If unsure, say N.
-config TEST_BLACKHOLE_DEV
- tristate "Test blackhole netdev functionality"
- depends on m && NET
- help
- This builds the "test_blackhole_dev" module that validates the
- data path through this blackhole netdev.
-
- If unsure, say N.
-
config FIND_BIT_BENCHMARK
tristate "Test find_bit functions"
help
on the copy_to/from_user infrastructure, making sure basic
user/kernel boundary testing is working.
+config BLACKHOLE_DEV_KUNIT_TEST
+ tristate "Test blackhole netdev functionality" if !KUNIT_ALL_TESTS
+ depends on NET
+ depends on KUNIT
+ default KUNIT_ALL_TESTS
+ help
+ This builds the "blackhole_dev_kunit" module that validates the
+ data path through this blackhole netdev.
+
+ If unsure, say N.
+
config TEST_UDELAY
tristate "udelay test driver"
help
obj-$(CONFIG_TEST_DEBUG_VIRTUAL) += test_debug_virtual.o
obj-$(CONFIG_TEST_MEMCAT_P) += test_memcat_p.o
obj-$(CONFIG_TEST_OBJAGG) += test_objagg.o
-obj-$(CONFIG_TEST_BLACKHOLE_DEV) += test_blackhole_dev.o
obj-$(CONFIG_TEST_MEMINIT) += test_meminit.o
obj-$(CONFIG_TEST_LOCKUP) += test_lockup.o
obj-$(CONFIG_TEST_HMM) += test_hmm.o
obj-$(CONFIG_CRC_KUNIT_TEST) += crc_kunit.o
obj-$(CONFIG_SIPHASH_KUNIT_TEST) += siphash_kunit.o
obj-$(CONFIG_USERCOPY_KUNIT_TEST) += usercopy_kunit.o
+obj-$(CONFIG_BLACKHOLE_DEV_KUNIT_TEST) += blackhole_dev_kunit.o
obj-$(CONFIG_GENERIC_LIB_DEVMEM_IS_ALLOWED) += devmem_is_allowed.o
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * This tests the blackhole_dev that is created during the
+ * net subsystem initialization. The test this module performs is
+ * by injecting an skb into the stack with skb->dev as the
+ * blackhole_dev and expects kernel to behave in a sane manner
+ * (in other words, *not crash*)!
+ *
+ * Copyright (c) 2018, Mahesh Bandewar <maheshb@google.com>
+ */
+
+#include <kunit/test.h>
+#include <linux/module.h>
+#include <linux/skbuff.h>
+#include <linux/netdevice.h>
+#include <linux/udp.h>
+#include <linux/ipv6.h>
+
+#include <net/dst.h>
+
+#define SKB_SIZE 256
+#define HEAD_SIZE (14+40+8) /* Ether + IPv6 + UDP */
+#define TAIL_SIZE 32 /* random tail-room */
+
+#define UDP_PORT 1234
+
+static void test_blackholedev(struct kunit *test)
+{
+ struct ipv6hdr *ip6h;
+ struct sk_buff *skb;
+ struct udphdr *uh;
+ int data_len;
+
+ skb = alloc_skb(SKB_SIZE, GFP_KERNEL);
+ KUNIT_ASSERT_NOT_NULL(test, skb);
+
+ /* Reserve head-room for the headers */
+ skb_reserve(skb, HEAD_SIZE);
+
+ /* Add data to the skb */
+ data_len = SKB_SIZE - (HEAD_SIZE + TAIL_SIZE);
+ memset(__skb_put(skb, data_len), 0xf, data_len);
+
+ /* Add protocol data */
+ /* (Transport) UDP */
+ uh = (struct udphdr *)skb_push(skb, sizeof(struct udphdr));
+ skb_set_transport_header(skb, 0);
+ uh->source = uh->dest = htons(UDP_PORT);
+ uh->len = htons(data_len);
+ uh->check = 0;
+ /* (Network) IPv6 */
+ ip6h = (struct ipv6hdr *)skb_push(skb, sizeof(struct ipv6hdr));
+ skb_set_network_header(skb, 0);
+ ip6h->hop_limit = 32;
+ ip6h->payload_len = htons(data_len + sizeof(struct udphdr));
+ ip6h->nexthdr = IPPROTO_UDP;
+ ip6h->saddr = in6addr_loopback;
+ ip6h->daddr = in6addr_loopback;
+ /* Ether */
+ skb_push(skb, sizeof(struct ethhdr));
+ skb_set_mac_header(skb, 0);
+
+ skb->protocol = htons(ETH_P_IPV6);
+ skb->pkt_type = PACKET_HOST;
+ skb->dev = blackhole_netdev;
+
+ /* Now attempt to send the packet */
+ KUNIT_EXPECT_EQ(test, dev_queue_xmit(skb), NET_XMIT_SUCCESS);
+}
+
+static struct kunit_case blackholedev_cases[] = {
+ KUNIT_CASE(test_blackholedev),
+ {},
+};
+
+static struct kunit_suite blackholedev_suite = {
+ .name = "blackholedev",
+ .test_cases = blackholedev_cases,
+};
+
+kunit_test_suite(blackholedev_suite);
+
+MODULE_AUTHOR("Mahesh Bandewar <maheshb@google.com>");
+MODULE_DESCRIPTION("module test of the blackhole_dev");
+MODULE_LICENSE("GPL");
+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0
-/*
- * This module tests the blackhole_dev that is created during the
- * net subsystem initialization. The test this module performs is
- * by injecting an skb into the stack with skb->dev as the
- * blackhole_dev and expects kernel to behave in a sane manner
- * (in other words, *not crash*)!
- *
- * Copyright (c) 2018, Mahesh Bandewar <maheshb@google.com>
- */
-
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/printk.h>
-#include <linux/skbuff.h>
-#include <linux/netdevice.h>
-#include <linux/udp.h>
-#include <linux/ipv6.h>
-
-#include <net/dst.h>
-
-#define SKB_SIZE 256
-#define HEAD_SIZE (14+40+8) /* Ether + IPv6 + UDP */
-#define TAIL_SIZE 32 /* random tail-room */
-
-#define UDP_PORT 1234
-
-static int __init test_blackholedev_init(void)
-{
- struct ipv6hdr *ip6h;
- struct sk_buff *skb;
- struct udphdr *uh;
- int data_len;
- int ret;
-
- skb = alloc_skb(SKB_SIZE, GFP_KERNEL);
- if (!skb)
- return -ENOMEM;
-
- /* Reserve head-room for the headers */
- skb_reserve(skb, HEAD_SIZE);
-
- /* Add data to the skb */
- data_len = SKB_SIZE - (HEAD_SIZE + TAIL_SIZE);
- memset(__skb_put(skb, data_len), 0xf, data_len);
-
- /* Add protocol data */
- /* (Transport) UDP */
- uh = (struct udphdr *)skb_push(skb, sizeof(struct udphdr));
- skb_set_transport_header(skb, 0);
- uh->source = uh->dest = htons(UDP_PORT);
- uh->len = htons(data_len);
- uh->check = 0;
- /* (Network) IPv6 */
- ip6h = (struct ipv6hdr *)skb_push(skb, sizeof(struct ipv6hdr));
- skb_set_network_header(skb, 0);
- ip6h->hop_limit = 32;
- ip6h->payload_len = data_len + sizeof(struct udphdr);
- ip6h->nexthdr = IPPROTO_UDP;
- ip6h->saddr = in6addr_loopback;
- ip6h->daddr = in6addr_loopback;
- /* Ether */
- skb_push(skb, sizeof(struct ethhdr));
- skb_set_mac_header(skb, 0);
-
- skb->protocol = htons(ETH_P_IPV6);
- skb->pkt_type = PACKET_HOST;
- skb->dev = blackhole_netdev;
-
- /* Now attempt to send the packet */
- ret = dev_queue_xmit(skb);
-
- switch (ret) {
- case NET_XMIT_SUCCESS:
- pr_warn("dev_queue_xmit() returned NET_XMIT_SUCCESS\n");
- break;
- case NET_XMIT_DROP:
- pr_warn("dev_queue_xmit() returned NET_XMIT_DROP\n");
- break;
- case NET_XMIT_CN:
- pr_warn("dev_queue_xmit() returned NET_XMIT_CN\n");
- break;
- default:
- pr_err("dev_queue_xmit() returned UNKNOWN(%d)\n", ret);
- }
-
- return 0;
-}
-
-static void __exit test_blackholedev_exit(void)
-{
- pr_warn("test_blackholedev module terminating.\n");
-}
-
-module_init(test_blackholedev_init);
-module_exit(test_blackholedev_exit);
-
-MODULE_AUTHOR("Mahesh Bandewar <maheshb@google.com>");
-MODULE_DESCRIPTION("module test of the blackhole_dev");
-MODULE_LICENSE("GPL");
CFLAGS += -I../
TEST_PROGS := run_netsocktests run_afpackettests test_bpf.sh netdevice.sh \
- rtnetlink.sh xfrm_policy.sh test_blackhole_dev.sh
+ rtnetlink.sh xfrm_policy.sh
TEST_PROGS += fib_tests.sh fib-onlink-tests.sh pmtu.sh udpgso.sh ip_defrag.sh
TEST_PROGS += udpgso_bench.sh fib_rule_tests.sh msg_zerocopy.sh psock_snd.sh
TEST_PROGS += udpgro_bench.sh udpgro.sh test_vxlan_under_vrf.sh reuseport_addr_any.sh
+++ /dev/null
-#!/bin/sh
-# SPDX-License-Identifier: GPL-2.0
-# Runs blackhole-dev test using blackhole-dev kernel module
-
-if /sbin/modprobe -q test_blackhole_dev ; then
- /sbin/modprobe -q -r test_blackhole_dev;
- echo "test_blackhole_dev: ok";
-else
- echo "test_blackhole_dev: [FAIL]";
- exit 1;
-fi
projects / linux-block.git / commitdiff