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