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/* $OpenBSD: slaacd.h,v 1.38 2022/07/12 16:55:00 florian Exp $ */
/*
* Copyright (c) 2017 Florian Obser <florian@openbsd.org>
* Copyright (c) 2004 Esben Norby <norby@openbsd.org>
* Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#define _PATH_LOCKFILE "/dev/slaacd.lock"
#define _PATH_SLAACD_SOCKET "/dev/slaacd.sock"
#define SLAACD_USER "_slaacd"
#define SLAACD_RTA_LABEL "slaacd"
#define SLAACD_SOIIKEY_LEN 16
#define MAX_RDNS_COUNT 8 /* max nameserver in a RTM_PROPOSAL */
#define IMSG_DATA_SIZE(imsg) ((imsg).hdr.len - IMSG_HEADER_SIZE)
struct imsgev {
struct imsgbuf ibuf;
void (*handler)(int, short, void *);
struct event ev;
short events;
};
enum imsg_type {
IMSG_NONE,
#ifndef SMALL
IMSG_CTL_LOG_VERBOSE,
IMSG_CTL_SHOW_INTERFACE_INFO,
IMSG_CTL_SHOW_INTERFACE_INFO_RA,
IMSG_CTL_SHOW_INTERFACE_INFO_RA_PREFIX,
IMSG_CTL_SHOW_INTERFACE_INFO_RA_RDNS,
IMSG_CTL_SHOW_INTERFACE_INFO_ADDR_PROPOSALS,
IMSG_CTL_SHOW_INTERFACE_INFO_ADDR_PROPOSAL,
IMSG_CTL_SHOW_INTERFACE_INFO_DFR_PROPOSALS,
IMSG_CTL_SHOW_INTERFACE_INFO_DFR_PROPOSAL,
IMSG_CTL_SHOW_INTERFACE_INFO_RDNS_PROPOSALS,
IMSG_CTL_SHOW_INTERFACE_INFO_RDNS_PROPOSAL,
IMSG_CTL_END,
#endif /* SMALL */
IMSG_PROPOSE_RDNS,
IMSG_REPROPOSE_RDNS,
IMSG_CTL_SEND_SOLICITATION,
IMSG_SOCKET_IPC,
IMSG_OPEN_ICMP6SOCK,
IMSG_ICMP6SOCK,
IMSG_ROUTESOCK,
IMSG_CONTROLFD,
IMSG_STARTUP,
IMSG_UPDATE_IF,
IMSG_REMOVE_IF,
IMSG_RA,
IMSG_CONFIGURE_ADDRESS,
IMSG_WITHDRAW_ADDRESS,
IMSG_DEL_ADDRESS,
IMSG_DEL_ROUTE,
IMSG_CONFIGURE_DFR,
IMSG_WITHDRAW_DFR,
IMSG_DUP_ADDRESS,
};
enum rpref {
LOW,
MEDIUM,
HIGH,
};
#ifndef SMALL
struct ctl_engine_info {
uint32_t if_index;
int running;
int autoconf;
int temporary;
int soii;
struct ether_addr hw_address;
struct sockaddr_in6 ll_address;
};
struct ctl_engine_info_ra {
struct sockaddr_in6 from;
struct timespec when;
struct timespec uptime;
uint8_t curhoplimit;
int managed;
int other;
char rpref[sizeof("MEDIUM")];
uint16_t router_lifetime; /* in seconds */
uint32_t reachable_time; /* in milliseconds */
uint32_t retrans_time; /* in milliseconds */
uint32_t mtu;
};
struct ctl_engine_info_ra_prefix {
struct in6_addr prefix;
uint8_t prefix_len;
int onlink;
int autonomous;
uint32_t vltime;
uint32_t pltime;
};
struct ctl_engine_info_ra_rdns {
uint32_t lifetime;
struct in6_addr rdns;
};
struct ctl_engine_info_address_proposal {
int64_t id;
char state[sizeof("PROPOSAL_NEARLY_EXPIRED")];
time_t next_timeout;
struct timespec when;
struct timespec uptime;
struct sockaddr_in6 addr;
struct in6_addr prefix;
int temporary;
uint8_t prefix_len;
uint32_t vltime;
uint32_t pltime;
};
struct ctl_engine_info_dfr_proposal {
int64_t id;
char state[sizeof("PROPOSAL_NEARLY_EXPIRED")];
time_t next_timeout;
struct timespec when;
struct timespec uptime;
struct sockaddr_in6 addr;
uint32_t router_lifetime;
char rpref[sizeof("MEDIUM")];
};
struct ctl_engine_info_rdns_proposal {
int64_t id;
char state[sizeof("PROPOSAL_NEARLY_EXPIRED")];
time_t next_timeout;
struct timespec when;
struct timespec uptime;
struct sockaddr_in6 from;
uint32_t rdns_lifetime;
int rdns_count;
struct in6_addr rdns[MAX_RDNS_COUNT];
};
#endif /* SMALL */
struct imsg_propose_rdns {
uint32_t if_index;
int rdomain;
int rdns_count;
struct in6_addr rdns[MAX_RDNS_COUNT];
};
struct imsg_ifinfo {
uint32_t if_index;
int rdomain;
int running;
int link_state;
int autoconf;
int temporary;
int soii;
struct ether_addr hw_address;
struct sockaddr_in6 ll_address;
uint8_t soiikey[SLAACD_SOIIKEY_LEN];
};
struct imsg_del_addr {
uint32_t if_index;
struct sockaddr_in6 addr;
};
struct imsg_del_route {
uint32_t if_index;
struct sockaddr_in6 gw;
};
struct imsg_ra {
uint32_t if_index;
struct sockaddr_in6 from;
ssize_t len;
uint8_t packet[1500];
};
struct imsg_dup_addr {
uint32_t if_index;
struct sockaddr_in6 addr;
};
/* slaacd.c */
void imsg_event_add(struct imsgev *);
int imsg_compose_event(struct imsgev *, uint16_t, uint32_t, pid_t,
int, void *, uint16_t);
#ifndef SMALL
const char *sin6_to_str(struct sockaddr_in6 *);
#else
#define sin6_to_str(x...) ""
#endif /* SMALL */
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