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2015-11-27netsniff-ng: nlmsg: Remove unnecessary empty linesTobias Klauser1-7/+0
Remove empty lines in switch/case after break in genl_print_ctrl_attrs to be consistent with coding style in the rest of the file. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-11-27netsniff-ng: nlmsg: Print genl ops & mcast groups attributesVadim Kochan1-14/+92
Dump Generic netlink ops & mcast groups nested attributes. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-11-25bpfc: Check yyin against NULL before calling fclose() on itTobias Klauser1-1/+1
Follow 3f2f363485d3 ("trafgen: Make sure yyin is set before close it") and check the yyin pointer against NULL before attempting to call fclose() with it. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-11-25trafgen: Make sure yyin is set before close itVadim Kochan1-1/+1
In case if cpp failed then it is possible that trafgen may hang on closing uninitialized yyin. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-11-24trafgen: Preprocess packets directly after compilingTobias Klauser1-4/+2
No need to duplicate the call to preprocess_packets(), just call it directly after compile_packets()/compile_packets_str(). Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-11-24trafgen: Fix error message if no packet configuration is givenTobias Klauser1-1/+1
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-11-24cpp: Use /tmp folder for output filesVadim Kochan1-8/+5
There might be a case when input file is located in read-only directory and cpp fails when it tries to create output file there, so use /tmp folder for that as usually it should be writeable for any user. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-11-24trafgen: Invoke C preprocessor from cpp.c moduleVadim Kochan2-12/+3
Use cpp_exec func to invoke C preprocesor. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-11-24bpfc: Invoke C preprocessor from cpp.c moduleVadim Kochan2-12/+7
Use cpp_exec func from cpp.c module to invoke C preprocessor. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-11-24cpp: Add cpp.c module to invoke C preprocessorVadim Kochan2-0/+33
Add cpp_exec func to invoke C preprocessor which allow to change the logic in one place only. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-11-24flowtop: Add runtime commands to filter flows by protoVadim Kochan1-6/+65
Add U/T/I/D/S runtime commands (same like for command line) to filter flows by UDP/TCP/ICMP/DCCP/SCTP proto. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-11-16AUTHORS: Add two new contributorsTobias Klauser1-0/+2
Add Ken-ichirou MATSUZAWA and Martin Hauke to the list of contributors. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-11-16bpfc: Do not panic if bpf file is not validVadim Kochan1-4/+9
If bpf file is not valid then cpp generated file is not deleted because panic() func is invoked. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> [tk: Move exit label to the correct place] Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-11-16netsniff-ng: nlmsg: Check message length before dissect rtnlVadim Kochan1-0/+12
Do not print rtnl message if there is only nlmsg header, which is happen when dump all rtnl table. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-11-16netsniff-ng: nlmsg: Rename attr_fmt to rta_fmtTobias Klauser1-38/+37
Rename attr_fmt to rta_fmt as it uses rtattr struct. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-11-16netsniff-ng: nlmsg: Print generic netlink ctrl family infoVadim Kochan1-13/+158
Add dissection of basic Netlink Generic Controller family info. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-11-16netsniff-ng: nlmsg: Print not dissected attribute type numberVadim Kochan1-1/+12
Print not handled attributes which will be helpful to indicate such attributes and add dissection code. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-11-16flowtop: Add header line with tool name & versionVadim Kochan1-6/+21
Add header bar to be symmetric to the footer. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-11-16lookup: Return const char * from all lookup functionsTobias Klauser7-16/+17
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-11-16lookup: Convert __do_lookup_inline to functionTobias Klauser1-13/+13
Make __do_lookup_inline an inline function and shorten its name to __lookup_inline. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-11-16lookup: Use lookup module for OUI lookup as wellTobias Klauser12-148/+23
Do not needlessly duplicate code between the oui and the lookup module. Instead, add an additional lookup table for OUIs to the lookup module. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-11-15lookup: Keep track of lookup table initialization stateTobias Klauser1-8/+15
Make sure every lookup table is only initialized once. Preparatory patch before moving OUI lookup. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-11-15lookup: Make lookup type and function names more genericTobias Klauser4-41/+43
It's not only ports we look up, make the names a bit more generic. Preparatory patch before moving OUI lookup to the lookup module. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-11-11geoip: Use correct line endings in HTTP requestTobias Klauser1-2/+2
The lines in an HTTP request should all end with \r\n (CRLF) according to RFC 2616, so use these consistently. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-11-11geoip: Don't NULL-terminate download bufferTobias Klauser1-2/+0
The end of the buffer might already contain part of the data payload. Setting the last byte to 0 will thus corrupt the gz file, leading to failed decompression (or previously, to invalid GeoIP database files). The NULL-termination is not necessary in this case, so just omit it. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-11-11geoip: Error out if file is not inflated completelyTobias Klauser1-0/+3
In case the downloaded gzip file got corrupted somehow, the gzread would fail, leaving part of the file uninflated and thus leading to a corrupted GeoIP database. This can in the worst case lead to a crash in libgeoip which in turn causes netsniff-ng/flowtop/astraceroute to crash. So better panic() if we fail to uncompress. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-11-11netsniff-ng: nlmsg: Explicitly cast RTA_LEN to an intTobias Klauser1-4/+4
It looks like the result of RTA_PAYLOAD() can be of different type depending on architecture/kernel header version/... In order to prevent warnings related to non-matching types, just explicitly cast RTA_LEN to an int, since it can't possible be larger than the unsigned short of rta_len anyhow and it is used as an in in the call to device_addr2str(). Fixes: 664dcf4217 ("netsniff-ng: nlmsg: Use correct pritnf format specifier for int") Reported-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-11-10netsniff-ng: tcp: Don't print trailing space after last TCP flag nameTobias Klauser1-16/+18
Check whether there were flags printed before and if this is the case, add a space before printing the next flag. Nicely wrap this all in a macro. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-11-10netsniff-ng: nlmsg: Use correct pritnf format specifier for intTobias Klauser1-1/+1
RTA_LEN is defined as an alias of RTA_PAYLOAD which is defined as: #define RTA_PAYLOAD(rta) ((int)((rta)->rta_len) - RTA_LENGTH(0)) Thus use the correct format specifier %d for int instead of %lu. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-11-10netsniff-ng: Use correct printf format specifier for uint64_tTobias Klauser1-1/+1
ctx->pkts_recvd_last and ctx->pkts_drops_last are uint64_t, so use the PRIu64 format specifier to print them. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-11-10bpfc: man: Add example how to filter rtnetlink by attributesVadim Kochan1-0/+24
Example shows how to filter rtnetlink messages by ifindex & oper state. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-11-10bpfc, trafgen: Do not close stdin when "-" is specifiedVadim Kochan2-2/+5
Do not perform fclose for stdin fd. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-11-10netsniff-ng: Allow to specify compiled BPF from stdinVadim Kochan3-5/+11
Allow read compiled BPF instructions from stdin by via '-f -' option. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-11-09dissectors: igmp: Fix calc_csum() callsTobias Klauser1-5/+5
Fix calls to calc_csum() missed in the previous commit b2eaec6. Fixes: b2eaec6 ("csum: Remove unused parameter from calc_csum()") Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-11-09csum: Remove unused parameter from calc_csum()Tobias Klauser5-6/+5
The `ccsum' parameter to calc_csum() is never used and is set to 0 by all callers. There's no reason to keep it, so remove it. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-11-09trafgen: Allow to build packet from command lineVadim Kochan4-6/+51
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>
2015-11-09str: Add converting cmdline args vector to str moduleVadim Kochan3-16/+26
Move piece of code which converts cmdline args vector to string from netsniff-ng.c to str.c as function. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-11-09flowtop: Simplify toggling of help stateTobias Klauser1-5/+1
No need to use if/else, just toogle it like any other bool. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-11-09flowtop: Add runtime command to show only active flowsVadim Kochan1-9/+20
Add command 'a' to show only active flows with rate > 0 (dst or src). Now 'n->is_visible' means which flow to show by presenter. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-11-09flowtop: Add runtime command to change rate unitsVadim Kochan1-0/+12
Add interactive command 'b' to change rate units to show. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-11-09flowtop: Add runtime command to show help windowVadim Kochan1-25/+90
Show help window by pressing '?' with interactive commands description. Added simple footer bar with help label. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-11-07trafgen, minor: newline in help textDaniel Borkmann1-1/+1
Just add a newline before notes. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2015-11-06build: configure: Silence pkg-config check for libnetfilter_conntrackTobias Klauser1-1/+6
Redirect stderr output of pkg-config to config.log in order to not spam the configure output with pkg-config errors. Instead, use the same pkg-config commands as for the other library checks to get libnetfilter_conntrack cflags. Additionally, use pkg-config to the the linker flags as well. Fixes: 19991f90 ("build: Handle libnetfilter-conntrack with pkg-config") Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-11-06build: configure: Check for libnl-routeVadim Kochan1-0/+36
libnl-route is used in netsniff-ng to dump nlmsg flags. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-11-06netsniff-ng v0.6.0v0.6.0Tobias Klauser1-3/+3
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-11-06build: misc: Mention the release name in the announcementTobias Klauser1-1/+1
Since we have such a nice naming scheme (who can guess it?), mention the release name in the release announcement. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-11-06ring: Move common ring block_r/frame_nr shrinking to generic functionTobias Klauser3-8/+10
Merge shrinking code duplicated for RX/TX rings into an own generic function. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-11-06lookup: Adjust error message on failed openTobias Klauser1-1/+4
Print the strerror() and rephrase the message a bit. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-11-06flowtop: Redraw screen in 1s if no key was pressedVadim Kochan1-2/+16
Seems like screen is updating too frequently which may block some terminals, so lets do it once in 1s but only if no key was pressed. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-11-06lookup: Do not panic if conf file does not existVadim Kochan1-2/+4
It is not necessary to do not allow run application if there is no conf file for port resolving, but instead print message to stderr. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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