X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=lib%2Fvserver.h;fp=lib%2Fvserver.h;h=284f4a46b1f82e9ecdd5eb6fb93f79bd874b8814;hb=06e1018272502e1d15d6d8f32b80fa96420785b8;hp=0000000000000000000000000000000000000000;hpb=8a59994861a17eb92c11553d88631757ee8e63c3;p=util-vserver.git diff --git a/lib/vserver.h b/lib/vserver.h new file mode 100644 index 0000000..284f4a4 --- /dev/null +++ b/lib/vserver.h @@ -0,0 +1,97 @@ +/* $Id: vserver.h,v 1.1.4.11 2004/01/26 18:19:41 ensc Exp $ + +* Copyright (C) 2003 Enrico Scholz +* +* This program is free software; you can redistribute it and/or modify +* it under the terms of the GNU General Public License as published by +* the Free Software Foundation; either version 2, or (at your option) +* any later version. +* +* This program is distributed in the hope that it will be useful, +* but WITHOUT ANY WARRANTY; without even the implied warranty of +* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +* GNU General Public License for more details. +* +* You should have received a copy of the GNU General Public License +* along with this program; if not, write to the Free Software +* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + +#ifndef H_VSERVER_SYSCALL_H +#define H_VSERVER_SYSCALL_H + +#include +#include +#include + +/** the value which is returned in error-case (no ctx found) */ +#define VC_NOCTX ((xid_t)(-1)) +/** the value which means a random (the next free) ctx */ +#define VC_RANDCTX ((xid_t)(-1)) +/** the value which means the current ctx */ +#define VC_SAMECTX ((xid_t)(-2)) + +#define VC_LIM_INFINITY (~0ULL) +#define VC_LIM_KEEP (~1ULL) + +#ifdef __cplusplus +extern "C" { +#endif + + struct vc_ip_mask_pair { + uint32_t ip; + uint32_t mask; + }; + + /** Returns version of the current kernel API */ + int vc_get_version(); + + /** Puts current process into context , removes the given caps and + * sets flags. + * Special values for ctx are + * - VC_SAMECTX which means the current context (just for changing caps and flags) + * - VC_RANDCTX which means the next free context; this value can be used by + * ordinary users also */ + int vc_new_s_context(xid_t ctx, unsigned int remove_cap, unsigned int flags); + + /** Sets the ipv4root information. + * \precondition: nb<16 */ + int vc_set_ipv4root(uint32_t bcast, size_t nb, struct vc_ip_mask_pair const *ips); + + + /* rlimit related functions */ + typedef uint64_t vc_limit_t; + + + struct vc_rlimit + { + vc_limit_t min; + vc_limit_t soft; + vc_limit_t hard; + }; + + struct vc_rlimit_mask { + uint32_t min; + uint32_t soft; + uint32_t hard; + }; + + int vc_get_rlimit(xid_t ctx, int resource, struct vc_rlimit *lim); + int vc_set_rlimit(xid_t ctx, int resource, struct vc_rlimit const *lim); + int vc_get_rlimit_mask(xid_t ctx, struct vc_rlimit_mask *lim); + + + /** sends a signal to a context/pid + Special values for pid are: + * -1 which means every process in ctx except the init-process + * 0 which means every process in ctx inclusive the init-process */ + int vc_ctx_kill(xid_t ctx, pid_t pid, int sig); + + /** Returns the context of the given process. pid==0 means the current process. */ + xid_t vc_X_getctx(pid_t pid); + +#ifdef __cplusplus +} +#endif + +#endif