diff options
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-agn-rxon.c')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-agn-rxon.c | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rxon.c b/drivers/net/wireless/iwlwifi/iwl-agn-rxon.c index 757443d906b5..7f0448c66b89 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-rxon.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-rxon.c @@ -512,6 +512,79 @@ static void iwl_set_rxon_hwcrypto(struct iwl_priv *priv, } +/* validate RXON structure is valid */ +static int iwl_check_rxon_cmd(struct iwl_priv *priv, + struct iwl_rxon_context *ctx) +{ + struct iwl_rxon_cmd *rxon = &ctx->staging; + u32 errors = 0; + + if (rxon->flags & RXON_FLG_BAND_24G_MSK) { + if (rxon->flags & RXON_FLG_TGJ_NARROW_BAND_MSK) { + IWL_WARN(priv, "check 2.4G: wrong narrow\n"); + errors |= BIT(0); + } + if (rxon->flags & RXON_FLG_RADAR_DETECT_MSK) { + IWL_WARN(priv, "check 2.4G: wrong radar\n"); + errors |= BIT(1); + } + } else { + if (!(rxon->flags & RXON_FLG_SHORT_SLOT_MSK)) { + IWL_WARN(priv, "check 5.2G: not short slot!\n"); + errors |= BIT(2); + } + if (rxon->flags & RXON_FLG_CCK_MSK) { + IWL_WARN(priv, "check 5.2G: CCK!\n"); + errors |= BIT(3); + } + } + if ((rxon->node_addr[0] | rxon->bssid_addr[0]) & 0x1) { + IWL_WARN(priv, "mac/bssid mcast!\n"); + errors |= BIT(4); + } + + /* make sure basic rates 6Mbps and 1Mbps are supported */ + if ((rxon->ofdm_basic_rates & IWL_RATE_6M_MASK) == 0 && + (rxon->cck_basic_rates & IWL_RATE_1M_MASK) == 0) { + IWL_WARN(priv, "neither 1 nor 6 are basic\n"); + errors |= BIT(5); + } + + if (le16_to_cpu(rxon->assoc_id) > 2007) { + IWL_WARN(priv, "aid > 2007\n"); + errors |= BIT(6); + } + + if ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK)) + == (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK)) { + IWL_WARN(priv, "CCK and short slot\n"); + errors |= BIT(7); + } + + if ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK)) + == (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK)) { + IWL_WARN(priv, "CCK and auto detect"); + errors |= BIT(8); + } + + if ((rxon->flags & (RXON_FLG_AUTO_DETECT_MSK | + RXON_FLG_TGG_PROTECT_MSK)) == + RXON_FLG_TGG_PROTECT_MSK) { + IWL_WARN(priv, "TGg but no auto-detect\n"); + errors |= BIT(9); + } + + if (rxon->channel == 0) { + IWL_WARN(priv, "zero channel is invalid\n"); + errors |= BIT(10); + } + + WARN(errors, "Invalid RXON (%#x), channel %d", + errors, le16_to_cpu(rxon->channel)); + + return errors ? -EINVAL : 0; +} + /** * iwlagn_commit_rxon - commit staging_rxon to hardware * |