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kernel: baby version of profile

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This commit is contained in:
weishu
2023-06-03 00:00:56 +08:00
parent 41265b0203
commit 3abb7e4ca2
4 changed files with 189 additions and 62 deletions
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44
kernel/core_hook.c
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@@ -186,7 +186,8 @@ int ksu_handle_prctl(int option, unsigned long arg2, unsigned long arg3,
if (userId == 0) {
prefix = "/data/data";
} else {
snprintf(prefixTmp, sizeof(prefixTmp), "/data/user/%d", userId);
snprintf(prefixTmp, sizeof(prefixTmp), "/data/user/%d",
userId);
prefix = prefixTmp;
}
@@ -227,10 +228,6 @@ int ksu_handle_prctl(int option, unsigned long arg2, unsigned long arg3,
if (copy_to_user(result, &reply_ok, sizeof(reply_ok))) {
pr_err("grant_root: prctl reply error\n");
}
} else {
pr_info("deny root for: %d\n", current_uid());
// add it to deny list!
ksu_allow_uid(current_uid().val, false, true);
}
return 0;
}
@@ -332,17 +329,37 @@ int ksu_handle_prctl(int option, unsigned long arg2, unsigned long arg3,
}
// we are already manager
if (arg2 == CMD_ALLOW_SU || arg2 == CMD_DENY_SU) {
bool allow = arg2 == CMD_ALLOW_SU;
bool success = false;
uid_t uid = (uid_t)arg3;
success = ksu_allow_uid(uid, allow, true);
if (success) {
if (arg2 == CMD_GET_APP_PROFILE) {
struct app_profile profile;
if (copy_from_user(&profile, arg3, sizeof(profile))) {
pr_err("copy profile failed\n");
return 0;
}
ksu_get_app_profile(&profile);
if (copy_to_user(arg3, &profile, sizeof(profile))) {
pr_err("copy profile failed\n");
return 0;
}
if (copy_to_user(result, &reply_ok, sizeof(reply_ok))) {
pr_err("prctl reply error, cmd: %d\n", arg2);
}
return 0;
}
if (arg2 == CMD_SET_APP_PROFILE) {
struct app_profile profile;
if (copy_from_user(&profile, arg3, sizeof(profile))) {
pr_err("copy profile failed\n");
return 0;
}
// todo: validate the params
if (ksu_set_app_profile(&profile, true)) {
if (copy_to_user(result, &reply_ok, sizeof(reply_ok))) {
pr_err("prctl reply error, cmd: %d\n", arg2);
}
}
ksu_show_allow_list();
return 0;
}
@@ -366,7 +383,8 @@ static bool should_umount(struct path *path)
}
if (current->nsproxy->mnt_ns == init_nsproxy.mnt_ns) {
pr_info("ignore global mnt namespace process: %d\n", current_uid().val);
pr_info("ignore global mnt namespace process: %d\n",
current_uid().val);
return false;
}