LDAP: Move sdap_create_search_base from ldap to sdap code

The function shouldn't be placed in the LDAP tree, but in the SDAP tree
to make it usable from tests without linking to libraries that are
normally linked from LDAP provider (such as confdb)

Reviewed-by: Lukáš Slebodník <lslebodn@redhat.com>

1 files changed, 61 insertions, 0 deletions

diff --git a/src/providers/ldap/sdap.c b/src/providers/ldap/sdap.c
index 97bc14b87..5aa7ff7ca 100644
--- a/src/providers/ldap/sdap.c
+++ b/src/providers/ldap/sdap.c
@@ -1031,6 +1031,67 @@ static char *get_naming_context(TALLOC_CTX *mem_ctx,
     return naming_context;
 }
 
+errno_t
+sdap_create_search_base(TALLOC_CTX *mem_ctx,
+                        const char *unparsed_base,
+                        int scope,
+                        const char *filter,
+                        struct sdap_search_base **_base)
+{
+    struct sdap_search_base *base;
+    TALLOC_CTX *tmp_ctx;
+    errno_t ret;
+    struct ldb_dn *ldn;
+    struct ldb_context *ldb;
+
+    tmp_ctx = talloc_new(NULL);
+    if (!tmp_ctx) {
+        ret = ENOMEM;
+        goto done;
+    }
+
+    /* Create a throwaway LDB context for validating the DN */
+    ldb = ldb_init(tmp_ctx, NULL);
+    if (!ldb) {
+        ret = ENOMEM;
+        goto done;
+    }
+
+    base = talloc_zero(tmp_ctx, struct sdap_search_base);
+    if (base == NULL) {
+        ret = ENOMEM;
+        goto done;
+    }
+
+    base->basedn = talloc_strdup(base, unparsed_base);
+    if (base->basedn == NULL) {
+        ret = ENOMEM;
+        goto done;
+    }
+
+    /* Validate the basedn */
+    ldn = ldb_dn_new(tmp_ctx, ldb, unparsed_base);
+    if (!ldn) {
+        ret = ENOMEM;
+        goto done;
+    }
+
+    if (!ldb_dn_validate(ldn)) {
+        DEBUG(SSSDBG_CRIT_FAILURE, "Invalid base DN [%s]\n", unparsed_base);
+        ret = EINVAL;
+        goto done;
+    }
+
+    base->scope = scope;
+    base->filter = filter;
+
+    *_base = talloc_steal(mem_ctx, base);
+    ret = EOK;
+done:
+    talloc_free(tmp_ctx);
+    return ret;
+}
+
 static errno_t sdap_set_search_base(struct sdap_options *opts,
                                     struct sdap_domain *sdom,
                                     enum sdap_basic_opt class,