Samsung-RIL rewrite: harder, better, probably not faster but definitely stronger

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>

1 files changed, 238 insertions, 0 deletions

diff --git a/oem.c b/oem.c
new file mode 100644
index 0000000..a5781c0
--- /dev/null
+++ b/oem.c
@@ -0,0 +1,238 @@
+/*
+ * This file is part of Samsung-RIL.
+ *
+ * Copyright (C) 2013-2014 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/>.
+ */
+
+#include <stdlib.h>
+
+#define LOG_TAG "RIL"
+#include <utils/Log.h>
+
+#include <samsung-ril.h>
+#include <ril_oem.h>
+
+int ipc_svc_display_screen(struct ipc_message *message)
+{
+	struct ipc_svc_display_screen_entry *entry;
+	char svc_end_message[34] = "  End service mode";
+	struct ril_client *client;
+	struct ipc_fmt_data *ipc_fmt_data;
+	struct ril_request *request;
+	void *screen_data = NULL;
+	size_t screen_size = 0;
+	unsigned char count;
+	int rc;
+
+	if (message == NULL || message->data == NULL || message->size < sizeof(struct ipc_svc_display_screen_header))
+		return -1;
+
+	client = ril_client_find_id(RIL_CLIENT_IPC_FMT);
+	if (client == NULL || client->data == NULL)
+		return 0;
+
+	rc = ril_radio_state_check(RADIO_STATE_SIM_NOT_READY);
+	if (rc < 0)
+		return 0;
+
+	ipc_fmt_data = (struct ipc_fmt_data *) client->data;
+
+	count = ipc_svc_display_screen_count_extract(message->data, message->size);
+
+	if (count > 0) {
+		if (!ipc_fmt_data->svc_session)
+			ipc_fmt_data->svc_session = 1;
+
+		entry = ipc_svc_display_screen_extract(message->data, message->size, 0);
+		if (entry == NULL)
+			goto error;
+
+		// Invalid messages have bogus first entry index
+		if (entry->index != 0)
+			goto complete;
+
+		screen_size = count * sizeof(struct ipc_svc_display_screen_entry);
+		screen_data = (void *) entry;
+	} else {
+		if (ipc_fmt_data->svc_session)
+			ipc_fmt_data->svc_session = 0;
+
+		ril_request_data_free(RIL_REQUEST_OEM_HOOK_RAW);
+
+		screen_size = sizeof(svc_end_message);
+		screen_data = (void *) &svc_end_message;
+	}
+
+	request = ril_request_find_request_status(RIL_REQUEST_OEM_HOOK_RAW, RIL_REQUEST_HANDLED);
+	if (request != NULL)
+		ril_request_complete(request->token, RIL_E_SUCCESS, screen_data, screen_size);
+	else
+		ril_request_data_set_uniq(RIL_REQUEST_OEM_HOOK_RAW, screen_data, screen_size);
+
+	goto complete;
+
+error:
+	request = ril_request_find_request_status(RIL_REQUEST_OEM_HOOK_RAW, RIL_REQUEST_HANDLED);
+	if (request != NULL)
+		ril_request_complete(request->token, RIL_E_GENERIC_FAILURE, NULL, 0);
+
+complete:
+	return 0;
+}
+
+int ril_request_oem_hook_raw(void *data, size_t size, RIL_Token token)
+{
+	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;
+	RIL_OEMHookHeader *header;
+	RIL_OEMHookSvcEnterMode *svc_enter_mode;
+	RIL_OEMHookSvcEndMode *svc_end_mode;
+	RIL_OEMHookSvcKey *svc_key;
+	struct ril_client *client;
+	struct ipc_fmt_data *ipc_fmt_data;
+	struct ril_request *request;
+	void *screen_data = NULL;
+	size_t screen_size = 0;
+	unsigned int length;
+	int rc;
+
+	if (data == NULL || size < sizeof(RIL_OEMHookHeader))
+		goto error;
+
+	client = ril_client_find_id(RIL_CLIENT_IPC_FMT);
+	if (client == NULL || client->data == NULL)
+		goto error;
+
+	rc = ril_radio_state_check(RADIO_STATE_SIM_NOT_READY);
+	if (rc < 0)
+		return RIL_REQUEST_UNHANDLED;
+
+	request = ril_request_find_request_status(RIL_REQUEST_OEM_HOOK_RAW, RIL_REQUEST_HANDLED);
+	if (request != NULL)
+		return RIL_REQUEST_UNHANDLED;
+
+	ipc_fmt_data = (struct ipc_fmt_data *) client->data;
+
+	header = (RIL_OEMHookHeader *) data;
+
+	// Only SVC is supported
+	if (header->tag != RIL_OEM_HOOK_TAG_SVC)
+		goto error;
+
+	length = size - sizeof(RIL_OEMHookHeader);
+
+	switch (header->command) {
+		case RIL_OEM_COMMAND_SVC_ENTER_MODE:
+			if (length < sizeof(RIL_OEMHookSvcEnterMode))
+				goto error;
+
+			svc_enter_mode = (RIL_OEMHookSvcEnterMode *) ((unsigned char *) data + sizeof(RIL_OEMHookHeader));
+
+			if (svc_enter_mode->query) {
+				screen_size = ril_request_data_size_get(RIL_REQUEST_OEM_HOOK_RAW);
+				screen_data = ril_request_data_get(RIL_REQUEST_OEM_HOOK_RAW);
+
+				ril_request_complete(token, RIL_E_SUCCESS, screen_data, screen_size);
+
+				rc = RIL_REQUEST_COMPLETED;
+				goto complete;
+			} else {
+				rc = ipc_svc_enter_setup(&svc_enter_data, svc_enter_mode->mode, svc_enter_mode->type);
+				if (rc < 0)
+					goto error;
+
+				rc = ipc_gen_phone_res_expect_abort(ipc_fmt_request_seq(token), IPC_SVC_ENTER);
+				if (rc < 0)
+					goto error;
+
+				rc = ipc_fmt_send(ipc_fmt_request_seq(token), IPC_SVC_ENTER, IPC_TYPE_SET, (void *) &svc_enter_data, sizeof(svc_enter_data));
+				if (rc < 0)
+					goto error;
+			}
+			break;
+		case RIL_OEM_COMMAND_SVC_END_MODE:
+			if (length < sizeof(RIL_OEMHookSvcEndMode))
+				goto error;
+
+			svc_end_mode = (RIL_OEMHookSvcEndMode *) ((unsigned char *) data + sizeof(RIL_OEMHookHeader));
+
+			memset(&svc_end_data, 0, sizeof(svc_end_data));
+			svc_end_data.mode = svc_end_mode->mode;
+
+			rc = ipc_gen_phone_res_expect_complete(ipc_fmt_request_seq(token), IPC_SVC_END);
+			if (rc < 0)
+				goto error;
+
+			rc = ipc_fmt_send(ipc_fmt_request_seq(token), IPC_SVC_END, IPC_TYPE_SET, (void *) &svc_end_data, sizeof(svc_end_data));
+			if (rc < 0)
+				goto error;
+
+			if (ipc_fmt_data->svc_session)
+				ipc_fmt_data->svc_session = 0;
+
+			ril_request_data_free(RIL_REQUEST_OEM_HOOK_RAW);
+			break;
+		case RIL_OEM_COMMAND_SVC_KEY:
+			if (length < sizeof(RIL_OEMHookSvcKey))
+				goto error;
+
+			svc_key = (RIL_OEMHookSvcKey *) ((unsigned char *) data + sizeof(RIL_OEMHookHeader));
+
+			if (svc_key->query) {
+				screen_size = ril_request_data_size_get(RIL_REQUEST_OEM_HOOK_RAW);
+				screen_data = ril_request_data_get(RIL_REQUEST_OEM_HOOK_RAW);
+
+				ril_request_complete(token, RIL_E_SUCCESS, screen_data, screen_size);
+
+				rc = RIL_REQUEST_COMPLETED;
+				goto complete;
+			} else {
+				if (!ipc_fmt_data->svc_session)
+					goto error;
+
+				memset(&svc_pro_keycode_data, 0, sizeof(svc_pro_keycode_data));
+				svc_pro_keycode_data.key = svc_key->key;
+
+				rc = ipc_gen_phone_res_expect_abort(ipc_fmt_request_seq(token), IPC_SVC_PRO_KEYCODE);
+				if (rc < 0)
+					goto error;
+
+				rc = ipc_fmt_send(ipc_fmt_request_seq(token), IPC_SVC_PRO_KEYCODE, IPC_TYPE_SET, (void *) &svc_pro_keycode_data, sizeof(svc_pro_keycode_data));
+				if (rc < 0)
+					goto error;
+			}
+			break;
+		default:
+			goto error;
+	}
+
+	rc = RIL_REQUEST_HANDLED;
+	goto complete;
+
+error:
+	ril_request_data_free(RIL_REQUEST_OEM_HOOK_RAW);
+
+	ril_request_complete(token, RIL_E_GENERIC_FAILURE, NULL, 0);
+
+	rc = RIL_REQUEST_COMPLETED;
+
+complete:
+	if (screen_data != NULL && screen_size > 0)
+		free(screen_data);
+
+	return rc;
+}