Revert "Eliminate sparse warning - bad constant expression"
This reverts commit 2d20ca8358.
The change to kernel crypto and fixes to ntlvm2 and ntlmssp
series, introduced a regression. Deferring this patch series
to 2.6.37 after Shirish fixes it.
Signed-off-by: Steve French <sfrench@us.ibm.com>
Acked-by: Jeff Layton <jlayton@redhat.com>
CC: Shirish Pargaonkar <shirishp@us.ibm.com>
This commit is contained in:
Steve French
parent
7100ae9726
commit
56234e2767
@ -45,38 +45,39 @@ extern void SMBencrypt(unsigned char *passwd, const unsigned char *c8,
|
||||
static int cifs_calculate_signature(const struct smb_hdr *cifs_pdu,
|
||||
struct TCP_Server_Info *server, char *signature)
|
||||
{
|
||||
int rc;
|
||||
int rc = 0;
|
||||
struct {
|
||||
struct shash_desc shash;
|
||||
char ctx[crypto_shash_descsize(server->ntlmssp.md5)];
|
||||
} sdesc;
|
||||
|
||||
if (cifs_pdu == NULL || server == NULL || signature == NULL)
|
||||
return -EINVAL;
|
||||
|
||||
if (!server->ntlmssp.sdescmd5) {
|
||||
cERROR(1,
|
||||
"cifs_calculate_signature: can't generate signature\n");
|
||||
return -1;
|
||||
}
|
||||
sdesc.shash.tfm = server->ntlmssp.md5;
|
||||
sdesc.shash.flags = 0x0;
|
||||
|
||||
rc = crypto_shash_init(&server->ntlmssp.sdescmd5->shash);
|
||||
rc = crypto_shash_init(&sdesc.shash);
|
||||
if (rc) {
|
||||
cERROR(1, "cifs_calculate_signature: oould not init md5\n");
|
||||
cERROR(1, "could not initialize master crypto API hmacmd5\n");
|
||||
return rc;
|
||||
}
|
||||
|
||||
if (server->secType == RawNTLMSSP)
|
||||
crypto_shash_update(&server->ntlmssp.sdescmd5->shash,
|
||||
crypto_shash_update(&sdesc.shash,
|
||||
server->session_key.data.ntlmv2.key,
|
||||
CIFS_NTLMV2_SESSKEY_SIZE);
|
||||
else
|
||||
crypto_shash_update(&server->ntlmssp.sdescmd5->shash,
|
||||
crypto_shash_update(&sdesc.shash,
|
||||
(char *)&server->session_key.data,
|
||||
server->session_key.len);
|
||||
|
||||
crypto_shash_update(&server->ntlmssp.sdescmd5->shash,
|
||||
crypto_shash_update(&sdesc.shash,
|
||||
cifs_pdu->Protocol, cifs_pdu->smb_buf_length);
|
||||
|
||||
rc = crypto_shash_final(&server->ntlmssp.sdescmd5->shash, signature);
|
||||
rc = crypto_shash_final(&sdesc.shash, signature);
|
||||
|
||||
return rc;
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
@ -114,28 +115,30 @@ static int cifs_calc_signature2(const struct kvec *iov, int n_vec,
|
||||
struct TCP_Server_Info *server, char *signature)
|
||||
{
|
||||
int i;
|
||||
int rc;
|
||||
int rc = 0;
|
||||
struct {
|
||||
struct shash_desc shash;
|
||||
char ctx[crypto_shash_descsize(server->ntlmssp.md5)];
|
||||
} sdesc;
|
||||
|
||||
if (iov == NULL || server == NULL || signature == NULL)
|
||||
return -EINVAL;
|
||||
|
||||
if (!server->ntlmssp.sdescmd5) {
|
||||
cERROR(1, "cifs_calc_signature2: can't generate signature\n");
|
||||
return -1;
|
||||
}
|
||||
sdesc.shash.tfm = server->ntlmssp.md5;
|
||||
sdesc.shash.flags = 0x0;
|
||||
|
||||
rc = crypto_shash_init(&server->ntlmssp.sdescmd5->shash);
|
||||
rc = crypto_shash_init(&sdesc.shash);
|
||||
if (rc) {
|
||||
cERROR(1, "cifs_calc_signature2: oould not init md5\n");
|
||||
cERROR(1, "could not initialize master crypto API hmacmd5\n");
|
||||
return rc;
|
||||
}
|
||||
|
||||
if (server->secType == RawNTLMSSP)
|
||||
crypto_shash_update(&server->ntlmssp.sdescmd5->shash,
|
||||
crypto_shash_update(&sdesc.shash,
|
||||
server->session_key.data.ntlmv2.key,
|
||||
CIFS_NTLMV2_SESSKEY_SIZE);
|
||||
else
|
||||
crypto_shash_update(&server->ntlmssp.sdescmd5->shash,
|
||||
crypto_shash_update(&sdesc.shash,
|
||||
(char *)&server->session_key.data,
|
||||
server->session_key.len);
|
||||
|
||||
@ -143,7 +146,7 @@ static int cifs_calc_signature2(const struct kvec *iov, int n_vec,
|
||||
if (iov[i].iov_len == 0)
|
||||
continue;
|
||||
if (iov[i].iov_base == NULL) {
|
||||
cERROR(1, "cifs_calc_signature2: null iovec entry");
|
||||
cERROR(1, "null iovec entry");
|
||||
return -EIO;
|
||||
}
|
||||
/* The first entry includes a length field (which does not get
|
||||
@ -151,16 +154,16 @@ static int cifs_calc_signature2(const struct kvec *iov, int n_vec,
|
||||
if (i == 0) {
|
||||
if (iov[0].iov_len <= 8) /* cmd field at offset 9 */
|
||||
break; /* nothing to sign or corrupt header */
|
||||
crypto_shash_update(&server->ntlmssp.sdescmd5->shash,
|
||||
crypto_shash_update(&sdesc.shash,
|
||||
iov[i].iov_base + 4, iov[i].iov_len - 4);
|
||||
} else
|
||||
crypto_shash_update(&server->ntlmssp.sdescmd5->shash,
|
||||
crypto_shash_update(&sdesc.shash,
|
||||
iov[i].iov_base, iov[i].iov_len);
|
||||
}
|
||||
|
||||
rc = crypto_shash_final(&server->ntlmssp.sdescmd5->shash, signature);
|
||||
rc = crypto_shash_final(&sdesc.shash, signature);
|
||||
|
||||
return rc;
|
||||
return 0;
|
||||
}
|
||||
|
||||
int cifs_sign_smb2(struct kvec *iov, int n_vec, struct TCP_Server_Info *server,
|
||||
@ -310,48 +313,43 @@ static int calc_ntlmv2_hash(struct cifsSesInfo *ses,
|
||||
wchar_t *user;
|
||||
wchar_t *domain;
|
||||
wchar_t *server;
|
||||
|
||||
if (!ses->server->ntlmssp.sdeschmacmd5) {
|
||||
cERROR(1, "calc_ntlmv2_hash: can't generate ntlmv2 hash\n");
|
||||
return -1;
|
||||
}
|
||||
struct {
|
||||
struct shash_desc shash;
|
||||
char ctx[crypto_shash_descsize(ses->server->ntlmssp.hmacmd5)];
|
||||
} sdesc;
|
||||
|
||||
/* calculate md4 hash of password */
|
||||
E_md4hash(ses->password, nt_hash);
|
||||
|
||||
sdesc.shash.tfm = ses->server->ntlmssp.hmacmd5;
|
||||
sdesc.shash.flags = 0x0;
|
||||
|
||||
crypto_shash_setkey(ses->server->ntlmssp.hmacmd5, nt_hash,
|
||||
CIFS_NTHASH_SIZE);
|
||||
|
||||
rc = crypto_shash_init(&ses->server->ntlmssp.sdeschmacmd5->shash);
|
||||
rc = crypto_shash_init(&sdesc.shash);
|
||||
if (rc) {
|
||||
cERROR(1, "calc_ntlmv2_hash: could not init hmacmd5\n");
|
||||
cERROR(1, "could not initialize master crypto API hmacmd5\n");
|
||||
return rc;
|
||||
}
|
||||
|
||||
/* convert ses->userName to unicode and uppercase */
|
||||
len = strlen(ses->userName);
|
||||
user = kmalloc(2 + (len * 2), GFP_KERNEL);
|
||||
if (user == NULL) {
|
||||
cERROR(1, "calc_ntlmv2_hash: user mem alloc failure\n");
|
||||
rc = -ENOMEM;
|
||||
if (user == NULL)
|
||||
goto calc_exit_2;
|
||||
}
|
||||
len = cifs_strtoUCS((__le16 *)user, ses->userName, len, nls_cp);
|
||||
UniStrupr(user);
|
||||
|
||||
crypto_shash_update(&ses->server->ntlmssp.sdeschmacmd5->shash,
|
||||
(char *)user, 2 * len);
|
||||
crypto_shash_update(&sdesc.shash, (char *)user, 2 * len);
|
||||
|
||||
/* convert ses->domainName to unicode and uppercase */
|
||||
if (ses->domainName) {
|
||||
len = strlen(ses->domainName);
|
||||
|
||||
domain = kmalloc(2 + (len * 2), GFP_KERNEL);
|
||||
if (domain == NULL) {
|
||||
cERROR(1, "calc_ntlmv2_hash: domain mem alloc failure");
|
||||
rc = -ENOMEM;
|
||||
if (domain == NULL)
|
||||
goto calc_exit_1;
|
||||
}
|
||||
len = cifs_strtoUCS((__le16 *)domain, ses->domainName, len,
|
||||
nls_cp);
|
||||
/* the following line was removed since it didn't work well
|
||||
@ -359,19 +357,15 @@ static int calc_ntlmv2_hash(struct cifsSesInfo *ses,
|
||||
Maybe converting the domain name earlier makes sense */
|
||||
/* UniStrupr(domain); */
|
||||
|
||||
crypto_shash_update(&ses->server->ntlmssp.sdeschmacmd5->shash,
|
||||
(char *)domain, 2 * len);
|
||||
crypto_shash_update(&sdesc.shash, (char *)domain, 2 * len);
|
||||
|
||||
kfree(domain);
|
||||
} else if (ses->serverName) {
|
||||
len = strlen(ses->serverName);
|
||||
|
||||
server = kmalloc(2 + (len * 2), GFP_KERNEL);
|
||||
if (server == NULL) {
|
||||
cERROR(1, "calc_ntlmv2_hash: server mem alloc failure");
|
||||
rc = -ENOMEM;
|
||||
if (server == NULL)
|
||||
goto calc_exit_1;
|
||||
}
|
||||
len = cifs_strtoUCS((__le16 *)server, ses->serverName, len,
|
||||
nls_cp);
|
||||
/* the following line was removed since it didn't work well
|
||||
@ -379,20 +373,16 @@ static int calc_ntlmv2_hash(struct cifsSesInfo *ses,
|
||||
Maybe converting the domain name earlier makes sense */
|
||||
/* UniStrupr(domain); */
|
||||
|
||||
crypto_shash_update(&ses->server->ntlmssp.sdeschmacmd5->shash,
|
||||
(char *)server, 2 * len);
|
||||
crypto_shash_update(&sdesc.shash, (char *)server, 2 * len);
|
||||
|
||||
kfree(server);
|
||||
}
|
||||
|
||||
rc = crypto_shash_final(&ses->server->ntlmssp.sdeschmacmd5->shash,
|
||||
ses->server->ntlmv2_hash);
|
||||
|
||||
calc_exit_1:
|
||||
kfree(user);
|
||||
calc_exit_2:
|
||||
/* BB FIXME what about bytes 24 through 40 of the signing key?
|
||||
compare with the NTLM example */
|
||||
rc = crypto_shash_final(&sdesc.shash, ses->server->ntlmv2_hash);
|
||||
|
||||
return rc;
|
||||
}
|
||||
@ -452,33 +442,34 @@ CalcNTLMv2_response(const struct TCP_Server_Info *server,
|
||||
char *v2_session_response)
|
||||
{
|
||||
int rc;
|
||||
struct {
|
||||
struct shash_desc shash;
|
||||
char ctx[crypto_shash_descsize(server->ntlmssp.hmacmd5)];
|
||||
} sdesc;
|
||||
|
||||
if (!server->ntlmssp.sdeschmacmd5) {
|
||||
cERROR(1, "calc_ntlmv2_hash: can't generate ntlmv2 hash\n");
|
||||
return -1;
|
||||
}
|
||||
sdesc.shash.tfm = server->ntlmssp.hmacmd5;
|
||||
sdesc.shash.flags = 0x0;
|
||||
|
||||
crypto_shash_setkey(server->ntlmssp.hmacmd5, server->ntlmv2_hash,
|
||||
CIFS_HMAC_MD5_HASH_SIZE);
|
||||
|
||||
rc = crypto_shash_init(&server->ntlmssp.sdeschmacmd5->shash);
|
||||
rc = crypto_shash_init(&sdesc.shash);
|
||||
if (rc) {
|
||||
cERROR(1, "CalcNTLMv2_response: could not init hmacmd5");
|
||||
cERROR(1, "could not initialize master crypto API hmacmd5\n");
|
||||
return rc;
|
||||
}
|
||||
|
||||
memcpy(v2_session_response + CIFS_SERVER_CHALLENGE_SIZE,
|
||||
server->cryptKey, CIFS_SERVER_CHALLENGE_SIZE);
|
||||
crypto_shash_update(&server->ntlmssp.sdeschmacmd5->shash,
|
||||
crypto_shash_update(&sdesc.shash,
|
||||
v2_session_response + CIFS_SERVER_CHALLENGE_SIZE,
|
||||
sizeof(struct ntlmv2_resp) - CIFS_SERVER_CHALLENGE_SIZE);
|
||||
|
||||
if (server->tilen)
|
||||
crypto_shash_update(&server->ntlmssp.sdeschmacmd5->shash,
|
||||
crypto_shash_update(&sdesc.shash,
|
||||
server->tiblob, server->tilen);
|
||||
|
||||
rc = crypto_shash_final(&server->ntlmssp.sdeschmacmd5->shash,
|
||||
v2_session_response);
|
||||
rc = crypto_shash_final(&sdesc.shash, v2_session_response);
|
||||
|
||||
return rc;
|
||||
}
|
||||
@ -489,6 +480,10 @@ setup_ntlmv2_rsp(struct cifsSesInfo *ses, char *resp_buf,
|
||||
{
|
||||
int rc = 0;
|
||||
struct ntlmv2_resp *buf = (struct ntlmv2_resp *)resp_buf;
|
||||
struct {
|
||||
struct shash_desc shash;
|
||||
char ctx[crypto_shash_descsize(ses->server->ntlmssp.hmacmd5)];
|
||||
} sdesc;
|
||||
|
||||
buf->blob_signature = cpu_to_le32(0x00000101);
|
||||
buf->reserved = 0;
|
||||
@ -516,24 +511,21 @@ setup_ntlmv2_rsp(struct cifsSesInfo *ses, char *resp_buf,
|
||||
return rc;
|
||||
}
|
||||
|
||||
if (!ses->server->ntlmssp.sdeschmacmd5) {
|
||||
cERROR(1, "calc_ntlmv2_hash: can't generate ntlmv2 hash\n");
|
||||
return -1;
|
||||
}
|
||||
|
||||
crypto_shash_setkey(ses->server->ntlmssp.hmacmd5,
|
||||
ses->server->ntlmv2_hash, CIFS_HMAC_MD5_HASH_SIZE);
|
||||
|
||||
rc = crypto_shash_init(&ses->server->ntlmssp.sdeschmacmd5->shash);
|
||||
sdesc.shash.tfm = ses->server->ntlmssp.hmacmd5;
|
||||
sdesc.shash.flags = 0x0;
|
||||
|
||||
rc = crypto_shash_init(&sdesc.shash);
|
||||
if (rc) {
|
||||
cERROR(1, "setup_ntlmv2_rsp: could not init hmacmd5\n");
|
||||
cERROR(1, "could not initialize master crypto API hmacmd5\n");
|
||||
return rc;
|
||||
}
|
||||
|
||||
crypto_shash_update(&ses->server->ntlmssp.sdeschmacmd5->shash,
|
||||
resp_buf, CIFS_HMAC_MD5_HASH_SIZE);
|
||||
crypto_shash_update(&sdesc.shash, resp_buf, CIFS_HMAC_MD5_HASH_SIZE);
|
||||
|
||||
rc = crypto_shash_final(&ses->server->ntlmssp.sdeschmacmd5->shash,
|
||||
rc = crypto_shash_final(&sdesc.shash,
|
||||
ses->server->session_key.data.ntlmv2.key);
|
||||
|
||||
memcpy(&ses->server->session_key.data.ntlmv2.resp, resp_buf,
|
||||
@ -586,65 +578,24 @@ cifs_crypto_shash_release(struct TCP_Server_Info *server)
|
||||
|
||||
if (server->ntlmssp.hmacmd5)
|
||||
crypto_free_shash(server->ntlmssp.hmacmd5);
|
||||
|
||||
kfree(server->ntlmssp.sdeschmacmd5);
|
||||
|
||||
kfree(server->ntlmssp.sdescmd5);
|
||||
}
|
||||
|
||||
int
|
||||
cifs_crypto_shash_allocate(struct TCP_Server_Info *server)
|
||||
{
|
||||
int rc;
|
||||
unsigned int size;
|
||||
|
||||
server->ntlmssp.hmacmd5 = crypto_alloc_shash("hmac(md5)", 0, 0);
|
||||
if (!server->ntlmssp.hmacmd5 ||
|
||||
IS_ERR(server->ntlmssp.hmacmd5)) {
|
||||
cERROR(1, "could not allocate crypto hmacmd5\n");
|
||||
cERROR(1, "could not allocate master crypto API hmacmd5\n");
|
||||
return 1;
|
||||
}
|
||||
|
||||
server->ntlmssp.md5 = crypto_alloc_shash("md5", 0, 0);
|
||||
if (!server->ntlmssp.md5 || IS_ERR(server->ntlmssp.md5)) {
|
||||
cERROR(1, "could not allocate crypto md5\n");
|
||||
rc = 1;
|
||||
goto cifs_crypto_shash_allocate_ret1;
|
||||
crypto_free_shash(server->ntlmssp.hmacmd5);
|
||||
cERROR(1, "could not allocate master crypto API md5\n");
|
||||
return 1;
|
||||
}
|
||||
|
||||
size = sizeof(struct shash_desc) +
|
||||
crypto_shash_descsize(server->ntlmssp.hmacmd5);
|
||||
server->ntlmssp.sdeschmacmd5 = kmalloc(size, GFP_KERNEL);
|
||||
if (!server->ntlmssp.sdeschmacmd5) {
|
||||
cERROR(1, "cifs_crypto_shash_allocate: can't alloc hmacmd5\n");
|
||||
rc = -ENOMEM;
|
||||
goto cifs_crypto_shash_allocate_ret2;
|
||||
}
|
||||
server->ntlmssp.sdeschmacmd5->shash.tfm = server->ntlmssp.hmacmd5;
|
||||
server->ntlmssp.sdeschmacmd5->shash.flags = 0x0;
|
||||
|
||||
|
||||
size = sizeof(struct shash_desc) +
|
||||
crypto_shash_descsize(server->ntlmssp.md5);
|
||||
server->ntlmssp.sdescmd5 = kmalloc(size, GFP_KERNEL);
|
||||
if (!server->ntlmssp.sdescmd5) {
|
||||
cERROR(1, "cifs_crypto_shash_allocate: can't alloc md5\n");
|
||||
rc = -ENOMEM;
|
||||
goto cifs_crypto_shash_allocate_ret3;
|
||||
}
|
||||
server->ntlmssp.sdescmd5->shash.tfm = server->ntlmssp.md5;
|
||||
server->ntlmssp.sdescmd5->shash.flags = 0x0;
|
||||
|
||||
return 0;
|
||||
|
||||
cifs_crypto_shash_allocate_ret3:
|
||||
kfree(server->ntlmssp.sdeschmacmd5);
|
||||
|
||||
cifs_crypto_shash_allocate_ret2:
|
||||
crypto_free_shash(server->ntlmssp.md5);
|
||||
|
||||
cifs_crypto_shash_allocate_ret1:
|
||||
crypto_free_shash(server->ntlmssp.hmacmd5);
|
||||
|
||||
return rc;
|
||||
}
|
||||
|
||||
@ -123,19 +123,12 @@ struct cifs_cred {
|
||||
struct cifs_ace *aces;
|
||||
};
|
||||
|
||||
struct sdesc {
|
||||
struct shash_desc shash;
|
||||
char ctx[];
|
||||
};
|
||||
|
||||
struct ntlmssp_auth {
|
||||
__u32 client_flags;
|
||||
__u32 server_flags;
|
||||
unsigned char ciphertext[CIFS_CPHTXT_SIZE];
|
||||
struct crypto_shash *hmacmd5;
|
||||
struct crypto_shash *md5;
|
||||
struct sdesc *sdeschmacmd5;
|
||||
struct sdesc *sdescmd5;
|
||||
};
|
||||
|
||||
/*
|
||||
|
||||
Loading…
Reference in New Issue
Block a user