jeltz/hostap
1
0
Fork 0
Code Issues Pull requests Projects Releases Wiki Activity

BSS: Add wpa_bss_get_vendor_ie_multi_beacon()

Browse source 
This can be used to fetch vendor IEs from Beacon frames.

Signed-hostap: Jouni Malinen <j@w1.fi>
This commit is contained in:
Jouni Malinen 2012-09-02 19:54:42 +03:00
parent a297201df1
commit cf8baca6a5
2 changed files with 34 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

32
wpa_supplicant/bss.c
View file

@ -721,6 +721,38 @@ struct wpabuf * wpa_bss_get_vendor_ie_multi(const struct wpa_bss *bss,
}
struct wpabuf * wpa_bss_get_vendor_ie_multi_beacon(const struct wpa_bss *bss,
u32 vendor_type)
{
struct wpabuf *buf;
const u8 *end, *pos;
buf = wpabuf_alloc(bss->beacon_ie_len);
if (buf == NULL)
return NULL;
pos = (const u8 *) (bss + 1);
pos += bss->ie_len;
end = pos + bss->beacon_ie_len;
while (pos + 1 < end) {
if (pos + 2 + pos[1] > end)
break;
if (pos[0] == WLAN_EID_VENDOR_SPECIFIC && pos[1] >= 4 &&
vendor_type == WPA_GET_BE32(&pos[2]))
wpabuf_put_data(buf, pos + 2 + 4, pos[1] - 4);
pos += 2 + pos[1];
}
if (wpabuf_len(buf) == 0) {
wpabuf_free(buf);
buf = NULL;
}
return buf;
}
int wpa_bss_get_max_rate(const struct wpa_bss *bss)
{
int rate = 0;

2
wpa_supplicant/bss.h
View file

@ -101,6 +101,8 @@ const u8 * wpa_bss_get_ie(const struct wpa_bss *bss, u8 ie);
const u8 * wpa_bss_get_vendor_ie(const struct wpa_bss *bss, u32 vendor_type);
struct wpabuf * wpa_bss_get_vendor_ie_multi(const struct wpa_bss *bss,
u32 vendor_type);
struct wpabuf * wpa_bss_get_vendor_ie_multi_beacon(const struct wpa_bss *bss,
u32 vendor_type);
int wpa_bss_get_max_rate(const struct wpa_bss *bss);
int wpa_bss_get_bit_rates(const struct wpa_bss *bss, u8 **rates);