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