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2013-06-04ioops: Add {read,write}_blob_or_die for reading/writing binary blobsDaniel Borkmann2-0/+25
We need those functions for later key generation simplification. Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
2013-06-04rnd: add gen_key_bytes to generate key from good entropy sourceDaniel Borkmann3-19/+33
Make this a function and do not have this in curvetun hard coded. Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
2013-06-04crypto: add crypto header with includes and definesDaniel Borkmann6-34/+26
Add another header with includes and defines, so that we can reduce double-definitions, and shorten long text strings. Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
2013-06-04misc: cleanup header commentsDaniel Borkmann19-115/+12
Remove header comments where appropriate. And also clean up colorize a bit. Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
2013-06-04tstamping: add header file for packet timestampingDaniel Borkmann3-11/+9
Better add a header file for this, so that we do not need to have it in multiple places declared. Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
2013-06-04rnd: move entropy source definition to rndDaniel Borkmann3-10/+11
It's better off there anyway. Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
2013-06-04stun: add header fileDaniel Borkmann3-10/+8
Add a header file for stun functions. Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
2013-06-04xutils: eliminate xutils, move rest to epoll2Daniel Borkmann46-154/+53
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 Borkmann8-12/+26
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
2013-06-04sig: add signal handling functionsDaniel Borkmann16-30/+52
Add an extra file for signal handling functions. Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
2013-06-04link: add link management functionsDaniel Borkmann12-166/+192
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 Borkmann19-186/+209
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 Borkmann8-79/+80
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 Borkmann8-15/+31
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 Borkmann16-168/+198
Move those functions out so that they can be more easily maintained in its separate file. Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
2013-06-04xutils: break out promisc mode functionsDaniel Borkmann8-23/+36
Put them separately for the sake of maintanence. Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
2013-06-04irq: rename device_bind_irq_to_cpu to device_set_irq_affinityDaniel Borkmann3-4/+4
This is more appropriate and consistent with other device irq functions. Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
2013-06-04xio: rename xio to ioops and reduce its includesDaniel Borkmann24-40/+27
Rename xio to ioops (io-ops) and boil its include files down to a minimum. Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
2013-06-04xio: add ioexact operationsDaniel Borkmann14-74/+70
Break this out so that we only need to have sigint non-static where it is really needed. Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
2013-06-04xio: refactor fopencookie related functionsDaniel Borkmann6-46/+59
Again, we move them out of xio to shrink it down. Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
2013-06-04rnd: break out prng from xutilsDaniel Borkmann7-46/+58
We only need it in curvetun, this makes it easier to maintain. Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
2013-06-04corking: use bool instead of intDaniel Borkmann2-6/+8
We have a boolen condition, so use bool instead of doing stupid things with ints. Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
2013-06-04trie: remove useless header commentDaniel Borkmann1-6/+0
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
2013-06-04cpusched: remove useless header commentDaniel Borkmann1-6/+0
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
2013-06-04corking: break out udp/tcp cork functionsDaniel Borkmann7-58/+80
No, it's not about whine bottles ... move udp and tcp cork functions out of xutils.c, so that we can further let it shrink. Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
2013-06-04xutils: remove unused declarationDaniel Borkmann1-1/+0
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
2013-06-04cpus: break out cpu related functions from xutilsDaniel Borkmann6-12/+19
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
2013-06-04xutils: break out string handling and lockingDaniel Borkmann32-95/+149
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>
2013-06-03iosched: break out io scheduling functions from xutilsDaniel Borkmann8-62/+88
Break this stuff out, for better maintainability and readability. Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
2013-06-03netsniff-ng: v3: fix packet accounting on --numDaniel Borkmann5-30/+34
We need to carry frame_count through multiple calls of walk function to account correctly for --num <pkts>. Also, move socket stats printing into rx ring, since it belongs there. Todo: the kernel socket seems to have a different count that what we see. This needs to be fixed one way or the other. Not yet sure what's causing this. Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
2013-06-03irq: break out from xutils and save + restoreDaniel Borkmann8-112/+145
Break out IRQ functionality from xutils, simplify it, and save + restore IRQ affinity list. Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
2013-06-03zsh: update zsh autocompletion functions to implementationHideo Hattori4-8/+13
Update those functions to implementation status. Signed-off-by: Hideo Hattori <hhatto.jp@gmail.com> Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
2013-06-02ifpps: Rename variable containing top number of CPUsTobias Klauser1-8/+8
To make it more clear whether we're using the total number of CPUs or the top number (default 10 or specified by user), rename the variable, where the top number is used. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2013-05-31netsniff-ng: minor: update help descriptionDaniel Borkmann1-3/+3
Give -J a lower prio in the help option ranking and state that its only for replay or forwarding. Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
2013-05-31man: netsniff-ng: update man page to document when -J is neededDaniel Borkmann1-13/+16
--jumbo-support is now not always needed anymore. So document when one needs it and when not. Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
2013-05-31netsniff-ng: enable jumbo frames on default in tpacket_v3Daniel Borkmann1-4/+4
Since frames are stored more compressed and contiguous, we can also enable jumbo support in pcap dumps by default, since we have no further restrictions in terms of ring buffer frame size. Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
2013-05-31ring_rx: if v3, free it in kernel space during closeDaniel Borkmann1-2/+7
Let this be freed by the kernel during close(2) call in case of v3 otherwise we would get a -EINVAL. Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
2013-05-31ring: netsniff-ng: migrate capture only to TPACKET_V3Daniel Borkmann7-128/+176
Lets migrate capturing to TPACKET_V3, since it will bring a better performance due to fewer page cache misses caused by a higher density of packets, since now they are contigous placed in the ring buffer. It is said that TPACKET_V3 brings the following benefits: *) ~15 - 20% reduction in CPU-usage *) ~20% increase in packet capture rate *) ~2x increase in packet density *) Port aggregation analysis *) Non static frame size to capture entire packet payload Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
2013-05-31ring: setup frame structure for v2/v3 in a generic wayDaniel Borkmann8-18/+30
Prepare TPACKET_V3 for allowing to transparently setting up the frame structure such that we do not need to change much in the netsniff-ng/trafgen code. Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
2013-05-31ring: move duplicate/generic code parts from rx/tx into ring.cDaniel Borkmann7-72/+85
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>
2013-05-31ring: fix wrong error message text in __get_sockopt_tpacketDaniel Borkmann1-1/+1
Arg, this was a leftover when copying the other function. So fix it! Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
2013-05-31ring: implement setup of tpacket v3 ringDaniel Borkmann3-3/+30
Implement ring setup routines and structures for TPACKET_V3. Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
2013-05-31man: ifpps: Mention CPU limit in first section and remove BUGS sectionTobias Klauser1-7/+2
Mention the -n command line option in the general description, not just the hard limit. Also remove the BUGS section, since this is now basically resolved. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2013-05-30ring: setup_{rx,tx}_ring_layout: use bool for jumbo_supportDaniel Borkmann4-4/+4
There's no good reason why we currently waste an 'int' for jumbo_support while this must better be done as 'bool'. Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
2013-05-30ring: prepare setup_rx_ring_layout for support in v2/v3Daniel Borkmann6-11/+28
Prepare setup_rx_ring_layout for both, v2 and v3. Also do some checks during compile time if offsets stay the same as we operate on different union mappings. Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
2013-05-30ring: add necessary structures and helper functions for v3Daniel Borkmann2-1/+15
Prepare and add some structures an helper functions for TPACKET_V3. Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
2013-05-30ring: move poll related fallback define to built_in.hDaniel Borkmann2-10/+12
It rather belongs to built_in.h, and not here. Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
2013-05-30ring: minor: remove define since only used onceDaniel Borkmann1-3/+1
We only use it once and nowhere else, so just replace the correct value right away. Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
2013-05-30ring: add set_sockopt_tpacket_v3 and refactor othersDaniel Borkmann1-4/+12
Add set_sockopt_tpacket_v3() in preparation for TPACKET_V3. Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
2013-05-30Merge branch 'master' of github.com:borkmann/netsniff-ngDaniel Borkmann3-18/+30
Needed to let Git merge to not run into conflicts with Tobias' set of changes on ifpps resp. ifpps manpage. Signed-off-by: Daniel Borkmann <dborkman@redhat.com>