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From 779f980451d20079b34812f7006f2d7230738ad0 Mon Sep 17 00:00:00 2001
From: csepp <raingloom@riseup.net>
Date: Wed, 3 Nov 2021 21:14:54 +0100
Subject: [PATCH] add extra config file option to yggdrasil command
This is useful in Guix and Nix, because one config file can come
from the world-readable store and another can be placed directly
into /etc with much stricter permissions.
---
cmd/yggdrasil/main.go | 29 ++++++++++++++++++++++-------
1 file changed, 22 insertions(+), 7 deletions(-)
diff --git a/cmd/yggdrasil/main.go b/cmd/yggdrasil/main.go
index 58b8230..b9df98a 100644
--- a/cmd/yggdrasil/main.go
+++ b/cmd/yggdrasil/main.go
@@ -43,11 +43,12 @@ type node struct {
admin *admin.AdminSocket
}
-func readConfig(log *log.Logger, useconf bool, useconffile string, normaliseconf bool) *config.NodeConfig {
+func readConfig(log *log.Logger, useconf bool, useconffile string, extraconffile string, normaliseconf bool) *config.NodeConfig {
// Use a configuration file. If -useconf, the configuration will be read
// from stdin. If -useconffile, the configuration will be read from the
// filesystem.
var conf []byte
+ var extraconf []byte
var err error
if useconffile != "" {
// Read the file from the filesystem
@@ -59,6 +60,21 @@ func readConfig(log *log.Logger, useconf bool, useconffile string, normaliseconf
if err != nil {
panic(err)
}
+ if extraconffile != "" {
+ extraconf, err = os.ReadFile(extraconffile);
+ }
+ if err != nil {
+ panic(err)
+ }
+ // Generate a new configuration - this gives us a set of sane defaults -
+ // then parse the configuration we loaded above on top of it. The effect
+ // of this is that any configuration item that is missing from the provided
+ // configuration will use a sane default.
+ cfg := defaults.GenerateConfig()
+ var confs [2][]byte
+ confs[0]=conf
+ confs[1]=extraconf
+ for _, conf := range confs { if len(conf)>0 {
// If there's a byte order mark - which Windows 10 is now incredibly fond of
// throwing everywhere when it's converting things into UTF-16 for the hell
// of it - remove it and decode back down into UTF-8. This is necessary
@@ -72,11 +88,6 @@ func readConfig(log *log.Logger, useconf bool, useconffile string, normaliseconf
panic(err)
}
}
- // Generate a new configuration - this gives us a set of sane defaults -
- // then parse the configuration we loaded above on top of it. The effect
- // of this is that any configuration item that is missing from the provided
- // configuration will use a sane default.
- cfg := defaults.GenerateConfig()
var dat map[string]interface{}
if err := hjson.Unmarshal(conf, &dat); err != nil {
panic(err)
@@ -136,6 +147,7 @@ func readConfig(log *log.Logger, useconf bool, useconffile string, normaliseconf
if err = mapstructure.Decode(dat, &cfg); err != nil {
panic(err)
}
+ }}
return cfg
}
@@ -192,6 +204,7 @@ type yggArgs struct {
getaddr bool
getsnet bool
useconffile string
+ extraconffile string
logto string
loglevel string
}
@@ -200,6 +213,7 @@ func getArgs() yggArgs {
genconf := flag.Bool("genconf", false, "print a new config to stdout")
useconf := flag.Bool("useconf", false, "read HJSON/JSON config from stdin")
useconffile := flag.String("useconffile", "", "read HJSON/JSON config from specified file path")
+ extraconffile := flag.String("extraconffile", "", "extra (usually private) HJSON/JSON config from specified file path")
normaliseconf := flag.Bool("normaliseconf", false, "use in combination with either -useconf or -useconffile, outputs your configuration normalised")
confjson := flag.Bool("json", false, "print configuration from -genconf or -normaliseconf as JSON instead of HJSON")
autoconf := flag.Bool("autoconf", false, "automatic mode (dynamic IP, peer with IPv6 neighbors)")
@@ -213,6 +227,7 @@ func getArgs() yggArgs {
genconf: *genconf,
useconf: *useconf,
useconffile: *useconffile,
+ extraconffile: *extraconffile,
normaliseconf: *normaliseconf,
confjson: *confjson,
autoconf: *autoconf,
@@ -265,7 +280,7 @@ func run(args yggArgs, ctx context.Context, done chan struct{}) {
cfg = defaults.GenerateConfig()
case args.useconffile != "" || args.useconf:
// Read the configuration from either stdin or from the filesystem
- cfg = readConfig(logger, args.useconf, args.useconffile, args.normaliseconf)
+ cfg = readConfig(logger, args.useconf, args.useconffile, args.extraconffile, args.normaliseconf)
// If the -normaliseconf option was specified then remarshal the above
// configuration and print it back to stdout. This lets the user update
// their configuration file with newly mapped names (like above) or to
--
2.33.1
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