1 files changed, 72 insertions, 0 deletions
diff --git a/net-dns/unbound/files/0001-fix-fail-to-start-on-Linux-LTS-3.14.X-ignore.patch b/net-dns/unbound/files/0001-fix-fail-to-start-on-Linux-LTS-3.14.X-ignore.patch
new file mode 100644
index 000000000000..c1be28cbc0db
--- /dev/null
+++ b/net-dns/unbound/files/0001-fix-fail-to-start-on-Linux-LTS-3.14.X-ignore.patch
@@ -0,0 +1,72 @@
+From 858da540f70a4411ad8fbe7144cef6ce9da18f89 Mon Sep 17 00:00:00 2001
+From: wouter <wouter@be551aaa-1e26-0410-a405-d3ace91eadb9>
+Date: Mon, 5 Jan 2015 13:51:22 +0000
+Subject: [PATCH] - Fix #634: fix fail to start on Linux LTS 3.14.X, ignores
+ missing   IP_MTU_DISCOVER OMIT option.
+
+--- a/services/listen_dnsport.c
++++ b/services/listen_dnsport.c
+@@ -368,29 +368,47 @@ create_udp_sock(int family, int socktype, struct sockaddr* addr,
+  * (and also uses the interface mtu to determine the size of the packets).
+  * So there won't be any EMSGSIZE error.  Against DNS fragmentation attacks.
+  * FreeBSD already has same semantics without setting the option. */
+-#    if defined(IP_PMTUDISC_OMIT)
+-		int action = IP_PMTUDISC_OMIT;
+-#    else
+-		int action = IP_PMTUDISC_DONT;
+-#    endif
++		int omit_set = 0;
++		int action;
++#   if defined(IP_PMTUDISC_OMIT)
++		action = IP_PMTUDISC_OMIT;
+ 		if (setsockopt(s, IPPROTO_IP, IP_MTU_DISCOVER, 
+ 			&action, (socklen_t)sizeof(action)) < 0) {
+-			log_err("setsockopt(..., IP_MTU_DISCOVER, "
+-#    if defined(IP_PMTUDISC_OMIT)
+-				"IP_PMTUDISC_OMIT"
++
++			if (errno != EINVAL) {
++				log_err("setsockopt(..., IP_MTU_DISCOVER, IP_PMTUDISC_OMIT...) failed: %s",
++					strerror(errno));
++
++#    ifndef USE_WINSOCK
++				close(s);
+ #    else
+-				"IP_PMTUDISC_DONT"
++				closesocket(s);
+ #    endif
+-				"...) failed: %s",
+-				strerror(errno));
++				*noproto = 0;
++				*inuse = 0;
++				return -1;
++			}
++		}
++		else
++		{
++		    omit_set = 1;
++		}
++#   endif
++		if (omit_set == 0) {
++   			action = IP_PMTUDISC_DONT;
++			if (setsockopt(s, IPPROTO_IP, IP_MTU_DISCOVER,
++				&action, (socklen_t)sizeof(action)) < 0) {
++				log_err("setsockopt(..., IP_MTU_DISCOVER, IP_PMTUDISC_DONT...) failed: %s",
++					strerror(errno));
+ #    ifndef USE_WINSOCK
+-			close(s);
++				close(s);
+ #    else
+-			closesocket(s);
++				closesocket(s);
+ #    endif
+-			*noproto = 0;
+-			*inuse = 0;
+-			return -1;
++				*noproto = 0;
++				*inuse = 0;
++				return -1;
++			}
+ 		}
+ #  elif defined(IP_DONTFRAG)
+ 		int off = 0;