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authorMike Maloney <maloney@google.com>2017-04-18 18:14:16 +0300
committerDavid S. Miller <davem@davemloft.net>2017-04-20 22:39:19 +0300
commitc1f8d0f98c3bc12393821c1bf00d8eaa0bd58bd8 (patch)
tree71f19fe662ccc3a778346ffd4c3b43c291ca0ac0 /tools/testing/selftests/net/psock_lib.h
parent3018e947d7fd536d57e2b550c33e456d921fff8c (diff)
downloadlinux-c1f8d0f98c3bc12393821c1bf00d8eaa0bd58bd8.tar.xz
selftests/net: Fixes psock_fanout CBPF test case
'psock_fanout' has been failing since commit 4d7b9dc1f36a9 ("tools: psock_lib: harden socket filter used by psock tests"). That commit changed the CBPF filter to examine the full ethernet frame, and was tested on 'psock_tpacket' which uses SOCK_RAW. But 'psock_fanout' was also using this same CBPF in two places, for filtering and fanout, on a SOCK_DGRAM socket. Change 'psock_fanout' to use SOCK_RAW so that the CBPF program used with SO_ATTACH_FILTER can examine the entire frame. Create a new CBPF program for use with PACKET_FANOUT_DATA which ignores the header, as it cannot see the ethernet header. Tested: Ran tools/testing/selftests/net/psock_{fanout,tpacket} 10 times, and they all passed. Fixes: 4d7b9dc1f36a9 ("tools: psock_lib: harden socket filter used by psock tests") Signed-off-by: 'Mike Maloney <maloneykernel@gmail.com>' Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'tools/testing/selftests/net/psock_lib.h')
-rw-r--r--tools/testing/selftests/net/psock_lib.h13
1 files changed, 3 insertions, 10 deletions
diff --git a/tools/testing/selftests/net/psock_lib.h b/tools/testing/selftests/net/psock_lib.h
index a77da88bf946..7d990d6c861b 100644
--- a/tools/testing/selftests/net/psock_lib.h
+++ b/tools/testing/selftests/net/psock_lib.h
@@ -38,7 +38,7 @@
# define __maybe_unused __attribute__ ((__unused__))
#endif
-static __maybe_unused void sock_setfilter(int fd, int lvl, int optnum)
+static __maybe_unused void pair_udp_setfilter(int fd)
{
/* the filter below checks for all of the following conditions that
* are based on the contents of create_payload()
@@ -76,23 +76,16 @@ static __maybe_unused void sock_setfilter(int fd, int lvl, int optnum)
};
struct sock_fprog bpf_prog;
- if (lvl == SOL_PACKET && optnum == PACKET_FANOUT_DATA)
- bpf_filter[5].code = 0x16; /* RET A */
-
bpf_prog.filter = bpf_filter;
bpf_prog.len = sizeof(bpf_filter) / sizeof(struct sock_filter);
- if (setsockopt(fd, lvl, optnum, &bpf_prog,
+
+ if (setsockopt(fd, SOL_SOCKET, SO_ATTACH_FILTER, &bpf_prog,
sizeof(bpf_prog))) {
perror("setsockopt SO_ATTACH_FILTER");
exit(1);
}
}
-static __maybe_unused void pair_udp_setfilter(int fd)
-{
- sock_setfilter(fd, SOL_SOCKET, SO_ATTACH_FILTER);
-}
-
static __maybe_unused void pair_udp_open(int fds[], uint16_t port)
{
struct sockaddr_in saddr, daddr;