From 4352b8aee98005853aa63f57d6377282de17a33f Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sun, 23 Aug 2026 13:28:57 -0700 Subject: Merge tag 'i3c/for-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux Pull I3C updates from Alexandre Belloni: "A new driver this cycle, for the AMD AXI I3C controller. There are also new features such as IBI wakeup support, SETAASA device discovery and ACPI support for the the DAA methods, meaning we can now communicate with the SPD devices on DDR5 modules. New driver: - AMD AXI I3C master controller Subsystem: - I3C Common Command Code (CCC) handling improvements, especially around GET CCCs - SETAASA device discovery support - ACPI support for all existing DAA methods like SETDASA, SETNEWDA as well as I2C devices on I3C bus - IBI-based wakeup support Drivers: - dw: SETAASA support - mipi-i3c-hci: advertise IBI wakeup capability, AMD_PT I3C controller support, PIO queue management support for HCI v1.2 - renesas: improve suspend to RAM support, add runtime PM support" * tag 'i3c/for-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux: (70 commits) i3c: dw: reduce do_daa time if there's no client i3c: mipi-i3c-hci: Add support for AMD_PT I3C controller i3c: mipi-i3c-hci: Add PIO queue management support for HCI v1.2 i3c: mipi-i3c-hci: Fix missing STAT_IBI_STATUS_THLD in PIO mode i3c: dw: rename "pclk" to "apb" to match dt-binding i3c: dw: make struct dw_i3c_cmd smaller i3c: dw: use COMMAND_PORT_TRANSFER_ARG instead of hardcoding i3c: renesas: Don't register devices when ENTDAA times out i3c: master: dw-i3c-master: fix OD timing for first broadcast i3c: mipi-i3c-hci: Advertise IBI wakeup capability i3c: mipi-i3c-hci: Factor out i3c_hci_sysdev() i3c: mipi-i3c-hci-pci: Propagate I3C wakeup requirements to PCI i3c: master: Reject IBI requests from non-IBI-capable devices i3c: master: Add helper to query bus wakeup requirements i3c: master: Report wakeup events for IBIs i3c: master: Support IBI-based wakeup capability i3c: master: Fix potential UAF in i3c_device_match() i3c: master: Fix potential UAF in i3c_device_uevent() i3c: Make dev->desc locking assumptions explicit i3c: master: Fix use-after-free of master->this ... --- net/mctp/test/route-test.c | 1754 ++++++++++++++++++++++++++++++++++++++++++++ net/mctp/test/sock-test.c | 396 ++++++++++ net/mctp/test/utils.c | 311 ++++++++ net/mctp/test/utils.h | 75 ++ 4 files changed, 2536 insertions(+) create mode 100644 net/mctp/test/route-test.c create mode 100644 net/mctp/test/sock-test.c create mode 100644 net/mctp/test/utils.c create mode 100644 net/mctp/test/utils.h (limited to 'net/mctp/test') diff --git a/net/mctp/test/route-test.c b/net/mctp/test/route-test.c new file mode 100644 index 000000000..c92e3abb4 --- /dev/null +++ b/net/mctp/test/route-test.c @@ -0,0 +1,1754 @@ +// SPDX-License-Identifier: GPL-2.0 + +#include + +/* keep clangd happy when compiled outside of the route.c include */ +#include +#include + +#include "utils.h" + +#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; + unsigned int n_frags; +}; + +static void mctp_test_fragment(struct kunit *test) +{ + const struct mctp_frag_test *params; + int rc, i, n, mtu, msgsize; + struct mctp_test_dev *dev; + struct mctp_dst dst; + struct sk_buff *skb; + struct mctp_hdr hdr; + u8 seq; + + params = test->param_value; + mtu = params->mtu; + msgsize = params->msgsize; + + hdr.ver = 1; + hdr.src = 8; + hdr.dest = 10; + hdr.flags_seq_tag = MCTP_HDR_FLAG_TO; + + skb = mctp_test_create_skb(&hdr, msgsize); + KUNIT_ASSERT_TRUE(test, skb); + + dev = mctp_test_create_dev(); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, dev); + + mctp_test_dst_setup(test, &dst, dev, mtu); + + rc = mctp_do_fragment_route(&dst, skb, mtu, MCTP_TAG_OWNER); + KUNIT_EXPECT_FALSE(test, rc); + + n = dev->pkts.qlen; + KUNIT_EXPECT_EQ(test, n, params->n_frags); + + for (i = 0;; i++) { + struct mctp_hdr *hdr2; + struct sk_buff *skb2; + u8 tag_mask, seq2; + bool first, last; + + first = i == 0; + last = i == (n - 1); + + skb2 = skb_dequeue(&dev->pkts); + if (!skb2) + break; + + /* avoid copying single-skb messages */ + if (first && last) + KUNIT_EXPECT_PTR_EQ(test, skb, skb2); + + hdr2 = mctp_hdr(skb2); + + tag_mask = MCTP_HDR_TAG_MASK | MCTP_HDR_FLAG_TO; + + KUNIT_EXPECT_EQ(test, hdr2->ver, hdr.ver); + KUNIT_EXPECT_EQ(test, hdr2->src, hdr.src); + KUNIT_EXPECT_EQ(test, hdr2->dest, hdr.dest); + KUNIT_EXPECT_EQ(test, hdr2->flags_seq_tag & tag_mask, + hdr.flags_seq_tag & tag_mask); + + KUNIT_EXPECT_EQ(test, + !!(hdr2->flags_seq_tag & MCTP_HDR_FLAG_SOM), first); + KUNIT_EXPECT_EQ(test, + !!(hdr2->flags_seq_tag & MCTP_HDR_FLAG_EOM), last); + + seq2 = (hdr2->flags_seq_tag >> MCTP_HDR_SEQ_SHIFT) & + MCTP_HDR_SEQ_MASK; + + if (first) { + seq = seq2; + } else { + seq++; + KUNIT_EXPECT_EQ(test, seq2, seq & MCTP_HDR_SEQ_MASK); + } + + if (!last) + KUNIT_EXPECT_EQ(test, skb2->len, mtu); + else + KUNIT_EXPECT_LE(test, skb2->len, mtu); + + kfree_skb(skb2); + } + + mctp_dst_release(&dst); + mctp_test_destroy_dev(dev); +} + +static const struct mctp_frag_test mctp_frag_tests[] = { + {.mtu = 68, .msgsize = 63, .n_frags = 1}, + {.mtu = 68, .msgsize = 64, .n_frags = 1}, + {.mtu = 68, .msgsize = 65, .n_frags = 2}, + {.mtu = 68, .msgsize = 66, .n_frags = 2}, + {.mtu = 68, .msgsize = 127, .n_frags = 2}, + {.mtu = 68, .msgsize = 128, .n_frags = 2}, + {.mtu = 68, .msgsize = 129, .n_frags = 3}, + {.mtu = 68, .msgsize = 130, .n_frags = 3}, +}; + +static void mctp_frag_test_to_desc(const struct mctp_frag_test *t, char *desc) +{ + sprintf(desc, "mtu %d len %d -> %d frags", + t->msgsize, t->mtu, t->n_frags); +} + +KUNIT_ARRAY_PARAM(mctp_frag, mctp_frag_tests, mctp_frag_test_to_desc); + +struct mctp_rx_input_test { + struct mctp_hdr hdr; + bool input; +}; + +static void mctp_test_rx_input(struct kunit *test) +{ + const struct mctp_rx_input_test *params; + struct mctp_test_route *rt; + struct mctp_test_dev *dev; + struct sk_buff *skb; + + params = test->param_value; + + dev = mctp_test_create_dev(); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, dev); + + rt = mctp_test_create_route_direct(&init_net, dev->mdev, 8, 68); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, rt); + + skb = mctp_test_create_skb(¶ms->hdr, 1); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, skb); + + mctp_pkttype_receive(skb, dev->ndev, &mctp_packet_type, NULL); + + KUNIT_EXPECT_EQ(test, !!dev->pkts.qlen, params->input); + + mctp_test_route_destroy(test, rt); + mctp_test_destroy_dev(dev); +} + +#define RX_HDR(_ver, _src, _dest, _fst) \ + { .ver = _ver, .src = _src, .dest = _dest, .flags_seq_tag = _fst } + +/* we have a route for EID 8 only */ +static const struct mctp_rx_input_test mctp_rx_input_tests[] = { + { .hdr = RX_HDR(1, 10, 8, 0), .input = true }, + { .hdr = RX_HDR(1, 10, 9, 0), .input = false }, /* no input route */ + { .hdr = RX_HDR(2, 10, 8, 0), .input = false }, /* invalid version */ +}; + +static void mctp_rx_input_test_to_desc(const struct mctp_rx_input_test *t, + char *desc) +{ + sprintf(desc, "{%x,%x,%x,%x}", t->hdr.ver, t->hdr.src, t->hdr.dest, + t->hdr.flags_seq_tag); +} + +KUNIT_ARRAY_PARAM(mctp_rx_input, mctp_rx_input_tests, + mctp_rx_input_test_to_desc); + +/* set up a local dev (with addr 8), 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_dst *dst, + struct socket **sockp, + unsigned int netid) +{ + struct sockaddr_mctp addr = {0}; + struct mctp_test_dev *dev; + struct socket *sock; + int rc; + + dev = mctp_test_create_dev(); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, dev); + if (netid != MCTP_NET_ANY) + WRITE_ONCE(dev->mdev->net, netid); + + dev->mdev->addrs = kmalloc_objs(u8, 1, GFP_KERNEL); + dev->mdev->num_addrs = 1; + dev->mdev->addrs[0] = 8; + + mctp_test_dst_setup(test, dst, dev, 68); + + 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 = netid; + addr.smctp_addr.s_addr = 8; + addr.smctp_type = 0; + rc = kernel_bind(sock, (struct sockaddr_unsized *)&addr, sizeof(addr)); + KUNIT_ASSERT_EQ(test, rc, 0); + + *devp = dev; + *sockp = sock; +} + +static void __mctp_route_test_fini(struct kunit *test, + struct mctp_test_dev *dev, + struct mctp_dst *dst, + struct socket *sock) +{ + sock_release(sock); + mctp_dst_release(dst); + 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_dev *dev; + struct mctp_dst dst; + struct socket *sock; + int rc; + + params = test->param_value; + + __mctp_route_test_init(test, &dev, &dst, &sock, MCTP_NET_ANY); + + skb = mctp_test_create_skb_data(¶ms->hdr, ¶ms->type); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, skb); + + mctp_test_skb_set_dev(skb, dev); + + rc = mctp_dst_input(&dst, skb); + + if (params->deliver) { + KUNIT_EXPECT_EQ(test, rc, 0); + + skb2 = skb_recv_datagram(sock->sk, MSG_DONTWAIT, &rc); + KUNIT_EXPECT_NOT_ERR_OR_NULL(test, skb2); + KUNIT_EXPECT_EQ(test, skb2->len, 1); + + skb_free_datagram(sock->sk, skb2); + + } else { + KUNIT_EXPECT_NE(test, rc, 0); + skb2 = skb_recv_datagram(sock->sk, MSG_DONTWAIT, &rc); + KUNIT_EXPECT_NULL(test, skb2); + } + + __mctp_route_test_fini(test, dev, &dst, sock); +} + +#define FL_S (MCTP_HDR_FLAG_SOM) +#define FL_E (MCTP_HDR_FLAG_EOM) +#define FL_TO (MCTP_HDR_FLAG_TO) +#define FL_T(t) ((t) & MCTP_HDR_TAG_MASK) + +static const struct mctp_route_input_sk_test mctp_route_input_sk_tests[] = { + { .hdr = RX_HDR(1, 10, 8, FL_S | FL_E | FL_TO), .type = 0, .deliver = true }, + { .hdr = RX_HDR(1, 10, 8, FL_S | FL_E | FL_TO), .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_TO), .type = 0, .deliver = false }, + { .hdr = RX_HDR(1, 10, 8, FL_TO), .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); + +struct mctp_route_input_sk_reasm_test { + const char *name; + struct mctp_hdr hdrs[4]; + int n_hdrs; + int rx_len; +}; + +static void mctp_test_route_input_sk_reasm(struct kunit *test) +{ + const struct mctp_route_input_sk_reasm_test *params; + struct sk_buff *skb, *skb2; + struct mctp_test_dev *dev; + struct mctp_dst dst; + struct socket *sock; + int i, rc; + u8 c; + + params = test->param_value; + + __mctp_route_test_init(test, &dev, &dst, &sock, MCTP_NET_ANY); + + for (i = 0; i < params->n_hdrs; i++) { + c = i; + skb = mctp_test_create_skb_data(¶ms->hdrs[i], &c); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, skb); + + mctp_test_skb_set_dev(skb, dev); + + rc = mctp_dst_input(&dst, skb); + } + + skb2 = skb_recv_datagram(sock->sk, MSG_DONTWAIT, &rc); + + if (params->rx_len) { + KUNIT_EXPECT_NOT_ERR_OR_NULL(test, skb2); + KUNIT_EXPECT_EQ(test, skb2->len, params->rx_len); + skb_free_datagram(sock->sk, skb2); + + } else { + KUNIT_EXPECT_NULL(test, skb2); + } + + __mctp_route_test_fini(test, dev, &dst, sock); +} + +#define RX_FRAG(f, s) RX_HDR(1, 10, 8, FL_TO | (f) | ((s) << MCTP_HDR_SEQ_SHIFT)) + +static const struct mctp_route_input_sk_reasm_test mctp_route_input_sk_reasm_tests[] = { + { + .name = "single packet", + .hdrs = { + RX_FRAG(FL_S | FL_E, 0), + }, + .n_hdrs = 1, + .rx_len = 1, + }, + { + .name = "single packet, offset seq", + .hdrs = { + RX_FRAG(FL_S | FL_E, 1), + }, + .n_hdrs = 1, + .rx_len = 1, + }, + { + .name = "start & end packets", + .hdrs = { + RX_FRAG(FL_S, 0), + RX_FRAG(FL_E, 1), + }, + .n_hdrs = 2, + .rx_len = 2, + }, + { + .name = "start & end packets, offset seq", + .hdrs = { + RX_FRAG(FL_S, 1), + RX_FRAG(FL_E, 2), + }, + .n_hdrs = 2, + .rx_len = 2, + }, + { + .name = "start & end packets, out of order", + .hdrs = { + RX_FRAG(FL_E, 1), + RX_FRAG(FL_S, 0), + }, + .n_hdrs = 2, + .rx_len = 0, + }, + { + .name = "start, middle & end packets", + .hdrs = { + RX_FRAG(FL_S, 0), + RX_FRAG(0, 1), + RX_FRAG(FL_E, 2), + }, + .n_hdrs = 3, + .rx_len = 3, + }, + { + .name = "missing seq", + .hdrs = { + RX_FRAG(FL_S, 0), + RX_FRAG(FL_E, 2), + }, + .n_hdrs = 2, + .rx_len = 0, + }, + { + .name = "seq wrap", + .hdrs = { + RX_FRAG(FL_S, 3), + RX_FRAG(FL_E, 0), + }, + .n_hdrs = 2, + .rx_len = 2, + }, +}; + +static void mctp_route_input_sk_reasm_to_desc( + const struct mctp_route_input_sk_reasm_test *t, + char *desc) +{ + sprintf(desc, "%s", t->name); +} + +KUNIT_ARRAY_PARAM(mctp_route_input_sk_reasm, mctp_route_input_sk_reasm_tests, + mctp_route_input_sk_reasm_to_desc); + +struct mctp_route_input_sk_keys_test { + const char *name; + mctp_eid_t key_peer_addr; + mctp_eid_t key_local_addr; + u8 key_tag; + struct mctp_hdr hdr; + bool deliver; +}; + +/* test packet rx in the presence of various key configurations */ +static void mctp_test_route_input_sk_keys(struct kunit *test) +{ + const struct mctp_route_input_sk_keys_test *params; + struct sk_buff *skb, *skb2; + struct mctp_test_dev *dev; + struct mctp_sk_key *key; + struct netns_mctp *mns; + struct mctp_sock *msk; + struct socket *sock; + unsigned long flags; + struct mctp_dst dst; + unsigned int net; + int rc; + u8 c; + + params = test->param_value; + + dev = mctp_test_create_dev(); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, dev); + net = READ_ONCE(dev->mdev->net); + + mctp_test_dst_setup(test, &dst, dev, 68); + + rc = sock_create_kern(&init_net, AF_MCTP, SOCK_DGRAM, 0, &sock); + KUNIT_ASSERT_EQ(test, rc, 0); + + msk = container_of(sock->sk, struct mctp_sock, sk); + mns = &sock_net(sock->sk)->mctp; + + /* set the incoming tag according to test params */ + key = mctp_key_alloc(msk, net, params->key_local_addr, + params->key_peer_addr, params->key_tag, + GFP_KERNEL); + + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, key); + + spin_lock_irqsave(&mns->keys_lock, flags); + mctp_reserve_tag(&init_net, key, msk); + spin_unlock_irqrestore(&mns->keys_lock, flags); + + /* create packet and route */ + c = 0; + skb = mctp_test_create_skb_data(¶ms->hdr, &c); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, skb); + + mctp_test_skb_set_dev(skb, dev); + + rc = mctp_dst_input(&dst, skb); + + /* (potentially) receive message */ + skb2 = skb_recv_datagram(sock->sk, MSG_DONTWAIT, &rc); + + if (params->deliver) + KUNIT_EXPECT_NOT_ERR_OR_NULL(test, skb2); + else + KUNIT_EXPECT_PTR_EQ(test, skb2, NULL); + + if (skb2) + skb_free_datagram(sock->sk, skb2); + + mctp_key_unref(key); + __mctp_route_test_fini(test, dev, &dst, sock); +} + +static const struct mctp_route_input_sk_keys_test mctp_route_input_sk_keys_tests[] = { + { + .name = "direct match", + .key_peer_addr = 9, + .key_local_addr = 8, + .key_tag = 1, + .hdr = RX_HDR(1, 9, 8, FL_S | FL_E | FL_T(1)), + .deliver = true, + }, + { + .name = "flipped src/dest", + .key_peer_addr = 8, + .key_local_addr = 9, + .key_tag = 1, + .hdr = RX_HDR(1, 9, 8, FL_S | FL_E | FL_T(1)), + .deliver = false, + }, + { + .name = "peer addr mismatch", + .key_peer_addr = 9, + .key_local_addr = 8, + .key_tag = 1, + .hdr = RX_HDR(1, 10, 8, FL_S | FL_E | FL_T(1)), + .deliver = false, + }, + { + .name = "tag value mismatch", + .key_peer_addr = 9, + .key_local_addr = 8, + .key_tag = 1, + .hdr = RX_HDR(1, 9, 8, FL_S | FL_E | FL_T(2)), + .deliver = false, + }, + { + .name = "TO mismatch", + .key_peer_addr = 9, + .key_local_addr = 8, + .key_tag = 1, + .hdr = RX_HDR(1, 9, 8, FL_S | FL_E | FL_T(1) | FL_TO), + .deliver = false, + }, + { + .name = "broadcast response", + .key_peer_addr = MCTP_ADDR_ANY, + .key_local_addr = 8, + .key_tag = 1, + .hdr = RX_HDR(1, 11, 8, FL_S | FL_E | FL_T(1)), + .deliver = true, + }, + { + .name = "any local match", + .key_peer_addr = 12, + .key_local_addr = MCTP_ADDR_ANY, + .key_tag = 1, + .hdr = RX_HDR(1, 12, 8, FL_S | FL_E | FL_T(1)), + .deliver = true, + }, +}; + +static void mctp_route_input_sk_keys_to_desc( + const struct mctp_route_input_sk_keys_test *t, + char *desc) +{ + sprintf(desc, "%s", t->name); +} + +KUNIT_ARRAY_PARAM(mctp_route_input_sk_keys, mctp_route_input_sk_keys_tests, + mctp_route_input_sk_keys_to_desc); + +struct test_net { + unsigned int netid; + struct mctp_test_dev *dev; + struct mctp_dst dst; + struct socket *sock; + struct sk_buff *skb; + struct mctp_sk_key *key; + struct { + u8 type; + unsigned int data; + } msg; +}; + +static void +mctp_test_route_input_multiple_nets_bind_init(struct kunit *test, + struct test_net *t) +{ + struct mctp_hdr hdr = RX_HDR(1, 9, 8, FL_S | FL_E | FL_T(1) | FL_TO); + + t->msg.data = t->netid; + + __mctp_route_test_init(test, &t->dev, &t->dst, &t->sock, t->netid); + + t->skb = mctp_test_create_skb_data(&hdr, &t->msg); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, t->skb); + mctp_test_skb_set_dev(t->skb, t->dev); +} + +static void +mctp_test_route_input_multiple_nets_bind_fini(struct kunit *test, + struct test_net *t) +{ + __mctp_route_test_fini(test, t->dev, &t->dst, t->sock); +} + +/* Test that skbs from different nets (otherwise identical) get routed to their + * corresponding socket via the sockets' bind() + */ +static void mctp_test_route_input_multiple_nets_bind(struct kunit *test) +{ + struct sk_buff *rx_skb1, *rx_skb2; + struct test_net t1, t2; + int rc; + + t1.netid = 1; + t2.netid = 2; + + t1.msg.type = 0; + t2.msg.type = 0; + + mctp_test_route_input_multiple_nets_bind_init(test, &t1); + mctp_test_route_input_multiple_nets_bind_init(test, &t2); + + rc = mctp_dst_input(&t1.dst, t1.skb); + KUNIT_ASSERT_EQ(test, rc, 0); + rc = mctp_dst_input(&t2.dst, t2.skb); + KUNIT_ASSERT_EQ(test, rc, 0); + + rx_skb1 = skb_recv_datagram(t1.sock->sk, MSG_DONTWAIT, &rc); + KUNIT_EXPECT_NOT_ERR_OR_NULL(test, rx_skb1); + KUNIT_EXPECT_EQ(test, rx_skb1->len, sizeof(t1.msg)); + KUNIT_EXPECT_EQ(test, + *(unsigned int *)skb_pull(rx_skb1, sizeof(t1.msg.data)), + t1.netid); + kfree_skb(rx_skb1); + + rx_skb2 = skb_recv_datagram(t2.sock->sk, MSG_DONTWAIT, &rc); + KUNIT_EXPECT_NOT_ERR_OR_NULL(test, rx_skb2); + KUNIT_EXPECT_EQ(test, rx_skb2->len, sizeof(t2.msg)); + KUNIT_EXPECT_EQ(test, + *(unsigned int *)skb_pull(rx_skb2, sizeof(t2.msg.data)), + t2.netid); + kfree_skb(rx_skb2); + + mctp_test_route_input_multiple_nets_bind_fini(test, &t1); + mctp_test_route_input_multiple_nets_bind_fini(test, &t2); +} + +static void +mctp_test_route_input_multiple_nets_key_init(struct kunit *test, + struct test_net *t) +{ + struct mctp_hdr hdr = RX_HDR(1, 9, 8, FL_S | FL_E | FL_T(1)); + struct mctp_sock *msk; + struct netns_mctp *mns; + unsigned long flags; + + t->msg.data = t->netid; + + __mctp_route_test_init(test, &t->dev, &t->dst, &t->sock, t->netid); + + msk = container_of(t->sock->sk, struct mctp_sock, sk); + + t->key = mctp_key_alloc(msk, t->netid, hdr.dest, hdr.src, 1, GFP_KERNEL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, t->key); + + mns = &sock_net(t->sock->sk)->mctp; + spin_lock_irqsave(&mns->keys_lock, flags); + mctp_reserve_tag(&init_net, t->key, msk); + spin_unlock_irqrestore(&mns->keys_lock, flags); + + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, t->key); + t->skb = mctp_test_create_skb_data(&hdr, &t->msg); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, t->skb); + mctp_test_skb_set_dev(t->skb, t->dev); +} + +static void +mctp_test_route_input_multiple_nets_key_fini(struct kunit *test, + struct test_net *t) +{ + mctp_key_unref(t->key); + __mctp_route_test_fini(test, t->dev, &t->dst, t->sock); +} + +/* test that skbs from different nets (otherwise identical) get routed to their + * corresponding socket via the sk_key + */ +static void mctp_test_route_input_multiple_nets_key(struct kunit *test) +{ + struct sk_buff *rx_skb1, *rx_skb2; + struct test_net t1, t2; + int rc; + + t1.netid = 1; + t2.netid = 2; + + /* use type 1 which is not bound */ + t1.msg.type = 1; + t2.msg.type = 1; + + mctp_test_route_input_multiple_nets_key_init(test, &t1); + mctp_test_route_input_multiple_nets_key_init(test, &t2); + + rc = mctp_dst_input(&t1.dst, t1.skb); + KUNIT_ASSERT_EQ(test, rc, 0); + rc = mctp_dst_input(&t2.dst, t2.skb); + KUNIT_ASSERT_EQ(test, rc, 0); + + rx_skb1 = skb_recv_datagram(t1.sock->sk, MSG_DONTWAIT, &rc); + KUNIT_EXPECT_NOT_ERR_OR_NULL(test, rx_skb1); + KUNIT_EXPECT_EQ(test, rx_skb1->len, sizeof(t1.msg)); + KUNIT_EXPECT_EQ(test, + *(unsigned int *)skb_pull(rx_skb1, sizeof(t1.msg.data)), + t1.netid); + kfree_skb(rx_skb1); + + rx_skb2 = skb_recv_datagram(t2.sock->sk, MSG_DONTWAIT, &rc); + KUNIT_EXPECT_NOT_ERR_OR_NULL(test, rx_skb2); + KUNIT_EXPECT_EQ(test, rx_skb2->len, sizeof(t2.msg)); + KUNIT_EXPECT_EQ(test, + *(unsigned int *)skb_pull(rx_skb2, sizeof(t2.msg.data)), + t2.netid); + kfree_skb(rx_skb2); + + mctp_test_route_input_multiple_nets_key_fini(test, &t1); + mctp_test_route_input_multiple_nets_key_fini(test, &t2); +} + +/* Input route to socket, using a single-packet message, where sock delivery + * fails. Ensure we're handling the failure appropriately. + */ +static void mctp_test_route_input_sk_fail_single(struct kunit *test) +{ + const struct mctp_hdr hdr = RX_HDR(1, 10, 8, FL_S | FL_E | FL_TO); + struct mctp_test_dev *dev; + struct mctp_dst dst; + struct socket *sock; + struct sk_buff *skb; + int rc; + + __mctp_route_test_init(test, &dev, &dst, &sock, MCTP_NET_ANY); + + /* No rcvbuf space, so delivery should fail. __sock_set_rcvbuf will + * clamp the minimum to SOCK_MIN_RCVBUF, so we open-code this. + */ + lock_sock(sock->sk); + WRITE_ONCE(sock->sk->sk_rcvbuf, 0); + release_sock(sock->sk); + + skb = mctp_test_create_skb(&hdr, 10); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, skb); + skb_get(skb); + + mctp_test_skb_set_dev(skb, dev); + + /* do route input, which should fail */ + rc = mctp_dst_input(&dst, skb); + KUNIT_EXPECT_NE(test, rc, 0); + + /* we should hold the only reference to skb */ + KUNIT_EXPECT_EQ(test, refcount_read(&skb->users), 1); + kfree_skb(skb); + + __mctp_route_test_fini(test, dev, &dst, sock); +} + +/* Input route to socket, using a fragmented message, where sock delivery fails. + */ +static void mctp_test_route_input_sk_fail_frag(struct kunit *test) +{ + const struct mctp_hdr hdrs[2] = { RX_FRAG(FL_S, 0), RX_FRAG(FL_E, 1) }; + struct mctp_test_dev *dev; + struct sk_buff *skbs[2]; + struct mctp_dst dst; + struct socket *sock; + unsigned int i; + int rc; + + __mctp_route_test_init(test, &dev, &dst, &sock, MCTP_NET_ANY); + + lock_sock(sock->sk); + WRITE_ONCE(sock->sk->sk_rcvbuf, 0); + release_sock(sock->sk); + + for (i = 0; i < ARRAY_SIZE(skbs); i++) { + skbs[i] = mctp_test_create_skb(&hdrs[i], 10); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, skbs[i]); + skb_get(skbs[i]); + + mctp_test_skb_set_dev(skbs[i], dev); + } + + /* first route input should succeed, we're only queueing to the + * frag list + */ + rc = mctp_dst_input(&dst, skbs[0]); + KUNIT_EXPECT_EQ(test, rc, 0); + + /* final route input should fail to deliver to the socket */ + rc = mctp_dst_input(&dst, skbs[1]); + KUNIT_EXPECT_NE(test, rc, 0); + + /* we should hold the only reference to both skbs */ + KUNIT_EXPECT_EQ(test, refcount_read(&skbs[0]->users), 1); + kfree_skb(skbs[0]); + + KUNIT_EXPECT_EQ(test, refcount_read(&skbs[1]->users), 1); + kfree_skb(skbs[1]); + + __mctp_route_test_fini(test, dev, &dst, sock); +} + +/* Input route to socket, using a fragmented message created from clones. + */ +static void mctp_test_route_input_cloned_frag(struct kunit *test) +{ + /* 5 packet fragments, forming 2 complete messages */ + const struct mctp_hdr hdrs[5] = { + RX_FRAG(FL_S, 0), + RX_FRAG(0, 1), + RX_FRAG(FL_E, 2), + RX_FRAG(FL_S, 0), + RX_FRAG(FL_E, 1), + }; + const size_t data_len = 3; /* arbitrary */ + u8 compare[3 * ARRAY_SIZE(hdrs)]; + u8 flat[3 * ARRAY_SIZE(hdrs)]; + struct mctp_test_dev *dev; + struct sk_buff *skb[5]; + struct sk_buff *rx_skb; + struct mctp_dst dst; + struct socket *sock; + size_t total; + void *p; + int rc; + + total = data_len + sizeof(struct mctp_hdr); + + __mctp_route_test_init(test, &dev, &dst, &sock, MCTP_NET_ANY); + + /* Create a single skb initially with concatenated packets */ + skb[0] = mctp_test_create_skb(&hdrs[0], 5 * total); + mctp_test_skb_set_dev(skb[0], dev); + memset(skb[0]->data, 0 * 0x11, skb[0]->len); + memcpy(skb[0]->data, &hdrs[0], sizeof(struct mctp_hdr)); + + /* Extract and populate packets */ + for (int i = 1; i < 5; i++) { + skb[i] = skb_clone(skb[i - 1], GFP_ATOMIC); + KUNIT_ASSERT_TRUE(test, skb[i]); + p = skb_pull(skb[i], total); + KUNIT_ASSERT_TRUE(test, p); + skb_reset_network_header(skb[i]); + memcpy(skb[i]->data, &hdrs[i], sizeof(struct mctp_hdr)); + memset(&skb[i]->data[sizeof(struct mctp_hdr)], i * 0x11, data_len); + } + for (int i = 0; i < 5; i++) + skb_trim(skb[i], total); + + /* SOM packets have a type byte to match the socket */ + skb[0]->data[4] = 0; + skb[3]->data[4] = 0; + + for (int i = 0; i < 5; i++) { + KUNIT_EXPECT_EQ(test, refcount_read(&skb[i]->users), 1); + /* Take a reference so we can check refcounts at the end */ + skb_get(skb[i]); + } + + /* Feed the fragments into MCTP core */ + for (int i = 0; i < 5; i++) { + rc = mctp_dst_input(&dst, skb[i]); + KUNIT_EXPECT_EQ(test, rc, 0); + } + + /* Receive first reassembled message */ + rx_skb = skb_recv_datagram(sock->sk, MSG_DONTWAIT, &rc); + KUNIT_EXPECT_EQ(test, rc, 0); + KUNIT_EXPECT_EQ(test, rx_skb->len, 3 * data_len); + rc = skb_copy_bits(rx_skb, 0, flat, rx_skb->len); + for (int i = 0; i < rx_skb->len; i++) + compare[i] = (i / data_len) * 0x11; + /* Set type byte */ + compare[0] = 0; + + KUNIT_EXPECT_MEMEQ(test, flat, compare, rx_skb->len); + KUNIT_EXPECT_EQ(test, refcount_read(&rx_skb->users), 1); + kfree_skb(rx_skb); + + /* Receive second reassembled message */ + rx_skb = skb_recv_datagram(sock->sk, MSG_DONTWAIT, &rc); + KUNIT_EXPECT_EQ(test, rc, 0); + KUNIT_EXPECT_EQ(test, rx_skb->len, 2 * data_len); + rc = skb_copy_bits(rx_skb, 0, flat, rx_skb->len); + for (int i = 0; i < rx_skb->len; i++) + compare[i] = (i / data_len + 3) * 0x11; + /* Set type byte */ + compare[0] = 0; + + KUNIT_EXPECT_MEMEQ(test, flat, compare, rx_skb->len); + KUNIT_EXPECT_EQ(test, refcount_read(&rx_skb->users), 1); + kfree_skb(rx_skb); + + /* Check input skb refcounts */ + for (int i = 0; i < 5; i++) { + KUNIT_EXPECT_EQ(test, refcount_read(&skb[i]->users), 1); + kfree_skb(skb[i]); + } + + __mctp_route_test_fini(test, dev, &dst, sock); +} + +/* check we can receive an incoming packet with the null EID as daddr, when + * no RTN_LOCAL routes are present. + */ +static void mctp_test_route_input_null_eid(struct kunit *test) +{ + struct mctp_hdr hdr = RX_HDR(1, 10, 0, FL_S | FL_E | FL_TO); + struct sockaddr_mctp addr = { 0 }; + struct sk_buff *skb_pkt, *skb_sk; + struct mctp_test_dev *dev; + struct socket *sock; + u8 type = 0; + int rc; + + dev = mctp_test_create_dev(); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, dev); + + 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 = MCTP_ADDR_ANY; + addr.smctp_type = type; + rc = kernel_bind(sock, (struct sockaddr_unsized *)&addr, sizeof(addr)); + KUNIT_ASSERT_EQ(test, rc, 0); + + skb_pkt = mctp_test_create_skb_data(&hdr, &type); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, skb_pkt); + + skb_pkt->dev = dev->ndev; + skb_pkt->pkt_type = PACKET_HOST; + + mctp_pkttype_receive(skb_pkt, dev->ndev, &mctp_packet_type, NULL); + + skb_sk = skb_recv_datagram(sock->sk, MSG_DONTWAIT, &rc); + KUNIT_EXPECT_NOT_ERR_OR_NULL(test, skb_sk); + + skb_free_datagram(sock->sk, skb_sk); + sock_release(sock); + mctp_test_destroy_dev(dev); +} + +#if IS_ENABLED(CONFIG_MCTP_FLOWS) + +static void mctp_test_flow_init(struct kunit *test, + struct mctp_test_dev **devp, + struct mctp_dst *dst, + struct socket **sock, + struct sk_buff **skbp, + unsigned int len) +{ + struct mctp_test_dev *dev; + struct sk_buff *skb; + + /* we have a slightly odd routing setup here; the test route + * is for EID 8, which is our local EID. We don't do a routing + * lookup, so that's fine - all we require is a path through + * mctp_local_output, which will call dst->output on whatever + * route we provide + */ + __mctp_route_test_init(test, &dev, dst, sock, MCTP_NET_ANY); + + skb = alloc_skb(len + sizeof(struct mctp_hdr) + 1, GFP_KERNEL); + KUNIT_ASSERT_TRUE(test, skb); + __mctp_cb(skb); + skb_reserve(skb, sizeof(struct mctp_hdr) + 1); + memset(skb_put(skb, len), 0, len); + + + *devp = dev; + *skbp = skb; +} + +static void mctp_test_flow_fini(struct kunit *test, + struct mctp_test_dev *dev, + struct mctp_dst *dst, + struct socket *sock) +{ + __mctp_route_test_fini(test, dev, dst, sock); +} + +/* test that an outgoing skb has the correct MCTP extension data set */ +static void mctp_test_packet_flow(struct kunit *test) +{ + struct sk_buff *skb, *skb2; + struct mctp_test_dev *dev; + struct mctp_dst dst; + struct mctp_flow *flow; + struct socket *sock; + u8 dst_eid = 8; + int n, rc; + + mctp_test_flow_init(test, &dev, &dst, &sock, &skb, 30); + + rc = mctp_local_output(sock->sk, &dst, skb, dst_eid, MCTP_TAG_OWNER); + KUNIT_ASSERT_EQ(test, rc, 0); + + n = dev->pkts.qlen; + KUNIT_ASSERT_EQ(test, n, 1); + + skb2 = skb_dequeue(&dev->pkts); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, skb2); + + flow = skb_ext_find(skb2, SKB_EXT_MCTP); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, flow); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, flow->key); + KUNIT_ASSERT_PTR_EQ(test, flow->key->sk, sock->sk); + + kfree_skb(skb2); + mctp_test_flow_fini(test, dev, &dst, sock); +} + +/* test that outgoing skbs, after fragmentation, all have the correct MCTP + * extension data set. + */ +static void mctp_test_fragment_flow(struct kunit *test) +{ + struct mctp_flow *flows[2]; + struct sk_buff *tx_skbs[2]; + struct mctp_test_dev *dev; + struct mctp_dst dst; + struct sk_buff *skb; + struct socket *sock; + u8 dst_eid = 8; + int n, rc; + + mctp_test_flow_init(test, &dev, &dst, &sock, &skb, 100); + + rc = mctp_local_output(sock->sk, &dst, skb, dst_eid, MCTP_TAG_OWNER); + KUNIT_ASSERT_EQ(test, rc, 0); + + n = dev->pkts.qlen; + KUNIT_ASSERT_EQ(test, n, 2); + + /* both resulting packets should have the same flow data */ + tx_skbs[0] = skb_dequeue(&dev->pkts); + tx_skbs[1] = skb_dequeue(&dev->pkts); + + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, tx_skbs[0]); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, tx_skbs[1]); + + flows[0] = skb_ext_find(tx_skbs[0], SKB_EXT_MCTP); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, flows[0]); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, flows[0]->key); + KUNIT_ASSERT_PTR_EQ(test, flows[0]->key->sk, sock->sk); + + flows[1] = skb_ext_find(tx_skbs[1], SKB_EXT_MCTP); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, flows[1]); + KUNIT_ASSERT_PTR_EQ(test, flows[1]->key, flows[0]->key); + + kfree_skb(tx_skbs[0]); + kfree_skb(tx_skbs[1]); + mctp_test_flow_fini(test, dev, &dst, sock); +} + +#else +static void mctp_test_packet_flow(struct kunit *test) +{ + kunit_skip(test, "Requires CONFIG_MCTP_FLOWS=y"); +} + +static void mctp_test_fragment_flow(struct kunit *test) +{ + kunit_skip(test, "Requires CONFIG_MCTP_FLOWS=y"); +} +#endif + +/* Test that outgoing skbs cause a suitable tag to be created */ +static void mctp_test_route_output_key_create(struct kunit *test) +{ + const u8 dst_eid = 26, src_eid = 15; + const unsigned int netid = 50; + struct mctp_test_dev *dev; + struct mctp_sk_key *key; + struct netns_mctp *mns; + unsigned long flags; + struct socket *sock; + struct sk_buff *skb; + struct mctp_dst dst; + bool empty, single; + const int len = 2; + int rc; + + dev = mctp_test_create_dev(); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, dev); + WRITE_ONCE(dev->mdev->net, netid); + + rc = sock_create_kern(&init_net, AF_MCTP, SOCK_DGRAM, 0, &sock); + KUNIT_ASSERT_EQ(test, rc, 0); + + dev->mdev->addrs = kmalloc(sizeof(u8), GFP_KERNEL); + dev->mdev->num_addrs = 1; + dev->mdev->addrs[0] = src_eid; + + mctp_test_dst_setup(test, &dst, dev, 68); + + skb = alloc_skb(sizeof(struct mctp_hdr) + 1 + len, GFP_KERNEL); + KUNIT_ASSERT_TRUE(test, skb); + __mctp_cb(skb); + skb_reserve(skb, sizeof(struct mctp_hdr) + 1 + len); + memset(skb_put(skb, len), 0, len); + + mns = &sock_net(sock->sk)->mctp; + + /* We assume we're starting from an empty keys list, which requires + * preceding tests to clean up correctly! + */ + spin_lock_irqsave(&mns->keys_lock, flags); + empty = hlist_empty(&mns->keys); + spin_unlock_irqrestore(&mns->keys_lock, flags); + KUNIT_ASSERT_TRUE(test, empty); + + rc = mctp_local_output(sock->sk, &dst, skb, dst_eid, MCTP_TAG_OWNER); + KUNIT_ASSERT_EQ(test, rc, 0); + + key = NULL; + single = false; + spin_lock_irqsave(&mns->keys_lock, flags); + if (!hlist_empty(&mns->keys)) { + key = hlist_entry(mns->keys.first, struct mctp_sk_key, hlist); + single = hlist_is_singular_node(&key->hlist, &mns->keys); + } + spin_unlock_irqrestore(&mns->keys_lock, flags); + + KUNIT_ASSERT_NOT_NULL(test, key); + KUNIT_ASSERT_TRUE(test, single); + + KUNIT_EXPECT_EQ(test, key->net, netid); + KUNIT_EXPECT_EQ(test, key->local_addr, src_eid); + KUNIT_EXPECT_EQ(test, key->peer_addr, dst_eid); + /* key has incoming tag, so inverse of what we sent */ + KUNIT_EXPECT_FALSE(test, key->tag & MCTP_TAG_OWNER); + + sock_release(sock); + mctp_dst_release(&dst); + mctp_test_destroy_dev(dev); +} + +static void mctp_test_route_extaddr_input(struct kunit *test) +{ + static const unsigned char haddr[] = { 0xaa, 0x55 }; + struct mctp_skb_cb *cb, *cb2; + const unsigned int len = 40; + struct mctp_test_dev *dev; + struct sk_buff *skb, *skb2; + struct mctp_dst dst; + struct mctp_hdr hdr; + struct socket *sock; + int rc; + + hdr.ver = 1; + hdr.src = 10; + hdr.dest = 8; + hdr.flags_seq_tag = FL_S | FL_E | FL_TO; + + __mctp_route_test_init(test, &dev, &dst, &sock, MCTP_NET_ANY); + + skb = mctp_test_create_skb(&hdr, len); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, skb); + + /* set our hardware addressing data */ + cb = mctp_cb(skb); + memcpy(cb->haddr, haddr, sizeof(haddr)); + cb->halen = sizeof(haddr); + + mctp_test_skb_set_dev(skb, dev); + + rc = mctp_dst_input(&dst, skb); + KUNIT_ASSERT_EQ(test, rc, 0); + + skb2 = skb_recv_datagram(sock->sk, MSG_DONTWAIT, &rc); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, skb2); + KUNIT_ASSERT_EQ(test, skb2->len, len); + + cb2 = mctp_cb(skb2); + + /* Received SKB should have the hardware addressing as set above. + * We're likely to have the same actual cb here (ie., cb == cb2), + * but it's the comparison that we care about + */ + KUNIT_EXPECT_EQ(test, cb2->halen, sizeof(haddr)); + KUNIT_EXPECT_MEMEQ(test, cb2->haddr, haddr, sizeof(haddr)); + + kfree_skb(skb2); + __mctp_route_test_fini(test, dev, &dst, sock); +} + +static void mctp_test_route_gw_lookup(struct kunit *test) +{ + struct mctp_test_route *rt1, *rt2; + struct mctp_dst dst = { 0 }; + struct mctp_test_dev *dev; + int rc; + + dev = mctp_test_create_dev_with_addr(8); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, dev); + + /* 8 (local) -> 10 (gateway) via 9 (direct) */ + rt1 = mctp_test_create_route_direct(&init_net, dev->mdev, 9, 0); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, rt1); + rt2 = mctp_test_create_route_gw(&init_net, dev->mdev->net, 10, 9, 0); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, rt2); + + rc = mctp_route_lookup(&init_net, dev->mdev->net, 10, &dst); + KUNIT_EXPECT_EQ(test, rc, 0); + KUNIT_EXPECT_PTR_EQ(test, dst.dev, dev->mdev); + KUNIT_EXPECT_EQ(test, dst.mtu, dev->ndev->mtu); + KUNIT_EXPECT_EQ(test, dst.nexthop, 9); + KUNIT_EXPECT_EQ(test, dst.halen, 0); + + mctp_dst_release(&dst); + + mctp_test_route_destroy(test, rt2); + mctp_test_route_destroy(test, rt1); + mctp_test_destroy_dev(dev); +} + +static void mctp_test_route_gw_loop(struct kunit *test) +{ + struct mctp_test_route *rt1, *rt2; + struct mctp_dst dst = { 0 }; + struct mctp_test_dev *dev; + int rc; + + dev = mctp_test_create_dev_with_addr(8); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, dev); + + /* two routes using each other as the gw */ + rt1 = mctp_test_create_route_gw(&init_net, dev->mdev->net, 9, 10, 0); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, rt1); + rt2 = mctp_test_create_route_gw(&init_net, dev->mdev->net, 10, 9, 0); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, rt2); + + /* this should fail, rather than infinite-loop */ + rc = mctp_route_lookup(&init_net, dev->mdev->net, 10, &dst); + KUNIT_EXPECT_NE(test, rc, 0); + + mctp_test_route_destroy(test, rt2); + mctp_test_route_destroy(test, rt1); + mctp_test_destroy_dev(dev); +} + +struct mctp_route_gw_mtu_test { + /* working away from the local stack */ + unsigned int dev, neigh, gw, dst; + unsigned int exp; +}; + +static void mctp_route_gw_mtu_to_desc(const struct mctp_route_gw_mtu_test *t, + char *desc) +{ + sprintf(desc, "dev %d, neigh %d, gw %d, dst %d -> %d", + t->dev, t->neigh, t->gw, t->dst, t->exp); +} + +static const struct mctp_route_gw_mtu_test mctp_route_gw_mtu_tests[] = { + /* no route-specific MTUs */ + { 68, 0, 0, 0, 68 }, + { 100, 0, 0, 0, 100 }, + /* one route MTU (smaller than dev mtu), others unrestricted */ + { 100, 68, 0, 0, 68 }, + { 100, 0, 68, 0, 68 }, + { 100, 0, 0, 68, 68 }, + /* smallest applied, regardless of order */ + { 100, 99, 98, 68, 68 }, + { 99, 100, 98, 68, 68 }, + { 98, 99, 100, 68, 68 }, + { 68, 98, 99, 100, 68 }, +}; + +KUNIT_ARRAY_PARAM(mctp_route_gw_mtu, mctp_route_gw_mtu_tests, + mctp_route_gw_mtu_to_desc); + +static void mctp_test_route_gw_mtu(struct kunit *test) +{ + const struct mctp_route_gw_mtu_test *mtus = test->param_value; + struct mctp_test_route *rt1, *rt2, *rt3; + struct mctp_dst dst = { 0 }; + struct mctp_test_dev *dev; + struct mctp_dev *mdev; + unsigned int netid; + int rc; + + dev = mctp_test_create_dev_with_addr(8); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, dev); + dev->ndev->mtu = mtus->dev; + mdev = dev->mdev; + netid = mdev->net; + + /* 8 (local) -> 11 (dst) via 10 (gw) via 9 (neigh) */ + rt1 = mctp_test_create_route_direct(&init_net, mdev, 9, mtus->neigh); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, rt1); + + rt2 = mctp_test_create_route_gw(&init_net, netid, 10, 9, mtus->gw); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, rt2); + + rt3 = mctp_test_create_route_gw(&init_net, netid, 11, 10, mtus->dst); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, rt3); + + rc = mctp_route_lookup(&init_net, dev->mdev->net, 11, &dst); + KUNIT_EXPECT_EQ(test, rc, 0); + KUNIT_EXPECT_EQ(test, dst.mtu, mtus->exp); + + mctp_dst_release(&dst); + + mctp_test_route_destroy(test, rt3); + mctp_test_route_destroy(test, rt2); + mctp_test_route_destroy(test, rt1); + mctp_test_destroy_dev(dev); +} + +#define MCTP_TEST_LLADDR_LEN 2 +struct mctp_test_llhdr { + unsigned int magic; + unsigned char src[MCTP_TEST_LLADDR_LEN]; + unsigned char dst[MCTP_TEST_LLADDR_LEN]; +}; + +static const unsigned int mctp_test_llhdr_magic = 0x5c78339c; + +static int test_dev_header_create(struct sk_buff *skb, struct net_device *dev, + unsigned short type, const void *daddr, + const void *saddr, unsigned int len) +{ + struct kunit *test = current->kunit_test; + struct mctp_test_llhdr *hdr; + + hdr = skb_push(skb, sizeof(*hdr)); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, hdr); + skb_reset_mac_header(skb); + + hdr->magic = mctp_test_llhdr_magic; + memcpy(&hdr->src, saddr, sizeof(hdr->src)); + memcpy(&hdr->dst, daddr, sizeof(hdr->dst)); + + return 0; +} + +/* Test the dst_output path for a gateway-routed skb: we should have it + * lookup the nexthop EID in the neighbour table, and call into + * header_ops->create to resolve that to a lladdr. Our mock header_ops->create + * will just set a synthetic link-layer header, which we check after transmit. + */ +static void mctp_test_route_gw_output(struct kunit *test) +{ + const unsigned char haddr_self[MCTP_TEST_LLADDR_LEN] = { 0xaa, 0x03 }; + const unsigned char haddr_peer[MCTP_TEST_LLADDR_LEN] = { 0xaa, 0x02 }; + const struct header_ops ops = { + .create = test_dev_header_create, + }; + struct mctp_neigh neigh = { 0 }; + struct mctp_test_llhdr *ll_hdr; + struct mctp_dst dst = { 0 }; + struct mctp_hdr hdr = { 0 }; + struct mctp_test_dev *dev; + struct sk_buff *skb; + unsigned char *buf; + int i, rc; + + dev = mctp_test_create_dev_lladdr(sizeof(haddr_self), haddr_self); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, dev); + dev->ndev->header_ops = &ops; + + dst.dev = dev->mdev; + __mctp_dev_get(dst.dev->dev); + dst.mtu = 68; + dst.nexthop = 9; + + /* simple mctp_neigh_add for the gateway (not dest!) endpoint */ + INIT_LIST_HEAD(&neigh.list); + neigh.dev = dev->mdev; + mctp_dev_hold(dev->mdev); + neigh.eid = 9; + neigh.source = MCTP_NEIGH_STATIC; + memcpy(neigh.ha, haddr_peer, sizeof(haddr_peer)); + list_add_rcu(&neigh.list, &init_net.mctp.neighbours); + + hdr.ver = 1; + hdr.src = 8; + hdr.dest = 10; + hdr.flags_seq_tag = FL_S | FL_E | FL_TO; + + /* construct enough for a future link-layer header, the provided + * mctp header, and 4 bytes of data + */ + skb = alloc_skb(sizeof(*ll_hdr) + sizeof(hdr) + 4, GFP_KERNEL); + skb->dev = dev->ndev; + __mctp_cb(skb); + + skb_reserve(skb, sizeof(*ll_hdr)); + + memcpy(skb_put(skb, sizeof(hdr)), &hdr, sizeof(hdr)); + buf = skb_put(skb, 4); + for (i = 0; i < 4; i++) + buf[i] = i; + + /* extra ref over the dev_xmit */ + skb_get(skb); + + rc = mctp_dst_output(&dst, skb); + KUNIT_EXPECT_EQ(test, rc, 0); + + mctp_dst_release(&dst); + list_del_rcu(&neigh.list); + mctp_dev_put(dev->mdev); + + /* check that we have our header created with the correct neighbour */ + ll_hdr = (void *)skb_mac_header(skb); + KUNIT_EXPECT_EQ(test, ll_hdr->magic, mctp_test_llhdr_magic); + KUNIT_EXPECT_MEMEQ(test, ll_hdr->src, haddr_self, sizeof(haddr_self)); + KUNIT_EXPECT_MEMEQ(test, ll_hdr->dst, haddr_peer, sizeof(haddr_peer)); + kfree_skb(skb); +} + +struct mctp_bind_lookup_test { + /* header of incoming message */ + struct mctp_hdr hdr; + u8 ty; + /* mctp network of incoming interface (smctp_network) */ + unsigned int net; + + /* expected socket, matches .name in lookup_binds, NULL for dropped */ + const char *expect; +}; + +/* Single-packet TO-set message */ +#define LK(src, dst) RX_HDR(1, (src), (dst), FL_S | FL_E | FL_TO) + +/* Input message test cases for bind lookup tests. + * + * 10 and 11 are local EIDs. + * 20 and 21 are remote EIDs. + */ +static const struct mctp_bind_lookup_test mctp_bind_lookup_tests[] = { + /* both local-eid and remote-eid binds, remote eid is preferenced */ + { .hdr = LK(20, 10), .ty = 1, .net = 1, .expect = "remote20" }, + + { .hdr = LK(20, 255), .ty = 1, .net = 1, .expect = "remote20" }, + { .hdr = LK(20, 0), .ty = 1, .net = 1, .expect = "remote20" }, + { .hdr = LK(0, 255), .ty = 1, .net = 1, .expect = "any" }, + { .hdr = LK(0, 11), .ty = 1, .net = 1, .expect = "any" }, + { .hdr = LK(0, 0), .ty = 1, .net = 1, .expect = "any" }, + { .hdr = LK(0, 10), .ty = 1, .net = 1, .expect = "local10" }, + { .hdr = LK(21, 10), .ty = 1, .net = 1, .expect = "local10" }, + { .hdr = LK(21, 11), .ty = 1, .net = 1, .expect = "remote21local11" }, + + /* both src and dest set to eid=99. unusual, but accepted + * by MCTP stack currently. + */ + { .hdr = LK(99, 99), .ty = 1, .net = 1, .expect = "any" }, + + /* unbound smctp_type */ + { .hdr = LK(20, 10), .ty = 3, .net = 1, .expect = NULL }, + + /* smctp_network tests */ + + { .hdr = LK(0, 0), .ty = 1, .net = 7, .expect = "any" }, + { .hdr = LK(21, 10), .ty = 1, .net = 2, .expect = "any" }, + + /* remote EID 20 matches, but MCTP_NET_ANY in "remote20" resolved + * to net=1, so lookup doesn't match "remote20" + */ + { .hdr = LK(20, 10), .ty = 1, .net = 3, .expect = "any" }, + + { .hdr = LK(21, 10), .ty = 1, .net = 3, .expect = "remote21net3" }, + { .hdr = LK(21, 10), .ty = 1, .net = 4, .expect = "remote21net4" }, + { .hdr = LK(21, 10), .ty = 1, .net = 5, .expect = "remote21net5" }, + + { .hdr = LK(21, 10), .ty = 1, .net = 5, .expect = "remote21net5" }, + + { .hdr = LK(99, 10), .ty = 1, .net = 8, .expect = "local10net8" }, + + { .hdr = LK(99, 10), .ty = 1, .net = 9, .expect = "anynet9" }, + { .hdr = LK(0, 0), .ty = 1, .net = 9, .expect = "anynet9" }, + { .hdr = LK(99, 99), .ty = 1, .net = 9, .expect = "anynet9" }, + { .hdr = LK(20, 10), .ty = 1, .net = 9, .expect = "anynet9" }, +}; + +/* Binds to create during the lookup tests */ +static const struct mctp_test_bind_setup lookup_binds[] = { + /* any address and net, type 1 */ + { .name = "any", .bind_addr = MCTP_ADDR_ANY, + .bind_net = MCTP_NET_ANY, .bind_type = 1, }, + /* local eid 10, net 1 (resolved from MCTP_NET_ANY) */ + { .name = "local10", .bind_addr = 10, + .bind_net = MCTP_NET_ANY, .bind_type = 1, }, + /* local eid 10, net 8 */ + { .name = "local10net8", .bind_addr = 10, + .bind_net = 8, .bind_type = 1, }, + /* any EID, net 9 */ + { .name = "anynet9", .bind_addr = MCTP_ADDR_ANY, + .bind_net = 9, .bind_type = 1, }, + + /* remote eid 20, net 1, any local eid */ + { .name = "remote20", .bind_addr = MCTP_ADDR_ANY, + .bind_net = MCTP_NET_ANY, .bind_type = 1, + .have_peer = true, .peer_addr = 20, .peer_net = MCTP_NET_ANY, }, + + /* remote eid 20, net 1, local eid 11 */ + { .name = "remote21local11", .bind_addr = 11, + .bind_net = MCTP_NET_ANY, .bind_type = 1, + .have_peer = true, .peer_addr = 21, .peer_net = MCTP_NET_ANY, }, + + /* remote eid 21, specific net=3 for connect() */ + { .name = "remote21net3", .bind_addr = MCTP_ADDR_ANY, + .bind_net = MCTP_NET_ANY, .bind_type = 1, + .have_peer = true, .peer_addr = 21, .peer_net = 3, }, + + /* remote eid 21, net 4 for bind, specific net=4 for connect() */ + { .name = "remote21net4", .bind_addr = MCTP_ADDR_ANY, + .bind_net = 4, .bind_type = 1, + .have_peer = true, .peer_addr = 21, .peer_net = 4, }, + + /* remote eid 21, net 5 for bind, specific net=5 for connect() */ + { .name = "remote21net5", .bind_addr = MCTP_ADDR_ANY, + .bind_net = 5, .bind_type = 1, + .have_peer = true, .peer_addr = 21, .peer_net = 5, }, +}; + +static void mctp_bind_lookup_desc(const struct mctp_bind_lookup_test *t, + char *desc) +{ + snprintf(desc, KUNIT_PARAM_DESC_SIZE, + "{src %d dst %d ty %d net %d expect %s}", + t->hdr.src, t->hdr.dest, t->ty, t->net, t->expect); +} + +KUNIT_ARRAY_PARAM(mctp_bind_lookup, mctp_bind_lookup_tests, + mctp_bind_lookup_desc); + +static void mctp_test_bind_lookup(struct kunit *test) +{ + const struct mctp_bind_lookup_test *rx; + struct socket *socks[ARRAY_SIZE(lookup_binds)]; + struct sk_buff *skb_pkt = NULL, *skb_sock = NULL; + struct socket *sock_ty0, *sock_expect = NULL; + struct mctp_test_dev *dev; + struct mctp_dst dst; + int rc; + + rx = test->param_value; + + __mctp_route_test_init(test, &dev, &dst, &sock_ty0, rx->net); + /* Create all binds */ + for (size_t i = 0; i < ARRAY_SIZE(lookup_binds); i++) { + mctp_test_bind_run(test, &lookup_binds[i], + &rc, &socks[i]); + KUNIT_ASSERT_EQ(test, rc, 0); + + /* Record the expected receive socket */ + if (rx->expect && + strcmp(rx->expect, lookup_binds[i].name) == 0) { + KUNIT_ASSERT_NULL(test, sock_expect); + sock_expect = socks[i]; + } + } + KUNIT_ASSERT_EQ(test, !!sock_expect, !!rx->expect); + + /* Create test message */ + skb_pkt = mctp_test_create_skb_data(&rx->hdr, &rx->ty); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, skb_pkt); + mctp_test_skb_set_dev(skb_pkt, dev); + + rc = mctp_dst_input(&dst, skb_pkt); + if (rx->expect) { + /* Test the message is received on the expected socket */ + KUNIT_EXPECT_EQ(test, rc, 0); + skb_sock = skb_recv_datagram(sock_expect->sk, + MSG_DONTWAIT, &rc); + if (!skb_sock) { + /* Find which socket received it instead */ + for (size_t i = 0; i < ARRAY_SIZE(lookup_binds); i++) { + skb_sock = skb_recv_datagram(socks[i]->sk, + MSG_DONTWAIT, &rc); + if (skb_sock) { + KUNIT_FAIL(test, + "received on incorrect socket '%s', expect '%s'", + lookup_binds[i].name, + rx->expect); + goto cleanup; + } + } + KUNIT_FAIL(test, "no message received"); + } + } else { + KUNIT_EXPECT_NE(test, rc, 0); + } + +cleanup: + kfree_skb(skb_sock); + + /* Drop all binds */ + for (size_t i = 0; i < ARRAY_SIZE(lookup_binds); i++) + sock_release(socks[i]); + + __mctp_route_test_fini(test, dev, &dst, sock_ty0); +} + +static void mctp_test_route_output_direct_no_eids(struct kunit *test) +{ + struct mctp_dst dst = { 0 }; + struct sk_buff *skb, *skb2; + struct mctp_test_route *rt; + struct mctp_test_dev *dev; + struct socket *sock; + const int len = 2; + int rc; + + dev = mctp_test_create_dev(); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, dev); + + rt = mctp_test_create_route_direct(&init_net, dev->mdev, 9, 68); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, rt); + + rc = mctp_route_lookup(&init_net, dev->mdev->net, 9, &dst); + KUNIT_ASSERT_EQ(test, rc, 0); + + rc = sock_create_kern(&init_net, AF_MCTP, SOCK_DGRAM, 0, &sock); + KUNIT_ASSERT_EQ(test, rc, 0); + + skb = alloc_skb(sizeof(struct mctp_hdr) + 1 + len, GFP_KERNEL); + KUNIT_ASSERT_TRUE(test, skb); + __mctp_cb(skb); + skb_reserve(skb, sizeof(struct mctp_hdr) + 1 + len); + memset(skb_put(skb, len), 0, len); + + rc = mctp_local_output(sock->sk, &dst, skb, 9, MCTP_TAG_OWNER); + KUNIT_ASSERT_EQ(test, rc, 0); + + KUNIT_ASSERT_EQ(test, dev->pkts.qlen, 1); + + skb2 = skb_dequeue(&dev->pkts); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, skb2); + + kfree_skb(skb2); + sock_release(sock); + mctp_dst_release(&dst); + mctp_test_route_destroy(test, rt); + mctp_test_destroy_dev(dev); +} + +static void mctp_test_route_output_gw_no_eids(struct kunit *test) +{ + struct mctp_test_route *rt1, *rt2; + struct mctp_test_dev *dev; + struct mctp_dst dst = { 0 }; + int rc; + + dev = mctp_test_create_dev(); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, dev); + + /* route: direct to bridge */ + rt1 = mctp_test_create_route_direct(&init_net, dev->mdev, 9, 68); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, rt1); + + /* route: bridge gw to final dest */ + rt2 = mctp_test_create_route_gw(&init_net, dev->mdev->net, 10, 9, 0); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, rt2); + + /* route lookup should fail, due to no source address on dev */ + rc = mctp_route_lookup(&init_net, dev->mdev->net, 10, &dst); + KUNIT_ASSERT_NE(test, rc, 0); + + mctp_test_route_destroy(test, rt1); + mctp_test_route_destroy(test, rt2); + mctp_test_destroy_dev(dev); +} + +static void mctp_test_route_output_extaddr_no_eids(struct kunit *test) +{ + struct mctp_dst dst = { 0 }; + struct sk_buff *skb, *skb2; + struct mctp_test_dev *dev; + struct socket *sock; + const int len = 1; + struct net *net; + int rc; + + dev = mctp_test_create_dev(); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, dev); + + net = dev_net(dev->ndev); + + rc = mctp_dst_from_extaddr(&dst, net, dev->ndev->ifindex, 0, NULL); + KUNIT_ASSERT_EQ(test, rc, 0); + + rc = sock_create_kern(net, AF_MCTP, SOCK_DGRAM, 0, &sock); + KUNIT_ASSERT_EQ(test, rc, 0); + + skb = alloc_skb(sizeof(struct mctp_hdr) + 1 + len, GFP_KERNEL); + KUNIT_ASSERT_TRUE(test, skb); + __mctp_cb(skb); + skb_reserve(skb, sizeof(struct mctp_hdr) + 1 + len); + memset(skb_put(skb, len), 0, len); + + rc = mctp_local_output(sock->sk, &dst, skb, 9, MCTP_TAG_OWNER); + KUNIT_ASSERT_EQ(test, rc, 0); + + KUNIT_ASSERT_EQ(test, dev->pkts.qlen, 1); + + skb2 = skb_dequeue(&dev->pkts); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, skb2); + + kfree_skb(skb2); + sock_release(sock); + mctp_dst_release(&dst); + mctp_test_destroy_dev(dev); +} + +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), + KUNIT_CASE_PARAM(mctp_test_route_input_sk_reasm, + mctp_route_input_sk_reasm_gen_params), + KUNIT_CASE_PARAM(mctp_test_route_input_sk_keys, + mctp_route_input_sk_keys_gen_params), + KUNIT_CASE(mctp_test_route_input_sk_fail_single), + KUNIT_CASE(mctp_test_route_input_sk_fail_frag), + KUNIT_CASE(mctp_test_route_input_multiple_nets_bind), + KUNIT_CASE(mctp_test_route_input_multiple_nets_key), + KUNIT_CASE(mctp_test_route_input_null_eid), + KUNIT_CASE(mctp_test_packet_flow), + KUNIT_CASE(mctp_test_fragment_flow), + KUNIT_CASE(mctp_test_route_output_key_create), + KUNIT_CASE(mctp_test_route_input_cloned_frag), + KUNIT_CASE(mctp_test_route_extaddr_input), + KUNIT_CASE(mctp_test_route_gw_lookup), + KUNIT_CASE(mctp_test_route_gw_loop), + KUNIT_CASE_PARAM(mctp_test_route_gw_mtu, mctp_route_gw_mtu_gen_params), + KUNIT_CASE(mctp_test_route_gw_output), + KUNIT_CASE_PARAM(mctp_test_bind_lookup, mctp_bind_lookup_gen_params), + KUNIT_CASE(mctp_test_route_output_direct_no_eids), + KUNIT_CASE(mctp_test_route_output_gw_no_eids), + KUNIT_CASE(mctp_test_route_output_extaddr_no_eids), + {} +}; + +static struct kunit_suite mctp_test_suite = { + .name = "mctp-route", + .test_cases = mctp_test_cases, +}; + +kunit_test_suite(mctp_test_suite); diff --git a/net/mctp/test/sock-test.c b/net/mctp/test/sock-test.c new file mode 100644 index 000000000..b0942deb5 --- /dev/null +++ b/net/mctp/test/sock-test.c @@ -0,0 +1,396 @@ +// SPDX-License-Identifier: GPL-2.0 + +#include +#include + +#include +#include + +#include "utils.h" + +static const u8 dev_default_lladdr[] = { 0x01, 0x02 }; + +/* helper for simple sock setup: single device, with dev_default_lladdr as its + * hardware address, assigned with a local EID 8, and a route to EID 9 + */ +static void __mctp_sock_test_init(struct kunit *test, + struct mctp_test_dev **devp, + struct mctp_test_route **rtp, + struct socket **sockp) +{ + struct mctp_test_route *rt; + struct mctp_test_dev *dev; + struct socket *sock; + unsigned long flags; + u8 *addrs; + int rc; + + dev = mctp_test_create_dev_lladdr(sizeof(dev_default_lladdr), + dev_default_lladdr); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, dev); + + addrs = kmalloc(1, GFP_KERNEL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, addrs); + addrs[0] = 8; + + spin_lock_irqsave(&dev->mdev->addrs_lock, flags); + dev->mdev->num_addrs = 1; + swap(addrs, dev->mdev->addrs); + spin_unlock_irqrestore(&dev->mdev->addrs_lock, flags); + + kfree(addrs); + + rt = mctp_test_create_route_direct(dev_net(dev->ndev), dev->mdev, 9, 0); + 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); + + *devp = dev; + *rtp = rt; + *sockp = sock; +} + +static void __mctp_sock_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_test_sock_local_output_config { + struct mctp_test_dev *dev; + size_t halen; + u8 haddr[MAX_ADDR_LEN]; + bool invoked; + int rc; +}; + +static int mctp_test_sock_local_output(struct sock *sk, + struct mctp_dst *dst, + struct sk_buff *skb, + mctp_eid_t daddr, u8 req_tag) +{ + struct kunit *test = kunit_get_current_test(); + struct mctp_test_sock_local_output_config *cfg = test->priv; + + KUNIT_EXPECT_PTR_EQ(test, dst->dev, cfg->dev->mdev); + KUNIT_EXPECT_EQ(test, dst->halen, cfg->halen); + KUNIT_EXPECT_MEMEQ(test, dst->haddr, cfg->haddr, dst->halen); + + cfg->invoked = true; + + kfree_skb(skb); + + return cfg->rc; +} + +static void mctp_test_sock_sendmsg_extaddr(struct kunit *test) +{ + struct sockaddr_mctp_ext addr = { + .smctp_base = { + .smctp_family = AF_MCTP, + .smctp_tag = MCTP_TAG_OWNER, + .smctp_network = MCTP_NET_ANY, + }, + }; + struct mctp_test_sock_local_output_config cfg = { 0 }; + u8 haddr[] = { 0xaa, 0x01 }; + u8 buf[4] = { 0, 1, 2, 3 }; + struct mctp_test_route *rt; + struct msghdr msg = { 0 }; + struct mctp_test_dev *dev; + struct mctp_sock *msk; + struct socket *sock; + ssize_t send_len; + struct kvec vec = { + .iov_base = buf, + .iov_len = sizeof(buf), + }; + + __mctp_sock_test_init(test, &dev, &rt, &sock); + + /* Expect to see the dst configured up with the addressing data we + * provide in the struct sockaddr_mctp_ext + */ + cfg.dev = dev; + cfg.halen = sizeof(haddr); + memcpy(cfg.haddr, haddr, sizeof(haddr)); + + test->priv = &cfg; + + kunit_activate_static_stub(test, mctp_local_output, + mctp_test_sock_local_output); + + /* enable and configure direct addressing */ + msk = container_of(sock->sk, struct mctp_sock, sk); + msk->addr_ext = true; + + addr.smctp_ifindex = dev->ndev->ifindex; + addr.smctp_halen = sizeof(haddr); + memcpy(addr.smctp_haddr, haddr, sizeof(haddr)); + + msg.msg_name = &addr; + msg.msg_namelen = sizeof(addr); + + iov_iter_kvec(&msg.msg_iter, ITER_SOURCE, &vec, 1, sizeof(buf)); + send_len = mctp_sendmsg(sock, &msg, sizeof(buf)); + KUNIT_EXPECT_EQ(test, send_len, sizeof(buf)); + KUNIT_EXPECT_TRUE(test, cfg.invoked); + + __mctp_sock_test_fini(test, dev, rt, sock); +} + +static void mctp_test_sock_recvmsg_extaddr(struct kunit *test) +{ + struct sockaddr_mctp_ext recv_addr = { 0 }; + u8 rcv_buf[1], rcv_data[] = { 0, 1 }; + u8 haddr[] = { 0xaa, 0x02 }; + struct mctp_test_route *rt; + struct mctp_test_dev *dev; + struct mctp_skb_cb *cb; + struct mctp_sock *msk; + struct sk_buff *skb; + struct mctp_hdr hdr; + struct socket *sock; + struct msghdr msg; + ssize_t recv_len; + int rc; + struct kvec vec = { + .iov_base = rcv_buf, + .iov_len = sizeof(rcv_buf), + }; + + __mctp_sock_test_init(test, &dev, &rt, &sock); + + /* enable extended addressing on recv */ + msk = container_of(sock->sk, struct mctp_sock, sk); + msk->addr_ext = true; + + /* base incoming header, using a nul-EID dest */ + hdr.ver = 1; + hdr.dest = 0; + hdr.src = 9; + hdr.flags_seq_tag = MCTP_HDR_FLAG_SOM | MCTP_HDR_FLAG_EOM | + MCTP_HDR_FLAG_TO; + + skb = mctp_test_create_skb_data(&hdr, &rcv_data); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, skb); + + mctp_test_skb_set_dev(skb, dev); + + /* set incoming extended address data */ + cb = mctp_cb(skb); + cb->halen = sizeof(haddr); + cb->ifindex = dev->ndev->ifindex; + memcpy(cb->haddr, haddr, sizeof(haddr)); + + /* Deliver to socket. The route input path pulls the network header, + * leaving skb data at type byte onwards. recvmsg will consume the + * type for addr.smctp_type + */ + skb_pull(skb, sizeof(hdr)); + rc = sock_queue_rcv_skb(sock->sk, skb); + KUNIT_ASSERT_EQ(test, rc, 0); + + msg.msg_name = &recv_addr; + msg.msg_namelen = sizeof(recv_addr); + iov_iter_kvec(&msg.msg_iter, ITER_DEST, &vec, 1, sizeof(rcv_buf)); + + recv_len = mctp_recvmsg(sock, &msg, sizeof(rcv_buf), + MSG_DONTWAIT | MSG_TRUNC); + + KUNIT_EXPECT_EQ(test, recv_len, sizeof(rcv_buf)); + + /* expect our extended address to be populated from hdr and cb */ + KUNIT_EXPECT_EQ(test, msg.msg_namelen, sizeof(recv_addr)); + KUNIT_EXPECT_EQ(test, recv_addr.smctp_base.smctp_family, AF_MCTP); + KUNIT_EXPECT_EQ(test, recv_addr.smctp_ifindex, dev->ndev->ifindex); + KUNIT_EXPECT_EQ(test, recv_addr.smctp_halen, sizeof(haddr)); + KUNIT_EXPECT_MEMEQ(test, recv_addr.smctp_haddr, haddr, sizeof(haddr)); + + __mctp_sock_test_fini(test, dev, rt, sock); +} + +static const struct mctp_test_bind_setup bind_addrany_netdefault_type1 = { + .bind_addr = MCTP_ADDR_ANY, .bind_net = MCTP_NET_ANY, .bind_type = 1, +}; + +static const struct mctp_test_bind_setup bind_addrany_net2_type1 = { + .bind_addr = MCTP_ADDR_ANY, .bind_net = 2, .bind_type = 1, +}; + +/* 1 is default net */ +static const struct mctp_test_bind_setup bind_addr8_net1_type1 = { + .bind_addr = 8, .bind_net = 1, .bind_type = 1, +}; + +static const struct mctp_test_bind_setup bind_addrany_net1_type1 = { + .bind_addr = MCTP_ADDR_ANY, .bind_net = 1, .bind_type = 1, +}; + +/* 2 is an arbitrary net */ +static const struct mctp_test_bind_setup bind_addr8_net2_type1 = { + .bind_addr = 8, .bind_net = 2, .bind_type = 1, +}; + +static const struct mctp_test_bind_setup bind_addr8_netdefault_type1 = { + .bind_addr = 8, .bind_net = MCTP_NET_ANY, .bind_type = 1, +}; + +static const struct mctp_test_bind_setup bind_addrany_net2_type2 = { + .bind_addr = MCTP_ADDR_ANY, .bind_net = 2, .bind_type = 2, +}; + +static const struct mctp_test_bind_setup bind_addrany_net2_type1_peer9 = { + .bind_addr = MCTP_ADDR_ANY, .bind_net = 2, .bind_type = 1, + .have_peer = true, .peer_addr = 9, .peer_net = 2, +}; + +struct mctp_bind_pair_test { + const struct mctp_test_bind_setup *bind1; + const struct mctp_test_bind_setup *bind2; + int error; +}; + +/* Pairs of binds and whether they will conflict */ +static const struct mctp_bind_pair_test mctp_bind_pair_tests[] = { + /* Both ADDR_ANY, conflict */ + { &bind_addrany_netdefault_type1, &bind_addrany_netdefault_type1, + EADDRINUSE }, + /* Same specific EID, conflict */ + { &bind_addr8_netdefault_type1, &bind_addr8_netdefault_type1, + EADDRINUSE }, + /* ADDR_ANY vs specific EID, OK */ + { &bind_addrany_netdefault_type1, &bind_addr8_netdefault_type1, 0 }, + /* ADDR_ANY different types, OK */ + { &bind_addrany_net2_type2, &bind_addrany_net2_type1, 0 }, + /* ADDR_ANY different nets, OK */ + { &bind_addrany_net2_type1, &bind_addrany_netdefault_type1, 0 }, + + /* specific EID, NET_ANY (resolves to default) + * vs specific EID, explicit default net 1, conflict + */ + { &bind_addr8_netdefault_type1, &bind_addr8_net1_type1, EADDRINUSE }, + + /* specific EID, net 1 vs specific EID, net 2, ok */ + { &bind_addr8_net1_type1, &bind_addr8_net2_type1, 0 }, + + /* ANY_ADDR, NET_ANY (doesn't resolve to default) + * vs ADDR_ANY, explicit default net 1, OK + */ + { &bind_addrany_netdefault_type1, &bind_addrany_net1_type1, 0 }, + + /* specific remote peer doesn't conflict with any-peer bind */ + { &bind_addrany_net2_type1_peer9, &bind_addrany_net2_type1, 0 }, + + /* bind() NET_ANY is allowed with a connect() net */ + { &bind_addrany_net2_type1_peer9, &bind_addrany_netdefault_type1, 0 }, +}; + +static void mctp_bind_pair_desc(const struct mctp_bind_pair_test *t, char *desc) +{ + char peer1[25] = {0}, peer2[25] = {0}; + + if (t->bind1->have_peer) + snprintf(peer1, sizeof(peer1), ", peer %d net %d", + t->bind1->peer_addr, t->bind1->peer_net); + if (t->bind2->have_peer) + snprintf(peer2, sizeof(peer2), ", peer %d net %d", + t->bind2->peer_addr, t->bind2->peer_net); + + snprintf(desc, KUNIT_PARAM_DESC_SIZE, + "{bind(addr %d, type %d, net %d%s)} {bind(addr %d, type %d, net %d%s)} -> error %d", + t->bind1->bind_addr, t->bind1->bind_type, + t->bind1->bind_net, peer1, + t->bind2->bind_addr, t->bind2->bind_type, + t->bind2->bind_net, peer2, t->error); +} + +KUNIT_ARRAY_PARAM(mctp_bind_pair, mctp_bind_pair_tests, mctp_bind_pair_desc); + +static void mctp_test_bind_invalid(struct kunit *test) +{ + struct socket *sock; + int rc; + + /* bind() fails if the bind() vs connect() networks mismatch. */ + const struct mctp_test_bind_setup bind_connect_net_mismatch = { + .bind_addr = MCTP_ADDR_ANY, .bind_net = 1, .bind_type = 1, + .have_peer = true, .peer_addr = 9, .peer_net = 2, + }; + mctp_test_bind_run(test, &bind_connect_net_mismatch, &rc, &sock); + KUNIT_EXPECT_EQ(test, -rc, EINVAL); + sock_release(sock); +} + +static int +mctp_test_bind_conflicts_inner(struct kunit *test, + const struct mctp_test_bind_setup *bind1, + const struct mctp_test_bind_setup *bind2) +{ + struct socket *sock1 = NULL, *sock2 = NULL, *sock3 = NULL; + int bind_errno; + + /* Bind to first address, always succeeds */ + mctp_test_bind_run(test, bind1, &bind_errno, &sock1); + KUNIT_EXPECT_EQ(test, bind_errno, 0); + + /* A second identical bind always fails */ + mctp_test_bind_run(test, bind1, &bind_errno, &sock2); + KUNIT_EXPECT_EQ(test, -bind_errno, EADDRINUSE); + + /* A different bind, result is returned */ + mctp_test_bind_run(test, bind2, &bind_errno, &sock3); + + if (sock1) + sock_release(sock1); + if (sock2) + sock_release(sock2); + if (sock3) + sock_release(sock3); + + return bind_errno; +} + +static void mctp_test_bind_conflicts(struct kunit *test) +{ + const struct mctp_bind_pair_test *pair; + int bind_errno; + + pair = test->param_value; + + bind_errno = + mctp_test_bind_conflicts_inner(test, pair->bind1, pair->bind2); + KUNIT_EXPECT_EQ(test, -bind_errno, pair->error); + + /* swapping the calls, the second bind should still fail */ + bind_errno = + mctp_test_bind_conflicts_inner(test, pair->bind2, pair->bind1); + KUNIT_EXPECT_EQ(test, -bind_errno, pair->error); +} + +static void mctp_test_assumptions(struct kunit *test) +{ + /* check assumption of default net from bind_addr8_net1_type1 */ + KUNIT_ASSERT_EQ(test, mctp_default_net(&init_net), 1); +} + +static struct kunit_case mctp_test_cases[] = { + KUNIT_CASE(mctp_test_assumptions), + KUNIT_CASE(mctp_test_sock_sendmsg_extaddr), + KUNIT_CASE(mctp_test_sock_recvmsg_extaddr), + KUNIT_CASE_PARAM(mctp_test_bind_conflicts, mctp_bind_pair_gen_params), + KUNIT_CASE(mctp_test_bind_invalid), + {} +}; + +static struct kunit_suite mctp_test_suite = { + .name = "mctp-sock", + .test_cases = mctp_test_cases, +}; + +kunit_test_suite(mctp_test_suite); diff --git a/net/mctp/test/utils.c b/net/mctp/test/utils.c new file mode 100644 index 000000000..6eef8d485 --- /dev/null +++ b/net/mctp/test/utils.c @@ -0,0 +1,311 @@ +// SPDX-License-Identifier: GPL-2.0 + +#include +#include +#include + +#include +#include +#include + +#include "utils.h" + +static netdev_tx_t mctp_test_dev_tx(struct sk_buff *skb, + struct net_device *ndev) +{ + struct mctp_test_dev *dev = netdev_priv(ndev); + + skb_queue_tail(&dev->pkts, skb); + + return NETDEV_TX_OK; +} + +static const struct net_device_ops mctp_test_netdev_ops = { + .ndo_start_xmit = mctp_test_dev_tx, +}; + +static void mctp_test_dev_setup(struct net_device *ndev) +{ + ndev->type = ARPHRD_MCTP; + ndev->mtu = MCTP_DEV_TEST_MTU; + ndev->hard_header_len = 0; + ndev->tx_queue_len = 0; + ndev->flags = IFF_NOARP; + ndev->netdev_ops = &mctp_test_netdev_ops; + ndev->needs_free_netdev = true; +} + +static struct mctp_test_dev *__mctp_test_create_dev(unsigned short lladdr_len, + const unsigned char *lladdr) +{ + struct mctp_test_dev *dev; + struct net_device *ndev; + int rc; + + if (WARN_ON(lladdr_len > MAX_ADDR_LEN)) + return NULL; + + ndev = alloc_netdev(sizeof(*dev), "mctptest%d", NET_NAME_ENUM, + mctp_test_dev_setup); + if (!ndev) + return NULL; + + dev = netdev_priv(ndev); + dev->ndev = ndev; + ndev->addr_len = lladdr_len; + dev_addr_set(ndev, lladdr); + skb_queue_head_init(&dev->pkts); + + rc = register_netdev(ndev); + if (rc) { + free_netdev(ndev); + return NULL; + } + + rcu_read_lock(); + dev->mdev = __mctp_dev_get(ndev); + dev->mdev->net = mctp_default_net(dev_net(ndev)); + rcu_read_unlock(); + + /* bring the device up; we want to be able to TX immediately */ + rtnl_lock(); + dev_open(ndev, NULL); + rtnl_unlock(); + + return dev; +} + +struct mctp_test_dev *mctp_test_create_dev(void) +{ + return __mctp_test_create_dev(0, NULL); +} + +struct mctp_test_dev *mctp_test_create_dev_with_addr(mctp_eid_t addr) +{ + struct mctp_test_dev *dev; + + dev = __mctp_test_create_dev(0, NULL); + if (!dev) + return NULL; + + dev->mdev->addrs = kmalloc_objs(u8, 1, GFP_KERNEL); + if (!dev->mdev->addrs) { + mctp_test_destroy_dev(dev); + return NULL; + } + + dev->mdev->num_addrs = 1; + dev->mdev->addrs[0] = addr; + + return dev; +} + +struct mctp_test_dev *mctp_test_create_dev_lladdr(unsigned short lladdr_len, + const unsigned char *lladdr) +{ + return __mctp_test_create_dev(lladdr_len, lladdr); +} + +void mctp_test_destroy_dev(struct mctp_test_dev *dev) +{ + skb_queue_purge(&dev->pkts); + mctp_dev_put(dev->mdev); + unregister_netdev(dev->ndev); +} + +static int mctp_test_dst_output(struct mctp_dst *dst, struct sk_buff *skb) +{ + skb->dev = dst->dev->dev; + dev_direct_xmit(skb, 0); + + return 0; +} + +/* local version of mctp_route_alloc() */ +static struct mctp_test_route *mctp_route_test_alloc(void) +{ + struct mctp_test_route *rt; + + rt = kzalloc_obj(*rt); + if (!rt) + return NULL; + + INIT_LIST_HEAD(&rt->rt.list); + refcount_set(&rt->rt.refs, 1); + rt->rt.output = mctp_test_dst_output; + + return rt; +} + +struct mctp_test_route *mctp_test_create_route_direct(struct net *net, + struct mctp_dev *dev, + mctp_eid_t eid, + unsigned int mtu) +{ + struct mctp_test_route *rt; + + rt = mctp_route_test_alloc(); + if (!rt) + return NULL; + + rt->rt.min = eid; + rt->rt.max = eid; + rt->rt.mtu = mtu; + rt->rt.type = RTN_UNSPEC; + rt->rt.dst_type = MCTP_ROUTE_DIRECT; + if (dev) + mctp_dev_hold(dev); + rt->rt.dev = dev; + + list_add_rcu(&rt->rt.list, &net->mctp.routes); + + return rt; +} + +struct mctp_test_route *mctp_test_create_route_gw(struct net *net, + unsigned int netid, + mctp_eid_t eid, + mctp_eid_t gw, + unsigned int mtu) +{ + struct mctp_test_route *rt; + + rt = mctp_route_test_alloc(); + if (!rt) + return NULL; + + rt->rt.min = eid; + rt->rt.max = eid; + rt->rt.mtu = mtu; + rt->rt.type = RTN_UNSPEC; + rt->rt.dst_type = MCTP_ROUTE_GATEWAY; + rt->rt.gateway.eid = gw; + rt->rt.gateway.net = netid; + + list_add_rcu(&rt->rt.list, &net->mctp.routes); + + return rt; +} + +/* Convenience function for our test dst; release with mctp_dst_release() */ +void mctp_test_dst_setup(struct kunit *test, struct mctp_dst *dst, + struct mctp_test_dev *dev, unsigned int mtu) +{ + unsigned long flags; + + KUNIT_EXPECT_NOT_ERR_OR_NULL(test, dev); + + memset(dst, 0, sizeof(*dst)); + + dst->dev = dev->mdev; + __mctp_dev_get(dst->dev->dev); + dst->mtu = mtu; + dst->output = mctp_test_dst_output; + dst->saddr = MCTP_ADDR_NULL; + spin_lock_irqsave(&dev->mdev->addrs_lock, flags); + if (dev->mdev->num_addrs) + dst->saddr = dev->mdev->addrs[0]; + spin_unlock_irqrestore(&dev->mdev->addrs_lock, flags); +} + +void mctp_test_route_destroy(struct kunit *test, struct mctp_test_route *rt) +{ + unsigned int refs; + + rtnl_lock(); + list_del_rcu(&rt->rt.list); + rtnl_unlock(); + + if (rt->rt.dst_type == MCTP_ROUTE_DIRECT && rt->rt.dev) + mctp_dev_put(rt->rt.dev); + + refs = refcount_read(&rt->rt.refs); + KUNIT_ASSERT_EQ_MSG(test, refs, 1, "route ref imbalance"); + + kfree_rcu(&rt->rt, rcu); +} + +void mctp_test_skb_set_dev(struct sk_buff *skb, struct mctp_test_dev *dev) +{ + struct mctp_skb_cb *cb; + + cb = mctp_cb(skb); + cb->net = READ_ONCE(dev->mdev->net); + skb->dev = dev->ndev; +} + +struct sk_buff *mctp_test_create_skb(const struct mctp_hdr *hdr, + unsigned int data_len) +{ + size_t hdr_len = sizeof(*hdr); + struct sk_buff *skb; + unsigned int i; + u8 *buf; + + skb = alloc_skb(hdr_len + data_len, GFP_KERNEL); + if (!skb) + return NULL; + + __mctp_cb(skb); + memcpy(skb_put(skb, hdr_len), hdr, hdr_len); + + buf = skb_put(skb, data_len); + for (i = 0; i < data_len; i++) + buf[i] = i & 0xff; + + return skb; +} + +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; + + __mctp_cb(skb); + memcpy(skb_put(skb, hdr_len), hdr, hdr_len); + memcpy(skb_put(skb, data_len), data, data_len); + + return skb; +} + +void mctp_test_bind_run(struct kunit *test, + const struct mctp_test_bind_setup *setup, + int *ret_bind_errno, struct socket **sock) +{ + struct sockaddr_mctp addr; + int rc; + + *ret_bind_errno = -EIO; + + rc = sock_create_kern(&init_net, AF_MCTP, SOCK_DGRAM, 0, sock); + KUNIT_ASSERT_EQ(test, rc, 0); + + /* connect() if requested */ + if (setup->have_peer) { + memset(&addr, 0x0, sizeof(addr)); + addr.smctp_family = AF_MCTP; + addr.smctp_network = setup->peer_net; + addr.smctp_addr.s_addr = setup->peer_addr; + /* connect() type must match bind() type */ + addr.smctp_type = setup->bind_type; + rc = kernel_connect(*sock, (struct sockaddr_unsized *)&addr, + sizeof(addr), 0); + KUNIT_EXPECT_EQ(test, rc, 0); + } + + /* bind() */ + memset(&addr, 0x0, sizeof(addr)); + addr.smctp_family = AF_MCTP; + addr.smctp_network = setup->bind_net; + addr.smctp_addr.s_addr = setup->bind_addr; + addr.smctp_type = setup->bind_type; + + *ret_bind_errno = + kernel_bind(*sock, (struct sockaddr_unsized *)&addr, + sizeof(addr)); +} diff --git a/net/mctp/test/utils.h b/net/mctp/test/utils.h new file mode 100644 index 000000000..47603732e --- /dev/null +++ b/net/mctp/test/utils.h @@ -0,0 +1,75 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +#ifndef __NET_MCTP_TEST_UTILS_H +#define __NET_MCTP_TEST_UTILS_H + +#include + +#include +#include + +#include + +#define MCTP_DEV_TEST_MTU 68 + +struct mctp_test_dev { + struct net_device *ndev; + struct mctp_dev *mdev; + + unsigned short lladdr_len; + unsigned char lladdr[MAX_ADDR_LEN]; + + struct sk_buff_head pkts; +}; + +struct mctp_test_dev; + +struct mctp_test_route { + struct mctp_route rt; +}; + +struct mctp_test_bind_setup { + mctp_eid_t bind_addr; + int bind_net; + u8 bind_type; + + bool have_peer; + mctp_eid_t peer_addr; + int peer_net; + + /* optional name. Used for comparison in "lookup" tests */ + const char *name; +}; + +struct mctp_test_dev *mctp_test_create_dev(void); +struct mctp_test_dev *mctp_test_create_dev_with_addr(mctp_eid_t eid); +struct mctp_test_dev *mctp_test_create_dev_lladdr(unsigned short lladdr_len, + const unsigned char *lladdr); +void mctp_test_destroy_dev(struct mctp_test_dev *dev); + +struct mctp_test_route *mctp_test_create_route_direct(struct net *net, + struct mctp_dev *dev, + mctp_eid_t eid, + unsigned int mtu); +struct mctp_test_route *mctp_test_create_route_gw(struct net *net, + unsigned int netid, + mctp_eid_t eid, + mctp_eid_t gw, + unsigned int mtu); +void mctp_test_dst_setup(struct kunit *test, struct mctp_dst *dst, + struct mctp_test_dev *dev, unsigned int mtu); +void mctp_test_route_destroy(struct kunit *test, struct mctp_test_route *rt); +void mctp_test_skb_set_dev(struct sk_buff *skb, struct mctp_test_dev *dev); +struct sk_buff *mctp_test_create_skb(const struct mctp_hdr *hdr, + unsigned int data_len); +struct sk_buff *__mctp_test_create_skb_data(const struct mctp_hdr *hdr, + const void *data, size_t data_len); + +#define mctp_test_create_skb_data(h, d) \ + __mctp_test_create_skb_data(h, d, sizeof(*d)) + +void mctp_test_bind_run(struct kunit *test, + const struct mctp_test_bind_setup *setup, + int *ret_bind_errno, struct socket **sock); + +#endif /* __NET_MCTP_TEST_UTILS_H */ -- cgit v1.3.1