Author: nbd Date: 2015-09-27 19:29:38 +0200 (Sun, 27 Sep 2015) New Revision: 47061
Added: trunk/target/linux/uml/patches-4.1/ trunk/target/linux/uml/patches-4.1/101-mconsole-exec.patch trunk/target/linux/uml/patches-4.1/102-pseudo-random-mac.patch Removed: trunk/target/linux/uml/patches-3.18/ Modified: trunk/target/linux/generic/config-4.1 trunk/target/linux/uml/Makefile trunk/target/linux/uml/config/i386 trunk/target/linux/uml/config/x86_64 Log: uml: update to linux 4.1 Signed-off-by: Felix Fietkau <[email protected]> Modified: trunk/target/linux/generic/config-4.1 =================================================================== --- trunk/target/linux/generic/config-4.1 2015-09-27 10:54:39 UTC (rev 47060) +++ trunk/target/linux/generic/config-4.1 2015-09-27 17:29:38 UTC (rev 47061) @@ -1146,6 +1146,7 @@ # CONFIG_FSL_EDMA is not set # CONFIG_FSL_XGMAC_MDIO is not set CONFIG_FSNOTIFY=y +# CONFIG_FS_DAX is not set # CONFIG_FS_POSIX_ACL is not set # CONFIG_FT1000 is not set # CONFIG_FTGMAC100 is not set Modified: trunk/target/linux/uml/Makefile =================================================================== --- trunk/target/linux/uml/Makefile 2015-09-27 10:54:39 UTC (rev 47060) +++ trunk/target/linux/uml/Makefile 2015-09-27 17:29:38 UTC (rev 47061) @@ -23,10 +23,16 @@ FEATURES:=ext4 audio MAINTAINER:=Florian Fainelli <[email protected]> -KERNEL_PATCHVER:=3.18 +KERNEL_PATCHVER:=4.1 include $(INCLUDE_DIR)/target.mk +define Kernel/Patch + mkdir -p $(LINUX_DIR)/arch/um/include/uapi + mv $(LINUX_DIR)/arch/um/include/asm $(LINUX_DIR)/arch/um/include/uapi/ + $(Kernel/Patch/Default) +endef + LINUX_TARGET_CONFIG:=$(CURDIR)/config/$(ARCH) DEFAULT_PACKAGES += wpad-mini kmod-mac80211-hwsim Modified: trunk/target/linux/uml/config/i386 =================================================================== --- trunk/target/linux/uml/config/i386 2015-09-27 10:54:39 UTC (rev 47060) +++ trunk/target/linux/uml/config/i386 2015-09-27 17:29:38 UTC (rev 47061) @@ -1,12 +1,15 @@ # CONFIG_3_LEVEL_PGTABLES is not set # CONFIG_64BIT is not set +CONFIG_ARCH_DEFCONFIG="arch/um/configs/i386_defconfig" +# CONFIG_ARCH_HAS_GCOV_PROFILE_ALL is not set CONFIG_ARCH_HAS_SC_SIGNALS=y +# CONFIG_ARCH_HAS_SG_CHAIN is not set CONFIG_ARCH_REUSE_HOST_VSYSCALL_AREA=y -CONFIG_BKL=y +CONFIG_ARCH_WANT_IPC_PARSE_VERSION=y CONFIG_BLK_DEV_COW_COMMON=y CONFIG_BLK_DEV_UBD=y CONFIG_BLK_DEV_UBD_SYNC=y -# CONFIG_CFQ_GROUP_IOSCHED is not set +CONFIG_CLONE_BACKWARDS=y CONFIG_CON_CHAN="xterm" CONFIG_CON_ZERO_CHAN="fd:0,fd:1" CONFIG_CPU_SUP_AMD=y @@ -18,42 +21,49 @@ CONFIG_CRAMFS=y # CONFIG_CRASHLOG is not set CONFIG_CRC16=y +CONFIG_CRYPTO_CRC32C=y +CONFIG_CRYPTO_HASH=y +CONFIG_CRYPTO_HASH2=y +CONFIG_CRYPTO_RNG2=y +CONFIG_CRYPTO_WORKQUEUE=y CONFIG_DEBUG_BUGVERBOSE=y CONFIG_DEBUG_MEMORY_INIT=y CONFIG_DECOMPRESS_BZIP2=y CONFIG_DECOMPRESS_GZIP=y -CONFIG_DECOMPRESS_LZMA=y CONFIG_DEFAULT_CFQ=y # CONFIG_DEFAULT_DEADLINE is not set CONFIG_DEFAULT_IOSCHED="cfq" -CONFIG_DEFCONFIG_LIST="arch/$ARCH/defconfig" CONFIG_DNOTIFY=y -CONFIG_ELF_CORE=y +# CONFIG_EARLY_PRINTK is not set # CONFIG_EMBEDDED is not set -# CONFIG_EARLY_PRINTK is not set CONFIG_EXT4_FS=y +CONFIG_FS_MBCACHE=y CONFIG_GENERIC_BUG=y CONFIG_GENERIC_CLOCKEVENTS=y -CONFIG_GENERIC_CLOCKEVENTS_BUILD=y +CONFIG_GENERIC_CPU_DEVICES=y CONFIG_GENERIC_FIND_FIRST_BIT=y -CONFIG_GENERIC_FIND_LAST_BIT=y -CONFIG_GENERIC_FIND_NEXT_BIT=y -CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y +CONFIG_GENERIC_IO=y +CONFIG_GENERIC_IRQ_SHOW=y +# 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_BOOTMEM_INFO_NODE is not set +CONFIG_HAVE_FUTEX_CMPXCHG=y # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set -# CONFIG_HAVE_GENERIC_HARDIRQS is not set +CONFIG_HAVE_NET_DSA=y +CONFIG_HAVE_UID16=y CONFIG_HOSTAUDIO=m CONFIG_HOSTFS=y # CONFIG_HPPFS is not set +CONFIG_HZ_PERIODIC=y CONFIG_INITRAMFS_SOURCE="" CONFIG_INIT_ENV_ARG_LIMIT=128 CONFIG_IOSCHED_CFQ=y -CONFIG_IRQ_RELEASE_METHOD=y +CONFIG_IRQ_WORK=y CONFIG_ISO9660_FS=y -CONFIG_JBD=y CONFIG_JBD2=y CONFIG_KALLSYMS=y -CONFIG_KALLSYMS_EXTRA_PASS=y CONFIG_KERNEL_STACK_ORDER=2 CONFIG_LD_SCRIPT_STATIC=y CONFIG_LEGACY_PTYS=y @@ -70,13 +80,14 @@ # CONFIG_MCRUSOE is not set # CONFIG_MCYRIXIII is not set # CONFIG_MEFFICEON is not set +# CONFIG_MELAN is not set # CONFIG_MGEODEGX1 is not set # CONFIG_MGEODE_LX is not set -# CONFIG_MINI_FO is not set # CONFIG_MK6 is not set # CONFIG_MK7 is not set # CONFIG_MK8 is not set # CONFIG_MMAPPER is not set +CONFIG_MODULES_USE_ELF_REL=y # CONFIG_MPENTIUM4 is not set CONFIG_MPENTIUMII=y # CONFIG_MPENTIUMIII is not set @@ -92,15 +103,18 @@ # CONFIG_NOCONFIG_CHAN is not set CONFIG_NO_DMA=y CONFIG_NO_IOMEM=y +# CONFIG_NSC_GPIO is not set CONFIG_NULL_CHAN=y +CONFIG_OLD_SIGACTION=y +CONFIG_OLD_SIGSUSPEND3=y CONFIG_PAGEFLAGS_EXTENDED=y +CONFIG_PGTABLE_LEVELS=2 CONFIG_PORT_CHAN=y CONFIG_POSIX_MQUEUE=y CONFIG_POSIX_MQUEUE_SYSCTL=y -# CONFIG_PREEMPT_RCU is not set CONFIG_PRINT_QUOTA_WARNING=y +# CONFIG_PROCESSOR_SELECT is not set CONFIG_PROC_PAGE_MONITOR=y -# CONFIG_PROCESSOR_SELECT is not set CONFIG_PTY_CHAN=y CONFIG_QFMT_V1=y CONFIG_QFMT_V2=y @@ -108,24 +122,25 @@ CONFIG_QUOTACTL=y # CONFIG_QUOTA_NETLINK_INTERFACE is not set CONFIG_QUOTA_TREE=y +# CONFIG_RCU_STALL_COMMON is not set CONFIG_RD_BZIP2=y CONFIG_RD_GZIP=y CONFIG_RELAY=y -# CONFIG_RWSEM_GENERIC_SPINLOCK is not set -CONFIG_RWSEM_XCHGADD_ALGORITHM=y +# CONFIG_RWSEM_XCHGADD_ALGORITHM is not set +# CONFIG_SBC8360_WDT is not set # CONFIG_SCSI_DMA is not set -# CONFIG_SMP_BROKEN is not set CONFIG_SOFT_WATCHDOG=m 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_STACKTRACE_SUPPORT is not set +CONFIG_STACKTRACE=y CONFIG_STATIC_LINK=y CONFIG_STDERR_CONSOLE=y -CONFIG_STDIO_CONSOLE=y +CONFIG_TICK_CPU_ACCOUNTING=y # CONFIG_TRACE_IRQFLAGS_SUPPORT is not set CONFIG_TTY_CHAN=y CONFIG_UID16=y @@ -135,6 +150,7 @@ CONFIG_UML_NET_ETHERTAP=y CONFIG_UML_NET_MCAST=y # CONFIG_UML_NET_PCAP is not set +# CONFIG_UML_NET_RANDOM_MAC is not set CONFIG_UML_NET_SLIP=y CONFIG_UML_NET_SLIRP=y CONFIG_UML_NET_TUNTAP=y @@ -145,22 +161,18 @@ CONFIG_UML_X86=y # CONFIG_USER_NS is not set CONFIG_VM_EVENT_COUNTERS=y +CONFIG_WATCHDOG_CORE=y CONFIG_X86_32=y -CONFIG_X86_BSWAP=y +# CONFIG_X86_64 is not set CONFIG_X86_CMOV=y -CONFIG_X86_CMPXCHG=y CONFIG_X86_CMPXCHG64=y -CONFIG_X86_CPU=y CONFIG_X86_GENERIC=y CONFIG_X86_INTEL_USERCOPY=y CONFIG_X86_INTERNODE_CACHE_SHIFT=6 -CONFIG_X86_INVLPG=y CONFIG_X86_L1_CACHE_SHIFT=6 CONFIG_X86_MINIMUM_CPU_FAMILY=5 -CONFIG_X86_POPAD_OK=y CONFIG_X86_TSC=y CONFIG_X86_USE_PPRO_CHECKSUM=y -CONFIG_X86_WP_WORKS_OK=y -CONFIG_X86_XADD=y CONFIG_XTERM_CHAN=y +CONFIG_ZLIB_INFLATE=y CONFIG_ZONE_DMA_FLAG=0 Modified: trunk/target/linux/uml/config/x86_64 =================================================================== --- trunk/target/linux/uml/config/x86_64 2015-09-27 10:54:39 UTC (rev 47060) +++ trunk/target/linux/uml/config/x86_64 2015-09-27 17:29:38 UTC (rev 47061) @@ -1,12 +1,14 @@ CONFIG_3_LEVEL_PGTABLES=y CONFIG_64BIT=y +CONFIG_ARCH_DEFCONFIG="arch/um/configs/x86_64_defconfig" +# CONFIG_ARCH_HAS_GCOV_PROFILE_ALL is not set # CONFIG_ARCH_HAS_SC_SIGNALS is not set +# CONFIG_ARCH_HAS_SG_CHAIN 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_UBD=y CONFIG_BLK_DEV_UBD_SYNC=y -# CONFIG_CFQ_GROUP_IOSCHED is not set CONFIG_CON_CHAN="xterm" CONFIG_CON_ZERO_CHAN="fd:0,fd:1" CONFIG_CPU_SUP_AMD=y @@ -19,11 +21,12 @@ 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_THREEFISH 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 @@ -31,25 +34,26 @@ CONFIG_DEFAULT_CFQ=y # CONFIG_DEFAULT_DEADLINE is not set CONFIG_DEFAULT_IOSCHED="cfq" -CONFIG_DEFCONFIG_LIST="arch/$ARCH/defconfig" CONFIG_DNOTIFY=y # CONFIG_EARLY_PRINTK is not set CONFIG_EXT4_FS=y CONFIG_FS_MBCACHE=y CONFIG_GENERIC_BUG=y CONFIG_GENERIC_CLOCKEVENTS=y -CONFIG_GENERIC_CLOCKEVENTS_BUILD=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_HAVE_64BIT_ALIGNED_ACCESS=y +CONFIG_HAVE_ARCH_AUDITSYSCALL=y +# CONFIG_HAVE_ARCH_BITREVERSE is not set # CONFIG_HAVE_BOOTMEM_INFO_NODE is not set +CONFIG_HAVE_FUTEX_CMPXCHG=y # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set -CONFIG_HAVE_GENERIC_HARDIRQS=y CONFIG_HAVE_NET_DSA=y CONFIG_HAVE_UID16=y +CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y CONFIG_HOSTAUDIO=m CONFIG_HOSTFS=y # CONFIG_HPPFS is not set @@ -59,7 +63,6 @@ CONFIG_IOSCHED_CFQ=y CONFIG_IRQ_WORK=y CONFIG_ISO9660_FS=y -CONFIG_JBD=y CONFIG_JBD2=y CONFIG_KALLSYMS=y CONFIG_KERNEL_STACK_ORDER=2 @@ -82,11 +85,11 @@ CONFIG_NO_IOMEM=y CONFIG_NULL_CHAN=y CONFIG_PAGEFLAGS_EXTENDED=y +CONFIG_PGTABLE_LEVELS=3 CONFIG_PHYS_ADDR_T_64BIT=y CONFIG_PORT_CHAN=y CONFIG_POSIX_MQUEUE=y CONFIG_POSIX_MQUEUE_SYSCTL=y -# CONFIG_PREEMPT_RCU is not set # CONFIG_PRINT_QUOTA_WARNING is not set # CONFIG_PROCESSOR_SELECT is not set CONFIG_PROC_PAGE_MONITOR=y @@ -109,17 +112,16 @@ 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_STACKTRACE_SUPPORT is not set +CONFIG_STACKTRACE=y CONFIG_STATIC_LINK=y CONFIG_STDERR_CONSOLE=y -CONFIG_STDIO_CONSOLE=y CONFIG_TICK_CPU_ACCOUNTING=y # CONFIG_TRACE_IRQFLAGS_SUPPORT is not set CONFIG_TTY_CHAN=y CONFIG_UID16=y -CONFIG_UIDGID_CONVERTED=y CONFIG_UML=y CONFIG_UML_NET=y CONFIG_UML_NET_DAEMON=y @@ -136,9 +138,6 @@ CONFIG_UML_WATCHDOG=m CONFIG_UML_X86=y # CONFIG_UNISYSSPAR is not set -# CONFIG_USB_ARCH_HAS_EHCI is not set -# CONFIG_USB_ARCH_HAS_OHCI is not set -# CONFIG_USB_ARCH_HAS_XHCI is not set # CONFIG_USER_NS is not set CONFIG_VM_EVENT_COUNTERS=y CONFIG_WATCHDOG_CORE=y Copied: trunk/target/linux/uml/patches-4.1/101-mconsole-exec.patch (from rev 47059, trunk/target/linux/uml/patches-3.18/101-mconsole-exec.patch) =================================================================== --- trunk/target/linux/uml/patches-4.1/101-mconsole-exec.patch (rev 0) +++ trunk/target/linux/uml/patches-4.1/101-mconsole-exec.patch 2015-09-27 17:29:38 UTC (rev 47061) @@ -0,0 +1,211 @@ +# +# 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 +@@ -534,6 +534,8 @@ 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; + }; +@@ -104,4 +105,6 @@ 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> +@@ -223,6 +224,28 @@ static int ____call_usermodehelper(void + 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}; ++ } ++ + /* We can run anywhere, unlike our parent keventd(). */ + set_cpus_allowed_ptr(current, cpu_all_mask); + +@@ -522,6 +545,20 @@ 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 Copied: trunk/target/linux/uml/patches-4.1/102-pseudo-random-mac.patch (from rev 47059, trunk/target/linux/uml/patches-3.18/102-pseudo-random-mac.patch) =================================================================== --- trunk/target/linux/uml/patches-4.1/102-pseudo-random-mac.patch (rev 0) +++ trunk/target/linux/uml/patches-4.1/102-pseudo-random-mac.patch 2015-09-27 17:29:38 UTC (rev 47061) @@ -0,0 +1,124 @@ +=============================================================================== + +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 +25,13 @@ + #include <net_kern.h> + #include <net_user.h> + ++#include <crypto/sha.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 +302,47 @@ 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) { ++ char vmif[1024]; ++ struct scatterlist sg; ++ struct crypto_hash *tfm; ++ struct hash_desc desc; ++ ++ strcpy (vmif, umid); ++ strcat (vmif, ifname); ++ ++ tfm = crypto_alloc_hash("sha1", 0, CRYPTO_ALG_ASYNC); ++ if (IS_ERR(tfm)) ++ return 1; ++ ++ desc.tfm = tfm; ++ desc.flags = 0; ++ ++ sg_init_table(&sg, 1); ++ sg_set_buf(&sg, vmif, strlen(vmif)); ++ ++ if (crypto_hash_digest(&desc, &sg, strlen(vmif), hash)) { ++ crypto_free_hash(tfm); ++ return 1; ++ } ++ ++ crypto_free_hash(tfm); ++ ++ return 0; ++} ++ ++#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 +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)) { ++ 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); _______________________________________________ openwrt-commits mailing list [email protected] https://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-commits
