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[src/trunk]: src/sys/netinet6 add routines to print in6_addr and sockaddr_in6...
details: https://anonhg.NetBSD.org/src/rev/a280517e46ec
branches: trunk
changeset: 334702:a280517e46ec
user: christos <christos%NetBSD.org@localhost>
date: Tue Dec 02 19:36:58 2014 +0000
description:
add routines to print in6_addr and sockaddr_in6 (in6_print, sin6_print)
diffstat:
sys/netinet6/files.netinet6 | 3 +-
sys/netinet6/in6.c | 66 ++-------------------
sys/netinet6/in6.h | 7 ++-
sys/netinet6/in6_print.c | 132 ++++++++++++++++++++++++++++++++++++++++++++
4 files changed, 147 insertions(+), 61 deletions(-)
diffs (263 lines):
diff -r fbe5b4814b52 -r a280517e46ec sys/netinet6/files.netinet6
--- a/sys/netinet6/files.netinet6 Tue Dec 02 19:35:27 2014 +0000
+++ b/sys/netinet6/files.netinet6 Tue Dec 02 19:36:58 2014 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: files.netinet6,v 1.8 2008/01/25 21:12:15 joerg Exp $
+# $NetBSD: files.netinet6,v 1.9 2014/12/02 19:36:58 christos Exp $
defflag opt_inet6.h RFC2292
@@ -12,6 +12,7 @@
file netinet6/in6_ifattach.c inet6
file netinet6/in6_offload.c inet6
file netinet6/in6_pcb.c inet6
+file netinet6/in6_print.c
file netinet6/in6_proto.c inet6
file netinet6/in6_src.c inet6
file netinet6/ip6_flow.c inet6
diff -r fbe5b4814b52 -r a280517e46ec sys/netinet6/in6.c
--- a/sys/netinet6/in6.c Tue Dec 02 19:35:27 2014 +0000
+++ b/sys/netinet6/in6.c Tue Dec 02 19:36:58 2014 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: in6.c,v 1.179 2014/11/03 13:04:12 roy Exp $ */
+/* $NetBSD: in6.c,v 1.180 2014/12/02 19:36:58 christos Exp $ */
/* $KAME: in6.c,v 1.198 2001/07/18 09:12:38 itojun Exp $ */
/*
@@ -62,7 +62,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: in6.c,v 1.179 2014/11/03 13:04:12 roy Exp $");
+__KERNEL_RCSID(0, "$NetBSD: in6.c,v 1.180 2014/12/02 19:36:58 christos Exp $");
#include "opt_inet.h"
#include "opt_compat_netbsd.h"
@@ -1873,67 +1873,15 @@
/*
* Convert IP6 address to printable (loggable) representation.
*/
-static int ip6round = 0;
char *
ip6_sprintf(const struct in6_addr *addr)
{
- static char ip6buf[8][48];
- int i;
- char *bp;
- char *cp;
- const u_int16_t *a = (const u_int16_t *)addr;
- const u_int8_t *d;
- int dcolon = 0;
-
- ip6round = (ip6round + 1) & 7;
- cp = ip6buf[ip6round];
-
- if (IN6_IS_ADDR_V4MAPPED(addr)) {
- struct in_addr ia = { .s_addr = addr->s6_addr32[3] };
- snprintf(cp, 48, "::ffff:%s", inet_ntoa(ia));
- return cp;
- }
+ static int ip6round = 0;
+ static char ip6buf[8][INET6_ADDRSTRLEN];
+ char *cp = ip6buf[ip6round++ & 7];
- for (i = 0; i < 8; i++) {
- if (dcolon == 1) {
- if (*a == 0) {
- if (i == 7)
- *cp++ = ':';
- a++;
- continue;
- } else
- dcolon = 2;
- }
- if (*a == 0) {
- if (dcolon == 0 && *(a + 1) == 0) {
- if (i == 0)
- *cp++ = ':';
- *cp++ = ':';
- dcolon = 1;
- } else {
- *cp++ = '0';
- *cp++ = ':';
- }
- a++;
- continue;
- }
- d = (const u_char *)a;
- bp = cp;
- *cp = hexdigits[*d >> 4];
- if (*cp != '0')
- cp++;
- *cp = hexdigits[*d++ & 0xf];
- if (cp != bp || *cp != '0')
- cp++;
- *cp = hexdigits[*d >> 4];
- if (cp != bp || *cp != '0')
- cp++;
- *cp++ = hexdigits[*d & 0xf];
- *cp++ = ':';
- a++;
- }
- *--cp = 0;
- return ip6buf[ip6round];
+ in6_print(cp, INET6_ADDRSTRLEN, addr);
+ return cp;
}
/*
diff -r fbe5b4814b52 -r a280517e46ec sys/netinet6/in6.h
--- a/sys/netinet6/in6.h Tue Dec 02 19:35:27 2014 +0000
+++ b/sys/netinet6/in6.h Tue Dec 02 19:36:58 2014 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: in6.h,v 1.79 2014/10/12 19:02:18 christos Exp $ */
+/* $NetBSD: in6.h,v 1.80 2014/12/02 19:36:58 christos Exp $ */
/* $KAME: in6.h,v 1.83 2001/03/29 02:55:07 jinmei Exp $ */
/*
@@ -818,4 +818,9 @@
__END_DECLS
#endif /* _NETBSD_SOURCE */
+#if defined(_KERNEL) || defined(_TEST)
+int in6_print(char *, size_t, const struct in6_addr *);
+int sin6_print(char *, size_t, const void *);
+#endif
+
#endif /* !_NETINET6_IN6_H_ */
diff -r fbe5b4814b52 -r a280517e46ec sys/netinet6/in6_print.c
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/netinet6/in6_print.c Tue Dec 02 19:36:58 2014 +0000
@@ -0,0 +1,132 @@
+/* $NetBSD: in6_print.c,v 1.1 2014/12/02 19:36:58 christos Exp $ */
+
+/*-
+ * Copyright (c) 2014 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
+ */
+#include <sys/cdefs.h>
+
+#include <sys/types.h>
+#ifdef _KERNEL
+__KERNEL_RCSID(0, "$NetBSD: in6_print.c,v 1.1 2014/12/02 19:36:58 christos Exp $");
+#include <sys/systm.h>
+#else
+__RCSID("$NetBSD: in6_print.c,v 1.1 2014/12/02 19:36:58 christos Exp $");
+#include <stdio.h>
+#define s6_addr32 __u6_addr.__u6_addr32
+static const uint8_t hexdigits[] = "0123456789abcdef";
+#endif
+
+#include <netinet/in.h>
+
+int
+in6_print(char *buf, size_t len, const struct in6_addr *ia6)
+{
+ int i;
+ char *bp;
+ char *cp, *ecp;
+ const uint16_t *a;
+ const uint8_t *d;
+ int dcolon = 0;
+
+ if (IN6_IS_ADDR_V4MAPPED(ia6)) {
+ char buf4[INET_ADDRSTRLEN];
+ struct in_addr ia = { .s_addr = ia6->s6_addr32[3] };
+ in_print(buf4, sizeof(buf4), &ia);
+ return snprintf(buf, len, "::ffff:%s", buf4);
+ }
+
+#define ADDC(c) do { \
+ if (cp >= ecp) {\
+ cp++; \
+ } else \
+ *cp++ = (char)(c); \
+ } while (/*CONSTCOND*/0)
+#define ADDX(v) do { \
+ uint8_t n = hexdigits[(v)]; \
+ ADDC(n); \
+ if (cp == bp && n == '0') \
+ cp--; \
+ } while (/*CONSTCOND*/0)
+
+ cp = buf;
+ ecp = buf + len;
+ a = (const uint16_t *)ia6;
+ for (i = 0; i < 8; i++) {
+ if (dcolon == 1) {
+ if (*a == 0) {
+ if (i == 7)
+ ADDC(':');
+ a++;
+ continue;
+ } else
+ dcolon = 2;
+ }
+ if (*a == 0) {
+ if (dcolon == 0 && *(a + 1) == 0) {
+ if (i == 0)
+ ADDC(':');
+ ADDC(':');
+ dcolon = 1;
+ } else {
+ ADDC('0');
+ ADDC(':');
+ }
+ a++;
+ continue;
+ }
+ d = (const u_char *)a;
+ bp = cp + 1;
+
+ ADDX((u_int)*d >> 4);
+ ADDX(*d & 0xf);
+ d++;
+ ADDX((u_int)*d >> 4);
+ ADDX(*d & 0xf);
+ ADDC(':');
+ a++;
+ }
+ if (cp > buf)
+ --cp;
+ if (ecp > buf) {
+ if (cp < ecp)
+ *cp = '\0';
+ else
+ *--ecp = '\0';
+ }
+ return (int)(cp - buf);
+}
+
+int
+sin6_print(char *buf, size_t len, const void *v)
+{
+ const struct sockaddr_in6 *sin6 = v;
+ const struct in6_addr *ia6 = &sin6->sin6_addr;
+ char abuf[INET6_ADDRSTRLEN];
+
+ if (!sin6->sin6_port)
+ return in6_print(buf, len, ia6);
+ in6_print(abuf, sizeof(abuf), ia6);
+ return snprintf(buf, len, "[%s]:%hu", abuf, ntohs(sin6->sin6_port));
+}
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