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 struct MACAddr {
  11     uint8_t a[6];
  12 };
  13
  14 /* qdev nic properties */
  15
  16 typedef struct NICConf {
  17     MACAddr macaddr;
  18     VLANState *vlan;
  19     VLANClientState *peer;
  20 } NICConf;
  21
  22 #define DEFINE_NIC_PROPERTIES(_state, _conf)                            \
  23     DEFINE_PROP_MACADDR("mac",   _state, _conf.macaddr),                \
  24     DEFINE_PROP_VLAN("vlan",     _state, _conf.vlan),                   \
  25     DEFINE_PROP_NETDEV("netdev", _state, _conf.peer)
  26
  27 /* VLANs support */
  28
  29 typedef enum {
  30     NET_CLIENT_TYPE_NONE,
  31     NET_CLIENT_TYPE_NIC,
  32     NET_CLIENT_TYPE_SLIRP,
  33     NET_CLIENT_TYPE_TAP,
  34     NET_CLIENT_TYPE_SOCKET,
  35     NET_CLIENT_TYPE_VDE,
  36     NET_CLIENT_TYPE_DUMP
  37 } net_client_type;
  38
  39 typedef int (NetCanReceive)(VLANClientState *);
  40 typedef ssize_t (NetReceive)(VLANClientState *, const uint8_t *, size_t);
  41 typedef ssize_t (NetReceiveIOV)(VLANClientState *, const struct iovec *, int);
  42 typedef void (NetCleanup) (VLANClientState *);
  43 typedef void (LinkStatusChanged)(VLANClientState *);
  44
  45 struct VLANClientState {
  46     net_client_type type;
  47     NetReceive *receive;
  48     NetReceive *receive_raw;
  49     NetReceiveIOV *receive_iov;
  50     /* Packets may still be sent if this returns zero.  It's used to
  51        rate-limit the slirp code.  */
  52     NetCanReceive *can_receive;
  53     NetCleanup *cleanup;
  54     LinkStatusChanged *link_status_changed;
  55     int link_down;
  56     void *opaque;
  57     QTAILQ_ENTRY(VLANClientState) next;
  58     struct VLANState *vlan;
  59     VLANClientState *peer;
  60     NetQueue *send_queue;
  61     char *model;
  62     char *name;
  63     char info_str[256];
  64 };
  65
  66 struct VLANState {
  67     int id;
  68     QTAILQ_HEAD(, VLANClientState) clients;
  69     QTAILQ_ENTRY(VLANState) next;
  70     unsigned int nb_guest_devs, nb_host_devs;
  71     NetQueue *send_queue;
  72 };
  73
  74 VLANState *qemu_find_vlan(int id, int allocate);
  75 VLANClientState *qemu_find_netdev(const char *id);
  76 VLANClientState *qemu_new_vlan_client(net_client_type type,
  77                                       VLANState *vlan,
  78                                       VLANClientState *peer,
  79                                       const char *model,
  80                                       const char *name,
  81                                       NetCanReceive *can_receive,
  82                                       NetReceive *receive,
  83                                       NetReceive *receive_raw,
  84                                       NetReceiveIOV *receive_iov,
  85                                       NetCleanup *cleanup,
  86                                       void *opaque);
  87 void qemu_del_vlan_client(VLANClientState *vc);
  88 VLANClientState *qemu_find_vlan_client(VLANState *vlan, void *opaque);
  89 int qemu_can_send_packet(VLANClientState *vc);
  90 ssize_t qemu_sendv_packet(VLANClientState *vc, const struct iovec *iov,
  91                           int iovcnt);
  92 ssize_t qemu_sendv_packet_async(VLANClientState *vc, const struct iovec *iov,
  93                                 int iovcnt, NetPacketSent *sent_cb);
  94 void qemu_send_packet(VLANClientState *vc, const uint8_t *buf, int size);
  95 ssize_t qemu_send_packet_raw(VLANClientState *vc, const uint8_t *buf, int size);
  96 ssize_t qemu_send_packet_async(VLANClientState *vc, const uint8_t *buf,
  97                                int size, NetPacketSent *sent_cb);
  98 void qemu_purge_queued_packets(VLANClientState *vc);
  99 void qemu_flush_queued_packets(VLANClientState *vc);
 100 void qemu_format_nic_info_str(VLANClientState *vc, uint8_t macaddr[6]);
 101 void qemu_macaddr_default_if_unset(MACAddr *macaddr);
 102 int qemu_show_nic_models(const char *arg, const char *const *models);
 103 void qemu_check_nic_model(NICInfo *nd, const char *model);
 104 int qemu_find_nic_model(NICInfo *nd, const char * const *models,
 105                         const char *default_model);
 106
 107 void do_info_network(Monitor *mon);
 108 void do_set_link(Monitor *mon, const QDict *qdict);
 109
 110 void do_info_usernet(Monitor *mon);
 111
 112 /* NIC info */
 113
 114 #define MAX_NICS 8
 115 enum {
 116         NIC_NVECTORS_UNSPECIFIED = -1
 117 };
 118
 119 struct NICInfo {
 120     uint8_t macaddr[6];
 121     char *model;
 122     char *name;
 123     char *devaddr;
 124     VLANState *vlan;
 125     VLANClientState *netdev;
 126     VLANClientState *vc;
 127     void *private;
 128     int used;
 129     int bootable;
 130     int nvectors;
 131 };
 132
 133 extern int nb_nics;
 134 extern NICInfo nd_table[MAX_NICS];
 135
 136 /* BT HCI info */
 137
 138 struct HCIInfo {
 139     int (*bdaddr_set)(struct HCIInfo *hci, const uint8_t *bd_addr);
 140     void (*cmd_send)(struct HCIInfo *hci, const uint8_t *data, int len);
 141     void (*sco_send)(struct HCIInfo *hci, const uint8_t *data, int len);
 142     void (*acl_send)(struct HCIInfo *hci, const uint8_t *data, int len);
 143     void *opaque;
 144     void (*evt_recv)(void *opaque, const uint8_t *data, int len);
 145     void (*acl_recv)(void *opaque, const uint8_t *data, int len);
 146 };
 147
 148 struct HCIInfo *qemu_next_hci(void);
 149
 150 /* checksumming functions (net-checksum.c) */
 151 uint32_t net_checksum_add(int len, uint8_t *buf);
 152 uint16_t net_checksum_finish(uint32_t sum);
 153 uint16_t net_checksum_tcpudp(uint16_t length, uint16_t proto,
 154                              uint8_t *addrs, uint8_t *buf);
 155 void net_checksum_calculate(uint8_t *data, int length);
 156
 157 /* from net.c */
 158 extern const char *legacy_tftp_prefix;
 159 extern const char *legacy_bootp_filename;
 160
 161 int net_client_init(Monitor *mon, QemuOpts *opts, int is_netdev);
 162 void net_client_uninit(NICInfo *nd);
 163 int net_client_parse(QemuOptsList *opts_list, const char *str);
 164 int net_init_clients(void);
 165 int net_slirp_smb(const char *exported_dir);
 166 void net_slirp_hostfwd_add(Monitor *mon, const QDict *qdict);
 167 void net_slirp_hostfwd_remove(Monitor *mon, const QDict *qdict);
 168 int net_slirp_redir(const char *redir_str);
 169 void net_cleanup(void);
 170 void net_set_boot_mask(int boot_mask);
 171 void net_host_device_add(Monitor *mon, const QDict *qdict);
 172 void net_host_device_remove(Monitor *mon, const QDict *qdict);
 173
 174 #define DEFAULT_NETWORK_SCRIPT "/etc/qemu-ifup"
 175 #define DEFAULT_NETWORK_DOWN_SCRIPT "/etc/qemu-ifdown"
 176 #ifdef __sun__
 177 #define SMBD_COMMAND "/usr/sfw/sbin/smbd"
 178 #else
 179 #define SMBD_COMMAND "/usr/sbin/smbd"
 180 #endif
 181
 182 void qdev_set_nic_properties(DeviceState *dev, NICInfo *nd);
 183
 184 int tap_has_ufo(VLANClientState *vc);
 185 int tap_has_vnet_hdr(VLANClientState *vc);
 186 void tap_using_vnet_hdr(VLANClientState *vc, int using_vnet_hdr);
 187 void tap_set_offload(VLANClientState *vc, int csum, int tso4, int tso6, int ecn, int ufo);
 188
 189 #endif