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2a709f28fa
* 0day explit mitigation * Memory corruption prevention * Privilege escalation prevention * Buffer over flow prevention * File System corruption defense * Thread escape prevention This may very well be the most intensive inclusion to BrooklynR. This will not be part of an x86 suite nor it will be released as tool kit. The security core toolkit will remain part of kernel base.
118 lines
2.9 KiB
C
118 lines
2.9 KiB
C
/*
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* linux/include/kmsg_dump.h
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*
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* Copyright (C) 2009 Net Insight AB
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*
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* Author: Simon Kagstrom <simon.kagstrom@netinsight.net>
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file COPYING in the main directory of this archive
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* for more details.
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*/
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#ifndef _LINUX_KMSG_DUMP_H
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#define _LINUX_KMSG_DUMP_H
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#include <linux/errno.h>
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#include <linux/list.h>
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/*
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* Keep this list arranged in rough order of priority. Anything listed after
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* KMSG_DUMP_OOPS will not be logged by default unless printk.always_kmsg_dump
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* is passed to the kernel.
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*/
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enum kmsg_dump_reason {
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KMSG_DUMP_UNDEF,
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KMSG_DUMP_PANIC,
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KMSG_DUMP_OOPS,
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KMSG_DUMP_EMERG,
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KMSG_DUMP_RESTART,
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KMSG_DUMP_HALT,
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KMSG_DUMP_POWEROFF,
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};
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/**
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* struct kmsg_dumper - kernel crash message dumper structure
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* @list: Entry in the dumper list (private)
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* @dump: Call into dumping code which will retrieve the data with
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* through the record iterator
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* @max_reason: filter for highest reason number that should be dumped
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* @registered: Flag that specifies if this is already registered
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*/
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struct kmsg_dumper {
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struct list_head list;
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void (*dump)(struct kmsg_dumper *dumper, enum kmsg_dump_reason reason);
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enum kmsg_dump_reason max_reason;
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bool active;
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bool registered;
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/* private state of the kmsg iterator */
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u32 cur_idx;
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u32 next_idx;
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u64 cur_seq;
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u64 next_seq;
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};
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#ifdef CONFIG_PRINTK
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void kmsg_dump(enum kmsg_dump_reason reason);
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bool kmsg_dump_get_line_nolock(struct kmsg_dumper *dumper, bool syslog,
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char *line, size_t size, size_t *len);
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bool kmsg_dump_get_line(struct kmsg_dumper *dumper, bool syslog,
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char *line, size_t size, size_t *len);
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bool kmsg_dump_get_buffer(struct kmsg_dumper *dumper, bool syslog,
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char *buf, size_t size, size_t *len);
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void kmsg_dump_rewind_nolock(struct kmsg_dumper *dumper);
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void kmsg_dump_rewind(struct kmsg_dumper *dumper);
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int kmsg_dump_register(struct kmsg_dumper *dumper);
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int kmsg_dump_unregister(struct kmsg_dumper *dumper);
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#else
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static inline void kmsg_dump(enum kmsg_dump_reason reason)
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{
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}
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static inline bool kmsg_dump_get_line_nolock(struct kmsg_dumper *dumper,
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bool syslog, const char *line,
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size_t size, size_t *len)
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{
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return false;
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}
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static inline bool kmsg_dump_get_line(struct kmsg_dumper *dumper, bool syslog,
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const char *line, size_t size, size_t *len)
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{
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return false;
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}
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static inline bool kmsg_dump_get_buffer(struct kmsg_dumper *dumper, bool syslog,
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char *buf, size_t size, size_t *len)
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{
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return false;
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}
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static inline void kmsg_dump_rewind_nolock(struct kmsg_dumper *dumper)
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{
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}
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static inline void kmsg_dump_rewind(struct kmsg_dumper *dumper)
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{
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}
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static inline int kmsg_dump_register(struct kmsg_dumper *dumper)
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{
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return -EINVAL;
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}
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static inline int kmsg_dump_unregister(struct kmsg_dumper *dumper)
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{
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return -EINVAL;
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}
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#endif
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#endif /* _LINUX_KMSG_DUMP_H */
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