net.h

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