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Add support for source-specific IPv6 routes to BIRD core

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This patch adds support for source-specific IPv6 routes to BIRD core.
This is based on Dean Luga's original patch, with the review comments
addressed. SADR support is added to network address parsing in confbase.Y
and to the kernel protocol on Linux.

Currently there is no way to mix source-specific and non-source-specific
routes (i.e., SADR tables cannot be connected to non-SADR tables).

Thanks to Toke Hoiland-Jorgensen for the original patch.
Minor changes by Ondrej Santiago Zajicek.
This commit is contained in:
Ondrej Zajicek (work)
2018-02-13 16:27:57 +01:00
parent a82f692e58
commit be17805c0b
9 changed files with 233 additions and 30 deletions
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25
sysdep/unix/krt.c
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@@ -1108,10 +1108,11 @@ krt_start(struct proto *P)
switch (p->p.net_type)
{
case NET_IP4: p->af = AF_INET; break;
case NET_IP6: p->af = AF_INET6; break;
case NET_IP4: p->af = AF_INET; break;
case NET_IP6: p->af = AF_INET6; break;
case NET_IP6_SADR: p->af = AF_INET6; break;
#ifdef AF_MPLS
case NET_MPLS: p->af = AF_MPLS; break;
case NET_MPLS: p->af = AF_MPLS; break;
#endif
default: log(L_ERR "KRT: Tried to start with strange net type: %d", p->p.net_type); return PS_START; break;
}
@@ -1219,16 +1220,24 @@ krt_get_attr(eattr *a, byte *buf, int buflen)
}
#ifdef CONFIG_IP6_SADR_KERNEL
#define MAYBE_IP6_SADR NB_IP6_SADR
#else
#define MAYBE_IP6_SADR 0
#endif
#ifdef HAVE_MPLS_KERNEL
#define MAYBE_MPLS NB_MPLS
#else
#define MAYBE_MPLS 0
#endif
struct protocol proto_unix_kernel = {
.name = "Kernel",
.template = "kernel%d",
.attr_class = EAP_KRT,
.preference = DEF_PREF_INHERITED,
#ifdef HAVE_MPLS_KERNEL
.channel_mask = NB_IP | NB_MPLS,
#else
.channel_mask = NB_IP,
#endif
.channel_mask = NB_IP | MAYBE_IP6_SADR | MAYBE_MPLS,
.proto_size = sizeof(struct krt_proto),
.config_size = sizeof(struct krt_config),
.preconfig = krt_preconfig,