Add transient mode #13
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Signed-off-by: Quentin Deslandes <[email protected]>
Use argp.h to define command line arguments and parse them. Arguments are stored within main.c and are not accessible from other translation unit for now. Add --transient argument to the list of supported arguments, it will be used in a later commit. Signed-off-by: Quentin Deslandes <[email protected]>
--transient will prevent bpfilter from loading its context from bpfilter.blob, nor will it allow to save its runtime context into bpfilter.blob. Additionally, all the BPF programs will be unloaded when bpfilter stops. To summarise, --transient prevent bpfilter's system modifications to remain after its stopped. Signed-off-by: Quentin Deslandes <[email protected]>
Signed-off-by: Quentin Deslandes <[email protected]>
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Transient mode ensure
bpfilterwon't load/run/bpfilter.blobat startup, nor will it save its runtime context into/run/bpfilter.blob. Additionally, all the generated BPF program will be detached and unloaded whenbpfilterstops.