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path: root/hw/9pfs/virtio-9p.c
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Diffstat (limited to 'hw/9pfs/virtio-9p.c')
-rw-r--r--hw/9pfs/virtio-9p.c198
1 files changed, 63 insertions, 135 deletions
diff --git a/hw/9pfs/virtio-9p.c b/hw/9pfs/virtio-9p.c
index fae09009a5..124ca553e9 100644
--- a/hw/9pfs/virtio-9p.c
+++ b/hw/9pfs/virtio-9p.c
@@ -239,21 +239,6 @@ static int v9fs_do_statfs(V9fsState *s, V9fsString *path, struct statfs *stbuf)
return s->ops->statfs(&s->ctx, path->data, stbuf);
}
-static ssize_t v9fs_do_lgetxattr(V9fsState *s, V9fsString *path,
- V9fsString *xattr_name,
- void *value, size_t size)
-{
- return s->ops->lgetxattr(&s->ctx, path->data,
- xattr_name->data, value, size);
-}
-
-static ssize_t v9fs_do_llistxattr(V9fsState *s, V9fsString *path,
- void *value, size_t size)
-{
- return s->ops->llistxattr(&s->ctx, path->data,
- value, size);
-}
-
static int v9fs_do_lsetxattr(V9fsState *s, V9fsString *path,
V9fsString *xattr_name,
void *value, size_t size, int flags)
@@ -3271,149 +3256,92 @@ out:
qemu_free(vs);
}
-static void v9fs_post_xattr_getvalue(V9fsState *s, V9fsXattrState *vs, int err)
-{
-
- if (err < 0) {
- err = -errno;
- free_fid(s, vs->xattr_fidp->fid);
- goto out;
- }
- vs->offset += pdu_marshal(vs->pdu, vs->offset, "q", vs->size);
- err = vs->offset;
-out:
- complete_pdu(s, vs->pdu, err);
- v9fs_string_free(&vs->name);
- qemu_free(vs);
- return;
-}
-
-static void v9fs_post_xattr_check(V9fsState *s, V9fsXattrState *vs, ssize_t err)
-{
- if (err < 0) {
- err = -errno;
- free_fid(s, vs->xattr_fidp->fid);
- goto out;
- }
- /*
- * Read the xattr value
- */
- vs->xattr_fidp->fs.xattr.len = vs->size;
- vs->xattr_fidp->fid_type = P9_FID_XATTR;
- vs->xattr_fidp->fs.xattr.copied_len = -1;
- if (vs->size) {
- vs->xattr_fidp->fs.xattr.value = qemu_malloc(vs->size);
- err = v9fs_do_lgetxattr(s, &vs->xattr_fidp->path,
- &vs->name, vs->xattr_fidp->fs.xattr.value,
- vs->xattr_fidp->fs.xattr.len);
- }
- v9fs_post_xattr_getvalue(s, vs, err);
- return;
-out:
- complete_pdu(s, vs->pdu, err);
- v9fs_string_free(&vs->name);
- qemu_free(vs);
-}
-
-static void v9fs_post_lxattr_getvalue(V9fsState *s,
- V9fsXattrState *vs, int err)
-{
- if (err < 0) {
- err = -errno;
- free_fid(s, vs->xattr_fidp->fid);
- goto out;
- }
- vs->offset += pdu_marshal(vs->pdu, vs->offset, "q", vs->size);
- err = vs->offset;
-out:
- complete_pdu(s, vs->pdu, err);
- v9fs_string_free(&vs->name);
- qemu_free(vs);
- return;
-}
-
-static void v9fs_post_lxattr_check(V9fsState *s,
- V9fsXattrState *vs, ssize_t err)
-{
- if (err < 0) {
- err = -errno;
- free_fid(s, vs->xattr_fidp->fid);
- goto out;
- }
- /*
- * Read the xattr value
- */
- vs->xattr_fidp->fs.xattr.len = vs->size;
- vs->xattr_fidp->fid_type = P9_FID_XATTR;
- vs->xattr_fidp->fs.xattr.copied_len = -1;
- if (vs->size) {
- vs->xattr_fidp->fs.xattr.value = qemu_malloc(vs->size);
- err = v9fs_do_llistxattr(s, &vs->xattr_fidp->path,
- vs->xattr_fidp->fs.xattr.value,
- vs->xattr_fidp->fs.xattr.len);
- }
- v9fs_post_lxattr_getvalue(s, vs, err);
- return;
-out:
- complete_pdu(s, vs->pdu, err);
- v9fs_string_free(&vs->name);
- qemu_free(vs);
-}
-
static void v9fs_xattrwalk(void *opaque)
{
- V9fsPDU *pdu = opaque;
- V9fsState *s = pdu->s;
+ int64_t size;
+ V9fsString name;
ssize_t err = 0;
- V9fsXattrState *vs;
+ size_t offset = 7;
int32_t fid, newfid;
+ V9fsFidState *file_fidp;
+ V9fsFidState *xattr_fidp;
+ V9fsPDU *pdu = opaque;
+ V9fsState *s = pdu->s;
- vs = qemu_malloc(sizeof(*vs));
- vs->pdu = pdu;
- vs->offset = 7;
-
- pdu_unmarshal(vs->pdu, vs->offset, "dds", &fid, &newfid, &vs->name);
- vs->file_fidp = lookup_fid(s, fid);
- if (vs->file_fidp == NULL) {
+ pdu_unmarshal(pdu, offset, "dds", &fid, &newfid, &name);
+ file_fidp = lookup_fid(s, fid);
+ if (file_fidp == NULL) {
err = -ENOENT;
goto out;
}
-
- vs->xattr_fidp = alloc_fid(s, newfid);
- if (vs->xattr_fidp == NULL) {
+ xattr_fidp = alloc_fid(s, newfid);
+ if (xattr_fidp == NULL) {
err = -EINVAL;
goto out;
}
-
- v9fs_string_copy(&vs->xattr_fidp->path, &vs->file_fidp->path);
- if (vs->name.data[0] == 0) {
+ v9fs_string_copy(&xattr_fidp->path, &file_fidp->path);
+ if (name.data[0] == 0) {
/*
* listxattr request. Get the size first
*/
- vs->size = v9fs_do_llistxattr(s, &vs->xattr_fidp->path,
- NULL, 0);
- if (vs->size < 0) {
- err = vs->size;
+ size = v9fs_co_llistxattr(s, &xattr_fidp->path, NULL, 0);
+ if (size < 0) {
+ err = size;
+ free_fid(s, xattr_fidp->fid);
+ goto out;
}
- v9fs_post_lxattr_check(s, vs, err);
- return;
+ /*
+ * Read the xattr value
+ */
+ xattr_fidp->fs.xattr.len = size;
+ xattr_fidp->fid_type = P9_FID_XATTR;
+ xattr_fidp->fs.xattr.copied_len = -1;
+ if (size) {
+ xattr_fidp->fs.xattr.value = qemu_malloc(size);
+ err = v9fs_co_llistxattr(s, &xattr_fidp->path,
+ xattr_fidp->fs.xattr.value,
+ xattr_fidp->fs.xattr.len);
+ if (err < 0) {
+ free_fid(s, xattr_fidp->fid);
+ goto out;
+ }
+ }
+ offset += pdu_marshal(pdu, offset, "q", size);
+ err = offset;
} else {
/*
* specific xattr fid. We check for xattr
* presence also collect the xattr size
*/
- vs->size = v9fs_do_lgetxattr(s, &vs->xattr_fidp->path,
- &vs->name, NULL, 0);
- if (vs->size < 0) {
- err = vs->size;
+ size = v9fs_co_lgetxattr(s, &xattr_fidp->path,
+ &name, NULL, 0);
+ if (size < 0) {
+ err = size;
+ free_fid(s, xattr_fidp->fid);
+ goto out;
}
- v9fs_post_xattr_check(s, vs, err);
- return;
+ /*
+ * Read the xattr value
+ */
+ xattr_fidp->fs.xattr.len = size;
+ xattr_fidp->fid_type = P9_FID_XATTR;
+ xattr_fidp->fs.xattr.copied_len = -1;
+ if (size) {
+ xattr_fidp->fs.xattr.value = qemu_malloc(size);
+ err = v9fs_co_lgetxattr(s, &xattr_fidp->path,
+ &name, xattr_fidp->fs.xattr.value,
+ xattr_fidp->fs.xattr.len);
+ if (err < 0) {
+ free_fid(s, xattr_fidp->fid);
+ goto out;
+ }
+ }
+ offset += pdu_marshal(pdu, offset, "q", size);
+ err = offset;
}
out:
- complete_pdu(s, vs->pdu, err);
- v9fs_string_free(&vs->name);
- qemu_free(vs);
+ complete_pdu(s, pdu, err);
+ v9fs_string_free(&name);
}
static void v9fs_xattrcreate(void *opaque)
generated by cgit v1.2.3 (git 2.26.2) at 2024-12-27 08:15:50 +0000