The branch, master has been updated
       via  2669cecc51f libnet_join: add SPNs for additional-dns-hostnames 
entries
       via  db7560ff0fb docs-xml: add "additional dns hostnames" smb.conf option
       via  3e65f72b141 libnet_join_set_machine_spn: simplify adding uniq spn 
to array
       via  b8e1264ecec libnet_join_set_machine_spn: simplify memory handling
       via  4cbad1eb468 libnet_join_set_machine_spn: improve style and make a 
bit room for indentation
       via  05f7e9a72a1 libnet_join: build dnsHostName from netbios name and 
lp_dnsdomain()
      from  d0f566c4ad3 s4:dirsync: fix interaction of dirsync and extended_dn 
controls

https://git.samba.org/?p=samba.git;a=shortlog;h=master


- Log -----------------------------------------------------------------
commit 2669cecc51f8f7d6675b4dac9b345b3c5a7fc879
Author: Isaac Boukris <[email protected]>
Date:   Fri Sep 13 10:56:10 2019 +0300

    libnet_join: add SPNs for additional-dns-hostnames entries
    
    and set msDS-AdditionalDnsHostName to the specified list.
    
    BUG: https://bugzilla.samba.org/show_bug.cgi?id=14116
    
    Signed-off-by: Isaac Boukris <[email protected]>
    Reviewed-by: Ralph Boehme <[email protected]>
    Reviewed-by: Alexander Bokovoy <[email protected]>
    
    Autobuild-User(master): Ralph Böhme <[email protected]>
    Autobuild-Date(master): Fri Oct 25 10:43:08 UTC 2019 on sn-devel-184

commit db7560ff0fb861552406bb4c422cff55c82f58bf
Author: Isaac Boukris <[email protected]>
Date:   Tue Sep 17 21:38:07 2019 +0300

    docs-xml: add "additional dns hostnames" smb.conf option
    
    BUG: https://bugzilla.samba.org/show_bug.cgi?id=14116
    
    Signed-off-by: Isaac Boukris <[email protected]>
    Reviewed-by: Ralph Boehme <[email protected]>
    Reviewed-by: Alexander Bokovoy <[email protected]>

commit 3e65f72b141a7ee256ae581e5f48f1d930aed76a
Author: Isaac Boukris <[email protected]>
Date:   Wed Sep 18 23:15:57 2019 +0300

    libnet_join_set_machine_spn: simplify adding uniq spn to array
    
    and do not skip adding a fully qualified spn to netbios-aliases
    in case a short spn already existed.
    
    BUG: https://bugzilla.samba.org/show_bug.cgi?id=14116
    
    Signed-off-by: Isaac Boukris <[email protected]>
    Reviewed-by: Ralph Boehme <[email protected]>
    Reviewed-by: Alexander Bokovoy <[email protected]>

commit b8e1264ececf38681ca9a519a51e8336044673f0
Author: Isaac Boukris <[email protected]>
Date:   Wed Sep 18 21:29:47 2019 +0300

    libnet_join_set_machine_spn: simplify memory handling
    
    and avoid a possible memory leak when passing null to
    add_string_to_array() as mem_ctx.
    
    BUG: https://bugzilla.samba.org/show_bug.cgi?id=14116
    
    Signed-off-by: Isaac Boukris <[email protected]>
    Reviewed-by: Ralph Boehme <[email protected]>
    Reviewed-by: Alexander Bokovoy <[email protected]>

commit 4cbad1eb46896bbd74c5b19dbb0a8937ffde90c2
Author: Isaac Boukris <[email protected]>
Date:   Wed Sep 18 20:00:34 2019 +0300

    libnet_join_set_machine_spn: improve style and make a bit room for 
indentation
    
    BUG: https://bugzilla.samba.org/show_bug.cgi?id=14116
    
    Signed-off-by: Isaac Boukris <[email protected]>
    Reviewed-by: Ralph Boehme <[email protected]>
    Reviewed-by: Alexander Bokovoy <[email protected]>

commit 05f7e9a72a1769af9d41b1ca40fe6a14b3f069d1
Author: Isaac Boukris <[email protected]>
Date:   Fri Aug 30 00:22:15 2019 +0300

    libnet_join: build dnsHostName from netbios name and lp_dnsdomain()
    
    This make the join process much more reliable, and avoids "Constraint
    violation" error when the fqdn returned from getaddrinfo has already
    got assigned an SPN.
    
    BUG: https://bugzilla.samba.org/show_bug.cgi?id=14116
    
    Signed-off-by: Isaac Boukris <[email protected]>
    Reviewed-by: Ralph Boehme <[email protected]>
    Reviewed-by: Alexander Bokovoy <[email protected]>

-----------------------------------------------------------------------

Summary of changes:
 .../smbdotconf/base/additionaldnshostnames.xml     |  11 ++
 source3/libnet/libnet_join.c                       | 195 +++++++++++----------
 testprogs/blackbox/test_net_ads.sh                 |  17 +-
 3 files changed, 131 insertions(+), 92 deletions(-)
 create mode 100644 docs-xml/smbdotconf/base/additionaldnshostnames.xml


Changeset truncated at 500 lines:

diff --git a/docs-xml/smbdotconf/base/additionaldnshostnames.xml 
b/docs-xml/smbdotconf/base/additionaldnshostnames.xml
new file mode 100644
index 00000000000..ddc04ee9f81
--- /dev/null
+++ b/docs-xml/smbdotconf/base/additionaldnshostnames.xml
@@ -0,0 +1,11 @@
+<samba:parameter name="additional dns hostnames"
+                 context="G"
+                 type="cmdlist"
+                 xmlns:samba="http://www.samba.org/samba/DTD/samba-doc";>
+ <description>
+        <para> A list of additional DNS names by which this host can be 
identified
+        </para>
+</description>
+<value type="default"><comment>empty string (no additional dns 
names)</comment></value>
+<value type="example"> host2.example.com host3.other.com </value>
+</samba:parameter>
diff --git a/source3/libnet/libnet_join.c b/source3/libnet/libnet_join.c
index 7943bef2cf6..eb8e0ea17f7 100644
--- a/source3/libnet/libnet_join.c
+++ b/source3/libnet/libnet_join.c
@@ -483,6 +483,19 @@ static ADS_STATUS libnet_join_get_machine_spns(TALLOC_CTX 
*mem_ctx,
        return status;
 }
 
+static ADS_STATUS add_uniq_spn(TALLOC_CTX *mem_ctx, const  char *spn,
+                              const char ***array, size_t *num)
+{
+       bool ok = ads_element_in_array(*array, *num, spn);
+       if (!ok) {
+               ok = add_string_to_array(mem_ctx, spn, array, num);
+               if (!ok) {
+                       return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
+               }
+       }
+       return ADS_SUCCESS;
+}
+
 /****************************************************************
  Set a machines dNSHostName and servicePrincipalName attributes
 ****************************************************************/
@@ -490,14 +503,15 @@ static ADS_STATUS libnet_join_get_machine_spns(TALLOC_CTX 
*mem_ctx,
 static ADS_STATUS libnet_join_set_machine_spn(TALLOC_CTX *mem_ctx,
                                              struct libnet_JoinCtx *r)
 {
+       TALLOC_CTX *frame = talloc_stackframe();
        ADS_STATUS status;
        ADS_MODLIST mods;
        fstring my_fqdn;
        const char **spn_array = NULL;
        size_t num_spns = 0;
        char *spn = NULL;
-       bool ok;
        const char **netbios_aliases = NULL;
+       const char **addl_hostnames = NULL;
 
        /* Find our DN */
 
@@ -506,7 +520,7 @@ static ADS_STATUS libnet_join_set_machine_spn(TALLOC_CTX 
*mem_ctx,
                return status;
        }
 
-       status = libnet_join_get_machine_spns(mem_ctx,
+       status = libnet_join_get_machine_spns(frame,
                                              r,
                                              discard_const_p(char **, 
&spn_array),
                                              &num_spns);
@@ -516,134 +530,137 @@ static ADS_STATUS 
libnet_join_set_machine_spn(TALLOC_CTX *mem_ctx,
 
        /* Windows only creates HOST/shortname & HOST/fqdn. */
 
-       spn = talloc_asprintf(mem_ctx, "HOST/%s", r->in.machine_name);
-       if (!spn) {
-               return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
+       spn = talloc_asprintf(frame, "HOST/%s", r->in.machine_name);
+       if (spn == NULL) {
+               status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
+               goto done;
        }
        if (!strupper_m(spn)) {
-               return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
+               status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
+               goto done;
        }
 
-       ok = ads_element_in_array(spn_array, num_spns, spn);
-       if (!ok) {
-               ok = add_string_to_array(spn_array, spn,
-                                        &spn_array, &num_spns);
-               if (!ok) {
-                       return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
-               }
+       status = add_uniq_spn(frame, spn, &spn_array, &num_spns);
+       if (!ADS_ERR_OK(status)) {
+               goto done;
        }
 
-       if (!name_to_fqdn(my_fqdn, r->in.machine_name)
-           || (strchr(my_fqdn, '.') == NULL)) {
-               fstr_sprintf(my_fqdn, "%s.%s", r->in.machine_name,
-                            r->out.dns_domain_name);
-       }
+       fstr_sprintf(my_fqdn, "%s.%s", r->in.machine_name, lp_dnsdomain());
 
        if (!strlower_m(my_fqdn)) {
-               return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
+               status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
+               goto done;
        }
 
-       if (!strequal(my_fqdn, r->in.machine_name)) {
-               spn = talloc_asprintf(mem_ctx, "HOST/%s", my_fqdn);
-               if (!spn) {
-                       return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
+       spn = talloc_asprintf(frame, "HOST/%s", my_fqdn);
+       if (spn == NULL) {
+               status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
+               goto done;
+       }
+
+       status = add_uniq_spn(frame, spn, &spn_array, &num_spns);
+       if (!ADS_ERR_OK(status)) {
+               goto done;
+       }
+
+       for (netbios_aliases = lp_netbios_aliases();
+            netbios_aliases != NULL && *netbios_aliases != NULL;
+            netbios_aliases++) {
+               /*
+                * Add HOST/NETBIOSNAME
+                */
+               spn = talloc_asprintf(frame, "HOST/%s", *netbios_aliases);
+               if (spn == NULL) {
+                       status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
+                       goto done;
+               }
+               if (!strupper_m(spn)) {
+                       status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
+                       goto done;
                }
 
-               ok = ads_element_in_array(spn_array, num_spns, spn);
-               if (!ok) {
-                       ok = add_string_to_array(spn_array, spn,
-                                                &spn_array, &num_spns);
-                       if (!ok) {
-                               return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
-                       }
+               status = add_uniq_spn(frame, spn, &spn_array, &num_spns);
+               if (!ADS_ERR_OK(status)) {
+                       goto done;
                }
-       }
 
-       netbios_aliases = lp_netbios_aliases();
-       if (netbios_aliases != NULL) {
-               for (; *netbios_aliases != NULL; netbios_aliases++) {
-                       /*
-                        * Add HOST/NETBIOSNAME
-                        */
-                       spn = talloc_asprintf(mem_ctx, "HOST/%s", 
*netbios_aliases);
-                       if (spn == NULL) {
-                               TALLOC_FREE(spn);
-                               return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
-                       }
-                       if (!strupper_m(spn)) {
-                               TALLOC_FREE(spn);
-                               return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
-                       }
+               /*
+                * Add HOST/netbiosname.domainname
+                */
+               fstr_sprintf(my_fqdn, "%s.%s",
+                            *netbios_aliases,
+                            lp_dnsdomain());
 
-                       ok = ads_element_in_array(spn_array, num_spns, spn);
-                       if (ok) {
-                               TALLOC_FREE(spn);
-                               continue;
-                       }
-                       ok = add_string_to_array(spn_array, spn,
-                                                &spn_array, &num_spns);
-                       if (!ok) {
-                               TALLOC_FREE(spn);
-                               return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
-                       }
-                       TALLOC_FREE(spn);
+               spn = talloc_asprintf(frame, "HOST/%s", my_fqdn);
+               if (spn == NULL) {
+                       status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
+                       goto done;
+               }
 
-                       /*
-                        * Add HOST/netbiosname.domainname
-                        */
-                       if (r->out.dns_domain_name == NULL) {
-                               continue;
-                       }
-                       fstr_sprintf(my_fqdn, "%s.%s",
-                                    *netbios_aliases,
-                                    r->out.dns_domain_name);
+               status = add_uniq_spn(frame, spn, &spn_array, &num_spns);
+               if (!ADS_ERR_OK(status)) {
+                       goto done;
+               }
+       }
 
-                       spn = talloc_asprintf(mem_ctx, "HOST/%s", my_fqdn);
-                       if (spn == NULL) {
-                               return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
-                       }
+       for (addl_hostnames = lp_additional_dns_hostnames();
+            addl_hostnames != NULL && *addl_hostnames != NULL;
+            addl_hostnames++) {
 
-                       ok = ads_element_in_array(spn_array, num_spns, spn);
-                       if (ok) {
-                               TALLOC_FREE(spn);
-                               continue;
-                       }
-                       ok = add_string_to_array(spn_array, spn,
-                                                &spn_array, &num_spns);
-                       if (!ok) {
-                               TALLOC_FREE(spn);
-                               return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
-                       }
-                       TALLOC_FREE(spn);
+               spn = talloc_asprintf(frame, "HOST/%s", *addl_hostnames);
+               if (spn == NULL) {
+                       status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
+                       goto done;
+               }
+
+               status = add_uniq_spn(frame, spn, &spn_array, &num_spns);
+               if (!ADS_ERR_OK(status)) {
+                       goto done;
                }
        }
 
        /* make sure to NULL terminate the array */
-       spn_array = talloc_realloc(mem_ctx, spn_array, const char *, num_spns + 
1);
+       spn_array = talloc_realloc(frame, spn_array, const char *, num_spns + 
1);
        if (spn_array == NULL) {
-               return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
+               status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
+               goto done;
        }
        spn_array[num_spns] = NULL;
 
        mods = ads_init_mods(mem_ctx);
        if (!mods) {
-               return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
+               status = ADS_ERROR_LDAP(LDAP_NO_MEMORY);
+               goto done;
        }
 
        /* fields of primary importance */
 
        status = ads_mod_str(mem_ctx, &mods, "dNSHostName", my_fqdn);
        if (!ADS_ERR_OK(status)) {
-               return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
+               goto done;
        }
 
        status = ads_mod_strlist(mem_ctx, &mods, "servicePrincipalName",
                                 spn_array);
        if (!ADS_ERR_OK(status)) {
-               return ADS_ERROR_LDAP(LDAP_NO_MEMORY);
+               goto done;
        }
 
-       return ads_gen_mod(r->in.ads, r->out.dn, mods);
+       addl_hostnames = lp_additional_dns_hostnames();
+       if (addl_hostnames != NULL && *addl_hostnames != NULL) {
+               status = ads_mod_strlist(mem_ctx, &mods,
+                                        "msDS-AdditionalDnsHostName",
+                                        addl_hostnames);
+               if (!ADS_ERR_OK(status)) {
+                       goto done;
+               }
+       }
+
+       status = ads_gen_mod(r->in.ads, r->out.dn, mods);
+
+done:
+       TALLOC_FREE(frame);
+       return status;
 }
 
 /****************************************************************
diff --git a/testprogs/blackbox/test_net_ads.sh 
b/testprogs/blackbox/test_net_ads.sh
index cc8345c4624..8bcff006b8e 100755
--- a/testprogs/blackbox/test_net_ads.sh
+++ b/testprogs/blackbox/test_net_ads.sh
@@ -81,7 +81,7 @@ testit "testjoin (dedicated keytab)" $VALGRIND $net_tool ads 
testjoin -kP || fai
 netbios=$(grep "netbios name" $BASEDIR/$WORKDIR/client.conf | cut -f2 -d= | 
awk '{$1=$1};1')
 uc_netbios=$(echo $netbios | tr '[:lower:]' '[:upper:]')
 lc_realm=$(echo $REALM | tr '[:upper:]' '[:lower:]')
-fqdns="$netbios.$lc_realm"
+fqdn="$netbios.$lc_realm"
 
 krb_princ="primary/instance@$REALM"
 testit "test (dedicated keytab) add a fully qualified krb5 principal" 
$VALGRIND $net_tool ads keytab add $krb_princ -U$DC_USERNAME%$DC_PASSWORD 
--option="kerberosmethod=dedicatedkeytab" 
--option="dedicatedkeytabfile=$dedicated_keytab_file" || failed=`expr $failed + 
1`
@@ -99,7 +99,7 @@ testit "test (dedicated keytab) at least one krb5 principal 
created from $machin
 service="nfs"
 testit "test (dedicated keytab) add a $service service to keytab" $VALGRIND 
$net_tool ads keytab add $service -U$DC_USERNAME%$DC_PASSWORD 
--option="kerberosmethod=dedicatedkeytab" 
--option="dedicatedkeytabfile=$dedicated_keytab_file" || failed=`expr $failed + 
1`
 
-search_str="$service/$fqdns@$REALM"
+search_str="$service/$fqdn@$REALM"
 found=`$net_tool ads keytab list -U$DC_USERNAME%$DC_PASSWORD 
--option="kerberosmethod=dedicatedkeytab" 
--option="dedicatedkeytabfile=$dedicated_keytab_file" | grep $search_str | wc 
-l`
 testit "test (dedicated keytab) at least one (long form) krb5 principal 
created from service added is present in keytab" test $found -gt 1 || 
failed=`expr $failed + 1`
 
@@ -202,10 +202,21 @@ base_dn="DC=addom,DC=samba,DC=example,DC=com"
 computers_dn="CN=Computers,$base_dn"
 testit "ldb check for existence of machine account" $ldbsearch 
-U$DC_USERNAME%$DC_PASSWORD -H ldap://$SERVER.$REALM -s base -b 
"cn=$HOSTNAME,$computers_dn" || failed=`expr $failed + 1`
 
-testit "join" $VALGRIND $net_tool ads join -U$DC_USERNAME%$DC_PASSWORD || 
failed=`expr $failed + 1`
+dns_alias1="${netbios}_alias1.other.${lc_realm}"
+dns_alias2="${netbios}_alias2.other2.${lc_realm}"
+testit "join" $VALGRIND $net_tool 
--option=additionaldnshostnames=$dns_alias1,$dns_alias2 ads join 
-U$DC_USERNAME%$DC_PASSWORD || failed=`expr $failed + 1`
 
 testit "testjoin" $VALGRIND $net_tool ads testjoin || failed=`expr $failed + 1`
 
+testit_grep "check dNSHostName" $fqdn $VALGRIND $net_tool ads search -P 
samaccountname=$netbios\$ dNSHostName || failed=`expr $failed + 1`
+testit_grep "check SPN" ${uc_netbios}.${lc_realm} $VALGRIND $net_tool ads 
search -P samaccountname=$netbios\$ servicePrincipalName || failed=`expr 
$failed + 1`
+
+testit_grep "dns alias SPN" $dns_alias1 $VALGRIND $net_tool ads search -P 
samaccountname=$netbios\$ servicePrincipalName || failed=`expr $failed + 1`
+testit_grep "dns alias SPN" $dns_alias2 $VALGRIND $net_tool ads search -P 
samaccountname=$netbios\$ servicePrincipalName || failed=`expr $failed + 1`
+
+testit_grep "dns alias addl" $dns_alias1 $VALGRIND $net_tool ads search -P 
samaccountname=$netbios\$ msDS-AdditionalDnsHostName || failed=`expr $failed + 
1`
+testit_grep "dns alias addl" $dns_alias2 $VALGRIND $net_tool ads search -P 
samaccountname=$netbios\$ msDS-AdditionalDnsHostName || failed=`expr $failed + 
1`
+
 ##Goodbye...
 testit "leave" $VALGRIND $net_tool ads leave -U$DC_USERNAME%$DC_PASSWORD || 
failed=`expr $failed + 1`
 


-- 
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