aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/net/wireless/mac80211_hwsim.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/net/wireless/mac80211_hwsim.c')
-rw-r--r--drivers/net/wireless/mac80211_hwsim.c257
1 files changed, 179 insertions, 78 deletions
diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
index d1464e3e1be2..3a4b8786f7ea 100644
--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -374,6 +374,20 @@ static const struct ieee80211_rate hwsim_rates[] = {
{ .bitrate = 540 }
};
+static const u32 hwsim_ciphers[] = {
+ WLAN_CIPHER_SUITE_WEP40,
+ WLAN_CIPHER_SUITE_WEP104,
+ WLAN_CIPHER_SUITE_TKIP,
+ WLAN_CIPHER_SUITE_CCMP,
+ WLAN_CIPHER_SUITE_CCMP_256,
+ WLAN_CIPHER_SUITE_GCMP,
+ WLAN_CIPHER_SUITE_GCMP_256,
+ WLAN_CIPHER_SUITE_AES_CMAC,
+ WLAN_CIPHER_SUITE_BIP_CMAC_256,
+ WLAN_CIPHER_SUITE_BIP_GMAC_128,
+ WLAN_CIPHER_SUITE_BIP_GMAC_256,
+};
+
#define OUI_QCA 0x001374
#define QCA_NL80211_SUBCMD_TEST 1
enum qca_nl80211_vendor_subcmds {
@@ -451,48 +465,6 @@ static const struct nl80211_vendor_cmd_info mac80211_hwsim_vendor_events[] = {
{ .vendor_id = OUI_QCA, .subcmd = 1 },
};
-static const struct ieee80211_iface_limit hwsim_if_limits[] = {
- { .max = 1, .types = BIT(NL80211_IFTYPE_ADHOC) },
- { .max = 2048, .types = BIT(NL80211_IFTYPE_STATION) |
- BIT(NL80211_IFTYPE_P2P_CLIENT) |
-#ifdef CONFIG_MAC80211_MESH
- BIT(NL80211_IFTYPE_MESH_POINT) |
-#endif
- BIT(NL80211_IFTYPE_AP) |
- BIT(NL80211_IFTYPE_P2P_GO) },
- /* must be last, see hwsim_if_comb */
- { .max = 1, .types = BIT(NL80211_IFTYPE_P2P_DEVICE) }
-};
-
-static const struct ieee80211_iface_combination hwsim_if_comb[] = {
- {
- .limits = hwsim_if_limits,
- /* remove the last entry which is P2P_DEVICE */
- .n_limits = ARRAY_SIZE(hwsim_if_limits) - 1,
- .max_interfaces = 2048,
- .num_different_channels = 1,
- .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
- BIT(NL80211_CHAN_WIDTH_20) |
- BIT(NL80211_CHAN_WIDTH_40) |
- BIT(NL80211_CHAN_WIDTH_80) |
- BIT(NL80211_CHAN_WIDTH_160),
- },
-};
-
-static const struct ieee80211_iface_combination hwsim_if_comb_p2p_dev[] = {
- {
- .limits = hwsim_if_limits,
- .n_limits = ARRAY_SIZE(hwsim_if_limits),
- .max_interfaces = 2048,
- .num_different_channels = 1,
- .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
- BIT(NL80211_CHAN_WIDTH_20) |
- BIT(NL80211_CHAN_WIDTH_40) |
- BIT(NL80211_CHAN_WIDTH_80) |
- BIT(NL80211_CHAN_WIDTH_160),
- },
-};
-
static spinlock_t hwsim_radio_lock;
static LIST_HEAD(hwsim_radios);
static struct rhashtable hwsim_radios_rht;
@@ -515,6 +487,10 @@ struct mac80211_hwsim_data {
struct ieee80211_channel channels_5ghz[ARRAY_SIZE(hwsim_channels_5ghz)];
struct ieee80211_rate rates[ARRAY_SIZE(hwsim_rates)];
struct ieee80211_iface_combination if_combination;
+ struct ieee80211_iface_limit if_limits[3];
+ int n_if_limits;
+
+ u32 ciphers[ARRAY_SIZE(hwsim_ciphers)];
struct mac_address addresses[2];
int channels, idx;
@@ -642,6 +618,8 @@ static const struct nla_policy hwsim_genl_policy[HWSIM_ATTR_MAX + 1] = {
[HWSIM_ATTR_NO_VIF] = { .type = NLA_FLAG },
[HWSIM_ATTR_FREQ] = { .type = NLA_U32 },
[HWSIM_ATTR_PERM_ADDR] = { .type = NLA_UNSPEC, .len = ETH_ALEN },
+ [HWSIM_ATTR_IFTYPE_SUPPORT] = { .type = NLA_U32 },
+ [HWSIM_ATTR_CIPHER_SUPPORT] = { .type = NLA_BINARY },
};
static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
@@ -2414,6 +2392,9 @@ struct hwsim_new_radio_params {
const char *hwname;
bool no_vif;
const u8 *perm_addr;
+ u32 iftypes;
+ u32 *ciphers;
+ u8 n_ciphers;
};
static void hwsim_mcast_config_msg(struct sk_buff *mcast_skb,
@@ -2630,6 +2611,27 @@ static void mac80211_hswim_he_capab(struct ieee80211_supported_band *sband)
sband->n_iftype_data = 1;
}
+#ifdef CONFIG_MAC80211_MESH
+#define HWSIM_MESH_BIT BIT(NL80211_IFTYPE_MESH_POINT)
+#else
+#define HWSIM_MESH_BIT 0
+#endif
+
+#define HWSIM_DEFAULT_IF_LIMIT \
+ (BIT(NL80211_IFTYPE_STATION) | \
+ BIT(NL80211_IFTYPE_P2P_CLIENT) | \
+ BIT(NL80211_IFTYPE_AP) | \
+ BIT(NL80211_IFTYPE_P2P_GO) | \
+ HWSIM_MESH_BIT)
+
+#define HWSIM_IFTYPE_SUPPORT_MASK \
+ (BIT(NL80211_IFTYPE_STATION) | \
+ BIT(NL80211_IFTYPE_AP) | \
+ BIT(NL80211_IFTYPE_P2P_CLIENT) | \
+ BIT(NL80211_IFTYPE_P2P_GO) | \
+ BIT(NL80211_IFTYPE_ADHOC) | \
+ BIT(NL80211_IFTYPE_MESH_POINT))
+
static int mac80211_hwsim_new_radio(struct genl_info *info,
struct hwsim_new_radio_params *param)
{
@@ -2641,6 +2643,7 @@ static int mac80211_hwsim_new_radio(struct genl_info *info,
const struct ieee80211_ops *ops = &mac80211_hwsim_ops;
struct net *net;
int idx;
+ int n_limits = 0;
if (WARN_ON(param->channels > 1 && !param->use_chanctx))
return -EINVAL;
@@ -2716,26 +2719,60 @@ static int mac80211_hwsim_new_radio(struct genl_info *info,
if (info)
data->portid = info->snd_portid;
+ /* setup interface limits, only on interface types we support */
+ if (param->iftypes & BIT(NL80211_IFTYPE_ADHOC)) {
+ data->if_limits[n_limits].max = 1;
+ data->if_limits[n_limits].types = BIT(NL80211_IFTYPE_ADHOC);
+ n_limits++;
+ }
+
+ if (param->iftypes & HWSIM_DEFAULT_IF_LIMIT) {
+ data->if_limits[n_limits].max = 2048;
+ /*
+ * For this case, we may only support a subset of
+ * HWSIM_DEFAULT_IF_LIMIT, therefore we only want to add the
+ * bits that both param->iftype & HWSIM_DEFAULT_IF_LIMIT have.
+ */
+ data->if_limits[n_limits].types =
+ HWSIM_DEFAULT_IF_LIMIT & param->iftypes;
+ n_limits++;
+ }
+
+ if (param->iftypes & BIT(NL80211_IFTYPE_P2P_DEVICE)) {
+ data->if_limits[n_limits].max = 1;
+ data->if_limits[n_limits].types =
+ BIT(NL80211_IFTYPE_P2P_DEVICE);
+ n_limits++;
+ }
+
if (data->use_chanctx) {
hw->wiphy->max_scan_ssids = 255;
hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;
hw->wiphy->max_remain_on_channel_duration = 1000;
- hw->wiphy->iface_combinations = &data->if_combination;
- if (param->p2p_device)
- data->if_combination = hwsim_if_comb_p2p_dev[0];
- else
- data->if_combination = hwsim_if_comb[0];
- hw->wiphy->n_iface_combinations = 1;
- /* For channels > 1 DFS is not allowed */
data->if_combination.radar_detect_widths = 0;
data->if_combination.num_different_channels = data->channels;
- } else if (param->p2p_device) {
- hw->wiphy->iface_combinations = hwsim_if_comb_p2p_dev;
- hw->wiphy->n_iface_combinations =
- ARRAY_SIZE(hwsim_if_comb_p2p_dev);
} else {
- hw->wiphy->iface_combinations = hwsim_if_comb;
- hw->wiphy->n_iface_combinations = ARRAY_SIZE(hwsim_if_comb);
+ data->if_combination.num_different_channels = 1;
+ data->if_combination.radar_detect_widths =
+ BIT(NL80211_CHAN_WIDTH_20_NOHT) |
+ BIT(NL80211_CHAN_WIDTH_20) |
+ BIT(NL80211_CHAN_WIDTH_40) |
+ BIT(NL80211_CHAN_WIDTH_80) |
+ BIT(NL80211_CHAN_WIDTH_160);
+ }
+
+ data->if_combination.n_limits = n_limits;
+ data->if_combination.max_interfaces = 2048;
+ data->if_combination.limits = data->if_limits;
+
+ hw->wiphy->iface_combinations = &data->if_combination;
+ hw->wiphy->n_iface_combinations = 1;
+
+ if (param->ciphers) {
+ memcpy(data->ciphers, param->ciphers,
+ param->n_ciphers * sizeof(u32));
+ hw->wiphy->cipher_suites = data->ciphers;
+ hw->wiphy->n_cipher_suites = param->n_ciphers;
}
INIT_DELAYED_WORK(&data->roc_start, hw_roc_start);
@@ -2744,15 +2781,6 @@ static int mac80211_hwsim_new_radio(struct genl_info *info,
hw->queues = 5;
hw->offchannel_tx_hw_queue = 4;
- hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
- BIT(NL80211_IFTYPE_AP) |
- BIT(NL80211_IFTYPE_P2P_CLIENT) |
- BIT(NL80211_IFTYPE_P2P_GO) |
- BIT(NL80211_IFTYPE_ADHOC) |
- BIT(NL80211_IFTYPE_MESH_POINT);
-
- if (param->p2p_device)
- hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_P2P_DEVICE);
ieee80211_hw_set(hw, SUPPORT_FAST_XMIT);
ieee80211_hw_set(hw, CHANCTX_STA_CSA);
@@ -2778,6 +2806,8 @@ static int mac80211_hwsim_new_radio(struct genl_info *info,
NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR;
wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS);
+ hw->wiphy->interface_modes = param->iftypes;
+
/* ask mac80211 to reserve space for magic */
hw->vif_data_size = sizeof(struct hwsim_vif_priv);
hw->sta_data_size = sizeof(struct hwsim_sta_priv);
@@ -3293,6 +3323,29 @@ static int hwsim_register_received_nl(struct sk_buff *skb_2,
return 0;
}
+/* ensures ciphers only include ciphers listed in 'hwsim_ciphers' array */
+static bool hwsim_known_ciphers(const u32 *ciphers, int n_ciphers)
+{
+ int i;
+
+ for (i = 0; i < n_ciphers; i++) {
+ int j;
+ int found = 0;
+
+ for (j = 0; j < ARRAY_SIZE(hwsim_ciphers); j++) {
+ if (ciphers[i] == hwsim_ciphers[j]) {
+ found = 1;
+ break;
+ }
+ }
+
+ if (!found)
+ return false;
+ }
+
+ return true;
+}
+
static int hwsim_new_radio_nl(struct sk_buff *msg, struct genl_info *info)
{
struct hwsim_new_radio_params param = { 0 };
@@ -3321,15 +3374,6 @@ static int hwsim_new_radio_nl(struct sk_buff *msg, struct genl_info *info)
if (info->attrs[HWSIM_ATTR_NO_VIF])
param.no_vif = true;
- if (info->attrs[HWSIM_ATTR_RADIO_NAME]) {
- hwname = kasprintf(GFP_KERNEL, "%.*s",
- nla_len(info->attrs[HWSIM_ATTR_RADIO_NAME]),
- (char *)nla_data(info->attrs[HWSIM_ATTR_RADIO_NAME]));
- if (!hwname)
- return -ENOMEM;
- param.hwname = hwname;
- }
-
if (info->attrs[HWSIM_ATTR_USE_CHANCTX])
param.use_chanctx = true;
else
@@ -3342,10 +3386,8 @@ static int hwsim_new_radio_nl(struct sk_buff *msg, struct genl_info *info)
if (info->attrs[HWSIM_ATTR_REG_CUSTOM_REG]) {
u32 idx = nla_get_u32(info->attrs[HWSIM_ATTR_REG_CUSTOM_REG]);
- if (idx >= ARRAY_SIZE(hwsim_world_regdom_custom)) {
- kfree(hwname);
+ if (idx >= ARRAY_SIZE(hwsim_world_regdom_custom))
return -EINVAL;
- }
idx = array_index_nospec(idx,
ARRAY_SIZE(hwsim_world_regdom_custom));
@@ -3358,14 +3400,72 @@ static int hwsim_new_radio_nl(struct sk_buff *msg, struct genl_info *info)
GENL_SET_ERR_MSG(info,"MAC is no valid source addr");
NL_SET_BAD_ATTR(info->extack,
info->attrs[HWSIM_ATTR_PERM_ADDR]);
- kfree(hwname);
return -EINVAL;
}
-
param.perm_addr = nla_data(info->attrs[HWSIM_ATTR_PERM_ADDR]);
}
+ if (info->attrs[HWSIM_ATTR_IFTYPE_SUPPORT]) {
+ param.iftypes =
+ nla_get_u32(info->attrs[HWSIM_ATTR_IFTYPE_SUPPORT]);
+
+ if (param.iftypes & ~HWSIM_IFTYPE_SUPPORT_MASK) {
+ NL_SET_ERR_MSG_ATTR(info->extack,
+ info->attrs[HWSIM_ATTR_IFTYPE_SUPPORT],
+ "cannot support more iftypes than kernel");
+ return -EINVAL;
+ }
+ } else {
+ param.iftypes = HWSIM_IFTYPE_SUPPORT_MASK;
+ }
+
+ /* ensure both flag and iftype support is honored */
+ if (param.p2p_device ||
+ param.iftypes & BIT(NL80211_IFTYPE_P2P_DEVICE)) {
+ param.iftypes |= BIT(NL80211_IFTYPE_P2P_DEVICE);
+ param.p2p_device = true;
+ }
+
+ if (info->attrs[HWSIM_ATTR_CIPHER_SUPPORT]) {
+ u32 len = nla_len(info->attrs[HWSIM_ATTR_CIPHER_SUPPORT]);
+
+ param.ciphers =
+ nla_data(info->attrs[HWSIM_ATTR_CIPHER_SUPPORT]);
+
+ if (len % sizeof(u32)) {
+ NL_SET_ERR_MSG_ATTR(info->extack,
+ info->attrs[HWSIM_ATTR_CIPHER_SUPPORT],
+ "bad cipher list length");
+ return -EINVAL;
+ }
+
+ param.n_ciphers = len / sizeof(u32);
+
+ if (param.n_ciphers > ARRAY_SIZE(hwsim_ciphers)) {
+ NL_SET_ERR_MSG_ATTR(info->extack,
+ info->attrs[HWSIM_ATTR_CIPHER_SUPPORT],
+ "too many ciphers specified");
+ return -EINVAL;
+ }
+
+ if (!hwsim_known_ciphers(param.ciphers, param.n_ciphers)) {
+ NL_SET_ERR_MSG_ATTR(info->extack,
+ info->attrs[HWSIM_ATTR_CIPHER_SUPPORT],
+ "unsupported ciphers specified");
+ return -EINVAL;
+ }
+ }
+
+ if (info->attrs[HWSIM_ATTR_RADIO_NAME]) {
+ hwname = kasprintf(GFP_KERNEL, "%.*s",
+ nla_len(info->attrs[HWSIM_ATTR_RADIO_NAME]),
+ (char *)nla_data(info->attrs[HWSIM_ATTR_RADIO_NAME]));
+ if (!hwname)
+ return -ENOMEM;
+ param.hwname = hwname;
+ }
+
ret = mac80211_hwsim_new_radio(info, &param);
kfree(hwname);
return ret;
@@ -3785,6 +3885,7 @@ static int __init init_mac80211_hwsim(void)
param.p2p_device = support_p2p_device;
param.use_chanctx = channels > 1;
+ param.iftypes = HWSIM_IFTYPE_SUPPORT_MASK;
err = mac80211_hwsim_new_radio(NULL, &param);
if (err < 0)
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.