tap: Completely de-serialise input message batches

Until now, messages would be passed to protocol handlers in a single
batch only if they happened to be dequeued in a row. Packets
interleaved between different connections would result in multiple
calls to the same protocol handler for a single connection.

Instead, keep track of incoming packet descriptors, arrange them in
sequences, and call protocol handlers only as we completely sorted
input messages in batches.

Signed-off-by: Stefano Brivio <sbrivio@redhat.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/udp.h b/udp.h
index bdafcaf..c20f936 100644
--- a/udp.h
+++ b/udp.h
@@ -6,8 +6,8 @@
 void udp_sock_handler(struct ctx *c, union epoll_ref ref, uint32_t events,
 		      struct timespec *now);
 int udp_tap_handler(struct ctx *c, int af, void *addr,
-		    struct tap_msg *msg, int count, struct timespec *now);
-int udp_sock_init(struct ctx *c);
+		    struct tap_l4_msg *msg, int count, struct timespec *now);
+int udp_sock_init(struct ctx *c, struct timespec *now);
 void udp_timer(struct ctx *c, struct timespec *ts);
 void udp_update_l2_buf(unsigned char *eth_d, unsigned char *eth_s,
 		       uint32_t *ip_da);