From: Asias He <asias.hejun@gmail.com>
Date: Sun, 17 Jul 2011 08:56:56 +0000 (+0800)
Subject: kvm tools: Introduce uip_dhcp_make_pkg()
X-Git-Tag: next-20110824~3^2~99
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=1cef252aeb2cdb5a3d3b6f6603e8831b938a1964;p=karo-tx-linux.git

kvm tools: Introduce uip_dhcp_make_pkg()

This patch cooks a DHCP package.

Signed-off-by: Asias He <asias.hejun@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
---

diff --git a/tools/kvm/net/uip/dhcp.c b/tools/kvm/net/uip/dhcp.c
index b4df37f39ceb..7ee55e58d269 100644
--- a/tools/kvm/net/uip/dhcp.c
+++ b/tools/kvm/net/uip/dhcp.c
@@ -133,3 +133,25 @@ static int uip_dhcp_fill_option(struct uip_info *info, struct uip_dhcp *dhcp, in
 
 	return 0;
 }
+
+static int uip_dhcp_make_pkg(struct uip_info *info, struct uip_udp_socket *sk, struct uip_buf *buf, u8 reply_msg_type)
+{
+	struct uip_dhcp *dhcp;
+
+	dhcp		= (struct uip_dhcp *)buf->eth;
+
+	dhcp->msg_type	= 2;
+	dhcp->client_ip	= 0;
+	dhcp->your_ip	= htonl(info->guest_ip);
+	dhcp->server_ip	= htonl(info->host_ip);
+	dhcp->agent_ip	= 0;
+
+	uip_dhcp_fill_option(info, dhcp, reply_msg_type);
+
+	sk->sip		= htonl(info->guest_ip);
+	sk->dip		= htonl(info->host_ip);
+	sk->sport	= htons(UIP_DHCP_PORT_CLIENT);
+	sk->dport	= htons(UIP_DHCP_PORT_SERVER);
+
+	return 0;
+}