1 /* $USAGI: ninfod.h,v 1.20 2002-12-19 15:51:16 yoshfuji Exp $ */ 2 /* 3 * Copyright (C) 2002 USAGI/WIDE Project. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. Neither the name of the project nor the names of its contributors 15 * may be used to endorse or promote products derived from this software 16 * without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 */ 30 /* 31 * Author: 32 * YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> 33 */ 34 35 /* definitions */ 36 #define NINFOD "ninfod" 37 #define NINFOD_PIDFILE "/var/run/ninfod.pid" 38 39 #define MAX_ANYCAST_DELAY_TIME 1000000.0 /* 1 sec */ 40 41 #define MAX_DNSLABEL_SIZE 63 42 #define MAX_DNSNAME_SIZE 255 43 #define MAX_QUERY_SIZE (sizeof(struct icmp6_nodeinfo)+MAX_DNSNAME_SIZE+2) 44 #define MAX_REPLY_SIZE 1280-sizeof(struct ip6_hdr) 45 46 #define MAX_SUPTYPES 32 47 48 #define CHECKANDFILL_ARGS struct packetcontext *p,\ 49 char *subject, size_t subjlen, \ 50 unsigned int flags, \ 51 unsigned int *subj_if, \ 52 int reply 53 #define INIT_ARGS \ 54 int forced 55 56 struct packetcontext { 57 /* socket */ 58 int sock; 59 60 /* query info */ 61 struct sockaddr_storage addr; 62 socklen_t addrlen; 63 struct in6_pktinfo pktinfo; 64 char query[MAX_QUERY_SIZE]; 65 int querylen; 66 67 /* reply info */ 68 struct icmp6_nodeinfo reply; /* common */ 69 char *replydata; /* data */ 70 int replydatalen; 71 72 unsigned int delay; /* (random) delay */ 73 }; 74 75 /* variables */ 76 extern int opt_v; /* ninfod.c */ 77 extern int daemonized; /* ninfod.c */ 78 extern int sock; /* ninfod.c */ 79 extern int initialized; /* ninfod_core.c */ 80 81 /* ninfod.c* */ 82 int ni_recv(struct packetcontext *p); 83 int ni_send(struct packetcontext *p); 84 85 /* ninfod_core.c */ 86 #if ENABLE_DEBUG 87 void stderrlog(int priority, char *format, ...); 88 # define DEBUG(pri, fmt, args...) do { \ 89 int saved_errno = errno; \ 90 if (opt_v || pri != LOG_DEBUG) { \ 91 if (daemonized) { \ 92 syslog(pri, fmt, ## args); \ 93 } else { \ 94 stderrlog(pri, fmt, ## args); \ 95 } \ 96 } \ 97 errno = saved_errno; \ 98 } while(0) 99 #else 100 # define DEBUG(pri, fmt, args...) do { ; } while(0) 101 #endif 102 103 #define ni_malloc(size) ({ \ 104 size_t _size = (size); \ 105 void *p = malloc(_size); \ 106 DEBUG(LOG_DEBUG, "%s(): malloc(%zu) = %p\n", __func__, _size, p); \ 107 p; \ 108 }) 109 #define ni_free(p) ({ \ 110 void *_p = (p); \ 111 int saved_errno = errno; \ 112 DEBUG(LOG_DEBUG, "%s(): free(%p)\n", __func__, _p); \ 113 free(_p); \ 114 errno = saved_errno; \ 115 }) 116 117 void init_core(int forced); 118 int pr_nodeinfo(struct packetcontext *p); 119 120 int pr_nodeinfo_unknown(CHECKANDFILL_ARGS); 121 int pr_nodeinfo_refused(CHECKANDFILL_ARGS); 122 int pr_nodeinfo_noop(CHECKANDFILL_ARGS); 123 void init_nodeinfo_suptypes(INIT_ARGS); 124 int pr_nodeinfo_suptypes(CHECKANDFILL_ARGS); 125 126 /* ninfod_addrs.c */ 127 void init_nodeinfo_ipv6addr(INIT_ARGS); 128 int pr_nodeinfo_ipv6addr(CHECKANDFILL_ARGS); 129 void init_nodeinfo_ipv4addr(INIT_ARGS); 130 int pr_nodeinfo_ipv4addr(CHECKANDFILL_ARGS); 131 132 /* ninfod_name.c */ 133 int check_nigroup(const struct in6_addr *addr); 134 void init_nodeinfo_nodename(INIT_ARGS); 135 int pr_nodeinfo_nodename(CHECKANDFILL_ARGS); 136 137