staging: add mausezahn staging directory

After some back and forth, we decided that it is easier to maintain
mausezahn in a staging directory until it is fully reworked and
cleaned up to be ready to be fully integrated. This way, it is better
than having it in a separate branch, and we can also accept patches
from outside more easily. Also, while at it, fix up some function
mismatches with libcli.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>

1 files changed, 248 insertions, 0 deletions

diff --git a/staging/syslog.c b/staging/syslog.c
new file mode 100644
index 0000000..c8fac9b
--- /dev/null
+++ b/staging/syslog.c
@@ -0,0 +1,248 @@
+/*
+ * Mausezahn - A fast versatile traffic generator
+ * Copyright (C) 2008,2009 Herbert Haas
+ * 
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License version 2 as published by the 
+ * Free Software Foundation.
+ * 
+ * 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.
+ * 
+ * You should have received a copy of the GNU General Public License along with 
+ * this program; if not, see http://www.gnu.org/licenses/gpl-2.0.html
+ * 
+*/
+
+
+#include "mz.h"
+#include "cli.h"
+
+#define MZ_SYSLOG_HELP \
+   		"| Syslog type: Send (traditional) Syslog packets via UDP.\n" \
+		"|\n" \
+		"| Parameters:\n" \
+		"|\n" \
+		"|  severity, sev  0-7            .... Severity level from Emergency (0) to Debug (7)\n" \
+		"|  facility, fac  0-23           .... Facility number\n" \
+		"|\n" \
+		"|  time           hh:mm:ss       .... Local time, 24-hour format\n" \
+		"|  month, mon     Mmm            .... Current month, 1-12\n" \
+		"|  day            dd             .... Current day, 0-31\n" \
+		"|\n" \
+		"|  host           max 314 bytes  .... Name or IP Address of sending host\n" \
+		"|\n" \
+		"| Defaults:\n" \
+		"|\n" \
+		"|  Per default the severity \"Warning\" (4), the facility \"Security\" (4), and the\n" \
+		"|  current time stamp is used. If no host is given, host is set to \"MZ\"\n"  \
+		"|\n" \
+		"| You can define the Syslog message itself using the -P flag. For example:\n" \
+		"|\n" \
+		"|   mz eth0 -t syslog sev=3 -P \"You have been mausezahned.\"\n" \
+		"|\n" \
+		"| By the way, mz (by intention) does not check if your timestamp is valid according\n" \
+                "| calendar rules. It is generally recommended to follow the Darwin Era Calendar ;-)\n" \
+		"|\n"
+
+
+
+// RFC 3164 states that a Syslog message consists of three parts: PRI, HEADER, and MSG.
+// 
+//   1) PRI: contains facility(f) and severity(s), using the syntax "<N>" where N = f * 8 + s
+// 
+//   2) HEADER: contains a timestamp and a sender-ID (name or IP), for example "May 25 23:42:42 Mausezahnhost"
+//      Note that instead of leading zeroes a space must be used for the day e. g. "May  5".
+//      However leading zeroes are required for hour, minutes, seconds, e. g. "01:05:09"
+//    
+//   3) MSG: consists of TAG and CONTENT field. The TAG identifies the program or process and 
+//      must not exceed 32 characters. Typically the TAG and the CONTENT fields are delimited
+//      via either a "[", or a colon (:) or a space. The CONTENT field is a simple text.
+//      
+//  EXAMPLE from RFC 3164:
+//  
+//      <34>Oct 11 22:14:15 mymachine su: 'su root' failed for lonvick on /dev/pts/8
+//      
+//  EXAMPLE from Cisco Router:
+//        
+//      *Mar 23 13:45:08.727: %ENVMON-3-FAN_FAILED: Fan 2 not rotating
+//                  
+
+
+int create_syslog_packet()
+{
+	unsigned int pri, sev, fac, day, curday, mon, curmon;
+	char  lt[8], host[314];
+	char *Months[12] = 
+	{ "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"  };
+	
+	
+	time_t curtime;
+	struct tm curtime_broken;
+	char argval[MAX_PAYLOAD_SIZE];
+	int ca=0, aa;
+	
+	aa=number_of_args(tx.arg_string);
+	
+	if ( (getarg(tx.arg_string,"help", NULL)==1) && (mode==SYSLOG) )
+	{
+		ca++; // counts each argument
+		if (mz_port)
+		{
+			cli_print(gcli, "%s", MZ_SYSLOG_HELP);
+			return -1;
+		}
+		else
+		{
+			fprintf(stderr,"\n" 
+				MAUSEZAHN_VERSION
+				"\n%s", MZ_SYSLOG_HELP);
+			
+			exit(0);
+		}
+	}
+   
+   
+   if ( (getarg(tx.arg_string,"severity", argval)==1) || 
+	(getarg(tx.arg_string,"sev", argval)==1) )
+     {
+	     ca++; // counts each argument
+	     sev = (unsigned int) str2int(argval);
+     }
+   else
+     {		
+	     sev = 4;
+     }
+
+   if ( (getarg(tx.arg_string,"facility", argval)==1) || 
+	(getarg(tx.arg_string,"fac", argval)==1) )
+     {
+	     ca++; // counts each argument
+	     fac = (unsigned int) str2int(argval);
+     }
+   else
+     {
+	     fac = 4;
+     }
+
+   
+   time(&curtime);
+   localtime_r (&curtime, &curtime_broken);
+
+
+   
+   if (getarg(tx.arg_string,"time", argval)==1)
+     {
+	     ca++; // counts each argument
+	     strncpy(lt,argval,8);
+	     // TODO: check if specified timestamp has valid format, e. g. 15:03:22
+     }
+   else
+     {
+	     timestamp_hms (lt);
+     }
+
+
+   
+   curmon = curtime_broken.tm_mon; // Note that Jan = 0, ..., Dec = 11 !!!
+   
+   if ( (getarg(tx.arg_string,"month", argval)==1) || 
+	(getarg(tx.arg_string,"mon", argval)==1) )
+     {
+	ca++; // counts each argument
+	mon = (unsigned int) str2int(argval);
+	if ( (mon<1) || (mon>12) )
+	  {
+	     fprintf(stderr, " mz/syslog: Invalid month; will use current month (%i)!\n", curmon+1);
+	     mon = curmon;
+	  }
+     }
+   else
+     {
+	mon = curmon;
+     }
+
+   curday = curtime_broken.tm_mday; 
+   
+   if (getarg(tx.arg_string,"day", argval)==1) 
+     {
+        ca++; // counts each argument
+	day = (unsigned int) str2int(argval);
+	if ( (day<1) || (day>31) )
+	  {
+	     fprintf(stderr, " mz/syslog: Invalid day; will use current day(%i)!\n", curday);
+	     day = curday;
+	  }
+     }
+   else
+     {
+	day = curday;
+     }
+   
+
+   if (getarg(tx.arg_string,"host", argval)==1)
+     {
+        ca++; // counts each argument
+	strncpy(host,argval,314);  // 314 is just an arbitrary number ;-)
+     }
+   else
+     {
+	strcpy(host, "MZ42"); 
+     }
+
+  
+   // CHECK SURPLUS ARGUMENTS
+   if (aa!=ca) {
+	   fprintf(stderr, "WARNING: %i unmatched arguments within argument string!\n", aa-ca);
+   }
+	
+	
+   // Now put everything together:
+   // 
+   //  Again the EXAMPLE from RFC 3164:
+   //  
+   //      <34>Oct 11 22:14:15 mymachine su: 'su root' failed for lonvick on /dev/pts/8
+   //      
+
+   
+   pri = 8*fac+sev;
+
+   sprintf((char*) tx.udp_payload, "<%d>%s %2i %s %s ",
+	   pri,
+	   Months[mon],
+	   day,
+	   lt,
+	   host);
+
+   if (tx.ascii) // ASCII PAYLOAD overrides hex payload
+     {
+	strncat((char *)tx.udp_payload, (char *)tx.ascii_payload, 2048);
+	tx.ascii=0; // avoid that 'create_udp_packet' overwrites this!
+     }     
+   else
+     {
+	strcat((char *)tx.udp_payload, "%MZSYS-42-CRN: Main reactor exceeded critical temperature!");
+     }
+   
+
+   tx.udp_payload_s = strlen((char *)tx.udp_payload);   
+
+   tx.dp = 514;
+   tx.sp = 514;
+     
+   tx.udp_len = 8 + tx.udp_payload_s;
+	
+   if (verbose)
+     {
+	fprintf(stderr, "Syslog: %s\n", tx.udp_payload);
+     }
+   
+
+   return 0;
+   
+}
+
+
+