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-rw-r--r--fs/ecryptfs/crypto.c9
-rw-r--r--fs/ecryptfs/ecryptfs_kernel.h3
-rw-r--r--fs/ecryptfs/mmap.c14
3 files changed, 22 insertions, 4 deletions
diff --git a/fs/ecryptfs/crypto.c b/fs/ecryptfs/crypto.c
index 4d9db0ed88ea..fad5bf6a6116 100644
--- a/fs/ecryptfs/crypto.c
+++ b/fs/ecryptfs/crypto.c
@@ -1107,9 +1107,9 @@ static void write_ecryptfs_marker(char *page_virt, size_t *written)
1107 (*written) = MAGIC_ECRYPTFS_MARKER_SIZE_BYTES; 1107 (*written) = MAGIC_ECRYPTFS_MARKER_SIZE_BYTES;
1108} 1108}
1109 1109
1110static void 1110void ecryptfs_write_crypt_stat_flags(char *page_virt,
1111write_ecryptfs_flags(char *page_virt, struct ecryptfs_crypt_stat *crypt_stat, 1111 struct ecryptfs_crypt_stat *crypt_stat,
1112 size_t *written) 1112 size_t *written)
1113{ 1113{
1114 u32 flags = 0; 1114 u32 flags = 0;
1115 int i; 1115 int i;
@@ -1290,7 +1290,8 @@ static int ecryptfs_write_headers_virt(char *page_virt, size_t max,
1290 offset = ECRYPTFS_FILE_SIZE_BYTES; 1290 offset = ECRYPTFS_FILE_SIZE_BYTES;
1291 write_ecryptfs_marker((page_virt + offset), &written); 1291 write_ecryptfs_marker((page_virt + offset), &written);
1292 offset += written; 1292 offset += written;
1293 write_ecryptfs_flags((page_virt + offset), crypt_stat, &written); 1293 ecryptfs_write_crypt_stat_flags((page_virt + offset), crypt_stat,
1294 &written);
1294 offset += written; 1295 offset += written;
1295 ecryptfs_write_header_metadata((page_virt + offset), crypt_stat, 1296 ecryptfs_write_header_metadata((page_virt + offset), crypt_stat,
1296 &written); 1297 &written);
diff --git a/fs/ecryptfs/ecryptfs_kernel.h b/fs/ecryptfs/ecryptfs_kernel.h
index d031efd7666b..bc7115403f38 100644
--- a/fs/ecryptfs/ecryptfs_kernel.h
+++ b/fs/ecryptfs/ecryptfs_kernel.h
@@ -659,6 +659,9 @@ int ecryptfs_decrypt_page(struct page *page);
659int ecryptfs_write_metadata(struct dentry *ecryptfs_dentry); 659int ecryptfs_write_metadata(struct dentry *ecryptfs_dentry);
660int ecryptfs_read_metadata(struct dentry *ecryptfs_dentry); 660int ecryptfs_read_metadata(struct dentry *ecryptfs_dentry);
661int ecryptfs_new_file_context(struct dentry *ecryptfs_dentry); 661int ecryptfs_new_file_context(struct dentry *ecryptfs_dentry);
662void ecryptfs_write_crypt_stat_flags(char *page_virt,
663 struct ecryptfs_crypt_stat *crypt_stat,
664 size_t *written);
662int ecryptfs_read_and_validate_header_region(char *data, 665int ecryptfs_read_and_validate_header_region(char *data,
663 struct inode *ecryptfs_inode); 666 struct inode *ecryptfs_inode);
664int ecryptfs_read_and_validate_xattr_region(char *page_virt, 667int ecryptfs_read_and_validate_xattr_region(char *page_virt,
diff --git a/fs/ecryptfs/mmap.c b/fs/ecryptfs/mmap.c
index 270f42ae7c0d..bea998a25afd 100644
--- a/fs/ecryptfs/mmap.c
+++ b/fs/ecryptfs/mmap.c
@@ -82,6 +82,19 @@ out:
82 return rc; 82 return rc;
83} 83}
84 84
85static void strip_xattr_flag(char *page_virt,
86 struct ecryptfs_crypt_stat *crypt_stat)
87{
88 if (crypt_stat->flags & ECRYPTFS_METADATA_IN_XATTR) {
89 size_t written;
90
91 crypt_stat->flags &= ~ECRYPTFS_METADATA_IN_XATTR;
92 ecryptfs_write_crypt_stat_flags(page_virt, crypt_stat,
93 &written);
94 crypt_stat->flags |= ECRYPTFS_METADATA_IN_XATTR;
95 }
96}
97
85/** 98/**
86 * Header Extent: 99 * Header Extent:
87 * Octets 0-7: Unencrypted file size (big-endian) 100 * Octets 0-7: Unencrypted file size (big-endian)
@@ -136,6 +149,7 @@ ecryptfs_copy_up_encrypted_with_header(struct page *page,
136 149
137 rc = ecryptfs_read_xattr_region( 150 rc = ecryptfs_read_xattr_region(
138 page_virt, page->mapping->host); 151 page_virt, page->mapping->host);
152 strip_xattr_flag(page_virt + 16, crypt_stat);
139 ecryptfs_write_header_metadata(page_virt + 20, 153 ecryptfs_write_header_metadata(page_virt + 20,
140 crypt_stat, 154 crypt_stat,
141 &written); 155 &written);