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Simplify DSSS Parameter Set 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 only allowed element length is one.

Signed-off-by: Jouni Malinen <j@w1.fi>
This commit is contained in:
Jouni Malinen 2015-04-19 16:32:01 +03:00
parent ae7a42bde2
commit f87c99c787
5 changed files with 5 additions and 5 deletions
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3
src/common/ieee802_11_common.c
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@ -211,8 +211,9 @@ ParseRes ieee802_11_parse_elems(const u8 *start, size_t len,
elems->supp_rates_len = elen;
break;
case WLAN_EID_DS_PARAMS:
if (elen < 1)
break;
elems->ds_params = pos;
elems->ds_params_len = elen;
break;
case WLAN_EID_CF_PARAMS:
case WLAN_EID_TIM:

1
src/common/ieee802_11_common.h
View file

@ -51,7 +51,6 @@ struct ieee802_11_elems {
u8 ssid_len;
u8 supp_rates_len;
u8 ds_params_len;
u8 challenge_len;
u8 erp_info_len;
u8 ext_supp_rates_len;