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package app
import (
"git.ophivana.moe/security/fortify/dbus"
"git.ophivana.moe/security/fortify/helper/bwrap"
"git.ophivana.moe/security/fortify/internal/linux"
"git.ophivana.moe/security/fortify/internal/system"
)
// appSealSys encapsulates app seal behaviour with OS interactions
type appSealSys struct {
bwrap *bwrap.Config
// paths to override by mounting tmpfs over them
override []string
// default formatted XDG_RUNTIME_DIR of User
runtime string
// target user sealed from config
user appUser
// mapped uid and gid in user namespace
mappedID int
// string representation of mappedID
mappedIDString string
needRevert bool
saveState bool
*system.I
// protected by upstream mutex
}
type appUser struct {
// full uid resolved by fsu
uid int
// string representation of uid
us string
// supplementary group ids
supp []string
// application id
aid int
// string representation of aid
as string
// home directory host path
data string
// app user home directory
home string
// passwd database username
username string
}
// shareAll calls all share methods in sequence
func (seal *appSeal) shareAll(bus [2]*dbus.Config, os linux.System) error {
if seal.shared {
panic("seal shared twice")
}
seal.shared = true
seal.shareSystem()
seal.shareRuntime()
seal.sharePasswd(os)
if err := seal.shareDisplay(os); err != nil {
return err
}
if err := seal.sharePulse(os); err != nil {
return err
}
// ensure dbus session bus defaults
if bus[0] == nil {
bus[0] = dbus.NewConfig(seal.fid, true, true)
}
if err := seal.shareDBus(bus); err != nil {
return err
}
// queue overriding tmpfs at the end of seal.sys.bwrap.Filesystem
for _, dest := range seal.sys.override {
seal.sys.bwrap.Tmpfs(dest, 8*1024)
}
return nil
}
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