ce58519e66
* The coding format is too messy, reformat to improve readability and get closer to Linux kernel coding style. * While at it, update .clang-format file to linux-mainline state.
113 lines
3.8 KiB
C
113 lines
3.8 KiB
C
#include "ksu_trace.h"
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// extern kernelsu functions
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extern bool ksu_execveat_hook __read_mostly;
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extern int ksu_handle_execveat(int *fd, struct filename **filename_ptr,
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void *argv, void *envp, int *flags);
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extern int ksu_handle_execveat_sucompat(int *fd, struct filename **filename_ptr,
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void *argv, void *envp, int *flags);
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extern int ksu_handle_faccessat(int *dfd, const char __user **filename_user,
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int *mode, int *flags);
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extern bool ksu_vfs_read_hook __read_mostly;
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extern int ksu_handle_sys_read(unsigned int fd, char __user **buf_ptr,
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size_t *count_ptr);
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extern int ksu_handle_stat(int *dfd, const char __user **filename_user,
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int *flags);
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extern bool ksu_input_hook __read_mostly;
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extern int ksu_handle_input_handle_event(unsigned int *type, unsigned int *code,
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int *value);
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extern int ksu_handle_devpts(struct inode *);
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// end kernelsu functions
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// tracepoint callback functions
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void ksu_trace_execveat_hook_callback(void *data, int *fd,
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struct filename **filename_ptr,
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void *argv, void *envp, int *flags)
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{
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if (unlikely(ksu_execveat_hook))
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ksu_handle_execveat(fd, filename_ptr, argv, envp, flags);
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else
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ksu_handle_execveat_sucompat(fd, filename_ptr, NULL, NULL,
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NULL);
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}
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void ksu_trace_execveat_sucompat_hook_callback(void *data, int *fd,
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struct filename **filename_ptr,
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void *argv, void *envp,
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int *flags)
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{
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if (!ksu_execveat_hook)
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ksu_handle_execveat_sucompat(fd, filename_ptr, argv, envp,
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flags);
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}
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void ksu_trace_faccessat_hook_callback(void *data, int *dfd,
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const char __user **filename_user,
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int *mode, int *flags)
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{
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ksu_handle_faccessat(dfd, filename_user, mode, flags);
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}
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void ksu_trace_sys_read_hook_callback(void *data, unsigned int fd,
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char __user **buf_ptr, size_t *count_ptr)
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{
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if (unlikely(ksu_vfs_read_hook))
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ksu_handle_sys_read(fd, buf_ptr, count_ptr);
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}
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void ksu_trace_stat_hook_callback(void *data, int *dfd,
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const char __user **filename_user, int *flags)
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{
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ksu_handle_stat(dfd, filename_user, flags);
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}
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void ksu_trace_input_hook_callback(void *data, unsigned int *type,
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unsigned int *code, int *value)
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{
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if (unlikely(ksu_input_hook))
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ksu_handle_input_handle_event(type, code, value);
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}
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void ksu_trace_devpts_hook_callback(void *data, struct inode *inode)
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{
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ksu_handle_devpts(inode);
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}
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// end tracepoint callback functions
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// register tracepoint callback functions
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void ksu_trace_register(void)
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{
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register_trace_ksu_trace_execveat_hook(ksu_trace_execveat_hook_callback,
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NULL);
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register_trace_ksu_trace_execveat_sucompat_hook(
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ksu_trace_execveat_sucompat_hook_callback, NULL);
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register_trace_ksu_trace_faccessat_hook(
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ksu_trace_faccessat_hook_callback, NULL);
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register_trace_ksu_trace_sys_read_hook(ksu_trace_sys_read_hook_callback,
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NULL);
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register_trace_ksu_trace_stat_hook(ksu_trace_stat_hook_callback, NULL);
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register_trace_ksu_trace_input_hook(ksu_trace_input_hook_callback,
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NULL);
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register_trace_ksu_trace_devpts_hook(ksu_trace_devpts_hook_callback,
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NULL);
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}
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// unregister tracepoint callback functions
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void ksu_trace_unregister(void)
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{
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unregister_trace_ksu_trace_execveat_hook(
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ksu_trace_execveat_hook_callback, NULL);
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unregister_trace_ksu_trace_execveat_sucompat_hook(
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ksu_trace_execveat_sucompat_hook_callback, NULL);
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unregister_trace_ksu_trace_faccessat_hook(
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ksu_trace_faccessat_hook_callback, NULL);
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unregister_trace_ksu_trace_sys_read_hook(
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ksu_trace_sys_read_hook_callback, NULL);
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unregister_trace_ksu_trace_stat_hook(ksu_trace_stat_hook_callback,
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NULL);
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unregister_trace_ksu_trace_input_hook(ksu_trace_input_hook_callback,
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NULL);
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unregister_trace_ksu_trace_devpts_hook(ksu_trace_devpts_hook_callback,
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NULL);
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}
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