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Used new UI table API for flows printing to make it more
generic. Also it will allow to have same code to dump
flows in text mode.
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Add new module ui.c which is responsible to render
different kinds of UI widgets - tables, etc.
Implemented generic API for print table-like list of elements.
This table API might be used for print flows in curses or text mode.
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
[tk: change bug_on(true) to bug(), whitespace fix]
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Add definitions for list structure & functions without cds_/CDS_ prefix.
The purpose of this change is to use such linked-list in sorting or
ordering some kind of items (e.g. flowtop - flows, columns).
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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In order to catch problems with missing libGeoIP/zlib stubs already in
Travis CI, use the DISABLE_{GEOIP,ZLIB} variables to the configure
script in all possible combinations during the CI build.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Allow users to explicitely disable linking against libgeoip and zlib, as
they are completely optional, e.g:
DISABLE_GEOIP=1 ./configure && make
DISABLE_ZLIB=1 ./configure && make
This change should also help to increase build coverage once we use
these options in the Travis CI setup.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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When looking at config.h it should be obvious which features were
enabled and disabled, so put a comment there in cased they are disabled.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Commit f61f39d ("geoip: Allow to get country 3-code") added
new helpers without considering HAVE_GEOIP definition.
Fixed by adding dummy functions for get 3-code country name
in case if HAVE_GEOIP is not defined.
Tested only by manualy disabling HAVE_GEOIP in config.h
and geoip.c compilation in Config file.
Fixes: f61f39d (geoip: Allow to get country 3-code)
Reported-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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proto_lower_header() is the only caller for proto_current_header() which
already checks header_count > 0, so inline proto_current_header() and
omit the additional check and a panic() which thus can never be
triggered.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Use new colors definitions via enum variables instead of
numbers which helps to undrerstand better which kind
of color is used.
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Added macros which allow easy specify color pair like:
INIT_COLOR(YELLOW, BLACK);
COLOR(YELLOW, BLACK);
COLOR_ON(YELLOW, BLACK);
by calculating pair id via generic formula. Added shorter
color names via new enum.
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Add 's' key option to toggle source peer info at runtime,
behaviour is the same like for '-s' command line option.
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Changed flows list layout to look more a top-like output
with header and in 1 line. When -s option is specified
then layout changes to 2 lines view including with src peer
info and dst under it on next line.
Also shortified flow state names to allocate less space.
Removed presenter_get_port be cause ports are printed for both peers
separately.
The flow duration time is printed in very short form in one of the
units:
XXd - days
XXh - hours
XXm - minutes
XXs - seconds
the reason is that it is enough to have actually generic understanding
about flow time in the biggest time unit.
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Add func to get country code-3 name by IPv4/6 address
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Add Arch3y for a0f448c and f5ae2cd (PR #156).
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Fix the following warnings when building with glibc>=2.20:
proc.c:1:0: warning: "_GNU_SOURCE" redefined
ioops.c:1:0: warning: "_GNU_SOURCE" redefined
xmalloc.c:8:0: warning: "_GNU_SOURCE" redefined
Signed-off-by: Arch3y <arch3y@archstrike.org>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Fixes depracation issues for glibc>=2.20 if we define _BSD_SOURCE we
must also define _DEFAULT_SOURCE as well
from tprintf.c
warning "_BSD_SOURCE and _SVID_SOURCE are deprecated, use _DEFAULT_SOURCE"
from astraceroute.c
warning "_BSD_SOURCE and _SVID_SOURCE are deprecated, use _DEFAULT_SOURCE"
Signed-off-by: Arch3y <arch3y@archstrike.org>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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This allows a user to pass a range of IPv6 addresses, either like:
fec0:5000::1-fec0:5000::100
or in CIDR notation:
fec0:5000::0/112
These can be used for the -A and/or -B command-line options.
The largest range that can be used is a /64. In other words, if using CIDR
notation, the masklen must be <= 128 and >= 64.
Signed-off-by: Tommy Beadle <tbeadle@gmail.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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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 'mpls()' function for creating MPLS header with parameters:
lbl|label MPLS label
last Indicates the last label on MPLS stack
tc|tclass|exp Traffic Class (TC)
ttl TTL (Time To Live)
Currently only unicast MPLS is supported, but multicast might be set
via 'eth()' function.
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Add support for MPLS header creating with fields:
Label, TClass, Bottom-Stack, TTL
By default S-field is set to 1 (last label), but resets to 0
if lower MPLS header is added.
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Current logic does OR of existing field value & shift-masked
specified value, which is not enough as 0s bits from
the specified value will be not set (be cause of OR),
so fixed it by reseting original field value by AND with
reverted field mask, in otherwords - bits part of original field
value is reset to 0s and only after OR-ed with specified shift-masked
value.
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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The stddef.h header might define the offsetof() macro unconditionally,
leading to the macro being redefined if built_in.h is included _before_
stddef.h. This will lead sparse to complain as follows:
/usr/lib/gcc/x86_64-linux-gnu/4.8//include/stddef.h:413:9: warning: preprocessor token offsetof redefined
./built_in.h:151:10: this was the original definition
Fix this by explicitly including stddef.h in built_in.h
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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After commit 88b359d2aa7e ("trafgen: proto: Simplify getting lower
protocol after init") proto_current_header() is no longer used outside
trafgen_proto.c, so make it static.
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 'vlan()' function to generate VLAN header.
Fields supported:
tpid|proto Set TPID (Tag Protocol Identifier) (default 0x8100)
1ad Set TPID field as 0x88a8
1q Set TPID field as 0x8100
tci Set TCI (Tag Control Information) (default 0)
pcp Set PCP (Priority Code Point) (PCP) (default 0)
dei|cfi Set DEI (Drop Eligible Indicator) (default 0)
id Set VID (VLAN Identifier) (default 0)
Examples:
{ eth(), vlan(id=1), ipv4() }
{ vlan(id=1, 1ad), vlan(id=100, pcp=3), ipv4() }
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Add generation of VLAN header with supported fields:
TPID, DEI/CFI, PCP, VID
Changed struct proto_field.offset uint16_t -> int16_t to make
TPID offset -2 to point to ether type.
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Move setting lower protocol id field value from UDP & TCP
protocols to IPv4 only, so lower layer will know exactly value
to set in protocol id field.
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Move setting next protocol id field from higher protocols (ARP, IPv4)
to Ethernet. It makes code little more generic w/o checking each lower
protocol and setting specific field id.
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Add set_next_proto callback to proto_hdr struct to allow lower
protocol set next protocol id by enum proto_id.
Extended proto_lower_default_add(...) function to take upper protocol
to delegate it's id to lower protocol to set next protocol field.
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Change proto_header_init(...) and proto_lower_default_add(...)
functions to return struct proto_hdr * to do not call
proto_current_header(...) after, so it makes more sense to get struct
proto_hdr * right after initializing protocol by id.
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Get rid of some unnecessary double spaces to make parsers rules look
consistent.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Commit 2ba202b introduced the [e]type field for specifiying the
Ethertype, but at the same time made the existing "prot[o]" field name
not work anymore. Fix it by providing a specific parser rule as it
cannot be solved in the lexer grammar alone (which will always use the
first matching token).
Fixes: 2ba202b ("trafgen: parser: Support "etype"/"type" keywords for Ethertype")
Reported-by: Vadim Kochan <vadim4j@gmail.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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It's not changed inside the function, so mark it as const. Also adjust
the header guards.
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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Rename lexer/parser type and union member ip_addr to ip4_addr. This
will make it easier to distinguish from IPv6 addresses, to be added an a
follow-up patch.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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This fixes the following sparse warning:
trafgen_l2.c:13:20: warning: symbol 'eth_fields' was not declared. Should it be static?
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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Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Remove a duplicate '=' introduced by me when amending commit 0ae726d
("netsniff-ng: Use time of SIGHUP time when rotating files
prematurely").
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Use the timestamp of the SIGHUP in the file name when rotating file
prematurely instead of the file creation date, which might be delayed
depending on when the next packet arrives.
This should make it a bit easier to synchronize pcap files captures by
multiple instances of netsniff-ng on multiple interfaces.
Signed-off-by: Erik Bengtsson <e.bengtsson@gmail.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Include cpp.h for the prototype of cpp_exec() in order to fix the
following sparse warning:
cpp.c:18:5: warning: symbol 'cpp_exec' was not declared. Should it be static?
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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Add function 'udp()' to generate UDP header.
Fields supported:
sp|sport UDP source port (default 0)
dp|dport UDP destination port (default 0)
len|length Length of UDP header + payload (calculated automatically)
csum Checksum field (calculated automatically)
Example (Echo request):
{ udp(dport=7) }
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Add trafgen_l4.c module with generation UDP header fields.
UDP protocol generation logic automaticaly sets the protocol field of
the lower level protocol to IPPROTO_UDP by default (if it is IPv4).
Also checksum & length are calculated and set if it is not given by the
user.
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Add 'ip4(), ipv4()' function to build IPv4 header.
Fields supported:
ihl IPv4 header length (default 5 )
ver|version IPv4 version (default 4)
ttl Time To Live (TTL) field (default 0)
dscp DiffServ field (default 0)
ecn ECN bits (default 0)
tos TOS (DSCP + ECN) field (default 0)
len|length IPv4 header + payload length (calculated by default)
id Identifier (default 0)
flags Flags field (default 0)
frag Fragment offset (default 0)
csum IPv4 header checksum (calculated by default)
df Set DF (Dont Fragment) bit to 1 (default is 0)
mf Set MF (More Fragments) bit to 1 (default is 0)
sa|saddr IPv4 source address (default used from output device)
da|daddr IPv4 destination address (default 0.0.0.0)
proto IPv4 protocol id (default 0)
Example:
{ ip4(df, mf, frag=100, prot=0x1, ecn=2, dscp=20) }
{ ip4(da=1.1.1.1), ip4(sa=3.3.3.3, da=3.3.3.4) }
Last example generates IP-in-IP packet.
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Add L3 module for implement L3 layer protocols generation.
Implemented setting of IPv4 header with all fields except options.
By default IPv4 address of output device is used as src ip address.
On finish (after packet is specified) - total len & checksum are calculated.
Meanwhile Ethernet protocol is initialized as default lower header.
If the lower protocol is IPv4 then IPv4 protocol id is set
to IP-in-IP in lower protocol header.
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Add function 'arp()' to support generating ARP header fields from
the trafgen configuration language.
Supported fields:
htype hardware type, default: 1 (Ethernet)
ptype protocol type, default: 0x0800 (IP)
op|oper operation (req|request, reply, <num>), default: 1 (request)
sha|smac sender MAC address, default: device MAC
spa|sip sender IP address, default: device IP
tha|tmac target MAC address, default: 00:00:00:00:00:00
tpa|tip target IP address, default: 0.0.0.0
Note: setting hlen and tlen is not supported, these will by set to
hlen=6 and plen=4 in any case.
Example usage:
{ arp(op=request, sip=1.1.1.1, smac=11:22:33:44:55:66, tip=42.42.42.42) }
{ arp() }
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
[tk: document keywords in commit message]
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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