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mctp: Add route input to socket tests

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Add a few tests for single-packet route inputs, testing the
mctp_route_input function.

Signed-off-by: Jeremy Kerr <jk@codeconstruct.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jeremy Kerr 2021-10-03 11:17:07 +08:00 committed by David S. Miller
parent b504db408c
commit 8892c04907
1 changed files with 132 additions and 0 deletions
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132
net/mctp/test/route-test.c
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@ -100,6 +100,26 @@ static struct sk_buff *mctp_test_create_skb(const struct mctp_hdr *hdr,
return skb;
}
static struct sk_buff *__mctp_test_create_skb_data(const struct mctp_hdr *hdr,
const void *data,
size_t data_len)
{
size_t hdr_len = sizeof(*hdr);
struct sk_buff *skb;
skb = alloc_skb(hdr_len + data_len, GFP_KERNEL);
if (!skb)
return NULL;
memcpy(skb_put(skb, hdr_len), hdr, hdr_len);
memcpy(skb_put(skb, data_len), data, data_len);
return skb;
}
#define mctp_test_create_skb_data(h, d) \
__mctp_test_create_skb_data(h, d, sizeof(*d))
struct mctp_frag_test {
unsigned int mtu;
unsigned int msgsize;
@ -264,9 +284,121 @@ static void mctp_rx_input_test_to_desc(const struct mctp_rx_input_test *t,
KUNIT_ARRAY_PARAM(mctp_rx_input, mctp_rx_input_tests,
mctp_rx_input_test_to_desc);
/* set up a local dev, route on EID 8, and a socket listening on type 0 */
static void __mctp_route_test_init(struct kunit *test,
struct mctp_test_dev **devp,
struct mctp_test_route **rtp,
struct socket **sockp)
{
struct sockaddr_mctp addr;
struct mctp_test_route *rt;
struct mctp_test_dev *dev;
struct socket *sock;
int rc;
dev = mctp_test_create_dev();
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, dev);
rt = mctp_test_create_route(&init_net, dev->mdev, 8, 68);
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, rt);
rc = sock_create_kern(&init_net, AF_MCTP, SOCK_DGRAM, 0, &sock);
KUNIT_ASSERT_EQ(test, rc, 0);
addr.smctp_family = AF_MCTP;
addr.smctp_network = MCTP_NET_ANY;
addr.smctp_addr.s_addr = 8;
addr.smctp_type = 0;
rc = kernel_bind(sock, (struct sockaddr *)&addr, sizeof(addr));
KUNIT_ASSERT_EQ(test, rc, 0);
*rtp = rt;
*devp = dev;
*sockp = sock;
}
static void __mctp_route_test_fini(struct kunit *test,
struct mctp_test_dev *dev,
struct mctp_test_route *rt,
struct socket *sock)
{
sock_release(sock);
mctp_test_route_destroy(test, rt);
mctp_test_destroy_dev(dev);
}
struct mctp_route_input_sk_test {
struct mctp_hdr hdr;
u8 type;
bool deliver;
};
static void mctp_test_route_input_sk(struct kunit *test)
{
const struct mctp_route_input_sk_test *params;
struct sk_buff *skb, *skb2;
struct mctp_test_route *rt;
struct mctp_test_dev *dev;
struct socket *sock;
int rc;
params = test->param_value;
__mctp_route_test_init(test, &dev, &rt, &sock);
skb = mctp_test_create_skb_data(&params->hdr, &params->type);
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, skb);
skb->dev = dev->ndev;
__mctp_cb(skb);
rc = mctp_route_input(&rt->rt, skb);
if (params->deliver) {
KUNIT_EXPECT_EQ(test, rc, 0);
skb2 = skb_recv_datagram(sock->sk, 0, 1, &rc);
KUNIT_EXPECT_NOT_ERR_OR_NULL(test, skb2);
KUNIT_EXPECT_EQ(test, skb->len, 1);
skb_free_datagram(sock->sk, skb2);
} else {
KUNIT_EXPECT_NE(test, rc, 0);
skb2 = skb_recv_datagram(sock->sk, 0, 1, &rc);
KUNIT_EXPECT_PTR_EQ(test, skb2, NULL);
}
__mctp_route_test_fini(test, dev, rt, sock);
}
#define FL_S (MCTP_HDR_FLAG_SOM)
#define FL_E (MCTP_HDR_FLAG_EOM)
#define FL_T (MCTP_HDR_FLAG_TO)
static const struct mctp_route_input_sk_test mctp_route_input_sk_tests[] = {
{ .hdr = RX_HDR(1, 10, 8, FL_S | FL_E | FL_T), .type = 0, .deliver = true },
{ .hdr = RX_HDR(1, 10, 8, FL_S | FL_E | FL_T), .type = 1, .deliver = false },
{ .hdr = RX_HDR(1, 10, 8, FL_S | FL_E), .type = 0, .deliver = false },
{ .hdr = RX_HDR(1, 10, 8, FL_E | FL_T), .type = 0, .deliver = false },
{ .hdr = RX_HDR(1, 10, 8, FL_T), .type = 0, .deliver = false },
{ .hdr = RX_HDR(1, 10, 8, 0), .type = 0, .deliver = false },
};
static void mctp_route_input_sk_to_desc(const struct mctp_route_input_sk_test *t,
char *desc)
{
sprintf(desc, "{%x,%x,%x,%x} type %d", t->hdr.ver, t->hdr.src,
t->hdr.dest, t->hdr.flags_seq_tag, t->type);
}
KUNIT_ARRAY_PARAM(mctp_route_input_sk, mctp_route_input_sk_tests,
mctp_route_input_sk_to_desc);
static struct kunit_case mctp_test_cases[] = {
KUNIT_CASE_PARAM(mctp_test_fragment, mctp_frag_gen_params),
KUNIT_CASE_PARAM(mctp_test_rx_input, mctp_rx_input_gen_params),
KUNIT_CASE_PARAM(mctp_test_route_input_sk, mctp_route_input_sk_gen_params),
{}
};