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Merge pull request #14183 from donaldsharp/zebra_routemap_cleanup

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Zebra routemap cleanup
This commit is contained in:
Donatas Abraitis 2023-08-13 19:57:30 +03:00 committed by GitHub
commit c6fbffd2a1
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GPG Key ID: 4AEE18F83AFDEB23
4 changed files with 87 additions and 107 deletions
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7
zebra/redistribute.c
View File

@ -647,10 +647,9 @@ int zebra_add_import_table_entry(struct zebra_vrf *zvrf, struct route_node *rn,
afi = family2afi(rn->p.family);
if (rmap_name)
ret = zebra_import_table_route_map_check(
afi, re->type, re->instance, &rn->p,
re->nhe->nhg.nexthop,
zvrf->vrf->vrf_id, re->tag, rmap_name);
ret = zebra_import_table_route_map_check(afi, re, &rn->p,
re->nhe->nhg.nexthop,
rmap_name);
if (ret != RMAP_PERMITMATCH) {
UNSET_FLAG(re->flags, ZEBRA_FLAG_SELECTED);

3
zebra/zebra_nhg.c
View File

@ -2703,8 +2703,7 @@ skip_check:
}
/* It'll get set if required inside */
ret = zebra_route_map_check(family, re->type, re->instance, p, nexthop,
zvrf, re->tag);
ret = zebra_route_map_check(family, re, p, nexthop, zvrf);
if (ret == RMAP_DENYMATCH) {
if (IS_ZEBRA_DEBUG_RIB) {
zlog_debug(

158
zebra/zebra_routemap.c
View File

@ -31,13 +31,9 @@ static uint32_t zebra_rmap_update_timer = ZEBRA_RMAP_DEFAULT_UPDATE_TIMER;
static struct event *zebra_t_rmap_update = NULL;
char *zebra_import_table_routemap[AFI_MAX][ZEBRA_KERNEL_TABLE_MAX];
struct nh_rmap_obj {
struct zebra_rmap_obj {
struct nexthop *nexthop;
vrf_id_t vrf_id;
uint32_t source_protocol;
uint8_t instance;
int metric;
route_tag_t tag;
struct route_entry *re;
};
static void zebra_route_map_set_delay_timer(uint32_t value);
@ -49,12 +45,12 @@ static enum route_map_cmd_result_t
route_match_tag(void *rule, const struct prefix *prefix, void *object)
{
route_tag_t *tag;
struct nh_rmap_obj *nh_data;
struct zebra_rmap_obj *rm_data;
tag = rule;
nh_data = object;
rm_data = object;
if (nh_data->tag == *tag)
if (rm_data->re->tag == *tag)
return RMAP_MATCH;
return RMAP_NOMATCH;
@ -74,19 +70,19 @@ static const struct route_map_rule_cmd route_match_tag_cmd = {
static enum route_map_cmd_result_t
route_match_interface(void *rule, const struct prefix *prefix, void *object)
{
struct nh_rmap_obj *nh_data;
struct zebra_rmap_obj *rm_data;
char *ifname = rule;
ifindex_t ifindex;
if (strcasecmp(ifname, "any") == 0)
return RMAP_MATCH;
nh_data = object;
if (!nh_data || !nh_data->nexthop)
rm_data = object;
if (!rm_data || !rm_data->nexthop)
return RMAP_NOMATCH;
ifindex = ifname2ifindex(ifname, nh_data->vrf_id);
ifindex = ifname2ifindex(ifname, rm_data->nexthop->vrf_id);
if (ifindex == 0)
return RMAP_NOMATCH;
if (nh_data->nexthop->ifindex == ifindex)
if (rm_data->nexthop->ifindex == ifindex)
return RMAP_MATCH;
return RMAP_NOMATCH;
@ -1017,21 +1013,21 @@ static enum route_map_cmd_result_t
route_match_ip_next_hop(void *rule, const struct prefix *prefix, void *object)
{
struct access_list *alist;
struct nh_rmap_obj *nh_data;
struct zebra_rmap_obj *rm_data;
struct prefix_ipv4 p;
nh_data = object;
if (!nh_data)
rm_data = object;
if (!rm_data)
return RMAP_NOMATCH;
switch (nh_data->nexthop->type) {
switch (rm_data->nexthop->type) {
case NEXTHOP_TYPE_IFINDEX:
/* Interface routes can't match ip next-hop */
return RMAP_NOMATCH;
case NEXTHOP_TYPE_IPV4_IFINDEX:
case NEXTHOP_TYPE_IPV4:
p.family = AF_INET;
p.prefix = nh_data->nexthop->gate.ipv4;
p.prefix = rm_data->nexthop->gate.ipv4;
p.prefixlen = IPV4_MAX_BITLEN;
break;
case NEXTHOP_TYPE_IPV6:
@ -1080,21 +1076,21 @@ route_match_ip_next_hop_prefix_list(void *rule, const struct prefix *prefix,
void *object)
{
struct prefix_list *plist;
struct nh_rmap_obj *nh_data;
struct zebra_rmap_obj *rm_data;
struct prefix_ipv4 p;
nh_data = (struct nh_rmap_obj *)object;
if (!nh_data)
rm_data = (struct zebra_rmap_obj *)object;
if (!rm_data)
return RMAP_NOMATCH;
switch (nh_data->nexthop->type) {
switch (rm_data->nexthop->type) {
case NEXTHOP_TYPE_IFINDEX:
/* Interface routes can't match ip next-hop */
return RMAP_NOMATCH;
case NEXTHOP_TYPE_IPV4_IFINDEX:
case NEXTHOP_TYPE_IPV4:
p.family = AF_INET;
p.prefix = nh_data->nexthop->gate.ipv4;
p.prefix = rm_data->nexthop->gate.ipv4;
p.prefixlen = IPV4_MAX_BITLEN;
break;
case NEXTHOP_TYPE_IPV6:
@ -1264,14 +1260,14 @@ static enum route_map_cmd_result_t
route_match_ipv6_next_hop_type(void *rule, const struct prefix *prefix,
void *object)
{
struct nh_rmap_obj *nh_data;
struct zebra_rmap_obj *rm_data;
if (prefix->family == AF_INET6) {
nh_data = (struct nh_rmap_obj *)object;
if (!nh_data)
rm_data = (struct zebra_rmap_obj *)object;
if (!rm_data)
return RMAP_NOMATCH;
if (nh_data->nexthop->type == NEXTHOP_TYPE_BLACKHOLE)
if (rm_data->nexthop->type == NEXTHOP_TYPE_BLACKHOLE)
return RMAP_MATCH;
}
@ -1356,21 +1352,21 @@ route_match_ip_nexthop_prefix_len(void *rule, const struct prefix *prefix,
void *object)
{
uint32_t *prefixlen = (uint32_t *)rule;
struct nh_rmap_obj *nh_data;
struct zebra_rmap_obj *rm_data;
struct prefix_ipv4 p;
nh_data = (struct nh_rmap_obj *)object;
if (!nh_data || !nh_data->nexthop)
rm_data = (struct zebra_rmap_obj *)object;
if (!rm_data || !rm_data->nexthop)
return RMAP_NOMATCH;
switch (nh_data->nexthop->type) {
switch (rm_data->nexthop->type) {
case NEXTHOP_TYPE_IFINDEX:
/* Interface routes can't match ip next-hop */
return RMAP_NOMATCH;
case NEXTHOP_TYPE_IPV4_IFINDEX:
case NEXTHOP_TYPE_IPV4:
p.family = AF_INET;
p.prefix = nh_data->nexthop->gate.ipv4;
p.prefix = rm_data->nexthop->gate.ipv4;
p.prefixlen = IPV4_MAX_BITLEN;
break;
case NEXTHOP_TYPE_IPV6:
@ -1395,14 +1391,14 @@ static enum route_map_cmd_result_t
route_match_ip_next_hop_type(void *rule, const struct prefix *prefix,
void *object)
{
struct nh_rmap_obj *nh_data;
struct zebra_rmap_obj *rm_data;
if (prefix->family == AF_INET) {
nh_data = (struct nh_rmap_obj *)object;
if (!nh_data)
rm_data = (struct zebra_rmap_obj *)object;
if (!rm_data)
return RMAP_NOMATCH;
if (nh_data->nexthop->type == NEXTHOP_TYPE_BLACKHOLE)
if (rm_data->nexthop->type == NEXTHOP_TYPE_BLACKHOLE)
return RMAP_MATCH;
}
@ -1432,15 +1428,14 @@ static const struct route_map_rule_cmd
static enum route_map_cmd_result_t
route_match_source_protocol(void *rule, const struct prefix *p, void *object)
{
uint32_t *rib_type = (uint32_t *)rule;
struct nh_rmap_obj *nh_data;
int32_t *rib_type = (int32_t *)rule;
struct zebra_rmap_obj *rm_data;
nh_data = (struct nh_rmap_obj *)object;
if (!nh_data)
rm_data = (struct zebra_rmap_obj *)object;
if (!rm_data)
return RMAP_NOMATCH;
return ((nh_data->source_protocol == *rib_type) ? RMAP_MATCH
: RMAP_NOMATCH);
return ((rm_data->re->type == *rib_type) ? RMAP_MATCH : RMAP_NOMATCH);
}
static void *route_match_source_protocol_compile(const char *arg)
@ -1473,13 +1468,13 @@ static enum route_map_cmd_result_t
route_match_source_instance(void *rule, const struct prefix *p, void *object)
{
uint8_t *instance = (uint8_t *)rule;
struct nh_rmap_obj *nh_data;
struct zebra_rmap_obj *rm_data;
nh_data = (struct nh_rmap_obj *)object;
if (!nh_data)
rm_data = (struct zebra_rmap_obj *)object;
if (!rm_data)
return RMAP_NOMATCH;
return (nh_data->instance == *instance) ? RMAP_MATCH : RMAP_NOMATCH;
return (rm_data->re->instance == *instance) ? RMAP_MATCH : RMAP_NOMATCH;
}
static void *route_match_source_instance_compile(const char *arg)
@ -1513,10 +1508,10 @@ static const struct route_map_rule_cmd route_match_source_instance_cmd = {
static enum route_map_cmd_result_t
route_set_src(void *rule, const struct prefix *prefix, void *object)
{
struct nh_rmap_obj *nh_data;
struct zebra_rmap_obj *rm_data;
nh_data = (struct nh_rmap_obj *)object;
nh_data->nexthop->rmap_src = *(union g_addr *)rule;
rm_data = (struct zebra_rmap_obj *)object;
rm_data->nexthop->rmap_src = *(union g_addr *)rule;
return RMAP_OKAY;
}
@ -1761,26 +1756,22 @@ void zebra_routemap_finish(void)
route_map_finish();
}
route_map_result_t
zebra_route_map_check(afi_t family, int rib_type, uint8_t instance,
const struct prefix *p, struct nexthop *nexthop,
struct zebra_vrf *zvrf, route_tag_t tag)
route_map_result_t zebra_route_map_check(afi_t family, struct route_entry *re,
const struct prefix *p,
struct nexthop *nexthop,
struct zebra_vrf *zvrf)
{
struct route_map *rmap = NULL;
char *rm_name;
route_map_result_t ret = RMAP_PERMITMATCH;
struct nh_rmap_obj nh_obj;
struct zebra_rmap_obj rm_obj;
nh_obj.nexthop = nexthop;
nh_obj.vrf_id = nexthop->vrf_id;
nh_obj.source_protocol = rib_type;
nh_obj.instance = instance;
nh_obj.metric = 0;
nh_obj.tag = tag;
rm_obj.nexthop = nexthop;
rm_obj.re = re;
if (rib_type >= 0 && rib_type < ZEBRA_ROUTE_MAX) {
rm_name = PROTO_RM_NAME(zvrf, family, rib_type);
rmap = PROTO_RM_MAP(zvrf, family, rib_type);
if (re->type >= 0 && re->type < ZEBRA_ROUTE_MAX) {
rm_name = PROTO_RM_NAME(zvrf, family, re->type);
rmap = PROTO_RM_MAP(zvrf, family, re->type);
if (rm_name && !rmap)
return RMAP_DENYMATCH;
@ -1793,7 +1784,7 @@ zebra_route_map_check(afi_t family, int rib_type, uint8_t instance,
return RMAP_DENYMATCH;
}
if (rmap) {
ret = route_map_apply(rmap, p, &nh_obj);
ret = route_map_apply(rmap, p, &rm_obj);
}
return (ret);
@ -1816,28 +1807,23 @@ void zebra_del_import_table_route_map(afi_t afi, uint32_t table)
XFREE(MTYPE_ROUTE_MAP_NAME, zebra_import_table_routemap[afi][table]);
}
route_map_result_t
zebra_import_table_route_map_check(int family, int re_type, uint8_t instance,
const struct prefix *p,
struct nexthop *nexthop,
vrf_id_t vrf_id, route_tag_t tag,
const char *rmap_name)
route_map_result_t zebra_import_table_route_map_check(int family,
struct route_entry *re,
const struct prefix *p,
struct nexthop *nexthop,
const char *rmap_name)
{
struct route_map *rmap = NULL;
route_map_result_t ret = RMAP_DENYMATCH;
struct nh_rmap_obj nh_obj;
struct zebra_rmap_obj rm_obj;
nh_obj.nexthop = nexthop;
nh_obj.vrf_id = vrf_id;
nh_obj.source_protocol = re_type;
nh_obj.instance = instance;
nh_obj.metric = 0;
nh_obj.tag = tag;
rm_obj.nexthop = nexthop;
rm_obj.re = re;
if (re_type >= 0 && re_type < ZEBRA_ROUTE_MAX)
if (re->type >= 0 && re->type < ZEBRA_ROUTE_MAX)
rmap = route_map_lookup_by_name(rmap_name);
if (rmap) {
ret = route_map_apply(rmap, p, &nh_obj);
ret = route_map_apply(rmap, p, &rm_obj);
}
return (ret);
@ -1851,21 +1837,17 @@ route_map_result_t zebra_nht_route_map_check(afi_t afi, int client_proto,
{
struct route_map *rmap = NULL;
route_map_result_t ret = RMAP_PERMITMATCH;
struct nh_rmap_obj nh_obj;
struct zebra_rmap_obj rm_obj;
nh_obj.nexthop = nexthop;
nh_obj.vrf_id = nexthop->vrf_id;
nh_obj.source_protocol = re->type;
nh_obj.instance = re->instance;
nh_obj.metric = re->metric;
nh_obj.tag = re->tag;
rm_obj.nexthop = nexthop;
rm_obj.re = re;
if (client_proto >= 0 && client_proto < ZEBRA_ROUTE_MAX)
rmap = NHT_RM_MAP(zvrf, afi, client_proto);
if (!rmap && NHT_RM_MAP(zvrf, afi, ZEBRA_ROUTE_MAX))
rmap = NHT_RM_MAP(zvrf, afi, ZEBRA_ROUTE_MAX);
if (rmap)
ret = route_map_apply(rmap, p, &nh_obj);
ret = route_map_apply(rmap, p, &rm_obj);
return ret;
}

26
zebra/zebra_routemap.h
View File

@ -21,19 +21,19 @@ extern void zebra_add_import_table_route_map(afi_t afi, const char *rmap_name,
uint32_t table);
extern void zebra_del_import_table_route_map(afi_t afi, uint32_t table);
extern route_map_result_t
zebra_import_table_route_map_check(int family, int rib_type, uint8_t instance,
const struct prefix *p,
struct nexthop *nexthop, vrf_id_t vrf_id,
route_tag_t tag, const char *rmap_name);
extern route_map_result_t
zebra_route_map_check(afi_t family, int rib_type, uint8_t instance,
const struct prefix *p, struct nexthop *nexthop,
struct zebra_vrf *zvrf, route_tag_t tag);
extern route_map_result_t
zebra_nht_route_map_check(afi_t afi, int client_proto, const struct prefix *p,
struct zebra_vrf *zvrf, struct route_entry *,
struct nexthop *nexthop);
extern route_map_result_t zebra_import_table_route_map_check(
int family, struct route_entry *re, const struct prefix *p,
struct nexthop *nexthop, const char *rmap_name);
extern route_map_result_t zebra_route_map_check(afi_t family,
struct route_entry *re,
const struct prefix *p,
struct nexthop *nexthop,
struct zebra_vrf *zvrf);
extern route_map_result_t zebra_nht_route_map_check(afi_t afi, int client_proto,
const struct prefix *p,
struct zebra_vrf *zvrf,
struct route_entry *re,
struct nexthop *nexthop);
extern void zebra_routemap_vrf_delete(struct zebra_vrf *zvrf);