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authorPaolo Bonzini <pbonzini@redhat.com>2012-10-24 08:43:34 +0200
committerPaolo Bonzini <pbonzini@redhat.com>2012-12-19 08:31:29 +0100
commit1422e32db51ff2b1194fb24a6201c4310be5667d (patch)
tree56f9911d524eca4194573a6037303a169e61db50 /include
parentfd9400b302ef582c3ae8a8d5288338ea5f0f4c9a (diff)
downloadqemu-arm-1422e32db51ff2b1194fb24a6201c4310be5667d.tar.gz
net: reorganize headers
Move public headers to include/net, and leave private headers in net/. Put the virtio headers in include/net/tap.h, removing the multiple copies that existed. Leave include/net/tap.h as the interface for NICs, and net/tap_int.h as the interface for OS-specific parts of the tap backend. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'include')
-rw-r--r--include/net/checksum.h29
-rw-r--r--include/net/net.h175
-rw-r--r--include/net/queue.h58
-rw-r--r--include/net/slirp.h47
-rw-r--r--include/net/tap.h67
5 files changed, 376 insertions, 0 deletions
diff --git a/include/net/checksum.h b/include/net/checksum.h
new file mode 100644
index 0000000000..1f052986e6
--- /dev/null
+++ b/include/net/checksum.h
@@ -0,0 +1,29 @@
+/*
+ * IP checksumming functions.
+ * (c) 2008 Gerd Hoffmann <kraxel@redhat.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; under version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef QEMU_NET_CHECKSUM_H
+#define QEMU_NET_CHECKSUM_H
+
+#include <stdint.h>
+
+uint32_t net_checksum_add(int len, uint8_t *buf);
+uint16_t net_checksum_finish(uint32_t sum);
+uint16_t net_checksum_tcpudp(uint16_t length, uint16_t proto,
+ uint8_t *addrs, uint8_t *buf);
+void net_checksum_calculate(uint8_t *data, int length);
+
+#endif /* QEMU_NET_CHECKSUM_H */
diff --git a/include/net/net.h b/include/net/net.h
new file mode 100644
index 0000000000..9ff9305d7a
--- /dev/null
+++ b/include/net/net.h
@@ -0,0 +1,175 @@
+#ifndef QEMU_NET_H
+#define QEMU_NET_H
+
+#include "qemu-queue.h"
+#include "qemu-common.h"
+#include "qdict.h"
+#include "qemu-option.h"
+#include "net/queue.h"
+#include "vmstate.h"
+#include "qapi-types.h"
+
+struct MACAddr {
+ uint8_t a[6];
+};
+
+/* qdev nic properties */
+
+typedef struct NICConf {
+ MACAddr macaddr;
+ NetClientState *peer;
+ int32_t bootindex;
+} NICConf;
+
+#define DEFINE_NIC_PROPERTIES(_state, _conf) \
+ DEFINE_PROP_MACADDR("mac", _state, _conf.macaddr), \
+ DEFINE_PROP_VLAN("vlan", _state, _conf.peer), \
+ DEFINE_PROP_NETDEV("netdev", _state, _conf.peer), \
+ 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 struct NetClientInfo {
+ NetClientOptionsKind type;
+ size_t size;
+ NetReceive *receive;
+ NetReceive *receive_raw;
+ NetReceiveIOV *receive_iov;
+ NetCanReceive *can_receive;
+ NetCleanup *cleanup;
+ LinkStatusChanged *link_status_changed;
+ NetPoll *poll;
+} NetClientInfo;
+
+struct NetClientState {
+ NetClientInfo *info;
+ int link_down;
+ QTAILQ_ENTRY(NetClientState) next;
+ NetClientState *peer;
+ NetQueue *send_queue;
+ char *model;
+ char *name;
+ char info_str[256];
+ unsigned receive_disabled : 1;
+};
+
+typedef struct NICState {
+ NetClientState nc;
+ NICConf *conf;
+ void *opaque;
+ bool peer_deleted;
+} NICState;
+
+NetClientState *qemu_find_netdev(const char *id);
+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_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);
+
+/* 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
diff --git a/include/net/queue.h b/include/net/queue.h
new file mode 100644
index 0000000000..fc02b33915
--- /dev/null
+++ b/include/net/queue.h
@@ -0,0 +1,58 @@
+/*
+ * Copyright (c) 2003-2008 Fabrice Bellard
+ * Copyright (c) 2009 Red Hat, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef QEMU_NET_QUEUE_H
+#define QEMU_NET_QUEUE_H
+
+#include "qemu-common.h"
+
+typedef struct NetPacket NetPacket;
+typedef struct NetQueue NetQueue;
+
+typedef void (NetPacketSent) (NetClientState *sender, ssize_t ret);
+
+#define QEMU_NET_PACKET_FLAG_NONE 0
+#define QEMU_NET_PACKET_FLAG_RAW (1<<0)
+
+NetQueue *qemu_new_net_queue(void *opaque);
+
+void qemu_del_net_queue(NetQueue *queue);
+
+ssize_t qemu_net_queue_send(NetQueue *queue,
+ NetClientState *sender,
+ unsigned flags,
+ const uint8_t *data,
+ size_t size,
+ NetPacketSent *sent_cb);
+
+ssize_t qemu_net_queue_send_iov(NetQueue *queue,
+ NetClientState *sender,
+ unsigned flags,
+ const struct iovec *iov,
+ int iovcnt,
+ NetPacketSent *sent_cb);
+
+void qemu_net_queue_purge(NetQueue *queue, NetClientState *from);
+bool qemu_net_queue_flush(NetQueue *queue);
+
+#endif /* QEMU_NET_QUEUE_H */
diff --git a/include/net/slirp.h b/include/net/slirp.h
new file mode 100644
index 0000000000..2ca09b65b7
--- /dev/null
+++ b/include/net/slirp.h
@@ -0,0 +1,47 @@
+/*
+ * QEMU System Emulator
+ *
+ * Copyright (c) 2003-2008 Fabrice Bellard
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#ifndef QEMU_NET_SLIRP_H
+#define QEMU_NET_SLIRP_H
+
+#include "qemu-common.h"
+#include "qdict.h"
+#include "qemu-option.h"
+#include "qapi-types.h"
+
+#ifdef CONFIG_SLIRP
+
+void net_slirp_hostfwd_add(Monitor *mon, const QDict *qdict);
+void net_slirp_hostfwd_remove(Monitor *mon, const QDict *qdict);
+
+int net_slirp_redir(const char *redir_str);
+
+int net_slirp_parse_legacy(QemuOptsList *opts_list, const char *optarg, int *ret);
+
+int net_slirp_smb(const char *exported_dir);
+
+void do_info_usernet(Monitor *mon);
+
+#endif
+
+#endif /* QEMU_NET_SLIRP_H */
diff --git a/include/net/tap.h b/include/net/tap.h
new file mode 100644
index 0000000000..bb7efb5439
--- /dev/null
+++ b/include/net/tap.h
@@ -0,0 +1,67 @@
+/*
+ * QEMU System Emulator
+ *
+ * Copyright (c) 2003-2008 Fabrice Bellard
+ * Copyright (c) 2009 Red Hat, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef QEMU_NET_TAP_H
+#define QEMU_NET_TAP_H
+
+#include "qemu-common.h"
+#include "qapi-types.h"
+
+int tap_has_ufo(NetClientState *nc);
+int tap_has_vnet_hdr(NetClientState *nc);
+int tap_has_vnet_hdr_len(NetClientState *nc, int len);
+void tap_using_vnet_hdr(NetClientState *nc, int using_vnet_hdr);
+void tap_set_offload(NetClientState *nc, int csum, int tso4, int tso6, int ecn, int ufo);
+void tap_set_vnet_hdr_len(NetClientState *nc, int len);
+
+int tap_get_fd(NetClientState *nc);
+
+struct vhost_net;
+struct vhost_net *tap_get_vhost_net(NetClientState *nc);
+
+struct virtio_net_hdr
+{
+#define VIRTIO_NET_HDR_F_NEEDS_CSUM 1 // Use csum_start, csum_offset
+#define VIRTIO_NET_HDR_F_DATA_VALID 2 // Csum is valid
+ uint8_t flags;
+#define VIRTIO_NET_HDR_GSO_NONE 0 // Not a GSO frame
+#define VIRTIO_NET_HDR_GSO_TCPV4 1 // GSO frame, IPv4 TCP (TSO)
+#define VIRTIO_NET_HDR_GSO_UDP 3 // GSO frame, IPv4 UDP (UFO)
+#define VIRTIO_NET_HDR_GSO_TCPV6 4 // GSO frame, IPv6 TCP
+#define VIRTIO_NET_HDR_GSO_ECN 0x80 // TCP has ECN set
+ uint8_t gso_type;
+ uint16_t hdr_len;
+ uint16_t gso_size;
+ uint16_t csum_start;
+ uint16_t csum_offset;
+};
+
+struct virtio_net_hdr_mrg_rxbuf
+{
+ struct virtio_net_hdr hdr;
+ uint16_t num_buffers; /* Number of merged rx buffers */
+};
+
+#endif /* QEMU_NET_TAP_H */