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-rw-r--r--fs/9p/vfs_inode.c49
-rw-r--r--include/net/9p/9p.h28
-rw-r--r--include/net/9p/client.h1
-rw-r--r--net/9p/client.c30
-rw-r--r--net/9p/protocol.c17
5 files changed, 122 insertions, 3 deletions
diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
index afcb8d889382..a90324f4546a 100644
--- a/fs/9p/vfs_inode.c
+++ b/fs/9p/vfs_inode.c
@@ -977,6 +977,49 @@ static int v9fs_vfs_setattr(struct dentry *dentry, struct iattr *iattr)
}
/**
+ * v9fs_vfs_setattr_dotl - set file metadata
+ * @dentry: file whose metadata to set
+ * @iattr: metadata assignment structure
+ *
+ */
+
+static int v9fs_vfs_setattr_dotl(struct dentry *dentry, struct iattr *iattr)
+{
+ int retval;
+ struct v9fs_session_info *v9ses;
+ struct p9_fid *fid;
+ struct p9_iattr_dotl p9attr;
+
+ P9_DPRINTK(P9_DEBUG_VFS, "\n");
+
+ retval = inode_change_ok(dentry->d_inode, iattr);
+ if (retval)
+ return retval;
+
+ p9attr.valid = iattr->ia_valid;
+ p9attr.mode = iattr->ia_mode;
+ p9attr.uid = iattr->ia_uid;
+ p9attr.gid = iattr->ia_gid;
+ p9attr.size = iattr->ia_size;
+ p9attr.atime_sec = iattr->ia_atime.tv_sec;
+ p9attr.atime_nsec = iattr->ia_atime.tv_nsec;
+ p9attr.mtime_sec = iattr->ia_mtime.tv_sec;
+ p9attr.mtime_nsec = iattr->ia_mtime.tv_nsec;
+
+ retval = -EPERM;
+ v9ses = v9fs_inode2v9ses(dentry->d_inode);
+ fid = v9fs_fid_lookup(dentry);
+ if (IS_ERR(fid))
+ return PTR_ERR(fid);
+
+ retval = p9_client_setattr(fid, &p9attr);
+ if (retval >= 0)
+ retval = inode_setattr(dentry->d_inode, iattr);
+
+ return retval;
+}
+
+/**
* v9fs_stat2inode - populate an inode structure with mistat info
* @stat: Plan 9 metadata (mistat) structure
* @inode: inode to populate
@@ -1400,7 +1443,7 @@ static const struct inode_operations v9fs_dir_inode_operations_dotl = {
.mknod = v9fs_vfs_mknod,
.rename = v9fs_vfs_rename,
.getattr = v9fs_vfs_getattr_dotl,
- .setattr = v9fs_vfs_setattr,
+ .setattr = v9fs_vfs_setattr_dotl,
};
static const struct inode_operations v9fs_dir_inode_operations = {
@@ -1422,7 +1465,7 @@ static const struct inode_operations v9fs_file_inode_operations = {
static const struct inode_operations v9fs_file_inode_operations_dotl = {
.getattr = v9fs_vfs_getattr_dotl,
- .setattr = v9fs_vfs_setattr,
+ .setattr = v9fs_vfs_setattr_dotl,
};
static const struct inode_operations v9fs_symlink_inode_operations = {
@@ -1438,5 +1481,5 @@ static const struct inode_operations v9fs_symlink_inode_operations_dotl = {
.follow_link = v9fs_vfs_follow_link,
.put_link = v9fs_vfs_put_link,
.getattr = v9fs_vfs_getattr_dotl,
- .setattr = v9fs_vfs_setattr,
+ .setattr = v9fs_vfs_setattr_dotl,
};
diff --git a/include/net/9p/9p.h b/include/net/9p/9p.h
index ab12e1c9cc7e..7f64d72f6c61 100644
--- a/include/net/9p/9p.h
+++ b/include/net/9p/9p.h
@@ -135,6 +135,8 @@ enum p9_msg_t {
P9_RRENAME,
P9_TGETATTR = 24,
P9_RGETATTR,
+ P9_TSETATTR = 26,
+ P9_RSETATTR,
P9_TREADDIR = 40,
P9_RREADDIR,
P9_TVERSION = 100,
@@ -406,6 +408,32 @@ struct p9_stat_dotl {
#define P9_STATS_BASIC 0x000007ffULL /* Mask for fields up to BLOCKS */
#define P9_STATS_ALL 0x00003fffULL /* Mask for All fields above */
+/**
+ * struct p9_iattr_dotl - P9 inode attribute for setattr
+ * @valid: bitfield specifying which fields are valid
+ * same as in struct iattr
+ * @mode: File permission bits
+ * @uid: user id of owner
+ * @gid: group id
+ * @size: File size
+ * @atime_sec: Last access time, seconds
+ * @atime_nsec: Last access time, nanoseconds
+ * @mtime_sec: Last modification time, seconds
+ * @mtime_nsec: Last modification time, nanoseconds
+ */
+
+struct p9_iattr_dotl {
+ u32 valid;
+ u32 mode;
+ u32 uid;
+ u32 gid;
+ u64 size;
+ u64 atime_sec;
+ u64 atime_nsec;
+ u64 mtime_sec;
+ u64 mtime_nsec;
+};
+
/* Structures for Protocol Operations */
struct p9_tstatfs {
u32 fid;
diff --git a/include/net/9p/client.h b/include/net/9p/client.h
index 6462eec435bc..afdc385152f6 100644
--- a/include/net/9p/client.h
+++ b/include/net/9p/client.h
@@ -237,6 +237,7 @@ int p9dirent_read(char *buf, int len, struct p9_dirent *dirent,
int proto_version);
struct p9_wstat *p9_client_stat(struct p9_fid *fid);
int p9_client_wstat(struct p9_fid *fid, struct p9_wstat *wst);
+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);
diff --git a/net/9p/client.c b/net/9p/client.c
index 5e97118da3bf..b2f70ec889c2 100644
--- a/net/9p/client.c
+++ b/net/9p/client.c
@@ -1426,6 +1426,36 @@ error:
}
EXPORT_SYMBOL(p9_client_wstat);
+int p9_client_setattr(struct p9_fid *fid, struct p9_iattr_dotl *p9attr)
+{
+ int err;
+ struct p9_req_t *req;
+ struct p9_client *clnt;
+
+ err = 0;
+ clnt = fid->clnt;
+ P9_DPRINTK(P9_DEBUG_9P, ">>> TSETATTR fid %d\n", fid->fid);
+ P9_DPRINTK(P9_DEBUG_9P,
+ " valid=%x mode=%x uid=%d gid=%d size=%lld\n"
+ " atime_sec=%lld atime_nsec=%lld\n"
+ " mtime_sec=%lld mtime_nsec=%lld\n",
+ p9attr->valid, p9attr->mode, p9attr->uid, p9attr->gid,
+ p9attr->size, p9attr->atime_sec, p9attr->atime_nsec,
+ p9attr->mtime_sec, p9attr->mtime_nsec);
+
+ req = p9_client_rpc(clnt, P9_TSETATTR, "dI", fid->fid, p9attr);
+
+ if (IS_ERR(req)) {
+ err = PTR_ERR(req);
+ goto error;
+ }
+ P9_DPRINTK(P9_DEBUG_9P, "<<< RSETATTR fid %d\n", fid->fid);
+ p9_free_req(clnt, req);
+error:
+ return err;
+}
+EXPORT_SYMBOL(p9_client_setattr);
+
int p9_client_statfs(struct p9_fid *fid, struct p9_rstatfs *sb)
{
int err;
diff --git a/net/9p/protocol.c b/net/9p/protocol.c
index 3e4f77695891..3acd3afb20c8 100644
--- a/net/9p/protocol.c
+++ b/net/9p/protocol.c
@@ -516,6 +516,23 @@ p9pdu_vwritef(struct p9_fcall *pdu, int proto_version, const char *fmt,
}
}
break;
+ case 'I':{
+ struct p9_iattr_dotl *p9attr = va_arg(ap,
+ struct p9_iattr_dotl *);
+
+ errcode = p9pdu_writef(pdu, proto_version,
+ "ddddqqqqq",
+ p9attr->valid,
+ p9attr->mode,
+ p9attr->uid,
+ p9attr->gid,
+ p9attr->size,
+ p9attr->atime_sec,
+ p9attr->atime_nsec,
+ p9attr->mtime_sec,
+ p9attr->mtime_nsec);
+ }
+ break;
case '?':
if ((proto_version != p9_proto_2000u) &&
(proto_version != p9_proto_2000L))
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-02 19:08:01 +0000