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b24413180f
Many source files in the tree are missing licensing information, which makes it harder for compliance tools to determine the correct license. By default all files without license information are under the default license of the kernel, which is GPL version 2. Update the files which contain no license information with the 'GPL-2.0' SPDX license identifier. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. How this work was done: Patches were generated and checked against linux-4.14-rc6 for a subset of the use cases: - file had no licensing information it it. - file was a */uapi/* one with no licensing information in it, - file was a */uapi/* one with existing licensing information, Further patches will be generated in subsequent months to fix up cases where non-standard license headers were used, and references to license had to be inferred by heuristics based on keywords. The analysis to determine which SPDX License Identifier to be applied to a file was done in a spreadsheet of side by side results from of the output of two independent scanners (ScanCode & Windriver) producing SPDX tag:value files created by Philippe Ombredanne. Philippe prepared the base worksheet, and did an initial spot review of a few 1000 files. The 4.13 kernel was the starting point of the analysis with 60,537 files assessed. Kate Stewart did a file by file comparison of the scanner results in the spreadsheet to determine which SPDX license identifier(s) to be applied to the file. She confirmed any determination that was not immediately clear with lawyers working with the Linux Foundation. Criteria used to select files for SPDX license identifier tagging was: - Files considered eligible had to be source code files. - Make and config files were included as candidates if they contained >5 lines of source - File already had some variant of a license header in it (even if <5 lines). All documentation files were explicitly excluded. The following heuristics were used to determine which SPDX license identifiers to apply. - when both scanners couldn't find any license traces, file was considered to have no license information in it, and the top level COPYING file license applied. For non */uapi/* files that summary was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 11139 and resulted in the first patch in this series. If that file was a */uapi/* path one, it was "GPL-2.0 WITH Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 WITH Linux-syscall-note 930 and resulted in the second patch in this series. - if a file had some form of licensing information in it, and was one of the */uapi/* ones, it was denoted with the Linux-syscall-note if any GPL family license was found in the file or had no licensing in it (per prior point). Results summary: SPDX license identifier # files ---------------------------------------------------|------ GPL-2.0 WITH Linux-syscall-note 270 GPL-2.0+ WITH Linux-syscall-note 169 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17 LGPL-2.1+ WITH Linux-syscall-note 15 GPL-1.0+ WITH Linux-syscall-note 14 ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5 LGPL-2.0+ WITH Linux-syscall-note 4 LGPL-2.1 WITH Linux-syscall-note 3 ((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3 ((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1 and that resulted in the third patch in this series. - when the two scanners agreed on the detected license(s), that became the concluded license(s). - when there was disagreement between the two scanners (one detected a license but the other didn't, or they both detected different licenses) a manual inspection of the file occurred. - In most cases a manual inspection of the information in the file resulted in a clear resolution of the license that should apply (and which scanner probably needed to revisit its heuristics). - When it was not immediately clear, the license identifier was confirmed with lawyers working with the Linux Foundation. - If there was any question as to the appropriate license identifier, the file was flagged for further research and to be revisited later in time. In total, over 70 hours of logged manual review was done on the spreadsheet to determine the SPDX license identifiers to apply to the source files by Kate, Philippe, Thomas and, in some cases, confirmation by lawyers working with the Linux Foundation. Kate also obtained a third independent scan of the 4.13 code base from FOSSology, and compared selected files where the other two scanners disagreed against that SPDX file, to see if there was new insights. The Windriver scanner is based on an older version of FOSSology in part, so they are related. Thomas did random spot checks in about 500 files from the spreadsheets for the uapi headers and agreed with SPDX license identifier in the files he inspected. For the non-uapi files Thomas did random spot checks in about 15000 files. In initial set of patches against 4.14-rc6, 3 files were found to have copy/paste license identifier errors, and have been fixed to reflect the correct identifier. Additionally Philippe spent 10 hours this week doing a detailed manual inspection and review of the 12,461 patched files from the initial patch version early this week with: - a full scancode scan run, collecting the matched texts, detected license ids and scores - reviewing anything where there was a license detected (about 500+ files) to ensure that the applied SPDX license was correct - reviewing anything where there was no detection but the patch license was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied SPDX license was correct This produced a worksheet with 20 files needing minor correction. This worksheet was then exported into 3 different .csv files for the different types of files to be modified. These .csv files were then reviewed by Greg. Thomas wrote a script to parse the csv files and add the proper SPDX tag to the file, in the format that the file expected. This script was further refined by Greg based on the output to detect more types of files automatically and to distinguish between header and source .c files (which need different comment types.) Finally Greg ran the script using the .csv files to generate the patches. Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
189 lines
4.4 KiB
C
189 lines
4.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __LINUX_UDF_SB_H
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#define __LINUX_UDF_SB_H
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#include <linux/mutex.h>
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#include <linux/bitops.h>
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#include <linux/magic.h>
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#define UDF_MAX_READ_VERSION 0x0250
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#define UDF_MAX_WRITE_VERSION 0x0201
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#define UDF_FLAG_USE_EXTENDED_FE 0
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#define UDF_VERS_USE_EXTENDED_FE 0x0200
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#define UDF_FLAG_USE_STREAMS 1
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#define UDF_VERS_USE_STREAMS 0x0200
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#define UDF_FLAG_USE_SHORT_AD 2
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#define UDF_FLAG_USE_AD_IN_ICB 3
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#define UDF_FLAG_USE_FILE_CTIME_EA 4
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#define UDF_FLAG_STRICT 5
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#define UDF_FLAG_UNDELETE 6
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#define UDF_FLAG_UNHIDE 7
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#define UDF_FLAG_VARCONV 8
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#define UDF_FLAG_NLS_MAP 9
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#define UDF_FLAG_UTF8 10
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#define UDF_FLAG_UID_FORGET 11 /* save -1 for uid to disk */
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#define UDF_FLAG_UID_IGNORE 12 /* use sb uid instead of on disk uid */
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#define UDF_FLAG_GID_FORGET 13
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#define UDF_FLAG_GID_IGNORE 14
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#define UDF_FLAG_UID_SET 15
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#define UDF_FLAG_GID_SET 16
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#define UDF_FLAG_SESSION_SET 17
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#define UDF_FLAG_LASTBLOCK_SET 18
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#define UDF_FLAG_BLOCKSIZE_SET 19
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#define UDF_PART_FLAG_UNALLOC_BITMAP 0x0001
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#define UDF_PART_FLAG_UNALLOC_TABLE 0x0002
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#define UDF_PART_FLAG_FREED_BITMAP 0x0004
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#define UDF_PART_FLAG_FREED_TABLE 0x0008
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#define UDF_PART_FLAG_READ_ONLY 0x0010
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#define UDF_PART_FLAG_WRITE_ONCE 0x0020
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#define UDF_PART_FLAG_REWRITABLE 0x0040
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#define UDF_PART_FLAG_OVERWRITABLE 0x0080
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#define UDF_MAX_BLOCK_LOADED 8
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#define UDF_TYPE1_MAP15 0x1511U
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#define UDF_VIRTUAL_MAP15 0x1512U
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#define UDF_VIRTUAL_MAP20 0x2012U
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#define UDF_SPARABLE_MAP15 0x1522U
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#define UDF_METADATA_MAP25 0x2511U
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#define UDF_INVALID_MODE ((umode_t)-1)
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#pragma pack(1) /* XXX(hch): Why? This file just defines in-core structures */
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#define MF_DUPLICATE_MD 0x01
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#define MF_MIRROR_FE_LOADED 0x02
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struct udf_meta_data {
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__u32 s_meta_file_loc;
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__u32 s_mirror_file_loc;
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__u32 s_bitmap_file_loc;
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__u32 s_alloc_unit_size;
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__u16 s_align_unit_size;
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/*
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* Partition Reference Number of the associated physical / sparable
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* partition
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*/
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__u16 s_phys_partition_ref;
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int s_flags;
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struct inode *s_metadata_fe;
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struct inode *s_mirror_fe;
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struct inode *s_bitmap_fe;
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};
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struct udf_sparing_data {
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__u16 s_packet_len;
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struct buffer_head *s_spar_map[4];
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};
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struct udf_virtual_data {
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__u32 s_num_entries;
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__u16 s_start_offset;
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};
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struct udf_bitmap {
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__u32 s_extPosition;
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int s_nr_groups;
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struct buffer_head *s_block_bitmap[0];
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};
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struct udf_part_map {
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union {
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struct udf_bitmap *s_bitmap;
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struct inode *s_table;
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} s_uspace;
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union {
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struct udf_bitmap *s_bitmap;
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struct inode *s_table;
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} s_fspace;
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__u32 s_partition_root;
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__u32 s_partition_len;
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__u16 s_partition_type;
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__u16 s_partition_num;
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union {
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struct udf_sparing_data s_sparing;
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struct udf_virtual_data s_virtual;
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struct udf_meta_data s_metadata;
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} s_type_specific;
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__u32 (*s_partition_func)(struct super_block *, __u32, __u16, __u32);
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__u16 s_volumeseqnum;
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__u16 s_partition_flags;
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};
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#pragma pack()
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struct udf_sb_info {
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struct udf_part_map *s_partmaps;
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__u8 s_volume_ident[32];
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/* Overall info */
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__u16 s_partitions;
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__u16 s_partition;
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/* Sector headers */
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__s32 s_session;
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__u32 s_anchor;
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__u32 s_last_block;
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struct buffer_head *s_lvid_bh;
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/* Default permissions */
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umode_t s_umask;
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kgid_t s_gid;
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kuid_t s_uid;
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umode_t s_fmode;
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umode_t s_dmode;
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/* Lock protecting consistency of above permission settings */
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rwlock_t s_cred_lock;
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/* Root Info */
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struct timespec s_record_time;
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/* Fileset Info */
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__u16 s_serial_number;
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/* highest UDF revision we have recorded to this media */
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__u16 s_udfrev;
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/* Miscellaneous flags */
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unsigned long s_flags;
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/* Encoding info */
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struct nls_table *s_nls_map;
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/* VAT inode */
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struct inode *s_vat_inode;
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struct mutex s_alloc_mutex;
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/* Protected by s_alloc_mutex */
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unsigned int s_lvid_dirty;
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};
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static inline struct udf_sb_info *UDF_SB(struct super_block *sb)
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{
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return sb->s_fs_info;
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}
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struct logicalVolIntegrityDescImpUse *udf_sb_lvidiu(struct super_block *sb);
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int udf_compute_nr_groups(struct super_block *sb, u32 partition);
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static inline int UDF_QUERY_FLAG(struct super_block *sb, int flag)
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{
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return test_bit(flag, &UDF_SB(sb)->s_flags);
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}
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static inline void UDF_SET_FLAG(struct super_block *sb, int flag)
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{
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set_bit(flag, &UDF_SB(sb)->s_flags);
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}
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static inline void UDF_CLEAR_FLAG(struct super_block *sb, int flag)
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{
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clear_bit(flag, &UDF_SB(sb)->s_flags);
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}
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#endif /* __LINUX_UDF_SB_H */
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