4 * Copyright(c) 2010-2012 Intel Corporation. All rights reserved.
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8 * modification, are permitted provided that the following conditions
11 * * Redistributions of source code must retain the above copyright
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14 * notice, this list of conditions and the following disclaimer in
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18 * contributors may be used to endorse or promote products derived
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31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33 * version: DPDK.L.1.2.3-3
37 * Copyright (c) 2009, Olivier MATZ <zer0@droids-corp.org>
38 * All rights reserved.
39 * Redistribution and use in source and binary forms, with or without
40 * modification, are permitted provided that the following conditions are met:
42 * * Redistributions of source code must retain the above copyright
43 * notice, this list of conditions and the following disclaimer.
44 * * Redistributions in binary form must reproduce the above copyright
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48 * names of its contributors may be used to endorse or promote products
49 * derived from this software without specific prior written permission.
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58 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
59 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
60 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
64 * For inet_ntop() functions:
66 * Copyright (c) 1996 by Internet Software Consortium.
68 * Permission to use, copy, modify, and distribute this software for any
69 * purpose with or without fee is hereby granted, provided that the above
70 * copyright notice and this permission notice appear in all copies.
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74 * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
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76 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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78 * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
90 #include <netinet/in.h>
92 #include <net/socket.h>
95 #include <rte_string_fns.h>
97 #include "cmdline_parse.h"
98 #include "cmdline_parse_ipaddr.h"
100 struct cmdline_token_ops cmdline_token_ipaddr_ops = {
101 .parse = cmdline_parse_ipaddr,
102 .complete_get_nb = NULL,
103 .complete_get_elt = NULL,
104 .get_help = cmdline_get_help_ipaddr,
111 * WARNING: Don't even consider trying to compile this on a system where
112 * sizeof(int) < 4. sizeof(int) > 4 is fine; all the world's not a VAX.
115 static int inet_pton4(const char *src, unsigned char *dst);
116 static int inet_pton6(const char *src, unsigned char *dst);
119 * inet_pton(af, src, dst)
120 * convert from presentation format (which usually means ASCII printable)
121 * to network format (which is usually some kind of binary format).
123 * 1 if the address was valid for the specified address family
124 * 0 if the address wasn't valid (`dst' is untouched in this case)
125 * -1 if some other error occurred (`dst' is untouched in this case, too)
130 my_inet_pton(int af, const char *src, void *dst)
134 return (inet_pton4(src, dst));
136 return (inet_pton6(src, dst));
138 errno = EAFNOSUPPORT;
145 * inet_pton4(src, dst)
146 * like inet_aton() but without all the hexadecimal and shorthand.
148 * 1 if `src' is a valid dotted quad, else 0.
150 * does not touch `dst' unless it's returning 1.
155 inet_pton4(const char *src, unsigned char *dst)
157 static const char digits[] = "0123456789";
158 int saw_digit, octets, ch;
159 unsigned char tmp[INADDRSZ], *tp;
164 while ((ch = *src++) != '\0') {
167 if ((pch = strchr(digits, ch)) != NULL) {
168 unsigned int new = *tp * 10 + (pch - digits);
177 *tp = (unsigned char)new;
178 } else if (ch == '.' && saw_digit) {
189 memcpy(dst, tmp, INADDRSZ);
194 * inet_pton6(src, dst)
195 * convert presentation level address to network order binary form.
197 * 1 if `src' is a valid [RFC1884 2.2] address, else 0.
199 * (1) does not touch `dst' unless it's returning 1.
200 * (2) :: in a full address is silently ignored.
202 * inspired by Mark Andrews.
207 inet_pton6(const char *src, unsigned char *dst)
209 static const char xdigits_l[] = "0123456789abcdef",
210 xdigits_u[] = "0123456789ABCDEF";
211 unsigned char tmp[IN6ADDRSZ], *tp, *endp, *colonp;
212 const char *xdigits, *curtok;
213 int ch, saw_xdigit, count_xdigit;
216 memset((tp = tmp), '\0', IN6ADDRSZ);
217 endp = tp + IN6ADDRSZ;
219 /* Leading :: requires some special handling. */
224 saw_xdigit = count_xdigit = 0;
226 while ((ch = *src++) != '\0') {
229 if ((pch = strchr((xdigits = xdigits_l), ch)) == NULL)
230 pch = strchr((xdigits = xdigits_u), ch);
232 if (count_xdigit >= 4)
235 val |= (pch - xdigits);
249 } else if (*src == '\0') {
252 if (tp + sizeof(int16_t) > endp)
254 *tp++ = (unsigned char) ((val >> 8) & 0xff);
255 *tp++ = (unsigned char) (val & 0xff);
261 if (ch == '.' && ((tp + INADDRSZ) <= endp) &&
262 inet_pton4(curtok, tp) > 0) {
266 break; /* '\0' was seen by inet_pton4(). */
271 if (tp + sizeof(int16_t) > endp)
273 *tp++ = (unsigned char) ((val >> 8) & 0xff);
274 *tp++ = (unsigned char) (val & 0xff);
276 if (colonp != NULL) {
278 * Since some memmove()'s erroneously fail to handle
279 * overlapping regions, we'll do the shift by hand.
281 const int n = tp - colonp;
284 for (i = 1; i <= n; i++) {
285 endp[- i] = colonp[n - i];
292 memcpy(dst, tmp, IN6ADDRSZ);
297 cmdline_parse_ipaddr(cmdline_parse_token_hdr_t *tk, const char *buf, void *res)
299 struct cmdline_token_ipaddr *tk2 = (struct cmdline_token_ipaddr *)tk;
300 unsigned int token_len = 0;
301 char ip_str[INET6_ADDRSTRLEN+4+1]; /* '+4' is for prefixlen (if any) */
302 cmdline_ipaddr_t ipaddr;
303 char *prefix, *prefix_end;
309 while (!cmdline_isendoftoken(buf[token_len]))
312 /* if token is too big... */
313 if (token_len >= INET6_ADDRSTRLEN+4)
316 rte_snprintf(ip_str, token_len+1, "%s", buf);
318 /* convert the network prefix */
319 if (tk2->ipaddr_data.flags & CMDLINE_IPADDR_NETWORK) {
320 prefix = strrchr(ip_str, '/');
326 prefixlen = strtol(prefix, &prefix_end, 10);
327 if (errno || (*prefix_end != '\0') )
329 ipaddr.prefixlen = prefixlen;
332 ipaddr.prefixlen = 0;
335 /* convert the IP addr */
336 if ((tk2->ipaddr_data.flags & CMDLINE_IPADDR_V4) &&
337 my_inet_pton(AF_INET, ip_str, &ipaddr.addr.ipv4) == 1) {
338 ipaddr.family = AF_INET;
340 memcpy(res, &ipaddr, sizeof(ipaddr));
343 if ((tk2->ipaddr_data.flags & CMDLINE_IPADDR_V6) &&
344 my_inet_pton(AF_INET6, ip_str, &ipaddr.addr.ipv6) == 1) {
345 ipaddr.family = AF_INET6;
347 memcpy(res, &ipaddr, sizeof(ipaddr));
354 int cmdline_get_help_ipaddr(cmdline_parse_token_hdr_t *tk, char *dstbuf,
357 struct cmdline_token_ipaddr *tk2 = (struct cmdline_token_ipaddr *)tk;
359 switch (tk2->ipaddr_data.flags) {
360 case CMDLINE_IPADDR_V4:
361 rte_snprintf(dstbuf, size, "IPv4");
363 case CMDLINE_IPADDR_V6:
364 rte_snprintf(dstbuf, size, "IPv6");
366 case CMDLINE_IPADDR_V4|CMDLINE_IPADDR_V6:
367 rte_snprintf(dstbuf, size, "IPv4/IPv6");
369 case CMDLINE_IPADDR_NETWORK|CMDLINE_IPADDR_V4:
370 rte_snprintf(dstbuf, size, "IPv4 network");
372 case CMDLINE_IPADDR_NETWORK|CMDLINE_IPADDR_V6:
373 rte_snprintf(dstbuf, size, "IPv6 network");
375 case CMDLINE_IPADDR_NETWORK|CMDLINE_IPADDR_V4|CMDLINE_IPADDR_V6:
376 rte_snprintf(dstbuf, size, "IPv4/IPv6 network");
379 rte_snprintf(dstbuf, size, "IPaddr (bad flags)");