SKB editing action in tc(8) Linux SKB editing action in tc(8)
NAME
skbedit - SKB editing action
SYNOPSIS
tc ... action skbedit [ queue_mapping QUEUE_MAPPING ] [ priority PRIOR-
ITY ] [ mark MARK[/MASK] ] [ ptype PTYPE ] [ inheritdsfield ]
DESCRIPTION
The skbedit action allows one to change a packet's associated meta data.
It complements the pedit action, which in turn allows one to change
parts of the packet data itself.
The most unique feature of skbedit is its ability to decide over which
queue of an interface with multiple transmit queues the packet is to be
sent out. The number of available transmit queues is reflected by sysfs
entries within /sys/class/net/<interface>/queues with name tx-N (where N
is the actual queue number).
OPTIONS
queue_mapping QUEUE_MAPPING
Override the packet's transmit queue. Useful when applied to
packets transmitted over MQ-capable network interfaces.
QUEUE_MAPPING is an unsigned 16bit value in decimal format.
priority PRIORITY
Override the packet classification decision. PRIORITY is either
root, none or a hexadecimal major class ID optionally followed by
a colon (:) and a hexadecimal minor class ID.
mark MARK[/MASK]
Change the packet's firewall mark value. MARK is an unsigned
32bit value in automatically detected format (i.e., prefix with
'0x' for hexadecimal interpretation, etc.). MASK defines the
32-bit mask selecting bits of mark value. Default is 0xffffffff.
ptype PTYPE
Override the packet's type. Useful for setting packet type to
host when needing to allow ingressing packets with the wrong MAC
address but correct IP address. PTYPE is one of: host, other-
host, broadcast, multicast
inheritdsfield
Override the packet classification decision, and any value speci-
fied with priority, using the information stored in the Differen-
tiated Services Field of the IPv6/IPv4 header (RFC2474).
SEE ALSO
tc(8), tc-pedit(8)
iproute2 12 Jan 2015 SKB editing action in tc(8)
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