mir/bind
2
0
Fork 0
mirror of https://gitlab.isc.org/isc-projects/bind9 synced 2025-08-31 06:25:31 +00:00
Code Issues Releases Wiki Activity

4255. [func] Add 'message-compression' option to disable DNS compression in responses. [RT #40726]

Browse Source
This commit is contained in:
Witold Krecicki
2015-11-05 12:19:04 +01:00
parent 29868ebbe3
commit bfd4b9e11a
21 changed files with 451 additions and 214 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
lib/dns/compress.c
View File

@@ -15,8 +15,6 @@
* PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id$ */
/*! \file */
#define DNS_NAME_USEINLINE 1
@@ -56,6 +54,7 @@ dns_compress_init(dns_compress_t *cctx, int edns, isc_mem_t *mctx) {
cctx->mctx = mctx;
cctx->count = 0;
cctx->magic = CCTX_MAGIC;
cctx->enabled = ISC_TRUE;
return (ISC_R_SUCCESS);
}
@@ -97,6 +96,12 @@ dns_compress_getmethods(dns_compress_t *cctx) {
return (cctx->allowed & DNS_COMPRESS_ALL);
}
void
dns_compress_disable(dns_compress_t *cctx) {
REQUIRE(VALID_CCTX(cctx));
cctx->enabled = ISC_FALSE;
}
void
dns_compress_setsensitive(dns_compress_t *cctx, isc_boolean_t sensitive) {
REQUIRE(VALID_CCTX(cctx));
@@ -145,6 +150,9 @@ dns_compress_findglobal(dns_compress_t *cctx, const dns_name_t *name,
REQUIRE(dns_name_isabsolute(name) == ISC_TRUE);
REQUIRE(offset != NULL);
if (cctx->enabled == ISC_FALSE)
return (ISC_FALSE);
if (cctx->count == 0)
return (ISC_FALSE);
@@ -214,6 +222,9 @@ dns_compress_add(dns_compress_t *cctx, const dns_name_t *name,
REQUIRE(VALID_CCTX(cctx));
REQUIRE(dns_name_isabsolute(name));
if (cctx->enabled == ISC_FALSE)
return;
if (offset >= 0x4000)
return;
dns_name_init(&tname, NULL);