Allow using flatname for subdomain home dir template

https://fedorahosted.org/sssd/ticket/1609

6 files changed, 33 insertions, 9 deletions

diff --git a/src/man/sssd.conf.5.xml b/src/man/sssd.conf.5.xml
index 7bcccee8..6a1292c6 100644
--- a/src/man/sssd.conf.5.xml
+++ b/src/man/sssd.conf.5.xml
@@ -1638,7 +1638,15 @@ override_homedir = /home/%u
                         <para>
                             Use this homedir as default value for all subdomains
                             within this domain. See <emphasis>override_homedir</emphasis>
-                            for info about possible values.
+                            for info about possible values. In addition to those, the
+                            expansion below can only be used with
+                            <emphasis>subdomain_homedir</emphasis>.
+                            <variablelist>
+                                <varlistentry>
+                                    <term>%F</term>
+                                    <listitem><para>flat (NetBIOS) name of a subdomain.</para></listitem>
+                                </varlistentry>
+                            </variablelist>
                         </para>
                         <para>
                             The value can be overridden by
diff --git a/src/providers/ipa/ipa_s2n_exop.c b/src/providers/ipa/ipa_s2n_exop.c
index 7e5d0c14..64ee7752 100644
--- a/src/providers/ipa/ipa_s2n_exop.c
+++ b/src/providers/ipa/ipa_s2n_exop.c
@@ -624,7 +624,8 @@ static void ipa_s2n_get_user_done(struct tevent_req *subreq)
                                                    attrs->a.user.pw_name,
                                                    attrs->a.user.pw_uid,
                                                    NULL,
-                                                   state->dom->name);
+                                                   state->dom->name,
+                                                   state->dom->flat_name);
                 if (homedir == NULL) {
                     ret = ENOMEM;
                     goto done;
diff --git a/src/responder/nss/nsssrv_cmd.c b/src/responder/nss/nsssrv_cmd.c
index c391ed53..df7255bb 100644
--- a/src/responder/nss/nsssrv_cmd.c
+++ b/src/responder/nss/nsssrv_cmd.c
@@ -183,10 +183,10 @@ static const char *get_homedir_override(TALLOC_CTX *mem_ctx,
      */
     if (dom->override_homedir) {
         return expand_homedir_template(mem_ctx, dom->override_homedir,
-                                       name, uid, homedir, dom->name);
+                                       name, uid, homedir, dom->name, NULL);
     } else if (nctx->override_homedir) {
         return expand_homedir_template(mem_ctx, nctx->override_homedir,
-                                       name, uid, homedir, dom->name);
+                                       name, uid, homedir, dom->name, NULL);
     }
 
     if (!homedir || *homedir == '\0') {
@@ -195,10 +195,12 @@ static const char *get_homedir_override(TALLOC_CTX *mem_ctx,
          */
         if (dom->fallback_homedir) {
             return expand_homedir_template(mem_ctx, dom->fallback_homedir,
-                                           name, uid, homedir, dom->name);
+                                           name, uid, homedir,
+                                           dom->name, NULL);
         } else if (nctx->fallback_homedir) {
             return expand_homedir_template(mem_ctx, nctx->fallback_homedir,
-                                           name, uid, homedir, dom->name);
+                                           name, uid, homedir,
+                                           dom->name, NULL);
         }
     }
 
diff --git a/src/responder/pac/pacsrv_utils.c b/src/responder/pac/pacsrv_utils.c
index 824daa62..c868b107 100644
--- a/src/responder/pac/pacsrv_utils.c
+++ b/src/responder/pac/pacsrv_utils.c
@@ -796,7 +796,7 @@ errno_t get_pwd_from_pac(TALLOC_CTX *mem_ctx,
     if (dom->subdomain_homedir) {
         pwd->pw_dir = expand_homedir_template(pwd, dom->subdomain_homedir,
                                               lname, pwd->pw_uid, NULL,
-                                              dom->name);
+                                              dom->name, dom->flat_name);
         if (pwd->pw_dir == NULL) {
             ret = ENOMEM;
             goto done;
diff --git a/src/util/sss_nss.c b/src/util/sss_nss.c
index ac36a9ba..2b733832 100644
--- a/src/util/sss_nss.c
+++ b/src/util/sss_nss.c
@@ -24,7 +24,8 @@
 
 char *expand_homedir_template(TALLOC_CTX *mem_ctx, const char *template,
                               const char *username, uint32_t uid,
-                              const char *original, const char *domain)
+                              const char *original, const char *domain,
+                              const char *flatname)
 {
     char *copy;
     char *p;
@@ -105,6 +106,7 @@ char *expand_homedir_template(TALLOC_CTX *mem_ctx, const char *template,
                 result = talloc_asprintf_append(result, "%s%s@%s", p,
                                                 username, domain);
                 break;
+
             case 'o':
                 if (original == NULL) {
                     DEBUG(SSSDBG_CRIT_FAILURE,
@@ -117,6 +119,16 @@ char *expand_homedir_template(TALLOC_CTX *mem_ctx, const char *template,
                 result = talloc_asprintf_append(result, "%s%s", p, orig);
                 break;
 
+            case 'F':
+                if (flatname == NULL) {
+                    DEBUG(SSSDBG_CRIT_FAILURE, ("Cannot expand domain name "
+                                                "template because domain flat "
+                                                "name is empty.\n"));
+                    goto done;
+                }
+                result = talloc_asprintf_append(result, "%s%s", p, flatname);
+                break;
+
             case '%':
                 result = talloc_asprintf_append(result, "%s%%", p);
                 break;
diff --git a/src/util/sss_nss.h b/src/util/sss_nss.h
index 0520035f..6dcdbaef 100644
--- a/src/util/sss_nss.h
+++ b/src/util/sss_nss.h
@@ -27,5 +27,6 @@
 
 char *expand_homedir_template(TALLOC_CTX *mem_ctx, const char *template,
                               const char *username, uint32_t uid,
-                              const char *original, const char *domain);
+                              const char *original, const char *domain,
+                              const char *flatname);
 #endif