Revision c1568af5 hw/virtio-9p.c
| b/hw/virtio-9p.c | ||
|---|---|---|
| 187 | 187 |
return s->ops->fstat(&s->ctx, fd, stbuf); |
| 188 | 188 |
} |
| 189 | 189 |
|
| 190 |
static int v9fs_do_open2(V9fsState *s, V9fsCreateState *vs) |
|
| 190 |
static int v9fs_do_open2(V9fsState *s, char *fullname, uid_t uid, gid_t gid, |
|
| 191 |
int flags, int mode) |
|
| 191 | 192 |
{
|
| 192 | 193 |
FsCred cred; |
| 193 |
int flags; |
|
| 194 | 194 |
|
| 195 | 195 |
cred_init(&cred); |
| 196 |
cred.fc_uid = vs->fidp->uid; |
|
| 197 |
cred.fc_mode = vs->perm & 0777; |
|
| 198 |
flags = omode_to_uflags(vs->mode) | O_CREAT; |
|
| 196 |
cred.fc_uid = uid; |
|
| 197 |
cred.fc_gid = gid; |
|
| 198 |
cred.fc_mode = mode & 07777; |
|
| 199 |
flags = flags; |
|
| 199 | 200 |
|
| 200 |
return s->ops->open2(&s->ctx, vs->fullname.data, flags, &cred);
|
|
| 201 |
return s->ops->open2(&s->ctx, fullname, flags, &cred);
|
|
| 201 | 202 |
} |
| 202 | 203 |
|
| 203 | 204 |
static int v9fs_do_symlink(V9fsState *s, V9fsFidState *fidp, |
| ... | ... | |
| 1671 | 1672 |
qemu_free(vs); |
| 1672 | 1673 |
} |
| 1673 | 1674 |
|
| 1675 |
static void v9fs_post_lcreate(V9fsState *s, V9fsLcreateState *vs, int err) |
|
| 1676 |
{
|
|
| 1677 |
if (err == 0) {
|
|
| 1678 |
v9fs_string_copy(&vs->fidp->path, &vs->fullname); |
|
| 1679 |
stat_to_qid(&vs->stbuf, &vs->qid); |
|
| 1680 |
vs->offset += pdu_marshal(vs->pdu, vs->offset, "Qd", &vs->qid, |
|
| 1681 |
&vs->iounit); |
|
| 1682 |
err = vs->offset; |
|
| 1683 |
} else {
|
|
| 1684 |
err = -errno; |
|
| 1685 |
} |
|
| 1686 |
|
|
| 1687 |
complete_pdu(s, vs->pdu, err); |
|
| 1688 |
v9fs_string_free(&vs->name); |
|
| 1689 |
v9fs_string_free(&vs->fullname); |
|
| 1690 |
qemu_free(vs); |
|
| 1691 |
} |
|
| 1692 |
|
|
| 1693 |
static void v9fs_lcreate_post_get_iounit(V9fsState *s, V9fsLcreateState *vs, |
|
| 1694 |
int err) |
|
| 1695 |
{
|
|
| 1696 |
if (err) {
|
|
| 1697 |
err = -errno; |
|
| 1698 |
goto out; |
|
| 1699 |
} |
|
| 1700 |
err = v9fs_do_lstat(s, &vs->fullname, &vs->stbuf); |
|
| 1701 |
|
|
| 1702 |
out: |
|
| 1703 |
v9fs_post_lcreate(s, vs, err); |
|
| 1704 |
} |
|
| 1705 |
|
|
| 1706 |
static void v9fs_lcreate_post_do_open2(V9fsState *s, V9fsLcreateState *vs, |
|
| 1707 |
int err) |
|
| 1708 |
{
|
|
| 1709 |
if (vs->fidp->fd == -1) {
|
|
| 1710 |
err = -errno; |
|
| 1711 |
goto out; |
|
| 1712 |
} |
|
| 1713 |
vs->iounit = get_iounit(s, &vs->fullname); |
|
| 1714 |
v9fs_lcreate_post_get_iounit(s, vs, err); |
|
| 1715 |
return; |
|
| 1716 |
|
|
| 1717 |
out: |
|
| 1718 |
v9fs_post_lcreate(s, vs, err); |
|
| 1719 |
} |
|
| 1720 |
|
|
| 1721 |
static void v9fs_lcreate(V9fsState *s, V9fsPDU *pdu) |
|
| 1722 |
{
|
|
| 1723 |
int32_t dfid, flags, mode; |
|
| 1724 |
gid_t gid; |
|
| 1725 |
V9fsLcreateState *vs; |
|
| 1726 |
ssize_t err = 0; |
|
| 1727 |
|
|
| 1728 |
vs = qemu_malloc(sizeof(*vs)); |
|
| 1729 |
vs->pdu = pdu; |
|
| 1730 |
vs->offset = 7; |
|
| 1731 |
|
|
| 1732 |
v9fs_string_init(&vs->fullname); |
|
| 1733 |
|
|
| 1734 |
pdu_unmarshal(vs->pdu, vs->offset, "dsddd", &dfid, &vs->name, &flags, |
|
| 1735 |
&mode, &gid); |
|
| 1736 |
|
|
| 1737 |
vs->fidp = lookup_fid(s, dfid); |
|
| 1738 |
if (vs->fidp == NULL) {
|
|
| 1739 |
err = -ENOENT; |
|
| 1740 |
goto out; |
|
| 1741 |
} |
|
| 1742 |
|
|
| 1743 |
v9fs_string_sprintf(&vs->fullname, "%s/%s", vs->fidp->path.data, |
|
| 1744 |
vs->name.data); |
|
| 1745 |
|
|
| 1746 |
vs->fidp->fd = v9fs_do_open2(s, vs->fullname.data, vs->fidp->uid, |
|
| 1747 |
gid, flags, mode); |
|
| 1748 |
v9fs_lcreate_post_do_open2(s, vs, err); |
|
| 1749 |
return; |
|
| 1750 |
|
|
| 1751 |
out: |
|
| 1752 |
complete_pdu(s, vs->pdu, err); |
|
| 1753 |
v9fs_string_free(&vs->name); |
|
| 1754 |
qemu_free(vs); |
|
| 1755 |
} |
|
| 1756 |
|
|
| 1674 | 1757 |
static void v9fs_clunk(V9fsState *s, V9fsPDU *pdu) |
| 1675 | 1758 |
{
|
| 1676 | 1759 |
int32_t fid; |
| ... | ... | |
| 2258 | 2341 |
err = v9fs_do_mknod(s, vs, S_IFSOCK | (vs->perm & 0777), 0); |
| 2259 | 2342 |
v9fs_post_create(s, vs, err); |
| 2260 | 2343 |
} else {
|
| 2261 |
vs->fidp->fd = v9fs_do_open2(s, vs); |
|
| 2344 |
vs->fidp->fd = v9fs_do_open2(s, vs->fullname.data, vs->fidp->uid, |
|
| 2345 |
-1, omode_to_uflags(vs->mode)|O_CREAT, vs->perm); |
|
| 2346 |
|
|
| 2262 | 2347 |
v9fs_create_post_open2(s, vs, err); |
| 2263 | 2348 |
} |
| 2264 | 2349 |
|
| ... | ... | |
| 2785 | 2870 |
[P9_TLINK] = v9fs_link, |
| 2786 | 2871 |
[P9_TSYMLINK] = v9fs_symlink, |
| 2787 | 2872 |
[P9_TCREATE] = v9fs_create, |
| 2873 |
[P9_TLCREATE] = v9fs_lcreate, |
|
| 2788 | 2874 |
[P9_TWRITE] = v9fs_write, |
| 2789 | 2875 |
[P9_TWSTAT] = v9fs_wstat, |
| 2790 | 2876 |
[P9_TREMOVE] = v9fs_remove, |
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