tetragon: Setup tailcalls directly in bpf programs #3002
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Signed-off-by: Jiri Olsa <[email protected]>
We need the support for loading BTF with declaration tags, cilium/ebpf/main is in a good shape now. Signed-off-by: Jiri Olsa <[email protected]>
Disable content loading at this point, we just care about the map, the content will be loaded when the whole object gets loaded. Signed-off-by: Jiri Olsa <[email protected]>
because it got deprecated, replacing it with our version. Signed-off-by: Jiri Olsa <[email protected]>
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Switching to explicit tail call map definition. This way it's easier to overload tail calls in other projects using tetragon. It also allows us to switch execve sensors to tp_btf which is not possible at the moment due to extra numbers in the program section name. Signed-off-by: Jiri Olsa <[email protected]>
Switching to explicit tail call map definition. This way it's easier to overload tail calls in other projects using tetragon. Signed-off-by: Jiri Olsa <[email protected]>
Switching to explicit tail call map definition. This way it's easier to overload tail calls in other projects using tetragon. Signed-off-by: Jiri Olsa <[email protected]>
Switching to explicit tail call map definition. This way it's easier to overload tail calls in other projects using tetragon. Signed-off-by: Jiri Olsa <[email protected]>
Switching to explicit tail call map definition. This way it's easier to overload tail calls in other projects using tetragon. Signed-off-by: Jiri Olsa <[email protected]>
Allow projects that use tetragon to specify their own tail call map and overload execve program behaviour. Signed-off-by: Jiri Olsa <[email protected]>
When calling this functions from other projects, they stay global and it's important the verifier knows which argment is context. Adding also other argument related declaration tags. Signed-off-by: Jiri Olsa <[email protected]>
Introducing CheckSensorLoadBase function to allow checks with specific base sensor. Signed-off-by: Jiri Olsa <[email protected]>
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This is more straigt forward than current way (which still stays supported).
It also allows to override execve sensor functionality for projects that depend on tetragon.