int
iface_gre_del(const char *gre_iface)
{
struct softgred_config *cfg = softgred_config_ref();
int ret;
errno = 0;
if ((ret=rtnl_open(&cfg->rth, 0)) < 0)
{
D_DEBUG1("Cannot open rtnetlink\n");
return EXIT_FAILURE;
}
if(!iplink_have_newlink())
{
D_DEBUG1("iplink_have_newlink ret=%d strerror='%s'\n", ret, strerror(errno));
}
else
{
ret = iplink_modify(RTM_DELLINK, 0, gre_iface, NULL, NULL, NULL, NULL);
if (ret != 0)
{
D_DEBUG1("iplink_modify(RTM_DELLINK) ret=%d strerror='%s'\n", ret, strerror(errno));
}
}
rtnl_close(&cfg->rth);
return 1;
}
int do_iplink(int argc, char **argv)
{
if (argc > 0) {
if (iplink_have_newlink()) {
if (matches(*argv, "add") == 0)
return iplink_modify(RTM_NEWLINK,
NLM_F_CREATE|NLM_F_EXCL,
argc-1, argv+1);
if (matches(*argv, "set") == 0 ||
matches(*argv, "change") == 0)
return iplink_modify(RTM_NEWLINK, 0,
argc-1, argv+1);
if (matches(*argv, "replace") == 0)
return iplink_modify(RTM_NEWLINK,
NLM_F_CREATE|NLM_F_REPLACE,
argc-1, argv+1);
if (matches(*argv, "delete") == 0)
return iplink_modify(RTM_DELLINK, 0,
argc-1, argv+1);
} else {
#if IPLINK_IOCTL_COMPAT
if (matches(*argv, "set") == 0)
return do_set(argc-1, argv+1);
#endif
}
if (matches(*argv, "show") == 0 ||
matches(*argv, "lst") == 0 ||
matches(*argv, "list") == 0)
return ipaddr_list_link(argc-1, argv+1);
if (matches(*argv, "help") == 0)
usage();
} else
return ipaddr_list_link(0, NULL);
fprintf(stderr, "Command \"%s\" is unknown, try \"ip link help\".\n", *argv);
exit(-1);
}
int
iface_gre_add(const char *gre_iface,
const char *type,
const char *dev_to_link,
const struct in_addr *in_local,
const struct in_addr *in_remote)
{
struct softgred_config *cfg = softgred_config_ref();
int ret = true;
char *ip_local = strdupa(inet_ntoa(*in_local));
char *ip_remote = strdupa(inet_ntoa(*in_remote));
D_DEBUG1("Creating gre-interface '%s' { .local='%s', .remote='%s' }\n",
gre_iface, ip_local, ip_remote
);
if ((ret=rtnl_open(&cfg->rth, 0)) < 0)
{
D_DEBUG1("rtnl_open ret=%d strerror='%s'\n", ret, strerror(errno));
return EXIT_FAILURE;
}
if (!iplink_have_newlink())
{
D_DEBUG1("iplink_have_newlink ret=%d strerror='%s'\n", ret, strerror(errno));
}
else
{
ret = iplink_modify(RTM_NEWLINK,
NLM_F_CREATE | NLM_F_EXCL,
gre_iface,
dev_to_link,
type,
in_local,
in_remote);
if (ret != 0)
D_DEBUG2("iplink_modify(RTM_NEWLINK) ret=%d strerror='%s'\n", ret, strerror(errno));
}
rtnl_close(&cfg->rth);
return 1;
}
