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eth: Extend vlan stripping functions

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Make VLAN stripping functions return number of bytes
copied to given Ethernet header buffer.

This information should be used to re-compose
packet IOV after VLAN stripping.

Cc: qemu-stable@nongnu.org
Signed-off-by: Dmitry Fleytman <dmitry@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
This commit is contained in:
Dmitry Fleytman 2017-02-16 14:29:32 +02:00 • committed by Jason Wang
parent 290e6e113b
commit 566342c312
2 changed files with 16 additions and 13 deletions
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4
include/net/eth.h
View file

@ -331,12 +331,12 @@ eth_get_pkt_tci(const void *p)
}
}
bool
size_t
eth_strip_vlan(const struct iovec *iov, int iovcnt, size_t iovoff,
uint8_t *new_ehdr_buf,
uint16_t *payload_offset, uint16_t *tci);
bool
size_t
eth_strip_vlan_ex(const struct iovec *iov, int iovcnt, size_t iovoff,
uint16_t vet, uint8_t *new_ehdr_buf,
uint16_t *payload_offset, uint16_t *tci);