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| author | David Gibson <david@gibson.dropbear.id.au> | 2023-01-06 11:43:17 +1100 |
|---|---|---|
| committer | Stefano Brivio <sbrivio@redhat.com> | 2023-01-23 18:54:52 +0100 |
| commit | 4b3d38a0690988387fa4cef432ad96fe7ee32bf8 (patch) | |
| tree | 667da707a578ebadb5f6a5d27e9eba7493ab0e83 /tcp.c | |
| parent | e4443ba9bd32b5d1f80a3167b6073e8f3ff4f14a (diff) | |
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tap: Add "tap headers" abstraction
Currently both the TCP and UDP code need to deal in various places with the
details of the L2 headers, and also the tap-specific "vnet_len" header.
This makes abstracting the tap interface to new backends (e.g. vhost-user
or tun) more difficult.
To improve this abstraction, create a new 'tap_hdr' structure which
represents both L2 (always Ethernet at the moment, but might be vary in
future) and any additional tap specific headers (such as the qemu socket's
vnet_len field). Provide helper functions and macros to initialize, update
and use it.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
Diffstat (limited to 'tcp.c')
0 files changed, 0 insertions, 0 deletions