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[crypto] Differentiate "untrusted root" and "incomplete chain" error cases

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Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown 2012-03-22 10:55:13 +00:00
parent 5c66395939
commit f2af64aba5
2 changed files with 18 additions and 6 deletions
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14
src/crypto/x509.c
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@ -93,6 +93,10 @@ FILE_LICENCE ( GPL2_OR_LATER );
__einfo_error ( EINFO_EACCES_PATH_LEN )
#define EINFO_EACCES_PATH_LEN \
__einfo_uniqify ( EINFO_EACCES, 0x05, "Maximum path length exceeded" )
#define EACCES_UNTRUSTED \
__einfo_error ( EINFO_EACCES_UNTRUSTED )
#define EINFO_EACCES_UNTRUSTED \
__einfo_uniqify ( EINFO_EACCES, 0x06, "Untrusted root certificate" )
/** "commonName" object identifier */
static uint8_t oid_common_name[] = { ASN1_OID_COMMON_NAME };
@ -1179,10 +1183,18 @@ int x509_validate_chain ( int ( * parse_next )
if ( ( rc = x509_validate_time ( current, time ) ) != 0 )
return rc;
/* Succeed if we have reached a root certificate */
/* Succeed if we have reached a trusted root certificate */
if ( x509_validate_root ( current, root ) == 0 )
return 0;
/* Fail if we have reached an untrusted root certificate */
if ( asn1_compare ( &current->issuer.raw,
&current->subject.raw ) == 0 ) {
DBGC ( context, "X509 chain %p reached untrusted root "
"certificate\n", context );
return -EACCES_UNTRUSTED;
}
/* Get next certificate in chain */
if ( ( rc = parse_next ( next, current, context ) ) != 0 ) {
DBGC ( context, "X509 chain %p could not get next "

10
src/net/tls.c
View File

@ -46,10 +46,10 @@ FILE_LICENCE ( GPL2_OR_LATER );
#include <ipxe/tls.h>
/* Disambiguate the various error causes */
#define EACCES_UNTRUSTED \
__einfo_error ( EINFO_EACCES_UNTRUSTED )
#define EINFO_EACCES_UNTRUSTED \
__einfo_uniqify ( EINFO_EACCES, 0x01, "Untrusted certificate chain" )
#define EACCES_INCOMPLETE \
__einfo_error ( EINFO_EACCES_INCOMPLETE )
#define EINFO_EACCES_INCOMPLETE \
__einfo_uniqify ( EINFO_EACCES, 0x01, "Incomplete certificate chain" )
#define EACCES_WRONG_NAME \
__einfo_error ( EINFO_EACCES_WRONG_NAME )
#define EINFO_EACCES_WRONG_NAME \
@ -1302,7 +1302,7 @@ static int tls_parse_next ( struct x509_certificate *cert,
/* Return error at end of chain */
if ( context->current >= context->end ) {
DBGC ( tls, "TLS %p reached end of certificate chain\n", tls );
return -EACCES_UNTRUSTED;
return -EACCES_INCOMPLETE;
}
/* Extract current certificate and update context */