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
   9 /* VLANs support */
  10
  11 typedef struct VLANClientState VLANClientState;
  12
  13 typedef int (NetCanReceive)(VLANClientState *);
  14 typedef ssize_t (NetReceive)(VLANClientState *, const uint8_t *, size_t);
  15 typedef ssize_t (NetReceiveIOV)(VLANClientState *, const struct iovec *, int);
  16 typedef void (NetCleanup) (VLANClientState *);
  17 typedef void (LinkStatusChanged)(VLANClientState *);
  18
  19 struct VLANClientState {
  20     NetReceive *receive;
  21     NetReceiveIOV *receive_iov;
  22     /* Packets may still be sent if this returns zero.  It's used to
  23        rate-limit the slirp code.  */
  24     NetCanReceive *can_receive;
  25     NetCleanup *cleanup;
  26     LinkStatusChanged *link_status_changed;
  27     int link_down;
  28     void *opaque;
  29     QTAILQ_ENTRY(VLANClientState) next;
  30     struct VLANState *vlan;
  31     VLANClientState *peer;
  32     char *model;
  33     char *name;
  34     char info_str[256];
  35 };
  36
  37 typedef struct VLANPacket VLANPacket;
  38
  39 typedef void (NetPacketSent) (VLANClientState *, ssize_t);
  40
  41 struct VLANPacket {
  42     QTAILQ_ENTRY(VLANPacket) entry;
  43     VLANClientState *sender;
  44     int size;
  45     NetPacketSent *sent_cb;
  46     uint8_t data[0];
  47 };
  48
  49 struct VLANState {
  50     int id;
  51     QTAILQ_HEAD(, VLANClientState) clients;
  52     QTAILQ_ENTRY(VLANState) next;
  53     unsigned int nb_guest_devs, nb_host_devs;
  54     QTAILQ_HEAD(send_queue, VLANPacket) send_queue;
  55     int delivering;
  56 };
  57
  58 VLANState *qemu_find_vlan(int id, int allocate);
  59 VLANClientState *qemu_new_vlan_client(VLANState *vlan,
  60                                       VLANClientState *peer,
  61                                       const char *model,
  62                                       const char *name,
  63                                       NetCanReceive *can_receive,
  64                                       NetReceive *receive,
  65                                       NetReceiveIOV *receive_iov,
  66                                       NetCleanup *cleanup,
  67                                       void *opaque);
  68 void qemu_del_vlan_client(VLANClientState *vc);
  69 VLANClientState *qemu_find_vlan_client(VLANState *vlan, void *opaque);
  70 int qemu_can_send_packet(VLANClientState *vc);
  71 ssize_t qemu_sendv_packet(VLANClientState *vc, const struct iovec *iov,
  72                           int iovcnt);
  73 ssize_t qemu_sendv_packet_async(VLANClientState *vc, const struct iovec *iov,
  74                                 int iovcnt, NetPacketSent *sent_cb);
  75 void qemu_send_packet(VLANClientState *vc, const uint8_t *buf, int size);
  76 ssize_t qemu_send_packet_async(VLANClientState *vc, const uint8_t *buf,
  77                                int size, NetPacketSent *sent_cb);
  78 void qemu_purge_queued_packets(VLANClientState *vc);
  79 void qemu_flush_queued_packets(VLANClientState *vc);
  80 void qemu_format_nic_info_str(VLANClientState *vc, uint8_t macaddr[6]);
  81 int qemu_show_nic_models(const char *arg, const char *const *models);
  82 void qemu_check_nic_model(NICInfo *nd, const char *model);
  83 int qemu_find_nic_model(NICInfo *nd, const char * const *models,
  84                         const char *default_model);
  85
  86 void do_info_network(Monitor *mon);
  87 void do_set_link(Monitor *mon, const QDict *qdict);
  88
  89 void do_info_usernet(Monitor *mon);
  90
  91 /* NIC info */
  92
  93 #define MAX_NICS 8
  94 enum {
  95         NIC_NVECTORS_UNSPECIFIED = -1
  96 };
  97
  98 struct NICInfo {
  99     uint8_t macaddr[6];
 100     char *model;
 101     char *name;
 102     char *devaddr;
 103     VLANState *vlan;
 104     VLANClientState *netdev;
 105     VLANClientState *vc;
 106     void *private;
 107     int used;
 108     int bootable;
 109     int nvectors;
 110 };
 111
 112 extern int nb_nics;
 113 extern NICInfo nd_table[MAX_NICS];
 114
 115 /* BT HCI info */
 116
 117 struct HCIInfo {
 118     int (*bdaddr_set)(struct HCIInfo *hci, const uint8_t *bd_addr);
 119     void (*cmd_send)(struct HCIInfo *hci, const uint8_t *data, int len);
 120     void (*sco_send)(struct HCIInfo *hci, const uint8_t *data, int len);
 121     void (*acl_send)(struct HCIInfo *hci, const uint8_t *data, int len);
 122     void *opaque;
 123     void (*evt_recv)(void *opaque, const uint8_t *data, int len);
 124     void (*acl_recv)(void *opaque, const uint8_t *data, int len);
 125 };
 126
 127 struct HCIInfo *qemu_next_hci(void);
 128
 129 /* checksumming functions (net-checksum.c) */
 130 uint32_t net_checksum_add(int len, uint8_t *buf);
 131 uint16_t net_checksum_finish(uint32_t sum);
 132 uint16_t net_checksum_tcpudp(uint16_t length, uint16_t proto,
 133                              uint8_t *addrs, uint8_t *buf);
 134 void net_checksum_calculate(uint8_t *data, int length);
 135
 136 /* from net.c */
 137 extern const char *legacy_tftp_prefix;
 138 extern const char *legacy_bootp_filename;
 139
 140 int net_client_init(Monitor *mon, QemuOpts *opts, int is_netdev);
 141 void net_client_uninit(NICInfo *nd);
 142 int net_client_parse(QemuOptsList *opts_list, const char *str);
 143 int net_init_clients(void);
 144 int net_slirp_smb(const char *exported_dir);
 145 void net_slirp_hostfwd_add(Monitor *mon, const QDict *qdict);
 146 void net_slirp_hostfwd_remove(Monitor *mon, const QDict *qdict);
 147 int net_slirp_redir(const char *redir_str);
 148 void net_cleanup(void);
 149 void net_set_boot_mask(int boot_mask);
 150 void net_host_device_add(Monitor *mon, const QDict *qdict);
 151 void net_host_device_remove(Monitor *mon, const QDict *qdict);
 152
 153 #define DEFAULT_NETWORK_SCRIPT "/etc/qemu-ifup"
 154 #define DEFAULT_NETWORK_DOWN_SCRIPT "/etc/qemu-ifdown"
 155 #ifdef __sun__
 156 #define SMBD_COMMAND "/usr/sfw/sbin/smbd"
 157 #else
 158 #define SMBD_COMMAND "/usr/sbin/smbd"
 159 #endif
 160
 161 void qdev_get_macaddr(DeviceState *dev, uint8_t *macaddr);
 162 VLANClientState *qdev_get_vlan_client(DeviceState *dev,
 163                                       NetCanReceive *can_receive,
 164                                       NetReceive *receive,
 165                                       NetReceiveIOV *receive_iov,
 166                                       NetCleanup *cleanup,
 167                                       void *opaque);
 168
 169 #endif