File:  [Qemu by Fabrice Bellard] / qemu / net.h
Revision 1.1.1.10 (vendor branch): download - view: text, annotated - select for diffs
Tue Apr 24 18:56:52 2018 UTC (3 years, 1 month ago) by root
Branches: qemu, MAIN
CVS tags: qemu1001, qemu1000, qemu0151, HEAD
qemu 0.15.1

    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: #include "qemu-option.h"
    8: #include "net/queue.h"
    9: 
   10: struct MACAddr {
   11:     uint8_t a[6];
   12: };
   13: 
   14: /* qdev nic properties */
   15: 
   16: typedef struct NICConf {
   17:     MACAddr macaddr;
   18:     VLANState *vlan;
   19:     VLANClientState *peer;
   20:     int32_t bootindex;
   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:     DEFINE_PROP_INT32("bootindex", _state, _conf.bootindex, -1)
   28: 
   29: /* VLANs support */
   30: 
   31: typedef enum {
   32:     NET_CLIENT_TYPE_NONE,
   33:     NET_CLIENT_TYPE_NIC,
   34:     NET_CLIENT_TYPE_USER,
   35:     NET_CLIENT_TYPE_TAP,
   36:     NET_CLIENT_TYPE_SOCKET,
   37:     NET_CLIENT_TYPE_VDE,
   38:     NET_CLIENT_TYPE_DUMP,
   39: 
   40:     NET_CLIENT_TYPE_MAX
   41: } net_client_type;
   42: 
   43: typedef void (NetPoll)(VLANClientState *, bool enable);
   44: typedef int (NetCanReceive)(VLANClientState *);
   45: typedef ssize_t (NetReceive)(VLANClientState *, const uint8_t *, size_t);
   46: typedef ssize_t (NetReceiveIOV)(VLANClientState *, const struct iovec *, int);
   47: typedef void (NetCleanup) (VLANClientState *);
   48: typedef void (LinkStatusChanged)(VLANClientState *);
   49: 
   50: typedef struct NetClientInfo {
   51:     net_client_type type;
   52:     size_t size;
   53:     NetReceive *receive;
   54:     NetReceive *receive_raw;
   55:     NetReceiveIOV *receive_iov;
   56:     NetCanReceive *can_receive;
   57:     NetCleanup *cleanup;
   58:     LinkStatusChanged *link_status_changed;
   59:     NetPoll *poll;
   60: } NetClientInfo;
   61: 
   62: struct VLANClientState {
   63:     NetClientInfo *info;
   64:     int link_down;
   65:     QTAILQ_ENTRY(VLANClientState) next;
   66:     struct VLANState *vlan;
   67:     VLANClientState *peer;
   68:     NetQueue *send_queue;
   69:     char *model;
   70:     char *name;
   71:     char info_str[256];
   72:     unsigned receive_disabled : 1;
   73: };
   74: 
   75: typedef struct NICState {
   76:     VLANClientState nc;
   77:     NICConf *conf;
   78:     void *opaque;
   79:     bool peer_deleted;
   80: } NICState;
   81: 
   82: struct VLANState {
   83:     int id;
   84:     QTAILQ_HEAD(, VLANClientState) clients;
   85:     QTAILQ_ENTRY(VLANState) next;
   86:     NetQueue *send_queue;
   87: };
   88: 
   89: VLANState *qemu_find_vlan(int id, int allocate);
   90: VLANClientState *qemu_find_netdev(const char *id);
   91: VLANClientState *qemu_new_net_client(NetClientInfo *info,
   92:                                      VLANState *vlan,
   93:                                      VLANClientState *peer,
   94:                                      const char *model,
   95:                                      const char *name);
   96: NICState *qemu_new_nic(NetClientInfo *info,
   97:                        NICConf *conf,
   98:                        const char *model,
   99:                        const char *name,
  100:                        void *opaque);
  101: void qemu_del_vlan_client(VLANClientState *vc);
  102: VLANClientState *qemu_find_vlan_client_by_name(Monitor *mon, int vlan_id,
  103:                                                const char *client_str);
  104: typedef void (*qemu_nic_foreach)(NICState *nic, void *opaque);
  105: void qemu_foreach_nic(qemu_nic_foreach func, void *opaque);
  106: int qemu_can_send_packet(VLANClientState *vc);
  107: ssize_t qemu_sendv_packet(VLANClientState *vc, const struct iovec *iov,
  108:                           int iovcnt);
  109: ssize_t qemu_sendv_packet_async(VLANClientState *vc, const struct iovec *iov,
  110:                                 int iovcnt, NetPacketSent *sent_cb);
  111: void qemu_send_packet(VLANClientState *vc, const uint8_t *buf, int size);
  112: ssize_t qemu_send_packet_raw(VLANClientState *vc, const uint8_t *buf, int size);
  113: ssize_t qemu_send_packet_async(VLANClientState *vc, const uint8_t *buf,
  114:                                int size, NetPacketSent *sent_cb);
  115: void qemu_purge_queued_packets(VLANClientState *vc);
  116: void qemu_flush_queued_packets(VLANClientState *vc);
  117: void qemu_format_nic_info_str(VLANClientState *vc, uint8_t macaddr[6]);
  118: void qemu_macaddr_default_if_unset(MACAddr *macaddr);
  119: int qemu_show_nic_models(const char *arg, const char *const *models);
  120: void qemu_check_nic_model(NICInfo *nd, const char *model);
  121: int qemu_find_nic_model(NICInfo *nd, const char * const *models,
  122:                         const char *default_model);
  123: 
  124: void do_info_network(Monitor *mon);
  125: int do_set_link(Monitor *mon, const QDict *qdict, QObject **ret_data);
  126: 
  127: /* NIC info */
  128: 
  129: #define MAX_NICS 8
  130: 
  131: struct NICInfo {
  132:     MACAddr macaddr;
  133:     char *model;
  134:     char *name;
  135:     char *devaddr;
  136:     VLANState *vlan;
  137:     VLANClientState *netdev;
  138:     int used;         /* is this slot in nd_table[] being used? */
  139:     int instantiated; /* does this NICInfo correspond to an instantiated NIC? */
  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: int net_client_parse(QemuOptsList *opts_list, const char *str);
  167: int net_init_clients(void);
  168: void net_check_clients(void);
  169: void net_cleanup(void);
  170: void net_host_device_add(Monitor *mon, const QDict *qdict);
  171: void net_host_device_remove(Monitor *mon, const QDict *qdict);
  172: int do_netdev_add(Monitor *mon, const QDict *qdict, QObject **ret_data);
  173: int do_netdev_del(Monitor *mon, const QDict *qdict, QObject **ret_data);
  174: 
  175: #define DEFAULT_NETWORK_SCRIPT "/etc/qemu-ifup"
  176: #define DEFAULT_NETWORK_DOWN_SCRIPT "/etc/qemu-ifdown"
  177: 
  178: void qdev_set_nic_properties(DeviceState *dev, NICInfo *nd);
  179: 
  180: int net_handle_fd_param(Monitor *mon, const char *param);
  181: 
  182: #endif

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