From 988bf74dd44cd57d0b67aa2a7f1bf77e09c24484 Mon Sep 17 00:00:00 2001
From: Michael Vrable <mvrable@cs.ucsd.edu>
Date: Sun, 23 Aug 2009 16:30:43 -0700
Subject: [PATCH] CREATE working (sort of).

---
 nfs3/nfs3.c | 53 ++++++++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 52 insertions(+), 1 deletion(-)

diff --git a/nfs3/nfs3.c b/nfs3/nfs3.c
index f13a6f2..e464684 100644
--- a/nfs3/nfs3.c
+++ b/nfs3/nfs3.c
@@ -65,6 +65,15 @@ void encode_fattr3(struct fattr3 *result, BlueSkyInode *inode)
     result->ctime.nseconds = (inode->ctime % 1000000) * 1000;
 }
 
+void encode_pre_wcc(struct wcc_data *wcc, BlueSkyInode *inode)
+{
+    wcc->before.present = TRUE;
+    wcc->before.pre_op_attr_u.attributes.size = inode->size;
+    wcc->before.pre_op_attr_u.attributes.mtime.seconds = inode->mtime / 1000000;
+    wcc->before.pre_op_attr_u.attributes.mtime.nseconds = (inode->mtime % 1000000) * 1000;
+    wcc->before.pre_op_attr_u.attributes.ctime.seconds = inode->ctime / 1000000;
+    wcc->before.pre_op_attr_u.attributes.ctime.nseconds = (inode->ctime % 1000000) * 1000;
+}
 void *
 nfsproc3_null_3_svc(void *argp, struct svc_req *rqstp)
 {
@@ -198,8 +207,50 @@ diropres3 *
 nfsproc3_create_3_svc(create3args *argp, struct svc_req *rqstp)
 {
     static diropres3 result;
+    struct wcc_data wcc;
+    memset(&wcc, 0, sizeof(wcc));
 
-    result.status = NFS3ERR_NOTSUPP;
+    BlueSkyInode *dir = lookup_fh(&argp->where.dir);
+    if (dir == NULL) {
+        result.status = NFS3ERR_STALE;
+        result.diropres3_u.resfail = wcc;
+        return &result;
+    }
+
+    encode_pre_wcc(&wcc, dir);
+    if (dir->type != BLUESKY_DIRECTORY) {
+        result.status = NFS3ERR_NOTDIR;
+        result.diropres3_u.resfail = wcc;
+        return &result;
+    }
+
+    if (!validate_filename(argp->where.name)
+        || strcmp(argp->where.name, ".") == 0
+        || strcmp(argp->where.name, "..") == 0)
+    {
+        result.status = NFS3ERR_EXIST;
+        result.diropres3_u.resfail = wcc;
+        return &result;
+    }
+
+    BlueSkyInode *file;
+    file = bluesky_new_inode(bluesky_fs_alloc_inode(fs), BLUESKY_REGULAR);
+    file->nlink = 1;
+    file->mode = 0755;
+    bluesky_insert_inode(fs, file);
+    bluesky_directory_insert(dir, argp->where.name, file->inum);
+
+    wcc.after.present = TRUE;
+    encode_fattr3(&wcc.after.post_op_attr_u.attributes, dir);
+    result.diropres3_u.resok.obj_attributes.present = TRUE;
+    encode_fattr3(&result.diropres3_u.resok.obj_attributes.post_op_attr_u.attributes, file);
+    result.diropres3_u.resok.dir_wcc = wcc;
+
+    static uint64_t fh_bytes;
+    fh_bytes = GUINT64_TO_BE(file->inum);
+    result.diropres3_u.resok.obj.present = TRUE;
+    result.diropres3_u.resok.obj.post_op_fh3_u.handle.data.data_len = 8;
+    result.diropres3_u.resok.obj.post_op_fh3_u.handle.data.data_val = (char *)&fh_bytes;
 
     return &result;
 }
-- 
2.20.1