net.h

   1 #ifndef QEMU_NET_H
   2 #define QEMU_NET_H
   3
   4 #include "qemu-common.h"
   5
   6 /* VLANs support */
   7
   8 typedef ssize_t (IOReadvHandler)(void *, const struct iovec *, int);
   9
  10 typedef struct VLANClientState VLANClientState;
  11
  12 typedef void (NetCleanup) (VLANClientState *);
  13 typedef void (LinkStatusChanged)(VLANClientState *);
  14 typedef void (SetOffload)(VLANClientState *, int, int, int, int);
  15
  16 struct VLANClientState {
  17     IOReadHandler *fd_read;
  18     IOReadvHandler *fd_readv;
  19     /* Packets may still be sent if this returns zero.  It's used to
  20        rate-limit the slirp code.  */
  21     IOCanRWHandler *fd_can_read;
  22     NetCleanup *cleanup;
  23     LinkStatusChanged *link_status_changed;
  24     int link_down;
  25     SetOffload *set_offload;
  26     void *opaque;
  27     struct VLANClientState *next;
  28     struct VLANState *vlan;
  29     char *model;
  30     char *name;
  31     char info_str[256];
  32 };
  33
  34 struct VLANState {
  35     int id;
  36     VLANClientState *first_client;
  37     struct VLANState *next;
  38     unsigned int nb_guest_devs, nb_host_devs;
  39 };
  40
  41 VLANState *qemu_find_vlan(int id);
  42 VLANClientState *qemu_new_vlan_client(VLANState *vlan,
  43                                       const char *model,
  44                                       const char *name,
  45                                       IOReadHandler *fd_read,
  46                                       IOCanRWHandler *fd_can_read,
  47                                       NetCleanup *cleanup,
  48                                       void *opaque);
  49 void qemu_del_vlan_client(VLANClientState *vc);
  50 VLANClientState *qemu_find_vlan_client(VLANState *vlan, void *opaque);
  51 int qemu_can_send_packet(VLANClientState *vc);
  52 ssize_t qemu_sendv_packet(VLANClientState *vc, const struct iovec *iov,
  53                           int iovcnt);
  54 int qemu_send_packet(VLANClientState *vc, const uint8_t *buf, int size);
  55 void qemu_format_nic_info_str(VLANClientState *vc, uint8_t macaddr[6]);
  56 void qemu_check_nic_model(NICInfo *nd, const char *model);
  57 void qemu_check_nic_model_list(NICInfo *nd, const char * const *models,
  58                                const char *default_model);
  59 void qemu_handler_true(void *opaque);
  60
  61 void do_info_network(void);
  62 int do_set_link(const char *name, const char *up_or_down);
  63
  64 int tap_has_vnet_hdr(void *opaque);
  65 void tap_using_vnet_hdr(void *opaque, int using_vnet_hdr);
  66
  67 /* NIC info */
  68
  69 #define MAX_NICS 8
  70
  71 struct NICInfo {
  72     uint8_t macaddr[6];
  73     const char *model;
  74     const char *name;
  75     VLANState *vlan;
  76     VLANClientState *vc;
  77     void *private;
  78     int used;
  79 };
  80
  81 extern int nb_nics;
  82 extern NICInfo nd_table[MAX_NICS];
  83
  84 /* BT HCI info */
  85
  86 struct HCIInfo {
  87     int (*bdaddr_set)(struct HCIInfo *hci, const uint8_t *bd_addr);
  88     void (*cmd_send)(struct HCIInfo *hci, const uint8_t *data, int len);
  89     void (*sco_send)(struct HCIInfo *hci, const uint8_t *data, int len);
  90     void (*acl_send)(struct HCIInfo *hci, const uint8_t *data, int len);
  91     void *opaque;
  92     void (*evt_recv)(void *opaque, const uint8_t *data, int len);
  93     void (*acl_recv)(void *opaque, const uint8_t *data, int len);
  94 };
  95
  96 struct HCIInfo *qemu_next_hci(void);
  97
  98 /* checksumming functions (net-checksum.c) */
  99 uint32_t net_checksum_add(int len, uint8_t *buf);
 100 uint16_t net_checksum_finish(uint32_t sum);
 101 uint16_t net_checksum_tcpudp(uint16_t length, uint16_t proto,
 102                              uint8_t *addrs, uint8_t *buf);
 103 void net_checksum_calculate(uint8_t *data, int length);
 104
 105 /* from net.c */
 106 int net_client_init(const char *device, const char *p);
 107 void net_client_uninit(NICInfo *nd);
 108 int net_client_parse(const char *str);
 109 void net_slirp_smb(const char *exported_dir);
 110 void net_slirp_redir(const char *redir_str);
 111 void net_cleanup(void);
 112 int slirp_is_inited(void);
 113 void net_client_check(void);
 114 void net_host_device_add(const char *device, const char *opts);
 115 void net_host_device_remove(int vlan_id, const char *device);
 116
 117 #define DEFAULT_NETWORK_SCRIPT "/etc/qemu-ifup"
 118 #define DEFAULT_NETWORK_DOWN_SCRIPT "/etc/qemu-ifdown"
 119 #ifdef __sun__
 120 #define SMBD_COMMAND "/usr/sfw/sbin/smbd"
 121 #else
 122 #define SMBD_COMMAND "/usr/sbin/smbd"
 123 #endif
 124
 125 #endif