int main(int argc, char *argv[])
{
struct nl_handle *nlh;
struct rtnl_addr *addr;
struct nl_addr *local;
int err = 1;
if (argc < 3 || !strcmp(argv[1], "-h")) {
printf("Usage: nl-addr-delete <addr> <ifindex>\n");
goto errout;
}
if (nltool_init(argc, argv) < 0)
goto errout;
nlh = nltool_alloc_handle();
if (!nlh)
goto errout;
addr = rtnl_addr_alloc();
if (!addr)
goto errout_free_handle;
if (nltool_connect(nlh, NETLINK_ROUTE) < 0)
goto errout_free_addr;
local = nltool_addr_parse(argv[1]);
if (!local)
goto errout_close;
if (rtnl_addr_set_local(addr, local) < 0) {
fprintf(stderr, "Unable to set local address: %s\n",
nl_geterror());
goto errout_addr_put;
}
rtnl_addr_set_ifindex(addr, strtoul(argv[2], NULL, 0));
if (rtnl_addr_delete(nlh, addr, 0) < 0) {
fprintf(stderr, "Unable to delete address: %s\n",
nl_geterror());
goto errout_addr_put;
}
err = 0;
errout_addr_put:
nl_addr_put(local);
errout_close:
nl_close(nlh);
errout_free_addr:
rtnl_addr_put(addr);
errout_free_handle:
nl_handle_destroy(nlh);
errout:
return err;
}
int main(int argc, char *argv[])
{
struct nl_handle *nlh;
struct nl_cache *link_cache, *addr_cache;
struct rtnl_addr *addr;
struct nl_dump_params params = {
.dp_fd = stdout,
.dp_type = NL_DUMP_BRIEF
};
int err = 1;
if (nltool_init(argc, argv) < 0)
return -1;
nlh = nltool_alloc_handle();
if (!nlh)
return -1;
addr = rtnl_addr_alloc();
if (!addr)
goto errout;
if (argc < 2 || !strcmp(argv[1], "-h"))
print_usage();
if (nltool_connect(nlh, NETLINK_ROUTE) < 0)
goto errout_free;
link_cache = nltool_alloc_link_cache(nlh);
if (!link_cache)
goto errout_close;
addr_cache = nltool_alloc_addr_cache(nlh);
if (!addr_cache)
goto errout_link_cache;
params.dp_type = nltool_parse_dumptype(argv[1]);
if (params.dp_type < 0)
goto errout_addr_cache;
get_filter(addr, argc, argv, 2, link_cache);
nl_cache_dump_filter(addr_cache, ¶ms, (struct nl_object *) addr);
err = 0;
errout_addr_cache:
nl_cache_free(addr_cache);
errout_link_cache:
nl_cache_free(link_cache);
errout_close:
nl_close(nlh);
errout_free:
rtnl_addr_put(addr);
errout:
return err;
}
int main(int argc, char *argv[])
{
struct nl_handle *nlh;
struct nl_cache *link_cache;
int err = 1;
if (nltool_init(argc, argv) < 0)
return -1;
if (argc < 3 || !strcmp(argv[1], "-h"))
print_usage();
nlh = nltool_alloc_handle();
if (!nlh)
return -1;
if (nltool_connect(nlh, NETLINK_ROUTE) < 0)
goto errout;
link_cache = nltool_alloc_link_cache(nlh);
if (!link_cache)
goto errout_close;
gargv = &argv[2];
gargc = argc - 2;
if (!strcasecmp(argv[1], "all"))
nl_cache_foreach(link_cache, dump_stats, NULL);
else {
int ifindex = strtoul(argv[1], NULL, 0);
struct rtnl_link *link = rtnl_link_get(link_cache, ifindex);
if (!link) {
fprintf(stderr, "Could not find ifindex %d\n", ifindex);
goto errout_link_cache;
}
dump_stats((struct nl_object *) link, NULL);
rtnl_link_put(link);
}
err = 0;
errout_link_cache:
nl_cache_free(link_cache);
errout_close:
nl_close(nlh);
errout:
nl_handle_destroy(nlh);
return err;
}
int main(int argc, char *argv[])
{
struct nl_cache *link_cache;
if (nltool_init(argc, argv) < 0)
return -1;
dump_params.dp_fd = stdout;
if (argc > 1) {
if (!strcasecmp(argv[1], "brief"))
dump_params.dp_type = NL_DUMP_BRIEF;
else if (!strcasecmp(argv[1], "full"))
dump_params.dp_type = NL_DUMP_FULL;
else if (!strcasecmp(argv[1], "stats"))
dump_params.dp_type = NL_DUMP_STATS;
}
nl_handle = nltool_alloc_handle();
if (!nl_handle)
return 1;
if (nltool_connect(nl_handle, NETLINK_ROUTE) < 0)
return 1;
link_cache = nltool_alloc_link_cache(nl_handle);
if (!link_cache)
return 1;
qdisc_cache = nltool_alloc_qdisc_cache(nl_handle);
if (!qdisc_cache)
return 1;
nl_cache_foreach(link_cache, &print_link, NULL);
nl_cache_free(qdisc_cache);
nl_cache_free(link_cache);
nl_close(nl_handle);
nl_handle_destroy(nl_handle);
return 0;
}
static void obj_input(struct nl_object *obj, void *arg)
{
struct nfnl_queue_msg *msg = (struct nfnl_queue_msg *) obj;
struct nl_dump_params dp = {
.dp_type = NL_DUMP_STATS,
.dp_fd = stdout,
.dp_dump_msgtype = 1,
};
nfnl_queue_msg_set_verdict(msg, NF_ACCEPT);
nl_object_dump(obj, &dp);
nfnl_queue_msg_send_verdict(nfnlh, msg);
}
static int event_input(struct nl_msg *msg, void *arg)
{
if (nl_msg_parse(msg, &obj_input, NULL) < 0)
fprintf(stderr, "<<EVENT>> Unknown message type\n");
/* Exit nl_recvmsgs_def() and return to the main select() */
return NL_STOP;
}
int main(int argc, char *argv[])
{
struct nl_handle *rtnlh;
struct nl_cache *link_cache;
struct nfnl_queue *queue;
enum nfnl_queue_copy_mode copy_mode;
uint32_t copy_range;
int err = 1;
int family;
if (nltool_init(argc, argv) < 0)
return -1;
nfnlh = nltool_alloc_handle();
if (nfnlh == NULL)
return -1;
nl_disable_sequence_check(nfnlh);
nl_socket_modify_cb(nfnlh, NL_CB_VALID, NL_CB_CUSTOM, event_input, NULL);
if ((argc > 1 && !strcasecmp(argv[1], "-h")) || argc < 3) {
printf("Usage: nf-queue family group [ copy_mode ] "
"[ copy_range ]\n");
return 2;
}
if (nfnl_connect(nfnlh) < 0) {
fprintf(stderr, "%s\n", nl_geterror());
goto errout;
}
family = nl_str2af(argv[1]);
if (family == AF_UNSPEC) {
fprintf(stderr, "Unknown family: %s\n", argv[1]);
goto errout;
}
nfnl_queue_pf_unbind(nfnlh, family);
if (nfnl_queue_pf_bind(nfnlh, family) < 0) {
fprintf(stderr, "%s\n", nl_geterror());
goto errout;
}
queue = nfnl_queue_alloc();
if (queue == NULL) {
fprintf(stderr, "%s\n", nl_geterror());
goto errout;
}
nfnl_queue_set_group(queue, atoi(argv[2]));
copy_mode = NFNL_QUEUE_COPY_PACKET;
if (argc > 3) {
copy_mode = nfnl_queue_str2copy_mode(argv[3]);
if (copy_mode < 0) {
fprintf(stderr, "%s\n", nl_geterror());
goto errout;
}
}
nfnl_queue_set_copy_mode(queue, copy_mode);
copy_range = 0xFFFF;
if (argc > 4)
copy_range = atoi(argv[4]);
nfnl_queue_set_copy_range(queue, copy_range);
if (nfnl_queue_create(nfnlh, queue) < 0) {
fprintf(stderr, "%s\n", nl_geterror());
goto errout;
}
rtnlh = nltool_alloc_handle();
if (rtnlh == NULL) {
goto errout_close;
}
if (nl_connect(rtnlh, NETLINK_ROUTE) < 0) {
fprintf(stderr, "%s\n", nl_geterror());
goto errout;
}
if ((link_cache = rtnl_link_alloc_cache(rtnlh)) == NULL) {
fprintf(stderr, "%s\n", nl_geterror());
goto errout_close;
}
nl_cache_mngt_provide(link_cache);
while (1) {
fd_set rfds;
int nffd, rtfd, maxfd, retval;
FD_ZERO(&rfds);
maxfd = nffd = nl_socket_get_fd(nfnlh);
FD_SET(nffd, &rfds);
rtfd = nl_socket_get_fd(rtnlh);
FD_SET(rtfd, &rfds);
if (maxfd < rtfd)
maxfd = rtfd;
/* wait for an incoming message on the netlink socket */
retval = select(maxfd+1, &rfds, NULL, NULL, NULL);
if (retval) {
if (FD_ISSET(nffd, &rfds))
nl_recvmsgs_default(nfnlh);
if (FD_ISSET(rtfd, &rfds))
nl_recvmsgs_default(rtnlh);
}
}
nl_cache_mngt_unprovide(link_cache);
nl_cache_free(link_cache);
nfnl_queue_put(queue);
nl_close(rtnlh);
nl_handle_destroy(rtnlh);
errout_close:
nl_close(nfnlh);
nl_handle_destroy(nfnlh);
errout:
return err;
}
int main(int argc, char *argv[])
{
struct nl_sock *nlh;
struct rtnl_qdisc *qdisc;
uint32_t handle, parent;
int err = 1;
if (nltool_init(argc, argv) < 0)
return -1;
if (argc < 5 || !strcmp(argv[1], "-h"))
print_usage();
nlh = nltool_alloc_handle();
if (!nlh)
goto errout;
qdisc = rtnl_qdisc_alloc();
if (!qdisc)
goto errout_free_handle;
rtnl_qdisc_set_ifindex(qdisc, strtoul(argv[1], NULL, 0));
if (rtnl_tc_str2handle(argv[2], &handle) < 0) {
fprintf(stderr, "%s\n", nl_geterror());
goto errout_free_qdisc;
}
if (rtnl_tc_str2handle(argv[3], &parent) < 0) {
fprintf(stderr, "%s\n", nl_geterror());
goto errout_free_qdisc;
}
rtnl_qdisc_set_handle(qdisc, handle);
rtnl_qdisc_set_parent(qdisc, parent);
rtnl_qdisc_set_kind(qdisc, argv[4]);
if (!strcasecmp(argv[4], "blackhole"))
err = parse_blackhole_opts(qdisc, &argv[5], argc-5);
else if (!strcasecmp(argv[4], "pfifo"))
err = parse_pfifo_opts(qdisc, &argv[5], argc-5);
else if (!strcasecmp(argv[4], "bfifo"))
err = parse_bfifo_opts(qdisc, &argv[5], argc-5);
else if (!strcasecmp(argv[4], "prio"))
err = parse_prio_opts(qdisc, &argv[5], argc-5);
else {
fprintf(stderr, "Unknown qdisc \"%s\"\n", argv[4]);
goto errout_free_qdisc;
}
if (err < 0)
goto errout_free_qdisc;
if (nltool_connect(nlh, NETLINK_ROUTE) < 0)
goto errout_free_qdisc;
if (rtnl_qdisc_add(nlh, qdisc, NLM_F_REPLACE) < 0) {
fprintf(stderr, "Unable to add Qdisc: %s\n", nl_geterror());
goto errout_close;
}
err = 0;
errout_close:
nl_close(nlh);
errout_free_qdisc:
rtnl_qdisc_put(qdisc);
errout_free_handle:
nl_handle_destroy(nlh);
errout:
return err;
}
int main(int argc, char *argv[])
{
struct nl_handle *nlh;
struct nl_cache *link_cache, *route_cache;
struct nl_addr *dst;
struct rtnl_route *route;
struct ip_lookup_res res;
struct nl_dump_params params = {
.dp_fd = stdout,
.dp_type = NL_DUMP_FULL
};
int err = 1;
if (argc < 2 || !strcmp(argv[1], "-h"))
print_usage();
if (nltool_init(argc, argv) < 0)
goto errout;
nlh = nltool_alloc_handle();
if (!nlh)
goto errout;
route = rtnl_route_alloc();
if (!route)
goto errout_free_handle;
if (nltool_connect(nlh, NETLINK_ROUTE) < 0)
goto errout_free_route;
link_cache = nltool_alloc_link_cache(nlh);
if (!link_cache)
goto errout_close;
dst = nltool_addr_parse(argv[1]);
if (!dst)
goto errout_link_cache;
route_cache = nltool_alloc_route_cache(nlh);
if (!route_cache)
goto errout_addr_put;
{
struct nl_msg *m;
struct rtmsg rmsg = {
.rtm_family = nl_addr_get_family(dst),
.rtm_dst_len = nl_addr_get_prefixlen(dst),
};
m = nlmsg_alloc_simple(RTM_GETROUTE, 0);
nlmsg_append(m, &rmsg, sizeof(rmsg), NLMSG_ALIGNTO);
nla_put_addr(m, RTA_DST, dst);
if ((err = nl_send_auto_complete(nlh, m)) < 0) {
nlmsg_free(m);
fprintf(stderr, "%s\n", nl_geterror());
goto errout_route_cache;
}
nlmsg_free(m);
nl_socket_modify_cb(nlh, NL_CB_VALID, NL_CB_CUSTOM, cb,
route_cache);
if (nl_recvmsgs_default(nlh) < 0) {
fprintf(stderr, "%s\n", nl_geterror());
goto errout_route_cache;
}
}
rtnl_route_set_dst(route, dst);
nl_cache_dump_filter(route_cache, ¶ms, (struct nl_object *) route);
memset(&res, 0, sizeof(res));
nl_cache_foreach_filter(route_cache, (struct nl_object *) route, route_proc_cb,
&res);
printf("ip lookup result: oif idx: %d oif name %s ",
res.oif, res.oifname);
if (res.nh_addr) {
char buf[INET_ADDRSTRLEN];
inet_ntop(AF_INET, &res.nh_addr, buf, sizeof(buf));
printf("via %s", buf);
}
printf ("\n");
err = 0;
errout_route_cache:
nl_cache_free(route_cache);
errout_addr_put:
nl_addr_put(dst);
errout_link_cache:
nl_cache_free(link_cache);
errout_close:
nl_close(nlh);
errout_free_route:
rtnl_route_put(route);
errout_free_handle:
nl_handle_destroy(nlh);
errout:
return err;
}
static void obj_input(struct nl_object *obj, void *arg)
{
struct nl_dump_params dp = {
.dp_type = NL_DUMP_STATS,
.dp_fd = stdout,
.dp_dump_msgtype = 1,
};
nl_object_dump(obj, &dp);
}
static int event_input(struct nl_msg *msg, void *arg)
{
if (nl_msg_parse(msg, &obj_input, NULL) < 0)
fprintf(stderr, "<<EVENT>> Unknown message type\n");
/* Exit nl_recvmsgs_def() and return to the main select() */
return NL_STOP;
}
int main(int argc, char *argv[])
{
struct nl_handle *nlh;
int err = 1;
int i, idx;
static const struct {
enum nfnetlink_groups gr_id;
const char* gr_name;
} known_groups[] = {
{ NFNLGRP_CONNTRACK_NEW, "ct-new" },
{ NFNLGRP_CONNTRACK_UPDATE, "ct-update" },
{ NFNLGRP_CONNTRACK_DESTROY, "ct-destroy" },
{ NFNLGRP_NONE, NULL }
};
if (nltool_init(argc, argv) < 0)
return -1;
nlh = nltool_alloc_handle();
if (nlh == NULL)
return -1;
nl_disable_sequence_check(nlh);
nl_socket_modify_cb(nlh, NL_CB_VALID, NL_CB_CUSTOM, event_input, NULL);
if (argc > 1 && !strcasecmp(argv[1], "-h")) {
printf("Usage: nf-monitor [<groups>]\n");
printf("Known groups:");
for (i = 0; known_groups[i].gr_id != NFNLGRP_NONE; i++)
printf(" %s", known_groups[i].gr_name);
printf("\n");
return 2;
}
if (nfnl_connect(nlh) < 0) {
fprintf(stderr, "%s\n", nl_geterror());
goto errout;
}
for (idx = 1; argc > idx; idx++) {
for (i = 0; known_groups[i].gr_id != NFNLGRP_NONE; i++) {
if (!strcmp(argv[idx], known_groups[i].gr_name)) {
if (nl_socket_add_membership(nlh, known_groups[i].gr_id) < 0) {
fprintf(stderr, "%s: %s\n", argv[idx], nl_geterror());
goto errout;
}
break;
}
}
if (known_groups[i].gr_id == NFNLGRP_NONE)
fprintf(stderr, "Warning: Unknown group: %s\n", argv[idx]);
}
while (1) {
fd_set rfds;
int fd, retval;
fd = nl_socket_get_fd(nlh);
FD_ZERO(&rfds);
FD_SET(fd, &rfds);
/* wait for an incoming message on the netlink socket */
retval = select(fd+1, &rfds, NULL, NULL, NULL);
if (retval) {
/* FD_ISSET(fd, &rfds) will be true */
nl_recvmsgs_default(nlh);
}
}
nl_close(nlh);
errout:
return err;
}
