9p: Implement TMKNOD

Synopsis

    size[4] Tmknod tag[2] fid[4] name[s] mode[4] major[4] minor[4] gid[4]

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

Description

    mknod asks the file server to create a device node with given major and
    minor number, mode and gid. The qid for the new device node is returned
    with the mknod reply message.

[sripathik@in.ibm.com: Fix error handling code]

Signed-off-by: M. Mohan Kumar <mohan@in.ibm.com>
Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>

2 files changed, 6 insertions, 0 deletions

diff --git a/include/net/9p/9p.h b/include/net/9p/9p.h
index 44a6883d7144..ff32091d8063 100644
--- a/include/net/9p/9p.h
+++ b/include/net/9p/9p.h
@@ -90,6 +90,8 @@ do { \
  * @P9_RSTATFS: file system status response
  * @P9_TSYMLINK: make symlink request
  * @P9_RSYMLINK: make symlink response
+ * @P9_TMKNOD: create a special file object request
+ * @P9_RMKNOD: create a special file object response
  * @P9_TRENAME: rename request
  * @P9_RRENAME: rename response
  * @P9_TVERSION: version handshake request
@@ -135,6 +137,8 @@ enum p9_msg_t {
         P9_RSTATFS,
         P9_TSYMLINK = 16,
         P9_RSYMLINK,
+        P9_TMKNOD = 18,
+        P9_RMKNOD,
         P9_TRENAME = 20,
         P9_RRENAME,
         P9_TGETATTR = 24,
diff --git a/include/net/9p/client.h b/include/net/9p/client.h
index 2e039730920e..6e70358c71d9 100644
--- a/include/net/9p/client.h
+++ b/include/net/9p/client.h
@@ -245,6 +245,8 @@ int p9_client_setattr(struct p9_fid *fid, struct p9_iattr_dotl *attr);
 struct p9_stat_dotl *p9_client_getattr_dotl(struct p9_fid *fid,
                                                         u64 request_mask);
 
+int p9_client_mknod_dotl(struct p9_fid *oldfid, char *name, int mode,
+                        dev_t rdev, gid_t gid, struct p9_qid *);
 struct p9_req_t *p9_tag_lookup(struct p9_client *, u16);
 void p9_client_cb(struct p9_client *c, struct p9_req_t *req);