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| author | Venkateswararao Jujjuri (JV) <jvrao@linux.vnet.ibm.com> | 2010-06-09 11:21:15 -0700 |
|---|---|---|
| committer | Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2010-09-08 22:56:40 +0530 |
| commit | b2c224be1941200e87df73bd937925f3bdf8cddc (patch) | |
| tree | a7a6aa1b99f8e00c73b8d8d946be1717449c73c7 | |
| parent | c79ce737478bbc419bd107c0bb369c473effef1e (diff) | |
| download | qemu-b2c224be1941200e87df73bd937925f3bdf8cddc.zip qemu-b2c224be1941200e87df73bd937925f3bdf8cddc.tar.gz qemu-b2c224be1941200e87df73bd937925f3bdf8cddc.tar.bz2 | |
[virtio-9p] Implement TLINK for 9P2000.L
Create a Hardlink.
SYNOPSIS
size[4] Tlink tag[2] dfid[4] oldfid[4] newpath[s]
size[4] Rlink tag[2]
DESCRIPTION
Create a link 'newpath' in directory pointed by dfid linking to oldfid path.
Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
| -rw-r--r-- | hw/virtio-9p-debug.c | 9 | ||||
| -rw-r--r-- | hw/virtio-9p.c | 38 | ||||
| -rw-r--r-- | hw/virtio-9p.h | 2 |
3 files changed, 49 insertions, 0 deletions
diff --git a/hw/virtio-9p-debug.c b/hw/virtio-9p-debug.c index a880b13..2e61e9d 100644 --- a/hw/virtio-9p-debug.c +++ b/hw/virtio-9p-debug.c @@ -497,6 +497,15 @@ void pprint_pdu(V9fsPDU *pdu) case P9_RCLUNK: fprintf(llogfile, "RCLUNK: ("); break; + case P9_TLINK: + fprintf(llogfile, "TLINK: ("); + pprint_int32(pdu, 0, &offset, "fid"); + pprint_str(pdu, 0, &offset, ", oldpath"); + pprint_str(pdu, 0, &offset, ", newpath"); + break; + case P9_RLINK: + fprintf(llogfile, "RLINK: ("); + break; case P9_TREMOVE: fprintf(llogfile, "TREMOVE: ("); pprint_int32(pdu, 0, &offset, "fid"); diff --git a/hw/virtio-9p.c b/hw/virtio-9p.c index 39e63cb..d1c3cf8 100644 --- a/hw/virtio-9p.c +++ b/hw/virtio-9p.c @@ -2307,6 +2307,43 @@ static void v9fs_flush(V9fsState *s, V9fsPDU *pdu) complete_pdu(s, pdu, 7); } +static void v9fs_link(V9fsState *s, V9fsPDU *pdu) +{ + int32_t dfid, oldfid; + V9fsFidState *dfidp, *oldfidp; + V9fsString name, fullname; + size_t offset = 7; + int err = 0; + + v9fs_string_init(&fullname); + + pdu_unmarshal(pdu, offset, "dds", &dfid, &oldfid, &name); + + dfidp = lookup_fid(s, dfid); + if (dfidp == NULL) { + err = -errno; + goto out; + } + + oldfidp = lookup_fid(s, oldfid); + if (oldfidp == NULL) { + err = -errno; + goto out; + } + + v9fs_string_sprintf(&fullname, "%s/%s", dfidp->path.data, name.data); + err = offset; + err = v9fs_do_link(s, &oldfidp->path, &fullname); + if (err) { + err = -errno; + } + v9fs_string_free(&fullname); + +out: + v9fs_string_free(&name); + complete_pdu(s, pdu, err); +} + static void v9fs_remove_post_remove(V9fsState *s, V9fsRemoveState *vs, int err) { @@ -2680,6 +2717,7 @@ static pdu_handler_t *pdu_handlers[] = { [P9_TAUTH] = v9fs_auth, #endif [P9_TFLUSH] = v9fs_flush, + [P9_TLINK] = v9fs_link, [P9_TCREATE] = v9fs_create, [P9_TWRITE] = v9fs_write, [P9_TWSTAT] = v9fs_wstat, diff --git a/hw/virtio-9p.h b/hw/virtio-9p.h index ebf44a7..d48776f 100644 --- a/hw/virtio-9p.h +++ b/hw/virtio-9p.h @@ -21,6 +21,8 @@ enum { P9_RSETATTR, P9_TREADDIR = 40, P9_RREADDIR, + P9_TLINK = 70, + P9_RLINK, P9_TVERSION = 100, P9_RVERSION, P9_TAUTH = 102, |