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From 8e382375715232130f7b96d3098a7c7a0d6cef7d Mon Sep 17 00:00:00 2001
From: Jakub Hrozek <jhrozek@redhat.com>
Date: Tue, 28 Apr 2015 13:48:42 +0200
Subject: [PATCH 207/207] subdomains: Inherit cleanup period and tokengroup
 settings from parent domain

Allows the administrator to extend the functionality of
ldap_purge_cache_timeout, ldap_user_principal and ldap_use_tokengroups to
the subdomains.

This is a less intrusive way of achieving:
    https://fedorahosted.org/sssd/ticket/2627

Reviewed-by: Pavel Reichl <preichl@redhat.com>
(cherry picked from commit 9b162bf39ef75629f54ffa1d0bd5f9c13119b650)

Conflicts:
	src/tests/cmocka/test_sdap.c
---
 src/man/sssd.conf.5.xml            |   9 +++
 src/providers/ad/ad_subdomains.c   |   4 +
 src/providers/ipa/ipa_subdomains.c |   4 +
 src/providers/ldap/sdap.c          |  58 ++++++++++++++
 src/providers/ldap/sdap.h          |   4 +
 src/tests/cmocka/test_sdap.c       | 158 +++++++++++++++++++++++++++++++++++++
 6 files changed, 237 insertions(+)

diff --git a/src/man/sssd.conf.5.xml b/src/man/sssd.conf.5.xml
index 19995be..ef82dcd 100644
--- a/src/man/sssd.conf.5.xml
+++ b/src/man/sssd.conf.5.xml
@@ -489,6 +489,15 @@
                             ignore_group_members
                         </para>
                         <para>
+                            ldap_purge_cache_timeout
+                        </para>
+                        <para>
+                            ldap_use_tokengroups
+                        </para>
+                        <para>
+                            ldap_user_principal
+                        </para>
+                        <para>
                             Example:
                             <programlisting>
 subdomain_inherit = ldap_purge_cache_timeout
diff --git a/src/providers/ad/ad_subdomains.c b/src/providers/ad/ad_subdomains.c
index 3c61d13..554da69 100644
--- a/src/providers/ad/ad_subdomains.c
+++ b/src/providers/ad/ad_subdomains.c
@@ -180,6 +180,10 @@ ad_subdom_ad_ctx_new(struct be_ctx *be_ctx,
         return EFAULT;
     }
 
+    sdap_inherit_options(subdom->parent->sd_inherit,
+                         id_ctx->sdap_id_ctx->opts,
+                         ad_id_ctx->sdap_id_ctx->opts);
+
     /* Set up the ID mapping object */
     ad_id_ctx->sdap_id_ctx->opts->idmap_ctx =
         id_ctx->sdap_id_ctx->opts->idmap_ctx;
diff --git a/src/providers/ipa/ipa_subdomains.c b/src/providers/ipa/ipa_subdomains.c
index 3148389..e529454 100644
--- a/src/providers/ipa/ipa_subdomains.c
+++ b/src/providers/ipa/ipa_subdomains.c
@@ -228,6 +228,10 @@ ipa_ad_ctx_new(struct be_ctx *be_ctx,
         return EFAULT;
     }
 
+    sdap_inherit_options(subdom->parent->sd_inherit,
+                         id_ctx->sdap_id_ctx->opts,
+                         ad_id_ctx->sdap_id_ctx->opts);
+
     ret = sdap_id_setup_tasks(be_ctx,
                               ad_id_ctx->sdap_id_ctx,
                               sdom,
diff --git a/src/providers/ldap/sdap.c b/src/providers/ldap/sdap.c
index bc9f8b3..9b65940 100644
--- a/src/providers/ldap/sdap.c
+++ b/src/providers/ldap/sdap.c
@@ -243,6 +243,64 @@ int sdap_extend_map_with_list(TALLOC_CTX *mem_ctx,
     return EOK;
 }
 
+static void sdap_inherit_basic_options(char **inherit_opt_list,
+                                       struct dp_option *parent_opts,
+                                       struct dp_option *subdom_opts)
+{
+    int inherit_options[] = {
+        SDAP_CACHE_PURGE_TIMEOUT,
+        SDAP_AD_USE_TOKENGROUPS,
+        SDAP_OPTS_BASIC     /* sentinel */
+    };
+    int i;
+
+    for (i = 0; inherit_options[i] != SDAP_OPTS_BASIC; i++) {
+        dp_option_inherit(inherit_opt_list,
+                          inherit_options[i],
+                          parent_opts,
+                          subdom_opts);
+    }
+}
+
+static void sdap_inherit_user_options(char **inherit_opt_list,
+                                      struct sdap_attr_map *parent_user_map,
+                                      struct sdap_attr_map *child_user_map)
+{
+    int inherit_options[] = {
+        SDAP_AT_USER_PRINC,
+        SDAP_OPTS_USER          /* sentinel */
+    };
+    int i;
+    int opt_index;
+    bool inherit_option;
+
+    for (i = 0; inherit_options[i] != SDAP_OPTS_USER; i++) {
+        opt_index = inherit_options[i];
+
+        inherit_option = string_in_list(parent_user_map[opt_index].opt_name,
+                                        inherit_opt_list,
+                                        false);
+        if (inherit_option == false) {
+            continue;
+        }
+
+        sdap_copy_map_entry(parent_user_map, child_user_map, opt_index);
+    }
+}
+
+void sdap_inherit_options(char **inherit_opt_list,
+                          struct sdap_options *parent_sdap_opts,
+                          struct sdap_options *child_sdap_opts)
+{
+    sdap_inherit_basic_options(inherit_opt_list,
+                               parent_sdap_opts->basic,
+                               child_sdap_opts->basic);
+
+    sdap_inherit_user_options(inherit_opt_list,
+                              parent_sdap_opts->user_map,
+                              child_sdap_opts->user_map);
+}
+
 int sdap_get_map(TALLOC_CTX *memctx,
                  struct confdb_ctx *cdb,
                  const char *conf_path,
diff --git a/src/providers/ldap/sdap.h b/src/providers/ldap/sdap.h
index c0e9ff9..19fc039 100644
--- a/src/providers/ldap/sdap.h
+++ b/src/providers/ldap/sdap.h
@@ -491,6 +491,10 @@ int sdap_extend_map_with_list(TALLOC_CTX *mem_ctx,
                               struct sdap_attr_map **_map,
                               size_t *_new_size);
 
+void sdap_inherit_options(char **inherit_opt_list,
+                          struct sdap_options *parent_sdap_opts,
+                          struct sdap_options *child_sdap_opts);
+
 int sdap_get_map(TALLOC_CTX *memctx,
                  struct confdb_ctx *cdb,
                  const char *conf_path,
diff --git a/src/tests/cmocka/test_sdap.c b/src/tests/cmocka/test_sdap.c
index d1e6959..5488694 100644
--- a/src/tests/cmocka/test_sdap.c
+++ b/src/tests/cmocka/test_sdap.c
@@ -792,6 +792,150 @@ static void test_sdap_copy_map_entry_null_name(void **state)
     assert_null(uuid_val);
 }
 
+struct test_sdap_inherit_ctx {
+    struct sdap_options *parent_sdap_opts;
+    struct sdap_options *child_sdap_opts;
+};
+
+struct sdap_options *mock_sdap_opts(TALLOC_CTX *mem_ctx)
+{
+    int ret;
+    struct sdap_options *opts;
+
+    opts = talloc_zero(mem_ctx, struct sdap_options);
+    assert_non_null(opts);
+
+    ret = sdap_copy_map(opts, rfc2307_user_map,
+                        SDAP_OPTS_USER, &opts->user_map);
+    assert_int_equal(ret, ERR_OK);
+
+    ret = dp_copy_defaults(opts, default_basic_opts,
+                           SDAP_OPTS_BASIC, &opts->basic);
+    assert_int_equal(ret, ERR_OK);
+
+    return opts;
+}
+
+static void test_sdap_inherit_option_setup(void **state)
+{
+    int ret;
+    struct test_sdap_inherit_ctx *test_ctx;
+
+    assert_true(leak_check_setup());
+
+    test_ctx = talloc_zero(global_talloc_context,
+                           struct test_sdap_inherit_ctx);
+    assert_non_null(test_ctx);
+
+    test_ctx->child_sdap_opts = talloc_zero(test_ctx, struct sdap_options);
+
+    test_ctx->parent_sdap_opts = mock_sdap_opts(test_ctx);
+    assert_non_null(test_ctx->parent_sdap_opts);
+    test_ctx->child_sdap_opts = mock_sdap_opts(test_ctx);
+    assert_non_null(test_ctx->child_sdap_opts);
+
+    test_ctx->parent_sdap_opts->user_map[SDAP_AT_USER_PRINC].name = \
+                                                  discard_const("test_princ");
+
+    ret = dp_opt_set_int(test_ctx->parent_sdap_opts->basic,
+                         SDAP_CACHE_PURGE_TIMEOUT, 123);
+    assert_int_equal(ret, EOK);
+
+    *state = test_ctx;
+}
+
+static void test_sdap_inherit_option_teardown(void **state)
+{
+    struct test_sdap_inherit_ctx *test_ctx = \
+                talloc_get_type_abort(*state, struct test_sdap_inherit_ctx);
+
+    talloc_free(test_ctx);
+    assert_true(leak_check_teardown());
+}
+
+static void test_sdap_inherit_option_null(void **state)
+{
+    struct test_sdap_inherit_ctx *test_ctx = \
+                talloc_get_type_abort(*state, struct test_sdap_inherit_ctx);
+    int val;
+
+    val = dp_opt_get_int(test_ctx->child_sdap_opts->basic,
+                         SDAP_CACHE_PURGE_TIMEOUT);
+    assert_int_equal(val, 10800);
+
+    sdap_inherit_options(NULL,
+                         test_ctx->parent_sdap_opts,
+                         test_ctx->child_sdap_opts);
+
+    val = dp_opt_get_int(test_ctx->child_sdap_opts->basic,
+                         SDAP_CACHE_PURGE_TIMEOUT);
+    assert_int_equal(val, 10800);
+}
+
+static void test_sdap_inherit_option_notset(void **state)
+{
+    struct test_sdap_inherit_ctx *test_ctx = \
+                talloc_get_type_abort(*state, struct test_sdap_inherit_ctx);
+    int val;
+    const char *inherit_options[] = { "ldap_use_tokengroups", NULL };
+
+    val = dp_opt_get_int(test_ctx->child_sdap_opts->basic,
+                         SDAP_CACHE_PURGE_TIMEOUT);
+    assert_int_equal(val, 10800);
+
+    /* parent has nondefault, but it's not supposed to be inherited */
+    sdap_inherit_options(discard_const(inherit_options),
+                         test_ctx->parent_sdap_opts,
+                         test_ctx->child_sdap_opts);
+
+    val = dp_opt_get_int(test_ctx->child_sdap_opts->basic,
+                         SDAP_CACHE_PURGE_TIMEOUT);
+    assert_int_equal(val, 10800);
+}
+
+static void test_sdap_inherit_option_basic(void **state)
+{
+    struct test_sdap_inherit_ctx *test_ctx = \
+                talloc_get_type_abort(*state, struct test_sdap_inherit_ctx);
+    int val;
+    const char *inherit_options[] = { "ldap_purge_cache_timeout", NULL };
+
+    val = dp_opt_get_int(test_ctx->child_sdap_opts->basic,
+                         SDAP_CACHE_PURGE_TIMEOUT);
+    assert_int_equal(val, 10800);
+
+    /* parent has nondefault, but it's not supposed to be inherited */
+    sdap_inherit_options(discard_const(inherit_options),
+                         test_ctx->parent_sdap_opts,
+                         test_ctx->child_sdap_opts);
+
+    val = dp_opt_get_int(test_ctx->child_sdap_opts->basic,
+                         SDAP_CACHE_PURGE_TIMEOUT);
+    assert_int_equal(val, 123);
+}
+
+static void test_sdap_inherit_option_user(void **state)
+{
+    struct test_sdap_inherit_ctx *test_ctx = \
+                talloc_get_type_abort(*state, struct test_sdap_inherit_ctx);
+    const char *inherit_options[] = { "ldap_user_principal", NULL };
+
+    assert_string_equal(
+            test_ctx->child_sdap_opts->user_map[SDAP_AT_USER_PRINC].name,
+            "krbPrincipalName");
+
+    /* parent has nondefault, but it's not supposed to be inherited */
+    sdap_inherit_options(discard_const(inherit_options),
+                         test_ctx->parent_sdap_opts,
+                         test_ctx->child_sdap_opts);
+
+    assert_string_equal(
+            test_ctx->child_sdap_opts->user_map[SDAP_AT_USER_PRINC].name,
+            "test_princ");
+
+    talloc_free(test_ctx->child_sdap_opts->user_map[SDAP_AT_USER_PRINC].name);
+}
+
 int main(int argc, const char *argv[])
 {
     poptContext pc;
@@ -845,6 +989,20 @@ int main(int argc, const char *argv[])
         unit_test_setup_teardown(test_sdap_copy_map_entry_null_name,
                                  copy_map_entry_test_setup,
                                  copy_map_entry_test_teardown),
+
+        /* Option inherit tests */
+        unit_test_setup_teardown(test_sdap_inherit_option_null,
+                                 test_sdap_inherit_option_setup,
+                                 test_sdap_inherit_option_teardown),
+        unit_test_setup_teardown(test_sdap_inherit_option_notset,
+                                 test_sdap_inherit_option_setup,
+                                 test_sdap_inherit_option_teardown),
+        unit_test_setup_teardown(test_sdap_inherit_option_basic,
+                                 test_sdap_inherit_option_setup,
+                                 test_sdap_inherit_option_teardown),
+        unit_test_setup_teardown(test_sdap_inherit_option_user,
+                                 test_sdap_inherit_option_setup,
+                                 test_sdap_inherit_option_teardown),
     };
 
     /* Set debug level to invalid value so we can deside if -d 0 was used. */
-- 
2.1.0