cifs: clean up unused encryption code

Remove unsed  #if 0 encryption code.

Signed-off-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <smfrench@gmail.com>

diff --git a/fs/cifs/smbencrypt.c b/fs/cifs/smbencrypt.c
index 42b9fff..ac1221d 100644 (file)
--- a/fs/cifs/smbencrypt.c
+++ b/fs/cifs/smbencrypt.c
@@ -265,91 +265,6 @@ E_md4hash(const unsigned char *passwd, unsigned char *p16)
        return rc;
 }
 
-#if 0 /* currently unused */
-/* Does both the NT and LM owfs of a user's password */
-static void
-nt_lm_owf_gen(char *pwd, unsigned char nt_p16[16], unsigned char p16[16])
-{
-       char passwd[514];
-
-       memset(passwd, '\0', 514);
-       if (strlen(pwd) < 513)
-               strcpy(passwd, pwd);
-       else
-               memcpy(passwd, pwd, 512);
-       /* Calculate the MD4 hash (NT compatible) of the password */
-       memset(nt_p16, '\0', 16);
-       E_md4hash(passwd, nt_p16);
-
-       /* Mangle the passwords into Lanman format */
-       passwd[14] = '\0';
-/*     strupper(passwd); */
-
-       /* Calculate the SMB (lanman) hash functions of the password */
-
-       memset(p16, '\0', 16);
-       E_P16((unsigned char *) passwd, (unsigned char *) p16);
-
-       /* clear out local copy of user's password (just being paranoid). */
-       memset(passwd, '\0', sizeof(passwd));
-}
-#endif
-
-/* Does the NTLMv2 owfs of a user's password */
-#if 0  /* function not needed yet - but will be soon */
-static void
-ntv2_owf_gen(const unsigned char owf[16], const char *user_n,
-               const char *domain_n, unsigned char kr_buf[16],
-               const struct nls_table *nls_codepage)
-{
-       wchar_t *user_u;
-       wchar_t *dom_u;
-       int user_l, domain_l;
-       struct HMACMD5Context ctx;
-
-       /* might as well do one alloc to hold both (user_u and dom_u) */
-       user_u = kmalloc(2048 * sizeof(wchar_t), GFP_KERNEL);
-       if (user_u == NULL)
-               return;
-       dom_u = user_u + 1024;
-
-       /* push_ucs2(NULL, user_u, user_n, (user_l+1)*2,
-                       STR_UNICODE|STR_NOALIGN|STR_TERMINATE|STR_UPPER);
-          push_ucs2(NULL, dom_u, domain_n, (domain_l+1)*2,
-                       STR_UNICODE|STR_NOALIGN|STR_TERMINATE|STR_UPPER); */
-
-       /* BB user and domain may need to be uppercased */
-       user_l = cifs_strtoUCS(user_u, user_n, 511, nls_codepage);
-       domain_l = cifs_strtoUCS(dom_u, domain_n, 511, nls_codepage);
-
-       user_l++;               /* trailing null */
-       domain_l++;
-
-       hmac_md5_init_limK_to_64(owf, 16, &ctx);
-       hmac_md5_update((const unsigned char *) user_u, user_l * 2, &ctx);
-       hmac_md5_update((const unsigned char *) dom_u, domain_l * 2, &ctx);
-       hmac_md5_final(kr_buf, &ctx);
-
-       kfree(user_u);
-}
-#endif
-
-/* Does the des encryption from the FIRST 8 BYTES of the NT or LM MD4 hash. */
-#if 0 /* currently unused */
-static void
-NTLMSSPOWFencrypt(unsigned char passwd[8],
-                 unsigned char *ntlmchalresp, unsigned char p24[24])
-{
-       unsigned char p21[21];
-
-       memset(p21, '\0', 21);
-       memcpy(p21, passwd, 8);
-       memset(p21 + 8, 0xbd, 8);
-
-       E_P24(p21, ntlmchalresp, p24);
-}
-#endif
-
 /* Does the NT MD4 hash then des encryption. */
 int
 SMBNTencrypt(unsigned char *passwd, unsigned char *c8, unsigned char *p24)
@@ -369,39 +284,3 @@ SMBNTencrypt(unsigned char *passwd, unsigned char *c8, unsigned char *p24)
        rc = E_P24(p21, c8, p24);
        return rc;
 }
-
-
-/* Does the md5 encryption from the NT hash for NTLMv2. */
-/* These routines will be needed later */
-#if 0
-static void
-SMBOWFencrypt_ntv2(const unsigned char kr[16],
-                  const struct data_blob *srv_chal,
-                  const struct data_blob *cli_chal, unsigned char resp_buf[16])
-{
-       struct HMACMD5Context ctx;
-
-       hmac_md5_init_limK_to_64(kr, 16, &ctx);
-       hmac_md5_update(srv_chal->data, srv_chal->length, &ctx);
-       hmac_md5_update(cli_chal->data, cli_chal->length, &ctx);
-       hmac_md5_final(resp_buf, &ctx);
-}
-
-static void
-SMBsesskeygen_ntv2(const unsigned char kr[16],
-                  const unsigned char *nt_resp, __u8 sess_key[16])
-{
-       struct HMACMD5Context ctx;
-
-       hmac_md5_init_limK_to_64(kr, 16, &ctx);
-       hmac_md5_update(nt_resp, 16, &ctx);
-       hmac_md5_final((unsigned char *) sess_key, &ctx);
-}
-
-static void
-SMBsesskeygen_ntv1(const unsigned char kr[16],
-                  const unsigned char *nt_resp, __u8 sess_key[16])
-{
-       mdfour((unsigned char *) sess_key, (unsigned char *) kr, 16);
-}
-#endif