/* * snmpstatus.c - send snmp GET requests to a network entity. * */ /*********************************************************************** Copyright 1988, 1989, 1991, 1992 by Carnegie Mellon University All Rights Reserved Permission to use, copy, modify, and distribute this software and its documentation for any purpose and without fee is hereby granted, provided that the above copyright notice appear in all copies and that both that copyright notice and this permission notice appear in supporting documentation, and that the name of CMU not be used in advertising or publicity pertaining to distribution of the software without specific, written prior permission. CMU DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL CMU BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. ******************************************************************/ #include #if HAVE_STDLIB_H #include #endif #if HAVE_UNISTD_H #include #endif #if HAVE_STRING_H #include #else #include #endif #include #if HAVE_NETINET_IN_H #include #endif #include #include #if TIME_WITH_SYS_TIME # ifdef WIN32 # include # else # include # endif # include #else # if HAVE_SYS_TIME_H # include # else # include # endif #endif #if HAVE_SYS_SELECT_H #include #endif #if HAVE_WINSOCK_H #include #else #include #endif #if HAVE_ARPA_INET_H #include #endif #include "asn1.h" #include "snmp_api.h" #include "snmp_impl.h" #include "snmp_client.h" #include "mib.h" #include "snmp.h" #include "system.h" #include "snmp_parse_args.h" oid objid_sysDescr[] = {1, 3, 6, 1, 2, 1, 1, 1, 0}; int length_sysDescr = sizeof(objid_sysDescr)/sizeof(oid); oid objid_sysUpTime[] = {1, 3, 6, 1, 2, 1, 1, 3, 0}; int length_sysUpTime = sizeof(objid_sysUpTime)/sizeof(oid); oid objid_ifOperStatus[] = {1, 3, 6, 1, 2, 1, 2, 2, 1, 8}; int length_ifOperStatus = sizeof(objid_ifOperStatus)/sizeof(oid); oid objid_ifInUCastPkts[] = {1, 3, 6, 1, 2, 1, 2, 2, 1, 11}; int length_ifInUCastPkts = sizeof(objid_ifInUCastPkts)/sizeof(oid); oid objid_ifInNUCastPkts[] = {1, 3, 6, 1, 2, 1, 2, 2, 1, 12}; int length_ifInNUCastPkts = sizeof(objid_ifInNUCastPkts)/sizeof(oid); oid objid_ifOutUCastPkts[] = {1, 3, 6, 1, 2, 1, 2, 2, 1, 17}; int length_ifOutUCastPkts = sizeof(objid_ifOutUCastPkts)/sizeof(oid); oid objid_ifOutNUCastPkts[] = {1, 3, 6, 1, 2, 1, 2, 2, 1, 18}; int length_ifOutNUCastPkts = sizeof(objid_ifOutNUCastPkts)/sizeof(oid); oid objid_ipInReceives[] = {1, 3, 6, 1, 2, 1, 4, 3, 0}; int length_ipInReceives = sizeof(objid_ipInReceives)/sizeof(oid); oid objid_ipOutRequests[] = {1, 3, 6, 1, 2, 1, 4, 10, 0}; int length_ipOutRequests = sizeof(objid_ipOutRequests)/sizeof(oid); void main __P((int, char **)); char *uptime_string __P((u_long, char *)); void usage __P((void)) { fprintf(stderr,"Usage:\n snmpstatus "); snmp_parse_args_usage(stderr); fprintf(stderr,"\n\n"); snmp_parse_args_descriptions(stderr); } char *uptime_string(timeticks, buf) register u_long timeticks; char *buf; { int seconds, minutes, hours, days; timeticks /= 100; days = timeticks / (60 * 60 * 24); timeticks %= (60 * 60 * 24); hours = timeticks / (60 * 60); timeticks %= (60 * 60); minutes = timeticks / 60; seconds = timeticks % 60; if (days == 0){ sprintf(buf, "%d:%02d:%02d", hours, minutes, seconds); } else if (days == 1) { sprintf(buf, "%d day, %d:%02d:%02d", days, hours, minutes, seconds); } else { sprintf(buf, "%d days, %d:%02d:%02d", days, hours, minutes, seconds); } return buf; } void main(argc, argv) int argc; char *argv[]; { struct snmp_session session, *ss; struct snmp_pdu *pdu, *response; struct variable_list *vars; char name[MAX_NAME_LEN]; char *sysdescr = NULL; u_long uptime = 0; int status; int ipin = 0, ipout = 0, ipackets = 0, opackets = 0; int good_var; int down_interfaces = 0; char buf[40]; int interfaces; int count; /* get the common command line arguments */ snmp_parse_args(argc, argv, &session); SOCK_STARTUP; /* open an SNMP session */ snmp_synch_setup(&session); ss = snmp_open(&session); if (ss == NULL){ snmp_perror("snmpstatus"); SOCK_CLEANUP; exit(1); } strcpy(name, "No System Description Available"); /* create PDU for GET request and add object names to request */ pdu = snmp_pdu_create(SNMP_MSG_GET); snmp_add_null_var(pdu, objid_sysDescr, length_sysDescr); snmp_add_null_var(pdu, objid_sysUpTime, length_sysUpTime); snmp_add_null_var(pdu, objid_ipInReceives, length_ipInReceives); snmp_add_null_var(pdu, objid_ipOutRequests, length_ipOutRequests); /* do the request */ retry: status = snmp_synch_response(ss, pdu, &response); if (status == STAT_SUCCESS){ if (response->errstat == SNMP_ERR_NOERROR){ for(vars = response->variables; vars; vars = vars->next_variable){ if (vars->name_length == length_sysDescr && !memcmp(objid_sysDescr, vars->name, sizeof(objid_sysDescr))){ sysdescr = malloc(vars->val_len+1); memcpy(sysdescr, vars->val.string, vars->val_len); sysdescr[vars->val_len] = '\0'; } if (vars->name_length == length_sysUpTime && !memcmp(objid_sysUpTime, vars->name, sizeof(objid_sysUpTime))){ uptime = *vars->val.integer; } if (vars->name_length == length_ipInReceives && !memcmp(objid_ipInReceives, vars->name, sizeof(objid_ipInReceives))){ ipin = *vars->val.integer; } if (vars->name_length == length_ipOutRequests && !memcmp(objid_ipOutRequests, vars->name, sizeof(objid_ipOutRequests))){ ipout = *vars->val.integer; } } } else { fprintf(stderr, "Error in packet.\nReason: %s\n", snmp_errstring(response->errstat)); if (response->errstat == SNMP_ERR_NOSUCHNAME){ fprintf(stderr, "This name doesn't exist: "); for(count = 1, vars = response->variables; vars && count != response->errindex; vars = vars->next_variable, count++) ; if (vars) fprint_objid(stderr, vars->name, vars->name_length); fprintf(stderr, "\n"); } if ((pdu = snmp_fix_pdu(response, SNMP_MSG_GET)) != NULL) goto retry; } } else if (status == STAT_TIMEOUT){ fprintf(stderr,"Timeout: No Response from %s\n", session.peername); SOCK_CLEANUP; exit(1); } else { /* status == STAT_ERROR */ snmp_perror("snmpstatus"); SOCK_CLEANUP; exit(2); } printf("[%s]=>[%s] Up: %s\n", inet_ntoa(response->address.sin_addr), sysdescr, uptime_string(uptime, buf)); if (response) snmp_free_pdu(response); /* create PDU for GET request and add object names to request */ pdu = snmp_pdu_create(SNMP_MSG_GETNEXT); snmp_add_null_var(pdu, objid_ifOperStatus, length_ifOperStatus); snmp_add_null_var(pdu, objid_ifInUCastPkts, length_ifInUCastPkts); snmp_add_null_var(pdu, objid_ifInNUCastPkts, length_ifInNUCastPkts); snmp_add_null_var(pdu, objid_ifOutUCastPkts, length_ifOutUCastPkts); snmp_add_null_var(pdu, objid_ifOutNUCastPkts, length_ifOutNUCastPkts); /*?? note: this code is not quite complete */ good_var = 5; interfaces = 0; while(good_var == 5){ good_var = 0; status = snmp_synch_response(ss, pdu, &response); if (status == STAT_SUCCESS){ if (response->errstat == SNMP_ERR_NOERROR){ pdu = snmp_pdu_create(SNMP_MSG_GETNEXT); for(vars = response->variables; vars; vars = vars->next_variable){ if (vars->name_length >= length_ifOperStatus && !memcmp(objid_ifOperStatus, vars->name, sizeof(objid_ifOperStatus))){ if (*vars->val.integer != MIB_IFSTATUS_UP) down_interfaces++; snmp_add_null_var(pdu, vars->name, vars->name_length); good_var++; } else if (vars->name_length >= length_ifInUCastPkts && !memcmp(objid_ifInUCastPkts, vars->name, sizeof(objid_ifInUCastPkts))){ ipackets += *vars->val.integer; snmp_add_null_var(pdu, vars->name, vars->name_length); good_var++; } else if (vars->name_length >= length_ifInNUCastPkts && !memcmp(objid_ifInNUCastPkts, vars->name, sizeof(objid_ifInNUCastPkts))){ ipackets += *vars->val.integer; snmp_add_null_var(pdu, vars->name, vars->name_length); good_var++; } else if (vars->name_length >= length_ifOutUCastPkts && !memcmp(objid_ifOutUCastPkts, vars->name, sizeof(objid_ifOutUCastPkts))){ opackets += *vars->val.integer; snmp_add_null_var(pdu, vars->name, vars->name_length); good_var++; } else if (vars->name_length >= length_ifOutNUCastPkts && !memcmp(objid_ifOutNUCastPkts, vars->name, sizeof(objid_ifOutNUCastPkts))){ opackets += *vars->val.integer; snmp_add_null_var(pdu, vars->name, vars->name_length); good_var++; } } if (good_var == 5) interfaces++; } else { fprintf(stderr, "Error in packet.\nReason: %s\n", snmp_errstring(response->errstat)); if (response->errstat == SNMP_ERR_NOSUCHNAME){ fprintf(stderr, "This name doesn't exist: "); for(count = 1, vars = response->variables; vars && count != response->errindex; vars = vars->next_variable, count++) ; if (vars) fprint_objid(stderr, vars->name, vars->name_length); fprintf(stderr, "\n"); } } } else if (status == STAT_TIMEOUT){ fprintf(stderr,"Timeout: No Response from %s\n", session.peername); } else { /* status == STAT_ERROR */ snmp_perror("snmpstatus"); } if (response) snmp_free_pdu(response); } printf("Interfaces: %d, Recv/Trans packets: %d/%d | IP: %d/%d\n", interfaces, ipackets, opackets, ipin, ipout); if (down_interfaces > 0){ printf("%d interface%s down!\n", down_interfaces, down_interfaces > 1 ? "s are": " is" ); } snmp_close(ss); SOCK_CLEANUP; exit (0); }