*/
static fib_entry_src_vft_t fib_entry_src_vft[FIB_SOURCE_MAX];
+/**
+ * Get the VFT for a given source. This is a combination of the source
+ * enum and the interposer flags
+ */
+const fib_entry_src_vft_t*
+fib_entry_src_get_vft (const fib_entry_src_t *esrc)
+{
+ if (esrc->fes_entry_flags & FIB_ENTRY_FLAG_INTERPOSE)
+ {
+ return (&fib_entry_src_vft[FIB_SOURCE_INTERPOSE]);
+ }
+
+ return (&fib_entry_src_vft[esrc->fes_src]);
+}
+
+static void
+fib_entry_src_copy_default (const fib_entry_src_t *orig_src,
+ const fib_entry_t *fib_entry,
+ fib_entry_src_t *copy_src)
+{
+ clib_memcpy(©_src->u, &orig_src->u, sizeof(copy_src->u));
+}
+
void
fib_entry_src_register (fib_source_t source,
const fib_entry_src_vft_t *vft)
{
fib_entry_src_vft[source] = *vft;
+
+ if (NULL == fib_entry_src_vft[source].fesv_copy)
+ {
+ fib_entry_src_vft[source].fesv_copy = fib_entry_src_copy_default;
+ }
}
static int
return (esrc1->fes_src - esrc2->fes_src);
}
-void
+static void
fib_entry_src_action_init (fib_entry_t *fib_entry,
- fib_source_t source)
-
+ fib_source_t source,
+ fib_entry_flag_t flags)
{
fib_entry_src_t esrc = {
.fes_pl = FIB_NODE_INDEX_INVALID,
.fes_flags = FIB_ENTRY_SRC_FLAG_NONE,
.fes_src = source,
+ .fes_entry_flags = flags,
};
- if (NULL != fib_entry_src_vft[source].fesv_init)
- {
- fib_entry_src_vft[source].fesv_init(&esrc);
- }
+ FIB_ENTRY_SRC_VFT_INVOKE(&esrc, fesv_init, (&esrc));
vec_add1(fib_entry->fe_srcs, esrc);
vec_sort_with_function(fib_entry->fe_srcs,
}
static fib_entry_src_t *
-fib_entry_src_find (const fib_entry_t *fib_entry,
- fib_source_t source,
- u32 *index)
+fib_entry_src_find_i (const fib_entry_t *fib_entry,
+ fib_source_t source,
+ u32 *index)
{
fib_entry_src_t *esrc;
return (NULL);
}
+static fib_entry_src_t *
+fib_entry_src_find (const fib_entry_t *fib_entry,
+ fib_source_t source)
+
+{
+ return (fib_entry_src_find_i(fib_entry, source, NULL));
+}
+
int
fib_entry_is_sourced (fib_node_index_t fib_entry_index,
fib_source_t source)
fib_entry = fib_entry_get(fib_entry_index);
- return (NULL != fib_entry_src_find(fib_entry, source, NULL));
+ return (NULL != fib_entry_src_find(fib_entry, source));
}
static fib_entry_src_t *
fib_entry_src_find_or_create (fib_entry_t *fib_entry,
fib_source_t source,
- u32 *index)
+ fib_entry_flag_t flags)
{
fib_entry_src_t *esrc;
- esrc = fib_entry_src_find(fib_entry, source, NULL);
+ esrc = fib_entry_src_find(fib_entry, source);
if (NULL == esrc)
{
- fib_entry_src_action_init(fib_entry, source);
+ fib_entry_src_action_init(fib_entry, source, flags);
}
- return (fib_entry_src_find(fib_entry, source, NULL));
+ return (fib_entry_src_find(fib_entry, source));
}
-void
+static void
fib_entry_src_action_deinit (fib_entry_t *fib_entry,
fib_source_t source)
fib_entry_src_t *esrc;
u32 index = ~0;
- esrc = fib_entry_src_find(fib_entry, source, &index);
+ esrc = fib_entry_src_find_i(fib_entry, source, &index);
ASSERT(NULL != esrc);
- if (NULL != fib_entry_src_vft[source].fesv_deinit)
- {
- fib_entry_src_vft[source].fesv_deinit(esrc);
- }
+ FIB_ENTRY_SRC_VFT_INVOKE(esrc, fesv_deinit, (esrc));
fib_path_ext_list_flush(&esrc->fes_path_exts);
vec_del1(fib_entry->fe_srcs, index);
+ vec_sort_with_function(fib_entry->fe_srcs,
+ fib_entry_src_cmp_for_sort);
}
fib_entry_src_cover_res_t
fib_entry_src_action_cover_change (fib_entry_t *fib_entry,
- fib_source_t source)
+ fib_entry_src_t *esrc)
{
- if (NULL != fib_entry_src_vft[source].fesv_cover_change)
- {
- return (fib_entry_src_vft[source].fesv_cover_change(
- fib_entry_src_find(fib_entry, source, NULL),
- fib_entry));
- }
+ FIB_ENTRY_SRC_VFT_INVOKE_AND_RETURN(esrc, fesv_cover_change,
+ (esrc, fib_entry));
fib_entry_src_cover_res_t res = {
.install = !0,
fib_entry_src_cover_res_t
fib_entry_src_action_cover_update (fib_entry_t *fib_entry,
- fib_source_t source)
+ fib_entry_src_t *esrc)
{
- if (NULL != fib_entry_src_vft[source].fesv_cover_update)
- {
- return (fib_entry_src_vft[source].fesv_cover_update(
- fib_entry_src_find(fib_entry, source, NULL),
- fib_entry));
- }
+ FIB_ENTRY_SRC_VFT_INVOKE_AND_RETURN(esrc, fesv_cover_update,
+ (esrc, fib_entry));
fib_entry_src_cover_res_t res = {
.install = !0,
fib_entry_src_valid_out_label (mpls_label_t label)
{
return ((MPLS_LABEL_IS_REAL(label) ||
+ MPLS_LABEL_POP == label ||
MPLS_IETF_IPV4_EXPLICIT_NULL_LABEL == label ||
MPLS_IETF_IPV6_EXPLICIT_NULL_LABEL == label ||
MPLS_IETF_IMPLICIT_NULL_LABEL == label));
return (dfct);
}
+static dpo_proto_t
+fib_prefix_get_payload_proto (const fib_prefix_t *pfx)
+{
+ switch (pfx->fp_proto)
+ {
+ case FIB_PROTOCOL_IP4:
+ return (DPO_PROTO_IP4);
+ case FIB_PROTOCOL_IP6:
+ return (DPO_PROTO_IP6);
+ case FIB_PROTOCOL_MPLS:
+ return (pfx->fp_payload_proto);
+ }
+
+ ASSERT(0);
+ return (DPO_PROTO_IP4);
+}
+
static void
fib_entry_src_get_path_forwarding (fib_node_index_t path_index,
fib_entry_src_collect_forwarding_ctx_t *ctx)
ctx->fct),
&nh->path_dpo);
fib_path_stack_mpls_disp(path_index,
- ctx->fib_entry->fe_prefix.fp_payload_proto,
+ fib_prefix_get_payload_proto(&ctx->fib_entry->fe_prefix),
+ FIB_MPLS_LSP_MODE_PIPE,
&nh->path_dpo);
break;
{
fib_entry_src_collect_forwarding_ctx_t *ctx;
fib_path_ext_t *path_ext;
+ u32 n_nhs;
ctx = arg;
+ n_nhs = vec_len(ctx->next_hops);
/*
* if the path is not resolved, don't include it.
switch (path_ext->fpe_type)
{
case FIB_PATH_EXT_MPLS:
- if (fib_entry_src_valid_out_label(path_ext->fpe_label_stack[0]))
+ if (fib_entry_src_valid_out_label(path_ext->fpe_label_stack[0].fml_value))
{
/*
* found a matching extension. stack it to obtain the forwarding
/*
* else
* the path does not refine the cover, meaning that
- * the adjacency doesdoes not match the sub-net on the link.
+ * the adjacency does/does not match the sub-net on the link.
* So this path does not contribute forwarding.
*/
break;
fib_entry_src_get_path_forwarding(path_index, ctx);
}
+ /*
+ * a this point 'ctx' has the DPO the path contributed, plus
+ * any labels from path extensions.
+ * check if there are any interpose sources that want to contribute
+ */
+ if (n_nhs < vec_len(ctx->next_hops))
+ {
+ /*
+ * the path contributed a new choice.
+ */
+ const fib_entry_src_vft_t *vft;
+
+ vft = fib_entry_src_get_vft(ctx->esrc);
+
+ if (NULL != vft->fesv_contribute_interpose)
+ {
+ const dpo_id_t *interposer;
+
+ interposer = vft->fesv_contribute_interpose(ctx->esrc,
+ ctx->fib_entry);
+
+ if (NULL != interposer)
+ {
+ dpo_id_t clone = DPO_INVALID;
+
+ dpo_mk_interpose(interposer,
+ &ctx->next_hops[n_nhs].path_dpo,
+ &clone);
+
+ dpo_copy(&ctx->next_hops[n_nhs].path_dpo, &clone);
+ dpo_reset(&clone);
+ }
+ }
+ }
+
return (FIB_PATH_LIST_WALK_CONTINUE);
}
/*
* As an optimisation we allocate the vector of next-hops to be sized
- * equal to the maximum nuber of paths we will need, which is also the
+ * equal to the maximum number of paths we will need, which is also the
* most likely number we will need, since in most cases the paths are 'up'.
*/
vec_validate(ctx.next_hops, fib_path_list_get_n_paths(esrc->fes_pl));
int insert;
fct = fib_entry_get_default_chain_type(fib_entry);
- esrc = fib_entry_src_find(fib_entry, source, NULL);
+ esrc = fib_entry_src_find(fib_entry, source);
/*
* Every entry has its own load-balance object. All changes to the entry's
/*
* uninstall the forwarding chain from the forwarding tables
*/
- FIB_ENTRY_DBG(fib_entry, "uninstall: %d",
- fib_entry->fe_adj_index);
+ FIB_ENTRY_DBG(fib_entry, "uninstall");
if (dpo_id_is_valid(&fib_entry->fe_lb))
{
vec_free(entries);
}
+/*
+ * fib_entry_src_action_copy
+ *
+ * copy a source data from another entry to this one
+ */
+static fib_entry_t *
+fib_entry_src_action_copy (fib_entry_t *fib_entry,
+ const fib_entry_src_t *orig_src)
+{
+ fib_entry_src_t *esrc;
+
+ esrc = fib_entry_src_find_or_create(fib_entry,
+ orig_src->fes_src,
+ orig_src->fes_entry_flags);
+
+ FIB_ENTRY_SRC_VFT_INVOKE(esrc, fesv_copy,
+ (orig_src, fib_entry, esrc));
+
+ fib_path_list_unlock(esrc->fes_pl);
+
+ /*
+ * copy over all the data ...
+ */
+ esrc->fes_flags = orig_src->fes_flags;
+ esrc->fes_pl = orig_src->fes_pl;
+
+ /*
+ * ... then update
+ */
+ esrc->fes_ref_count = 1;
+ esrc->fes_flags |= FIB_ENTRY_SRC_FLAG_INHERITED;
+ esrc->fes_flags &= ~(FIB_ENTRY_SRC_FLAG_ACTIVE |
+ FIB_ENTRY_SRC_FLAG_CONTRIBUTING);
+ esrc->fes_entry_flags &= ~FIB_ENTRY_FLAG_COVERED_INHERIT;
+
+ /*
+ * the source owns a lock on the entry
+ */
+ fib_path_list_lock(esrc->fes_pl);
+ fib_entry_lock(fib_entry_get_index(fib_entry));
+
+ return (fib_entry);
+}
+
+/*
+ * fib_entry_src_action_update
+ *
+ * copy a source data from another entry to this one
+ */
+static fib_entry_src_t *
+fib_entry_src_action_update_from_cover (fib_entry_t *fib_entry,
+ const fib_entry_src_t *orig_src)
+{
+ fib_entry_src_t *esrc;
+
+ esrc = fib_entry_src_find_or_create(fib_entry,
+ orig_src->fes_src,
+ orig_src->fes_entry_flags);
+
+ /*
+ * the source owns a lock on the entry
+ */
+ fib_path_list_unlock(esrc->fes_pl);
+ esrc->fes_pl = orig_src->fes_pl;
+ fib_path_list_lock(esrc->fes_pl);
+
+ return (esrc);
+}
+
+static fib_table_walk_rc_t
+fib_entry_src_covered_inherit_add_i (fib_entry_t *fib_entry,
+ const fib_entry_src_t *cover_src)
+{
+ fib_entry_src_t *esrc;
+
+ esrc = fib_entry_src_find(fib_entry, cover_src->fes_src);
+
+ if (cover_src == esrc)
+ {
+ return (FIB_TABLE_WALK_CONTINUE);
+ }
+
+ if (NULL != esrc)
+ {
+ /*
+ * the covered entry already has this source.
+ */
+ if (esrc->fes_entry_flags & FIB_ENTRY_FLAG_COVERED_INHERIT)
+ {
+ /*
+ * the covered source is itself a COVERED_INHERIT, i.e.
+ * it also pushes this source down the sub-tree.
+ * We consider this more specific covered to be the owner
+ * of the sub-tree from this point down.
+ */
+ return (FIB_TABLE_WALK_SUB_TREE_STOP);
+ }
+ if (esrc->fes_flags & FIB_ENTRY_SRC_FLAG_INHERITED)
+ {
+ /*
+ * The covered's source data has been inherited, presumably
+ * from this cover, i.e. this is a modify.
+ */
+ esrc = fib_entry_src_action_update_from_cover(fib_entry, cover_src);
+ fib_entry_source_change(fib_entry, esrc->fes_src, esrc->fes_src);
+ }
+ else
+ {
+ /*
+ * The covered's source was not inherited and it is also
+ * not inheriting. Nevertheless, it still owns the sub-tree from
+ * this point down.
+ */
+ return (FIB_TABLE_WALK_SUB_TREE_STOP);
+ }
+ }
+ else
+ {
+ /*
+ * The covered does not have this source - add it.
+ */
+ fib_source_t best_source;
+
+ best_source = fib_entry_get_best_source(
+ fib_entry_get_index(fib_entry));
+
+ fib_entry_src_action_copy(fib_entry, cover_src);
+ fib_entry_source_change(fib_entry, best_source, cover_src->fes_src);
+
+ }
+ return (FIB_TABLE_WALK_CONTINUE);
+}
+
+static fib_table_walk_rc_t
+fib_entry_src_covered_inherit_walk_add (fib_node_index_t fei,
+ void *ctx)
+{
+ return (fib_entry_src_covered_inherit_add_i(fib_entry_get(fei), ctx));
+}
+
+static fib_table_walk_rc_t
+fib_entry_src_covered_inherit_walk_remove (fib_node_index_t fei,
+ void *ctx)
+{
+ fib_entry_src_t *cover_src, *esrc;
+ fib_entry_t *fib_entry;
+
+ fib_entry = fib_entry_get(fei);
+
+ cover_src = ctx;
+ esrc = fib_entry_src_find(fib_entry, cover_src->fes_src);
+
+ if (cover_src == esrc)
+ {
+ return (FIB_TABLE_WALK_CONTINUE);
+ }
+
+ if (NULL != esrc)
+ {
+ /*
+ * the covered entry already has this source.
+ */
+ if (esrc->fes_entry_flags & FIB_ENTRY_FLAG_COVERED_INHERIT)
+ {
+ /*
+ * the covered source is itself a COVERED_INHERIT, i.e.
+ * it also pushes this source down the sub-tree.
+ * We consider this more specific covered to be the owner
+ * of the sub-tree from this point down.
+ */
+ return (FIB_TABLE_WALK_SUB_TREE_STOP);
+ }
+ if (esrc->fes_flags & FIB_ENTRY_SRC_FLAG_INHERITED)
+ {
+ /*
+ * The covered's source data has been inherited, presumably
+ * from this cover
+ */
+ fib_entry_src_flag_t remaining;
+
+ remaining = fib_entry_special_remove(fei, cover_src->fes_src);
+
+ ASSERT(FIB_ENTRY_SRC_FLAG_ADDED == remaining);
+ }
+ else
+ {
+ /*
+ * The covered's source was not inherited and it is also
+ * not inheriting. Nevertheless, it still owns the sub-tree from
+ * this point down.
+ */
+ return (FIB_TABLE_WALK_SUB_TREE_STOP);
+ }
+ }
+ else
+ {
+ /*
+ * The covered does not have this source - that's an error,
+ * since it should have inherited, but there is nothing we can do
+ * about it now.
+ */
+ }
+ return (FIB_TABLE_WALK_CONTINUE);
+}
+
+void
+fib_entry_src_inherit (const fib_entry_t *cover,
+ fib_entry_t *covered)
+{
+ CLIB_UNUSED(fib_source_t source);
+ const fib_entry_src_t *src;
+
+ FOR_EACH_SRC_ADDED(cover, src, source,
+ ({
+ if ((src->fes_entry_flags & FIB_ENTRY_FLAG_COVERED_INHERIT) ||
+ (src->fes_flags & FIB_ENTRY_SRC_FLAG_INHERITED))
+ {
+ fib_entry_src_covered_inherit_add_i(covered, src);
+ }
+ }))
+}
+
+static void
+fib_entry_src_covered_inherit_add (fib_entry_t *fib_entry,
+ fib_source_t source)
+
+{
+ fib_entry_src_t *esrc;
+
+ esrc = fib_entry_src_find(fib_entry, source);
+
+ ASSERT(esrc->fes_flags & FIB_ENTRY_SRC_FLAG_ACTIVE);
+
+ if ((esrc->fes_entry_flags & FIB_ENTRY_FLAG_COVERED_INHERIT) ||
+ (esrc->fes_flags & FIB_ENTRY_SRC_FLAG_INHERITED))
+ {
+ fib_table_sub_tree_walk(fib_entry->fe_fib_index,
+ fib_entry->fe_prefix.fp_proto,
+ &fib_entry->fe_prefix,
+ fib_entry_src_covered_inherit_walk_add,
+ esrc);
+ }
+}
+
+static void
+fib_entry_src_covered_inherit_remove (fib_entry_t *fib_entry,
+ fib_entry_src_t *esrc)
+
+{
+ ASSERT(!(esrc->fes_flags & FIB_ENTRY_SRC_FLAG_ACTIVE));
+
+ if (esrc->fes_entry_flags & FIB_ENTRY_FLAG_COVERED_INHERIT)
+ {
+ fib_table_sub_tree_walk(fib_entry->fe_fib_index,
+ fib_entry->fe_prefix.fp_proto,
+ &fib_entry->fe_prefix,
+ fib_entry_src_covered_inherit_walk_remove,
+ esrc);
+ }
+}
+
void
fib_entry_src_action_activate (fib_entry_t *fib_entry,
fib_source_t source)
{
int houston_we_are_go_for_install;
+ const fib_entry_src_vft_t *vft;
fib_entry_src_t *esrc;
- esrc = fib_entry_src_find(fib_entry, source, NULL);
+ esrc = fib_entry_src_find(fib_entry, source);
ASSERT(!(esrc->fes_flags & FIB_ENTRY_SRC_FLAG_ACTIVE));
ASSERT(esrc->fes_flags & FIB_ENTRY_SRC_FLAG_ADDED);
- esrc->fes_flags |= FIB_ENTRY_SRC_FLAG_ACTIVE;
+ esrc->fes_flags |= (FIB_ENTRY_SRC_FLAG_ACTIVE |
+ FIB_ENTRY_SRC_FLAG_CONTRIBUTING);
+ vft = fib_entry_src_get_vft(esrc);
- if (NULL != fib_entry_src_vft[source].fesv_activate)
+ if (NULL != vft->fesv_activate)
{
- houston_we_are_go_for_install =
- fib_entry_src_vft[source].fesv_activate(esrc, fib_entry);
+ houston_we_are_go_for_install = vft->fesv_activate(esrc, fib_entry);
}
else
{
FIB_ENTRY_DBG(fib_entry, "activate: %d",
fib_entry->fe_parent);
+ /*
+ * If this source should push its state to covered prefixs, do that now.
+ */
+ fib_entry_src_covered_inherit_add(fib_entry, source);
+
if (0 != houston_we_are_go_for_install)
{
fib_entry_src_action_install(fib_entry, source);
fib_node_index_t path_list_index;
fib_entry_src_t *esrc;
- esrc = fib_entry_src_find(fib_entry, source, NULL);
+ esrc = fib_entry_src_find(fib_entry, source);
ASSERT(esrc->fes_flags & FIB_ENTRY_SRC_FLAG_ACTIVE);
- if (NULL != fib_entry_src_vft[source].fesv_deactivate)
- {
- fib_entry_src_vft[source].fesv_deactivate(esrc, fib_entry);
- }
+ FIB_ENTRY_SRC_VFT_INVOKE(esrc, fesv_deactivate,
+ (esrc, fib_entry));
- esrc->fes_flags &= ~FIB_ENTRY_SRC_FLAG_ACTIVE;
+ esrc->fes_flags &= ~(FIB_ENTRY_SRC_FLAG_ACTIVE |
+ FIB_ENTRY_SRC_FLAG_CONTRIBUTING);
FIB_ENTRY_DBG(fib_entry, "deactivate: %d", fib_entry->fe_parent);
+ /*
+ * If this source should pull its state from covered prefixs, do that now.
+ * If this source also has the INHERITED flag set then it has a cover
+ * that wants to push down forwarding. We only want the covereds to see
+ * one update.
+ */
+ fib_entry_src_covered_inherit_remove(fib_entry, esrc);
+
/*
* un-link from an old path-list. Check for any loops this will clear
*/
vec_foreach(esrc, fib_entry->fe_srcs)
{
- if (NULL != fib_entry_src_vft[esrc->fes_src].fesv_fwd_update)
- {
- fib_entry_src_vft[esrc->fes_src].fesv_fwd_update(esrc,
- fib_entry,
- source);
- }
+ FIB_ENTRY_SRC_VFT_INVOKE(esrc, fesv_fwd_update,
+ (esrc, fib_entry, source));
}
}
fib_source_t source)
{
fib_node_index_t path_list_index;
+ const fib_entry_src_vft_t *vft;
fib_entry_src_t *esrc;
+ int remain_installed;
- esrc = fib_entry_src_find(fib_entry, source, NULL);
+ esrc = fib_entry_src_find(fib_entry, source);
ASSERT(esrc->fes_flags & FIB_ENTRY_SRC_FLAG_ACTIVE);
fib_entry->fe_parent,
esrc->fes_pl);
+ /*
+ * call the source to reactive and get the go/no-go to remain installed
+ */
+ vft = fib_entry_src_get_vft(esrc);
+
+ if (NULL != vft->fesv_reactivate)
+ {
+ remain_installed = vft->fesv_reactivate(esrc, fib_entry);
+ }
+ else
+ {
+ remain_installed = 1;
+ }
+
if (fib_entry->fe_parent != esrc->fes_pl)
{
/*
fib_entry_recursive_loop_detect_i(fib_entry->fe_parent);
fib_path_list_unlock(path_list_index);
+
+ /*
+ * If this source should push its state to covered prefixs, do that now.
+ */
+ fib_entry_src_covered_inherit_add(fib_entry, source);
+ }
+
+ if (!remain_installed)
+ {
+ fib_entry_src_action_uninstall(fib_entry);
+ }
+ else
+ {
+ fib_entry_src_action_install(fib_entry, source);
}
- fib_entry_src_action_install(fib_entry, source);
fib_entry_src_action_fwd_update(fib_entry, source);
}
{
fib_entry_src_t *esrc;
- esrc = fib_entry_src_find(fib_entry, source, NULL);
+ esrc = fib_entry_src_find(fib_entry, source);
- if (NULL != fib_entry_src_vft[source].fesv_installed)
- {
- fib_entry_src_vft[source].fesv_installed(esrc,
- fib_entry);
- }
+ FIB_ENTRY_SRC_VFT_INVOKE(esrc, fesv_installed,
+ (esrc, fib_entry));
fib_entry_src_action_fwd_update(fib_entry, source);
}
fib_node_index_t fib_entry_index;
fib_entry_src_t *esrc;
- esrc = fib_entry_src_find_or_create(fib_entry, source, NULL);
+ esrc = fib_entry_src_find_or_create(fib_entry, source, flags);
+ ASSERT(esrc->fes_ref_count < 255);
esrc->fes_ref_count++;
+ if (flags != esrc->fes_entry_flags)
+ {
+ FIB_ENTRY_SRC_VFT_INVOKE(esrc, fesv_flags_change,
+ (esrc, fib_entry, flags));
+ }
+ esrc->fes_entry_flags = flags;
+
if (1 != esrc->fes_ref_count)
{
/*
return (fib_entry);
}
- esrc->fes_entry_flags = flags;
-
/*
* save variable so we can recover from a fib_entry realloc.
*/
fib_entry_index = fib_entry_get_index(fib_entry);
- if (NULL != fib_entry_src_vft[source].fesv_add)
- {
- fib_entry_src_vft[source].fesv_add(esrc,
- fib_entry,
- flags,
- fib_entry_get_dpo_proto(fib_entry),
- dpo);
- }
+ FIB_ENTRY_SRC_VFT_INVOKE(esrc, fesv_add,
+ (esrc,
+ fib_entry,
+ flags,
+ fib_entry_get_dpo_proto(fib_entry),
+ dpo));
fib_entry = fib_entry_get(fib_entry_index);
fib_node_index_t fib_entry_index, old_path_list_index;
fib_entry_src_t *esrc;
- esrc = fib_entry_src_find_or_create(fib_entry, source, NULL);
+ esrc = fib_entry_src_find_or_create(fib_entry, source, flags);
if (NULL == esrc)
+ {
return (fib_entry_src_action_add(fib_entry, source, flags, dpo));
+ }
old_path_list_index = esrc->fes_pl;
esrc->fes_entry_flags = flags;
*/
fib_entry_index = fib_entry_get_index(fib_entry);
- if (NULL != fib_entry_src_vft[source].fesv_add)
- {
- fib_entry_src_vft[source].fesv_add(esrc,
- fib_entry,
- flags,
- fib_entry_get_dpo_proto(fib_entry),
- dpo);
- }
+ FIB_ENTRY_SRC_VFT_INVOKE(esrc, fesv_add,
+ (esrc,
+ fib_entry,
+ flags,
+ fib_entry_get_dpo_proto(fib_entry),
+ dpo));
fib_entry = fib_entry_get(fib_entry_index);
return (fib_entry);
}
+fib_entry_src_flag_t
+fib_entry_src_action_remove_or_update_inherit (fib_entry_t *fib_entry,
+ fib_source_t source)
+{
+ fib_entry_src_t *esrc;
+
+ esrc = fib_entry_src_find(fib_entry, source);
+
+ if (NULL == esrc)
+ return (FIB_ENTRY_SRC_FLAG_ACTIVE);
+
+ if ((esrc->fes_entry_flags & FIB_ENTRY_FLAG_COVERED_INHERIT) &&
+ (esrc->fes_flags & FIB_ENTRY_SRC_FLAG_INHERITED))
+ {
+ fib_entry_src_t *cover_src;
+ fib_node_index_t coveri;
+ fib_entry_t *cover;
+
+ /*
+ * this source was pushing inherited state, but so is its
+ * cover. Now that this source is going away, we need to
+ * pull the covers forwarding and use it to update the covereds.
+ * Go grab the path-list from the cover, rather than start a walk from
+ * the cover, so we don't recursively update this entry.
+ */
+ coveri = fib_table_get_less_specific(fib_entry->fe_fib_index,
+ &fib_entry->fe_prefix);
+
+ /*
+ * only the default route has itself as its own cover, but the
+ * default route cannot have inherited from something else.
+ */
+ ASSERT(coveri != fib_entry_get_index(fib_entry));
+
+ cover = fib_entry_get(coveri);
+ cover_src = fib_entry_src_find(cover, source);
+
+ ASSERT(NULL != cover_src);
+
+ esrc = fib_entry_src_action_update_from_cover(fib_entry, cover_src);
+ esrc->fes_entry_flags &= ~FIB_ENTRY_FLAG_COVERED_INHERIT;
+
+ /*
+ * Now push the new state from the cover down to the covereds
+ */
+ fib_entry_src_covered_inherit_add(fib_entry, source);
+
+ return (esrc->fes_flags);
+ }
+ else
+ {
+ return (fib_entry_src_action_remove(fib_entry, source));
+ }
+}
fib_entry_src_flag_t
fib_entry_src_action_remove (fib_entry_t *fib_entry,
fib_entry_src_flag_t sflags;
fib_entry_src_t *esrc;
- esrc = fib_entry_src_find(fib_entry, source, NULL);
+ esrc = fib_entry_src_find(fib_entry, source);
if (NULL == esrc)
return (FIB_ENTRY_SRC_FLAG_ACTIVE);
if (esrc->fes_flags & FIB_ENTRY_SRC_FLAG_ACTIVE)
{
- fib_entry_src_action_deactivate(fib_entry, source);
+ fib_entry_src_action_deactivate(fib_entry, source);
+ }
+ else if (esrc->fes_flags & FIB_ENTRY_SRC_FLAG_CONTRIBUTING)
+ {
+ FIB_ENTRY_SRC_VFT_INVOKE(esrc, fesv_deactivate,
+ (esrc, fib_entry));
+ esrc->fes_flags &= ~FIB_ENTRY_SRC_FLAG_CONTRIBUTING;
}
old_path_list = esrc->fes_pl;
- if (NULL != fib_entry_src_vft[source].fesv_remove)
- {
- fib_entry_src_vft[source].fesv_remove(esrc);
- }
+ FIB_ENTRY_SRC_VFT_INVOKE(esrc, fesv_remove, (esrc));
fib_path_list_unlock(old_path_list);
fib_entry_unlock(fib_entry_get_index(fib_entry));
*/
if (ip46_address_is_zero(&rpath->frp_addr) &&
(~0 != rpath->frp_sw_if_index) &&
+ !(rpath->frp_flags & FIB_ROUTE_PATH_DVR) &&
(fib_entry->fe_fib_index !=
fib_table_get_index_for_sw_if_index(fib_entry_get_proto(fib_entry),
rpath->frp_sw_if_index)))
}
/*
- * fib_route_attached_cross_table
- *
- * Return true the the route is attached via an interface that
- * is not in the same table as the route
+ * Return true if the path is attached
*/
static inline int
fib_path_is_attached (const fib_route_path_t *rpath)
{
+ /*
+ * DVR paths are not attached, since we are not playing the
+ * L3 game with these
+ */
+ if (rpath->frp_flags & FIB_ROUTE_PATH_DVR)
+ {
+ return (0);
+ }
+
/*
* - All zeros next-hop
* - a valid interface
{
esrc->fes_entry_flags &= ~FIB_ENTRY_FLAG_ATTACHED;
}
+ if (rpath->frp_flags & FIB_ROUTE_PATH_DEAG)
+ {
+ esrc->fes_entry_flags |= FIB_ENTRY_FLAG_LOOSE_URPF_EXEMPT;
+ }
}
- if (fib_route_attached_cross_table(fib_entry, rpath))
+ if (fib_route_attached_cross_table(fib_entry, rpath) &&
+ !(esrc->fes_entry_flags & FIB_ENTRY_FLAG_NO_ATTACHED_EXPORT))
{
esrc->fes_entry_flags |= FIB_ENTRY_FLAG_IMPORT;
}
*/
fib_entry_index = fib_entry_get_index(fib_entry);
- esrc = fib_entry_src_find(fib_entry, source, NULL);
+ esrc = fib_entry_src_find(fib_entry, source);
if (NULL == esrc)
{
+ const dpo_id_t *dpo;
+
+ if (flags == FIB_ENTRY_FLAG_EXCLUSIVE) {
+ dpo = &rpath->dpo;
+ } else {
+ dpo = drop_dpo_get(fib_entry_get_dpo_proto(fib_entry));
+ }
+
fib_entry =
fib_entry_src_action_add(fib_entry,
source,
flags,
- drop_dpo_get(
- fib_entry_get_dpo_proto(fib_entry)));
- esrc = fib_entry_src_find(fib_entry, source, NULL);
+ dpo);
+ esrc = fib_entry_src_find(fib_entry, source);
}
/*
*/
old_path_list = esrc->fes_pl;
- ASSERT(NULL != fib_entry_src_vft[source].fesv_path_add);
+ ASSERT(FIB_ENTRY_SRC_VFT_EXISTS(esrc, fesv_path_add));
pl_flags = fib_entry_src_flags_2_path_list_flags(fib_entry_get_flags_i(fib_entry));
fib_entry_flags_update(fib_entry, rpath, &pl_flags, esrc);
- fib_entry_src_vft[source].fesv_path_add(esrc, fib_entry, pl_flags, rpath);
+ FIB_ENTRY_SRC_VFT_INVOKE(esrc, fesv_path_add,
+ (esrc, fib_entry, pl_flags, rpath));
fib_entry = fib_entry_get(fib_entry_index);
fib_path_list_lock(esrc->fes_pl);
fib_entry_t*
fib_entry_src_action_path_swap (fib_entry_t *fib_entry,
fib_source_t source,
- fib_entry_flag_t flags,
+ fib_entry_flag_t flags,
const fib_route_path_t *rpaths)
{
fib_node_index_t old_path_list, fib_entry_index;
const fib_route_path_t *rpath;
fib_entry_src_t *esrc;
- esrc = fib_entry_src_find(fib_entry, source, NULL);
+ esrc = fib_entry_src_find(fib_entry, source);
/*
* save variable so we can recover from a fib_entry realloc.
if (NULL == esrc)
{
- fib_entry = fib_entry_src_action_add(fib_entry,
+ const dpo_id_t *dpo;
+
+ if (flags == FIB_ENTRY_FLAG_EXCLUSIVE) {
+ dpo = &rpaths->dpo;
+ } else {
+ dpo = drop_dpo_get(fib_entry_get_dpo_proto(fib_entry));
+ }
+
+ fib_entry = fib_entry_src_action_add(fib_entry,
source,
flags,
- drop_dpo_get(
- fib_entry_get_dpo_proto(fib_entry)));
- esrc = fib_entry_src_find(fib_entry, source, NULL);
+ dpo);
+ esrc = fib_entry_src_find(fib_entry, source);
+ }
+ else
+ {
+ if (flags != esrc->fes_entry_flags)
+ {
+ FIB_ENTRY_SRC_VFT_INVOKE(esrc, fesv_flags_change,
+ (esrc, fib_entry, flags));
+ }
+ esrc->fes_entry_flags = flags;
}
/*
*/
old_path_list = esrc->fes_pl;
- ASSERT(NULL != fib_entry_src_vft[source].fesv_path_swap);
+ ASSERT(FIB_ENTRY_SRC_VFT_EXISTS(esrc, fesv_path_swap));
pl_flags = fib_entry_src_flags_2_path_list_flags(flags);
fib_entry_flags_update(fib_entry, rpath, &pl_flags, esrc);
}
- fib_entry_src_vft[source].fesv_path_swap(esrc,
- fib_entry,
- pl_flags,
- rpaths);
+ FIB_ENTRY_SRC_VFT_INVOKE(esrc, fesv_path_swap,
+ (esrc, fib_entry,
+ pl_flags, rpaths));
fib_entry = fib_entry_get(fib_entry_index);
fib_node_index_t old_path_list;
fib_entry_src_t *esrc;
- esrc = fib_entry_src_find(fib_entry, source, NULL);
+ esrc = fib_entry_src_find(fib_entry, source);
ASSERT(NULL != esrc);
ASSERT(esrc->fes_flags & FIB_ENTRY_SRC_FLAG_ADDED);
*/
old_path_list = esrc->fes_pl;
- ASSERT(NULL != fib_entry_src_vft[source].fesv_path_remove);
+ ASSERT(FIB_ENTRY_SRC_VFT_EXISTS(esrc, fesv_path_remove));
pl_flags = fib_entry_src_flags_2_path_list_flags(fib_entry_get_flags_i(fib_entry));
fib_entry_flags_update(fib_entry, rpath, &pl_flags, esrc);
- fib_entry_src_vft[source].fesv_path_remove(esrc, pl_flags, rpath);
+ FIB_ENTRY_SRC_VFT_INVOKE(esrc, fesv_path_remove,
+ (esrc, pl_flags, rpath));
/*
* lock the new path-list, unlock the old if it had one
/*
* no more paths left from this source
*/
- fib_entry_src_action_remove(fib_entry, source);
+ fib_entry_src_action_remove_or_update_inherit(fib_entry, source);
return (FIB_ENTRY_SRC_FLAG_NONE);
}
}
{
fib_entry_src_t *esrc;
- esrc = fib_entry_src_find(fib_entry, source, NULL);
+ esrc = fib_entry_src_find(fib_entry, source);
+
+ FIB_ENTRY_SRC_VFT_INVOKE_AND_RETURN(esrc, fesv_format, (esrc, s));
- if (NULL != fib_entry_src_vft[source].fesv_format)
- {
- return (fib_entry_src_vft[source].fesv_format(esrc, s));
- }
return (s);
}
return (ADJ_INDEX_INVALID);
fib_entry = fib_entry_get(fib_entry_index);
- esrc = fib_entry_src_find(fib_entry, source, NULL);
+ esrc = fib_entry_src_find(fib_entry, source);
if (NULL != esrc)
{
return (0);
fib_entry = fib_entry_get(fib_entry_index);
- esrc = fib_entry_src_find(fib_entry, source, NULL);
+ esrc = fib_entry_src_find(fib_entry, source);
if (NULL != esrc)
{
fib_path_list_contribute_forwarding(
esrc->fes_pl,
fib_entry_get_default_chain_type(fib_entry),
+ FIB_PATH_LIST_FWD_FLAG_NONE,
dpo);
return (dpo_id_is_valid(dpo));
fib_entry = fib_entry_get(entry_index);
- esrc = fib_entry_src_find(fib_entry, source, NULL);
+ esrc = fib_entry_src_find(fib_entry, source);
if (NULL != esrc)
{
fib_entry = fib_entry_get(entry_index);
- esrc = fib_entry_src_find(fib_entry, source, NULL);
+ esrc = fib_entry_src_find(fib_entry, source);
if (NULL != esrc)
{
fib_entry_src_t *esrc;
fib_entry = fib_entry_get(fib_entry_index);
- esrc = fib_entry_src_find(fib_entry, source, NULL);
+ esrc = fib_entry_src_find(fib_entry, source);
- if (NULL != esrc &&
- NULL != fib_entry_src_vft[source].fesv_set_data)
+ if (NULL != esrc)
{
- fib_entry_src_vft[source].fesv_set_data(esrc, fib_entry, data);
+ FIB_ENTRY_SRC_VFT_INVOKE(esrc, fesv_set_data,
+ (esrc, fib_entry, data));
}
}
fib_entry_src_t *esrc;
fib_entry = fib_entry_get(fib_entry_index);
- esrc = fib_entry_src_find(fib_entry, source, NULL);
+ esrc = fib_entry_src_find(fib_entry, source);
- if (NULL != esrc &&
- NULL != fib_entry_src_vft[source].fesv_get_data)
+ if (NULL != esrc)
{
- return (fib_entry_src_vft[source].fesv_get_data(esrc, fib_entry));
+ FIB_ENTRY_SRC_VFT_INVOKE_AND_RETURN(esrc, fesv_get_data,
+ (esrc, fib_entry));
}
return (NULL);
}
{
fib_entry_src_rr_register();
fib_entry_src_interface_register();
+ fib_entry_src_interpose_register();
fib_entry_src_default_route_register();
fib_entry_src_special_register();
fib_entry_src_api_register();
Code Review / vpp.git / blobdiff