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3 Commits

Author SHA1 Message Date
Eric Pooch 9485de4ea1 Option to build with MPW 3.5 libraries.
ElWhip can build and run with MPW 3.5 libraries, but not on older systems.
Fixed Mac linefeeds in Makefile so that MPW BuildProgram command works properly.
2020-04-14 14:19:57 -07:00
Eric Pooch e55a724cb2 Improved building disk images, eliminated .rsrc file for icons 2018-03-24 14:56:46 -07:00
Eric Pooch 166060cfad Updates to documentation and README formatting. 2018-03-16 19:57:11 -07:00
10 changed files with 133 additions and 332 deletions

1
.gitignore vendored
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@ -1,5 +1,6 @@
.DS_Store
*.o
*.swp
/ports/mac/ElWhip-HTTPD
/ports/mac/ElWhip\ 0.*
/ports/win32/msvc/Debug

124
README.md Normal file
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@ -0,0 +1,124 @@
# ElWhip 0.07
This is a port of the lwip network stack and PPP over serial protocol for early Macintosh computers. It has been tested on a Macintosh SE running System 7.1 and a virtual Macintosh 128K with 64K ROMs. It will not be able to close the PPP session on quit on a Mac 128K due to memory limitations.
## Web server configuration:
The web server does not require the HTML files to have the HTTP headers on the top. Only files with an extension will be loaded by the server (eg: ".html").
## PPP configuration:
On Mac OS X 10.4 (and probably later):
### /etc/ppp/options file:
---
```
asyncmap 0
proxyarp
lock
```
---
### /etc/ppp/options.cu.usbserial file:
Replace cu.usbserial with the name of your serial device in /dev/
use the correct IP addresses for your setup
---
```
# Baud rate of the connection. ElWhip uses 19200.
19200
# Don't use the modem control lines.
local
# Try to reopen the connection it it is terminated.
persist
# Don't require the peer to authenticate.
noauth
# Disable negotiation of Van Jacobson style IP header compression.
novj
# IP address to be given to peer.
:192.168.11.130
# IP address of the DNS server for the peer.
ms-dns 192.168.11.1
# Enables IP forwarding on linux
ktune
# Add an entry for the peer to this system's ARP table.
proxyarp
```
---
### Running PPP from the command line:
$ pppd -d cu.usbserial
(Replace cu.usbserial with the name of your serial device)
### Forwarding requests from LAN on Mac OS X:
$ sudo sysctl -w net.inet.ip.forwarding=1
## Running ElWhip:
Just double-click the application once the modem port is connected to a computer running PPP. The application will try to negotiate a connection. Within a few seconds you should see the PPP phase increase to 7 and see the IP address information that was negotiated. A few seconds later, the web server will start.
## Connecting to ElWhip:
From an appropriately networked computer, you can open a web browser and connect to the website.
---
Copyrights:
ElWhip Copyright (c) 2014, 2015 Eric Pooch
---
```
/* lwIP is licenced under the BSD licence:
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* 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. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS 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 AUTHOR 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.
*
* Author: Adam Dunkels <adam@sics.se>
*
*/
*****************************************************************************
* Point to Point Protocol.
*
* Copyright (c) 1984-2000 Carnegie Mellon University. All rights reserved.
*
* "This product includes software developed by Computing Services
* at Carnegie Mellon University (http://www.cmu.edu/computing/)."
*
*
* Copyright (c) 2003 by Marc Boucher, Services Informatiques (MBSI) inc.
* portions Copyright (c) 1997 Global Election Systems Inc.
*
*
*
* THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS *AS IS* AND ANY EXPRESS 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 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.
*
***************************************************************************
```

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@ -1,15 +0,0 @@
diff --git a/apps/httpserver_raw/httpd.h b/apps/httpserver_raw/httpd.h
index 3962f72..e0a9d18 100644
--- a/apps/httpserver_raw/httpd.h
+++ b/apps/httpserver_raw/httpd.h
@@ -59,6 +59,10 @@ extern "C" {
#define LWIP_HTTPD_SUPPORT_POST 0
#endif
+/** Set this to 1 to support HTTP HEAD */
+#ifndef LWIP_HTTPD_SUPPORT_HEAD
+#define LWIP_HTTPD_SUPPORT_HEAD 0
+#endif
#if LWIP_HTTPD_CGI

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@ -1,311 +0,0 @@
diff --git a/apps/httpserver_raw/httpd.c b/apps/httpserver_raw/httpd.c
index 772b179..b6199a4 100644
--- a/apps/httpserver_raw/httpd.c
+++ b/apps/httpserver_raw/httpd.c
@@ -317,6 +317,17 @@ static char http_post_response_filename[LWIP_HTTPD_POST_MAX_RESPONSE_URI_LEN+1];
#define NUM_FILE_HDR_STRINGS 3
#endif /* LWIP_HTTPD_DYNAMIC_HEADERS */
+#if LWIP_HTTPD_SUPPORT_HEAD || LWIP_HTTPD_SUPPORT_POST || LWIP_HTTPD_SUPPORT_V09
+enum request_method {
+ METHOD_UNK, /* Unknown method */
+ METHOD_GET, /* HTTP 1.0 spec 8.1 - GET */
+ METHOD_HEAD, /* HTTP 1.0 spec 8.2 - HEAD */
+ METHOD_POST, /* HTTP 1.0 spec 8.3 - POST */
+ METHOD_V09_GET = 9 /* HTTP 0.9 - GET */
+};
+#endif /* LWIP_HTTPD_SUPPORT_HEAD || LWIP_HTTPD_SUPPORT_POST || LWIP_HTTPD_SUPPORT_V09*/
+
+
#if LWIP_HTTPD_SSI
#define HTTPD_LAST_TAG_PART 0xFFFF
@@ -370,6 +381,9 @@ struct http_state {
#if LWIP_HTTPD_SUPPORT_11_KEEPALIVE
u8_t keepalive;
#endif /* LWIP_HTTPD_SUPPORT_11_KEEPALIVE */
+#if LWIP_HTTPD_SUPPORT_HEAD || LWIP_HTTPD_SUPPORT_POST || LWIP_HTTPD_SUPPORT_V09
+ int method;
+#endif /* LWIP_HTTPD_SUPPORT_HEAD || LWIP_HTTPD_SUPPORT_POST || LWIP_HTTPD_SUPPORT_V09 */
#if LWIP_HTTPD_SSI
struct http_ssi_state *ssi;
#endif /* LWIP_HTTPD_SSI */
@@ -398,8 +412,8 @@ struct http_state {
static err_t http_close_conn(struct tcp_pcb *pcb, struct http_state *hs);
static err_t http_close_or_abort_conn(struct tcp_pcb *pcb, struct http_state *hs, u8_t abort_conn);
-static err_t http_find_file(struct http_state *hs, const char *uri, int is_09);
-static err_t http_init_file(struct http_state *hs, struct fs_file *file, int is_09, const char *uri, u8_t tag_check);
+static err_t http_find_file(struct http_state *hs, const char *uri);
+static err_t http_init_file(struct http_state *hs, struct fs_file *file, const char *uri, u8_t tag_check);
static err_t http_poll(void *arg, struct tcp_pcb *pcb);
static u8_t http_check_eof(struct tcp_pcb *pcb, struct http_state *hs);
#if LWIP_HTTPD_FS_ASYNC_READ
@@ -706,7 +720,6 @@ http_close_or_abort_conn(struct tcp_pcb *pcb, struct http_state *hs, u8_t abort_
}
#endif /* LWIP_HTTPD_SUPPORT_POST*/
-
tcp_arg(pcb, NULL);
tcp_recv(pcb, NULL);
tcp_err(pcb, NULL);
@@ -1620,7 +1633,7 @@ http_find_error_file(struct http_state *hs, u16_t error_nr)
}
}
}
- return http_init_file(hs, &hs->file_handle, 0, NULL, 0);
+ return http_init_file(hs, &hs->file_handle, NULL, 0);
}
#else /* LWIP_HTTPD_SUPPORT_EXTSTATUS */
#define http_find_error_file(hs, error_nr) ERR_ARG
@@ -1677,7 +1690,7 @@ http_handle_post_finished(struct http_state *hs)
/* NULL-terminate the buffer */
http_post_response_filename[0] = 0;
httpd_post_finished(hs, http_post_response_filename, LWIP_HTTPD_POST_MAX_RESPONSE_URI_LEN);
- return http_find_file(hs, http_post_response_filename, 0);
+ return http_find_file(hs, http_post_response_filename);
}
/** Pass received POST body data to the application and correctly handle
@@ -1706,11 +1719,11 @@ http_post_rxpbuf(struct http_state *hs, struct pbuf *p)
hs->post_content_len_left = 0;
}
if (hs->post_content_len_left == 0) {
-#if LWIP_HTTPD_SUPPORT_POST && LWIP_HTTPD_POST_MANUAL_WND
+#if LWIP_HTTPD_POST_MANUAL_WND
if (hs->unrecved_bytes != 0) {
return ERR_OK;
}
-#endif /* LWIP_HTTPD_SUPPORT_POST && LWIP_HTTPD_POST_MANUAL_WND */
+#endif /* LWIP_HTTPD_POST_MANUAL_WND */
/* application error or POST finished */
return http_handle_post_finished(hs);
}
@@ -1792,7 +1805,7 @@ http_post_request(struct pbuf *inp, struct http_state *hs,
}
} else {
/* return file passed from application */
- return http_find_file(hs, http_post_response_filename, 0);
+ return http_find_file(hs, http_post_response_filename);
}
} else {
LWIP_DEBUGF(HTTPD_DEBUG, ("POST received invalid Content-Length: %s\n",
@@ -1946,11 +1959,7 @@ http_parse_request(struct pbuf *inp, struct http_state *hs, struct tcp_pcb *pcb)
if (data_len >= MIN_REQ_LEN) {
/* wait for CRLF before parsing anything */
crlf = strnstr(data, CRLF, data_len);
- if (crlf != NULL) {
-#if LWIP_HTTPD_SUPPORT_POST
- int is_post = 0;
-#endif /* LWIP_HTTPD_SUPPORT_POST */
- int is_09 = 0;
+ if (crlf != NULL) {
char *sp1, *sp2;
u16_t left_len, uri_len;
LWIP_DEBUGF(HTTPD_DEBUG | LWIP_DBG_TRACE, ("CRLF received, parsing request\n"));
@@ -1959,16 +1968,27 @@ http_parse_request(struct pbuf *inp, struct http_state *hs, struct tcp_pcb *pcb)
sp1 = data + 3;
/* received GET request */
LWIP_DEBUGF(HTTPD_DEBUG | LWIP_DBG_TRACE, ("Received GET request\"\n"));
+#if LWIP_HTTPD_SUPPORT_HEAD || LWIP_HTTPD_SUPPORT_POST || LWIP_HTTPD_SUPPORT_V09
+ hs->method = METHOD_GET;
+#endif /* LWIP_HTTPD_SUPPORT_HEAD || LWIP_HTTPD_SUPPORT_POST || LWIP_HTTPD_SUPPORT_V09 */
+#if LWIP_HTTPD_SUPPORT_HEAD
+ } else if (!strncmp(data, "HEAD ", 5)) {
+ /* store request type */
+ hs->method = METHOD_HEAD;
+ sp1 = data + 4;
+ /* received HEAD request */
+ LWIP_DEBUGF(HTTPD_DEBUG | LWIP_DBG_TRACE, ("Received HEAD request\n"));
+#endif /* LWIP_HTTPD_SUPPORT_HEAD */
#if LWIP_HTTPD_SUPPORT_POST
} else if (!strncmp(data, "POST ", 5)) {
/* store request type */
- is_post = 1;
+ hs->method = METHOD_POST;
sp1 = data + 4;
- /* received GET request */
+ /* received POST request */
LWIP_DEBUGF(HTTPD_DEBUG | LWIP_DBG_TRACE, ("Received POST request\n"));
#endif /* LWIP_HTTPD_SUPPORT_POST */
} else {
- /* null-terminate the METHOD (pbuf is freed anyway wen returning) */
+ /* null-terminate the METHOD (pbuf is freed anyway when returning) */
data[4] = 0;
/* unsupported method! */
LWIP_DEBUGF(HTTPD_DEBUG, ("Unsupported request method (not implemented): \"%s\"\n",
@@ -1982,32 +2002,33 @@ http_parse_request(struct pbuf *inp, struct http_state *hs, struct tcp_pcb *pcb)
if (sp2 == NULL) {
/* HTTP 0.9: respond with correct protocol version */
sp2 = strnstr(sp1 + 1, CRLF, left_len);
- is_09 = 1;
-#if LWIP_HTTPD_SUPPORT_POST
- if (is_post) {
- /* HTTP/0.9 does not support POST */
+#if LWIP_HTTPD_SUPPORT_POST || LWIP_HTTPD_SUPPORT_HEAD
+ if (hs->method != METHOD_GET) {
+ /* HTTP/0.9 only supports GET method */
goto badrequest;
}
-#endif /* LWIP_HTTPD_SUPPORT_POST */
+#endif /* LWIP_HTTPD_SUPPORT_POST || LWIP_HTTPD_SUPPORT_HEAD */
+ hs->method = METHOD_V09_GET;
}
#endif /* LWIP_HTTPD_SUPPORT_V09 */
+
uri_len = sp2 - (sp1 + 1);
if ((sp2 != 0) && (sp2 > sp1)) {
/* wait for CRLFCRLF (indicating end of HTTP headers) before parsing anything */
if (strnstr(data, CRLF CRLF, data_len) != NULL) {
char *uri = sp1 + 1;
#if LWIP_HTTPD_SUPPORT_11_KEEPALIVE
- if (!is_09 && strnstr(data, HTTP11_CONNECTIONKEEPALIVE, data_len)) {
+ if ((hs->method != METHOD_V09_GET && strnstr(data, HTTP11_CONNECTIONKEEPALIVE, data_len)) {
hs->keepalive = 1;
}
#endif /* LWIP_HTTPD_SUPPORT_11_KEEPALIVE */
- /* null-terminate the METHOD (pbuf is freed anyway wen returning) */
+ /* null-terminate the METHOD (pbuf is freed anyway when returning) */
*sp1 = 0;
uri[uri_len] = 0;
LWIP_DEBUGF(HTTPD_DEBUG, ("Received \"%s\" request for URI: \"%s\"\n",
data, uri));
#if LWIP_HTTPD_SUPPORT_POST
- if (is_post) {
+ if (method == METHOD_POST) {
#if LWIP_HTTPD_SUPPORT_REQUESTLIST
struct pbuf *q = hs->req;
#else /* LWIP_HTTPD_SUPPORT_REQUESTLIST */
@@ -2027,7 +2048,7 @@ http_parse_request(struct pbuf *inp, struct http_state *hs, struct tcp_pcb *pcb)
} else
#endif /* LWIP_HTTPD_SUPPORT_POST */
{
- return http_find_file(hs, uri, is_09);
+ return http_find_file(hs, uri);
}
}
} else {
@@ -2045,9 +2066,9 @@ http_parse_request(struct pbuf *inp, struct http_state *hs, struct tcp_pcb *pcb)
} else
#endif /* LWIP_HTTPD_SUPPORT_REQUESTLIST */
{
-#if LWIP_HTTPD_SUPPORT_POST
+#if LWIP_HTTPD_SUPPORT_POST || LWIP_HTTPD_SUPPORT_HEAD
badrequest:
-#endif /* LWIP_HTTPD_SUPPORT_POST */
+#endif /* LWIP_HTTPD_SUPPORT_POST || LWIP_HTTPD_SUPPORT_HEAD */
LWIP_DEBUGF(HTTPD_DEBUG, ("bad request\n"));
/* could not parse request */
return http_find_error_file(hs, 400);
@@ -2059,12 +2080,11 @@ badrequest:
*
* @param hs the connection state
* @param uri the HTTP header URI
- * @param is_09 1 if the request is HTTP/0.9 (no HTTP headers in response)
* @return ERR_OK if file was found and hs has been initialized correctly
* another err_t otherwise
*/
static err_t
-http_find_file(struct http_state *hs, const char *uri, int is_09)
+http_find_file(struct http_state *hs, const char *uri)
{
size_t loop;
struct fs_file *file = NULL;
@@ -2154,7 +2174,7 @@ http_find_file(struct http_state *hs, const char *uri, int is_09)
}
#endif /* LWIP_HTTPD_SSI */
}
- return http_init_file(hs, file, is_09, uri, tag_check);
+ return http_init_file(hs, file, uri, tag_check);
}
/** Initialize a http connection with a file to send (if found).
@@ -2162,14 +2182,13 @@ http_find_file(struct http_state *hs, const char *uri, int is_09)
*
* @param hs http connection state
* @param file file structure to send (or NULL if not found)
- * @param is_09 1 if the request is HTTP/0.9 (no HTTP headers in response)
* @param uri the HTTP header URI
* @param tag_check enable SSI tag checking
* @return ERR_OK if file was found and hs has been initialized correctly
* another err_t otherwise
*/
static err_t
-http_init_file(struct http_state *hs, struct fs_file *file, int is_09, const char *uri, u8_t tag_check)
+http_init_file(struct http_state *hs, struct fs_file *file, const char *uri, u8_t tag_check)
{
if (file != NULL) {
/* file opened, initialise struct http_state */
@@ -2192,25 +2211,41 @@ http_init_file(struct http_state *hs, struct fs_file *file, int is_09, const cha
hs->file = (char*)file->data;
LWIP_ASSERT("File length must be positive!", (file->len >= 0));
hs->left = file->len;
+#if LWIP_HTTPD_DYNAMIC_FILE_READ
+ if (hs->file == NULL) {
+ /* Causes http_check_eof() to be called which will read the data. */
+ hs->left = 0;
+ }
+#endif
hs->retries = 0;
#if LWIP_HTTPD_TIMING
hs->time_started = sys_now();
#endif /* LWIP_HTTPD_TIMING */
#if !LWIP_HTTPD_DYNAMIC_HEADERS
LWIP_ASSERT("HTTP headers not included in file system", hs->handle->http_header_included);
-#endif /* !LWIP_HTTPD_DYNAMIC_HEADERS */
+#endif /* !LWIP_HTTPD_DYNAMIC_HEADERS */
+#if LWIP_HTTPD_SUPPORT_V09 || LWIP_HTTPD_SUPPORT_HEAD
+ if ( hs->handle->http_header_included && hs->method != METHOD_GET) {
+ /* Search for the end of the header. */
+ char *head_end = strnstr(hs->file, CRLF CRLF, hs->left);
+ size_t diff = head_end + 4 - hs->file;
+ if (head_end == NULL) {
+ LWIP_DEBUGF(HTTPD_DEBUG, ("Expected HTTP header, but couldn't find it.\n"));
+ hs->handle->http_header_included = 0;
#if LWIP_HTTPD_SUPPORT_V09
- if (hs->handle->http_header_included && is_09) {
- /* HTTP/0.9 responses are sent without HTTP header,
- search for the end of the header. */
- char *file_start = strnstr(hs->file, CRLF CRLF, hs->left);
- if (file_start != NULL) {
- size_t diff = file_start + 4 - hs->file;
- hs->file += diff;
- hs->left -= (u32_t)diff;
- }
- }
+ } else if (hs->method == METHOD_V09_GET) {
+ /* HTTP/0.9 responses are sent without HTTP header. */
+ hs->file += diff;
+ hs->left -= (u32_t)diff;
#endif /* LWIP_HTTPD_SUPPORT_V09*/
+#if LWIP_HTTPD_SUPPORT_HEAD
+ } else if (hs->method == METHOD_HEAD) {
+ /* HEAD method responses are sent with only HTTP header. */
+ hs->left = (u32_t)diff;
+#endif /* LWIP_HTTPD_SUPPORT_HEAD*/
+ }
+ }
+#endif /* LWIP_HTTPD_SUPPORT_V09 || LWIP_HTTPD_SUPPORT_HEAD*/
} else {
hs->handle = NULL;
hs->file = NULL;
@@ -2221,7 +2256,18 @@ http_init_file(struct http_state *hs, struct fs_file *file, int is_09, const cha
/* Determine the HTTP headers to send based on the file extension of
* the requested URI. */
if ((hs->handle == NULL) || !hs->handle->http_header_included) {
- get_http_headers(hs, (char*)uri);
+#if LWIP_HTTPD_SUPPORT_V09
+ if (hs->method != METHOD_V09_GET)
+ /* Don't load the header. */
+#endif /* LWIP_HTTPD_SUPPORT_V09*/
+ get_http_headers(hs, (char*)uri);
+#if LWIP_HTTPD_SUPPORT_HEAD
+ if (hs->method == METHOD_HEAD) {
+ /* Just the the header, not the file. */
+ hs->left = 0;
+ hs->handle->len = 0;
+ }
+#endif /* LWIP_HTTPD_SUPPORT_HEAD*/
}
#else /* LWIP_HTTPD_DYNAMIC_HEADERS */
LWIP_UNUSED_ARG(uri);

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@ -4,14 +4,15 @@
<table width="100%">
<tr valign="top"><td width="80">
<img src="/img/mac_hello.gif"
<img src="mac_hello.gif"
border="0" alt="Macintosh hello" title="Macintosh hello"></a>
</td><td width="500">
<h1>ElWhip: Featuring lwIP - A Lightweight TCP/IP Stack</h1>
<p>
The web page you are viewing is being served on an original
Macintosh with 512K RAM. This is the first known TCP/IP stack
running on a Macintosh with the original 64K ROMs. This is made
The web page you are viewing is hosted by ElWhip: an applcation capable
of serving webpages from an original 128K Macintosh with 64K ROMs,
running on Macintosh System 1.1. This is the first known TCP/IP stack
running on the original Macintosh hardware. This is made
possible by the lightweight TCP/IP stack <a
href="http://www.sics.se/~adam/lwip/">lwIP</a>.
</p>

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