1 #ifndef QEMU_NET_H 2 #define QEMU_NET_H 3 4 #include "qemu/queue.h" 5 #include "qemu-common.h" 6 #include "qapi/qmp/qdict.h" 7 #include "qemu/option.h" 8 #include "net/queue.h" 9 #include "migration/vmstate.h" 10 #include "qapi-types.h" 11 12 struct MACAddr { 13 uint8_t a[6]; 14 }; 15 16 /* qdev nic properties */ 17 18 typedef struct NICConf { 19 MACAddr macaddr; 20 NetClientState *peer; 21 int32_t bootindex; 22 } NICConf; 23 24 #define DEFINE_NIC_PROPERTIES(_state, _conf) \ 25 DEFINE_PROP_MACADDR("mac", _state, _conf.macaddr), \ 26 DEFINE_PROP_VLAN("vlan", _state, _conf.peer), \ 27 DEFINE_PROP_NETDEV("netdev", _state, _conf.peer), \ 28 DEFINE_PROP_INT32("bootindex", _state, _conf.bootindex, -1) 29 30 /* Net clients */ 31 32 typedef void (NetPoll)(NetClientState *, bool enable); 33 typedef int (NetCanReceive)(NetClientState *); 34 typedef ssize_t (NetReceive)(NetClientState *, const uint8_t *, size_t); 35 typedef ssize_t (NetReceiveIOV)(NetClientState *, const struct iovec *, int); 36 typedef void (NetCleanup) (NetClientState *); 37 typedef void (LinkStatusChanged)(NetClientState *); 38 39 typedef struct NetClientInfo { 40 NetClientOptionsKind type; 41 size_t size; 42 NetReceive *receive; 43 NetReceive *receive_raw; 44 NetReceiveIOV *receive_iov; 45 NetCanReceive *can_receive; 46 NetCleanup *cleanup; 47 LinkStatusChanged *link_status_changed; 48 NetPoll *poll; 49 } NetClientInfo; 50 51 struct NetClientState { 52 NetClientInfo *info; 53 int link_down; 54 QTAILQ_ENTRY(NetClientState) next; 55 NetClientState *peer; 56 NetQueue *send_queue; 57 char *model; 58 char *name; 59 char info_str[256]; 60 unsigned receive_disabled : 1; 61 }; 62 63 typedef struct NICState { 64 NetClientState nc; 65 NICConf *conf; 66 void *opaque; 67 bool peer_deleted; 68 } NICState; 69 70 NetClientState *qemu_find_netdev(const char *id); 71 NetClientState *qemu_new_net_client(NetClientInfo *info, 72 NetClientState *peer, 73 const char *model, 74 const char *name); 75 NICState *qemu_new_nic(NetClientInfo *info, 76 NICConf *conf, 77 const char *model, 78 const char *name, 79 void *opaque); 80 void qemu_del_net_client(NetClientState *nc); 81 NetClientState *qemu_find_vlan_client_by_name(Monitor *mon, int vlan_id, 82 const char *client_str); 83 typedef void (*qemu_nic_foreach)(NICState *nic, void *opaque); 84 void qemu_foreach_nic(qemu_nic_foreach func, void *opaque); 85 int qemu_can_send_packet(NetClientState *nc); 86 ssize_t qemu_sendv_packet(NetClientState *nc, const struct iovec *iov, 87 int iovcnt); 88 ssize_t qemu_sendv_packet_async(NetClientState *nc, const struct iovec *iov, 89 int iovcnt, NetPacketSent *sent_cb); 90 void qemu_send_packet(NetClientState *nc, const uint8_t *buf, int size); 91 ssize_t qemu_send_packet_raw(NetClientState *nc, const uint8_t *buf, int size); 92 ssize_t qemu_send_packet_async(NetClientState *nc, const uint8_t *buf, 93 int size, NetPacketSent *sent_cb); 94 void qemu_purge_queued_packets(NetClientState *nc); 95 void qemu_flush_queued_packets(NetClientState *nc); 96 void qemu_format_nic_info_str(NetClientState *nc, uint8_t macaddr[6]); 97 void qemu_macaddr_default_if_unset(MACAddr *macaddr); 98 int qemu_show_nic_models(const char *arg, const char *const *models); 99 void qemu_check_nic_model(NICInfo *nd, const char *model); 100 int qemu_find_nic_model(NICInfo *nd, const char * const *models, 101 const char *default_model); 102 103 ssize_t qemu_deliver_packet(NetClientState *sender, 104 unsigned flags, 105 const uint8_t *data, 106 size_t size, 107 void *opaque); 108 ssize_t qemu_deliver_packet_iov(NetClientState *sender, 109 unsigned flags, 110 const struct iovec *iov, 111 int iovcnt, 112 void *opaque); 113 114 void print_net_client(Monitor *mon, NetClientState *nc); 115 void do_info_network(Monitor *mon, const QDict *qdict); 116 117 /* NIC info */ 118 119 #define MAX_NICS 8 120 121 struct NICInfo { 122 MACAddr macaddr; 123 char *model; 124 char *name; 125 char *devaddr; 126 NetClientState *netdev; 127 int used; /* is this slot in nd_table[] being used? */ 128 int instantiated; /* does this NICInfo correspond to an instantiated NIC? */ 129 int nvectors; 130 }; 131 132 extern int nb_nics; 133 extern NICInfo nd_table[MAX_NICS]; 134 extern int default_net; 135 136 /* from net.c */ 137 extern const char *legacy_tftp_prefix; 138 extern const char *legacy_bootp_filename; 139 140 int net_client_init(QemuOpts *opts, int is_netdev, Error **errp); 141 int net_client_parse(QemuOptsList *opts_list, const char *str); 142 int net_init_clients(void); 143 void net_check_clients(void); 144 void net_cleanup(void); 145 void net_host_device_add(Monitor *mon, const QDict *qdict); 146 void net_host_device_remove(Monitor *mon, const QDict *qdict); 147 void netdev_add(QemuOpts *opts, Error **errp); 148 int qmp_netdev_add(Monitor *mon, const QDict *qdict, QObject **ret); 149 150 int net_hub_id_for_client(NetClientState *nc, int *id); 151 NetClientState *net_hub_port_find(int hub_id); 152 153 #define DEFAULT_NETWORK_SCRIPT "/etc/qemu-ifup" 154 #define DEFAULT_NETWORK_DOWN_SCRIPT "/etc/qemu-ifdown" 155 #define DEFAULT_BRIDGE_HELPER CONFIG_QEMU_HELPERDIR "/qemu-bridge-helper" 156 #define DEFAULT_BRIDGE_INTERFACE "br0" 157 158 void qdev_set_nic_properties(DeviceState *dev, NICInfo *nd); 159 160 #define POLYNOMIAL 0x04c11db6 161 unsigned compute_mcast_idx(const uint8_t *ep); 162 163 #define vmstate_offset_macaddr(_state, _field) \ 164 vmstate_offset_array(_state, _field.a, uint8_t, \ 165 sizeof(typeof_field(_state, _field))) 166 167 #define VMSTATE_MACADDR(_field, _state) { \ 168 .name = (stringify(_field)), \ 169 .size = sizeof(MACAddr), \ 170 .info = &vmstate_info_buffer, \ 171 .flags = VMS_BUFFER, \ 172 .offset = vmstate_offset_macaddr(_state, _field), \ 173 } 174 175 #endif 176