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selftests/tls: Fix recv(MSG_PEEK) & splice() test cases 

TLS test cases splice_from_pipe, send_and_splice &
recv_peek_multiple_records expect to receive a given nummber of bytes
and then compare them against the number of bytes which were sent.
Therefore, system call recv() must not return before receiving the
requested number of bytes, otherwise the subsequent memcmp() fails.
This patch passes MSG_WAITALL flag to recv() so that it does not return
prematurely before requested number of bytes are copied to receive
buffer.

Signed-off-by: Vakul Garg <vakul.garg@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vakul Garg 2018-09-28 21:48:08 +05:30 committed by David S. Miller
parent e3a9667a5b
commit 0ed3015c99
1 changed files with 10 additions and 10 deletions
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20
tools/testing/selftests/net/tls.c
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@ -288,7 +288,7 @@ TEST_F(tls, splice_from_pipe)
ASSERT_GE(pipe(p), 0);
EXPECT_GE(write(p[1], mem_send, send_len), 0);
EXPECT_GE(splice(p[0], NULL, self->fd, NULL, send_len, 0), 0);
EXPECT_GE(recv(self->cfd, mem_recv, send_len, 0), 0);
EXPECT_EQ(recv(self->cfd, mem_recv, send_len, MSG_WAITALL), send_len);
EXPECT_EQ(memcmp(mem_send, mem_recv, send_len), 0);
}
@ -322,13 +322,13 @@ TEST_F(tls, send_and_splice)
ASSERT_GE(pipe(p), 0);
EXPECT_EQ(send(self->fd, test_str, send_len2, 0), send_len2);
EXPECT_NE(recv(self->cfd, buf, send_len2, 0), -1);
EXPECT_EQ(recv(self->cfd, buf, send_len2, MSG_WAITALL), send_len2);
EXPECT_EQ(memcmp(test_str, buf, send_len2), 0);
EXPECT_GE(write(p[1], mem_send, send_len), send_len);
EXPECT_GE(splice(p[0], NULL, self->fd, NULL, send_len, 0), send_len);
EXPECT_GE(recv(self->cfd, mem_recv, send_len, 0), 0);
EXPECT_EQ(recv(self->cfd, mem_recv, send_len, MSG_WAITALL), send_len);
EXPECT_EQ(memcmp(mem_send, mem_recv, send_len), 0);
}
@ -516,17 +516,17 @@ TEST_F(tls, recv_peek_multiple_records)
len = strlen(test_str_second) + 1;
EXPECT_EQ(send(self->fd, test_str_second, len, 0), len);
len = sizeof(buf);
len = strlen(test_str_first);
memset(buf, 0, len);
EXPECT_NE(recv(self->cfd, buf, len, MSG_PEEK), -1);
EXPECT_EQ(recv(self->cfd, buf, len, MSG_PEEK | MSG_WAITALL), len);
/* MSG_PEEK can only peek into the current record. */
len = strlen(test_str_first) + 1;
len = strlen(test_str_first);
EXPECT_EQ(memcmp(test_str_first, buf, len), 0);
len = sizeof(buf);
len = strlen(test_str) + 1;
memset(buf, 0, len);
EXPECT_NE(recv(self->cfd, buf, len, 0), -1);
EXPECT_EQ(recv(self->cfd, buf, len, MSG_WAITALL), len);
/* Non-MSG_PEEK will advance strparser (and therefore record)
* however.
@ -543,9 +543,9 @@ TEST_F(tls, recv_peek_multiple_records)
len = strlen(test_str_second) + 1;
EXPECT_EQ(send(self->fd, test_str_second, len, 0), len);
len = sizeof(buf);
len = strlen(test_str) + 1;
memset(buf, 0, len);
EXPECT_NE(recv(self->cfd, buf, len, MSG_PEEK), -1);
EXPECT_EQ(recv(self->cfd, buf, len, MSG_PEEK | MSG_WAITALL), len);
len = strlen(test_str) + 1;
EXPECT_EQ(memcmp(test_str, buf, len), 0);