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a44430fe91
Apple's default implementation of the Posix backend for mDNSResponder has a number of weaknesses. Address several of them, most notably: * Improve interface tracking, preventing confusion to mdns's state machine. Prevents spurious removal/republication cycles whenever network interfaces are added or removed. * Support network interfaces whose indeces are great than 31. Indices grow past that range surprisingly quickly, especially with multi- homed, mobile, wifi, Bluetooth, VPN, VLANs, or other interfaces present. * Correctly handle edge cases during removal of a network interface. The fixes are kept as a patch series for clarity. Signed-off-by: Matt Hoosier <matt.hoosier@garmin.com> Signed-off-by: Khem Raj <raj.khem@gmail.com>
51 lines
1.6 KiB
Diff
51 lines
1.6 KiB
Diff
From 71a7c728ae0d8143b66aa40decca74ebaa9aa2ce Mon Sep 17 00:00:00 2001
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From: Nate Karstens <nate.karstens@garmin.com>
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Date: Wed, 28 Jun 2017 17:30:00 -0500
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Subject: [PATCH 03/11] Track interface socket family
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Tracks the socket family associated with the interface.
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Upstream-Status: Submitted [dts@apple.com]
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Signed-off-by: Nate Karstens <nate.karstens@garmin.com>
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---
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mDNSPosix/mDNSPosix.c | 1 +
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mDNSPosix/mDNSPosix.h | 2 ++
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2 files changed, 3 insertions(+)
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diff --git a/mDNSPosix/mDNSPosix.c b/mDNSPosix/mDNSPosix.c
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index 5e5b2cd..8fe22be 100644
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--- a/mDNSPosix/mDNSPosix.c
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+++ b/mDNSPosix/mDNSPosix.c
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@@ -918,6 +918,7 @@ mDNSlocal int SetupOneInterface(mDNS *const m, struct sockaddr *intfAddr, struct
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// Set up the extra fields in PosixNetworkInterface.
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assert(intf->intfName != NULL); // intf->intfName already set up above
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intf->index = intfIndex;
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+ intf->sa_family = intfAddr->sa_family;
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intf->multicastSocket4 = -1;
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#if HAVE_IPV6
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intf->multicastSocket6 = -1;
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diff --git a/mDNSPosix/mDNSPosix.h b/mDNSPosix/mDNSPosix.h
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index ca60d80..f77c185 100644
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--- a/mDNSPosix/mDNSPosix.h
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+++ b/mDNSPosix/mDNSPosix.h
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@@ -19,6 +19,7 @@
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#define __mDNSPlatformPosix_h
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#include <signal.h>
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+#include <sys/socket.h>
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#include <sys/time.h>
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#ifdef __cplusplus
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@@ -40,6 +41,7 @@ struct PosixNetworkInterface
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const char * intfName;
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PosixNetworkInterface * aliasIntf;
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int index;
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+ sa_family_t sa_family;
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int multicastSocket4;
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#if HAVE_IPV6
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int multicastSocket6;
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--
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2.17.1
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