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authorRichard Weinberger <richard@nod.at>2018-10-18 16:36:46 +0200
committerDavid Oberhollenzer <david.oberhollenzer@sigma-star.at>2018-11-01 12:38:15 +0100
commita1bd316e23e0098e44829b0e238ee5408996dd75 (patch)
tree3a5613af1f392f37dfb645171f2fca2d83222f28 /ubifs-utils/mkfs.ubifs/mkfs.ubifs.c
parentcc6034721a6990f3bc51921c12be907743af9545 (diff)
mkfs.ubifs: Implement fscrypto context store as xattr
Signed-off-by: Richard Weinberger <richard@nod.at> Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
Diffstat (limited to 'ubifs-utils/mkfs.ubifs/mkfs.ubifs.c')
-rw-r--r--ubifs-utils/mkfs.ubifs/mkfs.ubifs.c53
1 files changed, 34 insertions, 19 deletions
diff --git a/ubifs-utils/mkfs.ubifs/mkfs.ubifs.c b/ubifs-utils/mkfs.ubifs/mkfs.ubifs.c
index 349f68a..e391cda 100644
--- a/ubifs-utils/mkfs.ubifs/mkfs.ubifs.c
+++ b/ubifs-utils/mkfs.ubifs/mkfs.ubifs.c
@@ -1156,36 +1156,45 @@ static int add_node(union ubifs_key *key, char *name, void *node, int len)
return 0;
}
-static int add_xattr(struct stat *st, ino_t inum, const void *data,
- unsigned int data_len, struct qstr *nm)
+static int add_xattr(struct ubifs_ino_node *host_ino, struct stat *st, ino_t inum,
+ char *name, const void *data, unsigned int data_len)
{
struct ubifs_ino_node *ino;
struct ubifs_dent_node *xent;
+ struct qstr nm;
union ubifs_key xkey, nkey;
int len, ret;
- xent = xzalloc(sizeof(*xent) + nm->len + 1);
+ nm.name = name;
+ nm.len = strlen(name);
+
+ host_ino->xattr_cnt++;
+ host_ino->xattr_size += CALC_DENT_SIZE(nm.len);
+ host_ino->xattr_size += CALC_XATTR_BYTES(data_len);
+ host_ino->xattr_names += nm.len;
+
+ xent = xzalloc(sizeof(*xent) + nm.len + 1);
ino = xzalloc(sizeof(*ino) + data_len);
- xent_key_init(c, &xkey, inum, nm);
+ xent_key_init(c, &xkey, inum, &nm);
xent->ch.node_type = UBIFS_XENT_NODE;
key_write(&xkey, &xent->key);
- len = UBIFS_XENT_NODE_SZ + nm->len + 1;
+ len = UBIFS_XENT_NODE_SZ + nm.len + 1;
xent->ch.len = len;
xent->padding1 = 0;
xent->type = UBIFS_ITYPE_DIR;
- xent->nlen = cpu_to_le16(nm->len);
+ xent->nlen = cpu_to_le16(nm.len);
- memcpy(xent->name, nm->name, nm->len + 1);
+ memcpy(xent->name, nm.name, nm.len + 1);
inum = ++c->highest_inum;
creat_sqnum = ++c->max_sqnum;
xent->inum = cpu_to_le64(inum);
- ret = add_node(&xkey, nm->name, xent, len);
+ ret = add_node(&xkey, nm.name, xent, len);
if (ret)
goto out;
@@ -1217,7 +1226,7 @@ static int add_xattr(struct stat *st, ino_t inum, const void *data,
if (data_len)
memcpy(&ino->data, data, data_len);
- ret = add_node(&nkey, nm->name, ino, UBIFS_INO_NODE_SZ + data_len) ;
+ ret = add_node(&nkey, nm.name, ino, UBIFS_INO_NODE_SZ + data_len) ;
out:
free(xent);
@@ -1270,7 +1279,6 @@ static int inode_add_xattr(struct ubifs_ino_node *host_ino,
const char *path_name, struct stat *st, ino_t inum)
{
int ret;
- struct qstr nm;
void *buf = NULL;
ssize_t len;
ssize_t pos = 0;
@@ -1327,15 +1335,7 @@ static int inode_add_xattr(struct ubifs_ino_node *host_ino,
continue;
}
- nm.name = name;
- nm.len = strlen(name);
-
- host_ino->xattr_cnt++;
- host_ino->xattr_size += CALC_DENT_SIZE(nm.len);
- host_ino->xattr_size += CALC_XATTR_BYTES(attrsize);
- host_ino->xattr_names += nm.len;
-
- ret = add_xattr(st, inum, attrbuf, attrsize, &nm);
+ ret = add_xattr(host_ino, st, inum, name, attrbuf, attrsize);
if (ret < 0)
goto out_free;
}
@@ -1415,6 +1415,15 @@ static inline int inode_add_selinux_xattr(struct ubifs_ino_node *host_ino,
}
#endif
+static int set_fscrypt_context(struct ubifs_ino_node *host_ino, ino_t inum,
+ struct stat *host_st,
+ struct fscrypt_context *fctx)
+{
+ return add_xattr(host_ino, host_st, inum,
+ UBIFS_XATTR_NAME_ENCRYPTION_CONTEXT,
+ fctx, sizeof(*fctx));
+}
+
/**
* add_inode - write an inode.
* @st: stat information of source inode
@@ -1484,6 +1493,12 @@ static int add_inode(struct stat *st, ino_t inum, void *data,
return ret;
}
+ if (fctx) {
+ ret = set_fscrypt_context(ino, inum, st, fctx);
+ if (ret < 0)
+ return ret;
+ }
+
return add_node(&key, NULL, ino, len);
}