linux/net/ieee802154
Michal Kubecek ae0be8de9a netlink: make nla_nest_start() add NLA_F_NESTED flag
Even if the NLA_F_NESTED flag was introduced more than 11 years ago, most
netlink based interfaces (including recently added ones) are still not
setting it in kernel generated messages. Without the flag, message parsers
not aware of attribute semantics (e.g. wireshark dissector or libmnl's
mnl_nlmsg_fprintf()) cannot recognize nested attributes and won't display
the structure of their contents.

Unfortunately we cannot just add the flag everywhere as there may be
userspace applications which check nlattr::nla_type directly rather than
through a helper masking out the flags. Therefore the patch renames
nla_nest_start() to nla_nest_start_noflag() and introduces nla_nest_start()
as a wrapper adding NLA_F_NESTED. The calls which add NLA_F_NESTED manually
are rewritten to use nla_nest_start().

Except for changes in include/net/netlink.h, the patch was generated using
this semantic patch:

@@ expression E1, E2; @@
-nla_nest_start(E1, E2)
+nla_nest_start_noflag(E1, E2)

@@ expression E1, E2; @@
-nla_nest_start_noflag(E1, E2 | NLA_F_NESTED)
+nla_nest_start(E1, E2)

Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Acked-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-27 17:03:44 -04:00
..
6lowpan net: remove unused struct inet_frag_queue.fragments field 2019-02-26 08:27:05 -08:00
core.c net: remove blank lines at end of file 2018-07-24 14:10:43 -07:00
core.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
header_ops.c ieee802154: change needed headroom/tailroom 2015-09-22 11:51:20 +02:00
ieee802154.h genetlink: make policy common to family 2019-03-22 10:38:23 -04:00
Kconfig nl802154: add support for security layer 2015-09-30 13:16:44 +02:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
netlink.c genetlink: make policy common to family 2019-03-22 10:38:23 -04:00
nl802154.c netlink: make nla_nest_start() add NLA_F_NESTED flag 2019-04-27 17:03:44 -04:00
nl802154.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
nl_policy.c net: remove blank lines at end of file 2018-07-24 14:10:43 -07:00
nl-mac.c ieee802154: use nla_put_u64_64bit() 2016-04-25 15:09:11 -04:00
nl-phy.c net: dev: Add extack argument to dev_set_mac_address() 2018-12-13 18:41:38 -08:00
rdev-ops.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
socket.c net: rework SIOCGSTAMP ioctl handling 2019-04-19 14:07:40 -07:00
sysfs.c cfg802154: add PM hooks 2015-07-23 17:10:49 +02:00
sysfs.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
trace.c ieee802154: Add trace events for rdev->ops 2015-04-30 18:48:09 +02:00
trace.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00