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genetlink: optionally validate strictly/dumps

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Add options to strictly validate messages and dump messages,
sometimes perhaps validating dump messages non-strictly may
be required, so add an option for that as well.

Since none of this can really be applied to existing commands,
set the options everwhere using the following spatch:

    @@
    identifier ops;
    expression X;
    @@
    struct genl_ops ops[] = {
    ...,
     {
            .cmd = X,
    +       .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
            ...
     },
    ...
    };

For new commands one should just not copy the .validate 'opt-out'
flags and thus get strict validation.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Johannes Berg 2019-04-26 14:07:31 +02:00 • committed by David S. Miller
parent 56738f4608
commit ef6243acb4
37 changed files with 405 additions and 3 deletions
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2
net/ipv4/tcp_metrics.c
View file

@ -951,11 +951,13 @@ static int tcp_metrics_nl_cmd_del(struct sk_buff *skb, struct genl_info *info)
static const struct genl_ops tcp_metrics_nl_ops[] = {
{
.cmd = TCP_METRICS_CMD_GET,
.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
.doit = tcp_metrics_nl_cmd_get,
.dumpit = tcp_metrics_nl_dump,
},
{
.cmd = TCP_METRICS_CMD_DEL,
.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
.doit = tcp_metrics_nl_cmd_del,
.flags = GENL_ADMIN_PERM,
},