1*5113495bSYour Name /*
2*5113495bSYour Name * Copyright (c) 2017-2020 The Linux Foundation. All rights reserved.
3*5113495bSYour Name * Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights reserved.
4*5113495bSYour Name *
5*5113495bSYour Name * Permission to use, copy, modify, and/or distribute this software for
6*5113495bSYour Name * any purpose with or without fee is hereby granted, provided that the
7*5113495bSYour Name * above copyright notice and this permission notice appear in all
8*5113495bSYour Name * copies.
9*5113495bSYour Name *
10*5113495bSYour Name * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
11*5113495bSYour Name * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
12*5113495bSYour Name * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
13*5113495bSYour Name * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
14*5113495bSYour Name * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
15*5113495bSYour Name * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
16*5113495bSYour Name * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
17*5113495bSYour Name * PERFORMANCE OF THIS SOFTWARE.
18*5113495bSYour Name */
19*5113495bSYour Name
20*5113495bSYour Name /**
21*5113495bSYour Name * DOC: Implements public API for PMO GTK offload feature to interact
22*5113495bSYour Name * with target/wmi.
23*5113495bSYour Name */
24*5113495bSYour Name
25*5113495bSYour Name #include "wlan_pmo_tgt_api.h"
26*5113495bSYour Name #include "wlan_pmo_gtk_public_struct.h"
27*5113495bSYour Name #include "wlan_pmo_obj_mgmt_public_struct.h"
28*5113495bSYour Name #include "wlan_pmo_main.h"
29*5113495bSYour Name
pmo_tgt_send_gtk_offload_req(struct wlan_objmgr_vdev * vdev,struct pmo_gtk_req * gtk_req)30*5113495bSYour Name QDF_STATUS pmo_tgt_send_gtk_offload_req(struct wlan_objmgr_vdev *vdev,
31*5113495bSYour Name struct pmo_gtk_req *gtk_req)
32*5113495bSYour Name {
33*5113495bSYour Name struct pmo_gtk_req *op_gtk_req = NULL;
34*5113495bSYour Name QDF_STATUS status;
35*5113495bSYour Name struct wlan_objmgr_psoc *psoc;
36*5113495bSYour Name struct pmo_vdev_priv_obj *vdev_ctx;
37*5113495bSYour Name struct wlan_pmo_tx_ops pmo_tx_ops;
38*5113495bSYour Name
39*5113495bSYour Name pmo_enter();
40*5113495bSYour Name psoc = wlan_vdev_get_psoc(vdev);
41*5113495bSYour Name if (!psoc) {
42*5113495bSYour Name pmo_err("Failed to find psoc from from vdev:%pK",
43*5113495bSYour Name vdev);
44*5113495bSYour Name status = QDF_STATUS_E_INVAL;
45*5113495bSYour Name goto out;
46*5113495bSYour Name }
47*5113495bSYour Name
48*5113495bSYour Name vdev_ctx = pmo_vdev_get_priv(vdev);
49*5113495bSYour Name
50*5113495bSYour Name pmo_tx_ops = GET_PMO_TX_OPS_FROM_PSOC(psoc);
51*5113495bSYour Name if (!pmo_tx_ops.send_gtk_offload_req) {
52*5113495bSYour Name pmo_err("send_gtk_offload_req is null");
53*5113495bSYour Name status = QDF_STATUS_E_NULL_VALUE;
54*5113495bSYour Name goto out;
55*5113495bSYour Name }
56*5113495bSYour Name
57*5113495bSYour Name op_gtk_req = qdf_mem_malloc(sizeof(*op_gtk_req));
58*5113495bSYour Name if (!op_gtk_req) {
59*5113495bSYour Name status = QDF_STATUS_E_NOMEM;
60*5113495bSYour Name goto out;
61*5113495bSYour Name }
62*5113495bSYour Name
63*5113495bSYour Name if (gtk_req->flags == PMO_GTK_OFFLOAD_ENABLE) {
64*5113495bSYour Name qdf_atomic_set(&vdev_ctx->gtk_err_enable, true);
65*5113495bSYour Name qdf_mem_copy(op_gtk_req->kck, gtk_req->kck,
66*5113495bSYour Name gtk_req->kck_len);
67*5113495bSYour Name op_gtk_req->kck_len = gtk_req->kck_len;
68*5113495bSYour Name qdf_mem_copy(op_gtk_req->kek, gtk_req->kek,
69*5113495bSYour Name PMO_KEK_LEN);
70*5113495bSYour Name op_gtk_req->kek_len = gtk_req->kek_len;
71*5113495bSYour Name qdf_mem_copy(&op_gtk_req->replay_counter,
72*5113495bSYour Name >k_req->replay_counter, PMO_REPLAY_COUNTER_LEN);
73*5113495bSYour Name } else {
74*5113495bSYour Name qdf_atomic_set(&vdev_ctx->gtk_err_enable, false);
75*5113495bSYour Name }
76*5113495bSYour Name
77*5113495bSYour Name pmo_debug("replay counter %llu", op_gtk_req->replay_counter);
78*5113495bSYour Name op_gtk_req->flags = gtk_req->flags;
79*5113495bSYour Name status = pmo_tx_ops.send_gtk_offload_req(vdev, op_gtk_req);
80*5113495bSYour Name if (status != QDF_STATUS_SUCCESS)
81*5113495bSYour Name pmo_err("Failed to send gtk offload req event");
82*5113495bSYour Name out:
83*5113495bSYour Name if (op_gtk_req)
84*5113495bSYour Name qdf_mem_free(op_gtk_req);
85*5113495bSYour Name pmo_exit();
86*5113495bSYour Name
87*5113495bSYour Name return status;
88*5113495bSYour Name }
89*5113495bSYour Name
pmo_tgt_get_gtk_rsp(struct wlan_objmgr_vdev * vdev)90*5113495bSYour Name QDF_STATUS pmo_tgt_get_gtk_rsp(struct wlan_objmgr_vdev *vdev)
91*5113495bSYour Name {
92*5113495bSYour Name
93*5113495bSYour Name struct wlan_objmgr_psoc *psoc;
94*5113495bSYour Name QDF_STATUS status;
95*5113495bSYour Name struct wlan_pmo_tx_ops pmo_tx_ops;
96*5113495bSYour Name
97*5113495bSYour Name pmo_enter();
98*5113495bSYour Name psoc = wlan_vdev_get_psoc(vdev);
99*5113495bSYour Name if (!psoc) {
100*5113495bSYour Name pmo_err("Failed to find psoc from from vdev:%pK",
101*5113495bSYour Name vdev);
102*5113495bSYour Name status = QDF_STATUS_E_NULL_VALUE;
103*5113495bSYour Name goto out;
104*5113495bSYour Name }
105*5113495bSYour Name
106*5113495bSYour Name pmo_tx_ops = GET_PMO_TX_OPS_FROM_PSOC(psoc);
107*5113495bSYour Name if (!pmo_tx_ops.send_get_gtk_rsp_cmd) {
108*5113495bSYour Name pmo_err("send_get_gtk_rsp_cmd is null");
109*5113495bSYour Name status = QDF_STATUS_E_NULL_VALUE;
110*5113495bSYour Name goto out;
111*5113495bSYour Name }
112*5113495bSYour Name status = pmo_tx_ops.send_get_gtk_rsp_cmd(vdev);
113*5113495bSYour Name if (status != QDF_STATUS_SUCCESS)
114*5113495bSYour Name pmo_err("Failed to send_get_gtk_rsp_cmd event");
115*5113495bSYour Name out:
116*5113495bSYour Name pmo_exit();
117*5113495bSYour Name
118*5113495bSYour Name return status;
119*5113495bSYour Name }
120*5113495bSYour Name
pmo_tgt_gtk_rsp_evt(struct wlan_objmgr_psoc * psoc,struct pmo_gtk_rsp_params * rsp_param)121*5113495bSYour Name QDF_STATUS pmo_tgt_gtk_rsp_evt(struct wlan_objmgr_psoc *psoc,
122*5113495bSYour Name struct pmo_gtk_rsp_params *rsp_param)
123*5113495bSYour Name {
124*5113495bSYour Name QDF_STATUS status;
125*5113495bSYour Name struct wlan_objmgr_vdev *vdev;
126*5113495bSYour Name struct pmo_vdev_priv_obj *vdev_ctx;
127*5113495bSYour Name
128*5113495bSYour Name pmo_enter();
129*5113495bSYour Name if (!rsp_param) {
130*5113495bSYour Name pmo_err("gtk rsp param is null");
131*5113495bSYour Name status = QDF_STATUS_E_NULL_VALUE;
132*5113495bSYour Name goto out;
133*5113495bSYour Name }
134*5113495bSYour Name
135*5113495bSYour Name vdev = wlan_objmgr_get_vdev_by_id_from_psoc(psoc, rsp_param->vdev_id,
136*5113495bSYour Name WLAN_PMO_ID);
137*5113495bSYour Name if (!vdev) {
138*5113495bSYour Name pmo_err("vdev is null vdev_id:%d psoc:%pK",
139*5113495bSYour Name rsp_param->vdev_id, psoc);
140*5113495bSYour Name status = QDF_STATUS_E_NULL_VALUE;
141*5113495bSYour Name goto out;
142*5113495bSYour Name }
143*5113495bSYour Name
144*5113495bSYour Name vdev_ctx = pmo_vdev_get_priv(vdev);
145*5113495bSYour Name
146*5113495bSYour Name status = pmo_get_vdev_bss_peer_mac_addr(vdev, &rsp_param->bssid);
147*5113495bSYour Name if (status != QDF_STATUS_SUCCESS) {
148*5113495bSYour Name pmo_err("cannot find peer mac address");
149*5113495bSYour Name goto dec_ref;
150*5113495bSYour Name }
151*5113495bSYour Name
152*5113495bSYour Name /* update cached replay counter */
153*5113495bSYour Name qdf_spin_lock_bh(&vdev_ctx->pmo_vdev_lock);
154*5113495bSYour Name vdev_ctx->vdev_gtk_req.replay_counter = rsp_param->replay_counter;
155*5113495bSYour Name qdf_spin_unlock_bh(&vdev_ctx->pmo_vdev_lock);
156*5113495bSYour Name
157*5113495bSYour Name if (vdev_ctx->vdev_gtk_rsp_req.callback) {
158*5113495bSYour Name pmo_debug("callback:%pK context:%pK psoc:%pK vdev_id:%d",
159*5113495bSYour Name vdev_ctx->vdev_gtk_rsp_req.callback,
160*5113495bSYour Name vdev_ctx->vdev_gtk_rsp_req.callback_context,
161*5113495bSYour Name psoc, rsp_param->vdev_id);
162*5113495bSYour Name vdev_ctx->vdev_gtk_rsp_req.callback(
163*5113495bSYour Name vdev_ctx->vdev_gtk_rsp_req.callback_context,
164*5113495bSYour Name rsp_param);
165*5113495bSYour Name } else {
166*5113495bSYour Name pmo_err("gtk rsp callback is null for vdev_id:%d psoc %pK",
167*5113495bSYour Name rsp_param->vdev_id,
168*5113495bSYour Name psoc);
169*5113495bSYour Name }
170*5113495bSYour Name
171*5113495bSYour Name dec_ref:
172*5113495bSYour Name wlan_objmgr_vdev_release_ref(vdev, WLAN_PMO_ID);
173*5113495bSYour Name out:
174*5113495bSYour Name pmo_exit();
175*5113495bSYour Name
176*5113495bSYour Name return status;
177*5113495bSYour Name }
178*5113495bSYour Name
179