The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 1 | /****************************************************************************** |
| 2 | * |
| 3 | * Copyright (C) 1999-2012 Broadcom Corporation |
| 4 | * |
| 5 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 6 | * you may not use this file except in compliance with the License. |
| 7 | * You may obtain a copy of the License at: |
| 8 | * |
| 9 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 10 | * |
| 11 | * Unless required by applicable law or agreed to in writing, software |
| 12 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 14 | * See the License for the specific language governing permissions and |
| 15 | * limitations under the License. |
| 16 | * |
| 17 | ******************************************************************************/ |
| 18 | |
| 19 | /****************************************************************************** |
| 20 | * |
| 21 | * This file contains the L2CAP channel state machine |
| 22 | * |
| 23 | ******************************************************************************/ |
| 24 | |
| 25 | #include <stdlib.h> |
| 26 | #include <string.h> |
| 27 | #include <stdio.h> |
| 28 | |
| 29 | #include "bt_target.h" |
| 30 | #include "gki.h" |
| 31 | #include "hcidefs.h" |
| 32 | #include "hcimsgs.h" |
| 33 | #include "l2cdefs.h" |
| 34 | #include "l2c_int.h" |
| 35 | #include "btm_int.h" |
| 36 | #include "btu.h" |
| 37 | #include "hcimsgs.h" |
| 38 | |
| 39 | /********************************************************************************/ |
| 40 | /* L O C A L F U N C T I O N P R O T O T Y P E S */ |
| 41 | /********************************************************************************/ |
| 42 | static void l2c_csm_closed (tL2C_CCB *p_ccb, UINT16 event, void *p_data); |
| 43 | static void l2c_csm_orig_w4_sec_comp (tL2C_CCB *p_ccb, UINT16 event, void *p_data); |
| 44 | static void l2c_csm_term_w4_sec_comp (tL2C_CCB *p_ccb, UINT16 event, void *p_data); |
| 45 | static void l2c_csm_w4_l2cap_connect_rsp (tL2C_CCB *p_ccb, UINT16 event, void *p_data); |
| 46 | static void l2c_csm_w4_l2ca_connect_rsp (tL2C_CCB *p_ccb, UINT16 event, void *p_data); |
| 47 | static void l2c_csm_config (tL2C_CCB *p_ccb, UINT16 event, void *p_data); |
| 48 | static void l2c_csm_open (tL2C_CCB *p_ccb, UINT16 event, void *p_data); |
| 49 | static void l2c_csm_w4_l2cap_disconnect_rsp (tL2C_CCB *p_ccb, UINT16 event, void *p_data); |
| 50 | static void l2c_csm_w4_l2ca_disconnect_rsp (tL2C_CCB *p_ccb, UINT16 event, void *p_data); |
| 51 | |
| 52 | #if (BT_TRACE_VERBOSE == TRUE) |
| 53 | static char *l2c_csm_get_event_name (UINT16 event); |
| 54 | #endif |
| 55 | |
| 56 | /******************************************************************************* |
| 57 | ** |
| 58 | ** Function l2c_csm_execute |
| 59 | ** |
| 60 | ** Description This function executes the state machine. |
| 61 | ** |
| 62 | ** Returns void |
| 63 | ** |
| 64 | *******************************************************************************/ |
| 65 | void l2c_csm_execute (tL2C_CCB *p_ccb, UINT16 event, void *p_data) |
| 66 | { |
| 67 | switch (p_ccb->chnl_state) |
| 68 | { |
| 69 | case CST_CLOSED: |
| 70 | l2c_csm_closed (p_ccb, event, p_data); |
| 71 | break; |
| 72 | |
| 73 | case CST_ORIG_W4_SEC_COMP: |
| 74 | l2c_csm_orig_w4_sec_comp (p_ccb, event, p_data); |
| 75 | break; |
| 76 | |
| 77 | case CST_TERM_W4_SEC_COMP: |
| 78 | l2c_csm_term_w4_sec_comp (p_ccb, event, p_data); |
| 79 | break; |
| 80 | |
| 81 | case CST_W4_L2CAP_CONNECT_RSP: |
| 82 | l2c_csm_w4_l2cap_connect_rsp (p_ccb, event, p_data); |
| 83 | break; |
| 84 | |
| 85 | case CST_W4_L2CA_CONNECT_RSP: |
| 86 | l2c_csm_w4_l2ca_connect_rsp (p_ccb, event, p_data); |
| 87 | break; |
| 88 | |
| 89 | case CST_CONFIG: |
| 90 | l2c_csm_config (p_ccb, event, p_data); |
| 91 | break; |
| 92 | |
| 93 | case CST_OPEN: |
| 94 | l2c_csm_open (p_ccb, event, p_data); |
| 95 | break; |
| 96 | |
| 97 | case CST_W4_L2CAP_DISCONNECT_RSP: |
| 98 | l2c_csm_w4_l2cap_disconnect_rsp (p_ccb, event, p_data); |
| 99 | break; |
| 100 | |
| 101 | case CST_W4_L2CA_DISCONNECT_RSP: |
| 102 | l2c_csm_w4_l2ca_disconnect_rsp (p_ccb, event, p_data); |
| 103 | break; |
| 104 | |
| 105 | default: |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 106 | L2CAP_TRACE_DEBUG("Unhandled event! event = %d",event); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 107 | break; |
| 108 | } |
| 109 | } |
| 110 | |
| 111 | /******************************************************************************* |
| 112 | ** |
| 113 | ** Function l2c_csm_closed |
| 114 | ** |
| 115 | ** Description This function handles events when the channel is in |
| 116 | ** CLOSED state. This state exists only when the link is |
| 117 | ** being initially established. |
| 118 | ** |
| 119 | ** Returns void |
| 120 | ** |
| 121 | *******************************************************************************/ |
| 122 | static void l2c_csm_closed (tL2C_CCB *p_ccb, UINT16 event, void *p_data) |
| 123 | { |
| 124 | tL2C_CONN_INFO *p_ci = (tL2C_CONN_INFO *)p_data; |
| 125 | UINT16 local_cid = p_ccb->local_cid; |
| 126 | tL2CA_DISCONNECT_IND_CB *disconnect_ind; |
| 127 | tL2CA_CONNECT_CFM_CB *connect_cfm; |
| 128 | |
| 129 | if (p_ccb->p_rcb == NULL) |
| 130 | { |
| 131 | #if (BT_TRACE_VERBOSE == TRUE) |
Sharvil Nanavati | a51c9d9 | 2014-05-04 01:08:21 -0700 | [diff] [blame] | 132 | L2CAP_TRACE_ERROR ("L2CAP - LCID: 0x%04x st: CLOSED evt: %s p_rcb == NULL", p_ccb->local_cid, l2c_csm_get_event_name (event)); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 133 | #else |
Sharvil Nanavati | a51c9d9 | 2014-05-04 01:08:21 -0700 | [diff] [blame] | 134 | L2CAP_TRACE_ERROR ("L2CAP - LCID: 0x%04x st: CLOSED evt: 0x%04x p_rcb == NULL", p_ccb->local_cid, event); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 135 | #endif |
| 136 | return; |
| 137 | } |
| 138 | |
| 139 | #if (L2CAP_UCD_INCLUDED == TRUE) |
| 140 | if ( local_cid == L2CAP_CONNECTIONLESS_CID ) |
| 141 | { |
| 142 | /* check if this event can be processed by UCD */ |
| 143 | if ( l2c_ucd_process_event (p_ccb, event, p_data) ) |
| 144 | { |
| 145 | /* The event is processed by UCD state machine */ |
| 146 | return; |
| 147 | } |
| 148 | } |
| 149 | #endif |
| 150 | |
| 151 | disconnect_ind = p_ccb->p_rcb->api.pL2CA_DisconnectInd_Cb; |
| 152 | connect_cfm = p_ccb->p_rcb->api.pL2CA_ConnectCfm_Cb; |
| 153 | |
| 154 | #if (BT_TRACE_VERBOSE == TRUE) |
Sharvil Nanavati | a51c9d9 | 2014-05-04 01:08:21 -0700 | [diff] [blame] | 155 | L2CAP_TRACE_EVENT ("L2CAP - LCID: 0x%04x st: CLOSED evt: %s", p_ccb->local_cid, l2c_csm_get_event_name (event)); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 156 | #else |
Sharvil Nanavati | a51c9d9 | 2014-05-04 01:08:21 -0700 | [diff] [blame] | 157 | L2CAP_TRACE_EVENT ("L2CAP - st: CLOSED evt: %d", event); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 158 | #endif |
| 159 | |
| 160 | switch (event) |
| 161 | { |
| 162 | case L2CEVT_LP_DISCONNECT_IND: /* Link was disconnected */ |
Sharvil Nanavati | a51c9d9 | 2014-05-04 01:08:21 -0700 | [diff] [blame] | 163 | L2CAP_TRACE_API ("L2CAP - Calling Disconnect_Ind_Cb(), CID: 0x%04x No Conf Needed", p_ccb->local_cid); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 164 | l2cu_release_ccb (p_ccb); |
| 165 | (*disconnect_ind)(local_cid, FALSE); |
| 166 | break; |
| 167 | |
| 168 | case L2CEVT_LP_CONNECT_CFM: /* Link came up */ |
| 169 | p_ccb->chnl_state = CST_ORIG_W4_SEC_COMP; |
| 170 | btm_sec_l2cap_access_req (p_ccb->p_lcb->remote_bd_addr, p_ccb->p_rcb->psm, |
| 171 | p_ccb->p_lcb->handle, TRUE, &l2c_link_sec_comp, p_ccb); |
| 172 | break; |
| 173 | |
| 174 | case L2CEVT_LP_CONNECT_CFM_NEG: /* Link failed */ |
| 175 | /* Disconnect unless ACL collision and upper layer wants to handle it */ |
| 176 | if (p_ci->status != HCI_ERR_CONNECTION_EXISTS |
| 177 | || !btm_acl_notif_conn_collision(p_ccb->p_lcb->remote_bd_addr)) |
| 178 | { |
Sharvil Nanavati | a51c9d9 | 2014-05-04 01:08:21 -0700 | [diff] [blame] | 179 | L2CAP_TRACE_API ("L2CAP - Calling ConnectCfm_Cb(), CID: 0x%04x Status: %d", p_ccb->local_cid, p_ci->status); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 180 | l2cu_release_ccb (p_ccb); |
| 181 | (*connect_cfm)(local_cid, p_ci->status); |
| 182 | } |
| 183 | break; |
| 184 | |
| 185 | case L2CEVT_L2CA_CONNECT_REQ: /* API connect request */ |
| 186 | /* Cancel sniff mode if needed */ |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 187 | { |
| 188 | tBTM_PM_PWR_MD settings; |
| 189 | // btla-specific ++ |
| 190 | memset((void*)&settings, 0, sizeof(settings)); |
| 191 | // btla-specific -- |
| 192 | settings.mode = BTM_PM_MD_ACTIVE; |
| 193 | /* COVERITY |
| 194 | Event uninit_use_in_call: Using uninitialized value "settings" (field "settings".timeout uninitialized) in call to function "BTM_SetPowerMode" [details] |
| 195 | Event uninit_use_in_call: Using uninitialized value "settings.max" in call to function "BTM_SetPowerMode" [details] |
| 196 | Event uninit_use_in_call: Using uninitialized value "settings.min" in call to function "BTM_SetPowerMode" |
| 197 | // FALSE-POSITIVE error from Coverity test-tool. Please do NOT remove following comment. |
| 198 | // coverity[uninit_use_in_call] False-positive: setting the mode to BTM_PM_MD_ACTIVE only uses settings.mode the other data members of tBTM_PM_PWR_MD are ignored |
| 199 | */ |
| 200 | BTM_SetPowerMode (BTM_PM_SET_ONLY_ID, p_ccb->p_lcb->remote_bd_addr, &settings); |
| 201 | } |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 202 | |
| 203 | /* If sec access does not result in started SEC_COM or COMP_NEG are already processed */ |
| 204 | if (btm_sec_l2cap_access_req (p_ccb->p_lcb->remote_bd_addr, p_ccb->p_rcb->psm, |
| 205 | p_ccb->p_lcb->handle, TRUE, &l2c_link_sec_comp, p_ccb) == BTM_CMD_STARTED) |
| 206 | p_ccb->chnl_state = CST_ORIG_W4_SEC_COMP; |
| 207 | break; |
| 208 | |
| 209 | case L2CEVT_SEC_COMP: |
| 210 | p_ccb->chnl_state = CST_W4_L2CAP_CONNECT_RSP; |
| 211 | |
| 212 | /* Wait for the info resp in this state before sending connect req (if needed) */ |
| 213 | if (!p_ccb->p_lcb->w4_info_rsp) |
| 214 | { |
| 215 | /* Need to have at least one compatible channel to continue */ |
| 216 | if (!l2c_fcr_chk_chan_modes(p_ccb)) |
| 217 | { |
| 218 | l2cu_release_ccb (p_ccb); |
| 219 | (*p_ccb->p_rcb->api.pL2CA_ConnectCfm_Cb)(local_cid, L2CAP_CONN_NO_LINK); |
| 220 | } |
| 221 | else |
| 222 | { |
| 223 | l2cu_send_peer_connect_req (p_ccb); |
| 224 | btu_start_timer (&p_ccb->timer_entry, BTU_TTYPE_L2CAP_CHNL, L2CAP_CHNL_CONNECT_TOUT); |
| 225 | } |
| 226 | } |
| 227 | break; |
| 228 | |
| 229 | case L2CEVT_SEC_COMP_NEG: /* something is really bad with security */ |
Sharvil Nanavati | a51c9d9 | 2014-05-04 01:08:21 -0700 | [diff] [blame] | 230 | L2CAP_TRACE_API ("L2CAP - Calling ConnectCfm_Cb(), CID: 0x%04x Status: %d", p_ccb->local_cid, L2CAP_CONN_TIMEOUT); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 231 | l2cu_release_ccb (p_ccb); |
| 232 | (*connect_cfm)(local_cid, L2CAP_CONN_SECURITY_BLOCK); |
| 233 | break; |
| 234 | |
| 235 | case L2CEVT_L2CAP_CONNECT_REQ: /* Peer connect request */ |
| 236 | /* stop link timer to avoid race condition between A2MP, Security, and L2CAP */ |
| 237 | btu_stop_timer (&p_ccb->p_lcb->timer_entry); |
| 238 | |
| 239 | /* Cancel sniff mode if needed */ |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 240 | { |
| 241 | tBTM_PM_PWR_MD settings; |
| 242 | // btla-specific ++ |
| 243 | memset((void*)&settings, 0, sizeof(settings)); |
| 244 | // btla-specific -- |
| 245 | settings.mode = BTM_PM_MD_ACTIVE; |
| 246 | /* COVERITY |
| 247 | Event uninit_use_in_call: Using uninitialized value "settings" (field "settings".timeout uninitialized) in call to function "BTM_SetPowerMode" [details] |
| 248 | Event uninit_use_in_call: Using uninitialized value "settings.max" in call to function "BTM_SetPowerMode" [details] |
| 249 | Event uninit_use_in_call: Using uninitialized value "settings.min" in call to function "BTM_SetPowerMode" |
| 250 | // FALSE-POSITIVE error from Coverity test-tool. Please do NOT remove following comment. |
| 251 | // coverity[uninit_use_in_call] False-positive: setting the mode to BTM_PM_MD_ACTIVE only uses settings.mode the other data members of tBTM_PM_PWR_MD are ignored |
| 252 | */ |
| 253 | BTM_SetPowerMode (BTM_PM_SET_ONLY_ID, p_ccb->p_lcb->remote_bd_addr, &settings); |
| 254 | } |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 255 | |
| 256 | p_ccb->chnl_state = CST_TERM_W4_SEC_COMP; |
| 257 | if (btm_sec_l2cap_access_req (p_ccb->p_lcb->remote_bd_addr, p_ccb->p_rcb->psm, |
| 258 | p_ccb->p_lcb->handle, FALSE, &l2c_link_sec_comp, p_ccb) == BTM_CMD_STARTED) |
| 259 | { |
| 260 | /* started the security process, tell the peer to set a longer timer */ |
| 261 | l2cu_send_peer_connect_rsp(p_ccb, L2CAP_CONN_PENDING, 0); |
| 262 | } |
| 263 | break; |
| 264 | |
| 265 | case L2CEVT_TIMEOUT: |
Sharvil Nanavati | a51c9d9 | 2014-05-04 01:08:21 -0700 | [diff] [blame] | 266 | L2CAP_TRACE_API ("L2CAP - Calling ConnectCfm_Cb(), CID: 0x%04x Status: %d", p_ccb->local_cid, L2CAP_CONN_TIMEOUT); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 267 | l2cu_release_ccb (p_ccb); |
| 268 | (*connect_cfm)(local_cid, L2CAP_CONN_TIMEOUT); |
| 269 | break; |
| 270 | |
| 271 | case L2CEVT_L2CAP_DATA: /* Peer data packet rcvd */ |
| 272 | case L2CEVT_L2CA_DATA_WRITE: /* Upper layer data to send */ |
| 273 | GKI_freebuf (p_data); |
| 274 | break; |
| 275 | |
| 276 | case L2CEVT_L2CA_DISCONNECT_REQ: /* Upper wants to disconnect */ |
| 277 | l2cu_release_ccb (p_ccb); |
| 278 | break; |
| 279 | } |
| 280 | } |
| 281 | |
| 282 | |
| 283 | /******************************************************************************* |
| 284 | ** |
| 285 | ** Function l2c_csm_orig_w4_sec_comp |
| 286 | ** |
| 287 | ** Description This function handles events when the channel is in |
| 288 | ** CST_ORIG_W4_SEC_COMP state. |
| 289 | ** |
| 290 | ** Returns void |
| 291 | ** |
| 292 | *******************************************************************************/ |
| 293 | static void l2c_csm_orig_w4_sec_comp (tL2C_CCB *p_ccb, UINT16 event, void *p_data) |
| 294 | { |
| 295 | tL2CA_DISCONNECT_IND_CB *disconnect_ind = p_ccb->p_rcb->api.pL2CA_DisconnectInd_Cb; |
| 296 | tL2CA_CONNECT_CFM_CB *connect_cfm = p_ccb->p_rcb->api.pL2CA_ConnectCfm_Cb; |
| 297 | UINT16 local_cid = p_ccb->local_cid; |
| 298 | |
| 299 | #if (BT_TRACE_VERBOSE == TRUE) |
Sharvil Nanavati | a51c9d9 | 2014-05-04 01:08:21 -0700 | [diff] [blame] | 300 | L2CAP_TRACE_EVENT ("L2CAP - LCID: 0x%04x st: ORIG_W4_SEC_COMP evt: %s", p_ccb->local_cid, l2c_csm_get_event_name (event)); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 301 | #else |
Sharvil Nanavati | a51c9d9 | 2014-05-04 01:08:21 -0700 | [diff] [blame] | 302 | L2CAP_TRACE_EVENT ("L2CAP - st: ORIG_W4_SEC_COMP evt: %d", event); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 303 | #endif |
| 304 | |
| 305 | #if (L2CAP_UCD_INCLUDED == TRUE) |
| 306 | if ( local_cid == L2CAP_CONNECTIONLESS_CID ) |
| 307 | { |
| 308 | /* check if this event can be processed by UCD */ |
| 309 | if ( l2c_ucd_process_event (p_ccb, event, p_data) ) |
| 310 | { |
| 311 | /* The event is processed by UCD state machine */ |
| 312 | return; |
| 313 | } |
| 314 | } |
| 315 | #endif |
| 316 | |
| 317 | switch (event) |
| 318 | { |
| 319 | case L2CEVT_LP_DISCONNECT_IND: /* Link was disconnected */ |
Sharvil Nanavati | a51c9d9 | 2014-05-04 01:08:21 -0700 | [diff] [blame] | 320 | L2CAP_TRACE_API ("L2CAP - Calling Disconnect_Ind_Cb(), CID: 0x%04x No Conf Needed", p_ccb->local_cid); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 321 | l2cu_release_ccb (p_ccb); |
| 322 | (*disconnect_ind)(local_cid, FALSE); |
| 323 | break; |
| 324 | |
| 325 | case L2CEVT_SEC_RE_SEND_CMD: /* BTM has enough info to proceed */ |
| 326 | case L2CEVT_LP_CONNECT_CFM: /* Link came up */ |
| 327 | btm_sec_l2cap_access_req (p_ccb->p_lcb->remote_bd_addr, p_ccb->p_rcb->psm, |
| 328 | p_ccb->p_lcb->handle, TRUE, &l2c_link_sec_comp, p_ccb); |
| 329 | break; |
| 330 | |
| 331 | case L2CEVT_SEC_COMP: /* Security completed success */ |
| 332 | /* Wait for the info resp in this state before sending connect req (if needed) */ |
| 333 | p_ccb->chnl_state = CST_W4_L2CAP_CONNECT_RSP; |
| 334 | if (!p_ccb->p_lcb->w4_info_rsp) |
| 335 | { |
| 336 | /* Need to have at least one compatible channel to continue */ |
| 337 | if (!l2c_fcr_chk_chan_modes(p_ccb)) |
| 338 | { |
| 339 | l2cu_release_ccb (p_ccb); |
| 340 | (*connect_cfm)(local_cid, L2CAP_CONN_NO_LINK); |
| 341 | } |
| 342 | else |
| 343 | { |
| 344 | btu_start_timer (&p_ccb->timer_entry, BTU_TTYPE_L2CAP_CHNL, L2CAP_CHNL_CONNECT_TOUT); |
| 345 | l2cu_send_peer_connect_req (p_ccb); /* Start Connection */ |
| 346 | } |
| 347 | } |
| 348 | break; |
| 349 | |
| 350 | case L2CEVT_SEC_COMP_NEG: |
Sharvil Nanavati | a51c9d9 | 2014-05-04 01:08:21 -0700 | [diff] [blame] | 351 | L2CAP_TRACE_API ("L2CAP - Calling ConnectCfm_Cb(), CID: 0x%04x Status: %d", p_ccb->local_cid, HCI_ERR_AUTH_FAILURE); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 352 | |
| 353 | /* If last channel immediately disconnect the ACL for better security. |
| 354 | Also prevents a race condition between BTM and L2CAP */ |
| 355 | if ( (p_ccb == p_ccb->p_lcb->ccb_queue.p_first_ccb) && (p_ccb == p_ccb->p_lcb->ccb_queue.p_last_ccb) ) |
| 356 | { |
| 357 | p_ccb->p_lcb->idle_timeout = 0; |
| 358 | } |
| 359 | |
| 360 | l2cu_release_ccb (p_ccb); |
| 361 | (*connect_cfm)(local_cid, HCI_ERR_AUTH_FAILURE); |
| 362 | break; |
| 363 | |
| 364 | case L2CEVT_L2CA_DATA_WRITE: /* Upper layer data to send */ |
| 365 | case L2CEVT_L2CAP_DATA: /* Peer data packet rcvd */ |
| 366 | GKI_freebuf (p_data); |
| 367 | break; |
| 368 | |
| 369 | case L2CEVT_L2CA_DISCONNECT_REQ: /* Upper wants to disconnect */ |
| 370 | /* Tell security manager to abort */ |
| 371 | btm_sec_abort_access_req (p_ccb->p_lcb->remote_bd_addr); |
| 372 | |
| 373 | l2cu_release_ccb (p_ccb); |
| 374 | break; |
| 375 | } |
| 376 | } |
| 377 | |
| 378 | |
| 379 | /******************************************************************************* |
| 380 | ** |
| 381 | ** Function l2c_csm_term_w4_sec_comp |
| 382 | ** |
| 383 | ** Description This function handles events when the channel is in |
| 384 | ** CST_TERM_W4_SEC_COMP state. |
| 385 | ** |
| 386 | ** Returns void |
| 387 | ** |
| 388 | *******************************************************************************/ |
| 389 | static void l2c_csm_term_w4_sec_comp (tL2C_CCB *p_ccb, UINT16 event, void *p_data) |
| 390 | { |
| 391 | #if (BT_TRACE_VERBOSE == TRUE) |
Sharvil Nanavati | a51c9d9 | 2014-05-04 01:08:21 -0700 | [diff] [blame] | 392 | L2CAP_TRACE_EVENT ("L2CAP - LCID: 0x%04x st: TERM_W4_SEC_COMP evt: %s", p_ccb->local_cid, l2c_csm_get_event_name (event)); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 393 | #else |
Sharvil Nanavati | a51c9d9 | 2014-05-04 01:08:21 -0700 | [diff] [blame] | 394 | L2CAP_TRACE_EVENT ("L2CAP - st: TERM_W4_SEC_COMP evt: %d", event); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 395 | #endif |
| 396 | |
| 397 | #if (L2CAP_UCD_INCLUDED == TRUE) |
| 398 | if ( p_ccb->local_cid == L2CAP_CONNECTIONLESS_CID ) |
| 399 | { |
| 400 | /* check if this event can be processed by UCD */ |
| 401 | if ( l2c_ucd_process_event (p_ccb, event, p_data) ) |
| 402 | { |
| 403 | /* The event is processed by UCD state machine */ |
| 404 | return; |
| 405 | } |
| 406 | } |
| 407 | #endif |
| 408 | |
| 409 | switch (event) |
| 410 | { |
| 411 | case L2CEVT_LP_DISCONNECT_IND: /* Link was disconnected */ |
| 412 | /* Tell security manager to abort */ |
| 413 | btm_sec_abort_access_req (p_ccb->p_lcb->remote_bd_addr); |
| 414 | |
| 415 | l2cu_release_ccb (p_ccb); |
| 416 | break; |
| 417 | |
| 418 | case L2CEVT_SEC_COMP: |
| 419 | p_ccb->chnl_state = CST_W4_L2CA_CONNECT_RSP; |
| 420 | |
| 421 | /* Wait for the info resp in next state before sending connect ind (if needed) */ |
| 422 | if (!p_ccb->p_lcb->w4_info_rsp) |
| 423 | { |
| 424 | /* Don't need to get info from peer or already retrieved so continue */ |
| 425 | btu_start_timer (&p_ccb->timer_entry, BTU_TTYPE_L2CAP_CHNL, L2CAP_CHNL_CONNECT_TOUT); |
Sharvil Nanavati | a51c9d9 | 2014-05-04 01:08:21 -0700 | [diff] [blame] | 426 | L2CAP_TRACE_API ("L2CAP - Calling Connect_Ind_Cb(), CID: 0x%04x", p_ccb->local_cid); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 427 | |
| 428 | (*p_ccb->p_rcb->api.pL2CA_ConnectInd_Cb) (p_ccb->p_lcb->remote_bd_addr, p_ccb->local_cid, |
| 429 | p_ccb->p_rcb->psm, p_ccb->remote_id); |
| 430 | } |
| 431 | else |
| 432 | { |
| 433 | /* |
| 434 | ** L2CAP Connect Response will be sent out by 3 sec timer expiration |
| 435 | ** because Bluesoleil doesn't respond to L2CAP Information Request. |
| 436 | ** Bluesoleil seems to disconnect ACL link as failure case, because |
| 437 | ** it takes too long (4~7secs) to get response. |
| 438 | ** product version : Bluesoleil 2.1.1.0 EDR Release 060123 |
| 439 | ** stack version : 05.04.11.20060119 |
| 440 | */ |
| 441 | |
| 442 | /* Waiting for the info resp, tell the peer to set a longer timer */ |
| 443 | l2cu_send_peer_connect_rsp(p_ccb, L2CAP_CONN_PENDING, 0); |
| 444 | } |
| 445 | break; |
| 446 | |
| 447 | case L2CEVT_SEC_COMP_NEG: |
| 448 | if (((tL2C_CONN_INFO *)p_data)->status == BTM_DELAY_CHECK) |
| 449 | { |
| 450 | /* start a timer - encryption change not received before L2CAP connect req */ |
| 451 | btu_start_timer (&p_ccb->timer_entry, BTU_TTYPE_L2CAP_CHNL, L2CAP_DELAY_CHECK_SM4); |
| 452 | } |
| 453 | else |
| 454 | { |
| 455 | l2cu_send_peer_connect_rsp (p_ccb, L2CAP_CONN_SECURITY_BLOCK, 0); |
| 456 | l2cu_release_ccb (p_ccb); |
| 457 | } |
| 458 | break; |
| 459 | |
| 460 | case L2CEVT_L2CA_DATA_WRITE: /* Upper layer data to send */ |
| 461 | case L2CEVT_L2CAP_DATA: /* Peer data packet rcvd */ |
| 462 | GKI_freebuf (p_data); |
| 463 | break; |
| 464 | |
| 465 | case L2CEVT_L2CA_DISCONNECT_REQ: /* Upper wants to disconnect */ |
| 466 | l2cu_release_ccb (p_ccb); |
| 467 | break; |
| 468 | |
| 469 | case L2CEVT_L2CAP_DISCONNECT_REQ: /* Peer disconnected request */ |
| 470 | l2cu_send_peer_disc_rsp (p_ccb->p_lcb, p_ccb->remote_id, p_ccb->local_cid, p_ccb->remote_cid); |
| 471 | |
| 472 | /* Tell security manager to abort */ |
| 473 | btm_sec_abort_access_req (p_ccb->p_lcb->remote_bd_addr); |
| 474 | |
| 475 | l2cu_release_ccb (p_ccb); |
| 476 | break; |
| 477 | |
| 478 | case L2CEVT_TIMEOUT: |
| 479 | /* SM4 related. */ |
| 480 | if (!btsnd_hcic_disconnect (p_ccb->p_lcb->handle, HCI_ERR_AUTH_FAILURE)) |
| 481 | { |
Sharvil Nanavati | a51c9d9 | 2014-05-04 01:08:21 -0700 | [diff] [blame] | 482 | L2CAP_TRACE_API ("L2CAP - Calling btsnd_hcic_disconnect for handle %i failed", p_ccb->p_lcb->handle); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 483 | btu_start_timer (&p_ccb->timer_entry, BTU_TTYPE_L2CAP_CHNL, 1); |
| 484 | } |
| 485 | break; |
| 486 | |
| 487 | case L2CEVT_SEC_RE_SEND_CMD: /* BTM has enough info to proceed */ |
| 488 | btm_sec_l2cap_access_req (p_ccb->p_lcb->remote_bd_addr, p_ccb->p_rcb->psm, |
| 489 | p_ccb->p_lcb->handle, FALSE, &l2c_link_sec_comp, p_ccb); |
| 490 | break; |
| 491 | } |
| 492 | } |
| 493 | |
| 494 | |
| 495 | /******************************************************************************* |
| 496 | ** |
| 497 | ** Function l2c_csm_w4_l2cap_connect_rsp |
| 498 | ** |
| 499 | ** Description This function handles events when the channel is in |
| 500 | ** CST_W4_L2CAP_CONNECT_RSP state. |
| 501 | ** |
| 502 | ** Returns void |
| 503 | ** |
| 504 | *******************************************************************************/ |
| 505 | static void l2c_csm_w4_l2cap_connect_rsp (tL2C_CCB *p_ccb, UINT16 event, void *p_data) |
| 506 | { |
| 507 | tL2C_CONN_INFO *p_ci = (tL2C_CONN_INFO *)p_data; |
| 508 | tL2CA_DISCONNECT_IND_CB *disconnect_ind = p_ccb->p_rcb->api.pL2CA_DisconnectInd_Cb; |
| 509 | tL2CA_CONNECT_CFM_CB *connect_cfm = p_ccb->p_rcb->api.pL2CA_ConnectCfm_Cb; |
| 510 | UINT16 local_cid = p_ccb->local_cid; |
| 511 | |
| 512 | #if (BT_TRACE_VERBOSE == TRUE) |
Sharvil Nanavati | a51c9d9 | 2014-05-04 01:08:21 -0700 | [diff] [blame] | 513 | L2CAP_TRACE_EVENT ("L2CAP - LCID: 0x%04x st: W4_L2CAP_CON_RSP evt: %s", p_ccb->local_cid, l2c_csm_get_event_name (event)); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 514 | #else |
Sharvil Nanavati | a51c9d9 | 2014-05-04 01:08:21 -0700 | [diff] [blame] | 515 | L2CAP_TRACE_EVENT ("L2CAP - st: W4_L2CAP_CON_RSP evt: %d", event); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 516 | #endif |
| 517 | |
| 518 | switch (event) |
| 519 | { |
| 520 | case L2CEVT_LP_DISCONNECT_IND: /* Link was disconnected */ |
| 521 | /* Send disc indication unless peer to peer race condition AND normal disconnect */ |
| 522 | /* *((UINT8 *)p_data) != HCI_ERR_PEER_USER happens when peer device try to disconnect for normal reason */ |
| 523 | p_ccb->chnl_state = CST_CLOSED; |
| 524 | if ((p_ccb->flags & CCB_FLAG_NO_RETRY) || !p_data || (*((UINT8 *)p_data) != HCI_ERR_PEER_USER)) |
| 525 | { |
Sharvil Nanavati | a51c9d9 | 2014-05-04 01:08:21 -0700 | [diff] [blame] | 526 | L2CAP_TRACE_API ("L2CAP - Calling Disconnect_Ind_Cb(), CID: 0x%04x No Conf Needed", |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 527 | p_ccb->local_cid); |
| 528 | l2cu_release_ccb (p_ccb); |
| 529 | (*disconnect_ind)(local_cid, FALSE); |
| 530 | } |
| 531 | p_ccb->flags |= CCB_FLAG_NO_RETRY; |
| 532 | break; |
| 533 | |
| 534 | case L2CEVT_L2CAP_CONNECT_RSP: /* Got peer connect confirm */ |
| 535 | p_ccb->remote_cid = p_ci->remote_cid; |
| 536 | p_ccb->chnl_state = CST_CONFIG; |
| 537 | btu_start_timer (&p_ccb->timer_entry, BTU_TTYPE_L2CAP_CHNL, L2CAP_CHNL_CFG_TIMEOUT); |
Sharvil Nanavati | a51c9d9 | 2014-05-04 01:08:21 -0700 | [diff] [blame] | 538 | L2CAP_TRACE_API ("L2CAP - Calling Connect_Cfm_Cb(), CID: 0x%04x, Success", p_ccb->local_cid); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 539 | |
| 540 | (*p_ccb->p_rcb->api.pL2CA_ConnectCfm_Cb)(local_cid, L2CAP_CONN_OK); |
| 541 | break; |
| 542 | |
| 543 | case L2CEVT_L2CAP_CONNECT_RSP_PND: /* Got peer connect pending */ |
| 544 | p_ccb->remote_cid = p_ci->remote_cid; |
| 545 | btu_start_timer (&p_ccb->timer_entry, BTU_TTYPE_L2CAP_CHNL, L2CAP_CHNL_CONNECT_TOUT_EXT); |
| 546 | if (p_ccb->p_rcb->api.pL2CA_ConnectPnd_Cb) |
| 547 | { |
Sharvil Nanavati | a51c9d9 | 2014-05-04 01:08:21 -0700 | [diff] [blame] | 548 | L2CAP_TRACE_API ("L2CAP - Calling Connect_Pnd_Cb(), CID: 0x%04x", p_ccb->local_cid); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 549 | (*p_ccb->p_rcb->api.pL2CA_ConnectPnd_Cb)(p_ccb->local_cid); |
| 550 | } |
| 551 | break; |
| 552 | |
| 553 | case L2CEVT_L2CAP_CONNECT_RSP_NEG: /* Peer rejected connection */ |
Sharvil Nanavati | a51c9d9 | 2014-05-04 01:08:21 -0700 | [diff] [blame] | 554 | L2CAP_TRACE_API ("L2CAP - Calling Connect_Cfm_Cb(), CID: 0x%04x, Failure Code: %d", p_ccb->local_cid, p_ci->l2cap_result); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 555 | l2cu_release_ccb (p_ccb); |
| 556 | (*connect_cfm)(local_cid, p_ci->l2cap_result); |
| 557 | break; |
| 558 | |
| 559 | case L2CEVT_TIMEOUT: |
Sharvil Nanavati | a51c9d9 | 2014-05-04 01:08:21 -0700 | [diff] [blame] | 560 | L2CAP_TRACE_API ("L2CAP - Calling Connect_Cfm_Cb(), CID: 0x%04x, Timeout", p_ccb->local_cid); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 561 | l2cu_release_ccb (p_ccb); |
| 562 | (*connect_cfm)(local_cid, L2CAP_CONN_TIMEOUT); |
| 563 | break; |
| 564 | |
| 565 | case L2CEVT_L2CA_DISCONNECT_REQ: /* Upper wants to disconnect */ |
| 566 | /* If we know peer CID from connect pending, we can send disconnect */ |
| 567 | if (p_ccb->remote_cid != 0) |
| 568 | { |
| 569 | l2cu_send_peer_disc_req (p_ccb); |
| 570 | p_ccb->chnl_state = CST_W4_L2CAP_DISCONNECT_RSP; |
| 571 | btu_start_timer (&p_ccb->timer_entry, BTU_TTYPE_L2CAP_CHNL, L2CAP_CHNL_DISCONNECT_TOUT); |
| 572 | } |
| 573 | else |
| 574 | l2cu_release_ccb (p_ccb); |
| 575 | break; |
| 576 | |
| 577 | case L2CEVT_L2CA_DATA_WRITE: /* Upper layer data to send */ |
| 578 | case L2CEVT_L2CAP_DATA: /* Peer data packet rcvd */ |
| 579 | GKI_freebuf (p_data); |
| 580 | break; |
| 581 | |
| 582 | case L2CEVT_L2CAP_INFO_RSP: |
| 583 | /* Need to have at least one compatible channel to continue */ |
| 584 | if (!l2c_fcr_chk_chan_modes(p_ccb)) |
| 585 | { |
| 586 | l2cu_release_ccb (p_ccb); |
| 587 | (*connect_cfm)(local_cid, L2CAP_CONN_NO_LINK); |
| 588 | } |
| 589 | else |
| 590 | { |
| 591 | /* We have feature info, so now send peer connect request */ |
| 592 | btu_start_timer (&p_ccb->timer_entry, BTU_TTYPE_L2CAP_CHNL, L2CAP_CHNL_CONNECT_TOUT); |
| 593 | l2cu_send_peer_connect_req (p_ccb); /* Start Connection */ |
| 594 | } |
| 595 | break; |
| 596 | } |
| 597 | } |
| 598 | |
| 599 | |
| 600 | /******************************************************************************* |
| 601 | ** |
| 602 | ** Function l2c_csm_w4_l2ca_connect_rsp |
| 603 | ** |
| 604 | ** Description This function handles events when the channel is in |
| 605 | ** CST_W4_L2CA_CONNECT_RSP state. |
| 606 | ** |
| 607 | ** Returns void |
| 608 | ** |
| 609 | *******************************************************************************/ |
| 610 | static void l2c_csm_w4_l2ca_connect_rsp (tL2C_CCB *p_ccb, UINT16 event, void *p_data) |
| 611 | { |
| 612 | tL2C_CONN_INFO *p_ci; |
| 613 | tL2CA_DISCONNECT_IND_CB *disconnect_ind = p_ccb->p_rcb->api.pL2CA_DisconnectInd_Cb; |
| 614 | UINT16 local_cid = p_ccb->local_cid; |
| 615 | |
| 616 | #if (BT_TRACE_VERBOSE == TRUE) |
Sharvil Nanavati | a51c9d9 | 2014-05-04 01:08:21 -0700 | [diff] [blame] | 617 | L2CAP_TRACE_EVENT ("L2CAP - LCID: 0x%04x st: W4_L2CA_CON_RSP evt: %s", p_ccb->local_cid, l2c_csm_get_event_name (event)); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 618 | #else |
Sharvil Nanavati | a51c9d9 | 2014-05-04 01:08:21 -0700 | [diff] [blame] | 619 | L2CAP_TRACE_EVENT ("L2CAP - st: W4_L2CA_CON_RSP evt: %d", event); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 620 | #endif |
| 621 | |
| 622 | switch (event) |
| 623 | { |
| 624 | case L2CEVT_LP_DISCONNECT_IND: /* Link was disconnected */ |
Sharvil Nanavati | a51c9d9 | 2014-05-04 01:08:21 -0700 | [diff] [blame] | 625 | L2CAP_TRACE_API ("L2CAP - Calling Disconnect_Ind_Cb(), CID: 0x%04x No Conf Needed", p_ccb->local_cid); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 626 | l2cu_release_ccb (p_ccb); |
| 627 | (*disconnect_ind)(local_cid, FALSE); |
| 628 | break; |
| 629 | |
| 630 | case L2CEVT_L2CA_CONNECT_RSP: |
| 631 | p_ci = (tL2C_CONN_INFO *)p_data; |
| 632 | |
| 633 | /* Result should be OK or PENDING */ |
| 634 | if ((!p_ci) || (p_ci->l2cap_result == L2CAP_CONN_OK)) |
| 635 | { |
| 636 | l2cu_send_peer_connect_rsp (p_ccb, L2CAP_CONN_OK, 0); |
| 637 | p_ccb->chnl_state = CST_CONFIG; |
| 638 | btu_start_timer (&p_ccb->timer_entry, BTU_TTYPE_L2CAP_CHNL, L2CAP_CHNL_CFG_TIMEOUT); |
| 639 | } |
| 640 | else |
| 641 | { |
| 642 | /* If pending, stay in same state and start extended timer */ |
| 643 | l2cu_send_peer_connect_rsp (p_ccb, p_ci->l2cap_result, p_ci->l2cap_status); |
| 644 | btu_start_timer (&p_ccb->timer_entry, BTU_TTYPE_L2CAP_CHNL, L2CAP_CHNL_CONNECT_TOUT_EXT); |
| 645 | } |
| 646 | break; |
| 647 | |
| 648 | case L2CEVT_L2CA_CONNECT_RSP_NEG: |
| 649 | p_ci = (tL2C_CONN_INFO *)p_data; |
| 650 | l2cu_send_peer_connect_rsp (p_ccb, p_ci->l2cap_result, p_ci->l2cap_status); |
| 651 | l2cu_release_ccb (p_ccb); |
| 652 | break; |
| 653 | |
| 654 | case L2CEVT_TIMEOUT: |
| 655 | l2cu_send_peer_connect_rsp (p_ccb, L2CAP_CONN_NO_PSM, 0); |
Sharvil Nanavati | a51c9d9 | 2014-05-04 01:08:21 -0700 | [diff] [blame] | 656 | L2CAP_TRACE_API ("L2CAP - Calling Disconnect_Ind_Cb(), CID: 0x%04x No Conf Needed", p_ccb->local_cid); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 657 | l2cu_release_ccb (p_ccb); |
| 658 | (*disconnect_ind)(local_cid, FALSE); |
| 659 | break; |
| 660 | |
| 661 | case L2CEVT_L2CA_DATA_WRITE: /* Upper layer data to send */ |
| 662 | case L2CEVT_L2CAP_DATA: /* Peer data packet rcvd */ |
| 663 | GKI_freebuf (p_data); |
| 664 | break; |
| 665 | |
| 666 | case L2CEVT_L2CA_DISCONNECT_REQ: /* Upper wants to disconnect */ |
| 667 | l2cu_send_peer_disc_req (p_ccb); |
| 668 | p_ccb->chnl_state = CST_W4_L2CAP_DISCONNECT_RSP; |
| 669 | btu_start_timer (&p_ccb->timer_entry, BTU_TTYPE_L2CAP_CHNL, L2CAP_CHNL_DISCONNECT_TOUT); |
| 670 | break; |
| 671 | |
| 672 | case L2CEVT_L2CAP_INFO_RSP: |
| 673 | /* We have feature info, so now give the upper layer connect IND */ |
| 674 | btu_start_timer (&p_ccb->timer_entry, BTU_TTYPE_L2CAP_CHNL, L2CAP_CHNL_CONNECT_TOUT); |
Sharvil Nanavati | a51c9d9 | 2014-05-04 01:08:21 -0700 | [diff] [blame] | 675 | L2CAP_TRACE_API ("L2CAP - Calling Connect_Ind_Cb(), CID: 0x%04x", p_ccb->local_cid); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 676 | |
| 677 | (*p_ccb->p_rcb->api.pL2CA_ConnectInd_Cb) (p_ccb->p_lcb->remote_bd_addr, |
| 678 | p_ccb->local_cid, |
| 679 | p_ccb->p_rcb->psm, |
| 680 | p_ccb->remote_id); |
| 681 | break; |
| 682 | } |
| 683 | } |
| 684 | |
| 685 | |
| 686 | /******************************************************************************* |
| 687 | ** |
| 688 | ** Function l2c_csm_config |
| 689 | ** |
| 690 | ** Description This function handles events when the channel is in |
| 691 | ** CONFIG state. |
| 692 | ** |
| 693 | ** Returns void |
| 694 | ** |
| 695 | *******************************************************************************/ |
| 696 | static void l2c_csm_config (tL2C_CCB *p_ccb, UINT16 event, void *p_data) |
| 697 | { |
| 698 | tL2CAP_CFG_INFO *p_cfg = (tL2CAP_CFG_INFO *)p_data; |
| 699 | tL2CA_DISCONNECT_IND_CB *disconnect_ind = p_ccb->p_rcb->api.pL2CA_DisconnectInd_Cb; |
| 700 | UINT16 local_cid = p_ccb->local_cid; |
| 701 | UINT8 cfg_result; |
| 702 | |
| 703 | #if (BT_TRACE_VERBOSE == TRUE) |
Sharvil Nanavati | a51c9d9 | 2014-05-04 01:08:21 -0700 | [diff] [blame] | 704 | L2CAP_TRACE_EVENT ("L2CAP - LCID: 0x%04x st: CONFIG evt: %s", p_ccb->local_cid, l2c_csm_get_event_name (event)); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 705 | #else |
Sharvil Nanavati | a51c9d9 | 2014-05-04 01:08:21 -0700 | [diff] [blame] | 706 | L2CAP_TRACE_EVENT ("L2CAP - st: CONFIG evt: %d", event); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 707 | #endif |
| 708 | |
| 709 | switch (event) |
| 710 | { |
| 711 | case L2CEVT_LP_DISCONNECT_IND: /* Link was disconnected */ |
Sharvil Nanavati | a51c9d9 | 2014-05-04 01:08:21 -0700 | [diff] [blame] | 712 | L2CAP_TRACE_API ("L2CAP - Calling Disconnect_Ind_Cb(), CID: 0x%04x No Conf Needed", p_ccb->local_cid); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 713 | l2cu_release_ccb (p_ccb); |
| 714 | (*disconnect_ind)(local_cid, FALSE); |
| 715 | break; |
| 716 | |
| 717 | case L2CEVT_L2CAP_CONFIG_REQ: /* Peer config request */ |
| 718 | |
| 719 | if ((cfg_result = l2cu_process_peer_cfg_req (p_ccb, p_cfg)) == L2CAP_PEER_CFG_OK) |
| 720 | { |
Sharvil Nanavati | a51c9d9 | 2014-05-04 01:08:21 -0700 | [diff] [blame] | 721 | L2CAP_TRACE_EVENT ("L2CAP - Calling Config_Req_Cb(), CID: 0x%04x, C-bit %d", |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 722 | p_ccb->local_cid, (p_cfg->flags & L2CAP_CFG_FLAGS_MASK_CONT)); |
| 723 | (*p_ccb->p_rcb->api.pL2CA_ConfigInd_Cb)(p_ccb->local_cid, p_cfg); |
| 724 | } |
| 725 | else if (cfg_result == L2CAP_PEER_CFG_DISCONNECT) |
| 726 | { |
| 727 | /* Disconnect if channels are incompatible */ |
Sharvil Nanavati | a51c9d9 | 2014-05-04 01:08:21 -0700 | [diff] [blame] | 728 | L2CAP_TRACE_EVENT ("L2CAP - incompatible configurations disconnect"); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 729 | l2cu_disconnect_chnl (p_ccb); |
| 730 | } |
| 731 | else /* Return error to peer so he can renegotiate if possible */ |
| 732 | { |
Sharvil Nanavati | a51c9d9 | 2014-05-04 01:08:21 -0700 | [diff] [blame] | 733 | L2CAP_TRACE_EVENT ("L2CAP - incompatible configurations trying reconfig"); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 734 | l2cu_send_peer_config_rsp (p_ccb, p_cfg); |
| 735 | } |
| 736 | break; |
| 737 | |
| 738 | case L2CEVT_L2CAP_CONFIG_RSP: /* Peer config response */ |
| 739 | l2cu_process_peer_cfg_rsp (p_ccb, p_cfg); |
| 740 | |
| 741 | if (p_cfg->result != L2CAP_CFG_PENDING) |
| 742 | { |
| 743 | /* TBD: When config options grow beyong minimum MTU (48 bytes) |
| 744 | * logic needs to be added to handle responses with |
| 745 | * continuation bit set in flags field. |
| 746 | * 1. Send additional config request out until C-bit is cleared in response |
| 747 | */ |
| 748 | p_ccb->config_done |= OB_CFG_DONE; |
| 749 | |
| 750 | if (p_ccb->config_done & IB_CFG_DONE) |
| 751 | { |
| 752 | /* Verify two sides are in compatible modes before continuing */ |
| 753 | if (p_ccb->our_cfg.fcr.mode != p_ccb->peer_cfg.fcr.mode) |
| 754 | { |
| 755 | l2cu_send_peer_disc_req (p_ccb); |
Sharvil Nanavati | a51c9d9 | 2014-05-04 01:08:21 -0700 | [diff] [blame] | 756 | L2CAP_TRACE_WARNING ("L2CAP - Calling Disconnect_Ind_Cb(Incompatible CFG), CID: 0x%04x No Conf Needed", p_ccb->local_cid); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 757 | l2cu_release_ccb (p_ccb); |
| 758 | (*disconnect_ind)(local_cid, FALSE); |
| 759 | break; |
| 760 | } |
| 761 | |
| 762 | p_ccb->config_done |= RECONFIG_FLAG; |
| 763 | p_ccb->chnl_state = CST_OPEN; |
| 764 | l2c_link_adjust_chnl_allocation (); |
| 765 | btu_stop_timer (&p_ccb->timer_entry); |
| 766 | |
| 767 | /* If using eRTM and waiting for an ACK, restart the ACK timer */ |
| 768 | if (p_ccb->fcrb.wait_ack) |
| 769 | l2c_fcr_start_timer(p_ccb); |
| 770 | |
| 771 | /* |
| 772 | ** check p_ccb->our_cfg.fcr.mon_tout and p_ccb->our_cfg.fcr.rtrans_tout |
| 773 | ** we may set them to zero when sending config request during renegotiation |
| 774 | */ |
| 775 | if ((p_ccb->our_cfg.fcr.mode == L2CAP_FCR_ERTM_MODE) |
| 776 | &&((p_ccb->our_cfg.fcr.mon_tout == 0)||(p_ccb->our_cfg.fcr.rtrans_tout))) |
| 777 | { |
| 778 | l2c_fcr_adj_monitor_retran_timeout (p_ccb); |
| 779 | } |
| 780 | |
| 781 | #if (L2CAP_ERTM_STATS == TRUE) |
Pavlin Radoslavov | c196f21 | 2015-09-23 20:39:53 -0700 | [diff] [blame] | 782 | p_ccb->fcrb.connect_tick_count = time_get_os_boottime_ms(); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 783 | #endif |
| 784 | /* See if we can forward anything on the hold queue */ |
Pavlin Radoslavov | 1a3844f | 2015-09-25 11:21:15 -0700 | [diff] [blame^] | 785 | if (!fixed_queue_is_empty(p_ccb->xmit_hold_q)) |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 786 | { |
| 787 | l2c_link_check_send_pkts (p_ccb->p_lcb, NULL, NULL); |
| 788 | } |
| 789 | } |
| 790 | } |
| 791 | |
Sharvil Nanavati | a51c9d9 | 2014-05-04 01:08:21 -0700 | [diff] [blame] | 792 | L2CAP_TRACE_API ("L2CAP - Calling Config_Rsp_Cb(), CID: 0x%04x", p_ccb->local_cid); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 793 | (*p_ccb->p_rcb->api.pL2CA_ConfigCfm_Cb)(p_ccb->local_cid, p_cfg); |
| 794 | break; |
| 795 | |
| 796 | case L2CEVT_L2CAP_CONFIG_RSP_NEG: /* Peer config error rsp */ |
| 797 | /* Disable the Timer */ |
| 798 | btu_stop_timer (&p_ccb->timer_entry); |
| 799 | |
| 800 | /* If failure was channel mode try to renegotiate */ |
| 801 | if (l2c_fcr_renegotiate_chan(p_ccb, p_cfg) == FALSE) |
| 802 | { |
Sharvil Nanavati | a51c9d9 | 2014-05-04 01:08:21 -0700 | [diff] [blame] | 803 | L2CAP_TRACE_API ("L2CAP - Calling Config_Rsp_Cb(), CID: 0x%04x, Failure: %d", p_ccb->local_cid, p_cfg->result); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 804 | (*p_ccb->p_rcb->api.pL2CA_ConfigCfm_Cb)(p_ccb->local_cid, p_cfg); |
| 805 | } |
| 806 | break; |
| 807 | |
| 808 | case L2CEVT_L2CAP_DISCONNECT_REQ: /* Peer disconnected request */ |
| 809 | btu_start_timer (&p_ccb->timer_entry, BTU_TTYPE_L2CAP_CHNL, L2CAP_CHNL_DISCONNECT_TOUT); |
| 810 | p_ccb->chnl_state = CST_W4_L2CA_DISCONNECT_RSP; |
Sharvil Nanavati | a51c9d9 | 2014-05-04 01:08:21 -0700 | [diff] [blame] | 811 | L2CAP_TRACE_API ("L2CAP - Calling Disconnect_Ind_Cb(), CID: 0x%04x Conf Needed", p_ccb->local_cid); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 812 | (*p_ccb->p_rcb->api.pL2CA_DisconnectInd_Cb)(p_ccb->local_cid, TRUE); |
| 813 | break; |
| 814 | |
| 815 | case L2CEVT_L2CA_CONFIG_REQ: /* Upper layer config req */ |
| 816 | l2cu_process_our_cfg_req (p_ccb, p_cfg); |
| 817 | l2cu_send_peer_config_req (p_ccb, p_cfg); |
| 818 | btu_start_timer (&p_ccb->timer_entry, BTU_TTYPE_L2CAP_CHNL, L2CAP_CHNL_CFG_TIMEOUT); |
| 819 | break; |
| 820 | |
| 821 | case L2CEVT_L2CA_CONFIG_RSP: /* Upper layer config rsp */ |
| 822 | l2cu_process_our_cfg_rsp (p_ccb, p_cfg); |
| 823 | |
| 824 | /* Not finished if continuation flag is set */ |
| 825 | if ( (p_cfg->flags & L2CAP_CFG_FLAGS_MASK_CONT) || (p_cfg->result == L2CAP_CFG_PENDING) ) |
| 826 | { |
| 827 | /* Send intermediate response; remain in cfg state */ |
| 828 | l2cu_send_peer_config_rsp (p_ccb, p_cfg); |
| 829 | break; |
| 830 | } |
| 831 | |
| 832 | /* Local config done; clear cached configuration in case reconfig takes place later */ |
| 833 | p_ccb->peer_cfg.mtu_present = FALSE; |
| 834 | p_ccb->peer_cfg.flush_to_present = FALSE; |
| 835 | p_ccb->peer_cfg.qos_present = FALSE; |
| 836 | |
| 837 | p_ccb->config_done |= IB_CFG_DONE; |
| 838 | |
| 839 | if (p_ccb->config_done & OB_CFG_DONE) |
| 840 | { |
| 841 | /* Verify two sides are in compatible modes before continuing */ |
| 842 | if (p_ccb->our_cfg.fcr.mode != p_ccb->peer_cfg.fcr.mode) |
| 843 | { |
| 844 | l2cu_send_peer_disc_req (p_ccb); |
Sharvil Nanavati | a51c9d9 | 2014-05-04 01:08:21 -0700 | [diff] [blame] | 845 | L2CAP_TRACE_WARNING ("L2CAP - Calling Disconnect_Ind_Cb(Incompatible CFG), CID: 0x%04x No Conf Needed", p_ccb->local_cid); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 846 | l2cu_release_ccb (p_ccb); |
| 847 | (*disconnect_ind)(local_cid, FALSE); |
| 848 | break; |
| 849 | } |
| 850 | |
| 851 | p_ccb->config_done |= RECONFIG_FLAG; |
| 852 | p_ccb->chnl_state = CST_OPEN; |
| 853 | l2c_link_adjust_chnl_allocation (); |
| 854 | btu_stop_timer (&p_ccb->timer_entry); |
| 855 | } |
| 856 | |
| 857 | l2cu_send_peer_config_rsp (p_ccb, p_cfg); |
| 858 | |
| 859 | /* If using eRTM and waiting for an ACK, restart the ACK timer */ |
| 860 | if (p_ccb->fcrb.wait_ack) |
| 861 | l2c_fcr_start_timer(p_ccb); |
| 862 | |
| 863 | #if (L2CAP_ERTM_STATS == TRUE) |
Pavlin Radoslavov | c196f21 | 2015-09-23 20:39:53 -0700 | [diff] [blame] | 864 | p_ccb->fcrb.connect_tick_count = time_get_os_boottime_ms(); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 865 | #endif |
| 866 | |
| 867 | /* See if we can forward anything on the hold queue */ |
Pavlin Radoslavov | 1a3844f | 2015-09-25 11:21:15 -0700 | [diff] [blame^] | 868 | if ( (p_ccb->chnl_state == CST_OPEN) && |
| 869 | (!fixed_queue_is_empty(p_ccb->xmit_hold_q))) |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 870 | { |
| 871 | l2c_link_check_send_pkts (p_ccb->p_lcb, NULL, NULL); |
| 872 | } |
| 873 | break; |
| 874 | |
| 875 | case L2CEVT_L2CA_CONFIG_RSP_NEG: /* Upper layer config reject */ |
| 876 | l2cu_send_peer_config_rsp (p_ccb, p_cfg); |
| 877 | btu_start_timer (&p_ccb->timer_entry, BTU_TTYPE_L2CAP_CHNL, L2CAP_CHNL_CFG_TIMEOUT); |
| 878 | break; |
| 879 | |
| 880 | case L2CEVT_L2CA_DISCONNECT_REQ: /* Upper wants to disconnect */ |
| 881 | l2cu_send_peer_disc_req (p_ccb); |
| 882 | p_ccb->chnl_state = CST_W4_L2CAP_DISCONNECT_RSP; |
| 883 | btu_start_timer (&p_ccb->timer_entry, BTU_TTYPE_L2CAP_CHNL, L2CAP_CHNL_DISCONNECT_TOUT); |
| 884 | break; |
| 885 | |
| 886 | case L2CEVT_L2CAP_DATA: /* Peer data packet rcvd */ |
Sharvil Nanavati | a51c9d9 | 2014-05-04 01:08:21 -0700 | [diff] [blame] | 887 | L2CAP_TRACE_API ("L2CAP - Calling DataInd_Cb(), CID: 0x%04x", p_ccb->local_cid); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 888 | #if (L2CAP_NUM_FIXED_CHNLS > 0) |
Kim Schulz | 2a2701c | 2013-09-16 15:59:33 +0200 | [diff] [blame] | 889 | if (p_ccb->local_cid >= L2CAP_FIRST_FIXED_CHNL && |
| 890 | p_ccb->local_cid <= L2CAP_LAST_FIXED_CHNL) |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 891 | { |
Kim Schulz | 2a2701c | 2013-09-16 15:59:33 +0200 | [diff] [blame] | 892 | if (p_ccb->local_cid < L2CAP_BASE_APPL_CID) |
| 893 | { |
| 894 | if (l2cb.fixed_reg[p_ccb->local_cid - L2CAP_FIRST_FIXED_CHNL].pL2CA_FixedData_Cb) |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 895 | (*l2cb.fixed_reg[p_ccb->local_cid - L2CAP_FIRST_FIXED_CHNL].pL2CA_FixedData_Cb) |
| 896 | (p_ccb->local_cid, p_ccb->p_lcb->remote_bd_addr,(BT_HDR *)p_data); |
Kim Schulz | 2a2701c | 2013-09-16 15:59:33 +0200 | [diff] [blame] | 897 | else |
| 898 | GKI_freebuf (p_data); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 899 | break; |
Kim Schulz | 2a2701c | 2013-09-16 15:59:33 +0200 | [diff] [blame] | 900 | } |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 901 | } |
| 902 | #endif |
| 903 | (*p_ccb->p_rcb->api.pL2CA_DataInd_Cb)(p_ccb->local_cid, (BT_HDR *)p_data); |
| 904 | break; |
| 905 | |
| 906 | case L2CEVT_L2CA_DATA_WRITE: /* Upper layer data to send */ |
| 907 | if (p_ccb->config_done & OB_CFG_DONE) |
| 908 | l2c_enqueue_peer_data (p_ccb, (BT_HDR *)p_data); |
| 909 | else |
| 910 | GKI_freebuf (p_data); |
| 911 | break; |
| 912 | |
| 913 | case L2CEVT_TIMEOUT: |
| 914 | l2cu_send_peer_disc_req (p_ccb); |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 915 | L2CAP_TRACE_API ("L2CAP - Calling Disconnect_Ind_Cb(), CID: 0x%04x No Conf Needed", |
| 916 | p_ccb->local_cid); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 917 | l2cu_release_ccb (p_ccb); |
| 918 | (*disconnect_ind)(local_cid, FALSE); |
| 919 | break; |
| 920 | } |
| 921 | } |
| 922 | |
| 923 | |
| 924 | /******************************************************************************* |
| 925 | ** |
| 926 | ** Function l2c_csm_open |
| 927 | ** |
| 928 | ** Description This function handles events when the channel is in |
| 929 | ** OPEN state. |
| 930 | ** |
| 931 | ** Returns void |
| 932 | ** |
| 933 | *******************************************************************************/ |
| 934 | static void l2c_csm_open (tL2C_CCB *p_ccb, UINT16 event, void *p_data) |
| 935 | { |
| 936 | UINT16 local_cid = p_ccb->local_cid; |
| 937 | tL2CAP_CFG_INFO *p_cfg; |
| 938 | tL2C_CHNL_STATE tempstate; |
| 939 | UINT8 tempcfgdone; |
| 940 | UINT8 cfg_result; |
| 941 | |
| 942 | #if (BT_TRACE_VERBOSE == TRUE) |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 943 | L2CAP_TRACE_EVENT ("L2CAP - LCID: 0x%04x st: OPEN evt: %s", |
| 944 | p_ccb->local_cid, l2c_csm_get_event_name (event)); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 945 | #else |
Sharvil Nanavati | a51c9d9 | 2014-05-04 01:08:21 -0700 | [diff] [blame] | 946 | L2CAP_TRACE_EVENT ("L2CAP - st: OPEN evt: %d", event); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 947 | #endif |
| 948 | |
| 949 | #if (L2CAP_UCD_INCLUDED == TRUE) |
| 950 | if ( local_cid == L2CAP_CONNECTIONLESS_CID ) |
| 951 | { |
| 952 | /* check if this event can be processed by UCD */ |
| 953 | if ( l2c_ucd_process_event (p_ccb, event, p_data) ) |
| 954 | { |
| 955 | /* The event is processed by UCD state machine */ |
| 956 | return; |
| 957 | } |
| 958 | } |
| 959 | #endif |
| 960 | |
| 961 | switch (event) |
| 962 | { |
| 963 | case L2CEVT_LP_DISCONNECT_IND: /* Link was disconnected */ |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 964 | L2CAP_TRACE_API ("L2CAP - Calling Disconnect_Ind_Cb(), CID: 0x%04x No Conf Needed", |
| 965 | p_ccb->local_cid); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 966 | l2cu_release_ccb (p_ccb); |
| 967 | if (p_ccb->p_rcb) |
| 968 | (*p_ccb->p_rcb->api.pL2CA_DisconnectInd_Cb)(local_cid, FALSE); |
| 969 | break; |
| 970 | |
| 971 | case L2CEVT_LP_QOS_VIOLATION_IND: /* QOS violation */ |
| 972 | /* Tell upper layer. If service guaranteed, then clear the channel */ |
| 973 | if (p_ccb->p_rcb->api.pL2CA_QoSViolationInd_Cb) |
| 974 | (*p_ccb->p_rcb->api.pL2CA_QoSViolationInd_Cb)(p_ccb->p_lcb->remote_bd_addr); |
| 975 | break; |
| 976 | |
| 977 | case L2CEVT_L2CAP_CONFIG_REQ: /* Peer config request */ |
| 978 | p_cfg = (tL2CAP_CFG_INFO *)p_data; |
| 979 | |
| 980 | tempstate = p_ccb->chnl_state; |
| 981 | tempcfgdone = p_ccb->config_done; |
| 982 | p_ccb->chnl_state = CST_CONFIG; |
| 983 | p_ccb->config_done &= ~CFG_DONE_MASK; |
| 984 | |
| 985 | btu_start_timer (&p_ccb->timer_entry, BTU_TTYPE_L2CAP_CHNL, L2CAP_CHNL_CFG_TIMEOUT); |
| 986 | |
| 987 | if ((cfg_result = l2cu_process_peer_cfg_req (p_ccb, p_cfg)) == L2CAP_PEER_CFG_OK) |
| 988 | { |
| 989 | (*p_ccb->p_rcb->api.pL2CA_ConfigInd_Cb)(p_ccb->local_cid, p_cfg); |
| 990 | } |
| 991 | |
| 992 | /* Error in config parameters: reset state and config flag */ |
| 993 | else if (cfg_result == L2CAP_PEER_CFG_UNACCEPTABLE) |
| 994 | { |
| 995 | btu_stop_timer(&p_ccb->timer_entry); |
| 996 | p_ccb->chnl_state = tempstate; |
| 997 | p_ccb->config_done = tempcfgdone; |
| 998 | l2cu_send_peer_config_rsp (p_ccb, p_cfg); |
| 999 | } |
| 1000 | else /* L2CAP_PEER_CFG_DISCONNECT */ |
| 1001 | { |
| 1002 | /* Disconnect if channels are incompatible |
| 1003 | * Note this should not occur if reconfigure |
| 1004 | * since this should have never passed original config. |
| 1005 | */ |
| 1006 | l2cu_disconnect_chnl (p_ccb); |
| 1007 | } |
| 1008 | break; |
| 1009 | |
| 1010 | case L2CEVT_L2CAP_DISCONNECT_REQ: /* Peer disconnected request */ |
| 1011 | // btla-specific ++ |
| 1012 | /* Make sure we are not in sniff mode */ |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 1013 | { |
| 1014 | tBTM_PM_PWR_MD settings; |
Adam Hampson | f6418a1 | 2014-05-16 16:41:22 -0700 | [diff] [blame] | 1015 | memset((void*)&settings, 0, sizeof(settings)); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 1016 | settings.mode = BTM_PM_MD_ACTIVE; |
| 1017 | BTM_SetPowerMode (BTM_PM_SET_ONLY_ID, p_ccb->p_lcb->remote_bd_addr, &settings); |
| 1018 | } |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 1019 | // btla-specific -- |
| 1020 | |
| 1021 | p_ccb->chnl_state = CST_W4_L2CA_DISCONNECT_RSP; |
| 1022 | btu_start_timer (&p_ccb->timer_entry, BTU_TTYPE_L2CAP_CHNL, L2CAP_CHNL_DISCONNECT_TOUT); |
Sharvil Nanavati | a51c9d9 | 2014-05-04 01:08:21 -0700 | [diff] [blame] | 1023 | L2CAP_TRACE_API ("L2CAP - Calling Disconnect_Ind_Cb(), CID: 0x%04x Conf Needed", p_ccb->local_cid); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 1024 | (*p_ccb->p_rcb->api.pL2CA_DisconnectInd_Cb)(p_ccb->local_cid, TRUE); |
| 1025 | break; |
| 1026 | |
| 1027 | case L2CEVT_L2CAP_DATA: /* Peer data packet rcvd */ |
Srinu Jella | 780afa3 | 2014-05-30 21:15:01 +0530 | [diff] [blame] | 1028 | if((p_ccb->p_rcb) && (p_ccb->p_rcb->api.pL2CA_DataInd_Cb)) |
| 1029 | (*p_ccb->p_rcb->api.pL2CA_DataInd_Cb)(p_ccb->local_cid, (BT_HDR *)p_data); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 1030 | break; |
| 1031 | |
| 1032 | case L2CEVT_L2CA_DISCONNECT_REQ: /* Upper wants to disconnect */ |
| 1033 | /* Make sure we are not in sniff mode */ |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 1034 | { |
| 1035 | tBTM_PM_PWR_MD settings; |
Adam Hampson | f6418a1 | 2014-05-16 16:41:22 -0700 | [diff] [blame] | 1036 | memset((void*)&settings, 0, sizeof(settings)); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 1037 | settings.mode = BTM_PM_MD_ACTIVE; |
| 1038 | BTM_SetPowerMode (BTM_PM_SET_ONLY_ID, p_ccb->p_lcb->remote_bd_addr, &settings); |
| 1039 | } |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 1040 | |
| 1041 | l2cu_send_peer_disc_req (p_ccb); |
| 1042 | p_ccb->chnl_state = CST_W4_L2CAP_DISCONNECT_RSP; |
| 1043 | btu_start_timer (&p_ccb->timer_entry, BTU_TTYPE_L2CAP_CHNL, L2CAP_CHNL_DISCONNECT_TOUT); |
| 1044 | break; |
| 1045 | |
| 1046 | case L2CEVT_L2CA_DATA_WRITE: /* Upper layer data to send */ |
| 1047 | l2c_enqueue_peer_data (p_ccb, (BT_HDR *)p_data); |
| 1048 | l2c_link_check_send_pkts (p_ccb->p_lcb, NULL, NULL); |
| 1049 | break; |
| 1050 | |
| 1051 | case L2CEVT_L2CA_CONFIG_REQ: /* Upper layer config req */ |
| 1052 | p_ccb->chnl_state = CST_CONFIG; |
| 1053 | p_ccb->config_done &= ~CFG_DONE_MASK; |
| 1054 | l2cu_process_our_cfg_req (p_ccb, (tL2CAP_CFG_INFO *)p_data); |
| 1055 | l2cu_send_peer_config_req (p_ccb, (tL2CAP_CFG_INFO *)p_data); |
| 1056 | btu_start_timer (&p_ccb->timer_entry, BTU_TTYPE_L2CAP_CHNL, L2CAP_CHNL_CFG_TIMEOUT); |
| 1057 | break; |
| 1058 | |
| 1059 | case L2CEVT_TIMEOUT: |
| 1060 | /* Process the monitor/retransmission time-outs in flow control/retrans mode */ |
| 1061 | if (p_ccb->peer_cfg.fcr.mode == L2CAP_FCR_ERTM_MODE) |
| 1062 | l2c_fcr_proc_tout (p_ccb); |
| 1063 | break; |
| 1064 | |
| 1065 | case L2CEVT_ACK_TIMEOUT: |
| 1066 | l2c_fcr_proc_ack_tout (p_ccb); |
| 1067 | break; |
| 1068 | } |
| 1069 | } |
| 1070 | |
| 1071 | |
| 1072 | /******************************************************************************* |
| 1073 | ** |
| 1074 | ** Function l2c_csm_w4_l2cap_disconnect_rsp |
| 1075 | ** |
| 1076 | ** Description This function handles events when the channel is in |
| 1077 | ** CST_W4_L2CAP_DISCONNECT_RSP state. |
| 1078 | ** |
| 1079 | ** Returns void |
| 1080 | ** |
| 1081 | *******************************************************************************/ |
| 1082 | static void l2c_csm_w4_l2cap_disconnect_rsp (tL2C_CCB *p_ccb, UINT16 event, void *p_data) |
| 1083 | { |
| 1084 | tL2CA_DISCONNECT_CFM_CB *disconnect_cfm = p_ccb->p_rcb->api.pL2CA_DisconnectCfm_Cb; |
| 1085 | UINT16 local_cid = p_ccb->local_cid; |
| 1086 | |
| 1087 | #if (BT_TRACE_VERBOSE == TRUE) |
Sharvil Nanavati | a51c9d9 | 2014-05-04 01:08:21 -0700 | [diff] [blame] | 1088 | L2CAP_TRACE_EVENT ("L2CAP - LCID: 0x%04x st: W4_L2CAP_DISC_RSP evt: %s", p_ccb->local_cid, l2c_csm_get_event_name (event)); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 1089 | #else |
Sharvil Nanavati | a51c9d9 | 2014-05-04 01:08:21 -0700 | [diff] [blame] | 1090 | L2CAP_TRACE_EVENT ("L2CAP - st: W4_L2CAP_DISC_RSP evt: %d", event); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 1091 | #endif |
| 1092 | |
| 1093 | switch (event) |
| 1094 | { |
| 1095 | case L2CEVT_L2CAP_DISCONNECT_RSP: /* Peer disconnect response */ |
| 1096 | l2cu_release_ccb (p_ccb); |
| 1097 | if (disconnect_cfm) |
| 1098 | { |
Sharvil Nanavati | a51c9d9 | 2014-05-04 01:08:21 -0700 | [diff] [blame] | 1099 | L2CAP_TRACE_API ("L2CAP - Calling DisconnectCfm_Cb(), CID: 0x%04x", local_cid); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 1100 | (*disconnect_cfm)(local_cid, L2CAP_DISC_OK); |
| 1101 | } |
| 1102 | break; |
| 1103 | |
| 1104 | case L2CEVT_L2CAP_DISCONNECT_REQ: /* Peer disconnect request */ |
| 1105 | l2cu_send_peer_disc_rsp (p_ccb->p_lcb, p_ccb->remote_id, p_ccb->local_cid, p_ccb->remote_cid); |
| 1106 | l2cu_release_ccb (p_ccb); |
| 1107 | if (disconnect_cfm) |
| 1108 | { |
Sharvil Nanavati | a51c9d9 | 2014-05-04 01:08:21 -0700 | [diff] [blame] | 1109 | L2CAP_TRACE_API ("L2CAP - Calling DisconnectCfm_Cb(), CID: 0x%04x", local_cid); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 1110 | (*disconnect_cfm)(local_cid, L2CAP_DISC_OK); |
| 1111 | } |
| 1112 | break; |
| 1113 | |
| 1114 | case L2CEVT_LP_DISCONNECT_IND: /* Link was disconnected */ |
| 1115 | case L2CEVT_TIMEOUT: /* Timeout */ |
| 1116 | l2cu_release_ccb (p_ccb); |
| 1117 | if (disconnect_cfm) |
| 1118 | { |
Sharvil Nanavati | a51c9d9 | 2014-05-04 01:08:21 -0700 | [diff] [blame] | 1119 | L2CAP_TRACE_API ("L2CAP - Calling DisconnectCfm_Cb(), CID: 0x%04x", local_cid); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 1120 | (*disconnect_cfm)(local_cid, L2CAP_DISC_TIMEOUT); |
| 1121 | } |
| 1122 | break; |
| 1123 | |
| 1124 | case L2CEVT_L2CAP_DATA: /* Peer data packet rcvd */ |
| 1125 | case L2CEVT_L2CA_DATA_WRITE: /* Upper layer data to send */ |
| 1126 | GKI_freebuf (p_data); |
| 1127 | break; |
| 1128 | } |
| 1129 | } |
| 1130 | |
| 1131 | |
| 1132 | /******************************************************************************* |
| 1133 | ** |
| 1134 | ** Function l2c_csm_w4_l2ca_disconnect_rsp |
| 1135 | ** |
| 1136 | ** Description This function handles events when the channel is in |
| 1137 | ** CST_W4_L2CA_DISCONNECT_RSP state. |
| 1138 | ** |
| 1139 | ** Returns void |
| 1140 | ** |
| 1141 | *******************************************************************************/ |
| 1142 | static void l2c_csm_w4_l2ca_disconnect_rsp (tL2C_CCB *p_ccb, UINT16 event, void *p_data) |
| 1143 | { |
| 1144 | tL2CA_DISCONNECT_IND_CB *disconnect_ind = p_ccb->p_rcb->api.pL2CA_DisconnectInd_Cb; |
| 1145 | UINT16 local_cid = p_ccb->local_cid; |
| 1146 | |
| 1147 | #if (BT_TRACE_VERBOSE == TRUE) |
Sharvil Nanavati | a51c9d9 | 2014-05-04 01:08:21 -0700 | [diff] [blame] | 1148 | L2CAP_TRACE_EVENT ("L2CAP - LCID: 0x%04x st: W4_L2CA_DISC_RSP evt: %s", p_ccb->local_cid, l2c_csm_get_event_name (event)); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 1149 | #else |
Sharvil Nanavati | a51c9d9 | 2014-05-04 01:08:21 -0700 | [diff] [blame] | 1150 | L2CAP_TRACE_EVENT ("L2CAP - st: W4_L2CA_DISC_RSP evt: %d", event); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 1151 | #endif |
| 1152 | |
| 1153 | switch (event) |
| 1154 | { |
| 1155 | case L2CEVT_LP_DISCONNECT_IND: /* Link was disconnected */ |
Sharvil Nanavati | a51c9d9 | 2014-05-04 01:08:21 -0700 | [diff] [blame] | 1156 | L2CAP_TRACE_API ("L2CAP - Calling Disconnect_Ind_Cb(), CID: 0x%04x No Conf Needed", p_ccb->local_cid); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 1157 | l2cu_release_ccb (p_ccb); |
| 1158 | (*disconnect_ind)(local_cid, FALSE); |
| 1159 | break; |
| 1160 | |
| 1161 | case L2CEVT_TIMEOUT: |
| 1162 | l2cu_send_peer_disc_rsp (p_ccb->p_lcb, p_ccb->remote_id, p_ccb->local_cid, p_ccb->remote_cid); |
Sharvil Nanavati | a51c9d9 | 2014-05-04 01:08:21 -0700 | [diff] [blame] | 1163 | L2CAP_TRACE_API ("L2CAP - Calling Disconnect_Ind_Cb(), CID: 0x%04x No Conf Needed", p_ccb->local_cid); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 1164 | l2cu_release_ccb (p_ccb); |
| 1165 | (*disconnect_ind)(local_cid, FALSE); |
| 1166 | break; |
| 1167 | |
| 1168 | case L2CEVT_L2CA_DISCONNECT_REQ: /* Upper disconnect request */ |
| 1169 | case L2CEVT_L2CA_DISCONNECT_RSP: /* Upper disconnect response */ |
| 1170 | l2cu_send_peer_disc_rsp (p_ccb->p_lcb, p_ccb->remote_id, p_ccb->local_cid, p_ccb->remote_cid); |
| 1171 | l2cu_release_ccb (p_ccb); |
| 1172 | break; |
| 1173 | |
| 1174 | case L2CEVT_L2CAP_DATA: /* Peer data packet rcvd */ |
| 1175 | case L2CEVT_L2CA_DATA_WRITE: /* Upper layer data to send */ |
| 1176 | GKI_freebuf (p_data); |
| 1177 | break; |
| 1178 | } |
| 1179 | } |
| 1180 | |
| 1181 | |
| 1182 | #if (BT_TRACE_VERBOSE == TRUE) |
| 1183 | /******************************************************************************* |
| 1184 | ** |
| 1185 | ** Function l2c_csm_get_event_name |
| 1186 | ** |
| 1187 | ** Description This function returns the event name. |
| 1188 | ** |
| 1189 | ** NOTE conditionally compiled to save memory. |
| 1190 | ** |
| 1191 | ** Returns pointer to the name |
| 1192 | ** |
| 1193 | *******************************************************************************/ |
| 1194 | static char *l2c_csm_get_event_name (UINT16 event) |
| 1195 | { |
| 1196 | switch (event) |
| 1197 | { |
| 1198 | case L2CEVT_LP_CONNECT_CFM: /* Lower layer connect confirm */ |
| 1199 | return ("LOWER_LAYER_CONNECT_CFM"); |
| 1200 | case L2CEVT_LP_CONNECT_CFM_NEG: /* Lower layer connect confirm (failed) */ |
| 1201 | return ("LOWER_LAYER_CONNECT_CFM_NEG"); |
| 1202 | case L2CEVT_LP_CONNECT_IND: /* Lower layer connect indication */ |
| 1203 | return ("LOWER_LAYER_CONNECT_IND"); |
| 1204 | case L2CEVT_LP_DISCONNECT_IND: /* Lower layer disconnect indication */ |
| 1205 | return ("LOWER_LAYER_DISCONNECT_IND"); |
| 1206 | case L2CEVT_LP_QOS_CFM: /* Lower layer QOS confirmation */ |
| 1207 | return ("LOWER_LAYER_QOS_CFM"); |
| 1208 | case L2CEVT_LP_QOS_CFM_NEG: /* Lower layer QOS confirmation (failed)*/ |
| 1209 | return ("LOWER_LAYER_QOS_CFM_NEG"); |
| 1210 | case L2CEVT_LP_QOS_VIOLATION_IND: /* Lower layer QOS violation indication */ |
| 1211 | return ("LOWER_LAYER_QOS_VIOLATION_IND"); |
| 1212 | |
| 1213 | case L2CEVT_SEC_COMP: /* Security cleared successfully */ |
| 1214 | return ("SECURITY_COMPLETE"); |
| 1215 | case L2CEVT_SEC_COMP_NEG: /* Security procedure failed */ |
| 1216 | return ("SECURITY_COMPLETE_NEG"); |
| 1217 | |
| 1218 | case L2CEVT_L2CAP_CONNECT_REQ: /* Peer connection request */ |
| 1219 | return ("PEER_CONNECT_REQ"); |
| 1220 | case L2CEVT_L2CAP_CONNECT_RSP: /* Peer connection response */ |
| 1221 | return ("PEER_CONNECT_RSP"); |
| 1222 | case L2CEVT_L2CAP_CONNECT_RSP_PND: /* Peer connection response pending */ |
| 1223 | return ("PEER_CONNECT_RSP_PND"); |
| 1224 | case L2CEVT_L2CAP_CONNECT_RSP_NEG: /* Peer connection response (failed) */ |
| 1225 | return ("PEER_CONNECT_RSP_NEG"); |
| 1226 | case L2CEVT_L2CAP_CONFIG_REQ: /* Peer configuration request */ |
| 1227 | return ("PEER_CONFIG_REQ"); |
| 1228 | case L2CEVT_L2CAP_CONFIG_RSP: /* Peer configuration response */ |
| 1229 | return ("PEER_CONFIG_RSP"); |
| 1230 | case L2CEVT_L2CAP_CONFIG_RSP_NEG: /* Peer configuration response (failed) */ |
| 1231 | return ("PEER_CONFIG_RSP_NEG"); |
| 1232 | case L2CEVT_L2CAP_DISCONNECT_REQ: /* Peer disconnect request */ |
| 1233 | return ("PEER_DISCONNECT_REQ"); |
| 1234 | case L2CEVT_L2CAP_DISCONNECT_RSP: /* Peer disconnect response */ |
| 1235 | return ("PEER_DISCONNECT_RSP"); |
| 1236 | case L2CEVT_L2CAP_DATA: /* Peer data */ |
| 1237 | return ("PEER_DATA"); |
| 1238 | |
| 1239 | case L2CEVT_L2CA_CONNECT_REQ: /* Upper layer connect request */ |
| 1240 | return ("UPPER_LAYER_CONNECT_REQ"); |
| 1241 | case L2CEVT_L2CA_CONNECT_RSP: /* Upper layer connect response */ |
| 1242 | return ("UPPER_LAYER_CONNECT_RSP"); |
| 1243 | case L2CEVT_L2CA_CONNECT_RSP_NEG: /* Upper layer connect response (failed)*/ |
| 1244 | return ("UPPER_LAYER_CONNECT_RSP_NEG"); |
| 1245 | case L2CEVT_L2CA_CONFIG_REQ: /* Upper layer config request */ |
| 1246 | return ("UPPER_LAYER_CONFIG_REQ"); |
| 1247 | case L2CEVT_L2CA_CONFIG_RSP: /* Upper layer config response */ |
| 1248 | return ("UPPER_LAYER_CONFIG_RSP"); |
| 1249 | case L2CEVT_L2CA_CONFIG_RSP_NEG: /* Upper layer config response (failed) */ |
| 1250 | return ("UPPER_LAYER_CONFIG_RSP_NEG"); |
| 1251 | case L2CEVT_L2CA_DISCONNECT_REQ: /* Upper layer disconnect request */ |
| 1252 | return ("UPPER_LAYER_DISCONNECT_REQ"); |
| 1253 | case L2CEVT_L2CA_DISCONNECT_RSP: /* Upper layer disconnect response */ |
| 1254 | return ("UPPER_LAYER_DISCONNECT_RSP"); |
| 1255 | case L2CEVT_L2CA_DATA_READ: /* Upper layer data read */ |
| 1256 | return ("UPPER_LAYER_DATA_READ"); |
| 1257 | case L2CEVT_L2CA_DATA_WRITE: /* Upper layer data write */ |
| 1258 | return ("UPPER_LAYER_DATA_WRITE"); |
| 1259 | case L2CEVT_TIMEOUT: /* Timeout */ |
| 1260 | return ("TIMEOUT"); |
| 1261 | case L2CEVT_SEC_RE_SEND_CMD: |
| 1262 | return ("SEC_RE_SEND_CMD"); |
| 1263 | case L2CEVT_L2CAP_INFO_RSP: /* Peer information response */ |
| 1264 | return ("L2CEVT_L2CAP_INFO_RSP"); |
| 1265 | case L2CEVT_ACK_TIMEOUT: |
| 1266 | return ("L2CEVT_ACK_TIMEOUT"); |
| 1267 | |
| 1268 | default: |
| 1269 | return ("???? UNKNOWN EVENT"); |
| 1270 | } |
| 1271 | } |
| 1272 | #endif /* (BT_TRACE_VERBOSE == TRUE) */ |
| 1273 | |
| 1274 | |
| 1275 | /******************************************************************************* |
| 1276 | ** |
| 1277 | ** Function l2c_enqueue_peer_data |
| 1278 | ** |
| 1279 | ** Description Enqueues data destined for the peer in the ccb. Handles |
| 1280 | ** FCR segmentation and checks for congestion. |
| 1281 | ** |
| 1282 | ** Returns void |
| 1283 | ** |
| 1284 | *******************************************************************************/ |
| 1285 | void l2c_enqueue_peer_data (tL2C_CCB *p_ccb, BT_HDR *p_buf) |
| 1286 | { |
| 1287 | UINT8 *p; |
| 1288 | |
| 1289 | if (p_ccb->peer_cfg.fcr.mode != L2CAP_FCR_BASIC_MODE) |
| 1290 | { |
| 1291 | p_buf->event = 0; |
| 1292 | } |
| 1293 | else |
| 1294 | { |
| 1295 | /* Save the channel ID for faster counting */ |
| 1296 | p_buf->event = p_ccb->local_cid; |
| 1297 | |
| 1298 | /* Step back to add the L2CAP header */ |
| 1299 | p_buf->offset -= L2CAP_PKT_OVERHEAD; |
| 1300 | p_buf->len += L2CAP_PKT_OVERHEAD; |
| 1301 | |
| 1302 | /* Set the pointer to the beginning of the data */ |
| 1303 | p = (UINT8 *)(p_buf + 1) + p_buf->offset; |
| 1304 | |
| 1305 | /* Now the L2CAP header */ |
| 1306 | UINT16_TO_STREAM (p, p_buf->len - L2CAP_PKT_OVERHEAD); |
| 1307 | UINT16_TO_STREAM (p, p_ccb->remote_cid); |
| 1308 | } |
| 1309 | |
Pavlin Radoslavov | 1a3844f | 2015-09-25 11:21:15 -0700 | [diff] [blame^] | 1310 | fixed_queue_enqueue(p_ccb->xmit_hold_q, p_buf); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 1311 | |
| 1312 | l2cu_check_channel_congestion (p_ccb); |
| 1313 | |
| 1314 | #if (L2CAP_ROUND_ROBIN_CHANNEL_SERVICE == TRUE) |
| 1315 | /* if new packet is higher priority than serving ccb and it is not overrun */ |
| 1316 | if (( p_ccb->p_lcb->rr_pri > p_ccb->ccb_priority ) |
| 1317 | &&( p_ccb->p_lcb->rr_serv[p_ccb->ccb_priority].quota > 0)) |
| 1318 | { |
| 1319 | /* send out higher priority packet */ |
| 1320 | p_ccb->p_lcb->rr_pri = p_ccb->ccb_priority; |
| 1321 | } |
| 1322 | #endif |
| 1323 | |
| 1324 | /* if we are doing a round robin scheduling, set the flag */ |
| 1325 | if (p_ccb->p_lcb->link_xmit_quota == 0) |
| 1326 | l2cb.check_round_robin = TRUE; |
| 1327 | } |
| 1328 | |
| 1329 | |