Add examples for ct expectations.
Add, list and delete ct expectation objects from specified table.
Add expectation object to rule.
Signed-off-by: Stéphane Veyret <sveyret@xxxxxxxxx>
---
examples/Makefile.am | 16 +++
examples/nft-ct-expectation-add.c | 152 +++++++++++++++++++++++
examples/nft-ct-expectation-del.c | 128 +++++++++++++++++++
examples/nft-ct-expectation-get.c | 144 ++++++++++++++++++++++
examples/nft-rule-ct-expectation-add.c | 163 +++++++++++++++++++++++++
5 files changed, 603 insertions(+)
create mode 100644 examples/nft-ct-expectation-add.c
create mode 100644 examples/nft-ct-expectation-del.c
create mode 100644 examples/nft-ct-expectation-get.c
create mode 100644 examples/nft-rule-ct-expectation-add.c
diff --git a/examples/Makefile.am b/examples/Makefile.am
index d044b90..db9164d 100644
--- a/examples/Makefile.am
+++ b/examples/Makefile.am
@@ -29,10 +29,14 @@ check_PROGRAMS = nft-table-add \
nft-flowtable-get \
nft-ruleset-get \
nft-compat-get \
+ nft-ct-expectation-add \
+ nft-ct-expectation-del \
+ nft-ct-expectation-get \
nft-ct-helper-add \
nft-ct-helper-get \
nft-ct-helper-del \
nft-rule-ct-helper-add \
+ nft-rule-ct-expectation-add \
nft-rule-ct-timeout-add
nft_table_add_SOURCES = nft-table-add.c
@@ -122,6 +126,15 @@ nft_ruleset_get_LDADD = ../src/libnftnl.la ${LIBMNL_LIBS}
nft_compat_get_SOURCES = nft-compat-get.c
nft_compat_get_LDADD = ../src/libnftnl.la ${LIBMNL_LIBS}
+nft_ct_expectation_add_SOURCES = nft-ct-expectation-add.c
+nft_ct_expectation_add_LDADD = ../src/libnftnl.la ${LIBMNL_LIBS}
+
+nft_ct_expectation_del_SOURCES = nft-ct-expectation-del.c
+nft_ct_expectation_del_LDADD = ../src/libnftnl.la ${LIBMNL_LIBS}
+
+nft_ct_expectation_get_SOURCES = nft-ct-expectation-get.c
+nft_ct_expectation_get_LDADD = ../src/libnftnl.la ${LIBMNL_LIBS}
+
nft_ct_helper_add_SOURCES = nft-ct-helper-add.c
nft_ct_helper_add_LDADD = ../src/libnftnl.la ${LIBMNL_LIBS}
@@ -134,5 +147,8 @@ nft_ct_helper_del_LDADD = ../src/libnftnl.la ${LIBMNL_LIBS}
nft_rule_ct_helper_add_SOURCES = nft-rule-ct-helper-add.c
nft_rule_ct_helper_add_LDADD = ../src/libnftnl.la ${LIBMNL_LIBS}
+nft_rule_ct_expectation_add_SOURCES = nft-rule-ct-expectation-add.c
+nft_rule_ct_expectation_add_LDADD = ../src/libnftnl.la ${LIBMNL_LIBS}
+
nft_rule_ct_timeout_add_SOURCES = nft-rule-ct-timeout-add.c
nft_rule_ct_timeout_add_LDADD = ../src/libnftnl.la ${LIBMNL_LIBS}
diff --git a/examples/nft-ct-expectation-add.c b/examples/nft-ct-expectation-add.c
new file mode 100644
index 0000000..c930f35
--- /dev/null
+++ b/examples/nft-ct-expectation-add.c
@@ -0,0 +1,152 @@
+/*
+ * (C) 2019 by Stéphane Veyret <sveyret@xxxxxxxxx>
+ *
+ * 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 <time.h>
+#include <string.h>
+#include <netinet/in.h>
+
+#include <linux/netfilter.h>
+
+#include <obj.h>
+#include <libmnl/libmnl.h>
+
+static uint16_t parse_family(char *str, const char *option)
+{
+ if (strcmp(str, "ip") == 0)
+ return NFPROTO_IPV4;
+ else if (strcmp(str, "ip6") == 0)
+ return NFPROTO_IPV6;
+ else if (strcmp(str, "inet") == 0)
+ return NFPROTO_INET;
+ else if (strcmp(str, "arp") == 0)
+ return NFPROTO_INET;
+ else {
+ fprintf(stderr, "Unknown %s: ip, ip6, inet, arp\n", option);
+ exit(EXIT_FAILURE);
+ }
+}
+
+static uint8_t parse_l4proto(char *str)
+{
+ if (strcmp(str, "udp") == 0)
+ return IPPROTO_UDP;
+ else if (strcmp(str, "tcp") == 0)
+ return IPPROTO_TCP;
+ else {
+ fprintf(stderr, "Unknown l4proto: tcp, udp\n");
+ exit(EXIT_FAILURE);
+ }
+ return IPPROTO_TCP;
+}
+
+static struct nftnl_obj *obj_parse(int argc, char *argv[])
+{
+ struct nftnl_obj *t;
+ uint16_t family, l3proto, dport;
+ uint8_t l4proto;
+ uint32_t timeout;
+
+ t = nftnl_obj_alloc();
+ if (t == NULL) {
+ perror("OOM");
+ return NULL;
+ }
+
+ family = parse_family(argv[1], "family");
+ nftnl_obj_set_u32(t, NFTNL_OBJ_FAMILY, family);
+ nftnl_obj_set_u32(t, NFTNL_OBJ_TYPE, NFT_OBJECT_CT_EXPECT);
+ nftnl_obj_set_str(t, NFTNL_OBJ_TABLE, argv[2]);
+ nftnl_obj_set_str(t, NFTNL_OBJ_NAME, argv[3]);
+
+ if (argc > 7) {
+ l3proto = parse_family(argv[7], "l3proto");
+ nftnl_obj_set_u16(t, NFTNL_OBJ_CT_EXPECT_L3PROTO, l3proto);
+ }
+ l4proto = parse_l4proto(argv[4]);
+ nftnl_obj_set_u8(t, NFTNL_OBJ_CT_EXPECT_L4PROTO, l4proto);
+ dport = strtol(argv[5], NULL, 10);
+ nftnl_obj_set_u16(t, NFTNL_OBJ_CT_EXPECT_DPORT, dport);
+ timeout = strtol(argv[6], NULL, 10);
+ nftnl_obj_set_u32(t, NFTNL_OBJ_CT_EXPECT_TIMEOUT, timeout);
+
+ return t;
+}
+
+int main(int argc, char *argv[])
+{
+ struct mnl_socket *nl;
+ char buf[MNL_SOCKET_BUFFER_SIZE];
+ struct nlmsghdr *nlh;
+ uint32_t portid, seq, obj_seq, family;
+ struct nftnl_obj *t;
+ struct mnl_nlmsg_batch *batch;
+ int ret;
+
+ if (argc < 7 || argc > 8) {
+ fprintf(stderr, "%s <family> <table> <name> <l4proto> <dport> <timeout> [l3proto]\n", argv[0]);
+ exit(EXIT_FAILURE);
+ }
+
+ t = obj_parse(argc, argv);
+ if (t == NULL) {
+ exit(EXIT_FAILURE);
+ }
+
+ seq = time(NULL);
+ batch = mnl_nlmsg_batch_start(buf, sizeof(buf));
+
+ nftnl_batch_begin(mnl_nlmsg_batch_current(batch), seq++);
+ mnl_nlmsg_batch_next(batch);
+
+ obj_seq = seq;
+ family = nftnl_obj_get_u32(t, NFTNL_OBJ_FAMILY);
+ nlh = nftnl_nlmsg_build_hdr(mnl_nlmsg_batch_current(batch),
+ NFT_MSG_NEWOBJ, family, NLM_F_ACK | NLM_F_CREATE, seq++);
+ nftnl_obj_nlmsg_build_payload(nlh, t);
+ nftnl_obj_free(t);
+ mnl_nlmsg_batch_next(batch);
+
+ nftnl_batch_end(mnl_nlmsg_batch_current(batch), seq++);
+ mnl_nlmsg_batch_next(batch);
+
+ 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, mnl_nlmsg_batch_head(batch),
+ mnl_nlmsg_batch_size(batch)) < 0) {
+ perror("mnl_socket_send");
+ exit(EXIT_FAILURE);
+ }
+
+ mnl_nlmsg_batch_stop(batch);
+
+ ret = mnl_socket_recvfrom(nl, buf, sizeof(buf));
+ while (ret > 0) {
+ ret = mnl_cb_run(buf, ret, obj_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;
+}
diff --git a/examples/nft-ct-expectation-del.c b/examples/nft-ct-expectation-del.c
new file mode 100644
index 0000000..e38b8bd
--- /dev/null
+++ b/examples/nft-ct-expectation-del.c
@@ -0,0 +1,128 @@
+/*
+ * (C) 2019 by Stéphane Veyret <sveyret@xxxxxxxxx>
+ *
+ * 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.h>
+#include <linux/netfilter/nf_tables.h>
+
+#include <libmnl/libmnl.h>
+#include <libnftnl/object.h>
+
+static uint16_t parse_family(char *str, const char *option)
+{
+ if (strcmp(str, "ip") == 0)
+ return NFPROTO_IPV4;
+ else if (strcmp(str, "ip6") == 0)
+ return NFPROTO_IPV6;
+ else if (strcmp(str, "inet") == 0)
+ return NFPROTO_INET;
+ else if (strcmp(str, "arp") == 0)
+ return NFPROTO_INET;
+ else {
+ fprintf(stderr, "Unknown %s: ip, ip6, inet, arp\n", option);
+ exit(EXIT_FAILURE);
+ }
+}
+
+static struct nftnl_obj *obj_parse(int argc, char *argv[])
+{
+ struct nftnl_obj *t;
+ uint16_t family;
+
+ t = nftnl_obj_alloc();
+ if (t == NULL) {
+ perror("OOM");
+ return NULL;
+ }
+
+ family = parse_family(argv[1], "family");
+ nftnl_obj_set_u32(t, NFTNL_OBJ_FAMILY, family);
+ nftnl_obj_set_u32(t, NFTNL_OBJ_TYPE, NFT_OBJECT_CT_EXPECT);
+ nftnl_obj_set_str(t, NFTNL_OBJ_TABLE, argv[2]);
+ nftnl_obj_set_str(t, NFTNL_OBJ_NAME, argv[3]);
+
+ return t;
+}
+
+int main(int argc, char *argv[])
+{
+ struct mnl_socket *nl;
+ char buf[MNL_SOCKET_BUFFER_SIZE];
+ struct nlmsghdr *nlh;
+ uint32_t portid, seq, obj_seq, family;
+ struct nftnl_obj *t;
+ struct mnl_nlmsg_batch *batch;
+ int ret;
+
+ if (argc != 4) {
+ fprintf(stderr, "%s <family> <table> <name>\n", argv[0]);
+ exit(EXIT_FAILURE);
+ }
+
+ t = obj_parse(argc, argv);
+ if (t == NULL)
+ exit(EXIT_FAILURE);
+
+ seq = time(NULL);
+ batch = mnl_nlmsg_batch_start(buf, sizeof(buf));
+
+ nftnl_batch_begin(mnl_nlmsg_batch_current(batch), seq++);
+ mnl_nlmsg_batch_next(batch);
+
+ obj_seq = seq;
+ family = nftnl_obj_get_u32(t, NFTNL_OBJ_FAMILY);
+ nlh = nftnl_nlmsg_build_hdr(mnl_nlmsg_batch_current(batch),
+ NFT_MSG_DELOBJ, family, NLM_F_ACK,
+ seq++);
+ nftnl_obj_nlmsg_build_payload(nlh, t);
+ mnl_nlmsg_batch_next(batch);
+ nftnl_obj_free(t);
+
+ nftnl_batch_end(mnl_nlmsg_batch_current(batch), seq++);
+ mnl_nlmsg_batch_next(batch);
+
+ 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, mnl_nlmsg_batch_head(batch),
+ mnl_nlmsg_batch_size(batch)) < 0) {
+ perror("mnl_socket_send");
+ exit(EXIT_FAILURE);
+ }
+
+ mnl_nlmsg_batch_stop(batch);
+
+ ret = mnl_socket_recvfrom(nl, buf, sizeof(buf));
+ while (ret > 0) {
+ ret = mnl_cb_run(buf, ret, obj_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;
+}
diff --git a/examples/nft-ct-expectation-get.c b/examples/nft-ct-expectation-get.c
new file mode 100644
index 0000000..405ba9a
--- /dev/null
+++ b/examples/nft-ct-expectation-get.c
@@ -0,0 +1,144 @@
+/*
+ * (C) 2019 by Stéphane Veyret <sveyret@xxxxxxxxx>
+ *
+ * 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.h>
+#include <linux/netfilter/nf_tables.h>
+
+#include <libmnl/libmnl.h>
+#include <libnftnl/object.h>
+
+static uint16_t parse_family(char *str, const char *option)
+{
+ if (strcmp(str, "ip") == 0)
+ return NFPROTO_IPV4;
+ else if (strcmp(str, "ip6") == 0)
+ return NFPROTO_IPV6;
+ else if (strcmp(str, "inet") == 0)
+ return NFPROTO_INET;
+ else if (strcmp(str, "arp") == 0)
+ return NFPROTO_INET;
+ else {
+ fprintf(stderr, "Unknown %s: ip, ip6, inet, arp\n", option);
+ exit(EXIT_FAILURE);
+ }
+}
+
+static struct nftnl_obj *obj_parse(int argc, char *argv[])
+{
+ struct nftnl_obj *t;
+ uint16_t family;
+
+ t = nftnl_obj_alloc();
+ if (t == NULL) {
+ perror("OOM");
+ return NULL;
+ }
+
+ family = parse_family(argv[1], "family");
+ nftnl_obj_set_u32(t, NFTNL_OBJ_FAMILY, family);
+ nftnl_obj_set_u32(t, NFTNL_OBJ_TYPE, NFT_OBJECT_CT_EXPECT);
+ nftnl_obj_set_str(t, NFTNL_OBJ_TABLE, argv[2]);
+
+ if (argc > 3)
+ nftnl_obj_set_str(t, NFTNL_OBJ_NAME, argv[3]);
+
+ return t;
+}
+
+static int obj_cb(const struct nlmsghdr *nlh, void *data)
+{
+ struct nftnl_obj *t;
+ char buf[4096];
+ uint32_t *type = data;
+
+ t = nftnl_obj_alloc();
+ if (t == NULL) {
+ perror("OOM");
+ goto err;
+ }
+
+ if (nftnl_obj_nlmsg_parse(nlh, t) < 0) {
+ perror("nftnl_obj_nlmsg_parse");
+ goto err_free;
+ }
+
+ nftnl_obj_snprintf(buf, sizeof(buf), t, *type, 0);
+ printf("%s\n", buf);
+
+err_free:
+ nftnl_obj_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, family;
+ struct nftnl_obj *t;
+ int ret;
+ uint32_t type = NFTNL_OUTPUT_DEFAULT;
+ uint16_t flags = NLM_F_ACK;
+
+ if (argc < 3 || argc > 4) {
+ fprintf(stderr, "%s <family> <table> [<name>]\n", argv[0]);
+ return EXIT_FAILURE;
+ }
+
+ t = obj_parse(argc, argv);
+ if (t == NULL)
+ exit(EXIT_FAILURE);
+ family = nftnl_obj_get_u32(t, NFTNL_OBJ_FAMILY);
+
+ seq = time(NULL);
+ if (argc < 4)
+ flags = NLM_F_DUMP;
+ nlh = nftnl_nlmsg_build_hdr(buf, NFT_MSG_GETOBJ, family, flags, seq);
+ nftnl_obj_nlmsg_build_payload(nlh, t);
+ nftnl_obj_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, obj_cb, &type);
+ 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;
+}
diff --git a/examples/nft-rule-ct-expectation-add.c b/examples/nft-rule-ct-expectation-add.c
new file mode 100644
index 0000000..794bb2c
--- /dev/null
+++ b/examples/nft-rule-ct-expectation-add.c
@@ -0,0 +1,163 @@
+/*
+ * (C) 2019 by Stéphane Veyret <sveyret@xxxxxxxxx>
+ *
+ * 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 <stddef.h> /* for offsetof */
+#include <netinet/in.h>
+#include <netinet/ip.h>
+#include <netinet/tcp.h>
+#include <arpa/inet.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <errno.h>
+
+#include <linux/netfilter.h>
+#include <linux/netfilter/nfnetlink.h>
+#include <linux/netfilter/nf_tables.h>
+
+#include <libmnl/libmnl.h>
+#include <libnftnl/rule.h>
+#include <libnftnl/expr.h>
+
+static uint16_t parse_family(char *str, const char *option)
+{
+ if (strcmp(str, "ip") == 0)
+ return NFPROTO_IPV4;
+ else if (strcmp(str, "ip6") == 0)
+ return NFPROTO_IPV6;
+ else if (strcmp(str, "inet") == 0)
+ return NFPROTO_INET;
+ else if (strcmp(str, "arp") == 0)
+ return NFPROTO_INET;
+ else {
+ fprintf(stderr, "Unknown %s: ip, ip6, inet, arp\n", option);
+ exit(EXIT_FAILURE);
+ }
+}
+
+static void add_ct_expect(struct nftnl_rule *r, const char *obj_name)
+{
+ struct nftnl_expr *e;
+
+ e = nftnl_expr_alloc("objref");
+ if (e == NULL) {
+ perror("expr objref oom");
+ exit(EXIT_FAILURE);
+ }
+ nftnl_expr_set_str(e, NFTNL_EXPR_OBJREF_IMM_NAME, obj_name);
+ nftnl_expr_set_u32(e, NFTNL_EXPR_OBJREF_IMM_TYPE, NFT_OBJECT_CT_EXPECT);
+
+ nftnl_rule_add_expr(r, e);
+}
+
+static struct nftnl_rule *setup_rule(uint8_t family, const char *table,
+ const char *chain, const char *handle, const char *obj_name)
+{
+ struct nftnl_rule *r = NULL;
+ uint64_t handle_num;
+
+ r = nftnl_rule_alloc();
+ if (r == NULL) {
+ perror("OOM");
+ exit(EXIT_FAILURE);
+ }
+
+ nftnl_rule_set(r, NFTNL_RULE_TABLE, table);
+ nftnl_rule_set(r, NFTNL_RULE_CHAIN, chain);
+ nftnl_rule_set_u32(r, NFTNL_RULE_FAMILY, family);
+
+ if (handle != NULL) {
+ handle_num = atoll(handle);
+ nftnl_rule_set_u64(r, NFTNL_RULE_POSITION, handle_num);
+ }
+
+ add_ct_expect(r, obj_name);
+
+ return r;
+}
+
+int main(int argc, char *argv[])
+{
+ struct mnl_socket *nl;
+ struct nftnl_rule *r;
+ struct nlmsghdr *nlh;
+ struct mnl_nlmsg_batch *batch;
+ uint8_t family;
+ char buf[MNL_SOCKET_BUFFER_SIZE];
+ uint32_t seq = time(NULL);
+ int ret;
+
+ if (argc < 5 || argc > 6) {
+ fprintf(stderr,
+ "Usage: %s <family> <table> <chain> [<handle>] <name>\n",
+ argv[0]);
+ exit(EXIT_FAILURE);
+ }
+ family = parse_family(argv[1], "family");
+
+ if (argc != 6)
+ r = setup_rule(family, argv[2], argv[3], NULL, argv[4]);
+ else
+ r = setup_rule(family, argv[2], argv[3], argv[4], argv[5]);
+
+ 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);
+ }
+
+ batch = mnl_nlmsg_batch_start(buf, sizeof(buf));
+
+ nftnl_batch_begin(mnl_nlmsg_batch_current(batch), seq++);
+ mnl_nlmsg_batch_next(batch);
+
+ nlh = nftnl_rule_nlmsg_build_hdr(mnl_nlmsg_batch_current(batch),
+ NFT_MSG_NEWRULE,
+ nftnl_rule_get_u32(r, NFTNL_RULE_FAMILY),
+ NLM_F_APPEND|NLM_F_CREATE|NLM_F_ACK, seq++);
+
+ nftnl_rule_nlmsg_build_payload(nlh, r);
+ nftnl_rule_free(r);
+ mnl_nlmsg_batch_next(batch);
+
+ nftnl_batch_end(mnl_nlmsg_batch_current(batch), seq++);
+ mnl_nlmsg_batch_next(batch);
+
+ ret = mnl_socket_sendto(nl, mnl_nlmsg_batch_head(batch),
+ mnl_nlmsg_batch_size(batch));
+ if (ret == -1) {
+ perror("mnl_socket_sendto");
+ exit(EXIT_FAILURE);
+ }
+
+ mnl_nlmsg_batch_stop(batch);
+
+ ret = mnl_socket_recvfrom(nl, buf, sizeof(buf));
+ if (ret == -1) {
+ perror("mnl_socket_recvfrom");
+ exit(EXIT_FAILURE);
+ }
+
+ ret = mnl_cb_run(buf, ret, 0, mnl_socket_get_portid(nl), NULL, NULL);
+ if (ret < 0) {
+ perror("mnl_cb_run");
+ exit(EXIT_FAILURE);
+ }
+
+ mnl_socket_close(nl);
+
+ return EXIT_SUCCESS;
+}
--
2.21.0
