Xdp adjust head part1 #522
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shankarseal
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@shankarseal please rebase and resolve conflicts |
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This is part 1 of implementation for bpf_xdp_adjust_head helper.
This PR adds the prototype for the new function in netebpf ext XDP program information. Rest of the PR Is developing a sample eBPF Program that calls this function to encap an inbound packet with an extra IP header and reflects it back to the sender. And teh user mode unit test was added to test this program.
Part 2 will provide the actual implementation of the helper and an app to perform test with real network packets.
This PR builds on top of #520