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_userspace.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_userspace.c')
| -rw-r--r-- | net/mptcp/pm_userspace.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/net/mptcp/pm_userspace.c b/net/mptcp/pm_userspace.c index 7ef3b69852f0..9f5d422d5ef6 100644 --- a/net/mptcp/pm_userspace.c +++ b/net/mptcp/pm_userspace.c @@ -563,13 +563,17 @@ int mptcp_userspace_pm_set_flags(struct sk_buff *skb, struct genl_info *info) token_val = nla_get_u32(token); msk = mptcp_token_get_sock(net, token_val); - if (!msk) + if (!msk) { + NL_SET_ERR_MSG_ATTR(info->extack, token, "invalid token"); return ret; + } sk = (struct sock *)msk; - if (!mptcp_pm_is_userspace(msk)) + if (!mptcp_pm_is_userspace(msk)) { + GENL_SET_ERR_MSG(info, "userspace PM not selected"); goto set_flags_err; + } ret = mptcp_pm_parse_entry(attr, info, false, &loc); if (ret < 0) @@ -583,6 +587,7 @@ int mptcp_userspace_pm_set_flags(struct sk_buff *skb, struct genl_info *info) if (loc.addr.family == AF_UNSPEC || rem.addr.family == AF_UNSPEC) { + GENL_SET_ERR_MSG(info, "invalid address families"); ret = -EINVAL; goto set_flags_err; } |