aboutsummaryrefslogtreecommitdiffstats
path: root/crypto/x509/x509_vfy.c
diff options
context:
space:
mode:
Diffstat (limited to 'crypto/x509/x509_vfy.c')
-rw-r--r--crypto/x509/x509_vfy.c3723
1 files changed, 1821 insertions, 1902 deletions
diff --git a/crypto/x509/x509_vfy.c b/crypto/x509/x509_vfy.c
index 920066aeba3b..136bfbda617a 100644
--- a/crypto/x509/x509_vfy.c
+++ b/crypto/x509/x509_vfy.c
@@ -5,21 +5,21 @@
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
- *
+ *
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
- *
+ *
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
- *
+ *
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
@@ -34,10 +34,10 @@
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
- * 4. If you include any Windows specific code (or a derivative thereof) from
+ * 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
- *
+ *
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
@@ -49,7 +49,7 @@
* 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.
- *
+ *
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
@@ -74,19 +74,19 @@
/* No unhandled critical extensions */
-#define CRL_SCORE_NOCRITICAL 0x100
+#define CRL_SCORE_NOCRITICAL 0x100
/* certificate is within CRL scope */
-#define CRL_SCORE_SCOPE 0x080
+#define CRL_SCORE_SCOPE 0x080
/* CRL times valid */
-#define CRL_SCORE_TIME 0x040
+#define CRL_SCORE_TIME 0x040
/* Issuer name matches certificate */
-#define CRL_SCORE_ISSUER_NAME 0x020
+#define CRL_SCORE_ISSUER_NAME 0x020
/* If this score or above CRL is probably valid */
@@ -94,21 +94,21 @@
/* CRL issuer is certificate issuer */
-#define CRL_SCORE_ISSUER_CERT 0x018
+#define CRL_SCORE_ISSUER_CERT 0x018
/* CRL issuer is on certificate path */
-#define CRL_SCORE_SAME_PATH 0x008
+#define CRL_SCORE_SAME_PATH 0x008
/* CRL issuer matches CRL AKID */
-#define CRL_SCORE_AKID 0x004
+#define CRL_SCORE_AKID 0x004
/* Have a delta CRL with valid times */
-#define CRL_SCORE_TIME_DELTA 0x002
+#define CRL_SCORE_TIME_DELTA 0x002
-static int null_callback(int ok,X509_STORE_CTX *e);
+static int null_callback(int ok, X509_STORE_CTX *e);
static int check_issued(X509_STORE_CTX *ctx, X509 *x, X509 *issuer);
static X509 *find_issuer(X509_STORE_CTX *ctx, STACK_OF(X509) *sk, X509 *x);
static int check_chain_extensions(X509_STORE_CTX *ctx);
@@ -119,2106 +119,2025 @@ static int check_cert(X509_STORE_CTX *ctx);
static int check_policy(X509_STORE_CTX *ctx);
static int get_crl_score(X509_STORE_CTX *ctx, X509 **pissuer,
- unsigned int *preasons,
- X509_CRL *crl, X509 *x);
+ unsigned int *preasons, X509_CRL *crl, X509 *x);
static int get_crl_delta(X509_STORE_CTX *ctx,
- X509_CRL **pcrl, X509_CRL **pdcrl, X509 *x);
-static void get_delta_sk(X509_STORE_CTX *ctx, X509_CRL **dcrl, int *pcrl_score,
- X509_CRL *base, STACK_OF(X509_CRL) *crls);
-static void crl_akid_check(X509_STORE_CTX *ctx, X509_CRL *crl,
- X509 **pissuer, int *pcrl_score);
+ X509_CRL **pcrl, X509_CRL **pdcrl, X509 *x);
+static void get_delta_sk(X509_STORE_CTX *ctx, X509_CRL **dcrl,
+ int *pcrl_score, X509_CRL *base,
+ STACK_OF(X509_CRL) *crls);
+static void crl_akid_check(X509_STORE_CTX *ctx, X509_CRL *crl, X509 **pissuer,
+ int *pcrl_score);
static int crl_crldp_check(X509 *x, X509_CRL *crl, int crl_score,
- unsigned int *preasons);
+ unsigned int *preasons);
static int check_crl_path(X509_STORE_CTX *ctx, X509 *x);
static int check_crl_chain(X509_STORE_CTX *ctx,
- STACK_OF(X509) *cert_path,
- STACK_OF(X509) *crl_path);
+ STACK_OF(X509) *cert_path,
+ STACK_OF(X509) *crl_path);
static int internal_verify(X509_STORE_CTX *ctx);
-const char X509_version[]="X.509" OPENSSL_VERSION_PTEXT;
-
+const char X509_version[] = "X.509" OPENSSL_VERSION_PTEXT;
static int null_callback(int ok, X509_STORE_CTX *e)
- {
- return ok;
- }
+{
+ return ok;
+}
#if 0
static int x509_subject_cmp(X509 **a, X509 **b)
- {
- return X509_subject_name_cmp(*a,*b);
- }
+{
+ return X509_subject_name_cmp(*a, *b);
+}
#endif
int X509_verify_cert(X509_STORE_CTX *ctx)
- {
- X509 *x,*xtmp,*chain_ss=NULL;
- int bad_chain = 0;
- X509_VERIFY_PARAM *param = ctx->param;
- int depth,i,ok=0;
- int num;
- int (*cb)(int xok,X509_STORE_CTX *xctx);
- STACK_OF(X509) *sktmp=NULL;
- if (ctx->cert == NULL)
- {
- X509err(X509_F_X509_VERIFY_CERT,X509_R_NO_CERT_SET_FOR_US_TO_VERIFY);
- return -1;
- }
-
- cb=ctx->verify_cb;
-
- /* first we make sure the chain we are going to build is
- * present and that the first entry is in place */
- if (ctx->chain == NULL)
- {
- if ( ((ctx->chain=sk_X509_new_null()) == NULL) ||
- (!sk_X509_push(ctx->chain,ctx->cert)))
- {
- X509err(X509_F_X509_VERIFY_CERT,ERR_R_MALLOC_FAILURE);
- goto end;
- }
- CRYPTO_add(&ctx->cert->references,1,CRYPTO_LOCK_X509);
- ctx->last_untrusted=1;
- }
-
- /* We use a temporary STACK so we can chop and hack at it */
- if (ctx->untrusted != NULL
- && (sktmp=sk_X509_dup(ctx->untrusted)) == NULL)
- {
- X509err(X509_F_X509_VERIFY_CERT,ERR_R_MALLOC_FAILURE);
- goto end;
- }
-
- num=sk_X509_num(ctx->chain);
- x=sk_X509_value(ctx->chain,num-1);
- depth=param->depth;
-
-
- for (;;)
- {
- /* If we have enough, we break */
- if (depth < num) break; /* FIXME: If this happens, we should take
- * note of it and, if appropriate, use the
- * X509_V_ERR_CERT_CHAIN_TOO_LONG error
- * code later.
- */
-
- /* If we are self signed, we break */
- if (ctx->check_issued(ctx, x,x)) break;
-
- /* If we were passed a cert chain, use it first */
- if (ctx->untrusted != NULL)
- {
- xtmp=find_issuer(ctx, sktmp,x);
- if (xtmp != NULL)
- {
- if (!sk_X509_push(ctx->chain,xtmp))
- {
- X509err(X509_F_X509_VERIFY_CERT,ERR_R_MALLOC_FAILURE);
- goto end;
- }
- CRYPTO_add(&xtmp->references,1,CRYPTO_LOCK_X509);
- (void)sk_X509_delete_ptr(sktmp,xtmp);
- ctx->last_untrusted++;
- x=xtmp;
- num++;
- /* reparse the full chain for
- * the next one */
- continue;
- }
- }
- break;
- }
-
- /* at this point, chain should contain a list of untrusted
- * certificates. We now need to add at least one trusted one,
- * if possible, otherwise we complain. */
-
- /* Examine last certificate in chain and see if it
- * is self signed.
- */
-
- i=sk_X509_num(ctx->chain);
- x=sk_X509_value(ctx->chain,i-1);
- if (ctx->check_issued(ctx, x, x))
- {
- /* we have a self signed certificate */
- if (sk_X509_num(ctx->chain) == 1)
- {
- /* We have a single self signed certificate: see if
- * we can find it in the store. We must have an exact
- * match to avoid possible impersonation.
- */
- ok = ctx->get_issuer(&xtmp, ctx, x);
- if ((ok <= 0) || X509_cmp(x, xtmp))
- {
- ctx->error=X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT;
- ctx->current_cert=x;
- ctx->error_depth=i-1;
- if (ok == 1) X509_free(xtmp);
- bad_chain = 1;
- ok=cb(0,ctx);
- if (!ok) goto end;
- }
- else
- {
- /* We have a match: replace certificate with store version
- * so we get any trust settings.
- */
- X509_free(x);
- x = xtmp;
- (void)sk_X509_set(ctx->chain, i - 1, x);
- ctx->last_untrusted=0;
- }
- }
- else
- {
- /* extract and save self signed certificate for later use */
- chain_ss=sk_X509_pop(ctx->chain);
- ctx->last_untrusted--;
- num--;
- x=sk_X509_value(ctx->chain,num-1);
- }
- }
-
- /* We now lookup certs from the certificate store */
- for (;;)
- {
- /* If we have enough, we break */
- if (depth < num) break;
-
- /* If we are self signed, we break */
- if (ctx->check_issued(ctx,x,x)) break;
-
- ok = ctx->get_issuer(&xtmp, ctx, x);
-
- if (ok < 0) return ok;
- if (ok == 0) break;
-
- x = xtmp;
- if (!sk_X509_push(ctx->chain,x))
- {
- X509_free(xtmp);
- X509err(X509_F_X509_VERIFY_CERT,ERR_R_MALLOC_FAILURE);
- return 0;
- }
- num++;
- }
-
- /* we now have our chain, lets check it... */
-
- /* Is last certificate looked up self signed? */
- if (!ctx->check_issued(ctx,x,x))
- {
- if ((chain_ss == NULL) || !ctx->check_issued(ctx, x, chain_ss))
- {
- if (ctx->last_untrusted >= num)
- ctx->error=X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY;
- else
- ctx->error=X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT;
- ctx->current_cert=x;
- }
- else
- {
-
- sk_X509_push(ctx->chain,chain_ss);
- num++;
- ctx->last_untrusted=num;
- ctx->current_cert=chain_ss;
- ctx->error=X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN;
- chain_ss=NULL;
- }
-
- ctx->error_depth=num-1;
- bad_chain = 1;
- ok=cb(0,ctx);
- if (!ok) goto end;
- }
-
- /* We have the chain complete: now we need to check its purpose */
- ok = check_chain_extensions(ctx);
-
- if (!ok) goto end;
-
- /* Check name constraints */
-
- ok = check_name_constraints(ctx);
-
- if (!ok) goto end;
-
- /* The chain extensions are OK: check trust */
-
- if (param->trust > 0) ok = check_trust(ctx);
-
- if (!ok) goto end;
-
- /* We may as well copy down any DSA parameters that are required */
- X509_get_pubkey_parameters(NULL,ctx->chain);
-
- /* Check revocation status: we do this after copying parameters
- * because they may be needed for CRL signature verification.
- */
-
- ok = ctx->check_revocation(ctx);
- if(!ok) goto end;
-
- /* At this point, we have a chain and need to verify it */
- if (ctx->verify != NULL)
- ok=ctx->verify(ctx);
- else
- ok=internal_verify(ctx);
- if(!ok) goto end;
+{
+ X509 *x, *xtmp, *chain_ss = NULL;
+ int bad_chain = 0;
+ X509_VERIFY_PARAM *param = ctx->param;
+ int depth, i, ok = 0;
+ int num;
+ int (*cb) (int xok, X509_STORE_CTX *xctx);
+ STACK_OF(X509) *sktmp = NULL;
+ if (ctx->cert == NULL) {
+ X509err(X509_F_X509_VERIFY_CERT, X509_R_NO_CERT_SET_FOR_US_TO_VERIFY);
+ return -1;
+ }
+
+ cb = ctx->verify_cb;
+
+ /*
+ * first we make sure the chain we are going to build is present and that
+ * the first entry is in place
+ */
+ if (ctx->chain == NULL) {
+ if (((ctx->chain = sk_X509_new_null()) == NULL) ||
+ (!sk_X509_push(ctx->chain, ctx->cert))) {
+ X509err(X509_F_X509_VERIFY_CERT, ERR_R_MALLOC_FAILURE);
+ goto end;
+ }
+ CRYPTO_add(&ctx->cert->references, 1, CRYPTO_LOCK_X509);
+ ctx->last_untrusted = 1;
+ }
+
+ /* We use a temporary STACK so we can chop and hack at it */
+ if (ctx->untrusted != NULL
+ && (sktmp = sk_X509_dup(ctx->untrusted)) == NULL) {
+ X509err(X509_F_X509_VERIFY_CERT, ERR_R_MALLOC_FAILURE);
+ goto end;
+ }
+
+ num = sk_X509_num(ctx->chain);
+ x = sk_X509_value(ctx->chain, num - 1);
+ depth = param->depth;
+
+ for (;;) {
+ /* If we have enough, we break */
+ if (depth < num)
+ break; /* FIXME: If this happens, we should take
+ * note of it and, if appropriate, use the
+ * X509_V_ERR_CERT_CHAIN_TOO_LONG error code
+ * later. */
+
+ /* If we are self signed, we break */
+ if (ctx->check_issued(ctx, x, x))
+ break;
+
+ /* If we were passed a cert chain, use it first */
+ if (ctx->untrusted != NULL) {
+ xtmp = find_issuer(ctx, sktmp, x);
+ if (xtmp != NULL) {
+ if (!sk_X509_push(ctx->chain, xtmp)) {
+ X509err(X509_F_X509_VERIFY_CERT, ERR_R_MALLOC_FAILURE);
+ goto end;
+ }
+ CRYPTO_add(&xtmp->references, 1, CRYPTO_LOCK_X509);
+ (void)sk_X509_delete_ptr(sktmp, xtmp);
+ ctx->last_untrusted++;
+ x = xtmp;
+ num++;
+ /*
+ * reparse the full chain for the next one
+ */
+ continue;
+ }
+ }
+ break;
+ }
+
+ /*
+ * at this point, chain should contain a list of untrusted certificates.
+ * We now need to add at least one trusted one, if possible, otherwise we
+ * complain.
+ */
+
+ /*
+ * Examine last certificate in chain and see if it is self signed.
+ */
+
+ i = sk_X509_num(ctx->chain);
+ x = sk_X509_value(ctx->chain, i - 1);
+ if (ctx->check_issued(ctx, x, x)) {
+ /* we have a self signed certificate */
+ if (sk_X509_num(ctx->chain) == 1) {
+ /*
+ * We have a single self signed certificate: see if we can find
+ * it in the store. We must have an exact match to avoid possible
+ * impersonation.
+ */
+ ok = ctx->get_issuer(&xtmp, ctx, x);
+ if ((ok <= 0) || X509_cmp(x, xtmp)) {
+ ctx->error = X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT;
+ ctx->current_cert = x;
+ ctx->error_depth = i - 1;
+ if (ok == 1)
+ X509_free(xtmp);
+ bad_chain = 1;
+ ok = cb(0, ctx);
+ if (!ok)
+ goto end;
+ } else {
+ /*
+ * We have a match: replace certificate with store version so
+ * we get any trust settings.
+ */
+ X509_free(x);
+ x = xtmp;
+ (void)sk_X509_set(ctx->chain, i - 1, x);
+ ctx->last_untrusted = 0;
+ }
+ } else {
+ /*
+ * extract and save self signed certificate for later use
+ */
+ chain_ss = sk_X509_pop(ctx->chain);
+ ctx->last_untrusted--;
+ num--;
+ x = sk_X509_value(ctx->chain, num - 1);
+ }
+ }
+
+ /* We now lookup certs from the certificate store */
+ for (;;) {
+ /* If we have enough, we break */
+ if (depth < num)
+ break;
+
+ /* If we are self signed, we break */
+ if (ctx->check_issued(ctx, x, x))
+ break;
+
+ ok = ctx->get_issuer(&xtmp, ctx, x);
+
+ if (ok < 0)
+ return ok;
+ if (ok == 0)
+ break;
+
+ x = xtmp;
+ if (!sk_X509_push(ctx->chain, x)) {
+ X509_free(xtmp);
+ X509err(X509_F_X509_VERIFY_CERT, ERR_R_MALLOC_FAILURE);
+ return 0;
+ }
+ num++;
+ }
+
+ /* we now have our chain, lets check it... */
+
+ /* Is last certificate looked up self signed? */
+ if (!ctx->check_issued(ctx, x, x)) {
+ if ((chain_ss == NULL) || !ctx->check_issued(ctx, x, chain_ss)) {
+ if (ctx->last_untrusted >= num)
+ ctx->error = X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY;
+ else
+ ctx->error = X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT;
+ ctx->current_cert = x;
+ } else {
+
+ sk_X509_push(ctx->chain, chain_ss);
+ num++;
+ ctx->last_untrusted = num;
+ ctx->current_cert = chain_ss;
+ ctx->error = X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN;
+ chain_ss = NULL;
+ }
+
+ ctx->error_depth = num - 1;
+ bad_chain = 1;
+ ok = cb(0, ctx);
+ if (!ok)
+ goto end;
+ }
+
+ /* We have the chain complete: now we need to check its purpose */
+ ok = check_chain_extensions(ctx);
+
+ if (!ok)
+ goto end;
+
+ /* Check name constraints */
+
+ ok = check_name_constraints(ctx);
+
+ if (!ok)
+ goto end;
+
+ /* The chain extensions are OK: check trust */
+
+ if (param->trust > 0)
+ ok = check_trust(ctx);
+
+ if (!ok)
+ goto end;
+
+ /* We may as well copy down any DSA parameters that are required */
+ X509_get_pubkey_parameters(NULL, ctx->chain);
+
+ /*
+ * Check revocation status: we do this after copying parameters because
+ * they may be needed for CRL signature verification.
+ */
+
+ ok = ctx->check_revocation(ctx);
+ if (!ok)
+ goto end;
+
+ /* At this point, we have a chain and need to verify it */
+ if (ctx->verify != NULL)
+ ok = ctx->verify(ctx);
+ else
+ ok = internal_verify(ctx);
+ if (!ok)
+ goto end;
#ifndef OPENSSL_NO_RFC3779
- /* RFC 3779 path validation, now that CRL check has been done */
- ok = v3_asid_validate_path(ctx);
- if (!ok) goto end;
- ok = v3_addr_validate_path(ctx);
- if (!ok) goto end;
+ /* RFC 3779 path validation, now that CRL check has been done */
+ ok = v3_asid_validate_path(ctx);
+ if (!ok)
+ goto end;
+ ok = v3_addr_validate_path(ctx);
+ if (!ok)
+ goto end;
#endif
- /* If we get this far evaluate policies */
- if (!bad_chain && (ctx->param->flags & X509_V_FLAG_POLICY_CHECK))
- ok = ctx->check_policy(ctx);
- if(!ok) goto end;
- if (0)
- {
-end:
- X509_get_pubkey_parameters(NULL,ctx->chain);
- }
- if (sktmp != NULL) sk_X509_free(sktmp);
- if (chain_ss != NULL) X509_free(chain_ss);
- return ok;
- }
-
-
-/* Given a STACK_OF(X509) find the issuer of cert (if any)
+ /* If we get this far evaluate policies */
+ if (!bad_chain && (ctx->param->flags & X509_V_FLAG_POLICY_CHECK))
+ ok = ctx->check_policy(ctx);
+ if (!ok)
+ goto end;
+ if (0) {
+ end:
+ X509_get_pubkey_parameters(NULL, ctx->chain);
+ }
+ if (sktmp != NULL)
+ sk_X509_free(sktmp);
+ if (chain_ss != NULL)
+ X509_free(chain_ss);
+ return ok;
+}
+
+/*
+ * Given a STACK_OF(X509) find the issuer of cert (if any)
*/
static X509 *find_issuer(X509_STORE_CTX *ctx, STACK_OF(X509) *sk, X509 *x)
{
- int i;
- X509 *issuer;
- for (i = 0; i < sk_X509_num(sk); i++)
- {
- issuer = sk_X509_value(sk, i);
- if (ctx->check_issued(ctx, x, issuer))
- return issuer;
- }
- return NULL;
+ int i;
+ X509 *issuer;
+ for (i = 0; i < sk_X509_num(sk); i++) {
+ issuer = sk_X509_value(sk, i);
+ if (ctx->check_issued(ctx, x, issuer))
+ return issuer;
+ }
+ return NULL;
}
/* Given a possible certificate and issuer check them */
static int check_issued(X509_STORE_CTX *ctx, X509 *x, X509 *issuer)
{
- int ret;
- ret = X509_check_issued(issuer, x);
- if (ret == X509_V_OK)
- return 1;
- /* If we haven't asked for issuer errors don't set ctx */
- if (!(ctx->param->flags & X509_V_FLAG_CB_ISSUER_CHECK))
- return 0;
-
- ctx->error = ret;
- ctx->current_cert = x;
- ctx->current_issuer = issuer;
- return ctx->verify_cb(0, ctx);
- return 0;
+ int ret;
+ ret = X509_check_issued(issuer, x);
+ if (ret == X509_V_OK)
+ return 1;
+ /* If we haven't asked for issuer errors don't set ctx */
+ if (!(ctx->param->flags & X509_V_FLAG_CB_ISSUER_CHECK))
+ return 0;
+
+ ctx->error = ret;
+ ctx->current_cert = x;
+ ctx->current_issuer = issuer;
+ return ctx->verify_cb(0, ctx);
+ return 0;
}
/* Alternative lookup method: look from a STACK stored in other_ctx */
static int get_issuer_sk(X509 **issuer, X509_STORE_CTX *ctx, X509 *x)
{
- *issuer = find_issuer(ctx, ctx->other_ctx, x);
- if (*issuer)
- {
- CRYPTO_add(&(*issuer)->references,1,CRYPTO_LOCK_X509);
- return 1;
- }
- else
- return 0;
+ *issuer = find_issuer(ctx, ctx->other_ctx, x);
+ if (*issuer) {
+ CRYPTO_add(&(*issuer)->references, 1, CRYPTO_LOCK_X509);
+ return 1;
+ } else
+ return 0;
}
-
-/* Check a certificate chains extensions for consistency
- * with the supplied purpose
+/*
+ * Check a certificate chains extensions for consistency with the supplied
+ * purpose
*/
static int check_chain_extensions(X509_STORE_CTX *ctx)
{
#ifdef OPENSSL_NO_CHAIN_VERIFY
- return 1;
+ return 1;
#else
- int i, ok=0, must_be_ca, plen = 0;
- X509 *x;
- int (*cb)(int xok,X509_STORE_CTX *xctx);
- int proxy_path_length = 0;
- int purpose;
- int allow_proxy_certs;
- cb=ctx->verify_cb;
-
- /* must_be_ca can have 1 of 3 values:
- -1: we accept both CA and non-CA certificates, to allow direct
- use of self-signed certificates (which are marked as CA).
- 0: we only accept non-CA certificates. This is currently not
- used, but the possibility is present for future extensions.
- 1: we only accept CA certificates. This is currently used for
- all certificates in the chain except the leaf certificate.
- */
- must_be_ca = -1;
-
- /* CRL path validation */
- if (ctx->parent)
- {
- allow_proxy_certs = 0;
- purpose = X509_PURPOSE_CRL_SIGN;
- }
- else
- {
- allow_proxy_certs =
- !!(ctx->param->flags & X509_V_FLAG_ALLOW_PROXY_CERTS);
- /* A hack to keep people who don't want to modify their
- software happy */
- if (getenv("OPENSSL_ALLOW_PROXY_CERTS"))
- allow_proxy_certs = 1;
- purpose = ctx->param->purpose;
- }
-
- /* Check all untrusted certificates */
- for (i = 0; i < ctx->last_untrusted; i++)
- {
- int ret;
- x = sk_X509_value(ctx->chain, i);
- if (!(ctx->param->flags & X509_V_FLAG_IGNORE_CRITICAL)
- && (x->ex_flags & EXFLAG_CRITICAL))
- {
- ctx->error = X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION;
- ctx->error_depth = i;
- ctx->current_cert = x;
- ok=cb(0,ctx);
- if (!ok) goto end;
- }
- if (!allow_proxy_certs && (x->ex_flags & EXFLAG_PROXY))
- {
- ctx->error = X509_V_ERR_PROXY_CERTIFICATES_NOT_ALLOWED;
- ctx->error_depth = i;
- ctx->current_cert = x;
- ok=cb(0,ctx);
- if (!ok) goto end;
- }
- ret = X509_check_ca(x);
- switch(must_be_ca)
- {
- case -1:
- if ((ctx->param->flags & X509_V_FLAG_X509_STRICT)
- && (ret != 1) && (ret != 0))
- {
- ret = 0;
- ctx->error = X509_V_ERR_INVALID_CA;
- }
- else
- ret = 1;
- break;
- case 0:
- if (ret != 0)
- {
- ret = 0;
- ctx->error = X509_V_ERR_INVALID_NON_CA;
- }
- else
- ret = 1;
- break;
- default:
- if ((ret == 0)
- || ((ctx->param->flags & X509_V_FLAG_X509_STRICT)
- && (ret != 1)))
- {
- ret = 0;
- ctx->error = X509_V_ERR_INVALID_CA;
- }
- else
- ret = 1;
- break;
- }
- if (ret == 0)
- {
- ctx->error_depth = i;
- ctx->current_cert = x;
- ok=cb(0,ctx);
- if (!ok) goto end;
- }
- if (ctx->param->purpose > 0)
- {
- ret = X509_check_purpose(x, purpose, must_be_ca > 0);
- if ((ret == 0)
- || ((ctx->param->flags & X509_V_FLAG_X509_STRICT)
- && (ret != 1)))
- {
- ctx->error = X509_V_ERR_INVALID_PURPOSE;
- ctx->error_depth = i;
- ctx->current_cert = x;
- ok=cb(0,ctx);
- if (!ok) goto end;
- }
- }
- /* Check pathlen if not self issued */
- if ((i > 1) && !(x->ex_flags & EXFLAG_SI)
- && (x->ex_pathlen != -1)
- && (plen > (x->ex_pathlen + proxy_path_length + 1)))
- {
- ctx->error = X509_V_ERR_PATH_LENGTH_EXCEEDED;
- ctx->error_depth = i;
- ctx->current_cert = x;
- ok=cb(0,ctx);
- if (!ok) goto end;
- }
- /* Increment path length if not self issued */
- if (!(x->ex_flags & EXFLAG_SI))
- plen++;
- /* If this certificate is a proxy certificate, the next
- certificate must be another proxy certificate or a EE
- certificate. If not, the next certificate must be a
- CA certificate. */
- if (x->ex_flags & EXFLAG_PROXY)
- {
- if (x->ex_pcpathlen != -1 && i > x->ex_pcpathlen)
- {
- ctx->error =
- X509_V_ERR_PROXY_PATH_LENGTH_EXCEEDED;
- ctx->error_depth = i;
- ctx->current_cert = x;
- ok=cb(0,ctx);
- if (!ok) goto end;
- }
- proxy_path_length++;
- must_be_ca = 0;
- }
- else
- must_be_ca = 1;
- }
- ok = 1;
+ int i, ok = 0, must_be_ca, plen = 0;
+ X509 *x;
+ int (*cb) (int xok, X509_STORE_CTX *xctx);
+ int proxy_path_length = 0;
+ int purpose;
+ int allow_proxy_certs;
+ cb = ctx->verify_cb;
+
+ /*-
+ * must_be_ca can have 1 of 3 values:
+ * -1: we accept both CA and non-CA certificates, to allow direct
+ * use of self-signed certificates (which are marked as CA).
+ * 0: we only accept non-CA certificates. This is currently not
+ * used, but the possibility is present for future extensions.
+ * 1: we only accept CA certificates. This is currently used for
+ * all certificates in the chain except the leaf certificate.
+ */
+ must_be_ca = -1;
+
+ /* CRL path validation */
+ if (ctx->parent) {
+ allow_proxy_certs = 0;
+ purpose = X509_PURPOSE_CRL_SIGN;
+ } else {
+ allow_proxy_certs =
+ ! !(ctx->param->flags & X509_V_FLAG_ALLOW_PROXY_CERTS);
+ /*
+ * A hack to keep people who don't want to modify their software
+ * happy
+ */
+ if (getenv("OPENSSL_ALLOW_PROXY_CERTS"))
+ allow_proxy_certs = 1;
+ purpose = ctx->param->purpose;
+ }
+
+ /* Check all untrusted certificates */
+ for (i = 0; i < ctx->last_untrusted; i++) {
+ int ret;
+ x = sk_X509_value(ctx->chain, i);
+ if (!(ctx->param->flags & X509_V_FLAG_IGNORE_CRITICAL)
+ && (x->ex_flags & EXFLAG_CRITICAL)) {
+ ctx->error = X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION;
+ ctx->error_depth = i;
+ ctx->current_cert = x;
+ ok = cb(0, ctx);
+ if (!ok)
+ goto end;
+ }
+ if (!allow_proxy_certs && (x->ex_flags & EXFLAG_PROXY)) {
+ ctx->error = X509_V_ERR_PROXY_CERTIFICATES_NOT_ALLOWED;
+ ctx->error_depth = i;
+ ctx->current_cert = x;
+ ok = cb(0, ctx);
+ if (!ok)
+ goto end;
+ }
+ ret = X509_check_ca(x);
+ switch (must_be_ca) {
+ case -1:
+ if ((ctx->param->flags & X509_V_FLAG_X509_STRICT)
+ && (ret != 1) && (ret != 0)) {
+ ret = 0;
+ ctx->error = X509_V_ERR_INVALID_CA;
+ } else
+ ret = 1;
+ break;
+ case 0:
+ if (ret != 0) {
+ ret = 0;
+ ctx->error = X509_V_ERR_INVALID_NON_CA;
+ } else
+ ret = 1;
+ break;
+ default:
+ if ((ret == 0)
+ || ((ctx->param->flags & X509_V_FLAG_X509_STRICT)
+ && (ret != 1))) {
+ ret = 0;
+ ctx->error = X509_V_ERR_INVALID_CA;
+ } else
+ ret = 1;
+ break;
+ }
+ if (ret == 0) {
+ ctx->error_depth = i;
+ ctx->current_cert = x;
+ ok = cb(0, ctx);
+ if (!ok)
+ goto end;
+ }
+ if (ctx->param->purpose > 0) {
+ ret = X509_check_purpose(x, purpose, must_be_ca > 0);
+ if ((ret == 0)
+ || ((ctx->param->flags & X509_V_FLAG_X509_STRICT)
+ && (ret != 1))) {
+ ctx->error = X509_V_ERR_INVALID_PURPOSE;
+ ctx->error_depth = i;
+ ctx->current_cert = x;
+ ok = cb(0, ctx);
+ if (!ok)
+ goto end;
+ }
+ }
+ /* Check pathlen if not self issued */
+ if ((i > 1) && !(x->ex_flags & EXFLAG_SI)
+ && (x->ex_pathlen != -1)
+ && (plen > (x->ex_pathlen + proxy_path_length + 1))) {
+ ctx->error = X509_V_ERR_PATH_LENGTH_EXCEEDED;
+ ctx->error_depth = i;
+ ctx->current_cert = x;
+ ok = cb(0, ctx);
+ if (!ok)
+ goto end;
+ }
+ /* Increment path length if not self issued */
+ if (!(x->ex_flags & EXFLAG_SI))
+ plen++;
+ /*
+ * If this certificate is a proxy certificate, the next certificate
+ * must be another proxy certificate or a EE certificate. If not,
+ * the next certificate must be a CA certificate.
+ */
+ if (x->ex_flags & EXFLAG_PROXY) {
+ if (x->ex_pcpathlen != -1 && i > x->ex_pcpathlen) {
+ ctx->error = X509_V_ERR_PROXY_PATH_LENGTH_EXCEEDED;
+ ctx->error_depth = i;
+ ctx->current_cert = x;
+ ok = cb(0, ctx);
+ if (!ok)
+ goto end;
+ }
+ proxy_path_length++;
+ must_be_ca = 0;
+ } else
+ must_be_ca = 1;
+ }
+ ok = 1;
end:
- return ok;
+ return ok;
#endif
}
static int check_name_constraints(X509_STORE_CTX *ctx)
- {
- X509 *x;
- int i, j, rv;
- /* Check name constraints for all certificates */
- for (i = sk_X509_num(ctx->chain) - 1; i >= 0; i--)
- {
- x = sk_X509_value(ctx->chain, i);
- /* Ignore self issued certs unless last in chain */
- if (i && (x->ex_flags & EXFLAG_SI))
- continue;
- /* Check against constraints for all certificates higher in
- * chain including trust anchor. Trust anchor not strictly
- * speaking needed but if it includes constraints it is to be
- * assumed it expects them to be obeyed.
- */
- for (j = sk_X509_num(ctx->chain) - 1; j > i; j--)
- {
- NAME_CONSTRAINTS *nc = sk_X509_value(ctx->chain, j)->nc;
- if (nc)
- {
- rv = NAME_CONSTRAINTS_check(x, nc);
- if (rv != X509_V_OK)
- {
- ctx->error = rv;
- ctx->error_depth = i;
- ctx->current_cert = x;
- if (!ctx->verify_cb(0,ctx))
- return 0;
- }
- }
- }
- }
- return 1;
- }
+{
+ X509 *x;
+ int i, j, rv;
+ /* Check name constraints for all certificates */
+ for (i = sk_X509_num(ctx->chain) - 1; i >= 0; i--) {
+ x = sk_X509_value(ctx->chain, i);
+ /* Ignore self issued certs unless last in chain */
+ if (i && (x->ex_flags & EXFLAG_SI))
+ continue;
+ /*
+ * Check against constraints for all certificates higher in chain
+ * including trust anchor. Trust anchor not strictly speaking needed
+ * but if it includes constraints it is to be assumed it expects them
+ * to be obeyed.
+ */
+ for (j = sk_X509_num(ctx->chain) - 1; j > i; j--) {
+ NAME_CONSTRAINTS *nc = sk_X509_value(ctx->chain, j)->nc;
+ if (nc) {
+ rv = NAME_CONSTRAINTS_check(x, nc);
+ if (rv != X509_V_OK) {
+ ctx->error = rv;
+ ctx->error_depth = i;
+ ctx->current_cert = x;
+ if (!ctx->verify_cb(0, ctx))
+ return 0;
+ }
+ }
+ }
+ }
+ return 1;
+}
static int check_trust(X509_STORE_CTX *ctx)
{
#ifdef OPENSSL_NO_CHAIN_VERIFY
- return 1;
+ return 1;
#else
- int i, ok;
- X509 *x;
- int (*cb)(int xok,X509_STORE_CTX *xctx);
- cb=ctx->verify_cb;
+ int i, ok;
+ X509 *x;
+ int (*cb) (int xok, X509_STORE_CTX *xctx);
+ cb = ctx->verify_cb;
/* For now just check the last certificate in the chain */
- i = sk_X509_num(ctx->chain) - 1;
- x = sk_X509_value(ctx->chain, i);
- ok = X509_check_trust(x, ctx->param->trust, 0);
- if (ok == X509_TRUST_TRUSTED)
- return 1;
- ctx->error_depth = i;
- ctx->current_cert = x;
- if (ok == X509_TRUST_REJECTED)
- ctx->error = X509_V_ERR_CERT_REJECTED;
- else
- ctx->error = X509_V_ERR_CERT_UNTRUSTED;
- ok = cb(0, ctx);
- return ok;
+ i = sk_X509_num(ctx->chain) - 1;
+ x = sk_X509_value(ctx->chain, i);
+ ok = X509_check_trust(x, ctx->param->trust, 0);
+ if (ok == X509_TRUST_TRUSTED)
+ return 1;
+ ctx->error_depth = i;
+ ctx->current_cert = x;
+ if (ok == X509_TRUST_REJECTED)
+ ctx->error = X509_V_ERR_CERT_REJECTED;
+ else
+ ctx->error = X509_V_ERR_CERT_UNTRUSTED;
+ ok = cb(0, ctx);
+ return ok;
#endif
}
static int check_revocation(X509_STORE_CTX *ctx)
- {
- int i, last, ok;
- if (!(ctx->param->flags & X509_V_FLAG_CRL_CHECK))
- return 1;
- if (ctx->param->flags & X509_V_FLAG_CRL_CHECK_ALL)
- last = sk_X509_num(ctx->chain) - 1;
- else
- {
- /* If checking CRL paths this isn't the EE certificate */
- if (ctx->parent)
- return 1;
- last = 0;
- }
- for(i = 0; i <= last; i++)
- {
- ctx->error_depth = i;
- ok = check_cert(ctx);
- if (!ok) return ok;
- }
- return 1;
- }
+{
+ int i, last, ok;
+ if (!(ctx->param->flags & X509_V_FLAG_CRL_CHECK))
+ return 1;
+ if (ctx->param->flags & X509_V_FLAG_CRL_CHECK_ALL)
+ last = sk_X509_num(ctx->chain) - 1;
+ else {
+ /* If checking CRL paths this isn't the EE certificate */
+ if (ctx->parent)
+ return 1;
+ last = 0;
+ }
+ for (i = 0; i <= last; i++) {
+ ctx->error_depth = i;
+ ok = check_cert(ctx);
+ if (!ok)
+ return ok;
+ }
+ return 1;
+}
static int check_cert(X509_STORE_CTX *ctx)
- {
- X509_CRL *crl = NULL, *dcrl = NULL;
- X509 *x;
- int ok, cnum;
- unsigned int last_reasons;
- cnum = ctx->error_depth;
- x = sk_X509_value(ctx->chain, cnum);
- ctx->current_cert = x;
- ctx->current_issuer = NULL;
- ctx->current_crl_score = 0;
- ctx->current_reasons = 0;
- while (ctx->current_reasons != CRLDP_ALL_REASONS)
- {
- last_reasons = ctx->current_reasons;
- /* Try to retrieve relevant CRL */
- if (ctx->get_crl)
- ok = ctx->get_crl(ctx, &crl, x);
- else
- ok = get_crl_delta(ctx, &crl, &dcrl, x);
- /* If error looking up CRL, nothing we can do except
- * notify callback
- */
- if(!ok)
- {
- ctx->error = X509_V_ERR_UNABLE_TO_GET_CRL;
- ok = ctx->verify_cb(0, ctx);
- goto err;
- }
- ctx->current_crl = crl;
- ok = ctx->check_crl(ctx, crl);
- if (!ok)
- goto err;
-
- if (dcrl)
- {
- ok = ctx->check_crl(ctx, dcrl);
- if (!ok)
- goto err;
- ok = ctx->cert_crl(ctx, dcrl, x);
- if (!ok)
- goto err;
- }
- else
- ok = 1;
-
- /* Don't look in full CRL if delta reason is removefromCRL */
- if (ok != 2)
- {
- ok = ctx->cert_crl(ctx, crl, x);
- if (!ok)
- goto err;
- }
-
- X509_CRL_free(crl);
- X509_CRL_free(dcrl);
- crl = NULL;
- dcrl = NULL;
- /* If reasons not updated we wont get anywhere by
- * another iteration, so exit loop.
- */
- if (last_reasons == ctx->current_reasons)
- {
- ctx->error = X509_V_ERR_UNABLE_TO_GET_CRL;
- ok = ctx->verify_cb(0, ctx);
- goto err;
- }
- }
- err:
- X509_CRL_free(crl);
- X509_CRL_free(dcrl);
-
- ctx->current_crl = NULL;
- return ok;
-
- }
+{
+ X509_CRL *crl = NULL, *dcrl = NULL;
+ X509 *x;
+ int ok, cnum;
+ unsigned int last_reasons;
+ cnum = ctx->error_depth;
+ x = sk_X509_value(ctx->chain, cnum);
+ ctx->current_cert = x;
+ ctx->current_issuer = NULL;
+ ctx->current_crl_score = 0;
+ ctx->current_reasons = 0;
+ while (ctx->current_reasons != CRLDP_ALL_REASONS) {
+ last_reasons = ctx->current_reasons;
+ /* Try to retrieve relevant CRL */
+ if (ctx->get_crl)
+ ok = ctx->get_crl(ctx, &crl, x);
+ else
+ ok = get_crl_delta(ctx, &crl, &dcrl, x);
+ /*
+ * If error looking up CRL, nothing we can do except notify callback
+ */
+ if (!ok) {
+ ctx->error = X509_V_ERR_UNABLE_TO_GET_CRL;
+ ok = ctx->verify_cb(0, ctx);
+ goto err;
+ }
+ ctx->current_crl = crl;
+ ok = ctx->check_crl(ctx, crl);
+ if (!ok)
+ goto err;
+
+ if (dcrl) {
+ ok = ctx->check_crl(ctx, dcrl);
+ if (!ok)
+ goto err;
+ ok = ctx->cert_crl(ctx, dcrl, x);
+ if (!ok)
+ goto err;
+ } else
+ ok = 1;
+
+ /* Don't look in full CRL if delta reason is removefromCRL */
+ if (ok != 2) {
+ ok = ctx->cert_crl(ctx, crl, x);
+ if (!ok)
+ goto err;
+ }
+
+ X509_CRL_free(crl);
+ X509_CRL_free(dcrl);
+ crl = NULL;
+ dcrl = NULL;
+ /*
+ * If reasons not updated we wont get anywhere by another iteration,
+ * so exit loop.
+ */
+ if (last_reasons == ctx->current_reasons) {
+ ctx->error = X509_V_ERR_UNABLE_TO_GET_CRL;
+ ok = ctx->verify_cb(0, ctx);
+ goto err;
+ }
+ }
+ err:
+ X509_CRL_free(crl);
+ X509_CRL_free(dcrl);
+
+ ctx->current_crl = NULL;
+ return ok;
+
+}
/* Check CRL times against values in X509_STORE_CTX */
static int check_crl_time(X509_STORE_CTX *ctx, X509_CRL *crl, int notify)
- {
- time_t *ptime;
- int i;
- if (notify)
- ctx->current_crl = crl;
- if (ctx->param->flags & X509_V_FLAG_USE_CHECK_TIME)
- ptime = &ctx->param->check_time;
- else
- ptime = NULL;
-
- i=X509_cmp_time(X509_CRL_get_lastUpdate(crl), ptime);
- if (i == 0)
- {
- if (!notify)
- return 0;
- ctx->error=X509_V_ERR_ERROR_IN_CRL_LAST_UPDATE_FIELD;
- if (!ctx->verify_cb(0, ctx))
- return 0;
- }
-
- if (i > 0)
- {
- if (!notify)
- return 0;
- ctx->error=X509_V_ERR_CRL_NOT_YET_VALID;
- if (!ctx->verify_cb(0, ctx))
- return 0;
- }
-
- if(X509_CRL_get_nextUpdate(crl))
- {
- i=X509_cmp_time(X509_CRL_get_nextUpdate(crl), ptime);
-
- if (i == 0)
- {
- if (!notify)
- return 0;
- ctx->error=X509_V_ERR_ERROR_IN_CRL_NEXT_UPDATE_FIELD;
- if (!ctx->verify_cb(0, ctx))
- return 0;
- }
- /* Ignore expiry of base CRL is delta is valid */
- if ((i < 0) && !(ctx->current_crl_score & CRL_SCORE_TIME_DELTA))
- {
- if (!notify)
- return 0;
- ctx->error=X509_V_ERR_CRL_HAS_EXPIRED;
- if (!ctx->verify_cb(0, ctx))
- return 0;
- }
- }
-
- if (notify)
- ctx->current_crl = NULL;
-
- return 1;
- }
+{
+ time_t *ptime;
+ int i;
+ if (notify)
+ ctx->current_crl = crl;
+ if (ctx->param->flags & X509_V_FLAG_USE_CHECK_TIME)
+ ptime = &ctx->param->check_time;
+ else
+ ptime = NULL;
+
+ i = X509_cmp_time(X509_CRL_get_lastUpdate(crl), ptime);
+ if (i == 0) {
+ if (!notify)
+ return 0;
+ ctx->error = X509_V_ERR_ERROR_IN_CRL_LAST_UPDATE_FIELD;
+ if (!ctx->verify_cb(0, ctx))
+ return 0;
+ }
+
+ if (i > 0) {
+ if (!notify)
+ return 0;
+ ctx->error = X509_V_ERR_CRL_NOT_YET_VALID;
+ if (!ctx->verify_cb(0, ctx))
+ return 0;
+ }
+
+ if (X509_CRL_get_nextUpdate(crl)) {
+ i = X509_cmp_time(X509_CRL_get_nextUpdate(crl), ptime);
+
+ if (i == 0) {
+ if (!notify)
+ return 0;
+ ctx->error = X509_V_ERR_ERROR_IN_CRL_NEXT_UPDATE_FIELD;
+ if (!ctx->verify_cb(0, ctx))
+ return 0;
+ }
+ /* Ignore expiry of base CRL is delta is valid */
+ if ((i < 0) && !(ctx->current_crl_score & CRL_SCORE_TIME_DELTA)) {
+ if (!notify)
+ return 0;
+ ctx->error = X509_V_ERR_CRL_HAS_EXPIRED;
+ if (!ctx->verify_cb(0, ctx))
+ return 0;
+ }
+ }
+
+ if (notify)
+ ctx->current_crl = NULL;
+
+ return 1;
+}
static int get_crl_sk(X509_STORE_CTX *ctx, X509_CRL **pcrl, X509_CRL **pdcrl,
- X509 **pissuer, int *pscore, unsigned int *preasons,
- STACK_OF(X509_CRL) *crls)
- {
- int i, crl_score, best_score = *pscore;
- unsigned int reasons, best_reasons = 0;
- X509 *x = ctx->current_cert;
- X509_CRL *crl, *best_crl = NULL;
- X509 *crl_issuer = NULL, *best_crl_issuer = NULL;
-
- for (i = 0; i < sk_X509_CRL_num(crls); i++)
- {
- crl = sk_X509_CRL_value(crls, i);
- reasons = *preasons;
- crl_score = get_crl_score(ctx, &crl_issuer, &reasons, crl, x);
-
- if (crl_score > best_score)
- {
- best_crl = crl;
- best_crl_issuer = crl_issuer;
- best_score = crl_score;
- best_reasons = reasons;
- }
- }
-
- if (best_crl)
- {
- if (*pcrl)
- X509_CRL_free(*pcrl);
- *pcrl = best_crl;
- *pissuer = best_crl_issuer;
- *pscore = best_score;
- *preasons = best_reasons;
- CRYPTO_add(&best_crl->references, 1, CRYPTO_LOCK_X509_CRL);
- if (*pdcrl)
- {
- X509_CRL_free(*pdcrl);
- *pdcrl = NULL;
- }
- get_delta_sk(ctx, pdcrl, pscore, best_crl, crls);
- }
-
- if (best_score >= CRL_SCORE_VALID)
- return 1;
-
- return 0;
- }
-
-/* Compare two CRL extensions for delta checking purposes. They should be
+ X509 **pissuer, int *pscore, unsigned int *preasons,
+ STACK_OF(X509_CRL) *crls)
+{
+ int i, crl_score, best_score = *pscore;
+ unsigned int reasons, best_reasons = 0;
+ X509 *x = ctx->current_cert;
+ X509_CRL *crl, *best_crl = NULL;
+ X509 *crl_issuer = NULL, *best_crl_issuer = NULL;
+
+ for (i = 0; i < sk_X509_CRL_num(crls); i++) {
+ crl = sk_X509_CRL_value(crls, i);
+ reasons = *preasons;
+ crl_score = get_crl_score(ctx, &crl_issuer, &reasons, crl, x);
+
+ if (crl_score > best_score) {
+ best_crl = crl;
+ best_crl_issuer = crl_issuer;
+ best_score = crl_score;
+ best_reasons = reasons;
+ }
+ }
+
+ if (best_crl) {
+ if (*pcrl)
+ X509_CRL_free(*pcrl);
+ *pcrl = best_crl;
+ *pissuer = best_crl_issuer;
+ *pscore = best_score;
+ *preasons = best_reasons;
+ CRYPTO_add(&best_crl->references, 1, CRYPTO_LOCK_X509_CRL);
+ if (*pdcrl) {
+ X509_CRL_free(*pdcrl);
+ *pdcrl = NULL;
+ }
+ get_delta_sk(ctx, pdcrl, pscore, best_crl, crls);
+ }
+
+ if (best_score >= CRL_SCORE_VALID)
+ return 1;
+
+ return 0;
+}
+
+/*
+ * Compare two CRL extensions for delta checking purposes. They should be
* both present or both absent. If both present all fields must be identical.
*/
static int crl_extension_match(X509_CRL *a, X509_CRL *b, int nid)
- {
- ASN1_OCTET_STRING *exta, *extb;
- int i;
- i = X509_CRL_get_ext_by_NID(a, nid, -1);
- if (i >= 0)
- {
- /* Can't have multiple occurrences */
- if (X509_CRL_get_ext_by_NID(a, nid, i) != -1)
- return 0;
- exta = X509_EXTENSION_get_data(X509_CRL_get_ext(a, i));
- }
- else
- exta = NULL;
-
- i = X509_CRL_get_ext_by_NID(b, nid, -1);
+{
+ ASN1_OCTET_STRING *exta, *extb;
+ int i;
+ i = X509_CRL_get_ext_by_NID(a, nid, -1);
+ if (i >= 0) {
+ /* Can't have multiple occurrences */
+ if (X509_CRL_get_ext_by_NID(a, nid, i) != -1)
+ return 0;
+ exta = X509_EXTENSION_get_data(X509_CRL_get_ext(a, i));
+ } else
+ exta = NULL;
- if (i >= 0)
- {
+ i = X509_CRL_get_ext_by_NID(b, nid, -1);
- if (X509_CRL_get_ext_by_NID(b, nid, i) != -1)
- return 0;
- extb = X509_EXTENSION_get_data(X509_CRL_get_ext(b, i));
- }
- else
- extb = NULL;
+ if (i >= 0) {
- if (!exta && !extb)
- return 1;
+ if (X509_CRL_get_ext_by_NID(b, nid, i) != -1)
+ return 0;
+ extb = X509_EXTENSION_get_data(X509_CRL_get_ext(b, i));
+ } else
+ extb = NULL;
- if (!exta || !extb)
- return 0;
+ if (!exta && !extb)
+ return 1;
+ if (!exta || !extb)
+ return 0;
- if (ASN1_OCTET_STRING_cmp(exta, extb))
- return 0;
+ if (ASN1_OCTET_STRING_cmp(exta, extb))
+ return 0;
- return 1;
- }
+ return 1;
+}
/* See if a base and delta are compatible */
static int check_delta_base(X509_CRL *delta, X509_CRL *base)
- {
- /* Delta CRL must be a delta */
- if (!delta->base_crl_number)
- return 0;
- /* Base must have a CRL number */
- if (!base->crl_number)
- return 0;
- /* Issuer names must match */
- if (X509_NAME_cmp(X509_CRL_get_issuer(base),
- X509_CRL_get_issuer(delta)))
- return 0;
- /* AKID and IDP must match */
- if (!crl_extension_match(delta, base, NID_authority_key_identifier))
- return 0;
- if (!crl_extension_match(delta, base, NID_issuing_distribution_point))
- return 0;
- /* Delta CRL base number must not exceed Full CRL number. */
- if (ASN1_INTEGER_cmp(delta->base_crl_number, base->crl_number) > 0)
- return 0;
- /* Delta CRL number must exceed full CRL number */
- if (ASN1_INTEGER_cmp(delta->crl_number, base->crl_number) > 0)
- return 1;
- return 0;
- }
-
-/* For a given base CRL find a delta... maybe extend to delta scoring
- * or retrieve a chain of deltas...
+{
+ /* Delta CRL must be a delta */
+ if (!delta->base_crl_number)
+ return 0;
+ /* Base must have a CRL number */
+ if (!base->crl_number)
+ return 0;
+ /* Issuer names must match */
+ if (X509_NAME_cmp(X509_CRL_get_issuer(base), X509_CRL_get_issuer(delta)))
+ return 0;
+ /* AKID and IDP must match */
+ if (!crl_extension_match(delta, base, NID_authority_key_identifier))
+ return 0;
+ if (!crl_extension_match(delta, base, NID_issuing_distribution_point))
+ return 0;
+ /* Delta CRL base number must not exceed Full CRL number. */
+ if (ASN1_INTEGER_cmp(delta->base_crl_number, base->crl_number) > 0)
+ return 0;
+ /* Delta CRL number must exceed full CRL number */
+ if (ASN1_INTEGER_cmp(delta->crl_number, base->crl_number) > 0)
+ return 1;
+ return 0;
+}
+
+/*
+ * For a given base CRL find a delta... maybe extend to delta scoring or
+ * retrieve a chain of deltas...
*/
static void get_delta_sk(X509_STORE_CTX *ctx, X509_CRL **dcrl, int *pscore,
- X509_CRL *base, STACK_OF(X509_CRL) *crls)
- {
- X509_CRL *delta;
- int i;
- if (!(ctx->param->flags & X509_V_FLAG_USE_DELTAS))
- return;
- if (!((ctx->current_cert->ex_flags | base->flags) & EXFLAG_FRESHEST))
- return;
- for (i = 0; i < sk_X509_CRL_num(crls); i++)
- {
- delta = sk_X509_CRL_value(crls, i);
- if (check_delta_base(delta, base))
- {
- if (check_crl_time(ctx, delta, 0))
- *pscore |= CRL_SCORE_TIME_DELTA;
- CRYPTO_add(&delta->references, 1, CRYPTO_LOCK_X509_CRL);
- *dcrl = delta;
- return;
- }
- }
- *dcrl = NULL;
- }
-
-/* For a given CRL return how suitable it is for the supplied certificate 'x'.
- * The return value is a mask of several criteria.
- * If the issuer is not the certificate issuer this is returned in *pissuer.
- * The reasons mask is also used to determine if the CRL is suitable: if
- * no new reasons the CRL is rejected, otherwise reasons is updated.
+ X509_CRL *base, STACK_OF(X509_CRL) *crls)
+{
+ X509_CRL *delta;
+ int i;
+ if (!(ctx->param->flags & X509_V_FLAG_USE_DELTAS))
+ return;
+ if (!((ctx->current_cert->ex_flags | base->flags) & EXFLAG_FRESHEST))
+ return;
+ for (i = 0; i < sk_X509_CRL_num(crls); i++) {
+ delta = sk_X509_CRL_value(crls, i);
+ if (check_delta_base(delta, base)) {
+ if (check_crl_time(ctx, delta, 0))
+ *pscore |= CRL_SCORE_TIME_DELTA;
+ CRYPTO_add(&delta->references, 1, CRYPTO_LOCK_X509_CRL);
+ *dcrl = delta;
+ return;
+ }
+ }
+ *dcrl = NULL;
+}
+
+/*
+ * For a given CRL return how suitable it is for the supplied certificate
+ * 'x'. The return value is a mask of several criteria. If the issuer is not
+ * the certificate issuer this is returned in *pissuer. The reasons mask is
+ * also used to determine if the CRL is suitable: if no new reasons the CRL
+ * is rejected, otherwise reasons is updated.
*/
static int get_crl_score(X509_STORE_CTX *ctx, X509 **pissuer,
- unsigned int *preasons,
- X509_CRL *crl, X509 *x)
- {
-
- int crl_score = 0;
- unsigned int tmp_reasons = *preasons, crl_reasons;
-
- /* First see if we can reject CRL straight away */
-
- /* Invalid IDP cannot be processed */
- if (crl->idp_flags & IDP_INVALID)
- return 0;
- /* Reason codes or indirect CRLs need extended CRL support */
- if (!(ctx->param->flags & X509_V_FLAG_EXTENDED_CRL_SUPPORT))
- {
- if (crl->idp_flags & (IDP_INDIRECT | IDP_REASONS))
- return 0;
- }
- else if (crl->idp_flags & IDP_REASONS)
- {
- /* If no new reasons reject */
- if (!(crl->idp_reasons & ~tmp_reasons))
- return 0;
- }
- /* Don't process deltas at this stage */
- else if (crl->base_crl_number)
- return 0;
- /* If issuer name doesn't match certificate need indirect CRL */
- if (X509_NAME_cmp(X509_get_issuer_name(x), X509_CRL_get_issuer(crl)))
- {
- if (!(crl->idp_flags & IDP_INDIRECT))
- return 0;
- }
- else
- crl_score |= CRL_SCORE_ISSUER_NAME;
-
- if (!(crl->flags & EXFLAG_CRITICAL))
- crl_score |= CRL_SCORE_NOCRITICAL;
-
- /* Check expiry */
- if (check_crl_time(ctx, crl, 0))
- crl_score |= CRL_SCORE_TIME;
-
- /* Check authority key ID and locate certificate issuer */
- crl_akid_check(ctx, crl, pissuer, &crl_score);
-
- /* If we can't locate certificate issuer at this point forget it */
-
- if (!(crl_score & CRL_SCORE_AKID))
- return 0;
-
- /* Check cert for matching CRL distribution points */
-
- if (crl_crldp_check(x, crl, crl_score, &crl_reasons))
- {
- /* If no new reasons reject */
- if (!(crl_reasons & ~tmp_reasons))
- return 0;
- tmp_reasons |= crl_reasons;
- crl_score |= CRL_SCORE_SCOPE;
- }
-
- *preasons = tmp_reasons;
-
- return crl_score;
-
- }
+ unsigned int *preasons, X509_CRL *crl, X509 *x)
+{
+
+ int crl_score = 0;
+ unsigned int tmp_reasons = *preasons, crl_reasons;
+
+ /* First see if we can reject CRL straight away */
+
+ /* Invalid IDP cannot be processed */
+ if (crl->idp_flags & IDP_INVALID)
+ return 0;
+ /* Reason codes or indirect CRLs need extended CRL support */
+ if (!(ctx->param->flags & X509_V_FLAG_EXTENDED_CRL_SUPPORT)) {
+ if (crl->idp_flags & (IDP_INDIRECT | IDP_REASONS))
+ return 0;
+ } else if (crl->idp_flags & IDP_REASONS) {
+ /* If no new reasons reject */
+ if (!(crl->idp_reasons & ~tmp_reasons))
+ return 0;
+ }
+ /* Don't process deltas at this stage */
+ else if (crl->base_crl_number)
+ return 0;
+ /* If issuer name doesn't match certificate need indirect CRL */
+ if (X509_NAME_cmp(X509_get_issuer_name(x), X509_CRL_get_issuer(crl))) {
+ if (!(crl->idp_flags & IDP_INDIRECT))
+ return 0;
+ } else
+ crl_score |= CRL_SCORE_ISSUER_NAME;
+
+ if (!(crl->flags & EXFLAG_CRITICAL))
+ crl_score |= CRL_SCORE_NOCRITICAL;
+
+ /* Check expiry */
+ if (check_crl_time(ctx, crl, 0))
+ crl_score |= CRL_SCORE_TIME;
+
+ /* Check authority key ID and locate certificate issuer */
+ crl_akid_check(ctx, crl, pissuer, &crl_score);
+
+ /* If we can't locate certificate issuer at this point forget it */
+
+ if (!(crl_score & CRL_SCORE_AKID))
+ return 0;
+
+ /* Check cert for matching CRL distribution points */
+
+ if (crl_crldp_check(x, crl, crl_score, &crl_reasons)) {
+ /* If no new reasons reject */
+ if (!(crl_reasons & ~tmp_reasons))
+ return 0;
+ tmp_reasons |= crl_reasons;
+ crl_score |= CRL_SCORE_SCOPE;
+ }
+
+ *preasons = tmp_reasons;
+
+ return crl_score;
+
+}
static void crl_akid_check(X509_STORE_CTX *ctx, X509_CRL *crl,
- X509 **pissuer, int *pcrl_score)
- {
- X509 *crl_issuer = NULL;
- X509_NAME *cnm = X509_CRL_get_issuer(crl);
- int cidx = ctx->error_depth;
- int i;
-
- if (cidx != sk_X509_num(ctx->chain) - 1)
- cidx++;
-
- crl_issuer = sk_X509_value(ctx->chain, cidx);
-
- if (X509_check_akid(crl_issuer, crl->akid) == X509_V_OK)
- {
- if (*pcrl_score & CRL_SCORE_ISSUER_NAME)
- {
- *pcrl_score |= CRL_SCORE_AKID|CRL_SCORE_ISSUER_CERT;
- *pissuer = crl_issuer;
- return;
- }
- }
-
- for (cidx++; cidx < sk_X509_num(ctx->chain); cidx++)
- {
- crl_issuer = sk_X509_value(ctx->chain, cidx);
- if (X509_NAME_cmp(X509_get_subject_name(crl_issuer), cnm))
- continue;
- if (X509_check_akid(crl_issuer, crl->akid) == X509_V_OK)
- {
- *pcrl_score |= CRL_SCORE_AKID|CRL_SCORE_SAME_PATH;
- *pissuer = crl_issuer;
- return;
- }
- }
-
- /* Anything else needs extended CRL support */
-
- if (!(ctx->param->flags & X509_V_FLAG_EXTENDED_CRL_SUPPORT))
- return;
-
- /* Otherwise the CRL issuer is not on the path. Look for it in the
- * set of untrusted certificates.
- */
- for (i = 0; i < sk_X509_num(ctx->untrusted); i++)
- {
- crl_issuer = sk_X509_value(ctx->untrusted, i);
- if (X509_NAME_cmp(X509_get_subject_name(crl_issuer), cnm))
- continue;
- if (X509_check_akid(crl_issuer, crl->akid) == X509_V_OK)
- {
- *pissuer = crl_issuer;
- *pcrl_score |= CRL_SCORE_AKID;
- return;
- }
- }
- }
-
-/* Check the path of a CRL issuer certificate. This creates a new
+ X509 **pissuer, int *pcrl_score)
+{
+ X509 *crl_issuer = NULL;
+ X509_NAME *cnm = X509_CRL_get_issuer(crl);
+ int cidx = ctx->error_depth;
+ int i;
+
+ if (cidx != sk_X509_num(ctx->chain) - 1)
+ cidx++;
+
+ crl_issuer = sk_X509_value(ctx->chain, cidx);
+
+ if (X509_check_akid(crl_issuer, crl->akid) == X509_V_OK) {
+ if (*pcrl_score & CRL_SCORE_ISSUER_NAME) {
+ *pcrl_score |= CRL_SCORE_AKID | CRL_SCORE_ISSUER_CERT;
+ *pissuer = crl_issuer;
+ return;
+ }
+ }
+
+ for (cidx++; cidx < sk_X509_num(ctx->chain); cidx++) {
+ crl_issuer = sk_X509_value(ctx->chain, cidx);
+ if (X509_NAME_cmp(X509_get_subject_name(crl_issuer), cnm))
+ continue;
+ if (X509_check_akid(crl_issuer, crl->akid) == X509_V_OK) {
+ *pcrl_score |= CRL_SCORE_AKID | CRL_SCORE_SAME_PATH;
+ *pissuer = crl_issuer;
+ return;
+ }
+ }
+
+ /* Anything else needs extended CRL support */
+
+ if (!(ctx->param->flags & X509_V_FLAG_EXTENDED_CRL_SUPPORT))
+ return;
+
+ /*
+ * Otherwise the CRL issuer is not on the path. Look for it in the set of
+ * untrusted certificates.
+ */
+ for (i = 0; i < sk_X509_num(ctx->untrusted); i++) {
+ crl_issuer = sk_X509_value(ctx->untrusted, i);
+ if (X509_NAME_cmp(X509_get_subject_name(crl_issuer), cnm))
+ continue;
+ if (X509_check_akid(crl_issuer, crl->akid) == X509_V_OK) {
+ *pissuer = crl_issuer;
+ *pcrl_score |= CRL_SCORE_AKID;
+ return;
+ }
+ }
+}
+
+/*
+ * Check the path of a CRL issuer certificate. This creates a new
* X509_STORE_CTX and populates it with most of the parameters from the
- * parent. This could be optimised somewhat since a lot of path checking
- * will be duplicated by the parent, but this will rarely be used in
- * practice.
+ * parent. This could be optimised somewhat since a lot of path checking will
+ * be duplicated by the parent, but this will rarely be used in practice.
*/
static int check_crl_path(X509_STORE_CTX *ctx, X509 *x)
- {
- X509_STORE_CTX crl_ctx;
- int ret;
- /* Don't allow recursive CRL path validation */
- if (ctx->parent)
- return 0;
- if (!X509_STORE_CTX_init(&crl_ctx, ctx->ctx, x, ctx->untrusted))
- return -1;
-
- crl_ctx.crls = ctx->crls;
- /* Copy verify params across */
- X509_STORE_CTX_set0_param(&crl_ctx, ctx->param);
-
- crl_ctx.parent = ctx;
- crl_ctx.verify_cb = ctx->verify_cb;
-
- /* Verify CRL issuer */
- ret = X509_verify_cert(&crl_ctx);
-
- if (ret <= 0)
- goto err;
-
- /* Check chain is acceptable */
-
- ret = check_crl_chain(ctx, ctx->chain, crl_ctx.chain);
- err:
- X509_STORE_CTX_cleanup(&crl_ctx);
- return ret;
- }
-
-/* RFC3280 says nothing about the relationship between CRL path
- * and certificate path, which could lead to situations where a
- * certificate could be revoked or validated by a CA not authorised
- * to do so. RFC5280 is more strict and states that the two paths must
- * end in the same trust anchor, though some discussions remain...
- * until this is resolved we use the RFC5280 version
+{
+ X509_STORE_CTX crl_ctx;
+ int ret;
+ /* Don't allow recursive CRL path validation */
+ if (ctx->parent)
+ return 0;
+ if (!X509_STORE_CTX_init(&crl_ctx, ctx->ctx, x, ctx->untrusted))
+ return -1;
+
+ crl_ctx.crls = ctx->crls;
+ /* Copy verify params across */
+ X509_STORE_CTX_set0_param(&crl_ctx, ctx->param);
+
+ crl_ctx.parent = ctx;
+ crl_ctx.verify_cb = ctx->verify_cb;
+
+ /* Verify CRL issuer */
+ ret = X509_verify_cert(&crl_ctx);
+
+ if (ret <= 0)
+ goto err;
+
+ /* Check chain is acceptable */
+
+ ret = check_crl_chain(ctx, ctx->chain, crl_ctx.chain);
+ err:
+ X509_STORE_CTX_cleanup(&crl_ctx);
+ return ret;
+}
+
+/*
+ * RFC3280 says nothing about the relationship between CRL path and
+ * certificate path, which could lead to situations where a certificate could
+ * be revoked or validated by a CA not authorised to do so. RFC5280 is more
+ * strict and states that the two paths must end in the same trust anchor,
+ * though some discussions remain... until this is resolved we use the
+ * RFC5280 version
*/
static int check_crl_chain(X509_STORE_CTX *ctx,
- STACK_OF(X509) *cert_path,
- STACK_OF(X509) *crl_path)
- {
- X509 *cert_ta, *crl_ta;
- cert_ta = sk_X509_value(cert_path, sk_X509_num(cert_path) - 1);
- crl_ta = sk_X509_value(crl_path, sk_X509_num(crl_path) - 1);
- if (!X509_cmp(cert_ta, crl_ta))
- return 1;
- return 0;
- }
-
-/* Check for match between two dist point names: three separate cases.
+ STACK_OF(X509) *cert_path,
+ STACK_OF(X509) *crl_path)
+{
+ X509 *cert_ta, *crl_ta;
+ cert_ta = sk_X509_value(cert_path, sk_X509_num(cert_path) - 1);
+ crl_ta = sk_X509_value(crl_path, sk_X509_num(crl_path) - 1);
+ if (!X509_cmp(cert_ta, crl_ta))
+ return 1;
+ return 0;
+}
+
+/*-
+ * Check for match between two dist point names: three separate cases.
* 1. Both are relative names and compare X509_NAME types.
* 2. One full, one relative. Compare X509_NAME to GENERAL_NAMES.
* 3. Both are full names and compare two GENERAL_NAMES.
* 4. One is NULL: automatic match.
*/
-
static int idp_check_dp(DIST_POINT_NAME *a, DIST_POINT_NAME *b)
- {
- X509_NAME *nm = NULL;
- GENERAL_NAMES *gens = NULL;
- GENERAL_NAME *gena, *genb;
- int i, j;
- if (!a || !b)
- return 1;
- if (a->type == 1)
- {
- if (!a->dpname)
- return 0;
- /* Case 1: two X509_NAME */
- if (b->type == 1)
- {
- if (!b->dpname)
- return 0;
- if (!X509_NAME_cmp(a->dpname, b->dpname))
- return 1;
- else
- return 0;
- }
- /* Case 2: set name and GENERAL_NAMES appropriately */
- nm = a->dpname;
- gens = b->name.fullname;
- }
- else if (b->type == 1)
- {
- if (!b->dpname)
- return 0;
- /* Case 2: set name and GENERAL_NAMES appropriately */
- gens = a->name.fullname;
- nm = b->dpname;
- }
-
- /* Handle case 2 with one GENERAL_NAMES and one X509_NAME */
- if (nm)
- {
- for (i = 0; i < sk_GENERAL_NAME_num(gens); i++)
- {
- gena = sk_GENERAL_NAME_value(gens, i);
- if (gena->type != GEN_DIRNAME)
- continue;
- if (!X509_NAME_cmp(nm, gena->d.directoryName))
- return 1;
- }
- return 0;
- }
-
- /* Else case 3: two GENERAL_NAMES */
-
- for (i = 0; i < sk_GENERAL_NAME_num(a->name.fullname); i++)
- {
- gena = sk_GENERAL_NAME_value(a->name.fullname, i);
- for (j = 0; j < sk_GENERAL_NAME_num(b->name.fullname); j++)
- {
- genb = sk_GENERAL_NAME_value(b->name.fullname, j);
- if (!GENERAL_NAME_cmp(gena, genb))
- return 1;
- }
- }
-
- return 0;
-
- }
+{
+ X509_NAME *nm = NULL;
+ GENERAL_NAMES *gens = NULL;
+ GENERAL_NAME *gena, *genb;
+ int i, j;
+ if (!a || !b)
+ return 1;
+ if (a->type == 1) {
+ if (!a->dpname)
+ return 0;
+ /* Case 1: two X509_NAME */
+ if (b->type == 1) {
+ if (!b->dpname)
+ return 0;
+ if (!X509_NAME_cmp(a->dpname, b->dpname))
+ return 1;
+ else
+ return 0;
+ }
+ /* Case 2: set name and GENERAL_NAMES appropriately */
+ nm = a->dpname;
+ gens = b->name.fullname;
+ } else if (b->type == 1) {
+ if (!b->dpname)
+ return 0;
+ /* Case 2: set name and GENERAL_NAMES appropriately */
+ gens = a->name.fullname;
+ nm = b->dpname;
+ }
+
+ /* Handle case 2 with one GENERAL_NAMES and one X509_NAME */
+ if (nm) {
+ for (i = 0; i < sk_GENERAL_NAME_num(gens); i++) {
+ gena = sk_GENERAL_NAME_value(gens, i);
+ if (gena->type != GEN_DIRNAME)
+ continue;
+ if (!X509_NAME_cmp(nm, gena->d.directoryName))
+ return 1;
+ }
+ return 0;
+ }
+
+ /* Else case 3: two GENERAL_NAMES */
+
+ for (i = 0; i < sk_GENERAL_NAME_num(a->name.fullname); i++) {
+ gena = sk_GENERAL_NAME_value(a->name.fullname, i);
+ for (j = 0; j < sk_GENERAL_NAME_num(b->name.fullname); j++) {
+ genb = sk_GENERAL_NAME_value(b->name.fullname, j);
+ if (!GENERAL_NAME_cmp(gena, genb))
+ return 1;
+ }
+ }
+
+ return 0;
+
+}
static int crldp_check_crlissuer(DIST_POINT *dp, X509_CRL *crl, int crl_score)
- {
- int i;
- X509_NAME *nm = X509_CRL_get_issuer(crl);
- /* If no CRLissuer return is successful iff don't need a match */
- if (!dp->CRLissuer)
- return !!(crl_score & CRL_SCORE_ISSUER_NAME);
- for (i = 0; i < sk_GENERAL_NAME_num(dp->CRLissuer); i++)
- {
- GENERAL_NAME *gen = sk_GENERAL_NAME_value(dp->CRLissuer, i);
- if (gen->type != GEN_DIRNAME)
- continue;
- if (!X509_NAME_cmp(gen->d.directoryName, nm))
- return 1;
- }
- return 0;
- }
+{
+ int i;
+ X509_NAME *nm = X509_CRL_get_issuer(crl);
+ /* If no CRLissuer return is successful iff don't need a match */
+ if (!dp->CRLissuer)
+ return ! !(crl_score & CRL_SCORE_ISSUER_NAME);
+ for (i = 0; i < sk_GENERAL_NAME_num(dp->CRLissuer); i++) {
+ GENERAL_NAME *gen = sk_GENERAL_NAME_value(dp->CRLissuer, i);
+ if (gen->type != GEN_DIRNAME)
+ continue;
+ if (!X509_NAME_cmp(gen->d.directoryName, nm))
+ return 1;
+ }
+ return 0;
+}
/* Check CRLDP and IDP */
static int crl_crldp_check(X509 *x, X509_CRL *crl, int crl_score,
- unsigned int *preasons)
- {
- int i;
- if (crl->idp_flags & IDP_ONLYATTR)
- return 0;
- if (x->ex_flags & EXFLAG_CA)
- {
- if (crl->idp_flags & IDP_ONLYUSER)
- return 0;
- }
- else
- {
- if (crl->idp_flags & IDP_ONLYCA)
- return 0;
- }
- *preasons = crl->idp_reasons;
- for (i = 0; i < sk_DIST_POINT_num(x->crldp); i++)
- {
- DIST_POINT *dp = sk_DIST_POINT_value(x->crldp, i);
- if (crldp_check_crlissuer(dp, crl, crl_score))
- {
- if (!crl->idp ||
- idp_check_dp(dp->distpoint, crl->idp->distpoint))
- {
- *preasons &= dp->dp_reasons;
- return 1;
- }
- }
- }
- if ((!crl->idp || !crl->idp->distpoint) && (crl_score & CRL_SCORE_ISSUER_NAME))
- return 1;
- return 0;
- }
-
-/* Retrieve CRL corresponding to current certificate.
- * If deltas enabled try to find a delta CRL too
+ unsigned int *preasons)
+{
+ int i;
+ if (crl->idp_flags & IDP_ONLYATTR)
+ return 0;
+ if (x->ex_flags & EXFLAG_CA) {
+ if (crl->idp_flags & IDP_ONLYUSER)
+ return 0;
+ } else {
+ if (crl->idp_flags & IDP_ONLYCA)
+ return 0;
+ }
+ *preasons = crl->idp_reasons;
+ for (i = 0; i < sk_DIST_POINT_num(x->crldp); i++) {
+ DIST_POINT *dp = sk_DIST_POINT_value(x->crldp, i);
+ if (crldp_check_crlissuer(dp, crl, crl_score)) {
+ if (!crl->idp || idp_check_dp(dp->distpoint, crl->idp->distpoint)) {
+ *preasons &= dp->dp_reasons;
+ return 1;
+ }
+ }
+ }
+ if ((!crl->idp || !crl->idp->distpoint)
+ && (crl_score & CRL_SCORE_ISSUER_NAME))
+ return 1;
+ return 0;
+}
+
+/*
+ * Retrieve CRL corresponding to current certificate. If deltas enabled try
+ * to find a delta CRL too
*/
-
+
static int get_crl_delta(X509_STORE_CTX *ctx,
- X509_CRL **pcrl, X509_CRL **pdcrl, X509 *x)
- {
- int ok;
- X509 *issuer = NULL;
- int crl_score = 0;
- unsigned int reasons;
- X509_CRL *crl = NULL, *dcrl = NULL;
- STACK_OF(X509_CRL) *skcrl;
- X509_NAME *nm = X509_get_issuer_name(x);
- reasons = ctx->current_reasons;
- ok = get_crl_sk(ctx, &crl, &dcrl,
- &issuer, &crl_score, &reasons, ctx->crls);
-
- if (ok)
- goto done;
-
- /* Lookup CRLs from store */
-
- skcrl = ctx->lookup_crls(ctx, nm);
-
- /* If no CRLs found and a near match from get_crl_sk use that */
- if (!skcrl && crl)
- goto done;
-
- get_crl_sk(ctx, &crl, &dcrl, &issuer, &crl_score, &reasons, skcrl);
-
- sk_X509_CRL_pop_free(skcrl, X509_CRL_free);
-
- done:
-
- /* If we got any kind of CRL use it and return success */
- if (crl)
- {
- ctx->current_issuer = issuer;
- ctx->current_crl_score = crl_score;
- ctx->current_reasons = reasons;
- *pcrl = crl;
- *pdcrl = dcrl;
- return 1;
- }
-
- return 0;
- }
+ X509_CRL **pcrl, X509_CRL **pdcrl, X509 *x)
+{
+ int ok;
+ X509 *issuer = NULL;
+ int crl_score = 0;
+ unsigned int reasons;
+ X509_CRL *crl = NULL, *dcrl = NULL;
+ STACK_OF(X509_CRL) *skcrl;
+ X509_NAME *nm = X509_get_issuer_name(x);
+ reasons = ctx->current_reasons;
+ ok = get_crl_sk(ctx, &crl, &dcrl,
+ &issuer, &crl_score, &reasons, ctx->crls);
+
+ if (ok)
+ goto done;
+
+ /* Lookup CRLs from store */
+
+ skcrl = ctx->lookup_crls(ctx, nm);
+
+ /* If no CRLs found and a near match from get_crl_sk use that */
+ if (!skcrl && crl)
+ goto done;
+
+ get_crl_sk(ctx, &crl, &dcrl, &issuer, &crl_score, &reasons, skcrl);
+
+ sk_X509_CRL_pop_free(skcrl, X509_CRL_free);
+
+ done:
+
+ /* If we got any kind of CRL use it and return success */
+ if (crl) {
+ ctx->current_issuer = issuer;
+ ctx->current_crl_score = crl_score;
+ ctx->current_reasons = reasons;
+ *pcrl = crl;
+ *pdcrl = dcrl;
+ return 1;
+ }
+
+ return 0;
+}
/* Check CRL validity */
static int check_crl(X509_STORE_CTX *ctx, X509_CRL *crl)
- {
- X509 *issuer = NULL;
- EVP_PKEY *ikey = NULL;
- int ok = 0, chnum, cnum;
- cnum = ctx->error_depth;
- chnum = sk_X509_num(ctx->chain) - 1;
- /* if we have an alternative CRL issuer cert use that */
- if (ctx->current_issuer)
- issuer = ctx->current_issuer;
-
- /* Else find CRL issuer: if not last certificate then issuer
- * is next certificate in chain.
- */
- else if (cnum < chnum)
- issuer = sk_X509_value(ctx->chain, cnum + 1);
- else
- {
- issuer = sk_X509_value(ctx->chain, chnum);
- /* If not self signed, can't check signature */
- if(!ctx->check_issued(ctx, issuer, issuer))
- {
- ctx->error = X509_V_ERR_UNABLE_TO_GET_CRL_ISSUER;
- ok = ctx->verify_cb(0, ctx);
- if(!ok) goto err;
- }
- }
-
- if(issuer)
- {
- /* Skip most tests for deltas because they have already
- * been done
- */
- if (!crl->base_crl_number)
- {
- /* Check for cRLSign bit if keyUsage present */
- if ((issuer->ex_flags & EXFLAG_KUSAGE) &&
- !(issuer->ex_kusage & KU_CRL_SIGN))
- {
- ctx->error = X509_V_ERR_KEYUSAGE_NO_CRL_SIGN;
- ok = ctx->verify_cb(0, ctx);
- if(!ok) goto err;
- }
-
- if (!(ctx->current_crl_score & CRL_SCORE_SCOPE))
- {
- ctx->error = X509_V_ERR_DIFFERENT_CRL_SCOPE;
- ok = ctx->verify_cb(0, ctx);
- if(!ok) goto err;
- }
-
- if (!(ctx->current_crl_score & CRL_SCORE_SAME_PATH))
- {
- if (check_crl_path(ctx, ctx->current_issuer) <= 0)
- {
- ctx->error = X509_V_ERR_CRL_PATH_VALIDATION_ERROR;
- ok = ctx->verify_cb(0, ctx);
- if(!ok) goto err;
- }
- }
-
- if (crl->idp_flags & IDP_INVALID)
- {
- ctx->error = X509_V_ERR_INVALID_EXTENSION;
- ok = ctx->verify_cb(0, ctx);
- if(!ok) goto err;
- }
-
-
- }
-
- if (!(ctx->current_crl_score & CRL_SCORE_TIME))
- {
- ok = check_crl_time(ctx, crl, 1);
- if (!ok)
- goto err;
- }
-
- /* Attempt to get issuer certificate public key */
- ikey = X509_get_pubkey(issuer);
-
- if(!ikey)
- {
- ctx->error=X509_V_ERR_UNABLE_TO_DECODE_ISSUER_PUBLIC_KEY;
- ok = ctx->verify_cb(0, ctx);
- if (!ok) goto err;
- }
- else
- {
- /* Verify CRL signature */
- if(X509_CRL_verify(crl, ikey) <= 0)
- {
- ctx->error=X509_V_ERR_CRL_SIGNATURE_FAILURE;
- ok = ctx->verify_cb(0, ctx);
- if (!ok) goto err;
- }
- }
- }
-
- ok = 1;
-
- err:
- EVP_PKEY_free(ikey);
- return ok;
- }
+{
+ X509 *issuer = NULL;
+ EVP_PKEY *ikey = NULL;
+ int ok = 0, chnum, cnum;
+ cnum = ctx->error_depth;
+ chnum = sk_X509_num(ctx->chain) - 1;
+ /* if we have an alternative CRL issuer cert use that */
+ if (ctx->current_issuer)
+ issuer = ctx->current_issuer;
+
+ /*
+ * Else find CRL issuer: if not last certificate then issuer is next
+ * certificate in chain.
+ */
+ else if (cnum < chnum)
+ issuer = sk_X509_value(ctx->chain, cnum + 1);
+ else {
+ issuer = sk_X509_value(ctx->chain, chnum);
+ /* If not self signed, can't check signature */
+ if (!ctx->check_issued(ctx, issuer, issuer)) {
+ ctx->error = X509_V_ERR_UNABLE_TO_GET_CRL_ISSUER;
+ ok = ctx->verify_cb(0, ctx);
+ if (!ok)
+ goto err;
+ }
+ }
+
+ if (issuer) {
+ /*
+ * Skip most tests for deltas because they have already been done
+ */
+ if (!crl->base_crl_number) {
+ /* Check for cRLSign bit if keyUsage present */
+ if ((issuer->ex_flags & EXFLAG_KUSAGE) &&
+ !(issuer->ex_kusage & KU_CRL_SIGN)) {
+ ctx->error = X509_V_ERR_KEYUSAGE_NO_CRL_SIGN;
+ ok = ctx->verify_cb(0, ctx);
+ if (!ok)
+ goto err;
+ }
+
+ if (!(ctx->current_crl_score & CRL_SCORE_SCOPE)) {
+ ctx->error = X509_V_ERR_DIFFERENT_CRL_SCOPE;
+ ok = ctx->verify_cb(0, ctx);
+ if (!ok)
+ goto err;
+ }
+
+ if (!(ctx->current_crl_score & CRL_SCORE_SAME_PATH)) {
+ if (check_crl_path(ctx, ctx->current_issuer) <= 0) {
+ ctx->error = X509_V_ERR_CRL_PATH_VALIDATION_ERROR;
+ ok = ctx->verify_cb(0, ctx);
+ if (!ok)
+ goto err;
+ }
+ }
+
+ if (crl->idp_flags & IDP_INVALID) {
+ ctx->error = X509_V_ERR_INVALID_EXTENSION;
+ ok = ctx->verify_cb(0, ctx);
+ if (!ok)
+ goto err;
+ }
+
+ }
+
+ if (!(ctx->current_crl_score & CRL_SCORE_TIME)) {
+ ok = check_crl_time(ctx, crl, 1);
+ if (!ok)
+ goto err;
+ }
+
+ /* Attempt to get issuer certificate public key */
+ ikey = X509_get_pubkey(issuer);
+
+ if (!ikey) {
+ ctx->error = X509_V_ERR_UNABLE_TO_DECODE_ISSUER_PUBLIC_KEY;
+ ok = ctx->verify_cb(0, ctx);
+ if (!ok)
+ goto err;
+ } else {
+ /* Verify CRL signature */
+ if (X509_CRL_verify(crl, ikey) <= 0) {
+ ctx->error = X509_V_ERR_CRL_SIGNATURE_FAILURE;
+ ok = ctx->verify_cb(0, ctx);
+ if (!ok)
+ goto err;
+ }
+ }
+ }
+
+ ok = 1;
+
+ err:
+ EVP_PKEY_free(ikey);
+ return ok;
+}
/* Check certificate against CRL */
static int cert_crl(X509_STORE_CTX *ctx, X509_CRL *crl, X509 *x)
- {
- int ok;
- X509_REVOKED *rev;
- /* The rules changed for this... previously if a CRL contained
- * unhandled critical extensions it could still be used to indicate
- * a certificate was revoked. This has since been changed since
- * critical extension can change the meaning of CRL entries.
- */
- if (!(ctx->param->flags & X509_V_FLAG_IGNORE_CRITICAL)
- && (crl->flags & EXFLAG_CRITICAL))
- {
- ctx->error = X509_V_ERR_UNHANDLED_CRITICAL_CRL_EXTENSION;
- ok = ctx->verify_cb(0, ctx);
- if(!ok)
- return 0;
- }
- /* Look for serial number of certificate in CRL
- * If found make sure reason is not removeFromCRL.
- */
- if (X509_CRL_get0_by_cert(crl, &rev, x))
- {
- if (rev->reason == CRL_REASON_REMOVE_FROM_CRL)
- return 2;
- ctx->error = X509_V_ERR_CERT_REVOKED;
- ok = ctx->verify_cb(0, ctx);
- if (!ok)
- return 0;
- }
-
- return 1;
- }
+{
+ int ok;
+ X509_REVOKED *rev;
+ /*
+ * The rules changed for this... previously if a CRL contained unhandled
+ * critical extensions it could still be used to indicate a certificate
+ * was revoked. This has since been changed since critical extension can
+ * change the meaning of CRL entries.
+ */
+ if (!(ctx->param->flags & X509_V_FLAG_IGNORE_CRITICAL)
+ && (crl->flags & EXFLAG_CRITICAL)) {
+ ctx->error = X509_V_ERR_UNHANDLED_CRITICAL_CRL_EXTENSION;
+ ok = ctx->verify_cb(0, ctx);
+ if (!ok)
+ return 0;
+ }
+ /*
+ * Look for serial number of certificate in CRL If found make sure reason
+ * is not removeFromCRL.
+ */
+ if (X509_CRL_get0_by_cert(crl, &rev, x)) {
+ if (rev->reason == CRL_REASON_REMOVE_FROM_CRL)
+ return 2;
+ ctx->error = X509_V_ERR_CERT_REVOKED;
+ ok = ctx->verify_cb(0, ctx);
+ if (!ok)
+ return 0;
+ }
+
+ return 1;
+}
static int check_policy(X509_STORE_CTX *ctx)
- {
- int ret;
- if (ctx->parent)
- return 1;
- ret = X509_policy_check(&ctx->tree, &ctx->explicit_policy, ctx->chain,
- ctx->param->policies, ctx->param->flags);
- if (ret == 0)
- {
- X509err(X509_F_CHECK_POLICY,ERR_R_MALLOC_FAILURE);
- return 0;
- }
- /* Invalid or inconsistent extensions */
- if (ret == -1)
- {
- /* Locate certificates with bad extensions and notify
- * callback.
- */
- X509 *x;
- int i;
- for (i = 1; i < sk_X509_num(ctx->chain); i++)
- {
- x = sk_X509_value(ctx->chain, i);
- if (!(x->ex_flags & EXFLAG_INVALID_POLICY))
- continue;
- ctx->current_cert = x;
- ctx->error = X509_V_ERR_INVALID_POLICY_EXTENSION;
- if(!ctx->verify_cb(0, ctx))
- return 0;
- }
- return 1;
- }
- if (ret == -2)
- {
- ctx->current_cert = NULL;
- ctx->error = X509_V_ERR_NO_EXPLICIT_POLICY;
- return ctx->verify_cb(0, ctx);
- }
-
- if (ctx->param->flags & X509_V_FLAG_NOTIFY_POLICY)
- {
- ctx->current_cert = NULL;
- ctx->error = X509_V_OK;
- if (!ctx->verify_cb(2, ctx))
- return 0;
- }
-
- return 1;
- }
+{
+ int ret;
+ if (ctx->parent)
+ return 1;
+ ret = X509_policy_check(&ctx->tree, &ctx->explicit_policy, ctx->chain,
+ ctx->param->policies, ctx->param->flags);
+ if (ret == 0) {
+ X509err(X509_F_CHECK_POLICY, ERR_R_MALLOC_FAILURE);
+ return 0;
+ }
+ /* Invalid or inconsistent extensions */
+ if (ret == -1) {
+ /*
+ * Locate certificates with bad extensions and notify callback.
+ */
+ X509 *x;
+ int i;
+ for (i = 1; i < sk_X509_num(ctx->chain); i++) {
+ x = sk_X509_value(ctx->chain, i);
+ if (!(x->ex_flags & EXFLAG_INVALID_POLICY))
+ continue;
+ ctx->current_cert = x;
+ ctx->error = X509_V_ERR_INVALID_POLICY_EXTENSION;
+ if (!ctx->verify_cb(0, ctx))
+ return 0;
+ }
+ return 1;
+ }
+ if (ret == -2) {
+ ctx->current_cert = NULL;
+ ctx->error = X509_V_ERR_NO_EXPLICIT_POLICY;
+ return ctx->verify_cb(0, ctx);
+ }
+
+ if (ctx->param->flags & X509_V_FLAG_NOTIFY_POLICY) {
+ ctx->current_cert = NULL;
+ ctx->error = X509_V_OK;
+ if (!ctx->verify_cb(2, ctx))
+ return 0;
+ }
+
+ return 1;
+}
static int check_cert_time(X509_STORE_CTX *ctx, X509 *x)
- {
- time_t *ptime;
- int i;
-
- if (ctx->param->flags & X509_V_FLAG_USE_CHECK_TIME)
- ptime = &ctx->param->check_time;
- else
- ptime = NULL;
-
- i=X509_cmp_time(X509_get_notBefore(x), ptime);
- if (i == 0)
- {
- ctx->error=X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD;
- ctx->current_cert=x;
- if (!ctx->verify_cb(0, ctx))
- return 0;
- }
-
- if (i > 0)
- {
- ctx->error=X509_V_ERR_CERT_NOT_YET_VALID;
- ctx->current_cert=x;
- if (!ctx->verify_cb(0, ctx))
- return 0;
- }
-
- i=X509_cmp_time(X509_get_notAfter(x), ptime);
- if (i == 0)
- {
- ctx->error=X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD;
- ctx->current_cert=x;
- if (!ctx->verify_cb(0, ctx))
- return 0;
- }
-
- if (i < 0)
- {
- ctx->error=X509_V_ERR_CERT_HAS_EXPIRED;
- ctx->current_cert=x;
- if (!ctx->verify_cb(0, ctx))
- return 0;
- }
-
- return 1;
- }
+{
+ time_t *ptime;
+ int i;
+
+ if (ctx->param->flags & X509_V_FLAG_USE_CHECK_TIME)
+ ptime = &ctx->param->check_time;
+ else
+ ptime = NULL;
+
+ i = X509_cmp_time(X509_get_notBefore(x), ptime);
+ if (i == 0) {
+ ctx->error = X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD;
+ ctx->current_cert = x;
+ if (!ctx->verify_cb(0, ctx))
+ return 0;
+ }
+
+ if (i > 0) {
+ ctx->error = X509_V_ERR_CERT_NOT_YET_VALID;
+ ctx->current_cert = x;
+ if (!ctx->verify_cb(0, ctx))
+ return 0;
+ }
+
+ i = X509_cmp_time(X509_get_notAfter(x), ptime);
+ if (i == 0) {
+ ctx->error = X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD;
+ ctx->current_cert = x;
+ if (!ctx->verify_cb(0, ctx))
+ return 0;
+ }
+
+ if (i < 0) {
+ ctx->error = X509_V_ERR_CERT_HAS_EXPIRED;
+ ctx->current_cert = x;
+ if (!ctx->verify_cb(0, ctx))
+ return 0;
+ }
+
+ return 1;
+}
static int internal_verify(X509_STORE_CTX *ctx)
- {
- int ok=0,n;
- X509 *xs,*xi;
- EVP_PKEY *pkey=NULL;
- int (*cb)(int xok,X509_STORE_CTX *xctx);
-
- cb=ctx->verify_cb;
-
- n=sk_X509_num(ctx->chain);
- ctx->error_depth=n-1;
- n--;
- xi=sk_X509_value(ctx->chain,n);
-
- if (ctx->check_issued(ctx, xi, xi))
- xs=xi;
- else
- {
- if (n <= 0)
- {
- ctx->error=X509_V_ERR_UNABLE_TO_VERIFY_LEAF_SIGNATURE;
- ctx->current_cert=xi;
- ok=cb(0,ctx);
- goto end;
- }
- else
- {
- n--;
- ctx->error_depth=n;
- xs=sk_X509_value(ctx->chain,n);
- }
- }
-
-/* ctx->error=0; not needed */
- while (n >= 0)
- {
- ctx->error_depth=n;
-
- /* Skip signature check for self signed certificates unless
- * explicitly asked for. It doesn't add any security and
- * just wastes time.
- */
- if (!xs->valid && (xs != xi || (ctx->param->flags & X509_V_FLAG_CHECK_SS_SIGNATURE)))
- {
- if ((pkey=X509_get_pubkey(xi)) == NULL)
- {
- ctx->error=X509_V_ERR_UNABLE_TO_DECODE_ISSUER_PUBLIC_KEY;
- ctx->current_cert=xi;
- ok=(*cb)(0,ctx);
- if (!ok) goto end;
- }
- else if (X509_verify(xs,pkey) <= 0)
- {
- ctx->error=X509_V_ERR_CERT_SIGNATURE_FAILURE;
- ctx->current_cert=xs;
- ok=(*cb)(0,ctx);
- if (!ok)
- {
- EVP_PKEY_free(pkey);
- goto end;
- }
- }
- EVP_PKEY_free(pkey);
- pkey=NULL;
- }
-
- xs->valid = 1;
-
- ok = check_cert_time(ctx, xs);
- if (!ok)
- goto end;
-
- /* The last error (if any) is still in the error value */
- ctx->current_issuer=xi;
- ctx->current_cert=xs;
- ok=(*cb)(1,ctx);
- if (!ok) goto end;
-
- n--;
- if (n >= 0)
- {
- xi=xs;
- xs=sk_X509_value(ctx->chain,n);
- }
- }
- ok=1;
-end:
- return ok;
- }
+{
+ int ok = 0, n;
+ X509 *xs, *xi;
+ EVP_PKEY *pkey = NULL;
+ int (*cb) (int xok, X509_STORE_CTX *xctx);
+
+ cb = ctx->verify_cb;
+
+ n = sk_X509_num(ctx->chain);
+ ctx->error_depth = n - 1;
+ n--;
+ xi = sk_X509_value(ctx->chain, n);
+
+ if (ctx->check_issued(ctx, xi, xi))
+ xs = xi;
+ else {
+ if (n <= 0) {
+ ctx->error = X509_V_ERR_UNABLE_TO_VERIFY_LEAF_SIGNATURE;
+ ctx->current_cert = xi;
+ ok = cb(0, ctx);
+ goto end;
+ } else {
+ n--;
+ ctx->error_depth = n;
+ xs = sk_X509_value(ctx->chain, n);
+ }
+ }
+
+/* ctx->error=0; not needed */
+ while (n >= 0) {
+ ctx->error_depth = n;
+
+ /*
+ * Skip signature check for self signed certificates unless
+ * explicitly asked for. It doesn't add any security and just wastes
+ * time.
+ */
+ if (!xs->valid
+ && (xs != xi
+ || (ctx->param->flags & X509_V_FLAG_CHECK_SS_SIGNATURE))) {
+ if ((pkey = X509_get_pubkey(xi)) == NULL) {
+ ctx->error = X509_V_ERR_UNABLE_TO_DECODE_ISSUER_PUBLIC_KEY;
+ ctx->current_cert = xi;
+ ok = (*cb) (0, ctx);
+ if (!ok)
+ goto end;
+ } else if (X509_verify(xs, pkey) <= 0) {
+ ctx->error = X509_V_ERR_CERT_SIGNATURE_FAILURE;
+ ctx->current_cert = xs;
+ ok = (*cb) (0, ctx);
+ if (!ok) {
+ EVP_PKEY_free(pkey);
+ goto end;
+ }
+ }
+ EVP_PKEY_free(pkey);
+ pkey = NULL;
+ }
+
+ xs->valid = 1;
+
+ ok = check_cert_time(ctx, xs);
+ if (!ok)
+ goto end;
+
+ /* The last error (if any) is still in the error value */
+ ctx->current_issuer = xi;
+ ctx->current_cert = xs;
+ ok = (*cb) (1, ctx);
+ if (!ok)
+ goto end;
+
+ n--;
+ if (n >= 0) {
+ xi = xs;
+ xs = sk_X509_value(ctx->chain, n);
+ }
+ }
+ ok = 1;
+ end:
+ return ok;
+}
int X509_cmp_current_time(const ASN1_TIME *ctm)
{
- return X509_cmp_time(ctm, NULL);
+ return X509_cmp_time(ctm, NULL);
}
int X509_cmp_time(const ASN1_TIME *ctm, time_t *cmp_time)
- {
- char *str;
- ASN1_TIME atm;
- long offset;
- char buff1[24],buff2[24],*p;
- int i,j;
-
- p=buff1;
- i=ctm->length;
- str=(char *)ctm->data;
- if (ctm->type == V_ASN1_UTCTIME)
- {
- if ((i < 11) || (i > 17)) return 0;
- memcpy(p,str,10);
- p+=10;
- str+=10;
- }
- else
- {
- if (i < 13) return 0;
- memcpy(p,str,12);
- p+=12;
- str+=12;
- }
-
- if ((*str == 'Z') || (*str == '-') || (*str == '+'))
- { *(p++)='0'; *(p++)='0'; }
- else
- {
- *(p++)= *(str++);
- *(p++)= *(str++);
- /* Skip any fractional seconds... */
- if (*str == '.')
- {
- str++;
- while ((*str >= '0') && (*str <= '9')) str++;
- }
-
- }
- *(p++)='Z';
- *(p++)='\0';
-
- if (*str == 'Z')
- offset=0;
- else
- {
- if ((*str != '+') && (*str != '-'))
- return 0;
- offset=((str[1]-'0')*10+(str[2]-'0'))*60;
- offset+=(str[3]-'0')*10+(str[4]-'0');
- if (*str == '-')
- offset= -offset;
- }
- atm.type=ctm->type;
- atm.flags = 0;
- atm.length=sizeof(buff2);
- atm.data=(unsigned char *)buff2;
-
- if (X509_time_adj(&atm, offset*60, cmp_time) == NULL)
- return 0;
-
- if (ctm->type == V_ASN1_UTCTIME)
- {
- i=(buff1[0]-'0')*10+(buff1[1]-'0');
- if (i < 50) i+=100; /* cf. RFC 2459 */
- j=(buff2[0]-'0')*10+(buff2[1]-'0');
- if (j < 50) j+=100;
-
- if (i < j) return -1;
- if (i > j) return 1;
- }
- i=strcmp(buff1,buff2);
- if (i == 0) /* wait a second then return younger :-) */
- return -1;
- else
- return i;
- }
+{
+ char *str;
+ ASN1_TIME atm;
+ long offset;
+ char buff1[24], buff2[24], *p;
+ int i, j;
+
+ p = buff1;
+ i = ctm->length;
+ str = (char *)ctm->data;
+ if (ctm->type == V_ASN1_UTCTIME) {
+ if ((i < 11) || (i > 17))
+ return 0;
+ memcpy(p, str, 10);
+ p += 10;
+ str += 10;
+ } else {
+ if (i < 13)
+ return 0;
+ memcpy(p, str, 12);
+ p += 12;
+ str += 12;
+ }
+
+ if ((*str == 'Z') || (*str == '-') || (*str == '+')) {
+ *(p++) = '0';
+ *(p++) = '0';
+ } else {
+ *(p++) = *(str++);
+ *(p++) = *(str++);
+ /* Skip any fractional seconds... */
+ if (*str == '.') {
+ str++;
+ while ((*str >= '0') && (*str <= '9'))
+ str++;
+ }
+
+ }
+ *(p++) = 'Z';
+ *(p++) = '\0';
+
+ if (*str == 'Z')
+ offset = 0;
+ else {
+ if ((*str != '+') && (*str != '-'))
+ return 0;
+ offset = ((str[1] - '0') * 10 + (str[2] - '0')) * 60;
+ offset += (str[3] - '0') * 10 + (str[4] - '0');
+ if (*str == '-')
+ offset = -offset;
+ }
+ atm.type = ctm->type;
+ atm.flags = 0;
+ atm.length = sizeof(buff2);
+ atm.data = (unsigned char *)buff2;
+
+ if (X509_time_adj(&atm, offset * 60, cmp_time) == NULL)
+ return 0;
+
+ if (ctm->type == V_ASN1_UTCTIME) {
+ i = (buff1[0] - '0') * 10 + (buff1[1] - '0');
+ if (i < 50)
+ i += 100; /* cf. RFC 2459 */
+ j = (buff2[0] - '0') * 10 + (buff2[1] - '0');
+ if (j < 50)
+ j += 100;
+
+ if (i < j)
+ return -1;
+ if (i > j)
+ return 1;
+ }
+ i = strcmp(buff1, buff2);
+ if (i == 0) /* wait a second then return younger :-) */
+ return -1;
+ else
+ return i;
+}
ASN1_TIME *X509_gmtime_adj(ASN1_TIME *s, long adj)
{
- return X509_time_adj(s, adj, NULL);
+ return X509_time_adj(s, adj, NULL);
}
ASN1_TIME *X509_time_adj(ASN1_TIME *s, long offset_sec, time_t *in_tm)
- {
- return X509_time_adj_ex(s, 0, offset_sec, in_tm);
- }
+{
+ return X509_time_adj_ex(s, 0, offset_sec, in_tm);
+}
ASN1_TIME *X509_time_adj_ex(ASN1_TIME *s,
- int offset_day, long offset_sec, time_t *in_tm)
- {
- time_t t;
-
- if (in_tm) t = *in_tm;
- else time(&t);
-
- if (s && !(s->flags & ASN1_STRING_FLAG_MSTRING))
- {
- if (s->type == V_ASN1_UTCTIME)
- return ASN1_UTCTIME_adj(s,t, offset_day, offset_sec);
- if (s->type == V_ASN1_GENERALIZEDTIME)
- return ASN1_GENERALIZEDTIME_adj(s, t, offset_day,
- offset_sec);
- }
- return ASN1_TIME_adj(s, t, offset_day, offset_sec);
- }
+ int offset_day, long offset_sec, time_t *in_tm)
+{
+ time_t t;
+
+ if (in_tm)
+ t = *in_tm;
+ else
+ time(&t);
+
+ if (s && !(s->flags & ASN1_STRING_FLAG_MSTRING)) {
+ if (s->type == V_ASN1_UTCTIME)
+ return ASN1_UTCTIME_adj(s, t, offset_day, offset_sec);
+ if (s->type == V_ASN1_GENERALIZEDTIME)
+ return ASN1_GENERALIZEDTIME_adj(s, t, offset_day, offset_sec);
+ }
+ return ASN1_TIME_adj(s, t, offset_day, offset_sec);
+}
int X509_get_pubkey_parameters(EVP_PKEY *pkey, STACK_OF(X509) *chain)
- {
- EVP_PKEY *ktmp=NULL,*ktmp2;
- int i,j;
-
- if ((pkey != NULL) && !EVP_PKEY_missing_parameters(pkey)) return 1;
-
- for (i=0; i<sk_X509_num(chain); i++)
- {
- ktmp=X509_get_pubkey(sk_X509_value(chain,i));
- if (ktmp == NULL)
- {
- X509err(X509_F_X509_GET_PUBKEY_PARAMETERS,X509_R_UNABLE_TO_GET_CERTS_PUBLIC_KEY);
- return 0;
- }
- if (!EVP_PKEY_missing_parameters(ktmp))
- break;
- else
- {
- EVP_PKEY_free(ktmp);
- ktmp=NULL;
- }
- }
- if (ktmp == NULL)
- {
- X509err(X509_F_X509_GET_PUBKEY_PARAMETERS,X509_R_UNABLE_TO_FIND_PARAMETERS_IN_CHAIN);
- return 0;
- }
-
- /* first, populate the other certs */
- for (j=i-1; j >= 0; j--)
- {
- ktmp2=X509_get_pubkey(sk_X509_value(chain,j));
- EVP_PKEY_copy_parameters(ktmp2,ktmp);
- EVP_PKEY_free(ktmp2);
- }
-
- if (pkey != NULL) EVP_PKEY_copy_parameters(pkey,ktmp);
- EVP_PKEY_free(ktmp);
- return 1;
- }
-
-int X509_STORE_CTX_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
- CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func)
- {
- /* This function is (usually) called only once, by
- * SSL_get_ex_data_X509_STORE_CTX_idx (ssl/ssl_cert.c). */
- return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_X509_STORE_CTX, argl, argp,
- new_func, dup_func, free_func);
- }
+{
+ EVP_PKEY *ktmp = NULL, *ktmp2;
+ int i, j;
+
+ if ((pkey != NULL) && !EVP_PKEY_missing_parameters(pkey))
+ return 1;
+
+ for (i = 0; i < sk_X509_num(chain); i++) {
+ ktmp = X509_get_pubkey(sk_X509_value(chain, i));
+ if (ktmp == NULL) {
+ X509err(X509_F_X509_GET_PUBKEY_PARAMETERS,
+ X509_R_UNABLE_TO_GET_CERTS_PUBLIC_KEY);
+ return 0;
+ }
+ if (!EVP_PKEY_missing_parameters(ktmp))
+ break;
+ else {
+ EVP_PKEY_free(ktmp);
+ ktmp = NULL;
+ }
+ }
+ if (ktmp == NULL) {
+ X509err(X509_F_X509_GET_PUBKEY_PARAMETERS,
+ X509_R_UNABLE_TO_FIND_PARAMETERS_IN_CHAIN);
+ return 0;
+ }
+
+ /* first, populate the other certs */
+ for (j = i - 1; j >= 0; j--) {
+ ktmp2 = X509_get_pubkey(sk_X509_value(chain, j));
+ EVP_PKEY_copy_parameters(ktmp2, ktmp);
+ EVP_PKEY_free(ktmp2);
+ }
+
+ if (pkey != NULL)
+ EVP_PKEY_copy_parameters(pkey, ktmp);
+ EVP_PKEY_free(ktmp);
+ return 1;
+}
+
+int X509_STORE_CTX_get_ex_new_index(long argl, void *argp,
+ CRYPTO_EX_new *new_func,
+ CRYPTO_EX_dup *dup_func,
+ CRYPTO_EX_free *free_func)
+{
+ /*
+ * This function is (usually) called only once, by
+ * SSL_get_ex_data_X509_STORE_CTX_idx (ssl/ssl_cert.c).
+ */
+ return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_X509_STORE_CTX, argl, argp,
+ new_func, dup_func, free_func);
+}
int X509_STORE_CTX_set_ex_data(X509_STORE_CTX *ctx, int idx, void *data)
- {
- return CRYPTO_set_ex_data(&ctx->ex_data,idx,data);
- }
+{
+ return CRYPTO_set_ex_data(&ctx->ex_data, idx, data);
+}
void *X509_STORE_CTX_get_ex_data(X509_STORE_CTX *ctx, int idx)
- {
- return CRYPTO_get_ex_data(&ctx->ex_data,idx);
- }
+{
+ return CRYPTO_get_ex_data(&ctx->ex_data, idx);
+}
int X509_STORE_CTX_get_error(X509_STORE_CTX *ctx)
- {
- return ctx->error;
- }
+{
+ return ctx->error;
+}
void X509_STORE_CTX_set_error(X509_STORE_CTX *ctx, int err)
- {
- ctx->error=err;
- }
+{
+ ctx->error = err;
+}
int X509_STORE_CTX_get_error_depth(X509_STORE_CTX *ctx)
- {
- return ctx->error_depth;
- }
+{
+ return ctx->error_depth;
+}
X509 *X509_STORE_CTX_get_current_cert(X509_STORE_CTX *ctx)
- {
- return ctx->current_cert;
- }
+{
+ return ctx->current_cert;
+}
STACK_OF(X509) *X509_STORE_CTX_get_chain(X509_STORE_CTX *ctx)
- {
- return ctx->chain;
- }
+{
+ return ctx->chain;
+}
STACK_OF(X509) *X509_STORE_CTX_get1_chain(X509_STORE_CTX *ctx)
- {
- int i;
- X509 *x;
- STACK_OF(X509) *chain;
- if (!ctx->chain || !(chain = sk_X509_dup(ctx->chain))) return NULL;
- for (i = 0; i < sk_X509_num(chain); i++)
- {
- x = sk_X509_value(chain, i);
- CRYPTO_add(&x->references, 1, CRYPTO_LOCK_X509);
- }
- return chain;
- }
+{
+ int i;
+ X509 *x;
+ STACK_OF(X509) *chain;
+ if (!ctx->chain || !(chain = sk_X509_dup(ctx->chain)))
+ return NULL;
+ for (i = 0; i < sk_X509_num(chain); i++) {
+ x = sk_X509_value(chain, i);
+ CRYPTO_add(&x->references, 1, CRYPTO_LOCK_X509);
+ }
+ return chain;
+}
X509 *X509_STORE_CTX_get0_current_issuer(X509_STORE_CTX *ctx)
- {
- return ctx->current_issuer;
- }
+{
+ return ctx->current_issuer;
+}
X509_CRL *X509_STORE_CTX_get0_current_crl(X509_STORE_CTX *ctx)
- {
- return ctx->current_crl;
- }
+{
+ return ctx->current_crl;
+}
X509_STORE_CTX *X509_STORE_CTX_get0_parent_ctx(X509_STORE_CTX *ctx)
- {
- return ctx->parent;
- }
+{
+ return ctx->parent;
+}
void X509_STORE_CTX_set_cert(X509_STORE_CTX *ctx, X509 *x)
- {
- ctx->cert=x;
- }
+{
+ ctx->cert = x;
+}
void X509_STORE_CTX_set_chain(X509_STORE_CTX *ctx, STACK_OF(X509) *sk)
- {
- ctx->untrusted=sk;
- }
+{
+ ctx->untrusted = sk;
+}
void X509_STORE_CTX_set0_crls(X509_STORE_CTX *ctx, STACK_OF(X509_CRL) *sk)
- {
- ctx->crls=sk;
- }
+{
+ ctx->crls = sk;
+}
int X509_STORE_CTX_set_purpose(X509_STORE_CTX *ctx, int purpose)
- {
- return X509_STORE_CTX_purpose_inherit(ctx, 0, purpose, 0);
- }
+{
+ return X509_STORE_CTX_purpose_inherit(ctx, 0, purpose, 0);
+}
int X509_STORE_CTX_set_trust(X509_STORE_CTX *ctx, int trust)
- {
- return X509_STORE_CTX_purpose_inherit(ctx, 0, 0, trust);
- }
-
-/* This function is used to set the X509_STORE_CTX purpose and trust
- * values. This is intended to be used when another structure has its
- * own trust and purpose values which (if set) will be inherited by
- * the ctx. If they aren't set then we will usually have a default
- * purpose in mind which should then be used to set the trust value.
- * An example of this is SSL use: an SSL structure will have its own
- * purpose and trust settings which the application can set: if they
- * aren't set then we use the default of SSL client/server.
+{
+ return X509_STORE_CTX_purpose_inherit(ctx, 0, 0, trust);
+}
+
+/*
+ * This function is used to set the X509_STORE_CTX purpose and trust values.
+ * This is intended to be used when another structure has its own trust and
+ * purpose values which (if set) will be inherited by the ctx. If they aren't
+ * set then we will usually have a default purpose in mind which should then
+ * be used to set the trust value. An example of this is SSL use: an SSL
+ * structure will have its own purpose and trust settings which the
+ * application can set: if they aren't set then we use the default of SSL
+ * client/server.
*/
int X509_STORE_CTX_purpose_inherit(X509_STORE_CTX *ctx, int def_purpose,
- int purpose, int trust)
-{
- int idx;
- /* If purpose not set use default */
- if (!purpose) purpose = def_purpose;
- /* If we have a purpose then check it is valid */
- if (purpose)
- {
- X509_PURPOSE *ptmp;
- idx = X509_PURPOSE_get_by_id(purpose);
- if (idx == -1)
- {
- X509err(X509_F_X509_STORE_CTX_PURPOSE_INHERIT,
- X509_R_UNKNOWN_PURPOSE_ID);
- return 0;
- }
- ptmp = X509_PURPOSE_get0(idx);
- if (ptmp->trust == X509_TRUST_DEFAULT)
- {
- idx = X509_PURPOSE_get_by_id(def_purpose);
- if (idx == -1)
- {
- X509err(X509_F_X509_STORE_CTX_PURPOSE_INHERIT,
- X509_R_UNKNOWN_PURPOSE_ID);
- return 0;
- }
- ptmp = X509_PURPOSE_get0(idx);
- }
- /* If trust not set then get from purpose default */
- if (!trust) trust = ptmp->trust;
- }
- if (trust)
- {
- idx = X509_TRUST_get_by_id(trust);
- if (idx == -1)
- {
- X509err(X509_F_X509_STORE_CTX_PURPOSE_INHERIT,
- X509_R_UNKNOWN_TRUST_ID);
- return 0;
- }
- }
-
- if (purpose && !ctx->param->purpose) ctx->param->purpose = purpose;
- if (trust && !ctx->param->trust) ctx->param->trust = trust;
- return 1;
+ int purpose, int trust)
+{
+ int idx;
+ /* If purpose not set use default */
+ if (!purpose)
+ purpose = def_purpose;
+ /* If we have a purpose then check it is valid */
+ if (purpose) {
+ X509_PURPOSE *ptmp;
+ idx = X509_PURPOSE_get_by_id(purpose);
+ if (idx == -1) {
+ X509err(X509_F_X509_STORE_CTX_PURPOSE_INHERIT,
+ X509_R_UNKNOWN_PURPOSE_ID);
+ return 0;
+ }
+ ptmp = X509_PURPOSE_get0(idx);
+ if (ptmp->trust == X509_TRUST_DEFAULT) {
+ idx = X509_PURPOSE_get_by_id(def_purpose);
+ if (idx == -1) {
+ X509err(X509_F_X509_STORE_CTX_PURPOSE_INHERIT,
+ X509_R_UNKNOWN_PURPOSE_ID);
+ return 0;
+ }
+ ptmp = X509_PURPOSE_get0(idx);
+ }
+ /* If trust not set then get from purpose default */
+ if (!trust)
+ trust = ptmp->trust;
+ }
+ if (trust) {
+ idx = X509_TRUST_get_by_id(trust);
+ if (idx == -1) {
+ X509err(X509_F_X509_STORE_CTX_PURPOSE_INHERIT,
+ X509_R_UNKNOWN_TRUST_ID);
+ return 0;
+ }
+ }
+
+ if (purpose && !ctx->param->purpose)
+ ctx->param->purpose = purpose;
+ if (trust && !ctx->param->trust)
+ ctx->param->trust = trust;
+ return 1;
}
X509_STORE_CTX *X509_STORE_CTX_new(void)
{
- X509_STORE_CTX *ctx;
- ctx = (X509_STORE_CTX *)OPENSSL_malloc(sizeof(X509_STORE_CTX));
- if (!ctx)
- {
- X509err(X509_F_X509_STORE_CTX_NEW,ERR_R_MALLOC_FAILURE);
- return NULL;
- }
- memset(ctx, 0, sizeof(X509_STORE_CTX));
- return ctx;
+ X509_STORE_CTX *ctx;
+ ctx = (X509_STORE_CTX *)OPENSSL_malloc(sizeof(X509_STORE_CTX));
+ if (!ctx) {
+ X509err(X509_F_X509_STORE_CTX_NEW, ERR_R_MALLOC_FAILURE);
+ return NULL;
+ }
+ memset(ctx, 0, sizeof(X509_STORE_CTX));
+ return ctx;
}
void X509_STORE_CTX_free(X509_STORE_CTX *ctx)
{
- X509_STORE_CTX_cleanup(ctx);
- OPENSSL_free(ctx);
+ X509_STORE_CTX_cleanup(ctx);
+ OPENSSL_free(ctx);
}
int X509_STORE_CTX_init(X509_STORE_CTX *ctx, X509_STORE *store, X509 *x509,
- STACK_OF(X509) *chain)
- {
- int ret = 1;
- ctx->ctx=store;
- ctx->current_method=0;
- ctx->cert=x509;
- ctx->untrusted=chain;
- ctx->crls = NULL;
- ctx->last_untrusted=0;
- ctx->other_ctx=NULL;
- ctx->valid=0;
- ctx->chain=NULL;
- ctx->error=0;
- ctx->explicit_policy=0;
- ctx->error_depth=0;
- ctx->current_cert=NULL;
- ctx->current_issuer=NULL;
- ctx->current_crl=NULL;
- ctx->current_crl_score=0;
- ctx->current_reasons=0;
- ctx->tree = NULL;
- ctx->parent = NULL;
-
- ctx->param = X509_VERIFY_PARAM_new();
-
- if (!ctx->param)
- {
- X509err(X509_F_X509_STORE_CTX_INIT,ERR_R_MALLOC_FAILURE);
- return 0;
- }
-
- /* Inherit callbacks and flags from X509_STORE if not set
- * use defaults.
- */
-
-
- if (store)
- ret = X509_VERIFY_PARAM_inherit(ctx->param, store->param);
- else
- ctx->param->inh_flags |= X509_VP_FLAG_DEFAULT|X509_VP_FLAG_ONCE;
-
- if (store)
- {
- ctx->verify_cb = store->verify_cb;
- ctx->cleanup = store->cleanup;
- }
- else
- ctx->cleanup = 0;
-
- if (ret)
- ret = X509_VERIFY_PARAM_inherit(ctx->param,
- X509_VERIFY_PARAM_lookup("default"));
-
- if (ret == 0)
- {
- X509err(X509_F_X509_STORE_CTX_INIT,ERR_R_MALLOC_FAILURE);
- return 0;
- }
-
- if (store && store->check_issued)
- ctx->check_issued = store->check_issued;
- else
- ctx->check_issued = check_issued;
-
- if (store && store->get_issuer)
- ctx->get_issuer = store->get_issuer;
- else
- ctx->get_issuer = X509_STORE_CTX_get1_issuer;
-
- if (store && store->verify_cb)
- ctx->verify_cb = store->verify_cb;
- else
- ctx->verify_cb = null_callback;
-
- if (store && store->verify)
- ctx->verify = store->verify;
- else
- ctx->verify = internal_verify;
-
- if (store && store->check_revocation)
- ctx->check_revocation = store->check_revocation;
- else
- ctx->check_revocation = check_revocation;
-
- if (store && store->get_crl)
- ctx->get_crl = store->get_crl;
- else
- ctx->get_crl = NULL;
-
- if (store && store->check_crl)
- ctx->check_crl = store->check_crl;
- else
- ctx->check_crl = check_crl;
-
- if (store && store->cert_crl)
- ctx->cert_crl = store->cert_crl;
- else
- ctx->cert_crl = cert_crl;
-
- if (store && store->lookup_certs)
- ctx->lookup_certs = store->lookup_certs;
- else
- ctx->lookup_certs = X509_STORE_get1_certs;
-
- if (store && store->lookup_crls)
- ctx->lookup_crls = store->lookup_crls;
- else
- ctx->lookup_crls = X509_STORE_get1_crls;
-
- ctx->check_policy = check_policy;
-
-
- /* This memset() can't make any sense anyway, so it's removed. As
- * X509_STORE_CTX_cleanup does a proper "free" on the ex_data, we put a
- * corresponding "new" here and remove this bogus initialisation. */
- /* memset(&(ctx->ex_data),0,sizeof(CRYPTO_EX_DATA)); */
- if(!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_X509_STORE_CTX, ctx,
- &(ctx->ex_data)))
- {
- OPENSSL_free(ctx);
- X509err(X509_F_X509_STORE_CTX_INIT,ERR_R_MALLOC_FAILURE);
- return 0;
- }
- return 1;
- }
-
-/* Set alternative lookup method: just a STACK of trusted certificates.
- * This avoids X509_STORE nastiness where it isn't needed.
+ STACK_OF(X509) *chain)
+{
+ int ret = 1;
+ ctx->ctx = store;
+ ctx->current_method = 0;
+ ctx->cert = x509;
+ ctx->untrusted = chain;
+ ctx->crls = NULL;
+ ctx->last_untrusted = 0;
+ ctx->other_ctx = NULL;
+ ctx->valid = 0;
+ ctx->chain = NULL;
+ ctx->error = 0;
+ ctx->explicit_policy = 0;
+ ctx->error_depth = 0;
+ ctx->current_cert = NULL;
+ ctx->current_issuer = NULL;
+ ctx->current_crl = NULL;
+ ctx->current_crl_score = 0;
+ ctx->current_reasons = 0;
+ ctx->tree = NULL;
+ ctx->parent = NULL;
+
+ ctx->param = X509_VERIFY_PARAM_new();
+
+ if (!ctx->param) {
+ X509err(X509_F_X509_STORE_CTX_INIT, ERR_R_MALLOC_FAILURE);
+ return 0;
+ }
+
+ /*
+ * Inherit callbacks and flags from X509_STORE if not set use defaults.
+ */
+
+ if (store)
+ ret = X509_VERIFY_PARAM_inherit(ctx->param, store->param);
+ else
+ ctx->param->inh_flags |= X509_VP_FLAG_DEFAULT | X509_VP_FLAG_ONCE;
+
+ if (store) {
+ ctx->verify_cb = store->verify_cb;
+ ctx->cleanup = store->cleanup;
+ } else
+ ctx->cleanup = 0;
+
+ if (ret)
+ ret = X509_VERIFY_PARAM_inherit(ctx->param,
+ X509_VERIFY_PARAM_lookup("default"));
+
+ if (ret == 0) {
+ X509err(X509_F_X509_STORE_CTX_INIT, ERR_R_MALLOC_FAILURE);
+ return 0;
+ }
+
+ if (store && store->check_issued)
+ ctx->check_issued = store->check_issued;
+ else
+ ctx->check_issued = check_issued;
+
+ if (store && store->get_issuer)
+ ctx->get_issuer = store->get_issuer;
+ else
+ ctx->get_issuer = X509_STORE_CTX_get1_issuer;
+
+ if (store && store->verify_cb)
+ ctx->verify_cb = store->verify_cb;
+ else
+ ctx->verify_cb = null_callback;
+
+ if (store && store->verify)
+ ctx->verify = store->verify;
+ else
+ ctx->verify = internal_verify;
+
+ if (store && store->check_revocation)
+ ctx->check_revocation = store->check_revocation;
+ else
+ ctx->check_revocation = check_revocation;
+
+ if (store && store->get_crl)
+ ctx->get_crl = store->get_crl;
+ else
+ ctx->get_crl = NULL;
+
+ if (store && store->check_crl)
+ ctx->check_crl = store->check_crl;
+ else
+ ctx->check_crl = check_crl;
+
+ if (store && store->cert_crl)
+ ctx->cert_crl = store->cert_crl;
+ else
+ ctx->cert_crl = cert_crl;
+
+ if (store && store->lookup_certs)
+ ctx->lookup_certs = store->lookup_certs;
+ else
+ ctx->lookup_certs = X509_STORE_get1_certs;
+
+ if (store && store->lookup_crls)
+ ctx->lookup_crls = store->lookup_crls;
+ else
+ ctx->lookup_crls = X509_STORE_get1_crls;
+
+ ctx->check_policy = check_policy;
+
+ /*
+ * This memset() can't make any sense anyway, so it's removed. As
+ * X509_STORE_CTX_cleanup does a proper "free" on the ex_data, we put a
+ * corresponding "new" here and remove this bogus initialisation.
+ */
+ /* memset(&(ctx->ex_data),0,sizeof(CRYPTO_EX_DATA)); */
+ if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_X509_STORE_CTX, ctx,
+ &(ctx->ex_data))) {
+ OPENSSL_free(ctx);
+ X509err(X509_F_X509_STORE_CTX_INIT, ERR_R_MALLOC_FAILURE);
+ return 0;
+ }
+ return 1;
+}
+
+/*
+ * Set alternative lookup method: just a STACK of trusted certificates. This
+ * avoids X509_STORE nastiness where it isn't needed.
*/
void X509_STORE_CTX_trusted_stack(X509_STORE_CTX *ctx, STACK_OF(X509) *sk)
{
- ctx->other_ctx = sk;
- ctx->get_issuer = get_issuer_sk;
+ ctx->other_ctx = sk;
+ ctx->get_issuer = get_issuer_sk;
}
void X509_STORE_CTX_cleanup(X509_STORE_CTX *ctx)
- {
- if (ctx->cleanup) ctx->cleanup(ctx);
- if (ctx->param != NULL)
- {
- if (ctx->parent == NULL)
- X509_VERIFY_PARAM_free(ctx->param);
- ctx->param=NULL;
- }
- if (ctx->tree != NULL)
- {
- X509_policy_tree_free(ctx->tree);
- ctx->tree=NULL;
- }
- if (ctx->chain != NULL)
- {
- sk_X509_pop_free(ctx->chain,X509_free);
- ctx->chain=NULL;
- }
- CRYPTO_free_ex_data(CRYPTO_EX_INDEX_X509_STORE_CTX, ctx, &(ctx->ex_data));
- memset(&ctx->ex_data,0,sizeof(CRYPTO_EX_DATA));
- }
+{
+ if (ctx->cleanup)
+ ctx->cleanup(ctx);
+ if (ctx->param != NULL) {
+ if (ctx->parent == NULL)
+ X509_VERIFY_PARAM_free(ctx->param);
+ ctx->param = NULL;
+ }
+ if (ctx->tree != NULL) {
+ X509_policy_tree_free(ctx->tree);
+ ctx->tree = NULL;
+ }
+ if (ctx->chain != NULL) {
+ sk_X509_pop_free(ctx->chain, X509_free);
+ ctx->chain = NULL;
+ }
+ CRYPTO_free_ex_data(CRYPTO_EX_INDEX_X509_STORE_CTX, ctx, &(ctx->ex_data));
+ memset(&ctx->ex_data, 0, sizeof(CRYPTO_EX_DATA));
+}
void X509_STORE_CTX_set_depth(X509_STORE_CTX *ctx, int depth)
- {
- X509_VERIFY_PARAM_set_depth(ctx->param, depth);
- }
+{
+ X509_VERIFY_PARAM_set_depth(ctx->param, depth);
+}
void X509_STORE_CTX_set_flags(X509_STORE_CTX *ctx, unsigned long flags)
- {
- X509_VERIFY_PARAM_set_flags(ctx->param, flags);
- }
+{
+ X509_VERIFY_PARAM_set_flags(ctx->param, flags);
+}
-void X509_STORE_CTX_set_time(X509_STORE_CTX *ctx, unsigned long flags, time_t t)
- {
- X509_VERIFY_PARAM_set_time(ctx->param, t);
- }
+void X509_STORE_CTX_set_time(X509_STORE_CTX *ctx, unsigned long flags,
+ time_t t)
+{
+ X509_VERIFY_PARAM_set_time(ctx->param, t);
+}
void X509_STORE_CTX_set_verify_cb(X509_STORE_CTX *ctx,
- int (*verify_cb)(int, X509_STORE_CTX *))
- {
- ctx->verify_cb=verify_cb;
- }
+ int (*verify_cb) (int, X509_STORE_CTX *))
+{
+ ctx->verify_cb = verify_cb;
+}
X509_POLICY_TREE *X509_STORE_CTX_get0_policy_tree(X509_STORE_CTX *ctx)
- {
- return ctx->tree;
- }
+{
+ return ctx->tree;
+}
int X509_STORE_CTX_get_explicit_policy(X509_STORE_CTX *ctx)
- {
- return ctx->explicit_policy;
- }
+{
+ return ctx->explicit_policy;
+}
int X509_STORE_CTX_set_default(X509_STORE_CTX *ctx, const char *name)
- {
- const X509_VERIFY_PARAM *param;
- param = X509_VERIFY_PARAM_lookup(name);
- if (!param)
- return 0;
- return X509_VERIFY_PARAM_inherit(ctx->param, param);
- }
+{
+ const X509_VERIFY_PARAM *param;
+ param = X509_VERIFY_PARAM_lookup(name);
+ if (!param)
+ return 0;
+ return X509_VERIFY_PARAM_inherit(ctx->param, param);
+}
X509_VERIFY_PARAM *X509_STORE_CTX_get0_param(X509_STORE_CTX *ctx)
- {
- return ctx->param;
- }
+{
+ return ctx->param;
+}
void X509_STORE_CTX_set0_param(X509_STORE_CTX *ctx, X509_VERIFY_PARAM *param)
- {
- if (ctx->param)
- X509_VERIFY_PARAM_free(ctx->param);
- ctx->param = param;
- }
+{
+ if (ctx->param)
+ X509_VERIFY_PARAM_free(ctx->param);
+ ctx->param = param;
+}
IMPLEMENT_STACK_OF(X509)
+
IMPLEMENT_ASN1_SET_OF(X509)
IMPLEMENT_STACK_OF(X509_NAME)
IMPLEMENT_STACK_OF(X509_ATTRIBUTE)
+
IMPLEMENT_ASN1_SET_OF(X509_ATTRIBUTE)