240 lines
		
	
	
		
			8.5 KiB
		
	
	
	
		
			C
		
	
	
	
			
		
		
	
	
			240 lines
		
	
	
		
			8.5 KiB
		
	
	
	
		
			C
		
	
	
	
| #ifndef QEMU_NET_H
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| #define QEMU_NET_H
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| 
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| #include "qemu/queue.h"
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| #include "qemu-common.h"
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| #include "qapi/qmp/qdict.h"
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| #include "qemu/option.h"
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| #include "net/queue.h"
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| #include "migration/vmstate.h"
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| #include "qapi-types.h"
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| 
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| #define MAC_FMT "%02X:%02X:%02X:%02X:%02X:%02X"
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| #define MAC_ARG(x) ((uint8_t *)(x))[0], ((uint8_t *)(x))[1], \
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|                    ((uint8_t *)(x))[2], ((uint8_t *)(x))[3], \
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|                    ((uint8_t *)(x))[4], ((uint8_t *)(x))[5]
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| 
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| #define MAX_QUEUE_NUM 1024
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| 
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| /* Maximum GSO packet size (64k) plus plenty of room for
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|  * the ethernet and virtio_net headers
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|  */
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| #define NET_BUFSIZE (4096 + 65536)
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| 
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| struct MACAddr {
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|     uint8_t a[6];
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| };
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| 
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| /* qdev nic properties */
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| 
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| typedef struct NICPeers {
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|     NetClientState *ncs[MAX_QUEUE_NUM];
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|     int32_t queues;
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| } NICPeers;
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| 
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| typedef struct NICConf {
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|     MACAddr macaddr;
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|     NICPeers peers;
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|     int32_t bootindex;
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| } NICConf;
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| 
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| #define DEFINE_NIC_PROPERTIES(_state, _conf)                            \
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|     DEFINE_PROP_MACADDR("mac",   _state, _conf.macaddr),                \
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|     DEFINE_PROP_VLAN("vlan",     _state, _conf.peers),                   \
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|     DEFINE_PROP_NETDEV("netdev", _state, _conf.peers)
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| 
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| 
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| /* Net clients */
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| 
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| typedef void (NetPoll)(NetClientState *, bool enable);
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| typedef int (NetCanReceive)(NetClientState *);
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| typedef ssize_t (NetReceive)(NetClientState *, const uint8_t *, size_t);
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| typedef ssize_t (NetReceiveIOV)(NetClientState *, const struct iovec *, int);
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| typedef void (NetCleanup) (NetClientState *);
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| typedef void (LinkStatusChanged)(NetClientState *);
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| typedef void (NetClientDestructor)(NetClientState *);
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| typedef RxFilterInfo *(QueryRxFilter)(NetClientState *);
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| typedef bool (HasUfo)(NetClientState *);
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| typedef bool (HasVnetHdr)(NetClientState *);
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| typedef bool (HasVnetHdrLen)(NetClientState *, int);
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| typedef void (UsingVnetHdr)(NetClientState *, bool);
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| typedef void (SetOffload)(NetClientState *, int, int, int, int, int);
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| typedef void (SetVnetHdrLen)(NetClientState *, int);
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| typedef int (SetVnetLE)(NetClientState *, bool);
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| typedef int (SetVnetBE)(NetClientState *, bool);
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| typedef struct SocketReadState SocketReadState;
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| typedef void (SocketReadStateFinalize)(SocketReadState *rs);
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| 
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| typedef struct NetClientInfo {
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|     NetClientDriver type;
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|     size_t size;
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|     NetReceive *receive;
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|     NetReceive *receive_raw;
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|     NetReceiveIOV *receive_iov;
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|     NetCanReceive *can_receive;
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|     NetCleanup *cleanup;
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|     LinkStatusChanged *link_status_changed;
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|     QueryRxFilter *query_rx_filter;
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|     NetPoll *poll;
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|     HasUfo *has_ufo;
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|     HasVnetHdr *has_vnet_hdr;
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|     HasVnetHdrLen *has_vnet_hdr_len;
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|     UsingVnetHdr *using_vnet_hdr;
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|     SetOffload *set_offload;
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|     SetVnetHdrLen *set_vnet_hdr_len;
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|     SetVnetLE *set_vnet_le;
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|     SetVnetBE *set_vnet_be;
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| } NetClientInfo;
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| 
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| struct NetClientState {
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|     NetClientInfo *info;
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|     int link_down;
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|     QTAILQ_ENTRY(NetClientState) next;
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|     NetClientState *peer;
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|     NetQueue *incoming_queue;
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|     char *model;
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|     char *name;
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|     char info_str[256];
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|     unsigned receive_disabled : 1;
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|     NetClientDestructor *destructor;
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|     unsigned int queue_index;
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|     unsigned rxfilter_notify_enabled:1;
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|     int vring_enable;
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|     QTAILQ_HEAD(NetFilterHead, NetFilterState) filters;
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| };
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| 
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| typedef struct NICState {
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|     NetClientState *ncs;
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|     NICConf *conf;
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|     void *opaque;
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|     bool peer_deleted;
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| } NICState;
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| 
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| struct SocketReadState {
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|     int state; /* 0 = getting length, 1 = getting data */
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|     uint32_t index;
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|     uint32_t packet_len;
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|     uint8_t buf[NET_BUFSIZE];
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|     SocketReadStateFinalize *finalize;
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| };
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| 
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| int net_fill_rstate(SocketReadState *rs, const uint8_t *buf, int size);
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| char *qemu_mac_strdup_printf(const uint8_t *macaddr);
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| NetClientState *qemu_find_netdev(const char *id);
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| int qemu_find_net_clients_except(const char *id, NetClientState **ncs,
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|                                  NetClientDriver type, int max);
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| NetClientState *qemu_new_net_client(NetClientInfo *info,
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|                                     NetClientState *peer,
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|                                     const char *model,
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|                                     const char *name);
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| NICState *qemu_new_nic(NetClientInfo *info,
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|                        NICConf *conf,
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|                        const char *model,
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|                        const char *name,
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|                        void *opaque);
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| void qemu_del_nic(NICState *nic);
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| NetClientState *qemu_get_subqueue(NICState *nic, int queue_index);
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| NetClientState *qemu_get_queue(NICState *nic);
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| NICState *qemu_get_nic(NetClientState *nc);
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| void *qemu_get_nic_opaque(NetClientState *nc);
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| void qemu_del_net_client(NetClientState *nc);
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| typedef void (*qemu_nic_foreach)(NICState *nic, void *opaque);
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| void qemu_foreach_nic(qemu_nic_foreach func, void *opaque);
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| int qemu_can_send_packet(NetClientState *nc);
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| ssize_t qemu_sendv_packet(NetClientState *nc, const struct iovec *iov,
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|                           int iovcnt);
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| ssize_t qemu_sendv_packet_async(NetClientState *nc, const struct iovec *iov,
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|                                 int iovcnt, NetPacketSent *sent_cb);
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| void qemu_send_packet(NetClientState *nc, const uint8_t *buf, int size);
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| ssize_t qemu_send_packet_raw(NetClientState *nc, const uint8_t *buf, int size);
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| ssize_t qemu_send_packet_async(NetClientState *nc, const uint8_t *buf,
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|                                int size, NetPacketSent *sent_cb);
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| void qemu_purge_queued_packets(NetClientState *nc);
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| void qemu_flush_queued_packets(NetClientState *nc);
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| void qemu_format_nic_info_str(NetClientState *nc, uint8_t macaddr[6]);
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| bool qemu_has_ufo(NetClientState *nc);
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| bool qemu_has_vnet_hdr(NetClientState *nc);
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| bool qemu_has_vnet_hdr_len(NetClientState *nc, int len);
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| void qemu_using_vnet_hdr(NetClientState *nc, bool enable);
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| void qemu_set_offload(NetClientState *nc, int csum, int tso4, int tso6,
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|                       int ecn, int ufo);
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| void qemu_set_vnet_hdr_len(NetClientState *nc, int len);
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| int qemu_set_vnet_le(NetClientState *nc, bool is_le);
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| int qemu_set_vnet_be(NetClientState *nc, bool is_be);
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| void qemu_macaddr_default_if_unset(MACAddr *macaddr);
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| int qemu_show_nic_models(const char *arg, const char *const *models);
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| void qemu_check_nic_model(NICInfo *nd, const char *model);
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| int qemu_find_nic_model(NICInfo *nd, const char * const *models,
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|                         const char *default_model);
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| 
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| ssize_t qemu_deliver_packet_iov(NetClientState *sender,
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|                             unsigned flags,
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|                             const struct iovec *iov,
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|                             int iovcnt,
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|                             void *opaque);
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| 
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| void print_net_client(Monitor *mon, NetClientState *nc);
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| void hmp_info_network(Monitor *mon, const QDict *qdict);
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| void net_socket_rs_init(SocketReadState *rs,
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|                         SocketReadStateFinalize *finalize);
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| 
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| /* NIC info */
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| 
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| #define MAX_NICS 8
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| 
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| struct NICInfo {
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|     MACAddr macaddr;
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|     char *model;
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|     char *name;
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|     char *devaddr;
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|     NetClientState *netdev;
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|     int used;         /* is this slot in nd_table[] being used? */
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|     int instantiated; /* does this NICInfo correspond to an instantiated NIC? */
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|     int nvectors;
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| };
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| 
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| extern int nb_nics;
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| extern NICInfo nd_table[MAX_NICS];
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| extern const char *host_net_devices[];
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| 
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| /* from net.c */
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| extern const char *legacy_tftp_prefix;
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| extern const char *legacy_bootp_filename;
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| 
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| int net_client_init(QemuOpts *opts, bool is_netdev, Error **errp);
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| int net_client_parse(QemuOptsList *opts_list, const char *str);
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| int net_init_clients(void);
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| void net_check_clients(void);
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| void net_cleanup(void);
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| void hmp_host_net_add(Monitor *mon, const QDict *qdict);
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| void hmp_host_net_remove(Monitor *mon, const QDict *qdict);
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| void netdev_add(QemuOpts *opts, Error **errp);
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| void qmp_netdev_add(QDict *qdict, QObject **ret, Error **errp);
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| 
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| int net_hub_id_for_client(NetClientState *nc, int *id);
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| NetClientState *net_hub_port_find(int hub_id);
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| 
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| #define DEFAULT_NETWORK_SCRIPT "/etc/qemu-ifup"
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| #define DEFAULT_NETWORK_DOWN_SCRIPT "/etc/qemu-ifdown"
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| #define DEFAULT_BRIDGE_HELPER CONFIG_QEMU_HELPERDIR "/qemu-bridge-helper"
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| #define DEFAULT_BRIDGE_INTERFACE "br0"
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| 
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| void qdev_set_nic_properties(DeviceState *dev, NICInfo *nd);
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| 
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| #define POLYNOMIAL 0x04c11db6
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| unsigned compute_mcast_idx(const uint8_t *ep);
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| 
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| #define vmstate_offset_macaddr(_state, _field)                       \
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|     vmstate_offset_array(_state, _field.a, uint8_t,                \
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|                          sizeof(typeof_field(_state, _field)))
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| 
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| #define VMSTATE_MACADDR(_field, _state) {                            \
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|     .name       = (stringify(_field)),                               \
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|     .size       = sizeof(MACAddr),                                   \
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|     .info       = &vmstate_info_buffer,                              \
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|     .flags      = VMS_BUFFER,                                        \
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|     .offset     = vmstate_offset_macaddr(_state, _field),            \
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| }
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| 
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| #endif
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