From: Kuniyuki Iwashima <kuniyu@amazon.co.jp>
To: "David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>,
Alexei Starovoitov <ast@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
Andrii Nakryiko <andrii@kernel.org>,
Martin KaFai Lau <kafai@fb.com>,
"Song Liu" <songliubraving@fb.com>, Yonghong Song <yhs@fb.com>,
John Fastabend <john.fastabend@gmail.com>,
KP Singh <kpsingh@kernel.org>
Cc: Benjamin Herrenschmidt <benh@amazon.com>,
Kuniyuki Iwashima <kuniyu@amazon.co.jp>,
Kuniyuki Iwashima <kuni1840@gmail.com>, <bpf@vger.kernel.org>,
<netdev@vger.kernel.org>
Subject: [PATCH v6 bpf-next 4/4] selftest/bpf: Extend the bpf_snprintf() test for "%c".
Date: Sat, 14 Aug 2021 10:57:18 +0900 [thread overview]
Message-ID: <20210814015718.42704-5-kuniyu@amazon.co.jp> (raw)
In-Reply-To: <20210814015718.42704-1-kuniyu@amazon.co.jp>
This patch adds various "positive" patterns for "%c" and two "negative"
patterns for wide character.
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.co.jp>
---
tools/testing/selftests/bpf/prog_tests/snprintf.c | 4 +++-
tools/testing/selftests/bpf/progs/test_snprintf.c | 6 +++---
2 files changed, 6 insertions(+), 4 deletions(-)
diff --git a/tools/testing/selftests/bpf/prog_tests/snprintf.c b/tools/testing/selftests/bpf/prog_tests/snprintf.c
index dffbcaa1ec98..8fd1b4b29a0e 100644
--- a/tools/testing/selftests/bpf/prog_tests/snprintf.c
+++ b/tools/testing/selftests/bpf/prog_tests/snprintf.c
@@ -19,7 +19,7 @@
#define EXP_ADDR_OUT "0000000000000000 ffff00000add4e55 "
#define EXP_ADDR_RET sizeof(EXP_ADDR_OUT "unknownhashedptr")
-#define EXP_STR_OUT "str1 longstr"
+#define EXP_STR_OUT "str1 a b c d e longstr"
#define EXP_STR_RET sizeof(EXP_STR_OUT)
#define EXP_OVER_OUT "%over"
@@ -114,6 +114,8 @@ void test_snprintf_negative(void)
ASSERT_ERR(load_single_snprintf("%"), "invalid specifier 3");
ASSERT_ERR(load_single_snprintf("%12345678"), "invalid specifier 4");
ASSERT_ERR(load_single_snprintf("%--------"), "invalid specifier 5");
+ ASSERT_ERR(load_single_snprintf("%lc"), "invalid specifier 6");
+ ASSERT_ERR(load_single_snprintf("%llc"), "invalid specifier 7");
ASSERT_ERR(load_single_snprintf("\x80"), "non ascii character");
ASSERT_ERR(load_single_snprintf("\x1"), "non printable character");
}
diff --git a/tools/testing/selftests/bpf/progs/test_snprintf.c b/tools/testing/selftests/bpf/progs/test_snprintf.c
index e2ad26150f9b..8fda07544023 100644
--- a/tools/testing/selftests/bpf/progs/test_snprintf.c
+++ b/tools/testing/selftests/bpf/progs/test_snprintf.c
@@ -59,9 +59,9 @@ int handler(const void *ctx)
/* Kernel pointers */
addr_ret = BPF_SNPRINTF(addr_out, sizeof(addr_out), "%pK %px %p",
0, 0xFFFF00000ADD4E55, 0xFFFF00000ADD4E55);
- /* Strings embedding */
- str_ret = BPF_SNPRINTF(str_out, sizeof(str_out), "%s %+05s",
- str1, longstr);
+ /* Strings and single-byte character embedding */
+ str_ret = BPF_SNPRINTF(str_out, sizeof(str_out), "%s % 9c %+2c %-3c %04c %0c %+05s",
+ str1, 'a', 'b', 'c', 'd', 'e', longstr);
/* Overflow */
over_ret = BPF_SNPRINTF(over_out, sizeof(over_out), "%%overflow");
/* Padding of fixed width numbers */
--
2.30.2
prev parent reply other threads:[~2021-08-14 1:58 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-14 1:57 [PATCH v6 bpf-next 0/4] BPF iterator for UNIX domain socket Kuniyuki Iwashima
2021-08-14 1:57 ` [PATCH v6 bpf-next 1/4] bpf: af_unix: Implement " Kuniyuki Iwashima
2021-08-14 1:57 ` [PATCH v6 bpf-next 2/4] bpf: Support "%c" in bpf_bprintf_prepare() Kuniyuki Iwashima
2021-08-14 1:57 ` [PATCH v6 bpf-next 3/4] selftest/bpf: Implement sample UNIX domain socket iterator program Kuniyuki Iwashima
2021-08-15 7:21 ` Andrii Nakryiko
2021-08-14 1:57 ` Kuniyuki Iwashima [this message]
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