diff options
Diffstat (limited to 'source3/rpc_server/srv_util.c')
| -rw-r--r-- | source3/rpc_server/srv_util.c | 35 |
1 files changed, 31 insertions, 4 deletions
diff --git a/source3/rpc_server/srv_util.c b/source3/rpc_server/srv_util.c index 51df42cdff..161f845af3 100644 --- a/source3/rpc_server/srv_util.c +++ b/source3/rpc_server/srv_util.c @@ -154,6 +154,33 @@ int make_dom_gids(char *gids_str, DOM_GID **ppgids) return count; } +static void NTLMSSPcalc_p( pipes_struct *p, unsigned char *data, int len) +{ + unsigned char *hash = p->ntlmssp_hash; + unsigned char index_i = hash[256]; + unsigned char index_j = hash[257]; + int ind; + + for( ind = 0; ind < len; ind++) + { + unsigned char tc; + unsigned char t; + + index_i++; + index_j += hash[index_i]; + + tc = hash[index_i]; + hash[index_i] = hash[index_j]; + hash[index_j] = tc; + + t = hash[index_i] + hash[index_j]; + data[ind] = data[ind] ^ hash[t]; + } + + hash[256] = index_i; + hash[257] = index_j; +} + /******************************************************************* turns a DCE/RPC request into a DCE/RPC reply @@ -252,7 +279,7 @@ BOOL create_rpc_reply(pipes_struct *p, if (auth_seal) { crc32 = crc32_calc_buffer(data_len, data); - NTLMSSPcalc(p->ntlmssp_hash, (uchar*)data, data_len); + NTLMSSPcalc_p(p, (uchar*)data, data_len); } if (auth_seal || auth_verify) @@ -268,7 +295,7 @@ BOOL create_rpc_reply(pipes_struct *p, make_rpc_auth_ntlmssp_chk(&p->ntlmssp_chk, NTLMSSP_SIGN_VERSION, crc32, p->ntlmssp_seq_num++); smb_io_rpc_auth_ntlmssp_chk("auth_sign", &(p->ntlmssp_chk), &p->rverf, 0); auth_data = mem_data(&p->rverf.data, 4); - NTLMSSPcalc(p->ntlmssp_hash, (uchar*)auth_data, 12); + NTLMSSPcalc_p(p, (uchar*)auth_data, 12); } } @@ -633,7 +660,7 @@ static BOOL api_pipe_auth_process(pipes_struct *p, prs_struct *pd) { char *data = mem_data(&pd->data, pd->offset); DEBUG(5,("api_pipe_auth_process: data %d\n", pd->offset)); - NTLMSSPcalc(p->ntlmssp_hash, (uchar*)data, data_len); + NTLMSSPcalc_p(p, (uchar*)data, data_len); crc32 = crc32_calc_buffer(data_len, data); } @@ -650,7 +677,7 @@ static BOOL api_pipe_auth_process(pipes_struct *p, prs_struct *pd) { char *req_data = mem_data(&pd->data, pd->offset + 4); DEBUG(5,("api_pipe_auth_process: auth %d\n", pd->offset + 4)); - NTLMSSPcalc(p->ntlmssp_hash, (uchar*)req_data, 12); + NTLMSSPcalc_p(p, (uchar*)req_data, 12); smb_io_rpc_auth_ntlmssp_chk("auth_sign", &(p->ntlmssp_chk), pd, 0); if (!rpc_auth_ntlmssp_chk(&(p->ntlmssp_chk), crc32, |