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Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Simon Horman , Stefan Hajnoczi , "Michael S. Tsirkin" , Jason Wang , =?utf-8?q?Eugenio_P=C3=A9rez?= , Xuan Zhuo , "K. Y. Srinivasan" , Haiyang Zhang , Wei Liu , Dexuan Cui , Bryan Tan , Vishnu Dasa , Broadcom internal kernel review list , Shuah Khan , Long Li , Jonathan Corbet Cc: linux-kernel@vger.kernel.org, virtualization@lists.linux.dev, netdev@vger.kernel.org, kvm@vger.kernel.org, linux-hyperv@vger.kernel.org, linux-kselftest@vger.kernel.org, berrange@redhat.com, Sargun Dhillon , linux-doc@vger.kernel.org, Bobby Eshleman , Bobby Eshleman X-Mailer: b4 0.14.3 From: Bobby Eshleman Replace /proc/net parsing with ss(8) for detecting listening sockets in wait_for_listener() functions and add support for TCP, VSOCK, and Unix socket protocols. The previous implementation parsed /proc/net/tcp using awk to detect listening sockets, but this approach could not support vsock because vsock does not export socket information to /proc/net/. Instead, use ss so that we can detect listeners on tcp, vsock, and unix. The protocol parameter is now required for all wait_for_listener family functions (wait_for_listener, vm_wait_for_listener, host_wait_for_listener) to explicitly specify which socket type to wait for. ss is added to the dependency check in check_deps(). Reviewed-by: Stefano Garzarella Signed-off-by: Bobby Eshleman --- tools/testing/selftests/vsock/vmtest.sh | 47 +++++++++++++++++++++--------= ---- 1 file changed, 30 insertions(+), 17 deletions(-) diff --git a/tools/testing/selftests/vsock/vmtest.sh b/tools/testing/selfte= sts/vsock/vmtest.sh index 4b5929ffc9eb..0e681d4c3a15 100755 --- a/tools/testing/selftests/vsock/vmtest.sh +++ b/tools/testing/selftests/vsock/vmtest.sh @@ -182,7 +182,7 @@ check_args() { } =20 check_deps() { - for dep in vng ${QEMU} busybox pkill ssh; do + for dep in vng ${QEMU} busybox pkill ssh ss; do if [[ ! -x $(command -v "${dep}") ]]; then echo -e "skip: dependency ${dep} not found!\n" exit "${KSFT_SKIP}" @@ -337,21 +337,32 @@ wait_for_listener() local port=3D$1 local interval=3D$2 local max_intervals=3D$3 - local protocol=3Dtcp - local pattern + local protocol=3D$4 local i =20 - pattern=3D":$(printf "%04X" "${port}") " - - # for tcp protocol additionally check the socket state - [ "${protocol}" =3D "tcp" ] && pattern=3D"${pattern}0A" - for i in $(seq "${max_intervals}"); do - if awk -v pattern=3D"${pattern}" \ - 'BEGIN {rc=3D1} $2" "$4 ~ pattern {rc=3D0} END {exit rc}' \ - /proc/net/"${protocol}"*; then + case "${protocol}" in + tcp) + if ss --listening --tcp --numeric | grep -q ":${port} "; then + break + fi + ;; + vsock) + if ss --listening --vsock --numeric | grep -q ":${port} "; then + break + fi + ;; + unix) + # For unix sockets, port is actually the socket path + if ss --listening --unix | grep -q "${port}"; then + break + fi + ;; + *) + echo "Unknown protocol: ${protocol}" >&2 break - fi + ;; + esac sleep "${interval}" done } @@ -359,23 +370,25 @@ wait_for_listener() vm_wait_for_listener() { local ns=3D$1 local port=3D$2 + local protocol=3D$3 =20 vm_ssh "${ns}" <