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