Fix some strings, fix sb_offset.
authorMilan Broz <gmazyland@gmail.com>
Thu, 7 Jun 2012 12:51:42 +0000 (14:51 +0200)
committerMilan Broz <gmazyland@gmail.com>
Thu, 7 Jun 2012 12:51:42 +0000 (14:51 +0200)
lib/verity/verity.c
lib/verity/verity.h
lib/verity/verity_hash.c
src/veritysetup.c

index 0dd268f..1bbd8d5 100644 (file)
 /* Read verity superblock from disk */
 int VERITY_read_sb(struct crypt_device *cd,
                   const char *device,
-                  size_t sb_offset,
+                  uint64_t sb_offset,
                   struct crypt_params_verity *params)
 {
        struct verity_sb sb = {};
        ssize_t hdr_size = sizeof(struct verity_sb);
        int devfd = 0;
-       long long sb_data_blocks;
+       uint64_t sb_data_blocks;
 
-       log_dbg("Reading VERITY header of size %d on device %s, offset %u.",
-               sizeof(struct verity_sb), device, (unsigned)sb_offset);
+       log_dbg("Reading VERITY header of size %u on device %s, offset %" PRIu64 ".",
+               sizeof(struct verity_sb), device, sb_offset);
 
        devfd = open(device ,O_RDONLY | O_DIRECT);
        if(devfd == -1) {
@@ -75,22 +75,19 @@ int VERITY_read_sb(struct crypt_device *cd,
                return -EINVAL;
        }
 
-       sb_data_blocks = ((unsigned long long)ntohl(sb.data_blocks_hi) << 31 << 1) |
+       sb_data_blocks = ((uint64_t)ntohl(sb.data_blocks_hi) << 31 << 1) |
                                ntohl(sb.data_blocks_lo);
-       if (sb_data_blocks < 0 ||
-           (off_t)sb_data_blocks < 0 ||
-           (off_t)sb_data_blocks != sb_data_blocks) {
-               log_err(cd, _("VERITY header data block size mismatch.\n"));
-               return -EINVAL;
-       }
 
-       // FIXME alloc error
        params->hash_name = strdup((const char*)sb.algorithm);
+       if (!params->hash_name)
+               return -ENOMEM;
        params->data_block_size = 1 << sb.data_block_bits;
        params->hash_block_size = 1 << sb.hash_block_bits;
        params->data_size = sb_data_blocks;
        params->salt_size = ntohs(sb.salt_size);
        params->salt = malloc(params->salt_size);
+       if (!params->salt)
+               return -ENOMEM;
        memcpy(CONST_CAST(char*)params->salt, sb.salt, params->salt_size);
        params->hash_area_offset = sb_offset;
        params->version = sb.version;
@@ -101,15 +98,15 @@ int VERITY_read_sb(struct crypt_device *cd,
 /* Write verity superblock to disk */
 int VERITY_write_sb(struct crypt_device *cd,
                   const char *device,
-                  size_t sb_offset,
+                  uint64_t sb_offset,
                   struct crypt_params_verity *params)
 {
        struct verity_sb sb = {};
        ssize_t hdr_size = sizeof(struct verity_sb);
        int r, devfd = 0;
 
-       log_dbg("Updating VERITY header of size %d on device %s, offset %u.",
-               sizeof(struct verity_sb), device, (unsigned)sb_offset);
+       log_dbg("Updating VERITY header of size %u on device %s, offset %" PRIu64 ".",
+               sizeof(struct verity_sb), device, sb_offset);
 
        devfd = open(device, O_RDWR | O_DIRECT);
        if(devfd == -1) {
index 63ecfb9..a223490 100644 (file)
@@ -48,12 +48,12 @@ struct verity_sb {
 
 int VERITY_read_sb(struct crypt_device *cd,
                   const char *device,
-                  size_t sb_offset,
+                  uint64_t sb_offset,
                   struct crypt_params_verity *params);
 
 int VERITY_write_sb(struct crypt_device *cd,
                   const char *device,
-                  size_t sb_offset,
+                  uint64_t sb_offset,
                   struct crypt_params_verity *params);
 
 int VERITY_activate(struct crypt_device *cd,
index 0b96cff..39086b7 100644 (file)
@@ -51,7 +51,7 @@ static int verify_zero(struct crypt_device *cd, FILE *wr, size_t bytes)
                return -EIO;
        for (i = 0; i < bytes; i++)
                if (block[i]) {
-                       log_err(cd, "spare area is not zeroed at position %" PRIu64 "\n",
+                       log_err(cd, _("Spare area is not zeroed at position %" PRIu64 ".\n"),
                                ftello(wr) - bytes);
                        return -EPERM;
                }
@@ -129,7 +129,7 @@ static int create_or_verify(struct crypt_device *cd, FILE *rd, FILE *wr,
                                if (fread(read_digest, digest_size, 1, wr) != 1)
                                        return -EIO;
                                if (memcmp(read_digest, calculated_digest, digest_size)) {
-                                       log_err(cd, "verification failed at position %" PRIu64 "\n",
+                                       log_err(cd, _("Verification failed at position %" PRIu64 ".\n"),
                                                ftello(rd) - data_block_size);
                                        return -EPERM;
                                }
@@ -205,10 +205,8 @@ static int VERITY_create_or_verify_hash(struct crypt_device *cd,
 
        hash_per_block_bits = get_bits_down(hash_block_size / digest_size);
        hash_per_block = 1 << hash_per_block_bits;
-       if (!hash_per_block_bits) {
-               log_err(cd, "at least two hashes must fit in a hash file block\n");
+       if (!hash_per_block_bits)
                return -EINVAL;
-       }
 
        levels = 0;
        if (data_file_blocks) {
@@ -218,7 +216,7 @@ static int VERITY_create_or_verify_hash(struct crypt_device *cd,
        }
 
        if (levels > VERITY_MAX_LEVELS) {
-               log_err(cd, "too many tree levels\n");
+               log_err(cd, _("Too many tree levels for verity volume.\n"));
                return -EINVAL;
        }
 
@@ -231,7 +229,7 @@ static int VERITY_create_or_verify_hash(struct crypt_device *cd,
                if (hash_position + s < hash_position ||
                    (hash_position + s) < 0 ||
                    (hash_position + s) != hash_position + s) {
-                       log_err(cd, "hash device offset overflow\n");
+                       log_dbg("Hash device offset overflow.");
                        return -EINVAL;
                }
                hash_position += s;
@@ -239,14 +237,14 @@ static int VERITY_create_or_verify_hash(struct crypt_device *cd,
 
        data_file = fopen(data_device, "r");
        if (!data_file) {
-               log_err(cd, "Cannot open %s.\n", data_device);
+               log_err(cd, _("Cannot open device %s.\n"), data_device);
                r = -EIO;
                goto out;
        }
 
        hash_file = fopen(hash_device, verify ? "r" : "r+");
        if (!hash_file) {
-               log_err(cd, "Cannot open %s.\n", hash_device);
+               log_err(cd, _("Cannot open device %s.\n"), hash_device);
                r = -EIO;
                goto out;
        }
@@ -292,19 +290,19 @@ static int VERITY_create_or_verify_hash(struct crypt_device *cd,
                                            data_file_blocks, version, hash_name, verify,
                                            calculated_digest, digest_size, salt, salt_size);
 
-       if (r) {
-               log_err(cd, "Hash of data area verification failed.\n");
+       if (r == -EPERM) {
+               log_err(cd, _("Verification of data area failed.\n"));
                goto out;
-       } else
-               log_dbg("Hash of data area successfully verified.");
+       } else if (!r)
+               log_dbg("Verification of data area succeeded.");
 
        /* root hash verification */
        if (verify) {
                r = memcmp(root_hash, calculated_digest, digest_size) ? -EPERM : 0;
                if (r)
-                       log_err(cd, "Root hash verification failed.\n");
+                       log_err(cd, _("Verification of root hash failed.\n"));
                else
-                       log_dbg("Root hash successfully verified.");
+                       log_dbg("Verification of root hash succeeded.");
        } else {
                fsync(fileno(hash_file));
                memcpy(root_hash, calculated_digest, digest_size);
@@ -325,7 +323,7 @@ int VERITY_verify(struct crypt_device *cd,
                  const char *root_hash,
                  size_t root_hash_size)
 {
-       int r = VERITY_create_or_verify_hash(cd, 1,
+       return VERITY_create_or_verify_hash(cd, 1,
                verity_hdr->version,
                verity_hdr->hash_name,
                hash_device,
@@ -338,13 +336,9 @@ int VERITY_verify(struct crypt_device *cd,
                root_hash_size,
                verity_hdr->salt,
                verity_hdr->salt_size);
-
-       if (r == -EPERM)
-               log_err(cd, "Userspace hash verification failed.\n");
-
-       return r;
 }
 
+/* Create verity hash */
 int VERITY_create(struct crypt_device *cd,
                  struct crypt_params_verity *verity_hdr,
                  const char *data_device,
index 3a0f07a..2ad27c4 100644 (file)
 
 /* TODO:
  * - init_by_name()
- * - check translations
  * - support device without superblock
  * - audit alloc errors / error path
  * - change command names (cryptsetup style)
  * - extend superblock (UUID)
  * - warn if block_size > PAGE_SIZE
+ * - configure.in/config.h defaults
  */
 
 #include <stdio.h>