[VOL-2193] Create mocks for Kafka Client and Etcd
This commit consists of:
1) A kafka client mock that implements the kafka client interface
under voltha-lib-go/pkg/kafka/client.go
2) An embedded Etcd server that runs in-process and represents an
Etcd server.
Change-Id: I52a36132568e08c596bb4136918bebcb654a3b99
diff --git a/vendor/golang.org/x/crypto/blowfish/block.go b/vendor/golang.org/x/crypto/blowfish/block.go
new file mode 100644
index 0000000..9d80f19
--- /dev/null
+++ b/vendor/golang.org/x/crypto/blowfish/block.go
@@ -0,0 +1,159 @@
+// Copyright 2010 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package blowfish
+
+// getNextWord returns the next big-endian uint32 value from the byte slice
+// at the given position in a circular manner, updating the position.
+func getNextWord(b []byte, pos *int) uint32 {
+ var w uint32
+ j := *pos
+ for i := 0; i < 4; i++ {
+ w = w<<8 | uint32(b[j])
+ j++
+ if j >= len(b) {
+ j = 0
+ }
+ }
+ *pos = j
+ return w
+}
+
+// ExpandKey performs a key expansion on the given *Cipher. Specifically, it
+// performs the Blowfish algorithm's key schedule which sets up the *Cipher's
+// pi and substitution tables for calls to Encrypt. This is used, primarily,
+// by the bcrypt package to reuse the Blowfish key schedule during its
+// set up. It's unlikely that you need to use this directly.
+func ExpandKey(key []byte, c *Cipher) {
+ j := 0
+ for i := 0; i < 18; i++ {
+ // Using inlined getNextWord for performance.
+ var d uint32
+ for k := 0; k < 4; k++ {
+ d = d<<8 | uint32(key[j])
+ j++
+ if j >= len(key) {
+ j = 0
+ }
+ }
+ c.p[i] ^= d
+ }
+
+ var l, r uint32
+ for i := 0; i < 18; i += 2 {
+ l, r = encryptBlock(l, r, c)
+ c.p[i], c.p[i+1] = l, r
+ }
+
+ for i := 0; i < 256; i += 2 {
+ l, r = encryptBlock(l, r, c)
+ c.s0[i], c.s0[i+1] = l, r
+ }
+ for i := 0; i < 256; i += 2 {
+ l, r = encryptBlock(l, r, c)
+ c.s1[i], c.s1[i+1] = l, r
+ }
+ for i := 0; i < 256; i += 2 {
+ l, r = encryptBlock(l, r, c)
+ c.s2[i], c.s2[i+1] = l, r
+ }
+ for i := 0; i < 256; i += 2 {
+ l, r = encryptBlock(l, r, c)
+ c.s3[i], c.s3[i+1] = l, r
+ }
+}
+
+// This is similar to ExpandKey, but folds the salt during the key
+// schedule. While ExpandKey is essentially expandKeyWithSalt with an all-zero
+// salt passed in, reusing ExpandKey turns out to be a place of inefficiency
+// and specializing it here is useful.
+func expandKeyWithSalt(key []byte, salt []byte, c *Cipher) {
+ j := 0
+ for i := 0; i < 18; i++ {
+ c.p[i] ^= getNextWord(key, &j)
+ }
+
+ j = 0
+ var l, r uint32
+ for i := 0; i < 18; i += 2 {
+ l ^= getNextWord(salt, &j)
+ r ^= getNextWord(salt, &j)
+ l, r = encryptBlock(l, r, c)
+ c.p[i], c.p[i+1] = l, r
+ }
+
+ for i := 0; i < 256; i += 2 {
+ l ^= getNextWord(salt, &j)
+ r ^= getNextWord(salt, &j)
+ l, r = encryptBlock(l, r, c)
+ c.s0[i], c.s0[i+1] = l, r
+ }
+
+ for i := 0; i < 256; i += 2 {
+ l ^= getNextWord(salt, &j)
+ r ^= getNextWord(salt, &j)
+ l, r = encryptBlock(l, r, c)
+ c.s1[i], c.s1[i+1] = l, r
+ }
+
+ for i := 0; i < 256; i += 2 {
+ l ^= getNextWord(salt, &j)
+ r ^= getNextWord(salt, &j)
+ l, r = encryptBlock(l, r, c)
+ c.s2[i], c.s2[i+1] = l, r
+ }
+
+ for i := 0; i < 256; i += 2 {
+ l ^= getNextWord(salt, &j)
+ r ^= getNextWord(salt, &j)
+ l, r = encryptBlock(l, r, c)
+ c.s3[i], c.s3[i+1] = l, r
+ }
+}
+
+func encryptBlock(l, r uint32, c *Cipher) (uint32, uint32) {
+ xl, xr := l, r
+ xl ^= c.p[0]
+ xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[1]
+ xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[2]
+ xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[3]
+ xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[4]
+ xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[5]
+ xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[6]
+ xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[7]
+ xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[8]
+ xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[9]
+ xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[10]
+ xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[11]
+ xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[12]
+ xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[13]
+ xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[14]
+ xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[15]
+ xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[16]
+ xr ^= c.p[17]
+ return xr, xl
+}
+
+func decryptBlock(l, r uint32, c *Cipher) (uint32, uint32) {
+ xl, xr := l, r
+ xl ^= c.p[17]
+ xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[16]
+ xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[15]
+ xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[14]
+ xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[13]
+ xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[12]
+ xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[11]
+ xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[10]
+ xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[9]
+ xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[8]
+ xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[7]
+ xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[6]
+ xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[5]
+ xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[4]
+ xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[3]
+ xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[2]
+ xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[1]
+ xr ^= c.p[0]
+ return xr, xl
+}