net.h

   1 #ifndef QEMU_NET_H
   2 #define QEMU_NET_H
   3
   4 #include "qemu-common.h"
   5
   6 /* VLANs support */
   7
   8 typedef struct VLANClientState VLANClientState;
   9
  10 typedef int (NetCanReceive)(VLANClientState *);
  11 typedef ssize_t (NetReceive)(VLANClientState *, const uint8_t *, size_t);
  12 typedef ssize_t (NetReceiveIOV)(VLANClientState *, const struct iovec *, int);
  13 typedef void (NetCleanup) (VLANClientState *);
  14 typedef void (LinkStatusChanged)(VLANClientState *);
  15
  16 struct VLANClientState {
  17     NetReceive *receive;
  18     NetReceiveIOV *receive_iov;
  19     /* Packets may still be sent if this returns zero.  It's used to
  20        rate-limit the slirp code.  */
  21     NetCanReceive *can_receive;
  22     NetCleanup *cleanup;
  23     LinkStatusChanged *link_status_changed;
  24     int link_down;
  25     void *opaque;
  26     struct VLANClientState *next;
  27     struct VLANState *vlan;
  28     char *model;
  29     char *name;
  30     char info_str[256];
  31 };
  32
  33 typedef struct VLANPacket VLANPacket;
  34
  35 typedef void (NetPacketSent) (VLANClientState *, ssize_t);
  36
  37 struct VLANPacket {
  38     struct VLANPacket *next;
  39     VLANClientState *sender;
  40     int size;
  41     NetPacketSent *sent_cb;
  42     uint8_t data[0];
  43 };
  44
  45 struct VLANState {
  46     int id;
  47     VLANClientState *first_client;
  48     struct VLANState *next;
  49     unsigned int nb_guest_devs, nb_host_devs;
  50     VLANPacket *send_queue;
  51     int delivering;
  52 };
  53
  54 VLANState *qemu_find_vlan(int id, int allocate);
  55 VLANClientState *qemu_new_vlan_client(VLANState *vlan,
  56                                       const char *model,
  57                                       const char *name,
  58                                       NetCanReceive *can_receive,
  59                                       NetReceive *receive,
  60                                       NetReceiveIOV *receive_iov,
  61                                       NetCleanup *cleanup,
  62                                       void *opaque);
  63 void qemu_del_vlan_client(VLANClientState *vc);
  64 VLANClientState *qemu_find_vlan_client(VLANState *vlan, void *opaque);
  65 int qemu_can_send_packet(VLANClientState *vc);
  66 ssize_t qemu_sendv_packet(VLANClientState *vc, const struct iovec *iov,
  67                           int iovcnt);
  68 ssize_t qemu_sendv_packet_async(VLANClientState *vc, const struct iovec *iov,
  69                                 int iovcnt, NetPacketSent *sent_cb);
  70 void qemu_send_packet(VLANClientState *vc, const uint8_t *buf, int size);
  71 ssize_t qemu_send_packet_async(VLANClientState *vc, const uint8_t *buf,
  72                                int size, NetPacketSent *sent_cb);
  73 void qemu_purge_queued_packets(VLANClientState *vc);
  74 void qemu_flush_queued_packets(VLANClientState *vc);
  75 void qemu_format_nic_info_str(VLANClientState *vc, uint8_t macaddr[6]);
  76 void qemu_check_nic_model(NICInfo *nd, const char *model);
  77 void qemu_check_nic_model_list(NICInfo *nd, const char * const *models,
  78                                const char *default_model);
  79 void qemu_handler_true(void *opaque);
  80
  81 void do_info_network(Monitor *mon);
  82 void do_set_link(Monitor *mon, const char *name, const char *up_or_down);
  83
  84 void do_info_usernet(Monitor *mon);
  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     const char *model;
  96     const char *name;
  97     const char *devaddr;
  98     const char *id;
  99     VLANState *vlan;
 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, const char *device, const char *p);
 136 void net_client_uninit(NICInfo *nd);
 137 int net_client_parse(const char *str);
 138 void net_slirp_smb(const char *exported_dir);
 139 void net_slirp_hostfwd_add(Monitor *mon, const char *arg1,
 140                            const char *arg2, const char *arg3);
 141 void net_slirp_hostfwd_remove(Monitor *mon, const char *arg1,
 142                               const char *arg2, const char *arg3);
 143 void net_slirp_redir(const char *redir_str);
 144 void net_cleanup(void);
 145 void net_client_check(void);
 146 void net_set_boot_mask(int boot_mask);
 147 void net_host_device_add(Monitor *mon, const char *device, const char *opts);
 148 void net_host_device_remove(Monitor *mon, int vlan_id, const char *device);
 149
 150 #define DEFAULT_NETWORK_SCRIPT "/etc/qemu-ifup"
 151 #define DEFAULT_NETWORK_DOWN_SCRIPT "/etc/qemu-ifdown"
 152 #ifdef __sun__
 153 #define SMBD_COMMAND "/usr/sfw/sbin/smbd"
 154 #else
 155 #define SMBD_COMMAND "/usr/sbin/smbd"
 156 #endif
 157
 158 void qdev_get_macaddr(DeviceState *dev, uint8_t *macaddr);
 159 VLANClientState *qdev_get_vlan_client(DeviceState *dev,
 160                                       NetCanReceive *can_receive,
 161                                       NetReceive *receive,
 162                                       NetReceiveIOV *receive_iov,
 163                                       NetCleanup *cleanup,
 164                                       void *opaque);
 165
 166 #endif