irmd: Pass MTU from IPCP to process for FRCT

FRCT needs to know the MTU for fragmentation. The MTU is now passed
from the layer serving the flow to the process as part of flow
allocation.

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

1 files changed, 16 insertions, 0 deletions

diff --git a/src/irmd/reg/tests/flow_test.c b/src/irmd/reg/tests/flow_test.c
index 7e1c1360..10cd9f3d 100644
--- a/src/irmd/reg/tests/flow_test.c
+++ b/src/irmd/reg/tests/flow_test.c
@@ -122,6 +122,21 @@ static int test_reg_flow_create_has_mpl(void) {
         return TEST_RC_SUCCESS;
 }
 
+static int test_reg_flow_create_has_mtu(void) {
+        struct flow_info info = {
+                .id      = 1,
+                .n_pid   = 1,
+                .n_1_pid = 0,
+                .mtu     = 1400,
+                .qs      = qos_raw,
+                .state   = FLOW_ALLOC_PENDING
+        };
+
+        reg_flow_create(&info); /* assert fail */
+
+        return TEST_RC_SUCCESS;
+}
+
 static int test_reg_flow_update(void)
 {
         struct reg_flow * f;
@@ -210,6 +225,7 @@ static int test_reg_flow_assert_fails(void)
         ret |= test_assert_fail(test_reg_flow_create_has_n_1_pid);
         ret |= test_assert_fail(test_reg_flow_create_wrong_state);
         ret |= test_assert_fail(test_reg_flow_create_has_mpl);
+        ret |= test_assert_fail(test_reg_flow_create_has_mtu);
         ret |= test_assert_fail(test_reg_flow_update_wrong_id);
 
         return ret;