lib: Revise app flow allocation

This revises the application flow allocator to use the flow_info
struct/message between the components. Revises the messaging to move
the use protocol buffers to its own source (serdes-irm).

Adds a timeout to the IRMd flow allocator to make sure flow
allocations don't hang forever (this was previously taken care of by
the sanitize thread).

Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks>
Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>

1 files changed, 61 insertions, 0 deletions

diff --git a/src/lib/pb/model.proto b/src/lib/pb/model.proto
new file mode 100644
index 00000000..f1e401f9
--- /dev/null
+++ b/src/lib/pb/model.proto
@@ -0,0 +1,61 @@
+/*
+ * Ouroboros - Copyright (C) 2016 - 2024
+ *
+ * Model description messages
+ *
+ *    Dimitri Staessens <dimitri@ouroboros.rocks>
+ *    Sander Vrijders   <sander@ouroboros.rocks>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * version 2.1 as published by the Free Software Foundation.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., http://www.fsf.org/about/contact/.
+ */
+
+syntax = "proto2";
+
+message qosspec_msg {
+        required uint32 delay        = 1; /* In ms.                   */
+        required uint64 bandwidth    = 2; /* In bits/s.               */
+        required uint32 availability = 3; /* Class of 9s.             */
+        required uint32 loss         = 4; /* Packet loss.             */
+        required uint32 ber          = 5; /* Bit error rate, ppb.     */
+        required uint32 in_order     = 6; /* In-order delivery.       */
+        required uint32 max_gap      = 7; /* In ms.                   */
+        required uint32 cypher_s     = 8; /* Crypto strength in bits. */
+        required uint32 timeout      = 9; /* Timeout in ms.           */
+}
+
+message flow_info_msg {
+        required uint32      id      = 1;
+        required uint32      n_pid   = 2;
+        required uint32      n_1_pid = 3;
+        required uint32      mpl     = 4;
+        required uint32      state   = 5;
+        required qosspec_msg qos     = 6;
+}
+
+message name_info_msg {
+        required string name   = 1;
+        required uint32 pol_lb = 2;
+}
+
+message layer_info_msg {
+        required string name          = 1;
+        required uint32 dir_hash_algo = 2;
+}
+
+message ipcp_info_msg {
+        required uint32 type  = 1;
+        required string name  = 2;
+        required uint32 pid   = 3;
+        required uint32 state = 4;
+}