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selftests: tls: add test for merging of same-type control messages

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Two consecutive control messages of the same type should never be
merged into one large received blob of data.

Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Link: https://lore.kernel.org/r/018f1633d5471684c65def5fe390de3b15c3d683.1708007371.git.sd@queasysnail.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Sabrina Dubroca 2024-02-15 17:17:32 +01:00 committed by Jakub Kicinski
parent ec823bf3a4
commit 7b2a4c2a62
1 changed files with 26 additions and 0 deletions
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26
tools/testing/selftests/net/tls.c
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@ -1485,6 +1485,32 @@ TEST_F(tls, control_msg)
EXPECT_EQ(memcmp(buf, test_str, send_len), 0);
}
TEST_F(tls, control_msg_nomerge)
{
char *rec1 = "1111";
char *rec2 = "2222";
int send_len = 5;
char buf[15];
if (self->notls)
SKIP(return, "no TLS support");
EXPECT_EQ(tls_send_cmsg(self->fd, 100, rec1, send_len, 0), send_len);
EXPECT_EQ(tls_send_cmsg(self->fd, 100, rec2, send_len, 0), send_len);
EXPECT_EQ(tls_recv_cmsg(_metadata, self->cfd, 100, buf, sizeof(buf), MSG_PEEK), send_len);
EXPECT_EQ(memcmp(buf, rec1, send_len), 0);
EXPECT_EQ(tls_recv_cmsg(_metadata, self->cfd, 100, buf, sizeof(buf), MSG_PEEK), send_len);
EXPECT_EQ(memcmp(buf, rec1, send_len), 0);
EXPECT_EQ(tls_recv_cmsg(_metadata, self->cfd, 100, buf, sizeof(buf), 0), send_len);
EXPECT_EQ(memcmp(buf, rec1, send_len), 0);
EXPECT_EQ(tls_recv_cmsg(_metadata, self->cfd, 100, buf, sizeof(buf), 0), send_len);
EXPECT_EQ(memcmp(buf, rec2, send_len), 0);
}
TEST_F(tls, shutdown)
{
char const *test_str = "test_read";