diff options
Diffstat (limited to 'sys/netns/ns_output.c')
| -rw-r--r-- | sys/netns/ns_output.c | 158 |
1 files changed, 0 insertions, 158 deletions
diff --git a/sys/netns/ns_output.c b/sys/netns/ns_output.c deleted file mode 100644 index d647de0..0000000 --- a/sys/netns/ns_output.c +++ /dev/null @@ -1,158 +0,0 @@ -/* - * Copyright (c) 1984, 1985, 1986, 1987, 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. - * - * @(#)ns_output.c 8.1 (Berkeley) 6/10/93 - * $FreeBSD$ - */ - -#include <sys/param.h> -#include <sys/malloc.h> -#include <sys/mbuf.h> -#include <sys/errno.h> -#include <sys/socket.h> -#include <sys/socketvar.h> - -#include <net/if.h> -#include <net/route.h> - -#include <netns/ns.h> -#include <netns/ns_if.h> -#include <netns/idp.h> -#include <netns/idp_var.h> - -int ns_hold_output = 0; -int ns_copy_output = 0; -int ns_output_cnt = 0; -struct mbuf *ns_lastout; - -ns_output(m0, ro, flags) - struct mbuf *m0; - struct route *ro; - int flags; -{ - register struct idp *idp = mtod(m0, struct idp *); - register struct ifnet *ifp = 0; - int error = 0; - struct route idproute; - struct sockaddr_ns *dst; - extern int idpcksum; - - if (ns_hold_output) { - if (ns_lastout) { - (void)m_free(ns_lastout); - } - ns_lastout = m_copy(m0, 0, (int)M_COPYALL); - } - /* - * Route packet. - */ - if (ro == 0) { - ro = &idproute; - bzero((caddr_t)ro, sizeof (*ro)); - } - dst = (struct sockaddr_ns *)&ro->ro_dst; - if (ro->ro_rt == 0) { - dst->sns_family = AF_NS; - dst->sns_len = sizeof (*dst); - dst->sns_addr = idp->idp_dna; - dst->sns_addr.x_port = 0; - /* - * If routing to interface only, - * short circuit routing lookup. - */ - if (flags & NS_ROUTETOIF) { - struct ns_ifaddr *ia = ns_iaonnetof(&idp->idp_dna); - - if (ia == 0) { - error = ENETUNREACH; - goto bad; - } - ifp = ia->ia_ifp; - goto gotif; - } - rtalloc(ro); - } else if ((ro->ro_rt->rt_flags & RTF_UP) == 0) { - /* - * The old route has gone away; try for a new one. - */ - rtfree(ro->ro_rt); - ro->ro_rt = NULL; - rtalloc(ro); - } - if (ro->ro_rt == 0 || (ifp = ro->ro_rt->rt_ifp) == 0) { - error = ENETUNREACH; - goto bad; - } - ro->ro_rt->rt_use++; - if (ro->ro_rt->rt_flags & (RTF_GATEWAY|RTF_HOST)) - dst = (struct sockaddr_ns *)ro->ro_rt->rt_gateway; -gotif: - - /* - * Look for multicast addresses and - * and verify user is allowed to send - * such a packet. - */ - if (dst->sns_addr.x_host.c_host[0]&1) { - if ((ifp->if_flags & IFF_BROADCAST) == 0) { - error = EADDRNOTAVAIL; - goto bad; - } - if ((flags & NS_ALLOWBROADCAST) == 0) { - error = EACCES; - goto bad; - } - } - - if (htons(idp->idp_len) <= ifp->if_mtu) { - ns_output_cnt++; - if (ns_copy_output) { - ns_watch_output(m0, ifp); - } - error = (*ifp->if_output)(ifp, m0, - (struct sockaddr *)dst, ro->ro_rt); - goto done; - } else error = EMSGSIZE; - - -bad: - if (ns_copy_output) { - ns_watch_output(m0, ifp); - } - m_freem(m0); -done: - if (ro == &idproute && (flags & NS_ROUTETOIF) == 0 && ro->ro_rt) { - RTFREE(ro->ro_rt); - ro->ro_rt = 0; - } - return (error); -} |
