-O okey=val: offset into key (useful for block device keys, such as USB sticks).

[tfcrypt.git] / tfcrypt.h

diff --git a/tfcrypt.h b/tfcrypt.h
index 9b1caf05180f13a047154cf306e1882bff599913..bf0d6d66e82886e4ee03e8ea3b160026d262f78d 100644 (file)
--- a/tfcrypt.h
+++ b/tfcrypt.h
@@ -29,6 +29,9 @@
 #ifndef _TFCRYPT_H
 #define _TFCRYPT_H
 
+#ifndef _DEFAULT_SOURCE
+#define _DEFAULT_SOURCE
+#endif
 #ifndef _BSD_SOURCE
 #define _BSD_SOURCE
 #endif
@@ -38,6 +41,9 @@
 #ifndef _LARGEFILE64_SOURCE
 #define _LARGEFILE64_SOURCE
 #endif
+#ifndef _FILE_OFFSET_BITS
+#define _FILE_OFFSET_BITS 64
+#endif
 
 #ifndef _TFCRYPT_VERSION
 #error Version number may help you to identify missing functionality.
@@ -72,18 +78,14 @@ typedef TF_BYTE_TYPE tfc_byte;
 typedef unsigned long long tfc_fsize;
 typedef unsigned long long tfc_useconds;
 
-#ifndef TFC_NR_TURNS
-#define TFC_NR_TURNS 262144
-#endif
-
-#ifndef TFC_CTR_MODE
-#define TFC_CTR_MODE TFC_MODE_XTS
-#endif
-
 #ifndef TFC_BLKSIZE
 #define TFC_BLKSIZE 65536
 #endif
 
+#ifndef TFC_MAX_SALT
+#define TFC_MAX_SALT (2048 + TF_KEY_SIZE)
+#endif
+
 #ifndef TFC_XTSBLOCKS
 #define TFC_XTSBLOCKS 32
 #endif
@@ -117,11 +119,14 @@ int xmhexdump(int to, const void *data, size_t szdata, int hgroup, int hexstr, i
 #define mhexdump(data, szdata, group, newline) xmhexdump(1, data, szdata, group, do_full_hexdump, newline)
 #define mehexdump(data, szdata, group, newline) xmhexdump(2, data, szdata, group, do_full_hexdump, newline)
 
-extern char *progname;
-extern int exitcode;
 extern size_t nr_turns;
 extern int ctr_mode;
 extern size_t macbits;
+extern size_t tfc_saltsz;
+extern tfc_byte tfc_salt[TFC_MAX_SALT];
+
+extern char *progname;
+extern int exitcode;
 extern tfc_byte key[TF_KEY_SIZE], ctr[TF_BLOCK_SIZE], xtskey[TF_KEY_SIZE], mackey[TF_FROM_BITS(TF_MAX_BITS)];
 extern struct skein sk;
 extern struct tfe_stream tfe;
@@ -133,12 +138,14 @@ extern tfc_fsize iseek_blocks, iseek, oseek, maxlen;
 extern tfc_fsize total_processed_src, total_processed_dst;
 extern tfc_fsize delta_processed;
 extern tfc_fsize genrandom_nr_bytes, genzero_nr_bytes;
+extern tfc_fsize rdpos;
+extern tfc_fsize maxkeylen, keyoffset;
 extern int sfd, kfd, dfd;
 extern struct stat s_stat;
 extern size_t blksize, xtsblocks;
 extern char pwdask[512], pwdagain[512];
 extern size_t lio, lrem, ldone, lblock;
-extern size_t maxkeylen, ctrsz;
+extern size_t ctrsz;
 extern struct sigaction sigact;
 extern size_t sksum_turns;
 extern int do_edcrypt, do_stop, quiet, error_action;
@@ -148,12 +155,15 @@ extern tfc_yesno catch_all_errors, password, overwrite_source, do_fsync, do_pad,
 extern tfc_yesno do_preserve_time, do_stats_in_gibs, do_statline_dynamic, do_less_stats;
 extern tfc_yesno no_repeat, do_full_hexdump, verbose, statline_was_shown;
 extern char *srcfname, *dstfname, *do_mac_file, *counter_file, *sksum_hashlist_file;
-extern char *genkeyf, *mackeyf, *tweakf;
+extern char *saltf, *genkeyf, *mackeyf, *tweakf;
 extern char *pw_prompt, *mac_pw_prompt;
 extern tfc_useconds status_timer, bench_timer;
 extern tfc_useconds current_time, delta_time;
 extern struct getpasswd_state getps;
 
+size_t xread(int fd, void *data, size_t szdata);
+size_t xwrite(int fd, const void *data, size_t szdata);
+
 void xerror(tfc_yesno noexit, tfc_yesno noerrno, tfc_yesno nostats, const char *fmt, ...);
 void xexit(int status);
 void usage(void);
@@ -175,6 +185,7 @@ void xclose(int fd);
 const char *tfc_modename(int mode);
 void tfc_getcurtime(tfc_useconds *tx);
 tfc_fsize tfc_fdsize(int fd);
+tfc_fsize tfc_fdgetpos(int fd);
 tfc_fsize tfc_fnamesize(char *fname, tfc_yesno noexit);
 tfc_fsize tfc_modifysize(tfc_fsize szmodify, const char *szspec);
 void fcopy_matime(int fd, const struct stat *st);
@@ -190,7 +201,7 @@ void change_status_timer(int signal);
 void setup_next_alarm(tfc_useconds useconds);
 void skein(void *hash, size_t bits, const void *key, const void *data, size_t szdata);
 void tf_key_tweak_compat(void *key);
-tfc_yesno skeinfd(void *hash, size_t bits, const void *key, int fd, tfc_fsize readto);
+tfc_yesno skeinfd(void *hash, size_t bits, const void *key, int fd, tfc_fsize offset, tfc_fsize readto);
 
 void gen_write_bytes(const char *foutname, tfc_fsize offset, tfc_fsize nrbytes);
 void do_edbase64(char **fargv);
@@ -199,7 +210,7 @@ void do_benchmark(tfc_useconds useconds, double dseconds);
 
 enum { NO, YES };
 
-enum { TFC_ERRACT_EXIT, TFC_ERRACT_CONT, TFC_ERRACT_SYNC };
+enum { TFC_ERRACT_EXIT, TFC_ERRACT_CONT, TFC_ERRACT_SYNC, TFC_ERRACT_LSYNC };
 enum { TFC_STOP_BEGAN = 1, TFC_STOP_FULL };
 enum { TFC_DO_PLAIN, TFC_DO_ENCRYPT, TFC_DO_DECRYPT };
 enum { TFC_MAC_DROP = -1, TFC_MAC_SIGN = 1, TFC_MAC_VRFY, TFC_MAC_JUST_VRFY };