[src/trunk]: src/sys/netipsec Split the timer handler into small functions (NFC)

[ozaki-r <ozaki-r%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/7e4df4235339
branches:  trunk
changeset: 353998:7e4df4235339
user:      ozaki-r <ozaki-r%NetBSD.org@localhost>
date:      Wed May 31 09:53:35 2017 +0000

description:
Split the timer handler into small functions (NFC)

diffstat:

 sys/netipsec/key.c |  67 ++++++++++++++++++++++++++++++-----------------------
 1 files changed, 38 insertions(+), 29 deletions(-)

diffs (123 lines):

diff -r 66213d82908d -r 7e4df4235339 sys/netipsec/key.c
--- a/sys/netipsec/key.c        Wed May 31 09:52:43 2017 +0000
+++ b/sys/netipsec/key.c        Wed May 31 09:53:35 2017 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: key.c,v 1.158 2017/05/31 09:52:43 ozaki-r Exp $        */
+/*     $NetBSD: key.c,v 1.159 2017/05/31 09:53:35 ozaki-r Exp $        */
 /*     $FreeBSD: src/sys/netipsec/key.c,v 1.3.2.3 2004/02/14 22:23:23 bms Exp $        */
 /*     $KAME: key.c,v 1.191 2001/06/27 10:46:49 sakane Exp $   */
 
@@ -32,7 +32,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: key.c,v 1.158 2017/05/31 09:52:43 ozaki-r Exp $");
+__KERNEL_RCSID(0, "$NetBSD: key.c,v 1.159 2017/05/31 09:53:35 ozaki-r Exp $");
 
 /*
  * This code is referd to RFC 2367
@@ -4477,23 +4477,10 @@
        return 1;       /* Match! */
 }
 
-/*
- * time handler.
- * scanning SPD and SAD to check status for each entries,
- * and do to remove or to expire.
- */
 static void
-key_timehandler_work(struct work *wk, void *arg)
+key_timehandler_spd(time_t now)
 {
        u_int dir;
-       int s;
-       time_t now = time_uptime;
-
-       s = splsoftnet();
-       mutex_enter(softnet_lock);
-
-       /* SPD */
-    {
        struct secpolicy *sp, *nextsp;
 
        for (dir = 0; dir < IPSEC_DIR_MAX; dir++) {
@@ -4519,10 +4506,11 @@
                        }
                }
        }
-    }
-
-       /* SAD */
-    {
+}
+
+static void
+key_timehandler_sad(time_t now)
+{
        struct secashead *sah, *nextsah;
        struct secasvar *sav, *nextsav;
 
@@ -4661,11 +4649,12 @@
                         */
                }
        }
-    }
-
+}
+
+static void
+key_timehandler_acq(time_t now)
+{
 #ifndef IPSEC_NONBLOCK_ACQUIRE
-       /* ACQ tree */
-    {
        struct secacq *acq, *nextacq;
 
     restart:
@@ -4679,12 +4668,13 @@
                }
        }
        mutex_exit(&key_mtx);
-    }
 #endif
-
+}
+
+static void
+key_timehandler_spacq(time_t now)
+{
 #ifdef notyet
-       /* SP ACQ tree */
-    {
        struct secspacq *acq, *nextacq;
 
        LIST_FOREACH_SAFE(acq, &spacqtree, chain, nextacq) {
@@ -4694,8 +4684,27 @@
                        kmem_free(acq, sizeof(*acq));
                }
        }
-    }
 #endif
+}
+
+/*
+ * time handler.
+ * scanning SPD and SAD to check status for each entries,
+ * and do to remove or to expire.
+ */
+static void
+key_timehandler_work(struct work *wk, void *arg)
+{
+       int s;
+       time_t now = time_uptime;
+
+       s = splsoftnet();
+       mutex_enter(softnet_lock);
+
+       key_timehandler_spd(now);
+       key_timehandler_sad(now);
+       key_timehandler_acq(now);
+       key_timehandler_spacq(now);
 
        /* do exchange to tick time !! */
        callout_reset(&key_timehandler_ch, hz, key_timehandler, NULL);