int smb_tree_disconnect(smb_session *s, smb_tid tid) { smb_tree_disconnect_req req; smb_tree_disconnect_resp *resp; smb_message *req_msg; smb_message resp_msg; assert(s != NULL); if( s != NULL) { req_msg = smb_message_new(SMB_CMD_TREE_DISCONNECT); if (!req_msg) return DSM_ERROR_GENERIC; // Packet headers req_msg->packet->header.tid = (uint16_t)tid; // Packet payload req.wct = 0; // Must be 0 req.bct = 0; // Must be 0 SMB_MSG_PUT_PKT(req_msg, req); if (!smb_session_send_msg(s, req_msg)) { smb_message_destroy(req_msg); return DSM_ERROR_NETWORK; } smb_message_destroy(req_msg); if (!smb_session_recv_msg(s, &resp_msg)) return DSM_ERROR_NETWORK; if (!smb_session_check_nt_status(s, &resp_msg)) return DSM_ERROR_NT; resp = (smb_tree_disconnect_resp *)resp_msg.packet->payload; if ((resp->wct != 0) || (resp->bct != 0)) return DSM_ERROR_NETWORK; return DSM_SUCCESS; } return DSM_ERROR_GENERIC; }
static int auth(smb_session *s, const char *domain, const char *user, const char *password) { smb_message *msg = NULL, resp; smb_session_xsec_req req; smb_buffer ntlm; ASN1_TYPE token; int res, der_size = 512; char der[512], err_desc[ASN1_MAX_ERROR_DESCRIPTION_SIZE]; msg = smb_message_new(SMB_CMD_SETUP); if (!msg) return DSM_ERROR_GENERIC; // this struct will be set at the end when we know the payload size SMB_MSG_ADVANCE_PKT(msg, smb_session_xsec_req); asn1_create_element(s->spnego_asn1, "SPNEGO.NegotiationToken", &token); // Select a response message type res = asn1_write_value(token, "", "negTokenResp", 1); if (res != ASN1_SUCCESS) goto error; // Delete all optionnal field except 'ResponseToken' res = asn1_write_value(token, "negTokenResp.negResult", NULL, 0); if (res != ASN1_SUCCESS) goto error; res = asn1_write_value(token, "negTokenResp.supportedMech", NULL, 0); if (res != ASN1_SUCCESS) goto error; res = asn1_write_value(token, "negTokenResp.mechListMIC", NULL, 0); if (res != ASN1_SUCCESS) goto error; smb_ntlmssp_response(s->srv.challenge, s->srv.ts - 4200, domain, domain, user, password, &s->xsec_target, &ntlm); res = asn1_write_value(token, "negTokenResp.responseToken", ntlm.data, ntlm.size); smb_buffer_free(&ntlm); if (res != ASN1_SUCCESS) goto error; res = asn1_der_coding(token, "", der, &der_size, err_desc); if (res != ASN1_SUCCESS) { smb_message_destroy(msg); BDSM_dbg("Encoding error: %s", err_desc); return DSM_ERROR_GENERIC; } smb_message_append(msg, der, der_size); if (msg->cursor % 2) smb_message_put8(msg, 0); smb_message_put_utf16(msg, SMB_OS, strlen(SMB_OS)); smb_message_put16(msg, 0); smb_message_put_utf16(msg, SMB_LANMAN, strlen(SMB_LANMAN)); smb_message_put16(msg, 0); smb_message_put16(msg, 0); // Empty PDC name SMB_MSG_INIT_PKT_ANDX(req); req.wct = 12; req.max_buffer = SMB_SESSION_MAX_BUFFER; req.mpx_count = 16; // XXX ? req.vc_count = 1; req.caps = s->srv.caps; // XXX caps & our_caps_mask req.session_key = s->srv.session_key; req.xsec_blob_size = der_size; req.payload_size = msg->cursor - sizeof(smb_session_xsec_req); SMB_MSG_INSERT_PKT(msg, 0, req); asn1_delete_structure(&token); if (!smb_session_send_msg(s, msg)) { smb_message_destroy(msg); BDSM_dbg("Unable to send Session Setup AndX (NTLMSSP_AUTH) message\n"); return DSM_ERROR_NETWORK; } smb_message_destroy(msg); if (smb_session_recv_msg(s, &resp) == 0) return DSM_ERROR_NETWORK; if (!smb_session_check_nt_status(s, &resp)) return DSM_ERROR_NT; else { smb_session_xsec_resp *r = (smb_session_xsec_resp *)resp.packet->payload; if (r->action & 0x0001) s->guest = true; s->srv.uid = resp.packet->header.uid; s->logged = true; return DSM_SUCCESS; } error: asn1_display_error("smb_session_login auth()", res); smb_message_destroy(msg); return DSM_ERROR_GENERIC; }
int smb_tree_connect(smb_session *s, const char *name, smb_tid *tid) { smb_tree_connect_req req; smb_tree_connect_resp *resp; smb_message resp_msg; smb_message *req_msg; smb_share *share; size_t path_len, utf_path_len; char *path, *utf_path; assert(s != NULL && name != NULL && tid != NULL); if( s != NULL && name != NULL && tid != NULL ) { req_msg = smb_message_new(SMB_CMD_TREE_CONNECT); if (!req_msg) return DSM_ERROR_GENERIC; // Build \\SERVER\Share path from name path_len = strlen(name) + strlen(s->srv.name) + 4; path = alloca(path_len); snprintf(path, path_len, "\\\\%s\\%s", s->srv.name, name); utf_path_len = smb_to_utf16(path, strlen(path) + 1, &utf_path); // Packet headers req_msg->packet->header.tid = 0xffff; // Behavior of libsmbclient smb_message_set_andx_members(req_msg); // Packet payload SMB_MSG_INIT_PKT_ANDX(req); req.wct = 4; req.flags = 0x0c; // (??) req.passwd_len = 1; // Null byte req.bct = utf_path_len + 6 + 1; SMB_MSG_PUT_PKT(req_msg, req); smb_message_put8(req_msg, 0); // Ze null byte password; smb_message_append(req_msg, utf_path, utf_path_len); free(utf_path); smb_message_append(req_msg, "?????", strlen("?????") + 1); if (!smb_session_send_msg(s, req_msg)) { smb_message_destroy(req_msg); return DSM_ERROR_NETWORK; } smb_message_destroy(req_msg); if (!smb_session_recv_msg(s, &resp_msg)) return DSM_ERROR_NETWORK; if (!smb_session_check_nt_status(s, &resp_msg)) return DSM_ERROR_NT; resp = (smb_tree_connect_resp *)resp_msg.packet->payload; share = calloc(1, sizeof(smb_share)); if (!share) return DSM_ERROR_GENERIC; share->tid = resp_msg.packet->header.tid; share->opts = resp->opt_support; share->rights = resp->max_rights; share->guest_rights = resp->guest_rights; smb_session_share_add(s, share); *tid = share->tid; return 0; } return DSM_ERROR_GENERIC; }