diff options
| author | Sabrina Dubroca <sd@queasysnail.net> | 2026-03-20 00:02:52 +0100 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2026-03-20 19:05:11 -0700 |
| commit | 52501989c76206462d9b11a8485beef40ef41821 (patch) | |
| tree | 72d9eaf805b050cde39c101bb0faefed27445112 /net | |
| parent | 24dd586bb4cbba1889a50abe74143817a095c1c9 (diff) | |
rtnetlink: count IFLA_PARENT_DEV_{NAME,BUS_NAME} in if_nlmsg_size
Commit 00e77ed8e64d ("rtnetlink: add IFLA_PARENT_[DEV|DEV_BUS]_NAME")
added those attributes to rtnl_fill_ifinfo, but forgot to extend
if_nlmsg_size.
Fixes: 00e77ed8e64d ("rtnetlink: add IFLA_PARENT_[DEV|DEV_BUS]_NAME")
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Link: https://patch.msgid.link/0b849da95562af45487080528d60f578636aba5c.1773919462.git.sd@queasysnail.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net')
| -rw-r--r-- | net/core/rtnetlink.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c index dad4b1054955..0fe279432d82 100644 --- a/net/core/rtnetlink.c +++ b/net/core/rtnetlink.c @@ -1267,6 +1267,21 @@ static size_t rtnl_dpll_pin_size(const struct net_device *dev) return size; } +static size_t rtnl_dev_parent_size(const struct net_device *dev) +{ + size_t size = 0; + + /* IFLA_PARENT_DEV_NAME */ + if (dev->dev.parent) + size += nla_total_size(strlen(dev_name(dev->dev.parent)) + 1); + + /* IFLA_PARENT_DEV_BUS_NAME */ + if (dev->dev.parent && dev->dev.parent->bus) + size += nla_total_size(strlen(dev->dev.parent->bus->name) + 1); + + return size; +} + static noinline size_t if_nlmsg_size(const struct net_device *dev, u32 ext_filter_mask) { @@ -1328,6 +1343,7 @@ static noinline size_t if_nlmsg_size(const struct net_device *dev, + nla_total_size(8) /* IFLA_MAX_PACING_OFFLOAD_HORIZON */ + nla_total_size(2) /* IFLA_HEADROOM */ + nla_total_size(2) /* IFLA_TAILROOM */ + + rtnl_dev_parent_size(dev) + 0; if (!(ext_filter_mask & RTEXT_FILTER_SKIP_STATS)) |