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-rwxr-xr-xtools/testing/selftests/net/in_netns.sh23
-rw-r--r--tools/testing/selftests/net/psock_fanout.c32
-rwxr-xr-xtools/testing/selftests/net/run_afpackettests4
3 files changed, 51 insertions, 8 deletions
diff --git a/tools/testing/selftests/net/in_netns.sh b/tools/testing/selftests/net/in_netns.sh
new file mode 100755
index 000000000000..f57a2eaad069
--- /dev/null
+++ b/tools/testing/selftests/net/in_netns.sh
@@ -0,0 +1,23 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+#
+# Execute a subprocess in a network namespace
+
+set -e
+
+readonly NETNS="ns-$(mktemp -u XXXXXX)"
+
+setup() {
+ ip netns add "${NETNS}"
+ ip -netns "${NETNS}" link set lo up
+}
+
+cleanup() {
+ ip netns del "${NETNS}"
+}
+
+trap cleanup EXIT
+setup
+
+"$@"
+exit "$?"
diff --git a/tools/testing/selftests/net/psock_fanout.c b/tools/testing/selftests/net/psock_fanout.c
index d4346b16b2c1..bd9b9632c72b 100644
--- a/tools/testing/selftests/net/psock_fanout.c
+++ b/tools/testing/selftests/net/psock_fanout.c
@@ -50,6 +50,7 @@
#include <linux/filter.h>
#include <linux/bpf.h>
#include <linux/if_packet.h>
+#include <net/if.h>
#include <net/ethernet.h>
#include <netinet/ip.h>
#include <netinet/udp.h>
@@ -73,14 +74,29 @@
* @return -1 if mode is bad, a valid socket otherwise */
static int sock_fanout_open(uint16_t typeflags, uint16_t group_id)
{
+ struct sockaddr_ll addr = {0};
int fd, val;
- fd = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_IP));
+ fd = socket(PF_PACKET, SOCK_RAW, 0);
if (fd < 0) {
perror("socket packet");
exit(1);
}
+ pair_udp_setfilter(fd);
+
+ addr.sll_family = AF_PACKET;
+ addr.sll_protocol = htons(ETH_P_IP);
+ addr.sll_ifindex = if_nametoindex("lo");
+ if (addr.sll_ifindex == 0) {
+ perror("if_nametoindex");
+ exit(1);
+ }
+ if (bind(fd, (void *) &addr, sizeof(addr))) {
+ perror("bind packet");
+ exit(1);
+ }
+
val = (((int) typeflags) << 16) | group_id;
if (setsockopt(fd, SOL_PACKET, PACKET_FANOUT, &val, sizeof(val))) {
if (close(fd)) {
@@ -90,7 +106,6 @@ static int sock_fanout_open(uint16_t typeflags, uint16_t group_id)
return -1;
}
- pair_udp_setfilter(fd);
return fd;
}
@@ -229,7 +244,7 @@ static int sock_fanout_read(int fds[], char *rings[], const int expect[])
if ((!(ret[0] == expect[0] && ret[1] == expect[1])) &&
(!(ret[0] == expect[1] && ret[1] == expect[0]))) {
- fprintf(stderr, "ERROR: incorrect queue lengths\n");
+ fprintf(stderr, "warning: incorrect queue lengths\n");
return 1;
}
@@ -348,7 +363,8 @@ static int test_datapath(uint16_t typeflags, int port_off,
uint8_t type = typeflags & 0xFF;
int fds[2], fds_udp[2][2], ret;
- fprintf(stderr, "test: datapath 0x%hx\n", typeflags);
+ fprintf(stderr, "\ntest: datapath 0x%hx ports %hu,%hu\n",
+ typeflags, PORT_BASE, PORT_BASE + port_off);
fds[0] = sock_fanout_open(typeflags, 0);
fds[1] = sock_fanout_open(typeflags, 0);
@@ -419,7 +435,7 @@ int main(int argc, char **argv)
const int expect_cpu1[2][2] = { { 0, 20 }, { 0, 20 } };
const int expect_bpf[2][2] = { { 15, 5 }, { 15, 20 } };
const int expect_uniqueid[2][2] = { { 20, 20}, { 20, 20 } };
- int port_off = 2, tries = 5, ret;
+ int port_off = 2, tries = 20, ret;
test_control_single();
test_control_group();
@@ -428,10 +444,14 @@ int main(int argc, char **argv)
/* find a set of ports that do not collide onto the same socket */
ret = test_datapath(PACKET_FANOUT_HASH, port_off,
expect_hash[0], expect_hash[1]);
- while (ret && tries--) {
+ while (ret) {
fprintf(stderr, "info: trying alternate ports (%d)\n", tries);
ret = test_datapath(PACKET_FANOUT_HASH, ++port_off,
expect_hash[0], expect_hash[1]);
+ if (!--tries) {
+ fprintf(stderr, "too many collisions\n");
+ return 1;
+ }
}
ret |= test_datapath(PACKET_FANOUT_HASH | PACKET_FANOUT_FLAG_ROLLOVER,
diff --git a/tools/testing/selftests/net/run_afpackettests b/tools/testing/selftests/net/run_afpackettests
index 21fe149e3de1..bea079edc278 100755
--- a/tools/testing/selftests/net/run_afpackettests
+++ b/tools/testing/selftests/net/run_afpackettests
@@ -9,7 +9,7 @@ fi
echo "--------------------"
echo "running psock_fanout test"
echo "--------------------"
-./psock_fanout
+./in_netns.sh ./psock_fanout
if [ $? -ne 0 ]; then
echo "[FAIL]"
else
@@ -19,7 +19,7 @@ fi
echo "--------------------"
echo "running psock_tpacket test"
echo "--------------------"
-./psock_tpacket
+./in_netns.sh ./psock_tpacket
if [ $? -ne 0 ]; then
echo "[FAIL]"
else