net.h

   1 #ifndef QEMU_NET_H
   2 #define QEMU_NET_H
   3
   4 #include "sys-queue.h"
   5 #include "qemu-common.h"
   6
   7 /* VLANs support */
   8
   9 typedef struct VLANClientState VLANClientState;
  10
  11 typedef int (NetCanReceive)(VLANClientState *);
  12 typedef ssize_t (NetReceive)(VLANClientState *, const uint8_t *, size_t);
  13 typedef ssize_t (NetReceiveIOV)(VLANClientState *, const struct iovec *, int);
  14 typedef void (NetCleanup) (VLANClientState *);
  15 typedef void (LinkStatusChanged)(VLANClientState *);
  16
  17 struct VLANClientState {
  18     NetReceive *receive;
  19     NetReceiveIOV *receive_iov;
  20     /* Packets may still be sent if this returns zero.  It's used to
  21        rate-limit the slirp code.  */
  22     NetCanReceive *can_receive;
  23     NetCleanup *cleanup;
  24     LinkStatusChanged *link_status_changed;
  25     int link_down;
  26     void *opaque;
  27     struct VLANClientState *next;
  28     struct VLANState *vlan;
  29     char *model;
  30     char *name;
  31     char info_str[256];
  32 };
  33
  34 typedef struct VLANPacket VLANPacket;
  35
  36 typedef void (NetPacketSent) (VLANClientState *, ssize_t);
  37
  38 struct VLANPacket {
  39     TAILQ_ENTRY(VLANPacket) entry;
  40     VLANClientState *sender;
  41     int size;
  42     NetPacketSent *sent_cb;
  43     uint8_t data[0];
  44 };
  45
  46 struct VLANState {
  47     int id;
  48     VLANClientState *first_client;
  49     struct VLANState *next;
  50     unsigned int nb_guest_devs, nb_host_devs;
  51     TAILQ_HEAD(send_queue, VLANPacket) send_queue;
  52     int delivering;
  53 };
  54
  55 VLANState *qemu_find_vlan(int id, int allocate);
  56 VLANClientState *qemu_new_vlan_client(VLANState *vlan,
  57                                       const char *model,
  58                                       const char *name,
  59                                       NetCanReceive *can_receive,
  60                                       NetReceive *receive,
  61                                       NetReceiveIOV *receive_iov,
  62                                       NetCleanup *cleanup,
  63                                       void *opaque);
  64 void qemu_del_vlan_client(VLANClientState *vc);
  65 VLANClientState *qemu_find_vlan_client(VLANState *vlan, void *opaque);
  66 int qemu_can_send_packet(VLANClientState *vc);
  67 ssize_t qemu_sendv_packet(VLANClientState *vc, const struct iovec *iov,
  68                           int iovcnt);
  69 ssize_t qemu_sendv_packet_async(VLANClientState *vc, const struct iovec *iov,
  70                                 int iovcnt, NetPacketSent *sent_cb);
  71 void qemu_send_packet(VLANClientState *vc, const uint8_t *buf, int size);
  72 ssize_t qemu_send_packet_async(VLANClientState *vc, const uint8_t *buf,
  73                                int size, NetPacketSent *sent_cb);
  74 void qemu_purge_queued_packets(VLANClientState *vc);
  75 void qemu_flush_queued_packets(VLANClientState *vc);
  76 void qemu_format_nic_info_str(VLANClientState *vc, uint8_t macaddr[6]);
  77 void qemu_check_nic_model(NICInfo *nd, const char *model);
  78 void qemu_check_nic_model_list(NICInfo *nd, const char * const *models,
  79                                const char *default_model);
  80 void qemu_handler_true(void *opaque);
  81
  82 void do_info_network(Monitor *mon);
  83 void do_set_link(Monitor *mon, const char *name, const char *up_or_down);
  84
  85 void do_info_usernet(Monitor *mon);
  86
  87 /* NIC info */
  88
  89 #define MAX_NICS 8
  90 enum {
  91         NIC_NVECTORS_UNSPECIFIED = -1
  92 };
  93
  94 struct NICInfo {
  95     uint8_t macaddr[6];
  96     const char *model;
  97     const char *name;
  98     const char *devaddr;
  99     const char *id;
 100     VLANState *vlan;
 101     VLANClientState *vc;
 102     void *private;
 103     int used;
 104     int bootable;
 105     int nvectors;
 106 };
 107
 108 extern int nb_nics;
 109 extern NICInfo nd_table[MAX_NICS];
 110
 111 /* BT HCI info */
 112
 113 struct HCIInfo {
 114     int (*bdaddr_set)(struct HCIInfo *hci, const uint8_t *bd_addr);
 115     void (*cmd_send)(struct HCIInfo *hci, const uint8_t *data, int len);
 116     void (*sco_send)(struct HCIInfo *hci, const uint8_t *data, int len);
 117     void (*acl_send)(struct HCIInfo *hci, const uint8_t *data, int len);
 118     void *opaque;
 119     void (*evt_recv)(void *opaque, const uint8_t *data, int len);
 120     void (*acl_recv)(void *opaque, const uint8_t *data, int len);
 121 };
 122
 123 struct HCIInfo *qemu_next_hci(void);
 124
 125 /* checksumming functions (net-checksum.c) */
 126 uint32_t net_checksum_add(int len, uint8_t *buf);
 127 uint16_t net_checksum_finish(uint32_t sum);
 128 uint16_t net_checksum_tcpudp(uint16_t length, uint16_t proto,
 129                              uint8_t *addrs, uint8_t *buf);
 130 void net_checksum_calculate(uint8_t *data, int length);
 131
 132 /* from net.c */
 133 extern const char *legacy_tftp_prefix;
 134 extern const char *legacy_bootp_filename;
 135
 136 int net_client_init(Monitor *mon, const char *device, const char *p);
 137 void net_client_uninit(NICInfo *nd);
 138 int net_client_parse(const char *str);
 139 void net_slirp_smb(const char *exported_dir);
 140 void net_slirp_hostfwd_add(Monitor *mon, const char *arg1,
 141                            const char *arg2, const char *arg3);
 142 void net_slirp_hostfwd_remove(Monitor *mon, const char *arg1,
 143                               const char *arg2, const char *arg3);
 144 void net_slirp_redir(const char *redir_str);
 145 void net_cleanup(void);
 146 void net_client_check(void);
 147 void net_set_boot_mask(int boot_mask);
 148 void net_host_device_add(Monitor *mon, const char *device, const char *opts);
 149 void net_host_device_remove(Monitor *mon, int vlan_id, const char *device);
 150
 151 #define DEFAULT_NETWORK_SCRIPT "/etc/qemu-ifup"
 152 #define DEFAULT_NETWORK_DOWN_SCRIPT "/etc/qemu-ifdown"
 153 #ifdef __sun__
 154 #define SMBD_COMMAND "/usr/sfw/sbin/smbd"
 155 #else
 156 #define SMBD_COMMAND "/usr/sbin/smbd"
 157 #endif
 158
 159 void qdev_get_macaddr(DeviceState *dev, uint8_t *macaddr);
 160 VLANClientState *qdev_get_vlan_client(DeviceState *dev,
 161                                       NetCanReceive *can_receive,
 162                                       NetReceive *receive,
 163                                       NetReceiveIOV *receive_iov,
 164                                       NetCleanup *cleanup,
 165                                       void *opaque);
 166
 167 #endif