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/*
* Copyright (C) 2013-2015 Kay Sievers
* Copyright (C) 2013-2015 Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Copyright (C) 2013-2015 Daniel Mack <daniel@zonque.org>
* Copyright (C) 2013-2015 David Herrmann <dh.herrmann@gmail.com>
* Copyright (C) 2013-2015 Linux Foundation
* Copyright (C) 2014-2015 Djalal Harouni
*
* kdbus is free software; you can redistribute it and/or modify it under
* the terms of the GNU Lesser General Public License as published by the
* Free Software Foundation; either version 2.1 of the License, or (at
* your option) any later version.
*/
#ifndef __KDBUS_METADATA_H
#define __KDBUS_METADATA_H
#include <linux/kernel.h>
#include <linux/kref.h>
#include <linux/path.h>
#include <linux/sched.h>
struct kdbus_conn;
struct kdbus_pool_slice;
struct kdbus_meta_conn;
/**
* struct kdbus_meta_proc - Process metadata
* @kref: Reference counting
* @lock: Object lock
* @collected: Bitmask of collected items
* @valid: Bitmask of collected and valid items
* @cred: Credentials
* @pid: PID of process
* @tgid: TGID of process
* @ppid: PPID of process
* @tid_comm: TID comm line
* @pid_comm: PID comm line
* @exe_path: Executable path
* @root_path: Root-FS path
* @cmdline: Command-line
* @cgroup: Full cgroup path
* @seclabel: Seclabel
* @audit_loginuid: Audit login-UID
* @audit_sessionid: Audit session-ID
*/
struct kdbus_meta_proc {
struct kref kref;
struct mutex lock;
u64 collected;
u64 valid;
/* KDBUS_ITEM_CREDS */
/* KDBUS_ITEM_AUXGROUPS */
/* KDBUS_ITEM_CAPS */
const struct cred *cred;
/* KDBUS_ITEM_PIDS */
struct pid *pid;
struct pid *tgid;
struct pid *ppid;
/* KDBUS_ITEM_TID_COMM */
char tid_comm[TASK_COMM_LEN];
/* KDBUS_ITEM_PID_COMM */
char pid_comm[TASK_COMM_LEN];
/* KDBUS_ITEM_EXE */
struct path exe_path;
struct path root_path;
/* KDBUS_ITEM_CMDLINE */
char *cmdline;
/* KDBUS_ITEM_CGROUP */
char *cgroup;
/* KDBUS_ITEM_SECLABEL */
char *seclabel;
/* KDBUS_ITEM_AUDIT */
kuid_t audit_loginuid;
unsigned int audit_sessionid;
};
/**
* struct kdbus_meta_fake - Fake metadata
* @valid: Bitmask of collected and valid items
* @uid: UID of process
* @euid: EUID of process
* @suid: SUID of process
* @fsuid: FSUID of process
* @gid: GID of process
* @egid: EGID of process
* @sgid: SGID of process
* @fsgid: FSGID of process
* @pid: PID of process
* @tgid: TGID of process
* @ppid: PPID of process
* @seclabel: Seclabel
*/
struct kdbus_meta_fake {
u64 valid;
/* KDBUS_ITEM_CREDS */
kuid_t uid, euid, suid, fsuid;
kgid_t gid, egid, sgid, fsgid;
/* KDBUS_ITEM_PIDS */
struct pid *pid, *tgid, *ppid;
/* KDBUS_ITEM_SECLABEL */
char *seclabel;
};
struct kdbus_meta_proc *kdbus_meta_proc_new(void);
struct kdbus_meta_proc *kdbus_meta_proc_ref(struct kdbus_meta_proc *mp);
struct kdbus_meta_proc *kdbus_meta_proc_unref(struct kdbus_meta_proc *mp);
void kdbus_meta_proc_free(struct kref *mpkref);
int kdbus_meta_proc_collect(struct kdbus_meta_proc *mp, u64 what);
struct kdbus_meta_fake *kdbus_meta_fake_new(void);
struct kdbus_meta_fake *kdbus_meta_fake_free(struct kdbus_meta_fake *mf);
int kdbus_meta_fake_collect(struct kdbus_meta_fake *mf,
const struct kdbus_creds *creds,
const struct kdbus_pids *pids,
const char *seclabel);
struct kdbus_meta_conn *kdbus_meta_conn_new(void);
struct kdbus_meta_conn *kdbus_meta_conn_ref(struct kdbus_meta_conn *mc);
struct kdbus_meta_conn *kdbus_meta_conn_unref(struct kdbus_meta_conn *mc);
int kdbus_meta_conn_collect(struct kdbus_meta_conn *mc,
struct kdbus_conn *conn,
u64 msg_seqnum, u64 what);
int kdbus_meta_emit(struct kdbus_meta_proc *mp,
struct kdbus_meta_fake *mf,
struct kdbus_meta_conn *mc,
struct kdbus_conn *conn,
u64 mask,
struct kdbus_item **out_items,
size_t *out_size);
u64 kdbus_meta_info_mask(const struct kdbus_conn *conn, u64 mask);
u64 kdbus_meta_msg_mask(const struct kdbus_conn *snd,
const struct kdbus_conn *rcv);
#endif
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