Allow bridge and carp to play nicely together by returning the packet if its
destined for a carp interface. Obtained from: OpenBSD MFC after: 2 weeks
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parent
1773f77821
commit
b3a1f9373a
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=159446
@ -4,7 +4,7 @@
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.PATH: ${.CURDIR}/../../net
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KMOD= if_bridge
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SRCS= if_bridge.c bridgestp.c opt_inet.h opt_inet6.h
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SRCS= if_bridge.c bridgestp.c opt_inet.h opt_inet6.h opt_carp.h
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.if !defined(KERNBUILDDIR)
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opt_inet.h:
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@ -84,6 +84,7 @@ __FBSDID("$FreeBSD$");
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#include "opt_inet.h"
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#include "opt_inet6.h"
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#include "opt_carp.h"
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#include <sys/param.h>
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#include <sys/mbuf.h>
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@ -120,6 +121,9 @@ __FBSDID("$FreeBSD$");
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#include <netinet/ip6.h>
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#include <netinet6/ip6_var.h>
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#endif
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#ifdef DEV_CARP
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#include <netinet/ip_carp.h>
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#endif
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#include <machine/in_cksum.h>
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#include <netinet/if_ether.h> /* for struct arpcom */
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#include <net/if_bridgevar.h>
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@ -2039,7 +2043,12 @@ bridge_input(struct ifnet *ifp, struct mbuf *m)
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continue;
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/* It is destined for us. */
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if (memcmp(IF_LLADDR(bif->bif_ifp), eh->ether_dhost,
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ETHER_ADDR_LEN) == 0) {
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ETHER_ADDR_LEN) == 0
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#ifdef DEV_CARP
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|| (bif->bif_ifp->if_carp
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&& carp_forus(bif->bif_ifp->if_carp, eh->ether_dhost))
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#endif
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) {
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if (bif->bif_flags & IFBIF_LEARNING)
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(void) bridge_rtupdate(sc,
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eh->ether_shost, ifp, 0, IFBAF_DYNAMIC);
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@ -2050,7 +2059,12 @@ bridge_input(struct ifnet *ifp, struct mbuf *m)
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/* We just received a packet that we sent out. */
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if (memcmp(IF_LLADDR(bif->bif_ifp), eh->ether_shost,
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ETHER_ADDR_LEN) == 0) {
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ETHER_ADDR_LEN) == 0
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#ifdef DEV_CARP
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|| (bif->bif_ifp->if_carp
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&& carp_forus(bif->bif_ifp->if_carp, eh->ether_shost))
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#endif
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) {
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BRIDGE_UNLOCK(sc);
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m_freem(m);
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return (NULL);
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