kvm tools: Introduce struct uip_dhcp

struct uip_dhcp is used to present DHCP package

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

diff --git a/tools/kvm/include/kvm/uip.h b/tools/kvm/include/kvm/uip.h
index 83330044cb00a2589ed854f8f116d1149b2ae081..c414267bbab7195ea4c0e07e4625ff362e8f6ff1 100644 (file)
--- a/tools/kvm/include/kvm/uip.h
+++ b/tools/kvm/include/kvm/uip.h
@@ -29,6 +29,12 @@
 #define UIP_TCP_FLAG_ACK       16
 #define UIP_TCP_FLAG_URG       32
 
+#define UIP_DHCP_VENDOR_SPECIFIC_LEN   312
+#define UIP_DHCP_MACPAD_LEN            10
+#define UIP_DHCP_HOSTNAME_LEN          64
+#define UIP_DHCP_FILENAME_LEN          128
+#define UIP_DHCP_MAGIC_COOKIE_LEN      4
+#define UIP_DHCP_OPTION_LEN            (UIP_DHCP_VENDOR_SPECIFIC_LEN - UIP_DHCP_MAGIC_COOKIE_LEN)
 /*
  * IP package maxium len == 64 KBytes
  * IP header == 20 Bytes
@@ -126,6 +132,27 @@ struct uip_pseudo_hdr {
        u16 len;
 } __attribute__((packed));
 
+struct uip_dhcp {
+       struct uip_udp udp;
+       u8 msg_type;
+       u8 hardware_type;
+       u8 hardware_len;
+       u8 hops;
+       u32 id;
+       u16 time;
+       u16 flg;
+       u32 client_ip;
+       u32 your_ip;
+       u32 server_ip;
+       u32 agent_ip;
+       struct uip_eth_addr client_mac;
+       u8 pad[UIP_DHCP_MACPAD_LEN];
+       u8 server_hostname[UIP_DHCP_HOSTNAME_LEN];
+       u8 boot_filename[UIP_DHCP_FILENAME_LEN];
+       u32 magic_cookie;
+       u8 option[UIP_DHCP_OPTION_LEN];
+} __attribute__((packed));
+
 struct uip_info {
        struct list_head udp_socket_head;
        struct list_head tcp_socket_head;