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Simplify VHT Capabilities element parsing

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Check the element length in the parser and remove the length field from
struct ieee802_11_elems since the element is of fixed length.

Signed-off-by: Jouni Malinen <j@w1.fi>
This commit is contained in:
Jouni Malinen 2015-04-19 17:00:45 +03:00
parent baae4cb9b4
commit 40baac0e43
8 changed files with 9 additions and 13 deletions
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3
src/common/ieee802_11_common.c
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@ -286,8 +286,9 @@ ParseRes ieee802_11_parse_elems(const u8 *start, size_t len,
elems->peer_mgmt_len = elen;
break;
case WLAN_EID_VHT_CAP:
if (elen < sizeof(struct ieee80211_vht_capabilities))
break;
elems->vht_capabilities = pos;
elems->vht_capabilities_len = elen;
break;
case WLAN_EID_VHT_OPERATION:
elems->vht_operation = pos;

1
src/common/ieee802_11_common.h
View file

@ -65,7 +65,6 @@ struct ieee802_11_elems {
u8 mesh_config_len;
u8 mesh_id_len;
u8 peer_mgmt_len;
u8 vht_capabilities_len;
u8 vht_operation_len;
u8 vendor_ht_cap_len;
u8 vendor_vht_len;