chore: Move cfg getter into PCPolicy; Clamp values on get

node/config/def.go

@@ -10,6 +10,8 @@ import (
 	"github.com/filecoin-project/go-state-types/big"
 	miner5 "github.com/filecoin-project/specs-actors/v5/actors/builtin/miner"
 
+	"github.com/filecoin-project/lotus/chain/actors/builtin"
+	"github.com/filecoin-project/lotus/chain/actors/policy"
 	"github.com/filecoin-project/lotus/chain/types"
 	sectorstorage "github.com/filecoin-project/lotus/extern/sector-storage"
 )
@@ -131,11 +133,10 @@ type SealingConfig struct {
 
 	WaitDealsDelay Duration
 
-	// CommittedCapacityDefaultLifetime is the default duration a Committed Capacity (CC)
-	// sector will live before it must be extended or converted into sector containing deals
-	// before it is terminated.
-	// Value must be between 180-540 days inclusive.
-	CommittedCapacityDefaultLifetime Duration
+	// CommittedCapacitySectorLifetime is the duration a Committed Capacity (CC) sector will
+	// live before it must be extended or converted into sector containing deals before it is
+	// terminated. Value must be between 180-540 days inclusive.
+	CommittedCapacitySectorLifetime Duration
 
 	AlwaysKeepUnsealedCopy bool
 
@@ -358,6 +359,8 @@ func DefaultStorageMiner() *StorageMiner {
 			PreCommitBatchWait:  Duration(24 * time.Hour),           // this should be less than 31.5 hours, which is the expiration of a precommit ticket
 			PreCommitBatchSlack: Duration(3 * time.Hour),            // time buffer for forceful batch submission before sectors/deals in batch would start expiring, higher value will lower the chances for message fail due to expiration
 
+			CommittedCapacitySectorLifetime: Duration(builtin.EpochDurationSeconds * policy.GetMaxSectorExpirationExtension()),
+
 			AggregateCommits: true,
 			MinCommitBatch:   miner5.MinAggregatedSectors, // per FIP13, we must have at least four proofs to aggregate, where 4 is the cross over point where aggregation wins out on single provecommit gas costs
 			MaxCommitBatch:   miner5.MaxAggregatedSectors, // maximum 819 sectors, this is the maximum aggregation per FIP13