diff options
| author |   David Ahern <dsahern@gmail.com> | 2017-08-07 10:08:10 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2017-08-07 15:16:33 -0700 |
| commit | 53b948356554376ec6f89016376825d48bf396c3 (patch) | |
| tree | 1ae11a0641a1c36712b36d9fed5368f8fd5bdd93 /drivers/net/vrf.c | |
| parent | isdn: kcapi: make capi_version const (diff) | |
| download | linux-dev-53b948356554376ec6f89016376825d48bf396c3.tar.xz linux-dev-53b948356554376ec6f89016376825d48bf396c3.zip | |
net: vrf: Add extack messages for newlink failures
Add extack error messages for failure paths creating vrf devices. Once
extack support is added to iproute2, we go from the unhelpful:
$ ip li add foobar type vrf
RTNETLINK answers: Invalid argument
to:
$ ip li add foobar type vrf
Error: VRF table id is missing
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/vrf.c')
| -rw-r--r-- | drivers/net/vrf.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/drivers/net/vrf.c b/drivers/net/vrf.c index 8a1eaf3c302a..abd2010c48ae 100644 --- a/drivers/net/vrf.c +++ b/drivers/net/vrf.c @@ -1371,10 +1371,14 @@ static int vrf_validate(struct nlattr *tb[], struct nlattr *data[], struct netlink_ext_ack *extack) { if (tb[IFLA_ADDRESS]) { - if (nla_len(tb[IFLA_ADDRESS]) != ETH_ALEN) + if (nla_len(tb[IFLA_ADDRESS]) != ETH_ALEN) { + NL_SET_ERR_MSG(extack, "Invalid hardware address"); return -EINVAL; - if (!is_valid_ether_addr(nla_data(tb[IFLA_ADDRESS]))) + } + if (!is_valid_ether_addr(nla_data(tb[IFLA_ADDRESS]))) { + NL_SET_ERR_MSG(extack, "Invalid hardware address"); return -EADDRNOTAVAIL; + } } return 0; } @@ -1399,12 +1403,17 @@ static int vrf_newlink(struct net *src_net, struct net_device *dev, struct net *net; int err; - if (!data || !data[IFLA_VRF_TABLE]) + if (!data || !data[IFLA_VRF_TABLE]) { + NL_SET_ERR_MSG(extack, "VRF table id is missing"); return -EINVAL; + } vrf->tb_id = nla_get_u32(data[IFLA_VRF_TABLE]); - if (vrf->tb_id == RT_TABLE_UNSPEC) + if (vrf->tb_id == RT_TABLE_UNSPEC) { + NL_SET_ERR_MSG_ATTR(extack, data[IFLA_VRF_TABLE], + "Invalid VRF table id"); return -EINVAL; + } dev->priv_flags |= IFF_L3MDEV_MASTER; |