ipcpd: Move alloc race mitigation to common source

All flow allocator code was duplicating the mitigation for a race
where the IRMd response for the flow allocation with a new flow fd was
arriving before the response to the flow_req_arr. This is now moved to
the ipcp common source.

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

1 files changed, 9 insertions, 0 deletions

diff --git a/src/ipcpd/ipcp.h b/src/ipcpd/ipcp.h
index 2d0e39de..9b08d66e 100644
--- a/src/ipcpd/ipcp.h
+++ b/src/ipcpd/ipcp.h
@@ -136,6 +136,15 @@ enum ipcp_state ipcp_get_state(void);
 int             ipcp_parse_arg(int    argc,
                                char * argv[]);
 
+/* Helper functions to handle races during flow allocation */
+int             ipcp_wait_flow_req_arr(const uint8_t * dst,
+                                       qosspec_t       qs,
+                                       time_t          mpl,
+                                       const void *    data,
+                                       size_t          len);
+
+int             ipcp_wait_flow_resp(const int fd);
+
 /* Helper functions for directory entries, could be moved */
 uint8_t *       ipcp_hash_dup(const uint8_t * hash);