4 #include "vserver/context.h"
10 #define vxdprintk(x...) printk("vxd: " x)
12 #define vxdprintk(x...)
16 #define vx_task_xid(t) ((t)->xid)
18 #define vx_current_xid() vx_task_xid(current)
20 #define vx_check(c,m) __vx_check(vx_current_xid(),c,m)
22 #define vx_weak_check(c,m) ((m) ? vx_check(c,m) : 1)
26 * check current context for ADMIN/WATCH and
27 * optionally agains supplied argument
29 static __inline__ int __vx_check(xid_t cid, xid_t id, unsigned int mode)
31 if (mode & VX_ARG_MASK) {
32 if ((mode & VX_IDENT) &&
36 if (mode & VX_ATR_MASK) {
37 if ((mode & VX_DYNAMIC) &&
38 (id >= MIN_D_CONTEXT) &&
39 (id <= MAX_S_CONTEXT))
41 if ((mode & VX_STATIC) &&
42 (id > 1) && (id < MIN_D_CONTEXT))
45 return (((mode & VX_ADMIN) && (cid == 0)) ||
46 ((mode & VX_WATCH) && (cid == 1)));
50 #define __vx_flags(v,m,f) (((v) & (m)) ^ (f))
52 #define __vx_task_flags(t,m,f) \
53 (((t) && ((t)->vx_info)) ? \
54 __vx_flags((t)->vx_info->vx_flags,(m),(f)) : 0)
56 #define vx_current_flags() \
57 ((current->vx_info) ? current->vx_info->vx_flags : 0)
59 #define vx_flags(m,f) __vx_flags(vx_current_flags(),(m),(f))
62 #define vx_current_ccaps() \
63 ((current->vx_info) ? current->vx_info->vx_ccaps : 0)
65 #define vx_ccaps(c) (vx_current_ccaps() & (c))
67 #define vx_current_bcaps() \
68 (((current->vx_info) && !vx_flags(VXF_STATE_SETUP, 0)) ? \
69 current->vx_info->vx_bcaps : cap_bset)
72 /* generic flag merging */
74 #define vx_mask_flags(v,f,m) (((v) & ~(m)) | ((f) & (m)))
76 #define vx_mask_mask(v,f,m) (((v) & ~(m)) | ((v) & (f) & (m)))