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DSCP: Indicate DSCP Policy support in (Re)Association Request frame

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Indicate DSCP Policy capability by including a WFA Capabilities element
containing the relevant bit set to 1 in the (Re)Association Request
frames when enabled by user.

Signed-off-by: Veerendranath Jakkam <vjakkam@codeaurora.org>
This commit is contained in:
Veerendranath Jakkam 2021-08-31 09:37:09 +05:30 committed by Jouni Malinen
parent d57456c1ff
commit a4aae9f9b8
2 changed files with 57 additions and 0 deletions
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6
src/common/ieee802_11_defs.h
View file

@ -1363,6 +1363,8 @@ struct ieee80211_ampe_ie {
#define SAE_PK_OUI_TYPE 0x1f
#define QM_IE_VENDOR_TYPE 0x506f9a22
#define QM_IE_OUI_TYPE 0x22
#define WFA_CAPA_IE_VENDOR_TYPE 0x506f9a23
#define WFA_CAPA_OUI_TYPE 0x23
#define MULTI_AP_SUB_ELEM_TYPE 0x06
#define MULTI_AP_TEAR_DOWN BIT(4)
@ -2475,4 +2477,8 @@ enum dscp_policy_request_type {
#define DSCP_POLICY_CTRL_MORE BIT(0)
#define DSCP_POLICY_CTRL_RESET BIT(1)
/* Wi-Fi Alliance Capabilities element - Capabilities field */
#define WFA_CAPA_QM_DSCP_POLICY BIT(0)
#define WFA_CAPA_QM_UNSOLIC_DSCP BIT(1)
#endif /* IEEE802_11_DEFS_H */

51
wpa_supplicant/wpa_supplicant.c
View file

@ -2803,6 +2803,54 @@ int wpa_is_fils_sk_pfs_supported(struct wpa_supplicant *wpa_s)
#endif /* CONFIG_FILS */
static int wpas_populate_wfa_capa(struct wpa_supplicant *wpa_s,
struct wpa_bss *bss,
u8 *wpa_ie, size_t wpa_ie_len,
size_t max_wpa_ie_len)
{
struct wpabuf *wfa_ie = NULL;
u8 wfa_capa[1];
size_t wfa_ie_len, buf_len;
os_memset(wfa_capa, 0, sizeof(wfa_capa));
if (wpa_s->enable_dscp_policy_capa)
wfa_capa[0] |= WFA_CAPA_QM_DSCP_POLICY;
if (!wfa_capa[0])
return wpa_ie_len;
/* Wi-Fi Alliance element */
buf_len = 1 + /* Element ID */
1 + /* Length */
3 + /* OUI */
1 + /* OUI Type */
1 + /* Capabilities Length */
sizeof(wfa_capa); /* Capabilities */
wfa_ie = wpabuf_alloc(buf_len);
if (!wfa_ie)
return wpa_ie_len;
wpabuf_put_u8(wfa_ie, WLAN_EID_VENDOR_SPECIFIC);
wpabuf_put_u8(wfa_ie, buf_len - 2);
wpabuf_put_be24(wfa_ie, OUI_WFA);
wpabuf_put_u8(wfa_ie, WFA_CAPA_OUI_TYPE);
wpabuf_put_u8(wfa_ie, sizeof(wfa_capa));
wpabuf_put_data(wfa_ie, wfa_capa, sizeof(wfa_capa));
wfa_ie_len = wpabuf_len(wfa_ie);
if (wpa_ie_len + wfa_ie_len <= max_wpa_ie_len) {
wpa_hexdump_buf(MSG_MSGDUMP, "WFA Capabilities element",
wfa_ie);
os_memcpy(wpa_ie + wpa_ie_len, wpabuf_head(wfa_ie),
wfa_ie_len);
wpa_ie_len += wfa_ie_len;
}
wpabuf_free(wfa_ie);
return wpa_ie_len;
}
static u8 * wpas_populate_assoc_ies(
struct wpa_supplicant *wpa_s,
struct wpa_bss *bss, struct wpa_ssid *ssid,
@ -3280,6 +3328,9 @@ pfs_fail:
}
mscs_end:
wpa_ie_len = wpas_populate_wfa_capa(wpa_s, bss, wpa_ie, wpa_ie_len,
max_wpa_ie_len);
if (ssid->multi_ap_backhaul_sta) {
size_t multi_ap_ie_len;