vim: src/crypt.c annotate

annotate src/crypt.c @ 33713:9aa03e12b2b5 v9.0.2090

patch 9.0.2090: complete_info() skips entries with 'noselect' Commit: https://github.com/vim/vim/commit/57f9ce1a0977da13e5923214086795ffa2d28ce1 Author: Christian Brabandt <cb@256bit.org> Date: Sat Nov 4 09:58:14 2023 +0100 patch 9.0.2090: complete_info() skips entries with 'noselect' Problem: complete_info() skips entries with 'noselect' Solution: Check, if first entry is at original text state Unfortunately, Commit daef8c74375141974d61b85199b383017644978c introduced a regression, that when ':set completeopt+=noselect' is set and no completion item has been selected yet, it did not fill the complete_info['items'] list. This happened, because the current match item did not have the CP_ORIGINAL_TEXT flag set and then the cp->prev pointer did point to the original flag item, which caused the following while loop to not being run but being skipped instead. So when the 'noselect' is set, only start with to the previous selection item, if the initial completion item has the CP_ORIGINAL_TEXT flag set, else use the 2nd previous item instead. fixes: #13451 closes: #13452 Signed-off-by: Christian Brabandt <cb@256bit.org>

author	Christian Brabandt <cb@256bit.org>
date	Sat, 04 Nov 2023 10:15:04 +0100
parents	185f2a160d5d
children	cb88e5c589d0

rev	line source
32670 695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1 /* vi:set ts=8 sts=4 sw=4 noet:
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	2 *
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	3 * VIM - Vi IMproved by Bram Moolenaar
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	4 *
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	5 * Do ":help uganda" in Vim to read copying and usage conditions.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	6 * Do ":help credits" in Vim to see a list of people who contributed.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	7 * See README.txt for an overview of the Vim source code.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	8 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	9
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	10 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	11 * crypt.c: Generic encryption support.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	12 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	13 #include "vim.h"
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	14
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	15 #if defined(FEAT_CRYPT) \|\| defined(PROTO)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	16 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	17 * Optional encryption support.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	18 * Mohsin Ahmed, mosh@sasi.com, 1998-09-24
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	19 * Based on zip/crypt sources.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	20 * Refactored by David Leadbeater, 2014.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	21 *
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	22 * NOTE FOR USA: Since 2000 exporting this code from the USA is allowed to
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	23 * most countries. There are a few exceptions, but that still should not be a
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	24 * problem since this code was originally created in Europe and India.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	25 *
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	26 * Blowfish addition originally made by Mohsin Ahmed,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	27 * http://www.cs.albany.edu/~mosh 2010-03-14
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	28 * Based on blowfish by Bruce Schneier (http://www.schneier.com/blowfish.html)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	29 * and sha256 by Christophe Devine.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	30 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	31
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	32 typedef struct {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	33 char *name; // encryption name as used in 'cryptmethod'
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	34 char *magic; // magic bytes stored in file header
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	35 int salt_len; // length of salt, or 0 when not using salt
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	36 int seed_len; // length of seed, or 0 when not using seed
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	37 int add_len; // additional length in the header needed for storing
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	38 // custom data
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	39 #ifdef CRYPT_NOT_INPLACE
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	40 int works_inplace; // encryption/decryption can be done in-place
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	41 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	42 int whole_undofile; // whole undo file is encrypted
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	43
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	44 // Optional function pointer for a self-test.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	45 int (*self_test_fn)(void);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	46
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	47 // Function pointer for initializing encryption/decryption.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	48 int (* init_fn)(cryptstate_T state, char_u key, crypt_arg_T *arg);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	49
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	50 // Function pointers for encoding/decoding from one buffer into another.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	51 // Optional, however, these or the _buffer ones should be configured.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	52 void (encode_fn)(cryptstate_T state, char_u *from, size_t len,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	53 char_u *to, int last);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	54 void (decode_fn)(cryptstate_T state, char_u *from, size_t len,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	55 char_u *to, int last);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	56
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	57 // Function pointers for encoding and decoding, can buffer data if needed.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	58 // Optional (however, these or the above should be configured).
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	59 long (encode_buffer_fn)(cryptstate_T state, char_u *from, size_t len,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	60 char_u **newptr, int last);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	61 long (decode_buffer_fn)(cryptstate_T state, char_u *from, size_t len,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	62 char_u **newptr, int last);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	63
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	64 // Function pointers for in-place encoding and decoding, used for
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	65 // crypt_*_inplace(). "from" and "to" arguments will be equal.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	66 // These may be the same as decode_fn and encode_fn above, however an
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	67 // algorithm may implement them in a way that is not interchangeable with
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	68 // the crypt_(en\|de)code() interface (for example because it wishes to add
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	69 // padding to files).
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	70 // This method is used for swap and undo files which have a rigid format.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	71 void (encode_inplace_fn)(cryptstate_T state, char_u *p1, size_t len,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	72 char_u *p2, int last);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	73 void (decode_inplace_fn)(cryptstate_T state, char_u *p1, size_t len,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	74 char_u *p2, int last);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	75 } cryptmethod_T;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	76
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	77 static int crypt_sodium_init_(cryptstate_T state, char_u key, crypt_arg_T *arg);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	78 static long crypt_sodium_buffer_decode(cryptstate_T state, char_u from, size_t len, char_u **buf_out, int last);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	79 static long crypt_sodium_buffer_encode(cryptstate_T state, char_u from, size_t len, char_u **buf_out, int last);
32719 185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	80 # if defined(FEAT_SODIUM) \|\| defined(PROTO)
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	81 static void crypt_long_long_to_char(long long n, char_u *s);
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	82 static void crypt_int_to_char(int n, char_u *s);
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	83 static long long crypt_char_to_long_long(char_u *s);
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	84 static int crypt_char_to_int(char_u *s);
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	85 #endif
32670 695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	86 #if defined(FEAT_EVAL) && defined(FEAT_SODIUM)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	87 static void crypt_sodium_report_hash_params(unsigned long long opslimit, unsigned long long ops_def, size_t memlimit, size_t mem_def, int alg, int alg_def);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	88 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	89
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	90 // index is method_nr of cryptstate_T, CRYPT_M_*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	91 static cryptmethod_T cryptmethods[CRYPT_M_COUNT] = {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	92 // PK_Zip; very weak
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	93 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	94 "zip",
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	95 "VimCrypt~01!",
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	96 0,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	97 0,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	98 0,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	99 #ifdef CRYPT_NOT_INPLACE
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	100 TRUE,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	101 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	102 FALSE,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	103 NULL,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	104 crypt_zip_init,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	105 crypt_zip_encode, crypt_zip_decode,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	106 NULL, NULL,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	107 crypt_zip_encode, crypt_zip_decode,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	108 },
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	109
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	110 // Blowfish/CFB + SHA-256 custom key derivation; implementation issues.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	111 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	112 "blowfish",
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	113 "VimCrypt~02!",
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	114 8,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	115 8,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	116 0,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	117 #ifdef CRYPT_NOT_INPLACE
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	118 TRUE,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	119 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	120 FALSE,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	121 blowfish_self_test,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	122 crypt_blowfish_init,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	123 crypt_blowfish_encode, crypt_blowfish_decode,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	124 NULL, NULL,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	125 crypt_blowfish_encode, crypt_blowfish_decode,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	126 },
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	127
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	128 // Blowfish/CFB + SHA-256 custom key derivation; fixed.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	129 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	130 "blowfish2",
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	131 "VimCrypt~03!",
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	132 8,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	133 8,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	134 0,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	135 #ifdef CRYPT_NOT_INPLACE
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	136 TRUE,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	137 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	138 TRUE,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	139 blowfish_self_test,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	140 crypt_blowfish_init,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	141 crypt_blowfish_encode, crypt_blowfish_decode,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	142 NULL, NULL,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	143 crypt_blowfish_encode, crypt_blowfish_decode,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	144 },
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	145
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	146 // XChaCha20 using libsodium; implementation issues
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	147 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	148 "xchacha20",
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	149 "VimCrypt~04!",
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	150 #ifdef FEAT_SODIUM
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	151 crypto_pwhash_argon2id_SALTBYTES, // 16
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	152 #else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	153 16,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	154 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	155 8,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	156 0,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	157 #ifdef CRYPT_NOT_INPLACE
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	158 FALSE,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	159 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	160 FALSE,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	161 NULL,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	162 crypt_sodium_init_,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	163 NULL, NULL,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	164 crypt_sodium_buffer_encode, crypt_sodium_buffer_decode,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	165 NULL, NULL,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	166 },
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	167 // XChaCha20 using libsodium; stores parameters in header
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	168 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	169 "xchacha20v2",
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	170 "VimCrypt~05!",
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	171 #ifdef FEAT_SODIUM
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	172 crypto_pwhash_argon2id_SALTBYTES, // 16
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	173 #else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	174 16,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	175 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	176 8,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	177 // sizeof(crypto_pwhash_OPSLIMIT_INTERACTIVE + crypto_pwhash_MEMLIMIT_INTERACTIVE + crypto_pwhash_ALG_DEFAULT)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	178 20,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	179 #ifdef CRYPT_NOT_INPLACE
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	180 FALSE,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	181 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	182 FALSE,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	183 NULL,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	184 crypt_sodium_init_,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	185 NULL, NULL,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	186 crypt_sodium_buffer_encode, crypt_sodium_buffer_decode,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	187 NULL, NULL,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	188 },
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	189
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	190 // NOTE: when adding a new method, use some random bytes for the magic key,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	191 // to avoid that a text file is recognized as encrypted.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	192 };
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	193
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	194 #if defined(FEAT_SODIUM) \|\| defined(PROTO)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	195 typedef struct {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	196 size_t count;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	197 unsigned char key[crypto_box_SEEDBYTES];
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	198 // 32, same as crypto_secretstream_xchacha20poly1305_KEYBYTES
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	199 crypto_secretstream_xchacha20poly1305_state
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	200 state;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	201 } sodium_state_T;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	202
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	203
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	204 # ifdef DYNAMIC_SODIUM
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	205 # ifdef MSWIN
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	206 # define SODIUM_PROC FARPROC
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	207 # define load_dll vimLoadLib
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	208 # define symbol_from_dll GetProcAddress
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	209 # define close_dll FreeLibrary
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	210 # define load_dll_error GetWin32Error
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	211 # else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	212 # error Dynamic loading of libsodium is not supported for now.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	213 //# define HINSTANCE void*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	214 //# define SODIUM_PROC void*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	215 //# define load_dll(n) dlopen((n), RTLD_LAZY\|RTLD_GLOBAL)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	216 //# define symbol_from_dll dlsym
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	217 //# define close_dll dlclose
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	218 //# define load_dll_error dlerror
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	219 # endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	220
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	221 # define sodium_init load_sodium
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	222 # define sodium_free dll_sodium_free
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	223 # define sodium_malloc dll_sodium_malloc
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	224 # define sodium_memzero dll_sodium_memzero
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	225 # define sodium_mlock dll_sodium_mlock
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	226 # define sodium_munlock dll_sodium_munlock
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	227 # define crypto_secretstream_xchacha20poly1305_init_push \
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	228 dll_crypto_secretstream_xchacha20poly1305_init_push
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	229 # define crypto_secretstream_xchacha20poly1305_push \
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	230 dll_crypto_secretstream_xchacha20poly1305_push
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	231 # define crypto_secretstream_xchacha20poly1305_init_pull \
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	232 dll_crypto_secretstream_xchacha20poly1305_init_pull
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	233 # define crypto_secretstream_xchacha20poly1305_pull \
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	234 dll_crypto_secretstream_xchacha20poly1305_pull
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	235 # define crypto_pwhash dll_crypto_pwhash
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	236 # define randombytes_buf dll_randombytes_buf
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	237 # define randombytes_random dll_randombytes_random
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	238
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	239 static int (*dll_sodium_init)(void) = NULL;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	240 static void (dll_sodium_free)(void ) = NULL;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	241 static void (dll_sodium_malloc)(const size_t) = NULL;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	242 static void (dll_sodium_memzero)(void const, const size_t) = NULL;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	243 static int (dll_sodium_mlock)(void const, const size_t) = NULL;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	244 static int (dll_sodium_munlock)(void const, const size_t) = NULL;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	245 static int (*dll_crypto_secretstream_xchacha20poly1305_init_push)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	246 (crypto_secretstream_xchacha20poly1305_state *state,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	247 unsigned char [],
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	248 const unsigned char []) = NULL;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	249 static int (*dll_crypto_secretstream_xchacha20poly1305_push)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	250 (crypto_secretstream_xchacha20poly1305_state *state,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	251 unsigned char c, unsigned long long clen_p,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	252 const unsigned char *m, unsigned long long mlen,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	253 const unsigned char *ad, unsigned long long adlen, unsigned char tag)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	254 = NULL;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	255 static int (*dll_crypto_secretstream_xchacha20poly1305_init_pull)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	256 (crypto_secretstream_xchacha20poly1305_state *state,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	257 const unsigned char [],
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	258 const unsigned char []) = NULL;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	259 static int (*dll_crypto_secretstream_xchacha20poly1305_pull)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	260 (crypto_secretstream_xchacha20poly1305_state *state,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	261 unsigned char m, unsigned long long mlen_p, unsigned char *tag_p,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	262 const unsigned char *c, unsigned long long clen,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	263 const unsigned char *ad, unsigned long long adlen) = NULL;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	264 static int (dll_crypto_pwhash)(unsigned char const out,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	265 unsigned long long outlen,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	266 const char * const passwd, unsigned long long passwdlen,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	267 const unsigned char * const salt,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	268 unsigned long long opslimit, size_t memlimit, int alg)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	269 = NULL;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	270 static void (dll_randombytes_buf)(void const buf, const size_t size);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	271 static uint32_t (*dll_randombytes_random)(void);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	272
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	273 static struct {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	274 const char *name;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	275 SODIUM_PROC *ptr;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	276 } sodium_funcname_table[] = {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	277 {"sodium_init", (SODIUM_PROC*)&dll_sodium_init},
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	278 {"sodium_free", (SODIUM_PROC*)&dll_sodium_free},
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	279 {"sodium_malloc", (SODIUM_PROC*)&dll_sodium_malloc},
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	280 {"sodium_memzero", (SODIUM_PROC*)&dll_sodium_memzero},
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	281 {"sodium_mlock", (SODIUM_PROC*)&dll_sodium_mlock},
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	282 {"sodium_munlock", (SODIUM_PROC*)&dll_sodium_munlock},
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	283 {"crypto_secretstream_xchacha20poly1305_init_push", (SODIUM_PROC*)&dll_crypto_secretstream_xchacha20poly1305_init_push},
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	284 {"crypto_secretstream_xchacha20poly1305_push", (SODIUM_PROC*)&dll_crypto_secretstream_xchacha20poly1305_push},
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	285 {"crypto_secretstream_xchacha20poly1305_init_pull", (SODIUM_PROC*)&dll_crypto_secretstream_xchacha20poly1305_init_pull},
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	286 {"crypto_secretstream_xchacha20poly1305_pull", (SODIUM_PROC*)&dll_crypto_secretstream_xchacha20poly1305_pull},
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	287 {"crypto_pwhash", (SODIUM_PROC*)&dll_crypto_pwhash},
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	288 {"randombytes_buf", (SODIUM_PROC*)&dll_randombytes_buf},
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	289 {"randombytes_random", (SODIUM_PROC*)&dll_randombytes_random},
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	290 {NULL, NULL}
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	291 };
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	292
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	293 static int
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	294 sodium_runtime_link_init(int verbose)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	295 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	296 static HINSTANCE hsodium = NULL;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	297 const char *libname = DYNAMIC_SODIUM_DLL;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	298 int i;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	299
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	300 if (hsodium != NULL)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	301 return OK;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	302
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	303 hsodium = load_dll(libname);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	304 if (hsodium == NULL)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	305 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	306 if (verbose)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	307 semsg(_(e_could_not_load_library_str_str), libname, load_dll_error());
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	308 return FAIL;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	309 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	310
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	311 for (i = 0; sodium_funcname_table[i].ptr; ++i)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	312 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	313 if ((*sodium_funcname_table[i].ptr = symbol_from_dll(hsodium,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	314 sodium_funcname_table[i].name)) == NULL)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	315 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	316 close_dll(hsodium);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	317 hsodium = NULL;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	318 if (verbose)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	319 semsg(_(e_could_not_load_library_function_str), sodium_funcname_table[i].name);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	320 return FAIL;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	321 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	322 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	323 return OK;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	324 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	325
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	326 static int
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	327 load_sodium(void)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	328 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	329 if (sodium_runtime_link_init(TRUE) == FAIL)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	330 return -1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	331 return dll_sodium_init();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	332 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	333 # endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	334
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	335 # if defined(DYNAMIC_SODIUM) \|\| defined(PROTO)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	336 int
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	337 sodium_enabled(int verbose)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	338 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	339 return sodium_runtime_link_init(verbose) == OK;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	340 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	341 # endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	342 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	343
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	344 #define CRYPT_MAGIC_LEN 12 // cannot change
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	345 static char crypt_magic_head[] = "VimCrypt~";
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	346
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	347 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	348 * Return int value for crypt method name.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	349 * 0 for "zip", the old method. Also for any non-valid value.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	350 * 1 for "blowfish".
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	351 * 2 for "blowfish2".
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	352 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	353 int
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	354 crypt_method_nr_from_name(char_u *name)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	355 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	356 int i;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	357
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	358 for (i = 0; i < CRYPT_M_COUNT; ++i)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	359 if (STRCMP(name, cryptmethods[i].name) == 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	360 return i;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	361 return 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	362 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	363
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	364 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	365 * Get the crypt method used for a file from "ptr[len]", the magic text at the
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	366 * start of the file.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	367 * Returns -1 when no encryption used.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	368 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	369 int
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	370 crypt_method_nr_from_magic(char *ptr, int len)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	371 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	372 int i;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	373
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	374 if (len < CRYPT_MAGIC_LEN)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	375 return -1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	376
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	377 for (i = 0; i < CRYPT_M_COUNT; i++)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	378 if (memcmp(ptr, cryptmethods[i].magic, CRYPT_MAGIC_LEN) == 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	379 return i;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	380
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	381 i = (int)STRLEN(crypt_magic_head);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	382 if (len >= i && memcmp(ptr, crypt_magic_head, i) == 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	383 emsg(_(e_file_is_encrypted_with_unknown_method));
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	384
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	385 return -1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	386 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	387
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	388 #ifdef CRYPT_NOT_INPLACE
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	389 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	390 * Return TRUE if the crypt method for "method_nr" can be done in-place.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	391 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	392 int
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	393 crypt_works_inplace(cryptstate_T *state)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	394 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	395 return cryptmethods[state->method_nr].works_inplace;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	396 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	397 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	398
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	399 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	400 * Get the crypt method for buffer "buf" as a number.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	401 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	402 int
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	403 crypt_get_method_nr(buf_T *buf)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	404 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	405 return crypt_method_nr_from_name(*buf->b_p_cm == NUL ? p_cm : buf->b_p_cm);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	406 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	407
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	408 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	409 * Returns True for Sodium Encryption.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	410 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	411 int
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	412 crypt_method_is_sodium(int method)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	413 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	414 return method == CRYPT_M_SOD \|\| method == CRYPT_M_SOD2;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	415 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	416
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	417 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	418 * Return TRUE when the buffer uses an encryption method that encrypts the
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	419 * whole undo file, not only the text.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	420 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	421 int
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	422 crypt_whole_undofile(int method_nr)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	423 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	424 return cryptmethods[method_nr].whole_undofile;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	425 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	426
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	427 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	428 * Get crypt method specific length of the file header in bytes.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	429 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	430 int
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	431 crypt_get_header_len(int method_nr)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	432 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	433 return CRYPT_MAGIC_LEN
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	434 + cryptmethods[method_nr].salt_len
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	435 + cryptmethods[method_nr].seed_len
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	436 + cryptmethods[method_nr].add_len;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	437 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	438
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	439
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	440 #if defined(FEAT_SODIUM) \|\| defined(PROTO)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	441 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	442 * Get maximum crypt method specific length of the file header in bytes.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	443 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	444 int
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	445 crypt_get_max_header_len(void)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	446 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	447 int i;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	448 int max = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	449 int temp = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	450
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	451 for (i = 0; i < CRYPT_M_COUNT; ++i)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	452 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	453 temp = crypt_get_header_len(i);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	454 if (temp > max)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	455 max = temp;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	456 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	457 return max;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	458 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	459 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	460
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	461 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	462 * Set the crypt method for buffer "buf" to "method_nr" using the int value as
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	463 * returned by crypt_method_nr_from_name().
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	464 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	465 void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	466 crypt_set_cm_option(buf_T *buf, int method_nr)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	467 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	468 free_string_option(buf->b_p_cm);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	469 buf->b_p_cm = vim_strsave((char_u *)cryptmethods[method_nr].name);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	470 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	471
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	472 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	473 * If the crypt method for the current buffer has a self-test, run it and
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	474 * return OK/FAIL.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	475 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	476 int
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	477 crypt_self_test(void)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	478 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	479 int method_nr = crypt_get_method_nr(curbuf);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	480
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	481 if (cryptmethods[method_nr].self_test_fn == NULL)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	482 return OK;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	483 return cryptmethods[method_nr].self_test_fn();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	484 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	485
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	486 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	487 * Allocate a crypt state and initialize it.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	488 * Return NULL for failure.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	489 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	490 cryptstate_T *
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	491 crypt_create(
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	492 int method_nr,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	493 char_u *key,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	494 crypt_arg_T *crypt_arg)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	495 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	496 cryptstate_T *state = ALLOC_ONE(cryptstate_T);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	497
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	498 if (state == NULL)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	499 return state;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	500
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	501 state->method_nr = method_nr;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	502 if (cryptmethods[method_nr].init_fn(state, key, crypt_arg) == FAIL)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	503 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	504 vim_free(state);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	505 return NULL;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	506 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	507 return state;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	508 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	509
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	510 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	511 * Allocate a crypt state from a file header and initialize it.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	512 * Assumes that header contains at least the number of bytes that
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	513 * crypt_get_header_len() returns for "method_nr".
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	514 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	515 cryptstate_T *
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	516 crypt_create_from_header(
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	517 int method_nr,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	518 char_u *key,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	519 char_u *header)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	520 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	521 crypt_arg_T arg;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	522
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	523 CLEAR_FIELD(arg);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	524 arg.cat_init_from_file = TRUE;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	525
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	526 arg.cat_salt_len = cryptmethods[method_nr].salt_len;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	527 arg.cat_seed_len = cryptmethods[method_nr].seed_len;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	528 arg.cat_add_len = cryptmethods[method_nr].add_len;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	529 if (arg.cat_salt_len > 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	530 arg.cat_salt = header + CRYPT_MAGIC_LEN;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	531 if (arg.cat_seed_len > 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	532 arg.cat_seed = header + CRYPT_MAGIC_LEN + arg.cat_salt_len;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	533 if (arg.cat_add_len > 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	534 arg.cat_add = header + CRYPT_MAGIC_LEN
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	535 + arg.cat_salt_len + arg.cat_seed_len;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	536
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	537 return crypt_create(method_nr, key, &arg);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	538 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	539
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	540 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	541 * Read the crypt method specific header data from "fp".
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	542 * Return an allocated cryptstate_T or NULL on error.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	543 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	544 cryptstate_T *
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	545 crypt_create_from_file(FILE fp, char_u key)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	546 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	547 int method_nr;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	548 int header_len;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	549 char magic_buffer[CRYPT_MAGIC_LEN];
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	550 char_u *buffer;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	551 cryptstate_T *state;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	552
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	553 if (fread(magic_buffer, CRYPT_MAGIC_LEN, 1, fp) != 1)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	554 return NULL;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	555 method_nr = crypt_method_nr_from_magic(magic_buffer, CRYPT_MAGIC_LEN);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	556 if (method_nr < 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	557 return NULL;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	558
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	559 header_len = crypt_get_header_len(method_nr);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	560 if ((buffer = alloc(header_len)) == NULL)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	561 return NULL;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	562 mch_memmove(buffer, magic_buffer, CRYPT_MAGIC_LEN);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	563 if (header_len > CRYPT_MAGIC_LEN
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	564 && fread(buffer + CRYPT_MAGIC_LEN,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	565 header_len - CRYPT_MAGIC_LEN, 1, fp) != 1)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	566 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	567 vim_free(buffer);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	568 return NULL;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	569 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	570
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	571 state = crypt_create_from_header(method_nr, key, buffer);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	572 vim_free(buffer);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	573 return state;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	574 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	575
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	576 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	577 * Allocate a cryptstate_T for writing and initialize it with "key".
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	578 * Allocates and fills in the header and stores it in "header", setting
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	579 * "header_len". The header may include salt and seed, depending on
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	580 * cryptmethod. Caller must free header.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	581 * Returns the state or NULL on failure.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	582 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	583 cryptstate_T *
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	584 crypt_create_for_writing(
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	585 int method_nr,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	586 char_u *key,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	587 char_u **header,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	588 int *header_len)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	589 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	590 int len = crypt_get_header_len(method_nr);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	591 crypt_arg_T arg;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	592 cryptstate_T *state;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	593
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	594 CLEAR_FIELD(arg);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	595 arg.cat_salt_len = cryptmethods[method_nr].salt_len;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	596 arg.cat_seed_len = cryptmethods[method_nr].seed_len;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	597 arg.cat_add_len = cryptmethods[method_nr].add_len;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	598 arg.cat_init_from_file = FALSE;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	599
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	600 *header_len = len;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	601 *header = alloc(len);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	602 if (*header == NULL)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	603 return NULL;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	604
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	605 mch_memmove(*header, cryptmethods[method_nr].magic, CRYPT_MAGIC_LEN);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	606 if (arg.cat_salt_len > 0 \|\| arg.cat_seed_len > 0 \|\| arg.cat_add_len > 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	607 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	608 if (arg.cat_salt_len > 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	609 arg.cat_salt = *header + CRYPT_MAGIC_LEN;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	610 if (arg.cat_seed_len > 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	611 arg.cat_seed = *header + CRYPT_MAGIC_LEN + arg.cat_salt_len;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	612 if (arg.cat_add_len > 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	613 arg.cat_add = *header + CRYPT_MAGIC_LEN
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	614 + arg.cat_salt_len + arg.cat_seed_len;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	615
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	616 // TODO: Should this be crypt method specific? (Probably not worth
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	617 // it). sha2_seed is pretty bad for large amounts of entropy, so make
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	618 // that into something which is suitable for anything.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	619 #ifdef FEAT_SODIUM
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	620 if (sodium_init() >= 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	621 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	622 if (arg.cat_salt_len > 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	623 randombytes_buf(arg.cat_salt, arg.cat_salt_len);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	624 if (arg.cat_seed_len > 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	625 randombytes_buf(arg.cat_seed, arg.cat_seed_len);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	626 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	627 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	628 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	629 sha2_seed(arg.cat_salt, arg.cat_salt_len, arg.cat_seed, arg.cat_seed_len);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	630 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	631 state = crypt_create(method_nr, key, &arg);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	632 if (state == NULL)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	633 VIM_CLEAR(*header);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	634 return state;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	635 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	636
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	637 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	638 * Free the crypt state.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	639 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	640 void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	641 crypt_free_state(cryptstate_T *state)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	642 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	643 #ifdef FEAT_SODIUM
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	644 if (crypt_method_is_sodium(state->method_nr))
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	645 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	646 sodium_munlock(((sodium_state_T *)state->method_state)->key,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	647 crypto_box_SEEDBYTES);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	648 sodium_memzero(state->method_state, sizeof(sodium_state_T));
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	649 sodium_free(state->method_state);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	650 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	651 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	652 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	653 vim_free(state->method_state);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	654 vim_free(state);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	655 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	656
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	657 #ifdef CRYPT_NOT_INPLACE
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	658 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	659 * Encode "from[len]" and store the result in a newly allocated buffer, which
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	660 * is stored in "newptr".
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	661 * Return number of bytes in "newptr", 0 for need more or -1 on error.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	662 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	663 long
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	664 crypt_encode_alloc(
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	665 cryptstate_T *state,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	666 char_u *from,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	667 size_t len,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	668 char_u **newptr,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	669 int last)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	670 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	671 cryptmethod_T *method = &cryptmethods[state->method_nr];
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	672
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	673 if (method->encode_buffer_fn != NULL)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	674 // Has buffer function, pass through.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	675 return method->encode_buffer_fn(state, from, len, newptr, last);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	676 if (len == 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	677 // Not buffering, just return EOF.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	678 return (long)len;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	679
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	680 *newptr = alloc(len + 50);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	681 if (*newptr == NULL)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	682 return -1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	683 method->encode_fn(state, from, len, *newptr, last);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	684 return (long)len;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	685 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	686
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	687 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	688 * Decrypt "ptr[len]" and store the result in a newly allocated buffer, which
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	689 * is stored in "newptr".
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	690 * Return number of bytes in "newptr", 0 for need more or -1 on error.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	691 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	692 long
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	693 crypt_decode_alloc(
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	694 cryptstate_T *state,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	695 char_u *ptr,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	696 long len,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	697 char_u **newptr,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	698 int last)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	699 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	700 cryptmethod_T *method = &cryptmethods[state->method_nr];
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	701
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	702 if (method->decode_buffer_fn != NULL)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	703 // Has buffer function, pass through.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	704 return method->decode_buffer_fn(state, ptr, len, newptr, last);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	705
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	706 if (len == 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	707 // Not buffering, just return EOF.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	708 return len;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	709
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	710 *newptr = alloc(len);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	711 if (*newptr == NULL)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	712 return -1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	713 method->decode_fn(state, ptr, len, *newptr, last);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	714 return len;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	715 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	716 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	717
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	718 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	719 * Encrypting "from[len]" into "to[len]".
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	720 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	721 void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	722 crypt_encode(
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	723 cryptstate_T *state,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	724 char_u *from,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	725 size_t len,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	726 char_u *to,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	727 int last)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	728 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	729 cryptmethods[state->method_nr].encode_fn(state, from, len, to, last);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	730 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	731
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	732 #if 0 // unused
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	733 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	734 * decrypting "from[len]" into "to[len]".
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	735 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	736 void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	737 crypt_decode(
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	738 cryptstate_T *state,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	739 char_u *from,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	740 size_t len,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	741 char_u *to,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	742 int last)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	743 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	744 cryptmethods[state->method_nr].decode_fn(state, from, len, to, last);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	745 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	746 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	747
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	748 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	749 * Simple inplace encryption, modifies "buf[len]" in place.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	750 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	751 void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	752 crypt_encode_inplace(
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	753 cryptstate_T *state,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	754 char_u *buf,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	755 size_t len,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	756 int last)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	757 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	758 cryptmethods[state->method_nr].encode_inplace_fn(state, buf, len,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	759 buf, last);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	760 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	761
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	762 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	763 * Simple inplace decryption, modifies "buf[len]" in place.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	764 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	765 void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	766 crypt_decode_inplace(
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	767 cryptstate_T *state,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	768 char_u *buf,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	769 size_t len,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	770 int last)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	771 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	772 cryptmethods[state->method_nr].decode_inplace_fn(state, buf, len,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	773 buf, last);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	774 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	775
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	776 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	777 * Free an allocated crypt key. Clear the text to make sure it doesn't stay
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	778 * in memory anywhere.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	779 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	780 void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	781 crypt_free_key(char_u *key)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	782 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	783 char_u *p;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	784
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	785 if (key != NULL)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	786 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	787 for (p = key; *p != NUL; ++p)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	788 *p = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	789 vim_free(key);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	790 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	791 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	792
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	793 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	794 * Check the crypt method and give a warning if it's outdated.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	795 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	796 void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	797 crypt_check_method(int method)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	798 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	799 if (method < CRYPT_M_BF2 \|\| method == CRYPT_M_SOD)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	800 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	801 msg_scroll = TRUE;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	802 msg(_("Warning: Using a weak encryption method; see :help 'cm'"));
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	803 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	804 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	805
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	806 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	807 * If the crypt method for "curbuf" does not support encrypting the swap file
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	808 * then disable the swap file.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	809 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	810 void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	811 crypt_check_swapfile_curbuf(void)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	812 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	813 #ifdef FEAT_SODIUM
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	814 int method = crypt_get_method_nr(curbuf);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	815 if (crypt_method_is_sodium(method))
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	816 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	817 // encryption uses padding and MAC, that does not work very well with
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	818 // swap and undo files, so disable them
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	819 mf_close_file(curbuf, TRUE); // remove the swap file
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	820 set_option_value_give_err((char_u *)"swf", 0, NULL, OPT_LOCAL);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	821 msg_scroll = TRUE;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	822 msg(_("Note: Encryption of swapfile not supported, disabling swap file"));
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	823 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	824 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	825 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	826
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	827 void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	828 crypt_check_current_method(void)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	829 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	830 crypt_check_method(crypt_get_method_nr(curbuf));
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	831 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	832
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	833 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	834 * Ask the user for a crypt key.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	835 * When "store" is TRUE, the new key is stored in the 'key' option, and the
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	836 * 'key' option value is returned: Don't free it.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	837 * When "store" is FALSE, the typed key is returned in allocated memory.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	838 * Returns NULL on failure.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	839 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	840 char_u *
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	841 crypt_get_key(
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	842 int store,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	843 int twice) // Ask for the key twice.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	844 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	845 char_u p1, p2 = NULL;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	846 int round;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	847
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	848 for (round = 0; ; ++round)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	849 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	850 cmdline_star = TRUE;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	851 cmdline_row = msg_row;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	852 p1 = getcmdline_prompt(NUL, round == 0
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	853 ? (char_u *)_("Enter encryption key: ")
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	854 : (char_u *)_("Enter same key again: "), 0, EXPAND_NOTHING,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	855 NULL);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	856 cmdline_star = FALSE;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	857
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	858 if (p1 == NULL)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	859 break;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	860
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	861 if (round == twice)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	862 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	863 if (p2 != NULL && STRCMP(p1, p2) != 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	864 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	865 msg(_("Keys don't match!"));
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	866 crypt_free_key(p1);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	867 crypt_free_key(p2);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	868 p2 = NULL;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	869 round = -1; // do it again
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	870 continue;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	871 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	872
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	873 if (store)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	874 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	875 set_option_value_give_err((char_u *)"key", 0L, p1, OPT_LOCAL);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	876 crypt_free_key(p1);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	877 p1 = curbuf->b_p_key;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	878 crypt_check_swapfile_curbuf();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	879 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	880 break;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	881 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	882 p2 = p1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	883 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	884
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	885 // since the user typed this, no need to wait for return
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	886 if (!crypt_method_is_sodium(crypt_get_method_nr(curbuf)))
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	887 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	888 if (msg_didout)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	889 msg_putchar('\n');
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	890 need_wait_return = FALSE;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	891 msg_didout = FALSE;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	892 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	893
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	894 crypt_free_key(p2);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	895 return p1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	896 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	897
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	898
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	899 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	900 * Append a message to IObuff for the encryption/decryption method being used.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	901 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	902 void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	903 crypt_append_msg(
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	904 buf_T *buf)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	905 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	906 if (crypt_get_method_nr(buf) == 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	907 STRCAT(IObuff, _("[crypted]"));
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	908 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	909 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	910 STRCAT(IObuff, "[");
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	911 STRCAT(IObuff, *buf->b_p_cm == NUL ? p_cm : buf->b_p_cm);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	912 STRCAT(IObuff, "]");
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	913 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	914 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	915
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	916 static int
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	917 crypt_sodium_init_(
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	918 cryptstate_T *state UNUSED,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	919 char_u *key UNUSED,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	920 crypt_arg_T *arg UNUSED)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	921 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	922 # ifdef FEAT_SODIUM
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	923 // crypto_box_SEEDBYTES == crypto_secretstream_xchacha20poly1305_KEYBYTES
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	924 unsigned char dkey[crypto_box_SEEDBYTES]; // 32
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	925 sodium_state_T *sd_state;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	926 int retval = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	927 unsigned long long opslimit;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	928 unsigned long long memlimit;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	929 int alg;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	930
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	931 if (sodium_init() < 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	932 return FAIL;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	933
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	934 sd_state = (sodium_state_T *)sodium_malloc(sizeof(sodium_state_T));
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	935 sodium_memzero(sd_state, sizeof(sodium_state_T));
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	936
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	937 if ((state->method_nr == CRYPT_M_SOD2 && !arg->cat_init_from_file)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	938 \|\| state->method_nr == CRYPT_M_SOD)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	939 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	940 opslimit = crypto_pwhash_OPSLIMIT_INTERACTIVE;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	941 memlimit = crypto_pwhash_MEMLIMIT_INTERACTIVE;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	942 alg = crypto_pwhash_ALG_DEFAULT;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	943
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	944 #if 0
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	945 // For testing
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	946 if (state->method_nr == CRYPT_M_SOD2)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	947 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	948 opslimit = crypto_pwhash_OPSLIMIT_MODERATE;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	949 memlimit = crypto_pwhash_MEMLIMIT_MODERATE;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	950 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	951 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	952
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	953 // derive a key from the password
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	954 if (crypto_pwhash(dkey, sizeof(dkey), (const char *)key, STRLEN(key),
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	955 arg->cat_salt, opslimit, (size_t)memlimit, alg) != 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	956 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	957 // out of memory
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	958 sodium_free(sd_state);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	959 return FAIL;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	960 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	961 memcpy(sd_state->key, dkey, crypto_box_SEEDBYTES);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	962
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	963 retval += sodium_mlock(sd_state->key, crypto_box_SEEDBYTES);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	964 retval += sodium_mlock(key, STRLEN(key));
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	965
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	966 if (retval < 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	967 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	968 emsg(_(e_encryption_sodium_mlock_failed));
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	969 sodium_free(sd_state);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	970 return FAIL;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	971 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	972 // "cat_add" should not be NULL, check anyway for safety
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	973 if (state->method_nr == CRYPT_M_SOD2 && arg->cat_add != NULL)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	974 {
32719 185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	975 char_u buffer[20];
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	976 char_u *p = buffer;
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	977 vim_memset(buffer, 0, 20);
32670 695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	978
32719 185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	979 crypt_long_long_to_char(opslimit, p);
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	980 p += sizeof(opslimit);
32670 695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	981
32719 185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	982 crypt_long_long_to_char(memlimit, p);
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	983 p += sizeof(memlimit);
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	984
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	985 crypt_int_to_char(alg, p);
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	986 memcpy(arg->cat_add, buffer, sizeof(opslimit) + sizeof(memlimit) + sizeof(alg));
32670 695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	987 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	988 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	989 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	990 {
32719 185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	991 char_u buffer[20];
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	992 char_u *p = buffer;
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	993 vim_memset(buffer, 0, 20);
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	994 int size = sizeof(opslimit) +
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	995 sizeof(memlimit) + sizeof(alg);
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	996
32670 695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	997 // Reading parameters from file
32719 185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	998 if (arg->cat_add_len < size)
32670 695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	999 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1000 sodium_free(sd_state);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1001 return FAIL;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1002 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1003
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1004 // derive the key from the file header
32719 185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1005 memcpy(p, arg->cat_add, size);
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1006 arg->cat_add += size;
32670 695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1007
32719 185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1008 opslimit = crypt_char_to_long_long(p);
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1009 p += sizeof(opslimit);
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1010 memlimit = crypt_char_to_long_long(p);
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1011 p += sizeof(memlimit);
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1012 alg = crypt_char_to_int(p);
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1013 p += sizeof(alg);
32670 695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1014
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1015 #ifdef FEAT_EVAL
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1016 crypt_sodium_report_hash_params(opslimit,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1017 crypto_pwhash_OPSLIMIT_INTERACTIVE,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1018 (size_t)memlimit, crypto_pwhash_MEMLIMIT_INTERACTIVE,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1019 alg, crypto_pwhash_ALG_DEFAULT);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1020 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1021
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1022 if (crypto_pwhash(dkey, sizeof(dkey), (const char *)key, STRLEN(key),
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1023 arg->cat_salt, opslimit, (size_t)memlimit, alg) != 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1024 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1025 // out of memory
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1026 sodium_free(sd_state);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1027 return FAIL;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1028 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1029 memcpy(sd_state->key, dkey, crypto_box_SEEDBYTES);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1030
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1031 retval += sodium_mlock(sd_state->key, crypto_box_SEEDBYTES);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1032 retval += sodium_mlock(key, STRLEN(key));
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1033
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1034 if (retval < 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1035 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1036 emsg(_(e_encryption_sodium_mlock_failed));
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1037 sodium_free(sd_state);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1038 return FAIL;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1039 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1040 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1041 sd_state->count = 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1042 state->method_state = sd_state;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1043
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1044 return OK;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1045 # else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1046 emsg(_(e_libsodium_not_built_in));
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1047 return FAIL;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1048 # endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1049 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1050
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1051 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1052 * Encrypt "from[len]" into "to[len]".
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1053 * "from" and "to" can be equal to encrypt in place.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1054 * Call needs to ensure that there is enough space in to (for the header)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1055 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1056 #if 0 // Currently unused
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1057 void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1058 crypt_sodium_encode(
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1059 cryptstate_T *state UNUSED,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1060 char_u *from UNUSED,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1061 size_t len UNUSED,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1062 char_u *to UNUSED,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1063 int last UNUSED)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1064 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1065 # ifdef FEAT_SODIUM
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1066 // crypto_box_SEEDBYTES == crypto_secretstream_xchacha20poly1305_KEYBYTES
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1067 sodium_state_T *sod_st = state->method_state;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1068 unsigned char tag = last
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1069 ? crypto_secretstream_xchacha20poly1305_TAG_FINAL : 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1070
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1071 if (sod_st->count == 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1072 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1073 if (len <= crypto_secretstream_xchacha20poly1305_HEADERBYTES)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1074 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1075 emsg(_(e_libsodium_cannot_encrypt_header));
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1076 return;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1077 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1078 crypto_secretstream_xchacha20poly1305_init_push(&sod_st->state,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1079 to, sod_st->key);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1080 to += crypto_secretstream_xchacha20poly1305_HEADERBYTES;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1081 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1082
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1083 if (sod_st->count && len <= crypto_secretstream_xchacha20poly1305_ABYTES)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1084 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1085 emsg(_(e_libsodium_cannot_encrypt_buffer));
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1086 return;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1087 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1088
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1089 crypto_secretstream_xchacha20poly1305_push(&sod_st->state, to, NULL,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1090 from, len, NULL, 0, tag);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1091
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1092 sod_st->count++;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1093 # endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1094 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1095 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1096
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1097 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1098 * Decrypt "from[len]" into "to[len]".
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1099 * "from" and "to" can be equal to encrypt in place.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1100 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1101 #if 0 // Currently unused
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1102 void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1103 crypt_sodium_decode(
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1104 cryptstate_T *state UNUSED,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1105 char_u *from UNUSED,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1106 size_t len UNUSED,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1107 char_u *to UNUSED,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1108 int last UNUSED)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1109 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1110 # ifdef FEAT_SODIUM
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1111 // crypto_box_SEEDBYTES == crypto_secretstream_xchacha20poly1305_KEYBYTES
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1112 sodium_state_T *sod_st = state->method_state;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1113 unsigned char tag;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1114 unsigned long long buf_len;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1115 char_u *p1 = from;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1116 char_u *p2 = to;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1117 char_u *buf_out;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1118
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1119 if (sod_st->count == 0
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1120 && len <= crypto_secretstream_xchacha20poly1305_HEADERBYTES)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1121 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1122 emsg(_(e_libsodium_cannot_decrypt_header));
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1123 return;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1124 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1125
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1126 buf_out = (char_u *)alloc(len);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1127
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1128 if (buf_out == NULL)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1129 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1130 emsg(_(e_libsodium_cannot_allocate_buffer));
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1131 return;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1132 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1133 if (sod_st->count == 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1134 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1135 if (crypto_secretstream_xchacha20poly1305_init_pull(
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1136 &sod_st->state, from, sod_st->key) != 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1137 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1138 emsg(_(e_libsodium_decryption_failed_header_incomplete));
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1139 goto fail;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1140 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1141
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1142 from += crypto_secretstream_xchacha20poly1305_HEADERBYTES;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1143 len -= crypto_secretstream_xchacha20poly1305_HEADERBYTES;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1144
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1145 if (p1 == p2)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1146 to += crypto_secretstream_xchacha20poly1305_HEADERBYTES;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1147 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1148
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1149 if (sod_st->count && len <= crypto_secretstream_xchacha20poly1305_ABYTES)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1150 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1151 emsg(_(e_libsodium_cannot_decrypt_buffer));
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1152 goto fail;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1153 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1154 if (crypto_secretstream_xchacha20poly1305_pull(&sod_st->state,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1155 buf_out, &buf_len, &tag, from, len, NULL, 0) != 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1156 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1157 emsg(_(e_libsodium_decryption_failed));
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1158 goto fail;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1159 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1160 sod_st->count++;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1161
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1162 if (tag == crypto_secretstream_xchacha20poly1305_TAG_FINAL && !last)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1163 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1164 emsg(_(e_libsodium_decryption_failed_premature));
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1165 goto fail;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1166 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1167 if (p1 == p2)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1168 mch_memmove(p2, buf_out, buf_len);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1169
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1170 fail:
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1171 vim_free(buf_out);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1172 # endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1173 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1174 #endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1175
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1176 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1177 * Encrypt "from[len]" into "to[len]".
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1178 * "from" and "to" can be equal to encrypt in place.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1179 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1180 static long
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1181 crypt_sodium_buffer_encode(
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1182 cryptstate_T *state UNUSED,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1183 char_u *from UNUSED,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1184 size_t len UNUSED,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1185 char_u **buf_out UNUSED,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1186 int last UNUSED)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1187 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1188 # ifdef FEAT_SODIUM
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1189 // crypto_box_SEEDBYTES == crypto_secretstream_xchacha20poly1305_KEYBYTES
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1190 unsigned long long out_len;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1191 char_u *ptr;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1192 unsigned char tag = last
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1193 ? crypto_secretstream_xchacha20poly1305_TAG_FINAL : 0;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1194 int length;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1195 sodium_state_T *sod_st = state->method_state;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1196 int first = (sod_st->count == 0);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1197
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1198 length = (int)len + crypto_secretstream_xchacha20poly1305_ABYTES
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1199 + (first ? crypto_secretstream_xchacha20poly1305_HEADERBYTES : 0);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1200 *buf_out = alloc_clear(length);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1201 if (*buf_out == NULL)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1202 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1203 emsg(_(e_libsodium_cannot_allocate_buffer));
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1204 return -1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1205 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1206 ptr = *buf_out;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1207
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1208 if (first)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1209 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1210 crypto_secretstream_xchacha20poly1305_init_push(&sod_st->state,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1211 ptr, sod_st->key);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1212 ptr += crypto_secretstream_xchacha20poly1305_HEADERBYTES;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1213 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1214
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1215 crypto_secretstream_xchacha20poly1305_push(&sod_st->state, ptr,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1216 &out_len, from, len, NULL, 0, tag);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1217
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1218 sod_st->count++;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1219 return out_len + (first
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1220 ? crypto_secretstream_xchacha20poly1305_HEADERBYTES : 0);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1221 # else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1222 return -1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1223 # endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1224 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1225
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1226 /*
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1227 * Decrypt "from[len]" into "to[len]".
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1228 * "from" and "to" can be equal to encrypt in place.
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1229 */
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1230 static long
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1231 crypt_sodium_buffer_decode(
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1232 cryptstate_T *state UNUSED,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1233 char_u *from UNUSED,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1234 size_t len UNUSED,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1235 char_u **buf_out UNUSED,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1236 int last UNUSED)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1237 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1238 # ifdef FEAT_SODIUM
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1239 // crypto_box_SEEDBYTES == crypto_secretstream_xchacha20poly1305_KEYBYTES
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1240 sodium_state_T *sod_st = state->method_state;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1241 unsigned char tag;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1242 unsigned long long out_len;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1243
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1244 if (sod_st->count == 0
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1245 && state->method_nr == CRYPT_M_SOD
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1246 && len > WRITEBUFSIZE
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1247 + crypto_secretstream_xchacha20poly1305_HEADERBYTES
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1248 + crypto_secretstream_xchacha20poly1305_ABYTES)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1249 len -= cryptmethods[CRYPT_M_SOD2].add_len;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1250
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1251 *buf_out = alloc_clear(len);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1252 if (*buf_out == NULL)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1253 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1254 emsg(_(e_libsodium_cannot_allocate_buffer));
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1255 return -1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1256 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1257
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1258 if (sod_st->count == 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1259 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1260 if (crypto_secretstream_xchacha20poly1305_init_pull(&sod_st->state,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1261 from, sod_st->key) != 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1262 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1263 emsg(_(e_libsodium_decryption_failed_header_incomplete));
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1264 return -1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1265 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1266 from += crypto_secretstream_xchacha20poly1305_HEADERBYTES;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1267 len -= crypto_secretstream_xchacha20poly1305_HEADERBYTES;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1268 sod_st->count++;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1269 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1270 if (crypto_secretstream_xchacha20poly1305_pull(&sod_st->state,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1271 *buf_out, &out_len, &tag, from, len, NULL, 0) != 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1272 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1273 emsg(_(e_libsodium_decryption_failed));
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1274 return -1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1275 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1276
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1277 if (tag == crypto_secretstream_xchacha20poly1305_TAG_FINAL && !last)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1278 emsg(_(e_libsodium_decryption_failed_premature));
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1279 return (long) out_len;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1280 # else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1281 return -1;
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1282 # endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1283 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1284
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1285 # if defined(FEAT_SODIUM) \|\| defined(PROTO)
32677 4091ae33b9ec patch 9.0.1669: Crash syncing swapfile in new buffer when using sodium crypt Bram Moolenaar <Bram@vim.org> parents: 32670 diff changeset	1286 void
4091ae33b9ec patch 9.0.1669: Crash syncing swapfile in new buffer when using sodium crypt Bram Moolenaar <Bram@vim.org> parents: 32670 diff changeset	1287 crypt_sodium_lock_key(char_u *key)
4091ae33b9ec patch 9.0.1669: Crash syncing swapfile in new buffer when using sodium crypt Bram Moolenaar <Bram@vim.org> parents: 32670 diff changeset	1288 {
4091ae33b9ec patch 9.0.1669: Crash syncing swapfile in new buffer when using sodium crypt Bram Moolenaar <Bram@vim.org> parents: 32670 diff changeset	1289 if (sodium_init() >= 0)
4091ae33b9ec patch 9.0.1669: Crash syncing swapfile in new buffer when using sodium crypt Bram Moolenaar <Bram@vim.org> parents: 32670 diff changeset	1290 sodium_mlock(key, STRLEN(key));
4091ae33b9ec patch 9.0.1669: Crash syncing swapfile in new buffer when using sodium crypt Bram Moolenaar <Bram@vim.org> parents: 32670 diff changeset	1291 }
4091ae33b9ec patch 9.0.1669: Crash syncing swapfile in new buffer when using sodium crypt Bram Moolenaar <Bram@vim.org> parents: 32670 diff changeset	1292
32670 695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1293 int
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1294 crypt_sodium_munlock(void *const addr, const size_t len)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1295 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1296 return sodium_munlock(addr, len);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1297 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1298
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1299 void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1300 crypt_sodium_randombytes_buf(void *const buf, const size_t size)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1301 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1302 randombytes_buf(buf, size);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1303 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1304
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1305 int
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1306 crypt_sodium_init(void)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1307 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1308 return sodium_init();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1309 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1310
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1311 uint32_t
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1312 crypt_sodium_randombytes_random(void)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1313 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1314 return randombytes_random();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1315 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1316
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1317 #if defined(FEAT_EVAL) \|\| defined(PROTO)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1318 static void
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1319 crypt_sodium_report_hash_params(
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1320 unsigned long long opslimit,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1321 unsigned long long ops_def,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1322 size_t memlimit,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1323 size_t mem_def,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1324 int alg,
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1325 int alg_def)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1326 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1327 if (p_verbose > 0)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1328 {
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1329 verbose_enter();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1330 if (opslimit != ops_def)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1331 smsg(_("xchacha20v2: using custom opslimit \"%llu\" for Key derivation."), opslimit);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1332 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1333 smsg(_("xchacha20v2: using default opslimit \"%llu\" for Key derivation."), opslimit);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1334 if (memlimit != mem_def)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1335 smsg(_("xchacha20v2: using custom memlimit \"%lu\" for Key derivation."), (unsigned long)memlimit);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1336 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1337 smsg(_("xchacha20v2: using default memlimit \"%lu\" for Key derivation."), (unsigned long)memlimit);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1338 if (alg != alg_def)
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1339 smsg(_("xchacha20v2: using custom algorithm \"%d\" for Key derivation."), alg);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1340 else
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1341 smsg(_("xchacha20v2: using default algorithm \"%d\" for Key derivation."), alg);
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1342 verbose_leave();
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1343 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1344 }
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1345 #endif
32719 185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1346
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1347 static void
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1348 crypt_long_long_to_char(long long n, char_u *s)
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1349 {
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1350 int i;
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1351 for (i = 0; i < 8; i++)
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1352 {
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1353 s[i] = (char_u)(n & 0xff);
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1354 n = (unsigned)n >> 8;
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1355 }
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1356 }
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1357
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1358 static void
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1359 crypt_int_to_char(int n, char_u *s)
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1360 {
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1361 int i;
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1362 for (i = 0; i < 4; i++)
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1363 {
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1364 s[i] = (char_u)(n & 0xff);
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1365 n = (unsigned)n >> 8;
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1366 }
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1367 }
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1368
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1369 static long long
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1370 crypt_char_to_long_long(char_u *s)
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1371 {
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1372 unsigned long long retval = 0;
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1373 int i;
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1374 for (i = 7; i >= 0; i--)
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1375 {
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1376 if (i == 7)
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1377 retval = s[i];
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1378 else
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1379 retval \|= s[i];
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1380 if (i > 0)
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1381 retval <<= 8;
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1382 }
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1383 return retval;
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1384 }
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1385
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1386 static int
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1387 crypt_char_to_int(char_u *s)
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1388 {
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1389 int retval = 0;
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1390 int i;
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1391
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1392 for (i = 3; i >= 0; i--)
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1393 {
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1394 if (i == 3)
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1395 retval = s[i];
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1396 else
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1397 retval \|= s[i];
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1398 if (i > 0)
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1399 retval <<= 8;
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1400 }
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1401 return retval;
185f2a160d5d patch 9.0.1682: sodium encryption is not portable Christian Brabandt <cb@256bit.org> parents: 32677 diff changeset	1402 }
32670 695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1403 # endif
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1404
695b50472e85 Fix line endings issue Christian Brabandt <cb@256bit.org> parents: 32669 diff changeset	1405 #endif // FEAT_CRYPT

Mercurial > vim

annotate src/crypt.c @ 33713:9aa03e12b2b5 v9.0.2090