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87ecb68b PB |
1 | #ifndef QEMU_NET_H |
2 | #define QEMU_NET_H | |
3 | ||
1de7afc9 | 4 | #include "qemu/queue.h" |
fbe78f4f | 5 | #include "qemu-common.h" |
7b1b5d19 | 6 | #include "qapi/qmp/qdict.h" |
1de7afc9 | 7 | #include "qemu/option.h" |
e1144d00 | 8 | #include "net/queue.h" |
caf71f86 | 9 | #include "migration/vmstate.h" |
2be64a68 | 10 | #include "qapi-types.h" |
fbe78f4f | 11 | |
6d1d4939 DF |
12 | #define MAC_FMT "%02X:%02X:%02X:%02X:%02X:%02X" |
13 | #define MAC_ARG(x) ((uint8_t *)(x))[0], ((uint8_t *)(x))[1], \ | |
14 | ((uint8_t *)(x))[2], ((uint8_t *)(x))[3], \ | |
15 | ((uint8_t *)(x))[4], ((uint8_t *)(x))[5] | |
16 | ||
1ceef9f2 JW |
17 | #define MAX_QUEUE_NUM 1024 |
18 | ||
d32fcad3 SF |
19 | /* Maximum GSO packet size (64k) plus plenty of room for |
20 | * the ethernet and virtio_net headers | |
21 | */ | |
22 | #define NET_BUFSIZE (4096 + 65536) | |
23 | ||
76d32cba GH |
24 | struct MACAddr { |
25 | uint8_t a[6]; | |
26 | }; | |
27 | ||
ed16ab5a GH |
28 | /* qdev nic properties */ |
29 | ||
1ceef9f2 JW |
30 | typedef struct NICPeers { |
31 | NetClientState *ncs[MAX_QUEUE_NUM]; | |
575a1c0e | 32 | int32_t queues; |
1ceef9f2 JW |
33 | } NICPeers; |
34 | ||
ed16ab5a GH |
35 | typedef struct NICConf { |
36 | MACAddr macaddr; | |
1ceef9f2 | 37 | NICPeers peers; |
1ca4d09a | 38 | int32_t bootindex; |
ed16ab5a GH |
39 | } NICConf; |
40 | ||
41 | #define DEFINE_NIC_PROPERTIES(_state, _conf) \ | |
42 | DEFINE_PROP_MACADDR("mac", _state, _conf.macaddr), \ | |
1ceef9f2 | 43 | DEFINE_PROP_VLAN("vlan", _state, _conf.peers), \ |
45e8a9e1 | 44 | DEFINE_PROP_NETDEV("netdev", _state, _conf.peers) |
ed16ab5a | 45 | |
1ceef9f2 | 46 | |
4e68f7a0 | 47 | /* Net clients */ |
87ecb68b | 48 | |
4e68f7a0 SH |
49 | typedef void (NetPoll)(NetClientState *, bool enable); |
50 | typedef int (NetCanReceive)(NetClientState *); | |
51 | typedef ssize_t (NetReceive)(NetClientState *, const uint8_t *, size_t); | |
52 | typedef ssize_t (NetReceiveIOV)(NetClientState *, const struct iovec *, int); | |
53 | typedef void (NetCleanup) (NetClientState *); | |
54 | typedef void (LinkStatusChanged)(NetClientState *); | |
f7860455 | 55 | typedef void (NetClientDestructor)(NetClientState *); |
b1be4280 | 56 | typedef RxFilterInfo *(QueryRxFilter)(NetClientState *); |
1f55ac45 VM |
57 | typedef bool (HasUfo)(NetClientState *); |
58 | typedef bool (HasVnetHdr)(NetClientState *); | |
59 | typedef bool (HasVnetHdrLen)(NetClientState *, int); | |
60 | typedef void (UsingVnetHdr)(NetClientState *, bool); | |
61 | typedef void (SetOffload)(NetClientState *, int, int, int, int, int); | |
62 | typedef void (SetVnetHdrLen)(NetClientState *, int); | |
c80cd6bb GK |
63 | typedef int (SetVnetLE)(NetClientState *, bool); |
64 | typedef int (SetVnetBE)(NetClientState *, bool); | |
16a3df40 ZC |
65 | typedef struct SocketReadState SocketReadState; |
66 | typedef void (SocketReadStateFinalize)(SocketReadState *rs); | |
34b25ca7 | 67 | |
3ed79cc9 | 68 | typedef struct NetClientInfo { |
2be64a68 | 69 | NetClientOptionsKind type; |
3ed79cc9 MM |
70 | size_t size; |
71 | NetReceive *receive; | |
72 | NetReceive *receive_raw; | |
73 | NetReceiveIOV *receive_iov; | |
74 | NetCanReceive *can_receive; | |
75 | NetCleanup *cleanup; | |
76 | LinkStatusChanged *link_status_changed; | |
b1be4280 | 77 | QueryRxFilter *query_rx_filter; |
ceb69615 | 78 | NetPoll *poll; |
1f55ac45 VM |
79 | HasUfo *has_ufo; |
80 | HasVnetHdr *has_vnet_hdr; | |
81 | HasVnetHdrLen *has_vnet_hdr_len; | |
82 | UsingVnetHdr *using_vnet_hdr; | |
83 | SetOffload *set_offload; | |
84 | SetVnetHdrLen *set_vnet_hdr_len; | |
c80cd6bb GK |
85 | SetVnetLE *set_vnet_le; |
86 | SetVnetBE *set_vnet_be; | |
3ed79cc9 MM |
87 | } NetClientInfo; |
88 | ||
4e68f7a0 | 89 | struct NetClientState { |
665a3b07 | 90 | NetClientInfo *info; |
436e5e53 | 91 | int link_down; |
4e68f7a0 SH |
92 | QTAILQ_ENTRY(NetClientState) next; |
93 | NetClientState *peer; | |
067404be | 94 | NetQueue *incoming_queue; |
bf38c1a0 | 95 | char *model; |
676cff29 | 96 | char *name; |
87ecb68b | 97 | char info_str[256]; |
893379ef | 98 | unsigned receive_disabled : 1; |
f7860455 | 99 | NetClientDestructor *destructor; |
1ceef9f2 | 100 | unsigned int queue_index; |
b1be4280 | 101 | unsigned rxfilter_notify_enabled:1; |
25aaadf0 | 102 | QTAILQ_HEAD(NetFilterHead, NetFilterState) filters; |
87ecb68b PB |
103 | }; |
104 | ||
ebef2c09 | 105 | typedef struct NICState { |
f6b26cf2 | 106 | NetClientState *ncs; |
ebef2c09 MM |
107 | NICConf *conf; |
108 | void *opaque; | |
a083a89d | 109 | bool peer_deleted; |
ebef2c09 MM |
110 | } NICState; |
111 | ||
16a3df40 ZC |
112 | struct SocketReadState { |
113 | int state; /* 0 = getting length, 1 = getting data */ | |
114 | uint32_t index; | |
115 | uint32_t packet_len; | |
116 | uint8_t buf[NET_BUFSIZE]; | |
117 | SocketReadStateFinalize *finalize; | |
118 | }; | |
119 | ||
120 | int net_fill_rstate(SocketReadState *rs, const uint8_t *buf, int size); | |
890ee6ab | 121 | char *qemu_mac_strdup_printf(const uint8_t *macaddr); |
4e68f7a0 | 122 | NetClientState *qemu_find_netdev(const char *id); |
6c51ae73 JW |
123 | int qemu_find_net_clients_except(const char *id, NetClientState **ncs, |
124 | NetClientOptionsKind type, int max); | |
4e68f7a0 SH |
125 | NetClientState *qemu_new_net_client(NetClientInfo *info, |
126 | NetClientState *peer, | |
127 | const char *model, | |
128 | const char *name); | |
ebef2c09 MM |
129 | NICState *qemu_new_nic(NetClientInfo *info, |
130 | NICConf *conf, | |
131 | const char *model, | |
132 | const char *name, | |
133 | void *opaque); | |
948ecf21 | 134 | void qemu_del_nic(NICState *nic); |
1ceef9f2 | 135 | NetClientState *qemu_get_subqueue(NICState *nic, int queue_index); |
b356f76d | 136 | NetClientState *qemu_get_queue(NICState *nic); |
cc1f0f45 JW |
137 | NICState *qemu_get_nic(NetClientState *nc); |
138 | void *qemu_get_nic_opaque(NetClientState *nc); | |
b20c6b9e | 139 | void qemu_del_net_client(NetClientState *nc); |
4e68f7a0 SH |
140 | NetClientState *qemu_find_vlan_client_by_name(Monitor *mon, int vlan_id, |
141 | const char *client_str); | |
57f9ef17 MM |
142 | typedef void (*qemu_nic_foreach)(NICState *nic, void *opaque); |
143 | void qemu_foreach_nic(qemu_nic_foreach func, void *opaque); | |
35277d14 SH |
144 | int qemu_can_send_packet(NetClientState *nc); |
145 | ssize_t qemu_sendv_packet(NetClientState *nc, const struct iovec *iov, | |
fbe78f4f | 146 | int iovcnt); |
35277d14 | 147 | ssize_t qemu_sendv_packet_async(NetClientState *nc, const struct iovec *iov, |
f3b6c7fc | 148 | int iovcnt, NetPacketSent *sent_cb); |
35277d14 SH |
149 | void qemu_send_packet(NetClientState *nc, const uint8_t *buf, int size); |
150 | ssize_t qemu_send_packet_raw(NetClientState *nc, const uint8_t *buf, int size); | |
151 | ssize_t qemu_send_packet_async(NetClientState *nc, const uint8_t *buf, | |
f3b6c7fc | 152 | int size, NetPacketSent *sent_cb); |
35277d14 SH |
153 | void qemu_purge_queued_packets(NetClientState *nc); |
154 | void qemu_flush_queued_packets(NetClientState *nc); | |
155 | void qemu_format_nic_info_str(NetClientState *nc, uint8_t macaddr[6]); | |
d6085e3a SH |
156 | bool qemu_has_ufo(NetClientState *nc); |
157 | bool qemu_has_vnet_hdr(NetClientState *nc); | |
158 | bool qemu_has_vnet_hdr_len(NetClientState *nc, int len); | |
159 | void qemu_using_vnet_hdr(NetClientState *nc, bool enable); | |
160 | void qemu_set_offload(NetClientState *nc, int csum, int tso4, int tso6, | |
161 | int ecn, int ufo); | |
162 | void qemu_set_vnet_hdr_len(NetClientState *nc, int len); | |
c80cd6bb GK |
163 | int qemu_set_vnet_le(NetClientState *nc, bool is_le); |
164 | int qemu_set_vnet_be(NetClientState *nc, bool is_be); | |
76d32cba | 165 | void qemu_macaddr_default_if_unset(MACAddr *macaddr); |
07caea31 | 166 | int qemu_show_nic_models(const char *arg, const char *const *models); |
d07f22c5 | 167 | void qemu_check_nic_model(NICInfo *nd, const char *model); |
07caea31 MA |
168 | int qemu_find_nic_model(NICInfo *nd, const char * const *models, |
169 | const char *default_model); | |
87ecb68b | 170 | |
86a77c38 ZYW |
171 | ssize_t qemu_deliver_packet_iov(NetClientState *sender, |
172 | unsigned flags, | |
173 | const struct iovec *iov, | |
174 | int iovcnt, | |
175 | void *opaque); | |
176 | ||
1a859593 | 177 | void print_net_client(Monitor *mon, NetClientState *nc); |
1ce6be24 | 178 | void hmp_info_network(Monitor *mon, const QDict *qdict); |
16a3df40 ZC |
179 | void net_socket_rs_init(SocketReadState *rs, |
180 | SocketReadStateFinalize *finalize); | |
87ecb68b PB |
181 | |
182 | /* NIC info */ | |
183 | ||
184 | #define MAX_NICS 8 | |
185 | ||
186 | struct NICInfo { | |
6eed1856 | 187 | MACAddr macaddr; |
9203f520 MM |
188 | char *model; |
189 | char *name; | |
190 | char *devaddr; | |
4e68f7a0 | 191 | NetClientState *netdev; |
48e2faf2 PM |
192 | int used; /* is this slot in nd_table[] being used? */ |
193 | int instantiated; /* does this NICInfo correspond to an instantiated NIC? */ | |
ffe6370c | 194 | int nvectors; |
87ecb68b PB |
195 | }; |
196 | ||
197 | extern int nb_nics; | |
198 | extern NICInfo nd_table[MAX_NICS]; | |
84007e81 | 199 | extern const char *host_net_devices[]; |
87ecb68b | 200 | |
63a01ef8 | 201 | /* from net.c */ |
ad196a9d JK |
202 | extern const char *legacy_tftp_prefix; |
203 | extern const char *legacy_bootp_filename; | |
204 | ||
4559a1db | 205 | int net_client_init(QemuOpts *opts, int is_netdev, Error **errp); |
7f161aae | 206 | int net_client_parse(QemuOptsList *opts_list, const char *str); |
dc1c9fe8 | 207 | int net_init_clients(void); |
668680f7 | 208 | void net_check_clients(void); |
63a01ef8 | 209 | void net_cleanup(void); |
3e5a50d6 MA |
210 | void hmp_host_net_add(Monitor *mon, const QDict *qdict); |
211 | void hmp_host_net_remove(Monitor *mon, const QDict *qdict); | |
928059a3 | 212 | void netdev_add(QemuOpts *opts, Error **errp); |
485febc6 | 213 | void qmp_netdev_add(QDict *qdict, QObject **ret, Error **errp); |
63a01ef8 | 214 | |
1422e32d PB |
215 | int net_hub_id_for_client(NetClientState *nc, int *id); |
216 | NetClientState *net_hub_port_find(int hub_id); | |
217 | ||
f54825cc AJ |
218 | #define DEFAULT_NETWORK_SCRIPT "/etc/qemu-ifup" |
219 | #define DEFAULT_NETWORK_DOWN_SCRIPT "/etc/qemu-ifdown" | |
a7c36ee4 CB |
220 | #define DEFAULT_BRIDGE_HELPER CONFIG_QEMU_HELPERDIR "/qemu-bridge-helper" |
221 | #define DEFAULT_BRIDGE_INTERFACE "br0" | |
f54825cc | 222 | |
ed16ab5a | 223 | void qdev_set_nic_properties(DeviceState *dev, NICInfo *nd); |
9d07d757 | 224 | |
7fc8d918 JW |
225 | #define POLYNOMIAL 0x04c11db6 |
226 | unsigned compute_mcast_idx(const uint8_t *ep); | |
227 | ||
701a8f76 PB |
228 | #define vmstate_offset_macaddr(_state, _field) \ |
229 | vmstate_offset_array(_state, _field.a, uint8_t, \ | |
230 | sizeof(typeof_field(_state, _field))) | |
231 | ||
232 | #define VMSTATE_MACADDR(_field, _state) { \ | |
233 | .name = (stringify(_field)), \ | |
234 | .size = sizeof(MACAddr), \ | |
235 | .info = &vmstate_info_buffer, \ | |
236 | .flags = VMS_BUFFER, \ | |
237 | .offset = vmstate_offset_macaddr(_state, _field), \ | |
238 | } | |
239 | ||
87ecb68b | 240 | #endif |