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Diffstat (limited to 'fs/hfsplus/options.c')
-rw-r--r--fs/hfsplus/options.c98
1 files changed, 74 insertions, 24 deletions
diff --git a/fs/hfsplus/options.c b/fs/hfsplus/options.c
index dc64fac0083..c90b72ee676 100644
--- a/fs/hfsplus/options.c
+++ b/fs/hfsplus/options.c
@@ -15,6 +15,7 @@
#include <linux/nls.h>
#include <linux/mount.h>
#include <linux/seq_file.h>
+#include <linux/slab.h>
#include "hfsplus_fs.h"
enum {
@@ -22,10 +23,11 @@ enum {
opt_umask, opt_uid, opt_gid,
opt_part, opt_session, opt_nls,
opt_nodecompose, opt_decompose,
+ opt_barrier, opt_nobarrier,
opt_force, opt_err
};
-static match_table_t tokens = {
+static const match_table_t tokens = {
{ opt_creator, "creator=%s" },
{ opt_type, "type=%s" },
{ opt_umask, "umask=%o" },
@@ -36,6 +38,8 @@ static match_table_t tokens = {
{ opt_nls, "nls=%s" },
{ opt_decompose, "decompose" },
{ opt_nodecompose, "nodecompose" },
+ { opt_barrier, "barrier" },
+ { opt_nobarrier, "nobarrier" },
{ opt_force, "force" },
{ opt_err, NULL }
};
@@ -48,9 +52,9 @@ void hfsplus_fill_defaults(struct hfsplus_sb_info *opts)
opts->creator = HFSPLUS_DEF_CR_TYPE;
opts->type = HFSPLUS_DEF_CR_TYPE;
- opts->umask = current->fs->umask;
- opts->uid = current->uid;
- opts->gid = current->gid;
+ opts->umask = current_umask();
+ opts->uid = current_uid();
+ opts->gid = current_gid();
opts->part = -1;
opts->session = -1;
}
@@ -64,6 +68,32 @@ static inline int match_fourchar(substring_t *arg, u32 *result)
return 0;
}
+int hfsplus_parse_options_remount(char *input, int *force)
+{
+ char *p;
+ substring_t args[MAX_OPT_ARGS];
+ int token;
+
+ if (!input)
+ return 1;
+
+ while ((p = strsep(&input, ",")) != NULL) {
+ if (!*p)
+ continue;
+
+ token = match_token(p, tokens, args);
+ switch (token) {
+ case opt_force:
+ *force = 1;
+ break;
+ default:
+ break;
+ }
+ }
+
+ return 1;
+}
+
/* Parse options from mount. Returns 0 on failure */
/* input is the options passed to mount() as a string */
int hfsplus_parse_options(char *input, struct hfsplus_sb_info *sbi)
@@ -83,71 +113,87 @@ int hfsplus_parse_options(char *input, struct hfsplus_sb_info *sbi)
switch (token) {
case opt_creator:
if (match_fourchar(&args[0], &sbi->creator)) {
- printk(KERN_ERR "hfs: creator requires a 4 character value\n");
+ pr_err("creator requires a 4 character value\n");
return 0;
}
break;
case opt_type:
if (match_fourchar(&args[0], &sbi->type)) {
- printk(KERN_ERR "hfs: type requires a 4 character value\n");
+ pr_err("type requires a 4 character value\n");
return 0;
}
break;
case opt_umask:
if (match_octal(&args[0], &tmp)) {
- printk(KERN_ERR "hfs: umask requires a value\n");
+ pr_err("umask requires a value\n");
return 0;
}
sbi->umask = (umode_t)tmp;
break;
case opt_uid:
if (match_int(&args[0], &tmp)) {
- printk(KERN_ERR "hfs: uid requires an argument\n");
+ pr_err("uid requires an argument\n");
+ return 0;
+ }
+ sbi->uid = make_kuid(current_user_ns(), (uid_t)tmp);
+ if (!uid_valid(sbi->uid)) {
+ pr_err("invalid uid specified\n");
return 0;
}
- sbi->uid = (uid_t)tmp;
break;
case opt_gid:
if (match_int(&args[0], &tmp)) {
- printk(KERN_ERR "hfs: gid requires an argument\n");
+ pr_err("gid requires an argument\n");
+ return 0;
+ }
+ sbi->gid = make_kgid(current_user_ns(), (gid_t)tmp);
+ if (!gid_valid(sbi->gid)) {
+ pr_err("invalid gid specified\n");
return 0;
}
- sbi->gid = (gid_t)tmp;
break;
case opt_part:
if (match_int(&args[0], &sbi->part)) {
- printk(KERN_ERR "hfs: part requires an argument\n");
+ pr_err("part requires an argument\n");
return 0;
}
break;
case opt_session:
if (match_int(&args[0], &sbi->session)) {
- printk(KERN_ERR "hfs: session requires an argument\n");
+ pr_err("session requires an argument\n");
return 0;
}
break;
case opt_nls:
if (sbi->nls) {
- printk(KERN_ERR "hfs: unable to change nls mapping\n");
+ pr_err("unable to change nls mapping\n");
return 0;
}
p = match_strdup(&args[0]);
- sbi->nls = load_nls(p);
+ if (p)
+ sbi->nls = load_nls(p);
if (!sbi->nls) {
- printk(KERN_ERR "hfs: unable to load nls mapping \"%s\"\n", p);
+ pr_err("unable to load nls mapping \"%s\"\n",
+ p);
kfree(p);
return 0;
}
kfree(p);
break;
case opt_decompose:
- sbi->flags &= ~HFSPLUS_SB_NODECOMPOSE;
+ clear_bit(HFSPLUS_SB_NODECOMPOSE, &sbi->flags);
break;
case opt_nodecompose:
- sbi->flags |= HFSPLUS_SB_NODECOMPOSE;
+ set_bit(HFSPLUS_SB_NODECOMPOSE, &sbi->flags);
+ break;
+ case opt_barrier:
+ clear_bit(HFSPLUS_SB_NOBARRIER, &sbi->flags);
+ break;
+ case opt_nobarrier:
+ set_bit(HFSPLUS_SB_NOBARRIER, &sbi->flags);
break;
case opt_force:
- sbi->flags |= HFSPLUS_SB_FORCE;
+ set_bit(HFSPLUS_SB_FORCE, &sbi->flags);
break;
default:
return 0;
@@ -167,22 +213,26 @@ done:
return 1;
}
-int hfsplus_show_options(struct seq_file *seq, struct vfsmount *mnt)
+int hfsplus_show_options(struct seq_file *seq, struct dentry *root)
{
- struct hfsplus_sb_info *sbi = &HFSPLUS_SB(mnt->mnt_sb);
+ struct hfsplus_sb_info *sbi = HFSPLUS_SB(root->d_sb);
if (sbi->creator != HFSPLUS_DEF_CR_TYPE)
seq_printf(seq, ",creator=%.4s", (char *)&sbi->creator);
if (sbi->type != HFSPLUS_DEF_CR_TYPE)
seq_printf(seq, ",type=%.4s", (char *)&sbi->type);
- seq_printf(seq, ",umask=%o,uid=%u,gid=%u", sbi->umask, sbi->uid, sbi->gid);
+ seq_printf(seq, ",umask=%o,uid=%u,gid=%u", sbi->umask,
+ from_kuid_munged(&init_user_ns, sbi->uid),
+ from_kgid_munged(&init_user_ns, sbi->gid));
if (sbi->part >= 0)
seq_printf(seq, ",part=%u", sbi->part);
if (sbi->session >= 0)
seq_printf(seq, ",session=%u", sbi->session);
if (sbi->nls)
seq_printf(seq, ",nls=%s", sbi->nls->charset);
- if (sbi->flags & HFSPLUS_SB_NODECOMPOSE)
- seq_printf(seq, ",nodecompose");
+ if (test_bit(HFSPLUS_SB_NODECOMPOSE, &sbi->flags))
+ seq_puts(seq, ",nodecompose");
+ if (test_bit(HFSPLUS_SB_NOBARRIER, &sbi->flags))
+ seq_puts(seq, ",nobarrier");
return 0;
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-10 07:22:10 +0000