NAME
rwtotal - Count how much traffic matched specific keys
SYNOPSIS
rwtotal {--sip-first-8 | --sip-first-16 | --sip-first-24 |
--sip-last-8 | --sip-last-16 | --dip-first-8 |
--dip-first-16 | --dip-first-24 | --dip-last-8 |
--dip-last-16 | --sport | --dport | --proto | --packets |
--bytes | --duration | --icmp-code}
[--summation] [--min-bytes=COUNT] [--max-bytes=COUNT]
[--min-packets=COUNT] [--max-packets=COUNT]
[--min-records=COUNT] [--max-records=COUNT] [--skip-zeroes]
[--no-titles] [--no-columns] [--column-separator=CHAR]
[--no-final-delimiter] [{--delimited | --delimited=CHAR}]
[--print-filenames] [--copy-input=PATH] [--output-path=PATH]
[--pager=PAGER_PROG] [--site-config-file=FILENAME]
{[--xargs] | [--xargs=FILENAME] | [FILE [FILE ...]]}
rwtotal --help
rwtotal --versionDESCRIPTION
rwtotal reads SiLK Flow records, bins those records by the user-specified specified key, computes the volume per bin (record count and sums of packets and bytes), and prints the bins and their volumes.
rwtotal reads SiLK Flow records from the files named on the command line or from the standard input when no file names are specified and --xargs is not present. To read the standard input in addition to the named files, use - or stdin as a file name. If an input file name ends in .gz, the file is uncompressed as it is read. When the --xargs switch is provided, rwtotal reads the names of the files to process from the named text file or from the standard input if no file name argument is provided to the switch. The input to --xargs must contain one file name per line.
By default, rwtotal prints a bin for every possible key, even when the volume for that bin is zero. Use the --skip-zeroes switch to suppress the printing of these empty bins.
Use the --summation switch to include a row giving the volume for all flow records.
The maximum key value that rwtotal supports is 16,777,215. When the key field is --bytes or --packets, rwtotal will create a bin for all unique values up to 16,777,214. The final bin (16,777,215) will consist of all values greater than 16,777,214.
OPTIONS
Option names may be abbreviated if the abbreviation is unique or is an exact match for an option. A parameter to an option may be specified as --arg=param or --arg param, though the first form is required for options that take optional parameters.
One and only one of the following counting keys is required:
- --sip-first-8
-
Key on the first 8 bits of the source IP address
- --sip-first-16
-
Key on the first 16 bits of the source IP address
- --sip-first-24
-
Key on the first 24 bits of the source IP address
- --sip-last-8
-
Key on the last 8 bits of the source IP address
- --sip-last-16
-
Key on the last 16 bits of the source IP address
- --dip-first-8
-
Key on the first 8 bits of the destination IP address
- --dip-first-16
-
Key on the first 16 bits of the destination IP address
- --dip-first-24
-
Key on the first 24 bits of the destination IP address
- --dip-last-8
-
Key on the last 8 bits of the destination IP address
- --dip-last-16
-
Key on the last 16 bits of the destination IP address
- --sport
-
Key on the source port.
- --dport
-
Key on the destination port.
- --proto
-
Key on the protocol.
- --packets
-
Key on the number of packets in the record
- --bytes
-
Key on the number of bytes in the record
- --duration
-
Key on the duration of the record.
- --icmp-code
-
Key on the ICMP type and code. This switch will assume that all incoming records are ICMP.
The following options affect the output:
- --summation
-
Print as the final row a total of the values in each column.
- --min-bytes=COUNT
-
Disable printing of bins with fewer than COUNT bytes. By default, all bins are printed.
- --max-bytes=COUNT
-
Disable printing of bins with more than COUNT bytes. By default, all bins are printed.
- --min-packets=COUNT
-
Disable printing of bins with fewer than COUNT packets. By default, all bins are printed.
- --max-packets=COUNT
-
Disable printing of bins with more than COUNT packets. By default, all bins are printed.
- --min-records=COUNT
-
Disable printing of bins with fewer than COUNT flow records. By default, all bins are printed.
- --max-records=COUNT
-
Disable printing of bins with more than COUNT flow records. By default, all bins are printed.
- --skip-zeroes
-
Disable printing of bins with no traffic. By default, all bins are printed.
- --no-titles
-
Turn off column titles. By default, titles are printed.
- --no-columns
-
Disable fixed-width columnar output.
- --column-separator=C
-
Use specified character between columns and after the final column. When this switch is not specified, the default of '|' is used.
- --no-final-delimiter
-
Do not print the column separator after the final column. Normally a delimiter is printed.
- --delimited
- --delimited=C
-
Run as if --no-columns --no-final-delimiter --column-sep=C had been specified. That is, disable fixed-width columnar output; if character C is provided, it is used as the delimiter between columns instead of the default '|'.
- --print-filenames
-
Print to the standard error the names of input files as they are opened.
- --copy-input=PATH
-
Copy all binary SiLK Flow records read as input to the specified file or named pipe. PATH may be
stdoutor-to write flows to the standard output as long as the --output-path switch is specified to redirect rwtotal's textual output to a different location. - --output-path=PATH
-
Write the textual output to PATH, where PATH is a filename, a named pipe, the keyword
stderrto write the output to the standard error, or the keywordstdoutor-to write the output to the standard output (and bypass the paging program). If PATH names an existing file, rwtotal exits with an error unless the SILK_CLOBBER environment variable is set, in which case PATH is overwritten. If this switch is not given, the output is either sent to the pager or written to the standard output. - --pager=PAGER_PROG
-
When output is to a terminal, invoke the program PAGER_PROG to view the output one screen full at a time. This switch overrides the SILK_PAGER environment variable, which in turn overrides the PAGER variable. If the --output-path switch is given or if the value of the pager is determined to be the empty string, no paging is performed and all output is written to the terminal.
- --site-config-file=FILENAME
-
Read the SiLK site configuration from the named file FILENAME. When this switch is not provided, rwtotal searches for the site configuration file in the locations specified in the "FILES" section.
- --xargs
- --xargs=FILENAME
-
Read the names of the input files from FILENAME or from the standard input if FILENAME is not provided. The input is expected to have one filename per line. rwtotal opens each named file in turn and reads records from it as if the filenames had been listed on the command line.
- --help
-
Print the available options and exit.
- --version
-
Print the version number and information about how SiLK was configured, then exit the application.
EXAMPLES
In the following examples, the dollar sign ($) represents the shell prompt. The text after the dollar sign represents the command line. Lines have been wrapped for improved readability, and the back slash (\) is used to indicate a wrapped line.
Group by the protocol
Group all incoming data for the first hour of March 1, 2003 by protocol.
$ rwfilter --start-date=2003/03/01:00 --end-date=2003/03/01:00 \
--all-destination=stdout \
| rwtotal --proto --skip-zero
protocol| Records| Bytes| Packets|
1| 15622| 10695328| 147084|
6| 330726| 120536195111| 144254362|
17| 155528| 24500079| 155528|To get the same result with rwuniq(1), use:
$ rwfilter ... --pass=stdout \
| rwuniq --fields=proto --values=records,bytes,packets \
--sort-output
pro| Records| Bytes| Packets|
1| 15622| 10695328| 147084|
6| 330726| 120536195111| 144254362|
17| 155528| 24500079| 155528|Group by the source Class A addresses
$ rwfilter --start-date=2003/03/01:00 --end-date=2003/03/01:00 \
--all-destination=stdout \
| rwtotal --sip-first-8 --skip-zero
sIP_First8| Records| Bytes| Packets|
10| 173164| 59950837766| 72201390|
172| 77764| 17553593| 77764|
192| 250948| 60602999159| 72277820|Use rwnetmask(1) and rwuniq(1) to get a similar result:
$ rwfilter ... --pass=stdout \
| rwnetmask --4sip-prefix=8 \
| rwuniq --fields=sip --values=records,bytes,packets \
--sort-output --ipv6-policy=ignore
sIP| Records| Bytes| Packets|
10.0.0.0| 173164| 59950837766| 72201390|
172.0.0.0| 77764| 17553593| 77764|
192.0.0.0| 250948| 60602999159| 72277820|Group by the final IPv4 octet
$ rwfilter --start-date=2003/03/01:00 --end-date=2003/03/01:00 \
--proto=6 --pass=stdout --daddress=192.168.x.x \
| rwtotal --dip-last-16 --skip-zero | head -5
dIP_Last16| Records| Bytes| Packets|
0. 38| 6| 4862678| 4016|
1. 14| 1| 32844| 452|
18.146| 1| 4226| 12|
21. 4| 6| 5462032| 4521|One way to accomplish this with rwuniq is to create a new field using PySiLK (see pysilk(3)) and the PySiLK plug-in capability (see silkpython(3). The invocation is:
$ rwfilter ... --pass=stdout \
| rwuniq --python=/tmp/dip16.py --fields=dip-last-16 \
--values=flows,bytes,packets --sort-output | head -5
dip-last-16| Records| Bytes| Packets|
0.0.0.38| 6| 4862678| 4016|
0.0.1.14| 1| 32844| 452|
0.0.18.146| 1| 4226| 12|
0.0.21.4| 6| 5462032| 4521|where the definition of the dip-last-16 field is given in the file tmp/dip16.py:
import silk
mask = silk.IPAddr("0.0.255.255")
def mask_dip(r):
return r.dip.mask(mask)
register_ipv4_field("dip-last-16", mask_dip)ENVIRONMENT
- SILK_PAGER
-
When set to a non-empty string, rwtotal automatically invokes this program to display its output a screen at a time. If set to an empty string, rwtotal does not automatically page its output.
- PAGER
-
When set and SILK_PAGER is not set, rwtotal automatically invokes this program to display its output a screen at a time.
- SILK_CLOBBER
-
The SiLK tools normally refuse to overwrite existing files. Setting SILK_CLOBBER to a non-empty value removes this restriction.
- SILK_CONFIG_FILE
-
This environment variable is used as the value for the --site-config-file when that switch is not provided.
- SILK_DATA_ROOTDIR
-
This environment variable specifies the root directory of data repository. As described in the "FILES" section, rwtotal may use this environment variable when searching for the SiLK site configuration file.
- SILK_PATH
-
This environment variable gives the root of the install tree. When searching for configuration files, rwtotal may use this environment variable. See the "FILES" section for details.
FILES
- ${SILK_CONFIG_FILE}
- ${SILK_DATA_ROOTDIR}/silk.conf
- /data/silk.conf
-
Possible locations for the SiLK site configuration file which are checked when the --site-config-file switch is not provided.
SEE ALSO
rwaddrcount(1), rwnetmask(1), rwstats(1), rwuniq(1), pysilk(3), silkpython(3), silk(7)
BUGS
rwtotal replicates some functionality in rwuniq(1) (most notably when rwuniq checks by port or protocol), but the implementations differ: rwtotal uses an array instead of a hash-table, so access is faster, the output is always sorted, and the output includes keys with a value of zero. The use of an array prevents rwtotal from using the complete IP address the way rwuniq does, but it also ensures that rwtotal will not run out of memory.
When used in an IPv6 environment, rwtotal will process every record as long as the IP address is not part of the key. When aggregating by the IP address, rwtotal converts IPv6 flow records that contain addresses in the ::ffff:0:0/96 prefix to IPv4 and processes them. IPv6 records having addresses outside of that prefix are silently ignored. rwtotal will not be modified to support IPv6 addresses; instead, users should use rwuniq(1) (maybe combined with rwnetmask(1)).
rwtotal is also similar to rwaddrcount(1) and rwstats(1).
