[src/trunk]: src/sys/net eliminate stf(4)'s dependency on gif(4).

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

details:   https://anonhg.NetBSD.org/src/rev/988d1feaa678
branches:  trunk
changeset: 817357:988d1feaa678
user:      knakahara <knakahara%NetBSD.org@localhost>
date:      Thu Aug 18 11:38:58 2016 +0000

description:
eliminate stf(4)'s dependency on gif(4).

stf(4) depends on not gif(4) but ip_encap.

diffstat:

 sys/net/if_stf.c |  18 ++++--------------
 sys/net/if_stf.h |   4 +++-
 2 files changed, 7 insertions(+), 15 deletions(-)

diffs (82 lines):

diff -r 430bb61fa0fb -r 988d1feaa678 sys/net/if_stf.c
--- a/sys/net/if_stf.c  Thu Aug 18 11:34:09 2016 +0000
+++ b/sys/net/if_stf.c  Thu Aug 18 11:38:58 2016 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: if_stf.c,v 1.98 2016/08/07 17:38:34 christos Exp $     */
+/*     $NetBSD: if_stf.c,v 1.99 2016/08/18 11:38:58 knakahara Exp $    */
 /*     $KAME: if_stf.c,v 1.62 2001/06/07 22:32:16 itojun Exp $ */
 
 /*
@@ -75,12 +75,11 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: if_stf.c,v 1.98 2016/08/07 17:38:34 christos Exp $");
+__KERNEL_RCSID(0, "$NetBSD: if_stf.c,v 1.99 2016/08/18 11:38:58 knakahara Exp $");
 
 #ifdef _KERNEL_OPT
 #include "opt_inet.h"
 #include "stf.h"
-#include "gif.h"       /*XXX*/
 #endif
 
 #ifndef INET6
@@ -116,7 +115,6 @@
 
 #include <netinet/ip6.h>
 #include <netinet6/ip6_var.h>
-#include <netinet6/in6_gif.h>
 #include <netinet6/in6_var.h>
 #include <netinet/ip_ecn.h>
 
@@ -126,10 +124,6 @@
 
 #include <net/bpf.h>
 
-#if NGIF > 0
-#include <net/if_gif.h>
-#endif
-
 #include "ioconf.h"
 
 #define IN6_IS_ADDR_6TO4(x)    (ntohs((x)->s6_addr16[0]) == 0x2002)
@@ -150,11 +144,7 @@
 struct if_clone stf_cloner =
     IF_CLONE_INITIALIZER("stf", stf_clone_create, stf_clone_destroy);
 
-#if NGIF > 0
-extern int ip_gif_ttl; /*XXX*/
-#else
-static int ip_gif_ttl = 40;    /*XXX*/
-#endif
+static int ip_stf_ttl = STF_TTL;
 
 extern struct domain inetdomain;
 
@@ -440,7 +430,7 @@
            &ip->ip_src, sizeof(ip->ip_src));
        memcpy(&ip->ip_dst, in4, sizeof(ip->ip_dst));
        ip->ip_p = IPPROTO_IPV6;
-       ip->ip_ttl = ip_gif_ttl;        /*XXX*/
+       ip->ip_ttl = ip_stf_ttl;
        ip->ip_len = htons(m->m_pkthdr.len);
        if (ifp->if_flags & IFF_LINK1)
                ip_ecn_ingress(ECN_ALLOWED, &ip->ip_tos, &tos);
diff -r 430bb61fa0fb -r 988d1feaa678 sys/net/if_stf.h
--- a/sys/net/if_stf.h  Thu Aug 18 11:34:09 2016 +0000
+++ b/sys/net/if_stf.h  Thu Aug 18 11:38:58 2016 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: if_stf.h,v 1.6 2016/01/28 00:28:11 knakahara Exp $     */
+/*     $NetBSD: if_stf.h,v 1.7 2016/08/18 11:38:58 knakahara Exp $     */
 /*     $KAME: if_stf.h,v 1.3 2000/03/25 07:23:33 sumikawa Exp $        */
 
 /*
@@ -33,6 +33,8 @@
 #ifndef _NET_IF_STF_H_
 #define _NET_IF_STF_H_
 
+#define STF_TTL                40
+
 #define STF_MTU                (1280)  /* Default MTU */
 #define        STF_MTU_MIN     (1280)  /* Minimum MTU */
 #define        STF_MTU_MAX     (8192)  /* Maximum MTU */