Implement kernfs.

PiperOrigin-RevId: 285231002

1 files changed, 60 insertions, 0 deletions

diff --git a/pkg/sentry/fsimpl/kernfs/BUILD b/pkg/sentry/fsimpl/kernfs/BUILD
new file mode 100644
index 000000000..52596c090
--- /dev/null
+++ b/pkg/sentry/fsimpl/kernfs/BUILD
@@ -0,0 +1,60 @@
+load("//tools/go_stateify:defs.bzl", "go_library")
+load("@io_bazel_rules_go//go:def.bzl", "go_test")
+load("//tools/go_generics:defs.bzl", "go_template_instance")
+
+package(licenses = ["notice"])
+
+go_template_instance(
+    name = "slot_list",
+    out = "slot_list.go",
+    package = "kernfs",
+    prefix = "slot",
+    template = "//pkg/ilist:generic_list",
+    types = {
+        "Element": "*slot",
+        "Linker": "*slot",
+    },
+)
+
+go_library(
+    name = "kernfs",
+    srcs = [
+        "dynamic_bytes_file.go",
+        "fd_impl_util.go",
+        "filesystem.go",
+        "inode_impl_util.go",
+        "kernfs.go",
+        "slot_list.go",
+    ],
+    importpath = "gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs",
+    visibility = ["//pkg/sentry:internal"],
+    deps = [
+        "//pkg/abi/linux",
+        "//pkg/fspath",
+        "//pkg/log",
+        "//pkg/refs",
+        "//pkg/sentry/context",
+        "//pkg/sentry/kernel/auth",
+        "//pkg/sentry/memmap",
+        "//pkg/sentry/usermem",
+        "//pkg/sentry/vfs",
+        "//pkg/syserror",
+    ],
+)
+
+go_test(
+    name = "kernfs_test",
+    size = "small",
+    srcs = ["kernfs_test.go"],
+    deps = [
+        ":kernfs",
+        "//pkg/abi/linux",
+        "//pkg/sentry/context",
+        "//pkg/sentry/context/contexttest",
+        "//pkg/sentry/kernel/auth",
+        "//pkg/sentry/usermem",
+        "//pkg/sentry/vfs",
+        "//pkg/syserror",
+        "@com_github_google_go-cmp//cmp:go_default_library",
+    ],
+)