/* * Copyright 2009 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. * * Copyright (c) 1983, 1988, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgment: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $FreeBSD: src/sbin/routed/trace.c,v 1.6 2000/08/11 08:24:38 sheldonh Exp $ */ #include "defs.h" #include "pathnames.h" #include #include #include #include #include #include #define NRECORDS 50 /* size of circular trace buffer */ int tracelevel, new_tracelevel; FILE *ftrace = stdout; /* output trace file */ static const char *sigtrace_pat = "%s"; static char savetracename[MAXPATHLEN+1]; static char *ripcmds[RIPCMD_MAX] = {"#0", "REQUEST", "RESPONSE", "TRACEON", "TRACEOFF", "POLL", "POLLENTRY"}; char inittracename[MAXPATHLEN+1]; static boolean_t file_trace; /* 1=tracing to file, not stdout */ static void tmsg(const char *, ...); const char * rip_strerror(int err) { const char *cp = strerror(err); static char msgbuf[64]; if (cp == NULL) { if (err == 0) { cp = "success"; } else { (void) snprintf(msgbuf, sizeof (msgbuf), "unknown error %d", err); cp = msgbuf; } } return (cp); } /* convert IP address to a string, but not into a single buffer */ char * naddr_ntoa(in_addr_t a) { #define NUM_BUFS 4 static int bufno; static struct { char str[INET_ADDRSTRLEN]; /* xxx.xxx.xxx.xxx\0 */ } bufs[NUM_BUFS]; char *s; struct in_addr addr; addr.s_addr = a; s = strcpy(bufs[bufno].str, inet_ntoa(addr)); bufno = (bufno+1) % NUM_BUFS; return (s); #undef NUM_BUFS } const char * saddr_ntoa(struct sockaddr_storage *ss) { return (ss == NULL) ? "?" : naddr_ntoa(S_ADDR(ss)); } static char * ts(time_t secs) { static char s[20]; secs += epoch.tv_sec; (void) strftime(s, sizeof (s), "%T", localtime(&secs)); return (s); } static char * ts_full(struct timeval *tv) { static char s[32]; time_t secs; int len; secs = tv->tv_sec + epoch.tv_sec; (void) strftime(s, sizeof (s), "%Y/%m/%d %T", localtime(&secs)); len = strlen(s); (void) snprintf(s + len, sizeof (s) - len, ".%06ld", tv->tv_usec); return (s); } /* * On each event, display a time stamp. * This assumes that 'now' is update once for each event, and * that at least now.tv_usec changes. */ static struct timeval lastlog_time; void lastlog(void) { if (lastlog_time.tv_sec != now.tv_sec || lastlog_time.tv_usec != now.tv_usec) { (void) fprintf(ftrace, "-- %s --\n", ts_full(&now)); lastlog_time = now; } } static void tmsg(const char *p, ...) { va_list args; if (ftrace != NULL) { lastlog(); va_start(args, p); (void) vfprintf(ftrace, p, args); (void) fputc('\n', ftrace); (void) fflush(ftrace); (void) va_end(args); } } void trace_close(int zap_stdio) { int fd; (void) fflush(stdout); (void) fflush(stderr); if (ftrace != NULL && zap_stdio) { if (ftrace != stdout) (void) fclose(ftrace); ftrace = NULL; fd = open("/dev/null", O_RDWR); if (isatty(STDIN_FILENO)) (void) dup2(fd, STDIN_FILENO); if (isatty(STDOUT_FILENO)) (void) dup2(fd, STDOUT_FILENO); if (isatty(STDERR_FILENO)) (void) dup2(fd, STDERR_FILENO); (void) close(fd); } lastlog_time.tv_sec = 0; } void trace_flush(void) { if (ftrace != NULL) { (void) fflush(ftrace); if (ferror(ftrace)) trace_off("tracing off: %s", rip_strerror(ferror(ftrace))); } } void trace_off(const char *p, ...) { va_list args; if (ftrace != NULL) { lastlog(); va_start(args, p); (void) vfprintf(ftrace, p, args); (void) fputc('\n', ftrace); (void) va_end(args); } trace_close(file_trace); new_tracelevel = tracelevel = 0; } /* log a change in tracing */ void tracelevel_msg(const char *pat, int dump) /* -1=no dump, 0=default, 1=force */ { static const char *off_msgs[MAX_TRACELEVEL] = { "Tracing actions stopped", "Tracing packets stopped", "Tracing packet contents stopped", "Tracing kernel changes stopped", "Tracing routing socket messages stopped", }; static const char *on_msgs[MAX_TRACELEVEL] = { "Tracing actions started", "Tracing packets started", "Tracing packet contents started", "Tracing kernel changes started", "Tracing routing socket messages started", }; uint_t old_tracelevel = tracelevel; if (new_tracelevel < 0) new_tracelevel = 0; else if (new_tracelevel > MAX_TRACELEVEL) new_tracelevel = MAX_TRACELEVEL; if (new_tracelevel < tracelevel) { if (new_tracelevel <= 0) { trace_off(pat, off_msgs[0]); } else { do { tmsg(pat, off_msgs[tracelevel]); } while (--tracelevel != new_tracelevel); } } else if (new_tracelevel > tracelevel) { do { tmsg(pat, on_msgs[tracelevel++]); } while (tracelevel != new_tracelevel); } if (dump > 0 || (dump == 0 && old_tracelevel == 0 && tracelevel != 0)) trace_dump(); } void set_tracefile(const char *filename, const char *pat, int dump) /* -1=no dump, 0=default, 1=force */ { struct stat stbuf; struct stat stbuf2; FILE *n_ftrace; const char *fn; int nfd; boolean_t allow_create; /* * main() calls this routine with "dump == -1". All others * call it with 0, so we take dump == -1 to mean "can create * the file." */ allow_create = (dump == -1); /* * Allow a null filename to increase the level if the trace file * is already open or if coming from a trusted source, such as * a signal or the command line. */ if (filename == NULL || filename[0] == '\0') { filename = NULL; if (ftrace == NULL) { if (inittracename[0] == '\0') { msglog("missing trace file name"); return; } fn = inittracename; } else { goto set_tracelevel; } } else if (strcmp(filename, "dump/../table") == 0) { trace_dump(); return; } else { /* * Allow the file specified with "-T file" to be reopened, * but require all other names specified over the net to * match the official path. The path can specify a directory * in which the file is to be created. */ if (strcmp(filename, inittracename) != 0) { if (strncmp(filename, PATH_TRACE, sizeof (PATH_TRACE)-1) != 0 || (strstr(filename, "../") != NULL)) { msglog("wrong trace file \"%s\"", filename); return; } if (stat(PATH_TRACE, &stbuf) == -1) { fn = PATH_TRACE; goto missing_file; } if (filename[sizeof (PATH_TRACE) - 1] != '\0' && (filename[sizeof (PATH_TRACE) - 1] != '/' || !S_ISDIR(stbuf.st_mode))) { goto bad_file_type; } if (S_ISDIR(stbuf.st_mode)) allow_create = _B_TRUE; } fn = filename; } /* fn cannot be null here */ /* If the new tracefile exists, it must be a regular file. */ if (lstat(fn, &stbuf) == -1) { if (!allow_create) goto missing_file; nfd = open(fn, O_CREAT|O_EXCL|O_WRONLY, 0644); if (nfd != -1 && fstat(nfd, &stbuf) == -1) { (void) close(nfd); goto missing_file; } } else if (S_ISREG(stbuf.st_mode)) { nfd = open(fn, O_APPEND|O_WRONLY, 0644); } else { goto bad_file_type; } if (nfd == -1 || (n_ftrace = fdopen(nfd, "a")) == NULL) { msglog("failed to open trace file \"%s\" %s", fn, rip_strerror(errno)); if (fn == inittracename) inittracename[0] = '\0'; if (nfd != -1) (void) close(nfd); return; } if (fstat(nfd, &stbuf2) == -1 || !S_ISREG(stbuf2.st_mode) || stbuf2.st_dev != stbuf.st_dev || stbuf2.st_ino != stbuf.st_ino) { msglog("trace file \"%s\" moved", fn); (void) fclose(n_ftrace); return; } tmsg("switch to trace file %s", fn); trace_close(file_trace = _B_TRUE); (void) dup2(nfd, STDOUT_FILENO); (void) dup2(nfd, STDERR_FILENO); if (fn != savetracename) (void) strlcpy(savetracename, fn, sizeof (savetracename) - 1); ftrace = n_ftrace; set_tracelevel: if (new_tracelevel == 0 || filename == NULL) new_tracelevel++; tracelevel_msg(pat, dump != 0 ? dump : (filename != NULL)); return; missing_file: msglog("trace \"%s\" missing", fn); return; bad_file_type: msglog("wrong type (%#x) of trace file \"%s\"", stbuf.st_mode, fn); } /* ARGSUSED */ void sigtrace_more(int s) { new_tracelevel++; sigtrace_pat = "SIGUSR1: %s"; if (signal(s, sigtrace_more) == SIG_ERR) msglog("signal: %s", rip_strerror(errno)); } /* ARGSUSED */ void sigtrace_less(int s) { new_tracelevel--; sigtrace_pat = "SIGUSR2: %s"; if (signal(s, sigtrace_less) == SIG_ERR) msglog("signal: %s", rip_strerror(errno)); } /* ARGSUSED */ void sigtrace_dump(int s) { trace_dump(); if (signal(s, sigtrace_dump) == SIG_ERR) msglog("signal: %s", rip_strerror(errno)); } /* Set tracing after a signal. */ void set_tracelevel(void) { if (new_tracelevel == tracelevel) return; /* * If tracing entirely off, and there was no tracefile specified * on the command line, then leave it off. */ if (new_tracelevel > tracelevel && ftrace == NULL) { if (savetracename[0] != '\0') { set_tracefile(savetracename, sigtrace_pat, 0); } else if (inittracename[0] != '\0') { set_tracefile(inittracename, sigtrace_pat, 0); } else { new_tracelevel = 0; return; } } else { tracelevel_msg(sigtrace_pat, 0); } } /* display an address */ char * addrname(in_addr_t addr, /* in network byte order */ in_addr_t mask, int force) /* 0=show mask if nonstandard, */ { /* 1=always show mask, 2=never */ #define NUM_BUFS 4 static int bufno; static struct { /* * this array can hold either of the following strings terminated * by a null character: * "xxx.xxx.xxx.xxx/xx" * "xxx.xxx.xxx.xxx (mask xxx.xxx.xxx.xxx)" * */ char str[2*INET_ADDRSTRLEN + sizeof (" (mask )")]; } bufs[NUM_BUFS]; char *s, *sp; in_addr_t dmask; int i, len; struct in_addr tmp_addr; tmp_addr.s_addr = addr; len = strlcpy(bufs[bufno].str, inet_ntoa(tmp_addr), sizeof (bufs[bufno].str)); s = bufs[bufno].str; bufno = (bufno+1) % NUM_BUFS; if (force == 1 || (force == 0 && mask != std_mask(addr))) { sp = &s[strlen(s)]; dmask = mask & -mask; if (mask + dmask == 0) { i = ffs(mask); (void) snprintf(sp, (sizeof (bufs[bufno].str) - len), "/%d", (NBBY * sizeof (in_addr_t) + 1) - i); } else { (void) snprintf(sp, (sizeof (bufs[bufno].str) - len), " (mask %s)", naddr_ntoa(htonl(mask))); } } return (s); #undef NUM_BUFS } /* display a bit-field */ struct or_bits { uint8_t origin; const char *origin_name; }; static struct or_bits origin_bits[] = { { RO_RIP, "RIP" }, { RO_RDISC, "RDISC" }, { RO_STATIC, "STATIC" }, { RO_LOOPBCK, "LOOPBCK" }, { RO_PTOPT, "PTOPT" }, { RO_NET_SYN, "NET_SYN" }, { RO_IF, "IF" }, { RO_FILE, "FILE" }, { RO_NONE, " " }, { 0, NULL} }; /* display a bit-field */ struct bits { uint64_t bits_mask; uint64_t bits_clear; const char *bits_name; }; static struct bits if_bits[] = { { IFF_BROADCAST, 0, "BROADCAST" }, { IFF_DEBUG, 0, "DEBUG" }, { IFF_LOOPBACK, 0, "LOOPBACK" }, { IFF_POINTOPOINT, 0, "POINTOPOINT" }, { IFF_NOTRAILERS, 0, "NOTRAILERS" }, { IFF_RUNNING, 0, "RUNNING" }, { IFF_NOARP, 0, "NOARP" }, { IFF_PROMISC, 0, "PROMISC" }, { IFF_ALLMULTI, 0, "ALLMULTI" }, { IFF_INTELLIGENT, 0, "INTELLIGENT" }, { IFF_MULTICAST, 0, "MULTICAST" }, { IFF_MULTI_BCAST, 0, "MULTI_BCAST" }, { IFF_UNNUMBERED, 0, "UNNUMBERED" }, { IFF_DHCPRUNNING, 0, "DHCP" }, { IFF_PRIVATE, 0, "PRIVATE" }, { IFF_NOXMIT, 0, "NOXMIT" }, { IFF_NOLOCAL, 0, "NOLOCAL" }, { IFF_DEPRECATED, 0, "DEPRECATED" }, { IFF_ADDRCONF, 0, "ADDRCONF" }, { IFF_ROUTER, 0, "ROUTER" }, { IFF_NONUD, 0, "NONUD" }, { IFF_ANYCAST, 0, "ANYCAST" }, { IFF_NORTEXCH, 0, "NORTEXCH" }, { IFF_IPV4, 0, "IPv4" }, { IFF_IPV6, 0, "IPv6" }, { IFF_NOFAILOVER, 0, "NOFAILOVER" }, { IFF_FAILED, 0, "FAILED" }, { IFF_STANDBY, 0, "STANDBY" }, { IFF_INACTIVE, 0, "INACTIVE" }, { IFF_OFFLINE, 0, "OFFLINE" }, { IFF_XRESOLV, 0, "XRESOLV" }, { IFF_COS_ENABLED, 0, "CoS" }, { IFF_PREFERRED, 0, "PREFERRED" }, { IFF_TEMPORARY, 0, "TEMPORARY" }, { IFF_FIXEDMTU, 0, "FIXEDMTU" }, { IFF_VIRTUAL, 0, "VIRTUAL"}, { IFF_IPMP, 0, "IPMP"}, { 0, 0, NULL} }; static struct bits is_bits[] = { { IS_ALIAS, 0, "ALIAS" }, { IS_SUBNET, 0, "" }, { IS_REMOTE, (IS_NO_RDISC | IS_BCAST_RDISC), "REMOTE" }, { IS_PASSIVE, (IS_NO_RDISC | IS_NO_RIP | IS_NO_SUPER_AG | IS_PM_RDISC | IS_NO_AG), "PASSIVE" }, { IS_EXTERNAL, 0, "EXTERNAL" }, { IS_CHECKED, 0, "" }, { IS_ALL_HOSTS, 0, "" }, { IS_ALL_ROUTERS, 0, "" }, { IS_DISTRUST, 0, "DISTRUST" }, { IS_BROKE, IS_SICK, "BROKEN" }, { IS_SICK, 0, "SICK" }, { IS_DUP, 0, "DUPLICATE" }, { IS_REDIRECT_OK, 0, "REDIRECT_OK" }, { IS_NEED_NET_SYN, 0, "" }, { IS_NO_AG, IS_NO_SUPER_AG, "NO_AG" }, { IS_NO_SUPER_AG, 0, "NO_SUPER_AG" }, { (IS_NO_RIPV1_IN | IS_NO_RIPV2_IN | IS_NO_RIPV1_OUT | IS_NO_RIPV2_OUT), 0, "NO_RIP" }, { (IS_NO_RIPV1_IN | IS_NO_RIPV1_OUT), 0, "RIPV2" }, { IS_NO_RIPV1_IN, 0, "NO_RIPV1_IN" }, { IS_NO_RIPV2_IN, 0, "NO_RIPV2_IN" }, { IS_NO_RIPV1_OUT, 0, "NO_RIPV1_OUT" }, { IS_NO_RIPV2_OUT, 0, "NO_RIPV2_OUT" }, { IS_NO_RIP_MCAST, 0, "NO_RIP_MCAST" }, { (IS_NO_ADV_IN | IS_NO_SOL_OUT | IS_NO_ADV_OUT), IS_BCAST_RDISC, "NO_RDISC" }, { IS_NO_SOL_OUT, 0, "NO_SOLICIT" }, { IS_SOL_OUT, 0, "SEND_SOLICIT" }, { IS_NO_ADV_OUT, IS_BCAST_RDISC, "NO_RDISC_ADV" }, { IS_ADV_OUT, 0, "RDISC_ADV" }, { IS_BCAST_RDISC, 0, "BCAST_RDISC" }, { IS_PM_RDISC, 0, "" }, { IS_NO_HOST, 0, "NO_HOST" }, { IS_SUPPRESS_RDISC, 0, "SUPPRESS_RDISC" }, { IS_FLUSH_RDISC, 0, "FLUSH_RDISC" }, { 0, 0, NULL} }; static struct bits rs_bits[] = { { RS_IF, 0, "IF" }, { RS_NET_INT, RS_NET_SYN, "NET_INT" }, { RS_NET_SYN, 0, "NET_SYN" }, { RS_SUBNET, 0, "" }, { RS_LOCAL, 0, "LOCAL" }, { RS_MHOME, 0, "MHOME" }, { RS_STATIC, 0, "STATIC" }, { RS_NOPROPAGATE, 0, "NOPROP" }, { RS_BADIF, 0, "BADIF" }, { 0, 0, NULL} }; static struct bits ks_bits[] = { { KS_NEW, 0, "NEW" }, { KS_DELETE, 0, "DELETE" }, { KS_ADD, 0, "ADD" }, { KS_CHANGE, 0, "CHANGE" }, { KS_DEL_ADD, 0, "DEL_ADD" }, { KS_STATIC, 0, "STATIC" }, { KS_GATEWAY, 0, "GATEWAY" }, { KS_DYNAMIC, 0, "DYNAMIC" }, { KS_DELETED, 0, "DELETED" }, { KS_PRIVATE, 0, "PRIVATE" }, { KS_CHECK, 0, "CHECK" }, { KS_IF, 0, "IF" }, { KS_PASSIVE, 0, "PASSIVE" }, { KS_DEPRE_IF, 0, "DEPRE_IF" }, { KS_FILE, 0, "FILE" }, { 0, 0, NULL} }; static void trace_bits(const struct bits *tbl, uint64_t field, boolean_t force) { uint64_t b; char c; if (force) { (void) putc('<', ftrace); c = '\0'; } else { c = '<'; } while (field != 0 && (b = tbl->bits_mask) != 0) { if ((b & field) == b) { if (tbl->bits_name[0] != '\0') { if (c != '\0') (void) putc(c, ftrace); (void) fprintf(ftrace, "%s", tbl->bits_name); c = '|'; } field &= ~(b | tbl->bits_clear); } tbl++; } if (field != 0) { if (c != '\0') (void) putc(c, ftrace); (void) fprintf(ftrace, "%#llx", field); c = '|'; } if (c != '<' || force) (void) fputs("> ", ftrace); } static char * trace_string(const struct bits *tbl, uint_t field, boolean_t force) { const struct bits *tbp; char *sbuf, *cp, chr; size_t slen; /* minimum default string */ slen = sizeof ("<0x12345678>"); for (tbp = tbl; tbp->bits_mask != 0; tbp++) if (tbp->bits_name[0] != '\0') slen += strlen(tbp->bits_name) + 1; if ((sbuf = malloc(slen)) == NULL) return (NULL); cp = sbuf; if (force) { *cp++ = '<'; chr = '\0'; } else { chr = '<'; } while (field != 0 && tbl->bits_mask != 0) { if ((tbl->bits_mask & field) == tbl->bits_mask) { if (tbl->bits_name[0] != '\0') { if (chr != '\0') *cp++ = chr; (void) strcpy(cp, tbl->bits_name); cp += strlen(tbl->bits_name); chr = '|'; } field &= ~(tbl->bits_mask | tbl->bits_clear); } tbl++; } if (field != 0) { if (chr != '\0') *cp++ = chr; cp += sprintf(cp, "%#x", field); chr = '|'; } if (chr != '<' || force) *cp++ = '>'; *cp = '\0'; return (sbuf); } char * if_bit_string(uint_t field, boolean_t force) { return (trace_string(if_bits, field, force)); } char * rtname(in_addr_t dst, in_addr_t mask, in_addr_t gate) { static char buf[sizeof ("xxx.xxx.xxx.xxx/xx-->xxx.xxx.xxx.xxx")]; int i; (void) snprintf(buf, sizeof (buf), "%-16s-->", addrname(dst, mask, 0)); i = strlen(buf); (void) snprintf(&buf[i], (sizeof (buf) -i), "%-*s", 15+24-MAX(24, i), naddr_ntoa(gate)); return (buf); } static void print_rts(struct rt_spare *rts, int force_metric, /* -1=suppress, 0=default */ int force_ifp, /* -1=suppress, 0=default */ int force_router, /* -1=suppress, 0=default, 1=display */ int force_tag, /* -1=suppress, 0=default, 1=display */ int force_time) /* 0=suppress, 1=display */ { int i; if (force_metric >= 0) (void) fprintf(ftrace, "metric=%-2d ", rts->rts_metric); if (force_ifp >= 0) (void) fprintf(ftrace, "%s ", (rts->rts_ifp == 0 ? "if?" : rts->rts_ifp->int_name)); if (force_router > 0 || (force_router == 0 && rts->rts_router != rts->rts_gate)) (void) fprintf(ftrace, "router=%s ", naddr_ntoa(rts->rts_router)); if (force_time > 0) (void) fprintf(ftrace, "%s ", ts(rts->rts_time)); if (force_tag > 0 || (force_tag == 0 && rts->rts_tag != 0)) (void) fprintf(ftrace, "tag=%#x ", ntohs(rts->rts_tag)); if (rts->rts_de_ag != 0) { for (i = 1; (uint_t)(1 << i) <= rts->rts_de_ag; i++) continue; (void) fprintf(ftrace, "de_ag=%d ", i); } (void) fprintf(ftrace, "flags 0x%x ", rts->rts_flags); } static void print_rtsorigin(const struct or_bits *tbl, uint8_t route_origin) { uint8_t tblentry; while ((tblentry = tbl->origin) != 0) { if (tblentry == route_origin) { (void) fprintf(ftrace, "origin=%s ", tbl->origin_name); } tbl++; } } void trace_if(const char *act, struct interface *ifp) { if (!TRACEACTIONS || ftrace == NULL) return; lastlog(); (void) fprintf(ftrace, "%-3s interface %-4s #%-3d ", act, ifp->int_name, ifp->int_phys != NULL ? ifp->int_phys->phyi_index : 0); (void) fprintf(ftrace, "%-15s-->%-15s", naddr_ntoa(ifp->int_addr), addrname(((ifp->int_if_flags & IFF_POINTOPOINT) ? ifp->int_dstaddr : htonl(ifp->int_net)), ifp->int_mask, 1)); if (ifp->int_metric != 0) (void) fprintf(ftrace, " metric=%d", ifp->int_metric); if (!IS_RIP_OUT_OFF(ifp->int_state) && ifp->int_d_metric != 0) (void) fprintf(ftrace, " fake_default=%d", ifp->int_d_metric); (void) fputs("\n ", ftrace); trace_bits(if_bits, ifp->int_if_flags, _B_FALSE); trace_bits(is_bits, ifp->int_state, _B_FALSE); (void) fputc('\n', ftrace); } void trace_khash(const struct khash *krt) { if (ftrace == NULL) return; lastlog(); (void) fprintf(ftrace, " %-15s-->%-15s metric=%d ", addrname(krt->k_dst, krt->k_mask, 0), naddr_ntoa(krt->k_gate), krt->k_metric); if (krt->k_ifp != NULL) (void) fprintf(ftrace, "ifp %s ", krt->k_ifp->int_name); else (void) fprintf(ftrace, "ifp NULL "); (void) fprintf(ftrace, "%s ", ts(krt->k_keep)); (void) fprintf(ftrace, "%s ", ts(krt->k_redirect_time)); trace_bits(ks_bits, krt->k_state, _B_TRUE); (void) fputc('\n', ftrace); } void trace_dr(const struct dr *drp) { if (ftrace == NULL) return; lastlog(); (void) fprintf(ftrace, " %-4s %-15s %s ", drp->dr_ifp != NULL ? drp->dr_ifp->int_name : "?", naddr_ntoa(drp->dr_gate), ts(drp->dr_ts)); (void) fprintf(ftrace, "%s %d %u\n", ts(drp->dr_life), SIGN_PREF(drp->dr_recv_pref), drp->dr_pref); } void trace_upslot(struct rt_entry *rt, struct rt_spare *rts, struct rt_spare *new) { if (!TRACEACTIONS || ftrace == NULL) return; if (rts->rts_gate == new->rts_gate && rts->rts_router == new->rts_router && rts->rts_metric == new->rts_metric && rts->rts_tag == new->rts_tag && rts->rts_de_ag == new->rts_de_ag) return; lastlog(); if (new->rts_gate == 0) { (void) fprintf(ftrace, "Del #%d %-35s ", (int)(rts - rt->rt_spares), rtname(rt->rt_dst, rt->rt_mask, rts->rts_gate)); print_rts(rts, 0, 0, 0, 0, (rts != rt->rt_spares || AGE_RT(rt->rt_state, rts->rts_origin, new->rts_ifp))); } else if (rts->rts_gate != RIP_DEFAULT) { (void) fprintf(ftrace, "Chg #%d %-35s ", (int)(rts - rt->rt_spares), rtname(rt->rt_dst, rt->rt_mask, rts->rts_gate)); print_rts(rts, 0, 0, rts->rts_gate != new->rts_gate, rts->rts_tag != new->rts_tag, rts != rt->rt_spares || AGE_RT(rt->rt_state, rts->rts_origin, rt->rt_ifp)); (void) fprintf(ftrace, "\n %19s%-16s ", "", (new->rts_gate != rts->rts_gate ? naddr_ntoa(new->rts_gate) : "")); print_rts(new, ((new->rts_metric == rts->rts_metric) ? -1 : 0), ((new->rts_ifp == rts->rts_ifp) ? -1 : 0), 0, rts->rts_tag != new->rts_tag, (new->rts_time != rts->rts_time && (rts != rt->rt_spares || AGE_RT(rt->rt_state, new->rts_origin, new->rts_ifp)))); } else { (void) fprintf(ftrace, "Add #%d %-35s ", (int)(rts - rt->rt_spares), rtname(rt->rt_dst, rt->rt_mask, new->rts_gate)); print_rts(new, 0, 0, 0, 0, (rts != rt->rt_spares || AGE_RT(rt->rt_state, new->rts_origin, new->rts_ifp))); } (void) fputc('\n', ftrace); } /* miscellaneous message checked by the caller */ void trace_misc(const char *p, ...) { va_list args; if (ftrace == NULL) return; lastlog(); va_start(args, p); (void) vfprintf(ftrace, p, args); (void) fputc('\n', ftrace); (void) va_end(args); } /* display a message if tracing actions */ void trace_act(const char *p, ...) { va_list args; if (!TRACEACTIONS || ftrace == NULL) return; lastlog(); va_start(args, p); (void) vfprintf(ftrace, p, args); (void) fputc('\n', ftrace); (void) va_end(args); } /* display a message if tracing packets */ void trace_pkt(const char *p, ...) { va_list args; if (!TRACEPACKETS || ftrace == NULL) return; lastlog(); va_start(args, p); (void) vfprintf(ftrace, p, args); (void) fputc('\n', ftrace); (void) va_end(args); } void trace_change(struct rt_entry *rt, uint16_t state, struct rt_spare *new, const char *label) { if (ftrace == NULL) return; if (rt->rt_metric == new->rts_metric && rt->rt_gate == new->rts_gate && rt->rt_router == new->rts_router && rt->rt_state == state && rt->rt_tag == new->rts_tag && rt->rt_de_ag == new->rts_de_ag) return; lastlog(); (void) fprintf(ftrace, "%s %-35s ", label, rtname(rt->rt_dst, rt->rt_mask, rt->rt_gate)); print_rts(rt->rt_spares, 0, 0, 0, 0, AGE_RT(rt->rt_state, rt->rt_spares->rts_origin, rt->rt_ifp)); print_rtsorigin(origin_bits, rt->rt_spares->rts_origin); trace_bits(rs_bits, rt->rt_state, rt->rt_state != state); (void) fprintf(ftrace, "\n%*s %19s%-16s ", strlen(label), "", "", (rt->rt_gate != new->rts_gate ? naddr_ntoa(new->rts_gate) : "")); print_rts(new, ((new->rts_metric == rt->rt_metric) ? -1 : 0), ((new->rts_ifp == rt->rt_ifp) ? -1 : 0), 0, rt->rt_tag != new->rts_tag, (rt->rt_time != new->rts_time && AGE_RT(rt->rt_state, new->rts_origin, new->rts_ifp))); if (rt->rt_state != state) { print_rtsorigin(origin_bits, new->rts_origin); trace_bits(rs_bits, state, _B_TRUE); } (void) fputc('\n', ftrace); } void trace_add_del(const char *action, struct rt_entry *rt) { if (ftrace == NULL) return; lastlog(); (void) fprintf(ftrace, "%s %-35s ", action, rtname(rt->rt_dst, rt->rt_mask, rt->rt_gate)); print_rts(rt->rt_spares, 0, 0, 0, 0, AGE_RT(rt->rt_state, rt->rt_spares->rts_origin, rt->rt_ifp)); print_rtsorigin(origin_bits, rt->rt_spares->rts_origin); trace_bits(rs_bits, rt->rt_state, _B_FALSE); (void) fputc('\n', ftrace); } /* ARGSUSED */ static int walk_trace(struct radix_node *rn, void *w) { #define RT ((struct rt_entry *)rn) struct rt_spare *rts; int i; (void) fprintf(ftrace, " %-35s ", rtname(RT->rt_dst, RT->rt_mask, RT->rt_gate)); print_rts(&RT->rt_spares[0], 0, 0, 0, 0, AGE_RT(RT->rt_state, RT->rt_spares[0].rts_origin, RT->rt_ifp)); print_rtsorigin(origin_bits, RT->rt_spares[0].rts_origin); trace_bits(rs_bits, RT->rt_state, _B_FALSE); if (RT->rt_poison_time >= now_garbage && RT->rt_poison_metric < RT->rt_metric) (void) fprintf(ftrace, "pm=%d@%s", RT->rt_poison_metric, ts(RT->rt_poison_time)); (void) fprintf(ftrace, "%d spare slots", RT->rt_num_spares); rts = &RT->rt_spares[1]; for (i = 1; i < RT->rt_num_spares; i++, rts++) { if (rts->rts_gate != RIP_DEFAULT) { (void) fprintf(ftrace, "\n #%d%15s%-16s ", i, "", naddr_ntoa(rts->rts_gate)); print_rts(rts, 0, 0, 0, 0, 1); print_rtsorigin(origin_bits, rts->rts_origin); } } (void) fputc('\n', ftrace); return (0); } void trace_dump(void) { struct interface *ifp; if (ftrace == NULL) return; lastlog(); /* * Warning: the rtquery.trace.* family of STC tests depend on * the log file format here. If you need to change this next * message, make sure that you change the TRACE_DUMP variable * as well. */ (void) fputs("current daemon state:\n", ftrace); for (ifp = ifnet; ifp != NULL; ifp = ifp->int_next) trace_if("", ifp); (void) fputs("Routes:\n", ftrace); (void) rn_walktree(rhead, walk_trace, NULL); (void) fputs("Kernel routes:\n", ftrace); kern_dump(); (void) fputs("Discovered routers:\n", ftrace); rdisc_dump(); } void trace_rip(const char *dir1, const char *dir2, struct sockaddr_in *who, struct interface *ifp, struct rip *msg, int size) /* total size of message */ { struct netinfo *n, *lim; #define NA ((struct netauth *)n) int i, seen_route; struct in_addr tmp_mask; if (!TRACEPACKETS || ftrace == NULL) return; lastlog(); if (msg->rip_cmd >= RIPCMD_MAX || msg->rip_vers == 0) { (void) fprintf(ftrace, "%s bad RIPv%d cmd=%d %s" " %s.%d size=%d\n", dir1, msg->rip_vers, msg->rip_cmd, dir2, naddr_ntoa(who->sin_addr.s_addr), ntohs(who->sin_port), size); return; } (void) fprintf(ftrace, "%s RIPv%d %s %s %s.%d%s%s\n", dir1, msg->rip_vers, ripcmds[msg->rip_cmd], dir2, naddr_ntoa(who->sin_addr.s_addr), ntohs(who->sin_port), ifp ? " via " : "", ifp ? ifp->int_name : ""); if (!TRACECONTENTS) return; seen_route = 0; switch (msg->rip_cmd) { case RIPCMD_REQUEST: case RIPCMD_RESPONSE: n = msg->rip_nets; tmp_mask.s_addr = n->n_mask; lim = n + (size - 4) / sizeof (struct netinfo); for (; n < lim; n++) { if (!seen_route && n->n_family == RIP_AF_UNSPEC && ntohl(n->n_metric) == HOPCNT_INFINITY && msg->rip_cmd == RIPCMD_REQUEST && (n+1 == lim || (n+2 == lim && (n+1)->n_family == RIP_AF_AUTH))) { (void) fputs("\tQUERY ", ftrace); if (n->n_dst != 0) (void) fprintf(ftrace, "%s ", naddr_ntoa(n->n_dst)); if (n->n_mask != 0) (void) fprintf(ftrace, "mask=%s ", inet_ntoa(tmp_mask)); if (n->n_nhop != 0) (void) fprintf(ftrace, "nhop=%s ", naddr_ntoa(n->n_nhop)); if (n->n_tag != 0) (void) fprintf(ftrace, "tag=%#x ", ntohs(n->n_tag)); (void) fputc('\n', ftrace); continue; } if (n->n_family == RIP_AF_AUTH) { if (NA->a_type == RIP_AUTH_PW && n == msg->rip_nets) { (void) fprintf(ftrace, "\tPassword" " Authentication: \"%s\"\n", qstring(NA->au.au_pw, RIP_AUTH_PW_LEN)); continue; } if (NA->a_type == RIP_AUTH_MD5 && n == msg->rip_nets) { (void) fprintf(ftrace, "\tMD5 Auth" " pkt_len=%d KeyID=%u" " auth_len=%d" " seqno=%#x" " rsvd=%#hx,%#hx\n", ntohs(NA->au.a_md5.md5_pkt_len), NA->au.a_md5.md5_keyid, NA->au.a_md5.md5_auth_len, ntohl(NA->au.a_md5.md5_seqno), ntohs(NA->au.a_md5.rsvd[0]), ntohs(NA->au.a_md5.rsvd[1])); continue; } (void) fprintf(ftrace, "\tAuthentication type %d: ", ntohs(NA->a_type)); for (i = 0; i < (int)sizeof (NA->au.au_pw); i++) (void) fprintf(ftrace, "%02x ", NA->au.au_pw[i]); (void) fputc('\n', ftrace); continue; } seen_route = 1; if (n->n_family != RIP_AF_INET) { (void) fprintf(ftrace, "\t(af %d) %-18s mask=%s ", ntohs(n->n_family), naddr_ntoa(n->n_dst), inet_ntoa(tmp_mask)); } else if (msg->rip_vers == RIPv1) { (void) fprintf(ftrace, "\t%-18s ", addrname(n->n_dst, ntohl(n->n_mask), n->n_mask == 0 ? 2 : 1)); } else { (void) fprintf(ftrace, "\t%-18s ", addrname(n->n_dst, ntohl(n->n_mask), n->n_mask == 0 ? 2 : 0)); } (void) fprintf(ftrace, "metric=%-2lu ", (unsigned long)ntohl(n->n_metric)); if (n->n_nhop != 0) (void) fprintf(ftrace, " nhop=%s ", naddr_ntoa(n->n_nhop)); if (n->n_tag != 0) (void) fprintf(ftrace, "tag=%#x", ntohs(n->n_tag)); (void) fputc('\n', ftrace); } if (size != (char *)n - (char *)msg) (void) fprintf(ftrace, "truncated record, len %d\n", size); break; case RIPCMD_TRACEON: (void) fprintf(ftrace, "\tfile=\"%.*s\"\n", size - 4, msg->rip_tracefile); break; case RIPCMD_TRACEOFF: break; } }