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Diffstat (limited to 'src/ipcpd/normal/cdap_flow.c')
-rw-r--r--src/ipcpd/normal/cdap_flow.c153
1 files changed, 153 insertions, 0 deletions
diff --git a/src/ipcpd/normal/cdap_flow.c b/src/ipcpd/normal/cdap_flow.c
new file mode 100644
index 00000000..2895af0d
--- /dev/null
+++ b/src/ipcpd/normal/cdap_flow.c
@@ -0,0 +1,153 @@
+/*
+ * Ouroboros - Copyright (C) 2016 - 2017
+ *
+ * Normal IPC Process - Authenticated CDAP Flow Allocator
+ *
+ * Sander Vrijders <sander.vrijders@ugent.be>
+ * Dimitri Staessens <dimitri.staessens@ugent.be>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * 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 "cdap-flow"
+
+#include <ouroboros/config.h>
+#include <ouroboros/dev.h>
+#include <ouroboros/logs.h>
+
+#include "cdap_flow.h"
+
+#include <stdlib.h>
+#include <assert.h>
+
+static void cdap_flow_destroy(struct cdap_flow * flow)
+{
+ assert(flow);
+
+ if (flow->ci != NULL)
+ cdap_destroy(flow->ci);
+
+ if (flow->info != NULL) {
+ if (flow->info->name != NULL)
+ free(flow->info->name);
+ if (flow->info->data != NULL)
+ free(flow->info->data);
+ }
+
+ free(flow);
+}
+
+struct cdap_flow * cdap_flow_arr(int fd,
+ int resp,
+ enum pol_cacep pc,
+ const struct cacep_info * info)
+{
+ struct cdap_flow * flow;
+
+ if (flow_alloc_resp(fd, resp) < 0) {
+ log_err("Could not respond to new flow.");
+ return NULL;
+ }
+
+ if (resp)
+ return NULL;
+
+ flow = malloc(sizeof(*flow));
+ if (flow == NULL) {
+ log_err("Failed to malloc.");
+ return NULL;
+ }
+
+ flow->fd = fd;
+ flow->ci = NULL;
+
+ flow->info = cacep_auth_wait(fd, pc, info);
+ if (flow->info == NULL) {
+ log_err("Other side failed to authenticate.");
+ cdap_flow_destroy(flow);
+ return NULL;
+ }
+
+ flow->ci = cdap_create(fd);
+ if (flow->ci == NULL) {
+ log_err("Failed to create CDAP instance.");
+ cdap_flow_destroy(flow);
+ return NULL;
+ }
+
+ return flow;
+}
+
+struct cdap_flow * cdap_flow_alloc(const char * dst_name,
+ const char * ae_name,
+ qosspec_t * qs,
+ enum pol_cacep pc,
+ const struct cacep_info * info)
+{
+ struct cdap_flow * flow;
+ int fd;
+
+ log_dbg("Allocating flow to %s.", dst_name);
+
+ if (dst_name == NULL || ae_name == NULL) {
+ log_err("Not enough info to establish flow.");
+ return NULL;
+ }
+
+ fd = flow_alloc(dst_name, ae_name, qs);
+ if (fd < 0) {
+ log_err("Failed to allocate flow to %s.", dst_name);
+ return NULL;
+ }
+
+ if (flow_alloc_res(fd)) {
+ log_err("Flow allocation to %s failed.", dst_name);
+ return NULL;
+ }
+
+ flow = malloc(sizeof(*flow));
+ if (flow == NULL) {
+ log_err("Failed to malloc.");
+ flow_dealloc(fd);
+ return NULL;
+ }
+
+ flow->fd = fd;
+ flow->ci = NULL;
+
+ flow->info = cacep_auth(fd, pc, info);
+ if (flow->info == NULL) {
+ log_err("Failed to authenticate.");
+ cdap_flow_dealloc(flow);
+ return NULL;
+ }
+
+ flow->ci = cdap_create(fd);
+ if (flow->ci == NULL) {
+ log_err("Failed to create CDAP instance.");
+ cdap_flow_dealloc(flow);
+ return NULL;
+ }
+
+ return flow;
+}
+
+void cdap_flow_dealloc(struct cdap_flow * flow)
+{
+ int fd = flow->fd;
+
+ cdap_flow_destroy(flow);
+
+ flow_dealloc(fd);
+}