Update this example to use the new mnlio API.
Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@xxxxxxxxx>
---
examples/nft-rule-add.c | 87 ++++-------------------------------------------
1 file changed, 7 insertions(+), 80 deletions(-)
diff --git a/examples/nft-rule-add.c b/examples/nft-rule-add.c
index dbe93f5..7ee73d1 100644
--- a/examples/nft-rule-add.c
+++ b/examples/nft-rule-add.c
@@ -28,6 +28,7 @@
#include <libmnl/libmnl.h>
#include <libnftnl/rule.h>
#include <libnftnl/expr.h>
+#include <libnftnl/mnlio.h>
static void add_payload(struct nft_rule *r, uint32_t base, uint32_t dreg,
uint32_t offset, uint32_t len)
@@ -111,78 +112,12 @@ static struct nft_rule *setup_rule(uint8_t family, const char *table,
return r;
}
-static int seq;
-
-static void nft_mnl_batch_put(struct mnl_nlmsg_batch *batch, int type)
-{
- struct nlmsghdr *nlh;
- struct nfgenmsg *nfg;
-
- nlh = mnl_nlmsg_put_header(mnl_nlmsg_batch_current(batch));
- nlh->nlmsg_type = type;
- nlh->nlmsg_flags = NLM_F_REQUEST;
- nlh->nlmsg_seq = seq++;
-
- nfg = mnl_nlmsg_put_extra_header(nlh, sizeof(*nfg));
- nfg->nfgen_family = AF_INET;
- nfg->version = NFNETLINK_V0;
- nfg->res_id = NFNL_SUBSYS_NFTABLES;
-
- mnl_nlmsg_batch_next(batch);
-}
-
-static int nft_mnl_batch_talk(struct mnl_socket *nl, struct mnl_nlmsg_batch *b)
-{
- int ret, fd = mnl_socket_get_fd(nl);
- char rcv_buf[MNL_SOCKET_BUFFER_SIZE];
- fd_set readfds;
- struct timeval tv = {
- .tv_sec = 0,
- .tv_usec = 0
- };
-
- ret = mnl_socket_sendto(nl, mnl_nlmsg_batch_head(b),
- mnl_nlmsg_batch_size(b));
- if (ret == -1)
- goto err;
-
- FD_ZERO(&readfds);
- FD_SET(fd, &readfds);
-
- /* receive and digest all the acknowledgments from the kernel. */
- ret = select(fd+1, &readfds, NULL, NULL, &tv);
- if (ret == -1)
- goto err;
-
- while (ret > 0 && FD_ISSET(fd, &readfds)) {
- ret = mnl_socket_recvfrom(nl, rcv_buf, sizeof(rcv_buf));
- if (ret == -1)
- goto err;
-
- ret = mnl_cb_run(rcv_buf, ret, 0, mnl_socket_get_portid(nl),
- NULL, NULL);
- if (ret < 0)
- goto err;
-
- ret = select(fd+1, &readfds, NULL, NULL, &tv);
- if (ret == -1)
- goto err;
-
- FD_ZERO(&readfds);
- FD_SET(fd, &readfds);
- }
-err:
- return ret;
-}
-
int main(int argc, char *argv[])
{
struct mnl_socket *nl;
struct nft_rule *r;
- struct nlmsghdr *nlh;
- struct mnl_nlmsg_batch *batch;
+ struct mnl_nlmsg_batch *batch = nft_mnlio_batch_alloc();
uint8_t family;
- char buf[4096];
if (argc != 4) {
fprintf(stderr, "Usage: %s <family> <table> <chain>\n", argv[0]);
@@ -211,28 +146,20 @@ int main(int argc, char *argv[])
exit(EXIT_FAILURE);
}
- batch = mnl_nlmsg_batch_start(buf, sizeof(buf));
-
- nft_mnl_batch_put(batch, NFNL_MSG_BATCH_BEGIN);
+ nft_mnlio_batch_begin(batch);
- nlh = nft_rule_nlmsg_build_hdr(mnl_nlmsg_batch_current(batch),
- NFT_MSG_NEWRULE,
- nft_rule_attr_get_u32(r, NFT_RULE_ATTR_FAMILY),
- NLM_F_APPEND|NLM_F_CREATE, seq);
-
- nft_rule_nlmsg_build_payload(nlh, r);
+ nft_mnlio_rule_add(r, NLM_F_APPEND, batch);
nft_rule_free(r);
- mnl_nlmsg_batch_next(batch);
- nft_mnl_batch_put(batch, NFNL_MSG_BATCH_END);
+ mnl_nlmsg_batch_next(batch);
+ nft_mnlio_batch_end(batch);
- if (nft_mnl_batch_talk(nl, batch) < 0) {
+ if (nft_mnlio_batch_talk(nl, batch) < 0) {
perror("Netlink problem");
exit(EXIT_FAILURE);
}
mnl_nlmsg_batch_stop(batch);
-
mnl_socket_close(nl);
return EXIT_SUCCESS;
--
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