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qcacld-3.0: Use igtk key type from crypto to process BIP frames

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Use igtk key from crypto to process BIP frames.

Change-Id: I29b41205a5b91f9e17a98c2bcebe0455178318a1
CRs-Fixed: 2662365
This commit is contained in:
Abhishek Singh
2020-04-09 23:32:40 +05:30
committed by nshrivas
parent a5b448fd4e
commit 18fe7a980d
3 changed files with 38 additions and 56 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
core/wma/inc/wma.h
View File

@@ -647,7 +647,6 @@ typedef struct {
/**
* struct wma_igtk_key_t - GTK key
* @key_id: key id
* @key_cipher: key type
*/
typedef struct {
/* IPN is maintained per iGTK keyID
@@ -655,7 +654,6 @@ typedef struct {
* 1st index for iGTK KeyID = 5
*/
wma_igtk_ipn_t key_id[2];
uint32_t key_cipher;
} wma_igtk_key_t;
struct roam_synch_frame_ind {

6
core/wma/src/wma_features.c
View File

@@ -5404,12 +5404,6 @@ void wma_update_set_key(uint8_t session_id, bool pairwise,
return;
}
if (cipher_type == WLAN_CRYPTO_CIPHER_AES_GMAC ||
cipher_type == WLAN_CRYPTO_CIPHER_AES_GMAC_256 ||
cipher_type == WLAN_CRYPTO_CIPHER_AES_CMAC)
iface->key.key_cipher =
wlan_crypto_cipher_to_wmi_cipher(cipher_type);
if (iface) {
wma_reset_ipn(iface, key_index);
iface->is_waiting_for_key = false;

86
core/wma/src/wma_mgmt.c
View File

@@ -3105,16 +3105,29 @@ int wma_process_bip(tp_wma_handle wma_handle,
uint8_t *efrm;
uint8_t *igtk;
uint16_t key_len;
int32_t mgmtcipherset;
enum wlan_crypto_cipher_type key_cipher;
efrm = qdf_nbuf_data(wbuf) + qdf_nbuf_len(wbuf);
if (iface->key.key_cipher == WMI_CIPHER_AES_CMAC) {
mgmtcipherset = wlan_crypto_get_param(iface->vdev,
WLAN_CRYPTO_PARAM_MGMT_CIPHER);
if (!mgmtcipherset || mgmtcipherset < 0) {
wma_err("Invalid key cipher %d", mgmtcipherset);
return -EINVAL;
}
if (mgmtcipherset & (1 << WLAN_CRYPTO_CIPHER_AES_CMAC)) {
key_cipher = WLAN_CRYPTO_CIPHER_AES_CMAC;
mmie_size = cds_get_mmie_size();
} else if (iface->key.key_cipher == WMI_CIPHER_AES_GMAC ||
iface->key.key_cipher == WMI_CIPHER_BIP_GMAC_256) {
} else if (mgmtcipherset & (1 << WLAN_CRYPTO_CIPHER_AES_GMAC)) {
key_cipher = WLAN_CRYPTO_CIPHER_AES_GMAC;
mmie_size = cds_get_gmac_mmie_size();
} else if (mgmtcipherset & (1 << WLAN_CRYPTO_CIPHER_AES_GMAC_256)) {
key_cipher = WLAN_CRYPTO_CIPHER_AES_GMAC_256;
mmie_size = cds_get_gmac_mmie_size();
} else {
WMA_LOGE(FL("Invalid key cipher %d"), iface->key.key_cipher);
wma_err("Invalid key cipher %d", mgmtcipherset);
return -EINVAL;
}
@@ -3131,65 +3144,42 @@ int wma_process_bip(tp_wma_handle wma_handle,
return -EINVAL;
}
wma_debug("key_cipher %d key_id %d", iface->key.key_cipher, key_id);
wma_debug("key_cipher %d key_id %d", key_cipher, key_id);
igtk = wma_get_igtk(iface, &key_len, key_id);
switch (iface->key.key_cipher) {
case WMI_CIPHER_AES_CMAC:
if (wmi_service_enabled(wma_handle->wmi_handle,
wmi_service_sta_pmf_offload)) {
/*
* if 11w offload is enabled then mmie validation is
* performed in firmware, host just need to trim the
* mmie.
*/
qdf_nbuf_trim_tail(wbuf, cds_get_mmie_size());
} else {
if (cds_is_mmie_valid(igtk, iface->key.key_id[
key_id -
WMA_IGTK_KEY_INDEX_4].ipn,
(uint8_t *)wh, efrm)) {
wma_debug("Protected BC/MC frame MMIE validation successful");
/* Remove MMIE */
qdf_nbuf_trim_tail(wbuf, cds_get_mmie_size());
} else {
switch (key_cipher) {
case WLAN_CRYPTO_CIPHER_AES_CMAC:
if (!wmi_service_enabled(wma_handle->wmi_handle,
wmi_service_sta_pmf_offload)) {
if (!cds_is_mmie_valid(igtk, iface->key.key_id[
key_id -
WMA_IGTK_KEY_INDEX_4].ipn,
(uint8_t *)wh, efrm)) {
wma_debug("BC/MC MIC error or MMIE not present, dropping the frame");
return -EINVAL;
}
}
break;
case WMI_CIPHER_AES_GMAC:
case WMI_CIPHER_BIP_GMAC_256:
if (wmi_service_enabled(wma_handle->wmi_handle,
wmi_service_gmac_offload_support)) {
/*
* if gmac offload is enabled then mmie validation is
* performed in firmware, host just need to trim the
* mmie.
*/
wma_debug("Trim GMAC MMIE");
qdf_nbuf_trim_tail(wbuf, cds_get_gmac_mmie_size());
} else {
if (cds_is_gmac_mmie_valid(igtk,
iface->key.key_id[key_id - WMA_IGTK_KEY_INDEX_4].ipn,
(uint8_t *) wh, efrm, key_len)) {
wma_debug("Protected BC/MC frame GMAC MMIE validation successful");
/* Remove MMIE */
qdf_nbuf_trim_tail(wbuf,
cds_get_gmac_mmie_size());
} else {
case WLAN_CRYPTO_CIPHER_AES_GMAC:
case WLAN_CRYPTO_CIPHER_AES_GMAC_256:
if (!wmi_service_enabled(wma_handle->wmi_handle,
wmi_service_gmac_offload_support)) {
if (!cds_is_gmac_mmie_valid(igtk,
iface->key.key_id[key_id -
WMA_IGTK_KEY_INDEX_4].ipn,
(uint8_t *)wh, efrm,
key_len)) {
wma_debug("BC/MC GMAC MIC error or MMIE not present, dropping the frame");
return -EINVAL;
}
}
break;
default:
WMA_LOGE(FL("Unsupported key cipher %d"),
iface->key.key_cipher);
wma_err("Invalid key_type %d", key_cipher);
return -EINVAL;
}
qdf_nbuf_trim_tail(wbuf, mmie_size);
return 0;
}