From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 36261C35280 for ; Tue, 8 Oct 2019 16:15:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 19F4320815 for ; Tue, 8 Oct 2019 16:15:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728182AbfJHQPC (ORCPT ); Tue, 8 Oct 2019 12:15:02 -0400 Received: from orbyte.nwl.cc ([151.80.46.58]:48478 "EHLO orbyte.nwl.cc" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725966AbfJHQPC (ORCPT ); Tue, 8 Oct 2019 12:15:02 -0400 Received: from localhost ([::1]:33336 helo=tatos) by orbyte.nwl.cc with esmtp (Exim 4.91) (envelope-from ) id 1iHs8b-0004Um-MM; Tue, 08 Oct 2019 18:15:01 +0200 From: Phil Sutter To: Pablo Neira Ayuso Cc: netfilter-devel@vger.kernel.org Subject: [iptables PATCH v3 05/11] nft-cache: Fetch only chains in nft_chain_list_get() Date: Tue, 8 Oct 2019 18:14:41 +0200 Message-Id: <20191008161447.6595-6-phil@nwl.cc> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20191008161447.6595-1-phil@nwl.cc> References: <20191008161447.6595-1-phil@nwl.cc> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: netfilter-devel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netfilter-devel@vger.kernel.org The function is used to return the given table's chains, so fetching chain cache is enough. Add calls to nft_build_cache() in places where a rule cache is required. Signed-off-by: Phil Sutter --- iptables/nft-cache.c | 2 +- iptables/nft.c | 20 ++++++++++++++++++++ 2 files changed, 21 insertions(+), 1 deletion(-) diff --git a/iptables/nft-cache.c b/iptables/nft-cache.c index 22a87e94efd76..5f27aec6d9c30 100644 --- a/iptables/nft-cache.c +++ b/iptables/nft-cache.c @@ -390,7 +390,7 @@ struct nftnl_chain_list *nft_chain_list_get(struct nft_handle *h, if (!t) return NULL; - nft_build_cache(h); + __nft_build_cache(h, NFT_CL_CHAINS); return h->cache->table[t->type].chains; } diff --git a/iptables/nft.c b/iptables/nft.c index 81de10d8a0892..94fabd78e527e 100644 --- a/iptables/nft.c +++ b/iptables/nft.c @@ -1173,6 +1173,14 @@ nft_rule_append(struct nft_handle *h, const char *chain, const char *table, nft_xt_builtin_init(h, table); + /* Since ebtables user-defined chain policies are implemented as last + * rule in nftables, rule cache is required here to treat them right. */ + if (h->family == NFPROTO_BRIDGE) { + c = nft_chain_find(h, table, chain); + if (c && !nft_chain_builtin(c)) + nft_build_cache(h); + } + nft_fn = nft_rule_append; r = nft_rule_new(h, chain, table, data); @@ -1397,6 +1405,8 @@ int nft_rule_save(struct nft_handle *h, const char *table, unsigned int format) struct nftnl_chain *c; int ret = 0; + nft_build_cache(h); + list = nft_chain_list_get(h, table); if (!list) return 0; @@ -1595,6 +1605,10 @@ static int __nft_chain_user_del(struct nftnl_chain *c, void *data) fprintf(stdout, "Deleting chain `%s'\n", nftnl_chain_get_str(c, NFTNL_CHAIN_NAME)); + /* This triggers required policy rule deletion. */ + if (h->family == NFPROTO_BRIDGE) + nft_build_cache(h); + /* XXX This triggers a fast lookup from the kernel. */ nftnl_chain_unset(c, NFTNL_CHAIN_HANDLE); ret = batch_chain_add(h, NFT_COMPAT_CHAIN_USER_DEL, c); @@ -1876,6 +1890,8 @@ nft_rule_find(struct nft_handle *h, struct nftnl_chain *c, void *data, int rulen struct nftnl_rule_iter *iter; bool found = false; + nft_build_cache(h); + if (rulenum >= 0) /* Delete by rule number case */ return nftnl_rule_lookup_byindex(c, rulenum); @@ -2701,6 +2717,8 @@ int ebt_set_user_chain_policy(struct nft_handle *h, const char *table, else return 0; + nft_build_cache(h); + nftnl_chain_set_u32(c, NFTNL_CHAIN_POLICY, pval); return 1; } @@ -3038,6 +3056,8 @@ static int nft_is_chain_compatible(struct nftnl_chain *c, void *data) enum nf_inet_hooks hook; int prio; + nft_build_cache(h); + if (nftnl_rule_foreach(c, nft_is_rule_compatible, NULL)) return -1; -- 2.23.0