From 6570a746680fb9f99718183157909acfd2c85cad Mon Sep 17 00:00:00 2001 From: Alberto Compagno Date: Fri, 22 Feb 2019 10:06:58 +0100 Subject: [HICN-74] Data with lifetime 0 are never cached in the CS. When such data is received the PIT entry is removed. If the data comes from the push node the data is dropped. Change-Id: I8780e16cca30ad8298f1a494f1138f8b35ae0fab Signed-off-by: Alberto Compagno --- hicn-plugin/src/cli.c | 36 ++++++++++-------- hicn-plugin/src/data_fwd_node.c | 80 ++++++++++++++++++++++++++++++---------- hicn-plugin/src/data_push_node.c | 28 +++++++++----- hicn-plugin/src/params.h | 2 +- 4 files changed, 100 insertions(+), 46 deletions(-) (limited to 'hicn-plugin') diff --git a/hicn-plugin/src/cli.c b/hicn-plugin/src/cli.c index c8c0be4ff..b03d6a29c 100644 --- a/hicn-plugin/src/cli.c +++ b/hicn-plugin/src/cli.c @@ -86,9 +86,12 @@ hicn_cli_node_ctl_start_set_command_fn (vlib_main_t * vm, ret = hicn_infra_plugin_enable_disable (1 /* enable */ , node_ctl_params.pit_max_size, - node_ctl_params.pit_dflt_lifetime_sec, - node_ctl_params.pit_min_lifetime_sec, - node_ctl_params.pit_max_lifetime_sec, + node_ctl_params. + pit_dflt_lifetime_sec, + node_ctl_params. + pit_min_lifetime_sec, + node_ctl_params. + pit_max_lifetime_sec, node_ctl_params.cs_max_size, node_ctl_params.cs_reserved_app); @@ -131,9 +134,12 @@ hicn_cli_node_ctl_stop_set_command_fn (vlib_main_t * vm, } ret = hicn_infra_plugin_enable_disable (0 /* !enable */ , node_ctl_params.pit_max_size, - node_ctl_params.pit_dflt_lifetime_sec, - node_ctl_params.pit_min_lifetime_sec, - node_ctl_params.pit_max_lifetime_sec, + node_ctl_params. + pit_dflt_lifetime_sec, + node_ctl_params. + pit_min_lifetime_sec, + node_ctl_params. + pit_max_lifetime_sec, node_ctl_params.cs_max_size, node_ctl_params.cs_reserved_app); @@ -877,8 +883,8 @@ hicn_cli_pgen_client_set_command_fn (vlib_main_t * vm, { /* Add data node to the vpp graph */ u32 next_hit_node = vlib_node_add_next (vm, - hicn_punt_glb. - hicn_node_info.ip4_inacl_node_index, + hicn_punt_glb.hicn_node_info. + ip4_inacl_node_index, hicn_pg_data_node.index); /* Add pgen_client node to the vpp graph */ @@ -915,8 +921,8 @@ hicn_cli_pgen_client_set_command_fn (vlib_main_t * vm, { /* Add node to the vpp graph */ u32 next_hit_node = vlib_node_add_next (vm, - hicn_punt_glb.hicn_node_info. - ip6_inacl_node_index, + hicn_punt_glb. + hicn_node_info.ip6_inacl_node_index, hicn_pg_data_node.index); /* Add pgen_client node to the vpp graph */ @@ -1086,8 +1092,8 @@ hicn_cli_pgen_server_set_command_fn (vlib_main_t * vm, { /* Add node to the vpp graph */ u32 next_hit_node = vlib_node_add_next (vm, - hicn_punt_glb. - hicn_node_info.ip4_inacl_node_index, + hicn_punt_glb.hicn_node_info. + ip4_inacl_node_index, hicn_pg_server_node.index); /* Create the punting table if it does not exist */ @@ -1113,8 +1119,8 @@ hicn_cli_pgen_server_set_command_fn (vlib_main_t * vm, { /* Add node to the vpp graph */ u32 next_hit_node = vlib_node_add_next (vm, - hicn_punt_glb.hicn_node_info. - ip6_inacl_node_index, + hicn_punt_glb. + hicn_node_info.ip6_inacl_node_index, hicn_pg_server_node.index); /* Create the punting table if it does not exist */ @@ -1210,7 +1216,7 @@ VLIB_CLI_COMMAND(hicn_cli_show_command, static)= VLIB_CLI_COMMAND(hicn_cli_punting_command, static)= { .path = "hicn punting", - .short_help = "hicn punting {add|delete} prefix intfc type ", + .short_help = "hicn punting {add|delete} prefix intfc {type ip | type src_port dst_port }", .function = hicn_cli_punting_command_fn, }; diff --git a/hicn-plugin/src/data_fwd_node.c b/hicn-plugin/src/data_fwd_node.c index b25c9e0ac..19181ac03 100644 --- a/hicn-plugin/src/data_fwd_node.c +++ b/hicn-plugin/src/data_fwd_node.c @@ -50,7 +50,7 @@ clone_data_to_cs (vlib_main_t * vm, hicn_pit_cs_t * pitcs, hicn_hash_node_t * nodep, vlib_buffer_t * b0, hicn_hash_entry_t * hash_entry, u64 name_hash, hicn_buffer_t * hicnb, const hicn_dpo_vft_t * dpo_vft, - dpo_id_t * hicn_dpo_id); + dpo_id_t * hicn_dpo_id, hicn_lifetime_t dmsg_lifetime); /* packet trace format function */ @@ -221,24 +221,69 @@ hicn_data_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node, pitp->u.pit.pe_txnh); #if HICN_FEATURE_CS - /* - * Clone data packet in the content store and - * convert the PIT entry into a CS entry - */ - clone_data_to_cs (vm, pitcs, pitp, hicn0, tnow, node0, - b0, hash_entry0, hicnb0->name_hash, hicnb0, - dpo_vft0, &hicn_dpo_id0); + hicn_lifetime_t dmsg_lifetime; - hicn_pcs_remove_lock (pitcs, &pitp, &node0, vm, - hash_entry0, NULL, NULL); + hicn_type_t type = hicnb0->type; + hicn_ops_vft[type.l1]->get_lifetime (type, &hicn0->protocol, + &dmsg_lifetime); + + if (dmsg_lifetime) + { + /* + * Clone data packet in the content store and + * convert the PIT entry into a CS entry + */ + clone_data_to_cs (vm, pitcs, pitp, hicn0, tnow, node0, + b0, hash_entry0, hicnb0->name_hash, + hicnb0, dpo_vft0, &hicn_dpo_id0, + dmsg_lifetime); + + hicn_pcs_remove_lock (pitcs, &pitp, &node0, vm, + hash_entry0, NULL, NULL); + } + else + { + /* + * If the packet is copied and not cloned, we need to free the vlib_buffer + */ + if (hicnb0->flags & HICN_BUFFER_FLAGS_PKT_LESS_TWO_CL) + { + vlib_buffer_free_one (vm, bi0); + } + else + { + /* + * Remove one reference as the buffer is no + * longer in any frame. The vlib_buffer will be freed when + * all its cloned vlib_buffer will be freed. + */ + b0->n_add_refs--; + } + + /* Delete the PIT entry */ + hicn_pcs_pit_delete (pitcs, &pitp, &node0, vm, + hash_entry0, dpo_vft0, &hicn_dpo_id0); + } #else ASSERT (pitp == hicn_pit_get_data (node0)); /* - * Remove one reference as the buffer is no - * longer in any frame + * If the packet is copied and not cloned, we need to free the vlib_buffer */ - b0->n_add_refs--; - /* If not enabled, delete the PIT entry */ + if (hicnb0->flags & HICN_BUFFER_FLAGS_PKT_LESS_TWO_CL) + { + vlib_buffer_free_one (vm, bi0); + } + else + { + /* + * Remove one reference as the buffer is no + * longer in any frame. The vlib_buffer will be freed when + * all its cloned vlib_buffer will be freed. + */ + b0->n_add_refs--; + } + + /* Delete the PIT entry */ hicn_pcs_pit_delete (pitcs, &pitp, &node0, vm, hash_entry0, dpo_vft0, &hicn_dpo_id0); #endif @@ -490,9 +535,8 @@ clone_data_to_cs (vlib_main_t * vm, hicn_pit_cs_t * pitcs, hicn_hash_node_t * nodep, vlib_buffer_t * b0, hicn_hash_entry_t * hash_entry, u64 name_hash, hicn_buffer_t * hicnb, const hicn_dpo_vft_t * dpo_vft, - dpo_id_t * hicn_dpo_id) + dpo_id_t * hicn_dpo_id, hicn_lifetime_t dmsg_lifetime) { - hicn_lifetime_t dmsg_lifetime; /* * At this point we think we're safe to proceed. Store the CS buf in * the PIT/CS hashtable entry @@ -510,10 +554,6 @@ clone_data_to_cs (vlib_main_t * vm, hicn_pit_cs_t * pitcs, pitp->shared.create_time = tnow; - hicn_type_t type = hicnb0->type; - hicn_ops_vft[type.l1]->get_lifetime (type, &hicn0->protocol, - &dmsg_lifetime); - if (dmsg_lifetime < HICN_PARAM_CS_LIFETIME_MIN || dmsg_lifetime > HICN_PARAM_CS_LIFETIME_MAX) { diff --git a/hicn-plugin/src/data_push_node.c b/hicn-plugin/src/data_push_node.c index d530173bc..b955a765d 100644 --- a/hicn-plugin/src/data_push_node.c +++ b/hicn-plugin/src/data_push_node.c @@ -97,7 +97,7 @@ hicn_new_data (vlib_main_t * vm, hicn_data_push_runtime_t * rt, u32 bi0 = vlib_get_buffer_index (vm, b0); hicn_hash_node_t *nodep; hicn_pcs_entry_t *pitp; - hicn_header_t *hicn0; + hicn_header_t *hicn0 = vlib_buffer_get_current (b0); hicn_buffer_t *hicnb0 = hicn_get_buffer (b0); u32 node_id0 = 0; u8 dpo_ctx_id0 = ~0; @@ -108,6 +108,17 @@ hicn_new_data (vlib_main_t * vm, hicn_data_push_runtime_t * rt, u8 bucket_is_overflow = 0; hicn_lifetime_t dmsg_lifetime; + hicnb0 = hicn_get_buffer (b0); + hicn_type_t type = hicnb0->type; + hicn_ops_vft[type.l1]->get_lifetime (type, &hicn0->protocol, + &dmsg_lifetime); + + if (!dmsg_lifetime) + { + vlib_buffer_free_one (vm, bi0); + return HICN_ERROR_NONE; + } + /* Create PIT node and init PIT entry */ nodep = hicn_hashtb_alloc_node (rt->pitcs->pcs_table); if (PREDICT_FALSE (nodep == NULL)) @@ -121,12 +132,6 @@ hicn_new_data (vlib_main_t * vm, hicn_data_push_runtime_t * rt, hicn_pit_init_data (pitp); pitp->shared.create_time = tnow; - hicn0 = vlib_buffer_get_current (b0); - - hicn_type_t type = hicnb0->type; - hicn_ops_vft[type.l1]->get_lifetime (type, &hicn0->protocol, - &dmsg_lifetime); - if (dmsg_lifetime < HICN_PARAM_CS_LIFETIME_MIN || dmsg_lifetime > HICN_PARAM_CS_LIFETIME_MAX) { @@ -238,10 +243,13 @@ hicn_data_push_fn (vlib_main_t * vm, ret0 = hicn_data_parse_pkt (b0, &name, &namelen, &hicn0, &isv6); nameptr = (u8 *) (&name); + if (PREDICT_TRUE (ret0 == HICN_ERROR_NONE)) - hicn_new_data (vm, rt, b0, &to_forward, &n_to_forward, tnow, nameptr, - namelen, isv6); - stats.pkts_data_count++; + { + hicn_new_data (vm, rt, b0, &to_forward, &n_to_forward, tnow, + nameptr, namelen, isv6); + stats.pkts_data_count++; + } } to_forward -= n_to_forward; diff --git a/hicn-plugin/src/params.h b/hicn-plugin/src/params.h index 5adafd7e6..f3af714ec 100644 --- a/hicn-plugin/src/params.h +++ b/hicn-plugin/src/params.h @@ -80,7 +80,7 @@ STATIC_ASSERT ((HICN_PARAM_PIT_ENTRY_PHOPS_MAX <= HICN_PARAM_FACES_MAX), #define HICN_PARAM_CS_LRU_DEFAULT (16 * 1024) /* CS lifetime defines, in mseconds, integer type */ -#define HICN_PARAM_CS_LIFETIME_MIN 100 +#define HICN_PARAM_CS_LIFETIME_MIN 0 #define HICN_PARAM_CS_LIFETIME_DFLT (5 * 60 * 1000) // 300 seconds #define HICN_PARAM_CS_LIFETIME_MAX (24 * 3600 * 1000) //24 hours... -- cgit 1.2.3-korg