The patch titled
Subject: lib/test-string_helpers: add test cases for new features
has been removed from the -mm tree. Its filename was
lib-test-string_helpers-add-test-cases-for-new-features.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Subject: lib/test-string_helpers: add test cases for new features
We have got new flags and hence new features of string_escape_mem().
Add test cases for that.
Link: https://lkml.kernel.org/r/20210504180819.73127-10-andriy.shevchenko@xxxxxxxxxxxxxxx
Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Cc: Alexander Viro <viro@xxxxxxxxxxxxxxxxxx>
Cc: Chuck Lever <chuck.lever@xxxxxxxxxx>
Cc: "J. Bruce Fields" <bfields@xxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/string_helpers.h | 4
lib/test-string_helpers.c | 141 +++++++++++++++++++++++++++++--
2 files changed, 137 insertions(+), 8 deletions(-)
--- a/include/linux/string_helpers.h~lib-test-string_helpers-add-test-cases-for-new-features
+++ a/include/linux/string_helpers.h
@@ -26,6 +26,8 @@ void string_get_size(u64 size, u64 blk_s
#define UNESCAPE_ANY \
(UNESCAPE_SPACE | UNESCAPE_OCTAL | UNESCAPE_HEX | UNESCAPE_SPECIAL)
+#define UNESCAPE_ALL_MASK GENMASK(3, 0)
+
int string_unescape(char *src, char *dst, size_t size, unsigned int flags);
static inline int string_unescape_inplace(char *buf, unsigned int flags)
@@ -56,6 +58,8 @@ static inline int string_unescape_any_in
#define ESCAPE_NAP BIT(7)
#define ESCAPE_APPEND BIT(8)
+#define ESCAPE_ALL_MASK GENMASK(8, 0)
+
int string_escape_mem(const char *src, size_t isz, char *dst, size_t osz,
unsigned int flags, const char *only);
--- a/lib/test-string_helpers.c~lib-test-string_helpers-add-test-cases-for-new-features
+++ a/lib/test-string_helpers.c
@@ -203,10 +203,24 @@ static const struct test_string_2 escape
/* terminator */
}}
},{
+ .in = "\007 \eb\"\x90\xCF\r",
+ .s1 = {{
+ .out = "\007 \eb\"\\220\\317\r",
+ .flags = ESCAPE_OCTAL | ESCAPE_NA,
+ },{
+ .out = "\007 \eb\"\\x90\\xcf\r",
+ .flags = ESCAPE_HEX | ESCAPE_NA,
+ },{
+ .out = "\007 \eb\"\x90\xCF\r",
+ .flags = ESCAPE_NA,
+ },{
+ /* terminator */
+ }}
+},{
/* terminator */
}};
-#define TEST_STRING_2_DICT_1 "b\\ \t\r"
+#define TEST_STRING_2_DICT_1 "b\\ \t\r\xCF"
static const struct test_string_2 escape1[] __initconst = {{
.in = "\f\\ \n\r\t\v",
.s1 = {{
@@ -216,14 +230,38 @@ static const struct test_string_2 escape
.out = "\f\\x5c\\x20\n\\x0d\\x09\v",
.flags = ESCAPE_HEX,
},{
+ .out = "\f\\134\\040\n\\015\\011\v",
+ .flags = ESCAPE_ANY | ESCAPE_APPEND,
+ },{
+ .out = "\\014\\134\\040\\012\\015\\011\\013",
+ .flags = ESCAPE_OCTAL | ESCAPE_APPEND | ESCAPE_NAP,
+ },{
+ .out = "\\x0c\\x5c\\x20\\x0a\\x0d\\x09\\x0b",
+ .flags = ESCAPE_HEX | ESCAPE_APPEND | ESCAPE_NAP,
+ },{
+ .out = "\f\\134\\040\n\\015\\011\v",
+ .flags = ESCAPE_OCTAL | ESCAPE_APPEND | ESCAPE_NA,
+ },{
+ .out = "\f\\x5c\\x20\n\\x0d\\x09\v",
+ .flags = ESCAPE_HEX | ESCAPE_APPEND | ESCAPE_NA,
+ },{
/* terminator */
}}
},{
- .in = "\\h\\\"\a\e\\",
+ .in = "\\h\\\"\a\xCF\e\\",
.s1 = {{
- .out = "\\134h\\134\"\a\e\\134",
+ .out = "\\134h\\134\"\a\\317\e\\134",
.flags = ESCAPE_OCTAL,
},{
+ .out = "\\134h\\134\"\a\\317\e\\134",
+ .flags = ESCAPE_ANY | ESCAPE_APPEND,
+ },{
+ .out = "\\134h\\134\"\\007\\317\\033\\134",
+ .flags = ESCAPE_OCTAL | ESCAPE_APPEND | ESCAPE_NAP,
+ },{
+ .out = "\\134h\\134\"\a\\317\e\\134",
+ .flags = ESCAPE_OCTAL | ESCAPE_APPEND | ESCAPE_NA,
+ },{
/* terminator */
}}
},{
@@ -235,6 +273,88 @@ static const struct test_string_2 escape
/* terminator */
}}
},{
+ .in = "\007 \eb\"\x90\xCF\r",
+ .s1 = {{
+ .out = "\007 \eb\"\x90\xCF\r",
+ .flags = ESCAPE_NA,
+ },{
+ .out = "\007 \eb\"\x90\xCF\r",
+ .flags = ESCAPE_SPACE | ESCAPE_NA,
+ },{
+ .out = "\007 \eb\"\x90\xCF\r",
+ .flags = ESCAPE_SPECIAL | ESCAPE_NA,
+ },{
+ .out = "\007 \eb\"\x90\xCF\r",
+ .flags = ESCAPE_SPACE | ESCAPE_SPECIAL | ESCAPE_NA,
+ },{
+ .out = "\007 \eb\"\x90\\317\r",
+ .flags = ESCAPE_OCTAL | ESCAPE_NA,
+ },{
+ .out = "\007 \eb\"\x90\\317\r",
+ .flags = ESCAPE_SPACE | ESCAPE_OCTAL | ESCAPE_NA,
+ },{
+ .out = "\007 \eb\"\x90\\317\r",
+ .flags = ESCAPE_SPECIAL | ESCAPE_OCTAL | ESCAPE_NA,
+ },{
+ .out = "\007 \eb\"\x90\\317\r",
+ .flags = ESCAPE_ANY | ESCAPE_NA,
+ },{
+ .out = "\007 \eb\"\x90\\xcf\r",
+ .flags = ESCAPE_HEX | ESCAPE_NA,
+ },{
+ .out = "\007 \eb\"\x90\\xcf\r",
+ .flags = ESCAPE_SPACE | ESCAPE_HEX | ESCAPE_NA,
+ },{
+ .out = "\007 \eb\"\x90\\xcf\r",
+ .flags = ESCAPE_SPECIAL | ESCAPE_HEX | ESCAPE_NA,
+ },{
+ .out = "\007 \eb\"\x90\\xcf\r",
+ .flags = ESCAPE_SPACE | ESCAPE_SPECIAL | ESCAPE_HEX | ESCAPE_NA,
+ },{
+ /* terminator */
+ }}
+},{
+ .in = "\007 \eb\"\x90\xCF\r",
+ .s1 = {{
+ .out = "\007 \eb\"\x90\xCF\r",
+ .flags = ESCAPE_NAP,
+ },{
+ .out = "\007 \eb\"\x90\xCF\\r",
+ .flags = ESCAPE_SPACE | ESCAPE_NAP,
+ },{
+ .out = "\007 \eb\"\x90\xCF\r",
+ .flags = ESCAPE_SPECIAL | ESCAPE_NAP,
+ },{
+ .out = "\007 \eb\"\x90\xCF\\r",
+ .flags = ESCAPE_SPACE | ESCAPE_SPECIAL | ESCAPE_NAP,
+ },{
+ .out = "\007 \eb\"\x90\\317\\015",
+ .flags = ESCAPE_OCTAL | ESCAPE_NAP,
+ },{
+ .out = "\007 \eb\"\x90\\317\\r",
+ .flags = ESCAPE_SPACE | ESCAPE_OCTAL | ESCAPE_NAP,
+ },{
+ .out = "\007 \eb\"\x90\\317\\015",
+ .flags = ESCAPE_SPECIAL | ESCAPE_OCTAL | ESCAPE_NAP,
+ },{
+ .out = "\007 \eb\"\x90\\317\r",
+ .flags = ESCAPE_ANY | ESCAPE_NAP,
+ },{
+ .out = "\007 \eb\"\x90\\xcf\\x0d",
+ .flags = ESCAPE_HEX | ESCAPE_NAP,
+ },{
+ .out = "\007 \eb\"\x90\\xcf\\r",
+ .flags = ESCAPE_SPACE | ESCAPE_HEX | ESCAPE_NAP,
+ },{
+ .out = "\007 \eb\"\x90\\xcf\\x0d",
+ .flags = ESCAPE_SPECIAL | ESCAPE_HEX | ESCAPE_NAP,
+ },{
+ .out = "\007 \eb\"\x90\\xcf\\r",
+ .flags = ESCAPE_SPACE | ESCAPE_SPECIAL | ESCAPE_HEX | ESCAPE_NAP,
+ },{
+ /* terminator */
+ }}
+},{
/* terminator */
}};
@@ -315,8 +435,13 @@ static __init void test_string_escape(co
/* NULL injection */
if (flags & ESCAPE_NULL) {
in[p++] = '\0';
- out_test[q_test++] = '\\';
- out_test[q_test++] = '0';
+ /* '\0' passes isascii() test */
+ if (flags & ESCAPE_NA && !(flags & ESCAPE_APPEND && esc)) {
+ out_test[q_test++] = '\0';
+ } else {
+ out_test[q_test++] = '\\';
+ out_test[q_test++] = '0';
+ }
}
/* Don't try strings that have no output */
@@ -459,17 +584,17 @@ static int __init test_string_helpers_in
unsigned int i;
pr_info("Running tests...\n");
- for (i = 0; i < UNESCAPE_ANY + 1; i++)
+ for (i = 0; i < UNESCAPE_ALL_MASK + 1; i++)
test_string_unescape("unescape", i, false);
test_string_unescape("unescape inplace",
get_random_int() % (UNESCAPE_ANY + 1), true);
/* Without dictionary */
- for (i = 0; i < (ESCAPE_ANY_NP | ESCAPE_HEX) + 1; i++)
+ for (i = 0; i < ESCAPE_ALL_MASK + 1; i++)
test_string_escape("escape 0", escape0, i, TEST_STRING_2_DICT_0);
/* With dictionary */
- for (i = 0; i < (ESCAPE_ANY_NP | ESCAPE_HEX) + 1; i++)
+ for (i = 0; i < ESCAPE_ALL_MASK + 1; i++)
test_string_escape("escape 1", escape1, i, TEST_STRING_2_DICT_1);
/* Test string_get_size() */
_
Patches currently in -mm which might be from andriy.shevchenko@xxxxxxxxxxxxxxx are
