4 * Copyright(c) 2010-2012 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.
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14 * notice, this list of conditions and the following disclaimer in
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29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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36 * Copyright (c) 2009, Olivier MATZ <zer0@droids-corp.org>
37 * All rights reserved.
38 * Redistribution and use in source and binary forms, with or without
39 * modification, are permitted provided that the following conditions are met:
41 * * Redistributions of source code must retain the above copyright
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47 * names of its contributors may be used to endorse or promote products
48 * derived from this software without specific prior written permission.
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57 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
58 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
59 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
63 * For inet_ntop() functions:
65 * Copyright (c) 1996 by Internet Software Consortium.
67 * Permission to use, copy, modify, and distribute this software for any
68 * purpose with or without fee is hereby granted, provided that the above
69 * copyright notice and this permission notice appear in all copies.
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72 * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
73 * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
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75 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
76 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
77 * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
89 #include <netinet/in.h>
91 #include <net/socket.h>
94 #include <rte_string_fns.h>
96 #include "cmdline_parse.h"
97 #include "cmdline_parse_ipaddr.h"
99 struct cmdline_token_ops cmdline_token_ipaddr_ops = {
100 .parse = cmdline_parse_ipaddr,
101 .complete_get_nb = NULL,
102 .complete_get_elt = NULL,
103 .get_help = cmdline_get_help_ipaddr,
110 * WARNING: Don't even consider trying to compile this on a system where
111 * sizeof(int) < 4. sizeof(int) > 4 is fine; all the world's not a VAX.
114 static int inet_pton4(const char *src, unsigned char *dst);
115 static int inet_pton6(const char *src, unsigned char *dst);
118 * inet_pton(af, src, dst)
119 * convert from presentation format (which usually means ASCII printable)
120 * to network format (which is usually some kind of binary format).
122 * 1 if the address was valid for the specified address family
123 * 0 if the address wasn't valid (`dst' is untouched in this case)
124 * -1 if some other error occurred (`dst' is untouched in this case, too)
129 my_inet_pton(int af, const char *src, void *dst)
133 return (inet_pton4(src, dst));
135 return (inet_pton6(src, dst));
137 errno = EAFNOSUPPORT;
144 * inet_pton4(src, dst)
145 * like inet_aton() but without all the hexadecimal and shorthand.
147 * 1 if `src' is a valid dotted quad, else 0.
149 * does not touch `dst' unless it's returning 1.
154 inet_pton4(const char *src, unsigned char *dst)
156 static const char digits[] = "0123456789";
157 int saw_digit, octets, ch;
158 unsigned char tmp[INADDRSZ], *tp;
163 while ((ch = *src++) != '\0') {
166 if ((pch = strchr(digits, ch)) != NULL) {
167 unsigned int new = *tp * 10 + (pch - digits);
176 *tp = (unsigned char)new;
177 } else if (ch == '.' && saw_digit) {
188 memcpy(dst, tmp, INADDRSZ);
193 * inet_pton6(src, dst)
194 * convert presentation level address to network order binary form.
196 * 1 if `src' is a valid [RFC1884 2.2] address, else 0.
198 * (1) does not touch `dst' unless it's returning 1.
199 * (2) :: in a full address is silently ignored.
201 * inspired by Mark Andrews.
206 inet_pton6(const char *src, unsigned char *dst)
208 static const char xdigits_l[] = "0123456789abcdef",
209 xdigits_u[] = "0123456789ABCDEF";
210 unsigned char tmp[IN6ADDRSZ], *tp, *endp, *colonp;
211 const char *xdigits, *curtok;
212 int ch, saw_xdigit, count_xdigit;
215 memset((tp = tmp), '\0', IN6ADDRSZ);
216 endp = tp + IN6ADDRSZ;
218 /* Leading :: requires some special handling. */
223 saw_xdigit = count_xdigit = 0;
225 while ((ch = *src++) != '\0') {
228 if ((pch = strchr((xdigits = xdigits_l), ch)) == NULL)
229 pch = strchr((xdigits = xdigits_u), ch);
231 if (count_xdigit >= 4)
234 val |= (pch - xdigits);
248 } else if (*src == '\0') {
251 if (tp + sizeof(int16_t) > endp)
253 *tp++ = (unsigned char) ((val >> 8) & 0xff);
254 *tp++ = (unsigned char) (val & 0xff);
260 if (ch == '.' && ((tp + INADDRSZ) <= endp) &&
261 inet_pton4(curtok, tp) > 0) {
265 break; /* '\0' was seen by inet_pton4(). */
270 if (tp + sizeof(int16_t) > endp)
272 *tp++ = (unsigned char) ((val >> 8) & 0xff);
273 *tp++ = (unsigned char) (val & 0xff);
275 if (colonp != NULL) {
277 * Since some memmove()'s erroneously fail to handle
278 * overlapping regions, we'll do the shift by hand.
280 const int n = tp - colonp;
283 for (i = 1; i <= n; i++) {
284 endp[- i] = colonp[n - i];
291 memcpy(dst, tmp, IN6ADDRSZ);
296 cmdline_parse_ipaddr(cmdline_parse_token_hdr_t *tk, const char *buf, void *res)
298 struct cmdline_token_ipaddr *tk2 = (struct cmdline_token_ipaddr *)tk;
299 unsigned int token_len = 0;
300 char ip_str[INET6_ADDRSTRLEN+4+1]; /* '+4' is for prefixlen (if any) */
301 cmdline_ipaddr_t ipaddr;
302 char *prefix, *prefix_end;
308 while (!cmdline_isendoftoken(buf[token_len]))
311 /* if token is too big... */
312 if (token_len >= INET6_ADDRSTRLEN+4)
315 rte_snprintf(ip_str, token_len+1, "%s", buf);
317 /* convert the network prefix */
318 if (tk2->ipaddr_data.flags & CMDLINE_IPADDR_NETWORK) {
319 prefix = strrchr(ip_str, '/');
325 prefixlen = strtol(prefix, &prefix_end, 10);
326 if (errno || (*prefix_end != '\0') )
328 ipaddr.prefixlen = prefixlen;
331 ipaddr.prefixlen = 0;
334 /* convert the IP addr */
335 if ((tk2->ipaddr_data.flags & CMDLINE_IPADDR_V4) &&
336 my_inet_pton(AF_INET, ip_str, &ipaddr.addr.ipv4) == 1) {
337 ipaddr.family = AF_INET;
339 memcpy(res, &ipaddr, sizeof(ipaddr));
342 if ((tk2->ipaddr_data.flags & CMDLINE_IPADDR_V6) &&
343 my_inet_pton(AF_INET6, ip_str, &ipaddr.addr.ipv6) == 1) {
344 ipaddr.family = AF_INET6;
346 memcpy(res, &ipaddr, sizeof(ipaddr));
353 int cmdline_get_help_ipaddr(cmdline_parse_token_hdr_t *tk, char *dstbuf,
356 struct cmdline_token_ipaddr *tk2 = (struct cmdline_token_ipaddr *)tk;
358 switch (tk2->ipaddr_data.flags) {
359 case CMDLINE_IPADDR_V4:
360 rte_snprintf(dstbuf, size, "IPv4");
362 case CMDLINE_IPADDR_V6:
363 rte_snprintf(dstbuf, size, "IPv6");
365 case CMDLINE_IPADDR_V4|CMDLINE_IPADDR_V6:
366 rte_snprintf(dstbuf, size, "IPv4/IPv6");
368 case CMDLINE_IPADDR_NETWORK|CMDLINE_IPADDR_V4:
369 rte_snprintf(dstbuf, size, "IPv4 network");
371 case CMDLINE_IPADDR_NETWORK|CMDLINE_IPADDR_V6:
372 rte_snprintf(dstbuf, size, "IPv6 network");
374 case CMDLINE_IPADDR_NETWORK|CMDLINE_IPADDR_V4|CMDLINE_IPADDR_V6:
375 rte_snprintf(dstbuf, size, "IPv4/IPv6 network");
378 rte_snprintf(dstbuf, size, "IPaddr (bad flags)");