This commit was manufactured by cvs2svn to create branch 'vserver'.

[linux-2.6.git] / kernel / vserver / switch.c

diff --git a/kernel/vserver/switch.c b/kernel/vserver/switch.c
new file mode 100644 (file)
index 0000000..90fee14
--- /dev/null
+++ b/kernel/vserver/switch.c
@@ -0,0 +1,170 @@
+/*
+ *  linux/kernel/vserver/switch.c
+ *
+ *  Virtual Server: Syscall Switch
+ *
+ *  Copyright (C) 2003-2004  Herbert Pötzl
+ *
+ *  V0.01  syscall switch
+ *  V0.02  added signal to context
+ *  V0.03  added rlimit functions
+ *  V0.04  added iattr, task/xid functions
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/linkage.h>
+#include <asm/errno.h>
+
+#include <linux/vserver/switch.h>
+#include <linux/vinline.h>
+
+
+static inline int
+vc_get_version(uint32_t id)
+{
+       return VCI_VERSION;
+}
+
+
+#include <linux/vserver/legacy.h>
+#include <linux/vserver/context.h>
+#include <linux/vserver/network.h>
+#include <linux/vserver/namespace.h>
+#include <linux/vserver/sched.h>
+#include <linux/vserver/limit.h>
+#include <linux/vserver/inode.h>
+#include <linux/vserver/signal.h>
+
+
+extern unsigned int vx_debug_switch;
+
+
+extern asmlinkage long
+sys_vserver(uint32_t cmd, uint32_t id, void __user *data)
+{
+
+       if (vx_debug_switch)
+               printk( "vc: VCMD_%02d_%d[%d], %d\n",
+                       VC_CATEGORY(cmd), VC_COMMAND(cmd),
+                       VC_VERSION(cmd), id);
+
+       switch (cmd) {
+       case VCMD_get_version:
+               return vc_get_version(id);
+
+#ifdef CONFIG_VSERVER_LEGACY           
+       case VCMD_new_s_context:
+               return vc_new_s_context(id, data);
+       case VCMD_set_ipv4root:
+               return vc_set_ipv4root(id, data);
+#endif
+
+       case VCMD_task_xid:
+               return vc_task_xid(id, data);
+       case VCMD_vx_info:
+               return vc_vx_info(id, data);
+
+       case VCMD_task_nid:
+               return vc_task_nid(id, data);
+       case VCMD_nx_info:
+               return vc_nx_info(id, data);
+
+       case VCMD_set_namespace:
+               return vc_set_namespace(id, data);
+       case VCMD_cleanup_namespace:
+               return vc_cleanup_namespace(id, data);
+       }
+
+       /* those are allowed while in setup too */
+       if (!vx_check(0, VX_ADMIN|VX_WATCH) &&
+               !vx_flags(VXF_STATE_SETUP,0))
+               return -EPERM;
+
+#ifdef CONFIG_VSERVER_LEGACY
+       switch (cmd) {
+       case VCMD_set_cflags:
+       case VCMD_set_ccaps:
+               if (vx_check(0, VX_WATCH))
+                       return 0;
+       }
+#endif
+
+       switch (cmd) {
+       case VCMD_get_rlimit:
+               return vc_get_rlimit(id, data);
+       case VCMD_set_rlimit:
+               return vc_set_rlimit(id, data);
+       case VCMD_get_rlimit_mask:
+               return vc_get_rlimit_mask(id, data);
+               
+       case VCMD_vx_get_vhi_name:
+               return vc_get_vhi_name(id, data);
+       case VCMD_vx_set_vhi_name:
+               return vc_set_vhi_name(id, data);
+
+       case VCMD_set_cflags:
+               return vc_set_cflags(id, data);
+       case VCMD_get_cflags:
+               return vc_get_cflags(id, data);
+
+       case VCMD_set_ccaps:
+               return vc_set_ccaps(id, data);
+       case VCMD_get_ccaps:
+               return vc_get_ccaps(id, data);
+
+       case VCMD_set_nflags:
+               return vc_set_nflags(id, data);
+       case VCMD_get_nflags:
+               return vc_get_nflags(id, data);
+
+       case VCMD_set_ncaps:
+               return vc_set_ncaps(id, data);
+       case VCMD_get_ncaps:
+               return vc_get_ncaps(id, data);
+
+       case VCMD_set_sched:
+               return vc_set_sched(id, data);
+       }
+
+       /* below here only with VX_ADMIN */
+       if (!vx_check(0, VX_ADMIN|VX_WATCH))
+               return -EPERM;
+
+       switch (cmd) {
+       case VCMD_ctx_kill:
+               return vc_ctx_kill(id, data);
+
+#ifdef CONFIG_VSERVER_LEGACY           
+       case VCMD_create_context:
+               return vc_ctx_create(id, data);
+#endif
+
+       case VCMD_get_iattr:
+               return vc_get_iattr(id, data);
+       case VCMD_set_iattr:
+               return vc_set_iattr(id, data);
+
+       case VCMD_enter_namespace:
+               return vc_enter_namespace(id, data);
+
+       case VCMD_ctx_create:
+#ifdef CONFIG_VSERVER_LEGACY           
+               if (id == 1) {
+                       current->xid = 1;
+                       return 1;
+               }
+#endif
+               return vc_ctx_create(id, data);
+       case VCMD_ctx_migrate:
+               return vc_ctx_migrate(id, data);
+
+       case VCMD_net_create:
+               return vc_net_create(id, data);
+       case VCMD_net_migrate:
+               return vc_net_migrate(id, data);
+
+       }
+       return -ENOSYS;
+}
+