diff options
Diffstat (limited to 'usr.sbin/pim6dd/debug.c')
| -rw-r--r-- | usr.sbin/pim6dd/debug.c | 500 |
1 files changed, 500 insertions, 0 deletions
diff --git a/usr.sbin/pim6dd/debug.c b/usr.sbin/pim6dd/debug.c new file mode 100644 index 0000000..0894d5c --- /dev/null +++ b/usr.sbin/pim6dd/debug.c @@ -0,0 +1,500 @@ +/* + * Copyright (c) 1998 by the University of Southern California. + * All rights reserved. + * + * Permission to use, copy, modify, and distribute this software and + * its documentation in source and binary forms for lawful + * purposes and without fee is hereby granted, provided + * that the above copyright notice appear in all copies and that both + * the copyright notice and this permission notice appear in supporting + * documentation, and that any documentation, advertising materials, + * and other materials related to such distribution and use acknowledge + * that the software was developed by the University of Southern + * California and/or Information Sciences Institute. + * The name of the University of Southern California may not + * be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THE UNIVERSITY OF SOUTHERN CALIFORNIA DOES NOT MAKE ANY REPRESENTATIONS + * ABOUT THE SUITABILITY OF THIS SOFTWARE FOR ANY PURPOSE. THIS SOFTWARE IS + * PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, + * INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, TITLE, AND + * NON-INFRINGEMENT. + * + * IN NO EVENT SHALL USC, OR ANY OTHER CONTRIBUTOR BE LIABLE FOR ANY + * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES, WHETHER IN CONTRACT, + * TORT, OR OTHER FORM OF ACTION, ARISING OUT OF OR IN CONNECTION WITH, + * THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Other copyrights might apply to parts of this software and are so + * noted when applicable. + */ +/* + * Questions concerning this software should be directed to + * Pavlin Ivanov Radoslavov (pavlin@catarina.usc.edu) + * + * $Id: debug.c,v 1.4 1999/09/20 14:28:08 jinmei Exp $ + */ +/* + * Part of this program has been derived from mrouted. + * The mrouted program is covered by the license in the accompanying file + * named "LICENSE.mrouted". + * + * The mrouted program is COPYRIGHT 1989 by The Board of Trustees of + * Leland Stanford Junior University. + * + * $FreeBSD$ + */ + +#include "defs.h" + + +#ifdef __STDC__ +#include <stdarg.h> +#else +#include <varargs.h> +#endif + +extern int haveterminal; +extern char *progname; + +int log_nmsgs = 0; +unsigned long debug = 0x00000000; /* If (long) is smaller than + * 4 bytes, then we are in + * trouble. + */ +static char dumpfilename[] = _PATH_PIM6D_DUMP; +static char cachefilename[] = _PATH_PIM6D_CACHE; /* TODO: notused */ + + +char * +packet_kind(proto, type, code) + u_int proto, type, code; +{ + static char unknown[60]; + + switch (proto) { + case IPPROTO_ICMPV6: + switch (type) { + case MLD6_LISTENER_QUERY: return "Multicast Listener Query "; + case MLD6_LISTENER_REPORT: return "Multicast Listener Report "; + case MLD6_LISTENER_DONE: return "Multicast Listener Done "; + default: + sprintf(unknown, + "UNKNOWN ICMPv6 message: type = 0x%02x, code = 0x%02x ", + type, code); + return unknown; + } + + case IPPROTO_PIM: /* PIM v2 */ + switch (type) { + case PIM_V2_HELLO: return "PIM v2 Hello "; + case PIM_V2_REGISTER: return "PIM v2 Register "; + case PIM_V2_REGISTER_STOP: return "PIM v2 Register_Stop "; + case PIM_V2_JOIN_PRUNE: return "PIM v2 Join/Prune "; + case PIM_V2_BOOTSTRAP: return "PIM v2 Bootstrap "; + case PIM_V2_ASSERT: return "PIM v2 Assert "; + case PIM_V2_GRAFT: return "PIM-DM v2 Graft "; + case PIM_V2_GRAFT_ACK: return "PIM-DM v2 Graft_Ack "; + case PIM_V2_CAND_RP_ADV: return "PIM v2 Cand. RP Adv. "; + default: + sprintf(unknown, "UNKNOWN PIM v2 message type =%3d ", type); + return unknown; + } + default: + sprintf(unknown, "UNKNOWN proto =%3d ", proto); + return unknown; + } +} + + +/* + * Used for debugging particular type of messages. + */ +int +debug_kind(proto, type, code) + u_int proto, type, code; +{ + switch (proto) { + case IPPROTO_ICMPV6: + switch (type) { + case MLD6_LISTENER_QUERY: return DEBUG_MLD; + case MLD6_LISTENER_REPORT: return DEBUG_MLD; + case MLD6_LISTENER_DONE: return DEBUG_MLD; + default: return DEBUG_MLD; + } + case IPPROTO_PIM: /* PIM v2 */ + /* TODO: modify? */ + switch (type) { + case PIM_V2_HELLO: return DEBUG_PIM; + case PIM_V2_REGISTER: return DEBUG_PIM_REGISTER; + case PIM_V2_REGISTER_STOP: return DEBUG_PIM_REGISTER; + case PIM_V2_JOIN_PRUNE: return DEBUG_PIM; + case PIM_V2_BOOTSTRAP: return DEBUG_PIM_BOOTSTRAP; + case PIM_V2_ASSERT: return DEBUG_PIM; + case PIM_V2_GRAFT: return DEBUG_PIM; + case PIM_V2_GRAFT_ACK: return DEBUG_PIM; + case PIM_V2_CAND_RP_ADV: return DEBUG_PIM_CAND_RP; + default: return DEBUG_PIM; + } + default: return 0; + } + return 0; +} + + +/* + * Some messages are more important than others. This routine + * determines the logging level at which to log a send error (often + * "No route to host"). This is important when there is asymmetric + * reachability and someone is trying to, i.e., mrinfo me periodically. + */ +int +log_level(proto, type, code) + u_int proto, type, code; +{ + switch (proto) { + case IPPROTO_ICMPV6: + switch (type) { + default: + return LOG_WARNING; + } + + case IPPROTO_PIM: + /* PIM v2 */ + switch (type) { + default: + return LOG_INFO; + } + default: + return LOG_WARNING; + } + return LOG_WARNING; +} + + +/* + * Dump internal data structures to stderr. + */ +/* TODO: currently not used +void +dump(int i) +{ + dump_vifs(stderr); + dump_pim_mrt(stderr); +} +*/ + +/* + * Dump internal data structures to a file. + */ +void +fdump(i) + int i; +{ + FILE *fp; + fp = fopen(dumpfilename, "w"); + if (fp != NULL) { + dump_vifs(fp); + dump_pim_mrt(fp); + dump_lcl_grp(fp); + (void) fclose(fp); + } +} + +/* TODO: dummy, to be used in the future. */ +/* + * Dump local cache contents to a file. + */ +void +cdump(i) + int i; +{ + FILE *fp; + + fp = fopen(cachefilename, "w"); + if (fp != NULL) { + /* TODO: implement it: + dump_cache(fp); + */ + (void) fclose(fp); + } +} + +void +dump_vifs(fp) + FILE *fp; +{ + vifi_t vifi; + register struct uvif *v; + pim_nbr_entry_t *n; + struct phaddr *pa; + int width; + int i; + + fprintf(fp, "\nMulticast Interface Table\n %-4s %-6s %-50s %-14s %s", + "Mif", " PhyIF", "Local-Address/Prefixlen", "Flags", + "Neighbors\n"); + + for (vifi = 0, v = uvifs; vifi < numvifs; ++vifi, ++v) { + int firstaddr = 1; + for (pa = v->uv_addrs; pa; pa = pa->pa_next) { + if (!firstaddr) { + fprintf(fp, " %3s %6s %-50s\n", "", "", + net6name(&pa->pa_addr.sin6_addr, + &pa->pa_subnetmask)); + continue; + } + + firstaddr = 0; + fprintf(fp, " %-3u %6s %-50s", vifi, v->uv_name, + net6name(&pa->pa_addr.sin6_addr, + &pa->pa_subnetmask)); + firstaddr = 0; +#if 0 + if (v->uv_flags & MIFF_REGISTER) + fprintf(fp, "%-16s ", v->uv_name); + else + fprintf(fp,"%-16.16s ", + net6name(&v->uv_prefix.sin6_addr, + &v->uv_subnetmask)); +#endif + width = 0; + if (v->uv_flags & VIFF_DISABLED) + fprintf(fp, " DISABLED"); + if (v->uv_flags & VIFF_NOLISTENER) + fprintf(fp, " NOLISTENER"); + if (v->uv_flags & VIFF_DOWN) + fprintf(fp, " DOWN"); + if (v->uv_flags & VIFF_DR) { + fprintf(fp, " DR"); + width += 3; + } + if (v->uv_flags & VIFF_PIM_NBR) { + fprintf(fp, " PIM"); + width += 4; + } +#if 0 /* impossible */ + if (v->uv_flags & VIFF_DVMRP_NBR) { + fprintf(fp, " DVMRP"); + width += 6; + } +#endif + if (v->uv_flags & VIFF_NONBRS) { + fprintf(fp, " %-12s", "NO-NBR"); + width += 6; + } + + if ((n = v->uv_pim_neighbors) != NULL) { + /* Print the first neighbor on the same line */ + for (i = width; i <= 15; i++) + fprintf(fp, " "); + fprintf(fp, "%-12s\n", + inet6_fmt(&n->address.sin6_addr)); + for (n = n->next; n != NULL; n = n->next) + fprintf(fp, "%64s %-15s\n", "", + inet6_fmt(&n->address.sin6_addr)); + + } + else + fprintf(fp, "\n"); + } + } + fprintf(fp, "\n"); +} + + +/* + * Log errors and other messages to the system log daemon and to stderr, + * according to the severity of the message and the current debug level. + * For errors of severity LOG_ERR or worse, terminate the program. + */ +#ifdef __STDC__ +void +log(int severity, int syserr, char *format, ...) +{ + va_list ap; + static char fmt[211] = "warning - "; + char *msg; + struct timeval now; + struct tm *thyme; + + va_start(ap, format); +#else +/*VARARGS3*/ +void +log(severity, syserr, format, va_alist) + int severity, syserr; + char *format; + va_dcl +{ + va_list ap; + static char fmt[311] = "warning - "; + char *msg; + char tbuf[20]; + struct timeval now; + struct tm *thyme; + + va_start(ap); +#endif + vsprintf(&fmt[10], format, ap); + va_end(ap); + msg = (severity == LOG_WARNING) ? fmt : &fmt[10]; + + /* + * Log to stderr if we haven't forked yet and it's a warning or worse, + * or if we're debugging. + */ + if (haveterminal && (debug || severity <= LOG_WARNING)) { + time_t sectime; + gettimeofday(&now,NULL); + sectime = (time_t) now.tv_sec; + thyme = localtime(§ime); + if (!debug) + fprintf(stderr, "%s: ", progname); + fprintf(stderr, "%02d:%02d:%02d.%03ld %s", thyme->tm_hour, + thyme->tm_min, thyme->tm_sec, now.tv_usec / 1000, msg); + if (syserr == 0) + fprintf(stderr, "\n"); + else if (syserr < sys_nerr) + fprintf(stderr, ": %s\n", sys_errlist[syserr]); + else + fprintf(stderr, ": errno %d\n", syserr); + } + + /* + * Always log things that are worse than warnings, no matter what + * the log_nmsgs rate limiter says. + * Only count things worse than debugging in the rate limiter + * (since if you put daemon.debug in syslog.conf you probably + * actually want to log the debugging messages so they shouldn't + * be rate-limited) + */ + if ((severity < LOG_WARNING) || (log_nmsgs < LOG_MAX_MSGS)) { + if (severity < LOG_DEBUG) + log_nmsgs++; + if (syserr != 0) { + errno = syserr; + syslog(severity, "%s: %m", msg); + } else + syslog(severity, "%s", msg); + } + + if (severity <= LOG_ERR) exit(-1); +} + +/* TODO: format the output for better readability */ +void +dump_pim_mrt(fp) + FILE *fp; +{ + grpentry_t *g; + register mrtentry_t *r; + register vifi_t vifi; + u_int number_of_groups = 0; + char oifs[(sizeof(if_set)<<3)+1]; + char pruned_oifs[(sizeof(if_set)<<3)+1]; + char asserted_oifs[(sizeof(if_set)<<3)+1]; + char leaves_oifs[(sizeof(if_set)<<3)+1]; + char filter_oifs[(sizeof(if_set)<<3)+1]; + char incoming_iif[(sizeof(if_set)<<3)+1]; + + fprintf(fp, "Multicast Routing Table\n%s", + " Source Group Flags\n"); + + /* TODO: remove the dummy 0:: group (first in the chain) */ + for (g = grplist->next; g != (grpentry_t *)NULL; g = g->next) { + number_of_groups++; + /* Print all (S,G) routing info */ + for (r = g->mrtlink; r != (mrtentry_t *)NULL; r = r->grpnext) { + fprintf(fp, "---------------------------(S,G)----------------------------\n"); + /* Print the routing info */ + fprintf(fp, " %-15s", inet6_fmt(&r->source->address.sin6_addr)); + fprintf(fp, " %-15s", inet6_fmt(&g->group.sin6_addr)); + + for (vifi = 0; vifi < numvifs; vifi++) { + oifs[vifi] = + IF_ISSET(vifi, &r->oifs) ? 'o' : '.'; + pruned_oifs[vifi] = + IF_ISSET(vifi, &r->pruned_oifs) ? 'p' : '.'; + asserted_oifs[vifi] = + IF_ISSET(vifi, &r->pruned_oifs) ? 'a' : '.'; + filter_oifs[vifi] = + IF_ISSET(vifi, &r->filter_oifs) ? 'f' : '.'; + leaves_oifs[vifi] = + IF_ISSET(vifi, &r->leaves) ? 'l' : '.'; + incoming_iif[vifi] = '.'; + } + oifs[vifi] = 0x0; /* End of string */ + pruned_oifs[vifi] = 0x0; + leaves_oifs[vifi] = 0x0; + filter_oifs[vifi] = 0x0; + incoming_iif[vifi] = 0x0; + incoming_iif[r->incoming] = 'I'; + + /* TODO: don't need some of the flags */ + if (r->flags & MRTF_SPT) fprintf(fp, " SPT"); + if (r->flags & MRTF_WC) fprintf(fp, " WC"); + if (r->flags & MRTF_RP) fprintf(fp, " RP"); + if (r->flags & MRTF_REGISTER) fprintf(fp, " REG"); + if (r->flags & MRTF_IIF_REGISTER) fprintf(fp, " IIF_REG"); + if (r->flags & MRTF_NULL_OIF) fprintf(fp, " NULL_OIF"); + if (r->flags & MRTF_KERNEL_CACHE) fprintf(fp, " CACHE"); + if (r->flags & MRTF_ASSERTED) fprintf(fp, " ASSERTED"); + if (r->flags & MRTF_REG_SUPP) fprintf(fp, " REG_SUPP"); + if (r->flags & MRTF_SG) fprintf(fp, " SG"); + if (r->flags & MRTF_PMBR) fprintf(fp, " PMBR"); + fprintf(fp, "\n"); + + fprintf(fp, "Pruned oifs: %-20s\n", pruned_oifs); + fprintf(fp, "Asserted oifs: %-20s\n", pruned_oifs); + fprintf(fp, "Filtered oifs: %-20s\n", filter_oifs); + fprintf(fp, "Leaves oifs: %-20s\n", leaves_oifs); + fprintf(fp, "Outgoing oifs: %-20s\n", oifs); + fprintf(fp, "Incoming : %-20s\n", incoming_iif); + + fprintf(fp, "Upstream nbr: %s\n", + r->upstream ? inet6_fmt(&r->upstream->address.sin6_addr) : "NONE"); + fprintf(fp, "\nTIMERS: Entry Prune VIFS:"); + for (vifi = 0; vifi < numvifs; vifi++) + fprintf(fp, " %2d", vifi); + fprintf(fp, "\n %3d ", + r->timer); + for (vifi = 0; vifi < numvifs; vifi++) + fprintf(fp, " %3d", r->prune_timers[vifi]); + fprintf(fp, "\n"); + } + }/* for all groups */ + + fprintf(fp, "Number of Groups: %u\n", number_of_groups); +} + +void +dump_lcl_grp(fp) + FILE *fp; +{ + vifi_t vifi; + struct uvif *v; + struct listaddr *g; + + fprintf(fp, "\nList of local listener information per interface\n"); + for (vifi = 0, v = uvifs; vifi < numvifs; vifi++, v++) { + int first = 1; + + for (g = v->uv_groups; g != NULL; g = g->al_next) { + if (first) { + fprintf(fp, " Mif %d(%s)\n", vifi, v->uv_name); + first = 0; + } + fprintf(fp, " %s", inet6_fmt(&g->al_addr.sin6_addr)); + if (g->al_timerid) + fprintf(fp, " timeout: %d", + timer_leftTimer(g->al_timerid)); + if (g->al_query) + fprintf(fp, " querytimer: %d", + timer_leftTimer(g->al_timerid)); + fputc('\n', fp); + } + } +} |
