1 /* $Id: vserver.h,v 1.1.4.11 2004/01/26 18:19:41 ensc Exp $
3 * Copyright (C) 2003 Enrico Scholz <enrico.scholz@informatik.tu-chemnitz.de>
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2, or (at your option)
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
20 #ifndef H_VSERVER_SYSCALL_H
21 #define H_VSERVER_SYSCALL_H
25 #include <sys/types.h>
27 /** the value which is returned in error-case (no ctx found) */
28 #define VC_NOCTX ((xid_t)(-1))
29 /** the value which means a random (the next free) ctx */
30 #define VC_RANDCTX ((xid_t)(-1))
31 /** the value which means the current ctx */
32 #define VC_SAMECTX ((xid_t)(-2))
34 #define VC_LIM_INFINITY (~0ULL)
35 #define VC_LIM_KEEP (~1ULL)
37 #define VC_VXSM_FILL_RATE 0x0001
38 #define VC_VXSM_INTERVAL 0x0002
39 #define VC_VXSM_TOKENS 0x0010
40 #define VC_VXSM_TOKENS_MIN 0x0020
41 #define VC_VXSM_TOKENS_MAX 0x0040
42 #define VC_VXSM_PRIO_BIAS 0x0100
50 struct vc_ip_mask_pair {
55 /** Returns version of the current kernel API */
58 /** Puts current process into context <ctx>, removes the given caps and
60 * Special values for ctx are
61 * - VC_SAMECTX which means the current context (just for changing caps and flags)
62 * - VC_RANDCTX which means the next free context; this value can be used by
63 * ordinary users also */
64 int vc_new_s_context(xid_t ctx, unsigned int remove_cap, unsigned int flags);
66 /** Sets the ipv4root information.
67 * \precondition: nb<16 */
68 int vc_set_ipv4root(uint32_t bcast, size_t nb, struct vc_ip_mask_pair const *ips);
71 /* rlimit related functions */
72 typedef uint64_t vc_limit_t;
82 struct vc_rlimit_mask {
88 int vc_get_rlimit(xid_t ctx, int resource, struct vc_rlimit *lim);
89 int vc_set_rlimit(xid_t ctx, int resource, struct vc_rlimit const *lim);
90 int vc_get_rlimit_mask(xid_t ctx, struct vc_rlimit_mask *lim);
93 #define VC_CAT_SCHED 14
95 uint_least32_t set_mask;
96 int_least32_t fill_rate;
97 int_least32_t interval;
99 int_least32_t tokens_min;
100 int_least32_t tokens_max;
101 int_least32_t priority_bias;
104 int vc_set_sched(xid_t xid, struct vc_set_sched const *);
106 /** sends a signal to a context/pid
107 Special values for pid are:
108 * -1 which means every process in ctx except the init-process
109 * 0 which means every process in ctx inclusive the init-process */
110 int vc_ctx_kill(xid_t ctx, pid_t pid, int sig);
112 /** Returns the context of the given process. pid==0 means the current process. */
113 xid_t vc_X_getctx(pid_t pid);