ipcpd: initial IPC processes

Basic functions for implementation of IPC processes, and
implementation of core functions of the shim IPCP over UDP.  Updates
to the build system to compile these IPC processes, as well as some
fixes in the irmd (rudimentary capturing exit signals) and some fixes
in the library, mainly relating to the messaging.

Basic implementation of creation / bootstrapping / deletion of the
shim UDP. Placeholders for other functions.

1 files changed, 91 insertions, 0 deletions

diff --git a/src/ipcpd/ipcp-data.h b/src/ipcpd/ipcp-data.h
new file mode 100644
index 00000000..d51f3730
--- /dev/null
+++ b/src/ipcpd/ipcp-data.h
@@ -0,0 +1,91 @@
+/*
+ * Ouroboros - Copyright (C) 2016
+ *
+ * Utitilies for building IPC processes
+ *
+ *    Dimitri Staessens <dimitri.staessens@intec.ugent.be>
+ *    Sander Vrijders   <sander.vrijders@intec.ugent.be>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef IPCPD_IPCP_DATA_H
+#define IPCPD_IPCP_DATA_H
+
+#include <ouroboros/common.h>
+#include <ouroboros/instance_name.h>
+#include <ouroboros/list.h>
+#include <ouroboros/flow.h>
+#include <sys/types.h>
+#include <pthread.h>
+
+#include "ipcp-ops.h"
+
+struct ipcp_data {
+        instance_name_t   * iname;
+        enum ipcp_type      type;
+
+        struct shm_du_map * dum;
+
+        struct list_head    registry;
+        pthread_mutex_t     reg_lock;
+
+        struct list_head    flows;
+        pthread_mutex_t     flow_lock;
+
+        struct list_head    directory;
+        pthread_mutex_t     dir_lock;
+
+        pthread_mutex_t     lock;
+};
+
+struct ipcp_data * ipcp_data_create();
+struct ipcp_data * ipcp_data_init(struct ipcp_data * dst,
+                                  instance_name_t *  iname,
+                                  enum ipcp_type     ipcp_type);
+void               ipcp_data_destroy(struct ipcp_data * data);
+
+int          ipcp_data_add_reg_entry(struct ipcp_data * data,
+                                     char *             ap_name,
+                                     uint32_t           reg_ap_id);
+int          ipcp_data_del_reg_entry(struct ipcp_data * data,
+                                     uint32_t           reg_ap_id);
+int          ipcp_data_add_dir_entry(struct ipcp_data * data,
+                                     char *             ap_name,
+                                     uint64_t           addr);
+int          ipcp_data_del_dir_entry(struct ipcp_data * data,
+                                     const char *       ap_name,
+                                     uint64_t           addr);
+bool         ipcp_data_is_in_registry(struct ipcp_data * data,
+                                      const char *       ap_name);
+uint32_t     ipcp_data_get_reg_ap_id(struct ipcp_data * data,
+                                     const char *       ap_name);
+const char * ipcp_data_get_reg_ap_name(struct ipcp_data * data,
+                                       uint32_t           reg_ap_id);
+bool         ipcp_data_is_in_directory(struct ipcp_data * data,
+                                       const char *       ap_name);
+uint64_t     ipcp_data_get_addr(struct ipcp_data * data,
+                                const char *       ap_name);
+bool         ipcp_data_has_flow(struct ipcp_data * data,
+                                uint32_t           port_id);
+bool         ipcp_data_has_flow_s(struct ipcp_data * data,
+                                  uint32_t           port_id,
+                                  enum flow_state    state);
+int          ipcp_data_add_flow(struct ipcp_data * data,
+                                flow_t *           flow);
+int          ipcp_data_remove_flow(struct ipcp_data * data,
+                                   uint32_t           port_id);
+
+#endif /* IPCPD_IPCP_DATA_H */