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Date: Sat, 5 Oct 2019 20:04:37 +0200
From: Jiri Pirko <jiri@...nulli.us>
To: netdev@...r.kernel.org
Cc: davem@...emloft.net, jakub.kicinski@...ronome.com,
alex.aring@...il.com, stefan@...enfreihafen.org,
jon.maloy@...csson.com, ying.xue@...driver.com,
johannes.berg@...el.com, mkubecek@...e.cz, yuehaibing@...wei.com,
mlxsw@...lanox.com
Subject: [patch net-next 05/10] net: ieee802154: have genetlink code to parse the attrs during dumpit
From: Jiri Pirko <jiri@...lanox.com>
Benefit from the fact that the generic netlink code can parse the attrs
for dumpit op and avoid need to parse it in the op callback.
Signed-off-by: Jiri Pirko <jiri@...lanox.com>
---
net/ieee802154/nl802154.c | 39 ++++++++++++++-------------------------
1 file changed, 14 insertions(+), 25 deletions(-)
diff --git a/net/ieee802154/nl802154.c b/net/ieee802154/nl802154.c
index ffcfcef76291..7c5a1aa5adb4 100644
--- a/net/ieee802154/nl802154.c
+++ b/net/ieee802154/nl802154.c
@@ -236,21 +236,14 @@ nl802154_prepare_wpan_dev_dump(struct sk_buff *skb,
struct cfg802154_registered_device **rdev,
struct wpan_dev **wpan_dev)
{
+ const struct genl_dumpit_info *info = genl_dumpit_info(cb);
int err;
rtnl_lock();
if (!cb->args[0]) {
- err = nlmsg_parse_deprecated(cb->nlh,
- GENL_HDRLEN + nl802154_fam.hdrsize,
- genl_family_attrbuf(&nl802154_fam),
- nl802154_fam.maxattr,
- nl802154_policy, NULL);
- if (err)
- goto out_unlock;
-
*wpan_dev = __cfg802154_wpan_dev_from_attrs(sock_net(skb->sk),
- genl_family_attrbuf(&nl802154_fam));
+ info->attrs);
if (IS_ERR(*wpan_dev)) {
err = PTR_ERR(*wpan_dev);
goto out_unlock;
@@ -557,17 +550,8 @@ static int nl802154_dump_wpan_phy_parse(struct sk_buff *skb,
struct netlink_callback *cb,
struct nl802154_dump_wpan_phy_state *state)
{
- struct nlattr **tb = genl_family_attrbuf(&nl802154_fam);
- int ret = nlmsg_parse_deprecated(cb->nlh,
- GENL_HDRLEN + nl802154_fam.hdrsize,
- tb, nl802154_fam.maxattr,
- nl802154_policy, NULL);
-
- /* TODO check if we can handle error here,
- * we have no backward compatibility
- */
- if (ret)
- return 0;
+ const struct genl_dumpit_info *info = genl_dumpit_info(cb);
+ struct nlattr **tb = info->attrs;
if (tb[NL802154_ATTR_WPAN_PHY])
state->filter_wpan_phy = nla_get_u32(tb[NL802154_ATTR_WPAN_PHY]);
@@ -2203,7 +2187,8 @@ static void nl802154_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
static const struct genl_ops nl802154_ops[] = {
{
.cmd = NL802154_CMD_GET_WPAN_PHY,
- .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .validate = GENL_DONT_VALIDATE_STRICT |
+ GENL_DONT_VALIDATE_DUMP_STRICT,
.doit = nl802154_get_wpan_phy,
.dumpit = nl802154_dump_wpan_phy,
.done = nl802154_dump_wpan_phy_done,
@@ -2343,7 +2328,8 @@ static const struct genl_ops nl802154_ops[] = {
},
{
.cmd = NL802154_CMD_GET_SEC_KEY,
- .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .validate = GENL_DONT_VALIDATE_STRICT |
+ GENL_DONT_VALIDATE_DUMP_STRICT,
/* TODO .doit by matching key id? */
.dumpit = nl802154_dump_llsec_key,
.flags = GENL_ADMIN_PERM,
@@ -2369,7 +2355,8 @@ static const struct genl_ops nl802154_ops[] = {
/* TODO unique identifier must short+pan OR extended_addr */
{
.cmd = NL802154_CMD_GET_SEC_DEV,
- .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .validate = GENL_DONT_VALIDATE_STRICT |
+ GENL_DONT_VALIDATE_DUMP_STRICT,
/* TODO .doit by matching extended_addr? */
.dumpit = nl802154_dump_llsec_dev,
.flags = GENL_ADMIN_PERM,
@@ -2395,7 +2382,8 @@ static const struct genl_ops nl802154_ops[] = {
/* TODO remove complete devkey, put it as nested? */
{
.cmd = NL802154_CMD_GET_SEC_DEVKEY,
- .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .validate = GENL_DONT_VALIDATE_STRICT |
+ GENL_DONT_VALIDATE_DUMP_STRICT,
/* TODO doit by matching ??? */
.dumpit = nl802154_dump_llsec_devkey,
.flags = GENL_ADMIN_PERM,
@@ -2420,7 +2408,8 @@ static const struct genl_ops nl802154_ops[] = {
},
{
.cmd = NL802154_CMD_GET_SEC_LEVEL,
- .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .validate = GENL_DONT_VALIDATE_STRICT |
+ GENL_DONT_VALIDATE_DUMP_STRICT,
/* TODO .doit by matching frame_type? */
.dumpit = nl802154_dump_llsec_seclevel,
.flags = GENL_ADMIN_PERM,
--
2.21.0
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