projects / mirror_frr.git / blame
| Commit | Line | Data |
|---|---|---|
| eb5d44eb | 1 | /* |
| 2 | * IS-IS Rout(e)ing protocol - isis_flags.h | |
| 3 | * Routines for manipulation of SSN and SRM flags | |
| 4 | * | |
| 5 | * Copyright (C) 2001,2002 Sampo Saaristo | |
| d62a17ae | 6 | * Tampere University of Technology |
| eb5d44eb | 7 | * Institute of Communications Engineering |
| 8 | * | |
| d62a17ae | 9 | * This program is free software; you can redistribute it and/or modify it |
| 10 | * under the terms of the GNU General Public Licenseas published by the Free | |
| 11 | * Software Foundation; either version 2 of the License, or (at your option) | |
| eb5d44eb | 12 | * any later version. |
| 13 | * | |
| d62a17ae | 14 | * This program is distributed in the hope that it will be useful,but WITHOUT |
| 15 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 16 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
| eb5d44eb | 17 | * more details. |
| 896014f4 DL |
18 | * |
| 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 | |
| eb5d44eb | 22 | */ |
| 23 | ||
| 24 | #ifndef _ZEBRA_ISIS_FLAGS_H | |
| 25 | #define _ZEBRA_ISIS_FLAGS_H | |
| 26 | ||
| 27 | /* The grand plan is to support 1024 circuits so we have 32*32 bit flags | |
| 28 | * the support will be achived using the newest drafts */ | |
| 3f045a08 | 29 | #define ISIS_MAX_CIRCUITS 32 /* = 1024 */ |
| eb5d44eb | 30 | |
| 3f045a08 JB |
31 | /* |
| 32 | * Flags structure for SSN and SRM flags | |
| 33 | */ | |
| d62a17ae | 34 | struct flags { |
| 35 | int maxindex; | |
| 36 | struct list *free_idcs; | |
| 3f045a08 | 37 | }; |
| eb5d44eb | 38 | |
| d62a17ae | 39 | void flags_initialize(struct flags *flags); |
| 40 | long int flags_get_index(struct flags *flags); | |
| 41 | void flags_free_index(struct flags *flags, long int index); | |
| 42 | int flags_any_set(u_int32_t *flags); | |
| eb5d44eb | 43 | |
| d62a17ae | 44 | #define ISIS_SET_FLAG(F, C) \ |
| 45 | { \ | |
| 46 | F[C->idx >> 5] |= (1 << (C->idx & 0x1F)); \ | |
| 47 | } | |
| eb5d44eb | 48 | |
| d62a17ae | 49 | #define ISIS_CLEAR_FLAG(F, C) \ |
| 50 | { \ | |
| 51 | F[C->idx >> 5] &= ~(1 << (C->idx & 0x1F)); \ | |
| 52 | } | |
| eb5d44eb | 53 | |
| 3f045a08 | 54 | #define ISIS_CHECK_FLAG(F, C) (F[(C)->idx>>5] & (1<<(C->idx & 0x1F))) |
| eb5d44eb | 55 | |
| 56 | /* sets all u_32int_t flags to 1 */ | |
| d62a17ae | 57 | #define ISIS_FLAGS_SET_ALL(FLAGS) \ |
| 58 | { \ | |
| 59 | memset(FLAGS, 0xFF, ISIS_MAX_CIRCUITS * 4); \ | |
| 60 | } | |
| eb5d44eb | 61 | |
| d62a17ae | 62 | #define ISIS_FLAGS_CLEAR_ALL(FLAGS) \ |
| 63 | { \ | |
| 64 | memset(FLAGS, 0x00, ISIS_MAX_CIRCUITS * 4); \ | |
| 65 | } | |
| eb5d44eb | 66 | |
| 67 | #endif /* _ZEBRA_ISIS_FLAGS_H */ |