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| author | Denis Kenzior <denkenz@gmail.com> | 2020-04-02 00:45:55 -0500 |
|---|---|---|
| committer | Denis Kenzior <denkenz@gmail.com> | 2020-04-06 15:56:46 -0500 |
| commit | aba3da32ac847a6d430f917855d30ae34af6cc90 (patch) | |
| tree | 86a996324561df71f87f0348670ccbc23faf2480 | |
| parent | 5576722d2930c720c5ae867b194d5119b0bf7169 (diff) | |
| download | iwd-aba3da32ac847a6d430f917855d30ae34af6cc90.tar.gz | |
netdev: work around APs that send igtk in big endian
It seems some APs send the IGTK key in big endian format (it is a
uin16). The kernel rightly reports an -EINVAL error when iwd issues a
NEW_KEY with such a value, resulting in the connection being aborted.
Work around this by trying to detect big-endian key indexes and 'fixing'
them up.
| -rw-r--r-- | src/netdev.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/netdev.c b/src/netdev.c index 799f01e3b..f999a14c0 100644 --- a/src/netdev.c +++ b/src/netdev.c @@ -1297,6 +1297,14 @@ static void netdev_set_igtk(struct handshake_state *hs, uint16_t key_index, return; } + if (key_index == 0x0400 || key_index == 0x0500) { + l_warn("Received an invalid IGTK key index (%04hx)" + " that is likely in" + " big endian format. Trying to fix and" + " proceed anyway", key_index); + key_index = bswap_16(key_index); + } + msg = nl80211_build_new_key_group(netdev->index, cipher, key_index, igtk_buf, igtk_len, ipn, ipn_len, NULL); |