Hello tor-dev, Here goes the status report for the past 2 weeks: - still working at [1] in public branch [2] - rewrote how the filters work, such that a filter currently is an array of function pointers, each function being responsible of setting up the parameter filter for a syscall; also added support such that in the future it is a struct containing the array of function pointers and a linked list of parameters associated with the filter; - I have updated the filters which proved to be a bit more challenging than expected mainly due to the multiple worker thread processes created with clone, which are harder to follow with strace; - as of today, the latest version I have pushed has a more restrictive parameter filter which works for both a normal and ORPort launches.
TODO: - fix open syscall problem for file names due to external library opens - investigate socketcall syscalls' parameters failure.. - finish support for multiple filters (beginning of stage 3) - fine-tune filters a bit (end of stage 2) More details may be found here [1]. Looking forward to some feedback, if you happen to have any! References: [1] https://trac.torproject.org/projects/tor/ticket/9249 [2] https://github.com/cristiantoader/tor-gsoc-capabilities/tree/gsoc-cap-stage2
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