/* Copyright Joyent, Inc. and other Node contributors. All rights reserved. * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to * deal in the Software without restriction, including without limitation the * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or * sell copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS * IN THE SOFTWARE. */ #include "linux-syscalls.h" #include #include #include #include #include #if defined(__arm__) # if defined(__thumb__) || defined(__ARM_EABI__) # define UV_SYSCALL_BASE 0 # else # define UV_SYSCALL_BASE 0x900000 # endif #endif /* __arm__ */ #ifndef __NR_recvmmsg # if defined(__x86_64__) # define __NR_recvmmsg 299 # elif defined(__arm__) # define __NR_recvmmsg (UV_SYSCALL_BASE + 365) # endif #endif /* __NR_recvmsg */ #ifndef __NR_sendmmsg # if defined(__x86_64__) # define __NR_sendmmsg 307 # elif defined(__arm__) # define __NR_sendmmsg (UV_SYSCALL_BASE + 374) # endif #endif /* __NR_sendmmsg */ #ifndef __NR_utimensat # if defined(__x86_64__) # define __NR_utimensat 280 # elif defined(__i386__) # define __NR_utimensat 320 # elif defined(__arm__) # define __NR_utimensat (UV_SYSCALL_BASE + 348) # endif #endif /* __NR_utimensat */ #ifndef __NR_preadv # if defined(__x86_64__) # define __NR_preadv 295 # elif defined(__i386__) # define __NR_preadv 333 # elif defined(__arm__) # define __NR_preadv (UV_SYSCALL_BASE + 361) # endif #endif /* __NR_preadv */ #ifndef __NR_pwritev # if defined(__x86_64__) # define __NR_pwritev 296 # elif defined(__i386__) # define __NR_pwritev 334 # elif defined(__arm__) # define __NR_pwritev (UV_SYSCALL_BASE + 362) # endif #endif /* __NR_pwritev */ #ifndef __NR_dup3 # if defined(__x86_64__) # define __NR_dup3 292 # elif defined(__i386__) # define __NR_dup3 330 # elif defined(__arm__) # define __NR_dup3 (UV_SYSCALL_BASE + 358) # endif #endif /* __NR_pwritev */ #ifndef __NR_copy_file_range # if defined(__x86_64__) # define __NR_copy_file_range 326 # elif defined(__i386__) # define __NR_copy_file_range 377 # elif defined(__s390__) # define __NR_copy_file_range 375 # elif defined(__arm__) # define __NR_copy_file_range (UV_SYSCALL_BASE + 391) # elif defined(__aarch64__) # define __NR_copy_file_range 285 # elif defined(__powerpc__) # define __NR_copy_file_range 379 # elif defined(__arc__) # define __NR_copy_file_range 285 # endif #endif /* __NR_copy_file_range */ #ifndef __NR_statx # if defined(__x86_64__) # define __NR_statx 332 # elif defined(__i386__) # define __NR_statx 383 # elif defined(__aarch64__) # define __NR_statx 397 # elif defined(__arm__) # define __NR_statx (UV_SYSCALL_BASE + 397) # elif defined(__ppc__) # define __NR_statx 383 # elif defined(__s390__) # define __NR_statx 379 # endif #endif /* __NR_statx */ #ifndef __NR_getrandom # if defined(__x86_64__) # define __NR_getrandom 318 # elif defined(__i386__) # define __NR_getrandom 355 # elif defined(__aarch64__) # define __NR_getrandom 384 # elif defined(__arm__) # define __NR_getrandom (UV_SYSCALL_BASE + 384) # elif defined(__ppc__) # define __NR_getrandom 359 # elif defined(__s390__) # define __NR_getrandom 349 # endif #endif /* __NR_getrandom */ struct uv__mmsghdr; int uv__sendmmsg(int fd, struct uv__mmsghdr* mmsg, unsigned int vlen) { #if defined(__i386__) unsigned long args[4]; int rc; args[0] = (unsigned long) fd; args[1] = (unsigned long) mmsg; args[2] = (unsigned long) vlen; args[3] = /* flags */ 0; /* socketcall() raises EINVAL when SYS_SENDMMSG is not supported. */ rc = syscall(/* __NR_socketcall */ 102, 20 /* SYS_SENDMMSG */, args); if (rc == -1) if (errno == EINVAL) errno = ENOSYS; return rc; #elif defined(__NR_sendmmsg) return syscall(__NR_sendmmsg, fd, mmsg, vlen, /* flags */ 0); #else return errno = ENOSYS, -1; #endif } int uv__recvmmsg(int fd, struct uv__mmsghdr* mmsg, unsigned int vlen) { #if defined(__i386__) unsigned long args[5]; int rc; args[0] = (unsigned long) fd; args[1] = (unsigned long) mmsg; args[2] = (unsigned long) vlen; args[3] = /* flags */ 0; args[4] = /* timeout */ 0; /* socketcall() raises EINVAL when SYS_RECVMMSG is not supported. */ rc = syscall(/* __NR_socketcall */ 102, 19 /* SYS_RECVMMSG */, args); if (rc == -1) if (errno == EINVAL) errno = ENOSYS; return rc; #elif defined(__NR_recvmmsg) return syscall(__NR_recvmmsg, fd, mmsg, vlen, /* flags */ 0, /* timeout */ 0); #else return errno = ENOSYS, -1; #endif } ssize_t uv__preadv(int fd, const struct iovec *iov, int iovcnt, int64_t offset) { #if defined(__NR_preadv) return syscall(__NR_preadv, fd, iov, iovcnt, (long)offset, (long)(offset >> 32)); #else return errno = ENOSYS, -1; #endif } ssize_t uv__pwritev(int fd, const struct iovec *iov, int iovcnt, int64_t offset) { #if defined(__NR_pwritev) return syscall(__NR_pwritev, fd, iov, iovcnt, (long)offset, (long)(offset >> 32)); #else return errno = ENOSYS, -1; #endif } int uv__dup3(int oldfd, int newfd, int flags) { #if defined(__NR_dup3) return syscall(__NR_dup3, oldfd, newfd, flags); #else return errno = ENOSYS, -1; #endif } ssize_t uv__fs_copy_file_range(int fd_in, ssize_t* off_in, int fd_out, ssize_t* off_out, size_t len, unsigned int flags) { #ifdef __NR_copy_file_range return syscall(__NR_copy_file_range, fd_in, off_in, fd_out, off_out, len, flags); #else return errno = ENOSYS, -1; #endif } int uv__statx(int dirfd, const char* path, int flags, unsigned int mask, struct uv__statx* statxbuf) { /* __NR_statx make Android box killed by SIGSYS. * That looks like a seccomp2 sandbox filter rejecting the system call. */ #if defined(__NR_statx) && !defined(__ANDROID__) return syscall(__NR_statx, dirfd, path, flags, mask, statxbuf); #else return errno = ENOSYS, -1; #endif } ssize_t uv__getrandom(void* buf, size_t buflen, unsigned flags) { #if defined(__NR_getrandom) return syscall(__NR_getrandom, buf, buflen, flags); #else return errno = ENOSYS, -1; #endif }