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Diffstat (limited to 'include/net/llc_if.h')
| -rw-r--r-- | include/net/llc_if.h | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/include/net/llc_if.h b/include/net/llc_if.h new file mode 100644 index 00000000000..090eaa0d71f --- /dev/null +++ b/include/net/llc_if.h @@ -0,0 +1,101 @@ +#ifndef LLC_IF_H +#define LLC_IF_H +/* + * Copyright (c) 1997 by Procom Technology,Inc. + * 2001 by Arnaldo Carvalho de Melo <acme@conectiva.com.br> + * + * This program can be redistributed or modified under the terms of the + * GNU General Public License as published by the Free Software Foundation. + * This program is distributed without any warranty or implied warranty + * of merchantability or fitness for a particular purpose. + * + * See the GNU General Public License for more details. + */ +/* Defines LLC interface to network layer */ +/* Available primitives */ +#include <linux/if.h> +#include <linux/if_arp.h> +#include <linux/llc.h> +#include <net/llc.h> + +#define LLC_DATAUNIT_PRIM 1 +#define LLC_CONN_PRIM 2 +#define LLC_DATA_PRIM 3 +#define LLC_DISC_PRIM 4 +#define LLC_RESET_PRIM 5 +#define LLC_FLOWCONTROL_PRIM 6 /* Not supported at this time */ +#define LLC_DISABLE_PRIM 7 +#define LLC_XID_PRIM 8 +#define LLC_TEST_PRIM 9 +#define LLC_SAP_ACTIVATION 10 +#define LLC_SAP_DEACTIVATION 11 + +#define LLC_NBR_PRIMITIVES 11 + +#define LLC_IND 1 +#define LLC_CONFIRM 2 + +/* Primitive type */ +#define LLC_PRIM_TYPE_REQ 1 +#define LLC_PRIM_TYPE_IND 2 +#define LLC_PRIM_TYPE_RESP 3 +#define LLC_PRIM_TYPE_CONFIRM 4 + +/* Reset reasons, remote entity or local LLC */ +#define LLC_RESET_REASON_REMOTE 1 +#define LLC_RESET_REASON_LOCAL 2 + +/* Disconnect reasons */ +#define LLC_DISC_REASON_RX_DM_RSP_PDU 0 +#define LLC_DISC_REASON_RX_DISC_CMD_PDU 1 +#define LLC_DISC_REASON_ACK_TMR_EXP 2 + +/* Confirm reasons */ +#define LLC_STATUS_CONN 0 /* connect confirm & reset confirm */ +#define LLC_STATUS_DISC 1 /* connect confirm & reset confirm */ +#define LLC_STATUS_FAILED 2 /* connect confirm & reset confirm */ +#define LLC_STATUS_IMPOSSIBLE 3 /* connect confirm */ +#define LLC_STATUS_RECEIVED 4 /* data conn */ +#define LLC_STATUS_REMOTE_BUSY 5 /* data conn */ +#define LLC_STATUS_REFUSE 6 /* data conn */ +#define LLC_STATUS_CONFLICT 7 /* disconnect conn */ +#define LLC_STATUS_RESET_DONE 8 /* */ + +extern u8 llc_mac_null_var[IFHWADDRLEN]; + +/** + * llc_mac_null - determines if a address is a null mac address + * @mac: Mac address to test if null. + * + * Determines if a given address is a null mac address. Returns 0 if the + * address is not a null mac, 1 if the address is a null mac. + */ +static __inline__ int llc_mac_null(u8 *mac) +{ + return !memcmp(mac, llc_mac_null_var, IFHWADDRLEN); +} + +static __inline__ int llc_addrany(struct llc_addr *addr) +{ + return llc_mac_null(addr->mac) && !addr->lsap; +} + +/** + * llc_mac_match - determines if two mac addresses are the same + * @mac1: First mac address to compare. + * @mac2: Second mac address to compare. + * + * Determines if two given mac address are the same. Returns 0 if there + * is not a complete match up to len, 1 if a complete match up to len is + * found. + */ +static __inline__ int llc_mac_match(u8 *mac1, u8 *mac2) +{ + return !memcmp(mac1, mac2, IFHWADDRLEN); +} + +extern int llc_establish_connection(struct sock *sk, u8 *lmac, + u8 *dmac, u8 dsap); +extern int llc_build_and_send_pkt(struct sock *sk, struct sk_buff *skb); +extern int llc_send_disc(struct sock *sk); +#endif /* LLC_IF_H */ |