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authorC.J. Collier <cjcollier@linuxfoundation.org>2016-06-14 07:54:47 -0700
committerC.J. Collier <cjcollier@linuxfoundation.org>2016-06-14 07:55:43 -0700
commit5129044dce1f85ce4950f31bcf90f3886466f06a (patch)
tree1c6269614c0c15ffef8451c58ae8f8b30a1bc804 /lib/librte_cmdline/cmdline_parse_ipaddr.c
parente04be89c2409570e0055b2cda60bd11395bb93b0 (diff)
Imported upstream release 16.04
* gbp import-orig ../dpdk-16.04.tar.xz Change-Id: Iac2196db782ba322f6974d8a752acc34ce5024c3 Signed-off-by: C.J. Collier <cjcollier@linuxfoundation.org>
Diffstat (limited to 'lib/librte_cmdline/cmdline_parse_ipaddr.c')
-rw-r--r--lib/librte_cmdline/cmdline_parse_ipaddr.c408
1 files changed, 408 insertions, 0 deletions
diff --git a/lib/librte_cmdline/cmdline_parse_ipaddr.c b/lib/librte_cmdline/cmdline_parse_ipaddr.c
new file mode 100644
index 00000000..d3d3e044
--- /dev/null
+++ b/lib/librte_cmdline/cmdline_parse_ipaddr.c
@@ -0,0 +1,408 @@
+/*-
+ * BSD LICENSE
+ *
+ * Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Intel Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * Copyright (c) 2009, Olivier MATZ <zer0@droids-corp.org>
+ * All rights reserved.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of the University of California, Berkeley nor the
+ * names of its contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE REGENTS AND CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * For inet_ntop() functions:
+ *
+ * Copyright (c) 1996 by Internet Software Consortium.
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
+ * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
+ * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
+ * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
+ * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+ * SOFTWARE.
+ */
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <inttypes.h>
+#include <ctype.h>
+#include <string.h>
+#include <errno.h>
+#include <netinet/in.h>
+#ifndef __linux__
+#ifndef __FreeBSD__
+#include <net/socket.h>
+#else
+#include <sys/socket.h>
+#endif
+#endif
+
+#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 INADDRSZ 4
+#define IN6ADDRSZ 16
+#define PREFIXMAX 128
+#define V4PREFIXMAX 32
+
+/*
+ * WARNING: Don't even consider trying to compile this on a system where
+ * sizeof(int) < 4. sizeof(int) > 4 is fine; all the world's not a VAX.
+ */
+
+static int inet_pton4(const char *src, unsigned char *dst);
+static int inet_pton6(const char *src, unsigned char *dst);
+
+/* int
+ * inet_pton(af, src, dst)
+ * convert from presentation format (which usually means ASCII printable)
+ * to network format (which is usually some kind of binary format).
+ * return:
+ * 1 if the address was valid for the specified address family
+ * 0 if the address wasn't valid (`dst' is untouched in this case)
+ * -1 if some other error occurred (`dst' is untouched in this case, too)
+ * author:
+ * Paul Vixie, 1996.
+ */
+static int
+my_inet_pton(int af, const char *src, void *dst)
+{
+ switch (af) {
+ case AF_INET:
+ return inet_pton4(src, dst);
+ case AF_INET6:
+ return inet_pton6(src, dst);
+ default:
+ errno = EAFNOSUPPORT;
+ return -1;
+ }
+ /* NOTREACHED */
+}
+
+/* int
+ * inet_pton4(src, dst)
+ * like inet_aton() but without all the hexadecimal and shorthand.
+ * return:
+ * 1 if `src' is a valid dotted quad, else 0.
+ * notice:
+ * does not touch `dst' unless it's returning 1.
+ * author:
+ * Paul Vixie, 1996.
+ */
+static int
+inet_pton4(const char *src, unsigned char *dst)
+{
+ static const char digits[] = "0123456789";
+ int saw_digit, octets, ch;
+ unsigned char tmp[INADDRSZ], *tp;
+
+ saw_digit = 0;
+ octets = 0;
+ *(tp = tmp) = 0;
+ while ((ch = *src++) != '\0') {
+ const char *pch;
+
+ if ((pch = strchr(digits, ch)) != NULL) {
+ unsigned int new = *tp * 10 + (pch - digits);
+
+ if (new > 255)
+ return 0;
+ if (! saw_digit) {
+ if (++octets > 4)
+ return 0;
+ saw_digit = 1;
+ }
+ *tp = (unsigned char)new;
+ } else if (ch == '.' && saw_digit) {
+ if (octets == 4)
+ return 0;
+ *++tp = 0;
+ saw_digit = 0;
+ } else
+ return 0;
+ }
+ if (octets < 4)
+ return 0;
+
+ memcpy(dst, tmp, INADDRSZ);
+ return 1;
+}
+
+/* int
+ * inet_pton6(src, dst)
+ * convert presentation level address to network order binary form.
+ * return:
+ * 1 if `src' is a valid [RFC1884 2.2] address, else 0.
+ * notice:
+ * (1) does not touch `dst' unless it's returning 1.
+ * (2) :: in a full address is silently ignored.
+ * credit:
+ * inspired by Mark Andrews.
+ * author:
+ * Paul Vixie, 1996.
+ */
+static int
+inet_pton6(const char *src, unsigned char *dst)
+{
+ static const char xdigits_l[] = "0123456789abcdef",
+ xdigits_u[] = "0123456789ABCDEF";
+ unsigned char tmp[IN6ADDRSZ], *tp = 0, *endp = 0, *colonp = 0;
+ const char *xdigits = 0, *curtok = 0;
+ int ch = 0, saw_xdigit = 0, count_xdigit = 0;
+ unsigned int val = 0;
+ unsigned dbloct_count = 0;
+
+ memset((tp = tmp), '\0', IN6ADDRSZ);
+ endp = tp + IN6ADDRSZ;
+ colonp = NULL;
+ /* Leading :: requires some special handling. */
+ if (*src == ':')
+ if (*++src != ':')
+ return 0;
+ curtok = src;
+ saw_xdigit = count_xdigit = 0;
+ val = 0;
+
+ while ((ch = *src++) != '\0') {
+ const char *pch;
+
+ if ((pch = strchr((xdigits = xdigits_l), ch)) == NULL)
+ pch = strchr((xdigits = xdigits_u), ch);
+ if (pch != NULL) {
+ if (count_xdigit >= 4)
+ return 0;
+ val <<= 4;
+ val |= (pch - xdigits);
+ if (val > 0xffff)
+ return 0;
+ saw_xdigit = 1;
+ count_xdigit++;
+ continue;
+ }
+ if (ch == ':') {
+ curtok = src;
+ if (!saw_xdigit) {
+ if (colonp)
+ return 0;
+ colonp = tp;
+ continue;
+ } else if (*src == '\0') {
+ return 0;
+ }
+ if (tp + sizeof(int16_t) > endp)
+ return 0;
+ *tp++ = (unsigned char) ((val >> 8) & 0xff);
+ *tp++ = (unsigned char) (val & 0xff);
+ saw_xdigit = 0;
+ count_xdigit = 0;
+ val = 0;
+ dbloct_count++;
+ continue;
+ }
+ if (ch == '.' && ((tp + INADDRSZ) <= endp) &&
+ inet_pton4(curtok, tp) > 0) {
+ tp += INADDRSZ;
+ saw_xdigit = 0;
+ dbloct_count += 2;
+ break; /* '\0' was seen by inet_pton4(). */
+ }
+ return 0;
+ }
+ if (saw_xdigit) {
+ if (tp + sizeof(int16_t) > endp)
+ return 0;
+ *tp++ = (unsigned char) ((val >> 8) & 0xff);
+ *tp++ = (unsigned char) (val & 0xff);
+ dbloct_count++;
+ }
+ if (colonp != NULL) {
+ /* if we already have 8 double octets, having a colon means error */
+ if (dbloct_count == 8)
+ return 0;
+
+ /*
+ * Since some memmove()'s erroneously fail to handle
+ * overlapping regions, we'll do the shift by hand.
+ */
+ const int n = tp - colonp;
+ int i;
+
+ for (i = 1; i <= n; i++) {
+ endp[- i] = colonp[n - i];
+ colonp[n - i] = 0;
+ }
+ tp = endp;
+ }
+ if (tp != endp)
+ return 0;
+ memcpy(dst, tmp, IN6ADDRSZ);
+ return 1;
+}
+
+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;
+
+ snprintf(ip_str, token_len+1, "%s", buf);
+
+ /* 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) &&
+ my_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) &&
+ my_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;
+}