b24413180f560 (Greg Kroah-Hartman 2017-11-01 15:07:57 +0100 1) // SPDX-License-Identifier: GPL-2.0
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2) /*
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 3) * linux/fs/hfsplus/options.c
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 4) *
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 5) * Copyright (C) 2001
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 6) * Brad Boyer (flar@allandria.com)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 7) * (C) 2003 Ardis Technologies <roman@ardistech.com>
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 8) *
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 9) * Option parsing
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 10) */
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 11)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 12) #include <linux/string.h>
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 13) #include <linux/kernel.h>
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 14) #include <linux/sched.h>
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 15) #include <linux/parser.h>
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 16) #include <linux/nls.h>
717dd80e999cd (Roman Zippel 2005-09-06 15:18:48 -0700 17) #include <linux/mount.h>
717dd80e999cd (Roman Zippel 2005-09-06 15:18:48 -0700 18) #include <linux/seq_file.h>
5a0e3ad6af866 (Tejun Heo 2010-03-24 17:04:11 +0900 19) #include <linux/slab.h>
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 20) #include "hfsplus_fs.h"
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 21)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 22) enum {
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 23) opt_creator, opt_type,
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 24) opt_umask, opt_uid, opt_gid,
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 25) opt_part, opt_session, opt_nls,
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 26) opt_nodecompose, opt_decompose,
34a2d313c51f4 (Christoph Hellwig 2010-11-23 14:38:21 +0100 27) opt_barrier, opt_nobarrier,
b0b623c3b22d5 (Roman Zippel 2005-11-29 19:34:41 -0800 28) opt_force, opt_err
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 29) };
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 30)
a447c0932445f (Steven Whitehouse 2008-10-13 10:46:57 +0100 31) static const match_table_t tokens = {
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 32) { opt_creator, "creator=%s" },
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 33) { opt_type, "type=%s" },
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 34) { opt_umask, "umask=%o" },
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 35) { opt_uid, "uid=%u" },
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 36) { opt_gid, "gid=%u" },
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 37) { opt_part, "part=%u" },
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 38) { opt_session, "session=%u" },
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 39) { opt_nls, "nls=%s" },
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 40) { opt_decompose, "decompose" },
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 41) { opt_nodecompose, "nodecompose" },
34a2d313c51f4 (Christoph Hellwig 2010-11-23 14:38:21 +0100 42) { opt_barrier, "barrier" },
34a2d313c51f4 (Christoph Hellwig 2010-11-23 14:38:21 +0100 43) { opt_nobarrier, "nobarrier" },
b0b623c3b22d5 (Roman Zippel 2005-11-29 19:34:41 -0800 44) { opt_force, "force" },
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 45) { opt_err, NULL }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 46) };
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 47)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 48) /* Initialize an options object to reasonable defaults */
717dd80e999cd (Roman Zippel 2005-09-06 15:18:48 -0700 49) void hfsplus_fill_defaults(struct hfsplus_sb_info *opts)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 50) {
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 51) if (!opts)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 52) return;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 53)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 54) opts->creator = HFSPLUS_DEF_CR_TYPE;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 55) opts->type = HFSPLUS_DEF_CR_TYPE;
ce3b0f8d5c220 (Al Viro 2009-03-29 19:08:22 -0400 56) opts->umask = current_umask();
4ac8489a7294d (David Howells 2008-11-14 10:38:54 +1100 57) opts->uid = current_uid();
4ac8489a7294d (David Howells 2008-11-14 10:38:54 +1100 58) opts->gid = current_gid();
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 59) opts->part = -1;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 60) opts->session = -1;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 61) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 62)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 63) /* convert a "four byte character" to a 32 bit int with error checks */
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 64) static inline int match_fourchar(substring_t *arg, u32 *result)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 65) {
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 66) if (arg->to - arg->from != 4)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 67) return -EINVAL;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 68) memcpy(result, arg->from, 4);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 69) return 0;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 70) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 71)
6f80dfe55fcbd (Christoph Hellwig 2010-11-07 23:01:17 +0100 72) int hfsplus_parse_options_remount(char *input, int *force)
6f80dfe55fcbd (Christoph Hellwig 2010-11-07 23:01:17 +0100 73) {
6f80dfe55fcbd (Christoph Hellwig 2010-11-07 23:01:17 +0100 74) char *p;
6f80dfe55fcbd (Christoph Hellwig 2010-11-07 23:01:17 +0100 75) substring_t args[MAX_OPT_ARGS];
6f80dfe55fcbd (Christoph Hellwig 2010-11-07 23:01:17 +0100 76) int token;
6f80dfe55fcbd (Christoph Hellwig 2010-11-07 23:01:17 +0100 77)
6f80dfe55fcbd (Christoph Hellwig 2010-11-07 23:01:17 +0100 78) if (!input)
bd2c00353286d (Vyacheslav Dubeyko 2014-03-03 15:38:35 -0800 79) return 1;
6f80dfe55fcbd (Christoph Hellwig 2010-11-07 23:01:17 +0100 80)
6f80dfe55fcbd (Christoph Hellwig 2010-11-07 23:01:17 +0100 81) while ((p = strsep(&input, ",")) != NULL) {
6f80dfe55fcbd (Christoph Hellwig 2010-11-07 23:01:17 +0100 82) if (!*p)
6f80dfe55fcbd (Christoph Hellwig 2010-11-07 23:01:17 +0100 83) continue;
6f80dfe55fcbd (Christoph Hellwig 2010-11-07 23:01:17 +0100 84)
6f80dfe55fcbd (Christoph Hellwig 2010-11-07 23:01:17 +0100 85) token = match_token(p, tokens, args);
6f80dfe55fcbd (Christoph Hellwig 2010-11-07 23:01:17 +0100 86) switch (token) {
6f80dfe55fcbd (Christoph Hellwig 2010-11-07 23:01:17 +0100 87) case opt_force:
6f80dfe55fcbd (Christoph Hellwig 2010-11-07 23:01:17 +0100 88) *force = 1;
6f80dfe55fcbd (Christoph Hellwig 2010-11-07 23:01:17 +0100 89) break;
6f80dfe55fcbd (Christoph Hellwig 2010-11-07 23:01:17 +0100 90) default:
6f80dfe55fcbd (Christoph Hellwig 2010-11-07 23:01:17 +0100 91) break;
6f80dfe55fcbd (Christoph Hellwig 2010-11-07 23:01:17 +0100 92) }
6f80dfe55fcbd (Christoph Hellwig 2010-11-07 23:01:17 +0100 93) }
6f80dfe55fcbd (Christoph Hellwig 2010-11-07 23:01:17 +0100 94)
6f80dfe55fcbd (Christoph Hellwig 2010-11-07 23:01:17 +0100 95) return 1;
6f80dfe55fcbd (Christoph Hellwig 2010-11-07 23:01:17 +0100 96) }
6f80dfe55fcbd (Christoph Hellwig 2010-11-07 23:01:17 +0100 97)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 98) /* Parse options from mount. Returns 0 on failure */
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 99) /* input is the options passed to mount() as a string */
717dd80e999cd (Roman Zippel 2005-09-06 15:18:48 -0700 100) int hfsplus_parse_options(char *input, struct hfsplus_sb_info *sbi)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 101) {
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 102) char *p;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 103) substring_t args[MAX_OPT_ARGS];
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 104) int tmp, token;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 105)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 106) if (!input)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 107) goto done;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 108)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 109) while ((p = strsep(&input, ",")) != NULL) {
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 110) if (!*p)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 111) continue;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 112)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 113) token = match_token(p, tokens, args);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 114) switch (token) {
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 115) case opt_creator:
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 116) if (match_fourchar(&args[0], &sbi->creator)) {
d614267329f2b (Joe Perches 2013-04-30 15:27:55 -0700 117) pr_err("creator requires a 4 character value\n");
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 118) return 0;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 119) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 120) break;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 121) case opt_type:
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 122) if (match_fourchar(&args[0], &sbi->type)) {
d614267329f2b (Joe Perches 2013-04-30 15:27:55 -0700 123) pr_err("type requires a 4 character value\n");
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 124) return 0;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 125) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 126) break;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 127) case opt_umask:
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 128) if (match_octal(&args[0], &tmp)) {
d614267329f2b (Joe Perches 2013-04-30 15:27:55 -0700 129) pr_err("umask requires a value\n");
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 130) return 0;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 131) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 132) sbi->umask = (umode_t)tmp;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 133) break;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 134) case opt_uid:
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 135) if (match_int(&args[0], &tmp)) {
d614267329f2b (Joe Perches 2013-04-30 15:27:55 -0700 136) pr_err("uid requires an argument\n");
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 137) return 0;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 138) }
16525e3f146fb (Eric W. Biederman 2012-02-07 16:27:17 -0800 139) sbi->uid = make_kuid(current_user_ns(), (uid_t)tmp);
16525e3f146fb (Eric W. Biederman 2012-02-07 16:27:17 -0800 140) if (!uid_valid(sbi->uid)) {
d614267329f2b (Joe Perches 2013-04-30 15:27:55 -0700 141) pr_err("invalid uid specified\n");
16525e3f146fb (Eric W. Biederman 2012-02-07 16:27:17 -0800 142) return 0;
16525e3f146fb (Eric W. Biederman 2012-02-07 16:27:17 -0800 143) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 144) break;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 145) case opt_gid:
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 146) if (match_int(&args[0], &tmp)) {
d614267329f2b (Joe Perches 2013-04-30 15:27:55 -0700 147) pr_err("gid requires an argument\n");
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 148) return 0;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 149) }
16525e3f146fb (Eric W. Biederman 2012-02-07 16:27:17 -0800 150) sbi->gid = make_kgid(current_user_ns(), (gid_t)tmp);
16525e3f146fb (Eric W. Biederman 2012-02-07 16:27:17 -0800 151) if (!gid_valid(sbi->gid)) {
d614267329f2b (Joe Perches 2013-04-30 15:27:55 -0700 152) pr_err("invalid gid specified\n");
16525e3f146fb (Eric W. Biederman 2012-02-07 16:27:17 -0800 153) return 0;
16525e3f146fb (Eric W. Biederman 2012-02-07 16:27:17 -0800 154) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 155) break;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 156) case opt_part:
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 157) if (match_int(&args[0], &sbi->part)) {
d614267329f2b (Joe Perches 2013-04-30 15:27:55 -0700 158) pr_err("part requires an argument\n");
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 159) return 0;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 160) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 161) break;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 162) case opt_session:
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 163) if (match_int(&args[0], &sbi->session)) {
d614267329f2b (Joe Perches 2013-04-30 15:27:55 -0700 164) pr_err("session requires an argument\n");
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 165) return 0;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 166) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 167) break;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 168) case opt_nls:
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 169) if (sbi->nls) {
d614267329f2b (Joe Perches 2013-04-30 15:27:55 -0700 170) pr_err("unable to change nls mapping\n");
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 171) return 0;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 172) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 173) p = match_strdup(&args[0]);
cd6fda36089cf (Jim Meyering 2008-04-29 00:59:08 -0700 174) if (p)
cd6fda36089cf (Jim Meyering 2008-04-29 00:59:08 -0700 175) sbi->nls = load_nls(p);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 176) if (!sbi->nls) {
d8983ca0aa86c (Fabian Frederick 2014-06-06 14:36:26 -0700 177) pr_err("unable to load nls mapping \"%s\"\n",
d8983ca0aa86c (Fabian Frederick 2014-06-06 14:36:26 -0700 178) p);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 179) kfree(p);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 180) return 0;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 181) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 182) kfree(p);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 183) break;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 184) case opt_decompose:
84adede31267a (Christoph Hellwig 2010-10-01 05:45:20 +0200 185) clear_bit(HFSPLUS_SB_NODECOMPOSE, &sbi->flags);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 186) break;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 187) case opt_nodecompose:
84adede31267a (Christoph Hellwig 2010-10-01 05:45:20 +0200 188) set_bit(HFSPLUS_SB_NODECOMPOSE, &sbi->flags);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 189) break;
34a2d313c51f4 (Christoph Hellwig 2010-11-23 14:38:21 +0100 190) case opt_barrier:
34a2d313c51f4 (Christoph Hellwig 2010-11-23 14:38:21 +0100 191) clear_bit(HFSPLUS_SB_NOBARRIER, &sbi->flags);
34a2d313c51f4 (Christoph Hellwig 2010-11-23 14:38:21 +0100 192) break;
34a2d313c51f4 (Christoph Hellwig 2010-11-23 14:38:21 +0100 193) case opt_nobarrier:
34a2d313c51f4 (Christoph Hellwig 2010-11-23 14:38:21 +0100 194) set_bit(HFSPLUS_SB_NOBARRIER, &sbi->flags);
34a2d313c51f4 (Christoph Hellwig 2010-11-23 14:38:21 +0100 195) break;
b0b623c3b22d5 (Roman Zippel 2005-11-29 19:34:41 -0800 196) case opt_force:
84adede31267a (Christoph Hellwig 2010-10-01 05:45:20 +0200 197) set_bit(HFSPLUS_SB_FORCE, &sbi->flags);
b0b623c3b22d5 (Roman Zippel 2005-11-29 19:34:41 -0800 198) break;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 199) default:
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 200) return 0;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 201) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 202) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 203)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 204) done:
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 205) if (!sbi->nls) {
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 206) /* try utf8 first, as this is the old default behaviour */
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 207) sbi->nls = load_nls("utf8");
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 208) if (!sbi->nls)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 209) sbi->nls = load_nls_default();
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 210) if (!sbi->nls)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 211) return 0;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 212) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 213)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 214) return 1;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 215) }
717dd80e999cd (Roman Zippel 2005-09-06 15:18:48 -0700 216)
34c80b1d93e6e (Al Viro 2011-12-08 21:32:45 -0500 217) int hfsplus_show_options(struct seq_file *seq, struct dentry *root)
717dd80e999cd (Roman Zippel 2005-09-06 15:18:48 -0700 218) {
34c80b1d93e6e (Al Viro 2011-12-08 21:32:45 -0500 219) struct hfsplus_sb_info *sbi = HFSPLUS_SB(root->d_sb);
717dd80e999cd (Roman Zippel 2005-09-06 15:18:48 -0700 220)
717dd80e999cd (Roman Zippel 2005-09-06 15:18:48 -0700 221) if (sbi->creator != HFSPLUS_DEF_CR_TYPE)
a068acf2ee776 (Kees Cook 2015-09-04 15:44:57 -0700 222) seq_show_option_n(seq, "creator", (char *)&sbi->creator, 4);
717dd80e999cd (Roman Zippel 2005-09-06 15:18:48 -0700 223) if (sbi->type != HFSPLUS_DEF_CR_TYPE)
a068acf2ee776 (Kees Cook 2015-09-04 15:44:57 -0700 224) seq_show_option_n(seq, "type", (char *)&sbi->type, 4);
2753cc281c9a0 (Anton Salikhmetov 2010-12-16 18:08:38 +0200 225) seq_printf(seq, ",umask=%o,uid=%u,gid=%u", sbi->umask,
16525e3f146fb (Eric W. Biederman 2012-02-07 16:27:17 -0800 226) from_kuid_munged(&init_user_ns, sbi->uid),
16525e3f146fb (Eric W. Biederman 2012-02-07 16:27:17 -0800 227) from_kgid_munged(&init_user_ns, sbi->gid));
717dd80e999cd (Roman Zippel 2005-09-06 15:18:48 -0700 228) if (sbi->part >= 0)
717dd80e999cd (Roman Zippel 2005-09-06 15:18:48 -0700 229) seq_printf(seq, ",part=%u", sbi->part);
717dd80e999cd (Roman Zippel 2005-09-06 15:18:48 -0700 230) if (sbi->session >= 0)
717dd80e999cd (Roman Zippel 2005-09-06 15:18:48 -0700 231) seq_printf(seq, ",session=%u", sbi->session);
717dd80e999cd (Roman Zippel 2005-09-06 15:18:48 -0700 232) if (sbi->nls)
717dd80e999cd (Roman Zippel 2005-09-06 15:18:48 -0700 233) seq_printf(seq, ",nls=%s", sbi->nls->charset);
84adede31267a (Christoph Hellwig 2010-10-01 05:45:20 +0200 234) if (test_bit(HFSPLUS_SB_NODECOMPOSE, &sbi->flags))
d8983ca0aa86c (Fabian Frederick 2014-06-06 14:36:26 -0700 235) seq_puts(seq, ",nodecompose");
34a2d313c51f4 (Christoph Hellwig 2010-11-23 14:38:21 +0100 236) if (test_bit(HFSPLUS_SB_NOBARRIER, &sbi->flags))
d8983ca0aa86c (Fabian Frederick 2014-06-06 14:36:26 -0700 237) seq_puts(seq, ",nobarrier");
717dd80e999cd (Roman Zippel 2005-09-06 15:18:48 -0700 238) return 0;
717dd80e999cd (Roman Zippel 2005-09-06 15:18:48 -0700 239) }
VisionFive2 Linux kernel
StarFive Tech Linux Kernel for VisionFive (JH7110) boards (mirror)
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