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docs: Sync TRACEPOINT HOOK v1.1 (#456)

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- Replace trace_ksu_trace_execveat_sucompat_hook with trace_ksu_trace_execveat_hook to align with v1.1 changes
  The new hook now passes argv/envp and a flags argument, adding support for 32-on-64 environments.
- Remove the devpts hook section from both English and Chinese guides
  The devpts (pty.c) hook example was deprecated in v1.1 and is no longer required.

Link: f1f7c61aee

Signed-off-by: Prslc <prslc113@gmail.com>
This commit is contained in:
Prslc
2025-10-10 00:39:15 +08:00
committed by GitHub
parent ca7b53370e
commit b827360ac6
2 changed files with 3 additions and 65 deletions
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33
docs/guide/tracepoint-hook.md
View File

@@ -44,7 +44,7 @@ Generally need to modify the `do_execve` and `compat_do_execve` methods in `fs/e
.ptr.compat = __envp, .ptr.compat = __envp,
}; };
+#if defined(CONFIG_KSU) && defined(CONFIG_KSU_TRACEPOINT_HOOK) +#if defined(CONFIG_KSU) && defined(CONFIG_KSU_TRACEPOINT_HOOK)
+ trace_ksu_trace_execveat_sucompat_hook((int *)AT_FDCWD, &filename, NULL, NULL, NULL); /* 32-bit su */ + trace_ksu_trace_execveat_hook((int *)AT_FDCWD, &filename, &argv, &envp, 0)); // 32-bit su and 32-on-64 support
+#endif +#endif
return do_execveat_common(AT_FDCWD, filename, argv, envp, 0); return do_execveat_common(AT_FDCWD, filename, argv, envp, 0);
} }
@@ -237,34 +237,3 @@ Need to modify the `input_event` method in `drivers/input/input.c`, not `input_h
spin_lock_irqsave(&dev->event_lock, flags); spin_lock_irqsave(&dev->event_lock, flags);
``` ```
### devpts Hook (`pty.c`)
Need to modify the `pts_unix98_lookup` method in `drivers/tty/pty.c`
```patch
--- a/drivers/tty/pty.c
+++ b/drivers/tty/pty.c
@@ -31,6 +31,10 @@
#include <linux/compat.h>
#include "tty.h"
+#if defined(CONFIG_KSU) && defined(CONFIG_KSU_TRACEPOINT_HOOK)
+#include <../../drivers/kernelsu/ksu_trace.h>
+#endif
+
#undef TTY_DEBUG_HANGUP
#ifdef TTY_DEBUG_HANGUP
# define tty_debug_hangup(tty, f, args...) tty_debug(tty, f, ##args)
@@ -707,6 +711,10 @@ static struct tty_struct *pts_unix98_lookup(struct tty_driver *driver,
{
struct tty_struct *tty;
+#if defined(CONFIG_KSU) && defined(CONFIG_KSU_TRACEPOINT_HOOK)
+ trace_ksu_trace_devpts_hook((struct inode *)file->f_path.dentry->d_inode);
+#endif
+
mutex_lock(&devpts_mutex);
tty = devpts_get_priv(file->f_path.dentry);
mutex_unlock(&devpts_mutex);
```

35
docs/zh/guide/tracepoint-hook.md
View File

@@ -44,7 +44,7 @@
.ptr.compat = __envp, .ptr.compat = __envp,
}; };
+#if defined(CONFIG_KSU) && defined(CONFIG_KSU_TRACEPOINT_HOOK) +#if defined(CONFIG_KSU) && defined(CONFIG_KSU_TRACEPOINT_HOOK)
+ trace_ksu_trace_execveat_sucompat_hook((int *)AT_FDCWD, &filename, NULL, NULL, NULL); /* 32-bit su */ + trace_ksu_trace_execveat_hook((int *)AT_FDCWD, &filename, &argv, &envp, 0)); // 32-bit su and 32-on-64 support
+#endif +#endif
return do_execveat_common(AT_FDCWD, filename, argv, envp, 0); return do_execveat_common(AT_FDCWD, filename, argv, envp, 0);
} }
@@ -236,35 +236,4 @@
if (is_event_supported(type, dev->evbit, EV_MAX)) { if (is_event_supported(type, dev->evbit, EV_MAX)) {
spin_lock_irqsave(&dev->event_lock, flags); spin_lock_irqsave(&dev->event_lock, flags);
``` ```
### devpts 钩子 (`pty.c`)
需要修改 `drivers/tty/pty.c` 的 `pts_unix98_lookup` 方法
```patch
--- a/drivers/tty/pty.c
+++ b/drivers/tty/pty.c
@@ -31,6 +31,10 @@
#include <linux/compat.h>
#include "tty.h"
+#if defined(CONFIG_KSU) && defined(CONFIG_KSU_TRACEPOINT_HOOK)
+#include <../../drivers/kernelsu/ksu_trace.h>
+#endif
+
#undef TTY_DEBUG_HANGUP
#ifdef TTY_DEBUG_HANGUP
# define tty_debug_hangup(tty, f, args...) tty_debug(tty, f, ##args)
@@ -707,6 +711,10 @@ static struct tty_struct *pts_unix98_lookup(struct tty_driver *driver,
{
struct tty_struct *tty;
+#if defined(CONFIG_KSU) && defined(CONFIG_KSU_TRACEPOINT_HOOK)
+ trace_ksu_trace_devpts_hook((struct inode *)file->f_path.dentry->d_inode);
+#endif
+
mutex_lock(&devpts_mutex);
tty = devpts_get_priv(file->f_path.dentry);
mutex_unlock(&devpts_mutex);
```