#include <vnet/mfib/mfib_itf.h>
#include <vnet/mfib/mfib_signal.h>
+#include <vnet/fib/fib_path.h>
+#include <vnet/ethernet/mac_address.h>
mfib_itf_t *mfib_itf_pool;
index_t
-mfib_itf_create (u32 sw_if_index,
+mfib_itf_create (fib_node_index_t path_index,
mfib_itf_flags_t mfi_flags)
{
mfib_itf_t *mfib_itf;
pool_get_aligned(mfib_itf_pool, mfib_itf,
CLIB_CACHE_LINE_BYTES);
- mfib_itf->mfi_sw_if_index = sw_if_index;
- mfib_itf->mfi_flags = mfi_flags;
+ mfib_itf->mfi_sw_if_index = fib_path_get_resolving_interface(path_index);
mfib_itf->mfi_si = INDEX_INVALID;
+ /*
+ * add the path index to the per-path hash
+ */
+ mfib_itf->mfi_hash = hash_set(mfib_itf->mfi_hash, path_index, mfi_flags);
+
+ /*
+ * the combined flags from all the paths is from just the one contributor
+ */
+ mfib_itf->mfi_flags = mfi_flags;
+
return (mfib_itf - mfib_itf_pool);
}
+static mfib_itf_flags_t
+mfib_itf_mk_flags (const mfib_itf_t *mfib_itf)
+{
+ mfib_itf_flags_t combined_flags, flags;
+ fib_node_index_t *path_index;
+
+ combined_flags = MFIB_ITF_FLAG_NONE;
+
+ hash_foreach(path_index, flags, mfib_itf->mfi_hash,
+ {
+ combined_flags |= flags;
+ });
+
+ return (combined_flags);
+}
+
+int
+mfib_itf_update (mfib_itf_t *mfib_itf,
+ fib_node_index_t path_index,
+ mfib_itf_flags_t mfi_flags)
+{
+ /*
+ * add or remove the path index to the per-path hash
+ */
+ if (MFIB_ITF_FLAG_NONE == mfi_flags)
+ {
+ hash_unset(mfib_itf->mfi_hash, path_index);
+ }
+ else
+ {
+ mfib_itf->mfi_hash = hash_set(mfib_itf->mfi_hash,
+ path_index,
+ mfi_flags);
+ }
+
+ /*
+ * re-generate the combined flags from all the paths.
+ */
+ mfib_itf->mfi_flags = mfib_itf_mk_flags(mfib_itf);
+
+ /*
+ * The interface can be removed if there are no more flags
+ */
+ return (MFIB_ITF_FLAG_NONE == mfib_itf->mfi_flags);
+}
+
+static void
+mfib_itf_hash_flush (mfib_itf_t *mfi)
+{
+ fib_node_index_t path_index, *path_indexp, *all = NULL;
+ mfib_itf_flags_t flags;
+
+ hash_foreach(path_index, flags, mfi->mfi_hash,
+ {
+ vec_add1(all, path_index);
+ });
+
+ vec_foreach(path_indexp, all)
+ {
+ hash_unset(mfi->mfi_hash, *path_indexp);
+ };
+}
+
+static void
+mfib_itf_prefix4_to_mac (const mfib_prefix_t *pfx,
+ mac_address_t *mac)
+{
+ mac->bytes[0] = 0x01;
+ mac->bytes[1] = 0x0;
+ mac->bytes[2] = 0x5e;
+ mac->bytes[3] = pfx->fp_grp_addr.ip4.as_u8[1] & 0x7f;
+ mac->bytes[4] = pfx->fp_grp_addr.ip4.as_u8[2];
+ mac->bytes[5] = pfx->fp_grp_addr.ip4.as_u8[3];
+}
+
+static void
+mfib_itf_prefix6_to_mac (const mfib_prefix_t *pfx,
+ mac_address_t *mac)
+{
+ mac->bytes[0] = 0x33;
+ mac->bytes[1] = 0x33;
+ mac->bytes[2] = pfx->fp_grp_addr.ip6.as_u8[12];
+ mac->bytes[3] = pfx->fp_grp_addr.ip6.as_u8[13];
+ mac->bytes[4] = pfx->fp_grp_addr.ip6.as_u8[14];
+ mac->bytes[5] = pfx->fp_grp_addr.ip6.as_u8[15];
+}
+
+static void
+mfib_itf_prefix_to_mac (const mfib_prefix_t *pfx,
+ mac_address_t *mac)
+{
+ switch (pfx->fp_proto)
+ {
+ case FIB_PROTOCOL_IP4:
+ mfib_itf_prefix4_to_mac(pfx, mac);
+ break;
+ case FIB_PROTOCOL_IP6:
+ mfib_itf_prefix6_to_mac(pfx, mac);
+ break;
+ case FIB_PROTOCOL_MPLS:
+ break;
+ }
+}
+
+static void
+mfib_itf_mac_add_del (mfib_itf_t *itf,
+ const mfib_prefix_t *pfx,
+ int add)
+{
+ vnet_sw_interface_t *si;
+ vnet_main_t *vnm;
+ mac_address_t mac;
+
+ vnm = vnet_get_main();
+ mfib_itf_prefix_to_mac(pfx, &mac);
+
+ si = vnet_get_sw_interface(vnm, itf->mfi_sw_if_index);
+ vnet_hw_interface_add_del_mac_address (vnet_get_main(),
+ si->hw_if_index,
+ mac.bytes, add);
+}
+
+void
+mfib_itf_mac_add (mfib_itf_t *itf,
+ const mfib_prefix_t *pfx)
+{
+ mfib_itf_mac_add_del(itf, pfx, 1);
+}
+
+void
+mfib_itf_mac_del (mfib_itf_t *itf,
+ const mfib_prefix_t *pfx)
+{
+ mfib_itf_mac_add_del(itf, pfx, 0);
+}
+
void
mfib_itf_delete (mfib_itf_t *mfi)
{
+ mfib_itf_hash_flush(mfi);
mfib_signal_remove_itf(mfi);
pool_put(mfib_itf_pool, mfi);
}
if (~0 != mfib_itf->mfi_sw_if_index)
{
return (format(s, " %U: %U",
- format_vnet_sw_interface_name,
- vnm,
- vnet_get_sw_interface(vnm,
- mfib_itf->mfi_sw_if_index),
+ format_vnet_sw_if_index_name,
+ vnm, mfib_itf->mfi_sw_if_index,
format_mfib_itf_flags, mfib_itf->mfi_flags));
}
else
* show all
*/
vlib_cli_output (vm, "mFIB interfaces::");
- pool_foreach_index(mfii, mfib_itf_pool,
- ({
+ pool_foreach_index (mfii, mfib_itf_pool)
+ {
vlib_cli_output (vm, "%d@%U",
mfii,
format_mfib_itf, mfii);
- }));
+ }
}
return (NULL);
}
/*?
- * This commnad displays an MFIB interface, or all interfaces, indexed by their unique
- * numerical indentifier.
+ * This command displays an MFIB interface, or all interfaces, indexed by their
+ * unique numerical identifier.
?*/
VLIB_CLI_COMMAND (show_mfib_itf, static) = {
.path = "show mfib interface",
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