pamu2fcfg depends on libjson-c.so.2 that is no longer shipped with ubuntu about pam-u2f

[a-dma]

I'm using 16.10 myself and I have no problems with either the module itself or pamu2fcfg.

Have your recently upgraded the library? Have you tried running ldconfig? What is the output of ldd pamu2fcfg?

[larlin]

I tried running ldconfig on the pamu2fcfg, on the dir that contains libjson-c.so.3. Any other way that it should be used? Haven't needed to use it before so don't know how it is normally applied.

I guess the library was update as part of the system upgrade I haven't done anything more.

Here is the output from ldd:
ldd /usr/local/bin/pamu2fcfg
linux-vdso.so.1 => (0x00007ffe837f0000)
libu2f-host.so.0 => /usr/local/lib/libu2f-host.so.0 (0x00007f8500e6f000)
libu2f-server.so.0 => /usr/local/lib/libu2f-server.so.0 (0x00007f8500c67000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f85008a0000)
libhidapi-hidraw.so.0 => /usr/lib/x86_64-linux-gnu/libhidapi-hidraw.so.0 (0x00007f850069c000)
libjson-c.so.2 => not found
libjson-c.so.2 => not found
libssl.so.1.0.0 => /lib/x86_64-linux-gnu/libssl.so.1.0.0 (0x00007f8500431000)
libcrypto.so.1.0.0 => /lib/x86_64-linux-gnu/libcrypto.so.1.0.0 (0x00007f84fffed000)
/lib64/ld-linux-x86-64.so.2 (0x000055e781fc3000)
libudev.so.1 => /lib/x86_64-linux-gnu/libudev.so.1 (0x00007f84fffcc000)
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f84ffdc8000)
librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f84ffbc0000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f84ff9a0000)

Edit: the version pamu2fcfg is 1.0.4-1 according to the packet manager, can't see the version of the binary as it can't run.

[a-dma]

oh have upgraded from 16.04 to 16.10...

try running sudo apt-get dist-upgrade, if that doesn't help try reinstalling pamu2fcfg sudo apt-get --reinstall pamu2fcfg

[larlin]

Will do, I did try complete removal and install from Synaptic that didn't do any difference. But will try tonight when I have access to the machine again.

[a-dma]

also since the binary is located in /usr/local, have you built the tool yourself? Is that what you're running? In that case you might want to rebuild to have it link against the updated version of the library.

[larlin]

Doh! You are probably right I forgot that I had to build it my self when I started using u2f. Sorry for the time wasted on this. Then I probably only need to uninstall the version I built and then it will use the version from the package manager. Thank you so much for the help!

[a-dma]

No worries.

I'm closing this, feel free to reopen if the problem isn't fixed.