DNS sites support - SRV lookup plugin interface

https://fedorahosted.org/sssd/ticket/1032

Introduces two new error codes:
- ERR_SRV_NOT_FOUND
- ERR_SRV_LOOKUP_ERROR

Since id_provider is authoritative in case of SRV plugin choise,
ability to override the selected pluging during runtime is not
desirable. We rely on the fact that id_provider is initialized
before all other providers, thus the plugin is set correctly.

1 files changed, 7 insertions, 0 deletions

diff --git a/src/providers/dp_backend.h b/src/providers/dp_backend.h
index 01d1e43be..1b8a59e60 100644
--- a/src/providers/dp_backend.h
+++ b/src/providers/dp_backend.h
@@ -211,6 +211,13 @@ int be_fo_service_add_callback(TALLOC_CTX *memctx,
                                struct be_ctx *ctx, const char *service_name,
                                be_svc_callback_fn_t *fn, void *private_data);
 int be_fo_get_server_count(struct be_ctx *ctx, const char *service_name);
+
+void be_fo_set_srv_lookup_plugin(struct be_ctx *ctx,
+                                 fo_srv_lookup_plugin_send_t send_fn,
+                                 fo_srv_lookup_plugin_recv_t recv_fn,
+                                 void *pvt,
+                                 const char *plugin_name);
+
 int be_fo_add_srv_server(struct be_ctx *ctx,
                          const char *service_name,
                          const char *query_service,