sys/kern/kern_exec.c

152 	int error;
159 		error = SYSCTL_OUT(req, &val, sizeof(val));
162 		error = SYSCTL_OUT(req, &p->p_sysent->sv_psstrings,
164 	return error;
171 	int error;
178 		error = SYSCTL_OUT(req, &val, sizeof(val));
181 		error = SYSCTL_OUT(req, &p->p_sysent->sv_usrstack,
183 	return error;
215 	int error;
217 	error = pre_execve(td, &oldvmspace);
218 	if (error != 0)
219 		return (error);
220 	error = exec_copyin_args(&args, uap->fname, UIO_USERSPACE,
222 	if (error == 0)
223 		error = kern_execve(td, &args, NULL, oldvmspace);
224 	post_execve(td, error, oldvmspace);
225 	return (error);
240 	int error;
242 	error = pre_execve(td, &oldvmspace);
243 	if (error != 0)
244 		return (error);
245 	error = exec_copyin_args(&args, NULL, UIO_SYSSPACE,
247 	if (error == 0) {
249 		error = kern_execve(td, &args, NULL, oldvmspace);
251 	post_execve(td, error, oldvmspace);
252 	return (error);
270 	int error;
272 	error = pre_execve(td, &oldvmspace);
273 	if (error != 0)
274 		return (error);
275 	error = exec_copyin_args(&args, uap->fname, UIO_USERSPACE,
277 	if (error == 0)
278 		error = kern_execve(td, &args, uap->mac_p, oldvmspace);
279 	post_execve(td, error, oldvmspace);
280 	return (error);
290 	int error;
293 	error = 0;
298 			error = ERESTART;
301 	KASSERT(error != 0 || (td->td_pflags & TDP_EXECVMSPC) == 0,
304 	return (error);
308 post_execve(struct thread *td, int error, struct vmspace *oldvmspace)
320 		if (error == 0)
381 	int error, i, orig_osrel;
410 	error = mac_execve_enter(imgp, mac_p);
411 	if (error)
436 		 * Catch indirect lookups and return a permissions error.
439 			error = ECAPMODE;
443 		error = namei(&nd);
444 		if (error)
454 		error = fgetvp_exec(td, args->fd,
456 		if (error)
466 	error = exec_check_permissions(imgp);
467 	if (error)
484 	error = exec_map_first_page(imgp);
485 	if (error)
592 	error = -1;
594 		error = img_first(imgp);
599 	 *	and an error otherwise.
601 	for (i = 0; error == -1 && execsw[i]; ++i) {
606 		error = (*execsw[i]->ex_imgact)(imgp);
609 	if (error) {
610 		if (error == -1) {
613 			error = ENOEXEC;
667 		error = ENOEXEC;
798 		error = fdcheckstd(td);
800 		if (error != 0)
893 	if (error != 0) {
905 		if (error != 0)
916 	if (error == 0) {
934 		SDT_PROBE1(proc, , , exec__failure, error);
964 	if (error && imgp->vmspace_destroyed) {
972 	if (error == 0)
976 	return (error);
1085 	int error;
1120 		error = vmspace_exec(p, sv_minuser, sv->sv_maxuser);
1121 		if (error)
1122 			return (error);
1131 		error = vm_map_fixed(map, obj, 0,
1136 		if (error != KERN_SUCCESS) {
1138 			return (vm_mmap_to_errno(error));
1160 	error = vm_map_stack(map, stack_addr, (vm_size_t)ssiz,
1163 	if (error != KERN_SUCCESS)
1164 		return (vm_mmap_to_errno(error));
1185 	int error;
1196 	error = exec_alloc_args(args);
1197 	if (error != 0)
1198 		return (error);
1205 		error = (segflg == UIO_SYSSPACE) ?
1208 		if (error != 0)
1221 		error = fueword(argv++, &argp);
1222 		if (error == -1) {
1223 			error = EFAULT;
1228 		error = copyinstr((void *)(uintptr_t)argp, args->endp,
1230 		if (error != 0) {
1231 			if (error == ENAMETOOLONG)
1232 				error = E2BIG;
1247 			error = fueword(envv++, &envp);
1248 			if (error == -1) {
1249 				error = EFAULT;
1254 			error = copyinstr((void *)(uintptr_t)envp,
1256 			if (error != 0) {
1257 				if (error == ENAMETOOLONG)
1258 					error = E2BIG;
1271 	return (error);
1281 	int error;
1287 	error = exec_alloc_args(args);
1288 	if (error != 0)
1289 		return (error);
1300 		error = copyin(data, args->begin_argv, datalen);
1301 		if (error != 0)
1323 	error = copyin(fds, kfds, fdslen * sizeof(int));
1324 	if (error != 0) {
1328 	error = fdcopy_remapped(ofdp, kfds, fdslen, &args->fdp);
1330 	if (error != 0)
1336 	return (error);
1623  *	Return 0 for success or error code on failure.
1631 	int error, writecount;
1636 	error = VOP_GETATTR(vp, attr, td->td_ucred);
1637 	if (error)
1638 		return (error);
1641 	error = mac_vnode_check_exec(td->td_ucred, imgp->vp, imgp);
1642 	if (error)
1643 		return (error);
1668 	error = VOP_ACCESS(vp, VEXEC, td->td_ucred, td);
1669 	if (error)
1670 		return (error);
1676 	error = VOP_GET_WRITECOUNT(vp, &writecount);
1677 	if (error != 0)
1678 		return (error);
1686 	error = VOP_OPEN(vp, FREAD, td->td_ucred, td, NULL);
1687 	if (error == 0)
1689 	return (error);