1 /*
2  * Copyright (c) 2010-2011 Atheros Communications Inc.
3  * Copyright (c) 2011 Qualcomm Atheros, Inc.
4  *
5  * Permission to use, copy, modify, and/or distribute this software for any
6  * purpose with or without fee is hereby granted, provided that the above
7  * copyright notice and this permission notice appear in all copies.
8  *
9  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16  */
17 
18 #include "testmode.h"
19 #include "debug.h"
20 
21 #include <net/netlink.h>
22 
23 enum ath6kl_tm_attr {
24 	__ATH6KL_TM_ATTR_INVALID	= 0,
25 	ATH6KL_TM_ATTR_CMD		= 1,
26 	ATH6KL_TM_ATTR_DATA		= 2,
27 
28 	/* keep last */
29 	__ATH6KL_TM_ATTR_AFTER_LAST,
30 	ATH6KL_TM_ATTR_MAX		= __ATH6KL_TM_ATTR_AFTER_LAST - 1,
31 };
32 
33 enum ath6kl_tm_cmd {
34 	ATH6KL_TM_CMD_TCMD		= 0,
35 	ATH6KL_TM_CMD_RX_REPORT		= 1,	/* not used anymore */
36 };
37 
38 #define ATH6KL_TM_DATA_MAX_LEN		5000
39 
40 static const struct nla_policy ath6kl_tm_policy[ATH6KL_TM_ATTR_MAX + 1] = {
41 	[ATH6KL_TM_ATTR_CMD]		= { .type = NLA_U32 },
42 	[ATH6KL_TM_ATTR_DATA]		= { .type = NLA_BINARY,
43 					    .len = ATH6KL_TM_DATA_MAX_LEN },
44 };
45 
46 void ath6kl_tm_rx_event(struct ath6kl *ar, void *buf, size_t buf_len)
47 {
48 	struct sk_buff *skb;
49 
50 	if (!buf || buf_len == 0)
51 		return;
52 
53 	skb = cfg80211_testmode_alloc_event_skb(ar->wiphy, buf_len, GFP_KERNEL);
54 	if (!skb) {
55 		ath6kl_warn("failed to allocate testmode rx skb!\n");
56 		return;
57 	}
58 	if (nla_put_u32(skb, ATH6KL_TM_ATTR_CMD, ATH6KL_TM_CMD_TCMD) ||
59 	    nla_put(skb, ATH6KL_TM_ATTR_DATA, buf_len, buf))
60 		goto nla_put_failure;
61 	cfg80211_testmode_event(skb, GFP_KERNEL);
62 	return;
63 
64 nla_put_failure:
65 	kfree_skb(skb);
66 	ath6kl_warn("nla_put failed on testmode rx skb!\n");
67 }
68 
69 int ath6kl_tm_cmd(struct wiphy *wiphy, void *data, int len)
70 {
71 	struct ath6kl *ar = wiphy_priv(wiphy);
72 	struct nlattr *tb[ATH6KL_TM_ATTR_MAX + 1];
73 	int err, buf_len;
74 	void *buf;
75 
76 	err = nla_parse(tb, ATH6KL_TM_ATTR_MAX, data, len,
77 			ath6kl_tm_policy);
78 	if (err)
79 		return err;
80 
81 	if (!tb[ATH6KL_TM_ATTR_CMD])
82 		return -EINVAL;
83 
84 	switch (nla_get_u32(tb[ATH6KL_TM_ATTR_CMD])) {
85 	case ATH6KL_TM_CMD_TCMD:
86 		if (!tb[ATH6KL_TM_ATTR_DATA])
87 			return -EINVAL;
88 
89 		buf = nla_data(tb[ATH6KL_TM_ATTR_DATA]);
90 		buf_len = nla_len(tb[ATH6KL_TM_ATTR_DATA]);
91 
92 		ath6kl_wmi_test_cmd(ar->wmi, buf, buf_len);
93 
94 		return 0;
95 
96 		break;
97 	case ATH6KL_TM_CMD_RX_REPORT:
98 	default:
99 		return -EOPNOTSUPP;
100 	}
101 }
102