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// SPDX-License-Identifier: GPL-3.0-or-later
//go:build linux
// +build linux
package logind
import (
"strings"
)
func (l *Logind) collect() (map[string]int64, error) {
if l.conn == nil {
conn, err := l.newLogindConn(l.Config)
if err != nil {
return nil, err
}
l.conn = conn
}
mx := make(map[string]int64)
// https://www.freedesktop.org/wiki/Software/systemd/logind/ (Session Objects)
if err := l.collectSessions(mx); err != nil {
return nil, err
}
// https://www.freedesktop.org/wiki/Software/systemd/logind/ (User Objects)
if err := l.collectUsers(mx); err != nil {
return nil, err
}
return mx, nil
}
func (l *Logind) collectSessions(mx map[string]int64) error {
sessions, err := l.conn.ListSessions()
if err != nil {
return err
}
mx["sessions_remote"] = 0
mx["sessions_local"] = 0
mx["sessions_type_graphical"] = 0
mx["sessions_type_console"] = 0
mx["sessions_type_other"] = 0
mx["sessions_state_online"] = 0
mx["sessions_state_active"] = 0
mx["sessions_state_closing"] = 0
for _, session := range sessions {
props, err := l.conn.GetSessionProperties(session.Path)
if err != nil {
return err
}
if v, ok := props["Remote"]; ok && v.String() == "true" {
mx["sessions_remote"]++
} else {
mx["sessions_local"]++
}
if v, ok := props["Type"]; ok {
typ := strings.Trim(v.String(), "\"")
switch typ {
case "x11", "mir", "wayland":
mx["sessions_type_graphical"]++
case "tty":
mx["sessions_type_console"]++
case "unspecified":
mx["sessions_type_other"]++
default:
l.Debugf("unknown session type '%s' for session '%s/%s'", typ, session.User, session.ID)
mx["sessions_type_other"]++
}
}
if v, ok := props["State"]; ok {
state := strings.Trim(v.String(), "\"")
switch state {
case "online":
mx["sessions_state_online"]++
case "active":
mx["sessions_state_active"]++
case "closing":
mx["sessions_state_closing"]++
default:
l.Debugf("unknown session state '%s' for session '%s/%s'", state, session.User, session.ID)
}
}
}
return nil
}
func (l *Logind) collectUsers(mx map[string]int64) error {
users, err := l.conn.ListUsers()
if err != nil {
return err
}
// https://www.freedesktop.org/software/systemd/man/sd_uid_get_state.html
mx["users_state_offline"] = 0
mx["users_state_lingering"] = 0
mx["users_state_online"] = 0
mx["users_state_active"] = 0
mx["users_state_closing"] = 0
for _, user := range users {
v, err := l.conn.GetUserProperty(user.Path, "State")
if err != nil {
return err
}
state := strings.Trim(v.String(), "\"")
switch state {
case "offline":
mx["users_state_offline"]++
case "lingering":
mx["users_state_lingering"]++
case "online":
mx["users_state_online"]++
case "active":
mx["users_state_active"]++
case "closing":
mx["users_state_closing"]++
default:
l.Debugf("unknown user state '%s' for user '%s/%d'", state, user.Name, user.UID)
}
}
return nil
}
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