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-rw-r--r--lib/dns/dst_parse.c856
1 files changed, 856 insertions, 0 deletions
diff --git a/lib/dns/dst_parse.c b/lib/dns/dst_parse.c
new file mode 100644
index 0000000..f31c33d
--- /dev/null
+++ b/lib/dns/dst_parse.c
@@ -0,0 +1,856 @@
+/*
+ * Portions Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * See the COPYRIGHT file distributed with this work for additional
+ * information regarding copyright ownership.
+ *
+ * Portions Copyright (C) Network Associates, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND ISC AND NETWORK ASSOCIATES DISCLAIMS
+ * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE
+ * FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+ * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <config.h>
+
+#include <inttypes.h>
+#include <stdbool.h>
+
+#include <isc/base64.h>
+#include <isc/dir.h>
+#include <isc/file.h>
+#include <isc/fsaccess.h>
+#include <isc/lex.h>
+#include <isc/mem.h>
+#include <isc/print.h>
+#include <isc/stdtime.h>
+#include <isc/string.h>
+#include <isc/util.h>
+
+#include <pk11/site.h>
+
+#include <dns/time.h>
+#include <dns/log.h>
+
+#include "dst_internal.h"
+#include "dst_parse.h"
+#include "dst/result.h"
+
+#define DST_AS_STR(t) ((t).value.as_textregion.base)
+
+#define PRIVATE_KEY_STR "Private-key-format:"
+#define ALGORITHM_STR "Algorithm:"
+
+#define TIMING_NTAGS (DST_MAX_TIMES + 1)
+static const char *timetags[TIMING_NTAGS] = {
+ "Created:",
+ "Publish:",
+ "Activate:",
+ "Revoke:",
+ "Inactive:",
+ "Delete:",
+ "DSPublish:",
+ "SyncPublish:",
+ "SyncDelete:"
+};
+
+#define NUMERIC_NTAGS (DST_MAX_NUMERIC + 1)
+static const char *numerictags[NUMERIC_NTAGS] = {
+ "Predecessor:",
+ "Successor:",
+ "MaxTTL:",
+ "RollPeriod:"
+};
+
+struct parse_map {
+ const int value;
+ const char *tag;
+};
+
+static struct parse_map map[] = {
+ {TAG_RSA_MODULUS, "Modulus:"},
+ {TAG_RSA_PUBLICEXPONENT, "PublicExponent:"},
+ {TAG_RSA_PRIVATEEXPONENT, "PrivateExponent:"},
+ {TAG_RSA_PRIME1, "Prime1:"},
+ {TAG_RSA_PRIME2, "Prime2:"},
+ {TAG_RSA_EXPONENT1, "Exponent1:"},
+ {TAG_RSA_EXPONENT2, "Exponent2:"},
+ {TAG_RSA_COEFFICIENT, "Coefficient:"},
+ {TAG_RSA_ENGINE, "Engine:" },
+ {TAG_RSA_LABEL, "Label:" },
+
+#ifndef PK11_DH_DISABLE
+ {TAG_DH_PRIME, "Prime(p):"},
+ {TAG_DH_GENERATOR, "Generator(g):"},
+ {TAG_DH_PRIVATE, "Private_value(x):"},
+ {TAG_DH_PUBLIC, "Public_value(y):"},
+#endif
+
+#ifndef PK11_DSA_DISABLE
+ {TAG_DSA_PRIME, "Prime(p):"},
+ {TAG_DSA_SUBPRIME, "Subprime(q):"},
+ {TAG_DSA_BASE, "Base(g):"},
+ {TAG_DSA_PRIVATE, "Private_value(x):"},
+ {TAG_DSA_PUBLIC, "Public_value(y):"},
+#endif
+
+ {TAG_GOST_PRIVASN1, "GostAsn1:"},
+ {TAG_GOST_PRIVRAW, "PrivateKey:"},
+
+ {TAG_ECDSA_PRIVATEKEY, "PrivateKey:"},
+ {TAG_ECDSA_ENGINE, "Engine:" },
+ {TAG_ECDSA_LABEL, "Label:" },
+
+ {TAG_EDDSA_PRIVATEKEY, "PrivateKey:"},
+ {TAG_EDDSA_ENGINE, "Engine:" },
+ {TAG_EDDSA_LABEL, "Label:" },
+
+#ifndef PK11_MD5_DISABLE
+ {TAG_HMACMD5_KEY, "Key:"},
+ {TAG_HMACMD5_BITS, "Bits:"},
+#endif
+
+ {TAG_HMACSHA1_KEY, "Key:"},
+ {TAG_HMACSHA1_BITS, "Bits:"},
+
+ {TAG_HMACSHA224_KEY, "Key:"},
+ {TAG_HMACSHA224_BITS, "Bits:"},
+
+ {TAG_HMACSHA256_KEY, "Key:"},
+ {TAG_HMACSHA256_BITS, "Bits:"},
+
+ {TAG_HMACSHA384_KEY, "Key:"},
+ {TAG_HMACSHA384_BITS, "Bits:"},
+
+ {TAG_HMACSHA512_KEY, "Key:"},
+ {TAG_HMACSHA512_BITS, "Bits:"},
+
+ {0, NULL}
+};
+
+static int
+find_value(const char *s, const unsigned int alg) {
+ int i;
+
+ for (i = 0; map[i].tag != NULL; i++) {
+ if (strcasecmp(s, map[i].tag) == 0 &&
+ (TAG_ALG(map[i].value) == alg))
+ return (map[i].value);
+ }
+ return (-1);
+}
+
+static const char *
+find_tag(const int value) {
+ int i;
+
+ for (i = 0; ; i++) {
+ if (map[i].tag == NULL)
+ return (NULL);
+ else if (value == map[i].value)
+ return (map[i].tag);
+ }
+}
+
+static int
+find_metadata(const char *s, const char *tags[], int ntags) {
+ int i;
+
+ for (i = 0; i < ntags; i++) {
+ if (tags[i] != NULL && strcasecmp(s, tags[i]) == 0)
+ return (i);
+ }
+
+ return (-1);
+}
+
+static int
+find_timedata(const char *s) {
+ return (find_metadata(s, timetags, TIMING_NTAGS));
+}
+
+static int
+find_numericdata(const char *s) {
+ return (find_metadata(s, numerictags, NUMERIC_NTAGS));
+}
+
+static int
+check_rsa(const dst_private_t *priv, bool external) {
+ int i, j;
+ bool have[RSA_NTAGS];
+ bool ok;
+ unsigned int mask;
+
+ if (external)
+ return ((priv->nelements == 0) ? 0 : -1);
+
+ for (i = 0; i < RSA_NTAGS; i++)
+ have[i] = false;
+
+ for (j = 0; j < priv->nelements; j++) {
+ for (i = 0; i < RSA_NTAGS; i++)
+ if (priv->elements[j].tag == TAG(DST_ALG_RSAMD5, i))
+ break;
+ if (i == RSA_NTAGS)
+ return (-1);
+ have[i] = true;
+ }
+
+ mask = (1ULL << TAG_SHIFT) - 1;
+
+ if (have[TAG_RSA_ENGINE & mask])
+ ok = have[TAG_RSA_MODULUS & mask] &&
+ have[TAG_RSA_PUBLICEXPONENT & mask] &&
+ have[TAG_RSA_LABEL & mask];
+ else
+ ok = have[TAG_RSA_MODULUS & mask] &&
+ have[TAG_RSA_PUBLICEXPONENT & mask] &&
+ have[TAG_RSA_PRIVATEEXPONENT & mask] &&
+ have[TAG_RSA_PRIME1 & mask] &&
+ have[TAG_RSA_PRIME2 & mask] &&
+ have[TAG_RSA_EXPONENT1 & mask] &&
+ have[TAG_RSA_EXPONENT2 & mask] &&
+ have[TAG_RSA_COEFFICIENT & mask];
+ return (ok ? 0 : -1 );
+}
+
+#ifndef PK11_DH_DISABLE
+static int
+check_dh(const dst_private_t *priv) {
+ int i, j;
+ if (priv->nelements != DH_NTAGS)
+ return (-1);
+ for (i = 0; i < DH_NTAGS; i++) {
+ for (j = 0; j < priv->nelements; j++)
+ if (priv->elements[j].tag == TAG(DST_ALG_DH, i))
+ break;
+ if (j == priv->nelements)
+ return (-1);
+ }
+ return (0);
+}
+#endif
+
+#ifndef PK11_DSA_DISABLE
+static int
+check_dsa(const dst_private_t *priv, bool external) {
+ int i, j;
+
+ if (external)
+ return ((priv->nelements == 0)? 0 : -1);
+
+ if (priv->nelements != DSA_NTAGS)
+ return (-1);
+
+ for (i = 0; i < DSA_NTAGS; i++) {
+ for (j = 0; j < priv->nelements; j++)
+ if (priv->elements[j].tag == TAG(DST_ALG_DSA, i))
+ break;
+ if (j == priv->nelements)
+ return (-1);
+ }
+ return (0);
+}
+#endif
+
+static int
+check_gost(const dst_private_t *priv, bool external) {
+
+ if (external)
+ return ((priv->nelements == 0)? 0 : -1);
+
+ if (priv->nelements != GOST_NTAGS)
+ return (-1);
+ if ((priv->elements[0].tag != TAG(DST_ALG_ECCGOST, 0)) &&
+ (priv->elements[0].tag != TAG(DST_ALG_ECCGOST, 1)))
+ return (-1);
+ return (0);
+}
+
+static int
+check_ecdsa(const dst_private_t *priv, bool external) {
+ int i, j;
+ bool have[ECDSA_NTAGS];
+ bool ok;
+ unsigned int mask;
+
+ if (external)
+ return ((priv->nelements == 0) ? 0 : -1);
+
+ for (i = 0; i < ECDSA_NTAGS; i++)
+ have[i] = false;
+ for (j = 0; j < priv->nelements; j++) {
+ for (i = 0; i < ECDSA_NTAGS; i++)
+ if (priv->elements[j].tag == TAG(DST_ALG_ECDSA256, i))
+ break;
+ if (i == ECDSA_NTAGS)
+ return (-1);
+ have[i] = true;
+ }
+
+ mask = (1ULL << TAG_SHIFT) - 1;
+
+ if (have[TAG_ECDSA_ENGINE & mask])
+ ok = have[TAG_ECDSA_LABEL & mask];
+ else
+ ok = have[TAG_ECDSA_PRIVATEKEY & mask];
+ return (ok ? 0 : -1 );
+}
+
+static int
+check_eddsa(const dst_private_t *priv, bool external) {
+ int i, j;
+ bool have[EDDSA_NTAGS];
+ bool ok;
+ unsigned int mask;
+
+ if (external)
+ return ((priv->nelements == 0) ? 0 : -1);
+
+ for (i = 0; i < EDDSA_NTAGS; i++)
+ have[i] = false;
+ for (j = 0; j < priv->nelements; j++) {
+ for (i = 0; i < EDDSA_NTAGS; i++)
+ if (priv->elements[j].tag == TAG(DST_ALG_ED25519, i))
+ break;
+ if (i == EDDSA_NTAGS)
+ return (-1);
+ have[i] = true;
+ }
+
+ mask = (1ULL << TAG_SHIFT) - 1;
+
+ if (have[TAG_EDDSA_ENGINE & mask])
+ ok = have[TAG_EDDSA_LABEL & mask];
+ else
+ ok = have[TAG_EDDSA_PRIVATEKEY & mask];
+ return (ok ? 0 : -1 );
+}
+
+#ifndef PK11_MD5_DISABLE
+static int
+check_hmac_md5(const dst_private_t *priv, bool old) {
+ int i, j;
+
+ if (priv->nelements != HMACMD5_NTAGS) {
+ /*
+ * If this is a good old format and we are accepting
+ * the old format return success.
+ */
+ if (old && priv->nelements == OLD_HMACMD5_NTAGS &&
+ priv->elements[0].tag == TAG_HMACMD5_KEY)
+ return (0);
+ return (-1);
+ }
+ /*
+ * We must be new format at this point.
+ */
+ for (i = 0; i < HMACMD5_NTAGS; i++) {
+ for (j = 0; j < priv->nelements; j++)
+ if (priv->elements[j].tag == TAG(DST_ALG_HMACMD5, i))
+ break;
+ if (j == priv->nelements)
+ return (-1);
+ }
+ return (0);
+}
+#endif
+
+static int
+check_hmac_sha(const dst_private_t *priv, unsigned int ntags,
+ unsigned int alg)
+{
+ unsigned int i, j;
+ if (priv->nelements != ntags)
+ return (-1);
+ for (i = 0; i < ntags; i++) {
+ for (j = 0; j < priv->nelements; j++)
+ if (priv->elements[j].tag == TAG(alg, i))
+ break;
+ if (j == priv->nelements)
+ return (-1);
+ }
+ return (0);
+}
+
+static int
+check_data(const dst_private_t *priv, const unsigned int alg,
+ bool old, bool external)
+{
+#ifdef PK11_MD5_DISABLE
+ UNUSED(old);
+#endif
+ /* XXXVIX this switch statement is too sparse to gen a jump table. */
+ switch (alg) {
+#ifndef PK11_MD5_DISABLE
+ case DST_ALG_RSAMD5:
+#endif
+ case DST_ALG_RSASHA1:
+ case DST_ALG_NSEC3RSASHA1:
+ case DST_ALG_RSASHA256:
+ case DST_ALG_RSASHA512:
+ return (check_rsa(priv, external));
+#ifndef PK11_DH_DISABLE
+ case DST_ALG_DH:
+ return (check_dh(priv));
+#endif
+#ifndef PK11_DSA_DISABLE
+ case DST_ALG_DSA:
+ case DST_ALG_NSEC3DSA:
+ return (check_dsa(priv, external));
+#endif
+ case DST_ALG_ECCGOST:
+ return (check_gost(priv, external));
+ case DST_ALG_ECDSA256:
+ case DST_ALG_ECDSA384:
+ return (check_ecdsa(priv, external));
+ case DST_ALG_ED25519:
+ case DST_ALG_ED448:
+ return (check_eddsa(priv, external));
+#ifndef PK11_MD5_DISABLE
+ case DST_ALG_HMACMD5:
+ return (check_hmac_md5(priv, old));
+#endif
+ case DST_ALG_HMACSHA1:
+ return (check_hmac_sha(priv, HMACSHA1_NTAGS, alg));
+ case DST_ALG_HMACSHA224:
+ return (check_hmac_sha(priv, HMACSHA224_NTAGS, alg));
+ case DST_ALG_HMACSHA256:
+ return (check_hmac_sha(priv, HMACSHA256_NTAGS, alg));
+ case DST_ALG_HMACSHA384:
+ return (check_hmac_sha(priv, HMACSHA384_NTAGS, alg));
+ case DST_ALG_HMACSHA512:
+ return (check_hmac_sha(priv, HMACSHA512_NTAGS, alg));
+ default:
+ return (DST_R_UNSUPPORTEDALG);
+ }
+}
+
+void
+dst__privstruct_free(dst_private_t *priv, isc_mem_t *mctx) {
+ int i;
+
+ if (priv == NULL)
+ return;
+ for (i = 0; i < priv->nelements; i++) {
+ if (priv->elements[i].data == NULL)
+ continue;
+ memset(priv->elements[i].data, 0, MAXFIELDSIZE);
+ isc_mem_put(mctx, priv->elements[i].data, MAXFIELDSIZE);
+ }
+ priv->nelements = 0;
+}
+
+isc_result_t
+dst__privstruct_parse(dst_key_t *key, unsigned int alg, isc_lex_t *lex,
+ isc_mem_t *mctx, dst_private_t *priv)
+{
+ int n = 0, major, minor, check;
+ isc_buffer_t b;
+ isc_token_t token;
+ unsigned char *data = NULL;
+ unsigned int opt = ISC_LEXOPT_EOL;
+ isc_stdtime_t when;
+ isc_result_t ret;
+ bool external = false;
+
+ REQUIRE(priv != NULL);
+
+ priv->nelements = 0;
+ memset(priv->elements, 0, sizeof(priv->elements));
+
+#define NEXTTOKEN(lex, opt, token) \
+ do { \
+ ret = isc_lex_gettoken(lex, opt, token); \
+ if (ret != ISC_R_SUCCESS) \
+ goto fail; \
+ } while (0)
+
+#define READLINE(lex, opt, token) \
+ do { \
+ ret = isc_lex_gettoken(lex, opt, token); \
+ if (ret == ISC_R_EOF) \
+ break; \
+ else if (ret != ISC_R_SUCCESS) \
+ goto fail; \
+ } while ((*token).type != isc_tokentype_eol)
+
+ /*
+ * Read the description line.
+ */
+ NEXTTOKEN(lex, opt, &token);
+ if (token.type != isc_tokentype_string ||
+ strcmp(DST_AS_STR(token), PRIVATE_KEY_STR) != 0)
+ {
+ ret = DST_R_INVALIDPRIVATEKEY;
+ goto fail;
+ }
+
+ NEXTTOKEN(lex, opt, &token);
+ if (token.type != isc_tokentype_string ||
+ (DST_AS_STR(token))[0] != 'v')
+ {
+ ret = DST_R_INVALIDPRIVATEKEY;
+ goto fail;
+ }
+ if (sscanf(DST_AS_STR(token), "v%d.%d", &major, &minor) != 2)
+ {
+ ret = DST_R_INVALIDPRIVATEKEY;
+ goto fail;
+ }
+
+ if (major > DST_MAJOR_VERSION) {
+ ret = DST_R_INVALIDPRIVATEKEY;
+ goto fail;
+ }
+
+ /*
+ * Store the private key format version number
+ */
+ dst_key_setprivateformat(key, major, minor);
+
+ READLINE(lex, opt, &token);
+
+ /*
+ * Read the algorithm line.
+ */
+ NEXTTOKEN(lex, opt, &token);
+ if (token.type != isc_tokentype_string ||
+ strcmp(DST_AS_STR(token), ALGORITHM_STR) != 0)
+ {
+ ret = DST_R_INVALIDPRIVATEKEY;
+ goto fail;
+ }
+
+ NEXTTOKEN(lex, opt | ISC_LEXOPT_NUMBER, &token);
+ if (token.type != isc_tokentype_number ||
+ token.value.as_ulong != (unsigned long) dst_key_alg(key))
+ {
+ ret = DST_R_INVALIDPRIVATEKEY;
+ goto fail;
+ }
+
+ READLINE(lex, opt, &token);
+
+ /*
+ * Read the key data.
+ */
+ for (n = 0; n < MAXFIELDS; n++) {
+ int tag;
+ isc_region_t r;
+ do {
+ ret = isc_lex_gettoken(lex, opt, &token);
+ if (ret == ISC_R_EOF)
+ goto done;
+ if (ret != ISC_R_SUCCESS)
+ goto fail;
+ } while (token.type == isc_tokentype_eol);
+
+ if (token.type != isc_tokentype_string) {
+ ret = DST_R_INVALIDPRIVATEKEY;
+ goto fail;
+ }
+
+ if (strcmp(DST_AS_STR(token), "External:") == 0) {
+ external = true;
+ goto next;
+ }
+
+ /* Numeric metadata */
+ tag = find_numericdata(DST_AS_STR(token));
+ if (tag >= 0) {
+ INSIST(tag < NUMERIC_NTAGS);
+
+ NEXTTOKEN(lex, opt | ISC_LEXOPT_NUMBER, &token);
+ if (token.type != isc_tokentype_number) {
+ ret = DST_R_INVALIDPRIVATEKEY;
+ goto fail;
+ }
+
+ dst_key_setnum(key, tag, token.value.as_ulong);
+ goto next;
+ }
+
+ /* Timing metadata */
+ tag = find_timedata(DST_AS_STR(token));
+ if (tag >= 0) {
+ INSIST(tag < TIMING_NTAGS);
+
+ NEXTTOKEN(lex, opt, &token);
+ if (token.type != isc_tokentype_string) {
+ ret = DST_R_INVALIDPRIVATEKEY;
+ goto fail;
+ }
+
+ ret = dns_time32_fromtext(DST_AS_STR(token), &when);
+ if (ret != ISC_R_SUCCESS)
+ goto fail;
+
+ dst_key_settime(key, tag, when);
+
+ goto next;
+ }
+
+ /* Key data */
+ tag = find_value(DST_AS_STR(token), alg);
+ if (tag < 0 && minor > DST_MINOR_VERSION)
+ goto next;
+ else if (tag < 0) {
+ ret = DST_R_INVALIDPRIVATEKEY;
+ goto fail;
+ }
+
+ priv->elements[n].tag = tag;
+
+ data = (unsigned char *) isc_mem_get(mctx, MAXFIELDSIZE);
+ if (data == NULL)
+ goto fail;
+
+ isc_buffer_init(&b, data, MAXFIELDSIZE);
+ ret = isc_base64_tobuffer(lex, &b, -1);
+ if (ret != ISC_R_SUCCESS)
+ goto fail;
+
+ isc_buffer_usedregion(&b, &r);
+ priv->elements[n].length = r.length;
+ priv->elements[n].data = r.base;
+ priv->nelements++;
+
+ next:
+ READLINE(lex, opt, &token);
+ data = NULL;
+ }
+
+ done:
+ if (external && priv->nelements != 0) {
+ ret = DST_R_INVALIDPRIVATEKEY;
+ goto fail;
+ }
+
+#ifdef PK11_MD5_DISABLE
+ check = check_data(priv, alg == DST_ALG_RSA ? DST_ALG_RSASHA1 : alg,
+ true, external);
+#else
+ check = check_data(priv, alg, true, external);
+#endif
+ if (check < 0) {
+ ret = DST_R_INVALIDPRIVATEKEY;
+ goto fail;
+ } else if (check != ISC_R_SUCCESS) {
+ ret = check;
+ goto fail;
+ }
+
+ key->external = external;
+
+ return (ISC_R_SUCCESS);
+
+fail:
+ dst__privstruct_free(priv, mctx);
+ if (data != NULL)
+ isc_mem_put(mctx, data, MAXFIELDSIZE);
+
+ return (ret);
+}
+
+isc_result_t
+dst__privstruct_writefile(const dst_key_t *key, const dst_private_t *priv,
+ const char *directory)
+{
+ FILE *fp;
+ isc_result_t result;
+ char filename[ISC_DIR_NAMEMAX];
+ char buffer[MAXFIELDSIZE * 2];
+ isc_fsaccess_t access;
+ isc_stdtime_t when;
+ uint32_t value;
+ isc_buffer_t b;
+ isc_region_t r;
+ int major, minor;
+ mode_t mode;
+ int i, ret;
+
+ REQUIRE(priv != NULL);
+
+ ret = check_data(priv, dst_key_alg(key), false, key->external);
+ if (ret < 0)
+ return (DST_R_INVALIDPRIVATEKEY);
+ else if (ret != ISC_R_SUCCESS)
+ return (ret);
+
+ isc_buffer_init(&b, filename, sizeof(filename));
+ result = dst_key_buildfilename(key, DST_TYPE_PRIVATE, directory, &b);
+ if (result != ISC_R_SUCCESS)
+ return (result);
+
+ result = isc_file_mode(filename, &mode);
+ if (result == ISC_R_SUCCESS && mode != 0600) {
+ /* File exists; warn that we are changing its permissions */
+ int level;
+
+#ifdef _WIN32
+ /* Windows security model is pretty different,
+ * e.g., there is no umask... */
+ level = ISC_LOG_NOTICE;
+#else
+ level = ISC_LOG_WARNING;
+#endif
+ isc_log_write(dns_lctx, DNS_LOGCATEGORY_GENERAL,
+ DNS_LOGMODULE_DNSSEC, level,
+ "Permissions on the file %s "
+ "have changed from 0%o to 0600 as "
+ "a result of this operation.",
+ filename, (unsigned int)mode);
+ }
+
+ if ((fp = fopen(filename, "w")) == NULL)
+ return (DST_R_WRITEERROR);
+
+ access = 0;
+ isc_fsaccess_add(ISC_FSACCESS_OWNER,
+ ISC_FSACCESS_READ | ISC_FSACCESS_WRITE,
+ &access);
+ (void)isc_fsaccess_set(filename, access);
+
+ dst_key_getprivateformat(key, &major, &minor);
+ if (major == 0 && minor == 0) {
+ major = DST_MAJOR_VERSION;
+ minor = DST_MINOR_VERSION;
+ }
+
+ /* XXXDCL return value should be checked for full filesystem */
+ fprintf(fp, "%s v%d.%d\n", PRIVATE_KEY_STR, major, minor);
+
+ fprintf(fp, "%s %u ", ALGORITHM_STR, dst_key_alg(key));
+
+ /* XXXVIX this switch statement is too sparse to gen a jump table. */
+ switch (dst_key_alg(key)) {
+ case DST_ALG_RSAMD5:
+ fprintf(fp, "(RSA)\n");
+ break;
+ case DST_ALG_DH:
+ fprintf(fp, "(DH)\n");
+ break;
+ case DST_ALG_DSA:
+ fprintf(fp, "(DSA)\n");
+ break;
+ case DST_ALG_RSASHA1:
+ fprintf(fp, "(RSASHA1)\n");
+ break;
+ case DST_ALG_NSEC3RSASHA1:
+ fprintf(fp, "(NSEC3RSASHA1)\n");
+ break;
+ case DST_ALG_NSEC3DSA:
+ fprintf(fp, "(NSEC3DSA)\n");
+ break;
+ case DST_ALG_RSASHA256:
+ fprintf(fp, "(RSASHA256)\n");
+ break;
+ case DST_ALG_RSASHA512:
+ fprintf(fp, "(RSASHA512)\n");
+ break;
+ case DST_ALG_ECCGOST:
+ fprintf(fp, "(ECC-GOST)\n");
+ break;
+ case DST_ALG_ECDSA256:
+ fprintf(fp, "(ECDSAP256SHA256)\n");
+ break;
+ case DST_ALG_ECDSA384:
+ fprintf(fp, "(ECDSAP384SHA384)\n");
+ break;
+ case DST_ALG_ED25519:
+ fprintf(fp, "(ED25519)\n");
+ break;
+ case DST_ALG_ED448:
+ fprintf(fp, "(ED448)\n");
+ break;
+ case DST_ALG_HMACMD5:
+ fprintf(fp, "(HMAC_MD5)\n");
+ break;
+ case DST_ALG_HMACSHA1:
+ fprintf(fp, "(HMAC_SHA1)\n");
+ break;
+ case DST_ALG_HMACSHA224:
+ fprintf(fp, "(HMAC_SHA224)\n");
+ break;
+ case DST_ALG_HMACSHA256:
+ fprintf(fp, "(HMAC_SHA256)\n");
+ break;
+ case DST_ALG_HMACSHA384:
+ fprintf(fp, "(HMAC_SHA384)\n");
+ break;
+ case DST_ALG_HMACSHA512:
+ fprintf(fp, "(HMAC_SHA512)\n");
+ break;
+ default:
+ fprintf(fp, "(?)\n");
+ break;
+ }
+
+ for (i = 0; i < priv->nelements; i++) {
+ const char *s;
+
+ s = find_tag(priv->elements[i].tag);
+
+ r.base = priv->elements[i].data;
+ r.length = priv->elements[i].length;
+ isc_buffer_init(&b, buffer, sizeof(buffer));
+ result = isc_base64_totext(&r, sizeof(buffer), "", &b);
+ if (result != ISC_R_SUCCESS) {
+ fclose(fp);
+ return (DST_R_INVALIDPRIVATEKEY);
+ }
+ isc_buffer_usedregion(&b, &r);
+
+ fprintf(fp, "%s %.*s\n", s, (int)r.length, r.base);
+ }
+
+ if (key->external)
+ fprintf(fp, "External:\n");
+
+ /* Add the metadata tags */
+ if (major > 1 || (major == 1 && minor >= 3)) {
+ for (i = 0; i < NUMERIC_NTAGS; i++) {
+ result = dst_key_getnum(key, i, &value);
+ if (result != ISC_R_SUCCESS)
+ continue;
+ fprintf(fp, "%s %u\n", numerictags[i], value);
+ }
+ for (i = 0; i < TIMING_NTAGS; i++) {
+ result = dst_key_gettime(key, i, &when);
+ if (result != ISC_R_SUCCESS)
+ continue;
+
+ isc_buffer_init(&b, buffer, sizeof(buffer));
+ result = dns_time32_totext(when, &b);
+ if (result != ISC_R_SUCCESS) {
+ fclose(fp);
+ return (DST_R_INVALIDPRIVATEKEY);
+ }
+
+ isc_buffer_usedregion(&b, &r);
+
+ fprintf(fp, "%s %.*s\n", timetags[i], (int)r.length,
+ r.base);
+ }
+ }
+
+ fflush(fp);
+ result = ferror(fp) ? DST_R_WRITEERROR : ISC_R_SUCCESS;
+ fclose(fp);
+ return (result);
+}
+
+/*! \file */
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-25 21:43:10 +0000