projects / mirror_frr.git / blame
| Commit | Line | Data |
|---|---|---|
| acddc0ed | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
| eb5d44eb | 2 | /* |
| 3 | * IS-IS Rout(e)ing protocol - isis_flags.h | |
| 4 | * Routines for manipulation of SSN and SRM flags | |
| 5 | * | |
| 6 | * Copyright (C) 2001,2002 Sampo Saaristo | |
| d62a17ae | 7 | * Tampere University of Technology |
| eb5d44eb | 8 | * Institute of Communications Engineering |
| eb5d44eb | 9 | */ |
| 10 | ||
| 11 | #ifndef _ZEBRA_ISIS_FLAGS_H | |
| 12 | #define _ZEBRA_ISIS_FLAGS_H | |
| 13 | ||
| 14 | /* The grand plan is to support 1024 circuits so we have 32*32 bit flags | |
| 15 | * the support will be achived using the newest drafts */ | |
| 3f045a08 | 16 | #define ISIS_MAX_CIRCUITS 32 /* = 1024 */ |
| eb5d44eb | 17 | |
| 3f045a08 JB |
18 | /* |
| 19 | * Flags structure for SSN and SRM flags | |
| 20 | */ | |
| d62a17ae | 21 | struct flags { |
| 22 | int maxindex; | |
| 23 | struct list *free_idcs; | |
| 3f045a08 | 24 | }; |
| eb5d44eb | 25 | |
| d62a17ae | 26 | void flags_initialize(struct flags *flags); |
| 27 | long int flags_get_index(struct flags *flags); | |
| 28 | void flags_free_index(struct flags *flags, long int index); | |
| d7c0a89a | 29 | int flags_any_set(uint32_t *flags); |
| eb5d44eb | 30 | |
| 996c9314 LB |
31 | #define _ISIS_SET_FLAG(F, C) \ |
| 32 | { \ | |
| 33 | F[(C) >> 5] |= (1 << ((C)&0x1F)); \ | |
| d62a17ae | 34 | } |
| 068c8222 | 35 | #define ISIS_SET_FLAG(F, C) _ISIS_SET_FLAG(F, C->idx) |
| eb5d44eb | 36 | |
| 996c9314 LB |
37 | #define _ISIS_CLEAR_FLAG(F, C) \ |
| 38 | { \ | |
| 39 | F[(C) >> 5] &= ~(1 << ((C)&0x1F)); \ | |
| d62a17ae | 40 | } |
| 068c8222 CF |
41 | #define ISIS_CLEAR_FLAG(F, C) _ISIS_CLEAR_FLAG(F, C->idx) |
| 42 | ||
| 068c8222 CF |
43 | #define _ISIS_CHECK_FLAG(F, C) (F[(C)>>5] & (1<<((C) & 0x1F))) |
| 44 | #define ISIS_CHECK_FLAG(F, C) _ISIS_CHECK_FLAG(F, C->idx) | |
| eb5d44eb | 45 | |
| 46 | /* sets all u_32int_t flags to 1 */ | |
| d62a17ae | 47 | #define ISIS_FLAGS_SET_ALL(FLAGS) \ |
| 48 | { \ | |
| 49 | memset(FLAGS, 0xFF, ISIS_MAX_CIRCUITS * 4); \ | |
| 50 | } | |
| eb5d44eb | 51 | |
| d62a17ae | 52 | #define ISIS_FLAGS_CLEAR_ALL(FLAGS) \ |
| 53 | { \ | |
| 54 | memset(FLAGS, 0x00, ISIS_MAX_CIRCUITS * 4); \ | |
| 55 | } | |
| eb5d44eb | 56 | |
| 57 | #endif /* _ZEBRA_ISIS_FLAGS_H */ |