diff options
author | Pablo Neira Ayuso <pablo@netfilter.org> | 2011-12-28 20:16:46 +0100 |
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committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2011-12-29 15:40:36 +0100 |
commit | 3388d7df304f26617c4487418c05734ae4fce5b8 (patch) | |
tree | c4fe8bb3cd31a8d85a908485e0b79e1817fefdad /examples/nfacct-del.c | |
parent | a69ac90ec039509ef6ec2684bda156ed6d41fc83 (diff) |
src: major API redesign
This patch reworks the initial API. Now it provides functions to:
- allocate/release accounting objects.
- set/unset/get attributes of accounting objects.
- build one netlink message from one accounting object.
- parse one netlink message to one accounting object.
- print one accounting object into a buffer.
Binary layout of nfacct objects are opaque. This is good for
extensibility without breaking backward compatibility.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'examples/nfacct-del.c')
-rw-r--r-- | examples/nfacct-del.c | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/examples/nfacct-del.c b/examples/nfacct-del.c new file mode 100644 index 0000000..7a1190c --- /dev/null +++ b/examples/nfacct-del.c @@ -0,0 +1,67 @@ +#include <stdlib.h> +#include <time.h> +#include <string.h> +#include <libmnl/libmnl.h> +#include <libnetfilter_acct/libnetfilter_acct.h> + +int main(int argc, char *argv[]) +{ + struct mnl_socket *nl; + char buf[MNL_SOCKET_BUFFER_SIZE]; + struct nlmsghdr *nlh; + uint32_t portid, seq; + struct nfacct *nfacct; + int ret; + + if (argc != 2) { + fprintf(stderr, "Usage: %s [name]\n", argv[0]); + exit(EXIT_FAILURE); + } + + nfacct = nfacct_alloc(); + if (nfacct == NULL) { + perror("OOM"); + exit(EXIT_FAILURE); + } + + nfacct_attr_set(nfacct, NFACCT_ATTR_NAME, argv[1]); + + seq = time(NULL); + nlh = nfacct_nlmsg_build_hdr(buf, NFNL_MSG_ACCT_DEL, + NLM_F_ACK, seq); + nfacct_nlmsg_build_payload(nlh, nfacct); + + nfacct_free(nfacct); + + 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, NULL, 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; +} |