in crypto/pkey_api.c [1140:1575]
static long pkey_unlocked_ioctl(struct file *filp, unsigned int cmd,
unsigned long arg)
{
int rc;
switch (cmd) {
case PKEY_GENSECK: {
struct pkey_genseck __user *ugs = (void __user *) arg;
struct pkey_genseck kgs;
if (copy_from_user(&kgs, ugs, sizeof(kgs)))
return -EFAULT;
rc = cca_genseckey(kgs.cardnr, kgs.domain,
kgs.keytype, kgs.seckey.seckey);
DEBUG_DBG("%s cca_genseckey()=%d\n", __func__, rc);
if (rc)
break;
if (copy_to_user(ugs, &kgs, sizeof(kgs)))
return -EFAULT;
break;
}
case PKEY_CLR2SECK: {
struct pkey_clr2seck __user *ucs = (void __user *) arg;
struct pkey_clr2seck kcs;
if (copy_from_user(&kcs, ucs, sizeof(kcs)))
return -EFAULT;
rc = cca_clr2seckey(kcs.cardnr, kcs.domain, kcs.keytype,
kcs.clrkey.clrkey, kcs.seckey.seckey);
DEBUG_DBG("%s cca_clr2seckey()=%d\n", __func__, rc);
if (rc)
break;
if (copy_to_user(ucs, &kcs, sizeof(kcs)))
return -EFAULT;
memzero_explicit(&kcs, sizeof(kcs));
break;
}
case PKEY_SEC2PROTK: {
struct pkey_sec2protk __user *usp = (void __user *) arg;
struct pkey_sec2protk ksp;
if (copy_from_user(&ksp, usp, sizeof(ksp)))
return -EFAULT;
rc = cca_sec2protkey(ksp.cardnr, ksp.domain,
ksp.seckey.seckey, ksp.protkey.protkey,
&ksp.protkey.len, &ksp.protkey.type);
DEBUG_DBG("%s cca_sec2protkey()=%d\n", __func__, rc);
if (rc)
break;
if (copy_to_user(usp, &ksp, sizeof(ksp)))
return -EFAULT;
break;
}
case PKEY_CLR2PROTK: {
struct pkey_clr2protk __user *ucp = (void __user *) arg;
struct pkey_clr2protk kcp;
if (copy_from_user(&kcp, ucp, sizeof(kcp)))
return -EFAULT;
rc = pkey_clr2protkey(kcp.keytype,
&kcp.clrkey, &kcp.protkey);
DEBUG_DBG("%s pkey_clr2protkey()=%d\n", __func__, rc);
if (rc)
break;
if (copy_to_user(ucp, &kcp, sizeof(kcp)))
return -EFAULT;
memzero_explicit(&kcp, sizeof(kcp));
break;
}
case PKEY_FINDCARD: {
struct pkey_findcard __user *ufc = (void __user *) arg;
struct pkey_findcard kfc;
if (copy_from_user(&kfc, ufc, sizeof(kfc)))
return -EFAULT;
rc = cca_findcard(kfc.seckey.seckey,
&kfc.cardnr, &kfc.domain, 1);
DEBUG_DBG("%s cca_findcard()=%d\n", __func__, rc);
if (rc < 0)
break;
if (copy_to_user(ufc, &kfc, sizeof(kfc)))
return -EFAULT;
break;
}
case PKEY_SKEY2PKEY: {
struct pkey_skey2pkey __user *usp = (void __user *) arg;
struct pkey_skey2pkey ksp;
if (copy_from_user(&ksp, usp, sizeof(ksp)))
return -EFAULT;
rc = pkey_skey2pkey(ksp.seckey.seckey, &ksp.protkey);
DEBUG_DBG("%s pkey_skey2pkey()=%d\n", __func__, rc);
if (rc)
break;
if (copy_to_user(usp, &ksp, sizeof(ksp)))
return -EFAULT;
break;
}
case PKEY_VERIFYKEY: {
struct pkey_verifykey __user *uvk = (void __user *) arg;
struct pkey_verifykey kvk;
if (copy_from_user(&kvk, uvk, sizeof(kvk)))
return -EFAULT;
rc = pkey_verifykey(&kvk.seckey, &kvk.cardnr, &kvk.domain,
&kvk.keysize, &kvk.attributes);
DEBUG_DBG("%s pkey_verifykey()=%d\n", __func__, rc);
if (rc)
break;
if (copy_to_user(uvk, &kvk, sizeof(kvk)))
return -EFAULT;
break;
}
case PKEY_GENPROTK: {
struct pkey_genprotk __user *ugp = (void __user *) arg;
struct pkey_genprotk kgp;
if (copy_from_user(&kgp, ugp, sizeof(kgp)))
return -EFAULT;
rc = pkey_genprotkey(kgp.keytype, &kgp.protkey);
DEBUG_DBG("%s pkey_genprotkey()=%d\n", __func__, rc);
if (rc)
break;
if (copy_to_user(ugp, &kgp, sizeof(kgp)))
return -EFAULT;
break;
}
case PKEY_VERIFYPROTK: {
struct pkey_verifyprotk __user *uvp = (void __user *) arg;
struct pkey_verifyprotk kvp;
if (copy_from_user(&kvp, uvp, sizeof(kvp)))
return -EFAULT;
rc = pkey_verifyprotkey(&kvp.protkey);
DEBUG_DBG("%s pkey_verifyprotkey()=%d\n", __func__, rc);
break;
}
case PKEY_KBLOB2PROTK: {
struct pkey_kblob2pkey __user *utp = (void __user *) arg;
struct pkey_kblob2pkey ktp;
u8 *kkey;
if (copy_from_user(&ktp, utp, sizeof(ktp)))
return -EFAULT;
kkey = _copy_key_from_user(ktp.key, ktp.keylen);
if (IS_ERR(kkey))
return PTR_ERR(kkey);
rc = pkey_keyblob2pkey(kkey, ktp.keylen, &ktp.protkey);
DEBUG_DBG("%s pkey_keyblob2pkey()=%d\n", __func__, rc);
kfree(kkey);
if (rc)
break;
if (copy_to_user(utp, &ktp, sizeof(ktp)))
return -EFAULT;
break;
}
case PKEY_GENSECK2: {
struct pkey_genseck2 __user *ugs = (void __user *) arg;
struct pkey_genseck2 kgs;
struct pkey_apqn *apqns;
size_t klen = KEYBLOBBUFSIZE;
u8 *kkey;
if (copy_from_user(&kgs, ugs, sizeof(kgs)))
return -EFAULT;
apqns = _copy_apqns_from_user(kgs.apqns, kgs.apqn_entries);
if (IS_ERR(apqns))
return PTR_ERR(apqns);
kkey = kmalloc(klen, GFP_KERNEL);
if (!kkey) {
kfree(apqns);
return -ENOMEM;
}
rc = pkey_genseckey2(apqns, kgs.apqn_entries,
kgs.type, kgs.size, kgs.keygenflags,
kkey, &klen);
DEBUG_DBG("%s pkey_genseckey2()=%d\n", __func__, rc);
kfree(apqns);
if (rc) {
kfree(kkey);
break;
}
if (kgs.key) {
if (kgs.keylen < klen) {
kfree(kkey);
return -EINVAL;
}
if (copy_to_user(kgs.key, kkey, klen)) {
kfree(kkey);
return -EFAULT;
}
}
kgs.keylen = klen;
if (copy_to_user(ugs, &kgs, sizeof(kgs)))
rc = -EFAULT;
kfree(kkey);
break;
}
case PKEY_CLR2SECK2: {
struct pkey_clr2seck2 __user *ucs = (void __user *) arg;
struct pkey_clr2seck2 kcs;
struct pkey_apqn *apqns;
size_t klen = KEYBLOBBUFSIZE;
u8 *kkey;
if (copy_from_user(&kcs, ucs, sizeof(kcs)))
return -EFAULT;
apqns = _copy_apqns_from_user(kcs.apqns, kcs.apqn_entries);
if (IS_ERR(apqns))
return PTR_ERR(apqns);
kkey = kmalloc(klen, GFP_KERNEL);
if (!kkey) {
kfree(apqns);
return -ENOMEM;
}
rc = pkey_clr2seckey2(apqns, kcs.apqn_entries,
kcs.type, kcs.size, kcs.keygenflags,
kcs.clrkey.clrkey, kkey, &klen);
DEBUG_DBG("%s pkey_clr2seckey2()=%d\n", __func__, rc);
kfree(apqns);
if (rc) {
kfree(kkey);
break;
}
if (kcs.key) {
if (kcs.keylen < klen) {
kfree(kkey);
return -EINVAL;
}
if (copy_to_user(kcs.key, kkey, klen)) {
kfree(kkey);
return -EFAULT;
}
}
kcs.keylen = klen;
if (copy_to_user(ucs, &kcs, sizeof(kcs)))
rc = -EFAULT;
memzero_explicit(&kcs, sizeof(kcs));
kfree(kkey);
break;
}
case PKEY_VERIFYKEY2: {
struct pkey_verifykey2 __user *uvk = (void __user *) arg;
struct pkey_verifykey2 kvk;
u8 *kkey;
if (copy_from_user(&kvk, uvk, sizeof(kvk)))
return -EFAULT;
kkey = _copy_key_from_user(kvk.key, kvk.keylen);
if (IS_ERR(kkey))
return PTR_ERR(kkey);
rc = pkey_verifykey2(kkey, kvk.keylen,
&kvk.cardnr, &kvk.domain,
&kvk.type, &kvk.size, &kvk.flags);
DEBUG_DBG("%s pkey_verifykey2()=%d\n", __func__, rc);
kfree(kkey);
if (rc)
break;
if (copy_to_user(uvk, &kvk, sizeof(kvk)))
return -EFAULT;
break;
}
case PKEY_KBLOB2PROTK2: {
struct pkey_kblob2pkey2 __user *utp = (void __user *) arg;
struct pkey_kblob2pkey2 ktp;
struct pkey_apqn *apqns = NULL;
u8 *kkey;
if (copy_from_user(&ktp, utp, sizeof(ktp)))
return -EFAULT;
apqns = _copy_apqns_from_user(ktp.apqns, ktp.apqn_entries);
if (IS_ERR(apqns))
return PTR_ERR(apqns);
kkey = _copy_key_from_user(ktp.key, ktp.keylen);
if (IS_ERR(kkey)) {
kfree(apqns);
return PTR_ERR(kkey);
}
rc = pkey_keyblob2pkey2(apqns, ktp.apqn_entries,
kkey, ktp.keylen, &ktp.protkey);
DEBUG_DBG("%s pkey_keyblob2pkey2()=%d\n", __func__, rc);
kfree(apqns);
kfree(kkey);
if (rc)
break;
if (copy_to_user(utp, &ktp, sizeof(ktp)))
return -EFAULT;
break;
}
case PKEY_APQNS4K: {
struct pkey_apqns4key __user *uak = (void __user *) arg;
struct pkey_apqns4key kak;
struct pkey_apqn *apqns = NULL;
size_t nr_apqns, len;
u8 *kkey;
if (copy_from_user(&kak, uak, sizeof(kak)))
return -EFAULT;
nr_apqns = kak.apqn_entries;
if (nr_apqns) {
apqns = kmalloc_array(nr_apqns,
sizeof(struct pkey_apqn),
GFP_KERNEL);
if (!apqns)
return -ENOMEM;
}
kkey = _copy_key_from_user(kak.key, kak.keylen);
if (IS_ERR(kkey)) {
kfree(apqns);
return PTR_ERR(kkey);
}
rc = pkey_apqns4key(kkey, kak.keylen, kak.flags,
apqns, &nr_apqns);
DEBUG_DBG("%s pkey_apqns4key()=%d\n", __func__, rc);
kfree(kkey);
if (rc && rc != -ENOSPC) {
kfree(apqns);
break;
}
if (!rc && kak.apqns) {
if (nr_apqns > kak.apqn_entries) {
kfree(apqns);
return -EINVAL;
}
len = nr_apqns * sizeof(struct pkey_apqn);
if (len) {
if (copy_to_user(kak.apqns, apqns, len)) {
kfree(apqns);
return -EFAULT;
}
}
}
kak.apqn_entries = nr_apqns;
if (copy_to_user(uak, &kak, sizeof(kak)))
rc = -EFAULT;
kfree(apqns);
break;
}
case PKEY_APQNS4KT: {
struct pkey_apqns4keytype __user *uat = (void __user *) arg;
struct pkey_apqns4keytype kat;
struct pkey_apqn *apqns = NULL;
size_t nr_apqns, len;
if (copy_from_user(&kat, uat, sizeof(kat)))
return -EFAULT;
nr_apqns = kat.apqn_entries;
if (nr_apqns) {
apqns = kmalloc_array(nr_apqns,
sizeof(struct pkey_apqn),
GFP_KERNEL);
if (!apqns)
return -ENOMEM;
}
rc = pkey_apqns4keytype(kat.type, kat.cur_mkvp, kat.alt_mkvp,
kat.flags, apqns, &nr_apqns);
DEBUG_DBG("%s pkey_apqns4keytype()=%d\n", __func__, rc);
if (rc && rc != -ENOSPC) {
kfree(apqns);
break;
}
if (!rc && kat.apqns) {
if (nr_apqns > kat.apqn_entries) {
kfree(apqns);
return -EINVAL;
}
len = nr_apqns * sizeof(struct pkey_apqn);
if (len) {
if (copy_to_user(kat.apqns, apqns, len)) {
kfree(apqns);
return -EFAULT;
}
}
}
kat.apqn_entries = nr_apqns;
if (copy_to_user(uat, &kat, sizeof(kat)))
rc = -EFAULT;
kfree(apqns);
break;
}
case PKEY_KBLOB2PROTK3: {
struct pkey_kblob2pkey3 __user *utp = (void __user *) arg;
struct pkey_kblob2pkey3 ktp;
struct pkey_apqn *apqns = NULL;
u32 protkeylen = PROTKEYBLOBBUFSIZE;
u8 *kkey, *protkey;
if (copy_from_user(&ktp, utp, sizeof(ktp)))
return -EFAULT;
apqns = _copy_apqns_from_user(ktp.apqns, ktp.apqn_entries);
if (IS_ERR(apqns))
return PTR_ERR(apqns);
kkey = _copy_key_from_user(ktp.key, ktp.keylen);
if (IS_ERR(kkey)) {
kfree(apqns);
return PTR_ERR(kkey);
}
protkey = kmalloc(protkeylen, GFP_KERNEL);
if (!protkey) {
kfree(apqns);
kfree(kkey);
return -ENOMEM;
}
rc = pkey_keyblob2pkey3(apqns, ktp.apqn_entries, kkey,
ktp.keylen, &ktp.pkeytype,
protkey, &protkeylen);
DEBUG_DBG("%s pkey_keyblob2pkey3()=%d\n", __func__, rc);
kfree(apqns);
kfree(kkey);
if (rc) {
kfree(protkey);
break;
}
if (ktp.pkey && ktp.pkeylen) {
if (protkeylen > ktp.pkeylen) {
kfree(protkey);
return -EINVAL;
}
if (copy_to_user(ktp.pkey, protkey, protkeylen)) {
kfree(protkey);
return -EFAULT;
}
}
kfree(protkey);
ktp.pkeylen = protkeylen;
if (copy_to_user(utp, &ktp, sizeof(ktp)))
return -EFAULT;
break;
}
default:
/* unknown/unsupported ioctl cmd */
return -ENOTTY;
}
return rc;
}