projects / mirror_frr.git / blame
| Commit | Line | Data |
|---|---|---|
| 0031a6bb PG |
1 | /* Policy Based Routing (PBR) main header |
| 2 | * Copyright (C) 2018 6WIND | |
| 3 | * | |
| 4 | * FRR is free software; you can redistribute it and/or modify it | |
| 5 | * under the terms of the GNU General Public License as published by the | |
| 6 | * Free Software Foundation; either version 2, or (at your option) any | |
| 7 | * later version. | |
| 8 | * | |
| 9 | * FRR is distributed in the hope that it will be useful, but | |
| 10 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 12 | * General Public License for more details. | |
| 13 | * | |
| 14 | * You should have received a copy of the GNU General Public License | |
| 15 | * along with FRR; see the file COPYING. If not, write to the Free | |
| 16 | * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA | |
| 17 | * 02111-1307, USA. | |
| 18 | */ | |
| 19 | ||
| 20 | #ifndef _PBR_H | |
| 21 | #define _PBR_H | |
| 22 | ||
| 23 | /* | |
| 24 | * A PBR filter | |
| 25 | * | |
| 26 | * The filter or match criteria in a PBR rule. | |
| 27 | * For simplicity, all supported filters are grouped into a structure rather | |
| 28 | * than delineating further. A bitmask denotes which filters are actually | |
| 29 | * specified. | |
| 30 | */ | |
| 31 | struct pbr_filter { | |
| 32 | uint32_t filter_bm; /* not encoded by zapi | |
| 33 | */ | |
| 34 | #define PBR_FILTER_SRC_IP (1 << 0) | |
| 35 | #define PBR_FILTER_DST_IP (1 << 1) | |
| 36 | #define PBR_FILTER_SRC_PORT (1 << 2) | |
| 37 | #define PBR_FILTER_DST_PORT (1 << 3) | |
| 38 | #define PBR_FILTER_FWMARK (1 << 4) | |
| 39 | ||
| 40 | /* Source and Destination IP address with masks. */ | |
| 41 | struct prefix src_ip; | |
| 42 | struct prefix dst_ip; | |
| 43 | ||
| 44 | /* Source and Destination higher-layer (TCP/UDP) port numbers. */ | |
| 45 | uint16_t src_port; | |
| 46 | uint16_t dst_port; | |
| 47 | ||
| 48 | /* Filter with fwmark */ | |
| 49 | uint32_t fwmark; | |
| 50 | }; | |
| 51 | ||
| 52 | /* | |
| 53 | * A PBR action | |
| 54 | * | |
| 55 | * The action corresponding to a PBR rule. | |
| 56 | * While the user specifies the action in a particular way, the forwarding | |
| 57 | * plane implementation (Linux only) requires that to be encoded into a | |
| 58 | * route table and the rule then point to that route table; in some cases, | |
| 59 | * the user criteria may directly point to a table too. | |
| 60 | */ | |
| 61 | struct pbr_action { | |
| 62 | uint32_t table; | |
| 63 | }; | |
| 64 | ||
| 65 | /* | |
| 66 | * A PBR rule | |
| 67 | * | |
| 68 | * This is a combination of the filter criteria and corresponding action. | |
| 69 | * Rules also have a user-defined sequence number which defines the relative | |
| 70 | * order amongst rules. | |
| 71 | */ | |
| 72 | struct pbr_rule { | |
| 73 | vrf_id_t vrf_id; | |
| 74 | ||
| 75 | uint32_t seq; | |
| 76 | uint32_t priority; | |
| 77 | uint32_t unique; | |
| 78 | struct pbr_filter filter; | |
| 79 | struct pbr_action action; | |
| 80 | uint32_t ifindex; | |
| 81 | }; | |
| 82 | ||
| 83 | extern int zapi_pbr_rule_encode(uint8_t cmd, struct stream *s, | |
| 84 | struct pbr_rule *zrule); | |
| 85 | ||
| 86 | #endif /* _PBR_H */ |