void make_reply(dns_question_t *question, char *addr, bool use_compression, dns_record_t *answer)
{
answer->use_compression = use_compression;
if (use_compression) {
answer->cptr = "\xc0\x0c";
} else {
answer->label = question->label;
}
answer->rtype = question->qtype;
answer->rclass = question->qclass;
answer->ttl = 86400;
answer->rdlength = 4;
answer->rdata = encode_ip_address(addr);
}
/****************************************************************************\
* Name : ncs_logmsg_int
*
* Description : This function is use for Message Logging.
*
* Arguments : svc_id : Service ID.
* fmat_id : Format ID.
* str_table_id : String tabel ID.
* category : Message category.
* severity : Message Severity.
* fmat_type : Format type to be used for logging.
*
* Return Values : NCSCC_RC_SUCCESS/NCSCC_RC_FAILURE.
*
* Notes : None.
\*****************************************************************************/
uns32 ncs_logmsg_int(SS_SVC_ID svc_id,
uns32 inst_id,
uns8 fmat_id, uns8 str_table_id, uns32 category, uns8 severity, char *fmat_type, va_list argp)
{
uns32 i = 0, length = 0;
DTA_CB *inst = &dta_cb;
DTSV_MSG *msg;
NCSFL_HDR *hdr;
REG_TBL_ENTRY *svc;
NCS_UBAID *uba = NULL;
uns8 *data;
uns32 send_pri;
int warning_rmval = 0;
/*************************************************************************\
* As different fields of the log-message are encoded, the minimum DTS
* required to understand the message may change.
\*************************************************************************/
uns32 act_dts_ver; /* Active dts's version. */
uns32 min_dts_ver; /* Minimum DTS version that understands message */
DTA_LOG_BUFFER *list = &inst->log_buffer;
DTA_BUFFERED_LOG *buf = NULL;
/* Check if DTA is created. Continue logging if DTA is created */
if (inst->created == FALSE) {
return m_DTA_DBG_SINK_SVC(NCSCC_RC_FAILURE,
"ncs_logmsg: DTA does not exist. First create DTA before logging.", svc_id);
}
m_DTA_LK(&inst->lock);
/*
* Check whether DTS exist. If DTS does not exist then there is no
* point in logging message. Return failure.
* Changed as of 15th June 2006.
* If FLS doesn't exist & number of buffer msgs is more than DTA_BUF_LIMIT
* then drop the message and return failure.
*/
if ((inst->dts_exist == FALSE) && (list->num_of_logs >= DTA_BUF_LIMIT)) {
m_DTA_UNLK(&inst->lock);
return m_DTA_DBG_SINK_SVC(NCSCC_RC_FAILURE,
"ncs_logmsg: DTS does not exist & DTA log buffer is full. Log message is dropped.",
svc_id);
}
/*
* Check whether the Sevice is registered with the DTSv. If not already
* bound return failure.
*/
if (((svc = (REG_TBL_ENTRY *)ncs_patricia_tree_get(&inst->reg_tbl, (const uns8 *)&svc_id)) == NULL)) {
m_DTA_UNLK(&inst->lock);
return NCSCC_RC_FAILURE;
}
#if (DTA_FLOW == 1)
/* Check whether logging is enabled beyond default level for this service
* i.e. INFO or DEBUG levels are enabled or not.
* If logging levels are increased to INFO/DEBUG, don't apply DTA message
* thresholding. Otherwise DTA defines MAX threshold of 2000 messages after
* which all messages will be dropped. In such cases, check the rate of
* logging for such processes.
*/
if (svc->severity_bit_map > 0xFC) {
/* Don't apply thresholding of messages here */
} else {
/* Else apply thresholding */
if (inst->msg_count > DTA_MAX_THRESHOLD) {
m_DTA_UNLK(&inst->lock);
warning_rmval =
m_DTA_DBG_SINK(NCSCC_RC_FAILURE,
"ncs_logmsg: DTA queued msgs exceeds 2000. Message will be dropped.");
return NCSCC_RC_FAILURE;
}
}
/* Drop INFO/DEBUG messages at source during congestion */
if ((inst->dts_congested == TRUE) && (severity < NCSFL_SEV_NOTICE)) {
m_DTA_UNLK(&inst->lock);
return NCSCC_RC_FAILURE;
}
#endif
msg = m_MMGR_ALLOC_DTSV_MSG;
if (msg == NULL) {
m_DTA_UNLK(&inst->lock);
return m_DTA_DBG_SINK(NCSCC_RC_FAILURE, "ncs_logmsg: Memory allocation failer for DTSV_MSG");
}
memset(msg, '\0', sizeof(DTSV_MSG));
hdr = &msg->data.data.msg.log_msg.hdr;
hdr->category = category;
hdr->severity = severity;
hdr->fmat_id = fmat_id;
hdr->ss_id = svc_id;
hdr->inst_id = inst_id;
hdr->str_table_id = str_table_id;
/* Apply the filter Policies. If the logging is disabled
* then return success. We are returning success here since it may
* possible that logging is disabled by user.
*/
if (dta_svc_reg_log_en(svc, &msg->data.data.msg.log_msg) == NCSCC_RC_FAILURE) {
m_DTA_UNLK(&inst->lock);
m_MMGR_FREE_DTSV_MSG(msg);
return NCSCC_RC_SUCCESS;
}
if (NCSCC_RC_SUCCESS != dta_copy_octets(&hdr->fmat_type, fmat_type, (uns16)(1 + strlen(fmat_type)))) {
m_DTA_UNLK(&inst->lock);
m_MMGR_FREE_DTSV_MSG(msg);
return m_DTA_DBG_SINK(NCSCC_RC_FAILURE, "ncs_logmsg_int: Copy octet failed.");
}
/* Flexlog Agent fills in the TIME STAMP value */
m_GET_MSEC_TIME_STAMP(&hdr->time.seconds, &hdr->time.millisecs);
msg->vrid = inst->vrid;
msg->msg_type = DTA_LOG_DATA;
uba = &msg->data.data.msg.log_msg.uba;
/* act_dts_ver needs to be recorded before inst->lock is unlocked */
act_dts_ver = inst->act_dts_ver;
min_dts_ver = 1; /* DTS should be at least this version to interpret the
encoded message. This directly determines the
message format vesion */
m_DTA_UNLK(&inst->lock);
memset(uba, '\0', sizeof(NCS_UBAID));
if (ncs_enc_init_space(uba) != NCSCC_RC_SUCCESS) {
m_MMGR_FREE_OCT(hdr->fmat_type);
m_MMGR_FREE_DTSV_MSG(msg);
return m_DTA_DBG_SINK_SVC(NCSCC_RC_FAILURE, "ncs_logmsg: Unable to init user buff", svc_id);
}
while (fmat_type[i] != '\0') {
switch (fmat_type[i]) {
case 'T':
{
break;
}
case 'I':
{
uns32 idx;
idx = m_NCSFL_MAKE_IDX((uns32)str_table_id, (uns32)va_arg(argp, uns32));
data = ncs_enc_reserve_space(uba, sizeof(uns32));
if (data == NULL)
goto reserve_error;
ncs_encode_32bit(&data, idx);
ncs_enc_claim_space(uba, sizeof(uns32));
break;
}
case 'L':
{
data = ncs_enc_reserve_space(uba, sizeof(uns32));
if (data == NULL)
goto reserve_error;
ncs_encode_32bit(&data, va_arg(argp, uns32));
ncs_enc_claim_space(uba, sizeof(uns32));
break;
}
case 'C':
{
char *str = va_arg(argp, char *);
if (NULL == str) {
if (uba->start != NULL)
m_MMGR_FREE_BUFR_LIST(uba->start);
m_MMGR_FREE_OCT(hdr->fmat_type);
m_MMGR_FREE_DTSV_MSG(msg);
return m_DTA_DBG_SINK_SVC(NCSCC_RC_FAILURE,
"ncs_logmsg: NULL string passed for format type 'C'",
svc_id);
}
length = strlen(str) + 1;
if (length > (DTS_MAX_SIZE_DATA * 3)) {
if (uba->start != NULL)
m_MMGR_FREE_BUFR_LIST(uba->start);
m_MMGR_FREE_OCT(hdr->fmat_type);
m_MMGR_FREE_DTSV_MSG(msg);
return m_DTA_DBG_SINK_SVC(NCSCC_RC_FAILURE,
"ncs_logmsg: Can not log string with more than 1536 characters",
svc_id);
}
data = ncs_enc_reserve_space(uba, sizeof(uns32));
if (data == NULL)
goto reserve_error;
ncs_encode_32bit(&data, length);
ncs_enc_claim_space(uba, sizeof(uns32));
ncs_encode_n_octets_in_uba(uba, (uns8 *)str, length);
break;
}
case 'M':
{
data = ncs_enc_reserve_space(uba, sizeof(uns16));
if (data == NULL)
goto reserve_error;
ncs_encode_16bit(&data, (uns16)va_arg(argp, uns32));
ncs_enc_claim_space(uba, sizeof(uns16));
break;
}
case 'D':
{
NCSFL_MEM mem_d = va_arg(argp, NCSFL_MEM);
if (mem_d.len > DTS_MAX_SIZE_DATA)
mem_d.len = DTS_MAX_SIZE_DATA;
/* Versioning & 64-bit compatibility changes - Encode the msg
* for format 'D' after checking the version of the current
* Active DTS.
* If Active DTS has MDS version 1 and DTA arch 64-bit then,
* encode 32 bits with reserved bit-pattern 0x6464.
* Else, if DTS has MDS version 2, then encode 64-bits of the
* address.
* Also fill DTA_LOG_MSG structure with the DTS version as seen
* while encoding.
*/
/* The 'D' message is encoded at version 1 or 2 based on
whether DTS is at version 1 or higher respectively.
*/
/* Check for compatibility with receiving DTS version
and set the minimum DTS version required */
if (act_dts_ver == 1) {
/* Compatible DTS. Update minimum DTS version required */
if (min_dts_ver < 1)
min_dts_ver = 1;
data = ncs_enc_reserve_space(uba, (sizeof(uns16) + sizeof(uns32)));
if (data == NULL)
goto reserve_error;
ncs_encode_16bit(&data, mem_d.len);
if (sizeof(inst) == 8) {
/* Attempt to print 64-bit address on 32-bit DTS.
* Print pre-defined bit pattern to indicate error.
*/
ncs_encode_32bit(&data, (uns32)0x6464);
} else if (sizeof(inst) == 4) {
/* Do it the old way */
ncs_encode_32bit(&data, NCS_PTR_TO_UNS32_CAST(mem_d.addr));
}
ncs_enc_claim_space(uba, (sizeof(uns16) + sizeof(uns32)));
}
/* Act DTS on version 2 or higher , then encode all 64-bits */
else {
/* Compatible DTS. Update minimum DTS version required */
if (min_dts_ver < 2)
min_dts_ver = 2;
data = ncs_enc_reserve_space(uba, (sizeof(uns16) + sizeof(uns64)));
if (data == NULL)
goto reserve_error;
ncs_encode_16bit(&data, mem_d.len);
ncs_encode_64bit(&data, (uns64)(long)mem_d.addr);
ncs_enc_claim_space(uba, (sizeof(uns16) + sizeof(uns64)));
}
ncs_encode_n_octets_in_uba(uba, (uns8 *)mem_d.dump, (uns32)mem_d.len);
break;
}
case 'P':
{
NCSFL_PDU pdu = va_arg(argp, NCSFL_PDU);
if (pdu.len > DTS_MAX_SIZE_DATA)
pdu.len = DTS_MAX_SIZE_DATA;
data = ncs_enc_reserve_space(uba, sizeof(uns16));
if (data == NULL)
goto reserve_error;
ncs_encode_16bit(&data, pdu.len);
ncs_enc_claim_space(uba, sizeof(uns16));
ncs_encode_n_octets_in_uba(uba, (uns8 *)pdu.dump, (uns32)pdu.len);
break;
}
case 'A':
{
encode_ip_address(uba, va_arg(argp, NCS_IP_ADDR));
break;
}
case 'S':
{
data = ncs_enc_reserve_space(uba, sizeof(uns8));
if (data == NULL)
goto reserve_error;
ncs_encode_8bit(&data, (uns8)va_arg(argp, uns32));
ncs_enc_claim_space(uba, sizeof(uns8));
break;
}
/* Added code for handling float values */
case 'F':
{
char str[DTS_MAX_DBL_DIGITS] = "";
int num_chars = sprintf(str, "%f", va_arg(argp, double));
if (num_chars == 0) {
warning_rmval =
m_DTA_DBG_SINK(NCSCC_RC_FAILURE,
"ncs_logmsg: Float to string conversion gives NULL");
goto reserve_error;
}
length = strlen(str) + 1;
data = ncs_enc_reserve_space(uba, sizeof(uns32));
if (data == NULL)
goto reserve_error;
ncs_encode_32bit(&data, length);
ncs_enc_claim_space(uba, sizeof(uns32));
ncs_encode_n_octets_in_uba(uba, (uns8 *)str, length);
break;
}
case 'N':
{
char str[DTS_MAX_DBL_DIGITS] = "";
int num_chars = 0;
/* Check for compatibility with receiving DTS version
and set the minimum DTS version required */
if (act_dts_ver == 1) {
/* Incompatible DTS */
goto reserve_error;
} else {
/* Compatible DTS. Update minimum DTS version required */
if (min_dts_ver < 2)
min_dts_ver = 2;
}
num_chars = sprintf(str, "%lld", va_arg(argp, long long));
if (num_chars == 0) {
warning_rmval =
m_DTA_DBG_SINK(NCSCC_RC_FAILURE,
"ncs_logmsg: long long to string conversion gives NULL");
goto reserve_error;
}
length = strlen(str) + 1;
data = ncs_enc_reserve_space(uba, sizeof(uns32));
if (data == NULL)
goto reserve_error;
ncs_encode_32bit(&data, length);
ncs_enc_claim_space(uba, sizeof(uns32));
ncs_encode_n_octets_in_uba(uba, (uns8 *)str, length);
break;
}
case 'U':
{
char str[DTS_MAX_DBL_DIGITS] = "";
int num_chars = 0;
/* Check for compatibility with receiving DTS version
and set the minimum DTS version required */
if (act_dts_ver == 1) {
/* Incompatible DTS */
goto reserve_error;
} else {
/* Compatible DTS. Update minimum DTS version required */
if (min_dts_ver < 2)
min_dts_ver = 2;
}
num_chars = sprintf(str, "%llu", va_arg(argp, unsigned long long));
if (num_chars == 0) {
warning_rmval =
m_DTA_DBG_SINK(NCSCC_RC_FAILURE,
"ncs_logmsg: unsigned long long to string conversion gives NULL");
goto reserve_error;
}
length = strlen(str) + 1;
data = ncs_enc_reserve_space(uba, sizeof(uns32));
if (data == NULL)
goto reserve_error;
ncs_encode_32bit(&data, length);
ncs_enc_claim_space(uba, sizeof(uns32));
ncs_encode_n_octets_in_uba(uba, (uns8 *)str, length);
break;
}
case 'X':
{
char str[DTS_MAX_DBL_DIGITS] = "";
int num_chars = 0;
/* Check for compatibility with receiving DTS version
and set the minimum DTS version required */
if (act_dts_ver == 1) {
/* Incompatible DTS */
goto reserve_error;
} else {
/* Compatible DTS. Update minimum DTS version required */
if (min_dts_ver < 2)
min_dts_ver = 2;
}
num_chars = sprintf(str, "Ox%016llx", va_arg(argp, long long));
if (num_chars == 0) {
warning_rmval =
m_DTA_DBG_SINK(NCSCC_RC_FAILURE,
"ncs_logmsg: 64bit hex to string conversion gives NULL");
goto reserve_error;
}
length = strlen(str) + 1;
data = ncs_enc_reserve_space(uba, sizeof(uns32));
if (data == NULL)
goto reserve_error;
ncs_encode_32bit(&data, length);
ncs_enc_claim_space(uba, sizeof(uns32));
ncs_encode_n_octets_in_uba(uba, (uns8 *)str, length);
break;
}
default:
{
if (uba->start != NULL)
m_MMGR_FREE_BUFR_LIST(uba->start);
m_MMGR_FREE_OCT(hdr->fmat_type);
m_MMGR_FREE_DTSV_MSG(msg);
return m_DTA_DBG_SINK_SVC(NCSCC_RC_FAILURE,
"ncs_logmsg: Format Type Not accounted for", svc_id);
}
}
i++;
}
/* Buffer log messgages if DTS is not up _or_ registration is not confirmed */
if ((inst->dts_exist == FALSE) || (svc->log_msg == FALSE)) {
m_DTA_LK(&inst->lock);
buf = m_MMGR_ALLOC_DTA_BUFFERED_LOG;
if (!buf) {
if (msg->data.data.msg.log_msg.uba.start != NULL)
m_MMGR_FREE_BUFR_LIST(msg->data.data.msg.log_msg.uba.start);
m_MMGR_FREE_OCT(msg->data.data.msg.log_msg.hdr.fmat_type);
if (0 != msg)
m_MMGR_FREE_DTSV_MSG(msg);
m_DTA_UNLK(&inst->lock);
return m_DTA_DBG_SINK(NCSCC_RC_FAILURE, "Failed to allocate memory for log buffering");
}
/* Set the msg format version based on how it is encoded above.
Usually it will be 1, because during DTS initialization, until
active DTS shows up (i.e until inst->dts_exist becomes TRUE)
active DTS version is assumed to be 1.
*/
msg->data.data.msg.msg_fmat_ver = min_dts_ver;
memset(buf, '\0', sizeof(DTA_BUFFERED_LOG));
buf->buf_msg = msg;
buf->next = NULL;
if (!list->head)
list->head = buf;
else
list->tail->next = buf;
list->tail = buf;
list->num_of_logs++;
m_DTA_UNLK(&inst->lock);
} else {
send_pri = NCS_IPC_PRIORITY_LOW;
/* Set the msg format version to final value of min_dts_ver */
msg->data.data.msg.msg_fmat_ver = min_dts_ver;
/* Smik - We don't send the msg to MDS but to DTA's msgbox */
if (m_DTA_SND_MSG(&gl_dta_mbx, msg, send_pri) != NCSCC_RC_SUCCESS) {
if (uba->start != NULL)
m_MMGR_FREE_BUFR_LIST(uba->start);
m_MMGR_FREE_OCT(hdr->fmat_type);
m_MMGR_FREE_DTSV_MSG(msg);
/*if (dta_mds_async_send(&msg, inst) != NCSCC_RC_SUCCESS) */
return m_DTA_DBG_SINK(NCSCC_RC_FAILURE, "ncs_logmsg: send to DTA msgbox failed");
}
}
return NCSCC_RC_SUCCESS;
reserve_error:
if (uba->start != NULL)
m_MMGR_FREE_BUFR_LIST(uba->start);
m_MMGR_FREE_OCT(hdr->fmat_type);
m_MMGR_FREE_DTSV_MSG(msg);
return m_DTA_DBG_SINK(NCSCC_RC_FAILURE, "ncs_logmsg: Unable to reserve space in encode");
}
