diff options
Diffstat (limited to 'src/rps/rps-test_util.c')
-rw-r--r-- | src/rps/rps-test_util.c | 174 |
1 files changed, 163 insertions, 11 deletions
diff --git a/src/rps/rps-test_util.c b/src/rps/rps-test_util.c index 869170a8a..9a1dfe0d8 100644 --- a/src/rps/rps-test_util.c +++ b/src/rps/rps-test_util.c | |||
@@ -2,20 +2,18 @@ | |||
2 | This file is part of GNUnet. | 2 | This file is part of GNUnet. |
3 | Copyright (C) | 3 | Copyright (C) |
4 | 4 | ||
5 | GNUnet is free software; you can redistribute it and/or modify | 5 | GNUnet is free software: you can redistribute it and/or modify it |
6 | it under the terms of the GNU General Public License as published | 6 | under the terms of the GNU Affero General Public License as published |
7 | by the Free Software Foundation; either version 3, or (at your | 7 | by the Free Software Foundation, either version 3 of the License, |
8 | option) any later version. | 8 | or (at your option) any later version. |
9 | 9 | ||
10 | GNUnet is distributed in the hope that it will be useful, but | 10 | GNUnet is distributed in the hope that it will be useful, but |
11 | WITHOUT ANY WARRANTY; without even the implied warranty of | 11 | WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
13 | General Public License for more details. | 13 | Affero General Public License for more details. |
14 | 14 | ||
15 | You should have received a copy of the GNU General Public License | 15 | You should have received a copy of the GNU Affero General Public License |
16 | along with GNUnet; see the file COPYING. If not, write to the | 16 | along with this program. If not, see <http://www.gnu.org/licenses/>. |
17 | Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, | ||
18 | Boston, MA 02110-1301, USA. | ||
19 | */ | 17 | */ |
20 | 18 | ||
21 | /** | 19 | /** |
@@ -31,13 +29,26 @@ | |||
31 | 29 | ||
32 | #include <inttypes.h> | 30 | #include <inttypes.h> |
33 | 31 | ||
34 | #define LOG(kind, ...) GNUNET_log_from(kind,"rps-sampler",__VA_ARGS__) | 32 | #define LOG(kind, ...) GNUNET_log_from(kind,"rps-test_util",__VA_ARGS__) |
35 | 33 | ||
36 | #ifndef TO_FILE | 34 | #ifndef TO_FILE |
37 | #define TO_FILE | 35 | #define TO_FILE |
38 | #endif /* TO_FILE */ | 36 | #endif /* TO_FILE */ |
39 | 37 | ||
40 | #ifdef TO_FILE | 38 | #ifdef TO_FILE |
39 | |||
40 | #define min(x,y) ((x) > (y) ? (y) : (x)) | ||
41 | |||
42 | /** | ||
43 | * @brief buffer for storing the unaligned bits for the next write | ||
44 | */ | ||
45 | static char buf_unaligned; | ||
46 | |||
47 | /** | ||
48 | * @brief number of bits in unaligned buffer | ||
49 | */ | ||
50 | static unsigned num_bits_buf_unaligned; | ||
51 | |||
41 | void | 52 | void |
42 | to_file_ (const char *file_name, char *line) | 53 | to_file_ (const char *file_name, char *line) |
43 | { | 54 | { |
@@ -109,6 +120,147 @@ to_file_ (const char *file_name, char *line) | |||
109 | "Unable to close file\n"); | 120 | "Unable to close file\n"); |
110 | } | 121 | } |
111 | 122 | ||
123 | void | ||
124 | to_file_raw (const char *file_name, const char *buf, size_t size_buf) | ||
125 | { | ||
126 | struct GNUNET_DISK_FileHandle *f; | ||
127 | size_t size_written; | ||
128 | |||
129 | if (NULL == (f = GNUNET_DISK_file_open (file_name, | ||
130 | GNUNET_DISK_OPEN_APPEND | | ||
131 | GNUNET_DISK_OPEN_WRITE | | ||
132 | GNUNET_DISK_OPEN_CREATE, | ||
133 | GNUNET_DISK_PERM_USER_READ | | ||
134 | GNUNET_DISK_PERM_USER_WRITE | | ||
135 | GNUNET_DISK_PERM_GROUP_READ | | ||
136 | GNUNET_DISK_PERM_OTHER_READ))) | ||
137 | { | ||
138 | LOG (GNUNET_ERROR_TYPE_WARNING, | ||
139 | "Not able to open file %s\n", | ||
140 | file_name); | ||
141 | return; | ||
142 | } | ||
143 | |||
144 | size_written = GNUNET_DISK_file_write (f, buf, size_buf); | ||
145 | if (size_buf != size_written) | ||
146 | { | ||
147 | LOG (GNUNET_ERROR_TYPE_WARNING, | ||
148 | "Unable to write to file! (Size: %u, size_written: %u)\n", | ||
149 | size_buf, | ||
150 | size_written); | ||
151 | |||
152 | if (GNUNET_YES != GNUNET_DISK_file_close (f)) | ||
153 | LOG (GNUNET_ERROR_TYPE_WARNING, | ||
154 | "Unable to close file\n"); | ||
155 | |||
156 | return; | ||
157 | } | ||
158 | } | ||
159 | |||
160 | void | ||
161 | to_file_raw_unaligned (const char *file_name, | ||
162 | const char *buf, | ||
163 | size_t size_buf, | ||
164 | unsigned bits_needed) | ||
165 | { | ||
166 | // TODO endianness! | ||
167 | GNUNET_assert (size_buf >= (bits_needed/8)); | ||
168 | //if (0 == num_bits_buf_unaligned) | ||
169 | //{ | ||
170 | // if (0 == (bits_needed % 8)) | ||
171 | // { | ||
172 | // to_file_raw (file_name, buf, size_buf); | ||
173 | // return; | ||
174 | // } | ||
175 | // to_file_raw (file_name, buf, size_buf - 1); | ||
176 | // buf_unaligned = buf[size_buf - 1]; | ||
177 | // num_bits_buf_unaligned = bits_needed % 8; | ||
178 | // return; | ||
179 | //} | ||
180 | |||
181 | char buf_write[size_buf + 1]; | ||
182 | const unsigned bytes_iter = (0 != bits_needed % 8? | ||
183 | (bits_needed/8)+1: | ||
184 | bits_needed/8); | ||
185 | // TODO what if no iteration happens? | ||
186 | unsigned size_buf_write = 0; | ||
187 | buf_write[0] = buf_unaligned; | ||
188 | /* Iterate over input bytes */ | ||
189 | for (unsigned i = 0; i < bytes_iter; i++) | ||
190 | { | ||
191 | /* Number of bits needed in this iteration - 8 for all except last iter */ | ||
192 | unsigned num_bits_needed_iter; | ||
193 | /* Mask for bits to actually use */ | ||
194 | unsigned mask_bits_needed_iter; | ||
195 | char byte_input; | ||
196 | /* Number of bits needed to align unaligned byte */ | ||
197 | unsigned num_bits_to_align; | ||
198 | /* Number of bits that are to be moved */ | ||
199 | unsigned num_bits_to_move; | ||
200 | /* Mask for bytes to be moved */ | ||
201 | char mask_input_to_move; | ||
202 | /* Masked bits to be moved */ | ||
203 | char bits_to_move; | ||
204 | /* The amount of bits needed to fit the bits to shift to the nearest spot */ | ||
205 | unsigned distance_shift_bits; | ||
206 | /* Shifted bits on the move */ | ||
207 | char bits_moving; | ||
208 | /* (unaligned) byte being filled with bits */ | ||
209 | char byte_to_fill; | ||
210 | /* mask for needed bits of the input byte that have not been moved */ | ||
211 | char mask_input_leftover; | ||
212 | /* needed bits of the input byte that have not been moved */ | ||
213 | char byte_input_leftover; | ||
214 | unsigned num_bits_leftover; | ||
215 | unsigned num_bits_discard; | ||
216 | char byte_unaligned_new; | ||
217 | |||
218 | if ( (bits_needed - (i * 8)) <= 8) | ||
219 | { | ||
220 | /* last iteration */ | ||
221 | num_bits_needed_iter = bits_needed - (i * 8); | ||
222 | } | ||
223 | else | ||
224 | { | ||
225 | num_bits_needed_iter = 8; | ||
226 | } | ||
227 | mask_bits_needed_iter = ((char) 1 << num_bits_needed_iter) - 1; | ||
228 | byte_input = buf[i]; | ||
229 | byte_input &= mask_bits_needed_iter; | ||
230 | num_bits_to_align = 8 - num_bits_buf_unaligned; | ||
231 | num_bits_to_move = min (num_bits_to_align, num_bits_needed_iter); | ||
232 | mask_input_to_move = ((char) 1 << num_bits_to_move) - 1; | ||
233 | bits_to_move = byte_input & mask_input_to_move; | ||
234 | distance_shift_bits = num_bits_buf_unaligned; | ||
235 | bits_moving = bits_to_move << distance_shift_bits; | ||
236 | byte_to_fill = buf_unaligned | bits_moving; | ||
237 | if (num_bits_buf_unaligned + num_bits_needed_iter > 8) | ||
238 | { | ||
239 | /* buf_unaligned was aligned by filling | ||
240 | * -> can be written to storage */ | ||
241 | buf_write[i] = byte_to_fill; | ||
242 | size_buf_write++; | ||
243 | |||
244 | /* store the leftover, unaligned bits in buffer */ | ||
245 | mask_input_leftover = mask_bits_needed_iter & (~ mask_input_to_move); | ||
246 | byte_input_leftover = byte_input & mask_input_leftover; | ||
247 | num_bits_leftover = num_bits_needed_iter - num_bits_to_move; | ||
248 | num_bits_discard = 8 - num_bits_needed_iter; | ||
249 | byte_unaligned_new = byte_input_leftover >> num_bits_to_move; | ||
250 | buf_unaligned = byte_unaligned_new; | ||
251 | num_bits_buf_unaligned = num_bits_leftover % 8; | ||
252 | } | ||
253 | else | ||
254 | { | ||
255 | /* unaligned buffer still unaligned but 'fuller' */ | ||
256 | buf_unaligned = byte_to_fill; | ||
257 | num_bits_buf_unaligned = (num_bits_buf_unaligned + bits_needed) % 8; | ||
258 | } | ||
259 | } | ||
260 | to_file_raw (file_name, buf_write, size_buf_write); | ||
261 | LOG (GNUNET_ERROR_TYPE_DEBUG, "\n"); | ||
262 | } | ||
263 | |||
112 | char * | 264 | char * |
113 | auth_key_to_string (struct GNUNET_CRYPTO_AuthKey auth_key) | 265 | auth_key_to_string (struct GNUNET_CRYPTO_AuthKey auth_key) |
114 | { | 266 | { |