Archipelago » qemu

#ifndef QEMU_NET_H

#define QEMU_NET_H

#include "qemu/queue.h"

#include "qemu-common.h"

#include "qapi/qmp/qdict.h"

#include "qemu/option.h"

#include "net/queue.h"

#include "migration/vmstate.h"

#include "qapi-types.h"

#define MAX_QUEUE_NUM 1024

/* Maximum GSO packet size (64k) plus plenty of room for

 * the ethernet and virtio_net headers

 */

#define NET_BUFSIZE (4096 + 65536)

struct MACAddr {

    uint8_t a[6];

};

/* qdev nic properties */

typedef struct NICPeers {

    NetClientState *ncs[MAX_QUEUE_NUM];

} NICPeers;

typedef struct NICConf {

    MACAddr macaddr;

    NICPeers peers;

    int32_t bootindex;

    int32_t queues;

} NICConf;

#define DEFINE_NIC_PROPERTIES(_state, _conf)                            \

    DEFINE_PROP_MACADDR("mac",   _state, _conf.macaddr),                \

    DEFINE_PROP_VLAN("vlan",     _state, _conf.peers),                   \

    DEFINE_PROP_NETDEV("netdev", _state, _conf.peers),                   \

    DEFINE_PROP_INT32("bootindex", _state, _conf.bootindex, -1)

/* Net clients */

typedef void (NetPoll)(NetClientState *, bool enable);

typedef int (NetCanReceive)(NetClientState *);

typedef ssize_t (NetReceive)(NetClientState *, const uint8_t *, size_t);

typedef ssize_t (NetReceiveIOV)(NetClientState *, const struct iovec *, int);

typedef void (NetCleanup) (NetClientState *);

typedef void (LinkStatusChanged)(NetClientState *);

typedef void (NetClientDestructor)(NetClientState *);

typedef RxFilterInfo *(QueryRxFilter)(NetClientState *);

typedef struct NetClientInfo {

    NetClientOptionsKind type;

    size_t size;

    NetReceive *receive;

    NetReceive *receive_raw;

    NetReceiveIOV *receive_iov;

    NetCanReceive *can_receive;

    NetCleanup *cleanup;

    LinkStatusChanged *link_status_changed;

    QueryRxFilter *query_rx_filter;

    NetPoll *poll;

} NetClientInfo;

struct NetClientState {

    NetClientInfo *info;

    int link_down;

    QTAILQ_ENTRY(NetClientState) next;

    NetClientState *peer;

    NetQueue *incoming_queue;

    char *model;

    char *name;

    char info_str[256];

    unsigned receive_disabled : 1;

    NetClientDestructor *destructor;

    unsigned int queue_index;

    unsigned rxfilter_notify_enabled:1;

};

typedef struct NICState {

    NetClientState *ncs;

    NICConf *conf;

    void *opaque;

    bool peer_deleted;

} NICState;

NetClientState *qemu_find_netdev(const char *id);

int qemu_find_net_clients_except(const char *id, NetClientState **ncs,

                                 NetClientOptionsKind type, int max);

NetClientState *qemu_new_net_client(NetClientInfo *info,

                                    NetClientState *peer,

                                    const char *model,

                                    const char *name);

NICState *qemu_new_nic(NetClientInfo *info,

                       NICConf *conf,

                       const char *model,

                       const char *name,

                       void *opaque);

void qemu_del_nic(NICState *nic);

NetClientState *qemu_get_subqueue(NICState *nic, int queue_index);

NetClientState *qemu_get_queue(NICState *nic);

NICState *qemu_get_nic(NetClientState *nc);

void *qemu_get_nic_opaque(NetClientState *nc);

void qemu_del_net_client(NetClientState *nc);

NetClientState *qemu_find_vlan_client_by_name(Monitor *mon, int vlan_id,

                                              const char *client_str);

typedef void (*qemu_nic_foreach)(NICState *nic, void *opaque);

void qemu_foreach_nic(qemu_nic_foreach func, void *opaque);

int qemu_can_send_packet(NetClientState *nc);

ssize_t qemu_sendv_packet(NetClientState *nc, const struct iovec *iov,

                          int iovcnt);

ssize_t qemu_sendv_packet_async(NetClientState *nc, const struct iovec *iov,

                                int iovcnt, NetPacketSent *sent_cb);

void qemu_send_packet(NetClientState *nc, const uint8_t *buf, int size);

ssize_t qemu_send_packet_raw(NetClientState *nc, const uint8_t *buf, int size);

ssize_t qemu_send_packet_async(NetClientState *nc, const uint8_t *buf,

                               int size, NetPacketSent *sent_cb);

void qemu_purge_queued_packets(NetClientState *nc);

void qemu_flush_queued_packets(NetClientState *nc);

void qemu_format_nic_info_str(NetClientState *nc, uint8_t macaddr[6]);

void qemu_macaddr_default_if_unset(MACAddr *macaddr);

int qemu_show_nic_models(const char *arg, const char *const *models);

void qemu_check_nic_model(NICInfo *nd, const char *model);

int qemu_find_nic_model(NICInfo *nd, const char * const *models,

                        const char *default_model);

ssize_t qemu_deliver_packet(NetClientState *sender,

                            unsigned flags,

                            const uint8_t *data,

                            size_t size,

                            void *opaque);

ssize_t qemu_deliver_packet_iov(NetClientState *sender,

                            unsigned flags,

                            const struct iovec *iov,

                            int iovcnt,

                            void *opaque);

void print_net_client(Monitor *mon, NetClientState *nc);

void do_info_network(Monitor *mon, const QDict *qdict);

/* NIC info */

#define MAX_NICS 8

struct NICInfo {

    MACAddr macaddr;

    char *model;

    char *name;

    char *devaddr;

    NetClientState *netdev;

    int used;         /* is this slot in nd_table[] being used? */

    int instantiated; /* does this NICInfo correspond to an instantiated NIC? */

    int nvectors;

};

extern int nb_nics;

extern NICInfo nd_table[MAX_NICS];

extern int default_net;

/* from net.c */

extern const char *legacy_tftp_prefix;

extern const char *legacy_bootp_filename;

int net_client_init(QemuOpts *opts, int is_netdev, Error **errp);

int net_client_parse(QemuOptsList *opts_list, const char *str);

int net_init_clients(void);

void net_check_clients(void);

void net_cleanup(void);

void net_host_device_add(Monitor *mon, const QDict *qdict);

void net_host_device_remove(Monitor *mon, const QDict *qdict);

void netdev_add(QemuOpts *opts, Error **errp);

int qmp_netdev_add(Monitor *mon, const QDict *qdict, QObject **ret);

int net_hub_id_for_client(NetClientState *nc, int *id);

NetClientState *net_hub_port_find(int hub_id);

#define DEFAULT_NETWORK_SCRIPT "/etc/qemu-ifup"

#define DEFAULT_NETWORK_DOWN_SCRIPT "/etc/qemu-ifdown"

#define DEFAULT_BRIDGE_HELPER CONFIG_QEMU_HELPERDIR "/qemu-bridge-helper"

#define DEFAULT_BRIDGE_INTERFACE "br0"

void qdev_set_nic_properties(DeviceState *dev, NICInfo *nd);

#define POLYNOMIAL 0x04c11db6

unsigned compute_mcast_idx(const uint8_t *ep);

#define vmstate_offset_macaddr(_state, _field)                       \

    vmstate_offset_array(_state, _field.a, uint8_t,                \

                         sizeof(typeof_field(_state, _field)))

#define VMSTATE_MACADDR(_field, _state) {                            \

    .name       = (stringify(_field)),                               \

    .size       = sizeof(MACAddr),                                   \

    .info       = &vmstate_info_buffer,                              \

    .flags      = VMS_BUFFER,                                        \

    .offset     = vmstate_offset_macaddr(_state, _field),            \

}

#endif