linux/Documentation/userspace-api
Jakub Kicinski 690252f19f netlink: add support for ext_ack missing attributes
There is currently no way to report via extack in a structured way
that an attribute is missing. This leads to families resorting to
string messages.

Add a pair of attributes - @offset and @type for machine-readable
way of reporting missing attributes. The @offset points to the
nest which should have contained the attribute, @type is the
expected nla_type. The offset will be skipped if the attribute
is missing at the message level rather than inside a nest.

User space should be able to figure out which attribute enum
(AKA attribute space AKA attribute set) the nest pointed to by
@offset is using.

Reviewed-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-08-30 12:20:43 +02:00
..
accelerators Documentation: ocxl.rst: change FPGA indirect article to an 2021-06-09 14:51:25 +02:00
ebpf docs/bpf: Add bpf() syscall command reference 2021-03-04 18:39:46 -08:00
ioctl Remove DECnet support from kernel 2022-08-22 14:26:30 +01:00
media drm for 5.20/6.0 2022-08-03 19:52:08 -07:00
netlink netlink: add support for ext_ack missing attributes 2022-08-30 12:20:43 +02:00
futex2.rst futex2: Documentation: Document sys_futex_waitv() uAPI 2021-10-07 13:51:13 +02:00
index.rst docs: netlink: basic introduction to Netlink 2022-08-23 16:10:23 -07:00
iommu.rst docs: IOMMU user API 2020-10-01 14:52:46 +02:00
landlock.rst landlock: Explain how to support Landlock 2022-05-23 13:28:03 +02:00
no_new_privs.rst doc: ReSTify no_new_privs.txt 2017-05-18 10:30:09 -06:00
seccomp_filter.rst seccomp: Add wait_killable semantic to seccomp user notifier 2022-05-03 14:11:58 -07:00
spec_ctrl.rst Documentation: Add L1D flushing Documentation 2021-07-28 11:42:25 +02:00
sysfs-platform_profile.rst Documentation: Add documentation for new platform_profile sysfs attribute 2020-12-30 18:28:57 +01:00
unshare.rst doc-rst: fix inline emphasis in unshare.rst 2017-05-18 10:23:10 -06:00
vduse.rst VDUSE: fix documentation underline warning 2021-10-13 08:42:07 -04:00