From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alvaro Neira Subject: [libnftables PATCH 3/3] examples: Add nft-rule-json-add Date: Tue, 20 Aug 2013 17:59:03 +0200 Message-ID: <20130820155903.8850.44422.stgit@Ph0enix> References: <20130820155844.8850.85717.stgit@Ph0enix> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: eric@regit.org To: netfilter-devel@vger.kernel.org Return-path: Received: from mail-we0-f177.google.com ([74.125.82.177]:60089 "EHLO mail-we0-f177.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751906Ab3HTP70 (ORCPT ); Tue, 20 Aug 2013 11:59:26 -0400 Received: by mail-we0-f177.google.com with SMTP id m46so581101wev.22 for ; Tue, 20 Aug 2013 08:59:25 -0700 (PDT) In-Reply-To: <20130820155844.8850.85717.stgit@Ph0enix> Sender: netfilter-devel-owner@vger.kernel.org List-ID: =46rom: =C3=81lvaro Neira Ayuso Signed-off-by: Alvaro Neira Ayuso --- examples/Makefile.am | 4 + examples/nft-rule-json-add.c | 117 ++++++++++++++++++++++++++++++++++= ++++++++ 2 files changed, 121 insertions(+) create mode 100644 examples/nft-rule-json-add.c diff --git a/examples/Makefile.am b/examples/Makefile.am index 8d76f00..639aafb 100644 --- a/examples/Makefile.am +++ b/examples/Makefile.am @@ -14,6 +14,7 @@ check_PROGRAMS =3D nft-table-add \ nft-rule-add \ nft-rule-insert \ nft-rule-xml-add \ + nft-rule-json-add \ nft-rule-del \ nft-rule-get \ nft-events \ @@ -67,6 +68,9 @@ nft_rule_insert_LDADD =3D ../src/libnftables.la ${LIB= MNL_LIBS} ${LIBXML_LIBS} nft_rule_xml_add_SOURCES =3D nft-rule-xml-add.c nft_rule_xml_add_LDADD =3D ../src/libnftables.la ${LIBMNL_LIBS} =20 +nft_rule_json_add_SOURCES =3D nft-rule-json-add.c +nft_rule_json_add_LDADD =3D ../src/libnftables.la ${LIBMNL_LIBS} + nft_rule_del_SOURCES =3D nft-rule-del.c nft_rule_del_LDADD =3D ../src/libnftables.la ${LIBMNL_LIBS} =20 diff --git a/examples/nft-rule-json-add.c b/examples/nft-rule-json-add.= c new file mode 100644 index 0000000..bf56b89 --- /dev/null +++ b/examples/nft-rule-json-add.c @@ -0,0 +1,117 @@ +/* + * (C) 2013 by =C3=81lvaro Neira Ayuso + * + * Based on nft-rule-xml-add from: + * + * (C) 2013 by Pablo Neira Ayuso + * (C) 2013 by Arturo Borrero Gonzalez + * + * This program is free software; you can redistribute it and/or modif= y it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#include +#include +#include +#include /* for offsetof */ +#include +#include +#include +#include +#include +#include + +#include +#include + +#include +#include + +int main(int argc, char *argv[]) +{ + struct mnl_socket *nl; + char buf[MNL_SOCKET_BUFFER_SIZE]; + struct nlmsghdr *nlh; + uint32_t portid, seq; + struct nft_rule *r =3D NULL; + int ret, fd; + uint8_t family; + char json[4096]; + char reprint[4096]; + + if (argc < 2) { + printf("Usage: %s \n", argv[0]); + exit(EXIT_FAILURE); + } + + fd =3D open(argv[1], O_RDONLY); + if (fd < 0) { + perror("open"); + exit(EXIT_FAILURE); + } + + if (read(fd, json, sizeof(json)) < 0) { + perror("read"); + close(fd); + exit(EXIT_FAILURE); + } + close(fd); + + r =3D nft_rule_alloc(); + if (r =3D=3D NULL) { + perror("OOM"); + exit(EXIT_FAILURE); + } + + if (nft_rule_parse(r, NFT_RULE_PARSE_JSON, json) < 0) { + printf("E: Unable to parse JSON file: %s\n", strerror(errno)); + exit(EXIT_FAILURE); + } + + nft_rule_snprintf(reprint, sizeof(reprint), r, NFT_RULE_O_JSON, 0); + printf("Parsed:\n%s\n", reprint); + + nft_rule_attr_unset(r, NFT_RULE_ATTR_HANDLE); + family =3D nft_rule_attr_get_u8(r, NFT_RULE_ATTR_FAMILY); + + seq =3D time(NULL); + nlh =3D nft_rule_nlmsg_build_hdr(buf, NFT_MSG_NEWRULE, family, + NLM_F_CREATE|NLM_F_APPEND|NLM_F_ACK, + seq); + nft_rule_nlmsg_build_payload(nlh, r); + nft_rule_free(r); + + nl =3D mnl_socket_open(NETLINK_NETFILTER); + if (nl =3D=3D NULL) { + perror("mnl_socket_open"); + exit(EXIT_FAILURE); + } + + if (mnl_socket_bind(nl, 0, MNL_SOCKET_AUTOPID) < 0) { + perror("mnl_socket_bind"); + exit(EXIT_FAILURE); + } + portid =3D mnl_socket_get_portid(nl); + + if (mnl_socket_sendto(nl, nlh, nlh->nlmsg_len) < 0) { + perror("mnl_socket_send"); + exit(EXIT_FAILURE); + } + + ret =3D mnl_socket_recvfrom(nl, buf, sizeof(buf)); + while (ret > 0) { + ret =3D mnl_cb_run(buf, ret, seq, portid, NULL, NULL); + if (ret <=3D 0) + break; + ret =3D mnl_socket_recvfrom(nl, buf, sizeof(buf)); + } + if (ret =3D=3D -1) { + perror("error"); + exit(EXIT_FAILURE); + } + mnl_socket_close(nl); + + return EXIT_SUCCESS; +} -- To unsubscribe from this list: send the line "unsubscribe netfilter-dev= el" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html