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net: add an API for 'raw' packets

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In the case where a NIC and backend agree on a packet header format,
this API allows injecting packets which lack the agreed upon header.

We need this for sending our gratuitous ARP.

Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Mark McLoughlin
2009-10-22 17:43:41 +01:00
committed by Anthony Liguori
parent c0b8e49c69
commit ca77d17591
3 changed files with 32 additions and 8 deletions
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2
net.h
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@ -45,6 +45,7 @@ typedef void (LinkStatusChanged)(VLANClientState *);
struct VLANClientState {
net_client_type type;
NetReceive *receive;
NetReceive *receive_raw;
NetReceiveIOV *receive_iov;
/* Packets may still be sent if this returns zero. It's used to
rate-limit the slirp code. */
@ -89,6 +90,7 @@ ssize_t qemu_sendv_packet(VLANClientState *vc, const struct iovec *iov,
ssize_t qemu_sendv_packet_async(VLANClientState *vc, const struct iovec *iov,
int iovcnt, NetPacketSent *sent_cb);
void qemu_send_packet(VLANClientState *vc, const uint8_t *buf, int size);
ssize_t qemu_send_packet_raw(VLANClientState *vc, const uint8_t *buf, int size);
ssize_t qemu_send_packet_async(VLANClientState *vc, const uint8_t *buf,
int size, NetPacketSent *sent_cb);
void qemu_purge_queued_packets(VLANClientState *vc);