Workaround for some CMS signature formats.
[openssl.git] / apps / verify.c
index 4166b92..b754fe3 100644 (file)
 #include <openssl/bio.h>
 #include <openssl/err.h>
 #include <openssl/x509.h>
+#include <openssl/x509v3.h>
 #include <openssl/pem.h>
 
 #undef PROG
 #define PROG   verify_main
 
 static int MS_CALLBACK cb(int ok, X509_STORE_CTX *ctx);
-static int check(X509_STORE *ctx,char *file);
-static int v_verbose=0;
+static int check(X509_STORE *ctx, char *file,
+               STACK_OF(X509) *uchain, STACK_OF(X509) *tchain,
+               STACK_OF(X509_CRL) *crls, ENGINE *e, int show_chain);
+static int v_verbose=0, vflags = 0;
+
+int MAIN(int, char **);
 
 int MAIN(int argc, char **argv)
        {
-       int i,ret=1;
+       ENGINE *e = NULL;
+       int i,ret=1, badarg = 0;
        char *CApath=NULL,*CAfile=NULL;
+       char *untfile = NULL, *trustfile = NULL, *crlfile = NULL;
+       STACK_OF(X509) *untrusted = NULL, *trusted = NULL;
+       STACK_OF(X509_CRL) *crls = NULL;
        X509_STORE *cert_ctx=NULL;
        X509_LOOKUP *lookup=NULL;
+       X509_VERIFY_PARAM *vpm = NULL;
+       int crl_download = 0, show_chain = 0;
+#ifndef OPENSSL_NO_ENGINE
+       char *engine=NULL;
+#endif
 
        cert_ctx=X509_STORE_new();
        if (cert_ctx == NULL) goto end;
-       X509_STORE_set_verify_cb_func(cert_ctx,cb);
+       X509_STORE_set_verify_cb(cert_ctx,cb);
 
        ERR_load_crypto_strings();
 
@@ -91,6 +105,9 @@ int MAIN(int argc, char **argv)
                if ((bio_err=BIO_new(BIO_s_file())) != NULL)
                        BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
 
+       if (!load_config(bio_err, NULL))
+               goto end;
+
        argc--;
        argv++;
        for (;;)
@@ -107,6 +124,39 @@ int MAIN(int argc, char **argv)
                                if (argc-- < 1) goto end;
                                CAfile= *(++argv);
                                }
+                       else if (args_verify(&argv, &argc, &badarg, bio_err,
+                                                                       &vpm))
+                               {
+                               if (badarg)
+                                       goto end;
+                               continue;
+                               }
+                       else if (strcmp(*argv,"-untrusted") == 0)
+                               {
+                               if (argc-- < 1) goto end;
+                               untfile= *(++argv);
+                               }
+                       else if (strcmp(*argv,"-trusted") == 0)
+                               {
+                               if (argc-- < 1) goto end;
+                               trustfile= *(++argv);
+                               }
+                       else if (strcmp(*argv,"-CRLfile") == 0)
+                               {
+                               if (argc-- < 1) goto end;
+                               crlfile= *(++argv);
+                               }
+                       else if (strcmp(*argv,"-crl_download") == 0)
+                               crl_download = 1;
+                       else if (strcmp(*argv,"-show_chain") == 0)
+                               show_chain = 1;
+#ifndef OPENSSL_NO_ENGINE
+                       else if (strcmp(*argv,"-engine") == 0)
+                               {
+                               if (--argc < 1) goto end;
+                               engine= *(++argv);
+                               }
+#endif
                        else if (strcmp(*argv,"-help") == 0)
                                goto end;
                        else if (strcmp(*argv,"-verbose") == 0)
@@ -122,6 +172,13 @@ int MAIN(int argc, char **argv)
                        break;
                }
 
+#ifndef OPENSSL_NO_ENGINE
+        e = setup_engine(bio_err, engine, 0);
+#endif
+
+       if (vpm)
+               X509_STORE_set1_param(cert_ctx, vpm);
+
        lookup=X509_STORE_add_lookup(cert_ctx,X509_LOOKUP_file());
        if (lookup == NULL) abort();
        if (CAfile) {
@@ -144,95 +201,196 @@ int MAIN(int argc, char **argv)
                }
        } else X509_LOOKUP_add_dir(lookup,NULL,X509_FILETYPE_DEFAULT);
 
-
        ERR_clear_error();
-       if (argc < 1) check(cert_ctx,NULL);
+
+       if(untfile)
+               {
+               untrusted = load_certs(bio_err, untfile, FORMAT_PEM,
+                                       NULL, e, "untrusted certificates");
+               if(!untrusted)
+                       goto end;
+               }
+
+       if(trustfile)
+               {
+               trusted = load_certs(bio_err, trustfile, FORMAT_PEM,
+                                       NULL, e, "trusted certificates");
+               if(!trusted)
+                       goto end;
+               }
+
+       if(crlfile)
+               {
+               crls = load_crls(bio_err, crlfile, FORMAT_PEM,
+                                       NULL, e, "other CRLs");
+               if(!crls)
+                       goto end;
+               }
+
+       if (crl_download)
+               store_setup_crl_download(cert_ctx);
+
+       ret=0;
+       if (argc < 1)
+               { 
+               if (1 != check(cert_ctx, NULL, untrusted, trusted, crls, e, show_chain))
+                       ret=-1;
+               }
        else
+               {
                for (i=0; i<argc; i++)
-                       check(cert_ctx,argv[i]);
-       ret=0;
+                       if (1 != check(cert_ctx,argv[i], untrusted, trusted, crls, e, show_chain))
+                               ret=-1;
+               }
+
 end:
-       if (ret == 1)
-               BIO_printf(bio_err,"usage: verify [-verbose] [-CApath path] [-CAfile file] cert1 cert2 ...\n");
+       if (ret == 1) {
+               BIO_printf(bio_err,"usage: verify [-verbose] [-CApath path] [-CAfile file] [-purpose purpose] [-crl_check]");
+#ifndef OPENSSL_NO_ENGINE
+               BIO_printf(bio_err," [-engine e]");
+#endif
+               BIO_printf(bio_err," cert1 cert2 ...\n");
+
+               BIO_printf(bio_err,"recognized usages:\n");
+               for(i = 0; i < X509_PURPOSE_get_count(); i++)
+                       {
+                       X509_PURPOSE *ptmp;
+                       ptmp = X509_PURPOSE_get0(i);
+                       BIO_printf(bio_err, "\t%-10s\t%s\n",
+                                  X509_PURPOSE_get0_sname(ptmp),
+                                  X509_PURPOSE_get0_name(ptmp));
+                       }
+
+               BIO_printf(bio_err,"recognized verify names:\n");
+               for(i = 0; i < X509_VERIFY_PARAM_get_count(); i++)
+                       {
+                       const X509_VERIFY_PARAM *vptmp;
+                       vptmp = X509_VERIFY_PARAM_get0(i);
+                       BIO_printf(bio_err, "\t%-10s\n",
+                                       X509_VERIFY_PARAM_get0_name(vptmp));
+                       }
+
+       }
+       if (vpm) X509_VERIFY_PARAM_free(vpm);
        if (cert_ctx != NULL) X509_STORE_free(cert_ctx);
-       EXIT(ret);
+       sk_X509_pop_free(untrusted, X509_free);
+       sk_X509_pop_free(trusted, X509_free);
+       sk_X509_CRL_pop_free(crls, X509_CRL_free);
+       apps_shutdown();
+       OPENSSL_EXIT(ret < 0 ? 2 : ret);
        }
 
-static int check(X509_STORE *ctx, char *file)
+static int check(X509_STORE *ctx, char *file,
+               STACK_OF(X509) *uchain, STACK_OF(X509) *tchain,
+               STACK_OF(X509_CRL) *crls, ENGINE *e, int show_chain)
        {
        X509 *x=NULL;
-       BIO *in=NULL;
        int i=0,ret=0;
-       X509_STORE_CTX csc;
+       X509_STORE_CTX *csc;
+       STACK_OF(X509) *chain = NULL;
 
-       in=BIO_new(BIO_s_file());
-       if (in == NULL)
-               {
-               ERR_print_errors(bio_err);
+       x = load_cert(bio_err, file, FORMAT_PEM, NULL, e, "certificate file");
+       if (x == NULL)
                goto end;
-               }
+       fprintf(stdout,"%s: ",(file == NULL)?"stdin":file);
 
-       if (file == NULL)
-               BIO_set_fp(in,stdin,BIO_NOCLOSE);
-       else
+       csc = X509_STORE_CTX_new();
+       if (csc == NULL)
                {
-               if (BIO_read_filename(in,file) <= 0)
-                       {
-                       perror(file);
-                       goto end;
-                       }
+               ERR_print_errors(bio_err);
+               goto end;
                }
-
-       x=PEM_read_bio_X509(in,NULL,NULL,NULL);
-       if (x == NULL)
+       X509_STORE_set_flags(ctx, vflags);
+       if(!X509_STORE_CTX_init(csc,ctx,x,uchain))
                {
-               fprintf(stdout,"%s: unable to load certificate file\n",
-                       (file == NULL)?"stdin":file);
                ERR_print_errors(bio_err);
                goto end;
                }
-       fprintf(stdout,"%s: ",(file == NULL)?"stdin":file);
-
-       X509_STORE_CTX_init(&csc,ctx,x,NULL);
-       i=X509_verify_cert(&csc);
-       X509_STORE_CTX_cleanup(&csc);
+       if(tchain) X509_STORE_CTX_trusted_stack(csc, tchain);
+       if (crls)
+               X509_STORE_CTX_set0_crls(csc, crls);
+       i=X509_verify_cert(csc);
+       if (i > 0 && show_chain)
+               chain = X509_STORE_CTX_get1_chain(csc);
+       X509_STORE_CTX_free(csc);
 
        ret=0;
 end:
-       if (i)
+       if (i > 0)
                {
                fprintf(stdout,"OK\n");
                ret=1;
                }
        else
                ERR_print_errors(bio_err);
+       if (chain)
+               {
+               printf("Chain:\n");
+               for (i = 0; i < sk_X509_num(chain); i++)
+                       {
+                       X509 *cert = sk_X509_value(chain, i);
+                       printf("depth=%d: ", i);
+                       X509_NAME_print_ex_fp(stdout,
+                               X509_get_subject_name(cert),
+                               0, XN_FLAG_ONELINE);
+                       printf("\n");
+                       }
+               sk_X509_pop_free(chain, X509_free);
+               }
        if (x != NULL) X509_free(x);
-       if (in != NULL) BIO_free(in);
 
        return(ret);
        }
 
 static int MS_CALLBACK cb(int ok, X509_STORE_CTX *ctx)
        {
-       char buf[256];
+       int cert_error = X509_STORE_CTX_get_error(ctx);
+       X509 *current_cert = X509_STORE_CTX_get_current_cert(ctx);
 
        if (!ok)
                {
-               X509_NAME_oneline(
-                               X509_get_subject_name(ctx->current_cert),buf,256);
-               printf("%s\n",buf);
-               printf("error %d at %d depth lookup:%s\n",ctx->error,
-                       ctx->error_depth,
-                       X509_verify_cert_error_string(ctx->error));
-               if (ctx->error == X509_V_ERR_CERT_HAS_EXPIRED) ok=1;
-               /* since we are just checking the certificates, it is
-                * ok if they are self signed. But we should still warn
-                * the user.
-                */
-               if (ctx->error == X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT) ok=1;
+               if (current_cert)
+                       {
+                       X509_NAME_print_ex_fp(stdout,
+                               X509_get_subject_name(current_cert),
+                               0, XN_FLAG_ONELINE);
+                       printf("\n");
+                       }
+               printf("%serror %d at %d depth lookup:%s\n",
+                       X509_STORE_CTX_get0_parent_ctx(ctx) ? "[CRL path]" : "",
+                       cert_error,
+                       X509_STORE_CTX_get_error_depth(ctx),
+                       X509_verify_cert_error_string(cert_error));
+               switch(cert_error)
+                       {
+                       case X509_V_ERR_NO_EXPLICIT_POLICY:
+                               policies_print(NULL, ctx);
+                       case X509_V_ERR_CERT_HAS_EXPIRED:
+
+                       /* since we are just checking the certificates, it is
+                        * ok if they are self signed. But we should still warn
+                        * the user.
+                        */
+
+                       case X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT:
+                       /* Continue after extension errors too */
+                       case X509_V_ERR_INVALID_CA:
+                       case X509_V_ERR_INVALID_NON_CA:
+                       case X509_V_ERR_PATH_LENGTH_EXCEEDED:
+                       case X509_V_ERR_INVALID_PURPOSE:
+                       case X509_V_ERR_CRL_HAS_EXPIRED:
+                       case X509_V_ERR_CRL_NOT_YET_VALID:
+                       case X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION:
+                       ok = 1;
+
+                       }
+
+               return ok;
+
                }
+       if (cert_error == X509_V_OK && ok == 2)
+               policies_print(NULL, ctx);
        if (!v_verbose)
                ERR_clear_error();
        return(ok);
        }
-