[bpf PATCH 3/3] bpf: test_maps, only support ESTABLISHED socks

[John Fastabend]

Ensure that sockets added to a sock{map|hash} that is not in the
ESTABLISHED state is rejected.

Fixes: 1aa12bdf1bfb ("bpf: sockmap, add sock close() hook to remove socks")
Signed-off-by: John Fastabend <john.fastab...@gmail.com>
---
 tools/testing/selftests/bpf/test_maps.c |   10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/tools/testing/selftests/bpf/test_maps.c 
b/tools/testing/selftests/bpf/test_maps.c
index 6f54f84..0f2090f 100644
--- a/tools/testing/selftests/bpf/test_maps.c
+++ b/tools/testing/selftests/bpf/test_maps.c
@@ -580,7 +580,11 @@ static void test_sockmap(int tasks, void *data)
        /* Test update without programs */
        for (i = 0; i < 6; i++) {
                err = bpf_map_update_elem(fd, &i, &sfd[i], BPF_ANY);
-               if (err) {
+               if (i < 2 && !err) {
+                       printf("Allowed update sockmap '%i:%i' not in 
ESTABLISHED\n",
+                              i, sfd[i]);
+                       goto out_sockmap;
+               } else if (i > 1 && err) {
                        printf("Failed noprog update sockmap '%i:%i'\n",
                               i, sfd[i]);
                        goto out_sockmap;
@@ -741,7 +745,7 @@ static void test_sockmap(int tasks, void *data)
        }
 
        /* Test map update elem afterwards fd lives in fd and map_fd */
-       for (i = 0; i < 6; i++) {
+       for (i = 2; i < 6; i++) {
                err = bpf_map_update_elem(map_fd_rx, &i, &sfd[i], BPF_ANY);
                if (err) {
                        printf("Failed map_fd_rx update sockmap %i '%i:%i'\n",
@@ -845,7 +849,7 @@ static void test_sockmap(int tasks, void *data)
        }
 
        /* Delete the elems without programs */
-       for (i = 0; i < 6; i++) {
+       for (i = 2; i < 6; i++) {
                err = bpf_map_delete_elem(fd, &i);
                if (err) {
                        printf("Failed delete sockmap %i '%i:%i'\n",