| From a8accffb95267490b50401c8b65ec18db57b5ef5 Mon Sep 17 00:00:00 2001 |
| From: Nate Karstens <nate.karstens@garmin.com> |
| Date: Wed, 9 Aug 2017 09:16:58 -0500 |
| Subject: [PATCH 7/8] Mark deleted interfaces as being changed |
| |
| Netlink notification handling ignores messages for deleted links, |
| RTM_DELLINK. It does handle RTM_GETLINK. According to libnl docu- |
| mentation (http://www.infradead.org/~tgr/libnl/doc/route.html) |
| RTM_DELLINK can be sent by the kernel, but RTM_GETLINK cannot. |
| There was likely a mixup in the original implementation, so this |
| change replaces handling for RTM_GETLINK with RTM_DELLINK. |
| |
| Testing and Verification Instructions: |
| 1. Use ip-link to add and remove a VLAN interface and verify |
| that mDNSResponder handles the deleted link. |
| |
| Upstream-Status: Submitted [dts@apple.com] |
| |
| Signed-off-by: Nate Karstens <nate.karstens@garmin.com> |
| Signed-off-by: Alex Kiernan <alex.kiernan@gmail.com> |
| --- |
| mDNSPosix/mDNSPosix.c | 2 +- |
| 1 file changed, 1 insertion(+), 1 deletion(-) |
| |
| Index: mDNSResponder/mDNSPosix/mDNSPosix.c |
| =================================================================== |
| --- mDNSResponder.orig/mDNSPosix/mDNSPosix.c |
| +++ mDNSResponder/mDNSPosix/mDNSPosix.c |
| @@ -1714,7 +1714,7 @@ mDNSlocal void ProcessRoutingNo |
| #endif |
| |
| // Process the NetLink message |
| - if (pNLMsg->nlmsg_type == RTM_GETLINK || pNLMsg->nlmsg_type == RTM_NEWLINK) |
| + if (pNLMsg->nlmsg_type == RTM_DELLINK || pNLMsg->nlmsg_type == RTM_NEWLINK) |
| AddInterfaceIndexToList(changedInterfaces, ((struct ifinfomsg*) NLMSG_DATA(pNLMsg))->ifi_index); |
| else if (pNLMsg->nlmsg_type == RTM_DELADDR || pNLMsg->nlmsg_type == RTM_NEWADDR) |
| AddInterfaceIndexToList(changedInterfaces, ((struct ifaddrmsg*) NLMSG_DATA(pNLMsg))->ifa_index); |