nl80211: support the MAC80211_HWSIM netlink protocol family

The mac80211_hwsim module exposes a custom generic netlink family for
managing simulated phys and userspace data frame transmission.

Since hwsim functionality is closely related to nl80211 and useful to
e.g. manage simulated wireless testbeds, I decided to include support
directly into the nl80211 module.

Example calls for creating and destroying hwsim wiphys:

    nl80211.request(nl80211.const.HWSIM_CMD_NEW_RADIO, 0, {
        perm_addr: "02:11:22:33:44:55",
        support_p2p_device: true
    });

    nl80211.request(nl80211.const.HWSIM_CMD_DEL_RADIO, 0, {
        radio_name: "phy2"
    });

Signed-off-by: Jo-Philipp Wich <jo@mein.io>

1 files changed, 83 insertions, 0 deletions

diff --git a/include/linux/mac80211_hwsim.h b/include/linux/mac80211_hwsim.h
new file mode 100644
index 0000000..0f21885
--- /dev/null
+++ b/include/linux/mac80211_hwsim.h
@@ -0,0 +1,83 @@
+/* Upstream source:
+ * https://github.com/torvalds/linux/blob/master/drivers/net/wireless/virtual/mac80211_hwsim.h
+ */
+
+#ifndef __LINUX_MAC80211_HWSIM_H
+#define __LINUX_MAC80211_HWSIM_H
+
+#include <stdint.h>
+#include <linux/nl80211.h>
+
+enum hwsim_commands {
+	HWSIM_CMD_OFFSET = NL80211_CMD_MAX,
+	HWSIM_CMD_REGISTER,
+	HWSIM_CMD_FRAME,
+	HWSIM_CMD_TX_INFO_FRAME,
+	HWSIM_CMD_NEW_RADIO,
+	HWSIM_CMD_DEL_RADIO,
+	HWSIM_CMD_GET_RADIO,
+	HWSIM_CMD_ADD_MAC_ADDR,
+	HWSIM_CMD_DEL_MAC_ADDR,
+	HWSIM_CMD_START_PMSR,
+	HWSIM_CMD_ABORT_PMSR,
+	HWSIM_CMD_REPORT_PMSR,
+};
+
+enum hwsim_attrs {
+	HWSIM_ATTR_UNSPEC,
+	HWSIM_ATTR_ADDR_RECEIVER,
+	HWSIM_ATTR_ADDR_TRANSMITTER,
+	HWSIM_ATTR_FRAME,
+	HWSIM_ATTR_FLAGS,
+	HWSIM_ATTR_RX_RATE,
+	HWSIM_ATTR_SIGNAL,
+	HWSIM_ATTR_TX_INFO,
+	HWSIM_ATTR_COOKIE,
+	HWSIM_ATTR_CHANNELS,
+	HWSIM_ATTR_RADIO_ID,
+	HWSIM_ATTR_REG_HINT_ALPHA2,
+	HWSIM_ATTR_REG_CUSTOM_REG,
+	HWSIM_ATTR_REG_STRICT_REG,
+	HWSIM_ATTR_SUPPORT_P2P_DEVICE,
+	HWSIM_ATTR_USE_CHANCTX,
+	HWSIM_ATTR_DESTROY_RADIO_ON_CLOSE,
+	HWSIM_ATTR_RADIO_NAME,
+	HWSIM_ATTR_NO_VIF,
+	HWSIM_ATTR_FREQ,
+	HWSIM_ATTR_PAD,
+	HWSIM_ATTR_TX_INFO_FLAGS,
+	HWSIM_ATTR_PERM_ADDR,
+	HWSIM_ATTR_IFTYPE_SUPPORT,
+	HWSIM_ATTR_CIPHER_SUPPORT,
+	HWSIM_ATTR_MLO_SUPPORT,
+	HWSIM_ATTR_PMSR_SUPPORT,
+	HWSIM_ATTR_PMSR_REQUEST,
+	HWSIM_ATTR_PMSR_RESULT,
+};
+
+enum hwsim_rate_info_attributes {
+	HWSIM_RATE_INFO_ATTR_UNSPEC,
+	HWSIM_RATE_INFO_ATTR_FLAGS,
+	HWSIM_RATE_INFO_ATTR_MCS,
+	HWSIM_RATE_INFO_ATTR_LEGACY,
+	HWSIM_RATE_INFO_ATTR_NSS,
+	HWSIM_RATE_INFO_ATTR_BW,
+	HWSIM_RATE_INFO_ATTR_HE_GI,
+	HWSIM_RATE_INFO_ATTR_HE_DCM,
+	HWSIM_RATE_INFO_ATTR_HE_RU_ALLOC,
+	HWSIM_RATE_INFO_ATTR_N_BOUNDED_CH,
+	HWSIM_RATE_INFO_ATTR_EHT_GI,
+	HWSIM_RATE_INFO_ATTR_EHT_RU_ALLOC,
+};
+
+struct hwsim_tx_rate {
+	int8_t idx;
+	uint8_t count;
+} __attribute__((packed));
+
+struct hwsim_tx_rate_flag {
+	int8_t idx;
+	uint16_t flags;
+} __attribute__((packed));
+
+#endif /* __LINUX_MAC80211_HWSIM_H */