Date: Wed, 25 Nov 2009 19:22:09 +0100 From: <Hartmut.Brandt@dlr.de> To: <freebsd-net@freebsd.org> Subject: Getting creation and modification time of an IPv6 interface address Message-ID: <E086A96846579E4F932C168218DB1E5502412A@exbe5.intra.dlr.de>
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Hi,
I'm working on the IpAddressTable for bsnmpd. This table has two rows =
ipAddressCreated and ipAddressLastUpdated which seem to
correspond to the created and changed fields of the struct in6_ifaddr. =
Because there seems no way (except for poking in the
kernel memory) to get at these values I have added an ioctl to get them =
much in the spirit of the other ioctls for IPv6 addresses.
I'm not sure how the ioctl codes are allocated so I just took the next =
available one. If this looks ok and there are no principal problems,
I would like to commit that.
harti
Index: in6.c
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
RCS file: /usr/cvsup/src/sys/netinet6/in6.c,v
retrieving revision 1.121.2.8
diff -u -r1.121.2.8 in6.c
--- in6.c 28 Oct 2009 21:45:25 -0000 1.121.2.8
+++ in6.c 25 Nov 2009 17:41:40 -0000
@@ -312,6 +312,7 @@
case SIOCSIFALIFETIME_IN6:
case SIOCGIFSTAT_IN6:
case SIOCGIFSTAT_ICMP6:
+ case SIOCGIFATIMES_IN6:
sa6 =3D &ifr->ifr_addr;
break;
default:
@@ -383,6 +384,7 @@
case SIOCGIFNETMASK_IN6:
case SIOCGIFDSTADDR_IN6:
case SIOCGIFALIFETIME_IN6:
+ case SIOCGIFATIMES_IN6:
/* must think again about its semantics */
if (ia =3D=3D NULL) {
error =3D EADDRNOTAVAIL;
@@ -652,6 +654,11 @@
prelist_remove(pr);
EVENTHANDLER_INVOKE(ifaddr_event, ifp);
break;
+
+ case SIOCGIFATIMES_IN6:
+ ifr->ifr_ifru.ifru_times[0] =3D ia->ia6_createtime;
+ ifr->ifr_ifru.ifru_times[1] =3D ia->ia6_updatetime;
+ break;
}
=20
default:
Index: in6_var.h
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
RCS file: /usr/cvsup/src/sys/netinet6/in6_var.h,v
retrieving revision 1.45.2.1
diff -u -r1.45.2.1 in6_var.h
--- in6_var.h 3 Aug 2009 08:13:06 -0000 1.45.2.1
+++ in6_var.h 25 Nov 2009 17:07:34 -0000
@@ -277,6 +277,7 @@
struct in6_ifstat ifru_stat;
struct icmp6_ifstat ifru_icmp6stat;
u_int32_t ifru_scope_id[16];
+ time_t ifru_times[2];
} ifr_ifru;
};
=20
@@ -463,6 +464,8 @@
#define SIOCAADDRCTL_POLICY _IOW('u', 108, struct in6_addrpolicy)
#define SIOCDADDRCTL_POLICY _IOW('u', 109, struct in6_addrpolicy)
=20
+#define SIOCGIFATIMES_IN6 _IOWR('i', 110, struct in6_ifreq)
+
#define IN6_IFF_ANYCAST 0x01 /* anycast address */
#define IN6_IFF_TENTATIVE 0x02 /* tentative address */
#define IN6_IFF_DUPLICATED 0x04 /* DAD detected duplicate */
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