[mirror_iproute2.git] / lib / rt_names.c

/*
 * rt_names.c		rtnetlink names DB.
 *
 *		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.
 *
 * Authors:	Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
 */

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <syslog.h>
#include <fcntl.h>
#include <string.h>
#include <sys/time.h>
#include <sys/socket.h>

#include <asm/types.h>
#include <linux/rtnetlink.h>

#include "rt_names.h"

#ifndef CONFDIR
#define CONFDIR "/etc/iproute2"
#endif

#define NAME_MAX_LEN 512

struct rtnl_hash_entry {
	struct rtnl_hash_entry *next;
	const char *		name;
	unsigned int		id;
};

static int fread_id_name(FILE *fp, int *id, char *namebuf)
{
	char buf[NAME_MAX_LEN];

	while (fgets(buf, sizeof(buf), fp)) {
		char *p = buf;

		while (*p == ' ' || *p == '\t')
			p++;

		if (*p == '#' || *p == '\n' || *p == 0)
			continue;

		if (sscanf(p, "0x%x %s\n", id, namebuf) != 2 &&
				sscanf(p, "0x%x %s #", id, namebuf) != 2 &&
				sscanf(p, "%d %s\n", id, namebuf) != 2 &&
				sscanf(p, "%d %s #", id, namebuf) != 2) {
			strcpy(namebuf, p);
			return -1;
		}
		return 1;
	}
	return 0;
}

static void
rtnl_hash_initialize(const char *file, struct rtnl_hash_entry **hash, int size)
{
	struct rtnl_hash_entry *entry;
	FILE *fp;
	int id;
	char namebuf[NAME_MAX_LEN] = {0};
	int ret;

	fp = fopen(file, "r");
	if (!fp)
		return;

	while ((ret = fread_id_name(fp, &id, &namebuf[0]))) {
		if (ret == -1) {
			fprintf(stderr, "Database %s is corrupted at %s\n",
					file, namebuf);
			fclose(fp);
			return;
		}

		if (id<0)
			continue;

		entry = malloc(sizeof(*entry));
		entry->id   = id;
		entry->name = strdup(namebuf);
		entry->next = hash[id & (size - 1)];
		hash[id & (size - 1)] = entry;
	}
	fclose(fp);
}

static void rtnl_tab_initialize(const char *file, char **tab, int size)
{
	FILE *fp;
	int id;
	char namebuf[NAME_MAX_LEN] = {0};
	int ret;

	fp = fopen(file, "r");
	if (!fp)
		return;

	while ((ret = fread_id_name(fp, &id, &namebuf[0]))) {
		if (ret == -1) {
			fprintf(stderr, "Database %s is corrupted at %s\n",
					file, namebuf);
			fclose(fp);
			return;
		}
		if (id<0 || id>size)
			continue;

		tab[id] = strdup(namebuf);
	}
	fclose(fp);
}

static char * rtnl_rtprot_tab[256] = {
	[RTPROT_UNSPEC] = "none",
	[RTPROT_REDIRECT] ="redirect",
	[RTPROT_KERNEL] = "kernel",
	[RTPROT_BOOT] = "boot",
	[RTPROT_STATIC] = "static",

	[RTPROT_GATED] = "gated",
	[RTPROT_RA] = "ra",
	[RTPROT_MRT] =	"mrt",
	[RTPROT_ZEBRA] ="zebra",
	[RTPROT_BIRD] = "bird",
	[RTPROT_BABEL] = "babel",
	[RTPROT_DNROUTED] = "dnrouted",
	[RTPROT_XORP] = "xorp",
	[RTPROT_NTK] = "ntk",
	[RTPROT_DHCP] = "dhcp",
};


static int rtnl_rtprot_init;

static void rtnl_rtprot_initialize(void)
{
	rtnl_rtprot_init = 1;
	rtnl_tab_initialize(CONFDIR "/rt_protos",
			    rtnl_rtprot_tab, 256);
}

const char * rtnl_rtprot_n2a(int id, char *buf, int len)
{
	if (id<0 || id>=256) {
		snprintf(buf, len, "%u", id);
		return buf;
	}
	if (!rtnl_rtprot_tab[id]) {
		if (!rtnl_rtprot_init)
			rtnl_rtprot_initialize();
	}
	if (rtnl_rtprot_tab[id])
		return rtnl_rtprot_tab[id];
	snprintf(buf, len, "%u", id);
	return buf;
}

int rtnl_rtprot_a2n(__u32 *id, const char *arg)
{
	static char *cache = NULL;
	static unsigned long res;
	char *end;
	int i;

	if (cache && strcmp(cache, arg) == 0) {
		*id = res;
		return 0;
	}

	if (!rtnl_rtprot_init)
		rtnl_rtprot_initialize();

	for (i=0; i<256; i++) {
		if (rtnl_rtprot_tab[i] &&
		    strcmp(rtnl_rtprot_tab[i], arg) == 0) {
			cache = rtnl_rtprot_tab[i];
			res = i;
			*id = res;
			return 0;
		}
	}

	res = strtoul(arg, &end, 0);
	if (!end || end == arg || *end || res > 255)
		return -1;
	*id = res;
	return 0;
}

static char * rtnl_rtscope_tab[256] = {
	"global",
};

static int rtnl_rtscope_init;

static void rtnl_rtscope_initialize(void)
{
	rtnl_rtscope_init = 1;
	rtnl_rtscope_tab[RT_SCOPE_NOWHERE] = "nowhere";
	rtnl_rtscope_tab[RT_SCOPE_HOST]    = "host";
	rtnl_rtscope_tab[RT_SCOPE_LINK]    = "link";
	rtnl_rtscope_tab[RT_SCOPE_SITE]    = "site";
	rtnl_tab_initialize(CONFDIR "/rt_scopes",
			    rtnl_rtscope_tab, 256);
}

const char *rtnl_rtscope_n2a(int id, char *buf, int len)
{
	if (id<0 || id>=256) {
		snprintf(buf, len, "%d", id);
		return buf;
	}
	if (!rtnl_rtscope_tab[id]) {
		if (!rtnl_rtscope_init)
			rtnl_rtscope_initialize();
	}
	if (rtnl_rtscope_tab[id])
		return rtnl_rtscope_tab[id];
	snprintf(buf, len, "%d", id);
	return buf;
}

int rtnl_rtscope_a2n(__u32 *id, const char *arg)
{
	static const char *cache = NULL;
	static unsigned long res;
	char *end;
	int i;

	if (cache && strcmp(cache, arg) == 0) {
		*id = res;
		return 0;
	}

	if (!rtnl_rtscope_init)
		rtnl_rtscope_initialize();

	for (i=0; i<256; i++) {
		if (rtnl_rtscope_tab[i] &&
		    strcmp(rtnl_rtscope_tab[i], arg) == 0) {
			cache = rtnl_rtscope_tab[i];
			res = i;
			*id = res;
			return 0;
		}
	}

	res = strtoul(arg, &end, 0);
	if (!end || end == arg || *end || res > 255)
		return -1;
	*id = res;
	return 0;
}


static char * rtnl_rtrealm_tab[256] = {
	"unknown",
};

static int rtnl_rtrealm_init;

static void rtnl_rtrealm_initialize(void)
{
	rtnl_rtrealm_init = 1;
	rtnl_tab_initialize(CONFDIR "/rt_realms",
			    rtnl_rtrealm_tab, 256);
}

const char *rtnl_rtrealm_n2a(int id, char *buf, int len)
{
	if (id<0 || id>=256) {
		snprintf(buf, len, "%d", id);
		return buf;
	}
	if (!rtnl_rtrealm_tab[id]) {
		if (!rtnl_rtrealm_init)
			rtnl_rtrealm_initialize();
	}
	if (rtnl_rtrealm_tab[id])
		return rtnl_rtrealm_tab[id];
	snprintf(buf, len, "%d", id);
	return buf;
}


int rtnl_rtrealm_a2n(__u32 *id, const char *arg)
{
	static char *cache = NULL;
	static unsigned long res;
	char *end;
	int i;

	if (cache && strcmp(cache, arg) == 0) {
		*id = res;
		return 0;
	}

	if (!rtnl_rtrealm_init)
		rtnl_rtrealm_initialize();

	for (i=0; i<256; i++) {
		if (rtnl_rtrealm_tab[i] &&
		    strcmp(rtnl_rtrealm_tab[i], arg) == 0) {
			cache = rtnl_rtrealm_tab[i];
			res = i;
			*id = res;
			return 0;
		}
	}

	res = strtoul(arg, &end, 0);
	if (!end || end == arg || *end || res > 255)
		return -1;
	*id = res;
	return 0;
}


static struct rtnl_hash_entry dflt_table_entry  = { .name = "default" };
static struct rtnl_hash_entry main_table_entry  = { .name = "main" };
static struct rtnl_hash_entry local_table_entry = { .name = "local" };

static struct rtnl_hash_entry * rtnl_rttable_hash[256] = {
	[RT_TABLE_DEFAULT] = &dflt_table_entry,
	[RT_TABLE_MAIN]    = &main_table_entry,
	[RT_TABLE_LOCAL]   = &local_table_entry,
};

static int rtnl_rttable_init;

static void rtnl_rttable_initialize(void)
{
	int i;

	rtnl_rttable_init = 1;
	for (i = 0; i < 256; i++) {
		if (rtnl_rttable_hash[i])
			rtnl_rttable_hash[i]->id = i;
	}
	rtnl_hash_initialize(CONFDIR "/rt_tables",
			     rtnl_rttable_hash, 256);
}

const char * rtnl_rttable_n2a(__u32 id, char *buf, int len)
{
	struct rtnl_hash_entry *entry;

	if (id > RT_TABLE_MAX) {
		snprintf(buf, len, "%u", id);
		return buf;
	}
	if (!rtnl_rttable_init)
		rtnl_rttable_initialize();
	entry = rtnl_rttable_hash[id & 255];
	while (entry && entry->id != id)
		entry = entry->next;
	if (entry)
		return entry->name;
	snprintf(buf, len, "%u", id);
	return buf;
}

int rtnl_rttable_a2n(__u32 *id, const char *arg)
{
	static const char *cache = NULL;
	static unsigned long res;
	struct rtnl_hash_entry *entry;
	char *end;
	__u32 i;

	if (cache && strcmp(cache, arg) == 0) {
		*id = res;
		return 0;
	}

	if (!rtnl_rttable_init)
		rtnl_rttable_initialize();

	for (i=0; i<256; i++) {
		entry = rtnl_rttable_hash[i];
		while (entry && strcmp(entry->name, arg))
			entry = entry->next;
		if (entry) {
			cache = entry->name;
			res = entry->id;
			*id = res;
			return 0;
		}
	}

	i = strtoul(arg, &end, 0);
	if (!end || end == arg || *end || i > RT_TABLE_MAX)
		return -1;
	*id = i;
	return 0;
}


static char * rtnl_rtdsfield_tab[256] = {
	"0",
};

static int rtnl_rtdsfield_init;

static void rtnl_rtdsfield_initialize(void)
{
	rtnl_rtdsfield_init = 1;
	rtnl_tab_initialize(CONFDIR "/rt_dsfield",
			    rtnl_rtdsfield_tab, 256);
}

const char *rtnl_dsfield_n2a(int id, char *buf, int len)
{
	if (id<0 || id>=256) {
		snprintf(buf, len, "%d", id);
		return buf;
	}
	if (!rtnl_rtdsfield_tab[id]) {
		if (!rtnl_rtdsfield_init)
			rtnl_rtdsfield_initialize();
	}
	if (rtnl_rtdsfield_tab[id])
		return rtnl_rtdsfield_tab[id];
	snprintf(buf, len, "0x%02x", id);
	return buf;
}


int rtnl_dsfield_a2n(__u32 *id, const char *arg)
{
	static char *cache = NULL;
	static unsigned long res;
	char *end;
	int i;

	if (cache && strcmp(cache, arg) == 0) {
		*id = res;
		return 0;
	}

	if (!rtnl_rtdsfield_init)
		rtnl_rtdsfield_initialize();

	for (i=0; i<256; i++) {
		if (rtnl_rtdsfield_tab[i] &&
		    strcmp(rtnl_rtdsfield_tab[i], arg) == 0) {
			cache = rtnl_rtdsfield_tab[i];
			res = i;
			*id = res;
			return 0;
		}
	}

	res = strtoul(arg, &end, 16);
	if (!end || end == arg || *end || res > 255)
		return -1;
	*id = res;
	return 0;
}


static struct rtnl_hash_entry dflt_group_entry  = { .id = 0, .name = "default" };

static struct rtnl_hash_entry * rtnl_group_hash[256] = {
	[0] = &dflt_group_entry,
};

static int rtnl_group_init;

static void rtnl_group_initialize(void)
{
	rtnl_group_init = 1;
	rtnl_hash_initialize(CONFDIR "/group",
			     rtnl_group_hash, 256);
}

int rtnl_group_a2n(int *id, const char *arg)
{
	static const char *cache = NULL;
	static unsigned long res;
	struct rtnl_hash_entry *entry;
	char *end;
	int i;

	if (cache && strcmp(cache, arg) == 0) {
		*id = res;
		return 0;
	}

	if (!rtnl_group_init)
		rtnl_group_initialize();

	for (i=0; i<256; i++) {
		entry = rtnl_group_hash[i];
		while (entry && strcmp(entry->name, arg))
			entry = entry->next;
		if (entry) {
			cache = entry->name;
			res = entry->id;
			*id = res;
			return 0;
		}
	}

	i = strtol(arg, &end, 0);
	if (!end || end == arg || *end || i < 0)
		return -1;
	*id = i;
	return 0;
}

const char *rtnl_group_n2a(int id, char *buf, int len)
{
	struct rtnl_hash_entry *entry;
	int i;

	if (!rtnl_group_init)
		rtnl_group_initialize();

	for (i=0; i<256; i++) {
		entry = rtnl_group_hash[i];
		if (entry && entry->id == id) {
			return entry->name;
		}
	}

	snprintf(buf, len, "%d", id);
	return buf;
}

static char *nl_proto_tab[256] = {
	[NETLINK_ROUTE]          = "rtnl",
	[NETLINK_UNUSED]         = "unused",
	[NETLINK_USERSOCK]       = "usersock",
	[NETLINK_FIREWALL]       = "fw",
	[NETLINK_SOCK_DIAG]      = "tcpdiag",
	[NETLINK_NFLOG]          = "nflog",
	[NETLINK_XFRM]           = "xfrm",
	[NETLINK_SELINUX]        = "selinux",
	[NETLINK_ISCSI]          = "iscsi",
	[NETLINK_AUDIT]          = "audit",
	[NETLINK_FIB_LOOKUP]     = "fiblookup",
	[NETLINK_CONNECTOR]      = "connector",
	[NETLINK_NETFILTER]      = "nft",
	[NETLINK_IP6_FW]         = "ip6fw",
	[NETLINK_DNRTMSG]        = "dec-rt",
	[NETLINK_KOBJECT_UEVENT] = "uevent",
	[NETLINK_GENERIC]        = "genl",
	[NETLINK_SCSITRANSPORT]  = "scsi-trans",
	[NETLINK_ECRYPTFS]       = "ecryptfs",
	[NETLINK_RDMA]           = "rdma",
	[NETLINK_CRYPTO]         = "crypto",
};

static int nl_proto_init;

static void nl_proto_initialize(void)
{
	nl_proto_init = 1;
	rtnl_tab_initialize(CONFDIR "/nl_protos",
			    nl_proto_tab, 256);
}

const char *nl_proto_n2a(int id, char *buf, int len)
{
	if (id < 0 || id >= 256) {
		snprintf(buf, len, "%u", id);
		return buf;
	}

	if (!nl_proto_init)
		nl_proto_initialize();

	if (nl_proto_tab[id])
		return nl_proto_tab[id];

	snprintf(buf, len, "%u", id);
	return buf;
}

int nl_proto_a2n(__u32 *id, const char *arg)
{
	static char *cache = NULL;
	static unsigned long res;
	char *end;
	int i;

	if (cache && strcmp(cache, arg) == 0) {
		*id = res;
		return 0;
	}

	if (!nl_proto_init)
		nl_proto_initialize();

	for (i = 0; i < 256; i++) {
		if (nl_proto_tab[i] &&
		    strcmp(nl_proto_tab[i], arg) == 0) {
			cache = nl_proto_tab[i];
			res = i;
			*id = res;
			return 0;
		}
	}

	res = strtoul(arg, &end, 0);
	if (!end || end == arg || *end || res > 255)
		return -1;
	*id = res;
	return 0;
}
Commit	Line	Data
aba5acdf SH	1	/*
	2	* rt_names.c rtnetlink names DB.
	3	*
	4	* This program is free software; you can redistribute it and/or
	5	* modify it under the terms of the GNU General Public License
	6	* as published by the Free Software Foundation; either version
	7	* 2 of the License, or (at your option) any later version.
	8	*
	9	* Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
	10	*/
	11
	12	#include <stdio.h>
	13	#include <stdlib.h>
	14	#include <unistd.h>
	15	#include <syslog.h>
	16	#include <fcntl.h>
	17	#include <string.h>
	18	#include <sys/time.h>
b88fd9f4 SH	19	#include <sys/socket.h>
	20
	21	#include <asm/types.h>
	22	#include <linux/rtnetlink.h>
	23
	24	#include "rt_names.h"
aba5acdf	25
fb72129b CT	26	#ifndef CONFDIR
	27	#define CONFDIR "/etc/iproute2"
	28	#endif
	29
f00073e8	30	#define NAME_MAX_LEN 512
f00073e8	31
9c47d877 PM	32	struct rtnl_hash_entry {
9c47d877 PM	33	struct rtnl_hash_entry *next;
46ac8a55	34	const char * name;
9c47d877 PM	35	unsigned int id;
	36	};
	37
f00073e8	38	static int fread_id_name(FILE fp, int id, char *namebuf)
	39	{
	40	char buf[NAME_MAX_LEN];
	41
	42	while (fgets(buf, sizeof(buf), fp)) {
	43	char *p = buf;
	44
	45	while (p == ' ' \|\| p == '\t')
	46	p++;
	47
	48	if (p == '#' \|\| p == '\n' \|\| *p == 0)
	49	continue;
	50
	51	if (sscanf(p, "0x%x %s\n", id, namebuf) != 2 &&
	52	sscanf(p, "0x%x %s #", id, namebuf) != 2 &&
	53	sscanf(p, "%d %s\n", id, namebuf) != 2 &&
	54	sscanf(p, "%d %s #", id, namebuf) != 2) {
	55	strcpy(namebuf, p);
	56	return -1;
	57	}
	58	return 1;
	59	}
	60	return 0;
	61	}
	62
9c47d877	63	static void
46ac8a55	64	rtnl_hash_initialize(const char file, struct rtnl_hash_entry *hash, int size)
9c47d877 PM	65	{
9c47d877 PM	66	struct rtnl_hash_entry *entry;
9c47d877	67	FILE *fp;
f00073e8	68	int id;
	69	char namebuf[NAME_MAX_LEN] = {0};
	70	int ret;
9c47d877 PM	71
	72	fp = fopen(file, "r");
	73	if (!fp)
	74	return;
9c47d877	75
f00073e8	76	while ((ret = fread_id_name(fp, &id, &namebuf[0]))) {
f00073e8	77	if (ret == -1) {
9c47d877	78	fprintf(stderr, "Database %s is corrupted at %s\n",
f00073e8	79	file, namebuf);
97c13582	80	fclose(fp);
9c47d877 PM	81	return;
	82	}
	83
	84	if (id<0)
	85	continue;
f00073e8	86
9c47d877 PM	87	entry = malloc(sizeof(*entry));
	88	entry->id = id;
	89	entry->name = strdup(namebuf);
	90	entry->next = hash[id & (size - 1)];
	91	hash[id & (size - 1)] = entry;
	92	}
	93	fclose(fp);
	94	}
	95
46ac8a55	96	static void rtnl_tab_initialize(const char file, char *tab, int size)
aba5acdf	97	{
aba5acdf	98	FILE *fp;
f00073e8	99	int id;
	100	char namebuf[NAME_MAX_LEN] = {0};
	101	int ret;
aba5acdf SH	102
	103	fp = fopen(file, "r");
	104	if (!fp)
	105	return;
aba5acdf	106
f00073e8	107	while ((ret = fread_id_name(fp, &id, &namebuf[0]))) {
f00073e8	108	if (ret == -1) {
aba5acdf	109	fprintf(stderr, "Database %s is corrupted at %s\n",
f00073e8	110	file, namebuf);
97c13582	111	fclose(fp);
aba5acdf SH	112	return;
aba5acdf SH	113	}
aba5acdf SH	114	if (id<0 \|\| id>size)
	115	continue;
	116
	117	tab[id] = strdup(namebuf);
	118	}
	119	fclose(fp);
	120	}
	121
aba5acdf	122	static char * rtnl_rtprot_tab[256] = {
b88fd9f4 SH	123	[RTPROT_UNSPEC] = "none",
	124	[RTPROT_REDIRECT] ="redirect",
	125	[RTPROT_KERNEL] = "kernel",
	126	[RTPROT_BOOT] = "boot",
	127	[RTPROT_STATIC] = "static",
	128
	129	[RTPROT_GATED] = "gated",
	130	[RTPROT_RA] = "ra",
	131	[RTPROT_MRT] = "mrt",
	132	[RTPROT_ZEBRA] ="zebra",
	133	[RTPROT_BIRD] = "bird",
1fa804e0	134	[RTPROT_BABEL] = "babel",
b88fd9f4 SH	135	[RTPROT_DNROUTED] = "dnrouted",
b88fd9f4 SH	136	[RTPROT_XORP] = "xorp",
40b6c62c	137	[RTPROT_NTK] = "ntk",
1e659af3	138	[RTPROT_DHCP] = "dhcp",
aba5acdf SH	139	};
	140
	141
aba5acdf SH	142	static int rtnl_rtprot_init;
	143
	144	static void rtnl_rtprot_initialize(void)
	145	{
	146	rtnl_rtprot_init = 1;
fb72129b	147	rtnl_tab_initialize(CONFDIR "/rt_protos",
aba5acdf SH	148	rtnl_rtprot_tab, 256);
	149	}
	150
46ac8a55	151	const char * rtnl_rtprot_n2a(int id, char *buf, int len)
aba5acdf SH	152	{
aba5acdf SH	153	if (id<0 \|\| id>=256) {
46ac8a55	154	snprintf(buf, len, "%u", id);
aba5acdf SH	155	return buf;
	156	}
	157	if (!rtnl_rtprot_tab[id]) {
	158	if (!rtnl_rtprot_init)
	159	rtnl_rtprot_initialize();
	160	}
	161	if (rtnl_rtprot_tab[id])
	162	return rtnl_rtprot_tab[id];
46ac8a55	163	snprintf(buf, len, "%u", id);
aba5acdf SH	164	return buf;
	165	}
	166
46ac8a55	167	int rtnl_rtprot_a2n(__u32 id, const char arg)
aba5acdf SH	168	{
	169	static char *cache = NULL;
	170	static unsigned long res;
	171	char *end;
	172	int i;
	173
	174	if (cache && strcmp(cache, arg) == 0) {
	175	*id = res;
	176	return 0;
	177	}
	178
	179	if (!rtnl_rtprot_init)
	180	rtnl_rtprot_initialize();
	181
	182	for (i=0; i<256; i++) {
	183	if (rtnl_rtprot_tab[i] &&
	184	strcmp(rtnl_rtprot_tab[i], arg) == 0) {
	185	cache = rtnl_rtprot_tab[i];
	186	res = i;
	187	*id = res;
	188	return 0;
	189	}
	190	}
	191
	192	res = strtoul(arg, &end, 0);
	193	if (!end \|\| end == arg \|\| *end \|\| res > 255)
	194	return -1;
	195	*id = res;
	196	return 0;
	197	}
	198
b0d30f7f	199	static char * rtnl_rtscope_tab[256] = {
aba5acdf SH	200	"global",
	201	};
	202
	203	static int rtnl_rtscope_init;
	204
	205	static void rtnl_rtscope_initialize(void)
	206	{
	207	rtnl_rtscope_init = 1;
58ed50ee MY	208	rtnl_rtscope_tab[RT_SCOPE_NOWHERE] = "nowhere";
	209	rtnl_rtscope_tab[RT_SCOPE_HOST] = "host";
	210	rtnl_rtscope_tab[RT_SCOPE_LINK] = "link";
	211	rtnl_rtscope_tab[RT_SCOPE_SITE] = "site";
fb72129b	212	rtnl_tab_initialize(CONFDIR "/rt_scopes",
aba5acdf SH	213	rtnl_rtscope_tab, 256);
	214	}
	215
46ac8a55	216	const char rtnl_rtscope_n2a(int id, char buf, int len)
aba5acdf SH	217	{
	218	if (id<0 \|\| id>=256) {
	219	snprintf(buf, len, "%d", id);
	220	return buf;
	221	}
	222	if (!rtnl_rtscope_tab[id]) {
	223	if (!rtnl_rtscope_init)
	224	rtnl_rtscope_initialize();
	225	}
	226	if (rtnl_rtscope_tab[id])
	227	return rtnl_rtscope_tab[id];
	228	snprintf(buf, len, "%d", id);
	229	return buf;
	230	}
	231
46ac8a55	232	int rtnl_rtscope_a2n(__u32 id, const char arg)
aba5acdf	233	{
46ac8a55	234	static const char *cache = NULL;
aba5acdf SH	235	static unsigned long res;
	236	char *end;
	237	int i;
	238
	239	if (cache && strcmp(cache, arg) == 0) {
	240	*id = res;
	241	return 0;
	242	}
	243
	244	if (!rtnl_rtscope_init)
	245	rtnl_rtscope_initialize();
	246
	247	for (i=0; i<256; i++) {
	248	if (rtnl_rtscope_tab[i] &&
	249	strcmp(rtnl_rtscope_tab[i], arg) == 0) {
	250	cache = rtnl_rtscope_tab[i];
	251	res = i;
	252	*id = res;
	253	return 0;
	254	}
	255	}
	256
	257	res = strtoul(arg, &end, 0);
	258	if (!end \|\| end == arg \|\| *end \|\| res > 255)
	259	return -1;
	260	*id = res;
	261	return 0;
	262	}
	263
	264
aba5acdf SH	265	static char * rtnl_rtrealm_tab[256] = {
	266	"unknown",
	267	};
	268
	269	static int rtnl_rtrealm_init;
	270
	271	static void rtnl_rtrealm_initialize(void)
	272	{
	273	rtnl_rtrealm_init = 1;
fb72129b	274	rtnl_tab_initialize(CONFDIR "/rt_realms",
aba5acdf SH	275	rtnl_rtrealm_tab, 256);
	276	}
	277
46ac8a55	278	const char rtnl_rtrealm_n2a(int id, char buf, int len)
aba5acdf SH	279	{
	280	if (id<0 \|\| id>=256) {
	281	snprintf(buf, len, "%d", id);
	282	return buf;
	283	}
	284	if (!rtnl_rtrealm_tab[id]) {
	285	if (!rtnl_rtrealm_init)
	286	rtnl_rtrealm_initialize();
	287	}
	288	if (rtnl_rtrealm_tab[id])
	289	return rtnl_rtrealm_tab[id];
	290	snprintf(buf, len, "%d", id);
	291	return buf;
	292	}
	293
	294
46ac8a55	295	int rtnl_rtrealm_a2n(__u32 id, const char arg)
aba5acdf SH	296	{
	297	static char *cache = NULL;
	298	static unsigned long res;
	299	char *end;
	300	int i;
	301
	302	if (cache && strcmp(cache, arg) == 0) {
	303	*id = res;
	304	return 0;
	305	}
	306
	307	if (!rtnl_rtrealm_init)
	308	rtnl_rtrealm_initialize();
	309
	310	for (i=0; i<256; i++) {
	311	if (rtnl_rtrealm_tab[i] &&
	312	strcmp(rtnl_rtrealm_tab[i], arg) == 0) {
	313	cache = rtnl_rtrealm_tab[i];
	314	res = i;
	315	*id = res;
	316	return 0;
	317	}
	318	}
	319
	320	res = strtoul(arg, &end, 0);
	321	if (!end \|\| end == arg \|\| *end \|\| res > 255)
	322	return -1;
	323	*id = res;
	324	return 0;
	325	}
	326
	327
81ebcb2a MY	328	static struct rtnl_hash_entry dflt_table_entry = { .name = "default" };
	329	static struct rtnl_hash_entry main_table_entry = { .name = "main" };
	330	static struct rtnl_hash_entry local_table_entry = { .name = "local" };
aba5acdf	331
9c47d877	332	static struct rtnl_hash_entry * rtnl_rttable_hash[256] = {
81ebcb2a MY	333	[RT_TABLE_DEFAULT] = &dflt_table_entry,
	334	[RT_TABLE_MAIN] = &main_table_entry,
	335	[RT_TABLE_LOCAL] = &local_table_entry,
aba5acdf SH	336	};
	337
	338	static int rtnl_rttable_init;
	339
	340	static void rtnl_rttable_initialize(void)
	341	{
81ebcb2a MY	342	int i;
81ebcb2a MY	343
aba5acdf	344	rtnl_rttable_init = 1;
81ebcb2a MY	345	for (i = 0; i < 256; i++) {
	346	if (rtnl_rttable_hash[i])
	347	rtnl_rttable_hash[i]->id = i;
	348	}
fb72129b	349	rtnl_hash_initialize(CONFDIR "/rt_tables",
9c47d877	350	rtnl_rttable_hash, 256);
aba5acdf SH	351	}
aba5acdf SH	352
46ac8a55	353	const char * rtnl_rttable_n2a(__u32 id, char *buf, int len)
aba5acdf	354	{
9c47d877 PM	355	struct rtnl_hash_entry *entry;
9c47d877 PM	356
887a5d00	357	if (id > RT_TABLE_MAX) {
9c47d877	358	snprintf(buf, len, "%u", id);
aba5acdf SH	359	return buf;
aba5acdf SH	360	}
9c47d877 PM	361	if (!rtnl_rttable_init)
	362	rtnl_rttable_initialize();
	363	entry = rtnl_rttable_hash[id & 255];
	364	while (entry && entry->id != id)
	365	entry = entry->next;
	366	if (entry)
	367	return entry->name;
	368	snprintf(buf, len, "%u", id);
aba5acdf SH	369	return buf;
	370	}
	371
46ac8a55	372	int rtnl_rttable_a2n(__u32 id, const char arg)
aba5acdf	373	{
46ac8a55	374	static const char *cache = NULL;
aba5acdf	375	static unsigned long res;
9c47d877	376	struct rtnl_hash_entry *entry;
aba5acdf	377	char *end;
34e95647	378	__u32 i;
aba5acdf SH	379
	380	if (cache && strcmp(cache, arg) == 0) {
	381	*id = res;
	382	return 0;
	383	}
	384
	385	if (!rtnl_rttable_init)
	386	rtnl_rttable_initialize();
	387
	388	for (i=0; i<256; i++) {
9c47d877 PM	389	entry = rtnl_rttable_hash[i];
	390	while (entry && strcmp(entry->name, arg))
	391	entry = entry->next;
	392	if (entry) {
	393	cache = entry->name;
	394	res = entry->id;
aba5acdf SH	395	*id = res;
	396	return 0;
	397	}
	398	}
	399
	400	i = strtoul(arg, &end, 0);
9c47d877	401	if (!end \|\| end == arg \|\| *end \|\| i > RT_TABLE_MAX)
aba5acdf SH	402	return -1;
	403	*id = i;
	404	return 0;
	405	}
	406
	407
	408	static char * rtnl_rtdsfield_tab[256] = {
	409	"0",
	410	};
	411
	412	static int rtnl_rtdsfield_init;
	413
	414	static void rtnl_rtdsfield_initialize(void)
	415	{
	416	rtnl_rtdsfield_init = 1;
fb72129b	417	rtnl_tab_initialize(CONFDIR "/rt_dsfield",
aba5acdf SH	418	rtnl_rtdsfield_tab, 256);
	419	}
	420
46ac8a55	421	const char rtnl_dsfield_n2a(int id, char buf, int len)
aba5acdf SH	422	{
	423	if (id<0 \|\| id>=256) {
	424	snprintf(buf, len, "%d", id);
	425	return buf;
	426	}
	427	if (!rtnl_rtdsfield_tab[id]) {
	428	if (!rtnl_rtdsfield_init)
	429	rtnl_rtdsfield_initialize();
	430	}
	431	if (rtnl_rtdsfield_tab[id])
	432	return rtnl_rtdsfield_tab[id];
	433	snprintf(buf, len, "0x%02x", id);
	434	return buf;
	435	}
	436
	437
46ac8a55	438	int rtnl_dsfield_a2n(__u32 id, const char arg)
aba5acdf SH	439	{
	440	static char *cache = NULL;
	441	static unsigned long res;
	442	char *end;
	443	int i;
	444
	445	if (cache && strcmp(cache, arg) == 0) {
	446	*id = res;
	447	return 0;
	448	}
	449
	450	if (!rtnl_rtdsfield_init)
	451	rtnl_rtdsfield_initialize();
	452
	453	for (i=0; i<256; i++) {
	454	if (rtnl_rtdsfield_tab[i] &&
	455	strcmp(rtnl_rtdsfield_tab[i], arg) == 0) {
	456	cache = rtnl_rtdsfield_tab[i];
	457	res = i;
	458	*id = res;
	459	return 0;
	460	}
	461	}
	462
	463	res = strtoul(arg, &end, 16);
	464	if (!end \|\| end == arg \|\| *end \|\| res > 255)
	465	return -1;
	466	*id = res;
	467	return 0;
	468	}
	469
ac694c33 VD	470
	471	static struct rtnl_hash_entry dflt_group_entry = { .id = 0, .name = "default" };
	472
	473	static struct rtnl_hash_entry * rtnl_group_hash[256] = {
	474	[0] = &dflt_group_entry,
	475	};
	476
	477	static int rtnl_group_init;
	478
	479	static void rtnl_group_initialize(void)
	480	{
	481	rtnl_group_init = 1;
4e5615b3	482	rtnl_hash_initialize(CONFDIR "/group",
ac694c33 VD	483	rtnl_group_hash, 256);
	484	}
	485
46ac8a55	486	int rtnl_group_a2n(int id, const char arg)
ac694c33	487	{
46ac8a55	488	static const char *cache = NULL;
ac694c33 VD	489	static unsigned long res;
	490	struct rtnl_hash_entry *entry;
	491	char *end;
	492	int i;
	493
	494	if (cache && strcmp(cache, arg) == 0) {
	495	*id = res;
	496	return 0;
	497	}
	498
	499	if (!rtnl_group_init)
	500	rtnl_group_initialize();
	501
	502	for (i=0; i<256; i++) {
	503	entry = rtnl_group_hash[i];
	504	while (entry && strcmp(entry->name, arg))
	505	entry = entry->next;
	506	if (entry) {
	507	cache = entry->name;
	508	res = entry->id;
	509	*id = res;
	510	return 0;
	511	}
	512	}
	513
	514	i = strtol(arg, &end, 0);
	515	if (!end \|\| end == arg \|\| *end \|\| i < 0)
	516	return -1;
	517	*id = i;
	518	return 0;
	519	}
c4fdf75d ST	520
	521	const char rtnl_group_n2a(int id, char buf, int len)
	522	{
	523	struct rtnl_hash_entry *entry;
	524	int i;
	525
	526	if (!rtnl_group_init)
	527	rtnl_group_initialize();
	528
	529	for (i=0; i<256; i++) {
	530	entry = rtnl_group_hash[i];
	531	if (entry && entry->id == id) {
	532	return entry->name;
	533	}
	534	}
	535
	536	snprintf(buf, len, "%d", id);
	537	return buf;
	538	}
eef43b50	539
	540	static char *nl_proto_tab[256] = {
	541	[NETLINK_ROUTE] = "rtnl",
	542	[NETLINK_UNUSED] = "unused",
	543	[NETLINK_USERSOCK] = "usersock",
	544	[NETLINK_FIREWALL] = "fw",
	545	[NETLINK_SOCK_DIAG] = "tcpdiag",
	546	[NETLINK_NFLOG] = "nflog",
	547	[NETLINK_XFRM] = "xfrm",
	548	[NETLINK_SELINUX] = "selinux",
	549	[NETLINK_ISCSI] = "iscsi",
	550	[NETLINK_AUDIT] = "audit",
	551	[NETLINK_FIB_LOOKUP] = "fiblookup",
	552	[NETLINK_CONNECTOR] = "connector",
	553	[NETLINK_NETFILTER] = "nft",
	554	[NETLINK_IP6_FW] = "ip6fw",
	555	[NETLINK_DNRTMSG] = "dec-rt",
	556	[NETLINK_KOBJECT_UEVENT] = "uevent",
	557	[NETLINK_GENERIC] = "genl",
	558	[NETLINK_SCSITRANSPORT] = "scsi-trans",
	559	[NETLINK_ECRYPTFS] = "ecryptfs",
	560	[NETLINK_RDMA] = "rdma",
	561	[NETLINK_CRYPTO] = "crypto",
	562	};
	563
	564	static int nl_proto_init;
	565
	566	static void nl_proto_initialize(void)
	567	{
	568	nl_proto_init = 1;
	569	rtnl_tab_initialize(CONFDIR "/nl_protos",
	570	nl_proto_tab, 256);
	571	}
	572
	573	const char nl_proto_n2a(int id, char buf, int len)
	574	{
	575	if (id < 0 \|\| id >= 256) {
	576	snprintf(buf, len, "%u", id);
	577	return buf;
	578	}
	579
	580	if (!nl_proto_init)
	581	nl_proto_initialize();
	582
	583	if (nl_proto_tab[id])
	584	return nl_proto_tab[id];
	585
	586	snprintf(buf, len, "%u", id);
	587	return buf;
	588	}
	589
	590	int nl_proto_a2n(__u32 id, const char arg)
	591	{
	592	static char *cache = NULL;
	593	static unsigned long res;
	594	char *end;
	595	int i;
	596
	597	if (cache && strcmp(cache, arg) == 0) {
	598	*id = res;
	599	return 0;
	600	}
	601
	602	if (!nl_proto_init)
603	nl_proto_initialize();
604
605	for (i = 0; i < 256; i++) {
606	if (nl_proto_tab[i] &&
607	strcmp(nl_proto_tab[i], arg) == 0) {
608	cache = nl_proto_tab[i];
609	res = i;
610	*id = res;
611	return 0;
612	}
613	}
614
615	res = strtoul(arg, &end, 0);
616	if (!end \|\| end == arg \|\| *end \|\| res > 255)
617	return -1;
618	*id = res;
619	return 0;
620	}