net/dccp/feat.c

636 	struct list_head *fn = dreq ? &dreq->dreq_featneg : &dp->dccps_featneg;
642 	list_for_each_entry_safe_reverse(pos, next, fn, node) {
692  * @fn: feature-negotiation list to register with
699 static int __feat_register_nn(struct list_head *fn, u8 feat,
712 	return dccp_feat_push_change(fn, feat, 1, mandatory, &fval);
717  * @fn: feature-negotiation list to register with
724 static int __feat_register_sp(struct list_head *fn, u8 feat, u8 is_local,
740 	if (dccp_feat_push_change(fn, feat, is_local, mandatory, &fval)) {
807 	struct list_head *fn = &dccp_sk(sk)->dccps_featneg;
821 	entry = dccp_feat_list_lookup(fn, feat, 1);
830 	return dccp_feat_push_change(fn, feat, 1, 0, &fval);
940  * @fn: feature-negotiation list to update
946 static int dccp_feat_propagate_ccid(struct list_head *fn, u8 id, bool is_local)
953 			rc = __feat_register_sp(fn, table[i].dependent_feat,
958 			rc = __feat_register_nn(fn, table[i].dependent_feat,
974 	struct list_head *fn = &dp->dccps_featneg;
987 	list_for_each_entry(entry, fn, node)
991 		if (ccids[i] > 0 && dccp_feat_propagate_ccid(fn, ccids[i], i))
993 	dccp_feat_print_fnlist(fn);
1006 	struct list_head *fn = &dreq->dreq_featneg;
1011 		entry = dccp_feat_list_lookup(fn, DCCPF_CCID, is_local);
1018 		if (dccp_feat_propagate_ccid(fn, ccid, is_local))
1099  * @fn: feature-negotiation list to update
1107 static u8 dccp_feat_change_recv(struct list_head *fn, u8 is_mandatory, u8 opt,
1133 		return dccp_feat_push_confirm(fn, feat, local, &fval);
1139 	entry = dccp_feat_list_lookup(fn, feat, local);
1169 		return dccp_feat_push_confirm(fn, feat, local, &fval);
1201 		return dccp_push_empty_confirm(fn, feat, local);
1210  * @fn: feature-negotiation list to update
1218 static u8 dccp_feat_confirm_recv(struct list_head *fn, u8 is_mandatory, u8 opt,
1223 	struct dccp_feat_entry *entry = dccp_feat_list_lookup(fn, feat, local);
1318 	struct list_head *fn = &dccp_sk(sk)->dccps_featneg;
1349 		if (dccp_feat_push_confirm(fn, feat, local, &fval) ||
1357 		entry = dccp_feat_list_lookup(fn, feat, local);
1385 		return dccp_push_empty_confirm(fn, feat, local);
1408 	struct list_head *fn = dreq ? &dreq->dreq_featneg : &dp->dccps_featneg;
1422 			return dccp_feat_change_recv(fn, mandatory, opt, feat,
1426 			return dccp_feat_confirm_recv(fn, mandatory, opt, feat,
1455 	struct list_head *fn = &dccp_sk(sk)->dccps_featneg;
1464 	rc = __feat_register_nn(fn, DCCPF_SEQUENCE_WINDOW, 0,
1472 	rc = __feat_register_sp(fn, DCCPF_SHORT_SEQNOS, true, true, &off, 1);
1477 	rc = __feat_register_sp(fn, DCCPF_ECN_INCAPABLE, true, true, &on, 1);
1498 	rc = __feat_register_sp(fn, DCCPF_CCID, true, false, tx.val, tx.len);
1502 	rc = __feat_register_sp(fn, DCCPF_CCID, false, false, rx.val, rx.len);