[PATCH v2 00/11] Improve command dispatch in test scripts

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David Gibson

8 Sep 2022 8 Sep '22

3:49 a.m.

Sorry for the resend, but I found and fixed a couple of warts in this series. The test scripts need to dispatch commands in various different contexts: on the host, in namespaces, and in guests. Currently this is done by running each context in a tmux pane and simulating typing into that pane using tmux commands. This has a number of problems: * It's slow * Getting the results from programs is tricky and error prone. We can misparse output if: * The window isn't large enough * Commands produce output which looks like a shell prompt * The shell doesn't have the prompt we expect * A accidental keypress while the tests are running can mess up the test run * We have to issue explicit "echo $?" commands to check if things succeeded This series adds a new subsystem to the test scripts for dispatching commands which accurately preserves output (both stdout and stderr), and exit codes. Most of the testsuite is converted to this new system. For now the distro tests still rely on the old approach, since they have some complications that require additional handling. That does, alas, mean we have some ugly transitional code remaining. Oh well, we should be able to clean that up at some point. This series is pased on the previous series cleaning up the performance tests. Changes since v1: * Removed a couple of commented debugging lines in patch 9/11 * Removed a no longer necessary pipe-pane in patch 9/11 David Gibson (11): test: Correctly match "background" with "wait" commands test: Context execution helpers test: Allow a tmux pane to watch commands executed in contexts test: Integration of old-style pane execution and new context execution test: Issue host commands via context for most tests test: Use new-style contexts for passt pane in the pasta and passt tests test: Add nsholder utility test: Extend context system to run commands in namespace for pasta tests test: Use context system for guest commands test: Use context system for two_guests tests test: Use new-style command issue for passt_in_ns tests test/.gitignore | 3 + test/Makefile | 13 +- test/lib/context | 125 +++++++++++++++++ test/lib/layout | 61 +++------ test/lib/setup | 274 +++++++++++++++++++------------------- test/lib/term | 84 ++++++++++++ test/lib/test | 138 ++++++++----------- test/nsholder.c | 117 ++++++++++++++++ test/passt.mbuto | 32 ++++- test/run | 1 + test/shutdown/passt | 4 +- test/shutdown/passt_in_ns | 4 +- test/tcp/passt | 2 + test/tcp/passt_in_ns | 17 ++- test/tcp/pasta | 1 - test/udp/passt | 1 + test/udp/passt_in_ns | 5 +- test/udp/pasta | 1 - 18 files changed, 606 insertions(+), 277 deletions(-) create mode 100644 test/lib/context create mode 100644 test/nsholder.c -- 2.37.3

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David Gibson

8 Sep 8 Sep

3:49 a.m.

New subject: [PATCH v2 01/11] test: Correctly match "background" with "wait" commands

Our test DSL has a number of paired commands to run something in the background in a pane, then later to wait for it to complete. However, in some of the tests we have these mismatched - starting a command in one pane, then waiting for it in another. We appear to get away with this for some reason, but it's not correct and future changes make it cause more problems. Signed-off-by: David Gibson --- test/tcp/passt_in_ns | 8 ++++---- test/tcp/pasta | 1 - test/udp/passt_in_ns | 4 ++-- test/udp/pasta | 1 - 4 files changed, 6 insertions(+), 8 deletions(-) diff --git a/test/tcp/passt_in_ns b/test/tcp/passt_in_ns index ab22485..976e4e9 100644 --- a/test/tcp/passt_in_ns +++ b/test/tcp/passt_in_ns @@ -44,7 +44,7 @@ check [ "__HOST_MD5_BIG__" = "__MD5_BIG__" ] test TCP/IPv4: guest to ns: big transfer nsb socat -u TCP4-LISTEN:10002 OPEN:__TEMP_BIG__,create,trunc guest socat -u OPEN:test_big.bin TCP4:__GW__:10002 -hostw +nsw hout HOST_MD5_BIG md5sum __TEMP_BIG__ | cut -d' ' -f1 check [ "__HOST_MD5_BIG__" = "__MD5_BIG__" ] @@ -108,7 +108,7 @@ check [ "__HOST_MD5_SMALL__" = "__MD5_SMALL__" ] test TCP/IPv4: guest to ns: small transfer nsb socat -u TCP4-LISTEN:10002 OPEN:__TEMP_SMALL__,create,trunc guest socat -u OPEN:test_small.bin TCP4:__GW__:10002 -hostw +nsw hout HOST_MD5_SMALL md5sum __TEMP_SMALL__ | cut -d' ' -f1 check [ "__HOST_MD5_SMALL__" = "__MD5_SMALL__" ] @@ -167,7 +167,7 @@ check [ "__HOST_MD5_BIG__" = "__MD5_BIG__" ] test TCP/IPv6: guest to ns: big transfer nsb socat -u TCP6-LISTEN:10002 OPEN:__TEMP_BIG__,create,trunc guest socat -u OPEN:test_big.bin TCP6:[__GW6__%__IFNAME__]:10002 -hostw +nsw hout HOST_MD5_BIG md5sum __TEMP_BIG__ | cut -d' ' -f1 check [ "__HOST_MD5_BIG__" = "__MD5_BIG__" ] @@ -227,7 +227,7 @@ check [ "__HOST_MD5_SMALL__" = "__MD5_SMALL__" ] test TCP/IPv6: guest to ns: small transfer nsb socat -u TCP6-LISTEN:10002 OPEN:__TEMP_SMALL__ guest socat -u OPEN:test_small.bin TCP6:[__GW6__%__IFNAME__]:10002 -hostw +nsw hout HOST_MD5_SMALL md5sum __TEMP_SMALL__ | cut -d' ' -f1 check [ "__HOST_MD5_SMALL__" = "__MD5_SMALL__" ] diff --git a/test/tcp/pasta b/test/tcp/pasta index 0d6c729..a13a2ff 100644 --- a/test/tcp/pasta +++ b/test/tcp/pasta @@ -80,7 +80,6 @@ ns socat -u OPEN:__TEMP_NS_BIG__ TCP6:[::1]:10003 hostw hout HOST_MD5_BIG md5sum __TEMP_BIG__ | cut -d' ' -f1 check [ "__HOST_MD5_BIG__" = "__MD5_BIG__" ] -nsw test TCP/IPv6: ns to host (via tap): big transfer hostb socat -u TCP6-LISTEN:10003 OPEN:__TEMP_BIG__,create,trunc diff --git a/test/udp/passt_in_ns b/test/udp/passt_in_ns index 8f8090b..f5ea402 100644 --- a/test/udp/passt_in_ns +++ b/test/udp/passt_in_ns @@ -45,7 +45,7 @@ check [ "__HOST_MD5__" = "__MD5__" ] test UDP/IPv4: guest to ns nsb (socat -u UDP4-LISTEN:10002 STDOUT & echo $! > __SC_PID__) | tee __TEMP_NS__ | (grep -qm1 "END_OF_TEST" && kill $(cat __SC_PID__)) guest socat -u OPEN:test.bin UDP4:__GW__:10002 -hostw +nsw hout HOST_MD5 md5sum __TEMP__ | cut -d' ' -f1 check [ "__HOST_MD5__" = "__MD5__" ] @@ -106,7 +106,7 @@ check [ "__HOST_MD5__" = "__MD5__" ] test UDP/IPv6: guest to ns nsb (socat -u UDP6-LISTEN:10002 STDOUT & echo $! > __SC_PID__) | tee __TEMP_NS__ | (grep -qm1 "END_OF_TEST" && kill $(cat __SC_PID__)) guest socat -u OPEN:test.bin UDP6:[__GW6__%__IFNAME__]:10002 -hostw +nsw hout HOST_MD5 md5sum __TEMP__ | cut -d' ' -f1 check [ "__HOST_MD5__" = "__MD5__" ] diff --git a/test/udp/pasta b/test/udp/pasta index 25063ea..0767e0b 100644 --- a/test/udp/pasta +++ b/test/udp/pasta @@ -58,7 +58,6 @@ ns socat -u OPEN:__TEMP_NS__ UDP6:[::1]:10003 hostw hout HOST_MD5 md5sum __TEMP__ | cut -d' ' -f1 check [ "__HOST_MD5__" = "__MD5__" ] -nsw test UDP/IPv6: ns to host (via tap) hostb (socat -u UDP6-LISTEN:10003 STDOUT & echo $! > __NC_PID__) | tee __TEMP__ | (grep -qm1 "END_OF_TEST" && kill $(cat __NC_PID__)) -- 2.37.3

David Gibson

3:49 a.m.

New subject: [PATCH v2 02/11] test: Context execution helpers

For the tests, we need to run commands in various contexts: in the host, in a guest or in a namespace. Currently we do this by running each context in a tmux pane, and using tmux commands to type the commands into the relevant pane, then screen-scrape the output for the results if we need them. This is very fragile, because we have to make various assumptions to parse the output. Those can break if a shell doesn't have the prompt we expect, if the tmux pane is too small or in various other conditions. This starts some library functions for a new "context" system, that provides a common way to invoke commands in a given context, in a way that properly preserves stdout, stderr and the process return code. Signed-off-by: David Gibson --- test/lib/context | 80 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 80 insertions(+) create mode 100644 test/lib/context diff --git a/test/lib/context b/test/lib/context new file mode 100644 index 0000000..babf59a --- /dev/null +++ b/test/lib/context @@ -0,0 +1,80 @@ +#! /bin/sh +# +# SPDX-License-Identifier: AGPL-3.0-or-later +# +# PASST - Plug A Simple Socket Transport +# for qemu/UNIX domain socket mode +# +# PASTA - Pack A Subtle Tap Abstraction +# for network namespace/tap device mode +# +# test/lib/context - Run commands in different contexts (host, guest, namespace etc.) +# +# Copyright Red Hat +# Author: David Gibson + +# context_setup_host() - Create a new context for running commands on the host +# $1: Context name +context_setup_host() { + __name="$1" + __prefix="${LOGDIR}/context_${__name}" + echo sh -c > "${__prefix}.enter" + echo -n "${__name}$ " > "${__prefix}.log" +} + +# context_teardown() - Remove a context (leave log files intact) +# $1: Context name +context_teardown() { + __name="$1" + __prefix="${LOGDIR}/context_${__name}" + rm -f "${__prefix}.enter" +} + +# context_exists() - Test if a context currently exists +# $1: Context name +context_exists() { + __name="$1" + __prefix="${LOGDIR}/context_${__name}" + [ -f "${__prefix}.enter" ] +} + +# context_run() - Run a shell command in a context, and wait for it to finish +# $1: Context name +# $*: Command to start +context_run() { + __name="$1" + __prefix="${LOGDIR}/context_${__name}" + __enter="$(cat "${__prefix}.enter")" + shift + echo "$*" >> "${__prefix}.log" + mkfifo "${__prefix}.stdout" "${__prefix}.stderr" + tee -a "${__prefix}.log" < "${__prefix}.stdout" & + tee -a "${__prefix}.log" < "${__prefix}.stderr" >&2 & + ${__enter} "$*" >> "${__prefix}.stdout" 2>> "${__prefix}.stderr" + rc=$? + rm "${__prefix}.stdout" "${__prefix}.stderr" + [ ${DEBUG} -eq 1 ] && echo "[Exit code: $rc]" >> "${__prefix}.log" + echo -n "${__name}$ " >> "${__prefix}.log" + return $rc +} + +# context_run_bg() - Start a shell command in a context +# $1: Context name +# $*: Command to start +context_run_bg() { + __name="$1" + __prefix="${LOGDIR}/context_${__name}" + context_run "$@" & + echo $! > "${__prefix}.pid" +} + +# context_wait() - Wait for background command in a context to complete +# $1: Context name +# Returns the status of the completed command +context_wait() { + __name="$1" + __prefix="${LOGDIR}/context_${__name}" + __pid=$(cat "${__prefix}.pid") + rm "${__prefix}.pid" + wait ${__pid} +} -- 2.37.3

David Gibson

3:49 a.m.

New subject: [PATCH v2 03/11] test: Allow a tmux pane to watch commands executed in contexts

We're moving to a new way of the tests dispatching commands to running in contexts (host, guest, namespace, etc.). As we make this transition, though, we still want the user to be able to watch the commands running in a context, as they previously could from the commands issued in the pane. Add a helper to set up a pane to watch a context's log to allow this. In some cases we currently issue commands from several different logical contexts in the same pane, so allow a pane to watch several contexts at once. Also use tail's --retry option to allow starting the watch before we've initialized the context which will be useful in some cases. Signed-off-by: David Gibson --- test/lib/term | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/test/lib/term b/test/lib/term index ddabf8d..fa34873 100755 --- a/test/lib/term +++ b/test/lib/term @@ -241,6 +241,24 @@ pane_status() { return ${__status} } +# pane_watch_context() - Set up pane to watch commands executing in context(s) +# $1: Pane number +# $2: Description (for pane label) +# $@: Context name or names +pane_watch_contexts() { + __pane_number="${1}" + __desc="${2}" + shift 2 + __name="${2}" + + tmux select-pane -t ${__pane_number} -T "${__desc}" + __cmd="tail -f --retry" + for c; do + __cmd="${__cmd} ${LOGDIR}/context_${c}.log" + done + cmd_write ${__pane_number} "${__cmd}" +} + # status_file_end() - Display and log messages when tests from one file are done status_file_end() { [ -z "${STATUS_FILE}" ] && return -- 2.37.3

Stefano Brivio

9 Sep 9 Sep

5:18 p.m.

New subject: [PATCH v2 03/11] test: Allow a tmux pane to watch commands executed in contexts

Nit: On Thu, 8 Sep 2022 11:49:12 +1000 David Gibson wrote:

...

We're moving to a new way of the tests dispatching commands to running in contexts (host, guest, namespace, etc.). As we make this transition, though, we still want the user to be able to watch the commands running in a context, as they previously could from the commands issued in the pane.

Add a helper to set up a pane to watch a context's log to allow this. In some cases we currently issue commands from several different logical contexts in the same pane, so allow a pane to watch several contexts at once. Also use tail's --retry option to allow starting the watch before we've initialized the context which will be useful in some cases.

Signed-off-by: David Gibson --- test/lib/term | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+)

diff --git a/test/lib/term b/test/lib/term index ddabf8d..fa34873 100755 --- a/test/lib/term +++ b/test/lib/term @@ -241,6 +241,24 @@ pane_status() { return ${__status} }

+# pane_watch_context() - Set up pane to watch commands executing in context(s) +# $1: Pane number +# $2: Description (for pane label) +# $@: Context name or names +pane_watch_contexts() { + __pane_number="${1}" + __desc="${2}" + shift 2 + __name="${2}" + + tmux select-pane -t ${__pane_number} -T "${__desc}" + __cmd="tail -f --retry" + for c; do + __cmd="${__cmd} ${LOGDIR}/context_${c}.log"

Mixed tab and spaces. -- Stefano

David Gibson

10 Sep 10 Sep

8:36 a.m.

New subject: [PATCH v2 03/11] test: Allow a tmux pane to watch commands executed in contexts

On Fri, Sep 09, 2022 at 05:18:43PM +0200, Stefano Brivio wrote:

...

Nit:

On Thu, 8 Sep 2022 11:49:12 +1000 David Gibson wrote:

...
We're moving to a new way of the tests dispatching commands to running in contexts (host, guest, namespace, etc.). As we make this transition, though, we still want the user to be able to watch the commands running in a context, as they previously could from the commands issued in the pane.

Add a helper to set up a pane to watch a context's log to allow this. In some cases we currently issue commands from several different logical contexts in the same pane, so allow a pane to watch several contexts at once. Also use tail's --retry option to allow starting the watch before we've initialized the context which will be useful in some cases.

Signed-off-by: David Gibson --- test/lib/term | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+)

diff --git a/test/lib/term b/test/lib/term index ddabf8d..fa34873 100755 --- a/test/lib/term +++ b/test/lib/term @@ -241,6 +241,24 @@ pane_status() { return ${__status} }

+# pane_watch_context() - Set up pane to watch commands executing in context(s) +# $1: Pane number +# $2: Description (for pane label) +# $@: Context name or names +pane_watch_contexts() { + __pane_number="${1}" + __desc="${2}" + shift 2 + __name="${2}" + + tmux select-pane -t ${__pane_number} -T "${__desc}" + __cmd="tail -f --retry" + for c; do + __cmd="${__cmd} ${LOGDIR}/context_${c}.log"

Mixed tab and spaces.

Oops, fixed. I finally got around to changing my emacs config to change sh-basic-offset to 8 by default, so this should be less likely to happen in future. -- David Gibson | I'll have my music baroque, and my code david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_ | _way_ _around_! http://www.ozlabs.org/~dgibson

David Gibson

8 Sep 8 Sep

3:49 a.m.

New subject: [PATCH v2 04/11] test: Integration of old-style pane execution and new context execution

We're creating a system for tests to more reliably execute commands in various contexts (e.g. host, guest, namespace). That transition is going to happen over a number of steps though, so in the meantime we need to deal with both the old-style issuing of commands via typing into and screen scraping tmux panels, and the new-style system for executing commands in context. Introduce some transitional helpers which will issue a command via context if the requested context is initialized, but will otherwise fall back to the old style tmux panel based method. Re-implement the various test DSL commands in terms of these new helpers. Signed-off-by: David Gibson --- test/lib/term | 63 +++++++++++++++++++++++ test/lib/test | 138 +++++++++++++++++++++----------------------------- test/run | 1 + 3 files changed, 121 insertions(+), 81 deletions(-) diff --git a/test/lib/term b/test/lib/term index fa34873..a06c80b 100755 --- a/test/lib/term +++ b/test/lib/term @@ -259,6 +259,69 @@ pane_watch_contexts() { cmd_write ${__pane_number} "${__cmd}" } +# pane_or_context_run() - Issue a command in given context or pane +# $1: Context or lower-case pane name +# $@: Command to issue +pane_or_context_run() { + __name="${1}" + shift + if context_exists "${__name}"; then + context_run "${__name}" "$@" >/dev/null 2>&1 + else + __uc="$(echo "${__name}" | tr [a-z] [A-Z])" + pane_run "${__uc}" "$@" + pane_status "${__uc}" + fi +} + +# pane_or_context_run_bg() - Issue a background command in given context or pane +# $1: Context or lower-case pane name +# $@: Command to issue +pane_or_context_run_bg() { + __name="${1}" + shift + if context_exists "${__name}"; then + context_run_bg "${__name}" "$@" >/dev/null 2>&1 + else + __uc="$(echo "${__name}" | tr [a-z] [A-Z])" + pane_run "${__uc}" "$@" + fi +} + +# pane_or_context_output() - Get output from a command in a context or pane +# $1: Context or lower-case pane name +# $@: Command to issue +pane_or_context_output() { + __name="${1}" + shift + if context_exists "${__name}"; then + __output=$(context_run "${__name}" "$@" 2>/dev/null) + if [ -z "${__output}" ]; then + echo "@EMPTY@" + else + echo "${__output}" + fi + else + __uc="$(echo "${__name}" | tr [a-z] [A-Z])" + pane_run "${__uc}" "$@" + pane_wait "${__uc}" + pane_parse "${__uc}" + fi +} + +# pane_or_context_wait() - Wait for a command to be done in a context or pane +# $1: Context or lower-case pane name +pane_or_context_wait() { + __name="${1}" + shift + if context_exists "${__name}"; then + context_wait "${__name}" + else + __uc="$(echo "${__name}" | tr [a-z] [A-Z])" + pane_wait "${__uc}" + fi +} + # status_file_end() - Display and log messages when tests from one file are done status_file_end() { [ -z "${STATUS_FILE}" ] && return diff --git a/test/lib/test b/test/lib/test index 5a6c01c..0d06afd 100755 --- a/test/lib/test +++ b/test/lib/test @@ -15,8 +15,8 @@ # test_iperf3() - Ugly helper for iperf3 directive # $1: Variable name: to put the measure bandwidth into -# $2: Source/client pane name, can be lowercase -# $3: Destination/server pane name, can be lowercase +# $2: Source/client context +# $3: Destination/server context # $4: Destination name or address for client # $5: Port number, ${i} is translated to process index # $6: Number of processes to run in parallel @@ -24,14 +24,14 @@ # $@: Client options test_iperf3() { __var="${1}"; shift - __cpane="$(echo "${1}" | tr [a-z] [A-Z])"; shift - __spane="$(echo "${1}" | tr [a-z] [A-Z])"; shift + __cctx="${1}"; shift + __sctx="${1}"; shift __dest="${1}"; shift __port="${1}"; shift __procs="$((${1} - 1))"; shift __time="${1}"; shift - pane_run "${__spane}" \ + pane_or_context_run_bg "${__sctx}" \ '(' \ ' for i in $(seq 0 '${__procs}'); do' \ ' iperf3 -s1J -p'${__port}' -i'${__time} \ @@ -40,7 +40,9 @@ test_iperf3() { ' wait' \ ')' - pane_run "${__cpane}" \ + sleep 1 # Wait for server to be ready + + pane_or_context_run "${__cctx}" \ '(' \ ' for i in $(seq 0 '${__procs}'); do' \ ' iperf3 -c '${__dest}' -p '${__port} \ @@ -49,8 +51,7 @@ test_iperf3() { ' wait' \ ')' - pane_status "${__cpane}" - pane_status "${__spane}" + pane_or_context_wait "${__sctx}" __jval=".end.sum_received.bits_per_second" for __opt in ${@}; do @@ -58,14 +59,10 @@ test_iperf3() { [ "${__opt}" = "-u" ] && __jval=".intervals[0].sum.bits_per_second" done - pane_run "${__spane}" \ - 'cat s*.json | jq -rMs "map('${__jval}') | add"' - pane_wait "${__spane}" - __bw="$(pane_parse "${__spane}")" - - pane_run "${__spane}" \ + __bw=$(pane_or_context_output "${__sctx}" \ + 'cat s*.json | jq -rMs "map('${__jval}') | add"') + pane_or_context_run "${__sctx}" \ 'for i in $(seq 0 '${__procs}'); do rm s${i}.json; done' - pane_status "${__spane}" TEST_ONE_subs="$(list_add_pair "${TEST_ONE_subs}" "__${__var}__" "${__bw}" )" } @@ -122,155 +119,134 @@ test_one_line() { TEST_ONE_perf_nok=0 ;; "host") - pane_run HOST "${__arg}" - pane_status HOST || TEST_ONE_nok=1 + pane_or_context_run host "${__arg}" || TEST_ONE_nok=1 ;; "hostb") - pane_run HOST "${__arg}" + pane_or_context_run_bg host "${__arg}" ;; "hostw") - pane_status HOST || TEST_ONE_nok=1 + pane_or_context_wait host || TEST_ONE_nok=1 ;; "hint") tmux send-keys -t ${PANE_HOST} "C-c" ;; "htools") - pane_run HOST 'which '"${__arg}"' >/dev/null' - pane_status HOST || TEST_ONE_skip=1 + pane_or_context_run host 'which '"${__arg}"' >/dev/null' || TEST_ONE_skip=1 ;; "passt") - pane_run PASST "${__arg}" - pane_status PASST || TEST_ONE_nok=1 + pane_or_context_run passt "${__arg}" || TEST_ONE_nok=1 ;; "passtb") - pane_run PASST "${__arg}" + pane_or_context_run_bg passt "${__arg}" ;; "passtw") - pane_status PASST || TEST_ONE_nok=1 + pane_or_context_wait passt || TEST_ONE_nok=1 ;; "pout") __varname="${__arg%% *}" - pane_run PASST "${__arg#* }" - pane_wait PASST - TEST_ONE_subs="$(list_add_pair "${TEST_ONE_subs}" "__${__varname}__" "$(pane_parse PASST)")" + __output="$(pane_or_context_output passt "${__arg#* }")" + TEST_ONE_subs="$(list_add_pair "${TEST_ONE_subs}" "__${__varname}__" "${__output}")" ;; "guest") - pane_run GUEST "${__arg}" - pane_status GUEST || TEST_ONE_nok=1 + pane_or_context_run guest "${__arg}" || TEST_ONE_nok=1 ;; "guestb") - pane_run GUEST "${__arg}" + pane_or_context_run_bg guest "${__arg}" ;; "guestw") - pane_status GUEST || TEST_ONE_nok=1 + pane_or_context_wait guest || TEST_ONE_nok=1 ;; "guest1") - pane_run GUEST_1 "${__arg}" - pane_status GUEST_1 || TEST_ONE_nok=1 + pane_or_context_run guest_1 "${__arg}" || TEST_ONE_nok=1 ;; "guest1b") - pane_run GUEST_1 "${__arg}" + pane_or_context_run_bg guest_1 "${__arg}" ;; "guest1w") - pane_status GUEST_1 || TEST_ONE_nok=1 + pane_or_context_wait guest_1 || TEST_ONE_nok=1 ;; "gtools") - pane_run GUEST 'which '"${__arg}"' >/dev/null' - pane_status GUEST || TEST_ONE_skip=1 + pane_or_context_run guest 'which '"${__arg}"' >/dev/null' || TEST_ONE_skip=1 ;; "g1tools") - pane_run GUEST_1 'which '"${__arg}"' >/dev/null' - pane_status GUEST_1 || TEST_ONE_skip=1 + pane_or_context_run guest_1 'which '"${__arg}"' >/dev/null' || TEST_ONE_skip=1 ;; "g2tools") - pane_run GUEST_2 'which '"${__arg}"' >/dev/null' - pane_status GUEST_2 || TEST_ONE_skip=1 + pane_or_context_run guest_2 'which '"${__arg}"' >/dev/null' || TEST_ONE_skip=1 ;; "guest2") - pane_run GUEST_2 "${__arg}" - pane_status GUEST_2 || TEST_ONE_nok=1 + pane_or_context_run guest_2 "${__arg}" || TEST_ONE_nok=1 ;; "guest2b") - pane_run GUEST_2 "${__arg}" + pane_or_context_run_bg guest_2 "${__arg}" ;; "guest2w") - pane_status GUEST_2 || TEST_ONE_nok=1 + pane_or_context_wait guest_2 || TEST_ONE_nok=1 ;; "ns") - pane_run NS "${__arg}" - pane_status NS || TEST_ONE_nok=1 + pane_or_context_run ns "${__arg}" || TEST_ONE_nok=1 ;; "ns1") - pane_run NS1 "${__arg}" - pane_status NS1 || TEST_ONE_nok=1 + pane_or_context_run ns1 "${__arg}" || TEST_ONE_nok=1 ;; "ns2") - pane_run NS2 "${__arg}" - pane_status NS2 || TEST_ONE_nok=1 + pane_or_context_run ns2 "${__arg}" || TEST_ONE_nok=1 ;; "nsb") - pane_run NS "${__arg}" + pane_or_context_run_bg ns "${__arg}" ;; "ns1b") - pane_run NS1 "${__arg}" + pane_or_context_run_bg ns1 "${__arg}" ;; "ns2b") - pane_run NS2 "${__arg}" + pane_or_context_run_bg ns2 "${__arg}" ;; "nsw") - pane_status NS || TEST_ONE_nok=1 + pane_or_context_wait ns || TEST_ONE_nok=1 ;; "ns1w") - pane_status NS1 || TEST_ONE_nok=1 + pane_or_context_wait ns1 || TEST_ONE_nok=1 ;; "ns2w") - pane_status NS2 || TEST_ONE_nok=1 + pane_or_context_wait ns2 || TEST_ONE_nok=1 ;; "nstools") - pane_run NS 'which '"${__arg}"' >/dev/null' - pane_status NS || TEST_ONE_skip=1 + pane_or_context_run ns 'which '"${__arg}"' >/dev/null' || TEST_ONE_skip=1 ;; "gout") __varname="${__arg%% *}" - pane_run GUEST "${__arg#* }" - pane_wait GUEST - TEST_ONE_subs="$(list_add_pair "${TEST_ONE_subs}" "__${__varname}__" "$(pane_parse GUEST)")" + __output="$(pane_or_context_output guest "${__arg#* }")" + TEST_ONE_subs="$(list_add_pair "${TEST_ONE_subs}" "__${__varname}__" "${__output}")" ;; "g1out") __varname="${__arg%% *}" - pane_run GUEST_1 "${__arg#* }" - pane_wait GUEST_1 - TEST_ONE_subs="$(list_add_pair "${TEST_ONE_subs}" "__${__varname}__" "$(pane_parse GUEST_1)")" + __output="$(pane_or_context_output guest_1 "${__arg#* }")" + TEST_ONE_subs="$(list_add_pair "${TEST_ONE_subs}" "__${__varname}__" "${__output}")" ;; "g2out") __varname="${__arg%% *}" - pane_run GUEST_2 "${__arg#* }" - pane_wait GUEST_2 - TEST_ONE_subs="$(list_add_pair "${TEST_ONE_subs}" "__${__varname}__" "$(pane_parse GUEST_2)")" + __output="$(pane_or_context_output guest_2 "${__arg#* }")" + TEST_ONE_subs="$(list_add_pair "${TEST_ONE_subs}" "__${__varname}__" "${__output}")" ;; "hout") __varname="${__arg%% *}" - pane_run HOST "${__arg#* }" - pane_wait HOST - TEST_ONE_subs="$(list_add_pair "${TEST_ONE_subs}" "__${__varname}__" "$(pane_parse HOST)")" + __output="$(pane_or_context_output host "${__arg#* }")" + TEST_ONE_subs="$(list_add_pair "${TEST_ONE_subs}" "__${__varname}__" "${__output}")" ;; "nsout") __varname="${__arg%% *}" - pane_run NS "${__arg#* }" - pane_wait NS - TEST_ONE_subs="$(list_add_pair "${TEST_ONE_subs}" "__${__varname}__" "$(pane_parse NS)")" + __output="$(pane_or_context_output ns "${__arg#* }")" + TEST_ONE_subs="$(list_add_pair "${TEST_ONE_subs}" "__${__varname}__" "${__output}")" ;; "ns1out") __varname="${__arg%% *}" - pane_run NS1 "${__arg#* }" - pane_wait NS1 - TEST_ONE_subs="$(list_add_pair "${TEST_ONE_subs}" "__${__varname}__" "$(pane_parse NS1)")" + __output="$(pane_or_context_output ns1 "${__arg#* }")" + TEST_ONE_subs="$(list_add_pair "${TEST_ONE_subs}" "__${__varname}__" "${__output}")" ;; "ns2out") __varname="${__arg%% *}" - pane_run NS2 "${__arg#* }" - pane_wait NS2 - TEST_ONE_subs="$(list_add_pair "${TEST_ONE_subs}" "__${__varname}__" "$(pane_parse NS2)")" + __output="$(pane_or_context_output ns2 "${__arg#* }")" + TEST_ONE_subs="$(list_add_pair "${TEST_ONE_subs}" "__${__varname}__" "${__output}")" ;; "check") info_check "${__arg}" diff --git a/test/run b/test/run index aa9a380..0ec1334 100755 --- a/test/run +++ b/test/run @@ -39,6 +39,7 @@ COMMIT="$(git log --oneline --no-decorate -1)" . lib/util . lib/setup +. lib/context . lib/term . lib/perf_report . lib/layout -- 2.37.3

David Gibson

3:49 a.m.

New subject: [PATCH v2 05/11] test: Issue host commands via context for most tests

Convert most of the tests to use the new-style system for issuing commands for all host commands. We leave the distro tests for now: they use the same pane for both host and guest commands which we'll need some more things to deal with. Signed-off-by: David Gibson --- test/lib/layout | 20 ++++++++++---------- test/lib/setup | 47 ++++++++++++++++++++++++++++++++--------------- 2 files changed, 42 insertions(+), 25 deletions(-) diff --git a/test/lib/layout b/test/lib/layout index 2d6b197..09c213a 100644 --- a/test/lib/layout +++ b/test/lib/layout @@ -31,8 +31,12 @@ layout_host() { tmux send-keys -t ${PANE_INFO} -N 100 C-m tmux select-pane -t ${PANE_INFO} -T "test log" - tmux pipe-pane -O -t ${PANE_HOST} "cat >> ${LOGDIR}/pane_host.log" - tmux select-pane -t ${PANE_HOST} -T "host" + if context_exists host; then + pane_watch_contexts 0 host host + else + tmux pipe-pane -O -t ${PANE_HOST} "cat >> ${LOGDIR}/pane_host.log" + tmux select-pane -t ${PANE_HOST} -T "host" + fi info_layout "host commands only" @@ -64,8 +68,7 @@ layout_pasta() { tmux send-keys -t ${PANE_INFO} -N 100 C-m tmux select-pane -t ${PANE_INFO} -T "test log" - tmux pipe-pane -O -t ${PANE_HOST} "cat >> ${LOGDIR}/pane_host.log" - tmux select-pane -t ${PANE_HOST} -T "host" + pane_watch_contexts ${PANE_HOST} host host tmux pipe-pane -O -t ${PANE_PASST} "cat >> ${LOGDIR}/pane_passt.log" tmux select-pane -t ${PANE_PASST} -T "pasta" @@ -100,8 +103,7 @@ layout_passt() { tmux send-keys -t ${PANE_INFO} -N 100 C-m tmux select-pane -t ${PANE_INFO} -T "test log" - tmux pipe-pane -O -t ${PANE_HOST} "cat >> ${LOGDIR}/pane_host.log" - tmux select-pane -t ${PANE_HOST} -T "host" + pane_watch_contexts ${PANE_HOST} host host tmux pipe-pane -O -t ${PANE_PASST} "cat >> ${LOGDIR}/pane_passt.log" tmux select-pane -t ${PANE_PASST} -T "passt" @@ -141,8 +143,7 @@ layout_passt_in_pasta() { tmux send-keys -t ${PANE_INFO} -N 100 C-m tmux select-pane -t ${PANE_INFO} -T "test log" - tmux pipe-pane -O -t ${PANE_HOST} "cat >> ${LOGDIR}/pane_host.log" - tmux select-pane -t ${PANE_HOST} -T "host" + pane_watch_contexts ${PANE_HOST} host host tmux pipe-pane -O -t ${PANE_PASST} "cat >> ${LOGDIR}/pane_passt.log" tmux select-pane -t ${PANE_PASST} -T "passt in pasta (namespace)" @@ -189,8 +190,7 @@ layout_two_guests() { tmux send-keys -t ${PANE_INFO} -N 100 C-m tmux select-pane -t ${PANE_INFO} -T "test log" - tmux pipe-pane -O -t ${PANE_HOST} "cat >> ${LOGDIR}/pane_host.log" - tmux select-pane -t ${PANE_HOST} -T "host" + pane_watch_contexts ${PANE_HOST} host host tmux pipe-pane -O -t ${PANE_PASST_1} "cat >> ${LOGDIR}/pane_passt_1.log" tmux select-pane -t ${PANE_PASST_1} -T "passt #1 in namespace #1" diff --git a/test/lib/setup b/test/lib/setup index 42f03c1..9b5e9ff 100755 --- a/test/lib/setup +++ b/test/lib/setup @@ -20,6 +20,8 @@ VMEM="$((${__mem_kib} / 1024 / 4))" # setup_build() - Set up pane layout for build tests setup_build() { + context_setup_host host + layout_host } @@ -30,6 +32,8 @@ setup_distro() { # setup_passt() - Start qemu and passt setup_passt() { + context_setup_host host + layout_passt # Ports: @@ -63,17 +67,12 @@ setup_passt() { " -netdev socket,fd=5,id=hostnet0" \ ' -pidfile passt_qemu.pid' pane_status GUEST - - # Set things up to reduce problems parsing host command output - pane_run HOST "PS1='$ '" - pane_wait HOST - # Non-bash shells will fail this, but also don't need it, so ignore errors - pane_run HOST "bind 'set enable-bracketed-paste off'" - pane_wait HOST } # setup_pasta() - Create a network and user namespace, connect pasta to it setup_pasta() { + context_setup_host host + layout_pasta pane_run NS 'echo $$' @@ -105,6 +104,8 @@ setup_pasta() { # setup_passt_in_ns() - Set up namespace (with pasta), run qemu and passt into it setup_passt_in_ns() { + context_setup_host host + layout_passt_in_pasta # Ports: @@ -182,17 +183,12 @@ setup_passt_in_ns() { " -netdev socket,fd=5,id=hostnet0" \ ' -pidfile passt_in_ns_qemu.pid' pane_status GUEST - - # Set things up to reduce problems parsing host command output - pane_run HOST "PS1='$ '" - pane_wait HOST - # Non-bash shells will fail this, but also don't need it, so ignore errors - pane_run HOST "bind 'set enable-bracketed-paste off'" - pane_wait HOST } # setup_two_guests() - Set up two namespace, run qemu and passt in both of them setup_two_guests() { + context_setup_host host + layout_two_guests # Ports: @@ -290,9 +286,21 @@ setup_two_guests() { pane_status GUEST_2 } +# teardown_context_watch() - Remove contexts and stop panes watching them +# $1: Pane number watching +# $@: Context names +teardown_context_watch() { + __pane="$1" + shift + for __c ; do + context_teardown "${__c}" + done + tmux send-keys -t ${__pane} "C-c" +} + # teardown_build() - Nothing to do, yet teardown_build() { - : + teardown_context_watch ${PANE_HOST} host } # teardown_distro() - Nothing to do, yet @@ -303,14 +311,19 @@ teardown_distro() { # teardown_passt() - Kill qemu, remove passt PID file teardown_passt() { kill $(cat passt_qemu.pid) + pane_wait GUEST rm passt.pid + + teardown_context_watch ${PANE_HOST} host } # teardown_passt() - Exit namespace, kill pasta process teardown_pasta() { tmux send-keys -t ${PANE_NS} "C-d" pane_wait NS + + teardown_context_watch ${PANE_HOST} host } # teardown_passt_in_ns() - Exit namespace, kill qemu and pasta, remove pid file @@ -326,6 +339,8 @@ teardown_passt_in_ns() { pane_wait PASST rm passt.pid + + teardown_context_watch ${PANE_HOST} host } # teardown_two_guests() - Exit namespaces, kill qemu processes, passt and pasta @@ -350,6 +365,8 @@ teardown_two_guests() { pane_wait GUEST_2 pane_wait PASST_1 pane_wait PASST_2 + + teardown_context_watch ${PANE_HOST} host } # teardown_demo_passt() - Exit namespace, kill qemu, passt and pasta -- 2.37.3

Stefano Brivio

9 Sep 9 Sep

5:18 p.m.

New subject: [PATCH v2 05/11] test: Issue host commands via context for most tests

Nit: On Thu, 8 Sep 2022 11:49:14 +1000 David Gibson wrote:

...

Convert most of the tests to use the new-style system for issuing commands for all host commands. We leave the distro tests for now: they use the same pane for both host and guest commands which we'll need some more things to deal with.

Signed-off-by: David Gibson --- test/lib/layout | 20 ++++++++++---------- test/lib/setup | 47 ++++++++++++++++++++++++++++++++--------------- 2 files changed, 42 insertions(+), 25 deletions(-)

diff --git a/test/lib/layout b/test/lib/layout index 2d6b197..09c213a 100644 --- a/test/lib/layout +++ b/test/lib/layout @@ -31,8 +31,12 @@ layout_host() { tmux send-keys -t ${PANE_INFO} -N 100 C-m tmux select-pane -t ${PANE_INFO} -T "test log"

- tmux pipe-pane -O -t ${PANE_HOST} "cat >> ${LOGDIR}/pane_host.log" - tmux select-pane -t ${PANE_HOST} -T "host" + if context_exists host; then + pane_watch_contexts 0 host host + else + tmux pipe-pane -O -t ${PANE_HOST} "cat >> ${LOGDIR}/pane_host.log" + tmux select-pane -t ${PANE_HOST} -T "host" + fi

info_layout "host commands only"

@@ -64,8 +68,7 @@ layout_pasta() { tmux send-keys -t ${PANE_INFO} -N 100 C-m tmux select-pane -t ${PANE_INFO} -T "test log"

- tmux pipe-pane -O -t ${PANE_HOST} "cat >> ${LOGDIR}/pane_host.log" - tmux select-pane -t ${PANE_HOST} -T "host" + pane_watch_contexts ${PANE_HOST} host host

tmux pipe-pane -O -t ${PANE_PASST} "cat >> ${LOGDIR}/pane_passt.log" tmux select-pane -t ${PANE_PASST} -T "pasta" @@ -100,8 +103,7 @@ layout_passt() { tmux send-keys -t ${PANE_INFO} -N 100 C-m tmux select-pane -t ${PANE_INFO} -T "test log"

- tmux pipe-pane -O -t ${PANE_HOST} "cat >> ${LOGDIR}/pane_host.log" - tmux select-pane -t ${PANE_HOST} -T "host" + pane_watch_contexts ${PANE_HOST} host host

tmux pipe-pane -O -t ${PANE_PASST} "cat >> ${LOGDIR}/pane_passt.log" tmux select-pane -t ${PANE_PASST} -T "passt" @@ -141,8 +143,7 @@ layout_passt_in_pasta() { tmux send-keys -t ${PANE_INFO} -N 100 C-m tmux select-pane -t ${PANE_INFO} -T "test log"

- tmux pipe-pane -O -t ${PANE_HOST} "cat >> ${LOGDIR}/pane_host.log" - tmux select-pane -t ${PANE_HOST} -T "host" + pane_watch_contexts ${PANE_HOST} host host

tmux pipe-pane -O -t ${PANE_PASST} "cat >> ${LOGDIR}/pane_passt.log" tmux select-pane -t ${PANE_PASST} -T "passt in pasta (namespace)" @@ -189,8 +190,7 @@ layout_two_guests() { tmux send-keys -t ${PANE_INFO} -N 100 C-m tmux select-pane -t ${PANE_INFO} -T "test log"

- tmux pipe-pane -O -t ${PANE_HOST} "cat >> ${LOGDIR}/pane_host.log" - tmux select-pane -t ${PANE_HOST} -T "host" + pane_watch_contexts ${PANE_HOST} host host

tmux pipe-pane -O -t ${PANE_PASST_1} "cat >> ${LOGDIR}/pane_passt_1.log" tmux select-pane -t ${PANE_PASST_1} -T "passt #1 in namespace #1" diff --git a/test/lib/setup b/test/lib/setup index 42f03c1..9b5e9ff 100755 --- a/test/lib/setup +++ b/test/lib/setup @@ -20,6 +20,8 @@ VMEM="$((${__mem_kib} / 1024 / 4))"

# setup_build() - Set up pane layout for build tests setup_build() { + context_setup_host host + layout_host }

@@ -30,6 +32,8 @@ setup_distro() {

# setup_passt() - Start qemu and passt setup_passt() { + context_setup_host host + layout_passt

# Ports: @@ -63,17 +67,12 @@ setup_passt() { " -netdev socket,fd=5,id=hostnet0" \ ' -pidfile passt_qemu.pid' pane_status GUEST - - # Set things up to reduce problems parsing host command output - pane_run HOST "PS1='$ '" - pane_wait HOST - # Non-bash shells will fail this, but also don't need it, so ignore errors - pane_run HOST "bind 'set enable-bracketed-paste off'" - pane_wait HOST }

# setup_pasta() - Create a network and user namespace, connect pasta to it setup_pasta() { + context_setup_host host + layout_pasta

pane_run NS 'echo $$' @@ -105,6 +104,8 @@ setup_pasta() {

# setup_passt_in_ns() - Set up namespace (with pasta), run qemu and passt into it setup_passt_in_ns() { + context_setup_host host + layout_passt_in_pasta

# Ports: @@ -182,17 +183,12 @@ setup_passt_in_ns() { " -netdev socket,fd=5,id=hostnet0" \ ' -pidfile passt_in_ns_qemu.pid' pane_status GUEST - - # Set things up to reduce problems parsing host command output - pane_run HOST "PS1='$ '" - pane_wait HOST - # Non-bash shells will fail this, but also don't need it, so ignore errors - pane_run HOST "bind 'set enable-bracketed-paste off'" - pane_wait HOST }

# setup_two_guests() - Set up two namespace, run qemu and passt in both of them setup_two_guests() { + context_setup_host host + layout_two_guests

# Ports: @@ -290,9 +286,21 @@ setup_two_guests() { pane_status GUEST_2 }

+# teardown_context_watch() - Remove contexts and stop panes watching them +# $1: Pane number watching +# $@: Context names +teardown_context_watch() { + __pane="$1" + shift + for __c ; do

Whitespace between ; and do is the most common coding style from POSIX references, but otherwise inconsistent with everything else in these files (and, say, with pane_watch_contexts() in 3/11) -- I'd drop it. -- Stefano

David Gibson

10 Sep 10 Sep

8:38 a.m.

New subject: [PATCH v2 05/11] test: Issue host commands via context for most tests

On Fri, Sep 09, 2022 at 05:18:48PM +0200, Stefano Brivio wrote:

...

Nit:

On Thu, 8 Sep 2022 11:49:14 +1000 David Gibson wrote:

...
Convert most of the tests to use the new-style system for issuing commands for all host commands. We leave the distro tests for now: they use the same pane for both host and guest commands which we'll need some more things to deal with.

Signed-off-by: David Gibson --- test/lib/layout | 20 ++++++++++---------- test/lib/setup | 47 ++++++++++++++++++++++++++++++++--------------- 2 files changed, 42 insertions(+), 25 deletions(-)

diff --git a/test/lib/layout b/test/lib/layout index 2d6b197..09c213a 100644 --- a/test/lib/layout +++ b/test/lib/layout @@ -31,8 +31,12 @@ layout_host() { tmux send-keys -t ${PANE_INFO} -N 100 C-m tmux select-pane -t ${PANE_INFO} -T "test log"

- tmux pipe-pane -O -t ${PANE_HOST} "cat >> ${LOGDIR}/pane_host.log" - tmux select-pane -t ${PANE_HOST} -T "host" + if context_exists host; then + pane_watch_contexts 0 host host + else + tmux pipe-pane -O -t ${PANE_HOST} "cat >> ${LOGDIR}/pane_host.log" + tmux select-pane -t ${PANE_HOST} -T "host" + fi

info_layout "host commands only"

@@ -64,8 +68,7 @@ layout_pasta() { tmux send-keys -t ${PANE_INFO} -N 100 C-m tmux select-pane -t ${PANE_INFO} -T "test log"

- tmux pipe-pane -O -t ${PANE_HOST} "cat >> ${LOGDIR}/pane_host.log" - tmux select-pane -t ${PANE_HOST} -T "host" + pane_watch_contexts ${PANE_HOST} host host

tmux pipe-pane -O -t ${PANE_PASST} "cat >> ${LOGDIR}/pane_passt.log" tmux select-pane -t ${PANE_PASST} -T "pasta" @@ -100,8 +103,7 @@ layout_passt() { tmux send-keys -t ${PANE_INFO} -N 100 C-m tmux select-pane -t ${PANE_INFO} -T "test log"

- tmux pipe-pane -O -t ${PANE_HOST} "cat >> ${LOGDIR}/pane_host.log" - tmux select-pane -t ${PANE_HOST} -T "host" + pane_watch_contexts ${PANE_HOST} host host

tmux pipe-pane -O -t ${PANE_PASST} "cat >> ${LOGDIR}/pane_passt.log" tmux select-pane -t ${PANE_PASST} -T "passt" @@ -141,8 +143,7 @@ layout_passt_in_pasta() { tmux send-keys -t ${PANE_INFO} -N 100 C-m tmux select-pane -t ${PANE_INFO} -T "test log"

- tmux pipe-pane -O -t ${PANE_HOST} "cat >> ${LOGDIR}/pane_host.log" - tmux select-pane -t ${PANE_HOST} -T "host" + pane_watch_contexts ${PANE_HOST} host host

tmux pipe-pane -O -t ${PANE_PASST} "cat >> ${LOGDIR}/pane_passt.log" tmux select-pane -t ${PANE_PASST} -T "passt in pasta (namespace)" @@ -189,8 +190,7 @@ layout_two_guests() { tmux send-keys -t ${PANE_INFO} -N 100 C-m tmux select-pane -t ${PANE_INFO} -T "test log"

- tmux pipe-pane -O -t ${PANE_HOST} "cat >> ${LOGDIR}/pane_host.log" - tmux select-pane -t ${PANE_HOST} -T "host" + pane_watch_contexts ${PANE_HOST} host host

tmux pipe-pane -O -t ${PANE_PASST_1} "cat >> ${LOGDIR}/pane_passt_1.log" tmux select-pane -t ${PANE_PASST_1} -T "passt #1 in namespace #1" diff --git a/test/lib/setup b/test/lib/setup index 42f03c1..9b5e9ff 100755 --- a/test/lib/setup +++ b/test/lib/setup @@ -20,6 +20,8 @@ VMEM="$((${__mem_kib} / 1024 / 4))"

# setup_build() - Set up pane layout for build tests setup_build() { + context_setup_host host + layout_host }

@@ -30,6 +32,8 @@ setup_distro() {

# setup_passt() - Start qemu and passt setup_passt() { + context_setup_host host + layout_passt

# Ports: @@ -63,17 +67,12 @@ setup_passt() { " -netdev socket,fd=5,id=hostnet0" \ ' -pidfile passt_qemu.pid' pane_status GUEST - - # Set things up to reduce problems parsing host command output - pane_run HOST "PS1='$ '" - pane_wait HOST - # Non-bash shells will fail this, but also don't need it, so ignore errors - pane_run HOST "bind 'set enable-bracketed-paste off'" - pane_wait HOST }

# setup_pasta() - Create a network and user namespace, connect pasta to it setup_pasta() { + context_setup_host host + layout_pasta

pane_run NS 'echo $$' @@ -105,6 +104,8 @@ setup_pasta() {

# setup_passt_in_ns() - Set up namespace (with pasta), run qemu and passt into it setup_passt_in_ns() { + context_setup_host host + layout_passt_in_pasta

# Ports: @@ -182,17 +183,12 @@ setup_passt_in_ns() { " -netdev socket,fd=5,id=hostnet0" \ ' -pidfile passt_in_ns_qemu.pid' pane_status GUEST - - # Set things up to reduce problems parsing host command output - pane_run HOST "PS1='$ '" - pane_wait HOST - # Non-bash shells will fail this, but also don't need it, so ignore errors - pane_run HOST "bind 'set enable-bracketed-paste off'" - pane_wait HOST }

# setup_two_guests() - Set up two namespace, run qemu and passt in both of them setup_two_guests() { + context_setup_host host + layout_two_guests

# Ports: @@ -290,9 +286,21 @@ setup_two_guests() { pane_status GUEST_2 }

+# teardown_context_watch() - Remove contexts and stop panes watching them +# $1: Pane number watching +# $@: Context names +teardown_context_watch() { + __pane="$1" + shift + for __c ; do

Whitespace between ; and do is the most common coding style from POSIX references, but otherwise inconsistent with everything else in these files (and, say, with pane_watch_contexts() in 3/11) -- I'd drop it.

Adjusted, thanks. -- David Gibson | I'll have my music baroque, and my code david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_ | _way_ _around_! http://www.ozlabs.org/~dgibson

David Gibson

8 Sep 8 Sep

3:49 a.m.

New subject: [PATCH v2 06/11] test: Use new-style contexts for passt pane in the pasta and passt tests

Convert the pasta and passt tests to use new-style context execution for the things that run in the "passt" frame. Don't touch the passt_in_ns or two_guests tests yet, because they run passt inside a namespace which introduces some additional complications we have yet to handle. Signed-off-by: David Gibson --- test/lib/layout | 8 ++------ test/lib/setup | 19 +++++++++---------- test/shutdown/passt | 4 +--- 3 files changed, 12 insertions(+), 19 deletions(-) diff --git a/test/lib/layout b/test/lib/layout index 09c213a..95bd035 100644 --- a/test/lib/layout +++ b/test/lib/layout @@ -69,9 +69,7 @@ layout_pasta() { tmux select-pane -t ${PANE_INFO} -T "test log" pane_watch_contexts ${PANE_HOST} host host - - tmux pipe-pane -O -t ${PANE_PASST} "cat >> ${LOGDIR}/pane_passt.log" - tmux select-pane -t ${PANE_PASST} -T "pasta" + pane_watch_contexts ${PANE_PASST} pasta passt info_layout "single pasta instance with namespace" @@ -104,9 +102,7 @@ layout_passt() { tmux select-pane -t ${PANE_INFO} -T "test log" pane_watch_contexts ${PANE_HOST} host host - - tmux pipe-pane -O -t ${PANE_PASST} "cat >> ${LOGDIR}/pane_passt.log" - tmux select-pane -t ${PANE_PASST} -T "passt" + pane_watch_contexts ${PANE_PASST} passt passt info_layout "single passt instance with guest" diff --git a/test/lib/setup b/test/lib/setup index 9b5e9ff..8430f4f 100755 --- a/test/lib/setup +++ b/test/lib/setup @@ -33,6 +33,7 @@ setup_distro() { # setup_passt() - Start qemu and passt setup_passt() { context_setup_host host + context_setup_host passt layout_passt @@ -48,11 +49,9 @@ setup_passt() { [ ${DEBUG} -eq 1 ] && __opts="${__opts} -d" [ ${TRACE} -eq 1 ] && __opts="${__opts} --trace" - pane_run PASST "make clean" - pane_status PASST - pane_run PASST "make valgrind" - pane_status PASST - pane_run PASST "valgrind --max-stackframe=$((4 * 1024 * 1024)) --trace-children=yes --vgdb=no --error-exitcode=1 --suppressions=test/valgrind.supp ./passt ${__opts} -f -t 10001 -u 10001 -P passt.pid" + context_run passt "make clean" + context_run passt "make valgrind" + context_run_bg passt "valgrind --max-stackframe=$((4 * 1024 * 1024)) --trace-children=yes --vgdb=no --error-exitcode=1 --suppressions=test/valgrind.supp ./passt ${__opts} -f -t 10001 -u 10001 -P passt.pid" sleep 5 pane_run GUEST './qrap 5 qemu-system-$(uname -m)' \ @@ -72,6 +71,7 @@ setup_passt() { # setup_pasta() - Create a network and user namespace, connect pasta to it setup_pasta() { context_setup_host host + context_setup_host passt layout_pasta @@ -82,9 +82,7 @@ setup_pasta() { pane_run NS "unshare -rUnpf /bin/sh" pane_status NS - pane_run PASST "pstree -p ${__tty_pid} | sed -n 's/.*($[0-9].*$)$/\1/p'" - pane_wait PASST - __target_pid="$(pane_parse PASST)" + __target_pid=$(pstree -p ${__tty_pid} | sed -n 's/.*($[0-9].*$)$/\1/p') # Ports: # @@ -98,7 +96,7 @@ setup_pasta() { [ ${DEBUG} -eq 1 ] && __opts="${__opts} -d" [ ${TRACE} -eq 1 ] && __opts="${__opts} --trace" - pane_run PASST "./pasta ${__opts} -f -t 10002 -T 10003 -u 10002 -U 10003 -P passt.pid ${__target_pid}" + context_run_bg passt "./pasta ${__opts} -f -t 10002 -T 10003 -u 10002 -U 10003 -P passt.pid ${__target_pid}" sleep 1 } @@ -311,11 +309,11 @@ teardown_distro() { # teardown_passt() - Kill qemu, remove passt PID file teardown_passt() { kill $(cat passt_qemu.pid) - pane_wait GUEST rm passt.pid teardown_context_watch ${PANE_HOST} host + teardown_context_watch ${PANE_PASST} passt } # teardown_passt() - Exit namespace, kill pasta process @@ -324,6 +322,7 @@ teardown_pasta() { pane_wait NS teardown_context_watch ${PANE_HOST} host + teardown_context_watch ${PANE_PASST} passt } # teardown_passt_in_ns() - Exit namespace, kill qemu and pasta, remove pid file diff --git a/test/shutdown/passt b/test/shutdown/passt index 4a7b702..ac8ff08 100644 --- a/test/shutdown/passt +++ b/test/shutdown/passt @@ -17,6 +17,4 @@ test shutdown: exit code hout PASST_PID cat passt.pid host kill __PASST_PID__ sleep 1 - -pout EXIT echo $? -check [ "__EXIT__" = "0" ] +passtw -- 2.37.3

David Gibson

3:49 a.m.

New subject: [PATCH v2 07/11] test: Add nsholder utility

In our test scripts we need to do some ugly parsing of /proc and/or pstree output in order to get the PIDs of processes running in namespaces so that we can connect to those namespaces with nsenter or pasta. This is actually a pretty tricky problem with standard tools. To determine the PID from the outside of the namespace we need to know how the process of interest is related to the unshare or pasta process (child? one of several children? grandchild?) as well as then parsing /proc or ps output. This is slightly awkward now, and will get worse with future changes I'd like to make to have processes are dispatched. The obvious solution would be to have the process of interest (which we control) report its own PID, but that doesn't work easily, because it is in a PID namepace and sees only its local PID not the global PID we need to address it from outside. To handle this, add a small custom tool, "nsholder". This takes a path and a mode parameter. In "hold" mode it will create a unix domain socket bound to the path and listening. In "pid" mode it will get the "hold"ing process's pid via the unix socket using SO_PEERCRED, which translates between PID namespaces. In "stop" mode it will send a message to the socket causing the "hold"ing process to clean up and exit. Signed-off-by: David Gibson --- test/.gitignore | 1 + test/Makefile | 8 +++- test/nsholder.c | 117 ++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 125 insertions(+), 1 deletion(-) create mode 100644 test/nsholder.c diff --git a/test/.gitignore b/test/.gitignore index 129ddc0..d477a42 100644 --- a/test/.gitignore +++ b/test/.gitignore @@ -10,3 +10,4 @@ QEMU_EFI.fd *.start *.stop *.js +nsholder diff --git a/test/Makefile b/test/Makefile index f11c4b5..e0dc7ac 100644 --- a/test/Makefile +++ b/test/Makefile @@ -56,10 +56,13 @@ DOWNLOAD_ASSETS = mbuto \ $(DEBIAN_IMGS) $(FEDORA_IMGS) $(OPENSUSE_IMGS) $(UBUNTU_IMGS) LOCAL_ASSETS = mbuto.img QEMU_EFI.fd \ $(DEBIAN_IMGS:%=prepared-%) $(FEDORA_IMGS:%=prepared-%) \ - $(UBUNTU_NEW_IMGS:%=prepared-%) + $(UBUNTU_NEW_IMGS:%=prepared-%) \ + nsholder ASSETS = $(DOWNLOAD_ASSETS) $(LOCAL_ASSETS) +CFLAGS = -Wall -Werror + assets: $(ASSETS) mbuto: @@ -68,6 +71,9 @@ mbuto: mbuto.img: passt.mbuto mbuto ./mbuto/mbuto -p ./$< -c lz4 -f $@ +nsholder: nsholder.c + $(CC) $(CFLAGS) -o $@ $^ + QEMU_EFI.fd: ./find-arm64-firmware.sh $@ diff --git a/test/nsholder.c b/test/nsholder.c new file mode 100644 index 0000000..bfe3611 --- /dev/null +++ b/test/nsholder.c @@ -0,0 +1,117 @@ +#define _GNU_SOURCE + +#include +#include +#include +#include +#include +#include +#include + +#define die(...) \ + do { \ + fprintf(stderr, __VA_ARGS__); \ + exit(1); \ + } while (0) + +static void usage(void) +{ + die("Usage: holder <socket path> hold|pid\n"); +} + +static void hold(int fd, const struct sockaddr_un *addr) +{ + int rc; + + rc = bind(fd, (struct sockaddr *)addr, sizeof(*addr)); + if (rc < 0) + die("bind(): %s\n", strerror(errno)); + + rc = listen(fd, 0); + if (rc < 0) + die("listen(): %s\n", strerror(errno)); + + printf("nsholder: local PID=%d local UID=%d local GID=%d\n", + getpid(), getuid(), getgid()); + do { + int afd = accept(fd, NULL, NULL); + char buf; + + if (afd < 0) + die("accept(): %s\n", strerror(errno)); + + rc = read(afd, &buf, sizeof(buf)); + if (rc < 0) + die("read(): %s\n", strerror(errno)); + } while (rc == 0); + + unlink(addr->sun_path); +} + +static void pid(int fd, const struct sockaddr_un *addr) +{ + int rc; + struct ucred peercred; + socklen_t optlen = sizeof(peercred); + + do { + rc = connect(fd, (struct sockaddr *)addr, sizeof(*addr)); + if (rc < 0 && errno != ENOENT && errno != ECONNREFUSED) + die("connect(): %s\n", strerror(errno)); + } while (rc < 0); + + rc = getsockopt(fd, SOL_SOCKET, SO_PEERCRED, + &peercred, &optlen); + if (rc < 0) + die("getsockopet(SO_PEERCRED): %s\n", strerror(errno)); + + close(fd); + + printf("%d\n", peercred.pid); +} + +static void stop(int fd, const struct sockaddr_un *addr) +{ + int rc; + char buf = 'Q'; + + rc = connect(fd, (struct sockaddr *)addr, sizeof(*addr)); + if (rc < 0) + die("connect(): %s\n", strerror(errno)); + + rc = write(fd, &buf, sizeof(buf)); + if (rc < 0) + die("write(): %s\n", strerror(errno)); + + close(fd); +} + +int main(int argc, char *argv[]) +{ + int fd; + const char *sockname; + struct sockaddr_un sockaddr = { + .sun_family = AF_UNIX, + }; + + if (argc != 3) + usage(); + + sockname = argv[1]; + strncpy(sockaddr.sun_path, sockname, UNIX_PATH_MAX); + + fd = socket(AF_UNIX, SOCK_STREAM, PF_UNIX); + if (fd < 0) + die("socket(): %s\n", strerror(errno)); + + if (strcmp(argv[2], "hold") == 0) + hold(fd, &sockaddr); + else if (strcmp(argv[2], "pid") == 0) + pid(fd, &sockaddr); + else if (strcmp(argv[2], "stop") == 0) + stop(fd, &sockaddr); + else + usage(); + + exit(0); +} -- 2.37.3

Stefano Brivio

9 Sep 9 Sep

5:18 p.m.

New subject: [PATCH v2 07/11] test: Add nsholder utility

Nit: On Thu, 8 Sep 2022 11:49:16 +1000 David Gibson wrote:

...

[...]

diff --git a/test/nsholder.c b/test/nsholder.c new file mode 100644 index 0000000..bfe3611 --- /dev/null +++ b/test/nsholder.c @@ -0,0 +1,117 @@ +#define _GNU_SOURCE

It would be nice to have a licence and copyright notice here. From my perspective it's not necessarily needed (it would default to AGPLv3 and you as copyright holder), but might cause some trouble to packagers. -- Stefano

David Gibson

10 Sep 10 Sep

8:45 a.m.

New subject: [PATCH v2 07/11] test: Add nsholder utility

On Fri, Sep 09, 2022 at 05:18:58PM +0200, Stefano Brivio wrote: 11;rgb:ffff/ffff/ffff> Nit:

...

On Thu, 8 Sep 2022 11:49:16 +1000 David Gibson wrote:

...
[...]

diff --git a/test/nsholder.c b/test/nsholder.c new file mode 100644 index 0000000..bfe3611 --- /dev/null +++ b/test/nsholder.c @@ -0,0 +1,117 @@ +#define _GNU_SOURCE

It would be nice to have a licence and copyright notice here. From my perspective it's not necessarily needed (it would default to AGPLv3 and you as copyright holder), but might cause some trouble to packagers.

Good point. I added those notices and an informational banner. -- David Gibson | I'll have my music baroque, and my code david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_ | _way_ _around_! http://www.ozlabs.org/~dgibson

David Gibson

8 Sep 8 Sep

3:49 a.m.

New subject: [PATCH v2 08/11] test: Extend context system to run commands in namespace for pasta tests

Extend the context system to allow commands to be run in a namespace created with unshare, and use it for the namespace used in the pasta tests. Signed-off-by: David Gibson --- test/lib/context | 21 ++++++++++++++++++++- test/lib/layout | 4 +--- test/lib/setup | 17 ++++++++--------- 3 files changed, 29 insertions(+), 13 deletions(-) diff --git a/test/lib/context b/test/lib/context index babf59a..0d92d8f 100644 --- a/test/lib/context +++ b/test/lib/context @@ -13,13 +13,32 @@ # Copyright Red Hat # Author: David Gibson +# context_setup_common() - Create outline of a new context +# $1: Context name +context_setup_common() { + __name="$1" + __prefix="${LOGDIR}/context_${__name}" + echo -n "${__name}$ " > "${__prefix}.log" +} + # context_setup_host() - Create a new context for running commands on the host # $1: Context name context_setup_host() { __name="$1" __prefix="${LOGDIR}/context_${__name}" + context_setup_common "${__name}" echo sh -c > "${__prefix}.enter" - echo -n "${__name}$ " > "${__prefix}.log" +} + +# context_setup_nsenter() - Create a new context for running commands in a namespace +# $1: Context name +# $2: Namespace PID +context_setup_nsenter() { + __name="$1" + shift + __prefix="${LOGDIR}/context_${__name}" + context_setup_common "${__name}" + echo "nsenter $@ sh -c" > "${__prefix}.enter" } # context_teardown() - Remove a context (leave log files intact) diff --git a/test/lib/layout b/test/lib/layout index 95bd035..1401955 100644 --- a/test/lib/layout +++ b/test/lib/layout @@ -61,15 +61,13 @@ layout_pasta() { get_info_cols - tmux pipe-pane -O -t ${PANE_NS} "cat >> ${LOGDIR}/pane_ns.log" - tmux select-pane -t ${PANE_NS} -T "namespace" - tmux send-keys -l -t ${PANE_INFO} 'while cat /tmp/.passt_test_log_pipe; do :; done' tmux send-keys -t ${PANE_INFO} -N 100 C-m tmux select-pane -t ${PANE_INFO} -T "test log" pane_watch_contexts ${PANE_HOST} host host pane_watch_contexts ${PANE_PASST} pasta passt + pane_watch_contexts ${PANE_NS} "namespace" unshare ns info_layout "single pasta instance with namespace" diff --git a/test/lib/setup b/test/lib/setup index 8430f4f..ac36ac3 100755 --- a/test/lib/setup +++ b/test/lib/setup @@ -17,6 +17,7 @@ INITRAMFS="${BASEPATH}/mbuto.img" VCPUS="$( [ $(nproc) -ge 8 ] && echo 6 || echo $(( $(nproc) / 2 + 1 )) )" __mem_kib="$(sed -n 's/MemTotal:[ ]*$[0-9]*$ kB/\1/p' /proc/meminfo)" VMEM="$((${__mem_kib} / 1024 / 4))" +NSHOLDER="${BASEPATH}/nsholder" # setup_build() - Set up pane layout for build tests setup_build() { @@ -72,17 +73,14 @@ setup_passt() { setup_pasta() { context_setup_host host context_setup_host passt + context_setup_host unshare layout_pasta - pane_run NS 'echo $$' - pane_wait NS - __tty_pid="$(pane_parse NS)" - - pane_run NS "unshare -rUnpf /bin/sh" - pane_status NS + context_run_bg unshare "unshare -rUnpf ${NSHOLDER} ns.hold hold" + __target_pid=$(${NSHOLDER} ns.hold pid) - __target_pid=$(pstree -p ${__tty_pid} | sed -n 's/.*($[0-9].*$)$/\1/p') + context_setup_nsenter ns -U -n -p --preserve-credentials -t ${__target_pid} # Ports: # @@ -318,11 +316,12 @@ teardown_passt() { # teardown_passt() - Exit namespace, kill pasta process teardown_pasta() { - tmux send-keys -t ${PANE_NS} "C-d" - pane_wait NS + ${NSHOLDER} ns.hold stop + context_wait unshare teardown_context_watch ${PANE_HOST} host teardown_context_watch ${PANE_PASST} passt + teardown_context_watch ${PANE_NS} unshare ns } # teardown_passt_in_ns() - Exit namespace, kill qemu and pasta, remove pid file -- 2.37.3

David Gibson

3:49 a.m.

New subject: [PATCH v2 09/11] test: Use context system for guest commands

Extends the context system in the test scripts to allow executing commands within a guest. Do this without requiring an existing network in the guest by using socat to run ssh via a vsock connection. We do need some additional "sleep"s in the tests, because the new faster dispatch means that sometimes we attempt to connect before socat has managed to listen. For now, only use this for the plain "passt" tests. The "passt_in_ns" and other tests have additional complications we still need to deal with. Signed-off-by: David Gibson --- test/.gitignore | 2 ++ test/Makefile | 7 +++++-- test/lib/context | 28 +++++++++++++++++++++++++++- test/lib/layout | 4 +--- test/lib/setup | 13 +++++++++---- test/lib/term | 9 ++++++--- test/passt.mbuto | 32 +++++++++++++++++++++++++++++--- test/tcp/passt | 2 ++ test/tcp/passt_in_ns | 8 ++++++++ test/udp/passt | 1 + 10 files changed, 90 insertions(+), 16 deletions(-) diff --git a/test/.gitignore b/test/.gitignore index d477a42..0f91c7d 100644 --- a/test/.gitignore +++ b/test/.gitignore @@ -11,3 +11,5 @@ QEMU_EFI.fd *.stop *.js nsholder +guest-key +guest-key.pub diff --git a/test/Makefile b/test/Makefile index e0dc7ac..cc1a818 100644 --- a/test/Makefile +++ b/test/Makefile @@ -57,7 +57,7 @@ DOWNLOAD_ASSETS = mbuto \ LOCAL_ASSETS = mbuto.img QEMU_EFI.fd \ $(DEBIAN_IMGS:%=prepared-%) $(FEDORA_IMGS:%=prepared-%) \ $(UBUNTU_NEW_IMGS:%=prepared-%) \ - nsholder + nsholder guest-key guest-key.pub ASSETS = $(DOWNLOAD_ASSETS) $(LOCAL_ASSETS) @@ -68,7 +68,10 @@ assets: $(ASSETS) mbuto: git clone git://mbuto.sh/mbuto -mbuto.img: passt.mbuto mbuto +guest-key guest-key.pub: + ssh-keygen -f guest-key -N '' + +mbuto.img: passt.mbuto mbuto guest-key.pub ./mbuto/mbuto -p ./$< -c lz4 -f $@ nsholder: nsholder.c diff --git a/test/lib/context b/test/lib/context index 0d92d8f..ccb0004 100644 --- a/test/lib/context +++ b/test/lib/context @@ -41,12 +41,38 @@ context_setup_nsenter() { echo "nsenter $@ sh -c" > "${__prefix}.enter" } +# context_setup_guest() - Create a new context for running commands in a guest +# $1: Context name +# $2: CID to use for vsock +context_setup_guest() { + __name="$1" + __cid="$2" + __prefix="${LOGDIR}/context_${__name}" + context_setup_common "${__name}" + + cat > "${__prefix}.ssh" < "${__prefix}.enter" + + # Wait for the guest to be booted and accepting connections + while ! ssh -F "${__prefix}.ssh" "${__name}" :; do + sleep 0.1 + done +} + # context_teardown() - Remove a context (leave log files intact) # $1: Context name context_teardown() { __name="$1" __prefix="${LOGDIR}/context_${__name}" - rm -f "${__prefix}.enter" + rm -f "${__prefix}.enter" "${__prefix}.ssh" "${__prefix}.hosts" } # context_exists() - Test if a context currently exists diff --git a/test/lib/layout b/test/lib/layout index 1401955..985d31b 100644 --- a/test/lib/layout +++ b/test/lib/layout @@ -92,15 +92,13 @@ layout_passt() { get_info_cols - tmux pipe-pane -O -t ${PANE_GUEST} "cat >> ${LOGDIR}/pane_guest.log" - tmux select-pane -t ${PANE_GUEST} -T "guest" - tmux send-keys -l -t ${PANE_INFO} 'while cat /tmp/.passt_test_log_pipe; do :; done' tmux send-keys -t ${PANE_INFO} -N 100 C-m tmux select-pane -t ${PANE_INFO} -T "test log" pane_watch_contexts ${PANE_HOST} host host pane_watch_contexts ${PANE_PASST} passt passt + pane_watch_contexts ${PANE_GUEST} guest qemu guest info_layout "single passt instance with guest" diff --git a/test/lib/setup b/test/lib/setup index ac36ac3..4d8c81f 100755 --- a/test/lib/setup +++ b/test/lib/setup @@ -35,6 +35,7 @@ setup_distro() { setup_passt() { context_setup_host host context_setup_host passt + context_setup_host qemu layout_passt @@ -55,7 +56,8 @@ setup_passt() { context_run_bg passt "valgrind --max-stackframe=$((4 * 1024 * 1024)) --trace-children=yes --vgdb=no --error-exitcode=1 --suppressions=test/valgrind.supp ./passt ${__opts} -f -t 10001 -u 10001 -P passt.pid" sleep 5 - pane_run GUEST './qrap 5 qemu-system-$(uname -m)' \ + GUEST_CID=94557 + context_run_bg qemu './qrap 5 qemu-system-$(uname -m)' \ ' -machine accel=kvm' \ ' -m '${VMEM}' -cpu host -smp '${VCPUS} \ ' -kernel ' "/boot/vmlinuz-$(uname -r)" \ @@ -65,8 +67,10 @@ setup_passt() { 'virtio-net.napi_tx=1"' \ " -device virtio-net-pci,netdev=hostnet0,x-txburst=16384" \ " -netdev socket,fd=5,id=hostnet0" \ - ' -pidfile passt_qemu.pid' - pane_status GUEST + " -pidfile passt_qemu.pid" \ + " -device vhost-vsock-pci,guest-cid=$GUEST_CID" + + context_setup_guest guest $GUEST_CID } # setup_pasta() - Create a network and user namespace, connect pasta to it @@ -307,11 +311,12 @@ teardown_distro() { # teardown_passt() - Kill qemu, remove passt PID file teardown_passt() { kill $(cat passt_qemu.pid) - pane_wait GUEST + rm passt.pid teardown_context_watch ${PANE_HOST} host teardown_context_watch ${PANE_PASST} passt + teardown_context_watch ${PANE_GUEST} qemu guest } # teardown_passt() - Exit namespace, kill pasta process diff --git a/test/lib/term b/test/lib/term index a06c80b..ae99010 100755 --- a/test/lib/term +++ b/test/lib/term @@ -266,7 +266,8 @@ pane_or_context_run() { __name="${1}" shift if context_exists "${__name}"; then - context_run "${__name}" "$@" >/dev/null 2>&1 + # Redirect stdin to stop ssh from eating the test instructions file we have on stdin + context_run "${__name}" "$@" >/dev/null 2>&1 < /dev/null else __uc="$(echo "${__name}" | tr [a-z] [A-Z])" pane_run "${__uc}" "$@" @@ -281,7 +282,8 @@ pane_or_context_run_bg() { __name="${1}" shift if context_exists "${__name}"; then - context_run_bg "${__name}" "$@" >/dev/null 2>&1 + # Redirect stdin to stop ssh from eating the test instructions file we have on stdin + context_run_bg "${__name}" "$@" >/dev/null 2>&1 < /dev/null else __uc="$(echo "${__name}" | tr [a-z] [A-Z])" pane_run "${__uc}" "$@" @@ -295,7 +297,8 @@ pane_or_context_output() { __name="${1}" shift if context_exists "${__name}"; then - __output=$(context_run "${__name}" "$@" 2>/dev/null) + # Redirect stdin to stop ssh from eating the test instructions file we have on stdin + __output=$(context_run "${__name}" "$@" 2>/dev/null /sbin/dhclient-script << EOF @@ -46,7 +46,33 @@ exit 0 EOF chmod 755 /sbin/dhclient-script ln -s /sbin /usr/sbin + ln -s /bin /usr/bin + ln -s /run /var/run :> /etc/fstab + + # sshd(dropbear) via vsock + cat > /etc/passwd << EOF +root:x:0:0:root:/root:/bin/sh +sshd:x:100:100:Privilege-separated SSH:/var/empty/sshd:/sbin/nologin +EOF + cat > /etc/shadow << EOF +root:::0:99999:7::: +EOF + chmod 000 /etc/shadow + + :> /etc/ssh/sshd_config + ssh-keygen -A + chmod 700 /root/.ssh + chmod 700 /run/sshd + # Alternative location for the priv separation dir + ln -s /run/sshd /usr/share/empty.sshd + + cat > /root/.ssh/authorized_keys < /var/log/vsock-ssh.log & sh +m ' diff --git a/test/tcp/passt b/test/tcp/passt index 6e65137..265f270 100644 --- a/test/tcp/passt +++ b/test/tcp/passt @@ -17,6 +17,7 @@ htools dd socat ip jq md5sum cut test TCP/IPv4: host to guest: big transfer temp TEMP_BIG guestb socat -u TCP4-LISTEN:10001,reuseaddr OPEN:test_big.bin,create,trunc +sleep 1 host dd if=/dev/urandom bs=1M count=10 > __TEMP_BIG__ host socat -u OPEN:__TEMP_BIG__ TCP4:127.0.0.1:10001 guestw @@ -35,6 +36,7 @@ check [ "__GUEST_MD5_BIG__" = "__HOST_MD5_BIG__" ] test TCP/IPv4: host to guest: small transfer temp TEMP_SMALL guestb socat -u TCP4-LISTEN:10001,reuseaddr OPEN:test_small.bin,create,trunc +sleep 1 host dd if=/dev/urandom bs=2k count=1 > __TEMP_SMALL__ host socat -u OPEN:__TEMP_SMALL__ TCP4:127.0.0.1:10001 guestw diff --git a/test/tcp/passt_in_ns b/test/tcp/passt_in_ns index 976e4e9..cb01781 100644 --- a/test/tcp/passt_in_ns +++ b/test/tcp/passt_in_ns @@ -18,6 +18,7 @@ nstools socat ip jq md5sum cut test TCP/IPv4: host to guest: big transfer temp TEMP_BIG guestb socat -u TCP4-LISTEN:10001 OPEN:test_big.bin,create,trunc +sleep 1 host dd if=/dev/urandom bs=1M count=10 of=__TEMP_BIG__ host socat -u OPEN:__TEMP_BIG__ TCP4:127.0.0.1:10001 guestw @@ -82,6 +83,7 @@ check [ "__GUEST_MD5_BIG__" = "__MD5_BIG__" ] test TCP/IPv4: host to guest: small transfer temp TEMP_SMALL guestb socat -u TCP4-LISTEN:10001 OPEN:test_small.bin,create,trunc +sleep 1 host dd if=/dev/urandom bs=2k count=100 of=__TEMP_SMALL__ host socat -u OPEN:__TEMP_SMALL__ TCP4:127.0.0.1:10001 guestw @@ -129,6 +131,7 @@ check [ "__HOST_MD5_SMALL__" = "__MD5_SMALL__" ] test TCP/IPv4: ns to guest (using loopback address): small transfer guestb socat -u TCP4-LISTEN:10001 OPEN:test_small.bin,create,trunc +sleep 1 ns socat -u OPEN:__TEMP_NS_SMALL__ TCP4:127.0.0.1:10001 guestw gout GUEST_MD5_SMALL md5sum test_small.bin | cut -d' ' -f1 @@ -136,6 +139,7 @@ check [ "__GUEST_MD5_SMALL__" = "__MD5_SMALL__" ] test TCP/IPv4: ns to guest (using namespace address): small transfer guestb socat -u TCP4-LISTEN:10001 OPEN:test_small.bin,create,trunc +sleep 1 ns socat -u OPEN:__TEMP_NS_SMALL__ TCP4:__ADDR__:10001 guestw gout GUEST_MD5_SMALL md5sum test_small.bin | cut -d' ' -f1 @@ -143,6 +147,7 @@ check [ "__GUEST_MD5_SMALL__" = "__MD5_SMALL__" ] test TCP/IPv6: host to guest: big transfer guestb socat -u TCP6-LISTEN:10001 OPEN:test_big.bin,create,trunc +sleep 1 host socat -u OPEN:__TEMP_BIG__ TCP6:[::1]:10001 guestw gout GUEST_MD5_BIG md5sum test_big.bin | cut -d' ' -f1 @@ -188,6 +193,7 @@ check [ "__HOST_MD5_BIG__" = "__MD5_BIG__" ] test TCP/IPv6: ns to guest (using loopback address): big transfer guestb socat -u TCP6-LISTEN:10001 OPEN:test_big.bin,create,trunc +sleep 1 ns socat -u OPEN:__TEMP_NS_BIG__ TCP6:[::1]:10001 guestw gout GUEST_MD5_BIG md5sum test_big.bin | cut -d' ' -f1 @@ -203,6 +209,7 @@ check [ "__GUEST_MD5_BIG__" = "__MD5_BIG__" ] test TCP/IPv6: host to guest: small transfer guestb socat -u TCP6-LISTEN:10001 OPEN:test_small.bin,create,trunc +sleep 1 host socat -u OPEN:__TEMP_SMALL__ TCP6:[::1]:10001 guestw gout GUEST_MD5_SMALL md5sum test_small.bin | cut -d' ' -f1 @@ -248,6 +255,7 @@ check [ "__HOST_MD5_SMALL__" = "__MD5_SMALL__" ] test TCP/IPv6: ns to guest (using loopback address): small transfer guestb socat -u TCP6-LISTEN:10001 OPEN:test_small.bin,create,trunc +sleep 1 ns socat -u OPEN:__TEMP_NS_SMALL__ TCP6:[::1]:10001 guestw gout GUEST_MD5_SMALL md5sum test_small.bin | cut -d' ' -f1 diff --git a/test/udp/passt b/test/udp/passt index 7c58648..a14e6d2 100644 --- a/test/udp/passt +++ b/test/udp/passt @@ -18,6 +18,7 @@ test UDP/IPv4: host to guest temp TEMP temp SC_PID guestb (socat -u UDP4-LISTEN:10001 STDOUT & echo $! > __SC_PID__) | tee test.bin | (grep -qm1 "END_OF_TEST" && kill $(cat __SC_PID__)) +sleep 1 host dd if=/dev/urandom bs=1k count=5 > __TEMP__ && printf "\nEND_OF_TEST\n" >> __TEMP__ host socat -u OPEN:__TEMP__ UDP4:127.0.0.1:10001 guestw -- 2.37.3

David Gibson

3:49 a.m.

New subject: [PATCH v2 10/11] test: Use context system for two_guests tests

Now that we have all the pieces we need for issuing commands both into namespaces and into guests, we can use those to convert the two_guests to using only the new style context command issue. Signed-off-by: David Gibson --- test/lib/layout | 15 ++----- test/lib/setup | 115 ++++++++++++++++++++++-------------------------- 2 files changed, 57 insertions(+), 73 deletions(-) diff --git a/test/lib/layout b/test/lib/layout index 985d31b..b9d30e9 100644 --- a/test/lib/layout +++ b/test/lib/layout @@ -172,23 +172,16 @@ layout_two_guests() { get_info_cols - tmux pipe-pane -O -t ${PANE_GUEST_1} "cat >> ${LOGDIR}/pane_guest_1.log" - tmux select-pane -t ${PANE_GUEST_1} -T "guest #1 in namespace #1" - - tmux pipe-pane -O -t ${PANE_GUEST_2} "cat >> ${LOGDIR}/pane_guest_2.log" - tmux select-pane -t ${PANE_GUEST_2} -T "guest #2 in namespace #2" + pane_watch_contexts ${PANE_GUEST_1} "guest #1 in namespace #1" qemu_1 guest_1 + pane_watch_contexts ${PANE_GUEST_2} "guest #2 in namespace #2" qemu_2 guest_2 tmux send-keys -l -t ${PANE_INFO} 'while cat /tmp/.passt_test_log_pipe; do :; done' tmux send-keys -t ${PANE_INFO} -N 100 C-m tmux select-pane -t ${PANE_INFO} -T "test log" pane_watch_contexts ${PANE_HOST} host host - - tmux pipe-pane -O -t ${PANE_PASST_1} "cat >> ${LOGDIR}/pane_passt_1.log" - tmux select-pane -t ${PANE_PASST_1} -T "passt #1 in namespace #1" - - tmux pipe-pane -O -t ${PANE_PASST_2} "cat >> ${LOGDIR}/pane_passt_2.log" - tmux select-pane -t ${PANE_PASST_2} -T "passt #2 in namespace #2" + pane_watch_contexts ${PANE_PASST_1} "passt #1 in namespace #1" pasta_1 passt_1 + pane_watch_contexts ${PANE_PASST_2} "passt #2 in namespace #2" pasta_2 passt_2 info_layout "two guests, two passt instances, in namespaces" diff --git a/test/lib/setup b/test/lib/setup index 4d8c81f..6eccd8c 100755 --- a/test/lib/setup +++ b/test/lib/setup @@ -188,6 +188,8 @@ setup_passt_in_ns() { # setup_two_guests() - Set up two namespace, run qemu and passt in both of them setup_two_guests() { context_setup_host host + context_setup_host pasta_1 + context_setup_host pasta_2 layout_two_guests @@ -201,66 +203,49 @@ setup_two_guests() { # 10004 | as server | to init | to guest | to ns #2 # 10005 | | | as server | to ns #2 - __pid1_file="$(mktemp)" - __pid2_file="$(mktemp)" - __opts= [ ${PCAP} -eq 1 ] && __opts="${__opts} -p /tmp/pasta_1.pcap" [ ${DEBUG} -eq 1 ] && __opts="${__opts} -d" [ ${TRACE} -eq 1 ] && __opts="${__opts} --trace" - pane_run PASST_1 "./pasta ${__opts} -P ${__pid1_file} -t 10001,10002 -T 10003,10004 -u 10001,10002 -U 10003,10004" + context_run_bg pasta_1 "./pasta ${__opts} -P pasta_1.pid -t 10001,10002 -T 10003,10004 -u 10001,10002 -U 10003,10004 ${NSHOLDER} ns1.hold hold" + __ns1_pid=$(${NSHOLDER} ns1.hold pid) + context_setup_nsenter passt_1 -U -n -p --preserve-credentials -t ${__ns1_pid} __opts= [ ${PCAP} -eq 1 ] && __opts="${__opts} -p /tmp/pasta_2.pcap" [ ${DEBUG} -eq 1 ] && __opts="${__opts} -d" [ ${TRACE} -eq 1 ] && __opts="${__opts} --trace" - pane_run PASST_2 "./pasta ${__opts} -P ${__pid2_file} -t 10004,10005 -T 10003,10001 -u 10004,10005 -U 10003,10001" + context_run_bg pasta_2 "./pasta ${__opts} -P pasta_2.pid -t 10004,10005 -T 10003,10001 -u 10004,10005 -U 10003,10001 ${NSHOLDER} ns2.hold hold" + __ns2_pid=$(${NSHOLDER} ns2.hold pid) + context_setup_nsenter passt_2 -U -n -p --preserve-credentials -t ${__ns2_pid} - sleep 1 - pane_run PASST_1 '' - pane_run PASST_2 '' - - pane_status PASST_1 - pane_status PASST_2 - __pasta1_pid="$(cat "${__pid1_file}")" - __ns1_pid="$(cat /proc/${__pasta1_pid}/task/${__pasta1_pid}/children | cut -f1 -d' ')" - rm "${__pid1_file}" - __pasta2_pid="$(cat "${__pid2_file}")" - __ns2_pid="$(cat /proc/${__pasta2_pid}/task/${__pasta2_pid}/children | cut -f1 -d' ')" - rm "${__pid2_file}" - - pane_run GUEST_1 "nsenter -t ${__ns1_pid} -U -n --preserve-credentials" - pane_run GUEST_2 "nsenter -t ${__ns2_pid} -U -n --preserve-credentials" - - pane_run PASST_1 "ip -j link show | jq -rM '.[] | select(.link_type == \"ether\").ifname'" - pane_wait PASST_1 - __ifname="$(pane_parse PASST_1)" - - pane_run GUEST_1 "/sbin/dhclient -4 --no-pid ${__ifname}" - pane_run GUEST_2 "/sbin/dhclient -4 --no-pid ${__ifname}" - pane_status GUEST_1 - pane_status GUEST_2 - sleep 2 - pane_run GUEST_1 "/sbin/dhclient -6 --no-pid ${__ifname}" - pane_run GUEST_2 "/sbin/dhclient -6 --no-pid ${__ifname}" - pane_status GUEST_1 - pane_status GUEST_2 + context_setup_nsenter qemu_1 -U -n -p --preserve-credentials -t ${__ns1_pid} + context_setup_nsenter qemu_2 -U -n -p --preserve-credentials -t ${__ns2_pid} + + __ifname="$(context_run qemu_1 "ip -j link show | jq -rM '.[] | select(.link_type == \"ether\").ifname'")" + + context_run qemu_1 "/sbin/dhclient -4 --no-pid ${__ifname}" + context_run qemu_2 "/sbin/dhclient -4 --no-pid ${__ifname}" + context_run qemu_1 "/sbin/dhclient -6 --no-pid ${__ifname}" + context_run qemu_2 "/sbin/dhclient -6 --no-pid ${__ifname}" __opts= [ ${PCAP} -eq 1 ] && __opts="${__opts} -p /tmp/passt_1.pcap" [ ${DEBUG} -eq 1 ] && __opts="${__opts} -d" [ ${TRACE} -eq 1 ] && __opts="${__opts} --trace" - pane_run PASST_1 "./passt -f ${__opts} -t 10001 -u 10001" + context_run_bg passt_1 "./passt -P passt_1.pid -f ${__opts} -t 10001 -u 10001" sleep 1 __opts= [ ${PCAP} -eq 1 ] && __opts="${__opts} -p /tmp/passt_2.pcap" [ ${DEBUG} -eq 1 ] && __opts="${__opts} -d" [ ${TRACE} -eq 1 ] && __opts="${__opts} --trace" - pane_run PASST_2 "./passt -f ${__opts} -t 10004 -u 10004" - pane_run GUEST_1 './qrap 5 qemu-system-$(uname -m)' \ + context_run_bg passt_2 "./passt -P passt_2.pid -f ${__opts} -t 10004 -u 10004" + + GUEST_1_CID=94557 + context_run_bg qemu_1 './qrap 5 qemu-system-$(uname -m)' \ ' -M accel=kvm:tcg' \ ' -m '${VMEM}' -cpu host -smp '${VCPUS} \ ' -kernel ' "/boot/vmlinuz-$(uname -r)" \ @@ -270,8 +255,11 @@ setup_two_guests() { 'virtio-net.napi_tx=1"' \ " -device virtio-net-pci,netdev=hostnet0,x-txburst=16384" \ " -netdev socket,fd=5,id=hostnet0" \ - ' -pidfile two_guests_qemu_1.pid' - pane_run GUEST_2 './qrap 5 qemu-system-$(uname -m)' \ + ' -pidfile two_guests_qemu_1.pid' \ + " -device vhost-vsock-pci,guest-cid=$GUEST_1_CID" + + GUEST_2_CID=94558 + context_run_bg qemu_2 './qrap 5 qemu-system-$(uname -m)' \ ' -M accel=kvm:tcg' \ ' -m '${VMEM}' -cpu host -smp '${VCPUS} \ ' -kernel ' "/boot/vmlinuz-$(uname -r)" \ @@ -281,9 +269,11 @@ setup_two_guests() { 'virtio-net.napi_tx=1"' \ " -device virtio-net-pci,netdev=hostnet0,x-txburst=16384" \ " -netdev socket,fd=5,id=hostnet0" \ - ' -pidfile two_guests_qemu_2.pid' - pane_status GUEST_1 - pane_status GUEST_2 + ' -pidfile two_guests_qemu_2.pid' \ + " -device vhost-vsock-pci,guest-cid=$GUEST_2_CID" + + context_setup_guest guest_1 ${GUEST_1_CID} + context_setup_guest guest_2 ${GUEST_2_CID} } # teardown_context_watch() - Remove contexts and stop panes watching them @@ -348,28 +338,29 @@ teardown_passt_in_ns() { # teardown_two_guests() - Exit namespaces, kill qemu processes, passt and pasta teardown_two_guests() { - kill $(cat two_guests_qemu_1.pid) - pane_wait GUEST_1 - tmux send-keys -t ${PANE_GUEST_1} "C-d" - - kill $(cat two_guests_qemu_2.pid) - pane_wait GUEST_2 - tmux send-keys -t ${PANE_GUEST_2} "C-d" - - tmux send-keys -t ${PANE_PASST_1} "C-c" - pane_wait PASST_1 - tmux send-keys -t ${PANE_PASST_1} "C-d" - - tmux send-keys -t ${PANE_PASST_2} "C-c" - pane_wait PASST_2 - tmux send-keys -t ${PANE_PASST_2} "C-d" - - pane_wait GUEST_1 - pane_wait GUEST_2 - pane_wait PASST_1 - pane_wait PASST_2 + __ns1_pid=$(${NSHOLDER} ns1.hold pid) + __ns2_pid=$(${NSHOLDER} ns2.hold pid) + nsenter -U -p --preserve-credentials -t ${__ns1_pid} kill $(cat two_guests_qemu_1.pid) + nsenter -U -p --preserve-credentials -t ${__ns2_pid} kill $(cat two_guests_qemu_2.pid) + context_wait qemu_1 + context_wait qemu_2 + + nsenter -U -p --preserve-credentials -t ${__ns1_pid} kill $(cat passt_1.pid) + nsenter -U -p --preserve-credentials -t ${__ns2_pid} kill $(cat passt_2.pid) + context_wait passt_1 + context_wait passt_2 + ${NSHOLDER} ns1.hold stop + ${NSHOLDER} ns2.hold stop + context_wait pasta_1 + context_wait pasta_2 + + rm -f passt_[12].pid pasta_[12].pid teardown_context_watch ${PANE_HOST} host + teardown_context_watch ${PANE_GUEST_1} qemu_1 guest_1 + teardown_context_watch ${PANE_GUEST_2} qemu_2 guest_2 + teardown_context_watch ${PANE_PASST_1} pasta_1 passt_1 + teardown_context_watch ${PANE_PASST_2} pasta_2 passt_2 } # teardown_demo_passt() - Exit namespace, kill qemu, passt and pasta -- 2.37.3

David Gibson

3:49 a.m.

New subject: [PATCH v2 11/11] test: Use new-style command issue for passt_in_ns tests

Put the pieces together to use the new style context based dispatch for the passt_in_pasta tests. Signed-off-by: David Gibson --- test/lib/layout | 10 ++---- test/lib/setup | 73 +++++++++++++++++---------------------- test/shutdown/passt_in_ns | 4 +-- test/tcp/passt_in_ns | 1 + test/udp/passt_in_ns | 1 + 5 files changed, 37 insertions(+), 52 deletions(-) diff --git a/test/lib/layout b/test/lib/layout index b9d30e9..cc7c688 100644 --- a/test/lib/layout +++ b/test/lib/layout @@ -125,11 +125,8 @@ layout_passt_in_pasta() { get_info_cols - tmux pipe-pane -O -t ${PANE_GUEST} "cat >> ${LOGDIR}/pane_guest.log" - tmux select-pane -t ${PANE_GUEST} -T "guest" - - tmux pipe-pane -O -t ${PANE_NS} "cat >> ${LOGDIR}/pane_ns.log" - tmux select-pane -t ${PANE_NS} -T "namespace" + pane_watch_contexts ${PANE_GUEST} "guest" qemu guest + pane_watch_contexts ${PANE_NS} "namespace" ns tmux send-keys -l -t ${PANE_INFO} 'while cat /tmp/.passt_test_log_pipe; do :; done' tmux send-keys -t ${PANE_INFO} -N 100 C-m @@ -137,8 +134,7 @@ layout_passt_in_pasta() { pane_watch_contexts ${PANE_HOST} host host - tmux pipe-pane -O -t ${PANE_PASST} "cat >> ${LOGDIR}/pane_passt.log" - tmux select-pane -t ${PANE_PASST} -T "passt in pasta (namespace)" + pane_watch_contexts ${PANE_PASST} "passt in pasta (namespace)" pasta passt info_layout "passt and guest in namespace, connected by pasta" diff --git a/test/lib/setup b/test/lib/setup index 6eccd8c..957a9cc 100755 --- a/test/lib/setup +++ b/test/lib/setup @@ -105,6 +105,7 @@ setup_pasta() { # setup_passt_in_ns() - Set up namespace (with pasta), run qemu and passt into it setup_passt_in_ns() { context_setup_host host + context_setup_host pasta layout_passt_in_pasta @@ -127,28 +128,18 @@ setup_passt_in_ns() { [ ${DEBUG} -eq 1 ] && __opts="${__opts} -d" [ ${TRACE} -eq 1 ] && __opts="${__opts} --trace" - __pid_file="$(mktemp)" - pane_run PASST "./pasta ${__opts} -t 10001,10002,10011,10012 -T 10003,10013 -u 10001,10002,10011,10012 -U 10003,10013 -P ${__pid_file}" + context_run_bg pasta "./pasta ${__opts} -t 10001,10002,10011,10012 -T 10003,10013 -u 10001,10002,10011,10012 -U 10003,10013 -P pasta.pid ${NSHOLDER} ns.hold hold" sleep 1 - pane_run PASST '' - pane_status PASST - __pasta_pid="$(cat "${__pid_file}")" - __ns_pid="$(cat /proc/${__pasta_pid}/task/${__pasta_pid}/children | cut -f1 -d' ')" - rm "${__pid_file}" - - pane_run GUEST "nsenter -t ${__ns_pid} -U -n --preserve-credentials" - pane_run NS "nsenter -t ${__ns_pid} -U -n -p --preserve-credentials" - pane_status GUEST - pane_status NS - - pane_run NS "ip -j link show | jq -rM '.[] | select(.link_type == \"ether\").ifname'" - pane_wait NS - __ifname="$(pane_parse NS)" - pane_run NS "/sbin/dhclient -4 --no-pid ${__ifname}" - pane_status NS + __ns_pid=$(${NSHOLDER} ns.hold pid) + + context_setup_nsenter qemu "-t ${__ns_pid} -U -n -p --preserve-credentials" + context_setup_nsenter ns "-t ${__ns_pid} -U -n -p --preserve-credentials" + context_setup_nsenter passt "-t ${__ns_pid} -U -n -p --preserve-credentials" + + __ifname=$(context_run ns "ip -j link show | jq -rM '.[] | select(.link_type == \"ether\").ifname'") + context_run ns "/sbin/dhclient -4 --no-pid ${__ifname}" sleep 2 - pane_run NS "/sbin/dhclient -6 --no-pid ${__ifname}" - pane_status NS + context_run ns "/sbin/dhclient -6 --no-pid ${__ifname}" __opts= [ ${PCAP} -eq 1 ] && __opts="${__opts} -p /tmp/passt_in_pasta.pcap" @@ -156,21 +147,18 @@ setup_passt_in_ns() { [ ${TRACE} -eq 1 ] && __opts="${__opts} --trace" if [ ${VALGRIND} -eq 1 ]; then - pane_run PASST "make clean" - pane_status PASST - pane_run PASST "make valgrind" - pane_status PASST - pane_run PASST "valgrind --max-stackframe=$((4 * 1024 * 1024)) --trace-children=yes --vgdb=no --error-exitcode=1 --suppressions=test/valgrind.supp ./passt -f ${__opts} -t 10001,10011,10021,10031 -u 10001,10011,10021,10031 -P passt.pid" + context_run passt "make clean" + context_run passt "make valgrind" + context_run_bg passt "valgrind --max-stackframe=$((4 * 1024 * 1024)) --trace-children=yes --vgdb=no --error-exitcode=1 --suppressions=test/valgrind.supp ./passt -f ${__opts} -t 10001,10011,10021,10031 -u 10001,10011,10021,10031 -P passt.pid" else - pane_run PASST "make clean" - pane_status PASST - pane_run PASST "make" - pane_status PASST - pane_run PASST "./passt -f ${__opts} -t 10001,10011,10021,10031 -u 10001,10011,10021,10031 -P passt.pid" + context_run passt "make clean" + context_run passt "make" + context_run_bg passt "./passt -f ${__opts} -t 10001,10011,10021,10031 -u 10001,10011,10021,10031 -P passt.pid" fi sleep 5 - pane_run GUEST './qrap 5 qemu-system-$(uname -m)' \ + GUEST_CID=94557 + context_run_bg qemu './qrap 5 qemu-system-$(uname -m)' \ ' -machine accel=kvm' \ ' -M accel=kvm:tcg' \ ' -m '${VMEM}' -cpu host -smp '${VCPUS} \ @@ -181,8 +169,10 @@ setup_passt_in_ns() { 'virtio-net.napi_tx=1"' \ " -device virtio-net-pci,netdev=hostnet0,x-txburst=524288" \ " -netdev socket,fd=5,id=hostnet0" \ - ' -pidfile passt_in_ns_qemu.pid' - pane_status GUEST + ' -pidfile passt_in_ns_qemu.pid' \ + " -device vhost-vsock-pci,guest-cid=$GUEST_CID" + + context_setup_guest guest $GUEST_CID } # setup_two_guests() - Set up two namespace, run qemu and passt in both of them @@ -321,19 +311,18 @@ teardown_pasta() { # teardown_passt_in_ns() - Exit namespace, kill qemu and pasta, remove pid file teardown_passt_in_ns() { - kill $(cat passt_in_ns_qemu.pid) - pane_wait GUEST - tmux send-keys -t ${PANE_GUEST} "C-d" - - tmux send-keys -t ${PANE_PASST} "C-d" + context_run ns kill $(cat passt_in_ns_qemu.pid) + context_wait qemu - pane_wait GUEST - pane_wait NS - pane_wait PASST + ${NSHOLDER} ns.hold stop + context_wait pasta - rm passt.pid + rm passt.pid pasta.pid teardown_context_watch ${PANE_HOST} host + teardown_context_watch ${PANE_PASST} pasta passt + teardown_context_watch ${PANE_NS} ns + teardown_context_watch ${PANE_GUEST} qemu guest } # teardown_two_guests() - Exit namespaces, kill qemu processes, passt and pasta diff --git a/test/shutdown/passt_in_ns b/test/shutdown/passt_in_ns index a427bf4..3808adb 100644 --- a/test/shutdown/passt_in_ns +++ b/test/shutdown/passt_in_ns @@ -17,6 +17,4 @@ test shutdown: exit code nsout PASST_PID cat passt.pid ns kill __PASST_PID__ sleep 1 - -pout EXIT echo $? -check [ "__EXIT__" = "0" ] +passtw diff --git a/test/tcp/passt_in_ns b/test/tcp/passt_in_ns index cb01781..a248f00 100644 --- a/test/tcp/passt_in_ns +++ b/test/tcp/passt_in_ns @@ -66,6 +66,7 @@ check [ "__HOST_MD5_BIG__" = "__MD5_BIG__" ] test TCP/IPv4: ns to guest (using loopback address): big transfer guestb socat -u TCP4-LISTEN:10001 OPEN:test_big.bin,create,trunc +sleep 1 ns socat -u OPEN:__TEMP_NS_BIG__ TCP4:127.0.0.1:10001 guestw gout GUEST_MD5_BIG md5sum test_big.bin | cut -d' ' -f1 diff --git a/test/udp/passt_in_ns b/test/udp/passt_in_ns index f5ea402..d5f08fe 100644 --- a/test/udp/passt_in_ns +++ b/test/udp/passt_in_ns @@ -19,6 +19,7 @@ test UDP/IPv4: host to guest temp TEMP temp SC_PID guestb (socat -u UDP4-LISTEN:10001 STDOUT & echo $! > sc.pid) | tee test.bin | (grep -qm1 "END_OF_TEST" && kill $(cat sc.pid)) +sleep 1 host dd if=/dev/urandom bs=1k count=5 > __TEMP__ && printf "\nEND_OF_TEST\n" >> __TEMP__ host socat -u OPEN:__TEMP__ UDP4:127.0.0.1:10001 guestw -- 2.37.3

Stefano Brivio

9 Sep 9 Sep

5:19 p.m.

New subject: [PATCH v2 11/11] test: Use new-style command issue for passt_in_ns tests

On Thu, 8 Sep 2022 11:49:20 +1000 David Gibson wrote:

...

Put the pieces together to use the new style context based dispatch for the passt_in_pasta tests.

Signed-off-by: David Gibson

[...]

+++ b/test/lib/setup

[...]

@@ -156,21 +147,18 @@ setup_passt_in_ns() { [ ${TRACE} -eq 1 ] && __opts="${__opts} --trace"

if [ ${VALGRIND} -eq 1 ]; then - pane_run PASST "make clean" - pane_status PASST - pane_run PASST "make valgrind" - pane_status PASST - pane_run PASST "valgrind --max-stackframe=$((4 * 1024 * 1024)) --trace-children=yes --vgdb=no --error-exitcode=1 --suppressions=test/valgrind.supp ./passt -f ${__opts} -t 10001,10011,10021,10031 -u 10001,10011,10021,10031 -P passt.pid" + context_run passt "make clean" + context_run passt "make valgrind" + context_run_bg passt "valgrind --max-stackframe=$((4 * 1024 * 1024)) --trace-children=yes --vgdb=no --error-exitcode=1 --suppressions=test/valgrind.supp ./passt -f ${__opts} -t 10001,10011,10021,10031 -u 10001,10011,10021,10031 -P passt.pid" else - pane_run PASST "make clean" - pane_status PASST - pane_run PASST "make" - pane_status PASST - pane_run PASST "./passt -f ${__opts} -t 10001,10011,10021,10031 -u 10001,10011,10021,10031 -P passt.pid" + context_run passt "make clean" + context_run passt "make" + context_run_bg passt "./passt -f ${__opts} -t 10001,10011,10021,10031 -u 10001,10011,10021,10031 -P passt.pid" fi sleep 5

- pane_run GUEST './qrap 5 qemu-system-$(uname -m)' \ + GUEST_CID=94557

While this seems to be perfectly valid: is it supposed to be random, or a specific number for a reason I'm missing...? -- Stefano

David Gibson

10 Sep 10 Sep

8:47 a.m.

New subject: [PATCH v2 11/11] test: Use new-style command issue for passt_in_ns tests

On Fri, Sep 09, 2022 at 05:19:02PM +0200, Stefano Brivio wrote:

...

On Thu, 8 Sep 2022 11:49:20 +1000 David Gibson wrote:

...
Put the pieces together to use the new style context based dispatch for the passt_in_pasta tests.

Signed-off-by: David Gibson

[...]

+++ b/test/lib/setup

[...]

@@ -156,21 +147,18 @@ setup_passt_in_ns() { [ ${TRACE} -eq 1 ] && __opts="${__opts} --trace"

if [ ${VALGRIND} -eq 1 ]; then - pane_run PASST "make clean" - pane_status PASST - pane_run PASST "make valgrind" - pane_status PASST - pane_run PASST "valgrind --max-stackframe=$((4 * 1024 * 1024)) --trace-children=yes --vgdb=no --error-exitcode=1 --suppressions=test/valgrind.supp ./passt -f ${__opts} -t 10001,10011,10021,10031 -u 10001,10011,10021,10031 -P passt.pid" + context_run passt "make clean" + context_run passt "make valgrind" + context_run_bg passt "valgrind --max-stackframe=$((4 * 1024 * 1024)) --trace-children=yes --vgdb=no --error-exitcode=1 --suppressions=test/valgrind.supp ./passt -f ${__opts} -t 10001,10011,10021,10031 -u 10001,10011,10021,10031 -P passt.pid" else - pane_run PASST "make clean" - pane_status PASST - pane_run PASST "make" - pane_status PASST - pane_run PASST "./passt -f ${__opts} -t 10001,10011,10021,10031 -u 10001,10011,10021,10031 -P passt.pid" + context_run passt "make clean" + context_run passt "make" + context_run_bg passt "./passt -f ${__opts} -t 10001,10011,10021,10031 -u 10001,10011,10021,10031 -P passt.pid" fi sleep 5

- pane_run GUEST './qrap 5 qemu-system-$(uname -m)' \ + GUEST_CID=94557

While this seems to be perfectly valid: is it supposed to be random, or a specific number for a reason I'm missing...?

It's entirely arbitrary - I went with as close a visual approximation of 'passt' as I could manage with digits (which isn't very close at all). -- David Gibson | I'll have my music baroque, and my code david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_ | _way_ _around_! http://www.ozlabs.org/~dgibson

Stefano Brivio

10:40 p.m.

New subject: [PATCH v2 11/11] test: Use new-style command issue for passt_in_ns tests

On Sat, 10 Sep 2022 16:47:28 +1000 David Gibson wrote:

...

On Fri, Sep 09, 2022 at 05:19:02PM +0200, Stefano Brivio wrote:

...
On Thu, 8 Sep 2022 11:49:20 +1000 David Gibson wrote:

...
Put the pieces together to use the new style context based dispatch for the passt_in_pasta tests.

Signed-off-by: David Gibson

[...]

+++ b/test/lib/setup

[...]

@@ -156,21 +147,18 @@ setup_passt_in_ns() { [ ${TRACE} -eq 1 ] && __opts="${__opts} --trace"

if [ ${VALGRIND} -eq 1 ]; then - pane_run PASST "make clean" - pane_status PASST - pane_run PASST "make valgrind" - pane_status PASST - pane_run PASST "valgrind --max-stackframe=$((4 * 1024 * 1024)) --trace-children=yes --vgdb=no --error-exitcode=1 --suppressions=test/valgrind.supp ./passt -f ${__opts} -t 10001,10011,10021,10031 -u 10001,10011,10021,10031 -P passt.pid" + context_run passt "make clean" + context_run passt "make valgrind" + context_run_bg passt "valgrind --max-stackframe=$((4 * 1024 * 1024)) --trace-children=yes --vgdb=no --error-exitcode=1 --suppressions=test/valgrind.supp ./passt -f ${__opts} -t 10001,10011,10021,10031 -u 10001,10011,10021,10031 -P passt.pid" else - pane_run PASST "make clean" - pane_status PASST - pane_run PASST "make" - pane_status PASST - pane_run PASST "./passt -f ${__opts} -t 10001,10011,10021,10031 -u 10001,10011,10021,10031 -P passt.pid" + context_run passt "make clean" + context_run passt "make" + context_run_bg passt "./passt -f ${__opts} -t 10001,10011,10021,10031 -u 10001,10011,10021,10031 -P passt.pid" fi sleep 5

- pane_run GUEST './qrap 5 qemu-system-$(uname -m)' \ + GUEST_CID=94557

While this seems to be perfectly valid: is it supposed to be random, or a specific number for a reason I'm missing...?

It's entirely arbitrary - I went with as close a visual approximation of 'passt' as I could manage with digits (which isn't very close at all).

Hah, sorry, of course. I would say it's actually the most acceptable translation of passt in leetspeek: https://en.wikipedia.org/wiki/Leet#Orthography ...never mind. -- Stefano

Stefano Brivio

9 Sep 9 Sep

5:21 p.m.

On Thu, 8 Sep 2022 11:49:09 +1000 David Gibson wrote:

...

Sorry for the resend, but I found and fixed a couple of warts in this series.

The test scripts need to dispatch commands in various different contexts: on the host, in namespaces, and in guests. Currently this is done by running each context in a tmux pane and simulating typing into that pane using tmux commands. This has a number of problems:

* It's slow * Getting the results from programs is tricky and error prone. We can misparse output if: * The window isn't large enough * Commands produce output which looks like a shell prompt * The shell doesn't have the prompt we expect * A accidental keypress while the tests are running can mess up the test run * We have to issue explicit "echo $?" commands to check if things succeeded

This series adds a new subsystem to the test scripts for dispatching commands which accurately preserves output (both stdout and stderr), and exit codes.

Most of the testsuite is converted to this new system. For now the distro tests still rely on the old approach, since they have some complications that require additional handling. That does, alas, mean we have some ugly transitional code remaining. Oh well, we should be able to clean that up at some point.

This series is pased on the previous series cleaning up the performance tests.

Changes since v1: * Removed a couple of commented debugging lines in patch 9/11 * Removed a no longer necessary pipe-pane in patch 9/11

In general, this looks like a big improvement, and I would try to apply it basically as it is (I haven't run the tests yet). There are a few nits that might need to be addressed. I can fix them up on merge, unless you re-spin this, but I'd need some help with the comment on 11/11. -- Stefano

David Gibson

10 Sep 10 Sep

8:59 a.m.

On Fri, Sep 09, 2022 at 05:21:27PM +0200, Stefano Brivio wrote:

...

On Thu, 8 Sep 2022 11:49:09 +1000 David Gibson wrote:

...
Sorry for the resend, but I found and fixed a couple of warts in this series.

The test scripts need to dispatch commands in various different contexts: on the host, in namespaces, and in guests. Currently this is done by running each context in a tmux pane and simulating typing into that pane using tmux commands. This has a number of problems:

* It's slow * Getting the results from programs is tricky and error prone. We can misparse output if: * The window isn't large enough * Commands produce output which looks like a shell prompt * The shell doesn't have the prompt we expect * A accidental keypress while the tests are running can mess up the test run * We have to issue explicit "echo $?" commands to check if things succeeded

This series adds a new subsystem to the test scripts for dispatching commands which accurately preserves output (both stdout and stderr), and exit codes.

Most of the testsuite is converted to this new system. For now the distro tests still rely on the old approach, since they have some complications that require additional handling. That does, alas, mean we have some ugly transitional code remaining. Oh well, we should be able to clean that up at some point.

This series is pased on the previous series cleaning up the performance tests.

Changes since v1: * Removed a couple of commented debugging lines in patch 9/11 * Removed a no longer necessary pipe-pane in patch 9/11

In general, this looks like a big improvement, and I would try to apply it basically as it is (I haven't run the tests yet).

There are a few nits that might need to be addressed. I can fix them up on merge, unless you re-spin this, but I'd need some help with the comment on 11/11.

I'll send a respin next week when I can re-run the tests. This weekend I've realized another problem with the current testsuite: it reacts very poorly if the host has no IPv6 connectivity. Unusually for Australia I do have IPv6 at home, but not while I'm travelling with mobile data. I could get it using a VPN, of course, but it's a hassle. Anyway, that's another reason why having a more controlled artificial network environment for the tests would be valuable; I'll tackle that when I can. -- David Gibson | I'll have my music baroque, and my code david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_ | _way_ _around_! http://www.ozlabs.org/~dgibson

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[PATCH v2 00/11] Improve command dispatch in test scripts

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