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@xxxxxxxxx> --- examples/nft-chain-del.c | 37 ++++++++++++++++++++++++++++++------- 1 file changed, 30 insertions(+), 7 deletions(-) diff --git a/examples/nft-chain-del.c b/examples/nft-chain-del.c index 833bce0..2a52a01 100644 --- a/examples/nft-chain-del.c +++ b/examples/nft-chain-del.c @@ -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)); -- To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html