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-rw-r--r--contrib/bind9/lib/isc/unix/net.c521
1 files changed, 0 insertions, 521 deletions
diff --git a/contrib/bind9/lib/isc/unix/net.c b/contrib/bind9/lib/isc/unix/net.c
deleted file mode 100644
index 1fedbc4..0000000
--- a/contrib/bind9/lib/isc/unix/net.c
+++ /dev/null
@@ -1,521 +0,0 @@
-/*
- * Copyright (C) 2004, 2005, 2007, 2008, 2012 Internet Systems Consortium, Inc. ("ISC")
- * Copyright (C) 1999-2003 Internet Software Consortium.
- *
- * Permission to use, copy, modify, and/or 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 ISC DISCLAIMS ALL WARRANTIES WITH
- * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS. IN NO EVENT SHALL ISC 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.
- */
-
-/* $Id$ */
-
-#include <config.h>
-
-#include <sys/types.h>
-
-#if defined(HAVE_SYS_SYSCTL_H)
-#if defined(HAVE_SYS_PARAM_H)
-#include <sys/param.h>
-#endif
-#include <sys/sysctl.h>
-#endif
-
-#include <errno.h>
-#include <unistd.h>
-
-#include <isc/log.h>
-#include <isc/msgs.h>
-#include <isc/net.h>
-#include <isc/once.h>
-#include <isc/strerror.h>
-#include <isc/string.h>
-#include <isc/util.h>
-
-/*%
- * Definitions about UDP port range specification. This is a total mess of
- * portability variants: some use sysctl (but the sysctl names vary), some use
- * system-specific interfaces, some have the same interface for IPv4 and IPv6,
- * some separate them, etc...
- */
-
-/*%
- * The last resort defaults: use all non well known port space
- */
-#ifndef ISC_NET_PORTRANGELOW
-#define ISC_NET_PORTRANGELOW 1024
-#endif /* ISC_NET_PORTRANGELOW */
-#ifndef ISC_NET_PORTRANGEHIGH
-#define ISC_NET_PORTRANGEHIGH 65535
-#endif /* ISC_NET_PORTRANGEHIGH */
-
-#ifdef HAVE_SYSCTLBYNAME
-
-/*%
- * sysctl variants
- */
-#if defined(__FreeBSD__) || defined(__APPLE__) || defined(__DragonFly__)
-#define USE_SYSCTL_PORTRANGE
-#define SYSCTL_V4PORTRANGE_LOW "net.inet.ip.portrange.hifirst"
-#define SYSCTL_V4PORTRANGE_HIGH "net.inet.ip.portrange.hilast"
-#define SYSCTL_V6PORTRANGE_LOW "net.inet.ip.portrange.hifirst"
-#define SYSCTL_V6PORTRANGE_HIGH "net.inet.ip.portrange.hilast"
-#endif
-
-#ifdef __NetBSD__
-#define USE_SYSCTL_PORTRANGE
-#define SYSCTL_V4PORTRANGE_LOW "net.inet.ip.anonportmin"
-#define SYSCTL_V4PORTRANGE_HIGH "net.inet.ip.anonportmax"
-#define SYSCTL_V6PORTRANGE_LOW "net.inet6.ip6.anonportmin"
-#define SYSCTL_V6PORTRANGE_HIGH "net.inet6.ip6.anonportmax"
-#endif
-
-#else /* !HAVE_SYSCTLBYNAME */
-
-#ifdef __OpenBSD__
-#define USE_SYSCTL_PORTRANGE
-#define SYSCTL_V4PORTRANGE_LOW { CTL_NET, PF_INET, IPPROTO_IP, \
- IPCTL_IPPORT_HIFIRSTAUTO }
-#define SYSCTL_V4PORTRANGE_HIGH { CTL_NET, PF_INET, IPPROTO_IP, \
- IPCTL_IPPORT_HILASTAUTO }
-/* Same for IPv6 */
-#define SYSCTL_V6PORTRANGE_LOW SYSCTL_V4PORTRANGE_LOW
-#define SYSCTL_V6PORTRANGE_HIGH SYSCTL_V4PORTRANGE_HIGH
-#endif
-
-#endif /* HAVE_SYSCTLBYNAME */
-
-#if defined(ISC_PLATFORM_HAVEIPV6)
-# if defined(ISC_PLATFORM_NEEDIN6ADDRANY)
-const struct in6_addr isc_net_in6addrany = IN6ADDR_ANY_INIT;
-# endif
-
-# if defined(ISC_PLATFORM_NEEDIN6ADDRLOOPBACK)
-const struct in6_addr isc_net_in6addrloop = IN6ADDR_LOOPBACK_INIT;
-# endif
-
-# if defined(WANT_IPV6)
-static isc_once_t once_ipv6only = ISC_ONCE_INIT;
-# endif
-
-# if defined(ISC_PLATFORM_HAVEIN6PKTINFO)
-static isc_once_t once_ipv6pktinfo = ISC_ONCE_INIT;
-# endif
-#endif /* ISC_PLATFORM_HAVEIPV6 */
-
-static isc_once_t once = ISC_ONCE_INIT;
-
-static isc_result_t ipv4_result = ISC_R_NOTFOUND;
-static isc_result_t ipv6_result = ISC_R_NOTFOUND;
-static isc_result_t unix_result = ISC_R_NOTFOUND;
-static isc_result_t ipv6only_result = ISC_R_NOTFOUND;
-static isc_result_t ipv6pktinfo_result = ISC_R_NOTFOUND;
-
-static isc_result_t
-try_proto(int domain) {
- int s;
- isc_result_t result = ISC_R_SUCCESS;
- char strbuf[ISC_STRERRORSIZE];
-
- s = socket(domain, SOCK_STREAM, 0);
- if (s == -1) {
- switch (errno) {
-#ifdef EAFNOSUPPORT
- case EAFNOSUPPORT:
-#endif
-#ifdef EPROTONOSUPPORT
- case EPROTONOSUPPORT:
-#endif
-#ifdef EINVAL
- case EINVAL:
-#endif
- return (ISC_R_NOTFOUND);
- default:
- isc__strerror(errno, strbuf, sizeof(strbuf));
- UNEXPECTED_ERROR(__FILE__, __LINE__,
- "socket() %s: %s",
- isc_msgcat_get(isc_msgcat,
- ISC_MSGSET_GENERAL,
- ISC_MSG_FAILED,
- "failed"),
- strbuf);
- return (ISC_R_UNEXPECTED);
- }
- }
-
-#ifdef ISC_PLATFORM_HAVEIPV6
-#ifdef WANT_IPV6
-#ifdef ISC_PLATFORM_HAVEIN6PKTINFO
- if (domain == PF_INET6) {
- struct sockaddr_in6 sin6;
- unsigned int len;
-
- /*
- * Check to see if IPv6 is broken, as is common on Linux.
- */
- len = sizeof(sin6);
- if (getsockname(s, (struct sockaddr *)&sin6, (void *)&len) < 0)
- {
- isc_log_write(isc_lctx, ISC_LOGCATEGORY_GENERAL,
- ISC_LOGMODULE_SOCKET, ISC_LOG_ERROR,
- "retrieving the address of an IPv6 "
- "socket from the kernel failed.");
- isc_log_write(isc_lctx, ISC_LOGCATEGORY_GENERAL,
- ISC_LOGMODULE_SOCKET, ISC_LOG_ERROR,
- "IPv6 is not supported.");
- result = ISC_R_NOTFOUND;
- } else {
- if (len == sizeof(struct sockaddr_in6))
- result = ISC_R_SUCCESS;
- else {
- isc_log_write(isc_lctx,
- ISC_LOGCATEGORY_GENERAL,
- ISC_LOGMODULE_SOCKET,
- ISC_LOG_ERROR,
- "IPv6 structures in kernel and "
- "user space do not match.");
- isc_log_write(isc_lctx,
- ISC_LOGCATEGORY_GENERAL,
- ISC_LOGMODULE_SOCKET,
- ISC_LOG_ERROR,
- "IPv6 is not supported.");
- result = ISC_R_NOTFOUND;
- }
- }
- }
-#endif
-#endif
-#endif
-
- (void)close(s);
-
- return (result);
-}
-
-static void
-initialize_action(void) {
- ipv4_result = try_proto(PF_INET);
-#ifdef ISC_PLATFORM_HAVEIPV6
-#ifdef WANT_IPV6
-#ifdef ISC_PLATFORM_HAVEIN6PKTINFO
- ipv6_result = try_proto(PF_INET6);
-#endif
-#endif
-#endif
-#ifdef ISC_PLATFORM_HAVESYSUNH
- unix_result = try_proto(PF_UNIX);
-#endif
-}
-
-static void
-initialize(void) {
- RUNTIME_CHECK(isc_once_do(&once, initialize_action) == ISC_R_SUCCESS);
-}
-
-isc_result_t
-isc_net_probeipv4(void) {
- initialize();
- return (ipv4_result);
-}
-
-isc_result_t
-isc_net_probeipv6(void) {
- initialize();
- return (ipv6_result);
-}
-
-isc_result_t
-isc_net_probeunix(void) {
- initialize();
- return (unix_result);
-}
-
-#ifdef ISC_PLATFORM_HAVEIPV6
-#ifdef WANT_IPV6
-static void
-try_ipv6only(void) {
-#ifdef IPV6_V6ONLY
- int s, on;
- char strbuf[ISC_STRERRORSIZE];
-#endif
- isc_result_t result;
-
- result = isc_net_probeipv6();
- if (result != ISC_R_SUCCESS) {
- ipv6only_result = result;
- return;
- }
-
-#ifndef IPV6_V6ONLY
- ipv6only_result = ISC_R_NOTFOUND;
- return;
-#else
- /* check for TCP sockets */
- s = socket(PF_INET6, SOCK_STREAM, 0);
- if (s == -1) {
- isc__strerror(errno, strbuf, sizeof(strbuf));
- UNEXPECTED_ERROR(__FILE__, __LINE__,
- "socket() %s: %s",
- isc_msgcat_get(isc_msgcat,
- ISC_MSGSET_GENERAL,
- ISC_MSG_FAILED,
- "failed"),
- strbuf);
- ipv6only_result = ISC_R_UNEXPECTED;
- return;
- }
-
- on = 1;
- if (setsockopt(s, IPPROTO_IPV6, IPV6_V6ONLY, &on, sizeof(on)) < 0) {
- ipv6only_result = ISC_R_NOTFOUND;
- goto close;
- }
-
- close(s);
-
- /* check for UDP sockets */
- s = socket(PF_INET6, SOCK_DGRAM, 0);
- if (s == -1) {
- isc__strerror(errno, strbuf, sizeof(strbuf));
- UNEXPECTED_ERROR(__FILE__, __LINE__,
- "socket() %s: %s",
- isc_msgcat_get(isc_msgcat,
- ISC_MSGSET_GENERAL,
- ISC_MSG_FAILED,
- "failed"),
- strbuf);
- ipv6only_result = ISC_R_UNEXPECTED;
- return;
- }
-
- on = 1;
- if (setsockopt(s, IPPROTO_IPV6, IPV6_V6ONLY, &on, sizeof(on)) < 0) {
- ipv6only_result = ISC_R_NOTFOUND;
- goto close;
- }
-
- ipv6only_result = ISC_R_SUCCESS;
-
-close:
- close(s);
- return;
-#endif /* IPV6_V6ONLY */
-}
-
-static void
-initialize_ipv6only(void) {
- RUNTIME_CHECK(isc_once_do(&once_ipv6only,
- try_ipv6only) == ISC_R_SUCCESS);
-}
-#endif /* WANT_IPV6 */
-
-#ifdef ISC_PLATFORM_HAVEIN6PKTINFO
-static void
-try_ipv6pktinfo(void) {
- int s, on;
- char strbuf[ISC_STRERRORSIZE];
- isc_result_t result;
- int optname;
-
- result = isc_net_probeipv6();
- if (result != ISC_R_SUCCESS) {
- ipv6pktinfo_result = result;
- return;
- }
-
- /* we only use this for UDP sockets */
- s = socket(PF_INET6, SOCK_DGRAM, IPPROTO_UDP);
- if (s == -1) {
- isc__strerror(errno, strbuf, sizeof(strbuf));
- UNEXPECTED_ERROR(__FILE__, __LINE__,
- "socket() %s: %s",
- isc_msgcat_get(isc_msgcat,
- ISC_MSGSET_GENERAL,
- ISC_MSG_FAILED,
- "failed"),
- strbuf);
- ipv6pktinfo_result = ISC_R_UNEXPECTED;
- return;
- }
-
-#ifdef IPV6_RECVPKTINFO
- optname = IPV6_RECVPKTINFO;
-#else
- optname = IPV6_PKTINFO;
-#endif
- on = 1;
- if (setsockopt(s, IPPROTO_IPV6, optname, &on, sizeof(on)) < 0) {
- ipv6pktinfo_result = ISC_R_NOTFOUND;
- goto close;
- }
-
- ipv6pktinfo_result = ISC_R_SUCCESS;
-
-close:
- close(s);
- return;
-}
-
-static void
-initialize_ipv6pktinfo(void) {
- RUNTIME_CHECK(isc_once_do(&once_ipv6pktinfo,
- try_ipv6pktinfo) == ISC_R_SUCCESS);
-}
-#endif /* ISC_PLATFORM_HAVEIN6PKTINFO */
-#endif /* ISC_PLATFORM_HAVEIPV6 */
-
-isc_result_t
-isc_net_probe_ipv6only(void) {
-#ifdef ISC_PLATFORM_HAVEIPV6
-#ifdef WANT_IPV6
- initialize_ipv6only();
-#else
- ipv6only_result = ISC_R_NOTFOUND;
-#endif
-#endif
- return (ipv6only_result);
-}
-
-isc_result_t
-isc_net_probe_ipv6pktinfo(void) {
-#ifdef ISC_PLATFORM_HAVEIPV6
-#ifdef ISC_PLATFORM_HAVEIN6PKTINFO
-#ifdef WANT_IPV6
- initialize_ipv6pktinfo();
-#else
- ipv6pktinfo_result = ISC_R_NOTFOUND;
-#endif
-#endif
-#endif
- return (ipv6pktinfo_result);
-}
-
-#if defined(USE_SYSCTL_PORTRANGE)
-#if defined(HAVE_SYSCTLBYNAME)
-static isc_result_t
-getudpportrange_sysctl(int af, in_port_t *low, in_port_t *high) {
- int port_low, port_high;
- size_t portlen;
- const char *sysctlname_lowport, *sysctlname_hiport;
-
- if (af == AF_INET) {
- sysctlname_lowport = SYSCTL_V4PORTRANGE_LOW;
- sysctlname_hiport = SYSCTL_V4PORTRANGE_HIGH;
- } else {
- sysctlname_lowport = SYSCTL_V6PORTRANGE_LOW;
- sysctlname_hiport = SYSCTL_V6PORTRANGE_HIGH;
- }
- portlen = sizeof(portlen);
- if (sysctlbyname(sysctlname_lowport, &port_low, &portlen,
- NULL, 0) < 0) {
- return (ISC_R_FAILURE);
- }
- portlen = sizeof(portlen);
- if (sysctlbyname(sysctlname_hiport, &port_high, &portlen,
- NULL, 0) < 0) {
- return (ISC_R_FAILURE);
- }
- if ((port_low & ~0xffff) != 0 || (port_high & ~0xffff) != 0)
- return (ISC_R_RANGE);
-
- *low = (in_port_t)port_low;
- *high = (in_port_t)port_high;
-
- return (ISC_R_SUCCESS);
-}
-#else /* !HAVE_SYSCTLBYNAME */
-static isc_result_t
-getudpportrange_sysctl(int af, in_port_t *low, in_port_t *high) {
- int mib_lo4[4] = SYSCTL_V4PORTRANGE_LOW;
- int mib_hi4[4] = SYSCTL_V4PORTRANGE_HIGH;
- int mib_lo6[4] = SYSCTL_V6PORTRANGE_LOW;
- int mib_hi6[4] = SYSCTL_V6PORTRANGE_HIGH;
- int *mib_lo, *mib_hi, miblen;
- int port_low, port_high;
- size_t portlen;
-
- if (af == AF_INET) {
- mib_lo = mib_lo4;
- mib_hi = mib_hi4;
- miblen = sizeof(mib_lo4) / sizeof(mib_lo4[0]);
- } else {
- mib_lo = mib_lo6;
- mib_hi = mib_hi6;
- miblen = sizeof(mib_lo6) / sizeof(mib_lo6[0]);
- }
-
- portlen = sizeof(portlen);
- if (sysctl(mib_lo, miblen, &port_low, &portlen, NULL, 0) < 0) {
- return (ISC_R_FAILURE);
- }
-
- portlen = sizeof(portlen);
- if (sysctl(mib_hi, miblen, &port_high, &portlen, NULL, 0) < 0) {
- return (ISC_R_FAILURE);
- }
-
- if ((port_low & ~0xffff) != 0 || (port_high & ~0xffff) != 0)
- return (ISC_R_RANGE);
-
- *low = (in_port_t) port_low;
- *high = (in_port_t) port_high;
-
- return (ISC_R_SUCCESS);
-}
-#endif /* HAVE_SYSCTLBYNAME */
-#endif /* USE_SYSCTL_PORTRANGE */
-
-isc_result_t
-isc_net_getudpportrange(int af, in_port_t *low, in_port_t *high) {
- int result = ISC_R_FAILURE;
-
- REQUIRE(low != NULL && high != NULL);
-
-#if defined(USE_SYSCTL_PORTRANGE)
- result = getudpportrange_sysctl(af, low, high);
-#else
- UNUSED(af);
-#endif
-
- if (result != ISC_R_SUCCESS) {
- *low = ISC_NET_PORTRANGELOW;
- *high = ISC_NET_PORTRANGEHIGH;
- }
-
- return (ISC_R_SUCCESS); /* we currently never fail in this function */
-}
-
-void
-isc_net_disableipv4(void) {
- initialize();
- if (ipv4_result == ISC_R_SUCCESS)
- ipv4_result = ISC_R_DISABLED;
-}
-
-void
-isc_net_disableipv6(void) {
- initialize();
- if (ipv6_result == ISC_R_SUCCESS)
- ipv6_result = ISC_R_DISABLED;
-}
-
-void
-isc_net_enableipv4(void) {
- initialize();
- if (ipv4_result == ISC_R_DISABLED)
- ipv4_result = ISC_R_SUCCESS;
-}
-
-void
-isc_net_enableipv6(void) {
- initialize();
- if (ipv6_result == ISC_R_DISABLED)
- ipv6_result = ISC_R_SUCCESS;
-}
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