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selftests: forwarding: lib: Allow list of IPs for IGMPv3/MLDv2

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The testsuite that checks for mcast_max_groups functionality will need
to generate IGMP and MLD packets with configurable number of (S,G)
addresses. To that end, further extend igmpv3_is_in_get() and
mldv2_is_in_get() to allow a list of IP addresses instead of one
address.

Signed-off-by: Petr Machata <petrm@nvidia.com>
Acked-by: Nikolay Aleksandrov <razor@blackwall.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Petr Machata 2023-02-02 18:59:32 +01:00 committed by David S. Miller
parent 506a1ac9d3
commit 705d4bc7b6
1 changed files with 15 additions and 7 deletions
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22
tools/testing/selftests/net/forwarding/lib.sh
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@ -1768,11 +1768,12 @@ payload_template_nbytes()
igmpv3_is_in_get()
{
local GRP=$1; shift
local IP=$1; shift
local sources=("$@")
local igmpv3
local nsources=$(u16_to_bytes ${#sources[@]})
# IS_IN ( $IP )
# IS_IN ( $sources )
igmpv3=$(:
)"22:"$( : Type - Membership Report
)"00:"$( : Reserved
@ -1781,9 +1782,12 @@ igmpv3_is_in_get()
)"00:01:"$( : Number of Group Records
)"01:"$( : Record Type - IS_IN
)"00:"$( : Aux Data Len
)"00:01:"$( : Number of Sources
)"${nsources}:"$( : Number of Sources
)"$(ipv4_to_bytes $GRP):"$( : Multicast Address
)"$(ipv4_to_bytes $IP)"$( : Source Address
)"$(for src in "${sources[@]}"; do
ipv4_to_bytes $src
echo -n :
done)"$( : Source Addresses
)
local checksum=$(payload_template_calc_checksum "$igmpv3")
@ -1794,10 +1798,11 @@ mldv2_is_in_get()
{
local SIP=$1; shift
local GRP=$1; shift
local IP=$1; shift
local sources=("$@")
local hbh
local icmpv6
local nsources=$(u16_to_bytes ${#sources[@]})
hbh=$(:
)"3a:"$( : Next Header - ICMPv6
@ -1813,9 +1818,12 @@ mldv2_is_in_get()
)"00:01:"$( : Number of Group Records
)"01:"$( : Record Type - IS_IN
)"00:"$( : Aux Data Len
)"00:01:"$( : Number of Sources
)"${nsources}:"$( : Number of Sources
)"$(ipv6_to_bytes $GRP):"$( : Multicast address
)"$(ipv6_to_bytes $IP):"$( : Source Address
)"$(for src in "${sources[@]}"; do
ipv6_to_bytes $src
echo -n :
done)"$( : Source Addresses
)
local len=$(u16_to_bytes $(payload_template_nbytes $icmpv6))