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feat: add packet modification configuration with environment variables

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SunBK201 2025-11-29 16:37:41 +08:00
parent 3f98c35e62
commit b20acf2cbe
3 changed files with 17 additions and 8 deletions
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9
openwrt/files/ua3f.init
View File

@ -32,11 +32,6 @@ start_service() {
config_get_bool set_ipid "main" "set_ipid" 0
config_get_bool del_tcpts "main" "del_tcpts" 0
local others=","
[ "$set_ipid" -eq "1" ] && others="${others}ipid,"
[ "$del_tcpts" -eq "1" ] && others="${others}tcpts,"
[ "$set_ttl" -eq "1" ] && others="${others}ttl,"
procd_open_instance "$NAME"
procd_set_param command "$PROG"
procd_append_param command -m "$server_mode"
@ -47,8 +42,10 @@ start_service() {
procd_append_param command -l "$log_level"
procd_append_param command -x "$rewrite_mode"
procd_append_param command -z "$rewrite_rules"
procd_append_param command -o "$others"
[ "$partial_replace" = "1" ] && procd_append_param command -s
procd_append_param env UA3F_TTL="$set_ttl"
procd_append_param env UA3F_IPID="$set_ipid"
procd_append_param env UA3F_TCPTS="$del_tcpts"
procd_set_param respawn
procd_set_param stdout 1

14
src/internal/config/config.go
View File

@ -4,6 +4,7 @@ import (
"flag"
"fmt"
"log/slog"
"os"
"strings"
)
@ -86,7 +87,18 @@ func Parse() (*Config, bool) {
cfg.ListenAddr = fmt.Sprintf("0.0.0.0:%d", port)
}
// Parse other options
// Parse other options from environment variables
if os.Getenv("UA3F_TCPTS") == "1" {
cfg.DelTCPTimestamp = true
}
if os.Getenv("UA3F_TTL") == "1" {
cfg.SetTTL = true
}
if os.Getenv("UA3F_IPID") == "1" {
cfg.SetIPID = true
}
// Parse other options from -o flag
opts := strings.Split(others, ",")
for _, opt := range opts {
switch strings.ToLower(strings.TrimSpace(opt)) {

2
src/internal/server/netlink/netlink_linux.go
View File

@ -45,8 +45,8 @@ func (s *Server) Start() (err error) {
slog.Error("s.Firewall.Setup", slog.Any("error", err))
return err
}
slog.Info("Packet modification configuration", slog.Bool("ttl", s.cfg.SetTTL), slog.Bool("tcpts", s.cfg.DelTCPTimestamp), slog.Bool("ipid", s.cfg.SetIPID))
if s.cfg.DelTCPTimestamp || s.cfg.SetIPID {
slog.Info("Packet modification features enabled")
return s.nfqServer.Start()
}
return nil