1 #ifndef LLC_IF_H 1 #ifndef LLC_IF_H
2 #define LLC_IF_H 2 #define LLC_IF_H
3 /* 3 /*
4 * Copyright (c) 1997 by Procom Technology,Inc 4 * Copyright (c) 1997 by Procom Technology,Inc.
5 * 2001 by Arnaldo Carvalho de M 5 * 2001 by Arnaldo Carvalho de Melo <acme@conectiva.com.br>
6 * 6 *
7 * This program can be redistributed or modifi 7 * This program can be redistributed or modified under the terms of the
8 * GNU General Public License as published by 8 * GNU General Public License as published by the Free Software Foundation.
9 * This program is distributed without any war 9 * This program is distributed without any warranty or implied warranty
10 * of merchantability or fitness for a particu 10 * of merchantability or fitness for a particular purpose.
11 * 11 *
12 * See the GNU General Public License for more 12 * See the GNU General Public License for more details.
13 */ 13 */
14 /* Defines LLC interface to network layer */ 14 /* Defines LLC interface to network layer */
15 /* Available primitives */ 15 /* Available primitives */
16 #include <linux/if.h> 16 #include <linux/if.h>
17 #include <linux/if_arp.h> 17 #include <linux/if_arp.h>
18 #include <linux/llc.h> 18 #include <linux/llc.h>
19 #include <linux/etherdevice.h> <<
20 #include <net/llc.h> 19 #include <net/llc.h>
21 20
22 #define LLC_DATAUNIT_PRIM 1 21 #define LLC_DATAUNIT_PRIM 1
23 #define LLC_CONN_PRIM 2 22 #define LLC_CONN_PRIM 2
24 #define LLC_DATA_PRIM 3 23 #define LLC_DATA_PRIM 3
25 #define LLC_DISC_PRIM 4 24 #define LLC_DISC_PRIM 4
26 #define LLC_RESET_PRIM 5 25 #define LLC_RESET_PRIM 5
27 #define LLC_FLOWCONTROL_PRIM 6 /* Not suppo 26 #define LLC_FLOWCONTROL_PRIM 6 /* Not supported at this time */
28 #define LLC_DISABLE_PRIM 7 27 #define LLC_DISABLE_PRIM 7
29 #define LLC_XID_PRIM 8 28 #define LLC_XID_PRIM 8
30 #define LLC_TEST_PRIM 9 29 #define LLC_TEST_PRIM 9
31 #define LLC_SAP_ACTIVATION 10 30 #define LLC_SAP_ACTIVATION 10
32 #define LLC_SAP_DEACTIVATION 11 31 #define LLC_SAP_DEACTIVATION 11
33 32
34 #define LLC_NBR_PRIMITIVES 11 33 #define LLC_NBR_PRIMITIVES 11
35 34
36 #define LLC_IND 1 35 #define LLC_IND 1
37 #define LLC_CONFIRM 2 36 #define LLC_CONFIRM 2
38 37
39 /* Primitive type */ 38 /* Primitive type */
40 #define LLC_PRIM_TYPE_REQ 1 39 #define LLC_PRIM_TYPE_REQ 1
41 #define LLC_PRIM_TYPE_IND 2 40 #define LLC_PRIM_TYPE_IND 2
42 #define LLC_PRIM_TYPE_RESP 3 41 #define LLC_PRIM_TYPE_RESP 3
43 #define LLC_PRIM_TYPE_CONFIRM 4 42 #define LLC_PRIM_TYPE_CONFIRM 4
44 43
45 /* Reset reasons, remote entity or local LLC * 44 /* Reset reasons, remote entity or local LLC */
46 #define LLC_RESET_REASON_REMOTE 1 45 #define LLC_RESET_REASON_REMOTE 1
47 #define LLC_RESET_REASON_LOCAL 2 46 #define LLC_RESET_REASON_LOCAL 2
48 47
49 /* Disconnect reasons */ 48 /* Disconnect reasons */
50 #define LLC_DISC_REASON_RX_DM_RSP_PDU 0 49 #define LLC_DISC_REASON_RX_DM_RSP_PDU 0
51 #define LLC_DISC_REASON_RX_DISC_CMD_PDU 1 50 #define LLC_DISC_REASON_RX_DISC_CMD_PDU 1
52 #define LLC_DISC_REASON_ACK_TMR_EXP 2 51 #define LLC_DISC_REASON_ACK_TMR_EXP 2
53 52
54 /* Confirm reasons */ 53 /* Confirm reasons */
55 #define LLC_STATUS_CONN 0 /* connect c 54 #define LLC_STATUS_CONN 0 /* connect confirm & reset confirm */
56 #define LLC_STATUS_DISC 1 /* connect c 55 #define LLC_STATUS_DISC 1 /* connect confirm & reset confirm */
57 #define LLC_STATUS_FAILED 2 /* connect c 56 #define LLC_STATUS_FAILED 2 /* connect confirm & reset confirm */
58 #define LLC_STATUS_IMPOSSIBLE 3 /* connect c 57 #define LLC_STATUS_IMPOSSIBLE 3 /* connect confirm */
59 #define LLC_STATUS_RECEIVED 4 /* data conn 58 #define LLC_STATUS_RECEIVED 4 /* data conn */
60 #define LLC_STATUS_REMOTE_BUSY 5 /* data conn 59 #define LLC_STATUS_REMOTE_BUSY 5 /* data conn */
61 #define LLC_STATUS_REFUSE 6 /* data conn 60 #define LLC_STATUS_REFUSE 6 /* data conn */
62 #define LLC_STATUS_CONFLICT 7 /* disconnec 61 #define LLC_STATUS_CONFLICT 7 /* disconnect conn */
63 #define LLC_STATUS_RESET_DONE 8 /* */ 62 #define LLC_STATUS_RESET_DONE 8 /* */
64 63
65 int llc_establish_connection(struct sock *sk, !! 64 extern u8 llc_mac_null_var[IFHWADDRLEN];
66 u8 dsap); !! 65
67 int llc_build_and_send_pkt(struct sock *sk, st !! 66 /**
68 int llc_send_disc(struct sock *sk); !! 67 * llc_mac_null - determines if a address is a null mac address
>> 68 * @mac: Mac address to test if null.
>> 69 *
>> 70 * Determines if a given address is a null mac address. Returns 0 if the
>> 71 * address is not a null mac, 1 if the address is a null mac.
>> 72 */
>> 73 static __inline__ int llc_mac_null(u8 *mac)
>> 74 {
>> 75 return !memcmp(mac, llc_mac_null_var, IFHWADDRLEN);
>> 76 }
>> 77
>> 78 static __inline__ int llc_addrany(struct llc_addr *addr)
>> 79 {
>> 80 return llc_mac_null(addr->mac) && !addr->lsap;
>> 81 }
>> 82
>> 83 /**
>> 84 * llc_mac_match - determines if two mac addresses are the same
>> 85 * @mac1: First mac address to compare.
>> 86 * @mac2: Second mac address to compare.
>> 87 *
>> 88 * Determines if two given mac address are the same. Returns 0 if there
>> 89 * is not a complete match up to len, 1 if a complete match up to len is
>> 90 * found.
>> 91 */
>> 92 static __inline__ int llc_mac_match(u8 *mac1, u8 *mac2)
>> 93 {
>> 94 return !memcmp(mac1, mac2, IFHWADDRLEN);
>> 95 }
>> 96
>> 97 extern int llc_establish_connection(struct sock *sk, u8 *lmac,
>> 98 u8 *dmac, u8 dsap);
>> 99 extern int llc_build_and_send_pkt(struct sock *sk, struct sk_buff *skb);
>> 100 extern int llc_send_disc(struct sock *sk);
69 #endif /* LLC_IF_H */ 101 #endif /* LLC_IF_H */
70 102
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