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route.c
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route.c
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/*
* Handling of ip routing.
*
* Copyright (C) 2009-2012 Olaf Kirch <okir@suse.de>
* Copyright (C) 2012-2022 SUSE LLC
*
* This program 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 of the License, or
* (at your option) any later version.
*
* This program 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. If not, see <http://www.gnu.org/licenses/>.
*
* Authors:
* Olaf Kirch
* Marius Tomaschewski
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdlib.h>
#include <limits.h>
#include <netlink/netlink.h>
#if !defined(IP6_RT_PRIO_USER) || !defined(IP6_RT_PRIO_ADDRCONF)
#include <linux/ipv6_route.h>
#endif
#include <wicked/logging.h>
#include <wicked/netinfo.h>
#include <wicked/route.h>
#include "util_priv.h"
#include "debug.h"
#define NI_ROUTE_ARRAY_CHUNK 16
#define NI_RULE_ARRAY_CHUNK 4
#define IPROUTE2_RT_TABLES_FILE "/etc/iproute2/rt_tables"
/*
* Names for route type
*/
static const ni_intmap_t ni_route_type_names[] = {
{ "unicast", RTN_UNICAST },
{ "local", RTN_LOCAL },
{ "broadcast", RTN_BROADCAST },
{ "anycast", RTN_ANYCAST },
{ "multicast", RTN_MULTICAST },
{ "blackhole", RTN_BLACKHOLE },
{ "unreachable", RTN_UNREACHABLE },
{ "prohibit", RTN_PROHIBIT },
{ "throw", RTN_THROW },
{ "nat", RTN_NAT },
{ "xresolve", RTN_XRESOLVE },
{ NULL, RTN_UNSPEC },
};
/*
* Names for route table
*/
static const ni_intmap_t ni_route_table_names[] = {
{ "compat", RT_TABLE_COMPAT },
{ "default", RT_TABLE_DEFAULT },
{ "main", RT_TABLE_MAIN },
{ "local", RT_TABLE_LOCAL },
{ NULL, RT_TABLE_UNSPEC },
};
/*
* Names for route scope
*/
static const ni_intmap_t ni_route_scope_names[] = {
{ "universe", RT_SCOPE_UNIVERSE },
{ "global", RT_SCOPE_UNIVERSE },
{ "site", RT_SCOPE_SITE },
{ "link", RT_SCOPE_LINK },
{ "host", RT_SCOPE_HOST },
{ "nowhere", RT_SCOPE_NOWHERE },
{ NULL, RT_SCOPE_UNIVERSE }
};
/*
* Names for route protocol
*/
static const ni_intmap_t ni_route_protocol_names[] = {
{ "redirect", RTPROT_REDIRECT },
{ "kernel", RTPROT_KERNEL },
{ "boot", RTPROT_BOOT },
{ "static", RTPROT_STATIC },
/* protocols >= STATIC are not interpreted by the kernel */
{ "gated", RTPROT_GATED },
{ "ra", RTPROT_RA },
{ "mrt", RTPROT_MRT },
{ "zebra", RTPROT_ZEBRA },
{ "bird", RTPROT_BIRD },
{ "dnrouted", RTPROT_DNROUTED },
{ "xorp", RTPROT_XORP },
{ "ntk", RTPROT_NTK },
{ "dhcp", RTPROT_DHCP },
{ NULL, RTPROT_UNSPEC }
};
/*
* Names for bit numbers of route [next-hop] flags and lock bits.
* Note: We need the bits to generate a bitmap in constants.xml.
*/
static const ni_intmap_t ni_route_flags_bits[] = {
{ "notify", 8 /* RTM_F_NOTIFY */ },
{ "cloned", 9 /* RTM_F_CLONED */ },
{ "equalize", 10 /* RTM_F_EQUALIZE */ },
{ "prefix", 11 /* RTM_F_PREFIX */ },
{ NULL, 0 }
};
static const ni_intmap_t ni_route_nh_flags_bits[] = {
{ "dead", 0 /* RTNH_F_DEAD */},
{ "pervasive", 1 /* RTNH_F_PERVASIVE*/},
{ "online", 2 /* RTNH_F_ONLINK */},
{ NULL, 0 }
};
static const ni_intmap_t ni_route_mxlock_bits[] = {
{ "mtu", RTAX_MTU },
{ "window", RTAX_WINDOW },
{ "rtt", RTAX_RTT },
{ "rttvar", RTAX_RTTVAR },
{ "ssthresh", RTAX_SSTHRESH },
{ "cwnd", RTAX_CWND },
{ "advmss", RTAX_ADVMSS },
{ "reordering", RTAX_REORDERING },
{ "hoplimit", RTAX_HOPLIMIT },
{ "initcwnd", RTAX_INITCWND },
{ "features", RTAX_FEATURES },
{ "rto_min", RTAX_RTO_MIN },
#if defined(RTAX_INITRWND)
{ "initrwnd", RTAX_INITRWND },
#endif
{ NULL, 0 },
};
/*
* ni_route functions
*/
static inline ni_bool_t
ni_route_init(ni_route_t *route)
{
if (route) {
memset(route, 0, sizeof(*route));
return TRUE;
}
return FALSE;
}
static inline void
ni_route_destroy(ni_route_t *rp)
{
ni_route_nexthop_list_destroy(&rp->nh.next);
ni_route_nexthop_destroy(&rp->nh);
memset(rp, 0, sizeof(*rp));
}
extern ni_refcounted_define_new(ni_route);
extern ni_refcounted_define_ref(ni_route);
extern ni_refcounted_define_hold(ni_route);
extern ni_refcounted_define_free(ni_route);
extern ni_refcounted_define_drop(ni_route);
extern ni_refcounted_define_move(ni_route);
ni_route_t *
ni_route_create(unsigned int prefixlen, const ni_sockaddr_t *dest,
const ni_sockaddr_t *gw, unsigned int table,
ni_route_table_t **list)
{
static const ni_sockaddr_t null_addr;
ni_route_t *rp;
int af;
if (!dest)
dest = &null_addr;
if (!gw)
gw = &null_addr;
af = dest->ss_family;
if (gw->ss_family == AF_UNSPEC) {
/* No gateway - this is a direct subnet route.
* Just make sure the destination is not the default
* route. */
if (af == AF_UNSPEC) {
ni_error("Cannot add route - destination and gw are both 0/0");
return NULL;
}
} else {
if (af == AF_UNSPEC) {
af = gw->ss_family;
} else
if (dest->ss_family != gw->ss_family) {
ni_error("Cannot create route - destination and gateway address "
"family mismatch");
return NULL;
}
}
if (!(rp = ni_route_new()))
return NULL;
rp->family = af;
rp->prefixlen = prefixlen;
rp->destination = *dest;
if (!ni_sockaddr_is_specified(gw))
rp->nh.gateway.ss_family = af;
else
rp->nh.gateway = *gw;
if (rp->destination.ss_family == AF_UNSPEC) {
memset(&rp->destination, 0, sizeof(rp->destination));
rp->destination.ss_family = af;
}
rp->type = RTN_UNICAST;
rp->protocol = RTPROT_BOOT;
rp->scope = ni_route_guess_scope(rp);
if (ni_route_is_valid_table(table))
rp->table = table;
else
rp->table = ni_route_guess_table(rp);
if (list && !ni_route_tables_add_route(list, rp))
ni_route_drop(&rp);
return rp;
}
ni_route_t *
ni_route_clone(const ni_route_t *src)
{
ni_route_t *rp;
if (src) {
rp = ni_route_new();
if (ni_route_copy(rp, src))
return rp;
ni_route_free(rp);
}
return NULL;
}
static ni_bool_t
ni_route_copy_options(ni_route_t *rp, const ni_route_t *src)
{
if (!rp || !src)
return FALSE;
#define C(x) rp->x = src->x
C(owner);
C(family);
C(prefixlen);
C(destination);
C(pref_src);
C(priority);
C(flags);
C(realm);
C(mark);
C(tos);
C(table);
C(type);
C(scope);
C(protocol);
C(lock);
C(mtu);
C(rtt);
C(rttvar);
C(window);
C(cwnd);
C(initcwnd);
C(initrwnd);
C(ssthresh);
C(advmss);
C(rto_min);
C(hoplimit);
C(features);
C(reordering);
#undef C
return TRUE;
}
ni_bool_t
ni_route_copy(ni_route_t *rp, const ni_route_t *src)
{
if (!ni_route_copy_options(rp, src))
return FALSE;
return ni_route_replace_hops(rp, &src->nh);
}
ni_bool_t
ni_route_update_options(ni_route_t *rp, const ni_route_t *src)
{
if (!rp || !src)
return FALSE;
#define CC(x) if (src->x) rp->x = src->x
CC(owner);
/* skip family, prefixlen */
CC(priority);
CC(flags);
CC(realm);
CC(mark);
CC(tos);
/* skip table, type */
CC(scope);
CC(protocol);
CC(lock);
CC(mtu);
CC(rtt);
CC(rttvar);
CC(window);
CC(cwnd);
CC(initcwnd);
CC(initrwnd);
CC(ssthresh);
CC(advmss);
CC(rto_min);
CC(hoplimit);
CC(features);
CC(reordering);
#undef CC
return TRUE;
}
ni_bool_t
ni_route_update(ni_route_t *rp, const ni_route_t *src)
{
if (!rp || !src)
return FALSE;
if (rp->family != src->family)
return FALSE;
if (rp->table != src->table)
return FALSE;
if (rp->type != src->type)
return FALSE;
if (rp->prefixlen != src->prefixlen)
return FALSE;
if (rp->prefixlen && !ni_sockaddr_equal(&rp->destination, &src->destination))
return FALSE;
if (!ni_route_replace_hops(rp, &src->nh))
return FALSE;
if (ni_sockaddr_is_specified(&src->pref_src))
rp->pref_src = src->pref_src;
return ni_route_update_options(rp, src);
}
ni_bool_t
ni_route_replace_hops(ni_route_t *rp, const ni_route_nexthop_t *sh)
{
ni_route_nexthop_t *nh;
if (!rp)
return FALSE;
ni_route_nexthop_list_destroy(&rp->nh.next);
ni_route_nexthop_destroy(&rp->nh);
for (nh = &rp->nh; sh; sh = sh->next, nh = nh->next) {
if (!ni_route_nexthop_copy(nh, sh))
return FALSE;
if (sh->next)
nh->next = ni_route_nexthop_new();
}
return TRUE;
}
ni_route_t *
ni_route_squash_hops(const ni_route_array_t *routes, const ni_route_t *rp)
{
ni_route_nexthop_t **tail = NULL, *nh;
const ni_route_nexthop_t *sh;
ni_route_t *result = NULL;
const ni_route_t *sr;
unsigned int i;
if (!rp || !routes || !routes->count)
return NULL;
result = ni_route_new();
if (!ni_route_copy_options(result, rp)) {
ni_route_free(result);
return NULL;
}
nh = &result->nh;
tail = &nh;
for (i = 0; i < routes->count; ++i) {
sr = routes->data[i];
for (sh = &sr->nh; sh; sh = sh->next) {
if (!(nh = *tail))
*tail = nh = ni_route_nexthop_new();
if (!ni_route_nexthop_copy(nh, sh)) {
ni_route_free(result);
return NULL;
}
tail = &nh->next;
}
}
return result;
}
unsigned int
ni_route_expand_hops(ni_route_array_t *routes, const ni_route_t *rp)
{
const ni_route_nexthop_t *nh;
ni_route_t *r = NULL;
unsigned int count;
if (!rp || !routes)
return FALSE;
count = routes->count;
for (nh = &rp->nh; nh; nh = nh->next) {
r = ni_route_new();
if (ni_route_copy_options(r, rp) &&
ni_route_nexthop_copy(&r->nh, nh) &&
ni_route_array_append(routes, r))
continue;
ni_route_free(r);
while (routes->count > count) {
if (!ni_route_array_delete(routes, routes->count - 1))
break;
}
return 0;
}
return routes->count - count;
}
ni_route_t *
ni_route_drop_ifindex_hops(const ni_route_t *sr, unsigned int index)
{
const ni_route_nexthop_t *sh;
ni_route_nexthop_t *nh, **tail = NULL;
ni_route_t *rp = NULL;
if (!sr || !index)
return NULL;
for (sh = &sr->nh; sh; sh = sh->next) {
if (!sh->device.index || index == sh->device.index)
continue;
if (rp == NULL) {
rp = ni_route_new();
if (!rp)
return NULL;
nh = &rp->nh;
if (!ni_route_copy_options(rp, sr) ||
!ni_route_nexthop_copy(nh, sh)) {
ni_route_free(rp);
return NULL;
}
} else {
*tail = nh = ni_route_nexthop_new();
if (!ni_route_nexthop_copy(nh, sh)) {
ni_route_free(rp);
return NULL;
}
}
tail = &nh->next;
}
return rp;
}
void
ni_route_bind_ifname(ni_route_t *rp, ni_netconfig_t *nc, ni_netdev_t *dev)
{
ni_route_nexthop_t *nh;
/* Set device names in hops of a route discovered from system
* with an optional dev as an resolved current/cached device.
*/
for (nh = &rp->nh; nh; nh = nh->next)
ni_route_nexthop_bind_ifname(nh, nc, dev);
}
void
ni_route_bind_ifindex(ni_route_t *rp, ni_netconfig_t *nc, ni_netdev_t *dev, unsigned int ifflags)
{
ni_route_nexthop_t *nh;
/* Set device indices in hops of a configuration/lease route
* with optional dev as the default (current/lease) device.
*/
for (nh = &rp->nh; nh; nh = nh->next)
ni_route_nexthop_bind_ifindex(nh, nc, dev, ifflags);
}
ni_bool_t
ni_route_equal_destination(const ni_route_t *r1, const ni_route_t *r2)
{
if (ni_route_equal_ref(r1, r2))
return TRUE;
if (r1->family != r2->family)
return FALSE;
if (r1->prefixlen != r2->prefixlen)
return FALSE;
if (r1->prefixlen && !ni_sockaddr_equal(&r1->destination, &r2->destination))
return FALSE;
if (r1->family == AF_INET) {
/*
* ipv4 matches routing entries by [prefix, tos, priority]
*/
if (r1->tos != r2->tos || r1->priority != r2->priority)
return FALSE;
} else
if (r1->family == AF_INET6) {
/*
* ipv6 matches routing entries by [src pfx, dst pfx, priority]
* and automatically assigns priority (metrics) to them.
*
* we don't support source routes yet and filter them out, so
* all routes have a "from all" source for now.
*/
unsigned int p1 = r1->priority;
unsigned int p2 = r2->priority;
if (!p1) {
if (!ni_route_type_needs_nexthop(r1->type))
p1 = IP6_RT_PRIO_USER;
else
if (ni_route_via_gateway(r1))
p1 = IP6_RT_PRIO_USER;
else
p1 = IP6_RT_PRIO_ADDRCONF;
}
if (!p2) {
if (!ni_route_type_needs_nexthop(r2->type))
p2 = IP6_RT_PRIO_USER;
else
if (ni_route_via_gateway(r2))
p2 = IP6_RT_PRIO_USER;
else
p2 = IP6_RT_PRIO_ADDRCONF;
}
if (p1 != p2)
return FALSE;
}
return TRUE;
}
ni_bool_t
ni_route_equal_pref_source(const ni_route_t *r1, const ni_route_t *r2)
{
return ni_sockaddr_equal(&r1->pref_src, &r2->pref_src);
}
ni_bool_t
ni_route_equal_options(const ni_route_t *r1, const ni_route_t *r2)
{
#define NE(x) if (r1->x != r2->x) return FALSE;
NE(realm);
NE(mark);
NE(scope);
NE(protocol);
NE(lock);
NE(mtu);
NE(rtt);
NE(rttvar);
NE(window);
NE(cwnd);
NE(initcwnd);
NE(initrwnd);
NE(ssthresh);
NE(advmss);
NE(rto_min);
NE(hoplimit);
NE(features);
NE(reordering);
#undef NE
return TRUE;
}
ni_bool_t
ni_route_equal_gateways(const ni_route_t *r1, const ni_route_t *r2)
{
const ni_route_nexthop_t *nh1, *nh2;
if (ni_route_equal_ref(r1, r2))
return TRUE;
nh1 = &r1->nh;
nh2 = &r2->nh;
while (nh1 && nh2) {
if (!ni_route_nexthop_equal_gateway(nh1, nh2))
return FALSE;
nh1 = nh1->next;
nh2 = nh2->next;
}
return nh1 == nh2;
}
ni_bool_t
ni_route_equal_hops(const ni_route_t *r1, const ni_route_t *r2)
{
const ni_route_nexthop_t *nh1, *nh2;
if (ni_route_equal_ref(r1, r2))
return TRUE;
nh1 = &r1->nh;
nh2 = &r2->nh;
while (nh1 && nh2) {
if (!ni_route_nexthop_equal(nh1, nh2))
return FALSE;
nh1 = nh1->next;
nh2 = nh2->next;
}
return ni_route_nexthop_equal(nh1, nh2);
}
ni_bool_t
ni_route_equal_ref(const ni_route_t *r1, const ni_route_t *r2)
{
return r1 == r2;
}
ni_bool_t
ni_route_equal(const ni_route_t *r1, const ni_route_t *r2)
{
if (!r1 || !r2)
return r1 == r2;
if (!ni_route_equal_destination(r1, r2))
return FALSE;
/* corner case? when a direct route without pref-src
* exists and same prefix address gets added, kernel
* will add a route (duplicate) with a pref-src set.
*/
if (!ni_route_equal_pref_source(r1, r2))
return FALSE;
if (!ni_route_equal_options(r1, r2))
return FALSE;
if (!ni_route_equal_hops(r1, r2))
return FALSE;
return TRUE;
}
static int
do_route_cmp_show(int ret, const char *what)
{
#ifdef NI_ROUTE_TRACE_CMP_LEVEL
if (ret) {
ni_debug_verbose(NI_ROUTE_TRACE_CMP_LEVEL, NI_TRACE_IFCONFIG,
"route %s cmp ==>> %d", what, ret);
}
#endif
return ret;
}
static int
ni_route_sort_cmp(const ni_route_t *r1, const ni_route_t *r2)
{
#define do_cmp(a, b) (a > b ? 1 : a < b ? -1 : 0)
int ret;
#ifdef NI_ROUTE_TRACE_CMP_LEVEL
ni_stringbuf_t out = NI_STRINGBUF_INIT_DYNAMIC;
ni_debug_verbose(NI_ROUTE_TRACE_CMP_LEVEL, NI_TRACE_IFCONFIG,
"route cmp 1: %s", ni_route_print(&out, r1));
ni_stringbuf_destroy(&out);
ni_debug_verbose(NI_ROUTE_TRACE_CMP_LEVEL, NI_TRACE_IFCONFIG,
" and 2: %s", ni_route_print(&out, r2));
ni_stringbuf_destroy(&out);
#endif
if (!r1 || !r2)
return do_route_cmp_show(do_cmp(r1, r2), "pointer");
if ((ret = do_cmp(r1->table, r2->table)))
return do_route_cmp_show(ret, "table");
if ((ret = do_cmp(r1->family, r2->family)))
return do_route_cmp_show(ret, "family");
if ((ret = (ni_route_via_gateway(r1) ? 1 : 0) - (ni_route_via_gateway(r2) ? 1 : 0)))
return do_route_cmp_show(ret, "via gw");
if ((ret = do_cmp(r1->prefixlen, r2->prefixlen)))
return do_route_cmp_show(-ret, "prefix-len");
if ((ret = ni_sockaddr_compare(&r1->destination, &r2->destination)))
return do_route_cmp_show(ret, "destination");
if ((ret = do_cmp(r1->priority, r2->priority)))
return do_route_cmp_show(ret, "priority");
return 0;
#undef do_cmp
}
static const char *
ni_route_print_flags(ni_stringbuf_t *out, unsigned int flags,
const ni_intmap_t *map, const char *prefix, const char *sep)
{
size_t beg = out->len;
unsigned int i;
for (i = 0; map && map->name; ++map) {
if (flags & (1 << map->value)) {
ni_stringbuf_puts(out, i++ ? sep : prefix);
ni_stringbuf_puts(out, map->name);
}
}
return out->string ? out->string + beg : NULL;
}
const char *
ni_route_print(ni_stringbuf_t *out, const ni_route_t *rp)
{
ni_netconfig_t *nc = ni_global_state_handle(0);
const ni_route_nexthop_t *nh;
const char *ptr;
if (!out || !rp || rp->family == AF_UNSPEC ||
rp->destination.ss_family != rp->family)
return NULL;
if ((ptr = ni_addrfamily_type_to_name(rp->family))) {
ni_stringbuf_printf(out, "%s ", ptr);
}
ni_stringbuf_printf(out, "%s/%u",
ni_sockaddr_print(&rp->destination), rp->prefixlen);
for (nh = &rp->nh; nh; nh = nh->next) {
ni_netdev_t *dev;
if (rp->nh.next) {
ni_stringbuf_printf(out, " nexthop");
}
if (ni_sockaddr_is_specified(&nh->gateway)) {
ni_stringbuf_printf(out, " via %s",
ni_sockaddr_print(&nh->gateway));
}
if (nh->device.name) {
if (nh->device.index)
ni_stringbuf_printf(out, " dev %s#%u", nh->device.name,
nh->device.index);
else
ni_stringbuf_printf(out, " dev %s", nh->device.name);
} else
if (nh->device.index) {
dev = nc ? ni_netdev_by_index(nc, nh->device.index) : NULL;
if (!dev || !dev->name)
ni_stringbuf_printf(out, " dev #%u", nh->device.index);
else
ni_stringbuf_printf(out, " dev %s#%u", dev->name,
dev->link.ifindex);
}
if (!rp->nh.next)
continue;
if (nh->weight) {
ni_stringbuf_printf(out, " weight %u", nh->weight);
}
if (nh->realm > 0) {
ni_stringbuf_printf(out, " realm %u", nh->realm);
}
if (nh->flags > 0) {
ni_route_print_flags(out, nh->flags,
ni_route_nh_flags_bits,
" flags ", "|");
}
}
/* kern */
if (rp->type != RTN_UNSPEC) {
if ((ptr = ni_route_type_type_to_name(rp->type))) {
ni_stringbuf_printf(out, " type %s", ptr);
} else {
ni_stringbuf_printf(out, " type %u", rp->type);
}
}
if (rp->table != RT_TABLE_UNSPEC) {
char *name = NULL;
if ((ptr = ni_route_table_type_to_name(rp->table, &name)))
ni_stringbuf_printf(out, " table %s", ptr);
else
ni_stringbuf_printf(out, " table %u", rp->table);
ni_string_free(&name);
}
if ((ptr = ni_route_scope_type_to_name(rp->scope))) {
ni_stringbuf_printf(out, " scope %s", ptr);
} else {
ni_stringbuf_printf(out, " scope %u", rp->scope);
}
if (rp->protocol != RTPROT_UNSPEC) {
if ((ptr = ni_route_protocol_type_to_name(rp->protocol))) {
ni_stringbuf_printf(out, " protocol %s", ptr);
} else {
ni_stringbuf_printf(out, " protocol %u", rp->protocol);
}
}
/* other attrs */
if (rp->flags > 0) {
ni_route_print_flags(out, rp->flags,
ni_route_flags_bits, " flags ", "|");
}
if (ni_sockaddr_is_specified(&rp->pref_src)) {
ni_stringbuf_printf(out, " pref-src %s",
ni_sockaddr_print(&rp->pref_src));
}
if (rp->priority > 0) {
ni_stringbuf_printf(out, " priority %u", rp->priority);
}
if (rp->realm > 0) {
ni_stringbuf_printf(out, " realm %u", rp->realm);
}
if (rp->tos > 0) {
/* TODO: names */
ni_stringbuf_printf(out, " tos 0x%02x", rp->tos);
}
/* metrics */
if (rp->mtu > 0) {
if (rp->lock & (1<<RTAX_MTU))
ni_stringbuf_printf(out, " mtu lock %u", rp->mtu);
else
ni_stringbuf_printf(out, " mtu %u", rp->mtu);
}
if (rp->window > 0) {
if (rp->lock & (1<<RTAX_WINDOW))
ni_stringbuf_printf(out, " window lock %u", rp->window);
else
ni_stringbuf_printf(out, " window %u", rp->window);
}
if (rp->rtt > 0) {
if (rp->lock & (1<<RTAX_RTT))
ni_stringbuf_printf(out, " rtt lock %u", rp->rtt);
else
ni_stringbuf_printf(out, " rtt %u", rp->rtt);
}
if (rp->rttvar > 0) {
if (rp->lock & (1<<RTAX_RTTVAR))
ni_stringbuf_printf(out, " rttvar %u", rp->rttvar);
else
ni_stringbuf_printf(out, " rttvar %u", rp->rttvar);
}
if (rp->ssthresh > 0) {
if (rp->lock & (1<<RTAX_SSTHRESH))
ni_stringbuf_printf(out, " ssthresh lock %u", rp->ssthresh);
else
ni_stringbuf_printf(out, " ssthresh %u", rp->ssthresh);
}
if (rp->cwnd > 0) {
if (rp->lock & (1<<RTAX_CWND))
ni_stringbuf_printf(out, " cwnd lock %u", rp->cwnd);
else
ni_stringbuf_printf(out, " cwnd %u", rp->cwnd);
}
if (rp->advmss > 0) {
if (rp->lock & (1<<RTAX_ADVMSS))
ni_stringbuf_printf(out, " advmss lock %u", rp->advmss);
else
ni_stringbuf_printf(out, " advmss %u", rp->advmss);
}
if (rp->reordering > 0) {
if (rp->lock & (1<<RTAX_REORDERING))
ni_stringbuf_printf(out, " reordering lock %u", rp->reordering);
else
ni_stringbuf_printf(out, " reordering %u", rp->reordering);
}
if (rp->hoplimit > 0) {
if (rp->lock & (1<<RTAX_HOPLIMIT))
ni_stringbuf_printf(out, " hoplimit lock %u", rp->hoplimit);
else
ni_stringbuf_printf(out, " hoplimit %u", rp->hoplimit);
}
if (rp->initcwnd > 0) {
if (rp->lock & (1<<RTAX_INITCWND))
ni_stringbuf_printf(out, " initcwnd lock %u", rp->initcwnd);
else
ni_stringbuf_printf(out, " initcwnd %u", rp->initcwnd);
}
if (rp->features > 0) {
if (rp->lock & (1<<RTAX_FEATURES))
ni_stringbuf_printf(out, " features lock %u", rp->features);
else
ni_stringbuf_printf(out, " features %u", rp->features);
}
if (rp->rto_min > 0) {
if (rp->lock & (1<<RTAX_RTO_MIN))
ni_stringbuf_printf(out, " rto_min lock %u", rp->rto_min);
else
ni_stringbuf_printf(out, " rto_min %u", rp->rto_min);
}
if (rp->initrwnd > 0) {
#if defined(RTAX_INITRWND)
if (rp->lock & (1<<RTAX_INITRWND))
ni_stringbuf_printf(out, " initrwnd lock %u", rp->initrwnd);
else
#endif
ni_stringbuf_printf(out, " initrwnd %u", rp->initrwnd);
}
return out->string;
}
const char *
ni_route_type_type_to_name(unsigned int type)
{
return ni_format_uint_maybe_mapped(type, ni_route_type_names);
}
const char *
ni_route_table_type_to_name(unsigned int type, char **name)
{
const char *res = NULL;
if (!name)
return NULL;
if ((res = ni_format_uint_mapped(type, ni_route_table_names))) {
ni_string_dup(name, res);
return *name;
}
if (ni_intmap_file_get_name(IPROUTE2_RT_TABLES_FILE, &type, name))
return *name;
/* Last resort. Convert type to string and return as name */
return ni_string_printf(name, "%u", type);
}
const char *
ni_route_scope_type_to_name(unsigned int type)
{
return ni_format_uint_maybe_mapped(type, ni_route_scope_names);
}
const char *
ni_route_protocol_type_to_name(unsigned int type)
{
return ni_format_uint_maybe_mapped(type, ni_route_protocol_names);
}
const char *
ni_route_flag_bit_to_name(unsigned int bit)
{
return ni_format_uint_mapped(bit, ni_route_flags_bits);
}
const char *
ni_route_nh_flag_bit_to_name(unsigned int bit)
{
return ni_format_uint_mapped(bit, ni_route_nh_flags_bits);
}
const char *
ni_route_metrics_lock_bit_to_name(unsigned int bit)
{
return ni_format_uint_mapped(bit, ni_route_mxlock_bits);
}
ni_bool_t
ni_route_type_name_to_type(const char *name, unsigned int *type)
{
unsigned int value;
if (!type || !name)
return FALSE;