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iproute2: allow to change slave options via type_slave 

This patch adds the necessary changes to allow altering a slave device's
options via ip link set <device> type <master type>_slave specific-option.
It also adds support to set the bonding slaves' queue_id.

Example:
 ip link set eth0 type bond_slave queue_id 10

Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com>
Acked-by: Jiri Pirko <jiri@resnulli.us>
This commit is contained in:
Nikolay Aleksandrov 2014-09-03 17:57:30 +02:00 committed by Stephen Hemminger
parent 3c682146ae
commit 620ddedada
2 changed files with 38 additions and 3 deletions
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22
ip/iplink.c
View File

@ -88,7 +88,8 @@ void iplink_usage(void)
fprintf(stderr, "\n");
fprintf(stderr, "TYPE := { vlan | veth | vcan | dummy | ifb | macvlan | macvtap |\n");
fprintf(stderr, " bridge | bond | ipoib | ip6tnl | ipip | sit | vxlan |\n");
fprintf(stderr, " gre | gretap | ip6gre | ip6gretap | vti | nlmon }\n");
fprintf(stderr, " gre | gretap | ip6gre | ip6gretap | vti | nlmon |\n");
fprintf(stderr, " bond_slave }\n");
}
exit(-1);
}
@ -702,14 +703,29 @@ static int iplink_modify(int cmd, unsigned int flags, int argc, char **argv)
if (type) {
struct rtattr *linkinfo = NLMSG_TAIL(&req.n);
char slavebuf[128], *ulinep = strchr(type, '_');
int iflatype;
addattr_l(&req.n, sizeof(req), IFLA_LINKINFO, NULL, 0);
addattr_l(&req.n, sizeof(req), IFLA_INFO_KIND, type,
strlen(type));
lu = get_link_kind(type);
if (ulinep && !strcmp(ulinep, "_slave")) {
strncpy(slavebuf, type, sizeof(slavebuf));
slavebuf[sizeof(slavebuf) - 1] = '\0';
ulinep = strchr(slavebuf, '_');
/* check in case it was after sizeof(slavebuf) - 1*/
if (ulinep)
*ulinep = '\0';
lu = get_link_slave_kind(slavebuf);
iflatype = IFLA_INFO_SLAVE_DATA;
} else {
lu = get_link_kind(type);
iflatype = IFLA_INFO_DATA;
}
if (lu && argc) {
struct rtattr * data = NLMSG_TAIL(&req.n);
addattr_l(&req.n, sizeof(req), IFLA_INFO_DATA, NULL, 0);
addattr_l(&req.n, sizeof(req), iflatype, NULL, 0);
if (lu->parse_opt &&
lu->parse_opt(lu, argc, argv, &req.n))

19
ip/iplink_bond_slave.c
View File

@ -80,10 +80,29 @@ static void bond_slave_print_opt(struct link_util *lu, FILE *f, struct rtattr *t
rta_getattr_u16(tb[IFLA_BOND_SLAVE_AD_AGGREGATOR_ID]));
}
static int bond_slave_parse_opt(struct link_util *lu, int argc, char **argv,
struct nlmsghdr *n)
{
__u16 queue_id;
while (argc > 0) {
if (matches(*argv, "queue_id") == 0) {
NEXT_ARG();
if (get_u16(&queue_id, *argv, 0))
invarg("queue_id is invalid", *argv);
addattr16(n, 1024, IFLA_BOND_SLAVE_QUEUE_ID, queue_id);
}
argc--, argv++;
}
return 0;
}
struct link_util bond_slave_link_util = {
.id = "bond",
.maxattr = IFLA_BOND_SLAVE_MAX,
.print_opt = bond_slave_print_opt,
.parse_opt = bond_slave_parse_opt,
.slave = true,
};