Ghost wrote to Gamgee <=-

Re: Re: setcap command
By: Gamgee to Ghost on Mon Oct 10 2022 08:18 am

sbbs@greg-Virtual-Machine:~/sbbs/exec$ sudo setcap

cap_net_bind_service=+

ep /home/sbbs/sbbs/exec/sbbs Failed to
set
capabilities on file `/home/sbbs/sbbs/exec/sbbs' (Invalid
argument) The value of the capability argument is not permitted
for a file. Or the file is not a regular (non-symlink) file

any help would be appreciated. I have looked on the web and could
not come up with anything better than what I have done here.

My guess is that the 'sbbs' executable (/home/sbbs/sbbs/exec/sbbs) is actually a symlink to the actual file (/home/sbbs/sbbs/repo/exec/sbbs),
and it's failing for the reason given in that error message regarding a

syml

ink.

Well, I haven't set up any symlinks, so unless it was done when
installed, I don't know. However, I tried your suggestion and got
the same response from the system.

Well, if you followed the installation instructions example, you may
have set up symlinks. On your "make install" command line to install,
did you also include "SYMLINK=1" ?

Or just do the command "ls -l" while in the /sbbs directory, and see if
there are symlinks there, or not.



... Gone crazy, be back later, please leave message.
--- MultiMail/Linux v0.52
þ Synchronet þ Palantir BBS * palantirbbs.ddns.net * Pensacola, FL
* Origin: Vertrauen - [vert/cvs/bbs].synchro.net (1:103/705)

Re: Re: setcap command
By: Gamgee to Ghost on Mon Oct 10 2022 09:33 pm

Or just do the command "ls -l" while in the /sbbs directory, and see if there are symlinks there, or not.

have set up symlinks. On your "make install" command line to install,
did you also include "SYMLINK=1" ?

Or just do the command "ls -l" while in the /sbbs directory, and see if there are symlinks there, or not.

I tried another suggestion last night and it is now working correctly.
Thanks for the help
--- SBBSecho 3.11-Win32
* Origin: Ice Castle BBS, Anchorage, AK (1:153/143)

Re: Re: setcap command
By: Gamgee to Ghost on Mon Oct 10 2022 08:18:00

Ghost wrote to All <=-

I have tried (and failed) using the setcap command to allow the
ports <1024 to be used, but the command has failed with the
following:

sbbs@greg-Virtual-Machine:~/sbbs/exec$ sudo setcap cap_net_bind_service=+ep /home/sbbs/sbbs/exec/sbbs Failed to set capabilities on file `/home/sbbs/sbbs/exec/sbbs' (Invalid
argument) The value of the capability argument is not permitted
for a file. Or the file is not a regular (non-symlink) file

My guess is that the 'sbbs' executable (/home/sbbs/sbbs/exec/sbbs) is actually a symlink to the actual file (/home/sbbs/sbbs/repo/exec/sbbs), and it's failing for the reason given in that error message regarding a symlink.

symlinks shouldnt matter in this regard, most likely the path is wrong (or h isnt root when he is running the commanf)...
the /home/sbbs/sbbs bit looks suspect, but i don't know how he has installed it.

setcap works fine on symlinks

regards
---

Charles Blackburn
The F.B.O BBS 21:1/221 618:250/36
bbs.thefbo.us IPV4/V6
DOVE-Net FSX-Net MicroNET USENET




... A really busy person never knows how much he ways.
---
þ Synchronet þ The FBO BBS - bbs.thefbo.us - A place for aviation fun....
* Origin: Vertrauen - [vert/cvs/bbs].synchro.net (1:103/705)

Re: Re: setcap command
By: Charles Blackburn to Gamgee on Tue Oct 11 2022 04:09 pm

setcap works fine on symlinks

No, it does not. If /sbbs/exec/sbbs is a symlink, for example, attempting to setcap on it results in this error (as was previously reported):

$ sudo setcap cap_net_bind_service=+ep /sbbs/exec/sbbs
Failed to set capabilities on file `/sbbs/exec/sbbs' (Invalid argument)
The value of the capability argument is not permitted for a file. Or the file is not a regular (non-symlink) file
--
digital man (rob)

Synchronet/BBS Terminology Definition #49:
KD = King Drafus (Allen Christiansen)
Norco, CA WX: 76.0øF, 66.0% humidity, 2 mph SE wind, 0.00 inches rain/24hrs
--- SBBSecho 3.15-Linux
* Origin: Vertrauen - [vert/cvs/bbs].synchro.net (1:103/705)