net.h

   1 #ifndef QEMU_NET_H
   2 #define QEMU_NET_H
   3
   4 #include <stdbool.h>
   5 #include "qemu-queue.h"
   6 #include "qemu-common.h"
   7 #include "qdict.h"
   8 #include "qemu-option.h"
   9 #include "net/queue.h"
  10
  11 struct MACAddr {
  12     uint8_t a[6];
  13 };
  14
  15 /* qdev nic properties */
  16
  17 typedef struct NICConf {
  18     MACAddr macaddr;
  19     VLANState *vlan;
  20     VLANClientState *peer;
  21 } NICConf;
  22
  23 #define DEFINE_NIC_PROPERTIES(_state, _conf)                            \
  24     DEFINE_PROP_MACADDR("mac",   _state, _conf.macaddr),                \
  25     DEFINE_PROP_VLAN("vlan",     _state, _conf.vlan),                   \
  26     DEFINE_PROP_NETDEV("netdev", _state, _conf.peer)
  27
  28 /* VLANs support */
  29
  30 typedef enum {
  31     NET_CLIENT_TYPE_NONE,
  32     NET_CLIENT_TYPE_NIC,
  33     NET_CLIENT_TYPE_SLIRP,
  34     NET_CLIENT_TYPE_TAP,
  35     NET_CLIENT_TYPE_SOCKET,
  36     NET_CLIENT_TYPE_VDE,
  37     NET_CLIENT_TYPE_DUMP
  38 } net_client_type;
  39
  40 typedef void (NetPoll)(VLANClientState *, bool enable);
  41 typedef int (NetCanReceive)(VLANClientState *);
  42 typedef ssize_t (NetReceive)(VLANClientState *, const uint8_t *, size_t);
  43 typedef ssize_t (NetReceiveIOV)(VLANClientState *, const struct iovec *, int);
  44 typedef void (NetCleanup) (VLANClientState *);
  45 typedef void (LinkStatusChanged)(VLANClientState *);
  46
  47 typedef struct NetClientInfo {
  48     net_client_type type;
  49     size_t size;
  50     NetReceive *receive;
  51     NetReceive *receive_raw;
  52     NetReceiveIOV *receive_iov;
  53     NetCanReceive *can_receive;
  54     NetCleanup *cleanup;
  55     LinkStatusChanged *link_status_changed;
  56     NetPoll *poll;
  57 } NetClientInfo;
  58
  59 struct VLANClientState {
  60     NetClientInfo *info;
  61     int link_down;
  62     QTAILQ_ENTRY(VLANClientState) next;
  63     struct VLANState *vlan;
  64     VLANClientState *peer;
  65     NetQueue *send_queue;
  66     char *model;
  67     char *name;
  68     char info_str[256];
  69     unsigned receive_disabled : 1;
  70 };
  71
  72 typedef struct NICState {
  73     VLANClientState nc;
  74     NICConf *conf;
  75     void *opaque;
  76 } NICState;
  77
  78 struct VLANState {
  79     int id;
  80     QTAILQ_HEAD(, VLANClientState) clients;
  81     QTAILQ_ENTRY(VLANState) next;
  82     unsigned int nb_guest_devs, nb_host_devs;
  83     NetQueue *send_queue;
  84 };
  85
  86 VLANState *qemu_find_vlan(int id, int allocate);
  87 VLANClientState *qemu_find_netdev(const char *id);
  88 VLANClientState *qemu_new_net_client(NetClientInfo *info,
  89                                      VLANState *vlan,
  90                                      VLANClientState *peer,
  91                                      const char *model,
  92                                      const char *name);
  93 NICState *qemu_new_nic(NetClientInfo *info,
  94                        NICConf *conf,
  95                        const char *model,
  96                        const char *name,
  97                        void *opaque);
  98 void qemu_del_vlan_client(VLANClientState *vc);
  99 VLANClientState *qemu_find_vlan_client_by_name(Monitor *mon, int vlan_id,
 100                                                const char *client_str);
 101 typedef void (*qemu_nic_foreach)(NICState *nic, void *opaque);
 102 void qemu_foreach_nic(qemu_nic_foreach func, void *opaque);
 103 int qemu_can_send_packet(VLANClientState *vc);
 104 ssize_t qemu_sendv_packet(VLANClientState *vc, const struct iovec *iov,
 105                           int iovcnt);
 106 ssize_t qemu_sendv_packet_async(VLANClientState *vc, const struct iovec *iov,
 107                                 int iovcnt, NetPacketSent *sent_cb);
 108 void qemu_send_packet(VLANClientState *vc, const uint8_t *buf, int size);
 109 ssize_t qemu_send_packet_raw(VLANClientState *vc, const uint8_t *buf, int size);
 110 ssize_t qemu_send_packet_async(VLANClientState *vc, const uint8_t *buf,
 111                                int size, NetPacketSent *sent_cb);
 112 void qemu_purge_queued_packets(VLANClientState *vc);
 113 void qemu_flush_queued_packets(VLANClientState *vc);
 114 void qemu_format_nic_info_str(VLANClientState *vc, uint8_t macaddr[6]);
 115 void qemu_macaddr_default_if_unset(MACAddr *macaddr);
 116 int qemu_show_nic_models(const char *arg, const char *const *models);
 117 void qemu_check_nic_model(NICInfo *nd, const char *model);
 118 int qemu_find_nic_model(NICInfo *nd, const char * const *models,
 119                         const char *default_model);
 120
 121 void do_info_network(Monitor *mon);
 122 void do_set_link(Monitor *mon, const QDict *qdict);
 123
 124 /* NIC info */
 125
 126 #define MAX_NICS 8
 127 enum {
 128         NIC_NVECTORS_UNSPECIFIED = -1
 129 };
 130
 131 struct NICInfo {
 132     uint8_t macaddr[6];
 133     char *model;
 134     char *name;
 135     char *devaddr;
 136     VLANState *vlan;
 137     VLANClientState *netdev;
 138     int used;
 139     int bootable;
 140     int nvectors;
 141 };
 142
 143 extern int nb_nics;
 144 extern NICInfo nd_table[MAX_NICS];
 145 extern int default_net;
 146
 147 /* BT HCI info */
 148
 149 struct HCIInfo {
 150     int (*bdaddr_set)(struct HCIInfo *hci, const uint8_t *bd_addr);
 151     void (*cmd_send)(struct HCIInfo *hci, const uint8_t *data, int len);
 152     void (*sco_send)(struct HCIInfo *hci, const uint8_t *data, int len);
 153     void (*acl_send)(struct HCIInfo *hci, const uint8_t *data, int len);
 154     void *opaque;
 155     void (*evt_recv)(void *opaque, const uint8_t *data, int len);
 156     void (*acl_recv)(void *opaque, const uint8_t *data, int len);
 157 };
 158
 159 struct HCIInfo *qemu_next_hci(void);
 160
 161 /* from net.c */
 162 extern const char *legacy_tftp_prefix;
 163 extern const char *legacy_bootp_filename;
 164
 165 int net_client_init(Monitor *mon, QemuOpts *opts, int is_netdev);
 166 void net_client_uninit(NICInfo *nd);
 167 int net_client_parse(QemuOptsList *opts_list, const char *str);
 168 int net_init_clients(void);
 169 void net_cleanup(void);
 170 void net_set_boot_mask(int boot_mask);
 171 void net_host_device_add(Monitor *mon, const QDict *qdict);
 172 void net_host_device_remove(Monitor *mon, const QDict *qdict);
 173
 174 #define DEFAULT_NETWORK_SCRIPT "/etc/qemu-ifup"
 175 #define DEFAULT_NETWORK_DOWN_SCRIPT "/etc/qemu-ifdown"
 176 #ifdef __sun__
 177 #define SMBD_COMMAND "/usr/sfw/sbin/smbd"
 178 #else
 179 #define SMBD_COMMAND "/usr/sbin/smbd"
 180 #endif
 181
 182 void qdev_set_nic_properties(DeviceState *dev, NICInfo *nd);
 183
 184 int net_handle_fd_param(Monitor *mon, const char *param);
 185
 186 #endif