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authordimitri staessens <dimitri.staessens@intec.ugent.be>2016-12-02 17:16:02 +0000
committerdimitri staessens <dimitri.staessens@intec.ugent.be>2016-12-02 17:16:02 +0000
commit08aa32a59162e4383e2782dbf0419c61a0d22524 (patch)
tree941b20c216e21bceb8741704debfe6efc07f2c2f /src/ipcpd/normal/dir.c
parent552f2eb19f04968c0c5ebc7b16f6aa1cb61b6b29 (diff)
parent85b3822a4cc121dcb3d87937c2a44395d8887ae3 (diff)
downloadouroboros-08aa32a59162e4383e2782dbf0419c61a0d22524.tar.gz
ouroboros-08aa32a59162e4383e2782dbf0419c61a0d22524.zip
Merged in sandervrijders/ouroboros/be-normal-dir (pull request #314)
ipcpd: normal: Provide directory for registered names
Diffstat (limited to 'src/ipcpd/normal/dir.c')
-rw-r--r--src/ipcpd/normal/dir.c215
1 files changed, 215 insertions, 0 deletions
diff --git a/src/ipcpd/normal/dir.c b/src/ipcpd/normal/dir.c
new file mode 100644
index 00000000..2b3742d9
--- /dev/null
+++ b/src/ipcpd/normal/dir.c
@@ -0,0 +1,215 @@
+/*
+ * Ouroboros - Copyright (C) 2016
+ *
+ * DIF directory
+ *
+ * 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.
+ */
+
+#define OUROBOROS_PREFIX "directory"
+
+#include <ouroboros/config.h>
+#include <ouroboros/logs.h>
+#include <ouroboros/errno.h>
+
+#include "dir.h"
+#include "ipcp.h"
+#include "ro.h"
+#include "path.h"
+#include "ribmgr.h"
+
+#include <stdlib.h>
+#include <string.h>
+
+char * create_path(char * name)
+{
+ char * path;
+
+ path = pathname_create(RO_DIR);
+ if (path == NULL)
+ return NULL;
+
+ path = pathname_append(path, name);
+ if (path == NULL) {
+ pathname_destroy(path);
+ return NULL;
+ }
+
+ return path;
+}
+
+int dir_init(void)
+{
+ char * path;
+ struct ro_attr attr;
+
+ ro_attr_init(&attr);
+ attr.enrol_sync = true;
+ attr.recv_set = ALL_MEMBERS;
+
+ path = pathname_create(RO_DIR);
+ if (path == NULL)
+ return -1;
+
+ if (ro_create(path, &attr, NULL, 0)) {
+ pathname_destroy(path);
+ LOG_ERR("Failed to create RIB object.");
+ return -1;
+ }
+
+ pathname_destroy(path);
+
+ return 0;
+}
+
+int dir_fini(void)
+{
+ char * path;
+
+ path = pathname_create(RO_DIR);
+ if (path == NULL)
+ return -1;
+
+ ro_delete(path);
+ pathname_destroy(path);
+
+ return 0;
+}
+
+int dir_name_reg(char * name)
+{
+ struct ro_attr attr;
+ char * path;
+ uint64_t * addr;
+
+ pthread_rwlock_rdlock(&ipcpi.state_lock);
+
+ if (ipcp_get_state() != IPCP_RUNNING) {
+ pthread_rwlock_unlock(&ipcpi.state_lock);
+ LOG_ERR("IPCP is not in RUNNING state.");
+ return -1;
+ }
+
+ ro_attr_init(&attr);
+ attr.enrol_sync = true;
+ attr.recv_set = ALL_MEMBERS;
+
+ path = create_path(name);
+ if (path == NULL) {
+ pthread_rwlock_unlock(&ipcpi.state_lock);
+ return -ENOMEM;
+ }
+
+ addr = malloc(sizeof(*addr));
+ if (addr == NULL) {
+ pthread_rwlock_unlock(&ipcpi.state_lock);
+ pathname_destroy(path);
+ return -ENOMEM;
+ }
+ *addr = ribmgr_address();
+
+ if (ro_create(path, &attr, (uint8_t *) addr, sizeof(*addr))) {
+ pthread_rwlock_unlock(&ipcpi.state_lock);
+ pathname_destroy(path);
+ LOG_ERR("Failed to create RIB object.");
+ return -1;
+ }
+
+ pthread_rwlock_unlock(&ipcpi.state_lock);
+
+ LOG_DBG("Registered %s.", name);
+ pathname_destroy(path);
+
+ return 0;
+}
+
+int dir_name_unreg(char * name)
+{
+ char * path;
+
+ pthread_rwlock_rdlock(&ipcpi.state_lock);
+
+ if (ipcp_get_state() != IPCP_RUNNING) {
+ pthread_rwlock_unlock(&ipcpi.state_lock);
+ LOG_ERR("IPCP is not in RUNNING state.");
+ return -1;
+ }
+
+ path = create_path(name);
+ if (path == NULL) {
+ pthread_rwlock_unlock(&ipcpi.state_lock);
+ return -ENOMEM;
+ }
+
+ if (ro_delete(path)) {
+ pthread_rwlock_unlock(&ipcpi.state_lock);
+ pathname_destroy(path);
+ LOG_ERR("No such RIB object exists.");
+ return -1;
+ }
+
+ pthread_rwlock_unlock(&ipcpi.state_lock);
+
+ pathname_destroy(path);
+
+ return 0;
+}
+
+int dir_name_query(char * name)
+{
+ char * path;
+ int ret = -1;
+ uint8_t * ro_data;
+ uint64_t addr;
+ struct dt_const * dtc;
+
+ pthread_rwlock_rdlock(&ipcpi.state_lock);
+
+ if (ipcp_get_state() != IPCP_RUNNING) {
+ pthread_rwlock_unlock(&ipcpi.state_lock);
+ return -1;
+ }
+
+ path = create_path(name);
+ if (path == NULL) {
+ pthread_rwlock_unlock(&ipcpi.state_lock);
+ return -1;
+ }
+
+ if (ro_exists(path)) {
+ if (ro_read(path, &ro_data) < 0) {
+ pathname_destroy(path);
+ return -1;
+ }
+ addr = *((uint64_t *) ro_data);
+ free(ro_data);
+
+ dtc = ribmgr_dt_const();
+ if (dtc == NULL) {
+ pathname_destroy(path);
+ return -1;
+ }
+
+ ret = (addr == ribmgr_address()) ? -1 : 0;
+ }
+
+ pthread_rwlock_unlock(&ipcpi.state_lock);
+
+ pathname_destroy(path);
+
+ return ret;
+}