diff options
| author | Antonio Quartulli <antonio@openvpn.net> | 2024-10-29 11:47:14 +0100 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2024-11-01 03:10:52 +0100 |
| commit | 4138e9ec00936c9fe7d0fe961e32f381b1e36926 (patch) | |
| tree | a5874f249e82cf137fe39de2cf63c3bab73183fd | |
| parent | fsl/fman: Validate cell-index value obtained from Device Tree (diff) | |
| download | linux-4138e9ec00936c9fe7d0fe961e32f381b1e36926.tar.xz linux-4138e9ec00936c9fe7d0fe961e32f381b1e36926.zip | |
netlink: add NLA_POLICY_MAX_LEN macro
Similarly to NLA_POLICY_MIN_LEN, NLA_POLICY_MAX_LEN defines a policy
with a maximum length value.
The netlink generator for YAML specs has been extended accordingly.
Signed-off-by: Antonio Quartulli <antonio@openvpn.net>
Reviewed-by: Donald Hunter <donald.hunter@gmail.com>
Link: https://patch.msgid.link/20241029-b4-ovpn-v11-1-de4698c73a25@openvpn.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| -rw-r--r-- | include/net/netlink.h | 1 | ||||
| -rwxr-xr-x | tools/net/ynl/ynl-gen-c.py | 4 |
2 files changed, 4 insertions, 1 deletions
diff --git a/include/net/netlink.h b/include/net/netlink.h index db6af207287c..2dc671c977ff 100644 --- a/include/net/netlink.h +++ b/include/net/netlink.h @@ -469,6 +469,7 @@ struct nla_policy { .max = _len \ } #define NLA_POLICY_MIN_LEN(_len) NLA_POLICY_MIN(NLA_BINARY, _len) +#define NLA_POLICY_MAX_LEN(_len) NLA_POLICY_MAX(NLA_BINARY, _len) /** * struct nl_info - netlink source information diff --git a/tools/net/ynl/ynl-gen-c.py b/tools/net/ynl/ynl-gen-c.py index 1a825b4081b2..aa22eb092475 100755 --- a/tools/net/ynl/ynl-gen-c.py +++ b/tools/net/ynl/ynl-gen-c.py @@ -481,7 +481,7 @@ class TypeBinary(Type): pass elif len(self.checks) == 1: check_name = list(self.checks)[0] - if check_name not in {'exact-len', 'min-len'}: + if check_name not in {'exact-len', 'min-len', 'max-len'}: raise Exception('Unsupported check for binary type: ' + check_name) else: raise Exception('More than one check for binary type not implemented, yet') @@ -492,6 +492,8 @@ class TypeBinary(Type): mem = 'NLA_POLICY_EXACT_LEN(' + self.get_limit_str('exact-len') + ')' elif 'min-len' in self.checks: mem = '{ .len = ' + self.get_limit_str('min-len') + ', }' + elif 'max-len' in self.checks: + mem = 'NLA_POLICY_MAX_LEN(' + self.get_limit_str('max-len') + ')' return mem |