/
bgp_rfapi_cfg.c
4607 lines (3959 loc) · 123 KB
/
bgp_rfapi_cfg.c
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/*
*
* Copyright 2009-2016, LabN Consulting, L.L.C.
*
*
* 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/zebra.h"
#include "lib/command.h"
#include "lib/prefix.h"
#include "lib/memory.h"
#include "lib/linklist.h"
#include "lib/agg_table.h"
#include "lib/plist.h"
#include "lib/routemap.h"
#include "bgpd/bgpd.h"
#include "bgpd/bgp_attr.h"
#include "bgpd/bgp_route.h"
#include "bgpd/bgp_mplsvpn.h"
#include "bgpd/bgp_vty.h"
#include "bgpd/bgp_ecommunity.h"
#include "bgpd/rfapi/rfapi.h"
#include "bgpd/rfapi/bgp_rfapi_cfg.h"
#include "bgpd/rfapi/rfapi_backend.h"
#include "bgpd/rfapi/rfapi_import.h"
#include "bgpd/rfapi/rfapi_private.h"
#include "bgpd/rfapi/rfapi_monitor.h"
#include "bgpd/rfapi/vnc_zebra.h"
#include "bgpd/rfapi/vnc_export_bgp.h"
#include "bgpd/rfapi/vnc_export_bgp_p.h"
#include "bgpd/rfapi/rfapi_vty.h"
#include "bgpd/rfapi/vnc_import_bgp.h"
#include "bgpd/rfapi/vnc_debug.h"
#if ENABLE_BGP_VNC
#undef BGP_VNC_DEBUG_MATCH_GROUP
DEFINE_MGROUP(RFAPI, "rfapi")
DEFINE_MTYPE(RFAPI, RFAPI_CFG, "NVE Configuration")
DEFINE_MTYPE(RFAPI, RFAPI_GROUP_CFG, "NVE Group Configuration")
DEFINE_MTYPE(RFAPI, RFAPI_L2_CFG, "RFAPI L2 Group Configuration")
DEFINE_MTYPE(RFAPI, RFAPI_RFP_GROUP_CFG, "RFAPI RFP Group Configuration")
DEFINE_MTYPE(RFAPI, RFAPI, "RFAPI Generic")
DEFINE_MTYPE(RFAPI, RFAPI_DESC, "RFAPI Descriptor")
DEFINE_MTYPE(RFAPI, RFAPI_IMPORTTABLE, "RFAPI Import Table")
DEFINE_MTYPE(RFAPI, RFAPI_MONITOR, "RFAPI Monitor VPN")
DEFINE_MTYPE(RFAPI, RFAPI_MONITOR_ENCAP, "RFAPI Monitor Encap")
DEFINE_MTYPE(RFAPI, RFAPI_NEXTHOP, "RFAPI Next Hop")
DEFINE_MTYPE(RFAPI, RFAPI_VN_OPTION, "RFAPI VN Option")
DEFINE_MTYPE(RFAPI, RFAPI_UN_OPTION, "RFAPI UN Option")
DEFINE_MTYPE(RFAPI, RFAPI_WITHDRAW, "RFAPI Withdraw")
DEFINE_MTYPE(RFAPI, RFAPI_RFG_NAME, "RFAPI RFGName")
DEFINE_MTYPE(RFAPI, RFAPI_ADB, "RFAPI Advertisement Data")
DEFINE_MTYPE(RFAPI, RFAPI_ETI, "RFAPI Export Table Info")
DEFINE_MTYPE(RFAPI, RFAPI_NVE_ADDR, "RFAPI NVE Address")
DEFINE_MTYPE(RFAPI, RFAPI_PREFIX_BAG, "RFAPI Prefix Bag")
DEFINE_MTYPE(RFAPI, RFAPI_IT_EXTRA, "RFAPI IT Extra")
DEFINE_MTYPE(RFAPI, RFAPI_INFO, "RFAPI Info")
DEFINE_MTYPE(RFAPI, RFAPI_ADDR, "RFAPI Addr")
DEFINE_MTYPE(RFAPI, RFAPI_UPDATED_RESPONSE_QUEUE, "RFAPI Updated Rsp Queue")
DEFINE_MTYPE(RFAPI, RFAPI_RECENT_DELETE, "RFAPI Recently Deleted Route")
DEFINE_MTYPE(RFAPI, RFAPI_L2ADDR_OPT, "RFAPI L2 Address Option")
DEFINE_MTYPE(RFAPI, RFAPI_AP, "RFAPI Advertised Prefix")
DEFINE_MTYPE(RFAPI, RFAPI_MONITOR_ETH, "RFAPI Monitor Ethernet")
DEFINE_QOBJ_TYPE(rfapi_nve_group_cfg)
DEFINE_QOBJ_TYPE(rfapi_l2_group_cfg)
/***********************************************************************
* RFAPI Support
***********************************************************************/
/*
* compaitibility to old quagga_time call
* time_t value in terms of stabilised absolute time.
* replacement for POSIX time()
*/
time_t rfapi_time(time_t *t)
{
time_t clock = bgp_clock();
if (t)
*t = clock;
return clock;
}
void nve_group_to_nve_list(struct rfapi_nve_group_cfg *rfg, struct list **nves,
uint8_t family) /* AF_INET, AF_INET6 */
{
struct listnode *hln;
struct rfapi_descriptor *rfd;
/*
* loop over nves in this grp, add to list
*/
for (ALL_LIST_ELEMENTS_RO(rfg->nves, hln, rfd)) {
if (rfd->vn_addr.addr_family == family) {
if (!*nves)
*nves = list_new();
listnode_add(*nves, rfd);
}
}
}
struct rfapi_nve_group_cfg *bgp_rfapi_cfg_match_group(struct rfapi_cfg *hc,
struct prefix *vn,
struct prefix *un)
{
struct rfapi_nve_group_cfg *rfg_vn = NULL;
struct rfapi_nve_group_cfg *rfg_un = NULL;
struct agg_table *rt_vn;
struct agg_table *rt_un;
struct agg_node *rn_vn;
struct agg_node *rn_un;
struct rfapi_nve_group_cfg *rfg;
struct listnode *node, *nnode;
switch (vn->family) {
case AF_INET:
rt_vn = hc->nve_groups_vn[AFI_IP];
break;
case AF_INET6:
rt_vn = hc->nve_groups_vn[AFI_IP6];
break;
default:
return NULL;
}
switch (un->family) {
case AF_INET:
rt_un = hc->nve_groups_un[AFI_IP];
break;
case AF_INET6:
rt_un = hc->nve_groups_un[AFI_IP6];
break;
default:
return NULL;
}
rn_vn = agg_node_match(rt_vn, vn); /* NB locks node */
if (rn_vn) {
rfg_vn = rn_vn->info;
agg_unlock_node(rn_vn);
}
rn_un = agg_node_match(rt_un, un); /* NB locks node */
if (rn_un) {
rfg_un = rn_un->info;
agg_unlock_node(rn_un);
}
#if BGP_VNC_DEBUG_MATCH_GROUP
{
char buf[PREFIX_STRLEN];
prefix2str(vn, buf, sizeof(buf));
vnc_zlog_debug_verbose("%s: vn prefix: %s", __func__, buf);
prefix2str(un, buf, sizeof(buf));
vnc_zlog_debug_verbose("%s: un prefix: %s", __func__, buf);
vnc_zlog_debug_verbose(
"%s: rn_vn=%p, rn_un=%p, rfg_vn=%p, rfg_un=%p",
__func__, rn_vn, rn_un, rfg_vn, rfg_un);
}
#endif
if (rfg_un == rfg_vn) /* same group */
return rfg_un;
if (!rfg_un) /* un doesn't match, return vn-matched grp */
return rfg_vn;
if (!rfg_vn) /* vn doesn't match, return un-matched grp */
return rfg_un;
/*
* Two different nve groups match: the group configured earlier wins.
* For now, just walk the sequential list and pick the first one.
* If this approach is too slow, then store serial numbers in the
* nve group structures as they are defined and just compare
* serial numbers.
*/
for (ALL_LIST_ELEMENTS(hc->nve_groups_sequential, node, nnode, rfg)) {
if ((rfg == rfg_un) || (rfg == rfg_vn)) {
return rfg;
}
}
vnc_zlog_debug_verbose(
"%s: shouldn't happen, returning NULL when un and vn match",
__func__);
return NULL; /* shouldn't happen */
}
/*------------------------------------------
* rfapi_get_rfp_start_val
*
* Returns value passed to rfapi on rfp_start
*
* input:
* void * bgp structure
*
* returns:
* void *
*------------------------------------------*/
void *rfapi_get_rfp_start_val(void *bgpv)
{
struct bgp *bgp = bgpv;
if (bgp == NULL || bgp->rfapi == NULL)
return NULL;
return bgp->rfapi->rfp;
}
/*------------------------------------------
* bgp_rfapi_is_vnc_configured
*
* Returns if VNC is configured
*
* input:
* bgp NULL (=use default instance)
*
* output:
*
* return value: If VNC is configured for the bgpd instance
* 0 Success
* EPERM Not Default instance (VNC operations not allowed)
* ENXIO VNC not configured
--------------------------------------------*/
int bgp_rfapi_is_vnc_configured(struct bgp *bgp)
{
if (bgp == NULL)
bgp = bgp_get_default();
if (bgp && bgp->inst_type != BGP_INSTANCE_TYPE_DEFAULT)
return EPERM;
if (bgp && bgp->rfapi_cfg)
return 0;
return ENXIO;
}
/***********************************************************************
* VNC Configuration/CLI
***********************************************************************/
#define VNC_VTY_CONFIG_CHECK(bgp) \
{ \
switch (bgp_rfapi_is_vnc_configured(bgp)) { \
case EPERM: \
vty_out(vty, \
"VNC operations only permitted on default BGP instance.\n"); \
return CMD_WARNING_CONFIG_FAILED; \
break; \
case ENXIO: \
vty_out(vty, "VNC not configured.\n"); \
return CMD_WARNING_CONFIG_FAILED; \
break; \
default: \
break; \
} \
}
DEFUN (vnc_advertise_un_method,
vnc_advertise_un_method_cmd,
"vnc advertise-un-method encap-attr",
VNC_CONFIG_STR
"Method of advertising UN addresses\n"
"Via Tunnel Encap attribute (in VPN SAFI)\n")
{
VTY_DECLVAR_CONTEXT(bgp, bgp);
VNC_VTY_CONFIG_CHECK(bgp);
if (!strncmp(argv[2]->arg, "encap-safi", 7)) {
bgp->rfapi_cfg->flags |= BGP_VNC_CONFIG_ADV_UN_METHOD_ENCAP;
} else {
bgp->rfapi_cfg->flags &= ~BGP_VNC_CONFIG_ADV_UN_METHOD_ENCAP;
}
return CMD_SUCCESS;
}
/*-------------------------------------------------------------------------
* RFG defaults
*-----------------------------------------------------------------------*/
DEFUN_NOSH (vnc_defaults,
vnc_defaults_cmd,
"vnc defaults", VNC_CONFIG_STR "Configure default NVE group\n")
{
VTY_DECLVAR_CONTEXT(bgp, bgp);
VNC_VTY_CONFIG_CHECK(bgp);
if (bgp->inst_type != BGP_INSTANCE_TYPE_DEFAULT) {
vty_out(vty, "Malformed community-list value\n");
return CMD_WARNING_CONFIG_FAILED;
}
vty->node = BGP_VNC_DEFAULTS_NODE;
return CMD_SUCCESS;
}
static int set_ecom_list(struct vty *vty, int argc, struct cmd_token **argv,
struct ecommunity **list)
{
struct ecommunity *ecom = NULL;
struct ecommunity *ecomadd;
for (; argc; --argc, ++argv) {
ecomadd = ecommunity_str2com(argv[0]->arg,
ECOMMUNITY_ROUTE_TARGET, 0);
if (!ecomadd) {
vty_out(vty, "Malformed community-list value\n");
if (ecom)
ecommunity_free(&ecom);
return CMD_WARNING_CONFIG_FAILED;
}
if (ecom) {
ecommunity_merge(ecom, ecomadd);
ecommunity_free(&ecomadd);
} else {
ecom = ecomadd;
}
}
if (*list) {
ecommunity_free(&*list);
}
*list = ecom;
return CMD_SUCCESS;
}
DEFUN (vnc_defaults_rt_import,
vnc_defaults_rt_import_cmd,
"rt import RTLIST...",
"Specify default route targets\n"
"Import filter\n"
"Space separated route target list (A.B.C.D:MN|EF:OPQR|GHJK:MN)\n")
{
VTY_DECLVAR_CONTEXT(bgp, bgp);
return set_ecom_list(vty, argc - 2, argv + 2,
&bgp->rfapi_cfg->default_rt_import_list);
}
DEFUN (vnc_defaults_rt_export,
vnc_defaults_rt_export_cmd,
"rt export RTLIST...",
"Configure default route targets\n"
"Export filter\n"
"Space separated route target list (A.B.C.D:MN|EF:OPQR|GHJK:MN)\n")
{
VTY_DECLVAR_CONTEXT(bgp, bgp);
return set_ecom_list(vty, argc - 2, argv + 2,
&bgp->rfapi_cfg->default_rt_export_list);
}
DEFUN (vnc_defaults_rt_both,
vnc_defaults_rt_both_cmd,
"rt both RTLIST...",
"Configure default route targets\n"
"Export+import filters\n"
"Space separated route target list (A.B.C.D:MN|EF:OPQR|GHJK:MN)\n")
{
VTY_DECLVAR_CONTEXT(bgp, bgp);
int rc;
rc = set_ecom_list(vty, argc - 2, argv + 2,
&bgp->rfapi_cfg->default_rt_import_list);
if (rc != CMD_SUCCESS)
return rc;
return set_ecom_list(vty, argc - 2, argv + 2,
&bgp->rfapi_cfg->default_rt_export_list);
}
DEFUN (vnc_defaults_rd,
vnc_defaults_rd_cmd,
"rd ASN:NN_OR_IP-ADDRESS:NN",
"Specify default route distinguisher\n"
"Route Distinguisher (<as-number>:<number> | <ip-address>:<number> | auto:vn:<number> )\n")
{
VTY_DECLVAR_CONTEXT(bgp, bgp);
int ret;
struct prefix_rd prd;
if (!strncmp(argv[1]->arg, "auto:vn:", 8)) {
/*
* use AF_UNIX to designate automatically-assigned RD
* auto:vn:nn where nn is a 2-octet quantity
*/
char *end = NULL;
uint32_t value32 = strtoul(argv[1]->arg + 8, &end, 10);
uint16_t value = value32 & 0xffff;
if (!argv[1]->arg[8] || *end) {
vty_out(vty, "%% Malformed rd\n");
return CMD_WARNING_CONFIG_FAILED;
}
if (value32 > 0xffff) {
vty_out(vty, "%% Malformed rd (must be less than %u\n",
0x0ffff);
return CMD_WARNING_CONFIG_FAILED;
}
memset(&prd, 0, sizeof(prd));
prd.family = AF_UNIX;
prd.prefixlen = 64;
prd.val[0] = (RD_TYPE_IP >> 8) & 0x0ff;
prd.val[1] = RD_TYPE_IP & 0x0ff;
prd.val[6] = (value >> 8) & 0x0ff;
prd.val[7] = value & 0x0ff;
} else {
ret = str2prefix_rd(argv[1]->arg, &prd);
if (!ret) {
vty_out(vty, "%% Malformed rd\n");
return CMD_WARNING_CONFIG_FAILED;
}
}
bgp->rfapi_cfg->default_rd = prd;
return CMD_SUCCESS;
}
DEFUN (vnc_defaults_l2rd,
vnc_defaults_l2rd_cmd,
"l2rd <(1-255)|auto-vn>",
"Specify default Local Nve ID value to use in RD for L2 routes\n"
"Fixed value 1-255\n"
"use the low-order octet of the NVE's VN address\n")
{
VTY_DECLVAR_CONTEXT(bgp, bgp);
uint8_t value = 0;
if (strmatch(argv[1]->text, "auto-vn")) {
value = 0;
} else {
char *end = NULL;
unsigned long value_l = strtoul(argv[1]->arg, &end, 10);
value = value_l & 0xff;
if (!argv[1]->arg[0] || *end) {
vty_out(vty, "%% Malformed l2 nve ID \"%s\"\n",
argv[1]->arg);
return CMD_WARNING_CONFIG_FAILED;
}
if ((value_l < 1) || (value_l > 0xff)) {
vty_out(vty,
"%% Malformed l2 nve id (must be greater than 0 and less than %u\n",
0x100);
return CMD_WARNING_CONFIG_FAILED;
}
}
bgp->rfapi_cfg->flags |= BGP_VNC_CONFIG_L2RD;
bgp->rfapi_cfg->default_l2rd = value;
return CMD_SUCCESS;
}
DEFUN (vnc_defaults_no_l2rd,
vnc_defaults_no_l2rd_cmd,
"no l2rd",
NO_STR
"Specify default Local Nve ID value to use in RD for L2 routes\n")
{
VTY_DECLVAR_CONTEXT(bgp, bgp);
bgp->rfapi_cfg->default_l2rd = 0;
bgp->rfapi_cfg->flags &= ~BGP_VNC_CONFIG_L2RD;
return CMD_SUCCESS;
}
DEFUN (vnc_defaults_responselifetime,
vnc_defaults_responselifetime_cmd,
"response-lifetime <LIFETIME|infinite>",
"Specify default response lifetime\n"
"Response lifetime in seconds\n" "Infinite response lifetime\n")
{
VTY_DECLVAR_CONTEXT(bgp, bgp);
uint32_t rspint;
struct rfapi *h = NULL;
struct listnode *hdnode;
struct rfapi_descriptor *rfd;
h = bgp->rfapi;
if (!h)
return CMD_WARNING_CONFIG_FAILED;
if (strmatch(argv[1]->text, "infinite")) {
rspint = RFAPI_INFINITE_LIFETIME;
} else {
rspint = strtoul(argv[1]->arg, NULL, 10);
if (rspint > INT32_MAX)
rspint = INT32_MAX; /* is really an int, not an unsigned
int */
}
bgp->rfapi_cfg->default_response_lifetime = rspint;
for (ALL_LIST_ELEMENTS_RO(&h->descriptors, hdnode, rfd))
if (rfd->rfg
&& !(rfd->rfg->flags & RFAPI_RFG_RESPONSE_LIFETIME))
rfd->response_lifetime = rfd->rfg->response_lifetime =
rspint;
return CMD_SUCCESS;
}
struct rfapi_nve_group_cfg *
bgp_rfapi_cfg_match_byname(struct bgp *bgp, const char *name,
rfapi_group_cfg_type_t type) /* _MAX = any */
{
struct rfapi_nve_group_cfg *rfg;
struct listnode *node, *nnode;
for (ALL_LIST_ELEMENTS(bgp->rfapi_cfg->nve_groups_sequential, node,
nnode, rfg)) {
if ((type == RFAPI_GROUP_CFG_MAX || type == rfg->type)
&& !strcmp(rfg->name, name))
return rfg;
}
return NULL;
}
static struct rfapi_nve_group_cfg *
rfapi_group_new(struct bgp *bgp, rfapi_group_cfg_type_t type, const char *name)
{
struct rfapi_nve_group_cfg *rfg;
rfg = XCALLOC(MTYPE_RFAPI_GROUP_CFG,
sizeof(struct rfapi_nve_group_cfg));
rfg->type = type;
rfg->name = strdup(name);
/* add to tail of list */
listnode_add(bgp->rfapi_cfg->nve_groups_sequential, rfg);
rfg->label = MPLS_LABEL_NONE;
QOBJ_REG(rfg, rfapi_nve_group_cfg);
return rfg;
}
static struct rfapi_l2_group_cfg *rfapi_l2_group_lookup_byname(struct bgp *bgp,
const char *name)
{
struct rfapi_l2_group_cfg *rfg;
struct listnode *node, *nnode;
if (bgp->rfapi_cfg->l2_groups == NULL) /* not the best place for this */
bgp->rfapi_cfg->l2_groups = list_new();
for (ALL_LIST_ELEMENTS(bgp->rfapi_cfg->l2_groups, node, nnode, rfg)) {
if (!strcmp(rfg->name, name))
return rfg;
}
return NULL;
}
static struct rfapi_l2_group_cfg *rfapi_l2_group_new()
{
struct rfapi_l2_group_cfg *rfg;
rfg = XCALLOC(MTYPE_RFAPI_L2_CFG, sizeof(struct rfapi_l2_group_cfg));
QOBJ_REG(rfg, rfapi_l2_group_cfg);
return rfg;
}
static void rfapi_l2_group_del(struct rfapi_l2_group_cfg *rfg)
{
QOBJ_UNREG(rfg);
XFREE(MTYPE_RFAPI_L2_CFG, rfg);
}
static int rfapi_str2route_type(const char *l3str, const char *pstr, afi_t *afi,
int *type)
{
if (!l3str || !pstr)
return EINVAL;
if (!strcmp(l3str, "ipv4")) {
*afi = AFI_IP;
} else {
if (!strcmp(l3str, "ipv6"))
*afi = AFI_IP6;
else
return ENOENT;
}
if (!strcmp(pstr, "connected"))
*type = ZEBRA_ROUTE_CONNECT;
if (!strcmp(pstr, "kernel"))
*type = ZEBRA_ROUTE_KERNEL;
if (!strcmp(pstr, "static"))
*type = ZEBRA_ROUTE_STATIC;
if (!strcmp(pstr, "bgp"))
*type = ZEBRA_ROUTE_BGP;
if (!strcmp(pstr, "bgp-direct"))
*type = ZEBRA_ROUTE_BGP_DIRECT;
if (!strcmp(pstr, "bgp-direct-to-nve-groups"))
*type = ZEBRA_ROUTE_BGP_DIRECT_EXT;
if (!strcmp(pstr, "rip")) {
if (*afi == AFI_IP)
*type = ZEBRA_ROUTE_RIP;
else
*type = ZEBRA_ROUTE_RIPNG;
}
if (!strcmp(pstr, "ripng")) {
if (*afi == AFI_IP)
return EAFNOSUPPORT;
*type = ZEBRA_ROUTE_RIPNG;
}
if (!strcmp(pstr, "ospf")) {
if (*afi == AFI_IP)
*type = ZEBRA_ROUTE_OSPF;
else
*type = ZEBRA_ROUTE_OSPF6;
}
if (!strcmp(pstr, "ospf6")) {
if (*afi == AFI_IP)
return EAFNOSUPPORT;
*type = ZEBRA_ROUTE_OSPF6;
}
return 0;
}
/*-------------------------------------------------------------------------
* redistribute
*-----------------------------------------------------------------------*/
#define VNC_REDIST_ENABLE(bgp, afi, type) \
do { \
switch (type) { \
case ZEBRA_ROUTE_BGP_DIRECT: \
vnc_import_bgp_redist_enable((bgp), (afi)); \
break; \
case ZEBRA_ROUTE_BGP_DIRECT_EXT: \
vnc_import_bgp_exterior_redist_enable((bgp), (afi)); \
break; \
default: \
if ((type) < ZEBRA_ROUTE_MAX) \
vnc_redistribute_set((bgp), (afi), (type)); \
break; \
} \
} while (0)
#define VNC_REDIST_DISABLE(bgp, afi, type) \
do { \
switch (type) { \
case ZEBRA_ROUTE_BGP_DIRECT: \
vnc_import_bgp_redist_disable((bgp), (afi)); \
break; \
case ZEBRA_ROUTE_BGP_DIRECT_EXT: \
vnc_import_bgp_exterior_redist_disable((bgp), (afi)); \
break; \
default: \
if ((type) < ZEBRA_ROUTE_MAX) \
vnc_redistribute_unset((bgp), (afi), (type)); \
break; \
} \
} while (0)
static uint8_t redist_was_enabled[AFI_MAX][ZEBRA_ROUTE_MAX];
static void vnc_redistribute_prechange(struct bgp *bgp)
{
afi_t afi;
int type;
vnc_zlog_debug_verbose("%s: entry", __func__);
memset(redist_was_enabled, 0, sizeof(redist_was_enabled));
/*
* Look to see if we have any redistribution enabled. If so, flush
* the corresponding routes and turn off redistribution temporarily.
* We need to do it because the RD's used for the redistributed
* routes depend on the nve group.
*/
for (afi = AFI_IP; afi < AFI_MAX; ++afi) {
for (type = 0; type < ZEBRA_ROUTE_MAX; ++type) {
if (bgp->rfapi_cfg->redist[afi][type]) {
redist_was_enabled[afi][type] = 1;
VNC_REDIST_DISABLE(bgp, afi, type);
}
}
}
vnc_zlog_debug_verbose("%s: return", __func__);
}
static void vnc_redistribute_postchange(struct bgp *bgp)
{
afi_t afi;
int type;
vnc_zlog_debug_verbose("%s: entry", __func__);
/*
* If we turned off redistribution above, turn it back on. Doing so
* will tell zebra to resend the routes to us
*/
for (afi = AFI_IP; afi < AFI_MAX; ++afi) {
for (type = 0; type < ZEBRA_ROUTE_MAX; ++type) {
if (redist_was_enabled[afi][type]) {
VNC_REDIST_ENABLE(bgp, afi, type);
}
}
}
vnc_zlog_debug_verbose("%s: return", __func__);
}
DEFUN (vnc_redistribute_rh_roo_localadmin,
vnc_redistribute_rh_roo_localadmin_cmd,
"vnc redistribute resolve-nve roo-ec-local-admin (0-65535)",
VNC_CONFIG_STR
"Redistribute routes into VNC\n"
"Resolve-NVE mode\n"
"Route Origin Extended Community Local Admin Field\n" "Field value\n")
{
VTY_DECLVAR_CONTEXT(bgp, bgp);
uint32_t localadmin;
char *endptr;
VNC_VTY_CONFIG_CHECK(bgp);
localadmin = strtoul(argv[4]->arg, &endptr, 0);
if (!argv[4]->arg[0] || *endptr) {
vty_out(vty, "%% Malformed value\n");
return CMD_WARNING_CONFIG_FAILED;
}
if (localadmin > 0xffff) {
vty_out(vty, "%% Value out of range (0-%d)\n", 0xffff);
return CMD_WARNING_CONFIG_FAILED;
}
if (bgp->rfapi_cfg->resolve_nve_roo_local_admin == localadmin)
return CMD_SUCCESS;
if ((bgp->rfapi_cfg->flags & BGP_VNC_CONFIG_EXPORT_BGP_MODE_BITS)
== BGP_VNC_CONFIG_EXPORT_BGP_MODE_CE) {
vnc_export_bgp_prechange(bgp);
}
vnc_redistribute_prechange(bgp);
bgp->rfapi_cfg->resolve_nve_roo_local_admin = localadmin;
if ((bgp->rfapi_cfg->flags & BGP_VNC_CONFIG_EXPORT_BGP_MODE_BITS)
== BGP_VNC_CONFIG_EXPORT_BGP_MODE_CE) {
vnc_export_bgp_postchange(bgp);
}
vnc_redistribute_postchange(bgp);
return CMD_SUCCESS;
}
DEFUN (vnc_redistribute_mode,
vnc_redistribute_mode_cmd,
"vnc redistribute mode <nve-group|plain|resolve-nve>",
VNC_CONFIG_STR
"Redistribute routes into VNC\n"
"Redistribution mode\n"
"Based on redistribute nve-group\n"
"Unmodified\n" "Resolve each nexthop to connected NVEs\n")
{
VTY_DECLVAR_CONTEXT(bgp, bgp);
vnc_redist_mode_t newmode;
VNC_VTY_CONFIG_CHECK(bgp);
switch (argv[3]->arg[0]) {
case 'n':
newmode = VNC_REDIST_MODE_RFG;
break;
case 'p':
newmode = VNC_REDIST_MODE_PLAIN;
break;
case 'r':
newmode = VNC_REDIST_MODE_RESOLVE_NVE;
break;
default:
vty_out(vty, "unknown redistribute mode\n");
return CMD_WARNING_CONFIG_FAILED;
}
if (newmode != bgp->rfapi_cfg->redist_mode) {
vnc_redistribute_prechange(bgp);
bgp->rfapi_cfg->redist_mode = newmode;
vnc_redistribute_postchange(bgp);
}
return CMD_SUCCESS;
}
DEFUN (vnc_redistribute_protocol,
vnc_redistribute_protocol_cmd,
"vnc redistribute <ipv4|ipv6> <bgp|bgp-direct|bgp-direct-to-nve-groups|connected|kernel|ospf|rip|static>",
VNC_CONFIG_STR
"Redistribute routes into VNC\n"
"IPv4 routes\n"
"IPv6 routes\n"
"From BGP\n"
"From BGP without Zebra\n"
"From BGP without Zebra, only to configured NVE groups\n"
"Connected interfaces\n"
"From kernel routes\n"
"From Open Shortest Path First (OSPF)\n"
"From Routing Information Protocol (RIP)\n" "From Static routes\n")
{
VTY_DECLVAR_CONTEXT(bgp, bgp);
int type = ZEBRA_ROUTE_MAX; /* init to bogus value */
afi_t afi;
VNC_VTY_CONFIG_CHECK(bgp);
if (rfapi_str2route_type(argv[2]->arg, argv[3]->arg, &afi, &type)) {
vty_out(vty, "%% Invalid route type\n");
return CMD_WARNING_CONFIG_FAILED;
}
if (type == ZEBRA_ROUTE_BGP_DIRECT_EXT) {
if (bgp->rfapi_cfg->redist_bgp_exterior_view_name) {
VNC_REDIST_DISABLE(bgp, afi,
type); /* disabled view implicitly */
free(bgp->rfapi_cfg->redist_bgp_exterior_view_name);
bgp->rfapi_cfg->redist_bgp_exterior_view_name = NULL;
}
bgp->rfapi_cfg->redist_bgp_exterior_view = bgp;
}
VNC_REDIST_ENABLE(bgp, afi, type);
return CMD_SUCCESS;
}
DEFUN (vnc_no_redistribute_protocol,
vnc_no_redistribute_protocol_cmd,
"no vnc redistribute <ipv4|ipv6> <bgp|bgp-direct|bgp-direct-to-nve-groups|connected|kernel|ospf|rip|static>",
NO_STR
VNC_CONFIG_STR
"Redistribute from other protocol\n"
"IPv4 routes\n"
"IPv6 routes\n"
"From BGP\n"
"From BGP without Zebra\n"
"From BGP without Zebra, only to configured NVE groups\n"
"Connected interfaces\n"
"From kernel routes\n"
"From Open Shortest Path First (OSPF)\n"
"From Routing Information Protocol (RIP)\n" "From Static routes\n")
{
VTY_DECLVAR_CONTEXT(bgp, bgp);
int type;
afi_t afi;
VNC_VTY_CONFIG_CHECK(bgp);
if (rfapi_str2route_type(argv[3]->arg, argv[4]->arg, &afi, &type)) {
vty_out(vty, "%% Invalid route type\n");
return CMD_WARNING_CONFIG_FAILED;
}
VNC_REDIST_DISABLE(bgp, afi, type);
if (type == ZEBRA_ROUTE_BGP_DIRECT_EXT) {
if (bgp->rfapi_cfg->redist_bgp_exterior_view_name) {
free(bgp->rfapi_cfg->redist_bgp_exterior_view_name);
bgp->rfapi_cfg->redist_bgp_exterior_view_name = NULL;
}
bgp->rfapi_cfg->redist_bgp_exterior_view = NULL;
}
return CMD_SUCCESS;
}
DEFUN (vnc_redistribute_bgp_exterior,
vnc_redistribute_bgp_exterior_cmd,
"vnc redistribute <ipv4|ipv6> bgp-direct-to-nve-groups view NAME",
VNC_CONFIG_STR
"Redistribute routes into VNC\n"
"IPv4 routes\n"
"IPv6 routes\n"
"From BGP without Zebra, only to configured NVE groups\n"
"From BGP view\n" "BGP view name\n")
{
VTY_DECLVAR_CONTEXT(bgp, bgp);
int type;
afi_t afi;
VNC_VTY_CONFIG_CHECK(bgp);
if (rfapi_str2route_type(argv[2]->arg, "bgp-direct-to-nve-groups", &afi,
&type)) {
vty_out(vty, "%% Invalid route type\n");
return CMD_WARNING_CONFIG_FAILED;
}
if (bgp->rfapi_cfg->redist_bgp_exterior_view_name)
free(bgp->rfapi_cfg->redist_bgp_exterior_view_name);
bgp->rfapi_cfg->redist_bgp_exterior_view_name = strdup(argv[5]->arg);
/* could be NULL if name is not defined yet */
bgp->rfapi_cfg->redist_bgp_exterior_view =
bgp_lookup_by_name(argv[5]->arg);
VNC_REDIST_ENABLE(bgp, afi, type);
return CMD_SUCCESS;
}
DEFUN (vnc_redistribute_nvegroup,
vnc_redistribute_nvegroup_cmd,
"vnc redistribute nve-group NAME",
VNC_CONFIG_STR
"Assign a NVE group to routes redistributed from another routing protocol\n"
"NVE group\n" "Group name\n")
{
VTY_DECLVAR_CONTEXT(bgp, bgp);
VNC_VTY_CONFIG_CHECK(bgp);
vnc_redistribute_prechange(bgp);
/*
* OK if nve group doesn't exist yet; we'll set the pointer
* when the group is defined later
*/
bgp->rfapi_cfg->rfg_redist = bgp_rfapi_cfg_match_byname(
bgp, argv[3]->arg, RFAPI_GROUP_CFG_NVE);
if (bgp->rfapi_cfg->rfg_redist_name)
free(bgp->rfapi_cfg->rfg_redist_name);
bgp->rfapi_cfg->rfg_redist_name = strdup(argv[3]->arg);
vnc_redistribute_postchange(bgp);
return CMD_SUCCESS;
}
DEFUN (vnc_redistribute_no_nvegroup,
vnc_redistribute_no_nvegroup_cmd,
"no vnc redistribute nve-group",
NO_STR
VNC_CONFIG_STR
"Redistribute from other protocol\n"
"Assign a NVE group to routes redistributed from another routing protocol\n")
{
VTY_DECLVAR_CONTEXT(bgp, bgp);
VNC_VTY_CONFIG_CHECK(bgp);
vnc_redistribute_prechange(bgp);
bgp->rfapi_cfg->rfg_redist = NULL;
if (bgp->rfapi_cfg->rfg_redist_name)
free(bgp->rfapi_cfg->rfg_redist_name);
bgp->rfapi_cfg->rfg_redist_name = NULL;
vnc_redistribute_postchange(bgp);
return CMD_SUCCESS;
}
DEFUN (vnc_redistribute_lifetime,
vnc_redistribute_lifetime_cmd,
"vnc redistribute lifetime <LIFETIME|infinite>",
VNC_CONFIG_STR
"Redistribute\n"
"Assign a lifetime to routes redistributed from another routing protocol\n"
"lifetime value (32 bit)\n"
"Allow lifetime to never expire\n")
{
VTY_DECLVAR_CONTEXT(bgp, bgp);
VNC_VTY_CONFIG_CHECK(bgp);