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296 lines
7.8 KiB
C
296 lines
7.8 KiB
C
/*
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* SRv6 definitions
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* Copyright (C) 2020 Hiroki Shirokura, LINE Corporation
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; see the file COPYING; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "zebra.h"
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#include "srv6.h"
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#include "log.h"
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DEFINE_QOBJ_TYPE(srv6_locator);
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DEFINE_MTYPE_STATIC(LIB, SRV6_LOCATOR, "SRV6 locator");
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DEFINE_MTYPE_STATIC(LIB, SRV6_LOCATOR_CHUNK, "SRV6 locator chunk");
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const char *seg6local_action2str(uint32_t action)
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{
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switch (action) {
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case ZEBRA_SEG6_LOCAL_ACTION_END:
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return "End";
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case ZEBRA_SEG6_LOCAL_ACTION_END_X:
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return "End.X";
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case ZEBRA_SEG6_LOCAL_ACTION_END_T:
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return "End.T";
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case ZEBRA_SEG6_LOCAL_ACTION_END_DX2:
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return "End.DX2";
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case ZEBRA_SEG6_LOCAL_ACTION_END_DX6:
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return "End.DX6";
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case ZEBRA_SEG6_LOCAL_ACTION_END_DX4:
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return "End.DX4";
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case ZEBRA_SEG6_LOCAL_ACTION_END_DT6:
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return "End.DT6";
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case ZEBRA_SEG6_LOCAL_ACTION_END_DT4:
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return "End.DT4";
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case ZEBRA_SEG6_LOCAL_ACTION_END_B6:
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return "End.B6";
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case ZEBRA_SEG6_LOCAL_ACTION_END_B6_ENCAP:
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return "End.B6.Encap";
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case ZEBRA_SEG6_LOCAL_ACTION_END_BM:
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return "End.BM";
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case ZEBRA_SEG6_LOCAL_ACTION_END_S:
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return "End.S";
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case ZEBRA_SEG6_LOCAL_ACTION_END_AS:
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return "End.AS";
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case ZEBRA_SEG6_LOCAL_ACTION_END_AM:
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return "End.AM";
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case ZEBRA_SEG6_LOCAL_ACTION_UNSPEC:
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return "unspec";
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default:
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return "unknown";
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}
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}
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int snprintf_seg6_segs(char *str,
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size_t size, const struct seg6_segs *segs)
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{
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str[0] = '\0';
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for (size_t i = 0; i < segs->num_segs; i++) {
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char addr[INET6_ADDRSTRLEN];
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bool not_last = (i + 1) < segs->num_segs;
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inet_ntop(AF_INET6, &segs->segs[i], addr, sizeof(addr));
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strlcat(str, addr, size);
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strlcat(str, not_last ? "," : "", size);
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}
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return strlen(str);
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}
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const char *seg6local_context2str(char *str, size_t size,
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const struct seg6local_context *ctx,
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uint32_t action)
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{
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char b0[128];
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switch (action) {
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case ZEBRA_SEG6_LOCAL_ACTION_END:
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snprintf(str, size, "USP");
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return str;
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case ZEBRA_SEG6_LOCAL_ACTION_END_X:
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case ZEBRA_SEG6_LOCAL_ACTION_END_DX6:
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inet_ntop(AF_INET6, &ctx->nh6, b0, 128);
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snprintf(str, size, "nh6 %s", b0);
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return str;
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case ZEBRA_SEG6_LOCAL_ACTION_END_DX4:
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inet_ntop(AF_INET, &ctx->nh4, b0, 128);
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snprintf(str, size, "nh4 %s", b0);
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return str;
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case ZEBRA_SEG6_LOCAL_ACTION_END_T:
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case ZEBRA_SEG6_LOCAL_ACTION_END_DT6:
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case ZEBRA_SEG6_LOCAL_ACTION_END_DT4:
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snprintf(str, size, "table %u", ctx->table);
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return str;
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case ZEBRA_SEG6_LOCAL_ACTION_END_DX2:
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case ZEBRA_SEG6_LOCAL_ACTION_END_B6:
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case ZEBRA_SEG6_LOCAL_ACTION_END_B6_ENCAP:
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case ZEBRA_SEG6_LOCAL_ACTION_END_BM:
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case ZEBRA_SEG6_LOCAL_ACTION_END_S:
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case ZEBRA_SEG6_LOCAL_ACTION_END_AS:
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case ZEBRA_SEG6_LOCAL_ACTION_END_AM:
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case ZEBRA_SEG6_LOCAL_ACTION_UNSPEC:
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default:
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snprintf(str, size, "unknown(%s)", __func__);
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return str;
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}
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}
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struct srv6_locator *srv6_locator_alloc(const char *name)
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{
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struct srv6_locator *locator = NULL;
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locator = XCALLOC(MTYPE_SRV6_LOCATOR, sizeof(struct srv6_locator));
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strlcpy(locator->name, name, sizeof(locator->name));
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locator->chunks = list_new();
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locator->chunks->del = (void (*)(void *))srv6_locator_chunk_free;
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QOBJ_REG(locator, srv6_locator);
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return locator;
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}
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struct srv6_locator_chunk *srv6_locator_chunk_alloc(void)
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{
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struct srv6_locator_chunk *chunk = NULL;
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chunk = XCALLOC(MTYPE_SRV6_LOCATOR_CHUNK,
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sizeof(struct srv6_locator_chunk));
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return chunk;
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}
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void srv6_locator_free(struct srv6_locator *locator)
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{
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if (locator) {
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QOBJ_UNREG(locator);
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list_delete(&locator->chunks);
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XFREE(MTYPE_SRV6_LOCATOR, locator);
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}
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}
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void srv6_locator_chunk_free(struct srv6_locator_chunk *chunk)
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{
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XFREE(MTYPE_SRV6_LOCATOR_CHUNK, chunk);
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}
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json_object *srv6_locator_chunk_json(const struct srv6_locator_chunk *chunk)
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{
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json_object *jo_root = NULL;
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jo_root = json_object_new_object();
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json_object_string_addf(jo_root, "prefix", "%pFX", &chunk->prefix);
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json_object_string_add(jo_root, "proto",
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zebra_route_string(chunk->proto));
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return jo_root;
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}
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json_object *
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srv6_locator_chunk_detailed_json(const struct srv6_locator_chunk *chunk)
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{
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json_object *jo_root = NULL;
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jo_root = json_object_new_object();
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/* set prefix */
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json_object_string_addf(jo_root, "prefix", "%pFX", &chunk->prefix);
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/* set block_bits_length */
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json_object_int_add(jo_root, "blockBitsLength",
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chunk->block_bits_length);
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/* set node_bits_length */
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json_object_int_add(jo_root, "nodeBitsLength", chunk->node_bits_length);
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/* set function_bits_length */
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json_object_int_add(jo_root, "functionBitsLength",
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chunk->function_bits_length);
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/* set argument_bits_length */
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json_object_int_add(jo_root, "argumentBitsLength",
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chunk->argument_bits_length);
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/* set keep */
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json_object_int_add(jo_root, "keep", chunk->keep);
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/* set proto */
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json_object_string_add(jo_root, "proto",
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zebra_route_string(chunk->proto));
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/* set instance */
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json_object_int_add(jo_root, "instance", chunk->instance);
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/* set session_id */
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json_object_int_add(jo_root, "sessionId", chunk->session_id);
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return jo_root;
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}
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json_object *srv6_locator_json(const struct srv6_locator *loc)
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{
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struct listnode *node;
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struct srv6_locator_chunk *chunk;
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json_object *jo_root = NULL;
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json_object *jo_chunk = NULL;
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json_object *jo_chunks = NULL;
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jo_root = json_object_new_object();
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/* set name */
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json_object_string_add(jo_root, "name", loc->name);
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/* set prefix */
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json_object_string_addf(jo_root, "prefix", "%pFX", &loc->prefix);
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/* set function_bits_length */
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json_object_int_add(jo_root, "functionBitsLength",
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loc->function_bits_length);
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/* set status_up */
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json_object_boolean_add(jo_root, "statusUp",
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loc->status_up);
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/* set chunks */
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jo_chunks = json_object_new_array();
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json_object_object_add(jo_root, "chunks", jo_chunks);
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for (ALL_LIST_ELEMENTS_RO((struct list *)loc->chunks, node, chunk)) {
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jo_chunk = srv6_locator_chunk_json(chunk);
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json_object_array_add(jo_chunks, jo_chunk);
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}
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return jo_root;
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}
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json_object *srv6_locator_detailed_json(const struct srv6_locator *loc)
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{
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struct listnode *node;
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struct srv6_locator_chunk *chunk;
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json_object *jo_root = NULL;
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json_object *jo_chunk = NULL;
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json_object *jo_chunks = NULL;
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jo_root = json_object_new_object();
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/* set name */
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json_object_string_add(jo_root, "name", loc->name);
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/* set prefix */
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json_object_string_addf(jo_root, "prefix", "%pFX", &loc->prefix);
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/* set block_bits_length */
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json_object_int_add(jo_root, "blockBitsLength", loc->block_bits_length);
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/* set node_bits_length */
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json_object_int_add(jo_root, "nodeBitsLength", loc->node_bits_length);
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/* set function_bits_length */
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json_object_int_add(jo_root, "functionBitsLength",
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loc->function_bits_length);
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/* set argument_bits_length */
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json_object_int_add(jo_root, "argumentBitsLength",
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loc->argument_bits_length);
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/* set algonum */
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json_object_int_add(jo_root, "algoNum", loc->algonum);
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/* set status_up */
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json_object_boolean_add(jo_root, "statusUp", loc->status_up);
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/* set chunks */
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jo_chunks = json_object_new_array();
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json_object_object_add(jo_root, "chunks", jo_chunks);
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for (ALL_LIST_ELEMENTS_RO((struct list *)loc->chunks, node, chunk)) {
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jo_chunk = srv6_locator_chunk_detailed_json(chunk);
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json_object_array_add(jo_chunks, jo_chunk);
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}
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return jo_root;
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}
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