diff mbox series

[v2] hfsplus: Fix bug causing custom uid and gid being unable to be assigned with mount

Message ID C0264BF5-059C-45CF-B8DA-3A3BD2C803A2@live.com
State New
Headers
Series [v2] hfsplus: Fix bug causing custom uid and gid being unable to be assigned with mount |

Commit Message

Aditya Garg Dec. 7, 2022, 3:05 a.m. UTC 
  From: Aditya Garg <gargaditya08@live.com>

Despite specifying UID and GID in mount command, the specified UID and GID
were not being assigned. This patch fixes this issue.

Cc: stable@vger.kernel.org
Signed-off-by: Aditya Garg <gargaditya08@live.com>
---
 fs/hfsplus/hfsplus_fs.h | 2 ++
 fs/hfsplus/inode.c      | 4 ++--
 fs/hfsplus/options.c    | 4 ++++
 3 files changed, 8 insertions(+), 2 deletions(-)

Comments

Viacheslav Dubeyko Dec. 7, 2022, 8:17 p.m. UTC | #1 
> On Dec 6, 2022, at 7:05 PM, Aditya Garg <gargaditya08@live.com> wrote:
> 
> From: Aditya Garg <gargaditya08@live.com>
> 
> Despite specifying UID and GID in mount command, the specified UID and GID
> were not being assigned. This patch fixes this issue.
> 
> Cc: stable@vger.kernel.org
> Signed-off-by: Aditya Garg <gargaditya08@live.com>
> ---
> fs/hfsplus/hfsplus_fs.h | 2 ++
> fs/hfsplus/inode.c      | 4 ++--
> fs/hfsplus/options.c    | 4 ++++
> 3 files changed, 8 insertions(+), 2 deletions(-)
> 
> diff --git a/fs/hfsplus/hfsplus_fs.h b/fs/hfsplus/hfsplus_fs.h
> index a5db2e3b2..6aa919e59 100644
> --- a/fs/hfsplus/hfsplus_fs.h
> +++ b/fs/hfsplus/hfsplus_fs.h
> @@ -198,6 +198,8 @@ struct hfsplus_sb_info {
> #define HFSPLUS_SB_HFSX		3
> #define HFSPLUS_SB_CASEFOLD	4
> #define HFSPLUS_SB_NOBARRIER	5
> +#define HFSPLUS_SB_UID		6
> +#define HFSPLUS_SB_GID		7
> 
> static inline struct hfsplus_sb_info *HFSPLUS_SB(struct super_block *sb)
> {
> diff --git a/fs/hfsplus/inode.c b/fs/hfsplus/inode.c
> index aeab83ed1..b675581aa 100644
> --- a/fs/hfsplus/inode.c
> +++ b/fs/hfsplus/inode.c
> @@ -192,11 +192,11 @@ static void hfsplus_get_perms(struct inode *inode,
> 	mode = be16_to_cpu(perms->mode);
> 
> 	i_uid_write(inode, be32_to_cpu(perms->owner));
> -	if (!i_uid_read(inode) && !mode)
> +	if ((test_bit(HFSPLUS_SB_UID, &sbi->flags)) || (!i_uid_read(inode) && !mode))
> 		inode->i_uid = sbi->uid;
> 
> 	i_gid_write(inode, be32_to_cpu(perms->group));
> -	if (!i_gid_read(inode) && !mode)
> +	if ((test_bit(HFSPLUS_SB_GID, &sbi->flags)) || (!i_gid_read(inode) && !mode))
> 		inode->i_gid = sbi->gid;
> 
> 	if (dir) {
> diff --git a/fs/hfsplus/options.c b/fs/hfsplus/options.c
> index 047e05c57..c94a58762 100644
> --- a/fs/hfsplus/options.c
> +++ b/fs/hfsplus/options.c
> @@ -140,6 +140,8 @@ int hfsplus_parse_options(char *input, struct hfsplus_sb_info *sbi)
> 			if (!uid_valid(sbi->uid)) {
> 				pr_err("invalid uid specified\n");
> 				return 0;
> +			} else {
> +				set_bit(HFSPLUS_SB_UID, &sbi->flags);
> 			}
> 			break;
> 		case opt_gid:
> @@ -151,6 +153,8 @@ int hfsplus_parse_options(char *input, struct hfsplus_sb_info *sbi)
> 			if (!gid_valid(sbi->gid)) {
> 				pr_err("invalid gid specified\n");
> 				return 0;
> +			} else {
> +				set_bit(HFSPLUS_SB_GID, &sbi->flags);
> 			}
> 			break;
> 		case opt_part:
> -- 
> 2.38.1
> 

Looks good.

Reviewed-by: Viacheslav Dubeyko <slava@dubeyko.com>

Thanks,
Slava.
diff mbox series

Patch

diff --git a/fs/hfsplus/hfsplus_fs.h b/fs/hfsplus/hfsplus_fs.h
index a5db2e3b2..6aa919e59 100644
--- a/fs/hfsplus/hfsplus_fs.h
+++ b/fs/hfsplus/hfsplus_fs.h
@@ -198,6 +198,8 @@  struct hfsplus_sb_info {
 #define HFSPLUS_SB_HFSX		3
 #define HFSPLUS_SB_CASEFOLD	4
 #define HFSPLUS_SB_NOBARRIER	5
+#define HFSPLUS_SB_UID		6
+#define HFSPLUS_SB_GID		7
 
 static inline struct hfsplus_sb_info *HFSPLUS_SB(struct super_block *sb)
 {
diff --git a/fs/hfsplus/inode.c b/fs/hfsplus/inode.c
index aeab83ed1..b675581aa 100644
--- a/fs/hfsplus/inode.c
+++ b/fs/hfsplus/inode.c
@@ -192,11 +192,11 @@  static void hfsplus_get_perms(struct inode *inode,
 	mode = be16_to_cpu(perms->mode);
 
 	i_uid_write(inode, be32_to_cpu(perms->owner));
-	if (!i_uid_read(inode) && !mode)
+	if ((test_bit(HFSPLUS_SB_UID, &sbi->flags)) || (!i_uid_read(inode) && !mode))
 		inode->i_uid = sbi->uid;
 
 	i_gid_write(inode, be32_to_cpu(perms->group));
-	if (!i_gid_read(inode) && !mode)
+	if ((test_bit(HFSPLUS_SB_GID, &sbi->flags)) || (!i_gid_read(inode) && !mode))
 		inode->i_gid = sbi->gid;
 
 	if (dir) {
diff --git a/fs/hfsplus/options.c b/fs/hfsplus/options.c
index 047e05c57..c94a58762 100644
--- a/fs/hfsplus/options.c
+++ b/fs/hfsplus/options.c
@@ -140,6 +140,8 @@  int hfsplus_parse_options(char *input, struct hfsplus_sb_info *sbi)
 			if (!uid_valid(sbi->uid)) {
 				pr_err("invalid uid specified\n");
 				return 0;
+			} else {
+				set_bit(HFSPLUS_SB_UID, &sbi->flags);
 			}
 			break;
 		case opt_gid:
@@ -151,6 +153,8 @@  int hfsplus_parse_options(char *input, struct hfsplus_sb_info *sbi)
 			if (!gid_valid(sbi->gid)) {
 				pr_err("invalid gid specified\n");
 				return 0;
+			} else {
+				set_bit(HFSPLUS_SB_GID, &sbi->flags);
 			}
 			break;
 		case opt_part: