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|
/* $OpenBSD$ */
/*
* Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <zebra.h>
#include "ldpd.h"
#include "ldpe.h"
#include "lde.h"
#include "log.h"
#include <lib/log.h>
#include <lib/log_int.h>
#include "mpls.h"
static const char * const procnames[] = {
"parent",
"ldpe",
"lde"
};
void vlog(int, const char *, va_list);
void
logit(int pri, const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
vlog(pri, fmt, ap);
va_end(ap);
}
void
vlog(int pri, const char *fmt, va_list ap)
{
char buf[1024];
switch (ldpd_process) {
case PROC_LDE_ENGINE:
vsnprintf(buf, sizeof(buf), fmt, ap);
lde_imsg_compose_parent(IMSG_LOG, pri, buf, strlen(buf) + 1);
break;
case PROC_LDP_ENGINE:
vsnprintf(buf, sizeof(buf), fmt, ap);
ldpe_imsg_compose_parent(IMSG_LOG, pri, buf, strlen(buf) + 1);
break;
case PROC_MAIN:
vzlog(pri, fmt, ap);
break;
}
}
void
log_warn(const char *emsg, ...)
{
char *nfmt;
va_list ap;
/* best effort to even work in out of memory situations */
if (emsg == NULL)
logit(LOG_CRIT, "%s", strerror(errno));
else {
va_start(ap, emsg);
if (asprintf(&nfmt, "%s: %s", emsg, strerror(errno)) == -1) {
/* we tried it... */
vlog(LOG_CRIT, emsg, ap);
logit(LOG_CRIT, "%s", strerror(errno));
} else {
vlog(LOG_CRIT, nfmt, ap);
free(nfmt);
}
va_end(ap);
}
}
void
log_warnx(const char *emsg, ...)
{
va_list ap;
va_start(ap, emsg);
vlog(LOG_CRIT, emsg, ap);
va_end(ap);
}
void
log_info(const char *emsg, ...)
{
va_list ap;
va_start(ap, emsg);
vlog(LOG_INFO, emsg, ap);
va_end(ap);
}
void
log_notice(const char *emsg, ...)
{
va_list ap;
va_start(ap, emsg);
vlog(LOG_NOTICE, emsg, ap);
va_end(ap);
}
void
log_debug(const char *emsg, ...)
{
va_list ap;
va_start(ap, emsg);
vlog(LOG_DEBUG, emsg, ap);
va_end(ap);
}
void
fatal(const char *emsg)
{
if (emsg == NULL)
logit(LOG_CRIT, "fatal in %s: %s", procnames[ldpd_process],
strerror(errno));
else
if (errno)
logit(LOG_CRIT, "fatal in %s: %s: %s",
procnames[ldpd_process], emsg, strerror(errno));
else
logit(LOG_CRIT, "fatal in %s: %s",
procnames[ldpd_process], emsg);
exit(1);
}
void
fatalx(const char *emsg)
{
errno = 0;
fatal(emsg);
}
#define NUM_LOGS 4
const char *
log_sockaddr(void *vp)
{
static char buf[NUM_LOGS][NI_MAXHOST];
static int round = 0;
struct sockaddr *sa = vp;
round = (round + 1) % NUM_LOGS;
if (getnameinfo(sa, sockaddr_len(sa), buf[round], NI_MAXHOST, NULL, 0,
NI_NUMERICHOST))
return ("(unknown)");
else
return (buf[round]);
}
const char *
log_in6addr(const struct in6_addr *addr)
{
struct sockaddr_in6 sa_in6;
memset(&sa_in6, 0, sizeof(sa_in6));
#ifdef HAVE_STRUCT_SOCKADDR_IN_SIN_LEN
sa_in6.sin6_len = sizeof(sa_in6);
#endif
sa_in6.sin6_family = AF_INET6;
sa_in6.sin6_addr = *addr;
recoverscope(&sa_in6);
return (log_sockaddr(&sa_in6));
}
const char *
log_in6addr_scope(const struct in6_addr *addr, unsigned int ifindex)
{
struct sockaddr_in6 sa_in6;
memset(&sa_in6, 0, sizeof(sa_in6));
#ifdef HAVE_STRUCT_SOCKADDR_IN_SIN_LEN
sa_in6.sin6_len = sizeof(sa_in6);
#endif
sa_in6.sin6_family = AF_INET6;
sa_in6.sin6_addr = *addr;
addscope(&sa_in6, ifindex);
return (log_sockaddr(&sa_in6));
}
const char *
log_addr(int af, const union ldpd_addr *addr)
{
static char buf[NUM_LOGS][INET6_ADDRSTRLEN];
static int round = 0;
switch (af) {
case AF_INET:
round = (round + 1) % NUM_LOGS;
if (inet_ntop(AF_INET, &addr->v4, buf[round],
sizeof(buf[round])) == NULL)
return ("???");
return (buf[round]);
case AF_INET6:
return (log_in6addr(&addr->v6));
default:
break;
}
return ("???");
}
#define TF_BUFS 4
#define TF_LEN 32
char *
log_label(uint32_t label)
{
char *buf;
static char tfbuf[TF_BUFS][TF_LEN]; /* ring buffer */
static int idx = 0;
buf = tfbuf[idx++];
if (idx == TF_BUFS)
idx = 0;
switch (label) {
case NO_LABEL:
snprintf(buf, TF_LEN, "-");
break;
case MPLS_LABEL_IMPLNULL:
snprintf(buf, TF_LEN, "imp-null");
break;
case MPLS_LABEL_IPV4NULL:
case MPLS_LABEL_IPV6NULL:
snprintf(buf, TF_LEN, "exp-null");
break;
default:
snprintf(buf, TF_LEN, "%u", label);
break;
}
return (buf);
}
const char *
log_time(time_t t)
{
char *buf;
static char tfbuf[TF_BUFS][TF_LEN]; /* ring buffer */
static int idx = 0;
unsigned int sec, min, hrs, day, week;
buf = tfbuf[idx++];
if (idx == TF_BUFS)
idx = 0;
week = t;
sec = week % 60;
week /= 60;
min = week % 60;
week /= 60;
hrs = week % 24;
week /= 24;
day = week % 7;
week /= 7;
if (week > 0)
snprintf(buf, TF_LEN, "%02uw%01ud%02uh", week, day, hrs);
else if (day > 0)
snprintf(buf, TF_LEN, "%01ud%02uh%02um", day, hrs, min);
else
snprintf(buf, TF_LEN, "%02u:%02u:%02u", hrs, min, sec);
return (buf);
}
char *
log_hello_src(const struct hello_source *src)
{
static char buf[64];
switch (src->type) {
case HELLO_LINK:
snprintf(buf, sizeof(buf), "iface %s",
src->link.ia->iface->name);
break;
case HELLO_TARGETED:
snprintf(buf, sizeof(buf), "source %s",
log_addr(src->target->af, &src->target->addr));
break;
}
return (buf);
}
const char *
log_map(const struct map *map)
{
static char buf[128];
switch (map->type) {
case MAP_TYPE_WILDCARD:
if (snprintf(buf, sizeof(buf), "wildcard") < 0)
return ("???");
break;
case MAP_TYPE_PREFIX:
if (snprintf(buf, sizeof(buf), "%s/%u",
log_addr(map->fec.prefix.af, &map->fec.prefix.prefix),
map->fec.prefix.prefixlen) == -1)
return ("???");
break;
case MAP_TYPE_PWID:
if (snprintf(buf, sizeof(buf), "pw-id %u group-id %u (%s)",
map->fec.pwid.pwid, map->fec.pwid.group_id,
pw_type_name(map->fec.pwid.type)) == -1)
return ("???");
break;
case MAP_TYPE_TYPED_WCARD:
if (snprintf(buf, sizeof(buf), "typed wildcard") < 0)
return ("???");
switch (map->fec.twcard.type) {
case MAP_TYPE_PREFIX:
if (snprintf(buf + strlen(buf), sizeof(buf) -
strlen(buf), " (prefix, address-family %s)",
af_name(map->fec.twcard.u.prefix_af)) < 0)
return ("???");
break;
case MAP_TYPE_PWID:
if (snprintf(buf + strlen(buf), sizeof(buf) -
strlen(buf), " (pwid, type %s)",
pw_type_name(map->fec.twcard.u.pw_type)) < 0)
return ("???");
break;
default:
if (snprintf(buf + strlen(buf), sizeof(buf) -
strlen(buf), " (unknown type)") < 0)
return ("???");
break;
}
break;
default:
return ("???");
}
return (buf);
}
const char *
log_fec(const struct fec *fec)
{
static char buf[64];
union ldpd_addr addr;
switch (fec->type) {
case FEC_TYPE_IPV4:
addr.v4 = fec->u.ipv4.prefix;
if (snprintf(buf, sizeof(buf), "ipv4 %s/%u",
log_addr(AF_INET, &addr), fec->u.ipv4.prefixlen) == -1)
return ("???");
break;
case FEC_TYPE_IPV6:
addr.v6 = fec->u.ipv6.prefix;
if (snprintf(buf, sizeof(buf), "ipv6 %s/%u",
log_addr(AF_INET6, &addr), fec->u.ipv6.prefixlen) == -1)
return ("???");
break;
case FEC_TYPE_PWID:
if (snprintf(buf, sizeof(buf),
"pwid %u (%s) - %s",
fec->u.pwid.pwid, pw_type_name(fec->u.pwid.type),
inet_ntoa(fec->u.pwid.lsr_id)) == -1)
return ("???");
break;
default:
return ("???");
}
return (buf);
}
/* names */
const char *
af_name(int af)
{
switch (af) {
case AF_INET:
return ("ipv4");
case AF_INET6:
return ("ipv6");
#ifdef AF_MPLS
case AF_MPLS:
return ("mpls");
#endif
default:
return ("UNKNOWN");
}
}
const char *
socket_name(int type)
{
switch (type) {
case LDP_SOCKET_DISC:
return ("discovery");
case LDP_SOCKET_EDISC:
return ("extended discovery");
case LDP_SOCKET_SESSION:
return ("session");
default:
return ("UNKNOWN");
}
}
const char *
nbr_state_name(int state)
{
switch (state) {
case NBR_STA_PRESENT:
return ("PRESENT");
case NBR_STA_INITIAL:
return ("INITIALIZED");
case NBR_STA_OPENREC:
return ("OPENREC");
case NBR_STA_OPENSENT:
return ("OPENSENT");
case NBR_STA_OPER:
return ("OPERATIONAL");
default:
return ("UNKNOWN");
}
}
const char *
if_state_name(int state)
{
switch (state) {
case IF_STA_DOWN:
return ("DOWN");
case IF_STA_ACTIVE:
return ("ACTIVE");
default:
return ("UNKNOWN");
}
}
const char *
if_type_name(enum iface_type type)
{
switch (type) {
case IF_TYPE_POINTOPOINT:
return ("POINTOPOINT");
case IF_TYPE_BROADCAST:
return ("BROADCAST");
}
/* NOTREACHED */
return ("UNKNOWN");
}
const char *
msg_name(uint16_t msg)
{
static char buf[16];
switch (msg) {
case MSG_TYPE_NOTIFICATION:
return ("notification");
case MSG_TYPE_HELLO:
return ("hello");
case MSG_TYPE_INIT:
return ("initialization");
case MSG_TYPE_KEEPALIVE:
return ("keepalive");
case MSG_TYPE_CAPABILITY:
return ("capability");
case MSG_TYPE_ADDR:
return ("address");
case MSG_TYPE_ADDRWITHDRAW:
return ("address withdraw");
case MSG_TYPE_LABELMAPPING:
return ("label mapping");
case MSG_TYPE_LABELREQUEST:
return ("label request");
case MSG_TYPE_LABELWITHDRAW:
return ("label withdraw");
case MSG_TYPE_LABELRELEASE:
return ("label release");
case MSG_TYPE_LABELABORTREQ:
default:
snprintf(buf, sizeof(buf), "[%08x]", msg);
return (buf);
}
}
const char *
status_code_name(uint32_t status)
{
static char buf[16];
switch (status) {
case S_SUCCESS:
return ("Success");
case S_BAD_LDP_ID:
return ("Bad LDP Identifier");
case S_BAD_PROTO_VER:
return ("Bad Protocol Version");
case S_BAD_PDU_LEN:
return ("Bad PDU Length");
case S_UNKNOWN_MSG:
return ("Unknown Message Type");
case S_BAD_MSG_LEN:
return ("Bad Message Length");
case S_UNKNOWN_TLV:
return ("Unknown TLV");
case S_BAD_TLV_LEN:
return ("Bad TLV Length");
case S_BAD_TLV_VAL:
return ("Malformed TLV Value");
case S_HOLDTIME_EXP:
return ("Hold Timer Expired");
case S_SHUTDOWN:
return ("Shutdown");
case S_LOOP_DETECTED:
return ("Loop Detected");
case S_UNKNOWN_FEC:
return ("Unknown FEC");
case S_NO_ROUTE:
return ("No Route");
case S_NO_LABEL_RES:
return ("No Label Resources");
case S_AVAILABLE:
return ("Label Resources Available");
case S_NO_HELLO:
return ("Session Rejected, No Hello");
case S_PARM_ADV_MODE:
return ("Rejected Advertisement Mode Parameter");
case S_MAX_PDU_LEN:
return ("Rejected Max PDU Length Parameter");
case S_PARM_L_RANGE:
return ("Rejected Label Range Parameter");
case S_KEEPALIVE_TMR:
return ("KeepAlive Timer Expired");
case S_LAB_REQ_ABRT:
return ("Label Request Aborted");
case S_MISS_MSG:
return ("Missing Message Parameters");
case S_UNSUP_ADDR:
return ("Unsupported Address Family");
case S_KEEPALIVE_BAD:
return ("Bad KeepAlive Time");
case S_INTERN_ERR:
return ("Internal Error");
case S_ILLEGAL_CBIT:
return ("Illegal C-Bit");
case S_WRONG_CBIT:
return ("Wrong C-Bit");
case S_INCPT_BITRATE:
return ("Incompatible bit-rate");
case S_CEP_MISCONF:
return ("CEP-TDM mis-configuration");
case S_PW_STATUS:
return ("PW Status");
case S_UNASSIGN_TAI:
return ("Unassigned/Unrecognized TAI");
case S_MISCONF_ERR:
return ("Generic Misconfiguration Error");
case S_WITHDRAW_MTHD:
return ("Label Withdraw PW Status Method");
case S_UNSSUPORTDCAP:
return ("Unsupported Capability");
case S_ENDOFLIB:
return ("End-of-LIB");
case S_TRANS_MISMTCH:
return ("Transport Connection Mismatch");
case S_DS_NONCMPLNCE:
return ("Dual-Stack Noncompliance");
default:
snprintf(buf, sizeof(buf), "[%08x]", status);
return (buf);
}
}
const char *
pw_type_name(uint16_t pw_type)
{
static char buf[64];
switch (pw_type) {
case PW_TYPE_ETHERNET_TAGGED:
return ("Eth Tagged");
case PW_TYPE_ETHERNET:
return ("Ethernet");
case PW_TYPE_WILDCARD:
return ("Wildcard");
default:
snprintf(buf, sizeof(buf), "[%0x]", pw_type);
return (buf);
}
}
|