X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=kernel%2Fcontext.h;fp=kernel%2Fcontext.h;h=79f90537f8a54374c6e2ef9f1e9a0f07a5ef749f;hb=8cf13bb177d92c93eb73dc8939777150536c2d00;hp=0000000000000000000000000000000000000000;hpb=6bf3f95de36c804c97716b2d0bdf10680c559044;p=util-vserver.git

diff --git a/kernel/context.h b/kernel/context.h
new file mode 100644
index 0000000..79f9053
--- /dev/null
+++ b/kernel/context.h
@@ -0,0 +1,161 @@
+#ifndef _VX_CONTEXT_H
+#define _VX_CONTEXT_H
+
+#include <linux/types.h>
+
+
+#define MAX_S_CONTEXT	65535	/* Arbitrary limit */
+#define MIN_D_CONTEXT	49152	/* dynamic contexts start here */
+
+#define VX_DYNAMIC_ID	((uint32_t)-1)		/* id for dynamic context */
+
+/* context flags */
+
+#define VXF_INFO_LOCK		0x00000001
+#define VXF_INFO_SCHED		0x00000002
+#define VXF_INFO_NPROC		0x00000004
+#define VXF_INFO_PRIVATE	0x00000008
+
+#define VXF_INFO_INIT		0x00000010
+#define VXF_INFO_HIDE		0x00000020
+#define VXF_INFO_ULIMIT		0x00000040
+#define VXF_INFO_NSPACE		0x00000080
+
+#define VXF_SCHED_HARD		0x00000100
+#define VXF_SCHED_PRIO		0x00000200
+#define VXF_SCHED_PAUSE		0x00000400
+
+#define VXF_VIRT_MEM		0x00010000
+#define VXF_VIRT_UPTIME		0x00020000
+#define VXF_VIRT_CPU		0x00040000
+#define VXF_VIRT_LOAD		0x00080000
+
+#define VXF_HIDE_MOUNT		0x01000000
+#define VXF_HIDE_NETIF		0x02000000
+
+#define VXF_STATE_SETUP		(1ULL<<32)
+#define VXF_STATE_INIT		(1ULL<<33)
+
+#define VXF_STATE_HELPER	(1ULL<<36)
+
+#define VXF_FORK_RSS		(1ULL<<48)
+#define VXF_PROLIFIC		(1ULL<<49)
+
+#define VXF_IGNEG_NICE		(1ULL<<52)
+
+#define VXF_ONE_TIME		(0x0003ULL<<32)
+
+#define VXF_INIT_SET		(VXF_STATE_SETUP|VXF_STATE_INIT)
+
+
+/* context caps */
+
+#define	VXC_CAP_MASK		0x00000000
+
+#define VXC_SET_UTSNAME		0x00000001
+#define VXC_SET_RLIMIT		0x00000002
+
+#define VXC_RAW_ICMP		0x00000100
+#define VXC_SYSLOG		0x00001000
+
+#define VXC_SECURE_MOUNT	0x00010000
+#define VXC_SECURE_REMOUNT	0x00020000
+#define VXC_BINARY_MOUNT	0x00040000
+
+#define VXC_QUOTA_CTL		0x00100000
+
+
+/* context state changes */
+
+enum {
+	VSC_STARTUP = 1,
+	VSC_SHUTDOWN,
+
+	VSC_NETUP,
+	VSC_NETDOWN,
+};
+
+
+#ifdef	__KERNEL__
+
+#include <linux/list.h>
+#include <linux/spinlock.h>
+#include <linux/rcupdate.h>
+
+#include "limit_def.h"
+#include "sched_def.h"
+#include "cvirt_def.h"
+
+struct vx_info {
+	struct hlist_node vx_hlist;		/* linked list of contexts */
+	xid_t vx_id;				/* context id */
+	atomic_t vx_usecnt;			/* usage count */
+	atomic_t vx_tasks;			/* tasks count */
+	struct vx_info *vx_parent;		/* parent context */
+	int vx_state;				/* context state */
+
+	struct namespace *vx_namespace;		/* private namespace */
+	struct fs_struct *vx_fs;		/* private namespace fs */
+	uint64_t vx_flags;			/* context flags */
+	uint64_t vx_bcaps;			/* bounding caps (system) */
+	uint64_t vx_ccaps;			/* context caps (vserver) */
+
+	pid_t vx_initpid;			/* PID of fake init process */
+
+	wait_queue_head_t vx_wait;		/* context exit waitqueue */
+
+	struct _vx_limit limit;			/* vserver limits */
+	struct _vx_sched sched;			/* vserver scheduler */
+	struct _vx_cvirt cvirt;			/* virtual/bias stuff */
+	struct _vx_cacct cacct;			/* context accounting */
+
+	char vx_name[65];			/* vserver name */
+};
+
+
+/* status flags */
+
+#define VXS_HASHED	0x0001
+#define VXS_PAUSED	0x0010
+#define VXS_ONHOLD	0x0020
+#define VXS_SHUTDOWN	0x0100
+#define VXS_RELEASED	0x8000
+
+/* check conditions */
+
+#define VX_ADMIN	0x0001
+#define VX_WATCH	0x0002
+#define VX_HIDE		0x0004
+#define VX_HOSTID	0x0008
+
+#define VX_IDENT	0x0010
+#define VX_EQUIV	0x0020
+#define VX_PARENT	0x0040
+#define VX_CHILD	0x0080
+
+#define VX_ARG_MASK	0x00F0
+
+#define VX_DYNAMIC	0x0100
+#define VX_STATIC	0x0200
+
+#define VX_ATR_MASK	0x0F00
+
+
+extern void claim_vx_info(struct vx_info *, struct task_struct *);
+extern void release_vx_info(struct vx_info *, struct task_struct *);
+
+extern struct vx_info *locate_vx_info(int);
+extern struct vx_info *locate_or_create_vx_info(int);
+
+extern int get_xid_list(int, unsigned int *, int);
+extern int xid_is_hashed(xid_t);
+
+extern int vx_migrate_task(struct task_struct *, struct vx_info *);
+
+extern long vs_state_change(struct vx_info *, unsigned int);
+
+
+#endif	/* __KERNEL__ */
+#else	/* _VX_CONTEXT_H */
+#warning duplicate inclusion
+#endif	/* _VX_CONTEXT_H */