From: Anuradha Karuppiah <anurad...@cumulusnetworks.com>
Signed-off-by: Anuradha Karuppiah <anurad...@cumulusnetworks.com>
Signed-off-by: Andy Gospodarek <go...@cumulusnetworks.com>
Signed-off-by: Roopa Prabhu <ro...@cumulusnetworks.com>
Signed-off-by: Wilson Kok <w...@cumulusnetworks.com>
---
include/uapi/linux/if_link.h | 1 +
net/core/rtnetlink.c | 16 ++++++++++++++--
2 files changed, 15 insertions(+), 2 deletions(-)
diff --git a/include/uapi/linux/if_link.h b/include/uapi/linux/if_link.h
index 2c7e8e3..24d68b7 100644
--- a/include/uapi/linux/if_link.h
+++ b/include/uapi/linux/if_link.h
@@ -148,6 +148,7 @@ enum {
IFLA_PHYS_SWITCH_ID,
IFLA_LINK_NETNSID,
IFLA_PHYS_PORT_NAME,
+ IFLA_PROTO_DOWN,
__IFLA_MAX
};
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 01ced4a..4104e27 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -896,7 +896,9 @@ static noinline size_t if_nlmsg_size(const struct
net_device *dev,
+ rtnl_link_get_size(dev) /* IFLA_LINKINFO */
+ rtnl_link_get_af_size(dev) /* IFLA_AF_SPEC */
+ nla_total_size(MAX_PHYS_ITEM_ID_LEN) /* IFLA_PHYS_PORT_ID */
- + nla_total_size(MAX_PHYS_ITEM_ID_LEN); /* IFLA_PHYS_SWITCH_ID */
+ + nla_total_size(MAX_PHYS_ITEM_ID_LEN) /* IFLA_PHYS_SWITCH_ID */
+ + nla_total_size(1); /* IFLA_PROTO_DOWN */
+
}
static int rtnl_vf_ports_fill(struct sk_buff *skb, struct net_device *dev)
@@ -1082,7 +1084,8 @@ static int rtnl_fill_ifinfo(struct sk_buff *skb, struct
net_device *dev,
(dev->ifalias &&
nla_put_string(skb, IFLA_IFALIAS, dev->ifalias)) ||
nla_put_u32(skb, IFLA_CARRIER_CHANGES,
- atomic_read(&dev->carrier_changes)))
+ atomic_read(&dev->carrier_changes)) ||
+ nla_put_u8(skb, IFLA_PROTO_DOWN, dev->proto_down))
goto nla_put_failure;
if (1) {
@@ -1319,6 +1322,7 @@ static const struct nla_policy ifla_policy[IFLA_MAX+1] = {
[IFLA_CARRIER_CHANGES] = { .type = NLA_U32 }, /* ignored */
[IFLA_PHYS_SWITCH_ID] = { .type = NLA_BINARY, .len =
MAX_PHYS_ITEM_ID_LEN },
[IFLA_LINK_NETNSID] = { .type = NLA_S32 },
+ [IFLA_PROTO_DOWN] = { .type = NLA_U8 },
};
static const struct nla_policy ifla_info_policy[IFLA_INFO_MAX+1] = {
@@ -1853,6 +1857,14 @@ static int do_setlink(const struct sk_buff *skb,
}
err = 0;
+ if (tb[IFLA_PROTO_DOWN]) {
+ err = dev_change_proto_down(dev,
+ nla_get_u8(tb[IFLA_PROTO_DOWN]));
+ if (err)
+ goto errout;
+ status |= DO_SETLINK_NOTIFY;
+ }
+
errout:
if (status & DO_SETLINK_MODIFIED) {
if (status & DO_SETLINK_NOTIFY)
--
1.7.10.4
--
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