net.h

   1 #ifndef QEMU_NET_H
   2 #define QEMU_NET_H
   3
   4 /* VLANs support */
   5
   6 typedef struct VLANClientState VLANClientState;
   7
   8 struct VLANClientState {
   9     IOReadHandler *fd_read;
  10     /* Packets may still be sent if this returns zero.  It's used to
  11        rate-limit the slirp code.  */
  12     IOCanRWHandler *fd_can_read;
  13     void *opaque;
  14     struct VLANClientState *next;
  15     struct VLANState *vlan;
  16     char info_str[256];
  17 };
  18
  19 struct VLANState {
  20     int id;
  21     VLANClientState *first_client;
  22     struct VLANState *next;
  23     unsigned int nb_guest_devs, nb_host_devs;
  24 };
  25
  26 VLANState *qemu_find_vlan(int id);
  27 VLANClientState *qemu_new_vlan_client(VLANState *vlan,
  28                                       IOReadHandler *fd_read,
  29                                       IOCanRWHandler *fd_can_read,
  30                                       void *opaque);
  31 void qemu_del_vlan_client(VLANClientState *vc);
  32 int qemu_can_send_packet(VLANClientState *vc);
  33 void qemu_send_packet(VLANClientState *vc, const uint8_t *buf, int size);
  34 void qemu_handler_true(void *opaque);
  35
  36 void do_info_network(void);
  37
  38 /* NIC info */
  39
  40 #define MAX_NICS 8
  41
  42 struct NICInfo {
  43     uint8_t macaddr[6];
  44     const char *model;
  45     VLANState *vlan;
  46 };
  47
  48 extern int nb_nics;
  49 extern NICInfo nd_table[MAX_NICS];
  50
  51 /* checksumming functions (net-checksum.c) */
  52 uint32_t net_checksum_add(int len, uint8_t *buf);
  53 uint16_t net_checksum_finish(uint32_t sum);
  54 uint16_t net_checksum_tcpudp(uint16_t length, uint16_t proto,
  55                              uint8_t *addrs, uint8_t *buf);
  56 void net_checksum_calculate(uint8_t *data, int length);
  57
  58 #endif