fortify/main.go
Ophestra Umiker f320dfc2ee
fortify: set SUID_DUMP_DISABLE after flag parse
Signed-off-by: Ophestra Umiker <cat@ophivana.moe>
2024-10-13 00:09:14 +09:00

69 lines
1.4 KiB
Go

package main
import (
"flag"
"fmt"
"os"
"syscall"
"git.ophivana.moe/cat/fortify/internal"
"git.ophivana.moe/cat/fortify/internal/app"
"git.ophivana.moe/cat/fortify/internal/shim"
"git.ophivana.moe/cat/fortify/internal/verbose"
)
var (
flagVerbose bool
)
func init() {
flag.BoolVar(&flagVerbose, "v", false, "Verbose output")
}
func main() {
flag.Parse()
verbose.Set(flagVerbose)
// linux/sched/coredump.h
if _, _, errno := syscall.RawSyscall(syscall.SYS_PRCTL, syscall.PR_SET_DUMPABLE, 0, 0); errno != 0 {
fmt.Printf("fortify: cannot set SUID_DUMP_DISABLE: %s", errno.Error())
} else {
verbose.Println("prctl(PR_SET_DUMPABLE, SUID_DUMP_DISABLE) succeeded")
}
if internal.SdBootedV {
verbose.Println("system booted with systemd as init system")
}
// launcher payload early exit
if printVersion && printLicense {
shim.Try()
}
// version/license/template command early exit
tryVersion()
tryLicense()
tryTemplate()
// state query command early exit
tryState()
// invoke app
r := 1
a := app.New()
if err := a.Seal(loadConfig()); err != nil {
logBaseError(err, "fortify: cannot seal app:")
} else if err = a.Start(); err != nil {
logBaseError(err, "fortify: cannot start app:")
} else if r, err = a.Wait(); err != nil {
if r < 1 {
r = 1
}
logWaitError(err)
}
if err := a.WaitErr(); err != nil {
fmt.Println("fortify: inner wait failed:", err)
}
os.Exit(r)
}