From 9fa0831af989818eb6f908815967590e56a19ab1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Petr=20Men=C5=A1=C3=ADk?= <pemensik@redhat.com>
Date: Thu, 2 Aug 2018 23:34:45 +0200
Subject: [PATCH] FIPS code changes
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Squashed commit of the following:
commit b49f70ce0575b6b52a71b90fe0376dbf16f92c6b
Author: Petr Menšík <pemensik@redhat.com>
Date: Mon Jan 22 14:12:37 2018 +0100
Update system tests to detect MD5 disabled at runtime
commit 80ceffee4860c24baf70bc9a8653d92731eda2e4
Author: Petr Menšík <pemensik@redhat.com>
Date: Thu Aug 2 14:53:54 2018 +0200
Avoid warning about undefined parameters
commit e4ad4363e3d1acaac58456117579f02761f38fdc
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 7e629a351010cb75e0589ec361f720085675998c
Author: Petr Menšík <pemensik@redhat.com>
Date: Fri Feb 23 21:21:30 2018 +0100
Cleanup only if initialization was successful
commit 2101b948c77cbcbe07eb4a1e60f3e693b2245ec6
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 7567c7edde7519115a9ae7e20818c835d3eb1ffe
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 5782137df6b45a6d900d5a1c250c1257227e917a
Author: Petr Menšík <pemensik@redhat.com>
Date: Mon Feb 5 10:21:27 2018 +0100
Change secalgs skipping to be more safe
commit f2d78729898182d2d19d5064de1bec9b66817159
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 32a2ad4abc7aaca1c257730319ad3c27405d3407
Author: Petr Menšík <pemensik@redhat.com>
Date: Wed Jan 31 11:38:12 2018 +0100
Make MD5 behave like unknown algorithm in TSIG.
commit 13cd3f704dce568fdf24a567be5802b58ac6007b
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 a71df74abdca4fe63bcdf542b81a109cf1f495b4
Author: Petr Menšík <pemensik@redhat.com>
Date: Mon Jan 22 16:17:44 2018 +0100
Handle MD5 unavailability from DST
commit dd82cb263efa2753d3ee772972726ea08bcc639b
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 c7b2f87f07ecae75b821a908e29f08a42371e32e
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 0b8e470ec636b9e350b5ec3203eb2b4091415fde
Author: Petr Menšík <pemensik@redhat.com>
Date: Mon Jan 22 07:21:04 2018 +0100
Add runtime detection whether MD5 is useable.
---
bin/confgen/keygen.c | 10 ++++-
bin/confgen/rndc-confgen.c | 32 ++++------------
bin/dig/dig.c | 7 ++--
bin/dig/dighost.c | 14 +++++--
bin/dnssec/dnssec-keygen.c | 14 +++++++
bin/named/config.c | 25 ++++++++++++-
bin/nsupdate/nsupdate.c | 24 +++++++-----
bin/rndc/rndc.c | 3 +-
bin/tests/optional/hash_test.c | 78 ++++++++++++++++++++-------------------
bin/tests/system/tkey/keycreate.c | 3 ++
bin/tests/system/tkey/keydelete.c | 17 ++++++---
lib/bind9/check.c | 10 +++++
lib/dns/dst_api.c | 23 ++++++++----
lib/dns/dst_internal.h | 3 +-
lib/dns/dst_parse.c | 18 +++++++--
lib/dns/hmac_link.c | 18 ++-------
lib/dns/opensslrsa_link.c | 6 +++
lib/dns/pkcs11rsa_link.c | 33 +++++++++++++++--
lib/dns/rcode.c | 21 ++++++++++-
lib/dns/tests/rsa_test.c | 29 ++++++++-------
lib/dns/tests/tsig_test.c | 1 +
lib/dns/tkey.c | 9 +++++
lib/dns/tsec.c | 8 +++-
lib/dns/tsig.c | 17 +++++----
lib/isc/include/isc/md5.h | 3 ++
lib/isc/md5.c | 59 +++++++++++++++++++++++++++++
lib/isc/pk11.c | 44 +++++++++++++++-------
lib/isc/tests/hash_test.c | 9 +++--
lib/isccc/cc.c | 42 +++++++++++++--------
29 files changed, 409 insertions(+), 171 deletions(-)
diff --git a/bin/confgen/keygen.c b/bin/confgen/keygen.c
index 8931ad5..5015abb 100644
--- a/bin/confgen/keygen.c
+++ b/bin/confgen/keygen.c
@@ -22,6 +22,7 @@
#include <isc/entropy.h>
#include <isc/file.h>
#include <isc/keyboard.h>
+#include <isc/md5.h>
#include <isc/mem.h>
#include <isc/print.h>
#include <isc/result.h>
@@ -73,7 +74,7 @@ alg_fromtext(const char *name) {
p = &name[5];
#ifndef PK11_MD5_DISABLE
- if (strcasecmp(p, "md5") == 0)
+ if (strcasecmp(p, "md5") == 0 && isc_md5_available())
return DST_ALG_HMACMD5;
#endif
if (strcasecmp(p, "sha1") == 0)
@@ -132,6 +133,13 @@ generate_key(isc_mem_t *mctx, const char *randomfile, dns_secalg_t alg,
switch (alg) {
#ifndef PK11_MD5_DISABLE
case DST_ALG_HMACMD5:
+ if (!isc_md5_available()) {
+ 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;
#endif
case DST_ALG_HMACSHA1:
case DST_ALG_HMACSHA224:
diff --git a/bin/confgen/rndc-confgen.c b/bin/confgen/rndc-confgen.c
index 5ca3d76..6b7790a 100644
--- a/bin/confgen/rndc-confgen.c
+++ b/bin/confgen/rndc-confgen.c
@@ -36,6 +36,7 @@
#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>
@@ -63,7 +64,7 @@ const char *progname;
bool verbose = false;
-const char *keyfile, *keydef;
+const char *keyfile, *keydef, *algdef;
ISC_PLATFORM_NORETURN_PRE static void
usage(int status) ISC_PLATFORM_NORETURN_POST;
@@ -71,13 +72,12 @@ usage(int status) ISC_PLATFORM_NORETURN_POST;
static void
usage(int status) {
-#ifndef PK11_MD5_DISABLE
fprintf(stderr, "\
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\
@@ -86,24 +86,7 @@ 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);
-#else
- fprintf(stderr, "\
-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-sha256)\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\
- -p port: the port named will listen on and rndc will connect to\n\
- -r randomfile: source of random data (use \"keyboard\" for key timing)\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);
-#endif
+ progname, keydef, algdef);
exit (status);
}
@@ -139,11 +122,12 @@ main(int argc, char **argv) {
progname = program;
keyname = DEFAULT_KEYNAME;
-#ifndef PK11_MD5_DISABLE
- alg = DST_ALG_HMACMD5;
-#else
alg = DST_ALG_HMACSHA256;
+#ifndef PK11_MD5_DISABLE
+ if (isc_md5_available())
+ alg = DST_ALG_HMACMD5;
#endif
+ algdef = alg_totext(alg);
serveraddr = DEFAULT_SERVER;
port = DEFAULT_PORT;
diff --git a/bin/dig/dig.c b/bin/dig/dig.c
index 39f74be..597e830 100644
--- a/bin/dig/dig.c
+++ b/bin/dig/dig.c
@@ -20,6 +20,7 @@
#include <ctype.h>
#include <isc/app.h>
+#include <isc/md5.h>
#include <isc/netaddr.h>
#include <isc/parseint.h>
#include <isc/platform.h>
@@ -1760,10 +1761,10 @@ dash_option(char *option, char *next, dig_lookup_t **lookup,
ptr = ptr2;
ptr2 = ptr3;
} else {
-#ifndef PK11_MD5_DISABLE
- hmacname = DNS_TSIG_HMACMD5_NAME;
-#else
hmacname = DNS_TSIG_HMACSHA256_NAME;
+#ifndef PK11_MD5_DISABLE
+ if (isc_md5_available())
+ hmacname = DNS_TSIG_HMACMD5_NAME;
#endif
digestbits = 0;
}
diff --git a/bin/dig/dighost.c b/bin/dig/dighost.c
index 1fa711a..341ed80 100644
--- a/bin/dig/dighost.c
+++ b/bin/dig/dighost.c
@@ -80,6 +80,7 @@
#include <isc/hex.h>
#include <isc/lang.h>
#include <isc/log.h>
+#include <isc/md5.h>
#include <isc/netaddr.h>
#include <isc/netdb.h>
#include <isc/parseint.h>
@@ -1246,9 +1247,10 @@ parse_hmac(const char *hmac) {
digestbits = 0;
#ifndef PK11_MD5_DISABLE
- 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
@@ -1368,7 +1370,13 @@ setup_file_key(void) {
switch (dst_key_alg(dstkey)) {
#ifndef PK11_MD5_DISABLE
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;
#endif
case DST_ALG_HMACSHA1:
diff --git a/bin/dnssec/dnssec-keygen.c b/bin/dnssec/dnssec-keygen.c
index 1476d0d..f5c9316 100644
--- a/bin/dnssec/dnssec-keygen.c
+++ b/bin/dnssec/dnssec-keygen.c
@@ -36,6 +36,7 @@
#include <isc/buffer.h>
#include <isc/commandline.h>
#include <isc/entropy.h>
+#include <isc/md5.h>
#include <isc/mem.h>
#include <isc/print.h>
#include <isc/region.h>
@@ -562,6 +563,19 @@ main(int argc, char **argv) {
"\"-a RSAMD5\"\n");
INSIST(freeit == NULL);
return (1);
+ } 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");
+ return (1);
+ }
+ } else if (strcasecmp(algname, "RSAMD5") == 0 &&
+ !isc_md5_available()) {
+ fprintf(stderr, "The use of RSAMD5 was disabled\n");
+ INSIST(freeit == NULL);
+ return (1);
} else if (strcasecmp(algname, "HMAC-MD5") == 0) {
alg = DST_ALG_HMACMD5;
#else
diff --git a/bin/named/config.c b/bin/named/config.c
index 2732a8f..2c4c93c 100644
--- a/bin/named/config.c
+++ b/bin/named/config.c
@@ -18,6 +18,7 @@
#include <isc/buffer.h>
#include <isc/log.h>
+#include <isc/md5.h>
#include <isc/mem.h>
#include <isc/parseint.h>
#include <isc/region.h>
@@ -967,6 +968,21 @@ ns_config_getkeyalgorithm(const char *str, dns_name_t **name,
return (ns_config_getkeyalgorithm2(str, name, NULL, digestbits));
}
+static inline int
+algorithms_start() {
+#ifndef PK11_MD5_DISABLE
+ if (!isc_md5_available()) {
+ int i = 0;
+ while (algorithms[i].str != NULL &&
+ algorithms[i].hmac == hmacmd5) {
+ i++;
+ }
+ return i;
+ }
+#endif
+ return 0;
+}
+
isc_result_t
ns_config_getkeyalgorithm2(const char *str, dns_name_t **name,
unsigned int *typep, uint16_t *digestbits)
@@ -976,7 +992,7 @@ ns_config_getkeyalgorithm2(const char *str, dns_name_t **name,
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' ||
@@ -999,7 +1015,12 @@ ns_config_getkeyalgorithm2(const char *str, dns_name_t **name,
if (name != NULL) {
switch (algorithms[i].hmac) {
#ifndef PK11_MD5_DISABLE
- 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);
+ }
#endif
case hmacsha1: *name = dns_tsig_hmacsha1_name; break;
case hmacsha224: *name = dns_tsig_hmacsha224_name; break;
diff --git a/bin/nsupdate/nsupdate.c b/bin/nsupdate/nsupdate.c
index 8d1da3b..5eefc57 100644
--- a/bin/nsupdate/nsupdate.c
+++ b/bin/nsupdate/nsupdate.c
@@ -31,6 +31,7 @@
#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>
@@ -476,9 +477,10 @@ parse_hmac(dns_name_t **hmac, const char *hmacstr, size_t len,
strlcpy(buf, hmacstr, ISC_MIN(len + 1, sizeof(buf)));
#ifndef PK11_MD5_DISABLE
- 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) {
@@ -591,10 +593,10 @@ setup_keystr(void) {
exit(1);
}
} else {
-#ifndef PK11_MD5_DISABLE
- hmacname = DNS_TSIG_HMACMD5_NAME;
-#else
hmacname = DNS_TSIG_HMACSHA256_NAME;
+#ifndef PK11_MD5_DISABLE
+ if (isc_md5_available())
+ hmacname = DNS_TSIG_HMACMD5_NAME;
#endif
name = keystr;
n = s;
@@ -731,7 +733,8 @@ setup_keyfile(isc_mem_t *mctx, isc_log_t *lctx) {
switch (dst_key_alg(dstkey)) {
#ifndef PK11_MD5_DISABLE
case DST_ALG_HMACMD5:
- hmacname = DNS_TSIG_HMACMD5_NAME;
+ if (isc_md5_available())
+ hmacname = DNS_TSIG_HMACMD5_NAME;
break;
#endif
case DST_ALG_HMACSHA1:
@@ -1606,12 +1609,13 @@ evaluate_key(char *cmdline) {
return (STATUS_SYNTAX);
}
namestr = n + 1;
- } else
-#ifndef PK11_MD5_DISABLE
- hmacname = DNS_TSIG_HMACMD5_NAME;
-#else
+ } else {
hmacname = DNS_TSIG_HMACSHA256_NAME;
+#ifndef PK11_MD5_DISABLE
+ if (isc_md5_available())
+ hmacname = DNS_TSIG_HMACMD5_NAME;
#endif
+ }
isc_buffer_init(&b, namestr, strlen(namestr));
isc_buffer_add(&b, strlen(namestr));
diff --git a/bin/rndc/rndc.c b/bin/rndc/rndc.c
index 9eb0ce0..8083654 100644
--- a/bin/rndc/rndc.c
+++ b/bin/rndc/rndc.c
@@ -23,6 +23,7 @@
#include <isc/file.h>
#include <isc/log.h>
#include <isc/net.h>
+#include <isc/md5.h>
#include <isc/mem.h>
#include <isc/print.h>
#include <isc/random.h>
@@ -636,7 +637,7 @@ parse_config(isc_mem_t *mctx, isc_log_t *log, const char *keyname,
algorithmstr = cfg_obj_asstring(algorithmobj);
#ifndef PK11_MD5_DISABLE
- if (strcasecmp(algorithmstr, "hmac-md5") == 0)
+ if (strcasecmp(algorithmstr, "hmac-md5") == 0 && isc_md5_available())
algorithm = ISCCC_ALG_HMACMD5;
else
#endif
diff --git a/bin/tests/optional/hash_test.c b/bin/tests/optional/hash_test.c
index bf2891a..b5f0a1c 100644
--- a/bin/tests/optional/hash_test.c
+++ b/bin/tests/optional/hash_test.c
@@ -90,43 +90,47 @@ main(int argc, char **argv) {
print_digest(s, "sha224", digest, ISC_SHA224_DIGESTLENGTH/4);
#ifndef PK11_MD5_DISABLE
- s = "abc";
- isc_md5_init(&md5);
- memmove(buffer, s, strlen(s));
- isc_md5_update(&md5, buffer, strlen(s));
- isc_md5_final(&md5, digest);
- print_digest(s, "md5", digest, 4);
-
- /*
- * The 3 HMAC-MD5 examples from RFC2104
- */
- s = "Hi There";
- memset(key, 0x0b, 16);
- isc_hmacmd5_init(&hmacmd5, key, 16);
- memmove(buffer, s, strlen(s));
- isc_hmacmd5_update(&hmacmd5, buffer, strlen(s));
- isc_hmacmd5_sign(&hmacmd5, digest);
- print_digest(s, "hmacmd5", digest, 4);
-
- s = "what do ya want for nothing?";
- strlcpy((char *)key, "Jefe", sizeof(key));
- isc_hmacmd5_init(&hmacmd5, key, 4);
- memmove(buffer, s, strlen(s));
- isc_hmacmd5_update(&hmacmd5, buffer, strlen(s));
- isc_hmacmd5_sign(&hmacmd5, digest);
- print_digest(s, "hmacmd5", digest, 4);
-
- s = "\335\335\335\335\335\335\335\335\335\335"
- "\335\335\335\335\335\335\335\335\335\335"
- "\335\335\335\335\335\335\335\335\335\335"
- "\335\335\335\335\335\335\335\335\335\335"
- "\335\335\335\335\335\335\335\335\335\335";
- memset(key, 0xaa, 16);
- isc_hmacmd5_init(&hmacmd5, key, 16);
- memmove(buffer, s, strlen(s));
- isc_hmacmd5_update(&hmacmd5, buffer, strlen(s));
- isc_hmacmd5_sign(&hmacmd5, digest);
- print_digest(s, "hmacmd5", digest, 4);
+ if (isc_md5_available()) {
+ s = "abc";
+ isc_md5_init(&md5);
+ memmove(buffer, s, strlen(s));
+ isc_md5_update(&md5, buffer, strlen(s));
+ isc_md5_final(&md5, digest);
+ print_digest(s, "md5", digest, 4);
+
+ /*
+ * The 3 HMAC-MD5 examples from RFC2104
+ */
+ s = "Hi There";
+ memset(key, 0x0b, 16);
+ isc_hmacmd5_init(&hmacmd5, key, 16);
+ memmove(buffer, s, strlen(s));
+ isc_hmacmd5_update(&hmacmd5, buffer, strlen(s));
+ isc_hmacmd5_sign(&hmacmd5, digest);
+ print_digest(s, "hmacmd5", digest, 4);
+
+ s = "what do ya want for nothing?";
+ strlcpy((char *)key, "Jefe", sizeof(key));
+ isc_hmacmd5_init(&hmacmd5, key, 4);
+ memmove(buffer, s, strlen(s));
+ isc_hmacmd5_update(&hmacmd5, buffer, strlen(s));
+ isc_hmacmd5_sign(&hmacmd5, digest);
+ print_digest(s, "hmacmd5", digest, 4);
+
+ s = "\335\335\335\335\335\335\335\335\335\335"
+ "\335\335\335\335\335\335\335\335\335\335"
+ "\335\335\335\335\335\335\335\335\335\335"
+ "\335\335\335\335\335\335\335\335\335\335"
+ "\335\335\335\335\335\335\335\335\335\335";
+ memset(key, 0xaa, 16);
+ isc_hmacmd5_init(&hmacmd5, key, 16);
+ memmove(buffer, s, strlen(s));
+ isc_hmacmd5_update(&hmacmd5, buffer, strlen(s));
+ isc_hmacmd5_sign(&hmacmd5, digest);
+ print_digest(s, "hmacmd5", digest, 4);
+ } else {
+ fprintf(stderr, "Skipping disabled MD5 algorithm\n");
+ }
#endif
/*
diff --git a/bin/tests/system/tkey/keycreate.c b/bin/tests/system/tkey/keycreate.c
index 5a00f86..653c951 100644
--- a/bin/tests/system/tkey/keycreate.c
+++ b/bin/tests/system/tkey/keycreate.c
@@ -20,6 +20,7 @@
#include <isc/entropy.h>
#include <isc/hash.h>
#include <isc/log.h>
+#include <isc/md5.h>
#include <isc/mem.h>
#include <isc/print.h>
#include <isc/sockaddr.h>
@@ -142,6 +143,8 @@ sendquery(isc_task_t *task, isc_event_t *event) {
static char keystr[] = "0123456789ab";
isc_event_free(&event);
+ if (!isc_md5_available())
+ CHECK("MD5 was disabled", ISC_R_NOTIMPLEMENTED);
result = ISC_R_FAILURE;
if (inet_pton(AF_INET, "10.53.0.1", &inaddr) != 1)
diff --git a/bin/tests/system/tkey/keydelete.c b/bin/tests/system/tkey/keydelete.c
index bde66a4..70a40c3 100644
--- a/bin/tests/system/tkey/keydelete.c
+++ b/bin/tests/system/tkey/keydelete.c
@@ -225,12 +225,17 @@ main(int argc, char **argv) {
result = dst_key_fromnamedfile(keyname, NULL, type, mctx, &dstkey);
CHECK("dst_key_fromnamedfile", result);
#ifndef PK11_MD5_DISABLE
- result = dns_tsigkey_createfromkey(dst_key_name(dstkey),
- DNS_TSIG_HMACMD5_NAME,
- dstkey, true, NULL, 0, 0,
- mctx, ring, &tsigkey);
- dst_key_free(&dstkey);
- CHECK("dns_tsigkey_createfromkey", result);
+ if (isc_md5_available()) {
+ result = dns_tsigkey_createfromkey(dst_key_name(dstkey),
+ DNS_TSIG_HMACMD5_NAME,
+ dstkey, true, NULL, 0, 0,
+ mctx, ring, &tsigkey);
+ dst_key_free(&dstkey);
+ CHECK("dns_tsigkey_createfromkey", result);
+ } else {
+ dst_key_free(&dstkey);
+ CHECK("MD5 was disabled", ISC_R_NOTIMPLEMENTED);
+ }
#else
dst_key_free(&dstkey);
CHECK("MD5 was disabled", ISC_R_NOTIMPLEMENTED);
diff --git a/lib/bind9/check.c b/lib/bind9/check.c
index d32a5a1..c749c27 100644
--- a/lib/bind9/check.c
+++ b/lib/bind9/check.c
@@ -23,6 +23,7 @@
#include <isc/file.h>
#include <isc/hex.h>
#include <isc/log.h>
+#include <isc/md5.h>
#include <isc/mem.h>
#include <isc/netaddr.h>
#include <isc/parseint.h>
@@ -2592,6 +2593,15 @@ bind9_check_key(const cfg_obj_t *key, isc_log_t *logctx) {
}
algorithm = cfg_obj_asstring(algobj);
+#ifndef PK11_MD5_DISABLE
+ /* Skip hmac-md5* algorithms */
+ if (!isc_md5_available() &&
+ strncasecmp(algorithm, "hmac-md5", 8) == 0) {
+ cfg_obj_log(algobj, logctx, ISC_LOG_ERROR,
+ "disabled algorithm '%s'", algorithm);
+ return (ISC_R_DISABLED);
+ }
+#endif
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 97fee68..5703f9c 100644
--- a/lib/dns/dst_api.c
+++ b/lib/dns/dst_api.c
@@ -192,6 +192,12 @@ 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
#ifndef PK11_MD5_DISABLE
RETERR(dst__hmacmd5_init(&dst_t_func[DST_ALG_HMACMD5]));
#endif
@@ -201,7 +207,6 @@ 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));
#ifndef PK11_MD5_DISABLE
RETERR(dst__opensslrsa_init(&dst_t_func[DST_ALG_RSAMD5],
DST_ALG_RSAMD5));
@@ -235,14 +240,18 @@ dst_lib_init2(isc_mem_t *mctx, isc_entropy_t *ectx,
RETERR(dst__openssleddsa_init(&dst_t_func[DST_ALG_ED448]));
#endif
#elif PKCS11CRYPTO
- RETERR(dst__pkcs11_init(mctx, engine));
#ifndef PK11_MD5_DISABLE
- RETERR(dst__pkcs11rsa_init(&dst_t_func[DST_ALG_RSAMD5]));
+ RETERR(dst__pkcs11rsa_init(&dst_t_func[DST_ALG_RSAMD5],
+ DST_ALG_RSAMD5));
#endif
- 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_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));
#ifndef PK11_DSA_DISABLE
RETERR(dst__pkcs11dsa_init(&dst_t_func[DST_ALG_DSA]));
RETERR(dst__pkcs11dsa_init(&dst_t_func[DST_ALG_NSEC3DSA]));
diff --git a/lib/dns/dst_internal.h b/lib/dns/dst_internal.h
index 6ee796c..3e55d44 100644
--- a/lib/dns/dst_internal.h
+++ b/lib/dns/dst_internal.h
@@ -250,7 +250,8 @@ 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);
#ifndef PK11_DSA_DISABLE
isc_result_t dst__openssldsa_init(struct dst_func **funcp);
isc_result_t dst__pkcs11dsa_init(struct dst_func **funcp);
diff --git a/lib/dns/dst_parse.c b/lib/dns/dst_parse.c
index f31c33d..87023a6 100644
--- a/lib/dns/dst_parse.c
+++ b/lib/dns/dst_parse.c
@@ -33,6 +33,7 @@
#include <isc/file.h>
#include <isc/fsaccess.h>
#include <isc/lex.h>
+#include <isc/md5.h>
#include <isc/mem.h>
#include <isc/print.h>
#include <isc/stdtime.h>
@@ -396,6 +397,10 @@ check_data(const dst_private_t *priv, const unsigned int alg,
switch (alg) {
#ifndef PK11_MD5_DISABLE
case DST_ALG_RSAMD5:
+ if (isc_md5_available())
+ return (check_rsa(priv, external));
+ else
+ return (DST_R_UNSUPPORTEDALG);
#endif
case DST_ALG_RSASHA1:
case DST_ALG_NSEC3RSASHA1:
@@ -421,7 +426,10 @@ check_data(const dst_private_t *priv, const unsigned int alg,
return (check_eddsa(priv, external));
#ifndef PK11_MD5_DISABLE
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);
#endif
case DST_ALG_HMACSHA1:
return (check_hmac_sha(priv, HMACSHA1_NTAGS, alg));
@@ -640,11 +648,13 @@ dst__privstruct_parse(dst_key_t *key, unsigned int alg, isc_lex_t *lex,
}
#ifdef PK11_MD5_DISABLE
- check = check_data(priv, alg == DST_ALG_RSA ? DST_ALG_RSASHA1 : alg,
- true, external);
+ if (alg == DST_ALG_RSA)
+ alg = DST_ALG_RSASHA1;
#else
- check = check_data(priv, alg, true, external);
+ if (!isc_md5_available() && alg == DST_ALG_RSA)
+ alg = DST_ALG_RSASHA1;
#endif
+ check = check_data(priv, alg, true, external);
if (check < 0) {
ret = DST_R_INVALIDPRIVATEKEY;
goto fail;
diff --git a/lib/dns/hmac_link.c b/lib/dns/hmac_link.c
index 94e73b1..d904075 100644
--- a/lib/dns/hmac_link.c
+++ b/lib/dns/hmac_link.c
@@ -340,20 +340,10 @@ static dst_func_t hmacmd5_functions = {
isc_result_t
dst__hmacmd5_init(dst_func_t **funcp) {
-#ifdef HAVE_FIPS_MODE
- /*
- * Problems from OpenSSL are likely from FIPS mode
- */
- int fips_mode = FIPS_mode();
-
- if (fips_mode != 0) {
- UNEXPECTED_ERROR(__FILE__, __LINE__,
- "FIPS mode is %d: MD5 is only supported "
- "if the value is 0.\n"
- "Please disable either FIPS mode or MD5.",
- fips_mode);
- }
-#endif
+
+ /* Intentionally skip initialization */
+ if (!isc_md5_available())
+ return (ISC_R_SUCCESS);
/*
* Prevent use of incorrect crypto
diff --git a/lib/dns/opensslrsa_link.c b/lib/dns/opensslrsa_link.c
index c03fd72..49b66fc 100644
--- a/lib/dns/opensslrsa_link.c
+++ b/lib/dns/opensslrsa_link.c
@@ -1802,6 +1802,12 @@ dst__opensslrsa_init(dst_func_t **funcp, unsigned char algorithm) {
if (*funcp == NULL) {
switch (algorithm) {
+#ifndef PK11_MD5_DISABLE
+ case DST_ALG_RSAMD5:
+ if (isc_md5_available())
+ *funcp = &opensslrsa_functions;
+ break;
+#endif
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 eb782c8..46fd844 100644
--- a/lib/dns/pkcs11rsa_link.c
+++ b/lib/dns/pkcs11rsa_link.c
@@ -96,10 +96,15 @@ pkcs11rsa_createctx_sign(dst_key_t *key, dst_context_t *dctx) {
#endif
/*
- * Reject incorrect RSA key lengths.
+ * Reject incorrect RSA key lengths or disabled algorithms.
*/
switch (dctx->key->key_alg) {
case DST_ALG_RSAMD5:
+#ifndef PK11_MD5_DISABLE
+ if (!isc_md5_available())
+ return (ISC_R_FAILURE);
+#endif
+ /* FALLTHROUGH */
case DST_ALG_RSASHA1:
case DST_ALG_NSEC3RSASHA1:
/* From RFC 3110 */
@@ -636,6 +641,9 @@ pkcs11rsa_createctx(dst_key_t *key, dst_context_t *dctx) {
switch (key->key_alg) {
#ifndef PK11_MD5_DISABLE
case DST_ALG_RSAMD5:
+ if (!isc_md5_available())
+ return (ISC_R_FAILURE);
+
mech.mechanism = CKM_MD5;
break;
#endif
@@ -792,6 +800,9 @@ pkcs11rsa_sign(dst_context_t *dctx, isc_buffer_t *sig) {
switch (key->key_alg) {
#ifndef PK11_MD5_DISABLE
case DST_ALG_RSAMD5:
+ if (!isc_md5_available())
+ return (ISC_R_FAILURE);
+
der = md5_der;
derlen = sizeof(md5_der);
hashlen = ISC_MD5_DIGESTLENGTH;
@@ -1016,6 +1027,9 @@ pkcs11rsa_verify(dst_context_t *dctx, const isc_region_t *sig) {
switch (key->key_alg) {
#ifndef PK11_MD5_DISABLE
case DST_ALG_RSAMD5:
+ if (!isc_md5_available())
+ return (ISC_R_FAILURE);
+
der = md5_der;
derlen = sizeof(md5_der);
hashlen = ISC_MD5_DIGESTLENGTH;
@@ -2219,11 +2233,22 @@ 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) {
+#ifndef PK11_MD5_DISABLE
+ case DST_ALG_RSAMD5:
+ if (isc_md5_available())
+ *funcp = &pkcs11rsa_functions;
+ break;
+#endif
+ default:
+ *funcp = &pkcs11rsa_functions;
+ break;
+ }
+ }
return (ISC_R_SUCCESS);
}
diff --git a/lib/dns/rcode.c b/lib/dns/rcode.c
index 6a5948e..010dd1b 100644
--- a/lib/dns/rcode.c
+++ b/lib/dns/rcode.c
@@ -16,6 +16,7 @@
#include <stdbool.h>
#include <isc/buffer.h>
+#include <isc/md5.h>
#include <isc/parseint.h>
#include <isc/print.h>
#include <isc/region.h>
@@ -349,17 +350,33 @@ 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;
+
+#ifndef PK11_MD5_DISABLE
+ if (!isc_md5_available()) {
+ while (algs->name != NULL &&
+ algs->value == DNS_KEYALG_RSAMD5)
+ ++algs;
+ }
+#endif
+ 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/rsa_test.c b/lib/dns/tests/rsa_test.c
index fb207ef..3ef0a4e 100644
--- a/lib/dns/tests/rsa_test.c
+++ b/lib/dns/tests/rsa_test.c
@@ -19,6 +19,7 @@
#include <stdio.h>
#include <string.h>
+#include <isc/md5.h>
#include <isc/util.h>
#include <isc/print.h>
@@ -225,23 +226,25 @@ ATF_TC_BODY(isc_rsa_verify, tc) {
/* RSAMD5 */
#ifndef PK11_MD5_DISABLE
- key->key_alg = DST_ALG_RSAMD5;
+ if (isc_md5_available()) {
+ key->key_alg = DST_ALG_RSAMD5;
- ret = dst_context_create3(key, mctx, DNS_LOGCATEGORY_DNSSEC,
- false, &ctx);
- ATF_REQUIRE_EQ(ret, ISC_R_SUCCESS);
+ ret = dst_context_create3(key, mctx, DNS_LOGCATEGORY_DNSSEC,
+ false, &ctx);
+ ATF_REQUIRE_EQ(ret, ISC_R_SUCCESS);
- r.base = d;
- r.length = 10;
- ret = dst_context_adddata(ctx, &r);
- ATF_REQUIRE_EQ(ret, ISC_R_SUCCESS);
+ r.base = d;
+ r.length = 10;
+ ret = dst_context_adddata(ctx, &r);
+ ATF_REQUIRE_EQ(ret, ISC_R_SUCCESS);
- r.base = sigmd5;
- r.length = 256;
- ret = dst_context_verify(ctx, &r);
- ATF_REQUIRE_EQ(ret, ISC_R_SUCCESS);
+ r.base = sigmd5;
+ r.length = 256;
+ ret = dst_context_verify(ctx, &r);
+ ATF_REQUIRE_EQ(ret, ISC_R_SUCCESS);
- dst_context_destroy(&ctx);
+ dst_context_destroy(&ctx);
+ }
#endif
/* RSASHA256 */
diff --git a/lib/dns/tests/tsig_test.c b/lib/dns/tests/tsig_test.c
index 443fb36..f003ff3 100644
--- a/lib/dns/tests/tsig_test.c
+++ b/lib/dns/tests/tsig_test.c
@@ -14,6 +14,7 @@
#include <config.h>
#include <atf-c.h>
+#include <isc/md5.h>
#include <isc/mem.h>
#include <isc/print.h>
diff --git a/lib/dns/tkey.c b/lib/dns/tkey.c
index 5b4ffd9..cc3469d 100644
--- a/lib/dns/tkey.c
+++ b/lib/dns/tkey.c
@@ -245,6 +245,9 @@ compute_secret(isc_buffer_t *shared, isc_region_t *queryrandomness,
unsigned char digests[32];
unsigned int i;
+ if (!isc_md5_available())
+ return (ISC_R_NOTIMPLEMENTED);
+
isc_buffer_usedregion(shared, &r);
/*
@@ -321,6 +324,12 @@ process_dhtkey(dns_message_t *msg, dns_name_t *signer, dns_name_t *name,
}
#ifndef PK11_MD5_DISABLE
+ if (!isc_md5_available()) {
+ 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 c5eca0e..19b9002 100644
--- a/lib/dns/tsec.c
+++ b/lib/dns/tsec.c
@@ -11,6 +11,7 @@
#include <config.h>
+#include <isc/md5.h>
#include <isc/mem.h>
#include <isc/util.h>
@@ -63,7 +64,12 @@ dns_tsec_create(isc_mem_t *mctx, dns_tsectype_t type, dst_key_t *key,
switch (dst_key_alg(key)) {
#ifndef PK11_MD5_DISABLE
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;
#endif
case DST_ALG_HMACSHA1:
diff --git a/lib/dns/tsig.c b/lib/dns/tsig.c
index a94ec69..f74c831 100644
--- a/lib/dns/tsig.c
+++ b/lib/dns/tsig.c
@@ -273,7 +273,8 @@ dns_tsigkey_createfromkey(dns_name_t *name, dns_name_t *algorithm,
(void)dns_name_downcase(&tkey->name, &tkey->name, NULL);
#ifndef PK11_MD5_DISABLE
- 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;
@@ -499,7 +500,8 @@ destroyring(dns_tsig_keyring_t *ring) {
static unsigned int
dst_alg_fromname(dns_name_t *algorithm) {
#ifndef PK11_MD5_DISABLE
- 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
#endif
@@ -683,7 +685,8 @@ dns_tsigkey_create(dns_name_t *name, dns_name_t *algorithm,
REQUIRE(secret != NULL);
#ifndef PK11_MD5_DISABLE
- 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;
@@ -1283,7 +1286,7 @@ dns_tsig_verify(isc_buffer_t *source, dns_message_t *msg,
return (ret);
if (
#ifndef PK11_MD5_DISABLE
- alg == DST_ALG_HMACMD5 ||
+ (alg == DST_ALG_HMACMD5 && isc_md5_available()) ||
#endif
alg == DST_ALG_HMACSHA1 ||
alg == DST_ALG_HMACSHA224 || alg == DST_ALG_HMACSHA256 ||
@@ -1452,7 +1455,7 @@ dns_tsig_verify(isc_buffer_t *source, dns_message_t *msg,
if (
#ifndef PK11_MD5_DISABLE
- alg == DST_ALG_HMACMD5 ||
+ (alg == DST_ALG_HMACMD5 && isc_md5_available()) ||
#endif
alg == DST_ALG_HMACSHA1 ||
alg == DST_ALG_HMACSHA224 || alg == DST_ALG_HMACSHA256 ||
@@ -1593,7 +1596,7 @@ tsig_verify_tcp(isc_buffer_t *source, dns_message_t *msg) {
goto cleanup_querystruct;
if (
#ifndef PK11_MD5_DISABLE
- alg == DST_ALG_HMACMD5 ||
+ (alg == DST_ALG_HMACMD5 && isc_md5_available()) ||
#endif
alg == DST_ALG_HMACSHA1 ||
alg == DST_ALG_HMACSHA224 ||
@@ -1772,7 +1775,7 @@ tsig_verify_tcp(isc_buffer_t *source, dns_message_t *msg) {
goto cleanup_context;
if (
#ifndef PK11_MD5_DISABLE
- alg == DST_ALG_HMACMD5 ||
+ (alg == DST_ALG_HMACMD5 && isc_md5_available()) ||
#endif
alg == DST_ALG_HMACSHA1 ||
alg == DST_ALG_HMACSHA224 ||
diff --git a/lib/isc/include/isc/md5.h b/lib/isc/include/isc/md5.h
index 4d29398..e3f5cec 100644
--- a/lib/isc/include/isc/md5.h
+++ b/lib/isc/include/isc/md5.h
@@ -91,6 +91,9 @@ isc_md5_final(isc_md5_t *ctx, unsigned char *digest);
bool
isc_md5_check(bool testing);
+bool
+isc_md5_available(void);
+
ISC_LANG_ENDDECLS
#endif /* !PK11_MD5_DISABLE */
diff --git a/lib/isc/md5.c b/lib/isc/md5.c
index 25c71a2..934a70c 100644
--- a/lib/isc/md5.c
+++ b/lib/isc/md5.c
@@ -37,6 +37,7 @@
#include <isc/assertions.h>
#include <isc/md5.h>
+#include <isc/once.h>
#include <isc/platform.h>
#include <isc/safe.h>
#include <isc/string.h>
@@ -55,6 +56,9 @@
#define EVP_MD_CTX_free(ptr) EVP_MD_CTX_cleanup(ptr)
#endif
+static isc_once_t available_once = ISC_ONCE_INIT;
+static bool available = false;
+
void
isc_md5_init(isc_md5_t *ctx) {
ctx->ctx = EVP_MD_CTX_new();
@@ -86,8 +90,33 @@ isc_md5_final(isc_md5_t *ctx, unsigned char *digest) {
ctx->ctx = 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 = (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;
+}
+
+bool
+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 bool available = false;
+
void
isc_md5_init(isc_md5_t *ctx) {
CK_RV rv;
@@ -130,6 +159,31 @@ 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, true, false,
+ false, NULL, 0) == ISC_R_SUCCESS)
+ {
+ rv = pkcs_C_DigestInit(ctx->session, &mech);
+ isc_md5_invalidate(ctx);
+ available = (rv == CKR_OK);
+ } else {
+ available = false;
+ }
+}
+
+bool
+isc_md5_available() {
+ RUNTIME_CHECK(isc_once_do(&available_once, do_detect_available)
+ == ISC_R_SUCCESS);
+ return available;
+}
+
#else
static void
@@ -339,6 +393,11 @@ isc_md5_final(isc_md5_t *ctx, unsigned char *digest) {
memmove(digest, ctx->buf, 16);
isc_safe_memwipe(ctx, sizeof(*ctx)); /* In case it's sensitive */
}
+
+bool
+isc_md5_available() {
+ return true;
+}
#endif
/*
diff --git a/lib/isc/pk11.c b/lib/isc/pk11.c
index c5d2310..a01e698 100644
--- a/lib/isc/pk11.c
+++ b/lib/isc/pk11.c
@@ -197,8 +197,6 @@ pk11_initialize(isc_mem_t *mctx, const char *engine) {
UNLOCK(&alloclock);
if (initialized) {
goto unlock;
- } else {
- initialized = true;
}
ISC_LIST_INIT(tokens);
@@ -236,6 +234,7 @@ pk11_initialize(isc_mem_t *mctx, const char *engine) {
result = PK11_R_NOAESSERVICE;
goto unlock;
}
+ initialized = true;
#endif
#endif /* PKCS11CRYPTO */
unlock:
@@ -589,6 +588,8 @@ scan_slots(void) {
pk11_token_t *token;
unsigned int i;
bool bad;
+ unsigned int best_rsa_algorithms = 0;
+ unsigned int best_digest_algorithms = 0;
slotCount = 0;
PK11_FATALCHECK(pkcs_C_GetSlotList, (CK_FALSE, NULL_PTR, &slotCount));
@@ -601,6 +602,8 @@ scan_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];
PK11_TRACE2("slot#%u=0x%lx\n", i, slot);
@@ -640,11 +643,12 @@ scan_slots(void) {
if ((rv != CKR_OK) ||
((mechInfo.flags & CKF_SIGN) == 0) ||
((mechInfo.flags & CKF_VERIFY) == 0)) {
-#if !defined(PK11_MD5_DISABLE) && !defined(PK11_RSA_PKCS_REPLACE)
- bad = true;
-#endif
PK11_TRACEM(CKM_MD5_RSA_PKCS);
}
+#if !defined(PK11_MD5_DISABLE) && !defined(PK11_RSA_PKCS_REPLACE)
+ else
+ ++rsa_algorithms;
+#endif
rv = pkcs_C_GetMechanismInfo(slot, CKM_SHA1_RSA_PKCS,
&mechInfo);
if ((rv != CKR_OK) ||
@@ -687,8 +691,14 @@ scan_slots(void) {
if (bad)
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:
bad = false;
@@ -756,11 +766,12 @@ scan_slots(void) {
bad = false;
rv = pkcs_C_GetMechanismInfo(slot, CKM_MD5, &mechInfo);
if ((rv != CKR_OK) || ((mechInfo.flags & CKF_DIGEST) == 0)) {
-#ifndef PK11_MD5_DISABLE
- bad = true;
-#endif
PK11_TRACEM(CKM_MD5);
}
+#ifndef PK11_MD5_DISABLE
+ else
+ ++digest_algorithms;
+#endif
rv = pkcs_C_GetMechanismInfo(slot, CKM_SHA_1, &mechInfo);
if ((rv != CKR_OK) || ((mechInfo.flags & CKF_DIGEST) == 0)) {
bad = true;
@@ -788,11 +799,12 @@ scan_slots(void) {
}
rv = pkcs_C_GetMechanismInfo(slot, CKM_MD5_HMAC, &mechInfo);
if ((rv != CKR_OK) || ((mechInfo.flags & CKF_SIGN) == 0)) {
-#if !defined(PK11_MD5_DISABLE) && !defined(PK11_MD5_HMAC_REPLACE)
- bad = true;
-#endif
PK11_TRACEM(CKM_MD5_HMAC);
}
+#if !defined(PK11_MD5_DISABLE) && !defined(PK11_MD5_HMAC_REPLACE)
+ else
+ ++digest_algorithms;
+#endif
rv = pkcs_C_GetMechanismInfo(slot, CKM_SHA_1_HMAC, &mechInfo);
if ((rv != CKR_OK) || ((mechInfo.flags & CKF_SIGN) == 0)) {
#ifndef PK11_SHA_1_HMAC_REPLACE
@@ -830,8 +842,14 @@ scan_slots(void) {
}
if (!bad) {
token->operations |= 1 << OP_DIGEST;
- if (digest_token == NULL)
+ 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 */
diff --git a/lib/isc/tests/hash_test.c b/lib/isc/tests/hash_test.c
index 8f12342..7eb1552 100644
--- a/lib/isc/tests/hash_test.c
+++ b/lib/isc/tests/hash_test.c
@@ -2009,7 +2009,8 @@ ATF_TP_ADD_TCS(tp) {
* various cryptographic hashes.
*/
#ifndef PK11_MD5_DISABLE
- ATF_TP_ADD_TC(tp, md5_check);
+ if (isc_md5_available())
+ ATF_TP_ADD_TC(tp, md5_check);
#endif
ATF_TP_ADD_TC(tp, sha1_check);
@@ -2017,7 +2018,8 @@ ATF_TP_ADD_TCS(tp) {
ATF_TP_ADD_TC(tp, isc_hash_function_reverse);
ATF_TP_ADD_TC(tp, isc_hash_initializer);
#ifndef PK11_MD5_DISABLE
- ATF_TP_ADD_TC(tp, isc_hmacmd5);
+ if (isc_md5_available())
+ ATF_TP_ADD_TC(tp, isc_hmacmd5);
#endif
ATF_TP_ADD_TC(tp, isc_hmacsha1);
ATF_TP_ADD_TC(tp, isc_hmacsha224);
@@ -2025,7 +2027,8 @@ ATF_TP_ADD_TCS(tp) {
ATF_TP_ADD_TC(tp, isc_hmacsha384);
ATF_TP_ADD_TC(tp, isc_hmacsha512);
#ifndef PK11_MD5_DISABLE
- ATF_TP_ADD_TC(tp, isc_md5);
+ if (isc_md5_available())
+ ATF_TP_ADD_TC(tp, isc_md5);
#endif
ATF_TP_ADD_TC(tp, isc_sha1);
ATF_TP_ADD_TC(tp, isc_sha224);
diff --git a/lib/isccc/cc.c b/lib/isccc/cc.c
index c2740cb..c314d76 100644
--- a/lib/isccc/cc.c
+++ b/lib/isccc/cc.c
@@ -272,11 +272,15 @@ sign(unsigned char *data, unsigned int length, unsigned char *hmac,
switch (algorithm) {
#ifndef PK11_MD5_DISABLE
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;
#endif
@@ -350,14 +354,18 @@ isccc_cc_towire(isccc_sexpr_t *alist, isc_buffer_t **buffer,
{
unsigned int hmac_base, signed_base;
isc_result_t result;
+ const bool md5 = (algorithm == ISCCC_ALG_HMACMD5);
#ifndef PK11_MD5_DISABLE
+ if (md5 && !isc_md5_available())
+ return (ISC_R_NOTIMPLEMENTED);
+
result = isc_buffer_reserve(buffer,
- 4 + ((algorithm == ISCCC_ALG_HMACMD5) ?
+ 4 + ((md5) ?
sizeof(auth_hmd5) :
sizeof(auth_hsha)));
#else
- if (algorithm == ISCCC_ALG_HMACMD5)
+ if (md5)
return (ISC_R_NOTIMPLEMENTED);
result = isc_buffer_reserve(buffer, 4 + sizeof(auth_hsha));
#endif
@@ -376,7 +384,7 @@ isccc_cc_towire(isccc_sexpr_t *alist, isc_buffer_t **buffer,
* we know what it is.
*/
#ifndef PK11_MD5_DISABLE
- if (algorithm == ISCCC_ALG_HMACMD5) {
+ if (md5) {
hmac_base = (*buffer)->used + HMD5_OFFSET;
isc_buffer_putmem(*buffer,
auth_hmd5, sizeof(auth_hmd5));
@@ -442,7 +450,7 @@ verify(isccc_sexpr_t *alist, unsigned char *data, unsigned int length,
if (!isccc_alist_alistp(_auth))
return (ISC_R_FAILURE);
#ifndef PK11_MD5_DISABLE
- if (algorithm == ISCCC_ALG_HMACMD5)
+ if (algorithm == ISCCC_ALG_HMACMD5 && isc_md5_available())
hmac = isccc_alist_lookup(_auth, "hmd5");
else
#endif
@@ -457,12 +465,16 @@ verify(isccc_sexpr_t *alist, unsigned char *data, unsigned int length,
switch (algorithm) {
#ifndef PK11_MD5_DISABLE
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);
+ }
#endif
case ISCCC_ALG_HMACSHA1:
--
2.14.4