Merge pull request #17297 from mjstapp/mjs_ifp_table

zebra, lib: use internal rbtree for per-NS tree of ifps
This commit is contained in:
Donald Sharp 2024-11-12 15:12:07 -05:00 committed by GitHub
commit ac6314d380
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11 changed files with 586 additions and 475 deletions

View file

@ -12,6 +12,7 @@
#ifndef _ZEBRA_ISIS_ROUTE_H
#define _ZEBRA_ISIS_ROUTE_H
#include "lib/table.h"
#include "lib/nexthop.h"
struct isis_nexthop {

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@ -1002,12 +1002,6 @@ void if_terminate(struct vrf *vrf)
while (!RB_EMPTY(if_name_head, &vrf->ifaces_by_name)) {
ifp = RB_ROOT(if_name_head, &vrf->ifaces_by_name);
if (ifp->node) {
ifp->node->info = NULL;
route_unlock_node(ifp->node);
ifp->node = NULL;
}
if_delete(&ifp);
}
}

View file

@ -295,8 +295,6 @@ struct interface {
struct if_data stats;
#endif /* HAVE_NET_RT_IFLIST */
struct route_node *node;
struct vrf *vrf;
/*

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@ -1568,6 +1568,15 @@ static int netlink_request_tunneldump(struct zebra_ns *zns, int family,
return netlink_request(&zns->netlink_cmd, &req);
}
/* Prototype for tunneldump walker */
static int tunneldump_walk_cb(struct interface *ifp, void *arg);
struct tunneldump_ctx {
struct zebra_ns *zns;
struct zebra_dplane_info *dp_info;
int ret;
};
/*
* Currently we only ask for vxlan l3svd vni information.
* In the future this can be expanded.
@ -1575,39 +1584,48 @@ static int netlink_request_tunneldump(struct zebra_ns *zns, int family,
int netlink_tunneldump_read(struct zebra_ns *zns)
{
int ret = 0;
struct tunneldump_ctx ctx = {};
struct zebra_dplane_info dp_info;
struct route_node *rn;
struct interface *tmp_if = NULL;
struct zebra_if *zif;
struct nlsock *netlink_cmd = &zns->netlink_cmd;
zebra_dplane_info_from_zns(&dp_info, zns, true /*is_cmd*/);
for (rn = route_top(zns->if_table); rn; rn = route_next(rn)) {
tmp_if = (struct interface *)rn->info;
if (!tmp_if)
continue;
zif = tmp_if->info;
if (!zif || zif->zif_type != ZEBRA_IF_VXLAN)
continue;
/* Set up context and call iterator */
ctx.zns = zns;
ctx.dp_info = &dp_info;
ret = netlink_request_tunneldump(zns, PF_BRIDGE,
tmp_if->ifindex);
if (ret < 0) {
route_unlock_node(rn);
return ret;
}
zebra_ns_ifp_walk(zns, tunneldump_walk_cb, &ctx);
ret = netlink_parse_info(netlink_link_change, netlink_cmd,
&dp_info, 0, true);
ret = ctx.ret;
if (ret < 0) {
route_unlock_node(rn);
return ret;
}
return ret;
}
static int tunneldump_walk_cb(struct interface *ifp, void *arg)
{
int ret;
struct tunneldump_ctx *ctx = arg;
struct zebra_if *zif;
zif = ifp->info;
if (!zif || zif->zif_type != ZEBRA_IF_VXLAN)
goto done;
ret = netlink_request_tunneldump(ctx->zns, PF_BRIDGE, ifp->ifindex);
if (ret < 0) {
ctx->ret = ret;
return NS_WALK_STOP;
}
return 0;
ret = netlink_parse_info(netlink_link_change, &(ctx->zns->netlink_cmd),
ctx->dp_info, 0, true);
if (ret < 0) {
ctx->ret = ret;
return NS_WALK_STOP;
}
done:
return NS_WALK_CONTINUE;
}
static uint8_t netlink_get_dplane_vlan_state(uint8_t state)

View file

@ -43,7 +43,7 @@ DEFINE_MTYPE_STATIC(ZEBRA, ZINFO, "Zebra Interface Information");
DEFINE_HOOK(zebra_if_extra_info, (struct vty * vty, struct interface *ifp),
(vty, ifp));
DEFINE_MTYPE(ZEBRA, ZIF_DESC, "Intf desc");
DEFINE_MTYPE_STATIC(ZEBRA, ZIF_DESC, "Intf desc");
static void if_down_del_nbr_connected(struct interface *ifp);
@ -215,6 +215,8 @@ static int if_zebra_delete_hook(struct interface *ifp)
if_nhg_dependents_release(ifp);
nhg_connected_tree_free(&zebra_if->nhg_dependents);
zebra_ns_unlink_ifp(ifp);
XFREE(MTYPE_ZIF_DESC, zebra_if->desc);
EVENT_OFF(zebra_if->speed_update);
@ -225,62 +227,14 @@ static int if_zebra_delete_hook(struct interface *ifp)
return 0;
}
/* Build the table key */
static void if_build_key(uint32_t ifindex, struct prefix *p)
{
p->family = AF_INET;
p->prefixlen = IPV4_MAX_BITLEN;
p->u.prefix4.s_addr = ifindex;
}
/* Link an interface in a per NS interface tree */
struct interface *if_link_per_ns(struct zebra_ns *ns, struct interface *ifp)
{
struct prefix p;
struct route_node *rn;
if (ifp->ifindex == IFINDEX_INTERNAL)
return NULL;
if_build_key(ifp->ifindex, &p);
rn = route_node_get(ns->if_table, &p);
if (rn->info) {
ifp = (struct interface *)rn->info;
route_unlock_node(rn); /* get */
return ifp;
}
rn->info = ifp;
ifp->node = rn;
return ifp;
}
/* Delete a VRF. This is called in vrf_terminate(). */
void if_unlink_per_ns(struct interface *ifp)
{
if (!ifp->node)
return;
ifp->node->info = NULL;
route_unlock_node(ifp->node);
ifp->node = NULL;
}
/* Look up an interface by identifier within a NS */
struct interface *if_lookup_by_index_per_ns(struct zebra_ns *ns,
uint32_t ifindex)
{
struct prefix p;
struct route_node *rn;
struct interface *ifp = NULL;
if_build_key(ifindex, &p);
rn = route_node_lookup(ns->if_table, &p);
if (rn) {
ifp = (struct interface *)rn->info;
route_unlock_node(rn); /* lookup */
}
ifp = zebra_ns_lookup_ifp(ns, ifindex);
return ifp;
}
@ -288,18 +242,11 @@ struct interface *if_lookup_by_index_per_ns(struct zebra_ns *ns,
struct interface *if_lookup_by_name_per_ns(struct zebra_ns *ns,
const char *ifname)
{
struct route_node *rn;
struct interface *ifp;
for (rn = route_top(ns->if_table); rn; rn = route_next(rn)) {
ifp = (struct interface *)rn->info;
if (ifp && strcmp(ifp->name, ifname) == 0) {
route_unlock_node(rn);
return (ifp);
}
}
ifp = zebra_ns_lookup_ifp_name(ns, ifname);
return NULL;
return ifp;
}
struct interface *if_lookup_by_index_per_nsid(ns_id_t ns_id, uint32_t ifindex)
@ -571,7 +518,8 @@ void if_add_update(struct interface *ifp)
zns = zvrf->zns;
else
zns = zebra_ns_lookup(NS_DEFAULT);
if_link_per_ns(zns, ifp);
zebra_ns_link_ifp(zns, ifp);
if_data = ifp->info;
assert(if_data);
@ -776,7 +724,7 @@ void if_delete_update(struct interface **pifp)
/* Send out notification on interface delete. */
zebra_interface_delete_update(ifp);
if_unlink_per_ns(ifp);
zebra_ns_unlink_ifp(ifp);
/* Update ifindex after distributing the delete message. This is in
case any client needs to have the old value of ifindex available
@ -784,7 +732,6 @@ void if_delete_update(struct interface **pifp)
for setting ifindex to IFINDEX_INTERNAL after processing the
interface deletion message. */
if_set_index(ifp, IFINDEX_INTERNAL);
ifp->node = NULL;
UNSET_FLAG(ifp->status, ZEBRA_INTERFACE_VRF_LOOPBACK);
@ -1081,51 +1028,53 @@ void zebra_if_update_link(struct interface *ifp, ifindex_t link_ifindex,
link_ifindex);
}
/*
* Callback for per-ns link fixup iteration
*/
static int zif_link_fixup_cb(struct interface *ifp, void *arg)
{
struct zebra_if *zif;
zif = ifp->info;
/* update bond-member to bond linkages */
if ((IS_ZEBRA_IF_BOND_SLAVE(ifp)) &&
(zif->bondslave_info.bond_ifindex != IFINDEX_INTERNAL) &&
!zif->bondslave_info.bond_if) {
if (IS_ZEBRA_DEBUG_EVPN_MH_ES || IS_ZEBRA_DEBUG_KERNEL)
zlog_debug("bond mbr %s map to bond %d", zif->ifp->name,
zif->bondslave_info.bond_ifindex);
zebra_l2_map_slave_to_bond(zif, ifp->vrf->vrf_id);
}
/* update SVI linkages */
if ((zif->link_ifindex != IFINDEX_INTERNAL) && !zif->link) {
zif->link = if_lookup_by_index_per_nsid(zif->link_nsid,
zif->link_ifindex);
if (IS_ZEBRA_DEBUG_KERNEL)
zlog_debug("interface %s/%d's lower fixup to %s/%d",
ifp->name, ifp->ifindex,
zif->link ? zif->link->name : "unk",
zif->link_ifindex);
}
/* Update VLAN<=>SVI map */
if (IS_ZEBRA_IF_VLAN(ifp))
zebra_evpn_acc_bd_svi_set(zif, NULL,
!!if_is_operative(ifp));
return NS_WALK_CONTINUE;
}
/*
* during initial link dump kernel does not order lower devices before
* upper devices so we need to fixup link dependencies at the end of dump
*/
void zebra_if_update_all_links(struct zebra_ns *zns)
{
struct route_node *rn;
struct interface *ifp;
struct zebra_if *zif;
if (IS_ZEBRA_DEBUG_KERNEL)
zlog_info("fixup link dependencies");
zlog_debug("fixup link dependencies");
for (rn = route_top(zns->if_table); rn; rn = route_next(rn)) {
ifp = (struct interface *)rn->info;
if (!ifp)
continue;
zif = ifp->info;
/* update bond-member to bond linkages */
if ((IS_ZEBRA_IF_BOND_SLAVE(ifp))
&& (zif->bondslave_info.bond_ifindex != IFINDEX_INTERNAL)
&& !zif->bondslave_info.bond_if) {
if (IS_ZEBRA_DEBUG_EVPN_MH_ES || IS_ZEBRA_DEBUG_KERNEL)
zlog_debug("bond mbr %s map to bond %d",
zif->ifp->name,
zif->bondslave_info.bond_ifindex);
zebra_l2_map_slave_to_bond(zif, ifp->vrf->vrf_id);
}
/* update SVI linkages */
if ((zif->link_ifindex != IFINDEX_INTERNAL) && !zif->link) {
zif->link = if_lookup_by_index_per_nsid(
zif->link_nsid, zif->link_ifindex);
if (IS_ZEBRA_DEBUG_KERNEL)
zlog_debug("interface %s/%d's lower fixup to %s/%d",
ifp->name, ifp->ifindex,
zif->link?zif->link->name:"unk",
zif->link_ifindex);
}
/* Update VLAN<=>SVI map */
if (IS_ZEBRA_IF_VLAN(ifp))
zebra_evpn_acc_bd_svi_set(zif, NULL,
!!if_is_operative(ifp));
}
zebra_ns_ifp_walk(zns, zif_link_fixup_cb, NULL);
}
static bool if_ignore_set_protodown(const struct interface *ifp, bool new_down,

View file

@ -94,9 +94,6 @@ enum zebra_if_flags {
#define ZEBRA_IF_IS_PROTODOWN_ONLY_EXTERNAL(zif) \
((zif)->protodown_rc == ZEBRA_PROTODOWN_EXTERNAL)
/* Mem type for zif desc */
DECLARE_MTYPE(ZIF_DESC);
/* `zebra' daemon local interface structure. */
struct zebra_if {
/* back pointer to the interface */
@ -215,6 +212,9 @@ struct zebra_if {
char neigh_mac[6];
struct in6_addr v6_2_v4_ll_addr6;
/* Linkage for per-vrf/per-NS ifp container */
struct ifp_tree_link *ns_tree_link;
/* The description of the interface */
char *desc;
};
@ -262,12 +262,10 @@ extern void zebra_if_init(void);
extern struct interface *if_lookup_by_index_per_ns(struct zebra_ns *, uint32_t);
extern struct interface *if_lookup_by_name_per_ns(struct zebra_ns *,
const char *);
extern struct interface *if_link_per_ns(struct zebra_ns *, struct interface *);
extern struct interface *if_lookup_by_index_per_nsid(ns_id_t nsid,
uint32_t ifindex);
extern const char *ifindex2ifname_per_ns(struct zebra_ns *, unsigned int);
extern void if_unlink_per_ns(struct interface *);
extern void if_nbr_mac_to_ipv4ll_neigh_update(struct interface *fip,
char mac[6],
struct in6_addr *address,

View file

@ -610,70 +610,47 @@ void zebra_evpn_svi_macip_del_for_evpn_hash(struct hash_bucket *bucket,
return;
}
static int zebra_evpn_map_vlan_ns(struct ns *ns,
void *_in_param,
void **_p_zevpn)
/* Callback for per-NS ifp walk */
static int zebra_evpn_map_vlan_ns(struct interface *tmp_if, void *_in_param)
{
int found = 0;
struct zebra_ns *zns = ns->info;
struct route_node *rn;
bool found = false;
struct interface *br_if;
struct zebra_evpn **p_zevpn = (struct zebra_evpn **)_p_zevpn;
struct zebra_evpn *zevpn;
struct interface *tmp_if = NULL;
struct zebra_if *zif;
struct zebra_from_svi_param *in_param =
(struct zebra_from_svi_param *)_in_param;
vlanid_t vid;
struct zebra_from_svi_param *in_param = _in_param;
vni_t vni_id = 0;
uint8_t bridge_vlan_aware;
assert(p_zevpn && in_param);
assert(in_param);
br_if = in_param->br_if;
assert(br_if);
zif = in_param->zif;
assert(zif);
vid = in_param->vid;
bridge_vlan_aware = in_param->bridge_vlan_aware;
if (bridge_vlan_aware) {
vni_id = zebra_l2_bridge_if_vni_find(zif, vid);
if (vni_id)
found = 1;
} else {
/*
* See if this interface (or interface plus VLAN Id) maps to a
* VxLAN
*/
/* TODO: Optimize with a hash. */
for (rn = route_top(zns->if_table); rn; rn = route_next(rn)) {
tmp_if = (struct interface *)rn->info;
if (!tmp_if)
continue;
zif = tmp_if->info;
if (!zif || zif->zif_type != ZEBRA_IF_VXLAN)
continue;
if (!if_is_operative(tmp_if))
continue;
/*
* See if this interface (or interface plus VLAN Id) maps to a
* VxLAN
*/
/* TODO: Optimize with a hash. */
zif = tmp_if->info;
if (!zif || zif->zif_type != ZEBRA_IF_VXLAN)
goto done;
if (!if_is_operative(tmp_if))
goto done;
if (zif->brslave_info.br_if != br_if)
continue;
if (zif->brslave_info.br_if != br_if)
goto done;
vni_id = zebra_vxlan_if_access_vlan_vni_find(zif, br_if);
if (vni_id) {
found = 1;
route_unlock_node(rn);
break;
}
}
}
vni_id = zebra_vxlan_if_access_vlan_vni_find(zif, br_if);
if (vni_id)
found = true;
done:
if (!found)
return NS_WALK_CONTINUE;
zevpn = zebra_evpn_lookup(vni_id);
*p_zevpn = zevpn;
in_param->zevpn = zevpn;
return NS_WALK_STOP;
}
@ -685,42 +662,39 @@ struct zebra_evpn *zebra_evpn_map_vlan(struct interface *ifp,
struct interface *br_if, vlanid_t vid)
{
struct zebra_if *zif;
struct zebra_evpn **p_zevpn;
struct zebra_evpn *zevpn = NULL;
struct zebra_from_svi_param in_param;
struct zebra_from_svi_param in_param = {};
vni_t vni_id = 0;
/* Determine if bridge is VLAN-aware or not */
zif = br_if->info;
assert(zif);
in_param.bridge_vlan_aware = IS_ZEBRA_IF_BRIDGE_VLAN_AWARE(zif);
/* Special case for vlan */
if (IS_ZEBRA_IF_BRIDGE_VLAN_AWARE(zif)) {
vni_id = zebra_l2_bridge_if_vni_find(zif, vid);
if (vni_id)
return zebra_evpn_lookup(vni_id);
}
in_param.vid = vid;
in_param.br_if = br_if;
in_param.zif = zif;
p_zevpn = &zevpn;
ns_walk_func(zebra_evpn_map_vlan_ns, (void *)&in_param, (void **)p_zevpn);
return zevpn;
zebra_ns_ifp_walk_all(zebra_evpn_map_vlan_ns, &in_param);
return in_param.zevpn;
}
static int zebra_evpn_from_svi_ns(struct ns *ns,
void *_in_param,
void **_p_zevpn)
/* Callback for from_svi ifp walker */
static int zebra_evpn_from_svi_ns(struct interface *tmp_if, void *_in_param)
{
struct zebra_ns *zns = ns->info;
struct route_node *rn;
struct interface *br_if;
struct zebra_evpn **p_zevpn = (struct zebra_evpn **)_p_zevpn;
struct zebra_evpn *zevpn;
struct interface *tmp_if = NULL;
struct zebra_if *zif;
struct zebra_if *br_zif;
struct zebra_l2_bridge_vlan *bvlan;
struct zebra_from_svi_param *in_param =
(struct zebra_from_svi_param *)_in_param;
int found = 0;
struct zebra_from_svi_param *in_param = _in_param;
bool found = false;
vni_t vni_id = 0;
vlanid_t vid = 0;
uint8_t bridge_vlan_aware;
if (!in_param)
return NS_WALK_STOP;
@ -728,48 +702,30 @@ static int zebra_evpn_from_svi_ns(struct ns *ns,
br_if = in_param->br_if;
zif = in_param->zif;
assert(zif);
bridge_vlan_aware = in_param->bridge_vlan_aware;
vid = in_param->vid;
br_zif = br_if->info;
assert(br_zif);
if (bridge_vlan_aware) {
bvlan = zebra_l2_bridge_if_vlan_find(br_zif, vid);
if (bvlan && bvlan->access_bd && bvlan->access_bd->vni) {
found = 1;
vni_id = bvlan->access_bd->vni;
}
} else {
/* TODO: Optimize with a hash. */
for (rn = route_top(zns->if_table); rn; rn = route_next(rn)) {
tmp_if = (struct interface *)rn->info;
if (!tmp_if)
continue;
zif = tmp_if->info;
if (!zif || zif->zif_type != ZEBRA_IF_VXLAN)
continue;
if (!if_is_operative(tmp_if))
continue;
if (!tmp_if)
goto done;
zif = tmp_if->info;
if (!zif || zif->zif_type != ZEBRA_IF_VXLAN)
goto done;
if (!if_is_operative(tmp_if))
goto done;
if (zif->brslave_info.br_if != br_if)
continue;
if (zif->brslave_info.br_if != br_if)
goto done;
vni_id =
zebra_vxlan_if_access_vlan_vni_find(zif, br_if);
if (vni_id) {
found = 1;
route_unlock_node(rn);
break;
}
}
}
vni_id = zebra_vxlan_if_access_vlan_vni_find(zif, br_if);
if (vni_id)
found = true;
done:
if (!found)
return NS_WALK_CONTINUE;
zevpn = zebra_evpn_lookup(vni_id);
if (p_zevpn)
*p_zevpn = zevpn;
in_param->zevpn = zevpn;
return NS_WALK_STOP;
}
@ -780,17 +736,21 @@ static int zebra_evpn_from_svi_ns(struct ns *ns,
struct zebra_evpn *zebra_evpn_from_svi(struct interface *ifp,
struct interface *br_if)
{
struct zebra_evpn *zevpn = NULL;
struct zebra_evpn **p_zevpn;
struct zebra_if *zif;
struct zebra_from_svi_param in_param;
struct zebra_l2_bridge_vlan *bvlan;
struct zebra_from_svi_param in_param = {};
vni_t vni_id = 0;
struct zebra_evpn *zevpn;
struct zebra_l2info_vlan *vl;
if (!br_if)
return NULL;
/* Make sure the linked interface is a bridge. */
if (!IS_ZEBRA_IF_BRIDGE(br_if))
if (!IS_ZEBRA_IF_BRIDGE(br_if)) {
zlog_debug("%s: br_if NOT a bridge", __func__);
return NULL;
}
/* Determine if bridge is VLAN-aware or not */
zif = br_if->info;
@ -798,57 +758,60 @@ struct zebra_evpn *zebra_evpn_from_svi(struct interface *ifp,
in_param.bridge_vlan_aware = IS_ZEBRA_IF_BRIDGE_VLAN_AWARE(zif);
in_param.vid = 0;
/* Don't need to search in this case */
if (in_param.bridge_vlan_aware) {
struct zebra_l2info_vlan *vl;
if (!IS_ZEBRA_IF_VLAN(ifp))
return NULL;
zevpn = NULL;
zif = ifp->info;
assert(zif);
vl = &zif->l2info.vl;
in_param.vid = vl->vid;
bvlan = zebra_l2_bridge_if_vlan_find(br_if->info, vl->vid);
if (bvlan && bvlan->access_bd && bvlan->access_bd->vni) {
vni_id = bvlan->access_bd->vni;
zevpn = zebra_evpn_lookup(vni_id);
}
return zevpn;
}
/* See if this interface (or interface plus VLAN Id) maps to a VxLAN:
* search all NSes
*/
in_param.br_if = br_if;
in_param.zif = zif;
p_zevpn = &zevpn;
/* See if this interface (or interface plus VLAN Id) maps to a VxLAN */
ns_walk_func(zebra_evpn_from_svi_ns, (void *)&in_param,
(void **)p_zevpn);
return zevpn;
zebra_ns_ifp_walk_all(zebra_evpn_from_svi_ns, &in_param);
return in_param.zevpn;
}
static int zvni_map_to_macvlan_ns(struct ns *ns, void *_in_param, void **_p_ifp)
static int zvni_map_to_macvlan_ns(struct interface *tmp_if, void *_in_param)
{
struct zebra_ns *zns = ns->info;
struct zebra_from_svi_param *in_param =
(struct zebra_from_svi_param *)_in_param;
struct interface **p_ifp = (struct interface **)_p_ifp;
struct route_node *rn;
struct interface *tmp_if = NULL;
struct zebra_from_svi_param *in_param = _in_param;
struct zebra_if *zif;
assert(in_param && p_ifp);
assert(in_param);
/* Identify corresponding VLAN interface. */
for (rn = route_top(zns->if_table); rn; rn = route_next(rn)) {
tmp_if = (struct interface *)rn->info;
/* Check oper status of the SVI. */
if (!tmp_if || !if_is_operative(tmp_if))
continue;
zif = tmp_if->info;
if (!zif || zif->zif_type != ZEBRA_IF_MACVLAN)
continue;
/* Check oper status of the SVI. */
if (!tmp_if || !if_is_operative(tmp_if))
goto done;
if (zif->link == in_param->svi_if) {
*p_ifp = tmp_if;
route_unlock_node(rn);
return NS_WALK_STOP;
}
zif = tmp_if->info;
if (!zif || zif->zif_type != ZEBRA_IF_MACVLAN)
goto done;
if (zif->link == in_param->svi_if) {
in_param->ret_ifp = tmp_if;
return NS_WALK_STOP;
}
done:
return NS_WALK_CONTINUE;
}
@ -857,17 +820,16 @@ static int zvni_map_to_macvlan_ns(struct ns *ns, void *_in_param, void **_p_ifp)
struct interface *zebra_evpn_map_to_macvlan(struct interface *br_if,
struct interface *svi_if)
{
struct interface *tmp_if = NULL;
struct zebra_if *zif;
struct interface **p_ifp;
struct zebra_from_svi_param in_param;
struct zebra_from_svi_param in_param = {};
/* Defensive check, caller expected to invoke only with valid bridge. */
if (!br_if)
return NULL;
if (!svi_if) {
zlog_debug("svi_if is not passed.");
if (IS_ZEBRA_DEBUG_VXLAN)
zlog_debug("%s: svi_if is not passed.", __func__);
return NULL;
}
@ -879,11 +841,10 @@ struct interface *zebra_evpn_map_to_macvlan(struct interface *br_if,
in_param.br_if = br_if;
in_param.zif = NULL;
in_param.svi_if = svi_if;
p_ifp = &tmp_if;
/* Identify corresponding VLAN interface. */
ns_walk_func(zvni_map_to_macvlan_ns, (void *)&in_param, (void **)p_ifp);
return tmp_if;
zebra_ns_ifp_walk_all(zvni_map_to_macvlan_ns, &in_param);
return in_param.ret_ifp;
}
/*

View file

@ -116,7 +116,10 @@ struct zebra_evpn {
struct zebra_from_svi_param {
struct interface *br_if;
struct interface *svi_if;
struct interface *ret_ifp;
struct zebra_if *zif;
struct zebra_evpn *zevpn;
struct zebra_l3vni *zl3vni;
uint8_t bridge_vlan_aware;
vlanid_t vid;
};

View file

@ -28,9 +28,185 @@
extern struct zebra_privs_t zserv_privs;
DEFINE_MTYPE_STATIC(ZEBRA, ZEBRA_NS, "Zebra Name Space");
DEFINE_MTYPE_STATIC(ZEBRA, ZNS_IFP, "Zebra NS Ifp");
static int ifp_tree_cmp(const struct ifp_tree_link *a, const struct ifp_tree_link *b);
DECLARE_RBTREE_UNIQ(ifp_tree, struct ifp_tree_link, link, ifp_tree_cmp);
static struct zebra_ns *dzns;
static int ifp_tree_cmp(const struct ifp_tree_link *a, const struct ifp_tree_link *b)
{
return (a->ifindex - b->ifindex);
}
/*
* Link an ifp into its parent NS
*/
void zebra_ns_link_ifp(struct zebra_ns *zns, struct interface *ifp)
{
struct zebra_if *zif;
struct ifp_tree_link *link, tlink = {};
zif = ifp->info;
assert(zif != NULL);
if (zif->ns_tree_link) {
assert(zif->ns_tree_link->zns == zns);
assert(zif->ns_tree_link->ifp == ifp);
return;
}
/* Lookup first - already linked? */
tlink.ifindex = ifp->ifindex;
link = ifp_tree_find(&zns->ifp_tree, &tlink);
if (link) {
assert(link->ifp == ifp);
return;
}
/* Allocate new linkage struct and add */
link = XCALLOC(MTYPE_ZNS_IFP, sizeof(struct ifp_tree_link));
link->ifp = ifp;
link->ifindex = ifp->ifindex;
link->zns = zns;
ifp_tree_add(&zns->ifp_tree, link);
zif->ns_tree_link = link;
}
/*
* Unlink an ifp from its parent NS (probably because the ifp is being deleted)
*/
void zebra_ns_unlink_ifp(struct interface *ifp)
{
struct zebra_if *zif;
struct ifp_tree_link *link;
struct zebra_ns *zns;
zif = ifp->info;
if (zif && zif->ns_tree_link) {
link = zif->ns_tree_link;
zns = link->zns;
ifp_tree_del(&zns->ifp_tree, link);
zif->ns_tree_link = NULL;
XFREE(MTYPE_ZNS_IFP, link);
}
}
/*
* ifp lookup apis
*/
struct interface *zebra_ns_lookup_ifp(struct zebra_ns *zns, uint32_t ifindex)
{
struct interface *ifp = NULL;
struct ifp_tree_link *link, tlink = {};
/* Init temp struct for lookup */
tlink.ifindex = ifindex;
link = ifp_tree_find(&zns->ifp_tree, &tlink);
if (link)
ifp = link->ifp;
return ifp;
}
static int lookup_ifp_name_cb(struct interface *ifp, void *arg);
struct ifp_name_ctx {
const char *ifname;
struct interface *ifp;
};
struct interface *zebra_ns_lookup_ifp_name(struct zebra_ns *zns, const char *ifname)
{
struct ifp_name_ctx ctx = {};
/* Hand context struct into walker function for use in its callback */
ctx.ifname = ifname;
zebra_ns_ifp_walk(zns, lookup_ifp_name_cb, &ctx);
return ctx.ifp;
}
static int lookup_ifp_name_cb(struct interface *ifp, void *arg)
{
struct ifp_name_ctx *pctx = arg;
if (strcmp(ifp->name, pctx->ifname) == 0) {
pctx->ifp = ifp;
return NS_WALK_STOP;
}
return NS_WALK_CONTINUE;
}
/* Iterate collection of ifps, calling application's callback. Callback uses
* return semantics from lib/ns.h: return NS_WALK_STOP to stop the iteration.
* Caller's 'arg' is included in each callback.
*/
int zebra_ns_ifp_walk(struct zebra_ns *zns,
int (*func)(struct interface *ifp, void *arg), void *arg)
{
struct ifp_tree_link *link;
int ret = NS_WALK_CONTINUE;
frr_each (ifp_tree, &zns->ifp_tree, link) {
ret = (func)(link->ifp, arg);
if (ret == NS_WALK_STOP)
break;
}
if (ret == NS_WALK_STOP)
return NS_WALK_STOP;
else
return NS_WALK_CONTINUE;
}
/*
* Walk all NSes, and all ifps for each NS.
*/
struct ns_ifp_walk_ctx {
int (*func)(struct interface *ifp, void *arg);
void *arg;
int ret;
};
static int ns_ifp_walker(struct ns *ns, void *in_param, void **unused);
void zebra_ns_ifp_walk_all(int (*func)(struct interface *ifp, void *arg), void *arg)
{
struct ns_ifp_walk_ctx ctx = {};
ctx.func = func;
ctx.arg = arg;
ns_walk_func(ns_ifp_walker, &ctx, NULL);
}
static int ns_ifp_walker(struct ns *ns, void *in_param, void **unused)
{
struct zebra_ns *zns;
struct ns_ifp_walk_ctx *ctx = in_param;
int ret = NS_WALK_CONTINUE;
zns = ns->info;
if (zns == NULL)
goto done;
ret = zebra_ns_ifp_walk(zns, ctx->func, ctx->arg);
done:
return ret;
}
static int zebra_ns_disable_internal(struct zebra_ns *zns, bool complete);
struct zebra_ns *zebra_ns_lookup(ns_id_t ns_id)
@ -58,7 +234,7 @@ static int zebra_ns_new(struct ns *ns)
zns->ns_id = ns->ns_id;
/* Do any needed per-NS data structure allocation. */
zns->if_table = route_table_init();
ifp_tree_init(&zns->ifp_tree);
return 0;
}
@ -66,11 +242,22 @@ static int zebra_ns_new(struct ns *ns)
static int zebra_ns_delete(struct ns *ns)
{
struct zebra_ns *zns = (struct zebra_ns *)ns->info;
struct zebra_if *zif;
struct ifp_tree_link *link;
if (IS_ZEBRA_DEBUG_EVENT)
zlog_info("ZNS %s with id %u (deleted)", ns->name, ns->ns_id);
if (!zns)
return 0;
/* Clean up ifp tree */
while ((link = ifp_tree_pop(&zns->ifp_tree)) != NULL) {
zif = link->ifp->info;
zif->ns_tree_link = NULL;
XFREE(MTYPE_ZNS_IFP, link);
}
XFREE(MTYPE_ZEBRA_NS, ns->info);
return 0;
}
@ -157,10 +344,6 @@ int zebra_ns_enable(ns_id_t ns_id, void **info)
*/
static int zebra_ns_disable_internal(struct zebra_ns *zns, bool complete)
{
if (zns->if_table)
route_table_finish(zns->if_table);
zns->if_table = NULL;
zebra_dplane_ns_enable(zns, false /*Disable*/);
kernel_terminate(zns, complete);

View file

@ -32,6 +32,20 @@ struct nlsock {
};
#endif
/* Tree of interfaces: external linkage struct, and rbtree */
PREDECL_RBTREE_UNIQ(ifp_tree);
struct ifp_tree_link {
struct ifp_tree_item link;
ifindex_t ifindex;
struct interface *ifp;
/* Backpointer */
struct zebra_ns *zns;
};
struct zebra_ns {
/* net-ns name. */
char name[VRF_NAMSIZ];
@ -53,7 +67,8 @@ struct zebra_ns {
struct nlsock ge_netlink_cmd; /* command channel for generic netlink */
#endif
struct route_table *if_table;
/* Tree of interfaces in this ns */
struct ifp_tree_head ifp_tree;
/* Back pointer */
struct ns *ns;
@ -61,6 +76,23 @@ struct zebra_ns {
struct zebra_ns *zebra_ns_lookup(ns_id_t ns_id);
/* Manage collection of ifps per-NS */
void zebra_ns_link_ifp(struct zebra_ns *zns, struct interface *ifp);
void zebra_ns_unlink_ifp(struct interface *ifp);
struct interface *zebra_ns_lookup_ifp(struct zebra_ns *zns, uint32_t ifindex);
struct interface *zebra_ns_lookup_ifp_name(struct zebra_ns *zns, const char *ifname);
/* Iterate collection of ifps, calling application's callback. Callback uses
* return semantics from lib/ns.h: return NS_WALK_STOP to stop the iteration.
* Caller's 'arg' is included in each callback.
* The iterator returns STOP or CONTINUE also.
*/
int zebra_ns_ifp_walk(struct zebra_ns *zns,
int (*func)(struct interface *ifp, void *arg), void *arg);
/* Walk all NSes, and all ifps for each NS. */
void zebra_ns_ifp_walk_all(int (*func)(struct interface *ifp, void *arg), void *arg);
int zebra_ns_init(void);
int zebra_ns_enable(ns_id_t ns_id, void **info);
int zebra_ns_disabled(struct ns *ns);

View file

@ -859,39 +859,30 @@ static void zl3vni_print_hash_detail(struct hash_bucket *bucket, void *data)
vty_out(vty, "\n");
}
static int zvni_map_to_svi_ns(struct ns *ns,
void *_in_param,
void **_p_ifp)
static int zvni_map_to_svi_ns(struct interface *tmp_if, void *_in_param)
{
struct zebra_ns *zns = ns->info;
struct route_node *rn;
struct zebra_from_svi_param *in_param =
(struct zebra_from_svi_param *)_in_param;
struct zebra_from_svi_param *in_param = _in_param;
struct zebra_l2info_vlan *vl;
struct interface *tmp_if = NULL;
struct interface **p_ifp = (struct interface **)_p_ifp;
struct zebra_if *zif;
assert(in_param && p_ifp);
assert(in_param);
/* TODO: Optimize with a hash. */
for (rn = route_top(zns->if_table); rn; rn = route_next(rn)) {
tmp_if = (struct interface *)rn->info;
/* Check oper status of the SVI. */
if (!tmp_if || !if_is_operative(tmp_if))
continue;
zif = tmp_if->info;
if (!zif || zif->zif_type != ZEBRA_IF_VLAN
|| zif->link != in_param->br_if)
continue;
vl = (struct zebra_l2info_vlan *)&zif->l2info.vl;
if (vl->vid == in_param->vid) {
*p_ifp = tmp_if;
route_unlock_node(rn);
return NS_WALK_STOP;
}
/* Check oper status of the SVI. */
if (!tmp_if || !if_is_operative(tmp_if))
goto done;
zif = tmp_if->info;
if (!zif || zif->zif_type != ZEBRA_IF_VLAN || zif->link != in_param->br_if)
goto done;
vl = (struct zebra_l2info_vlan *)&zif->l2info.vl;
if (vl->vid == in_param->vid) {
in_param->ret_ifp = tmp_if;
return NS_WALK_STOP;
}
done:
return NS_WALK_CONTINUE;
}
@ -904,10 +895,9 @@ static int zvni_map_to_svi_ns(struct ns *ns,
*/
struct interface *zvni_map_to_svi(vlanid_t vid, struct interface *br_if)
{
struct interface *tmp_if = NULL;
struct zebra_if *zif;
struct zebra_from_svi_param in_param;
struct interface **p_ifp;
struct zebra_from_svi_param in_param = {};
/* Defensive check, caller expected to invoke only with valid bridge. */
if (!br_if)
return NULL;
@ -922,12 +912,11 @@ struct interface *zvni_map_to_svi(vlanid_t vid, struct interface *br_if)
in_param.vid = vid;
in_param.br_if = br_if;
in_param.zif = NULL;
p_ifp = &tmp_if;
/* Identify corresponding VLAN interface. */
ns_walk_func(zvni_map_to_svi_ns, (void *)&in_param,
(void **)p_ifp);
return tmp_if;
zebra_ns_ifp_walk_all(zvni_map_to_svi_ns, &in_param);
return in_param.ret_ifp;
}
int zebra_evpn_vxlan_del(struct zebra_evpn *zevpn)
@ -1007,9 +996,9 @@ static int zevpn_build_vni_hash_table(struct zebra_if *zif,
*/
zevpn = zebra_evpn_lookup(vni);
if (zevpn) {
zlog_debug(
"EVPN hash already present for IF %s(%u) L2-VNI %u",
ifp->name, ifp->ifindex, vni);
if (IS_ZEBRA_DEBUG_VXLAN)
zlog_debug("EVPN hash already present for IF %s(%u) L2-VNI %u",
ifp->name, ifp->ifindex, vni);
/*
* Inform BGP if intf is up and mapped to
@ -1072,48 +1061,32 @@ static int zevpn_build_vni_hash_table(struct zebra_if *zif,
return 0;
}
static int zevpn_build_hash_table_zns(struct ns *ns,
void *param_in __attribute__((unused)),
void **param_out __attribute__((unused)))
static int zevpn_build_hash_table_zns(struct interface *ifp, void *arg)
{
struct zebra_ns *zns = ns->info;
struct route_node *rn;
struct interface *ifp;
struct zebra_vrf *zvrf;
struct zebra_vrf *zvrf = arg;
struct zebra_if *zif;
struct zebra_l2info_vxlan *vxl;
zvrf = zebra_vrf_get_evpn();
/* Walk VxLAN interfaces and create EVPN hash. */
for (rn = route_top(zns->if_table); rn; rn = route_next(rn)) {
struct zebra_if *zif;
struct zebra_l2info_vxlan *vxl;
ifp = (struct interface *)rn->info;
if (!ifp)
continue;
zif = ifp->info;
if (!zif || zif->zif_type != ZEBRA_IF_VXLAN)
continue;
vxl = &zif->l2info.vxl;
/* link of VXLAN interface should be in zebra_evpn_vrf */
if (zvrf->zns->ns_id != vxl->link_nsid) {
if (IS_ZEBRA_DEBUG_VXLAN)
zlog_debug(
"Intf %s(%u) link not in same "
"namespace than BGP EVPN core instance ",
ifp->name, ifp->ifindex);
continue;
}
zif = ifp->info;
if (!zif || zif->zif_type != ZEBRA_IF_VXLAN)
goto done;
vxl = &zif->l2info.vxl;
/* link of VXLAN interface should be in zebra_evpn_vrf */
if (zvrf->zns->ns_id != vxl->link_nsid) {
if (IS_ZEBRA_DEBUG_VXLAN)
zlog_debug("Building vni table for %s-if %s",
IS_ZEBRA_VXLAN_IF_VNI(zif) ? "vni" : "svd",
ifp->name);
zebra_vxlan_if_vni_iterate(zif, zevpn_build_vni_hash_table,
NULL);
zlog_debug("Intf %s(%u) link not in same namespace as BGP EVPN core instance",
ifp->name, ifp->ifindex);
goto done;
}
if (IS_ZEBRA_DEBUG_VXLAN)
zlog_debug("Building vni table for %s-if %s",
IS_ZEBRA_VXLAN_IF_VNI(zif) ? "vni" : "svd", ifp->name);
zebra_vxlan_if_vni_iterate(zif, zevpn_build_vni_hash_table, NULL);
done:
return NS_WALK_CONTINUE;
}
@ -1124,7 +1097,13 @@ static int zevpn_build_hash_table_zns(struct ns *ns,
static void zevpn_build_hash_table(void)
{
ns_walk_func(zevpn_build_hash_table_zns, NULL, NULL);
struct zebra_vrf *zvrf;
zvrf = zebra_vrf_get_evpn();
if (zvrf == NULL)
return;
zebra_ns_ifp_walk_all(zevpn_build_hash_table_zns, zvrf);
}
/*
@ -1968,70 +1947,63 @@ static int zl3vni_del(struct zebra_l3vni *zl3vni)
return 0;
}
static int zl3vni_map_to_vxlan_if_ns(struct ns *ns,
void *_zl3vni,
void **_pifp)
{
struct zebra_ns *zns = ns->info;
struct zebra_l3vni *zl3vni = (struct zebra_l3vni *)_zl3vni;
struct route_node *rn = NULL;
struct interface *ifp = NULL;
/* Context arg for zl3vni map iteration */
struct zl3vni_map_arg {
struct zebra_vrf *zvrf;
struct zebra_l3vni *zl3vni;
struct interface *ret_ifp;
};
zvrf = zebra_vrf_get_evpn();
static int zl3vni_map_to_vxlan_if_ns(struct interface *ifp, void *arg)
{
struct zl3vni_map_arg *ctx = arg;
struct zebra_l3vni *zl3vni = ctx->zl3vni;
struct zebra_vrf *zvrf = ctx->zvrf;
struct zebra_if *zif = NULL;
struct zebra_l2info_vxlan *vxl;
struct zebra_vxlan_vni *vni = NULL;
assert(_pifp);
/* look for vxlan-interface */
/* loop through all vxlan-interface */
for (rn = route_top(zns->if_table); rn; rn = route_next(rn)) {
zif = ifp->info;
if (!zif || zif->zif_type != ZEBRA_IF_VXLAN)
goto done;
struct zebra_if *zif = NULL;
struct zebra_l2info_vxlan *vxl;
struct zebra_vxlan_vni *vni = NULL;
vxl = &zif->l2info.vxl;
vni = zebra_vxlan_if_vni_find(zif, zl3vni->vni);
if (!vni || vni->vni != zl3vni->vni)
goto done;
ifp = (struct interface *)rn->info;
if (!ifp)
continue;
zif = ifp->info;
if (!zif || zif->zif_type != ZEBRA_IF_VXLAN)
continue;
vxl = &zif->l2info.vxl;
vni = zebra_vxlan_if_vni_find(zif, zl3vni->vni);
if (!vni || vni->vni != zl3vni->vni)
continue;
/* link of VXLAN interface should be in zebra_evpn_vrf */
if (zvrf->zns->ns_id != vxl->link_nsid) {
if (IS_ZEBRA_DEBUG_VXLAN)
zlog_debug(
"Intf %s(%u) VNI %u, link not in same "
"namespace than BGP EVPN core instance ",
ifp->name, ifp->ifindex, vni->vni);
continue;
}
zl3vni->local_vtep_ip = zif->l2info.vxl.vtep_ip;
*_pifp = (void *)ifp;
route_unlock_node(rn);
return NS_WALK_STOP;
/* link of VXLAN interface should be in zebra_evpn_vrf */
if (zvrf->zns->ns_id != vxl->link_nsid) {
if (IS_ZEBRA_DEBUG_VXLAN)
zlog_debug("Intf %s(%u) VNI %u, link not in same namespace as BGP EVPN core instance",
ifp->name, ifp->ifindex, vni->vni);
goto done;
}
zl3vni->local_vtep_ip = zif->l2info.vxl.vtep_ip;
ctx->ret_ifp = ifp;
return NS_WALK_STOP;
done:
return NS_WALK_CONTINUE;
}
struct interface *zl3vni_map_to_vxlan_if(struct zebra_l3vni *zl3vni)
{
struct interface **p_ifp;
struct interface *ifp = NULL;
struct zl3vni_map_arg arg = {};
p_ifp = &ifp;
arg.zl3vni = zl3vni;
arg.zvrf = zebra_vrf_get_evpn();
ns_walk_func(zl3vni_map_to_vxlan_if_ns,
(void *)zl3vni, (void **)p_ifp);
return ifp;
if (arg.zvrf == NULL)
return NULL;
zebra_ns_ifp_walk_all(zl3vni_map_to_vxlan_if_ns, &arg);
return arg.ret_ifp;
}
struct interface *zl3vni_map_to_svi_if(struct zebra_l3vni *zl3vni)
@ -2086,57 +2058,35 @@ struct zebra_l3vni *zl3vni_from_vrf(vrf_id_t vrf_id)
return zl3vni_lookup(zvrf->l3vni);
}
static int zl3vni_from_svi_ns(struct ns *ns, void *_in_param, void **_p_zl3vni)
/* loop through all vxlan-interface */
static int zl3vni_from_svi_ns(struct interface *tmp_if, void *_in_param)
{
int found = 0;
vni_t vni_id = 0;
struct zebra_ns *zns = ns->info;
struct zebra_l3vni **p_zl3vni = (struct zebra_l3vni **)_p_zl3vni;
struct zebra_from_svi_param *in_param =
(struct zebra_from_svi_param *)_in_param;
struct route_node *rn = NULL;
struct interface *tmp_if = NULL;
struct zebra_from_svi_param *in_param = _in_param;
struct zebra_if *zif = NULL;
struct zebra_if *br_zif = NULL;
assert(in_param && p_zl3vni);
assert(in_param);
br_zif = in_param->br_if->info;
assert(br_zif);
zif = tmp_if->info;
if (!zif || zif->zif_type != ZEBRA_IF_VXLAN)
goto done;
if (!if_is_operative(tmp_if))
goto done;
if (in_param->bridge_vlan_aware) {
vni_id = zebra_l2_bridge_if_vni_find(br_zif, in_param->vid);
if (vni_id)
found = 1;
} else {
/* loop through all vxlan-interface */
for (rn = route_top(zns->if_table); rn; rn = route_next(rn)) {
tmp_if = (struct interface *)rn->info;
if (!tmp_if)
continue;
zif = tmp_if->info;
if (!zif || zif->zif_type != ZEBRA_IF_VXLAN)
continue;
if (!if_is_operative(tmp_if))
continue;
if (zif->brslave_info.br_if != in_param->br_if)
goto done;
if (zif->brslave_info.br_if != in_param->br_if)
continue;
vni_id = zebra_vxlan_if_access_vlan_vni_find(
zif, in_param->br_if);
if (vni_id) {
found = 1;
route_unlock_node(rn);
break;
}
}
vni_id = zebra_vxlan_if_access_vlan_vni_find(zif, in_param->br_if);
if (vni_id) {
in_param->zl3vni = zl3vni_lookup(vni_id);
found = 1;
}
done:
if (!found)
return NS_WALK_CONTINUE;
*p_zl3vni = zl3vni_lookup(vni_id);
return NS_WALK_STOP;
}
@ -2147,10 +2097,11 @@ static int zl3vni_from_svi_ns(struct ns *ns, void *_in_param, void **_p_zl3vni)
static struct zebra_l3vni *zl3vni_from_svi(struct interface *ifp,
struct interface *br_if)
{
struct zebra_l3vni *zl3vni = NULL;
struct zebra_if *zif = NULL;
vni_t vni_id = 0;
struct zebra_if *br_zif = NULL;
struct zebra_from_svi_param in_param = {};
struct zebra_l3vni **p_zl3vni;
struct zebra_l2info_vlan *vl;
if (!br_if)
return NULL;
@ -2158,15 +2109,15 @@ static struct zebra_l3vni *zl3vni_from_svi(struct interface *ifp,
/* Make sure the linked interface is a bridge. */
if (!IS_ZEBRA_IF_BRIDGE(br_if))
return NULL;
in_param.br_if = br_if;
/* Determine if bridge is VLAN-aware or not */
zif = br_if->info;
assert(zif);
in_param.bridge_vlan_aware = IS_ZEBRA_IF_BRIDGE_VLAN_AWARE(zif);
if (in_param.bridge_vlan_aware) {
struct zebra_l2info_vlan *vl;
br_zif = br_if->info;
assert(br_zif);
in_param.bridge_vlan_aware = IS_ZEBRA_IF_BRIDGE_VLAN_AWARE(br_zif);
if (in_param.bridge_vlan_aware) {
if (!IS_ZEBRA_IF_VLAN(ifp))
return NULL;
@ -2174,15 +2125,18 @@ static struct zebra_l3vni *zl3vni_from_svi(struct interface *ifp,
assert(zif);
vl = &zif->l2info.vl;
in_param.vid = vl->vid;
vni_id = zebra_l2_bridge_if_vni_find(br_zif, in_param.vid);
if (vni_id)
return zl3vni_lookup(vni_id);
}
/* See if this interface (or interface plus VLAN Id) maps to a VxLAN */
/* TODO: Optimize with a hash. */
p_zl3vni = &zl3vni;
zebra_ns_ifp_walk_all(zl3vni_from_svi_ns, &in_param);
ns_walk_func(zl3vni_from_svi_ns, (void *)&in_param, (void **)p_zl3vni);
return zl3vni;
return in_param.zl3vni;
}
vni_t vni_id_from_svi(struct interface *ifp, struct interface *br_if)
@ -2336,6 +2290,36 @@ static void zevpn_add_to_l3vni_list(struct hash_bucket *bucket, void *ctxt)
listnode_add_sort(zl3vni->l2vnis, zevpn);
}
/* Helper for vni transition iterator */
struct vni_trans_ctx {
vni_t vni;
struct zebra_vxlan_vni *vnip;
struct interface *ret_ifp;
};
static int vni_trans_cb(struct interface *ifp, void *arg)
{
struct vni_trans_ctx *ctx = arg;
struct zebra_if *zif;
struct zebra_vxlan_vni *vnip;
/* Find VxLAN interface for this VNI. */
zif = ifp->info;
if (!zif || zif->zif_type != ZEBRA_IF_VXLAN)
goto done;
vnip = zebra_vxlan_if_vni_find(zif, ctx->vni);
if (vnip) {
ctx->ret_ifp = ifp;
ctx->vnip = vnip;
return NS_WALK_STOP;
}
done:
return NS_WALK_CONTINUE;
}
/*
* Handle transition of vni from l2 to l3 and vice versa.
* This function handles only the L2VNI add/delete part of
@ -2386,39 +2370,25 @@ static int zebra_vxlan_handle_vni_transition(struct zebra_vrf *zvrf, vni_t vni,
return -1;
}
} else {
struct zebra_ns *zns;
struct route_node *rn;
struct interface *ifp;
struct zebra_if *zif;
struct zebra_vxlan_vni *vnip;
struct zebra_l2info_vxlan *vxl;
struct interface *vlan_if;
bool found = false;
struct zebra_if *zif;
struct zebra_ns *zns;
struct vni_trans_ctx ctx = {};
if (IS_ZEBRA_DEBUG_VXLAN)
zlog_debug("Adding L2-VNI %u - transition from L3-VNI",
vni);
/* Find VxLAN interface for this VNI. */
zns = zebra_ns_lookup(NS_DEFAULT);
for (rn = route_top(zns->if_table); rn; rn = route_next(rn)) {
ifp = (struct interface *)rn->info;
if (!ifp)
continue;
zif = ifp->info;
if (!zif || zif->zif_type != ZEBRA_IF_VXLAN)
continue;
vxl = &zif->l2info.vxl;
vnip = zebra_vxlan_if_vni_find(zif, vni);
if (vnip) {
found = true;
route_unlock_node(rn);
break;
}
}
ctx.vni = vni;
if (!found) {
/* Find VxLAN interface for this VNI. */
zebra_ns_ifp_walk(zns, vni_trans_cb, &ctx);
if (ctx.ret_ifp == NULL) {
if (IS_ZEBRA_DEBUG_VXLAN)
zlog_err(
"Adding L2-VNI - Failed to find VxLAN interface for VNI %u",
@ -2431,6 +2401,10 @@ static int zebra_vxlan_handle_vni_transition(struct zebra_vrf *zvrf, vni_t vni,
if (zevpn)
return 0;
zif = ctx.ret_ifp->info;
vnip = ctx.vnip;
vxl = &zif->l2info.vxl;
zevpn = zebra_evpn_add(vni);
/* Find bridge interface for the VNI */
@ -2443,13 +2417,13 @@ static int zebra_vxlan_handle_vni_transition(struct zebra_vrf *zvrf, vni_t vni,
listnode_add_sort_nodup(zl3vni->l2vnis, zevpn);
}
zevpn->vxlan_if = ifp;
zevpn->vxlan_if = ctx.ret_ifp;
zevpn->local_vtep_ip = vxl->vtep_ip;
/* Inform BGP if the VNI is up and mapped to a bridge. */
if (if_is_operative(ifp) && zif->brslave_info.br_if) {
if (if_is_operative(ctx.ret_ifp) && zif->brslave_info.br_if) {
zebra_evpn_send_add_to_client(zevpn);
zebra_evpn_read_mac_neigh(zevpn, ifp);
zebra_evpn_read_mac_neigh(zevpn, ctx.ret_ifp);
}
}