cp + (dst.siso_nlen -= nsellength); - msk.siso_len = cplim - (char *)&msk; - msk.siso_nlen = 0; - while (cp < cplim) - *cp++ = -1; - while (cp < (char *)msk.siso_pad) - *cp++ = 0; - for (cp = dst.siso_data + dst.siso_nlen; cp < (char *)dst.siso_pad; ) - *cp++ = 0; -} - -/* - * FUNCTION: snpac_ioctl - * - * PURPOSE: Set/Get the system type and esis parameters - * - * RETURNS: 0 on success, or unix error code - * - * SIDE EFFECTS: - * - * NOTES: - */ -snpac_ioctl (so, cmd, data) -struct socket *so; -int cmd; /* ioctl to process */ -caddr_t data; /* data for the cmd */ -{ - register struct systype_req *rq = (struct systype_req *)data; - - IFDEBUG(D_IOCTL) - if (cmd == SIOCSSTYPE) - printf("snpac_ioctl: cmd set, type x%x, ht %d, ct %d\n", - rq->sr_type, rq->sr_holdt, rq->sr_configt); - else - printf("snpac_ioctl: cmd get\n"); - ENDDEBUG - - if (cmd == SIOCSSTYPE) { - if ((so->so_state & SS_PRIV) == 0) - return (EPERM); - if ((rq->sr_type & (SNPA_ES|SNPA_IS)) == (SNPA_ES|SNPA_IS)) - return(EINVAL); - if (rq->sr_type & SNPA_ES) { - iso_systype = SNPA_ES; - } else if (rq->sr_type & SNPA_IS) { - iso_systype = SNPA_IS; - } else { - return(EINVAL); - } - esis_holding_time = rq->sr_holdt; - esis_config_time = rq->sr_configt; - if (esis_esconfig_time != rq->sr_esconfigt) { - untimeout(esis_config, (caddr_t)0); - esis_esconfig_time = rq->sr_esconfigt; - esis_config(); - } - } else if (cmd == SIOCGSTYPE) { - rq->sr_type = iso_systype; - rq->sr_holdt = esis_holding_time; - rq->sr_configt = esis_config_time; - rq->sr_esconfigt = esis_esconfig_time; - } else { - return (EINVAL); - } - return (0); -} - -/* - * FUNCTION: snpac_logdefis - * - * PURPOSE: Mark the IS passed as the default IS - * - * RETURNS: nothing - * - * SIDE EFFECTS: - * - * NOTES: - */ -snpac_logdefis(sc) -register struct rtentry *sc; -{ - register struct iso_addr *r; - register struct sockaddr_dl *sdl = (struct sockaddr_dl *)sc->rt_gateway; - register struct rtentry *rt; - - if (known_is == sc || !(sc->rt_flags & RTF_HOST)) - return; - if (known_is) { - RTFREE(known_is); - } - known_is = sc; - sc->rt_refcnt++; - rt = rtalloc1((struct sockaddr *)&zsi, 0, 0UL); - if (rt == 0) - rtrequest(RTM_ADD, S(zsi), rt_key(sc), S(zmk), - RTF_DYNAMIC|RTF_GATEWAY, 0); - else { - if ((rt->rt_flags & RTF_DYNAMIC) && - (rt->rt_flags & RTF_GATEWAY) && rt_mask(rt)->sa_len == 0) - rt_setgate(rt, rt_key(rt), rt_key(sc)); - } -} - -/* - * FUNCTION: snpac_age - * - * PURPOSE: Time out snpac entries - * - * RETURNS: - * - * SIDE EFFECTS: - * - * NOTES: When encountering an entry for the first time, snpac_age - * may delete up to SNPAC_AGE too many seconds. Ie. - * if the entry is added a moment before snpac_age is - * called, the entry will immediately have SNPAC_AGE - * seconds taken off the holding time, even though - * it has only been held a brief moment. - * - * The proper way to do this is set an expiry timeval - * equal to current time + holding time. Then snpac_age - * would time out entries where expiry date is older - * than the current time. - */ -void -snpac_age() -{ - register struct llinfo_llc *lc, *nlc; - register struct rtentry *rt; - - timeout(snpac_age, (caddr_t)0, SNPAC_AGE * hz); - - for (lc = llinfo_llc.lc_next; lc != & llinfo_llc; lc = nlc) { - nlc = lc->lc_next; - if (lc->lc_flags & SNPA_VALID) { - rt = lc->lc_rt; - if (rt->rt_rmx.rmx_expire && rt->rt_rmx.rmx_expire < time.tv_sec) - snpac_free(lc); - } - } -} - -/* - * FUNCTION: snpac_ownmulti - * - * PURPOSE: Determine if the snpa address is a multicast address - * of the same type as the system. - * - * RETURNS: true or false - * - * SIDE EFFECTS: - * - * NOTES: Used by interface drivers when not in eavesdrop mode - * as interm kludge until - * real multicast addresses can be configured - */ -snpac_ownmulti(snpa, len) -caddr_t snpa; -u_int len; -{ - return (((iso_systype & SNPA_ES) && - (!bcmp(snpa, (caddr_t)all_es_snpa, len))) || - ((iso_systype & SNPA_IS) && - (!bcmp(snpa, (caddr_t)all_is_snpa, len)))); -} - -/* - * FUNCTION: snpac_flushifp - * - * PURPOSE: Flush entries associated with specific ifp - * - * RETURNS: nothing - * - * SIDE EFFECTS: - * - * NOTES: - */ -snpac_flushifp(ifp) -struct ifnet *ifp; -{ - register struct llinfo_llc *lc; - - for (lc = llinfo_llc.lc_next; lc != & llinfo_llc; lc = lc->lc_next) { - if (lc->lc_rt->rt_ifp == ifp && (lc->lc_flags & SNPA_VALID)) - snpac_free(lc); - } -} - -/* - * FUNCTION: snpac_rtrequest - * - * PURPOSE: Make a routing request - * - * RETURNS: nothing - * - * SIDE EFFECTS: - * - * NOTES: In the future, this should make a request of a user - * level routing daemon. - */ -snpac_rtrequest(req, host, gateway, netmask, flags, ret_nrt) -int req; -struct iso_addr *host; -struct iso_addr *gateway; -struct iso_addr *netmask; -short flags; -struct rtentry **ret_nrt; -{ - register struct iso_addr *r; - - IFDEBUG(D_SNPA) - printf("snpac_rtrequest: "); - if (req == RTM_ADD) - printf("add"); - else if (req == RTM_DELETE) - printf("delete"); - else - printf("unknown command"); - printf(" dst: %s\n", clnp_iso_addrp(host)); - printf("\tgateway: %s\n", clnp_iso_addrp(gateway)); - ENDDEBUG - - - zap_isoaddr(dst, host); - zap_isoaddr(gte, gateway); - if (netmask) { - zap_isoaddr(msk, netmask); - msk.siso_nlen = 0; - msk.siso_len = msk.siso_pad - (u_char *)&msk; - } - - rtrequest(req, S(dst), S(gte), (netmask ? S(msk) : (struct sockaddr *)0), - flags, ret_nrt); -} - -/* - * FUNCTION: snpac_addrt - * - * PURPOSE: Associate a routing entry with an snpac entry - * - * RETURNS: nothing - * - * SIDE EFFECTS: - * - * NOTES: If a cache entry exists for gateway, then - * make a routing entry (host, gateway) and associate - * with gateway. - * - * If a route already exists and is different, first delete - * it. - * - * This could be made more efficient by checking - * the existing route before adding a new one. - */ -snpac_addrt(ifp, host, gateway, netmask) -struct ifnet *ifp; -struct iso_addr *host, *gateway, *netmask; -{ - register struct iso_addr *r; - - zap_isoaddr(dst, host); - zap_isoaddr(gte, gateway); - if (netmask) { - zap_isoaddr(msk, netmask); - msk.siso_nlen = 0; - msk.siso_len = msk.siso_pad - (u_char *)&msk; - rtredirect(S(dst), S(gte), S(msk), RTF_DONE, S(gte), 0); - } else - rtredirect(S(dst), S(gte), (struct sockaddr *)0, - RTF_DONE | RTF_HOST, S(gte), 0); -} -#endif /* ISO */ |