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Message-Id: <20241025-b4-ovpn-v10-1-b87530777be7@openvpn.net>
Date: Fri, 25 Oct 2024 11:14:00 +0200
From: Antonio Quartulli <antonio@...nvpn.net>
To: Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>, Donald Hunter <donald.hunter@...il.com>,
Antonio Quartulli <antonio@...nvpn.net>, Shuah Khan <shuah@...nel.org>,
donald.hunter@...il.com, sd@...asysnail.net, ryazanov.s.a@...il.com,
Andrew Lunn <andrew@...n.ch>
Cc: netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-kselftest@...r.kernel.org
Subject: [PATCH net-next v10 01/23] 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.
Cc: donald.hunter@...il.com
Signed-off-by: Antonio Quartulli <antonio@...nvpn.net>
---
include/net/netlink.h | 1 +
tools/net/ynl/ynl-gen-c.py | 4 +++-
2 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/include/net/netlink.h b/include/net/netlink.h
index db6af207287c839408c58cb28b82408e0548eaca..2dc671c977ff3297975269d236264907009703d3 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 1a825b4081b222cf97eb73f01a2a5c1ffe47cd5c..aa22eb0924754f38ea0b9e68a1ff5a55d94d6717 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
--
2.45.2
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