-
-#ifdef CONFIG_CIFS_WEAK_PW_HASH
-void calc_lanman_hash(struct cifsSesInfo * ses, char * lnm_session_key)
-{
- int i;
- char password_with_pad[CIFS_ENCPWD_SIZE];
-
- if(ses->server == NULL)
- return;
-
- memset(password_with_pad, 0, CIFS_ENCPWD_SIZE);
- if(ses->password)
- strncpy(password_with_pad, ses->password, CIFS_ENCPWD_SIZE);
-
- if((ses->server->secMode & SECMODE_PW_ENCRYPT) == 0)
- if(extended_security & CIFSSEC_MAY_PLNTXT) {
- memcpy(lnm_session_key, password_with_pad, CIFS_ENCPWD_SIZE);
- return;
- }
-
- /* calculate old style session key */
- /* calling toupper is less broken than repeatedly
- calling nls_toupper would be since that will never
- work for UTF8, but neither handles multibyte code pages
- but the only alternative would be converting to UCS-16 (Unicode)
- (using a routine something like UniStrupr) then
- uppercasing and then converting back from Unicode - which
- would only worth doing it if we knew it were utf8. Basically
- utf8 and other multibyte codepages each need their own strupper
- function since a byte at a time will ont work. */
-
- for(i = 0; i < CIFS_ENCPWD_SIZE; i++) {
- password_with_pad[i] = toupper(password_with_pad[i]);
- }
-
- SMBencrypt(password_with_pad, ses->server->cryptKey, lnm_session_key);
- /* clear password before we return/free memory */
- memset(password_with_pad, 0, CIFS_ENCPWD_SIZE);
-}
-#endif /* CIFS_WEAK_PW_HASH */
-
-static int calc_ntlmv2_hash(struct cifsSesInfo *ses,
- const struct nls_table * nls_cp)
-{
- int rc = 0;
- int len;
- char nt_hash[16];
- struct HMACMD5Context * pctxt;
- wchar_t * user;
- wchar_t * domain;
-
- pctxt = kmalloc(sizeof(struct HMACMD5Context), GFP_KERNEL);
-
- if(pctxt == NULL)
- return -ENOMEM;
-
- /* calculate md4 hash of password */
- E_md4hash(ses->password, nt_hash);
-
- /* convert Domainname to unicode and uppercase */
- hmac_md5_init_limK_to_64(nt_hash, 16, pctxt);
-
- /* convert ses->userName to unicode and uppercase */
- len = strlen(ses->userName);
- user = kmalloc(2 + (len * 2), GFP_KERNEL);
- if(user == NULL)
- goto calc_exit_2;
- len = cifs_strtoUCS(user, ses->userName, len, nls_cp);
- UniStrupr(user);
- hmac_md5_update((char *)user, 2*len, pctxt);
-
- /* convert ses->domainName to unicode and uppercase */
- if(ses->domainName) {
- len = strlen(ses->domainName);
-
- domain = kmalloc(2 + (len * 2), GFP_KERNEL);
- if(domain == NULL)
- goto calc_exit_1;
- len = cifs_strtoUCS(domain, ses->domainName, len, nls_cp);
- UniStrupr(domain);
-
- hmac_md5_update((char *)domain, 2*len, pctxt);
-
- kfree(domain);
- }
-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 */
- hmac_md5_final(ses->server->mac_signing_key, pctxt);
-
- return rc;
-}
-
-void setup_ntlmv2_rsp(struct cifsSesInfo * ses, char * resp_buf,
- const struct nls_table * nls_cp)
-{
- int rc;
- struct ntlmv2_resp * buf = (struct ntlmv2_resp *)resp_buf;
-
- buf->blob_signature = cpu_to_le32(0x00000101);
- buf->reserved = 0;
- buf->time = cpu_to_le64(cifs_UnixTimeToNT(CURRENT_TIME));
- get_random_bytes(&buf->client_chal, sizeof(buf->client_chal));
- buf->reserved2 = 0;
- buf->names[0].type = 0;
- buf->names[0].length = 0;
-
- /* calculate buf->ntlmv2_hash */
- rc = calc_ntlmv2_hash(ses, nls_cp);
- if(rc)
- cERROR(1,("could not get v2 hash rc %d",rc));
- CalcNTLMv2_response(ses, resp_buf);
-}
-
-void CalcNTLMv2_response(const struct cifsSesInfo * ses, char * v2_session_response)