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libertas: convert KEY_MATERIAL to a direct command

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The struct enc_key probably wants to die too, but that can come later.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
David Woodhouse
2008-03-03 12:15:39 +01:00
committed by John W. Linville
parent 17744ff6ae
commit 9e1228d00a
5 changed files with 86 additions and 127 deletions
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137
drivers/net/wireless/libertas/cmd.c
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@ -338,75 +338,103 @@ int lbs_cmd_802_11_enable_rsn(struct lbs_private *priv, uint16_t cmd_action,
return ret;
}
static void set_one_wpa_key(struct MrvlIEtype_keyParamSet * pkeyparamset,
struct enc_key * pkey)
static void set_one_wpa_key(struct MrvlIEtype_keyParamSet *keyparam,
struct enc_key *key)
{
lbs_deb_enter(LBS_DEB_CMD);
if (pkey->flags & KEY_INFO_WPA_ENABLED) {
pkeyparamset->keyinfo |= cpu_to_le16(KEY_INFO_WPA_ENABLED);
}
if (pkey->flags & KEY_INFO_WPA_UNICAST) {
pkeyparamset->keyinfo |= cpu_to_le16(KEY_INFO_WPA_UNICAST);
}
if (pkey->flags & KEY_INFO_WPA_MCAST) {
pkeyparamset->keyinfo |= cpu_to_le16(KEY_INFO_WPA_MCAST);
}
if (key->flags & KEY_INFO_WPA_ENABLED)
keyparam->keyinfo |= cpu_to_le16(KEY_INFO_WPA_ENABLED);
if (key->flags & KEY_INFO_WPA_UNICAST)
keyparam->keyinfo |= cpu_to_le16(KEY_INFO_WPA_UNICAST);
if (key->flags & KEY_INFO_WPA_MCAST)
keyparam->keyinfo |= cpu_to_le16(KEY_INFO_WPA_MCAST);
pkeyparamset->type = cpu_to_le16(TLV_TYPE_KEY_MATERIAL);
pkeyparamset->keytypeid = cpu_to_le16(pkey->type);
pkeyparamset->keylen = cpu_to_le16(pkey->len);
memcpy(pkeyparamset->key, pkey->key, pkey->len);
pkeyparamset->length = cpu_to_le16( sizeof(pkeyparamset->keytypeid)
+ sizeof(pkeyparamset->keyinfo)
+ sizeof(pkeyparamset->keylen)
+ sizeof(pkeyparamset->key));
keyparam->type = cpu_to_le16(TLV_TYPE_KEY_MATERIAL);
keyparam->keytypeid = cpu_to_le16(key->type);
keyparam->keylen = cpu_to_le16(key->len);
memcpy(keyparam->key, key->key, key->len);
/* Length field doesn't include the {type,length} header */
keyparam->length = cpu_to_le16(sizeof(*keyparam) - 4);
lbs_deb_leave(LBS_DEB_CMD);
}
static int lbs_cmd_802_11_key_material(struct lbs_private *priv,
struct cmd_ds_command *cmd,
u16 cmd_action,
u32 cmd_oid, void *pdata_buf)
int lbs_cmd_802_11_key_material(struct lbs_private *priv, uint16_t cmd_action,
struct assoc_request *assoc)
{
struct cmd_ds_802_11_key_material *pkeymaterial =
&cmd->params.keymaterial;
struct assoc_request * assoc_req = pdata_buf;
struct cmd_ds_802_11_key_material cmd;
int ret = 0;
int index = 0;
lbs_deb_enter(LBS_DEB_CMD);
cmd->command = cpu_to_le16(CMD_802_11_KEY_MATERIAL);
pkeymaterial->action = cpu_to_le16(cmd_action);
cmd.action = cpu_to_le16(cmd_action);
cmd.hdr.size = cpu_to_le16(sizeof(cmd));
if (cmd_action == CMD_ACT_GET) {
cmd->size = cpu_to_le16(S_DS_GEN + sizeof (pkeymaterial->action));
ret = 0;
goto done;
cmd.hdr.size = cpu_to_le16(S_DS_GEN + 2);
} else {
memset(cmd.keyParamSet, 0, sizeof(cmd.keyParamSet));
if (test_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc->flags)) {
set_one_wpa_key(&cmd.keyParamSet[index],
&assoc->wpa_unicast_key);
index++;
}
if (test_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc->flags)) {
set_one_wpa_key(&cmd.keyParamSet[index],
&assoc->wpa_mcast_key);
index++;
}
/* The common header and as many keys as we included */
cmd.hdr.size = cpu_to_le16(offsetof(typeof(cmd),
keyParamSet[index]));
}
ret = lbs_cmd_with_response(priv, CMD_802_11_KEY_MATERIAL, &cmd);
/* Copy the returned key to driver private data */
if (!ret && cmd_action == CMD_ACT_GET) {
void *buf_ptr = cmd.keyParamSet;
void *resp_end = &(&cmd)[1];
while (buf_ptr < resp_end) {
struct MrvlIEtype_keyParamSet *keyparam = buf_ptr;
struct enc_key *key;
uint16_t param_set_len = le16_to_cpu(keyparam->length);
uint16_t key_len = le16_to_cpu(keyparam->keylen);
uint16_t key_flags = le16_to_cpu(keyparam->keyinfo);
uint16_t key_type = le16_to_cpu(keyparam->keytypeid);
void *end;
end = (void *)keyparam + sizeof(keyparam->type)
+ sizeof(keyparam->length) + param_set_len;
/* Make sure we don't access past the end of the IEs */
if (end > resp_end)
break;
if (key_flags & KEY_INFO_WPA_UNICAST)
key = &priv->wpa_unicast_key;
else if (key_flags & KEY_INFO_WPA_MCAST)
key = &priv->wpa_mcast_key;
else
break;
/* Copy returned key into driver */
memset(key, 0, sizeof(struct enc_key));
if (key_len > sizeof(key->key))
break;
key->type = key_type;
key->flags = key_flags;
key->len = key_len;
memcpy(key->key, keyparam->key, key->len);
buf_ptr = end + 1;
}
}
memset(&pkeymaterial->keyParamSet, 0, sizeof(pkeymaterial->keyParamSet));
if (test_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc_req->flags)) {
set_one_wpa_key(&pkeymaterial->keyParamSet[index],
&assoc_req->wpa_unicast_key);
index++;
}
if (test_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc_req->flags)) {
set_one_wpa_key(&pkeymaterial->keyParamSet[index],
&assoc_req->wpa_mcast_key);
index++;
}
cmd->size = cpu_to_le16( S_DS_GEN
+ sizeof (pkeymaterial->action)
+ (index * sizeof(struct MrvlIEtype_keyParamSet)));
ret = 0;
done:
lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
return ret;
}
@ -1435,11 +1463,6 @@ int lbs_prepare_and_send_command(struct lbs_private *priv,
ret = lbs_cmd_80211_ad_hoc_stop(priv, cmdptr);
break;
case CMD_802_11_KEY_MATERIAL:
ret = lbs_cmd_802_11_key_material(priv, cmdptr, cmd_action,
cmd_oid, pdata_buf);
break;
case CMD_802_11_PAIRWISE_TSC:
break;
case CMD_802_11_GROUP_TSC: