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