Specify widevine/media_cas_packager_sdk/presubmit in media_cas_packager_sdk METADATA file.
------------- Moves ecm_generator to media_cas_packager_sdk/internal. ------------- Add a simple TCP server listening on a port. My intention is to use this server to support the Simulcrypt APIs (TODO). Also add a simple TCP client binary for testing the server and also demo how to call the Simulcrypt APIs (TODO). ------------- If only a single key is in the ECM, it is the EVEN key. To make the code matches this understanding, change a parameter from 'false' to 'true'. But this change has NO impact on the produced ECM, regardless this parameter is 'false' or 'true' (i.e., whether using push_front or push_back), only a single key is in the ECM. ------------- Add classes that process Simulcrypt ECMG messages 1) Stream_set-up 2) CW_provision ------------- Renames server and client binaries. ------------- Make ecmg call ecm_generator to generate ecm. The return of the ecm to Simulcrypt caller will be implemented in the next CL. For now, using the 'key' (control word) in CW_provision message also as the 'key_id'. ------------- Move common folder ------------- Created by MOE: https://github.com/google/moe MOE_MIGRATED_REVID=217358698
This commit is contained in:
Fang Yu
39
example/BUILD
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39
example/BUILD
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################################################################################
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# Copyright 2018 Google LLC.
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#
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# This software is licensed under the terms defined in the Widevine Master
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# License Agreement. For a copy of this agreement, please contact
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# widevine-licensing@google.com.
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################################################################################
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# Build file for the example code.
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package(
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default_visibility = ["//visibility:public"],
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)
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filegroup(
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name = "binary_release_files",
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srcs = [
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"simulcrypt_client.cc",
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"test_simulcrypt_messages.h",
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":simulcrypt_client",
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],
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)
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cc_binary(
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name = "simulcrypt_client",
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srcs = ["simulcrypt_client.cc"],
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deps = [
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"//base",
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],
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)
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cc_library(
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name = "test_simulcrypt_messages",
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hdrs = ["test_simulcrypt_messages.h"],
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deps = [
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"//base",
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],
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)
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80
example/simulcrypt_client.cc
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80
example/simulcrypt_client.cc
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////////////////////////////////////////////////////////////////////////////////
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// Copyright 2018 Google LLC.
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//
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// This software is licensed under the terms defined in the Widevine Master
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// License Agreement. For a copy of this agreement, please contact
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// widevine-licensing@google.com.
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////////////////////////////////////////////////////////////////////////////////
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// Example client that talks to server_main.
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#include <errno.h>
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#include <netdb.h>
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#include <netinet/in.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/socket.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include "gflags/gflags.h"
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#include "glog/logging.h"
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DEFINE_string(server, "", "Server host name");
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DEFINE_int32(port, 0, "Server port number");
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constexpr uint32_t kBufferSize = 256;
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int main(int argc, char **argv) {
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gflags::ParseCommandLineFlags(&argc, &argv, true);
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CHECK(!FLAGS_server.empty()) << "need --server";
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CHECK(FLAGS_port != 0) << "need --port";
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struct hostent server;
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{
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int buflen = 1024;
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char buf[1024];
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struct hostent *result;
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int h_errnop;
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gethostbyname_r(/* __name= */ FLAGS_server.c_str(),
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/* __result_buf= */ &server, /* __buf= */ buf,
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/* __buflen= */ buflen,
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/* __result= */ &result, /* __h_errnop= */ &h_errnop);
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}
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struct sockaddr_in server_addr;
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bzero(reinterpret_cast<char *>(&server_addr), sizeof(server_addr));
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server_addr.sin_family = AF_INET;
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// TODO(user): Consider using inet_pton() to populate server_addr.sin_addr.
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bcopy(server.h_addr, reinterpret_cast<char *>(&server_addr.sin_addr.s_addr),
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server.h_length);
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server_addr.sin_port = htons(FLAGS_port);
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int socket_fd = socket(AF_INET, SOCK_STREAM, /* protocol= */ 0);
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CHECK(socket_fd >= 0) << "failed to opening socket";
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CHECK(connect(socket_fd, (struct sockaddr *)&server_addr,
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sizeof(server_addr)) >= 0)
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<< "failed to connect to socket";
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printf("Please enter the message: ");
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char buffer[kBufferSize];
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bzero(buffer, kBufferSize);
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fgets(buffer, kBufferSize - 1, stdin);
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int total_bytes_written = 0;
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while (total_bytes_written != strlen(buffer)) {
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int num_bytes_written = write(socket_fd, buffer, strlen(buffer));
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if (num_bytes_written < 0) {
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LOG(FATAL) << "ERROR writing to socket: " << strerror(errno);
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}
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total_bytes_written += num_bytes_written;
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}
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bzero(buffer, kBufferSize);
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if (read(socket_fd, buffer, kBufferSize - 1) < 0) {
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LOG(FATAL) << "ERROR reading from socket: " << strerror(errno);
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}
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printf("Read from buffer: %s\n", buffer);
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close(socket_fd);
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return 0;
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}
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166
example/test_simulcrypt_messages.h
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166
example/test_simulcrypt_messages.h
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////////////////////////////////////////////////////////////////////////////////
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// Copyright 2018 Google LLC.
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//
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// This software is licensed under the terms defined in the Widevine Master
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// License Agreement. For a copy of this agreement, please contact
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// widevine-licensing@google.com.
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////////////////////////////////////////////////////////////////////////////////
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// Example Simulcrypt messages used in unit tests and example client.
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#ifndef MEDIA_CAS_PACKAGER_SDK_EXAMPLE_TEST_SIMULCRYPT_MESSAGES_H_
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#define MEDIA_CAS_PACKAGER_SDK_EXAMPLE_TEST_SIMULCRYPT_MESSAGES_H_
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namespace widevine {
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namespace cas {
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const char kTestEcmgStreamSetupMessage[] = { // protocol_version
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'\x01',
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// message_type - Stream_set-up
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'\x01', '\x01',
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// message_length
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// 18 bytes below, 3 parameters 6 bytes each
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'\x00', '\x12',
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// parameter_type - ECM_channel_id
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'\x00', '\x0e',
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// parameter_length
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'\x00', '\x02',
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// parameter_value
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'\x00', '\x01',
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// parameter_type - ECM_stream_id
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'\x00', '\x0f',
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// parameter_length
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'\x00', '\x02',
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// parameter_value
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'\x00', '\x02',
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// parameter_type - nominal_CP_duration
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'\x00', '\x10',
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// parameter_length
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'\x00', '\x02',
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// parameter_value
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'\x00', '\x03'};
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const char kTestEcmgCwProvisionMessageWithOneCw[] = {
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// protocol_version
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'\x01',
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// message_type - CW_provision
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'\x02', '\x01',
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// message_length
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// 64 bytes below, 3 * 6 + 8 + 10 + 1 * 22 + 6
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'\x00', '\x40',
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// parameter_type - ECM_channel_id
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'\x00', '\x0e',
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// parameter_length
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'\x00', '\x02',
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// parameter_value
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'\x00', '\x01',
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// parameter_type - ECM_stream_id
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'\x00', '\x0f',
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// parameter_length
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'\x00', '\x02',
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// parameter_value
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'\x00', '\x02',
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// parameter_type - CP_number
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'\x00', '\x12',
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// parameter_length
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'\x00', '\x02',
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// parameter_value
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'\x00', '\xa1',
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// parameter_type - access_criteria
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'\x00', '\x0d',
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// parameter_length
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'\x00', '\x04',
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// parameter_value
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'\x00', '\x00', '\x00', '\x00',
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// parameter_type - CW_encryption
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'\x00', '\x18',
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// parameter_length
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'\x00', '\x06',
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// parameter_value
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'\x00', '\x00', '\x00', '\x00', '\x00', '\x00',
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// parameter_type - CP_CW_combination
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'\x00', '\x14',
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// parameter_length - 2 + 16
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'\x00', '\x12',
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// parameter_value - CP then CW
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// CP
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'\x00', '\xa1',
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// CW (16 bytes)
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'\x11', '\x11', '\x11', '\x11', '\x11', '\x11', '\x11', '\x11', '\x11',
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'\x11', '\x11', '\x11', '\x11', '\x11', '\x11', '\x11',
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// parameter_type - CP_duration
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'\x00', '\x13',
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// parameter_length
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'\x00', '\x02',
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// parameter_value
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'\x00', '\x0a'};
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const char kTestEcmgCwProvisionMessageWithTwoCw[] = {
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// protocol_version
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'\x01',
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// message_type - CW_provision
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'\x02', '\x01',
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// message_length
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// 86 bytes below, 3 * 6 + 8 + 10 + 2 * 22 + 6
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'\x00', '\x56',
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// parameter_type - ECM_channel_id
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'\x00', '\x0e',
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// parameter_length
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'\x00', '\x02',
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// parameter_value
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'\x00', '\x01',
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// parameter_type - ECM_stream_id
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'\x00', '\x0f',
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// parameter_length
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'\x00', '\x02',
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// parameter_value
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'\x00', '\x02',
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// parameter_type - CP_number
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'\x00', '\x12',
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// parameter_length
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'\x00', '\x02',
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// parameter_value
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'\x00', '\xa1',
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// parameter_type - access_criteria
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'\x00', '\x0d',
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// parameter_length
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'\x00', '\x04',
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// parameter_value
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'\x00', '\x00', '\x00', '\x00',
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// parameter_type - CW_encryption
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'\x00', '\x18',
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// parameter_length
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'\x00', '\x06',
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// parameter_value
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'\x00', '\x00', '\x00', '\x00', '\x00', '\x00',
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// parameter_type - CP_CW_combination
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'\x00', '\x14',
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// parameter_length - 2 + 16
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'\x00', '\x12',
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// parameter_value - CP then CW
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// CP
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'\x00', '\xa1',
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// CW (16 bytes)
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'\x11', '\x11', '\x11', '\x11', '\x11', '\x11', '\x11', '\x11', '\x11',
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'\x11', '\x11', '\x11', '\x11', '\x11', '\x11', '\x11',
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// parameter_type - CP_CW_combination
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'\x00', '\x14',
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// parameter_length - 2 + 16
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'\x00', '\x12',
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// parameter_value - CP then CW
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// CP
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'\x00', '\xa2',
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// CW (16 bytes)
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'\x22', '\x22', '\x22', '\x22', '\x22', '\x22', '\x22', '\x22', '\x22',
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'\x22', '\x22', '\x22', '\x22', '\x22', '\x22', '\x22',
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// parameter_type - CP_duration
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'\x00', '\x13',
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// parameter_length
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'\x00', '\x02',
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// parameter_value
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'\x00', '\x0a'};
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} // namespace cas
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} // namespace widevine
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#endif // MEDIA_CAS_PACKAGER_SDK_EXAMPLE_TEST_SIMULCRYPT_MESSAGES_H_
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Reference in New Issue
Block a user