1 /* $OpenBSD: rad.h,v 1.17 2019/03/02 03:40:45 pamela Exp $ */ 2 3 /* 4 * Copyright (c) 2018 Florian Obser <florian@openbsd.org> 5 * Copyright (c) 2004 Esben Norby <norby@openbsd.org> 6 * Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org> 7 * 8 * Permission to use, copy, modify, and distribute this software for any 9 * purpose with or without fee is hereby granted, provided that the above 10 * copyright notice and this permission notice appear in all copies. 11 * 12 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 13 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 14 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 15 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 16 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 17 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 18 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 19 */ 20 21 #define CONF_FILE "/etc/rad.conf" 22 #define RAD_SOCKET "/var/run/rad.sock" 23 #define RAD_USER "_rad" 24 25 #define OPT_VERBOSE 0x00000001 26 #define OPT_VERBOSE2 0x00000002 27 #define OPT_NOACTION 0x00000004 28 29 30 #define MAX_RTR_ADV_INTERVAL 600 31 #define MIN_RTR_ADV_INTERVAL 200 32 #define MAX_SEARCH 1025 /* same as MAXDNAME in arpa/nameser.h */ 33 #define DEFAULT_RDNS_LIFETIME 600 * 1.5 34 35 #define IMSG_DATA_SIZE(imsg) ((imsg).hdr.len - IMSG_HEADER_SIZE) 36 37 enum { 38 PROC_MAIN, 39 PROC_ENGINE, 40 PROC_FRONTEND 41 } rad_process; 42 43 static const char * const log_procnames[] = { 44 "main", 45 "engine", 46 "frontend", 47 }; 48 49 struct imsgev { 50 struct imsgbuf ibuf; 51 void (*handler)(int, short, void *); 52 struct event ev; 53 short events; 54 }; 55 56 enum imsg_type { 57 IMSG_NONE, 58 IMSG_CTL_LOG_VERBOSE, 59 IMSG_CTL_RELOAD, 60 IMSG_RECONF_CONF, 61 IMSG_RECONF_RA_IFACE, 62 IMSG_RECONF_RA_AUTOPREFIX, 63 IMSG_RECONF_RA_PREFIX, 64 IMSG_RECONF_RA_RDNSS, 65 IMSG_RECONF_RA_DNSSL, 66 IMSG_RECONF_END, 67 IMSG_ICMP6SOCK, 68 IMSG_ROUTESOCK, 69 IMSG_CONTROLFD, 70 IMSG_STARTUP, 71 IMSG_STARTUP_DONE, 72 IMSG_RA_RS, 73 IMSG_SEND_RA, 74 IMSG_UPDATE_IF, 75 IMSG_REMOVE_IF, 76 IMSG_SOCKET_IPC 77 }; 78 79 /* RFC 8106 */ 80 struct ra_rdnss_conf { 81 SIMPLEQ_ENTRY(ra_rdnss_conf) entry; 82 struct in6_addr rdnss; 83 }; 84 struct ra_dnssl_conf { 85 SIMPLEQ_ENTRY(ra_dnssl_conf) entry; 86 char search[MAX_SEARCH]; 87 }; 88 89 /* RFC 4861 Sections 4.2 and 4.6.4 */ 90 struct ra_options_conf { 91 int dfr; /* is default router? */ 92 int cur_hl; /* current hop limit */ 93 int m_flag; /* managed address conf flag */ 94 int o_flag; /* other conf flag */ 95 int router_lifetime; /* default router lifetime */ 96 uint32_t reachable_time; 97 uint32_t retrans_timer; 98 uint32_t mtu; 99 uint32_t rdns_lifetime; 100 SIMPLEQ_HEAD(, ra_rdnss_conf) ra_rdnss_list; 101 int rdnss_count; 102 SIMPLEQ_HEAD(, ra_dnssl_conf) ra_dnssl_list; 103 int dnssl_len; 104 }; 105 106 /* RFC 4861 Section 4.6.2 */ 107 struct ra_prefix_conf { 108 SIMPLEQ_ENTRY(ra_prefix_conf) entry; 109 struct in6_addr prefix; /* prefix */ 110 int prefixlen; /* prefix length */ 111 uint32_t vltime; /* valid lifetime */ 112 uint32_t pltime; /* prefered lifetime */ 113 int lflag; /* on-link flag*/ 114 int aflag; /* autonom. addr flag */ 115 }; 116 117 struct ra_iface_conf { 118 SIMPLEQ_ENTRY(ra_iface_conf) entry; 119 struct ra_options_conf ra_options; 120 struct ra_prefix_conf *autoprefix; 121 SIMPLEQ_HEAD(ra_prefix_conf_head, 122 ra_prefix_conf) ra_prefix_list; 123 char name[IF_NAMESIZE]; 124 }; 125 126 struct rad_conf { 127 struct ra_options_conf ra_options; 128 SIMPLEQ_HEAD(ra_iface_conf_head, ra_iface_conf) ra_iface_list; 129 }; 130 131 struct imsg_ra_rs { 132 uint32_t if_index; 133 struct sockaddr_in6 from; 134 ssize_t len; 135 uint8_t packet[1500]; 136 }; 137 138 struct imsg_send_ra { 139 uint32_t if_index; 140 struct sockaddr_in6 to; 141 }; 142 143 extern uint32_t cmd_opts; 144 145 /* rad.c */ 146 void main_imsg_compose_frontend(int, pid_t, void *, uint16_t); 147 void main_imsg_compose_frontend_fd(int, pid_t, int); 148 149 void main_imsg_compose_engine(int, pid_t, void *, uint16_t); 150 void merge_config(struct rad_conf *, struct rad_conf *); 151 void imsg_event_add(struct imsgev *); 152 int imsg_compose_event(struct imsgev *, uint16_t, uint32_t, pid_t, 153 int, void *, uint16_t); 154 155 struct rad_conf *config_new_empty(void); 156 void config_clear(struct rad_conf *); 157 void free_ra_iface_conf(struct ra_iface_conf *); 158 void free_dns_options(struct ra_options_conf *); 159 void mask_prefix(struct in6_addr*, int len); 160 const char *sin6_to_str(struct sockaddr_in6 *); 161 const char *in6_to_str(struct in6_addr *); 162 163 /* printconf.c */ 164 void print_config(struct rad_conf *); 165 166 /* parse.y */ 167 struct rad_conf *parse_config(char *); 168 int cmdline_symset(char *); 169