| /* |
| * 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: Implements public API for PMO GTK offload feature to interact |
| * with target/wmi. |
| */ |
| |
| #include "wlan_pmo_tgt_api.h" |
| #include "wlan_pmo_gtk_public_struct.h" |
| #include "wlan_pmo_obj_mgmt_public_struct.h" |
| #include "wlan_pmo_main.h" |
| |
| QDF_STATUS pmo_tgt_send_gtk_offload_req(struct wlan_objmgr_vdev *vdev, |
| struct pmo_gtk_req *gtk_req) |
| { |
| struct pmo_gtk_req *op_gtk_req = NULL; |
| QDF_STATUS status; |
| struct wlan_objmgr_psoc *psoc; |
| struct pmo_vdev_priv_obj *vdev_ctx; |
| struct wlan_pmo_tx_ops pmo_tx_ops; |
| |
| PMO_ENTER(); |
| psoc = wlan_vdev_get_psoc(vdev); |
| if (!psoc) { |
| pmo_err("Failed to find psoc from from vdev:%pK", |
| vdev); |
| status = QDF_STATUS_E_INVAL; |
| goto out; |
| } |
| |
| vdev_ctx = pmo_vdev_get_priv(vdev); |
| |
| pmo_tx_ops = GET_PMO_TX_OPS_FROM_PSOC(psoc); |
| if (!pmo_tx_ops.send_gtk_offload_req) { |
| pmo_err("send_gtk_offload_req is null"); |
| status = QDF_STATUS_E_NULL_VALUE; |
| goto out; |
| } |
| |
| op_gtk_req = qdf_mem_malloc(sizeof(*op_gtk_req)); |
| if (!op_gtk_req) { |
| pmo_err("cannot allocate op_gtk_req "); |
| status = QDF_STATUS_E_NOMEM; |
| goto out; |
| } |
| |
| if (gtk_req->flags == PMO_GTK_OFFLOAD_ENABLE) { |
| qdf_atomic_set(&vdev_ctx->gtk_err_enable, true); |
| qdf_mem_copy(op_gtk_req->kck, gtk_req->kck, |
| PMO_KCK_LEN); |
| qdf_mem_copy(op_gtk_req->kek, gtk_req->kek, |
| PMO_KEK_LEN); |
| qdf_mem_copy(&op_gtk_req->replay_counter, |
| >k_req->replay_counter, PMO_REPLAY_COUNTER_LEN); |
| } else { |
| qdf_atomic_set(&vdev_ctx->gtk_err_enable, false); |
| } |
| |
| pmo_debug("replay counter %llu", op_gtk_req->replay_counter); |
| op_gtk_req->flags = gtk_req->flags; |
| status = pmo_tx_ops.send_gtk_offload_req(vdev, op_gtk_req); |
| if (status != QDF_STATUS_SUCCESS) |
| pmo_err("Failed to send gtk offload req event"); |
| out: |
| if (op_gtk_req) |
| qdf_mem_free(op_gtk_req); |
| PMO_EXIT(); |
| |
| return status; |
| } |
| |
| QDF_STATUS pmo_tgt_get_gtk_rsp(struct wlan_objmgr_vdev *vdev) |
| { |
| |
| struct wlan_objmgr_psoc *psoc; |
| QDF_STATUS status; |
| struct wlan_pmo_tx_ops pmo_tx_ops; |
| |
| PMO_ENTER(); |
| psoc = wlan_vdev_get_psoc(vdev); |
| if (!psoc) { |
| pmo_err("Failed to find psoc from from vdev:%pK", |
| vdev); |
| status = QDF_STATUS_E_NULL_VALUE; |
| goto out; |
| } |
| |
| pmo_tx_ops = GET_PMO_TX_OPS_FROM_PSOC(psoc); |
| if (!pmo_tx_ops.send_get_gtk_rsp_cmd) { |
| pmo_err("send_get_gtk_rsp_cmd is null"); |
| status = QDF_STATUS_E_NULL_VALUE; |
| goto out; |
| } |
| status = pmo_tx_ops.send_get_gtk_rsp_cmd(vdev); |
| if (status != QDF_STATUS_SUCCESS) |
| pmo_err("Failed to send_get_gtk_rsp_cmd event"); |
| out: |
| PMO_EXIT(); |
| |
| return status; |
| } |
| |
| QDF_STATUS pmo_tgt_gtk_rsp_evt(struct wlan_objmgr_psoc *psoc, |
| struct pmo_gtk_rsp_params *rsp_param) |
| { |
| QDF_STATUS status; |
| struct wlan_objmgr_vdev *vdev; |
| struct pmo_vdev_priv_obj *vdev_ctx; |
| |
| PMO_ENTER(); |
| if (!rsp_param) { |
| pmo_err("gtk rsp param is null"); |
| status = QDF_STATUS_E_NULL_VALUE; |
| goto out; |
| } |
| |
| vdev = pmo_psoc_get_vdev(psoc, rsp_param->vdev_id); |
| if (!vdev) { |
| pmo_err("vdev is null vdev_id:%d psoc:%pK", |
| rsp_param->vdev_id, psoc); |
| status = QDF_STATUS_E_NULL_VALUE; |
| goto out; |
| } |
| |
| status = pmo_vdev_get_ref(vdev); |
| if (QDF_IS_STATUS_ERROR(status)) |
| goto out; |
| |
| vdev_ctx = pmo_vdev_get_priv(vdev); |
| |
| status = pmo_get_vdev_bss_peer_mac_addr(vdev, &rsp_param->bssid); |
| if (status != QDF_STATUS_SUCCESS) { |
| pmo_err("cannot find peer mac address"); |
| goto dec_ref; |
| } |
| |
| /* update cached replay counter */ |
| qdf_spin_lock_bh(&vdev_ctx->pmo_vdev_lock); |
| vdev_ctx->vdev_gtk_req.replay_counter = rsp_param->replay_counter; |
| qdf_spin_unlock_bh(&vdev_ctx->pmo_vdev_lock); |
| |
| if (vdev_ctx->vdev_gtk_rsp_req.callback) { |
| pmo_debug("callback:%pK context:%pK psoc:%pK vdev_id:%d", |
| vdev_ctx->vdev_gtk_rsp_req.callback, |
| vdev_ctx->vdev_gtk_rsp_req.callback_context, |
| psoc, rsp_param->vdev_id); |
| vdev_ctx->vdev_gtk_rsp_req.callback( |
| vdev_ctx->vdev_gtk_rsp_req.callback_context, |
| rsp_param); |
| } else { |
| pmo_err("gtk rsp callback is null for vdev_id:%d psoc %pK", |
| rsp_param->vdev_id, |
| psoc); |
| } |
| |
| dec_ref: |
| pmo_vdev_put_ref(vdev); |
| out: |
| PMO_EXIT(); |
| |
| return status; |
| } |
| |