The RTM_NEWLINK message accepts ifi_index non-zero value and lets
creation of links with given index (if it's free, or course). This
functionality is available since linux-v3.5.
This patch makes this API available via ip tool.
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
Use warn_unused_result to enforce checking return value of rtnl_send,
and fix where the errors are.
Suggested by initial patch from Petr Písař <ppisar@redhat.com>
The kernel already supports it, so add the support
to iproute2 as well.
Cc: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
This change adds the interface group to the output of "ip link show".
It also makes "ip link" print _all_ devices if no group filter is specified;
previously, only interfaces of the default group (0) were shown.
Signed-off-by: Stefan Tomanek <stefan.tomanek@wertarbyte.de>
ss -i can output "fastopen" attribute if socket used Fast Open
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Recent kernel patches added support for VLAN filtering on the bridge.
This functionality allows one to turn a basic bridge into a VLAN bridge,
where VLANs dicatate packet forwarding and header transformation.
To configure the VLANs on the bridge and its ports a new command is
added to the 'bridge' utility.
# bridge vlan add dev eth0 vid 10 pvid untagged brdev
# bridge vlan add
# bridge vlan delete dev eth0 vid 10
# bridge vlan show
This command supports the following flags:
master - peform the operation on the software bridge device. This is
the default behavior.
self - perform the operation on the hardware associated with the port.
This flag is required when the device is the bridge device and
the configuration is desired on the bridge device itself (not
one of the ports).
pvid - Set the PVID (port vlan id) for a given port. Any untagged
frames arriving on the port will be assigned to this vlan.
untagged - Sets the egress policy of for a given vlan. Default port
egress policy is tagged. Set this flag if you wish traffic
associated with this VLAN to exit the port untagged.
Signed-off-by: Vlad Yasevich <vyasevic@redhat.com>
Commit (5a650703d4 Makefile: make warnings into
errors ) causes the following build error.
gcc -Wall -Wstrict-prototypes -Werror -Wmissing-prototypes
-Wmissing-declarations -Wold-style-definition -O2 -I../include
-DRESOLVE_HOSTNAMES -DLIBDIR=\"/usr/lib\" -DCONFDIR=\"/etc/iproute2\"
-D_GNU_SOURCE -DCONFIG_GACT -DCONFIG_GACT_PROB -DIPT_LIB_DIR=\"/lib/xtables\"
-DYY_NO_INPUT -c -o m_ipt.o m_ipt.c
cc1: warnings being treated as errors
m_ipt.c:72: error: no previous prototype for 'xtables_register_target'
m_ipt.c:361: error: no previous prototype for 'build_st'
make[1]: *** [m_ipt.o] Error 1
This is fixed by adding the prototype in the header include/iptables.h
I am not sure if this is due to something wrong on my build system but I am
using current glibc 2.17.
Signed-off-by: Vijay Subramanian <subramanian.vijay@gmail.com>
This patch implements `bridge monitor mdb`.
Cc: Stephen Hemminger <shemminger@vyatta.com>
Cc: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Cong Wang <amwang@redhat.com>
This patch implements:
bridge mdb { add | del } dev DEV port PORT grp GROUP
Cc: Stephen Hemminger <shemminger@vyatta.com>
Cc: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Cong Wang <amwang@redhat.com>
This patch allows to manage ip6 tunnels via the interface ip link.
The syntax for parameters is the same that 'ip -6 tunnel'.
It also allows to display tunnels parameters with 'ip -details link' or
'ip -details monitor link'.
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Example of the output:
$ ip monitor netconf&
[1] 24901
$ echo 0 > /proc/sys/net/ipv6/conf/all/forwarding
ipv6 dev lo forwarding off
ipv6 dev eth0 forwarding off
ipv6 all forwarding off
$ echo 1 > /proc/sys/net/ipv4/conf/eth0/forwarding
ipv4 dev eth0 forwarding on
$ ip -6 netconf
ipv6 all forwarding on mc_forwarding 0
$ ip netconf show dev eth0
ipv4 dev eth0 forwarding on rp_filter off mc_forwarding 1
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Minor cleanup of original patch, made sure netconf.h matched
result of santized kernel headers
ip tcp_metrics/tcpmetrics
We support get/del for single entry and dump for
show/flush.
v3:
- fix rtt/rttvar shifts as suggested by Eric Dumazet
- show rtt/rttvar usecs as suggested by David Laight
Signed-off-by: Julian Anastasov <ja@ssi.bg>
Both macros are used together, so better to have
single define. Update all requests in ipl2tp.c to use the
new macro.
Signed-off-by: Julian Anastasov <ja@ssi.bg>
Create libgenl.h and libgenl.c. They will contain
common code for GENL users such as ipl2tp, tcp_metrics, etc.
Somewhat simplified by Stephen Hemminger
Signed-off-by: Julian Anastasov <ja@ssi.bg>
Get the same info as from /proc file plus the peer inode.
Applies on top of new sock diag patch and udp diag patch.
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
gcc -DLIBDIR=\"/usr/lib64\" -D_GNU_SOURCE -fmessage-length=0 -O2 -Wall -D_FORTIFY_SOURCE=2 -fstack-protector -funwind-tables -fasynchronous-unwind-tables -g -Wstrict-prototypes -fPIC -DXT_LIB_DIR=\"/usr/lib64/xtables\" -I../include -DRESOLVE_HOSTNAMES -DLIBDIR=\"/usr/lib64\" -fPIC -c -o ipx_pton.o ipx_pton.c
In file included from ../include/utils.h:8:0,
from ipx_ntop.c:5:
../include/libnetlink.h: In function 'rta_getattr_u64':
../include/libnetlink.h:84:2: warning: implicit declaration of function 'memcpy'
../include/libnetlink.h:84:2: warning: incompatible implicit declaration of built-in function 'memcpy'
Both rtnl_talk and rtnl_dump had a callback for handling portions
of netlink message that do not match the correct pid or seq.
But this callback was never used by any part of iproute2 so remove
it.
Support ECNSEEN reporting in ss command.
ESTAB 0 0 10.170.73.123:4900
10.170.73.125:51001 uid:501 ino:385994 sk:f31e5f00
mem:(r0,w0,f0,t0) ts sack ecn ecnseen bic wscale:8,8 rto:210
rtt:18.75/15 ato:40 cwnd:10 send 69.9Mbps rcv_space:32768
"ecn" means TCP session negociated ECN capability (TCP layer) at setup
time
"ecnseen" at least one frame with ECT(0) or ECT(1) or ECN (IP layer) was
received from peer.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
User can specify device group to list by using the group keyword:
ip link show group test
If no group is specified, 0 (default) is implied.
Signed-off-by: Vlad Dogaru <ddvlad@rosedu.org>
The get_jiffies() function retrieves rtt-type values in units of
milliseconds. This patch updates the function name accordingly,
following the pattern given by dst_metric() <=> dst_metric_rtt().
The get_jiffies() function retrieves rtt-type values in units of
milliseconds. This patch updates the function name accordingly,
following the pattern given by dst_metric() <=> dst_metric_rtt().
Add the group keyword to ip link set, which has the following meaning:
If both a group and a device name are pressent, we change the device's
group to the specified one. If only a group is present, then the
operation specified by the rest of the command should apply on an entire
group, not a single device.
So, to set eth0 to the default group, one would use
ip link set dev eth0 group default
Conversely, to set all the devices in the default group down, use
ip link set group default down
Signed-off-by: Vlad Dogaru <ddvlad@rosedu.org>
User can specify device group to list by using the group keyword:
ip link show group test
If no group is specified, 0 (default) is implied.
Signed-off-by: Vlad Dogaru <ddvlad@rosedu.org>
Add the iproute2 support for the ACT_CSUM action. Can be used as
following, certainly in conjunction with the ACT_PEDIT action (pedit):
# In order to DNAT (stateless) IPv4 packet from 192.168.1.100 to
# 0x12345678 (18.52.86.120), and update the IPv4 header checksum and
# the UDP checksum (the last one, only if the packet is UDP).
tc filter add eth0 prio 1 protocol ip parent ffff: \
u32 match ip src 192.168.1.100/32 flowid :1 \
action pedit munge offset 16 u32 set 0x12345678 \
pipe csum ip and udp
# In order to alter destination address of IPv6 TCP packets from fc00::1
# and correct the TCP checksum (nothing happened? except maybe for
# checksums in the TCP payload ...).
tc filter add eth0 prio 1 protocol ipv6 parent ffff: \
u32 match ip6 src fc00::1/128 match ip6 protocol 0x06 0xff flowid :1 \
action pedit munge offset 24 u32 set 0x12345678 \
pipe csum tcp
The default remains at 10 for backwards compatibility.
For instance:
# ip addr flush dev eth2
*** Flush remains incomplete after 10 rounds. ***
# ip -l 20 addr flush dev eth2
*** Flush remains incomplete after 20 rounds. ***
# ip -loops 0 addr flush dev eth2
#
This is useful for getting rid of large numbers of IP
addresses in scripts.
Signed-off-by: Ben Greear <greearb@candelatech.com>
We can use rxhash to classify the traffic into flows. As rxhash maybe
supplied by NIC or RPS, it is cheaper.
Signed-off-by: Changli Gao <xiaosuo@gmail.com>
Acked-by: Jamal Hadi Salim <hadi@cyberus.ca>
Unless promote_secondaries has been active deleting the primary address of
an interface will automatically delete all the secondary addresses.
In the case where ip flush requests the primary then secondary addresses to
be removed - which is the order the addresses are returned by the kernel -
this will cause an error as by the time the request to remove a secondary
address is made it will be missing as it will have been deleted in the
course of deleting the primary address.
This approach to solving this problem orders requests for the
deletion of secondary addresses before primary ones providing
rtnl_dump_filter_l(), a version of rtnl_dump_filter() that
iterates over a list of filters. And by providing two specialised
filters print_addrinfo_secondary() and print_addrinfo_primary().
rtnl_dump_filter_l() first iterates over all addresses using
print_addrinfo_secondary(), which appends secondary addresses to the
request buffer. Then again using print_addrinfo_primary() which appends
primary addresses.
This approach should work regardless of it promote_secondaries is
active or not. And regardless of if any primary of secondary addresses
are present or not.
Signed-off-by: Simon Horman <horms@verge.net.au>
After calling ll_init_map, all of the information stored in the link-layer map
can be retrieved by function calls (ll_index_to_*), except for the link-layer
address. This patch fills the gap by adding a ll_index_to_addr function.
Changes welcome.
Signed-off-by: David Ward <david.ward@ll.mit.edu>
The iptables code supports a "no shared libs" mode where it can be used
without requiring dlfcn related functionality. This adds similar support
to iproute2 so that it can easily be used on systems like nommu Linux (but
obviously with a few limitations -- no dynamic plugins).
Rather than modify every location that uses dlfcn.h, I hooked the dlfcn.h
header with stub functions when shared library support is disabled. Then
symbol lookup is done via a local static lookup table (which is generated
automatically at build time) so that internal symbols can be found.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
It uses 1MB as receive buf limit by default (without
increasing /proc/sys/net/core/rmem_max it will be limited by less
however) and allows to specify the size manually using "-rcvbuf X"
(-r is already used, so you need to specify at least -rc).
Additionally rtnl_listen() continues on ENOBUFS after printing the
error message.
Many thanks to Yevgeny Kosarzhevsky <yevg@pisem.net> for reporting
and a lot of testing
Thanks to Jan Engelhardt <jengelh@medozas.de> for a lot of advice
Thanks to Denys Fedoryschenko <denys@visp.net.lb> for some sample
code that he tried and thanks to Andreas Henriksson <andreas@fatal.se>
(who maintains iproute2 on debian) for the persistent followup.
Signed-off-by: Jamal Hadi Salim <hadi@cyberus.ca>
Stephen Hemminger
Pavel Emelyanov
WANG Cong
Stefan Tomanek
Andrey Vagin
Eric Dumazet
Vlad Yasevich
Vijay Subramanian
Strake
Stephen Hemminger
Cong Wang
Nicolas Dichtel
Julian Anastasov
Rostislav Lisovy
Hagen Paul Pfeifer
Jan Engelhardt
Eric Dumazet
Vlad Dogaru
Gerrit Renker
Stephen Hemminger
Gregoire Baron
Ben Greear
Changli Gao
Simon Horman
David Ward
Mike Frysinger
Patrick McHardy
David Woodhouse
Wolfgang Grandegger
Jamal Hadi Salim