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- Fixed identification of non-critical CA certificates

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This commit is contained in:
Paul Bakker 2011-01-16 21:46:31 +00:00
parent b619499eb3
commit 3cccddb238
1 changed files with 6 additions and 8 deletions
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14
library/x509parse.c
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@ -724,7 +724,6 @@ static int x509_get_crl_ext( unsigned char **p,
static int x509_get_basic_constraints( unsigned char **p, static int x509_get_basic_constraints( unsigned char **p,
const unsigned char *end, const unsigned char *end,
int is_critical,
int *ca_istrue, int *ca_istrue,
int *max_pathlen ) int *max_pathlen )
{ {
@ -735,7 +734,7 @@ static int x509_get_basic_constraints( unsigned char **p,
* cA BOOLEAN DEFAULT FALSE, * cA BOOLEAN DEFAULT FALSE,
* pathLenConstraint INTEGER (0..MAX) OPTIONAL } * pathLenConstraint INTEGER (0..MAX) OPTIONAL }
*/ */
int is_cacert = 0; /* DEFAULT FALSE */ *ca_istrue = 0; /* DEFAULT FALSE */
*max_pathlen = 0; /* endless */ *max_pathlen = 0; /* endless */
if( ( ret = asn1_get_tag( p, end, &len, if( ( ret = asn1_get_tag( p, end, &len,
@ -745,16 +744,16 @@ static int x509_get_basic_constraints( unsigned char **p,
if( *p == end ) if( *p == end )
return 0; return 0;
if( ( ret = asn1_get_bool( p, end, &is_cacert ) ) != 0 ) if( ( ret = asn1_get_bool( p, end, ca_istrue ) ) != 0 )
{ {
if( ret == POLARSSL_ERR_ASN1_UNEXPECTED_TAG ) if( ret == POLARSSL_ERR_ASN1_UNEXPECTED_TAG )
ret = asn1_get_int( p, end, &is_cacert ); ret = asn1_get_int( p, end, ca_istrue );
if( ret != 0 ) if( ret != 0 )
return( POLARSSL_ERR_X509_CERT_INVALID_EXTENSIONS | ret ); return( POLARSSL_ERR_X509_CERT_INVALID_EXTENSIONS | ret );
if( is_cacert != 0 ) if( *ca_istrue != 0 )
is_cacert = 1; *ca_istrue = 1;
} }
if( *p == end ) if( *p == end )
@ -769,7 +768,6 @@ static int x509_get_basic_constraints( unsigned char **p,
(*max_pathlen)++; (*max_pathlen)++;
*ca_istrue = is_critical & is_cacert;
return 0; return 0;
} }
@ -909,7 +907,7 @@ static int x509_get_crt_ext( unsigned char **p,
{ {
/* Parse basic constraints */ /* Parse basic constraints */
if( ( ret = x509_get_basic_constraints( p, end_ext_octet, if( ( ret = x509_get_basic_constraints( p, end_ext_octet,
is_critical, &crt->ca_istrue, &crt->max_pathlen ) ) != 0 ) &crt->ca_istrue, &crt->max_pathlen ) ) != 0 )
return ( ret ); return ( ret );
crt->ext_types |= EXT_BASIC_CONSTRAINTS; crt->ext_types |= EXT_BASIC_CONSTRAINTS;
} }