diff options
| -rw-r--r-- | bgpd/bgp_mplsvpn_snmp.c | 283 | ||||
| -rw-r--r-- | bgpd/bgp_mplsvpn_snmp.h | 21 | ||||
| -rw-r--r-- | bgpd/bgp_snmp.c | 2 | ||||
| -rw-r--r-- | bgpd/subdir.am | 3 |
4 files changed, 308 insertions, 1 deletions
diff --git a/bgpd/bgp_mplsvpn_snmp.c b/bgpd/bgp_mplsvpn_snmp.c new file mode 100644 index 0000000000..0a8d39cb95 --- /dev/null +++ b/bgpd/bgp_mplsvpn_snmp.c @@ -0,0 +1,283 @@ +/* MPLS/BGP L3VPN MIB + * Copyright (C) 2020 Volta Networks Inc + * + * This file is part of FRR. + * + * FRRouting 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. + * + * FRRouting 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 <net-snmp/net-snmp-config.h> +#include <net-snmp/net-snmp-includes.h> + +#include "if.h" +#include "log.h" +#include "prefix.h" +#include "command.h" +#include "thread.h" +#include "smux.h" +#include "filter.h" +#include "hook.h" +#include "libfrr.h" +#include "version.h" + +#include "bgpd/bgpd.h" +#include "bgpd/bgp_mplsvpn.h" +#include "bgpd/bgp_mplsvpn_snmp.h" + +#define BGP_mplsvpn_notif_enable_true 1 +#define BGP_mplsvpn_notif_enable_false 2 + +static uint8_t bgp_mplsvpn_notif_enable = SNMP_FALSE; + +/* MPLSL3VPN MIB described in RFC4382 */ +#define MPLSL3VPNMIB 1, 3, 6, 1, 2, 1, 10, 166, 11 + +/* MPLSL3VPN Scalars */ +#define MPLSL3VPNCONFIGUREDVRFS 1 +#define MPLSL3VPNACTIVEVRFS 2 +#define MPLSL3VPNCONNECTEDINTERFACES 3 +#define MPLSL3VPNNOTIFICATIONENABLE 4 +#define MPLSL3VPNCONFMAXPOSSRTS 5 +#define MPLSL3VPNVRFCONFRTEMXTHRSHTIME 6 +#define MPLSL3VPNILLLBLRCVTHRSH 7 + +/* SNMP value hack. */ +#define INTEGER ASN_INTEGER +#define INTEGER32 ASN_INTEGER +#define COUNTER32 ASN_COUNTER +#define OCTET_STRING ASN_OCTET_STR +#define IPADDRESS ASN_IPADDRESS +#define GAUGE32 ASN_UNSIGNED + +/* Declare static local variables for convenience. */ +SNMP_LOCAL_VARIABLES + +/* BGP-MPLS-MIB innstances */ +static oid mpls_l3vpn_oid[] = {MPLSL3VPNMIB}; + +static uint8_t *mplsL3vpnConfiguredVrfs(struct variable *, oid[], size_t *, int, + size_t *, WriteMethod **); + +static uint8_t *mplsL3vpnActiveVrfs(struct variable *, oid[], size_t *, int, + size_t *, WriteMethod **); + +static uint8_t *mplsL3vpnConnectedInterfaces(struct variable *, oid[], size_t *, + int, size_t *, WriteMethod **); + +static uint8_t *mplsL3vpnNotificationEnable(struct variable *, oid[], size_t *, + int, size_t *, WriteMethod **); + +static uint8_t *mplsL3vpnVrfConfMaxPossRts(struct variable *, oid[], size_t *, + int, size_t *, WriteMethod **); + +static uint8_t *mplsL3vpnVrfConfRteMxThrshTime(struct variable *, oid[], + size_t *, int, size_t *, + WriteMethod **); + +static uint8_t *mplsL3vpnIllLblRcvThrsh(struct variable *, oid[], size_t *, int, + size_t *, WriteMethod **); + +static struct variable mpls_l3vpn_variables[] = { + /* BGP version. */ + {MPLSL3VPNCONFIGUREDVRFS, + GAUGE32, + RONLY, + mplsL3vpnConfiguredVrfs, + 3, + {1, 1, 1} }, + {MPLSL3VPNACTIVEVRFS, + GAUGE32, + RONLY, + mplsL3vpnActiveVrfs, + 3, + {1, 1, 2} }, + {MPLSL3VPNCONNECTEDINTERFACES, + GAUGE32, + RONLY, + mplsL3vpnConnectedInterfaces, + 3, + {1, 1, 3} }, + {MPLSL3VPNNOTIFICATIONENABLE, + INTEGER, + RWRITE, + mplsL3vpnNotificationEnable, + 3, + {1, 1, 4} }, + {MPLSL3VPNCONFMAXPOSSRTS, + GAUGE32, + RONLY, + mplsL3vpnVrfConfMaxPossRts, + 3, + {1, 1, 5} }, + {MPLSL3VPNVRFCONFRTEMXTHRSHTIME, + GAUGE32, + RONLY, + mplsL3vpnVrfConfRteMxThrshTime, + 3, + {1, 1, 6} }, + {MPLSL3VPNILLLBLRCVTHRSH, + GAUGE32, + RONLY, + mplsL3vpnIllLblRcvThrsh, + 3, + {1, 1, 7} }, + +}; + +static uint8_t *mplsL3vpnConfiguredVrfs(struct variable *v, oid name[], + size_t *length, int exact, + size_t *var_len, + WriteMethod **write_method) +{ + struct listnode *node, *nnode; + struct bgp *bgp; + uint32_t count = 0; + + if (smux_header_generic(v, name, length, exact, var_len, write_method) + == MATCH_FAILED) + return NULL; + + for (ALL_LIST_ELEMENTS(bm->bgp, node, nnode, bgp)) { + if (is_bgp_vrf_mplsvpn(bgp)) + count++; + } + return SNMP_INTEGER(count); +} + +static uint8_t *mplsL3vpnActiveVrfs(struct variable *v, oid name[], + size_t *length, int exact, size_t *var_len, + WriteMethod **write_method) +{ + struct listnode *node, *nnode; + struct bgp *bgp; + uint32_t count = 0; + + if (smux_header_generic(v, name, length, exact, var_len, write_method) + == MATCH_FAILED) + return NULL; + + for (ALL_LIST_ELEMENTS(bm->bgp, node, nnode, bgp)) { + if (is_bgp_vrf_mplsvpn(bgp) && is_bgp_vrf_active(bgp)) + count++; + } + return SNMP_INTEGER(count); +} + +static uint8_t *mplsL3vpnConnectedInterfaces(struct variable *v, oid name[], + size_t *length, int exact, + size_t *var_len, + WriteMethod **write_method) +{ + struct listnode *node, *nnode; + struct bgp *bgp; + uint32_t count = 0; + struct vrf *vrf; + + if (smux_header_generic(v, name, length, exact, var_len, write_method) + == MATCH_FAILED) + return NULL; + + for (ALL_LIST_ELEMENTS(bm->bgp, node, nnode, bgp)) { + if (is_bgp_vrf_mplsvpn(bgp)) { + vrf = vrf_lookup_by_name(bgp->name); + if (vrf == NULL) + continue; + + count += vrf_interface_count(vrf); + } + } + + return SNMP_INTEGER(count); +} + +static int write_mplsL3vpnNotificationEnable(int action, uint8_t *var_val, + uint8_t var_val_type, + size_t var_val_len, uint8_t *statP, + oid *name, size_t length) +{ + uint32_t intval; + + zlog_debug("PJDR: %s", __func__); + if (var_val_type != ASN_INTEGER) { + return SNMP_ERR_WRONGTYPE; + } + + if (var_val_len != sizeof(long)) { + return SNMP_ERR_WRONGLENGTH; + } + + intval = *(long *)var_val; + bgp_mplsvpn_notif_enable = intval; + return SNMP_ERR_NOERROR; +} + +static uint8_t *mplsL3vpnNotificationEnable(struct variable *v, oid name[], + size_t *length, int exact, + size_t *var_len, + WriteMethod **write_method) +{ + if (smux_header_generic(v, name, length, exact, var_len, write_method) + == MATCH_FAILED) + return NULL; + + zlog_debug("PJDR: %s", __func__); + *write_method = write_mplsL3vpnNotificationEnable; + return SNMP_INTEGER(bgp_mplsvpn_notif_enable); +} + +static uint8_t *mplsL3vpnVrfConfMaxPossRts(struct variable *v, oid name[], + size_t *length, int exact, + size_t *var_len, + WriteMethod **write_method) +{ + if (smux_header_generic(v, name, length, exact, var_len, write_method) + == MATCH_FAILED) + return NULL; + + return SNMP_INTEGER(0); +} + +static uint8_t *mplsL3vpnVrfConfRteMxThrshTime(struct variable *v, oid name[], + size_t *length, int exact, + size_t *var_len, + WriteMethod **write_method) +{ + if (smux_header_generic(v, name, length, exact, var_len, write_method) + == MATCH_FAILED) + return NULL; + + return SNMP_INTEGER(0); +} + +static uint8_t *mplsL3vpnIllLblRcvThrsh(struct variable *v, oid name[], + size_t *length, int exact, + size_t *var_len, + WriteMethod **write_method) +{ + if (smux_header_generic(v, name, length, exact, var_len, write_method) + == MATCH_FAILED) + return NULL; + + return SNMP_INTEGER(0); +} + + +void bgp_mpls_l3vpn_module_init(void) +{ + REGISTER_MIB("mplsL3VpnMIB", mpls_l3vpn_variables, variable, + mpls_l3vpn_oid); +} diff --git a/bgpd/bgp_mplsvpn_snmp.h b/bgpd/bgp_mplsvpn_snmp.h new file mode 100644 index 0000000000..21f747c8ed --- /dev/null +++ b/bgpd/bgp_mplsvpn_snmp.h @@ -0,0 +1,21 @@ +/* MPLS/BGP L3VPN MIB + * Copyright (C) 2020 Volta Networks Inc + * + * This file is part of FRR. + * + * FRRouting 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. + * + * FRRouting 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 + */ + +void bgp_mpls_l3vpn_module_init(void); diff --git a/bgpd/bgp_snmp.c b/bgpd/bgp_snmp.c index 303f4ca56e..76f8b8712b 100644 --- a/bgpd/bgp_snmp.c +++ b/bgpd/bgp_snmp.c @@ -40,6 +40,7 @@ #include "bgpd/bgp_attr.h" #include "bgpd/bgp_route.h" #include "bgpd/bgp_fsm.h" +#include "bgpd/bgp_mplsvpn_snmp.h" /* BGP4-MIB described in RFC1657. */ #define BGP4MIB 1,3,6,1,2,1,15 @@ -898,6 +899,7 @@ static int bgp_snmp_init(struct thread_master *tm) { smux_init(tm); REGISTER_MIB("mibII/bgp", bgp_variables, variable, bgp_oid); + bgp_mpls_l3vpn_module_init(); return 0; } diff --git a/bgpd/subdir.am b/bgpd/subdir.am index df1555c32a..4614363bf0 100644 --- a/bgpd/subdir.am +++ b/bgpd/subdir.am @@ -167,6 +167,7 @@ noinst_HEADERS += \ bgpd/bgp_memory.h \ bgpd/bgp_mpath.h \ bgpd/bgp_mplsvpn.h \ + bgpd/bgp_mplsvpn_snmp.h \ bgpd/bgp_network.h \ bgpd/bgp_nexthop.h \ bgpd/bgp_nht.h \ @@ -218,7 +219,7 @@ bgpd_bgp_btoa_CFLAGS = $(AM_CFLAGS) bgpd_bgpd_LDADD = bgpd/libbgp.a $(RFPLDADD) lib/libfrr.la $(LIBCAP) $(LIBM) $(UST_LIBS) bgpd_bgp_btoa_LDADD = bgpd/libbgp.a $(RFPLDADD) lib/libfrr.la $(LIBCAP) $(LIBM) $(UST_LIBS) -bgpd_bgpd_snmp_la_SOURCES = bgpd/bgp_snmp.c +bgpd_bgpd_snmp_la_SOURCES = bgpd/bgp_snmp.c bgpd/bgp_mplsvpn_snmp.c bgpd_bgpd_snmp_la_CFLAGS = $(WERROR) $(SNMP_CFLAGS) -std=gnu99 bgpd_bgpd_snmp_la_LDFLAGS = -avoid-version -module -shared -export-dynamic bgpd_bgpd_snmp_la_LIBADD = lib/libfrrsnmp.la |