2 * Copyright (c) 2001-2003 Swedish Institute of Computer Science.
5 * Redistribution and use in source and binary forms, with or without modification,
6 * are permitted provided that the following conditions are met:
8 * 1. Redistributions of source code must retain the above copyright notice,
9 * this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright notice,
11 * this list of conditions and the following disclaimer in the documentation
12 * and/or other materials provided with the distribution.
13 * 3. The name of the author may not be used to endorse or promote products
14 * derived from this software without specific prior written permission.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
19 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
20 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
21 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
24 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
27 * This file is part of the lwIP TCP/IP stack.
29 * Author: Adam Dunkels <adam@sics.se>
41 static char http_output_buffer[1024];
43 /*-----------------------------------------------------------------------------------*/
45 void handle_regs(struct fs_file *file)
47 file->len = snprintf(http_output_buffer, sizeof(http_output_buffer),
48 "<html><head><title>Registers</title></head><body>"
49 "<p>At the time you requested this page, the system's registers were:</p>"
51 "%%eax: 0x%08x %%ebx: 0x%08x %%ecx: 0x%08x %%edx: 0x%08x\n"
52 "%%ebp: 0x%08x %%esi: 0x%08x %%edi: 0x%08x %%esp: 0x%08x\n"
53 "%%cr0: 0x%08x %%cr3: 0x%08x %%eip: 0x%08x %%eflags: 0x%08x\n"
54 "</pre></tt></body></html>",
55 *(unsigned long*)0xAFFD0,
56 *(unsigned long*)0xAFFDC,
57 *(unsigned long*)0xAFFD4,
58 *(unsigned long*)0xAFFD8,
59 *(unsigned long*)0xAFFE4,
60 *(unsigned long*)0xAFFE8,
61 *(unsigned long*)0xAFFEC,
62 *(unsigned long*)0xAFFE0,
63 *(unsigned long*)0xAFFFC,
64 *(unsigned long*)0xAFFF8,
65 *(unsigned long*)0xAFFF0,
66 *(unsigned long*)0xAFFF4);
68 file->data = http_output_buffer;
71 #define LEFT (sizeof(http_output_buffer) - len)
73 void handle_backtrace(struct fs_file *file)
77 unsigned long *pebp, *peip;
81 char * buf = http_output_buffer;
83 strcpy(buf, "<html><head><title>Backtrace</title></head><body><tt><pre>");
85 ebp = *(unsigned long *)0xAFFE4;
86 cr3 = *(unsigned long *)0xAFFF8;
88 len += snprintf(buf + len, LEFT, "0x%08x, from\n", *(unsigned long*)0xAFFF0);
90 /* I never thought I'd do this again. */
91 while ((peip = demap(cr3, ebp+4)) != 0x0 && i--)
93 len += snprintf(buf + len, LEFT, "0x%08x, from\n", *peip);
95 pebp = demap(cr3, ebp);
98 len += snprintf(buf + len, LEFT, "<unreadable %ebp>\n");
101 if (ebp >= *pebp && *pebp)
103 len += snprintf(buf + len, LEFT, "<recursive %ebp>\n");
110 len += snprintf(buf + len, LEFT, "...\n");
112 len += snprintf(buf + len, LEFT, "<root>");
114 len += snprintf(buf + len, LEFT, "</pre></tt></body></html>");
120 void handle_reboot(struct fs_file *file)
123 file->data = "So long!";
128 /*-----------------------------------------------------------------------------------*/
130 fs_open(const char *name, struct fs_file *file)
132 const struct fsdata_file *f;
134 /* /registers.html is CGI */
135 if (!strcmp(name, "/registers.html"))
140 if (!strcmp(name, "/backtrace.html"))
142 handle_backtrace(file);
145 if (!strcmp(name, "/reboot"))
154 if (!strcmp(name, (const char*)f->name)) {
155 file->data = f->data;
156 file->len = f->len-1;
160 file->data = "You clown...";
164 /*-----------------------------------------------------------------------------------*/