TheArchive/tailscale
1
0
Fork 0
mirror of https://github.com/tailscale/tailscale.git synced 2025-08-12 05:37:32 +00:00
Code Issues Packages Projects Releases Wiki Activity

types/netmap, all: use read-only tailcfg.NodeView in NetworkMap

Browse Source 
Updates #8948

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
This commit is contained in:
Brad Fitzpatrick
2023-08-18 07:57:44 -07:00
committed by Brad Fitzpatrick
parent b040094b90
commit 58a4fd43d8
32 changed files with 501 additions and 422 deletions
Download Patch File Download Diff File Expand all files Collapse all files

36
wgengine/wgcfg/nmcfg/nmcfg.go
View File

@@ -19,30 +19,31 @@ import (
"tailscale.com/wgengine/wgcfg"
)
func nodeDebugName(n *tailcfg.Node) string {
name := n.Name
func nodeDebugName(n tailcfg.NodeView) string {
name := n.Name()
if name == "" {
name = n.Hostinfo.Hostname()
name = n.Hostinfo().Hostname()
}
if i := strings.Index(name, "."); i != -1 {
name = name[:i]
}
if name == "" && len(n.Addresses) != 0 {
return n.Addresses[0].String()
if name == "" && n.Addresses().Len() != 0 {
return n.Addresses().At(0).String()
}
return name
}
// cidrIsSubnet reports whether cidr is a non-default-route subnet
// exported by node that is not one of its own self addresses.
func cidrIsSubnet(node *tailcfg.Node, cidr netip.Prefix) bool {
func cidrIsSubnet(node tailcfg.NodeView, cidr netip.Prefix) bool {
if cidr.Bits() == 0 {
return false
}
if !cidr.IsSingleIP() {
return true
}
for _, selfCIDR := range node.Addresses {
for i := range node.Addresses().LenIter() {
selfCIDR := node.Addresses().At(i)
if cidr == selfCIDR {
return false
}
@@ -85,22 +86,23 @@ func WGCfg(nm *netmap.NetworkMap, logf logger.Logf, flags netmap.WGConfigFlags,
skippedSubnets := new(bytes.Buffer)
for _, peer := range nm.Peers {
if peer.DiscoKey.IsZero() && peer.DERP == "" && !peer.IsWireGuardOnly {
if peer.DiscoKey().IsZero() && peer.DERP() == "" && !peer.IsWireGuardOnly() {
// Peer predates both DERP and active discovery, we cannot
// communicate with it.
logf("[v1] wgcfg: skipped peer %s, doesn't offer DERP or disco", peer.Key.ShortString())
logf("[v1] wgcfg: skipped peer %s, doesn't offer DERP or disco", peer.Key().ShortString())
continue
}
cfg.Peers = append(cfg.Peers, wgcfg.Peer{
PublicKey: peer.Key,
DiscoKey: peer.DiscoKey,
PublicKey: peer.Key(),
DiscoKey: peer.DiscoKey(),
})
cpeer := &cfg.Peers[len(cfg.Peers)-1]
didExitNodeWarn := false
cpeer.V4MasqAddr = peer.SelfNodeV4MasqAddrForThisPeer
for _, allowedIP := range peer.AllowedIPs {
if allowedIP.Bits() == 0 && peer.StableID != exitNode {
cpeer.V4MasqAddr = peer.SelfNodeV4MasqAddrForThisPeer()
for i := range peer.AllowedIPs().LenIter() {
allowedIP := peer.AllowedIPs().At(i)
if allowedIP.Bits() == 0 && peer.StableID() != exitNode {
if didExitNodeWarn {
// Don't log about both the IPv4 /0 and IPv6 /0.
continue
@@ -109,20 +111,20 @@ func WGCfg(nm *netmap.NetworkMap, logf logger.Logf, flags netmap.WGConfigFlags,
if skippedUnselected.Len() > 0 {
skippedUnselected.WriteString(", ")
}
fmt.Fprintf(skippedUnselected, "%q (%v)", nodeDebugName(peer), peer.Key.ShortString())
fmt.Fprintf(skippedUnselected, "%q (%v)", nodeDebugName(peer), peer.Key().ShortString())
continue
} else if allowedIP.IsSingleIP() && tsaddr.IsTailscaleIP(allowedIP.Addr()) && (flags&netmap.AllowSingleHosts) == 0 {
if skippedIPs.Len() > 0 {
skippedIPs.WriteString(", ")
}
fmt.Fprintf(skippedIPs, "%v from %q (%v)", allowedIP.Addr(), nodeDebugName(peer), peer.Key.ShortString())
fmt.Fprintf(skippedIPs, "%v from %q (%v)", allowedIP.Addr(), nodeDebugName(peer), peer.Key().ShortString())
continue
} else if cidrIsSubnet(peer, allowedIP) {
if (flags & netmap.AllowSubnetRoutes) == 0 {
if skippedSubnets.Len() > 0 {
skippedSubnets.WriteString(", ")
}
fmt.Fprintf(skippedSubnets, "%v from %q (%v)", allowedIP, nodeDebugName(peer), peer.Key.ShortString())
fmt.Fprintf(skippedSubnets, "%v from %q (%v)", allowedIP, nodeDebugName(peer), peer.Key().ShortString())
continue
}
}