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2016-01-29trafgen: l4: Add UDP header generation logicVadim Kochan1-0/+1
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>
2016-01-29trafgen: l3: Add IPv4 header generation backendVadim Kochan1-0/+1
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>
2016-01-28trafgen: l2: Add Ethernet protocol header generationVadim Kochan1-0/+1
Add trafgen_l2.c module for generating L2 related headers. Add Ethernet header generating. By default source MAC address is used from the specified output device. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2016-01-28trafgen: Add basic protocol generation logicVadim Kochan1-0/+1
Add new trafgen_proto.c module with basic protocol header fields generation logic. This will allow to support protocol specific keywords in the trafgen configuration language. Each protocol must implement struct proto_hdr and register it to the global proto list. Protocol headers consist of a set of fields, and each field must be described via struct proto_field by specifying unique id, length and offset (relative to the header start). Fields smaller than 8 bits can be described via left shift & mask. The following callbacks are invoked to perform special actions to build the header during parsing: 1) header_init - required fields must be added to the packet and initialized with default values. 2) header_finish - it is invoked when header is specified, all user specified fields are set. 3) packet_finish - callback is invoked from upper to lower header to calculate fields depending on upper layers such as total length or checksum. The protocol generation API provides convenience protocol field setters/getters to to be used in the parser while crafting the packet. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> [tk: wordsmithing on commit message, minor variable type changes] Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-11-24trafgen: Invoke C preprocessor from cpp.c moduleVadim Kochan1-0/+1
Use cpp_exec func to invoke C preprocesor. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-07-20sock: Use sysctl helpers to access /proc/sys/ paramsVadim Kochan1-0/+1
Use helpers from sysctl.c module to set sock memory params via /proc/sys/net/core. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2015-04-23build: Restore support for cross-compiling the netsniff-ng toolkitTobias Klauser1-4/+4
Ever since we switched to the hand-crafted ./configure script, support for cross-compiling the netsniff-ng toolkit was basically broken. Restore the abaility to cross-compile our tools by making ./configure consider the CROSS_COMPILE and SYSROOT variables. Example for cross-compiling on arm: $ CROSS_COMPILE=arm-linux-gnueabihf- \ SYSROOT=/usr/arm-linux-gnueabihf \ ./configure $ make assuming the cross-compiled libraries (and their respective pkg-config information) are in /usr/arm-linux-gnueabihf. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-04-21netsniff-ng: Delete rfmon mac80211 device in case of panicVadim Kochan1-0/+1
netsniff-ng does not delete created rfmon device in case of panic (for example - bad pcap filter expression), so added ability to add callback func when panic will be happen and delete rfmon device. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2014-06-16dissector: Get rid of now unnecessary HAVE_DISSECTOR_PROTOSTobias Klauser1-1/+1
Since commit 1cc762a ("lookup: Move UDP/TCP port and Ethernet type lookup into own module") the netsniff-ng tool is the only one using the dissector infrastructure. Thus we no longer need to conditionally device HAVE_DISSECTOR_PROTOS, since netsniff-ng is the only tool defining this. While at it, also remove the __WITH_PROTOS macro which is checked in dissector_init_ethernet/dissector_cleanup_ethernet but is defined nowhere. This will cause the functions to be called from both the ethernet and ieee80211 dissectors, thus make sure we check the initialization state before freeing as well. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2014-04-10build: add DESTDIR supportChristian Wiese1-1/+1
This change implements support for specifying an alternative installation destination directory by setting DESTDIR when calling 'make install'. Example: make DESTDIR=/alternative-rootfs install It is particularly useful when cross-compiling and installing in a dedicated directory where for example the rootfs or a build sandbox for the target architecture is mounted. By using DESTDIR you can avoid to mess with PREFIX to include the alternative installation directory! Signed-off-by: Christian Wiese <chris@opensde.org> Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
2013-07-30build: reduce Extra contents to bare minimumDaniel Borkmann1-0/+8
Improve the build system, so that configuration files are installed per tool basis. Also, introduce post_install targets, so that config files can be altered in some way, e.g. done by trafgen. Moreover, move custom targets from Extra to tool-specific Makefiles. Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
2013-07-11dissector: rename __WITH_PROTOS into HAVE_DISSECTOR_PROTOSDaniel Borkmann1-2/+1
To be more consistent with config.h, rename __WITH_PROTOS into HAVE_DISSECTOR_PROTOS. Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
2013-07-11build: refactor tool specific flags into <tool>/MakefileDaniel Borkmann1-0/+5
To get the normal Makefile a bit cleaner, push the tool specific build options into <tool>/Makefile. Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
2013-06-04xutils: eliminate xutils, move rest to epoll2Daniel Borkmann1-1/+0
Finally eliminate xutils.{c,h} and move the rest to epoll2. Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
2013-06-04timer: add time management functionsDaniel Borkmann1-0/+1
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
2013-06-04sig: add signal handling functionsDaniel Borkmann1-0/+1
Add an extra file for signal handling functions. Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
2013-06-04link: add link management functionsDaniel Borkmann1-0/+1
Same here as usual, break out link functions from xutils. Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
2013-06-04sock: add socket management functionsDaniel Borkmann1-0/+1
Remove them from xutils, and add them to socket management. Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
2013-06-04proc: move out process specific management functionsDaniel Borkmann1-0/+1
Move them out of xutils, so that we can maintain them separately. Also simplify things a bit. Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
2013-06-04privs: move drop_privileges out of xutilsDaniel Borkmann1-0/+1
Again, also to be able to maintain this more easily. Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
2013-06-04xutils: move device management functions out of xutilsDaniel Borkmann1-0/+1
Move those functions out so that they can be more easily maintained in its separate file. Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
2013-06-04xio: rename xio to ioops and reduce its includesDaniel Borkmann1-1/+1
Rename xio to ioops (io-ops) and boil its include files down to a minimum. Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
2013-06-04xutils: break out string handling and lockingDaniel Borkmann1-0/+1
Break out all string handling functions and lockme stuff in order to further eliminate the big code blob in xutils, so that it can be easier maintained. Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
2013-06-03irq: break out from xutils and save + restoreDaniel Borkmann1-0/+1
Break out IRQ functionality from xutils, simplify it, and save + restore IRQ affinity list. Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
2013-05-31ring: move duplicate/generic code parts from rx/tx into ring.cDaniel Borkmann1-0/+1
We do not want to maintain duplicate code, so move this into a separate file and name those *_generic() helpers. Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
2013-03-15netsniff-ng trafgen: Find libnl-3.0 and libnl-genl-3.0 using pkg-configPeter Stuge1-2/+2
Call pkg-config --cflags and pkg-config --libs to find correct CFLAGS and LDFLAGS respectively. Signed-off-by: Peter Stuge <peter@stuge.se> Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
2013-03-15all: import netsniff-ng 0.5.8-rc0 sourceDaniel Borkmann1-0/+16
We decided to get rid of the old Git history and start a new one for several reasons: *) Allow / enforce only high-quality commits (which was not the case for many commits in the history), have a policy that is more close to the one from the Linux kernel. With high quality commits, we mean code that is logically split into commits and commit messages that are signed-off and have a proper subject and message body. We do not allow automatic Github merges anymore, since they are total bullshit. However, we will either cherry-pick your patches or pull them manually. *) The old archive was about ~27MB for no particular good reason. This basically derived from the bad decision that also some PDF files where stored there. From this moment onwards, no binary objects are allowed to be stored in this repository anymore. The old archive is not wiped away from the Internet. You will still be able to find it, e.g. on git.cryptoism.org etc. Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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