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authorRichard Weinberger <richard@nod.at>2018-10-18 16:37:16 +0200
committerDavid Oberhollenzer <david.oberhollenzer@sigma-star.at>2018-11-01 12:42:31 +0100
commitcc4c5e295f5467edf91bb355e3cd525b3279be31 (patch)
tree4fcc9ef9fc211fdcdb8f04c00667f9143cf1948d /ubifs-utils/mkfs.ubifs/mkfs.ubifs.c
parent13eef731cf3911e5a60891a236d69ce4802e5326 (diff)
mkfs.ubifs: Enable support for building without crypto
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.c56
1 files changed, 51 insertions, 5 deletions
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;