| /* |
| * Copyright (c) 2017 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_packet_filter.c |
| * |
| * WLAN Host Device Driver implementation |
| * |
| */ |
| |
| /* Include Files */ |
| #include "wlan_hdd_packet_filter_api.h" |
| #include "wlan_hdd_packet_filter_rules.h" |
| |
| int hdd_enable_default_pkt_filters(struct hdd_adapter *adapter) |
| { |
| struct hdd_context *hdd_ctx; |
| uint8_t filters = 0, i = 0, filter_id = 1; |
| |
| hdd_ctx = WLAN_HDD_GET_CTX(adapter); |
| if (hdd_ctx == NULL) { |
| hdd_err("HDD context is Null!!!"); |
| return -EINVAL; |
| } |
| if (hdd_ctx->user_configured_pkt_filter_rules) { |
| hdd_info("user has defined pkt filter run hence skipping default packet filter rule"); |
| return 0; |
| } |
| |
| filters = hdd_ctx->config->packet_filters_bitmap; |
| |
| while (filters != 0) { |
| if (filters & 0x1) { |
| hdd_err("setting filter[%d], of id = %d", |
| i+1, filter_id); |
| packet_filter_default_rules[i].filter_id = filter_id; |
| wlan_hdd_set_filter(hdd_ctx, |
| &packet_filter_default_rules[i], |
| adapter->sessionId); |
| filter_id++; |
| } |
| filters = filters >> 1; |
| i++; |
| } |
| |
| return 0; |
| } |
| |
| int hdd_disable_default_pkt_filters(struct hdd_adapter *adapter) |
| { |
| struct hdd_context *hdd_ctx; |
| uint8_t filters = 0, i = 0, filter_id = 1; |
| |
| struct pkt_filter_cfg packet_filter_default_rules; |
| |
| hdd_ctx = WLAN_HDD_GET_CTX(adapter); |
| if (hdd_ctx == NULL) { |
| hdd_err("HDD context is Null!!!"); |
| return -EINVAL; |
| } |
| |
| if (hdd_ctx->user_configured_pkt_filter_rules) { |
| hdd_info("user has defined pkt filter run hence skipping default packet filter rule"); |
| return 0; |
| } |
| |
| filters = hdd_ctx->config->packet_filters_bitmap; |
| |
| while (filters != 0) { |
| if (filters & 0x1) { |
| hdd_err("Clearing filter[%d], of id = %d", |
| i+1, filter_id); |
| packet_filter_default_rules.filter_action = |
| HDD_RCV_FILTER_CLEAR; |
| packet_filter_default_rules.filter_id = filter_id; |
| wlan_hdd_set_filter(hdd_ctx, |
| &packet_filter_default_rules, |
| adapter->sessionId); |
| filter_id++; |
| } |
| filters = filters >> 1; |
| i++; |
| } |
| |
| return 0; |
| } |