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IPC_CHECK_PERMS(9) Kernel IPC facilities IPC_CHECK_PERMS(9)

NAME

ipc_check_perms - check security and permissions for an IPC

SYNOPSIS

int ipc_check_perms(struct ipc_namespace * ns, struct kern_ipc_perm * ipcp, struct ipc_ops * ops, struct ipc_params * params);

ARGUMENTS

ns
IPC namespace
ipcp
ipc permission set
ops
the actual security routine to call
params
its parameters

DESCRIPTION

This routine is called by sys_msgget, sys_semget and sys_shmget when the key is not IPC_PRIVATE and that key already exists in the ids IDR.
On success, the IPC id is returned.
It is called with ipc_ids.rw_mutex and ipcp->lock held.

COPYRIGHT

March 2016 Kernel Hackers Manual 3.2.