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-rw-r--r--main/ipsec-tools/70-rcvbuf-size.patch33
1 files changed, 33 insertions, 0 deletions
diff --git a/main/ipsec-tools/70-rcvbuf-size.patch b/main/ipsec-tools/70-rcvbuf-size.patch
new file mode 100644
index 0000000000..34e295decf
--- /dev/null
+++ b/main/ipsec-tools/70-rcvbuf-size.patch
@@ -0,0 +1,33 @@
+Index: src/racoon/isakmp.c
+===================================================================
+RCS file: /cvsroot/src/crypto/dist/ipsec-tools/src/racoon/isakmp.c,v
+retrieving revision 1.60
+diff -u -r1.60 isakmp.c
+--- a/src/racoon/isakmp.c 3 Sep 2009 09:29:07 -0000 1.60
++++ b/src/racoon/isakmp.c 20 Aug 2010 11:59:20 -0000
+@@ -1579,6 +1579,7 @@
+ #ifdef ENABLE_NATT
+ int option = -1;
+ #endif
++ int rcvSize = 16384;
+
+ /* warn if wildcard address - should we forbid this? */
+ switch (addr->sa_family) {
+@@ -1706,6 +1707,17 @@
+ goto err;
+ }
+
++ /* set receive buffer size - shouldn't be too large otherwise
++ * we can acommodate too long backbuffer of packets and not
++ * able to handle any packets in real time */
++ if (setsockopt(fd, SOL_SOCKET, SO_RCVBUF,
++ (void*) &rcvSize, sizeof(rcvSize)) < 0) {
++ plog(LLV_ERROR, LOCATION, NULL,
++ "failed to set SO_RCVBUF size (%s).\n",
++ strerror(errno));
++ /* soft-error, continue even if this failed */
++ }
++
+ if (setsockopt_bypass(fd, addr->sa_family) < 0)
+ goto err;
+