- 18 May, 2016 2 commits
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Stephen Hemminger authored
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David Ahern authored
Kernel gained support for filtering link dumps with commit dc599f76c22b ("net: Add support for filtering link dump by master device and kind"). Add support to ip link command. If a user passes master device or kind to ip link command they are added to the link dump request message. Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
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- 16 May, 2016 4 commits
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Jamal Hadi Salim authored
Brings it closer to more serious actions (adding branching and allowing for late binding) Unfortunately this breaks old syntax of the simple action. But because simple is a pedagogical example unlikely to be used in production environments (i.e its role is to serve as an example on how to write actions), then this is ok. New syntax for simple has new keyword "sdata". Example usage is: sudo tc actions add action simple sdata "foobar" index 1 or tc filter add dev $DEV parent ffff: protocol ip prio 1 u32\ match ip dst 17.0.0.1/32 flowid 1:10 action simple sdata "foobar" Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com>
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Jamal Hadi Salim authored
This is what used to happen before: tc filter add dev tap1 parent ffff: protocol 0xfefe prio 10 \ u32 match u32 0 0 flowid 1:16 \ action ife decode allow mark ok tc -s filter ls dev tap1 parent ffff: filter protocol [65278] pref 10 u32 filter protocol [65278] pref 10 u32 fh 800: ht divisor 1 filter protocol [65278] pref 10 u32 fh 800::800 order 2048 key ht 800 bkt 0 flowid 1:16 match 00000000/00000000 at 0 action order 1: ife decode action pipe index 2 ref 1 bind 1 installed 4 sec used 4 sec type: 0x0 Metadata: allow mark Action statistics: Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0) backlog 0b 0p requeues 0 action order 2: gact action pass random type none pass val 0 index 1 ref 1 bind 1 installed 4 sec used 4 sec Action statistics: Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0) backlog 0b 0p requeues 0 Note the extra action added at the end.. Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com>
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Jamal Hadi Salim authored
This action allows for a sending side to encapsulate arbitrary metadata which is decapsulated by the receiving end. The sender runs in encoding mode and the receiver in decode mode. Both sender and receiver must specify the same ethertype. At some point we hope to have a registered ethertype and we'll then provide a default so the user doesnt have to specify it. For now we enforce the user specify it. Described in netdev01 paper: "Distributing Linux Traffic Control Classifier-Action Subsystem" Authors: Jamal Hadi Salim and Damascene M. Joachimpillai Also refer to IETF draft-ietf-forces-interfelfb-04.txt Lets show example usage where we encode icmp from a sender towards a receiver with an skbmark of 17; both sender and receiver use ethertype of 0xdead to interop. YYYY: Lets start with Receiver-side policy config: xxx: add an ingress qdisc sudo tc qdisc add dev $ETH ingress xxx: any packets with ethertype 0xdead will be subjected to ife decoding xxx: we then restart the classification so we can match on icmp at prio 3 sudo $TC filter add dev $ETH parent ffff: prio 2 protocol 0xdead \ u32 match u32 0 0 flowid 1:1 \ action ife decode reclassify xxx: on restarting the classification from above if it was an icmp xxx: packet, then match it here and continue to the next rule at prio 4 xxx: which will match based on skb mark of 17 sudo tc filter add dev $ETH parent ffff: prio 3 protocol ip \ u32 match ip protocol 1 0xff flowid 1:1 \ action continue xxx: match on skbmark of 0x11 (decimal 17) and accept sudo tc filter add dev $ETH parent ffff: prio 4 protocol ip \ handle 0x11 fw flowid 1:1 \ action ok xxx: Lets show the decoding policy sudo tc -s filter ls dev $ETH parent ffff: protocol 0xdead xxx: filter pref 2 u32 filter pref 2 u32 fh 800: ht divisor 1 filter pref 2 u32 fh 800::800 order 2048 key ht 800 bkt 0 flowid 1:1 (rule hit 0 success 0) match 00000000/00000000 at 0 (success 0 ) action order 1: ife decode action reclassify type 0x0 allow mark allow prio index 11 ref 1 bind 1 installed 45 sec used 45 sec Action statistics: Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0) backlog 0b 0p requeues 0 xxx: Observe that above lists all metadatum it can decode. Typically these submodules will already be compiled into a monolithic kernel or loaded as modules YYYY: Lets show the sender side now .. xxx: Add an egress qdisc on the sender netdev sudo tc qdisc add dev $ETH root handle 1: prio xxx: xxx: Match all icmp packets to 192.168.122.237/24, then xxx: tag the packet with skb mark of decimal 17, then xxx: Encode it with: xxx: ethertype 0xdead xxx: add skb->mark to whitelist of metadatum to send xxx: rewrite target dst MAC address to 02:15:15:15:15:15 xxx: sudo $TC filter add dev $ETH parent 1: protocol ip prio 10 u32 \ match ip dst 192.168.122.237/24 \ match ip protocol 1 0xff \ flowid 1:2 \ action skbedit mark 17 \ action ife encode \ type 0xDEAD \ allow mark \ dst 02:15:15:15:15:15 xxx: Lets show the encoding policy filter pref 10 u32 filter pref 10 u32 fh 800: ht divisor 1 filter pref 10 u32 fh 800::800 order 2048 key ht 800 bkt 0 flowid 1:2 (rule hit 118 success 0) match c0a87a00/ffffff00 at 16 (success 0 ) match 00010000/00ff0000 at 8 (success 0 ) action order 1: skbedit mark 17 index 11 ref 1 bind 1 installed 3 sec used 3 sec Action statistics: Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0) backlog 0b 0p requeues 0 action order 2: ife encode action pipe type 0xDEAD allow mark dst 02:15:15:15:15:15 index 12 ref 1 bind 1 installed 3 sec used 3 sec Action statistics: Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0) backlog 0b 0p requeues 0 xxx: Now test by sending ping from sender to destination Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com>
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Stephen Hemminger authored
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- 13 May, 2016 7 commits
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Stephen Hemminger authored
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subashab@codeaurora.org authored
addr is not used here. Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
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Stephen Hemminger authored
Unused code causes warnings, removed.
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Stephen Hemminger authored
Close to final upstream headers
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Stephen Hemminger authored
This reverts commit b56700bf.
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Stephen Hemminger authored
This reverts commit a60ebcb6.
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Edward Cree authored
Since we can only configure unicast, we probably want to be able to display unicast, rather than multicast. Fixes: 906ac543 ("geneve: add support for IPv6 link partners") Signed-off-by: Edward Cree <ecree@solarflare.com>
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- 06 May, 2016 2 commits
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Jiri Benc authored
Display only attributes that are relevant when a GRE interface is in 'external' mode instead of the default values (which are ignored by the kernel even if passed back). Fixes: 926b39e1 ("gre: add support for collect metadata flag") Signed-off-by: Jiri Benc <jbenc@redhat.com>
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Jiri Benc authored
For GRE interfaces in 'external' mode, the kernel ignores all manual settings like remote IP address or TTL. However, for some of those attributes, kernel checks their value and does not allow them to be zero (even though they're ignored later). Currently, 'ip link' always includes all attributes in the netlink message. This leads to problem with creating interfaces in 'external' mode. For example, this command does not work: ip link add gre1 type gretap external and needs a bogus remote IP address to be specified, as the kernel enforces remote IP address to be either not present, or not null. Ignore the parameters that do not make sense in 'external' mode. Unfortunately, we cannot error out, as there may be existing deployments that workarounded the bug by specifying bogus values. Fixes: 926b39e1 ("gre: add support for collect metadata flag") Signed-off-by: Jiri Benc <jbenc@redhat.com>
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- 03 May, 2016 1 commit
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Quentin Monnet authored
Add function for command completion for tc in bash, and update Makefile to install it under /usr/share/bash-completion/completions/. Inside iproute2 repository, the completion code is in a new `bash-completion` toplevel directory. v2: Remove `if` statement in Makefile: do not try to install in /etc/bash_completion.d/ if /usr/share/bash-completion/completions/ is not found; instead, the user can override the installation path with the specific environment variable. Signed-off-by: Quentin Monnet <quentin.monnet@6wind.com>
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- 19 Apr, 2016 15 commits
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Jiri Pirko authored
Manpage for devlink "sb" object. Signed-off-by: Jiri Pirko <jiri@mellanox.com>
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Jiri Pirko authored
Use kernel shared buffer occupancy control commands to make snapshot and clear occupancy watermarks. Also, allow to show occupancy values in a nice way. Signed-off-by: Jiri Pirko <jiri@mellanox.com>
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Jiri Pirko authored
Implement kernel devlink shared buffer interface. Introduce new object "sb" and allow to browse the shared buffer parameters and also change configuration. Signed-off-by: Jiri Pirko <jiri@mellanox.com>
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Jiri Pirko authored
For filtering purposes, it makes sense for used to either specify devlink handle of port handle. Signed-off-by: Jiri Pirko <jiri@mellanox.com>
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Jiri Pirko authored
This function is to be used from dump callbacks to decide if the output currect output should be filtered off or not. Filtering is based on previously parsed and stored command line options. Signed-off-by: Jiri Pirko <jiri@mellanox.com>
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Jiri Pirko authored
It is handy to have parsed cmdline data stored so they can be used for dumps filtering. So split original dl_argv_parse_put into parse and put parts. Signed-off-by: Jiri Pirko <jiri@mellanox.com>
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Jiri Pirko authored
By default, ifnames will be printed out. User can turn that off using "-n" option on the command line. Signed-off-by: Jiri Pirko <jiri@mellanox.com>
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Jiri Pirko authored
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
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Jiri Pirko authored
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
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Jiri Pirko authored
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
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Jiri Pirko authored
"dl" -> "devlink" Signed-off-by: Jiri Pirko <jiri@mellanox.com>
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Eric Dumazet authored
Kernel sets info->tcpi_min_rtt to ~0U when no RTT sample was ever taken for the session, thus min_rtt is unknown. Signed-off-by: Eric Dumazet <edumazet@google.com>
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Phil Sutter authored
Passing a filter expression and selecting an address family using the '-f' flag would overwrite the state filter by accident. Therefore calling e.g. 'ss -nl -f inet '(sport = :22)' would not only print listening sockets (as requested by '-l' flag) but connected ones, as well. Fix this by reusing the formerly ineffective call to filter_states_set() to restore the state filter as it was before the call to filter_af_set(). Signed-off-by: Phil Sutter <phil@nwl.cc>
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Phil Sutter authored
An expression of the form '(a | b) & b' will evaluate to the value of b for any value of a or b. Signed-off-by: Phil Sutter <phil@nwl.cc>
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Jeff Harris authored
Use the same rtnl_dump_request_n call as the show. The rtnl_wilddump_request assumes the type uses an ifinfomsg which is not the case for the neighbor table. Signed-off-by: Jeff Harris <jefftharris@gmail.com> Acked-by: David Ahern <dsa@cumulusnetworks.com>
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- 11 Apr, 2016 9 commits
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Stephen Hemminger authored
Fix whitespace
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Phil Sutter authored
This adds a new item to VF lines of a PF, stating whether the VF is trusted or not. Signed-off-by: Phil Sutter <phil@nwl.cc>
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Gustavo Zacarias authored
We need limits.h for PATH_MAX, fixes: tc_bpf.c: In function ‘bpf_map_selfcheck_pinned’: tc_bpf.c:222:12: error: ‘PATH_MAX’ undeclared (first use in this function) char file[PATH_MAX], buff[4096]; Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar> Acked-by: Daniel Borkmann <daniel@iogearbox.net>
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Stephen Hemminger authored
Since output of ip commands are already cluttered, move the physical port details under a show_details option.
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Nicolas Dichtel authored
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
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Daniel Borkmann authored
Follow-up to kernel commit 6c9059817432 ("bpf: pre-allocate hash map elements"). Add flags support, so that we can pass in BPF_F_NO_PREALLOC flag for disallowing preallocation. Update examples accordingly and also remove the BPF_* map helper macros from them as they were not very useful. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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Daniel Borkmann authored
Make it easier to spot issues when loading the object file fails. This includes reporting in what pinned object specs differ, better indication when we've reached instruction limits. Don't retry to load a non relo program once we failed with bpf(2), and report out of bounds tail call key. Also, add truncation of huge log outputs by default. Sometimes errors are quite easy to spot by only looking at the tail of the verifier log, but logs can get huge in size e.g. up to few MB (due to verifier checking all possible program paths). Thus, by default limit output to the last 4096 bytes and indicate that it's truncated. For the full log, the verbose option can be used. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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Daniel Borkmann authored
Add new signatures for BPF_FUNC_csum_diff, BPF_FUNC_skb_get_tunnel_opt and BPF_FUNC_skb_set_tunnel_opt. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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Nikolay Aleksandrov authored
Add the optional keyword "vid" to bridge vlan show so the user can request filtering by a specific vlan id. Currently the filtering is implemented only in user-space. The argument name has been chosen to match the add/del one - "vid". This filtering can be used also with the "-compressvlans" option to see in which range is a vlan (if in any). Also this will be used to show only specific per-vlan statistics later when support is added to the kernel for it. Examples: $ bridge vlan show vid 450 port vlan ids eth2 450 $ bridge -c vlan show vid 450 port vlan ids eth2 400-500 $ bridge vlan show vid 1 port vlan ids eth1 1 PVID Egress Untagged eth2 1 PVID br0 1 PVID Egress Untagged Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
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