Create kdcinfo and kpasswdinfo file at startup

1 files changed, 40 insertions, 1 deletions

diff --git a/src/providers/krb5/krb5_common.c b/src/providers/krb5/krb5_common.c
index 746b3f3c6..1423b0890 100644
--- a/src/providers/krb5/krb5_common.c
+++ b/src/providers/krb5/krb5_common.c
@@ -31,6 +31,8 @@
 #include "providers/dp_backend.h"
 #include "providers/krb5/krb5_common.h"
 
+#define DUMMY_ADDRESS "255.255.255.255"
+
 struct dp_option default_krb5_opts[] = {
     { "krb5_kdcip", DP_OPT_STRING, NULL_STRING, NULL_STRING },
     { "krb5_realm", DP_OPT_STRING, NULL_STRING, NULL_STRING },
@@ -287,7 +289,6 @@ static void krb5_resolve_callback(void *private_data, struct fo_server *server)
     return;
 }
 
-
 int krb5_service_init(TALLOC_CTX *memctx, struct be_ctx *ctx,
                       const char *service_name, const char *servers,
                       const char *realm, struct krb5_service **_service)
@@ -302,6 +303,7 @@ int krb5_service_init(TALLOC_CTX *memctx, struct be_ctx *ctx,
     char *server_spec;
     char *endptr;
     struct servent *servent;
+    struct tevent_req *req;
 
     tmp_ctx = talloc_new(memctx);
     if (!tmp_ctx) {
@@ -403,6 +405,14 @@ int krb5_service_init(TALLOC_CTX *memctx, struct be_ctx *ctx,
         goto done;
     }
 
+    req = be_resolve_server_send(memctx, ctx->ev, ctx, service_name);
+    if (req == NULL) {
+        DEBUG(1, ("be_resolve_server_send failed.\n"));
+        ret = ENOMEM;
+        goto done;
+    }
+    tevent_req_set_callback(req, krb5_init_resolve_done, service);
+
     ret = EOK;
 
 done:
@@ -453,3 +463,32 @@ void krb5_finalize(struct tevent_context *ev,
 
     sig_term(signum);
 }
+
+void krb5_init_resolve_done(struct tevent_req *req)
+{
+    struct krb5_service *krb5_service  = tevent_req_callback_data(req,
+                                                           struct krb5_service);
+    int ret;
+    struct fo_server *srv;
+    const char *service_name;
+
+    ret = be_resolve_server_recv(req, &srv);
+    talloc_zfree(req);
+    if (ret) {
+        DEBUG(1, ("be_resolve_server request failed [%d][%s]. "
+                  "Creating dummy info file.\n", ret, strerror(ret)));
+
+        service_name = krb5_service->name;
+        if (strcmp(service_name, "IPA") == 0) {
+            service_name = SSS_KRB5KDC_FO_SRV;
+        }
+        ret = write_krb5info_file(krb5_service->realm, DUMMY_ADDRESS,
+                                  service_name);
+        if (ret != EOK) {
+            DEBUG(2, ("write_krb5info_file failed, "
+                      "authentication might fail.\n"));
+        }
+    }
+
+    return;
+}