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-rw-r--r--lib/log.c662
1 files changed, 662 insertions, 0 deletions
diff --git a/lib/log.c b/lib/log.c
new file mode 100644
index 0000000..9548f26
--- /dev/null
+++ b/lib/log.c
@@ -0,0 +1,662 @@
+/*
+ * Logging of zebra
+ * Copyright (C) 1997, 1998, 1999 Kunihiro Ishiguro
+ *
+ * This file is part of GNU Zebra.
+ *
+ * GNU Zebra is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2, or (at your option) any
+ * later version.
+ *
+ * GNU Zebra is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; see the file COPYING; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#define FRR_DEFINE_DESC_TABLE
+
+#include <zebra.h>
+
+#include "zclient.h"
+#include "log.h"
+#include "memory.h"
+#include "command.h"
+#include "lib_errors.h"
+#include "lib/hook.h"
+#include "printfrr.h"
+#include "frr_pthread.h"
+
+#ifdef HAVE_LIBUNWIND
+#define UNW_LOCAL_ONLY
+#include <libunwind.h>
+#include <dlfcn.h>
+#endif
+
+/**
+ * Looks up a message in a message list by key.
+ *
+ * If the message is not found, returns the provided error message.
+ *
+ * Terminates when it hits a struct message that's all zeros.
+ *
+ * @param mz the message list
+ * @param kz the message key
+ * @param nf the message to return if not found
+ * @return the message
+ */
+const char *lookup_msg(const struct message *mz, int kz, const char *nf)
+{
+ static struct message nt = {0};
+ const char *rz = nf ? nf : "(no message found)";
+ const struct message *pnt;
+ for (pnt = mz; memcmp(pnt, &nt, sizeof(struct message)); pnt++)
+ if (pnt->key == kz) {
+ rz = pnt->str ? pnt->str : rz;
+ break;
+ }
+ return rz;
+}
+
+/* For time string format. */
+size_t frr_timestamp(int timestamp_precision, char *buf, size_t buflen)
+{
+ static struct {
+ time_t last;
+ size_t len;
+ char buf[28];
+ } cache;
+ struct timeval clock;
+
+ gettimeofday(&clock, NULL);
+
+ /* first, we update the cache if the time has changed */
+ if (cache.last != clock.tv_sec) {
+ struct tm tm;
+ cache.last = clock.tv_sec;
+ localtime_r(&cache.last, &tm);
+ cache.len = strftime(cache.buf, sizeof(cache.buf),
+ "%Y/%m/%d %H:%M:%S", &tm);
+ }
+ /* note: it's not worth caching the subsecond part, because
+ chances are that back-to-back calls are not sufficiently close
+ together
+ for the clock not to have ticked forward */
+
+ if (buflen > cache.len) {
+ memcpy(buf, cache.buf, cache.len);
+ if ((timestamp_precision > 0)
+ && (buflen > cache.len + 1 + timestamp_precision)) {
+ /* should we worry about locale issues? */
+ static const int divisor[] = {0, 100000, 10000, 1000,
+ 100, 10, 1};
+ int prec;
+ char *p = buf + cache.len + 1
+ + (prec = timestamp_precision);
+ *p-- = '\0';
+ while (prec > 6)
+ /* this is unlikely to happen, but protect anyway */
+ {
+ *p-- = '0';
+ prec--;
+ }
+ clock.tv_usec /= divisor[prec];
+ do {
+ *p-- = '0' + (clock.tv_usec % 10);
+ clock.tv_usec /= 10;
+ } while (--prec > 0);
+ *p = '.';
+ return cache.len + 1 + timestamp_precision;
+ }
+ buf[cache.len] = '\0';
+ return cache.len;
+ }
+ if (buflen > 0)
+ buf[0] = '\0';
+ return 0;
+}
+
+/*
+ * crash handling
+ *
+ * NB: only AS-Safe (async-signal) functions can be used here!
+ */
+
+/* Note: the goal here is to use only async-signal-safe functions. */
+void zlog_signal(int signo, const char *action, void *siginfo_v,
+ void *program_counter)
+{
+ siginfo_t *siginfo = siginfo_v;
+ time_t now;
+ char buf[sizeof("DEFAULT: Received signal S at T (si_addr 0xP, PC 0xP); aborting...")
+ + 100];
+ struct fbuf fb = { .buf = buf, .pos = buf, .len = sizeof(buf) };
+
+ time(&now);
+
+ bprintfrr(&fb, "Received signal %d at %lld", signo, (long long)now);
+ if (program_counter)
+ bprintfrr(&fb, " (si_addr 0x%tx, PC 0x%tx)",
+ (ptrdiff_t)siginfo->si_addr,
+ (ptrdiff_t)program_counter);
+ else
+ bprintfrr(&fb, " (si_addr 0x%tx)",
+ (ptrdiff_t)siginfo->si_addr);
+ bprintfrr(&fb, "; %s\n", action);
+
+ zlog_sigsafe(fb.buf, fb.pos - fb.buf);
+
+ zlog_backtrace_sigsafe(LOG_CRIT, program_counter);
+
+ fb.pos = buf;
+
+ struct thread *tc;
+ tc = pthread_getspecific(thread_current);
+
+ if (!tc)
+ bprintfrr(&fb, "no thread information available\n");
+ else
+ bprintfrr(&fb, "in thread %s scheduled from %s:%d %s()\n",
+ tc->xref->funcname, tc->xref->xref.file,
+ tc->xref->xref.line, tc->xref->xref.func);
+
+ zlog_sigsafe(fb.buf, fb.pos - fb.buf);
+}
+
+/* Log a backtrace using only async-signal-safe functions.
+ Needs to be enhanced to support syslog logging. */
+void zlog_backtrace_sigsafe(int priority, void *program_counter)
+{
+#ifdef HAVE_LIBUNWIND
+ char buf[256];
+ struct fbuf fb = { .buf = buf, .len = sizeof(buf) };
+ unw_cursor_t cursor;
+ unw_context_t uc;
+ unw_word_t ip, off, sp;
+ Dl_info dlinfo;
+
+ memset(&uc, 0, sizeof(uc));
+ memset(&cursor, 0, sizeof(cursor));
+
+ unw_getcontext(&uc);
+ unw_init_local(&cursor, &uc);
+ while (unw_step(&cursor) > 0) {
+ char name[128] = "?";
+
+ unw_get_reg(&cursor, UNW_REG_IP, &ip);
+ unw_get_reg(&cursor, UNW_REG_SP, &sp);
+
+ if (!unw_get_proc_name(&cursor, buf, sizeof(buf), &off))
+ snprintfrr(name, sizeof(name), "%s+%#lx",
+ buf, (long)off);
+
+ fb.pos = buf;
+ if (unw_is_signal_frame(&cursor))
+ bprintfrr(&fb, " ---- signal ----\n");
+ bprintfrr(&fb, "%-30s %16lx %16lx", name, (long)ip, (long)sp);
+ if (dladdr((void *)ip, &dlinfo))
+ bprintfrr(&fb, " %s (mapped at %p)",
+ dlinfo.dli_fname, dlinfo.dli_fbase);
+ bprintfrr(&fb, "\n");
+ zlog_sigsafe(fb.buf, fb.pos - fb.buf);
+ }
+#elif defined(HAVE_GLIBC_BACKTRACE)
+ void *array[64];
+ int size, i;
+ char buf[128];
+ struct fbuf fb = { .buf = buf, .pos = buf, .len = sizeof(buf) };
+ char **bt = NULL;
+
+ size = backtrace(array, array_size(array));
+ if (size <= 0 || (size_t)size > array_size(array))
+ return;
+
+ bprintfrr(&fb, "Backtrace for %d stack frames:", size);
+ zlog_sigsafe(fb.pos, fb.buf - fb.pos);
+
+ bt = backtrace_symbols(array, size);
+
+ for (i = 0; i < size; i++) {
+ fb.pos = buf;
+ if (bt)
+ bprintfrr(&fb, "%s", bt[i]);
+ else
+ bprintfrr(&fb, "[bt %d] 0x%tx", i,
+ (ptrdiff_t)(array[i]));
+ zlog_sigsafe(fb.buf, fb.pos - fb.buf);
+ }
+ if (bt)
+ free(bt);
+#endif /* HAVE_STRACK_TRACE */
+}
+
+void zlog_backtrace(int priority)
+{
+#ifdef HAVE_LIBUNWIND
+ char buf[100];
+ unw_cursor_t cursor = {};
+ unw_context_t uc;
+ unw_word_t ip, off, sp;
+ Dl_info dlinfo;
+
+ unw_getcontext(&uc);
+ unw_init_local(&cursor, &uc);
+ zlog(priority, "Backtrace:");
+ while (unw_step(&cursor) > 0) {
+ char name[128] = "?";
+
+ unw_get_reg(&cursor, UNW_REG_IP, &ip);
+ unw_get_reg(&cursor, UNW_REG_SP, &sp);
+
+ if (unw_is_signal_frame(&cursor))
+ zlog(priority, " ---- signal ----");
+
+ if (!unw_get_proc_name(&cursor, buf, sizeof(buf), &off))
+ snprintf(name, sizeof(name), "%s+%#lx",
+ buf, (long)off);
+
+ if (dladdr((void *)ip, &dlinfo))
+ zlog(priority, "%-30s %16lx %16lx %s (mapped at %p)",
+ name, (long)ip, (long)sp,
+ dlinfo.dli_fname, dlinfo.dli_fbase);
+ else
+ zlog(priority, "%-30s %16lx %16lx",
+ name, (long)ip, (long)sp);
+ }
+#elif defined(HAVE_GLIBC_BACKTRACE)
+ void *array[20];
+ int size, i;
+ char **strings;
+
+ size = backtrace(array, array_size(array));
+ if (size <= 0 || (size_t)size > array_size(array)) {
+ flog_err_sys(
+ EC_LIB_SYSTEM_CALL,
+ "Cannot get backtrace, returned invalid # of frames %d (valid range is between 1 and %lu)",
+ size, (unsigned long)(array_size(array)));
+ return;
+ }
+ zlog(priority, "Backtrace for %d stack frames:", size);
+ if (!(strings = backtrace_symbols(array, size))) {
+ flog_err_sys(EC_LIB_SYSTEM_CALL,
+ "Cannot get backtrace symbols (out of memory?)");
+ for (i = 0; i < size; i++)
+ zlog(priority, "[bt %d] %p", i, array[i]);
+ } else {
+ for (i = 0; i < size; i++)
+ zlog(priority, "[bt %d] %s", i, strings[i]);
+ free(strings);
+ }
+#else /* !HAVE_GLIBC_BACKTRACE && !HAVE_LIBUNWIND */
+ zlog(priority, "No backtrace available on this platform.");
+#endif
+}
+
+void zlog_thread_info(int log_level)
+{
+ struct thread *tc;
+ tc = pthread_getspecific(thread_current);
+
+ if (tc)
+ zlog(log_level,
+ "Current thread function %s, scheduled from file %s, line %u in %s()",
+ tc->xref->funcname, tc->xref->xref.file,
+ tc->xref->xref.line, tc->xref->xref.func);
+ else
+ zlog(log_level, "Current thread not known/applicable");
+}
+
+void memory_oom(size_t size, const char *name)
+{
+ zlog(LOG_CRIT,
+ "out of memory: failed to allocate %zu bytes for %s object",
+ size, name);
+ zlog_backtrace(LOG_CRIT);
+ log_memstats(stderr, "log");
+ abort();
+}
+
+/* Wrapper around strerror to handle case where it returns NULL. */
+const char *safe_strerror(int errnum)
+{
+ const char *s = strerror(errnum);
+ return (s != NULL) ? s : "Unknown error";
+}
+
+#define DESC_ENTRY(T) [(T)] = { (T), (#T), '\0' }
+static const struct zebra_desc_table command_types[] = {
+ DESC_ENTRY(ZEBRA_INTERFACE_ADD),
+ DESC_ENTRY(ZEBRA_INTERFACE_DELETE),
+ DESC_ENTRY(ZEBRA_INTERFACE_ADDRESS_ADD),
+ DESC_ENTRY(ZEBRA_INTERFACE_ADDRESS_DELETE),
+ DESC_ENTRY(ZEBRA_INTERFACE_UP),
+ DESC_ENTRY(ZEBRA_INTERFACE_DOWN),
+ DESC_ENTRY(ZEBRA_INTERFACE_SET_MASTER),
+ DESC_ENTRY(ZEBRA_ROUTE_ADD),
+ DESC_ENTRY(ZEBRA_ROUTE_DELETE),
+ DESC_ENTRY(ZEBRA_ROUTE_NOTIFY_OWNER),
+ DESC_ENTRY(ZEBRA_REDISTRIBUTE_ADD),
+ DESC_ENTRY(ZEBRA_REDISTRIBUTE_DELETE),
+ DESC_ENTRY(ZEBRA_REDISTRIBUTE_DEFAULT_ADD),
+ DESC_ENTRY(ZEBRA_REDISTRIBUTE_DEFAULT_DELETE),
+ DESC_ENTRY(ZEBRA_ROUTER_ID_ADD),
+ DESC_ENTRY(ZEBRA_ROUTER_ID_DELETE),
+ DESC_ENTRY(ZEBRA_ROUTER_ID_UPDATE),
+ DESC_ENTRY(ZEBRA_HELLO),
+ DESC_ENTRY(ZEBRA_CAPABILITIES),
+ DESC_ENTRY(ZEBRA_NEXTHOP_REGISTER),
+ DESC_ENTRY(ZEBRA_NEXTHOP_UNREGISTER),
+ DESC_ENTRY(ZEBRA_NEXTHOP_UPDATE),
+ DESC_ENTRY(ZEBRA_INTERFACE_NBR_ADDRESS_ADD),
+ DESC_ENTRY(ZEBRA_INTERFACE_NBR_ADDRESS_DELETE),
+ DESC_ENTRY(ZEBRA_INTERFACE_BFD_DEST_UPDATE),
+ DESC_ENTRY(ZEBRA_BFD_DEST_REGISTER),
+ DESC_ENTRY(ZEBRA_BFD_DEST_DEREGISTER),
+ DESC_ENTRY(ZEBRA_BFD_DEST_UPDATE),
+ DESC_ENTRY(ZEBRA_BFD_DEST_REPLAY),
+ DESC_ENTRY(ZEBRA_REDISTRIBUTE_ROUTE_ADD),
+ DESC_ENTRY(ZEBRA_REDISTRIBUTE_ROUTE_DEL),
+ DESC_ENTRY(ZEBRA_VRF_UNREGISTER),
+ DESC_ENTRY(ZEBRA_VRF_ADD),
+ DESC_ENTRY(ZEBRA_VRF_DELETE),
+ DESC_ENTRY(ZEBRA_VRF_LABEL),
+ DESC_ENTRY(ZEBRA_INTERFACE_VRF_UPDATE),
+ DESC_ENTRY(ZEBRA_BFD_CLIENT_REGISTER),
+ DESC_ENTRY(ZEBRA_BFD_CLIENT_DEREGISTER),
+ DESC_ENTRY(ZEBRA_INTERFACE_ENABLE_RADV),
+ DESC_ENTRY(ZEBRA_INTERFACE_DISABLE_RADV),
+ DESC_ENTRY(ZEBRA_NEXTHOP_LOOKUP_MRIB),
+ DESC_ENTRY(ZEBRA_INTERFACE_LINK_PARAMS),
+ DESC_ENTRY(ZEBRA_MPLS_LABELS_ADD),
+ DESC_ENTRY(ZEBRA_MPLS_LABELS_DELETE),
+ DESC_ENTRY(ZEBRA_MPLS_LABELS_REPLACE),
+ DESC_ENTRY(ZEBRA_SR_POLICY_SET),
+ DESC_ENTRY(ZEBRA_SR_POLICY_DELETE),
+ DESC_ENTRY(ZEBRA_SR_POLICY_NOTIFY_STATUS),
+ DESC_ENTRY(ZEBRA_IPMR_ROUTE_STATS),
+ DESC_ENTRY(ZEBRA_LABEL_MANAGER_CONNECT),
+ DESC_ENTRY(ZEBRA_LABEL_MANAGER_CONNECT_ASYNC),
+ DESC_ENTRY(ZEBRA_GET_LABEL_CHUNK),
+ DESC_ENTRY(ZEBRA_RELEASE_LABEL_CHUNK),
+ DESC_ENTRY(ZEBRA_FEC_REGISTER),
+ DESC_ENTRY(ZEBRA_FEC_UNREGISTER),
+ DESC_ENTRY(ZEBRA_FEC_UPDATE),
+ DESC_ENTRY(ZEBRA_ADVERTISE_ALL_VNI),
+ DESC_ENTRY(ZEBRA_ADVERTISE_DEFAULT_GW),
+ DESC_ENTRY(ZEBRA_ADVERTISE_SVI_MACIP),
+ DESC_ENTRY(ZEBRA_ADVERTISE_SUBNET),
+ DESC_ENTRY(ZEBRA_LOCAL_ES_ADD),
+ DESC_ENTRY(ZEBRA_LOCAL_ES_DEL),
+ DESC_ENTRY(ZEBRA_REMOTE_ES_VTEP_ADD),
+ DESC_ENTRY(ZEBRA_REMOTE_ES_VTEP_DEL),
+ DESC_ENTRY(ZEBRA_LOCAL_ES_EVI_ADD),
+ DESC_ENTRY(ZEBRA_LOCAL_ES_EVI_DEL),
+ DESC_ENTRY(ZEBRA_VNI_ADD),
+ DESC_ENTRY(ZEBRA_VNI_DEL),
+ DESC_ENTRY(ZEBRA_L3VNI_ADD),
+ DESC_ENTRY(ZEBRA_L3VNI_DEL),
+ DESC_ENTRY(ZEBRA_REMOTE_VTEP_ADD),
+ DESC_ENTRY(ZEBRA_REMOTE_VTEP_DEL),
+ DESC_ENTRY(ZEBRA_MACIP_ADD),
+ DESC_ENTRY(ZEBRA_MACIP_DEL),
+ DESC_ENTRY(ZEBRA_IP_PREFIX_ROUTE_ADD),
+ DESC_ENTRY(ZEBRA_IP_PREFIX_ROUTE_DEL),
+ DESC_ENTRY(ZEBRA_REMOTE_MACIP_ADD),
+ DESC_ENTRY(ZEBRA_REMOTE_MACIP_DEL),
+ DESC_ENTRY(ZEBRA_DUPLICATE_ADDR_DETECTION),
+ DESC_ENTRY(ZEBRA_PW_ADD),
+ DESC_ENTRY(ZEBRA_PW_DELETE),
+ DESC_ENTRY(ZEBRA_PW_SET),
+ DESC_ENTRY(ZEBRA_PW_UNSET),
+ DESC_ENTRY(ZEBRA_PW_STATUS_UPDATE),
+ DESC_ENTRY(ZEBRA_RULE_ADD),
+ DESC_ENTRY(ZEBRA_RULE_DELETE),
+ DESC_ENTRY(ZEBRA_RULE_NOTIFY_OWNER),
+ DESC_ENTRY(ZEBRA_TABLE_MANAGER_CONNECT),
+ DESC_ENTRY(ZEBRA_GET_TABLE_CHUNK),
+ DESC_ENTRY(ZEBRA_RELEASE_TABLE_CHUNK),
+ DESC_ENTRY(ZEBRA_IPSET_CREATE),
+ DESC_ENTRY(ZEBRA_IPSET_DESTROY),
+ DESC_ENTRY(ZEBRA_IPSET_ENTRY_ADD),
+ DESC_ENTRY(ZEBRA_IPSET_ENTRY_DELETE),
+ DESC_ENTRY(ZEBRA_IPSET_NOTIFY_OWNER),
+ DESC_ENTRY(ZEBRA_IPSET_ENTRY_NOTIFY_OWNER),
+ DESC_ENTRY(ZEBRA_IPTABLE_ADD),
+ DESC_ENTRY(ZEBRA_IPTABLE_DELETE),
+ DESC_ENTRY(ZEBRA_IPTABLE_NOTIFY_OWNER),
+ DESC_ENTRY(ZEBRA_VXLAN_FLOOD_CONTROL),
+ DESC_ENTRY(ZEBRA_VXLAN_SG_ADD),
+ DESC_ENTRY(ZEBRA_VXLAN_SG_DEL),
+ DESC_ENTRY(ZEBRA_VXLAN_SG_REPLAY),
+ DESC_ENTRY(ZEBRA_MLAG_PROCESS_UP),
+ DESC_ENTRY(ZEBRA_MLAG_PROCESS_DOWN),
+ DESC_ENTRY(ZEBRA_MLAG_CLIENT_REGISTER),
+ DESC_ENTRY(ZEBRA_MLAG_CLIENT_UNREGISTER),
+ DESC_ENTRY(ZEBRA_MLAG_FORWARD_MSG),
+ DESC_ENTRY(ZEBRA_ERROR),
+ DESC_ENTRY(ZEBRA_CLIENT_CAPABILITIES),
+ DESC_ENTRY(ZEBRA_OPAQUE_MESSAGE),
+ DESC_ENTRY(ZEBRA_OPAQUE_REGISTER),
+ DESC_ENTRY(ZEBRA_OPAQUE_UNREGISTER),
+ DESC_ENTRY(ZEBRA_NEIGH_DISCOVER),
+ DESC_ENTRY(ZEBRA_NHG_ADD),
+ DESC_ENTRY(ZEBRA_NHG_DEL),
+ DESC_ENTRY(ZEBRA_NHG_NOTIFY_OWNER),
+ DESC_ENTRY(ZEBRA_ROUTE_NOTIFY_REQUEST),
+ DESC_ENTRY(ZEBRA_CLIENT_CLOSE_NOTIFY),
+ DESC_ENTRY(ZEBRA_EVPN_REMOTE_NH_ADD),
+ DESC_ENTRY(ZEBRA_EVPN_REMOTE_NH_DEL),
+ DESC_ENTRY(ZEBRA_NHRP_NEIGH_ADDED),
+ DESC_ENTRY(ZEBRA_NHRP_NEIGH_REMOVED),
+ DESC_ENTRY(ZEBRA_NHRP_NEIGH_GET),
+ DESC_ENTRY(ZEBRA_NHRP_NEIGH_REGISTER),
+ DESC_ENTRY(ZEBRA_NHRP_NEIGH_UNREGISTER),
+ DESC_ENTRY(ZEBRA_NEIGH_IP_ADD),
+ DESC_ENTRY(ZEBRA_NEIGH_IP_DEL),
+ DESC_ENTRY(ZEBRA_CONFIGURE_ARP),
+ DESC_ENTRY(ZEBRA_GRE_GET),
+ DESC_ENTRY(ZEBRA_GRE_UPDATE),
+ DESC_ENTRY(ZEBRA_GRE_SOURCE_SET)};
+#undef DESC_ENTRY
+
+static const struct zebra_desc_table unknown = {0, "unknown", '?'};
+
+static const struct zebra_desc_table *zroute_lookup(unsigned int zroute)
+{
+ unsigned int i;
+
+ if (zroute >= array_size(route_types)) {
+ flog_err(EC_LIB_DEVELOPMENT, "unknown zebra route type: %u",
+ zroute);
+ return &unknown;
+ }
+ if (zroute == route_types[zroute].type)
+ return &route_types[zroute];
+ for (i = 0; i < array_size(route_types); i++) {
+ if (zroute == route_types[i].type) {
+ zlog_warn(
+ "internal error: route type table out of order while searching for %u, please notify developers",
+ zroute);
+ return &route_types[i];
+ }
+ }
+ flog_err(EC_LIB_DEVELOPMENT,
+ "internal error: cannot find route type %u in table!", zroute);
+ return &unknown;
+}
+
+const char *zebra_route_string(unsigned int zroute)
+{
+ return zroute_lookup(zroute)->string;
+}
+
+char zebra_route_char(unsigned int zroute)
+{
+ return zroute_lookup(zroute)->chr;
+}
+
+const char *zserv_command_string(unsigned int command)
+{
+ if (command >= array_size(command_types)) {
+ flog_err(EC_LIB_DEVELOPMENT, "unknown zserv command type: %u",
+ command);
+ return unknown.string;
+ }
+ return command_types[command].string;
+}
+
+int proto_name2num(const char *s)
+{
+ unsigned i;
+
+ for (i = 0; i < array_size(route_types); ++i)
+ if (strcasecmp(s, route_types[i].string) == 0)
+ return route_types[i].type;
+ return -1;
+}
+
+int proto_redistnum(int afi, const char *s)
+{
+ if (!s)
+ return -1;
+
+ if (afi == AFI_IP) {
+ if (strmatch(s, "kernel"))
+ return ZEBRA_ROUTE_KERNEL;
+ else if (strmatch(s, "connected"))
+ return ZEBRA_ROUTE_CONNECT;
+ else if (strmatch(s, "static"))
+ return ZEBRA_ROUTE_STATIC;
+ else if (strmatch(s, "rip"))
+ return ZEBRA_ROUTE_RIP;
+ else if (strmatch(s, "eigrp"))
+ return ZEBRA_ROUTE_EIGRP;
+ else if (strmatch(s, "ospf"))
+ return ZEBRA_ROUTE_OSPF;
+ else if (strmatch(s, "isis"))
+ return ZEBRA_ROUTE_ISIS;
+ else if (strmatch(s, "bgp"))
+ return ZEBRA_ROUTE_BGP;
+ else if (strmatch(s, "table"))
+ return ZEBRA_ROUTE_TABLE;
+ else if (strmatch(s, "vnc"))
+ return ZEBRA_ROUTE_VNC;
+ else if (strmatch(s, "vnc-direct"))
+ return ZEBRA_ROUTE_VNC_DIRECT;
+ else if (strmatch(s, "nhrp"))
+ return ZEBRA_ROUTE_NHRP;
+ else if (strmatch(s, "babel"))
+ return ZEBRA_ROUTE_BABEL;
+ else if (strmatch(s, "sharp"))
+ return ZEBRA_ROUTE_SHARP;
+ else if (strmatch(s, "openfabric"))
+ return ZEBRA_ROUTE_OPENFABRIC;
+ }
+ if (afi == AFI_IP6) {
+ if (strmatch(s, "kernel"))
+ return ZEBRA_ROUTE_KERNEL;
+ else if (strmatch(s, "connected"))
+ return ZEBRA_ROUTE_CONNECT;
+ else if (strmatch(s, "static"))
+ return ZEBRA_ROUTE_STATIC;
+ else if (strmatch(s, "ripng"))
+ return ZEBRA_ROUTE_RIPNG;
+ else if (strmatch(s, "ospf6"))
+ return ZEBRA_ROUTE_OSPF6;
+ else if (strmatch(s, "isis"))
+ return ZEBRA_ROUTE_ISIS;
+ else if (strmatch(s, "bgp"))
+ return ZEBRA_ROUTE_BGP;
+ else if (strmatch(s, "table"))
+ return ZEBRA_ROUTE_TABLE;
+ else if (strmatch(s, "vnc"))
+ return ZEBRA_ROUTE_VNC;
+ else if (strmatch(s, "vnc-direct"))
+ return ZEBRA_ROUTE_VNC_DIRECT;
+ else if (strmatch(s, "nhrp"))
+ return ZEBRA_ROUTE_NHRP;
+ else if (strmatch(s, "babel"))
+ return ZEBRA_ROUTE_BABEL;
+ else if (strmatch(s, "sharp"))
+ return ZEBRA_ROUTE_SHARP;
+ else if (strmatch(s, "openfabric"))
+ return ZEBRA_ROUTE_OPENFABRIC;
+ }
+ return -1;
+}
+
+void zlog_hexdump(const void *mem, size_t len)
+{
+ char line[64];
+ const uint8_t *src = mem;
+ const uint8_t *end = src + len;
+
+ if (len == 0) {
+ zlog_debug("%016lx: (zero length / no data)", (long)src);
+ return;
+ }
+
+ while (src < end) {
+ struct fbuf fb = {
+ .buf = line,
+ .pos = line,
+ .len = sizeof(line),
+ };
+ const uint8_t *lineend = src + 8;
+ unsigned line_bytes = 0;
+
+ bprintfrr(&fb, "%016lx: ", (long)src);
+
+ while (src < lineend && src < end) {
+ bprintfrr(&fb, "%02x ", *src++);
+ line_bytes++;
+ }
+ if (line_bytes < 8)
+ bprintfrr(&fb, "%*s", (8 - line_bytes) * 3, "");
+
+ src -= line_bytes;
+ while (src < lineend && src < end && fb.pos < fb.buf + fb.len) {
+ uint8_t byte = *src++;
+
+ if (isprint(byte))
+ *fb.pos++ = byte;
+ else
+ *fb.pos++ = '.';
+ }
+
+ zlog_debug("%.*s", (int)(fb.pos - fb.buf), fb.buf);
+ }
+}
+
+const char *zlog_sanitize(char *buf, size_t bufsz, const void *in, size_t inlen)
+{
+ const char *inbuf = in;
+ char *pos = buf, *end = buf + bufsz;
+ const char *iend = inbuf + inlen;
+
+ memset(buf, 0, bufsz);
+ for (; inbuf < iend; inbuf++) {
+ /* don't write partial escape sequence */
+ if (end - pos < 5)
+ break;
+
+ if (*inbuf == '\n')
+ snprintf(pos, end - pos, "\\n");
+ else if (*inbuf == '\r')
+ snprintf(pos, end - pos, "\\r");
+ else if (*inbuf == '\t')
+ snprintf(pos, end - pos, "\\t");
+ else if (*inbuf < ' ' || *inbuf == '"' || *inbuf >= 127)
+ snprintf(pos, end - pos, "\\x%02hhx", *inbuf);
+ else
+ *pos = *inbuf;
+
+ pos += strlen(pos);
+ }
+ return buf;
+}