| Commit message (Collapse) | Author | Age | Files | Lines |
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tap_ip_send() is never used for TCP packets, we're unlikely to use it for
that in future, and the handling of TCP packets makes other cleanups
unnecessarily awkward. Remove it.
This is the only user of csum_tcp4(), so we can remove that as well.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
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We calculate IPv4 header checksums in at least two places, in dhcp() and
in tap_ip_send. Add a helper to handle this calculation in both places.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
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At least two places in passt fill in UDP over IPv4 checksums, although
since UDP checksums are optional with IPv4 that just amounts to storing
a 0 (in tap_ip_send()) or leaving a 0 from an earlier initialization (in
dhcp()). For consistency, add a helper for this "calculation".
Just for the heck of it, add the option (compile time disabled for now) to
calculate real UDP checksums.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
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Add a helper for calculating UDP checksums when used over IPv6
For future flexibility, the new helper takes parameters for the fields in
the IPv6 pseudo-header, so an IPv6 header or pseudo-header doesn't need to
be explicitly constructed. It also allows the UDP header and payload to
be in separate buffers, although we don't use this yet.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
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Although tap_ip_send() is currently the only place calculating ICMP
checksums, create a helper function for symmetry with ICMPv6. For
future flexibility it allows the ICMPv6 header and payload to be in
separate buffers.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
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At least two places in passt calculate ICMPv6 checksums, ndp() and
tap_ip_send(). Add a helper to handle this calculation in both places.
For future flexibility, the new helper takes parameters for the fields in
the IPv6 pseudo-header, so an IPv6 header or pseudo-header doesn't need to
be explicitly constructed. It also allows the ICMPv6 header and payload to
be in separate buffers, although we don't use this yet.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
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Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
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...at the moment, just for consistency with packet.h, icmp.h,
tcp.h and udp.h.
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
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SPDX tags don't replace license files. Some notices were missing and
some tags were not according to the SPDX specification, too.
Now reuse --lint from the REUSE tool (https://reuse.software/) passes.
Reported-by: Martin Hauke <mardnh@gmx.de>
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
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I forgot to commit this.
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
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