From mboxrd@z Thu Jan 1 00:00:00 1970 From: Arturo Borrero Gonzalez Subject: [libnftnl PATCH] examples: complete nft-events example Date: Tue, 01 Apr 2014 14:06:44 +0200 Message-ID: <20140401120643.4333.51861.stgit@nfdev.cica.es> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Cc: pablo@netfilter.org To: netfilter-devel@vger.kernel.org Return-path: Received: from smtp3.cica.es ([150.214.5.190]:51293 "EHLO smtp.cica.es" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751600AbaDAMGw (ORCPT ); Tue, 1 Apr 2014 08:06:52 -0400 Sender: netfilter-devel-owner@vger.kernel.org List-ID: Complete nft-events example by adding a basic set & set_elem event notification. Signed-off-by: Arturo Borrero Gonzalez --- examples/nft-events.c | 60 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 60 insertions(+) diff --git a/examples/nft-events.c b/examples/nft-events.c index 150346a..989f4bd 100644 --- a/examples/nft-events.c +++ b/examples/nft-events.c @@ -21,6 +21,7 @@ #include #include #include +#include static int table_cb(const struct nlmsghdr *nlh, int type) { @@ -97,6 +98,57 @@ err: return MNL_CB_OK; } +static int set_cb(const struct nlmsghdr *nlh, int type) +{ + struct nft_set *t; + char buf[4096]; + + t = nft_set_alloc(); + if (t == NULL) { + perror("OOM"); + goto err; + } + + if (nft_set_nlmsg_parse(nlh, t) < 0) { + perror("nft_set_nlmsg_parse"); + goto err_free; + } + + nft_set_snprintf(buf, sizeof(buf), t, NFT_OUTPUT_DEFAULT, 0); + printf("[%s]\t%s\n", type == NFT_MSG_NEWSET ? "NEW" : "DEL", buf); + +err_free: + nft_set_free(t); +err: + return MNL_CB_OK; +} + +static int setelem_cb(const struct nlmsghdr *nlh, int type) +{ + + struct nft_set *s; + char buf[4096]; + + s = nft_set_alloc(); + if (s == NULL) { + perror("OOM"); + goto err; + } + + if (nft_set_elems_nlmsg_parse(nlh, s) < 0) { + perror("nft_set_nlmsg_parse"); + goto err_free; + } + + nft_set_snprintf(buf, sizeof(buf), s, NFT_OUTPUT_DEFAULT, 0); + printf("[%s]\t%s\n", type == NFT_MSG_NEWSETELEM ? "NEW" : "DEL", buf); + +err_free: + nft_set_free(s); +err: + return MNL_CB_OK; +} + static int events_cb(const struct nlmsghdr *nlh, void *data) { int ret = MNL_CB_OK; @@ -115,6 +167,14 @@ static int events_cb(const struct nlmsghdr *nlh, void *data) case NFT_MSG_DELRULE: ret = rule_cb(nlh, type); break; + case NFT_MSG_NEWSET: + case NFT_MSG_DELSET: + ret = set_cb(nlh, type); + break; + case NFT_MSG_NEWSETELEM: + case NFT_MSG_DELSETELEM: + ret = setelem_cb(nlh, type); + break; } return ret;