[src/trunk]: src/sys/net Add cloned-interface-create code to srt open() routi...

[pgoyette <pgoyette%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/b2c8cd6bda7a
branches:  trunk
changeset: 997771:b2c8cd6bda7a
user:      pgoyette <pgoyette%NetBSD.org@localhost>
date:      Tue Mar 26 06:59:11 2019 +0000

description:
Add cloned-interface-create code to srt open() routine so behavior
matches that which is documented in srtconfig(1) man page.  Without
this, srt only works if you first create the srtN interface with
ifconfig(8).

diffstat:

 sys/net/if_srt.c |  8 ++++++--
 1 files changed, 6 insertions(+), 2 deletions(-)

diffs (25 lines):

diff -r a118b83f6f80 -r b2c8cd6bda7a sys/net/if_srt.c
--- a/sys/net/if_srt.c  Tue Mar 26 05:17:17 2019 +0000
+++ b/sys/net/if_srt.c  Tue Mar 26 06:59:11 2019 +0000
@@ -1,8 +1,8 @@
-/* $NetBSD: if_srt.c,v 1.28 2019/03/26 00:23:32 pgoyette Exp $ */
+/* $NetBSD: if_srt.c,v 1.29 2019/03/26 06:59:11 pgoyette Exp $ */
 /* This file is in the public domain. */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: if_srt.c,v 1.28 2019/03/26 00:23:32 pgoyette Exp $");
+__KERNEL_RCSID(0, "$NetBSD: if_srt.c,v 1.29 2019/03/26 06:59:11 pgoyette Exp $");
 
 #ifdef _KERNEL_OPT
 #include "opt_inet.h"
@@ -401,6 +401,10 @@
        if (unit < 0 || unit > SRT_MAXUNIT)
                return ENXIO;
        sc = softcv[unit];
+       if (sc == NULL) {
+               (void)srt_clone_create(&srt_clone, minor(dev));
+               sc = softcv[unit];
+       }
        if (! sc)
                return ENXIO;
        sc->kflags |= SKF_CDEVOPEN;