int ipfix_decode(anonpacket * p, struct IPFIX *ipfix, struct anonflow *flow)
{
uint16_t i = 0, j = 0, set_length = 0;
unsigned char *payload = NULL;
struct ipfix_template_set *tmp_template = NULL;
struct ipfix_template_record *tmp_record = NULL;
if (!ipfix)
return (-1);
if (!(p->iph))
return (-1);
if (p->data == NULL || p->dsize < sizeof(struct ipfix_header))
return (-1);
if (!(p->udph) && !(p->tcph))
return (-1);
memset(ipfix, 0, sizeof(struct IPFIX));
payload = (unsigned char *)p->data;
ipfix->header = (struct ipfix_header *)payload;
payload += sizeof(struct ipfix_header);
if (ntohs(ipfix->header->length) > p->dsize)
return (-1); // XXX could IPFIX span multiple datagrams?
while ((uint16_t) (payload - p->data) < p->dsize) {
i = ntohs(*(uint16_t *) payload);
if (i == 2) // Template set
{
ipfix->templates =
realloc(ipfix->templates,
(++ipfix->ntemplates) * sizeof(struct ipfix_template_set *));
ipfix->templates[ipfix->ntemplates - 1] =
malloc(sizeof(struct ipfix_template_set));
ipfix->templates[ipfix->ntemplates - 1]->header =
(struct ipfix_set_header *)payload;
i = sizeof(struct ipfix_set_header);
payload += i;
tmp_template = ipfix->templates[ipfix->ntemplates - 1];
tmp_template->nrecords = 0;
tmp_template->records = NULL;
set_length = ntohs(tmp_template->header->length);
while (i < set_length) {
if (*(uint16_t *) payload == 0) { // Padding!
payload =
(unsigned char *)tmp_template->header +
ntohs(tmp_template->header->length);
break;
}
tmp_template->records =
realloc(tmp_template->records,
(++tmp_template->nrecords) *
sizeof(struct ipfix_template_record *));
tmp_template->records[tmp_template->nrecords - 1] =
malloc(sizeof(struct ipfix_template_record));
tmp_template->records[tmp_template->nrecords - 1]->header =
malloc(sizeof(struct ipfix_template_header));
tmp_template->records[tmp_template->nrecords - 1]->header->id =
ntohs(((struct ipfix_template_header *)payload)->id);
tmp_template->records[tmp_template->nrecords - 1]->header->count =
ntohs(((struct ipfix_template_header *)payload)->count);
i += sizeof(struct ipfix_template_header);
payload += sizeof(struct ipfix_template_header);
tmp_record = tmp_template->records[tmp_template->nrecords - 1];
tmp_record->nvendor = tmp_record->nietf = 0;
tmp_record->ietf_fields = NULL;
tmp_record->vendor_fields = NULL;
tmp_record->nfields = ntohs(tmp_record->header->count);
tmp_record->fields =
malloc(tmp_record->nfields * sizeof(unsigned char *));
for (j = 0; j < tmp_record->nfields; j++) {
tmp_record->fields[j] = payload;
if (testBit(*payload, 7)) {
tmp_record->nvendor++;
tmp_record->vendor_fields =
realloc(tmp_record->vendor_fields,
tmp_record->nvendor *
sizeof(struct
ipfix_vendor_field_specifier));
tmp_record->vendor_fields[tmp_record->nvendor -
1].id =
ntohs(*(uint16_t *) payload);
payload += sizeof(uint16_t);
tmp_record->vendor_fields[tmp_record->nvendor -
1].length =
ntohs(*(uint16_t *) payload);
payload += sizeof(uint16_t);
tmp_record->vendor_fields[tmp_record->nvendor -
1].enterprise =
ntohl(*(uint32_t *) payload);
payload += sizeof(uint32_t);
i += sizeof(struct ipfix_vendor_field_specifier);
} else {
tmp_record->nietf++;
tmp_record->ietf_fields =
realloc(tmp_record->ietf_fields,
tmp_record->nietf *
sizeof(struct
ipfix_ietf_field_specifier));
tmp_record->ietf_fields[tmp_record->nietf - 1].id =
ntohs(*(uint16_t *) payload);
payload += sizeof(uint16_t);
tmp_record->ietf_fields[tmp_record->nietf -
1].length =
ntohs(*(uint16_t *) payload);
payload += sizeof(uint16_t);
i += sizeof(struct ipfix_ietf_field_specifier);
}
}
}
// Check against template records with the same ID and replace/insert.
struct ipfix_template_record *tmp = NULL;
for (j = 0; j < tmp_template->nrecords; j++) {
if ((tmp =
flist_remove(flow->ipfix_templates,
tmp_template->records[j]->header->id,
FLIST_LEAVE_DATA)) != NULL) {
// free it.
}
// Insert the new template record.
flist_append(flow->ipfix_templates,
tmp_template->records[j]->header->id,
tmp_template->records[j]);
}
} else if (i == 3) {// Option Template set
} else if (i >= 4 && i <= 255) { // reserved for future use
payload += sizeof(uint16_t);
payload += ntohs(*(uint16_t *) payload);
continue;
} else if (i > 256) { // Data set
ipfix->data =
realloc(ipfix->data,
++(ipfix->ndata) * sizeof(struct ipfix_data_set *));
ipfix->data[ipfix->ndata - 1] = malloc(sizeof(struct ipfix_data_set));
ipfix->data[ipfix->ndata - 1]->header = (struct ipfix_set_header *)payload;
ipfix->data[ipfix->ndata - 1]->nfields = 0;
payload += sizeof(struct ipfix_set_header);
i = sizeof(struct ipfix_set_header);
// If you try debugging this, good luck.
while (i < ntohs(ipfix->data[ipfix->ndata - 1]->header->length)) {
if (*(uint16_t *) payload == 0) { // Padding!
payload =
(unsigned char *)ipfix->data[ipfix->ndata - 1]->header +
ntohs(ipfix->data[ipfix->ndata - 1]->header->length);
break;
}
ipfix->data[ipfix->ndata - 1]->fields =
realloc(ipfix->data[ipfix->ndata - 1]->fields,
++(ipfix->data[ipfix->ndata - 1]->nfields) *
sizeof(unsigned char *));
ipfix->data[ipfix->ndata -
1]->fields[ipfix->data[ipfix->ndata - 1]->nfields - 1] =
payload;
payload +=
((unsigned char)(*payload & (1 << 8))) ? sizeof(struct
ipfix_vendor_field_specifier)
: sizeof(struct ipfix_ietf_field_specifier);
i += ((unsigned char)(*payload & (1 << 8))) ? sizeof(struct
ipfix_vendor_field_specifier)
: sizeof(struct ipfix_ietf_field_specifier);
}
} else
return (-1);
}
return (0);
}
/*
* Decodes a NetFlow v9 packet.
* mfukar
* Jan 12 2006
*/
int netflow_v9_decode(anonpacket * p, struct NETFLOW_V9 *netflow, struct anonflow *flow)
{
int i = 0;
unsigned char *payload = NULL;
int flowsets = 0;
uint16_t flowset_length = 0;
uint16_t int16 = 0;
struct NF9_TEMPLATE_FLOWSET *tmp_template_flowset = NULL;
struct NF9_OPTIONS_TEMPLATE *tmp_options_template = NULL;
if (!netflow)
return (-1);
// Expecting a UDP datagram.
if (!(p->udph))
return (-1);
// We are at least expecting a header.
if (p->data == NULL || p->dsize < 20)
return (-1);
// Initialisations.
memset(netflow, 0, sizeof(struct NETFLOW_V9));
payload = p->data;
netflow->header = (struct NF9_HEADER *)payload;
payload += sizeof(struct NF9_HEADER);
// Now get the flowsets.
for (flowsets = ntohs(netflow->header->count); flowsets >= 0; flowsets--) {
/*
* In most cases (ie. all), the header count field doesn't report
* the correct number of flowsets.
* This ugly piece of code will make sure we don't see any
* "additional" flowsets that in fact don't exist.
*/
if (((uint16_t) (payload - p->data)) >= p->dsize)
return (1);
//Switch on flowset's ID.
int16 = ntohs(*((unsigned short *)payload));
if (int16 == 0) { // Template flowset
struct NF9_TEMPLATE *template_cache = NULL;
// Allocate memory for the new flowset.
netflow->template_flowsets =
realloc(netflow->template_flowsets,
(++netflow->ntemplates) *
sizeof(struct NF9_TEMPLATE_FLOWSET *));
netflow->template_flowsets[netflow->ntemplates - 1] =
malloc(sizeof(struct NF9_TEMPLATE_FLOWSET));
netflow->template_flowsets[netflow->ntemplates - 1]->c =
(struct NF9_FLOWSET_COMMON *)payload;
tmp_template_flowset = netflow->template_flowsets[netflow->ntemplates - 1];
tmp_template_flowset->ntemps = 0;
tmp_template_flowset->templates = 0;
payload += sizeof(struct NF9_FLOWSET_COMMON);
flowset_length = ntohs(tmp_template_flowset->c->length);
int16 = sizeof(struct NF9_FLOWSET_COMMON);
while (int16 + sizeof(uint16_t) < flowset_length) {
template_cache = malloc(sizeof(struct NF9_TEMPLATE));
tmp_template_flowset->templates =
realloc(tmp_template_flowset->templates,
(++tmp_template_flowset->ntemps) *
sizeof(struct NF9_TEMPLATE *));
tmp_template_flowset->templates[tmp_template_flowset->ntemps - 1] =
malloc(sizeof(struct NF9_TEMPLATE));
tmp_template_flowset->templates[tmp_template_flowset->ntemps -
1]->inf =
(struct NF9_TEMPLATE_INFO *)payload;
payload += 2 * sizeof(uint16_t);
int16 += 2 * sizeof(uint16_t);
tmp_template_flowset->templates[tmp_template_flowset->ntemps -
1]->records =
malloc(ntohs
(tmp_template_flowset->
templates[tmp_template_flowset->ntemps -
1]->inf->field_count) *
sizeof(struct NF9_TEMPLATE_RECORD *));
for (i = 0;
i <
ntohs(tmp_template_flowset->
templates[tmp_template_flowset->ntemps -
1]->inf->field_count); i++) {
tmp_template_flowset->templates[tmp_template_flowset->
ntemps - 1]->records[i] =
(struct NF9_TEMPLATE_RECORD *)payload;
payload += sizeof(struct NF9_TEMPLATE_RECORD);
}
int16 +=
ntohs(tmp_template_flowset->
templates[tmp_template_flowset->ntemps -
1]->inf->field_count) *
sizeof(struct NF9_TEMPLATE_RECORD);
template_cache->inf = malloc(sizeof(struct NF9_TEMPLATE_INFO));
template_cache->inf->template_id =
ntohs(tmp_template_flowset->
templates[tmp_template_flowset->ntemps -
1]->inf->template_id);
template_cache->inf->field_count =
ntohs(tmp_template_flowset->
templates[tmp_template_flowset->ntemps -
1]->inf->field_count);
template_cache->records =
malloc(template_cache->inf->field_count *
sizeof(struct NF9_TEMPLATE_RECORD *));
for (i = 0; i < template_cache->inf->field_count; i++) {
template_cache->records[i] =
malloc(sizeof(struct NF9_TEMPLATE_RECORD));
template_cache->records[i]->field_type =
ntohs(tmp_template_flowset->
templates[tmp_template_flowset->ntemps -
1]->records[i]->field_type);
template_cache->records[i]->field_length =
ntohs(tmp_template_flowset->
templates[tmp_template_flowset->ntemps -
1]->records[i]->field_length);
}
/*
* If a template with the same ID already exists,
* replace it with this one.
*/
struct NF9_TEMPLATE *tmp =
flist_remove(flow->nf9_templates,
template_cache->inf->template_id,
FLIST_LEAVE_DATA);
if (tmp != NULL) {
for (i = 0; i < tmp->inf->field_count; i++) {
free(tmp->records[i]);
}
free(tmp->records);
free(tmp->inf);
free(tmp);
}
flist_append(flow->nf9_templates, template_cache->inf->template_id,
template_cache);
}
if (int16 != flowset_length)
payload += sizeof(uint16_t);
} else if (int16 == 1) { // This is an option template flowset.
struct NF9_OPTIONS_TEMPLATE *options = NULL;
// Allocate memory for the new flowset.
netflow->option_templates = realloc(netflow->option_templates,
++(netflow->noptions) *
sizeof(struct NF9_OPTIONS_TEMPLATE *));
netflow->option_templates[netflow->noptions - 1] =
malloc(sizeof(struct NF9_OPTIONS_TEMPLATE));
netflow->option_templates[netflow->noptions - 1]->c =
(struct NF9_FLOWSET_COMMON *)payload;
payload += sizeof(struct NF9_FLOWSET_COMMON);
tmp_options_template = netflow->option_templates[netflow->noptions - 1];
tmp_options_template->inf = malloc(sizeof(struct NF9_OPTIONS_INFO));
tmp_options_template->inf = (struct NF9_OPTIONS_INFO *)payload;
payload += 3 * sizeof(uint16_t);
tmp_options_template->nscopes =
tmp_options_template->inf->option_scope_len /
sizeof(struct NF9_TEMPLATE_RECORD);
tmp_options_template->nopts =
tmp_options_template->inf->option_len /
sizeof(struct NF9_TEMPLATE_RECORD);
// Grab the scope fields.
tmp_options_template->scope_fields =
malloc(tmp_options_template->nscopes *
sizeof(struct NF9_TEMPLATE_RECORD *));
for (i = 0; i < tmp_options_template->nscopes; i++) {
tmp_options_template->scope_fields[i] =
(struct NF9_TEMPLATE_RECORD *)payload;
payload += sizeof(struct NF9_TEMPLATE_RECORD);
}
// ..and the option fields.
tmp_options_template->option_fields =
malloc(tmp_options_template->nopts *
sizeof(struct NF9_TEMPLATE_RECORD *));
for (i = 0; i < tmp_options_template->nopts; i++) {
tmp_options_template->option_fields[i] =
(struct NF9_TEMPLATE_RECORD *)payload;
payload += sizeof(struct NF9_TEMPLATE_RECORD);
}
int16 = sizeof(struct NF9_FLOWSET_COMMON)
+ 3 * sizeof(uint16_t)
+ tmp_options_template->inf->option_scope_len
+ tmp_options_template->inf->option_len;
if (int16 != flowset_length)
payload += sizeof(uint16_t);
// Insert the options template flowset in the list.
options->c = malloc(sizeof(struct NF9_FLOWSET_COMMON));
options->c->flowset_id = ntohs(tmp_options_template->c->flowset_id);
options->c->length = ntohs(tmp_options_template->c->length);
options->inf = malloc(sizeof(struct NF9_OPTIONS_INFO));
options->inf->template_id = tmp_options_template->inf->template_id;
options->inf->option_scope_len =
tmp_options_template->inf->option_scope_len;
options->inf->option_len = tmp_options_template->inf->option_len;
options->scope_fields = malloc(tmp_options_template->inf->option_scope_len);
for (i = 0; i < tmp_options_template->nscopes; i++) {
options->scope_fields[i]->field_type =
ntohs(tmp_options_template->scope_fields[i]->field_type);
options->scope_fields[i]->field_length =
ntohs(tmp_options_template->scope_fields[i]->field_length);
}
options->option_fields = malloc(tmp_options_template->inf->option_len);
for (i = 0; i < tmp_options_template->nopts; i++) {
options->option_fields[i]->field_type =
ntohs(tmp_options_template->option_fields[i]->field_type);
options->option_fields[i]->field_length =
ntohs(tmp_options_template->option_fields[i]->field_length);
}
flist_append(flow->nf9_option_templates, options->inf->template_id,
options);
} else { // This is a data flowset.
netflow->data_flowsets = realloc(netflow->data_flowsets,
++(netflow->ndata) *
sizeof(struct NF9_DATA_FLOWSET *));
netflow->data_flowsets[netflow->ndata - 1] =
malloc(sizeof(struct NF9_DATA_FLOWSET));
netflow->data_flowsets[netflow->ndata - 1]->c =
(struct NF9_FLOWSET_COMMON *)payload;
netflow->data_flowsets[netflow->ndata - 1]->field_values =
payload + sizeof(struct NF9_FLOWSET_COMMON);
payload += ntohs(netflow->data_flowsets[netflow->ndata - 1]->c->length);
}
}
return (1);
}
static void cmd_create_offline_device(char *dev, int format, int pid, int sock)
//Create a new flow
//dev = device
//if = IPC id used to send ack message back to client
{
struct mapiipcbuf buf;
mapidrv *drv, *drv2, *lok;
int err;
int file;
struct client *cl;
char *format_;
long file_size;
//Get file descriptor
buf.mtype = pid;
buf.cmd = SEND_FD;
mapiipc_daemon_write((struct mapiipcbuf *) &buf, sock);
file = mapiipc_read_fd(sock);
//Decide which driver to use
for (drv = drvlist; drv != NULL; drv = drv->next) {
if (drv->format == format) {
DEBUG_CMD(Debug_Message("Using driver %s for %s", drv->name, dev));
break;
}
}
if (drv == NULL) {
DEBUG_CMD(Debug_Message("ERROR: No driver found for %s", dev));
report_error(MAPID_NO_DRIVER, pid, sock);
return;
}
//Calls driver
//First create new "device" for the file
drv2 = malloc(sizeof(mapidrv));
drv2->device = malloc(strlen(dev)+7);
sprintf(drv2->device, "%s@%d", dev, deviceid);
lok=drvlist;
while (lok->next!=NULL)
lok = lok->next;
lok->next = drv2;
drv2->next=NULL;
drv2->handle = drv->handle;
drv2->name = strdup(drv->name);
drv2->format = drv->format;
drv2->devid = -deviceid++;
drv2->offline = 1;
drv2->active = 1;
drv2->description = strdup(drv->description);
drv2->offline_status = DEVICE_SETUP;
mapidrv_add_device = get_drv_funct(drv->handle, "mapidrv_add_device");
err = mapidrv_add_device(dev, file, drv2->devid, gflist,
&drv2->offline_status);
if (err != 0) {
report_error(err, pid, sock);
return;
}
// save a reference to the newly created flow to client's flow list
cl = flist_get(clientlist, pid);
if (cl == NULL) {
cl = (struct client *) malloc(sizeof(struct client));
cl->pid = pid;
cl->sock = sock;
// init the list that holds references to the flows of this client
if ((cl->flowlist = malloc(sizeof(flist_t))) == NULL) {
DEBUG_CMD(Debug_Message(
"ERROR: cmd_create_flow - malloc new client struct: %s",
strerror(errno)));
exit(EXIT_FAILURE);
}
if ((cl->devicelist = malloc(sizeof(flist_t))) == NULL) {
DEBUG_CMD(Debug_Message(
"ERROR: cmd_create_flow - malloc new client struct: %s",
strerror(errno)));
exit(EXIT_FAILURE);
}
flist_init(cl->flowlist);
flist_init(cl->devicelist);
cl->numflows = 0;
flist_append(clientlist, pid, cl);
}
flist_append(cl->devicelist, drv2->devid, drv->handle);
cl->numdevs++;
//Send ack back to user
buf.mtype = pid;
buf.cmd = CREATE_OFFLINE_DEVICE_ACK;
strcpy((char *)buf.data, drv2->device);
buf.fd = -1;
if (format == 0)
format_ = strdup("MFF_PCAP");
else if (format == 1)
format_ = strdup("MFF_RAW");
else if (format == 2)
format_ = strdup("MFF_DAG_ERF");
else if (format == 4)
format_ = strdup("MFF_NAPATECH");
if (log_to_file) {
file_size = acquire_write_lock(log_fd_info);
write_to_file(
log_fd_info,
"MAPID: new offline device was created ( tracefile: %s, format: %s, device name returned: %s ) at ",
dev, format_, buf.data);
write_date(log_fd_info);
write_newline(log_fd_info, "\n");
release_write_lock(log_fd_info, file_size);
}
if (log_to_syslog)
log_message(
"new offline device was created ( tracefile: %s, format: %s, device name returned: %s )",
dev, format_, buf.data);
free(format_);
mapiipc_daemon_write((struct mapiipcbuf *) &buf, sock);
}
int flowdrv_create_flow(const char *dev)
//Create new flow
//dev = device that should be used
{
struct mapiipcbuf qbuf;
flowdescr_t *flow, *tmpflow;
pthread_once(&mapi_is_initialized, (void*)mapi_init);
while(__sync_lock_test_and_set(mapi_lock,1));
if (((*get_numflows)() == 0) && ((*get_totalflows)() > 0) && *minit){ // socket has been closed, re-create it
if(mapiipc_client_init() == -1) {
*local_err = MCOM_INIT_SOCKET_ERROR;
*mapi_lock = 0;
return -1;
}
(*incr_numflows)();
}
else
(*incr_numflows)();
*mapi_lock = 0;
strncpy((char *)qbuf.data,dev,DATA_SIZE);
qbuf.mtype = 1;
qbuf.cmd = CREATE_FLOW;
qbuf.fd = getpid();
qbuf.pid = getpid();
while(__sync_lock_test_and_set(mapi_lock,1));
if (mapiipc_write((struct mapiipcbuf*)&qbuf) < 0)
{
*local_err = MCOM_SOCKET_ERROR;
*mapi_lock = 0;
(*decr_numflows)();
return -1;
}
if (mapiipc_read((struct mapiipcbuf*)&qbuf) < 0)
{
*local_err = MCOM_SOCKET_ERROR;
*mapi_lock = 0;
(*decr_numflows)();
return -1;
}
*mapi_lock = 0;
switch(qbuf.cmd)
{
case CREATE_FLOW_ACK:
tmpflow = flist_get(*flowlist, qbuf.fd);
if (tmpflow != NULL)
{
printf("ERROR: Mapid gave us a fd (%d) which already exist in our lists, exiting [%s:%d]\n",
qbuf.fd, __FILE__, __LINE__);
(*decr_numflows)();
return -1;
}
flow = malloc(sizeof(flowdescr_t));
if (flow == NULL)
{
printf("ERROR: Out of memory [%s:%d]\n", __FILE__, __LINE__);
(*decr_numflows)();
return -1;
}
flow->fd = qbuf.fd;
flow->devtype = (char *) malloc(strlen((char *)qbuf.data) + 1);
flow->flist = malloc(sizeof(flist_t));
flow->shm_base = NULL;
flow->shm_spinlock = NULL;
flow->file = -1; // in case of online flow, assigned to -1
flow->is_connected = 0;
flow->numfd = 0; // initialize number of open file descriptors to zero
flist_init(flow->flist);
strcpy(flow->devtype, (char *)qbuf.data);
flowlist_t *flow_item = malloc(sizeof(flowlist_t));
if (flow_item == NULL)
{
printf("ERROR: Out of memory [%s:%d]\n", __FILE__, __LINE__);
(*decr_numflows)();
return -1;
}
while(__sync_lock_test_and_set(mapi_lock,1));
flow_item->fd = ++(*fd_counter);
flow_item->flowtype = FLOWTYPE_LOCAL;
flow_item->driver = *localdrv; // get_driver ?
flow_item->flowdescr = flow;
flist_append(*flowlist, *fd_counter, flow_item);
(*incr_totalflows)();
*mapi_lock = 0;
return *fd_counter;
/* should probably have a separate error message for ERROR_ACK? */
case ERROR_ACK:
(*decr_numflows)();
*local_err = qbuf.remote_errorcode;
return -1;
default:
(*decr_numflows)();
*local_err = MCOM_UNKNOWN_ERROR;
return -1;
}
}
static void cmd_create_flow(char *device, int pid, uid_t uid, int sock) /*removed id, id==pid here */
//Create a new flow
//dev = device
//if = IPC id used to send ack message back to client
{
struct flow *fl = (struct flow *) malloc(sizeof(struct flow));
struct client *cl;
struct mapiipcbuf buf;
char *devtype;
mapidrv *drv;
int err = 0;
char* dev=device;
long file_size;
fl->id = pid;
fl->fd = ++fdseed;
fl->drv = NULL;
fl->uid = uid;
fl->offline = 0;
if (running_shutdown)
err = MAPI_SHUTTING_DOWN;
//Decide which driver to use
for (drv = drvlist; drv != NULL; drv = drv->next) {
if (drv->device != NULL)
if (strcmp(dev, drv->device) == 0) {
fl->drv = drv;
DEBUG_CMD(Debug_Message("Using driver %s for %s", drv->name,
dev));
break;
}
}
if (fl->drv == NULL) {
DEBUG_CMD(Debug_Message("No driver found for %s", dev));
report_error(MAPID_NO_DRIVER, pid, sock);
free(fl);
return;
}
++flows; //total number of currently registered flows
//Calls driver
if (err == 0) {
mapidrv_create_flow = get_drv_funct(fl->drv->handle,
"mapidrv_create_flow");
err = mapidrv_create_flow(drv->devid, fl->fd, &devtype);
}
if (err != 0) {
/* flow wasn't created */
/* we can't leave the flow in place, but we need it for errno... */
/* cleanup? */
flows--;
report_error(err, pid, sock);
free(fl);
return;
} else {
flist_append(flowlist, fl->fd, fl);
//check if this is the first time we hear from this client
cl = flist_get(clientlist, pid);
if (cl == NULL) {
cl = (struct client *) malloc(sizeof(struct client));
cl->pid = pid;
cl->sock = sock;
// init the list that holds references to the flows of this client
if ((cl->flowlist = malloc(sizeof(flist_t))) == NULL) {
DEBUG_CMD(Debug_Message(
"ERROR: cmd_create_flow - malloc new client struct: %s",
strerror(errno)));
exit(EXIT_FAILURE);
}
flist_init(cl->flowlist);
if ((cl->devicelist = malloc(sizeof(flist_t))) == NULL) {
DEBUG_CMD(Debug_Message(
"ERROR: cmd_create_flow - malloc new client struct: %s",
strerror(errno)));
exit(EXIT_FAILURE);
}
flist_init(cl->devicelist);
cl->numflows = 0;
cl->numdevs = 0;
flist_append(clientlist, pid, cl);
}
// save a reference to the newly created flow to client's flow list
cl->numflows++;
flist_append(cl->flowlist, fl->fd, fl);
//Send ack back to user
buf.mtype = pid;
strcpy((char *)buf.data, devtype);
buf.cmd = CREATE_FLOW_ACK;
buf.fd = fl->fd;
if (log_to_file) {
file_size = acquire_write_lock(log_fd_info);
write_to_file(log_fd_info,
"MAPID: new flow was created ( device: %s, fd: %d ) at ",
device, fl->fd);
write_date(log_fd_info);
write_newline(log_fd_info, "\n");
release_write_lock(log_fd_info, file_size);
}
if (log_to_syslog)
log_message("new flow was created ( device: %s, fd: %d )", device,
fl->fd);
}
mapiipc_daemon_write(&buf, sock);
}