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R3ABM Artem 2016-03-23 20:57:51 +04:00
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CronosAgent.c Normal file
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#include <stddef.h>
#include <stdint.h>
#include <stdlib.h>
#include <getopt.h>
#include <string.h>
#include <errno.h>
#include <stdio.h>
#include <netdb.h>
#include <arpa/inet.h>
#include <unistd.h>
#include <signal.h>
#include <sys/time.h>
#include <sys/socket.h>
#include <openssl/sha.h>
#ifdef __linux__
#include <endian.h>
#include <sys/epoll.h>
#include <sys/timerfd.h>
#include <sys/signalfd.h>
#endif
#ifdef __MACH__
#include <sys/event.h>
#include <mach/mach.h>
#include <mach/clock.h>
#include <machine/endian.h>
#endif
#include "Rewind.h"
#include "Version.h"
// #include "ASNTools.h"
#ifndef ASNTOOLS_H
#define ASN_SEQUENCE 0x10
#define ASN_UNIVERSAL 0x00
#define ASN_CONSTRUCTOR 0x20
#endif
// #include "RA-RTP.h"
#ifndef RA_RTP_H
#define RTP_PROTOCOL_VERSION 2
#define RTP_CONTROL_VERSION_SHIFT 6
#define RTP_HEADER_MINIMAL_LENGTH 12
#endif
// #include "RemoteControl.h"
#ifndef REMOTECONTROL_H
#define REMOTE_DEFAULT_PORT 4000
#define REMOTE_STX 0x02
#define REMOTE_ETX 0x03
#endif
#define HELPER(value) #value
#define STRING(value) HELPER(value)
#define COUNT(array) sizeof(array) / sizeof(array[0])
#ifdef __cplusplus
#define CAST(type, value) const_cast<type>(value)
#else
#define CAST(type, value) (type)value
#define bool int
#define true 1
#define false 0
#endif
#ifdef __linux__
#define CHECK(event, handle) (event->data.fd == handle)
#endif
#ifdef __MACH__
#define CHECK(event, handle) (event->ident == handle) && (event->filter == EVFILT_READ)
#define htobe16(value) OSSwapHostToBigInt16(value)
#define be16toh(value) OSSwapBigToHostInt16(value)
#define htobe32(value) OSSwapHostToBigInt32(value)
#define be32toh(value) OSSwapBigToHostInt32(value)
#define htole16(value) OSSwapHostToLittleInt16(value)
#define le16toh(value) OSSwapLittleToHostInt16(value)
#define htole32(value) OSSwapHostToLittleInt32(value)
#define le32toh(value) OSSwapLittleToHostInt32(value)
#endif
#define MEDIA_PORT_COUNT (REWIND_TYPE_ANALOG_DATA - REWIND_TYPE_SLOT_1_VOICE + 1)
#define EVENT_LIST_LENGTH (4 + 1 + 3 + MEDIA_PORT_COUNT)
#define BUFFER_SIZE 4096
#define EXPIRATION_TIME 20
int main(int argc, const char* argv[])
{
printf("\n");
printf("CronosAgent for BrandMeister DMR Master Server\n");
printf("Copyright 2016 Artem Prilutskiy (R3ABM, cyanide.burnout@gmail.com)\n");
printf("\n");
// Parameters of server
const char* serverPort = STRING(REWIND_DEFAULT_PORT);
const char* serverLocation = NULL;
const char* serverPassword = NULL;
struct addrinfo* serverAddress = NULL;
// Parameters of repeater
int proxyTrapPort = 162;
int proxyBasePort = 40000;
uint32_t repeaterNumber = 0;
int repeaterControlPort = REMOTE_DEFAULT_PORT;
struct sockaddr_in repeaterSocketAddress;
repeaterSocketAddress.sin_family = AF_INET;
repeaterSocketAddress.sin_addr.s_addr = htonl(INADDR_ANY);
// Start up
struct option options[] =
{
{ "repeater-number", required_argument, NULL, 'n' },
{ "repeater-address", required_argument, NULL, 'r' },
{ "repeater-port", required_argument, NULL, 'c' },
{ "server-password", required_argument, NULL, 'w' },
{ "server-address", required_argument, NULL, 's' },
{ "server-port", required_argument, NULL, 'p' },
{ "base-port", required_argument, NULL, 'b' },
{ "trap-port", required_argument, NULL, 't' },
{ NULL, 0, NULL, 0 }
};
int selection = 0;
while ((selection = getopt_long(argc, CAST(char* const*, argv), "n:r:c:w:s:p:b:t:", options, NULL)) != EOF)
switch (selection)
{
case 'n':
repeaterNumber = strtol(optarg, NULL, 10);
break;
case 'r':
inet_pton(AF_INET, optarg, &repeaterSocketAddress.sin_addr);
break;
case 'c':
repeaterControlPort = strtol(optarg, NULL, 10);
break;
case 'w':
serverPassword = optarg;
break;
case 's':
serverLocation = optarg;
break;
case 'p':
serverPort = optarg;
break;
case 'b':
proxyBasePort = strtol(optarg, NULL, 10);
break;
case 't':
proxyTrapPort = strtol(optarg, NULL, 10);
break;
}
if ((repeaterNumber == 0) ||
(serverPassword == NULL) ||
(serverLocation == NULL) ||
(repeaterSocketAddress.sin_addr.s_addr == htonl(INADDR_ANY)))
{
printf(
"Usage:\n"
" %s\n"
" --repeater-address <IP address of repeater>\n"
" --repeater-number <Registered ID of repeater>\n"
" --repeater-port <port number of interface Remote Control>\n"
" --server-password <access password of BrandMeister DMR Server>\n"
" --server-address <domain name of BrandMeister DMR Server>\n"
" --server-port <port number of RadioActivity Console>\n"
" --base-port <base port for RTP Media>\n"
" --trap-port <port for SNMP Traps>\n"
"\n",
argv[0]);
return EXIT_FAILURE;
}
// Resolve server address
struct addrinfo hints;
memset(&hints, 0, sizeof(hints));
hints.ai_socktype = SOCK_DGRAM;
#ifdef __linux__
hints.ai_flags = AI_ADDRCONFIG;
hints.ai_family = AF_UNSPEC;
#endif
#ifdef __MACH__
hints.ai_flags = AI_V4MAPPED;
hints.ai_family = AF_INET6;
#endif
if (getaddrinfo(serverLocation, serverPort, &hints, &serverAddress) != 0)
{
printf("Error resolving server address %s\n", serverLocation);
return EXIT_FAILURE;
}
// Initialize proxy sockets
int trapHandle;
int remoteHandle;
int mediaHandles[MEDIA_PORT_COUNT];
struct sockaddr_in proxySocketAddress;
proxySocketAddress.sin_family = AF_INET;
proxySocketAddress.sin_addr.s_addr = htonl(INADDR_ANY);
proxySocketAddress.sin_port = 0;
remoteHandle = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
if((remoteHandle < 0) ||
(bind(remoteHandle, (struct sockaddr*)&proxySocketAddress, sizeof(proxySocketAddress)) < 0))
{
printf("Error opening port for Remote Control\n");
return EXIT_FAILURE;
}
proxySocketAddress.sin_port = htons(proxyTrapPort);
trapHandle = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
if((trapHandle < 0) ||
(bind(trapHandle, (struct sockaddr*)&proxySocketAddress, sizeof(proxySocketAddress)) < 0))
{
printf("Error opening port for SNMP Traps\n");
return EXIT_FAILURE;
}
for (size_t index = 0; index < MEDIA_PORT_COUNT; index ++)
{
proxySocketAddress.sin_port = htons(proxyBasePort + index * 10);
int handle = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
if((handle < 0) ||
(bind(handle, (struct sockaddr*)&proxySocketAddress, sizeof(proxySocketAddress)) < 0))
{
printf("Error opening port for RTP Media\n");
return EXIT_FAILURE;
}
mediaHandles[index] = handle;
}
// Initialize uplink socket
int uplinkHandle;
struct sockaddr_in6 uplinkSocketAddress;
uplinkSocketAddress.sin6_family = AF_INET6;
uplinkSocketAddress.sin6_addr = in6addr_any;
uplinkSocketAddress.sin6_port = 0;
uplinkSocketAddress.sin6_scope_id = 0;
uplinkHandle = socket(AF_INET6, SOCK_DGRAM, IPPROTO_UDP);
if((uplinkHandle < 0) ||
(bind(uplinkHandle, (struct sockaddr*)&uplinkSocketAddress, sizeof(uplinkSocketAddress)) < 0))
{
printf("Error opening port for Rewind Uplink\n");
return EXIT_FAILURE;
}
#ifdef __linux__
// Initialize timer handle
int timerHandle;
struct itimerspec timerInterval;
memset(&timerInterval, 0, sizeof(timerInterval));
timerInterval.it_interval.tv_sec = REWIND_KEEP_ALIVE_INTERVAL;
timerInterval.it_value.tv_sec = REWIND_KEEP_ALIVE_INTERVAL;
timerHandle = timerfd_create(CLOCK_MONOTONIC, 0);
timerfd_settime(timerHandle, 0, &timerInterval, NULL);
// Initialize signal handle
int signalHandle;
sigset_t signalMask;
sigemptyset(&signalMask);
sigaddset(&signalMask, SIGINT);
sigaddset(&signalMask, SIGHUP);
sigaddset(&signalMask, SIGTERM);
sigaddset(&signalMask, SIGQUIT);
sigprocmask(SIG_BLOCK, &signalMask, NULL);
signalHandle = signalfd(-1, &signalMask, 0);
// Initialize ePoll
int pollHandle;
struct epoll_event event;
pollHandle = epoll_create(EVENT_LIST_LENGTH);
for (size_t index = 0; index < MEDIA_PORT_COUNT; index ++)
{
event.events = EPOLLIN;
event.data.fd = mediaHandles[index];
epoll_ctl(pollHandle, EPOLL_CTL_ADD, event.data.fd, &event);
}
event.events = EPOLLIN;
event.data.fd = trapHandle;
epoll_ctl(pollHandle, EPOLL_CTL_ADD, event.data.fd, &event);
event.events = EPOLLIN;
event.data.fd = remoteHandle;
epoll_ctl(pollHandle, EPOLL_CTL_ADD, event.data.fd, &event);
event.events = EPOLLIN;
event.data.fd = uplinkHandle;
epoll_ctl(pollHandle, EPOLL_CTL_ADD, event.data.fd, &event);
event.events = EPOLLIN;
event.data.fd = timerHandle;
epoll_ctl(pollHandle, EPOLL_CTL_ADD, event.data.fd, &event);
event.events = EPOLLIN;
event.data.fd = signalHandle;
epoll_ctl(pollHandle, EPOLL_CTL_ADD, event.data.fd, &event);
// Initialize clock
struct timespec now;
clock_gettime(CLOCK_MONOTONIC, &now);
#endif
#ifdef __MACH__
// Prepare signal handlers
signal(SIGINT, SIG_IGN);
signal(SIGHUP, SIG_IGN);
signal(SIGTERM, SIG_IGN);
signal(SIGQUIT, SIG_IGN);
// Initialize KQueue
int queueHandle;
struct kevent changes[EVENT_LIST_LENGTH];
struct kevent* change = changes;
queueHandle = kqueue();
for (size_t index = 0; index < MEDIA_PORT_COUNT; index ++)
{
EV_SET(change, mediaHandles[index], EVFILT_READ, EV_ADD | EV_ENABLE, 0, 0, 0);
change ++;
}
EV_SET(change, uplinkHandle, EVFILT_READ, EV_ADD | EV_ENABLE, 0, 0, 0);
change ++;
EV_SET(change, remoteHandle, EVFILT_READ, EV_ADD | EV_ENABLE, 0, 0, 0);
change ++;
EV_SET(change, trapHandle, EVFILT_READ, EV_ADD | EV_ENABLE, 0, 0, 0);
change ++;
EV_SET(change, 1, EVFILT_TIMER, EV_ADD | EV_ENABLE, NOTE_SECONDS, REWIND_KEEP_ALIVE_INTERVAL, 0);
change ++;
EV_SET(change, SIGINT, EVFILT_SIGNAL, EV_ADD | EV_ENABLE, 0, 0, 0);
change ++;
EV_SET(change, SIGHUP, EVFILT_SIGNAL, EV_ADD | EV_ENABLE, 0, 0, 0);
change ++;
EV_SET(change, SIGTERM, EVFILT_SIGNAL, EV_ADD | EV_ENABLE, 0, 0, 0);
change ++;
EV_SET(change, SIGQUIT, EVFILT_SIGNAL, EV_ADD | EV_ENABLE, 0, 0, 0);
change ++;
// Initialize clock service
clock_serv_t clockService;
mach_timespec_t now;
host_get_clock_service(mach_host_self(), SYSTEM_CLOCK, &clockService);
clock_get_time(clockService, &now);
#endif
// Prepare uplink buffers
struct RewindData* incomingBuffer = (struct RewindData*)alloca(sizeof(struct RewindData) + BUFFER_SIZE);
struct RewindData* outgoingBuffer = (struct RewindData*)alloca(sizeof(struct RewindData) + BUFFER_SIZE);
memset(outgoingBuffer, 0, sizeof(struct RewindData));
memcpy(outgoingBuffer, REWIND_PROTOCOL_SIGN, REWIND_SIGN_LENGTH);
size_t passwordLength = strlen(serverPassword);
time_t watchDog = now.tv_sec + EXPIRATION_TIME;
uint32_t sequenceNumber = 0;
// Main loop
bool running = true;
printf("Server started\n");
while (running)
{
#ifdef __linux__
struct epoll_event events[EVENT_LIST_LENGTH];
int count = epoll_wait(pollHandle, events, EVENT_LIST_LENGTH, -1);
#endif
#ifdef __MACH__
struct kevent events[EVENT_LIST_LENGTH];
int count = kevent(queueHandle, changes, EVENT_LIST_LENGTH, events, EVENT_LIST_LENGTH, NULL);
#endif
if (count < 0)
{
int error = errno;
printf("Error processing handles: %s (%d)\n", strerror(error), error);
break;
}
for (size_t index = 0; index < count; index ++)
{
#ifdef __linux__
struct epoll_event* event = events + index;
#endif
#ifdef __MACH__
struct kevent* event = events + index;
#endif
// Handle packet from the uplink
if (CHECK(event, uplinkHandle))
{
struct sockaddr_in6 address;
socklen_t size = sizeof(address);
size_t length = recvfrom(uplinkHandle, incomingBuffer, BUFFER_SIZE, 0, (struct sockaddr*)&address, &size);
if ((length >= sizeof(struct RewindData)) &&
((serverAddress->ai_addr->sa_family == AF_INET) || /* Work-around for Linux */
(memcmp(&address, serverAddress->ai_addr, serverAddress->ai_addrlen) == 0)) &&
(memcmp(incomingBuffer->sign, REWIND_PROTOCOL_SIGN, REWIND_SIGN_LENGTH) == 0))
{
uint16_t type = le16toh(incomingBuffer->type);
size_t length = le16toh(incomingBuffer->length);
if ((type >= REWIND_TYPE_SLOT_1_VOICE) &&
(type <= REWIND_TYPE_ANALOG_DATA))
{
size_t index = type - REWIND_TYPE_SLOT_1_VOICE;
repeaterSocketAddress.sin_port = htons(proxyBasePort + index * 10);
sendto(mediaHandles[index], incomingBuffer->data, length, 0, (struct sockaddr*)&repeaterSocketAddress, sizeof(struct sockaddr_in));
continue;
}
if (type == REWIND_TYPE_REMOTE_CONTROL)
{
repeaterSocketAddress.sin_port = htons(repeaterControlPort);
sendto(remoteHandle, incomingBuffer->data, length, 0, (struct sockaddr*)&repeaterSocketAddress, sizeof(struct sockaddr_in));
continue;
}
if (type == REWIND_TYPE_REPORT)
{
incomingBuffer->data[length] = '\0';
printf("Server message: %s\n", incomingBuffer->data);
continue;
}
if (type == REWIND_TYPE_CHALLENGE)
{
printf("Authenticating with agent\n");
memcpy(incomingBuffer->data + length, serverPassword, passwordLength);
SHA256(incomingBuffer->data, length + passwordLength, outgoingBuffer->data);
outgoingBuffer->type = htole16(REWIND_TYPE_AUTHENTICATION);
outgoingBuffer->number = htole32(++ sequenceNumber);
outgoingBuffer->length = htole16(SHA256_DIGEST_LENGTH);
sendto(uplinkHandle, outgoingBuffer, sizeof(struct RewindData) + SHA256_DIGEST_LENGTH, 0, serverAddress->ai_addr, serverAddress->ai_addrlen);
continue;
}
if (type == REWIND_TYPE_KEEP_ALIVE)
{
#ifdef __linux__
clock_gettime(CLOCK_MONOTONIC, &now);
#endif
#ifdef __MACH__
clock_get_time(clockService, &now);
#endif
watchDog = now.tv_sec + EXPIRATION_TIME;
continue;
}
if (type == REWIND_TYPE_CLOSE)
{
printf("Disconnect request received\n");
running = false;
break;
}
}
}
// Handle packet of RTP
for (size_t index = 0; index < MEDIA_PORT_COUNT; index ++)
{
if (CHECK(event, mediaHandles[index]))
{
struct sockaddr_in address;
socklen_t size = sizeof(address);
uint8_t* buffer = (uint8_t*)outgoingBuffer->data;
size_t length = recvfrom(mediaHandles[index], buffer, BUFFER_SIZE, 0, (struct sockaddr*)&address, &size);
if ((size == sizeof(struct sockaddr_in)) &&
(address.sin_addr.s_addr == repeaterSocketAddress.sin_addr.s_addr) &&
((buffer[0] >> RTP_CONTROL_VERSION_SHIFT) == RTP_PROTOCOL_VERSION) &&
(length >= RTP_HEADER_MINIMAL_LENGTH))
{
outgoingBuffer->type = htole16(index + REWIND_TYPE_SLOT_1_VOICE);
outgoingBuffer->number = htole32(++ sequenceNumber);
outgoingBuffer->length = htole16(length);
length += sizeof(struct RewindData);
sendto(uplinkHandle, outgoingBuffer, length, 0, serverAddress->ai_addr, serverAddress->ai_addrlen);
}
break;
}
}
// Handle packet of Remote Control
if (CHECK(event, remoteHandle))
{
struct sockaddr_in address;
socklen_t size = sizeof(address);
uint8_t* buffer = (uint8_t*)outgoingBuffer->data;
size_t length = recvfrom(remoteHandle, buffer, BUFFER_SIZE, 0, (struct sockaddr*)&address, &size);
if ((size == sizeof(struct sockaddr_in)) &&
(address.sin_addr.s_addr == repeaterSocketAddress.sin_addr.s_addr) &&
(buffer[0] == REMOTE_STX) &&
(buffer[length - 1] == REMOTE_ETX) &&
(length >= 8))
{
outgoingBuffer->type = htole16(REWIND_TYPE_REMOTE_CONTROL);
outgoingBuffer->number = htole32(++ sequenceNumber);
outgoingBuffer->length = htole16(length);
length += sizeof(struct RewindData);
sendto(uplinkHandle, outgoingBuffer, length, 0, serverAddress->ai_addr, serverAddress->ai_addrlen);
}
continue;
}
// Handle packet of SNMP Trap
if (CHECK(event, trapHandle))
{
struct sockaddr_in address;
socklen_t size = sizeof(address);
uint8_t* buffer = (uint8_t*)outgoingBuffer->data;
size_t length = recvfrom(trapHandle, buffer, BUFFER_SIZE, 0, (struct sockaddr*)&address, &size);
if ((size == sizeof(struct sockaddr_in)) &&
(address.sin_addr.s_addr == repeaterSocketAddress.sin_addr.s_addr) &&
(buffer[0] == (ASN_UNIVERSAL | ASN_CONSTRUCTOR | ASN_SEQUENCE)) &&
(length >= 20))
{
outgoingBuffer->type = htole16(REWIND_TYPE_SNMP_TRAP);
outgoingBuffer->number = htole32(++ sequenceNumber);
outgoingBuffer->length = htole16(length);
length += sizeof(struct RewindData);
sendto(uplinkHandle, outgoingBuffer, length, 0, serverAddress->ai_addr, serverAddress->ai_addrlen);
}
continue;
}
// Handle timer to transmit keep-alive
#ifdef __linux__
if (event->data.fd == timerHandle)
{
uint64_t information;
read(timerHandle, &information, sizeof(information));
clock_gettime(CLOCK_MONOTONIC, &now);
#endif
#ifdef __MACH__
if (event->filter == EVFILT_TIMER)
{
clock_get_time(clockService, &now);
#endif
if (now.tv_sec > watchDog)
{
printf("Connection time-out expired\n");
running = false;
break;
}
size_t length = sizeof(struct RewindVersionData);
struct RewindVersionData* data = (struct RewindVersionData*)outgoingBuffer->data;
length += sprintf(data->version, "CronosAgent " STRING(VERSION) " " BUILD);
data->number = htole32(repeaterNumber);
outgoingBuffer->type = htole16(REWIND_TYPE_KEEP_ALIVE);
outgoingBuffer->number = htole32(++ sequenceNumber);
outgoingBuffer->length = htobe16(length);
length += sizeof(struct RewindData);
sendto(uplinkHandle, outgoingBuffer, length, 0, serverAddress->ai_addr, serverAddress->ai_addrlen);
continue;
}
// Handle signal from the kernel
#ifdef __linux__
if (event->data.fd == signalHandle)
{
struct signalfd_siginfo information;
read(signalHandle, &information, sizeof(information));
#endif
#ifdef __MACH__
if (event->filter == EVFILT_SIGNAL)
{
#endif
outgoingBuffer->type = htole16(REWIND_TYPE_CLOSE);
outgoingBuffer->number = htole32(++ sequenceNumber);
outgoingBuffer->length = 0;
sendto(uplinkHandle, outgoingBuffer, sizeof(struct RewindData), 0, serverAddress->ai_addr, serverAddress->ai_addrlen);
#ifdef __linux__
if ((information.ssi_signo == SIGINT) ||
(information.ssi_signo == SIGTERM) ||
(information.ssi_signo == SIGQUIT))
#endif
#ifdef __MACH__
if ((event->ident == SIGINT) ||
(event->ident == SIGTERM) ||
(event->ident == SIGQUIT))
#endif
{
running = false;
break;
}
}
}
}
printf("Server stopped\n");
// Clean up
close(uplinkHandle);
close(remoteHandle);
close(trapHandle);
for (size_t index = 0; index < MEDIA_PORT_COUNT; index ++)
{
int handle = mediaHandles[index];
close(handle);
}
#ifdef __linux__
close(pollHandle);
close(timerHandle);
close(signalHandle);
#endif
#ifdef __MACH__
close(queueHandle);
mach_port_deallocate(mach_task_self(), clockService);
#endif
freeaddrinfo(serverAddress);
return EXIT_SUCCESS;
};

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BUILD := $(shell date -u +%Y%m%d-%H%M%S)
OS := $(shell uname -s)
TOOLKIT = ../..
DIRECTORIES = \
$(TOOLKIT)/Common \
$(TOOLKIT)/KAIROS
ifeq ($(OS), Linux)
LIBRARIES += \
rt
DEPENDENCIES = \
openssl
endif
ifeq ($(OS), Darwin)
CFLAGS += \
-Wno-deprecated-declarations \
-I/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift-migrator/sdk/MacOSX.sdk/usr/include/
LIBRARIES += \
crypto
endif
OBJECTS = \
CronosAgent.o
FLAGS := -g -fno-omit-frame-pointer -O3 -MMD $(foreach directory, $(DIRECTORIES), -I$(directory)) -DBUILD=\"$(BUILD)\"
LIBS := -lstdc++ $(foreach library, $(LIBRARIES), -l$(library))
CC = gcc
CFLAGS += $(FLAGS) -std=gnu99
ifeq ($(OS), Linux)
FLAGS += $(shell pkg-config --cflags $(DEPENDENCIES)) -rdynamic
LIBS += $(shell pkg-config --libs $(DEPENDENCIES))
endif
all: build
build: $(PREREQUISITES) $(OBJECTS)
$(CC) $(OBJECTS) $(FLAGS) $(LIBS) -o cronosagent
clean:
rm -f $(PREREQUISITES) $(OBJECTS) cronosagent
rm -f *.d $(TOOLKIT)/*/*.d
version:
echo "#define VERSION $(shell svn info | grep -E "^Revision:" | grep -o -E "[0-9]+")" > Version.h
.PHONY: all build clean install

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#ifndef REWIND_H
#define REWIND_H
#include <stdint.h>
#ifdef __cplusplus
extern "C"
{
#endif
#pragma pack(push, 1)
#define REWIND_DEFAULT_PORT 54004
#define REWIND_KEEP_ALIVE_INTERVAL 2
#define REWIND_SIGN_LENGTH 8
#define REWIND_PROTOCOL_SIGN "REWIND01"
#define REWIND_CLASS_REWIND_CONTROL 0x0000
#define REWIND_CLASS_SYSTEM_CONSOLE 0x0100
#define REWIND_CLASS_SERVER_NOTICE 0x0200
#define REWIND_CLASS_KAIROS_DATA 0x0800
#define REWIND_TYPE_KEEP_ALIVE (REWIND_CLASS_REWIND_CONTROL + 0)
#define REWIND_TYPE_CLOSE (REWIND_CLASS_REWIND_CONTROL + 1)
#define REWIND_TYPE_CHALLENGE (REWIND_CLASS_REWIND_CONTROL + 2)
#define REWIND_TYPE_AUTHENTICATION (REWIND_CLASS_REWIND_CONTROL + 3)
#define REWIND_TYPE_REPORT (REWIND_CLASS_SYSTEM_CONSOLE + 0)
#define REWIND_TYPE_BUSY_NOTICE (REWIND_CLASS_SERVER_NOTICE + 0)
#define REWIND_TYPE_REMOTE_CONTROL (REWIND_CLASS_KAIROS_DATA + 0)
#define REWIND_TYPE_SNMP_TRAP (REWIND_CLASS_KAIROS_DATA + 1)
#define REWIND_TYPE_SLOT_1_VOICE (REWIND_CLASS_KAIROS_DATA + 2)
#define REWIND_TYPE_SLOT_2_VOICE (REWIND_CLASS_KAIROS_DATA + 3)
#define REWIND_TYPE_ANALOG_VOICE (REWIND_CLASS_KAIROS_DATA + 4)
#define REWIND_TYPE_SLOT_1_DATA (REWIND_CLASS_KAIROS_DATA + 5)
#define REWIND_TYPE_SLOT_2_DATA (REWIND_CLASS_KAIROS_DATA + 6)
#define REWIND_TYPE_ANALOG_DATA (REWIND_CLASS_KAIROS_DATA + 7)
struct RewindVersionData
{
uint32_t number; // Agent ID
char version[0]; // Software version
};
struct RewindData
{
char sign[REWIND_SIGN_LENGTH];
uint16_t type; // REWIND_TYPE_*
uint16_t flags; // REWIND_FLAG_*
uint32_t number; // Packet sequence number
uint16_t length; // Length of following data
uint8_t data[0]; //
};
#pragma pack(pop)
#ifdef __cplusplus
}
#endif
#endif

1
Version.h Normal file
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#define VERSION 6604

18
cronosagent.service Normal file
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[Unit]
Description=CronosAgent
Afer=network.target
[Service]
; system.service
Type=simple
ExecStart=/opt/CronosAgent/cronosagent.sh
Restart=always
RestartSec=10
; system.exec
User=cronos
Group=cronos
StandardOutput=syslog
WorkingDirectory=/opt/CronosAgent
[Install]
WantedBy=multi-user.target

13
cronosagent.sh Executable file
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#/bin/bash
REPEATER_NUMBER=250304
REPEATER_ADDRESS=172.33.20.136
SERVER_ADDRESS=aesyle.dstar.su
SERVER_PASSWORD=passw0rd
./cronosagent \
--trap-port 8162 \
--repeater-number ${REPEATER_NUMBER} \
--repeater-address ${REPEATER_ADDRESS} \
--server-password ${SERVER_PASSWORD} \
--server-address ${SERVER_ADDRESS}

4
test.sh Executable file
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#/bin/bash
make
./cronosagent.sh
make clean