net.h

   1 #ifndef QEMU_NET_H
   2 #define QEMU_NET_H
   3
   4 #include "qemu-common.h"
   5
   6 /* VLANs support */
   7
   8 typedef struct VLANClientState VLANClientState;
   9
  10 typedef int (NetCanReceive)(VLANClientState *);
  11 typedef void (NetReceive)(VLANClientState *, const uint8_t *, size_t);
  12 typedef ssize_t (NetReceiveIOV)(VLANClientState *, const struct iovec *, int);
  13 typedef void (NetCleanup) (VLANClientState *);
  14 typedef void (LinkStatusChanged)(VLANClientState *);
  15
  16 struct VLANClientState {
  17     NetReceive *receive;
  18     NetReceiveIOV *receive_iov;
  19     /* Packets may still be sent if this returns zero.  It's used to
  20        rate-limit the slirp code.  */
  21     NetCanReceive *can_receive;
  22     NetCleanup *cleanup;
  23     LinkStatusChanged *link_status_changed;
  24     int link_down;
  25     void *opaque;
  26     struct VLANClientState *next;
  27     struct VLANState *vlan;
  28     char *model;
  29     char *name;
  30     char info_str[256];
  31 };
  32
  33 typedef struct VLANPacket VLANPacket;
  34
  35 struct VLANPacket {
  36     struct VLANPacket *next;
  37     VLANClientState *sender;
  38     int size;
  39     uint8_t data[0];
  40 };
  41
  42 struct VLANState {
  43     int id;
  44     VLANClientState *first_client;
  45     struct VLANState *next;
  46     unsigned int nb_guest_devs, nb_host_devs;
  47     VLANPacket *send_queue;
  48     int delivering;
  49 };
  50
  51 VLANState *qemu_find_vlan(int id);
  52 VLANClientState *qemu_new_vlan_client(VLANState *vlan,
  53                                       const char *model,
  54                                       const char *name,
  55                                       NetCanReceive *can_receive,
  56                                       NetReceive *receive,
  57                                       NetReceiveIOV *receive_iov,
  58                                       NetCleanup *cleanup,
  59                                       void *opaque);
  60 void qemu_del_vlan_client(VLANClientState *vc);
  61 VLANClientState *qemu_find_vlan_client(VLANState *vlan, void *opaque);
  62 int qemu_can_send_packet(VLANClientState *vc);
  63 ssize_t qemu_sendv_packet(VLANClientState *vc, const struct iovec *iov,
  64                           int iovcnt);
  65 void qemu_send_packet(VLANClientState *vc, const uint8_t *buf, int size);
  66 void qemu_format_nic_info_str(VLANClientState *vc, uint8_t macaddr[6]);
  67 void qemu_check_nic_model(NICInfo *nd, const char *model);
  68 void qemu_check_nic_model_list(NICInfo *nd, const char * const *models,
  69                                const char *default_model);
  70 void qemu_handler_true(void *opaque);
  71
  72 void do_info_network(Monitor *mon);
  73 int do_set_link(Monitor *mon, const char *name, const char *up_or_down);
  74
  75 /* NIC info */
  76
  77 #define MAX_NICS 8
  78
  79 struct NICInfo {
  80     uint8_t macaddr[6];
  81     const char *model;
  82     const char *name;
  83     VLANState *vlan;
  84     void *private;
  85     int used;
  86 };
  87
  88 extern int nb_nics;
  89 extern NICInfo nd_table[MAX_NICS];
  90
  91 /* BT HCI info */
  92
  93 struct HCIInfo {
  94     int (*bdaddr_set)(struct HCIInfo *hci, const uint8_t *bd_addr);
  95     void (*cmd_send)(struct HCIInfo *hci, const uint8_t *data, int len);
  96     void (*sco_send)(struct HCIInfo *hci, const uint8_t *data, int len);
  97     void (*acl_send)(struct HCIInfo *hci, const uint8_t *data, int len);
  98     void *opaque;
  99     void (*evt_recv)(void *opaque, const uint8_t *data, int len);
 100     void (*acl_recv)(void *opaque, const uint8_t *data, int len);
 101 };
 102
 103 struct HCIInfo *qemu_next_hci(void);
 104
 105 /* checksumming functions (net-checksum.c) */
 106 uint32_t net_checksum_add(int len, uint8_t *buf);
 107 uint16_t net_checksum_finish(uint32_t sum);
 108 uint16_t net_checksum_tcpudp(uint16_t length, uint16_t proto,
 109                              uint8_t *addrs, uint8_t *buf);
 110 void net_checksum_calculate(uint8_t *data, int length);
 111
 112 /* from net.c */
 113 int net_client_init(Monitor *mon, const char *device, const char *p);
 114 void net_client_uninit(NICInfo *nd);
 115 int net_client_parse(const char *str);
 116 void net_slirp_smb(const char *exported_dir);
 117 void net_slirp_redir(Monitor *mon, const char *redir_str, const char *redir_opt2);
 118 void net_cleanup(void);
 119 int slirp_is_inited(void);
 120 void net_client_check(void);
 121 void net_host_device_add(Monitor *mon, const char *device, const char *opts);
 122 void net_host_device_remove(Monitor *mon, int vlan_id, const char *device);
 123
 124 #define DEFAULT_NETWORK_SCRIPT "/etc/qemu-ifup"
 125 #define DEFAULT_NETWORK_DOWN_SCRIPT "/etc/qemu-ifdown"
 126 #ifdef __sun__
 127 #define SMBD_COMMAND "/usr/sfw/sbin/smbd"
 128 #else
 129 #define SMBD_COMMAND "/usr/sbin/smbd"
 130 #endif
 131
 132 void qdev_get_macaddr(DeviceState *dev, uint8_t *macaddr);
 133 VLANClientState *qdev_get_vlan_client(DeviceState *dev,
 134                                       NetCanReceive *can_receive,
 135                                       NetReceive *receive,
 136                                       NetReceiveIOV *receive_iov,
 137                                       NetCleanup *cleanup,
 138                                       void *opaque);
 139
 140 #endif