1 files changed, 72 insertions, 0 deletions

diff --git a/net/9p/protocol.c b/net/9p/protocol.c
index 149f82160130..3acd3afb20c8 100644
--- a/net/9p/protocol.c
+++ b/net/9p/protocol.c
@@ -141,6 +141,7 @@ pdu_write_u(struct p9_fcall *pdu, const char __user *udata, size_t size)
         D - data blob (int32_t size followed by void *, results are not freed)
         T - array of strings (int16_t count, followed by strings)
         R - array of qids (int16_t count, followed by qids)
+        A - stat for 9p2000.L (p9_stat_dotl)
         ? - if optional = 1, continue parsing
 */
 
@@ -340,6 +341,33 @@ p9pdu_vreadf(struct p9_fcall *pdu, int proto_version, const char *fmt,
                                 }
                         }
                         break;
+                case 'A': {
+                                struct p9_stat_dotl *stbuf =
+                                    va_arg(ap, struct p9_stat_dotl *);
+
+                                memset(stbuf, 0, sizeof(struct p9_stat_dotl));
+                                errcode =
+                                    p9pdu_readf(pdu, proto_version,
+                                        "qQdddqqqqqqqqqqqqqqq",
+                                        &stbuf->st_result_mask,
+                                        &stbuf->qid,
+                                        &stbuf->st_mode,
+                                        &stbuf->st_uid, &stbuf->st_gid,
+                                        &stbuf->st_nlink,
+                                        &stbuf->st_rdev, &stbuf->st_size,
+                                        &stbuf->st_blksize, &stbuf->st_blocks,
+                                        &stbuf->st_atime_sec,
+                                        &stbuf->st_atime_nsec,
+                                        &stbuf->st_mtime_sec,
+                                        &stbuf->st_mtime_nsec,
+                                        &stbuf->st_ctime_sec,
+                                        &stbuf->st_ctime_nsec,
+                                        &stbuf->st_btime_sec,
+                                        &stbuf->st_btime_nsec,
+                                        &stbuf->st_gen,
+                                        &stbuf->st_data_version);
+                        }
+                        break;
                 case '?':
                         if ((proto_version != p9_proto_2000u) &&
                                 (proto_version != p9_proto_2000L))
@@ -488,6 +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))
@@ -580,3 +625,30 @@ 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);