From: Daniel Salzman <daniel.salzman@nic.cz>
Date: Tue, 18 Aug 2020 18:11:26 +0000 (+0200)
Subject: kxdpgun: make TRANSACTION_ID random but constant per program execution
X-Git-Tag: v3.0.0~34
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=997f0c79fdba0eb3d74e684746e189f02bc690ee;p=thirdparty%2Fknot-dns.git

kxdpgun: make TRANSACTION_ID random but constant per program execution
---

diff --git a/src/utils/kxdpgun/main.c b/src/utils/kxdpgun/main.c
index 52818eac11..c77a0aa4af 100644
--- a/src/utils/kxdpgun/main.c
+++ b/src/utils/kxdpgun/main.c
@@ -43,7 +43,7 @@
 
 #define PROGRAM_NAME "kxdpgun"
 
-#define TRANSACTION_ID htobe16(0xbaf8) // entirely arbitrary magic constant to distinguish from other traffic
+uint16_t TRANSACTION_ID; // random constant to distinguish foreign replies
 
 volatile bool xdp_trigger = false;
 
@@ -625,6 +625,8 @@ int main(int argc, char *argv[])
 		return EXIT_FAILURE;
 	}
 
+	TRANSACTION_ID = time(NULL) % UINT16_MAX;
+
 	thread_ctxs = calloc(ctx.n_threads, sizeof(*thread_ctxs));
 	threads = calloc(ctx.n_threads, sizeof(*threads));
 	if (thread_ctxs == NULL || threads == NULL) {