qcacld-3.0: Add a sysfs replacement for modify_acl

As part of WEXT replacement, replace modify_acl with a sysfs file.
file path: /sys/class/net/wlanxx/modify_acl
example: echo 0x00 0x11 0x22 0x33 0x44 0x55 0 0 > modify_acl

Change-Id: I2022a50be84fa21a437aed9ecfdbe4d4bba613df
CRs-Fixed: 2682881

Kbuild

@@ -273,6 +273,7 @@ ifeq ($(CONFIG_FEATURE_UNIT_TEST_SUSPEND), y)
 HDD_OBJS += $(HDD_SRC_DIR)/wlan_hdd_sysfs_suspend_resume.o
 endif
 HDD_OBJS += $(HDD_SRC_DIR)/wlan_hdd_sysfs_unit_test.o
+HDD_OBJS += $(HDD_SRC_DIR)/wlan_hdd_sysfs_modify_acl.o
 endif
 
 ifeq ($(CONFIG_QCACLD_FEATURE_FW_STATE), y)

core/hdd/src/wlan_hdd_sysfs.c

@@ -42,6 +42,7 @@
 #include "wlan_hdd_sysfs_crash_inject.h"
 #include "wlan_hdd_sysfs_suspend_resume.h"
 #include "wlan_hdd_sysfs_unit_test.h"
+#include "wlan_hdd_sysfs_modify_acl.h"
 
 #define MAX_PSOC_ID_SIZE 10
 
@@ -638,11 +639,13 @@ hdd_sysfs_create_sap_adapter_root_obj(struct hdd_adapter *adapter)
 	hdd_sysfs_suspend_create(adapter);
 	hdd_sysfs_resume_create(adapter);
 	hdd_sysfs_unit_test_target_create(adapter);
+	hdd_sysfs_modify_acl_create(adapter);
 }
 
 static void
 hdd_sysfs_destroy_sap_adapter_root_obj(struct hdd_adapter *adapter)
 {
+	hdd_sysfs_modify_acl_destroy(adapter);
 	hdd_sysfs_unit_test_target_destroy(adapter);
 	hdd_sysfs_resume_destroy(adapter);
 	hdd_sysfs_suspend_destroy(adapter);

core/hdd/src/wlan_hdd_sysfs_modify_acl.c

@@ -0,0 +1,148 @@
+/*
+ * Copyright (c) 2011-2020, The Linux Foundation. All rights reserved.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/**
+ * DOC: wlan_hdd_sysfs_modify_acl.c
+ *
+ * implementation for creating sysfs file modify_acl
+ */
+
+#include <wlan_hdd_includes.h>
+#include "osif_vdev_sync.h"
+#include "wlan_hdd_sysfs.h"
+#include "wlan_hdd_sysfs_modify_acl.h"
+
+#define MAX_USER_COMMAND_SIZE_MODIFY_ACL 64
+
+static ssize_t __hdd_sysfs_modify_acl_store(
+		struct net_device *net_dev,
+		const char *buf, size_t count)
+{
+	struct hdd_adapter *adapter = WLAN_HDD_GET_PRIV_PTR(net_dev);
+	struct hdd_context *hdd_ctx;
+	char buf_local[MAX_USER_COMMAND_SIZE_MODIFY_ACL + 1];
+	char *sptr, *token;
+	uint8_t peer_mac[QDF_MAC_ADDR_SIZE];
+	eSapACLType list_type;
+	eSapACLCmdType cmd_type;
+	int ret, i;
+	QDF_STATUS qdf_status;
+
+	if (hdd_validate_adapter(adapter)) {
+		hdd_err_rl("adapter validate fail");
+		return -EINVAL;
+	}
+
+	hdd_ctx = WLAN_HDD_GET_CTX(adapter);
+	ret = wlan_hdd_validate_context(hdd_ctx);
+	if (ret != 0)
+		return ret;
+
+	if (!wlan_hdd_validate_modules_state(hdd_ctx))
+		return -EINVAL;
+
+	if (adapter->device_mode != QDF_SAP_MODE) {
+		hdd_err_rl("Command only allowed in sap mode");
+		return -EINVAL;
+	}
+
+	ret = hdd_sysfs_validate_and_copy_buf(buf_local, sizeof(buf_local),
+					      buf, count);
+	if (ret) {
+		hdd_err_rl("invalid input");
+		return ret;
+	}
+
+	hdd_debug("modify_acl: count %zu buf_local:(%s) net_devname %s",
+		  count, buf_local, net_dev->name);
+
+	sptr = buf_local;
+	for (i = 0; i < QDF_MAC_ADDR_SIZE; i++) {
+		token = strsep(&sptr, " ");
+		if (!token)
+			return -EINVAL;
+		if (kstrtou8(token, 0, &peer_mac[i]))
+			return -EINVAL;
+	}
+
+	/* Get list_type */
+	token = strsep(&sptr, " ");
+	if (!token)
+		return -EINVAL;
+	if (kstrtou32(token, 0, &list_type))
+		return -EINVAL;
+
+	/* Get cmd_type */
+	token = strsep(&sptr, " ");
+	if (!token)
+		return -EINVAL;
+	if (kstrtou32(token, 0, &cmd_type))
+		return -EINVAL;
+
+	hdd_debug("Modify ACL mac:" QDF_MAC_ADDR_STR " type: %d cmd: %d",
+		  QDF_MAC_ADDR_ARRAY(peer_mac), list_type, cmd_type);
+
+	qdf_status = wlansap_modify_acl(
+		WLAN_HDD_GET_SAP_CTX_PTR(adapter),
+		peer_mac, list_type, cmd_type);
+	if (!QDF_IS_STATUS_SUCCESS(qdf_status)) {
+		hdd_err("Modify ACL failed");
+		return -EIO;
+	}
+
+	return count;
+}
+
+static ssize_t hdd_sysfs_modify_acl_store(struct device *dev,
+					  struct device_attribute *attr,
+					  char const *buf, size_t count)
+{
+	struct net_device *net_dev = container_of(dev, struct net_device, dev);
+	struct osif_vdev_sync *vdev_sync;
+	ssize_t errno_size;
+
+	errno_size = osif_vdev_sync_op_start(net_dev, &vdev_sync);
+	if (errno_size)
+		return errno_size;
+
+	errno_size = __hdd_sysfs_modify_acl_store(
+				net_dev, buf, count);
+	if (errno_size < 0)
+		hdd_err_rl("errno_size %zd", errno_size);
+
+	osif_vdev_sync_op_stop(vdev_sync);
+
+	return errno_size;
+}
+
+static DEVICE_ATTR(modify_acl, 0220,
+		   NULL, hdd_sysfs_modify_acl_store);
+
+int hdd_sysfs_modify_acl_create(struct hdd_adapter *adapter)
+{
+	int error;
+
+	error = device_create_file(&adapter->dev->dev, &dev_attr_modify_acl);
+	if (error)
+		hdd_err("could not create modify_acl sysfs file");
+
+	return error;
+}
+
+void hdd_sysfs_modify_acl_destroy(struct hdd_adapter *adapter)
+{
+	device_remove_file(&adapter->dev->dev, &dev_attr_modify_acl);
+}

core/hdd/src/wlan_hdd_sysfs_modify_acl.h

@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) 2011-2020, The Linux Foundation. All rights reserved.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/**
+ * DOC: wlan_hdd_sysfs_modify_acl.h
+ *
+ * implementation for creating sysfs file modify_acl
+ */
+
+#ifndef _WLAN_HDD_SYSFS_MODIFY_ACL_H
+#define _WLAN_HDD_SYSFS_MODIFY_ACL_H
+
+#if defined(WLAN_SYSFS)
+/**
+ * hdd_sysfs_modify_acl_create() - API to create modify_acl
+ * @adapter: hdd adapter
+ *
+ * this file is created for sap adapter.
+ * file path: /sys/class/net/wlan_xx/modify_acl
+ *                (wlan_xx is adapter name)
+ * usage:
+ *      echo <6 octet mac addr> <list type> <cmd type> > modify_acl
+ *      eg:  echo 0x00 0x11 0x22 0x33 0x44 0x55 0 0 >modify_acls
+ * Return: 0 on success and errno on failure
+ */
+int hdd_sysfs_modify_acl_create(struct hdd_adapter *adapter);
+
+/**
+ * hdd_sysfs_modify_acl_destroy() -
+ *   API to destroy modify_acl sys file
+ * @adapter: pointer to adapter
+ *
+ * Return: none
+ */
+void hdd_sysfs_modify_acl_destroy(struct hdd_adapter *adapter);
+#else
+static inline int
+hdd_sysfs_modify_acl_create(struct hdd_adapter *adapter)
+{
+	return 0;
+}
+
+static inline void
+hdd_sysfs_modify_acl_destroy(struct hdd_adapter *adapter)
+{
+}
+#endif
+#endif /* #ifndef _WLAN_HDD_SYSFS_MODIFY_ACL_H */