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
   8 /* VLANs support */
   9
  10 typedef struct VLANClientState VLANClientState;
  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 typedef void (SetOffload)(VLANClientState *, int, int, int, int);
  18
  19 struct VLANClientState {
  20     NetReceive *receive;
  21     NetReceive *receive_raw;
  22     NetReceiveIOV *receive_iov;
  23     /* Packets may still be sent if this returns zero.  It's used to
  24        rate-limit the slirp code.  */
  25     NetCanReceive *can_receive;
  26     NetCleanup *cleanup;
  27     LinkStatusChanged *link_status_changed;
  28     int link_down;
  29     SetOffload *set_offload;
  30     void *opaque;
  31     struct VLANClientState *next;
  32     struct VLANState *vlan;
  33     char *model;
  34     char *name;
  35     char info_str[256];
  36 };
  37
  38 typedef struct VLANPacket VLANPacket;
  39
  40 typedef void (NetPacketSent) (VLANClientState *, ssize_t);
  41
  42 struct VLANPacket {
  43     QTAILQ_ENTRY(VLANPacket) entry;
  44     VLANClientState *sender;
  45     int size;
  46     int raw;
  47     NetPacketSent *sent_cb;
  48     uint8_t data[0];
  49 };
  50
  51 struct VLANState {
  52     int id;
  53     VLANClientState *first_client;
  54     struct VLANState *next;
  55     unsigned int nb_guest_devs, nb_host_devs;
  56     QTAILQ_HEAD(send_queue, VLANPacket) send_queue;
  57     int delivering;
  58 };
  59
  60 VLANState *qemu_find_vlan(int id, int allocate);
  61 VLANClientState *qemu_new_vlan_client(VLANState *vlan,
  62                                       const char *model,
  63                                       const char *name,
  64                                       NetCanReceive *can_receive,
  65                                       NetReceive *receive,
  66                                       NetReceiveIOV *receive_iov,
  67                                       NetCleanup *cleanup,
  68                                       void *opaque);
  69 void qemu_del_vlan_client(VLANClientState *vc);
  70 VLANClientState *qemu_find_vlan_client(VLANState *vlan, void *opaque);
  71 int qemu_can_send_packet(VLANClientState *vc);
  72 ssize_t qemu_sendv_packet(VLANClientState *vc, const struct iovec *iov,
  73                           int iovcnt);
  74 ssize_t qemu_sendv_packet_async(VLANClientState *vc, const struct iovec *iov,
  75                                 int iovcnt, NetPacketSent *sent_cb);
  76 ssize_t qemu_send_packet(VLANClientState *vc, const uint8_t *buf, int size);
  77 ssize_t qemu_send_packet_raw(VLANClientState *vc, const uint8_t *buf, int size);
  78 ssize_t qemu_send_packet_async(VLANClientState *vc, const uint8_t *buf,
  79                                int size, NetPacketSent *sent_cb);
  80 void qemu_purge_queued_packets(VLANClientState *vc);
  81 void qemu_flush_queued_packets(VLANClientState *vc);
  82 void qemu_format_nic_info_str(VLANClientState *vc, uint8_t macaddr[6]);
  83 int qemu_show_nic_models(const char *arg, const char *const *models);
  84 void qemu_check_nic_model(NICInfo *nd, const char *model);
  85 int qemu_find_nic_model(NICInfo *nd, const char * const *models,
  86                         const char *default_model);
  87 void qemu_handler_true(void *opaque);
  88
  89 void do_info_network(Monitor *mon);
  90 void do_set_link(Monitor *mon, const QDict *qdict);
  91
  92 void do_info_usernet(Monitor *mon);
  93
  94 int tap_has_vnet_hdr(void *opaque);
  95 void tap_using_vnet_hdr(void *opaque, int using_vnet_hdr);
  96
  97 /* NIC info */
  98
  99 #define MAX_NICS 8
 100 enum {
 101         NIC_NVECTORS_UNSPECIFIED = -1
 102 };
 103
 104 struct NICInfo {
 105     uint8_t macaddr[6];
 106     const char *model;
 107     const char *name;
 108     const char *devaddr;
 109     const char *id;
 110     VLANState *vlan;
 111     VLANClientState *vc;
 112     void *private;
 113     int used;
 114     int bootable;
 115     int nvectors;
 116 };
 117
 118 extern int nb_nics;
 119 extern NICInfo nd_table[MAX_NICS];
 120
 121 /* BT HCI info */
 122
 123 struct HCIInfo {
 124     int (*bdaddr_set)(struct HCIInfo *hci, const uint8_t *bd_addr);
 125     void (*cmd_send)(struct HCIInfo *hci, const uint8_t *data, int len);
 126     void (*sco_send)(struct HCIInfo *hci, const uint8_t *data, int len);
 127     void (*acl_send)(struct HCIInfo *hci, const uint8_t *data, int len);
 128     void *opaque;
 129     void (*evt_recv)(void *opaque, const uint8_t *data, int len);
 130     void (*acl_recv)(void *opaque, const uint8_t *data, int len);
 131 };
 132
 133 struct HCIInfo *qemu_next_hci(void);
 134
 135 /* checksumming functions (net-checksum.c) */
 136 uint32_t net_checksum_add(int len, uint8_t *buf);
 137 uint16_t net_checksum_finish(uint32_t sum);
 138 uint16_t net_checksum_tcpudp(uint16_t length, uint16_t proto,
 139                              uint8_t *addrs, uint8_t *buf);
 140 void net_checksum_calculate(uint8_t *data, int length);
 141
 142 /* from net.c */
 143 extern const char *legacy_tftp_prefix;
 144 extern const char *legacy_bootp_filename;
 145
 146 int net_client_init(Monitor *mon, const char *device, const char *p);
 147 void net_client_uninit(NICInfo *nd);
 148 int net_client_parse(const char *str);
 149 void net_slirp_smb(const char *exported_dir);
 150 void net_slirp_hostfwd_add(Monitor *mon, const QDict *qdict);
 151 void net_slirp_hostfwd_remove(Monitor *mon, const QDict *qdict);
 152 void net_slirp_redir(const char *redir_str);
 153 void net_cleanup(void);
 154 void net_client_check(void);
 155 void net_set_boot_mask(int boot_mask);
 156 void net_host_device_add(Monitor *mon, const QDict *qdict);
 157 void net_host_device_remove(Monitor *mon, const QDict *qdict);
 158
 159 #define DEFAULT_NETWORK_SCRIPT "/etc/qemu-ifup"
 160 #define DEFAULT_NETWORK_DOWN_SCRIPT "/etc/qemu-ifdown"
 161 #ifdef __sun__
 162 #define SMBD_COMMAND "/usr/sfw/sbin/smbd"
 163 #else
 164 #define SMBD_COMMAND "/usr/sbin/smbd"
 165 #endif
 166
 167 void qdev_get_macaddr(DeviceState *dev, uint8_t *macaddr);
 168 VLANClientState *qdev_get_vlan_client(DeviceState *dev,
 169                                       NetCanReceive *can_receive,
 170                                       NetReceive *receive,
 171                                       NetReceiveIOV *receive_iov,
 172                                       NetCleanup *cleanup,
 173                                       void *opaque);
 174
 175 #endif