[mirror_frr.git] / lib / srv6.c

/*
 * SRv6 definitions
 * Copyright (C) 2020  Hiroki Shirokura, LINE Corporation
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the Free
 * Software Foundation; either version 2 of the License, or (at your option)
 * any later version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; see the file COPYING; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
 */

#include "zebra.h"

#include "srv6.h"
#include "log.h"

DEFINE_QOBJ_TYPE(srv6_locator);
DEFINE_MTYPE_STATIC(LIB, SRV6_LOCATOR, "SRV6 locator");
DEFINE_MTYPE_STATIC(LIB, SRV6_LOCATOR_CHUNK, "SRV6 locator chunk");

const char *seg6local_action2str(uint32_t action)
{
	switch (action) {
	case ZEBRA_SEG6_LOCAL_ACTION_END:
		return "End";
	case ZEBRA_SEG6_LOCAL_ACTION_END_X:
		return "End.X";
	case ZEBRA_SEG6_LOCAL_ACTION_END_T:
		return "End.T";
	case ZEBRA_SEG6_LOCAL_ACTION_END_DX2:
		return "End.DX2";
	case ZEBRA_SEG6_LOCAL_ACTION_END_DX6:
		return "End.DX6";
	case ZEBRA_SEG6_LOCAL_ACTION_END_DX4:
		return "End.DX4";
	case ZEBRA_SEG6_LOCAL_ACTION_END_DT6:
		return "End.DT6";
	case ZEBRA_SEG6_LOCAL_ACTION_END_DT4:
		return "End.DT4";
	case ZEBRA_SEG6_LOCAL_ACTION_END_B6:
		return "End.B6";
	case ZEBRA_SEG6_LOCAL_ACTION_END_B6_ENCAP:
		return "End.B6.Encap";
	case ZEBRA_SEG6_LOCAL_ACTION_END_BM:
		return "End.BM";
	case ZEBRA_SEG6_LOCAL_ACTION_END_S:
		return "End.S";
	case ZEBRA_SEG6_LOCAL_ACTION_END_AS:
		return "End.AS";
	case ZEBRA_SEG6_LOCAL_ACTION_END_AM:
		return "End.AM";
	case ZEBRA_SEG6_LOCAL_ACTION_UNSPEC:
		return "unspec";
	default:
		return "unknown";
	}
}

int snprintf_seg6_segs(char *str,
		size_t size, const struct seg6_segs *segs)
{
	str[0] = '\0';
	for (size_t i = 0; i < segs->num_segs; i++) {
		char addr[INET6_ADDRSTRLEN];
		bool not_last = (i + 1) < segs->num_segs;

		inet_ntop(AF_INET6, &segs->segs[i], addr, sizeof(addr));
		strlcat(str, addr, size);
		strlcat(str, not_last ? "," : "", size);
	}
	return strlen(str);
}

const char *seg6local_context2str(char *str, size_t size,
				  const struct seg6local_context *ctx,
				  uint32_t action)
{
	char b0[128];

	switch (action) {

	case ZEBRA_SEG6_LOCAL_ACTION_END:
		snprintf(str, size, "USP");
		return str;

	case ZEBRA_SEG6_LOCAL_ACTION_END_X:
	case ZEBRA_SEG6_LOCAL_ACTION_END_DX6:
		inet_ntop(AF_INET6, &ctx->nh6, b0, 128);
		snprintf(str, size, "nh6 %s", b0);
		return str;

	case ZEBRA_SEG6_LOCAL_ACTION_END_DX4:
		inet_ntop(AF_INET, &ctx->nh4, b0, 128);
		snprintf(str, size, "nh4 %s", b0);
		return str;

	case ZEBRA_SEG6_LOCAL_ACTION_END_T:
	case ZEBRA_SEG6_LOCAL_ACTION_END_DT6:
	case ZEBRA_SEG6_LOCAL_ACTION_END_DT4:
		snprintf(str, size, "table %u", ctx->table);
		return str;

	case ZEBRA_SEG6_LOCAL_ACTION_END_DX2:
	case ZEBRA_SEG6_LOCAL_ACTION_END_B6:
	case ZEBRA_SEG6_LOCAL_ACTION_END_B6_ENCAP:
	case ZEBRA_SEG6_LOCAL_ACTION_END_BM:
	case ZEBRA_SEG6_LOCAL_ACTION_END_S:
	case ZEBRA_SEG6_LOCAL_ACTION_END_AS:
	case ZEBRA_SEG6_LOCAL_ACTION_END_AM:
	case ZEBRA_SEG6_LOCAL_ACTION_UNSPEC:
	default:
		snprintf(str, size, "unknown(%s)", __func__);
		return str;
	}
}

struct srv6_locator *srv6_locator_alloc(const char *name)
{
	struct srv6_locator *locator = NULL;

	locator = XCALLOC(MTYPE_SRV6_LOCATOR, sizeof(struct srv6_locator));
	strlcpy(locator->name, name, sizeof(locator->name));
	locator->chunks = list_new();
	locator->chunks->del = (void (*)(void *))srv6_locator_chunk_free;

	QOBJ_REG(locator, srv6_locator);
	return locator;
}

struct srv6_locator_chunk *srv6_locator_chunk_alloc(void)
{
	struct srv6_locator_chunk *chunk = NULL;

	chunk = XCALLOC(MTYPE_SRV6_LOCATOR_CHUNK,
			sizeof(struct srv6_locator_chunk));
	return chunk;
}

void srv6_locator_free(struct srv6_locator *locator)
{
	if (locator) {
		QOBJ_UNREG(locator);
		list_delete(&locator->chunks);

		XFREE(MTYPE_SRV6_LOCATOR, locator);
	}
}

void srv6_locator_chunk_free(struct srv6_locator_chunk *chunk)
{
	XFREE(MTYPE_SRV6_LOCATOR_CHUNK, chunk);
}

json_object *srv6_locator_chunk_json(const struct srv6_locator_chunk *chunk)
{
	json_object *jo_root = NULL;

	jo_root = json_object_new_object();
	json_object_string_addf(jo_root, "prefix", "%pFX", &chunk->prefix);
	json_object_string_add(jo_root, "proto",
			       zebra_route_string(chunk->proto));

	return jo_root;
}

json_object *
srv6_locator_chunk_detailed_json(const struct srv6_locator_chunk *chunk)
{
	json_object *jo_root = NULL;

	jo_root = json_object_new_object();

	/* set prefix */
	json_object_string_addf(jo_root, "prefix", "%pFX", &chunk->prefix);

	/* set block_bits_length */
	json_object_int_add(jo_root, "blockBitsLength",
			    chunk->block_bits_length);

	/* set node_bits_length */
	json_object_int_add(jo_root, "nodeBitsLength", chunk->node_bits_length);

	/* set function_bits_length */
	json_object_int_add(jo_root, "functionBitsLength",
			    chunk->function_bits_length);

	/* set argument_bits_length */
	json_object_int_add(jo_root, "argumentBitsLength",
			    chunk->argument_bits_length);

	/* set keep */
	json_object_int_add(jo_root, "keep", chunk->keep);

	/* set proto */
	json_object_string_add(jo_root, "proto",
			       zebra_route_string(chunk->proto));

	/* set instance */
	json_object_int_add(jo_root, "instance", chunk->instance);

	/* set session_id */
	json_object_int_add(jo_root, "sessionId", chunk->session_id);

	return jo_root;
}

json_object *srv6_locator_json(const struct srv6_locator *loc)
{
	struct listnode *node;
	struct srv6_locator_chunk *chunk;
	json_object *jo_root = NULL;
	json_object *jo_chunk = NULL;
	json_object *jo_chunks = NULL;

	jo_root = json_object_new_object();

	/* set name */
	json_object_string_add(jo_root, "name", loc->name);

	/* set prefix */
	json_object_string_addf(jo_root, "prefix", "%pFX", &loc->prefix);

	/* set function_bits_length */
	json_object_int_add(jo_root, "functionBitsLength",
			    loc->function_bits_length);

	/* set status_up */
	json_object_boolean_add(jo_root, "statusUp",
				loc->status_up);

	/* set chunks */
	jo_chunks = json_object_new_array();
	json_object_object_add(jo_root, "chunks", jo_chunks);
	for (ALL_LIST_ELEMENTS_RO((struct list *)loc->chunks, node, chunk)) {
		jo_chunk = srv6_locator_chunk_json(chunk);
		json_object_array_add(jo_chunks, jo_chunk);
	}

	return jo_root;
}

json_object *srv6_locator_detailed_json(const struct srv6_locator *loc)
{
	struct listnode *node;
	struct srv6_locator_chunk *chunk;
	json_object *jo_root = NULL;
	json_object *jo_chunk = NULL;
	json_object *jo_chunks = NULL;

	jo_root = json_object_new_object();

	/* set name */
	json_object_string_add(jo_root, "name", loc->name);

	/* set prefix */
	json_object_string_addf(jo_root, "prefix", "%pFX", &loc->prefix);

	/* set block_bits_length */
	json_object_int_add(jo_root, "blockBitsLength", loc->block_bits_length);

	/* set node_bits_length */
	json_object_int_add(jo_root, "nodeBitsLength", loc->node_bits_length);

	/* set function_bits_length */
	json_object_int_add(jo_root, "functionBitsLength",
			    loc->function_bits_length);

	/* set argument_bits_length */
	json_object_int_add(jo_root, "argumentBitsLength",
			    loc->argument_bits_length);

	/* set algonum */
	json_object_int_add(jo_root, "algoNum", loc->algonum);

	/* set status_up */
	json_object_boolean_add(jo_root, "statusUp", loc->status_up);

	/* set chunks */
	jo_chunks = json_object_new_array();
	json_object_object_add(jo_root, "chunks", jo_chunks);
	for (ALL_LIST_ELEMENTS_RO((struct list *)loc->chunks, node, chunk)) {
		jo_chunk = srv6_locator_chunk_detailed_json(chunk);
		json_object_array_add(jo_chunks, jo_chunk);
	}

	return jo_root;
}
Commit	Line	Data
e496b420 HS	1	/*
	2	* SRv6 definitions
	3	* Copyright (C) 2020 Hiroki Shirokura, LINE Corporation
	4	*
	5	* This program is free software; you can redistribute it and/or modify it
	6	* under the terms of the GNU General Public License as published by the Free
	7	* Software Foundation; either version 2 of the License, or (at your option)
	8	* any later version.
	9	*
	10	* This program is distributed in the hope that it will be useful, but WITHOUT
	11	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	12	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
	13	* more details.
	14	*
	15	* You should have received a copy of the GNU General Public License along
	16	* with this program; see the file COPYING; if not, write to the Free Software
	17	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
	18	*/
	19
7309092b DL	20	#include "zebra.h"
7309092b DL	21
e496b420 HS	22	#include "srv6.h"
	23	#include "log.h"
	24
f2867068 HS	25	DEFINE_QOBJ_TYPE(srv6_locator);
	26	DEFINE_MTYPE_STATIC(LIB, SRV6_LOCATOR, "SRV6 locator");
	27	DEFINE_MTYPE_STATIC(LIB, SRV6_LOCATOR_CHUNK, "SRV6 locator chunk");
	28
e496b420 HS	29	const char *seg6local_action2str(uint32_t action)
	30	{
	31	switch (action) {
	32	case ZEBRA_SEG6_LOCAL_ACTION_END:
	33	return "End";
	34	case ZEBRA_SEG6_LOCAL_ACTION_END_X:
	35	return "End.X";
	36	case ZEBRA_SEG6_LOCAL_ACTION_END_T:
	37	return "End.T";
	38	case ZEBRA_SEG6_LOCAL_ACTION_END_DX2:
	39	return "End.DX2";
	40	case ZEBRA_SEG6_LOCAL_ACTION_END_DX6:
	41	return "End.DX6";
	42	case ZEBRA_SEG6_LOCAL_ACTION_END_DX4:
	43	return "End.DX4";
	44	case ZEBRA_SEG6_LOCAL_ACTION_END_DT6:
	45	return "End.DT6";
	46	case ZEBRA_SEG6_LOCAL_ACTION_END_DT4:
	47	return "End.DT4";
	48	case ZEBRA_SEG6_LOCAL_ACTION_END_B6:
	49	return "End.B6";
	50	case ZEBRA_SEG6_LOCAL_ACTION_END_B6_ENCAP:
	51	return "End.B6.Encap";
	52	case ZEBRA_SEG6_LOCAL_ACTION_END_BM:
	53	return "End.BM";
	54	case ZEBRA_SEG6_LOCAL_ACTION_END_S:
	55	return "End.S";
	56	case ZEBRA_SEG6_LOCAL_ACTION_END_AS:
	57	return "End.AS";
	58	case ZEBRA_SEG6_LOCAL_ACTION_END_AM:
	59	return "End.AM";
	60	case ZEBRA_SEG6_LOCAL_ACTION_UNSPEC:
	61	return "unspec";
	62	default:
	63	return "unknown";
	64	}
	65	}
	66
	67	int snprintf_seg6_segs(char *str,
	68	size_t size, const struct seg6_segs *segs)
	69	{
	70	str[0] = '\0';
	71	for (size_t i = 0; i < segs->num_segs; i++) {
	72	char addr[INET6_ADDRSTRLEN];
	73	bool not_last = (i + 1) < segs->num_segs;
	74
	75	inet_ntop(AF_INET6, &segs->segs[i], addr, sizeof(addr));
	76	strlcat(str, addr, size);
	77	strlcat(str, not_last ? "," : "", size);
	78	}
	79	return strlen(str);
	80	}
	81
	82	const char seg6local_context2str(char str, size_t size,
7a4b49bd HS	83	const struct seg6local_context *ctx,
7a4b49bd HS	84	uint32_t action)
e496b420 HS	85	{
	86	char b0[128];
	87
	88	switch (action) {
	89
	90	case ZEBRA_SEG6_LOCAL_ACTION_END:
	91	snprintf(str, size, "USP");
	92	return str;
	93
	94	case ZEBRA_SEG6_LOCAL_ACTION_END_X:
	95	case ZEBRA_SEG6_LOCAL_ACTION_END_DX6:
	96	inet_ntop(AF_INET6, &ctx->nh6, b0, 128);
	97	snprintf(str, size, "nh6 %s", b0);
	98	return str;
	99
	100	case ZEBRA_SEG6_LOCAL_ACTION_END_DX4:
	101	inet_ntop(AF_INET, &ctx->nh4, b0, 128);
	102	snprintf(str, size, "nh4 %s", b0);
	103	return str;
	104
	105	case ZEBRA_SEG6_LOCAL_ACTION_END_T:
	106	case ZEBRA_SEG6_LOCAL_ACTION_END_DT6:
	107	case ZEBRA_SEG6_LOCAL_ACTION_END_DT4:
	108	snprintf(str, size, "table %u", ctx->table);
	109	return str;
	110
	111	case ZEBRA_SEG6_LOCAL_ACTION_END_DX2:
	112	case ZEBRA_SEG6_LOCAL_ACTION_END_B6:
	113	case ZEBRA_SEG6_LOCAL_ACTION_END_B6_ENCAP:
	114	case ZEBRA_SEG6_LOCAL_ACTION_END_BM:
	115	case ZEBRA_SEG6_LOCAL_ACTION_END_S:
	116	case ZEBRA_SEG6_LOCAL_ACTION_END_AS:
	117	case ZEBRA_SEG6_LOCAL_ACTION_END_AM:
	118	case ZEBRA_SEG6_LOCAL_ACTION_UNSPEC:
	119	default:
	120	snprintf(str, size, "unknown(%s)", __func__);
	121	return str;
	122	}
	123	}
f2867068 HS	124
	125	struct srv6_locator srv6_locator_alloc(const char name)
	126	{
	127	struct srv6_locator *locator = NULL;
	128
	129	locator = XCALLOC(MTYPE_SRV6_LOCATOR, sizeof(struct srv6_locator));
	130	strlcpy(locator->name, name, sizeof(locator->name));
	131	locator->chunks = list_new();
4b220ad0 MS	132	locator->chunks->del = (void ()(void ))srv6_locator_chunk_free;
4b220ad0 MS	133
f2867068 HS	134	QOBJ_REG(locator, srv6_locator);
	135	return locator;
	136	}
	137
	138	struct srv6_locator_chunk *srv6_locator_chunk_alloc(void)
	139	{
	140	struct srv6_locator_chunk *chunk = NULL;
	141
	142	chunk = XCALLOC(MTYPE_SRV6_LOCATOR_CHUNK,
	143	sizeof(struct srv6_locator_chunk));
	144	return chunk;
	145	}
	146
	147	void srv6_locator_free(struct srv6_locator *locator)
	148	{
4b220ad0 MS	149	if (locator) {
	150	QOBJ_UNREG(locator);
	151	list_delete(&locator->chunks);
	152
	153	XFREE(MTYPE_SRV6_LOCATOR, locator);
	154	}
f2867068 HS	155	}
	156
	157	void srv6_locator_chunk_free(struct srv6_locator_chunk *chunk)
	158	{
	159	XFREE(MTYPE_SRV6_LOCATOR_CHUNK, chunk);
	160	}
	161
	162	json_object srv6_locator_chunk_json(const struct srv6_locator_chunk chunk)
	163	{
f2867068 HS	164	json_object *jo_root = NULL;
	165
	166	jo_root = json_object_new_object();
a6c86424	167	json_object_string_addf(jo_root, "prefix", "%pFX", &chunk->prefix);
f2867068 HS	168	json_object_string_add(jo_root, "proto",
	169	zebra_route_string(chunk->proto));
	170
	171	return jo_root;
	172	}
	173
559f4b2f YS	174	json_object *
	175	srv6_locator_chunk_detailed_json(const struct srv6_locator_chunk *chunk)
	176	{
	177	json_object *jo_root = NULL;
	178
	179	jo_root = json_object_new_object();
	180
	181	/* set prefix */
	182	json_object_string_addf(jo_root, "prefix", "%pFX", &chunk->prefix);
	183
	184	/* set block_bits_length */
	185	json_object_int_add(jo_root, "blockBitsLength",
	186	chunk->block_bits_length);
	187
	188	/* set node_bits_length */
	189	json_object_int_add(jo_root, "nodeBitsLength", chunk->node_bits_length);
	190
	191	/* set function_bits_length */
	192	json_object_int_add(jo_root, "functionBitsLength",
	193	chunk->function_bits_length);
	194
	195	/* set argument_bits_length */
	196	json_object_int_add(jo_root, "argumentBitsLength",
	197	chunk->argument_bits_length);
	198
	199	/* set keep */
	200	json_object_int_add(jo_root, "keep", chunk->keep);
	201
	202	/* set proto */
	203	json_object_string_add(jo_root, "proto",
	204	zebra_route_string(chunk->proto));
	205
	206	/* set instance */
	207	json_object_int_add(jo_root, "instance", chunk->instance);
	208
	209	/* set session_id */
	210	json_object_int_add(jo_root, "sessionId", chunk->session_id);
	211
	212	return jo_root;
	213	}
	214
f2867068 HS	215	json_object srv6_locator_json(const struct srv6_locator loc)
f2867068 HS	216	{
f2867068 HS	217	struct listnode *node;
	218	struct srv6_locator_chunk *chunk;
	219	json_object *jo_root = NULL;
	220	json_object *jo_chunk = NULL;
	221	json_object *jo_chunks = NULL;
	222
	223	jo_root = json_object_new_object();
	224
	225	/* set name */
	226	json_object_string_add(jo_root, "name", loc->name);
	227
	228	/* set prefix */
a6c86424	229	json_object_string_addf(jo_root, "prefix", "%pFX", &loc->prefix);
f2867068 HS	230
f2867068 HS	231	/* set function_bits_length */
326591dc	232	json_object_int_add(jo_root, "functionBitsLength",
f2867068 HS	233	loc->function_bits_length);
	234
	235	/* set status_up */
326591dc	236	json_object_boolean_add(jo_root, "statusUp",
f2867068 HS	237	loc->status_up);
	238
	239	/* set chunks */
	240	jo_chunks = json_object_new_array();
	241	json_object_object_add(jo_root, "chunks", jo_chunks);
	242	for (ALL_LIST_ELEMENTS_RO((struct list *)loc->chunks, node, chunk)) {
	243	jo_chunk = srv6_locator_chunk_json(chunk);
	244	json_object_array_add(jo_chunks, jo_chunk);
	245	}
	246
	247	return jo_root;
	248	}
559f4b2f YS	249
	250	json_object srv6_locator_detailed_json(const struct srv6_locator loc)
	251	{
	252	struct listnode *node;
	253	struct srv6_locator_chunk *chunk;
	254	json_object *jo_root = NULL;
	255	json_object *jo_chunk = NULL;
	256	json_object *jo_chunks = NULL;
	257
	258	jo_root = json_object_new_object();
	259
	260	/* set name */
	261	json_object_string_add(jo_root, "name", loc->name);
	262
	263	/* set prefix */
	264	json_object_string_addf(jo_root, "prefix", "%pFX", &loc->prefix);
	265
	266	/* set block_bits_length */
	267	json_object_int_add(jo_root, "blockBitsLength", loc->block_bits_length);
	268
	269	/* set node_bits_length */
	270	json_object_int_add(jo_root, "nodeBitsLength", loc->node_bits_length);
	271
	272	/* set function_bits_length */
	273	json_object_int_add(jo_root, "functionBitsLength",
	274	loc->function_bits_length);
	275
	276	/* set argument_bits_length */
	277	json_object_int_add(jo_root, "argumentBitsLength",
	278	loc->argument_bits_length);
	279
	280	/* set algonum */
	281	json_object_int_add(jo_root, "algoNum", loc->algonum);
	282
	283	/* set status_up */
	284	json_object_boolean_add(jo_root, "statusUp", loc->status_up);
	285
	286	/* set chunks */
	287	jo_chunks = json_object_new_array();
	288	json_object_object_add(jo_root, "chunks", jo_chunks);
	289	for (ALL_LIST_ELEMENTS_RO((struct list *)loc->chunks, node, chunk)) {
	290	jo_chunk = srv6_locator_chunk_detailed_json(chunk);
	291	json_object_array_add(jo_chunks, jo_chunk);
	292	}
	293
	294	return jo_root;
	295	}