author | Florian Westphal <fw@strlen.de> |
Sun, 11 Jan 2009 20:20:11 +0100 | |
changeset 0 | aa628870c1d3 |
permissions | -rw-r--r-- |
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Port of Linux 2.6.28 for use with network simulation cradle.
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#ifndef _LINUX_IPC_H |
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#define _LINUX_IPC_H |
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#include <linux/types.h> |
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#define IPC_PRIVATE ((__kernel_key_t) 0) |
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/* Obsolete, used only for backwards compatibility and libc5 compiles */ |
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struct ipc_perm |
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{ |
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__kernel_key_t key; |
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__kernel_uid_t uid; |
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__kernel_gid_t gid; |
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__kernel_uid_t cuid; |
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__kernel_gid_t cgid; |
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__kernel_mode_t mode; |
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unsigned short seq; |
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}; |
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/* Include the definition of ipc64_perm */ |
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#include <asm/ipcbuf.h> |
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/* resource get request flags */ |
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#define IPC_CREAT 00001000 /* create if key is nonexistent */ |
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#define IPC_EXCL 00002000 /* fail if key exists */ |
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#define IPC_NOWAIT 00004000 /* return error on wait */ |
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/* these fields are used by the DIPC package so the kernel as standard |
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should avoid using them if possible */ |
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#define IPC_DIPC 00010000 /* make it distributed */ |
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#define IPC_OWN 00020000 /* this machine is the DIPC owner */ |
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/* |
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* Control commands used with semctl, msgctl and shmctl |
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* see also specific commands in sem.h, msg.h and shm.h |
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*/ |
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#define IPC_RMID 0 /* remove resource */ |
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#define IPC_SET 1 /* set ipc_perm options */ |
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#define IPC_STAT 2 /* get ipc_perm options */ |
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#define IPC_INFO 3 /* see ipcs */ |
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/* |
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* Version flags for semctl, msgctl, and shmctl commands |
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* These are passed as bitflags or-ed with the actual command |
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*/ |
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#define IPC_OLD 0 /* Old version (no 32-bit UID support on many |
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architectures) */ |
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#define IPC_64 0x0100 /* New version (support 32-bit UIDs, bigger |
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message sizes, etc. */ |
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/* |
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* These are used to wrap system calls. |
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* |
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* See architecture code for ugly details.. |
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*/ |
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struct ipc_kludge { |
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struct msgbuf __user *msgp; |
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long msgtyp; |
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}; |
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#define SEMOP 1 |
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#define SEMGET 2 |
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#define SEMCTL 3 |
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#define SEMTIMEDOP 4 |
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#define MSGSND 11 |
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#define MSGRCV 12 |
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#define MSGGET 13 |
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#define MSGCTL 14 |
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#define SHMAT 21 |
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#define SHMDT 22 |
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#define SHMGET 23 |
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#define SHMCTL 24 |
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/* Used by the DIPC package, try and avoid reusing it */ |
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#define DIPC 25 |
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#define IPCCALL(version,op) ((version)<<16 | (op)) |
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#ifdef __KERNEL__ |
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#include <linux/kref.h> |
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#include <linux/spinlock.h> |
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#define IPCMNI 32768 /* <= MAX_INT limit for ipc arrays (including sysctl changes) */ |
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/* used by in-kernel data structures */ |
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struct kern_ipc_perm |
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{ |
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spinlock_t lock; |
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int deleted; |
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int id; |
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key_t key; |
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uid_t uid; |
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gid_t gid; |
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uid_t cuid; |
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gid_t cgid; |
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mode_t mode; |
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unsigned long seq; |
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void *security; |
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}; |
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#endif /* __KERNEL__ */ |
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#endif /* _LINUX_IPC_H */ |