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authorDaniel Borkmann <daniel@iogearbox.net>2018-02-09 14:49:44 +0100
committerDavid S. Miller <davem@davemloft.net>2018-02-09 14:46:37 -0500
commit941ff6f11c020913f5cddf543a9ec63475d7c082 (patch)
treed99421a9a776126da53568d094c34a3e6ec96924
parent07f2c7ab6f8d0a7e7c5764c4e6cc9c52951b9d9c (diff)
bpf: fix rlimit in reuseport net selftest
Fix two issues in the reuseport_bpf selftests that were reported by Linaro CI: [...] + ./reuseport_bpf ---- IPv4 UDP ---- Testing EBPF mod 10... Reprograming, testing mod 5... ./reuseport_bpf: ebpf error. log: 0: (bf) r6 = r1 1: (20) r0 = *(u32 *)skb[0] 2: (97) r0 %= 10 3: (95) exit processed 4 insns : Operation not permitted + echo FAIL [...] ---- IPv4 TCP ---- Testing EBPF mod 10... ./reuseport_bpf: failed to bind send socket: Address already in use + echo FAIL [...] For the former adjust rlimit since this was the cause of failure for loading the BPF prog, and for the latter add SO_REUSEADDR. Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org> Link: https://bugs.linaro.org/show_bug.cgi?id=3502 Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--tools/testing/selftests/net/reuseport_bpf.c21
1 files changed, 20 insertions, 1 deletions
diff --git a/tools/testing/selftests/net/reuseport_bpf.c b/tools/testing/selftests/net/reuseport_bpf.c
index 4a8217448f20..cad14cd0ea92 100644
--- a/tools/testing/selftests/net/reuseport_bpf.c
+++ b/tools/testing/selftests/net/reuseport_bpf.c
@@ -21,6 +21,7 @@
#include <sys/epoll.h>
#include <sys/types.h>
#include <sys/socket.h>
+#include <sys/resource.h>
#include <unistd.h>
#ifndef ARRAY_SIZE
@@ -190,11 +191,14 @@ static void send_from(struct test_params p, uint16_t sport, char *buf,
struct sockaddr * const saddr = new_any_sockaddr(p.send_family, sport);
struct sockaddr * const daddr =
new_loopback_sockaddr(p.send_family, p.recv_port);
- const int fd = socket(p.send_family, p.protocol, 0);
+ const int fd = socket(p.send_family, p.protocol, 0), one = 1;
if (fd < 0)
error(1, errno, "failed to create send socket");
+ if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &one, sizeof(one)))
+ error(1, errno, "failed to set reuseaddr");
+
if (bind(fd, saddr, sockaddr_size()))
error(1, errno, "failed to bind send socket");
@@ -433,6 +437,21 @@ void enable_fastopen(void)
}
}
+static struct rlimit rlim_old, rlim_new;
+
+static __attribute__((constructor)) void main_ctor(void)
+{
+ getrlimit(RLIMIT_MEMLOCK, &rlim_old);
+ rlim_new.rlim_cur = rlim_old.rlim_cur + (1UL << 20);
+ rlim_new.rlim_max = rlim_old.rlim_max + (1UL << 20);
+ setrlimit(RLIMIT_MEMLOCK, &rlim_new);
+}
+
+static __attribute__((destructor)) void main_dtor(void)
+{
+ setrlimit(RLIMIT_MEMLOCK, &rlim_old);
+}
+
int main(void)
{
fprintf(stderr, "---- IPv4 UDP ----\n");