11422e32dSPaolo Bonzini #ifndef QEMU_NET_H 21422e32dSPaolo Bonzini #define QEMU_NET_H 31422e32dSPaolo Bonzini 41de7afc9SPaolo Bonzini #include "qemu/queue.h" 59af23989SMarkus Armbruster #include "qapi/qapi-types-net.h" 61422e32dSPaolo Bonzini #include "net/queue.h" 7ce35e229SEduardo Habkost #include "hw/qdev-properties-system.h" 81422e32dSPaolo Bonzini 96d1d4939SDmitry Fleytman #define MAC_FMT "%02X:%02X:%02X:%02X:%02X:%02X" 106d1d4939SDmitry Fleytman #define MAC_ARG(x) ((uint8_t *)(x))[0], ((uint8_t *)(x))[1], \ 116d1d4939SDmitry Fleytman ((uint8_t *)(x))[2], ((uint8_t *)(x))[3], \ 126d1d4939SDmitry Fleytman ((uint8_t *)(x))[4], ((uint8_t *)(x))[5] 136d1d4939SDmitry Fleytman 141ceef9f2SJason Wang #define MAX_QUEUE_NUM 1024 151ceef9f2SJason Wang 16d32fcad3SScott Feldman /* Maximum GSO packet size (64k) plus plenty of room for 17d32fcad3SScott Feldman * the ethernet and virtio_net headers 18d32fcad3SScott Feldman */ 19d32fcad3SScott Feldman #define NET_BUFSIZE (4096 + 65536) 20d32fcad3SScott Feldman 211422e32dSPaolo Bonzini struct MACAddr { 221422e32dSPaolo Bonzini uint8_t a[6]; 231422e32dSPaolo Bonzini }; 241422e32dSPaolo Bonzini 251422e32dSPaolo Bonzini /* qdev nic properties */ 261422e32dSPaolo Bonzini 271ceef9f2SJason Wang typedef struct NICPeers { 281ceef9f2SJason Wang NetClientState *ncs[MAX_QUEUE_NUM]; 29575a1c0eSJiri Pirko int32_t queues; 301ceef9f2SJason Wang } NICPeers; 311ceef9f2SJason Wang 321422e32dSPaolo Bonzini typedef struct NICConf { 331422e32dSPaolo Bonzini MACAddr macaddr; 341ceef9f2SJason Wang NICPeers peers; 351422e32dSPaolo Bonzini int32_t bootindex; 361422e32dSPaolo Bonzini } NICConf; 371422e32dSPaolo Bonzini 381422e32dSPaolo Bonzini #define DEFINE_NIC_PROPERTIES(_state, _conf) \ 391422e32dSPaolo Bonzini DEFINE_PROP_MACADDR("mac", _state, _conf.macaddr), \ 4045e8a9e1SGonglei DEFINE_PROP_NETDEV("netdev", _state, _conf.peers) 411422e32dSPaolo Bonzini 421ceef9f2SJason Wang 431422e32dSPaolo Bonzini /* Net clients */ 441422e32dSPaolo Bonzini 451422e32dSPaolo Bonzini typedef void (NetPoll)(NetClientState *, bool enable); 46b8c4b67eSPhilippe Mathieu-Daudé typedef bool (NetCanReceive)(NetClientState *); 471422e32dSPaolo Bonzini typedef ssize_t (NetReceive)(NetClientState *, const uint8_t *, size_t); 481422e32dSPaolo Bonzini typedef ssize_t (NetReceiveIOV)(NetClientState *, const struct iovec *, int); 491422e32dSPaolo Bonzini typedef void (NetCleanup) (NetClientState *); 501422e32dSPaolo Bonzini typedef void (LinkStatusChanged)(NetClientState *); 51f7860455SJason Wang typedef void (NetClientDestructor)(NetClientState *); 52b1be4280SAmos Kong typedef RxFilterInfo *(QueryRxFilter)(NetClientState *); 531f55ac45SVincenzo Maffione typedef bool (HasUfo)(NetClientState *); 541f55ac45SVincenzo Maffione typedef bool (HasVnetHdr)(NetClientState *); 551f55ac45SVincenzo Maffione typedef bool (HasVnetHdrLen)(NetClientState *, int); 561f55ac45SVincenzo Maffione typedef void (UsingVnetHdr)(NetClientState *, bool); 571f55ac45SVincenzo Maffione typedef void (SetOffload)(NetClientState *, int, int, int, int, int); 581f55ac45SVincenzo Maffione typedef void (SetVnetHdrLen)(NetClientState *, int); 59c80cd6bbSGreg Kurz typedef int (SetVnetLE)(NetClientState *, bool); 60c80cd6bbSGreg Kurz typedef int (SetVnetBE)(NetClientState *, bool); 6116a3df40SZhang Chen typedef struct SocketReadState SocketReadState; 6216a3df40SZhang Chen typedef void (SocketReadStateFinalize)(SocketReadState *rs); 6344b416adSDr. David Alan Gilbert typedef void (NetAnnounce)(NetClientState *); 64*8f364e34SAndrew Melnychenko typedef bool (SetSteeringEBPF)(NetClientState *, int); 651422e32dSPaolo Bonzini 661422e32dSPaolo Bonzini typedef struct NetClientInfo { 67f394b2e2SEric Blake NetClientDriver type; 681422e32dSPaolo Bonzini size_t size; 691422e32dSPaolo Bonzini NetReceive *receive; 701422e32dSPaolo Bonzini NetReceive *receive_raw; 711422e32dSPaolo Bonzini NetReceiveIOV *receive_iov; 721422e32dSPaolo Bonzini NetCanReceive *can_receive; 731422e32dSPaolo Bonzini NetCleanup *cleanup; 741422e32dSPaolo Bonzini LinkStatusChanged *link_status_changed; 75b1be4280SAmos Kong QueryRxFilter *query_rx_filter; 761422e32dSPaolo Bonzini NetPoll *poll; 771f55ac45SVincenzo Maffione HasUfo *has_ufo; 781f55ac45SVincenzo Maffione HasVnetHdr *has_vnet_hdr; 791f55ac45SVincenzo Maffione HasVnetHdrLen *has_vnet_hdr_len; 801f55ac45SVincenzo Maffione UsingVnetHdr *using_vnet_hdr; 811f55ac45SVincenzo Maffione SetOffload *set_offload; 821f55ac45SVincenzo Maffione SetVnetHdrLen *set_vnet_hdr_len; 83c80cd6bbSGreg Kurz SetVnetLE *set_vnet_le; 84c80cd6bbSGreg Kurz SetVnetBE *set_vnet_be; 8544b416adSDr. David Alan Gilbert NetAnnounce *announce; 86*8f364e34SAndrew Melnychenko SetSteeringEBPF *set_steering_ebpf; 871422e32dSPaolo Bonzini } NetClientInfo; 881422e32dSPaolo Bonzini 891422e32dSPaolo Bonzini struct NetClientState { 901422e32dSPaolo Bonzini NetClientInfo *info; 911422e32dSPaolo Bonzini int link_down; 921422e32dSPaolo Bonzini QTAILQ_ENTRY(NetClientState) next; 931422e32dSPaolo Bonzini NetClientState *peer; 94067404beSJan Kiszka NetQueue *incoming_queue; 951422e32dSPaolo Bonzini char *model; 961422e32dSPaolo Bonzini char *name; 9756e6f594SJason Wang char info_str[256]; 981422e32dSPaolo Bonzini unsigned receive_disabled : 1; 99f7860455SJason Wang NetClientDestructor *destructor; 1001ceef9f2SJason Wang unsigned int queue_index; 101b1be4280SAmos Kong unsigned rxfilter_notify_enabled:1; 102bfc6cf31SMarc-André Lureau int vring_enable; 103d6b732e9SZhang Chen int vnet_hdr_len; 10408712fcbSEric Blake bool is_netdev; 105935344beSBin Meng bool do_not_pad; /* do not pad to the minimum ethernet frame length */ 106eae3eb3eSPaolo Bonzini QTAILQ_HEAD(, NetFilterState) filters; 1071422e32dSPaolo Bonzini }; 1081422e32dSPaolo Bonzini 1091422e32dSPaolo Bonzini typedef struct NICState { 110f6b26cf2SJason Wang NetClientState *ncs; 1111422e32dSPaolo Bonzini NICConf *conf; 1121422e32dSPaolo Bonzini void *opaque; 1131422e32dSPaolo Bonzini bool peer_deleted; 1141422e32dSPaolo Bonzini } NICState; 1151422e32dSPaolo Bonzini 11616a3df40SZhang Chen struct SocketReadState { 1173cde5ea2SZhang Chen /* 0 = getting length, 1 = getting vnet header length, 2 = getting data */ 1183cde5ea2SZhang Chen int state; 1193cde5ea2SZhang Chen /* This flag decide whether to read the vnet_hdr_len field */ 1203cde5ea2SZhang Chen bool vnet_hdr; 12116a3df40SZhang Chen uint32_t index; 12216a3df40SZhang Chen uint32_t packet_len; 1233cde5ea2SZhang Chen uint32_t vnet_hdr_len; 12416a3df40SZhang Chen uint8_t buf[NET_BUFSIZE]; 12516a3df40SZhang Chen SocketReadStateFinalize *finalize; 12616a3df40SZhang Chen }; 12716a3df40SZhang Chen 12816a3df40SZhang Chen int net_fill_rstate(SocketReadState *rs, const uint8_t *buf, int size); 129890ee6abSScott Feldman char *qemu_mac_strdup_printf(const uint8_t *macaddr); 1301422e32dSPaolo Bonzini NetClientState *qemu_find_netdev(const char *id); 1316c51ae73SJason Wang int qemu_find_net_clients_except(const char *id, NetClientState **ncs, 132f394b2e2SEric Blake NetClientDriver type, int max); 1331422e32dSPaolo Bonzini NetClientState *qemu_new_net_client(NetClientInfo *info, 1341422e32dSPaolo Bonzini NetClientState *peer, 1351422e32dSPaolo Bonzini const char *model, 1361422e32dSPaolo Bonzini const char *name); 1371422e32dSPaolo Bonzini NICState *qemu_new_nic(NetClientInfo *info, 1381422e32dSPaolo Bonzini NICConf *conf, 1391422e32dSPaolo Bonzini const char *model, 1401422e32dSPaolo Bonzini const char *name, 1411422e32dSPaolo Bonzini void *opaque); 142948ecf21SJason Wang void qemu_del_nic(NICState *nic); 1431ceef9f2SJason Wang NetClientState *qemu_get_subqueue(NICState *nic, int queue_index); 144b356f76dSJason Wang NetClientState *qemu_get_queue(NICState *nic); 145cc1f0f45SJason Wang NICState *qemu_get_nic(NetClientState *nc); 146cc1f0f45SJason Wang void *qemu_get_nic_opaque(NetClientState *nc); 1471422e32dSPaolo Bonzini void qemu_del_net_client(NetClientState *nc); 1481422e32dSPaolo Bonzini typedef void (*qemu_nic_foreach)(NICState *nic, void *opaque); 1491422e32dSPaolo Bonzini void qemu_foreach_nic(qemu_nic_foreach func, void *opaque); 150705df546SJason Wang int qemu_can_receive_packet(NetClientState *nc); 1511422e32dSPaolo Bonzini int qemu_can_send_packet(NetClientState *nc); 1521422e32dSPaolo Bonzini ssize_t qemu_sendv_packet(NetClientState *nc, const struct iovec *iov, 1531422e32dSPaolo Bonzini int iovcnt); 1541422e32dSPaolo Bonzini ssize_t qemu_sendv_packet_async(NetClientState *nc, const struct iovec *iov, 1551422e32dSPaolo Bonzini int iovcnt, NetPacketSent *sent_cb); 156625a526bSMarc-André Lureau ssize_t qemu_send_packet(NetClientState *nc, const uint8_t *buf, int size); 157705df546SJason Wang ssize_t qemu_receive_packet(NetClientState *nc, const uint8_t *buf, int size); 158705df546SJason Wang ssize_t qemu_receive_packet_iov(NetClientState *nc, 159705df546SJason Wang const struct iovec *iov, 160705df546SJason Wang int iovcnt); 1611422e32dSPaolo Bonzini ssize_t qemu_send_packet_raw(NetClientState *nc, const uint8_t *buf, int size); 1621422e32dSPaolo Bonzini ssize_t qemu_send_packet_async(NetClientState *nc, const uint8_t *buf, 1631422e32dSPaolo Bonzini int size, NetPacketSent *sent_cb); 1641422e32dSPaolo Bonzini void qemu_purge_queued_packets(NetClientState *nc); 1651422e32dSPaolo Bonzini void qemu_flush_queued_packets(NetClientState *nc); 16694b52958SGreg Kurz void qemu_flush_or_purge_queued_packets(NetClientState *nc, bool purge); 1671422e32dSPaolo Bonzini void qemu_format_nic_info_str(NetClientState *nc, uint8_t macaddr[6]); 168d6085e3aSStefan Hajnoczi bool qemu_has_ufo(NetClientState *nc); 169d6085e3aSStefan Hajnoczi bool qemu_has_vnet_hdr(NetClientState *nc); 170d6085e3aSStefan Hajnoczi bool qemu_has_vnet_hdr_len(NetClientState *nc, int len); 171d6085e3aSStefan Hajnoczi void qemu_using_vnet_hdr(NetClientState *nc, bool enable); 172d6085e3aSStefan Hajnoczi void qemu_set_offload(NetClientState *nc, int csum, int tso4, int tso6, 1731f55ac45SVincenzo Maffione int ecn, int ufo); 174d6085e3aSStefan Hajnoczi void qemu_set_vnet_hdr_len(NetClientState *nc, int len); 175c80cd6bbSGreg Kurz int qemu_set_vnet_le(NetClientState *nc, bool is_le); 176c80cd6bbSGreg Kurz int qemu_set_vnet_be(NetClientState *nc, bool is_be); 1771422e32dSPaolo Bonzini void qemu_macaddr_default_if_unset(MACAddr *macaddr); 1781422e32dSPaolo Bonzini int qemu_show_nic_models(const char *arg, const char *const *models); 1791422e32dSPaolo Bonzini void qemu_check_nic_model(NICInfo *nd, const char *model); 1801422e32dSPaolo Bonzini int qemu_find_nic_model(NICInfo *nd, const char * const *models, 1811422e32dSPaolo Bonzini const char *default_model); 1821422e32dSPaolo Bonzini 1831422e32dSPaolo Bonzini void print_net_client(Monitor *mon, NetClientState *nc); 1841ce6be24SMarkus Armbruster void hmp_info_network(Monitor *mon, const QDict *qdict); 18516a3df40SZhang Chen void net_socket_rs_init(SocketReadState *rs, 1863cde5ea2SZhang Chen SocketReadStateFinalize *finalize, 1873cde5ea2SZhang Chen bool vnet_hdr); 1880165daaeSCindy Lu NetClientState *qemu_get_peer(NetClientState *nc, int queue_index); 1891422e32dSPaolo Bonzini 1901422e32dSPaolo Bonzini /* NIC info */ 1911422e32dSPaolo Bonzini 1921422e32dSPaolo Bonzini #define MAX_NICS 8 1931422e32dSPaolo Bonzini 1941422e32dSPaolo Bonzini struct NICInfo { 1951422e32dSPaolo Bonzini MACAddr macaddr; 1961422e32dSPaolo Bonzini char *model; 1971422e32dSPaolo Bonzini char *name; 1981422e32dSPaolo Bonzini char *devaddr; 1991422e32dSPaolo Bonzini NetClientState *netdev; 2001422e32dSPaolo Bonzini int used; /* is this slot in nd_table[] being used? */ 2011422e32dSPaolo Bonzini int instantiated; /* does this NICInfo correspond to an instantiated NIC? */ 2021422e32dSPaolo Bonzini int nvectors; 2031422e32dSPaolo Bonzini }; 2041422e32dSPaolo Bonzini 2051422e32dSPaolo Bonzini extern int nb_nics; 2061422e32dSPaolo Bonzini extern NICInfo nd_table[MAX_NICS]; 20784007e81SHani Benhabiles extern const char *host_net_devices[]; 2081422e32dSPaolo Bonzini 2091422e32dSPaolo Bonzini /* from net.c */ 2101422e32dSPaolo Bonzini int net_client_parse(QemuOptsList *opts_list, const char *str); 211ad6f932fSPaolo Bonzini void show_netdevs(void); 21234f708b0SThomas Huth int net_init_clients(Error **errp); 2131422e32dSPaolo Bonzini void net_check_clients(void); 2141422e32dSPaolo Bonzini void net_cleanup(void); 2153e5a50d6SMarkus Armbruster void hmp_host_net_add(Monitor *mon, const QDict *qdict); 2163e5a50d6SMarkus Armbruster void hmp_host_net_remove(Monitor *mon, const QDict *qdict); 2171422e32dSPaolo Bonzini void netdev_add(QemuOpts *opts, Error **errp); 2181422e32dSPaolo Bonzini 2191422e32dSPaolo Bonzini int net_hub_id_for_client(NetClientState *nc, int *id); 2201422e32dSPaolo Bonzini NetClientState *net_hub_port_find(int hub_id); 2211422e32dSPaolo Bonzini 22263c4db4cSPaolo Bonzini #define DEFAULT_NETWORK_SCRIPT CONFIG_SYSCONFDIR "/qemu-ifup" 22363c4db4cSPaolo Bonzini #define DEFAULT_NETWORK_DOWN_SCRIPT CONFIG_SYSCONFDIR "/qemu-ifdown" 2241422e32dSPaolo Bonzini #define DEFAULT_BRIDGE_HELPER CONFIG_QEMU_HELPERDIR "/qemu-bridge-helper" 2251422e32dSPaolo Bonzini #define DEFAULT_BRIDGE_INTERFACE "br0" 2261422e32dSPaolo Bonzini 2271422e32dSPaolo Bonzini void qdev_set_nic_properties(DeviceState *dev, NICInfo *nd); 2281422e32dSPaolo Bonzini 229eaba8f34SMark Cave-Ayland #define POLYNOMIAL_BE 0x04c11db6 230f1a7deb9SMark Cave-Ayland #define POLYNOMIAL_LE 0xedb88320 231eaba8f34SMark Cave-Ayland uint32_t net_crc32(const uint8_t *p, int len); 232f1a7deb9SMark Cave-Ayland uint32_t net_crc32_le(const uint8_t *p, int len); 2331422e32dSPaolo Bonzini 2341422e32dSPaolo Bonzini #define vmstate_offset_macaddr(_state, _field) \ 2351422e32dSPaolo Bonzini vmstate_offset_array(_state, _field.a, uint8_t, \ 2361422e32dSPaolo Bonzini sizeof(typeof_field(_state, _field))) 2371422e32dSPaolo Bonzini 2381422e32dSPaolo Bonzini #define VMSTATE_MACADDR(_field, _state) { \ 2391422e32dSPaolo Bonzini .name = (stringify(_field)), \ 2401422e32dSPaolo Bonzini .size = sizeof(MACAddr), \ 2411422e32dSPaolo Bonzini .info = &vmstate_info_buffer, \ 2421422e32dSPaolo Bonzini .flags = VMS_BUFFER, \ 2431422e32dSPaolo Bonzini .offset = vmstate_offset_macaddr(_state, _field), \ 2441422e32dSPaolo Bonzini } 2451422e32dSPaolo Bonzini 246bc38e31bSJason Wang static inline bool net_peer_needs_padding(NetClientState *nc) 247bc38e31bSJason Wang { 248bc38e31bSJason Wang return nc->peer && !nc->peer->do_not_pad; 249bc38e31bSJason Wang } 250bc38e31bSJason Wang 2511422e32dSPaolo Bonzini #endif 252