diff options
Diffstat (limited to 'sys/netinet/if_atm.c')
| -rw-r--r-- | sys/netinet/if_atm.c | 278 |
1 files changed, 0 insertions, 278 deletions
diff --git a/sys/netinet/if_atm.c b/sys/netinet/if_atm.c deleted file mode 100644 index ac3fbf89363..00000000000 --- a/sys/netinet/if_atm.c +++ /dev/null @@ -1,278 +0,0 @@ -/* $OpenBSD: if_atm.c,v 1.18 2013/03/28 16:45:16 tedu Exp $ */ - -/* - * - * Copyright (c) 1996 Charles D. Cranor and Washington University. - * 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 Charles D. Cranor and - * Washington University. - * 4. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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. - */ - -/* - * IP <=> ATM address resolution. - */ - -#if defined(INET) || defined(INET6) - -#include <sys/param.h> -#include <sys/systm.h> -#include <sys/malloc.h> -#include <sys/mbuf.h> -#include <sys/socket.h> -#include <sys/time.h> -#include <sys/kernel.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 <net/if_atm.h> - -#include <netinet/in.h> -#include <netinet/in_systm.h> -#include <netinet/in_var.h> -#include <netinet/ip.h> -#include <netinet/if_atm.h> - -#ifdef NATM -#include <netnatm/natm.h> -#endif - - -#define SDL(s) ((struct sockaddr_dl *)s) - -/* - * atm_rtrequest: handle ATM rt request (in support of generic code) - * inputs: "req" = request code - * "rt" = route entry - * "sa" = sockaddr - */ - -void -atm_rtrequest(int req, struct rtentry *rt, struct rt_addrinfo *info) -{ - struct sockaddr *gate = rt->rt_gateway; - struct atm_pseudoioctl api; - struct rt_addrinfo rtinfo; -#ifdef NATM - struct sockaddr_in *sin; - struct natmpcb *npcb = NULL; - struct atm_pseudohdr *aph; -#endif - static struct sockaddr_dl null_sdl = {sizeof(null_sdl), AF_LINK}; - - if (rt->rt_flags & RTF_GATEWAY) /* link level requests only */ - return; - - switch (req) { - - case RTM_RESOLVE: /* resolve: only happens when cloning */ - printf("atm_rtrequest: RTM_RESOLVE request detected?\n"); - break; - - case RTM_ADD: - - /* - * route added by a command (e.g. ifconfig, route, arp...). - * - * first check to see if this is not a host route, in which - * case we are being called via "ifconfig" to set the address. - */ - - if ((rt->rt_flags & RTF_HOST) == 0) { - rt_setgate(rt,rt_key(rt),(struct sockaddr *)&null_sdl, 0); - gate = rt->rt_gateway; - SDL(gate)->sdl_type = rt->rt_ifp->if_type; - SDL(gate)->sdl_index = rt->rt_ifp->if_index; - break; - } - - if ((rt->rt_flags & RTF_CLONING) != 0) { - printf("atm_rtrequest: cloning route detected?\n"); - break; - } - if (gate->sa_family != AF_LINK || - gate->sa_len < sizeof(null_sdl)) { - log(LOG_DEBUG, "atm_rtrequest: bad gateway value\n"); - break; - } - -#ifdef DIAGNOSTIC - if (rt->rt_ifp->if_ioctl == NULL) panic("atm null ioctl"); -#endif - -#ifdef NATM - /* - * let native ATM know we are using this VCI/VPI - * (i.e. reserve it) - */ - sin = (struct sockaddr_in *) rt_key(rt); - if (sin->sin_family != AF_INET) - goto failed; - aph = (struct atm_pseudohdr *) LLADDR(SDL(gate)); - npcb = npcb_add(NULL, rt->rt_ifp, ATM_PH_VCI(aph), - ATM_PH_VPI(aph)); - if (npcb == NULL) - goto failed; - npcb->npcb_flags |= NPCB_IP; - npcb->ipaddr.s_addr = sin->sin_addr.s_addr; - /* XXX: move npcb to llinfo when ATM ARP is ready */ - rt->rt_llinfo = (caddr_t) npcb; - rt->rt_flags |= RTF_LLINFO; -#endif - /* - * let the lower level know this circuit is active - */ - bcopy(LLADDR(SDL(gate)), &api.aph, sizeof(api.aph)); - api.rxhand = NULL; - if (rt->rt_ifp->if_ioctl(rt->rt_ifp, SIOCATMENA, - (caddr_t)&api) != 0) { - printf("atm: couldn't add VC\n"); - goto failed; - } - - SDL(gate)->sdl_type = rt->rt_ifp->if_type; - SDL(gate)->sdl_index = rt->rt_ifp->if_index; - - break; - -failed: -#ifdef NATM - if (npcb) { - npcb_free(npcb, NPCB_DESTROY); - rt->rt_llinfo = NULL; - rt->rt_flags &= ~RTF_LLINFO; - } -#endif - bzero(&rtinfo, sizeof(rtinfo)); - rtinfo.rti_flags = rt->rt_flags; - rtinfo.rti_info[RTAX_DST] = rt_key(rt); - rtinfo.rti_info[RTAX_NETMASK] = rt_mask(rt); - - rtrequest1(RTM_DELETE, &rtinfo, rt->rt_priority, NULL, 0); - break; - - case RTM_DELETE: - -#ifdef NATM - /* - * tell native ATM we are done with this VC - */ - - if (rt->rt_flags & RTF_LLINFO) { - npcb_free((struct natmpcb *)rt->rt_llinfo, - NPCB_DESTROY); - rt->rt_llinfo = NULL; - rt->rt_flags &= ~RTF_LLINFO; - } -#endif - /* - * tell the lower layer to disable this circuit - */ - - bcopy(LLADDR(SDL(gate)), &api.aph, sizeof(api.aph)); - api.rxhand = NULL; - (void)rt->rt_ifp->if_ioctl(rt->rt_ifp, SIOCATMDIS, - (caddr_t)&api); - - break; - } -} - -/* - * atmresolve: - * inputs: - * [1] "rt" = the link level route to use (or null if need to look one up) - * [2] "m" = mbuf containing the data to be sent - * [3] "dst" = sockaddr_in (IP) address of dest. - * output: - * [4] "desten" = ATM pseudo header which we will fill in VPI/VCI info - * return: - * 0 == resolve FAILED; note that "m" gets m_freem'd in this case - * 1 == resolve OK; desten contains result - * - * XXX: will need more work if we wish to support ATMARP in the kernel, - * but this is enough for PVCs entered via the "route" command. - */ - -int -atmresolve(struct rtentry *rt, struct mbuf *m, struct sockaddr *dst, - struct atm_pseudohdr *desten) -{ - struct sockaddr_dl *sdl; - - if (m->m_flags & (M_BCAST|M_MCAST)) { - log(LOG_INFO, - "atmresolve: BCAST/MCAST packet detected/dumped\n"); - goto bad; - } - - if (rt == NULL) { - rt = rtalloc1(dst, 0, m->m_pkthdr.rdomain); - if (rt == NULL) goto bad; /* failed */ - rt->rt_refcnt--; /* don't keep LL references */ - if ((rt->rt_flags & RTF_GATEWAY) != 0 || - (rt->rt_flags & RTF_LLINFO) == 0 || - /* XXX: are we using LLINFO? */ - rt->rt_gateway->sa_family != AF_LINK) { - goto bad; - } - } - - /* - * note that rt_gateway is a sockaddr_dl which contains the - * atm_pseudohdr data structure for this route. we currently - * don't need any rt_llinfo info (but will if we want to support - * ATM ARP [c.f. if_ether.c]). - */ - - sdl = SDL(rt->rt_gateway); - - /* - * Check the address family and length is valid, the address - * is resolved; otherwise, try to resolve. - */ - - - if (sdl->sdl_family == AF_LINK && sdl->sdl_alen == sizeof(*desten)) { - bcopy(LLADDR(sdl), desten, sdl->sdl_alen); - return (1); /* ok, go for it! */ - } - - /* - * we got an entry, but it doesn't have valid link address - * info in it (it is prob. the interface route, which has - * sdl_alen == 0). dump packet. (fall through to "bad"). - */ - -bad: - m_freem(m); - return (0); -} -#endif /* INET */ |