FEATURES:=squashfs ext4 audio source-only
MAINTAINER:=Florian Fainelli <florian@openwrt.org>
-KERNEL_PATCHVER:=4.9
+KERNEL_PATCHVER:=4.14
include $(INCLUDE_DIR)/target.mk
# CONFIG_64BIT is not set
CONFIG_ARCH_DEFCONFIG="arch/um/configs/i386_defconfig"
# CONFIG_ARCH_HAS_GCOV_PROFILE_ALL is not set
+CONFIG_ARCH_HAS_KCOV=y
CONFIG_ARCH_HAS_SC_SIGNALS=y
# CONFIG_ARCH_HAS_SG_CHAIN is not set
+# CONFIG_ARCH_HAS_STRICT_KERNEL_RWX is not set
+# CONFIG_ARCH_HAS_STRICT_MODULE_RWX is not set
+# CONFIG_ARCH_OPTIONAL_KERNEL_RWX is not set
+# CONFIG_ARCH_OPTIONAL_KERNEL_RWX_DEFAULT is not set
CONFIG_ARCH_REUSE_HOST_VSYSCALL_AREA=y
CONFIG_ARCH_WANT_IPC_PARSE_VERSION=y
CONFIG_BLK_DEV_COW_COMMON=y
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_UBD=y
CONFIG_BLK_DEV_UBD_SYNC=y
+CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE=y
+# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_CLONE_BACKWARDS=y
CONFIG_CON_CHAN="xterm"
CONFIG_CON_ZERO_CHAN="fd:0,fd:1"
CONFIG_CPU_SUP_UMC_32=y
# CONFIG_CRASHLOG is not set
CONFIG_CRC16=y
+CONFIG_CRYPTO_CRC32=y
CONFIG_CRYPTO_CRC32C=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_WORKQUEUE=y
-CONFIG_DEBUG_BUGVERBOSE=y
CONFIG_DEBUG_MEMORY_INIT=y
CONFIG_DECOMPRESS_BZIP2=y
CONFIG_DECOMPRESS_GZIP=y
CONFIG_F2FS_FS_XATTR=y
CONFIG_F2FS_STAT_FS=y
CONFIG_FS_MBCACHE=y
-CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_GENERIC_CPU_DEVICES=y
CONFIG_GENERIC_FIND_FIRST_BIT=y
CONFIG_GENERIC_IO=y
CONFIG_GENERIC_IRQ_SHOW=y
+# CONFIG_GRO_CELLS is not set
# CONFIG_HAVE_64BIT_ALIGNED_ACCESS is not set
CONFIG_HAVE_AOUT=y
CONFIG_HAVE_ARCH_AUDITSYSCALL=y
# CONFIG_HAVE_ARCH_BITREVERSE is not set
+CONFIG_HAVE_ARCH_SECCOMP_FILTER=y
# CONFIG_HAVE_BOOTMEM_INFO_NODE is not set
+CONFIG_HAVE_DEBUG_KMEMLEAK=y
CONFIG_HAVE_FUTEX_CMPXCHG=y
# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
CONFIG_HAVE_NET_DSA=y
CONFIG_IRQ_WORK=y
CONFIG_ISO9660_FS=y
CONFIG_JBD2=y
-# CONFIG_JFFS2_CMODE_PRIORITY is not set
# CONFIG_JFFS2_FS is not set
CONFIG_KALLSYMS=y
CONFIG_KERNEL_STACK_ORDER=2
# CONFIG_MCORE2 is not set
# CONFIG_MCRUSOE is not set
# CONFIG_MCYRIXIII is not set
+# CONFIG_MDIO_BUS is not set
# CONFIG_MEFFICEON is not set
# CONFIG_MELAN is not set
# CONFIG_MGEODEGX1 is not set
# CONFIG_NOCONFIG_CHAN is not set
CONFIG_NO_DMA=y
CONFIG_NO_IOMEM=y
+CONFIG_NR_CPUS=1
# CONFIG_NSC_GPIO is not set
CONFIG_NULL_CHAN=y
# CONFIG_OF is not set
CONFIG_PORT_CHAN=y
CONFIG_POSIX_MQUEUE=y
CONFIG_POSIX_MQUEUE_SYSCTL=y
-CONFIG_PRINT_QUOTA_WARNING=y
# CONFIG_PROCESSOR_SELECT is not set
CONFIG_PROC_PAGE_MONITOR=y
CONFIG_PTY_CHAN=y
+# CONFIG_RCU_NEED_SEGCBLIST is not set
# CONFIG_RCU_STALL_COMMON is not set
CONFIG_RD_BZIP2=y
CONFIG_RD_GZIP=y
CONFIG_SOUND=m
CONFIG_SOUND_OSS_CORE=y
CONFIG_SOUND_OSS_CORE_PRECLAIM=y
-CONFIG_SQUASHFS_EMBEDDED=y
CONFIG_SRCU=y
CONFIG_SSL=y
CONFIG_SSL_CHAN="pty"
CONFIG_STATIC_LINK=y
CONFIG_STDERR_CONSOLE=y
CONFIG_TICK_CPU_ACCOUNTING=y
-# CONFIG_TRACE_IRQFLAGS_SUPPORT is not set
+CONFIG_TINY_SRCU=y
CONFIG_TTY_CHAN=y
CONFIG_UML=y
CONFIG_UML_NET=y
CONFIG_X86_USE_PPRO_CHECKSUM=y
CONFIG_XTERM_CHAN=y
CONFIG_ZLIB_INFLATE=y
-CONFIG_ZONE_DMA_FLAG=0
CONFIG_64BIT=y
CONFIG_ARCH_DEFCONFIG="arch/um/configs/x86_64_defconfig"
# CONFIG_ARCH_HAS_GCOV_PROFILE_ALL is not set
+CONFIG_ARCH_HAS_KCOV=y
# CONFIG_ARCH_HAS_SC_SIGNALS is not set
# CONFIG_ARCH_HAS_SG_CHAIN is not set
+# CONFIG_ARCH_HAS_STRICT_KERNEL_RWX is not set
+# CONFIG_ARCH_HAS_STRICT_MODULE_RWX is not set
+# CONFIG_ARCH_OPTIONAL_KERNEL_RWX is not set
+# CONFIG_ARCH_OPTIONAL_KERNEL_RWX_DEFAULT is not set
# CONFIG_ARCH_REUSE_HOST_VSYSCALL_AREA is not set
CONFIG_BINFMT_MISC=m
CONFIG_BLK_DEV_COW_COMMON=y
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_UBD=y
CONFIG_BLK_DEV_UBD_SYNC=y
+CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE=y
+# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_CON_CHAN="xterm"
CONFIG_CON_ZERO_CHAN="fd:0,fd:1"
CONFIG_CPU_SUP_AMD=y
# CONFIG_CRASHLOG is not set
CONFIG_CRC16=y
# CONFIG_CRYPTO_AES_X86_64 is not set
+CONFIG_CRYPTO_CRC32=y
CONFIG_CRYPTO_CRC32C=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_RNG2=y
-# CONFIG_CRYPTO_SALSA20_X86_64 is not set
CONFIG_CRYPTO_SHA1=y
# CONFIG_CRYPTO_SKEIN is not set
# CONFIG_CRYPTO_TWOFISH_X86_64 is not set
CONFIG_CRYPTO_WORKQUEUE=y
-CONFIG_DEBUG_BUGVERBOSE=y
CONFIG_DEBUG_MEMORY_INIT=y
CONFIG_DECOMPRESS_BZIP2=y
CONFIG_DECOMPRESS_GZIP=y
CONFIG_F2FS_FS_XATTR=y
CONFIG_F2FS_STAT_FS=y
CONFIG_FS_MBCACHE=y
-CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_CLOCKEVENTS=y
# CONFIG_GENERIC_CPU is not set
CONFIG_GENERIC_CPU_DEVICES=y
CONFIG_GENERIC_FIND_FIRST_BIT=y
CONFIG_GENERIC_IO=y
CONFIG_GENERIC_IRQ_SHOW=y
+# CONFIG_GRO_CELLS is not set
CONFIG_HAVE_64BIT_ALIGNED_ACCESS=y
CONFIG_HAVE_ARCH_AUDITSYSCALL=y
# CONFIG_HAVE_ARCH_BITREVERSE is not set
+CONFIG_HAVE_ARCH_SECCOMP_FILTER=y
# CONFIG_HAVE_BOOTMEM_INFO_NODE is not set
+CONFIG_HAVE_DEBUG_KMEMLEAK=y
CONFIG_HAVE_FUTEX_CMPXCHG=y
# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
CONFIG_HAVE_NET_DSA=y
# CONFIG_MATOM is not set
CONFIG_MCONSOLE=y
# CONFIG_MCORE2 is not set
+# CONFIG_MDIO_BUS is not set
CONFIG_MK8=y
# CONFIG_MMAPPER is not set
CONFIG_MODULES_USE_ELF_RELA=y
# CONFIG_NOCONFIG_CHAN is not set
CONFIG_NO_DMA=y
CONFIG_NO_IOMEM=y
+CONFIG_NR_CPUS=1
CONFIG_NULL_CHAN=y
# CONFIG_OF is not set
CONFIG_PGTABLE_LEVELS=3
# CONFIG_PROCESSOR_SELECT is not set
CONFIG_PROC_PAGE_MONITOR=y
CONFIG_PTY_CHAN=y
+# CONFIG_RCU_NEED_SEGCBLIST is not set
# CONFIG_RCU_STALL_COMMON is not set
CONFIG_RD_BZIP2=y
CONFIG_RD_GZIP=y
CONFIG_SOUND=m
CONFIG_SOUND_OSS_CORE=y
CONFIG_SOUND_OSS_CORE_PRECLAIM=y
-CONFIG_SQUASHFS_EMBEDDED=y
CONFIG_SRCU=y
CONFIG_SSL=y
CONFIG_SSL_CHAN="pty"
CONFIG_STATIC_LINK=y
CONFIG_STDERR_CONSOLE=y
CONFIG_TICK_CPU_ACCOUNTING=y
-# CONFIG_TRACE_IRQFLAGS_SUPPORT is not set
+CONFIG_TINY_SRCU=y
CONFIG_TTY_CHAN=y
CONFIG_UML=y
CONFIG_UML_NET=y
CONFIG_X86_USE_PPRO_CHECKSUM=y
CONFIG_XTERM_CHAN=y
CONFIG_ZLIB_INFLATE=y
-CONFIG_ZONE_DMA_FLAG=0
--- /dev/null
+#
+# Minimalist mconsole exec patch
+#
+# 3.10 version (with bit more synchronous behavior) by fingon at iki dot fi
+# Adaptation to kernel 3.3.8 made by David Fernández (david at dit.upm.es) for
+# Starting point: mconsole-exec-2.6.30.patch for kernel 2.6.30
+# Author of original patch: Paolo Giarrusso, aka Blaisorblade
+# (http://www.user-mode-linux.org/~blaisorblade)
+#
+# Known misfeatures:
+#
+# - If output is too long, blocks (and breaks horribly)
+# (this misfeature from 3.10 patches, when minimalizing the patch;
+# workaround: redirect to a shared filesystem if long output is expected)
+#
+# - Nothing useful is done with stdin
+#
+--- a/arch/um/drivers/mconsole.h
++++ b/arch/um/drivers/mconsole.h
+@@ -85,6 +85,7 @@ extern void mconsole_cad(struct mc_reque
+ extern void mconsole_stop(struct mc_request *req);
+ extern void mconsole_go(struct mc_request *req);
+ extern void mconsole_log(struct mc_request *req);
++extern void mconsole_exec(struct mc_request *req);
+ extern void mconsole_proc(struct mc_request *req);
+ extern void mconsole_stack(struct mc_request *req);
+
+--- a/arch/um/drivers/mconsole_kern.c
++++ b/arch/um/drivers/mconsole_kern.c
+@@ -4,6 +4,7 @@
+ * Licensed under the GPL
+ */
+
++#include <linux/kmod.h>
+ #include <linux/console.h>
+ #include <linux/ctype.h>
+ #include <linux/string.h>
+@@ -26,6 +27,7 @@
+ #include <linux/mount.h>
+ #include <linux/file.h>
+ #include <linux/uaccess.h>
++#include <linux/completion.h>
+ #include <asm/switch_to.h>
+
+ #include <init.h>
+@@ -122,6 +124,59 @@ void mconsole_log(struct mc_request *req
+ mconsole_reply(req, "", 0, 0);
+ }
+
++void mconsole_exec(struct mc_request *req)
++{
++ struct subprocess_info *sub_info;
++ int res, len;
++ struct file *out;
++ char buf[MCONSOLE_MAX_DATA];
++
++ char *envp[] = {
++ "HOME=/", "TERM=linux",
++ "PATH=/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/sbin:/usr/local/bin",
++ NULL
++ };
++ char *argv[] = {
++ "/bin/sh", "-c",
++ req->request.data + strlen("exec "),
++ NULL
++ };
++
++ sub_info = call_usermodehelper_setup("/bin/sh", argv, envp, GFP_ATOMIC, NULL, NULL, NULL);
++ if (sub_info == NULL) {
++ mconsole_reply(req, "call_usermodehelper_setup failed", 1, 0);
++ return;
++ }
++ res = call_usermodehelper_stdoutpipe(sub_info, &out);
++ if (res < 0) {
++ kfree(sub_info);
++ mconsole_reply(req, "call_usermodehelper_stdoutpipe failed", 1, 0);
++ return;
++ }
++
++ res = call_usermodehelper_exec(sub_info, UMH_WAIT_PROC);
++ if (res < 0) {
++ kfree(sub_info);
++ mconsole_reply(req, "call_usermodehelper_exec failed", 1, 0);
++ return;
++ }
++
++ for (;;) {
++ len = out->f_op->read(out, buf, sizeof(buf), &out->f_pos);
++ if (len < 0) {
++ mconsole_reply(req, "reading output failed", 1, 0);
++ break;
++ }
++ if (len == 0)
++ break;
++ mconsole_reply_len(req, buf, len, 0, 1);
++ }
++ fput(out);
++
++ mconsole_reply_len(req, NULL, 0, 0, 0);
++}
++
++
+ void mconsole_proc(struct mc_request *req)
+ {
+ struct vfsmount *mnt = task_active_pid_ns(current)->proc_mnt;
+@@ -183,6 +238,7 @@ void mconsole_proc(struct mc_request *re
+ stop - pause the UML; it will do nothing until it receives a 'go' \n\
+ go - continue the UML after a 'stop' \n\
+ log <string> - make UML enter <string> into the kernel log\n\
++ exec <string> - pass <string> to /bin/sh -c synchronously\n\
+ proc <file> - returns the contents of the UML's /proc/<file>\n\
+ stack <pid> - returns the stack of the specified pid\n\
+ "
+--- a/arch/um/drivers/mconsole_user.c
++++ b/arch/um/drivers/mconsole_user.c
+@@ -30,6 +30,7 @@ static struct mconsole_command commands[
+ { "stop", mconsole_stop, MCONSOLE_PROC },
+ { "go", mconsole_go, MCONSOLE_INTR },
+ { "log", mconsole_log, MCONSOLE_INTR },
++ { "exec", mconsole_exec, MCONSOLE_PROC },
+ { "proc", mconsole_proc, MCONSOLE_PROC },
+ { "stack", mconsole_stack, MCONSOLE_INTR },
+ };
+--- a/arch/um/os-Linux/file.c
++++ b/arch/um/os-Linux/file.c
+@@ -555,6 +555,8 @@ int os_create_unix_socket(const char *fi
+
+ addr.sun_family = AF_UNIX;
+
++ if (len > sizeof(addr.sun_path))
++ len = sizeof(addr.sun_path);
+ snprintf(addr.sun_path, len, "%s", file);
+
+ err = bind(sock, (struct sockaddr *) &addr, sizeof(addr));
+--- a/include/linux/kmod.h
++++ b/include/linux/kmod.h
+@@ -45,4 +45,6 @@ static inline int request_module_nowait(
+ #define try_then_request_module(x, mod...) (x)
+ #endif
+
++int call_usermodehelper_stdoutpipe(struct subprocess_info *sub_info, struct file **filp);
++
+ #endif /* __LINUX_KMOD_H__ */
+--- a/include/linux/umh.h
++++ b/include/linux/umh.h
+@@ -22,6 +22,7 @@ struct subprocess_info {
+ const char *path;
+ char **argv;
+ char **envp;
++ struct file *stdout;
+ int wait;
+ int retval;
+ int (*init)(struct subprocess_info *info, struct cred *new);
+--- a/kernel/umh.c
++++ b/kernel/umh.c
+@@ -25,6 +25,7 @@
+ #include <linux/ptrace.h>
+ #include <linux/async.h>
+ #include <linux/uaccess.h>
++#include <linux/pipe_fs_i.h>
+
+ #include <trace/events/module.h>
+
+@@ -70,6 +71,28 @@ static int call_usermodehelper_exec_asyn
+ flush_signal_handlers(current, 1);
+ spin_unlock_irq(¤t->sighand->siglock);
+
++ /* Install output when needed */
++ if (sub_info->stdout) {
++ struct files_struct *f = current->files;
++ struct fdtable *fdt;
++
++ sys_close(1);
++ sys_close(2);
++ get_file(sub_info->stdout);
++ fd_install(1, sub_info->stdout);
++ fd_install(2, sub_info->stdout);
++ spin_lock(&f->file_lock);
++ fdt = files_fdtable(f);
++ __set_bit(1, fdt->open_fds);
++ __clear_bit(1, fdt->close_on_exec);
++ __set_bit(2, fdt->open_fds);
++ __clear_bit(2, fdt->close_on_exec);
++ spin_unlock(&f->file_lock);
++
++ /* disallow core files */
++ current->signal->rlim[RLIMIT_CORE] = (struct rlimit){0, 0};
++ }
++
+ /*
+ * Our parent (unbound workqueue) runs with elevated scheduling
+ * priority. Avoid propagating that into the userspace child.
+@@ -393,6 +416,20 @@ struct subprocess_info *call_usermodehel
+ }
+ EXPORT_SYMBOL(call_usermodehelper_setup);
+
++int call_usermodehelper_stdoutpipe(struct subprocess_info *sub_info,
++ struct file **filp)
++{
++ struct file *f[2];
++
++ if (create_pipe_files(f, 0) < 0)
++ return PTR_ERR(f);
++
++ sub_info->stdout = f[1];
++ *filp = f[0];
++ return 0;
++}
++EXPORT_SYMBOL(call_usermodehelper_stdoutpipe);
++
+ /**
+ * call_usermodehelper_exec - start a usermode application
+ * @sub_info: information about the subprocessa
--- /dev/null
+===============================================================================
+
+This patch makes MAC addresses of network interfaces predictable. In
+particular, it adds a small routine that computes MAC addresses of based on
+a SHA1 hash of the virtual machine name and interface ID.
+
+TECHNICAL INFORMATION:
+
+Applies to vanilla kernel 3.9.4.
+
+===============================================================================
+--- a/arch/um/Kconfig.net
++++ b/arch/um/Kconfig.net
+@@ -22,6 +22,19 @@ config UML_NET
+ enable at least one of the following transport options to actually
+ make use of UML networking.
+
++config UML_NET_RANDOM_MAC
++ bool "Use random MAC addresses for network interfaces"
++ default n
++ depends on UML_NET
++ help
++ Virtual network devices inside a User-Mode Linux instance must be
++ assigned a MAC (Ethernet) address. If none is specified on the UML
++ command line, one must be automatically computed. If this option is
++ enabled, a randomly generated address is used. Otherwise, if this
++ option is disabled, the address is generated from a SHA1 hash of
++ the umid of the UML instance and the interface name. The latter choice
++ is useful to make MAC addresses predictable.
++
+ config UML_NET_ETHERTAP
+ bool "Ethertap transport"
+ depends on UML_NET
+--- a/arch/um/drivers/net_kern.c
++++ b/arch/um/drivers/net_kern.c
+@@ -25,6 +25,14 @@
+ #include <net_kern.h>
+ #include <net_user.h>
+
++#include <crypto/sha.h>
++#include <crypto/hash.h>
++#include <linux/string.h>
++#include <linux/crypto.h>
++#include <linux/err.h>
++#include <linux/scatterlist.h>
++#include "os.h"
++
+ #define DRIVER_NAME "uml-netdev"
+
+ static DEFINE_SPINLOCK(opened_lock);
+@@ -288,11 +296,53 @@ static void uml_net_user_timer_expire(un
+ #endif
+ }
+
++#ifndef CONFIG_UML_NET_RANDOM_MAC
++
++/* Compute a SHA1 hash of the UML instance's id and
++ * * an interface name. */
++static int compute_hash(const char *umid, const char *ifname, char *hash)
++{
++ struct ahash_request *desc;
++ struct crypto_ahash *tfm;
++ struct scatterlist sg;
++ char vmif[1024];
++ int ret;
++
++ strcpy (vmif, umid);
++ strcat (vmif, ifname);
++
++ tfm = crypto_alloc_ahash("sha1", 0, CRYPTO_ALG_ASYNC);
++ if (IS_ERR(tfm))
++ return -ENOMEM;
++
++ desc = ahash_request_alloc(tfm, GFP_KERNEL);
++ if (!desc) {
++ ret = -ENOMEM;
++ goto out;
++ }
++
++ crypto_ahash_clear_flags(tfm, ~0);
++
++ sg_init_table(&sg, 1);
++ sg_set_buf(&sg, vmif, strlen(vmif));
++
++ ahash_request_set_crypt(desc, &sg, hash, strlen(vmif));
++
++ ret = crypto_ahash_digest(desc);
++out:
++ crypto_free_ahash(tfm);
++
++ return ret;
++}
++
++#endif
++
+ static void setup_etheraddr(struct net_device *dev, char *str)
+ {
+ unsigned char *addr = dev->dev_addr;
+ char *end;
+ int i;
++ u8 hash[SHA1_DIGEST_SIZE];
+
+ if (str == NULL)
+ goto random;
+@@ -333,9 +383,26 @@ static void setup_etheraddr(struct net_d
+ return;
+
+ random:
++#ifdef CONFIG_UML_NET_RANDOM_MAC
+ printk(KERN_INFO
+ "Choosing a random ethernet address for device %s\n", dev->name);
+ eth_hw_addr_random(dev);
++#else
++ printk(KERN_INFO
++ "Computing a digest to use as ethernet address for device %s\n", dev->name);
++ if (compute_hash(get_umid(), dev->name, hash) < 0) {
++ printk(KERN_WARNING
++ "Could not compute digest to use as ethernet address for device %s. "
++ "Using random address instead.\n", dev->name);
++ random_ether_addr(addr);
++ }
++ else {
++ for (i=0; i < 6; i++)
++ addr[i] = (hash[i] + hash[i+6]) % 0x100;
++ }
++ addr [0] &= 0xfe; /* clear multicast bit */
++ addr [0] |= 0x02; /* set local assignment bit (IEEE802) */
++#endif
+ }
+
+ static DEFINE_SPINLOCK(devices_lock);
+++ /dev/null
-From f44f1e7da7c8e3f4575d5d61c4df978496903fcc Mon Sep 17 00:00:00 2001
-From: Florian Fainelli <f.fainelli@gmail.com>
-Date: Tue, 23 May 2017 17:32:31 -0700
-Subject: [PATCH] um: Avoid longjmp/setjmp symbol clashes with libpthread.a
-
-[ Upstream commit f44f1e7da7c8e3f4575d5d61c4df978496903fcc ]
-
-Building a statically linked UML kernel on a Centos 6.9 host resulted in
-the following linking failure (GCC 4.4, glibc-2.12):
-
-/usr/lib/gcc/x86_64-redhat-linux/4.4.7/../../../../lib64/libpthread.a(libpthread.o):
-In function `siglongjmp':
-(.text+0x8490): multiple definition of `longjmp'
-arch/x86/um/built-in.o:/local/users/fainelli/openwrt/trunk/build_dir/target-x86_64_musl/linux-uml/linux-4.4.69/arch/x86/um/setjmp_64.S:44:
-first defined here
-/usr/lib/gcc/x86_64-redhat-linux/4.4.7/../../../../lib64/libpthread.a(libpthread.o):
-In function `sem_open':
-(.text+0x77cd): warning: the use of `mktemp' is dangerous, better use
-`mkstemp'
-collect2: ld returned 1 exit status
-make[4]: *** [vmlinux] Error 1
-
-Adopt a solution similar to the one done for vmap where we define
-longjmp/setjmp to be kernel_longjmp/setjmp. In the process, make sure we
-do rename the functions in arch/x86/um/setjmp_*.S accordingly.
-
-Fixes: a7df4716d195 ("um: link with -lpthread")
-Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
-Signed-off-by: Richard Weinberger <richard@nod.at>
----
- arch/um/Makefile | 4 ++++
- arch/x86/um/setjmp_32.S | 16 ++++++++--------
- arch/x86/um/setjmp_64.S | 16 ++++++++--------
- 3 files changed, 20 insertions(+), 16 deletions(-)
-
---- a/arch/um/Makefile
-+++ b/arch/um/Makefile
-@@ -59,10 +59,14 @@ KBUILD_CPPFLAGS += -I$(srctree)/$(HOST_D
- # Same things for in6addr_loopback and mktime - found in libc. For these two we
- # only get link-time error, luckily.
- #
-+# -Dlongjmp=kernel_longjmp prevents anything from referencing the libpthread.a
-+# embedded copy of longjmp, same thing for setjmp.
-+#
- # These apply to USER_CFLAGS to.
-
- KBUILD_CFLAGS += $(CFLAGS) $(CFLAGS-y) -D__arch_um__ \
- $(ARCH_INCLUDE) $(MODE_INCLUDE) -Dvmap=kernel_vmap \
-+ -Dlongjmp=kernel_longjmp -Dsetjmp=kernel_setjmp \
- -Din6addr_loopback=kernel_in6addr_loopback \
- -Din6addr_any=kernel_in6addr_any -Dstrrchr=kernel_strrchr
-
---- a/arch/x86/um/setjmp_32.S
-+++ b/arch/x86/um/setjmp_32.S
-@@ -16,9 +16,9 @@
-
- .text
- .align 4
-- .globl setjmp
-- .type setjmp, @function
--setjmp:
-+ .globl kernel_setjmp
-+ .type kernel_setjmp, @function
-+kernel_setjmp:
- #ifdef _REGPARM
- movl %eax,%edx
- #else
-@@ -35,13 +35,13 @@ setjmp:
- movl %ecx,20(%edx) # Return address
- ret
-
-- .size setjmp,.-setjmp
-+ .size kernel_setjmp,.-kernel_setjmp
-
- .text
- .align 4
-- .globl longjmp
-- .type longjmp, @function
--longjmp:
-+ .globl kernel_longjmp
-+ .type kernel_longjmp, @function
-+kernel_longjmp:
- #ifdef _REGPARM
- xchgl %eax,%edx
- #else
-@@ -55,4 +55,4 @@ longjmp:
- movl 16(%edx),%edi
- jmp *20(%edx)
-
-- .size longjmp,.-longjmp
-+ .size kernel_longjmp,.-kernel_longjmp
---- a/arch/x86/um/setjmp_64.S
-+++ b/arch/x86/um/setjmp_64.S
-@@ -18,9 +18,9 @@
-
- .text
- .align 4
-- .globl setjmp
-- .type setjmp, @function
--setjmp:
-+ .globl kernel_setjmp
-+ .type kernel_setjmp, @function
-+kernel_setjmp:
- pop %rsi # Return address, and adjust the stack
- xorl %eax,%eax # Return value
- movq %rbx,(%rdi)
-@@ -34,13 +34,13 @@ setjmp:
- movq %rsi,56(%rdi) # Return address
- ret
-
-- .size setjmp,.-setjmp
-+ .size kernel_setjmp,.-kernel_setjmp
-
- .text
- .align 4
-- .globl longjmp
-- .type longjmp, @function
--longjmp:
-+ .globl kernel_longjmp
-+ .type kernel_longjmp, @function
-+kernel_longjmp:
- movl %esi,%eax # Return value (int)
- movq (%rdi),%rbx
- movq 8(%rdi),%rsp
-@@ -51,4 +51,4 @@ longjmp:
- movq 48(%rdi),%r15
- jmp *56(%rdi)
-
-- .size longjmp,.-longjmp
-+ .size kernel_longjmp,.-kernel_longjmp
+++ /dev/null
-From 0a987645672ebde7844a9c0732a5a25f3d4bb6c6 Mon Sep 17 00:00:00 2001
-From: Florian Fainelli <f.fainelli@gmail.com>
-Date: Thu, 25 May 2017 11:36:26 -0700
-Subject: [PATCH] um: Allow building and running on older hosts
-
-[ Upstream commit 0a987645672ebde7844a9c0732a5a25f3d4bb6c6 ]
-
-Commit a78ff1112263 ("um: add extended processor state save/restore
-support") and b6024b21fec8 ("um: extend fpstate to _xstate to support
-YMM registers") forced the use of the x86 FP _xstate and
-PTRACE_GETREGSET/SETREGSET. On older hosts, we would neither be able to
-build UML nor run it anymore with these two commits applied because we
-don't have definitions for struct _xstate nor these two ptrace requests.
-
-We can determine at build time which fp context structure to check
-against, just like we can keep using the old i387 fp save/restore if
-PTRACE_GETRESET/SETREGSET are not defined.
-
-Fixes: a78ff1112263 ("um: add extended processor state save/restore support")
-Fixes: b6024b21fec8 ("um: extend fpstate to _xstate to support YMM registers")
-Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
-Signed-off-by: Richard Weinberger <richard@nod.at>
----
- arch/x86/um/os-Linux/registers.c | 12 ++++++++----
- arch/x86/um/user-offsets.c | 4 ++++
- 2 files changed, 12 insertions(+), 4 deletions(-)
-
---- a/arch/x86/um/os-Linux/registers.c
-+++ b/arch/x86/um/os-Linux/registers.c
-@@ -26,6 +26,7 @@ int save_i387_registers(int pid, unsigne
-
- int save_fp_registers(int pid, unsigned long *fp_regs)
- {
-+#ifdef PTRACE_GETREGSET
- struct iovec iov;
-
- if (have_xstate_support) {
-@@ -34,9 +35,9 @@ int save_fp_registers(int pid, unsigned
- if (ptrace(PTRACE_GETREGSET, pid, NT_X86_XSTATE, &iov) < 0)
- return -errno;
- return 0;
-- } else {
-+ } else
-+#endif
- return save_i387_registers(pid, fp_regs);
-- }
- }
-
- int restore_i387_registers(int pid, unsigned long *fp_regs)
-@@ -48,6 +49,7 @@ int restore_i387_registers(int pid, unsi
-
- int restore_fp_registers(int pid, unsigned long *fp_regs)
- {
-+#ifdef PTRACE_SETREGSET
- struct iovec iov;
-
- if (have_xstate_support) {
-@@ -56,9 +58,9 @@ int restore_fp_registers(int pid, unsign
- if (ptrace(PTRACE_SETREGSET, pid, NT_X86_XSTATE, &iov) < 0)
- return -errno;
- return 0;
-- } else {
-+ } else
-+#endif
- return restore_i387_registers(pid, fp_regs);
-- }
- }
-
- #ifdef __i386__
-@@ -122,6 +124,7 @@ int put_fp_registers(int pid, unsigned l
-
- void arch_init_registers(int pid)
- {
-+#ifdef PTRACE_GETREGSET
- struct _xstate fp_regs;
- struct iovec iov;
-
-@@ -129,6 +132,7 @@ void arch_init_registers(int pid)
- iov.iov_len = sizeof(struct _xstate);
- if (ptrace(PTRACE_GETREGSET, pid, NT_X86_XSTATE, &iov) == 0)
- have_xstate_support = 1;
-+#endif
- }
- #endif
-
---- a/arch/x86/um/user-offsets.c
-+++ b/arch/x86/um/user-offsets.c
-@@ -50,7 +50,11 @@ void foo(void)
- DEFINE(HOST_GS, GS);
- DEFINE(HOST_ORIG_AX, ORIG_EAX);
- #else
-+#if defined(PTRACE_GETREGSET) && defined(PTRACE_SETREGSET)
- DEFINE(HOST_FP_SIZE, sizeof(struct _xstate) / sizeof(unsigned long));
-+#else
-+ DEFINE(HOST_FP_SIZE, sizeof(struct _fpstate) / sizeof(unsigned long));
-+#endif
- DEFINE_LONGS(HOST_BX, RBX);
- DEFINE_LONGS(HOST_CX, RCX);
- DEFINE_LONGS(HOST_DI, RDI);
+++ /dev/null
-From 61e8d462457f202bf0c6393133425ad387825e22 Mon Sep 17 00:00:00 2001
-From: Richard Weinberger <richard@nod.at>
-Date: Thu, 6 Jul 2017 09:35:27 +0200
-Subject: [PATCH] um: Correctly check for PTRACE_GETRESET/SETREGSET
-
-[ Upstream commit 61e8d462457f202bf0c6393133425ad387825e22 ]
-
-When checking for PTRACE_GETRESET/SETREGSET, make sure that
-the correct header file is included. We need linux/ptrace.h
-which contains all ptrace UAPI related defines.
-Otherwise #if defined(PTRACE_GETRESET) is always false.
-
-Cc: Florian Fainelli <f.fainelli@gmail.com>
-Signed-off-by: Richard Weinberger <richard@nod.at>
----
- arch/x86/um/user-offsets.c | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
---- a/arch/x86/um/user-offsets.c
-+++ b/arch/x86/um/user-offsets.c
-@@ -5,7 +5,7 @@
- #include <sys/mman.h>
- #include <sys/user.h>
- #define __FRAME_OFFSETS
--#include <asm/ptrace.h>
-+#include <linux/ptrace.h>
- #include <asm/types.h>
-
- #ifdef __i386__
+++ /dev/null
-From 2fb44600fe784449404c6639de26af8361999ec7 Mon Sep 17 00:00:00 2001
-From: Florian Fainelli <f.fainelli@gmail.com>
-Date: Tue, 18 Jul 2017 16:43:47 -0700
-Subject: [PATCH] um: Fix check for _xstate for older hosts
-
-Commit 0a987645672e ("um: Allow building and running on older
-hosts") attempted to check for PTRACE_{GET,SET}REGSET under the premise
-that these ptrace(2) parameters were directly linked with the presence
-of the _xstate structure.
-
-After Richard's commit 61e8d462457f ("um: Correctly check for
-PTRACE_GETRESET/SETREGSET") which properly included linux/ptrace.h
-instead of asm/ptrace.h, we could get into the original build failure
-that I reported:
-
-arch/x86/um/user-offsets.c: In function 'foo':
-arch/x86/um/user-offsets.c:54: error: invalid application of 'sizeof' to
-incomplete type 'struct _xstate'
-
-On this particular host, we do have PTRACE_GETREGSET and
-PTRACE_SETREGSET defined in linux/ptrace.h, but not the structure
-_xstate that should be pulled from the following include chain: signal.h
--> bits/sigcontext.h.
-
-Correctly fix this by checking for FP_XSTATE_MAGIC1 which is the correct
-way to see if struct _xstate is available or not on the host.
-
-Fixes: 61e8d462457f ("um: Correctly check for PTRACE_GETRESET/SETREGSET")
-Fixes: 0a987645672e ("um: Allow building and running on older hosts")
-Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
-Signed-off-by: Richard Weinberger <richard@nod.at>
----
- arch/x86/um/user-offsets.c | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
---- a/arch/x86/um/user-offsets.c
-+++ b/arch/x86/um/user-offsets.c
-@@ -50,7 +50,7 @@ void foo(void)
- DEFINE(HOST_GS, GS);
- DEFINE(HOST_ORIG_AX, ORIG_EAX);
- #else
--#if defined(PTRACE_GETREGSET) && defined(PTRACE_SETREGSET)
-+#ifdef FP_XSTATE_MAGIC1
- DEFINE(HOST_FP_SIZE, sizeof(struct _xstate) / sizeof(unsigned long));
- #else
- DEFINE(HOST_FP_SIZE, sizeof(struct _fpstate) / sizeof(unsigned long));
+++ /dev/null
-#
-# Minimalist mconsole exec patch
-#
-# 3.10 version (with bit more synchronous behavior) by fingon at iki dot fi
-# Adaptation to kernel 3.3.8 made by David Fernández (david at dit.upm.es) for
-# Starting point: mconsole-exec-2.6.30.patch for kernel 2.6.30
-# Author of original patch: Paolo Giarrusso, aka Blaisorblade
-# (http://www.user-mode-linux.org/~blaisorblade)
-#
-# Known misfeatures:
-#
-# - If output is too long, blocks (and breaks horribly)
-# (this misfeature from 3.10 patches, when minimalizing the patch;
-# workaround: redirect to a shared filesystem if long output is expected)
-#
-# - Nothing useful is done with stdin
-#
---- a/arch/um/drivers/mconsole.h
-+++ b/arch/um/drivers/mconsole.h
-@@ -85,6 +85,7 @@ extern void mconsole_cad(struct mc_reque
- extern void mconsole_stop(struct mc_request *req);
- extern void mconsole_go(struct mc_request *req);
- extern void mconsole_log(struct mc_request *req);
-+extern void mconsole_exec(struct mc_request *req);
- extern void mconsole_proc(struct mc_request *req);
- extern void mconsole_stack(struct mc_request *req);
-
---- a/arch/um/drivers/mconsole_kern.c
-+++ b/arch/um/drivers/mconsole_kern.c
-@@ -4,6 +4,7 @@
- * Licensed under the GPL
- */
-
-+#include "linux/kmod.h"
- #include <linux/console.h>
- #include <linux/ctype.h>
- #include <linux/string.h>
-@@ -24,6 +25,7 @@
- #include <linux/fs.h>
- #include <linux/mount.h>
- #include <linux/file.h>
-+#include <linux/completion.h>
- #include <asm/uaccess.h>
- #include <asm/switch_to.h>
-
-@@ -121,6 +123,59 @@ void mconsole_log(struct mc_request *req
- mconsole_reply(req, "", 0, 0);
- }
-
-+void mconsole_exec(struct mc_request *req)
-+{
-+ struct subprocess_info *sub_info;
-+ int res, len;
-+ struct file *out;
-+ char buf[MCONSOLE_MAX_DATA];
-+
-+ char *envp[] = {
-+ "HOME=/", "TERM=linux",
-+ "PATH=/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/sbin:/usr/local/bin",
-+ NULL
-+ };
-+ char *argv[] = {
-+ "/bin/sh", "-c",
-+ req->request.data + strlen("exec "),
-+ NULL
-+ };
-+
-+ sub_info = call_usermodehelper_setup("/bin/sh", argv, envp, GFP_ATOMIC, NULL, NULL, NULL);
-+ if (sub_info == NULL) {
-+ mconsole_reply(req, "call_usermodehelper_setup failed", 1, 0);
-+ return;
-+ }
-+ res = call_usermodehelper_stdoutpipe(sub_info, &out);
-+ if (res < 0) {
-+ kfree(sub_info);
-+ mconsole_reply(req, "call_usermodehelper_stdoutpipe failed", 1, 0);
-+ return;
-+ }
-+
-+ res = call_usermodehelper_exec(sub_info, UMH_WAIT_PROC);
-+ if (res < 0) {
-+ kfree(sub_info);
-+ mconsole_reply(req, "call_usermodehelper_exec failed", 1, 0);
-+ return;
-+ }
-+
-+ for (;;) {
-+ len = out->f_op->read(out, buf, sizeof(buf), &out->f_pos);
-+ if (len < 0) {
-+ mconsole_reply(req, "reading output failed", 1, 0);
-+ break;
-+ }
-+ if (len == 0)
-+ break;
-+ mconsole_reply_len(req, buf, len, 0, 1);
-+ }
-+ fput(out);
-+
-+ mconsole_reply_len(req, NULL, 0, 0, 0);
-+}
-+
-+
- void mconsole_proc(struct mc_request *req)
- {
- struct vfsmount *mnt = task_active_pid_ns(current)->proc_mnt;
-@@ -187,6 +242,7 @@ void mconsole_proc(struct mc_request *re
- stop - pause the UML; it will do nothing until it receives a 'go' \n\
- go - continue the UML after a 'stop' \n\
- log <string> - make UML enter <string> into the kernel log\n\
-+ exec <string> - pass <string> to /bin/sh -c synchronously\n\
- proc <file> - returns the contents of the UML's /proc/<file>\n\
- stack <pid> - returns the stack of the specified pid\n\
- "
---- a/arch/um/drivers/mconsole_user.c
-+++ b/arch/um/drivers/mconsole_user.c
-@@ -30,6 +30,7 @@ static struct mconsole_command commands[
- { "stop", mconsole_stop, MCONSOLE_PROC },
- { "go", mconsole_go, MCONSOLE_INTR },
- { "log", mconsole_log, MCONSOLE_INTR },
-+ { "exec", mconsole_exec, MCONSOLE_PROC },
- { "proc", mconsole_proc, MCONSOLE_PROC },
- { "stack", mconsole_stack, MCONSOLE_INTR },
- };
---- a/arch/um/os-Linux/file.c
-+++ b/arch/um/os-Linux/file.c
-@@ -555,6 +555,8 @@ int os_create_unix_socket(const char *fi
-
- addr.sun_family = AF_UNIX;
-
-+ if (len > sizeof(addr.sun_path))
-+ len = sizeof(addr.sun_path);
- snprintf(addr.sun_path, len, "%s", file);
-
- err = bind(sock, (struct sockaddr *) &addr, sizeof(addr));
---- a/include/linux/kmod.h
-+++ b/include/linux/kmod.h
-@@ -62,6 +62,7 @@ struct subprocess_info {
- int wait;
- int retval;
- int (*init)(struct subprocess_info *info, struct cred *new);
-+ struct file *stdout;
- void (*cleanup)(struct subprocess_info *info);
- void *data;
- };
-@@ -102,4 +103,6 @@ extern int usermodehelper_read_trylock(v
- extern long usermodehelper_read_lock_wait(long timeout);
- extern void usermodehelper_read_unlock(void);
-
-+int call_usermodehelper_stdoutpipe(struct subprocess_info *sub_info, struct file **filp);
-+
- #endif /* __LINUX_KMOD_H__ */
---- a/kernel/kmod.c
-+++ b/kernel/kmod.c
-@@ -39,6 +39,7 @@
- #include <linux/rwsem.h>
- #include <linux/ptrace.h>
- #include <linux/async.h>
-+#include <linux/pipe_fs_i.h>
- #include <asm/uaccess.h>
-
- #include <trace/events/module.h>
-@@ -222,6 +223,28 @@ static int call_usermodehelper_exec_asyn
- flush_signal_handlers(current, 1);
- spin_unlock_irq(¤t->sighand->siglock);
-
-+ /* Install output when needed */
-+ if (sub_info->stdout) {
-+ struct files_struct *f = current->files;
-+ struct fdtable *fdt;
-+
-+ sys_close(1);
-+ sys_close(2);
-+ get_file(sub_info->stdout);
-+ fd_install(1, sub_info->stdout);
-+ fd_install(2, sub_info->stdout);
-+ spin_lock(&f->file_lock);
-+ fdt = files_fdtable(f);
-+ __set_bit(1, fdt->open_fds);
-+ __clear_bit(1, fdt->close_on_exec);
-+ __set_bit(2, fdt->open_fds);
-+ __clear_bit(2, fdt->close_on_exec);
-+ spin_unlock(&f->file_lock);
-+
-+ /* disallow core files */
-+ current->signal->rlim[RLIMIT_CORE] = (struct rlimit){0, 0};
-+ }
-+
- /*
- * Our parent (unbound workqueue) runs with elevated scheduling
- * priority. Avoid propagating that into the userspace child.
-@@ -540,6 +563,20 @@ struct subprocess_info *call_usermodehel
- }
- EXPORT_SYMBOL(call_usermodehelper_setup);
-
-+int call_usermodehelper_stdoutpipe(struct subprocess_info *sub_info,
-+ struct file **filp)
-+{
-+ struct file *f[2];
-+
-+ if (create_pipe_files(f, 0)<0)
-+ return PTR_ERR(f);
-+ sub_info->stdout = f[1];
-+ *filp = f[0];
-+ return 0;
-+}
-+EXPORT_SYMBOL(call_usermodehelper_stdoutpipe);
-+
-+
- /**
- * call_usermodehelper_exec - start a usermode application
- * @sub_info: information about the subprocessa
+++ /dev/null
-===============================================================================
-
-This patch makes MAC addresses of network interfaces predictable. In
-particular, it adds a small routine that computes MAC addresses of based on
-a SHA1 hash of the virtual machine name and interface ID.
-
-TECHNICAL INFORMATION:
-
-Applies to vanilla kernel 3.9.4.
-
-===============================================================================
---- a/arch/um/Kconfig.net
-+++ b/arch/um/Kconfig.net
-@@ -21,6 +21,19 @@ config UML_NET
- enable at least one of the following transport options to actually
- make use of UML networking.
-
-+config UML_NET_RANDOM_MAC
-+ bool "Use random MAC addresses for network interfaces"
-+ default n
-+ depends on UML_NET
-+ help
-+ Virtual network devices inside a User-Mode Linux instance must be
-+ assigned a MAC (Ethernet) address. If none is specified on the UML
-+ command line, one must be automatically computed. If this option is
-+ enabled, a randomly generated address is used. Otherwise, if this
-+ option is disabled, the address is generated from a SHA1 hash of
-+ the umid of the UML instance and the interface name. The latter choice
-+ is useful to make MAC addresses predictable.
-+
- config UML_NET_ETHERTAP
- bool "Ethertap transport"
- depends on UML_NET
---- a/arch/um/drivers/net_kern.c
-+++ b/arch/um/drivers/net_kern.c
-@@ -25,6 +25,14 @@
- #include <net_kern.h>
- #include <net_user.h>
-
-+#include <crypto/sha.h>
-+#include <crypto/hash.h>
-+#include <linux/string.h>
-+#include <linux/crypto.h>
-+#include <linux/err.h>
-+#include <linux/scatterlist.h>
-+#include "os.h"
-+
- #define DRIVER_NAME "uml-netdev"
-
- static DEFINE_SPINLOCK(opened_lock);
-@@ -295,11 +303,53 @@ static void uml_net_user_timer_expire(un
- #endif
- }
-
-+#ifndef CONFIG_UML_NET_RANDOM_MAC
-+
-+/* Compute a SHA1 hash of the UML instance's id and
-+ * * an interface name. */
-+static int compute_hash(const char *umid, const char *ifname, char *hash)
-+{
-+ struct ahash_request *desc;
-+ struct crypto_ahash *tfm;
-+ struct scatterlist sg;
-+ char vmif[1024];
-+ int ret;
-+
-+ strcpy (vmif, umid);
-+ strcat (vmif, ifname);
-+
-+ tfm = crypto_alloc_ahash("sha1", 0, CRYPTO_ALG_ASYNC);
-+ if (IS_ERR(tfm))
-+ return -ENOMEM;
-+
-+ desc = ahash_request_alloc(tfm, GFP_KERNEL);
-+ if (!desc) {
-+ ret = -ENOMEM;
-+ goto out;
-+ }
-+
-+ crypto_ahash_clear_flags(tfm, ~0);
-+
-+ sg_init_table(&sg, 1);
-+ sg_set_buf(&sg, vmif, strlen(vmif));
-+
-+ ahash_request_set_crypt(desc, &sg, hash, strlen(vmif));
-+
-+ ret = crypto_ahash_digest(desc);
-+out:
-+ crypto_free_ahash(tfm);
-+
-+ return ret;
-+}
-+
-+#endif
-+
- static void setup_etheraddr(struct net_device *dev, char *str)
- {
- unsigned char *addr = dev->dev_addr;
- char *end;
- int i;
-+ u8 hash[SHA1_DIGEST_SIZE];
-
- if (str == NULL)
- goto random;
-@@ -340,9 +390,26 @@ static void setup_etheraddr(struct net_d
- return;
-
- random:
-+#ifdef CONFIG_UML_NET_RANDOM_MAC
- printk(KERN_INFO
- "Choosing a random ethernet address for device %s\n", dev->name);
- eth_hw_addr_random(dev);
-+#else
-+ printk(KERN_INFO
-+ "Computing a digest to use as ethernet address for device %s\n", dev->name);
-+ if (compute_hash(get_umid(), dev->name, hash) < 0) {
-+ printk(KERN_WARNING
-+ "Could not compute digest to use as ethernet address for device %s. "
-+ "Using random address instead.\n", dev->name);
-+ random_ether_addr(addr);
-+ }
-+ else {
-+ for (i=0; i < 6; i++)
-+ addr[i] = (hash[i] + hash[i+6]) % 0x100;
-+ }
-+ addr [0] &= 0xfe; /* clear multicast bit */
-+ addr [0] |= 0x02; /* set local assignment bit (IEEE802) */
-+#endif
- }
-
- static DEFINE_SPINLOCK(devices_lock);
projects / openwrt / staging / hauke.git / commitdiff