101 static inline unsigned int match_component(struct aa_profile *profile,  in match_component()  argument
108 		state = aa_dfa_match(profile->file.dfa, state, "&");  in match_component()
109 	if (profile->ns == tp->ns)  in match_component()
110 		return aa_dfa_match(profile->file.dfa, state, tp->base.hname);  in match_component()
113 	ns_name = aa_ns_name(profile->ns, tp->ns, true);  in match_component()
114 	state = aa_dfa_match_len(profile->file.dfa, state, ":", 1);  in match_component()
115 	state = aa_dfa_match(profile->file.dfa, state, ns_name);  in match_component()
116 	state = aa_dfa_match_len(profile->file.dfa, state, ":", 1);  in match_component()
117 	return aa_dfa_match(profile->file.dfa, state, tp->base.hname);  in match_component()
136 static int label_compound_match(struct aa_profile *profile,  in label_compound_match()  argument
147 		if (!aa_ns_visible(profile->ns, tp->ns, subns))  in label_compound_match()
149 		state = match_component(profile, tp, stack, state);  in label_compound_match()
161 		if (!aa_ns_visible(profile->ns, tp->ns, subns))  in label_compound_match()
163 		state = aa_dfa_match(profile->file.dfa, state, "//&");  in label_compound_match()
164 		state = match_component(profile, tp, false, state);  in label_compound_match()
168 	*perms = aa_compute_fperms(profile->file.dfa, state, &cond);  in label_compound_match()
169 	aa_apply_modes_to_perms(profile, perms);  in label_compound_match()
196 static int label_components_match(struct aa_profile *profile,  in label_components_match()  argument
209 		if (!aa_ns_visible(profile->ns, tp->ns, subns))  in label_components_match()
211 		state = match_component(profile, tp, stack, start);  in label_components_match()
221 	tmp = aa_compute_fperms(profile->file.dfa, state, &cond);  in label_components_match()
222 	aa_apply_modes_to_perms(profile, &tmp);  in label_components_match()
225 		if (!aa_ns_visible(profile->ns, tp->ns, subns))  in label_components_match()
227 		state = match_component(profile, tp, stack, start);  in label_components_match()
230 		tmp = aa_compute_fperms(profile->file.dfa, state, &cond);  in label_components_match()
231 		aa_apply_modes_to_perms(profile, &tmp);  in label_components_match()
257 static int label_match(struct aa_profile *profile, struct aa_label *label,  in label_match()  argument
264 	error = label_compound_match(profile, label, stack, state, subns,  in label_match()
270 	return label_components_match(profile, label, stack, state, subns,  in label_match()
290 static int change_profile_perms(struct aa_profile *profile,  in change_profile_perms()  argument
295 	if (profile_unconfined(profile)) {  in change_profile_perms()
302 	return label_match(profile, target, stack, start, true, request, perms);  in change_profile_perms()
314 			   struct aa_profile *profile, unsigned int state)  in aa_xattrs_match()  argument
320 	int value_size = 0, ret = profile->xattr_count;  in aa_xattrs_match()
322 	if (!bprm || !profile->xattr_count)  in aa_xattrs_match()
326 	state = aa_dfa_null_transition(profile->xmatch, state);  in aa_xattrs_match()
330 	for (i = 0; i < profile->xattr_count; i++) {  in aa_xattrs_match()
331 		size = vfs_getxattr_alloc(d, profile->xattrs[i], &value,  in aa_xattrs_match()
337 			state = aa_dfa_match_len(profile->xmatch, state, value,  in aa_xattrs_match()
339 			perm = dfa_user_allow(profile->xmatch, state);  in aa_xattrs_match()
346 		state = aa_dfa_null_transition(profile->xmatch, state);  in aa_xattrs_match()
390 	struct aa_profile *profile, *candidate = NULL;  in __attach_match()  local
395 	list_for_each_entry_rcu(profile, head, base.list) {  in __attach_match()
396 		if (profile->label.flags & FLAG_NULL &&  in __attach_match()
397 		    &profile->label == ns_unconfined(profile->ns))  in __attach_match()
411 		if (profile->xmatch) {  in __attach_match()
415 			state = aa_dfa_leftmatch(profile->xmatch, DFA_START,  in __attach_match()
417 			perm = dfa_user_allow(profile->xmatch, state);  in __attach_match()
425 				ret = aa_xattrs_match(bprm, profile, state);  in __attach_match()
447 				candidate = profile;  in __attach_match()
448 				candidate_len = profile->xmatch_len;  in __attach_match()
452 		} else if (!strcmp(profile->base.name, name))  in __attach_match()
457 			return profile;  in __attach_match()
482 	struct aa_profile *profile;  in find_attach()  local
485 	profile = aa_get_profile(__attach_match(bprm, name, list, info));  in find_attach()
488 	return profile ? &profile->label : NULL;  in find_attach()
504 struct aa_label *x_table_lookup(struct aa_profile *profile, u32 xindex,  in x_table_lookup()  argument
517 	for (*name = profile->file.trans.table[index]; !label && *name;  in x_table_lookup()
522 			new_profile = aa_find_child(profile, *name);  in x_table_lookup()
527 		label = aa_label_parse(&profile->label, *name, GFP_ATOMIC,  in x_table_lookup()
550 static struct aa_label *x_to_label(struct aa_profile *profile,  in x_to_label()  argument
557 	struct aa_ns *ns = profile->ns;  in x_to_label()
568 		stack = profile->file.trans.table[xindex & AA_X_INDEX_MASK];  in x_to_label()
571 			new = x_table_lookup(profile, xindex, lookupname);  in x_to_label()
579 			new = find_attach(bprm, ns, &profile->base.profiles,  in x_to_label()
596 			new = aa_get_newest_label(&profile->label);  in x_to_label()
598 			new = aa_get_newest_label(ns_unconfined(profile->ns));  in x_to_label()
617 static struct aa_label *profile_transition(struct aa_profile *profile,  in profile_transition()  argument
626 	unsigned int state = profile->file.start;  in profile_transition()
631 	AA_BUG(!profile);  in profile_transition()
635 	error = aa_path_name(&bprm->file->f_path, profile->path_flags, buffer,  in profile_transition()
636 			     &name, &info, profile->disconnected);  in profile_transition()
638 		if (profile_unconfined(profile) ||  in profile_transition()
639 		    (profile->label.flags & FLAG_IX_ON_NAME_ERROR)) {  in profile_transition()
642 			new = aa_get_newest_label(&profile->label);  in profile_transition()
648 	if (profile_unconfined(profile)) {  in profile_transition()
649 		new = find_attach(bprm, profile->ns,  in profile_transition()
650 				  &profile->ns->base.profiles, name, &info);  in profile_transition()
656 		return aa_get_newest_label(&profile->label);  in profile_transition()
660 	state = aa_str_perms(profile->file.dfa, state, name, cond, &perms);  in profile_transition()
663 		new = x_to_label(profile, bprm, name, perms.xindex, &target,  in profile_transition()
665 		if (new && new->proxy == profile->label.proxy && info) {  in profile_transition()
689 	} else if (COMPLAIN_MODE(profile)) {  in profile_transition()
699 			new_profile = aa_new_null_profile(profile, false, n,  in profile_transition()
733 	aa_audit_file(profile, &perms, OP_EXEC, MAY_EXEC, name, target, new,  in profile_transition()
743 static int profile_onexec(struct aa_profile *profile, struct aa_label *onexec,  in profile_onexec()  argument
748 	unsigned int state = profile->file.start;  in profile_onexec()
753 	AA_BUG(!profile);  in profile_onexec()
758 	if (profile_unconfined(profile)) {  in profile_onexec()
768 	error = aa_path_name(&bprm->file->f_path, profile->path_flags, buffer,  in profile_onexec()
769 			     &xname, &info, profile->disconnected);  in profile_onexec()
771 		if (profile_unconfined(profile) ||  in profile_onexec()
772 		    (profile->label.flags & FLAG_IX_ON_NAME_ERROR)) {  in profile_onexec()
781 	state = aa_str_perms(profile->file.dfa, state, xname, cond, &perms);  in profile_onexec()
790 	state = aa_dfa_null_transition(profile->file.dfa, state);  in profile_onexec()
791 	error = change_profile_perms(profile, onexec, stack, AA_MAY_ONEXEC,  in profile_onexec()
809 	return aa_audit_file(profile, &perms, OP_EXEC, AA_MAY_ONEXEC, xname,  in profile_onexec()
821 	struct aa_profile *profile;  in handle_onexec()  local
831 		error = fn_for_each_in_ns(label, profile,  in handle_onexec()
832 				profile_onexec(profile, onexec, stack,  in handle_onexec()
836 		new = fn_label_build_in_ns(label, profile, GFP_ATOMIC,  in handle_onexec()
838 				profile_transition(profile, bprm, buffer,  in handle_onexec()
843 		error = fn_for_each_in_ns(label, profile,  in handle_onexec()
844 				profile_onexec(profile, onexec, stack, bprm,  in handle_onexec()
848 		new = fn_label_build_in_ns(label, profile, GFP_ATOMIC,  in handle_onexec()
849 				aa_label_merge(&profile->label, onexec,  in handle_onexec()
851 				profile_transition(profile, bprm, buffer,  in handle_onexec()
859 	error = fn_for_each_in_ns(label, profile,  in handle_onexec()
860 			aa_audit_file(profile, &nullperms, OP_CHANGE_ONEXEC,  in handle_onexec()
879 	struct aa_profile *profile;  in apparmor_bprm_set_creds()  local
916 		new = fn_label_build(label, profile, GFP_ATOMIC,  in apparmor_bprm_set_creds()
917 				profile_transition(profile, bprm, buffer,  in apparmor_bprm_set_creds()
987 	error = fn_for_each(label, profile,  in apparmor_bprm_set_creds()
988 			aa_audit_file(profile, &nullperms, OP_EXEC, MAY_EXEC,  in apparmor_bprm_set_creds()
1005 static struct aa_label *build_change_hat(struct aa_profile *profile,  in build_change_hat()  argument
1012 	if (sibling && PROFILE_IS_HAT(profile)) {  in build_change_hat()
1013 		root = aa_get_profile_rcu(&profile->parent);  in build_change_hat()
1014 	} else if (!sibling && !PROFILE_IS_HAT(profile)) {  in build_change_hat()
1015 		root = aa_get_profile(profile);  in build_change_hat()
1025 		if (COMPLAIN_MODE(profile)) {  in build_change_hat()
1026 			hat = aa_new_null_profile(profile, true, name,  in build_change_hat()
1037 	aa_audit_file(profile, &nullperms, OP_CHANGE_HAT, AA_MAY_CHANGEHAT,  in build_change_hat()
1056 	struct aa_profile *profile, *root, *hat = NULL;  in change_hat()  local
1073 		label_for_each_in_ns(it, labels_ns(label), label, profile) {  in change_hat()
1074 			if (sibling && PROFILE_IS_HAT(profile)) {  in change_hat()
1075 				root = aa_get_profile_rcu(&profile->parent);  in change_hat()
1076 			} else if (!sibling && !PROFILE_IS_HAT(profile)) {  in change_hat()
1077 				root = aa_get_profile(profile);  in change_hat()
1086 				if (!COMPLAIN_MODE(profile))  in change_hat()
1109 	label_for_each_in_ns(it, labels_ns(label), label, profile) {  in change_hat()
1110 		if (!list_empty(&profile->base.profiles)) {  in change_hat()
1120 	label_for_each_in_ns(it, labels_ns(label), label, profile) {  in change_hat()
1128 		if (count > 1 || COMPLAIN_MODE(profile)) {  in change_hat()
1129 			aa_audit_file(profile, &nullperms, OP_CHANGE_HAT,  in change_hat()
1137 	new = fn_label_build_in_ns(label, profile, GFP_KERNEL,  in change_hat()
1138 				   build_change_hat(profile, name, sibling),  in change_hat()
1139 				   aa_get_label(&profile->label));  in change_hat()
1171 	struct aa_profile *profile;  in aa_change_hat()  local
1269 	fn_for_each_in_ns(label, profile,  in aa_change_hat()
1270 		aa_audit_file(profile, &perms, OP_CHANGE_HAT,  in aa_change_hat()
1279 					struct aa_profile *profile,  in change_profile_perms_wrapper()  argument
1287 		error = change_profile_perms(profile, target, stack, request,  in change_profile_perms_wrapper()
1288 					     profile->file.start, perms);  in change_profile_perms_wrapper()
1290 		error = aa_audit_file(profile, perms, op, request, name,  in change_profile_perms_wrapper()
1314 	struct aa_profile *profile;  in aa_change_profile()  local
1396 	error = fn_for_each_in_ns(label, profile,  in aa_change_profile()
1398 						     profile, target, stack,  in aa_change_profile()
1409 	if (error && !fn_for_each_in_ns(label, profile,  in aa_change_profile()
1410 					COMPLAIN_MODE(profile)))  in aa_change_profile()
1425 		new = fn_label_build_in_ns(label, profile, GFP_KERNEL,  in aa_change_profile()
1427 					   aa_get_label(&profile->label));  in aa_change_profile()
1464 	error = fn_for_each_in_ns(label, profile,  in aa_change_profile()
1465 			aa_audit_file(profile, &perms, op, request, auditname,  in aa_change_profile()