On Tue, Sep 15, 2015 at 07:25:17AM +0200, Molnár Domokos wrote:
> On 09/14/2015 03:08 PM, Pavel Březina wrote:
> >On 09/11/2015 02:40 PM, Molnár Domokos wrote:
> 
> >>Full log attached.
> >>"Molnár Domokos" <kret...@freemail.hu> írta:
> >>
> >>
> >>    "Pavel Březina" <pbrez...@redhat.com> írta:
> >>
> >>        On 09/09/2015 09:31 PM, Molnár Domokos wrote:
> >>         > I have a working IPA server and a working client config on an 
> >> OpenSuse
> >>         > 13.2 with the following versions:
> >>         > nappali:~ # rpm -qa |grep sssd
> >>         > sssd-tools-1.12.2-3.4.1.i586
> >>         > sssd-krb5-1.12.2-3.4.1.i586
> >>         > python-sssd-config-1.12.2-3.4.1.i586
> >>         > sssd-ipa-1.12.2-3.4.1.i586
> >>         > sssd-1.12.2-3.4.1.i586
> >>         > sssd-dbus-1.12.2-3.4.1.i586
> >>         > sssd-krb5-common-1.12.2-3.4.1.i586
> >>         > sssd-ldap-1.12.2-3.4.1.i586
> >>         > sssd is confihured for nss, pam, sudo
> >>         > There is a test sudo rule defined in the ipa server, which 
> >> applies to
> >>         > user "doma".  However when the user tries to use sudo the rule 
> >> does not
> >>         > work.
> >>         > doma@nappali:/home/doma> sudo ls
> >>         > doma&#39;s password:
> >>         > doma is not allowed to run sudo on nappali.  This incident will 
> >> be reported.
> >>         > The corresponding log in the sssd_sudo.log is this:
> >>         > (Wed Sep  9 21:25:25 2015) [sssd[sudo]] [sss_cmd_get_version] 
> >> (0x0200):
> >>         > Received client version [1].
> >>         > (Wed Sep  9 21:25:25 2015) [sssd[sudo]] [sss_cmd_get_version] 
> >> (0x0200):
> >>         > Offered version [1].
> >>         > (Wed Sep  9 21:25:25 2015) [sssd[sudo]] 
> >> [sss_parse_name_for_domains]
> >>         > (0x0200): name &#39;doma&#39; matched without domain, user is 
> >> doma
> >>         > (Wed Sep  9 21:25:25 2015) [sssd[sudo]] 
> >> [sss_parse_name_for_domains]
> >>         > (0x0200): name &#39;doma&#39; matched without domain, user is 
> >> doma
> >>         > (Wed Sep  9 21:25:25 2015) [sssd[sudo]] 
> >> [sudosrv_cmd_parse_query_done]
> >>         > (0x0200): Requesting default options for [doma] from [<ALL>]
> >>         > (Wed Sep  9 21:25:25 2015) [sssd[sudo]] [sudosrv_get_user] 
> >> (0x0200):
> >>         > Requesting info about [doma@szilva]
> >>         > (Wed Sep  9 21:25:25 2015) [sssd[sudo]]
> >>         > [sudosrv_get_sudorules_query_cache] (0x0200): Searching sysdb 
> >> with
> >>         > 
> >> [(&(objectClass=sudoRule)(|(sudoUser=ALL)(name=defaults)(sudoUser=doma)(sudoUser=#1816400003)(sudoUser=%ipausers)(sudoUser=%picture_access)(sudoUser=%doma)(sudoUser=+*))(&(dataExpireTimestamp<=1441826725)))]
> >>         > (Wed Sep  9 21:25:25 2015) [sssd[sudo]]
> >>         > [sudosrv_get_sudorules_query_cache] (0x0200): Searching sysdb 
> >> with
> >>         > [(&(objectClass=sudoRule)(|(name=defaults)))]
> >>         > (Wed Sep  9 21:25:25 2015) [sssd[sudo]] 
> >> [sss_parse_name_for_domains]
> >>         > (0x0200): name &#39;doma&#39; matched without domain, user is 
> >> doma
> >>         > (Wed Sep  9 21:25:25 2015) [sssd[sudo]] 
> >> [sss_parse_name_for_domains]
> >>         > (0x0200): name &#39;doma&#39; matched without domain, user is 
> >> doma
> >>         > (Wed Sep  9 21:25:25 2015) [sssd[sudo]] 
> >> [sudosrv_cmd_parse_query_done]
> >>         > (0x0200): Requesting rules for [doma] from [<ALL>]
> >>         > (Wed Sep  9 21:25:25 2015) [sssd[sudo]] [sudosrv_get_user] 
> >> (0x0200):
> >>         > Requesting info about [doma@szilva]
> >>         > (Wed Sep  9 21:25:25 2015) [sssd[sudo]]
> >>         > [sudosrv_get_sudorules_query_cache] (0x0200): Searching sysdb 
> >> with
> >>         > 
> >> [(&(objectClass=sudoRule)(|(sudoUser=ALL)(name=defaults)(sudoUser=doma)(sudoUser=#1816400003)(sudoUser=%ipausers)(sudoUser=%picture_access)(sudoUser=%doma)(sudoUser=+*))(&(dataExpireTimestamp<=1441826725)))]
> >>         > (Wed Sep  9 21:25:25 2015) [sssd[sudo]]
> >>         > [sudosrv_get_sudorules_query_cache] (0x0200): Searching sysdb 
> >> with
> >>         > 
> >> [(&(objectClass=sudoRule)(|(sudoUser=ALL)(sudoUser=doma)(sudoUser=#1816400003)(sudoUser=%ipausers)(sudoUser=%picture_access)(sudoUser=%doma)(sudoUser=+*)))]
> >>         > (Wed Sep  9 21:25:30 2015) [sssd[sudo]] [client_recv] (0x0200): 
> >> Client
> >>         > disconnected!
> >>         > This seems perfectly OK with one exception. The query against 
> >> the sysdb
> >>         > does not find the entry. This is strange because the entry is 
> >> there.
> >>         > Log in sssd.log:
> >>         > (Wed Sep  2 08:52:13 2015) [sssd] [sysdb_domain_init_internal] 
> >> (0x0200):
> >>         > DB File for szilva: /var/lib/sss/db/cache_szilva.ldb
> >>         > So we know that the sysdb is /var/lib/sss/db/cache_szilva.ldb
> >>         > Running the exact same query seen above in the sssd_sudo.log 
> >> against the
> >>         > db returns:
> >>         > ldbsearch -H /var/lib/sss/db/cache_szilva.ldb
> >>         > 
> >> "(&(objectClass=sudoRule)(|(sudoUser=ALL)(sudoUser=doma)(sudoUser=#1816400003)(sudoUser=%ipausers)(sudoUser=%picture_access)(sudoUser=%doma)(sudoUser=+*)))"
> >>         > asq: Unable to register control with rootdse!
> >>         > # record 1
> >>         > dn: name=Doma_ls,cn=sudorules,cn=custom,cn=szilva,cn=sysdb
> >>         > cn: Doma_ls
> >>         > dataExpireTimestamp: 1441830262
> >>         > entryUSN: 20521
> >>         > name: Doma_ls
> >>         > objectClass: sudoRule
> >>         > originalDN: cn=Doma_ls,ou=sudoers,dc=szilva
> >>         > sudoCommand: ls
> >>         > sudoHost: nappali.szilva
> >>         > sudoRunAsGroup: ALL
> >>         > sudoRunAsUser: ALL
> >>         > sudoUser: doma
> >>         > distinguishedName: 
> >> name=Doma_ls,cn=sudorules,cn=custom,cn=szilva,cn=sysdb
> >>         > # returned 1 records
> >>         > # 1 entries
> >>         > # 0 referrals
> >>         > This confirms that the entry is indeed there in the db. Why is 
> >> it found
> >>         > with ldbsearch and why does sssd_sudo not find it?
> >>         > I am pretty much stuck with this one. Anyone has an idea?
> >>         >
> >>         >
> >>        Hi,
> >>        this is strange. Can you provide the logs with debug level set to 
> >> 0x3ff0
> >>
> >>        please? Can you also send it as an attachment? Thanks!
> >>
> >>    Sure. Here it is. Now I can see that the rule is returned. The
> >>    question is why the rule does not match. Anyway much better :)
> 
> >
> >Hi, thanks for the logs. Since the rule is returned, we will get more 
> >information from sudo logs. Can you please enable sudo logging by putting 
> >the following line into /etc/sudo.conf?
> >
> >Debug sudo /var/log/sudo_debug all@trace
> >
> >Run sudo and send us /var/log/sudo_debug? Thanks
> 
> Thanks for the tip with the proper debug syntax - I was unable to get a 
> single log item out of sudo before.
> 
> I think I have found something. This is the relevant part of the output of 
> all@debug (you need this not trace I think):
> 
> Sep 14 22:13:39 sudo[2314]   username=doma
> Sep 14 22:13:39 sudo[2314] domainname=NULL
> Sep 14 22:13:39 sudo[2314] state |= USERMATCH
> Sep 14 22:13:39 sudo[2314] Received 1 rule(s)
> Sep 14 22:13:39 sudo[2314] -> sudo_sss_filter_result @ ./sssd.c:175
> Sep 14 22:13:39 sudo[2314] in_res=0xb7c9c1b8, count=1, act=INCLUDE
> Sep 14 22:13:39 sudo[2314] emalloc: cnt=1
> Sep 14 22:13:39 sudo[2314] -> sudo_sss_result_filterp @ ./sssd.c:648
> Sep 14 22:13:39 sudo[2314] -> sudo_sss_check_host @ ./sssd.c:556
> Sep 14 22:13:39 sudo[2314] val[0]=nappali.szilva
> Sep 14 22:13:39 sudo[2314] -> addr_matches @ ./match_addr.c:206
> Sep 14 22:13:39 sudo[2314] -> addr_matches_if @ ./match_addr.c:61
> Sep 14 22:13:39 sudo[2314] <- addr_matches_if @ ./match_addr.c:71 := false
> Sep 14 22:13:39 sudo[2314] IP address nappali.szilva matches local host: 
> false @ addr_matches() ./match_addr.c:217
> Sep 14 22:13:39 sudo[2314] <- addr_matches @ ./match_addr.c:218 := false
> Sep 14 22:13:39 sudo[2314] -> netgr_matches @ ./match.c:941
> Sep 14 22:13:39 sudo[2314] netgroup appali.szilva has no leading &#39;+&#39;
> Sep 14 22:13:39 sudo[2314] <- netgr_matches @ ./match.c:953 := false
> Sep 14 22:13:39 sudo[2314] -> hostname_matches @ ./match.c:776
> Sep 14 22:13:39 sudo[2314] host nappali matches sudoers pattern 
> nappali.szilva: false @ hostname_matches() ./match.c:788
> Sep 14 22:13:39 sudo[2314] <- hostname_matches @ ./match.c:789 := false
> Sep 14 22:13:39 sudo[2314] sssd/ldap sudoHost &#39;nappali.szilva&#39; ... not
> Sep 14 22:13:39 sudo[2314] <- sudo_sss_check_host @ ./sssd.c:591 := false
> Sep 14 22:13:39 sudo[2314] <- sudo_sss_result_filterp @ ./sssd.c:654 := 0
> Sep 14 22:13:39 sudo[2314] reallocating result: 0xb7cb1900 (count: 1 -> 0)
> Sep 14 22:13:39 sudo[2314] <- sudo_sss_filter_result @ ./sssd.c:221 := 
> 0xb7c9e410
> Sep 14 22:13:39 sudo[2314] u_sss_result=(0xb7c9c1b8, 1) => 
> f_sss_result=(0xb7c9e410, 0)
> Sep 14 22:13:39 sudo[2314] <- sudo_sss_result_get @ ./sssd.c:728 := 0xb7c9e410
> Sep 14 22:13:39 sudo[2314] searching SSSD/LDAP for sudoers entries
> Sep 14 22:13:39 sudo[2314] Done with LDAP searches
> 
> 
> And here is the code from match.c.
> 
> bool
> hostname_matches(const char *shost, const char *lhost, const char *pattern)
> {
>     debug_decl(hostname_matches, SUDO_DEBUG_MATCH)
>     const char *host;
>     bool rc;
> 
>     host = strchr(pattern, &#39;.&#39;) != NULL ? lhost : shost;
>     if (has_meta(pattern)) {
>     rc = !fnmatch(pattern, host, FNM_CASEFOLD);
>     } else {
>     rc = !strcasecmp(host, pattern);
>     }
>     sudo_debug_printf(SUDO_DEBUG_DEBUG|SUDO_DEBUG_LINENO,
>     "host %s matches sudoers pattern %s: %s",
>     host, pattern, rc ? "true" : "false");
>     debug_return_bool(rc);
> }
> 
> By the look of it it should match. I tried to find out how shost and lhost 
> get their values - these are macros to a member of the sudo_user struct but 
> that part is not debugged. Only thing I can confirm is that I do not get the
> 
> log_warning(MSG_ONLY, N_("unable to resolve host %s"), user_host);
> 
> from line 816 of sudoers.c.
> 
> I also checked the hosts file and there I do have the
> 
> 192.168.110.3 nappali nappali.szilva
> 
> entry.
> 
> Still stuck whit this.

What is the output of 'hostname' ?

I don't think sudo canonicalizes it..

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