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Diffstat (limited to '')
| -rw-r--r-- | pbrd/pbr_map.h | 238 |
1 files changed, 238 insertions, 0 deletions
diff --git a/pbrd/pbr_map.h b/pbrd/pbr_map.h new file mode 100644 index 0000000..3527523 --- /dev/null +++ b/pbrd/pbr_map.h @@ -0,0 +1,238 @@ +/* + * PBR-map Header + * Copyright (C) 2018 Cumulus Networks, Inc. + * Donald Sharp + * + * FRR 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. + * + * FRR 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 + */ +#ifndef __PBR_MAP_H__ +#define __PBR_MAP_H__ + +#include <bitfield.h> + +#include "pbr_vrf.h" + +struct pbr_map { + /* + * RB Tree of the pbr_maps + */ + RB_ENTRY(pbr_map) pbr_map_entry; + + /* + * The name of the PBR_MAP + */ +#define PBR_MAP_NAMELEN 100 + char name[PBR_MAP_NAMELEN]; + + struct list *seqnumbers; + + /* + * The list of incoming interfaces that + * we will apply this policy map onto + */ + struct list *incoming; + + bitfield_t ifi_bitfield; + /* + * If valid is true we think the pbr_map is valid, + * If false, look in individual pbrms to see + * what we think is the invalid reason + */ + bool valid; +}; + +RB_HEAD(pbr_map_entry_head, pbr_map); +RB_PROTOTYPE(pbr_map_entry_head, pbr_map, pbr_map_entry, pbr_map_compare) + +struct pbr_map_interface { + uint32_t install_bit; + + struct interface *ifp; + + struct pbr_map *pbrm; + + bool delete; +}; + +struct pbr_map_sequence { + struct pbr_map *parent; + + /* + * The Unique identifier of this specific pbrms + */ + uint32_t unique; + + /* + * The sequence of where we are for display + */ + uint32_t seqno; + + /* + * The rule number to install into + */ + uint32_t ruleno; + + /* + * src and dst ports + */ + uint16_t src_prt; + uint16_t dst_prt; + + /* + * The ip protocol we want to match on + */ + uint8_t ip_proto; + + /* + * Our policy Catchers + */ + struct prefix *src; + struct prefix *dst; + uint8_t dsfield; + uint32_t mark; + + /* + * Actions + */ + uint8_t action_pcp; + uint8_t action_vlan_id; +#define PBR_MAP_STRIP_INNER_ANY (1 << 0) + uint8_t action_vlan_flags; + +#define PBR_MAP_UNDEFINED_QUEUE_ID 0 + uint32_t action_queue_id; + + /* + * Family of the src/dst. Needed when deleting since we clear them + */ + unsigned char family; + + /* + * Use interface's vrf. + */ + bool vrf_unchanged; + + /* + * The vrf to lookup in was directly configured. + */ + bool vrf_lookup; + + /* + * VRF to lookup. + */ + char vrf_name[VRF_NAMSIZ + 1]; + + /* + * The nexthop group we auto create + * for when the user specifies a individual + * nexthop + */ + struct nexthop_group *nhg; + char *internal_nhg_name; + + /* + * The name of the nexthop group + * configured in the pbr-map + */ + char *nhgrp_name; + + /* + * Do we think are nexthops are installed + */ + bool nhs_installed; + + /* + * Are we installed + */ + uint64_t installed; + + /* + * A reason of 0 means we think the pbr_map_sequence is good to go + * We can accumuluate multiple failure states + */ +#define PBR_MAP_VALID_SEQUENCE_NUMBER 0 +#define PBR_MAP_INVALID_NEXTHOP_GROUP (1 << 0) +#define PBR_MAP_INVALID_NEXTHOP (1 << 1) +#define PBR_MAP_INVALID_NO_NEXTHOPS (1 << 2) +#define PBR_MAP_INVALID_BOTH_NHANDGRP (1 << 3) +#define PBR_MAP_INVALID_EMPTY (1 << 4) +#define PBR_MAP_INVALID_VRF (1 << 5) +#define PBR_MAP_INVALID_SET_STRIP_VLAN (1 << 6) + uint64_t reason; + + QOBJ_FIELDS; +}; + +DECLARE_QOBJ_TYPE(pbr_map_sequence); + +extern struct pbr_map_entry_head pbr_maps; + +extern struct pbr_map_sequence *pbrms_get(const char *name, uint32_t seqno); +extern struct pbr_map_sequence * +pbrms_lookup_unique(uint32_t unique, char *ifname, + struct pbr_map_interface **ppmi); + +extern struct pbr_map *pbrm_find(const char *name); +extern void pbr_map_delete(struct pbr_map_sequence *pbrms); +extern void pbr_map_delete_nexthops(struct pbr_map_sequence *pbrms); +extern void pbr_map_delete_vrf(struct pbr_map_sequence *pbrms); +extern void pbr_map_add_interface(struct pbr_map *pbrm, struct interface *ifp); +extern void pbr_map_interface_delete(struct pbr_map *pbrm, + struct interface *ifp); + +extern uint8_t pbr_map_decode_dscp_enum(const char *name); + +/* Update maps installed on interface */ +extern void pbr_map_policy_interface_update(const struct interface *ifp, + bool state_up); + +extern void pbr_map_final_interface_deletion(struct pbr_map *pbrm, + struct pbr_map_interface *pmi); + +extern void pbr_map_vrf_update(const struct pbr_vrf *pbr_vrf); + +extern void pbr_map_write_interfaces(struct vty *vty, struct interface *ifp); +extern void pbr_map_init(void); + +extern bool pbr_map_check_valid(const char *name); + +/** + * Re-check the pbr map for validity. + * + * Install if valid, remove if not. + * + * If changed is set, the config on the on the map has changed somewhere + * and the rules need to be replaced if valid. + */ +extern void pbr_map_check(struct pbr_map_sequence *pbrms, bool changed); +extern void pbr_map_check_nh_group_change(const char *nh_group); +extern void pbr_map_reason_string(unsigned int reason, char *buf, int size); + +extern void pbr_map_schedule_policy_from_nhg(const char *nh_group, + bool installed); + +extern void pbr_map_install(struct pbr_map *pbrm); + +extern void pbr_map_policy_install(const char *name); +extern void pbr_map_policy_delete(struct pbr_map *pbrm, + struct pbr_map_interface *pmi); + +extern void pbr_map_check_vrf_nh_group_change(const char *nh_group, + struct pbr_vrf *pbr_vrf, + uint32_t old_vrf_id); +extern void pbr_map_check_interface_nh_group_change(const char *nh_group, + struct interface *ifp, + ifindex_t oldifindex); +#endif |