* TODO: Licensing
*/
+#include <stdio.h>
#include <stdint.h>
#include <glib.h>
#include <string.h>
inode->mtime = now;
}
-/* Compute the HMAC keyed-hash function using the given hash algorithm, data,
- * and key. */
-void compute_hmac(GChecksumType algo,
- const guchar *data, gsize data_len,
- const guchar *key, gsize key_len,
- guint8 *buffer, gsize *digest_len)
-{
- int block_size;
-
- switch (algo) {
- case G_CHECKSUM_MD5:
- case G_CHECKSUM_SHA1:
- case G_CHECKSUM_SHA256:
- block_size = 64;
- break;
- default:
- g_error("Unknown hash algorithm for HMAC: %d\n", algo);
- }
-
- gsize digest_size = g_checksum_type_get_length(algo);
-
- guchar keybuf[block_size];
- memset(keybuf, 0, block_size);
- memcpy(keybuf, key, MIN(block_size, key_len));
- for (int i = 0; i < block_size; i++)
- keybuf[i] ^= 0x36;
-
- GChecksum *csum1 = g_checksum_new(algo);
- g_checksum_update(csum1, keybuf, block_size);
- g_checksum_update(csum1, data, data_len);
- guint8 digest[digest_size];
- g_checksum_get_digest(csum1, digest, &digest_size);
-
- memset(keybuf, 0, block_size);
- memcpy(keybuf, key, MIN(block_size, key_len));
- for (int i = 0; i < block_size; i++)
- keybuf[i] ^= 0x5c;
-
- GChecksum *csum2 = g_checksum_new(algo);
- g_checksum_update(csum2, keybuf, block_size);
- g_checksum_update(csum2, digest, digest_size);
-
- g_checksum_get_digest(csum2, buffer, digest_len);
-
- g_checksum_free(csum1);
- g_checksum_free(csum2);
-}
-
/* Unfortunately a glib hash table is only guaranteed to be able to store
* 32-bit keys if we use the key directly. If we want 64-bit inode numbers,
* we'll have to allocate memory to store the 64-bit inumber, and use a pointer
g_hash_table_insert(fs->inodes, &inode->inum, inode);
g_mutex_unlock(fs->lock);
}
+
+/* Synchronize an inode to stable storage. */
+void bluesky_inode_flush(BlueSkyFS *fs, BlueSkyInode *inode)
+{
+ GString *buf = g_string_new("");
+ bluesky_serialize_inode(buf, inode);
+
+ gsize len = buf->len;
+ BlueSkyRCStr *data = bluesky_string_new(g_string_free(buf, FALSE), len);
+
+ char key[64];
+ sprintf(key, "inode-%016llx", inode->inum);
+
+ bluesky_store_put(fs->store, key, data);
+}