4 * Copyright(c) 2010-2013 Intel Corporation. All rights reserved.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
11 * * Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * * Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in
15 * the documentation and/or other materials provided with the
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18 * contributors may be used to endorse or promote products derived
19 * from this software without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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25 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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27 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
35 * Copyright (c) 2009, Olivier MATZ <zer0@droids-corp.org>
36 * All rights reserved.
37 * Redistribution and use in source and binary forms, with or without
38 * modification, are permitted provided that the following conditions are met:
40 * * Redistributions of source code must retain the above copyright
41 * notice, this list of conditions and the following disclaimer.
42 * * Redistributions in binary form must reproduce the above copyright
43 * notice, this list of conditions and the following disclaimer in the
44 * documentation and/or other materials provided with the distribution.
45 * * Neither the name of the University of California, Berkeley nor the
46 * names of its contributors may be used to endorse or promote products
47 * derived from this software without specific prior written permission.
49 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND ANY
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52 * DISCLAIMED. IN NO EVENT SHALL THE REGENTS AND CONTRIBUTORS BE LIABLE FOR ANY
53 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
54 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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56 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
57 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
58 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
62 * For inet_ntop() functions:
64 * Copyright (c) 1996 by Internet Software Consortium.
66 * Permission to use, copy, modify, and distribute this software for any
67 * purpose with or without fee is hereby granted, provided that the above
68 * copyright notice and this permission notice appear in all copies.
70 * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
71 * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
72 * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
73 * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
74 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
75 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
76 * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
88 #include <netinet/in.h>
90 #include <net/socket.h>
93 #include <rte_string_fns.h>
95 #include "cmdline_parse.h"
96 #include "cmdline_parse_ipaddr.h"
98 struct cmdline_token_ops cmdline_token_ipaddr_ops = {
99 .parse = cmdline_parse_ipaddr,
100 .complete_get_nb = NULL,
101 .complete_get_elt = NULL,
102 .get_help = cmdline_get_help_ipaddr,
107 #define PREFIXMAX 128
108 #define V4PREFIXMAX 32
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 = 0, *endp = 0, *colonp = 0;
212 const char *xdigits = 0, *curtok = 0;
213 int ch = 0, saw_xdigit = 0, count_xdigit = 0;
214 unsigned int val = 0;
215 unsigned dbloct_count = 0;
217 memset((tp = tmp), '\0', IN6ADDRSZ);
218 endp = tp + IN6ADDRSZ;
220 /* Leading :: requires some special handling. */
225 saw_xdigit = count_xdigit = 0;
228 while ((ch = *src++) != '\0') {
231 if ((pch = strchr((xdigits = xdigits_l), ch)) == NULL)
232 pch = strchr((xdigits = xdigits_u), ch);
234 if (count_xdigit >= 4)
237 val |= (pch - xdigits);
251 } else if (*src == '\0') {
254 if (tp + sizeof(int16_t) > endp)
256 *tp++ = (unsigned char) ((val >> 8) & 0xff);
257 *tp++ = (unsigned char) (val & 0xff);
264 if (ch == '.' && ((tp + INADDRSZ) <= endp) &&
265 inet_pton4(curtok, tp) > 0) {
269 break; /* '\0' was seen by inet_pton4(). */
274 if (tp + sizeof(int16_t) > endp)
276 *tp++ = (unsigned char) ((val >> 8) & 0xff);
277 *tp++ = (unsigned char) (val & 0xff);
280 if (colonp != NULL) {
281 /* if we already have 8 double octets, having a colon means error */
282 if (dbloct_count == 8)
286 * Since some memmove()'s erroneously fail to handle
287 * overlapping regions, we'll do the shift by hand.
289 const int n = tp - colonp;
292 for (i = 1; i <= n; i++) {
293 endp[- i] = colonp[n - i];
300 memcpy(dst, tmp, IN6ADDRSZ);
305 cmdline_parse_ipaddr(cmdline_parse_token_hdr_t *tk, const char *buf, void *res)
307 struct cmdline_token_ipaddr *tk2;
308 unsigned int token_len = 0;
309 char ip_str[INET6_ADDRSTRLEN+4+1]; /* '+4' is for prefixlen (if any) */
310 cmdline_ipaddr_t ipaddr;
311 char *prefix, *prefix_end;
314 if (!buf || !tk || ! *buf)
317 tk2 = (struct cmdline_token_ipaddr *)tk;
319 while (!cmdline_isendoftoken(buf[token_len]))
322 /* if token is too big... */
323 if (token_len >= INET6_ADDRSTRLEN+4)
326 rte_snprintf(ip_str, token_len+1, "%s", buf);
328 /* convert the network prefix */
329 if (tk2->ipaddr_data.flags & CMDLINE_IPADDR_NETWORK) {
330 prefix = strrchr(ip_str, '/');
336 prefixlen = strtol(prefix, &prefix_end, 10);
337 if (errno || (*prefix_end != '\0')
338 || prefixlen < 0 || prefixlen > PREFIXMAX)
340 ipaddr.prefixlen = prefixlen;
343 ipaddr.prefixlen = 0;
346 /* convert the IP addr */
347 if ((tk2->ipaddr_data.flags & CMDLINE_IPADDR_V4) &&
348 my_inet_pton(AF_INET, ip_str, &ipaddr.addr.ipv4) == 1 &&
349 prefixlen <= V4PREFIXMAX) {
350 ipaddr.family = AF_INET;
352 memcpy(res, &ipaddr, sizeof(ipaddr));
355 if ((tk2->ipaddr_data.flags & CMDLINE_IPADDR_V6) &&
356 my_inet_pton(AF_INET6, ip_str, &ipaddr.addr.ipv6) == 1) {
357 ipaddr.family = AF_INET6;
359 memcpy(res, &ipaddr, sizeof(ipaddr));
366 int cmdline_get_help_ipaddr(cmdline_parse_token_hdr_t *tk, char *dstbuf,
369 struct cmdline_token_ipaddr *tk2;
374 tk2 = (struct cmdline_token_ipaddr *)tk;
376 switch (tk2->ipaddr_data.flags) {
377 case CMDLINE_IPADDR_V4:
378 rte_snprintf(dstbuf, size, "IPv4");
380 case CMDLINE_IPADDR_V6:
381 rte_snprintf(dstbuf, size, "IPv6");
383 case CMDLINE_IPADDR_V4|CMDLINE_IPADDR_V6:
384 rte_snprintf(dstbuf, size, "IPv4/IPv6");
386 case CMDLINE_IPADDR_NETWORK|CMDLINE_IPADDR_V4:
387 rte_snprintf(dstbuf, size, "IPv4 network");
389 case CMDLINE_IPADDR_NETWORK|CMDLINE_IPADDR_V6:
390 rte_snprintf(dstbuf, size, "IPv6 network");
392 case CMDLINE_IPADDR_NETWORK|CMDLINE_IPADDR_V4|CMDLINE_IPADDR_V6:
393 rte_snprintf(dstbuf, size, "IPv4/IPv6 network");
396 rte_snprintf(dstbuf, size, "IPaddr (bad flags)");