diff options
| -rw-r--r-- | zebra/label_manager.h | 2 | ||||
| -rw-r--r-- | zebra/main.c | 1 | ||||
| -rw-r--r-- | zebra/redistribute.c | 1 | ||||
| -rw-r--r-- | zebra/redistribute.h | 4 | ||||
| -rw-r--r-- | zebra/router-id.c | 1 | ||||
| -rw-r--r-- | zebra/rt_netlink.c | 2 | ||||
| -rw-r--r-- | zebra/rtadv.c | 2 | ||||
| -rw-r--r-- | zebra/subdir.am | 2 | ||||
| -rw-r--r-- | zebra/table_manager.h | 3 | ||||
| -rw-r--r-- | zebra/zapi_msg.c | 2947 | ||||
| -rw-r--r-- | zebra/zapi_msg.h | 80 | ||||
| -rw-r--r-- | zebra/zebra_ns.h | 3 | ||||
| -rw-r--r-- | zebra/zebra_pbr.c | 1 | ||||
| -rw-r--r-- | zebra/zebra_ptm.h | 1 | ||||
| -rw-r--r-- | zebra/zebra_ptm_redistribute.c | 1 | ||||
| -rw-r--r-- | zebra/zebra_pw.c | 1 | ||||
| -rw-r--r-- | zebra/zebra_pw.h | 7 | ||||
| -rw-r--r-- | zebra/zebra_rib.c | 2 | ||||
| -rw-r--r-- | zebra/zebra_rnh.c | 83 | ||||
| -rw-r--r-- | zebra/zebra_rnh.h | 10 | ||||
| -rw-r--r-- | zebra/zebra_routemap.h | 2 | ||||
| -rw-r--r-- | zebra/zebra_vrf.c | 2 | ||||
| -rw-r--r-- | zebra/zserv.c | 3040 | ||||
| -rw-r--r-- | zebra/zserv.h | 91 |
24 files changed, 3205 insertions, 3084 deletions
diff --git a/zebra/label_manager.h b/zebra/label_manager.h index 4395e6897..ddd933ba2 100644 --- a/zebra/label_manager.h +++ b/zebra/label_manager.h @@ -29,6 +29,8 @@ #include "lib/linklist.h" #include "lib/thread.h" +#include "zebra/zserv.h" + #define NO_PROTO 0 /* diff --git a/zebra/main.c b/zebra/main.c index c8d7f83fb..0b182253f 100644 --- a/zebra/main.c +++ b/zebra/main.c @@ -36,6 +36,7 @@ #include "vrf.h" #include "logicalrouter.h" #include "libfrr.h" +#include "routemap.h" #include "zebra/rib.h" #include "zebra/zserv.h" diff --git a/zebra/redistribute.c b/zebra/redistribute.c index a51cd6ecc..c7915908f 100644 --- a/zebra/redistribute.c +++ b/zebra/redistribute.c @@ -40,6 +40,7 @@ #include "zebra/redistribute.h" #include "zebra/debug.h" #include "zebra/router-id.h" +#include "zebra/zapi_msg.h" #include "zebra/zebra_memory.h" #include "zebra/zebra_vxlan.h" diff --git a/zebra/redistribute.h b/zebra/redistribute.h index c78480d9a..9b4820acd 100644 --- a/zebra/redistribute.h +++ b/zebra/redistribute.h @@ -23,10 +23,12 @@ #define _ZEBRA_REDISTRIBUTE_H #include "table.h" -#include "zserv.h" #include "vty.h" #include "vrf.h" +#include "zebra/zserv.h" +#include "zebra/rib.h" + /* ZAPI command handlers */ extern void zebra_redistribute_add(ZAPI_HANDLER_ARGS); extern void zebra_redistribute_delete(ZAPI_HANDLER_ARGS); diff --git a/zebra/router-id.c b/zebra/router-id.c index f6c88a216..252b558a8 100644 --- a/zebra/router-id.c +++ b/zebra/router-id.c @@ -39,6 +39,7 @@ #include "vrf.h" #include "zebra/zserv.h" +#include "zebra/zapi_msg.h" #include "zebra/zebra_vrf.h" #include "zebra/router-id.h" #include "zebra/redistribute.h" diff --git a/zebra/rt_netlink.c b/zebra/rt_netlink.c index e68e3aaaf..cdc52211c 100644 --- a/zebra/rt_netlink.c +++ b/zebra/rt_netlink.c @@ -50,7 +50,7 @@ #include "mpls.h" #include "vxlan.h" -#include "zebra/zserv.h" +#include "zebra/zapi_msg.h" #include "zebra/zebra_ns.h" #include "zebra/zebra_vrf.h" #include "zebra/rt.h" diff --git a/zebra/rtadv.c b/zebra/rtadv.c index c695b6566..dc918b1a9 100644 --- a/zebra/rtadv.c +++ b/zebra/rtadv.c @@ -40,7 +40,7 @@ #include "zebra/rtadv.h" #include "zebra/debug.h" #include "zebra/rib.h" -#include "zebra/zserv.h" +#include "zebra/zapi_msg.h" #include "zebra/zebra_ns.h" #include "zebra/zebra_vrf.h" diff --git a/zebra/subdir.am b/zebra/subdir.am index 9dbff7d40..45e285a9e 100644 --- a/zebra/subdir.am +++ b/zebra/subdir.am @@ -71,6 +71,7 @@ zebra_zebra_SOURCES = \ zebra/zebra_netns_id.c \ zebra/zebra_netns_notify.c \ zebra/table_manager.c \ + zebra/zapi_msg.c \ # end zebra/zebra_vty_clippy.c: $(CLIPPY_DEPS) @@ -115,6 +116,7 @@ noinst_HEADERS += \ zebra/zebra_netns_id.h \ zebra/zebra_netns_notify.h \ zebra/table_manager.h \ + zebra/zapi_msg.h \ # end zebra_zebra_irdp_la_SOURCES = \ diff --git a/zebra/table_manager.h b/zebra/table_manager.h index 527d5c29e..7aa9843d0 100644 --- a/zebra/table_manager.h +++ b/zebra/table_manager.h @@ -23,6 +23,9 @@ #include "lib/linklist.h" #include "lib/thread.h" +#include "lib/ns.h" + +#include "zebra/zserv.h" /* * Table chunk struct diff --git a/zebra/zapi_msg.c b/zebra/zapi_msg.c new file mode 100644 index 000000000..2c22dff84 --- /dev/null +++ b/zebra/zapi_msg.c @@ -0,0 +1,2947 @@ +/* + * Zebra API server. + * Portions: + * Copyright (C) 1997-1999 Kunihiro Ishiguro + * Copyright (C) 2015-2018 Cumulus Networks, Inc. + * et al. + * + * 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; see the file COPYING; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <zebra.h> +#include <libgen.h> + +#include "lib/prefix.h" +#include "lib/command.h" +#include "lib/if.h" +#include "lib/thread.h" +#include "lib/stream.h" +#include "lib/memory.h" +#include "lib/table.h" +#include "lib/network.h" +#include "lib/sockunion.h" +#include "lib/log.h" +#include "lib/zclient.h" +#include "lib/privs.h" +#include "lib/network.h" +#include "lib/buffer.h" +#include "lib/nexthop.h" +#include "lib/vrf.h" +#include "lib/libfrr.h" +#include "lib/sockopt.h" + +#include "zebra/rib.h" +#include "zebra/zebra_memory.h" +#include "zebra/zebra_ns.h" +#include "zebra/zebra_vrf.h" +#include "zebra/router-id.h" +#include "zebra/redistribute.h" +#include "zebra/debug.h" +#include "zebra/zebra_rnh.h" +#include "zebra/rt_netlink.h" +#include "zebra/interface.h" +#include "zebra/zebra_ptm.h" +#include "zebra/rtadv.h" +#include "zebra/zebra_mpls.h" +#include "zebra/zebra_mroute.h" +#include "zebra/label_manager.h" +#include "zebra/zebra_vxlan.h" +#include "zebra/rt.h" +#include "zebra/zebra_pbr.h" +#include "zebra/table_manager.h" +#include "zebra/zapi_msg.h" + +/* Encoding helpers -------------------------------------------------------- */ + +static void zserv_encode_interface(struct stream *s, struct interface *ifp) +{ + /* Interface information. */ + stream_put(s, ifp->name, INTERFACE_NAMSIZ); + stream_putl(s, ifp->ifindex); + stream_putc(s, ifp->status); + stream_putq(s, ifp->flags); + stream_putc(s, ifp->ptm_enable); + stream_putc(s, ifp->ptm_status); + stream_putl(s, ifp->metric); + stream_putl(s, ifp->speed); + stream_putl(s, ifp->mtu); + stream_putl(s, ifp->mtu6); + stream_putl(s, ifp->bandwidth); + stream_putl(s, ifp->ll_type); + stream_putl(s, ifp->hw_addr_len); + if (ifp->hw_addr_len) + stream_put(s, ifp->hw_addr, ifp->hw_addr_len); + + /* Then, Traffic Engineering parameters if any */ + if (HAS_LINK_PARAMS(ifp) && IS_LINK_PARAMS_SET(ifp->link_params)) { + stream_putc(s, 1); + zebra_interface_link_params_write(s, ifp); + } else + stream_putc(s, 0); + + /* Write packet size. */ + stream_putw_at(s, 0, stream_get_endp(s)); +} + +static void zserv_encode_vrf(struct stream *s, struct zebra_vrf *zvrf) +{ + struct vrf_data data; + const char *netns_name = zvrf_ns_name(zvrf); + + data.l.table_id = zvrf->table_id; + + if (netns_name) + strlcpy(data.l.netns_name, basename((char *)netns_name), + NS_NAMSIZ); + else + memset(data.l.netns_name, 0, NS_NAMSIZ); + /* Pass the tableid and the netns NAME */ + stream_put(s, &data, sizeof(struct vrf_data)); + /* Interface information. */ + stream_put(s, zvrf_name(zvrf), VRF_NAMSIZ); + /* Write packet size. */ + stream_putw_at(s, 0, stream_get_endp(s)); +} + +static int zserv_encode_nexthop(struct stream *s, struct nexthop *nexthop) +{ + stream_putc(s, nexthop->type); + switch (nexthop->type) { + case NEXTHOP_TYPE_IPV4: + case NEXTHOP_TYPE_IPV4_IFINDEX: + stream_put_in_addr(s, &nexthop->gate.ipv4); + stream_putl(s, nexthop->ifindex); + break; + case NEXTHOP_TYPE_IPV6: + stream_put(s, &nexthop->gate.ipv6, 16); + break; + case NEXTHOP_TYPE_IPV6_IFINDEX: + stream_put(s, &nexthop->gate.ipv6, 16); + stream_putl(s, nexthop->ifindex); + break; + case NEXTHOP_TYPE_IFINDEX: + stream_putl(s, nexthop->ifindex); + break; + default: + /* do nothing */ + break; + } + return 1; +} + +/* Send handlers ----------------------------------------------------------- */ + +/* Interface is added. Send ZEBRA_INTERFACE_ADD to client. */ +/* + * This function is called in the following situations: + * - in response to a 3-byte ZEBRA_INTERFACE_ADD request + * from the client. + * - at startup, when zebra figures out the available interfaces + * - when an interface is added (where support for + * RTM_IFANNOUNCE or AF_NETLINK sockets is available), or when + * an interface is marked IFF_UP (i.e., an RTM_IFINFO message is + * received) + */ +int zsend_interface_add(struct zserv *client, struct interface *ifp) +{ + struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); + + zclient_create_header(s, ZEBRA_INTERFACE_ADD, ifp->vrf_id); + zserv_encode_interface(s, ifp); + + client->ifadd_cnt++; + return zebra_server_send_message(client, s); +} + +/* Interface deletion from zebra daemon. */ +int zsend_interface_delete(struct zserv *client, struct interface *ifp) +{ + struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); + + zclient_create_header(s, ZEBRA_INTERFACE_DELETE, ifp->vrf_id); + zserv_encode_interface(s, ifp); + + client->ifdel_cnt++; + return zebra_server_send_message(client, s); +} + +int zsend_vrf_add(struct zserv *client, struct zebra_vrf *zvrf) +{ + struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); + + zclient_create_header(s, ZEBRA_VRF_ADD, zvrf_id(zvrf)); + zserv_encode_vrf(s, zvrf); + + client->vrfadd_cnt++; + return zebra_server_send_message(client, s); +} + +/* VRF deletion from zebra daemon. */ +int zsend_vrf_delete(struct zserv *client, struct zebra_vrf *zvrf) + +{ + struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); + + zclient_create_header(s, ZEBRA_VRF_DELETE, zvrf_id(zvrf)); + zserv_encode_vrf(s, zvrf); + + client->vrfdel_cnt++; + return zebra_server_send_message(client, s); +} + +int zsend_interface_link_params(struct zserv *client, struct interface *ifp) +{ + struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); + + /* Check this client need interface information. */ + if (!client->ifinfo) { + stream_free(s); + return 0; + } + + if (!ifp->link_params) { + stream_free(s); + return 0; + } + + zclient_create_header(s, ZEBRA_INTERFACE_LINK_PARAMS, ifp->vrf_id); + + /* Add Interface Index */ + stream_putl(s, ifp->ifindex); + + /* Then TE Link Parameters */ + if (zebra_interface_link_params_write(s, ifp) == 0) { + stream_free(s); + return 0; + } + + /* Write packet size. */ + stream_putw_at(s, 0, stream_get_endp(s)); + + return zebra_server_send_message(client, s); +} + +/* Interface address is added/deleted. Send ZEBRA_INTERFACE_ADDRESS_ADD or + * ZEBRA_INTERFACE_ADDRESS_DELETE to the client. + * + * A ZEBRA_INTERFACE_ADDRESS_ADD is sent in the following situations: + * - in response to a 3-byte ZEBRA_INTERFACE_ADD request + * from the client, after the ZEBRA_INTERFACE_ADD has been + * sent from zebra to the client + * - redistribute new address info to all clients in the following situations + * - at startup, when zebra figures out the available interfaces + * - when an interface is added (where support for + * RTM_IFANNOUNCE or AF_NETLINK sockets is available), or when + * an interface is marked IFF_UP (i.e., an RTM_IFINFO message is + * received) + * - for the vty commands "ip address A.B.C.D/M [<secondary>|<label LINE>]" + * and "no bandwidth <1-10000000>", "ipv6 address X:X::X:X/M" + * - when an RTM_NEWADDR message is received from the kernel, + * + * The call tree that triggers ZEBRA_INTERFACE_ADDRESS_DELETE: + * + * zsend_interface_address(DELETE) + * ^ + * | + * zebra_interface_address_delete_update + * ^ ^ ^ + * | | if_delete_update + * | | + * ip_address_uninstall connected_delete_ipv4 + * [ipv6_addresss_uninstall] [connected_delete_ipv6] + * ^ ^ + * | | + * | RTM_NEWADDR on routing/netlink socket + * | + * vty commands: + * "no ip address A.B.C.D/M [label LINE]" + * "no ip address A.B.C.D/M secondary" + * ["no ipv6 address X:X::X:X/M"] + * + */ +int zsend_interface_address(int cmd, struct zserv *client, + struct interface *ifp, struct connected *ifc) +{ + int blen; + struct prefix *p; + struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); + + zclient_create_header(s, cmd, ifp->vrf_id); + stream_putl(s, ifp->ifindex); + + /* Interface address flag. */ + stream_putc(s, ifc->flags); + + /* Prefix information. */ + p = ifc->address; + stream_putc(s, p->family); + blen = prefix_blen(p); + stream_put(s, &p->u.prefix, blen); + + /* + * XXX gnu version does not send prefixlen for + * ZEBRA_INTERFACE_ADDRESS_DELETE + * but zebra_interface_address_delete_read() in the gnu version + * expects to find it + */ + stream_putc(s, p->prefixlen); + + /* Destination. */ + p = ifc->destination; + if (p) + stream_put(s, &p->u.prefix, blen); + else + stream_put(s, NULL, blen); + + /* Write packet size. */ + stream_putw_at(s, 0, stream_get_endp(s)); + + client->connected_rt_add_cnt++; + return zebra_server_send_message(client, s); +} + +static int zsend_interface_nbr_address(int cmd, struct zserv *client, + struct interface *ifp, + struct nbr_connected *ifc) +{ + int blen; + struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); + struct prefix *p; + + zclient_create_header(s, cmd, ifp->vrf_id); + stream_putl(s, ifp->ifindex); + + /* Prefix information. */ + p = ifc->address; + stream_putc(s, p->family); + blen = prefix_blen(p); + stream_put(s, &p->u.prefix, blen); + + /* + * XXX gnu version does not send prefixlen for + * ZEBRA_INTERFACE_ADDRESS_DELETE + * but zebra_interface_address_delete_read() in the gnu version + * expects to find it + */ + stream_putc(s, p->prefixlen); + + /* Write packet size. */ + stream_putw_at(s, 0, stream_get_endp(s)); + + return zebra_server_send_message(client, s); +} + +/* Interface address addition. */ +static void zebra_interface_nbr_address_add_update(struct interface *ifp, + struct nbr_connected *ifc) +{ + struct listnode *node, *nnode; + struct zserv *client; + struct prefix *p; + + if (IS_ZEBRA_DEBUG_EVENT) { + char buf[INET6_ADDRSTRLEN]; + + p = ifc->address; + zlog_debug( + "MESSAGE: ZEBRA_INTERFACE_NBR_ADDRESS_ADD %s/%d on %s", + inet_ntop(p->family, &p->u.prefix, buf, + INET6_ADDRSTRLEN), + p->prefixlen, ifc->ifp->name); + } + + for (ALL_LIST_ELEMENTS(zebrad.client_list, node, nnode, client)) + zsend_interface_nbr_address(ZEBRA_INTERFACE_NBR_ADDRESS_ADD, + client, ifp, ifc); +} + +/* Interface address deletion. */ +static void zebra_interface_nbr_address_delete_update(struct interface *ifp, + struct nbr_connected *ifc) +{ + struct listnode *node, *nnode; + struct zserv *client; + struct prefix *p; + + if (IS_ZEBRA_DEBUG_EVENT) { + char buf[INET6_ADDRSTRLEN]; + + p = ifc->address; + zlog_debug( + "MESSAGE: ZEBRA_INTERFACE_NBR_ADDRESS_DELETE %s/%d on %s", + inet_ntop(p->family, &p->u.prefix, buf, + INET6_ADDRSTRLEN), + p->prefixlen, ifc->ifp->name); + } + + for (ALL_LIST_ELEMENTS(zebrad.client_list, node, nnode, client)) + zsend_interface_nbr_address(ZEBRA_INTERFACE_NBR_ADDRESS_DELETE, + client, ifp, ifc); +} + +/* Send addresses on interface to client */ +int zsend_interface_addresses(struct zserv *client, struct interface *ifp) +{ + struct listnode *cnode, *cnnode; + struct connected *c; + struct nbr_connected *nc; + + /* Send interface addresses. */ + for (ALL_LIST_ELEMENTS(ifp->connected, cnode, cnnode, c)) { + if (!CHECK_FLAG(c->conf, ZEBRA_IFC_REAL)) + continue; + + if (zsend_interface_address(ZEBRA_INTERFACE_ADDRESS_ADD, client, + ifp, c) + < 0) + return -1; + } + + /* Send interface neighbors. */ + for (ALL_LIST_ELEMENTS(ifp->nbr_connected, cnode, cnnode, nc)) { + if (zsend_interface_nbr_address(ZEBRA_INTERFACE_NBR_ADDRESS_ADD, + client, ifp, nc) + < 0) + return -1; + } + + return 0; +} + +/* Notify client about interface moving from one VRF to another. + * Whether client is interested in old and new VRF is checked by caller. + */ +int zsend_interface_vrf_update(struct zserv *client, struct interface *ifp, + vrf_id_t vrf_id) +{ + struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); + + zclient_create_header(s, ZEBRA_INTERFACE_VRF_UPDATE, ifp->vrf_id); + + /* Fill in the ifIndex of the interface and its new VRF (id) */ + stream_putl(s, ifp->ifindex); + stream_putl(s, vrf_id); + + /* Write packet size. */ + stream_putw_at(s, 0, stream_get_endp(s)); + + client->if_vrfchg_cnt++; + return zebra_server_send_message(client, s); +} + +/* Add new nbr connected IPv6 address */ +void nbr_connected_add_ipv6(struct interface *ifp, struct in6_addr *address) +{ + struct nbr_connected *ifc; + struct prefix p; + + p.family = AF_INET6; + IPV6_ADDR_COPY(&p.u.prefix, address); + p.prefixlen = IPV6_MAX_PREFIXLEN; + + if (!(ifc = listnode_head(ifp->nbr_connected))) { + /* new addition */ + ifc = nbr_connected_new(); + ifc->address = prefix_new(); + ifc->ifp = ifp; + listnode_add(ifp->nbr_connected, ifc); + } + + prefix_copy(ifc->address, &p); + + zebra_interface_nbr_address_add_update(ifp, ifc); + + if_nbr_ipv6ll_to_ipv4ll_neigh_update(ifp, address, 1); +} + +void nbr_connected_delete_ipv6(struct interface *ifp, struct in6_addr *address) +{ + struct nbr_connected *ifc; + struct prefix p; + + p.family = AF_INET6; + IPV6_ADDR_COPY(&p.u.prefix, address); + p.prefixlen = IPV6_MAX_PREFIXLEN; + + ifc = nbr_connected_check(ifp, &p); + if (!ifc) + return; + + listnode_delete(ifp->nbr_connected, ifc); + + zebra_interface_nbr_address_delete_update(ifp, ifc); + + if_nbr_ipv6ll_to_ipv4ll_neigh_update(ifp, address, 0); + + nbr_connected_free(ifc); +} + +/* + * The cmd passed to zsend_interface_update may be ZEBRA_INTERFACE_UP or + * ZEBRA_INTERFACE_DOWN. + * + * The ZEBRA_INTERFACE_UP message is sent from the zebra server to + * the clients in one of 2 situations: + * - an if_up is detected e.g., as a result of an RTM_IFINFO message + * - a vty command modifying the bandwidth of an interface is received. + * The ZEBRA_INTERFACE_DOWN message is sent when an if_down is detected. + */ +int zsend_interface_update(int cmd, struct zserv *client, struct interface *ifp) +{ + struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); + + zclient_create_header(s, cmd, ifp->vrf_id); + zserv_encode_interface(s, ifp); + + if (cmd == ZEBRA_INTERFACE_UP) + client->ifup_cnt++; + else + client->ifdown_cnt++; + + return zebra_server_send_message(client, s); +} + +int zsend_redistribute_route(int cmd, struct zserv *client, struct prefix *p, + struct prefix *src_p, struct route_entry *re) +{ + struct zapi_route api; + struct zapi_nexthop *api_nh; + struct nexthop *nexthop; + int count = 0; + + memset(&api, 0, sizeof(api)); + api.vrf_id = re->vrf_id; + api.type = re->type; + api.instance = re->instance; + api.flags = re->flags; + + /* Prefix. */ + api.prefix = *p; + if (src_p) { + SET_FLAG(api.message, ZAPI_MESSAGE_SRCPFX); + memcpy(&api.src_prefix, src_p, sizeof(api.src_prefix)); + } + + /* Nexthops. */ + if (re->nexthop_active_num) { + SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP); + api.nexthop_num = re->nexthop_active_num; + } + for (nexthop = re->ng.nexthop; nexthop; nexthop = nexthop->next) { + if (!CHECK_FLAG(nexthop->flags, NEXTHOP_FLAG_ACTIVE)) + continue; + + api_nh = &api.nexthops[count]; + api_nh->vrf_id = nexthop->vrf_id; + api_nh->type = nexthop->type; + switch (nexthop->type) { + case NEXTHOP_TYPE_BLACKHOLE: + api_nh->bh_type = nexthop->bh_type; + break; + case NEXTHOP_TYPE_IPV4: + api_nh->gate.ipv4 = nexthop->gate.ipv4; + break; + case NEXTHOP_TYPE_IPV4_IFINDEX: + api_nh->gate.ipv4 = nexthop->gate.ipv4; + api_nh->ifindex = nexthop->ifindex; + break; + case NEXTHOP_TYPE_IFINDEX: + api_nh->ifindex = nexthop->ifindex; + break; + case NEXTHOP_TYPE_IPV6: + api_nh->gate.ipv6 = nexthop->gate.ipv6; + break; + case NEXTHOP_TYPE_IPV6_IFINDEX: + api_nh->gate.ipv6 = nexthop->gate.ipv6; + api_nh->ifindex = nexthop->ifindex; + } + count++; + } + + /* Attributes. */ + SET_FLAG(api.message, ZAPI_MESSAGE_DISTANCE); + api.distance = re->distance; + SET_FLAG(api.message, ZAPI_MESSAGE_METRIC); + api.metric = re->metric; + if (re->tag) { + SET_FLAG(api.message, ZAPI_MESSAGE_TAG); + api.tag = re->tag; + } + SET_FLAG(api.message, ZAPI_MESSAGE_MTU); + api.mtu = re->mtu; + + struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); + + /* Encode route and send. */ + if (zapi_route_encode(cmd, s, &api) < 0) { + stream_free(s); + return -1; + } + + if (IS_ZEBRA_DEBUG_SEND) { + char buf_prefix[PREFIX_STRLEN]; + prefix2str(&api.prefix, buf_prefix, sizeof(buf_prefix)); + + zlog_debug("%s: %s to client %s: type %s, vrf_id %d, p %s", + __func__, zserv_command_string(cmd), + zebra_route_string(client->proto), + zebra_route_string(api.type), api.vrf_id, + buf_prefix); + } + return zebra_server_send_message(client, s); +} + +/* + * Modified version of zsend_ipv4_nexthop_lookup(): Query unicast rib if + * nexthop is not found on mrib. Returns both route metric and protocol + * distance. + */ +static int zsend_ipv4_nexthop_lookup_mrib(struct zserv *client, + struct in_addr addr, + struct route_entry *re, + struct zebra_vrf *zvrf) +{ + struct stream *s; + unsigned long nump; + uint8_t num; + struct nexthop *nexthop; + + /* Get output stream. */ + s = stream_new(ZEBRA_MAX_PACKET_SIZ); + stream_reset(s); + + /* Fill in result. */ + zclient_create_header(s, ZEBRA_IPV4_NEXTHOP_LOOKUP_MRIB, zvrf_id(zvrf)); + stream_put_in_addr(s, &addr); + + if (re) { + stream_putc(s, re->distance); + stream_putl(s, re->metric); + num = 0; + nump = stream_get_endp( + s); /* remember position for nexthop_num */ + stream_putc(s, 0); /* reserve room for nexthop_num */ + /* Only non-recursive routes are elegible to resolve the nexthop + * we + * are looking up. Therefore, we will just iterate over the top + * chain of nexthops. */ + for (nexthop = re->ng.nexthop; nexthop; nexthop = nexthop->next) + if (CHECK_FLAG(nexthop->flags, NEXTHOP_FLAG_ACTIVE)) + num += zserv_encode_nexthop(s, nexthop); + + stream_putc_at(s, nump, num); /* store nexthop_num */ + } else { + stream_putc(s, 0); /* distance */ + stream_putl(s, 0); /* metric */ + stream_putc(s, 0); /* nexthop_num */ + } + + stream_putw_at(s, 0, stream_get_endp(s)); + + return zebra_server_send_message(client, s); +} + +int zsend_route_notify_owner(struct route_entry *re, struct prefix *p, + enum zapi_route_notify_owner note) +{ + struct zserv *client; + struct stream *s; + uint8_t blen; + + client = zebra_find_client(re->type, re->instance); + if (!client || !client->notify_owner) { + if (IS_ZEBRA_DEBUG_PACKET) { + char buff[PREFIX_STRLEN]; + + zlog_debug( + "Not Notifying Owner: %u about prefix %s(%u) %d vrf: %u", + re->type, prefix2str(p, buff, sizeof(buff)), + re->table, note, re->vrf_id); + } + return 0; + } + + if (IS_ZEBRA_DEBUG_PACKET) { + char buff[PREFIX_STRLEN]; + + zlog_debug("Notifying Owner: %u about prefix %s(%u) %d vrf: %u", + re->type, prefix2str(p, buff, sizeof(buff)), + re->table, note, re->vrf_id); + } + + s = stream_new(ZEBRA_MAX_PACKET_SIZ); + stream_reset(s); + + zclient_create_header(s, ZEBRA_ROUTE_NOTIFY_OWNER, re->vrf_id); + + stream_put(s, ¬e, sizeof(note)); + + stream_putc(s, p->family); + + blen = prefix_blen(p); + stream_putc(s, p->prefixlen); + stream_put(s, &p->u.prefix, blen); + + stream_putl(s, re->table); + + stream_putw_at(s, 0, stream_get_endp(s)); + + return zebra_server_send_message(client, s); +} + +void zsend_rule_notify_owner(struct zebra_pbr_rule *rule, + enum zapi_rule_notify_owner note) +{ + struct listnode *node; + struct zserv *client; + struct stream *s; + + if (IS_ZEBRA_DEBUG_PACKET) + zlog_debug("%s: Notifying %u", __PRETTY_FUNCTION__, + rule->rule.unique); + + for (ALL_LIST_ELEMENTS_RO(zebrad.client_list, node, client)) { + if (rule->sock == client->sock) + break; + } + + if (!client) + return; + + s = stream_new(ZEBRA_MAX_PACKET_SIZ); + + zclient_create_header(s, ZEBRA_RULE_NOTIFY_OWNER, VRF_DEFAULT); + stream_put(s, ¬e, sizeof(note)); + stream_putl(s, rule->rule.seq); + stream_putl(s, rule->rule.priority); + stream_putl(s, rule->rule.unique); + if (rule->ifp) + stream_putl(s, rule->ifp->ifindex); + else + stream_putl(s, 0); + + stream_putw_at(s, 0, stream_get_endp(s)); + + zebra_server_send_message(client, s); +} + +void zsend_ipset_notify_owner(struct zebra_pbr_ipset *ipset, + enum zapi_ipset_notify_owner note) +{ + struct listnode *node; + struct zserv *client; + struct stream *s; + + if (IS_ZEBRA_DEBUG_PACKET) + zlog_debug("%s: Notifying %u", __PRETTY_FUNCTION__, + ipset->unique); + + for (ALL_LIST_ELEMENTS_RO(zebrad.client_list, node, client)) { + if (ipset->sock == client->sock) + break; + } + + if (!client) + return; + + s = stream_new(ZEBRA_MAX_PACKET_SIZ); + + zclient_create_header(s, ZEBRA_IPSET_NOTIFY_OWNER, VRF_DEFAULT); + stream_put(s, ¬e, sizeof(note)); + stream_putl(s, ipset->unique); + stream_put(s, ipset->ipset_name, ZEBRA_IPSET_NAME_SIZE); + stream_putw_at(s, 0, stream_get_endp(s)); + + zebra_server_send_message(client, s); +} + +void zsend_ipset_entry_notify_owner(struct zebra_pbr_ipset_entry *ipset, + enum zapi_ipset_entry_notify_owner note) +{ + struct listnode *node; + struct zserv *client; + struct stream *s; + + if (IS_ZEBRA_DEBUG_PACKET) + zlog_debug("%s: Notifying %u", __PRETTY_FUNCTION__, + ipset->unique); + + for (ALL_LIST_ELEMENTS_RO(zebrad.client_list, node, client)) { + if (ipset->sock == client->sock) + break; + } + + if (!client) + return; + + s = stream_new(ZEBRA_MAX_PACKET_SIZ); + + zclient_create_header(s, ZEBRA_IPSET_ENTRY_NOTIFY_OWNER, VRF_DEFAULT); + stream_put(s, ¬e, sizeof(note)); + stream_putl(s, ipset->unique); + stream_put(s, ipset->backpointer->ipset_name, ZEBRA_IPSET_NAME_SIZE); + stream_putw_at(s, 0, stream_get_endp(s)); + + zebra_server_send_message(client, s); +} + +void zsend_iptable_notify_owner(struct zebra_pbr_iptable *iptable, + enum zapi_iptable_notify_owner note) +{ + struct listnode *node; + struct zserv *client; + struct stream *s; + + if (IS_ZEBRA_DEBUG_PACKET) + zlog_debug("%s: Notifying %u", __PRETTY_FUNCTION__, + iptable->unique); + + for (ALL_LIST_ELEMENTS_RO(zebrad.client_list, node, client)) { + if (iptable->sock == client->sock) + break; + } + + if (!client) + return; + + s = stream_new(ZEBRA_MAX_PACKET_SIZ); + + zclient_create_header(s, ZEBRA_IPTABLE_NOTIFY_OWNER, VRF_DEFAULT); + stream_put(s, ¬e, sizeof(note)); + stream_putl(s, iptable->unique); + stream_putw_at(s, 0, stream_get_endp(s)); + + zebra_server_send_message(client, s); +} + +/* Router-id is updated. Send ZEBRA_ROUTER_ID_ADD to client. */ +int zsend_router_id_update(struct zserv *client, struct prefix *p, + vrf_id_t vrf_id) +{ + int blen; + + /* Check this client need interface information. */ + if (!vrf_bitmap_check(client->ridinfo, vrf_id)) + return 0; + + struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); + + /* Message type. */ + zclient_create_header(s, ZEBRA_ROUTER_ID_UPDATE, vrf_id); + + /* Prefix information. */ + stream_putc(s, p->family); + blen = prefix_blen(p); + stream_put(s, &p->u.prefix, blen); + stream_putc(s, p->prefixlen); + + /* Write packet size. */ + stream_putw_at(s, 0, stream_get_endp(s)); + + return zebra_server_send_message(client, s); +} + +/* + * Function used by Zebra to send a PW status update to LDP daemon + */ +int zsend_pw_update(struct zserv *client, struct zebra_pw *pw) +{ + struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); + + zclient_create_header(s, ZEBRA_PW_STATUS_UPDATE, pw->vrf_id); + stream_write(s, pw->ifname, IF_NAMESIZE); + stream_putl(s, pw->ifindex); + stream_putl(s, pw->status); + + /* Put length at the first point of the stream. */ + stream_putw_at(s, 0, stream_get_endp(s)); + + return zebra_server_send_message(client, s); +} + +/* Send response to a get label chunk request to client */ +static int zsend_assign_label_chunk_response(struct zserv *client, + vrf_id_t vrf_id, + struct label_manager_chunk *lmc) +{ + int ret; + struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); + + zclient_create_header(s, ZEBRA_GET_LABEL_CHUNK, vrf_id); + + if (lmc) { + /* keep */ + stream_putc(s, lmc->keep); + /* start and end labels */ + stream_putl(s, lmc->start); + stream_putl(s, lmc->end); + } + + /* Write packet size. */ + stream_putw_at(s, 0, stream_get_endp(s)); + + ret = writen(client->sock, s->data, stream_get_endp(s)); + stream_free(s); + return ret; +} + +/* Send response to a label manager connect request to client */ +static int zsend_label_manager_connect_response(struct zserv *client, + vrf_id_t vrf_id, + unsigned short result) +{ + int ret; + struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); + + zclient_create_header(s, ZEBRA_LABEL_MANAGER_CONNECT, vrf_id); + + /* result */ + stream_putc(s, result); + + /* Write packet size. */ + stream_putw_at(s, 0, stream_get_endp(s)); + + ret = writen(client->sock, s->data, stream_get_endp(s)); + stream_free(s); + + return ret; +} + +/* Send response to a get table chunk request to client */ +static int zsend_assign_table_chunk_response(struct zserv *client, + vrf_id_t vrf_id, + struct table_manager_chunk *tmc) +{ + struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); + + zclient_create_header(s, ZEBRA_GET_TABLE_CHUNK, vrf_id); + + if (tmc) { + /* start and end labels */ + stream_putl(s, tmc->start); + stream_putl(s, tmc->end); + } + + /* Write packet size. */ + stream_putw_at(s, 0, stream_get_endp(s)); + + return zebra_server_send_message(client, s); +} + +static int zsend_table_manager_connect_response(struct zserv *client, + vrf_id_t vrf_id, + uint16_t result) +{ + struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); + + zclient_create_header(s, ZEBRA_TABLE_MANAGER_CONNECT, vrf_id); + + /* result */ + stream_putc(s, result); + + stream_putw_at(s, 0, stream_get_endp(s)); + + return zebra_server_send_message(client, s); +} + +/* Inbound message handling ------------------------------------------------ */ + +int cmd2type[] = { + [ZEBRA_NEXTHOP_REGISTER] = RNH_NEXTHOP_TYPE, + [ZEBRA_NEXTHOP_UNREGISTER] = RNH_NEXTHOP_TYPE, + [ZEBRA_IMPORT_ROUTE_REGISTER] = RNH_IMPORT_CHECK_TYPE, + [ZEBRA_IMPORT_ROUTE_UNREGISTER] = RNH_IMPORT_CHECK_TYPE, +}; + +/* Nexthop register */ +static void zread_rnh_register(ZAPI_HANDLER_ARGS) +{ + struct rnh *rnh; + struct stream *s; + struct prefix p; + unsigned short l = 0; + uint8_t flags = 0; + uint16_t type = cmd2type[hdr->command]; + + if (IS_ZEBRA_DEBUG_NHT) + zlog_debug( + "rnh_register msg from client %s: hdr->length=%d, type=%s vrf=%u\n", + zebra_route_string(client->proto), hdr->length, + (type == RNH_NEXTHOP_TYPE) ? "nexthop" : "route", + zvrf->vrf->vrf_id); + + s = msg; + + client->nh_reg_time = monotime(NULL); + + while (l < hdr->length) { + STREAM_GETC(s, flags); + STREAM_GETW(s, p.family); + STREAM_GETC(s, p.prefixlen); + l += 4; + if (p.family == AF_INET) { + if (p.prefixlen > IPV4_MAX_BITLEN) { + zlog_warn( + "%s: Specified prefix hdr->length %d is too large for a v4 address", + __PRETTY_FUNCTION__, p.prefixlen); + return; + } + STREAM_GET(&p.u.prefix4.s_addr, s, IPV4_MAX_BYTELEN); + l += IPV4_MAX_BYTELEN; + } else if (p.family == AF_INET6) { + if (p.prefixlen > IPV6_MAX_BITLEN) { + zlog_warn( + "%s: Specified prefix hdr->length %d is to large for a v6 address", + __PRETTY_FUNCTION__, p.prefixlen); + return; + } + STREAM_GET(&p.u.prefix6, s, IPV6_MAX_BYTELEN); + l += IPV6_MAX_BYTELEN; + } else { + zlog_err( + "rnh_register: Received unknown family type %d\n", + p.family); + return; + } + rnh = zebra_add_rnh(&p, zvrf_id(zvrf), type); + if (type == RNH_NEXTHOP_TYPE) { + if (flags + && !CHECK_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED)) + SET_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED); + else if (!flags + && CHECK_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED)) + UNSET_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED); + } else if (type == RNH_IMPORT_CHECK_TYPE) { + if (flags + && !CHECK_FLAG(rnh->flags, ZEBRA_NHT_EXACT_MATCH)) + SET_FLAG(rnh->flags, ZEBRA_NHT_EXACT_MATCH); + else if (!flags + && CHECK_FLAG(rnh->flags, + ZEBRA_NHT_EXACT_MATCH)) + UNSET_FLAG(rnh->flags, ZEBRA_NHT_EXACT_MATCH); + } + + zebra_add_rnh_client(rnh, client, type, zvrf_id(zvrf)); + /* Anything not AF_INET/INET6 has been filtered out above */ + zebra_evaluate_rnh(zvrf_id(zvrf), p.family, 1, type, &p); + } + +stream_failure: + return; +} + +/* Nexthop register */ +static void zread_rnh_unregister(ZAPI_HANDLER_ARGS) +{ + struct rnh *rnh; + struct stream *s; + struct prefix p; + unsigned short l = 0; + uint16_t type = cmd2type[hdr->command]; + + if (IS_ZEBRA_DEBUG_NHT) + zlog_debug( + "rnh_unregister msg from client %s: hdr->length=%d vrf: %u\n", + zebra_route_string(client->proto), hdr->length, + zvrf->vrf->vrf_id); + + s = msg; + + while (l < hdr->length) { + uint8_t flags; + + STREAM_GETC(s, flags); + if (flags != 0) + goto stream_failure; + + STREAM_GETW(s, p.family); + STREAM_GETC(s, p.prefixlen); + l += 4; + if (p.family == AF_INET) { + if (p.prefixlen > IPV4_MAX_BITLEN) { + zlog_warn( + "%s: Specified prefix hdr->length %d is to large for a v4 address", + __PRETTY_FUNCTION__, p.prefixlen); + return; + } + STREAM_GET(&p.u.prefix4.s_addr, s, IPV4_MAX_BYTELEN); + l += IPV4_MAX_BYTELEN; + } else if (p.family == AF_INET6) { + if (p.prefixlen > IPV6_MAX_BITLEN) { + zlog_warn( + "%s: Specified prefix hdr->length %d is to large for a v6 address", + __PRETTY_FUNCTION__, p.prefixlen); + return; + } + STREAM_GET(&p.u.prefix6, s, IPV6_MAX_BYTELEN); + l += IPV6_MAX_BYTELEN; + } else { + zlog_err( + "rnh_register: Received unknown family type %d\n", + p.family); + return; + } + rnh = zebra_lookup_rnh(&p, zvrf_id(zvrf), type); + if (rnh) { + client->nh_dereg_time = monotime(NULL); + zebra_remove_rnh_client(rnh, client, type); + } + } +stream_failure: + return; +} + +#define ZEBRA_MIN_FEC_LENGTH 5 + +/* FEC register */ +static void zread_fec_register(ZAPI_HANDLER_ARGS) +{ + struct stream *s; + unsigned short l = 0; + struct prefix p; + uint16_t flags; + uint32_t label_index = MPLS_INVALID_LABEL_INDEX; + + s = msg; + zvrf = vrf_info_lookup(VRF_DEFAULT); + if (!zvrf) + return; // unexpected + + /* + * The minimum amount of data that can be sent for one fec + * registration + */ + if (hdr->length < ZEBRA_MIN_FEC_LENGTH) { + zlog_err( + "fec_register: Received a fec register of hdr->length %d, it is of insufficient size to properly decode", + hdr->length); + return; + } + + while (l < hdr->length) { + STREAM_GETW(s, flags); + memset(&p, 0, sizeof(p)); + STREAM_GETW(s, p.family); + if (p.family != AF_INET && p.family != AF_INET6) { + zlog_err( + "fec_register: Received unknown family type %d\n", + p.family); + return; + } + STREAM_GETC(s, p.prefixlen); + if ((p.family == AF_INET && p.prefixlen > IPV4_MAX_BITLEN) + || (p.family == AF_INET6 + && p.prefixlen > IPV6_MAX_BITLEN)) { + zlog_warn( + "%s: Specified prefix hdr->length: %d is to long for %d", + __PRETTY_FUNCTION__, p.prefixlen, p.family); + return; + } + l += 5; + STREAM_GET(&p.u.prefix, s, PSIZE(p.prefixlen)); + l += PSIZE(p.prefixlen); + if (flags & ZEBRA_FEC_REGISTER_LABEL_INDEX) { + STREAM_GETL(s, label_index); + l += 4; + } else + label_index = MPLS_INVALID_LABEL_INDEX; + zebra_mpls_fec_register(zvrf, &p, label_index, client); + } + +stream_failure: + return; +} + +/* FEC unregister */ +static void zread_fec_unregister(ZAPI_HANDLER_ARGS) +{ + struct stream *s; + unsigned short l = 0; + struct prefix p; + uint16_t flags; + + s = msg; + zvrf = vrf_info_lookup(VRF_DEFAULT); + if (!zvrf) + return; // unexpected + + /* + * The minimum amount of data that can be sent for one + * fec unregistration + */ + if (hdr->length < ZEBRA_MIN_FEC_LENGTH) { + zlog_err( + "fec_unregister: Received a fec unregister of hdr->length %d, it is of insufficient size to properly decode", + hdr->length); + return; + } + + while (l < hdr->length) { + STREAM_GETW(s, flags); + if (flags != 0) + goto stream_failure; + + memset(&p, 0, sizeof(p)); + STREAM_GETW(s, p.family); + if (p.family != AF_INET && p.family != AF_INET6) { + zlog_err( + "fec_unregister: Received unknown family type %d\n", + p.family); + return; + } + STREAM_GETC(s, p.prefixlen); + if ((p.family == AF_INET && p.prefixlen > IPV4_MAX_BITLEN) + || (p.family == AF_INET6 + && p.prefixlen > IPV6_MAX_BITLEN)) { + zlog_warn( + "%s: Received prefix hdr->length %d which is greater than %d can support", + __PRETTY_FUNCTION__, p.prefixlen, p.family); + return; + } + l += 5; + STREAM_GET(&p.u.prefix, s, PSIZE(p.prefixlen)); + l += PSIZE(p.prefixlen); + zebra_mpls_fec_unregister(zvrf, &p, client); + } + +stream_failure: + return; +} + + +/* + * Register zebra server interface information. + * Send current all interface and address information. + */ +static void zread_interface_add(ZAPI_HANDLER_ARGS) +{ + struct vrf *vrf; + struct interface *ifp; + + /* Interface information is needed. */ + vrf_bitmap_set(client->ifinfo, zvrf_id(zvrf)); + + RB_FOREACH (vrf, vrf_id_head, &vrfs_by_id) { + FOR_ALL_INTERFACES (vrf, ifp) { + /* Skip pseudo interface. */ + if (!CHECK_FLAG(ifp->status, ZEBRA_INTERFACE_ACTIVE)) + continue; + + zsend_interface_add(client, ifp); + zsend_interface_addresses(client, ifp); + } + } +} + +/* Unregister zebra server interface information. */ +static void zread_interface_delete(ZAPI_HANDLER_ARGS) +{ + vrf_bitmap_unset(client->ifinfo, zvrf_id(zvrf)); +} + +void zserv_nexthop_num_warn(const char *caller, const struct prefix *p, + const unsigned int nexthop_num) +{ + if (nexthop_num > multipath_num) { + char buff[PREFIX2STR_BUFFER]; + prefix2str(p, buff, sizeof(buff)); + zlog_warn( + "%s: Prefix %s has %d nexthops, but we can only use the first %d", + caller, buff, nexthop_num, multipath_num); + } +} + +static void zread_route_add(ZAPI_HANDLER_ARGS) +{ + struct stream *s; + struct zapi_route api; + struct zapi_nexthop *api_nh; + afi_t afi; + struct prefix_ipv6 *src_p = NULL; + struct route_entry *re; + struct nexthop *nexthop = NULL; + int i, ret; + vrf_id_t vrf_id = 0; + struct ipaddr vtep_ip; + + s = msg; + if (zapi_route_decode(s, &api) < 0) { + if (IS_ZEBRA_DEBUG_RECV) + zlog_debug("%s: Unable to decode zapi_route sent", + __PRETTY_FUNCTION__); + return; + } + + if (IS_ZEBRA_DEBUG_RECV) { + char buf_prefix[PREFIX_STRLEN]; + prefix2str(&api.prefix, buf_prefix, sizeof(buf_prefix)); + zlog_debug("%s: p=%s, ZAPI_MESSAGE_LABEL: %sset, flags=0x%x", + __func__, buf_prefix, + (CHECK_FLAG(api.message, ZAPI_MESSAGE_LABEL) ? "" + : "un"), + api.flags); + } + + /* Allocate new route. */ + vrf_id = zvrf_id(zvrf); + re = XCALLOC(MTYPE_RE, sizeof(struct route_entry)); + re->type = api.type; + re->instance = api.instance; + re->flags = api.flags; + re->uptime = time(NULL); + re->vrf_id = vrf_id; + if (api.tableid && vrf_id == VRF_DEFAULT) + re->table = api.tableid; + else + re->table = zvrf->table_id; + + /* + * TBD should _all_ of the nexthop add operations use + * api_nh->vrf_id instead of re->vrf_id ? I only changed + * for cases NEXTHOP_TYPE_IPV4 and NEXTHOP_TYPE_IPV6. + */ + if (CHECK_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP)) { + for (i = 0; i < api.nexthop_num; i++) { + api_nh = &api.nexthops[i]; + ifindex_t ifindex = 0; + + if (IS_ZEBRA_DEBUG_RECV) { + zlog_debug("nh type %d", api_nh->type); + } + + switch (api_nh->type) { + case NEXTHOP_TYPE_IFINDEX: + nexthop = route_entry_nexthop_ifindex_add( + re, api_nh->ifindex, api_nh->vrf_id); + break; + case NEXTHOP_TYPE_IPV4: + if (IS_ZEBRA_DEBUG_RECV) { + char nhbuf[INET6_ADDRSTRLEN] = {0}; + inet_ntop(AF_INET, &api_nh->gate.ipv4, + nhbuf, INET6_ADDRSTRLEN); + zlog_debug("%s: nh=%s, vrf_id=%d", + __func__, nhbuf, + api_nh->vrf_id); + } + nexthop = route_entry_nexthop_ipv4_add( + re, &api_nh->gate.ipv4, NULL, + api_nh->vrf_id); + break; + case NEXTHOP_TYPE_IPV4_IFINDEX: + + memset(&vtep_ip, 0, sizeof(struct ipaddr)); + if (CHECK_FLAG(api.flags, + ZEBRA_FLAG_EVPN_ROUTE)) { + ifindex = get_l3vni_svi_ifindex(vrf_id); + } else { + ifindex = api_nh->ifindex; + } + + if (IS_ZEBRA_DEBUG_RECV) { + char nhbuf[INET6_ADDRSTRLEN] = {0}; + inet_ntop(AF_INET, &api_nh->gate.ipv4, + nhbuf, INET6_ADDRSTRLEN); + zlog_debug( + "%s: nh=%s, vrf_id=%d (re->vrf_id=%d), ifindex=%d", + __func__, nhbuf, api_nh->vrf_id, + re->vrf_id, ifindex); + } + nexthop = route_entry_nexthop_ipv4_ifindex_add( + re, &api_nh->gate.ipv4, NULL, ifindex, + api_nh->vrf_id); + + /* if this an EVPN route entry, + * program the nh as neigh + */ + if (CHECK_FLAG(api.flags, + ZEBRA_FLAG_EVPN_ROUTE)) { + SET_FLAG(nexthop->flags, + NEXTHOP_FLAG_EVPN_RVTEP); + vtep_ip.ipa_type = IPADDR_V4; + memcpy(&(vtep_ip.ipaddr_v4), + &(api_nh->gate.ipv4), + sizeof(struct in_addr)); + zebra_vxlan_evpn_vrf_route_add( + vrf_id, &api.rmac, &vtep_ip, + &api.prefix); + } + break; + case NEXTHOP_TYPE_IPV6: + nexthop = route_entry_nexthop_ipv6_add( + re, &api_nh->gate.ipv6, api_nh->vrf_id); + break; + case NEXTHOP_TYPE_IPV6_IFINDEX: + memset(&vtep_ip, 0, sizeof(struct ipaddr)); + if (CHECK_FLAG(api.flags, + ZEBRA_FLAG_EVPN_ROUTE)) { + ifindex = get_l3vni_svi_ifindex(vrf_id); + } else { + ifindex = api_nh->ifindex; + } + + nexthop = route_entry_nexthop_ipv6_ifindex_add( + re, &api_nh->gate.ipv6, ifindex, + api_nh->vrf_id); + + /* if this an EVPN route entry, + * program the nh as neigh + */ + if (CHECK_FLAG(api.flags, + ZEBRA_FLAG_EVPN_ROUTE)) { + SET_FLAG(nexthop->flags, + NEXTHOP_FLAG_EVPN_RVTEP); + vtep_ip.ipa_type = IPADDR_V6; + memcpy(&vtep_ip.ipaddr_v6, + &(api_nh->gate.ipv6), + sizeof(struct in6_addr)); + zebra_vxlan_evpn_vrf_route_add( + vrf_id, &api.rmac, &vtep_ip, + &api.prefix); + } + break; + case NEXTHOP_TYPE_BLACKHOLE: + nexthop = route_entry_nexthop_blackhole_add( + re, api_nh->bh_type); + break; + } + + if (!nexthop) { + zlog_warn( + "%s: Nexthops Specified: %d but we failed to properly create one", + __PRETTY_FUNCTION__, api.nexthop_num); + nexthops_free(re->ng.nexthop); + XFREE(MTYPE_RE, re); + return; + } + /* MPLS labels for BGP-LU or Segment Routing */ + if (CHECK_FLAG(api.message, ZAPI_MESSAGE_LABEL) + && api_nh->type != NEXTHOP_TYPE_IFINDEX + && api_nh->type != NEXTHOP_TYPE_BLACKHOLE) { + enum lsp_types_t label_type; + + label_type = + lsp_type_from_re_type(client->proto); + + if (IS_ZEBRA_DEBUG_RECV) { + zlog_debug( + "%s: adding %d labels of type %d (1st=%u)", + __func__, api_nh->label_num, + label_type, api_nh->labels[0]); + } + + nexthop_add_labels(nexthop, label_type, + api_nh->label_num, + &api_nh->labels[0]); + } + } + } + + if (CHECK_FLAG(api.message, ZAPI_MESSAGE_DISTANCE)) + re->distance = api.distance; + if (CHECK_FLAG(api.message, ZAPI_MESSAGE_METRIC)) + re->metric = api.metric; + if (CHECK_FLAG(api.message, ZAPI_MESSAGE_TAG)) + re->tag = api.tag; + if (CHECK_FLAG(api.message, ZAPI_MESSAGE_MTU)) + re->mtu = api.mtu; + + afi = family2afi(api.prefix.family); + if (afi != AFI_IP6 && CHECK_FLAG(api.message, ZAPI_MESSAGE_SRCPFX)) { + zlog_warn("%s: Received SRC Prefix but afi is not v6", + __PRETTY_FUNCTION__); + nexthops_free(re->ng.nexthop); + XFREE(MTYPE_RE, re); + return; + } + if (CHECK_FLAG(api.message, ZAPI_MESSAGE_SRCPFX)) + src_p = &api.src_prefix; + + ret = rib_add_multipath(afi, api.safi, &api.prefix, src_p, re); + + /* Stats */ + switch (api.prefix.family) { + case AF_INET: + if (ret > 0) + client->v4_route_add_cnt++; + else if (ret < 0) + client->v4_route_upd8_cnt++; + break; + case AF_INET6: + if (ret > 0) + client->v6_route_add_cnt++; + else if (ret < 0) + client->v6_route_upd8_cnt++; + break; + } +} + +static void zread_route_del(ZAPI_HANDLER_ARGS) +{ + struct stream *s; + struct zapi_route api; + afi_t afi; + struct prefix_ipv6 *src_p = NULL; + uint32_t table_id; + + s = msg; + if (zapi_route_decode(s, &api) < 0) + return; + + afi = family2afi(api.prefix.family); + if (afi != AFI_IP6 && CHECK_FLAG(api.message, ZAPI_MESSAGE_SRCPFX)) { + zlog_warn("%s: Received a src prefix while afi is not v6", + __PRETTY_FUNCTION__); + return; + } + if (CHECK_FLAG(api.message, ZAPI_MESSAGE_SRCPFX)) + src_p = &api.src_prefix; + + if (api.vrf_id == VRF_DEFAULT && api.tableid != 0) + table_id = api.tableid; + else + table_id = zvrf->table_id; + + rib_delete(afi, api.safi, zvrf_id(zvrf), api.type, api.instance, + api.flags, &api.prefix, src_p, NULL, table_id, api.metric, + false, &api.rmac); + + /* Stats */ + switch (api.prefix.family) { + case AF_INET: + client->v4_route_del_cnt++; + break; + case AF_INET6: + client->v6_route_del_cnt++; + break; + } +} + +/* This function support multiple nexthop. */ +/* + * Parse the ZEBRA_IPV4_ROUTE_ADD sent from client. Update re and + * add kernel route. + */ +static void zread_ipv4_add(ZAPI_HANDLER_ARGS) +{ + int i; + struct route_entry *re; + struct prefix p; + uint8_t message; + struct in_addr nhop_addr; + uint8_t nexthop_num; + uint8_t nexthop_type; + struct stream *s; + ifindex_t ifindex; + safi_t safi; + int ret; + enum lsp_types_t label_type = ZEBRA_LSP_NONE; + mpls_label_t label; + struct nexthop *nexthop; + enum blackhole_type bh_type = BLACKHOLE_NULL; + + /* Get input stream. */ + s = msg; + + /* Allocate new re. */ + re = XCALLOC(MTYPE_RE, sizeof(struct route_entry)); + + /* Type, flags, message. */ + STREAM_GETC(s, re->type); + if (re->type > ZEBRA_ROUTE_MAX) { + zlog_warn("%s: Specified route type %d is not a legal value\n", + __PRETTY_FUNCTION__, re->type); + XFREE(MTYPE_RE, re); + return; + } + STREAM_GETW(s, re->instance); + STREAM_GETL(s, re->flags); + STREAM_GETC(s, message); + STREAM_GETW(s, safi); + re->uptime = time(NULL); + + /* IPv4 prefix. */ + memset(&p, 0, sizeof(struct prefix_ipv4)); + p.family = AF_INET; + STREAM_GETC(s, p.prefixlen); + if (p.prefixlen > IPV4_MAX_BITLEN) { + zlog_warn( + "%s: Specified prefix length %d is greater than what v4 can be", + __PRETTY_FUNCTION__, p.prefixlen); + XFREE(MTYPE_RE, re); + return; + } + STREAM_GET(&p.u.prefix4, s, PSIZE(p.prefixlen)); + + /* VRF ID */ + re->vrf_id = zvrf_id(zvrf); + + /* Nexthop parse. */ + if (CHECK_FLAG(message, ZAPI_MESSAGE_NEXTHOP)) { + STREAM_GETC(s, nexthop_num); + zserv_nexthop_num_warn(__func__, (const struct prefix *)&p, + nexthop_num); + + if (CHECK_FLAG(message, ZAPI_MESSAGE_LABEL)) + label_type = lsp_type_from_re_type(client->proto); + + for (i = 0; i < nexthop_num; i++) { + STREAM_GETC(s, nexthop_type); + + switch (nexthop_type) { + case NEXTHOP_TYPE_IFINDEX: + STREAM_GETL(s, ifindex); + route_entry_nexthop_ifindex_add(re, ifindex, + re->vrf_id); + break; + case NEXTHOP_TYPE_IPV4: + STREAM_GET(&nhop_addr.s_addr, s, + IPV4_MAX_BYTELEN); + nexthop = route_entry_nexthop_ipv4_add( + re, &nhop_addr, NULL, re->vrf_id); + /* For labeled-unicast, each nexthop is followed + * by label. */ + if (CHECK_FLAG(message, ZAPI_MESSAGE_LABEL)) { + STREAM_GETL(s, label); + nexthop_add_labels(nexthop, label_type, + 1, &label); + } + break; + case NEXTHOP_TYPE_IPV4_IFINDEX: + STREAM_GET(&nhop_addr.s_addr, s, + IPV4_MAX_BYTELEN); + STREAM_GETL(s, ifindex); + route_entry_nexthop_ipv4_ifindex_add( + re, &nhop_addr, NULL, ifindex, + re->vrf_id); + break; + case NEXTHOP_TYPE_IPV6: + zlog_warn( + "%s: Please use ZEBRA_ROUTE_ADD if you want to pass v6 nexthops", + __PRETTY_FUNCTION__); + nexthops_free(re->ng.nexthop); + XFREE(MTYPE_RE, re); + return; + break; + case NEXTHOP_TYPE_BLACKHOLE: + route_entry_nexthop_blackhole_add(re, bh_type); + break; + default: + zlog_warn( + "%s: Specified nexthop type: %d does not exist", + __PRETTY_FUNCTION__, nexthop_type); + nexthops_free(re->ng.nexthop); + XFREE(MTYPE_RE, re); + return; + } + } + } + + /* Distance. */ + if (CHECK_FLAG(message, ZAPI_MESSAGE_DISTANCE)) + STREAM_GETC(s, re->distance); + + /* Metric. */ + if (CHECK_FLAG(message, ZAPI_MESSAGE_METRIC)) + STREAM_GETL(s, re->metric); + + /* Tag */ + if (CHECK_FLAG(message, ZAPI_MESSAGE_TAG)) + STREAM_GETL(s, re->tag); + else + re->tag = 0; + + if (CHECK_FLAG(message, ZAPI_MESSAGE_MTU)) + STREAM_GETL(s, re->mtu); + else + re->mtu = 0; + + /* Table */ + re->table = zvrf->table_id; + + ret = rib_add_multipath(AFI_IP, safi, &p, NULL, re); + + /* Stats */ + if (ret > 0) + client->v4_route_add_cnt++; + else if (ret < 0) + client->v4_route_upd8_cnt++; + + return; + +stream_failure: + nexthops_free(re->ng.nexthop); + XFREE(MTYPE_RE, re); +} + +/* Zebra server IPv4 prefix delete function. */ +static void zread_ipv4_delete(ZAPI_HANDLER_ARGS) +{ + struct stream *s; + struct zapi_ipv4 api; + struct prefix p; + uint32_t table_id; + + s = msg; + + /* Type, flags, message. */ + STREAM_GETC(s, api.type); + STREAM_GETW(s, api.instance); + STREAM_GETL(s, api.flags); + STREAM_GETC(s, api.message); + STREAM_GETW(s, api.safi); + + /* IPv4 prefix. */ + memset(&p, 0, sizeof(struct prefix)); + p.family = AF_INET; + STREAM_GETC(s, p.prefixlen); + if (p.prefixlen > IPV4_MAX_BITLEN) { + zlog_warn("%s: Passed in prefixlen %d is impossible", + __PRETTY_FUNCTION__, p.prefixlen); + return; + } + STREAM_GET(&p.u.prefix4, s, PSIZE(p.prefixlen)); + + table_id = zvrf->table_id; + + rib_delete(AFI_IP, api.safi, zvrf_id(zvrf), api.type, api.instance, + api.flags, &p, NULL, NULL, table_id, 0, false, NULL); + client->v4_route_del_cnt++; + +stream_failure: + return; +} + +/* MRIB Nexthop lookup for IPv4. */ +static void zread_ipv4_nexthop_lookup_mrib(ZAPI_HANDLER_ARGS) +{ + struct in_addr addr; + struct route_entry *re; + + STREAM_GET(&addr.s_addr, msg, IPV4_MAX_BYTELEN); + re = rib_match_ipv4_multicast(zvrf_id(zvrf), addr, NULL); + zsend_ipv4_nexthop_lookup_mrib(client, addr, re, zvrf); + +stream_failure: + return; +} + +/* Zebra server IPv6 prefix add function. */ +static void zread_ipv4_route_ipv6_nexthop_add(ZAPI_HANDLER_ARGS) +{ + unsigned int i; + struct stream *s; + struct in6_addr nhop_addr; + struct route_entry *re; + uint8_t message; + uint8_t nexthop_num; + uint8_t nexthop_type; + struct prefix p; + safi_t safi; + static struct in6_addr nexthops[MULTIPATH_NUM]; + static unsigned int ifindices[MULTIPATH_NUM]; + int ret; + static mpls_label_t labels[MULTIPATH_NUM]; + enum lsp_types_t label_type = ZEBRA_LSP_NONE; + mpls_label_t label; + struct nexthop *nexthop; + enum blackhole_type bh_type = BLACKHOLE_NULL; + + /* Get input stream. */ + s = msg; + + memset(&nhop_addr, 0, sizeof(struct in6_addr)); + + /* Allocate new re. */ + re = XCALLOC(MTYPE_RE, sizeof(struct route_entry)); + + /* Type, flags, message. */ + STREAM_GETC(s, re->type); + if (re->type > ZEBRA_ROUTE_MAX) { + zlog_warn("%s: Specified route type: %d is not a legal value\n", + __PRETTY_FUNCTION__, re->type); + XFREE(MTYPE_RE, re); + return; + } + STREAM_GETW(s, re->instance); + STREAM_GETL(s, re->flags); + STREAM_GETC(s, message); + STREAM_GETW(s, safi); + re->uptime = time(NULL); + + /* IPv4 prefix. */ + memset(&p, 0, sizeof(struct prefix_ipv4)); + p.family = AF_INET; + STREAM_GETC(s, p.prefixlen); + if (p.prefixlen > IPV4_MAX_BITLEN) { + zlog_warn( + "%s: Prefix Length %d is greater than what a v4 address can use", + __PRETTY_FUNCTION__, p.prefixlen); + XFREE(MTYPE_RE, re); + return; + } + STREAM_GET(&p.u.prefix4, s, PSIZE(p.prefixlen)); + + /* VRF ID */ + re->vrf_id = zvrf_id(zvrf); + + /* We need to give nh-addr, nh-ifindex with the same next-hop object + * to the re to ensure that IPv6 multipathing works; need to coalesce + * these. Clients should send the same number of paired set of + * next-hop-addr/next-hop-ifindices. */ + if (CHECK_FLAG(message, ZAPI_MESSAGE_NEXTHOP)) { + unsigned int nh_count = 0; + unsigned int if_count = 0; + unsigned int max_nh_if = 0; + + STREAM_GETC(s, nexthop_num); + zserv_nexthop_num_warn(__func__, (const struct prefix *)&p, + nexthop_num); + + if (CHECK_FLAG(message, ZAPI_MESSAGE_LABEL)) + label_type = lsp_type_from_re_type(client->proto); + + for (i = 0; i < nexthop_num; i++) { + STREAM_GETC(s, nexthop_type); + + switch (nexthop_type) { + case NEXTHOP_TYPE_IPV6: + STREAM_GET(&nhop_addr, s, 16); + if (nh_count < MULTIPATH_NUM) { + /* For labeled-unicast, each nexthop is + * followed by label. */ + if (CHECK_FLAG(message, + ZAPI_MESSAGE_LABEL)) { + STREAM_GETL(s, label); + labels[nh_count] = label; + } + nexthops[nh_count] = nhop_addr; + nh_count++; + } + break; + case NEXTHOP_TYPE_IFINDEX: + if (if_count < multipath_num) { + STREAM_GETL(s, ifindices[if_count++]); + } + break; + case NEXTHOP_TYPE_BLACKHOLE: + route_entry_nexthop_blackhole_add(re, bh_type); + break; + default: + zlog_warn( + "%s: Please use ZEBRA_ROUTE_ADD if you want to pass non v6 nexthops", + __PRETTY_FUNCTION__); + nexthops_free(re->ng.nexthop); + XFREE(MTYPE_RE, re); + return; + } + } + + max_nh_if = (nh_count > if_count) ? nh_count : if_count; + for (i = 0; i < max_nh_if; i++) { + if ((i < nh_count) + && !IN6_IS_ADDR_UNSPECIFIED(&nexthops[i])) { + if ((i < if_count) && ifindices[i]) + nexthop = + route_entry_nexthop_ipv6_ifindex_add( + re, &nexthops[i], + ifindices[i], + re->vrf_id); + else + nexthop = route_entry_nexthop_ipv6_add( + re, &nexthops[i], re->vrf_id); + + if (CHECK_FLAG(message, ZAPI_MESSAGE_LABEL)) + nexthop_add_labels(nexthop, label_type, + 1, &labels[i]); + } else { + if ((i < if_count) && ifindices[i]) + route_entry_nexthop_ifindex_add( + re, ifindices[i], re->vrf_id); + } + } + } + + /* Distance. */ + if (CHECK_FLAG(message, ZAPI_MESSAGE_DISTANCE)) + STREAM_GETC(s, re->distance); + + /* Metric. */ + if (CHECK_FLAG(message, ZAPI_MESSAGE_METRIC)) + STREAM_GETL(s, re->metric); + + /* Tag */ + if (CHECK_FLAG(message, ZAPI_MESSAGE_TAG)) + STREAM_GETL(s, re->tag); + else + re->tag = 0; + + if (CHECK_FLAG(message, ZAPI_MESSAGE_MTU)) + STREAM_GETL(s, re->mtu); + else + re->mtu = 0; + + /* Table */ + re->table = zvrf->table_id; + + ret = rib_add_multipath(AFI_IP6, safi, &p, NULL, re); + /* Stats */ + if (ret > 0) + client->v4_route_add_cnt++; + else if (ret < 0) + client->v4_route_upd8_cnt++; + + return; + +stream_failure: + nexthops_free(re->ng.nexthop); + XFREE(MTYPE_RE, re); +} + +static void zread_ipv6_add(ZAPI_HANDLER_ARGS) +{ + unsigned int i; + struct stream *s; + struct in6_addr nhop_addr; + ifindex_t ifindex; + struct route_entry *re; + uint8_t message; + uint8_t nexthop_num; + uint8_t nexthop_type; + struct prefix p; + struct prefix_ipv6 src_p, *src_pp; + safi_t safi; + static struct in6_addr nexthops[MULTIPATH_NUM]; + static unsigned int ifindices[MULTIPATH_NUM]; + int ret; + static mpls_label_t labels[MULTIPATH_NUM]; + enum lsp_types_t label_type = ZEBRA_LSP_NONE; + mpls_label_t label; + struct nexthop *nexthop; + enum blackhole_type bh_type = BLACKHOLE_NULL; + + /* Get input stream. */ + s = msg; + + memset(&nhop_addr, 0, sizeof(struct in6_addr)); + + /* Allocate new re. */ + re = XCALLOC(MTYPE_RE, sizeof(struct route_entry)); + + /* Type, flags, message. */ + STREAM_GETC(s, re->type); + if (re->type > ZEBRA_ROUTE_MAX) { + zlog_warn("%s: Specified route type: %d is not a legal value\n", + __PRETTY_FUNCTION__, re->type); + XFREE(MTYPE_RE, re); + return; + } + STREAM_GETW(s, re->instance); + STREAM_GETL(s, re->flags); + STREAM_GETC(s, message); + STREAM_GETW(s, safi); + re->uptime = time(NULL); + + /* IPv6 prefix. */ + memset(&p, 0, sizeof(p)); + p.family = AF_INET6; + STREAM_GETC(s, p.prefixlen); + if (p.prefixlen > IPV6_MAX_BITLEN) { + zlog_warn( + "%s: Specified prefix length %d is to large for v6 prefix", + __PRETTY_FUNCTION__, p.prefixlen); + XFREE(MTYPE_RE, re); + return; + } + STREAM_GET(&p.u.prefix6, s, PSIZE(p.prefixlen)); + + if (CHECK_FLAG(message, ZAPI_MESSAGE_SRCPFX)) { + memset(&src_p, 0, sizeof(src_p)); + src_p.family = AF_INET6; + STREAM_GETC(s, src_p.prefixlen); + if (src_p.prefixlen > IPV6_MAX_BITLEN) { + zlog_warn( + "%s: Specified src prefix length %d is to large for v6 prefix", + __PRETTY_FUNCTION__, src_p.prefixlen); + XFREE(MTYPE_RE, re); + return; + } + STREAM_GET(&src_p.prefix, s, PSIZE(src_p.prefixlen)); + src_pp = &src_p; + } else + src_pp = NULL; + + /* VRF ID */ + re->vrf_id = zvrf_id(zvrf); + + /* We need to give nh-addr, nh-ifindex with the same next-hop object + * to the re to ensure that IPv6 multipathing works; need to coalesce + * these. Clients should send the same number of paired set of + * next-hop-addr/next-hop-ifindices. */ + if (CHECK_FLAG(message, ZAPI_MESSAGE_NEXTHOP)) { + unsigned int nh_count = 0; + unsigned int if_count = 0; + unsigned int max_nh_if = 0; + + STREAM_GETC(s, nexthop_num); + zserv_nexthop_num_warn(__func__, (const struct prefix *)&p, + nexthop_num); + + if (CHECK_FLAG(message, ZAPI_MESSAGE_LABEL)) + label_type = lsp_type_from_re_type(client->proto); + + for (i = 0; i < nexthop_num; i++) { + STREAM_GETC(s, nexthop_type); + + switch (nexthop_type) { + case NEXTHOP_TYPE_IPV6: + STREAM_GET(&nhop_addr, s, 16); + if (nh_count < MULTIPATH_NUM) { + /* For labeled-unicast, each nexthop is + * followed by label. */ + if (CHECK_FLAG(message, + ZAPI_MESSAGE_LABEL)) { + STREAM_GETL(s, label); + labels[nh_count] = label; + } + nexthops[nh_count++] = nhop_addr; + } + break; + case NEXTHOP_TYPE_IPV6_IFINDEX: + STREAM_GET(&nhop_addr, s, 16); + STREAM_GETL(s, ifindex); + route_entry_nexthop_ipv6_ifindex_add( + re, &nhop_addr, ifindex, re->vrf_id); + break; + case NEXTHOP_TYPE_IFINDEX: + if (if_count < multipath_num) { + STREAM_GETL(s, ifindices[if_count++]); + } + break; + case NEXTHOP_TYPE_BLACKHOLE: + route_entry_nexthop_blackhole_add(re, bh_type); + break; + default: + zlog_warn( + "%s: Please use ZEBRA_ROUTE_ADD if you want to pass non v6 nexthops", + __PRETTY_FUNCTION__); + nexthops_free(re->ng.nexthop); + XFREE(MTYPE_RE, re); + return; + } + } + + max_nh_if = (nh_count > if_count) ? nh_count : if_count; + for (i = 0; i < max_nh_if; i++) { + if ((i < nh_count) + && !IN6_IS_ADDR_UNSPECIFIED(&nexthops[i])) { + if ((i < if_count) && ifindices[i]) + nexthop = + route_entry_nexthop_ipv6_ifindex_add( + re, &nexthops[i], + ifindices[i], + re->vrf_id); + else + nexthop = route_entry_nexthop_ipv6_add( + re, &nexthops[i], re->vrf_id); + if (CHECK_FLAG(message, ZAPI_MESSAGE_LABEL)) + nexthop_add_labels(nexthop, label_type, + 1, &labels[i]); + } else { + if ((i < if_count) && ifindices[i]) + route_entry_nexthop_ifindex_add( + re, ifindices[i], re->vrf_id); + } + } + } + + /* Distance. */ + if (CHECK_FLAG(message, ZAPI_MESSAGE_DISTANCE)) + STREAM_GETC(s, re->distance); + + /* Metric. */ + if (CHECK_FLAG(message, ZAPI_MESSAGE_METRIC)) + STREAM_GETL(s, re->metric); + + /* Tag */ + if (CHECK_FLAG(message, ZAPI_MESSAGE_TAG)) + STREAM_GETL(s, re->tag); + else + re->tag = 0; + + if (CHECK_FLAG(message, ZAPI_MESSAGE_MTU)) + STREAM_GETL(s, re->mtu); + else + re->mtu = 0; + + re->table = zvrf->table_id; + + ret = rib_add_multipath(AFI_IP6, safi, &p, src_pp, re); + /* Stats */ + if (ret > 0) + client->v6_route_add_cnt++; + else if (ret < 0) + client->v6_route_upd8_cnt++; + + return; + +stream_failure: + nexthops_free(re->ng.nexthop); + XFREE(MTYPE_RE, re); +} + +/* Zebra server IPv6 prefix delete function. */ +static void zread_ipv6_delete(ZAPI_HANDLER_ARGS) +{ + struct stream *s; + struct zapi_ipv6 api; + struct prefix p; + struct prefix_ipv6 src_p, *src_pp; + + s = msg; + + /* Type, flags, message. */ + STREAM_GETC(s, api.type); + STREAM_GETW(s, api.instance); + STREAM_GETL(s, api.flags); + STREAM_GETC(s, api.message); + STREAM_GETW(s, api.safi); + + /* IPv4 prefix. */ + memset(&p, 0, sizeof(struct prefix)); + p.family = AF_INET6; + STREAM_GETC(s, p.prefixlen); + STREAM_GET(&p.u.prefix6, s, PSIZE(p.prefixlen)); + + if (CHECK_FLAG(api.message, ZAPI_MESSAGE_SRCPFX)) { + memset(&src_p, 0, sizeof(struct prefix_ipv6)); + src_p.family = AF_INET6; + STREAM_GETC(s, src_p.prefixlen); + STREAM_GET(&src_p.prefix, s, PSIZE(src_p.prefixlen)); + src_pp = &src_p; + } else + src_pp = NULL; + + rib_delete(AFI_IP6, api.safi, zvrf_id(zvrf), api.type, api.instance, + api.flags, &p, src_pp, NULL, client->rtm_table, 0, false, + NULL); + + client->v6_route_del_cnt++; + +stream_failure: + return; +} + +/* Register zebra server router-id information. Send current router-id */ +static void zread_router_id_add(ZAPI_HANDLER_ARGS) +{ + struct prefix p; + + /* Router-id information is needed. */ + vrf_bitmap_set(client->ridinfo, zvrf_id(zvrf)); + + router_id_get(&p, zvrf_id(zvrf)); + + zsend_router_id_update(client, &p, zvrf_id(zvrf)); +} + +/* Unregister zebra server router-id information. */ +static void zread_router_id_delete(ZAPI_HANDLER_ARGS) +{ + vrf_bitmap_unset(client->ridinfo, zvrf_id(zvrf)); +} + +static void zsend_capabilities(struct zserv *client, struct zebra_vrf *zvrf) +{ + struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); + + zclient_create_header(s, ZEBRA_CAPABILITIES, zvrf->vrf->vrf_id); + stream_putc(s, mpls_enabled); + stream_putl(s, multipath_num); + + stream_putw_at(s, 0, stream_get_endp(s)); + zebra_server_send_message(client, s); +} + +/* Tie up route-type and client->sock */ +static void zread_hello(ZAPI_HANDLER_ARGS) +{ + /* type of protocol (lib/zebra.h) */ + uint8_t proto; + unsigned short instance; + uint8_t notify; + + STREAM_GETC(msg, proto); + STREAM_GETW(msg, instance); + STREAM_GETC(msg, notify); + if (notify) + client->notify_owner = true; + + /* accept only dynamic routing protocols */ + if ((proto < ZEBRA_ROUTE_MAX) && (proto > ZEBRA_ROUTE_STATIC)) { + zlog_notice( + "client %d says hello and bids fair to announce only %s routes vrf=%u", + client->sock, zebra_route_string(proto), + zvrf->vrf->vrf_id); + if (instance) + zlog_notice("client protocol instance %d", instance); + + client->proto = proto; + client->instance = instance; + } + + zsend_capabilities(client, zvrf); +stream_failure: + return; +} + +/* Unregister all information in a VRF. */ +static void zread_vrf_unregister(ZAPI_HANDLER_ARGS) +{ + int i; + afi_t afi; + + for (afi = AFI_IP; afi < AFI_MAX; afi++) + for (i = 0; i < ZEBRA_ROUTE_MAX; i++) + vrf_bitmap_unset(client->redist[afi][i], zvrf_id(zvrf)); + vrf_bitmap_unset(client->redist_default, zvrf_id(zvrf)); + vrf_bitmap_unset(client->ifinfo, zvrf_id(zvrf)); + vrf_bitmap_unset(client->ridinfo, zvrf_id(zvrf)); +} + +static void zread_mpls_labels(ZAPI_HANDLER_ARGS) +{ + struct stream *s; + enum lsp_types_t type; + struct prefix prefix; + enum nexthop_types_t gtype; + union g_addr gate; + ifindex_t ifindex; + mpls_label_t in_label, out_label; + uint8_t distance; + + /* Get input stream. */ + s = msg; + + /* Get data. */ + STREAM_GETC(s, type); + STREAM_GETL(s, prefix.family); + switch (prefix.family) { + case AF_INET: + STREAM_GET(&prefix.u.prefix4.s_addr, s, IPV4_MAX_BYTELEN); + STREAM_GETC(s, prefix.prefixlen); + if (prefix.prefixlen > IPV4_MAX_BITLEN) { + zlog_warn( + "%s: Specified prefix length %d is greater than a v4 address can support", + __PRETTY_FUNCTION__, prefix.prefixlen); + return; + } + STREAM_GET(&gate.ipv4.s_addr, s, IPV4_MAX_BYTELEN); + break; + case AF_INET6: + STREAM_GET(&prefix.u.prefix6, s, 16); + STREAM_GETC(s, prefix.prefixlen); + if (prefix.prefixlen > IPV6_MAX_BITLEN) { + zlog_warn( + "%s: Specified prefix length %d is greater than a v6 address can support", + __PRETTY_FUNCTION__, prefix.prefixlen); + return; + } + STREAM_GET(&gate.ipv6, s, 16); + break; + default: + zlog_warn("%s: Specified AF %d is not supported for this call", + __PRETTY_FUNCTION__, prefix.family); + return; + } + STREAM_GETL(s, ifindex); + STREAM_GETC(s, distance); + STREAM_GETL(s, in_label); + STREAM_GETL(s, out_label); + + switch (prefix.family) { + case AF_INET: + if (ifindex) + gtype = NEXTHOP_TYPE_IPV4_IFINDEX; + else + gtype = NEXTHOP_TYPE_IPV4; + break; + case AF_INET6: + if (ifindex) + gtype = NEXTHOP_TYPE_IPV6_IFINDEX; + else + gtype = NEXTHOP_TYPE_IPV6; + break; + default: + return; + } + + if (!mpls_enabled) + return; + + if (hdr->command == ZEBRA_MPLS_LABELS_ADD) { + mpls_lsp_install(zvrf, type, in_label, out_label, gtype, &gate, + ifindex); + mpls_ftn_update(1, zvrf, type, &prefix, gtype, &gate, ifindex, + distance, out_label); + } else if (hdr->command == ZEBRA_MPLS_LABELS_DELETE) { + mpls_lsp_uninstall(zvrf, type, in_label, gtype, &gate, ifindex); + mpls_ftn_update(0, zvrf, type, &prefix, gtype, &gate, ifindex, + distance, out_label); + } +stream_failure: + return; +} + +/* Send response to a table manager connect request to client */ +static void zread_table_manager_connect(struct zserv *client, + struct stream *msg, vrf_id_t vrf_id) +{ + struct stream *s; + uint8_t proto; + uint16_t instance; + + s = msg; + + /* Get data. */ + STREAM_GETC(s, proto); + STREAM_GETW(s, instance); + + /* accept only dynamic routing protocols */ + if ((proto >= ZEBRA_ROUTE_MAX) || (proto <= ZEBRA_ROUTE_STATIC)) { + zlog_err("client %d has wrong protocol %s", client->sock, + zebra_route_string(proto)); + zsend_table_manager_connect_response(client, vrf_id, 1); + return; + } + zlog_notice("client %d with vrf %u instance %u connected as %s", + client->sock, vrf_id, instance, zebra_route_string(proto)); + client->proto = proto; + client->instance = instance; + + /* + * Release previous labels of same protocol and instance. + * This is done in case it restarted from an unexpected shutdown. + */ + release_daemon_table_chunks(proto, instance); + + zsend_table_manager_connect_response(client, vrf_id, 0); + +stream_failure: + return; +} + +static void zread_label_manager_connect(struct zserv *client, + struct stream *msg, vrf_id_t vrf_id) +{ + struct stream *s; + /* type of protocol (lib/zebra.h) */ + uint8_t proto; + unsigned short instance; + + /* Get input stream. */ + s = msg; + + /* Get data. */ + STREAM_GETC(s, proto); + STREAM_GETW(s, instance); + + /* accept only dynamic routing protocols */ + if ((proto >= ZEBRA_ROUTE_MAX) || (proto <= ZEBRA_ROUTE_STATIC)) { + zlog_err("client %d has wrong protocol %s", client->sock, + zebra_route_string(proto)); + zsend_label_manager_connect_response(client, vrf_id, 1); + return; + } + zlog_notice("client %d with vrf %u instance %u connected as %s", + client->sock, vrf_id, instance, zebra_route_string(proto)); + client->proto = proto; + client->instance = instance; + + /* + Release previous labels of same protocol and instance. + This is done in case it restarted from an unexpected shutdown. + */ + release_daemon_label_chunks(proto, instance); + + zlog_debug( + " Label Manager client connected: sock %d, proto %s, vrf %u instance %u", + client->sock, zebra_route_string(proto), vrf_id, instance); + /* send response back */ + zsend_label_manager_connect_response(client, vrf_id, 0); + +stream_failure: + return; +} + +static void zread_get_label_chunk(struct zserv *client, struct stream *msg, + vrf_id_t vrf_id) +{ + struct stream *s; + uint8_t keep; + uint32_t size; + struct label_manager_chunk *lmc; + + /* Get input stream. */ + s = msg; + + /* Get data. */ + STREAM_GETC(s, keep); + STREAM_GETL(s, size); + + lmc = assign_label_chunk(client->proto, client->instance, keep, size); + if (!lmc) + zlog_err("%s: Unable to assign Label Chunk of size %u", + __func__, size); + else + zlog_debug("Assigned Label Chunk %u - %u to %u", lmc->start, + lmc->end, keep); + /* send response back */ + zsend_assign_label_chunk_response(client, vrf_id, lmc); + +stream_failure: + return; +} + +static void zread_release_label_chunk(struct zserv *client, struct stream *msg) +{ + struct stream *s; + uint32_t start, end; + + /* Get input stream. */ + s = msg; + + /* Get data. */ + STREAM_GETL(s, start); + STREAM_GETL(s, end); + + release_label_chunk(client->proto, client->instance, start, end); + +stream_failure: + return; +} +static void zread_label_manager_request(ZAPI_HANDLER_ARGS) +{ + /* to avoid sending other messages like ZERBA_INTERFACE_UP */ + if (hdr->command == ZEBRA_LABEL_MANAGER_CONNECT) + client->is_synchronous = 1; + + /* external label manager */ + if (lm_is_external) + zread_relay_label_manager_request(hdr->command, client, + zvrf_id(zvrf)); + /* this is a label manager */ + else { + if (hdr->command == ZEBRA_LABEL_MANAGER_CONNECT) + zread_label_manager_connect(client, msg, zvrf_id(zvrf)); + else { + /* Sanity: don't allow 'unidentified' requests */ + if (!client->proto) { + zlog_err( + "Got label request from an unidentified client"); + return; + } + if (hdr->command == ZEBRA_GET_LABEL_CHUNK) + zread_get_label_chunk(client, msg, + zvrf_id(zvrf)); + else if (hdr->command == ZEBRA_RELEASE_LABEL_CHUNK) + zread_release_label_chunk(client, msg); + } + } +} + +static void zread_get_table_chunk(struct zserv *client, struct stream *msg, + vrf_id_t vrf_id) +{ + struct stream *s; + uint32_t size; + struct table_manager_chunk *tmc; + + /* Get input stream. */ + s = msg; + + /* Get data. */ + STREAM_GETL(s, size); + + tmc = assign_table_chunk(client->proto, client->instance, size); + if (!tmc) + zlog_err("%s: Unable to assign Table Chunk of size %u", + __func__, size); + else + zlog_debug("Assigned Table Chunk %u - %u", tmc->start, + tmc->end); + /* send response back */ + zsend_assign_table_chunk_response(client, vrf_id, tmc); + +stream_failure: + return; +} + +static void zread_release_table_chunk(struct zserv *client, struct stream *msg) +{ + struct stream *s; + uint32_t start, end; + + /* Get input stream. */ + s = msg; + + /* Get data. */ + STREAM_GETL(s, start); + STREAM_GETL(s, end); + + release_table_chunk(client->proto, client->instance, start, end); + +stream_failure: + return; +} + +static void zread_table_manager_request(ZAPI_HANDLER_ARGS) +{ + /* to avoid sending other messages like ZERBA_INTERFACE_UP */ + if (hdr->command == ZEBRA_TABLE_MANAGER_CONNECT) + zread_table_manager_connect(client, msg, zvrf_id(zvrf)); + else { + /* Sanity: don't allow 'unidentified' requests */ + if (!client->proto) { + zlog_err( + "Got table request from an unidentified client"); + return; + } + if (hdr->command == ZEBRA_GET_TABLE_CHUNK) + zread_get_table_chunk(client, msg, zvrf_id(zvrf)); + else if (hdr->command == ZEBRA_RELEASE_TABLE_CHUNK) + zread_release_table_chunk(client, msg); + } +} + +static void zread_pseudowire(ZAPI_HANDLER_ARGS) +{ + struct stream *s; + char ifname[IF_NAMESIZE]; + ifindex_t ifindex; + int type; + int af; + union g_addr nexthop; + uint32_t local_label; + uint32_t remote_label; + uint8_t flags; + union pw_protocol_fields data; + uint8_t protocol; + struct zebra_pw *pw; + + /* Get input stream. */ + s = msg; + + /* Get data. */ + STREAM_GET(ifname, s, IF_NAMESIZE); + STREAM_GETL(s, ifindex); + STREAM_GETL(s, type); + STREAM_GETL(s, af); + switch (af) { + case AF_INET: + STREAM_GET(&nexthop.ipv4.s_addr, s, IPV4_MAX_BYTELEN); + break; + case AF_INET6: + STREAM_GET(&nexthop.ipv6, s, 16); + break; + default: + return; + } + STREAM_GETL(s, local_label); + STREAM_GETL(s, remote_label); + STREAM_GETC(s, flags); + STREAM_GET(&data, s, sizeof(data)); + protocol = client->proto; + + pw = zebra_pw_find(zvrf, ifname); + switch (hdr->command) { + case ZEBRA_PW_ADD: + if (pw) { + zlog_warn("%s: pseudowire %s already exists [%s]", + __func__, ifname, + zserv_command_string(hdr->command)); + return; + } + + zebra_pw_add(zvrf, ifname, protocol, client); + break; + case ZEBRA_PW_DELETE: + if (!pw) { + zlog_warn("%s: pseudowire %s not found [%s]", __func__, + ifname, zserv_command_string(hdr->command)); + return; + } + + zebra_pw_del(zvrf, pw); + break; + case ZEBRA_PW_SET: + case ZEBRA_PW_UNSET: + if (!pw) { + zlog_warn("%s: pseudowire %s not found [%s]", __func__, + ifname, zserv_command_string(hdr->command)); + return; + } + + switch (hdr->command) { + case ZEBRA_PW_SET: + pw->enabled = 1; + break; + case ZEBRA_PW_UNSET: + pw->enabled = 0; + break; + } + + zebra_pw_change(pw, ifindex, type, af, &nexthop, local_label, + remote_label, flags, &data); + break; + } + +stream_failure: + return; +} + +static void zread_interface_set_master(ZAPI_HANDLER_ARGS) +{ + struct interface *master; + struct interface *slave; + struct stream *s = msg; + int ifindex; + vrf_id_t vrf_id; + + STREAM_GETL(s, vrf_id); + STREAM_GETL(s, ifindex); + master = if_lookup_by_index(ifindex, vrf_id); + + STREAM_GETL(s, vrf_id); + STREAM_GETL(s, ifindex); + slave = if_lookup_by_index(ifindex, vrf_id); + + if (!master || !slave) + return; + + kernel_interface_set_master(master, slave); + +stream_failure: + return; +} + + +static void zread_vrf_label(ZAPI_HANDLER_ARGS) +{ + struct interface *ifp; + mpls_label_t nlabel; + afi_t afi; + struct stream *s; + struct zebra_vrf *def_zvrf; + enum lsp_types_t ltype; + + s = msg; + STREAM_GETL(s, nlabel); + STREAM_GETC(s, afi); + if (nlabel == zvrf->label[afi]) { + /* + * Nothing to do here move along + */ + return; + } + + STREAM_GETC(s, ltype); + + if (zvrf->vrf->vrf_id != VRF_DEFAULT) + ifp = if_lookup_by_name(zvrf->vrf->name, zvrf->vrf->vrf_id); + else + ifp = if_lookup_by_name("lo", VRF_DEFAULT); + + if (!ifp) { + zlog_debug("Unable to find specified Interface for %s", + zvrf->vrf->name); + return; + } + + def_zvrf = zebra_vrf_lookup_by_id(VRF_DEFAULT); + + if (zvrf->label[afi] != MPLS_LABEL_NONE) { + afi_t scrubber; + bool really_remove; + + really_remove = true; + for (scrubber = AFI_IP; scrubber < AFI_MAX; scrubber++) { + if (scrubber == afi) + continue; + + if (zvrf->label[scrubber] == MPLS_LABEL_NONE) + continue; + + if (zvrf->label[afi] == zvrf->label[scrubber]) { + really_remove = false; + break; + } + } + + if (really_remove) + mpls_lsp_uninstall(def_zvrf, ltype, zvrf->label[afi], + NEXTHOP_TYPE_IFINDEX, NULL, + ifp->ifindex); + } + + if (nlabel != MPLS_LABEL_NONE) + mpls_lsp_install(def_zvrf, ltype, nlabel, + MPLS_LABEL_IMPLICIT_NULL, NEXTHOP_TYPE_IFINDEX, + NULL, ifp->ifindex); + + zvrf->label[afi] = nlabel; +stream_failure: + return; +} + +static inline void zread_rule(ZAPI_HANDLER_ARGS) +{ + struct zebra_pbr_rule zpr; + struct stream *s; + uint32_t total, i; + ifindex_t ifindex; + + s = msg; + STREAM_GETL(s, total); + + for (i = 0; i < total; i++) { + memset(&zpr, 0, sizeof(zpr)); + + zpr.sock = client->sock; + zpr.rule.vrf_id = hdr->vrf_id; + STREAM_GETL(s, zpr.rule.seq); + STREAM_GETL(s, zpr.rule.priority); + STREAM_GETL(s, zpr.rule.unique); + STREAM_GETC(s, zpr.rule.filter.src_ip.family); + STREAM_GETC(s, zpr.rule.filter.src_ip.prefixlen); + STREAM_GET(&zpr.rule.filter.src_ip.u.prefix, s, + prefix_blen(&zpr.rule.filter.src_ip)); + STREAM_GETW(s, zpr.rule.filter.src_port); + STREAM_GETC(s, zpr.rule.filter.dst_ip.family); + STREAM_GETC(s, zpr.rule.filter.dst_ip.prefixlen); + STREAM_GET(&zpr.rule.filter.dst_ip.u.prefix, s, + prefix_blen(&zpr.rule.filter.dst_ip)); + STREAM_GETW(s, zpr.rule.filter.dst_port); + STREAM_GETL(s, zpr.rule.filter.fwmark); + STREAM_GETL(s, zpr.rule.action.table); + STREAM_GETL(s, ifindex); + + if (ifindex) { + zpr.ifp = if_lookup_by_index(ifindex, VRF_UNKNOWN); + if (!zpr.ifp) { + zlog_debug("Failed to lookup ifindex: %u", + ifindex); + return; + } + } + + if (!is_default_prefix(&zpr.rule.filter.src_ip)) + zpr.rule.filter.filter_bm |= PBR_FILTER_SRC_IP; + + if (!is_default_prefix(&zpr.rule.filter.dst_ip)) + zpr.rule.filter.filter_bm |= PBR_FILTER_DST_IP; + + if (zpr.rule.filter.src_port) + zpr.rule.filter.filter_bm |= PBR_FILTER_SRC_PORT; + + if (zpr.rule.filter.dst_port) + zpr.rule.filter.filter_bm |= PBR_FILTER_DST_PORT; + + if (zpr.rule.filter.fwmark) + zpr.rule.filter.filter_bm |= PBR_FILTER_FWMARK; + + if (hdr->command == ZEBRA_RULE_ADD) + zebra_pbr_add_rule(zvrf->zns, &zpr); + else + zebra_pbr_del_rule(zvrf->zns, &zpr); + } + +stream_failure: + return; +} + +static inline void zread_ipset(ZAPI_HANDLER_ARGS) +{ + struct zebra_pbr_ipset zpi; + struct stream *s; + uint32_t total, i; + + s = msg; + STREAM_GETL(s, total); + + for (i = 0; i < total; i++) { + memset(&zpi, 0, sizeof(zpi)); + + zpi.sock = client->sock; + STREAM_GETL(s, zpi.unique); + STREAM_GETL(s, zpi.type); + STREAM_GET(&zpi.ipset_name, s, ZEBRA_IPSET_NAME_SIZE); + + if (hdr->command == ZEBRA_IPSET_CREATE) + zebra_pbr_create_ipset(zvrf->zns, &zpi); + else + zebra_pbr_destroy_ipset(zvrf->zns, &zpi); + } + +stream_failure: + return; +} + +static inline void zread_ipset_entry(ZAPI_HANDLER_ARGS) +{ + struct zebra_pbr_ipset_entry zpi; + struct zebra_pbr_ipset ipset; + struct stream *s; + uint32_t total, i; + + s = msg; + STREAM_GETL(s, total); + + for (i = 0; i < total; i++) { + memset(&zpi, 0, sizeof(zpi)); + memset(&ipset, 0, sizeof(ipset)); + + zpi.sock = client->sock; + STREAM_GETL(s, zpi.unique); + STREAM_GET(&ipset.ipset_name, s, ZEBRA_IPSET_NAME_SIZE); + STREAM_GETC(s, zpi.src.family); + STREAM_GETC(s, zpi.src.prefixlen); + STREAM_GET(&zpi.src.u.prefix, s, prefix_blen(&zpi.src)); + STREAM_GETC(s, zpi.dst.family); + STREAM_GETC(s, zpi.dst.prefixlen); + STREAM_GET(&zpi.dst.u.prefix, s, prefix_blen(&zpi.dst)); + + if (!is_default_prefix(&zpi.src)) + zpi.filter_bm |= PBR_FILTER_SRC_IP; + + if (!is_default_prefix(&zpi.dst)) + zpi.filter_bm |= PBR_FILTER_DST_IP; + + /* calculate backpointer */ + zpi.backpointer = zebra_pbr_lookup_ipset_pername( + zvrf->zns, ipset.ipset_name); + if (hdr->command == ZEBRA_IPSET_ENTRY_ADD) + zebra_pbr_add_ipset_entry(zvrf->zns, &zpi); + else + zebra_pbr_del_ipset_entry(zvrf->zns, &zpi); + } + +stream_failure: + return; +} + +static inline void zread_iptable(ZAPI_HANDLER_ARGS) +{ + struct zebra_pbr_iptable zpi; + struct stream *s; + + s = msg; + + memset(&zpi, 0, sizeof(zpi)); + + zpi.sock = client->sock; + STREAM_GETL(s, zpi.unique); + STREAM_GETL(s, zpi.type); + STREAM_GETL(s, zpi.filter_bm); + STREAM_GETL(s, zpi.action); + STREAM_GETL(s, zpi.fwmark); + STREAM_GET(&zpi.ipset_name, s, ZEBRA_IPSET_NAME_SIZE); + + if (hdr->command == ZEBRA_IPTABLE_ADD) + zebra_pbr_add_iptable(zvrf->zns, &zpi); + else + zebra_pbr_del_iptable(zvrf->zns, &zpi); +stream_failure: + return; +} + +void (*zserv_handlers[])(ZAPI_HANDLER_ARGS) = { + [ZEBRA_ROUTER_ID_ADD] = zread_router_id_add, + [ZEBRA_ROUTER_ID_DELETE] = zread_router_id_delete, + [ZEBRA_INTERFACE_ADD] = zread_interface_add, + [ZEBRA_INTERFACE_DELETE] = zread_interface_delete, + [ZEBRA_ROUTE_ADD] = zread_route_add, + [ZEBRA_ROUTE_DELETE] = zread_route_del, + [ZEBRA_IPV4_ROUTE_ADD] = zread_ipv4_add, + [ZEBRA_IPV4_ROUTE_DELETE] = zread_ipv4_delete, + [ZEBRA_IPV4_ROUTE_IPV6_NEXTHOP_ADD] = zread_ipv4_route_ipv6_nexthop_add, + [ZEBRA_IPV6_ROUTE_ADD] = zread_ipv6_add, + [ZEBRA_IPV6_ROUTE_DELETE] = zread_ipv6_delete, + [ZEBRA_REDISTRIBUTE_ADD] = zebra_redistribute_add, + [ZEBRA_REDISTRIBUTE_DELETE] = zebra_redistribute_delete, + [ZEBRA_REDISTRIBUTE_DEFAULT_ADD] = zebra_redistribute_default_add, + [ZEBRA_REDISTRIBUTE_DEFAULT_DELETE] = zebra_redistribute_default_delete, + [ZEBRA_IPV4_NEXTHOP_LOOKUP_MRIB] = zread_ipv4_nexthop_lookup_mrib, + [ZEBRA_HELLO] = zread_hello, + [ZEBRA_NEXTHOP_REGISTER] = zread_rnh_register, + [ZEBRA_NEXTHOP_UNREGISTER] = zread_rnh_unregister, + [ZEBRA_IMPORT_ROUTE_REGISTER] = zread_rnh_register, + [ZEBRA_IMPORT_ROUTE_UNREGISTER] = zread_rnh_unregister, + [ZEBRA_BFD_DEST_UPDATE] = zebra_ptm_bfd_dst_register, + [ZEBRA_BFD_DEST_REGISTER] = zebra_ptm_bfd_dst_register, + [ZEBRA_BFD_DEST_DEREGISTER] = zebra_ptm_bfd_dst_deregister, + [ZEBRA_VRF_UNREGISTER] = zread_vrf_unregister, + [ZEBRA_VRF_LABEL] = zread_vrf_label, + [ZEBRA_BFD_CLIENT_REGISTER] = zebra_ptm_bfd_client_register, +#if defined(HAVE_RTADV) + [ZEBRA_INTERFACE_ENABLE_RADV] = zebra_interface_radv_enable, + [ZEBRA_INTERFACE_DISABLE_RADV] = zebra_interface_radv_disable, +#else + [ZEBRA_INTERFACE_ENABLE_RADV] = NULL, + [ZEBRA_INTERFACE_DISABLE_RADV] = NULL, +#endif + [ZEBRA_MPLS_LABELS_ADD] = zread_mpls_labels, + [ZEBRA_MPLS_LABELS_DELETE] = zread_mpls_labels, + [ZEBRA_IPMR_ROUTE_STATS] = zebra_ipmr_route_stats, + [ZEBRA_LABEL_MANAGER_CONNECT] = zread_label_manager_request, + [ZEBRA_GET_LABEL_CHUNK] = zread_label_manager_request, + [ZEBRA_RELEASE_LABEL_CHUNK] = zread_label_manager_request, + [ZEBRA_FEC_REGISTER] = zread_fec_register, + [ZEBRA_FEC_UNREGISTER] = zread_fec_unregister, + [ZEBRA_ADVERTISE_DEFAULT_GW] = zebra_vxlan_advertise_gw_macip, + [ZEBRA_ADVERTISE_SUBNET] = zebra_vxlan_advertise_subnet, + [ZEBRA_ADVERTISE_ALL_VNI] = zebra_vxlan_advertise_all_vni, + [ZEBRA_REMOTE_VTEP_ADD] = zebra_vxlan_remote_vtep_add, + [ZEBRA_REMOTE_VTEP_DEL] = zebra_vxlan_remote_vtep_del, + [ZEBRA_REMOTE_MACIP_ADD] = zebra_vxlan_remote_macip_add, + [ZEBRA_REMOTE_MACIP_DEL] = zebra_vxlan_remote_macip_del, + [ZEBRA_INTERFACE_SET_MASTER] = zread_interface_set_master, + [ZEBRA_PW_ADD] = zread_pseudowire, + [ZEBRA_PW_DELETE] = zread_pseudowire, + [ZEBRA_PW_SET] = zread_pseudowire, + [ZEBRA_PW_UNSET] = zread_pseudowire, + [ZEBRA_RULE_ADD] = zread_rule, + [ZEBRA_RULE_DELETE] = zread_rule, + [ZEBRA_TABLE_MANAGER_CONNECT] = zread_table_manager_request, + [ZEBRA_GET_TABLE_CHUNK] = zread_table_manager_request, + [ZEBRA_RELEASE_TABLE_CHUNK] = zread_table_manager_request, + [ZEBRA_IPSET_CREATE] = zread_ipset, + [ZEBRA_IPSET_DESTROY] = zread_ipset, + [ZEBRA_IPSET_ENTRY_ADD] = zread_ipset_entry, + [ZEBRA_IPSET_ENTRY_DELETE] = zread_ipset_entry, + [ZEBRA_IPTABLE_ADD] = zread_iptable, + [ZEBRA_IPTABLE_DELETE] = zread_iptable, +}; + +void zserv_handle_commands(struct zserv *client, struct zmsghdr *hdr, + struct stream *msg, struct zebra_vrf *zvrf) +{ + if (hdr->command > array_size(zserv_handlers) + || zserv_handlers[hdr->command] == NULL) + zlog_info("Zebra received unknown command %d", hdr->command); + else + zserv_handlers[hdr->command](client, hdr, msg, zvrf); + + stream_free(msg); +} diff --git a/zebra/zapi_msg.h b/zebra/zapi_msg.h new file mode 100644 index 000000000..771a0966a --- /dev/null +++ b/zebra/zapi_msg.h @@ -0,0 +1,80 @@ +/* + * Zebra API server. + * Portions: + * Copyright (C) 1997-1999 Kunihiro Ishiguro + * Copyright (C) 2015-2018 Cumulus Networks, Inc. + * et al. + * + * 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; see the file COPYING; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include "lib/if.h" +#include "lib/vrf.h" +#include "lib/zclient.h" +#include "lib/pbr.h" + +#include "zebra/rib.h" +#include "zebra/zserv.h" +#include "zebra/zebra_pbr.h" + +/* + * This is called to process inbound ZAPI messages. + * + * client + * the client datastructure + * + * hdr + * the message header + * + * msg + * the message contents, without the header + * + * zvrf + * the vrf + */ +extern void zserv_handle_commands(struct zserv *client, struct zmsghdr *hdr, + struct stream *msg, struct zebra_vrf *zvrf); + +extern int zsend_vrf_add(struct zserv *, struct zebra_vrf *); +extern int zsend_vrf_delete(struct zserv *, struct zebra_vrf *); +extern int zsend_interface_add(struct zserv *, struct interface *); +extern int zsend_interface_delete(struct zserv *, struct interface *); +extern int zsend_interface_addresses(struct zserv *, struct interface *); +extern int zsend_interface_address(int, struct zserv *, struct interface *, + struct connected *); +extern void nbr_connected_add_ipv6(struct interface *, struct in6_addr *); +extern void nbr_connected_delete_ipv6(struct interface *, struct in6_addr *); +extern int zsend_interface_update(int, struct zserv *, struct interface *); +extern int zsend_redistribute_route(int, struct zserv *, struct prefix *, + struct prefix *, struct route_entry *); +extern int zsend_router_id_update(struct zserv *, struct prefix *, vrf_id_t); +extern int zsend_interface_vrf_update(struct zserv *, struct interface *, + vrf_id_t); +extern int zsend_interface_link_params(struct zserv *, struct interface *); +extern int zsend_pw_update(struct zserv *, struct zebra_pw *); +extern int zsend_route_notify_owner(struct route_entry *re, struct prefix *p, + enum zapi_route_notify_owner note); + +extern void zsend_rule_notify_owner(struct zebra_pbr_rule *rule, + enum zapi_rule_notify_owner note); +extern void zsend_ipset_notify_owner(struct zebra_pbr_ipset *ipset, + enum zapi_ipset_notify_owner note); +extern void +zsend_ipset_entry_notify_owner(struct zebra_pbr_ipset_entry *ipset, + enum zapi_ipset_entry_notify_owner note); +extern void zsend_iptable_notify_owner(struct zebra_pbr_iptable *iptable, + enum zapi_iptable_notify_owner note); +extern void zserv_nexthop_num_warn(const char *, const struct prefix *, + const unsigned int); diff --git a/zebra/zebra_ns.h b/zebra/zebra_ns.h index fbf88ae6e..c93db2a76 100644 --- a/zebra/zebra_ns.h +++ b/zebra/zebra_ns.h @@ -25,6 +25,9 @@ #include <lib/ns.h> #include <lib/vrf.h> +#include "zebra/rib.h" +#include "zebra/zebra_vrf.h" + #ifdef HAVE_NETLINK /* Socket interface to kernel */ struct nlsock { diff --git a/zebra/zebra_pbr.c b/zebra/zebra_pbr.c index 758365d71..93c523bf5 100644 --- a/zebra/zebra_pbr.c +++ b/zebra/zebra_pbr.c @@ -26,6 +26,7 @@ #include "zebra/zebra_pbr.h" #include "zebra/rt.h" +#include "zebra/zapi_msg.h" /* definitions */ diff --git a/zebra/zebra_ptm.h b/zebra/zebra_ptm.h index 937c2584f..fa95e9ea7 100644 --- a/zebra/zebra_ptm.h +++ b/zebra/zebra_ptm.h @@ -29,6 +29,7 @@ extern const char ZEBRA_PTM_SOCK_NAME[]; #define ZEBRA_PTM_BFD_CLIENT_FLAG_REG (1 << 1) /* client registered with BFD */ #include "zebra/zserv.h" +#include "zebra/interface.h" /* Zebra ptm context block */ struct zebra_ptm_cb { diff --git a/zebra/zebra_ptm_redistribute.c b/zebra/zebra_ptm_redistribute.c index fe788ac4d..747714769 100644 --- a/zebra/zebra_ptm_redistribute.c +++ b/zebra/zebra_ptm_redistribute.c @@ -23,6 +23,7 @@ #include "vty.h" #include "stream.h" #include "zebra/zserv.h" +#include "zebra/zapi_msg.h" #include "zebra/zebra_ptm_redistribute.h" #include "zebra/zebra_memory.h" diff --git a/zebra/zebra_pw.c b/zebra/zebra_pw.c index 68ad69397..eca8fb0cf 100644 --- a/zebra/zebra_pw.c +++ b/zebra/zebra_pw.c @@ -28,6 +28,7 @@ #include "zebra/debug.h" #include "zebra/rib.h" #include "zebra/zserv.h" +#include "zebra/zapi_msg.h" #include "zebra/zebra_rnh.h" #include "zebra/zebra_vrf.h" #include "zebra/zebra_pw.h" diff --git a/zebra/zebra_pw.h b/zebra/zebra_pw.h index 417d26fe6..db464c05d 100644 --- a/zebra/zebra_pw.h +++ b/zebra/zebra_pw.h @@ -23,8 +23,11 @@ #include <net/if.h> #include <netinet/in.h> -#include "hook.h" -#include "qobj.h" +#include "lib/hook.h" +#include "lib/qobj.h" +#include "lib/pw.h" + +#include "zebra/zebra_vrf.h" #define PW_INSTALL_RETRY_INTERVAL 30 diff --git a/zebra/zebra_rib.c b/zebra/zebra_rib.c index 6ad60a6ff..67832f2d3 100644 --- a/zebra/zebra_rib.c +++ b/zebra/zebra_rib.c @@ -42,7 +42,6 @@ #include "zebra/rib.h" #include "zebra/rt.h" #include "zebra/zebra_ns.h" -#include "zebra/zserv.h" #include "zebra/zebra_vrf.h" #include "zebra/redistribute.h" #include "zebra/zebra_routemap.h" @@ -51,6 +50,7 @@ #include "zebra/interface.h" #include "zebra/connected.h" #include "zebra/zebra_vxlan.h" +#include "zebra/zapi_msg.h" DEFINE_HOOK(rib_update, (struct route_node * rn, const char *reason), (rn, reason)) diff --git a/zebra/zebra_rnh.c b/zebra/zebra_rnh.c index 22a04ee23..8b8997981 100644 --- a/zebra/zebra_rnh.c +++ b/zebra/zebra_rnh.c @@ -945,34 +945,6 @@ void zebra_print_rnh_table(vrf_id_t vrfid, int af, struct vty *vty, print_rnh(rn, vty); } -int zebra_cleanup_rnh_client(vrf_id_t vrf_id, int family, struct zserv *client, - rnh_type_t type) -{ - struct route_table *ntable; - struct route_node *nrn; - struct rnh *rnh; - - if (IS_ZEBRA_DEBUG_NHT) - zlog_debug("%u: Client %s RNH cleanup for family %d type %d", - vrf_id, zebra_route_string(client->proto), family, - type); - - ntable = get_rnh_table(vrf_id, family, type); - if (!ntable) { - zlog_debug("cleanup_rnh_client: rnh table not found\n"); - return -1; - } - - for (nrn = route_top(ntable); nrn; nrn = route_next(nrn)) { - if (!nrn->info) - continue; - - rnh = nrn->info; - zebra_remove_rnh_client(rnh, client, type); - } - return 1; -} - /** * free_state - free up the re structure associated with the rnh. */ @@ -1202,3 +1174,58 @@ static void print_rnh(struct route_node *rn, struct vty *vty) vty_out(vty, " zebra[pseudowires]"); vty_out(vty, "\n"); } + +static int zebra_cleanup_rnh_client(vrf_id_t vrf_id, int family, + struct zserv *client, rnh_type_t type) +{ + struct route_table *ntable; + struct route_node *nrn; + struct rnh *rnh; + + if (IS_ZEBRA_DEBUG_NHT) + zlog_debug("%u: Client %s RNH cleanup for family %d type %d", + vrf_id, zebra_route_string(client->proto), family, + type); + + ntable = get_rnh_table(vrf_id, family, type); + if (!ntable) { + zlog_debug("cleanup_rnh_client: rnh table not found\n"); + return -1; + } + + for (nrn = route_top(ntable); nrn; nrn = route_next(nrn)) { + if (!nrn->info) + continue; + + rnh = nrn->info; + zebra_remove_rnh_client(rnh, client, type); + } + return 1; +} + +/* Cleanup registered nexthops (across VRFs) upon client disconnect. */ +void zebra_client_cleanup_rnh(struct zserv *client) +{ + struct vrf *vrf; + struct zebra_vrf *zvrf; + + RB_FOREACH (vrf, vrf_id_head, &vrfs_by_id) { + if ((zvrf = vrf->info) != NULL) { + zebra_cleanup_rnh_client(zvrf_id(zvrf), AF_INET, client, + RNH_NEXTHOP_TYPE); + zebra_cleanup_rnh_client(zvrf_id(zvrf), AF_INET6, + client, RNH_NEXTHOP_TYPE); + zebra_cleanup_rnh_client(zvrf_id(zvrf), AF_INET, client, + RNH_IMPORT_CHECK_TYPE); + zebra_cleanup_rnh_client(zvrf_id(zvrf), AF_INET6, + client, RNH_IMPORT_CHECK_TYPE); + if (client->proto == ZEBRA_ROUTE_LDP) { + hash_iterate(zvrf->lsp_table, + mpls_ldp_lsp_uninstall_all, + zvrf->lsp_table); + mpls_ldp_ftn_uninstall_all(zvrf, AFI_IP); + mpls_ldp_ftn_uninstall_all(zvrf, AFI_IP6); + } + } + } +} diff --git a/zebra/zebra_rnh.h b/zebra/zebra_rnh.h index f783696c0..4cb84bf70 100644 --- a/zebra/zebra_rnh.h +++ b/zebra/zebra_rnh.h @@ -87,6 +87,12 @@ extern void zebra_evaluate_rnh(vrf_id_t vrfid, int family, int force, extern void zebra_print_rnh_table(vrf_id_t vrfid, int family, struct vty *vty, rnh_type_t); extern char *rnh_str(struct rnh *rnh, char *buf, int size); -extern int zebra_cleanup_rnh_client(vrf_id_t vrf, int family, - struct zserv *client, rnh_type_t type); +/* + * Cleanup any registered nexthops across all VRFs. This is called when closing + * down a connection to a ZAPI client. + * + * client + * the client that is shutting down + */ +extern void zebra_client_cleanup_rnh(struct zserv *client); #endif /*_ZEBRA_RNH_H */ diff --git a/zebra/zebra_routemap.h b/zebra/zebra_routemap.h index 60bf7c3f5..14c7c5884 100644 --- a/zebra/zebra_routemap.h +++ b/zebra/zebra_routemap.h @@ -22,6 +22,8 @@ #ifndef __ZEBRA_ROUTEMAP_H__ #define __ZEBRA_ROUTEMAP_H__ +#include "lib/routemap.h" + extern void zebra_route_map_init(void); extern void zebra_routemap_config_write_protocol(struct vty *vty); extern char *zebra_get_import_table_route_map(afi_t afi, uint32_t table); diff --git a/zebra/zebra_vrf.c b/zebra/zebra_vrf.c index 18d53292b..46443dec4 100644 --- a/zebra/zebra_vrf.c +++ b/zebra/zebra_vrf.c @@ -29,7 +29,7 @@ #include "vty.h" #include "zebra/debug.h" -#include "zebra/zserv.h" +#include "zebra/zapi_msg.h" #include "zebra/rib.h" #include "zebra/zebra_vrf.h" #include "zebra/zebra_rnh.h" diff --git a/zebra/zserv.c b/zebra/zserv.c index fa1679b38..8bdfda228 100644 --- a/zebra/zserv.c +++ b/zebra/zserv.c @@ -1,17 +1,19 @@ -/* Zebra daemon server routine. - * Copyright (C) 1997, 98, 99 Kunihiro Ishiguro - * - * This file is part of GNU Zebra. +/* + * Zebra API server. + * Portions: + * Copyright (C) 1997-1999 Kunihiro Ishiguro + * Copyright (C) 2015-2018 Cumulus Networks, Inc. + * et al. * - * 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. + * 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. * - * 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. + * 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; see the file COPYING; if not, write to the Free Software @@ -19,49 +21,48 @@ */ #include <zebra.h> -#include <sys/un.h> -/* for basename */ -#include <libgen.h> - -#include "prefix.h" -#include "command.h" -#include "if.h" -#include "thread.h" -#include "stream.h" -#include "memory.h" -#include "zebra_memory.h" -#include "table.h" -#include "rib.h" -#include "network.h" -#include "sockunion.h" -#include "log.h" -#include "zclient.h" -#include "privs.h" -#include "network.h" -#include "buffer.h" -#include "nexthop.h" -#include "vrf.h" -#include "libfrr.h" -#include "sockopt.h" - -#include "zebra/zserv.h" -#include "zebra/zebra_ns.h" -#include "zebra/zebra_vrf.h" -#include "zebra/router-id.h" -#include "zebra/redistribute.h" -#include "zebra/debug.h" -#include "zebra/zebra_rnh.h" -#include "zebra/rt_netlink.h" -#include "zebra/interface.h" -#include "zebra/zebra_ptm.h" -#include "zebra/rtadv.h" -#include "zebra/zebra_mpls.h" -#include "zebra/zebra_mroute.h" -#include "zebra/label_manager.h" -#include "zebra/zebra_vxlan.h" -#include "zebra/rt.h" -#include "zebra/zebra_pbr.h" -#include "zebra/table_manager.h" + +#include <errno.h> /* for errno */ +#include <netinet/in.h> /* for sockaddr_in */ +#include <stdint.h> /* for uint8_t */ +#include <stdio.h> /* for snprintf */ +#include <sys/socket.h> /* for sockaddr_storage, AF_UNIX, accept... */ +#include <sys/stat.h> /* for umask, mode_t */ +#include <sys/un.h> /* for sockaddr_un */ +#include <time.h> /* for NULL, tm, gmtime, time_t */ +#include <unistd.h> /* for close, unlink, ssize_t */ + +#include "lib/buffer.h" /* for BUFFER_EMPTY, BUFFER_ERROR, BUFFE... */ +#include "lib/command.h" /* for vty, install_element, CMD_SUCCESS... */ +#include "lib/linklist.h" /* for ALL_LIST_ELEMENTS_RO, ALL_LIST_EL... */ +#include "lib/libfrr.h" /* for frr_zclient_addr */ +#include "lib/log.h" /* for zlog_warn, zlog_debug, safe_strerror */ +#include "lib/memory.h" /* for MTYPE_TMP, XCALLOC, XFREE */ +#include "lib/monotime.h" /* for monotime, ONE_DAY_SECOND, ONE_WEE... */ +#include "lib/network.h" /* for set_nonblocking */ +#include "lib/privs.h" /* for zebra_privs_t, ZPRIVS_LOWER, ZPRI... */ +#include "lib/route_types.h" /* for ZEBRA_ROUTE_MAX */ +#include "lib/sockopt.h" /* for setsockopt_so_recvbuf, setsockopt... */ +#include "lib/sockunion.h" /* for sockopt_reuseaddr, sockopt_reuseport */ +#include "lib/stream.h" /* for STREAM_SIZE, stream (ptr only), ... */ +#include "lib/thread.h" /* for thread (ptr only), THREAD_ARG, ... */ +#include "lib/vrf.h" /* for vrf_info_lookup, VRF_DEFAULT */ +#include "lib/vty.h" /* for vty_out, vty (ptr only) */ +#include "lib/zassert.h" /* for assert */ +#include "lib/zclient.h" /* for zmsghdr, ZEBRA_HEADER_SIZE, ZEBRA... */ + +#include "zebra/debug.h" /* for various debugging macros */ +#include "zebra/label_manager.h" /* for release_daemon_label_chunks, rele... */ +#include "zebra/rib.h" /* for rib_score_proto */ +#include "zebra/table_manager.h" /* for release_daemon_table_chunks */ +#include "zebra/zapi_msg.h" /* for zserv_handle_commands */ +#include "zebra/zebra_mpls.h" /* for zebra_mpls_cleanup_fecs_for_client */ +#include "zebra/zebra_pbr.h" /* for zebra_pbr_client_close_cleanup */ +#include "zebra/zebra_ptm.h" /* for zebra_ptm_bfd_client_deregister */ +#include "zebra/zebra_pw.h" /* for zebra_pw_client_close */ +#include "zebra/zebra_rnh.h" /* for zebra_client_cleanup_rnh */ +#include "zebra/zebra_vrf.h" /* for zebra_vrf_lookup_by_id, zvrf */ +#include "zebra/zserv.h" /* for zclient */ /* Event list of zebra. */ enum event { ZEBRA_READ, ZEBRA_WRITE }; @@ -71,7 +72,7 @@ extern struct zebra_privs_t zserv_privs; static void zebra_event(struct zserv *client, enum event event); -/* Public interface ======================================================== */ +/* Public interface --------------------------------------------------------- */ int zebra_server_send_message(struct zserv *client, struct stream *msg) { @@ -80,2931 +81,6 @@ int zebra_server_send_message(struct zserv *client, struct stream *msg) return 0; } -/* Encoding helpers -------------------------------------------------------- */ - -static void zserv_encode_interface(struct stream *s, struct interface *ifp) -{ - /* Interface information. */ - stream_put(s, ifp->name, INTERFACE_NAMSIZ); - stream_putl(s, ifp->ifindex); - stream_putc(s, ifp->status); - stream_putq(s, ifp->flags); - stream_putc(s, ifp->ptm_enable); - stream_putc(s, ifp->ptm_status); - stream_putl(s, ifp->metric); - stream_putl(s, ifp->speed); - stream_putl(s, ifp->mtu); - stream_putl(s, ifp->mtu6); - stream_putl(s, ifp->bandwidth); - stream_putl(s, ifp->ll_type); - stream_putl(s, ifp->hw_addr_len); - if (ifp->hw_addr_len) - stream_put(s, ifp->hw_addr, ifp->hw_addr_len); - - /* Then, Traffic Engineering parameters if any */ - if (HAS_LINK_PARAMS(ifp) && IS_LINK_PARAMS_SET(ifp->link_params)) { - stream_putc(s, 1); - zebra_interface_link_params_write(s, ifp); - } else - stream_putc(s, 0); - - /* Write packet size. */ - stream_putw_at(s, 0, stream_get_endp(s)); -} - -static void zserv_encode_vrf(struct stream *s, struct zebra_vrf *zvrf) -{ - struct vrf_data data; - const char *netns_name = zvrf_ns_name(zvrf); - - data.l.table_id = zvrf->table_id; - - if (netns_name) - strlcpy(data.l.netns_name, basename((char *)netns_name), - NS_NAMSIZ); - else - memset(data.l.netns_name, 0, NS_NAMSIZ); - /* Pass the tableid and the netns NAME */ - stream_put(s, &data, sizeof(struct vrf_data)); - /* Interface information. */ - stream_put(s, zvrf_name(zvrf), VRF_NAMSIZ); - /* Write packet size. */ - stream_putw_at(s, 0, stream_get_endp(s)); -} - -static int zserv_encode_nexthop(struct stream *s, struct nexthop *nexthop) -{ - stream_putc(s, nexthop->type); - switch (nexthop->type) { - case NEXTHOP_TYPE_IPV4: - case NEXTHOP_TYPE_IPV4_IFINDEX: - stream_put_in_addr(s, &nexthop->gate.ipv4); - stream_putl(s, nexthop->ifindex); - break; - case NEXTHOP_TYPE_IPV6: - stream_put(s, &nexthop->gate.ipv6, 16); - break; - case NEXTHOP_TYPE_IPV6_IFINDEX: - stream_put(s, &nexthop->gate.ipv6, 16); - stream_putl(s, nexthop->ifindex); - break; - case NEXTHOP_TYPE_IFINDEX: - stream_putl(s, nexthop->ifindex); - break; - default: - /* do nothing */ - break; - } - return 1; -} - -/* Send handlers ----------------------------------------------------------- */ - -/* Interface is added. Send ZEBRA_INTERFACE_ADD to client. */ -/* - * This function is called in the following situations: - * - in response to a 3-byte ZEBRA_INTERFACE_ADD request - * from the client. - * - at startup, when zebra figures out the available interfaces - * - when an interface is added (where support for - * RTM_IFANNOUNCE or AF_NETLINK sockets is available), or when - * an interface is marked IFF_UP (i.e., an RTM_IFINFO message is - * received) - */ -int zsend_interface_add(struct zserv *client, struct interface *ifp) -{ - struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); - - zclient_create_header(s, ZEBRA_INTERFACE_ADD, ifp->vrf_id); - zserv_encode_interface(s, ifp); - - client->ifadd_cnt++; - return zebra_server_send_message(client, s); -} - -/* Interface deletion from zebra daemon. */ -int zsend_interface_delete(struct zserv *client, struct interface *ifp) -{ - struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); - - zclient_create_header(s, ZEBRA_INTERFACE_DELETE, ifp->vrf_id); - zserv_encode_interface(s, ifp); - - client->ifdel_cnt++; - return zebra_server_send_message(client, s); -} - -int zsend_vrf_add(struct zserv *client, struct zebra_vrf *zvrf) -{ - struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); - - zclient_create_header(s, ZEBRA_VRF_ADD, zvrf_id(zvrf)); - zserv_encode_vrf(s, zvrf); - - client->vrfadd_cnt++; - return zebra_server_send_message(client, s); -} - -/* VRF deletion from zebra daemon. */ -int zsend_vrf_delete(struct zserv *client, struct zebra_vrf *zvrf) - -{ - struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); - - zclient_create_header(s, ZEBRA_VRF_DELETE, zvrf_id(zvrf)); - zserv_encode_vrf(s, zvrf); - - client->vrfdel_cnt++; - return zebra_server_send_message(client, s); -} - -int zsend_interface_link_params(struct zserv *client, struct interface *ifp) -{ - struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); - - /* Check this client need interface information. */ - if (!client->ifinfo) { - stream_free(s); - return 0; - } - - if (!ifp->link_params) { - stream_free(s); - return 0; - } - - zclient_create_header(s, ZEBRA_INTERFACE_LINK_PARAMS, ifp->vrf_id); - - /* Add Interface Index */ - stream_putl(s, ifp->ifindex); - - /* Then TE Link Parameters */ - if (zebra_interface_link_params_write(s, ifp) == 0) { - stream_free(s); - return 0; - } - - /* Write packet size. */ - stream_putw_at(s, 0, stream_get_endp(s)); - - return zebra_server_send_message(client, s); -} - -/* Interface address is added/deleted. Send ZEBRA_INTERFACE_ADDRESS_ADD or - * ZEBRA_INTERFACE_ADDRESS_DELETE to the client. - * - * A ZEBRA_INTERFACE_ADDRESS_ADD is sent in the following situations: - * - in response to a 3-byte ZEBRA_INTERFACE_ADD request - * from the client, after the ZEBRA_INTERFACE_ADD has been - * sent from zebra to the client - * - redistribute new address info to all clients in the following situations - * - at startup, when zebra figures out the available interfaces - * - when an interface is added (where support for - * RTM_IFANNOUNCE or AF_NETLINK sockets is available), or when - * an interface is marked IFF_UP (i.e., an RTM_IFINFO message is - * received) - * - for the vty commands "ip address A.B.C.D/M [<secondary>|<label LINE>]" - * and "no bandwidth <1-10000000>", "ipv6 address X:X::X:X/M" - * - when an RTM_NEWADDR message is received from the kernel, - * - * The call tree that triggers ZEBRA_INTERFACE_ADDRESS_DELETE: - * - * zsend_interface_address(DELETE) - * ^ - * | - * zebra_interface_address_delete_update - * ^ ^ ^ - * | | if_delete_update - * | | - * ip_address_uninstall connected_delete_ipv4 - * [ipv6_addresss_uninstall] [connected_delete_ipv6] - * ^ ^ - * | | - * | RTM_NEWADDR on routing/netlink socket - * | - * vty commands: - * "no ip address A.B.C.D/M [label LINE]" - * "no ip address A.B.C.D/M secondary" - * ["no ipv6 address X:X::X:X/M"] - * - */ -int zsend_interface_address(int cmd, struct zserv *client, - struct interface *ifp, struct connected *ifc) -{ - int blen; - struct prefix *p; - struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); - - zclient_create_header(s, cmd, ifp->vrf_id); - stream_putl(s, ifp->ifindex); - - /* Interface address flag. */ - stream_putc(s, ifc->flags); - - /* Prefix information. */ - p = ifc->address; - stream_putc(s, p->family); - blen = prefix_blen(p); - stream_put(s, &p->u.prefix, blen); - - /* - * XXX gnu version does not send prefixlen for - * ZEBRA_INTERFACE_ADDRESS_DELETE - * but zebra_interface_address_delete_read() in the gnu version - * expects to find it - */ - stream_putc(s, p->prefixlen); - - /* Destination. */ - p = ifc->destination; - if (p) - stream_put(s, &p->u.prefix, blen); - else - stream_put(s, NULL, blen); - - /* Write packet size. */ - stream_putw_at(s, 0, stream_get_endp(s)); - - client->connected_rt_add_cnt++; - return zebra_server_send_message(client, s); -} - -static int zsend_interface_nbr_address(int cmd, struct zserv *client, - struct interface *ifp, - struct nbr_connected *ifc) -{ - int blen; - struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); - struct prefix *p; - - zclient_create_header(s, cmd, ifp->vrf_id); - stream_putl(s, ifp->ifindex); - - /* Prefix information. */ - p = ifc->address; - stream_putc(s, p->family); - blen = prefix_blen(p); - stream_put(s, &p->u.prefix, blen); - - /* - * XXX gnu version does not send prefixlen for - * ZEBRA_INTERFACE_ADDRESS_DELETE - * but zebra_interface_address_delete_read() in the gnu version - * expects to find it - */ - stream_putc(s, p->prefixlen); - - /* Write packet size. */ - stream_putw_at(s, 0, stream_get_endp(s)); - - return zebra_server_send_message(client, s); -} - -/* Interface address addition. */ -static void zebra_interface_nbr_address_add_update(struct interface *ifp, - struct nbr_connected *ifc) -{ - struct listnode *node, *nnode; - struct zserv *client; - struct prefix *p; - - if (IS_ZEBRA_DEBUG_EVENT) { - char buf[INET6_ADDRSTRLEN]; - - p = ifc->address; - zlog_debug( - "MESSAGE: ZEBRA_INTERFACE_NBR_ADDRESS_ADD %s/%d on %s", - inet_ntop(p->family, &p->u.prefix, buf, - INET6_ADDRSTRLEN), - p->prefixlen, ifc->ifp->name); - } - - for (ALL_LIST_ELEMENTS(zebrad.client_list, node, nnode, client)) - zsend_interface_nbr_address(ZEBRA_INTERFACE_NBR_ADDRESS_ADD, - client, ifp, ifc); -} - -/* Interface address deletion. */ -static void zebra_interface_nbr_address_delete_update(struct interface *ifp, - struct nbr_connected *ifc) -{ - struct listnode *node, *nnode; - struct zserv *client; - struct prefix *p; - - if (IS_ZEBRA_DEBUG_EVENT) { - char buf[INET6_ADDRSTRLEN]; - - p = ifc->address; - zlog_debug( - "MESSAGE: ZEBRA_INTERFACE_NBR_ADDRESS_DELETE %s/%d on %s", - inet_ntop(p->family, &p->u.prefix, buf, - INET6_ADDRSTRLEN), - p->prefixlen, ifc->ifp->name); - } - - for (ALL_LIST_ELEMENTS(zebrad.client_list, node, nnode, client)) - zsend_interface_nbr_address(ZEBRA_INTERFACE_NBR_ADDRESS_DELETE, - client, ifp, ifc); -} - -/* Send addresses on interface to client */ -int zsend_interface_addresses(struct zserv *client, struct interface *ifp) -{ - struct listnode *cnode, *cnnode; - struct connected *c; - struct nbr_connected *nc; - - /* Send interface addresses. */ - for (ALL_LIST_ELEMENTS(ifp->connected, cnode, cnnode, c)) { - if (!CHECK_FLAG(c->conf, ZEBRA_IFC_REAL)) - continue; - - if (zsend_interface_address(ZEBRA_INTERFACE_ADDRESS_ADD, client, - ifp, c) - < 0) - return -1; - } - - /* Send interface neighbors. */ - for (ALL_LIST_ELEMENTS(ifp->nbr_connected, cnode, cnnode, nc)) { - if (zsend_interface_nbr_address(ZEBRA_INTERFACE_NBR_ADDRESS_ADD, - client, ifp, nc) - < 0) - return -1; - } - - return 0; -} - -/* Notify client about interface moving from one VRF to another. - * Whether client is interested in old and new VRF is checked by caller. - */ -int zsend_interface_vrf_update(struct zserv *client, struct interface *ifp, - vrf_id_t vrf_id) -{ - struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); - - zclient_create_header(s, ZEBRA_INTERFACE_VRF_UPDATE, ifp->vrf_id); - - /* Fill in the ifIndex of the interface and its new VRF (id) */ - stream_putl(s, ifp->ifindex); - stream_putl(s, vrf_id); - - /* Write packet size. */ - stream_putw_at(s, 0, stream_get_endp(s)); - - client->if_vrfchg_cnt++; - return zebra_server_send_message(client, s); -} - -/* Add new nbr connected IPv6 address */ -void nbr_connected_add_ipv6(struct interface *ifp, struct in6_addr *address) -{ - struct nbr_connected *ifc; - struct prefix p; - - p.family = AF_INET6; - IPV6_ADDR_COPY(&p.u.prefix, address); - p.prefixlen = IPV6_MAX_PREFIXLEN; - - if (!(ifc = listnode_head(ifp->nbr_connected))) { - /* new addition */ - ifc = nbr_connected_new(); - ifc->address = prefix_new(); - ifc->ifp = ifp; - listnode_add(ifp->nbr_connected, ifc); - } - - prefix_copy(ifc->address, &p); - - zebra_interface_nbr_address_add_update(ifp, ifc); - - if_nbr_ipv6ll_to_ipv4ll_neigh_update(ifp, address, 1); -} - -void nbr_connected_delete_ipv6(struct interface *ifp, struct in6_addr *address) -{ - struct nbr_connected *ifc; - struct prefix p; - - p.family = AF_INET6; - IPV6_ADDR_COPY(&p.u.prefix, address); - p.prefixlen = IPV6_MAX_PREFIXLEN; - - ifc = nbr_connected_check(ifp, &p); - if (!ifc) - return; - - listnode_delete(ifp->nbr_connected, ifc); - - zebra_interface_nbr_address_delete_update(ifp, ifc); - - if_nbr_ipv6ll_to_ipv4ll_neigh_update(ifp, address, 0); - - nbr_connected_free(ifc); -} - -/* - * The cmd passed to zsend_interface_update may be ZEBRA_INTERFACE_UP or - * ZEBRA_INTERFACE_DOWN. - * - * The ZEBRA_INTERFACE_UP message is sent from the zebra server to - * the clients in one of 2 situations: - * - an if_up is detected e.g., as a result of an RTM_IFINFO message - * - a vty command modifying the bandwidth of an interface is received. - * The ZEBRA_INTERFACE_DOWN message is sent when an if_down is detected. - */ -int zsend_interface_update(int cmd, struct zserv *client, struct interface *ifp) -{ - struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); - - zclient_create_header(s, cmd, ifp->vrf_id); - zserv_encode_interface(s, ifp); - - if (cmd == ZEBRA_INTERFACE_UP) - client->ifup_cnt++; - else - client->ifdown_cnt++; - - return zebra_server_send_message(client, s); -} - -int zsend_redistribute_route(int cmd, struct zserv *client, struct prefix *p, - struct prefix *src_p, struct route_entry *re) -{ - struct zapi_route api; - struct zapi_nexthop *api_nh; - struct nexthop *nexthop; - int count = 0; - - memset(&api, 0, sizeof(api)); - api.vrf_id = re->vrf_id; - api.type = re->type; - api.instance = re->instance; - api.flags = re->flags; - - /* Prefix. */ - api.prefix = *p; - if (src_p) { - SET_FLAG(api.message, ZAPI_MESSAGE_SRCPFX); - memcpy(&api.src_prefix, src_p, sizeof(api.src_prefix)); - } - - /* Nexthops. */ - if (re->nexthop_active_num) { - SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP); - api.nexthop_num = re->nexthop_active_num; - } - for (nexthop = re->ng.nexthop; nexthop; nexthop = nexthop->next) { - if (!CHECK_FLAG(nexthop->flags, NEXTHOP_FLAG_ACTIVE)) - continue; - - api_nh = &api.nexthops[count]; - api_nh->vrf_id = nexthop->vrf_id; - api_nh->type = nexthop->type; - switch (nexthop->type) { - case NEXTHOP_TYPE_BLACKHOLE: - api_nh->bh_type = nexthop->bh_type; - break; - case NEXTHOP_TYPE_IPV4: - api_nh->gate.ipv4 = nexthop->gate.ipv4; - break; - case NEXTHOP_TYPE_IPV4_IFINDEX: - api_nh->gate.ipv4 = nexthop->gate.ipv4; - api_nh->ifindex = nexthop->ifindex; - break; - case NEXTHOP_TYPE_IFINDEX: - api_nh->ifindex = nexthop->ifindex; - break; - case NEXTHOP_TYPE_IPV6: - api_nh->gate.ipv6 = nexthop->gate.ipv6; - break; - case NEXTHOP_TYPE_IPV6_IFINDEX: - api_nh->gate.ipv6 = nexthop->gate.ipv6; - api_nh->ifindex = nexthop->ifindex; - } - count++; - } - - /* Attributes. */ - SET_FLAG(api.message, ZAPI_MESSAGE_DISTANCE); - api.distance = re->distance; - SET_FLAG(api.message, ZAPI_MESSAGE_METRIC); - api.metric = re->metric; - if (re->tag) { - SET_FLAG(api.message, ZAPI_MESSAGE_TAG); - api.tag = re->tag; - } - SET_FLAG(api.message, ZAPI_MESSAGE_MTU); - api.mtu = re->mtu; - - struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); - - /* Encode route and send. */ - if (zapi_route_encode(cmd, s, &api) < 0) { - stream_free(s); - return -1; - } - - if (IS_ZEBRA_DEBUG_SEND) { - char buf_prefix[PREFIX_STRLEN]; - prefix2str(&api.prefix, buf_prefix, sizeof(buf_prefix)); - - zlog_debug("%s: %s to client %s: type %s, vrf_id %d, p %s", - __func__, zserv_command_string(cmd), - zebra_route_string(client->proto), - zebra_route_string(api.type), api.vrf_id, - buf_prefix); - } - return zebra_server_send_message(client, s); -} - -/* - * Modified version of zsend_ipv4_nexthop_lookup(): Query unicast rib if - * nexthop is not found on mrib. Returns both route metric and protocol - * distance. - */ -static int zsend_ipv4_nexthop_lookup_mrib(struct zserv *client, - struct in_addr addr, - struct route_entry *re, - struct zebra_vrf *zvrf) -{ - struct stream *s; - unsigned long nump; - uint8_t num; - struct nexthop *nexthop; - - /* Get output stream. */ - s = stream_new(ZEBRA_MAX_PACKET_SIZ); - stream_reset(s); - - /* Fill in result. */ - zclient_create_header(s, ZEBRA_IPV4_NEXTHOP_LOOKUP_MRIB, zvrf_id(zvrf)); - stream_put_in_addr(s, &addr); - - if (re) { - stream_putc(s, re->distance); - stream_putl(s, re->metric); - num = 0; - nump = stream_get_endp( - s); /* remember position for nexthop_num */ - stream_putc(s, 0); /* reserve room for nexthop_num */ - /* Only non-recursive routes are elegible to resolve the nexthop - * we - * are looking up. Therefore, we will just iterate over the top - * chain of nexthops. */ - for (nexthop = re->ng.nexthop; nexthop; nexthop = nexthop->next) - if (CHECK_FLAG(nexthop->flags, NEXTHOP_FLAG_ACTIVE)) - num += zserv_encode_nexthop(s, nexthop); - - stream_putc_at(s, nump, num); /* store nexthop_num */ - } else { - stream_putc(s, 0); /* distance */ - stream_putl(s, 0); /* metric */ - stream_putc(s, 0); /* nexthop_num */ - } - - stream_putw_at(s, 0, stream_get_endp(s)); - - return zebra_server_send_message(client, s); -} - -int zsend_route_notify_owner(struct route_entry *re, struct prefix *p, - enum zapi_route_notify_owner note) -{ - struct zserv *client; - struct stream *s; - uint8_t blen; - - client = zebra_find_client(re->type, re->instance); - if (!client || !client->notify_owner) { - if (IS_ZEBRA_DEBUG_PACKET) { - char buff[PREFIX_STRLEN]; - - zlog_debug( - "Not Notifying Owner: %u about prefix %s(%u) %d vrf: %u", - re->type, prefix2str(p, buff, sizeof(buff)), - re->table, note, re->vrf_id); - } - return 0; - } - - if (IS_ZEBRA_DEBUG_PACKET) { - char buff[PREFIX_STRLEN]; - - zlog_debug("Notifying Owner: %u about prefix %s(%u) %d vrf: %u", - re->type, prefix2str(p, buff, sizeof(buff)), - re->table, note, re->vrf_id); - } - - s = stream_new(ZEBRA_MAX_PACKET_SIZ); - stream_reset(s); - - zclient_create_header(s, ZEBRA_ROUTE_NOTIFY_OWNER, re->vrf_id); - - stream_put(s, ¬e, sizeof(note)); - - stream_putc(s, p->family); - - blen = prefix_blen(p); - stream_putc(s, p->prefixlen); - stream_put(s, &p->u.prefix, blen); - - stream_putl(s, re->table); - - stream_putw_at(s, 0, stream_get_endp(s)); - - return zebra_server_send_message(client, s); -} - -void zsend_rule_notify_owner(struct zebra_pbr_rule *rule, - enum zapi_rule_notify_owner note) -{ - struct listnode *node; - struct zserv *client; - struct stream *s; - - if (IS_ZEBRA_DEBUG_PACKET) - zlog_debug("%s: Notifying %u", __PRETTY_FUNCTION__, - rule->rule.unique); - - for (ALL_LIST_ELEMENTS_RO(zebrad.client_list, node, client)) { - if (rule->sock == client->sock) - break; - } - - if (!client) - return; - - s = stream_new(ZEBRA_MAX_PACKET_SIZ); - - zclient_create_header(s, ZEBRA_RULE_NOTIFY_OWNER, VRF_DEFAULT); - stream_put(s, ¬e, sizeof(note)); - stream_putl(s, rule->rule.seq); - stream_putl(s, rule->rule.priority); - stream_putl(s, rule->rule.unique); - if (rule->ifp) - stream_putl(s, rule->ifp->ifindex); - else - stream_putl(s, 0); - - stream_putw_at(s, 0, stream_get_endp(s)); - - zebra_server_send_message(client, s); -} - -void zsend_ipset_notify_owner(struct zebra_pbr_ipset *ipset, - enum zapi_ipset_notify_owner note) -{ - struct listnode *node; - struct zserv *client; - struct stream *s; - - if (IS_ZEBRA_DEBUG_PACKET) - zlog_debug("%s: Notifying %u", __PRETTY_FUNCTION__, - ipset->unique); - - for (ALL_LIST_ELEMENTS_RO(zebrad.client_list, node, client)) { - if (ipset->sock == client->sock) - break; - } - - if (!client) - return; - - s = stream_new(ZEBRA_MAX_PACKET_SIZ); - - zclient_create_header(s, ZEBRA_IPSET_NOTIFY_OWNER, VRF_DEFAULT); - stream_put(s, ¬e, sizeof(note)); - stream_putl(s, ipset->unique); - stream_put(s, ipset->ipset_name, ZEBRA_IPSET_NAME_SIZE); - stream_putw_at(s, 0, stream_get_endp(s)); - - zebra_server_send_message(client, s); -} - -void zsend_ipset_entry_notify_owner( - struct zebra_pbr_ipset_entry *ipset, - enum zapi_ipset_entry_notify_owner note) -{ - struct listnode *node; - struct zserv *client; - struct stream *s; - - if (IS_ZEBRA_DEBUG_PACKET) - zlog_debug("%s: Notifying %u", __PRETTY_FUNCTION__, - ipset->unique); - - for (ALL_LIST_ELEMENTS_RO(zebrad.client_list, node, client)) { - if (ipset->sock == client->sock) - break; - } - - if (!client) - return; - - s = stream_new(ZEBRA_MAX_PACKET_SIZ); - - zclient_create_header(s, ZEBRA_IPSET_ENTRY_NOTIFY_OWNER, - VRF_DEFAULT); - stream_put(s, ¬e, sizeof(note)); - stream_putl(s, ipset->unique); - stream_put(s, ipset->backpointer->ipset_name, - ZEBRA_IPSET_NAME_SIZE); - stream_putw_at(s, 0, stream_get_endp(s)); - - zebra_server_send_message(client, s); -} - -void zsend_iptable_notify_owner(struct zebra_pbr_iptable *iptable, - enum zapi_iptable_notify_owner note) -{ - struct listnode *node; - struct zserv *client; - struct stream *s; - - if (IS_ZEBRA_DEBUG_PACKET) - zlog_debug("%s: Notifying %u", __PRETTY_FUNCTION__, - iptable->unique); - - for (ALL_LIST_ELEMENTS_RO(zebrad.client_list, node, client)) { - if (iptable->sock == client->sock) - break; - } - - if (!client) - return; - - s = stream_new(ZEBRA_MAX_PACKET_SIZ); - - zclient_create_header(s, ZEBRA_IPTABLE_NOTIFY_OWNER, VRF_DEFAULT); - stream_put(s, ¬e, sizeof(note)); - stream_putl(s, iptable->unique); - stream_putw_at(s, 0, stream_get_endp(s)); - - zebra_server_send_message(client, s); -} - -/* Router-id is updated. Send ZEBRA_ROUTER_ID_ADD to client. */ -int zsend_router_id_update(struct zserv *client, struct prefix *p, - vrf_id_t vrf_id) -{ - int blen; - - /* Check this client need interface information. */ - if (!vrf_bitmap_check(client->ridinfo, vrf_id)) - return 0; - - struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); - - /* Message type. */ - zclient_create_header(s, ZEBRA_ROUTER_ID_UPDATE, vrf_id); - - /* Prefix information. */ - stream_putc(s, p->family); - blen = prefix_blen(p); - stream_put(s, &p->u.prefix, blen); - stream_putc(s, p->prefixlen); - - /* Write packet size. */ - stream_putw_at(s, 0, stream_get_endp(s)); - - return zebra_server_send_message(client, s); -} - -/* - * Function used by Zebra to send a PW status update to LDP daemon - */ -int zsend_pw_update(struct zserv *client, struct zebra_pw *pw) -{ - struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); - - zclient_create_header(s, ZEBRA_PW_STATUS_UPDATE, pw->vrf_id); - stream_write(s, pw->ifname, IF_NAMESIZE); - stream_putl(s, pw->ifindex); - stream_putl(s, pw->status); - - /* Put length at the first point of the stream. */ - stream_putw_at(s, 0, stream_get_endp(s)); - - return zebra_server_send_message(client, s); -} - -/* Send response to a get label chunk request to client */ -static int zsend_assign_label_chunk_response(struct zserv *client, - vrf_id_t vrf_id, - struct label_manager_chunk *lmc) -{ - int ret; - struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); - - zclient_create_header(s, ZEBRA_GET_LABEL_CHUNK, vrf_id); - - if (lmc) { - /* keep */ - stream_putc(s, lmc->keep); - /* start and end labels */ - stream_putl(s, lmc->start); - stream_putl(s, lmc->end); - } - - /* Write packet size. */ - stream_putw_at(s, 0, stream_get_endp(s)); - - ret = writen(client->sock, s->data, stream_get_endp(s)); - stream_free(s); - return ret; -} - -/* Send response to a label manager connect request to client */ -static int zsend_label_manager_connect_response(struct zserv *client, - vrf_id_t vrf_id, - unsigned short result) -{ - int ret; - struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); - - zclient_create_header(s, ZEBRA_LABEL_MANAGER_CONNECT, vrf_id); - - /* result */ - stream_putc(s, result); - - /* Write packet size. */ - stream_putw_at(s, 0, stream_get_endp(s)); - - ret = writen(client->sock, s->data, stream_get_endp(s)); - stream_free(s); - - return ret; -} - -/* Inbound message handling ------------------------------------------------ */ - -int cmd2type[] = { - [ZEBRA_NEXTHOP_REGISTER] = RNH_NEXTHOP_TYPE, - [ZEBRA_NEXTHOP_UNREGISTER] = RNH_NEXTHOP_TYPE, - [ZEBRA_IMPORT_ROUTE_REGISTER] = RNH_IMPORT_CHECK_TYPE, - [ZEBRA_IMPORT_ROUTE_UNREGISTER] = RNH_IMPORT_CHECK_TYPE, -}; - -/* Nexthop register */ -static void zread_rnh_register(ZAPI_HANDLER_ARGS) -{ - struct rnh *rnh; - struct stream *s; - struct prefix p; - unsigned short l = 0; - uint8_t flags = 0; - uint16_t type = cmd2type[hdr->command]; - - if (IS_ZEBRA_DEBUG_NHT) - zlog_debug( - "rnh_register msg from client %s: hdr->length=%d, type=%s vrf=%u\n", - zebra_route_string(client->proto), hdr->length, - (type == RNH_NEXTHOP_TYPE) ? "nexthop" : "route", - zvrf->vrf->vrf_id); - - s = msg; - - client->nh_reg_time = monotime(NULL); - - while (l < hdr->length) { - STREAM_GETC(s, flags); - STREAM_GETW(s, p.family); - STREAM_GETC(s, p.prefixlen); - l += 4; - if (p.family == AF_INET) { - if (p.prefixlen > IPV4_MAX_BITLEN) { - zlog_warn( - "%s: Specified prefix hdr->length %d is too large for a v4 address", - __PRETTY_FUNCTION__, p.prefixlen); - return; - } - STREAM_GET(&p.u.prefix4.s_addr, s, IPV4_MAX_BYTELEN); - l += IPV4_MAX_BYTELEN; - } else if (p.family == AF_INET6) { - if (p.prefixlen > IPV6_MAX_BITLEN) { - zlog_warn( - "%s: Specified prefix hdr->length %d is to large for a v6 address", - __PRETTY_FUNCTION__, p.prefixlen); - return; - } - STREAM_GET(&p.u.prefix6, s, IPV6_MAX_BYTELEN); - l += IPV6_MAX_BYTELEN; - } else { - zlog_err( - "rnh_register: Received unknown family type %d\n", - p.family); - return; - } - rnh = zebra_add_rnh(&p, zvrf_id(zvrf), type); - if (type == RNH_NEXTHOP_TYPE) { - if (flags - && !CHECK_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED)) - SET_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED); - else if (!flags - && CHECK_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED)) - UNSET_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED); - } else if (type == RNH_IMPORT_CHECK_TYPE) { - if (flags - && !CHECK_FLAG(rnh->flags, ZEBRA_NHT_EXACT_MATCH)) - SET_FLAG(rnh->flags, ZEBRA_NHT_EXACT_MATCH); - else if (!flags - && CHECK_FLAG(rnh->flags, - ZEBRA_NHT_EXACT_MATCH)) - UNSET_FLAG(rnh->flags, ZEBRA_NHT_EXACT_MATCH); - } - - zebra_add_rnh_client(rnh, client, type, zvrf_id(zvrf)); - /* Anything not AF_INET/INET6 has been filtered out above */ - zebra_evaluate_rnh(zvrf_id(zvrf), p.family, 1, type, &p); - } - -stream_failure: - return; -} - -/* Nexthop register */ -static void zread_rnh_unregister(ZAPI_HANDLER_ARGS) -{ - struct rnh *rnh; - struct stream *s; - struct prefix p; - unsigned short l = 0; - uint16_t type = cmd2type[hdr->command]; - - if (IS_ZEBRA_DEBUG_NHT) - zlog_debug( - "rnh_unregister msg from client %s: hdr->length=%d vrf: %u\n", - zebra_route_string(client->proto), hdr->length, - zvrf->vrf->vrf_id); - - s = msg; - - while (l < hdr->length) { - uint8_t flags; - - STREAM_GETC(s, flags); - if (flags != 0) - goto stream_failure; - - STREAM_GETW(s, p.family); - STREAM_GETC(s, p.prefixlen); - l += 4; - if (p.family == AF_INET) { - if (p.prefixlen > IPV4_MAX_BITLEN) { - zlog_warn( - "%s: Specified prefix hdr->length %d is to large for a v4 address", - __PRETTY_FUNCTION__, p.prefixlen); - return; - } - STREAM_GET(&p.u.prefix4.s_addr, s, IPV4_MAX_BYTELEN); - l += IPV4_MAX_BYTELEN; - } else if (p.family == AF_INET6) { - if (p.prefixlen > IPV6_MAX_BITLEN) { - zlog_warn( - "%s: Specified prefix hdr->length %d is to large for a v6 address", - __PRETTY_FUNCTION__, p.prefixlen); - return; - } - STREAM_GET(&p.u.prefix6, s, IPV6_MAX_BYTELEN); - l += IPV6_MAX_BYTELEN; - } else { - zlog_err( - "rnh_register: Received unknown family type %d\n", - p.family); - return; - } - rnh = zebra_lookup_rnh(&p, zvrf_id(zvrf), type); - if (rnh) { - client->nh_dereg_time = monotime(NULL); - zebra_remove_rnh_client(rnh, client, type); - } - } -stream_failure: - return; -} - -#define ZEBRA_MIN_FEC_LENGTH 5 - -/* FEC register */ -static void zread_fec_register(ZAPI_HANDLER_ARGS) -{ - struct stream *s; - unsigned short l = 0; - struct prefix p; - uint16_t flags; - uint32_t label_index = MPLS_INVALID_LABEL_INDEX; - - s = msg; - zvrf = vrf_info_lookup(VRF_DEFAULT); - if (!zvrf) - return; // unexpected - - /* - * The minimum amount of data that can be sent for one fec - * registration - */ - if (hdr->length < ZEBRA_MIN_FEC_LENGTH) { - zlog_err( - "fec_register: Received a fec register of hdr->length %d, it is of insufficient size to properly decode", - hdr->length); - return; - } - - while (l < hdr->length) { - STREAM_GETW(s, flags); - memset(&p, 0, sizeof(p)); - STREAM_GETW(s, p.family); - if (p.family != AF_INET && p.family != AF_INET6) { - zlog_err( - "fec_register: Received unknown family type %d\n", - p.family); - return; - } - STREAM_GETC(s, p.prefixlen); - if ((p.family == AF_INET && p.prefixlen > IPV4_MAX_BITLEN) - || (p.family == AF_INET6 - && p.prefixlen > IPV6_MAX_BITLEN)) { - zlog_warn( - "%s: Specified prefix hdr->length: %d is to long for %d", - __PRETTY_FUNCTION__, p.prefixlen, p.family); - return; - } - l += 5; - STREAM_GET(&p.u.prefix, s, PSIZE(p.prefixlen)); - l += PSIZE(p.prefixlen); - if (flags & ZEBRA_FEC_REGISTER_LABEL_INDEX) { - STREAM_GETL(s, label_index); - l += 4; - } else - label_index = MPLS_INVALID_LABEL_INDEX; - zebra_mpls_fec_register(zvrf, &p, label_index, client); - } - -stream_failure: - return; -} - -/* FEC unregister */ -static void zread_fec_unregister(ZAPI_HANDLER_ARGS) -{ - struct stream *s; - unsigned short l = 0; - struct prefix p; - uint16_t flags; - - s = msg; - zvrf = vrf_info_lookup(VRF_DEFAULT); - if (!zvrf) - return; // unexpected - - /* - * The minimum amount of data that can be sent for one - * fec unregistration - */ - if (hdr->length < ZEBRA_MIN_FEC_LENGTH) { - zlog_err( - "fec_unregister: Received a fec unregister of hdr->length %d, it is of insufficient size to properly decode", - hdr->length); - return; - } - - while (l < hdr->length) { - STREAM_GETW(s, flags); - if (flags != 0) - goto stream_failure; - - memset(&p, 0, sizeof(p)); - STREAM_GETW(s, p.family); - if (p.family != AF_INET && p.family != AF_INET6) { - zlog_err( - "fec_unregister: Received unknown family type %d\n", - p.family); - return; - } - STREAM_GETC(s, p.prefixlen); - if ((p.family == AF_INET && p.prefixlen > IPV4_MAX_BITLEN) - || (p.family == AF_INET6 - && p.prefixlen > IPV6_MAX_BITLEN)) { - zlog_warn( - "%s: Received prefix hdr->length %d which is greater than %d can support", - __PRETTY_FUNCTION__, p.prefixlen, p.family); - return; - } - l += 5; - STREAM_GET(&p.u.prefix, s, PSIZE(p.prefixlen)); - l += PSIZE(p.prefixlen); - zebra_mpls_fec_unregister(zvrf, &p, client); - } - -stream_failure: - return; -} - - -/* - * Register zebra server interface information. - * Send current all interface and address information. - */ -static void zread_interface_add(ZAPI_HANDLER_ARGS) -{ - struct vrf *vrf; - struct interface *ifp; - - /* Interface information is needed. */ - vrf_bitmap_set(client->ifinfo, zvrf_id(zvrf)); - - RB_FOREACH (vrf, vrf_id_head, &vrfs_by_id) { - FOR_ALL_INTERFACES (vrf, ifp) { - /* Skip pseudo interface. */ - if (!CHECK_FLAG(ifp->status, ZEBRA_INTERFACE_ACTIVE)) - continue; - - zsend_interface_add(client, ifp); - zsend_interface_addresses(client, ifp); - } - } -} - -/* Unregister zebra server interface information. */ -static void zread_interface_delete(ZAPI_HANDLER_ARGS) -{ - vrf_bitmap_unset(client->ifinfo, zvrf_id(zvrf)); -} - -void zserv_nexthop_num_warn(const char *caller, const struct prefix *p, - const unsigned int nexthop_num) -{ - if (nexthop_num > multipath_num) { - char buff[PREFIX2STR_BUFFER]; - prefix2str(p, buff, sizeof(buff)); - zlog_warn( - "%s: Prefix %s has %d nexthops, but we can only use the first %d", - caller, buff, nexthop_num, multipath_num); - } -} - -static void zread_route_add(ZAPI_HANDLER_ARGS) -{ - struct stream *s; - struct zapi_route api; - struct zapi_nexthop *api_nh; - afi_t afi; - struct prefix_ipv6 *src_p = NULL; - struct route_entry *re; - struct nexthop *nexthop = NULL; - int i, ret; - vrf_id_t vrf_id = 0; - struct ipaddr vtep_ip; - - s = msg; - if (zapi_route_decode(s, &api) < 0) { - if (IS_ZEBRA_DEBUG_RECV) - zlog_debug("%s: Unable to decode zapi_route sent", - __PRETTY_FUNCTION__); - return; - } - - if (IS_ZEBRA_DEBUG_RECV) { - char buf_prefix[PREFIX_STRLEN]; - prefix2str(&api.prefix, buf_prefix, sizeof(buf_prefix)); - zlog_debug("%s: p=%s, ZAPI_MESSAGE_LABEL: %sset, flags=0x%x", - __func__, buf_prefix, - (CHECK_FLAG(api.message, ZAPI_MESSAGE_LABEL) ? "" - : "un"), - api.flags); - } - - /* Allocate new route. */ - vrf_id = zvrf_id(zvrf); - re = XCALLOC(MTYPE_RE, sizeof(struct route_entry)); - re->type = api.type; - re->instance = api.instance; - re->flags = api.flags; - re->uptime = time(NULL); - re->vrf_id = vrf_id; - if (api.tableid && vrf_id == VRF_DEFAULT) - re->table = api.tableid; - else - re->table = zvrf->table_id; - - /* - * TBD should _all_ of the nexthop add operations use - * api_nh->vrf_id instead of re->vrf_id ? I only changed - * for cases NEXTHOP_TYPE_IPV4 and NEXTHOP_TYPE_IPV6. - */ - if (CHECK_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP)) { - for (i = 0; i < api.nexthop_num; i++) { - api_nh = &api.nexthops[i]; - ifindex_t ifindex = 0; - - if (IS_ZEBRA_DEBUG_RECV) { - zlog_debug("nh type %d", api_nh->type); - } - - switch (api_nh->type) { - case NEXTHOP_TYPE_IFINDEX: - nexthop = route_entry_nexthop_ifindex_add( - re, api_nh->ifindex, api_nh->vrf_id); - break; - case NEXTHOP_TYPE_IPV4: - if (IS_ZEBRA_DEBUG_RECV) { - char nhbuf[INET6_ADDRSTRLEN] = {0}; - inet_ntop(AF_INET, &api_nh->gate.ipv4, - nhbuf, INET6_ADDRSTRLEN); - zlog_debug("%s: nh=%s, vrf_id=%d", - __func__, nhbuf, - api_nh->vrf_id); - } - nexthop = route_entry_nexthop_ipv4_add( - re, &api_nh->gate.ipv4, NULL, - api_nh->vrf_id); - break; - case NEXTHOP_TYPE_IPV4_IFINDEX: - - memset(&vtep_ip, 0, sizeof(struct ipaddr)); - if (CHECK_FLAG(api.flags, - ZEBRA_FLAG_EVPN_ROUTE)) { - ifindex = get_l3vni_svi_ifindex(vrf_id); - } else { - ifindex = api_nh->ifindex; - } - - if (IS_ZEBRA_DEBUG_RECV) { - char nhbuf[INET6_ADDRSTRLEN] = {0}; - inet_ntop(AF_INET, &api_nh->gate.ipv4, - nhbuf, INET6_ADDRSTRLEN); - zlog_debug( - "%s: nh=%s, vrf_id=%d (re->vrf_id=%d), ifindex=%d", - __func__, nhbuf, api_nh->vrf_id, - re->vrf_id, ifindex); - } - nexthop = route_entry_nexthop_ipv4_ifindex_add( - re, &api_nh->gate.ipv4, NULL, ifindex, - api_nh->vrf_id); - - /* if this an EVPN route entry, - * program the nh as neigh - */ - if (CHECK_FLAG(api.flags, - ZEBRA_FLAG_EVPN_ROUTE)) { - SET_FLAG(nexthop->flags, - NEXTHOP_FLAG_EVPN_RVTEP); - vtep_ip.ipa_type = IPADDR_V4; - memcpy(&(vtep_ip.ipaddr_v4), - &(api_nh->gate.ipv4), - sizeof(struct in_addr)); - zebra_vxlan_evpn_vrf_route_add( - vrf_id, &api.rmac, &vtep_ip, - &api.prefix); - } - break; - case NEXTHOP_TYPE_IPV6: - nexthop = route_entry_nexthop_ipv6_add( - re, &api_nh->gate.ipv6, api_nh->vrf_id); - break; - case NEXTHOP_TYPE_IPV6_IFINDEX: - memset(&vtep_ip, 0, sizeof(struct ipaddr)); - if (CHECK_FLAG(api.flags, - ZEBRA_FLAG_EVPN_ROUTE)) { - ifindex = - get_l3vni_svi_ifindex(vrf_id); - } else { - ifindex = api_nh->ifindex; - } - - nexthop = route_entry_nexthop_ipv6_ifindex_add( - re, &api_nh->gate.ipv6, ifindex, - api_nh->vrf_id); - - /* if this an EVPN route entry, - * program the nh as neigh - */ - if (CHECK_FLAG(api.flags, - ZEBRA_FLAG_EVPN_ROUTE)) { - SET_FLAG(nexthop->flags, - NEXTHOP_FLAG_EVPN_RVTEP); - vtep_ip.ipa_type = IPADDR_V6; - memcpy(&vtep_ip.ipaddr_v6, - &(api_nh->gate.ipv6), - sizeof(struct in6_addr)); - zebra_vxlan_evpn_vrf_route_add( - vrf_id, - &api.rmac, - &vtep_ip, - &api.prefix); - } - break; - case NEXTHOP_TYPE_BLACKHOLE: - nexthop = route_entry_nexthop_blackhole_add( - re, api_nh->bh_type); - break; - } - - if (!nexthop) { - zlog_warn( - "%s: Nexthops Specified: %d but we failed to properly create one", - __PRETTY_FUNCTION__, api.nexthop_num); - nexthops_free(re->ng.nexthop); - XFREE(MTYPE_RE, re); - return; - } - /* MPLS labels for BGP-LU or Segment Routing */ - if (CHECK_FLAG(api.message, ZAPI_MESSAGE_LABEL) - && api_nh->type != NEXTHOP_TYPE_IFINDEX - && api_nh->type != NEXTHOP_TYPE_BLACKHOLE) { - enum lsp_types_t label_type; - - label_type = - lsp_type_from_re_type(client->proto); - - if (IS_ZEBRA_DEBUG_RECV) { - zlog_debug( - "%s: adding %d labels of type %d (1st=%u)", - __func__, api_nh->label_num, - label_type, api_nh->labels[0]); - } - - nexthop_add_labels(nexthop, label_type, - api_nh->label_num, - &api_nh->labels[0]); - } - } - } - - if (CHECK_FLAG(api.message, ZAPI_MESSAGE_DISTANCE)) - re->distance = api.distance; - if (CHECK_FLAG(api.message, ZAPI_MESSAGE_METRIC)) - re->metric = api.metric; - if (CHECK_FLAG(api.message, ZAPI_MESSAGE_TAG)) - re->tag = api.tag; - if (CHECK_FLAG(api.message, ZAPI_MESSAGE_MTU)) - re->mtu = api.mtu; - - afi = family2afi(api.prefix.family); - if (afi != AFI_IP6 && CHECK_FLAG(api.message, ZAPI_MESSAGE_SRCPFX)) { - zlog_warn("%s: Received SRC Prefix but afi is not v6", - __PRETTY_FUNCTION__); - nexthops_free(re->ng.nexthop); - XFREE(MTYPE_RE, re); - return; - } - if (CHECK_FLAG(api.message, ZAPI_MESSAGE_SRCPFX)) - src_p = &api.src_prefix; - - ret = rib_add_multipath(afi, api.safi, &api.prefix, src_p, re); - - /* Stats */ - switch (api.prefix.family) { - case AF_INET: - if (ret > 0) - client->v4_route_add_cnt++; - else if (ret < 0) - client->v4_route_upd8_cnt++; - break; - case AF_INET6: - if (ret > 0) - client->v6_route_add_cnt++; - else if (ret < 0) - client->v6_route_upd8_cnt++; - break; - } -} - -static void zread_route_del(ZAPI_HANDLER_ARGS) -{ - struct stream *s; - struct zapi_route api; - afi_t afi; - struct prefix_ipv6 *src_p = NULL; - uint32_t table_id; - - s = msg; - if (zapi_route_decode(s, &api) < 0) - return; - - afi = family2afi(api.prefix.family); - if (afi != AFI_IP6 && CHECK_FLAG(api.message, ZAPI_MESSAGE_SRCPFX)) { - zlog_warn("%s: Received a src prefix while afi is not v6", - __PRETTY_FUNCTION__); - return; - } - if (CHECK_FLAG(api.message, ZAPI_MESSAGE_SRCPFX)) - src_p = &api.src_prefix; - - if (api.vrf_id == VRF_DEFAULT && api.tableid != 0) - table_id = api.tableid; - else - table_id = zvrf->table_id; - - rib_delete(afi, api.safi, zvrf_id(zvrf), api.type, api.instance, - api.flags, &api.prefix, src_p, NULL, table_id, - api.metric, false, &api.rmac); - - /* Stats */ - switch (api.prefix.family) { - case AF_INET: - client->v4_route_del_cnt++; - break; - case AF_INET6: - client->v6_route_del_cnt++; - break; - } -} - -/* This function support multiple nexthop. */ -/* - * Parse the ZEBRA_IPV4_ROUTE_ADD sent from client. Update re and - * add kernel route. - */ -static void zread_ipv4_add(ZAPI_HANDLER_ARGS) -{ - int i; - struct route_entry *re; - struct prefix p; - uint8_t message; - struct in_addr nhop_addr; - uint8_t nexthop_num; - uint8_t nexthop_type; - struct stream *s; - ifindex_t ifindex; - safi_t safi; - int ret; - enum lsp_types_t label_type = ZEBRA_LSP_NONE; - mpls_label_t label; - struct nexthop *nexthop; - enum blackhole_type bh_type = BLACKHOLE_NULL; - - /* Get input stream. */ - s = msg; - - /* Allocate new re. */ - re = XCALLOC(MTYPE_RE, sizeof(struct route_entry)); - - /* Type, flags, message. */ - STREAM_GETC(s, re->type); - if (re->type > ZEBRA_ROUTE_MAX) { - zlog_warn("%s: Specified route type %d is not a legal value\n", - __PRETTY_FUNCTION__, re->type); - XFREE(MTYPE_RE, re); - return; - } - STREAM_GETW(s, re->instance); - STREAM_GETL(s, re->flags); - STREAM_GETC(s, message); - STREAM_GETW(s, safi); - re->uptime = time(NULL); - - /* IPv4 prefix. */ - memset(&p, 0, sizeof(struct prefix_ipv4)); - p.family = AF_INET; - STREAM_GETC(s, p.prefixlen); - if (p.prefixlen > IPV4_MAX_BITLEN) { - zlog_warn( - "%s: Specified prefix length %d is greater than what v4 can be", - __PRETTY_FUNCTION__, p.prefixlen); - XFREE(MTYPE_RE, re); - return; - } - STREAM_GET(&p.u.prefix4, s, PSIZE(p.prefixlen)); - - /* VRF ID */ - re->vrf_id = zvrf_id(zvrf); - - /* Nexthop parse. */ - if (CHECK_FLAG(message, ZAPI_MESSAGE_NEXTHOP)) { - STREAM_GETC(s, nexthop_num); - zserv_nexthop_num_warn(__func__, (const struct prefix *)&p, - nexthop_num); - - if (CHECK_FLAG(message, ZAPI_MESSAGE_LABEL)) - label_type = lsp_type_from_re_type(client->proto); - - for (i = 0; i < nexthop_num; i++) { - STREAM_GETC(s, nexthop_type); - - switch (nexthop_type) { - case NEXTHOP_TYPE_IFINDEX: - STREAM_GETL(s, ifindex); - route_entry_nexthop_ifindex_add(re, ifindex, - re->vrf_id); - break; - case NEXTHOP_TYPE_IPV4: - STREAM_GET(&nhop_addr.s_addr, s, - IPV4_MAX_BYTELEN); - nexthop = route_entry_nexthop_ipv4_add( - re, &nhop_addr, NULL, re->vrf_id); - /* For labeled-unicast, each nexthop is followed - * by label. */ - if (CHECK_FLAG(message, ZAPI_MESSAGE_LABEL)) { - STREAM_GETL(s, label); - nexthop_add_labels(nexthop, label_type, - 1, &label); - } - break; - case NEXTHOP_TYPE_IPV4_IFINDEX: - STREAM_GET(&nhop_addr.s_addr, s, - IPV4_MAX_BYTELEN); - STREAM_GETL(s, ifindex); - route_entry_nexthop_ipv4_ifindex_add( - re, &nhop_addr, NULL, ifindex, - re->vrf_id); - break; - case NEXTHOP_TYPE_IPV6: - zlog_warn( - "%s: Please use ZEBRA_ROUTE_ADD if you want to pass v6 nexthops", - __PRETTY_FUNCTION__); - nexthops_free(re->ng.nexthop); - XFREE(MTYPE_RE, re); - return; - break; - case NEXTHOP_TYPE_BLACKHOLE: - route_entry_nexthop_blackhole_add(re, bh_type); - break; - default: - zlog_warn( - "%s: Specified nexthop type: %d does not exist", - __PRETTY_FUNCTION__, nexthop_type); - nexthops_free(re->ng.nexthop); - XFREE(MTYPE_RE, re); - return; - } - } - } - - /* Distance. */ - if (CHECK_FLAG(message, ZAPI_MESSAGE_DISTANCE)) - STREAM_GETC(s, re->distance); - - /* Metric. */ - if (CHECK_FLAG(message, ZAPI_MESSAGE_METRIC)) - STREAM_GETL(s, re->metric); - - /* Tag */ - if (CHECK_FLAG(message, ZAPI_MESSAGE_TAG)) - STREAM_GETL(s, re->tag); - else - re->tag = 0; - - if (CHECK_FLAG(message, ZAPI_MESSAGE_MTU)) - STREAM_GETL(s, re->mtu); - else - re->mtu = 0; - - /* Table */ - re->table = zvrf->table_id; - - ret = rib_add_multipath(AFI_IP, safi, &p, NULL, re); - - /* Stats */ - if (ret > 0) - client->v4_route_add_cnt++; - else if (ret < 0) - client->v4_route_upd8_cnt++; - - return; - -stream_failure: - nexthops_free(re->ng.nexthop); - XFREE(MTYPE_RE, re); -} - -/* Zebra server IPv4 prefix delete function. */ -static void zread_ipv4_delete(ZAPI_HANDLER_ARGS) -{ - struct stream *s; - struct zapi_ipv4 api; - struct prefix p; - uint32_t table_id; - - s = msg; - - /* Type, flags, message. */ - STREAM_GETC(s, api.type); - STREAM_GETW(s, api.instance); - STREAM_GETL(s, api.flags); - STREAM_GETC(s, api.message); - STREAM_GETW(s, api.safi); - - /* IPv4 prefix. */ - memset(&p, 0, sizeof(struct prefix)); - p.family = AF_INET; - STREAM_GETC(s, p.prefixlen); - if (p.prefixlen > IPV4_MAX_BITLEN) { - zlog_warn("%s: Passed in prefixlen %d is impossible", - __PRETTY_FUNCTION__, p.prefixlen); - return; - } - STREAM_GET(&p.u.prefix4, s, PSIZE(p.prefixlen)); - - table_id = zvrf->table_id; - - rib_delete(AFI_IP, api.safi, zvrf_id(zvrf), api.type, api.instance, - api.flags, &p, NULL, NULL, table_id, 0, false, NULL); - client->v4_route_del_cnt++; - -stream_failure: - return; -} - -/* MRIB Nexthop lookup for IPv4. */ -static void zread_ipv4_nexthop_lookup_mrib(ZAPI_HANDLER_ARGS) -{ - struct in_addr addr; - struct route_entry *re; - - STREAM_GET(&addr.s_addr, msg, IPV4_MAX_BYTELEN); - re = rib_match_ipv4_multicast(zvrf_id(zvrf), addr, NULL); - zsend_ipv4_nexthop_lookup_mrib(client, addr, re, zvrf); - -stream_failure: - return; -} - -/* Zebra server IPv6 prefix add function. */ -static void zread_ipv4_route_ipv6_nexthop_add(ZAPI_HANDLER_ARGS) -{ - unsigned int i; - struct stream *s; - struct in6_addr nhop_addr; - struct route_entry *re; - uint8_t message; - uint8_t nexthop_num; - uint8_t nexthop_type; - struct prefix p; - safi_t safi; - static struct in6_addr nexthops[MULTIPATH_NUM]; - static unsigned int ifindices[MULTIPATH_NUM]; - int ret; - static mpls_label_t labels[MULTIPATH_NUM]; - enum lsp_types_t label_type = ZEBRA_LSP_NONE; - mpls_label_t label; - struct nexthop *nexthop; - enum blackhole_type bh_type = BLACKHOLE_NULL; - - /* Get input stream. */ - s = msg; - - memset(&nhop_addr, 0, sizeof(struct in6_addr)); - - /* Allocate new re. */ - re = XCALLOC(MTYPE_RE, sizeof(struct route_entry)); - - /* Type, flags, message. */ - STREAM_GETC(s, re->type); - if (re->type > ZEBRA_ROUTE_MAX) { - zlog_warn("%s: Specified route type: %d is not a legal value\n", - __PRETTY_FUNCTION__, re->type); - XFREE(MTYPE_RE, re); - return; - } - STREAM_GETW(s, re->instance); - STREAM_GETL(s, re->flags); - STREAM_GETC(s, message); - STREAM_GETW(s, safi); - re->uptime = time(NULL); - - /* IPv4 prefix. */ - memset(&p, 0, sizeof(struct prefix_ipv4)); - p.family = AF_INET; - STREAM_GETC(s, p.prefixlen); - if (p.prefixlen > IPV4_MAX_BITLEN) { - zlog_warn( - "%s: Prefix Length %d is greater than what a v4 address can use", - __PRETTY_FUNCTION__, p.prefixlen); - XFREE(MTYPE_RE, re); - return; - } - STREAM_GET(&p.u.prefix4, s, PSIZE(p.prefixlen)); - - /* VRF ID */ - re->vrf_id = zvrf_id(zvrf); - - /* We need to give nh-addr, nh-ifindex with the same next-hop object - * to the re to ensure that IPv6 multipathing works; need to coalesce - * these. Clients should send the same number of paired set of - * next-hop-addr/next-hop-ifindices. */ - if (CHECK_FLAG(message, ZAPI_MESSAGE_NEXTHOP)) { - unsigned int nh_count = 0; - unsigned int if_count = 0; - unsigned int max_nh_if = 0; - - STREAM_GETC(s, nexthop_num); - zserv_nexthop_num_warn(__func__, (const struct prefix *)&p, - nexthop_num); - - if (CHECK_FLAG(message, ZAPI_MESSAGE_LABEL)) - label_type = lsp_type_from_re_type(client->proto); - - for (i = 0; i < nexthop_num; i++) { - STREAM_GETC(s, nexthop_type); - - switch (nexthop_type) { - case NEXTHOP_TYPE_IPV6: - STREAM_GET(&nhop_addr, s, 16); - if (nh_count < MULTIPATH_NUM) { - /* For labeled-unicast, each nexthop is - * followed by label. */ - if (CHECK_FLAG(message, - ZAPI_MESSAGE_LABEL)) { - STREAM_GETL(s, label); - labels[nh_count] = label; - } - nexthops[nh_count] = nhop_addr; - nh_count++; - } - break; - case NEXTHOP_TYPE_IFINDEX: - if (if_count < multipath_num) { - STREAM_GETL(s, ifindices[if_count++]); - } - break; - case NEXTHOP_TYPE_BLACKHOLE: - route_entry_nexthop_blackhole_add(re, bh_type); - break; - default: - zlog_warn( - "%s: Please use ZEBRA_ROUTE_ADD if you want to pass non v6 nexthops", - __PRETTY_FUNCTION__); - nexthops_free(re->ng.nexthop); - XFREE(MTYPE_RE, re); - return; - } - } - - max_nh_if = (nh_count > if_count) ? nh_count : if_count; - for (i = 0; i < max_nh_if; i++) { - if ((i < nh_count) - && !IN6_IS_ADDR_UNSPECIFIED(&nexthops[i])) { - if ((i < if_count) && ifindices[i]) - nexthop = - route_entry_nexthop_ipv6_ifindex_add( - re, &nexthops[i], - ifindices[i], - re->vrf_id); - else - nexthop = route_entry_nexthop_ipv6_add( - re, &nexthops[i], re->vrf_id); - - if (CHECK_FLAG(message, ZAPI_MESSAGE_LABEL)) - nexthop_add_labels(nexthop, label_type, - 1, &labels[i]); - } else { - if ((i < if_count) && ifindices[i]) - route_entry_nexthop_ifindex_add( - re, ifindices[i], re->vrf_id); - } - } - } - - /* Distance. */ - if (CHECK_FLAG(message, ZAPI_MESSAGE_DISTANCE)) - STREAM_GETC(s, re->distance); - - /* Metric. */ - if (CHECK_FLAG(message, ZAPI_MESSAGE_METRIC)) - STREAM_GETL(s, re->metric); - - /* Tag */ - if (CHECK_FLAG(message, ZAPI_MESSAGE_TAG)) - STREAM_GETL(s, re->tag); - else - re->tag = 0; - - if (CHECK_FLAG(message, ZAPI_MESSAGE_MTU)) - STREAM_GETL(s, re->mtu); - else - re->mtu = 0; - - /* Table */ - re->table = zvrf->table_id; - - ret = rib_add_multipath(AFI_IP6, safi, &p, NULL, re); - /* Stats */ - if (ret > 0) - client->v4_route_add_cnt++; - else if (ret < 0) - client->v4_route_upd8_cnt++; - - return; - -stream_failure: - nexthops_free(re->ng.nexthop); - XFREE(MTYPE_RE, re); -} - -static void zread_ipv6_add(ZAPI_HANDLER_ARGS) -{ - unsigned int i; - struct stream *s; - struct in6_addr nhop_addr; - ifindex_t ifindex; - struct route_entry *re; - uint8_t message; - uint8_t nexthop_num; - uint8_t nexthop_type; - struct prefix p; - struct prefix_ipv6 src_p, *src_pp; - safi_t safi; - static struct in6_addr nexthops[MULTIPATH_NUM]; - static unsigned int ifindices[MULTIPATH_NUM]; - int ret; - static mpls_label_t labels[MULTIPATH_NUM]; - enum lsp_types_t label_type = ZEBRA_LSP_NONE; - mpls_label_t label; - struct nexthop *nexthop; - enum blackhole_type bh_type = BLACKHOLE_NULL; - - /* Get input stream. */ - s = msg; - - memset(&nhop_addr, 0, sizeof(struct in6_addr)); - - /* Allocate new re. */ - re = XCALLOC(MTYPE_RE, sizeof(struct route_entry)); - - /* Type, flags, message. */ - STREAM_GETC(s, re->type); - if (re->type > ZEBRA_ROUTE_MAX) { - zlog_warn("%s: Specified route type: %d is not a legal value\n", - __PRETTY_FUNCTION__, re->type); - XFREE(MTYPE_RE, re); - return; - } - STREAM_GETW(s, re->instance); - STREAM_GETL(s, re->flags); - STREAM_GETC(s, message); - STREAM_GETW(s, safi); - re->uptime = time(NULL); - - /* IPv6 prefix. */ - memset(&p, 0, sizeof(p)); - p.family = AF_INET6; - STREAM_GETC(s, p.prefixlen); - if (p.prefixlen > IPV6_MAX_BITLEN) { - zlog_warn( - "%s: Specified prefix length %d is to large for v6 prefix", - __PRETTY_FUNCTION__, p.prefixlen); - XFREE(MTYPE_RE, re); - return; - } - STREAM_GET(&p.u.prefix6, s, PSIZE(p.prefixlen)); - - if (CHECK_FLAG(message, ZAPI_MESSAGE_SRCPFX)) { - memset(&src_p, 0, sizeof(src_p)); - src_p.family = AF_INET6; - STREAM_GETC(s, src_p.prefixlen); - if (src_p.prefixlen > IPV6_MAX_BITLEN) { - zlog_warn( - "%s: Specified src prefix length %d is to large for v6 prefix", - __PRETTY_FUNCTION__, src_p.prefixlen); - XFREE(MTYPE_RE, re); - return; - } - STREAM_GET(&src_p.prefix, s, PSIZE(src_p.prefixlen)); - src_pp = &src_p; - } else - src_pp = NULL; - - /* VRF ID */ - re->vrf_id = zvrf_id(zvrf); - - /* We need to give nh-addr, nh-ifindex with the same next-hop object - * to the re to ensure that IPv6 multipathing works; need to coalesce - * these. Clients should send the same number of paired set of - * next-hop-addr/next-hop-ifindices. */ - if (CHECK_FLAG(message, ZAPI_MESSAGE_NEXTHOP)) { - unsigned int nh_count = 0; - unsigned int if_count = 0; - unsigned int max_nh_if = 0; - - STREAM_GETC(s, nexthop_num); - zserv_nexthop_num_warn(__func__, (const struct prefix *)&p, - nexthop_num); - - if (CHECK_FLAG(message, ZAPI_MESSAGE_LABEL)) - label_type = lsp_type_from_re_type(client->proto); - - for (i = 0; i < nexthop_num; i++) { - STREAM_GETC(s, nexthop_type); - - switch (nexthop_type) { - case NEXTHOP_TYPE_IPV6: - STREAM_GET(&nhop_addr, s, 16); - if (nh_count < MULTIPATH_NUM) { - /* For labeled-unicast, each nexthop is - * followed by label. */ - if (CHECK_FLAG(message, - ZAPI_MESSAGE_LABEL)) { - STREAM_GETL(s, label); - labels[nh_count] = label; - } - nexthops[nh_count++] = nhop_addr; - } - break; - case NEXTHOP_TYPE_IPV6_IFINDEX: - STREAM_GET(&nhop_addr, s, 16); - STREAM_GETL(s, ifindex); - route_entry_nexthop_ipv6_ifindex_add( - re, &nhop_addr, ifindex, re->vrf_id); - break; - case NEXTHOP_TYPE_IFINDEX: - if (if_count < multipath_num) { - STREAM_GETL(s, ifindices[if_count++]); - } - break; - case NEXTHOP_TYPE_BLACKHOLE: - route_entry_nexthop_blackhole_add(re, bh_type); - break; - default: - zlog_warn( - "%s: Please use ZEBRA_ROUTE_ADD if you want to pass non v6 nexthops", - __PRETTY_FUNCTION__); - nexthops_free(re->ng.nexthop); - XFREE(MTYPE_RE, re); - return; - } - } - - max_nh_if = (nh_count > if_count) ? nh_count : if_count; - for (i = 0; i < max_nh_if; i++) { - if ((i < nh_count) - && !IN6_IS_ADDR_UNSPECIFIED(&nexthops[i])) { - if ((i < if_count) && ifindices[i]) - nexthop = - route_entry_nexthop_ipv6_ifindex_add( - re, &nexthops[i], - ifindices[i], - re->vrf_id); - else - nexthop = route_entry_nexthop_ipv6_add( - re, &nexthops[i], re->vrf_id); - if (CHECK_FLAG(message, ZAPI_MESSAGE_LABEL)) - nexthop_add_labels(nexthop, label_type, - 1, &labels[i]); - } else { - if ((i < if_count) && ifindices[i]) - route_entry_nexthop_ifindex_add( - re, ifindices[i], re->vrf_id); - } - } - } - - /* Distance. */ - if (CHECK_FLAG(message, ZAPI_MESSAGE_DISTANCE)) - STREAM_GETC(s, re->distance); - - /* Metric. */ - if (CHECK_FLAG(message, ZAPI_MESSAGE_METRIC)) - STREAM_GETL(s, re->metric); - - /* Tag */ - if (CHECK_FLAG(message, ZAPI_MESSAGE_TAG)) - STREAM_GETL(s, re->tag); - else - re->tag = 0; - - if (CHECK_FLAG(message, ZAPI_MESSAGE_MTU)) - STREAM_GETL(s, re->mtu); - else - re->mtu = 0; - - re->table = zvrf->table_id; - - ret = rib_add_multipath(AFI_IP6, safi, &p, src_pp, re); - /* Stats */ - if (ret > 0) - client->v6_route_add_cnt++; - else if (ret < 0) - client->v6_route_upd8_cnt++; - - return; - -stream_failure: - nexthops_free(re->ng.nexthop); - XFREE(MTYPE_RE, re); -} - -/* Zebra server IPv6 prefix delete function. */ -static void zread_ipv6_delete(ZAPI_HANDLER_ARGS) -{ - struct stream *s; - struct zapi_ipv6 api; - struct prefix p; - struct prefix_ipv6 src_p, *src_pp; - - s = msg; - - /* Type, flags, message. */ - STREAM_GETC(s, api.type); - STREAM_GETW(s, api.instance); - STREAM_GETL(s, api.flags); - STREAM_GETC(s, api.message); - STREAM_GETW(s, api.safi); - - /* IPv4 prefix. */ - memset(&p, 0, sizeof(struct prefix)); - p.family = AF_INET6; - STREAM_GETC(s, p.prefixlen); - STREAM_GET(&p.u.prefix6, s, PSIZE(p.prefixlen)); - - if (CHECK_FLAG(api.message, ZAPI_MESSAGE_SRCPFX)) { - memset(&src_p, 0, sizeof(struct prefix_ipv6)); - src_p.family = AF_INET6; - STREAM_GETC(s, src_p.prefixlen); - STREAM_GET(&src_p.prefix, s, PSIZE(src_p.prefixlen)); - src_pp = &src_p; - } else - src_pp = NULL; - - rib_delete(AFI_IP6, api.safi, zvrf_id(zvrf), api.type, api.instance, - api.flags, &p, src_pp, NULL, client->rtm_table, 0, false, - NULL); - - client->v6_route_del_cnt++; - -stream_failure: - return; -} - -/* Register zebra server router-id information. Send current router-id */ -static void zread_router_id_add(ZAPI_HANDLER_ARGS) -{ - struct prefix p; - - /* Router-id information is needed. */ - vrf_bitmap_set(client->ridinfo, zvrf_id(zvrf)); - - router_id_get(&p, zvrf_id(zvrf)); - - zsend_router_id_update(client, &p, zvrf_id(zvrf)); -} - -/* Unregister zebra server router-id information. */ -static void zread_router_id_delete(ZAPI_HANDLER_ARGS) -{ - vrf_bitmap_unset(client->ridinfo, zvrf_id(zvrf)); -} - -static void zsend_capabilities(struct zserv *client, struct zebra_vrf *zvrf) -{ - struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); - - zclient_create_header(s, ZEBRA_CAPABILITIES, zvrf->vrf->vrf_id); - stream_putc(s, mpls_enabled); - stream_putl(s, multipath_num); - - stream_putw_at(s, 0, stream_get_endp(s)); - zebra_server_send_message(client, s); -} - -/* Tie up route-type and client->sock */ -static void zread_hello(ZAPI_HANDLER_ARGS) -{ - /* type of protocol (lib/zebra.h) */ - uint8_t proto; - unsigned short instance; - uint8_t notify; - - STREAM_GETC(msg, proto); - STREAM_GETW(msg, instance); - STREAM_GETC(msg, notify); - if (notify) - client->notify_owner = true; - - /* accept only dynamic routing protocols */ - if ((proto < ZEBRA_ROUTE_MAX) && (proto > ZEBRA_ROUTE_STATIC)) { - zlog_notice( - "client %d says hello and bids fair to announce only %s routes vrf=%u", - client->sock, zebra_route_string(proto), - zvrf->vrf->vrf_id); - if (instance) - zlog_notice("client protocol instance %d", instance); - - client->proto = proto; - client->instance = instance; - } - - zsend_capabilities(client, zvrf); -stream_failure: - return; -} - -/* Unregister all information in a VRF. */ -static void zread_vrf_unregister(ZAPI_HANDLER_ARGS) -{ - int i; - afi_t afi; - - for (afi = AFI_IP; afi < AFI_MAX; afi++) - for (i = 0; i < ZEBRA_ROUTE_MAX; i++) - vrf_bitmap_unset(client->redist[afi][i], zvrf_id(zvrf)); - vrf_bitmap_unset(client->redist_default, zvrf_id(zvrf)); - vrf_bitmap_unset(client->ifinfo, zvrf_id(zvrf)); - vrf_bitmap_unset(client->ridinfo, zvrf_id(zvrf)); -} - -static void zread_mpls_labels(ZAPI_HANDLER_ARGS) -{ - struct stream *s; - enum lsp_types_t type; - struct prefix prefix; - enum nexthop_types_t gtype; - union g_addr gate; - ifindex_t ifindex; - mpls_label_t in_label, out_label; - uint8_t distance; - - /* Get input stream. */ - s = msg; - - /* Get data. */ - STREAM_GETC(s, type); - STREAM_GETL(s, prefix.family); - switch (prefix.family) { - case AF_INET: - STREAM_GET(&prefix.u.prefix4.s_addr, s, IPV4_MAX_BYTELEN); - STREAM_GETC(s, prefix.prefixlen); - if (prefix.prefixlen > IPV4_MAX_BITLEN) { - zlog_warn( - "%s: Specified prefix length %d is greater than a v4 address can support", - __PRETTY_FUNCTION__, prefix.prefixlen); - return; - } - STREAM_GET(&gate.ipv4.s_addr, s, IPV4_MAX_BYTELEN); - break; - case AF_INET6: - STREAM_GET(&prefix.u.prefix6, s, 16); - STREAM_GETC(s, prefix.prefixlen); - if (prefix.prefixlen > IPV6_MAX_BITLEN) { - zlog_warn( - "%s: Specified prefix length %d is greater than a v6 address can support", - __PRETTY_FUNCTION__, prefix.prefixlen); - return; - } - STREAM_GET(&gate.ipv6, s, 16); - break; - default: - zlog_warn("%s: Specified AF %d is not supported for this call", - __PRETTY_FUNCTION__, prefix.family); - return; - } - STREAM_GETL(s, ifindex); - STREAM_GETC(s, distance); - STREAM_GETL(s, in_label); - STREAM_GETL(s, out_label); - - switch (prefix.family) { - case AF_INET: - if (ifindex) - gtype = NEXTHOP_TYPE_IPV4_IFINDEX; - else - gtype = NEXTHOP_TYPE_IPV4; - break; - case AF_INET6: - if (ifindex) - gtype = NEXTHOP_TYPE_IPV6_IFINDEX; - else - gtype = NEXTHOP_TYPE_IPV6; - break; - default: - return; - } - - if (!mpls_enabled) - return; - - if (hdr->command == ZEBRA_MPLS_LABELS_ADD) { - mpls_lsp_install(zvrf, type, in_label, out_label, gtype, &gate, - ifindex); - mpls_ftn_update(1, zvrf, type, &prefix, gtype, &gate, ifindex, - distance, out_label); - } else if (hdr->command == ZEBRA_MPLS_LABELS_DELETE) { - mpls_lsp_uninstall(zvrf, type, in_label, gtype, &gate, ifindex); - mpls_ftn_update(0, zvrf, type, &prefix, gtype, &gate, ifindex, - distance, out_label); - } -stream_failure: - return; -} - -static int zsend_table_manager_connect_response(struct zserv *client, - vrf_id_t vrf_id, uint16_t result) -{ - struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); - - zclient_create_header(s, ZEBRA_TABLE_MANAGER_CONNECT, vrf_id); - - /* result */ - stream_putc(s, result); - - stream_putw_at(s, 0, stream_get_endp(s)); - - return zebra_server_send_message(client, s); -} - -/* Send response to a table manager connect request to client */ -static void zread_table_manager_connect(struct zserv *client, - struct stream *msg, - vrf_id_t vrf_id) -{ - struct stream *s; - uint8_t proto; - uint16_t instance; - - s = msg; - - /* Get data. */ - STREAM_GETC(s, proto); - STREAM_GETW(s, instance); - - /* accept only dynamic routing protocols */ - if ((proto >= ZEBRA_ROUTE_MAX) || (proto <= ZEBRA_ROUTE_STATIC)) { - zlog_err("client %d has wrong protocol %s", client->sock, - zebra_route_string(proto)); - zsend_table_manager_connect_response(client, vrf_id, 1); - return; - } - zlog_notice("client %d with vrf %u instance %u connected as %s", - client->sock, vrf_id, instance, zebra_route_string(proto)); - client->proto = proto; - client->instance = instance; - - /* - * Release previous labels of same protocol and instance. - * This is done in case it restarted from an unexpected shutdown. - */ - release_daemon_table_chunks(proto, instance); - - zsend_table_manager_connect_response(client, vrf_id, 0); - - stream_failure: - return; -} - -static void zread_label_manager_connect(struct zserv *client, - struct stream *msg, vrf_id_t vrf_id) -{ - struct stream *s; - /* type of protocol (lib/zebra.h) */ - uint8_t proto; - unsigned short instance; - - /* Get input stream. */ - s = msg; - - /* Get data. */ - STREAM_GETC(s, proto); - STREAM_GETW(s, instance); - - /* accept only dynamic routing protocols */ - if ((proto >= ZEBRA_ROUTE_MAX) || (proto <= ZEBRA_ROUTE_STATIC)) { - zlog_err("client %d has wrong protocol %s", client->sock, - zebra_route_string(proto)); - zsend_label_manager_connect_response(client, vrf_id, 1); - return; - } - zlog_notice("client %d with vrf %u instance %u connected as %s", - client->sock, vrf_id, instance, zebra_route_string(proto)); - client->proto = proto; - client->instance = instance; - - /* - Release previous labels of same protocol and instance. - This is done in case it restarted from an unexpected shutdown. - */ - release_daemon_label_chunks(proto, instance); - - zlog_debug( - " Label Manager client connected: sock %d, proto %s, vrf %u instance %u", - client->sock, zebra_route_string(proto), vrf_id, instance); - /* send response back */ - zsend_label_manager_connect_response(client, vrf_id, 0); - - stream_failure: - return; -} - -static void zread_get_label_chunk(struct zserv *client, struct stream *msg, - vrf_id_t vrf_id) -{ - struct stream *s; - uint8_t keep; - uint32_t size; - struct label_manager_chunk *lmc; - - /* Get input stream. */ - s = msg; - - /* Get data. */ - STREAM_GETC(s, keep); - STREAM_GETL(s, size); - - lmc = assign_label_chunk(client->proto, client->instance, keep, size); - if (!lmc) - zlog_err("%s: Unable to assign Label Chunk of size %u", - __func__, size); - else - zlog_debug("Assigned Label Chunk %u - %u to %u", lmc->start, - lmc->end, keep); - /* send response back */ - zsend_assign_label_chunk_response(client, vrf_id, lmc); - -stream_failure: - return; -} - -static void zread_release_label_chunk(struct zserv *client, struct stream *msg) -{ - struct stream *s; - uint32_t start, end; - - /* Get input stream. */ - s = msg; - - /* Get data. */ - STREAM_GETL(s, start); - STREAM_GETL(s, end); - - release_label_chunk(client->proto, client->instance, start, end); - -stream_failure: - return; -} -static void zread_label_manager_request(ZAPI_HANDLER_ARGS) -{ - /* to avoid sending other messages like ZERBA_INTERFACE_UP */ - if (hdr->command == ZEBRA_LABEL_MANAGER_CONNECT) - client->is_synchronous = 1; - - /* external label manager */ - if (lm_is_external) - zread_relay_label_manager_request(hdr->command, client, - zvrf_id(zvrf)); - /* this is a label manager */ - else { - if (hdr->command == ZEBRA_LABEL_MANAGER_CONNECT) - zread_label_manager_connect(client, msg, zvrf_id(zvrf)); - else { - /* Sanity: don't allow 'unidentified' requests */ - if (!client->proto) { - zlog_err( - "Got label request from an unidentified client"); - return; - } - if (hdr->command == ZEBRA_GET_LABEL_CHUNK) - zread_get_label_chunk(client, msg, - zvrf_id(zvrf)); - else if (hdr->command == ZEBRA_RELEASE_LABEL_CHUNK) - zread_release_label_chunk(client, msg); - } - } -} - -/* Send response to a get table chunk request to client */ -static int zsend_assign_table_chunk_response(struct zserv *client, - vrf_id_t vrf_id, - struct table_manager_chunk *tmc) -{ - struct stream *s = stream_new(ZEBRA_MAX_PACKET_SIZ); - - zclient_create_header(s, ZEBRA_GET_TABLE_CHUNK, vrf_id); - - if (tmc) { - /* start and end labels */ - stream_putl(s, tmc->start); - stream_putl(s, tmc->end); - } - - /* Write packet size. */ - stream_putw_at(s, 0, stream_get_endp(s)); - - return zebra_server_send_message(client, s); -} - -static void zread_get_table_chunk(struct zserv *client, struct stream *msg, - vrf_id_t vrf_id) -{ - struct stream *s; - uint32_t size; - struct table_manager_chunk *tmc; - - /* Get input stream. */ - s = msg; - - /* Get data. */ - STREAM_GETL(s, size); - - tmc = assign_table_chunk(client->proto, client->instance, size); - if (!tmc) - zlog_err("%s: Unable to assign Table Chunk of size %u", - __func__, size); - else - zlog_debug("Assigned Table Chunk %u - %u", tmc->start, - tmc->end); - /* send response back */ - zsend_assign_table_chunk_response(client, vrf_id, tmc); - -stream_failure: - return; -} - -static void zread_release_table_chunk(struct zserv *client, struct stream *msg) -{ - struct stream *s; - uint32_t start, end; - - /* Get input stream. */ - s = msg; - - /* Get data. */ - STREAM_GETL(s, start); - STREAM_GETL(s, end); - - release_table_chunk(client->proto, client->instance, start, end); - -stream_failure: - return; -} - -static void zread_table_manager_request(ZAPI_HANDLER_ARGS) -{ - /* to avoid sending other messages like ZERBA_INTERFACE_UP */ - if (hdr->command == ZEBRA_TABLE_MANAGER_CONNECT) - zread_table_manager_connect(client, msg, zvrf_id(zvrf)); - else { - /* Sanity: don't allow 'unidentified' requests */ - if (!client->proto) { - zlog_err( - "Got table request from an unidentified client"); - return; - } - if (hdr->command == ZEBRA_GET_TABLE_CHUNK) - zread_get_table_chunk(client, msg, - zvrf_id(zvrf)); - else if (hdr->command == ZEBRA_RELEASE_TABLE_CHUNK) - zread_release_table_chunk(client, msg); - } -} - -static void zread_pseudowire(ZAPI_HANDLER_ARGS) -{ - struct stream *s; - char ifname[IF_NAMESIZE]; - ifindex_t ifindex; - int type; - int af; - union g_addr nexthop; - uint32_t local_label; - uint32_t remote_label; - uint8_t flags; - union pw_protocol_fields data; - uint8_t protocol; - struct zebra_pw *pw; - - /* Get input stream. */ - s = msg; - - /* Get data. */ - STREAM_GET(ifname, s, IF_NAMESIZE); - STREAM_GETL(s, ifindex); - STREAM_GETL(s, type); - STREAM_GETL(s, af); - switch (af) { - case AF_INET: - STREAM_GET(&nexthop.ipv4.s_addr, s, IPV4_MAX_BYTELEN); - break; - case AF_INET6: - STREAM_GET(&nexthop.ipv6, s, 16); - break; - default: - return; - } - STREAM_GETL(s, local_label); - STREAM_GETL(s, remote_label); - STREAM_GETC(s, flags); - STREAM_GET(&data, s, sizeof(data)); - protocol = client->proto; - - pw = zebra_pw_find(zvrf, ifname); - switch (hdr->command) { - case ZEBRA_PW_ADD: - if (pw) { - zlog_warn("%s: pseudowire %s already exists [%s]", - __func__, ifname, - zserv_command_string(hdr->command)); - return; - } - - zebra_pw_add(zvrf, ifname, protocol, client); - break; - case ZEBRA_PW_DELETE: - if (!pw) { - zlog_warn("%s: pseudowire %s not found [%s]", __func__, - ifname, zserv_command_string(hdr->command)); - return; - } - - zebra_pw_del(zvrf, pw); - break; - case ZEBRA_PW_SET: - case ZEBRA_PW_UNSET: - if (!pw) { - zlog_warn("%s: pseudowire %s not found [%s]", __func__, - ifname, zserv_command_string(hdr->command)); - return; - } - - switch (hdr->command) { - case ZEBRA_PW_SET: - pw->enabled = 1; - break; - case ZEBRA_PW_UNSET: - pw->enabled = 0; - break; - } - - zebra_pw_change(pw, ifindex, type, af, &nexthop, local_label, - remote_label, flags, &data); - break; - } - -stream_failure: - return; -} - -/* Cleanup registered nexthops (across VRFs) upon client disconnect. */ -static void zebra_client_close_cleanup_rnh(struct zserv *client) -{ - struct vrf *vrf; - struct zebra_vrf *zvrf; - - RB_FOREACH (vrf, vrf_id_head, &vrfs_by_id) { - if ((zvrf = vrf->info) != NULL) { - zebra_cleanup_rnh_client(zvrf_id(zvrf), AF_INET, client, - RNH_NEXTHOP_TYPE); - zebra_cleanup_rnh_client(zvrf_id(zvrf), AF_INET6, - client, RNH_NEXTHOP_TYPE); - zebra_cleanup_rnh_client(zvrf_id(zvrf), AF_INET, client, - RNH_IMPORT_CHECK_TYPE); - zebra_cleanup_rnh_client(zvrf_id(zvrf), AF_INET6, - client, RNH_IMPORT_CHECK_TYPE); - if (client->proto == ZEBRA_ROUTE_LDP) { - hash_iterate(zvrf->lsp_table, - mpls_ldp_lsp_uninstall_all, - zvrf->lsp_table); - mpls_ldp_ftn_uninstall_all(zvrf, AFI_IP); - mpls_ldp_ftn_uninstall_all(zvrf, AFI_IP6); - } - } - } -} - -static void zread_interface_set_master(ZAPI_HANDLER_ARGS) -{ - struct interface *master; - struct interface *slave; - struct stream *s = msg; - int ifindex; - vrf_id_t vrf_id; - - STREAM_GETL(s, vrf_id); - STREAM_GETL(s, ifindex); - master = if_lookup_by_index(ifindex, vrf_id); - - STREAM_GETL(s, vrf_id); - STREAM_GETL(s, ifindex); - slave = if_lookup_by_index(ifindex, vrf_id); - - if (!master || !slave) - return; - - kernel_interface_set_master(master, slave); - -stream_failure: - return; -} - - -static void zread_vrf_label(ZAPI_HANDLER_ARGS) -{ - struct interface *ifp; - mpls_label_t nlabel; - afi_t afi; - struct stream *s; - struct zebra_vrf *def_zvrf; - enum lsp_types_t ltype; - - s = msg; - STREAM_GETL(s, nlabel); - STREAM_GETC(s, afi); - if (nlabel == zvrf->label[afi]) { - /* - * Nothing to do here move along - */ - return; - } - - STREAM_GETC(s, ltype); - - if (zvrf->vrf->vrf_id != VRF_DEFAULT) - ifp = if_lookup_by_name(zvrf->vrf->name, zvrf->vrf->vrf_id); - else - ifp = if_lookup_by_name("lo", VRF_DEFAULT); - - if (!ifp) { - zlog_debug("Unable to find specified Interface for %s", - zvrf->vrf->name); - return; - } - - def_zvrf = zebra_vrf_lookup_by_id(VRF_DEFAULT); - - if (zvrf->label[afi] != MPLS_LABEL_NONE) { - afi_t scrubber; - bool really_remove; - - really_remove = true; - for (scrubber = AFI_IP; scrubber < AFI_MAX; scrubber++) { - if (scrubber == afi) - continue; - - if (zvrf->label[scrubber] == MPLS_LABEL_NONE) - continue; - - if (zvrf->label[afi] == zvrf->label[scrubber]) { - really_remove = false; - break; - } - } - - if (really_remove) - mpls_lsp_uninstall(def_zvrf, ltype, zvrf->label[afi], - NEXTHOP_TYPE_IFINDEX, NULL, - ifp->ifindex); - } - - if (nlabel != MPLS_LABEL_NONE) - mpls_lsp_install(def_zvrf, ltype, nlabel, - MPLS_LABEL_IMPLICIT_NULL, NEXTHOP_TYPE_IFINDEX, - NULL, ifp->ifindex); - - zvrf->label[afi] = nlabel; -stream_failure: - return; -} - -static inline void zread_rule(ZAPI_HANDLER_ARGS) -{ - struct zebra_pbr_rule zpr; - struct stream *s; - uint32_t total, i; - ifindex_t ifindex; - - s = msg; - STREAM_GETL(s, total); - - for (i = 0; i < total; i++) { - memset(&zpr, 0, sizeof(zpr)); - - zpr.sock = client->sock; - zpr.rule.vrf_id = hdr->vrf_id; - STREAM_GETL(s, zpr.rule.seq); - STREAM_GETL(s, zpr.rule.priority); - STREAM_GETL(s, zpr.rule.unique); - STREAM_GETC(s, zpr.rule.filter.src_ip.family); - STREAM_GETC(s, zpr.rule.filter.src_ip.prefixlen); - STREAM_GET(&zpr.rule.filter.src_ip.u.prefix, s, - prefix_blen(&zpr.rule.filter.src_ip)); - STREAM_GETW(s, zpr.rule.filter.src_port); - STREAM_GETC(s, zpr.rule.filter.dst_ip.family); - STREAM_GETC(s, zpr.rule.filter.dst_ip.prefixlen); - STREAM_GET(&zpr.rule.filter.dst_ip.u.prefix, s, - prefix_blen(&zpr.rule.filter.dst_ip)); - STREAM_GETW(s, zpr.rule.filter.dst_port); - STREAM_GETL(s, zpr.rule.filter.fwmark); - STREAM_GETL(s, zpr.rule.action.table); - STREAM_GETL(s, ifindex); - - if (ifindex) { - zpr.ifp = if_lookup_by_index(ifindex, VRF_UNKNOWN); - if (!zpr.ifp) { - zlog_debug("Failed to lookup ifindex: %u", - ifindex); - return; - } - } - - if (!is_default_prefix(&zpr.rule.filter.src_ip)) - zpr.rule.filter.filter_bm |= PBR_FILTER_SRC_IP; - - if (!is_default_prefix(&zpr.rule.filter.dst_ip)) - zpr.rule.filter.filter_bm |= PBR_FILTER_DST_IP; - - if (zpr.rule.filter.src_port) - zpr.rule.filter.filter_bm |= PBR_FILTER_SRC_PORT; - - if (zpr.rule.filter.dst_port) - zpr.rule.filter.filter_bm |= PBR_FILTER_DST_PORT; - - if (zpr.rule.filter.fwmark) - zpr.rule.filter.filter_bm |= PBR_FILTER_FWMARK; - - if (hdr->command == ZEBRA_RULE_ADD) - zebra_pbr_add_rule(zvrf->zns, &zpr); - else - zebra_pbr_del_rule(zvrf->zns, &zpr); - } - -stream_failure: - return; -} - - -static inline void zread_ipset(ZAPI_HANDLER_ARGS) -{ - struct zebra_pbr_ipset zpi; - struct stream *s; - uint32_t total, i; - - s = msg; - STREAM_GETL(s, total); - - for (i = 0; i < total; i++) { - memset(&zpi, 0, sizeof(zpi)); - - zpi.sock = client->sock; - STREAM_GETL(s, zpi.unique); - STREAM_GETL(s, zpi.type); - STREAM_GET(&zpi.ipset_name, s, - ZEBRA_IPSET_NAME_SIZE); - - if (hdr->command == ZEBRA_IPSET_CREATE) - zebra_pbr_create_ipset(zvrf->zns, &zpi); - else - zebra_pbr_destroy_ipset(zvrf->zns, &zpi); - } - -stream_failure: - return; -} - -static inline void zread_ipset_entry(ZAPI_HANDLER_ARGS) -{ - struct zebra_pbr_ipset_entry zpi; - struct zebra_pbr_ipset ipset; - struct stream *s; - uint32_t total, i; - - s = msg; - STREAM_GETL(s, total); - - for (i = 0; i < total; i++) { - memset(&zpi, 0, sizeof(zpi)); - memset(&ipset, 0, sizeof(ipset)); - - zpi.sock = client->sock; - STREAM_GETL(s, zpi.unique); - STREAM_GET(&ipset.ipset_name, s, - ZEBRA_IPSET_NAME_SIZE); - STREAM_GETC(s, zpi.src.family); - STREAM_GETC(s, zpi.src.prefixlen); - STREAM_GET(&zpi.src.u.prefix, s, - prefix_blen(&zpi.src)); - STREAM_GETC(s, zpi.dst.family); - STREAM_GETC(s, zpi.dst.prefixlen); - STREAM_GET(&zpi.dst.u.prefix, s, - prefix_blen(&zpi.dst)); - - if (!is_default_prefix(&zpi.src)) - zpi.filter_bm |= PBR_FILTER_SRC_IP; - - if (!is_default_prefix(&zpi.dst)) - zpi.filter_bm |= PBR_FILTER_DST_IP; - - /* calculate backpointer */ - zpi.backpointer = zebra_pbr_lookup_ipset_pername(zvrf->zns, - ipset.ipset_name); - if (hdr->command == ZEBRA_IPSET_ENTRY_ADD) - zebra_pbr_add_ipset_entry(zvrf->zns, &zpi); - else - zebra_pbr_del_ipset_entry(zvrf->zns, &zpi); - } - -stream_failure: - return; -} - -static inline void zread_iptable(ZAPI_HANDLER_ARGS) -{ - struct zebra_pbr_iptable zpi; - struct stream *s; - - s = msg; - - memset(&zpi, 0, sizeof(zpi)); - - zpi.sock = client->sock; - STREAM_GETL(s, zpi.unique); - STREAM_GETL(s, zpi.type); - STREAM_GETL(s, zpi.filter_bm); - STREAM_GETL(s, zpi.action); - STREAM_GETL(s, zpi.fwmark); - STREAM_GET(&zpi.ipset_name, s, - ZEBRA_IPSET_NAME_SIZE); - - if (hdr->command == ZEBRA_IPTABLE_ADD) - zebra_pbr_add_iptable(zvrf->zns, &zpi); - else - zebra_pbr_del_iptable(zvrf->zns, &zpi); -stream_failure: - return; -} - -void (*zserv_handlers[])(ZAPI_HANDLER_ARGS) = { - [ZEBRA_ROUTER_ID_ADD] = zread_router_id_add, - [ZEBRA_ROUTER_ID_DELETE] = zread_router_id_delete, - [ZEBRA_INTERFACE_ADD] = zread_interface_add, - [ZEBRA_INTERFACE_DELETE] = zread_interface_delete, - [ZEBRA_ROUTE_ADD] = zread_route_add, - [ZEBRA_ROUTE_DELETE] = zread_route_del, - [ZEBRA_IPV4_ROUTE_ADD] = zread_ipv4_add, - [ZEBRA_IPV4_ROUTE_DELETE] = zread_ipv4_delete, - [ZEBRA_IPV4_ROUTE_IPV6_NEXTHOP_ADD] = zread_ipv4_route_ipv6_nexthop_add, - [ZEBRA_IPV6_ROUTE_ADD] = zread_ipv6_add, - [ZEBRA_IPV6_ROUTE_DELETE] = zread_ipv6_delete, - [ZEBRA_REDISTRIBUTE_ADD] = zebra_redistribute_add, - [ZEBRA_REDISTRIBUTE_DELETE] = zebra_redistribute_delete, - [ZEBRA_REDISTRIBUTE_DEFAULT_ADD] = zebra_redistribute_default_add, - [ZEBRA_REDISTRIBUTE_DEFAULT_DELETE] = zebra_redistribute_default_delete, - [ZEBRA_IPV4_NEXTHOP_LOOKUP_MRIB] = zread_ipv4_nexthop_lookup_mrib, - [ZEBRA_HELLO] = zread_hello, - [ZEBRA_NEXTHOP_REGISTER] = zread_rnh_register, - [ZEBRA_NEXTHOP_UNREGISTER] = zread_rnh_unregister, - [ZEBRA_IMPORT_ROUTE_REGISTER] = zread_rnh_register, - [ZEBRA_IMPORT_ROUTE_UNREGISTER] = zread_rnh_unregister, - [ZEBRA_BFD_DEST_UPDATE] = zebra_ptm_bfd_dst_register, - [ZEBRA_BFD_DEST_REGISTER] = zebra_ptm_bfd_dst_register, - [ZEBRA_BFD_DEST_DEREGISTER] = zebra_ptm_bfd_dst_deregister, - [ZEBRA_VRF_UNREGISTER] = zread_vrf_unregister, - [ZEBRA_VRF_LABEL] = zread_vrf_label, - [ZEBRA_BFD_CLIENT_REGISTER] = zebra_ptm_bfd_client_register, -#if defined(HAVE_RTADV) - [ZEBRA_INTERFACE_ENABLE_RADV] = zebra_interface_radv_enable, - [ZEBRA_INTERFACE_DISABLE_RADV] = zebra_interface_radv_disable, -#else - [ZEBRA_INTERFACE_ENABLE_RADV] = NULL, - [ZEBRA_INTERFACE_DISABLE_RADV] = NULL, -#endif - [ZEBRA_MPLS_LABELS_ADD] = zread_mpls_labels, - [ZEBRA_MPLS_LABELS_DELETE] = zread_mpls_labels, - [ZEBRA_IPMR_ROUTE_STATS] = zebra_ipmr_route_stats, - [ZEBRA_LABEL_MANAGER_CONNECT] = zread_label_manager_request, - [ZEBRA_GET_LABEL_CHUNK] = zread_label_manager_request, - [ZEBRA_RELEASE_LABEL_CHUNK] = zread_label_manager_request, - [ZEBRA_FEC_REGISTER] = zread_fec_register, - [ZEBRA_FEC_UNREGISTER] = zread_fec_unregister, - [ZEBRA_ADVERTISE_DEFAULT_GW] = zebra_vxlan_advertise_gw_macip, - [ZEBRA_ADVERTISE_SUBNET] = zebra_vxlan_advertise_subnet, - [ZEBRA_ADVERTISE_ALL_VNI] = zebra_vxlan_advertise_all_vni, - [ZEBRA_REMOTE_VTEP_ADD] = zebra_vxlan_remote_vtep_add, - [ZEBRA_REMOTE_VTEP_DEL] = zebra_vxlan_remote_vtep_del, - [ZEBRA_REMOTE_MACIP_ADD] = zebra_vxlan_remote_macip_add, - [ZEBRA_REMOTE_MACIP_DEL] = zebra_vxlan_remote_macip_del, - [ZEBRA_INTERFACE_SET_MASTER] = zread_interface_set_master, - [ZEBRA_PW_ADD] = zread_pseudowire, - [ZEBRA_PW_DELETE] = zread_pseudowire, - [ZEBRA_PW_SET] = zread_pseudowire, - [ZEBRA_PW_UNSET] = zread_pseudowire, - [ZEBRA_RULE_ADD] = zread_rule, - [ZEBRA_RULE_DELETE] = zread_rule, - [ZEBRA_TABLE_MANAGER_CONNECT] = zread_table_manager_request, - [ZEBRA_GET_TABLE_CHUNK] = zread_table_manager_request, - [ZEBRA_RELEASE_TABLE_CHUNK] = zread_table_manager_request, - [ZEBRA_IPSET_CREATE] = zread_ipset, - [ZEBRA_IPSET_DESTROY] = zread_ipset, - [ZEBRA_IPSET_ENTRY_ADD] = zread_ipset_entry, - [ZEBRA_IPSET_ENTRY_DELETE] = zread_ipset_entry, - [ZEBRA_IPTABLE_ADD] = zread_iptable, - [ZEBRA_IPTABLE_DELETE] = zread_iptable, -}; - -static inline void zserv_handle_commands(struct zserv *client, - struct zmsghdr *hdr, - struct stream *msg, - struct zebra_vrf *zvrf) -{ - if (hdr->command > array_size(zserv_handlers) - || zserv_handlers[hdr->command] == NULL) - zlog_info("Zebra received unknown command %d", hdr->command); - else - zserv_handlers[hdr->command](client, hdr, msg, zvrf); - - stream_free(msg); -} - /* Lifecycle ---------------------------------------------------------------- */ /* free zebra client information. */ @@ -3017,7 +93,7 @@ static void zebra_client_free(struct zserv *client) zebra_pbr_client_close_cleanup(client->sock); /* Cleanup any registered nexthops - across all VRFs. */ - zebra_client_close_cleanup_rnh(client); + zebra_client_cleanup_rnh(client); /* Release Label Manager chunks */ release_daemon_label_chunks(client->proto, client->instance); diff --git a/zebra/zserv.h b/zebra/zserv.h index 503d85f5b..2a148f645 100644 --- a/zebra/zserv.h +++ b/zebra/zserv.h @@ -1,17 +1,19 @@ -/* Zebra daemon server header. - * Copyright (C) 1997, 98 Kunihiro Ishiguro +/* + * Zebra API server. + * Portions: + * Copyright (C) 1997-1999 Kunihiro Ishiguro + * Copyright (C) 2015-2018 Cumulus Networks, Inc. + * et al. * - * This file is part of GNU Zebra. + * 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. * - * 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. + * 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; see the file COPYING; if not, write to the Free Software @@ -21,18 +23,19 @@ #ifndef _ZEBRA_ZSERV_H #define _ZEBRA_ZSERV_H -#include "rib.h" -#include "if.h" -#include "workqueue.h" -#include "vrf.h" -#include "routemap.h" -#include "vty.h" -#include "zclient.h" -#include "pbr.h" +#include <stdint.h> /* for uint32_t, uint8_t */ +#include <time.h> /* for time_t */ + +#include "lib/route_types.h" /* for ZEBRA_ROUTE_MAX */ +#include "lib/zebra.h" /* for AFI_MAX */ +#include "lib/vrf.h" /* for vrf_bitmap_t */ +#include "lib/zclient.h" /* for redist_proto */ +#include "lib/stream.h" /* for stream, stream_fifo */ +#include "lib/thread.h" /* for thread, thread_master */ +#include "lib/linklist.h" /* for list */ +#include "lib/workqueue.h" /* for work_queue */ -#include "zebra/zebra_ns.h" -#include "zebra/zebra_pw.h" -//#include "zebra/zebra_pbr.h" +#include "zebra/zebra_vrf.h" /* for zebra_vrf */ /* Default port information. */ #define ZEBRA_VTY_PORT 2601 @@ -164,48 +167,6 @@ extern unsigned int multipath_num; /* Prototypes. */ extern void zserv_init(void); extern void zebra_zserv_socket_init(char *path); - -extern int zsend_vrf_add(struct zserv *, struct zebra_vrf *); -extern int zsend_vrf_delete(struct zserv *, struct zebra_vrf *); - -extern int zsend_interface_add(struct zserv *, struct interface *); -extern int zsend_interface_delete(struct zserv *, struct interface *); -extern int zsend_interface_addresses(struct zserv *, struct interface *); -extern int zsend_interface_address(int, struct zserv *, struct interface *, - struct connected *); -extern void nbr_connected_add_ipv6(struct interface *, struct in6_addr *); -extern void nbr_connected_delete_ipv6(struct interface *, struct in6_addr *); -extern int zsend_interface_update(int, struct zserv *, struct interface *); -extern int zsend_redistribute_route(int, struct zserv *, struct prefix *, - struct prefix *, struct route_entry *); -extern int zsend_router_id_update(struct zserv *, struct prefix *, vrf_id_t); -extern int zsend_interface_vrf_update(struct zserv *, struct interface *, - vrf_id_t); - -extern int zsend_interface_link_params(struct zserv *, struct interface *); -extern int zsend_pw_update(struct zserv *, struct zebra_pw *); - -extern int zsend_route_notify_owner(struct route_entry *re, struct prefix *p, - enum zapi_route_notify_owner note); - -struct zebra_pbr_ipset; -struct zebra_pbr_ipset_entry; -struct zebra_pbr_iptable; -struct zebra_pbr_rule; -extern void zsend_rule_notify_owner(struct zebra_pbr_rule *rule, - enum zapi_rule_notify_owner note); -extern void zsend_ipset_notify_owner( - struct zebra_pbr_ipset *ipset, - enum zapi_ipset_notify_owner note); -extern void zsend_ipset_entry_notify_owner( - struct zebra_pbr_ipset_entry *ipset, - enum zapi_ipset_entry_notify_owner note); -extern void zsend_iptable_notify_owner( - struct zebra_pbr_iptable *iptable, - enum zapi_iptable_notify_owner note); - -extern void zserv_nexthop_num_warn(const char *, const struct prefix *, - const unsigned int); extern int zebra_server_send_message(struct zserv *client, struct stream *msg); extern struct zserv *zebra_find_client(uint8_t proto, unsigned short instance); |