On Sat, Jul 6, 2013 at 3:49 PM, richard -rw- weinberger <[email protected]> wrote: > "On Sat, Jul 6, 2013 at 2:18 PM, Ben Noordhuis <[email protected]> wrote: >> On Sat, Jul 6, 2013 at 10:49 AM, richard -rw- weinberger >> <[email protected]> wrote: >>> Hi! >>> >>> Is node providing a mechanism to modify the current capability set on Linux? >>> I'd like to drop some capabilities and limit the capability bounding set. >> >> You can drop root privileges with process.setuid(), process.setgid() >> and process.initgroups(), which pretty much map 1-to-1 to the POSIX >> functions of the same name. > > This has nothing do to with capabilities.
I give you a friendly, informative and complete answer - and you respond by being a rude jerk. >> There is nothing in node.js core that lets you manipulate Linux >> capabilities like capset() or prctl(PR_CAPBSET_DROP) do - nor will >> there be, it's too platform-specific - > > Why? We have libcap-np which is POSIX. > Node has already support for such functions. > Like process.getgid(). There are no capabilities in POSIX, it's strictly a Linux thing. You're probably thinking of POSIX ACLs. For that matter, there is no libcap-np either. If that's a typo and you meant libcap-ng, that too is strictly a Linux thing. >> but it's trivial to write a >> small C++ add-on for it. There may be one (or several) already >> available through npm. > > The only npm module I could find was "node-posix-caps-ng". > But sadly the author does not seem to understand capabilities. > The ->clear_caps() method is broken. It's easy to regain all capabilities. > He did not honor the capability bounding set. > > So it is clearly not trivial to write such an add-on. Then I suggest you contact the author and set him straight. Or write your own add-on and publish it. -- -- Job Board: http://jobs.nodejs.org/ Posting guidelines: https://github.com/joyent/node/wiki/Mailing-List-Posting-Guidelines You received this message because you are subscribed to the Google Groups "nodejs" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/nodejs?hl=en?hl=en --- You received this message because you are subscribed to the Google Groups "nodejs" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
