selftests: add ping test with ping_group_range tuned

The 'ping' utility is able to manage two kind of sockets (raw or icmp),
depending on the sysctl ping_group_range. By default, ping_group_range is
set to '1 0', which forces ping to use an ip raw socket.

Let's replay the ping tests by allowing 'ping' to use the ip icmp socket.
After the previous patch, ipv4 tests results are the same with both kinds
of socket. For ipv6, there are a lot a new failures (the previous patch
fixes only two cases).

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/tools/testing/selftests/net/fcnal-test.sh b/tools/testing/selftests/net/fcnal-test.sh
index 47c4d4b..54701c8 100755 (executable)
--- a/tools/testing/selftests/net/fcnal-test.sh
+++ b/tools/testing/selftests/net/fcnal-test.sh
@@ -810,10 +810,16 @@ ipv4_ping()
        setup
        set_sysctl net.ipv4.raw_l3mdev_accept=1 2>/dev/null
        ipv4_ping_novrf
+       setup
+       set_sysctl net.ipv4.ping_group_range='0 2147483647' 2>/dev/null
+       ipv4_ping_novrf
 
        log_subsection "With VRF"
        setup "yes"
        ipv4_ping_vrf
+       setup "yes"
+       set_sysctl net.ipv4.ping_group_range='0 2147483647' 2>/dev/null
+       ipv4_ping_vrf
 }
 
 ################################################################################
@@ -2348,10 +2354,16 @@ ipv6_ping()
        log_subsection "No VRF"
        setup
        ipv6_ping_novrf
+       setup
+       set_sysctl net.ipv4.ping_group_range='0 2147483647' 2>/dev/null
+       ipv6_ping_novrf
 
        log_subsection "With VRF"
        setup "yes"
        ipv6_ping_vrf
+       setup "yes"
+       set_sysctl net.ipv4.ping_group_range='0 2147483647' 2>/dev/null
+       ipv6_ping_vrf
 }
 
 ################################################################################