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                                       IOCanRWHandler *fd_can_read,
  55                                       IOReadHandler *fd_read,
  56                                       IOReadvHandler *fd_readv,
  57                                       NetCleanup *cleanup,
  58                                       void *opaque);
  59 void qemu_del_vlan_client(VLANClientState *vc);
  60 VLANClientState *qemu_find_vlan_client(VLANState *vlan, void *opaque);
  61 int qemu_can_send_packet(VLANClientState *vc);
  62 ssize_t qemu_sendv_packet(VLANClientState *vc, const struct iovec *iov,
  63                           int iovcnt);
  64 void qemu_send_packet(VLANClientState *vc, const uint8_t *buf, int size);
  65 void qemu_format_nic_info_str(VLANClientState *vc, uint8_t macaddr[6]);
  66 void qemu_check_nic_model(NICInfo *nd, const char *model);
  67 void qemu_check_nic_model_list(NICInfo *nd, const char * const *models,
  68                                const char *default_model);
  69 void qemu_handler_true(void *opaque);
  70
  71 void do_info_network(Monitor *mon);
  72 int do_set_link(Monitor *mon, const char *name, const char *up_or_down);
  73
  74 /* NIC info */
  75
  76 #define MAX_NICS 8
  77
  78 struct NICInfo {
  79     uint8_t macaddr[6];
  80     const char *model;
  81     const char *name;
  82     VLANState *vlan;
  83     void *private;
  84     int used;
  85 };
  86
  87 extern int nb_nics;
  88 extern NICInfo nd_table[MAX_NICS];
  89
  90 /* BT HCI info */
  91
  92 struct HCIInfo {
  93     int (*bdaddr_set)(struct HCIInfo *hci, const uint8_t *bd_addr);
  94     void (*cmd_send)(struct HCIInfo *hci, const uint8_t *data, int len);
  95     void (*sco_send)(struct HCIInfo *hci, const uint8_t *data, int len);
  96     void (*acl_send)(struct HCIInfo *hci, const uint8_t *data, int len);
  97     void *opaque;
  98     void (*evt_recv)(void *opaque, const uint8_t *data, int len);
  99     void (*acl_recv)(void *opaque, const uint8_t *data, int len);
 100 };
 101
 102 struct HCIInfo *qemu_next_hci(void);
 103
 104 /* checksumming functions (net-checksum.c) */
 105 uint32_t net_checksum_add(int len, uint8_t *buf);
 106 uint16_t net_checksum_finish(uint32_t sum);
 107 uint16_t net_checksum_tcpudp(uint16_t length, uint16_t proto,
 108                              uint8_t *addrs, uint8_t *buf);
 109 void net_checksum_calculate(uint8_t *data, int length);
 110
 111 /* from net.c */
 112 int net_client_init(Monitor *mon, const char *device, const char *p);
 113 void net_client_uninit(NICInfo *nd);
 114 int net_client_parse(const char *str);
 115 void net_slirp_smb(const char *exported_dir);
 116 void net_slirp_redir(Monitor *mon, const char *redir_str, const char *redir_opt2);
 117 void net_cleanup(void);
 118 int slirp_is_inited(void);
 119 void net_client_check(void);
 120 void net_host_device_add(Monitor *mon, const char *device, const char *opts);
 121 void net_host_device_remove(Monitor *mon, int vlan_id, const char *device);
 122
 123 #define DEFAULT_NETWORK_SCRIPT "/etc/qemu-ifup"
 124 #define DEFAULT_NETWORK_DOWN_SCRIPT "/etc/qemu-ifdown"
 125 #ifdef __sun__
 126 #define SMBD_COMMAND "/usr/sfw/sbin/smbd"
 127 #else
 128 #define SMBD_COMMAND "/usr/sbin/smbd"
 129 #endif
 130
 131 void qdev_get_macaddr(DeviceState *dev, uint8_t *macaddr);
 132 VLANClientState *qdev_get_vlan_client(DeviceState *dev,
 133                                       IOCanRWHandler *fd_can_read,
 134                                       IOReadHandler *fd_read,
 135                                       IOReadvHandler *fd_readv,
 136                                       NetCleanup *cleanup,
 137                                       void *opaque);
 138
 139 #endif