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- markus@cvs.openbsd.org 2010/04/15 20:32:55 

[ssh-pkcs11.c]
     retry lookup for private key if there's no matching key with CKA_SIGN
     attribute enabled; this fixes fixes MuscleCard support (bugzilla #1736)
     ok djm@
This commit is contained in:
Damien Miller 2010-04-16 15:54:44 +10:00
parent b1b17047e3
commit 031c9100df
2 changed files with 39 additions and 11 deletions
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5
ChangeLog
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@ -36,6 +36,11 @@
[ssh_config.5 sshconnect.c]
expand %r => remote username in ssh_config:ProxyCommand;
ok deraadt markus
- markus@cvs.openbsd.org 2010/04/15 20:32:55
[ssh-pkcs11.c]
retry lookup for private key if there's no matching key with CKA_SIGN
attribute enabled; this fixes fixes MuscleCard support (bugzilla #1736)
ok djm@
20100410
- (dtucker) [configure.ac] Put the check for the existence of getaddrinfo

45
ssh-pkcs11.c
View File

@ -1,4 +1,4 @@
/* $OpenBSD: ssh-pkcs11.c,v 1.4 2010/02/24 06:12:53 djm Exp $ */
/* $OpenBSD: ssh-pkcs11.c,v 1.5 2010/04/15 20:32:55 markus Exp $ */
/*
* Copyright (c) 2010 Markus Friedl. All rights reserved.
*
@ -187,6 +187,34 @@ pkcs11_rsa_finish(RSA *rsa)
return (rv);
}
/* find a single 'obj' for given attributes */
static int
pkcs11_find(struct pkcs11_provider *p, CK_ULONG slotidx, CK_ATTRIBUTE *attr,
CK_ULONG nattr, CK_OBJECT_HANDLE *obj)
{
CK_FUNCTION_LIST *f;
CK_SESSION_HANDLE session;
CK_ULONG nfound = 0;
CK_RV rv;
int ret = -1;
f = p->function_list;
session = p->slotinfo[slotidx].session;
if ((rv = f->C_FindObjectsInit(session, attr, nattr)) != CKR_OK) {
error("C_FindObjectsInit failed (nattr %lu): %lu", nattr, rv);
return (-1);
}
if ((rv = f->C_FindObjects(session, obj, 1, &nfound)) != CKR_OK ||
nfound != 1) {
debug("C_FindObjects failed (nfound %lu nattr %lu): %lu",
nfound, nattr, rv);
} else
ret = 0;
if ((rv = f->C_FindObjectsFinal(session)) != CKR_OK)
error("C_FindObjectsFinal failed: %lu", rv);
return (ret);
}
/* openssl callback doing the actual signing operation */
static int
pkcs11_rsa_private_encrypt(int flen, const u_char *from, u_char *to, RSA *rsa,
@ -196,7 +224,7 @@ pkcs11_rsa_private_encrypt(int flen, const u_char *from, u_char *to, RSA *rsa,
struct pkcs11_slotinfo *si;
CK_FUNCTION_LIST *f;
CK_OBJECT_HANDLE obj;
CK_ULONG tlen = 0, nfound = 0;
CK_ULONG tlen = 0;
CK_RV rv;
CK_OBJECT_CLASS private_key_class = CKO_PRIVATE_KEY;
CK_BBOOL true_val = CK_TRUE;
@ -247,13 +275,10 @@ pkcs11_rsa_private_encrypt(int flen, const u_char *from, u_char *to, RSA *rsa,
}
key_filter[1].pValue = k11->keyid;
key_filter[1].ulValueLen = k11->keyid_len;
if ((rv = f->C_FindObjectsInit(si->session, key_filter, 3)) != CKR_OK) {
error("C_FindObjectsInit failed: %lu", rv);
return (-1);
}
if ((rv = f->C_FindObjects(si->session, &obj, 1, &nfound)) != CKR_OK ||
nfound != 1) {
error("C_FindObjects failed (%lu nfound): %lu", nfound, rv);
/* try to find object w/CKA_SIGN first, retry w/o */
if (pkcs11_find(k11->provider, k11->slotidx, key_filter, 3, &obj) < 0 &&
pkcs11_find(k11->provider, k11->slotidx, key_filter, 2, &obj) < 0) {
error("cannot find private key");
} else if ((rv = f->C_SignInit(si->session, &mech, obj)) != CKR_OK) {
error("C_SignInit failed: %lu", rv);
} else {
@ -265,8 +290,6 @@ pkcs11_rsa_private_encrypt(int flen, const u_char *from, u_char *to, RSA *rsa,
else
error("C_Sign failed: %lu", rv);
}
if ((rv = f->C_FindObjectsFinal(si->session)) != CKR_OK)
error("C_FindObjectsFinal failed: %lu", rv);
return (rval);
}