diff options
author | Pablo Neira Ayuso <pablo@netfilter.org> | 2012-02-29 02:55:00 +0100 |
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committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2012-02-29 03:27:49 +0100 |
commit | f3d2a5ee1af6fc4e548f02e4bc4e143d7d0c8d90 (patch) | |
tree | 0b9505f57ca42303a80e0d827897823ae07c6977 /examples/nfct-timeout-get.c |
initial commit
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'examples/nfct-timeout-get.c')
-rw-r--r-- | examples/nfct-timeout-get.c | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/examples/nfct-timeout-get.c b/examples/nfct-timeout-get.c new file mode 100644 index 0000000..211dedb --- /dev/null +++ b/examples/nfct-timeout-get.c @@ -0,0 +1,104 @@ +/* + * (C) 2005-2012 by Pablo Neira Ayuso <pablo@netfilter.org> + * (C) 2012 by Vyatta Inc. <http://www.vyatta.com> + * + * This program is free software; you can redistribute it and/or modify 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 <stdlib.h> +#include <time.h> +#include <string.h> +#include <netinet/in.h> + +#include <linux/netfilter/nfnetlink_cttimeout.h> +#include <libmnl/libmnl.h> +#include <libnetfilter_cttimeout/libnetfilter_cttimeout.h> + +static int timeout_cb(const struct nlmsghdr *nlh, void *data) +{ + struct nfct_timeout *t; + char buf[4096]; + + t = nfct_timeout_alloc(); + if (t == NULL) { + perror("OOM"); + goto err; + } + + if (nfct_timeout_nlmsg_parse_payload(nlh, t) < 0) { + perror("nfct_timeout_nlmsg_parse_payload"); + goto err_free; + } + + nfct_timeout_snprintf(buf, sizeof(buf), t, 0); + printf("%s\n", buf); + +err_free: + nfct_timeout_free(t); +err: + return MNL_CB_OK; +} + +int main(int argc, char *argv[]) +{ + struct mnl_socket *nl; + char buf[MNL_SOCKET_BUFFER_SIZE]; + struct nlmsghdr *nlh; + uint32_t portid, seq; + struct nfct_timeout *t = NULL; + int ret; + + if (argc == 2) { + t = nfct_timeout_alloc(); + if (t == NULL) { + perror("OOM"); + exit(EXIT_FAILURE); + } + } + + seq = time(NULL); + if (t == NULL) { + nlh = nfct_timeout_nlmsg_build_hdr(buf, IPCTNL_MSG_TIMEOUT_GET, + NLM_F_DUMP, seq); + } else { + nlh = nfct_timeout_nlmsg_build_hdr(buf, IPCTNL_MSG_TIMEOUT_GET, + NLM_F_ACK, seq); + nfct_timeout_attr_set(t, NFCT_TIMEOUT_ATTR_NAME, argv[1]); + nfct_timeout_nlmsg_build_payload(nlh, t); + nfct_timeout_free(t); + } + + nl = mnl_socket_open(NETLINK_NETFILTER); + if (nl == 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 = mnl_socket_get_portid(nl); + + if (mnl_socket_sendto(nl, nlh, nlh->nlmsg_len) < 0) { + perror("mnl_socket_send"); + exit(EXIT_FAILURE); + } + + ret = mnl_socket_recvfrom(nl, buf, sizeof(buf)); + while (ret > 0) { + ret = mnl_cb_run(buf, ret, seq, portid, timeout_cb, NULL); + if (ret <= 0) + break; + ret = mnl_socket_recvfrom(nl, buf, sizeof(buf)); + } + if (ret == -1) { + perror("error"); + exit(EXIT_FAILURE); + } + mnl_socket_close(nl); + + return EXIT_SUCCESS; +} |