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9p: Define and implement TSYMLINK for 9P2000.L

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Create a symbolic link

SYNOPSIS

size[4] Tsymlink tag[2] fid[4] name[s] symtgt[s] gid[4]

size[4] Rsymlink tag[2] qid[13]

DESCRIPTION

Create a symbolic link named 'name' pointing to 'symtgt'.
gid represents the effective group id of the caller.
The  permissions of a symbolic link are irrelevant hence it is omitted
from the protocol.

Signed-off-by: Venkateswararao Jujjuri <[email protected]>
Reviewed-by: Sripathi Kodi <[email protected]>
Signed-off-by: Eric Van Hensbergen <[email protected]>
This commit is contained in:
Venkateswararao Jujjuri (JV) 2010-06-09 15:59:31 -07:00 • committed by Eric Van Hensbergen
commit 50cc42ff3d
4 changed files with 137 additions and 4 deletions
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34
net/9p/client.c
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@ -1095,6 +1095,40 @@ error:
}
EXPORT_SYMBOL(p9_client_fcreate);
int p9_client_symlink(struct p9_fid *dfid, char *name, char *symtgt, gid_t gid,
struct p9_qid *qid)
{
int err = 0;
struct p9_client *clnt;
struct p9_req_t *req;
P9_DPRINTK(P9_DEBUG_9P, ">>> TSYMLINK dfid %d name %s symtgt %s\n",
dfid->fid, name, symtgt);
clnt = dfid->clnt;
req = p9_client_rpc(clnt, P9_TSYMLINK, "dssd", dfid->fid, name, symtgt,
gid);
if (IS_ERR(req)) {
err = PTR_ERR(req);
goto error;
}
err = p9pdu_readf(req->rc, clnt->proto_version, "Q", qid);
if (err) {
p9pdu_dump(1, req->rc);
goto free_and_error;
}
P9_DPRINTK(P9_DEBUG_9P, "<<< RSYMLINK qid %x.%llx.%x\n",
qid->type, (unsigned long long)qid->path, qid->version);
free_and_error:
p9_free_req(clnt, req);
error:
return err;
}
EXPORT_SYMBOL(p9_client_symlink);
int p9_client_link(struct p9_fid *dfid, struct p9_fid *oldfid, char *newname)
{
struct p9_client *clnt;