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