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

45 lines
1020 B
Go

// Copyright 2014 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 darwin || freebsd || linux
package ipv4
import (
"net"
"unsafe"
"golang.org/x/net/internal/socket"
"golang.org/x/sys/unix"
)
func (so *sockOpt) getIPMreqn(c *socket.Conn) (*net.Interface, error) {
b := make([]byte, so.Len)
if _, err := so.Get(c, b); err != nil {
return nil, err
}
mreqn := (*unix.IPMreqn)(unsafe.Pointer(&b[0]))
if mreqn.Ifindex == 0 {
return nil, nil
}
ifi, err := net.InterfaceByIndex(int(mreqn.Ifindex))
if err != nil {
return nil, err
}
return ifi, nil
}
func (so *sockOpt) setIPMreqn(c *socket.Conn, ifi *net.Interface, grp net.IP) error {
var mreqn unix.IPMreqn
if ifi != nil {
mreqn.Ifindex = int32(ifi.Index)
}
if grp != nil {
mreqn.Multiaddr = [4]byte{grp[0], grp[1], grp[2], grp[3]}
}
b := (*[unix.SizeofIPMreqn]byte)(unsafe.Pointer(&mreqn))[:unix.SizeofIPMreqn]
return so.Set(c, b)
}