2 files changed, 74 insertions, 0 deletions

diff --git a/net/9p/client.c b/net/9p/client.c
index 37c8da07a80b..a80357483a47 100644
--- a/net/9p/client.c
+++ b/net/9p/client.c
@@ -1432,3 +1432,50 @@ error:
 }
 EXPORT_SYMBOL(p9_client_rename);
 
+int p9_client_readdir(struct p9_fid *fid, char *data, u32 count, u64 offset)
+{
+        int err, rsize, total;
+        struct p9_client *clnt;
+        struct p9_req_t *req;
+        char *dataptr;
+
+        P9_DPRINTK(P9_DEBUG_9P, ">>> TREADDIR fid %d offset %llu count %d\n",
+                                fid->fid, (long long unsigned) offset, count);
+
+        err = 0;
+        clnt = fid->clnt;
+        total = 0;
+
+        rsize = fid->iounit;
+        if (!rsize || rsize > clnt->msize-P9_READDIRHDRSZ)
+                rsize = clnt->msize - P9_READDIRHDRSZ;
+
+        if (count < rsize)
+                rsize = count;
+
+        req = p9_client_rpc(clnt, P9_TREADDIR, "dqd", fid->fid, offset, rsize);
+        if (IS_ERR(req)) {
+                err = PTR_ERR(req);
+                goto error;
+        }
+
+        err = p9pdu_readf(req->rc, clnt->proto_version, "D", &count, &dataptr);
+        if (err) {
+                p9pdu_dump(1, req->rc);
+                goto free_and_error;
+        }
+
+        P9_DPRINTK(P9_DEBUG_9P, "<<< RREADDIR count %d\n", count);
+
+        if (data)
+                memmove(data, dataptr, count);
+
+        p9_free_req(clnt, req);
+        return count;
+
+free_and_error:
+        p9_free_req(clnt, req);
+error:
+        return err;
+}
+EXPORT_SYMBOL(p9_client_readdir);
diff --git a/net/9p/protocol.c b/net/9p/protocol.c
index 149f82160130..b645c8263538 100644
--- a/net/9p/protocol.c
+++ b/net/9p/protocol.c
@@ -580,3 +580,30 @@ void p9pdu_reset(struct p9_fcall *pdu)
         pdu->offset = 0;
         pdu->size = 0;
 }
+
+int p9dirent_read(char *buf, int len, struct p9_dirent *dirent,
+                                                int proto_version)
+{
+        struct p9_fcall fake_pdu;
+        int ret;
+        char *nameptr;
+
+        fake_pdu.size = len;
+        fake_pdu.capacity = len;
+        fake_pdu.sdata = buf;
+        fake_pdu.offset = 0;
+
+        ret = p9pdu_readf(&fake_pdu, proto_version, "Qqbs", &dirent->qid,
+                        &dirent->d_off, &dirent->d_type, &nameptr);
+        if (ret) {
+                P9_DPRINTK(P9_DEBUG_9P, "<<< p9dirent_read failed: %d\n", ret);
+                p9pdu_dump(1, &fake_pdu);
+                goto out;
+        }
+
+        strcpy(dirent->d_name, nameptr);
+
+out:
+        return fake_pdu.offset;
+}
+EXPORT_SYMBOL(p9dirent_read);