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/*
* Copyright (C) 1997-2000 Matt Newman <[email protected]>
*
* Provides BIO layer to interface openssl to Tcl.
*/
#include "tlsInt.h"
static int BioWrite(BIO *bio, const char *buf, int bufLen) {
Tcl_Channel chan;
int ret;
int tclEofChan, tclErrno;
chan = Tls_GetParent((State *) BIO_get_data(bio), 0);
dprintf("[chan=%p] BioWrite(%p, <buf>, %d)", (void *)chan, (void *) bio, bufLen);
ret = Tcl_WriteRaw(chan, buf, bufLen);
tclEofChan = Tcl_Eof(chan);
tclErrno = Tcl_GetErrno();
dprintf("[chan=%p] BioWrite(%d) -> %d [tclEof=%d; tclErrno=%d]", (void *) chan, bufLen, ret, tclEofChan, Tcl_GetErrno());
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/*
* Copyright (C) 1997-2000 Matt Newman <[email protected]>
*
* Provides BIO layer to interface openssl to Tcl.
*/
#include "tlsInt.h"
static int BioWrite(BIO *bio, const char *buf, int bufLen) {
Tcl_Channel chan;
Tcl_Size ret;
int tclEofChan, tclErrno;
chan = Tls_GetParent((State *) BIO_get_data(bio), 0);
dprintf("[chan=%p] BioWrite(%p, <buf>, %d)", (void *)chan, (void *) bio, bufLen);
ret = Tcl_WriteRaw(chan, buf, (Tcl_Size) bufLen);
tclEofChan = Tcl_Eof(chan);
tclErrno = Tcl_GetErrno();
dprintf("[chan=%p] BioWrite(%d) -> %" TCL_SIZE_MODIFIER "d [tclEof=%d; tclErrno=%d]",
(void *) chan, bufLen, ret, tclEofChan, Tcl_GetErrno());
BIO_clear_flags(bio, BIO_FLAGS_WRITE | BIO_FLAGS_SHOULD_RETRY);
if (tclEofChan && ret <= 0) {
dprintf("Got EOF while reading, returning a Connection Reset error which maps to Soft EOF");
Tcl_SetErrno(ECONNRESET);
ret = 0;
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if (ret != -1 || (ret == -1 && tclErrno == EAGAIN)) {
if (BIO_should_read(bio)) {
dprintf("Setting should retry read flag");
BIO_set_retry_read(bio);
}
}
return(ret);
}
static int BioRead(BIO *bio, char *buf, int bufLen) {
Tcl_Channel chan;
int ret = 0;
int tclEofChan, tclErrno;
chan = Tls_GetParent((State *) BIO_get_data(bio), 0);
dprintf("[chan=%p] BioRead(%p, <buf>, %d)", (void *) chan, (void *) bio, bufLen);
if (buf == NULL) {
return 0;
}
ret = Tcl_ReadRaw(chan, buf, bufLen);
tclEofChan = Tcl_Eof(chan);
tclErrno = Tcl_GetErrno();
dprintf("[chan=%p] BioRead(%d) -> %d [tclEof=%d; tclErrno=%d]", (void *) chan, bufLen, ret, tclEofChan, tclErrno);
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if (ret != -1 || (ret == -1 && tclErrno == EAGAIN)) {
if (BIO_should_read(bio)) {
dprintf("Setting should retry read flag");
BIO_set_retry_read(bio);
}
}
return((int) ret);
}
static int BioRead(BIO *bio, char *buf, int bufLen) {
Tcl_Channel chan;
Tcl_Size ret = 0;
int tclEofChan, tclErrno;
chan = Tls_GetParent((State *) BIO_get_data(bio), 0);
dprintf("[chan=%p] BioRead(%p, <buf>, %d)", (void *) chan, (void *) bio, bufLen);
if (buf == NULL) {
return 0;
}
ret = Tcl_ReadRaw(chan, buf, (Tcl_Size) bufLen);
tclEofChan = Tcl_Eof(chan);
tclErrno = Tcl_GetErrno();
dprintf("[chan=%p] BioRead(%d) -> %" TCL_SIZE_MODIFIER "d [tclEof=%d; tclErrno=%d]",
(void *) chan, bufLen, ret, tclEofChan, tclErrno);
BIO_clear_flags(bio, BIO_FLAGS_READ | BIO_FLAGS_SHOULD_RETRY);
if (tclEofChan && ret <= 0) {
dprintf("Got EOF while reading, returning a Connection Reset error which maps to Soft EOF");
Tcl_SetErrno(ECONNRESET);
ret = 0;
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if (BIO_should_write(bio)) {
dprintf("Setting should retry write flag");
BIO_set_retry_write(bio);
}
}
dprintf("BioRead(%p, <buf>, %d) [%p] returning %i", (void *) bio, bufLen, (void *) chan, ret);
return(ret);
}
static int BioPuts(BIO *bio, const char *str) {
dprintf("BioPuts(%p, <string:%p>) called", bio, str);
return BioWrite(bio, str, (int) strlen(str));
}
static long BioCtrl(BIO *bio, int cmd, long num, void *ptr) {
Tcl_Channel chan;
long ret = 1;
chan = Tls_GetParent((State *) BIO_get_data(bio), 0);
dprintf("BioCtrl(%p, 0x%x, 0x%lx, %p)", (void *) bio, cmd, num, ptr);
dprintf("Got BIO_CTRL_RESET");
num = 0;
ret = 0;
break;
case BIO_C_FILE_SEEK:
dprintf("Got BIO_C_FILE_SEEK");
ret = 0;
break;
case BIO_C_FILE_TELL:
dprintf("Got BIO_C_FILE_TELL");
ret = 0;
break;
case BIO_CTRL_INFO:
dprintf("Got BIO_CTRL_INFO");
ret = 1;
break;
case BIO_C_SET_FD:
dprintf("Unsupported call: BIO_C_SET_FD");
ret = -1;
break;
case BIO_C_GET_FD:
dprintf("Unsupported call: BIO_C_GET_FD");
ret = -1;
break;
case BIO_CTRL_GET_CLOSE:
dprintf("Got BIO_CTRL_CLOSE");
ret = BIO_get_shutdown(bio);
break;
case BIO_CTRL_SET_CLOSE:
dprintf("Got BIO_SET_CLOSE");
BIO_set_shutdown(bio, num);
break;
case BIO_CTRL_EOF:
dprintf("Got BIO_CTRL_EOF");
ret = ((chan) ? Tcl_Eof(chan) : 1);
break;
case BIO_CTRL_PENDING:
dprintf("Got BIO_CTRL_PENDING");
ret = ((chan) ? ((Tcl_InputBuffered(chan) ? 1 : 0)) : 0);
dprintf("BIO_CTRL_PENDING(%d)", (int) ret);
break;
case BIO_CTRL_WPENDING:
dprintf("Got BIO_CTRL_WPENDING");
ret = 0;
break;
case BIO_CTRL_DUP:
dprintf("Got BIO_CTRL_DUP");
break;
case BIO_CTRL_FLUSH:
dprintf("Got BIO_CTRL_FLUSH");
ret = ((chan) && (Tcl_WriteRaw(chan, "", 0) >= 0) ? 1 : -1);
dprintf("BIO_CTRL_FLUSH returning value %li", ret);
break;
case BIO_CTRL_PUSH:
dprintf("Got BIO_CTRL_PUSH");
ret = 0;
break;
case BIO_CTRL_POP:
dprintf("Got BIO_CTRL_POP");
ret = 0;
break;
case BIO_CTRL_SET:
dprintf("Got BIO_CTRL_SET");
ret = 0;
break;
case BIO_CTRL_GET :
dprintf("Got BIO_CTRL_GET ");
ret = 0;
break;
#ifdef BIO_CTRL_GET_KTLS_SEND
case BIO_CTRL_GET_KTLS_SEND:
dprintf("Got BIO_CTRL_GET_KTLS_SEND");
ret = 0;
break;
#endif
#ifdef BIO_CTRL_GET_KTLS_RECV
case BIO_CTRL_GET_KTLS_RECV:
dprintf("Got BIO_CTRL_GET_KTLS_RECV");
ret = 0;
break;
#endif
default:
dprintf("Got unknown control command (%i)", cmd);
ret = 0;
break;
}
return(ret);
}
static int BioNew(BIO *bio) {
dprintf("BioNew(%p) called", bio);
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if (BIO_should_write(bio)) {
dprintf("Setting should retry write flag");
BIO_set_retry_write(bio);
}
}
dprintf("BioRead(%p, <buf>, %d) [%p] returning %" TCL_SIZE_MODIFIER "d", (void *) bio,
bufLen, (void *) chan, ret);
return((int) ret);
}
static int BioPuts(BIO *bio, const char *str) {
dprintf("BioPuts(%p, <string:%p>) called", bio, str);
return BioWrite(bio, str, (int) strlen(str));
}
static long BioCtrl(BIO *bio, int cmd, long num, void *ptr) {
Tcl_Channel chan;
long ret = 1;
chan = Tls_GetParent((State *) BIO_get_data(bio), 0);
dprintf("BioCtrl(%p, 0x%x, 0x%lx, %p)", (void *) bio, cmd, num, ptr);
switch (cmd) {
case BIO_CTRL_RESET:
dprintf("Got BIO_CTRL_RESET");
num = 0;
ret = 0;
break;
case BIO_C_FILE_SEEK:
dprintf("Got BIO_C_FILE_SEEK");
ret = 0;
break;
case BIO_C_FILE_TELL:
dprintf("Got BIO_C_FILE_TELL");
ret = 0;
break;
case BIO_CTRL_INFO:
dprintf("Got BIO_CTRL_INFO");
ret = 1;
break;
case BIO_C_SET_FD:
dprintf("Unsupported call: BIO_C_SET_FD");
ret = -1;
break;
case BIO_C_GET_FD:
dprintf("Unsupported call: BIO_C_GET_FD");
ret = -1;
break;
case BIO_CTRL_GET_CLOSE:
dprintf("Got BIO_CTRL_CLOSE");
ret = BIO_get_shutdown(bio);
break;
case BIO_CTRL_SET_CLOSE:
dprintf("Got BIO_SET_CLOSE");
BIO_set_shutdown(bio, num);
break;
case BIO_CTRL_EOF:
dprintf("Got BIO_CTRL_EOF");
ret = ((chan) ? Tcl_Eof(chan) : 1);
break;
case BIO_CTRL_PENDING:
dprintf("Got BIO_CTRL_PENDING");
ret = ((chan) ? ((Tcl_InputBuffered(chan) ? 1 : 0)) : 0);
dprintf("BIO_CTRL_PENDING(%d)", (int) ret);
break;
case BIO_CTRL_WPENDING:
dprintf("Got BIO_CTRL_WPENDING");
ret = 0;
break;
case BIO_CTRL_DUP:
dprintf("Got BIO_CTRL_DUP");
break;
case BIO_CTRL_FLUSH:
dprintf("Got BIO_CTRL_FLUSH");
ret = ((chan) && (Tcl_WriteRaw(chan, "", 0) >= 0) ? 1 : -1);
dprintf("BIO_CTRL_FLUSH returning value %li", ret);
break;
case BIO_CTRL_PUSH:
dprintf("Got BIO_CTRL_PUSH");
ret = 0;
break;
case BIO_CTRL_POP:
dprintf("Got BIO_CTRL_POP");
ret = 0;
break;
case BIO_CTRL_SET:
dprintf("Got BIO_CTRL_SET");
ret = 0;
break;
case BIO_CTRL_GET :
dprintf("Got BIO_CTRL_GET ");
ret = 0;
break;
#ifdef BIO_CTRL_GET_KTLS_SEND
case BIO_CTRL_GET_KTLS_SEND:
dprintf("Got BIO_CTRL_GET_KTLS_SEND");
ret = 0;
break;
#endif
#ifdef BIO_CTRL_GET_KTLS_RECV
case BIO_CTRL_GET_KTLS_RECV:
dprintf("Got BIO_CTRL_GET_KTLS_RECV");
ret = 0;
break;
#endif
default:
dprintf("Got unknown control command (%i)", cmd);
ret = 0;
break;
}
return(ret);
}
static int BioNew(BIO *bio) {
dprintf("BioNew(%p) called", bio);
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