Commit Graph

4222 Commits

Author SHA1 Message Date
Toke Høiland-Jørgensen 6526e604cf q_cake: Add description of the tc filter override mechanism to man page
Since CAKE now has three different settings that can be overridden by tc
filters (priority and host and flow hashes), documenting how they work is
probably a good idea.

Signed-off-by: Toke Høiland-Jørgensen <toke@toke.dk>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2018-08-24 23:15:03 -07:00
Luca Boccassi 88ecd4873b testsuite: run dmesg with sudo
Some distributions like Debian nowadays restrict the dmesg command to
root-only. Run it with sudo in the testsuite.

Signed-off-by: Luca Boccassi <bluca@debian.org>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2018-08-24 23:14:09 -07:00
Luca Boccassi 012895ce4e testsuite: let make compile build the netlink helper
The generate_nlmsg binary is required but make -C testsuite compile
does not build it. Add the necessary includes and C*FLAGS to the tools
Makefile and have the compile target build it.

Signed-off-by: Luca Boccassi <bluca@debian.org>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2018-08-24 23:14:09 -07:00
Luca Boccassi ad23e152b8 testsuite: remove all temp files and implement make clean
Some generated test files were not removed, including one executable in
the testsuite/tools directory.
Ensure make clean from the top level directory works for the testsuite
subdirs too, and that all the files are removed.

Signed-off-by: Luca Boccassi <bluca@debian.org>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2018-08-24 23:14:09 -07:00
Stefan Bader 1019364964 testsuite: Handle large number of kernel options
Once there are more than a certain number of kernel config options
set (this happened for us with kernel 4.17), the method of passing
those as command line arguments exceeds the maximum number of
arguments the shell supports. This causes the whole testsuite to
fail.
Instead, create a temporary file and modify its contents so that
the config option variables are exported. Then this file can be
sourced in before running the tests.

Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
Acked-by: Luca Boccassi <bluca@debian.org>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2018-08-24 23:13:26 -07:00
Stephen Hemminger a8e9f4ae14 tc: drop extern from function prototypes
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2018-08-20 16:01:31 -07:00
Stephen Hemminger 51070e8f18 genl: drop extern from function prototypes
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2018-08-20 16:01:01 -07:00
Stephen Hemminger cf7fe23859 bridge: drop extern from function prototypes
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2018-08-20 16:00:38 -07:00
Stephen Hemminger 84fb55ede1 ip: drop extern from function prototype
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2018-08-20 15:58:50 -07:00
Phil Sutter 515a766cd2 lib: Make check_enable_color() return boolean
As suggested, turn return code into true/false although it's not checked
anywhere yet.

Fixes: 4d82962ccc ("Merge common code for conditionally colored output")
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2018-08-20 08:55:16 -07:00
Phil Sutter ff1ab8edf8 Make colored output configurable
Allow for -color={never,auto,always} to have colored output disabled,
enabled only if stdout is a terminal or enabled regardless of stdout
state.

Signed-off-by: Phil Sutter <phil@nwl.cc>
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2018-08-20 08:54:06 -07:00
Phil Sutter 644b9c238c ip: Add missing -M flag to help text
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2018-08-17 09:19:54 -07:00
Stephen Hemminger bb616be341 Merge branch 'ipmonitor' 2018-08-16 10:30:10 -07:00
Stephen Hemminger 3e5f8e0ab6 genl: code cleanup
Run through checkpatch and cleanup line wraps etc.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2018-08-16 10:28:13 -07:00
Phil Sutter d559db725c man: ss.8: Describe --events option
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2018-08-16 10:25:02 -07:00
Phil Sutter 6417c06b59 rtmon: List options in help text
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2018-08-16 10:25:02 -07:00
Phil Sutter 71170d854e man: rtacct.8: Fix nstat options
Add missing --pretty and --json options, correct --zero to --zeros and
correct the mess around --scan/--interval including broken man page
formatting.

Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2018-08-16 10:25:02 -07:00
Phil Sutter a486d25b9c man: ifstat.8: Document --json and --pretty options
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2018-08-16 10:25:02 -07:00
Phil Sutter d94974bc91 genl: Fix help text
The '| help' part was misleading: In fact, 'genl help' does not work but
'genl <OBJECT> help' does. Fix the help text to make that clear.

In addition to that, list -Version and -help flags as well.

Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2018-08-16 10:25:02 -07:00
Phil Sutter 29b1430ba9 man: devlink.8: Document -verbose option
This was the only bit missing in comparison to devlink help text.

Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2018-08-16 10:25:01 -07:00
Phil Sutter bb75b9bf2f devlink: trivial: Make help text consistent
Typically the part of the flag in brackets completes the leading part
instead of repeating it.

Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2018-08-16 10:25:01 -07:00
Phil Sutter f9ff0cd69c bridge: trivial: Make help text consistent
Change curly braces into brackets for -json option in help text to be
consistent with the rest.

Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2018-08-16 10:25:01 -07:00
Phil Sutter 05758f5c7b man: bridge.8: Document -oneline option
Copied the description from ip.8.

Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2018-08-16 10:25:01 -07:00
Stephen Hemminger e09d21f675 ipmonitor: decode DELNETCONF message
When device is deleted DELNETCONF is sent, but ipmonitor
was unable to decode it.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2018-08-16 09:50:34 -07:00
Stephen Hemminger 40443f49b3 ip: convert monitor to switch
The decoding of netlink message types is natural for a C
switch statement.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2018-08-16 09:49:00 -07:00
Phil Sutter d67eb4fbf8 testsuite: Add a first ss test validating ssfilter
This tests a few ssfilter expressions by selecting sockets from a TCP
dump file. The dump was created using the following command:

| ss -ntaD testsuite/tests/ss/ss1.dump

It is fed into ss via TCPDIAG_FILE environment variable.

Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2018-08-15 14:25:18 -07:00
Phil Sutter 744bd07662 testsuite: Prepare for ss tests
This merges the shared bits from ts_tc() and ts_ip() into a common
function for being wrapped by the first ones and adds a third ts_ss()
for testing ss commands.

Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2018-08-15 14:25:18 -07:00
Phil Sutter 38d209ecf2 ss: Review ssfilter
The original problem was ssfilter rejecting single expressions if
enclosed in braces, such as:

| sport = 22 or ( dport = 22 )

This is fixed by allowing 'expr' to be an 'exprlist' enclosed in braces.
The no longer required recursion in 'exprlist' being an 'exprlist'
enclosed in braces is dropped.

In addition to that, a few other things are changed:

* Remove pointless 'null' prefix in 'appled' before 'exprlist'.
* For simple equals matches, '=' operator was required for ports but not
  allowed for hosts. Make this consistent by making '=' operator
  optional in both cases.

Reported-by: Samuel Mannehed <samuel@cendio.se>
Fixes: b2038cc0b2 ("ssfilter: Eliminate shift/reduce conflicts")
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2018-08-15 14:25:18 -07:00
Phil Sutter 8a03a2f36f man: ip-route: Clarify referenced versions are Linux ones
Versioning scheme of Linux and iproute2 is similar, therefore the
referenced kernel versions are likely to confuse readers. Clarify this
by prefixing each kernel version by 'Linux' prefix.

Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2018-08-15 14:23:48 -07:00
Stephen Hemminger a84639fcb2 Merge branch 'master' of git://git.kernel.org/pub/scm/network/iproute2/iproute2-next 2018-08-15 14:21:45 -07:00
David Ahern ea9f9b910e Merge branch 'iproute2-master' into iproute2-next
Signed-off-by: David Ahern <dsahern@gmail.com>
2018-08-15 09:56:30 -07:00
Phil Sutter 4d82962ccc Merge common code for conditionally colored output
Instead of calling enable_color() conditionally with identical check in
three places, introduce check_enable_color() which does it in one place.

Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: David Ahern <dsahern@gmail.com>
2018-08-15 09:55:27 -07:00
Phil Sutter 5332148deb bridge: Fix check for colored output
There is no point in calling enable_color() conditionally if it was
already called for each time '-color' flag was parsed. Align the
algorithm with that in ip and tc by actually making use of 'color'
variable.

Fixes: e9625d6aea ("Merge branch 'iproute2-master' into iproute2-next")
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: David Ahern <dsahern@gmail.com>
2018-08-15 09:54:51 -07:00
Phil Sutter 0d0e0e0bef tc: Fix typo in check for colored output
The check used binary instead of boolean AND, which means colored output
was enabled only if the number of specified '-color' flags was odd.

Fixes: 2d165c0811 ("tc: implement color output")
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: David Ahern <dsahern@gmail.com>
2018-08-15 09:54:32 -07:00
Nishanth Devarajan 141b55f854 Add SKB Priority qdisc support in tc(8)
sch_skbprio is a qdisc that prioritizes packets according to their skb->priority
field. Under congestion, it drops already-enqueued lower priority packets to
make space available for higher priority packets. Skbprio was conceived as a
solution for denial-of-service defenses that need to route packets with
different priorities as a means to overcome DoS attacks.

Signed-off-by: Nishanth Devarajan <ndev2021@gmail.com>
Reviewed-by: Michel Machado <michel@digirati.com.br>
Signed-off-by: David Ahern <dsahern@gmail.com>
2018-08-14 07:06:43 -07:00
Stephen Hemminger fa6b90904a Merge branch 'master' of git://git.kernel.org/pub/scm/network/iproute2/iproute2-next 2018-08-13 12:17:53 -07:00
Stephen Hemminger 31ad498a01 v4.18.0 2018-08-13 12:11:32 -07:00
Tobias Klauser b3b7c2a71b tc: bpf: update list of archs with eBPF support in manpage
Update the list of architectures supporting eBPF JIT as of Linux 4.18.
Also mention the Linux version where support for a particular
architecture was introduced. Finally, reformat the list of architectures
as a bullet list in order to make it more readable.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2018-08-13 12:09:11 -07:00
David Ahern c044be6b34 Merge branch 'iproute2-master' into iproute2-next
Signed-off-by: David Ahern <dsahern@gmail.com>
2018-08-13 07:47:21 -07:00
Toke Høiland-Jørgensen 23a67b008a sch_cake: Make gso-splitting configurable
This patch makes sch_cake's gso/gro splitting configurable
from userspace.

To disable breaking apart superpackets in sch_cake:

tc qdisc replace dev whatever root cake no-split-gso

to enable:

tc qdisc replace dev whatever root cake split-gso

Signed-off-by: Toke Høiland-Jørgensen <toke@toke.dk>
Signed-off-by: Dave Taht <dave.taht@gmail.com>
Signed-off-by: David Ahern <dsahern@gmail.com>
2018-08-13 07:41:44 -07:00
Stephen Hemminger d97e266e5d ip: show min and max mtu
Add min/max MTU to the link details

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David Ahern <dsahern@gmail.com>
2018-08-12 14:24:31 -07:00
David Ahern 74eb09ad56 Update kernel headers
Update kernel headers to commit
78cbac647e61 (Merge branch 'ip-faster-in-order-IP-fragments'")

Signed-off-by: David Ahern <dsahern@gmail.com>
2018-08-12 14:23:31 -07:00
Guillaume Nault bbc1cd0d27 l2tp: drop lns_mode
This option is never set.

Signed-off-by: Guillaume Nault <g.nault@alphalink.fr>
Signed-off-by: David Ahern <dsahern@gmail.com>
2018-08-12 14:05:11 -07:00
Guillaume Nault 6022f4dd38 l2tp: drop mtu
This option can't be set by user and is never printed.

Signed-off-by: Guillaume Nault <g.nault@alphalink.fr>
Signed-off-by: David Ahern <dsahern@gmail.com>
2018-08-12 14:05:11 -07:00
Guillaume Nault 99d6ff2101 l2tp: drop data_seq
This option can't be set by user and is never printed. Furthermore,
L2TP_ATTR_DATA_SEQ has always been a noop in Linux.

Signed-off-by: Guillaume Nault <g.nault@alphalink.fr>
Signed-off-by: David Ahern <dsahern@gmail.com>
2018-08-12 14:05:11 -07:00
Keara Leibovitz e8bd395508 tc: fix bugs for tcp_flags and ip_attr hex output
Fix hex output for both the ip_attr and tcp_flags print functions.

Sample usage:

$ $TC qdisc add dev lo ingress
$ $TC filter add dev lo parent ffff: prio 3 proto ip flower ip_tos 0x8/32
$ $TC fitler add dev lo parent ffff: prio 5 proto ip flower ip_proto tcp \
	tcp_flags 0x909/f00

$ $TC filter show dev lo parent ffff:

filter protocol ip pref 3 flower chain 0
filter protocol ip pref 3 flower chain 0 handle 0x1
  eth_type ipv4
  ip_tos 0x8/32
  not_in_hw
filter protocol ip pref 5 flower chain 0
filter protocol ip pref 5 flower chain 0 handle 0x1
  eth_type ipv4
  ip_proto tcp
  tcp_flags 0x909/f00
  not_in_hw

$ $TC -j filter show dev lo parent ffff:

[{
    "protocol":"ip",
    "pref":3,
    "kind":"flower",
    "chain":0
},{
    "protocol":"ip",
    "pref":3,
    "kind":"flower",
    "chain":0,
    "options": {
	"handle":1,
	"keys": {
	    "eth_type":"ipv4",
	    "ip_tos":"0x8/32"
    },
    "not_in_hw":true
    }
},{
    "protocol":"ip",
    "pref":5,
    "kind":"flower",
    "chain":0
},{
    "protocol":"ip",
    "pref":5,
    "kind":"flower",
    "chain":0,
    "options": {
	"handle":1,
	"keys": {
	    "eth_type":"ipv4",
	    "ip_proto":"tcp",
	    "tcp_flags":"0x909/f00"
	},
	"not_in_hw":true
    }
}]

Signed-off-by: Keara Leibovitz <kleib@mojatatu.com>
Signed-off-by: David Ahern <dsahern@gmail.com>
2018-08-12 14:04:00 -07:00
Matteo Croce d56c7dde9d ip link: don't stop batch processing
When 'ip link show dev DEVICE' is processed in a batch mode, ip exits
and stop processing further commands.
This because ipaddr_list_flush_or_save() calls exit() to avoid printing
the link information twice.
Replace the exit with a classic goto out instruction.

Signed-off-by: Matteo Croce <mcroce@redhat.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2018-08-08 09:24:47 -07:00
Stephen Hemminger d66fdfda71 tc: flush after each command in batch mode
After each command flush output.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2018-08-08 09:23:48 -07:00
Lubomir Rintel 3655f788d3 lib/namespace: avoid double-mounting a /sys
This partly reverts 8f0807023d, bringing
back the umount(/sys) attempt.

In a LXC container we're unable to umount the sysfs instance, nor mount
a read-write one. We still are able to create a new read-only instance.

Nevertheless, it still makes sense to attempt the umount() even though
the sysfs is mounted read-only. Otherwise we may end up attempting to
mount a sysfs with the same flags as is already mounted, resulting in
an EBUSY error (meaning "Already mounted").

Perhaps this is not a very likely scenario in real world, but we hit
it in NetworkManager test suite and makes netns_switch() somewhat more
robust. It also fixes the case, when /sys wasn't mounted at all.

Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2018-07-27 13:40:12 -07:00
Stephen Hemminger e5faf729cb ip: show min and max mtu
Add min/max MTU to the link details

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2018-07-27 13:30:19 -07:00