tools: gtp-link: allow to delete links

Add delete command, useful for testing.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Pablo Neira Ayuso 2016-05-08 21:43:40 +02:00
parent 517be89706
commit 448bce4ace
1 changed files with 19 additions and 5 deletions

View File

@ -1,6 +1,8 @@
/* Command line utility to create GTP link */
/* (C) 2014 by sysmocom - s.f.m.c. GmbH
* (C) 2016 by Pablo Neira Ayuso <pablo@netfilter.org>
*
* Author: Pablo Neira Ayuso <pablo@gnumonks.org>
*
* All Rights Reserved
@ -34,6 +36,8 @@
#include <linux/gtp.h>
#include <linux/if_link.h>
#include <libgtpnl/gtpnl.h>
int main(int argc, char *argv[])
{
struct mnl_socket *nl;
@ -44,11 +48,19 @@ int main(int argc, char *argv[])
unsigned int seq, portid, change = 0, flags = 0;
struct nlattr *nest, *nest2;
if (argc != 1) {
printf("Usage: %s\n", argv[0]);
if (argc != 3) {
printf("Usage: %s <add|del> <device>\n", argv[0]);
exit(EXIT_FAILURE);
}
if (!strcmp(argv[1], "del")) {
printf("destroying gtp interface...\n");
if (gtp_dev_destroy(argv[2]) < 0)
perror("gtp_dev_destroy");
return 0;
}
nlh = mnl_nlmsg_put_header(buf);
nlh->nlmsg_type = RTM_NEWLINK;
nlh->nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL |NLM_F_ACK;
@ -58,12 +70,10 @@ int main(int argc, char *argv[])
ifm->ifi_change |= IFF_UP;
ifm->ifi_flags |= IFF_UP;
fprintf(stderr, "WARNING: attaching dummy socket descriptors. Use "
"this command for testing purposes only.\n");
int fd1 = socket(AF_INET, SOCK_DGRAM, 0);
int fd2 = socket(AF_INET, SOCK_DGRAM, 0);
mnl_attr_put_str(nlh, IFLA_IFNAME, "gtp0");
mnl_attr_put_str(nlh, IFLA_IFNAME, argv[2]);
nest = mnl_attr_nest_start(nlh, IFLA_LINKINFO);
mnl_attr_put_str(nlh, IFLA_INFO_KIND, "gtp");
nest2 = mnl_attr_nest_start(nlh, IFLA_INFO_DATA);
@ -107,5 +117,9 @@ int main(int argc, char *argv[])
mnl_socket_close(nl);
fprintf(stderr, "WARNING: attaching dummy socket descriptors. Keep "
"this process running for testing purposes.\n");
pause();
return 0;
}