# -*- tab-width: 4 -*-
#
-# Copyright (c) 2002-2004 Apple Computer, Inc. All rights reserved.
+# Copyright (c) 2002-2004, 2015 Apple Computer, Inc. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# $+ means "The names of all the prerequisites, with spaces between them, exactly as given"
# For more magic automatic variables, see
# <http://www.gnu.org/software/make/manual/html_chapter/make_10.html#SEC111>
+#
+# This makefile uses $(CC) for compilation and linking, which is
+# an automatic implicit gcc variable that defaults to "cc"
+# <https://www.gnu.org/software/make/manual/html_node/Implicit-Variables.html>
#############################################################################
mkdir build
build/dns-sd: build dns-sd.c ClientCommon.c
- cc $(filter %.c %.o, $+) $(LIBS) -I../mDNSShared -Wall -o $@
+ $(CC) $(filter %.c %.o, $+) $(LIBS) -I../mDNSShared -Wall -o $@
build/dns-sd64: build dns-sd.c ClientCommon.c
- cc $(filter %.c %.o, $+) $(LIBS) -I../mDNSShared -Wall -o $@ -m64
+ $(CC) $(filter %.c %.o, $+) $(LIBS) -I../mDNSShared -Wall -o $@ -m64
# Note, we can make a 'fat' version of dns-sd using 'lipo', as shown below, but we
# don't, because we don't want or need a 'fat' version of dns-sd, because it will
err = RegisterService(&client, argv[opi+0], typ, dom, NULL, argv[opi+3], argc-(opi+4), argv+(opi+4), flags);
break;
-
case 'P': if (argc < opi+6) goto Fail;
err = DNSServiceCreateConnection(&client_pa);
if (err) { fprintf(stderr, "DNSServiceCreateConnection returned %d\n", err); return(err); }
default: goto Fail;
}
- if (!client || err != kDNSServiceErr_NoError) { fprintf(stderr, "DNSService call failed %ld\n", (long int)err); return (-1); }
+ if (!client || err != kDNSServiceErr_NoError)
+ {
+ fprintf(stderr, "DNSService call failed %ld%s\n", (long int)err,
+ (err == kDNSServiceErr_ServiceNotRunning) ? " (Service Not Running)" : "");
+ return (-1);
+ }
printtimestamp();
printf("...STARTING...\n");
HandleEvents();
include $(MAKEFILEPATH)/pb_makefiles/platform.make
-MVERS = "mDNSResponder-561.1.1"
+MVERS = "mDNSResponder-567"
DDNSWRITECONFIG = "$(DSTROOT)/Library/Application Support/Bonjour/ddnswriteconfig"
VER =
char *ptr = buffer;
mDNSu32 length = mDNS_snprintf(buffer, MaxMsg-1, "%4d %##s %s ", rr->rdlength, rr->name->c, DNSTypeName(rr->rrtype));
if (rr->RecordType == kDNSRecordTypePacketNegative) return(buffer);
- if (!rr->rdlength) { mDNS_snprintf(buffer+length, RemSpc, "<< ZERO RDATA LENGTH >>"); return(buffer); }
+ if (!rr->rdlength && rr->rrtype != kDNSType_OPT) { mDNS_snprintf(buffer+length, RemSpc, "<< ZERO RDATA LENGTH >>"); return(buffer); }
switch (rr->rrtype)
{
switch(opt->opt)
{
case kDNSOpt_LLQ:
+ length += mDNS_snprintf(buffer+length, RemSpc, " LLQ");
length += mDNS_snprintf(buffer+length, RemSpc, " Vers %d", opt->u.llq.vers);
length += mDNS_snprintf(buffer+length, RemSpc, " Op %d", opt->u.llq.llqOp);
length += mDNS_snprintf(buffer+length, RemSpc, " Err/Port %d", opt->u.llq.err);
length += mDNS_snprintf(buffer+length, RemSpc, " Lease %d", opt->u.updatelease);
break;
case kDNSOpt_Owner:
+ length += mDNS_snprintf(buffer+length, RemSpc, " Owner");
length += mDNS_snprintf(buffer+length, RemSpc, " Vers %d", opt->u.owner.vers);
length += mDNS_snprintf(buffer+length, RemSpc, " Seq %3d", (mDNSu8)opt->u.owner.seq); // Display as unsigned
length += mDNS_snprintf(buffer+length, RemSpc, " MAC %.6a", opt->u.owner.HMAC.b);
}
break;
case kDNSOpt_Trace:
+ length += mDNS_snprintf(buffer+length, RemSpc, " Trace");
length += mDNS_snprintf(buffer+length, RemSpc, " Platform %d", opt->u.tracer.platf);
length += mDNS_snprintf(buffer+length, RemSpc, " mDNSVers %d", opt->u.tracer.mDNSv);
break;
opt->u.tracer.mDNSv = (mDNSu32) ((mDNSu32)ptr[1] << 24 | (mDNSu32)ptr[2] << 16 | (mDNSu32)ptr[3] << 8 | ptr[4]);
opt++;
}
+ else
+ {
+ opt->u.tracer.platf = 0xFF;
+ opt->u.tracer.mDNSv = 0xFFFFFFFF;
+ opt++;
+ }
break;
}
ptr += currentopt->optlen;
* routines, or types (which may or may not be present on any given platform).
*/
-#include "DNSCommon.h" // Defines general DNS untility routines
+#include "DNSCommon.h" // Defines general DNS utility routines
#include "uDNS.h" // Defines entry points into unicast-specific routines
#include "nsec.h"
#include "dnssec.h"
mDNSlocal void SuppressStatusChanged(mDNS *const m, DNSQuestion *q, DNSQuestion **restart)
{
// NOTE: CacheRecordRmvEventsForQuestion will not generate RMV events for queries that have non-zero
- // LOddressAnswers. Hence it is important that we call CacheRecordRmvEventsForQuestion before
+ // LOAddressAnswers. Hence it is important that we call CacheRecordRmvEventsForQuestion before
// LocalRecordRmvEventsForQuestion (which decrements LOAddressAnswers)
if (q->SuppressQuery)
{
#ifdef LIMITED_RESOURCES_TARGET
// Don't support jumbo frames
#define AbsoluteMaxDNSMessageData 1500
+// By the time you add IPv6 header (40 bytes) UDP header (8 bytes) and DNS message header (12 bytes)
+// this makes 1560 which is 60 bytes over the standard Ethernet MTU. D'oh!
+
// StandardAuthRDSize is 264 (256+8), which is large enough to hold a maximum-sized SRV record (6 + 256 bytes)
#define MaximumRDSize 264
// Don't cache anything
else
{
long n;
- if (tcpInfo->nread < 2) // First read the two-byte length preceeding the DNS message
+ const mDNSBool Read_replylen = (tcpInfo->nread < 2); // Do we need to read the replylen field first?
+ if (Read_replylen) // First read the two-byte length preceeding the DNS message
{
mDNSu8 *lenptr = (mDNSu8 *)&tcpInfo->replylen;
n = mDNSPlatformReadTCP(sock, lenptr + tcpInfo->nread, 2 - tcpInfo->nread, &closed);
if (n < 0)
{
- LogMsg("ERROR: tcpCallback - read returned %d", n);
- err = mStatus_ConnFailed;
+ // If this is our only read for this invokation, and it fails, then that's bad.
+ // But if we did successfully read some or all of the replylen field this time through,
+ // and this is now our second read from the socket, then it's expected that sometimes
+ // there may be no more data present, and that's perfectly okay.
+ // Assuming failure of the second read is a problem is what caused this bug:
+ // <rdar://problem/15043194> mDNSResponder fails to read DNS over TCP packet correctly
+ if (!Read_replylen) { LogMsg("ERROR: tcpCallback - read returned %d", n); err = mStatus_ConnFailed; }
goto exit;
}
else if (closed)
-#include "<DEVELOPER_DIR>/AppleInternal/XcodeConfig/SimulatorSupport.xcconfig"
-
-// Set INSTALL_PATH[sdk=macosx*] when SimulatorSupport.xcconfig is unavailable
-INSTALL_PATH[sdk=macosx*] = $(INSTALL_PATH_ACTUAL)
-
-// Use $(INSTALL_PATH_PREFIX) instead of $(SDKROOT) as an unconditional prefix
-PUBLIC_HEADERS_FOLDER_PATH = $(INSTALL_PATH_PREFIX)/usr/include
-PRIVATE_HEADERS_FOLDER_PATH = $(INSTALL_PATH_PREFIX)/usr/local/include
+PUBLIC_HEADERS_FOLDER_PATH = /usr/include
+PRIVATE_HEADERS_FOLDER_PATH = /usr/local/include
while (recv(fd, buffer, sizeof(buffer), MSG_DONTWAIT) > 0) continue;
}
+mDNSlocal void SetLowWater(const KQSocketSet *const k, const int r)
+{
+ if (setsockopt(k->sktv4, SOL_SOCKET, SO_RCVLOWAT, &r, sizeof(r)) < 0)
+ LogMsg("SO_RCVLOWAT IPv4 %d error %d errno %d (%s)", k->sktv4, r, errno, strerror(errno));
+ if (setsockopt(k->sktv6, SOL_SOCKET, SO_RCVLOWAT, &r, sizeof(r)) < 0)
+ LogMsg("SO_RCVLOWAT IPv6 %d error %d errno %d (%s)", k->sktv6, r, errno, strerror(errno));
+}
+
mDNSlocal void * KQueueLoop(void *m_param)
{
mDNS *m = m_param;
// 3. The timeout expires
pthread_mutex_unlock(&PlatformStorage.BigMutex);
+ // If we woke up to receive a multicast, set low-water mark to dampen excessive wakeup rate
+ if (m->p->num_mcasts)
+ {
+ SetLowWater(&m->p->permanentsockets, 0x10000);
+ if (ticks > mDNSPlatformOneSecond / 8) ticks = mDNSPlatformOneSecond / 8;
+ }
+
#if USE_SELECT_WITH_KQUEUEFD
struct timeval timeout;
timeout.tv_sec = ticks / mDNSPlatformOneSecond;
// makes the event no longer valid. Now we have the lock, we call kevent again
// and this time we can safely process the events it tells us about.
+ // If we changed UDP socket low-water mark, restore it, so we will be told about every packet
+ if (m->p->num_mcasts)
+ {
+ SetLowWater(&m->p->permanentsockets, 1);
+ m->p->num_mcasts = 0;
+ }
+
static const struct timespec zero_timeout = { 0, 0 };
int events_found;
while ((events_found = kevent(KQueueFD, NULL, 0, new_events, kEventsToReadAtOnce, &zero_timeout)) != 0)
}
// If we are not showing the dialogue, we need to remember the first "old" value so that
- // we maintain the same through the lifetime of the dialogue. Subsequence conflicts don't
+ // we maintain the same through the lifetime of the dialogue. Subsequent conflicts don't
// update the "old" value.
if (!user[0])
{
err = myrecvfrom(s1, &m->imsg, sizeof(m->imsg), (struct sockaddr *)&from, &fromlen, &destAddr, packetifname, &ttl);
if (err < 0) break;
+ if ((destAddr.type == mDNSAddrType_IPv4 && (destAddr.ip.v4.b[0] & 0xF0) == 0xE0) ||
+ (destAddr.type == mDNSAddrType_IPv6 && (destAddr.ip.v6.b[0] == 0xFF))) m->p->num_mcasts++;
+
count++;
if (from.ss_family == AF_INET)
{
#endif // SO_RECV_ANYIF
// ... with a shared UDP port, if it's for multicast receiving
- if (mDNSSameIPPort(port, MulticastDNSPort) || mDNSSameIPPort(port, NATPMPAnnouncementPort)) err = setsockopt(skt, SOL_SOCKET, SO_REUSEPORT, &on, sizeof(on));
- if (err < 0) { errstr = "setsockopt - SO_REUSEPORT"; goto fail; }
+ if (mDNSSameIPPort(port, MulticastDNSPort) || mDNSSameIPPort(port, NATPMPAnnouncementPort))
+ {
+ err = setsockopt(skt, SOL_SOCKET, SO_REUSEPORT, &on, sizeof(on));
+ if (err < 0) { errstr = "setsockopt - SO_REUSEPORT"; goto fail; }
+ }
if (sa_family == AF_INET)
{
char buf[MAX_ESCAPED_DOMAIN_NAME]; // Max legal C-string name, including terminating NUL
domainname d;
- SCDynamicStoreRef store = SCDynamicStoreCreate(NULL, CFSTR("mDNSResponder:mDNSPlatformSetDNSConfig"), NULL, NULL);
+ SCDynamicStoreRef store = SCDynamicStoreCreate(NULL, CFSTR("mDNSResponder:SetupDDNSDomains"), NULL, NULL);
if (!store)
{
LogMsg("SetupDDNSDomains: SCDynamicStoreCreate failed: %s", SCErrorString(SCError()));
static mDNSu16 resolverGroupID = 0;
// Need to set these here because we need to do this even if SCDynamicStoreCreate() or SCDynamicStoreCopyValue() below don't succeed
- if (fqdn) fqdn->c[0] = 0;
+ if (fqdn ) fqdn->c[0] = 0;
if (RegDomains ) *RegDomains = NULL;
if (BrowseDomains) *BrowseDomains = NULL;
else
{
LogInfo("mDNSPlatformSetDNSConfig: config->n_resolver = %d, generation %llu", config->n_resolver, config->generation);
- if (m->p->LastConfigGeneration == config->generation)
+ // SameDomainName check below is to fix <rdar://problem/18059009> Dynamic DNS hostname changes not noticed
+ if (m->p->LastConfigGeneration == config->generation && (!fqdn || (SameDomainName(fqdn, &m->FQDN))))
{
LogInfo("mDNSPlatformSetDNSConfig: generation number %llu same, not processing", config->generation);
dns_configuration_free(config);
{
NetworkInterfaceInfoOSX *InterfaceList;
KQSocketSet permanentsockets;
+ int num_mcasts; // Number of multicasts received during this CPU scheduling period (used for CPU limiting)
domainlabel userhostlabel; // The hostlabel as it was set in System Preferences the last time we looked
domainlabel usernicelabel; // The nicelabel as it was set in System Preferences the last time we looked
// Following four variables are used for optimization where the helper is not
isa = PBXAggregateTarget;
buildConfigurationList = 03067D730C83A3CB0022BE1F /* Build configuration list for PBXAggregateTarget "Build Some" */;
buildPhases = (
- FF045B6A0C7E4AA600448140 /* ShellScript */,
);
dependencies = (
217A4C49138EE14C000A5BA8 /* PBXTargetDependency */,
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84C5B3411665544B00C324A8 /* PBXTargetDependency */,
);
name = "Build Some";
name = SystemLibrariesStatic;
productName = SystemLibrariesStatic;
};
+ 3F2EAA9F1A5B85FF007F5A52 /* Build Deprecated */ = {
+ isa = PBXAggregateTarget;
+ buildConfigurationList = 3F2EAAA11A5B85FF007F5A52 /* Build configuration list for PBXAggregateTarget "Build Deprecated" */;
+ buildPhases = (
+ );
+ dependencies = (
+ 3F2EAAA71A5B861D007F5A52 /* PBXTargetDependency */,
+ 3F2EAAA51A5B861C007F5A52 /* PBXTargetDependency */,
+ 3F2EAAA91A5B861E007F5A52 /* PBXTargetDependency */,
+ );
+ name = "Build Deprecated";
+ productName = "Build Deprecated";
+ };
FFA572650AF190F10055A0F1 /* SystemLibrariesDynamic */ = {
isa = PBXAggregateTarget;
buildConfigurationList = FFA5726E0AF191200055A0F1 /* Build configuration list for PBXAggregateTarget "SystemLibrariesDynamic" */;
);
dependencies = (
FFB7657D0AEED97F00583A2C /* PBXTargetDependency */,
+ 3F2EAAA31A5B8608007F5A52 /* PBXTargetDependency */,
2141DCFD123FFB7D0086D23E /* PBXTargetDependency */,
);
name = "Build All";
/* End PBXBuildRule section */
/* Begin PBXContainerItemProxy section */
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- isa = PBXContainerItemProxy;
- containerPortal = 08FB7793FE84155DC02AAC07 /* Project object */;
- proxyType = 1;
- remoteGlobalIDString = D284BE500ADD80740027CCDF;
- remoteInfo = mDNSResponder;
- };
- 03067D690C83A3890022BE1F /* PBXContainerItemProxy */ = {
- isa = PBXContainerItemProxy;
- containerPortal = 08FB7793FE84155DC02AAC07 /* Project object */;
- proxyType = 1;
- remoteGlobalIDString = D284BE750ADD80800027CCDF;
- remoteInfo = "mDNSResponder debug";
- };
03067D6B0C83A3920022BE1F /* PBXContainerItemProxy */ = {
isa = PBXContainerItemProxy;
containerPortal = 08FB7793FE84155DC02AAC07 /* Project object */;
remoteGlobalIDString = D284BEA50ADD80920027CCDF;
remoteInfo = "dns-sd tool";
};
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- containerPortal = 08FB7793FE84155DC02AAC07 /* Project object */;
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- remoteInfo = mDNSResponderHelper;
- };
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isa = PBXContainerItemProxy;
containerPortal = 08FB7793FE84155DC02AAC07 /* Project object */;
remoteGlobalIDString = 213FB21712028A7A002B3A08;
remoteInfo = BonjourEvents;
};
+ 3F2EAAA21A5B8608007F5A52 /* PBXContainerItemProxy */ = {
+ isa = PBXContainerItemProxy;
+ containerPortal = 08FB7793FE84155DC02AAC07 /* Project object */;
+ proxyType = 1;
+ remoteGlobalIDString = 3F2EAA9F1A5B85FF007F5A52;
+ remoteInfo = "Build Deprecated";
+ };
+ 3F2EAAA41A5B861C007F5A52 /* PBXContainerItemProxy */ = {
+ isa = PBXContainerItemProxy;
+ containerPortal = 08FB7793FE84155DC02AAC07 /* Project object */;
+ proxyType = 1;
+ remoteGlobalIDString = D284BE750ADD80800027CCDF;
+ remoteInfo = "mDNSResponder debug";
+ };
+ 3F2EAAA61A5B861D007F5A52 /* PBXContainerItemProxy */ = {
+ isa = PBXContainerItemProxy;
+ containerPortal = 08FB7793FE84155DC02AAC07 /* Project object */;
+ proxyType = 1;
+ remoteGlobalIDString = D284BE500ADD80740027CCDF;
+ remoteInfo = mDNSResponder;
+ };
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+ containerPortal = 08FB7793FE84155DC02AAC07 /* Project object */;
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+ remoteInfo = mDNSResponderHelper;
+ };
4AE471690EAFF83800A6C5AD /* PBXContainerItemProxy */ = {
isa = PBXContainerItemProxy;
containerPortal = 08FB7793FE84155DC02AAC07 /* Project object */;
08FB7793FE84155DC02AAC07 /* Project object */ = {
isa = PBXProject;
attributes = {
+ TargetAttributes = {
+ 3F2EAA9F1A5B85FF007F5A52 = {
+ CreatedOnToolsVersion = 6.3;
+ };
+ };
};
buildConfigurationList = D284BE2B0ADD78180027CCDF /* Build configuration list for PBXProject "mDNSResponder" */;
compatibilityVersion = "Xcode 3.1";
targets = (
00AD62BB032D7A0C0CCA2C71 /* Build More */,
03067D640C83A3700022BE1F /* Build Some */,
+ 3F2EAA9F1A5B85FF007F5A52 /* Build Deprecated */,
FFB7657B0AEED96B00583A2C /* Build All */,
D284BE500ADD80740027CCDF /* mDNSResponder */,
D284BE750ADD80800027CCDF /* mDNSResponder debug */,
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runOnlyForDeploymentPostprocessing = 1;
shellPath = /bin/sh;
- shellScript = "DSTROOT=${DSTROOT}${INSTALL_PATH_PREFIX}\n\nmkdir -p \"$DSTROOT/usr/include\"\nsed 's/\\(^#define _DNS_SD_LIBDISPATCH \\)0$/\\1 1/' \"$SRCROOT/../mDNSShared/dns_sd.h\" > \"$DSTROOT/usr/include/dns_sd.h\"";
+ shellScript = "DSTROOT=${DSTROOT}\n\nmkdir -p \"$DSTROOT/usr/include\"\nsed 's/\\(^#define _DNS_SD_LIBDISPATCH \\)0$/\\1 1/' \"$SRCROOT/../mDNSShared/dns_sd.h\" > \"$DSTROOT/usr/include/dns_sd.h\"";
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isa = PBXShellScriptBuildPhase;
outputPaths = (
);
runOnlyForDeploymentPostprocessing = 1;
- shellPath = /bin/sh;
- shellScript = "DSTROOT=${DSTROOT}${INSTALL_PATH_PREFIX}\nmkdir -p \"$DSTROOT/usr/include\"\nsed 's/\\(^#define _DNS_SD_LIBDISPATCH \\)0$/\\1 1/' \"$SRCROOT/../mDNSShared/dns_sd.h\" > \"$DSTROOT/usr/include/dns_sd.h\"";
+ shellPath = "/bin/bash -e -x";
+ shellScript = "DSTROOT=${DSTROOT}\nmkdir -p \"$DSTROOT/usr/include\"\nsed 's/\\(^#define _DNS_SD_LIBDISPATCH \\)0$/\\1 1/' \"$SRCROOT/../mDNSShared/dns_sd.h\" > \"$DSTROOT/usr/include/dns_sd.h\"\n\nif [[ \"${ACTION}\" == \"installhdrs\" ]]; then\n exit 0\nfi\n\nif [[ \"${PLATFORM_NAME}\" =~ \"simulator\" ]]; then\n ln -s libsystem_dnssd.dylib ${DSTROOT}${INSTALL_PATH}/libsystem_sim_dnssd.dylib\nfi\n";
};
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isa = PBXShellScriptBuildPhase;
shellPath = /bin/sh;
shellScript = "if [ -e \"${SDKROOT}/usr/local/include/dnsinfo.h\" ]\nthen\nrm -f \"${CONFIGURATION_TEMP_DIR}/dnsinfo.h\"\nrm -f \"${CONFIGURATION_TEMP_DIR}/libdnsinfo.a\"\nelse\necho \"#define MDNS_NO_DNSINFO 1\" > ${CONFIGURATION_TEMP_DIR}/dnsinfo.h\ntouch \"${CONFIGURATION_TEMP_DIR}/empty.c\"\nfor i in ${ARCHS}\ndo\nccflags=\"-arch $i $ccflags\"\ndone\ncc ${ccflags} \"${CONFIGURATION_TEMP_DIR}/empty.c\" -c -o \"${CONFIGURATION_TEMP_DIR}/libdnsinfo.a\"\nrm -f \"${CONFIGURATION_TEMP_DIR}/empty.c\"\nfi\n\nif [ -e \"${SDKROOT}/usr/include/sandbox.h\" ]\nthen\nrm -f \"${CONFIGURATION_TEMP_DIR}/sandbox.h\"\nelse\necho \"#define MDNS_NO_SANDBOX 1\" > \"${CONFIGURATION_TEMP_DIR}/sandbox.h\"\nfi\n\nif [ -e \"${SDKROOT}/usr/local/include/vproc.h\" -o -e \"${SDKROOT}/usr/include/vproc.h\" ]\nthen\nrm -f \"${CONFIGURATION_TEMP_DIR}/vproc.h\"\nelse\ntouch \"${CONFIGURATION_TEMP_DIR}/vproc.h\"\nfi\n\nif [ -e \"${SDKROOT}/System/Library/Frameworks/IOKit.framework/PrivateHeaders/pwr_mgt/IOPMLibPrivate.h\" ]\nthen\nrm -rf \"${CONFIGURATION_TEMP_DIR}/IOKit\"\nelse\nmkdir -p \"${CONFIGURATION_TEMP_DIR}/IOKit/pwr_mgt\"\ntouch \"${CONFIGURATION_TEMP_DIR}/IOKit/pwr_mgt/IOPMLibPrivate.h\"\nfi\n\nif [ -e \"${SDKROOT}/System/Library/PrivateFrameworks/DeviceToDeviceManager.framework/Headers/DeviceToDeviceManager.h\" ]\nthen\nrm -rf \"${CONFIGURATION_TEMP_DIR}/DeviceToDeviceManager\"\nelse\nmkdir -p \"${CONFIGURATION_TEMP_DIR}/DeviceToDeviceManager\"\necho \"#define NO_D2D 1\" > \"${CONFIGURATION_TEMP_DIR}/DeviceToDeviceManager/DeviceToDeviceManager.h\"\nfi\n\nif [ -e \"${SDKROOT}/System/Library/PrivateFrameworks/WebFilterDNS.framework/Headers/WebFilterDNS.h\" ]\nthen\nrm -rf \"${CONFIGURATION_TEMP_DIR}/WebFilterDNS\"\nelse\nmkdir -p \"${CONFIGURATION_TEMP_DIR}/WebFilterDNS\"\necho \"#define NO_WCF 1\" > \"${CONFIGURATION_TEMP_DIR}/WebFilterDNS/WebFilterDNS.h\"\nfi\n\nif [ -e \"${SDKROOT}/usr/local/include/AWACS.h\" ]\nthen\nrm -f \"${CONFIGURATION_TEMP_DIR}/AWACS.h\"\nrm -f \"${CONFIGURATION_TEMP_DIR}/libAWACS.a\"\nelse\necho \"#define NO_AWACS 1\" > \"${CONFIGURATION_TEMP_DIR}/AWACS.h\"\ntouch \"${CONFIGURATION_TEMP_DIR}/AWACSempty.c\"\nfor i in ${ARCHS}\ndo\nccflags=\"-arch $i $ccflags\"\ndone\ncc ${ccflags} \"${CONFIGURATION_TEMP_DIR}/AWACSempty.c\" -c -o \"${CONFIGURATION_TEMP_DIR}/libAWACS.a\"\nrm -f \"${CONFIGURATION_TEMP_DIR}/AWACSempty.c\"\nfi";
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- buildActionMask = 8;
- files = (
- );
- inputPaths = (
- );
- outputPaths = (
- );
- runOnlyForDeploymentPostprocessing = 1;
- shellPath = /bin/sh;
- shellScript = "# Install plists to tell launchd how to start mDNSResponder and mDNSResponderHelper\nmkdir -p ${DSTROOT}${SYSTEM_LIBRARY_DIR}/LaunchDaemons\n\nif [ ! -z \"${IPHONEOS_DEPLOYMENT_TARGET}\" ] ; then\nplutil -convert binary1 ${DSTROOT}${SYSTEM_LIBRARY_DIR}/LaunchDaemons/com.apple.mDNSResponder.plist\nplutil -convert binary1 ${DSTROOT}${SYSTEM_LIBRARY_DIR}/LaunchDaemons/com.apple.mDNSResponderHelper.plist\nfi\n";
- };
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isa = PBXShellScriptBuildPhase;
buildActionMask = 8;
/* End PBXSourcesBuildPhase section */
/* Begin PBXTargetDependency section */
- 03067D680C83A3830022BE1F /* PBXTargetDependency */ = {
- isa = PBXTargetDependency;
- target = D284BE500ADD80740027CCDF /* mDNSResponder */;
- targetProxy = 03067D670C83A3830022BE1F /* PBXContainerItemProxy */;
- };
- 03067D6A0C83A3890022BE1F /* PBXTargetDependency */ = {
- isa = PBXTargetDependency;
- target = D284BE750ADD80800027CCDF /* mDNSResponder debug */;
- targetProxy = 03067D690C83A3890022BE1F /* PBXContainerItemProxy */;
- };
03067D6C0C83A3920022BE1F /* PBXTargetDependency */ = {
isa = PBXTargetDependency;
target = D284BEA50ADD80920027CCDF /* dns-sd tool */;
targetProxy = 03067D6B0C83A3920022BE1F /* PBXContainerItemProxy */;
};
- 03067D6E0C83A39C0022BE1F /* PBXTargetDependency */ = {
- isa = PBXTargetDependency;
- target = 2E0405EF0C31955500F13B59 /* mDNSResponderHelper */;
- targetProxy = 03067D6D0C83A39C0022BE1F /* PBXContainerItemProxy */;
- };
03067D860C849CC30022BE1F /* PBXTargetDependency */ = {
isa = PBXTargetDependency;
target = 03067D640C83A3700022BE1F /* Build Some */;
target = 213FB21712028A7A002B3A08 /* BonjourEvents */;
targetProxy = 217A4C48138EE14C000A5BA8 /* PBXContainerItemProxy */;
};
+ 3F2EAAA31A5B8608007F5A52 /* PBXTargetDependency */ = {
+ isa = PBXTargetDependency;
+ target = 3F2EAA9F1A5B85FF007F5A52 /* Build Deprecated */;
+ targetProxy = 3F2EAAA21A5B8608007F5A52 /* PBXContainerItemProxy */;
+ };
+ 3F2EAAA51A5B861C007F5A52 /* PBXTargetDependency */ = {
+ isa = PBXTargetDependency;
+ target = D284BE750ADD80800027CCDF /* mDNSResponder debug */;
+ targetProxy = 3F2EAAA41A5B861C007F5A52 /* PBXContainerItemProxy */;
+ };
+ 3F2EAAA71A5B861D007F5A52 /* PBXTargetDependency */ = {
+ isa = PBXTargetDependency;
+ target = D284BE500ADD80740027CCDF /* mDNSResponder */;
+ targetProxy = 3F2EAAA61A5B861D007F5A52 /* PBXContainerItemProxy */;
+ };
+ 3F2EAAA91A5B861E007F5A52 /* PBXTargetDependency */ = {
+ isa = PBXTargetDependency;
+ target = 2E0405EF0C31955500F13B59 /* mDNSResponderHelper */;
+ targetProxy = 3F2EAAA81A5B861E007F5A52 /* PBXContainerItemProxy */;
+ };
4AE4716A0EAFF83800A6C5AD /* PBXTargetDependency */ = {
isa = PBXTargetDependency;
target = 4AE471670EAFF81900A6C5AD /* dns_sd.jar */;
GCC_DYNAMIC_NO_PIC = NO;
GCC_MODEL_TUNING = G5;
INFOPLIST_FILE = "BonjourEvents-Info.plist";
- INSTALL_PATH_ACTUAL = /System/Library/UserEventPlugins/;
+ INSTALL_PATH = /System/Library/UserEventPlugins/;
PREBINDING = NO;
PRODUCT_NAME = BonjourEvents;
PROVISIONING_PROFILE = "";
HEADER_SEARCH_PATHS = "$(SDKROOT)/System/Library/Frameworks/System.framework/PrivateHeaders/";
INSTALLHDRS_COPY_PHASE = YES;
INSTALLHDRS_SCRIPT_PHASE = YES;
- INSTALL_PATH_ACTUAL = /usr/local/lib/system;
+ INSTALL_PATH = /usr/local/lib/system;
PREBINDING = NO;
PRODUCT_NAME = dns_sd;
"SKIP_INSTALL[sdk=iphonesimulator*]" = YES;
"__DARWIN_NON_CANCELABLE=1",
);
HEADER_SEARCH_PATHS = "$(SDKROOT)/System/Library/Frameworks/System.framework/PrivateHeaders/";
- INSTALL_PATH_ACTUAL = /usr/local/lib/system;
+ INSTALL_PATH = /usr/local/lib/system;
PREBINDING = NO;
PRODUCT_NAME = dns_sd_debug;
"SKIP_INSTALL[sdk=iphonesimulator*]" = YES;
"__DARWIN_NON_CANCELABLE=1",
);
HEADER_SEARCH_PATHS = "$(SDKROOT)/System/Library/Frameworks/System.framework/PrivateHeaders/";
- INSTALL_PATH_ACTUAL = /usr/local/lib/system;
+ INSTALL_PATH = /usr/local/lib/system;
PREBINDING = NO;
PRODUCT_NAME = dns_sd_profile;
"SKIP_INSTALL[sdk=iphonesimulator*]" = YES;
"$(SDKROOT)/System/Library/Frameworks/System.framework/PrivateHeaders",
"$(SDKROOT)/usr/local/include",
);
- INSTALL_PATH = "";
- "INSTALL_PATH[sdk=macosx*]" = "";
- INSTALL_PATH_ACTUAL = /usr/sbin;
+ INSTALL_PATH = /usr/sbin;
LD_MAP_FILE_PATH = "$(TARGET_TEMP_DIR)/$(PRODUCT_NAME)-LinkMap-$(CURRENT_VARIANT)-$(CURRENT_ARCH).txt";
LIBRARY_SEARCH_PATHS = "\"${CONFIGURATION_TEMP_DIR}\"";
MACOSX_DEPLOYMENT_TARGET = 10.5;
};
name = Development;
};
+ 3F2EAAA01A5B85FF007F5A52 /* Development */ = {
+ isa = XCBuildConfiguration;
+ buildSettings = {
+ PRODUCT_NAME = "$(TARGET_NAME)";
+ };
+ name = Development;
+ };
4AE471680EAFF81900A6C5AD /* Development */ = {
isa = XCBuildConfiguration;
buildSettings = {
GCC_WARN_ABOUT_RETURN_TYPE = YES;
GCC_WARN_UNINITIALIZED_AUTOS = YES;
GCC_WARN_UNUSED_VARIABLE = YES;
- INSTALL_PATH_ACTUAL = /usr/bin;
+ INSTALL_PATH = /usr/bin;
MACOSX_DEPLOYMENT_TARGET = 10.9;
ONLY_ACTIVE_ARCH = NO;
PRODUCT_NAME = "$(TARGET_NAME)";
GCC_WARN_ABOUT_RETURN_TYPE = YES;
GCC_WARN_UNINITIALIZED_AUTOS = YES;
GCC_WARN_UNUSED_VARIABLE = YES;
- INSTALL_PATH_ACTUAL = /usr/lib;
+ INSTALL_PATH = /usr/lib;
MACOSX_DEPLOYMENT_TARGET = 10.8;
ONLY_ACTIVE_ARCH = NO;
PRODUCT_NAME = "$(TARGET_NAME)_mdns";
"-DUSE_SYSTEMCONFIGURATION_PRIVATE_HEADERS",
"-fwrapv",
);
- "OTHER_LDFLAGS[sdk=macosx*]" = "";
PREBINDING = NO;
STRIP_STYLE = debugging;
WARNING_CFLAGS = (
"$(SDKROOT)/usr/include/libxml2",
"$(SDKROOT)/usr/local/include/",
);
- INSTALL_PATH = "";
- "INSTALL_PATH[sdk=macosx*]" = "";
- INSTALL_PATH_ACTUAL = /usr/sbin;
+ INSTALL_PATH = /usr/sbin;
LIBRARY_SEARCH_PATHS = "\"${CONFIGURATION_TEMP_DIR}\"";
MACOSX_DEPLOYMENT_TARGET = 10.5;
ORDER_FILE = "${SRCROOT}/mDNSResponder.order";
../mDNSShared,
"${SYSTEM_LIBRARY_DIR}/Frameworks/System.framework/PrivateHeaders",
);
- INSTALL_PATH_ACTUAL = /usr/bin;
+ INSTALL_PATH = /usr/bin;
OTHER_CFLAGS = "-no-cpp-precomp";
OTHER_LDFLAGS = "";
OTHER_REZFLAGS = "";
"${SYSTEM_LIBRARY_DIR}/Frameworks/JavaVM.framework/Versions/1.3.1/Headers",
"${PROJECT_DERIVED_FILE_DIR}",
);
- INSTALL_PATH_ACTUAL = /usr/lib/java;
+ INSTALL_PATH = /usr/lib/java;
LIBRARY_STYLE = DYNAMIC;
MACH_O_TYPE = mh_dylib;
OTHER_CFLAGS = "";
"${CONFIGURATION_TEMP_DIR}",
/System/Library/Frameworks/System.Framework/PrivateHeaders,
);
- INSTALL_PATH_ACTUAL = /usr/sbin;
+ INSTALL_PATH = /usr/sbin;
LIBRARY_SEARCH_PATHS = "\"${CONFIGURATION_TEMP_DIR}\"";
MACOSX_DEPLOYMENT_TARGET = 10.5;
OTHER_CFLAGS = (
CONFIGURATION_TEMP_DIR = "${BUILD_DIR}/mDNSResponder.build";
GCC_DYNAMIC_NO_PIC = NO;
GCC_GENERATE_DEBUGGING_SYMBOLS = YES;
- INSTALL_PATH_ACTUAL = "/Library/Application Support/Bonjour";
+ INSTALL_PATH = "/Library/Application Support/Bonjour";
MACOSX_DEPLOYMENT_TARGET = 10.5;
OTHER_CFLAGS = "";
OTHER_LDFLAGS = "";
GCC_GENERATE_DEBUGGING_SYMBOLS = YES;
GCC_SYMBOLS_PRIVATE_EXTERN = NO;
INFOPLIST_FILE = "PreferencePane/Info-PreferencePane.plist";
- INSTALL_PATH_ACTUAL = /AppleInternal/Library/PreferencePanes;
+ INSTALL_PATH = /AppleInternal/Library/PreferencePanes;
MACOSX_DEPLOYMENT_TARGET = 10.5;
OTHER_CFLAGS = "";
OTHER_LDFLAGS = "-twolevel_namespace";
"__DARWIN_NON_CANCELABLE=1",
);
HEADER_SEARCH_PATHS = "$(SDKROOT)/System/Library/Frameworks/System.framework/PrivateHeaders/";
- INSTALL_PATH_ACTUAL = /usr/lib/system;
+ INSTALL_PATH = /usr/lib/system;
+ INTERPOSITION_SIM_SUFFIX = "";
+ "INTERPOSITION_SIM_SUFFIX[sdk=iphonesimulator*]" = _sim;
LINK_WITH_STANDARD_LIBRARIES = NO;
OTHER_LDFLAGS = (
"-Wl,-umbrella,System",
"-L/usr/lib/system",
"-ldyld",
"-lcompiler_rt",
- "-lsystem_kernel",
- "-lsystem_platform",
- "-lsystem_pthread",
+ "-lsystem$(INTERPOSITION_SIM_SUFFIX)_kernel",
+ "-lsystem$(INTERPOSITION_SIM_SUFFIX)_platform",
+ "-lsystem$(INTERPOSITION_SIM_SUFFIX)_pthread",
"-lsystem_malloc",
"-lsystem_c",
"-lsystem_blocks",
"-llaunch",
"-lsystem_asl",
);
- "OTHER_LDFLAGS[sdk=iphonesimulator*]" = (
- "-Wl,-umbrella,System",
- "-L/usr/lib/system",
- "-ldyld_sim",
- "-lcompiler_rt_sim",
- "-lsystem_sim_c",
- "-lsystem_sim_blocks",
- "-ldispatch",
- "-Wl,-upward-lSystem",
- );
PRODUCT_NAME = libsystem_dnssd_debug;
- "PRODUCT_NAME[sdk=iphonesimulator*]" = libsystem_sim_dnssd_debug;
};
name = Development;
};
);
GENERATE_PROFILING_CODE = YES;
HEADER_SEARCH_PATHS = "$(SDKROOT)/System/Library/Frameworks/System.framework/PrivateHeaders/";
- INSTALL_PATH_ACTUAL = /usr/lib/system;
+ INSTALL_PATH = /usr/lib/system;
+ INTERPOSITION_SIM_SUFFIX = "";
+ "INTERPOSITION_SIM_SUFFIX[sdk=iphonesimulator*]" = _sim;
LINK_WITH_STANDARD_LIBRARIES = NO;
OTHER_LDFLAGS = (
"-Wl,-umbrella,System",
"-L/usr/lib/system",
"-ldyld",
"-lcompiler_rt",
- "-lsystem_kernel",
- "-lsystem_platform",
- "-lsystem_pthread",
+ "-lsystem$(INTERPOSITION_SIM_SUFFIX)_kernel",
+ "-lsystem$(INTERPOSITION_SIM_SUFFIX)_platform",
+ "-lsystem$(INTERPOSITION_SIM_SUFFIX)_pthread",
"-lsystem_malloc",
"-lsystem_c",
"-lsystem_blocks",
"-llaunch",
"-lsystem_asl",
);
- "OTHER_LDFLAGS[sdk=iphonesimulator*]" = (
- "-Wl,-umbrella,System",
- "-L/usr/lib/system",
- "-ldyld_sim",
- "-lcompiler_rt_sim",
- "-lsystem_sim_c",
- "-lsystem_sim_blocks",
- "-ldispatch",
- "-Wl,-upward-lSystem",
- );
PRODUCT_NAME = libsystem_dnssd_profile;
- "PRODUCT_NAME[sdk=iphonesimulator*]" = libsystem_sim_dnssd_profile;
};
name = Development;
};
HEADER_SEARCH_PATHS = "$(SDKROOT)/System/Library/Frameworks/System.framework/PrivateHeaders/";
INSTALLHDRS_COPY_PHASE = YES;
INSTALLHDRS_SCRIPT_PHASE = YES;
- INSTALL_PATH_ACTUAL = /usr/lib/system;
+ INSTALL_PATH = /usr/lib/system;
+ INTERPOSITION_SIM_SUFFIX = "";
+ "INTERPOSITION_SIM_SUFFIX[sdk=iphonesimulator*]" = _sim;
LINK_WITH_STANDARD_LIBRARIES = NO;
OTHER_LDFLAGS = (
"-Wl,-umbrella,System",
"-L/usr/lib/system",
"-ldyld",
"-lcompiler_rt",
- "-lsystem_kernel",
- "-lsystem_platform",
- "-lsystem_pthread",
+ "-lsystem$(INTERPOSITION_SIM_SUFFIX)_kernel",
+ "-lsystem$(INTERPOSITION_SIM_SUFFIX)_platform",
+ "-lsystem$(INTERPOSITION_SIM_SUFFIX)_pthread",
"-lsystem_malloc",
"-lsystem_c",
"-lsystem_blocks",
"-llaunch",
"-lsystem_asl",
);
- "OTHER_LDFLAGS[sdk=iphonesimulator*]" = (
- "-Wl,-umbrella,System",
- "-L/usr/lib/system",
- "-ldyld_sim",
- "-lcompiler_rt_sim",
- "-lsystem_sim_c",
- "-lsystem_sim_blocks",
- "-ldispatch",
- "-Wl,-upward-lSystem",
- );
PRODUCT_NAME = libsystem_dnssd;
- "PRODUCT_NAME[sdk=iphonesimulator*]" = libsystem_sim_dnssd;
};
name = Development;
};
defaultConfigurationIsVisible = 0;
defaultConfigurationName = Development;
};
+ 3F2EAAA11A5B85FF007F5A52 /* Build configuration list for PBXAggregateTarget "Build Deprecated" */ = {
+ isa = XCConfigurationList;
+ buildConfigurations = (
+ 3F2EAAA01A5B85FF007F5A52 /* Development */,
+ );
+ defaultConfigurationIsVisible = 0;
+ defaultConfigurationName = Development;
+ };
4AE471770EAFF84000A6C5AD /* Build configuration list for PBXLegacyTarget "dns_sd.jar" */ = {
isa = XCConfigurationList;
buildConfigurations = (
# -*- tab-width: 4 -*-
#
-# Copyright (c) 2002-2004, Apple Computer, Inc. All rights reserved.
+# Copyright (c) 2002-2004, 2015, Apple Computer, Inc. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
# If "make os=xxx" gives lots of errors like "Missing dependency operator",
# then try typing "gmake os=xxx" instead.
#
-# This Makefile builds an mDNSResponder daemon and a libdns_sd.so shared library
-# for Linux. It also builds several example programs for embedded systems.
+# This Makefile builds an mDNSResponder daemon and a libdns_sd.so shared library
+# for Linux. It also builds several example programs for embedded systems.
#
# Make with no arguments to build all production targets.
# 'make DEBUG=1' to build debugging targets.
CC = @cc
BISON = @bison
FLEX = @flex
+ST = @strip
LD = ld -shared
CP = cp
RM = rm
# Set up diverging paths for debug vs. prod builds
DEBUG=0
ifeq ($(DEBUG),1)
-CFLAGS_DEBUG = -g -DMDNS_DEBUGMSGS=2
+CFLAGS_DEBUG = -g -DMDNS_DEBUGMSGS=2
OBJDIR = objects/debug
BUILDDIR = build/debug
-STRIP = echo
+STRIP = echo
else
# We use -Os for two reasons:
# 1. We want to make small binaries, suitable for putting into hardware devices
# 2. Some of the code analysis warnings only work when some form of optimization is enabled
-CFLAGS_DEBUG = -Os -DMDNS_DEBUGMSGS=0
+CFLAGS_DEBUG = -Os -DMDNS_DEBUGMSGS=0
OBJDIR ?= objects/prod
BUILDDIR ?= build/prod
-STRIP = strip -S
+STRIP = $(ST) -S
endif
# Configure per-OS peculiarities
LINKOPTS = -lsocket -lnsl -lresolv
JAVACFLAGS_OS += -I$(JDK)/include/solaris
ifneq ($(DEBUG),1)
-STRIP = strip
+STRIP = $(ST)
endif
else
# any target that contains the string "linux"
ifeq ($(findstring linux,$(os)),linux)
CFLAGS_OS = -D_GNU_SOURCE -DHAVE_IPV6 -DNOT_HAVE_SA_LEN -DUSES_NETLINK -DHAVE_LINUX -DTARGET_OS_LINUX -fno-strict-aliasing
-LD = gcc -shared
+LD = $(CC) -shared
FLEXFLAGS_OS = -l
JAVACFLAGS_OS += -I$(JDK)/include/linux
LINKOPTS = -lSystem
LDSUFFIX = dylib
JDK = /System/Library/Frameworks/JavaVM.framework/Home
-JAVACFLAGS_OS = -dynamiclib -I/System/Library/Frameworks/JavaVM.framework/Headers -framework JavaVM
+JAVACFLAGS_OS = -dynamiclib -I/System/Library/Frameworks/JavaVM.framework/Headers -framework JavaVM
else
$(error ERROR: Must specify target OS on command-line, e.g. "make os=x [target]".\
-Supported operating systems include: x, linux, linux-uclibc, netbsd, freebsd, openbsd, solaris)
+Supported operating systems include: x, linux, linux-uclibc, netbsd, freebsd, openbsd, solaris)
endif
endif
endif
static int FilterInterface = 0;
static FilterList *Filters;
#define ExactlyOneFilter (Filters && !Filters->next)
+static mDNSBool AddressType = mDNSAddrType_IPv4;
static int NumPktQ, NumPktL, NumPktR, NumPktB; // Query/Legacy/Response/Bad
static int NumProbes, NumGoodbyes, NumQuestions, NumLegacy, NumAnswers, NumAdditionals;
mDNSlocal void DisplayPacketHeader(mDNS *const m, const DNSMessage *const msg, const mDNSu8 *const end, const mDNSAddr *srcaddr, mDNSIPPort srcport, const mDNSAddr *dstaddr, const mDNSInterfaceID InterfaceID)
{
- const char *const ptype = (msg->h.flags.b[0] & kDNSFlag0_QR_Response) ? "-R- " :
+ const char *const ptype = (msg->h.flags.b[0] & kDNSFlag0_QR_Response) ? "-R- " :
(srcport.NotAnInteger == MulticastDNSPort.NotAnInteger) ? "-Q- " : "-LQ-";
-
+ const unsigned length = end - (mDNSu8 *)msg;
struct timeval tv;
struct tm tm;
const mDNSu32 index = mDNSPlatformInterfaceIndexfromInterfaceID(m, InterfaceID, mDNSfalse);
mprintf("\n%d:%02d:%02d.%06d Interface %d/%s\n", tm.tm_hour, tm.tm_min, tm.tm_sec, tv.tv_usec, index, if_name);
mprintf("%#-16a %s Q:%3d Ans:%3d Auth:%3d Add:%3d Size:%5d bytes",
- srcaddr, ptype, msg->h.numQuestions, msg->h.numAnswers, msg->h.numAuthorities, msg->h.numAdditionals, end - (mDNSu8 *)msg);
+ srcaddr, ptype, msg->h.numQuestions, msg->h.numAnswers, msg->h.numAuthorities, msg->h.numAdditionals, length);
if (msg->h.id.NotAnInteger) mprintf(" ID:%u", mDNSVal16(msg->h.id));
if (msg->h.flags.b[0] & kDNSFlag0_QR_Response) mprintf(" Truncated");
else mprintf(" Truncated (KA list continues in next packet)");
}
+
mprintf("\n");
+
+ if (length < sizeof(DNSMessageHeader) + NormalMaxDNSMessageData - 192)
+ if (msg->h.flags.b[0] & kDNSFlag0_TC)
+ mprintf("%#-16a **** WARNING: Packet suspiciously small. Payload size (excluding IP and UDP headers)\n"
+ "%#-16a **** should usually be closer to %d bytes before truncation becomes necessary.\n",
+ srcaddr, srcaddr, sizeof(DNSMessageHeader) + NormalMaxDNSMessageData);
+}
+
+mDNSlocal void DisplaySizeCheck(const DNSMessage *const msg, const mDNSu8 *const end, const mDNSAddr *srcaddr, int num_opts)
+{
+ const unsigned length = end - (mDNSu8 *)msg;
+ const int num_records = msg->h.numAnswers + msg->h.numAuthorities + msg->h.numAdditionals - num_opts;
+
+ if (length > sizeof(DNSMessageHeader) + NormalMaxDNSMessageData)
+ if (num_records > 1)
+ mprintf("%#-16a **** ERROR: Oversized packet with %d records.\n"
+ "%#-16a **** Many network devices cannot receive packets larger than %d bytes.\n"
+ "%#-16a **** To minimize interoperability failures, oversized packets MUST be limited to a single resource record.\n",
+ srcaddr, num_records, srcaddr, 40 + 8 + sizeof(DNSMessageHeader) + NormalMaxDNSMessageData, srcaddr);
}
mDNSlocal void DisplayResourceRecord(const mDNSAddr *const srcaddr, const char *const op, const ResourceRecord *const pktrr)
mDNSlocal void DisplayError(const mDNSAddr *srcaddr, const mDNSu8 *ptr, const mDNSu8 *const end, char *msg)
{
- mprintf("%#-16a **** ERROR: FAILED TO READ %s **** \n", srcaddr, msg);
+ mprintf("%#-16a **** ERROR: FAILED TO READ %s ****\n", srcaddr, msg);
HexDump(ptr, end);
}
const mDNSAddr *srcaddr, mDNSIPPort srcport, const mDNSAddr *dstaddr, const mDNSInterfaceID InterfaceID)
{
int i;
+ int num_opts = 0;
const mDNSu8 *ptr = msg->data;
const mDNSu8 *auth = LocateAuthorities(msg, end);
mDNSBool MQ = (srcport.NotAnInteger == MulticastDNSPort.NotAnInteger);
DisplayPacketHeader(m, msg, end, srcaddr, srcport, dstaddr, InterfaceID);
if (msg->h.id.NotAnInteger != 0xFFFF)
{
- if (MQ) NumPktQ++;else NumPktL++;
+ if (MQ) NumPktQ++; else NumPktL++;
}
for (i=0; i<msg->h.numQuestions; i++)
ptr = GetLargeResourceRecord(m, msg, ptr, end, InterfaceID, kDNSRecordTypePacketAns, &pkt);
if (!ptr) { DisplayError(srcaddr, ep, end, "KNOWN ANSWER"); return; }
DisplayResourceRecord(srcaddr, "(KA)", &pkt.r.resrec);
+ if (pkt.r.resrec.rrtype == kDNSType_OPT)
+ { num_opts++; mprintf("%#-16a **** ERROR: OPT RECORD IN ANSWER SECTION ****\n", srcaddr); }
// In the case of queries with long multi-packet KA lists, we count each subsequent KA packet
// the same as a single query, to more accurately reflect the burden on the network
// After we display an Update record with its matching question (above) we zero out its type and class
// If any remain that haven't been zero'd out, display them here
if (pkt.r.resrec.rrtype || pkt.r.resrec.rrclass) DisplayResourceRecord(srcaddr, "(AU)", &pkt.r.resrec);
+ if (pkt.r.resrec.rrtype == kDNSType_OPT)
+ { num_opts++; mprintf("%#-16a **** ERROR: OPT RECORD IN AUTHORITY SECTION ****\n", srcaddr); }
}
for (i=0; i<msg->h.numAdditionals; i++)
ptr = GetLargeResourceRecord(m, msg, ptr, end, InterfaceID, kDNSRecordTypePacketAdd, &pkt);
if (!ptr) { DisplayError(srcaddr, ep, end, "ADDITIONAL"); return; }
DisplayResourceRecord(srcaddr, pkt.r.resrec.rrtype == kDNSType_OPT ? "(OP)" : "(AD)", &pkt.r.resrec);
+ if (pkt.r.resrec.rrtype == kDNSType_OPT) num_opts++;
}
+ DisplaySizeCheck(msg, end, srcaddr, num_opts);
+
+ // We don't hexdump the DNSMessageHeader here because those six fields (id, flags, numQuestions, numAnswers, numAuthorities, numAdditionals)
+ // have already been swapped to host byte order and displayed, so including them in the hexdump is confusing
+ if (num_opts > 1) { mprintf("%#-16a **** ERROR: MULTIPLE OPT RECORDS ****\n", srcaddr); HexDump(msg->data, end); }
+
if (entry) AnalyseHost(m, entry, InterfaceID);
}
const mDNSAddr *srcaddr, mDNSIPPort srcport, const mDNSAddr *dstaddr, const mDNSInterfaceID InterfaceID)
{
int i;
+ int num_opts = 0;
const mDNSu8 *ptr = msg->data;
HostEntry *entry = GotPacketFromHost(srcaddr, HostPkt_R, msg->h.id);
LargeCacheRecord pkt;
DisplayResourceRecord(srcaddr, "(DE)", &pkt.r.resrec);
recordstat(entry, pkt.r.resrec.name, OP_goodbye, pkt.r.resrec.rrtype);
}
+ if (pkt.r.resrec.rrtype == kDNSType_OPT)
+ { num_opts++; mprintf("%#-16a **** ERROR: OPT RECORD IN ANSWER SECTION ****\n", srcaddr); }
}
for (i=0; i<msg->h.numAuthorities; i++)
const mDNSu8 *ep = ptr;
ptr = GetLargeResourceRecord(m, msg, ptr, end, InterfaceID, kDNSRecordTypePacketAuth, &pkt);
if (!ptr) { DisplayError(srcaddr, ep, end, "AUTHORITY"); return; }
- if (pkt.r.resrec.rrtype != kDNSType_NSEC3)
+ DisplayResourceRecord(srcaddr, "(AU)", &pkt.r.resrec);
+ if (pkt.r.resrec.rrtype == kDNSType_OPT)
+ { num_opts++; mprintf("%#-16a **** ERROR: OPT RECORD IN AUTHORITY SECTION ****\n", srcaddr); }
+ else if (pkt.r.resrec.rrtype != kDNSType_NSEC3)
mprintf("%#-16a (?) **** ERROR: SHOULD NOT HAVE AUTHORITY IN mDNS RESPONSE **** %-5s %##s\n",
- srcaddr, DNSTypeName(pkt.r.resrec.rrtype), pkt.r.resrec.name->c);
+ srcaddr, DNSTypeName(pkt.r.resrec.rrtype), pkt.r.resrec.name->c);
}
for (i=0; i<msg->h.numAdditionals; i++)
ptr = GetLargeResourceRecord(m, msg, ptr, end, InterfaceID, kDNSRecordTypePacketAdd, &pkt);
if (!ptr) { DisplayError(srcaddr, ep, end, "ADDITIONAL"); return; }
NumAdditionals++;
+ if (pkt.r.resrec.rrtype == kDNSType_OPT) num_opts++;
DisplayResourceRecord(srcaddr,
pkt.r.resrec.rrtype == kDNSType_OPT ? "(OP)" : (pkt.r.resrec.RecordType & kDNSRecordTypePacketUniqueMask) ? "(AD)" : "(AD+)",
&pkt.r.resrec);
if (entry) RecordHostInfo(entry, &pkt.r.resrec);
}
+ DisplaySizeCheck(msg, end, srcaddr, num_opts);
+
+ // We don't hexdump the DNSMessageHeader here because those six fields (id, flags, numQuestions, numAnswers, numAuthorities, numAdditionals)
+ // have already been swapped to host byte order and displayed, so including them in the hexdump is confusing
+ if (num_opts > 1) { mprintf("%#-16a **** ERROR: MULTIPLE OPT RECORDS ****\n", srcaddr); HexDump(msg->data, end); }
+
if (entry) AnalyseHost(m, entry, InterfaceID);
}
mDNSlocal mDNSBool AddressMatchesFilterList(const mDNSAddr *srcaddr)
{
FilterList *f;
- if (!Filters) return(srcaddr->type == mDNSAddrType_IPv4);
+ if (!Filters) return(srcaddr->type == AddressType);
for (f=Filters; f; f=f->next) if (mDNSSameAddress(srcaddr, &f->FilterAddr)) return(mDNStrue);
return(mDNSfalse);
}
if (i+1 < argc && !strcmp(argv[i], "-i") && atoi(argv[i+1]))
{
FilterInterface = atoi(argv[i+1]);
- i += 2;
+ i += 1;
printf("Monitoring interface %d\n", FilterInterface);
}
+ else if (!strcmp(argv[i], "-6"))
+ {
+ AddressType = mDNSAddrType_IPv6;
+ printf("Monitoring IPv6 traffic\n");
+ }
else
{
struct in_addr s4;
static sigset_t gEventSignalSet; // Signals which event loop listens for
static sigset_t gEventSignals; // Signals which were received while inside loop
+static PosixNetworkInterface *gRecentInterfaces;
+
// ***************************************************************************
// Globals (for debugging)
while ((intf != NULL) && (mDNSInterfaceID) intf != id)
intf = (PosixNetworkInterface *)(intf->coreIntf.next);
+ if (intf) return intf->index;
+
+ // If we didn't find the interface, check the RecentInterfaces list as well
+ intf = gRecentInterfaces;
+ while ((intf != NULL) && (mDNSInterfaceID) intf != id)
+ intf = (PosixNetworkInterface *)(intf->coreIntf.next);
+
return intf ? intf->index : 0;
}
#if HAVE_IPV6
if (intf->multicastSocket6 != -1) assert(close(intf->multicastSocket6) == 0);
#endif
- free(intf);
+
+ // Move interface to the RecentInterfaces list for a minute
+ intf->LastSeen = mDNSPlatformUTC();
+ intf->coreIntf.next = &gRecentInterfaces->coreIntf;
+ gRecentInterfaces = intf;
}
// Grab the first interface, deregister it, free it, and repeat until done.
#error This platform has no way to avoid address busy errors on multicast.
#endif
if (err < 0) { err = errno; perror("setsockopt - SO_REUSExxxx"); }
+
+ // Enable inbound packets on IFEF_AWDL interface.
+ // Only done for multicast sockets, since we don't expect unicast socket operations
+ // on the IFEF_AWDL interface. Operation is a no-op for other interface types.
+ #ifndef SO_RECV_ANYIF
+ #define SO_RECV_ANYIF 0x1104 /* unrestricted inbound processing */
+ #endif
+ if (setsockopt(*sktPtr, SOL_SOCKET, SO_RECV_ANYIF, &kOn, sizeof(kOn)) < 0) perror("setsockopt - SO_RECV_ANYIF");
}
// We want to receive destination addresses and interface identifiers.
// Clean up.
if (intfList != NULL) free_ifi_info(intfList);
+
+ // Clean up any interfaces that have been hanging around on the RecentInterfaces list for more than a minute
+ PosixNetworkInterface **ri = &gRecentInterfaces;
+ const mDNSs32 utc = mDNSPlatformUTC();
+ while (*ri)
+ {
+ PosixNetworkInterface *pi = *ri;
+ if (utc - pi->LastSeen < 60) ri = (PosixNetworkInterface **)&pi->coreIntf.next;
+ else { *ri = (PosixNetworkInterface *)pi->coreIntf.next; free(pi); }
+ }
+
return err;
}
#endif
}
+// This is used internally by InterfaceChangeCallback.
+// It's also exported so that the Standalone Responder (mDNSResponderPosix)
+// can call it in response to a SIGHUP (mainly for debugging purposes).
mDNSexport mStatus mDNSPlatformPosixRefreshInterfaceList(mDNS *const m)
{
int err;
+ // This is a pretty heavyweight way to process interface changes --
+ // destroying the entire interface list and then making fresh one from scratch.
+ // We should make it like the OS X version, which leaves unchanged interfaces alone.
ClearInterfaceList(m);
err = SetupInterfaceList(m);
return PosixErrorToStatus(err);
struct PosixNetworkInterface
{
- NetworkInterfaceInfo coreIntf;
+ NetworkInterfaceInfo coreIntf; // MUST be the first element in this structure
+ mDNSs32 LastSeen;
const char * intfName;
PosixNetworkInterface * aliasIntf;
int index;
*/
#ifndef _DNS_SD_H
-#define _DNS_SD_H 5610101
+#define _DNS_SD_H 5670000
#ifdef __cplusplus
extern "C" {
const void *rdata
);
-
/*********************************************************************************************
*
* NAT Port Mapping
return(kDNSServiceErr_Unsupported);
}
-
#endif // !MDNS_BUILDINGSTUBLIBRARY
// callbacks when we return from this function. Setting ProcessReply to NULL
// provides extra protection.
sdRef->ProcessReply = NULL;
+ shutdown(sdRef->sockfd, SHUT_WR);
dispatch_source_cancel(sdRef->disp_source);
dispatch_release(sdRef->disp_source);
sdRef->disp_source = NULL;
return err;
}
-
static void handle_port_mapping_response(DNSServiceOp *const sdr, const CallbackHeader *const cbh, const char *data, const char *const end)
{
union { uint32_t l; u_char b[4]; } addr;
projects / apple / mdnsresponder.git / commitdiff
