From e6918187568dbd01842d8d1d2c808ce16a894239 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 21 Apr 2024 13:54:28 +0200
Subject: Adding upstream version 18.2.2.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 src/spdk/test/dd/posix.sh | 122 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 122 insertions(+)
 create mode 100755 src/spdk/test/dd/posix.sh

(limited to 'src/spdk/test/dd/posix.sh')

diff --git a/src/spdk/test/dd/posix.sh b/src/spdk/test/dd/posix.sh
new file mode 100755
index 000000000..15346d8d3
--- /dev/null
+++ b/src/spdk/test/dd/posix.sh
@@ -0,0 +1,122 @@
+#!/usr/bin/env bash
+testdir=$(readlink -f "$(dirname "$0")")
+rootdir=$(readlink -f "$testdir/../../")
+source "$testdir/common.sh"
+
+cleanup() {
+	rm -f "$test_file0"{,.link}
+	rm -f "$test_file1"{,.link}
+}
+
+append() {
+	local dump0
+	local dump1
+
+	dump0=$(gen_bytes 32)
+	dump1=$(gen_bytes 32)
+
+	printf '%s' "$dump0" > "$test_file0"
+	printf '%s' "$dump1" > "$test_file1"
+
+	"${DD_APP[@]}" --if="$test_file0" --of="$test_file1" --oflag=append
+
+	[[ $(< "$test_file1") == "${dump1}${dump0}" ]]
+}
+
+directory() {
+	NOT "${DD_APP[@]}" --if="$test_file0" --iflag=directory --of="$test_file0"
+	NOT "${DD_APP[@]}" --if="$test_file0" --of="$test_file0" --oflag=directory
+}
+
+nofollow() {
+	local test_file0_link=$test_file0.link
+	local test_file1_link=$test_file1.link
+
+	ln -fs "$test_file0" "$test_file0_link"
+	ln -fs "$test_file1" "$test_file1_link"
+
+	NOT "${DD_APP[@]}" --if="$test_file0_link" --iflag=nofollow --of="$test_file1"
+	NOT "${DD_APP[@]}" --if="$test_file0" --of="$test_file1_link" --oflag=nofollow
+
+	# Do an extra step of checking if we actually can follow symlinks
+	gen_bytes 512 > "$test_file0"
+
+	"${DD_APP[@]}" --if="$test_file0_link" --of="$test_file1"
+	[[ $(< "$test_file0") == "$(< "$test_file1")" ]]
+}
+
+noatime() {
+	local atime_if
+	local atime_of
+
+	# It seems like spdk_dd doesn't update the atime in case 0 bytes are copied.
+	# This differs from how standard dd works for instance
+	gen_bytes 512 > "$test_file0"
+
+	atime_if=$(stat --printf="%X" "$test_file0")
+	atime_of=$(stat --printf="%X" "$test_file1")
+
+	"${DD_APP[@]}" --if="$test_file0" --iflag=noatime --of="$test_file1"
+	((atime_if == $(stat --printf="%X" "$test_file0")))
+	((atime_of == $(stat --printf="%X" "$test_file1")))
+
+	"${DD_APP[@]}" --if="$test_file0" --of="$test_file1"
+	((atime_if < $(stat --printf="%X" "$test_file0")))
+}
+
+io() {
+	local flags_ro flags_rw flag_ro flag_rw
+
+	# O_NONBLOCK is actually a no-op, from a functional perspective, while
+	# open()ing a regular file, but let's keep it just to test its usage.
+	flags_ro=(direct nonblock)
+	flags_rw=("${flags_ro[@]}" sync dsync)
+
+	# simply check if data was correctly copied between files
+	for flag_ro in "${flags_ro[@]}"; do
+		gen_bytes 512 > "$test_file0"
+		for flag_rw in "${flags_rw[@]}"; do
+			"${DD_APP[@]}" \
+				--if="$test_file0" \
+				--iflag="$flag_ro" \
+				--of="$test_file1" \
+				--oflag="$flag_rw"
+			[[ $(< "$test_file0") == "$(< "$test_file1")" ]]
+		done
+	done
+}
+
+tests() {
+	printf '* First test run%s\n' \
+		"${msg[liburing_in_use]}" >&2
+
+	run_test "dd_flag_append" append
+	run_test "dd_flag_directory" directory
+	run_test "dd_flag_nofollow" nofollow
+	run_test "dd_flag_noatime" noatime
+	run_test "dd_flags_misc" io
+}
+
+tests_forced_aio() {
+	printf '* Second test run%s\n' \
+		"${msg[liburing_in_use ? 2 : 0]}" >&2
+
+	DD_APP+=("--aio")
+	run_test "dd_flag_append_forced_aio" append
+	run_test "dd_flag_directory_forced_aio" directory
+	run_test "dd_flag_nofollow_forced_aio" nofollow
+	run_test "dd_flag_noatime_forced_aio" noatime
+	run_test "dd_flags_misc_forced_aio" io
+}
+
+msg[0]=", using AIO"
+msg[1]=", liburing in use"
+msg[2]=", disabling liburing, forcing AIO"
+
+trap "cleanup" EXIT
+
+test_file0=$SPDK_TEST_STORAGE/dd.dump0
+test_file1=$SPDK_TEST_STORAGE/dd.dump1
+
+tests
+tests_forced_aio
-- 
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