• Daniel Borkmann's avatar
    bpf: pass original insn directly to convert_ctx_access · 6b8cc1d1
    Daniel Borkmann authored
    Currently, when calling convert_ctx_access() callback for the various
    program types, we pass in insn->dst_reg, insn->src_reg, insn->off from
    the original instruction. This information is needed to rewrite the
    instruction that is based on the user ctx structure into a kernel
    representation for the ctx. As we'd like to allow access size beyond
    just BPF_W, we'd need also insn->code for that in order to decode the
    original access size. Given that, lets just pass insn directly to the
    convert_ctx_access() callback and work on that to not clutter the
    callback with even more arguments we need to pass when everything is
    already contained in insn. So lets go through that once, no functional
    change.
    Signed-off-by: default avatarDaniel Borkmann <daniel@iogearbox.net>
    Acked-by: default avatarAlexei Starovoitov <ast@kernel.org>
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    6b8cc1d1
verifier.c 95.1 KB