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-rw-r--r--ubifs-utils/mkfs.ubifs/crypto.h11
-rw-r--r--ubifs-utils/mkfs.ubifs/fscrypt.h65
-rw-r--r--ubifs-utils/mkfs.ubifs/mkfs.ubifs.c56
3 files changed, 113 insertions, 19 deletions
diff --git a/ubifs-utils/mkfs.ubifs/crypto.h b/ubifs-utils/mkfs.ubifs/crypto.h
index f275839..b6ffad1 100644
--- a/ubifs-utils/mkfs.ubifs/crypto.h
+++ b/ubifs-utils/mkfs.ubifs/crypto.h
@@ -41,19 +41,18 @@ struct cipher {
unsigned int fscrypt_fname_mode;
};
-
+#ifdef WITH_CRYPTO
int crypto_init(void);
-
void crypto_cleanup(void);
-
ssize_t derive_key_aes(const void *deriving_key, const void *source_key,
size_t source_key_len, void *derived_key);
-
int derive_key_descriptor(const void *source_key, void *descriptor);
-
struct cipher *get_cipher(const char *name);
-
void list_ciphers(FILE *fp);
+#else
+static inline int crypto_init(void) { return 0;}
+static inline void crypto_cleanup(void) {}
+#endif /* WITH_CRYPTO */
#endif /* UBIFS_CRYPTO_H */
diff --git a/ubifs-utils/mkfs.ubifs/fscrypt.h b/ubifs-utils/mkfs.ubifs/fscrypt.h
index e3cfee5..3b717b4 100644
--- a/ubifs-utils/mkfs.ubifs/fscrypt.h
+++ b/ubifs-utils/mkfs.ubifs/fscrypt.h
@@ -97,27 +97,76 @@ struct fscrypt_symlink_data {
#define FS_IV_SIZE 16
#endif
+#ifdef WITH_CRYPTO
unsigned char *calc_fscrypt_subkey(struct fscrypt_context *fctx);
-
struct fscrypt_context *inherit_fscrypt_context(struct fscrypt_context *fctx);
-
void free_fscrypt_context(struct fscrypt_context *fctx);
-
void print_fscrypt_master_key_descriptor(struct fscrypt_context *fctx);
-
unsigned int fscrypt_fname_encrypted_size(struct fscrypt_context *fctx,
unsigned int ilen);
-
int encrypt_path(void **outbuf, void *data, unsigned int data_len,
unsigned int max_namelen, struct fscrypt_context *fctx);
-
int encrypt_data_node(struct fscrypt_context *fctx, unsigned int block_no,
struct ubifs_data_node *dn, size_t length);
-
struct fscrypt_context *init_fscrypt_context(const char *cipher_name,
unsigned int flags,
const char *key_file,
const char *key_descriptor);
-
+#else
+static inline struct fscrypt_context *init_fscrypt_context(
+ const char *cipher_name,
+ unsigned int flags,
+ const char *key_file,
+ const char *key_descriptor)
+{
+ (void)cipher_name;
+ (void)flags;
+ (void)key_file;
+ (void)key_descriptor;
+
+ assert(0);
+ return NULL;
+}
+
+static inline void free_fscrypt_context(struct fscrypt_context *fctx)
+{
+ (void)fctx;
+
+ assert(0);
+}
+
+static inline int encrypt_path(void **outbuf, void *data, unsigned int data_len,
+ unsigned int max_namelen, struct fscrypt_context *fctx)
+{
+ (void)outbuf;
+ (void)data;
+ (void)data_len;
+ (void)max_namelen;
+ (void)fctx;
+
+ assert(0);
+ return -1;
+}
+
+static inline int encrypt_data_node(struct fscrypt_context *fctx, unsigned int block_no,
+ struct ubifs_data_node *dn, size_t length)
+{
+ (void)fctx;
+ (void)block_no;
+ (void)dn;
+ (void)length;
+
+ assert(0);
+ return -1;
+}
+
+static inline struct fscrypt_context *inherit_fscrypt_context(struct fscrypt_context *fctx)
+{
+ (void)fctx;
+
+ assert(0);
+ return NULL;
+}
+#endif /* WITH_CRYPTO */
#endif /* FSCRYPT_H */
diff --git a/ubifs-utils/mkfs.ubifs/mkfs.ubifs.c b/ubifs-utils/mkfs.ubifs/mkfs.ubifs.c
index e4204da..7073bf0 100644
--- a/ubifs-utils/mkfs.ubifs/mkfs.ubifs.c
+++ b/ubifs-utils/mkfs.ubifs/mkfs.ubifs.c
@@ -508,9 +508,12 @@ static int get_options(int argc, char**argv)
{
int opt, i, fscrypt_flags = FS_POLICY_FLAGS_PAD_4;
const char *key_file = NULL, *key_desc = NULL;
- const char *tbl_file = NULL, *cipher_name = "AES-128-CBC";
+ const char *tbl_file = NULL;
struct stat st;
char *endp;
+#ifdef WITH_CRYPTO
+ const char *cipher_name;
+#endif
c->fanout = 8;
c->orph_lebs = 1;
@@ -587,8 +590,10 @@ static int get_options(int argc, char**argv)
exit(EXIT_SUCCESS);
case '?':
printf("%s", helptext);
+#ifdef WITH_CRYPTO
printf("\n\nSupported ciphers:\n");
list_ciphers(stdout);
+#endif
exit(-1);
case 'v':
verbose = 1;
@@ -729,7 +734,11 @@ static int get_options(int argc, char**argv)
break;
}
case 'C':
+#ifdef WITH_CRYPTO
cipher_name = optarg;
+#else
+ return err_msg("mkfs.ubifs was built without crypto support.");
+#endif
break;
}
}
@@ -748,20 +757,26 @@ static int get_options(int argc, char**argv)
if (c->max_leb_cnt == -1)
c->max_leb_cnt = c->vi.rsvd_lebs;
}
-
if (key_file || key_desc) {
+#ifdef WITH_CRYPTO
if (!key_file)
return err_msg("no key file specified");
c->double_hash = 1;
c->encrypted = 1;
+ if (cipher_name == NULL)
+ cipher_name = "AES-128-CBC";
+
root_fctx = init_fscrypt_context(cipher_name, fscrypt_flags,
key_file, key_desc);
if (!root_fctx)
return -1;
print_fscrypt_master_key_descriptor(root_fctx);
+#else
+ return err_msg("mkfs.ubifs was built without crypto support.");
+#endif
}
if (c->min_io_size == -1)
@@ -1385,6 +1400,7 @@ static inline int inode_add_selinux_xattr(struct ubifs_ino_node *host_ino,
}
#endif
+#ifdef WITH_CRYPTO
static int set_fscrypt_context(struct ubifs_ino_node *host_ino, ino_t inum,
struct stat *host_st,
struct fscrypt_context *fctx)
@@ -1421,6 +1437,31 @@ static int encrypt_symlink(void *dst, void *data, unsigned int data_len,
free(sd);
return link_disk_len;
}
+#else
+static int set_fscrypt_context(struct ubifs_ino_node *host_ino, ino_t inum,
+ struct stat *host_st,
+ struct fscrypt_context *fctx)
+{
+ (void)host_ino;
+ (void)inum;
+ (void)host_st;
+ (void)fctx;
+
+ assert(0);
+ return -1;
+}
+static int encrypt_symlink(void *dst, void *data, unsigned int data_len,
+ struct fscrypt_context *fctx)
+{
+ (void)dst;
+ (void)data;
+ (void)data_len;
+ (void)fctx;
+
+ assert(0);
+ return -1;
+}
+#endif
/**
* add_inode - write an inode.
@@ -1582,9 +1623,11 @@ static int add_symlink_inode(const char *path_name, struct stat *st, ino_t inum,
static void set_dent_cookie(struct ubifs_dent_node *dent)
{
+#ifdef WITH_CRYPTO
if (c->double_hash)
RAND_bytes((void *)&dent->cookie, sizeof(dent->cookie));
else
+#endif
dent->cookie = 0;
}
@@ -1981,7 +2024,8 @@ static int add_directory(const char *dir_name, ino_t dir_inum, struct stat *st,
inum = ++c->highest_inum;
- new_fctx = inherit_fscrypt_context(fctx);
+ if (fctx)
+ new_fctx = inherit_fscrypt_context(fctx);
if (S_ISDIR(dent_st.st_mode)) {
err = add_directory(name, inum, &dent_st, 1, new_fctx);
@@ -2006,7 +2050,8 @@ static int add_directory(const char *dir_name, ino_t dir_inum, struct stat *st,
size += ALIGN(UBIFS_DENT_NODE_SZ + strlen(entry->d_name) + 1,
8);
- free_fscrypt_context(new_fctx);
+ if (new_fctx)
+ free_fscrypt_context(new_fctx);
}
/*
@@ -2068,7 +2113,8 @@ static int add_directory(const char *dir_name, ino_t dir_inum, struct stat *st,
size += ALIGN(UBIFS_DENT_NODE_SZ + strlen(nh_elt->name) + 1, 8);
nh_elt = next_name_htbl_element(ph_elt, &itr);
- free_fscrypt_context(new_fctx);
+ if (new_fctx)
+ free_fscrypt_context(new_fctx);
}
creat_sqnum = dir_creat_sqnum;
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-11 14:15:58 +0000