From: Steve Cai <steve.cai@hulu.com>
Date: Tue, 26 Feb 2013 00:40:29 +0000 (-0800)
Subject: randomize the initial rpc xid to avoid reply cache collision
X-Git-Tag: upstream/1.9.6^2~233^2
X-Git-Url: https://git.piment-noir.org/?a=commitdiff_plain;h=a27561934c35e2ced470a4832e5f9cca5dee4585;p=deb_libnfs.git

randomize the initial rpc xid to avoid reply cache collision
---

diff --git a/lib/init.c b/lib/init.c
index bbcfb86..06f6e4b 100644
--- a/lib/init.c
+++ b/lib/init.c
@@ -25,6 +25,7 @@
 #include <string.h>
 #include <stdlib.h>
 #include <assert.h>
+#include <time.h>
 #include "slist.h"
 #include "libnfs-zdr.h"
 #include "libnfs.h"
@@ -34,6 +35,7 @@
 struct rpc_context *rpc_init_context(void)
 {
 	struct rpc_context *rpc;
+	static uint32_t salt = 0;
 
 	rpc = malloc(sizeof(struct rpc_context));
 	if (rpc == NULL) {
@@ -59,7 +61,8 @@ struct rpc_context *rpc_init_context(void)
 		free(rpc);
 		return NULL;
 	}
-	rpc->xid = 1;
+	rpc->xid = salt + time(NULL);
+	salt += 0x01000000;
 	rpc->fd = -1;
 
 	return rpc;