Global: Introduce setattr and fsetattr fops

Signed-off-by: Anand V. Avati <avati@dev.gluster.com>

BUG: 146 (Add setattr FOP)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=146

9 files changed, 398 insertions, 2 deletions

diff --git a/libglusterfs/src/call-stub.c b/libglusterfs/src/call-stub.c
index 701ee8872..89a212807 100644
--- a/libglusterfs/src/call-stub.c
+++ b/libglusterfs/src/call-stub.c
@@ -2322,6 +2322,131 @@ fop_lock_fnotify_stub (call_frame_t *frame, fop_lock_fnotify_t fn,
 	return stub;
 }
 
+call_stub_t *
+fop_setattr_cbk_stub (call_frame_t *frame,
+                      fop_setattr_cbk_t fn,
+                      int32_t op_ret,
+                      int32_t op_errno,
+                      struct stat *statpre,
+                      struct stat *statpost)
+{
+        call_stub_t *stub = NULL;
+
+        if (frame == NULL)
+                goto out;
+
+	stub = stub_new (frame, 1, GF_FOP_SETATTR);
+	if (stub == NULL)
+                goto out;
+
+	stub->args.setattr_cbk.fn = fn;
+
+        stub->args.setattr_cbk.op_ret = op_ret;
+        stub->args.setattr_cbk.op_errno = op_errno;
+
+        if (statpre)
+                stub->args.setattr_cbk.statpre = *statpre;
+        if (statpost)
+                stub->args.setattr_cbk.statpost = *statpost;
+
+out:
+	return stub;
+}
+
+call_stub_t *
+fop_fsetattr_cbk_stub (call_frame_t *frame,
+                       fop_setattr_cbk_t fn,
+                       int32_t op_ret,
+                       int32_t op_errno,
+                       struct stat *statpre,
+                       struct stat *statpost)
+{
+        call_stub_t *stub = NULL;
+
+        if (frame == NULL)
+                goto out;
+
+	stub = stub_new (frame, 1, GF_FOP_FSETATTR);
+	if (stub == NULL)
+                goto out;
+
+	stub->args.fsetattr_cbk.fn = fn;
+
+        stub->args.fsetattr_cbk.op_ret = op_ret;
+        stub->args.fsetattr_cbk.op_errno = op_errno;
+
+        if (statpre)
+                stub->args.setattr_cbk.statpre = *statpre;
+        if (statpost)
+                stub->args.fsetattr_cbk.statpost = *statpost;
+out:
+	return stub;
+}
+
+call_stub_t *
+fop_setattr_stub (call_frame_t *frame,
+                  fop_setattr_t fn,
+                  loc_t *loc,
+                  struct stat *stbuf,
+                  int32_t valid)
+{
+        call_stub_t *stub = NULL;
+
+        if (frame == NULL)
+                goto out;
+
+        if (fn == NULL)
+                goto out;
+
+	stub = stub_new (frame, 1, GF_FOP_SETATTR);
+	if (stub == NULL)
+                goto out;
+
+	stub->args.setattr.fn = fn;
+
+	loc_copy (&stub->args.setattr.loc, loc);
+
+        if (stbuf)
+                stub->args.setattr.stbuf = *stbuf;
+
+        stub->args.setattr.valid = valid;
+
+out:
+	return stub;
+}
+
+call_stub_t *
+fop_fsetattr_stub (call_frame_t *frame,
+                   fop_fsetattr_t fn,
+                   fd_t *fd,
+                   struct stat *stbuf,
+                   int32_t valid)
+{
+        call_stub_t *stub = NULL;
+
+        if (frame == NULL)
+                goto out;
+
+        if (fn == NULL)
+                goto out;
+
+	stub = stub_new (frame, 1, GF_FOP_FSETATTR);
+	if (stub == NULL)
+                goto out;
+
+	stub->args.fsetattr.fn = fn;
+
+        if (fd)
+                stub->args.fsetattr.fd = fd_ref (fd);
+
+        if (stbuf)
+                stub->args.fsetattr.stbuf = *stbuf;
+
+        stub->args.fsetattr.valid = valid;
+
+out:
+	return stub;
+}
 
 static void
 call_resume_wind (call_stub_t *stub)
@@ -2770,6 +2895,24 @@ call_resume_wind (call_stub_t *stub)
 					    stub->args.lock_fnotify.timeout);
 		break;
 	}
+        case GF_FOP_SETATTR:
+        {
+                stub->args.setattr.fn (stub->frame,
+                                       stub->frame->this,
+                                       &stub->args.setattr.loc,
+                                       &stub->args.setattr.stbuf,
+                                       stub->args.setattr.valid);
+                break;
+        }
+        case GF_FOP_FSETATTR:
+        {
+                stub->args.fsetattr.fn (stub->frame,
+                                        stub->frame->this,
+                                        stub->args.fsetattr.fd,
+                                        &stub->args.fsetattr.stbuf,
+                                        stub->args.fsetattr.valid);
+                break;
+        }
 	default:
 	{
 		gf_log ("call-stub",
@@ -3632,6 +3775,44 @@ call_resume_unwind (call_stub_t *stub)
 							stub->args.lock_fnotify_cbk.op_errno);
 		break;
 	}
+        case GF_FOP_SETATTR:
+        {
+                if (!stub->args.setattr_cbk.fn)
+                        STACK_UNWIND (stub->frame,
+                                      stub->args.setattr_cbk.op_ret,
+                                      stub->args.setattr_cbk.op_errno,
+                                      &stub->args.setattr_cbk.statpre,
+                                      &stub->args.setattr_cbk.statpost);
+                else
+                        stub->args.setattr_cbk.fn (
+                                stub->frame,
+                                stub->frame->cookie,
+                                stub->frame->this,
+                                stub->args.setattr_cbk.op_ret,
+                                stub->args.setattr_cbk.op_errno,
+                                &stub->args.setattr_cbk.statpre,
+                                &stub->args.setattr_cbk.statpost);
+                break;
+        }
+        case GF_FOP_FSETATTR:
+        {
+                if (!stub->args.fsetattr_cbk.fn)
+                        STACK_UNWIND (stub->frame,
+                                      stub->args.fsetattr_cbk.op_ret,
+                                      stub->args.fsetattr_cbk.op_errno,
+                                      &stub->args.fsetattr_cbk.statpre,
+                                      &stub->args.fsetattr_cbk.statpost);
+                else
+                        stub->args.fsetattr_cbk.fn (
+                                stub->frame,
+                                stub->frame->cookie,
+                                stub->frame->this,
+                                stub->args.fsetattr_cbk.op_ret,
+                                stub->args.fsetattr_cbk.op_errno,
+                                &stub->args.fsetattr_cbk.statpre,
+                                &stub->args.fsetattr_cbk.statpost);
+                break;
+        }
 	case GF_FOP_MAXVALUE:
 	{
 		gf_log ("call-stub",
@@ -3986,6 +4167,17 @@ call_stub_destroy_wind (call_stub_t *stub)
 			fd_unref (stub->args.lock_fnotify.fd);
 		break;
 	}
+        case GF_FOP_SETATTR:
+        {
+                loc_wipe (&stub->args.setattr.loc);
+                break;
+        }
+        case GF_FOP_FSETATTR:
+        {
+                if (stub->args.fsetattr.fd)
+                        fd_unref (stub->args.fsetattr.fd);
+                break;
+        }
 	case GF_FOP_MAXVALUE:
 	{
 		gf_log ("call-stub",
@@ -4234,6 +4426,16 @@ call_stub_destroy_unwind (call_stub_t *stub)
 			dict_unref (stub->args.fxattrop_cbk.xattr);
 	}
 	break;
+        
+        case GF_FOP_SETATTR:
+        {
+                break;
+        }
+
+        case GF_FOP_FSETATTR:
+        {
+                break;
+        }
 
 	case GF_FOP_MAXVALUE:
 	{
diff --git a/libglusterfs/src/call-stub.h b/libglusterfs/src/call-stub.h
index 07bc92c31..63439478c 100644
--- a/libglusterfs/src/call-stub.h
+++ b/libglusterfs/src/call-stub.h
@@ -631,6 +631,36 @@ typedef struct {
 			int32_t op_ret;
 			int32_t op_errno;
 		} lock_fnotify_cbk;
+                
+                /* setattr */
+                struct {
+                        fop_setattr_t fn;
+                        loc_t loc;
+                        struct stat stbuf;
+                        int32_t valid;
+                } setattr;
+                struct {
+                        fop_setattr_cbk_t fn;
+                        int32_t op_ret;
+                        int32_t op_errno;
+                        struct stat statpre;
+                        struct stat statpost;
+                } setattr_cbk;
+
+                /* fsetattr */
+                struct {
+                        fop_fsetattr_t fn;
+                        fd_t *fd;
+                        struct stat stbuf;
+                        int32_t valid;
+                } fsetattr;
+                struct {
+                        fop_fsetattr_cbk_t fn;
+                        int32_t op_ret;
+                        int32_t op_errno;
+                        struct stat statpre;
+                        struct stat statpost;
+                } fsetattr_cbk;
 
 	} args;
 } call_stub_t;
@@ -1232,6 +1262,36 @@ fop_lock_fnotify_stub (call_frame_t *frame,
 		       fd_t *fd,
 		       int32_t timeout);
 
+call_stub_t *
+fop_setattr_stub (call_frame_t *frame,
+                  fop_setattr_t fn,
+                  loc_t *loc,
+                  struct stat *stbuf,
+                  int32_t valid);
+
+call_stub_t *
+fop_setattr_cbk_stub (call_frame_t *frame,
+                      fop_setattr_cbk_t fn,
+                      int32_t op_ret,
+                      int32_t op_errno,
+                      struct stat *statpre,
+                      struct stat *statpost);
+
+call_stub_t *
+fop_fsetattr_stub (call_frame_t *frame,
+                   fop_fsetattr_t fn,
+                   fd_t *fd,
+                   struct stat *stbuf,
+                   int32_t valid);
+
+call_stub_t *
+fop_fsetattr_cbk_stub (call_frame_t *frame,
+                       fop_setattr_cbk_t fn,
+                       int32_t op_ret,
+                       int32_t op_errno,
+                       struct stat *statpre,
+                       struct stat *statpost);
+
 void call_resume (call_stub_t *stub);
 void call_stub_destroy (call_stub_t *stub);
 #endif
diff --git a/libglusterfs/src/common-utils.c b/libglusterfs/src/common-utils.c
index 2f0dec9b4..49ea724b2 100644
--- a/libglusterfs/src/common-utils.c
+++ b/libglusterfs/src/common-utils.c
@@ -217,6 +217,8 @@ gf_global_variable_init()
 	gf_fop_list[GF_FOP_FSETXATTR]   = "FSETXATTR";
 	gf_fop_list[GF_FOP_FGETXATTR]   = "FGETXATTR";
         gf_fop_list[GF_FOP_RCHECKSUM]   = "RCHECKSUM";
+        gf_fop_list[GF_FOP_SETATTR]     = "SETATTR";
+        gf_fop_list[GF_FOP_FSETATTR]    = "FSETATTR";
 
 	gf_mop_list[GF_MOP_SETVOLUME]   = "SETVOLUME"; /* 0 */
 	gf_mop_list[GF_MOP_GETVOLUME]   = "GETVOLUME"; /* 1 */
diff --git a/libglusterfs/src/defaults.c b/libglusterfs/src/defaults.c
index e48fd3151..f72eca1f8 100644
--- a/libglusterfs/src/defaults.c
+++ b/libglusterfs/src/defaults.c
@@ -1557,3 +1557,58 @@ default_release (xlator_t *this,
 	return 0;
 }
 
+int32_t
+default_setattr_cbk (call_frame_t *frame,
+                     void *cookie,
+                     xlator_t *this,
+                     int32_t op_ret,
+                     int32_t op_errno,
+                     struct stat *statpre,
+                     struct stat *statpost)
+{
+	STACK_UNWIND (frame, op_ret, op_errno, statpre, statpost);
+	return 0;
+}
+
+int32_t
+default_setattr (call_frame_t *frame,
+                 xlator_t *this,
+                 loc_t *loc,
+                 struct stat *stbuf,
+                 int32_t valid)
+{
+	STACK_WIND (frame,
+		    default_setattr_cbk,
+		    FIRST_CHILD (this),
+		    FIRST_CHILD (this)->fops->setattr,
+		    loc, stbuf, valid);
+	return 0;
+}
+
+int32_t
+default_fsetattr_cbk (call_frame_t *frame,
+                      void *cookie,
+                      xlator_t *this,
+                      int32_t op_ret,
+                      int32_t op_errno,
+                      struct stat *statpre,
+                      struct stat *statpost)
+{
+	STACK_UNWIND (frame, op_ret, op_errno, statpre, statpost);
+	return 0;
+}
+
+int32_t
+default_fsetattr (call_frame_t *frame,
+                  xlator_t *this,
+                  fd_t *fd,
+                  struct stat *stbuf,
+                  int32_t valid)
+{
+	STACK_WIND (frame,
+		    default_fsetattr_cbk,
+		    FIRST_CHILD (this),
+		    FIRST_CHILD (this)->fops->fsetattr,
+		    fd, stbuf, valid);
+	return 0;
+}
diff --git a/libglusterfs/src/defaults.h b/libglusterfs/src/defaults.h
index 7b3b2cf58..d8b998486 100644
--- a/libglusterfs/src/defaults.h
+++ b/libglusterfs/src/defaults.h
@@ -302,4 +302,16 @@ int32_t default_release (xlator_t *this,
 int32_t default_releasedir (xlator_t *this,
 			    fd_t *fd);
 
+int32_t default_setattr (call_frame_t *frame,
+                         xlator_t *this,
+                         loc_t *loc,
+                         struct stat *stbuf,
+                         int32_t valid);
+
+int32_t default_fsetattr (call_frame_t *frame,
+                          xlator_t *this,
+                          fd_t *fd,
+                          struct stat *stbuf,
+                          int32_t valid);
+
 #endif /* _DEFAULTS_H */
diff --git a/libglusterfs/src/glusterfs.h b/libglusterfs/src/glusterfs.h
index df21d40a5..d1d30a492 100644
--- a/libglusterfs/src/glusterfs.h
+++ b/libglusterfs/src/glusterfs.h
@@ -124,6 +124,8 @@ typedef enum {
         GF_FOP_FGETXATTR,
         GF_FOP_FSETXATTR, /* 45 */
         GF_FOP_RCHECKSUM,
+        GF_FOP_SETATTR,
+        GF_FOP_FSETATTR,
         GF_FOP_MAXVALUE,
 } glusterfs_fop_t;
 
diff --git a/libglusterfs/src/protocol.h b/libglusterfs/src/protocol.h
index c0fee420e..91b876a6f 100644
--- a/libglusterfs/src/protocol.h
+++ b/libglusterfs/src/protocol.h
@@ -771,7 +771,6 @@ typedef struct {
 } __attribute__((packed)) gf_fop_setdents_req_t;
 typedef struct { } __attribute__((packed)) gf_fop_setdents_rsp_t;
 
-
 typedef struct {
 	uint64_t ino;
 	int64_t  fd;
@@ -795,6 +794,26 @@ typedef struct {
 	unsigned char dchecksum[0];
 } __attribute__((packed)) gf_fop_checksum_rsp_t;
 
+typedef struct {
+        uint64_t ino;
+        struct gf_stat stbuf;
+        int32_t  valid;
+        char path[0];
+} __attribute__((packed)) gf_fop_setattr_req_t;
+typedef struct {
+        struct gf_stat statpre;
+        struct gf_stat statpost;
+} __attribute__((packed)) gf_fop_setattr_rsp_t;
+
+typedef struct {
+        int64_t fd;
+        struct gf_stat stbuf;
+        int32_t  valid;
+} __attribute__((packed)) gf_fop_fsetattr_req_t;
+typedef struct {
+        struct gf_stat statpre;
+        struct gf_stat statpost;
+} __attribute__((packed)) gf_fop_fsetattr_rsp_t;
 
 typedef struct {
         int64_t   fd;
diff --git a/libglusterfs/src/xlator.c b/libglusterfs/src/xlator.c
index 5d677ac18..90c9d5cdc 100644
--- a/libglusterfs/src/xlator.c
+++ b/libglusterfs/src/xlator.c
@@ -102,7 +102,9 @@ fill_defaults (xlator_t *xl)
 	SET_DEFAULT_FOP (fxattrop);
 	SET_DEFAULT_FOP (lock_notify);
 	SET_DEFAULT_FOP (lock_fnotify);
-	
+        SET_DEFAULT_FOP (setattr);
+        SET_DEFAULT_FOP (fsetattr);
+
         SET_DEFAULT_MOP (log);
 	SET_DEFAULT_MOP (stats);
 
diff --git a/libglusterfs/src/xlator.h b/libglusterfs/src/xlator.h
index ff6768035..afaaed4a4 100644
--- a/libglusterfs/src/xlator.h
+++ b/libglusterfs/src/xlator.h
@@ -37,8 +37,17 @@
 #include "compat.h"
 #include "list.h"
 
+#include <fuse/fuse_lowlevel.h>
+
 #define FIRST_CHILD(xl) (xl->children->xlator)
 
+#define GF_SET_ATTR_MODE  0x1
+#define GF_SET_ATTR_UID   0x2
+#define GF_SET_ATTR_GID   0x4
+#define GF_SET_ATTR_SIZE  0x8
+#define GF_SET_ATTR_ATIME 0x10
+#define GF_SET_ATTR_MTIME 0x20
+
 struct _xlator;
 typedef struct _xlator xlator_t;
 struct _dir_entry_t;
@@ -467,6 +476,22 @@ typedef int32_t (*fop_lock_fnotify_cbk_t) (call_frame_t *frame,
                                            int32_t op_ret,
                                            int32_t op_errno);
 
+typedef int32_t (*fop_setattr_cbk_t) (call_frame_t *frame,
+                                      void *cookie,
+                                      xlator_t *this,
+                                      int32_t op_ret,
+                                      int32_t op_errno,
+                                      struct stat *preop_stbuf,
+                                      struct stat *postop_stbuf);
+
+typedef int32_t (*fop_fsetattr_cbk_t) (call_frame_t *frame,
+                                       void *cookie,
+                                       xlator_t *this,
+                                       int32_t op_ret,
+                                       int32_t op_errno,
+                                       struct stat *preop_stbuf,
+                                       struct stat *postop_stbuf);
+
 typedef int32_t (*fop_lookup_t) (call_frame_t *frame,
 				 xlator_t *this,
 				 loc_t *loc,
@@ -710,6 +735,19 @@ typedef int32_t (*fop_lock_fnotify_t) (call_frame_t *frame,
                                        xlator_t *this, fd_t *fd,
                                        int32_t timeout);
 
+typedef int32_t (*fop_setattr_t) (call_frame_t *frame,
+                                  xlator_t *this,
+                                  loc_t *loc,
+                                  struct stat *stbuf,
+                                  int32_t valid);
+
+typedef int32_t (*fop_fsetattr_t) (call_frame_t *frame,
+                                   xlator_t *this,
+                                   fd_t *fd,
+                                   struct stat *stbuf,
+                                   int32_t valid);
+
+
 struct xlator_fops {
 	fop_lookup_t         lookup;
 	fop_stat_t           stat;
@@ -758,6 +796,8 @@ struct xlator_fops {
 	fop_fxattrop_t       fxattrop;
 	fop_lock_notify_t    lock_notify;
 	fop_lock_fnotify_t   lock_fnotify;
+        fop_setattr_t        setattr;
+        fop_fsetattr_t       fsetattr;
 
 	/* these entries are used for a typechecking hack in STACK_WIND _only_ */
 	fop_lookup_cbk_t         lookup_cbk;
@@ -807,6 +847,8 @@ struct xlator_fops {
 	fop_fxattrop_cbk_t       fxattrop_cbk;
 	fop_lock_notify_cbk_t    lock_notify_cbk;
 	fop_lock_fnotify_cbk_t   lock_fnotify_cbk;
+        fop_setattr_cbk_t        setattr_cbk;
+        fop_fsetattr_cbk_t       fsetattr_cbk;
 };
 
 typedef int32_t (*cbk_forget_t) (xlator_t *this,