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bpf: test_maps: cleanup sockmaps when test ends 

Bug: BPF programs and maps related to sockmaps test exist
in memory even after test_maps ends.

This patch fixes it as a short term workaround (sockmap
kernel side needs real fixing) by empyting sockmaps when
test ends.

Fixes: 6f6d33f3b3 ("bpf: selftests add sockmap tests")
Signed-off-by: Prashant Bhole <bhole_prashant_q7@lab.ntt.co.jp>
[ daniel: Note on workaround. ]
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
This commit is contained in:
Prashant Bhole 2018-01-23 13:30:44 +09:00 committed by Daniel Borkmann
parent 8e6875250a
commit 783687810e
1 changed files with 12 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
tools/testing/selftests/bpf/test_maps.c
View File

@ -463,7 +463,7 @@ static void test_devmap(int task, void *data)
#define SOCKMAP_VERDICT_PROG "./sockmap_verdict_prog.o"
static void test_sockmap(int tasks, void *data)
{
int one = 1, map_fd_rx, map_fd_tx, map_fd_break, s, sc, rc;
int one = 1, map_fd_rx = 0, map_fd_tx = 0, map_fd_break, s, sc, rc;
struct bpf_map *bpf_map_rx, *bpf_map_tx, *bpf_map_break;
int ports[] = {50200, 50201, 50202, 50204};
int err, i, fd, udp, sfd[6] = {0xdeadbeef};
@ -868,9 +868,12 @@ static void test_sockmap(int tasks, void *data)
goto out_sockmap;
}
/* Test map close sockets */
for (i = 0; i < 6; i++)
/* Test map close sockets and empty maps */
for (i = 0; i < 6; i++) {
bpf_map_delete_elem(map_fd_tx, &i);
bpf_map_delete_elem(map_fd_rx, &i);
close(sfd[i]);
}
close(fd);
close(map_fd_rx);
bpf_object__close(obj);
@ -881,8 +884,13 @@ static void test_sockmap(int tasks, void *data)
printf("Failed to create sockmap '%i:%s'!\n", i, strerror(errno));
exit(1);
out_sockmap:
for (i = 0; i < 6; i++)
for (i = 0; i < 6; i++) {
if (map_fd_tx)
bpf_map_delete_elem(map_fd_tx, &i);
if (map_fd_rx)
bpf_map_delete_elem(map_fd_rx, &i);
close(sfd[i]);
}
close(fd);
exit(1);
}