Upstream ticket:
https://pagure.io/freeipa/issue/6797

This is a prerequisite for self-service Web UI for AD users work.

ipa-4-5:

    7d48fb841a23e9f036f3d449d80623d1225c820a ldap2: use LDAP whoami operation to retrieve bind DN for current connection
    master:

    7324451834ec03786fda947679f750fe2a72f29c ldap2: use LDAP whoami operation to retrieve bind DN for current connection

Tested on RHEL7.4

ipa-server-4.5.0-13.el7.x86_64
krb5-server-1.15.1-8.el7.x86_64
pki-server-10.4.1-6.el7.noarch
389-ds-base-1.3.6.1-15.el7.x86_64
sssd-1.15.2-35.el7.x86_64
selinux-policy-3.13.1-152.el7.noarch

1. Establish trust with AD
2. Add override for trusted aduser to default trust view.
#ipa iduseroverride-add "default trust view" aduser2
3. [root@autohv01 ~]# echo **** | kinit aduser2
Password for aduser2: 
[root@autohv01 ~]# klist -l
Principal name                 Cache name
--------------                 ----------
aduser2                 KEYRING:persistent:0:krb_ccache_9Fc3Eqa

4. [root@autohv01 ~]# ipa config-show --rights --all
  dn: cn=ipaConfig,cn=etc,dc=testrelm,dc=test
  Maximum username length: 32
  Home directory base: /home
  Default shell: /bin/sh
  Default users group: ipausers
  Default e-mail domain: testrelm.test
  Search time limit: 2
  Search size limit: 100
  User search fields: uid,givenname,sn,telephonenumber,ou,title
  Group search fields: cn,description
  Enable migration mode: FALSE
  Certificate Subject base: O=TESTRELM.TEST
  Default group objectclasses: top, groupofnames, nestedgroup, ipausergroup, ipaobject
  Default user objectclasses: top, person, organizationalperson, inetorgperson, inetuser, posixaccount, krbprincipalaux, krbticketpolicyaux, ipaobject, ipasshuser
  Password Expiration Notification (days): 4
  Password plugin features: AllowNThash, KDC:Disable Last Success
  SELinux user map order: guest_u:s0$xguest_u:s0$user_u:s0$staff_u:s0-s0:c0.c1023$unconfined_u:s0-s0:c0.c1023
  Default SELinux user: unconfined_u:s0-s0:c0.c1023
  Default PAC types: MS-PAC, nfs:NONE
  IPA masters: 
  IPA CA servers: 
  IPA NTP servers: 
  attributelevelrights: {u'cn': u'rsc', u'ipauserauthtype': u'rsc', u'ipadefaultprimarygroup': u'rsc', u'ipapwdexpadvnotify': u'rsc', u'ipasearchtimelimit': u'rsc', u'ipacustomfields': u'rsc', u'ipasearchrecordslimit': u'rsc', u'nsaccountlock': u'', u'ipausersearchfields': u'rsc', u'ipadefaultloginshell': u'rsc', u'ipacertificatesubjectbase': u'rsc', u'ipadomainresolutionorder': u'rsc', u'ipaconfigstring': u'rsc', u'ipakrbauthzdata': u'rsc', u'ipauserobjectclasses': u'rsc', u'ipagroupsearchfields': u'rsc', u'ipadefaultemaildomain': u'rsc', u'ipagroupobjectclasses': u'rsc', u'ipamaxusernamelength': u'rsc', u'ipaselinuxusermapdefault': u'rsc', u'objectclass': u'rsc', u'aci': u'', u'ipahomesrootdir': u'rsc', u'ipamigrationenabled': u'rsc', u'ipaselinuxusermaporder': u'rsc'}
  cn: ipaConfig
  objectclass: nsContainer, top, ipaGuiConfig, ipaConfigObject, ipaUserAuthTypeClass, ipaNameResolutionData
[root@autohv01 ~]# ipa trust-find --all
---------------
1 trust matched
---------------
  dn: cn=pne.qe,cn=ad,cn=trusts,dc=testrelm,dc=test
  Realm name: pne.qe
  Domain NetBIOS name: PNE
  Domain Security Identifier: S-1-5-21-2202318585-426110948-4011710778
  SID blacklist incoming: S-1-0, S-1-1, S-1-2, S-1-3, S-1-5-1, S-1-5-2, S-1-5-3, S-1-5-4, S-1-5-5, S-1-5-6, S-1-5-7, S-1-5-8, S-1-5-9, S-1-5-10, S-1-5-11, S-1-5-12, S-1-5-13, S-1-5-14,
                          S-1-5-15, S-1-5-16, S-1-5-17, S-1-5-18, S-1-5-19, S-1-5-20
  SID blacklist outgoing: S-1-0, S-1-1, S-1-2, S-1-3, S-1-5-1, S-1-5-2, S-1-5-3, S-1-5-4, S-1-5-5, S-1-5-6, S-1-5-7, S-1-5-8, S-1-5-9, S-1-5-10, S-1-5-11, S-1-5-12, S-1-5-13, S-1-5-14,
                          S-1-5-15, S-1-5-16, S-1-5-17, S-1-5-18, S-1-5-19, S-1-5-20
  UPN suffixes: test.qa, pune.in
  ipantsecurityidentifier: S-1-5-21-1074789812-2998660393-2210475529-1003
  ipanttrustdirection: 1
  ipanttrustpartner: pne.qe
  objectclass: ipaNTTrustedDomain, ipaIDobject, top
----------------------------
Number of entries returned 1
----------------------------

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2017:2304