lib/upgrade: Send OS version header to upgrade server (#9663)v1.27.11-rc.2v1.27.11

This adds a header with the operating system version, verbatim in
whatever format the operating system reports it, to the upgrade check.
The intention is that the upgrade server can use this information to
filter out (or maybe just mark) potentially unsupported upgrades.

5 files changed, 32 insertions, 6 deletions

diff --git a/go.mod b/go.mod
index 4a1743f1a9..0f449c2cac 100644
--- a/go.mod
+++ b/go.mod
@@ -31,7 +31,7 @@ require (
 	github.com/quic-go/quic-go v0.46.0
 	github.com/rabbitmq/amqp091-go v1.10.0
 	github.com/rcrowley/go-metrics v0.0.0-20201227073835-cf1acfcdf475
-	github.com/shirou/gopsutil/v3 v3.24.5
+	github.com/shirou/gopsutil/v4 v4.24.7
 	github.com/syncthing/notify v0.0.0-20210616190510-c6b7342338d2
 	github.com/syndtr/goleveldb v1.0.1-0.20220721030215-126854af5e6d
 	github.com/thejerf/suture/v4 v4.0.5
@@ -66,6 +66,7 @@ require (
 	github.com/google/uuid v1.6.0 // indirect
 	github.com/hashicorp/errwrap v1.1.0 // indirect
 	github.com/hashicorp/go-multierror v1.1.1 // indirect
+	github.com/lufia/plan9stats v0.0.0-20211012122336-39d0f177ccd0 // indirect
 	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
 	github.com/nxadm/tail v1.4.11 // indirect
 	github.com/onsi/ginkgo/v2 v2.20.0 // indirect
@@ -79,8 +80,11 @@ require (
 	github.com/prometheus/procfs v0.15.1 // indirect
 	github.com/riywo/loginshell v0.0.0-20200815045211-7d26008be1ab // indirect
 	github.com/russross/blackfriday/v2 v2.1.0 // indirect
+	github.com/shoenig/go-m1cpu v0.1.6 // indirect
 	github.com/stretchr/objx v0.5.2 // indirect
 	github.com/stretchr/testify v1.9.0 // indirect
+	github.com/tklauser/go-sysconf v0.3.12 // indirect
+	github.com/tklauser/numcpus v0.6.1 // indirect
 	github.com/yusufpapurcu/wmi v1.2.4 // indirect
 	go.uber.org/mock v0.4.0 // indirect
 	golang.org/x/exp v0.0.0-20240808152545-0cdaa3abc0fa // indirect
diff --git a/go.sum b/go.sum
index 1a95e7c562..635211c392 100644
--- a/go.sum
+++ b/go.sum
@@ -79,6 +79,7 @@ github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMyw
 github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
 github.com/google/go-cmp v0.4.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
+github.com/google/go-cmp v0.5.6/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/go-cmp v0.5.7/go.mod h1:n+brtR0CgQNWTVd5ZUFpTBC8YFBDLK/h/bpaJ8/DtOE=
 github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
 github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
@@ -134,6 +135,8 @@ github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
 github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
 github.com/lib/pq v1.10.9 h1:YXG7RB+JIjhP29X+OtkiDnYaXQwpS4JEWq7dtCCRUEw=
 github.com/lib/pq v1.10.9/go.mod h1:AlVN5x4E4T544tWzH6hKfbfQvm3HdbOxrmggDNAPY9o=
+github.com/lufia/plan9stats v0.0.0-20211012122336-39d0f177ccd0 h1:6E+4a0GO5zZEnZ81pIr0yLvtUWk2if982qA3F3QD6H4=
+github.com/lufia/plan9stats v0.0.0-20211012122336-39d0f177ccd0/go.mod h1:zJYVVT2jmtg6P3p1VtQj7WsuWi/y4VnjVBn7F8KPB3I=
 github.com/maruel/panicparse/v2 v2.3.1 h1:NtJavmbMn0DyzmmSStE8yUsmPZrZmudPH7kplxBinOA=
 github.com/maruel/panicparse/v2 v2.3.1/go.mod h1:s3UmQB9Fm/n7n/prcD2xBGDkwXD6y2LeZnhbEXvs9Dg=
 github.com/mattn/go-colorable v0.1.12/go.mod h1:u5H1YNBxpqRaxsYJYSkiCWKzEfiAb1Gb520KVy5xxl4=
@@ -204,8 +207,12 @@ github.com/russross/blackfriday/v2 v2.1.0 h1:JIOH55/0cWyOuilr9/qlrm0BSXldqnqwMsf
 github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
 github.com/sclevine/spec v1.4.0 h1:z/Q9idDcay5m5irkZ28M7PtQM4aOISzOpj4bUPkDee8=
 github.com/sclevine/spec v1.4.0/go.mod h1:LvpgJaFyvQzRvc1kaDs0bulYwzC70PbiYjC4QnFHkOM=
-github.com/shirou/gopsutil/v3 v3.24.5 h1:i0t8kL+kQTvpAYToeuiVk3TgDeKOFioZO3Ztz/iZ9pI=
-github.com/shirou/gopsutil/v3 v3.24.5/go.mod h1:bsoOS1aStSs9ErQ1WWfxllSeS1K5D+U30r2NfcubMVk=
+github.com/shirou/gopsutil/v4 v4.24.7 h1:V9UGTK4gQ8HvcnPKf6Zt3XHyQq/peaekfxpJ2HSocJk=
+github.com/shirou/gopsutil/v4 v4.24.7/go.mod h1:0uW/073rP7FYLOkvxolUQM5rMOLTNmRXnFKafpb71rw=
+github.com/shoenig/go-m1cpu v0.1.6 h1:nxdKQNcEB6vzgA2E2bvzKIYRuNj7XNJ4S/aRSwKzFtM=
+github.com/shoenig/go-m1cpu v0.1.6/go.mod h1:1JJMcUBvfNwpq05QDQVAnx3gUHr9IYF7GNg9SUEw2VQ=
+github.com/shoenig/test v0.6.4 h1:kVTaSd7WLz5WZ2IaoM0RSzRsUD+m8wRR+5qvntpn4LU=
+github.com/shoenig/test v0.6.4/go.mod h1:byHiCGXqrVaflBLAMq/srcZIHynQPQgeyvkvXnjqq0k=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=
 github.com/stretchr/objx v0.5.0/go.mod h1:Yh+to48EsGEfYuaHDzXPcE3xhTkx73EhmCGUpEOglKo=
@@ -226,6 +233,10 @@ github.com/syndtr/goleveldb v1.0.1-0.20220721030215-126854af5e6d h1:vfofYNRScrDd
 github.com/syndtr/goleveldb v1.0.1-0.20220721030215-126854af5e6d/go.mod h1:RRCYJbIwD5jmqPI9XoAFR0OcDxqUctll6zUj/+B4S48=
 github.com/thejerf/suture/v4 v4.0.5 h1:F1E/4FZwXWqvlWDKEUo6/ndLtxGAUzMmNqkrMknZbAA=
 github.com/thejerf/suture/v4 v4.0.5/go.mod h1:gu9Y4dXNUWFrByqRt30Rm9/UZ0wzRSt9AJS6xu/ZGxU=
+github.com/tklauser/go-sysconf v0.3.12 h1:0QaGUFOdQaIVdPgfITYzaTegZvdCjmYO52cSFAEVmqU=
+github.com/tklauser/go-sysconf v0.3.12/go.mod h1:Ho14jnntGE1fpdOqQEEaiKRpvIavV0hSfmBq8nJbHYI=
+github.com/tklauser/numcpus v0.6.1 h1:ng9scYS7az0Bk4OZLvrNXNSAO2Pxr1XXRAPyjhIx+Fk=
+github.com/tklauser/numcpus v0.6.1/go.mod h1:1XfjsgE2zo8GVw7POkMbHENHzVg3GzmoZ9fESEdAacY=
 github.com/urfave/cli v1.20.0/go.mod h1:70zkFmudgCuE/ngEzBv17Jvp/497gISqfk5gWijbERA=
 github.com/urfave/cli v1.22.15 h1:nuqt+pdC/KqswQKhETJjo7pvn/k4xMUxgW6liI7XpnM=
 github.com/urfave/cli v1.22.15/go.mod h1:wSan1hmo5zeyLGBjRJbzRTNk8gwoYa2B9n4q9dmRIc0=
@@ -315,6 +326,7 @@ golang.org/x/sys v0.0.0-20220908164124-27713097b956/go.mod h1:oPkhp1MJrh7nUepCBc
 golang.org/x/sys v0.1.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.8.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.11.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.17.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/sys v0.18.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/sys v0.24.0 h1:Twjiwq9dn6R1fQcyiK+wQyHWfaz/BJB+YIpzU/Cv3Xg=
diff --git a/lib/config/folderconfiguration.go b/lib/config/folderconfiguration.go
index 8765fc4e4e..97c1f3d8b7 100644
--- a/lib/config/folderconfiguration.go
+++ b/lib/config/folderconfiguration.go
@@ -17,7 +17,7 @@ import (
 	"strings"
 	"time"
 
-	"github.com/shirou/gopsutil/v3/disk"
+	"github.com/shirou/gopsutil/v4/disk"
 
 	"github.com/syncthing/syncthing/lib/build"
 	"github.com/syncthing/syncthing/lib/db"
diff --git a/lib/fs/basicfs.go b/lib/fs/basicfs.go
index 58afc0e279..6a5d58c74e 100644
--- a/lib/fs/basicfs.go
+++ b/lib/fs/basicfs.go
@@ -15,7 +15,7 @@ import (
 	"strings"
 	"time"
 
-	"github.com/shirou/gopsutil/v3/disk"
+	"github.com/shirou/gopsutil/v4/disk"
 	"github.com/syncthing/syncthing/lib/build"
 )
 
diff --git a/lib/upgrade/upgrade_supported.go b/lib/upgrade/upgrade_supported.go
index 35b5f540d4..1c8d7b6484 100644
--- a/lib/upgrade/upgrade_supported.go
+++ b/lib/upgrade/upgrade_supported.go
@@ -28,6 +28,7 @@ import (
 	"strings"
 	"time"
 
+	"github.com/shirou/gopsutil/v4/host"
 	"github.com/syncthing/syncthing/lib/dialer"
 	"github.com/syncthing/syncthing/lib/signature"
 	"golang.org/x/net/http2"
@@ -76,8 +77,12 @@ var insecureHTTP = &http.Client{
 	},
 }
 
+var osVersion string
+
 func init() {
 	_ = http2.ConfigureTransport(insecureHTTP.Transport.(*http.Transport))
+	osVersion, _ = host.KernelVersion()
+	osVersion = strings.TrimSpace(osVersion)
 }
 
 func insecureGet(url, version string) (*http.Response, error) {
@@ -87,6 +92,9 @@ func insecureGet(url, version string) (*http.Response, error) {
 	}
 
 	req.Header.Set("User-Agent", fmt.Sprintf(`syncthing %s (%s %s-%s)`, version, runtime.Version(), runtime.GOOS, runtime.GOARCH))
+	if osVersion != "" {
+		req.Header.Set("Syncthing-Os-Version", osVersion)
+	}
 	return insecureHTTP.Do(req)
 }
 
@@ -118,9 +126,11 @@ type SortByRelease []Release
 func (s SortByRelease) Len() int {
 	return len(s)
 }
+
 func (s SortByRelease) Swap(i, j int) {
 	s[i], s[j] = s[j], s[i]
 }
+
 func (s SortByRelease) Less(i, j int) bool {
 	return CompareVersions(s[i].Tag, s[j].Tag) > 0
 }
@@ -428,7 +438,7 @@ func writeBinary(dir string, inFile io.Reader) (filename string, err error) {
 		return "", err
 	}
 
-	err = os.Chmod(outFile.Name(), os.FileMode(0755))
+	err = os.Chmod(outFile.Name(), os.FileMode(0o755))
 	if err != nil {
 		os.Remove(outFile.Name())
 		return "", err