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 #define MAX_QUEUE_NUM 1024 13 14 struct MACAddr { 15 uint8_t a[6]; 16 }; 17 18 /* qdev nic properties */ 19 20 typedef struct NICPeers { 21 NetClientState *ncs[MAX_QUEUE_NUM]; 22 } NICPeers; 23 24 typedef struct NICConf { 25 MACAddr macaddr; 26 NICPeers peers; 27 int32_t bootindex; 28 int32_t queues; 29 } NICConf; 30 31 #define DEFINE_NIC_PROPERTIES(_state, _conf) \ 32 DEFINE_PROP_MACADDR("mac", _state, _conf.macaddr), \ 33 DEFINE_PROP_VLAN("vlan", _state, _conf.peers), \ 34 DEFINE_PROP_NETDEV("netdev", _state, _conf.peers), \ 35 DEFINE_PROP_INT32("bootindex", _state, _conf.bootindex, -1) 36 37 38 /* Net clients */ 39 40 typedef void (NetPoll)(NetClientState *, bool enable); 41 typedef int (NetCanReceive)(NetClientState *); 42 typedef ssize_t (NetReceive)(NetClientState *, const uint8_t *, size_t); 43 typedef ssize_t (NetReceiveIOV)(NetClientState *, const struct iovec *, int); 44 typedef void (NetCleanup) (NetClientState *); 45 typedef void (LinkStatusChanged)(NetClientState *); 46 typedef void (NetClientDestructor)(NetClientState *); 47 48 typedef struct NetClientInfo { 49 NetClientOptionsKind type; 50 size_t size; 51 NetReceive *receive; 52 NetReceive *receive_raw; 53 NetReceiveIOV *receive_iov; 54 NetCanReceive *can_receive; 55 NetCleanup *cleanup; 56 LinkStatusChanged *link_status_changed; 57 NetPoll *poll; 58 } NetClientInfo; 59 60 struct NetClientState { 61 NetClientInfo *info; 62 int link_down; 63 QTAILQ_ENTRY(NetClientState) next; 64 NetClientState *peer; 65 NetQueue *send_queue; 66 char *model; 67 char *name; 68 char info_str[256]; 69 unsigned receive_disabled : 1; 70 NetClientDestructor *destructor; 71 unsigned int queue_index; 72 }; 73 74 typedef struct NICState { 75 NetClientState *ncs; 76 NICConf *conf; 77 void *opaque; 78 bool peer_deleted; 79 } NICState; 80 81 NetClientState *qemu_find_netdev(const char *id); 82 int qemu_find_net_clients_except(const char *id, NetClientState **ncs, 83 NetClientOptionsKind type, int max); 84 NetClientState *qemu_new_net_client(NetClientInfo *info, 85 NetClientState *peer, 86 const char *model, 87 const char *name); 88 NICState *qemu_new_nic(NetClientInfo *info, 89 NICConf *conf, 90 const char *model, 91 const char *name, 92 void *opaque); 93 void qemu_del_nic(NICState *nic); 94 NetClientState *qemu_get_subqueue(NICState *nic, int queue_index); 95 NetClientState *qemu_get_queue(NICState *nic); 96 NICState *qemu_get_nic(NetClientState *nc); 97 void *qemu_get_nic_opaque(NetClientState *nc); 98 void qemu_del_net_client(NetClientState *nc); 99 NetClientState *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(NetClientState *nc); 104 ssize_t qemu_sendv_packet(NetClientState *nc, const struct iovec *iov, 105 int iovcnt); 106 ssize_t qemu_sendv_packet_async(NetClientState *nc, const struct iovec *iov, 107 int iovcnt, NetPacketSent *sent_cb); 108 void qemu_send_packet(NetClientState *nc, const uint8_t *buf, int size); 109 ssize_t qemu_send_packet_raw(NetClientState *nc, const uint8_t *buf, int size); 110 ssize_t qemu_send_packet_async(NetClientState *nc, const uint8_t *buf, 111 int size, NetPacketSent *sent_cb); 112 void qemu_purge_queued_packets(NetClientState *nc); 113 void qemu_flush_queued_packets(NetClientState *nc); 114 void qemu_format_nic_info_str(NetClientState *nc, 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 ssize_t qemu_deliver_packet(NetClientState *sender, 122 unsigned flags, 123 const uint8_t *data, 124 size_t size, 125 void *opaque); 126 ssize_t qemu_deliver_packet_iov(NetClientState *sender, 127 unsigned flags, 128 const struct iovec *iov, 129 int iovcnt, 130 void *opaque); 131 132 void print_net_client(Monitor *mon, NetClientState *nc); 133 void do_info_network(Monitor *mon, const QDict *qdict); 134 135 /* NIC info */ 136 137 #define MAX_NICS 8 138 139 struct NICInfo { 140 MACAddr macaddr; 141 char *model; 142 char *name; 143 char *devaddr; 144 NetClientState *netdev; 145 int used; /* is this slot in nd_table[] being used? */ 146 int instantiated; /* does this NICInfo correspond to an instantiated NIC? */ 147 int nvectors; 148 }; 149 150 extern int nb_nics; 151 extern NICInfo nd_table[MAX_NICS]; 152 extern int default_net; 153 154 /* from net.c */ 155 extern const char *legacy_tftp_prefix; 156 extern const char *legacy_bootp_filename; 157 158 int net_client_init(QemuOpts *opts, int is_netdev, Error **errp); 159 int net_client_parse(QemuOptsList *opts_list, const char *str); 160 int net_init_clients(void); 161 void net_check_clients(void); 162 void net_cleanup(void); 163 void net_host_device_add(Monitor *mon, const QDict *qdict); 164 void net_host_device_remove(Monitor *mon, const QDict *qdict); 165 void netdev_add(QemuOpts *opts, Error **errp); 166 int qmp_netdev_add(Monitor *mon, const QDict *qdict, QObject **ret); 167 168 int net_hub_id_for_client(NetClientState *nc, int *id); 169 NetClientState *net_hub_port_find(int hub_id); 170 171 #define DEFAULT_NETWORK_SCRIPT "/etc/qemu-ifup" 172 #define DEFAULT_NETWORK_DOWN_SCRIPT "/etc/qemu-ifdown" 173 #define DEFAULT_BRIDGE_HELPER CONFIG_QEMU_HELPERDIR "/qemu-bridge-helper" 174 #define DEFAULT_BRIDGE_INTERFACE "br0" 175 176 void qdev_set_nic_properties(DeviceState *dev, NICInfo *nd); 177 178 #define POLYNOMIAL 0x04c11db6 179 unsigned compute_mcast_idx(const uint8_t *ep); 180 181 #define vmstate_offset_macaddr(_state, _field) \ 182 vmstate_offset_array(_state, _field.a, uint8_t, \ 183 sizeof(typeof_field(_state, _field))) 184 185 #define VMSTATE_MACADDR(_field, _state) { \ 186 .name = (stringify(_field)), \ 187 .size = sizeof(MACAddr), \ 188 .info = &vmstate_info_buffer, \ 189 .flags = VMS_BUFFER, \ 190 .offset = vmstate_offset_macaddr(_state, _field), \ 191 } 192 193 #endif 194