Adding upstream version 16.2.upstream/16.2

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 360 insertions, 0 deletions

diff --git a/contrib/pgcrypto/pgp.c b/contrib/pgcrypto/pgp.c
new file mode 100644
index 0000000..8a6a6c2
--- /dev/null
+++ b/contrib/pgcrypto/pgp.c
@@ -0,0 +1,360 @@
+/*
+ * pgp.c
+ *	  Various utility stuff.
+ *
+ * Copyright (c) 2005 Marko Kreen
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *	  notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *	  notice, this list of conditions and the following disclaimer in the
+ *	  documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * contrib/pgcrypto/pgp.c
+ */
+
+#include "postgres.h"
+
+#include "pgp.h"
+#include "px.h"
+
+/*
+ * Defaults.
+ */
+static int	def_cipher_algo = PGP_SYM_AES_128;
+static int	def_s2k_cipher_algo = -1;
+static int	def_s2k_mode = PGP_S2K_ISALTED;
+static int	def_s2k_count = -1;
+static int	def_s2k_digest_algo = PGP_DIGEST_SHA1;
+static int	def_compress_algo = PGP_COMPR_NONE;
+static int	def_compress_level = 6;
+static int	def_disable_mdc = 0;
+static int	def_use_sess_key = 0;
+static int	def_text_mode = 0;
+static int	def_unicode_mode = 0;
+static int	def_convert_crlf = 0;
+
+struct digest_info
+{
+	const char *name;
+	int			code;
+};
+
+struct cipher_info
+{
+	const char *name;
+	int			code;
+	const char *int_name;
+	int			key_len;
+	int			block_len;
+};
+
+static const struct digest_info digest_list[] = {
+	{"md5", PGP_DIGEST_MD5},
+	{"sha1", PGP_DIGEST_SHA1},
+	{"sha-1", PGP_DIGEST_SHA1},
+	{"ripemd160", PGP_DIGEST_RIPEMD160},
+	{"sha256", PGP_DIGEST_SHA256},
+	{"sha384", PGP_DIGEST_SHA384},
+	{"sha512", PGP_DIGEST_SHA512},
+	{NULL, 0}
+};
+
+static const struct cipher_info cipher_list[] = {
+	{"3des", PGP_SYM_DES3, "3des-ecb", 192 / 8, 64 / 8},
+	{"cast5", PGP_SYM_CAST5, "cast5-ecb", 128 / 8, 64 / 8},
+	{"bf", PGP_SYM_BLOWFISH, "bf-ecb", 128 / 8, 64 / 8},
+	{"blowfish", PGP_SYM_BLOWFISH, "bf-ecb", 128 / 8, 64 / 8},
+	{"aes", PGP_SYM_AES_128, "aes-ecb", 128 / 8, 128 / 8},
+	{"aes128", PGP_SYM_AES_128, "aes-ecb", 128 / 8, 128 / 8},
+	{"aes192", PGP_SYM_AES_192, "aes-ecb", 192 / 8, 128 / 8},
+	{"aes256", PGP_SYM_AES_256, "aes-ecb", 256 / 8, 128 / 8},
+	{"twofish", PGP_SYM_TWOFISH, "twofish-ecb", 256 / 8, 128 / 8},
+	{NULL, 0, NULL}
+};
+
+static const struct cipher_info *
+get_cipher_info(int code)
+{
+	const struct cipher_info *i;
+
+	for (i = cipher_list; i->name; i++)
+		if (i->code == code)
+			return i;
+	return NULL;
+}
+
+int
+pgp_get_digest_code(const char *name)
+{
+	const struct digest_info *i;
+
+	for (i = digest_list; i->name; i++)
+		if (pg_strcasecmp(i->name, name) == 0)
+			return i->code;
+	return PXE_PGP_UNSUPPORTED_HASH;
+}
+
+int
+pgp_get_cipher_code(const char *name)
+{
+	const struct cipher_info *i;
+
+	for (i = cipher_list; i->name; i++)
+		if (pg_strcasecmp(i->name, name) == 0)
+			return i->code;
+	return PXE_PGP_UNSUPPORTED_CIPHER;
+}
+
+const char *
+pgp_get_digest_name(int code)
+{
+	const struct digest_info *i;
+
+	for (i = digest_list; i->name; i++)
+		if (i->code == code)
+			return i->name;
+	return NULL;
+}
+
+int
+pgp_get_cipher_key_size(int code)
+{
+	const struct cipher_info *i = get_cipher_info(code);
+
+	if (i != NULL)
+		return i->key_len;
+	return 0;
+}
+
+int
+pgp_get_cipher_block_size(int code)
+{
+	const struct cipher_info *i = get_cipher_info(code);
+
+	if (i != NULL)
+		return i->block_len;
+	return 0;
+}
+
+int
+pgp_load_cipher(int code, PX_Cipher **res)
+{
+	int			err;
+	const struct cipher_info *i = get_cipher_info(code);
+
+	if (i == NULL)
+		return PXE_PGP_CORRUPT_DATA;
+
+	err = px_find_cipher(i->int_name, res);
+	if (err == 0)
+		return 0;
+
+	return PXE_PGP_UNSUPPORTED_CIPHER;
+}
+
+int
+pgp_load_digest(int code, PX_MD **res)
+{
+	int			err;
+	const char *name = pgp_get_digest_name(code);
+
+	if (name == NULL)
+		return PXE_PGP_CORRUPT_DATA;
+
+	err = px_find_digest(name, res);
+	if (err == 0)
+		return 0;
+
+	return PXE_PGP_UNSUPPORTED_HASH;
+}
+
+int
+pgp_init(PGP_Context **ctx_p)
+{
+	PGP_Context *ctx;
+
+	ctx = palloc0(sizeof *ctx);
+
+	ctx->cipher_algo = def_cipher_algo;
+	ctx->s2k_cipher_algo = def_s2k_cipher_algo;
+	ctx->s2k_mode = def_s2k_mode;
+	ctx->s2k_count = def_s2k_count;
+	ctx->s2k_digest_algo = def_s2k_digest_algo;
+	ctx->compress_algo = def_compress_algo;
+	ctx->compress_level = def_compress_level;
+	ctx->disable_mdc = def_disable_mdc;
+	ctx->use_sess_key = def_use_sess_key;
+	ctx->unicode_mode = def_unicode_mode;
+	ctx->convert_crlf = def_convert_crlf;
+	ctx->text_mode = def_text_mode;
+
+	*ctx_p = ctx;
+	return 0;
+}
+
+int
+pgp_free(PGP_Context *ctx)
+{
+	if (ctx->pub_key)
+		pgp_key_free(ctx->pub_key);
+	px_memset(ctx, 0, sizeof *ctx);
+	pfree(ctx);
+	return 0;
+}
+
+int
+pgp_disable_mdc(PGP_Context *ctx, int disable)
+{
+	ctx->disable_mdc = disable ? 1 : 0;
+	return 0;
+}
+
+int
+pgp_set_sess_key(PGP_Context *ctx, int use)
+{
+	ctx->use_sess_key = use ? 1 : 0;
+	return 0;
+}
+
+int
+pgp_set_convert_crlf(PGP_Context *ctx, int doit)
+{
+	ctx->convert_crlf = doit ? 1 : 0;
+	return 0;
+}
+
+int
+pgp_set_s2k_mode(PGP_Context *ctx, int mode)
+{
+	int			err = PXE_OK;
+
+	switch (mode)
+	{
+		case PGP_S2K_SIMPLE:
+		case PGP_S2K_SALTED:
+		case PGP_S2K_ISALTED:
+			ctx->s2k_mode = mode;
+			break;
+		default:
+			err = PXE_ARGUMENT_ERROR;
+			break;
+	}
+	return err;
+}
+
+int
+pgp_set_s2k_count(PGP_Context *ctx, int count)
+{
+	if (ctx->s2k_mode == PGP_S2K_ISALTED && count >= 1024 && count <= 65011712)
+	{
+		ctx->s2k_count = count;
+		return PXE_OK;
+	}
+	return PXE_ARGUMENT_ERROR;
+}
+
+int
+pgp_set_compress_algo(PGP_Context *ctx, int algo)
+{
+	switch (algo)
+	{
+		case PGP_COMPR_NONE:
+		case PGP_COMPR_ZIP:
+		case PGP_COMPR_ZLIB:
+		case PGP_COMPR_BZIP2:
+			ctx->compress_algo = algo;
+			return 0;
+	}
+	return PXE_ARGUMENT_ERROR;
+}
+
+int
+pgp_set_compress_level(PGP_Context *ctx, int level)
+{
+	if (level >= 0 && level <= 9)
+	{
+		ctx->compress_level = level;
+		return 0;
+	}
+	return PXE_ARGUMENT_ERROR;
+}
+
+int
+pgp_set_text_mode(PGP_Context *ctx, int mode)
+{
+	ctx->text_mode = mode;
+	return 0;
+}
+
+int
+pgp_set_cipher_algo(PGP_Context *ctx, const char *name)
+{
+	int			code = pgp_get_cipher_code(name);
+
+	if (code < 0)
+		return code;
+	ctx->cipher_algo = code;
+	return 0;
+}
+
+int
+pgp_set_s2k_cipher_algo(PGP_Context *ctx, const char *name)
+{
+	int			code = pgp_get_cipher_code(name);
+
+	if (code < 0)
+		return code;
+	ctx->s2k_cipher_algo = code;
+	return 0;
+}
+
+int
+pgp_set_s2k_digest_algo(PGP_Context *ctx, const char *name)
+{
+	int			code = pgp_get_digest_code(name);
+
+	if (code < 0)
+		return code;
+	ctx->s2k_digest_algo = code;
+	return 0;
+}
+
+int
+pgp_get_unicode_mode(PGP_Context *ctx)
+{
+	return ctx->unicode_mode;
+}
+
+int
+pgp_set_unicode_mode(PGP_Context *ctx, int mode)
+{
+	ctx->unicode_mode = mode ? 1 : 0;
+	return 0;
+}
+
+int
+pgp_set_symkey(PGP_Context *ctx, const uint8 *key, int len)
+{
+	if (key == NULL || len < 1)
+		return PXE_ARGUMENT_ERROR;
+	ctx->sym_key = key;
+	ctx->sym_key_len = len;
+	return 0;
+}