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