#include "asn1/OpenPDU.h"
#include "asn1/ClosePDU.h"
-#include "asn1/SMUX-PDUs.h"
+#include "asn1/RReqPDU.h"
#include "asn1/OBJECT_IDENTIFIER.h"
#include "asn1/ber_decoder.h"
#include "asn1/der_encoder.h"
#include "snmp.h"
#include "stg/common.h"
+bool WaitPackets(int sd);
+
class SNMP_AGENT_CREATOR
{
private:
};
~SNMP_AGENT_CREATOR()
{
+ printfd(__FILE__, "SNMP_AGENT_CREATOR::~SNMP_AGENT_CREATOR()\n");
delete snmpAgent;
};
return sac.GetPlugin();
}
-int output(const void * buffer, size_t size, void * data)
-{
-int * fd = static_cast<int *>(data);
-return write(*fd, buffer, size);
-}
-
int SendOpenPDU(int fd)
{
const char * description = "Stg SNMP Agent";
int oid[] = {1, 3, 6, 1, 4, 1, 9363, 1, 5, 2, 1, 1};
asn_enc_rval_t error;
-OpenPDU msg;
+OpenPDU_t msg;
+
+memset(&msg, 0, sizeof(msg));
msg.present = OpenPDU_PR_simple;
-asn_long2INTEGER(&msg.choice.simple.version, 1);
+asn_long2INTEGER(&msg.choice.simple.version, SimpleOpen__version_version_1);
OBJECT_IDENTIFIER_set_arcs(&msg.choice.simple.identity,
oid,
sizeof(oid[0]),
- sizeof(oid));
-OCTET_STRING_fromBuf(&msg.choice.simple.description,
- description,
- sizeof(description));
-OCTET_STRING_fromBuf(&msg.choice.simple.password,
- "",
- 0);
+ 7);
+OCTET_STRING_fromString(&msg.choice.simple.description,
+ description);
+OCTET_STRING_fromString(&msg.choice.simple.password,
+ "");
-error = der_encode(&asn_DEF_OpenPDU, &msg, output, &fd);
+char buffer[1024];
+error = der_encode_to_buffer(&asn_DEF_OpenPDU, &msg, buffer, sizeof(buffer));
if (error.encoded == -1)
{
}
else
{
- printfd(__FILE__, "OpenPDU encoded successfully");
+ write(fd, buffer, error.encoded);
+ printfd(__FILE__, "OpenPDU encoded successfully to %d bytes\n", error.encoded);
}
return 0;
}
int SendClosePDU(int fd)
{
-ClosePDU msg = ClosePDU_goingDown;
+ClosePDU_t msg;
+
+memset(&msg, 0, sizeof(msg));
+asn_long2INTEGER(&msg, ClosePDU_goingDown);
+
+char buffer[1024];
asn_enc_rval_t error;
-error = der_encode(&asn_DEF_ClosePDU, &msg, output, &fd);
+error = der_encode_to_buffer(&asn_DEF_ClosePDU, &msg, buffer, sizeof(buffer));
if (error.encoded == -1)
{
}
else
{
- printfd(__FILE__, "ClosePDU encoded successfully");
+ write(fd, buffer, error.encoded);
+ printfd(__FILE__, "ClosePDU encoded successfully\n");
+ }
+return 0;
+}
+
+int SendRReqPDU(int fd)
+{
+int oid[] = {1, 3, 6, 1, 4, 1, 9363, 1};
+asn_enc_rval_t error;
+RReqPDU_t msg;
+
+memset(&msg, 0, sizeof(msg));
+
+msg.priority = 0;
+asn_long2INTEGER(&msg.operation, RReqPDU__operation_readOnly);
+OBJECT_IDENTIFIER_set_arcs(&msg.subtree,
+ oid,
+ sizeof(oid[0]),
+ 8);
+
+char buffer[1024];
+error = der_encode_to_buffer(&asn_DEF_RReqPDU, &msg, buffer, sizeof(buffer));
+
+if (error.encoded == -1)
+ {
+ printfd(__FILE__, "Could not encode RReqPDU (at %s)\n",
+ error.failed_type ? error.failed_type->name : "unknown");
+ return -1;
+ }
+else
+ {
+ write(fd, buffer, error.encoded);
+ printfd(__FILE__, "RReqPDU encoded successfully to %d bytes\n", error.encoded);
}
return 0;
}
-int RecvSMUXPDUs(int fd)
+SMUX_PDUs_t * RecvSMUXPDUs(int fd)
{
-char buffer[8192];
-SMUX_PDUs * pdus;
+char buffer[1024];
+SMUX_PDUs_t * pdus = NULL;
+
+memset(buffer, 0, sizeof(buffer));
size_t length = read(fd, buffer, sizeof(buffer));
+if (length < 1)
+ return NULL;
asn_dec_rval_t error;
error = ber_decode(0, &asn_DEF_SMUX_PDUs, (void **)&pdus, buffer, length);
if(error.code != RC_OK)
{
printfd(__FILE__, "Failed to decode PDUs at byte %ld\n",
(long)error.consumed);
- return -1;
+ return NULL;
}
-switch (pdus->present)
- {
- case SMUX_PDUs_PR_NOTHING:
- printfd(__FILE__, "PDUs: nothing\n");
- break;
- case SMUX_PDUs_PR_open:
- printfd(__FILE__, "PDUs: open\n");
- break;
- case SMUX_PDUs_PR_close:
- printfd(__FILE__, "PDUs: close\n");
- break;
- case SMUX_PDUs_PR_registerRequest:
- printfd(__FILE__, "PDUs: registerRequest\n");
- break;
- case SMUX_PDUs_PR_registerResponse:
- printfd(__FILE__, "PDUs: registerResponse\n");
- break;
- case SMUX_PDUs_PR_pdus:
- printfd(__FILE__, "PDUs: pdus\n");
- break;
- case SMUX_PDUs_PR_commitOrRollback:
- printfd(__FILE__, "PDUs: commitOrRollback\n");
- break;
- default:
- printfd(__FILE__, "PDUs: default\n");
- }
-asn_fprint(stderr, &asn_DEF_SMUX_PDUs, pdus);
-return 0;
+return pdus;
}
int ParseIntInRange(const std::string & str,
sock(-1)
{
pthread_mutex_init(&mutex, NULL);
+
+handlers[SMUX_PDUs_PR_close] = &SNMP_AGENT::CloseHandler;
+handlers[SMUX_PDUs_PR_registerResponse] = &SNMP_AGENT::RegisterResponseHandler;
+handlers[SMUX_PDUs_PR_pdus] = &SNMP_AGENT::PDUsHandler;
+handlers[SMUX_PDUs_PR_commitOrRollback] = &SNMP_AGENT::CommitOrRollbackHandler;
}
SNMP_AGENT::~SNMP_AGENT()
{
+printfd(__FILE__, "SNMP_AGENT::~SNMP_AGENT()\n");
pthread_mutex_destroy(&mutex);
}
int SNMP_AGENT::Stop()
{
+printfd(__FILE__, "SNMP_AGENT::Stop() - Before\n");
running = false;
-close(sock);
-
if (!stopped)
{
//5 seconds to thread stops itself
//after 5 seconds waiting thread still running. now killing it
if (!stopped)
{
+ printfd(__FILE__, "SNMP_AGENT::Stop() - failed to stop thread, killing it\n");
if (pthread_kill(thread, SIGINT))
{
errorStr = "Cannot kill thread.";
- printfd(__FILE__, "Cannot kill thread\n");
+ printfd(__FILE__, "SNMP_AGENT::Stop() - Cannot kill thread\n");
return -1;
}
- printfd(__FILE__, "SNMP_AGENT killed Run\n");
+ printfd(__FILE__, "SNMP_AGENT::Stop() - killed Run\n");
}
}
+pthread_join(thread, NULL);
+
+close(sock);
+
+printfd(__FILE__, "SNMP_AGENT::Stop() - After\n");
return 0;
}
void SNMP_AGENT::Run()
{
SendOpenPDU(sock);
+SendRReqPDU(sock);
running = true;
+stopped = false;
+printfd(__FILE__, "SNMP_AGENT::Run() - Before\n");
while(running)
{
- RecvSMUXPDUs(sock);
- struct timespec ts = {1, 0};
- nanosleep(&ts, NULL);
+ if (WaitPackets(sock))
+ {
+ SMUX_PDUs_t * pdus = RecvSMUXPDUs(sock);
+ if (pdus)
+ DispatchPDUs(pdus);
+ }
+ if (!running)
+ break;
}
+printfd(__FILE__, "SNMP_AGENT::Run() - After\n");
SendClosePDU(sock);
stopped = true;
}
return false;
}
+
+bool WaitPackets(int sd)
+{
+fd_set rfds;
+FD_ZERO(&rfds);
+FD_SET(sd, &rfds);
+
+struct timeval tv;
+tv.tv_sec = 0;
+tv.tv_usec = 500000;
+
+int res = select(sd + 1, &rfds, NULL, NULL, &tv);
+if (res == -1) // Error
+ {
+ if (errno != EINTR)
+ {
+ printfd(__FILE__, "Error on select: '%s'\n", strerror(errno));
+ }
+ return false;
+ }
+
+if (res == 0) // Timeout
+ {
+ return false;
+ }
+
+return true;
+}
+
+bool SNMP_AGENT::DispatchPDUs(const SMUX_PDUs_t * pdus)
+{
+std::map<SMUX_PDUs_PR, SNMPPacketHandler>::iterator it;
+it = handlers.find(pdus->present);
+if (it != handlers.end())
+ {
+ return (this->*(it->second))(pdus);
+ }
+else
+ {
+ switch (pdus->present)
+ {
+ case SMUX_PDUs_PR_NOTHING:
+ printfd(__FILE__, "PDUs: nothing\n");
+ break;
+ case SMUX_PDUs_PR_open:
+ printfd(__FILE__, "PDUs: open\n");
+ break;
+ case SMUX_PDUs_PR_registerRequest:
+ printfd(__FILE__, "PDUs: registerRequest\n");
+ break;
+ default:
+ printfd(__FILE__, "PDUs: undefined\n");
+ }
+ asn_fprint(stderr, &asn_DEF_SMUX_PDUs, pdus);
+ }
+return false;
+}
+
+bool SNMP_AGENT::CloseHandler(const SMUX_PDUs_t * pdus)
+{
+printfd(__FILE__, "SNMP_AGENT::CloseHandler()\n");
+asn_fprint(stderr, &asn_DEF_SMUX_PDUs, pdus);
+return false;
+}
+
+bool SNMP_AGENT::RegisterResponseHandler(const SMUX_PDUs_t * pdus)
+{
+printfd(__FILE__, "SNMP_AGENT::RegisterResponseHandler()\n");
+asn_fprint(stderr, &asn_DEF_SMUX_PDUs, pdus);
+return false;
+}
+
+bool SNMP_AGENT::PDUsHandler(const SMUX_PDUs_t * pdus)
+{
+printfd(__FILE__, "SNMP_AGENT::PDUsHandler()\n");
+asn_fprint(stderr, &asn_DEF_SMUX_PDUs, pdus);
+return false;
+}
+
+bool SNMP_AGENT::CommitOrRollbackHandler(const SMUX_PDUs_t * pdus)
+{
+printfd(__FILE__, "SNMP_AGENT::CommitOrRollbackHandler()\n");
+asn_fprint(stderr, &asn_DEF_SMUX_PDUs, pdus);
+return false;
+}
git.stg.codes / stg.git / commitdiff