update gobgp pkg

This commit is contained in:
Ian Azpiazu
2022-05-16 13:40:57 -04:00
parent 878ee3a63e
commit 80d743ffa5
652 changed files with 136451 additions and 98241 deletions

View File

@@ -1,14 +1,19 @@
package farm
import (
"encoding/binary"
"math/bits"
)
func hash32Len5to12(s []byte, seed uint32) uint32 {
slen := len(s)
a := uint32(len(s))
b := uint32(len(s) * 5)
c := uint32(9)
d := b + seed
a += fetch32(s, 0)
b += fetch32(s, slen-4)
c += fetch32(s, ((slen >> 1) & 4))
a += binary.LittleEndian.Uint32(s[0 : 0+4])
b += binary.LittleEndian.Uint32(s[slen-4 : slen-4+4])
c += binary.LittleEndian.Uint32(s[((slen >> 1) & 4) : ((slen>>1)&4)+4])
return fmix(seed ^ mur(c, mur(b, mur(a, d))))
}
@@ -31,32 +36,31 @@ func Hash32(s []byte) uint32 {
h := uint32(slen)
g := c1 * uint32(slen)
f := g
a0 := rotate32(fetch32(s, slen-4)*c1, 17) * c2
a1 := rotate32(fetch32(s, slen-8)*c1, 17) * c2
a2 := rotate32(fetch32(s, slen-16)*c1, 17) * c2
a3 := rotate32(fetch32(s, slen-12)*c1, 17) * c2
a4 := rotate32(fetch32(s, slen-20)*c1, 17) * c2
a0 := bits.RotateLeft32(binary.LittleEndian.Uint32(s[slen-4:slen-4+4])*c1, -17) * c2
a1 := bits.RotateLeft32(binary.LittleEndian.Uint32(s[slen-8:slen-8+4])*c1, -17) * c2
a2 := bits.RotateLeft32(binary.LittleEndian.Uint32(s[slen-16:slen-16+4])*c1, -17) * c2
a3 := bits.RotateLeft32(binary.LittleEndian.Uint32(s[slen-12:slen-12+4])*c1, -17) * c2
a4 := bits.RotateLeft32(binary.LittleEndian.Uint32(s[slen-20:slen-20+4])*c1, -17) * c2
h ^= a0
h = rotate32(h, 19)
h = bits.RotateLeft32(h, -19)
h = h*5 + 0xe6546b64
h ^= a2
h = rotate32(h, 19)
h = bits.RotateLeft32(h, -19)
h = h*5 + 0xe6546b64
g ^= a1
g = rotate32(g, 19)
g = bits.RotateLeft32(g, -19)
g = g*5 + 0xe6546b64
g ^= a3
g = rotate32(g, 19)
g = bits.RotateLeft32(g, -19)
g = g*5 + 0xe6546b64
f += a4
f = rotate32(f, 19) + 113
iters := (slen - 1) / 20
for {
a := fetch32(s, 0)
b := fetch32(s, 4)
c := fetch32(s, 8)
d := fetch32(s, 12)
e := fetch32(s, 16)
f = bits.RotateLeft32(f, -19) + 113
for len(s) > 20 {
a := binary.LittleEndian.Uint32(s[0 : 0+4])
b := binary.LittleEndian.Uint32(s[4 : 4+4])
c := binary.LittleEndian.Uint32(s[8 : 8+4])
d := binary.LittleEndian.Uint32(s[12 : 12+4])
e := binary.LittleEndian.Uint32(s[16 : 16+4])
h += a
g += b
f += c
@@ -66,21 +70,17 @@ func Hash32(s []byte) uint32 {
f += g
g += f
s = s[20:]
iters--
if iters == 0 {
break
}
}
g = rotate32(g, 11) * c1
g = rotate32(g, 17) * c1
f = rotate32(f, 11) * c1
f = rotate32(f, 17) * c1
h = rotate32(h+g, 19)
g = bits.RotateLeft32(g, -11) * c1
g = bits.RotateLeft32(g, -17) * c1
f = bits.RotateLeft32(f, -11) * c1
f = bits.RotateLeft32(f, -17) * c1
h = bits.RotateLeft32(h+g, -19)
h = h*5 + 0xe6546b64
h = rotate32(h, 17) * c1
h = rotate32(h+f, 19)
h = bits.RotateLeft32(h, -17) * c1
h = bits.RotateLeft32(h+f, -19)
h = h*5 + 0xe6546b64
h = rotate32(h, 17) * c1
h = bits.RotateLeft32(h, -17) * c1
return h
}