*
* Author: Lei Xia <lxia@northwestern.edu>
* Yuan Tang <ytang@northwestern.edu>
- * Jack Lange <jarusl@cs.northwestern.edu>
- * Peter Dinda <pdinda@northwestern.edu
*
* This is free software. You are permitted to use,
* redistribute, and modify it as specified in the file "V3VEE_LICENSE".
#include <palacios/vmm_string.h>
#include <palacios/vmm_types.h>
#include <palacios/vmm_queue.h>
-#include <palacios/vmm_socket.h>
#include <palacios/vmm_hashtable.h>
#include <palacios/vmm_sprintf.h>
-
#define ETHERNET_HEADER_LEN 14
#define ETHERNET_DATA_MIN 46
#define ETHERNET_DATA_MAX 1500
#define ETHERNET_PACKET_LEN (ETHERNET_HEADER_LEN + ETHERNET_DATA_MAX)
-#define SOCK int
+typedef enum {MAC_ANY, MAC_NOT, MAC_NONE, MAC_EMPTY} 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;
-//the routing entry
-struct routing{
+//routing table entry
+struct routing_entry{
char src_mac[6];
char dest_mac[6];
int src_mac_qual;
int dest_mac_qual;
- int dest; //link[dest] is the link to be used to send pkt
- int type; //EDGE|INTERFACE|ANY
+ int link_idx; //link[dest] is the link to be used to send pkt
+ link_type_t link_type; //EDGE|INTERFACE|ANY
- int src;
- int src_type; //EDGE|INTERFACE|ANY
-
- int use;
-
- int next;
- int prev;
- // struct list_head entry_list;
-};
-
-//struct gen_route {
- // uint_t num_entries;
- // struct list_head entries;
-//}
-
- //This is the structure that stores the topology
-struct topology {
- SOCK link_sock;
-
- unsigned long dest;
-
- // Port for UDP
- unsigned short remote_port;
-
- int use;
- int type; //TCP=0, UDP=1,VTP=2, can be extended so on
-
- int next;
- int prev;
-};
-
-struct sock_list {
- SOCK sock;
-
- int next;
- int prev;
-};
-
-
-#define GENERAL_NIC 0
-
-struct ethAddr{
- char addr[6];
-};
-
+ int src_link_idx;
+ link_type_t src_type; //EDGE|INTERFACE|ANY
+}__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];
- struct ethAddr device_addr;
+ char name[DEVICE_NAME_LEN];
+ uchar_t mac_addr[6];
+ struct vm_device *dev;
- int (*input)(uchar_t * pkt, uint_t size);
+ int (*input)(uchar_t *data, uint32_t len, void *private_data);
- void * data;
-};
-
+ void *private_data;
+}__attribute__((packed));
-struct device_list {
- struct vnet_if_device *device;
- int use;
- int type;
+struct vnet_if_link {
+ prot_type_t pro_type; //protocal type of this link
+ unsigned long dest_ip;
+ uint16_t dest_port;
- int next;
- int prev;
-};
+ struct udp_link_header vnet_header; //header applied to the packet in/out from this link
-// 14 (ethernet frame) + 20 bytes
-struct HEADERS {
- char ethernetdest[6];
- char ethernetsrc[6];
- unsigned char ethernettype[2]; // indicates layer 3 protocol type
- char ip[20];
-};
+ int (*input)(uchar_t *data, uint32_t len, void *private_data);
+
+ void *private_data;
+}__attribute__((packed));
-#define FOREACH(iter, list, start) for (iter = start; iter != -1; iter = list[iter].next)
-#define FOREACH_SOCK(iter, socks, start) FOREACH(iter, socks, start)
-#define FOREACH_LINK(iter, links, start) FOREACH(iter, links, start)
-#define FOREACH_ROUTE(iter, routes, start) FOREACH(iter, routes, start)
-#define FOREACH_DEVICE(iter, devices, start) FOREACH(iter, devices, start)
+//link table entry
+struct link_entry {
+ link_type_t type;
+
+ union {
+ struct vnet_if_device *dst_dev;
+ struct vnet_if_link *dst_link;
+ } __attribute__((packed));
-int v3_Send_pkt(uchar_t *buf, int length);
-int v3_Register_pkt_event(int (*netif_input)(uchar_t * pkt, uint_t size));
+ int use;
+}__attribute__((packed));
-int vnet_send_pkt(char *buf, int length);
-int vnet_register_pkt_event(char *dev_name, int (*netif_input)(uchar_t * pkt, uint_t size), void *data);
+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_unregister_device(char *dev_name);
-int v3_vnet_pkt_process();
+int v3_vnet_pkt_process();
-void v3_vnet_init();
+void v3_vnet_init(struct guest_info *vm);
#endif
