From patchwork Fri Dec 23 23:40:09 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Quentin Deslandes X-Patchwork-Id: 13081219 X-Patchwork-Delegate: bpf@iogearbox.net Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 907A6C4332F for ; Fri, 23 Dec 2022 23:52:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231970AbiLWXwe (ORCPT ); Fri, 23 Dec 2022 18:52:34 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60872 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231140AbiLWXwd (ORCPT ); Fri, 23 Dec 2022 18:52:33 -0500 X-Greylist: delayed 524 seconds by postgrey-1.37 at lindbergh.monkeyblade.net; Fri, 23 Dec 2022 15:52:31 PST Received: from 2.mo546.mail-out.ovh.net (2.mo546.mail-out.ovh.net [178.33.110.155]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 984A413F5E for ; Fri, 23 Dec 2022 15:52:31 -0800 (PST) Received: from ex4.mail.ovh.net (unknown [10.108.20.92]) by mo546.mail-out.ovh.net (Postfix) with ESMTPS id DADF62711D; Fri, 23 Dec 2022 23:43:44 +0000 (UTC) Received: from dev-fedora-x86-64.naccy.de (37.65.8.229) by DAG10EX1.indiv4.local (172.16.2.91) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.16; Sat, 24 Dec 2022 00:43:43 +0100 From: Quentin Deslandes To: CC: , Dmitrii Banshchikov , Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko , Martin KaFai Lau , Song Liu , Yonghong Song , John Fastabend , KP Singh , Stanislav Fomichev , Hao Luo , Jiri Olsa , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Mykola Lysenko , Shuah Khan , , , , Subject: [PATCH bpf-next v3 01/16] bpfilter: add types for usermode helper Date: Sat, 24 Dec 2022 00:40:09 +0100 Message-ID: <20221223234127.474463-2-qde@naccy.de> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20221223234127.474463-1-qde@naccy.de> References: <20221223234127.474463-1-qde@naccy.de> MIME-Version: 1.0 X-Originating-IP: [37.65.8.229] X-ClientProxiedBy: CAS6.indiv4.local (172.16.1.6) To DAG10EX1.indiv4.local (172.16.2.91) X-Ovh-Tracer-Id: 4409305514236374647 X-VR-SPAMSTATE: OK X-VR-SPAMSCORE: -85 X-VR-SPAMCAUSE: gggruggvucftvghtrhhoucdtuddrgedvhedrheefgddufecutefuodetggdotefrodftvfcurfhrohhfihhlvgemucfqggfjpdevjffgvefmvefgnecuuegrihhlohhuthemucehtddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenogetfedtuddqtdduucdludehmdenucfjughrpefhvfevufffkffojghfggfgtghisehtkeertdertddtnecuhfhrohhmpefsuhgvnhhtihhnucffvghslhgrnhguvghsuceoqhguvgesnhgrtggthidruggvqeenucggtffrrghtthgvrhhnpeduledugfeileetvdelieeujedttedtvedtgfetteevfeejhfffkeeujeetfffgudenucfkphepuddvjedrtddrtddruddpfeejrdeihedrkedrvddvleenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhepihhnvghtpeduvdejrddtrddtrddupdhmrghilhhfrhhomhepoehquggvsehnrggttgihrdguvgeqpdhnsggprhgtphhtthhopedupdhrtghpthhtohepshgufhesghhoohhglhgvrdgtohhmpdgsphhfsehvghgvrhdrkhgvrhhnvghlrdhorhhgpdhlihhnuhigqdhkvghrnhgvlhesvhhgvghrrdhkvghrnhgvlhdrohhrghdpshhhuhgrhheskhgvrhhnvghlrdhorhhgpdhmhihkohhlrghlsehfsgdrtghomhdpphgrsggvnhhisehrvgguhhgrthdrtghomhdpkhhusggrsehkvghrnhgvlhdrohhrghdpvgguuhhmrgiivghtsehgohhoghhlvgdrtghomhdpuggrvhgvmhesuggrvhgvmhhlohhfthdrnhgvth dpjhholhhsrgeskhgvrhhnvghlrdhorhhgpdhhrgholhhuohesghhoohhglhgvrdgtohhmpdhlihhnuhigqdhkshgvlhhfthgvshhtsehvghgvrhdrkhgvrhhnvghlrdhorhhgpdhkphhsihhnghhhsehkvghrnhgvlhdrohhrghdpjhhohhhnrdhfrghsthgrsggvnhgusehgmhgrihhlrdgtohhmpdihhhhssehfsgdrtghomhdpshhonhhgsehkvghrnhgvlhdrohhrghdpmhgrrhhtihhnrdhlrghusehlihhnuhigrdguvghvpdgrnhgurhhiiheskhgvrhhnvghlrdhorhhgpdgurghnihgvlhesihhoghgvrghrsghogidrnhgvthdprghstheskhgvrhhnvghlrdhorhhgpdhmvgesuhgsihhquhgvrdhsphgsrdhruhdpkhgvrhhnvghlqdhtvggrmhesmhgvthgrrdgtohhmpdhnvghtuggvvhesvhhgvghrrdhkvghrnhgvlhdrohhrghdpoffvtefjohhsthepmhhoheegiedpmhhouggvpehsmhhtphhouhht Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org X-Patchwork-Delegate: bpf@iogearbox.net Add required definitions that mirror existing iptables' ABI. Those definitions are needed by usermode helper. Co-developed-by: Dmitrii Banshchikov Signed-off-by: Dmitrii Banshchikov Signed-off-by: Quentin Deslandes --- include/uapi/linux/bpfilter.h | 154 ++++++++++++++++++++++++++++++++++ 1 file changed, 154 insertions(+) diff --git a/include/uapi/linux/bpfilter.h b/include/uapi/linux/bpfilter.h index cbc1f5813f50..295fd9caa3c8 100644 --- a/include/uapi/linux/bpfilter.h +++ b/include/uapi/linux/bpfilter.h @@ -3,6 +3,10 @@ #define _UAPI_LINUX_BPFILTER_H #include +#include + +#define BPFILTER_STANDARD_TARGET "" +#define BPFILTER_ERROR_TARGET "ERROR" enum { BPFILTER_IPT_SO_SET_REPLACE = 64, @@ -18,4 +22,154 @@ enum { BPFILTER_IPT_GET_MAX, }; +enum { + BPFILTER_XT_TABLE_MAXNAMELEN = 32, + BPFILTER_FUNCTION_MAXNAMELEN = 30, + BPFILTER_EXTENSION_MAXNAMELEN = 29, +}; + +enum { + BPFILTER_NF_DROP = 0, + BPFILTER_NF_ACCEPT = 1, + BPFILTER_NF_STOLEN = 2, + BPFILTER_NF_QUEUE = 3, + BPFILTER_NF_REPEAT = 4, + BPFILTER_NF_STOP = 5, + BPFILTER_NF_MAX_VERDICT = BPFILTER_NF_STOP, + BPFILTER_RETURN = (-BPFILTER_NF_REPEAT - 1), +}; + +enum { + BPFILTER_INET_HOOK_PRE_ROUTING = 0, + BPFILTER_INET_HOOK_LOCAL_IN = 1, + BPFILTER_INET_HOOK_FORWARD = 2, + BPFILTER_INET_HOOK_LOCAL_OUT = 3, + BPFILTER_INET_HOOK_POST_ROUTING = 4, + BPFILTER_INET_HOOK_MAX, +}; + +enum { + BPFILTER_IPT_F_MASK = 0x03, + BPFILTER_IPT_INV_MASK = 0x7f +}; + +struct bpfilter_ipt_match { + union { + struct { + __u16 match_size; + char name[BPFILTER_EXTENSION_MAXNAMELEN]; + __u8 revision; + } user; + struct { + __u16 match_size; + void *match; + } kernel; + __u16 match_size; + } u; + unsigned char data[]; +}; + +struct bpfilter_ipt_target { + union { + struct { + __u16 target_size; + char name[BPFILTER_EXTENSION_MAXNAMELEN]; + __u8 revision; + } user; + struct { + __u16 target_size; + void *target; + } kernel; + __u16 target_size; + } u; + unsigned char data[]; +}; + +struct bpfilter_ipt_standard_target { + struct bpfilter_ipt_target target; + int verdict; +}; + +struct bpfilter_ipt_error_target { + struct bpfilter_ipt_target target; + char error_name[BPFILTER_FUNCTION_MAXNAMELEN]; +}; + +struct bpfilter_ipt_get_info { + char name[BPFILTER_XT_TABLE_MAXNAMELEN]; + __u32 valid_hooks; + __u32 hook_entry[BPFILTER_INET_HOOK_MAX]; + __u32 underflow[BPFILTER_INET_HOOK_MAX]; + __u32 num_entries; + __u32 size; +}; + +struct bpfilter_ipt_counters { + __u64 packet_cnt; + __u64 byte_cnt; +}; + +struct bpfilter_ipt_counters_info { + char name[BPFILTER_XT_TABLE_MAXNAMELEN]; + __u32 num_counters; + struct bpfilter_ipt_counters counters[]; +}; + +struct bpfilter_ipt_get_revision { + char name[BPFILTER_EXTENSION_MAXNAMELEN]; + __u8 revision; +}; + +struct bpfilter_ipt_ip { + __u32 src; + __u32 dst; + __u32 src_mask; + __u32 dst_mask; + char in_iface[IFNAMSIZ]; + char out_iface[IFNAMSIZ]; + __u8 in_iface_mask[IFNAMSIZ]; + __u8 out_iface_mask[IFNAMSIZ]; + __u16 protocol; + __u8 flags; + __u8 invflags; +}; + +struct bpfilter_ipt_entry { + struct bpfilter_ipt_ip ip; + __u32 bfcache; + __u16 target_offset; + __u16 next_offset; + __u32 comefrom; + struct bpfilter_ipt_counters counters; + __u8 elems[]; +}; + +struct bpfilter_ipt_standard_entry { + struct bpfilter_ipt_entry entry; + struct bpfilter_ipt_standard_target target; +}; + +struct bpfilter_ipt_error_entry { + struct bpfilter_ipt_entry entry; + struct bpfilter_ipt_error_target target; +}; + +struct bpfilter_ipt_get_entries { + char name[BPFILTER_XT_TABLE_MAXNAMELEN]; + __u32 size; + struct bpfilter_ipt_entry entries[]; +}; + +struct bpfilter_ipt_replace { + char name[BPFILTER_XT_TABLE_MAXNAMELEN]; + __u32 valid_hooks; + __u32 num_entries; + __u32 size; + __u32 hook_entry[BPFILTER_INET_HOOK_MAX]; + __u32 underflow[BPFILTER_INET_HOOK_MAX]; + __u32 num_counters; + struct bpfilter_ipt_counters *cntrs; + struct bpfilter_ipt_entry entries[]; +}; + #endif /* _UAPI_LINUX_BPFILTER_H */