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