mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-24 17:59:32 +00:00
CIFS: Encrypt SMB3 requests before sending
This change allows to encrypt packets if it is required by a server for SMB sessions or tree connections. Signed-off-by: Pavel Shilovsky <pshilov@microsoft.com>
This commit is contained in:
parent
cabfb3680f
commit
026e93dc0a
10 changed files with 320 additions and 10 deletions
|
@ -174,6 +174,8 @@ config CIFS_SMB2
|
|||
select CRYPTO_AES
|
||||
select CRYPTO_SHA256
|
||||
select CRYPTO_CMAC
|
||||
select CRYPTO_AEAD2
|
||||
select CRYPTO_CCM
|
||||
|
||||
help
|
||||
This enables support for the Server Message Block version 2
|
||||
|
|
|
@ -34,6 +34,7 @@
|
|||
#include <linux/random.h>
|
||||
#include <linux/highmem.h>
|
||||
#include <crypto/skcipher.h>
|
||||
#include <crypto/aead.h>
|
||||
|
||||
static int
|
||||
cifs_crypto_shash_md5_allocate(struct TCP_Server_Info *server)
|
||||
|
@ -874,7 +875,7 @@ calc_seckey(struct cifs_ses *ses)
|
|||
}
|
||||
|
||||
void
|
||||
cifs_crypto_shash_release(struct TCP_Server_Info *server)
|
||||
cifs_crypto_secmech_release(struct TCP_Server_Info *server)
|
||||
{
|
||||
if (server->secmech.cmacaes) {
|
||||
crypto_free_shash(server->secmech.cmacaes);
|
||||
|
@ -896,6 +897,16 @@ cifs_crypto_shash_release(struct TCP_Server_Info *server)
|
|||
server->secmech.hmacmd5 = NULL;
|
||||
}
|
||||
|
||||
if (server->secmech.ccmaesencrypt) {
|
||||
crypto_free_aead(server->secmech.ccmaesencrypt);
|
||||
server->secmech.ccmaesencrypt = NULL;
|
||||
}
|
||||
|
||||
if (server->secmech.ccmaesdecrypt) {
|
||||
crypto_free_aead(server->secmech.ccmaesdecrypt);
|
||||
server->secmech.ccmaesdecrypt = NULL;
|
||||
}
|
||||
|
||||
kfree(server->secmech.sdesccmacaes);
|
||||
server->secmech.sdesccmacaes = NULL;
|
||||
kfree(server->secmech.sdeschmacsha256);
|
||||
|
|
|
@ -1376,6 +1376,8 @@ MODULE_SOFTDEP("pre: nls");
|
|||
MODULE_SOFTDEP("pre: aes");
|
||||
MODULE_SOFTDEP("pre: cmac");
|
||||
MODULE_SOFTDEP("pre: sha256");
|
||||
MODULE_SOFTDEP("pre: aead2");
|
||||
MODULE_SOFTDEP("pre: ccm");
|
||||
#endif /* CONFIG_CIFS_SMB2 */
|
||||
module_init(init_cifs)
|
||||
module_exit(exit_cifs)
|
||||
|
|
|
@ -136,6 +136,8 @@ struct cifs_secmech {
|
|||
struct sdesc *sdescmd5; /* ctxt to generate cifs/smb signature */
|
||||
struct sdesc *sdeschmacsha256; /* ctxt to generate smb2 signature */
|
||||
struct sdesc *sdesccmacaes; /* ctxt to generate smb3 signature */
|
||||
struct crypto_aead *ccmaesencrypt; /* smb3 encryption aead */
|
||||
struct crypto_aead *ccmaesdecrypt; /* smb3 decryption aead */
|
||||
};
|
||||
|
||||
/* per smb session structure/fields */
|
||||
|
|
|
@ -445,7 +445,7 @@ extern int SMBNTencrypt(unsigned char *, unsigned char *, unsigned char *,
|
|||
const struct nls_table *);
|
||||
extern int setup_ntlm_response(struct cifs_ses *, const struct nls_table *);
|
||||
extern int setup_ntlmv2_rsp(struct cifs_ses *, const struct nls_table *);
|
||||
extern void cifs_crypto_shash_release(struct TCP_Server_Info *);
|
||||
extern void cifs_crypto_secmech_release(struct TCP_Server_Info *server);
|
||||
extern int calc_seckey(struct cifs_ses *);
|
||||
extern int generate_smb30signingkey(struct cifs_ses *);
|
||||
extern int generate_smb311signingkey(struct cifs_ses *);
|
||||
|
|
|
@ -2154,7 +2154,7 @@ cifs_put_tcp_session(struct TCP_Server_Info *server, int from_reconnect)
|
|||
server->tcpStatus = CifsExiting;
|
||||
spin_unlock(&GlobalMid_Lock);
|
||||
|
||||
cifs_crypto_shash_release(server);
|
||||
cifs_crypto_secmech_release(server);
|
||||
cifs_fscache_release_client_cookie(server);
|
||||
|
||||
kfree(server->session_key.response);
|
||||
|
@ -2273,7 +2273,7 @@ cifs_get_tcp_session(struct smb_vol *volume_info)
|
|||
return tcp_ses;
|
||||
|
||||
out_err_crypto_release:
|
||||
cifs_crypto_shash_release(tcp_ses);
|
||||
cifs_crypto_secmech_release(tcp_ses);
|
||||
|
||||
put_net(cifs_net_ns(tcp_ses));
|
||||
|
||||
|
|
|
@ -20,6 +20,8 @@
|
|||
#include <linux/pagemap.h>
|
||||
#include <linux/vfs.h>
|
||||
#include <linux/falloc.h>
|
||||
#include <linux/scatterlist.h>
|
||||
#include <crypto/aead.h>
|
||||
#include "cifsglob.h"
|
||||
#include "smb2pdu.h"
|
||||
#include "smb2proto.h"
|
||||
|
@ -1547,6 +1549,256 @@ smb2_dir_needs_close(struct cifsFileInfo *cfile)
|
|||
return !cfile->invalidHandle;
|
||||
}
|
||||
|
||||
static void
|
||||
fill_transform_hdr(struct smb2_transform_hdr *tr_hdr, struct smb_rqst *old_rq)
|
||||
{
|
||||
struct smb2_sync_hdr *shdr =
|
||||
(struct smb2_sync_hdr *)old_rq->rq_iov[1].iov_base;
|
||||
unsigned int orig_len = get_rfc1002_length(old_rq->rq_iov[0].iov_base);
|
||||
|
||||
memset(tr_hdr, 0, sizeof(struct smb2_transform_hdr));
|
||||
tr_hdr->ProtocolId = SMB2_TRANSFORM_PROTO_NUM;
|
||||
tr_hdr->OriginalMessageSize = cpu_to_le32(orig_len);
|
||||
tr_hdr->Flags = cpu_to_le16(0x01);
|
||||
get_random_bytes(&tr_hdr->Nonce, SMB3_AES128CMM_NONCE);
|
||||
memcpy(&tr_hdr->SessionId, &shdr->SessionId, 8);
|
||||
inc_rfc1001_len(tr_hdr, sizeof(struct smb2_transform_hdr) - 4);
|
||||
inc_rfc1001_len(tr_hdr, orig_len);
|
||||
}
|
||||
|
||||
static struct scatterlist *
|
||||
init_sg(struct smb_rqst *rqst, u8 *sign)
|
||||
{
|
||||
unsigned int sg_len = rqst->rq_nvec + rqst->rq_npages + 1;
|
||||
unsigned int assoc_data_len = sizeof(struct smb2_transform_hdr) - 24;
|
||||
struct scatterlist *sg;
|
||||
unsigned int i;
|
||||
unsigned int j;
|
||||
|
||||
sg = kmalloc_array(sg_len, sizeof(struct scatterlist), GFP_KERNEL);
|
||||
if (!sg)
|
||||
return NULL;
|
||||
|
||||
sg_init_table(sg, sg_len);
|
||||
sg_set_buf(&sg[0], rqst->rq_iov[0].iov_base + 24, assoc_data_len);
|
||||
for (i = 1; i < rqst->rq_nvec; i++)
|
||||
sg_set_buf(&sg[i], rqst->rq_iov[i].iov_base,
|
||||
rqst->rq_iov[i].iov_len);
|
||||
for (j = 0; i < sg_len - 1; i++, j++) {
|
||||
unsigned int len = (j < rqst->rq_npages - 1) ? rqst->rq_pagesz
|
||||
: rqst->rq_tailsz;
|
||||
sg_set_page(&sg[i], rqst->rq_pages[j], len, 0);
|
||||
}
|
||||
sg_set_buf(&sg[sg_len - 1], sign, SMB2_SIGNATURE_SIZE);
|
||||
return sg;
|
||||
}
|
||||
|
||||
struct cifs_crypt_result {
|
||||
int err;
|
||||
struct completion completion;
|
||||
};
|
||||
|
||||
static void cifs_crypt_complete(struct crypto_async_request *req, int err)
|
||||
{
|
||||
struct cifs_crypt_result *res = req->data;
|
||||
|
||||
if (err == -EINPROGRESS)
|
||||
return;
|
||||
|
||||
res->err = err;
|
||||
complete(&res->completion);
|
||||
}
|
||||
|
||||
/*
|
||||
* Encrypt or decrypt @rqst message. @rqst has the following format:
|
||||
* iov[0] - transform header (associate data),
|
||||
* iov[1-N] and pages - data to encrypt.
|
||||
* On success return encrypted data in iov[1-N] and pages, leave iov[0]
|
||||
* untouched.
|
||||
*/
|
||||
static int
|
||||
crypt_message(struct TCP_Server_Info *server, struct smb_rqst *rqst, int enc)
|
||||
{
|
||||
struct smb2_transform_hdr *tr_hdr =
|
||||
(struct smb2_transform_hdr *)rqst->rq_iov[0].iov_base;
|
||||
unsigned int assoc_data_len = sizeof(struct smb2_transform_hdr) - 24;
|
||||
struct cifs_ses *ses;
|
||||
int rc = 0;
|
||||
struct scatterlist *sg;
|
||||
u8 sign[SMB2_SIGNATURE_SIZE] = {};
|
||||
struct aead_request *req;
|
||||
char *iv;
|
||||
unsigned int iv_len;
|
||||
struct cifs_crypt_result result = {0, };
|
||||
struct crypto_aead *tfm;
|
||||
unsigned int crypt_len = le32_to_cpu(tr_hdr->OriginalMessageSize);
|
||||
|
||||
init_completion(&result.completion);
|
||||
|
||||
ses = smb2_find_smb_ses(server, tr_hdr->SessionId);
|
||||
if (!ses) {
|
||||
cifs_dbg(VFS, "%s: Could not find session\n", __func__);
|
||||
return 0;
|
||||
}
|
||||
|
||||
rc = smb3_crypto_aead_allocate(server);
|
||||
if (rc) {
|
||||
cifs_dbg(VFS, "%s: crypto alloc failed\n", __func__);
|
||||
return rc;
|
||||
}
|
||||
|
||||
tfm = enc ? server->secmech.ccmaesencrypt :
|
||||
server->secmech.ccmaesdecrypt;
|
||||
rc = crypto_aead_setkey(tfm, enc ? ses->smb3encryptionkey :
|
||||
ses->smb3decryptionkey, SMB3_SIGN_KEY_SIZE);
|
||||
if (rc) {
|
||||
cifs_dbg(VFS, "%s: Failed to set aead key %d\n", __func__, rc);
|
||||
return rc;
|
||||
}
|
||||
|
||||
rc = crypto_aead_setauthsize(tfm, SMB2_SIGNATURE_SIZE);
|
||||
if (rc) {
|
||||
cifs_dbg(VFS, "%s: Failed to set authsize %d\n", __func__, rc);
|
||||
return rc;
|
||||
}
|
||||
|
||||
req = aead_request_alloc(tfm, GFP_KERNEL);
|
||||
if (!req) {
|
||||
cifs_dbg(VFS, "%s: Failed to alloc aead request", __func__);
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
if (!enc) {
|
||||
memcpy(sign, &tr_hdr->Signature, SMB2_SIGNATURE_SIZE);
|
||||
crypt_len += SMB2_SIGNATURE_SIZE;
|
||||
}
|
||||
|
||||
sg = init_sg(rqst, sign);
|
||||
if (!sg) {
|
||||
cifs_dbg(VFS, "%s: Failed to init sg %d", __func__, rc);
|
||||
goto free_req;
|
||||
}
|
||||
|
||||
iv_len = crypto_aead_ivsize(tfm);
|
||||
iv = kzalloc(iv_len, GFP_KERNEL);
|
||||
if (!iv) {
|
||||
cifs_dbg(VFS, "%s: Failed to alloc IV", __func__);
|
||||
goto free_sg;
|
||||
}
|
||||
iv[0] = 3;
|
||||
memcpy(iv + 1, (char *)tr_hdr->Nonce, SMB3_AES128CMM_NONCE);
|
||||
|
||||
aead_request_set_crypt(req, sg, sg, crypt_len, iv);
|
||||
aead_request_set_ad(req, assoc_data_len);
|
||||
|
||||
aead_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
|
||||
cifs_crypt_complete, &result);
|
||||
|
||||
rc = enc ? crypto_aead_encrypt(req) : crypto_aead_decrypt(req);
|
||||
|
||||
if (rc == -EINPROGRESS || rc == -EBUSY) {
|
||||
wait_for_completion(&result.completion);
|
||||
rc = result.err;
|
||||
}
|
||||
|
||||
if (!rc && enc)
|
||||
memcpy(&tr_hdr->Signature, sign, SMB2_SIGNATURE_SIZE);
|
||||
|
||||
kfree(iv);
|
||||
free_sg:
|
||||
kfree(sg);
|
||||
free_req:
|
||||
kfree(req);
|
||||
return rc;
|
||||
}
|
||||
|
||||
static int
|
||||
smb3_init_transform_rq(struct TCP_Server_Info *server, struct smb_rqst *new_rq,
|
||||
struct smb_rqst *old_rq)
|
||||
{
|
||||
struct kvec *iov;
|
||||
struct page **pages;
|
||||
struct smb2_transform_hdr *tr_hdr;
|
||||
unsigned int npages = old_rq->rq_npages;
|
||||
int i;
|
||||
int rc = -ENOMEM;
|
||||
|
||||
pages = kmalloc_array(npages, sizeof(struct page *), GFP_KERNEL);
|
||||
if (!pages)
|
||||
return rc;
|
||||
|
||||
new_rq->rq_pages = pages;
|
||||
new_rq->rq_npages = old_rq->rq_npages;
|
||||
new_rq->rq_pagesz = old_rq->rq_pagesz;
|
||||
new_rq->rq_tailsz = old_rq->rq_tailsz;
|
||||
|
||||
for (i = 0; i < npages; i++) {
|
||||
pages[i] = alloc_page(GFP_KERNEL|__GFP_HIGHMEM);
|
||||
if (!pages[i])
|
||||
goto err_free_pages;
|
||||
}
|
||||
|
||||
iov = kmalloc_array(old_rq->rq_nvec, sizeof(struct kvec), GFP_KERNEL);
|
||||
if (!iov)
|
||||
goto err_free_pages;
|
||||
|
||||
/* copy all iovs from the old except the 1st one (rfc1002 length) */
|
||||
memcpy(&iov[1], &old_rq->rq_iov[1],
|
||||
sizeof(struct kvec) * (old_rq->rq_nvec - 1));
|
||||
new_rq->rq_iov = iov;
|
||||
new_rq->rq_nvec = old_rq->rq_nvec;
|
||||
|
||||
tr_hdr = kmalloc(sizeof(struct smb2_transform_hdr), GFP_KERNEL);
|
||||
if (!tr_hdr)
|
||||
goto err_free_iov;
|
||||
|
||||
/* fill the 1st iov with a transform header */
|
||||
fill_transform_hdr(tr_hdr, old_rq);
|
||||
new_rq->rq_iov[0].iov_base = tr_hdr;
|
||||
new_rq->rq_iov[0].iov_len = sizeof(struct smb2_transform_hdr);
|
||||
|
||||
/* copy pages form the old */
|
||||
for (i = 0; i < npages; i++) {
|
||||
char *dst = kmap(new_rq->rq_pages[i]);
|
||||
char *src = kmap(old_rq->rq_pages[i]);
|
||||
unsigned int len = (i < npages - 1) ? new_rq->rq_pagesz :
|
||||
new_rq->rq_tailsz;
|
||||
memcpy(dst, src, len);
|
||||
kunmap(new_rq->rq_pages[i]);
|
||||
kunmap(old_rq->rq_pages[i]);
|
||||
}
|
||||
|
||||
rc = crypt_message(server, new_rq, 1);
|
||||
cifs_dbg(FYI, "encrypt message returned %d", rc);
|
||||
if (rc)
|
||||
goto err_free_tr_hdr;
|
||||
|
||||
return rc;
|
||||
|
||||
err_free_tr_hdr:
|
||||
kfree(tr_hdr);
|
||||
err_free_iov:
|
||||
kfree(iov);
|
||||
err_free_pages:
|
||||
for (i = i - 1; i >= 0; i--)
|
||||
put_page(pages[i]);
|
||||
kfree(pages);
|
||||
return rc;
|
||||
}
|
||||
|
||||
static void
|
||||
smb3_free_transform_rq(struct smb_rqst *rqst)
|
||||
{
|
||||
int i = rqst->rq_npages - 1;
|
||||
|
||||
for (; i >= 0; i--)
|
||||
put_page(rqst->rq_pages[i]);
|
||||
kfree(rqst->rq_pages);
|
||||
/* free transform header */
|
||||
kfree(rqst->rq_iov[0].iov_base);
|
||||
kfree(rqst->rq_iov);
|
||||
}
|
||||
|
||||
struct smb_version_operations smb20_operations = {
|
||||
.compare_fids = smb2_compare_fids,
|
||||
.setup_request = smb2_setup_request,
|
||||
|
@ -1793,6 +2045,8 @@ struct smb_version_operations smb30_operations = {
|
|||
.dir_needs_close = smb2_dir_needs_close,
|
||||
.fallocate = smb3_fallocate,
|
||||
.enum_snapshots = smb3_enum_snapshots,
|
||||
.init_transform_rq = smb3_init_transform_rq,
|
||||
.free_transform_rq = smb3_free_transform_rq,
|
||||
};
|
||||
|
||||
#ifdef CONFIG_CIFS_SMB311
|
||||
|
@ -1881,6 +2135,8 @@ struct smb_version_operations smb311_operations = {
|
|||
.dir_needs_close = smb2_dir_needs_close,
|
||||
.fallocate = smb3_fallocate,
|
||||
.enum_snapshots = smb3_enum_snapshots,
|
||||
.init_transform_rq = smb3_init_transform_rq,
|
||||
.free_transform_rq = smb3_free_transform_rq,
|
||||
};
|
||||
#endif /* CIFS_SMB311 */
|
||||
|
||||
|
|
|
@ -134,11 +134,14 @@ struct smb2_pdu {
|
|||
__le16 StructureSize2; /* size of wct area (varies, request specific) */
|
||||
} __packed;
|
||||
|
||||
#define SMB3_AES128CMM_NONCE 11
|
||||
#define SMB3_AES128GCM_NONCE 12
|
||||
|
||||
struct smb2_transform_hdr {
|
||||
__be32 smb2_buf_length; /* big endian on wire */
|
||||
/* length is only two or three bytes - with
|
||||
one or two byte type preceding it that MBZ */
|
||||
__u8 ProtocolId[4]; /* 0xFD 'S' 'M' 'B' */
|
||||
__le32 ProtocolId; /* 0xFD 'S' 'M' 'B' */
|
||||
__u8 Signature[16];
|
||||
__u8 Nonce[16];
|
||||
__le32 OriginalMessageSize;
|
||||
|
|
|
@ -56,6 +56,8 @@ extern void smb2_echo_request(struct work_struct *work);
|
|||
extern __le32 smb2_get_lease_state(struct cifsInodeInfo *cinode);
|
||||
extern bool smb2_is_valid_oplock_break(char *buffer,
|
||||
struct TCP_Server_Info *srv);
|
||||
extern struct cifs_ses *smb2_find_smb_ses(struct TCP_Server_Info *server,
|
||||
__u64 ses_id);
|
||||
|
||||
extern void move_smb2_info_to_cifs(FILE_ALL_INFO *dst,
|
||||
struct smb2_file_all_info *src);
|
||||
|
@ -97,6 +99,7 @@ extern int smb2_unlock_range(struct cifsFileInfo *cfile,
|
|||
struct file_lock *flock, const unsigned int xid);
|
||||
extern int smb2_push_mandatory_locks(struct cifsFileInfo *cfile);
|
||||
extern void smb2_reconnect_server(struct work_struct *work);
|
||||
extern int smb3_crypto_aead_allocate(struct TCP_Server_Info *server);
|
||||
|
||||
/*
|
||||
* SMB2 Worker functions - most of protocol specific implementation details
|
||||
|
|
|
@ -31,6 +31,7 @@
|
|||
#include <asm/processor.h>
|
||||
#include <linux/mempool.h>
|
||||
#include <linux/highmem.h>
|
||||
#include <crypto/aead.h>
|
||||
#include "smb2pdu.h"
|
||||
#include "cifsglob.h"
|
||||
#include "cifsproto.h"
|
||||
|
@ -114,14 +115,14 @@ smb3_crypto_shash_allocate(struct TCP_Server_Info *server)
|
|||
return 0;
|
||||
}
|
||||
|
||||
static struct cifs_ses *
|
||||
smb2_find_smb_ses(struct smb2_sync_hdr *shdr, struct TCP_Server_Info *server)
|
||||
struct cifs_ses *
|
||||
smb2_find_smb_ses(struct TCP_Server_Info *server, __u64 ses_id)
|
||||
{
|
||||
struct cifs_ses *ses;
|
||||
|
||||
spin_lock(&cifs_tcp_ses_lock);
|
||||
list_for_each_entry(ses, &server->smb_ses_list, smb_ses_list) {
|
||||
if (ses->Suid != shdr->SessionId)
|
||||
if (ses->Suid != ses_id)
|
||||
continue;
|
||||
spin_unlock(&cifs_tcp_ses_lock);
|
||||
return ses;
|
||||
|
@ -141,7 +142,7 @@ smb2_calc_signature(struct smb_rqst *rqst, struct TCP_Server_Info *server)
|
|||
struct smb2_sync_hdr *shdr = (struct smb2_sync_hdr *)iov[1].iov_base;
|
||||
struct cifs_ses *ses;
|
||||
|
||||
ses = smb2_find_smb_ses(shdr, server);
|
||||
ses = smb2_find_smb_ses(server, shdr->SessionId);
|
||||
if (!ses) {
|
||||
cifs_dbg(VFS, "%s: Could not find session\n", __func__);
|
||||
return 0;
|
||||
|
@ -358,7 +359,7 @@ smb3_calc_signature(struct smb_rqst *rqst, struct TCP_Server_Info *server)
|
|||
struct smb2_sync_hdr *shdr = (struct smb2_sync_hdr *)iov[1].iov_base;
|
||||
struct cifs_ses *ses;
|
||||
|
||||
ses = smb2_find_smb_ses(shdr, server);
|
||||
ses = smb2_find_smb_ses(server, shdr->SessionId);
|
||||
if (!ses) {
|
||||
cifs_dbg(VFS, "%s: Could not find session\n", __func__);
|
||||
return 0;
|
||||
|
@ -618,3 +619,33 @@ smb2_setup_async_request(struct TCP_Server_Info *server, struct smb_rqst *rqst)
|
|||
|
||||
return mid;
|
||||
}
|
||||
|
||||
int
|
||||
smb3_crypto_aead_allocate(struct TCP_Server_Info *server)
|
||||
{
|
||||
struct crypto_aead *tfm;
|
||||
|
||||
if (!server->secmech.ccmaesencrypt) {
|
||||
tfm = crypto_alloc_aead("ccm(aes)", 0, 0);
|
||||
if (IS_ERR(tfm)) {
|
||||
cifs_dbg(VFS, "%s: Failed to alloc encrypt aead\n",
|
||||
__func__);
|
||||
return PTR_ERR(tfm);
|
||||
}
|
||||
server->secmech.ccmaesencrypt = tfm;
|
||||
}
|
||||
|
||||
if (!server->secmech.ccmaesdecrypt) {
|
||||
tfm = crypto_alloc_aead("ccm(aes)", 0, 0);
|
||||
if (IS_ERR(tfm)) {
|
||||
crypto_free_aead(server->secmech.ccmaesencrypt);
|
||||
server->secmech.ccmaesencrypt = NULL;
|
||||
cifs_dbg(VFS, "%s: Failed to alloc decrypt aead\n",
|
||||
__func__);
|
||||
return PTR_ERR(tfm);
|
||||
}
|
||||
server->secmech.ccmaesdecrypt = tfm;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
|
Loading…
Reference in a new issue