mirror of
https://gitlab.freedesktop.org/NetworkManager/NetworkManager
synced 2024-07-21 02:04:17 +00:00
3b69f02164
```bash
readarray -d '' FILES < <(
git ls-files -z \
':(exclude)po' \
':(exclude)shared/c-rbtree' \
':(exclude)shared/c-list' \
':(exclude)shared/c-siphash' \
':(exclude)shared/c-stdaux' \
':(exclude)shared/n-acd' \
':(exclude)shared/n-dhcp4' \
':(exclude)src/systemd/src' \
':(exclude)shared/systemd/src' \
':(exclude)m4' \
':(exclude)COPYING*'
)
sed \
-e 's/^\(--\|#\| \*\) *\(([cC]) *\)\?Copyright \+\(\(([cC])\) \+\)\?\(\(20\|19\)[0-9][0-9]\) *[-–] *\(\(20\|19\)[0-9][0-9]\) \+\([^ ].*\)$/\1 C1pyright#\5 - \7#\9/' \
-e 's/^\(--\|#\| \*\) *\(([cC]) *\)\?Copyright \+\(\(([cC])\) \+\)\?\(\(20\|19\)[0-9][0-9]\) *[,] *\(\(20\|19\)[0-9][0-9]\) \+\([^ ].*\)$/\1 C2pyright#\5, \7#\9/' \
-e 's/^\(--\|#\| \*\) *\(([cC]) *\)\?Copyright \+\(\(([cC])\) \+\)\?\(\(20\|19\)[0-9][0-9]\) \+\([^ ].*\)$/\1 C3pyright#\5#\7/' \
-e 's/^Copyright \(\(20\|19\)[0-9][0-9]\) \+\([^ ].*\)$/C4pyright#\1#\3/' \
-i \
"${FILES[@]}"
echo ">>> untouched Copyright lines"
git grep Copyright "${FILES[@]}"
echo ">>> Copyright lines with unusual extra"
git grep '\<C[0-9]pyright#' "${FILES[@]}" | grep -i reserved
sed \
-e 's/\<C[0-9]pyright#\([^#]*\)#\(.*\)$/Copyright (C) \1 \2/' \
-i \
"${FILES[@]}"
```
https://gitlab.freedesktop.org/NetworkManager/NetworkManager/merge_requests/298
404 lines
11 KiB
C
404 lines
11 KiB
C
// SPDX-License-Identifier: LGPL-2.1+
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/*
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* Dan Williams <dcbw@redhat.com>
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* Copyright (C) 2007 - 2015 Red Hat, Inc.
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*/
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#include "nm-default.h"
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#include "nm-crypto-impl.h"
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#include <gnutls/gnutls.h>
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#include <gnutls/crypto.h>
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#include <gnutls/x509.h>
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#include <gnutls/pkcs12.h>
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#include "nm-glib-aux/nm-secret-utils.h"
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#include "nm-errors.h"
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/*****************************************************************************/
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static gboolean
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_get_cipher_info (NMCryptoCipherType cipher,
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int *out_cipher_mech,
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guint8 *out_real_iv_len)
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{
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static const int cipher_mechs[] = {
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[NM_CRYPTO_CIPHER_DES_EDE3_CBC] = GNUTLS_CIPHER_3DES_CBC,
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[NM_CRYPTO_CIPHER_DES_CBC] = GNUTLS_CIPHER_DES_CBC,
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[NM_CRYPTO_CIPHER_AES_128_CBC] = GNUTLS_CIPHER_AES_128_CBC,
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[NM_CRYPTO_CIPHER_AES_192_CBC] = GNUTLS_CIPHER_AES_192_CBC,
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[NM_CRYPTO_CIPHER_AES_256_CBC] = GNUTLS_CIPHER_AES_256_CBC,
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};
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g_return_val_if_fail (_NM_INT_NOT_NEGATIVE (cipher) && (gsize) cipher < G_N_ELEMENTS (cipher_mechs), FALSE);
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if (cipher_mechs[cipher] == 0)
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return FALSE;
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NM_SET_OUT (out_cipher_mech, cipher_mechs[cipher]);
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NM_SET_OUT (out_real_iv_len, nm_crypto_cipher_get_info (cipher)->real_iv_len);
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return TRUE;
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}
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/*****************************************************************************/
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gboolean
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_nm_crypto_init (GError **error)
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{
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static gboolean initialized = FALSE;
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if (initialized)
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return TRUE;
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if (gnutls_global_init () != 0) {
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gnutls_global_deinit ();
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g_set_error_literal (error, NM_CRYPTO_ERROR,
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NM_CRYPTO_ERROR_FAILED,
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_("Failed to initialize the crypto engine."));
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return FALSE;
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}
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initialized = TRUE;
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return TRUE;
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}
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/*****************************************************************************/
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guint8 *
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_nmtst_crypto_decrypt (NMCryptoCipherType cipher,
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const guint8 *data,
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gsize data_len,
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const guint8 *iv,
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gsize iv_len,
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const guint8 *key,
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gsize key_len,
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gsize *out_len,
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GError **error)
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{
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gnutls_cipher_hd_t ctx;
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gnutls_datum_t key_dt, iv_dt;
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int err;
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int cipher_mech;
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nm_auto_clear_secret_ptr NMSecretPtr output = { 0 };
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guint8 pad_i, pad_len;
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guint8 real_iv_len;
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if (!_get_cipher_info (cipher, &cipher_mech, &real_iv_len)) {
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g_set_error (error, NM_CRYPTO_ERROR,
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NM_CRYPTO_ERROR_UNKNOWN_CIPHER,
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_("Unsupported key cipher for decryption"));
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return NULL;
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}
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if (!_nm_crypto_init (error))
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return NULL;
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if (iv_len < real_iv_len) {
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g_set_error (error, NM_CRYPTO_ERROR,
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NM_CRYPTO_ERROR_INVALID_DATA,
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_("Invalid IV length (must be at least %u)."),
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(guint) real_iv_len);
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return NULL;
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}
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output.len = data_len;
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output.bin = g_malloc (data_len);
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key_dt.data = (unsigned char *) key;
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key_dt.size = key_len;
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iv_dt.data = (unsigned char *) iv;
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iv_dt.size = iv_len;
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err = gnutls_cipher_init (&ctx, cipher_mech, &key_dt, &iv_dt);
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if (err < 0) {
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g_set_error (error, NM_CRYPTO_ERROR,
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NM_CRYPTO_ERROR_DECRYPTION_FAILED,
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_("Failed to initialize the decryption cipher context: %s (%s)"),
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gnutls_strerror_name (err), gnutls_strerror (err));
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return NULL;
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}
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err = gnutls_cipher_decrypt2 (ctx, data, data_len, output.bin, output.len);
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gnutls_cipher_deinit (ctx);
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if (err < 0) {
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g_set_error (error, NM_CRYPTO_ERROR,
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NM_CRYPTO_ERROR_DECRYPTION_FAILED,
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_("Failed to decrypt the private key: %s (%s)"),
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gnutls_strerror_name (err), gnutls_strerror (err));
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return NULL;
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}
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pad_len = output.len > 0
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? output.bin[output.len - 1]
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: 0;
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/* Check if the padding at the end of the decrypted data is valid */
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if ( pad_len == 0
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|| pad_len > real_iv_len) {
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g_set_error (error, NM_CRYPTO_ERROR,
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NM_CRYPTO_ERROR_DECRYPTION_FAILED,
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_("Failed to decrypt the private key: unexpected padding length."));
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return NULL;
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}
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/* Validate tail padding; last byte is the padding size, and all pad bytes
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* should contain the padding size.
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*/
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for (pad_i = 1; pad_i <= pad_len; ++pad_i) {
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if (output.bin[data_len - pad_i] != pad_len) {
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g_set_error (error, NM_CRYPTO_ERROR,
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NM_CRYPTO_ERROR_DECRYPTION_FAILED,
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_("Failed to decrypt the private key."));
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return NULL;
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}
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}
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*out_len = output.len - pad_len;
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return g_steal_pointer (&output.bin);
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}
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guint8 *
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_nmtst_crypto_encrypt (NMCryptoCipherType cipher,
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const guint8 *data,
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gsize data_len,
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const guint8 *iv,
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gsize iv_len,
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const guint8 *key,
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gsize key_len,
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gsize *out_len,
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GError **error)
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{
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gnutls_cipher_hd_t ctx;
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gnutls_datum_t key_dt, iv_dt;
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int err;
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int cipher_mech;
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nm_auto_clear_secret_ptr NMSecretPtr output = { 0 };
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nm_auto_clear_secret_ptr NMSecretPtr padded_buf = { 0 };
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gsize i, pad_len;
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nm_assert (iv_len);
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if ( cipher == NM_CRYPTO_CIPHER_DES_CBC
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|| !_get_cipher_info (cipher, &cipher_mech, NULL)) {
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g_set_error (error, NM_CRYPTO_ERROR,
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NM_CRYPTO_ERROR_UNKNOWN_CIPHER,
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_("Unsupported key cipher for encryption"));
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return NULL;
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}
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if (!_nm_crypto_init (error))
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return NULL;
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key_dt.data = (unsigned char *) key;
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key_dt.size = key_len;
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iv_dt.data = (unsigned char *) iv;
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iv_dt.size = iv_len;
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err = gnutls_cipher_init (&ctx, cipher_mech, &key_dt, &iv_dt);
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if (err < 0) {
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g_set_error (error, NM_CRYPTO_ERROR,
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NM_CRYPTO_ERROR_ENCRYPTION_FAILED,
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_("Failed to initialize the encryption cipher context: %s (%s)"),
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gnutls_strerror_name (err), gnutls_strerror (err));
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return NULL;
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}
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/* If data_len % ivlen == 0, then we add another complete block
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* onto the end so that the decrypter knows there's padding.
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*/
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pad_len = iv_len - (data_len % iv_len);
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padded_buf.len = data_len + pad_len;
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padded_buf.bin = g_malloc (padded_buf.len);
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memcpy (padded_buf.bin, data, data_len);
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for (i = 0; i < pad_len; i++)
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padded_buf.bin[data_len + i] = (guint8) (pad_len & 0xFF);
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output.len = padded_buf.len;
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output.bin = g_malloc (output.len);
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err = gnutls_cipher_encrypt2 (ctx, padded_buf.bin, padded_buf.len, output.bin, output.len);
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gnutls_cipher_deinit (ctx);
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if (err < 0) {
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g_set_error (error, NM_CRYPTO_ERROR,
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NM_CRYPTO_ERROR_ENCRYPTION_FAILED,
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_("Failed to encrypt the data: %s (%s)"),
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gnutls_strerror_name (err), gnutls_strerror (err));
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return NULL;
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}
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*out_len = output.len;
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return g_steal_pointer (&output.bin);
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}
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gboolean
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_nm_crypto_verify_x509 (const guint8 *data,
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gsize len,
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GError **error)
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{
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gnutls_x509_crt_t der;
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gnutls_datum_t dt;
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int err;
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if (!_nm_crypto_init (error))
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return FALSE;
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err = gnutls_x509_crt_init (&der);
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if (err < 0) {
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g_set_error (error, NM_CRYPTO_ERROR,
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NM_CRYPTO_ERROR_INVALID_DATA,
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_("Error initializing certificate data: %s"),
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gnutls_strerror (err));
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return FALSE;
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}
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/* Try DER first */
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dt.data = (unsigned char *) data;
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dt.size = len;
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err = gnutls_x509_crt_import (der, &dt, GNUTLS_X509_FMT_DER);
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if (err == GNUTLS_E_SUCCESS) {
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gnutls_x509_crt_deinit (der);
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return TRUE;
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}
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/* And PEM next */
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err = gnutls_x509_crt_import (der, &dt, GNUTLS_X509_FMT_PEM);
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gnutls_x509_crt_deinit (der);
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if (err == GNUTLS_E_SUCCESS)
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return TRUE;
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g_set_error (error, NM_CRYPTO_ERROR,
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NM_CRYPTO_ERROR_INVALID_DATA,
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_("Couldn't decode certificate: %s"),
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gnutls_strerror (err));
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return FALSE;
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}
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gboolean
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_nm_crypto_verify_pkcs12 (const guint8 *data,
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gsize data_len,
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const char *password,
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GError **error)
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{
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gnutls_pkcs12_t p12;
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gnutls_datum_t dt;
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int err;
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g_return_val_if_fail (data != NULL, FALSE);
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if (!_nm_crypto_init (error))
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return FALSE;
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dt.data = (unsigned char *) data;
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dt.size = data_len;
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err = gnutls_pkcs12_init (&p12);
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if (err < 0) {
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g_set_error (error, NM_CRYPTO_ERROR,
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NM_CRYPTO_ERROR_FAILED,
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_("Couldn't initialize PKCS#12 decoder: %s"),
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gnutls_strerror (err));
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return FALSE;
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}
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/* DER first */
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err = gnutls_pkcs12_import (p12, &dt, GNUTLS_X509_FMT_DER, 0);
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if (err < 0) {
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/* PEM next */
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err = gnutls_pkcs12_import (p12, &dt, GNUTLS_X509_FMT_PEM, 0);
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if (err < 0) {
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g_set_error (error, NM_CRYPTO_ERROR,
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NM_CRYPTO_ERROR_INVALID_DATA,
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_("Couldn't decode PKCS#12 file: %s"),
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gnutls_strerror (err));
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gnutls_pkcs12_deinit (p12);
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return FALSE;
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}
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}
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err = gnutls_pkcs12_verify_mac (p12, password);
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gnutls_pkcs12_deinit (p12);
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if (err != GNUTLS_E_SUCCESS) {
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g_set_error (error, NM_CRYPTO_ERROR,
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NM_CRYPTO_ERROR_DECRYPTION_FAILED,
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_("Couldn't verify PKCS#12 file: %s"),
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gnutls_strerror (err));
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return FALSE;
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}
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return TRUE;
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}
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gboolean
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_nm_crypto_verify_pkcs8 (const guint8 *data,
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gsize data_len,
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gboolean is_encrypted,
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const char *password,
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GError **error)
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{
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gnutls_x509_privkey_t p8;
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gnutls_datum_t dt;
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int err;
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g_return_val_if_fail (data != NULL, FALSE);
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if (!_nm_crypto_init (error))
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return FALSE;
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err = gnutls_x509_privkey_init (&p8);
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if (err < 0) {
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g_set_error (error, NM_CRYPTO_ERROR,
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NM_CRYPTO_ERROR_FAILED,
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_("Couldn't initialize PKCS#8 decoder: %s"),
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gnutls_strerror (err));
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return FALSE;
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}
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dt.data = (unsigned char *) data;
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dt.size = data_len;
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err = gnutls_x509_privkey_import_pkcs8 (p8,
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&dt,
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GNUTLS_X509_FMT_DER,
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is_encrypted ? password : NULL,
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is_encrypted ? 0 : GNUTLS_PKCS_PLAIN);
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gnutls_x509_privkey_deinit (p8);
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if (err < 0) {
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if (err == GNUTLS_E_UNKNOWN_CIPHER_TYPE) {
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/* HACK: gnutls < 3.5.4 doesn't support all the cipher types that openssl
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* can use with PKCS#8, so if we encounter one, we have to assume
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* the given password works. gnutls needs to unsuckify, apparently.
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* Specifically, by default openssl uses pbeWithMD5AndDES-CBC
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* which gnutls does not support.
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*/
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} else {
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g_set_error (error, NM_CRYPTO_ERROR,
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NM_CRYPTO_ERROR_INVALID_DATA,
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_("Couldn't decode PKCS#8 file: %s"),
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gnutls_strerror (err));
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return FALSE;
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}
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}
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return TRUE;
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}
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gboolean
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_nm_crypto_randomize (void *buffer, gsize buffer_len, GError **error)
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{
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if (!_nm_crypto_init (error))
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return FALSE;
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gnutls_rnd (GNUTLS_RND_RANDOM, buffer, buffer_len);
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return TRUE;
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}
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