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Perform pseudo-filesystem permission checks inside inode_reserve() and inode_remove() while the inode tree lock is held, and hold that lock across pseudorename mutations so symlink swaps cannot bypass directory checks. Hold a read lock around pseudo-fs open permission checks. On setuid/setgid exec, update saved set-IDs, mark the task group secure, sanitize dangerous environment variables, clear debug/dumpable flags, and add issetugid(), secure_getenv(), and PR_SET/GET_DUMPABLE support. Signed-off-by: Abhishek Mishra <mishra.abhishek2808@gmail.com>
73 lines
2.7 KiB
Text
73 lines
2.7 KiB
Text
############################################################################
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# libs/libc/unistd/Make.defs
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#
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# SPDX-License-Identifier: Apache-2.0
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#
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# Licensed to the Apache Software Foundation (ASF) under one or more
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# contributor license agreements. See the NOTICE file distributed with
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# this work for additional information regarding copyright ownership. The
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# ASF licenses this file to you under the Apache License, Version 2.0 (the
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# "License"); you may not use this file except in compliance with the
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# License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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#
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############################################################################
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# Add the unistd C files to the build
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CSRCS += lib_access.c lib_daemon.c lib_swab.c lib_pathconf.c lib_sysconf.c
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CSRCS += lib_getcwd.c lib_getentropy.c lib_getopt_common.c lib_getopt.c
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CSRCS += lib_getopt_long.c lib_getopt_longonly.c lib_getoptvars.c lib_getoptargp.c
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CSRCS += lib_getopterrp.c lib_getoptindp.c lib_getoptoptp.c lib_times.c
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CSRCS += lib_alarm.c lib_fstatvfs.c lib_statvfs.c lib_sleep.c lib_nice.c
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CSRCS += lib_getrusage.c lib_utime.c lib_utimes.c
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CSRCS += lib_setrlimit.c lib_getrlimit.c lib_setpriority.c lib_getpriority.c
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CSRCS += lib_futimes.c lib_lutimes.c lib_gethostname.c lib_sethostname.c
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CSRCS += lib_fchownat.c lib_linkat.c lib_readlinkat.c lib_symlinkat.c
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CSRCS += lib_unlinkat.c lib_usleep.c lib_getpgrp.c lib_getpgid.c
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CSRCS += lib_getsid.c lib_getgroups.c lib_setpgid.c lib_setsid.c
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CSRCS += lib_lockf.c lib_flock.c lib_getpass.c
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CSRCS += lib_chdir.c lib_fchdir.c lib_confstr.c lib_ulimit.c
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ifneq ($(CONFIG_SCHED_USER_IDENTITY),y)
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CSRCS += lib_setuid.c lib_setgid.c lib_getuid.c lib_getgid.c
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CSRCS += lib_seteuid.c lib_setegid.c lib_geteuid.c lib_getegid.c
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CSRCS += lib_setreuid.c lib_setregid.c lib_getresuid.c lib_getresgid.c
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CSRCS += lib_issetugid.c
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endif
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ifneq ($(CONFIG_DISABLE_ENVIRON),y)
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CSRCS += lib_restoredir.c
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endif
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ifeq ($(CONFIG_LIBC_EXECFUNCS),y)
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CSRCS += lib_execl.c lib_execle.c lib_execv.c
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endif
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ifneq ($(CONFIG_DISABLE_MOUNTPOINTS),y)
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CSRCS += lib_truncate.c lib_posix_fallocate.c
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endif
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ifeq ($(CONFIG_ARCH_HAVE_FORK),y)
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CSRCS += lib_fork.c
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endif
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ifeq ($(CONFIG_CRYPTO),y)
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CSRCS += lib_crypt.c lib_crypt_r.c
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endif
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ifeq ($(CONFIG_PIPES),y)
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CSRCS += lib_pipe.c
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endif
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# Add the unistd directory to the build
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DEPPATH += --dep-path unistd
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VPATH += :unistd
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