protocol: add setactivelk () fop

Change-Id: I60fe2d59c454095febce4c0fbef87a2dad9636e4
BUG: 1326085
Signed-off-by: Susant Palai <spalai@redhat.com>
Reviewed-on: http://review.gluster.org/14013
Smoke: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Niels de Vos <ndevos@redhat.com>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.com>

10 files changed, 413 insertions, 2 deletions

diff --git a/rpc/rpc-lib/src/protocol-common.h b/rpc/rpc-lib/src/protocol-common.h
index ae6189d2e9b..915d358e707 100644
--- a/rpc/rpc-lib/src/protocol-common.h
+++ b/rpc/rpc-lib/src/protocol-common.h
@@ -64,6 +64,7 @@ enum gf_fop_procnum {
         GFS3_OP_COMPOUND,
         GFS3_OP_LEASE,
         GFS3_OP_GETACTIVELK,
+        GFS3_OP_SETACTIVELK,
         GFS3_OP_MAXVALUE,
 };
 
diff --git a/rpc/xdr/src/glusterfs3-xdr.x b/rpc/xdr/src/glusterfs3-xdr.x
index f0c5f12301f..dcd10cb23b7 100644
--- a/rpc/xdr/src/glusterfs3-xdr.x
+++ b/rpc/xdr/src/glusterfs3-xdr.x
@@ -980,3 +980,15 @@ struct gfs3_getactivelk_req {
         opaque gfid[16];
         opaque xdata<>;
 };
+
+struct gfs3_setactivelk_rsp {
+        int    op_ret;
+        int    op_errno;
+        opaque   xdata<>;
+};
+
+struct gfs3_setactivelk_req {
+        opaque gfid[16];
+        struct gfs3_locklist *request;
+        opaque xdata<>;
+};
diff --git a/xlators/protocol/client/src/client-helpers.c b/xlators/protocol/client/src/client-helpers.c
index c28a7cb4cbd..351a10be6e6 100644
--- a/xlators/protocol/client/src/client-helpers.c
+++ b/xlators/protocol/client/src/client-helpers.c
@@ -1806,3 +1806,81 @@ clnt_unserialize_rsp_locklist (xlator_t *this, struct gfs3_getactivelk_rsp *rsp,
 out:
         return ret;
 }
+
+void
+clnt_setactivelk_req_cleanup (gfs3_setactivelk_req *req)
+{
+        gfs3_locklist   *trav = NULL;
+        gfs3_locklist   *next = NULL;
+
+        trav = req->request;
+
+        while (trav) {
+                next = trav->nextentry;
+                GF_FREE (trav->client_uid);
+                GF_FREE (trav);
+                trav = next;
+        }
+}
+
+int
+serialize_req_locklist (lock_migration_info_t *locklist,
+                        gfs3_setactivelk_req *req)
+{
+        lock_migration_info_t   *tmp    = NULL;
+        gfs3_locklist           *trav   = NULL;
+        gfs3_locklist           *prev   = NULL;
+        int                     ret     = -1;
+
+        GF_VALIDATE_OR_GOTO ("server", locklist, out);
+        GF_VALIDATE_OR_GOTO ("server", req, out);
+
+        list_for_each_entry (tmp, &locklist->list, list) {
+                trav = GF_CALLOC (1, sizeof (*trav),
+                                  gf_client_mt_clnt_lock_request_t);
+                if (!trav)
+                        goto out;
+
+                switch (tmp->flock.l_type) {
+                case F_RDLCK:
+                        tmp->flock.l_type = GF_LK_F_RDLCK;
+                        break;
+                case F_WRLCK:
+                        tmp->flock.l_type = GF_LK_F_WRLCK;
+                        break;
+                case F_UNLCK:
+                        tmp->flock.l_type = GF_LK_F_UNLCK;
+                        break;
+
+                default:
+                        gf_msg (THIS->name, GF_LOG_ERROR, 0, 0,
+                                "Unknown lock type: %"PRId32"!",
+                                tmp->flock.l_type);
+                        break;
+                }
+
+                gf_proto_flock_from_flock (&trav->flock, &tmp->flock);
+
+                trav->client_uid = gf_strdup (tmp->client_uid);
+                if (!trav->client_uid) {
+                        gf_msg (THIS->name, GF_LOG_ERROR, 0, 0,
+                                "client_uid could not be allocated");
+                        ret = -1;
+                        goto out;
+                }
+
+                if (prev)
+                        prev->nextentry = trav;
+                else
+                        req->request = trav;
+
+                prev = trav;
+                trav = NULL;
+        }
+
+        ret = 0;
+out:
+        GF_FREE (trav);
+
+        return ret;
+}
diff --git a/xlators/protocol/client/src/client-mem-types.h b/xlators/protocol/client/src/client-mem-types.h
index e6cb9a2e0f4..1e995414ed8 100644
--- a/xlators/protocol/client/src/client-mem-types.h
+++ b/xlators/protocol/client/src/client-mem-types.h
@@ -22,6 +22,7 @@ enum gf_client_mem_types_ {
         gf_client_mt_clnt_fd_lk_local_t,
         gf_client_mt_clnt_args_t,
         gf_client_mt_compound_req_t,
+        gf_client_mt_clnt_lock_request_t,
         gf_client_mt_end,
 };
 #endif /* __CLIENT_MEM_TYPES_H__ */
diff --git a/xlators/protocol/client/src/client-rpc-fops.c b/xlators/protocol/client/src/client-rpc-fops.c
index 3b4f1c45ed0..8d7da4e0d29 100644
--- a/xlators/protocol/client/src/client-rpc-fops.c
+++ b/xlators/protocol/client/src/client-rpc-fops.c
@@ -3093,6 +3093,60 @@ out:
         return 0;
 }
 
+static int
+client3_3_setactivelk_cbk (struct rpc_req *req, struct iovec *iov, int count,
+                             void *myframe)
+{
+        call_frame_t            *frame = NULL;
+        gfs3_getactivelk_rsp     rsp   = {0,};
+        int32_t                  ret   = 0;
+        clnt_local_t            *local = NULL;
+        xlator_t                *this  = NULL;
+        dict_t                  *xdata = NULL;
+
+        this = THIS;
+
+        frame = myframe;
+        local = frame->local;
+
+        if (-1 == req->rpc_status) {
+                rsp.op_ret   = -1;
+                rsp.op_errno = ENOTCONN;
+                goto out;
+        }
+
+        ret = xdr_to_generic (*iov, &rsp, (xdrproc_t)xdr_gfs3_setactivelk_rsp);
+        if (ret < 0) {
+                gf_msg (this->name, GF_LOG_ERROR, EINVAL,
+                        PC_MSG_XDR_DECODING_FAILED, "XDR decoding failed");
+                rsp.op_ret   = -1;
+                rsp.op_errno = EINVAL;
+                goto out;
+        }
+
+        GF_PROTOCOL_DICT_UNSERIALIZE (this, xdata, (rsp.xdata.xdata_val),
+                                      (rsp.xdata.xdata_len), ret,
+                                      rsp.op_errno, out);
+
+out:
+        if (rsp.op_ret == -1) {
+                gf_msg (this->name, GF_LOG_WARNING,
+                        gf_error_to_errno (rsp.op_errno),
+                        PC_MSG_REMOTE_OP_FAILED,
+                        "remote operation failed");
+        }
+
+        CLIENT_STACK_UNWIND (setactivelk, frame, rsp.op_ret,
+                             gf_error_to_errno (rsp.op_errno), xdata);
+
+        free (rsp.xdata.xdata_val);
+
+        if (xdata)
+                dict_unref (xdata);
+
+        return 0;
+}
+
 int
 client3_3_compound_cbk (struct rpc_req *req, struct iovec *iov, int count,
                         void *myframe)
@@ -6232,6 +6286,68 @@ unwind:
         return 0;
 }
 
+static int32_t
+client3_3_setactivelk (call_frame_t *frame, xlator_t *this,
+                        void *data)
+{
+        clnt_conf_t   *conf             = NULL;
+        clnt_args_t   *args             = NULL;
+        gfs3_setactivelk_req  req      = {{0,},};
+        int            ret              = 0;
+        int            op_errno         = ESTALE;
+
+        if (!frame || !this || !data)
+                goto unwind;
+
+        args = data;
+        if (!(args->loc && args->loc->inode && args->locklist))
+                goto unwind;
+
+        if (!gf_uuid_is_null (args->loc->inode->gfid))
+                memcpy (req.gfid,  args->loc->inode->gfid, 16);
+        else
+                memcpy (req.gfid, args->loc->gfid, 16);
+
+        GF_ASSERT_AND_GOTO_WITH_ERROR (this->name,
+                                       !gf_uuid_is_null (*((uuid_t *)req.gfid)),
+                                       unwind, op_errno, EINVAL);
+        conf = this->private;
+
+        GF_PROTOCOL_DICT_SERIALIZE (this, args->xdata, (&req.xdata.xdata_val),
+                                    req.xdata.xdata_len, op_errno, unwind);
+
+        ret = serialize_req_locklist (args->locklist, &req);
+
+        if (ret)
+                goto unwind;
+
+        ret = client_submit_request (this, &req, frame, conf->fops,
+                                     GFS3_OP_SETACTIVELK, client3_3_setactivelk_cbk, NULL,
+                                     NULL, 0, NULL, 0, NULL,
+                                     (xdrproc_t)xdr_gfs3_setactivelk_req);
+        if (ret) {
+                gf_msg (this->name, GF_LOG_WARNING, 0, PC_MSG_FOP_SEND_FAILED,
+                        "failed to send the fop");
+        }
+
+
+        clnt_setactivelk_req_cleanup (&req);
+
+        GF_FREE (req.xdata.xdata_val);
+
+        return 0;
+
+unwind:
+
+        CLIENT_STACK_UNWIND (setactivelk, frame, -1, op_errno, NULL);
+
+        GF_FREE (req.xdata.xdata_val);
+
+        clnt_setactivelk_req_cleanup (&req);
+
+        return 0;
+}
+
 /* Table Specific to FOPS */
 rpc_clnt_procedure_t clnt3_3_fop_actors[GF_FOP_MAXVALUE] = {
         [GF_FOP_NULL]         = { "NULL",         NULL},
@@ -6286,7 +6402,7 @@ rpc_clnt_procedure_t clnt3_3_fop_actors[GF_FOP_MAXVALUE] = {
         [GF_FOP_SEEK]         = { "SEEK",         client3_3_seek },
         [GF_FOP_LEASE]        = { "LEASE",        client3_3_lease },
         [GF_FOP_GETACTIVELK]  = { "GETACTIVELK", client3_3_getactivelk},
-
+        [GF_FOP_SETACTIVELK]  = { "SETACTIVELK", client3_3_setactivelk},
 };
 
 /* Used From RPC-CLNT library to log proper name of procedure based on number */
@@ -6342,6 +6458,7 @@ char *clnt3_3_fop_names[GFS3_OP_MAXVALUE] = {
         [GFS3_OP_SEEK]        = "SEEK",
         [GFS3_OP_LEASE]       = "LEASE",
         [GFS3_OP_GETACTIVELK] = "GETACTIVELK",
+        [GFS3_OP_SETACTIVELK] = "SETACTIVELK",
 };
 
 rpc_clnt_prog_t clnt3_3_fop_prog = {
diff --git a/xlators/protocol/client/src/client.c b/xlators/protocol/client/src/client.c
index 4810f75ac25..14af6fb03c5 100644
--- a/xlators/protocol/client/src/client.c
+++ b/xlators/protocol/client/src/client.c
@@ -2095,6 +2095,34 @@ out:
 }
 
 int32_t
+client_setactivelk (call_frame_t *frame, xlator_t *this, loc_t *loc,
+                      lock_migration_info_t *locklist, dict_t *xdata)
+{
+        int          ret  = -1;
+        clnt_conf_t *conf = NULL;
+        rpc_clnt_procedure_t *proc = NULL;
+        clnt_args_t  args = {0,};
+
+        conf = this->private;
+        if (!conf || !conf->fops)
+                goto out;
+
+
+        args.loc = loc;
+        args.xdata = xdata;
+        args.locklist = locklist;
+
+        proc = &conf->fops->proctable[GF_FOP_SETACTIVELK];
+        if (proc->fn)
+                ret = proc->fn (frame, this, &args);
+out:
+        if (ret)
+                STACK_UNWIND_STRICT (setactivelk, frame, -1, ENOTCONN, NULL);
+
+        return 0;
+}
+
+int32_t
 client_getspec (call_frame_t *frame, xlator_t *this, const char *key,
                 int32_t flags)
 {
@@ -2921,6 +2949,7 @@ struct xlator_fops fops = {
         .lease       = client_lease,
         .compound    = client_compound,
         .getactivelk = client_getactivelk,
+        .setactivelk = client_setactivelk,
 };
 
 
diff --git a/xlators/protocol/client/src/client.h b/xlators/protocol/client/src/client.h
index c12c45605b5..46a7875682e 100644
--- a/xlators/protocol/client/src/client.h
+++ b/xlators/protocol/client/src/client.h
@@ -267,6 +267,7 @@ typedef struct client_args {
 
         mode_t              umask;
         dict_t             *xdata;
+        lock_migration_info_t *locklist;
 } clnt_args_t;
 
 typedef ssize_t (*gfs_serialize_t) (struct iovec outmsg, void *args);
@@ -366,4 +367,12 @@ clnt_unserialize_rsp_locklist (xlator_t *this, struct gfs3_getactivelk_rsp *rsp,
                                lock_migration_info_t *lmi);
 void
 clnt_getactivelk_rsp_cleanup (gfs3_getactivelk_rsp *rsp);
+
+void
+clnt_setactivelk_req_cleanup (gfs3_setactivelk_req *req);
+
+int
+serialize_req_locklist (lock_migration_info_t *locklist,
+                        gfs3_setactivelk_req *req);
+
 #endif /* !_CLIENT_H */
diff --git a/xlators/protocol/server/src/server-helpers.c b/xlators/protocol/server/src/server-helpers.c
index 146c13c3c2f..dc127a6cdcd 100644
--- a/xlators/protocol/server/src/server-helpers.c
+++ b/xlators/protocol/server/src/server-helpers.c
@@ -1309,3 +1309,39 @@ server_inode_new (inode_table_t *itable, uuid_t gfid) {
                 return inode_new (itable);
 }
 
+int
+unserialize_req_locklist (gfs3_setactivelk_req *req,
+                          lock_migration_info_t *lmi)
+{
+        struct gfs3_locklist            *trav      = NULL;
+        lock_migration_info_t           *temp    = NULL;
+        char                            *buf       = NULL;
+        int                             entry_len = 0;
+        int                             ret       = -1;
+
+        trav = req->request;
+
+        INIT_LIST_HEAD (&lmi->list);
+
+        while (trav) {
+                temp = GF_CALLOC (1, sizeof (*lmi), gf_common_mt_lock_mig);
+                if (temp == NULL) {
+                        gf_msg (THIS->name, GF_LOG_ERROR, 0, 0, "No memory");
+                        goto out;
+                }
+
+                INIT_LIST_HEAD (&temp->list);
+
+                gf_proto_flock_to_flock (&trav->flock, &temp->flock);
+
+                temp->client_uid =  gf_strdup (trav->client_uid);
+
+                list_add_tail (&temp->list, &lmi->list);
+
+                trav = trav->nextentry;
+        }
+
+        ret = 0;
+out:
+        return ret;
+}
diff --git a/xlators/protocol/server/src/server-rpc-fops.c b/xlators/protocol/server/src/server-rpc-fops.c
index 8a1b14bf7f6..72824781406 100644
--- a/xlators/protocol/server/src/server-rpc-fops.c
+++ b/xlators/protocol/server/src/server-rpc-fops.c
@@ -2209,6 +2209,44 @@ out:
         return 0;
 }
 
+static int
+server_setactivelk_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
+                        int32_t op_ret, int32_t op_errno, dict_t *xdata)
+{
+        gfs3_setactivelk_rsp   rsp     = {0,};
+        server_state_t          *state  = NULL;
+        rpcsvc_request_t        *req    = NULL;
+        int                     ret     = 0;
+
+        state = CALL_STATE (frame);
+
+        GF_PROTOCOL_DICT_SERIALIZE (this, xdata, &rsp.xdata.xdata_val,
+                                    rsp.xdata.xdata_len, op_errno, out);
+
+        if (op_ret < 0) {
+                state = CALL_STATE (frame);
+                gf_msg (this->name, GF_LOG_INFO,
+                        op_errno, 0,
+                        "%"PRId64": SETACTIVELK %s (%s) ==> (%s)",
+                        frame->root->unique, state->loc.path,
+                        uuid_utoa (state->resolve.gfid),
+                        strerror (op_errno));
+                goto out;
+        }
+
+out:
+        rsp.op_ret    = op_ret;
+        rsp.op_errno  = gf_errno_to_error (op_errno);
+
+        req = frame->local;
+
+        server_submit_reply (frame, req, &rsp, NULL, 0, NULL,
+                             (xdrproc_t)xdr_gfs3_setactivelk_rsp);
+
+        GF_FREE (rsp.xdata.xdata_val);
+
+        return 0;
+}
 
 /* Resume function section */
 
@@ -3375,6 +3413,28 @@ err:
 
 }
 
+int
+server_setactivelk_resume (call_frame_t *frame, xlator_t *bound_xl)
+{
+        server_state_t *state = NULL;
+
+        state = CALL_STATE (frame);
+
+        if (state->resolve.op_ret != 0)
+                goto err;
+
+        STACK_WIND (frame, server_setactivelk_cbk,
+                    bound_xl, bound_xl->fops->setactivelk, &state->loc,
+                    &state->locklist, state->xdata);
+        return 0;
+err:
+        server_setactivelk_cbk (frame, NULL, frame->this,
+                                 state->resolve.op_ret,
+                                 state->resolve.op_errno, NULL);
+        return 0;
+
+}
+
 /* Fop section */
 
 int
@@ -6646,6 +6706,69 @@ out:
         return ret;
 }
 
+
+static int
+server3_3_setactivelk (rpcsvc_request_t *req)
+{
+        server_state_t          *state          = NULL;
+        call_frame_t            *frame          = NULL;
+        gfs3_setactivelk_req   args            = {{0,},};
+        size_t                  headers_size    = 0;
+        int                     ret             = -1;
+        int                     op_errno        = 0;
+
+        if (!req)
+                return ret;
+
+        ret = xdr_to_generic (req->msg[0], &args,
+                              (xdrproc_t)xdr_gfs3_setactivelk_req);
+        if (ret < 0) {
+                SERVER_REQ_SET_ERROR (req, ret);
+                goto out;
+        }
+
+        frame = get_frame_from_request (req);
+        if (!frame) {
+                SERVER_REQ_SET_ERROR (req, ret);
+                goto out;
+        }
+
+        frame->root->op = GF_FOP_SETACTIVELK;
+
+        state = CALL_STATE (frame);
+        if (!frame->root->client->bound_xl) {
+                SERVER_REQ_SET_ERROR (req, ret);
+                goto out;
+        }
+
+        state->resolve.type = RESOLVE_MUST;
+        memcpy (state->resolve.gfid, args.gfid, 16);
+
+        /* here, dict itself works as xdata */
+        GF_PROTOCOL_DICT_UNSERIALIZE (frame->root->client->bound_xl,
+                                      state->xdata,
+                                      (args.xdata.xdata_val),
+                                      (args.xdata.xdata_len), ret,
+                                      op_errno, out);
+
+        ret = unserialize_req_locklist (&args, &state->locklist);
+        if (ret)
+                goto out;
+
+        ret = 0;
+
+        resolve_and_resume (frame, server_setactivelk_resume);
+out:
+        free (args.xdata.xdata_val);
+
+        if (op_errno)
+                SERVER_REQ_SET_ERROR (req, ret);
+
+        free (args.xdata.xdata_val);
+
+        return ret;
+}
+
 rpcsvc_actor_t glusterfs3_3_fop_actors[GLUSTER_FOP_PROCCNT] = {
         [GFS3_OP_NULL]         = {"NULL",         GFS3_OP_NULL,         server_null,            NULL, 0, DRC_NA},
         [GFS3_OP_STAT]         = {"STAT",         GFS3_OP_STAT,         server3_3_stat,         NULL, 0, DRC_NA},
@@ -6697,7 +6820,8 @@ rpcsvc_actor_t glusterfs3_3_fop_actors[GLUSTER_FOP_PROCCNT] = {
         [GFS3_OP_IPC]          = {"IPC",          GFS3_OP_IPC,          server3_3_ipc,          NULL, 0, DRC_NA},
         [GFS3_OP_SEEK]         = {"SEEK",         GFS3_OP_SEEK,         server3_3_seek,         NULL, 0, DRC_NA},
         [GFS3_OP_LEASE]       =  {"LEASE",        GFS3_OP_LEASE,        server3_3_lease,        NULL, 0, DRC_NA},
-        [GFS3_OP_GETACTIVELK] = {"GETACTIVELK", GFS3_OP_GETACTIVELK, server3_3_getactivelk, NULL, 0, DRC_NA},
+        [GFS3_OP_GETACTIVELK]  = {"GETACTIVELK", GFS3_OP_GETACTIVELK, server3_3_getactivelk, NULL, 0, DRC_NA},
+        [GFS3_OP_SETACTIVELK]  = {"SETACTIVELK", GFS3_OP_SETACTIVELK, server3_3_setactivelk, NULL, 0, DRC_NA},
 };
 
 
diff --git a/xlators/protocol/server/src/server.h b/xlators/protocol/server/src/server.h
index f2140dbb087..163cf2b9918 100644
--- a/xlators/protocol/server/src/server.h
+++ b/xlators/protocol/server/src/server.h
@@ -160,6 +160,7 @@ struct _server_state {
         dict_t           *xdata;
         mode_t            umask;
         struct gf_lease   lease;
+        lock_migration_info_t locklist;
 };
 
 
@@ -185,4 +186,7 @@ int gf_server_check_getxattr_cmd (call_frame_t *frame, const char *name);
 void
 forget_inode_if_no_dentry (inode_t *inode);
 
+int
+unserialize_req_locklist (gfs3_setactivelk_req *req,
+                          lock_migration_info_t *lmi);
 #endif /* !_SERVER_H */