Files
zeekay b61441f7d7 Volume: node-local persistent volumes, under our own name
A fork of Rancher's local-path-provisioner at v0.0.36. The behaviour is
unchanged and deliberately so — a directory on the node a pod lands on is
the right thing for a disk. What changes is identity.

The provisioner answers to hanzo.ai/volume rather than rancher.io/local-path.
That is not branding: two provisioners sharing one name race for the same
claims, and a stock k3s carries the upstream one, so a cluster running both
would settle our storage by chance. Data lives at /var/lib/hanzo/volume, so
reading a Hanzo cluster does not mean learning another vendor's directory.

Apache-2.0 as published, unaltered, with Rancher's attribution in NOTICE.

The README says what this is not: durability. A volume here dies with its
node. That is hanzoai/replicate's question, one layer up, and keeping the
two apart is what lets the disk stay this simple.
2026-09-07 17:30:01 -07:00

76 lines
1.7 KiB
Go

// Copyright 2012 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.
//go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris
package ipv4
import (
"unsafe"
"golang.org/x/net/internal/iana"
"golang.org/x/net/internal/socket"
"golang.org/x/sys/unix"
)
func setControlMessage(c *socket.Conn, opt *rawOpt, cf ControlFlags, on bool) error {
opt.Lock()
defer opt.Unlock()
if so, ok := sockOpts[ssoReceiveTTL]; ok && cf&FlagTTL != 0 {
if err := so.SetInt(c, boolint(on)); err != nil {
return err
}
if on {
opt.set(FlagTTL)
} else {
opt.clear(FlagTTL)
}
}
if so, ok := sockOpts[ssoPacketInfo]; ok {
if cf&(FlagSrc|FlagDst|FlagInterface) != 0 {
if err := so.SetInt(c, boolint(on)); err != nil {
return err
}
if on {
opt.set(cf & (FlagSrc | FlagDst | FlagInterface))
} else {
opt.clear(cf & (FlagSrc | FlagDst | FlagInterface))
}
}
} else {
if so, ok := sockOpts[ssoReceiveDst]; ok && cf&FlagDst != 0 {
if err := so.SetInt(c, boolint(on)); err != nil {
return err
}
if on {
opt.set(FlagDst)
} else {
opt.clear(FlagDst)
}
}
if so, ok := sockOpts[ssoReceiveInterface]; ok && cf&FlagInterface != 0 {
if err := so.SetInt(c, boolint(on)); err != nil {
return err
}
if on {
opt.set(FlagInterface)
} else {
opt.clear(FlagInterface)
}
}
}
return nil
}
func marshalTTL(b []byte, cm *ControlMessage) []byte {
m := socket.ControlMessage(b)
m.MarshalHeader(iana.ProtocolIP, unix.IP_RECVTTL, 1)
return m.Next(1)
}
func parseTTL(cm *ControlMessage, b []byte) {
cm.TTL = int(*(*byte)(unsafe.Pointer(&b[:1][0])))
}