diff --git a/cmd/swarm/config.go b/cmd/swarm/config.go
index 98d4dee7b9061e1c316b2ac8b5dfc84a19b36561..0e1e5e39ba08ea163aa08b2bfc04afc5467c34c8 100644
--- a/cmd/swarm/config.go
+++ b/cmd/swarm/config.go
@@ -59,31 +59,31 @@ var (
 
 //constants for environment variables
 const (
-	SWARM_ENV_CHEQUEBOOK_ADDR         = "SWARM_CHEQUEBOOK_ADDR"
-	SWARM_ENV_ACCOUNT                 = "SWARM_ACCOUNT"
-	SWARM_ENV_LISTEN_ADDR             = "SWARM_LISTEN_ADDR"
-	SWARM_ENV_PORT                    = "SWARM_PORT"
-	SWARM_ENV_NETWORK_ID              = "SWARM_NETWORK_ID"
-	SWARM_ENV_SWAP_ENABLE             = "SWARM_SWAP_ENABLE"
-	SWARM_ENV_SWAP_API                = "SWARM_SWAP_API"
-	SWARM_ENV_SYNC_DISABLE            = "SWARM_SYNC_DISABLE"
-	SWARM_ENV_SYNC_UPDATE_DELAY       = "SWARM_ENV_SYNC_UPDATE_DELAY"
-	SWARM_ENV_MAX_STREAM_PEER_SERVERS = "SWARM_ENV_MAX_STREAM_PEER_SERVERS"
-	SWARM_ENV_LIGHT_NODE_ENABLE       = "SWARM_LIGHT_NODE_ENABLE"
-	SWARM_ENV_DELIVERY_SKIP_CHECK     = "SWARM_DELIVERY_SKIP_CHECK"
-	SWARM_ENV_ENS_API                 = "SWARM_ENS_API"
-	SWARM_ENV_ENS_ADDR                = "SWARM_ENS_ADDR"
-	SWARM_ENV_CORS                    = "SWARM_CORS"
-	SWARM_ENV_BOOTNODES               = "SWARM_BOOTNODES"
-	SWARM_ENV_PSS_ENABLE              = "SWARM_PSS_ENABLE"
-	SWARM_ENV_STORE_PATH              = "SWARM_STORE_PATH"
-	SWARM_ENV_STORE_CAPACITY          = "SWARM_STORE_CAPACITY"
-	SWARM_ENV_STORE_CACHE_CAPACITY    = "SWARM_STORE_CACHE_CAPACITY"
-	SWARM_ENV_BOOTNODE_MODE           = "SWARM_BOOTNODE_MODE"
-	SWARM_ACCESS_PASSWORD             = "SWARM_ACCESS_PASSWORD"
-	SWARM_AUTO_DEFAULTPATH            = "SWARM_AUTO_DEFAULTPATH"
-	SWARM_GLOBALSTORE_API             = "SWARM_GLOBALSTORE_API"
-	GETH_ENV_DATADIR                  = "GETH_DATADIR"
+	SwarmEnvChequebookAddr       = "SWARM_CHEQUEBOOK_ADDR"
+	SwarmEnvAccount              = "SWARM_ACCOUNT"
+	SwarmEnvListenAddr           = "SWARM_LISTEN_ADDR"
+	SwarmEnvPort                 = "SWARM_PORT"
+	SwarmEnvNetworkID            = "SWARM_NETWORK_ID"
+	SwarmEnvSwapEnable           = "SWARM_SWAP_ENABLE"
+	SwarmEnvSwapAPI              = "SWARM_SWAP_API"
+	SwarmEnvSyncDisable          = "SWARM_SYNC_DISABLE"
+	SwarmEnvSyncUpdateDelay      = "SWARM_ENV_SYNC_UPDATE_DELAY"
+	SwarmEnvMaxStreamPeerServers = "SWARM_ENV_MAX_STREAM_PEER_SERVERS"
+	SwarmEnvLightNodeEnable      = "SWARM_LIGHT_NODE_ENABLE"
+	SwarmEnvDeliverySkipCheck    = "SWARM_DELIVERY_SKIP_CHECK"
+	SwarmEnvENSAPI               = "SWARM_ENS_API"
+	SwarmEnvENSAddr              = "SWARM_ENS_ADDR"
+	SwarmEnvCORS                 = "SWARM_CORS"
+	SwarmEnvBootnodes            = "SWARM_BOOTNODES"
+	SwarmEnvPSSEnable            = "SWARM_PSS_ENABLE"
+	SwarmEnvStorePath            = "SWARM_STORE_PATH"
+	SwarmEnvStoreCapacity        = "SWARM_STORE_CAPACITY"
+	SwarmEnvStoreCacheCapacity   = "SWARM_STORE_CACHE_CAPACITY"
+	SwarmEnvBootnodeMode         = "SWARM_BOOTNODE_MODE"
+	SwarmAccessPassword          = "SWARM_ACCESS_PASSWORD"
+	SwarmAutoDefaultPath         = "SWARM_AUTO_DEFAULTPATH"
+	SwarmGlobalstoreAPI          = "SWARM_GLOBALSTORE_API"
+	GethEnvDataDir               = "GETH_DATADIR"
 )
 
 // These settings ensure that TOML keys use the same names as Go struct fields.
@@ -227,7 +227,7 @@ func cmdLineOverride(currentConfig *bzzapi.Config, ctx *cli.Context) *bzzapi.Con
 
 	currentConfig.SwapAPI = ctx.GlobalString(SwarmSwapAPIFlag.Name)
 	if currentConfig.SwapEnabled && currentConfig.SwapAPI == "" {
-		utils.Fatalf(SWARM_ERR_SWAP_SET_NO_API)
+		utils.Fatalf(SwarmErrSwapSetNoAPI)
 	}
 
 	if ctx.GlobalIsSet(EnsAPIFlag.Name) {
@@ -274,113 +274,113 @@ func cmdLineOverride(currentConfig *bzzapi.Config, ctx *cli.Context) *bzzapi.Con
 // envVarsOverride overrides the current config with whatver is provided in environment variables
 // most values are not allowed a zero value (empty string), if not otherwise noted
 func envVarsOverride(currentConfig *bzzapi.Config) (config *bzzapi.Config) {
-	if keyid := os.Getenv(SWARM_ENV_ACCOUNT); keyid != "" {
+	if keyid := os.Getenv(SwarmEnvAccount); keyid != "" {
 		currentConfig.BzzAccount = keyid
 	}
 
-	if chbookaddr := os.Getenv(SWARM_ENV_CHEQUEBOOK_ADDR); chbookaddr != "" {
+	if chbookaddr := os.Getenv(SwarmEnvChequebookAddr); chbookaddr != "" {
 		currentConfig.Contract = common.HexToAddress(chbookaddr)
 	}
 
-	if networkid := os.Getenv(SWARM_ENV_NETWORK_ID); networkid != "" {
+	if networkid := os.Getenv(SwarmEnvNetworkID); networkid != "" {
 		id, err := strconv.ParseUint(networkid, 10, 64)
 		if err != nil {
-			utils.Fatalf("invalid environment variable %s: %v", SWARM_ENV_NETWORK_ID, err)
+			utils.Fatalf("invalid environment variable %s: %v", SwarmEnvNetworkID, err)
 		}
 		if id != 0 {
 			currentConfig.NetworkID = id
 		}
 	}
 
-	if datadir := os.Getenv(GETH_ENV_DATADIR); datadir != "" {
+	if datadir := os.Getenv(GethEnvDataDir); datadir != "" {
 		currentConfig.Path = expandPath(datadir)
 	}
 
-	bzzport := os.Getenv(SWARM_ENV_PORT)
+	bzzport := os.Getenv(SwarmEnvPort)
 	if len(bzzport) > 0 {
 		currentConfig.Port = bzzport
 	}
 
-	if bzzaddr := os.Getenv(SWARM_ENV_LISTEN_ADDR); bzzaddr != "" {
+	if bzzaddr := os.Getenv(SwarmEnvListenAddr); bzzaddr != "" {
 		currentConfig.ListenAddr = bzzaddr
 	}
 
-	if swapenable := os.Getenv(SWARM_ENV_SWAP_ENABLE); swapenable != "" {
+	if swapenable := os.Getenv(SwarmEnvSwapEnable); swapenable != "" {
 		swap, err := strconv.ParseBool(swapenable)
 		if err != nil {
-			utils.Fatalf("invalid environment variable %s: %v", SWARM_ENV_SWAP_ENABLE, err)
+			utils.Fatalf("invalid environment variable %s: %v", SwarmEnvSwapEnable, err)
 		}
 		currentConfig.SwapEnabled = swap
 	}
 
-	if syncdisable := os.Getenv(SWARM_ENV_SYNC_DISABLE); syncdisable != "" {
+	if syncdisable := os.Getenv(SwarmEnvSyncDisable); syncdisable != "" {
 		sync, err := strconv.ParseBool(syncdisable)
 		if err != nil {
-			utils.Fatalf("invalid environment variable %s: %v", SWARM_ENV_SYNC_DISABLE, err)
+			utils.Fatalf("invalid environment variable %s: %v", SwarmEnvSyncDisable, err)
 		}
 		currentConfig.SyncEnabled = !sync
 	}
 
-	if v := os.Getenv(SWARM_ENV_DELIVERY_SKIP_CHECK); v != "" {
+	if v := os.Getenv(SwarmEnvDeliverySkipCheck); v != "" {
 		skipCheck, err := strconv.ParseBool(v)
 		if err != nil {
 			currentConfig.DeliverySkipCheck = skipCheck
 		}
 	}
 
-	if v := os.Getenv(SWARM_ENV_SYNC_UPDATE_DELAY); v != "" {
+	if v := os.Getenv(SwarmEnvSyncUpdateDelay); v != "" {
 		d, err := time.ParseDuration(v)
 		if err != nil {
-			utils.Fatalf("invalid environment variable %s: %v", SWARM_ENV_SYNC_UPDATE_DELAY, err)
+			utils.Fatalf("invalid environment variable %s: %v", SwarmEnvSyncUpdateDelay, err)
 		}
 		currentConfig.SyncUpdateDelay = d
 	}
 
-	if max := os.Getenv(SWARM_ENV_MAX_STREAM_PEER_SERVERS); max != "" {
+	if max := os.Getenv(SwarmEnvMaxStreamPeerServers); max != "" {
 		m, err := strconv.Atoi(max)
 		if err != nil {
-			utils.Fatalf("invalid environment variable %s: %v", SWARM_ENV_MAX_STREAM_PEER_SERVERS, err)
+			utils.Fatalf("invalid environment variable %s: %v", SwarmEnvMaxStreamPeerServers, err)
 		}
 		currentConfig.MaxStreamPeerServers = m
 	}
 
-	if lne := os.Getenv(SWARM_ENV_LIGHT_NODE_ENABLE); lne != "" {
+	if lne := os.Getenv(SwarmEnvLightNodeEnable); lne != "" {
 		lightnode, err := strconv.ParseBool(lne)
 		if err != nil {
-			utils.Fatalf("invalid environment variable %s: %v", SWARM_ENV_LIGHT_NODE_ENABLE, err)
+			utils.Fatalf("invalid environment variable %s: %v", SwarmEnvLightNodeEnable, err)
 		}
 		currentConfig.LightNodeEnabled = lightnode
 	}
 
-	if swapapi := os.Getenv(SWARM_ENV_SWAP_API); swapapi != "" {
+	if swapapi := os.Getenv(SwarmEnvSwapAPI); swapapi != "" {
 		currentConfig.SwapAPI = swapapi
 	}
 
 	if currentConfig.SwapEnabled && currentConfig.SwapAPI == "" {
-		utils.Fatalf(SWARM_ERR_SWAP_SET_NO_API)
+		utils.Fatalf(SwarmErrSwapSetNoAPI)
 	}
 
-	if ensapi := os.Getenv(SWARM_ENV_ENS_API); ensapi != "" {
+	if ensapi := os.Getenv(SwarmEnvENSAPI); ensapi != "" {
 		currentConfig.EnsAPIs = strings.Split(ensapi, ",")
 	}
 
-	if ensaddr := os.Getenv(SWARM_ENV_ENS_ADDR); ensaddr != "" {
+	if ensaddr := os.Getenv(SwarmEnvENSAddr); ensaddr != "" {
 		currentConfig.EnsRoot = common.HexToAddress(ensaddr)
 	}
 
-	if cors := os.Getenv(SWARM_ENV_CORS); cors != "" {
+	if cors := os.Getenv(SwarmEnvCORS); cors != "" {
 		currentConfig.Cors = cors
 	}
 
-	if bm := os.Getenv(SWARM_ENV_BOOTNODE_MODE); bm != "" {
+	if bm := os.Getenv(SwarmEnvBootnodeMode); bm != "" {
 		bootnodeMode, err := strconv.ParseBool(bm)
 		if err != nil {
-			utils.Fatalf("invalid environment variable %s: %v", SWARM_ENV_BOOTNODE_MODE, err)
+			utils.Fatalf("invalid environment variable %s: %v", SwarmEnvBootnodeMode, err)
 		}
 		currentConfig.BootnodeMode = bootnodeMode
 	}
 
-	if api := os.Getenv(SWARM_GLOBALSTORE_API); api != "" {
+	if api := os.Getenv(SwarmGlobalstoreAPI); api != "" {
 		currentConfig.GlobalStoreAPI = api
 	}
 
diff --git a/cmd/swarm/config_test.go b/cmd/swarm/config_test.go
index 18be316e5fd085705c31b79ee00b58c42365e64e..869edd0f70c437ca6e5a50a7599e1e044341c637 100644
--- a/cmd/swarm/config_test.go
+++ b/cmd/swarm/config_test.go
@@ -52,7 +52,7 @@ func TestConfigFailsSwapEnabledNoSwapApi(t *testing.T) {
 	}
 
 	swarm := runSwarm(t, flags...)
-	swarm.Expect("Fatal: " + SWARM_ERR_SWAP_SET_NO_API + "\n")
+	swarm.Expect("Fatal: " + SwarmErrSwapSetNoAPI + "\n")
 	swarm.ExpectExit()
 }
 
@@ -63,7 +63,7 @@ func TestConfigFailsNoBzzAccount(t *testing.T) {
 	}
 
 	swarm := runSwarm(t, flags...)
-	swarm.Expect("Fatal: " + SWARM_ERR_NO_BZZACCOUNT + "\n")
+	swarm.Expect("Fatal: " + SwarmErrNoBZZAccount + "\n")
 	swarm.ExpectExit()
 }
 
diff --git a/cmd/swarm/flags.go b/cmd/swarm/flags.go
index b092a77476c28845f3c09ac140233168cd3168d4..39a273d8708eb1801eb41aef78bf9a3d1f93eb98 100644
--- a/cmd/swarm/flags.go
+++ b/cmd/swarm/flags.go
@@ -23,68 +23,68 @@ var (
 	ChequebookAddrFlag = cli.StringFlag{
 		Name:   "chequebook",
 		Usage:  "chequebook contract address",
-		EnvVar: SWARM_ENV_CHEQUEBOOK_ADDR,
+		EnvVar: SwarmEnvChequebookAddr,
 	}
 	SwarmAccountFlag = cli.StringFlag{
 		Name:   "bzzaccount",
 		Usage:  "Swarm account key file",
-		EnvVar: SWARM_ENV_ACCOUNT,
+		EnvVar: SwarmEnvAccount,
 	}
 	SwarmListenAddrFlag = cli.StringFlag{
 		Name:   "httpaddr",
 		Usage:  "Swarm HTTP API listening interface",
-		EnvVar: SWARM_ENV_LISTEN_ADDR,
+		EnvVar: SwarmEnvListenAddr,
 	}
 	SwarmPortFlag = cli.StringFlag{
 		Name:   "bzzport",
 		Usage:  "Swarm local http api port",
-		EnvVar: SWARM_ENV_PORT,
+		EnvVar: SwarmEnvPort,
 	}
 	SwarmNetworkIdFlag = cli.IntFlag{
 		Name:   "bzznetworkid",
 		Usage:  "Network identifier (integer, default 3=swarm testnet)",
-		EnvVar: SWARM_ENV_NETWORK_ID,
+		EnvVar: SwarmEnvNetworkID,
 	}
 	SwarmSwapEnabledFlag = cli.BoolFlag{
 		Name:   "swap",
 		Usage:  "Swarm SWAP enabled (default false)",
-		EnvVar: SWARM_ENV_SWAP_ENABLE,
+		EnvVar: SwarmEnvSwapEnable,
 	}
 	SwarmSwapAPIFlag = cli.StringFlag{
 		Name:   "swap-api",
 		Usage:  "URL of the Ethereum API provider to use to settle SWAP payments",
-		EnvVar: SWARM_ENV_SWAP_API,
+		EnvVar: SwarmEnvSwapAPI,
 	}
 	SwarmSyncDisabledFlag = cli.BoolTFlag{
 		Name:   "nosync",
 		Usage:  "Disable swarm syncing",
-		EnvVar: SWARM_ENV_SYNC_DISABLE,
+		EnvVar: SwarmEnvSyncDisable,
 	}
 	SwarmSyncUpdateDelay = cli.DurationFlag{
 		Name:   "sync-update-delay",
 		Usage:  "Duration for sync subscriptions update after no new peers are added (default 15s)",
-		EnvVar: SWARM_ENV_SYNC_UPDATE_DELAY,
+		EnvVar: SwarmEnvSyncUpdateDelay,
 	}
 	SwarmMaxStreamPeerServersFlag = cli.IntFlag{
 		Name:   "max-stream-peer-servers",
 		Usage:  "Limit of Stream peer servers, 0 denotes unlimited",
-		EnvVar: SWARM_ENV_MAX_STREAM_PEER_SERVERS,
+		EnvVar: SwarmEnvMaxStreamPeerServers,
 		Value:  10000, // A very large default value is possible as stream servers have very small memory footprint
 	}
 	SwarmLightNodeEnabled = cli.BoolFlag{
 		Name:   "lightnode",
 		Usage:  "Enable Swarm LightNode (default false)",
-		EnvVar: SWARM_ENV_LIGHT_NODE_ENABLE,
+		EnvVar: SwarmEnvLightNodeEnable,
 	}
 	SwarmDeliverySkipCheckFlag = cli.BoolFlag{
 		Name:   "delivery-skip-check",
 		Usage:  "Skip chunk delivery check (default false)",
-		EnvVar: SWARM_ENV_DELIVERY_SKIP_CHECK,
+		EnvVar: SwarmEnvDeliverySkipCheck,
 	}
 	EnsAPIFlag = cli.StringSliceFlag{
 		Name:   "ens-api",
 		Usage:  "ENS API endpoint for a TLD and with contract address, can be repeated, format [tld:][contract-addr@]url",
-		EnvVar: SWARM_ENV_ENS_API,
+		EnvVar: SwarmEnvENSAPI,
 	}
 	SwarmApiFlag = cli.StringFlag{
 		Name:  "bzzapi",
@@ -126,7 +126,7 @@ var (
 	SwarmAccessPasswordFlag = cli.StringFlag{
 		Name:   "password",
 		Usage:  "Password",
-		EnvVar: SWARM_ACCESS_PASSWORD,
+		EnvVar: SwarmAccessPassword,
 	}
 	SwarmDryRunFlag = cli.BoolFlag{
 		Name:  "dry-run",
@@ -135,22 +135,22 @@ var (
 	CorsStringFlag = cli.StringFlag{
 		Name:   "corsdomain",
 		Usage:  "Domain on which to send Access-Control-Allow-Origin header (multiple domains can be supplied separated by a ',')",
-		EnvVar: SWARM_ENV_CORS,
+		EnvVar: SwarmEnvCORS,
 	}
 	SwarmStorePath = cli.StringFlag{
 		Name:   "store.path",
 		Usage:  "Path to leveldb chunk DB (default <$GETH_ENV_DIR>/swarm/bzz-<$BZZ_KEY>/chunks)",
-		EnvVar: SWARM_ENV_STORE_PATH,
+		EnvVar: SwarmEnvStorePath,
 	}
 	SwarmStoreCapacity = cli.Uint64Flag{
 		Name:   "store.size",
 		Usage:  "Number of chunks (5M is roughly 20-25GB) (default 5000000)",
-		EnvVar: SWARM_ENV_STORE_CAPACITY,
+		EnvVar: SwarmEnvStoreCapacity,
 	}
 	SwarmStoreCacheCapacity = cli.UintFlag{
 		Name:   "store.cache.size",
 		Usage:  "Number of recent chunks cached in memory (default 5000)",
-		EnvVar: SWARM_ENV_STORE_CACHE_CAPACITY,
+		EnvVar: SwarmEnvStoreCacheCapacity,
 	}
 	SwarmCompressedFlag = cli.BoolFlag{
 		Name:  "compressed",
@@ -179,6 +179,6 @@ var (
 	SwarmGlobalStoreAPIFlag = cli.StringFlag{
 		Name:   "globalstore-api",
 		Usage:  "URL of the Global Store API provider (only for testing)",
-		EnvVar: SWARM_GLOBALSTORE_API,
+		EnvVar: SwarmGlobalstoreAPI,
 	}
 )
diff --git a/cmd/swarm/main.go b/cmd/swarm/main.go
index af00503ea3e8ecdb20d739a969f31b49fd611489..4d63255d7ab45aa76540a975a3c214a2e4811d63 100644
--- a/cmd/swarm/main.go
+++ b/cmd/swarm/main.go
@@ -76,8 +76,8 @@ var gitCommit string
 
 //declare a few constant error messages, useful for later error check comparisons in test
 var (
-	SWARM_ERR_NO_BZZACCOUNT   = "bzzaccount option is required but not set; check your config file, command line or environment variables"
-	SWARM_ERR_SWAP_SET_NO_API = "SWAP is enabled but --swap-api is not set"
+	SwarmErrNoBZZAccount = "bzzaccount option is required but not set; check your config file, command line or environment variables"
+	SwarmErrSwapSetNoAPI = "SWAP is enabled but --swap-api is not set"
 )
 
 // this help command gets added to any subcommand that does not define it explicitly
@@ -351,7 +351,7 @@ func registerBzzService(bzzconfig *bzzapi.Config, stack *node.Node) {
 func getAccount(bzzaccount string, ctx *cli.Context, stack *node.Node) *ecdsa.PrivateKey {
 	//an account is mandatory
 	if bzzaccount == "" {
-		utils.Fatalf(SWARM_ERR_NO_BZZACCOUNT)
+		utils.Fatalf(SwarmErrNoBZZAccount)
 	}
 	// Try to load the arg as a hex key file.
 	if key, err := crypto.LoadECDSA(bzzaccount); err == nil {
diff --git a/cmd/swarm/upload.go b/cmd/swarm/upload.go
index 992f2d6e976ff43c94a0f7ea4160b60a89ad76f0..ab0790835171dd1f5bffb61642ea9030e4e5c32b 100644
--- a/cmd/swarm/upload.go
+++ b/cmd/swarm/upload.go
@@ -60,10 +60,10 @@ func upload(ctx *cli.Context) {
 		autoDefaultPath = false
 		file            string
 	)
-	if autoDefaultPathString := os.Getenv(SWARM_AUTO_DEFAULTPATH); autoDefaultPathString != "" {
+	if autoDefaultPathString := os.Getenv(SwarmAutoDefaultPath); autoDefaultPathString != "" {
 		b, err := strconv.ParseBool(autoDefaultPathString)
 		if err != nil {
-			utils.Fatalf("invalid environment variable %s: %v", SWARM_AUTO_DEFAULTPATH, err)
+			utils.Fatalf("invalid environment variable %s: %v", SwarmAutoDefaultPath, err)
 		}
 		autoDefaultPath = b
 	}
diff --git a/swarm/api/act.go b/swarm/api/act.go
index 9566720b03312cb096fe7a26eb43f688116deb03..a79f1944b98e6fcb5b3b5c07af0a3587a09615cd 100644
--- a/swarm/api/act.go
+++ b/swarm/api/act.go
@@ -33,7 +33,7 @@ var (
 	}
 )
 
-const EMPTY_CREDENTIALS = ""
+const EmptyCredentials = ""
 
 type AccessEntry struct {
 	Type      AccessType
diff --git a/swarm/api/api.go b/swarm/api/api.go
index c6ca1b57742e621746017dd7ff65bc18c0b4dd78..86c11192326124e942c9369ace4f4cb189fc5687 100644
--- a/swarm/api/api.go
+++ b/swarm/api/api.go
@@ -431,7 +431,7 @@ func (a *API) Delete(ctx context.Context, addr string, path string) (storage.Add
 		apiDeleteFail.Inc(1)
 		return nil, err
 	}
-	key, err := a.ResolveURI(ctx, uri, EMPTY_CREDENTIALS)
+	key, err := a.ResolveURI(ctx, uri, EmptyCredentials)
 
 	if err != nil {
 		return nil, err
@@ -643,7 +643,7 @@ func (a *API) AddFile(ctx context.Context, mhash, path, fname string, content []
 		apiAddFileFail.Inc(1)
 		return nil, "", err
 	}
-	mkey, err := a.ResolveURI(ctx, uri, EMPTY_CREDENTIALS)
+	mkey, err := a.ResolveURI(ctx, uri, EmptyCredentials)
 	if err != nil {
 		apiAddFileFail.Inc(1)
 		return nil, "", err
@@ -760,7 +760,7 @@ func (a *API) RemoveFile(ctx context.Context, mhash string, path string, fname s
 		apiRmFileFail.Inc(1)
 		return "", err
 	}
-	mkey, err := a.ResolveURI(ctx, uri, EMPTY_CREDENTIALS)
+	mkey, err := a.ResolveURI(ctx, uri, EmptyCredentials)
 	if err != nil {
 		apiRmFileFail.Inc(1)
 		return "", err
@@ -827,7 +827,7 @@ func (a *API) AppendFile(ctx context.Context, mhash, path, fname string, existin
 		apiAppendFileFail.Inc(1)
 		return nil, "", err
 	}
-	mkey, err := a.ResolveURI(ctx, uri, EMPTY_CREDENTIALS)
+	mkey, err := a.ResolveURI(ctx, uri, EmptyCredentials)
 	if err != nil {
 		apiAppendFileFail.Inc(1)
 		return nil, "", err
diff --git a/swarm/fuse/swarmfs.go b/swarm/fuse/swarmfs.go
index c7aa983b7dceeff44ee9844c9f66a14df11aa10c..db6aefb54c24c351d1742c6dfb68cce521c22cc4 100644
--- a/swarm/fuse/swarmfs.go
+++ b/swarm/fuse/swarmfs.go
@@ -24,10 +24,10 @@ import (
 )
 
 const (
-	Swarmfs_Version = "0.1"
-	mountTimeout    = time.Second * 5
-	unmountTimeout  = time.Second * 10
-	maxFuseMounts   = 5
+	SwarmFSVersion = "0.1"
+	mountTimeout   = time.Second * 5
+	unmountTimeout = time.Second * 10
+	maxFUSEMounts  = 5
 )
 
 var (
diff --git a/swarm/fuse/swarmfs_unix.go b/swarm/fuse/swarmfs_unix.go
index 9ff55cc324f74c784d74cdf01737fcab9fd413df..54b879a4dad7875845eda1c2594e9fd9aae6dec3 100644
--- a/swarm/fuse/swarmfs_unix.go
+++ b/swarm/fuse/swarmfs_unix.go
@@ -96,7 +96,7 @@ func (swarmfs *SwarmFS) Mount(mhash, mountpoint string) (*MountInfo, error) {
 
 	noOfActiveMounts := len(swarmfs.activeMounts)
 	log.Debug("swarmfs mount", "# active mounts", noOfActiveMounts)
-	if noOfActiveMounts >= maxFuseMounts {
+	if noOfActiveMounts >= maxFUSEMounts {
 		return nil, errMaxMountCount
 	}
 
diff --git a/swarm/network/stream/peer.go b/swarm/network/stream/peer.go
index c59799e08a513ebbc72db0c813d4b81d9c0aef98..1d3868a66b4a89eed518673abc7649533d301db4 100644
--- a/swarm/network/stream/peer.go
+++ b/swarm/network/stream/peer.go
@@ -101,20 +101,20 @@ func NewPeer(peer *protocols.Peer, streamer *Registry) *Peer {
 		for {
 			select {
 			case <-ticker.C:
-				var len_maxi int
-				var cap_maxi int
+				var lenMaxi int
+				var capMaxi int
 				for k := range pq.Queues {
-					if len_maxi < len(pq.Queues[k]) {
-						len_maxi = len(pq.Queues[k])
+					if lenMaxi < len(pq.Queues[k]) {
+						lenMaxi = len(pq.Queues[k])
 					}
 
-					if cap_maxi < cap(pq.Queues[k]) {
-						cap_maxi = cap(pq.Queues[k])
+					if capMaxi < cap(pq.Queues[k]) {
+						capMaxi = cap(pq.Queues[k])
 					}
 				}
 
-				metrics.GetOrRegisterGauge(fmt.Sprintf("pq_len_%s", p.ID().TerminalString()), nil).Update(int64(len_maxi))
-				metrics.GetOrRegisterGauge(fmt.Sprintf("pq_cap_%s", p.ID().TerminalString()), nil).Update(int64(cap_maxi))
+				metrics.GetOrRegisterGauge(fmt.Sprintf("pq_len_%s", p.ID().TerminalString()), nil).Update(int64(lenMaxi))
+				metrics.GetOrRegisterGauge(fmt.Sprintf("pq_cap_%s", p.ID().TerminalString()), nil).Update(int64(capMaxi))
 			case <-p.quit:
 				return
 			}
diff --git a/swarm/storage/ldbstore_test.go b/swarm/storage/ldbstore_test.go
index 9e7aba545d7bd66ba55511ff888e3ff37fd380bb..65b72acec8859d3603a2f8f383f2828c245ef49e 100644
--- a/swarm/storage/ldbstore_test.go
+++ b/swarm/storage/ldbstore_test.go
@@ -193,7 +193,7 @@ func testIterator(t *testing.T, mock bool) {
 	var i int
 	var poc uint
 	chunkkeys := NewAddressCollection(chunkcount)
-	chunkkeys_results := NewAddressCollection(chunkcount)
+	chunkkeysResults := NewAddressCollection(chunkcount)
 
 	db, cleanup, err := newTestDbStore(mock, false)
 	defer cleanup()
@@ -218,7 +218,7 @@ func testIterator(t *testing.T, mock bool) {
 	for poc = 0; poc <= 255; poc++ {
 		err := db.SyncIterator(0, uint64(chunkkeys.Len()), uint8(poc), func(k Address, n uint64) bool {
 			log.Trace(fmt.Sprintf("Got key %v number %d poc %d", k, n, uint8(poc)))
-			chunkkeys_results[n] = k
+			chunkkeysResults[n] = k
 			i++
 			return true
 		})
@@ -228,8 +228,8 @@ func testIterator(t *testing.T, mock bool) {
 	}
 
 	for i = 0; i < chunkcount; i++ {
-		if !bytes.Equal(chunkkeys[i], chunkkeys_results[i]) {
-			t.Fatalf("Chunk put #%d key '%v' does not match iterator's key '%v'", i, chunkkeys[i], chunkkeys_results[i])
+		if !bytes.Equal(chunkkeys[i], chunkkeysResults[i]) {
+			t.Fatalf("Chunk put #%d key '%v' does not match iterator's key '%v'", i, chunkkeys[i], chunkkeysResults[i])
 		}
 	}
 
diff --git a/swarm/swarm.go b/swarm/swarm.go
index 651ad97c784271bb629a1c17da289b06a676d412..b4b08c5c544edc7111ed5a329cce48e58b24e9a4 100644
--- a/swarm/swarm.go
+++ b/swarm/swarm.go
@@ -508,7 +508,7 @@ func (s *Swarm) APIs() []rpc.API {
 		},
 		{
 			Namespace: "swarmfs",
-			Version:   fuse.Swarmfs_Version,
+			Version:   fuse.SwarmFSVersion,
 			Service:   s.sfs,
 			Public:    false,
 		},