04b05605d3
The seccomp filter with older Android SDKs kills the process when libuv tries to make system calls it doesn't know about. This commit adds ifdef guards that stop libuv from making those system calls with affected SDKs. Fixes: https://github.com/libuv/libuv/issues/2923 PR-URL: https://github.com/libuv/libuv/pull/3027 Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Jameson Nash <vtjnash@gmail.com>
265 lines
7.1 KiB
C
265 lines
7.1 KiB
C
/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to
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* deal in the Software without restriction, including without limitation the
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*/
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#include "linux-syscalls.h"
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#include <unistd.h>
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#include <signal.h>
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#include <sys/syscall.h>
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#include <sys/types.h>
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#include <errno.h>
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#if defined(__arm__)
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# if defined(__thumb__) || defined(__ARM_EABI__)
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# define UV_SYSCALL_BASE 0
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# else
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# define UV_SYSCALL_BASE 0x900000
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# endif
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#endif /* __arm__ */
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#ifndef __NR_recvmmsg
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# if defined(__x86_64__)
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# define __NR_recvmmsg 299
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# elif defined(__arm__)
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# define __NR_recvmmsg (UV_SYSCALL_BASE + 365)
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# endif
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#endif /* __NR_recvmsg */
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#ifndef __NR_sendmmsg
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# if defined(__x86_64__)
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# define __NR_sendmmsg 307
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# elif defined(__arm__)
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# define __NR_sendmmsg (UV_SYSCALL_BASE + 374)
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# endif
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#endif /* __NR_sendmmsg */
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#ifndef __NR_utimensat
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# if defined(__x86_64__)
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# define __NR_utimensat 280
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# elif defined(__i386__)
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# define __NR_utimensat 320
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# elif defined(__arm__)
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# define __NR_utimensat (UV_SYSCALL_BASE + 348)
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# endif
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#endif /* __NR_utimensat */
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#ifndef __NR_preadv
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# if defined(__x86_64__)
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# define __NR_preadv 295
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# elif defined(__i386__)
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# define __NR_preadv 333
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# elif defined(__arm__)
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# define __NR_preadv (UV_SYSCALL_BASE + 361)
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# endif
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#endif /* __NR_preadv */
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#ifndef __NR_pwritev
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# if defined(__x86_64__)
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# define __NR_pwritev 296
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# elif defined(__i386__)
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# define __NR_pwritev 334
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# elif defined(__arm__)
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# define __NR_pwritev (UV_SYSCALL_BASE + 362)
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# endif
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#endif /* __NR_pwritev */
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#ifndef __NR_dup3
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# if defined(__x86_64__)
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# define __NR_dup3 292
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# elif defined(__i386__)
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# define __NR_dup3 330
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# elif defined(__arm__)
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# define __NR_dup3 (UV_SYSCALL_BASE + 358)
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# endif
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#endif /* __NR_pwritev */
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#ifndef __NR_copy_file_range
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# if defined(__x86_64__)
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# define __NR_copy_file_range 326
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# elif defined(__i386__)
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# define __NR_copy_file_range 377
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# elif defined(__s390__)
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# define __NR_copy_file_range 375
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# elif defined(__arm__)
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# define __NR_copy_file_range (UV_SYSCALL_BASE + 391)
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# elif defined(__aarch64__)
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# define __NR_copy_file_range 285
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# elif defined(__powerpc__)
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# define __NR_copy_file_range 379
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# elif defined(__arc__)
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# define __NR_copy_file_range 285
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# endif
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#endif /* __NR_copy_file_range */
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#ifndef __NR_statx
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# if defined(__x86_64__)
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# define __NR_statx 332
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# elif defined(__i386__)
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# define __NR_statx 383
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# elif defined(__aarch64__)
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# define __NR_statx 397
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# elif defined(__arm__)
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# define __NR_statx (UV_SYSCALL_BASE + 397)
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# elif defined(__ppc__)
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# define __NR_statx 383
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# elif defined(__s390__)
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# define __NR_statx 379
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# endif
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#endif /* __NR_statx */
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#ifndef __NR_getrandom
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# if defined(__x86_64__)
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# define __NR_getrandom 318
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# elif defined(__i386__)
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# define __NR_getrandom 355
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# elif defined(__aarch64__)
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# define __NR_getrandom 384
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# elif defined(__arm__)
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# define __NR_getrandom (UV_SYSCALL_BASE + 384)
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# elif defined(__ppc__)
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# define __NR_getrandom 359
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# elif defined(__s390__)
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# define __NR_getrandom 349
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# endif
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#endif /* __NR_getrandom */
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struct uv__mmsghdr;
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int uv__sendmmsg(int fd, struct uv__mmsghdr* mmsg, unsigned int vlen) {
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#if defined(__i386__)
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unsigned long args[4];
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int rc;
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args[0] = (unsigned long) fd;
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args[1] = (unsigned long) mmsg;
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args[2] = (unsigned long) vlen;
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args[3] = /* flags */ 0;
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/* socketcall() raises EINVAL when SYS_SENDMMSG is not supported. */
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rc = syscall(/* __NR_socketcall */ 102, 20 /* SYS_SENDMMSG */, args);
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if (rc == -1)
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if (errno == EINVAL)
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errno = ENOSYS;
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return rc;
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#elif defined(__NR_sendmmsg)
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return syscall(__NR_sendmmsg, fd, mmsg, vlen, /* flags */ 0);
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#else
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return errno = ENOSYS, -1;
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#endif
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}
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int uv__recvmmsg(int fd, struct uv__mmsghdr* mmsg, unsigned int vlen) {
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#if defined(__i386__)
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unsigned long args[5];
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int rc;
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args[0] = (unsigned long) fd;
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args[1] = (unsigned long) mmsg;
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args[2] = (unsigned long) vlen;
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args[3] = /* flags */ 0;
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args[4] = /* timeout */ 0;
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/* socketcall() raises EINVAL when SYS_RECVMMSG is not supported. */
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rc = syscall(/* __NR_socketcall */ 102, 19 /* SYS_RECVMMSG */, args);
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if (rc == -1)
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if (errno == EINVAL)
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errno = ENOSYS;
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return rc;
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#elif defined(__NR_recvmmsg)
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return syscall(__NR_recvmmsg, fd, mmsg, vlen, /* flags */ 0, /* timeout */ 0);
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#else
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return errno = ENOSYS, -1;
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#endif
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}
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ssize_t uv__preadv(int fd, const struct iovec *iov, int iovcnt, int64_t offset) {
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#if !defined(__NR_preadv) || defined(__ANDROID_API__) && __ANDROID_API__ < 24
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return errno = ENOSYS, -1;
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#else
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return syscall(__NR_preadv, fd, iov, iovcnt, (long)offset, (long)(offset >> 32));
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#endif
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}
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ssize_t uv__pwritev(int fd, const struct iovec *iov, int iovcnt, int64_t offset) {
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#if !defined(__NR_pwritev) || defined(__ANDROID_API__) && __ANDROID_API__ < 24
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return errno = ENOSYS, -1;
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#else
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return syscall(__NR_pwritev, fd, iov, iovcnt, (long)offset, (long)(offset >> 32));
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#endif
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}
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int uv__dup3(int oldfd, int newfd, int flags) {
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#if !defined(__NR_dup3) || defined(__ANDROID_API__) && __ANDROID_API__ < 21
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return errno = ENOSYS, -1;
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#else
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return syscall(__NR_dup3, oldfd, newfd, flags);
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#endif
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}
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ssize_t
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uv__fs_copy_file_range(int fd_in,
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off_t* off_in,
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int fd_out,
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off_t* off_out,
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size_t len,
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unsigned int flags)
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{
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#ifdef __NR_copy_file_range
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return syscall(__NR_copy_file_range,
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fd_in,
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off_in,
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fd_out,
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off_out,
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len,
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flags);
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#else
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return errno = ENOSYS, -1;
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#endif
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}
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int uv__statx(int dirfd,
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const char* path,
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int flags,
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unsigned int mask,
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struct uv__statx* statxbuf) {
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#if !defined(__NR_statx) || defined(__ANDROID_API__) && __ANDROID_API__ < 30
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return errno = ENOSYS, -1;
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#else
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return syscall(__NR_statx, dirfd, path, flags, mask, statxbuf);
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#endif
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}
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ssize_t uv__getrandom(void* buf, size_t buflen, unsigned flags) {
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#if !defined(__NR_getrandom) || defined(__ANDROID_API__) && __ANDROID_API__ < 28
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return errno = ENOSYS, -1;
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#else
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return syscall(__NR_getrandom, buf, buflen, flags);
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#endif
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}
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