annotate src/crypt.c @ 32721:94f4a488412e v9.0.1683

Updated runtime files Commit: https://github.com/vim/vim/commit/6efb1980336ff324e9c57a4e282530b952fca816 Author: Christian Brabandt <cb@256bit.org> Date: Thu Aug 10 05:44:25 2023 +0200 Updated runtime files This is a collection of various PRs from github that all require a minor patch number: 1) https://github.com/vim/vim/pull/12612 Do not conflate dictionary key with end of block 2) https://github.com/vim/vim/pull/12729: When saving and restoring 'undolevels', the constructs `&undolevels` and `:set undolevels` are problematic. The construct `&undolevels` reads an unpredictable value; it will be the local option value (if one has been set), or the global option value (otherwise), making it unsuitable for saving a value for later restoration. Similarly, if a local option value has been set for 'undolevels', temporarily modifying the option via `:set undolevels` changes the local value as well as the global value, requiring extra work to restore both values. Saving and restoring the option value in one step via the construct `:let &undolevels = &undolevels` appears to make no changes to the 'undolevels' option, but if a local option has been set to a different value than the global option, it has the unintended effect of changing the global 'undolevels' value to the local value. Update the documentation to explain these issues and recommend explicit use of global and local option values when saving and restoring. Update some unit tests to use `g:undolevels`. 3) https://github.com/vim/vim/pull/12702: Problem: Pip requirements files are not recognized. Solution: Add a pattern to match pip requirements files. 4) https://github.com/vim/vim/pull/12688: Add indent file and tests for ABB Rapid 5) https://github.com/vim/vim/pull/12668: Use Lua 5.1 numeric escapes in tests and add to CI Only Lua 5.2+ and LuaJIT understand hexadecimal escapes in strings. Lua 5.1 only supports decimal escapes: > A character in a string can also be specified by its numerical value > using the escape sequence \ddd, where ddd is a sequence of up to three > decimal digits. (Note that if a numerical escape is to be followed by a > digit, it must be expressed using exactly three digits.) Strings in Lua > can contain any 8-bit value, including embedded zeros, which can be > specified as '\0'. To make sure this works with Lua 5.4 and Lua 5.1 change the Vim CI to run with Lua 5.1 as well as Lua 5.4 6) https://github.com/vim/vim/pull/12631: Add hurl filetype detection 7) https://github.com/vim/vim/pull/12573: Problem: Files for haskell persistent library are not recognized Solution: Add pattern persistentmodels for haskell persistent library closes: #12612 closes: #12729 closes: #12702 closes: #12688 closes: #12668 closes: #12631 closes: #12573 Co-authored-by: lacygoill <lacygoill@lacygoill.me> Co-authored-by: Michael Henry <drmikehenry@drmikehenry.com> Co-authored-by: ObserverOfTime <chronobserver@disroot.org> Co-authored-by: KnoP-01 <knosowski@graeffrobotics.de> Co-authored-by: James McCoy <jamessan@jamessan.com> Co-authored-by: Jacob Pfeifer <jacob@pfeifer.dev> Co-authored-by: Borys Lykah <lykahb@fastmail.com>
author Christian Brabandt <cb@256bit.org>
date Thu, 10 Aug 2023 06:30:06 +0200
parents 185f2a160d5d
children cb88e5c589d0
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rev   line source
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1 /* vi:set ts=8 sts=4 sw=4 noet:
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2 *
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3 * VIM - Vi IMproved by Bram Moolenaar
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4 *
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5 * Do ":help uganda" in Vim to read copying and usage conditions.
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6 * Do ":help credits" in Vim to see a list of people who contributed.
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7 * See README.txt for an overview of the Vim source code.
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8 */
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9
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10 /*
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11 * crypt.c: Generic encryption support.
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12 */
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13 #include "vim.h"
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14
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15 #if defined(FEAT_CRYPT) || defined(PROTO)
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16 /*
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17 * Optional encryption support.
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18 * Mohsin Ahmed, mosh@sasi.com, 1998-09-24
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19 * Based on zip/crypt sources.
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20 * Refactored by David Leadbeater, 2014.
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21 *
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22 * NOTE FOR USA: Since 2000 exporting this code from the USA is allowed to
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23 * most countries. There are a few exceptions, but that still should not be a
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24 * problem since this code was originally created in Europe and India.
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25 *
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26 * Blowfish addition originally made by Mohsin Ahmed,
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27 * http://www.cs.albany.edu/~mosh 2010-03-14
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28 * Based on blowfish by Bruce Schneier (http://www.schneier.com/blowfish.html)
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29 * and sha256 by Christophe Devine.
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30 */
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31
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32 typedef struct {
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33 char *name; // encryption name as used in 'cryptmethod'
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34 char *magic; // magic bytes stored in file header
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35 int salt_len; // length of salt, or 0 when not using salt
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36 int seed_len; // length of seed, or 0 when not using seed
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37 int add_len; // additional length in the header needed for storing
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38 // custom data
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39 #ifdef CRYPT_NOT_INPLACE
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40 int works_inplace; // encryption/decryption can be done in-place
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41 #endif
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42 int whole_undofile; // whole undo file is encrypted
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43
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44 // Optional function pointer for a self-test.
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45 int (*self_test_fn)(void);
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46
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47 // Function pointer for initializing encryption/decryption.
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48 int (* init_fn)(cryptstate_T *state, char_u *key, crypt_arg_T *arg);
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49
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50 // Function pointers for encoding/decoding from one buffer into another.
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51 // Optional, however, these or the _buffer ones should be configured.
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52 void (*encode_fn)(cryptstate_T *state, char_u *from, size_t len,
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53 char_u *to, int last);
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54 void (*decode_fn)(cryptstate_T *state, char_u *from, size_t len,
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55 char_u *to, int last);
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56
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57 // Function pointers for encoding and decoding, can buffer data if needed.
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58 // Optional (however, these or the above should be configured).
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59 long (*encode_buffer_fn)(cryptstate_T *state, char_u *from, size_t len,
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60 char_u **newptr, int last);
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61 long (*decode_buffer_fn)(cryptstate_T *state, char_u *from, size_t len,
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62 char_u **newptr, int last);
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63
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64 // Function pointers for in-place encoding and decoding, used for
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65 // crypt_*_inplace(). "from" and "to" arguments will be equal.
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66 // These may be the same as decode_fn and encode_fn above, however an
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67 // algorithm may implement them in a way that is not interchangeable with
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68 // the crypt_(en|de)code() interface (for example because it wishes to add
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69 // padding to files).
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70 // This method is used for swap and undo files which have a rigid format.
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71 void (*encode_inplace_fn)(cryptstate_T *state, char_u *p1, size_t len,
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72 char_u *p2, int last);
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73 void (*decode_inplace_fn)(cryptstate_T *state, char_u *p1, size_t len,
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74 char_u *p2, int last);
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75 } cryptmethod_T;
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76
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77 static int crypt_sodium_init_(cryptstate_T *state, char_u *key, crypt_arg_T *arg);
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78 static long crypt_sodium_buffer_decode(cryptstate_T *state, char_u *from, size_t len, char_u **buf_out, int last);
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79 static long crypt_sodium_buffer_encode(cryptstate_T *state, char_u *from, size_t len, char_u **buf_out, int last);
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80 # if defined(FEAT_SODIUM) || defined(PROTO)
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81 static void crypt_long_long_to_char(long long n, char_u *s);
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82 static void crypt_int_to_char(int n, char_u *s);
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83 static long long crypt_char_to_long_long(char_u *s);
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84 static int crypt_char_to_int(char_u *s);
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85 #endif
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86 #if defined(FEAT_EVAL) && defined(FEAT_SODIUM)
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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);
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88 #endif
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89
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90 // index is method_nr of cryptstate_T, CRYPT_M_*
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91 static cryptmethod_T cryptmethods[CRYPT_M_COUNT] = {
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92 // PK_Zip; very weak
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93 {
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94 "zip",
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95 "VimCrypt~01!",
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96 0,
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97 0,
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98 0,
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99 #ifdef CRYPT_NOT_INPLACE
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100 TRUE,
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101 #endif
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102 FALSE,
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103 NULL,
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104 crypt_zip_init,
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105 crypt_zip_encode, crypt_zip_decode,
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106 NULL, NULL,
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107 crypt_zip_encode, crypt_zip_decode,
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108 },
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109
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110 // Blowfish/CFB + SHA-256 custom key derivation; implementation issues.
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111 {
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112 "blowfish",
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113 "VimCrypt~02!",
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114 8,
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115 8,
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116 0,
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117 #ifdef CRYPT_NOT_INPLACE
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118 TRUE,
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119 #endif
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120 FALSE,
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121 blowfish_self_test,
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122 crypt_blowfish_init,
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123 crypt_blowfish_encode, crypt_blowfish_decode,
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124 NULL, NULL,
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125 crypt_blowfish_encode, crypt_blowfish_decode,
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126 },
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127
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128 // Blowfish/CFB + SHA-256 custom key derivation; fixed.
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129 {
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130 "blowfish2",
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131 "VimCrypt~03!",
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132 8,
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133 8,
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134 0,
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135 #ifdef CRYPT_NOT_INPLACE
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136 TRUE,
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137 #endif
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138 TRUE,
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139 blowfish_self_test,
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140 crypt_blowfish_init,
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141 crypt_blowfish_encode, crypt_blowfish_decode,
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142 NULL, NULL,
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143 crypt_blowfish_encode, crypt_blowfish_decode,
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144 },
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145
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146 // XChaCha20 using libsodium; implementation issues
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147 {
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148 "xchacha20",
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149 "VimCrypt~04!",
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150 #ifdef FEAT_SODIUM
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151 crypto_pwhash_argon2id_SALTBYTES, // 16
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152 #else
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153 16,
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154 #endif
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155 8,
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156 0,
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157 #ifdef CRYPT_NOT_INPLACE
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158 FALSE,
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159 #endif
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160 FALSE,
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161 NULL,
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162 crypt_sodium_init_,
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163 NULL, NULL,
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164 crypt_sodium_buffer_encode, crypt_sodium_buffer_decode,
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165 NULL, NULL,
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166 },
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167 // XChaCha20 using libsodium; stores parameters in header
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168 {
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169 "xchacha20v2",
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170 "VimCrypt~05!",
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171 #ifdef FEAT_SODIUM
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172 crypto_pwhash_argon2id_SALTBYTES, // 16
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173 #else
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174 16,
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175 #endif
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176 8,
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177 // sizeof(crypto_pwhash_OPSLIMIT_INTERACTIVE + crypto_pwhash_MEMLIMIT_INTERACTIVE + crypto_pwhash_ALG_DEFAULT)
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178 20,
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179 #ifdef CRYPT_NOT_INPLACE
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180 FALSE,
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181 #endif
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182 FALSE,
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183 NULL,
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184 crypt_sodium_init_,
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185 NULL, NULL,
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186 crypt_sodium_buffer_encode, crypt_sodium_buffer_decode,
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187 NULL, NULL,
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188 },
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189
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190 // NOTE: when adding a new method, use some random bytes for the magic key,
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191 // to avoid that a text file is recognized as encrypted.
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192 };
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193
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194 #if defined(FEAT_SODIUM) || defined(PROTO)
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195 typedef struct {
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196 size_t count;
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197 unsigned char key[crypto_box_SEEDBYTES];
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198 // 32, same as crypto_secretstream_xchacha20poly1305_KEYBYTES
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199 crypto_secretstream_xchacha20poly1305_state
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200 state;
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201 } sodium_state_T;
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202
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203
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204 # ifdef DYNAMIC_SODIUM
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205 # ifdef MSWIN
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206 # define SODIUM_PROC FARPROC
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207 # define load_dll vimLoadLib
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208 # define symbol_from_dll GetProcAddress
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209 # define close_dll FreeLibrary
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210 # define load_dll_error GetWin32Error
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211 # else
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212 # error Dynamic loading of libsodium is not supported for now.
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213 //# define HINSTANCE void*
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214 //# define SODIUM_PROC void*
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215 //# define load_dll(n) dlopen((n), RTLD_LAZY|RTLD_GLOBAL)
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216 //# define symbol_from_dll dlsym
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217 //# define close_dll dlclose
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218 //# define load_dll_error dlerror
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219 # endif
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220
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221 # define sodium_init load_sodium
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222 # define sodium_free dll_sodium_free
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223 # define sodium_malloc dll_sodium_malloc
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224 # define sodium_memzero dll_sodium_memzero
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225 # define sodium_mlock dll_sodium_mlock
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226 # define sodium_munlock dll_sodium_munlock
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227 # define crypto_secretstream_xchacha20poly1305_init_push \
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228 dll_crypto_secretstream_xchacha20poly1305_init_push
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229 # define crypto_secretstream_xchacha20poly1305_push \
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230 dll_crypto_secretstream_xchacha20poly1305_push
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231 # define crypto_secretstream_xchacha20poly1305_init_pull \
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232 dll_crypto_secretstream_xchacha20poly1305_init_pull
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233 # define crypto_secretstream_xchacha20poly1305_pull \
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234 dll_crypto_secretstream_xchacha20poly1305_pull
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235 # define crypto_pwhash dll_crypto_pwhash
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236 # define randombytes_buf dll_randombytes_buf
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237 # define randombytes_random dll_randombytes_random
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238
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239 static int (*dll_sodium_init)(void) = NULL;
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240 static void (*dll_sodium_free)(void *) = NULL;
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241 static void *(*dll_sodium_malloc)(const size_t) = NULL;
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242 static void (*dll_sodium_memzero)(void * const, const size_t) = NULL;
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243 static int (*dll_sodium_mlock)(void * const, const size_t) = NULL;
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244 static int (*dll_sodium_munlock)(void * const, const size_t) = NULL;
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245 static int (*dll_crypto_secretstream_xchacha20poly1305_init_push)
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246 (crypto_secretstream_xchacha20poly1305_state *state,
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247 unsigned char [],
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248 const unsigned char []) = NULL;
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249 static int (*dll_crypto_secretstream_xchacha20poly1305_push)
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250 (crypto_secretstream_xchacha20poly1305_state *state,
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251 unsigned char *c, unsigned long long *clen_p,
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252 const unsigned char *m, unsigned long long mlen,
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253 const unsigned char *ad, unsigned long long adlen, unsigned char tag)
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254 = NULL;
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255 static int (*dll_crypto_secretstream_xchacha20poly1305_init_pull)
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256 (crypto_secretstream_xchacha20poly1305_state *state,
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257 const unsigned char [],
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258 const unsigned char []) = NULL;
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259 static int (*dll_crypto_secretstream_xchacha20poly1305_pull)
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260 (crypto_secretstream_xchacha20poly1305_state *state,
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261 unsigned char *m, unsigned long long *mlen_p, unsigned char *tag_p,
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262 const unsigned char *c, unsigned long long clen,
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263 const unsigned char *ad, unsigned long long adlen) = NULL;
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264 static int (*dll_crypto_pwhash)(unsigned char * const out,
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265 unsigned long long outlen,
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266 const char * const passwd, unsigned long long passwdlen,
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267 const unsigned char * const salt,
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268 unsigned long long opslimit, size_t memlimit, int alg)
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269 = NULL;
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270 static void (*dll_randombytes_buf)(void * const buf, const size_t size);
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271 static uint32_t (*dll_randombytes_random)(void);
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272
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273 static struct {
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274 const char *name;
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275 SODIUM_PROC *ptr;
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276 } sodium_funcname_table[] = {
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277 {"sodium_init", (SODIUM_PROC*)&dll_sodium_init},
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278 {"sodium_free", (SODIUM_PROC*)&dll_sodium_free},
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279 {"sodium_malloc", (SODIUM_PROC*)&dll_sodium_malloc},
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280 {"sodium_memzero", (SODIUM_PROC*)&dll_sodium_memzero},
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281 {"sodium_mlock", (SODIUM_PROC*)&dll_sodium_mlock},
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282 {"sodium_munlock", (SODIUM_PROC*)&dll_sodium_munlock},
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283 {"crypto_secretstream_xchacha20poly1305_init_push", (SODIUM_PROC*)&dll_crypto_secretstream_xchacha20poly1305_init_push},
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284 {"crypto_secretstream_xchacha20poly1305_push", (SODIUM_PROC*)&dll_crypto_secretstream_xchacha20poly1305_push},
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285 {"crypto_secretstream_xchacha20poly1305_init_pull", (SODIUM_PROC*)&dll_crypto_secretstream_xchacha20poly1305_init_pull},
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286 {"crypto_secretstream_xchacha20poly1305_pull", (SODIUM_PROC*)&dll_crypto_secretstream_xchacha20poly1305_pull},
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287 {"crypto_pwhash", (SODIUM_PROC*)&dll_crypto_pwhash},
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288 {"randombytes_buf", (SODIUM_PROC*)&dll_randombytes_buf},
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289 {"randombytes_random", (SODIUM_PROC*)&dll_randombytes_random},
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290 {NULL, NULL}
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291 };
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292
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293 static int
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294 sodium_runtime_link_init(int verbose)
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295 {
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296 static HINSTANCE hsodium = NULL;
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297 const char *libname = DYNAMIC_SODIUM_DLL;
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298 int i;
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299
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300 if (hsodium != NULL)
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301 return OK;
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302
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303 hsodium = load_dll(libname);
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304 if (hsodium == NULL)
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305 {
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306 if (verbose)
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307 semsg(_(e_could_not_load_library_str_str), libname, load_dll_error());
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308 return FAIL;
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309 }
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310
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311 for (i = 0; sodium_funcname_table[i].ptr; ++i)
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312 {
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313 if ((*sodium_funcname_table[i].ptr = symbol_from_dll(hsodium,
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314 sodium_funcname_table[i].name)) == NULL)
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315 {
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316 close_dll(hsodium);
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317 hsodium = NULL;
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318 if (verbose)
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319 semsg(_(e_could_not_load_library_function_str), sodium_funcname_table[i].name);
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320 return FAIL;
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321 }
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322 }
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323 return OK;
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324 }
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325
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326 static int
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327 load_sodium(void)
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328 {
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329 if (sodium_runtime_link_init(TRUE) == FAIL)
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330 return -1;
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331 return dll_sodium_init();
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332 }
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333 # endif
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334
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335 # if defined(DYNAMIC_SODIUM) || defined(PROTO)
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336 int
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337 sodium_enabled(int verbose)
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338 {
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339 return sodium_runtime_link_init(verbose) == OK;
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340 }
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341 # endif
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342 #endif
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343
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344 #define CRYPT_MAGIC_LEN 12 // cannot change
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345 static char crypt_magic_head[] = "VimCrypt~";
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346
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347 /*
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348 * Return int value for crypt method name.
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349 * 0 for "zip", the old method. Also for any non-valid value.
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350 * 1 for "blowfish".
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351 * 2 for "blowfish2".
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352 */
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353 int
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354 crypt_method_nr_from_name(char_u *name)
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355 {
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356 int i;
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357
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358 for (i = 0; i < CRYPT_M_COUNT; ++i)
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359 if (STRCMP(name, cryptmethods[i].name) == 0)
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360 return i;
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361 return 0;
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362 }
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363
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364 /*
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365 * Get the crypt method used for a file from "ptr[len]", the magic text at the
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366 * start of the file.
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367 * Returns -1 when no encryption used.
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368 */
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369 int
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370 crypt_method_nr_from_magic(char *ptr, int len)
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371 {
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diff changeset
372 int i;
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373
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374 if (len < CRYPT_MAGIC_LEN)
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375 return -1;
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376
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377 for (i = 0; i < CRYPT_M_COUNT; i++)
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378 if (memcmp(ptr, cryptmethods[i].magic, CRYPT_MAGIC_LEN) == 0)
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379 return i;
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380
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381 i = (int)STRLEN(crypt_magic_head);
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382 if (len >= i && memcmp(ptr, crypt_magic_head, i) == 0)
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diff changeset
383 emsg(_(e_file_is_encrypted_with_unknown_method));
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384
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385 return -1;
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386 }
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387
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diff changeset
388 #ifdef CRYPT_NOT_INPLACE
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389 /*
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390 * Return TRUE if the crypt method for "method_nr" can be done in-place.
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391 */
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392 int
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393 crypt_works_inplace(cryptstate_T *state)
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394 {
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395 return cryptmethods[state->method_nr].works_inplace;
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396 }
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397 #endif
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398
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399 /*
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400 * Get the crypt method for buffer "buf" as a number.
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401 */
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402 int
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403 crypt_get_method_nr(buf_T *buf)
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404 {
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405 return crypt_method_nr_from_name(*buf->b_p_cm == NUL ? p_cm : buf->b_p_cm);
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406 }
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diff changeset
407
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408 /*
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409 * Returns True for Sodium Encryption.
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410 */
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411 int
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412 crypt_method_is_sodium(int method)
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413 {
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414 return method == CRYPT_M_SOD || method == CRYPT_M_SOD2;
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415 }
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416
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diff changeset
417 /*
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418 * Return TRUE when the buffer uses an encryption method that encrypts the
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419 * whole undo file, not only the text.
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420 */
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421 int
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422 crypt_whole_undofile(int method_nr)
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423 {
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424 return cryptmethods[method_nr].whole_undofile;
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425 }
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426
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diff changeset
427 /*
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428 * Get crypt method specific length of the file header in bytes.
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diff changeset
429 */
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diff changeset
430 int
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diff changeset
431 crypt_get_header_len(int method_nr)
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432 {
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433 return CRYPT_MAGIC_LEN
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434 + cryptmethods[method_nr].salt_len
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diff changeset
435 + cryptmethods[method_nr].seed_len
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diff changeset
436 + cryptmethods[method_nr].add_len;
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diff changeset
437 }
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diff changeset
438
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diff changeset
439
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diff changeset
440 #if defined(FEAT_SODIUM) || defined(PROTO)
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diff changeset
441 /*
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442 * Get maximum crypt method specific length of the file header in bytes.
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443 */
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444 int
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diff changeset
445 crypt_get_max_header_len(void)
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diff changeset
446 {
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diff changeset
447 int i;
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diff changeset
448 int max = 0;
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diff changeset
449 int temp = 0;
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diff changeset
450
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diff changeset
451 for (i = 0; i < CRYPT_M_COUNT; ++i)
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diff changeset
452 {
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diff changeset
453 temp = crypt_get_header_len(i);
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diff changeset
454 if (temp > max)
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diff changeset
455 max = temp;
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diff changeset
456 }
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diff changeset
457 return max;
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diff changeset
458 }
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diff changeset
459 #endif
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diff changeset
460
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parents: 32669
diff changeset
461 /*
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diff changeset
462 * Set the crypt method for buffer "buf" to "method_nr" using the int value as
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diff changeset
463 * returned by crypt_method_nr_from_name().
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parents: 32669
diff changeset
464 */
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diff changeset
465 void
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diff changeset
466 crypt_set_cm_option(buf_T *buf, int method_nr)
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diff changeset
467 {
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parents: 32669
diff changeset
468 free_string_option(buf->b_p_cm);
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diff changeset
469 buf->b_p_cm = vim_strsave((char_u *)cryptmethods[method_nr].name);
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diff changeset
470 }
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parents: 32669
diff changeset
471
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parents: 32669
diff changeset
472 /*
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parents: 32669
diff changeset
473 * If the crypt method for the current buffer has a self-test, run it and
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diff changeset
474 * return OK/FAIL.
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parents: 32669
diff changeset
475 */
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parents: 32669
diff changeset
476 int
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parents: 32669
diff changeset
477 crypt_self_test(void)
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diff changeset
478 {
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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