389 lines
13 KiB
C

#include <cmdHandler.h>
#include <stdint.h>
#include <stdbool.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <socket.h>
#include <logger.h>
#include <PontCoopScheduler.h>
#include <wizHelper.h>
#include <mbusComm.h>
#include <loopCtrl.h>
extern const uint8_t CMD_SOCK;
const uint16_t cmdPort = 23;
typedef enum {
CH_INIT,
CH_LISTEN,
CH_WAITING,
CH_BANNER,
CH_PROMPT,
CH_RECEIVE,
CH_DISCONNECT,
CH_DISCONNECT_WAIT,
CH_ERROR
} chState_t;
typedef bool (*cmdFunc_t)(uint8_t argc, char **args);
typedef struct {
bool requiredConfigMode;
char name[16];
char help[512];
cmdFunc_t cmdFunc;
} cmd_t;
// clear statistics
bool clearCmd(uint8_t argc, char **args) {
t_mbusCommStats zeroedStats = { .requestCnt = 0, .errorCnt = 0 };
mbusCommSetStats(zeroedStats);
coloredMsg(LOG_YELLOW, true, "ch cc global statistics cleared");
return true;
}
bool globalStatsCmd(uint8_t argc, char **args) {
t_mbusCommStats *stats = mbusCommGetStats();
char buf[256];
sprintf(buf, \
"Global statistics\n\r" \
" Requests: %ld\n\r" \
" Errors: %ld\n\r",
stats->requestCnt, stats->errorCnt
);
send(CMD_SOCK, (uint8_t*)buf, strlen(buf));
return true;
}
bool mbusCommEnableCmd(uint8_t argc, char **args) {
bool retCode = true;
if (argc == 2) {
if (0 == strcmp("false", args[1])) {
mbusCommEnable(false);
coloredMsg(LOG_YELLOW, true, "ch mcec Meterbus communication disabled");
} else if (0 == strcmp("true", args[1])) {
mbusCommEnable(true);
coloredMsg(LOG_YELLOW, true, "ch mcec Meterbus communication enabled");
} else {
retCode = false;
}
} else {
retCode = false;
}
return retCode;
}
bool loopEnableCmd(uint8_t argc, char **args) {
bool retCode = true;
if (argc == 2) {
if (0 == strcmp("false", args[1])) {
loopDisable();
coloredMsg(LOG_YELLOW, true, "ch lec loop disabled");
} else if (0 == strcmp("true", args[1])) {
loopEnable();
coloredMsg(LOG_YELLOW, true, "ch lec loop enabled");
} else {
retCode = false;
}
} else {
retCode = false;
}
return retCode;
}
const static cmd_t COMMANDS[] = {
{ .requiredConfigMode = true, .name = "clear", .cmdFunc = clearCmd,
.help = \
"clear ................................ Clears the global Meterbus\n\r" \
" statistics\n\r" \
" Required configuration mode\n\r"
},
{ .requiredConfigMode = true, .name = "mbusCommEnable", .cmdFunc = mbusCommEnableCmd,
.help = \
"mbusCommEnable true|false ............ Enables or disables the Meterbus\n\r" \
" communication\n\r"
},
{ .requiredConfigMode = true, .name = "loopEnable", .cmdFunc = loopEnableCmd,
.help = \
"loopEnable true|false ................ Enables or disables the loop.\n\r" \
" Disable Meterbus communication\n\r" \
" first if you want to disable the\n\r" \
" for a longer time, otherwise the\n\r" \
" request will enable it again\n\r"
},
{ .requiredConfigMode = false, .name = "globalStats", .cmdFunc = globalStatsCmd,
.help = \
"globalStats .......................... Show the global statistics\n\r" \
" counters requestCnt and errorCnt\n\r"
},
{ .requiredConfigMode = false, .name = "END_OF_CMDS", .help = "",.cmdFunc = NULL }
};
// returns 0 to continue waiting for input
// returns -1 to close the connection
// returns 1 to toggle to config mode
// returns 2 to toggle back to default mode
int8_t cmdExecuteCommand(uint8_t *cmdLine, bool resetConfigMode) {
const static char HELP_MSG[] = \
"Usage\n\r" \
"\n\r" \
"help ................................. Show this help page\n\r" \
"quit ................................. Terminate the console session\n\r" \
"enable ............................... Enable configuration mode\n\r" \
"disable .............................. Disable configuration mode\n\r" \
;
const static char GOODBYE_MSG[] = "Good bye\n\r";
const static char OK_MSG[] = "OK\n\r";
const static char FAILED_MSG[] = "Failed\n\r";
const static char REQUIRES_CONFIG_MODE_MGS[] = "Not executed, requires config mode\n\r";
uint8_t *messageToSend = NULL;
static bool configMode = false;
if (resetConfigMode) {
configMode = false;
}
coloredMsg(LOG_YELLOW, false, "ch cec cmdLine is %s", cmdLine);;
#define MAX_NUM_OF_ARGS 8
char *args[MAX_NUM_OF_TASKS];
uint8_t argc = 0;
char *inCmdLine = (char*)cmdLine;
do {
args[argc++] = strtok(inCmdLine, " ");
inCmdLine = NULL;
} while (args[argc - 1] != NULL);
if (argc > 0) {
argc--;
}
char *cmd = args[0];
int8_t retCode = 0;
coloredMsg(LOG_YELLOW, false, "ch cec cmd is %s, number of arguments %d", cmd, argc);
if (0 == strcmp(cmd, "quit")) {
messageToSend = (uint8_t*)GOODBYE_MSG;
retCode = -1;
} else if (0 == strcmp(cmd, "help")) {
send(CMD_SOCK, (uint8_t*)HELP_MSG, strlen(HELP_MSG));
uint8_t cmdIdx = 0;
while (true) {
cmd_t command = COMMANDS[cmdIdx];
if (0 == strcmp("END_OF_CMDS", command.name)) {
break;
}
send(CMD_SOCK, (uint8_t*)command.help, strlen(command.help));
cmdIdx++;
}
messageToSend = NULL;
} else if (0 == strcmp(cmd, "enable")) {
coloredMsg(LOG_YELLOW, true, "ch cec enable config mode");
configMode = true;
retCode = 1;
} else if (0 == strcmp(cmd, "disable")) {
coloredMsg(LOG_YELLOW, true, "ch cec disable config mode");
configMode = false;
retCode = 2;
} else {
uint8_t cmdIdx = 0;
while (true) {
cmd_t command = COMMANDS[cmdIdx];
if (0 == strcmp("END_OF_CMDS", command.name)) {
break;
}
if (0 == strcmp(cmd, command.name)) {
if (command.requiredConfigMode && !configMode) {
messageToSend = (uint8_t*)REQUIRES_CONFIG_MODE_MGS;
} else {
messageToSend = command.cmdFunc(argc, args) ? (uint8_t*)OK_MSG : (uint8_t*)FAILED_MSG;
}
}
cmdIdx++;
}
}
if (messageToSend) {
send(CMD_SOCK, messageToSend, strlen((char*)messageToSend));
}
return retCode;
}
void cmdHandlerEngine(void *handle) {
static uint8_t receiveBuffer[256];
static chState_t state = CH_INIT;
static bool resetConfigMode = false;
static char banner[] = \
"MBGW3\n\r" \
"Type help for usage help\n\r" \
"or quit to close the connection.\n\r";
static char *prompt;
static char defaultPrompt[] = "MBGW3 # ";
static char elevatedPrompt[] = "MBGW3 (admin) > ";
int8_t res = 0;
uint8_t sockState;
int32_t resultSend;
int16_t receivedOctets;
int32_t resultRecv;
uint8_t resultDisconnect;
if (isNetworkAvailable()) {
switch (state) {
case CH_INIT:
coloredMsg(LOG_YELLOW, false, "ch che initializing socket");
res = socket(CMD_SOCK, Sn_MR_TCP, cmdPort, SF_IO_NONBLOCK);
coloredMsg(LOG_YELLOW, false, "ch che socket returns %d", res);
if (res == CMD_SOCK) {
coloredMsg(LOG_YELLOW, false, "ch che socket is initialized");
state = CH_LISTEN;
} else {
state = CH_ERROR;
}
break;
case CH_LISTEN:
coloredMsg(LOG_YELLOW, false, "ch che listening");
res = listen(CMD_SOCK);
coloredMsg(LOG_YELLOW, false, "ch che listen returns %d", res);
if (res == SOCK_OK) {
coloredMsg(LOG_YELLOW, false, "ch che ok, waiting for established");
state = CH_WAITING;
} else {
state = CH_ERROR;
}
break;
case CH_WAITING:
sockState = getSn_SR(CMD_SOCK);
if (sockState != SOCK_LISTEN) {
coloredMsg(LOG_YELLOW, false, "ch che socket state is 0x%02x", sockState);
}
if (sockState == SOCK_ESTABLISHED) {
coloredMsg(LOG_YELLOW, true, "ch che connection is established");
state = CH_BANNER;
}
break;
case CH_BANNER:
coloredMsg(LOG_YELLOW, false, "ch che send banner");
sockState = getSn_SR(CMD_SOCK);
if (sockState != SOCK_ESTABLISHED) {
coloredMsg(LOG_YELLOW, true, "ch che sockState is 0x%02x when trying to send banner", sockState);
state = CH_DISCONNECT;
} else {
resultSend = send(CMD_SOCK, (uint8_t*)banner, strlen(banner));
coloredMsg(LOG_YELLOW, false, "ch che sent banner, send returns 0x%02x", resultSend);
prompt = defaultPrompt;
resetConfigMode = true;
state = CH_PROMPT;
}
break;
case CH_PROMPT:
coloredMsg(LOG_YELLOW, false, "ch che send prompt");
sockState = getSn_SR(CMD_SOCK);
if (sockState != SOCK_ESTABLISHED) {
coloredMsg(LOG_YELLOW, true, "ch che sockState is 0x%02x when trying to send promt", sockState);
state = CH_DISCONNECT;
} else {
resultSend = send(CMD_SOCK, (uint8_t*)prompt, strlen(prompt));
coloredMsg(LOG_YELLOW, false, "ch che sent prompt %s, send returns 0x%02x", prompt, resultSend);
state = CH_RECEIVE;
}
break;
case CH_RECEIVE:
sockState = getSn_SR(CMD_SOCK);
if (sockState != SOCK_ESTABLISHED) {
coloredMsg(LOG_YELLOW, true, "ch che sockState is 0x%02x when trying to receive something", sockState);
state = CH_DISCONNECT;
} else {
receivedOctets = getSn_RX_RSR(CMD_SOCK);
if (receivedOctets > 0) {
memset(receiveBuffer, 0, sizeof(receiveBuffer));
resultRecv = recv(CMD_SOCK, receiveBuffer, sizeof(receiveBuffer));
coloredMsg(LOG_YELLOW, false, "ch che recv returns 0x%02x", resultRecv);
if (resultRecv > 0) {
if ((receiveBuffer[strlen((char*)receiveBuffer) - 1] == 0x0a) ||
(receiveBuffer[strlen((char*)receiveBuffer) - 1] == 0x0d)) {
receiveBuffer[strlen((char*)receiveBuffer) - 1] = 0;
}
if ((receiveBuffer[strlen((char*)receiveBuffer) - 1] == 0x0a) ||
(receiveBuffer[strlen((char*)receiveBuffer) - 1] == 0x0d)) {
receiveBuffer[strlen((char*)receiveBuffer) - 1] = 0;
}
coloredMsg(LOG_YELLOW, false, "ch che received: %s", receiveBuffer);
int8_t resCEC = cmdExecuteCommand(receiveBuffer, resetConfigMode);
resetConfigMode = false;
switch (resCEC) {
case 0:
state = CH_PROMPT;
break;
case -1:
state = CH_DISCONNECT;
break;
case 1:
prompt = elevatedPrompt;
state = CH_PROMPT;
break;
case 2:
prompt = defaultPrompt;
state = CH_PROMPT;
break;
}
}
}
}
break;
case CH_DISCONNECT:
coloredMsg(LOG_YELLOW, true, "ch che close our end");
resultDisconnect = disconnect(CMD_SOCK);
coloredMsg(LOG_YELLOW, true, "ch che disconnect returns 0x%02x", resultDisconnect);
state = CH_DISCONNECT_WAIT;
break;
case CH_DISCONNECT_WAIT:
coloredMsg(LOG_YELLOW, false, "ch che waiting after disconnect");
sockState = getSn_SR(CMD_SOCK);
coloredMsg(LOG_YELLOW, false, "ch che sockState is 0x%02x", sockState);
if (sockState == SOCK_CLOSED) {
coloredMsg(LOG_YELLOW, true, "ch che socket is closed now");
state = CH_INIT;
}
break;
case CH_ERROR:
coloredMsg(LOG_YELLOW, true, "ch che error state, will stop here");
schDel(cmdHandlerEngine, NULL);
break;
}
}
}
void cmdHandlerInit() {
schAdd(cmdHandlerEngine, NULL, 0, 100);
}