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     char *model;
  32     char *name;
  33     char info_str[256];
  34 };
  35
  36 struct VLANState {
  37     int id;
  38     QTAILQ_HEAD(, VLANClientState) clients;
  39     QTAILQ_ENTRY(VLANState) next;
  40     unsigned int nb_guest_devs, nb_host_devs;
  41     NetQueue *send_queue;
  42 };
  43
  44 VLANState *qemu_find_vlan(int id, int allocate);
  45 VLANClientState *qemu_new_vlan_client(VLANState *vlan,
  46                                       VLANClientState *peer,
  47                                       const char *model,
  48                                       const char *name,
  49                                       NetCanReceive *can_receive,
  50                                       NetReceive *receive,
  51                                       NetReceiveIOV *receive_iov,
  52                                       NetCleanup *cleanup,
  53                                       void *opaque);
  54 void qemu_del_vlan_client(VLANClientState *vc);
  55 VLANClientState *qemu_find_vlan_client(VLANState *vlan, void *opaque);
  56 int qemu_can_send_packet(VLANClientState *vc);
  57 ssize_t qemu_sendv_packet(VLANClientState *vc, const struct iovec *iov,
  58                           int iovcnt);
  59 ssize_t qemu_sendv_packet_async(VLANClientState *vc, const struct iovec *iov,
  60                                 int iovcnt, NetPacketSent *sent_cb);
  61 void qemu_send_packet(VLANClientState *vc, const uint8_t *buf, int size);
  62 ssize_t qemu_send_packet_async(VLANClientState *vc, const uint8_t *buf,
  63                                int size, NetPacketSent *sent_cb);
  64 void qemu_purge_queued_packets(VLANClientState *vc);
  65 void qemu_flush_queued_packets(VLANClientState *vc);
  66 void qemu_format_nic_info_str(VLANClientState *vc, uint8_t macaddr[6]);
  67 int qemu_show_nic_models(const char *arg, const char *const *models);
  68 void qemu_check_nic_model(NICInfo *nd, const char *model);
  69 int qemu_find_nic_model(NICInfo *nd, const char * const *models,
  70                         const char *default_model);
  71
  72 void do_info_network(Monitor *mon);
  73 void do_set_link(Monitor *mon, const QDict *qdict);
  74
  75 void do_info_usernet(Monitor *mon);
  76
  77 /* NIC info */
  78
  79 #define MAX_NICS 8
  80 enum {
  81         NIC_NVECTORS_UNSPECIFIED = -1
  82 };
  83
  84 struct NICInfo {
  85     uint8_t macaddr[6];
  86     char *model;
  87     char *name;
  88     char *devaddr;
  89     VLANState *vlan;
  90     VLANClientState *netdev;
  91     VLANClientState *vc;
  92     void *private;
  93     int used;
  94     int bootable;
  95     int nvectors;
  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 extern const char *legacy_tftp_prefix;
 124 extern const char *legacy_bootp_filename;
 125
 126 int net_client_init(Monitor *mon, QemuOpts *opts, int is_netdev);
 127 void net_client_uninit(NICInfo *nd);
 128 int net_client_parse(QemuOptsList *opts_list, const char *str);
 129 int net_init_clients(void);
 130 int net_slirp_smb(const char *exported_dir);
 131 void net_slirp_hostfwd_add(Monitor *mon, const QDict *qdict);
 132 void net_slirp_hostfwd_remove(Monitor *mon, const QDict *qdict);
 133 int net_slirp_redir(const char *redir_str);
 134 void net_cleanup(void);
 135 void net_set_boot_mask(int boot_mask);
 136 void net_host_device_add(Monitor *mon, const QDict *qdict);
 137 void net_host_device_remove(Monitor *mon, const QDict *qdict);
 138
 139 #define DEFAULT_NETWORK_SCRIPT "/etc/qemu-ifup"
 140 #define DEFAULT_NETWORK_DOWN_SCRIPT "/etc/qemu-ifdown"
 141 #ifdef __sun__
 142 #define SMBD_COMMAND "/usr/sfw/sbin/smbd"
 143 #else
 144 #define SMBD_COMMAND "/usr/sbin/smbd"
 145 #endif
 146
 147 void qdev_get_macaddr(DeviceState *dev, uint8_t *macaddr);
 148 VLANClientState *qdev_get_vlan_client(DeviceState *dev,
 149                                       NetCanReceive *can_receive,
 150                                       NetReceive *receive,
 151                                       NetReceiveIOV *receive_iov,
 152                                       NetCleanup *cleanup,
 153                                       void *opaque);
 154
 155 #endif