@@ -39,11 +39,12 @@ static struct nft_chain *chain_del_parse(int argc, char *argv[])
int main(int argc, char *argv[])
{
struct mnl_socket *nl;
+ struct mnl_nlmsg_batch *batch;
char buf[MNL_SOCKET_BUFFER_SIZE];
struct nlmsghdr *nlh;
- uint32_t portid, seq;
- struct nft_chain *t = NULL;
- int ret, family;
+ uint32_t portid, seq, chain_seq;
+ struct nft_chain *t;
+ int ret, family, batching;
if (argc != 4) {
fprintf(stderr, "Usage: %s <family> <table> <chain>\n",
@@ -68,11 +69,32 @@ int main(int argc, char *argv[])
if (t == NULL)
exit(EXIT_FAILURE);
+ batching = nft_batch_is_supported();
+ if (batching < 0) {
+ perror("cannot talk to nfnetlink");
+ exit(EXIT_FAILURE);
+ }
+
seq = time(NULL);
- nlh = nft_chain_nlmsg_build_hdr(buf, NFT_MSG_DELCHAIN, family,
- NLM_F_ACK, seq);
+ batch = mnl_nlmsg_batch_start(buf, sizeof(buf));
+
+ if (batching) {
+ nft_batch_begin(mnl_nlmsg_batch_current(batch), seq++);
+ mnl_nlmsg_batch_next(batch);
+ }
+
+ chain_seq = seq;
+ nlh = nft_chain_nlmsg_build_hdr(mnl_nlmsg_batch_current(batch),
+ NFT_MSG_DELCHAIN, family,
+ NLM_F_ACK, seq++);
nft_chain_nlmsg_build_payload(nlh, t);
nft_chain_free(t);
+ mnl_nlmsg_batch_next(batch);
+
+ if (batching) {
+ nft_batch_end(mnl_nlmsg_batch_current(batch), seq++);
+ mnl_nlmsg_batch_next(batch);
+ }
nl = mnl_socket_open(NETLINK_NETFILTER);
if (nl == NULL) {
@@ -86,14 +108,15 @@ int main(int argc, char *argv[])
}
portid = mnl_socket_get_portid(nl);
- if (mnl_socket_sendto(nl, nlh, nlh->nlmsg_len) < 0) {
+ if (mnl_socket_sendto(nl, mnl_nlmsg_batch_head(batch),
+ mnl_nlmsg_batch_size(batch)) < 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);
+ ret = mnl_cb_run(buf, ret, chain_seq, portid, NULL, NULL);
if (ret <= 0)
break;
ret = mnl_socket_recvfrom(nl, buf, sizeof(buf));
Chains are included in the batch since 3.16. Add support to delete chains dependending on the available interface. Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com> --- examples/nft-chain-del.c | 37 ++++++++++++++++++++++++++++++------- 1 file changed, 30 insertions(+), 7 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html