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Add explanation about 'drnd' and 'dinc' functions which might be used
for proto field functions.
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Support for generating ICMPv4 headers using the 'icmp4()/icmpv4()'
trafgen generation functions.
Fields supported:
type Set type field (default 0: Echo reply)
Supported keywords: echorequest, echoreply
code Set code field (default 0)
csum Set checksum field (calculated by default)
mtu Set mtu field for destination unreachable (default 0)
seq Set sequence field (default 0)
id Set identifier field (default 0)
addr Set redirect address (default 0.0.0.0)
Example (send ping request):
{ icmpv4(echorequest, seq=1, id=1326) }
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
[tk: squash commits, consistency between functionality and docu]
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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After splitting etype & type to different tokens it is possible
to use 'type' for ICMP type field which is used by RFC.
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Support for generating simple ICMPv6 headers using the 'icmp6()/icmpv6()'
trafgen generation function.
Fields supported:
mtype Message type (default: 0)
Supported keywords: echorequest, echoreply
code Code (default: 0)
csum Message checksum (calculated by default)
Examples:
{ eth(), ipv6(daddr=::1), icmpv6(echorequest), 42, 42, 0, 0 }'
If not explicitely specified, the lower header is initialized as Ethernet.
Suggested-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Support for generating simple IPv6 headers using the 'ip6()/ipv6()'
trafgen generation function.
Fields supported:
ver|version Version (default: 6)
tc|tclass Traffic class (default: 0)
fl|flow Flow Label (default: 0)
len|length Payload length (calculated by default)
nh|nexthdr Type of next header (default: 0)
hl|hoplimit|ttl Hop Limit, TTL (default: 0)
sa|saddr Source IPv6 address (default: device address)
da|daddr Destination IPv6 address (default: 0:0:0:0:0:0:0:0)
Examples:
{ eth(), ipv6(daddr=1:2:3:4:5:6:7:8) }
{ ipv6(tc=2, hl=3, daddr=::1) }
{ eth(), ipv6(nh=58, sa=2001:db8::, da=::1), 128, 0, 0x52, 0x03, 0, 0, 0, 0 }
If not explicitely specified, the lower header is initialized as Ethernet.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Show how the trafgen header generation functions can make a trafgen
script much more concise by rewritting Jesper's example using these
functions.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Add syntax & fields description for 'mpls()' function,
also:
1) add line break for VLAN header notes
2) fix ip -> ipv4 in UDP echo example
3) consistent spelling of EtherType
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Add usage, syntax & parameters description for 'vlan()' function.
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Add a function 'tcp()' to generate TCP headers from the trafgen
configuration language.
Fields supported:
sp|sport TCP source port (default 0)
dp|dport TCP destination port (default 0)
seq Sequence number (default: 0)
aseq|ackseq Acknowledgement number (default 0)
doff|hlen Header length/data offset (default: 5)
cwr Congestion Window Reduced flag (default: 0)
ece|ecn ECN-Echo flag (default: 0)
urg Urgent flag (default: 0)
ack Acknowledgement flag (default: 0)
psh Push flag (default: 0)
rst Reset flag (default: 0)
syn Synchronize flag (default: 0)
fin Finish flag (default: 0)
win|window Receive window size (default: 0)
csum Checksum field (calculated automatically)
urgptr Urgent pointer (default: 0)
Example (SYN on port 80/http):
{ tcp(dport=80, syn, window=5840) }
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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The IEEE 802.3 standard commonly refers to the field specifying the
upper layer protocol as Ethertype, not protocol. Thus, also support the
keywords "etype" and "type" for this field.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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s/packet packet/packet/
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Add description (basic syntax, proto header fields) for newer added
proto headers:
Ethernet, ARP, IPv4, UDP.
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
[tk: reworded and reformatted a few parts]
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Use 'kbit' instead of kBit in usage and manpage to actually reflect what
trafgen expects.
Fixes: 9ece0fe02096 ("trafgen: Add option to specify packets sending rate")
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Added -b,--rate option in units of:
pps/B/kB/MB/kBit/Mbit/Gbit/KiB/MiB/GiB
to specify rate at which packets will be sent.
Similarly to -t,--gap option the packets will be sent
in slow mode with 1 CPU.
Tested with ifpps.
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Add -D,--define option which allows to pass multiple
macro/defines which can be used in trafgen script
(e.g. by #ifdef ).
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Craft packet directly from command line with same syntax as for conf file.
It might be as first step to extend current syntax with specific proto fields.
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Add the csumudp6 and csumtcp6 helper functions in order to simplify
checksum generation for TCP/UDP packets sent over IPv6.
trafgen example for TCP over IPv6:
{
/* MAC Destination */
fill(0xff, 6),
/* MAC Source */
0x00, 0x02, 0xb3, drnd(3),
/* IPv6 Protocol */
c16(0x86DD),
/* Version, Traffic Class, Flow Label */
0b01100000, c8(0), c16(0),
/* Payload Length */
c16(54),
/* Next Header (TCP) */
c8(6),
/* Hop Limit */
c8(64),
/* Source IPv6 */
0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0xba, 0xac, 0x6f, 0xff, 0xfe, 0xa4, 0x12, 0xe3,
/* Destination IPv6 */
0xfe, 0x80, 0x82, 0x2e, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0xde, 0xff, 0xfe, 0x00, 0x06, 0xde,
/* TCP Source Port */
c16(55042),
/* TCP Destination Port */
c16(55043),
/* TCP Sequence Number */
drnd(4),
/* TCP Ackn. Number */
c32(0),
/* TCP Header length + TCP SYN/ECN Flag */
c16((8 << 12) | (1 << 1) | (1 << 6))
/* Window Size */
c16(16),
/* TCP Checksum (offset IPv6, offset TCP) */
csumtcp6(14, 54),
/* TCP Options */
0x00, 0x00, 0x01, 0x01, 0x08, 0x0a, 0x06,
0x91, 0x68, 0x7d, 0x06, 0x91, 0x68, 0x6f,
/* Data blob */
"foobar!",
}
Suggested-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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The default behavior of trafgen is to boost the systems default
socket memory limits during a testrun. This behaviour does not
always result in improved performance, because this will stress
the kernels SLAB allocators unnecessary.
Introducing an option "--no-sock-mem" that instruct trafgen
to not perform any socket memory adjustments.
Fixes: #130
Acked-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
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Fixed typos in mausezahn.8 and trafgen.8
[tklauser: Slightly edited commit message]
Signed-off-by: Kartik Mistry <kartik.mistry@gmail.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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The -k/--kernel-pull option got useless with commit c139e80 ("trafgen:
remove timer-based trigger model"). Instead of entirely removing it and
thus possibly breaking people's scripts, still accept it as an option,
but warn the user about it. We might want to remove the option in a
future release.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Usage: man --warnings -E UTF-8 -l -Tutf8 -Z foo.8 > /dev/null
Signed-off-by: Kartik Mistry <kartik.mistry@gmail.com>
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Since Linux 3.14, the kernel supports a socket option PACKET_QDISC_BYPASS,
which trafgen enables by default. That allow us to bypass the kernels
normal qdisc (traffic control) layer.
An option -q, --qdisc-path is added to allow enabling the qdisc path
explicity, useful for testing purposes.
This will be avail in kernels >= 3.14 via
commit d346a3fae3 (packet: introduce PACKET_QDISC_BYPASS socket option).
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
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Also make these options available to trafgen.
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
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Add ability to set IGP in time units in seconds, milliseconds,
microseconds, and nanoseconds by appending a postfix to --gap e.g. --gap
100ms. Also, update the man page and trafgen.zsh to reflect the
changes.
[Fix whitespaces, coding style and minor wording changes -- tklauser]
Signed-off-by: Jon Schipp <jonschipp@gmail.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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In all the tools' man pages the synopsis line is indented by one space
with respect to the text in the sections above and below. Remove the
space to have consistent alignment.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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For systems with >8 CPUs it might be i) annoying or ii) uninteresting
to print CPU time statistics. So introduce a switch that can skip this
at exit.
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
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Add a colophon to the end of each man page.
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
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Took quite a while to git bisect the cause for the wrong TCP checksum
in the -e example. It turned out that commit bf43e1993c7037 ("trafgen:
lexer: return original string if no shellcode") "broke" it, since
before that commit the TCP checksum from -e example was correct and
afterwards not anymore. Well, it didn't break it. What was happening
here is that with this fix above, the packet got 1 byte longer since
the first character of the example string is not omitted anymore,
therefore the checksum got wrong. Fix this by fixing the IP total
length of the packet in the -e and man page example. The UDP example
from the man page still works well if csumudp() is used, so not
affected of this.
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
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That's the last man page where `` occurs, so fix this up by making it
consistentlt '' as the rest of all man pages.
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
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Some fixes all over, part 1.
Signed-off-by: Kartik Mistry <kartik@debian.org>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
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Minor change in BUGS section to bring it up to date.
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
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Signed-off-by: Jon Schipp <jonschipp@gmail.com>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
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Replace "on default" by "by default", make it a bit more clear what the
seed in the -E/--seed option is for and mention exit after display of
information on --version and --help.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Add complete description of the commandline option -p/--cpp to the
manpage.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Also update examples for the man-page.
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
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Only have Makefile specific folders in the project root where the
binaries are stored, the rest should be part of the repository root.
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
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