name : procfs_manager.c /** @file procfs_manager.c @brief Manager for procfs @details Copyright (c) 2025 Acronis International GmbH @author Denis Kopyrin (denis.kopyrin@acronis.com) @since $Id: $ */ #include "procfs_manager.h" #include "path_tools.h" lru_hashtable_manager_t *global_procfs_manager; // MARK: Procfs manager int procfs_manager_init(void) { return lru_hashtable_manager_init(&global_procfs_manager); } void procfs_manager_deinit(void) { lru_hashtable_manager_deinit(global_procfs_manager); } void procfs_manager_activate(void) { lru_hashtable_manager_activate(global_procfs_manager); } void procfs_manager_deactivate(void) { lru_hashtable_manager_deactivate(global_procfs_manager); } static bool procfs_manager_key_exist(const lru_hashtable_key_t *key) { return lru_hashtable_manager_key_exist(global_procfs_manager, key, LRU_HASHTABLE_KEY_TYPE_PROCFS); } bool procfs_should_send(task_info_t *caller_task_info, const struct path *target_path, lru_hashtable_key_t *out_key, task_info_t **target_task_info) { SiProcfsAccessType access_type; uint64_t caller_pid_version = 0; uint64_t target_pid_version = 0; pid_t target_pid = 0; if(!READ_ONCE(global_procfs_manager->active)) return false; if (!caller_task_info || !target_path || !out_key) return false; caller_pid_version = READ_ONCE(caller_task_info->pid_version); if(get_procfs_access_info(target_path, &target_pid, &access_type) == false) return false; *target_task_info = task_info_map_get_by_pid(target_pid, 0); if (!*target_task_info) return false; target_pid_version = READ_ONCE((*target_task_info)->pid_version); out_key->procfs_key.access_type = access_type; out_key->procfs_key.caller_pid_version = caller_pid_version; out_key->procfs_key.target_pid_version = target_pid_version; if (procfs_manager_key_exist(out_key)) { return false; } return true; }