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From 5f9236521f5add49669a97875b7d26cf35b28963 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Petr=20Men=C5=A1=C3=ADk?= <pemensik@redhat.com>
Date: Fri, 22 Jun 2018 14:05:18 +0200
Subject: [PATCH 1/2] Squashed commit of the following:
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
commit 3fd542379fa381b54381e07d6625ce53f9f9b1f0
Author: Petr Menšík <pemensik@redhat.com>
Date: Thu Jun 21 12:00:35 2018 +0200
Revert "4450. [port] Provide more nuanced HSM support which better matches"
This reverts commit f3b4d031c1f714ff6e862670663aa5a18650951e.
Revert PK11_MD5_DISABLED also from remaining files. Keep documentation
changes.
commit f90934f734796595135cdd7a5008555a615dfe8e
Author: Petr Menšík <pemensik@redhat.com>
Date: Wed Jun 20 19:31:19 2018 +0200
Fix rndc-confgen default algorithm, report true algorithm in usage.
commit dd53212c12c6943a21a3c24d60995edd19e1d9f7
Author: Petr Menšík <pemensik@redhat.com>
Date: Fri Feb 23 21:21:30 2018 +0100
Cleanup only if initialization was successful
commit f163ea51c46bb22bf264a1ac983e2027e43845fa
Author: Petr Menšík <pemensik@redhat.com>
Date: Mon Feb 5 12:19:28 2018 +0100
Ensure dst backend is initialized first even before hmac algorithms.
commit 58751b60bd39168b7c8f817ede70473842432081
Author: Petr Menšík <pemensik@redhat.com>
Date: Mon Feb 5 12:17:54 2018 +0100
Skip initialization of MD5 based algorithms if not available.
commit 0572b98430d3c80f4a0b0c592b1e3bf7fde9b768
Author: Petr Menšík <pemensik@redhat.com>
Date: Mon Feb 5 10:21:27 2018 +0100
Change secalgs skipping to be more safe
commit 994f497a032930fce1370d507a265fbb293c66f4
Author: Petr Menšík <pemensik@redhat.com>
Date: Wed Jan 31 18:26:11 2018 +0100
Skip MD5 algorithm also in case of NULL name
commit abd82fbd2507c4b8f20e1ade202fd66d224fd646
Author: Petr Menšík <pemensik@redhat.com>
Date: Wed Jan 31 16:54:29 2018 +0100
Revert part of commit 1b5c641416eb6de7fc232fc89d31a40a4d439f3d related
to SHA1.
commit b3c832d53a14a0779f598869bb99685c8e4b2bc0
Author: Petr Menšík <pemensik@redhat.com>
Date: Wed Jan 31 11:38:12 2018 +0100
Make MD5 behave like unknown algorithm in TSIG.
commit a64a3d6962ee93d6f8699b29bd6507dba0c244ed
Author: Petr Menšík <pemensik@redhat.com>
Date: Tue Nov 28 20:14:37 2017 +0100
Select token with most supported functions, instead of demanding it must support all functions
Initialize PKCS#11 always until successfully initialized
commit db118c6368668099ea1b6e75860cc12e178afa3b
Author: Petr Menšík <pemensik@redhat.com>
Date: Mon Jan 22 16:17:44 2018 +0100
Handle MD5 unavailability from DST
commit 8f8824dca2f5b4d5a3a176d31ac3ee612321c4e3
Author: Petr Menšík <pemensik@redhat.com>
Date: Mon Jan 22 14:11:16 2018 +0100
Check runtime flag from library and applications, fail gracefully.
commit bd431384af7dcde8827e670c8749517ad677a967
Author: Petr Menšík <pemensik@redhat.com>
Date: Mon Jan 22 08:39:08 2018 +0100
Modify libraries to use isc_md5_available() if PK11_MD5_DISABLE is not
defined.
TODO: pk11.c should accept slot without MD5 support.
commit 160b13979ef3d0e92d2dd52d0987a3ec979be6cf
Author: Petr Menšík <pemensik@redhat.com>
Date: Mon Jan 22 07:21:04 2018 +0100
Add runtime detection whether MD5 is useable.
commit 23b27ce0f2ad496c331ae40349cc1074a1b11804
Author: Mark Andrews <marka@isc.org>
Date: Fri Aug 19 08:25:54 2016 +1000
4450. [port] Provide more nuanced HSM support which better matches
the specific PKCS11 providers capabilities. [RT #42458]
(cherry picked from commit 8ee6f289d87851a5b898b24a64587f0e6bc225bc)
Fix compiler warnings
---
bin/confgen/keygen.c | 10 +++++-
bin/confgen/rndc-confgen.c | 12 ++++---
bin/confgen/rndc-confgen.docbook | 3 +-
bin/dig/dig.c | 5 ++-
bin/dig/dig.docbook | 6 ++--
bin/dig/dighost.c | 14 ++++++--
bin/dnssec/dnssec-keyfromlabel.c | 9 +++++
bin/dnssec/dnssec-keygen.c | 19 +++++++++--
bin/named/config.c | 23 +++++++++++--
bin/nsupdate/nsupdate.c | 20 +++++++----
bin/nsupdate/nsupdate.docbook | 9 ++++-
bin/rndc/rndc.c | 3 +-
bin/tests/hashes/t_hashes.c | 20 ++++++-----
lib/bind9/check.c | 8 +++++
lib/dns/dst_api.c | 23 +++++++++----
lib/dns/dst_internal.h | 3 +-
lib/dns/dst_parse.c | 12 ++++++-
lib/dns/hmac_link.c | 2 +-
lib/dns/opensslrsa_link.c | 4 +++
lib/dns/pkcs11rsa_link.c | 25 ++++++++++++--
lib/dns/rcode.c | 19 +++++++++--
lib/dns/tests/tsig_test.c | 1 +
lib/dns/tkey.c | 9 +++++
lib/dns/tsec.c | 8 ++++-
lib/dns/tsig.c | 22 +++++-------
lib/isc/include/isc/md5.h | 3 ++
lib/isc/md5.c | 59 ++++++++++++++++++++++++++++++++
lib/isc/pk11.c | 72 +++++++++++++++++++++++++++++++---------
lib/isccc/cc.c | 48 ++++++++++++++++-----------
29 files changed, 373 insertions(+), 98 deletions(-)
diff --git a/bin/confgen/keygen.c b/bin/confgen/keygen.c
index d0cdafed36..4eb027e723 100644
--- a/bin/confgen/keygen.c
+++ b/bin/confgen/keygen.c
@@ -28,6 +28,7 @@
#include <isc/entropy.h>
#include <isc/file.h>
#include <isc/keyboard.h>
+#include <isc/md5.h>
#include <isc/mem.h>
#include <isc/result.h>
#include <isc/string.h>
@@ -69,7 +70,7 @@ alg_totext(dns_secalg_t alg) {
*/
dns_secalg_t
alg_fromtext(const char *name) {
- if (strcmp(name, "hmac-md5") == 0)
+ if (strcmp(name, "hmac-md5") == 0 && isc_md5_available())
return DST_ALG_HMACMD5;
if (strcmp(name, "hmac-sha1") == 0)
return DST_ALG_HMACSHA1;
@@ -126,6 +127,13 @@ generate_key(isc_mem_t *mctx, const char *randomfile, dns_secalg_t alg,
switch (alg) {
case DST_ALG_HMACMD5:
+ if (isc_md5_available() == ISC_FALSE) {
+ fatal("unsupported algorithm %d\n", alg);
+ } else if (keysize < 1 || keysize > 512) {
+ fatal("keysize %d out of range (must be 1-512)\n",
+ keysize);
+ }
+ break;
case DST_ALG_HMACSHA1:
case DST_ALG_HMACSHA224:
case DST_ALG_HMACSHA256:
diff --git a/bin/confgen/rndc-confgen.c b/bin/confgen/rndc-confgen.c
index 3fd54fe2bb..c48a38f094 100644
--- a/bin/confgen/rndc-confgen.c
+++ b/bin/confgen/rndc-confgen.c
@@ -41,6 +41,7 @@
#include <isc/file.h>
#include <isc/keyboard.h>
#include <isc/mem.h>
+#include <isc/md5.h>
#include <isc/net.h>
#include <isc/print.h>
#include <isc/result.h>
@@ -66,7 +67,7 @@ const char *progname;
isc_boolean_t verbose = ISC_FALSE;
-const char *keyfile, *keydef;
+const char *keyfile, *keydef, *algdef;
ISC_PLATFORM_NORETURN_PRE static void
usage(int status) ISC_PLATFORM_NORETURN_POST;
@@ -79,7 +80,7 @@ Usage:\n\
%s [-a] [-b bits] [-c keyfile] [-k keyname] [-p port] [-r randomfile] \
[-s addr] [-t chrootdir] [-u user]\n\
-a: generate just the key clause and write it to keyfile (%s)\n\
- -A alg: algorithm (default hmac-md5)\n\
+ -A alg: algorithm (default %s)\n\
-b bits: from 1 through 512, default 256; total length of the secret\n\
-c keyfile: specify an alternate key file (requires -a)\n\
-k keyname: the name as it will be used in named.conf and rndc.conf\n\
@@ -88,7 +89,7 @@ Usage:\n\
-s addr: the address to which rndc should connect\n\
-t chrootdir: write a keyfile in chrootdir as well (requires -a)\n\
-u user: set the keyfile owner to \"user\" (requires -a)\n",
- progname, keydef);
+ progname, keydef, algdef);
exit (status);
}
@@ -124,9 +125,12 @@ main(int argc, char **argv) {
progname = program;
keyname = DEFAULT_KEYNAME;
- alg = DST_ALG_HMACMD5;
serveraddr = DEFAULT_SERVER;
port = DEFAULT_PORT;
+ alg = DST_ALG_HMACSHA256;
+ if (isc_md5_available())
+ alg = DST_ALG_HMACMD5;
+ algdef = alg_totext(alg);
isc_commandline_errprint = ISC_FALSE;
diff --git a/bin/confgen/rndc-confgen.docbook b/bin/confgen/rndc-confgen.docbook
index f367b94aae..add8d7357f 100644
--- a/bin/confgen/rndc-confgen.docbook
+++ b/bin/confgen/rndc-confgen.docbook
@@ -136,7 +136,8 @@
<para>
Specifies the algorithm to use for the TSIG key. Available
choices are: hmac-md5, hmac-sha1, hmac-sha224, hmac-sha256,
- hmac-sha384 and hmac-sha512. The default is hmac-md5.
+ hmac-sha384 and hmac-sha512. The default is hmac-md5 or
+ if MD5 was disabled hmac-sha256.
</para>
</listitem>
</varlistentry>
diff --git a/bin/dig/dig.c b/bin/dig/dig.c
index 634ccfbfbf..4db0e6430f 100644
--- a/bin/dig/dig.c
+++ b/bin/dig/dig.c
@@ -25,6 +25,7 @@
#include <ctype.h>
#include <isc/app.h>
+#include <isc/md5.h>
#include <isc/netaddr.h>
#include <isc/parseint.h>
#include <isc/print.h>
@@ -1426,7 +1427,9 @@ dash_option(char *option, char *next, dig_lookup_t **lookup,
ptr = ptr2;
ptr2 = ptr3;
} else {
- hmacname = DNS_TSIG_HMACMD5_NAME;
+ hmacname = DNS_TSIG_HMACSHA256_NAME;
+ if (isc_md5_available())
+ hmacname = DNS_TSIG_HMACMD5_NAME;
digestbits = 0;
}
strncpy(keynametext, ptr, sizeof(keynametext));
diff --git a/bin/dig/dig.docbook b/bin/dig/dig.docbook
index 028f0fcd73..6ee5bd90bc 100644
--- a/bin/dig/dig.docbook
+++ b/bin/dig/dig.docbook
@@ -309,9 +309,11 @@
responses using transaction signatures (TSIG), specify a TSIG key file
using the <option>-k</option> option. You can also specify the TSIG
key itself on the command line using the <option>-y</option> option;
- <parameter>hmac</parameter> is the type of the TSIG, default HMAC-MD5,
+ <parameter>hmac</parameter> is the type of the TSIG,
<parameter>name</parameter> is the name of the TSIG key and
- <parameter>key</parameter> is the actual key. The key is a
+ <parameter>key</parameter> is the actual key. If <parameter>hmac</parameter>
+ is not specified, the default is <literal>hmac-md5</literal>
+ or if MD5 was disabled <literal>hmac-sha256</literal>. The key is a
base-64
encoded string, typically generated by
<citerefentry>
diff --git a/bin/dig/dighost.c b/bin/dig/dighost.c
index 3a066c68c9..3998a81a5d 100644
--- a/bin/dig/dighost.c
+++ b/bin/dig/dighost.c
@@ -81,6 +81,7 @@
#include <isc/file.h>
#include <isc/lang.h>
#include <isc/log.h>
+#include <isc/md5.h>
#include <isc/netaddr.h>
#ifdef DIG_SIGCHASE
#include <isc/netdb.h>
@@ -1025,9 +1026,10 @@ parse_hmac(const char *hmac) {
digestbits = 0;
- if (strcasecmp(buf, "hmac-md5") == 0) {
+ if (strcasecmp(buf, "hmac-md5") == 0 && isc_md5_available()) {
hmacname = DNS_TSIG_HMACMD5_NAME;
- } else if (strncasecmp(buf, "hmac-md5-", 9) == 0) {
+ } else if (strncasecmp(buf, "hmac-md5-", 9) == 0 &&
+ isc_md5_available()) {
hmacname = DNS_TSIG_HMACMD5_NAME;
digestbits = parse_bits(&buf[9], "digest-bits [0..128]", 128);
} else if (strcasecmp(buf, "hmac-sha1") == 0) {
@@ -1145,7 +1147,13 @@ setup_file_key(void) {
switch (dst_key_alg(dstkey)) {
case DST_ALG_HMACMD5:
- hmacname = DNS_TSIG_HMACMD5_NAME;
+ if (isc_md5_available()) {
+ hmacname = DNS_TSIG_HMACMD5_NAME;
+ } else {
+ printf(";; Couldn't create key %s: bad algorithm\n",
+ keynametext);
+ goto failure;
+ }
break;
case DST_ALG_HMACSHA1:
hmacname = DNS_TSIG_HMACSHA1_NAME;
diff --git a/bin/dnssec/dnssec-keyfromlabel.c b/bin/dnssec/dnssec-keyfromlabel.c
index cc212e1ed1..a5854a1f4c 100644
--- a/bin/dnssec/dnssec-keyfromlabel.c
+++ b/bin/dnssec/dnssec-keyfromlabel.c
@@ -27,6 +27,7 @@
#include <isc/commandline.h>
#include <isc/entropy.h>
#include <isc/mem.h>
+#include <isc/md5.h>
#include <isc/region.h>
#include <isc/print.h>
#include <isc/string.h>
@@ -379,6 +380,11 @@ main(int argc, char **argv) {
if (freeit != NULL)
free(freeit);
return (1);
+ } else if (strcasecmp(algname, "RSAMD5") == 0 && isc_md5_available() == ISC_FALSE) {
+ fprintf(stderr, "The use of RSAMD5 was disabled\n");
+ if (freeit != NULL)
+ free(freeit);
+ return (1);
} else {
r.base = algname;
r.length = strlen(algname);
@@ -412,6 +418,9 @@ main(int argc, char **argv) {
fatal("invalid type %s", type);
}
+ if (alg == DST_ALG_RSAMD5 && isc_md5_available() == ISC_FALSE)
+ fatal("Key uses disabled RSAMD5");
+
if (nametype == NULL) {
if ((options & DST_TYPE_KEY) != 0) /* KEY */
fatal("no nametype specified");
diff --git a/bin/dnssec/dnssec-keygen.c b/bin/dnssec/dnssec-keygen.c
index 97b96ee1dc..c147bb4e6c 100644
--- a/bin/dnssec/dnssec-keygen.c
+++ b/bin/dnssec/dnssec-keygen.c
@@ -42,6 +42,7 @@
#include <isc/buffer.h>
#include <isc/commandline.h>
#include <isc/entropy.h>
+#include <isc/md5.h>
#include <isc/mem.h>
#include <isc/region.h>
#include <isc/string.h>
@@ -548,9 +549,21 @@ main(int argc, char **argv) {
"\"-a RSAMD5\"\n");
INSIST(freeit == NULL);
return (1);
- } else if (strcasecmp(algname, "HMAC-MD5") == 0)
- alg = DST_ALG_HMACMD5;
- else if (strcasecmp(algname, "HMAC-SHA1") == 0)
+ } else if (strcasecmp(algname, "HMAC-MD5") == 0) {
+ if (isc_md5_available()) {
+ alg = DST_ALG_HMACMD5;
+ } else {
+ fprintf(stderr,
+ "The use of HMAC-MD5 was disabled\n");
+ INSIST(freeit == NULL);
+ return (1);
+ }
+ } else if (strcasecmp(algname, "RSAMD5") == 0 &&
+ isc_md5_available() == ISC_FALSE) {
+ fprintf(stderr, "The use of RSAMD5 was disabled\n");
+ INSIST(freeit == NULL);
+ return (1);
+ } else if (strcasecmp(algname, "HMAC-SHA1") == 0)
alg = DST_ALG_HMACSHA1;
else if (strcasecmp(algname, "HMAC-SHA224") == 0)
alg = DST_ALG_HMACSHA224;
diff --git a/bin/named/config.c b/bin/named/config.c
index 818ed3797a..22d8a85405 100644
--- a/bin/named/config.c
+++ b/bin/named/config.c
@@ -25,6 +25,7 @@
#include <isc/buffer.h>
#include <isc/log.h>
+#include <isc/md5.h>
#include <isc/mem.h>
#include <isc/parseint.h>
#include <isc/region.h>
@@ -828,6 +829,19 @@ ns_config_getkeyalgorithm(const char *str, dns_name_t **name,
return (ns_config_getkeyalgorithm2(str, name, NULL, digestbits));
}
+static inline int
+algorithms_start() {
+ if (isc_md5_available() == ISC_FALSE) {
+ int i = 0;
+ while (algorithms[i].str != NULL &&
+ algorithms[i].hmac == hmacmd5) {
+ i++;
+ }
+ return i;
+ }
+ return 0;
+}
+
isc_result_t
ns_config_getkeyalgorithm2(const char *str, dns_name_t **name,
unsigned int *typep, isc_uint16_t *digestbits)
@@ -837,7 +851,7 @@ ns_config_getkeyalgorithm2(const char *str, dns_name_t **name,
isc_uint16_t bits;
isc_result_t result;
- for (i = 0; algorithms[i].str != NULL; i++) {
+ for (i = algorithms_start(); algorithms[i].str != NULL; i++) {
len = strlen(algorithms[i].str);
if (strncasecmp(algorithms[i].str, str, len) == 0 &&
(str[len] == '\0' ||
@@ -859,7 +873,12 @@ ns_config_getkeyalgorithm2(const char *str, dns_name_t **name,
if (name != NULL) {
switch (algorithms[i].hmac) {
- case hmacmd5: *name = dns_tsig_hmacmd5_name; break;
+ case hmacmd5:
+ if (isc_md5_available()) {
+ *name = dns_tsig_hmacmd5_name; break;
+ } else {
+ return (ISC_R_NOTFOUND);
+ }
case hmacsha1: *name = dns_tsig_hmacsha1_name; break;
case hmacsha224: *name = dns_tsig_hmacsha224_name; break;
case hmacsha256: *name = dns_tsig_hmacsha256_name; break;
diff --git a/bin/nsupdate/nsupdate.c b/bin/nsupdate/nsupdate.c
index 644e3d9fc0..336597a95d 100644
--- a/bin/nsupdate/nsupdate.c
+++ b/bin/nsupdate/nsupdate.c
@@ -37,6 +37,7 @@
#include <isc/hash.h>
#include <isc/lex.h>
#include <isc/log.h>
+#include <isc/md5.h>
#include <isc/mem.h>
#include <isc/parseint.h>
#include <isc/print.h>
@@ -440,9 +441,10 @@ parse_hmac(dns_name_t **hmac, const char *hmacstr, size_t len) {
strncpy(buf, hmacstr, len);
buf[len] = 0;
- if (strcasecmp(buf, "hmac-md5") == 0) {
+ if (strcasecmp(buf, "hmac-md5") == 0 && isc_md5_available()) {
*hmac = DNS_TSIG_HMACMD5_NAME;
- } else if (strncasecmp(buf, "hmac-md5-", 9) == 0) {
+ } else if (strncasecmp(buf, "hmac-md5-", 9) == 0 &&
+ isc_md5_available()) {
*hmac = DNS_TSIG_HMACMD5_NAME;
result = isc_parse_uint16(&digestbits, &buf[9], 10);
if (result != ISC_R_SUCCESS || digestbits > 128)
@@ -538,7 +540,9 @@ setup_keystr(void) {
secretstr = n + 1;
digestbits = parse_hmac(&hmacname, keystr, s - keystr);
} else {
- hmacname = DNS_TSIG_HMACMD5_NAME;
+ hmacname = DNS_TSIG_HMACSHA256_NAME;
+ if (isc_md5_available())
+ hmacname = DNS_TSIG_HMACMD5_NAME;
name = keystr;
n = s;
}
@@ -670,7 +674,8 @@ setup_keyfile(isc_mem_t *mctx, isc_log_t *lctx) {
switch (dst_key_alg(dstkey)) {
case DST_ALG_HMACMD5:
- hmacname = DNS_TSIG_HMACMD5_NAME;
+ if (isc_md5_available())
+ hmacname = DNS_TSIG_HMACMD5_NAME;
break;
case DST_ALG_HMACSHA1:
hmacname = DNS_TSIG_HMACSHA1_NAME;
@@ -1462,8 +1467,11 @@ evaluate_key(char *cmdline) {
if (n != NULL) {
digestbits = parse_hmac(&hmacname, namestr, n - namestr);
namestr = n + 1;
- } else
- hmacname = DNS_TSIG_HMACMD5_NAME;
+ } else {
+ hmacname = DNS_TSIG_HMACSHA256_NAME;
+ if (isc_md5_available())
+ hmacname = DNS_TSIG_HMACMD5_NAME;
+ }
isc_buffer_init(&b, namestr, strlen(namestr));
isc_buffer_add(&b, strlen(namestr));
diff --git a/bin/nsupdate/nsupdate.docbook b/bin/nsupdate/nsupdate.docbook
index bbcc68110f..7d8e78f894 100644
--- a/bin/nsupdate/nsupdate.docbook
+++ b/bin/nsupdate/nsupdate.docbook
@@ -158,6 +158,9 @@
<optional><parameter>hmac:</parameter></optional><parameter>keyname:secret.</parameter>
<parameter>keyname</parameter> is the name of the key, and
<parameter>secret</parameter> is the base64 encoded shared secret.
+ If <parameter>hmac</parameter> is not specified,
+ the default is <literal>hmac-md5</literal>
+ or if MD5 was disabled <literal>hmac-sha256</literal>.
Use of the <option>-y</option> option is discouraged because the
shared secret is supplied as a command line argument in clear text.
This may be visible in the output from
@@ -371,13 +374,17 @@
<varlistentry>
<term>
<command>key</command>
- <arg choice="req">name</arg>
+ <arg choice="opt" rep="norepeat">hmac:</arg><arg choice="req">name</arg>
<arg choice="req">secret</arg>
</term>
<listitem>
<para>
Specifies that all updates are to be TSIG-signed using the
<parameter>keyname</parameter> <parameter>keysecret</parameter> pair.
+ If <parameter>hmac</parameter> is specified, then it sets the
+ signing algorithm in use; the default is
+ <literal>hmac-md5</literal> or if MD5 was disabled
+ <literal>hmac-sha256</literal>.
The <command>key</command> command
overrides any key specified on the command line via
<option>-y</option> or <option>-k</option>.
diff --git a/bin/rndc/rndc.c b/bin/rndc/rndc.c
index 81e629f15c..0fd192d3a5 100644
--- a/bin/rndc/rndc.c
+++ b/bin/rndc/rndc.c
@@ -33,6 +33,7 @@
#include <isc/file.h>
#include <isc/log.h>
#include <isc/net.h>
+#include <isc/md5.h>
#include <isc/mem.h>
#include <isc/random.h>
#include <isc/socket.h>
@@ -607,7 +608,7 @@ parse_config(isc_mem_t *mctx, isc_log_t *log, const char *keyname,
secretstr = cfg_obj_asstring(secretobj);
algorithmstr = cfg_obj_asstring(algorithmobj);
- if (strcasecmp(algorithmstr, "hmac-md5") == 0)
+ if (strcasecmp(algorithmstr, "hmac-md5") == 0 && isc_md5_available())
algorithm = ISCCC_ALG_HMACMD5;
else if (strcasecmp(algorithmstr, "hmac-sha1") == 0)
algorithm = ISCCC_ALG_HMACSHA1;
diff --git a/bin/tests/hashes/t_hashes.c b/bin/tests/hashes/t_hashes.c
index 47d08c572d..965271ad67 100644
--- a/bin/tests/hashes/t_hashes.c
+++ b/bin/tests/hashes/t_hashes.c
@@ -353,8 +353,10 @@ t_hashes(IN *in, OUT *out_sha1, OUT *out_sha224, OUT *out_md5)
t_hash("SHA1", (HASH_INIT)isc_sha1_init, (UPDATE)isc_sha1_update,
(FINAL)isc_sha1_final, in, out_sha1);
t_sha224(in, out_sha224);
- t_hash("md5", (HASH_INIT)isc_md5_init, (UPDATE)isc_md5_update,
- (FINAL)isc_md5_final, in, out_md5);
+ if (isc_md5_available()) {
+ t_hash("md5", (HASH_INIT)isc_md5_init, (UPDATE)isc_md5_update,
+ (FINAL)isc_md5_final, in, out_md5);
+ }
}
@@ -435,12 +437,14 @@ t1(void)
t_hashes(&abc, &abc_sha1, &abc_sha224, &abc_md5);
t_hashes(&abc_blah, &abc_blah_sha1, &abc_blah_sha224, &abc_blah_md5);
- /*
- * three HMAC-md5 examples from RFC 2104
- */
- t_md5hmac(&rfc2104_1, &rfc2104_1_hmac);
- t_md5hmac(&rfc2104_2, &rfc2104_2_hmac);
- t_md5hmac(&rfc2104_3, &rfc2104_3_hmac);
+ if (isc_md5_available()) {
+ /*
+ * three HMAC-md5 examples from RFC 2104
+ */
+ t_md5hmac(&rfc2104_1, &rfc2104_1_hmac);
+ t_md5hmac(&rfc2104_2, &rfc2104_2_hmac);
+ t_md5hmac(&rfc2104_3, &rfc2104_3_hmac);
+ }
/*
* four HMAC-SHA tests from RFC 4634 starting on page 86
diff --git a/lib/bind9/check.c b/lib/bind9/check.c
index 5131b521f4..00c4b3e509 100644
--- a/lib/bind9/check.c
+++ b/lib/bind9/check.c
@@ -26,6 +26,7 @@
#include <isc/base64.h>
#include <isc/buffer.h>
#include <isc/log.h>
+#include <isc/md5.h>
#include <isc/mem.h>
#include <isc/netaddr.h>
#include <isc/parseint.h>
@@ -1895,6 +1896,13 @@ bind9_check_key(const cfg_obj_t *key, isc_log_t *logctx) {
}
algorithm = cfg_obj_asstring(algobj);
+ /* Skip hmac-md5* algorithms */
+ if (isc_md5_available() == ISC_FALSE &&
+ strncasecmp(algorithm, "hmac-md5", 8) == 0) {
+ cfg_obj_log(algobj, logctx, ISC_LOG_ERROR,
+ "disabled algorithm '%s'", algorithm);
+ return (ISC_R_DISABLED);
+ }
for (i = 0; algorithms[i].name != NULL; i++) {
len = strlen(algorithms[i].name);
if (strncasecmp(algorithms[i].name, algorithm, len) == 0 &&
diff --git a/lib/dns/dst_api.c b/lib/dns/dst_api.c
index e71f2026e5..e6375cf406 100644
--- a/lib/dns/dst_api.c
+++ b/lib/dns/dst_api.c
@@ -202,6 +202,12 @@ dst_lib_init2(isc_mem_t *mctx, isc_entropy_t *ectx,
dst_result_register();
memset(dst_t_func, 0, sizeof(dst_t_func));
+
+#ifdef OPENSSL
+ RETERR(dst__openssl_init(engine));
+#elif PKCS11CRYPTO
+ RETERR(dst__pkcs11_init(mctx, engine));
+#endif
RETERR(dst__hmacmd5_init(&dst_t_func[DST_ALG_HMACMD5]));
RETERR(dst__hmacsha1_init(&dst_t_func[DST_ALG_HMACSHA1]));
RETERR(dst__hmacsha224_init(&dst_t_func[DST_ALG_HMACSHA224]));
@@ -209,7 +215,6 @@ dst_lib_init2(isc_mem_t *mctx, isc_entropy_t *ectx,
RETERR(dst__hmacsha384_init(&dst_t_func[DST_ALG_HMACSHA384]));
RETERR(dst__hmacsha512_init(&dst_t_func[DST_ALG_HMACSHA512]));
#ifdef OPENSSL
- RETERR(dst__openssl_init(engine));
RETERR(dst__opensslrsa_init(&dst_t_func[DST_ALG_RSAMD5],
DST_ALG_RSAMD5));
RETERR(dst__opensslrsa_init(&dst_t_func[DST_ALG_RSASHA1],
@@ -233,12 +238,16 @@ dst_lib_init2(isc_mem_t *mctx, isc_entropy_t *ectx,
RETERR(dst__opensslecdsa_init(&dst_t_func[DST_ALG_ECDSA384]));
#endif
#elif PKCS11CRYPTO
- RETERR(dst__pkcs11_init(mctx, engine));
- RETERR(dst__pkcs11rsa_init(&dst_t_func[DST_ALG_RSAMD5]));
- RETERR(dst__pkcs11rsa_init(&dst_t_func[DST_ALG_RSASHA1]));
- RETERR(dst__pkcs11rsa_init(&dst_t_func[DST_ALG_NSEC3RSASHA1]));
- RETERR(dst__pkcs11rsa_init(&dst_t_func[DST_ALG_RSASHA256]));
- RETERR(dst__pkcs11rsa_init(&dst_t_func[DST_ALG_RSASHA512]));
+ RETERR(dst__pkcs11rsa_init(&dst_t_func[DST_ALG_RSAMD5],
+ DST_ALG_RSAMD5));
+ RETERR(dst__pkcs11rsa_init(&dst_t_func[DST_ALG_RSASHA1],
+ DST_ALG_RSASHA1));
+ RETERR(dst__pkcs11rsa_init(&dst_t_func[DST_ALG_NSEC3RSASHA1],
+ DST_ALG_NSEC3RSASHA1));
+ RETERR(dst__pkcs11rsa_init(&dst_t_func[DST_ALG_RSASHA256],
+ DST_ALG_RSASHA256));
+ RETERR(dst__pkcs11rsa_init(&dst_t_func[DST_ALG_RSASHA512],
+ DST_ALG_RSASHA512));
RETERR(dst__pkcs11dsa_init(&dst_t_func[DST_ALG_DSA]));
RETERR(dst__pkcs11dsa_init(&dst_t_func[DST_ALG_NSEC3DSA]));
RETERR(dst__pkcs11dh_init(&dst_t_func[DST_ALG_DH]));
diff --git a/lib/dns/dst_internal.h b/lib/dns/dst_internal.h
index b15135e634..66d322a278 100644
--- a/lib/dns/dst_internal.h
+++ b/lib/dns/dst_internal.h
@@ -232,7 +232,8 @@ isc_result_t dst__hmacsha384_init(struct dst_func **funcp);
isc_result_t dst__hmacsha512_init(struct dst_func **funcp);
isc_result_t dst__opensslrsa_init(struct dst_func **funcp,
unsigned char algorithm);
-isc_result_t dst__pkcs11rsa_init(struct dst_func **funcp);
+isc_result_t dst__pkcs11rsa_init(struct dst_func **funcp,
+ unsigned char algorithm);
isc_result_t dst__openssldsa_init(struct dst_func **funcp);
isc_result_t dst__pkcs11dsa_init(struct dst_func **funcp);
isc_result_t dst__openssldh_init(struct dst_func **funcp);
diff --git a/lib/dns/dst_parse.c b/lib/dns/dst_parse.c
index ec622d9603..0e889cc740 100644
--- a/lib/dns/dst_parse.c
+++ b/lib/dns/dst_parse.c
@@ -40,6 +40,7 @@
#include <isc/dir.h>
#include <isc/fsaccess.h>
#include <isc/lex.h>
+#include <isc/md5.h>
#include <isc/mem.h>
#include <isc/stdtime.h>
#include <isc/string.h>
@@ -353,6 +354,10 @@ check_data(const dst_private_t *priv, const unsigned int alg,
/* XXXVIX this switch statement is too sparse to gen a jump table. */
switch (alg) {
case DST_ALG_RSAMD5:
+ if (isc_md5_available())
+ return (check_rsa(priv, external));
+ else
+ return (DST_R_UNSUPPORTEDALG);
case DST_ALG_RSASHA1:
case DST_ALG_NSEC3RSASHA1:
case DST_ALG_RSASHA256:
@@ -369,7 +374,10 @@ check_data(const dst_private_t *priv, const unsigned int alg,
case DST_ALG_ECDSA384:
return (check_ecdsa(priv, external));
case DST_ALG_HMACMD5:
- return (check_hmac_md5(priv, old));
+ if (isc_md5_available())
+ return (check_hmac_md5(priv, old));
+ else
+ return (DST_R_UNSUPPORTEDALG);
case DST_ALG_HMACSHA1:
return (check_hmac_sha(priv, HMACSHA1_NTAGS, alg));
case DST_ALG_HMACSHA224:
@@ -587,6 +595,8 @@ dst__privstruct_parse(dst_key_t *key, unsigned int alg, isc_lex_t *lex,
goto fail;
}
+ if (isc_md5_available() == ISC_FALSE && alg == DST_ALG_RSA)
+ alg = DST_ALG_RSASHA1;
check = check_data(priv, alg, ISC_TRUE, external);
if (check < 0) {
ret = DST_R_INVALIDPRIVATEKEY;
diff --git a/lib/dns/hmac_link.c b/lib/dns/hmac_link.c
index 3ac01a8c20..6b6801af1c 100644
--- a/lib/dns/hmac_link.c
+++ b/lib/dns/hmac_link.c
@@ -340,7 +340,7 @@ static dst_func_t hmacmd5_functions = {
isc_result_t
dst__hmacmd5_init(dst_func_t **funcp) {
REQUIRE(funcp != NULL);
- if (*funcp == NULL)
+ if (*funcp == NULL && isc_md5_available())
*funcp = &hmacmd5_functions;
return (ISC_R_SUCCESS);
}
diff --git a/lib/dns/opensslrsa_link.c b/lib/dns/opensslrsa_link.c
index 53c6d4bdd9..08291af016 100644
--- a/lib/dns/opensslrsa_link.c
+++ b/lib/dns/opensslrsa_link.c
@@ -1484,6 +1484,10 @@ dst__opensslrsa_init(dst_func_t **funcp, unsigned char algorithm) {
if (*funcp == NULL) {
switch (algorithm) {
+ case DST_ALG_RSAMD5:
+ if (isc_md5_available())
+ *funcp = &opensslrsa_functions;
+ break;
case DST_ALG_RSASHA256:
#if defined(HAVE_EVP_SHA256) || !USE_EVP
*funcp = &opensslrsa_functions;
diff --git a/lib/dns/pkcs11rsa_link.c b/lib/dns/pkcs11rsa_link.c
index 010d4b64fc..6b556bcd11 100644
--- a/lib/dns/pkcs11rsa_link.c
+++ b/lib/dns/pkcs11rsa_link.c
@@ -89,6 +89,9 @@ pkcs11rsa_createctx_sign(dst_key_t *key, dst_context_t *dctx) {
key->key_alg == DST_ALG_RSASHA256 ||
key->key_alg == DST_ALG_RSASHA512);
+ if (key->key_alg == DST_ALG_RSAMD5 && isc_md5_available() == ISC_FALSE)
+ return (ISC_R_FAILURE);
+
rsa = key->keydata.pkey;
pk11_ctx = (pk11_context_t *) isc_mem_get(dctx->mctx,
@@ -216,6 +219,8 @@ pkcs11rsa_createctx_sign(dst_key_t *key, dst_context_t *dctx) {
switch (dctx->key->key_alg) {
case DST_ALG_RSAMD5:
+ if (isc_md5_available() == ISC_FALSE)
+ return (ISC_R_FAILURE);
mech.mechanism = CKM_MD5_RSA_PKCS;
break;
case DST_ALG_RSASHA1:
@@ -297,6 +302,9 @@ pkcs11rsa_createctx_verify(dst_key_t *key, unsigned int maxbits,
key->key_alg == DST_ALG_RSASHA256 ||
key->key_alg == DST_ALG_RSASHA512);
+ if (key->key_alg == DST_ALG_RSAMD5 && isc_md5_available() == ISC_FALSE)
+ return (ISC_R_FAILURE);
+
rsa = key->keydata.pkey;
pk11_ctx = (pk11_context_t *) isc_mem_get(dctx->mctx,
@@ -350,6 +358,8 @@ pkcs11rsa_createctx_verify(dst_key_t *key, unsigned int maxbits,
switch (dctx->key->key_alg) {
case DST_ALG_RSAMD5:
+ if (isc_md5_available() == ISC_FALSE)
+ return (ISC_R_FAILURE);
mech.mechanism = CKM_MD5_RSA_PKCS;
break;
case DST_ALG_RSASHA1:
@@ -1565,11 +1575,20 @@ static dst_func_t pkcs11rsa_functions = {
};
isc_result_t
-dst__pkcs11rsa_init(dst_func_t **funcp) {
+dst__pkcs11rsa_init(dst_func_t **funcp, unsigned char algorithm) {
REQUIRE(funcp != NULL);
- if (*funcp == NULL)
- *funcp = &pkcs11rsa_functions;
+ if (*funcp == NULL) {
+ switch (algorithm) {
+ case DST_ALG_RSAMD5:
+ if (isc_md5_available())
+ *funcp = &pkcs11rsa_functions;
+ break;
+ default:
+ *funcp = &pkcs11rsa_functions;
+ break;
+ }
+ }
return (ISC_R_SUCCESS);
}
diff --git a/lib/dns/rcode.c b/lib/dns/rcode.c
index 091b3c70fb..c1251225d5 100644
--- a/lib/dns/rcode.c
+++ b/lib/dns/rcode.c
@@ -21,6 +21,7 @@
#include <ctype.h>
#include <isc/buffer.h>
+#include <isc/md5.h>
#include <isc/parseint.h>
#include <isc/print.h>
#include <isc/region.h>
@@ -310,17 +311,31 @@ dns_cert_totext(dns_cert_t cert, isc_buffer_t *target) {
return (dns_mnemonic_totext(cert, target, certs));
}
+static inline struct tbl *
+secalgs_tbl_start() {
+ struct tbl *algs = secalgs;
+
+ if (isc_md5_available() == ISC_FALSE) {
+ while (algs->name != NULL &&
+ algs->value == DNS_KEYALG_RSAMD5)
+ ++algs;
+ }
+ return algs;
+}
+
isc_result_t
dns_secalg_fromtext(dns_secalg_t *secalgp, isc_textregion_t *source) {
unsigned int value;
- RETERR(dns_mnemonic_fromtext(&value, source, secalgs, 0xff));
+
+ RETERR(dns_mnemonic_fromtext(&value, source,
+ secalgs_tbl_start(), 0xff));
*secalgp = value;
return (ISC_R_SUCCESS);
}
isc_result_t
dns_secalg_totext(dns_secalg_t secalg, isc_buffer_t *target) {
- return (dns_mnemonic_totext(secalg, target, secalgs));
+ return (dns_mnemonic_totext(secalg, target, secalgs_tbl_start()));
}
void
diff --git a/lib/dns/tests/tsig_test.c b/lib/dns/tests/tsig_test.c
index 956e4a0469..c4b2f84837 100644
--- a/lib/dns/tests/tsig_test.c
+++ b/lib/dns/tests/tsig_test.c
@@ -10,6 +10,7 @@
#include <config.h>
#include <atf-c.h>
+#include <isc/md5.h>
#include <isc/mem.h>
#include <dns/rdatalist.h>
diff --git a/lib/dns/tkey.c b/lib/dns/tkey.c
index 7343b4c26f..59a78c8dca 100644
--- a/lib/dns/tkey.c
+++ b/lib/dns/tkey.c
@@ -230,6 +230,9 @@ compute_secret(isc_buffer_t *shared, isc_region_t *queryrandomness,
unsigned char digests[32];
unsigned int i;
+ if (isc_md5_available() == ISC_FALSE)
+ return (ISC_R_NOTIMPLEMENTED);
+
isc_buffer_usedregion(shared, &r);
/*
@@ -298,6 +301,12 @@ process_dhtkey(dns_message_t *msg, dns_name_t *signer, dns_name_t *name,
return (DNS_R_REFUSED);
}
+ if (isc_md5_available() == ISC_FALSE) {
+ tkey_log("process_dhtkey: MD5 was disabled");
+ tkeyout->error = dns_tsigerror_badalg;
+ return (ISC_R_SUCCESS);
+ }
+
if (!dns_name_equal(&tkeyin->algorithm, DNS_TSIG_HMACMD5_NAME)) {
tkey_log("process_dhtkey: algorithms other than "
"hmac-md5 are not supported");
diff --git a/lib/dns/tsec.c b/lib/dns/tsec.c
index bfa6195d0d..fad645668c 100644
--- a/lib/dns/tsec.c
+++ b/lib/dns/tsec.c
@@ -18,6 +18,7 @@
#include <config.h>
+#include <isc/md5.h>
#include <isc/mem.h>
#include <dns/tsec.h>
@@ -66,7 +67,12 @@ dns_tsec_create(isc_mem_t *mctx, dns_tsectype_t type, dst_key_t *key,
case dns_tsectype_tsig:
switch (dst_key_alg(key)) {
case DST_ALG_HMACMD5:
- algname = dns_tsig_hmacmd5_name;
+ if (isc_md5_available()) {
+ algname = dns_tsig_hmacmd5_name;
+ } else {
+ isc_mem_put(mctx, tsec, sizeof(*tsec));
+ return (DNS_R_BADALG);
+ }
break;
case DST_ALG_HMACSHA1:
algname = dns_tsig_hmacsha1_name;
diff --git a/lib/dns/tsig.c b/lib/dns/tsig.c
index 325c901f93..804ef821f0 100644
--- a/lib/dns/tsig.c
+++ b/lib/dns/tsig.c
@@ -24,6 +24,7 @@
#include <isc/buffer.h>
#include <isc/mem.h>
+#include <isc/md5.h>
#include <isc/print.h>
#include <isc/refcount.h>
#include <isc/serial.h>
@@ -316,7 +317,7 @@ dns_tsigkey_createfromkey(dns_name_t *name, dns_name_t *algorithm,
goto cleanup_key;
(void)dns_name_downcase(&tkey->name, &tkey->name, NULL);
- if (dns_name_equal(algorithm, DNS_TSIG_HMACMD5_NAME)) {
+ if (dns_name_equal(algorithm, DNS_TSIG_HMACMD5_NAME) && isc_md5_available()) {
tkey->algorithm = DNS_TSIG_HMACMD5_NAME;
if (dstkey != NULL && dst_key_alg(dstkey) != DST_ALG_HMACMD5) {
ret = DNS_R_BADALG;
@@ -539,7 +540,7 @@ destroyring(dns_tsig_keyring_t *ring) {
static unsigned int
dst_alg_fromname(dns_name_t *algorithm) {
- if (dns_name_equal(algorithm, DNS_TSIG_HMACMD5_NAME)) {
+ if (dns_name_equal(algorithm, DNS_TSIG_HMACMD5_NAME) && isc_md5_available()) {
return (DST_ALG_HMACMD5);
} else if (dns_name_equal(algorithm, DNS_TSIG_HMACSHA1_NAME)) {
return (DST_ALG_HMACSHA1);
@@ -724,7 +725,7 @@ dns_tsigkey_create(dns_name_t *name, dns_name_t *algorithm,
if (length > 0)
REQUIRE(secret != NULL);
- if (dns_name_equal(algorithm, DNS_TSIG_HMACMD5_NAME)) {
+ if (dns_name_equal(algorithm, DNS_TSIG_HMACMD5_NAME) && isc_md5_available()) {
if (secret != NULL) {
isc_buffer_t b;
@@ -1322,7 +1323,8 @@ dns_tsig_verify(isc_buffer_t *source, dns_message_t *msg,
ret = dst_key_sigsize(key, &siglen);
if (ret != ISC_R_SUCCESS)
return (ret);
- if (alg == DST_ALG_HMACMD5 || alg == DST_ALG_HMACSHA1 ||
+ if ((alg == DST_ALG_HMACMD5 && isc_md5_available()) ||
+ alg == DST_ALG_HMACSHA1 ||
alg == DST_ALG_HMACSHA224 || alg == DST_ALG_HMACSHA256 ||
alg == DST_ALG_HMACSHA384 || alg == DST_ALG_HMACSHA512)
{
@@ -1484,9 +1486,7 @@ dns_tsig_verify(isc_buffer_t *source, dns_message_t *msg,
}
if (
-#ifndef PK11_MD5_DISABLE
- alg == DST_ALG_HMACMD5 ||
-#endif
+ (alg == DST_ALG_HMACMD5 && isc_md5_available()) ||
alg == DST_ALG_HMACSHA1 ||
alg == DST_ALG_HMACSHA224 || alg == DST_ALG_HMACSHA256 ||
alg == DST_ALG_HMACSHA384 || alg == DST_ALG_HMACSHA512)
@@ -1626,9 +1626,7 @@ tsig_verify_tcp(isc_buffer_t *source, dns_message_t *msg) {
if (ret != ISC_R_SUCCESS)
goto cleanup_querystruct;
if (
-#ifndef PK11_MD5_DISABLE
- alg == DST_ALG_HMACMD5 ||
-#endif
+ (alg == DST_ALG_HMACMD5 && isc_md5_available()) ||
alg == DST_ALG_HMACSHA1 ||
alg == DST_ALG_HMACSHA224 ||
alg == DST_ALG_HMACSHA256 ||
@@ -1801,9 +1799,7 @@ tsig_verify_tcp(isc_buffer_t *source, dns_message_t *msg) {
if (ret != ISC_R_SUCCESS)
goto cleanup_context;
if (
-#ifndef PK11_MD5_DISABLE
- alg == DST_ALG_HMACMD5 ||
-#endif
+ (alg == DST_ALG_HMACMD5 && isc_md5_available()) ||
alg == DST_ALG_HMACSHA1 ||
alg == DST_ALG_HMACSHA224 ||
alg == DST_ALG_HMACSHA256 ||
diff --git a/lib/isc/include/isc/md5.h b/lib/isc/include/isc/md5.h
index a2e00b382a..d4c2b8ab48 100644
--- a/lib/isc/include/isc/md5.h
+++ b/lib/isc/include/isc/md5.h
@@ -83,6 +83,9 @@ isc_md5_update(isc_md5_t *ctx, const unsigned char *buf, unsigned int len);
void
isc_md5_final(isc_md5_t *ctx, unsigned char *digest);
+isc_boolean_t
+isc_md5_available(void);
+
ISC_LANG_ENDDECLS
#endif /* ISC_MD5_H */
diff --git a/lib/isc/md5.c b/lib/isc/md5.c
index 2e3cf9a4a3..a5113df4b8 100644
--- a/lib/isc/md5.c
+++ b/lib/isc/md5.c
@@ -38,6 +38,7 @@
#include <isc/assertions.h>
#include <isc/md5.h>
+#include <isc/once.h>
#include <isc/platform.h>
#include <isc/string.h>
#include <isc/types.h>
@@ -51,6 +52,9 @@
#ifdef ISC_PLATFORM_OPENSSLHASH
+static isc_once_t available_once = ISC_ONCE_INIT;
+static isc_boolean_t available = ISC_FALSE;
+
void
isc_md5_init(isc_md5_t *ctx) {
EVP_DigestInit(ctx, EVP_md5());
@@ -71,8 +75,33 @@ isc_md5_final(isc_md5_t *ctx, unsigned char *digest) {
EVP_DigestFinal(ctx, digest, NULL);
}
+static void
+do_detect_available() {
+ isc_md5_t local;
+ isc_md5_t *ctx = &local;
+ unsigned char digest[ISC_MD5_DIGESTLENGTH];
+
+ ctx->ctx = EVP_MD_CTX_new();
+ RUNTIME_CHECK(ctx->ctx != NULL);
+ available = ISC_TF(EVP_DigestInit(ctx->ctx, EVP_md5()) == 1);
+ if (available)
+ (void)EVP_DigestFinal(ctx->ctx, digest, NULL);
+ EVP_MD_CTX_free(ctx->ctx);
+ ctx->ctx = NULL;
+}
+
+isc_boolean_t
+isc_md5_available() {
+ RUNTIME_CHECK(isc_once_do(&available_once, do_detect_available)
+ == ISC_R_SUCCESS);
+ return available;
+}
+
#elif PKCS11CRYPTO
+static isc_once_t available_once = ISC_ONCE_INIT;
+static isc_boolean_t available = ISC_FALSE;
+
void
isc_md5_init(isc_md5_t *ctx) {
CK_RV rv;
@@ -115,6 +144,31 @@ isc_md5_final(isc_md5_t *ctx, unsigned char *digest) {
pk11_return_session(ctx);
}
+static void
+do_detect_available() {
+ isc_md5_t local;
+ isc_md5_t *ctx = &local;
+ CK_RV rv;
+ CK_MECHANISM mech = { CKM_MD5, NULL, 0 };
+
+ if (pk11_get_session(ctx, OP_DIGEST, ISC_TRUE, ISC_FALSE,
+ ISC_FALSE, NULL, 0) == ISC_R_SUCCESS)
+ {
+ rv = pkcs_C_DigestInit(ctx->session, &mech);
+ isc_md5_invalidate(ctx);
+ available = (ISC_TF(rv == CKR_OK));
+ } else {
+ available = ISC_FALSE;
+ }
+}
+
+isc_boolean_t
+isc_md5_available() {
+ RUNTIME_CHECK(isc_once_do(&available_once, do_detect_available)
+ == ISC_R_SUCCESS);
+ return available;
+}
+
#else
static void
@@ -324,4 +378,9 @@ isc_md5_final(isc_md5_t *ctx, unsigned char *digest) {
memcpy(digest, ctx->buf, 16);
memset(ctx, 0, sizeof(isc_md5_t)); /* In case it's sensitive */
}
+
+isc_boolean_t
+isc_md5_available() {
+ return ISC_TRUE;
+}
#endif
diff --git a/lib/isc/pk11.c b/lib/isc/pk11.c
index de4479b7b0..6cce70f0cf 100644
--- a/lib/isc/pk11.c
+++ b/lib/isc/pk11.c
@@ -139,6 +139,8 @@
#define PK11_NO_LOGERR 1
#endif
+LIBISC_EXTERNAL_DATA isc_boolean_t pk11_verbose_init = ISC_FALSE;
+
static isc_once_t once = ISC_ONCE_INIT;
static isc_mem_t *pk11_mctx = NULL;
static isc_int32_t allocsize = 0;
@@ -283,13 +285,12 @@ pk11_initialize(isc_mem_t *mctx, const char *engine) {
LOCK(&alloclock);
if ((mctx != NULL) && (pk11_mctx == NULL) && (allocsize == 0))
isc_mem_attach(mctx, &pk11_mctx);
+ UNLOCK(&alloclock);
+
+ LOCK(&sessionlock);
if (initialized) {
- UNLOCK(&alloclock);
- return (ISC_R_SUCCESS);
- } else {
- LOCK(&sessionlock);
- initialized = ISC_TRUE;
- UNLOCK(&alloclock);
+ result = ISC_R_SUCCESS;
+ goto unlock;
}
ISC_LIST_INIT(tokens);
@@ -327,6 +328,7 @@ pk11_initialize(isc_mem_t *mctx, const char *engine) {
}
#endif
#endif /* PKCS11CRYPTO */
+ initialized = ISC_TRUE;
result = ISC_R_SUCCESS;
unlock:
UNLOCK(&sessionlock);
@@ -363,9 +365,14 @@ pk11_finalize(void) {
pk11_mem_put(token, sizeof(*token));
token = next;
}
+ LOCK(&alloclock);
if (pk11_mctx != NULL)
isc_mem_detach(&pk11_mctx);
+ UNLOCK(&alloclock);
+
+ LOCK(&sessionlock);
initialized = ISC_FALSE;
+ UNLOCK(&sessionlock);
return (ret);
}
@@ -655,6 +662,15 @@ token_login(pk11_session_t *sp) {
return (ret);
}
+#define PK11_TRACE(fmt) \
+ if (pk11_verbose_init) fprintf(stderr, fmt)
+#define PK11_TRACE1(fmt, arg) \
+ if (pk11_verbose_init) fprintf(stderr, fmt, arg)
+#define PK11_TRACE2(fmt, arg1, arg2) \
+ if (pk11_verbose_init) fprintf(stderr, fmt, arg1, arg2)
+#define PK11_TRACEM(mech) \
+ if (pk11_verbose_init) fprintf(stderr, #mech ": 0x%lx\n", rv)
+
static void
choose_slots(void) {
CK_MECHANISM_INFO mechInfo;
@@ -665,6 +681,8 @@ choose_slots(void) {
CK_ULONG slotCount;
pk11_token_t *token;
unsigned int i;
+ unsigned int best_rsa_algorithms = 0;
+ unsigned int best_digest_algorithms = 0;
slotCount = 0;
PK11_FATALCHECK(pkcs_C_GetSlotList, (CK_FALSE, NULL_PTR, &slotCount));
@@ -676,6 +694,8 @@ choose_slots(void) {
PK11_FATALCHECK(pkcs_C_GetSlotList, (CK_FALSE, slotList, &slotCount));
for (i = 0; i < slotCount; i++) {
+ unsigned int rsa_algorithms = 0;
+ unsigned int digest_algorithms = 0;
slot = slotList[i];
rv = pkcs_C_GetTokenInfo(slot, &tokenInfo);
@@ -708,8 +728,11 @@ choose_slots(void) {
&mechInfo);
if ((rv != CKR_OK) ||
((mechInfo.flags & CKF_SIGN) == 0) ||
- ((mechInfo.flags & CKF_VERIFY) == 0))
- goto try_dsa;
+ ((mechInfo.flags & CKF_VERIFY) == 0)) {
+ PK11_TRACEM(CKM_MD5_RSA_PKCS);
+ }
+ else
+ ++rsa_algorithms;
rv = pkcs_C_GetMechanismInfo(slot, CKM_SHA1_RSA_PKCS,
&mechInfo);
if ((rv != CKR_OK) ||
@@ -729,8 +752,14 @@ choose_slots(void) {
((mechInfo.flags & CKF_VERIFY) == 0))
goto try_dsa;
token->operations |= 1 << OP_RSA;
- if (best_rsa_token == NULL)
+ if (best_rsa_token == NULL) {
best_rsa_token = token;
+ best_rsa_algorithms = rsa_algorithms;
+ } else if (rsa_algorithms > best_rsa_algorithms) {
+ pk11_mem_put(best_rsa_token, sizeof(*best_rsa_token));
+ best_rsa_token = token;
+ best_rsa_algorithms = rsa_algorithms;
+ }
try_dsa:
rv = pkcs_C_GetMechanismInfo(slot, CKM_DSA_PARAMETER_GEN,
@@ -773,8 +802,11 @@ choose_slots(void) {
try_digest:
rv = pkcs_C_GetMechanismInfo(slot, CKM_MD5, &mechInfo);
- if ((rv != CKR_OK) || ((mechInfo.flags & CKF_DIGEST) == 0))
- continue;
+ if ((rv != CKR_OK) || ((mechInfo.flags & CKF_DIGEST) == 0)) {
+ PK11_TRACEM(CKM_MD5);
+ }
+ else
+ ++digest_algorithms;
rv = pkcs_C_GetMechanismInfo(slot, CKM_SHA_1, &mechInfo);
if ((rv != CKR_OK) || ((mechInfo.flags & CKF_DIGEST) == 0))
continue;
@@ -792,13 +824,15 @@ choose_slots(void) {
continue;
#ifdef PKCS11CRYPTOWITHHMAC
rv = pkcs_C_GetMechanismInfo(slot, CKM_MD5_HMAC, &mechInfo);
- if ((rv != CKR_OK) || ((mechInfo.flags & CKF_SIGN) == 0))
- continue;
+ if ((rv != CKR_OK) || ((mechInfo.flags & CKF_SIGN) == 0)) {
+ PK11_TRACEM(CKM_MD5_HMAC);
+ }
+ else
+ ++digest_algorithms;
#endif
rv = pkcs_C_GetMechanismInfo(slot, CKM_SHA_1_HMAC, &mechInfo);
if ((rv != CKR_OK) || ((mechInfo.flags & CKF_SIGN) == 0))
continue;
- rv = pkcs_C_GetMechanismInfo(slot, CKM_SHA224_HMAC, &mechInfo);
if ((rv != CKR_OK) || ((mechInfo.flags & CKF_SIGN) == 0))
continue;
rv = pkcs_C_GetMechanismInfo(slot, CKM_SHA256_HMAC, &mechInfo);
@@ -811,8 +845,14 @@ choose_slots(void) {
if ((rv != CKR_OK) || ((mechInfo.flags & CKF_SIGN) == 0))
continue;
token->operations |= 1 << OP_DIGEST;
- if (digest_token == NULL)
- digest_token = token;
+ if (digest_token == NULL) {
+ digest_token = token;
+ best_digest_algorithms = digest_algorithms;
+ } else if (digest_algorithms > best_digest_algorithms) {
+ pk11_mem_put(digest_token, sizeof(*digest_token));
+ digest_token = token;
+ best_digest_algorithms = digest_algorithms;
+ }
/* ECDSA requires digest */
rv = pkcs_C_GetMechanismInfo(slot, CKM_EC_KEY_PAIR_GEN,
diff --git a/lib/isccc/cc.c b/lib/isccc/cc.c
index 9428374cc1..ca3cff27c9 100644
--- a/lib/isccc/cc.c
+++ b/lib/isccc/cc.c
@@ -254,11 +254,15 @@ sign(unsigned char *data, unsigned int length, unsigned char *hmac,
switch (algorithm) {
case ISCCC_ALG_HMACMD5:
- isc_hmacmd5_init(&ctx.hmd5, secret->rstart,
- REGION_SIZE(*secret));
- isc_hmacmd5_update(&ctx.hmd5, data, length);
- isc_hmacmd5_sign(&ctx.hmd5, digest);
- source.rend = digest + ISC_MD5_DIGESTLENGTH;
+ if (isc_md5_available()) {
+ isc_hmacmd5_init(&ctx.hmd5, secret->rstart,
+ REGION_SIZE(*secret));
+ isc_hmacmd5_update(&ctx.hmd5, data, length);
+ isc_hmacmd5_sign(&ctx.hmd5, digest);
+ source.rend = digest + ISC_MD5_DIGESTLENGTH;
+ } else {
+ return (ISC_R_FAILURE);
+ }
break;
case ISCCC_ALG_HMACSHA1:
@@ -329,14 +333,14 @@ isccc_cc_towire(isccc_sexpr_t *alist, isccc_region_t *target,
{
unsigned char *hmac_rstart, *signed_rstart;
isc_result_t result;
+ const isc_boolean_t md5 = ISC_TF(algorithm == ISCCC_ALG_HMACMD5);
- if (algorithm == ISCCC_ALG_HMACMD5) {
- if (REGION_SIZE(*target) < 4 + sizeof(auth_hmd5))
- return (ISC_R_NOSPACE);
- } else {
- if (REGION_SIZE(*target) < 4 + sizeof(auth_hsha))
- return (ISC_R_NOSPACE);
- }
+ if (md5 && isc_md5_available() == ISC_FALSE)
+ return (ISC_R_NOTIMPLEMENTED);
+ if (REGION_SIZE(*target) < 4 + ((md5) ?
+ sizeof(auth_hmd5) :
+ sizeof(auth_hsha)))
+ return (ISC_R_NOSPACE);
/*
* Emit protocol version.
@@ -348,7 +352,7 @@ isccc_cc_towire(isccc_sexpr_t *alist, isccc_region_t *target,
* We'll replace the zeros with the real signature once
* we know what it is.
*/
- if (algorithm == ISCCC_ALG_HMACMD5) {
+ if (md5) {
hmac_rstart = target->rstart + HMD5_OFFSET;
PUT_MEM(auth_hmd5, sizeof(auth_hmd5), target->rstart);
} else {
@@ -404,7 +408,7 @@ verify(isccc_sexpr_t *alist, unsigned char *data, unsigned int length,
_auth = isccc_alist_lookup(alist, "_auth");
if (!isccc_alist_alistp(_auth))
return (ISC_R_FAILURE);
- if (algorithm == ISCCC_ALG_HMACMD5)
+ if (algorithm == ISCCC_ALG_HMACMD5 && isc_md5_available())
hmac = isccc_alist_lookup(_auth, "hmd5");
else
hmac = isccc_alist_lookup(_auth, "hsha");
@@ -417,12 +421,16 @@ verify(isccc_sexpr_t *alist, unsigned char *data, unsigned int length,
target.rstart = digestb64;
switch (algorithm) {
case ISCCC_ALG_HMACMD5:
- isc_hmacmd5_init(&ctx.hmd5, secret->rstart,
- REGION_SIZE(*secret));
- isc_hmacmd5_update(&ctx.hmd5, data, length);
- isc_hmacmd5_sign(&ctx.hmd5, digest);
- source.rend = digest + ISC_MD5_DIGESTLENGTH;
- break;
+ if (isc_md5_available()) {
+ isc_hmacmd5_init(&ctx.hmd5, secret->rstart,
+ REGION_SIZE(*secret));
+ isc_hmacmd5_update(&ctx.hmd5, data, length);
+ isc_hmacmd5_sign(&ctx.hmd5, digest);
+ source.rend = digest + ISC_MD5_DIGESTLENGTH;
+ break;
+ } else {
+ return (ISC_R_FAILURE);
+ }
case ISCCC_ALG_HMACSHA1:
isc_hmacsha1_init(&ctx.hsha, secret->rstart,
--
2.14.4