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