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[src/trunk]: src/sys/dev/usb Sample # of RX packets as entropy source.
details: https://anonhg.NetBSD.org/src/rev/b28ee4f9a34e
branches: trunk
changeset: 982723:b28ee4f9a34e
user: rin <rin%NetBSD.org@localhost>
date: Sun Apr 25 05:16:26 2021 +0000
description:
Sample # of RX packets as entropy source.
diffstat:
sys/dev/usb/if_smsc.c | 13 ++++++++++---
1 files changed, 10 insertions(+), 3 deletions(-)
diffs (48 lines):
diff -r e3df8ead9c61 -r b28ee4f9a34e sys/dev/usb/if_smsc.c
--- a/sys/dev/usb/if_smsc.c Sun Apr 25 05:15:20 2021 +0000
+++ b/sys/dev/usb/if_smsc.c Sun Apr 25 05:16:26 2021 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: if_smsc.c,v 1.69 2020/06/27 13:33:26 jmcneill Exp $ */
+/* $NetBSD: if_smsc.c,v 1.70 2021/04/25 05:16:26 rin Exp $ */
/* $OpenBSD: if_smsc.c,v 1.4 2012/09/27 12:38:11 jsg Exp $ */
/* $FreeBSD: src/sys/dev/usb/net/if_smsc.c,v 1.1 2012/08/15 04:03:55 gonzo Exp $ */
@@ -61,7 +61,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: if_smsc.c,v 1.69 2020/06/27 13:33:26 jmcneill Exp $");
+__KERNEL_RCSID(0, "$NetBSD: if_smsc.c,v 1.70 2021/04/25 05:16:26 rin Exp $");
#ifdef _KERNEL_OPT
#include "opt_usb.h"
@@ -918,13 +918,15 @@
}
static void
-smsc_uno_rx_loop(struct usbnet * un, struct usbnet_chain *c, uint32_t total_len)
+smsc_uno_rx_loop(struct usbnet *un, struct usbnet_chain *c, uint32_t total_len)
{
USMSCHIST_FUNC(); USMSCHIST_CALLED();
struct smsc_softc * const sc = usbnet_softc(un);
struct ifnet *ifp = usbnet_ifp(un);
uint8_t *buf = c->unc_buf;
+ int count;
+ count = 0;
DPRINTF("total_len %jd/%#jx", total_len, total_len, 0, 0);
while (total_len != 0) {
uint32_t rxhdr;
@@ -1045,7 +1047,12 @@
/* push the packet up */
usbnet_enqueue(un, pktbuf, buflen, csum_flags, csum_data,
mbuf_flags);
+
+ count++;
}
+
+ if (count != 0)
+ rnd_add_uint32(usbnet_rndsrc(un), count);
}
static unsigned
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