projects / mirror_frr.git / blame
| Commit | Line | Data |
|---|---|---|
| fea12efb | 1 | /* |
| 2 | * Label Manager header | |
| 3 | * | |
| 4 | * Copyright (C) 2017 by Bingen Eguzkitza, | |
| 5 | * Volta Networks Inc. | |
| 6 | * | |
| 7 | * This file is part of FreeRangeRouting (FRR) | |
| 8 | * | |
| 9 | * FRR is free software; you can redistribute it and/or modify it | |
| 10 | * under the terms of the GNU General Public License as published by the | |
| 11 | * Free Software Foundation; either version 2, or (at your option) any | |
| 12 | * later version. | |
| 13 | * | |
| 14 | * FRR is distributed in the hope that it will be useful, but | |
| 15 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 17 | * General Public License for more details. | |
| 18 | * | |
| 896014f4 DL |
19 | * You should have received a copy of the GNU General Public License along |
| 20 | * with this program; see the file COPYING; if not, write to the Free Software | |
| 21 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
| fea12efb | 22 | */ |
| 23 | ||
| 24 | #ifndef _LABEL_MANAGER_H | |
| 25 | #define _LABEL_MANAGER_H | |
| 26 | ||
| 27 | #include <stdint.h> | |
| 28 | ||
| 29 | #include "lib/linklist.h" | |
| 30 | #include "lib/thread.h" | |
| 31 | ||
| 32 | #define NO_PROTO 0 | |
| 33 | ||
| 34 | /* | |
| 35 | * Label chunk struct | |
| 36 | * Client daemon which the chunk belongs to can be identified by either | |
| 37 | * proto (daemon protocol) + instance. | |
| 38 | * If the client then passes a non-empty value to keep field when it requests | |
| 39 | * for chunks, the chunks won't be garbage collected and the client will be | |
| 40 | * responsible of its release. | |
| 41 | * Otherwise, if the keep field is not set (value 0) for the chunk, it will be | |
| 42 | * automatically released when the client disconnects or when it reconnects | |
| 43 | * (in case it died unexpectedly, we can know it's the same because it will have | |
| 44 | * the same proto and instance values) | |
| 45 | */ | |
| 46 | struct label_manager_chunk { | |
| 47 | u_char proto; | |
| 48 | u_short instance; | |
| 49 | u_char keep; | |
| 50 | uint32_t start; /* First label of the chunk */ | |
| 51 | uint32_t end; /* Last label of the chunk */ | |
| 52 | }; | |
| 53 | ||
| 54 | /* | |
| 55 | * Main label manager struct | |
| 56 | * Holds a linked list of label chunks. | |
| 57 | */ | |
| 58 | struct label_manager { | |
| 59 | struct list *lc_list; | |
| 60 | }; | |
| 61 | ||
| 62 | bool lm_is_external; | |
| 63 | ||
| 5c7ef8dc | 64 | int zread_relay_label_manager_request(int cmd, struct zserv *zserv, vrf_id_t vrf_id); |
| fea12efb | 65 | void label_manager_init(char *lm_zserv_path); |
| 66 | struct label_manager_chunk *assign_label_chunk(u_char proto, u_short instance, | |
| 67 | u_char keep, uint32_t size); | |
| 68 | int release_label_chunk(u_char proto, u_short instance, uint32_t start, | |
| 69 | uint32_t end); | |
| 70 | int release_daemon_chunks(u_char proto, u_short instance); | |
| 71 | void label_manager_close(void); | |
| 72 | ||
| 73 | #endif /* _LABEL_MANAGER_H */ |