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    /*	$OpenBSD: dump.c,v 1.23 2017/04/05 13:38:18 jca Exp $	*/  | 
    
    
    2  | 
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    /*	$KAME: dump.c,v 1.27 2002/05/29 14:23:55 itojun Exp $	*/  | 
    
    
    3  | 
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    4  | 
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    /*  | 
    
    
    5  | 
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     * Copyright (C) 2000 WIDE Project.  | 
    
    
    6  | 
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     * All rights reserved.  | 
    
    
    7  | 
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     *  | 
    
    
    8  | 
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     * Redistribution and use in source and binary forms, with or without  | 
    
    
    9  | 
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     * modification, are permitted provided that the following conditions  | 
    
    
    10  | 
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     * are met:  | 
    
    
    11  | 
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     * 1. Redistributions of source code must retain the above copyright  | 
    
    
    12  | 
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     *    notice, this list of conditions and the following disclaimer.  | 
    
    
    13  | 
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     * 2. Redistributions in binary form must reproduce the above copyright  | 
    
    
    14  | 
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     *    notice, this list of conditions and the following disclaimer in the  | 
    
    
    15  | 
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     *    documentation and/or other materials provided with the distribution.  | 
    
    
    16  | 
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     * 3. Neither the name of the project nor the names of its contributors  | 
    
    
    17  | 
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     *    may be used to endorse or promote products derived from this software  | 
    
    
    18  | 
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     *    without specific prior written permission.  | 
    
    
    19  | 
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     *  | 
    
    
    20  | 
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     * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND  | 
    
    
    21  | 
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     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE  | 
    
    
    22  | 
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     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE  | 
    
    
    23  | 
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     * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE  | 
    
    
    24  | 
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     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL  | 
    
    
    25  | 
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     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS  | 
    
    
    26  | 
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     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)  | 
    
    
    27  | 
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     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT  | 
    
    
    28  | 
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     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY  | 
    
    
    29  | 
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     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF  | 
    
    
    30  | 
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     * SUCH DAMAGE.  | 
    
    
    31  | 
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     */  | 
    
    
    32  | 
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    #include <sys/types.h>  | 
    
    
    33  | 
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    #include <sys/socket.h>  | 
    
    
    34  | 
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    #include <sys/queue.h>  | 
    
    
    35  | 
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    36  | 
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    #include <net/if.h>  | 
    
    
    37  | 
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    #include <net/if_dl.h>  | 
    
    
    38  | 
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    39  | 
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    #include <netinet/in.h>  | 
    
    
    40  | 
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    41  | 
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    /* XXX: the following two are non-standard include files */  | 
    
    
    42  | 
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    #include <netinet6/in6_var.h>  | 
    
    
    43  | 
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    #include <netinet6/nd6.h>  | 
    
    
    44  | 
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    45  | 
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    #include <arpa/inet.h>  | 
    
    
    46  | 
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    47  | 
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    #include <time.h>  | 
    
    
    48  | 
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    #include <stdio.h>  | 
    
    
    49  | 
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    #include <stdarg.h>  | 
    
    
    50  | 
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    #include <stdlib.h>  | 
    
    
    51  | 
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    #include <string.h>  | 
    
    
    52  | 
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    #include <errno.h>  | 
    
    
    53  | 
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    #include <netdb.h>  | 
    
    
    54  | 
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    #include <event.h>  | 
    
    
    55  | 
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    56  | 
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    #include "rtadvd.h"  | 
    
    
    57  | 
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    #include "if.h"  | 
    
    
    58  | 
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    #include "log.h"  | 
    
    
    59  | 
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    #include "dump.h"  | 
    
    
    60  | 
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    61  | 
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    extern struct ralist ralist;  | 
    
    
    62  | 
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    63  | 
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    static char *ether_str(struct sockaddr_dl *);  | 
    
    
    64  | 
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    char *lifetime(int);  | 
    
    
    65  | 
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    66  | 
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    static char *rtpref_str[] = { | 
    
    
    67  | 
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    	"medium",		/* 00 */  | 
    
    
    68  | 
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    	"high",			/* 01 */  | 
    
    
    69  | 
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    	"rsv",			/* 10 */  | 
    
    
    70  | 
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    	"low"			/* 11 */  | 
    
    
    71  | 
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    };  | 
    
    
    72  | 
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    73  | 
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    static char *  | 
    
    
    74  | 
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    ether_str(struct sockaddr_dl *sdl)  | 
    
    
    75  | 
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    { | 
    
    
    76  | 
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    	static char hbuf[NI_MAXHOST];  | 
    
    
    77  | 
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    	u_char *cp;  | 
    
    
    78  | 
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    79  | 
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    	if (sdl->sdl_alen) { | 
    
    
    80  | 
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    		cp = (u_char *)LLADDR(sdl);  | 
    
    
    81  | 
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    		snprintf(hbuf, sizeof(hbuf), "%02x:%02x:%02x:%02x:%02x:%02x",  | 
    
    
    82  | 
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    		    cp[0], cp[1], cp[2], cp[3], cp[4], cp[5]);  | 
    
    
    83  | 
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    	} else  | 
    
    
    84  | 
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    		snprintf(hbuf, sizeof(hbuf), "NONE");  | 
    
    
    85  | 
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    86  | 
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    	return(hbuf);  | 
    
    
    87  | 
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    }  | 
    
    
    88  | 
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    89  | 
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    char *  | 
    
    
    90  | 
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    lifetime(int lt)  | 
    
    
    91  | 
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    { | 
    
    
    92  | 
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    	char *str;  | 
    
    
    93  | 
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    94  | 
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    	if (lt == ND6_INFINITE_LIFETIME) { | 
    
    
    95  | 
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    		if (asprintf(&str, "infinity") < 0)  | 
    
    
    96  | 
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    			return (NULL);  | 
    
    
    97  | 
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    	} else { | 
    
    
    98  | 
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    		if (asprintf(&str, "%ld", (long)lt) < 0)  | 
    
    
    99  | 
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    			return (NULL);  | 
    
    
    100  | 
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    	}  | 
    
    
    101  | 
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    	return str;  | 
    
    
    102  | 
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    }  | 
    
    
    103  | 
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    104  | 
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    void  | 
    
    
    105  | 
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    rtadvd_dump(void)  | 
    
    
    106  | 
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    { | 
    
    
    107  | 
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    	struct rainfo *rai;  | 
    
    
    108  | 
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    	struct prefix *pfx;  | 
    
    
    109  | 
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    	struct rdnss *rds;  | 
    
    
    110  | 
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    	struct dnssl *dsl;  | 
    
    
    111  | 
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    	struct dnssldom *dnsd;  | 
    
    
    112  | 
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    	char prefixbuf[INET6_ADDRSTRLEN];  | 
    
    
    113  | 
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    	int first;  | 
    
    
    114  | 
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    	struct timeval now, next;  | 
    
    
    115  | 
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    	char *origin, *vltime, *pltime, *flags;  | 
    
    
    116  | 
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    	char *vltimexpire, *pltimexpire;  | 
    
    
    117  | 
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    	char ctimebuf[26];  | 
    
    
    118  | 
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    119  | 
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    	gettimeofday(&now, NULL);  | 
    
    
    120  | 
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    	SLIST_FOREACH(rai, &ralist, entry) { | 
    
    
    121  | 
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    		log_info("%s:", rai->ifname); | 
    
    
    122  | 
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    123  | 
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    		log_info("  Status: %s", | 
    
    
    124  | 
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    		    (iflist[rai->ifindex]->ifm_flags & IFF_UP) ? "UP" : "DOWN");  | 
    
    
    125  | 
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    126  | 
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    		/* control information */  | 
    
    
    127  | 
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    		if (rai->lastsent.tv_sec) { | 
    
    
    128  | 
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    			time_t t = rai->lastsent.tv_sec;  | 
    
    
    129  | 
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    			(void)strlcpy(ctimebuf, ctime(&t), sizeof(ctimebuf));  | 
    
    
    130  | 
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    			ctimebuf[strcspn(ctimebuf, "\n")] = '\0';  | 
    
    
    131  | 
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    			log_info("  Last RA sent: %s", ctimebuf); | 
    
    
    132  | 
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    		}  | 
    
    
    133  | 
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    		if (evtimer_pending(&rai->timer.ev, &next)) { | 
    
    
    134  | 
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    			time_t t = next.tv_sec;  | 
    
    
    135  | 
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    			(void)strlcpy(ctimebuf, ctime(&t), sizeof(ctimebuf));  | 
    
    
    136  | 
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    			ctimebuf[strcspn(ctimebuf, "\n")] = '\0';  | 
    
    
    137  | 
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    			log_info("  Next RA will be sent: %s", ctimebuf); | 
    
    
    138  | 
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    		} else  | 
    
    
    139  | 
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    			log_info("  RA timer is stopped"); | 
    
    
    140  | 
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    		log_info("  waits: %u, initcount: %u", | 
    
    
    141  | 
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    		    rai->waiting, rai->initcounter);  | 
    
    
    142  | 
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    143  | 
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    		/* statistics */  | 
    
    
    144  | 
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    		log_info("  statistics: RA(out/in/inconsistent): " | 
    
    
    145  | 
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    		    "%llu/%llu/%llu, RS(input): %llu",  | 
    
    
    146  | 
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    		    (unsigned long long)rai->raoutput,  | 
    
    
    147  | 
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    		    (unsigned long long)rai->rainput,  | 
    
    
    148  | 
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    		    (unsigned long long)rai->rainconsistent,  | 
    
    
    149  | 
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    		    (unsigned long long)rai->rsinput);  | 
    
    
    150  | 
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    151  | 
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    		/* interface information */  | 
    
    
    152  | 
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    		if (rai->advlinkopt)  | 
    
    
    153  | 
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    			log_info("  Link-layer address: %s", | 
    
    
    154  | 
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    			    ether_str(rai->sdl));  | 
    
    
    155  | 
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    		log_info("  MTU: %d", rai->phymtu); | 
    
    
    156  | 
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    157  | 
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    		/* Router configuration variables */  | 
    
    
    158  | 
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    		log_info("  DefaultLifetime: %d, MaxAdvInterval: %d, " | 
    
    
    159  | 
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    		    "MinAdvInterval: %d, "  | 
    
    
    160  | 
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    		    "Flags: %s%s, Preference: %s, MTU: %d",  | 
    
    
    161  | 
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    		    rai->lifetime, rai->maxinterval, rai->mininterval,  | 
    
    
    162  | 
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    		    rai->managedflg ? "M" : "-", rai->otherflg ? "O" : "-",  | 
    
    
    163  | 
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    		    rtpref_str[(rai->rtpref >> 3) & 0xff], rai->linkmtu);  | 
    
    
    164  | 
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    		log_info("  ReachableTime: %d, RetransTimer: %d, " | 
    
    
    165  | 
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    		    "CurHopLimit: %d", rai->reachabletime,  | 
    
    
    166  | 
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    		    rai->retranstimer, rai->hoplimit);  | 
    
    
    167  | 
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    		if (rai->clockskew)  | 
    
    
    168  | 
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    			log_info("  Clock skew: %ldsec", | 
    
    
    169  | 
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    			    rai->clockskew);  | 
    
    
    170  | 
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    		first = 1;  | 
    
    
    171  | 
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    		TAILQ_FOREACH(pfx, &rai->prefixes, entry) { | 
    
    
    172  | 
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    			if (first) { | 
    
    
    173  | 
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    				log_info("  Prefixes:"); | 
    
    
    174  | 
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    				first = 0;  | 
    
    
    175  | 
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    			}  | 
    
    
    176  | 
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    			switch (pfx->origin) { | 
    
    
    177  | 
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    			case PREFIX_FROM_KERNEL:  | 
    
    
    178  | 
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    				origin = "KERNEL";  | 
    
    
    179  | 
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    				break;  | 
    
    
    180  | 
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    			case PREFIX_FROM_CONFIG:  | 
    
    
    181  | 
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    				origin = "CONFIG";  | 
    
    
    182  | 
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    				break;  | 
    
    
    183  | 
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    			case PREFIX_FROM_DYNAMIC:  | 
    
    
    184  | 
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    				origin = "DYNAMIC";  | 
    
    
    185  | 
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    				break;  | 
    
    
    186  | 
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    			default:  | 
    
    
    187  | 
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    				origin = "";  | 
    
    
    188  | 
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    			}  | 
    
    
    189  | 
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    			if (pfx->vltimeexpire != 0) { | 
    
    
    190  | 
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    				/* truncate to onwire value */  | 
    
    
    191  | 
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    				if (asprintf(&vltimexpire, "(decr,expire %u)",  | 
    
    
    192  | 
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    				    (u_int32_t)(pfx->vltimeexpire > now.tv_sec ?  | 
    
    
    193  | 
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    				    pfx->vltimeexpire - now.tv_sec : 0)) == -1)  | 
    
    
    194  | 
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    					vltimexpire = NULL;  | 
    
    
    195  | 
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    			} else  | 
    
    
    196  | 
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    				vltimexpire = NULL;  | 
    
    
    197  | 
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    198  | 
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    			if (pfx->pltimeexpire != 0) { | 
    
    
    199  | 
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    				/* truncate to onwire value */  | 
    
    
    200  | 
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    				if (asprintf(&pltimexpire, "(decr,expire %u)",  | 
    
    
    201  | 
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    				    (u_int32_t)(pfx->pltimeexpire > now.tv_sec ?  | 
    
    
    202  | 
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    				    pfx->pltimeexpire - now.tv_sec : 0)) == -1)  | 
    
    
    203  | 
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    					pltimexpire = NULL;  | 
    
    
    204  | 
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    			} else  | 
    
    
    205  | 
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    				pltimexpire = NULL;  | 
    
    
    206  | 
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    207  | 
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    			vltime = lifetime(pfx->validlifetime);  | 
    
    
    208  | 
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    			pltime = lifetime(pfx->preflifetime);  | 
    
    
    209  | 
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    			asprintf(&flags, "%s%s",  | 
    
    
    210  | 
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    			    pfx->onlinkflg ? "L" : "-",  | 
    
    
    211  | 
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    			    pfx->autoconfflg ? "A" : "-");  | 
    
    
    212  | 
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    			log_info("    %s/%d(%s, vltime: %s%s, " | 
    
    
    213  | 
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    			    "pltime: %s%s, flags: %s)",  | 
    
    
    214  | 
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    			    inet_ntop(AF_INET6, &pfx->prefix, prefixbuf,  | 
    
    
    215  | 
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    			    sizeof(prefixbuf)), pfx->prefixlen, origin,  | 
    
    
    216  | 
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    			    vltime, (vltimexpire)? vltimexpire : "",  | 
    
    
    217  | 
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    			    pltime, (pltimexpire)? pltimexpire : "", flags);  | 
    
    
    218  | 
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    219  | 
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    			free(vltimexpire);  | 
    
    
    220  | 
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    			vltimexpire = NULL;  | 
    
    
    221  | 
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    			free(pltimexpire);  | 
    
    
    222  | 
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    			pltimexpire = NULL;  | 
    
    
    223  | 
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    			free(vltime);  | 
    
    
    224  | 
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    			free(pltime);  | 
    
    
    225  | 
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    			free(flags);  | 
    
    
    226  | 
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    		}  | 
    
    
    227  | 
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    228  | 
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    		if (!TAILQ_EMPTY(&rai->rdnsss))  | 
    
    
    229  | 
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    			log_info("  Recursive DNS servers:"); | 
    
    
    230  | 
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    		TAILQ_FOREACH(rds, &rai->rdnsss, entry) { | 
    
    
    231  | 
     | 
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    			log_info("    Servers:"); | 
    
    
    232  | 
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    			for (first = 0; first < rds->servercnt; ++first) { | 
    
    
    233  | 
     | 
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    				inet_ntop(AF_INET6, &rds->servers[first],  | 
    
    
    234  | 
     | 
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    				    prefixbuf, sizeof(prefixbuf));  | 
    
    
    235  | 
     | 
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    				log_info("      %s", prefixbuf); | 
    
    
    236  | 
     | 
     | 
    			}  | 
    
    
    237  | 
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    			log_info("    Lifetime: %u", rds->lifetime); | 
    
    
    238  | 
     | 
     | 
    		}  | 
    
    
    239  | 
     | 
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    240  | 
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    		if (!TAILQ_EMPTY(&rai->dnssls))  | 
    
    
    241  | 
     | 
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    			log_info("  DNS search lists:"); | 
    
    
    242  | 
     | 
     | 
    		TAILQ_FOREACH(dsl, &rai->dnssls, entry) { | 
    
    
    243  | 
     | 
     | 
    			log_info("    Domains:"); | 
    
    
    244  | 
     | 
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    245  | 
     | 
     | 
    			TAILQ_FOREACH(dnsd, &dsl->dnssldoms, entry)  | 
    
    
    246  | 
     | 
     | 
    				log_info("      %s", dnsd->domain); | 
    
    
    247  | 
     | 
     | 
     | 
    
    
    248  | 
     | 
     | 
    			log_info("    Lifetime: %u", dsl->lifetime); | 
    
    
    249  | 
     | 
     | 
    		}  | 
    
    
    250  | 
     | 
     | 
    	}  | 
    
    
    251  | 
     | 
     | 
    }  |