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Diffstat (limited to 'lib/vtls/nss.c')
-rw-r--r--lib/vtls/nss.c150
1 files changed, 80 insertions, 70 deletions
diff --git a/lib/vtls/nss.c b/lib/vtls/nss.c
index f26cba0d4..9a5b4f085 100644
--- a/lib/vtls/nss.c
+++ b/lib/vtls/nss.c
@@ -343,7 +343,7 @@ static CURLcode nss_create_object(struct ssl_connect_data *ssl,
CK_BBOOL ckfalse = CK_FALSE;
CK_ATTRIBUTE attrs[/* max count of attributes */ 4];
int attr_cnt = 0;
- CURLcode err = (cacert)
+ CURLcode result = (cacert)
? CURLE_SSL_CACERT_BADFILE
: CURLE_SSL_CERTPROBLEM;
@@ -355,7 +355,7 @@ static CURLcode nss_create_object(struct ssl_connect_data *ssl,
slot = PK11_FindSlotByName(slot_name);
free(slot_name);
if(!slot)
- return err;
+ return result;
PK11_SETATTRS(attrs, attr_cnt, CKA_CLASS, &obj_class, sizeof(obj_class));
PK11_SETATTRS(attrs, attr_cnt, CKA_TOKEN, &cktrue, sizeof(CK_BBOOL));
@@ -370,7 +370,7 @@ static CURLcode nss_create_object(struct ssl_connect_data *ssl,
obj = PK11_CreateGenericObject(slot, attrs, attr_cnt, PR_FALSE);
PK11_FreeSlot(slot);
if(!obj)
- return err;
+ return result;
if(!Curl_llist_insert_next(ssl->obj_list, ssl->obj_list->tail, obj)) {
PK11_DestroyGenericObject(obj);
@@ -405,16 +405,16 @@ static void nss_destroy_crl_item(void *user, void *ptr)
static CURLcode nss_load_cert(struct ssl_connect_data *ssl,
const char *filename, PRBool cacert)
{
- CURLcode err = (cacert)
+ CURLcode result = (cacert)
? CURLE_SSL_CACERT_BADFILE
: CURLE_SSL_CERTPROBLEM;
/* libnsspem.so leaks memory if the requested file does not exist. For more
* details, go to <https://bugzilla.redhat.com/734760>. */
if(is_file(filename))
- err = nss_create_object(ssl, CKO_CERTIFICATE, filename, cacert);
+ result = nss_create_object(ssl, CKO_CERTIFICATE, filename, cacert);
- if(CURLE_OK == err && !cacert) {
+ if(!result && !cacert) {
/* we have successfully loaded a client certificate */
CERTCertificate *cert;
char *nickname = NULL;
@@ -436,7 +436,7 @@ static CURLcode nss_load_cert(struct ssl_connect_data *ssl,
}
}
- return err;
+ return result;
}
/* add given CRL to cache if it is not already there */
@@ -542,14 +542,15 @@ static CURLcode nss_load_key(struct connectdata *conn, int sockindex,
{
PK11SlotInfo *slot;
SECStatus status;
- CURLcode rv;
+ CURLcode result;
struct ssl_connect_data *ssl = conn->ssl;
+
(void)sockindex; /* unused */
- rv = nss_create_object(ssl, CKO_PRIVATE_KEY, key_file, FALSE);
- if(CURLE_OK != rv) {
+ result = nss_create_object(ssl, CKO_PRIVATE_KEY, key_file, FALSE);
+ if(result) {
PR_SetError(SEC_ERROR_BAD_KEY, 0);
- return rv;
+ return result;
}
slot = PK11_FindSlotByName("PEM Token #1");
@@ -563,9 +564,8 @@ static CURLcode nss_load_key(struct connectdata *conn, int sockindex,
status = PK11_Authenticate(slot, PR_TRUE,
conn->data->set.str[STRING_KEY_PASSWD]);
PK11_FreeSlot(slot);
- return (SECSuccess == status)
- ? CURLE_OK
- : CURLE_SSL_CERTPROBLEM;
+
+ return (SECSuccess == status) ? CURLE_OK : CURLE_SSL_CERTPROBLEM;
}
static int display_error(struct connectdata *conn, PRInt32 err,
@@ -588,35 +588,35 @@ static CURLcode cert_stuff(struct connectdata *conn, int sockindex,
char *cert_file, char *key_file)
{
struct SessionHandle *data = conn->data;
- CURLcode rv;
+ CURLcode result;
if(cert_file) {
- rv = nss_load_cert(&conn->ssl[sockindex], cert_file, PR_FALSE);
- if(CURLE_OK != rv) {
+ result = nss_load_cert(&conn->ssl[sockindex], cert_file, PR_FALSE);
+ if(result) {
const PRErrorCode err = PR_GetError();
if(!display_error(conn, err, cert_file)) {
const char *err_name = nss_error_to_name(err);
failf(data, "unable to load client cert: %d (%s)", err, err_name);
}
- return rv;
+ return result;
}
}
if(key_file || (is_file(cert_file))) {
if(key_file)
- rv = nss_load_key(conn, sockindex, key_file);
+ result = nss_load_key(conn, sockindex, key_file);
else
/* In case the cert file also has the key */
- rv = nss_load_key(conn, sockindex, cert_file);
- if(CURLE_OK != rv) {
+ result = nss_load_key(conn, sockindex, cert_file);
+ if(result) {
const PRErrorCode err = PR_GetError();
if(!display_error(conn, err, key_file)) {
const char *err_name = nss_error_to_name(err);
failf(data, "unable to load client key: %d (%s)", err, err_name);
}
- return rv;
+ return result;
}
}
@@ -626,6 +626,7 @@ static CURLcode cert_stuff(struct connectdata *conn, int sockindex,
static char * nss_get_password(PK11SlotInfo * slot, PRBool retry, void *arg)
{
(void)slot; /* unused */
+
if(retry || NULL == arg)
return NULL;
else
@@ -1031,7 +1032,7 @@ static CURLcode nss_init(struct SessionHandle *data)
{
char *cert_dir;
struct_stat st;
- CURLcode rv;
+ CURLcode result;
if(initialized)
return CURLE_OK;
@@ -1073,14 +1074,15 @@ static CURLcode nss_init(struct SessionHandle *data)
nspr_io_methods.close = nspr_io_close;
}
- rv = nss_init_core(data, cert_dir);
- if(rv)
- return rv;
+ result = nss_init_core(data, cert_dir);
+ if(result)
+ return result;
if(num_enabled_ciphers() == 0)
NSS_SetDomesticPolicy();
initialized = 1;
+
return CURLE_OK;
}
@@ -1106,18 +1108,18 @@ int Curl_nss_init(void)
CURLcode Curl_nss_force_init(struct SessionHandle *data)
{
- CURLcode rv;
+ CURLcode result;
if(!nss_initlock) {
- failf(data,
- "unable to initialize NSS, curl_global_init() should have been "
- "called with CURL_GLOBAL_SSL or CURL_GLOBAL_ALL");
+ failf(data, "unable to initialize NSS, curl_global_init() should have "
+ "been called with CURL_GLOBAL_SSL or CURL_GLOBAL_ALL");
return CURLE_FAILED_INIT;
}
PR_Lock(nss_initlock);
- rv = nss_init(data);
+ result = nss_init(data);
PR_Unlock(nss_initlock);
- return rv;
+
+ return result;
}
/* Global cleanup */
@@ -1266,9 +1268,9 @@ static CURLcode nss_load_ca_certificates(struct connectdata *conn,
const char *capath = data->set.ssl.CApath;
if(cafile) {
- CURLcode rv = nss_load_cert(&conn->ssl[sockindex], cafile, PR_TRUE);
- if(CURLE_OK != rv)
- return rv;
+ CURLcode result = nss_load_cert(&conn->ssl[sockindex], cafile, PR_TRUE);
+ if(result)
+ return result;
}
if(capath) {
@@ -1313,7 +1315,7 @@ static CURLcode nss_load_ca_certificates(struct connectdata *conn,
static CURLcode nss_init_sslver(SSLVersionRange *sslver,
struct SessionHandle *data)
{
- switch (data->set.ssl.version) {
+ switch(data->set.ssl.version) {
default:
case CURL_SSLVERSION_DEFAULT:
case CURL_SSLVERSION_TLSv1:
@@ -1385,6 +1387,7 @@ static CURLcode nss_fail_connect(struct ssl_connect_data *connssl,
/* cleanup on connection failure */
Curl_llist_destroy(connssl->obj_list, NULL);
connssl->obj_list = NULL;
+
return curlerr;
}
@@ -1412,7 +1415,7 @@ static CURLcode nss_setup_connect(struct connectdata *conn, int sockindex)
struct SessionHandle *data = conn->data;
curl_socket_t sockfd = conn->sock[sockindex];
struct ssl_connect_data *connssl = &conn->ssl[sockindex];
- CURLcode curlerr;
+ CURLcode result;
SSLVersionRange sslver = {
SSL_LIBRARY_VERSION_TLS_1_0, /* min */
@@ -1429,7 +1432,6 @@ static CURLcode nss_setup_connect(struct connectdata *conn, int sockindex)
#endif
#endif
-
connssl->data = data;
/* list of all NSS objects we need to destroy in Curl_nss_close() */
@@ -1439,13 +1441,13 @@ static CURLcode nss_setup_connect(struct connectdata *conn, int sockindex)
/* FIXME. NSS doesn't support multiple databases open at the same time. */
PR_Lock(nss_initlock);
- curlerr = nss_init(conn->data);
- if(CURLE_OK != curlerr) {
+ result = nss_init(conn->data);
+ if(result) {
PR_Unlock(nss_initlock);
goto error;
}
- curlerr = CURLE_SSL_CONNECT_ERROR;
+ result = CURLE_SSL_CONNECT_ERROR;
if(!mod) {
char *configstring = aprintf("library=%s name=PEM", pem_library);
@@ -1462,7 +1464,7 @@ static CURLcode nss_setup_connect(struct connectdata *conn, int sockindex)
mod = NULL;
}
infof(data, "WARNING: failed to load NSS PEM library %s. Using "
- "OpenSSL PEM certificates will not work.\n", pem_library);
+ "OpenSSL PEM certificates will not work.\n", pem_library);
}
}
@@ -1507,7 +1509,7 @@ static CURLcode nss_setup_connect(struct connectdata *conn, int sockindex)
if(data->set.ssl.cipher_list) {
if(set_ciphers(data, model, data->set.ssl.cipher_list) != SECSuccess) {
- curlerr = CURLE_SSL_CIPHER;
+ result = CURLE_SSL_CIPHER;
goto error;
}
}
@@ -1529,16 +1531,16 @@ static CURLcode nss_setup_connect(struct connectdata *conn, int sockindex)
if(data->set.ssl.verifypeer) {
const CURLcode rv = nss_load_ca_certificates(conn, sockindex);
- if(CURLE_OK != rv) {
- curlerr = rv;
+ if(rv) {
+ result = rv;
goto error;
}
}
if(data->set.ssl.CRLfile) {
const CURLcode rv = nss_load_crl(data->set.ssl.CRLfile);
- if(CURLE_OK != rv) {
- curlerr = rv;
+ if(rv) {
+ result = rv;
goto error;
}
infof(data, " CRLfile: %s\n", data->set.ssl.CRLfile);
@@ -1553,9 +1555,9 @@ static CURLcode nss_setup_connect(struct connectdata *conn, int sockindex)
else {
CURLcode rv = cert_stuff(conn, sockindex, data->set.str[STRING_CERT],
data->set.str[STRING_KEY]);
- if(CURLE_OK != rv) {
+ if(rv) {
/* failf() is already done in cert_stuff() */
- curlerr = rv;
+ result = rv;
goto error;
}
}
@@ -1568,7 +1570,7 @@ static CURLcode nss_setup_connect(struct connectdata *conn, int sockindex)
if(SSL_GetClientAuthDataHook(model, SelectClientCert,
(void *)connssl) != SECSuccess) {
- curlerr = CURLE_SSL_CERTPROBLEM;
+ result = CURLE_SSL_CERTPROBLEM;
goto error;
}
@@ -1661,21 +1663,21 @@ error:
if(model)
PR_Close(model);
- return nss_fail_connect(connssl, data, curlerr);
+ return nss_fail_connect(connssl, data, result);
}
static CURLcode nss_do_connect(struct connectdata *conn, int sockindex)
{
struct ssl_connect_data *connssl = &conn->ssl[sockindex];
struct SessionHandle *data = conn->data;
- CURLcode curlerr = CURLE_SSL_CONNECT_ERROR;
+ CURLcode result = CURLE_SSL_CONNECT_ERROR;
PRUint32 timeout;
/* check timeout situation */
const long time_left = Curl_timeleft(data, NULL, TRUE);
if(time_left < 0L) {
failf(data, "timed out before SSL handshake");
- curlerr = CURLE_OPERATION_TIMEDOUT;
+ result = CURLE_OPERATION_TIMEDOUT;
goto error;
}
@@ -1686,9 +1688,9 @@ static CURLcode nss_do_connect(struct connectdata *conn, int sockindex)
/* blocking direction is updated by nss_update_connecting_state() */
return CURLE_AGAIN;
else if(conn->data->set.ssl.certverifyresult == SSL_ERROR_BAD_CERT_DOMAIN)
- curlerr = CURLE_PEER_FAILED_VERIFICATION;
+ result = CURLE_PEER_FAILED_VERIFICATION;
else if(conn->data->set.ssl.certverifyresult!=0)
- curlerr = CURLE_SSL_CACERT;
+ result = CURLE_SSL_CACERT;
goto error;
}
@@ -1705,7 +1707,7 @@ static CURLcode nss_do_connect(struct connectdata *conn, int sockindex)
if(SECFailure == ret) {
infof(data,"SSL certificate issuer check failed\n");
- curlerr = CURLE_SSL_ISSUER_ERROR;
+ result = CURLE_SSL_ISSUER_ERROR;
goto error;
}
else {
@@ -1716,7 +1718,7 @@ static CURLcode nss_do_connect(struct connectdata *conn, int sockindex)
return CURLE_OK;
error:
- return nss_fail_connect(connssl, data, curlerr);
+ return nss_fail_connect(connssl, data, result);
}
static CURLcode nss_connect_common(struct connectdata *conn, int sockindex,
@@ -1725,29 +1727,29 @@ static CURLcode nss_connect_common(struct connectdata *conn, int sockindex,
struct ssl_connect_data *connssl = &conn->ssl[sockindex];
struct SessionHandle *data = conn->data;
const bool blocking = (done == NULL);
- CURLcode rv;
+ CURLcode result;
if(connssl->state == ssl_connection_complete)
return CURLE_OK;
if(connssl->connecting_state == ssl_connect_1) {
- rv = nss_setup_connect(conn, sockindex);
- if(rv)
+ result = nss_setup_connect(conn, sockindex);
+ if(result)
/* we do not expect CURLE_AGAIN from nss_setup_connect() */
- return rv;
+ return result;
if(!blocking) {
/* in non-blocking mode, set NSS non-blocking mode before handshake */
- rv = nss_set_nonblock(connssl, data);
- if(rv)
- return rv;
+ result = nss_set_nonblock(connssl, data);
+ if(result)
+ return result;
}
connssl->connecting_state = ssl_connect_2;
}
- rv = nss_do_connect(conn, sockindex);
- switch(rv) {
+ result = nss_do_connect(conn, sockindex);
+ switch(result) {
case CURLE_OK:
break;
case CURLE_AGAIN:
@@ -1756,14 +1758,14 @@ static CURLcode nss_connect_common(struct connectdata *conn, int sockindex,
return CURLE_OK;
/* fall through */
default:
- return rv;
+ return result;
}
if(blocking) {
/* in blocking mode, set NSS non-blocking mode _after_ SSL handshake */
- rv = nss_set_nonblock(connssl, data);
- if(rv)
- return rv;
+ result = nss_set_nonblock(connssl, data);
+ if(result)
+ return result;
}
else
/* signal completed SSL handshake */
@@ -1775,6 +1777,7 @@ static CURLcode nss_connect_common(struct connectdata *conn, int sockindex,
/* ssl_connect_done is never used outside, go back to the initial state */
connssl->connecting_state = ssl_connect_1;
+
return CURLE_OK;
}
@@ -1813,8 +1816,10 @@ static ssize_t nss_send(struct connectdata *conn, /* connection data */
? CURLE_SSL_CERTPROBLEM
: CURLE_SEND_ERROR;
}
+
return -1;
}
+
return rc; /* number of bytes */
}
@@ -1844,8 +1849,10 @@ static ssize_t nss_recv(struct connectdata * conn, /* connection data */
? CURLE_SSL_CERTPROBLEM
: CURLE_RECV_ERROR;
}
+
return -1;
}
+
return nread;
}
@@ -1867,11 +1874,13 @@ int Curl_nss_random(struct SessionHandle *data,
{
if(data)
Curl_nss_seed(data); /* Initiate the seed if not already done */
+
if(SECSuccess != PK11_GenerateRandom(entropy, curlx_uztosi(length))) {
/* no way to signal a failure from here, we have to abort */
failf(data, "PK11_GenerateRandom() failed, calling abort()...");
abort();
}
+
return 0;
}
@@ -1882,6 +1891,7 @@ void Curl_nss_md5sum(unsigned char *tmp, /* input */
{
PK11Context *MD5pw = PK11_CreateDigestContext(SEC_OID_MD5);
unsigned int MD5out;
+
PK11_DigestOp(MD5pw, tmp, curlx_uztoui(tmplen));
PK11_DigestFinal(MD5pw, md5sum, &MD5out, curlx_uztoui(md5len));
PK11_DestroyContext(MD5pw, PR_TRUE);