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