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[master] dnstap

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4235.	[func]		Added support in named for "dnstap", a fast method of
			capturing and logging DNS traffic, and a new command
			"dnstap-read" to read a dnstap log file.  Use
			"configure --enable-dnstap" to enable this
			feature (note that this requires libprotobuf-c
			and libfstrm). See the ARM for configuration details.

			Thanks to Robert Edmonds of Farsight Security.
			[RT #40211]
This commit is contained in:
Evan Hunt
2015-10-02 12:32:42 -07:00
parent a239044323
commit b66b333f59
65 changed files with 5741 additions and 43 deletions
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70
lib/dns/tests/dnstest.c
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@@ -26,11 +26,13 @@
#include <isc/app.h>
#include <isc/buffer.h>
#include <isc/entropy.h>
#include <isc/file.h>
#include <isc/hash.h>
#include <isc/mem.h>
#include <isc/os.h>
#include <isc/string.h>
#include <isc/socket.h>
#include <isc/stdio.h>
#include <isc/task.h>
#include <isc/timer.h>
#include <isc/util.h>
@@ -341,3 +343,71 @@ dns_test_loaddb(dns_db_t **db, dns_dbtype_t dbtype, const char *origin,
result = dns_db_load(*db, testfile);
return (result);
}
static int
fromhex(char c) {
if (c >= '0' && c <= '9')
return (c - '0');
else if (c >= 'a' && c <= 'f')
return (c - 'a' + 10);
else if (c >= 'A' && c <= 'F')
return (c - 'A' + 10);
printf("bad input format: %02x\n", c);
exit(3);
/* NOTREACHED */
}
isc_result_t
dns_test_getdata(const char *file, unsigned char *buf,
size_t bufsiz, size_t *sizep)
{
isc_result_t result;
unsigned char *bp;
char *rp, *wp;
char s[BUFSIZ];
size_t len, i;
FILE *f;
int n;
result = isc_stdio_open(file, "r", &f);
if (result != ISC_R_SUCCESS)
return (result);
bp = buf;
while (fgets(s, sizeof(s), f) != NULL) {
rp = s;
wp = s;
len = 0;
while (*rp != '\0') {
if (*rp == '#')
break;
if (*rp != ' ' && *rp != '\t' &&
*rp != '\r' && *rp != '\n') {
*wp++ = *rp;
len++;
}
rp++;
}
if (len == 0U)
continue;
if (len % 2 != 0U)
return (ISC_R_UNEXPECTEDEND);
if (len > bufsiz * 2)
return (ISC_R_NOSPACE);
rp = s;
for (i = 0; i < len; i += 2) {
n = fromhex(*rp++);
n *= 16;
n += fromhex(*rp++);
*bp++ = n;
}
}
isc_stdio_close(f);
*sizep = bp - buf;
return (ISC_R_SUCCESS);
}