@@ -1242,6 +1242,20 @@ int print_linkinfo(struct nlmsghdr *n, void *arg)
RTA_PAYLOAD(tb[IFLA_PHYS_SWITCH_ID]),
b1, sizeof(b1)));
}
+
+ if (tb[IFLA_PARENT_DEV_BUS_NAME]) {
+ print_string(PRINT_ANY,
+ "parentbus",
+ "parentbus %s ",
+ rta_getattr_str(tb[IFLA_PARENT_DEV_BUS_NAME]));
+ }
+
+ if (tb[IFLA_PARENT_DEV_NAME]) {
+ print_string(PRINT_ANY,
+ "parentdev",
+ "parentdev %s ",
+ rta_getattr_str(tb[IFLA_PARENT_DEV_NAME]));
+ }
}
if ((do_link || show_details) && tb[IFLA_IFALIAS]) {
@@ -63,7 +63,7 @@ void iplink_usage(void)
{
if (iplink_have_newlink()) {
fprintf(stderr,
- "Usage: ip link add [link DEV] [ name ] NAME\n"
+ "Usage: ip link add [link DEV | parentdev NAME] [ name ] NAME\n"
" [ txqueuelen PACKETS ]\n"
" [ address LLADDR ]\n"
" [ broadcast LLADDR ]\n"
@@ -938,6 +938,10 @@ int iplink_parse(int argc, char **argv, struct iplink_req *req, char **type)
*argv);
addattr32(&req->n, sizeof(*req),
IFLA_GSO_MAX_SEGS, max_segs);
+ } else if (strcmp(*argv, "parentdev") == 0) {
+ NEXT_ARG();
+ addattr_l(&req->n, sizeof(*req), IFLA_PARENT_DEV_NAME,
+ *argv, strlen(*argv) + 1);
} else {
if (matches(*argv, "help") == 0)
usage();
Add support for specifying a parent device (struct device) by its name during the link creation and printing parent name in the links list. This option will be used to create WWAN links and possibly by other device classes that do not have a "natural parent netdev". Add the parent device bus name printing for links list info completeness. But do not add a corresponding command line argument, as we do not have a use case for this attribute. Signed-off-by: Sergey Ryazanov <ryazanov.s.a@gmail.com> --- Changes since v1: * shorten the 'parentdevbus' parameter to 'parentbus', as Parav suggested and Loic recalled Changes since RFC: * add a parent device bus attribute support * shorten the 'parentdev-name' parameter to just 'parentdev' ip/ipaddress.c | 14 ++++++++++++++ ip/iplink.c | 6 +++++- 2 files changed, 19 insertions(+), 1 deletion(-)