2 * linux/kernel/vserver/switch.c
4 * Virtual Server: Syscall Switch
6 * Copyright (C) 2003-2005 Herbert Pƶtzl
9 * V0.02 added signal to context
10 * V0.03 added rlimit functions
11 * V0.04 added iattr, task/xid functions
12 * V0.05 added debug/history stuff
13 * V0.06 added compat32 layer
17 #include <linux/config.h>
18 #include <linux/linkage.h>
19 #include <linux/sched.h>
20 #include <linux/compat.h>
21 #include <asm/errno.h>
23 #include <linux/vserver/network.h>
24 #include <linux/vserver/switch.h>
25 #include <linux/vserver/debug.h>
29 int vc_get_version(uint32_t id)
34 #include <linux/vserver/context_cmd.h>
35 #include <linux/vserver/cvirt_cmd.h>
36 #include <linux/vserver/limit_cmd.h>
37 #include <linux/vserver/network_cmd.h>
38 #include <linux/vserver/sched_cmd.h>
39 #include <linux/vserver/debug_cmd.h>
40 #include <linux/vserver/inode_cmd.h>
41 #include <linux/vserver/dlimit_cmd.h>
42 #include <linux/vserver/signal_cmd.h>
44 #include <linux/vserver/legacy.h>
45 #include <linux/vserver/namespace.h>
46 #include <linux/vserver/inode.h>
47 #include <linux/vserver/dlimit.h>
51 #define __COMPAT(name, id, data, compat) \
52 (compat) ? name ## _x32 (id, data) : name (id, data)
54 #define __COMPAT(name, id, data, compat) \
60 long do_vserver(uint32_t cmd, uint32_t id, void __user *data, int compat)
62 vxdprintk(VXD_CBIT(switch, 0),
63 "vc: VCMD_%02d_%d[%d], %d,%p,%d",
64 VC_CATEGORY(cmd), VC_COMMAND(cmd),
65 VC_VERSION(cmd), id, data, compat);
67 #ifdef CONFIG_VSERVER_LEGACY
68 if (!capable(CAP_CONTEXT) &&
69 /* dirty hack for capremove */
70 !(cmd==VCMD_new_s_context && id==-2))
73 if (!capable(CAP_CONTEXT))
78 case VCMD_get_version:
79 return vc_get_version(id);
81 case VCMD_dump_history:
82 #ifdef CONFIG_VSERVER_HISTORY
83 return vc_dump_history(id);
88 #ifdef CONFIG_VSERVER_LEGACY
89 case VCMD_new_s_context:
90 return vc_new_s_context(id, data);
92 #ifdef CONFIG_VSERVER_LEGACYNET
93 case VCMD_set_ipv4root:
94 return vc_set_ipv4root(id, data);
98 return vc_task_xid(id, data);
100 return vc_vx_info(id, data);
103 return vc_task_nid(id, data);
105 return vc_nx_info(id, data);
107 case VCMD_set_namespace:
108 return vc_set_namespace(id, data);
109 case VCMD_cleanup_namespace:
110 return vc_cleanup_namespace(id, data);
113 /* those are allowed while in setup too */
114 if (!vx_check(0, VX_ADMIN|VX_WATCH) &&
115 !vx_flags(VXF_STATE_SETUP,0))
118 #ifdef CONFIG_VSERVER_LEGACY
120 case VCMD_set_cflags:
122 if (vx_check(0, VX_WATCH))
128 case VCMD_get_rlimit:
129 return vc_get_rlimit(id, data);
130 case VCMD_set_rlimit:
131 return vc_set_rlimit(id, data);
132 case VCMD_get_rlimit_mask:
133 return vc_get_rlimit_mask(id, data);
135 case VCMD_vx_get_vhi_name:
136 return vc_get_vhi_name(id, data);
137 case VCMD_vx_set_vhi_name:
138 return vc_set_vhi_name(id, data);
140 case VCMD_set_cflags:
141 return vc_set_cflags(id, data);
142 case VCMD_get_cflags:
143 return vc_get_cflags(id, data);
146 return vc_set_ccaps(id, data);
148 return vc_get_ccaps(id, data);
150 case VCMD_set_nflags:
151 return vc_set_nflags(id, data);
152 case VCMD_get_nflags:
153 return vc_get_nflags(id, data);
156 return vc_set_ncaps(id, data);
158 return vc_get_ncaps(id, data);
160 case VCMD_set_sched_v2:
161 return vc_set_sched_v2(id, data);
162 /* this is version 3 */
164 return vc_set_sched(id, data);
166 case VCMD_add_dlimit:
167 return __COMPAT(vc_add_dlimit, id, data, compat);
168 case VCMD_rem_dlimit:
169 return __COMPAT(vc_rem_dlimit, id, data, compat);
170 case VCMD_set_dlimit:
171 return __COMPAT(vc_set_dlimit, id, data, compat);
172 case VCMD_get_dlimit:
173 return __COMPAT(vc_get_dlimit, id, data, compat);
176 /* below here only with VX_ADMIN */
177 if (!vx_check(0, VX_ADMIN|VX_WATCH))
182 return vc_ctx_kill(id, data);
185 return vc_wait_exit(id, data);
187 case VCMD_create_context:
188 #ifdef CONFIG_VSERVER_LEGACY
189 return vc_ctx_create(id, data);
195 return __COMPAT(vc_get_iattr, id, data, compat);
197 return __COMPAT(vc_set_iattr, id, data, compat);
199 case VCMD_enter_namespace:
200 return vc_enter_namespace(id, data);
202 case VCMD_ctx_create:
203 #ifdef CONFIG_VSERVER_LEGACY
209 return vc_ctx_create(id, data);
210 case VCMD_ctx_migrate:
211 return vc_ctx_migrate(id, data);
213 case VCMD_net_create:
214 return vc_net_create(id, data);
215 case VCMD_net_migrate:
216 return vc_net_migrate(id, data);
222 extern asmlinkage long
223 sys_vserver(uint32_t cmd, uint32_t id, void __user *data)
225 return do_vserver(cmd, id, data, 0);
230 extern asmlinkage long
231 sys32_vserver(uint32_t cmd, uint32_t id, void __user *data)
233 return do_vserver(cmd, id, data, 1);
236 #endif /* CONFIG_COMPAT */