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/* Copyright 2007-2010 Jozsef Kadlecsik (kadlec@netfilter.org)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <libipset/utils.h> /* STRNEQ */
#include <libipset/icmp.h> /* prototypes */
struct icmp_names {
const char *name;
uint8_t type, code;
};
static const struct icmp_names icmp_typecodes[] = {
{ "echo-reply", 0, 0 },
{ "pong", 0, 0 },
{ "network-unreachable", 3, 0 },
{ "host-unreachable", 3, 1 },
{ "protocol-unreachable", 3, 2 },
{ "port-unreachable", 3, 3 },
{ "fragmentation-needed", 3, 4 },
{ "source-route-failed", 3, 5 },
{ "network-unknown", 3, 6 },
{ "host-unknown", 3, 7 },
{ "network-prohibited", 3, 9 },
{ "host-prohibited", 3, 10 },
{ "TOS-network-unreachable", 3, 11 },
{ "TOS-host-unreachable", 3, 12 },
{ "communication-prohibited", 3, 13 },
{ "host-precedence-violation", 3, 14 },
{ "precedence-cutoff", 3, 15 },
{ "source-quench", 4, 0 },
{ "network-redirect", 5, 0 },
{ "host-redirect", 5, 1 },
{ "TOS-network-redirect", 5, 2 },
{ "TOS-host-redirect", 5, 3 },
{ "echo-request", 8, 0 },
{ "ping", 8, 0 },
{ "router-advertisement", 9, 0 },
{ "router-solicitation", 10, 0 },
{ "ttl-zero-during-transit", 11, 0 },
{ "ttl-zero-during-reassembly", 11, 1 },
{ "ip-header-bad", 12, 0 },
{ "required-option-missing", 12, 1 },
{ "timestamp-request", 13, 0 },
{ "timestamp-reply", 14, 0 },
{ "address-mask-request", 17, 0 },
{ "address-mask-reply", 18, 0 },
};
const char *id_to_icmp(uint8_t id)
{
return id < ARRAY_SIZE(icmp_typecodes) ? icmp_typecodes[id].name : NULL;
}
const char *icmp_to_name(uint8_t type, uint8_t code)
{
unsigned int i;
for (i = 0; i < ARRAY_SIZE(icmp_typecodes); i++)
if (icmp_typecodes[i].type == type &&
icmp_typecodes[i].code == code)
return icmp_typecodes[i].name;
return NULL;
}
int name_to_icmp(const char *str, uint16_t *typecode)
{
unsigned int i;
for (i = 0; i < ARRAY_SIZE(icmp_typecodes); i++)
if (STRNCASEQ(icmp_typecodes[i].name, str, strlen(str))) {
*typecode = (icmp_typecodes[i].type << 8) |
icmp_typecodes[i].code;
return 0;
}
return -1;
}
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