Small Issues & Maintenance

-=-=-=-=-=-=-=-=-=-=-=-=-=

-Begin work on Navigation Meshes (simple pathfinding for now, will improve soon)
-More doc on theme overriding
-Upgraded OpenSSL to version without bugs
-Misc bugfixes

1 files changed, 504 insertions, 0 deletions

diff --git a/drivers/builtin_openssl2/crypto/ocsp/ocsp_ht.c b/drivers/builtin_openssl2/crypto/ocsp/ocsp_ht.c
new file mode 100644
index 0000000000..af5fc16691
--- /dev/null
+++ b/drivers/builtin_openssl2/crypto/ocsp/ocsp_ht.c
@@ -0,0 +1,504 @@
+/* ocsp_ht.c */
+/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
+ * project 2006.
+ */
+/* ====================================================================
+ * Copyright (c) 2006 The OpenSSL Project.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer. 
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ *    software must display the following acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ *    endorse or promote products derived from this software without
+ *    prior written permission. For written permission, please contact
+ *    licensing@OpenSSL.org.
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ *    nor may "OpenSSL" appear in their names without prior written
+ *    permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ *    acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This product includes cryptographic software written by Eric Young
+ * (eay@cryptsoft.com).  This product includes software written by Tim
+ * Hudson (tjh@cryptsoft.com).
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <ctype.h>
+#include <string.h>
+#include "e_os.h"
+#include <openssl/asn1.h>
+#include <openssl/ocsp.h>
+#include <openssl/err.h>
+#include <openssl/buffer.h>
+#ifdef OPENSSL_SYS_SUNOS
+#define strtoul (unsigned long)strtol
+#endif /* OPENSSL_SYS_SUNOS */
+
+/* Stateful OCSP request code, supporting non-blocking I/O */
+
+/* Opaque OCSP request status structure */
+
+struct ocsp_req_ctx_st {
+	int state;		/* Current I/O state */
+	unsigned char *iobuf;	/* Line buffer */
+	int iobuflen;		/* Line buffer length */
+	BIO *io;		/* BIO to perform I/O with */
+	BIO *mem;		/* Memory BIO response is built into */
+	unsigned long asn1_len;	/* ASN1 length of response */
+	};
+
+#define OCSP_MAX_REQUEST_LENGTH	(100 * 1024)
+#define OCSP_MAX_LINE_LEN	4096;
+
+/* OCSP states */
+
+/* If set no reading should be performed */
+#define OHS_NOREAD		0x1000
+/* Error condition */
+#define OHS_ERROR		(0 | OHS_NOREAD)
+/* First line being read */
+#define OHS_FIRSTLINE		1
+/* MIME headers being read */
+#define OHS_HEADERS		2
+/* OCSP initial header (tag + length) being read */
+#define OHS_ASN1_HEADER		3
+/* OCSP content octets being read */
+#define OHS_ASN1_CONTENT	4
+/* Request being sent */
+#define OHS_ASN1_WRITE		(6 | OHS_NOREAD)
+/* Request being flushed */
+#define OHS_ASN1_FLUSH		(7 | OHS_NOREAD)
+/* Completed */
+#define OHS_DONE		(8 | OHS_NOREAD)
+
+
+static int parse_http_line1(char *line);
+
+void OCSP_REQ_CTX_free(OCSP_REQ_CTX *rctx)
+	{
+	if (rctx->mem)
+		BIO_free(rctx->mem);
+	if (rctx->iobuf)
+		OPENSSL_free(rctx->iobuf);
+	OPENSSL_free(rctx);
+	}
+
+int OCSP_REQ_CTX_set1_req(OCSP_REQ_CTX *rctx, OCSP_REQUEST *req)
+	{
+	static const char req_hdr[] =
+	"Content-Type: application/ocsp-request\r\n"
+	"Content-Length: %d\r\n\r\n";
+        if (BIO_printf(rctx->mem, req_hdr, i2d_OCSP_REQUEST(req, NULL)) <= 0)
+		return 0;
+        if (i2d_OCSP_REQUEST_bio(rctx->mem, req) <= 0)
+		return 0;
+	rctx->state = OHS_ASN1_WRITE;
+	rctx->asn1_len = BIO_get_mem_data(rctx->mem, NULL);
+	return 1;
+	}
+
+int OCSP_REQ_CTX_add1_header(OCSP_REQ_CTX *rctx,
+		const char *name, const char *value)
+	{
+	if (!name)
+		return 0;
+	if (BIO_puts(rctx->mem, name) <= 0)
+		return 0;
+	if (value)
+		{
+		if (BIO_write(rctx->mem, ": ", 2) != 2)
+			return 0;
+		if (BIO_puts(rctx->mem, value) <= 0)
+			return 0;
+		}
+	if (BIO_write(rctx->mem, "\r\n", 2) != 2)
+		return 0;
+	return 1;
+	}
+
+OCSP_REQ_CTX *OCSP_sendreq_new(BIO *io, char *path, OCSP_REQUEST *req,
+								int maxline)
+	{
+	static const char post_hdr[] = "POST %s HTTP/1.0\r\n";
+
+	OCSP_REQ_CTX *rctx;
+	rctx = OPENSSL_malloc(sizeof(OCSP_REQ_CTX));
+	rctx->state = OHS_ERROR;
+	rctx->mem = BIO_new(BIO_s_mem());
+	rctx->io = io;
+	rctx->asn1_len = 0;
+	if (maxline > 0)
+		rctx->iobuflen = maxline;
+	else
+		rctx->iobuflen = OCSP_MAX_LINE_LEN;
+	rctx->iobuf = OPENSSL_malloc(rctx->iobuflen);
+	if (!rctx->iobuf)
+		return 0;
+	if (!path)
+		path = "/";
+
+        if (BIO_printf(rctx->mem, post_hdr, path) <= 0)
+		return 0;
+
+	if (req && !OCSP_REQ_CTX_set1_req(rctx, req))
+		return 0;
+
+	return rctx;
+	}
+
+/* Parse the HTTP response. This will look like this:
+ * "HTTP/1.0 200 OK". We need to obtain the numeric code and
+ * (optional) informational message.
+ */
+
+static int parse_http_line1(char *line)
+	{
+	int retcode;
+	char *p, *q, *r;
+	/* Skip to first white space (passed protocol info) */
+
+	for(p = line; *p && !isspace((unsigned char)*p); p++)
+		continue;
+	if(!*p)
+		{
+		OCSPerr(OCSP_F_PARSE_HTTP_LINE1,
+					OCSP_R_SERVER_RESPONSE_PARSE_ERROR);
+		return 0;
+		}
+
+	/* Skip past white space to start of response code */
+	while(*p && isspace((unsigned char)*p))
+		p++;
+
+	if(!*p)
+		{
+		OCSPerr(OCSP_F_PARSE_HTTP_LINE1,
+					OCSP_R_SERVER_RESPONSE_PARSE_ERROR);
+		return 0;
+		}
+
+	/* Find end of response code: first whitespace after start of code */
+	for(q = p; *q && !isspace((unsigned char)*q); q++)
+		continue;
+
+	if(!*q)
+		{
+		OCSPerr(OCSP_F_PARSE_HTTP_LINE1,
+					OCSP_R_SERVER_RESPONSE_PARSE_ERROR);
+		return 0;
+		}
+
+	/* Set end of response code and start of message */ 
+	*q++ = 0;
+
+	/* Attempt to parse numeric code */
+	retcode = strtoul(p, &r, 10);
+
+	if(*r)
+		return 0;
+
+	/* Skip over any leading white space in message */
+	while(*q && isspace((unsigned char)*q))
+		q++;
+
+	if(*q)
+		{
+		/* Finally zap any trailing white space in message (include
+		 * CRLF) */
+
+		/* We know q has a non white space character so this is OK */
+		for(r = q + strlen(q) - 1; isspace((unsigned char)*r); r--)
+			*r = 0;
+		}
+	if(retcode != 200)
+		{
+		OCSPerr(OCSP_F_PARSE_HTTP_LINE1, OCSP_R_SERVER_RESPONSE_ERROR);
+		if(!*q)
+			ERR_add_error_data(2, "Code=", p);
+		else
+			ERR_add_error_data(4, "Code=", p, ",Reason=", q);
+		return 0;
+		}
+
+
+	return 1;
+
+	}
+
+int OCSP_sendreq_nbio(OCSP_RESPONSE **presp, OCSP_REQ_CTX *rctx)
+	{
+	int i, n;
+	const unsigned char *p;
+	next_io:
+	if (!(rctx->state & OHS_NOREAD))
+		{
+		n = BIO_read(rctx->io, rctx->iobuf, rctx->iobuflen);
+
+		if (n <= 0)
+			{
+			if (BIO_should_retry(rctx->io))
+				return -1;
+			return 0;
+			}
+
+		/* Write data to memory BIO */
+
+		if (BIO_write(rctx->mem, rctx->iobuf, n) != n)
+			return 0;
+		}
+
+	switch(rctx->state)
+		{
+
+		case OHS_ASN1_WRITE:
+		n = BIO_get_mem_data(rctx->mem, &p);
+
+		i = BIO_write(rctx->io,
+			p + (n - rctx->asn1_len), rctx->asn1_len);
+
+		if (i <= 0)
+			{
+			if (BIO_should_retry(rctx->io))
+				return -1;
+			rctx->state = OHS_ERROR;
+			return 0;
+			}
+
+		rctx->asn1_len -= i;
+
+		if (rctx->asn1_len > 0)
+			goto next_io;
+
+		rctx->state = OHS_ASN1_FLUSH;
+
+		(void)BIO_reset(rctx->mem);
+
+		case OHS_ASN1_FLUSH:
+
+		i = BIO_flush(rctx->io);
+
+		if (i > 0)
+			{
+			rctx->state = OHS_FIRSTLINE;
+			goto next_io;
+			}
+
+		if (BIO_should_retry(rctx->io))
+			return -1;
+
+		rctx->state = OHS_ERROR;
+		return 0;
+
+		case OHS_ERROR:
+		return 0;
+
+		case OHS_FIRSTLINE:
+		case OHS_HEADERS:
+
+		/* Attempt to read a line in */
+
+		next_line:
+		/* Due to &%^*$" memory BIO behaviour with BIO_gets we
+		 * have to check there's a complete line in there before
+		 * calling BIO_gets or we'll just get a partial read.
+		 */
+		n = BIO_get_mem_data(rctx->mem, &p);
+		if ((n <= 0) || !memchr(p, '\n', n))
+			{
+			if (n >= rctx->iobuflen)
+				{
+				rctx->state = OHS_ERROR;
+				return 0;
+				}
+			goto next_io;
+			}
+		n = BIO_gets(rctx->mem, (char *)rctx->iobuf, rctx->iobuflen);
+
+		if (n <= 0)
+			{
+			if (BIO_should_retry(rctx->mem))
+				goto next_io;
+			rctx->state = OHS_ERROR;
+			return 0;
+			}
+
+		/* Don't allow excessive lines */
+		if (n == rctx->iobuflen)
+			{
+			rctx->state = OHS_ERROR;
+			return 0;
+			}
+
+		/* First line */
+		if (rctx->state == OHS_FIRSTLINE)
+			{
+			if (parse_http_line1((char *)rctx->iobuf))
+				{
+				rctx->state = OHS_HEADERS;
+				goto next_line;
+				}
+			else
+				{
+				rctx->state = OHS_ERROR;
+				return 0;
+				}
+			}
+		else
+			{
+			/* Look for blank line: end of headers */
+			for (p = rctx->iobuf; *p; p++)
+				{
+				if ((*p != '\r') && (*p != '\n'))
+					break;
+				}
+			if (*p)
+				goto next_line;
+
+			rctx->state = OHS_ASN1_HEADER;
+
+			}
+ 
+		/* Fall thru */
+
+
+		case OHS_ASN1_HEADER:
+		/* Now reading ASN1 header: can read at least 2 bytes which
+		 * is enough for ASN1 SEQUENCE header and either length field
+		 * or at least the length of the length field.
+		 */
+		n = BIO_get_mem_data(rctx->mem, &p);
+		if (n < 2)
+			goto next_io;
+
+		/* Check it is an ASN1 SEQUENCE */
+		if (*p++ != (V_ASN1_SEQUENCE|V_ASN1_CONSTRUCTED))
+			{
+			rctx->state = OHS_ERROR;
+			return 0;
+			}
+
+		/* Check out length field */
+		if (*p & 0x80)
+			{
+			/* If MSB set on initial length octet we can now
+			 * always read 6 octets: make sure we have them.
+			 */
+			if (n < 6)
+				goto next_io;
+			n = *p & 0x7F;
+			/* Not NDEF or excessive length */
+			if (!n || (n > 4))
+				{
+				rctx->state = OHS_ERROR;
+				return 0;
+				}
+			p++;
+			rctx->asn1_len = 0;
+			for (i = 0; i < n; i++)
+				{
+				rctx->asn1_len <<= 8;
+				rctx->asn1_len |= *p++;
+				}
+
+			if (rctx->asn1_len > OCSP_MAX_REQUEST_LENGTH)
+				{
+				rctx->state = OHS_ERROR;
+				return 0;
+				}
+
+			rctx->asn1_len += n + 2;
+			}
+		else
+			rctx->asn1_len = *p + 2;
+
+		rctx->state = OHS_ASN1_CONTENT;
+
+		/* Fall thru */
+		
+		case OHS_ASN1_CONTENT:
+		n = BIO_get_mem_data(rctx->mem, &p);
+		if (n < (int)rctx->asn1_len)
+			goto next_io;
+
+
+		*presp = d2i_OCSP_RESPONSE(NULL, &p, rctx->asn1_len);
+		if (*presp)
+			{
+			rctx->state = OHS_DONE;
+			return 1;
+			}
+
+		rctx->state = OHS_ERROR;
+		return 0;
+
+		break;
+
+		case OHS_DONE:
+		return 1;
+
+		}
+
+
+
+	return 0;
+
+
+	}
+
+/* Blocking OCSP request handler: now a special case of non-blocking I/O */
+
+OCSP_RESPONSE *OCSP_sendreq_bio(BIO *b, char *path, OCSP_REQUEST *req)
+	{
+	OCSP_RESPONSE *resp = NULL;
+	OCSP_REQ_CTX *ctx;
+	int rv;
+
+	ctx = OCSP_sendreq_new(b, path, req, -1);
+
+	do
+		{
+		rv = OCSP_sendreq_nbio(&resp, ctx);
+		} while ((rv == -1) && BIO_should_retry(b));
+
+	OCSP_REQ_CTX_free(ctx);
+
+	if (rv)
+		return resp;
+
+	return NULL;
+	}