#include <vnet/mfib/ip4_mfib.h>
#include <vnet/mfib/ip6_mfib.h>
#include <vnet/mfib/mfib_entry.h>
+#include <vnet/mfib/mfib_entry_src.h>
+#include <vnet/mfib/mfib_entry_cover.h>
#include <vnet/mfib/mfib_signal.h>
mfib_table_t *
prefix));
}
+static fib_node_index_t
+mfib_table_get_less_specific_i (const mfib_table_t *mfib_table,
+ const mfib_prefix_t *prefix)
+{
+ switch (prefix->fp_proto)
+ {
+ case FIB_PROTOCOL_IP4:
+ return (ip4_mfib_table_get_less_specific(&mfib_table->v4,
+ &prefix->fp_src_addr.ip4,
+ &prefix->fp_grp_addr.ip4,
+ prefix->fp_len));
+ case FIB_PROTOCOL_IP6:
+ return (ip6_mfib_table_get_less_specific(&mfib_table->v6,
+ &prefix->fp_src_addr.ip6,
+ &prefix->fp_grp_addr.ip6,
+ prefix->fp_len));
+ case FIB_PROTOCOL_MPLS:
+ break;
+ }
+ return (FIB_NODE_INDEX_INVALID);
+}
+
+fib_node_index_t
+mfib_table_get_less_specific (u32 fib_index,
+ const mfib_prefix_t *prefix)
+{
+ return (mfib_table_get_less_specific_i(mfib_table_get(fib_index,
+ prefix->fp_proto),
+ prefix));
+}
+
static void
mfib_table_entry_remove (mfib_table_t *mfib_table,
const mfib_prefix_t *prefix,
- fib_node_index_t fib_entry_index)
+ fib_node_index_t mfib_entry_index)
{
vlib_smp_unsafe_warning();
break;
}
- mfib_entry_unlock(fib_entry_index);
+ mfib_entry_cover_change_notify(mfib_entry_index,
+ FIB_NODE_INDEX_INVALID);
+ mfib_entry_unlock(mfib_entry_index);
+}
+
+static void
+mfib_table_post_insert_actions (mfib_table_t *mfib_table,
+ const mfib_prefix_t *prefix,
+ fib_node_index_t mfib_entry_index)
+{
+ fib_node_index_t mfib_entry_cover_index;
+
+ /*
+ * find the covering entry
+ */
+ mfib_entry_cover_index = mfib_table_get_less_specific_i(mfib_table,
+ prefix);
+ /*
+ * the indicies are the same when the default route is first added
+ */
+ if (mfib_entry_cover_index != mfib_entry_index)
+ {
+ /*
+ * inform the covering entry that a new more specific
+ * has been inserted beneath it.
+ * If the prefix that has been inserted is a host route
+ * then it is not possible that it will be the cover for any
+ * other entry, so we can elide the walk.
+ */
+ if (!mfib_entry_is_host(mfib_entry_index))
+ {
+ mfib_entry_cover_change_notify(mfib_entry_cover_index,
+ mfib_entry_index);
+ }
+ }
}
+
static void
mfib_table_entry_insert (mfib_table_t *mfib_table,
const mfib_prefix_t *prefix,
case FIB_PROTOCOL_MPLS:
break;
}
+
+ mfib_table_post_insert_actions(mfib_table, prefix, mfib_entry_index);
}
fib_node_index_t
mfib_table_entry_update (u32 fib_index,
const mfib_prefix_t *prefix,
mfib_source_t source,
+ fib_rpf_id_t rpf_id,
mfib_entry_flags_t entry_flags)
{
fib_node_index_t mfib_entry_index;
* update to a non-existing entry with non-zero flags
*/
mfib_entry_index = mfib_entry_create(fib_index, source,
- prefix, entry_flags);
+ prefix, rpf_id,
+ entry_flags,
+ INDEX_INVALID);
mfib_table_entry_insert(mfib_table, prefix, mfib_entry_index);
}
{
mfib_entry_lock(mfib_entry_index);
- if (mfib_entry_update(mfib_entry_index, source, entry_flags))
+ if (mfib_entry_update(mfib_entry_index,
+ source,
+ entry_flags,
+ rpf_id,
+ INDEX_INVALID))
{
/*
* this update means we can now remove the entry.
mfib_entry_index = mfib_entry_create(fib_index,
source,
prefix,
- MFIB_ENTRY_FLAG_NONE);
+ MFIB_RPF_ID_NONE,
+ MFIB_ENTRY_FLAG_NONE,
+ INDEX_INVALID);
+
+ mfib_entry_path_update(mfib_entry_index,
+ source,
+ rpath,
+ itf_flags);
mfib_table_entry_insert(mfib_table, prefix, mfib_entry_index);
}
-
- mfib_entry_path_update(mfib_entry_index,
- source,
- rpath,
- itf_flags);
-
+ else
+ {
+ mfib_entry_path_update(mfib_entry_index,
+ source,
+ rpath,
+ itf_flags);
+ }
return (mfib_entry_index);
}
}
}
+fib_node_index_t
+mfib_table_entry_special_add (u32 fib_index,
+ const mfib_prefix_t *prefix,
+ mfib_source_t source,
+ mfib_entry_flags_t entry_flags,
+ index_t repi)
+{
+ fib_node_index_t mfib_entry_index;
+ mfib_table_t *mfib_table;
+
+ mfib_table = mfib_table_get(fib_index, prefix->fp_proto);
+ mfib_entry_index = mfib_table_lookup_exact_match_i(mfib_table, prefix);
+
+ if (INDEX_INVALID != repi)
+ {
+ entry_flags |= MFIB_ENTRY_FLAG_EXCLUSIVE;
+ }
+
+ if (FIB_NODE_INDEX_INVALID == mfib_entry_index)
+ {
+ mfib_entry_index = mfib_entry_create(fib_index,
+ source,
+ prefix,
+ MFIB_RPF_ID_NONE,
+ entry_flags,
+ repi);
+
+ mfib_table_entry_insert(mfib_table, prefix, mfib_entry_index);
+ }
+ else
+ {
+ mfib_entry_special_add(mfib_entry_index, source, entry_flags,
+ MFIB_RPF_ID_NONE, repi);
+ }
+
+ return (mfib_entry_index);
+}
+
static void
mfib_table_entry_delete_i (u32 fib_index,
fib_node_index_t mfib_entry_index,
mfib_table_entry_delete_index (fib_node_index_t mfib_entry_index,
mfib_source_t source)
{
- mfib_prefix_t prefix;
+ const mfib_prefix_t *prefix;
- mfib_entry_get_prefix(mfib_entry_index, &prefix);
+ prefix = mfib_entry_get_prefix(mfib_entry_index);
mfib_table_entry_delete_i(mfib_entry_get_fib_index(mfib_entry_index),
- mfib_entry_index, &prefix, source);
+ mfib_entry_index, prefix, source);
}
u32
return (~0);
}
+u32
+mfib_table_get_table_id (u32 fib_index,
+ fib_protocol_t proto)
+{
+ mfib_table_t *mfib_table;
+
+ mfib_table = mfib_table_get(fib_index, proto);
+
+ return ((NULL != mfib_table ? mfib_table->mft_table_id : ~0));
+}
+
u32
mfib_table_find (fib_protocol_t proto,
u32 table_id)
return (~0);
}
-u32
-mfib_table_find_or_create_and_lock (fib_protocol_t proto,
- u32 table_id)
+static u32
+mfib_table_find_or_create_and_lock_i (fib_protocol_t proto,
+ u32 table_id,
+ mfib_source_t src,
+ const u8 *name)
{
mfib_table_t *mfib_table;
fib_node_index_t fi;
switch (proto)
{
case FIB_PROTOCOL_IP4:
- fi = ip4_mfib_table_find_or_create_and_lock(table_id);
+ fi = ip4_mfib_table_find_or_create_and_lock(table_id, src);
break;
case FIB_PROTOCOL_IP6:
- fi = ip6_mfib_table_find_or_create_and_lock(table_id);
+ fi = ip6_mfib_table_find_or_create_and_lock(table_id, src);
break;
case FIB_PROTOCOL_MPLS:
default:
mfib_table = mfib_table_get(fi, proto);
- mfib_table->mft_desc = format(NULL, "%U-VRF:%d",
- format_fib_protocol, proto,
- table_id);
+ if (NULL == mfib_table->mft_desc)
+ {
+ if (name && name[0])
+ {
+ mfib_table->mft_desc = format(NULL, "%s", name);
+ }
+ else
+ {
+ mfib_table->mft_desc = format(NULL, "%U-VRF:%d",
+ format_fib_protocol, proto,
+ table_id);
+ }
+ }
return (fi);
}
+u32
+mfib_table_find_or_create_and_lock (fib_protocol_t proto,
+ u32 table_id,
+ mfib_source_t src)
+{
+ return (mfib_table_find_or_create_and_lock_i(proto, table_id,
+ src, NULL));
+}
+
+u32
+mfib_table_find_or_create_and_lock_w_name (fib_protocol_t proto,
+ u32 table_id,
+ mfib_source_t src,
+ const u8 *name)
+{
+ return (mfib_table_find_or_create_and_lock_i(proto, table_id,
+ src, name));
+}
+
+/**
+ * @brief Table flush context. Store the indicies of matching FIB entries
+ * that need to be removed.
+ */
+typedef struct mfib_table_flush_ctx_t_
+{
+ /**
+ * The list of entries to flush
+ */
+ fib_node_index_t *mftf_entries;
+
+ /**
+ * The source we are flushing
+ */
+ mfib_source_t mftf_source;
+} mfib_table_flush_ctx_t;
+
+static int
+mfib_table_flush_cb (fib_node_index_t mfib_entry_index,
+ void *arg)
+{
+ mfib_table_flush_ctx_t *ctx = arg;
+
+ if (mfib_entry_is_sourced(mfib_entry_index, ctx->mftf_source))
+ {
+ vec_add1(ctx->mftf_entries, mfib_entry_index);
+ }
+ return (1);
+}
+
+void
+mfib_table_flush (u32 mfib_index,
+ fib_protocol_t proto,
+ mfib_source_t source)
+{
+ fib_node_index_t *mfib_entry_index;
+ mfib_table_flush_ctx_t ctx = {
+ .mftf_entries = NULL,
+ .mftf_source = source,
+ };
+
+ mfib_table_walk(mfib_index, proto,
+ mfib_table_flush_cb,
+ &ctx);
+
+ vec_foreach(mfib_entry_index, ctx.mftf_entries)
+ {
+ mfib_table_entry_delete_index(*mfib_entry_index, source);
+ }
+
+ vec_free(ctx.mftf_entries);
+}
+
static void
mfib_table_destroy (mfib_table_t *mfib_table)
{
void
mfib_table_unlock (u32 fib_index,
- fib_protocol_t proto)
+ fib_protocol_t proto,
+ mfib_source_t source)
{
mfib_table_t *mfib_table;
mfib_table = mfib_table_get(fib_index, proto);
- mfib_table->mft_locks--;
+ mfib_table->mft_locks[source]--;
+ mfib_table->mft_locks[MFIB_TABLE_TOTAL_LOCKS]--;
+
+ if (0 == mfib_table->mft_locks[source])
+ {
+ /*
+ * The source no longer needs the table. flush any routes
+ * from it just in case
+ */
+ mfib_table_flush(fib_index, proto, source);
+ }
- if (0 == mfib_table->mft_locks)
+ if (0 == mfib_table->mft_locks[MFIB_TABLE_TOTAL_LOCKS])
{
- mfib_table_destroy(mfib_table);
+ /*
+ * no more locak from any source - kill it
+ */
+ mfib_table_destroy(mfib_table);
}
}
void
mfib_table_lock (u32 fib_index,
- fib_protocol_t proto)
+ fib_protocol_t proto,
+ mfib_source_t source)
{
mfib_table_t *mfib_table;
mfib_table = mfib_table_get(fib_index, proto);
- mfib_table->mft_locks++;
+ mfib_table->mft_locks[source]++;
+ mfib_table->mft_locks[MFIB_TABLE_TOTAL_LOCKS]++;
+}
+
+u32
+mfib_table_get_n_routes (fib_node_index_t fib_index,
+ fib_protocol_t proto)
+{
+ mfib_table_t *mfib_table;
+
+ mfib_table = mfib_table_get(fib_index, proto);
+
+ return (mfib_table->mft_total_route_counts);
+}
+
+void
+mfib_table_walk (u32 fib_index,
+ fib_protocol_t proto,
+ mfib_table_walk_fn_t fn,
+ void *ctx)
+{
+ switch (proto)
+ {
+ case FIB_PROTOCOL_IP4:
+ ip4_mfib_table_walk(ip4_mfib_get(fib_index), fn, ctx);
+ break;
+ case FIB_PROTOCOL_IP6:
+ ip6_mfib_table_walk(ip6_mfib_get(fib_index), fn, ctx);
+ break;
+ case FIB_PROTOCOL_MPLS:
+ break;
+ }
}
u8*
-format_mfib_table_name (u8* s, va_list ap)
+format_mfib_table_name (u8* s, va_list *ap)
{
- fib_node_index_t fib_index = va_arg(ap, fib_node_index_t);
- fib_protocol_t proto = va_arg(ap, int); // int promotion
+ fib_node_index_t fib_index = va_arg(*ap, fib_node_index_t);
+ fib_protocol_t proto = va_arg(*ap, int); // int promotion
mfib_table_t *mfib_table;
mfib_table = mfib_table_get(fib_index, proto);
return (s);
}
+u8 *
+format_mfib_table_memory (u8 *s, va_list *args)
+{
+ s = format(s, "%U", format_ip4_mfib_table_memory);
+ s = format(s, "%U", format_ip6_mfib_table_memory);
+
+ return (s);
+}
+
static clib_error_t *
mfib_module_init (vlib_main_t * vm)
{
clib_error_t * error;
+ mfib_entry_src_module_init();
+ mfib_entry_module_init();
+ mfib_signal_module_init();
+
if ((error = vlib_call_init_function (vm, fib_module_init)))
return (error);
if ((error = vlib_call_init_function (vm, rn_module_init)))
return (error);
- mfib_entry_module_init();
- mfib_signal_module_init();
-
return (error);
}
Code Review / vpp.git / blobdiff