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add rml's netdev-random patch and modify et to use it (finally some entropy on /dev/random)

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@802 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
nbd 2005-05-05 00:10:22 +00:00
parent 0eac43ecc2
commit 944b178f53
4 changed files with 309 additions and 1 deletions
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296
openwrt/package/linux/kernel-patches/403-netdev_random_core.patch Normal file
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@ -0,0 +1,296 @@
diff -urN linux-2.4.26-pre5/Documentation/Configure.help linux-2.4.26-pre5-netdev-core/Documentation/Configure.help
--- linux-2.4.26-pre5/Documentation/Configure.help Sat Mar 20 10:08:18 2004
+++ linux-2.4.26-pre5-netdev-core/Documentation/Configure.help Sun Mar 21 10:16:14 2004
@@ -10419,6 +10419,20 @@
If you don't know what to use this for, you don't need it.
+Allow Net Devices to contribute to /dev/random
+CONFIG_NET_RANDOM
+ If you say Y here, network device interrupts will contribute to the
+ kernel entropy pool. Normally, block devices and some other devices
+ feed the pool. Some systems, such as those that are headless or diskless,
+ need additional entropy sources. Some people, however, feel that network
+ devices should not contribute to /dev/random because an external attacker
+ could observe incoming packets in an attempt to learn the entropy pool's
+ state. If you say N, no network device will contribute entropy.
+
+ If you believe there is a chance of your network packets being observed
+ and you doubt the security of the entropy pool's one-way hash, do not
+ enable this. If unsure, say N.
+
Ethertap network tap (OBSOLETE)
CONFIG_ETHERTAP
If you say Y here (and have said Y to "Kernel/User network link
diff -urN linux-2.4.26-pre5/drivers/net/Config.in linux-2.4.26-pre5-netdev-core/drivers/net/Config.in
--- linux-2.4.26-pre5/drivers/net/Config.in Sat Mar 20 10:08:18 2004
+++ linux-2.4.26-pre5-netdev-core/drivers/net/Config.in Sun Mar 21 10:16:14 2004
@@ -8,6 +8,7 @@
tristate 'Bonding driver support' CONFIG_BONDING
tristate 'EQL (serial line load balancing) support' CONFIG_EQUALIZER
tristate 'Universal TUN/TAP device driver support' CONFIG_TUN
+bool 'Allow Net Devices to contribute to /dev/random' CONFIG_NET_RANDOM
if [ "$CONFIG_EXPERIMENTAL" = "y" ]; then
tristate 'Ethertap network tap (OBSOLETE)' CONFIG_ETHERTAP
fi
diff -urN linux-2.4.26-pre5/include/asm-alpha/signal.h linux-2.4.26-pre5-netdev-core/include/asm-alpha/signal.h
--- linux-2.4.26-pre5/include/asm-alpha/signal.h Sat Dec 1 18:27:14 2001
+++ linux-2.4.26-pre5-netdev-core/include/asm-alpha/signal.h Sun Mar 21 10:16:14 2004
@@ -121,7 +121,14 @@
#define SA_PROBE SA_ONESHOT
#define SA_SAMPLE_RANDOM SA_RESTART
#define SA_SHIRQ 0x40000000
+
+#ifdef CONFIG_NET_RANDOM
+#define SA_NET_RANDOM SA_SAMPLE_RANDOM
+#else
+#define SA_NET_RANDOM 0
#endif
+
+#endif /* __KERNEL__ */
#define SIG_BLOCK 1 /* for blocking signals */
#define SIG_UNBLOCK 2 /* for unblocking signals */
diff -urN linux-2.4.26-pre5/include/asm-arm/signal.h linux-2.4.26-pre5-netdev-core/include/asm-arm/signal.h
--- linux-2.4.26-pre5/include/asm-arm/signal.h Sat Sep 13 07:57:29 2003
+++ linux-2.4.26-pre5-netdev-core/include/asm-arm/signal.h Sun Mar 21 10:16:14 2004
@@ -125,7 +125,14 @@
#define SA_PROBE 0x80000000
#define SA_SAMPLE_RANDOM 0x10000000
#define SA_SHIRQ 0x04000000
+
+#ifdef CONFIG_NET_RANDOM
+#define SA_NET_RANDOM SA_SAMPLE_RANDOM
+#else
+#define SA_NET_RANDOM 0
#endif
+
+#endif /* __KERNEL__ */
#define SIG_BLOCK 0 /* for blocking signals */
#define SIG_UNBLOCK 1 /* for unblocking signals */
diff -urN linux-2.4.26-pre5/include/asm-cris/signal.h linux-2.4.26-pre5-netdev-core/include/asm-cris/signal.h
--- linux-2.4.26-pre5/include/asm-cris/signal.h Sat Dec 1 18:27:14 2001
+++ linux-2.4.26-pre5-netdev-core/include/asm-cris/signal.h Sun Mar 21 10:16:14 2004
@@ -120,7 +120,14 @@
#define SA_PROBE SA_ONESHOT
#define SA_SAMPLE_RANDOM SA_RESTART
#define SA_SHIRQ 0x04000000
+
+#ifdef CONFIG_NET_RANDOM
+#define SA_NET_RANDOM SA_SAMPLE_RANDOM
+#else
+#define SA_NET_RANDOM 0
#endif
+
+#endif /* __KERNEL__ */
#define SIG_BLOCK 0 /* for blocking signals */
#define SIG_UNBLOCK 1 /* for unblocking signals */
diff -urN linux-2.4.26-pre5/include/asm-i386/signal.h linux-2.4.26-pre5-netdev-core/include/asm-i386/signal.h
--- linux-2.4.26-pre5/include/asm-i386/signal.h Sun Mar 21 00:00:43 2004
+++ linux-2.4.26-pre5-netdev-core/include/asm-i386/signal.h Sun Mar 21 10:16:14 2004
@@ -119,7 +119,14 @@
#define SA_PROBE SA_ONESHOT
#define SA_SAMPLE_RANDOM SA_RESTART
#define SA_SHIRQ 0x04000000
+
+#ifdef CONFIG_NET_RANDOM
+#define SA_NET_RANDOM SA_SAMPLE_RANDOM
+#else
+#define SA_NET_RANDOM 0
#endif
+
+#endif /* __KERNEL__ */
#define SIG_BLOCK 0 /* for blocking signals */
#define SIG_UNBLOCK 1 /* for unblocking signals */
diff -urN linux-2.4.26-pre5/include/asm-ia64/signal.h linux-2.4.26-pre5-netdev-core/include/asm-ia64/signal.h
--- linux-2.4.26-pre5/include/asm-ia64/signal.h Sat Mar 20 10:08:20 2004
+++ linux-2.4.26-pre5-netdev-core/include/asm-ia64/signal.h Sun Mar 21 10:16:14 2004
@@ -117,6 +117,12 @@
#define SA_SHIRQ 0x04000000
#define SA_PERCPU_IRQ 0x02000000
+#ifdef CONFIG_NET_RANDOM
+#define SA_NET_RANDOM SA_SAMPLE_RANDOM
+#else
+#define SA_NET_RANDOM 0
+#endif
+
#endif /* __KERNEL__ */
#define SIG_BLOCK 0 /* for blocking signals */
diff -urN linux-2.4.26-pre5/include/asm-m68k/signal.h linux-2.4.26-pre5-netdev-core/include/asm-m68k/signal.h
--- linux-2.4.26-pre5/include/asm-m68k/signal.h Fri Feb 20 07:38:33 2004
+++ linux-2.4.26-pre5-netdev-core/include/asm-m68k/signal.h Sun Mar 21 10:16:14 2004
@@ -116,7 +116,14 @@
#define SA_PROBE SA_ONESHOT
#define SA_SAMPLE_RANDOM SA_RESTART
#define SA_SHIRQ 0x04000000
+
+#ifdef CONFIG_NET_RANDOM
+#define SA_NET_RANDOM SA_SAMPLE_RANDOM
+#else
+#define SA_NET_RANDOM 0
#endif
+
+#endif /* __KERNEL__ */
#define SIG_BLOCK 0 /* for blocking signals */
#define SIG_UNBLOCK 1 /* for unblocking signals */
diff -urN linux-2.4.26-pre5/include/asm-mips/signal.h linux-2.4.26-pre5-netdev-core/include/asm-mips/signal.h
--- linux-2.4.26-pre5/include/asm-mips/signal.h Sat Sep 13 07:57:31 2003
+++ linux-2.4.26-pre5-netdev-core/include/asm-mips/signal.h Sun Mar 21 10:16:14 2004
@@ -111,6 +111,12 @@
#define SA_SAMPLE_RANDOM SA_RESTART
#define SA_SHIRQ 0x02000000
+#ifdef CONFIG_NET_RANDOM
+#define SA_NET_RANDOM SA_SAMPLE_RANDOM
+#else
+#define SA_NET_RANDOM 0
+#endif
+
#endif /* __KERNEL__ */
#define SIG_BLOCK 1 /* for blocking signals */
diff -urN linux-2.4.26-pre5/include/asm-mips64/signal.h linux-2.4.26-pre5-netdev-core/include/asm-mips64/signal.h
--- linux-2.4.26-pre5/include/asm-mips64/signal.h Sat Sep 13 07:57:32 2003
+++ linux-2.4.26-pre5-netdev-core/include/asm-mips64/signal.h Sun Mar 21 10:16:14 2004
@@ -119,6 +119,12 @@
#define SA_SAMPLE_RANDOM SA_RESTART
#define SA_SHIRQ 0x02000000
+#ifdef CONFIG_NET_RANDOM
+#define SA_NET_RANDOM SA_SAMPLE_RANDOM
+#else
+#define SA_NET_RANDOM 0
+#endif
+
#endif /* __KERNEL__ */
#define SIG_BLOCK 1 /* for blocking signals */
diff -urN linux-2.4.26-pre5/include/asm-parisc/signal.h linux-2.4.26-pre5-netdev-core/include/asm-parisc/signal.h
--- linux-2.4.26-pre5/include/asm-parisc/signal.h Sun Jan 11 18:48:21 2004
+++ linux-2.4.26-pre5-netdev-core/include/asm-parisc/signal.h Sun Mar 21 10:16:14 2004
@@ -100,6 +100,12 @@
#define SA_SAMPLE_RANDOM SA_RESTART
#define SA_SHIRQ 0x04000000
+#ifdef CONFIG_NET_RANDOM
+#define SA_NET_RANDOM SA_SAMPLE_RANDOM
+#else
+#define SA_NET_RANDOM 0
+#endif
+
#endif /* __KERNEL__ */
#define SIG_BLOCK 0 /* for blocking signals */
diff -urN linux-2.4.26-pre5/include/asm-ppc/signal.h linux-2.4.26-pre5-netdev-core/include/asm-ppc/signal.h
--- linux-2.4.26-pre5/include/asm-ppc/signal.h Sat Sep 13 07:57:32 2003
+++ linux-2.4.26-pre5-netdev-core/include/asm-ppc/signal.h Sun Mar 21 10:16:14 2004
@@ -111,6 +111,13 @@
#define SA_PROBE SA_ONESHOT
#define SA_SAMPLE_RANDOM SA_RESTART
#define SA_SHIRQ 0x04000000
+
+#ifdef CONFIG_NET_RANDOM
+#define SA_NET_RANDOM SA_SAMPLE_RANDOM
+#else
+#define SA_NET_RANDOM 0
+#endif
+
#endif /* __KERNEL__ */
#define SIG_BLOCK 0 /* for blocking signals */
diff -urN linux-2.4.26-pre5/include/asm-s390/signal.h linux-2.4.26-pre5-netdev-core/include/asm-s390/signal.h
--- linux-2.4.26-pre5/include/asm-s390/signal.h Fri Feb 20 07:38:34 2004
+++ linux-2.4.26-pre5-netdev-core/include/asm-s390/signal.h Sun Mar 21 10:16:14 2004
@@ -129,7 +129,14 @@
#define SA_SHIRQ 0x04000000
#define SA_DOPATHGROUP 0x00100000
#define SA_FORCE 0x00200000
+
+#ifdef CONFIG_NET_RANDOM
+#define SA_NET_RANDOM SA_SAMPLE_RANDOM
+#else
+#define SA_NET_RANDOM 0
#endif
+
+#endif /* __KERNEL__ */
#define SIG_BLOCK 0 /* for blocking signals */
#define SIG_UNBLOCK 1 /* for unblocking signals */
diff -urN linux-2.4.26-pre5/include/asm-s390x/signal.h linux-2.4.26-pre5-netdev-core/include/asm-s390x/signal.h
--- linux-2.4.26-pre5/include/asm-s390x/signal.h Fri Feb 20 07:38:34 2004
+++ linux-2.4.26-pre5-netdev-core/include/asm-s390x/signal.h Sun Mar 21 10:16:14 2004
@@ -129,7 +129,14 @@
#define SA_SHIRQ 0x04000000
#define SA_DOPATHGROUP 0x00100000
#define SA_FORCE 0x00200000
+
+#ifdef CONFIG_NET_RANDOM
+#define SA_NET_RANDOM SA_SAMPLE_RANDOM
+#else
+#define SA_NET_RANDOM 0
#endif
+
+#endif /* __KERNEL__ */
#define SIG_BLOCK 0 /* for blocking signals */
#define SIG_UNBLOCK 1 /* for unblocking signals */
diff -urN linux-2.4.26-pre5/include/asm-sh/signal.h linux-2.4.26-pre5-netdev-core/include/asm-sh/signal.h
--- linux-2.4.26-pre5/include/asm-sh/signal.h Sat Dec 1 18:27:13 2001
+++ linux-2.4.26-pre5-netdev-core/include/asm-sh/signal.h Sun Mar 21 10:16:14 2004
@@ -107,7 +107,14 @@
#define SA_PROBE SA_ONESHOT
#define SA_SAMPLE_RANDOM SA_RESTART
#define SA_SHIRQ 0x04000000
+
+#ifdef CONFIG_NET_RANDOM
+#define SA_NET_RANDOM SA_SAMPLE_RANDOM
+#else
+#define SA_NET_RANDOM 0
#endif
+
+#endif /* __KERNEL__ */
#define SIG_BLOCK 0 /* for blocking signals */
#define SIG_UNBLOCK 1 /* for unblocking signals */
diff -urN linux-2.4.26-pre5/include/asm-sparc/signal.h linux-2.4.26-pre5-netdev-core/include/asm-sparc/signal.h
--- linux-2.4.26-pre5/include/asm-sparc/signal.h Sat Dec 1 18:27:14 2001
+++ linux-2.4.26-pre5-netdev-core/include/asm-sparc/signal.h Sun Mar 21 10:16:14 2004
@@ -176,7 +176,14 @@
#define SA_PROBE SA_ONESHOT
#define SA_SAMPLE_RANDOM SA_RESTART
#define SA_STATIC_ALLOC 0x80
+
+#ifdef CONFIG_NET_RANDOM
+#define SA_NET_RANDOM SA_SAMPLE_RANDOM
+#else
+#define SA_NET_RANDOM 0
#endif
+
+#endif /* __KERNEL__ */
/* Type of a signal handler. */
#ifdef __KERNEL__
diff -urN linux-2.4.26-pre5/include/asm-sparc64/signal.h linux-2.4.26-pre5-netdev-core/include/asm-sparc64/signal.h
--- linux-2.4.26-pre5/include/asm-sparc64/signal.h Sat Dec 1 18:27:14 2001
+++ linux-2.4.26-pre5-netdev-core/include/asm-sparc64/signal.h Sun Mar 21 10:16:14 2004
@@ -192,7 +192,14 @@
#define SA_PROBE SA_ONESHOT
#define SA_SAMPLE_RANDOM SA_RESTART
#define SA_STATIC_ALLOC 0x80
+
+#ifdef CONFIG_NET_RANDOM
+#define SA_NET_RANDOM SA_SAMPLE_RANDOM
+#else
+#define SA_NET_RANDOM 0
#endif
+
+#endif /* __KERNEL__ */
/* Type of a signal handler. */
#ifdef __KERNEL__

11
openwrt/package/linux/kernel-patches/404-netdev_random_et.patch Normal file
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@ -0,0 +1,11 @@
--- linux-2.4.30.old/drivers/net/et/et_linux.c 2005-05-05 02:53:35.000000000 +0200
+++ linux-2.4.30/drivers/net/et/et_linux.c 2005-05-05 02:54:01.000000000 +0200
@@ -192,7 +192,7 @@
#endif
/* register our interrupt handler */
- if (request_irq(pdev->irq, et_isr, SA_SHIRQ, dev->name, et)) {
+ if (request_irq(pdev->irq, et_isr, SA_SHIRQ | SA_NET_RANDOM, dev->name, et)) {
ET_ERROR(("et%d: request_irq() failed\n", unit));
goto fail;
}

1
openwrt/package/linux/linux.config
View File

@ -716,6 +716,7 @@ CONFIG_WL_STA=y
# CONFIG_BONDING is not set
# CONFIG_EQUALIZER is not set
CONFIG_TUN=m
CONFIG_NET_RANDOM=y
# CONFIG_ETHERTAP is not set
#

2
openwrt/package/linux/linux.mk
View File

@ -52,7 +52,6 @@ $(LINUX_DIR)/.unpacked: $(DL_DIR)/$(LINUX_SOURCE) $(DL_DIR)/$(LINUX_BINARY_WL_DR
touch $(LINUX_DIR)/.unpacked
$(LINUX_DIR)/.patched: $(LINUX_DIR)/.unpacked
$(PATCH) $(LINUX_DIR) $(LINUX_PATCHES)
# copy kernel source which is maintained in openwrt via cvs
cp -a $(LINUX_KERNEL_SOURCE)/* $(LINUX_DIR)
# copy binary wlan driver
@ -60,6 +59,7 @@ $(LINUX_DIR)/.patched: $(LINUX_DIR)/.unpacked
# copy proprietary et source
cp -a $(BUILD_DIR)/et/* $(LINUX_DIR)/drivers/net/et
cp -a $(BUILD_DIR)/et/*.h $(LINUX_DIR)/include/
$(PATCH) $(LINUX_DIR) $(LINUX_PATCHES)
$(SED) 's/@expr length/@-expr length/' $(LINUX_DIR)/Makefile
touch $(LINUX_DIR)/.patched