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)
31 #ifdef CONFIG_VSERVER_LEGACY_VERSION
33 return VCI_LEGACY_VERSION;
38 #include <linux/vserver/context_cmd.h>
39 #include <linux/vserver/cvirt_cmd.h>
40 #include <linux/vserver/limit_cmd.h>
41 #include <linux/vserver/network_cmd.h>
42 #include <linux/vserver/sched_cmd.h>
43 #include <linux/vserver/debug_cmd.h>
44 #include <linux/vserver/inode_cmd.h>
45 #include <linux/vserver/dlimit_cmd.h>
46 #include <linux/vserver/signal_cmd.h>
47 #include <linux/vserver/namespace_cmd.h>
49 #include <linux/vserver/legacy.h>
50 #include <linux/vserver/inode.h>
51 #include <linux/vserver/dlimit.h>
55 #define __COMPAT(name, id, data, compat) \
56 (compat) ? name ## _x32 (id, data) : name (id, data)
58 #define __COMPAT(name, id, data, compat) \
64 long do_vserver(uint32_t cmd, uint32_t id, void __user *data, int compat)
66 vxdprintk(VXD_CBIT(switch, 0),
67 "vc: VCMD_%02d_%d[%d], %d,%p,%d",
68 VC_CATEGORY(cmd), VC_COMMAND(cmd),
69 VC_VERSION(cmd), id, data, compat);
71 #ifdef CONFIG_VSERVER_LEGACY
72 if (!capable(CAP_CONTEXT) &&
73 /* dirty hack for capremove */
74 !(cmd==VCMD_new_s_context && id==-2))
77 if (!capable(CAP_CONTEXT))
82 case VCMD_get_version:
83 return vc_get_version(id);
85 case VCMD_dump_history:
86 #ifdef CONFIG_VSERVER_HISTORY
87 return vc_dump_history(id);
92 #ifdef CONFIG_VSERVER_LEGACY
93 case VCMD_new_s_context:
94 return vc_new_s_context(id, data);
96 #ifdef CONFIG_VSERVER_LEGACYNET
97 case VCMD_set_ipv4root:
98 return vc_set_ipv4root(id, data);
102 return vc_task_xid(id, data);
104 return vc_vx_info(id, data);
107 return vc_task_nid(id, data);
109 return vc_nx_info(id, data);
111 case VCMD_set_namespace:
112 return vc_set_namespace(id, data);
113 case VCMD_cleanup_namespace:
114 return vc_cleanup_namespace(id, data);
117 /* those are allowed while in setup too */
118 if (!vx_check(0, VX_ADMIN|VX_WATCH) &&
119 !vx_flags(VXF_STATE_SETUP,0))
122 #ifdef CONFIG_VSERVER_LEGACY
124 case VCMD_set_cflags:
126 if (vx_check(0, VX_WATCH))
132 case VCMD_get_rlimit:
133 return vc_get_rlimit(id, data);
134 case VCMD_set_rlimit:
135 return vc_set_rlimit(id, data);
136 case VCMD_get_rlimit_mask:
137 return vc_get_rlimit_mask(id, data);
139 case VCMD_get_vhi_name:
140 return vc_get_vhi_name(id, data);
141 case VCMD_set_vhi_name:
142 return vc_set_vhi_name(id, data);
144 case VCMD_set_cflags:
145 return vc_set_cflags(id, data);
146 case VCMD_get_cflags:
147 return vc_get_cflags(id, data);
150 return vc_set_ccaps(id, data);
152 return vc_get_ccaps(id, data);
154 case VCMD_set_nflags:
155 return vc_set_nflags(id, data);
156 case VCMD_get_nflags:
157 return vc_get_nflags(id, data);
160 return vc_set_ncaps(id, data);
162 return vc_get_ncaps(id, data);
164 case VCMD_set_sched_v2:
165 return vc_set_sched_v2(id, data);
166 /* this is version 3 */
168 return vc_set_sched(id, data);
170 case VCMD_add_dlimit:
171 return __COMPAT(vc_add_dlimit, id, data, compat);
172 case VCMD_rem_dlimit:
173 return __COMPAT(vc_rem_dlimit, id, data, compat);
174 case VCMD_set_dlimit:
175 return __COMPAT(vc_set_dlimit, id, data, compat);
176 case VCMD_get_dlimit:
177 return __COMPAT(vc_get_dlimit, id, data, compat);
180 /* below here only with VX_ADMIN */
181 if (!vx_check(0, VX_ADMIN|VX_WATCH))
186 return vc_ctx_kill(id, data);
189 return vc_wait_exit(id, data);
191 case VCMD_create_context:
192 #ifdef CONFIG_VSERVER_LEGACY
193 return vc_ctx_create(id, NULL);
199 return __COMPAT(vc_get_iattr, id, data, compat);
201 return __COMPAT(vc_set_iattr, id, data, compat);
203 case VCMD_enter_namespace:
204 return vc_enter_namespace(id, data);
206 case VCMD_ctx_create_v0:
207 #ifdef CONFIG_VSERVER_LEGACY
213 return vc_ctx_create(id, NULL);
214 case VCMD_ctx_create:
215 return vc_ctx_create(id, data);
216 case VCMD_ctx_migrate:
217 return vc_ctx_migrate(id, data);
219 case VCMD_net_create_v0:
220 return vc_net_create(id, NULL);
221 case VCMD_net_create:
222 return vc_net_create(id, data);
223 case VCMD_net_migrate:
224 return vc_net_migrate(id, data);
226 return vc_net_add(id, data);
227 case VCMD_net_remove:
228 return vc_net_remove(id, data);
234 extern asmlinkage long
235 sys_vserver(uint32_t cmd, uint32_t id, void __user *data)
237 long ret = do_vserver(cmd, id, data, 0);
239 vxdprintk(VXD_CBIT(switch, 1),
240 "vc: VCMD_%02d_%d[%d] = %08lx(%ld)",
241 VC_CATEGORY(cmd), VC_COMMAND(cmd),
242 VC_VERSION(cmd), ret, ret);
248 extern asmlinkage long
249 sys32_vserver(uint32_t cmd, uint32_t id, void __user *data)
251 long ret = do_vserver(cmd, id, data, 1);
253 vxdprintk(VXD_CBIT(switch, 1),
254 "vc: VCMD_%02d_%d[%d] = %08lx(%ld)",
255 VC_CATEGORY(cmd), VC_COMMAND(cmd),
256 VC_VERSION(cmd), ret, ret);
260 #endif /* CONFIG_COMPAT */