#include <openssl/x509v3.h>
#include <openssl/objects.h>
+/* CRL score values */
+
+/* No unhandled critical extensions */
+
+#define CRL_SCORE_NOCRITICAL 0x100
+
+/* certificate is within CRL scope */
+
+#define CRL_SCORE_SCOPE 0x080
+
+/* CRL times valid */
+
+#define CRL_SCORE_TIME 0x040
+
+/* Issuer name matches certificate */
+
+#define CRL_SCORE_ISSUER_NAME 0x020
+
+/* If this score or above CRL is probably valid */
+
+#define CRL_SCORE_VALID (CRL_SCORE_NOCRITICAL|CRL_SCORE_TIME|CRL_SCORE_SCOPE)
+
+/* CRL issuer is certificate issuer */
+
+#define CRL_SCORE_ISSUER_CERT 0x018
+
+/* CRL issuer is on certificate path */
+
+#define CRL_SCORE_SAME_PATH 0x008
+
+/* CRL issuer matches CRL AKID */
+
+#define CRL_SCORE_AKID 0x004
+
+/* Have a delta CRL with valid times */
+
+#define CRL_SCORE_TIME_DELTA 0x002
+
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_purpose(X509_STORE_CTX *ctx);
+static int check_chain_extensions(X509_STORE_CTX *ctx);
+static int check_name_constraints(X509_STORE_CTX *ctx);
static int check_trust(X509_STORE_CTX *ctx);
static int check_revocation(X509_STORE_CTX *ctx);
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);
+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);
+static int crl_crldp_check(X509 *x, X509_CRL *crl, int crl_score,
+ 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);
+
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)
int X509_verify_cert(X509_STORE_CTX *ctx)
{
X509 *x,*xtmp,*chain_ss=NULL;
- X509_NAME *xn;
+ int bad_chain = 0;
+ X509_VERIFY_PARAM *param = ctx->param;
int depth,i,ok=0;
int num;
- int (*cb)();
+ 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);
num=sk_X509_num(ctx->chain);
x=sk_X509_value(ctx->chain,num-1);
- depth=ctx->depth;
+ depth=param->depth;
for (;;)
*/
/* If we are self signed, we break */
- xn=X509_get_issuer_name(x);
if (ctx->check_issued(ctx, x,x)) break;
/* If we were passed a cert chain, use it first */
goto end;
}
CRYPTO_add(&xtmp->references,1,CRYPTO_LOCK_X509);
- sk_X509_delete_ptr(sktmp,xtmp);
+ (void)sk_X509_delete_ptr(sktmp,xtmp);
ctx->last_untrusted++;
x=xtmp;
num++;
i=sk_X509_num(ctx->chain);
x=sk_X509_value(ctx->chain,i-1);
- xn = X509_get_subject_name(x);
if (ctx->check_issued(ctx, x, x))
{
/* we have a self signed certificate */
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;
}
*/
X509_free(x);
x = xtmp;
- sk_X509_set(ctx->chain, i - 1, x);
+ (void)sk_X509_set(ctx->chain, i - 1, x);
ctx->last_untrusted=0;
}
}
if (depth < num) break;
/* If we are self signed, we break */
- xn=X509_get_issuer_name(x);
if (ctx->check_issued(ctx,x,x)) break;
ok = ctx->get_issuer(&xtmp, ctx, x);
}
/* we now have our chain, lets check it... */
- xn=X509_get_issuer_name(x);
/* Is last certificate looked up self signed? */
if (!ctx->check_issued(ctx,x,x))
}
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 */
- if (ctx->purpose > 0) ok = check_chain_purpose(ctx);
+ 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 (ctx->trust > 0) ok = check_trust(ctx);
+ if (param->trust > 0) ok = check_trust(ctx);
if (!ok) goto end;
ok = ctx->check_revocation(ctx);
if(!ok) goto end;
- /* At this point, we have a chain and just need to verify it */
+ /* 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;
+#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:
if (ret == X509_V_OK)
return 1;
/* If we haven't asked for issuer errors don't set ctx */
- if (!(ctx->flags & X509_V_FLAG_CB_ISSUER_CHECK))
+ if (!(ctx->param->flags & X509_V_FLAG_CB_ISSUER_CHECK))
return 0;
ctx->error = ret;
* with the supplied purpose
*/
-static int check_chain_purpose(X509_STORE_CTX *ctx)
+static int check_chain_extensions(X509_STORE_CTX *ctx)
{
#ifdef OPENSSL_NO_CHAIN_VERIFY
return 1;
#else
- int i, ok=0;
+ int i, ok=0, must_be_ca, plen = 0;
X509 *x;
- int (*cb)();
+ 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->flags & X509_V_FLAG_IGNORE_CRITICAL)
+ if (!(ctx->param->flags & X509_V_FLAG_IGNORE_CRITICAL)
&& (x->ex_flags & EXFLAG_CRITICAL))
{
ctx->error = X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION;
ok=cb(0,ctx);
if (!ok) goto end;
}
- if (!X509_check_purpose(x, ctx->purpose, i))
+ 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)
{
- if (i)
+ 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
- ctx->error = X509_V_ERR_INVALID_PURPOSE;
+ 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;
}
- /* Check pathlen */
- if ((i > 1) && (x->ex_pathlen != -1)
- && (i > (x->ex_pathlen + 1)))
+ 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;
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:
#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;
+ }
+
static int check_trust(X509_STORE_CTX *ctx)
{
#ifdef OPENSSL_NO_CHAIN_VERIFY
#else
int i, ok;
X509 *x;
- int (*cb)();
+ 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->trust, 0);
+ ok = X509_check_trust(x, ctx->param->trust, 0);
if (ok == X509_TRUST_TRUSTED)
return 1;
ctx->error_depth = i;
static int check_revocation(X509_STORE_CTX *ctx)
{
int i, last, ok;
- if (!(ctx->flags & X509_V_FLAG_CRL_CHECK))
+ if (!(ctx->param->flags & X509_V_FLAG_CRL_CHECK))
return 1;
- if (ctx->flags & X509_V_FLAG_CRL_CHECK_ALL)
- last = 0;
- else
+ 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;
+ 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;
+ 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)
+ {
+ /* 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;
+ }
+ 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;
+ }
+
+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
+ * 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, 0);
+ 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, 0);
+
+ if (i >= 0)
+ {
+
+ 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 1;
+
+ if (!exta || !extb)
+ return 0;
+
+
+ if (ASN1_OCTET_STRING_cmp(exta, extb))
+ return 0;
+
+ 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...
+ */
+
+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.
+ */
+
+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;
+
+ }
+
+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_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.
+ */
+
+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
+ */
+
+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.
+ * 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;
+
+ }
+
+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 1;
+ return 0;
}
-static int check_cert(X509_STORE_CTX *ctx)
+/* Check CRLDP and IDP */
+
+static int crl_crldp_check(X509 *x, X509_CRL *crl, int crl_score,
+ unsigned int *preasons)
{
- X509_CRL *crl = NULL;
- X509 *x;
- int ok, cnum;
- cnum = ctx->error_depth;
- x = sk_X509_value(ctx->chain, cnum);
- ctx->current_cert = x;
- /* Try to retrieve relevant CRL */
- ok = ctx->get_crl(ctx, &crl, x);
- /* If error looking up CRL, nothing we can do except
- * notify callback
- */
- if(!ok)
+ int i;
+ if (crl->idp_flags & IDP_ONLYATTR)
+ return 0;
+ if (x->ex_flags & EXFLAG_CA)
{
- ctx->error = X509_V_ERR_UNABLE_TO_GET_CRL;
- ok = ctx->verify_cb(0, ctx);
- goto err;
+ if (crl->idp_flags & IDP_ONLYUSER)
+ return 0;
}
- ctx->current_crl = crl;
- ok = ctx->check_crl(ctx, crl);
- if (!ok) goto err;
- ok = ctx->cert_crl(ctx, crl, x);
- err:
- ctx->current_crl = NULL;
- X509_CRL_free(crl);
- return ok;
-
+ 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 certificate: currently just a
- * subject lookup: maybe use AKID later...
- * Also might look up any included CRLs too (e.g PKCS#7 signedData).
+/* Retrieve CRL corresponding to current certificate.
+ * If deltas enabled try to find a delta CRL too
*/
-static int get_crl(X509_STORE_CTX *ctx, X509_CRL **crl, X509 *x)
+
+static int get_crl_delta(X509_STORE_CTX *ctx,
+ X509_CRL **pcrl, X509_CRL **pdcrl, X509 *x)
{
int ok;
- X509_OBJECT xobj;
- ok = X509_STORE_get_by_subject(ctx, X509_LU_CRL, X509_get_issuer_name(x), &xobj);
- if (!ok) return 0;
- *crl = xobj.data.crl;
- return 1;
+ 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 */
{
X509 *issuer = NULL;
EVP_PKEY *ikey = NULL;
- int ok = 0, chnum, cnum, i;
- time_t *ptime;
+ int ok = 0, chnum, cnum;
cnum = ctx->error_depth;
chnum = sk_X509_num(ctx->chain) - 1;
- /* Find CRL issuer: if not last certificate then issuer
+ /* 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.
*/
- if(cnum < chnum)
+ else if (cnum < chnum)
issuer = sk_X509_value(ctx->chain, cnum + 1);
else
{
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);
}
}
- /* OK, CRL signature valid check times */
- if (ctx->flags & X509_V_FLAG_USE_CHECK_TIME)
- ptime = &ctx->check_time;
- else
- ptime = NULL;
+ ok = 1;
- i=X509_cmp_time(X509_CRL_get_lastUpdate(crl), ptime);
- if (i == 0)
+ 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 (crl->flags & EXFLAG_CRITICAL)
{
- ctx->error=X509_V_ERR_ERROR_IN_CRL_LAST_UPDATE_FIELD;
+ if (ctx->param->flags & X509_V_FLAG_IGNORE_CRITICAL)
+ return 1;
+ ctx->error = X509_V_ERR_UNHANDLED_CRITICAL_CRL_EXTENSION;
ok = ctx->verify_cb(0, ctx);
- if (!ok) goto err;
+ if(!ok)
+ return 0;
}
-
- if (i > 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))
{
- ctx->error=X509_V_ERR_CRL_NOT_YET_VALID;
+ 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) goto err;
+ if (!ok)
+ return 0;
}
- if(X509_CRL_get_nextUpdate(crl))
- {
- i=X509_cmp_time(X509_CRL_get_nextUpdate(crl), ptime);
-
- if (i == 0)
- {
- ctx->error=X509_V_ERR_ERROR_IN_CRL_NEXT_UPDATE_FIELD;
- ok = ctx->verify_cb(0, ctx);
- if (!ok) goto err;
- }
+ return 1;
+ }
- if (i < 0)
+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++)
{
- ctx->error=X509_V_ERR_CRL_HAS_EXPIRED;
- ok = ctx->verify_cb(0, ctx);
- if (!ok) goto err;
+ 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);
}
- ok = 1;
+ 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;
+ }
- err:
- EVP_PKEY_free(ikey);
- return ok;
+ return 1;
}
-/* Check certificate against CRL */
-static int cert_crl(X509_STORE_CTX *ctx, X509_CRL *crl, X509 *x)
+static int check_cert_time(X509_STORE_CTX *ctx, X509 *x)
{
- int idx, ok;
- X509_REVOKED rtmp;
- /* Look for serial number of certificate in CRL */
- rtmp.serialNumber = X509_get_serialNumber(x);
- idx = sk_X509_REVOKED_find(crl->crl->revoked, &rtmp);
- /* Not found: OK */
- if(idx == -1) return 1;
- /* Otherwise revoked: want something cleverer than
- * this to handle entry extensions in V2 CRLs.
- */
- ctx->error = X509_V_ERR_CERT_REVOKED;
- ok = ctx->verify_cb(0, ctx);
- return ok;
+ 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 i,ok=0,n;
+ int ok=0,n;
X509 *xs,*xi;
EVP_PKEY *pkey=NULL;
- time_t *ptime;
- int (*cb)();
+ int (*cb)(int xok,X509_STORE_CTX *xctx);
cb=ctx->verify_cb;
ctx->error_depth=n-1;
n--;
xi=sk_X509_value(ctx->chain,n);
- if (ctx->flags & X509_V_FLAG_USE_CHECK_TIME)
- ptime = &ctx->check_time;
- else
- ptime = NULL;
+
if (ctx->check_issued(ctx, xi, xi))
xs=xi;
else
while (n >= 0)
{
ctx->error_depth=n;
- if (!xs->valid)
+
+ /* 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)
{
ok=(*cb)(0,ctx);
if (!ok) goto end;
}
- if (X509_verify(xs,pkey) <= 0)
- /* XXX For the final trusted self-signed cert,
- * this is a waste of time. That check should
- * optional so that e.g. 'openssl x509' can be
- * used to detect invalid self-signatures, but
- * we don't verify again and again in SSL
- * handshakes and the like once the cert has
- * been declared trusted. */
+ else if (X509_verify(xs,pkey) <= 0)
{
ctx->error=X509_V_ERR_CERT_SIGNATURE_FAILURE;
ctx->current_cert=xs;
}
EVP_PKEY_free(pkey);
pkey=NULL;
-
- i=X509_cmp_time(X509_get_notBefore(xs), ptime);
- if (i == 0)
- {
- ctx->error=X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD;
- ctx->current_cert=xs;
- ok=(*cb)(0,ctx);
- if (!ok) goto end;
- }
- if (i > 0)
- {
- ctx->error=X509_V_ERR_CERT_NOT_YET_VALID;
- ctx->current_cert=xs;
- ok=(*cb)(0,ctx);
- if (!ok) goto end;
- }
- xs->valid=1;
}
- i=X509_cmp_time(X509_get_notAfter(xs), ptime);
- if (i == 0)
- {
- ctx->error=X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD;
- ctx->current_cert=xs;
- ok=(*cb)(0,ctx);
- if (!ok) goto end;
- }
+ xs->valid = 1;
- if (i < 0)
- {
- ctx->error=X509_V_ERR_CERT_HAS_EXPIRED;
- ctx->current_cert=xs;
- ok=(*cb)(0,ctx);
- if (!ok) goto end;
- }
+ 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;
return ok;
}
-int X509_cmp_current_time(ASN1_TIME *ctm)
+int X509_cmp_current_time(const ASN1_TIME *ctm)
{
return X509_cmp_time(ctm, NULL);
}
-int X509_cmp_time(ASN1_TIME *ctm, time_t *cmp_time)
+int X509_cmp_time(const ASN1_TIME *ctm, time_t *cmp_time)
{
char *str;
ASN1_TIME atm;
- time_t offset;
+ long offset;
char buff1[24],buff2[24],*p;
int i,j;
offset=0;
else
{
- if ((*str != '+') && (str[5] != '-'))
+ if ((*str != '+') && (*str != '-'))
return 0;
offset=((str[1]-'0')*10+(str[2]-'0'))*60;
offset+=(str[3]-'0')*10+(str[4]-'0');
offset= -offset;
}
atm.type=ctm->type;
+ atm.flags = 0;
atm.length=sizeof(buff2);
atm.data=(unsigned char *)buff2;
- X509_time_adj(&atm,-offset*60, cmp_time);
+ if (X509_time_adj(&atm, offset*60, cmp_time) == NULL)
+ return 0;
if (ctm->type == V_ASN1_UTCTIME)
{
return X509_time_adj(s, adj, NULL);
}
-ASN1_TIME *X509_time_adj(ASN1_TIME *s, long adj, time_t *in_tm)
+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);
+ }
+
+ASN1_TIME *X509_time_adj_ex(ASN1_TIME *s,
+ int offset_day, long offset_sec, time_t *in_tm)
{
time_t t;
- int type = -1;
if (in_tm) t = *in_tm;
else time(&t);
- t+=adj;
- if (s) type = s->type;
- if (type == V_ASN1_UTCTIME) return ASN1_UTCTIME_set(s,t);
- if (type == V_ASN1_GENERALIZEDTIME) return ASN1_GENERALIZEDTIME_set(s, t);
- return ASN1_TIME_set(s, 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)
return chain;
}
+X509 *X509_STORE_CTX_get0_current_issuer(X509_STORE_CTX *ctx)
+ {
+ return ctx->current_issuer;
+ }
+
+X509_CRL *X509_STORE_CTX_get0_current_crl(X509_STORE_CTX *ctx)
+ {
+ return ctx->current_crl;
+ }
+
+X509_STORE_CTX *X509_STORE_CTX_get0_parent_ctx(X509_STORE_CTX *ctx)
+ {
+ return ctx->parent;
+ }
+
void X509_STORE_CTX_set_cert(X509_STORE_CTX *ctx, X509 *x)
{
ctx->cert=x;
ctx->untrusted=sk;
}
+void X509_STORE_CTX_set0_crls(X509_STORE_CTX *ctx, STACK_OF(X509_CRL) *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);
}
}
- if (purpose && !ctx->purpose) ctx->purpose = purpose;
- if (trust && !ctx->trust) ctx->trust = trust;
+ if (purpose && !ctx->param->purpose) ctx->param->purpose = purpose;
+ if (trust && !ctx->param->trust) ctx->param->trust = trust;
return 1;
}
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->purpose=store->purpose;
- ctx->trust=store->trust;
- ctx->check_time=0;
- ctx->flags=0;
ctx->other_ctx=NULL;
ctx->valid=0;
ctx->chain=NULL;
- ctx->depth=9;
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.
*/
- ctx->flags = store->flags;
- if (store->check_issued)
+ 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->get_issuer)
+ if (store && store->get_issuer)
ctx->get_issuer = store->get_issuer;
else
ctx->get_issuer = X509_STORE_CTX_get1_issuer;
- if (store->verify_cb)
+ if (store && store->verify_cb)
ctx->verify_cb = store->verify_cb;
else
ctx->verify_cb = null_callback;
- if (store->verify)
+ if (store && store->verify)
ctx->verify = store->verify;
else
ctx->verify = internal_verify;
- if (store->check_revocation)
+ if (store && store->check_revocation)
ctx->check_revocation = store->check_revocation;
else
ctx->check_revocation = check_revocation;
- if (store->get_crl)
+ if (store && store->get_crl)
ctx->get_crl = store->get_crl;
else
- ctx->get_crl = get_crl;
+ ctx->get_crl = NULL;
- if (store->check_crl)
+ if (store && store->check_crl)
ctx->check_crl = store->check_crl;
else
ctx->check_crl = check_crl;
- if (store->cert_crl)
+ if (store && store->cert_crl)
ctx->cert_crl = store->cert_crl;
else
ctx->cert_crl = cert_crl;
- ctx->cleanup = store->cleanup;
+ 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
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);
memset(&ctx->ex_data,0,sizeof(CRYPTO_EX_DATA));
}
-void X509_STORE_CTX_set_flags(X509_STORE_CTX *ctx, long flags)
+void X509_STORE_CTX_set_depth(X509_STORE_CTX *ctx, int depth)
+ {
+ X509_VERIFY_PARAM_set_depth(ctx->param, depth);
+ }
+
+void X509_STORE_CTX_set_flags(X509_STORE_CTX *ctx, unsigned long flags)
{
- ctx->flags |= flags;
+ X509_VERIFY_PARAM_set_flags(ctx->param, flags);
}
-void X509_STORE_CTX_set_time(X509_STORE_CTX *ctx, long flags, time_t t)
+void X509_STORE_CTX_set_time(X509_STORE_CTX *ctx, unsigned long flags, time_t t)
{
- ctx->check_time = t;
- ctx->flags |= X509_V_FLAG_USE_CHECK_TIME;
+ X509_VERIFY_PARAM_set_time(ctx->param, t);
}
void X509_STORE_CTX_set_verify_cb(X509_STORE_CTX *ctx,
ctx->verify_cb=verify_cb;
}
+X509_POLICY_TREE *X509_STORE_CTX_get0_policy_tree(X509_STORE_CTX *ctx)
+ {
+ return ctx->tree;
+ }
+
+int X509_STORE_CTX_get_explicit_policy(X509_STORE_CTX *ctx)
+ {
+ 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);
+ }
+
+X509_VERIFY_PARAM *X509_STORE_CTX_get0_param(X509_STORE_CTX *ctx)
+ {
+ 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;
+ }
+
IMPLEMENT_STACK_OF(X509)
IMPLEMENT_ASN1_SET_OF(X509)
projects / openssl.git / blobdiff