xref: /wlan-driver/qcacld-3.0/core/sme/src/csr/csr_cmd_process.c (revision 5113495b16420b49004c444715d2daae2066e7dc)
1 /*
2  * Copyright (c) 2011-2021 The Linux Foundation. All rights reserved.
3  *
4  * Permission to use, copy, modify, and/or distribute this software for
5  * any purpose with or without fee is hereby granted, provided that the
6  * above copyright notice and this permission notice appear in all
7  * copies.
8  *
9  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
10  * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
11  * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
12  * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
13  * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
14  * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
15  * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
16  * PERFORMANCE OF THIS SOFTWARE.
17  */
18 
19 /*
20  * DOC: csr_cmd_process.c
21  *
22  * Implementation for processing various commands.
23  */
24 #include "ani_global.h"
25 #include "csr_inside_api.h"
26 #include "sme_inside.h"
27 #include "mac_trace.h"
28 
29 /**
30  * csr_msg_processor() - To process all csr msg
31  * @mac_ctx: mac context
32  * @msg_buf: message buffer
33  *
34  * This routine will handle all the message for csr to process
35  *
36  * Return: QDF_STATUS
37  */
csr_msg_processor(struct mac_context * mac_ctx,void * msg_buf)38 QDF_STATUS csr_msg_processor(struct mac_context *mac_ctx, void *msg_buf)
39 {
40 	QDF_STATUS status = QDF_STATUS_SUCCESS;
41 	tSirSmeRsp *sme_rsp = (tSirSmeRsp *) msg_buf;
42 	uint8_t vdev_id = sme_rsp->vdev_id;
43 	enum csr_roam_state cur_state;
44 
45 	cur_state = sme_get_current_roam_state(MAC_HANDLE(mac_ctx), vdev_id);
46 	sme_debug("msg %d[0x%04X] recvd in curstate %s & substate %s id(%d)",
47 		sme_rsp->messageType, sme_rsp->messageType,
48 		mac_trace_getcsr_roam_state(cur_state),
49 		mac_trace_getcsr_roam_sub_state(
50 			mac_ctx->roam.curSubState[vdev_id]), vdev_id);
51 
52 	/* Process the message based on the state of the roaming states... */
53 	switch (cur_state) {
54 	case eCSR_ROAMING_STATE_JOINED:
55 		/* are we in joined state */
56 		csr_roam_joined_state_msg_processor(mac_ctx, msg_buf);
57 		break;
58 	case eCSR_ROAMING_STATE_JOINING:
59 		/* are we in roaming states */
60 		csr_roaming_state_msg_processor(mac_ctx, msg_buf);
61 		break;
62 
63 	default:
64 
65 		if (sme_rsp->messageType ==
66 		    eWNI_SME_UPPER_LAYER_ASSOC_CNF) {
67 			tSirSmeAssocIndToUpperLayerCnf *upper_layer_assoc_cnf =
68 				(tSirSmeAssocIndToUpperLayerCnf *)msg_buf;
69 			if (upper_layer_assoc_cnf->ies) {
70 				qdf_mem_free(upper_layer_assoc_cnf->ies);
71 				sme_debug("free ies");
72 			}
73 			break;
74 		}
75 
76 		/*
77 		 * For all other messages, we ignore it
78 		 * To work-around an issue where checking for set/remove
79 		 * key base on connection state is no longer workable
80 		 * due to failure or finding the condition meets both
81 		 * SAP and infra requirement.
82 		 */
83 		if (eWNI_SME_SETCONTEXT_RSP == sme_rsp->messageType ||
84 		    eWNI_SME_DISCONNECT_DONE_IND ==
85 		    sme_rsp->messageType) {
86 			sme_warn("handling msg 0x%X CSR state is %d",
87 				sme_rsp->messageType, cur_state);
88 			csr_roam_check_for_link_status_change(mac_ctx,
89 					sme_rsp);
90 		} else {
91 			sme_err("Message 0x%04X is not handled by CSR state is %d session Id %d",
92 				sme_rsp->messageType, cur_state,
93 				vdev_id);
94 		}
95 		break;
96 	} /* switch */
97 	return status;
98 }
99