[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"

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,
		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;
	}
}
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
	25	const char *seg6local_action2str(uint32_t action)
	26	{
	27	switch (action) {
	28	case ZEBRA_SEG6_LOCAL_ACTION_END:
	29	return "End";
	30	case ZEBRA_SEG6_LOCAL_ACTION_END_X:
	31	return "End.X";
	32	case ZEBRA_SEG6_LOCAL_ACTION_END_T:
	33	return "End.T";
	34	case ZEBRA_SEG6_LOCAL_ACTION_END_DX2:
	35	return "End.DX2";
	36	case ZEBRA_SEG6_LOCAL_ACTION_END_DX6:
	37	return "End.DX6";
	38	case ZEBRA_SEG6_LOCAL_ACTION_END_DX4:
	39	return "End.DX4";
	40	case ZEBRA_SEG6_LOCAL_ACTION_END_DT6:
	41	return "End.DT6";
	42	case ZEBRA_SEG6_LOCAL_ACTION_END_DT4:
	43	return "End.DT4";
	44	case ZEBRA_SEG6_LOCAL_ACTION_END_B6:
	45	return "End.B6";
	46	case ZEBRA_SEG6_LOCAL_ACTION_END_B6_ENCAP:
	47	return "End.B6.Encap";
	48	case ZEBRA_SEG6_LOCAL_ACTION_END_BM:
	49	return "End.BM";
	50	case ZEBRA_SEG6_LOCAL_ACTION_END_S:
	51	return "End.S";
	52	case ZEBRA_SEG6_LOCAL_ACTION_END_AS:
	53	return "End.AS";
	54	case ZEBRA_SEG6_LOCAL_ACTION_END_AM:
	55	return "End.AM";
	56	case ZEBRA_SEG6_LOCAL_ACTION_UNSPEC:
	57	return "unspec";
	58	default:
	59	return "unknown";
	60	}
	61	}
	62
	63	int snprintf_seg6_segs(char *str,
	64	size_t size, const struct seg6_segs *segs)
	65	{
	66	str[0] = '\0';
	67	for (size_t i = 0; i < segs->num_segs; i++) {
	68	char addr[INET6_ADDRSTRLEN];
	69	bool not_last = (i + 1) < segs->num_segs;
	70
	71	inet_ntop(AF_INET6, &segs->segs[i], addr, sizeof(addr));
	72	strlcat(str, addr, size);
	73	strlcat(str, not_last ? "," : "", size);
	74	}
	75	return strlen(str);
	76	}
	77
	78	const char seg6local_context2str(char str, size_t size,
	79	struct seg6local_context *ctx, uint32_t action)
	80	{
	81	char b0[128];
	82
	83	switch (action) {
	84
	85	case ZEBRA_SEG6_LOCAL_ACTION_END:
86	snprintf(str, size, "USP");
87	return str;
88
89	case ZEBRA_SEG6_LOCAL_ACTION_END_X:
90	case ZEBRA_SEG6_LOCAL_ACTION_END_DX6:
91	inet_ntop(AF_INET6, &ctx->nh6, b0, 128);
92	snprintf(str, size, "nh6 %s", b0);
93	return str;
94
95	case ZEBRA_SEG6_LOCAL_ACTION_END_DX4:
96	inet_ntop(AF_INET, &ctx->nh4, b0, 128);
97	snprintf(str, size, "nh4 %s", b0);
98	return str;
99
100	case ZEBRA_SEG6_LOCAL_ACTION_END_T:
101	case ZEBRA_SEG6_LOCAL_ACTION_END_DT6:
102	case ZEBRA_SEG6_LOCAL_ACTION_END_DT4:
103	snprintf(str, size, "table %u", ctx->table);
104	return str;
105
106	case ZEBRA_SEG6_LOCAL_ACTION_END_DX2:
107	case ZEBRA_SEG6_LOCAL_ACTION_END_B6:
108	case ZEBRA_SEG6_LOCAL_ACTION_END_B6_ENCAP:
109	case ZEBRA_SEG6_LOCAL_ACTION_END_BM:
110	case ZEBRA_SEG6_LOCAL_ACTION_END_S:
111	case ZEBRA_SEG6_LOCAL_ACTION_END_AS:
112	case ZEBRA_SEG6_LOCAL_ACTION_END_AM:
113	case ZEBRA_SEG6_LOCAL_ACTION_UNSPEC:
114	default:
115	snprintf(str, size, "unknown(%s)", __func__);
116	return str;
117	}
118	}