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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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d646969055
The rlimit counter is tied to uid in the user_namespace. This allows rlimit values to be specified in userns even if they are already globally exceeded by the user. However, the value of the previous user_namespaces cannot be exceeded. Changelog v11: * Revert most of changes to fix performance issues. v10: * Fix memory leak on get_ucounts failure. Signed-off-by: Alexey Gladkov <legion@kernel.org> Link: https://lkml.kernel.org/r/df9d7764dddd50f28616b7840de74ec0f81711a8.1619094428.git.legion@kernel.org Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
85 lines
1.6 KiB
C
85 lines
1.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _LINUX_SIGNAL_TYPES_H
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#define _LINUX_SIGNAL_TYPES_H
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/*
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* Basic signal handling related data type definitions:
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*/
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#include <linux/list.h>
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#include <uapi/linux/signal.h>
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typedef struct kernel_siginfo {
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__SIGINFO;
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} kernel_siginfo_t;
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struct ucounts;
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/*
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* Real Time signals may be queued.
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*/
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struct sigqueue {
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struct list_head list;
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int flags;
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kernel_siginfo_t info;
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struct ucounts *ucounts;
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};
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/* flags values. */
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#define SIGQUEUE_PREALLOC 1
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struct sigpending {
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struct list_head list;
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sigset_t signal;
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};
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struct sigaction {
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#ifndef __ARCH_HAS_IRIX_SIGACTION
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__sighandler_t sa_handler;
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unsigned long sa_flags;
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#else
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unsigned int sa_flags;
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__sighandler_t sa_handler;
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#endif
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#ifdef __ARCH_HAS_SA_RESTORER
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__sigrestore_t sa_restorer;
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#endif
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sigset_t sa_mask; /* mask last for extensibility */
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};
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struct k_sigaction {
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struct sigaction sa;
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#ifdef __ARCH_HAS_KA_RESTORER
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__sigrestore_t ka_restorer;
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#endif
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};
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#ifdef CONFIG_OLD_SIGACTION
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struct old_sigaction {
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__sighandler_t sa_handler;
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old_sigset_t sa_mask;
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unsigned long sa_flags;
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__sigrestore_t sa_restorer;
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};
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#endif
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struct ksignal {
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struct k_sigaction ka;
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kernel_siginfo_t info;
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int sig;
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};
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#ifndef __ARCH_UAPI_SA_FLAGS
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#ifdef SA_RESTORER
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#define __ARCH_UAPI_SA_FLAGS SA_RESTORER
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#else
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#define __ARCH_UAPI_SA_FLAGS 0
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#endif
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#endif
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#define UAPI_SA_FLAGS \
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(SA_NOCLDSTOP | SA_NOCLDWAIT | SA_SIGINFO | SA_ONSTACK | SA_RESTART | \
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SA_NODEFER | SA_RESETHAND | SA_EXPOSE_TAGBITS | __ARCH_UAPI_SA_FLAGS)
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#endif /* _LINUX_SIGNAL_TYPES_H */
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