X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/e5568f75972dfc723778653c11cb6b4dc825716a..bb59bff194111743b33cc36712410b5656329d3c:/bsd/net/if_llc.h diff --git a/bsd/net/if_llc.h b/bsd/net/if_llc.h index 536b68e8b..dade70621 100644 --- a/bsd/net/if_llc.h +++ b/bsd/net/if_llc.h @@ -1,23 +1,29 @@ /* - * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. + * Copyright (c) 2000,2009 Apple Inc. All rights reserved. * - * @APPLE_LICENSE_HEADER_START@ + * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * - * The contents of this file constitute Original Code as defined in and - * are subject to the Apple Public Source License Version 1.1 (the - * "License"). You may not use this file except in compliance with the - * License. Please obtain a copy of the License at - * http://www.apple.com/publicsource and read it before using this file. + * This file contains Original Code and/or Modifications of Original Code + * as defined in and that are subject to the Apple Public Source License + * Version 2.0 (the 'License'). You may not use this file except in + * compliance with the License. The rights granted to you under the License + * may not be used to create, or enable the creation or redistribution of, + * unlawful or unlicensed copies of an Apple operating system, or to + * circumvent, violate, or enable the circumvention or violation of, any + * terms of an Apple operating system software license agreement. * - * This Original Code and all software distributed under the License are - * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER + * Please obtain a copy of the License at + * http://www.opensource.apple.com/apsl/ and read it before using this file. + * + * The Original Code and all software distributed under the License are + * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the - * License for the specific language governing rights and limitations - * under the License. + * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. + * Please see the License for the specific language governing rights and + * limitations under the License. * - * @APPLE_LICENSE_HEADER_END@ + * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ /* * Copyright (c) 1988, 1993 @@ -31,11 +37,7 @@ * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors + * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * @@ -51,7 +53,7 @@ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * - * @(#)if_llc.h 8.1 (Berkeley) 6/10/93 + * @(#)if_llc.h 8.1 (Berkeley) 6/10/93 */ #ifndef _NET_IF_LLC_H_ @@ -67,55 +69,67 @@ */ struct llc { - u_char llc_dsap; - u_char llc_ssap; + u_int8_t llc_dsap; + u_int8_t llc_ssap; union { struct { - u_char control; - u_char format_id; - u_char class_id; - u_char window_x2; + u_int8_t control; + u_int8_t format_id; + u_int8_t class_id; + u_int8_t window_x2; } type_u; struct { - u_char num_snd_x2; - u_char num_rcv_x2; + u_int8_t num_snd_x2; + u_int8_t num_rcv_x2; } type_i; struct { - u_char control; - u_char num_rcv_x2; + u_int8_t control; + u_int8_t num_rcv_x2; } type_s; struct { - u_char control; - struct frmrinfo { - u_char rej_pdu_0; - u_char rej_pdu_1; - u_char frmr_control; - u_char frmr_control_ext; - u_char frmr_cause; - } frmrinfo; + u_int8_t control; + /* + * We cannot put the following fields in a structure because + * the structure rounding might cause padding. + */ + u_int8_t frmr_rej_pdu0; + u_int8_t frmr_rej_pdu1; + u_int8_t frmr_control; + u_int8_t frmr_control_ext; + u_int8_t frmr_cause; } type_frmr; struct { - u_char control; - u_char org_code[3]; - u_short ether_type; - } type_snap; + u_int8_t control; + u_int8_t org_code[3]; + u_int16_t ether_type; + } type_snap __attribute__((__packed__)); struct { - u_char control; - u_char control_ext; + u_int8_t control; + u_int8_t control_ext; } type_raw; } llc_un; -}; -#define llc_control llc_un.type_u.control -#define llc_control_ext llc_un.type_raw.control_ext -#define llc_fid llc_un.type_u.format_id -#define llc_class llc_un.type_u.class_id -#define llc_window llc_un.type_u.window_x2 -#define llc_frmrinfo llc_un.type_frmr.frmrinfo -#define llc_frmr_pdu0 llc_un.type_frmr.frmrinfo.rej_pdu0 -#define llc_frmr_pdu1 llc_un.type_frmr.frmrinfo.rej_pdu1 -#define llc_frmr_control llc_un.type_frmr.frmrinfo.frmr_control -#define llc_frmr_control_ext llc_un.type_frmr.frmrinfo.frmr_control_ext -#define llc_frmr_cause llc_un.type_frmr.frmrinfo.frmr_control_ext +} __attribute__((__packed__)); + +struct frmrinfo { + u_int8_t frmr_rej_pdu0; + u_int8_t frmr_rej_pdu1; + u_int8_t frmr_control; + u_int8_t frmr_control_ext; + u_int8_t frmr_cause; +} __attribute__((__packed__)); + +#define llc_control llc_un.type_u.control +#define llc_control_ext llc_un.type_raw.control_ext +#define llc_fid llc_un.type_u.format_id +#define llc_class llc_un.type_u.class +#define llc_window llc_un.type_u.window_x2 +#define llc_frmrinfo llc_un.type_frmr.frmr_rej_pdu0 +#define llc_frmr_pdu0 llc_un.type_frmr.frmr_rej_pdu0 +#define llc_frmr_pdu1 llc_un.type_frmr.frmr_rej_pdu1 +#define llc_frmr_control llc_un.type_frmr.frmr_control +#define llc_frmr_control_ext llc_un.type_frmr.frmr_control_ext +#define llc_frmr_cause llc_un.type_frmr.frmr_cause +#define llc_snap llc_un.type_snap /* * Don't use sizeof(struct llc_un) for LLC header sizes @@ -123,6 +137,7 @@ struct llc { #define LLC_ISFRAMELEN 4 #define LLC_UFRAMELEN 3 #define LLC_FRMRLEN 7 +#define LLC_SNAPFRAMELEN 8 /* * Unnumbered LLC format commands @@ -159,8 +174,22 @@ struct llc { /* * ISO PDTR 10178 contains among others */ +#define LLC_8021D_LSAP 0x42 #define LLC_X25_LSAP 0x7e #define LLC_SNAP_LSAP 0xaa #define LLC_ISO_LSAP 0xfe -#endif +/* + * LLC XID definitions from 802.2, as needed + */ + +#define LLC_XID_FORMAT_BASIC 0x81 +#define LLC_XID_BASIC_MINLEN (LLC_UFRAMELEN + 3) + +#define LLC_XID_CLASS_I 0x1 +#define LLC_XID_CLASS_II 0x3 +#define LLC_XID_CLASS_III 0x5 +#define LLC_XID_CLASS_IV 0x7 + + +#endif /* !_NET_IF_LLC_H_ */