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

git-svn-id: svn://svn.openwrt.org/openwrt/trunk/openwrt@802 3c298f89-4303-0410-b956-a3cf2f4a3e73

4 files changed, 309 insertions, 1 deletions

diff --git a/package/linux/kernel-patches/403-netdev_random_core.patch b/package/linux/kernel-patches/403-netdev_random_core.patch
new file mode 100644
index 000000000..784b65e41
--- /dev/null
+++ b/package/linux/kernel-patches/403-netdev_random_core.patch
@@ -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__
diff --git a/package/linux/kernel-patches/404-netdev_random_et.patch b/package/linux/kernel-patches/404-netdev_random_et.patch
new file mode 100644
index 000000000..e14a43c35
--- /dev/null
+++ b/package/linux/kernel-patches/404-netdev_random_et.patch
@@ -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;
+ 	}
diff --git a/package/linux/linux.config b/package/linux/linux.config
index 944de115b..588b877af 100644
--- a/package/linux/linux.config
+++ b/package/linux/linux.config
@@ -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
 
 #
diff --git a/package/linux/linux.mk b/package/linux/linux.mk
index 5e68bd537..1cfd69988 100644
--- a/package/linux/linux.mk
+++ b/package/linux/linux.mk
@@ -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