#include "utils.h"
#include "ip_common.h"
-static void usage(void)
+static void print_usage(FILE *f)
{
printf("Usage: ip link <options> type veth [peer <options>]\n"
"To get <options> type 'ip link add help'\n");
}
+static void usage(void)
+{
+ print_usage(stderr);
+}
+
static int veth_parse_opt(struct link_util *lu, int argc, char **argv,
- struct nlmsghdr *hdr)
+ struct nlmsghdr *n)
{
- char *name, *type, *link, *dev;
- int err, len;
- struct rtattr * data;
- int group;
+ char *type = NULL;
+ int err;
+ struct rtattr *data;
+ struct ifinfomsg *ifm, *peer_ifm;
+ unsigned int ifi_flags, ifi_change, ifi_index;
if (strcmp(argv[0], "peer") != 0) {
usage();
return -1;
}
- data = NLMSG_TAIL(hdr);
- addattr_l(hdr, 1024, VETH_INFO_PEER, NULL, 0);
+ ifm = NLMSG_DATA(n);
+ ifi_flags = ifm->ifi_flags;
+ ifi_change = ifm->ifi_change;
+ ifi_index = ifm->ifi_index;
+ ifm->ifi_flags = 0;
+ ifm->ifi_change = 0;
+ ifm->ifi_index = 0;
+
+ data = addattr_nest(n, 1024, VETH_INFO_PEER);
- hdr->nlmsg_len += sizeof(struct ifinfomsg);
+ n->nlmsg_len += sizeof(struct ifinfomsg);
- err = iplink_parse(argc - 1, argv + 1, (struct iplink_req *)hdr,
- &name, &type, &link, &dev, &group);
+ err = iplink_parse(argc - 1, argv + 1, (struct iplink_req *)n, &type);
if (err < 0)
return err;
- if (name) {
- len = strlen(name) + 1;
- if (len > IFNAMSIZ)
- invarg("\"name\" too long\n", *argv);
- addattr_l(hdr, 1024, IFLA_IFNAME, name, len);
- }
+ if (type)
+ duparg("type", argv[err]);
+
+ peer_ifm = RTA_DATA(data);
+ peer_ifm->ifi_index = ifm->ifi_index;
+ peer_ifm->ifi_flags = ifm->ifi_flags;
+ peer_ifm->ifi_change = ifm->ifi_change;
+ ifm->ifi_flags = ifi_flags;
+ ifm->ifi_change = ifi_change;
+ ifm->ifi_index = ifi_index;
- data->rta_len = (void *)NLMSG_TAIL(hdr) - (void *)data;
+ addattr_nest_end(n, data);
return argc - 1 - err;
}
+static void veth_print_help(struct link_util *lu, int argc, char **argv,
+ FILE *f)
+{
+ print_usage(f);
+}
+
struct link_util veth_link_util = {
.id = "veth",
.parse_opt = veth_parse_opt,
+ .print_help = veth_print_help,
};