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authorDavid Gwynne <dlg@cvs.openbsd.org>2015-05-26 11:36:27 +0000
committerDavid Gwynne <dlg@cvs.openbsd.org>2015-05-26 11:36:27 +0000
commitc131d7b17ae570506fe74b23bf380bbf5e896a70 (patch)
treeefc53dd51c347a252220fcc0c3874a664121cff2 /sys/net
parent0e54373f96ecf85bcf89415c5a719a6cf29d6f0e (diff)
move add_net_randomness from ether_input to the if_input task.
change it from feeding the ethertype of the packet (which is almost certainly an ip packet or vlan packet, so not that variable) to the number of packets about to be processed. ok deraadt@ mpi@
Diffstat (limited to 'sys/net')
-rw-r--r--sys/net/if.c6
-rw-r--r--sys/net/if_ethersubr.c9
-rw-r--r--sys/net/if_tun.c5
-rw-r--r--sys/net/netisr.h3
4 files changed, 8 insertions, 15 deletions
diff --git a/sys/net/if.c b/sys/net/if.c
index b740c41467a..7f6a88e0bc5 100644
--- a/sys/net/if.c
+++ b/sys/net/if.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: if.c,v 1.333 2015/05/20 08:28:54 mpi Exp $ */
+/* $OpenBSD: if.c,v 1.334 2015/05/26 11:36:26 dlg Exp $ */
/* $NetBSD: if.c,v 1.35 1996/05/07 05:26:04 thorpej Exp $ */
/*
@@ -81,6 +81,8 @@
#include <sys/sysctl.h>
#include <sys/task.h>
+#include <dev/rndvar.h>
+
#include <net/if.h>
#include <net/if_dl.h>
#include <net/if_types.h>
@@ -523,6 +525,8 @@ if_input_process(void *xmq)
if (ml_empty(&ml))
return;
+ add_net_randomness(ml_len(&ml));
+
KERNEL_LOCK();
s = splnet();
while ((m = ml_dequeue(&ml)) != NULL) {
diff --git a/sys/net/if_ethersubr.c b/sys/net/if_ethersubr.c
index 1d023091a48..3fe86227a93 100644
--- a/sys/net/if_ethersubr.c
+++ b/sys/net/if_ethersubr.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: if_ethersubr.c,v 1.199 2015/05/19 11:09:24 mpi Exp $ */
+/* $OpenBSD: if_ethersubr.c,v 1.200 2015/05/26 11:36:26 dlg Exp $ */
/* $NetBSD: if_ethersubr.c,v 1.19 1996/05/07 02:40:30 thorpej Exp $ */
/*
@@ -99,8 +99,6 @@ didn't get a copy, you may request one from <license@ipv6.nrl.navy.mil>.
#include <netinet/if_ether.h>
#include <netinet/ip_ipsp.h>
-#include <dev/rndvar.h>
-
#if NBPFILTER > 0
#include <net/bpf.h>
#endif
@@ -476,11 +474,6 @@ ether_input(struct mbuf *m, void *hdr)
etype = ntohs(eh->ether_type);
- if (!(netisr & (1 << NETISR_RND_DONE))) {
- add_net_randomness(etype);
- atomic_setbits_int(&netisr, (1 << NETISR_RND_DONE));
- }
-
#if NBRIDGE > 0
/*
* Tap the packet off here for a bridge, if configured and
diff --git a/sys/net/if_tun.c b/sys/net/if_tun.c
index c66c95b9c1a..c4ea429615c 100644
--- a/sys/net/if_tun.c
+++ b/sys/net/if_tun.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: if_tun.c,v 1.143 2015/05/20 08:28:54 mpi Exp $ */
+/* $OpenBSD: if_tun.c,v 1.144 2015/05/26 11:36:26 dlg Exp $ */
/* $NetBSD: if_tun.c,v 1.24 1996/05/07 02:40:48 thorpej Exp $ */
/*
@@ -882,9 +882,6 @@ tunwrite(dev_t dev, struct uio *uio, int ioflag)
#endif
if (tp->tun_flags & TUN_LAYER2) {
- /* quirk to not add randomness from a virtual device */
- atomic_setbits_int(&netisr, (1 << NETISR_RND_DONE));
-
s = splnet();
ether_input_mbuf(ifp, top);
splx(s);
diff --git a/sys/net/netisr.h b/sys/net/netisr.h
index 9d09d25048b..5aba72daa11 100644
--- a/sys/net/netisr.h
+++ b/sys/net/netisr.h
@@ -1,4 +1,4 @@
-/* $OpenBSD: netisr.h,v 1.40 2014/08/10 07:28:32 guenther Exp $ */
+/* $OpenBSD: netisr.h,v 1.41 2015/05/26 11:36:26 dlg Exp $ */
/* $NetBSD: netisr.h,v 1.12 1995/08/12 23:59:24 mycroft Exp $ */
/*
@@ -50,7 +50,6 @@
* interrupt used for scheduling the network code to calls
* on the lowest level routine of each protocol.
*/
-#define NETISR_RND_DONE 1
#define NETISR_IP 2 /* same as AF_INET */
#define NETISR_TX 3 /* for if_snd processing */
#define NETISR_MPLS 4 /* AF_MPLS would overflow */