vpp - Vector Packet Processing

Age	Commit message (Expand)	Author	Files	Lines
2018-03-15	use system provided ccache links	Damjan Marion	1	-0/+1

/* * Copyright (c) 2018 Cisco and/or its affiliates. * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at: * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include <vlib/vlib.h> #include <vnet/dpo/drop_dpo.h> #include <vnet/fib/ip6_fib.h> #include <vnet/ip/ip6_ll_table.h> /** * There's only one IP6 link local table */ static ip6_ll_table_t ip6_ll_table; u32 ip6_ll_fib_get (u32 sw_if_index) { ASSERT (vec_len (ip6_ll_table.ilt_fibs) > sw_if_index); return (ip6_ll_table.ilt_fibs[sw_if_index]); } fib_node_index_t ip6_ll_table_lookup (const ip6_ll_prefix_t * prefix) { return (ip6_fib_table_lookup (ip6_ll_fib_get (prefix->ilp_sw_if_index), &prefix->ilp_addr, 128)); } fib_node_index_t ip6_ll_table_lookup_exact_match (const ip6_ll_prefix_t * prefix) { return (ip6_fib_table_lookup_exact_match (ip6_ll_fib_get (prefix->ilp_sw_if_index), &prefix->ilp_addr, 128)); } static void ip6_ll_fib_create (u32 sw_if_index) { vnet_main_t *vnm = vnet_get_main (); u8 *desc; desc = format (NULL, "IP6-link-local:%U", format_vnet_sw_interface_name, vnm, vnet_get_sw_interface (vnm, sw_if_index)); ip6_ll_table.ilt_fibs[sw_if_index] = ip6_fib_table_create_and_lock (FIB_SOURCE_IP6_ND, FIB_TABLE_FLAG_IP6_LL, desc); /* * leave the default route as a drop, but fix fe::/10 to be a glean * via the interface. */ /* *INDENT-OFF* */ fib_prefix_t pfx = { .fp_proto = FIB_PROTOCOL_IP6, .fp_len = 10, .fp_addr = { .ip6 = { .as_u8 = { [0] = 0xFE, [1] = 0x80, } }, } }; fib_table_entry_update_one_path( ip6_ll_table.ilt_fibs[sw_if_index], &pfx, FIB_SOURCE_SPECIAL, (FIB_ENTRY_FLAG_ATTACHED | FIB_ENTRY_FLAG_NO_ATTACHED_EXPORT), DPO_PROTO_IP6, NULL, sw_if_index, ~0, 1, NULL, FIB_ROUTE_PATH_FLAG_NONE); /* *INDENT-ON* */ } static void ip6_ll_prefix_to_fib (const ip6_ll_prefix_t * ilp, fib_prefix_t * fp) { fp->fp_proto = FIB_PROTOCOL_IP6; fp->fp_len = 128; fp->fp_addr.ip6 = ilp->ilp_addr; fp->___fp___pad = 0; } fib_node_index_t ip6_ll_table_entry_update (const ip6_ll_prefix_t * ilp, fib_route_path_flags_t flags) { fib_node_index_t ip6_ll_entry_index; fib_route_path_t *rpaths, rpath = { .frp_flags = flags, .frp_sw_if_index = ilp->ilp_sw_if_index, .frp_proto = DPO_PROTO_IP6, }; fib_prefix_t fp; vec_validate (ip6_ll_table.ilt_fibs, ilp->ilp_sw_if_index); if (0 == ip6_ll_fib_get (ilp->ilp_sw_if_index)) { ip6_ll_fib_create (ilp->ilp_sw_if_index); } rpaths = NULL; vec_add1 (rpaths, rpath); ip6_ll_prefix_to_fib (ilp, &fp); ip6_ll_entry_index = fib_table_entry_update (ip6_ll_fib_get (ilp->ilp_sw_if_index), &fp, FIB_SOURCE_IP6_ND, (flags & FIB_ROUTE_PATH_LOCAL ? FIB_ENTRY_FLAG_LOCAL : FIB_ENTRY_FLAG_NONE), rpaths); vec_free (rpaths); return (ip6_ll_entry_index); } void ip6_ll_table_entry_delete (const ip6_ll_prefix_t * ilp) { fib_node_index_t ip6_ll_entry_index; u32 fib_index; ip6_ll_entry_index = ip6_ll_table_lookup_exact_match (ilp); if (FIB_NODE_INDEX_INVALID != ip6_ll_entry_index) fib_table_entry_delete_index (ip6_ll_entry_index, FIB_SOURCE_IP6_ND); /* * if there are no ND sourced prefixes left, then we can clean up this FIB */ fib_index = ip6_ll_fib_get (ilp->ilp_sw_if_index); if (0 == fib_table_get_num_entries (fib_index, FIB_PROTOCOL_IP6, FIB_SOURCE_IP6_ND)) { fib_table_unlock (fib_index, FIB_PROTOCOL_IP6, FIB_SOURCE_IP6_ND); ip6_ll_table.ilt_fibs[ilp->ilp_sw_if_index] = 0; } } static void ip6_ll_table_show_one (vlib_main_t * vm, ip6_ll_prefix_t * ilp, int detail) { vlib_cli_output (vm, "%U", format_fib_entry, ip6_ll_table_lookup (ilp), (detail ? FIB_ENTRY_FORMAT_DETAIL2 : FIB_ENTRY_FORMAT_DETAIL)); } typedef struct ip6_ll_show_ctx_t_ { fib_node_index_t *entries; } ip6_ll_show_ctx_t; static fib_table_walk_rc_t ip6_ll_table_show_walk (fib_node_index_t fib_entry_index, void *arg) { ip6_ll_show_ctx_t *ctx = arg; vec_add1 (ctx->entries, fib_entry_index); return (FIB_TABLE_WALK_CONTINUE); } static void ip6_ll_table_show_all (vlib_main_t * vm, u32 fib_index) { fib_node_index_t *fib_entry_index; ip6_ll_show_ctx_t ctx = { .entries = NULL, }; fib_table_walk (fib_index, FIB_PROTOCOL_IP6, ip6_ll_table_show_walk, &ctx); vec_sort_with_function (ctx.entries, fib_entry_cmp_for_sort); vec_foreach (fib_entry_index, ctx.entries) { vlib_cli_output (vm, "%U", format_fib_entry, *fib_entry_index, FIB_ENTRY_FORMAT_BRIEF); } vec_free (ctx.entries); } typedef struct { u32 fib_index; u64 count_by_prefix_length[129]; } count_routes_in_fib_at_prefix_length_arg_t; static int count_routes_in_fib_at_prefix_length (clib_bihash_kv_24_8_t * kvp, void *arg) { count_routes_in_fib_at_prefix_length_arg_t *ap = arg; int mask_width; if ((kvp->key[2] >> 32) != ap->fib_index) return (BIHASH_WALK_CONTINUE); mask_width = kvp->key[2] & 0xFF; ap->count_by_prefix_length[mask_width]++; return (BIHASH_WALK_CONTINUE); } static clib_error_t * ip6_ll_show_fib (vlib_main_t * vm, unformat_input_t * input, vlib_cli_command_t * cmd) { count_routes_in_fib_at_prefix_length_arg_t _ca, *ca = &_ca; ip6_main_t *im6 = &ip6_main; fib_table_t *fib_table; int verbose, matching; ip6_address_t matching_address; u32 mask_len = 128; u32 sw_if_index = ~0; int detail = 0; vnet_main_t *vnm = vnet_get_main (); u32 fib_index; verbose = 1; matching = 0; while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) { if (unformat (input, "brief") || unformat (input, "summary") || unformat (input, "sum")) verbose = 0; else if (unformat (input, "detail") || unformat (input, "det")) detail = 1; else if (unformat (input, "%U/%d", unformat_ip6_address, &matching_address, &mask_len)) matching = 1; else if (unformat (input, "%U", unformat_ip6_address, &matching_address)) matching = 1; else if (unformat (input, "%U", unformat_vnet_sw_interface, vnm, &sw_if_index)) ; else break; } vec_foreach_index (sw_if_index, ip6_ll_table.ilt_fibs) { fib_source_t source; u8 *s = NULL; fib_index = ip6_ll_table.ilt_fibs[sw_if_index]; if (0 == fib_index) continue; fib_table = fib_table_get (fib_index, FIB_PROTOCOL_IP6); if (!(fib_table->ft_flags & FIB_TABLE_FLAG_IP6_LL)) continue; s = format (s, "%U, fib_index:%d, locks:[", format_fib_table_name, fib_index, FIB_PROTOCOL_IP6, fib_index); vec_foreach_index (source, fib_table->ft_locks) { if (0 != fib_table->ft_locks[source]) { s = format (s, "%U:%d, ", format_fib_source, source, fib_table->ft_locks[source]); } } s = format (s, "]"); vlib_cli_output (vm, "%v", s); vec_free (s); /* Show summary? */ if (!verbose) { clib_bihash_24_8_t *h = &im6->ip6_table[IP6_FIB_TABLE_NON_FWDING].ip6_hash; int len; vlib_cli_output (vm, "%=20s%=16s", "Prefix length", "Count"); clib_memset (ca, 0, sizeof (*ca)); ca->fib_index = fib_index; clib_bihash_foreach_key_value_pair_24_8 (h, count_routes_in_fib_at_prefix_length, ca); for (len = 128; len >= 0; len--) { if (ca->count_by_prefix_length[len]) vlib_cli_output (vm, "%=20d%=16lld", len, ca->count_by_prefix_length[len]); } continue; } if (!matching) { ip6_ll_table_show_all (vm, fib_index); } else { if (~0 == sw_if_index) { vlib_cli_output (vm, "specify the interface"); } else { ip6_ll_prefix_t ilp = { .ilp_addr = matching_address, .ilp_sw_if_index = sw_if_index, }; ip6_ll_table_show_one (vm, &ilp, detail); } } }; return 0; } /* *INDENT-OFF* */ VLIB_CLI_COMMAND (ip6_show_fib_command, static) = { .path = "show ip6-ll", .short_help = "show ip6-ll [summary] [interface] [<ip6-addr>[/<width>]] [detail]", .function = ip6_ll_show_fib, }; /* *INDENT-ON* */ static clib_error_t * ip6_ll_module_init (vlib_main_t * vm) { clib_error_t *error; error = vlib_call_init_function (vm, ip6_lookup_init); return (error); } VLIB_INIT_FUNCTION (ip6_ll_module_init); /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */