diff options
Diffstat (limited to 'svc.c')
| -rw-r--r-- | svc.c | 241 |
1 files changed, 241 insertions, 0 deletions
@@ -0,0 +1,241 @@ +/* + * This file is part of Samsung-RIL. + * + * Copyright (C) 2013 Paul Kocialkowski <contact@paulk.fr> + * + * Samsung-RIL is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * Samsung-RIL is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with Samsung-RIL. If not, see <http://www.gnu.org/licenses/>. + */ + +#define LOG_TAG "RIL-SVC" +#include <utils/Log.h> + +#include "samsung-ril.h" +#include "util.h" + +int ril_oem_hook_svc_session_start(void) +{ + if (ril_data.oem_hook_svc_session != NULL) { + LOGE("OEM hook SVC session was already started"); + return -1; + } + + ril_data.oem_hook_svc_session = calloc(1, sizeof(struct ril_oem_hook_svc_session)); + + return 0; +} + +void ril_oem_hook_svc_session_stop(void) +{ + if (ril_data.oem_hook_svc_session == NULL) { + LOGE("OEM hook SVC session was already stopped"); + return; + } + + if (ril_data.oem_hook_svc_session->display_screen != NULL) + free(ril_data.oem_hook_svc_session->display_screen); + + free(ril_data.oem_hook_svc_session); + ril_data.oem_hook_svc_session = NULL; +} + +void ipc_svc_display_screen(struct ipc_message_info *info) +{ + char svc_end_message[] = "Samsung-RIL is asking you to End service mode"; + struct ipc_svc_display_screen_header *header; + struct ipc_svc_display_screen_data *data; + + if (info == NULL || info->data == NULL || info->length < sizeof(header->count)) + return; + + if (ril_data.oem_hook_svc_session == NULL) + goto error; + + header = (struct ipc_svc_display_screen_header *) info->data; + + if (header->count == 0) { + if (ril_data.oem_hook_svc_session->token != RIL_TOKEN_NULL) { + ril_request_complete(ril_data.oem_hook_svc_session->token, RIL_E_SUCCESS, &svc_end_message, sizeof(svc_end_message)); + ril_data.oem_hook_svc_session->token = RIL_TOKEN_NULL; + } + + ril_oem_hook_svc_session_stop(); + + return; + } + + data = (struct ipc_svc_display_screen_data *) ((unsigned char *) info->data + sizeof(struct ipc_svc_display_screen_header)); + + // Invalid responses don't start at index 0 + if (data->index != 0) + return; + + if (ril_data.oem_hook_svc_session->display_screen != NULL) { + free(ril_data.oem_hook_svc_session->display_screen); + ril_data.oem_hook_svc_session->display_screen = NULL; + ril_data.oem_hook_svc_session->display_screen_length = 0; + } + + ril_data.oem_hook_svc_session->display_screen_length = header->count * sizeof(struct ipc_svc_display_screen_data); + ril_data.oem_hook_svc_session->display_screen = malloc(ril_data.oem_hook_svc_session->display_screen_length); + memcpy(ril_data.oem_hook_svc_session->display_screen, data, ril_data.oem_hook_svc_session->display_screen_length); + + if (ril_data.oem_hook_svc_session->token != RIL_TOKEN_NULL) { + ril_request_complete(ril_data.oem_hook_svc_session->token, RIL_E_SUCCESS, ril_data.oem_hook_svc_session->display_screen, ril_data.oem_hook_svc_session->display_screen_length); + + ril_data.oem_hook_svc_session->token = RIL_TOKEN_NULL; + } + + return; + +error: + ril_request_complete(ril_request_get_token(info->aseq), RIL_E_GENERIC_FAILURE, NULL, 0); +} + +void ipc_svc_callback(struct ipc_message_info *info) +{ + struct ipc_gen_phone_res *phone_res; + int rc; + + if (info == NULL || info->data == NULL || info->length < (int) sizeof(struct ipc_gen_phone_res)) + return; + + if (ril_data.oem_hook_svc_session == NULL) + goto error; + + phone_res = (struct ipc_gen_phone_res *) info->data; + + rc = ipc_gen_phone_res_check(phone_res); + if (rc < 0) + goto error; + + if (ril_data.oem_hook_svc_session->token != RIL_TOKEN_NULL) { + LOGE("%s: Another token is waiting", __func__); + goto error; + } + + ril_data.oem_hook_svc_session->token = ril_request_get_token(info->aseq); + + return; + +error: + ril_request_complete(ril_request_get_token(info->aseq), RIL_E_GENERIC_FAILURE, NULL, 0); +} + +void ril_request_oem_hook_raw(RIL_Token token, void *data, int length) +{ + RIL_OEMHookHeader *header; + RIL_OEMHookSvcEnterMode *svc_enter_mode; + RIL_OEMHookSvcEndMode *svc_end_mode; + RIL_OEMHookSvcKey *svc_key; + struct ipc_svc_enter_data svc_enter_data; + struct ipc_svc_end_data svc_end_data; + struct ipc_svc_pro_keycode_data svc_pro_keycode_data; + int svc_length; + int rc; + + if (data == NULL || length < (int) sizeof(RIL_OEMHookHeader)) + goto error; + + header = (RIL_OEMHookHeader *) data; + + // Only SVC is supported + if (header->tag != RIL_OEM_HOOK_TAG_SVC) + goto error; + + svc_length = (header->length & 0xff) << 8 | (header->length & 0xff00) >> 8; + + switch (header->command) { + case RIL_OEM_COMMAND_SVC_ENTER_MODE: + if (svc_length < (int) (sizeof(RIL_OEMHookHeader) + sizeof(RIL_OEMHookSvcEnterMode))) + goto error; + + svc_enter_mode = (RIL_OEMHookSvcEnterMode *) ((unsigned char *) data + sizeof(RIL_OEMHookHeader)); + + if (svc_enter_mode->query) { + if (ril_data.oem_hook_svc_session == NULL) + goto error; + + if (ril_data.oem_hook_svc_session->display_screen != NULL && ril_data.oem_hook_svc_session->display_screen_length > 0) + ril_request_complete(token, RIL_E_SUCCESS, ril_data.oem_hook_svc_session->display_screen, ril_data.oem_hook_svc_session->display_screen_length); + else + goto error; + } else { + rc = ril_oem_hook_svc_session_start(); + if (rc < 0) { + LOGE("%s: Unable to start OEM hook SVC session", __func__); + goto error; + } + + memset(&svc_enter_data, 0, sizeof(svc_enter_data)); + svc_enter_data.mode = svc_enter_mode->mode; + svc_enter_data.type = svc_enter_mode->type; + + if (svc_enter_data.mode == IPC_SVC_MODE_MONITOR) + svc_enter_data.unknown = 0x00; + else + svc_enter_data.unknown = 0x10; + + ipc_gen_phone_res_expect_to_func(ril_request_get_id(token), IPC_SVC_ENTER, ipc_svc_callback); + + ipc_fmt_send(IPC_SVC_ENTER, IPC_TYPE_SET, (unsigned char *) &svc_enter_data, sizeof(svc_enter_data), ril_request_get_id(token)); + } + break; + case RIL_OEM_COMMAND_SVC_END_MODE: + if (svc_length < (int) (sizeof(RIL_OEMHookHeader) + sizeof(RIL_OEMHookSvcEndMode))) + goto error; + + svc_end_mode = (RIL_OEMHookSvcEndMode *) ((unsigned char *) data + sizeof(RIL_OEMHookHeader)); + + ril_oem_hook_svc_session_stop(); + + memset(&svc_end_data, 0, sizeof(svc_end_data)); + svc_end_data.mode = svc_end_mode->mode; + + ipc_gen_phone_res_expect_to_complete(ril_request_get_id(token), IPC_SVC_END); + + ipc_fmt_send(IPC_SVC_END, IPC_TYPE_SET, (unsigned char *) &svc_end_data, sizeof(svc_end_data), ril_request_get_id(token)); + break; + case RIL_OEM_COMMAND_SVC_KEY: + if (svc_length < (int) (sizeof(RIL_OEMHookHeader) + sizeof(RIL_OEMHookSvcKey))) + goto error; + + svc_key = (RIL_OEMHookSvcKey *) ((unsigned char *) data + sizeof(RIL_OEMHookHeader)); + + if (svc_key->query) { + if (ril_data.oem_hook_svc_session == NULL) + goto error; + + if (ril_data.oem_hook_svc_session->display_screen != NULL && ril_data.oem_hook_svc_session->display_screen_length > 0) + ril_request_complete(token, RIL_E_SUCCESS, ril_data.oem_hook_svc_session->display_screen, ril_data.oem_hook_svc_session->display_screen_length); + else + goto error; + } else { + if (ril_data.oem_hook_svc_session == NULL) + goto error; + + memset(&svc_pro_keycode_data, 0, sizeof(svc_pro_keycode_data)); + svc_pro_keycode_data.key = svc_key->key; + + ipc_gen_phone_res_expect_to_func(ril_request_get_id(token), IPC_SVC_PRO_KEYCODE, ipc_svc_callback); + + ipc_fmt_send(IPC_SVC_PRO_KEYCODE, IPC_TYPE_SET, (unsigned char *) &svc_pro_keycode_data, sizeof(svc_pro_keycode_data), ril_request_get_id(token)); + } + break; + } + + return; + +error: + ril_request_complete(token, RIL_E_GENERIC_FAILURE, NULL, 0); +} |