tier/volume set: Validate volume set option for tier

Volume set option related to tier volume can only be set
for tier volume, also currently all volume set i for tier
option accepts a non-negative integer. This patch validate
both condition.

Back port of:
>Change-Id: I3611af048ff4ab193544058cace8db205ea92336
>BUG: 1216960
>Signed-off-by: Mohammed Rafi KC <rkavunga@redhat.com>
>Signed-off-by: Dan Lambright <dlambrig@redhat.com>
>Reviewed-on: http://review.gluster.org/10751
>Tested-by: Gluster Build System <jenkins@build.gluster.com>
>Tested-by: NetBSD Build System <jenkins@build.gluster.org>
>Reviewed-by: Joseph Fernandes


(cherry picked from commit f6a062044a3447bea5bf0fcf21a3f85c00fb6c7d)

Change-Id: Ic6081f0ce7ae7effac69ba192bd35c8d382a11d5
BUG: 1230560
Signed-off-by: Mohammed Rafi KC <rkavunga@redhat.com>
Reviewed-on: http://review.gluster.org/11173
Tested-by: NetBSD Build System <jenkins@build.gluster.org>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Joseph Fernandes
Tested-by: Joseph Fernandes

1 files changed, 78 insertions, 4 deletions

diff --git a/xlators/mgmt/glusterd/src/glusterd-volume-set.c b/xlators/mgmt/glusterd/src/glusterd-volume-set.c
index aed24469608..5c13abd1861 100644
--- a/xlators/mgmt/glusterd/src/glusterd-volume-set.c
+++ b/xlators/mgmt/glusterd/src/glusterd-volume-set.c
@@ -17,6 +17,76 @@
 #include "glusterd-utils.h"
 
 static int
+validate_tier (glusterd_volinfo_t *volinfo, dict_t *dict, char *key,
+               char *value, char **op_errstr)
+{
+        char                 errstr[2048]  = "";
+        int                  ret           = 0;
+        xlator_t            *this          = NULL;
+        int                  origin_val    = -1;
+
+        this = THIS;
+        GF_ASSERT (this);
+
+        if (volinfo->type != GF_CLUSTER_TYPE_TIER) {
+                snprintf (errstr, sizeof (errstr), "Volume %s is not a tier "
+                          "volume. Option %s is only valid for tier volume.",
+                          volinfo->volname, key);
+                gf_log (this->name, GF_LOG_ERROR, "%s", errstr);
+                *op_errstr = gf_strdup (errstr);
+                ret = -1;
+                goto out;
+        }
+
+        /*
+         * All the volume set options for tier are expecting a positive
+         * Integer. Change the function accordingly if this constraint is
+         * changed.
+         */
+
+        ret = gf_string2int (value, &origin_val);
+        if (ret) {
+                snprintf (errstr, sizeof (errstr), "%s is not a compatible "
+                          "value. %s expects an integer value.",
+                          value, key);
+                gf_log (this->name, GF_LOG_ERROR, "%s", errstr);
+                *op_errstr = gf_strdup (errstr);
+                ret = -1;
+                goto out;
+        }
+
+        if (strstr ("cluster.tier-promote-frequency", key) ||
+            strstr ("cluster.tier-demote-frequency", key)) {
+                if (origin_val < 1) {
+                        snprintf (errstr, sizeof (errstr), "%s is not a "
+                                  "compatible value. %s expects a positive "
+                                  "integer value.",
+                                  value, key);
+                        gf_log (this->name, GF_LOG_ERROR, "%s", errstr);
+                        *op_errstr = gf_strdup (errstr);
+                        ret = -1;
+                        goto out;
+                }
+        } else {
+                if (origin_val < 0) {
+                        snprintf (errstr, sizeof (errstr), "%s is not a "
+                                   "compatible value. %s expects a non-negative"
+                                   " integer value.",
+                                   value, key);
+                         gf_log (this->name, GF_LOG_ERROR, "%s", errstr);
+                         *op_errstr = gf_strdup (errstr);
+                         ret = -1;
+                        goto out;
+                }
+        }
+
+out:
+        gf_log (this->name, GF_LOG_DEBUG, "Returning %d", ret);
+
+        return ret;
+}
+
+static int
 validate_cache_max_min_size (glusterd_volinfo_t *volinfo, dict_t *dict,
                              char *key, char *value, char **op_errstr)
 {
@@ -1764,25 +1834,29 @@ struct volopt_map_entry glusterd_volopt_map[] = {
           .voltype     = "cluster/tier",
           .option      = "write-freq-threshold",
           .op_version  = GD_OP_VERSION_3_7_0,
-          .flags       = OPT_FLAG_CLIENT_OPT
+          .flags       = OPT_FLAG_CLIENT_OPT,
+          .validate_fn = validate_tier
         },
         { .key         = "cluster.read-freq-threshold",
           .voltype     = "cluster/tier",
           .option      = "read-freq-threshold",
           .op_version  = GD_OP_VERSION_3_7_0,
-          .flags       = OPT_FLAG_CLIENT_OPT
+          .flags       = OPT_FLAG_CLIENT_OPT,
+          .validate_fn = validate_tier
         },
         { .key         = "cluster.tier-promote-frequency",
           .voltype     = "cluster/tier",
           .option      = "tier-promote-frequency",
           .op_version  = GD_OP_VERSION_3_7_0,
-          .flags       = OPT_FLAG_CLIENT_OPT
+          .flags       = OPT_FLAG_CLIENT_OPT,
+          .validate_fn = validate_tier
         },
         { .key         = "cluster.tier-demote-frequency",
           .voltype     = "cluster/tier",
           .option      = "tier-demote-frequency",
           .op_version  = GD_OP_VERSION_3_7_0,
-          .flags       = OPT_FLAG_CLIENT_OPT
+          .flags       = OPT_FLAG_CLIENT_OPT,
+          .validate_fn = validate_tier
         },
         { .key         = "features.ctr-enabled",
           .voltype     = "features/changetimerecorder",