kernel: Reformat code using clang-format (#347)
* 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.
This commit is contained in:
Helium_Studio
GitHub
227
kernel/kpm/kpm.c
227
kernel/kpm/kpm.c
@@ -23,7 +23,7 @@
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#include <linux/list.h>
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#include <linux/spinlock.h>
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#include <linux/rcupdate.h>
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#include <asm/elf.h> /* 包含 ARM64 重定位类型定义 */
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#include <asm/elf.h> /* 包含 ARM64 重定位类型定义 */
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#include <linux/vmalloc.h>
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#include <linux/mm.h>
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#include <linux/string.h>
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@@ -38,7 +38,7 @@
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#include <linux/kprobes.h>
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#include <linux/stacktrace.h>
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#include <linux/kallsyms.h>
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#if LINUX_VERSION_CODE >= KERNEL_VERSION(5,0,0) && defined(CONFIG_MODULES)
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#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 0, 0) && defined(CONFIG_MODULES)
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#include <linux/moduleloader.h> // 需要启用 CONFIG_MODULES
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#endif
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#include "kpm.h"
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@@ -46,81 +46,96 @@
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#ifndef NO_OPTIMIZE
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#if defined(__GNUC__) && !defined(__clang__)
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#define NO_OPTIMIZE __attribute__((optimize("O0")))
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#define NO_OPTIMIZE __attribute__((optimize("O0")))
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#elif defined(__clang__)
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#define NO_OPTIMIZE __attribute__((optnone))
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#define NO_OPTIMIZE __attribute__((optnone))
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#else
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#define NO_OPTIMIZE
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#define NO_OPTIMIZE
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#endif
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#endif
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// ============================================================================================
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noinline
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NO_OPTIMIZE
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void sukisu_kpm_load_module_path(const char* path, const char* args, void* ptr, void __user* result) {
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// This is a KPM module stub.
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int res = -1;
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printk("KPM: Stub function called (sukisu_kpm_load_module_path). path=%s args=%s ptr=%p\n", path, args, ptr);
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__asm__ volatile("nop"); // 精确控制循环不被优化
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if(copy_to_user(result, &res, sizeof(res)) < 1) printk("KPM: Copy to user failed.");
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noinline NO_OPTIMIZE void sukisu_kpm_load_module_path(const char *path,
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const char *args,
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void *ptr,
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void __user *result)
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{
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// This is a KPM module stub.
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int res = -1;
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printk("KPM: Stub function called (sukisu_kpm_load_module_path). path=%s args=%s ptr=%p\n",
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path, args, ptr);
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__asm__ volatile("nop"); // 精确控制循环不被优化
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if (copy_to_user(result, &res, sizeof(res)) < 1)
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printk("KPM: Copy to user failed.");
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}
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noinline
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NO_OPTIMIZE
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void sukisu_kpm_unload_module(const char* name, void* ptr, void __user* result) {
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// This is a KPM module stub.
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int res = -1;
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printk("KPM: Stub function called (sukisu_kpm_unload_module). name=%s ptr=%p\n", name, ptr);
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__asm__ volatile("nop"); // 精确控制循环不被优化
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if(copy_to_user(result, &res, sizeof(res)) < 1) printk("KPM: Copy to user failed.");
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noinline NO_OPTIMIZE void sukisu_kpm_unload_module(const char *name, void *ptr,
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void __user *result)
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{
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// This is a KPM module stub.
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int res = -1;
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printk("KPM: Stub function called (sukisu_kpm_unload_module). name=%s ptr=%p\n",
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name, ptr);
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__asm__ volatile("nop"); // 精确控制循环不被优化
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if (copy_to_user(result, &res, sizeof(res)) < 1)
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printk("KPM: Copy to user failed.");
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}
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noinline
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NO_OPTIMIZE
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void sukisu_kpm_num(void __user* result) {
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// This is a KPM module stub.
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int res = 0;
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printk("KPM: Stub function called (sukisu_kpm_num).\n");
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__asm__ volatile("nop"); // 精确控制循环不被优化
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if(copy_to_user(result, &res, sizeof(res)) < 1) printk("KPM: Copy to user failed.");
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noinline NO_OPTIMIZE void sukisu_kpm_num(void __user *result)
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{
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// This is a KPM module stub.
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int res = 0;
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printk("KPM: Stub function called (sukisu_kpm_num).\n");
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__asm__ volatile("nop"); // 精确控制循环不被优化
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if (copy_to_user(result, &res, sizeof(res)) < 1)
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printk("KPM: Copy to user failed.");
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}
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noinline
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NO_OPTIMIZE
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void sukisu_kpm_info(const char* name, void __user* out, void __user* result) {
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// This is a KPM module stub.
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int res = -1;
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printk("KPM: Stub function called (sukisu_kpm_info). name=%s buffer=%p\n", name, out);
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__asm__ volatile("nop"); // 精确控制循环不被优化
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if(copy_to_user(result, &res, sizeof(res)) < 1) printk("KPM: Copy to user failed.");
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noinline NO_OPTIMIZE void sukisu_kpm_info(const char *name, void __user *out,
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void __user *result)
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{
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// This is a KPM module stub.
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int res = -1;
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printk("KPM: Stub function called (sukisu_kpm_info). name=%s buffer=%p\n",
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name, out);
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__asm__ volatile("nop"); // 精确控制循环不被优化
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if (copy_to_user(result, &res, sizeof(res)) < 1)
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printk("KPM: Copy to user failed.");
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}
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noinline
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NO_OPTIMIZE
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void sukisu_kpm_list(void __user* out, unsigned int bufferSize, void __user* result) {
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// This is a KPM module stub.
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int res = -1;
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printk("KPM: Stub function called (sukisu_kpm_list). buffer=%p size=%d\n", out, bufferSize);
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if(copy_to_user(result, &res, sizeof(res)) < 1) printk("KPM: Copy to user failed.");
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noinline NO_OPTIMIZE void
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sukisu_kpm_list(void __user *out, unsigned int bufferSize, void __user *result)
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{
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// This is a KPM module stub.
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int res = -1;
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printk("KPM: Stub function called (sukisu_kpm_list). buffer=%p size=%d\n",
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out, bufferSize);
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if (copy_to_user(result, &res, sizeof(res)) < 1)
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printk("KPM: Copy to user failed.");
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}
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noinline
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NO_OPTIMIZE
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void sukisu_kpm_control(void __user* name, void __user* args, void __user* result) {
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// This is a KPM module stub.
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int res = -1;
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printk("KPM: Stub function called (sukisu_kpm_control). name=%p args=%p\n", name, args);
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__asm__ volatile("nop"); // 精确控制循环不被优化
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if(copy_to_user(result, &res, sizeof(res)) < 1) printk("KPM: Copy to user failed.");
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noinline NO_OPTIMIZE void
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sukisu_kpm_control(void __user *name, void __user *args, void __user *result)
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{
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// This is a KPM module stub.
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int res = -1;
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printk("KPM: Stub function called (sukisu_kpm_control). name=%p args=%p\n",
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name, args);
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__asm__ volatile("nop"); // 精确控制循环不被优化
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if (copy_to_user(result, &res, sizeof(res)) < 1)
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printk("KPM: Copy to user failed.");
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}
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noinline
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NO_OPTIMIZE
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void sukisu_kpm_version(void __user* out, unsigned int bufferSize, void __user* result) {
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int res = -1;
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printk("KPM: Stub function called (sukisu_kpm_version). buffer=%p size=%d\n", out, bufferSize);
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if(copy_to_user(result, &res, sizeof(res)) < 1) printk("KPM: Copy to user failed.");
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noinline NO_OPTIMIZE void sukisu_kpm_version(void __user *out,
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unsigned int bufferSize,
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void __user *result)
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{
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int res = -1;
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printk("KPM: Stub function called (sukisu_kpm_version). buffer=%p size=%d\n",
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out, bufferSize);
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if (copy_to_user(result, &res, sizeof(res)) < 1)
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printk("KPM: Copy to user failed.");
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}
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EXPORT_SYMBOL(sukisu_kpm_load_module_path);
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@@ -131,54 +146,66 @@ EXPORT_SYMBOL(sukisu_kpm_list);
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EXPORT_SYMBOL(sukisu_kpm_version);
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EXPORT_SYMBOL(sukisu_kpm_control);
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noinline
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int sukisu_handle_kpm(unsigned long arg2, unsigned long arg3, unsigned long arg4, unsigned long arg5)
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noinline int sukisu_handle_kpm(unsigned long arg2, unsigned long arg3,
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unsigned long arg4, unsigned long arg5)
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{
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if(arg2 == SUKISU_KPM_LOAD) {
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char kernel_load_path[256] = { 0 };
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char kernel_args_buffer[256] = { 0 };
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if (arg2 == SUKISU_KPM_LOAD) {
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char kernel_load_path[256] = { 0 };
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char kernel_args_buffer[256] = { 0 };
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if(arg3 == 0) {
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return -1;
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}
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strncpy_from_user((char*)&kernel_load_path, (const char __user *)arg3, 255);
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if(arg4 != 0) {
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strncpy_from_user((char*)&kernel_args_buffer, (const char __user *)arg4, 255);
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}
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sukisu_kpm_load_module_path((const char*)&kernel_load_path, (const char*) &kernel_args_buffer, NULL, (void __user*) arg5);
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} else if(arg2 == SUKISU_KPM_UNLOAD) {
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char kernel_name_buffer[256] = { 0 };
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if (arg3 == 0) {
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return -1;
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}
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if(arg3 == 0) {
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return -1;
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}
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strncpy_from_user((char*)&kernel_name_buffer, (const char __user *)arg3, 255);
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sukisu_kpm_unload_module((const char*) &kernel_name_buffer, NULL, (void __user*) arg5);
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} else if(arg2 == SUKISU_KPM_NUM) {
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sukisu_kpm_num((void __user*) arg5);
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} else if(arg2 == SUKISU_KPM_INFO) {
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char kernel_name_buffer[256] = { 0 };
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strncpy_from_user((char *)&kernel_load_path,
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(const char __user *)arg3, 255);
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if (arg4 != 0) {
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strncpy_from_user((char *)&kernel_args_buffer,
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(const char __user *)arg4, 255);
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}
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sukisu_kpm_load_module_path((const char *)&kernel_load_path,
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(const char *)&kernel_args_buffer,
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NULL, (void __user *)arg5);
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} else if (arg2 == SUKISU_KPM_UNLOAD) {
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char kernel_name_buffer[256] = { 0 };
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if(arg3 == 0 || arg4 == 0) {
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return -1;
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}
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strncpy_from_user((char*)&kernel_name_buffer, (const char __user *)arg3, 255);
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sukisu_kpm_info((const char*) &kernel_name_buffer, (char __user*) arg4, (void __user*) arg5);
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} else if(arg2 == SUKISU_KPM_LIST) {
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sukisu_kpm_list((char __user*) arg3, (unsigned int) arg4, (void __user*) arg5);
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} else if(arg2 == SUKISU_KPM_VERSION) {
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sukisu_kpm_version((char __user*) arg3, (unsigned int) arg4, (void __user*) arg5);
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} else if(arg2 == SUKISU_KPM_CONTROL) {
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sukisu_kpm_control((char __user*) arg3, (char __user*) arg4, (void __user*) arg5);
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}
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return 0;
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if (arg3 == 0) {
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return -1;
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}
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strncpy_from_user((char *)&kernel_name_buffer,
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(const char __user *)arg3, 255);
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sukisu_kpm_unload_module((const char *)&kernel_name_buffer,
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NULL, (void __user *)arg5);
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} else if (arg2 == SUKISU_KPM_NUM) {
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sukisu_kpm_num((void __user *)arg5);
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} else if (arg2 == SUKISU_KPM_INFO) {
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char kernel_name_buffer[256] = { 0 };
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if (arg3 == 0 || arg4 == 0) {
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return -1;
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}
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strncpy_from_user((char *)&kernel_name_buffer,
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(const char __user *)arg3, 255);
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sukisu_kpm_info((const char *)&kernel_name_buffer,
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(char __user *)arg4, (void __user *)arg5);
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} else if (arg2 == SUKISU_KPM_LIST) {
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sukisu_kpm_list((char __user *)arg3, (unsigned int)arg4,
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(void __user *)arg5);
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} else if (arg2 == SUKISU_KPM_VERSION) {
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sukisu_kpm_version((char __user *)arg3, (unsigned int)arg4,
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(void __user *)arg5);
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} else if (arg2 == SUKISU_KPM_CONTROL) {
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sukisu_kpm_control((char __user *)arg3, (char __user *)arg4,
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(void __user *)arg5);
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}
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return 0;
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}
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int sukisu_is_kpm_control_code(unsigned long arg2) {
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return (arg2 >= CMD_KPM_CONTROL && arg2 <= CMD_KPM_CONTROL_MAX) ? 1 : 0;
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int sukisu_is_kpm_control_code(unsigned long arg2)
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{
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return (arg2 >= CMD_KPM_CONTROL && arg2 <= CMD_KPM_CONTROL_MAX) ? 1 : 0;
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}
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EXPORT_SYMBOL(sukisu_handle_kpm);
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