GNUnet 0.21.1
Macros | Functions
regex.c File Reference
#include "platform.h"
#include "gnunet_util_lib.h"
Include dependency graph for regex.c:

Go to the source code of this file.

Macros

#define DOT   "(0|1|2|3|4|5|6|7|8|9|A|B|C|D|E|F)"
 'wildcard', matches all possible values (for HEX encoding). More...
 

Functions

void GNUNET_TUN_ipv4toregexsearch (const struct in_addr *ip, uint16_t port, char *rxstr)
 Create a regex in rxstr from the given ip and port. More...
 
void GNUNET_TUN_ipv6toregexsearch (const struct in6_addr *ipv6, uint16_t port, char *rxstr)
 Create a regex in rxstr from the given ipv6 and port. More...
 
static char * nibble_to_regex (uint8_t value, uint8_t mask)
 Convert the given 4-bit (!) number to a regex. More...
 
static char * num_to_regex (uint16_t value, uint16_t mask)
 Convert the given 16-bit number to a regex. More...
 
static int needs_parens (const char *arg)
 Do we need to put parents around the given argument? More...
 
static char * compute_policy (unsigned int start, unsigned int end, unsigned int step, const struct GNUNET_STRINGS_PortPolicy *pp)
 Compute port policy for the given range of port numbers. More...
 
static char * port_to_regex (const struct GNUNET_STRINGS_PortPolicy *pp)
 Convert a port policy to a regular expression. More...
 
static char * address_to_regex (const void *addr, const void *mask, size_t len)
 Convert an address (IPv4 or IPv6) to a regex. More...
 
static char * ipv4_to_regex (const struct GNUNET_STRINGS_IPv4NetworkPolicy *v4)
 Convert a single line of an IPv4 policy to a regular expression. More...
 
static char * ipv6_to_regex (const struct GNUNET_STRINGS_IPv6NetworkPolicy *v6)
 Convert a single line of an IPv4 policy to a regular expression. More...
 
char * GNUNET_TUN_ipv4policy2regex (const char *policy)
 Convert an exit policy to a regular expression. More...
 
char * GNUNET_TUN_ipv6policy2regex (const char *policy)
 Convert an exit policy to a regular expression. More...
 
void GNUNET_TUN_service_name_to_hash (const char *service_name, struct GNUNET_HashCode *hc)
 Hash the service name of a hosted service to the hash code that is used to identify the service on the network. More...
 
void GNUNET_TUN_compute_service_cadet_port (const struct GNUNET_HashCode *desc, uint16_t ip_port, struct GNUNET_HashCode *cadet_port)
 Compute the CADET port given a service descriptor (returned from GNUNET_TUN_service_name_to_hash) and a TCP/UDP port ip_port. More...
 

Macro Definition Documentation

◆ DOT

#define DOT   "(0|1|2|3|4|5|6|7|8|9|A|B|C|D|E|F)"

'wildcard', matches all possible values (for HEX encoding).

Definition at line 33 of file regex.c.

Function Documentation

◆ nibble_to_regex()

static char * nibble_to_regex ( uint8_t  value,
uint8_t  mask 
)
static

Convert the given 4-bit (!) number to a regex.

Parameters
valuethe value, only the lowest 4 bits will be looked at
maskwhich bits in value are wildcards (any value)?

Definition at line 75 of file regex.c.

77{
78 char *ret;
79
80 value &= mask;
81 switch (mask)
82 {
83 case 0:
84 return GNUNET_strdup (DOT);
85
86 case 8:
87 GNUNET_asprintf (&ret,
88 "(%X|%X|%X|%X|%X|%X|%X|%X)",
89 value,
90 value + 1,
91 value + 2,
92 value + 3,
93 value + 4,
94 value + 5,
95 value + 6,
96 value + 7);
97 return ret;
98
99 case 12:
100 GNUNET_asprintf (&ret,
101 "(%X|%X|%X|%X)",
102 value,
103 value + 1,
104 value + 2,
105 value + 3);
106 return ret;
107
108 case 14:
109 GNUNET_asprintf (&ret,
110 "(%X|%X)",
111 value,
112 value + 1);
113 return ret;
114
115 case 15:
116 GNUNET_asprintf (&ret,
117 "%X",
118 value);
119 return ret;
120
121 default:
122 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
123 _ ("Bad mask: %d\n"),
124 mask);
125 GNUNET_break (0);
126 return NULL;
127 }
128}
ret
static int ret
Final status code.
Definition: gnunet-arm.c:94
value
static char * value
Value of the record to add/remove.
Definition: gnunet-namestore.c:270
GNUNET_log
#define GNUNET_log(kind,...)
Definition: gnunet_common.h:562
GNUNET_break
#define GNUNET_break(cond)
Use this for internal assertion violations that are not fatal (can be handled) but should not occur.
Definition: gnunet_common.h:1018
GNUNET_ERROR_TYPE_WARNING
@ GNUNET_ERROR_TYPE_WARNING
Definition: gnunet_common.h:432
GNUNET_asprintf
int int GNUNET_asprintf(char **buf, const char *format,...) __attribute__((format(printf
Like asprintf, just portable.
GNUNET_strdup
#define GNUNET_strdup(a)
Wrapper around GNUNET_xstrdup_.
Definition: gnunet_common.h:1420
_
#define _(String)
GNU gettext support macro.
Definition: platform.h:178
DOT
#define DOT
'wildcard', matches all possible values (for HEX encoding).
Definition: regex.c:33

References _, DOT, GNUNET_asprintf(), GNUNET_break, GNUNET_ERROR_TYPE_WARNING, GNUNET_log, GNUNET_strdup, ret, and value.

Referenced by num_to_regex().

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◆ num_to_regex()

static char * num_to_regex ( uint16_t  value,
uint16_t  mask 
)
static

Convert the given 16-bit number to a regex.

Parameters
valuethe value
maskwhich bits in value are wildcards (any value)?

Definition at line 138 of file regex.c.

140{
141 const uint8_t *v = (const uint8_t *) &value;
142 const uint8_t *m = (const uint8_t *) &mask;
143 char *a;
144 char *b;
145 char *c;
146 char *d;
147 char *ret;
148
149 a = nibble_to_regex (v[0] >> 4, m[0] >> 4);
150 b = nibble_to_regex (v[0] & 15, m[0] & 15);
151 c = nibble_to_regex (v[1] >> 4, m[1] >> 4);
152 d = nibble_to_regex (v[1] & 15, m[1] & 15);
153 ret = NULL;
154 if ((NULL != a) &&
155 (NULL != b) &&
156 (NULL != c) &&
157 (NULL != d))
158 GNUNET_asprintf (&ret,
159 "%s%s%s%s",
160 a, b, c, d);
161 GNUNET_free (a);
162 GNUNET_free (b);
163 GNUNET_free (c);
164 GNUNET_free (d);
165 return ret;
166}
d
static mp_limb_t d[(((256)+GMP_NUMB_BITS - 1)/GMP_NUMB_BITS)]
Definition: crypto_elligator.c:192
m
static struct GNUNET_ARM_MonitorHandle * m
Monitor connection with ARM.
Definition: gnunet-arm.c:104
GNUNET_free
#define GNUNET_free(ptr)
Wrapper around free.
Definition: gnunet_common.h:1406
nibble_to_regex
static char * nibble_to_regex(uint8_t value, uint8_t mask)
Convert the given 4-bit (!) number to a regex.
Definition: regex.c:75

References d, GNUNET_asprintf(), GNUNET_free, m, nibble_to_regex(), ret, and value.

Referenced by address_to_regex().

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◆ needs_parens()

static int needs_parens ( const char *  arg)
static

Do we need to put parents around the given argument?

Parameters
argpart of a regular expression
Returns
GNUNET_YES if we should parens, GNUNET_NO if not

Definition at line 177 of file regex.c.

178{
179 size_t off;
180 size_t len;
181 unsigned int op;
182
183 op = 0;
184 len = strlen (arg);
185 for (off = 0; off < len; off++)
186 {
187 switch (arg[off])
188 {
189 case '(':
190 op++;
191 break;
192
193 case ')':
194 GNUNET_assert (op > 0);
195 op--;
196 break;
197
198 case '|':
199 if (0 == op)
200 return GNUNET_YES;
201 break;
202
203 default:
204 break;
205 }
206 }
207 return GNUNET_NO;
208}
op
static struct GNUNET_ARM_Operation * op
Current operation.
Definition: gnunet-arm.c:144
GNUNET_YES
@ GNUNET_YES
Definition: gnunet_common.h:111
GNUNET_NO
@ GNUNET_NO
Definition: gnunet_common.h:108
GNUNET_assert
#define GNUNET_assert(cond)
Use this for fatal errors that cannot be handled.
Definition: gnunet_common.h:937
find_typedefs.arg
arg
Definition: find_typedefs.py:97

References find_typedefs::arg, GNUNET_assert, GNUNET_NO, GNUNET_YES, and op.

Referenced by compute_policy().

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◆ compute_policy()

static char * compute_policy ( unsigned int  start,
unsigned int  end,
unsigned int  step,
const struct GNUNET_STRINGS_PortPolicy *  pp 
)
static

Compute port policy for the given range of port numbers.

Parameters
startstarting offset
endend offset
stepincrement level (power of 16)
ppport policy to convert
Returns
corresponding regex

Definition at line 222 of file regex.c.

226{
227 unsigned int i;
228 char before[36]; /* 16 * 2 + 3 dots + 0-terminator */
229 char middlel[33]; /* 16 * 2 + 0-terminator */
230 char middleh[33]; /* 16 * 2 + 0-terminator */
231 char after[36]; /* 16 * 2 + 3 dots + 0-terminator */
232 char beforep[36 + 2]; /* 16 * 2 + 3 dots + 0-terminator + ()*/
233 char middlehp[33 + 2]; /* 16 * 2 + 0-terminator + () */
234 char middlelp[33 + 2]; /* 16 * 2 + 0-terminator + () */
235 char afterp[36 + 2]; /* 16 * 2 + 3 dots + 0-terminator + () */
236 char dots[5 * strlen (DOT)];
237 char buf[3];
238 char *middle;
239 char *ret;
240 unsigned int xstep;
241 char *recl;
242 char *rech;
243 char *reclp;
244 char *rechp;
245 unsigned int start_port;
246 unsigned int end_port;
247
248 GNUNET_assert (GNUNET_YES == pp->negate_portrange);
249 start_port = pp->start_port;
250 if (1 == start_port)
251 start_port = 0;
252 end_port = pp->end_port;
253 GNUNET_assert ((end - start) / step <= 0xF);
254 before[0] = '\0';
255 middlel[0] = '\0';
256 middleh[0] = '\0';
257 after[0] = '\0';
258 for (i = start; i <= end; i += step)
259 {
260 GNUNET_snprintf (buf,
261 sizeof(buf),
262 "%X|",
263 (i - start) / step);
264 if (i / step < start_port / step)
265 strcat (before, buf);
266 else if (i / step > end_port / step)
267 strcat (after, buf);
268 else if (i / step == start_port / step)
269 strcat (middlel, buf);
270 else if (i / step == end_port / step)
271 strcat (middleh, buf);
272 }
273 if (strlen (before) > 0)
274 before[strlen (before) - 1] = '\0';
275 if (strlen (middlel) > 0)
276 middlel[strlen (middlel) - 1] = '\0';
277 if (strlen (middleh) > 0)
278 middleh[strlen (middleh) - 1] = '\0';
279 if (strlen (after) > 0)
280 after[strlen (after) - 1] = '\0';
281 if (needs_parens (before))
282 GNUNET_snprintf (beforep,
283 sizeof(beforep),
284 "(%s)",
285 before);
286 else
287 strcpy (beforep, before);
288 if (needs_parens (middlel))
289 GNUNET_snprintf (middlelp,
290 sizeof(middlelp),
291 "(%s)",
292 middlel);
293 else
294 strcpy (middlelp, middlel);
295 if (needs_parens (middleh))
296 GNUNET_snprintf (middlehp,
297 sizeof(middlehp),
298 "(%s)",
299 middleh);
300 else
301 strcpy (middlehp, middleh);
302 if (needs_parens (after))
303 GNUNET_snprintf (afterp,
304 sizeof(afterp),
305 "(%s)",
306 after);
307 else
308 strcpy (afterp, after);
309 dots[0] = '\0';
310 for (xstep = step / 16; xstep > 0; xstep /= 16)
311 strcat (dots, DOT);
312 if (step >= 16)
313 {
314 if (strlen (middlel) > 0)
315 recl = compute_policy ((start_port / step) * step,
316 (start_port / step) * step + step - 1,
317 step / 16,
318 pp);
319 else
320 recl = GNUNET_strdup ("");
321 if (strlen (middleh) > 0)
322 rech = compute_policy ((end_port / step) * step,
323 (end_port / step) * step + step - 1,
324 step / 16,
325 pp);
326 else
327 rech = GNUNET_strdup ("");
328 }
329 else
330 {
331 recl = GNUNET_strdup ("");
332 rech = GNUNET_strdup ("");
333 middlel[0] = '\0';
334 middlelp[0] = '\0';
335 middleh[0] = '\0';
336 middlehp[0] = '\0';
337 }
338 if (needs_parens (recl))
339 GNUNET_asprintf (&reclp,
340 "(%s)",
341 recl);
342 else
343 reclp = GNUNET_strdup (recl);
344 if (needs_parens (rech))
345 GNUNET_asprintf (&rechp,
346 "(%s)",
347 rech);
348 else
349 rechp = GNUNET_strdup (rech);
350
351 if ((strlen (middleh) > 0) &&
352 (strlen (rech) > 0) &&
353 (strlen (middlel) > 0) &&
354 (strlen (recl) > 0))
355 {
356 GNUNET_asprintf (&middle,
357 "%s%s|%s%s",
358 middlel,
359 reclp,
360 middleh,
361 rechp);
362 }
363 else if ((strlen (middleh) > 0) &&
364 (strlen (rech) > 0))
365 {
366 GNUNET_asprintf (&middle,
367 "%s%s",
368 middleh,
369 rechp);
370 }
371 else if ((strlen (middlel) > 0) &&
372 (strlen (recl) > 0))
373 {
374 GNUNET_asprintf (&middle,
375 "%s%s",
376 middlel,
377 reclp);
378 }
379 else
380 {
381 middle = GNUNET_strdup ("");
382 }
383 if ((strlen (before) > 0) &&
384 (strlen (after) > 0))
385 {
386 if (strlen (dots) > 0)
387 {
388 if (strlen (middle) > 0)
389 GNUNET_asprintf (&ret,
390 "(%s%s|%s|%s%s)",
391 beforep, dots,
392 middle,
393 afterp, dots);
394 else
395 GNUNET_asprintf (&ret,
396 "(%s|%s)%s",
397 beforep,
398 afterp,
399 dots);
400 }
401 else
402 {
403 if (strlen (middle) > 0)
404 GNUNET_asprintf (&ret,
405 "(%s|%s|%s)",
406 before,
407 middle,
408 after);
409 else if (1 == step)
410 GNUNET_asprintf (&ret,
411 "%s|%s",
412 before,
413 after);
414 else
415 GNUNET_asprintf (&ret,
416 "(%s|%s)",
417 before,
418 after);
419 }
420 }
421 else if (strlen (before) > 0)
422 {
423 if (strlen (dots) > 0)
424 {
425 if (strlen (middle) > 0)
426 GNUNET_asprintf (&ret,
427 "(%s%s|%s)",
428 beforep, dots,
429 middle);
430 else
431 GNUNET_asprintf (&ret,
432 "%s%s",
433 beforep, dots);
434 }
435 else
436 {
437 if (strlen (middle) > 0)
438 GNUNET_asprintf (&ret,
439 "(%s|%s)",
440 before,
441 middle);
442 else
443 GNUNET_asprintf (&ret,
444 "%s",
445 before);
446 }
447 }
448 else if (strlen (after) > 0)
449 {
450 if (strlen (dots) > 0)
451 {
452 if (strlen (middle) > 0)
453 GNUNET_asprintf (&ret,
454 "(%s|%s%s)",
455 middle,
456 afterp, dots);
457 else
458 GNUNET_asprintf (&ret,
459 "%s%s",
460 afterp, dots);
461 }
462 else
463 {
464 if (strlen (middle) > 0)
465 GNUNET_asprintf (&ret,
466 "%s|%s",
467 middle,
468 after);
469 else
470 GNUNET_asprintf (&ret,
471 "%s",
472 after);
473 }
474 }
475 else if (strlen (middle) > 0)
476 {
477 GNUNET_asprintf (&ret,
478 "%s",
479 middle);
480 }
481 else
482 {
483 ret = GNUNET_strdup ("");
484 }
485 GNUNET_free (middle);
486 GNUNET_free (reclp);
487 GNUNET_free (rechp);
488 GNUNET_free (recl);
489 GNUNET_free (rech);
490 return ret;
491}
start
static int start
Set if we are to start default services (including ARM).
Definition: gnunet-arm.c:39
end
static int end
Set if we are to shutdown all services (including ARM).
Definition: gnunet-arm.c:34
GNUNET_snprintf
int GNUNET_snprintf(char *buf, size_t size, const char *format,...) __attribute__((format(printf
Like snprintf, just aborts if the buffer is of insufficient size.
needs_parens
static int needs_parens(const char *arg)
Do we need to put parents around the given argument?
Definition: regex.c:177
compute_policy
static char * compute_policy(unsigned int start, unsigned int end, unsigned int step, const struct GNUNET_STRINGS_PortPolicy *pp)
Compute port policy for the given range of port numbers.
Definition: regex.c:222
GNUNET_STRINGS_PortPolicy::start_port
uint16_t start_port
Starting port range (0 if none given).
Definition: gnunet_strings_lib.h:701
GNUNET_STRINGS_PortPolicy::negate_portrange
int negate_portrange
GNUNET_YES if the port range should be negated ("!" in policy).
Definition: gnunet_strings_lib.h:712
GNUNET_STRINGS_PortPolicy::end_port
uint16_t end_port
End of port range (0 if none given).
Definition: gnunet_strings_lib.h:706

References compute_policy(), DOT, end, GNUNET_STRINGS_PortPolicy::end_port, GNUNET_asprintf(), GNUNET_assert, GNUNET_free, GNUNET_snprintf(), GNUNET_strdup, GNUNET_YES, needs_parens(), GNUNET_STRINGS_PortPolicy::negate_portrange, ret, start, and GNUNET_STRINGS_PortPolicy::start_port.

Referenced by compute_policy(), and port_to_regex().

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◆ port_to_regex()

static char * port_to_regex ( const struct GNUNET_STRINGS_PortPolicy *  pp)
static

Convert a port policy to a regular expression.

Note: this is a very simplistic implementation, we might want to consider doing something more sophisiticated (resulting in smaller regular expressions) at a later time.

Parameters
ppport policy to convert
Returns
NULL on error

Definition at line 504 of file regex.c.

505{
506 char *reg;
507 char *ret;
508 char *pos;
509 unsigned int i;
510 unsigned int cnt;
511
512 if ((0 == pp->start_port) ||
513 ((1 == pp->start_port) &&
514 (0xFFFF == pp->end_port) &&
515 (GNUNET_NO == pp->negate_portrange)))
516 return GNUNET_strdup (DOT DOT DOT DOT);
517 if ((pp->start_port == pp->end_port) &&
518 (GNUNET_NO == pp->negate_portrange))
519 {
520 GNUNET_asprintf (&ret,
521 "%04X",
522 pp->start_port);
523 return ret;
524 }
525 if (pp->end_port < pp->start_port)
526 return NULL;
527
528 if (GNUNET_YES == pp->negate_portrange)
529 {
530 ret = compute_policy (0, 0xFFFF, 0x1000, pp);
531 }
532 else
533 {
534 cnt = pp->end_port - pp->start_port + 1;
535 reg = GNUNET_malloc (cnt * 5 + 1);
536 pos = reg;
537 for (i = 1; i <= 0xFFFF; i++)
538 {
539 if ((i >= pp->start_port) && (i <= pp->end_port))
540 {
541 if (pos == reg)
542 {
543 GNUNET_snprintf (pos,
544 5,
545 "%04X",
546 i);
547 }
548 else
549 {
550 GNUNET_snprintf (pos,
551 6,
552 "|%04X",
553 i);
554 }
555 pos += strlen (pos);
556 }
557 }
558 GNUNET_asprintf (&ret,
559 "(%s)",
560 reg);
561 GNUNET_free (reg);
562 }
563 return ret;
564}
GNUNET_malloc
#define GNUNET_malloc(size)
Wrapper around malloc.
Definition: gnunet_common.h:1346

References compute_policy(), DOT, GNUNET_STRINGS_PortPolicy::end_port, GNUNET_asprintf(), GNUNET_free, GNUNET_malloc, GNUNET_NO, GNUNET_snprintf(), GNUNET_strdup, GNUNET_YES, GNUNET_STRINGS_PortPolicy::negate_portrange, ret, and GNUNET_STRINGS_PortPolicy::start_port.

Referenced by ipv4_to_regex(), and ipv6_to_regex().

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◆ address_to_regex()

static char * address_to_regex ( const void *  addr,
const void *  mask,
size_t  len 
)
static

Convert an address (IPv4 or IPv6) to a regex.

Parameters
addraddress
masknetwork mask
lennumber of bytes in addr and mask
Returns
NULL on error, otherwise regex for the address

Definition at line 576 of file regex.c.

579{
580 const uint16_t *a = addr;
581 const uint16_t *m = mask;
582 char *ret;
583 char *tmp;
584 char *reg;
585 unsigned int i;
586
587 ret = NULL;
588 GNUNET_assert (1 != (len % 2));
589 for (i = 0; i < len / 2; i++)
590 {
591 reg = num_to_regex (a[i], m[i]);
592 if (NULL == reg)
593 {
594 GNUNET_free (ret);
595 return NULL;
596 }
597 if (NULL == ret)
598 {
599 ret = reg;
600 }
601 else
602 {
603 GNUNET_asprintf (&tmp,
604 "%s%s",
605 ret, reg);
606 GNUNET_free (ret);
607 GNUNET_free (reg);
608 ret = tmp;
609 }
610 }
611 return ret;
612}
num_to_regex
static char * num_to_regex(uint16_t value, uint16_t mask)
Convert the given 16-bit number to a regex.
Definition: regex.c:138

References GNUNET_asprintf(), GNUNET_assert, GNUNET_free, m, num_to_regex(), and ret.

Referenced by ipv4_to_regex(), and ipv6_to_regex().

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◆ ipv4_to_regex()

static char * ipv4_to_regex ( const struct GNUNET_STRINGS_IPv4NetworkPolicy *  v4)
static

Convert a single line of an IPv4 policy to a regular expression.

Parameters
v4line to convert
Returns
NULL on error

Definition at line 622 of file regex.c.

623{
624 char *reg;
625 char *pp;
626 char *ret;
627
628 reg = address_to_regex (&v4->network,
629 &v4->netmask,
630 sizeof(struct in_addr));
631 if (NULL == reg)
632 return NULL;
633 pp = port_to_regex (&v4->pp);
634 if (NULL == pp)
635 {
636 GNUNET_free (reg);
637 return NULL;
638 }
639 GNUNET_asprintf (&ret,
640 "4-%s-%s",
641 pp, reg);
642 GNUNET_free (pp);
643 GNUNET_free (reg);
644 return ret;
645}
address_to_regex
static char * address_to_regex(const void *addr, const void *mask, size_t len)
Convert an address (IPv4 or IPv6) to a regex.
Definition: regex.c:576
port_to_regex
static char * port_to_regex(const struct GNUNET_STRINGS_PortPolicy *pp)
Convert a port policy to a regular expression.
Definition: regex.c:504
GNUNET_STRINGS_IPv4NetworkPolicy::network
struct in_addr network
IPv4 address.
Definition: gnunet_strings_lib.h:724
GNUNET_STRINGS_IPv4NetworkPolicy::pp
struct GNUNET_STRINGS_PortPolicy pp
Policy for port access.
Definition: gnunet_strings_lib.h:734
GNUNET_STRINGS_IPv4NetworkPolicy::netmask
struct in_addr netmask
IPv4 netmask.
Definition: gnunet_strings_lib.h:729

References address_to_regex(), GNUNET_asprintf(), GNUNET_free, GNUNET_STRINGS_IPv4NetworkPolicy::netmask, GNUNET_STRINGS_IPv4NetworkPolicy::network, port_to_regex(), GNUNET_STRINGS_IPv4NetworkPolicy::pp, and ret.

Referenced by GNUNET_TUN_ipv4policy2regex().

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◆ ipv6_to_regex()

static char * ipv6_to_regex ( const struct GNUNET_STRINGS_IPv6NetworkPolicy *  v6)
static

Convert a single line of an IPv4 policy to a regular expression.

Parameters
v6line to convert
Returns
NULL on error

Definition at line 655 of file regex.c.

656{
657 char *reg;
658 char *pp;
659 char *ret;
660
661 reg = address_to_regex (&v6->network,
662 &v6->netmask,
663 sizeof(struct in6_addr));
664 if (NULL == reg)
665 return NULL;
666 pp = port_to_regex (&v6->pp);
667 if (NULL == pp)
668 {
669 GNUNET_free (reg);
670 return NULL;
671 }
672 GNUNET_asprintf (&ret,
673 "6-%s-%s",
674 pp, reg);
675 GNUNET_free (pp);
676 GNUNET_free (reg);
677 return ret;
678}
GNUNET_STRINGS_IPv6NetworkPolicy::pp
struct GNUNET_STRINGS_PortPolicy pp
Policy for port access.
Definition: gnunet_strings_lib.h:756
GNUNET_STRINGS_IPv6NetworkPolicy::network
struct in6_addr network
IPv6 address.
Definition: gnunet_strings_lib.h:746
GNUNET_STRINGS_IPv6NetworkPolicy::netmask
struct in6_addr netmask
IPv6 netmask.
Definition: gnunet_strings_lib.h:751

References address_to_regex(), GNUNET_asprintf(), GNUNET_free, GNUNET_STRINGS_IPv6NetworkPolicy::netmask, GNUNET_STRINGS_IPv6NetworkPolicy::network, port_to_regex(), GNUNET_STRINGS_IPv6NetworkPolicy::pp, and ret.

Referenced by GNUNET_TUN_ipv6policy2regex().

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