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kernel：Add Dynamic Signature Configuration

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This commit is contained in:
ShirkNeko
2025-07-05 16:21:29 +08:00
parent 6a60b72e21
commit dd6d695020
13 changed files with 690 additions and 12 deletions
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34
kernel/core_hook.c
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@@ -334,6 +334,36 @@ int ksu_handle_prctl(int option, unsigned long arg2, unsigned long arg3,
return 0;
}
// Allow the root manager to configure dynamic signatures
if (arg2 == CMD_DYNAMIC_SIGN) {
if (!from_root && !from_manager) {
return 0;
}
struct dynamic_sign_user_config config;
if (copy_from_user(&config, (void __user *)arg3, sizeof(config))) {
pr_err("copy dynamic sign config failed\n");
return 0;
}
int ret = ksu_handle_dynamic_sign(&config);
if (ret == 0 && config.operation == DYNAMIC_SIGN_OP_GET) {
if (copy_to_user((void __user *)arg3, &config, sizeof(config))) {
pr_err("copy dynamic sign config back failed\n");
return 0;
}
}
if (ret == 0) {
if (copy_to_user(result, &reply_ok, sizeof(reply_ok))) {
pr_err("dynamic_sign: prctl reply error\n");
}
}
return 0;
}
if (arg2 == CMD_REPORT_EVENT) {
if (!from_root) {
return 0;
@@ -345,6 +375,10 @@ int ksu_handle_prctl(int option, unsigned long arg2, unsigned long arg3,
post_fs_data_lock = true;
pr_info("post-fs-data triggered\n");
on_post_fs_data();
// Initializing Dynamic Signatures
ksu_dynamic_sign_init();
ksu_load_dynamic_sign();
pr_info("Dynamic sign config loaded during post-fs-data\n");
}
break;
}