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2015-08-03flowtop: Get rid of flushing flows by dumping ipv4/ipv6 tablesVadim Kochan1-30/+122
Get rid of flushing connections which resets all counters. Use dump whole ipv4/ipv6 connection tables to fullfill the existing flows, but this needs to use hand-made flow filtering because nfct_filter does not work when we do NFCT_Q_DUMP. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-08-03flowtop: Rename collector_cb -> flow_event_cbVadim Kochan1-3/+3
Rename collector_cb to reflect behaviour such as catching flow events. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-08-03flowtop: Rename ct_dump -> ct_update, dump_cb -> flow_update_cbVadim Kochan1-8/+8
Rename ct_dump variable & update_cb function so they reflect 'updating' of a particular flow at runtime. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-08-03flowtop: Move filter creating to separate functionVadim Kochan1-16/+18
Move creating nfct filter to separate function to make collector() less messy. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-07-27flowtop: Fix missing new connections after flushVadim Kochan1-2/+2
There might be new fast connection between flush & handling new events which can be not handled, so put flushing connections before loop. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-07-27flowtop: Make struct flow_entry member size checks build_bug_on()Tobias Klauser1-3/+3
The city_{src,dst}, country_{src,dst} and rev_dns_{src,dst} members of struct flow_entry have their size defined at compile time, so perform the equal size checks at compile time as well. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-07-26flowtop: Fix collector stuck while flush IPv6 flowsVadim Kochan1-5/+17
Seems it was caused by specifying all netfilter groups when flushing connections. Used separated nfct instance w/o netfilter groups to flush ipv4/ipv6 connections. More info can be fetched from the issue item on github: https://github.com/netsniff-ng/netsniff-ng/issues/145 Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2015-07-26flowtop: Fix bytes counter print for gigabyteVadim Kochan1-1/+1
'G' should be printed when bytes > 1000000000 but it was printed with 'M' prefix which was caused by missing 'else'. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2015-07-26flowtop: Use prev & next vars in flow_list_find_prev_id(...)Vadim Kochan1-6/+6
Replace n & tmp variables to more understandable prev & next. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2015-07-26flowtop: Change tcp param to 'bool is_tcp' in presenter_get_port(..)Vadim Kochan1-5/+5
Rename tcp -> is_tcp param and change it to bool. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2015-07-26flowtop: Use bool as parameter in get_port_inode(..)Vadim Kochan1-1/+1
Convert int -> bool as parameter. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2015-07-26flowtop: Convert bool in flow_entry_get_extended_is_dns(...)Vadim Kochan1-1/+1
Use bool as return type in flow_entry_get_extended_is_dns(...) func. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2015-07-23flowtop: Make presenter_flow_wrong_state() return boolTobias Klauser1-8/+6
Only 0/1 are used as return values, change to type bool. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-07-22flowtop: Replace bool lookup tables by switch statementTobias Klauser1-40/+37
Use a switch statement instead of looking up a valid state in the *_states_show bool arrays in presenter_flow_wrong_state(). This makes the code a bit easier to read. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-07-21flowtop: Simplify assignment of flow_entry->is_visibleTobias Klauser1-9/+7
Just assign a default value of false and override it with true if the checks go through. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-07-20sysctl: Add sysctl module with /proc/sys helpersVadim Kochan1-54/+1
Moved sysctl get/set funcs from flowtop to separated sysctl module. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2015-07-20Revert "flowtop: Don't init screen until collector is ready"Vadim Kochan1-9/+0
Follow-up of commit 9a89c1d813fb ("Revert "flowtop: Fix hanging while waiting for collector"") which both address the clean up in the panic handler. This reverts commit 451275470106024f106a310a5af050b3ca046a4f. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2015-07-17flowtop: Indentation fixes for multiline function signaturesTobias Klauser1-3/+3
Align the arguments/parameters on successive lines with the opening parenthesis. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-07-17flowtop, netsniff-ng: Move process name extraction to own functionTobias Klauser1-8/+4
flowtop and the netsniff-ng's netlink message dissector both need to get the process name for a pid from /proc/<pid>/exe, thus move that functionality to an own function. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-07-17flowtop: Use strncpy instead of strcatTobias Klauser1-4/+2
Make the path creation a bit more straight-forward. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-07-17flowtop: Show flow bytes in human readable formatVadim Kochan1-3/+21
Print flow bytes amount in human readable format units (G,M,K). Signed-off-by: Vadim Kochan <vadim4j@gmail.com> [tklauser: Make bandw2str static, change arg type, formatting] Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-07-17flowtop: Show total numbers of flowsVadim Kochan1-14/+19
Count flows which might be showed and show this number on the top status line. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-07-17flowtop: Add connection traffic accountingVadim Kochan1-26/+202
Mark each flow if it is visible on the screen to know if it is needed update traffic acct info. Changed to use non blocking recv of nf conntrack events to update traffic accounting. Now nf_conntrack is cloned when new flow entry is added to send dump request which is used to update traffic accounting info (packet, bytes). Signed-off-by: Vadim Kochan <vadim4j@gmail.com> [tklauser: Formatting changes] Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-07-17flowtop: Refactor walking for each flow node by presenterVadim Kochan1-79/+52
Change code to walk each flow by presenter to look more understandable. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> [tklauser: Revert unnecessary whitespace changes] Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-07-13flowtop: Fix flows disappearingVadim Kochan1-1/+3
While removing flow which is pointed by 'head' then head is set to NULL and all the list disappears, so fixed by set removing flow next entry to list 'head'. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2015-03-23flowtop: Print error cause if errno is set when panicVadim Kochan1-5/+5
Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2015-03-20flowtop: Don't init screen until collector is readyVadim Kochan1-0/+9
In case if main thread already initialized screen but then collector called panic, the process exits but console stays with the same colored screen and shifted shell prompt. Fixed by adding conditional variable locking. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2014-12-12all: Reduce amount of empty liens in usage and version output a bitTobias Klauser1-5/+5
No need for some of the empty lines, remove them to make the output a bit denser. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2014-09-08flowtop: Use integer conversion to determine PID proc entriesTobias Klauser1-13/+20
Try to convert the directory entry name to an unsigned integer with strtoul() instead of using strspn() to determine if a proc entry is a PID. If it is a valid PID (i.e. strtoul returned a value != 0), we can directly use it to pass into walk_process() and there set flow_entry->proc_num. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2014-09-08flowtop: Simplify entry skip logicTobias Klauser1-10/+5
Instead of testing three skip conditions for every entry, make use of the short-circuit evaluation of the boolean OR operator to only test as few conditions as necessary. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2014-09-05flowtop: Don't duplicate copyright/bug report/license stringTobias Klauser1-16/+12
Move the copyright/bug report/license string to an own constant and use it for the output of help() and version() to avoid duplication and prevent the strings from getting out of sync. This makes the text section of flowtop.o slightly smaller: before: text data bss dec hex filename 15601 4 48 15653 3d25 flowtop/flowtop.o after: text data bss dec hex filename 15228 4 48 15280 3bb0 flowtop/flowtop.o Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2014-07-23build: flowtop: Only build ioops with GeoIP support enabledTobias Klauser1-1/+0
Follow commit 9ad7f8882097 ("build: astraceroute: Only build ioops with GeoIP support enabled"). The ioops module is only needed in geoip.o, thus make it dependent on CONFIG_GEOIP. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2014-06-13lookup: Move UDP/TCP port and Ethernet type lookup into own moduleTobias Klauser1-3/+5
Up to now, the lookup of TCP/UDP port names and Ethernet types was tightly integrated with the dissector infrastructure, since it is its main user. However, flowtop also makes use of the name lookup functionality without needing the actual dissector infrastructure. Thus, the basic dissector infrastructure also needs to be linked into flowtop without actually being used. Fix this by extracting the port/ethertype lookup into an own module which can then be used either directly (for flowtop) or as part of the dissector infrastructure (for netsniff-ng). This also reverts the quick & dirty fix introduced in commit f3322c6 ("flowtop: Include netlink dissector to fix build temporarily"). Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2014-05-27geoip: Pass struct sockaddr_in{,6} as pointer instead of by valueTobias Klauser1-4/+4
Change the interface to the geoip_* functions to take a pointer to a struct sockaddr_in{,6} instead of the struct itself. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2014-05-27flowtop: Constify function parameter in walk_process()Tobias Klauser1-1/+1
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2014-05-03all: Use macros for printf/scanf format specifiersJames McCoy1-4/+5
Any types that are fixed width should use the standard format specifier macros (PRI... for printf-type functions, SCN... for scanf-type functions) to ensure proper data access. Prior to this ifpps was crashing in 32-bit environments due to the following call mvwprintw(screen, (*voff)++, 2, "%s,%s %s (%s%s), t=%lums, cpus=%u%s/%u" " ", uts.release, machine, ifname, drvinf.driver, buff, ms_interval, top_cpus, top_cpus > 0 && top_cpus < cpus ? "+1" : "", cpus); since ms_interval is a uint64_t but %lu expects an unsigned long, which is only 32 bits. Signed-off-by: James McCoy <vega.james@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2014-02-22flowtop: Exit gracefully for all possible termination signalsTobias Klauser1-0/+4
Handle all termination signals that we're allowed to handle (SIGKILL can't be handled) in order to exit gracefully in any regular termination case. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2013-07-29flowtop: Fix compiler warningsTobias Klauser1-2/+3
Fix the following compiler warnings that occur when building with "-W -Wall -Wextra": flowtop.c: In function ‘walk_process’: flowtop.c:417:45: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] flowtop.c: In function ‘presenter_screen_update’: flowtop.c:937:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] flowtop.c:938:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2013-07-14flowtop: Mark unused parameters with __maybe_unusedTobias Klauser1-2/+2
In order to avoid compiler warnings when compiling with -W/-Wunused-parameter, mark unused function parameters with __maybe_unused. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2013-07-13misc: fix multiple NULL pointer sparse warningsDaniel Borkmann1-1/+1
Those are fixes for the following warnings: pcap_mm.c:119:29: warning: Using plain integer as NULL pointer pcap_mm.c:141:29: warning: Using plain integer as NULL pointer ring.c:24:31: warning: Using plain integer as NULL pointer flowtop.c:1114:22: warning: Using plain integer as NULL pointer ifpps.c:1133:29: warning: Using plain integer as NULL pointer Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
2013-07-09all: show git id in --version informationDaniel Borkmann1-4/+5
In order to be able to better track regressions or to give support, let us track the Git id as well in version information. This makes the ``--version'' switch actually useful. Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
2013-07-08conntrack: consolidate all conntrack header includes into conntrack.hDaniel Borkmann1-4/+1
Consolidate all conntrack header includes into conntrack.h as this is more clean. Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
2013-06-24ifpps, flowtop: Move ncurses init and end to common moduleTobias Klauser1-21/+3
ncurses (de-)initialization is duplicated across flowtop and ifpps, so move it to an own module and use it from both tools. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2013-06-13flowtop: Remove unnecessary bug_on() and rework presenter_screen_init()Tobias Klauser1-8/+9
The screen pointer can never be NULL, since initscr() exits the process in case of an error. Thus the bug_on() check can be omitted. Also rework presenter_screen_init() - where initscr() is called - to return the pointer. This will also silence a Coverity scanner error (even though it isn't actually one). Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2013-06-12flowtop: set bug if screen is NULLDaniel Borkmann1-0/+2
If this is ever the case, bail out. 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>
2013-06-04sig: add signal handling functionsDaniel Borkmann1-0/+1
Add an extra file for signal handling functions. Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
2013-06-04xio: 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>
2013-06-04xio: add ioexact operationsDaniel Borkmann1-3/+1
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>
2013-06-04xutils: 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>
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