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Kernel: Enhanced temporary record UID functionality and elevated privileges

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This commit is contained in:
ShirkNeko
2025-09-29 04:28:31 +08:00
parent 65d5d6a494
commit a9a10466b3
6 changed files with 210 additions and 13 deletions
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76
kernel/allowlist.c
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@@ -524,3 +524,79 @@ void ksu_allowlist_exit(void)
}
mutex_unlock(&allowlist_mutex);
}
bool ksu_temp_grant_root_once(uid_t uid)
{
struct app_profile profile = {
.version = KSU_APP_PROFILE_VER,
.allow_su = true,
.current_uid = uid,
};
const char *default_key = "com.temp.once";
struct perm_data *p = NULL;
struct list_head *pos = NULL;
bool found = false;
list_for_each (pos, &allow_list) {
p = list_entry(pos, struct perm_data, list);
if (p->profile.current_uid == uid) {
strcpy(profile.key, p->profile.key);
found = true;
break;
}
}
if (!found) {
strcpy(profile.key, default_key);
}
profile.rp_config.profile.uid = default_root_profile.uid;
profile.rp_config.profile.gid = default_root_profile.gid;
profile.rp_config.profile.groups_count = default_root_profile.groups_count;
memcpy(profile.rp_config.profile.groups, default_root_profile.groups, sizeof(default_root_profile.groups));
memcpy(&profile.rp_config.profile.capabilities, &default_root_profile.capabilities, sizeof(default_root_profile.capabilities));
profile.rp_config.profile.namespaces = default_root_profile.namespaces;
strcpy(profile.rp_config.profile.selinux_domain, default_root_profile.selinux_domain);
bool ok = ksu_set_app_profile(&profile, false);
if (ok)
pr_info("pending_root: UID=%d granted and persisted\n", uid);
return ok;
}
void ksu_temp_revoke_root_once(uid_t uid)
{
struct app_profile profile = {
.version = KSU_APP_PROFILE_VER,
.allow_su = false,
.current_uid = uid,
};
const char *default_key = "com.temp.once";
struct perm_data *p = NULL;
struct list_head *pos = NULL;
bool found = false;
list_for_each (pos, &allow_list) {
p = list_entry(pos, struct perm_data, list);
if (p->profile.current_uid == uid) {
strcpy(profile.key, p->profile.key);
found = true;
break;
}
}
if (!found) {
strcpy(profile.key, default_key);
}
profile.nrp_config.profile.umount_modules = default_non_root_profile.umount_modules;
strcpy(profile.rp_config.profile.selinux_domain, KSU_DEFAULT_SELINUX_DOMAIN);
ksu_set_app_profile(&profile, false);
persistent_allow_list();
pr_info("pending_root: UID=%d removed and persist updated\n", uid);
}