From 73ea41302bab5e02c9e86ab15c509494a550f1db Mon Sep 17 00:00:00 2001 From: Kirill Korotaev Date: Mon, 2 Oct 2006 02:18:20 -0700 Subject: [PATCH] IPC namespace - utils This patch adds basic IPC namespace functionality to IPC utils: - init_ipc_ns - copy/clone/unshare/free IPC ns - /proc preparations Signed-off-by: Pavel Emelianov Signed-off-by: Kirill Korotaev Cc: "Eric W. Biederman" Cc: Cedric Le Goater Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- ipc/util.h | 24 +++++++++++++++++++++--- 1 file changed, 21 insertions(+), 3 deletions(-) (limited to 'ipc/util.h') diff --git a/ipc/util.h b/ipc/util.h index 0181553d31d..c8fd6b9d77b 100644 --- a/ipc/util.h +++ b/ipc/util.h @@ -3,6 +3,8 @@ * Copyright (C) 1999 Christoph Rohland * * ipc helper functions (c) 1999 Manfred Spraul + * namespaces support. 2006 OpenVZ, SWsoft Inc. + * Pavel Emelianov */ #ifndef _IPC_UTIL_H @@ -15,6 +17,14 @@ void sem_init (void); void msg_init (void); void shm_init (void); +int sem_init_ns(struct ipc_namespace *ns); +int msg_init_ns(struct ipc_namespace *ns); +int shm_init_ns(struct ipc_namespace *ns); + +void sem_exit_ns(struct ipc_namespace *ns); +void msg_exit_ns(struct ipc_namespace *ns); +void shm_exit_ns(struct ipc_namespace *ns); + struct ipc_id_ary { int size; struct kern_ipc_perm *p[0]; @@ -31,15 +41,23 @@ struct ipc_ids { }; struct seq_file; -void __init ipc_init_ids(struct ipc_ids* ids, int size); +#ifdef CONFIG_IPC_NS +#define __ipc_init +#else +#define __ipc_init __init +#endif +void __ipc_init ipc_init_ids(struct ipc_ids *ids, int size); #ifdef CONFIG_PROC_FS void __init ipc_init_proc_interface(const char *path, const char *header, - struct ipc_ids *ids, - int (*show)(struct seq_file *, void *)); + int ids, int (*show)(struct seq_file *, void *)); #else #define ipc_init_proc_interface(path, header, ids, show) do {} while (0) #endif +#define IPC_SEM_IDS 0 +#define IPC_MSG_IDS 1 +#define IPC_SHM_IDS 2 + /* must be called with ids->mutex acquired.*/ int ipc_findkey(struct ipc_ids* ids, key_t key); int ipc_addid(struct ipc_ids* ids, struct kern_ipc_perm* new, int size); -- cgit v1.2.3