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openssl/apps/lib/vms_term_sock.c

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/*
* Copyright 2016-2022 The OpenSSL Project Authors. All Rights Reserved.
* Copyright 2016 VMS Software, Inc. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#ifdef __VMS
# define OPENSSL_SYS_VMS
# pragma message disable DOLLARID
# include <openssl/opensslconf.h>
# if !defined(_POSIX_C_SOURCE) && defined(OPENSSL_SYS_VMS)
/*
* On VMS, you need to define this to get the declaration of fileno(). The
* value 2 is to make sure no function defined in POSIX-2 is left undefined.
*/
# define _POSIX_C_SOURCE 2
# endif
# include <stdio.h>
# undef _POSIX_C_SOURCE
# include <sys/types.h>
# include <sys/socket.h>
# include <netinet/in.h>
# include <inet.h>
# include <unistd.h>
# include <string.h>
# include <errno.h>
# include <starlet.h>
# include <iodef.h>
# ifdef __alpha
# include <iosbdef.h>
# else
typedef struct _iosb { /* Copied from IOSBDEF.H for Alpha */
# pragma __nomember_alignment
__union {
__struct {
unsigned short int iosb$w_status; /* Final I/O status */
__union {
__struct { /* 16-bit byte count variant */
unsigned short int iosb$w_bcnt; /* 16-bit byte count */
__union {
unsigned int iosb$l_dev_depend; /* 32-bit device dependent info */
unsigned int iosb$l_pid; /* 32-bit pid */
} iosb$r_l;
} iosb$r_bcnt_16;
__struct { /* 32-bit byte count variant */
unsigned int iosb$l_bcnt; /* 32-bit byte count (unaligned) */
unsigned short int iosb$w_dev_depend_high; /* 16-bit device dependent info */
} iosb$r_bcnt_32;
} iosb$r_devdepend;
} iosb$r_io_64;
__struct {
__union {
unsigned int iosb$l_getxxi_status; /* Final GETxxI status */
unsigned int iosb$l_reg_status; /* Final $Registry status */
} iosb$r_l_status;
unsigned int iosb$l_reserved; /* Reserved field */
} iosb$r_get_64;
} iosb$r_io_get;
} IOSB;
# if !defined(__VAXC)
# define iosb$w_status iosb$r_io_get.iosb$r_io_64.iosb$w_status
# define iosb$w_bcnt iosb$r_io_get.iosb$r_io_64.iosb$r_devdepend.iosb$r_bcnt_16.iosb$w_bcnt
# define iosb$r_l iosb$r_io_get.iosb$r_io_64.iosb$r_devdepend.iosb$r_bcnt_16.iosb$r_l
# define iosb$l_dev_depend iosb$r_l.iosb$l_dev_depend
# define iosb$l_pid iosb$r_l.iosb$l_pid
# define iosb$l_bcnt iosb$r_io_get.iosb$r_io_64.iosb$r_devdepend.iosb$r_bcnt_32.iosb$l_bcnt
# define iosb$w_dev_depend_high iosb$r_io_get.iosb$r_io_64.iosb$r_devdepend.iosb$r_bcnt_32.iosb$w_dev_depend_high
# define iosb$l_getxxi_status iosb$r_io_get.iosb$r_get_64.iosb$r_l_status.iosb$l_getxxi_status
# define iosb$l_reg_status iosb$r_io_get.iosb$r_get_64.iosb$r_l_status.iosb$l_reg_status
# endif /* #if !defined(__VAXC) */
# endif /* End of IOSBDEF */
# include <efndef.h>
# include <stdlib.h>
# include <ssdef.h>
# include <time.h>
# include <stdarg.h>
# include <descrip.h>
# include "vms_term_sock.h"
# ifdef __alpha
static struct _iosb TerminalDeviceIosb;
# else
IOSB TerminalDeviceIosb;
# endif
static char TerminalDeviceBuff[255 + 2];
static int TerminalSocketPair[2] = {0, 0};
static unsigned short TerminalDeviceChan = 0;
static int CreateSocketPair (int, int, int, int *);
static void SocketPairTimeoutAst (int);
static int TerminalDeviceAst (int);
static void LogMessage (char *, ...);
/*
** Socket Pair Timeout Value (must be 0-59 seconds)
*/
# define SOCKET_PAIR_TIMEOUT_VALUE 20
/*
** Socket Pair Timeout Block which is passed to timeout AST
*/
typedef struct _SocketPairTimeoutBlock {
unsigned short SockChan1;
unsigned short SockChan2;
} SPTB;
# ifdef TERM_SOCK_TEST
/*----------------------------------------------------------------------------*/
/* */
/*----------------------------------------------------------------------------*/
int main (int argc, char *argv[], char *envp[])
{
char TermBuff[80];
int TermSock,
status,
len;
LogMessage ("Enter 'q' or 'Q' to quit ...");
while (OPENSSL_strcasecmp (TermBuff, "Q")) {
/*
** Create the terminal socket
*/
status = TerminalSocket (TERM_SOCK_CREATE, &TermSock);
if (status != TERM_SOCK_SUCCESS)
exit (1);
/*
** Process the terminal input
*/
LogMessage ("Waiting on terminal I/O ...\n");
len = recv (TermSock, TermBuff, sizeof(TermBuff), 0) ;
TermBuff[len] = '\0';
LogMessage ("Received terminal I/O [%s]", TermBuff);
/*
** Delete the terminal socket
*/
status = TerminalSocket (TERM_SOCK_DELETE, &TermSock);
if (status != TERM_SOCK_SUCCESS)
exit (1);
}
return 1;
}
# endif
/*----------------------------------------------------------------------------*/
/* */
/*----------------------------------------------------------------------------*/
int TerminalSocket (int FunctionCode, int *ReturnSocket)
{
int status;
$DESCRIPTOR (TerminalDeviceDesc, "SYS$COMMAND");
/*
** Process the requested function code
*/
switch (FunctionCode) {
case TERM_SOCK_CREATE:
/*
** Create a socket pair
*/
status = CreateSocketPair (AF_INET, SOCK_STREAM, 0, TerminalSocketPair);
if (status == -1) {
LogMessage ("TerminalSocket: CreateSocketPair () - %08X", status);
if (TerminalSocketPair[0])
close (TerminalSocketPair[0]);
if (TerminalSocketPair[1])
close (TerminalSocketPair[1]);
return TERM_SOCK_FAILURE;
}
/*
** Assign a channel to the terminal device
*/
status = sys$assign (&TerminalDeviceDesc,
&TerminalDeviceChan,
0, 0, 0);
if (! (status & 1)) {
LogMessage ("TerminalSocket: SYS$ASSIGN () - %08X", status);
close (TerminalSocketPair[0]);
close (TerminalSocketPair[1]);
return TERM_SOCK_FAILURE;
}
/*
** Queue an async IO to the terminal device
*/
status = sys$qio (EFN$C_ENF,
TerminalDeviceChan,
IO$_READVBLK,
&TerminalDeviceIosb,
TerminalDeviceAst,
0,
TerminalDeviceBuff,
sizeof(TerminalDeviceBuff) - 2,
0, 0, 0, 0);
if (! (status & 1)) {
LogMessage ("TerminalSocket: SYS$QIO () - %08X", status);
close (TerminalSocketPair[0]);
close (TerminalSocketPair[1]);
return TERM_SOCK_FAILURE;
}
/*
** Return the input side of the socket pair
*/
*ReturnSocket = TerminalSocketPair[1];
break;
case TERM_SOCK_DELETE:
/*
** Cancel any pending IO on the terminal channel
*/
status = sys$cancel (TerminalDeviceChan);
if (! (status & 1)) {
LogMessage ("TerminalSocket: SYS$CANCEL () - %08X", status);
close (TerminalSocketPair[0]);
close (TerminalSocketPair[1]);
return TERM_SOCK_FAILURE;
}
/*
** Deassign the terminal channel
*/
status = sys$dassgn (TerminalDeviceChan);
if (! (status & 1)) {
LogMessage ("TerminalSocket: SYS$DASSGN () - %08X", status);
close (TerminalSocketPair[0]);
close (TerminalSocketPair[1]);
return TERM_SOCK_FAILURE;
}
/*
** Close the terminal socket pair
*/
close (TerminalSocketPair[0]);
close (TerminalSocketPair[1]);
/*
** Return the initialized socket
*/
*ReturnSocket = 0;
break;
default:
/*
** Invalid function code
*/
LogMessage ("TerminalSocket: Invalid Function Code - %d", FunctionCode);
return TERM_SOCK_FAILURE;
break;
}
/*
** Return success
*/
return TERM_SOCK_SUCCESS;
}
/*----------------------------------------------------------------------------*/
/* */
/*----------------------------------------------------------------------------*/
static int CreateSocketPair (int SocketFamily,
int SocketType,
int SocketProtocol,
int *SocketPair)
{
struct dsc$descriptor AscTimeDesc = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, NULL};
static const char* LocalHostAddr = {"127.0.0.1"};
unsigned short TcpAcceptChan = 0,
TcpDeviceChan = 0;
unsigned long BinTimeBuff[2];
struct sockaddr_in sin;
char AscTimeBuff[32];
short LocalHostPort;
int status;
unsigned int slen;
# ifdef __alpha
struct _iosb iosb;
# else
IOSB iosb;
# endif
int SockDesc1 = 0,
SockDesc2 = 0;
SPTB sptb;
$DESCRIPTOR (TcpDeviceDesc, "TCPIP$DEVICE");
/*
** Create a socket
*/
SockDesc1 = socket (SocketFamily, SocketType, 0);
if (SockDesc1 < 0) {
LogMessage ("CreateSocketPair: socket () - %d", errno);
return -1;
}
/*
** Initialize the socket information
*/
slen = sizeof(sin);
memset ((char *) &sin, 0, slen);
sin.sin_family = SocketFamily;
sin.sin_addr.s_addr = inet_addr (LocalHostAddr);
sin.sin_port = 0;
/*
** Bind the socket to the local IP
*/
status = bind (SockDesc1, (struct sockaddr *) &sin, slen);
if (status < 0) {
LogMessage ("CreateSocketPair: bind () - %d", errno);
close (SockDesc1);
return -1;
}
/*
** Get the socket name so we can save the port number
*/
status = getsockname (SockDesc1, (struct sockaddr *) &sin, &slen);
if (status < 0) {
LogMessage ("CreateSocketPair: getsockname () - %d", errno);
close (SockDesc1);
return -1;
} else
LocalHostPort = sin.sin_port;
/*
** Setup a listen for the socket
*/
listen (SockDesc1, 5);
/*
** Get the binary (64-bit) time of the specified timeout value
*/
sprintf (AscTimeBuff, "0 0:0:%02d.00", SOCKET_PAIR_TIMEOUT_VALUE);
AscTimeDesc.dsc$w_length = strlen (AscTimeBuff);
AscTimeDesc.dsc$a_pointer = AscTimeBuff;
status = sys$bintim (&AscTimeDesc, BinTimeBuff);
if (! (status & 1)) {
LogMessage ("CreateSocketPair: SYS$BINTIM () - %08X", status);
close (SockDesc1);
return -1;
}
/*
** Assign another channel to the TCP/IP device for the accept.
** This is the channel that ends up being connected to.
*/
status = sys$assign (&TcpDeviceDesc, &TcpDeviceChan, 0, 0, 0);
if (! (status & 1)) {
LogMessage ("CreateSocketPair: SYS$ASSIGN () - %08X", status);
close (SockDesc1);
return -1;
}
/*
** Get the channel of the first socket for the accept
*/
TcpAcceptChan = decc$get_sdc (SockDesc1);
/*
** Perform the accept using $QIO so we can do this asynchronously
*/
status = sys$qio (EFN$C_ENF,
TcpAcceptChan,
IO$_ACCESS | IO$M_ACCEPT,
&iosb,
0, 0, 0, 0, 0,
&TcpDeviceChan,
0, 0);
if (! (status & 1)) {
LogMessage ("CreateSocketPair: SYS$QIO () - %08X", status);
close (SockDesc1);
sys$dassgn (TcpDeviceChan);
return -1;
}
/*
** Create the second socket to do the connect
*/
SockDesc2 = socket (SocketFamily, SocketType, 0);
if (SockDesc2 < 0) {
LogMessage ("CreateSocketPair: socket () - %d", errno);
sys$cancel (TcpAcceptChan);
close (SockDesc1);
sys$dassgn (TcpDeviceChan);
return (-1) ;
}
/*
** Setup the Socket Pair Timeout Block
*/
sptb.SockChan1 = TcpAcceptChan;
sptb.SockChan2 = decc$get_sdc (SockDesc2);
/*
** Before we block on the connect, set a timer that can cancel I/O on our
** two sockets if it never connects.
*/
status = sys$setimr (EFN$C_ENF,
BinTimeBuff,
SocketPairTimeoutAst,
&sptb,
0);
if (! (status & 1)) {
LogMessage ("CreateSocketPair: SYS$SETIMR () - %08X", status);
sys$cancel (TcpAcceptChan);
close (SockDesc1);
close (SockDesc2);
sys$dassgn (TcpDeviceChan);
return -1;
}
/*
** Now issue the connect
*/
memset ((char *) &sin, 0, sizeof(sin)) ;
sin.sin_family = SocketFamily;
sin.sin_addr.s_addr = inet_addr (LocalHostAddr) ;
sin.sin_port = LocalHostPort ;
status = connect (SockDesc2, (struct sockaddr *) &sin, sizeof(sin));
if (status < 0) {
LogMessage ("CreateSocketPair: connect () - %d", errno);
sys$cantim (&sptb, 0);
sys$cancel (TcpAcceptChan);
close (SockDesc1);
close (SockDesc2);
sys$dassgn (TcpDeviceChan);
return -1;
}
/*
** Wait for the asynch $QIO to finish. Note that if the I/O was aborted
** (SS$_ABORT), then we probably canceled it from the AST routine - so log
** a timeout.
*/
status = sys$synch (EFN$C_ENF, &iosb);
if (! (iosb.iosb$w_status & 1)) {
if (iosb.iosb$w_status == SS$_ABORT)
LogMessage ("CreateSocketPair: SYS$QIO(iosb) timeout");
else {
LogMessage ("CreateSocketPair: SYS$QIO(iosb) - %d",
iosb.iosb$w_status);
sys$cantim (&sptb, 0);
}
close (SockDesc1);
close (SockDesc2);
sys$dassgn (TcpDeviceChan);
return -1;
}
/*
** Here we're successfully connected, so cancel the timer, convert the
** I/O channel to a socket fd, close the listener socket and return the
** connected pair.
*/
sys$cantim (&sptb, 0);
close (SockDesc1) ;
SocketPair[0] = SockDesc2 ;
SocketPair[1] = socket_fd (TcpDeviceChan);
return (0) ;
}
/*----------------------------------------------------------------------------*/
/* */
/*----------------------------------------------------------------------------*/
static void SocketPairTimeoutAst (int astparm)
{
SPTB *sptb = (SPTB *) astparm;
sys$cancel (sptb->SockChan2); /* Cancel the connect() */
sys$cancel (sptb->SockChan1); /* Cancel the accept() */
return;
}
/*----------------------------------------------------------------------------*/
/* */
/*----------------------------------------------------------------------------*/
static int TerminalDeviceAst (int astparm)
{
int status;
/*
** Terminate the terminal buffer
*/
TerminalDeviceBuff[TerminalDeviceIosb.iosb$w_bcnt] = '\0';
strcat (TerminalDeviceBuff, "\n");
/*
** Send the data read from the terminal device through the socket pair
*/
send (TerminalSocketPair[0], TerminalDeviceBuff,
TerminalDeviceIosb.iosb$w_bcnt + 1, 0);
/*
** Queue another async IO to the terminal device
*/
status = sys$qio (EFN$C_ENF,
TerminalDeviceChan,
IO$_READVBLK,
&TerminalDeviceIosb,
TerminalDeviceAst,
0,
TerminalDeviceBuff,
sizeof(TerminalDeviceBuff) - 1,
0, 0, 0, 0);
/*
** Return status
*/
return status;
}
/*----------------------------------------------------------------------------*/
/* */
/*----------------------------------------------------------------------------*/
static void LogMessage (char *msg, ...)
{
char *Month[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
"Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
static unsigned int pid = 0;
va_list args;
time_t CurTime;
struct tm *LocTime;
char MsgBuff[256];
/*
** Get the process pid
*/
if (pid == 0)
pid = getpid ();
/*
** Convert the current time into local time
*/
CurTime = time (NULL);
LocTime = localtime (&CurTime);
/*
** Format the message buffer
*/
sprintf (MsgBuff, "%02d-%s-%04d %02d:%02d:%02d [%08X] %s\n",
LocTime->tm_mday, Month[LocTime->tm_mon],
(LocTime->tm_year + 1900), LocTime->tm_hour, LocTime->tm_min,
LocTime->tm_sec, pid, msg);
/*
** Get any variable arguments and add them to the print of the message
** buffer
*/
va_start (args, msg);
vfprintf (stderr, MsgBuff, args);
va_end (args);
/*
** Flush standard error output
*/
fsync (fileno (stderr));
return;
}
#endif
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