From patchwork Thu Apr 16 16:56:54 2026 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Simon Glass X-Patchwork-Id: 2200 Return-Path: X-Original-To: u-boot-concept@u-boot.org Delivered-To: u-boot-concept@u-boot.org DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=u-boot.org; s=default; t=1776358738; bh=T1KBGlejgR6aBe5J6ev1DdDVPd3t5GEE5ZDVDicQ5oc=; h=From:To:Date:In-Reply-To:References:CC:Subject:List-Id: List-Archive:List-Help:List-Owner:List-Post:List-Subscribe: List-Unsubscribe:From; b=pKoqUKE5BvHc1cXehvUBRvTeIvPjipwT0aQg8yD9O3sk3R6YUllvB1Qhw/IfnzUKQ 888OGQJyLB9EAp8GG+UBOzvZljlJGqPAp4RTDSAlQLLvFgOsFhkWcXOXr4Tg4t6O3v Ut6COtthSFmLZOQaXmG5AV9//m/prfqKHXsb6Cxc= Received: from localhost (localhost [127.0.0.1]) by mail.u-boot.org (Postfix) with ESMTP id CB46F6A4D8 for ; Thu, 16 Apr 2026 10:58:58 -0600 (MDT) X-Virus-Scanned: Debian amavis at Received: from mail.u-boot.org ([127.0.0.1]) by localhost (mail.u-boot.org [127.0.0.1]) (amavis, port 10024) with ESMTP id Q6x__f-7z0EJ for ; Thu, 16 Apr 2026 10:58:58 -0600 (MDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=u-boot.org; s=default; t=1776358737; bh=T1KBGlejgR6aBe5J6ev1DdDVPd3t5GEE5ZDVDicQ5oc=; h=From:To:Date:In-Reply-To:References:CC:Subject:List-Id: List-Archive:List-Help:List-Owner:List-Post:List-Subscribe: List-Unsubscribe:From; b=ixe6KouzoYHZP7njSVnU2ueuH+0/zU9v3jffYAI3NkWNHKIGO2wKMLMBdHssfpRah dCRZ6IllseZ07omDkwx1GDvusIo1JpaWC/2mTLvL6k8geKn/T6/Gf1T/VMq6c4eIBN HkJ9mF1xe4ILy2RYH3qQsbK/h7OftwzYUj6WNhgk= Received: from mail.u-boot.org (localhost [127.0.0.1]) by mail.u-boot.org (Postfix) with ESMTP id 1A79B6A4E9 for ; Thu, 16 Apr 2026 10:58:57 -0600 (MDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=u-boot.org; s=default; t=1776358735; bh=KaHZ/K1dnVMt+L/1J1n9PZygkjfjHE7jQPdvKBLPy+4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=E2vv4P/YBv9GaItlRvlzk2uLpZDXJRdtVZrnH+SDUQ5tXyTB9pCagxNQ97wa6cpHE T57I2ed5ZlPDYy17YGS7nK5wtNBrNNfYodnEoIjX3LdUBkhzAUWhnzzDevhhA/LsOs my73n4fWeVH+aTQXa/L7IYd+KO9t3MMl8Ix/Iu1U= Received: from localhost (localhost [127.0.0.1]) by mail.u-boot.org (Postfix) with ESMTP id 8358A6A4DA; Thu, 16 Apr 2026 10:58:55 -0600 (MDT) X-Virus-Scanned: Debian amavis at Received: from mail.u-boot.org ([127.0.0.1]) by localhost (mail.u-boot.org [127.0.0.1]) (amavis, port 10026) with ESMTP id e8nl5n9G6fKo; Thu, 16 Apr 2026 10:58:55 -0600 (MDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=u-boot.org; s=default; t=1776358735; bh=/OGxPJemD6afiABqW72+QzaXztTRN9uYHzJEqJ0iafE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=RoR9o1teDLw2TKUvMeD2LVm5Sfroqorjhb/stqB2n9Nljd3ybIz5e30cIeEyU9ZLu LWNvPx1lJG+k37CrM/R98YZtbea1IafMaMpdGx+UgcvY6Q3UfIf6Pd1f7E2lAJ8yFC kYgJdPb746uYkRpHhJNW5WZIm3oDbTHbe763MTbg= Received: from u-boot.org (unknown [73.34.74.121]) by mail.u-boot.org (Postfix) with ESMTPSA id D2D406A4D8; Thu, 16 Apr 2026 10:58:54 -0600 (MDT) From: Simon Glass To: U-Boot Concept Date: Thu, 16 Apr 2026 10:56:54 -0600 Message-ID: <20260416165733.2923423-5-sjg@u-boot.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260416165733.2923423-1-sjg@u-boot.org> References: <20260416165733.2923423-1-sjg@u-boot.org> MIME-Version: 1.0 Message-ID-Hash: KJ4AZ3OLLD6TEK426PAFSYO6LP5FTLVY X-Message-ID-Hash: KJ4AZ3OLLD6TEK426PAFSYO6LP5FTLVY X-MailFrom: sjg@u-boot.org X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; loop; banned-address; emergency; member-moderation; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header CC: Simon Glass X-Mailman-Version: 3.3.10 Precedence: list Subject: [Concept] [PATCH 04/21] linux: Add ISO 9660 on-disk structure definitions List-Id: Discussion and patches related to U-Boot Concept Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: From: Simon Glass Add the ISO 9660 filesystem structure definitions from the Linux UAPI header. This includes volume descriptors, directory records, High Sierra format support, and the ISOFS_BLOCK_SIZE / ISOFS_BUFFER_SIZE macros needed by the isofs driver. Taken from Linux v7.0 include/uapi/linux/iso_fs.h without modification. Signed-off-by: Simon Glass --- include/linux/iso_fs.h | 166 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 166 insertions(+) create mode 100644 include/linux/iso_fs.h diff --git a/include/linux/iso_fs.h b/include/linux/iso_fs.h new file mode 100644 index 00000000000..758178f5b52 --- /dev/null +++ b/include/linux/iso_fs.h @@ -0,0 +1,166 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ +#ifndef _ISOFS_FS_H +#define _ISOFS_FS_H + +#include +#include + +/* + * The isofs filesystem constants/structures + */ + +/* This part borrowed from the bsd386 isofs */ +#define ISODCL(from, to) (to - from + 1) + +struct iso_volume_descriptor { + __u8 type[ISODCL(1,1)]; /* 711 */ + char id[ISODCL(2,6)]; + __u8 version[ISODCL(7,7)]; + __u8 data[ISODCL(8,2048)]; +}; + +/* volume descriptor types */ +#define ISO_VD_PRIMARY 1 +#define ISO_VD_SUPPLEMENTARY 2 +#define ISO_VD_END 255 + +#define ISO_STANDARD_ID "CD001" + +struct iso_primary_descriptor { + __u8 type [ISODCL ( 1, 1)]; /* 711 */ + char id [ISODCL ( 2, 6)]; + __u8 version [ISODCL ( 7, 7)]; /* 711 */ + __u8 unused1 [ISODCL ( 8, 8)]; + char system_id [ISODCL ( 9, 40)]; /* achars */ + char volume_id [ISODCL ( 41, 72)]; /* dchars */ + __u8 unused2 [ISODCL ( 73, 80)]; + __u8 volume_space_size [ISODCL ( 81, 88)]; /* 733 */ + __u8 unused3 [ISODCL ( 89, 120)]; + __u8 volume_set_size [ISODCL (121, 124)]; /* 723 */ + __u8 volume_sequence_number [ISODCL (125, 128)]; /* 723 */ + __u8 logical_block_size [ISODCL (129, 132)]; /* 723 */ + __u8 path_table_size [ISODCL (133, 140)]; /* 733 */ + __u8 type_l_path_table [ISODCL (141, 144)]; /* 731 */ + __u8 opt_type_l_path_table [ISODCL (145, 148)]; /* 731 */ + __u8 type_m_path_table [ISODCL (149, 152)]; /* 732 */ + __u8 opt_type_m_path_table [ISODCL (153, 156)]; /* 732 */ + __u8 root_directory_record [ISODCL (157, 190)]; /* 9.1 */ + char volume_set_id [ISODCL (191, 318)]; /* dchars */ + char publisher_id [ISODCL (319, 446)]; /* achars */ + char preparer_id [ISODCL (447, 574)]; /* achars */ + char application_id [ISODCL (575, 702)]; /* achars */ + char copyright_file_id [ISODCL (703, 739)]; /* 7.5 dchars */ + char abstract_file_id [ISODCL (740, 776)]; /* 7.5 dchars */ + char bibliographic_file_id [ISODCL (777, 813)]; /* 7.5 dchars */ + __u8 creation_date [ISODCL (814, 830)]; /* 8.4.26.1 */ + __u8 modification_date [ISODCL (831, 847)]; /* 8.4.26.1 */ + __u8 expiration_date [ISODCL (848, 864)]; /* 8.4.26.1 */ + __u8 effective_date [ISODCL (865, 881)]; /* 8.4.26.1 */ + __u8 file_structure_version [ISODCL (882, 882)]; /* 711 */ + __u8 unused4 [ISODCL (883, 883)]; + __u8 application_data [ISODCL (884, 1395)]; + __u8 unused5 [ISODCL (1396, 2048)]; +}; + +/* Almost the same as the primary descriptor but two fields are specified */ +struct iso_supplementary_descriptor { + __u8 type [ISODCL ( 1, 1)]; /* 711 */ + char id [ISODCL ( 2, 6)]; + __u8 version [ISODCL ( 7, 7)]; /* 711 */ + __u8 flags [ISODCL ( 8, 8)]; /* 853 */ + char system_id [ISODCL ( 9, 40)]; /* achars */ + char volume_id [ISODCL ( 41, 72)]; /* dchars */ + __u8 unused2 [ISODCL ( 73, 80)]; + __u8 volume_space_size [ISODCL ( 81, 88)]; /* 733 */ + __u8 escape [ISODCL ( 89, 120)]; /* 856 */ + __u8 volume_set_size [ISODCL (121, 124)]; /* 723 */ + __u8 volume_sequence_number [ISODCL (125, 128)]; /* 723 */ + __u8 logical_block_size [ISODCL (129, 132)]; /* 723 */ + __u8 path_table_size [ISODCL (133, 140)]; /* 733 */ + __u8 type_l_path_table [ISODCL (141, 144)]; /* 731 */ + __u8 opt_type_l_path_table [ISODCL (145, 148)]; /* 731 */ + __u8 type_m_path_table [ISODCL (149, 152)]; /* 732 */ + __u8 opt_type_m_path_table [ISODCL (153, 156)]; /* 732 */ + __u8 root_directory_record [ISODCL (157, 190)]; /* 9.1 */ + char volume_set_id [ISODCL (191, 318)]; /* dchars */ + char publisher_id [ISODCL (319, 446)]; /* achars */ + char preparer_id [ISODCL (447, 574)]; /* achars */ + char application_id [ISODCL (575, 702)]; /* achars */ + char copyright_file_id [ISODCL (703, 739)]; /* 7.5 dchars */ + char abstract_file_id [ISODCL (740, 776)]; /* 7.5 dchars */ + char bibliographic_file_id [ISODCL (777, 813)]; /* 7.5 dchars */ + __u8 creation_date [ISODCL (814, 830)]; /* 8.4.26.1 */ + __u8 modification_date [ISODCL (831, 847)]; /* 8.4.26.1 */ + __u8 expiration_date [ISODCL (848, 864)]; /* 8.4.26.1 */ + __u8 effective_date [ISODCL (865, 881)]; /* 8.4.26.1 */ + __u8 file_structure_version [ISODCL (882, 882)]; /* 711 */ + __u8 unused4 [ISODCL (883, 883)]; + __u8 application_data [ISODCL (884, 1395)]; + __u8 unused5 [ISODCL (1396, 2048)]; +}; + + +#define HS_STANDARD_ID "CDROM" + +struct hs_volume_descriptor { + __u8 foo [ISODCL ( 1, 8)]; /* 733 */ + __u8 type [ISODCL ( 9, 9)]; /* 711 */ + char id [ISODCL ( 10, 14)]; + __u8 version [ISODCL ( 15, 15)]; /* 711 */ + __u8 data[ISODCL(16,2048)]; +}; + + +struct hs_primary_descriptor { + __u8 foo [ISODCL ( 1, 8)]; /* 733 */ + __u8 type [ISODCL ( 9, 9)]; /* 711 */ + __u8 id [ISODCL ( 10, 14)]; + __u8 version [ISODCL ( 15, 15)]; /* 711 */ + __u8 unused1 [ISODCL ( 16, 16)]; /* 711 */ + char system_id [ISODCL ( 17, 48)]; /* achars */ + char volume_id [ISODCL ( 49, 80)]; /* dchars */ + __u8 unused2 [ISODCL ( 81, 88)]; /* 733 */ + __u8 volume_space_size [ISODCL ( 89, 96)]; /* 733 */ + __u8 unused3 [ISODCL ( 97, 128)]; /* 733 */ + __u8 volume_set_size [ISODCL (129, 132)]; /* 723 */ + __u8 volume_sequence_number [ISODCL (133, 136)]; /* 723 */ + __u8 logical_block_size [ISODCL (137, 140)]; /* 723 */ + __u8 path_table_size [ISODCL (141, 148)]; /* 733 */ + __u8 type_l_path_table [ISODCL (149, 152)]; /* 731 */ + __u8 unused4 [ISODCL (153, 180)]; /* 733 */ + __u8 root_directory_record [ISODCL (181, 214)]; /* 9.1 */ +}; + +/* We use this to help us look up the parent inode numbers. */ + +struct iso_path_table{ + __u8 name_len[2]; /* 721 */ + __u8 extent[4]; /* 731 */ + __u8 parent[2]; /* 721 */ + char name[]; +} __attribute__((packed)); + +/* high sierra is identical to iso, except that the date is only 6 bytes, and + there is an extra reserved byte after the flags */ + +struct iso_directory_record { + __u8 length [ISODCL (1, 1)]; /* 711 */ + __u8 ext_attr_length [ISODCL (2, 2)]; /* 711 */ + __u8 extent [ISODCL (3, 10)]; /* 733 */ + __u8 size [ISODCL (11, 18)]; /* 733 */ + __u8 date [ISODCL (19, 25)]; /* 7 by 711 */ + __u8 flags [ISODCL (26, 26)]; + __u8 file_unit_size [ISODCL (27, 27)]; /* 711 */ + __u8 interleave [ISODCL (28, 28)]; /* 711 */ + __u8 volume_sequence_number [ISODCL (29, 32)]; /* 723 */ + __u8 name_len [ISODCL (33, 33)]; /* 711 */ + char name []; +} __attribute__((packed)); + +#define ISOFS_BLOCK_BITS 11 +#define ISOFS_BLOCK_SIZE 2048 + +#define ISOFS_BUFFER_SIZE(INODE) ((INODE)->i_sb->s_blocksize) +#define ISOFS_BUFFER_BITS(INODE) ((INODE)->i_sb->s_blocksize_bits) + +#endif /* _ISOFS_FS_H */