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[182.249.92.64]) by mx.google.com with ESMTPSA id qz9sm40405465pbc.3.2013.11.06.02.26.33 for (version=TLSv1.1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Wed, 06 Nov 2013 02:26:37 -0800 (PST) From: AKASHI Takahiro To: catalin.marinas@arm.com, will.deacon@arm.com, linux-arm-kernel@lists.infradead.org, linux-audit@redhat.com Cc: linaro-kernel@lists.linaro.org, patches@linaro.org, AKASHI Takahiro Subject: [PATCH 3/4] arm64: audit: Add AArch32 support Date: Wed, 6 Nov 2013 19:25:45 +0900 Message-Id: <1383733546-2846-4-git-send-email-takahiro.akashi@linaro.org> X-Mailer: git-send-email 1.8.3.2 In-Reply-To: <1383733546-2846-1-git-send-email-takahiro.akashi@linaro.org> References: <1383733546-2846-1-git-send-email-takahiro.akashi@linaro.org> X-Removed-Original-Auth: Dkim didn't pass. X-Original-Sender: takahiro.akashi@linaro.org X-Original-Authentication-Results: mx.google.com; spf=neutral (google.com: 209.85.220.175 is neither permitted nor denied by best guess record for domain of patch+caf_=patchwork-forward=linaro.org@linaro.org) smtp.mail=patch+caf_=patchwork-forward=linaro.org@linaro.org Precedence: list Mailing-list: list patchwork-forward@linaro.org; contact patchwork-forward+owners@linaro.org List-ID: X-Google-Group-Id: 836684582541 List-Post: , List-Help: , List-Archive: List-Unsubscribe: , --- arch/arm64/include/asm/audit32.h | 12 ++ arch/arm64/include/asm/unistd32.h | 387 +++++++++++++++++++++++++++++++++++++ arch/arm64/kernel/Makefile | 3 + arch/arm64/kernel/audit.c | 18 ++ arch/arm64/kernel/audit32.c | 46 +++++ 5 files changed, 466 insertions(+) create mode 100644 arch/arm64/include/asm/audit32.h create mode 100644 arch/arm64/kernel/audit32.c diff --git a/arch/arm64/include/asm/audit32.h b/arch/arm64/include/asm/audit32.h new file mode 100644 index 0000000..debfe57 --- /dev/null +++ b/arch/arm64/include/asm/audit32.h @@ -0,0 +1,12 @@ +#ifndef __ASM_AUDIT32_H +#define __ASM_AUDIT32_H + +extern unsigned aarch32_dir_class[]; +extern unsigned aarch32_read_class[]; +extern unsigned aarch32_write_class[]; +extern unsigned aarch32_chattr_class[]; +extern unsigned aarch32_signal_class[]; + +extern int aarch32_classify_syscall(unsigned); + +#endif /* __ASM_AUDIT32_H */ diff --git a/arch/arm64/include/asm/unistd32.h b/arch/arm64/include/asm/unistd32.h index 58125bf..fdf5e56 100644 --- a/arch/arm64/include/asm/unistd32.h +++ b/arch/arm64/include/asm/unistd32.h @@ -21,6 +21,393 @@ #define __SYSCALL(x, y) #endif +#ifdef __AARCH32_AUDITSYSCALL +/* + * FIXME: Currenty only audit uses (part of) these definitions. + * See audit32.c + */ +#define __NR_restart_syscall 0 +#define __NR_exit 1 +#define __NR_fork 2 +#define __NR_read 3 +#define __NR_write 4 +#define __NR_open 5 +#define __NR_close 6 +/* 7 was waitpid */ +#define __NR_creat 8 +#define __NR_link 9 +#define __NR_unlink 10 +#define __NR_execve 11 +#define __NR_chdir 12 +/* #define __NR_ni_syscall 13 :time */ +#define __NR_mknod 14 +#define __NR_chmod 15 +#define __NR_lchown16 16 +/* 17 was break */ +/* 18 was stat */ +#define __NR_lseek 19 +#define __NR_getpid 20 +#define __NR_mount 21 +/* #define __NR_ni_syscall 22 :umount */ +#define __NR_setuid16 23 +#define __NR_getuid16 24 +/* #define __NR_ni_syscall 25 :stime */ +#define __NR_ptrace 26 +/* #define __NR_ni_syscall 27 :alarm */ +/* 28 was fstat */ +#define __NR_pause 29 +/* #define __NR_ni_syscall 30 :utime */ +/* 31 was stty */ +/* 32 was gtty */ +#define __NR_access 33 +#define __NR_nice 34 +/* 35 was ftime */ +#define __NR_sync 36 +#define __NR_kill 37 +#define __NR_rename 38 +#define __NR_mkdir 39 +#define __NR_rmdir 40 +#define __NR_dup 41 +#define __NR_pipe 42 +#define __NR_times 43 +/* 44 was prof */ +#define __NR_brk 45 +#define __NR_setgid16 46 +#define __NR_getgid16 47 +/* 48 was signal */ +#define __NR_geteuid16 49 +#define __NR_getegid16 50 +#define __NR_acct 51 +#define __NR_umount 52 +/* 53 was lock */ +#define __NR_ioctl 54 +#define __NR_fcntl 55 +/* 56 was mpx */ +#define __NR_setpgid 57 +/* 58 was ulimit */ +/* 59 was olduname */ +#define __NR_umask 60 +#define __NR_chroot 61 +#define __NR_ustat 62 +#define __NR_dup2 63 +#define __NR_getppid 64 +#define __NR_getpgrp 65 +#define __NR_setsid 66 +#define __NR_sigaction 67 +/* 68 was sgetmask */ +/* 69 was ssetmask */ +#define __NR_setreuid16 70 +#define __NR_setregid16 71 +#define __NR_sigsuspend 72 +#define __NR_sigpending 73 +#define __NR_sethostname 74 +#define __NR_setrlimit 75 +/* #define __NR_ni_syscall 76 :getrlimit */ +#define __NR_getrusage 77 +#define __NR_gettimeofday 78 +#define __NR_settimeofday 79 +#define __NR_getgroups16 80 +#define __NR_setgroups16 81 +/* #define __NR_ni_syscall 82 :select */ +#define __NR_symlink 83 +/* 84 was lstat */ +#define __NR_readlink 85 +#define __NR_uselib 86 +#define __NR_swapon 87 +#define __NR_reboot 88 +/* #define __NR_ni_syscall 89 :readdir */ +/* #define __NR_ni_syscall 90 :mmap */ +#define __NR_munmap 91 +#define __NR_truncate 92 +#define __NR_ftruncate 93 +#define __NR_fchmod 94 +#define __NR_fchown16 95 +#define __NR_getpriority 96 +#define __NR_setpriority 97 +/* 98 was profil */ +#define __NR_statfs 99 +#define __NR_fstatfs 100 +/* 101 was ioperm */ +/* 102 was socketcall */ +#define __NR_syslog 103 +#define __NR_setitimer 104 +#define __NR_getitimer 105 +#define __NR_newstat 106 +#define __NR_newlstat 107 +#define __NR_newfstat 108 +/* 109 was uname */ +/* 110 was iopl */ +#define __NR_vhangup 111 +/* 112 was idle */ +/* #define __NR_ni_syscall 113 :syscall */ +#define __NR_wait4 114 +#define __NR_swapoff 115 +#define __NR_sysinfo 116 +/* #define __NR_ni_syscall 117 :ipc */ +#define __NR_fsync 118 +#define __NR_sigreturn 119 +#define __NR_clone 120 +#define __NR_setdomainname 121 +#define __NR_newuname 122 +/* 123 was modify_ldt */ +#define __NR_adjtimex 124 +#define __NR_mprotect 125 +#define __NR_sigprocmask 126 +/* 127 was create_module */ +#define __NR_init_module 128 +#define __NR_delete_module 129 +/* 130 was get_kernel_syms */ +#define __NR_quotactl 131 +#define __NR_getpgid 132 +#define __NR_fchdir 133 +#define __NR_bdflush 134 +#define __NR_sysfs 135 +#define __NR_personality 136 +/* 137 was afs_syscall */ +#define __NR_setfsuid16 138 +#define __NR_setfsgid16 139 +#define __NR_llseek 140 +#define __NR_getdents 141 +#define __NR_select 142 +#define __NR_flock 143 +#define __NR_msync 144 +#define __NR_readv 145 +#define __NR_writev 146 +#define __NR_getsid 147 +#define __NR_fdatasync 148 +#define __NR_sysctl 149 +#define __NR_mlock 150 +#define __NR_munlock 151 +#define __NR_mlockall 152 +#define __NR_munlockall 153 +#define __NR_sched_setparam 154 +#define __NR_sched_getparam 155 +#define __NR_sched_setscheduler 156 +#define __NR_sched_getscheduler 157 +#define __NR_sched_yield 158 +#define __NR_sched_get_priority_max 159 +#define __NR_sched_get_priority_min 160 +#define __NR_sched_rr_get_interval 161 +#define __NR_nanosleep 162 +#define __NR_mremap 163 +#define __NR_setresuid16 164 +#define __NR_getresuid16 165 +/* 166 was vm86 */ +/* 167 was query_module */ +#define __NR_poll 168 +/* #define __NR_ni_syscall 169 :nfsservctl */ +#define __NR_setresgid16 170 +#define __NR_getresgid16 171 +#define __NR_prctl 172 +#define __NR_rt_sigreturn 173 +#define __NR_rt_sigaction 174 +#define __NR_rt_sigprocmask 175 +#define __NR_rt_sigpending 176 +#define __NR_rt_sigtimedwait 177 +#define __NR_rt_sigqueueinfo 178 +#define __NR_rt_sigsuspend 179 +#define __NR_pread64 180 +#define __NR_pwrite64 181 +#define __NR_chown16 182 +#define __NR_getcwd 183 +#define __NR_capget 184 +#define __NR_capset 185 +#define __NR_sigaltstack 186 +#define __NR_sendfile 187 +/* 188 reserved */ +/* 189 reserved */ +#define __NR_vfork 190 +#define __NR_getrlimit 191 +#define __NR_mmap_pgoff 192 +#define __NR_truncate64 193 +#define __NR_ftruncate64 194 +#define __NR_stat64 195 +#define __NR_lstat64 196 +#define __NR_fstat64 197 +#define __NR_lchown 198 +#define __NR_getuid 199 +#define __NR_getgid 200 +#define __NR_geteuid 201 +#define __NR_getegid 202 +#define __NR_setreuid 203 +#define __NR_setregid 204 +#define __NR_getgroups 205 +#define __NR_setgroups 206 +#define __NR_fchown 207 +#define __NR_setresuid 208 +#define __NR_getresuid 209 +#define __NR_setresgid 210 +#define __NR_getresgid 211 +#define __NR_chown 212 +#define __NR_setuid 213 +#define __NR_setgid 214 +#define __NR_setfsuid 215 +#define __NR_setfsgid 216 +#define __NR_getdents64 217 +#define __NR_pivot_root 218 +#define __NR_mincore 219 +#define __NR_madvise 220 +#define __NR_fcntl64 221 +/* 222 was tux */ +/* 223 reserved */ +#define __NR_gettid 224 +#define __NR_readahead 225 +#define __NR_setxattr 226 +#define __NR_lsetxattr 227 +#define __NR_fsetxattr 228 +#define __NR_getxattr 229 +#define __NR_lgetxattr 230 +#define __NR_fgetxattr 231 +#define __NR_listxattr 232 +#define __NR_llistxattr 233 +#define __NR_flistxattr 234 +#define __NR_removexattr 235 +#define __NR_lremovexattr 236 +#define __NR_fremovexattr 237 +#define __NR_tkill 238 +#define __NR_sendfile64 239 +#define __NR_futex 240 +#define __NR_sched_setaffinity 241 +#define __NR_sched_getaffinity 242 +#define __NR_io_setup 243 +#define __NR_io_destroy 244 +#define __NR_io_getevents 245 +#define __NR_io_submit 246 +#define __NR_io_cancel 247 +#define __NR_exit_group 248 +#define __NR_lookup_dcookie 249 +#define __NR_epoll_create 250 +#define __NR_epoll_ctl 251 +#define __NR_epoll_wait 252 +#define __NR_remap_file_pages 253 +/* 254 was set_thread_area */ +/* 255 was get_thread_area */ +#define __NR_set_tid_address 256 +#define __NR_timer_create 257 +#define __NR_timer_settime 258 +#define __NR_timer_gettime 259 +#define __NR_timer_getoverrun 260 +#define __NR_timer_delete 261 +#define __NR_clock_settime 262 +#define __NR_clock_gettime 263 +#define __NR_clock_getres 264 +#define __NR_clock_nanosleep 265 +#define __NR_statfs64 266 +#define __NR_fstatfs64 267 +#define __NR_tgkill 268 +#define __NR_utimes 269 +#define __NR_fadvise64_64 270 +#define __NR_pciconfig_iobase 271 +#define __NR_pciconfig_read 272 +#define __NR_pciconfig_write 273 +#define __NR_mq_open 274 +#define __NR_mq_unlink 275 +#define __NR_mq_timedsend 276 +#define __NR_mq_timedreceive 277 +#define __NR_mq_notify 278 +#define __NR_mq_getsetattr 279 +#define __NR_waitid 280 +#define __NR_socket 281 +#define __NR_bind 282 +#define __NR_connect 283 +#define __NR_listen 284 +#define __NR_accept 285 +#define __NR_getsockname 286 +#define __NR_getpeername 287 +#define __NR_socketpair 288 +#define __NR_send 289 +#define __NR_sendto 290 +#define __NR_recv 291 +#define __NR_recvfrom 292 +#define __NR_shutdown 293 +#define __NR_setsockopt 294 +#define __NR_getsockopt 295 +#define __NR_sendmsg 296 +#define __NR_recvmsg 297 +#define __NR_semop 298 +#define __NR_semget 299 +#define __NR_semctl 300 +#define __NR_msgsnd 301 +#define __NR_msgrcv 302 +#define __NR_msgget 303 +#define __NR_msgctl 304 +#define __NR_shmat 305 +#define __NR_shmdt 306 +#define __NR_shmget 307 +#define __NR_shmctl 308 +#define __NR_add_key 309 +#define __NR_request_key 310 +#define __NR_keyctl 311 +#define __NR_semtimedop 312 +/* #define __NR_ni_syscall 313 :vserver */ +#define __NR_ioprio_set 314 +#define __NR_ioprio_get 315 +#define __NR_inotify_init 316 +#define __NR_inotify_add_watch 317 +#define __NR_inotify_rm_watch 318 +#define __NR_mbind 319 +#define __NR_get_mempolicy 320 +#define __NR_set_mempolicy 321 +#define __NR_openat 322 +#define __NR_mkdirat 323 +#define __NR_mknodat 324 +#define __NR_fchownat 325 +#define __NR_futimesat 326 +#define __NR_fstatat64 327 +#define __NR_unlinkat 328 +#define __NR_renameat 329 +#define __NR_linkat 330 +#define __NR_symlinkat 331 +#define __NR_readlinkat 332 +#define __NR_fchmodat 333 +#define __NR_faccessat 334 +#define __NR_pselect6 335 +#define __NR_ppoll 336 +#define __NR_unshare 337 +#define __NR_set_robust_list 338 +#define __NR_get_robust_list 339 +#define __NR_splice 340 +#define __NR_sync_file_range2 341 +#define __NR_tee 342 +#define __NR_vmsplice 343 +#define __NR_move_pages 344 +#define __NR_getcpu 345 +#define __NR_epoll_pwait 346 +#define __NR_kexec_load 347 +#define __NR_utimensat 348 +#define __NR_signalfd 349 +#define __NR_timerfd_create 350 +#define __NR_eventfd 351 +#define __NR_fallocate 352 +#define __NR_timerfd_settime 353 +#define __NR_timerfd_gettime 354 +#define __NR_signalfd4 355 +#define __NR_eventfd2 356 +#define __NR_epoll_create1 357 +#define __NR_dup3 358 +#define __NR_pipe2 359 +#define __NR_inotify_init1 360 +#define __NR_preadv 361 +#define __NR_pwritev 362 +#define __NR_rt_tgsigqueueinfo 363 +#define __NR_perf_event_open 364 +#define __NR_recvmmsg 365 +#define __NR_accept4 366 +#define __NR_fanotify_init 367 +#define __NR_fanotify_mark 368 +#define __NR_prlimit64 369 +#define __NR_name_to_handle_at 370 +#define __NR_open_by_handle_at 371 +#define __NR_clock_adjtime 372 +#define __NR_syncfs 373 +#define __NR_sendmmsg 374 +#define __NR_setns 375 +#define __NR_process_vm_readv 376 +#define __NR_process_vm_writev 377 +/* 378 was kcmp */ +/* 389 was finit_module */ +#endif + __SYSCALL(0, sys_restart_syscall) __SYSCALL(1, sys_exit) __SYSCALL(2, sys_fork) diff --git a/arch/arm64/kernel/Makefile b/arch/arm64/kernel/Makefile index 3abab29..0286b91 100644 --- a/arch/arm64/kernel/Makefile +++ b/arch/arm64/kernel/Makefile @@ -12,6 +12,9 @@ arm64-obj-y := cputable.o debug-monitors.o entry.o irq.o fpsimd.o \ hyp-stub.o psci.o arm64-obj-$(CONFIG_AUDIT) += audit.o +ifeq ($(CONFIG_COMPAT),y) +arm64-obj-$(CONFIG_AUDIT) += audit32.o +endif arm64-obj-$(CONFIG_COMPAT) += sys32.o kuser32.o signal32.o \ sys_compat.o arm64-obj-$(CONFIG_MODULES) += arm64ksyms.o module.o diff --git a/arch/arm64/kernel/audit.c b/arch/arm64/kernel/audit.c index 9aab2b3..799eb55 100644 --- a/arch/arm64/kernel/audit.c +++ b/arch/arm64/kernel/audit.c @@ -1,5 +1,8 @@ #include #include +#ifdef CONFIG_COMPAT +#include +#endif #include static unsigned dir_class[] = { @@ -29,12 +32,20 @@ static unsigned signal_class[] = { int audit_classify_arch(int arch) { +#ifdef CONFIG_COMPAT + if (arch == AUDIT_ARCH_ARM || arch == AUDIT_ARCH_ARMEB) + return 1; /* 32-bit on biarch */ +#endif return 0; /* native */ } /* AUTH_PERM support */ int audit_classify_syscall(int abi, unsigned syscall) { +#ifdef CONFIG_COMPAT + if (abi == AUDIT_ARCH_ARM || abi == AUDIT_ARCH_ARMEB) + return aarch32_classify_syscall(syscall); +#endif switch(syscall) { case __NR_openat: return 3; @@ -47,6 +58,13 @@ int audit_classify_syscall(int abi, unsigned syscall) static int __init audit_classes_init(void) { +#ifdef CONFIG_COMPAT + audit_register_class(AUDIT_CLASS_DIR_WRITE_32, aarch32_dir_class); + audit_register_class(AUDIT_CLASS_READ_32, aarch32_read_class); + audit_register_class(AUDIT_CLASS_WRITE_32, aarch32_write_class); + audit_register_class(AUDIT_CLASS_CHATTR_32, aarch32_chattr_class); + audit_register_class(AUDIT_CLASS_SIGNAL_32, aarch32_signal_class); +#endif audit_register_class(AUDIT_CLASS_DIR_WRITE, dir_class); audit_register_class(AUDIT_CLASS_READ, read_class); audit_register_class(AUDIT_CLASS_WRITE, write_class); diff --git a/arch/arm64/kernel/audit32.c b/arch/arm64/kernel/audit32.c new file mode 100644 index 0000000..2aa4d7d --- /dev/null +++ b/arch/arm64/kernel/audit32.c @@ -0,0 +1,46 @@ +#define __AARCH32_AUDITSYSCALL +#include + +unsigned aarch32_dir_class[] = { +#include +~0U +}; + +unsigned aarch32_read_class[] = { +#include +~0U +}; + +unsigned aarch32_write_class[] = { +#include +~0U +}; + +unsigned aarch32_chattr_class[] = { +#include +~0U +}; + +unsigned aarch32_signal_class[] = { +#include +~0U +}; + +int aarch32_classify_syscall(unsigned syscall) +{ + switch(syscall) { + case __NR_open: + return 2; + case __NR_openat: + return 3; + /* + * obsolute in EABI + * case __NR_socketcall: + * return 4; + */ + case __NR_execve: + return 5; + default: + return 1; /* 32-bit on biarch */ + } +}