From 26498e8bb3855ad11800a018c993debd7eebe752 Mon Sep 17 00:00:00 2001
From: Damir Franusic <damir.franusic@gmail.com>
Date: Mon, 10 Jan 2022 11:22:29 +0100
Subject: [PATCH] build: add range check for GDT CSIZE

---
 configure.ac      | 3 +++
 src/include/gdt.h | 2 +-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index 9fcd319..9bfcc73 100644
--- a/configure.ac
+++ b/configure.ac
@@ -233,6 +233,9 @@ AC_ARG_WITH(gdt-csize,
             [AS_HELP_STRING([--with-gdt-csize], [GDT packet buffer size [default = 1024]])],
             [gdt_csize=$withval],
             [gdt_csize=1024])
+if (($gdt_csize < 1024 || $gdt_csize > 32768)); then
+    AC_MSG_ERROR([Invalid GDT packet buffer value (1024 - 32768)])
+fi
 AC_SUBST(GDT_CSIZE, "$gdt_csize")
 AC_DEFINE_UNQUOTED([GDT_CSIZE], [$gdt_csize], [GDT packet buffer size])
 
diff --git a/src/include/gdt.h b/src/include/gdt.h
index 119ca5b..54ea344 100644
--- a/src/include/gdt.h
+++ b/src/include/gdt.h
@@ -704,7 +704,7 @@ namespace gdt {
         int sctp_len;
         pollfd fds_lst[1];
         int poll_timeout;
-        unsigned char tmp_buff[8192];
+        unsigned char tmp_buff[65536];
         sctp_sndrcvinfo rcvinfo;
         sctp_notification *sctp_ntf;
         sctp_assoc_change *sctp_assoc;