1 /* vi: set noexpandtab sw=4 sts=4: */
2 /* opkg_pathfinder.c - the opkg package management system
4 Copyright (C) 2009 Camille Moncelier <moncelier@devlife.org>
6 This program is free software; you can redistribute it and/or
7 modify it under the terms of the GNU General Public License as
8 published by the Free Software Foundation; either version 2, or (at
9 your option) any later version.
11 This program is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 General Public License for more details.
18 #include <openssl/ssl.h>
19 #include <libpathfinder.h>
21 #if defined(HAVE_SSLCURL)
22 #include <curl/curl.h>
26 #include "libbb/libbb.h"
27 #include "opkg_message.h"
29 #if defined(HAVE_SSLCURL) || defined(HAVE_OPENSSL)
31 * This callback is called instead of X509_verify_cert to perform path
32 * validation on a certificate using pathfinder.
35 static int pathfinder_verify_callback(X509_STORE_CTX *ctx, void *arg)
38 const char *hex = "0123456789ABCDEF";
39 size_t size = i2d_X509(ctx->cert, NULL);
40 unsigned char *keybuf, *iend;
41 iend = keybuf = xmalloc(size);
42 i2d_X509(ctx->cert, &iend);
43 char *certdata_str = xmalloc(size * 2 + 1);
44 unsigned char *cp = keybuf;
45 char *certdata_str_i = certdata_str;
48 unsigned char ch = *cp++;
49 *certdata_str_i++ = hex[(ch >> 4) & 0xf];
50 *certdata_str_i++ = hex[ch & 0xf];
55 const char *policy = "2.5.29.32.0"; // anyPolicy
56 int validated = pathfinder_dbus_verify(certdata_str, policy, 0, 0, &errmsg);
59 opkg_msg(ERROR, "Path verification failed: %s.\n", errmsg);
68 #if defined(HAVE_OPENSSL)
69 int pkcs7_pathfinder_verify_signers(PKCS7* p7)
71 STACK_OF(X509) *signers;
72 int i, ret = 1; /* signers are verified by default */
74 signers = PKCS7_get0_signers(p7, NULL, 0);
76 for(i = 0; i < sk_X509_num(signers); i++){
77 X509_STORE_CTX ctx = {
78 .cert = sk_X509_value(signers, i),
81 if(!pathfinder_verify_callback(&ctx, NULL)){
82 /* Signer isn't verified ! goto jail; */
88 sk_X509_free(signers);
93 #if defined(HAVE_SSLCURL)
94 CURLcode curl_ssl_ctx_function(CURL * curl, void * sslctx, void * parm) {
96 SSL_CTX * ctx = (SSL_CTX *) sslctx;
97 SSL_CTX_set_cert_verify_callback(ctx, pathfinder_verify_callback, parm);