mirror of
https://github.com/hardkernel/linux.git
synced 2026-06-03 09:41:54 +09:00
186e26eb13
Johannes Berg says:
====================
genetlink per-op policy export
Here's a respin, now including Jakub's patch last so that it will
do the right thing from the start.
The first patch remains the same, of course; the others have mostly
some rebasing going on, except for the actual export patch (patch 4)
which is adjusted per Jakub's review comments about exporting the
policy only if it's actually used for do/dump.
To see that, the dump for "nlctrl" (i.e. the generic netlink control)
is instructive, because the ops are this:
{
.cmd = CTRL_CMD_GETFAMILY,
.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
.policy = ctrl_policy_family,
.maxattr = ARRAY_SIZE(ctrl_policy_family) - 1,
.doit = ctrl_getfamily,
.dumpit = ctrl_dumpfamily,
},
{
.cmd = CTRL_CMD_GETPOLICY,
.policy = ctrl_policy_policy,
.maxattr = ARRAY_SIZE(ctrl_policy_policy) - 1,
.start = ctrl_dumppolicy_start,
.dumpit = ctrl_dumppolicy,
.done = ctrl_dumppolicy_done,
},
So we exercise both "don't have doit" and "GENL_DONT_VALIDATE_DUMP"
parts, and get (with the current genl patch):
$ genl ctrl policy name nlctrl
ID: 0x10 op 3 policies: do=0
ID: 0x10 op 10 policies: dump=1
ID: 0x10 policy[0]:attr[1]: type=U16 range:[0,65535]
ID: 0x10 policy[0]:attr[2]: type=NUL_STRING max len:15
ID: 0x10 policy[1]:attr[1]: type=U16 range:[0,65535]
ID: 0x10 policy[1]:attr[2]: type=NUL_STRING max len:15
ID: 0x10 policy[1]:attr[10]: type=U32 range:[0,4294967295]
====================
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.