+ printf("low swap: unable to find any eligible processes to take action on\n");
+
+ return 0;
+}
+
+int
+proc_trace_log(__unused proc_t p, struct proc_trace_log_args *uap, __unused int *retval)
+{
+ int ret = 0;
+ proc_t target_proc = PROC_NULL;
+ pid_t target_pid = uap->pid;
+ uint64_t target_uniqueid = uap->uniqueid;
+ task_t target_task = NULL;
+
+ if (priv_check_cred(kauth_cred_get(), PRIV_PROC_TRACE_INSPECT, 0)) {
+ ret = EPERM;
+ goto out;
+ }
+ target_proc = proc_find(target_pid);
+ if (target_proc != PROC_NULL) {
+ if (target_uniqueid != proc_uniqueid(target_proc)) {
+ ret = ENOENT;
+ goto out;
+ }
+
+ target_task = proc_task(target_proc);
+ if (task_send_trace_memory(target_task, target_pid, target_uniqueid)) {
+ ret = EINVAL;
+ goto out;
+ }
+ } else {
+ ret = ENOENT;
+ }
+
+out:
+ if (target_proc != PROC_NULL) {
+ proc_rele(target_proc);
+ }
+ return ret;
+}
+
+#if VM_SCAN_FOR_SHADOW_CHAIN
+extern int vm_map_shadow_max(vm_map_t map);
+int proc_shadow_max(void);
+int
+proc_shadow_max(void)
+{
+ int retval, max;
+ proc_t p;
+ task_t task;
+ vm_map_t map;
+
+ max = 0;
+ proc_list_lock();
+ for (p = allproc.lh_first; (p != 0); p = p->p_list.le_next) {
+ if (p->p_stat == SIDL) {
+ continue;
+ }
+ task = p->task;
+ if (task == NULL) {
+ continue;
+ }
+ map = get_task_map(task);
+ if (map == NULL) {
+ continue;
+ }
+ retval = vm_map_shadow_max(map);
+ if (retval > max) {
+ max = retval;
+ }
+ }
+ proc_list_unlock();
+ return max;
+}
+#endif /* VM_SCAN_FOR_SHADOW_CHAIN */
+
+void proc_set_responsible_pid(proc_t target_proc, pid_t responsible_pid);
+void
+proc_set_responsible_pid(proc_t target_proc, pid_t responsible_pid)
+{
+ if (target_proc != NULL) {
+ target_proc->p_responsible_pid = responsible_pid;
+ }
+ return;
+}
+
+int
+proc_chrooted(proc_t p)
+{
+ int retval = 0;
+
+ if (p) {
+ proc_fdlock(p);
+ retval = (p->p_fd->fd_rdir != NULL) ? 1 : 0;
+ proc_fdunlock(p);
+ }
+
+ return retval;
+}
+
+boolean_t
+proc_send_synchronous_EXC_RESOURCE(proc_t p)
+{
+ if (p == PROC_NULL) {
+ return FALSE;
+ }
+
+ /* Send sync EXC_RESOURCE if the process is traced */
+ if (ISSET(p->p_lflag, P_LTRACED)) {
+ return TRUE;
+ }
+ return FALSE;
+}
+
+size_t
+proc_get_syscall_filter_mask_size(int which)
+{
+ if (which == SYSCALL_MASK_UNIX) {
+ return nsysent;
+ }
+
+ return 0;
+}
+
+int
+proc_set_syscall_filter_mask(proc_t p, int which, unsigned char *maskptr, size_t masklen)
+{
+#if DEVELOPMENT || DEBUG
+ if (syscallfilter_disable) {
+ printf("proc_set_syscall_filter_mask: attempt to set policy for pid %d, but disabled by boot-arg\n", proc_pid(p));
+ return KERN_SUCCESS;
+ }
+#endif // DEVELOPMENT || DEBUG
+
+ if (which != SYSCALL_MASK_UNIX ||
+ (maskptr != NULL && masklen != nsysent)) {
+ return EINVAL;
+ }
+
+ p->syscall_filter_mask = maskptr;
+
+ return KERN_SUCCESS;
+}
+
+bool
+proc_is_traced(proc_t p)
+{
+ bool ret = FALSE;
+ assert(p != PROC_NULL);
+ proc_lock(p);
+ if (p->p_lflag & P_LTRACED) {
+ ret = TRUE;
+ }
+ proc_unlock(p);
+ return ret;
+}
+
+#ifdef CONFIG_32BIT_TELEMETRY
+void
+proc_log_32bit_telemetry(proc_t p)
+{
+ /* Gather info */
+ char signature_buf[MAX_32BIT_EXEC_SIG_SIZE] = { 0 };
+ char * signature_cur_end = &signature_buf[0];
+ char * signature_buf_end = &signature_buf[MAX_32BIT_EXEC_SIG_SIZE - 1];
+ int bytes_printed = 0;
+
+ const char * teamid = NULL;
+ const char * identity = NULL;
+ struct cs_blob * csblob = NULL;
+
+ proc_list_lock();
+
projects / apple / xnu.git / blobdiff