Commit Graph

6 Commits

Author SHA1 Message Date
Tobias Klauser
731415f00d unix: add kernel module load/unload syscalls on Linux
InitModule loads a kernel module from an ELF image. FinitModule loads a
kernel module from a file descriptor. DeleteModule unloads a kernel
module.

These syscalls require the CAP_SYS_MODULE capability.

See http://man7.org/linux/man-pages/man2/init_module.2.html and
http://man7.org/linux/man-pages/man2/delete_module.2.html for details.

Also drop deprecated syscalls related to kernel modules from the list
of unimplemented syscalls.

Change-Id: I131e17f02c5617640f5f4073982d2b27a6d78bbf
Reviewed-on: https://go-review.googlesource.com/c/144173
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-10-26 06:49:43 +00:00
Tobias Klauser
8a28ead16f unix: update Dockerfile to Linux 4.19
Change-Id: I58c2cfb11ddd5ce731a880c0c63790092052f130
Reviewed-on: https://go-review.googlesource.com/c/143697
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-10-22 13:44:30 +00:00
Tobias Klauser
f81de40a84 unix: add KexecFileLoad on linux/{amd64,ppc64x,s390x}
Add a wrapper for the kexec_file_load syscall on the architectures that
implement it (amd64, ppc64x, s390x). See
http://man7.org/linux/man-pages/man2/kexec_file_load.2.html

Change-Id: Ie29f871902176610a6ba7ed0a7bcc95c10eb172b
Reviewed-on: https://go-review.googlesource.com/c/140037
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-10-05 13:07:39 +00:00
Matt Layher
d47a0f3392 unix: implement Linux AF_XDP sockets
Provides access to the Linux AF_XDP socket family.  For more
information on AF_XDP, see:
https://www.kernel.org/doc/html/latest/networking/af_xdp.html.

Change-Id: I7efb82c4a67da3e15932e3c0d882f0bad7ba16ef
Reviewed-on: https://go-review.googlesource.com/136695
Run-TryBot: Matt Layher <mdlayher@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
2018-09-21 16:39:48 +00:00
Tobias Klauser
ee1b12c67a unix: add MemfdCreate on Linux
Add a wrapper for the memfd_create syscall on Linux. See
http://man7.org/linux/man-pages/man2/memfd_create.2.html for more
information.

Also add the corresponding MFD_* constants to be used in the flags
argument.

Change-Id: Ib30a007e15575a38ecf204601ffede9c913799b6
Reviewed-on: https://go-review.googlesource.com/135915
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-09-18 15:37:33 +00:00
Tobias Klauser
8cf3aee429 unix: add support for linux/riscv64
Add syscall wrappers, error constants and types for linux/riscv64

Switch docker image to Ubuntu 18.10 in order to get qemu supporting
riscv64. Also set the uname release string for qemu to 4.15 (the first
Linux kernel version with riscv64 support), because otherwise running
the generating C program in mkerrors.sh on a host with an older kernel
would fail with a "FATAL: kernel too old".

Note that linux/riscv64 is currently only usable using gccgo.

Updates golang/go#27532

Change-Id: Ic420f842342418443474cac72d38adff14d1b938
Reviewed-on: https://go-review.googlesource.com/133735
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-09-06 13:30:57 +00:00