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ReferenceswolfSSL - Embedded SSL Library → Posts by akhi_gangwar
I tried so many things but nothing worked. I dont know what to do now.
Hi Kaleb, See-
WOLFSSL *ssl_cmd, *ssl_data;
WOLFSSL_CTX* ctx=NULL, *ctx1=NULL;
int start_TLS()
{
/// create and other code and using ssl_cmd
// print(value of ssl_cmd= %p,ssl_cmd);
// values of ssl_cmd= @00027dfc
}
int createFtpSocket(char *ipAddress, int portNr)
{
int status = start_TLS();
// print(value of ssl_cmd= %p,ssl_cmd);
// value of ssl_cmd here = @00033170
// though I am not using this here... but still printing
}
bool pmoPosFtpProc(char* result)
{
int sock = createFtpSocket(g_ftpHost, 21);
wolfSSL_free(ssl_cmd);
// value of ssl_cmd here =@0001ebb4
}Hi Kaleb,
I tried with that also. I made a global variable and used that in all functions. Still getting the problem.
I'll post the pointer values tomorrow.
Thanks
Hi Kaleb,
I tried the same way and still the same problem. I don't know why I am getting this-
See the code in a minimal way this time-
WOLFSSL *ssl_cmd, *ssl_data;
WOLFSSL_CTX* ctx=NULL, *ctx1=NULL;
int start_TLS( WOLFSSL **ssl1)
{
WOLFSSL *ssl;
/// create and other code
*ssl1 = ssl;
// print(value of *ssl1 = %p and ssl = %p", *ssl1, ssl);
// values of *ssl1= @00026d68 and ssl= @00026d68
}
int createFtpSocket(char *ipAddress, int portNr)
{
int status = start_TLS(&ssl_cmd);
// value of ssl_cmd after start_tls = @00033564
}
bool pmoPosFtpProc(char* result)
{
int sock = createFtpSocket(g_ftpHost, 21);
wolfSSL_free(ssl_cmd);
// value of ssl_cmd here = @0001d938
}I exactly copied the method given there and fully understood that too and executed on machine also. Some other ways I also tried where the pointers are sync. But here failing.
Hi Kaleb,
I tried that too but could not make it right. Still, I am getting the same error.
I am posting my relevant code. Please check.
WOLFSSL *ssl_cmd=NULL, *ssl_data=NULL;
WOLFSSL_CTX* ctx=NULL, *ctx1=NULL;
int sock1, sock3;
void exitApp(WOLFSSL_CTX* ctx)
{
if (ctx != NULL)
{
wolfSSL_CTX_free(ctx);
wolfSSL_Cleanup();
}
// BIOS_exit(-1);
}
int start_TLS( WOLFSSL **ssl)
{
int ret, valread;
// WOLFSSL *ssl;
Error_Block eb;
int nbytes;
char *buffer;
char msg[50] = { };
char buff[512];
memset(buff, 0, 512);
// fdOpenSession(TaskSelf());
Error_init(&eb);
wolfSSL_Init();
ctx = wolfSSL_CTX_new(wolfTLSv1_2_client_method());
if (ctx == 0)
{
logg("****Error****: WolfSSL_CTX error", "");
exitApp(ctx);
return -1;
}
// cert
uint8_t *der = NULL;
uint32_t len, ret1;
ret1 = CertConv_pem2der(ca_cert, sizeof_ca_cert, &der, &len);
if (ret1 != 0)
{
logg("***Error***: cert conversion to .der fail", "");
return -1;
}
int status = wolfSSL_CTX_load_verify_buffer(ctx, der, len,
SSL_FILETYPE_ASN1);
if (status != SSL_SUCCESS)
{
logg("tcpHandler: Error loading ca_cert_der_2048\n", "");
exitApp(ctx);
return -1;
}
strcpy(msg, "AUTH TLS\r\n");
ret = send(sock1, msg, strlen(msg), 0);
valread = recv(sock1, buff, sizeof(buff) - 1, 0);
*ssl = wolfSSL_new(ctx);
if (*ssl == NULL)
{
logg("tcpHandler: wolfSSL_new error.\n", "");
exitApp(ctx);
return -1;
}
wolfSSL_set_fd(*ssl, sock1);
ret = wolfSSL_connect(*ssl);
int err;
char err_buffer[80];
err = wolfSSL_get_error(*ssl, 0);
if (ret == SSL_SUCCESS)
{
logg("TLS successful", "");
sock1 = wolfSSL_get_fd(*ssl);
/* Get a buffer to receive incoming packets. Use the default heap. */
buffer = Memory_alloc(NULL, 512, 0, &eb);
if (buffer == NULL)
{
logg("tcpWorker: failed to alloc memory\n", "");
exitApp(ctx);
return -1;
}
strcpy(msg, "PBSZ 0\r\n");
if (wolfSSL_send(*ssl, msg, strlen(msg), 0) != strlen(msg))
{
ret = wolfSSL_get_error(*ssl, 0);
logInt("Write error: %i.\n", "", ret);
}
nbytes = wolfSSL_recv(*ssl, (char *) buffer, 512, 0);
if (nbytes <= 0)
{
logg("***error: Reading failed", "");
return -1;
}
else
logStr("PBSZ 0 is successfull %s", "", buffer);
strcpy(msg, "PROT P\r\n");
if (wolfSSL_write(*ssl, msg, strlen(msg)) != strlen(msg))
{
ret = wolfSSL_get_error(*ssl, 0);
logInt("Write error: %i.\n", "", ret);
return -1;
}
nbytes = wolfSSL_read(*ssl, (char *) buffer, 512);
if (nbytes <= 0)
{
logg("***error: Reading failed", "");
return -1;
}
else
logStr("PROT P is successfull %s", "", buffer);
// ssl_cmd = ssl;
logInt("local ssl for command is %p ", *ssl,"");
logInt("ssl_data is %p ", ssl_cmd,"");
logInt("ctx is %p ", ctx,"");
Memory_free(NULL, buffer, 512);
}
// wolfSSL_free(ssl_cmd);
// fdClose((SOCKET) sockfd);
// flag = false;
else
{
wolfSSL_free(*ssl);
// fdClose((SOCKET) sockfd);
logg("wolfSSL_connect failed.\n", "");
// fdCloseSession(TaskSelf());
close(sock1);
exitApp(ctx);
return -1;
}
return 0;
}
int check = 0;
int createFtpDataSocket(WOLFSSL **ssl, char *ipAddress, int portNr)
{
int sockfd;
struct sockaddr_in servAddr;
int ret, valread;
unsigned char cert[sizeof_ca_cert];
strcpy(cert, ca_cert);
// WOLFSSL *ssl;
Error_Block eb;
bool flag = true;
bool internal_flag = true;
int nbytes;
char *buffer;
char msg[50] = { };
char buff[512];
memset(buff, 0, 512);
// fdOpenSession(TaskSelf());
Error_init(&eb);
wolfSSL_Init();
//WOLFSSL_CTX* ctx = NULL;
ctx1 = wolfSSL_CTX_new(wolfTLSv1_2_client_method());
if (ctx1 == 0)
{
logg("****Error****: WolfSSL_CTX error", "");
exitApp(ctx1);
return -1;
}
//SSL_FILETYPE_PEM
uint8_t *der = NULL;
uint32_t len, ret1;
ret1 = CertConv_pem2der(ca_cert, sizeof_ca_cert, &der, &len);
if (ret1 != 0)
{
logg("***Error***: cert conversion to .der fail", "");
return -1;
}
int status = wolfSSL_CTX_load_verify_buffer(ctx1, der, len,
SSL_FILETYPE_ASN1);
if (status != SSL_SUCCESS)
{
logg("tcpHandler: Error loading ca_cert_der_2048\n", "");
exitApp(ctx1);
return -1;
}
*ssl = wolfSSL_new(ctx1);
if (*ssl == NULL)
{
logg("tcpHandler: wolfSSL_new error.\n", "");
exitApp(ctx1);
return -1;
}
sockfd = socket(AF_INET, SOCK_STREAM, 0);
if (sockfd < 0)
{
logInt("***Error***: ftp socket creation failed val is %d", "", sockfd);
}
memset((char *) &servAddr, 0, sizeof(servAddr));
servAddr.sin_family = AF_INET;
servAddr.sin_port = htons(portNr);
if (HTTPCli_initSockAddr((struct sockaddr *) &servAddr, ipAddress, 0) < 0)
{
logg("ftp: ***ERROR*** - address not resolved.", "");
sockfd = 0;
return -1;
}
// if(cmd_channel)
ret = connect(sockfd, (struct sockaddr *) &servAddr, sizeof(servAddr));
wolfSSL_set_fd(*ssl, sockfd);
ret = wolfSSL_connect(*ssl);
int err;
char err_buffer[80];
err = wolfSSL_get_error(*ssl, 0);
if (ret == SSL_SUCCESS)
{
logg("TLS successful", "");
sockfd = wolfSSL_get_fd(*ssl);
/* Get a buffer to receive incoming packets. Use the default heap. */
buffer = Memory_alloc(NULL, 512, 0, &eb);
if (buffer == NULL)
{
logg("tcpWorker: failed to alloc memory\n", "");
exitApp(ctx1);
return -1;
}
// ssl_data = ssl;
sock3 = sockfd;
logInt("local *ssl for data is %p ", *ssl,"");
logInt("ssl_data is %p ", ssl_data,"");
logInt("ctx1 is %p ", ctx1,"");
Memory_free(NULL, buffer, 512);
}
else
{
wolfSSL_free(*ssl);
close(sock3);
// fdClose((SOCKET) sockfd);
logg("***Error***: Data connection failed failed.\n", "");
// fdCloseSession(TaskSelf());
exitApp(ctx1);
return -1;
}
return 0;
}
int createFtpSocket(char *ipAddress, int portNr)
{
int sockfd;
struct sockaddr_in servAddr;
int ret, valread;
Error_Block eb;
char buff[512];
memset(buff, 0, 512);
// fdOpenSession(TaskSelf());
Error_init(&eb);
sockfd = socket(AF_INET, SOCK_STREAM, 0);
if (sockfd < 0)
{
logInt("***Error***: ftp socket creation failed val is %d", "", sockfd);
}
memset((char *) &servAddr, 0, sizeof(servAddr));
servAddr.sin_family = AF_INET;
servAddr.sin_port = htons(portNr);
if (HTTPCli_initSockAddr((struct sockaddr *) &servAddr, ipAddress, 0) < 0)
{
logg("ftp: ***ERROR*** - address not resolved.", "");
sockfd = 0;
return -1;
}
// if(cmd_channel)
ret = connect(sockfd, (struct sockaddr *) &servAddr, sizeof(servAddr));
if (ret < 0)
{
logStrInt("ftp: ***ERROR*** - connect failed ip %s port %d - quitting.",
"", ipAddress, portNr);
logInt(" \nreturn value is %d ", "", ret);
return ret;
}
else
{
//if(cmd_channel)
valread = recv(sockfd, buff, sizeof(buff) - 1, 0);
logStr("received buffer : %s", "", buff);
sock1 = sockfd;
memset(buff, 0, 512);
}
/////////////////////////////////
if (g_ftps)
{
int status = start_TLS(&ssl_cmd);
if (status)
{
logg("***error*** tls failed:", "");
return -1;
}
}
return 0;
}
bool executeFtpCmd(char *ftpCmd, char* result, int size)
{
//logStr("executing ftp cmd %s","",ftpCmd);
bool answer = true;
// strcpy(ftpCmd,ftpCmd1);
int sent = wolfSSL_write(ssl_cmd, ftpCmd, strlen(ftpCmd));
int ret = wolfSSL_get_error(ssl_cmd, 0);
//send(sock, ftpCmd, strlen(ftpCmd), 0);
int valread = wolfSSL_read(ssl_cmd, (char *) result, size);
//recv(sock, result, size, 0);
if (valread > 0)
{
result[valread - 2] = 0;
}
else
{
result[0] = 0;
answer = false;
char cmd[5] = { 0 };
strncat(cmd, ftpCmd, 4);
logStr("***ERROR*** - ftp: cmd %s failed - continuing", "", cmd);
}
return answer;
}
//
bool processFtpData(char* inFtpCmd, char* outBuff, bool push)
{
/ * //////////// some code *//////////////
strcpy(ftpCmd, "PASV\r\n");
if (!executeFtpCmd(ftpCmd, ftpResp, sizeof(ftpResp) - 1))
{
return false;
}
/////////////// some code to extract ip and port no ///////////////////////
int sock2 = createFtpDataSocket(&ssl_data, ftpDataIpAdr, ftpDataPortNr); ////////////////// data connection
///// do some processing related to data connection /////////////////////
wolfSSL_free(ssl_data); ///////// freeing data socket
close(sock3); //////////////closing data socket
exitApp(ctx1);//////////////ctx1 related to data connection
return answer;
}
bool pmoPosFtpProc(char* result)
{
int sock = createFtpSocket(g_ftpHost, 21);
if (sock < 0)
return false;
//////////////////////////// do login and other commands////////////////
processFtpData("LIST /abc.txt\r\n", result, false);////////////////////////////////
ftpCleanup: strcpy(ftpCmd, "QUIT\r\n");
logg(" ******Closing socket******",__FUNCTION__);
executeFtpCmd(ftpCmd, ftpResp, sizeof(ftpResp) - 1);
logg("before freeing cmd pointers:","");
logInt("ssl_cmd is %p", ssl_cmd,"");
logInt("ctx is %p ", ctx,"");
wolfSSL_free(ssl_cmd); ///////////// closing command channel related stuffs
close(sock1);
exitApp(ctx);
return (answer);
}I am getting the same behavior, different pointer values.
Thanks
HI Kaleb,
Please see. I tried what you said.
local ssl_cmd for command is @00027ddc
ssl_cmd is @00027ddc
ctx is @00027ddc
before freeing cmd pointers:
ssl_cmd is @0001ebb4
ctx is @0001ebb4
local ssl_data for data is @000296c0
ssl_data is @000296c0
ctx1 is @000296c0
before freeing the data pointers, values are :
ssl_data is @00025948
ctx1 is @00025948
Before freeing, the values are changed. Same behavior. Please check.
Hi Kaleb,
Thanks for the information. I am trying explicit ftps where I am creating a command channel and data channel. There is a local variable WOLFSSL * ssl which is creating the tls and after creating, I am assigning this to a global variable WOLFSSL * ssl_cmd
in this way-
ssl_cmd = ssl;
In the same way, while creating the data channel, I am doing - ssl_data=ssl;
There are two different functions for command and data. WOLFSSL * ssl is the local variable to that function and WOLFSSL *ssl_cmd, *ssl_data are two global variable.
The values are-
print("local ssl for data is %d ", ssl,"");
print("ssl_data is %d ", ssl_data,"");
print("ctx1 is %d: ", ctx1,"");
local ssl for data is 169672 // while creating
ssl_data is 169672
ctx1 is 169672:
values before freeing up- // another function where ssl_data and ctx1 (global variable) are being used
ssl_data is 153932
ctx1 is 153932
Why these two values are changed in 2nd function? I think this is the cause I am getting the memory error. Also, but each time the memory locations are the same
I also tried to avoid local variable. Only global variable and freeing the same. But same error is occuring.
Hi All,
I am getting this error while using wolfSSL_connect api. The error doesn't come at first. But after reconnecting to 2nd or 3rd time, I am getting this error-
Error:out of memory: handle=0x2003256c, size=1664
error is -353
I am using ret = wolfSSL_connect(ssl); where,
- ssl is a local variable that is assigned to a global variable, wolfssl * ssl_cmd to keep the wolfssl alive for other functions.
- After successfully completing the operations, before reconnecting, I am closing the ssl_cmd in this way-
wolfSSL_free(ssl_cmd);
close(sock1);
exitApp(ctx);
I should not get this error but I dont know why I am getting this.
Please see what can be done.
Thanks
Hi Kaleb,
I resolved the issue. It was the sequencing problem. Nothing else.
Thanks
Hi Kaleb,
I am able to resolve this issue. The variable issue was there.
I am getting one more issue which is a bit weird. As I am doing explicit ftps, I am able to open command channel and procedure is as follows-
1. Create a plain socket with ftp server using socket APIs.
2. Upon sending the AUTH TLS command, create the tls using wolfssl to perform the handshake.
3. Things are working and I am able to log in and send commands to ftp server.
But when I am trying to open the data connection, which is 1 more socket to the server but at a different port, using
socket api (sl_connect), I am not able to create it. Even the socket API is not working anymore. Nothing is going to the server.
What can be the issue? Can't I create plain socket anymore if I have used wolfssl?
Hi Kaleb,
I am getting this error while using wolfSSL_write api-
int sent = wolfSSL_write(ssl_cmd, ftpCmd, strlen(ftpCmd));
// ssl_cmd is the global variable used in other function to initiallize the TLS. In that function, wolfSSL_write function is working fine.
// ftpCmd is the local variable.
I am getting -173 error value. Any reason??
Thanks
Hi Kaleb,
I resolved this issue. I changed the socket library from ethernet to wifi and these error codes manually I ad to set as these were not in wifi.
Thanks
Hi All,
I am trying to rebuild the wolfssl library for simplelink but getting errors. After going through the online documentation and checking the ethernet version of wolfssl, I tried to do this-
1. Changing the directory from NDK to Simplelink in the wolfssl>tirtos>products.mak
NDK_INSTALL_DIR= C:\ti\tirtos_tivac_2_16_01_14\products\tidrivers_tivac_2_16_01_13\packages\ti\mw\wifi
and setting the #include<include/socket.h> into wolfio.h but I am getting this error-
clem4f C:/Users/Akhilesh/Downloads/wolfssl-4.3.0/tirtos/../src/wolfio.c ...
"C:/Users/Akhilesh/Downloads/wolfssl-4.3.0/tirtos/../src/wolfio.c", line 98: error: identifier "errno" is undefined
"C:/Users/Akhilesh/Downloads/wolfssl-4.3.0/tirtos/../src/wolfio.c", line 229: error: identifier "ECONNRESET" is undefined
"C:/Users/Akhilesh/Downloads/wolfssl-4.3.0/tirtos/../src/wolfio.c", line 233: error: identifier "EINTR" is undefined
"C:/Users/Akhilesh/Downloads/wolfssl-4.3.0/tirtos/../src/wolfio.c", line 237: error: identifier "ECONNABORTED" is undefined
"C:/Users/Akhilesh/Downloads/wolfssl-4.3.0/tirtos/../src/wolfio.c", line 276: error: identifier "ECONNRESET" is undefined
"C:/Users/Akhilesh/Downloads/wolfssl-4.3.0/tirtos/../src/wolfio.c", line 280: error: identifier "EINTR" is undefined
"C:/Users/Akhilesh/Downloads/wolfssl-4.3.0/tirtos/../src/wolfio.c", line 284: error: identifier "EPIPE" is undefined
7 errors detected in the compilation of "C:/Users/Akhilesh/Downloads/wolfssl-4.3.0/tirtos/../src/wolfio.c".
I am not able to figure it out.
wolfSSL - Embedded SSL Library → Posts by akhi_gangwar
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