net.h

   1 #ifndef QEMU_NET_H
   2 #define QEMU_NET_H
   3
   4 #include "sys-queue.h"
   5 #include "qemu-common.h"
   6
   7 /* VLANs support */
   8
   9 typedef struct VLANClientState VLANClientState;
  10
  11 typedef int (NetCanReceive)(VLANClientState *);
  12 typedef ssize_t (NetReceive)(VLANClientState *, const uint8_t *, size_t);
  13 typedef ssize_t (NetReceiveIOV)(VLANClientState *, const struct iovec *, int);
  14 typedef void (NetCleanup) (VLANClientState *);
  15 typedef void (LinkStatusChanged)(VLANClientState *);
  16 typedef void (SetOffload)(VLANClientState *, int, int, int, int);
  17
  18 struct VLANClientState {
  19     NetReceive *receive;
  20     NetReceive *receive_raw;
  21     NetReceiveIOV *receive_iov;
  22     /* Packets may still be sent if this returns zero.  It's used to
  23        rate-limit the slirp code.  */
  24     NetCanReceive *can_receive;
  25     NetCleanup *cleanup;
  26     LinkStatusChanged *link_status_changed;
  27     int link_down;
  28     SetOffload *set_offload;
  29     void *opaque;
  30     struct VLANClientState *next;
  31     struct VLANState *vlan;
  32     char *model;
  33     char *name;
  34     char info_str[256];
  35 };
  36
  37 typedef struct VLANPacket VLANPacket;
  38
  39 typedef void (NetPacketSent) (VLANClientState *, ssize_t);
  40
  41 struct VLANPacket {
  42     TAILQ_ENTRY(VLANPacket) entry;
  43     VLANClientState *sender;
  44     int size;
  45     int raw;
  46     NetPacketSent *sent_cb;
  47     uint8_t data[0];
  48 };
  49
  50 struct VLANState {
  51     int id;
  52     VLANClientState *first_client;
  53     struct VLANState *next;
  54     unsigned int nb_guest_devs, nb_host_devs;
  55     TAILQ_HEAD(send_queue, VLANPacket) send_queue;
  56     int delivering;
  57 };
  58
  59 VLANState *qemu_find_vlan(int id, int allocate);
  60 VLANClientState *qemu_new_vlan_client(VLANState *vlan,
  61                                       const char *model,
  62                                       const char *name,
  63                                       NetCanReceive *can_receive,
  64                                       NetReceive *receive,
  65                                       NetReceiveIOV *receive_iov,
  66                                       NetCleanup *cleanup,
  67                                       void *opaque);
  68 void qemu_del_vlan_client(VLANClientState *vc);
  69 VLANClientState *qemu_find_vlan_client(VLANState *vlan, void *opaque);
  70 int qemu_can_send_packet(VLANClientState *vc);
  71 ssize_t qemu_sendv_packet(VLANClientState *vc, const struct iovec *iov,
  72                           int iovcnt);
  73 ssize_t qemu_sendv_packet_async(VLANClientState *vc, const struct iovec *iov,
  74                                 int iovcnt, NetPacketSent *sent_cb);
  75 ssize_t qemu_send_packet(VLANClientState *vc, const uint8_t *buf, int size);
  76 ssize_t qemu_send_packet_raw(VLANClientState *vc, const uint8_t *buf, int size);
  77 ssize_t qemu_send_packet_async(VLANClientState *vc, const uint8_t *buf,
  78                                int size, NetPacketSent *sent_cb);
  79 void qemu_purge_queued_packets(VLANClientState *vc);
  80 void qemu_flush_queued_packets(VLANClientState *vc);
  81 void qemu_format_nic_info_str(VLANClientState *vc, uint8_t macaddr[6]);
  82 void qemu_check_nic_model(NICInfo *nd, const char *model);
  83 void qemu_check_nic_model_list(NICInfo *nd, const char * const *models,
  84                                const char *default_model);
  85 void qemu_handler_true(void *opaque);
  86
  87 void do_info_network(Monitor *mon);
  88 void do_set_link(Monitor *mon, const char *name, const char *up_or_down);
  89
  90 void do_info_usernet(Monitor *mon);
  91
  92 int tap_has_vnet_hdr(void *opaque);
  93 void tap_using_vnet_hdr(void *opaque, int using_vnet_hdr);
  94
  95 /* NIC info */
  96
  97 #define MAX_NICS 8
  98 enum {
  99         NIC_NVECTORS_UNSPECIFIED = -1
 100 };
 101
 102 struct NICInfo {
 103     uint8_t macaddr[6];
 104     const char *model;
 105     const char *name;
 106     const char *devaddr;
 107     const char *id;
 108     VLANState *vlan;
 109     VLANClientState *vc;
 110     void *private;
 111     int used;
 112     int bootable;
 113     int nvectors;
 114 };
 115
 116 extern int nb_nics;
 117 extern NICInfo nd_table[MAX_NICS];
 118
 119 /* BT HCI info */
 120
 121 struct HCIInfo {
 122     int (*bdaddr_set)(struct HCIInfo *hci, const uint8_t *bd_addr);
 123     void (*cmd_send)(struct HCIInfo *hci, const uint8_t *data, int len);
 124     void (*sco_send)(struct HCIInfo *hci, const uint8_t *data, int len);
 125     void (*acl_send)(struct HCIInfo *hci, const uint8_t *data, int len);
 126     void *opaque;
 127     void (*evt_recv)(void *opaque, const uint8_t *data, int len);
 128     void (*acl_recv)(void *opaque, const uint8_t *data, int len);
 129 };
 130
 131 struct HCIInfo *qemu_next_hci(void);
 132
 133 /* checksumming functions (net-checksum.c) */
 134 uint32_t net_checksum_add(int len, uint8_t *buf);
 135 uint16_t net_checksum_finish(uint32_t sum);
 136 uint16_t net_checksum_tcpudp(uint16_t length, uint16_t proto,
 137                              uint8_t *addrs, uint8_t *buf);
 138 void net_checksum_calculate(uint8_t *data, int length);
 139
 140 /* from net.c */
 141 extern const char *legacy_tftp_prefix;
 142 extern const char *legacy_bootp_filename;
 143
 144 int net_client_init(Monitor *mon, const char *device, const char *p);
 145 void net_client_uninit(NICInfo *nd);
 146 int net_client_parse(const char *str);
 147 void net_slirp_smb(const char *exported_dir);
 148 void net_slirp_hostfwd_add(Monitor *mon, const char *arg1,
 149                            const char *arg2, const char *arg3);
 150 void net_slirp_hostfwd_remove(Monitor *mon, const char *arg1,
 151                               const char *arg2, const char *arg3);
 152 void net_slirp_redir(const char *redir_str);
 153 void net_cleanup(void);
 154 void net_client_check(void);
 155 void net_set_boot_mask(int boot_mask);
 156 void net_host_device_add(Monitor *mon, const char *device, const char *opts);
 157 void net_host_device_remove(Monitor *mon, int vlan_id, const char *device);
 158
 159 #define DEFAULT_NETWORK_SCRIPT "/etc/qemu-ifup"
 160 #define DEFAULT_NETWORK_DOWN_SCRIPT "/etc/qemu-ifdown"
 161 #ifdef __sun__
 162 #define SMBD_COMMAND "/usr/sfw/sbin/smbd"
 163 #else
 164 #define SMBD_COMMAND "/usr/sbin/smbd"
 165 #endif
 166
 167 void qdev_get_macaddr(DeviceState *dev, uint8_t *macaddr);
 168 VLANClientState *qdev_get_vlan_client(DeviceState *dev,
 169                                       NetCanReceive *can_receive,
 170                                       NetReceive *receive,
 171                                       NetReceiveIOV *receive_iov,
 172                                       NetCleanup *cleanup,
 173                                       void *opaque);
 174
 175 #endif