[Minios-devel] [UNIKRAFT PATCH 1/1] lib/vfscore: Add missing vnop operations to stdio

[Vlad-Andrei BĂDOIU (78692) <vlad_andrei.badoiu@xxxxxxxxxxxxxxx>]

Most of the vnop operations are missing from the stdio. This causes a page fault
when calling function such as lseek on stdio. To solve this we register the
missing operation.

Signed-off-by: Vlad-Andrei Badoiu <vlad_andrei.badoiu@xxxxxxxxxxxxxxx>
---
 lib/vfscore/stdio.c | 48 ++++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 45 insertions(+), 3 deletions(-)

diff --git a/lib/vfscore/stdio.c b/lib/vfscore/stdio.c
index 08335367..9536998c 100644
--- a/lib/vfscore/stdio.c
+++ b/lib/vfscore/stdio.c
@@ -41,6 +41,8 @@
 #include <vfscore/vnode.h>
 #include <unistd.h>
 #include <vfscore/uio.h>
+#include <vfscore/vnode.h>
+#include <vfscore/mount.h>
 
 static int __write_fn(void *dst __unused, void *src, size_t *cnt)
 {
@@ -127,10 +129,50 @@ stdio_getattr(struct vnode *vnode __unused, struct vattr 
*attr __unused)
        return 0;
 }
 
+#define stdio_open     ((vnop_open_t)vfscore_nullop)
+#define stdio_close    ((vnop_close_t)vfscore_nullop)
+#define stdio_seek     ((vnop_seek_t)vfscore_vop_nullop)
+#define stdio_ioctl    ((vnop_ioctl_t)vfscore_nullop)
+#define stdio_fsync    ((vnop_fsync_t)vfscore_vop_nullop)
+#define stdio_readdir  ((vnop_readdir_t)vfscore_vop_einval)
+#define stdio_lookup   ((vnop_lookup_t)vfscore_nullop)
+#define stdio_create   ((vnop_create_t)vfscore_vop_einval)
+#define stdio_remove   ((vnop_remove_t)vfscore_vop_einval)
+#define stdio_rename   ((vnop_rename_t)vfscore_vop_einval)
+#define stdio_mkdir    ((vnop_mkdir_t)vfscore_vop_einval)
+#define stdio_rmdir    ((vnop_rmdir_t)vfscore_vop_einval)
+#define stdio_setattr  ((vnop_setattr_t)vfscore_vop_eperm)
+#define stdio_inactive ((vnop_inactive_t)vfscore_vop_nullop)
+#define stdio_truncate ((vnop_truncate_t)vfscore_vop_nullop)
+#define stdio_link     ((vnop_link_t)vfscore_vop_eperm)
+#define stdio_fallocate        ((vnop_fallocate_t)vfscore_vop_nullop)
+#define stdio_readlink ((vnop_readlink_t)vfscore_vop_nullop)
+#define stdio_symlink  ((vnop_symlink_t)vfscore_vop_nullop)
+
 static struct vnops stdio_vnops = {
-       .vop_write = stdio_write,
-       .vop_read = stdio_read,
-       .vop_getattr = stdio_getattr,
+       stdio_open,             /* open */
+       stdio_close,            /* close */
+       stdio_read,             /* read */
+       stdio_write,            /* write */
+       stdio_seek,             /* seek */
+       stdio_ioctl,            /* ioctl */
+       stdio_fsync,            /* fsync */
+       stdio_readdir,          /* readdir */
+       stdio_lookup,           /* lookup */
+       stdio_create,           /* create */
+       stdio_remove,           /* remove */
+       stdio_rename,           /* remame */
+       stdio_mkdir,            /* mkdir */
+       stdio_rmdir,            /* rmdir */
+       stdio_getattr,          /* getattr */
+       stdio_setattr,          /* setattr */
+       stdio_inactive,         /* inactive */
+       stdio_truncate,         /* truncate */
+       stdio_link,             /* link */
+       (vnop_cache_t) NULL, /* arc */
+       stdio_fallocate,        /* fallocate */
+       stdio_readlink,         /* read link */
+       stdio_symlink,          /* symbolic link */
 };
 
 static struct vnode stdio_vnode = {
-- 
2.20.1


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