mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-20 22:23:27 +00:00
156 lines
4.2 KiB
Diff
156 lines
4.2 KiB
Diff
--- a/fs/yaffs2/yaffs_vfs.c
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+++ b/fs/yaffs2/yaffs_vfs.c
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@@ -329,6 +329,33 @@ static int yaffs_readpage(struct file *f
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return ret;
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}
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+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 5, 0))
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+#define YCRED_FSUID() from_kuid(&init_user_ns, current_fsuid())
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+#define YCRED_FSGID() from_kgid(&init_user_ns, current_fsgid())
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+#else
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+#define YCRED_FSUID() YCRED(current)->fsuid
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+#define YCRED_FSGID() YCRED(current)->fsgid
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+
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+static inline uid_t i_uid_read(const struct inode *inode)
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+{
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+ return inode->i_uid;
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+}
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+
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+static inline gid_t i_gid_read(const struct inode *inode)
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+{
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+ return inode->i_gid;
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+}
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+
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+static inline void i_uid_write(struct inode *inode, uid_t uid)
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+{
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+ inode->i_uid = uid;
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+}
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+
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+static inline void i_gid_write(struct inode *inode, gid_t gid)
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+{
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+ inode->i_gid = gid;
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+}
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+#endif
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static void yaffs_set_super_dirty_val(struct yaffs_dev *dev, int val)
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{
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@@ -1225,9 +1252,9 @@ static int yaffs_mknod(struct inode *dir
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struct yaffs_obj *parent = yaffs_inode_to_obj(dir);
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int error = -ENOSPC;
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- uid_t uid = YCRED(current)->fsuid;
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+ uid_t uid = YCRED_FSUID();
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gid_t gid =
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- (dir->i_mode & S_ISGID) ? dir->i_gid : YCRED(current)->fsgid;
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+ (dir->i_mode & S_ISGID) ? i_gid_read(dir) : YCRED_FSGID();
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if ((dir->i_mode & S_ISGID) && S_ISDIR(mode))
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mode |= S_ISGID;
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@@ -1424,9 +1451,9 @@ static int yaffs_symlink(struct inode *d
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{
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struct yaffs_obj *obj;
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struct yaffs_dev *dev;
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- uid_t uid = YCRED(current)->fsuid;
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+ uid_t uid = YCRED_FSUID();
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gid_t gid =
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- (dir->i_mode & S_ISGID) ? dir->i_gid : YCRED(current)->fsgid;
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+ (dir->i_mode & S_ISGID) ? i_gid_read(dir) : YCRED_FSGID();
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yaffs_trace(YAFFS_TRACE_OS, "yaffs_symlink");
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@@ -1829,8 +1856,8 @@ static void yaffs_fill_inode_from_obj(st
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inode->i_ino = obj->obj_id;
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inode->i_mode = obj->yst_mode;
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- inode->i_uid = obj->yst_uid;
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- inode->i_gid = obj->yst_gid;
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+ i_uid_write(inode, obj->yst_uid);
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+ i_gid_write(inode, obj->yst_gid);
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#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19))
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inode->i_blksize = inode->i_sb->s_blocksize;
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#endif
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@@ -1856,7 +1883,7 @@ static void yaffs_fill_inode_from_obj(st
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yaffs_trace(YAFFS_TRACE_OS,
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"yaffs_fill_inode mode %x uid %d gid %d size %lld count %d",
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- inode->i_mode, inode->i_uid, inode->i_gid,
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+ inode->i_mode, i_uid_read(inode), i_gid_read(inode),
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inode->i_size, atomic_read(&inode->i_count));
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switch (obj->yst_mode & S_IFMT) {
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--- a/fs/yaffs2/yaffs_attribs.c
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+++ b/fs/yaffs2/yaffs_attribs.c
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@@ -14,6 +14,48 @@
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#include "yaffs_guts.h"
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#include "yaffs_attribs.h"
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+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 5, 0))
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+static inline uid_t ia_uid_read(const struct iattr *iattr)
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+{
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+ return from_kuid(&init_user_ns, iattr->ia_uid);
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+}
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+
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+static inline gid_t ia_gid_read(const struct iattr *iattr)
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+{
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+ return from_kgid(&init_user_ns, iattr->ia_gid);
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+}
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+
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+static inline void ia_uid_write(struct iattr *iattr, uid_t uid)
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+{
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+ iattr->ia_uid = make_kuid(&init_user_ns, uid);
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+}
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+
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+static inline void ia_gid_write(struct iattr *iattr, gid_t gid)
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+{
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+ iattr->ia_gid = make_kgid(&init_user_ns, gid);
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+}
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+#else
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+static inline uid_t ia_uid_read(const struct iattr *iattr)
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+{
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+ return iattr->ia_uid;
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+}
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+
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+static inline gid_t ia_gid_read(const struct iattr *inode)
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+{
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+ return iattr->ia_gid;
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+}
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+
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+static inline void ia_uid_write(struct iattr *iattr, uid_t uid)
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+{
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+ iattr->ia_uid = uid;
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+}
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+
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+static inline void ia_gid_write(struct iattr *iattr, gid_t gid)
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+{
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+ iattr->ia_gid = gid;
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+}
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+#endif
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+
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void yaffs_load_attribs(struct yaffs_obj *obj, struct yaffs_obj_hdr *oh)
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{
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obj->yst_uid = oh->yst_uid;
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@@ -77,9 +119,9 @@ int yaffs_set_attribs(struct yaffs_obj *
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if (valid & ATTR_MODE)
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obj->yst_mode = attr->ia_mode;
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if (valid & ATTR_UID)
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- obj->yst_uid = attr->ia_uid;
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+ obj->yst_uid = ia_uid_read(attr);
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if (valid & ATTR_GID)
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- obj->yst_gid = attr->ia_gid;
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+ obj->yst_gid = ia_gid_read(attr);
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if (valid & ATTR_ATIME)
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obj->yst_atime = Y_TIME_CONVERT(attr->ia_atime);
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@@ -103,9 +145,9 @@ int yaffs_get_attribs(struct yaffs_obj *
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attr->ia_mode = obj->yst_mode;
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valid |= ATTR_MODE;
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- attr->ia_uid = obj->yst_uid;
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+ ia_uid_write(attr, obj->yst_uid);
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valid |= ATTR_UID;
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- attr->ia_gid = obj->yst_gid;
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+ ia_gid_write(attr, obj->yst_gid);
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valid |= ATTR_GID;
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Y_TIME_CONVERT(attr->ia_atime) = obj->yst_atime;
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