MINOR: connection: add a new flag CO_FL_FDLESS on fd-less connections
QUIC connections do not use a file descriptor, instead they use the
quic equivalent which is the quic_conn. A number of our historical
functions at the connection level continue to unconditionally touch
the file descriptor and this may have consequences once QUIC starts
to be used.
This patch adds a new flag on QUIC connections, CO_FL_FDLESS, to
mention that the connection doesn't have a file descriptor, hence the
FD-based API must never be used on them.
From now on it will be possible to intrument existing functions to
panic when this flag is present.
diff --git a/include/haproxy/connection-t.h b/include/haproxy/connection-t.h
index 1327333..634452b 100644
--- a/include/haproxy/connection-t.h
+++ b/include/haproxy/connection-t.h
@@ -116,6 +116,8 @@
CO_FL_ERROR = 0x00100000, /* a fatal error was reported */
CO_FL_NOTIFY_DONE = 0x001C0000, /* any xprt shut/error flags above needs to be reported */
+ CO_FL_FDLESS = 0x00200000, /* this connection doesn't use any FD (e.g. QUIC) */
+
/* flags used to report connection status updates */
CO_FL_WAIT_L4_CONN = 0x00400000, /* waiting for L4 to be connected */
CO_FL_WAIT_L6_CONN = 0x00800000, /* waiting for L6 to be connected (eg: SSL) */
diff --git a/src/quic_sock.c b/src/quic_sock.c
index f3faa64..8086ff6 100644
--- a/src/quic_sock.c
+++ b/src/quic_sock.c
@@ -101,7 +101,7 @@
if (!sockaddr_alloc(&cli_conn->src, saddr, sizeof *saddr))
goto out_free_conn;
- cli_conn->flags |= CO_FL_ADDR_FROM_SET;
+ cli_conn->flags |= CO_FL_ADDR_FROM_SET | CO_FL_FDLESS;
qc->conn = cli_conn;
cli_conn->qc = qc;