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package app
import (
"os/user"
"git.ophivana.moe/cat/fortify/dbus"
"git.ophivana.moe/cat/fortify/helper/bwrap"
"git.ophivana.moe/cat/fortify/internal"
"git.ophivana.moe/cat/fortify/internal/state"
"git.ophivana.moe/cat/fortify/internal/system"
"git.ophivana.moe/cat/fortify/internal/verbose"
)
// appSeal seals the application with child-related information
type appSeal struct {
// application unique identifier
id *appID
// wayland socket path if mediated wayland is enabled
wl string
// wait for wayland client to exit if mediated wayland is enabled,
// (wlDone == nil) determines whether mediated wayland setup is performed
wlDone chan struct{}
// freedesktop application ID
fid string
// argv to start process with in the final confined environment
command []string
// persistent process state store
store state.Store
// uint8 representation of launch method sealed from config
launchOption uint8
// process-specific share directory path
share string
// process-specific share directory path local to XDG_RUNTIME_DIR
shareLocal string
// path to launcher program
toolPath string
// pass-through enablement tracking from config
et system.Enablements
// prevents sharing from happening twice
shared bool
// seal system-level component
sys *appSealSys
// used in various sealing operations
internal.SystemConstants
// protected by upstream mutex
}
// 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
// sealed path to fortify executable, used by shim
executable string
// target user sealed from config
user *user.User
*system.I
// protected by upstream mutex
}
// shareAll calls all share methods in sequence
func (seal *appSeal) shareAll(bus [2]*dbus.Config) error {
if seal.shared {
panic("seal shared twice")
}
seal.shared = true
targetTmpdir := seal.shareTmpdirChild()
verbose.Printf("child tmpdir %q configured\n", targetTmpdir)
seal.shareRuntime()
seal.shareSystem()
if err := seal.shareDisplay(); err != nil {
return err
}
if err := seal.sharePulse(); 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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