diff options
| -rw-r--r-- | hw/9pfs/virtio-9p.c | 40 | ||||
| -rw-r--r-- | hw/9pfs/virtio-9p.h | 2 |
2 files changed, 42 insertions, 0 deletions
diff --git a/hw/9pfs/virtio-9p.c b/hw/9pfs/virtio-9p.c index 0293fe42b1..d28edb799a 100644 --- a/hw/9pfs/virtio-9p.c +++ b/hw/9pfs/virtio-9p.c @@ -2338,6 +2338,45 @@ out_nofid: complete_pdu(pdu->s, pdu, err); } +static void v9fs_unlinkat(void *opaque) +{ + int err = 0; + V9fsString name; + int32_t dfid, flags; + size_t offset = 7; + V9fsFidState *dfidp; + V9fsPDU *pdu = opaque; + V9fsString full_name; + + pdu_unmarshal(pdu, offset, "dsd", &dfid, &name, &flags); + + dfidp = get_fid(pdu->s, dfid); + if (dfidp == NULL) { + err = -EINVAL; + goto out_nofid; + } + v9fs_string_init(&full_name); + v9fs_string_sprintf(&full_name, "%s/%s", dfidp->path.data, name.data); + /* + * IF the file is unlinked, we cannot reopen + * the file later. So don't reclaim fd + */ + err = v9fs_mark_fids_unreclaim(pdu->s, &full_name); + if (err < 0) { + goto out_err; + } + err = v9fs_co_remove(pdu->s, &full_name); + if (!err) { + err = offset; + } +out_err: + put_fid(pdu->s, dfidp); + v9fs_string_free(&full_name); +out_nofid: + complete_pdu(pdu->s, pdu, err); + v9fs_string_free(&name); +} + static int v9fs_complete_rename(V9fsState *s, V9fsFidState *fidp, int32_t newdirfid, V9fsString *name) { @@ -3040,6 +3079,7 @@ static CoroutineEntry *pdu_co_handlers[] = { [P9_TGETLOCK] = v9fs_getlock, [P9_TRENAMEAT] = v9fs_renameat, [P9_TREADLINK] = v9fs_readlink, + [P9_TUNLINKAT] = v9fs_unlinkat, [P9_TMKDIR] = v9fs_mkdir, [P9_TVERSION] = v9fs_version, [P9_TLOPEN] = v9fs_open, diff --git a/hw/9pfs/virtio-9p.h b/hw/9pfs/virtio-9p.h index 49507825b6..17d44b41ca 100644 --- a/hw/9pfs/virtio-9p.h +++ b/hw/9pfs/virtio-9p.h @@ -52,6 +52,8 @@ enum { P9_RMKDIR, P9_TRENAMEAT = 74, P9_RRENAMEAT, + P9_TUNLINKAT = 76, + P9_RUNLINKAT, P9_TVERSION = 100, P9_RVERSION, P9_TAUTH = 102, |