[src/trunk]: src/sys/netipsec Dedup: merge ipsec4_checkpolicy and ipsec6_chec...

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

details:   https://anonhg.NetBSD.org/src/rev/b1313d6d1089
branches:  trunk
changeset: 359832:b1313d6d1089
user:      maxv <maxv%NetBSD.org@localhost>
date:      Mon Feb 26 08:42:16 2018 +0000

description:
Dedup: merge ipsec4_checkpolicy and ipsec6_checkpolicy into
ipsec_checkpolicy.

ok ozaki-r@

diffstat:

 sys/netipsec/ipsec.c  |  65 ++++++--------------------------------------------
 sys/netipsec/ipsec6.h |   4 +--
 2 files changed, 9 insertions(+), 60 deletions(-)

diffs (139 lines):

diff -r 985fbcfdb65f -r b1313d6d1089 sys/netipsec/ipsec.c
--- a/sys/netipsec/ipsec.c      Mon Feb 26 08:34:47 2018 +0000
+++ b/sys/netipsec/ipsec.c      Mon Feb 26 08:42:16 2018 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: ipsec.c,v 1.136 2018/02/26 06:48:01 maxv Exp $ */
+/* $NetBSD: ipsec.c,v 1.137 2018/02/26 08:42:16 maxv Exp $ */
 /* $FreeBSD: src/sys/netipsec/ipsec.c,v 1.2.2.2 2003/07/01 01:38:13 sam Exp $ */
 /* $KAME: ipsec.c,v 1.103 2001/05/24 07:14:18 sakane Exp $ */
 
@@ -32,7 +32,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: ipsec.c,v 1.136 2018/02/26 06:48:01 maxv Exp $");
+__KERNEL_RCSID(0, "$NetBSD: ipsec.c,v 1.137 2018/02/26 08:42:16 maxv Exp $");
 
 /*
  * IPsec controller part.
@@ -574,8 +574,8 @@
 }
 
 static struct secpolicy *
-ipsec4_checkpolicy(struct mbuf *m, u_int dir, u_int flag, int *error,
-    struct inpcb *inp)
+ipsec_checkpolicy(struct mbuf *m, u_int dir, u_int flag, int *error,
+    void *inp)
 {
        struct secpolicy *sp;
 
@@ -634,7 +634,7 @@
         * Check the security policy (SP) for the packet and, if required,
         * do IPsec-related processing.  There are two cases here; the first
         * time a packet is sent through it will be untagged and handled by
-        * ipsec4_checkpolicy().  If the packet is resubmitted to ip_output
+        * ipsec_checkpolicy().  If the packet is resubmitted to ip_output
         * (e.g. after AH, ESP, etc. processing), there will be a tag to
         * bypass the lookup and related policy checking.
         */
@@ -646,7 +646,7 @@
                splx(s);
                return 0;
        }
-       sp = ipsec4_checkpolicy(m, IPSEC_DIR_OUTBOUND, flags, &error, inp);
+       sp = ipsec_checkpolicy(m, IPSEC_DIR_OUTBOUND, flags, &error, inp);
 
        /*
         * There are four return cases:
@@ -749,7 +749,7 @@
         * it is a Fast Forward candidate.
         */
        s = splsoftnet();
-       sp = ipsec4_checkpolicy(m, IPSEC_DIR_OUTBOUND, flags, &error, NULL);
+       sp = ipsec_checkpolicy(m, IPSEC_DIR_OUTBOUND, flags, &error, NULL);
        if (sp != NULL) {
                m->m_flags &= ~M_CANFASTFWD;
                KEY_SP_UNREF(&sp);
@@ -806,55 +806,6 @@
        return 0;
 }
 
-#ifdef INET6
-struct secpolicy *
-ipsec6_checkpolicy(struct mbuf *m, u_int dir, u_int flag, int *error,
-    struct in6pcb *in6p)
-{
-       struct secpolicy *sp;
-
-       *error = 0;
-
-       if (in6p == NULL) {
-               sp = ipsec_getpolicybyaddr(m, dir, flag, error);
-       } else {
-               struct inpcb_hdr *inph = (struct inpcb_hdr *)in6p;
-               KASSERT(inph->inph_socket != NULL);
-               sp = ipsec_getpolicybysock(m, dir, inph, error);
-       }
-       if (sp == NULL) {
-               KASSERTMSG(*error != 0, "getpolicy failed w/o error");
-               IPSEC_STATINC(IPSEC_STAT_OUT_INVAL);
-               return NULL;
-       }
-       KASSERTMSG(*error == 0, "sp w/ error set to %u", *error);
-       switch (sp->policy) {
-       case IPSEC_POLICY_ENTRUST:
-       default:
-               printf("%s: invalid policy %u\n", __func__, sp->policy);
-               /* fall thru... */
-       case IPSEC_POLICY_DISCARD:
-               IPSEC_STATINC(IPSEC_STAT_OUT_POLVIO);
-               *error = -EINVAL;   /* packet is discarded by caller */
-               break;
-       case IPSEC_POLICY_BYPASS:
-       case IPSEC_POLICY_NONE:
-               KEY_SP_UNREF(&sp);
-               sp = NULL;              /* NB: force NULL result */
-               break;
-       case IPSEC_POLICY_IPSEC:
-               KASSERT(sp->req != NULL);
-               break;
-       }
-       if (*error != 0) {
-               KEY_SP_UNREF(&sp);
-               sp = NULL;
-               IPSECLOG(LOG_DEBUG, "done, error %d\n", *error);
-       }
-       return sp;
-}
-#endif /* INET6 */
-
 static int
 ipsec4_setspidx_inpcb(struct mbuf *m, struct inpcb *pcb)
 {
@@ -2216,7 +2167,7 @@
                        splx(s);
                        goto skippolicycheck;
                }
-               sp = ipsec6_checkpolicy(m, IPSEC_DIR_OUTBOUND, flags, &error,
+               sp = ipsec_checkpolicy(m, IPSEC_DIR_OUTBOUND, flags, &error,
                    in6p);
 
                /*
diff -r 985fbcfdb65f -r b1313d6d1089 sys/netipsec/ipsec6.h
--- a/sys/netipsec/ipsec6.h     Mon Feb 26 08:34:47 2018 +0000
+++ b/sys/netipsec/ipsec6.h     Mon Feb 26 08:42:16 2018 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: ipsec6.h,v 1.22 2018/02/16 15:18:41 maxv Exp $ */
+/*     $NetBSD: ipsec6.h,v 1.23 2018/02/26 08:42:16 maxv Exp $ */
 /*     $FreeBSD: src/sys/netipsec/ipsec6.h,v 1.1.4.1 2003/01/24 05:11:35 sam Exp $     */
 /*     $KAME: ipsec.h,v 1.44 2001/03/23 08:08:47 itojun Exp $  */
 
@@ -56,8 +56,6 @@
 int ipsec6_delete_pcbpolicy(struct in6pcb *);
 int ipsec6_set_policy(struct in6pcb *, int, const void *, size_t, kauth_cred_t);
 int ipsec6_get_policy(struct in6pcb *, const void *, size_t, struct mbuf **);
-struct secpolicy *ipsec6_checkpolicy(struct mbuf *, u_int, 
-    u_int, int *, struct in6pcb *);
 struct secpolicy *ipsec6_check_policy(struct mbuf *, 
     struct in6pcb *, int, int*,int*);
 int ipsec6_in_reject(struct mbuf *, struct in6pcb *);