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staging: rtl8723au: OnAuth23aClient23a() Use cfg80211_find_ie()

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Use cfg80211_find_ie() and tidy up the code

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jes Sorensen
2014-04-15 19:43:41 +02:00
committed by Greg Kroah-Hartman
parent b1b2bbbdc0
commit 781f65cbf5
1 changed files with 28 additions and 39 deletions
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67
drivers/staging/rtl8723au/core/rtw_mlme_ext.c
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@@ -1023,15 +1023,14 @@ auth_fail:
unsigned int OnAuth23aClient23a(struct rtw_adapter *padapter,
struct recv_frame *precv_frame)
{
unsigned int seq, len, status, algthm, offset;
unsigned char *p;
unsigned int go2asoc = 0;
struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
unsigned int seq, status, algthm, offset;
unsigned int go2asoc = 0;
struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
struct mlme_ext_info *pmlmeinfo = &pmlmeext->mlmext_info;
struct sk_buff *skb = precv_frame->pkt;
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
u8 *pframe = skb->data;
uint pkt_len = skb->len;
const u8 *p, *pframe = skb->data;
int pkt_len = skb->len;
DBG_8723A("%s\n", __func__);
@@ -1045,15 +1044,17 @@ unsigned int OnAuth23aClient23a(struct rtw_adapter *padapter,
offset = ieee80211_has_protected(hdr->frame_control) ? 4: 0;
algthm = le16_to_cpu(*(unsigned short *)((unsigned long)pframe + sizeof(struct ieee80211_hdr_3addr) + offset));
seq = le16_to_cpu(*(unsigned short *)((unsigned long)pframe + sizeof(struct ieee80211_hdr_3addr) + offset + 2));
status = le16_to_cpu(*(unsigned short *)((unsigned long)pframe + sizeof(struct ieee80211_hdr_3addr) + offset + 4));
pframe += sizeof(struct ieee80211_hdr_3addr);
pkt_len -= sizeof(struct ieee80211_hdr_3addr);
if (status != 0)
{
algthm = le16_to_cpu(*(u16 *)(pframe + offset));
seq = le16_to_cpu(*(u16 *)(pframe + offset + 2));
status = le16_to_cpu(*(u16 *)(pframe + offset + 4));
if (status) {
DBG_8723A("clnt auth fail, status: %d\n", status);
if (status == 13)/* pmlmeinfo->auth_algo == dot11AuthAlgrthm_Auto) */
{
/* pmlmeinfo->auth_algo == dot11AuthAlgrthm_Auto) */
if (status == 13) {
if (pmlmeinfo->auth_algo == dot11AuthAlgrthm_Shared)
pmlmeinfo->auth_algo = dot11AuthAlgrthm_Open;
else
@@ -1065,53 +1066,41 @@ unsigned int OnAuth23aClient23a(struct rtw_adapter *padapter,
goto authclnt_fail;
}
if (seq == 2)
{
if (pmlmeinfo->auth_algo == dot11AuthAlgrthm_Shared)
{
/* legendary shared system */
p = rtw_get_ie23a(pframe + sizeof(struct ieee80211_hdr_3addr) + _AUTH_IE_OFFSET_, WLAN_EID_CHALLENGE, (int *)&len,
pkt_len - sizeof(struct ieee80211_hdr_3addr) - _AUTH_IE_OFFSET_);
if (seq == 2) {
if (pmlmeinfo->auth_algo == dot11AuthAlgrthm_Shared) {
/* legendary shared system */
p = cfg80211_find_ie(WLAN_EID_CHALLENGE,
pframe + _AUTH_IE_OFFSET_,
pkt_len - _AUTH_IE_OFFSET_);
if (p == NULL)
{
if (!p) {
/* DBG_8723A("marc: no challenge text?\n"); */
goto authclnt_fail;
}
memcpy((void *)(pmlmeinfo->chg_txt), (void *)(p + 2), len);
memcpy((void *)(pmlmeinfo->chg_txt), p + 2, p[1]);
pmlmeinfo->auth_seq = 3;
issue_auth23a(padapter, NULL, 0);
set_link_timer(pmlmeext, REAUTH_TO);
return _SUCCESS;
}
else
{
} else {
/* open system */
go2asoc = 1;
}
}
else if (seq == 4)
{
} else if (seq == 4) {
if (pmlmeinfo->auth_algo == dot11AuthAlgrthm_Shared)
{
go2asoc = 1;
}
else
{
goto authclnt_fail;
}
}
else
{
} else {
/* this is also illegal */
/* DBG_8723A("marc: clnt auth failed due to illegal seq =%x\n", seq); */
/* DBG_8723A("marc: clnt auth failed due to illegal seq =%x\n",
seq); */
goto authclnt_fail;
}
if (go2asoc)
{
if (go2asoc) {
DBG_8723A_LEVEL(_drv_always_, "auth success, start assoc\n");
start_clnt_assoc23a(padapter);
return _SUCCESS;