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/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2010-2014 Intel Corporation.
* Copyright (c) 2009, Olivier MATZ <[email protected]>
* All rights reserved.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <rte_string_fns.h>
#include "cmdline_parse.h"
#include "cmdline_parse_ipaddr.h"
struct cmdline_token_ops cmdline_token_ipaddr_ops = {
.parse = cmdline_parse_ipaddr,
.complete_get_nb = NULL,
.complete_get_elt = NULL,
.get_help = cmdline_get_help_ipaddr,
};
#define PREFIXMAX 128
#define V4PREFIXMAX 32
int
cmdline_parse_ipaddr(cmdline_parse_token_hdr_t *tk, const char *buf, void *res,
unsigned ressize)
{
struct cmdline_token_ipaddr *tk2;
unsigned int token_len = 0;
char ip_str[INET6_ADDRSTRLEN+4+1]; /* '+4' is for prefixlen (if any) */
cmdline_ipaddr_t ipaddr;
char *prefix, *prefix_end;
long prefixlen = 0;
if (res && ressize < sizeof(cmdline_ipaddr_t))
return -1;
if (!buf || !tk || ! *buf)
return -1;
tk2 = (struct cmdline_token_ipaddr *)tk;
while (!cmdline_isendoftoken(buf[token_len]))
token_len++;
/* if token is too big... */
if (token_len >= INET6_ADDRSTRLEN+4)
return -1;
strlcpy(ip_str, buf, token_len + 1);
/* convert the network prefix */
if (tk2->ipaddr_data.flags & CMDLINE_IPADDR_NETWORK) {
prefix = strrchr(ip_str, '/');
if (prefix == NULL)
return -1;
*prefix = '\0';
prefix ++;
errno = 0;
prefixlen = strtol(prefix, &prefix_end, 10);
if (errno || (*prefix_end != '\0')
|| prefixlen < 0 || prefixlen > PREFIXMAX)
return -1;
ipaddr.prefixlen = prefixlen;
}
else {
ipaddr.prefixlen = 0;
}
/* convert the IP addr */
if ((tk2->ipaddr_data.flags & CMDLINE_IPADDR_V4) &&
inet_pton(AF_INET, ip_str, &ipaddr.addr.ipv4) == 1 &&
prefixlen <= V4PREFIXMAX) {
ipaddr.family = AF_INET;
if (res)
memcpy(res, &ipaddr, sizeof(ipaddr));
return token_len;
}
if ((tk2->ipaddr_data.flags & CMDLINE_IPADDR_V6) &&
inet_pton(AF_INET6, ip_str, &ipaddr.addr.ipv6) == 1) {
ipaddr.family = AF_INET6;
if (res)
memcpy(res, &ipaddr, sizeof(ipaddr));
return token_len;
}
return -1;
}
int cmdline_get_help_ipaddr(cmdline_parse_token_hdr_t *tk, char *dstbuf,
unsigned int size)
{
struct cmdline_token_ipaddr *tk2;
if (!tk || !dstbuf)
return -1;
tk2 = (struct cmdline_token_ipaddr *)tk;
switch (tk2->ipaddr_data.flags) {
case CMDLINE_IPADDR_V4:
snprintf(dstbuf, size, "IPv4");
break;
case CMDLINE_IPADDR_V6:
snprintf(dstbuf, size, "IPv6");
break;
case CMDLINE_IPADDR_V4|CMDLINE_IPADDR_V6:
snprintf(dstbuf, size, "IPv4/IPv6");
break;
case CMDLINE_IPADDR_NETWORK|CMDLINE_IPADDR_V4:
snprintf(dstbuf, size, "IPv4 network");
break;
case CMDLINE_IPADDR_NETWORK|CMDLINE_IPADDR_V6:
snprintf(dstbuf, size, "IPv6 network");
break;
case CMDLINE_IPADDR_NETWORK|CMDLINE_IPADDR_V4|CMDLINE_IPADDR_V6:
snprintf(dstbuf, size, "IPv4/IPv6 network");
break;
default:
snprintf(dstbuf, size, "IPaddr (bad flags)");
break;
}
return 0;
}
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