From 258534718910c903451f1fe2e8fe1197c224c8e7 Mon Sep 17 00:00:00 2001
From: Stavros Passas <stavros.passas@movidius.com>
Date: Fri, 20 Jan 2017 09:22:46 +0000
Subject: network: Fix DHCP client protocol

Close #2877.
---
 cpukit/libnetworking/nfs/bootp_subr.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

(limited to 'cpukit/libnetworking/nfs/bootp_subr.c')

diff --git a/cpukit/libnetworking/nfs/bootp_subr.c b/cpukit/libnetworking/nfs/bootp_subr.c
index 3e71e95e08..b24ba945e7 100644
--- a/cpukit/libnetworking/nfs/bootp_subr.c
+++ b/cpukit/libnetworking/nfs/bootp_subr.c
@@ -284,7 +284,9 @@ int
 bootpc_call(
      struct bootp_packet *call,
      struct bootp_packet *reply,	/* output */
-     struct proc *procp)
+     struct proc *procp,
+     const void *exp_vend,
+     size_t exp_vend_len)
 {
 	struct socket *so;
 	struct sockaddr_in *sin;
@@ -450,6 +452,9 @@ bootpc_call(
 			if (bcmp(reply->chaddr,call->chaddr,call->hlen))
 			  continue;
 
+			if (exp_vend_len > 0 && bcmp(exp_vend, reply->vend, exp_vend_len))
+			  continue;
+
 			goto gotreply;	/* break two levels */
 
 		} /* while secs */
@@ -1051,7 +1056,7 @@ bootpc_init(bool update_files, bool forever)
     call.secs = 0;
     call.flags = htons(0x8000); /* We need an broadcast answer */
   
-    error = bootpc_call(&call,&reply,procp);
+    error = bootpc_call(&call,&reply,procp, NULL, 0);
   
     if (!error)
       break;
-- 
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