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/linkage.h>
18 #include <linux/sched.h>
19 #include <linux/compat.h>
20 #include <asm/errno.h>
22 #include <linux/vserver/network.h>
23 #include <linux/vserver/switch.h>
24 #include <linux/vserver/debug.h>
28 int vc_get_version(uint32_t id)
30 #ifdef CONFIG_VSERVER_LEGACY_VERSION
32 return VCI_LEGACY_VERSION;
37 #include <linux/vserver/context_cmd.h>
38 #include <linux/vserver/cvirt_cmd.h>
39 #include <linux/vserver/limit_cmd.h>
40 #include <linux/vserver/network_cmd.h>
41 #include <linux/vserver/sched_cmd.h>
42 #include <linux/vserver/debug_cmd.h>
43 #include <linux/vserver/inode_cmd.h>
44 #include <linux/vserver/dlimit_cmd.h>
45 #include <linux/vserver/signal_cmd.h>
46 #include <linux/vserver/namespace_cmd.h>
48 #include <linux/vserver/legacy.h>
49 #include <linux/vserver/inode.h>
50 #include <linux/vserver/dlimit.h>
54 #define __COMPAT(name, id, data, compat) \
55 (compat) ? name ## _x32 (id, data) : name (id, data)
57 #define __COMPAT(name, id, data, compat) \
63 long do_vserver(uint32_t cmd, uint32_t id, void __user *data, int compat)
65 vxdprintk(VXD_CBIT(switch, 0),
66 "vc: VCMD_%02d_%d[%d], %d,%p,%d",
67 VC_CATEGORY(cmd), VC_COMMAND(cmd),
68 VC_VERSION(cmd), id, data, compat);
70 #ifdef CONFIG_VSERVER_LEGACY
71 if (!capable(CAP_CONTEXT) &&
72 /* dirty hack for capremove */
73 !(cmd==VCMD_new_s_context && id==-2))
76 if (!capable(CAP_CONTEXT))
81 case VCMD_get_version:
82 return vc_get_version(id);
84 case VCMD_dump_history:
85 #ifdef CONFIG_VSERVER_HISTORY
86 return vc_dump_history(id);
91 #ifdef CONFIG_VSERVER_LEGACY
92 case VCMD_new_s_context:
93 return vc_new_s_context(id, data);
95 #ifdef CONFIG_VSERVER_LEGACYNET
96 case VCMD_set_ipv4root:
97 return vc_set_ipv4root(id, data);
101 return vc_task_xid(id, data);
103 return vc_vx_info(id, data);
106 return vc_task_nid(id, data);
108 return vc_nx_info(id, data);
110 case VCMD_set_namespace_v0:
111 return vc_set_namespace(-1, data);
112 case VCMD_set_namespace:
113 return vc_set_namespace(id, data);
116 /* those are allowed while in setup too */
117 if (!vx_check(0, VX_ADMIN|VX_WATCH) &&
118 !vx_flags(VXF_STATE_SETUP,0))
121 #ifdef CONFIG_VSERVER_LEGACY
123 case VCMD_set_cflags:
125 if (vx_check(0, VX_WATCH))
131 #ifdef CONFIG_IA32_EMULATION
132 case VCMD_get_rlimit:
133 return __COMPAT(vc_get_rlimit, id, data, compat);
134 case VCMD_set_rlimit:
135 return __COMPAT(vc_set_rlimit, id, data, compat);
137 case VCMD_get_rlimit:
138 return vc_get_rlimit(id, data);
139 case VCMD_set_rlimit:
140 return vc_set_rlimit(id, data);
142 case VCMD_get_rlimit_mask:
143 return vc_get_rlimit_mask(id, data);
145 case VCMD_get_vhi_name:
146 return vc_get_vhi_name(id, data);
147 case VCMD_set_vhi_name:
148 return vc_set_vhi_name(id, data);
150 case VCMD_set_cflags:
151 return vc_set_cflags(id, data);
152 case VCMD_get_cflags:
153 return vc_get_cflags(id, data);
156 return vc_set_ccaps(id, data);
158 return vc_get_ccaps(id, data);
160 case VCMD_set_nflags:
161 return vc_set_nflags(id, data);
162 case VCMD_get_nflags:
163 return vc_get_nflags(id, data);
166 return vc_set_ncaps(id, data);
168 return vc_get_ncaps(id, data);
170 case VCMD_set_sched_v2:
171 return vc_set_sched_v2(id, data);
172 /* this is version 3 */
174 return vc_set_sched(id, data);
176 case VCMD_add_dlimit:
177 return __COMPAT(vc_add_dlimit, id, data, compat);
178 case VCMD_rem_dlimit:
179 return __COMPAT(vc_rem_dlimit, id, data, compat);
180 case VCMD_set_dlimit:
181 return __COMPAT(vc_set_dlimit, id, data, compat);
182 case VCMD_get_dlimit:
183 return __COMPAT(vc_get_dlimit, id, data, compat);
186 /* below here only with VX_ADMIN */
187 if (!vx_check(0, VX_ADMIN|VX_WATCH))
192 return vc_ctx_kill(id, data);
195 return vc_wait_exit(id, data);
197 case VCMD_create_context:
198 #ifdef CONFIG_VSERVER_LEGACY
199 return vc_ctx_create(id, NULL);
205 return __COMPAT(vc_get_iattr, id, data, compat);
207 return __COMPAT(vc_set_iattr, id, data, compat);
209 case VCMD_enter_namespace:
210 return vc_enter_namespace(id, data);
212 case VCMD_ctx_create_v0:
213 #ifdef CONFIG_VSERVER_LEGACY
219 return vc_ctx_create(id, NULL);
220 case VCMD_ctx_create:
221 return vc_ctx_create(id, data);
222 case VCMD_ctx_migrate_v0:
223 return vc_ctx_migrate(id, NULL);
224 case VCMD_ctx_migrate:
225 return vc_ctx_migrate(id, data);
227 case VCMD_net_create_v0:
228 return vc_net_create(id, NULL);
229 case VCMD_net_create:
230 return vc_net_create(id, data);
231 case VCMD_net_migrate:
232 return vc_net_migrate(id, data);
234 return vc_net_add(id, data);
235 case VCMD_net_remove:
236 return vc_net_remove(id, data);
243 sys_vserver(uint32_t cmd, uint32_t id, void __user *data)
245 long ret = do_vserver(cmd, id, data, 0);
247 vxdprintk(VXD_CBIT(switch, 1),
248 "vc: VCMD_%02d_%d[%d] = %08lx(%ld)",
249 VC_CATEGORY(cmd), VC_COMMAND(cmd),
250 VC_VERSION(cmd), ret, ret);
257 sys32_vserver(uint32_t cmd, uint32_t id, void __user *data)
259 long ret = do_vserver(cmd, id, data, 1);
261 vxdprintk(VXD_CBIT(switch, 1),
262 "vc: VCMD_%02d_%d[%d] = %08lx(%ld)",
263 VC_CATEGORY(cmd), VC_COMMAND(cmd),
264 VC_VERSION(cmd), ret, ret);
268 #endif /* CONFIG_COMPAT */