diff options
Diffstat (limited to 'src/vnet/feature/registration.c')
| -rw-r--r-- | src/vnet/feature/registration.c | 50 |
1 files changed, 48 insertions, 2 deletions
diff --git a/src/vnet/feature/registration.c b/src/vnet/feature/registration.c index 61024ca08cf..fb10fbbe0db 100644 --- a/src/vnet/feature/registration.c +++ b/src/vnet/feature/registration.c @@ -107,6 +107,9 @@ comma_split (u8 * s, u8 ** a, u8 ** b) * @param first_reg first element in * [an __attribute__((constructor)) function built, or * otherwise created] singly-linked list of feature registrations + * @param first_const first element in + * [an __attribute__((constructor)) function built, or + * otherwise created] singly-linked list of bulk order constraints * @param [out] in_feature_nodes returned vector of * topologically-sorted feature node names, for use in * show commands @@ -120,12 +123,14 @@ vnet_feature_arc_init (vlib_main_t * vm, char **feature_start_nodes, int num_feature_start_nodes, vnet_feature_registration_t * first_reg, - char ***in_feature_nodes) + vnet_feature_constraint_registration_t * + first_const_set, char ***in_feature_nodes) { uword *index_by_name; uword *reg_by_index; u8 **node_names = 0; u8 *node_name; + char *prev_name; char **these_constraints; char *this_constraint_c; u8 **constraints = 0; @@ -139,6 +144,7 @@ vnet_feature_arc_init (vlib_main_t * vm, int n_features; u32 *result = 0; vnet_feature_registration_t *this_reg = 0; + vnet_feature_constraint_registration_t *this_const_set = 0; char **feature_nodes = 0; hash_pair_t *hp; u8 **keys_to_delete = 0; @@ -183,6 +189,44 @@ vnet_feature_arc_init (vlib_main_t * vm, this_reg = this_reg->next_in_arc; } + /* pass 2, collect bulk "a then b then c then d" constraints */ + this_const_set = first_const_set; + while (this_const_set) + { + these_constraints = this_const_set->node_names; + + prev_name = 0; + /* Across the list of constraints */ + while (these_constraints && these_constraints[0]) + { + this_constraint_c = these_constraints[0]; + p = hash_get_mem (index_by_name, this_constraint_c); + if (p == 0) + { + clib_warning + ("bulk constraint feature node '%s' not found for arc '%s'", + this_constraint_c); + these_constraints++; + continue; + } + + if (prev_name == 0) + { + prev_name = this_constraint_c; + these_constraints++; + continue; + } + + constraint_tuple = format (0, "%s,%s%c", prev_name, + this_constraint_c, 0); + vec_add1 (constraints, constraint_tuple); + prev_name = this_constraint_c; + these_constraints++; + } + + this_const_set = this_const_set->next_in_arc; + } + n_features = vec_len (node_names); orig = clib_ptclosure_alloc (n_features); @@ -252,7 +296,9 @@ again: /* see if we got a partial order... */ if (vec_len (result) != n_features) - return clib_error_return (0, "%d feature_init_cast no partial order!"); + return clib_error_return + (0, "Arc '%s': failed to find a suitable feature order!", + first_reg->arc_name); /* * We win. |