*/
static const char *fib_source_names[] = FIB_SOURCES;
static const char *fib_attribute_names[] = FIB_ENTRY_ATTRIBUTES;
+static const char *fib_src_attribute_names[] = FIB_ENTRY_SRC_ATTRIBUTES;
/*
* Pool for all fib_entries
u8 *
format_fib_entry (u8 * s, va_list * args)
{
+ fib_entry_src_attribute_t sattr;
fib_forward_chain_type_t fct;
fib_entry_attribute_t attr;
fib_entry_t *fib_entry;
s = format (s, "%U", format_fib_prefix, &fib_entry->fe_prefix);
- if (level >= FIB_ENTRY_FORMAT_DETAIL)
- {
+// if (level >= FIB_ENTRY_FORMAT_DETAIL)
+// {
s = format (s, " fib:%d", fib_entry->fe_fib_index);
s = format (s, " index:%d", fib_entry_get_index(fib_entry));
s = format (s, " locks:%d", fib_entry->fe_node.fn_locks);
FOR_EACH_SRC_ADDED(fib_entry, src, source,
({
s = format (s, "\n %U", format_fib_source, source);
- s = fib_entry_src_format(fib_entry, source, s);
- s = format (s, " refs:%d ", src->fes_ref_count);
+ s = format (s, " refs:%d", src->fes_ref_count);
if (FIB_ENTRY_FLAG_NONE != src->fes_entry_flags) {
- s = format(s, "flags:");
+ s = format(s, " entry-flags:");
FOR_EACH_FIB_ATTRIBUTE(attr) {
if ((1<<attr) & src->fes_entry_flags) {
s = format (s, "%s,", fib_attribute_names[attr]);
}
}
}
+ if (FIB_ENTRY_SRC_FLAG_NONE != src->fes_flags) {
+ s = format(s, " src-flags:");
+ FOR_EACH_FIB_SRC_ATTRIBUTE(sattr) {
+ if ((1<<sattr) & src->fes_flags) {
+ s = format (s, "%s,", fib_src_attribute_names[sattr]);
+ }
+ }
+ }
+ s = fib_entry_src_format(fib_entry, source, s);
s = format (s, "\n");
if (FIB_NODE_INDEX_INVALID != src->fes_pl)
{
}));
s = format (s, "\n forwarding: ");
- }
- else
- {
- s = format (s, "\n");
- }
+// }
+// else
+// {
+// s = format (s, "\n");
+// }
fct = fib_entry_get_default_chain_type(fib_entry);
fib_entry = fib_entry_from_fib_node(node);
+ ASSERT(!dpo_id_is_valid(&fib_entry->fe_lb));
+
FOR_EACH_DELEGATE_CHAIN(fib_entry, fdt, fed,
{
dpo_reset(&fed->fd_dpo);
ASSERT(0 == vec_len(fib_entry->fe_delegates));
vec_free(fib_entry->fe_delegates);
- if (fib_entry_has_multiple_srcs(fib_entry))
- {
- vec_free(fib_entry->fe_u_src.fe_srcs);
- }
+ vec_free(fib_entry->fe_srcs);
pool_put(fib_entry_pool, fib_entry);
}
-static const fib_entry_src_t*
+static fib_entry_src_t*
fib_entry_get_best_src_i (const fib_entry_t *fib_entry)
{
- const fib_entry_src_t *bsrc;
+ fib_entry_src_t *bsrc;
/*
* the enum of sources is deliberately arranged in priority order
*/
- if (fib_entry_has_multiple_srcs(fib_entry))
+ if (0 == vec_len(fib_entry->fe_srcs))
{
- ASSERT(vec_len(fib_entry->fe_u_src.fe_srcs));
-
- bsrc = vec_elt_at_index(fib_entry->fe_u_src.fe_srcs, 0);
+ bsrc = NULL;
}
else
{
- bsrc = &fib_entry->fe_u_src.fe_src;
+ bsrc = vec_elt_at_index(fib_entry->fe_srcs, 0);
}
return (bsrc);
{
return (esrc->fes_src);
}
- return (FIB_SOURCE_INVALID);
+ return (FIB_SOURCE_MAX);
}
static fib_entry_flag_t
return (FIB_ENTRY_FLAG_NONE);
}
-fib_entry_flag_t
-fib_entry_get_flags_i (const fib_entry_t *fib_entry)
-{
- const fib_entry_src_t *esrc;
-
- esrc = fib_entry_get_best_src_i(fib_entry);
-
- ASSERT(esrc);
-
- return (esrc->fes_entry_flags);
-}
-
fib_entry_flag_t
fib_entry_get_flags (fib_node_index_t fib_entry_index)
{
pool_foreach(entry, fib_entry_pool,
({
- if (fib_entry_has_multiple_srcs(entry))
- {
- n_srcs += vec_len(entry->fe_u_src.fe_srcs);
- vec_foreach(esrc, entry->fe_u_src.fe_srcs)
- {
- n_exts += fib_path_ext_list_length(&esrc->fes_path_exts);
- }
- }
- else
- {
- n_exts += fib_path_ext_list_length(&entry->fe_u_src.fe_src.fes_path_exts);
- }
+ n_srcs += vec_len(entry->fe_srcs);
+ vec_foreach(esrc, entry->fe_srcs)
+ {
+ n_exts += fib_path_ext_list_length(&esrc->fes_path_exts);
+ }
}));
fib_show_memory_usage("Entry Source",
dpo_copy(dpo, &fed->fd_dpo);
}
+ /*
+ * use the drop DPO is nothing else is present
+ */
+ if (!dpo_id_is_valid(dpo))
+ {
+ dpo_copy(dpo, drop_dpo_get(fib_forw_chain_type_to_dpo_proto(fct)));
+ }
+
/*
* don't allow the special index indicating replicate.vs.load-balance
* to escape to the clients
ASSERT((fct == FIB_FORW_CHAIN_TYPE_UNICAST_IP4 ||
fct == FIB_FORW_CHAIN_TYPE_UNICAST_IP6));
- return (&fib_entry->fe_lb);
+ if (dpo_id_is_valid(&fib_entry->fe_lb))
+ {
+ return (&fib_entry->fe_lb);
+ }
+
+ return (drop_dpo_get(fib_forw_chain_type_to_dpo_proto(fct)));
}
adj_index_t
static fib_entry_t*
fib_entry_post_flag_update_actions (fib_entry_t *fib_entry,
- fib_source_t source,
fib_entry_flag_t old_flags)
{
fib_node_index_t fei;
fib_entry_flag_t old_flags)
{
fib_entry = fib_entry_post_flag_update_actions(fib_entry,
- source,
old_flags);
fib_entry_src_action_installed(fib_entry, source);
}
fib_entry_post_install_actions(fib_entry, source, old_flags);
}
+void
+fib_entry_recalculate_forwarding (fib_node_index_t fib_entry_index)
+{
+ fib_source_t best_source;
+ fib_entry_t *fib_entry;
+ fib_entry_src_t *bsrc;
+
+ fib_entry = fib_entry_get(fib_entry_index);
+
+ bsrc = fib_entry_get_best_src_i(fib_entry);
+ best_source = fib_entry_src_get_source(bsrc);
+
+ fib_entry_src_action_reactivate(fib_entry, best_source);
+}
+
static void
-fib_entry_source_change (fib_entry_t *fib_entry,
- fib_source_t best_source,
- fib_source_t new_source,
- fib_entry_flag_t old_flags)
+fib_entry_source_change_w_flags (fib_entry_t *fib_entry,
+ fib_source_t old_source,
+ fib_entry_flag_t old_flags,
+ fib_source_t new_source)
{
- /*
- * if the path list for the source passed is invalid,
- * then we need to create a new one. else we are updating
- * an existing.
- */
- if (new_source < best_source)
+ if (new_source < old_source)
{
/*
* we have a new winning source.
*/
- fib_entry_src_action_deactivate(fib_entry, best_source);
+ fib_entry_src_action_deactivate(fib_entry, old_source);
fib_entry_src_action_activate(fib_entry, new_source);
}
- else if (new_source > best_source)
+ else if (new_source > old_source)
{
- /*
- * the new source loses. nothing to do here.
- * the data from the source is saved in the path-list created
- */
- return;
+ /*
+ * the new source loses. Re-activate the winning sources
+ * in case it is an interposer and hence relied on the losing
+ * source's path-list.
+ */
+ fib_entry_src_action_reactivate(fib_entry, old_source);
+ return;
}
else
{
* But the path-list was updated, which will contribute new forwarding,
* so install it.
*/
- fib_entry_src_action_deactivate(fib_entry, new_source);
- fib_entry_src_action_activate(fib_entry, new_source);
+ fib_entry_src_action_reactivate(fib_entry, new_source);
}
fib_entry_post_update_actions(fib_entry, new_source, old_flags);
}
+void
+fib_entry_source_change (fib_entry_t *fib_entry,
+ fib_source_t old_source,
+ fib_source_t new_source)
+{
+ fib_entry_flag_t old_flags;
+
+ old_flags = fib_entry_get_flags_for_source(
+ fib_entry_get_index(fib_entry), old_source);
+
+ return (fib_entry_source_change_w_flags(fib_entry, old_source,
+ old_flags, new_source));
+}
+
void
fib_entry_special_add (fib_node_index_t fib_entry_index,
fib_source_t source,
fib_entry_flag_t flags,
const dpo_id_t *dpo)
{
- const fib_entry_src_t *bsrc;
fib_source_t best_source;
- fib_entry_flag_t bflags;
fib_entry_t *fib_entry;
fib_entry = fib_entry_get(fib_entry_index);
-
- bsrc = fib_entry_get_best_src_i(fib_entry);
- best_source = fib_entry_src_get_source(bsrc);
- bflags = fib_entry_src_get_flags(bsrc);
+ best_source = fib_entry_get_best_source(fib_entry_index);
fib_entry = fib_entry_src_action_add(fib_entry, source, flags, dpo);
- fib_entry_source_change(fib_entry, best_source, source, bflags);
+ fib_entry_source_change(fib_entry, best_source, source);
}
void
fib_entry_flag_t flags,
const dpo_id_t *dpo)
{
- const fib_entry_src_t *bsrc;
fib_source_t best_source;
- fib_entry_flag_t bflags;
fib_entry_t *fib_entry;
fib_entry = fib_entry_get(fib_entry_index);
-
- bsrc = fib_entry_get_best_src_i(fib_entry);
- best_source = fib_entry_src_get_source(bsrc);
- bflags = fib_entry_src_get_flags(bsrc);
+ best_source = fib_entry_get_best_source(fib_entry_index);
fib_entry = fib_entry_src_action_update(fib_entry, source, flags, dpo);
- fib_entry_source_change(fib_entry, best_source, source, bflags);
+ fib_entry_source_change(fib_entry, best_source, source);
}
fib_entry_flag_t flags,
const fib_route_path_t *rpath)
{
- const fib_entry_src_t *bsrc;
fib_source_t best_source;
- fib_entry_flag_t bflags;
fib_entry_t *fib_entry;
+ fib_entry_src_t *bsrc;
ASSERT(1 == vec_len(rpath));
bsrc = fib_entry_get_best_src_i(fib_entry);
best_source = fib_entry_src_get_source(bsrc);
- bflags = fib_entry_src_get_flags(bsrc);
fib_entry = fib_entry_src_action_path_add(fib_entry, source, flags, rpath);
- /*
- * if the path list for the source passed is invalid,
- * then we need to create a new one. else we are updating
- * an existing.
- */
- if (source < best_source)
+ fib_entry_source_change(fib_entry, best_source, source);
+}
+
+static fib_entry_src_flag_t
+fib_entry_src_burn_only_inherited (fib_entry_t *fib_entry)
+{
+ fib_entry_src_t *src;
+ fib_source_t source;
+ int has_only_inherited_sources = 1;
+
+ FOR_EACH_SRC_ADDED(fib_entry, src, source,
+ ({
+ if (!(src->fes_flags & FIB_ENTRY_SRC_FLAG_INHERITED))
+ {
+ has_only_inherited_sources = 0;
+ break;
+ }
+ }));
+ if (has_only_inherited_sources)
{
- /*
- * we have a new winning source.
- */
- fib_entry_src_action_deactivate(fib_entry, best_source);
- fib_entry_src_action_activate(fib_entry, source);
+ FOR_EACH_SRC_ADDED(fib_entry, src, source,
+ ({
+ fib_entry_src_action_remove(fib_entry, source);
+ }));
+ return (FIB_ENTRY_SRC_FLAG_NONE);
}
- else if (source > best_source)
+ else
{
- /*
- * the new source loses. nothing to do here.
- * the data from the source is saved in the path-list created
- */
- return;
+ return (FIB_ENTRY_SRC_FLAG_ADDED);
+ }
+}
+
+static fib_entry_src_flag_t
+fib_entry_source_removed (fib_entry_t *fib_entry,
+ fib_entry_flag_t old_flags)
+{
+ const fib_entry_src_t *bsrc;
+ fib_source_t best_source;
+
+ /*
+ * if all that is left are inherited sources, then burn them
+ */
+ fib_entry_src_burn_only_inherited(fib_entry);
+
+ bsrc = fib_entry_get_best_src_i(fib_entry);
+ best_source = fib_entry_src_get_source(bsrc);
+
+ if (FIB_SOURCE_MAX == best_source)
+ {
+ /*
+ * no more sources left. this entry is toast.
+ */
+ fib_entry = fib_entry_post_flag_update_actions(fib_entry, old_flags);
+ fib_entry_src_action_uninstall(fib_entry);
+
+ return (FIB_ENTRY_SRC_FLAG_NONE);
}
else
{
- /*
- * the new source is one this entry already has.
- * But the path-list was updated, which will contribute new forwarding,
- * so install it.
- */
- fib_entry_src_action_deactivate(fib_entry, source);
- fib_entry_src_action_activate(fib_entry, source);
+ fib_entry_src_action_activate(fib_entry, best_source);
}
- fib_entry_post_update_actions(fib_entry, source, bflags);
+ fib_entry_post_update_actions(fib_entry, best_source, old_flags);
+
+ /*
+ * still have sources
+ */
+ return (FIB_ENTRY_SRC_FLAG_ADDED);
}
/*
fib_source_t source,
const fib_route_path_t *rpath)
{
- const fib_entry_src_t *bsrc;
fib_entry_src_flag_t sflag;
fib_source_t best_source;
fib_entry_flag_t bflags;
fib_entry_t *fib_entry;
+ fib_entry_src_t *bsrc;
ASSERT(1 == vec_len(rpath));
* then we need to create a new one. else we are updating
* an existing.
*/
- if (source < best_source )
+ if (source < best_source)
{
/*
* Que! removing a path from a source that is better than the
else if (source > best_source )
{
/*
- * the source is not the best. nothing to do.
+ * the source is not the best. no need to update forwarding
*/
- return (FIB_ENTRY_SRC_FLAG_ADDED);
+ if (FIB_ENTRY_SRC_FLAG_ADDED & sflag)
+ {
+ /*
+ * the source being removed still has paths
+ */
+ return (FIB_ENTRY_SRC_FLAG_ADDED);
+ }
+ else
+ {
+ /*
+ * that was the last path from this source, check if those
+ * that remain are non-inherited
+ */
+ return (fib_entry_src_burn_only_inherited(fib_entry));
+ }
}
else
{
* the last path from the source was removed.
* fallback to lower source
*/
- bsrc = fib_entry_get_best_src_i(fib_entry);
- best_source = fib_entry_src_get_source(bsrc);
-
- if (FIB_SOURCE_INVALID == best_source) {
- /*
- * no more sources left. this entry is toast.
- */
- fib_entry = fib_entry_post_flag_update_actions(fib_entry,
- source,
- bflags);
- fib_entry_src_action_uninstall(fib_entry);
-
- return (FIB_ENTRY_SRC_FLAG_NONE);
- }
- else
- {
- fib_entry_src_action_activate(fib_entry, best_source);
- source = best_source;
- }
+ return (fib_entry_source_removed(fib_entry, bflags));
}
else
{
/*
* re-install the new forwarding information
*/
- fib_entry_src_action_deactivate(fib_entry, source);
- fib_entry_src_action_activate(fib_entry, source);
+ fib_entry_src_action_reactivate(fib_entry, source);
}
}
fib_entry_special_remove (fib_node_index_t fib_entry_index,
fib_source_t source)
{
- const fib_entry_src_t *bsrc;
fib_entry_src_flag_t sflag;
fib_source_t best_source;
fib_entry_flag_t bflags;
fib_entry_t *fib_entry;
+ fib_entry_src_t *bsrc;
fib_entry = fib_entry_get(fib_entry_index);
ASSERT(NULL != fib_entry);
best_source = fib_entry_src_get_source(bsrc);
bflags = fib_entry_src_get_flags(bsrc);
- sflag = fib_entry_src_action_remove(fib_entry, source);
+ sflag = fib_entry_src_action_remove_or_update_inherit(fib_entry, source);
/*
* if the path list for the source passed is invalid,
}
else if (source > best_source ) {
/*
- * the source is not the best. nothing to do.
+ * the source is not the best. no need to update forwarding
*/
- return (FIB_ENTRY_SRC_FLAG_ADDED);
+ if (FIB_ENTRY_SRC_FLAG_ADDED & sflag)
+ {
+ /*
+ * the source being removed still has paths
+ */
+ return (FIB_ENTRY_SRC_FLAG_ADDED);
+ }
+ else
+ {
+ /*
+ * that was the last path from this source, check if those
+ * that remain are non-inherited
+ */
+ if (FIB_ENTRY_SRC_FLAG_NONE == fib_entry_src_burn_only_inherited(fib_entry))
+ {
+ /*
+ * no more sources left. this entry is toast.
+ */
+ fib_entry = fib_entry_post_flag_update_actions(fib_entry, bflags);
+ fib_entry_src_action_uninstall(fib_entry);
+ return (FIB_ENTRY_SRC_FLAG_NONE);
+ }
+
+ /*
+ * reactivate the best source so the interposer gets restacked
+ */
+ fib_entry_src_action_reactivate(fib_entry, best_source);
+
+ return (FIB_ENTRY_SRC_FLAG_ADDED);
+ }
}
else
{
/*
* the source was removed. use the next best.
*/
- bsrc = fib_entry_get_best_src_i(fib_entry);
- best_source = fib_entry_src_get_source(bsrc);
-
- if (FIB_SOURCE_INVALID == best_source) {
- /*
- * no more sources left. this entry is toast.
- */
- fib_entry = fib_entry_post_flag_update_actions(fib_entry,
- source,
- bflags);
- fib_entry_src_action_uninstall(fib_entry);
-
- return (FIB_ENTRY_SRC_FLAG_NONE);
- }
- else
- {
- fib_entry_src_action_activate(fib_entry, best_source);
- source = best_source;
- }
+ return (fib_entry_source_removed(fib_entry, bflags));
}
else
{
return (FIB_ENTRY_SRC_FLAG_ADDED);
}
+/**
+ * fib_entry_inherit
+ *
+ * If the source on the cover is inherting then push this source
+ * down to the covered.
+ */
+void
+fib_entry_inherit (fib_node_index_t cover,
+ fib_node_index_t covered)
+{
+ fib_entry_src_inherit(fib_entry_get(cover),
+ fib_entry_get(covered));
+}
+
/**
* fib_entry_delete
*
fib_entry_flag_t flags,
const fib_route_path_t *paths)
{
- const fib_entry_src_t *bsrc;
fib_source_t best_source;
fib_entry_flag_t bflags;
fib_entry_t *fib_entry;
+ fib_entry_src_t *bsrc;
fib_entry = fib_entry_get(fib_entry_index);
ASSERT(NULL != fib_entry);
bsrc = fib_entry_get_best_src_i(fib_entry);
best_source = fib_entry_src_get_source(bsrc);
- bflags = fib_entry_src_get_flags(bsrc);
+ bflags = fib_entry_get_flags_i(fib_entry);
- fib_entry_src_action_path_swap(fib_entry,
- source,
- flags,
- paths);
- /*
- * handle possible realloc's by refetching the pointer
- */
- fib_entry = fib_entry_get(fib_entry_index);
+ fib_entry = fib_entry_src_action_path_swap(fib_entry,
+ source,
+ flags,
+ paths);
- /*
- * if the path list for the source passed is invalid,
- * then we need to create a new one. else we are updating
- * an existing.
- */
- if (source < best_source)
- {
- /*
- * we have a new winning source.
- */
- fib_entry_src_action_deactivate(fib_entry, best_source);
- fib_entry_src_action_activate(fib_entry, source);
- }
- else if (source > best_source) {
- /*
- * the new source loses. nothing to do here.
- * the data from the source is saved in the path-list created
- */
- return;
- }
- else
- {
- /*
- * the new source is one this entry already has.
- * But the path-list was updated, which will contribute new forwarding,
- * so install it.
- */
- fib_entry_src_action_deactivate(fib_entry, source);
- fib_entry_src_action_activate(fib_entry, source);
- }
-
- fib_entry_post_update_actions(fib_entry, source, bflags);
+ fib_entry_source_change_w_flags(fib_entry, best_source, bflags, source);
}
.install = !0,
.bw_reason = FIB_NODE_BW_REASON_FLAG_NONE,
};
- fib_source_t source, best_source;
+ CLIB_UNUSED(fib_source_t source);
+ fib_source_t best_source;
fib_entry_flag_t bflags;
fib_entry_t *fib_entry;
fib_entry_src_t *esrc;
/*
* only the best source gets to set the back walk flags
*/
- res = fib_entry_src_action_cover_change(fib_entry, source);
+ res = fib_entry_src_action_cover_change(fib_entry, esrc);
bflags = fib_entry_src_get_flags(esrc);
best_source = fib_entry_src_get_source(esrc);
}
else
{
- fib_entry_src_action_cover_change(fib_entry, source);
+ fib_entry_src_action_cover_change(fib_entry, esrc);
}
index++;
}));
.install = !0,
.bw_reason = FIB_NODE_BW_REASON_FLAG_NONE,
};
- fib_source_t source, best_source;
+ CLIB_UNUSED(fib_source_t source);
+ fib_source_t best_source;
fib_entry_flag_t bflags;
fib_entry_t *fib_entry;
fib_entry_src_t *esrc;
/*
* only the best source gets to set the back walk flags
*/
- res = fib_entry_src_action_cover_update(fib_entry, source);
+ res = fib_entry_src_action_cover_update(fib_entry, esrc);
bflags = fib_entry_src_get_flags(esrc);
best_source = fib_entry_src_get_source(esrc);
}
else
{
- fib_entry_src_action_cover_update(fib_entry, source);
+ fib_entry_src_action_cover_update(fib_entry, esrc);
}
index++;
}));
fib_source_t
fib_entry_get_best_source (fib_node_index_t entry_index)
{
- const fib_entry_src_t *bsrc;
fib_entry_t *fib_entry;
+ fib_entry_src_t *bsrc;
fib_entry = fib_entry_get(entry_index);
Code Review / vpp.git / blobdiff