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2017-01-25trafgen: l3: Fix checksum for UDP/TCP protosVadim Kochan1-2/+2
While fixing the issue with getting of IPv4 address from device, the setting of default src IPv4/IPv6 addresses was moved from hdr->header_init(...) callback to hdr->packet_finish(...), but packet_finish(...) is called in the following order: udp_hdr->packet_finish() - UDP csum calculation over IPv4/6 pseudo header ip4_hdr->packet_finish() - setting default src IPv4 address from dev ... So src IPv4/6 address will be set after UDP/TCP csum calculation which is wrong, so fixed issue by moving it to the hdr->header_init(...) stage as it was before the c4e07d5142c8. Fixes: c4e07d5142c8 ("trafgen: l3: Support interface without IP address") Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2017-01-25flowtop: Add process UI tab entryVadim Kochan3-48/+315
Add process UI tab entry to show flows statistics per pid. Also changed flow_entry which now has pointer to new struct proc_entry object which contains process related info. On each 1 second refresh proc_entry is checked if it exists by checking /proc/<pid> path, and is deleted if there is no any flows related to it (flows_count is 0), if the process exists then dst & src rates info is zeroed and summed from the all related flows which are in the proc_entry->flows list. The bytes & pkts amount info is collected during all the time process exists. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2017-01-25flowtop: Add tab control to switch between tablesVadim Kochan4-7/+171
Add ui_tab API to create ui tab control to switch between different ui tables which may contain different aggregated info per unique pid/port/proto/dst/src. Meanwhile there is only 1 ui tab entry for flows table. Added some missing cds_list_{next,prev,last}_entry functions into urcu-list-compat.h header. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2017-01-17list: Remove cds_list_* wrappersTobias Klauser4-62/+26
Use the cds_list_* types and macros directly instead of redefining them. This makes it clear that we're not using the Linux kernel implementation of list_head but the one from urcu. Also make sure _LGPL_SOURCE is defined everywhere the urcu functionality is used, such that we get the statically linkable version with reduced overhead. Reference: https://lwn.net/Articles/573424/#qq2answer Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2017-01-17flowtop: Replace single linked list by list_head from list.hVadim Kochan1-101/+47
list.h provides generic Linux-like linked list API which also supports RCU list operations. Also additionally was removed the spinlock which is not needed for RCU-list operations, for the list_del_rcu(...) case it is needed additionally call call_rcu(...) before free the flow entry. Because of full RCU support now flows are freed after grace-period (after presenter leaves RCU lock) via calling call_rcu(), because of that for the new entries we return NFCT_CB_STOLEN to tell conntrack API do not automatically free received nfct_conntrack object, it will be freed by us via call_rcu(...) therefor no need to use nfct_clone(n). Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2017-01-11trafgen: parser: Add terminating ';' to mpls_expr and icmpv6_proto rulesTobias Klauser1-0/+3
The rules mpls_expr and icmpv6_proto are missing a terminating semicolon. Even though bison seems to accept the rules this way, make them consistent with all the others in the file. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2017-01-05flowtop: Minimize delay via halfdelay(1) functionVadim Kochan1-2/+1
Use halfdelay(1) to poll keyboard input with delay in 1 tenth of second and get rid of custom usleep(...) using. With this approach (it is also used in htop tool) the key events are more sensitive to user inputs. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2017-01-05man: trafgen: Add short description about field offset usageVadim Kochan1-0/+44
Add short note about field offset syntax with an example. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2016-12-22gittattributes: Exclude dotfiles from created archivesTobias Klauser2-0/+12
Exclude .git* files and .travis.yml from release packages created using git archive. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2016-12-21trafgen: parser: Allow to set function at field offsetVadim Kochan3-67/+136
Extend proto field expression to: proto_field[{index}:{len}] = {func} which allows to specify function on the field offset via index and value length (default is 1 - 1 byte). This rule is optional. It was needed to keep of proto_field's copies in packet_dyn->fields instead of original fields which allows to scpecify different functions on the different parts of same field, also the copy of original proto_field allows to set custom length/pkt_offset which makes such field behave as virtual sub-field of the original one with different length/pkt_offset but point to the same piece of header. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2016-12-21trafgen: parser: Parse IPv6 address by strict match patternVadim Kochan2-5/+49
Used IPv6 pattern from nftables project [1] to match valid only IPv6 address to do not mess with MAC or other syntax patterns with ':' symbol. [1] http://git.netfilter.org/nftables/tree/src/scanner.l Signed-off-by: Vadim Kochan <vadim4j@gmail.com> [tk: add refrence to nftables source] Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2016-12-21trafgen: proto: Add proto field only setters/gettersVadim Kochan2-0/+56
Add proto_field_xxx functions to set/get value via specified proto_field only. It is good to have such API in case if application needs to set/get value for some custom proto_field instance. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2016-12-21trafgen: proto: Rename proto_field_xxx -> proto_hdr_field_xxxVadim Kochan6-177/+179
Rename all proto_field_xxx(...) functions to proto_hdr_field(...). It is good for 2 reasons: 1) proto_hdr_field_xxx naming is more consistent as it is related to proto_hdr API. 2) It makes possible to introduce proto_field_xxx API which will operate only with struct proto_field. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2016-12-21trafgen: proto: Change __proto_field_set_bytes(...) to take struct proto_fieldVadim Kochan1-17/+33
Change __proto_field_set_bytes(...) function to take struct proto_field instead of doing lookup by hdr & fid. It is needed to able use this function with some custom modified struct proto_field (len, pkt_offset). Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2016-12-21trafgen: parser: Rename field_expr -> field_value_expr ruleVadim Kochan1-15/+15
Rename field_expr rule to field_value_expr to indicate the rule relates to field value part in case if there will be added field_expr rule to describe field expression syntax. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2016-12-19flowtop: Move & refactor walk_processes() to proc.cVadim Kochan3-69/+85
Add proc_find_by_inode() in proc.c which finds pid by inode & gets processe's command line and use it in the flowtop.c instead of walk_processes(). Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2016-12-16str: Avoid trailing space in string returng by argv2str()Tobias Klauser1-2/+4
Don't add a trailing whitespace to the string returned by argv2str(). Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2016-12-16trafgen: proto: Zero out the correct packet slotTobias Klauser1-3/+3
In the third attempt, finally do the packet slot zeroing correctly. Zero the struct packet in __init_new_packet_slot() not the struct packet_dyn in __init_new_counter_slot(). Don't know what hit me yesterday... Fixes: d6d511ecff24 ("trafgen: proto: Zero out newly allocated struct packet") Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2016-12-16bpf: Fix confusing panic() messageTobias Klauser2-2/+2
When using a filter with netsniff-ng without libpcap support, e.g. $ netsniff-ng --in eth0 tcp or udp we get the error: Cannot compile filter tcp or udp which isn't correct and might be confusing for the user as the intention wasn't to specify a filter file but a filter string. Correct the error message accordingly. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2016-12-16bpfc: Remove unnecessary prototype for compile_filter()Tobias Klauser1-3/+0
compile_filter() is defined in bpf_parser.y (and thus the generated parser), no need for a prototype beforehand. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2016-12-15trafgen: proto: Add missing braceTobias Klauser1-1/+1
Fix the fat-fingered previous commit which I pushed out too early ;( Fixes: d6d511ecff24 ("trafgen: proto: Zero out newly allocated struct packet") Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2016-12-15trafgen: proto: Zero out newly allocated struct packetTobias Klauser1-2/+1
When allocating a new struct packet, the headers and headers_count fields are not zeroed and retain whatever value the allocator returned. Incidentally, this usually seems to have been zero. But on some systems (e.g. Ubuntu 16.04 with a self-compiled 4.9) it is not and we hit the following bug_on: trafgen: trafgen_proto.c:135: proto_header_push: Assertion `!(pkt->headers_count >= 16)' failed. Fix this by properly zeroing the entire struct packet. Fixes: e7dd63060e44 ("trafgen: proto: Update field value at runtime") Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2016-12-13zsh: trafgen: Add missing option -q/--qdisc-path to zsh completionTobias Klauser2-1/+2
Also sightly adjust the description in the usage text. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2016-12-10sock: change type of verbose parameter to set_sock_qdisc_bypass()Tobias Klauser2-3/+6
Verbose mode is a boolean option and is already defined as type bool in trafgen, so make the corresponding parameter to set_sock_qdisc_bypass() of type bool too. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2016-12-10bpfc: make verbose parameter booleanTobias Klauser2-6/+6
Verbose mode is a boolean option, so make the variable and parameters carrying it of type bool. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2016-12-09Revert "mausezahn: Add error handling for mismatched address families"Tobias Klauser1-10/+1
This reverts commit bf0df3ec1875df4b167aedd0fff25e7e56408b6b. It turns out, just checking for "." in the IPv4 source will prevent the user from providing an FQDN (which is explicitely allowed and supported). Also, an FQDN would be a valid argument for the IPv6 source, so the check for ":" is also not sufficient. Reference: #166 Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2016-12-08netsniff-ng: proto_ipv4: Move sockaddr_in declarations to narrower scopeTobias Klauser1-8/+9
Move the sockaddr_in definitions and preparations to the scope where they're used, i.e. only if geoip is enabled and working. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2016-12-08all: Remove unused longindex parameter to getopt_long()Tobias Klauser7-15/+15
All tools (except mausezahn) use getopt_long() and pass a pointer to a local opt_index variable for the longindex parameter. However, this variable is never read afterwards. According to getopt(3) it's perfectly fine to pass NULL as the longindex parameter instead, so do that. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2016-12-08mausezahn: Add error handling for mismatched address familiesMandar Gokhale1-1/+10
Currently, mausezahn fails silently if, say the user has specified IPv6 addresses using `-A` and `-B` but has forgotten the -6 option. Add error handling for this and the (probably uncommon) reverse case, i.e. v4 src/dst specified, but used with the -6 option. Signed-off-by: Mandar Gokhale <mandarg@mandarg.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2016-12-05AUTHORS: Add Ken WuTobias Klauser1-0/+1
Add Ken Wu for commit c4e07d5142 ("trafgen: l3: Support interface without IP address"), submitted via PR #165 Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2016-12-05trafgen: l3: Support interface without IP addressKen Wu2-6/+10
Move default source address setting to packet_finish so that we do not need to get the device's address if the source address is set in the packet. Without this, trafgen does not work with an interface without address configured. In addition, in the case failing to get the address for an interface, intead of panic, it now prints a warning and uses a value of 0.0.0.0. Signed-off-by: Ken Wu <abawwu@gmail.com> Reviewed-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2016-12-01build: configure: rewrap missing defs warningTobias Klauser1-3/+3
...and remove a superflous whitespace. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2016-12-01build: configure: clearify missing defs warningTobias Klauser1-3/+3
Missing definitions don't necessarily mean that certain tools won't be built. There might just be reduced functionality (e.g. geoip missing means still all tools will be compiled but they don't perform geoip lookups). Clearify the configure warning accordingly. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2016-11-23mausezahn: Use all-nodes link local address for IPv6Mandar Gokhale1-3/+1
Use all-nodes link local address for IPv6 when destination is not specified. There is a comment that says this should be done anyway. According to RFC 4291, FF01:0:0:0:0:0:0:1 should be the correct address. Signed-off-by: Mandar Gokhale <mandarg@mandarg.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2016-11-23trafgen: parser: Fix undefined ETH_P_802AD on 2.6.x LinuxVadim Kochan1-0/+4
ETH_P_8021AD might be undefined on 2.6.x Linux version (tested on Ubuntu 10 with 2.6.32 Linux), so lets check and define it. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2016-11-18AUTHORS: Add Mandar GokhaleTobias Klauser1-0/+1
Add Mandar Gokhale for: c31566c6fa90 ("man: mausezahn: Add -6 option to manpage") e548da7232d4 ("mausezahn: Typofix & grammar change") submitted via pull requests #161 and #162. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2016-11-18man: mausezahn: Add -6 option to manpageMandar Gokhale1-0/+3
Closes #162 Signed-off-by: Mandar Gokhale <mandarg@mandarg.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2016-11-18mausezahn: Typofix & grammar changeMandar Gokhale1-4/+4
Closes #161 Signed-off-by: Mandar Gokhale <mandarg@mandarg.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2016-11-07netsniff-ng v0.5.2v0.6.2Tobias Klauser1-2/+2
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2016-10-21trafgen: proto: Don't drop const qualifier during castTobias Klauser1-2/+2
Don't drop const qualifier during cast to uint32_t * Found by compiling with -Wcast-qual. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2016-10-21csum: Don't drop const qualifier during castTobias Klauser1-3/+3
Don't drop const qualifier during cast to void * Found by compiling with -Wcast-qual. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2016-10-04AUTHORS: Add Yousong Zhou for his contributionTobias Klauser1-0/+1
Add Yousong Zhou for commits 47493936 ("build: configure: fix checking CC containing -i option") and 70079759 ("all: fix build on CentOS 6 by checking presence of several macros"), submitted via #160. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2016-10-04build: Unify default values for PREFIX and ETCDIR in configureTobias Klauser2-15/+6
The netsniff-ng make system is no longer usable without the `Config' file generated by the ^configure' script. Thus it's now possible to move default value definitions for PREFIX and ETCDIR to the configure script, so we they're not duplicated in `configure' and the Makefile. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2016-10-04build: Simplify checking for PREFIX originTobias Klauser1-7/+3
Use the $(filter ...) make function to simplify the detection of the origin of the PREFIX variable. This allows to merge two duplicate definitions for the INSTX command. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2016-10-04trafgen: man: Highlight packet functions sectionVadim Kochan1-6/+8
Make the each packet functions section name to be bold. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2016-10-04trafgen: man: Add description for 'pfc()' functionVadim Kochan1-0/+27
Add explanation for 'pfc()' function parameters. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2016-10-04trafgen: parser: Add 'pfc()' function for PFC headerVadim Kochan2-2/+42
Add 'pfc()' function for PFC header creation with fields: code - MAC Control opcode prio - Priority enable vector prio(0)..prio(7) - Enable/disable pause for prio X time(0)..time(7) - Set pause time for prio X Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2016-10-04trafgen: l2: Add support for PFC headerVadim Kochan3-0/+64
Add PFC header fields setting (prio vector, time per priority). By default Ethernet header is pushed with required fields. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2016-10-04trafgen: man: Add description for 'pause()' proto functionVadim Kochan1-0/+22
Add explanation for PAUSE(802.3X) header fields. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
2016-10-04trafgen: parser: Add 'pause()' function for IEEE 802.3X PAUSE headerVadim Kochan2-0/+31
Add 'pause()' proto header function for IEEE 802.3X PAUSE header generation with the fields: code - MAC Control opcode (default 0x0001) time - PAUSE time (default 0) Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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