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| author | Petr Machata <petrm@mellanox.com> | 2018-11-19 19:11:10 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-11-20 04:59:43 +0300 |
| commit | d0540d1706c3cfbb51769de02858f846d3836389 (patch) | |
| tree | a72eb282261d71add64afe0b0297371f38ca1918 /tools | |
| parent | 601bc1c13916899a14e682ada3dfa3ec21b13318 (diff) | |
| download | linux-d0540d1706c3cfbb51769de02858f846d3836389.tar.xz | |
selftests: forwarding: lib: Add in_ns()
In order to run a certain command inside another network namespace, it's
possible to use "ip netns exec ns command". However then one can't use
functions defined in lib.sh or a test suite.
One option is to do "ip netns exec ns bash -c command", provided that
all functions that one wishes to use (and their dependencies) are
published using "export -f". That may not be practical.
Therefore, introduce a helper in_ns(), which wraps a given command in a
boilerplate of "ip netns exec" and "source lib.sh", thus making all
library functions available. (Custom functions that a script wishes to
run within a namespace still need to be exported.)
Because quotes in "$@" aren't recognized in heredoc, hand-expand the
array in an explicit for loop, leveraging printf %q to handle proper
quoting.
Signed-off-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/testing/selftests/net/forwarding/lib.sh | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/tools/testing/selftests/net/forwarding/lib.sh b/tools/testing/selftests/net/forwarding/lib.sh index bb0e9fdf893e..93d6e9df483e 100644 --- a/tools/testing/selftests/net/forwarding/lib.sh +++ b/tools/testing/selftests/net/forwarding/lib.sh @@ -783,6 +783,17 @@ multipath_eval() log_info "Expected ratio $weights_ratio Measured ratio $packets_ratio" } +in_ns() +{ + local name=$1; shift + + ip netns exec $name bash <<-EOF + NUM_NETIFS=0 + source lib.sh + $(for a in "$@"; do printf "%q${IFS:0:1}" "$a"; done) + EOF +} + ############################################################################## # Tests |