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 ssize_t (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 typedef void (NetPacketSent) (VLANClientState *);
  36
  37 struct VLANPacket {
  38     struct VLANPacket *next;
  39     VLANClientState *sender;
  40     int size;
  41     NetPacketSent *sent_cb;
  42     uint8_t data[0];
  43 };
  44
  45 struct VLANState {
  46     int id;
  47     VLANClientState *first_client;
  48     struct VLANState *next;
  49     unsigned int nb_guest_devs, nb_host_devs;
  50     VLANPacket *send_queue;
  51     int delivering;
  52 };
  53
  54 VLANState *qemu_find_vlan(int id);
  55 VLANClientState *qemu_new_vlan_client(VLANState *vlan,
  56                                       const char *model,
  57                                       const char *name,
  58                                       NetCanReceive *can_receive,
  59                                       NetReceive *receive,
  60                                       NetReceiveIOV *receive_iov,
  61                                       NetCleanup *cleanup,
  62                                       void *opaque);
  63 void qemu_del_vlan_client(VLANClientState *vc);
  64 VLANClientState *qemu_find_vlan_client(VLANState *vlan, void *opaque);
  65 int qemu_can_send_packet(VLANClientState *vc);
  66 ssize_t qemu_sendv_packet(VLANClientState *vc, const struct iovec *iov,
  67                           int iovcnt);
  68 ssize_t qemu_sendv_packet_async(VLANClientState *vc, const struct iovec *iov,
  69                                 int iovcnt, NetPacketSent *sent_cb);
  70 void qemu_send_packet(VLANClientState *vc, const uint8_t *buf, int size);
  71 ssize_t qemu_send_packet_async(VLANClientState *vc, const uint8_t *buf,
  72                                int size, NetPacketSent *sent_cb);
  73 void qemu_flush_queued_packets(VLANClientState *vc);
  74 void qemu_format_nic_info_str(VLANClientState *vc, uint8_t macaddr[6]);
  75 void qemu_check_nic_model(NICInfo *nd, const char *model);
  76 void qemu_check_nic_model_list(NICInfo *nd, const char * const *models,
  77                                const char *default_model);
  78 void qemu_handler_true(void *opaque);
  79
  80 void do_info_network(Monitor *mon);
  81 int do_set_link(Monitor *mon, const char *name, const char *up_or_down);
  82
  83 /* NIC info */
  84
  85 #define MAX_NICS 8
  86
  87 struct NICInfo {
  88     uint8_t macaddr[6];
  89     const char *model;
  90     const char *name;
  91     const char *devaddr;
  92     VLANState *vlan;
  93     void *private;
  94     int used;
  95     int bootable;
  96 };
  97
  98 extern int nb_nics;
  99 extern NICInfo nd_table[MAX_NICS];
 100
 101 /* BT HCI info */
 102
 103 struct HCIInfo {
 104     int (*bdaddr_set)(struct HCIInfo *hci, const uint8_t *bd_addr);
 105     void (*cmd_send)(struct HCIInfo *hci, const uint8_t *data, int len);
 106     void (*sco_send)(struct HCIInfo *hci, const uint8_t *data, int len);
 107     void (*acl_send)(struct HCIInfo *hci, const uint8_t *data, int len);
 108     void *opaque;
 109     void (*evt_recv)(void *opaque, const uint8_t *data, int len);
 110     void (*acl_recv)(void *opaque, const uint8_t *data, int len);
 111 };
 112
 113 struct HCIInfo *qemu_next_hci(void);
 114
 115 /* checksumming functions (net-checksum.c) */
 116 uint32_t net_checksum_add(int len, uint8_t *buf);
 117 uint16_t net_checksum_finish(uint32_t sum);
 118 uint16_t net_checksum_tcpudp(uint16_t length, uint16_t proto,
 119                              uint8_t *addrs, uint8_t *buf);
 120 void net_checksum_calculate(uint8_t *data, int length);
 121
 122 /* from net.c */
 123 int net_client_init(Monitor *mon, const char *device, const char *p);
 124 void net_client_uninit(NICInfo *nd);
 125 int net_client_parse(const char *str);
 126 void net_slirp_smb(const char *exported_dir);
 127 void net_slirp_redir(Monitor *mon, const char *redir_str, const char *redir_opt2);
 128 void net_cleanup(void);
 129 int slirp_is_inited(void);
 130 void net_client_check(void);
 131 void net_set_boot_mask(int boot_mask);
 132 void net_host_device_add(Monitor *mon, const char *device, const char *opts);
 133 void net_host_device_remove(Monitor *mon, int vlan_id, const char *device);
 134
 135 #define DEFAULT_NETWORK_SCRIPT "/etc/qemu-ifup"
 136 #define DEFAULT_NETWORK_DOWN_SCRIPT "/etc/qemu-ifdown"
 137 #ifdef __sun__
 138 #define SMBD_COMMAND "/usr/sfw/sbin/smbd"
 139 #else
 140 #define SMBD_COMMAND "/usr/sbin/smbd"
 141 #endif
 142
 143 void qdev_get_macaddr(DeviceState *dev, uint8_t *macaddr);
 144 VLANClientState *qdev_get_vlan_client(DeviceState *dev,
 145                                       NetCanReceive *can_receive,
 146                                       NetReceive *receive,
 147                                       NetReceiveIOV *receive_iov,
 148                                       NetCleanup *cleanup,
 149                                       void *opaque);
 150
 151 #endif