_dhcpv6.h

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/*
 * SPDX-FileCopyrightText: 2018 Freie Universität Berlin
 * SPDX-License-Identifier: LGPL-2.1-only
 */
 
#pragma once

 
#include <stdint.h>
 
#include "byteorder.h"
#include "net/ipv6/addr.h"
 
#ifdef __cplusplus
extern "C" {
#endif

#define DHCPV6_ALL_RELAY_AGENTS_AND_SERVERS { 0xff, 0x02, 0x00, 0x00, \
                                              0x00, 0x00, 0x00, 0x00, \
                                              0x00, 0x00, 0x00, 0x00, \
                                              0x00, 0x01, 0x00, 0x02  \
                                            }


#define DHCPV6_SOL_MAX_DELAY        (1U)    
#define DHCPV6_SOL_TIMEOUT          (1U)    
#define DHCPV6_SOL_MAX_RT           (3600U) 
 
#define DHCPV6_REQ_TIMEOUT          (1U)    
#define DHCPV6_REQ_MAX_RT           (30U)   
#define DHCPV6_REQ_MAX_RC           (10U)   
 
#define DHCPV6_REN_TIMEOUT          (10U)   
#define DHCPV6_REN_MAX_RT           (600U)  
 
#define DHCPV6_REB_TIMEOUT          (10U)   
#define DHCPV6_REB_MAX_RT           (600U)  
 
#define DHCPV6_INF_MAX_DELAY        (1U)    
#define DHCPV6_INF_TIMEOUT          (1U)    
#define DHCPV6_INF_MAX_RT           (3600U) 
 
#define DHCPV6_IRT_DEFAULT          (86400U) 
#define DHCPV6_IRT_MINIMUM          (600U)   

 
#define DHCPV6_DUID_MAX_LEN         (128U)  

typedef struct __attribute__((packed)) {
    uint8_t type;   
    uint8_t tid[3]; 
} dhcpv6_msg_t;

typedef struct __attribute__((packed)) {
    uint8_t type;       
    uint8_t hop_count;  
    ipv6_addr_t link_address;
    ipv6_addr_t peer_address;
} dhcpv6_relay_msg_t;

typedef union {
    uint8_t u8[DHCPV6_DUID_MAX_LEN];    
    dhcpv6_duid_l2_t duid_l2;           
} dhcpv6_duid_t;


typedef struct __attribute__((packed)) {
    network_uint16_t type;      
    network_uint16_t len;       
    uint8_t data[];             
} dhcpv6_opt_t;

typedef struct __attribute__((packed)) {
    network_uint16_t type;      
    network_uint16_t len;       
    uint8_t duid[];             
} dhcpv6_opt_duid_t;

typedef struct __attribute__((packed)) {
    network_uint16_t type;          
    network_uint16_t len;           
    network_uint32_t ia_id;         
    network_uint32_t t1;            
    network_uint32_t t2;            
    uint8_t opts[];                 
} dhcpv6_opt_ia_na_t;

typedef struct __attribute__((packed)) {
    network_uint16_t type;          
    network_uint16_t len;           
    ipv6_addr_t addr;                
    network_uint32_t pref;          
    network_uint32_t valid;         
    uint8_t opts[];                 
} dhcpv6_opt_iaaddr_t;

typedef struct __attribute__((packed)) {
    network_uint16_t type;          
    network_uint16_t len;           
    network_uint16_t opt_codes[];   
} dhcpv6_opt_oro_t;

typedef struct __attribute__((packed)) {
    network_uint16_t type;          
    network_uint16_t len;           
    uint8_t value;                  
} dhcpv6_opt_pref_t;


typedef struct __attribute__((packed)) {
    network_uint16_t type;          
    network_uint16_t len;           
    network_uint16_t elapsed_time;
} dhcpv6_opt_elapsed_time_t;

typedef struct __attribute__((packed)) {
    network_uint16_t type;          
    network_uint16_t len;           
    uint16_t msg[];                 
} dhcpv6_opt_relay_msg_t;

typedef struct __attribute__((packed)) {
    network_uint16_t type;          
    network_uint16_t len;           
    network_uint16_t code;          
    char msg[];                     
} dhcpv6_opt_status_t;

typedef struct __attribute__((packed)) {
    network_uint16_t type;          
    network_uint16_t len;           
    uint8_t iid[];                  
} dhcpv6_opt_iid_t;

typedef struct __attribute__((packed)) {
    network_uint16_t type;          
    network_uint16_t len;           
    ipv6_addr_t dns_rns[];          
} dhcpv6_opt_dns_rns_t;

typedef struct __attribute__((packed)) {
    network_uint16_t type;          
    network_uint16_t len;           
    network_uint32_t ia_id;         
    network_uint32_t t1;            
    network_uint32_t t2;            
    uint8_t opts[];                 
} dhcpv6_opt_ia_pd_t;

typedef struct __attribute__((packed)) {
    network_uint16_t type;          
    network_uint16_t len;           
    network_uint32_t pref;          
    network_uint32_t valid;         
    uint8_t pfx_len;                
    ipv6_addr_t pfx;                
    uint8_t opts[];                 
} dhcpv6_opt_iapfx_t;

typedef struct __attribute__((packed)) {
    network_uint16_t type;          
    network_uint16_t len;           
    network_uint32_t value;         
} dhcpv6_opt_irt_t;

typedef struct __attribute__((packed)) {
    network_uint16_t type;          
    network_uint16_t len;           
    network_uint32_t value;         
} dhcpv6_opt_smr_t;

typedef struct __attribute__((packed)) {
    network_uint16_t type;          
    network_uint16_t len;           
    network_uint32_t value;         
} dhcpv6_opt_imr_t;

typedef struct __attribute__((packed)) {
    network_uint16_t type;  
    network_uint16_t len;   
    char mud_string[];       
} dhcpv6_opt_mud_url_t;

void dhcpv6_client_dns_rns_conf(const dhcpv6_opt_dns_rns_t *opt,
                                uint16_t netif);
 
#ifdef __cplusplus
}
#endif