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| author |   norby <norby@openbsd.org> | 2008-04-23 10:55:13 +0000 |
|---|---|---|
| committer | norby <norby@openbsd.org> | 2008-04-23 10:55:13 +0000 |
| commit | d90b97932db4c717a48c7a0c40086a10f5d28a61 (patch) | |
| tree | 7009c8b31c7ad89646a29be9367e32eae69f4114 /sys/net/if_ethersubr.c | |
| parent | sync (diff) | |
| download | wireguard-openbsd-d90b97932db4c717a48c7a0c40086a10f5d28a61.tar.xz wireguard-openbsd-d90b97932db4c717a48c7a0c40086a10f5d28a61.zip | |
Import MPLS (Multi Protocol Label Switching)
MPLS support partly based on the (abandoned?) AYAME project.
Basic LSR (Label Switch Router) functionality is present, but not fully
functional yet.
It is currently possible to insert entries in the LIB (Label Information Base)
with route(8), but setting the operation type is not supported yet.
Imported to allow more people to work on this in the coming weeks.
ok claudio@ laurent@ dlg@
Diffstat (limited to 'sys/net/if_ethersubr.c')
| -rw-r--r-- | sys/net/if_ethersubr.c | 40 |
1 files changed, 39 insertions, 1 deletions
diff --git a/sys/net/if_ethersubr.c b/sys/net/if_ethersubr.c index f84c7d65d9c..c39d5f3a5e7 100644 --- a/sys/net/if_ethersubr.c +++ b/sys/net/if_ethersubr.c @@ -1,4 +1,4 @@ -/* $OpenBSD: if_ethersubr.c,v 1.117 2008/04/18 09:16:14 djm Exp $ */ +/* $OpenBSD: if_ethersubr.c,v 1.118 2008/04/23 10:55:14 norby Exp $ */ /* $NetBSD: if_ethersubr.c,v 1.19 1996/05/07 02:40:30 thorpej Exp $ */ /* @@ -150,6 +150,10 @@ extern u_char at_org_code[ 3 ]; extern u_char aarp_org_code[ 3 ]; #endif /* NETATALK */ +#ifdef MPLS +#include <netmpls/mpls.h> +#endif /* MPLS */ + u_char etherbroadcastaddr[ETHER_ADDR_LEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; #define senderr(e) { error = (e); goto bad;} @@ -325,6 +329,33 @@ ether_output(ifp0, m0, dst, rt0) } } break; #endif /* NETATALK */ +#ifdef MPLS + case AF_MPLS: + if (rt) + dst = (struct sockaddr *)rt->rt_gateway; + else + senderr(EHOSTUNREACH); + + switch (dst->sa_family) { + case AF_LINK: + if (satosdl(dst)->sdl_alen < sizeof(edst)) + senderr(EHOSTUNREACH); + bcopy(LLADDR(satosdl(dst)), edst, sizeof(edst)); + break; + case AF_INET: + if (!arpresolve(ac, rt, m, dst, edst)) + return (0); /* if not yet resolved */ + break; + default: + senderr(EHOSTUNREACH); + } + /* XXX handling for simplex devices in case of M/BCAST ?? */ + if (m->m_flags & (M_BCAST | M_MCAST)) + etype = htons(ETHERTYPE_MPLS_MCAST); + else + etype = htons(ETHERTYPE_MPLS); + break; +#endif /* MPLS */ case pseudo_AF_HDRCMPLT: hdrcmplt = 1; eh = (struct ether_header *)dst->sa_data; @@ -681,6 +712,13 @@ decapsulate: schednetisr(NETISR_PPPOE); break; #endif /* NPPPOE > 0 */ +#ifdef MPLS + case ETHERTYPE_MPLS: + case ETHERTYPE_MPLS_MCAST: + inq = &mplsintrq; + schednetisr(NETISR_MPLS); + break; +#endif default: if (llcfound || etype > ETHERMTU) goto dropanyway; |