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6ab578739a
To capture TX packets during a test, we are currently intercepting the dst->output with an implementation that adds the transmitted packet to a skb queue attached to the test-specific mock dst. The netdev itself is not involved in the test TX path. Instead, we can just use our test device to stash TXed packets for later inspection by the test. This means we can include the actual mctp_dst_output() implementation in the test (by setting dst.output in the test case), and don't need to be creating fake dst objects, or their corresponding skb queues. We need to ensure that the netdev is up to allow delivery to ndo_start_xmit, but the tests assume active devices at present anyway. Signed-off-by: Jeremy Kerr <jk@codeconstruct.com.au> Link: https://patch.msgid.link/20251126-dev-mctp-test-tx-queue-v2-1-4e5bbd1d6c57@codeconstruct.com.au Signed-off-by: Jakub Kicinski <kuba@kernel.org>
75 lines
2.0 KiB
C
75 lines
2.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __NET_MCTP_TEST_UTILS_H
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#define __NET_MCTP_TEST_UTILS_H
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#include <uapi/linux/netdevice.h>
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#include <net/mctp.h>
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#include <net/mctpdevice.h>
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#include <kunit/test.h>
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#define MCTP_DEV_TEST_MTU 68
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struct mctp_test_dev {
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struct net_device *ndev;
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struct mctp_dev *mdev;
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unsigned short lladdr_len;
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unsigned char lladdr[MAX_ADDR_LEN];
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struct sk_buff_head pkts;
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};
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struct mctp_test_dev;
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struct mctp_test_route {
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struct mctp_route rt;
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};
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struct mctp_test_bind_setup {
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mctp_eid_t bind_addr;
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int bind_net;
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u8 bind_type;
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bool have_peer;
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mctp_eid_t peer_addr;
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int peer_net;
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/* optional name. Used for comparison in "lookup" tests */
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const char *name;
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};
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struct mctp_test_dev *mctp_test_create_dev(void);
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struct mctp_test_dev *mctp_test_create_dev_lladdr(unsigned short lladdr_len,
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const unsigned char *lladdr);
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void mctp_test_destroy_dev(struct mctp_test_dev *dev);
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struct mctp_test_route *mctp_test_create_route_direct(struct net *net,
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struct mctp_dev *dev,
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mctp_eid_t eid,
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unsigned int mtu);
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struct mctp_test_route *mctp_test_create_route_gw(struct net *net,
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unsigned int netid,
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mctp_eid_t eid,
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mctp_eid_t gw,
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unsigned int mtu);
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void mctp_test_dst_setup(struct kunit *test, struct mctp_dst *dst,
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struct mctp_test_dev *dev, unsigned int mtu);
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void mctp_test_route_destroy(struct kunit *test, struct mctp_test_route *rt);
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void mctp_test_skb_set_dev(struct sk_buff *skb, struct mctp_test_dev *dev);
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struct sk_buff *mctp_test_create_skb(const struct mctp_hdr *hdr,
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unsigned int data_len);
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struct sk_buff *__mctp_test_create_skb_data(const struct mctp_hdr *hdr,
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const void *data, size_t data_len);
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#define mctp_test_create_skb_data(h, d) \
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__mctp_test_create_skb_data(h, d, sizeof(*d))
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void mctp_test_bind_run(struct kunit *test,
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const struct mctp_test_bind_setup *setup,
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int *ret_bind_errno, struct socket **sock);
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#endif /* __NET_MCTP_TEST_UTILS_H */
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