1 files changed, 161 insertions, 0 deletions
diff --git a/src/lib/serdes-oep.c b/src/lib/serdes-oep.c
new file mode 100644
index 00000000..8a836b3b
--- /dev/null
+++ b/src/lib/serdes-oep.c
@@ -0,0 +1,161 @@
+/*
+ * Ouroboros - Copyright (C) 2016 - 2024
+ *
+ * Ouroboros Enrollment Protocol - serialization/deserialization
+ *
+ *    Dimitri Staessens <dimitri@ouroboros.rocks>
+ *    Sander Vrijders   <sander@ouroboros.rocks>
+ *
+ * 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/.
+ */
+
+#define _POSIX_C_SOURCE 200112L
+
+#include <ouroboros/protobuf.h>
+#include <ouroboros/serdes-oep.h>
+
+ssize_t enroll_req_ser(const struct enroll_req * req,
+                       buffer_t                  buf)
+{
+        enroll_req_msg_t * msg;
+        ssize_t            sz;
+
+        msg = enroll_req_s_to_msg(req);
+        if (msg == NULL)
+                goto fail_msg;
+
+        sz = enroll_req_msg__get_packed_size(msg);
+        if (sz < 0 || (size_t) sz > buf.len)
+                goto fail_pack;
+
+        enroll_req_msg__pack(msg, buf.data);
+
+        enroll_req_msg__free_unpacked(msg, NULL);
+
+        return sz;
+
+ fail_pack:
+        enroll_req_msg__free_unpacked(msg, NULL);
+ fail_msg:
+    return -1;
+}
+
+int enroll_req_des(struct enroll_req * req,
+                   const buffer_t      buf)
+{
+        enroll_req_msg_t * msg;
+
+        msg = enroll_req_msg__unpack(NULL, buf.len, buf.data);
+        if (msg == NULL)
+                goto fail_unpack;
+
+        if (msg->id.len != ENROLL_ID_LEN)
+                goto fail_id;
+
+        *req = enroll_req_msg_to_s(msg);
+
+        enroll_req_msg__free_unpacked(msg, NULL);
+
+        return 0;
+
+ fail_id:
+        enroll_req_msg__free_unpacked(msg, NULL);
+ fail_unpack:
+        return -1;
+}
+
+ssize_t enroll_resp_ser(const struct enroll_resp * resp,
+                        buffer_t                   buf)
+{
+        enroll_resp_msg_t * msg;
+        ssize_t             sz;
+
+        msg = enroll_resp_s_to_msg(resp);
+        if (msg == NULL)
+                goto fail_msg;
+
+        sz = enroll_resp_msg__get_packed_size(msg);
+        if (sz < 0 || (size_t) sz > buf.len)
+                goto fail_pack;
+
+        enroll_resp_msg__pack(msg, buf.data);
+
+        enroll_resp_msg__free_unpacked(msg, NULL);
+
+        return sz;
+
+ fail_pack:
+        enroll_resp_msg__free_unpacked(msg, NULL);
+ fail_msg:
+        return -1;
+}
+
+int enroll_resp_des(struct enroll_resp * resp,
+                    const buffer_t       buf)
+{
+        enroll_resp_msg_t * msg;
+
+        msg = enroll_resp_msg__unpack(NULL, buf.len, buf.data);
+        if (msg == NULL)
+                return -1;
+
+        *resp = enroll_resp_msg_to_s(msg);
+
+        enroll_resp_msg__free_unpacked(msg, NULL);
+
+        return 0;
+}
+
+ssize_t enroll_ack_ser(const struct enroll_ack * ack,
+                       buffer_t                  buf)
+{
+        enroll_ack_msg_t * msg;
+        ssize_t            sz;
+
+        msg = enroll_ack_s_to_msg(ack);
+        if (msg == NULL)
+                goto fail_msg;
+
+        sz = enroll_ack_msg__get_packed_size(msg);
+        if (sz < 0 || (size_t) sz > buf.len)
+                goto fail_pack;
+
+        enroll_ack_msg__pack(msg, buf.data);
+
+        enroll_ack_msg__free_unpacked(msg, NULL);
+
+        return sz;
+
+ fail_pack:
+        enroll_ack_msg__free_unpacked(msg, NULL);
+ fail_msg:
+        return -1;
+
+}
+
+int enroll_ack_des(struct enroll_ack * ack,
+                   const buffer_t      buf)
+{
+        enroll_ack_msg_t * msg;
+
+        msg = enroll_ack_msg__unpack(NULL, buf.len, buf.data);
+        if (msg == NULL)
+                return -1;
+
+        *ack = enroll_ack_msg_to_s(msg);
+
+        enroll_ack_msg__free_unpacked(msg, NULL);
+
+        return 0;
+}