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72 lines
2.1 KiB
C
72 lines
2.1 KiB
C
/** Linux kernel related functions.
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*
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* @file
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* @author Steffen Vogel <stvogel@eonerc.rwth-aachen.de>
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* @copyright 2014-2016, Institute for Automation of Complex Power Systems, EONERC
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* This file is part of VILLASnode. All Rights Reserved. Proprietary and confidential.
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* Unauthorized copying of this file, via any medium is strictly prohibited.
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*********************************************************************************/
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#ifndef _LINUX_H_
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#define _LINUX_H_
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#include <stdint.h>
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//#include <sys/capability.h>
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/** Check if current process has capability \p cap.
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*
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* @retval 0 If capabilty is present.
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* @retval <0 If capability is not present.
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*/
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//int kernel_check_cap(cap_value_t cap):
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/** Checks for realtime (PREEMPT_RT) patched kernel.
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*
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* See https://rt.wiki.kernel.org
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*
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* @retval 0 Kernel is patched.
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* @reval <>0 Kernel is not patched.
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*/
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int kernel_is_rt();
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/** Get kernel cmdline parameter
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*
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* See https://www.kernel.org/doc/Documentation/kernel-parameters.txt
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*
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* @param param The cmdline parameter to look for.
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* @param buf The string buffer to which the parameter value will be copied to.
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* @param len The length of the buffer \p value
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* @retval 0 Parameter \p key was found and value was copied to \p value
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* @reval <>0 Kernel was not booted with parameter \p key
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*/
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int kernel_get_cmdline_param(const char *param, char *buf, size_t len);
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/** Check if kernel is version is sufficient
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*
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* @retval 0 Kernel version is sufficient.
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* @reval <>0 Kernel version is not sufficient.
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*/
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int kernel_has_version(int maj, int min);
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/** Checks if a kernel module is loaded
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*
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* @param module the name of the module
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* @retval 0 Module is loaded.
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* @reval <>0 Module is not loaded.
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*/
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int kernel_module_loaded(const char *module);
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/** Load kernel module via modprobe */
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int kernel_module_load(const char *module);
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/** Set parameter of loaded kernel module */
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int kernel_module_set_param(const char *module, const char *param, const char *value);
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/** Get cacheline size in bytes */
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int kernel_get_cacheline_size();
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/** Set SMP affinity of IRQ */
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int kernel_irq_setaffinity(unsigned irq, uintmax_t new, uintmax_t *old);
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#endif /* _LINUX_H_ */
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