From patchwork Wed Oct 16 01:03:01 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Antonio Quartulli X-Patchwork-Id: 13837573 X-Patchwork-Delegate: kuba@kernel.org Received: from mail-wr1-f41.google.com (mail-wr1-f41.google.com [209.85.221.41]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 365CD101E2 for ; Wed, 16 Oct 2024 01:03:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.221.41 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729040624; cv=none; b=Qf0wLjrRZlB2TU895G5XKIXFdt7rDnRoIhNo/Leawa44lLIsBEVOPkbM4sXbhnIkvZ8oM5r4YmO+Wi2yNxAkE/5i1L//ssxvyQp7UnGFgAGHoTzCTAirxkd/Z7nWT1bQOiHlreJZYXfyikdFdmlTOHWJJcLMsCnoIat0Gixa/q8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729040624; c=relaxed/simple; bh=YWzfJwwDj9H33yTKqyIsks1NPkpejrGE0PuiyJ5QhmQ=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=larcBctwtlaxJ5GbPUMn7ymhlb3ook4w8ovw4KjI2Voq8+V1LWraLcA/efA6sX4BtFfE+wZZ8H8/a9ZbiUgVZc4zdtn/eBdklV3kGVzduwVojwn/7u7sjZWiGOEqHytPEx4/rYNc5kwpv2QihnkvdrCV1yVDuvenT8MgLJir8fU= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=openvpn.net; spf=pass smtp.mailfrom=openvpn.com; dkim=pass (2048-bit key) header.d=openvpn.net header.i=@openvpn.net header.b=QtitJG8y; arc=none smtp.client-ip=209.85.221.41 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=openvpn.net Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=openvpn.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=openvpn.net header.i=@openvpn.net header.b="QtitJG8y" Received: by mail-wr1-f41.google.com with SMTP id ffacd0b85a97d-37d3ecad390so217499f8f.1 for ; Tue, 15 Oct 2024 18:03:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=openvpn.net; s=google; t=1729040620; x=1729645420; darn=vger.kernel.org; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=M9GdUbPvHtzqsFu2h4/Im5jGzt5vX/Qgs50BtWNazkE=; b=QtitJG8ygbhw//ICLnRY5t9+9MgAkTQpl0xfY3FGilgcPCzt4U/a5+bjVbflQ5mMWn aJGaAJNEVLCHJFamNbTmELeBlilanctjFV3gxw4n/ZkUBxUMLKmi8VLYVykTcTgKyFhz h13wd9DalJRNbPL2De6wwTOBvv9xRRDBfN4eoGV8cYUrGcmxXrBcqLxZpexLCwL1quHW 2B+pT19F/W1UEyR5ad2+p1XGzsnKXVPBRrrfUBkY4SMY0wGayjGF7DVkWhUYy9rfkLPc ya+nBbUnpfUpwM5poHJWaWJ6JxbA64OATN60c8dwUns1taxiPlbTW5x6qQN8OmfUmJPP NbWQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1729040620; x=1729645420; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=M9GdUbPvHtzqsFu2h4/Im5jGzt5vX/Qgs50BtWNazkE=; b=Ojd8YdGatEw8OFgGTUU+1I10X79VJYi1nwLkbkSlIEJ1KBRiDGrzokRprk7/j9A/68 +fEzUUjESAYlqYrXhyqD+0VaA0lzZiw6TNvBaqeY8g0HCWRLsqm8nPFJj28gPEjJxShA 0qRQ3F9meESGr+yuvGhZjWPagRwpaze/TJciFuYtWi3Qq6zThJStBmXW8sOtqt2vl0ot hn4ofxYiG2jR1W2h89HcCPVO69CGJEmg/sZWlnuvV3oGuvsPZ2KzgNh7xv5qECwf+jaO CfNQ/G2Vpk4Z+sh6h38+kf691VgpwBwSBV7KNtRomKhZ3Lf+EqLVTOySUbDmPl5t88nq V3+w== X-Gm-Message-State: AOJu0YyzTyx52p0cvS0ZFFHfAYvhn9p2T34eBsiaEdOYXiwiY2K4500E E+Hc2L8MbN1YZ8TxdXKD171eXppsliLt503jUK+SsSck37TA47dFJ6MRyzX6GMU= X-Google-Smtp-Source: AGHT+IGnhSAmGLGUDKKbUqvI6y6PJo6IA+NC1DmkR+MMI0dzKNGfU/PKwcleDFpP8R8tmigj6tcp+g== X-Received: by 2002:a5d:591b:0:b0:37c:bafd:5624 with SMTP id ffacd0b85a97d-37d86329aefmr1528351f8f.25.1729040620564; Tue, 15 Oct 2024 18:03:40 -0700 (PDT) Received: from serenity.mandelbit.com ([2001:67c:2fbc:1:4c1a:a7c8:72f5:4282]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-37d7fa8778csm2886765f8f.25.2024.10.15.18.03.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 15 Oct 2024 18:03:40 -0700 (PDT) From: Antonio Quartulli Date: Wed, 16 Oct 2024 03:03:01 +0200 Subject: [PATCH net-next v9 01/23] netlink: add NLA_POLICY_MAX_LEN macro Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20241016-b4-ovpn-v9-1-aabe9d225ad5@openvpn.net> References: <20241016-b4-ovpn-v9-0-aabe9d225ad5@openvpn.net> In-Reply-To: <20241016-b4-ovpn-v9-0-aabe9d225ad5@openvpn.net> To: Eric Dumazet , Jakub Kicinski , Paolo Abeni , Donald Hunter , Antonio Quartulli , Shuah Khan , donald.hunter@gmail.com, sd@queasysnail.net, ryazanov.s.a@gmail.com, Andrew Lunn Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, openvpn-devel@lists.sourceforge.net, linux-kselftest@vger.kernel.org X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=1979; i=antonio@openvpn.net; h=from:subject:message-id; bh=YWzfJwwDj9H33yTKqyIsks1NPkpejrGE0PuiyJ5QhmQ=; b=owEBbQGS/pANAwAIAQtw5TqgONWHAcsmYgBnDxDudYwSrNv2JxTj0AACirqozqaUNwxcVn54Q sOfOYs8hbyJATMEAAEIAB0WIQSZq9xs+NQS5N5fwPwLcOU6oDjVhwUCZw8Q7gAKCRALcOU6oDjV hwgTB/9SsO69NczktOYtzGXdzG9nYDdyCJ8UPQAROWiG8V/HoF5ibInTrwSYNc6Ot4Eoxtxvx6D G3SHjSpbyeN0F0AuCfNztVYN/RyKBT16gz1KkJx98EEm2lMZG8KYjCOmcBbnWJRH6yBo9xBJJG7 xFoNKmxRUJZNAFintQFuETYwyZzPdf0bOc3OCDa/eQy5MAqUd2m9qKRLMhnVTZ7TrqnYPNEqD4M 6eNkbReTbtv/uNXG493MiHeGahWTvXYsSQN2+scPgWuTqbRW4pF0Cyq9BchTF1NJHZovTRtutB/ HOXj17O2jFC8MdOD1cHlcyfLrDMZkvgeh64TQpLILAnkAl37 X-Developer-Key: i=antonio@openvpn.net; a=openpgp; fpr=CABDA1282017C267219885C748F0CCB68F59D14C X-Patchwork-Delegate: kuba@kernel.org 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@gmail.com Signed-off-by: Antonio Quartulli --- 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 d64cb2b49c4437cfc018c669dadafdb43037e727..89ef308e56bbe287aee81e118f45cb951df88046 100755 --- a/tools/net/ynl/ynl-gen-c.py +++ b/tools/net/ynl/ynl-gen-c.py @@ -478,7 +478,7 @@ 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') @@ -489,6 +489,8 @@ 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