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thread_analysis.c
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/* Analyzes the concurrent use of charon's threads
*
* Copyright (C) 2008 Andreas Steffen
*
* Copyright (C) secunet Security Networks AG
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define LOGFILE "moon.daemon.log"
#define LINE_LEN 2048
#define THREADS 99
typedef enum state_t state_t;
enum state_t {
STATE_IDLE = 0,
STATE_INIT = 1,
STATE_AUTH = 2,
STATE_BUSY = 3,
STATE_RETRY = 4,
STATE_ERROR = 5
};
typedef enum print_t print_t;
enum print_t {
MODE_ANY = 0,
MODE_ADD = 1,
MODE_DEL = 2
};
static char *state_names[] = { "idle", "init", "auth", "busy", "retry", "error" };
static int readline(FILE *fd, char *line)
{
while (fread(line, 1, 1, fd))
{
if (*line == '\n')
{
*line = '\0';
return 1;
}
line++;
}
*line = '\0';
return 0;
}
static void printline(state_t *state, char *timestamp)
{
int states[] = { 0, 0, 0, 0, 0};
int th, total ;
printf(" <tr>\n");
printf(" <td class=\"log\">%.15s</td>", timestamp);
for (th = 1; th <= THREADS; th++)
{
states[state[th]]++;
printf("<td class=\"%s\"></td>", state_names[state[th]]);
}
total = states[STATE_INIT] + states[STATE_AUTH] + states[STATE_BUSY] + states[STATE_RETRY];
printf("<td class=\"init\">%d</td><td class=\"auth\">%d</td><td class=\"busy\">%d</td>",
states[STATE_INIT], states[STATE_AUTH], total);
for (th = 10; th <= (THREADS + 2); th += 5)
{
printf("<td class=\"%s\"></td>", (th <= total + 2)? "busy":"idle");
}
printf("\n");
printf(" </tr>\n");
}
int main(int argc, char *argv[])
{
char line[LINE_LEN];
int section = 0;
int mode = MODE_ANY;
int th;
FILE *fd;
state_t state[THREADS + 1];
/* threads 1..5 and 9 are always busy */
for (th = 1; th <= THREADS; th++)
{
state[th] = (th <= 7 && th != 3)? STATE_BUSY : STATE_IDLE;
}
/* open the log file */
fd = fopen(LOGFILE, "r");
if (!fd)
{
printf("could not open log file '%s'\n", LOGFILE);
return 1;
}
printf("<html>\n");
printf("<head>\n");
printf(" <title>Charon Thread Analysis</title>\n");
printf(" <style>\n");
printf(" body { font: 11px verdana,arial, helvetica, sans-serif }\n");
printf(" td { font: 10px verdana,arial, helvetica, sans-serif;\n");
printf(" text-align: center; padding: 0px 1px 0px 1px; background: #FFFF66 }\n");
printf(" td.log { text-align: left; background: #FFFF66; white-space: nowrap }\n");
printf(" td.idle { background: #FFFF66 }\n");
printf(" td.init { background: #FFA522 }\n");
printf(" td.auth { background: #90EE90 }\n");
printf(" td.busy { background: #ADD8E6 }\n");
printf(" td.retry { background: #7B68EE }\n");
printf(" td.error { background: #FF6347 }\n");
printf(" hr { background-color: #000000; border: 0; height: 1px; }\n");
printf(" a:visited { color: #000000 }\n");
printf(" a:link { color: #000000 }\n");
printf(" a:hover { color: #0000FF }\n");
printf(" </style>\n");
printf("</head>\n");
printf("<body>\n");
printf(" <h1>Charon Thread Analysis</h1>\n");
printf(" <table>\n");
/* print table header */
printf(" <tr>\n");
printf(" <td class=\"log\">Timestamp</td>");
for (th = 1 ; th <= THREADS; th++)
{
printf("<td>%02d</td>", th);
}
printf("<td class=\"init\">I</td><td class=\"auth\">A</td><td class=\"busy\">B</td>");
for (th = 10; th <= (THREADS + 2); th += 5)
{
printf("<td class=\"busy\">%d</td>", (th == 100)? 99:th);
}
printf("\n");
printf(" </tr>\n");
while (readline(fd, line))
{
char *p_section, *p_charon, *p_thread, *p_log;
p_section = strstr(line, "---");
if (p_section)
{
printline(state, line);
mode = MODE_ANY;
if (section++ < 1)
{
continue;
}
else
{
break;
}
}
p_charon = strstr(line, "charon");
if (!p_charon)
{
continue;
}
/* determine thread */
p_thread = p_charon + 8;
th = atol(p_thread);
/* determine log message */
p_log = p_charon + 16;
if (strstr(p_log, "received packet"))
{
if (mode == MODE_DEL)
{
printline(state, line);
}
mode = MODE_ADD;
if (state[th] != STATE_IDLE)
{
state[th] = STATE_ERROR;
}
else
{
state[th] = STATE_BUSY;
}
}
if (strstr(p_log, "sending packet"))
{
if (mode == MODE_ADD)
{
printline(state, line);
}
mode = MODE_DEL;
if (state[th] == STATE_IDLE)
{
state[th] = STATE_ERROR;
}
else
{
state[th] = STATE_IDLE;
}
}
if (strstr(p_log, "parsed IKE_SA_INIT request"))
{
if (state[th] != STATE_BUSY)
{
state[th] = STATE_ERROR;
}
else
{
state[th] = STATE_INIT;
}
}
if (strstr(p_log, "parsed IKE_AUTH request"))
{
if (state[th] != STATE_BUSY)
{
state[th] = STATE_ERROR;
}
else
{
state[th] = STATE_AUTH;
}
}
if (strstr(p_log, "already processing"))
{
if (state[th] != STATE_IDLE)
{
state[th] = STATE_ERROR;
}
else
{
state[th] = STATE_RETRY;
}
printline(state, line);
mode = MODE_ANY;
state[th] = STATE_IDLE;
}
}
printf(" </table>\n");
printf(" <p>\n");
printf(" <table>\n");
printf(" <tr>\n");
printf(" <td class=\"init\"> I </td><td>IKE_SA_INIT Thread </td>\n");
printf(" <td class=\"auth\"> A </td><td>IKE_AUTH Thread </td>\n");
printf(" <td class=\"retry\"> R </td><td>Retransmit Thread </td>\n");
printf(" <td class=\"busy\"> B </td><td>Busy Thread </td>\n");
printf(" <td class=\"error\"> E </td><td>State Error </td>\n");
printf(" </tr>\n");
printf(" </table>\n");
printf(" <p>\n");
printf("</body>\n");
printf("</html>\n");
fclose(fd);
return 0;
}