virtio-9p: Add P9_TSTAT support
Implement P9_TSTAT support. This get the mount to work on the guest. [kiran@linux.vnet.ibm.com: malloc to qemu_malloc conversion] Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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@ -895,11 +895,62 @@ out:
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v9fs_string_free(&aname);
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}
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typedef struct V9fsStatState {
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V9fsPDU *pdu;
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size_t offset;
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V9fsStat v9stat;
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V9fsFidState *fidp;
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struct stat stbuf;
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} V9fsStatState;
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static void v9fs_stat_post_lstat(V9fsState *s, V9fsStatState *vs, int err)
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{
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if (err == -1) {
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err = -errno;
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goto out;
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}
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err = stat_to_v9stat(s, &vs->fidp->path, &vs->stbuf, &vs->v9stat);
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if (err) {
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goto out;
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}
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vs->offset += pdu_marshal(vs->pdu, vs->offset, "wS", 0, &vs->v9stat);
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err = vs->offset;
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out:
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complete_pdu(s, vs->pdu, err);
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v9fs_stat_free(&vs->v9stat);
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qemu_free(vs);
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}
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static void v9fs_stat(V9fsState *s, V9fsPDU *pdu)
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{
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if (debug_9p_pdu) {
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pprint_pdu(pdu);
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int32_t fid;
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V9fsStatState *vs;
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ssize_t err = 0;
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vs = qemu_malloc(sizeof(*vs));
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vs->pdu = pdu;
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vs->offset = 7;
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memset(&vs->v9stat, 0, sizeof(vs->v9stat));
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pdu_unmarshal(vs->pdu, vs->offset, "d", &fid);
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vs->fidp = lookup_fid(s, fid);
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if (vs->fidp == NULL) {
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err = -ENOENT;
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goto out;
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}
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err = v9fs_do_lstat(s, &vs->fidp->path, &vs->stbuf);
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v9fs_stat_post_lstat(s, vs, err);
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return;
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out:
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complete_pdu(s, vs->pdu, err);
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v9fs_stat_free(&vs->v9stat);
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qemu_free(vs);
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}
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static void v9fs_walk(V9fsState *s, V9fsPDU *pdu)
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