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/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2010-2014 Intel Corporation.
* Copyright (c) 2009, Olivier MATZ <zer0@droids-corp.org>
* All rights reserved.
*/
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <errno.h>
#include <inttypes.h>
#include <ctype.h>
#include <string.h>
#include <sys/types.h>
#include <net/ethernet.h>
#include <rte_string_fns.h>
#include "cmdline_parse.h"
#include "cmdline_parse_etheraddr.h"
struct cmdline_token_ops cmdline_token_etheraddr_ops = {
.parse = cmdline_parse_etheraddr,
.complete_get_nb = NULL,
.complete_get_elt = NULL,
.get_help = cmdline_get_help_etheraddr,
};
/* the format can be either XX:XX:XX:XX:XX:XX or XXXX:XXXX:XXXX */
#define ETHER_ADDRSTRLENLONG 18
#define ETHER_ADDRSTRLENSHORT 15
#ifdef __linux__
#define ea_oct ether_addr_octet
#else
#define ea_oct octet
#endif
static struct ether_addr *
my_ether_aton(const char *a)
{
int i;
char *end;
unsigned long o[ETHER_ADDR_LEN];
static struct ether_addr ether_addr;
i = 0;
do {
errno = 0;
o[i] = strtoul(a, &end, 16);
if (errno != 0 || end == a || (end[0] != ':' && end[0] != 0))
return NULL;
a = end + 1;
} while (++i != sizeof (o) / sizeof (o[0]) && end[0] != 0);
/* Junk at the end of line */
if (end[0] != 0)
return NULL;
/* Support the format XX:XX:XX:XX:XX:XX */
if (i == ETHER_ADDR_LEN) {
while (i-- != 0) {
if (o[i] > UINT8_MAX)
return NULL;
ether_addr.ea_oct[i] = (uint8_t)o[i];
}
/* Support the format XXXX:XXXX:XXXX */
} else if (i == ETHER_ADDR_LEN / 2) {
while (i-- != 0) {
if (o[i] > UINT16_MAX)
return NULL;
ether_addr.ea_oct[i * 2] = (uint8_t)(o[i] >> 8);
ether_addr.ea_oct[i * 2 + 1] = (uint8_t)(o[i] & 0xff);
}
/* unknown format */
} else
return NULL;
return (struct ether_addr *)ðer_addr;
}
int
cmdline_parse_etheraddr(__attribute__((unused)) cmdline_parse_token_hdr_t *tk,
const char *buf, void *res, unsigned ressize)
{
unsigned int token_len = 0;
char ether_str[ETHER_ADDRSTRLENLONG+1];
struct ether_addr *tmp;
if (res && ressize < sizeof(struct ether_addr))
return -1;
if (!buf || ! *buf)
return -1;
while (!cmdline_isendoftoken(buf[token_len]))
token_len++;
/* if token doesn't match possible string lengths... */
if ((token_len != ETHER_ADDRSTRLENLONG - 1) &&
(token_len != ETHER_ADDRSTRLENSHORT - 1))
return -1;
snprintf(ether_str, token_len+1, "%s", buf);
tmp = my_ether_aton(ether_str);
if (tmp == NULL)
return -1;
if (res)
memcpy(res, tmp, sizeof(struct ether_addr));
return token_len;
}
int
cmdline_get_help_etheraddr(__attribute__((unused)) cmdline_parse_token_hdr_t *tk,
char *dstbuf, unsigned int size)
{
int ret;
ret = snprintf(dstbuf, size, "Ethernet address");
if (ret < 0)
return -1;
return 0;
}
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