diff options
| author | Geliang Tang <tanggeliang@kylinos.cn> | 2024-03-05 14:04:32 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2024-03-07 07:24:10 +0300 |
| commit | a4d68b160240815d7ca2f935ba690df33a525dd9 (patch) | |
| tree | c85b3080f507ba2125e2f11340bcf5a7a65bd474 /net/mptcp/pm_netlink.c | |
| parent | 6a42477fe4491e454aaeabfed5708d1eff5ff2ad (diff) | |
| download | linux-a4d68b160240815d7ca2f935ba690df33a525dd9.tar.xz | |
mptcp: set error messages for set_flags
In addition to returning the error value, this patch also sets an error
messages with GENL_SET_ERR_MSG or NL_SET_ERR_MSG_ATTR both for pm_netlink.c
and pm_userspace.c. It will help the userspace to identify the issue.
Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn>
Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://lore.kernel.org/r/20240305-upstream-net-next-20240304-mptcp-misc-cleanup-v1-3-c436ba5e569b@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/mptcp/pm_netlink.c')
| -rw-r--r-- | net/mptcp/pm_netlink.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/net/mptcp/pm_netlink.c b/net/mptcp/pm_netlink.c index c799fe84dfd3..354083b8386f 100644 --- a/net/mptcp/pm_netlink.c +++ b/net/mptcp/pm_netlink.c @@ -1908,8 +1908,10 @@ int mptcp_pm_nl_set_flags(struct sk_buff *skb, struct genl_info *info) if (addr.addr.family == AF_UNSPEC) { lookup_by_id = 1; - if (!addr.addr.id) + if (!addr.addr.id) { + GENL_SET_ERR_MSG(info, "missing required inputs"); return -EOPNOTSUPP; + } } if (addr.flags & MPTCP_PM_ADDR_FLAG_BACKUP) @@ -1919,11 +1921,13 @@ int mptcp_pm_nl_set_flags(struct sk_buff *skb, struct genl_info *info) entry = __lookup_addr(pernet, &addr.addr, lookup_by_id); if (!entry) { spin_unlock_bh(&pernet->lock); + GENL_SET_ERR_MSG(info, "address not found"); return -EINVAL; } if ((addr.flags & MPTCP_PM_ADDR_FLAG_FULLMESH) && (entry->flags & MPTCP_PM_ADDR_FLAG_SIGNAL)) { spin_unlock_bh(&pernet->lock); + GENL_SET_ERR_MSG(info, "invalid addr flags"); return -EINVAL; } |