Update on Vnet and Virtio Nic

[palacios.git] / palacios / include / palacios / vmm_vnet.h

diff --git a/palacios/include/palacios/vmm_vnet.h b/palacios/include/palacios/vmm_vnet.h
index 51d99c4..90e3ca1 100644 (file)
--- a/palacios/include/palacios/vmm_vnet.h
+++ b/palacios/include/palacios/vmm_vnet.h
@@ -36,7 +36,7 @@
 #define ETHERNET_DATA_MAX   1500
 #define ETHERNET_PACKET_LEN (ETHERNET_HEADER_LEN + ETHERNET_DATA_MAX)
 
-typedef enum {MAC_ANY, MAC_NOT, MAC_NONE, MAC_EMPTY} mac_type_t; //for 'src_mac_qual' and 'dst_mac_qual'
+typedef enum {MAC_ANY, MAC_NOT, MAC_NONE} mac_type_t; //for 'src_mac_qual' and 'dst_mac_qual'
 typedef enum {LINK_INTERFACE, LINK_EDGE, LINK_ANY} link_type_t; //for 'type' and 'src_type' in struct routing
 typedef enum {TCP_TYPE, UDP_TYPE, NONE_TYPE} prot_type_t;
 
@@ -56,8 +56,43 @@ struct routing_entry{
 }__attribute__((packed));
 
 
+struct eth_header {
+    uchar_t dest[6];
+    uchar_t src[6];
+    uint16_t type; // indicates layer 3 protocol type
+}__attribute__((packed));
+
+struct ip_header {
+    uint8_t version: 4;
+    uint8_t hdr_len: 4;
+    uchar_t tos;
+    uint16_t total_len;
+    uint16_t id;
+    uint8_t flags:     3;
+    uint16_t offset: 13;
+    uchar_t ttl;
+    uchar_t proto;
+    uint16_t cksum;
+    uint32_t src_addr;
+    uint32_t dst_addr;
+}__attribute__((packed));
+
+struct udp_header {
+    uint16_t src_port;
+    uint16_t dst_port;
+    uint16_t len;
+    uint16_t csum;//set to zero, disable the xsum
+}__attribute__((packed));
+
+struct udp_link_header {
+    struct eth_header eth_hdr;
+    struct ip_header ip_hdr;
+    struct udp_header udp_hdr;
+}__attribute__((packed));
+
+#define DEVICE_NAME_LEN 20
 struct vnet_if_device {
-    char name[50];
+    char name[DEVICE_NAME_LEN];
     uchar_t mac_addr[6];
     struct vm_device *dev;
     
@@ -67,14 +102,12 @@ struct vnet_if_device {
 }__attribute__((packed));
 
 
-#define VNET_HEADER_LEN  64
 struct vnet_if_link {
-    prot_type_t pro_type; //protocal type of this link
+    prot_type_t pro_type; //transport layer protocal type of this link
     unsigned long dest_ip;
     uint16_t dest_port;
 
-    uchar_t vnet_header[VNET_HEADER_LEN]; //header applied to the packet in/out from this link
-    uint16_t hdr_len; 
+    struct udp_link_header vnet_header; //header applied to the packet in/out from this link
 
     int (*input)(uchar_t *data, uint32_t len, void *private_data);
     
@@ -95,13 +128,22 @@ struct link_entry {
 }__attribute__((packed));
 
 
-int v3_vnet_send_pkt(uchar_t *buf, int length);
-//int vnet_register_device(struct vm_device *vdev, 
-//                      char *dev_name, 
-//                      uchar_t mac[6], 
-//                      int (*netif_input)(uchar_t * pkt, uint_t size, void *private_data), 
-//                      void *data);
-//int vnet_unregister_device(char *dev_name);
+int v3_vnet_send_rawpkt(uchar_t *buf, int len, void *private_data);
+int v3_vnet_send_udppkt(uchar_t *buf, int len, void *private_data);
+int vnet_register_device(struct vm_device *vdev, 
+                        char *dev_name, 
+                        uchar_t mac[6], 
+                        int (*netif_input)(uchar_t * pkt, uint_t size, void *private_data), 
+                        void *data);
+
+int vnet_add_route_entry(char src_mac[6],
+                               char dest_mac[6],
+                               int src_mac_qual,
+                               int dest_mac_qual,
+                               int link_idx,
+                               link_type_t link_type,
+                               int src_link_idx,
+                               link_type_t src_link_type);
 
 int v3_vnet_pkt_process();