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      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 *);
     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);
     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_flush_queued_packets(VLANClientState *vc);
     74 void qemu_format_nic_info_str(VLANClientState *vc, uint8_t macaddr[6]);
     75 void qemu_check_nic_model(NICInfo *nd, const char *model);
     76 void qemu_check_nic_model_list(NICInfo *nd, const char * const *models,
     77                                const char *default_model);
     78 void qemu_handler_true(void *opaque);
     79 
     80 void do_info_network(Monitor *mon);
     81 int do_set_link(Monitor *mon, const char *name, const char *up_or_down);
     82 
     83 /* NIC info */
     84 
     85 #define MAX_NICS 8
     86 
     87 struct NICInfo {
     88     uint8_t macaddr[6];
     89     const char *model;
     90     const char *name;
     91     VLANState *vlan;
     92     void *private;
     93     int used;
     94 };
     95 
     96 extern int nb_nics;
     97 extern NICInfo nd_table[MAX_NICS];
     98 
     99 /* BT HCI info */
    100 
    101 struct HCIInfo {
    102     int (*bdaddr_set)(struct HCIInfo *hci, const uint8_t *bd_addr);
    103     void (*cmd_send)(struct HCIInfo *hci, const uint8_t *data, int len);
    104     void (*sco_send)(struct HCIInfo *hci, const uint8_t *data, int len);
    105     void (*acl_send)(struct HCIInfo *hci, const uint8_t *data, int len);
    106     void *opaque;
    107     void (*evt_recv)(void *opaque, const uint8_t *data, int len);
    108     void (*acl_recv)(void *opaque, const uint8_t *data, int len);
    109 };
    110 
    111 struct HCIInfo *qemu_next_hci(void);
    112 
    113 /* checksumming functions (net-checksum.c) */
    114 uint32_t net_checksum_add(int len, uint8_t *buf);
    115 uint16_t net_checksum_finish(uint32_t sum);
    116 uint16_t net_checksum_tcpudp(uint16_t length, uint16_t proto,
    117                              uint8_t *addrs, uint8_t *buf);
    118 void net_checksum_calculate(uint8_t *data, int length);
    119 
    120 /* from net.c */
    121 int net_client_init(Monitor *mon, const char *device, const char *p);
    122 void net_client_uninit(NICInfo *nd);
    123 int net_client_parse(const char *str);
    124 void net_slirp_smb(const char *exported_dir);
    125 void net_slirp_redir(Monitor *mon, const char *redir_str, const char *redir_opt2);
    126 void net_cleanup(void);
    127 int slirp_is_inited(void);
    128 void net_client_check(void);
    129 void net_host_device_add(Monitor *mon, const char *device, const char *opts);
    130 void net_host_device_remove(Monitor *mon, int vlan_id, const char *device);
    131 
    132 #define DEFAULT_NETWORK_SCRIPT "/etc/qemu-ifup"
    133 #define DEFAULT_NETWORK_DOWN_SCRIPT "/etc/qemu-ifdown"
    134 #ifdef __sun__
    135 #define SMBD_COMMAND "/usr/sfw/sbin/smbd"
    136 #else
    137 #define SMBD_COMMAND "/usr/sbin/smbd"
    138 #endif
    139 
    140 void qdev_get_macaddr(DeviceState *dev, uint8_t *macaddr);
    141 VLANClientState *qdev_get_vlan_client(DeviceState *dev,
    142                                       NetCanReceive *can_receive,
    143                                       NetReceive *receive,
    144                                       NetReceiveIOV *receive_iov,
    145                                       NetCleanup *cleanup,
    146                                       void *opaque);
    147 
    148 #endif
    149