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selftests/tls: add a test for fragmented messages 

Add a sendmsg test with very fragmented messages. This should
fill up sk_msg and test the boundary conditions.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jakub Kicinski 2019-11-27 12:16:42 -08:00 committed by David S. Miller
parent 031097d9e0
commit 65190f7742
1 changed files with 60 additions and 0 deletions
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60
tools/testing/selftests/net/tls.c
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@ -268,6 +268,38 @@ TEST_F(tls, sendmsg_single)
EXPECT_EQ(memcmp(buf, test_str, send_len), 0);
}
#define MAX_FRAGS 64
#define SEND_LEN 13
TEST_F(tls, sendmsg_fragmented)
{
char const *test_str = "test_sendmsg";
char buf[SEND_LEN * MAX_FRAGS];
struct iovec vec[MAX_FRAGS];
struct msghdr msg;
int i, frags;
for (frags = 1; frags <= MAX_FRAGS; frags++) {
for (i = 0; i < frags; i++) {
vec[i].iov_base = (char *)test_str;
vec[i].iov_len = SEND_LEN;
}
memset(&msg, 0, sizeof(struct msghdr));
msg.msg_iov = vec;
msg.msg_iovlen = frags;
EXPECT_EQ(sendmsg(self->fd, &msg, 0), SEND_LEN * frags);
EXPECT_EQ(recv(self->cfd, buf, SEND_LEN * frags, MSG_WAITALL),
SEND_LEN * frags);
for (i = 0; i < frags; i++)
EXPECT_EQ(memcmp(buf + SEND_LEN * i,
test_str, SEND_LEN), 0);
}
}
#undef MAX_FRAGS
#undef SEND_LEN
TEST_F(tls, sendmsg_large)
{
void *mem = malloc(16384);
@ -694,6 +726,34 @@ TEST_F(tls, recv_lowat)
EXPECT_EQ(memcmp(send_mem, recv_mem + 10, 5), 0);
}
TEST_F(tls, recv_rcvbuf)
{
char send_mem[4096];
char recv_mem[4096];
int rcv_buf = 1024;
memset(send_mem, 0x1c, sizeof(send_mem));
EXPECT_EQ(setsockopt(self->cfd, SOL_SOCKET, SO_RCVBUF,
&rcv_buf, sizeof(rcv_buf)), 0);
EXPECT_EQ(send(self->fd, send_mem, 512, 0), 512);
memset(recv_mem, 0, sizeof(recv_mem));
EXPECT_EQ(recv(self->cfd, recv_mem, sizeof(recv_mem), 0), 512);
EXPECT_EQ(memcmp(send_mem, recv_mem, 512), 0);
if (self->notls)
return;
EXPECT_EQ(send(self->fd, send_mem, 4096, 0), 4096);
memset(recv_mem, 0, sizeof(recv_mem));
EXPECT_EQ(recv(self->cfd, recv_mem, sizeof(recv_mem), 0), -1);
EXPECT_EQ(errno, EMSGSIZE);
EXPECT_EQ(recv(self->cfd, recv_mem, sizeof(recv_mem), 0), -1);
EXPECT_EQ(errno, EMSGSIZE);
}
TEST_F(tls, bidir)
{
char const *test_str = "test_read";