Blame view
net/batman-adv/main.h
12.3 KB
7db7d9f36 batman-adv: Add S... |
1 |
/* SPDX-License-Identifier: GPL-2.0 */ |
68e039f96 batman-adv: Updat... |
2 |
/* Copyright (C) 2007-2020 B.A.T.M.A.N. contributors: |
c6c8fea29 net: Add batman-a... |
3 4 |
* * Marek Lindner, Simon Wunderlich |
c6c8fea29 net: Add batman-a... |
5 6 7 8 |
*/ #ifndef _NET_BATMAN_ADV_MAIN_H_ #define _NET_BATMAN_ADV_MAIN_H_ |
bc58eeef7 batman-adv: updat... |
9 |
#define BATADV_DRIVER_AUTHOR "Marek Lindner <mareklindner@neomailbox.ch>, " \ |
c679ff8fb batman-adv: updat... |
10 |
"Simon Wunderlich <sw@simonwunderlich.de>" |
42d0b044b batman-adv: Prefi... |
11 12 |
#define BATADV_DRIVER_DESC "B.A.T.M.A.N. advanced" #define BATADV_DRIVER_DEVICE "batman-adv" |
c6c8fea29 net: Add batman-a... |
13 |
|
42d0b044b batman-adv: Prefi... |
14 |
#ifndef BATADV_SOURCE_VERSION |
426988ee8 batman-adv: Start... |
15 |
#define BATADV_SOURCE_VERSION "2020.4" |
44c4349a2 batman-adv: Repla... |
16 |
#endif |
c6c8fea29 net: Add batman-a... |
17 18 |
/* B.A.T.M.A.N. parameters */ |
42d0b044b batman-adv: Prefi... |
19 |
#define BATADV_TQ_MAX_VALUE 255 |
0da003594 batman-adv: OGMv2... |
20 |
#define BATADV_THROUGHPUT_MAX_VALUE 0xFFFFFFFF |
42d0b044b batman-adv: Prefi... |
21 |
#define BATADV_JITTER 20 |
c6c8fea29 net: Add batman-a... |
22 |
|
9cfc7bd60 batman-adv: Refor... |
23 |
/* Time To Live of broadcast messages */ |
42d0b044b batman-adv: Prefi... |
24 |
#define BATADV_TTL 50 |
6e215fd8e batman-adv: Remov... |
25 |
|
81f026835 batman-adv: add s... |
26 27 |
/* maximum sequence number age of broadcast messages */ #define BATADV_BCAST_MAX_AGE 64 |
6e215fd8e batman-adv: Remov... |
28 |
/* purge originators after time in seconds if no valid packet comes in |
42d0b044b batman-adv: Prefi... |
29 |
* -> TODO: check influence on BATADV_TQ_LOCAL_WINDOW_SIZE |
9cfc7bd60 batman-adv: Refor... |
30 |
*/ |
42d0b044b batman-adv: Prefi... |
31 |
#define BATADV_PURGE_TIMEOUT 200000 /* 200 seconds */ |
7cf4d520f batman-adv: reduc... |
32 |
#define BATADV_TT_LOCAL_TIMEOUT 600000 /* in milliseconds */ |
a51fb9b2a batman-adv: fix t... |
33 |
#define BATADV_TT_CLIENT_ROAM_TIMEOUT 600000 /* in milliseconds */ |
30cfd02b6 batman-adv: detec... |
34 |
#define BATADV_TT_CLIENT_TEMP_TIMEOUT 600000 /* in milliseconds */ |
724144420 batman-adv: a del... |
35 36 |
#define BATADV_TT_WORK_PERIOD 5000 /* 5 seconds */ #define BATADV_ORIG_WORK_PERIOD 1000 /* 1 second */ |
cbebd363b batman-adv: Use o... |
37 |
#define BATADV_MCAST_WORK_PERIOD 500 /* 0.5 seconds */ |
fc1f86936 batman-adv: check... |
38 |
#define BATADV_DAT_ENTRY_TIMEOUT (5 * 60000) /* 5 mins in milliseconds */ |
015758d00 batman-adv: corre... |
39 |
/* sliding packet range of received originator messages in sequence numbers |
9cfc7bd60 batman-adv: Refor... |
40 41 |
* (should be a multiple of our word size) */ |
42d0b044b batman-adv: Prefi... |
42 |
#define BATADV_TQ_LOCAL_WINDOW_SIZE 64 |
a51fb9b2a batman-adv: fix t... |
43 |
/* milliseconds we have to keep pending tt_req */ |
42d0b044b batman-adv: Prefi... |
44 |
#define BATADV_TT_REQUEST_TIMEOUT 3000 |
a73105b8d batman-adv: impro... |
45 |
|
42d0b044b batman-adv: Prefi... |
46 47 48 49 |
#define BATADV_TQ_GLOBAL_WINDOW_SIZE 5 #define BATADV_TQ_LOCAL_BIDRECT_SEND_MINIMUM 1 #define BATADV_TQ_LOCAL_BIDRECT_RECV_MINIMUM 1 #define BATADV_TQ_TOTAL_BIDRECT_LIMIT 1 |
c6c8fea29 net: Add batman-a... |
50 |
|
162bd64c2 batman-adv: ELP -... |
51 |
/* B.A.T.M.A.N. V */ |
c833484e5 batman-adv: ELP -... |
52 |
#define BATADV_THROUGHPUT_DEFAULT_VALUE 10 /* 1 Mbps */ |
8d2d499e0 batman-adv: ELP -... |
53 54 55 |
#define BATADV_ELP_PROBES_PER_NODE 2 #define BATADV_ELP_MIN_PROBE_SIZE 200 /* bytes */ #define BATADV_ELP_PROBE_MAX_TX_DIFF 100 /* milliseconds */ |
162bd64c2 batman-adv: ELP -... |
56 |
#define BATADV_ELP_MAX_AGE 64 |
9323158ef batman-adv: OGMv2... |
57 58 |
#define BATADV_OGM_MAX_ORIGDIFF 5 #define BATADV_OGM_MAX_AGE 64 |
162bd64c2 batman-adv: ELP -... |
59 |
|
42d0b044b batman-adv: Prefi... |
60 61 |
/* number of OGMs sent with the last tt diff */ #define BATADV_TT_OGM_APPEND_MAX 3 |
a73105b8d batman-adv: impro... |
62 |
|
9cfc7bd60 batman-adv: Refor... |
63 |
/* Time in which a client can roam at most ROAMING_MAX_COUNT times in |
a51fb9b2a batman-adv: fix t... |
64 |
* milliseconds |
9cfc7bd60 batman-adv: Refor... |
65 |
*/ |
42d0b044b batman-adv: Prefi... |
66 67 |
#define BATADV_ROAMING_MAX_TIME 20000 #define BATADV_ROAMING_MAX_COUNT 5 |
cc47f66e6 batman-adv: impro... |
68 |
|
42d0b044b batman-adv: Prefi... |
69 |
#define BATADV_NO_FLAGS 0 |
ecbd53210 batman-adv: use N... |
70 |
|
42d0b044b batman-adv: Prefi... |
71 |
#define BATADV_NULL_IFINDEX 0 /* dummy ifindex used to avoid iface checks */ |
bc2790808 batman-adv: detec... |
72 |
|
9464d0718 batman-adv: mark ... |
73 |
#define BATADV_NO_MARK 0 |
89652331c batman-adv: split... |
74 75 76 77 78 |
/* default interface for multi interface operation. The default interface is * used for communication which originated locally (i.e. is not forwarded) * or where special forwarding is not desired/necessary. */ #define BATADV_IF_DEFAULT ((struct batadv_hard_iface *)NULL) |
42d0b044b batman-adv: Prefi... |
79 |
#define BATADV_NUM_WORDS BITS_TO_LONGS(BATADV_TQ_LOCAL_WINDOW_SIZE) |
c6c8fea29 net: Add batman-a... |
80 |
|
42d0b044b batman-adv: Prefi... |
81 |
#define BATADV_LOG_BUF_LEN 8192 /* has to be a power of 2 */ |
c6c8fea29 net: Add batman-a... |
82 |
|
caf65bfcc batman-adv: send ... |
83 84 85 86 |
/* number of packets to send for broadcasts on different interface types */ #define BATADV_NUM_BCASTS_DEFAULT 1 #define BATADV_NUM_BCASTS_WIRELESS 3 #define BATADV_NUM_BCASTS_MAX 3 |
33a3bb4a3 batman-adv: throu... |
87 88 |
/* length of the single packet used by the TP meter */ #define BATADV_TP_PACKET_LEN ETH_DATA_LEN |
c384ea3ec batman-adv: Distr... |
89 90 |
/* msecs after which an ARP_REQUEST is sent in broadcast as fallback */ #define ARP_REQ_DELAY 250 |
785ea1144 batman-adv: Distr... |
91 92 |
/* numbers of originator to contact for any PUT/GET DHT operation */ #define BATADV_DAT_CANDIDATES_NUM 3 |
a0e287750 batman-adv: kerne... |
93 94 |
/* BATADV_TQ_SIMILARITY_THRESHOLD - TQ points that a secondary metric can differ * at most from the primary one in order to be still considered acceptable |
c43c981e5 batman-adv: add b... |
95 96 |
*/ #define BATADV_TQ_SIMILARITY_THRESHOLD 50 |
6e215fd8e batman-adv: Remov... |
97 |
/* should not be bigger than 512 bytes or change the size of |
9cfc7bd60 batman-adv: Refor... |
98 99 |
* forw_packet->direct_link_flags */ |
42d0b044b batman-adv: Prefi... |
100 101 |
#define BATADV_MAX_AGGREGATION_BYTES 512 #define BATADV_MAX_AGGREGATION_MS 100 |
c6c8fea29 net: Add batman-a... |
102 |
|
42d0b044b batman-adv: Prefi... |
103 |
#define BATADV_BLA_PERIOD_LENGTH 10000 /* 10 seconds */ |
e1544f3c8 batman-adv: incre... |
104 |
#define BATADV_BLA_BACKBONE_TIMEOUT (BATADV_BLA_PERIOD_LENGTH * 6) |
42d0b044b batman-adv: Prefi... |
105 |
#define BATADV_BLA_CLAIM_TIMEOUT (BATADV_BLA_PERIOD_LENGTH * 10) |
28709878b batman-adv: wait ... |
106 |
#define BATADV_BLA_WAIT_PERIODS 3 |
cd9c7bfbb batman-adv: add d... |
107 108 |
#define BATADV_BLA_LOOPDETECT_PERIODS 6 #define BATADV_BLA_LOOPDETECT_TIMEOUT 3000 /* 3 seconds */ |
fe2da6ff2 batman-adv: add b... |
109 |
|
42d0b044b batman-adv: Prefi... |
110 111 |
#define BATADV_DUPLIST_SIZE 16 #define BATADV_DUPLIST_TIMEOUT 500 /* 500 ms */ |
6e215fd8e batman-adv: Remov... |
112 |
/* don't reset again within 30 seconds */ |
42d0b044b batman-adv: Prefi... |
113 114 |
#define BATADV_RESET_PROTECTION_MS 30000 #define BATADV_EXPECTED_SEQNO_RANGE 65536 |
c6c8fea29 net: Add batman-a... |
115 |
|
d56b1705e batman-adv: netwo... |
116 |
#define BATADV_NC_NODE_TIMEOUT 10000 /* Milliseconds */ |
33a3bb4a3 batman-adv: throu... |
117 118 119 120 |
/** * BATADV_TP_MAX_NUM - maximum number of simultaneously active tp sessions */ #define BATADV_TP_MAX_NUM 5 |
73844a8c7 batman-adv: Add k... |
121 122 123 |
/** * enum batadv_mesh_state - State of a soft interface */ |
39c75a51e batman-adv: Prefi... |
124 |
enum batadv_mesh_state { |
73844a8c7 batman-adv: Add k... |
125 |
/** @BATADV_MESH_INACTIVE: soft interface is not yet running */ |
39c75a51e batman-adv: Prefi... |
126 |
BATADV_MESH_INACTIVE, |
73844a8c7 batman-adv: Add k... |
127 128 |
/** @BATADV_MESH_ACTIVE: interface is up and running */ |
39c75a51e batman-adv: Prefi... |
129 |
BATADV_MESH_ACTIVE, |
73844a8c7 batman-adv: Add k... |
130 131 |
/** @BATADV_MESH_DEACTIVATING: interface is getting shut down */ |
39c75a51e batman-adv: Prefi... |
132 |
BATADV_MESH_DEACTIVATING, |
e8958dbf0 batman-adv: Use e... |
133 |
}; |
c6c8fea29 net: Add batman-a... |
134 |
|
42d0b044b batman-adv: Prefi... |
135 136 |
#define BATADV_BCAST_QUEUE_LEN 256 #define BATADV_BATMAN_QUEUE_LEN 256 |
c6c8fea29 net: Add batman-a... |
137 |
|
73844a8c7 batman-adv: Add k... |
138 139 140 |
/** * enum batadv_uev_action - action type of uevent */ |
39c75a51e batman-adv: Prefi... |
141 |
enum batadv_uev_action { |
73844a8c7 batman-adv: Add k... |
142 |
/** @BATADV_UEV_ADD: gateway was selected (after none was selected) */ |
39c75a51e batman-adv: Prefi... |
143 |
BATADV_UEV_ADD = 0, |
73844a8c7 batman-adv: Add k... |
144 145 146 147 148 |
/** * @BATADV_UEV_DEL: selected gateway was removed and none is selected * anymore */ |
39c75a51e batman-adv: Prefi... |
149 |
BATADV_UEV_DEL, |
73844a8c7 batman-adv: Add k... |
150 151 152 153 |
/** * @BATADV_UEV_CHANGE: a different gateway was selected as based gateway */ |
39c75a51e batman-adv: Prefi... |
154 |
BATADV_UEV_CHANGE, |
73844a8c7 batman-adv: Add k... |
155 156 157 158 159 |
/** * @BATADV_UEV_LOOPDETECT: loop was detected which cannot be handled by * bridge loop avoidance */ |
cd9c7bfbb batman-adv: add d... |
160 |
BATADV_UEV_LOOPDETECT, |
c6bda689c batman-adv: add w... |
161 |
}; |
73844a8c7 batman-adv: Add k... |
162 163 164 |
/** * enum batadv_uev_type - Type of uevent */ |
39c75a51e batman-adv: Prefi... |
165 |
enum batadv_uev_type { |
73844a8c7 batman-adv: Add k... |
166 |
/** @BATADV_UEV_GW: selected gateway was modified */ |
39c75a51e batman-adv: Prefi... |
167 |
BATADV_UEV_GW = 0, |
73844a8c7 batman-adv: Add k... |
168 169 |
/** @BATADV_UEV_BLA: bridge loop avoidance event */ |
cd9c7bfbb batman-adv: add d... |
170 |
BATADV_UEV_BLA, |
c6bda689c batman-adv: add w... |
171 |
}; |
42d0b044b batman-adv: Prefi... |
172 |
#define BATADV_GW_THRESHOLD 50 |
43676ab59 batman-adv: impro... |
173 |
|
610bfc6bc batman-adv: Recei... |
174 175 176 177 178 |
/* Number of fragment chains for each orig_node */ #define BATADV_FRAG_BUFFER_COUNT 8 /* Maximum number of fragments for one packet */ #define BATADV_FRAG_MAX_FRAGMENTS 16 /* Maxumim size of each fragment */ |
8ea026b16 batman-adv: decre... |
179 |
#define BATADV_FRAG_MAX_FRAG_SIZE 1280 |
610bfc6bc batman-adv: Recei... |
180 181 |
/* Time to keep fragments while waiting for rest of the fragments */ #define BATADV_FRAG_TIMEOUT 10000 |
785ea1144 batman-adv: Distr... |
182 183 |
#define BATADV_DAT_CANDIDATE_NOT_FOUND 0 #define BATADV_DAT_CANDIDATE_ORIG 1 |
21a1236bc batman-adv: Don't... |
184 |
/* Debug Messages */ |
c6c8fea29 net: Add batman-a... |
185 186 187 |
#ifdef pr_fmt #undef pr_fmt #endif |
6e215fd8e batman-adv: Remov... |
188 189 |
/* Append 'batman-adv: ' before kernel messages */ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
c6c8fea29 net: Add batman-a... |
190 |
|
21a1236bc batman-adv: Don't... |
191 |
/* Kernel headers */ |
c6c8fea29 net: Add batman-a... |
192 |
|
47d4522dd batman-adv: Add m... |
193 |
#include <linux/atomic.h> |
1e2c2a4fe batman-adv: Add r... |
194 |
#include <linux/compiler.h> |
1e2c2a4fe batman-adv: Add r... |
195 |
#include <linux/etherdevice.h> |
fcafa5e74 batman-adv: Keep ... |
196 197 |
#include <linux/if_vlan.h> #include <linux/jiffies.h> |
68a600de9 batman-adv: Use i... |
198 |
#include <linux/netdevice.h> |
fcafa5e74 batman-adv: Keep ... |
199 |
#include <linux/percpu.h> |
68a600de9 batman-adv: Use i... |
200 201 |
#include <linux/seq_file.h> #include <linux/skbuff.h> |
1e2c2a4fe batman-adv: Add r... |
202 |
#include <linux/types.h> |
fec149f5d batman-adv: Conve... |
203 |
#include <uapi/linux/batadv_packet.h> |
160527890 batman-adv: print... |
204 |
|
c6c8fea29 net: Add batman-a... |
205 |
#include "types.h" |
68a600de9 batman-adv: Use i... |
206 |
#include "main.h" |
1e2c2a4fe batman-adv: Add r... |
207 |
|
f7a2bd654 batman-adv: Conve... |
208 |
/** |
7e9a8c2ce batman-adv: Use p... |
209 |
* batadv_print_vid() - return printable version of vid information |
f7a2bd654 batman-adv: Conve... |
210 211 212 213 214 215 216 217 218 219 220 |
* @vid: the VLAN identifier * * Return: -1 when no VLAN is used, VLAN id otherwise */ static inline int batadv_print_vid(unsigned short vid) { if (vid & BATADV_VLAN_HAS_TAG) return (int)(vid & VLAN_VID_MASK); else return -1; } |
eb2deb6b3 batman-adv: chang... |
221 |
|
3193e8fdf batman-adv: Prefi... |
222 |
extern struct list_head batadv_hardif_list; |
fb69be697 batman-adv: Add i... |
223 |
extern unsigned int batadv_hardif_generation; |
3193e8fdf batman-adv: Prefi... |
224 225 226 227 228 229 |
extern unsigned char batadv_broadcast_addr[]; extern struct workqueue_struct *batadv_event_workqueue; int batadv_mesh_init(struct net_device *soft_iface); void batadv_mesh_free(struct net_device *soft_iface); |
6b5e971a2 batman-adv: Repla... |
230 |
bool batadv_is_my_mac(struct batadv_priv *bat_priv, const u8 *addr); |
30da63a6a batman-adv: conso... |
231 232 |
struct batadv_hard_iface * batadv_seq_print_text_primary_if_get(struct seq_file *seq); |
411d6ed93 batman-adv: consi... |
233 |
int batadv_max_header_len(void); |
c54f38c9a batman-adv: set s... |
234 |
void batadv_skb_set_priority(struct sk_buff *skb, int offset); |
3193e8fdf batman-adv: Prefi... |
235 236 237 |
int batadv_batman_skb_recv(struct sk_buff *skb, struct net_device *dev, struct packet_type *ptype, struct net_device *orig_dev); |
56303d34a batman-adv: Prefi... |
238 |
int |
6b5e971a2 batman-adv: Repla... |
239 |
batadv_recv_handler_register(u8 packet_type, |
56303d34a batman-adv: Prefi... |
240 241 |
int (*recv_handler)(struct sk_buff *, struct batadv_hard_iface *)); |
6b5e971a2 batman-adv: Repla... |
242 |
void batadv_recv_handler_unregister(u8 packet_type); |
95a066d82 batman-adv: Add f... |
243 |
__be32 batadv_skb_crc32(struct sk_buff *skb, u8 *payload_ptr); |
c6c8fea29 net: Add batman-a... |
244 |
|
0aca86cd9 batman-adv: add k... |
245 |
/** |
7e9a8c2ce batman-adv: Use p... |
246 |
* batadv_compare_eth() - Compare two not u16 aligned Ethernet addresses |
7afcbbef6 batman-adv: Fix k... |
247 248 |
* @data1: Pointer to a six-byte array containing the Ethernet address * @data2: Pointer other six-byte array containing the Ethernet address |
39901e716 batman-adv: separ... |
249 |
* |
c3923b7a3 batman: Remove re... |
250 |
* note: can't use ether_addr_equal() as it requires aligned memory |
62fe710f6 batman-adv: Fix k... |
251 |
* |
4b426b108 batman-adv: Use b... |
252 |
* Return: true if they are the same ethernet addr |
39901e716 batman-adv: separ... |
253 |
*/ |
f2d5cf2ad batman-adv: main,... |
254 |
static inline bool batadv_compare_eth(const void *data1, const void *data2) |
39901e716 batman-adv: separ... |
255 |
{ |
d9cd4fe5e batadv: Slight op... |
256 |
return ether_addr_equal_unaligned(data1, data2); |
39901e716 batman-adv: separ... |
257 |
} |
2c53040f0 net: Fix (nearly-... |
258 |
/** |
7e9a8c2ce batman-adv: Use p... |
259 |
* batadv_has_timed_out() - compares current time (jiffies) and timestamp + |
6d030de89 batman-adv: fix w... |
260 |
* timeout |
a04ccd597 batman-adv: Move ... |
261 262 263 |
* @timestamp: base value to compare with (in jiffies) * @timeout: added to base value before comparing (in milliseconds) * |
62fe710f6 batman-adv: Fix k... |
264 |
* Return: true if current time is after timestamp + timeout |
a04ccd597 batman-adv: Move ... |
265 |
*/ |
1eda58bfc batman-adv: Prefi... |
266 267 |
static inline bool batadv_has_timed_out(unsigned long timestamp, unsigned int timeout) |
a04ccd597 batman-adv: Move ... |
268 269 270 |
{ return time_is_before_jiffies(timestamp + msecs_to_jiffies(timeout)); } |
747e4221a batman-adv: Add c... |
271 |
|
e57acf8e9 batman-adv: Add k... |
272 273 274 275 276 277 |
/** * batadv_atomic_dec_not_zero() - Decrease unless the number is 0 * @v: pointer of type atomic_t * * Return: non-zero if v was not 0, and zero otherwise. */ |
3e34819e0 batman-adv: Prefi... |
278 |
#define batadv_atomic_dec_not_zero(v) atomic_add_unless((v), -1, 0) |
5f657ec0d batman-adv: Move ... |
279 |
|
e57acf8e9 batman-adv: Add k... |
280 281 282 283 284 285 286 |
/** * batadv_smallest_signed_int() - Returns the smallest signed integer in two's * complement with the sizeof x * @x: type of integer * * Return: smallest signed integer of type */ |
3e34819e0 batman-adv: Prefi... |
287 |
#define batadv_smallest_signed_int(x) (1u << (7u + 8u * (sizeof(x) - 1u))) |
f5d33d377 batman-adv: move ... |
288 |
|
e57acf8e9 batman-adv: Add k... |
289 290 291 292 293 294 |
/** * batadv_seq_before() - Checks if a sequence number x is a predecessor of y * @x: potential predecessor of @y * @y: value to compare @x against * * It handles overflows/underflows and can correctly check for a predecessor |
bccb48c89 batman-adv: Fix t... |
295 |
* unless the variable sequence number has grown by more than |
e57acf8e9 batman-adv: Add k... |
296 297 |
* 2**(bitwidth(x)-1)-1. * |
6b5e971a2 batman-adv: Repla... |
298 |
* This means that for a u8 with the maximum value 255, it would think: |
e57acf8e9 batman-adv: Add k... |
299 300 301 302 303 304 305 |
* * * when adding nothing - it is neither a predecessor nor a successor * * before adding more than 127 to the starting value - it is a predecessor, * * when adding 128 - it is neither a predecessor nor a successor, * * after adding more than 127 to the starting value - it is a successor * * Return: true when x is a predecessor of y, false otherwise |
9cfc7bd60 batman-adv: Refor... |
306 |
*/ |
84d0a3948 batman-adv: Fix i... |
307 308 309 310 311 312 313 |
#define batadv_seq_before(x, y) ({ \ typeof(x)_d1 = (x); \ typeof(y)_d2 = (y); \ typeof(x)_dummy = (_d1 - _d2); \ (void)(&_d1 == &_d2); \ _dummy > batadv_smallest_signed_int(_dummy); \ }) |
e57acf8e9 batman-adv: Add k... |
314 315 316 |
/** * batadv_seq_after() - Checks if a sequence number x is a successor of y |
bccb48c89 batman-adv: Fix t... |
317 |
* @x: potential successor of @y |
e57acf8e9 batman-adv: Add k... |
318 319 320 |
* @y: value to compare @x against * * It handles overflows/underflows and can correctly check for a successor |
bccb48c89 batman-adv: Fix t... |
321 |
* unless the variable sequence number has grown by more than |
e57acf8e9 batman-adv: Add k... |
322 323 324 325 326 327 328 329 330 331 332 |
* 2**(bitwidth(x)-1)-1. * * This means that for a u8 with the maximum value 255, it would think: * * * when adding nothing - it is neither a predecessor nor a successor * * before adding more than 127 to the starting value - it is a predecessor, * * when adding 128 - it is neither a predecessor nor a successor, * * after adding more than 127 to the starting value - it is a successor * * Return: true when x is a successor of y, false otherwise */ |
3e34819e0 batman-adv: Prefi... |
333 |
#define batadv_seq_after(x, y) batadv_seq_before(y, x) |
f5d33d377 batman-adv: move ... |
334 |
|
e57acf8e9 batman-adv: Add k... |
335 336 337 338 339 340 341 342 |
/** * batadv_add_counter() - Add to per cpu statistics counter of soft interface * @bat_priv: the bat priv with all the soft interface information * @idx: counter index which should be modified * @count: value to increase counter by * * Stop preemption on local cpu while incrementing the counter */ |
56303d34a batman-adv: Prefi... |
343 |
static inline void batadv_add_counter(struct batadv_priv *bat_priv, size_t idx, |
f8214865a batman-adv: Add g... |
344 345 |
size_t count) { |
569174433 batman-adv: use p... |
346 |
this_cpu_add(bat_priv->bat_counters[idx], count); |
f8214865a batman-adv: Add g... |
347 |
} |
e57acf8e9 batman-adv: Add k... |
348 349 350 351 352 |
/** * batadv_inc_counter() - Increase per cpu statistics counter of soft interface * @b: the bat priv with all the soft interface information * @i: counter index which should be modified */ |
f8214865a batman-adv: Add g... |
353 |
#define batadv_inc_counter(b, i) batadv_add_counter(b, i, 1) |
e57acf8e9 batman-adv: Add k... |
354 355 356 357 358 359 360 361 |
/** * BATADV_SKB_CB() - Get batadv_skb_cb from skb control buffer * @__skb: skb holding the control buffer * * The members of the control buffer are defined in struct batadv_skb_cb in * types.h. The macro is inspired by the similar macro TCP_SKB_CB() in tcp.h. * * Return: pointer to the batadv_skb_cb of the skb |
3c12de9a5 batman-adv: netwo... |
362 363 |
*/ #define BATADV_SKB_CB(__skb) ((struct batadv_skb_cb *)&((__skb)->cb[0])) |
c018ad3de batman-adv: add t... |
364 |
unsigned short batadv_get_vid(struct sk_buff *skb, size_t header_len); |
eceb22ae0 batman-adv: creat... |
365 |
bool batadv_vlan_ap_isola_get(struct batadv_priv *bat_priv, unsigned short vid); |
0fa4c30d7 batman-adv: Make ... |
366 367 |
int batadv_throw_uevent(struct batadv_priv *bat_priv, enum batadv_uev_type type, enum batadv_uev_action action, const char *data); |
ef2615774 batman-adv: tvlv ... |
368 |
|
c6c8fea29 net: Add batman-a... |
369 |
#endif /* _NET_BATMAN_ADV_MAIN_H_ */ |