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     IOReadHandler *fd_read_raw;
  19     IOReadvHandler *fd_readv;
  20     /* Packets may still be sent if this returns zero.  It's used to
  21        rate-limit the slirp code.  */
  22     IOCanRWHandler *fd_can_read;
  23     NetCleanup *cleanup;
  24     LinkStatusChanged *link_status_changed;
  25     int link_down;
  26     SetOffload *set_offload;
  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 struct VLANPacket {
  38     struct VLANPacket *next;
  39     VLANClientState *sender;
  40     int size;
  41     uint8_t data[0];
  42 };
  43
  44 struct VLANState {
  45     int id;
  46     VLANClientState *first_client;
  47     struct VLANState *next;
  48     unsigned int nb_guest_devs, nb_host_devs;
  49     VLANPacket *send_queue;
  50     int delivering;
  51 };
  52
  53 VLANState *qemu_find_vlan(int id);
  54 VLANClientState *qemu_new_vlan_client(VLANState *vlan,
  55                                       const char *model,
  56                                       const char *name,
  57                                       IOReadHandler *fd_read,
  58                                       IOCanRWHandler *fd_can_read,
  59                                       NetCleanup *cleanup,
  60                                       void *opaque);
  61 void qemu_del_vlan_client(VLANClientState *vc);
  62 VLANClientState *qemu_find_vlan_client(VLANState *vlan, void *opaque);
  63 int qemu_can_send_packet(VLANClientState *vc);
  64 ssize_t qemu_sendv_packet(VLANClientState *vc, const struct iovec *iov,
  65                           int iovcnt);
  66 int qemu_send_packet(VLANClientState *vc, const uint8_t *buf, int size);
  67 void qemu_send_packet_raw(VLANClientState *vc, const uint8_t *buf, int size);
  68 void qemu_format_nic_info_str(VLANClientState *vc, uint8_t macaddr[6]);
  69 void qemu_check_nic_model(NICInfo *nd, const char *model);
  70 void qemu_check_nic_model_list(NICInfo *nd, const char * const *models,
  71                                const char *default_model);
  72 void qemu_handler_true(void *opaque);
  73
  74 void do_info_network(Monitor *mon);
  75 int do_set_link(Monitor *mon, const char *name, const char *up_or_down);
  76
  77 int tap_has_vnet_hdr(void *opaque);
  78 void tap_using_vnet_hdr(void *opaque, int using_vnet_hdr);
  79
  80 /* NIC info */
  81
  82 #define MAX_NICS 8
  83
  84 struct NICInfo {
  85     uint8_t macaddr[6];
  86     const char *model;
  87     const char *name;
  88     VLANState *vlan;
  89     void *private;
  90     int used;
  91 };
  92
  93 extern int nb_nics;
  94 extern NICInfo nd_table[MAX_NICS];
  95
  96 /* BT HCI info */
  97
  98 struct HCIInfo {
  99     int (*bdaddr_set)(struct HCIInfo *hci, const uint8_t *bd_addr);
 100     void (*cmd_send)(struct HCIInfo *hci, const uint8_t *data, int len);
 101     void (*sco_send)(struct HCIInfo *hci, const uint8_t *data, int len);
 102     void (*acl_send)(struct HCIInfo *hci, const uint8_t *data, int len);
 103     void *opaque;
 104     void (*evt_recv)(void *opaque, const uint8_t *data, int len);
 105     void (*acl_recv)(void *opaque, const uint8_t *data, int len);
 106 };
 107
 108 struct HCIInfo *qemu_next_hci(void);
 109
 110 /* checksumming functions (net-checksum.c) */
 111 uint32_t net_checksum_add(int len, uint8_t *buf);
 112 uint16_t net_checksum_finish(uint32_t sum);
 113 uint16_t net_checksum_tcpudp(uint16_t length, uint16_t proto,
 114                              uint8_t *addrs, uint8_t *buf);
 115 void net_checksum_calculate(uint8_t *data, int length);
 116
 117 /* from net.c */
 118 int net_client_init(const char *device, const char *p);
 119 void net_client_uninit(NICInfo *nd);
 120 int net_client_parse(const char *str);
 121 void net_slirp_smb(const char *exported_dir);
 122 void net_slirp_redir(Monitor *mon, const char *redir_str, const char *redir_opt2);
 123 void net_cleanup(void);
 124 int slirp_is_inited(void);
 125 void net_client_check(void);
 126 void net_host_device_add(Monitor *mon, const char *device, const char *opts);
 127 void net_host_device_remove(Monitor *mon, int vlan_id, const char *device);
 128
 129 #define DEFAULT_NETWORK_SCRIPT "/etc/qemu-ifup"
 130 #define DEFAULT_NETWORK_DOWN_SCRIPT "/etc/qemu-ifdown"
 131 #ifdef __sun__
 132 #define SMBD_COMMAND "/usr/sfw/sbin/smbd"
 133 #else
 134 #define SMBD_COMMAND "/usr/sbin/smbd"
 135 #endif
 136
 137 void qdev_get_macaddr(DeviceState *dev, uint8_t *macaddr);
 138 VLANClientState *qdev_get_vlan_client(DeviceState *dev,
 139                                       IOReadHandler *fd_read,
 140                                       IOCanRWHandler *fd_can_read,
 141                                       NetCleanup *cleanup,
 142                                       void *opaque);
 143
 144 #endif