diff options
Diffstat (limited to 'hicn-plugin/src/interest_pcslookup_node.c')
| -rw-r--r-- | hicn-plugin/src/interest_pcslookup_node.c | 53 |
1 files changed, 52 insertions, 1 deletions
diff --git a/hicn-plugin/src/interest_pcslookup_node.c b/hicn-plugin/src/interest_pcslookup_node.c index e3668c565..a0b2ee3f0 100644 --- a/hicn-plugin/src/interest_pcslookup_node.c +++ b/hicn-plugin/src/interest_pcslookup_node.c @@ -47,6 +47,20 @@ static char *hicn_interest_pcslookup_error_strings[] = { vlib_node_registration_t hicn_interest_pcslookup_node; +always_inline void +drop_packet (vlib_main_t *vm, u32 bi0, u32 *n_left_to_next, u32 *next0, + u32 **to_next, u32 *next_index, vlib_node_runtime_t *node) +{ + *next0 = HICN_INTEREST_PCSLOOKUP_NEXT_ERROR_DROP; + + (*to_next)[0] = bi0; + *to_next += 1; + *n_left_to_next -= 1; + + vlib_validate_buffer_enqueue_x1 (vm, node, *next_index, *to_next, + *n_left_to_next, bi0, *next0); +} + /* * ICN forwarder node for interests. */ @@ -64,6 +78,8 @@ hicn_interest_pcslookup_node_inline (vlib_main_t *vm, u32 bi0; u32 next0 = HICN_INTEREST_PCSLOOKUP_NEXT_ERROR_DROP; hicn_pcs_entry_t *pcs_entry = NULL; + f64 tnow; + hicn_buffer_t *hicnb0; rt = vlib_node_get_runtime_data (vm, hicn_interest_pcslookup_node.index); @@ -75,6 +91,8 @@ hicn_interest_pcslookup_node_inline (vlib_main_t *vm, n_left_from = frame->n_vectors; next_index = node->cached_next_index; + tnow = vlib_time_now (vm); + while (n_left_from > 0) { u32 n_left_to_next; @@ -105,9 +123,11 @@ hicn_interest_pcslookup_node_inline (vlib_main_t *vm, // Update stats stats.pkts_processed++; + hicnb0 = hicn_get_buffer (b0); + // Check if the interest is in the PCS already hicn_name_t name; - hicn_packet_get_name (&hicn_get_buffer (b0)->pkbuf, &name); + hicn_packet_get_name (&hicnb0->pkbuf, &name); ret = hicn_pcs_lookup_one (rt->pitcs, &name, &pcs_entry); if (ret == HICN_ERROR_NONE) @@ -124,7 +144,38 @@ hicn_interest_pcslookup_node_inline (vlib_main_t *vm, if (PREDICT_FALSE (ret != HICN_ERROR_NONE)) next0 = HICN_INTEREST_PCSLOOKUP_NEXT_ERROR_DROP; } + else + { + // No entry in PCS. Let's create one now + pcs_entry = hicn_pcs_entry_pit_get ( + rt->pitcs, tnow, hicn_buffer_get_lifetime (b0)); + + ret = hicn_pcs_pit_insert (rt->pitcs, pcs_entry, &name); + + if (PREDICT_FALSE (ret != HICN_ERROR_NONE)) + { + next0 = HICN_INTEREST_PCSLOOKUP_NEXT_ERROR_DROP; + goto end; + } + + // Store internal state + ret = hicn_store_internal_state ( + b0, hicn_pcs_entry_get_index (rt->pitcs, pcs_entry), + vnet_buffer (b0)->ip.adj_index[VLIB_TX]); + + if (PREDICT_FALSE (ret != HICN_ERROR_NONE)) + { + hicn_pcs_entry_remove_lock (rt->pitcs, pcs_entry); + drop_packet (vm, bi0, &n_left_from, &next0, &to_next, + &next_index, node); + continue; + } + + // Add face + hicn_pcs_entry_pit_add_face (pcs_entry, hicnb0->face_id); + } + end: stats.pkts_interest_count++; // Interest manifest? |