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Diffstat (limited to 'src/ipcpd/unicast/pol/flat.c')
-rw-r--r--src/ipcpd/unicast/pol/flat.c87
1 files changed, 87 insertions, 0 deletions
diff --git a/src/ipcpd/unicast/pol/flat.c b/src/ipcpd/unicast/pol/flat.c
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+++ b/src/ipcpd/unicast/pol/flat.c
@@ -0,0 +1,87 @@
+/*
+ * Ouroboros - Copyright (C) 2016 - 2019
+ *
+ * Policy for flat addresses in a distributed way
+ *
+ * Dimitri Staessens <dimitri.staessens@ugent.be>
+ * Sander Vrijders <sander.vrijders@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., http://www.fsf.org/about/contact/.
+ */
+
+#if defined(__linux__) || defined(__CYGWIN__)
+#define _DEFAULT_SOURCE
+#else
+#define _POSIX_C_SOURCE 200112L
+#endif
+
+#define OUROBOROS_PREFIX "flat-addr-auth"
+
+#include <ouroboros/logs.h>
+#include <ouroboros/errno.h>
+#include <ouroboros/time_utils.h>
+#include <ouroboros/utils.h>
+
+#include "ipcp.h"
+#include "flat.h"
+
+#include <time.h>
+#include <stdlib.h>
+#include <math.h>
+#include <string.h>
+#include <assert.h>
+
+#define NAME_LEN 8
+
+struct {
+ uint8_t addr_size;
+} flat;
+
+#define INVALID_ADDRESS 0
+
+struct pol_addr_auth_ops flat_ops = {
+ .init = flat_init,
+ .fini = flat_fini,
+ .address = flat_address
+};
+
+int flat_init(const void * info)
+{
+ flat.addr_size = *((uint8_t *) info);
+
+ if (flat.addr_size != 4) {
+ log_err("Flat address policy mandates 4 byte addresses.");
+ return -1;
+ }
+
+ return 0;
+}
+
+int flat_fini(void)
+{
+ return 0;
+}
+
+uint64_t flat_address(void)
+{
+ struct timespec t;
+ uint32_t addr;
+
+ clock_gettime(CLOCK_REALTIME, &t);
+ srand(t.tv_nsec);
+
+ addr = (rand() % (RAND_MAX - 1) + 1) & 0xFFFFFFFF;
+
+ return addr;
+}