99 static inline unsigned int match_component(struct aa_profile *profile,  in match_component()  argument
106 		state = aa_dfa_match(profile->file.dfa, state, "&");  in match_component()
107 	if (profile->ns == tp->ns)  in match_component()
108 		return aa_dfa_match(profile->file.dfa, state, tp->base.hname);  in match_component()
111 	ns_name = aa_ns_name(profile->ns, tp->ns, true);  in match_component()
112 	state = aa_dfa_match_len(profile->file.dfa, state, ":", 1);  in match_component()
113 	state = aa_dfa_match(profile->file.dfa, state, ns_name);  in match_component()
114 	state = aa_dfa_match_len(profile->file.dfa, state, ":", 1);  in match_component()
115 	return aa_dfa_match(profile->file.dfa, state, tp->base.hname);  in match_component()
134 static int label_compound_match(struct aa_profile *profile,  in label_compound_match()  argument
145 		if (!aa_ns_visible(profile->ns, tp->ns, subns))  in label_compound_match()
147 		state = match_component(profile, tp, stack, state);  in label_compound_match()
159 		if (!aa_ns_visible(profile->ns, tp->ns, subns))  in label_compound_match()
161 		state = aa_dfa_match(profile->file.dfa, state, "//&");  in label_compound_match()
162 		state = match_component(profile, tp, false, state);  in label_compound_match()
166 	*perms = aa_compute_fperms(profile->file.dfa, state, &cond);  in label_compound_match()
167 	aa_apply_modes_to_perms(profile, perms);  in label_compound_match()
194 static int label_components_match(struct aa_profile *profile,  in label_components_match()  argument
207 		if (!aa_ns_visible(profile->ns, tp->ns, subns))  in label_components_match()
209 		state = match_component(profile, tp, stack, start);  in label_components_match()
219 	tmp = aa_compute_fperms(profile->file.dfa, state, &cond);  in label_components_match()
220 	aa_apply_modes_to_perms(profile, &tmp);  in label_components_match()
223 		if (!aa_ns_visible(profile->ns, tp->ns, subns))  in label_components_match()
225 		state = match_component(profile, tp, stack, start);  in label_components_match()
228 		tmp = aa_compute_fperms(profile->file.dfa, state, &cond);  in label_components_match()
229 		aa_apply_modes_to_perms(profile, &tmp);  in label_components_match()
255 static int label_match(struct aa_profile *profile, struct aa_label *label,  in label_match()  argument
262 	error = label_compound_match(profile, label, stack, state, subns,  in label_match()
268 	return label_components_match(profile, label, stack, state, subns,  in label_match()
288 static int change_profile_perms(struct aa_profile *profile,  in change_profile_perms()  argument
293 	if (profile_unconfined(profile)) {  in change_profile_perms()
300 	return label_match(profile, target, stack, start, true, request, perms);  in change_profile_perms()
312 			   struct aa_profile *profile, unsigned int state)  in aa_xattrs_match()  argument
318 	int value_size = 0, ret = profile->xattr_count;  in aa_xattrs_match()
320 	if (!bprm || !profile->xattr_count)  in aa_xattrs_match()
325 	state = aa_dfa_outofband_transition(profile->xmatch, state);  in aa_xattrs_match()
328 	for (i = 0; i < profile->xattr_count; i++) {  in aa_xattrs_match()
329 		size = vfs_getxattr_alloc(&init_user_ns, d, profile->xattrs[i],  in aa_xattrs_match()
339 			state = aa_dfa_null_transition(profile->xmatch, state);  in aa_xattrs_match()
341 			state = aa_dfa_match_len(profile->xmatch, state, value,  in aa_xattrs_match()
343 			perm = dfa_user_allow(profile->xmatch, state);  in aa_xattrs_match()
350 		state = aa_dfa_outofband_transition(profile->xmatch, state);  in aa_xattrs_match()
394 	struct aa_profile *profile, *candidate = NULL;  in find_attach()  local
401 	list_for_each_entry_rcu(profile, head, base.list) {  in find_attach()
402 		if (profile->label.flags & FLAG_NULL &&  in find_attach()
403 		    &profile->label == ns_unconfined(profile->ns))  in find_attach()
417 		if (profile->xmatch) {  in find_attach()
421 			state = aa_dfa_leftmatch(profile->xmatch, DFA_START,  in find_attach()
423 			perm = dfa_user_allow(profile->xmatch, state);  in find_attach()
431 				if (bprm && profile->xattr_count) {  in find_attach()
434 					if (!aa_get_profile_not0(profile))  in find_attach()
437 					ret = aa_xattrs_match(bprm, profile,  in find_attach()
440 					aa_put_profile(profile);  in find_attach()
469 				candidate = profile;  in find_attach()
470 				candidate_len = profile->xmatch_len;  in find_attach()
474 		} else if (!strcmp(profile->base.name, name)) {  in find_attach()
479 			candidate = profile;  in find_attach()
511 struct aa_label *x_table_lookup(struct aa_profile *profile, u32 xindex,  in x_table_lookup()  argument
524 	for (*name = profile->file.trans.table[index]; !label && *name;  in x_table_lookup()
529 			new_profile = aa_find_child(profile, *name);  in x_table_lookup()
534 		label = aa_label_parse(&profile->label, *name, GFP_KERNEL,  in x_table_lookup()
557 static struct aa_label *x_to_label(struct aa_profile *profile,  in x_to_label()  argument
564 	struct aa_ns *ns = profile->ns;  in x_to_label()
575 		stack = profile->file.trans.table[xindex & AA_X_INDEX_MASK];  in x_to_label()
578 			new = x_table_lookup(profile, xindex, lookupname);  in x_to_label()
586 			new = find_attach(bprm, ns, &profile->base.profiles,  in x_to_label()
603 			new = aa_get_newest_label(&profile->label);  in x_to_label()
605 			new = aa_get_newest_label(ns_unconfined(profile->ns));  in x_to_label()
624 static struct aa_label *profile_transition(struct aa_profile *profile,  in profile_transition()  argument
631 	unsigned int state = profile->file.start;  in profile_transition()
636 	AA_BUG(!profile);  in profile_transition()
640 	error = aa_path_name(&bprm->file->f_path, profile->path_flags, buffer,  in profile_transition()
641 			     &name, &info, profile->disconnected);  in profile_transition()
643 		if (profile_unconfined(profile) ||  in profile_transition()
644 		    (profile->label.flags & FLAG_IX_ON_NAME_ERROR)) {  in profile_transition()
647 			new = aa_get_newest_label(&profile->label);  in profile_transition()
653 	if (profile_unconfined(profile)) {  in profile_transition()
654 		new = find_attach(bprm, profile->ns,  in profile_transition()
655 				  &profile->ns->base.profiles, name, &info);  in profile_transition()
661 		return aa_get_newest_label(&profile->label);  in profile_transition()
665 	state = aa_str_perms(profile->file.dfa, state, name, cond, &perms);  in profile_transition()
668 		new = x_to_label(profile, bprm, name, perms.xindex, &target,  in profile_transition()
670 		if (new && new->proxy == profile->label.proxy && info) {  in profile_transition()
679 	} else if (COMPLAIN_MODE(profile)) {  in profile_transition()
683 		new_profile = aa_new_null_profile(profile, false, name,  in profile_transition()
712 	aa_audit_file(profile, &perms, OP_EXEC, MAY_EXEC, name, target, new,  in profile_transition()
722 static int profile_onexec(struct aa_profile *profile, struct aa_label *onexec,  in profile_onexec()  argument
727 	unsigned int state = profile->file.start;  in profile_onexec()
732 	AA_BUG(!profile);  in profile_onexec()
737 	if (profile_unconfined(profile)) {  in profile_onexec()
747 	error = aa_path_name(&bprm->file->f_path, profile->path_flags, buffer,  in profile_onexec()
748 			     &xname, &info, profile->disconnected);  in profile_onexec()
750 		if (profile_unconfined(profile) ||  in profile_onexec()
751 		    (profile->label.flags & FLAG_IX_ON_NAME_ERROR)) {  in profile_onexec()
760 	state = aa_str_perms(profile->file.dfa, state, xname, cond, &perms);  in profile_onexec()
769 	state = aa_dfa_null_transition(profile->file.dfa, state);  in profile_onexec()
770 	error = change_profile_perms(profile, onexec, stack, AA_MAY_ONEXEC,  in profile_onexec()
788 	return aa_audit_file(profile, &perms, OP_EXEC, AA_MAY_ONEXEC, xname,  in profile_onexec()
800 	struct aa_profile *profile;  in handle_onexec()  local
810 		error = fn_for_each_in_ns(label, profile,  in handle_onexec()
811 				profile_onexec(profile, onexec, stack,  in handle_onexec()
815 		new = fn_label_build_in_ns(label, profile, GFP_KERNEL,  in handle_onexec()
817 				profile_transition(profile, bprm, buffer,  in handle_onexec()
822 		error = fn_for_each_in_ns(label, profile,  in handle_onexec()
823 				profile_onexec(profile, onexec, stack, bprm,  in handle_onexec()
827 		new = fn_label_build_in_ns(label, profile, GFP_KERNEL,  in handle_onexec()
828 				aa_label_merge(&profile->label, onexec,  in handle_onexec()
830 				profile_transition(profile, bprm, buffer,  in handle_onexec()
838 	error = fn_for_each_in_ns(label, profile,  in handle_onexec()
839 			aa_audit_file(profile, &nullperms, OP_CHANGE_ONEXEC,  in handle_onexec()
858 	struct aa_profile *profile;  in apparmor_bprm_creds_for_exec()  local
899 		new = fn_label_build(label, profile, GFP_KERNEL,  in apparmor_bprm_creds_for_exec()
900 				profile_transition(profile, bprm, buffer,  in apparmor_bprm_creds_for_exec()
971 	error = fn_for_each(label, profile,  in apparmor_bprm_creds_for_exec()
972 			aa_audit_file(profile, &nullperms, OP_EXEC, MAY_EXEC,  in apparmor_bprm_creds_for_exec()
988 static struct aa_label *build_change_hat(struct aa_profile *profile,  in build_change_hat()  argument
995 	if (sibling && PROFILE_IS_HAT(profile)) {  in build_change_hat()
996 		root = aa_get_profile_rcu(&profile->parent);  in build_change_hat()
997 	} else if (!sibling && !PROFILE_IS_HAT(profile)) {  in build_change_hat()
998 		root = aa_get_profile(profile);  in build_change_hat()
1008 		if (COMPLAIN_MODE(profile)) {  in build_change_hat()
1009 			hat = aa_new_null_profile(profile, true, name,  in build_change_hat()
1020 	aa_audit_file(profile, &nullperms, OP_CHANGE_HAT, AA_MAY_CHANGEHAT,  in build_change_hat()
1039 	struct aa_profile *profile, *root, *hat = NULL;  in change_hat()  local
1056 		label_for_each_in_ns(it, labels_ns(label), label, profile) {  in change_hat()
1057 			if (sibling && PROFILE_IS_HAT(profile)) {  in change_hat()
1058 				root = aa_get_profile_rcu(&profile->parent);  in change_hat()
1059 			} else if (!sibling && !PROFILE_IS_HAT(profile)) {  in change_hat()
1060 				root = aa_get_profile(profile);  in change_hat()
1069 				if (!COMPLAIN_MODE(profile))  in change_hat()
1092 	label_for_each_in_ns(it, labels_ns(label), label, profile) {  in change_hat()
1093 		if (!list_empty(&profile->base.profiles)) {  in change_hat()
1103 	label_for_each_in_ns(it, labels_ns(label), label, profile) {  in change_hat()
1111 		if (count > 1 || COMPLAIN_MODE(profile)) {  in change_hat()
1112 			aa_audit_file(profile, &nullperms, OP_CHANGE_HAT,  in change_hat()
1120 	new = fn_label_build_in_ns(label, profile, GFP_KERNEL,  in change_hat()
1121 				   build_change_hat(profile, name, sibling),  in change_hat()
1122 				   aa_get_label(&profile->label));  in change_hat()
1154 	struct aa_profile *profile;  in aa_change_hat()  local
1252 	fn_for_each_in_ns(label, profile,  in aa_change_hat()
1253 		aa_audit_file(profile, &perms, OP_CHANGE_HAT,  in aa_change_hat()
1262 					struct aa_profile *profile,  in change_profile_perms_wrapper()  argument
1270 		error = change_profile_perms(profile, target, stack, request,  in change_profile_perms_wrapper()
1271 					     profile->file.start, perms);  in change_profile_perms_wrapper()
1273 		error = aa_audit_file(profile, perms, op, request, name,  in change_profile_perms_wrapper()
1297 	struct aa_profile *profile;  in aa_change_profile()  local
1378 	error = fn_for_each_in_ns(label, profile,  in aa_change_profile()
1380 						     profile, target, stack,  in aa_change_profile()
1391 	if (error && !fn_for_each_in_ns(label, profile,  in aa_change_profile()
1392 					COMPLAIN_MODE(profile)))  in aa_change_profile()
1407 		new = fn_label_build_in_ns(label, profile, GFP_KERNEL,  in aa_change_profile()
1409 					   aa_get_label(&profile->label));  in aa_change_profile()
1449 	error = fn_for_each_in_ns(label, profile,  in aa_change_profile()
1450 			aa_audit_file(profile, &perms, op, request, auditname,  in aa_change_profile()