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02a261b5ba
Add support for the new TCA_MPLS_ACT_MAC_PUSH action (kernel commit
a45294af9e96 ("net/sched: act_mpls: Add action to push MPLS LSE before
Ethernet header")). This action let TC push an MPLS header before the
MAC header of a frame.
Example (encapsulate all outgoing frames with label 20, then add an
outer Ethernet header):
# tc filter add dev ethX matchall \
action mpls mac_push label 20 ttl 64 \
action vlan push_eth dst_mac 0a:00:00:00:00:02 \
src_mac 0a:00:00:00:00:01
This patch also adds an alias for ETH_P_TEB, since it is useful when
decapsulating MPLS packets that contain an Ethernet frame.
With MAC_PUSH, there's no previous Ethertype to modify. However, the
"protocol" option is still needed, because the kernel uses it to set
skb->protocol. So rename can_modify_ethtype() to can_set_ethtype().
Also add a test suite for m_mpls, which covers the new action and the
pre-existing ones.
Signed-off-by: Guillaume Nault <gnault@redhat.com>
Signed-off-by: David Ahern <dsahern@gmail.com>
70 lines
1.9 KiB
Bash
Executable File
70 lines
1.9 KiB
Bash
Executable File
#!/bin/sh
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. lib/generic.sh
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DEV="$(rand_dev)"
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ts_ip "$0" "Add $DEV dummy interface" link add dev $DEV up type dummy
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ts_tc "$0" "Add ingress qdisc" qdisc add dev $DEV ingress
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reset_qdisc()
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{
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ts_tc "$0" "Remove ingress qdisc" qdisc del dev $DEV ingress
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ts_tc "$0" "Add ingress qdisc" qdisc add dev $DEV ingress
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}
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ts_tc "$0" "Add mpls action pop" \
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filter add dev $DEV ingress protocol mpls_uc matchall \
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action mpls pop protocol ip
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ts_tc "$0" "Show ingress filters" filter show dev $DEV ingress
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test_on "mpls"
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test_on "pop protocol ip pipe"
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reset_qdisc
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ts_tc "$0" "Add mpls action push" \
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filter add dev $DEV ingress protocol ip matchall \
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action mpls push protocol mpls_uc label 20 tc 3 bos 1 ttl 64
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ts_tc "$0" "Show ingress filters" filter show dev $DEV ingress
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test_on "mpls"
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test_on "push"
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test_on "protocol mpls_uc"
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test_on "label 20"
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test_on "tc 3"
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test_on "bos 1"
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test_on "ttl 64"
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test_on "pipe"
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reset_qdisc
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ts_tc "$0" "Add mpls action mac_push" \
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filter add dev $DEV ingress matchall \
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action mpls mac_push protocol mpls_uc label 20 tc 3 bos 1 ttl 64
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ts_tc "$0" "Show ingress filters" filter show dev $DEV ingress
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test_on "mpls"
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test_on "mac_push"
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test_on "protocol mpls_uc"
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test_on "label 20"
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test_on "tc 3"
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test_on "bos 1"
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test_on "ttl 64"
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test_on "pipe"
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reset_qdisc
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ts_tc "$0" "Add mpls action modify" \
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filter add dev $DEV ingress protocol mpls_uc matchall \
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action mpls modify label 20 tc 3 ttl 64
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ts_tc "$0" "Show ingress filters" filter show dev $DEV ingress
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test_on "mpls"
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test_on "modify"
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test_on "label 20"
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test_on "tc 3"
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test_on "ttl 64"
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test_on "pipe"
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reset_qdisc
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ts_tc "$0" "Add mpls action dec_ttl" \
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filter add dev $DEV ingress protocol mpls_uc matchall \
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action mpls dec_ttl
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ts_tc "$0" "Show ingress filters" filter show dev $DEV ingress
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test_on "mpls"
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test_on "dec_ttl"
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test_on "pipe"
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