Hello everyone.

I'm trying to configure smart card login of active directory users on an ubuntu 
machine.
I'm following this guide: 
https://scriptech.io/linux-enable-smartcard-authentication-against-active-directory-and-generate-tgt-using-pkinit

But for me the opensc library cannot talk with my card and I'm using a library 
that my card provider gave my. My issue right now is that `p11_child --pre 
--nssdb=/etc/pki/nssdb` fails to pull the certificate from my smart card.

I'm able to log in with AD users and their smart cards using `kinit` and `ksu`, 
so I know the cards are okay. 

What's weird to me is that `modutil -list` shows slot 0 as empty and slot 1 as 
not empty, and then `p11_child --pre` doesn't try to use slot 1. Maybe 
p11_child thinks that if slot 0 is empty then slot 1 must be empty too?

Please help!

Here are the relevant logs:
```
# modutil -dbdir nssdb -list

Listing of PKCS #11 Modules
----------------------------------------------------
1. NSS Internal #11 Module

    uri: pkcs11: library-manufacturer=Mozilla%20Foundation; 
library-description=NSS%20Internal%20Crypto%20Services;library
    slots: 2 slots attached
    status: loaded

    slot: NSS Internal Cryptographic Services
    token: NSS Generic Crypto Services
    uri: 
pkcs11:token=NSS%20Generic%20Crypto%20Services;manufacturer=Mozilla%20Foundation;serial=0000000000000000;model=NSS%203

    slot: NSS User Private Key and Certificate Services
    token: NSS Certificate DB
    uri: pkcs11:token=NSS%20Certificate%20DB;manufacturer=Mozilla%20Foundation; 
serial=0000000000000000;model=NSS%203

2. MyTest

    library name: mylib.so
    uri: 
pkcs11:library-manufacturer=Boring%20Ent.;library-description=Cryptokit%20Extended%20Version;libversion=5.3
    slots: 2 slots attached
    status: loaded

    slot: [EMPTY]
    token:
    uri: pkcs11:

    slot: Athena ASE IIIe (SBR069-00000) 00 00
    token: 918
    uri: 
pkcs11:token=918;manufacturer=Boring%20Ent.;serial=0349B7D30E11024G;model=PKISmartCard%20(A)
```

```
# p11_child --pre --nssdb=nssdb -d=9

[main] (0x0400): p11_child started.
[main] (0x2000): Running in [pre-auth] mode.
[main] (0x2000): Running with effective IDs: [0][0].
[do_card] (0x4000): Default Module List:
[do_card] (0x4000): common name: INSS Internal PKCS #11
[do_card] (0x4000): dll name: [(null)).
[do_card] (0x4000): common name: [MyTest]
[do_card] (0x4000): dll name: [Libsadaptor.so].
[do_card] (0x4000): Dead Module List:
[do_card] (0x4000): DB Module List:
[do_card] (ex4000): common name: [NSS Internal Module].
[do_card] (0x4000): dll name: [(null)].
[do_card] (0x4000): Description [NSS Internal Cryptographic Services Mozilla 
Foundation] Manufacturer [Mozilla Foundation] flags [9] removable [false] token 
present [true].
[do_card] (0x4000): Description [NSS User Private Key and Certificate Services 
Mozilla Foundation] Manufacturer [Mozilla Foundation] flags [1] removable 
[false] token present [true].
[do_card] (0x4000): Description [[EMPTY] Boring Ent.] Manufacturer [Boring 
Ent.] flags [2] removable [true] token present [false].
[do_card] (0x4000): Token not present.
[main] (0x0040): do-work failed.
[main] (Ox0020): p11_child failed!
```
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