174 lines
5.5 KiB
C
174 lines
5.5 KiB
C
/* Definitions for decoded PFCP IEs, to be used by the auto-generated pfcp_ies_auto.c. */
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/*
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* (C) 2021-2022 by sysmocom - s.f.m.c. GmbH <info@sysmocom.de>
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* All Rights Reserved.
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*
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* Author: Neels Janosch Hofmeyr <nhofmeyr@sysmocom.de>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#pragma once
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#include <osmocom/core/socket.h>
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#include <osmocom/pfcp/pfcp_proto.h>
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/* Common pattern used in various PFCP IEs. */
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struct osmo_pfcp_ip_addrs {
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bool v4_present;
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struct osmo_sockaddr v4;
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bool v6_present;
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struct osmo_sockaddr v6;
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};
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int osmo_pfcp_ip_addrs_set(struct osmo_pfcp_ip_addrs *dst, const struct osmo_sockaddr *addr);
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int osmo_pfcp_ip_addrs_to_str_buf(char *buf, size_t buflen, const struct osmo_pfcp_ip_addrs *addrs);
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char *osmo_pfcp_ip_addrs_to_str_c(void *ctx, const struct osmo_pfcp_ip_addrs *addrs);
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/* 3GPP TS 29.244 8.2.38, IETF RFC 1035 3.1 */
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struct osmo_pfcp_ie_node_id {
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enum osmo_pfcp_node_id_type type;
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union {
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struct osmo_sockaddr ip;
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/* Fully qualified domain name in "dot" notation ("host.example.com") */
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char fqdn[254];
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};
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};
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int osmo_pfcp_ie_node_id_to_str_buf(char *buf, size_t buflen, const struct osmo_pfcp_ie_node_id *node_id);
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char *osmo_pfcp_ie_node_id_to_str_c(void *ctx, const struct osmo_pfcp_ie_node_id *node_id);
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bool osmo_pfcp_bits_get(const uint8_t *bits, unsigned int bitpos);
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void osmo_pfcp_bits_set(uint8_t *bits, unsigned int bitpos, bool val);
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int osmo_pfcp_bits_to_str_buf(char *buf, size_t buflen, const uint8_t *bits, const struct value_string *bit_strs);
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char *osmo_pfcp_bits_to_str_c(void *ctx, const uint8_t *bits, const struct value_string *bit_str);
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/* 3GPP TS 29.244 8.2.25
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* Usage:
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* struct osmo_pfcp_ie_up_function_features x;
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* osmo_pfcp_bits_set(x.bits, OSMO_PFCP_UP_FEAT_BUNDL, true);
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* if (osmo_pfcp_bits_get(x.bits, OSMO_PFCP_UP_FEAT_BUNDL))
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* foo();
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* printf("%s\n", osmo_pfcp_bits_to_str_c(x.bits, osmo_pfcp_up_feature_strs));
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*/
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struct osmo_pfcp_ie_up_function_features {
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uint8_t bits[6];
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};
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/* 3GPP TS 29.244 8.2.58
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* struct osmo_pfcp_ie_cp_function_features x;
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* osmo_pfcp_bits_set(x.bits, OSMO_PFCP_CP_FEAT_BUNDL, true);
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* if (osmo_pfcp_bits_get(x.bits, OSMO_PFCP_CP_FEAT_BUNDL))
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* foo();
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* printf("%s\n", osmo_pfcp_bits_to_str_c(x.bits, osmo_pfcp_cp_feature_strs));
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*/
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struct osmo_pfcp_ie_cp_function_features {
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uint8_t bits[1];
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};
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/* 3GPP TS 29.244 8.2.37 */
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struct osmo_pfcp_ie_f_seid {
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uint64_t seid;
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struct osmo_pfcp_ip_addrs ip_addr;
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};
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void osmo_pfcp_ie_f_seid_set(struct osmo_pfcp_ie_f_seid *f_seid, uint64_t seid,
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const struct osmo_sockaddr *remote_addr);
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int osmo_pfcp_ie_f_seid_cmp(const struct osmo_pfcp_ie_f_seid *a, const struct osmo_pfcp_ie_f_seid *b);
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/* 3GPP TS 29.244 8.3.2 */
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struct osmo_pfcp_ie_f_teid {
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bool choose_flag;
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union {
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struct {
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uint32_t teid;
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struct osmo_pfcp_ip_addrs ip_addr;
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} fixed;
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struct {
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bool ipv4_addr;
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bool ipv6_addr;
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bool choose_id_present;
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uint8_t choose_id;
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} choose;
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};
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};
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/* 3GPP TS 29.244 8.2.62 */
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struct osmo_pfcp_ie_ue_ip_address {
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bool chv6;
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bool chv4;
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bool ip_is_destination;
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struct osmo_pfcp_ip_addrs ip_addr;
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bool ipv6_prefix_delegation_bits_present;
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uint8_t ipv6_prefix_delegation_bits;
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bool ipv6_prefix_length_present;
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uint8_t ipv6_prefix_length;
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};
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/* 3GPP TS 29.244 8.2.26.
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* Usage:
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* struct osmo_pfcp_ie_apply_action x;
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* osmo_pfcp_bits_set(x.bits, OSMO_PFCP_APPLY_ACTION_FORW, true);
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* if (osmo_pfcp_bits_get(x.bits, OSMO_PFCP_APPLY_ACTION_FORW))
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* foo();
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* printf("%s\n", osmo_pfcp_bits_to_str_c(x.bits, osmo_pfcp_apply_action_strs));
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*/
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struct osmo_pfcp_ie_apply_action {
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uint8_t bits[2];
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};
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struct osmo_pfcp_ie_network_inst {
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/* A domain name may have up to 253 characters; plus nul. */
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char str[253+1];
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};
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struct osmo_pfcp_ie_activate_predefined_rules {
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char str[256];
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};
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/* 3GPP TS 29.244 8.2.56 */
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struct osmo_pfcp_ie_outer_header_creation {
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/* desc_bits Usage:
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* osmo_pfcp_bits_set(x.desc_bits, OSMO_PFCP_OUTER_HEADER_CREATION_GTP_U_UDP_IPV4, true);
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* if (osmo_pfcp_bits_get(x.desc_bits, OSMO_PFCP_OUTER_HEADER_CREATION_GTP_U_UDP_IPV4))
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* foo();
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* printf("%s\n", osmo_pfcp_bits_to_str_c(x.desc_bits, osmo_pfcp_outer_header_creation_strs));
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*/
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uint8_t desc_bits[2];
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bool teid_present;
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uint32_t teid;
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struct osmo_pfcp_ip_addrs ip_addr;
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bool port_number_present;
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uint16_t port_number;
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bool c_tag_present;
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uint32_t c_tag;
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bool s_tag_present;
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uint32_t s_tag;
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};
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int osmo_pfcp_ie_outer_header_creation_to_str_buf(char *buf, size_t buflen,
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const struct osmo_pfcp_ie_outer_header_creation *ohc);
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char *osmo_pfcp_ie_outer_header_creation_to_str_c(void *ctx, const struct osmo_pfcp_ie_outer_header_creation *ohc);
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/* 3GPP TS 29.244 8.2.64. */
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struct osmo_pfcp_ie_outer_header_removal {
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enum osmo_pfcp_outer_header_removal_desc desc;
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bool gtp_u_extension_header_del_present;
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uint8_t gtp_u_extension_header_del_bits[1];
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};
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