test: (mkfds::bpf-map) new factory

Signed-off-by: Masatake YAMATO <yamato@redhat.com>

diff --git a/tests/helpers/test_mkfds.c b/tests/helpers/test_mkfds.c
index b0bb8b71a4276ce59ea2001509244550c27d8453..54b18db75928dcad99ede69017f502fd6cc812e3 100644 (file)
--- a/tests/helpers/test_mkfds.c
+++ b/tests/helpers/test_mkfds.c
@@ -2953,6 +2953,44 @@ static void *make_some_pipes(const struct factory *factory _U_, struct fdesc fde
        return NULL;
 }
 
+static void *make_bpf_map(const struct factory *factory _U_, struct fdesc fdescs[],
+                         int argc _U_, char ** argv _U_)
+{
+       struct arg map_type_id = decode_arg("map-type-id", factory->params, argc, argv);
+       int imap_type_id = ARG_INTEGER(map_type_id);
+
+       int bfd;
+       union bpf_attr attr = {
+               .map_type = imap_type_id,
+               .key_size = 4,
+               .value_size = 4,
+               .max_entries = 10,
+       };
+
+       bfd = syscall(__NR_bpf, BPF_MAP_CREATE, &attr, sizeof(attr));
+       if (bfd < 0)
+               err((errno == ENOSYS? EXIT_ENOSYS: EXIT_FAILURE),
+                   "failed in bpf(BPF_MAP_CREATE)");
+
+       if (bfd != fdescs[0].fd) {
+               if (dup2(bfd, fdescs[0].fd) < 0) {
+                       int e = errno;
+                       close(bfd);
+                       errno = e;
+                       err(EXIT_FAILURE, "failed to dup %d -> %d", bfd, fdescs[0].fd);
+               }
+               close(bfd);
+       }
+
+       fdescs[0] = (struct fdesc){
+               .fd    = fdescs[0].fd,
+               .close = close_fdesc,
+               .data  = NULL
+       };
+
+       return NULL;
+}
+
 #define PARAM_END { .name = NULL, }
 static const struct factory factories[] = {
        {
@@ -3714,6 +3752,24 @@ static const struct factory factories[] = {
                        PARAM_END
                }
        },
+       {
+               .name = "bpf-map",
+               .desc = "make bpf-map",
+               .priv = true,
+               .N    = 1,
+               .EX_N = 0,
+               .make = make_bpf_map,
+               .params = (struct parameter []) {
+                       {
+                               .name = "map-type-id",
+                               .type = PTYPE_INTEGER,
+                               .desc = "map type by id",
+                               .defv.integer = 1,
+                       },
+                       PARAM_END
+               }
+       },
+
 };
 
 static int count_parameters(const struct factory *factory)