diff options
Diffstat (limited to 'agent/mibgroup/disman/nslookup/lookupCtlTable.c')
| -rw-r--r-- | agent/mibgroup/disman/nslookup/lookupCtlTable.c | 1415 |
1 files changed, 1415 insertions, 0 deletions
diff --git a/agent/mibgroup/disman/nslookup/lookupCtlTable.c b/agent/mibgroup/disman/nslookup/lookupCtlTable.c new file mode 100644 index 0000000..3048999 --- /dev/null +++ b/agent/mibgroup/disman/nslookup/lookupCtlTable.c @@ -0,0 +1,1415 @@ +/* + *Copyright(c)2004,Cisco URP imburses and Network Information Center in Beijing University of Posts and Telecommunications researches. + * + *All right reserved + * + *File Name:lookupCtlTable.c + *File Description:Rows of the lookupCtlTable MIB add , delete and read.Rows of lookupResultsTable + * MIB add and delete. + * + *Current Version:1.0 + *Author:ChenJing + *Date:2004.8.20 + */ + +/* + * This should always be included first before anything else + */ +#include <net-snmp/net-snmp-config.h> +#include <net-snmp/net-snmp-features.h> +#include <net-snmp/net-snmp-includes.h> +#include <net-snmp/agent/net-snmp-agent-includes.h> + +#ifndef NETSNMP_NO_WRITE_SUPPORT +netsnmp_feature_require(header_complex_find_entry) +#endif /* NETSNMP_NO_WRITE_SUPPORT */ + +#include <arpa/inet.h> +#include <netdb.h> + +#include "lookupCtlTable.h" +#include "lookupResultsTable.h" +#include "header_complex.h" + +#ifndef INETADDRESSTYPE_ENUMS +#define INETADDRESSTYPE_ENUMS + +#define INETADDRESSTYPE_UNKNOWN 0 +#define INETADDRESSTYPE_IPV4 1 +#define INETADDRESSTYPE_IPV6 2 +#define INETADDRESSTYPE_IPV4Z 3 +#define INETADDRESSTYPE_IPV6Z 4 +#define INETADDRESSTYPE_DNS 16 + +#endif /* INETADDRESSTYPE_ENUMS */ + +/* + *For discontinuity checking. + */ + +oid lookupCtlTable_variables_oid[] = + { 1, 3, 6, 1, 2, 1, 82, 1, 3 }; + + +#ifndef NETSNMP_NO_WRITE_SUPPORT +struct variable2 lookupCtlTable_variables[] = { + /* + * magic number , variable type , ro/rw , callback fn , L, oidsuffix + */ + {COLUMN_LOOKUPCTLTARGETADDRESSTYPE, ASN_INTEGER, NETSNMP_OLDAPI_RWRITE, + var_lookupCtlTable, 2, {1, 3}}, + {COLUMN_LOOKUPCTLTARGETADDRESS, ASN_OCTET_STR, NETSNMP_OLDAPI_RWRITE, + var_lookupCtlTable, 2, {1, 4}}, + {COLUMN_LOOKUPCTLOPERSTATUS, ASN_INTEGER, NETSNMP_OLDAPI_RONLY, + var_lookupCtlTable, 2, {1, 5}}, + {COLUMN_LOOKUPCTLTIME, ASN_UNSIGNED, NETSNMP_OLDAPI_RONLY, + var_lookupCtlTable, 2, {1, 6}}, + {COLUMN_LOOKUPCTLRC, ASN_INTEGER, NETSNMP_OLDAPI_RONLY, + var_lookupCtlTable, 2, {1, 7}}, + {COLUMN_LOOKUPCTLROWSTATUS, ASN_INTEGER, NETSNMP_OLDAPI_RWRITE, + var_lookupCtlTable, 2, {1, 8}} +}; +#else /* !NETSNMP_NO_WRITE_SUPPORT */ +struct variable2 lookupCtlTable_variables[] = { + /* + * magic number , variable type , ro/rw , callback fn , L, oidsuffix + */ + {COLUMN_LOOKUPCTLTARGETADDRESSTYPE, ASN_INTEGER, NETSNMP_OLDAPI_RONLY, + var_lookupCtlTable, 2, {1, 3}}, + {COLUMN_LOOKUPCTLTARGETADDRESS, ASN_OCTET_STR, NETSNMP_OLDAPI_RONLY, + var_lookupCtlTable, 2, {1, 4}}, + {COLUMN_LOOKUPCTLOPERSTATUS, ASN_INTEGER, NETSNMP_OLDAPI_RONLY, + var_lookupCtlTable, 2, {1, 5}}, + {COLUMN_LOOKUPCTLTIME, ASN_UNSIGNED, NETSNMP_OLDAPI_RONLY, + var_lookupCtlTable, 2, {1, 6}}, + {COLUMN_LOOKUPCTLRC, ASN_INTEGER, NETSNMP_OLDAPI_RONLY, + var_lookupCtlTable, 2, {1, 7}}, + {COLUMN_LOOKUPCTLROWSTATUS, ASN_INTEGER, NETSNMP_OLDAPI_RONLY, + var_lookupCtlTable, 2, {1, 8}} +}; +#endif /* !NETSNMP_NO_WRITE_SUPPORT */ + + +/* + * global storage of our data, saved in and configured by header_complex() + */ + +struct header_complex_index *lookupCtlTableStorage = NULL; +struct header_complex_index *lookupResultsTableStorage = NULL; + +int modify_lookupCtlTime(struct lookupTable_data *thedata, unsigned long val); +int modify_lookupCtlOperStatus(struct lookupTable_data *thedata, long val); +int modify_lookupCtlRc(struct lookupTable_data *thedata, long val); + +void +init_lookupCtlTable(void) +{ + DEBUGMSGTL(("lookupCtlTable", "initializing... ")); + /* + * register ourselves with the agent to handle our mib tree + */ + REGISTER_MIB("lookupCtlTable", lookupCtlTable_variables, variable2, + lookupCtlTable_variables_oid); + + + /* + * register our config handler(s) to deal with registrations + */ + snmpd_register_config_handler("lookupCtlTable", parse_lookupCtlTable, + NULL, NULL); + + /* + * we need to be called back later to store our data + */ + snmp_register_callback(SNMP_CALLBACK_LIBRARY, SNMP_CALLBACK_STORE_DATA, + store_lookupCtlTable, NULL); + + DEBUGMSGTL(("lookupCtlTable", "done.\n")); +} + +struct lookupTable_data * +create_lookupTable_data(void) +{ + struct lookupTable_data *StorageNew = NULL; + StorageNew = SNMP_MALLOC_STRUCT(lookupTable_data); + if (StorageNew == NULL) { + snmp_log(LOG_ERR, "Out in memory in nslookup-mib/create_lookupTable_date\n"); + exit(1); + } + StorageNew->lookupCtlTargetAddress = strdup(""); + StorageNew->lookupCtlTargetAddressLen = 0; + StorageNew->lookupCtlOperStatus = 2L; + StorageNew->lookupCtlTime = 0; + StorageNew->storagetype = ST_NONVOLATILE; + return StorageNew; +} + +/* + * lookupCtlTable_add(): adds a structure node to our data set + */ +int +lookupCtlTable_add(struct lookupTable_data *thedata) +{ + netsnmp_variable_list *vars = NULL; + + DEBUGMSGTL(("lookupCtlTable", "adding data... ")); + /* + * add the index variables to the varbind list, which is + * used by header_complex to index the data + */ + snmp_varlist_add_variable(&vars, NULL, 0, ASN_OCTET_STR, + (char *) thedata->lookupCtlOwnerIndex, + thedata->lookupCtlOwnerIndexLen); + snmp_varlist_add_variable(&vars, NULL, 0, ASN_OCTET_STR, + (char *) thedata->lookupCtlOperationName, + thedata->lookupCtlOperationNameLen); + + + if (header_complex_add_data(&lookupCtlTableStorage, vars, thedata) == + NULL) { + return SNMPERR_GENERR; + } + DEBUGMSGTL(("lookupCtlTable", "registered an entry\n")); + vars = NULL; + + DEBUGMSGTL(("lookupCtlTable", "done.\n")); + return SNMPERR_SUCCESS; +} + +int +lookupResultsTable_add(struct lookupTable_data *thedata) +{ + netsnmp_variable_list *vars_list = NULL; + struct lookupResultsTable_data *p = NULL; + p = thedata->ResultsTable; + if (thedata->ResultsTable != NULL) + do { + snmp_varlist_add_variable(&vars_list, NULL, 0, ASN_OCTET_STR, + (char *) p->lookupCtlOwnerIndex, + p->lookupCtlOwnerIndexLen); + snmp_varlist_add_variable(&vars_list, NULL, 0, ASN_OCTET_STR, + (char *) p->lookupCtlOperationName, + p->lookupCtlOperationNameLen); + snmp_varlist_add_variable(&vars_list, NULL, 0, ASN_UNSIGNED, + (char *) &p->lookupResultsIndex, + sizeof(p->lookupResultsIndex)); + + DEBUGMSGTL(("lookupResultsTable", "adding data... ")); + /* + * add the index variables to the varbind list, which is + * used by header_complex to index the data + */ + + if (header_complex_add_data + (&lookupResultsTableStorage, vars_list, p) == NULL) { + return SNMPERR_GENERR; + } + + DEBUGMSGTL(("lookupResultsTable", "out finished\n")); + vars_list = NULL; + p = p->next; + } while (p != NULL); + + DEBUGMSGTL(("lookupResultsTable", "done.\n")); + return SNMPERR_SUCCESS; +} + +void +lookupCtlTable_cleaner(struct header_complex_index *thestuff) +{ + struct header_complex_index *hciptr = NULL; + struct lookupTable_data *StorageDel = NULL; + DEBUGMSGTL(("lookupCtlTable", "cleanerout ")); + for (hciptr = thestuff; hciptr != NULL; hciptr = hciptr->next) { + StorageDel = + header_complex_extract_entry(&lookupCtlTableStorage, hciptr); + if (StorageDel != NULL) { + free(StorageDel->lookupCtlOwnerIndex); + StorageDel->lookupCtlOwnerIndex = NULL; + free(StorageDel->lookupCtlOperationName); + StorageDel->lookupCtlOperationName = NULL; + free(StorageDel->lookupCtlTargetAddress); + StorageDel->lookupCtlTargetAddress = NULL; + free(StorageDel); + StorageDel = NULL; + + } + DEBUGMSGTL(("lookupCtlTable", "cleaner ")); + } +} + +/* + * parse_lookupCtlTable(): + * parses .conf file entries needed to configure the mib. + */ +void +parse_lookupCtlTable(const char *token, char *line) +{ + size_t tmpint; + struct lookupTable_data *StorageTmp = SNMP_MALLOC_STRUCT(lookupTable_data); + + DEBUGMSGTL(("lookupCtlTable", "parsing config... ")); + + + if (StorageTmp == NULL) { + config_perror("malloc failure"); + return; + } + + + line = + read_config_read_data(ASN_OCTET_STR, line, + &StorageTmp->lookupCtlOwnerIndex, + &StorageTmp->lookupCtlOwnerIndexLen); + if (StorageTmp->lookupCtlOwnerIndex == NULL) { + config_perror("invalid specification for lookupCtlOwnerIndex"); + return; + } + + line = + read_config_read_data(ASN_OCTET_STR, line, + &StorageTmp->lookupCtlOperationName, + &StorageTmp->lookupCtlOperationNameLen); + if (StorageTmp->lookupCtlOperationName == NULL) { + config_perror("invalid specification for lookupCtlOperationName"); + return; + } + + line = + read_config_read_data(ASN_INTEGER, line, + &StorageTmp->lookupCtlTargetAddressType, + &tmpint); + + line = + read_config_read_data(ASN_OCTET_STR, line, + &StorageTmp->lookupCtlTargetAddress, + &StorageTmp->lookupCtlTargetAddressLen); + if (StorageTmp->lookupCtlTargetAddress == NULL) { + config_perror("invalid specification for lookupCtlTargetAddress"); + return; + } + + line = + read_config_read_data(ASN_INTEGER, line, + &StorageTmp->lookupCtlOperStatus, &tmpint); + + line = + read_config_read_data(ASN_UNSIGNED, line, + &StorageTmp->lookupCtlTime, &tmpint); + + line = + read_config_read_data(ASN_INTEGER, line, + &StorageTmp->lookupCtlRc, &tmpint); + + line = + read_config_read_data(ASN_INTEGER, line, + &StorageTmp->lookupCtlRowStatus, &tmpint); + + + StorageTmp->storagetype = ST_NONVOLATILE; + lookupCtlTable_add(StorageTmp); + /* lookupCtlTable_cleaner(lookupCtlTableStorage); */ + + DEBUGMSGTL(("lookupCtlTable", "done.\n")); +} + + + +/* + * store_lookupCtlTable(): + * stores .conf file entries needed to configure the mib. + */ +int +store_lookupCtlTable(int majorID, int minorID, void *serverarg, + void *clientarg) +{ + char line[SNMP_MAXBUF]; + char *cptr; + size_t tmpint; + struct lookupTable_data *StorageTmp; + struct header_complex_index *hcindex; + + DEBUGMSGTL(("lookupCtlTable", "storing data... ")); + + for (hcindex = lookupCtlTableStorage; hcindex != NULL; + hcindex = hcindex->next) { + StorageTmp = (struct lookupTable_data *) hcindex->data; + + if (StorageTmp->storagetype != ST_READONLY) { + memset(line, 0, sizeof(line)); + strcat(line, "lookupCtlTable "); + cptr = line + strlen(line); + + cptr = + read_config_store_data(ASN_OCTET_STR, cptr, + &StorageTmp->lookupCtlOwnerIndex, + &StorageTmp-> + lookupCtlOwnerIndexLen); + cptr = + read_config_store_data(ASN_OCTET_STR, cptr, + &StorageTmp->lookupCtlOperationName, + &StorageTmp-> + lookupCtlOperationNameLen); + cptr = + read_config_store_data(ASN_INTEGER, cptr, + &StorageTmp-> + lookupCtlTargetAddressType, + &tmpint); + cptr = + read_config_store_data(ASN_OCTET_STR, cptr, + &StorageTmp->lookupCtlTargetAddress, + &StorageTmp-> + lookupCtlTargetAddressLen); + + cptr = + read_config_store_data(ASN_INTEGER, cptr, + &StorageTmp->lookupCtlOperStatus, + &tmpint); + cptr = + read_config_store_data(ASN_UNSIGNED, cptr, + &StorageTmp->lookupCtlTime, + &tmpint); + cptr = + read_config_store_data(ASN_INTEGER, cptr, + &StorageTmp->lookupCtlRc, &tmpint); + cptr = + read_config_store_data(ASN_INTEGER, cptr, + &StorageTmp->lookupCtlRowStatus, + &tmpint); + snmpd_store_config(line); + } + } + DEBUGMSGTL(("lookupCtlTable", "done.\n")); + return SNMPERR_SUCCESS; +} + + + + +/* + * var_lookupCtlTable(): + * Handle this table separately from the scalar value case. + * The workings of this are basically the same as for var_mteObjectsTable above. + */ +unsigned char * +var_lookupCtlTable(struct variable *vp, + oid * name, + size_t *length, + int exact, size_t *var_len, WriteMethod ** write_method) +{ + struct lookupTable_data *StorageTmp = NULL; + *write_method = NULL; + + /* + * this assumes you have registered all your data properly + */ + if ((StorageTmp = + header_complex(lookupCtlTableStorage, vp, name, length, exact, + var_len, write_method)) == NULL) { + if (vp->magic == COLUMN_LOOKUPCTLROWSTATUS) + *write_method = write_lookupCtlRowStatus; + return NULL; + } + + /* + * this is where we do the value assignments for the mib results. + */ + switch (vp->magic) { + case COLUMN_LOOKUPCTLTARGETADDRESSTYPE: +#ifndef NETSNMP_NO_WRITE_SUPPORT + *write_method = write_lookupCtlTargetAddressType; +#endif /* !NETSNMP_NO_WRITE_SUPPORT */ + *var_len = sizeof(StorageTmp->lookupCtlTargetAddressType); + return (u_char *) & StorageTmp->lookupCtlTargetAddressType; + + case COLUMN_LOOKUPCTLTARGETADDRESS: +#ifndef NETSNMP_NO_WRITE_SUPPORT + *write_method = write_lookupCtlTargetAddress; +#endif /* !NETSNMP_NO_WRITE_SUPPORT */ + *var_len = (StorageTmp->lookupCtlTargetAddressLen); + return (u_char *) StorageTmp->lookupCtlTargetAddress; + + case COLUMN_LOOKUPCTLOPERSTATUS: + *var_len = sizeof(StorageTmp->lookupCtlOperStatus); + return (u_char *) & StorageTmp->lookupCtlOperStatus; + + case COLUMN_LOOKUPCTLTIME: + *var_len = sizeof(StorageTmp->lookupCtlTime); + return (u_char *) & StorageTmp->lookupCtlTime; + + case COLUMN_LOOKUPCTLRC: + *var_len = sizeof(StorageTmp->lookupCtlRc); + return (u_char *) & StorageTmp->lookupCtlRc; + + case COLUMN_LOOKUPCTLROWSTATUS: +#ifndef NETSNMP_NO_WRITE_SUPPORT + *write_method = write_lookupCtlRowStatus; +#endif /* !NETSNMP_NO_WRITE_SUPPORT */ + *var_len = sizeof(StorageTmp->lookupCtlRowStatus); + return (u_char *) & StorageTmp->lookupCtlRowStatus; + + default: + ERROR_MSG(""); + } + return NULL; +} + + +static struct lookupResultsTable_data * +add_result(struct lookupTable_data *item, int index, + int iatype, const void *data, size_t data_len) +{ + struct lookupResultsTable_data *temp; + temp = SNMP_MALLOC_STRUCT(lookupResultsTable_data); + if (temp == NULL) { + snmp_log(LOG_ERR, "Out of memory in nslookup-mib/run_lookup\n"); + return NULL; + } + temp->lookupResultsIndex = index; + temp->next = NULL; + + temp->lookupCtlOwnerIndex = malloc(item->lookupCtlOwnerIndexLen + 1); + if (temp->lookupCtlOwnerIndex == NULL) { + snmp_log(LOG_ERR, "Out of memory in nslookup-mib/run_lookup\n"); + free(temp); + return NULL; + } + memcpy(temp->lookupCtlOwnerIndex, + item->lookupCtlOwnerIndex, + item->lookupCtlOwnerIndexLen + 1); + temp->lookupCtlOwnerIndex[item->lookupCtlOwnerIndexLen] = '\0'; + temp->lookupCtlOwnerIndexLen = item->lookupCtlOwnerIndexLen; + + temp->lookupCtlOperationName = malloc(item->lookupCtlOperationNameLen + 1); + if (temp->lookupCtlOperationName == NULL) { + snmp_log(LOG_ERR, "Out of memory in nslookup-mib/run_lookup\n"); + free(temp->lookupCtlOwnerIndex); + free(temp); + return NULL; + } + memcpy(temp->lookupCtlOperationName, + item->lookupCtlOperationName, + item->lookupCtlOperationNameLen + 1); + temp->lookupCtlOperationName[item->lookupCtlOperationNameLen] = '\0'; + temp->lookupCtlOperationNameLen = item->lookupCtlOperationNameLen; + + temp->lookupResultsAddressType = iatype; + temp->lookupResultsAddress = malloc(data_len + 1); + memcpy(temp->lookupResultsAddress, data, data_len); + temp->lookupResultsAddress[data_len] = '\0'; + temp->lookupResultsAddressLen = data_len; + if (!item->ResultsTable) + item->ResultsTable = temp; + + return temp; +} + +void +run_lookup(struct lookupTable_data *item) +{ + long addressType; + char *address = NULL; + size_t addresslen; + struct lookupResultsTable_data *current = NULL; + struct lookupResultsTable_data *temp = NULL; + int i = 0, n = 1; + + struct timeval tpstart, tpend; + unsigned long timeuse, timeuse4 = 0, timeuse6 = 0; + + if (item == NULL) + return; + + addressType = (long) item->lookupCtlTargetAddressType; + addresslen = (size_t) item->lookupCtlTargetAddressLen; + address = (char *) malloc(addresslen + 1); + memcpy(address, item->lookupCtlTargetAddress, addresslen + 1); + address[addresslen] = '\0'; + + if (addressType == INETADDRESSTYPE_IPV4) { + struct in_addr addr_in; + struct hostent *lookup; + + if (!inet_aton(address, &addr_in)) { + DEBUGMSGTL(("lookupResultsTable", "Invalid argument: %s\n", + address)); + modify_lookupCtlRc(item, 99); + return; + } + + netsnmp_get_monotonic_clock(&tpstart); + lookup = netsnmp_gethostbyaddr(&addr_in, sizeof(addr_in), AF_INET); + netsnmp_get_monotonic_clock(&tpend); + timeuse = 1000000 * (tpend.tv_sec - tpstart.tv_sec) + + tpend.tv_usec - tpstart.tv_usec; + timeuse /= 1000; + modify_lookupCtlTime(item, timeuse); + modify_lookupCtlOperStatus(item, 3L); + + if (lookup == NULL) { + DEBUGMSGTL(("lookupCtlTable", + "Can't get a network host entry for ipv4 address: %s\n", + address)); + modify_lookupCtlRc(item, h_errno); + return; + } else { + modify_lookupCtlRc(item, 0L); + if (lookup->h_name != NULL) { + current = temp = add_result(item, n, INETADDRESSTYPE_DNS, + lookup->h_name, strlen(lookup->h_name)); + n = n + 1; + } + + i = 0; + while (lookup->h_aliases[i]) { + temp = add_result(item, n, INETADDRESSTYPE_DNS, + lookup->h_aliases[i], strlen(lookup->h_aliases[i])); + current->next = temp; + current = temp; + i = i + 1; + n = n + 1; + } + } + + if (item->ResultsTable != NULL) + if (lookupResultsTable_add(item) != SNMPERR_SUCCESS) + DEBUGMSGTL(("lookupResultsTable", + "registered an entry error\n")); + SNMP_FREE(address); + return; + } + + else if (addressType == INETADDRESSTYPE_DNS) { + struct hostent *lookup; +#if HAVE_GETADDRINFO + int res; + struct addrinfo *ais; + struct addrinfo hints = { 0, AF_INET6, SOCK_DGRAM }; +#endif + + netsnmp_get_monotonic_clock(&tpstart); + lookup = netsnmp_gethostbyname(address); + netsnmp_get_monotonic_clock(&tpend); + timeuse4 = 1000000 * (tpend.tv_sec - tpstart.tv_sec) + + tpend.tv_usec - tpstart.tv_usec; + if (lookup == NULL) { + DEBUGMSGTL(("lookupCtlTable", + "Can't get a network host entry for %s\n", + address)); + modify_lookupCtlRc(item, h_errno); + } else { + while (lookup->h_addr_list[i]) { + char buf[64]; + int buflen; + + inet_ntop(lookup->h_addrtype, lookup->h_addr_list[i], buf, sizeof(buf)); + buflen = strlen(buf); + switch (lookup->h_addrtype) { + case AF_INET: + temp = add_result(item, n, INETADDRESSTYPE_IPV4, buf, buflen); + break; + case AF_INET6: + temp = add_result(item, n, INETADDRESSTYPE_IPV6, buf, buflen); + break; + default: + snmp_log(LOG_ERR, "nslookup-mib/run_lookup: Unknown address type %d\n", lookup->h_addrtype); + temp = add_result(item, n, INETADDRESSTYPE_UNKNOWN, "", 0); + break; + } + DEBUGMSGTL(("lookupCtlTable", "Adding %d %s\n", n, buf)); + + if (n == 1) + item->ResultsTable = temp; + else + current->next = temp; + current = temp; + n = n + 1; + i = i + 1; + } + } + +#if HAVE_GETADDRINFO + netsnmp_get_monotonic_clock(&tpstart); + res = netsnmp_getaddrinfo(address, NULL, &hints, &ais); + netsnmp_get_monotonic_clock(&tpend); + timeuse6 = 1000000 * (tpend.tv_sec - tpstart.tv_sec) + + tpend.tv_usec - tpstart.tv_usec; + + if (res != 0) { + DEBUGMSGTL(("lookupCtlTable", + "Can't get a ipv6 network host entry for %s\n", + address)); + modify_lookupCtlRc(item, res); + } else { + struct addrinfo *aip = ais; + while (aip) { + char buf[64]; + int buflen; + + switch (aip->ai_family) { + case AF_INET: + inet_ntop(aip->ai_family, + &((struct sockaddr_in *)aip->ai_addr)->sin_addr, + buf, sizeof(buf)); + buflen = strlen(buf); + temp = add_result(item, n, INETADDRESSTYPE_IPV4, buf, buflen); + break; + case AF_INET6: + inet_ntop(aip->ai_family, + &((struct sockaddr_in6 *)aip->ai_addr)->sin6_addr, + buf, sizeof(buf)); + buflen = strlen(buf); + temp = add_result(item, n, INETADDRESSTYPE_IPV6, buf, buflen); + break; + default: + snmp_log(LOG_ERR, "nslookup-mib/run_lookup: Unknown address type %d\n", aip->ai_family); + temp = add_result(item, n, INETADDRESSTYPE_UNKNOWN, "", 0); + break; + } + DEBUGMSGTL(("lookupCtlTable", "Adding %d %s\n", n, buf)); + + if (n == 1) + item->ResultsTable = temp; + else + current->next = temp; + current = temp; + n = n + 1; + aip = aip->ai_next; + } + freeaddrinfo(ais); + } +#elif HAVE_GETHOSTBYNAME2 + netsnmp_get_monotonic_clock(&tpstart); + lookup = gethostbyname2(address, AF_INET6); + netsnmp_get_monotonic_clock(&tpend); + timeuse6 = 1000000 * (tpend.tv_sec - tpstart.tv_sec) + + tpend.tv_usec - tpstart.tv_usec; + + if (lookup == NULL) { + DEBUGMSGTL(("lookupCtlTable", + "Can't get a ipv6 network host entry for %s\n", + address)); + modify_lookupCtlRc(item, h_errno); + } else { + i = 0; + while (lookup->h_addr_list[i]) { + char buf[64]; + int buflen; + + inet_ntop(lookup->h_addrtype, lookup->h_addr_list[i], + buf, sizeof(buf)); + buflen = strlen(buf); + switch (lookup->h_addrtype) { + case AF_INET: + temp = add_result(item, n, INETADDRESSTYPE_IPV4, buf, buflen); + break; + case AF_INET6: + temp = add_result(item, n, INETADDRESSTYPE_IPV6, buf, buflen); + break; + default: + snmp_log(LOG_ERR, "nslookup-mib/run_lookup: Unknown address type %d\n", lookup->h_addrtype); + temp = add_result(item, n, INETADDRESSTYPE_UNKNOWN, "", 0); + break; + } + DEBUGMSGTL(("lookupCtlTable", "Adding %d %s\n", n, buf)); + + if (n == 1) + item->ResultsTable = temp; + else + current->next = temp; + current = temp; + n = n + 1; + i = i + 1; + } + } +#endif + + timeuse = timeuse4 + timeuse6; + timeuse /= 1000; + modify_lookupCtlTime(item, timeuse); + modify_lookupCtlOperStatus(item, 3L); + + if (item->ResultsTable != NULL) { + modify_lookupCtlRc(item, 0L); + if (lookupResultsTable_add(item) != SNMPERR_SUCCESS) + DEBUGMSGTL(("lookupResultsTable", + "registered an entry error\n")); + } + SNMP_FREE(address); + return; + } + + else if (addressType == INETADDRESSTYPE_IPV6) { + struct in6_addr addr_in6; + struct hostent *lookup; + + if (inet_pton(AF_INET6, address, &addr_in6) == 1) + DEBUGMSGTL(("lookupCtlTable", "success! \n")); + else + DEBUGMSGTL(("lookupCtlTable", "error! \n")); + + netsnmp_get_monotonic_clock(&tpstart); + lookup = netsnmp_gethostbyaddr(&addr_in6, sizeof(addr_in6), AF_INET6); + netsnmp_get_monotonic_clock(&tpend); + timeuse = 1000000 * (tpend.tv_sec - tpstart.tv_sec) + + tpend.tv_usec - tpstart.tv_usec; + timeuse /= 1000; + modify_lookupCtlTime(item, timeuse); + modify_lookupCtlOperStatus(item, 3L); + + if (lookup == NULL) { + DEBUGMSGTL(("lookupCtlTable", + "Can't get a network host entry for %s\n", + address)); + modify_lookupCtlRc(item, h_errno); + return; + } else { + modify_lookupCtlRc(item, 0L); + if (lookup->h_name != NULL) { + current = temp = add_result(item, n, INETADDRESSTYPE_DNS, + lookup->h_name, strlen(lookup->h_name)); + n = n + 1; + } + + i = 0; + while (lookup->h_aliases[i]) { + current = temp = add_result(item, n, INETADDRESSTYPE_DNS, + lookup->h_aliases[i], strlen(lookup->h_aliases[i])); + current->next = temp; + current = temp; + i = i + 1; + n = n + 1; + } + + if (item->ResultsTable != NULL) + current->next = NULL; + else + current = NULL; + } + + if (item->ResultsTable != NULL) + if (lookupResultsTable_add(item) != SNMPERR_SUCCESS) + DEBUGMSGTL(("lookupResultsTable", + "registered an entry error\n")); + SNMP_FREE(address); + return; + } else { + SNMP_FREE(address); + return; + } +} + + +int +modify_lookupCtlOperStatus(struct lookupTable_data *thedata, long val) +{ + netsnmp_variable_list *vars = NULL; + struct lookupTable_data *StorageTmp = NULL; + + snmp_varlist_add_variable(&vars, NULL, 0, ASN_OCTET_STR, + (char *) thedata->lookupCtlOwnerIndex, thedata->lookupCtlOwnerIndexLen); + snmp_varlist_add_variable(&vars, NULL, 0, ASN_OCTET_STR, + (char *) thedata->lookupCtlOperationName, + thedata->lookupCtlOperationNameLen); + + + if ((StorageTmp = + header_complex_get(lookupCtlTableStorage, vars)) == NULL) { + snmp_free_varbind(vars); + vars = NULL; + return SNMP_ERR_NOSUCHNAME; + } + StorageTmp->lookupCtlOperStatus = val; + + snmp_free_varbind(vars); + vars = NULL; + + DEBUGMSGTL(("lookupOperStatus", "done.\n")); + return SNMPERR_SUCCESS; +} + +int +modify_lookupCtlTime(struct lookupTable_data *thedata, unsigned long val) +{ + netsnmp_variable_list *vars = NULL; + struct lookupTable_data *StorageTmp = NULL; + + snmp_varlist_add_variable(&vars, NULL, 0, ASN_OCTET_STR, + (char *) thedata->lookupCtlOwnerIndex, thedata->lookupCtlOwnerIndexLen); + snmp_varlist_add_variable(&vars, NULL, 0, ASN_OCTET_STR, + (char *) thedata->lookupCtlOperationName, + thedata->lookupCtlOperationNameLen); + + + if ((StorageTmp = + header_complex_get(lookupCtlTableStorage, vars)) == NULL) { + snmp_free_varbind(vars); + vars = NULL; + return SNMP_ERR_NOSUCHNAME; + } + StorageTmp->lookupCtlTime = val; + + snmp_free_varbind(vars); + vars = NULL; + + DEBUGMSGTL(("lookupCtlTime", "done.\n")); + return SNMPERR_SUCCESS; +} + +int +modify_lookupCtlRc(struct lookupTable_data *thedata, long val) +{ + netsnmp_variable_list *vars = NULL; + struct lookupTable_data *StorageTmp = NULL; + + snmp_varlist_add_variable(&vars, NULL, 0, ASN_OCTET_STR, + (char *) thedata->lookupCtlOwnerIndex, thedata->lookupCtlOwnerIndexLen); + snmp_varlist_add_variable(&vars, NULL, 0, ASN_OCTET_STR, + (char *) thedata->lookupCtlOperationName, + thedata->lookupCtlOperationNameLen); + + + if ((StorageTmp = + header_complex_get(lookupCtlTableStorage, vars)) == NULL) { + snmp_free_varbind(vars); + vars = NULL; + return SNMP_ERR_NOSUCHNAME; + } + StorageTmp->lookupCtlRc = val; + + snmp_free_varbind(vars); + vars = NULL; + DEBUGMSGTL(("lookupOperStatus", "done.\n")); + return SNMPERR_SUCCESS; +} + + +int +lookupResultsTable_del(struct lookupTable_data *thedata) +{ + struct header_complex_index *hciptr2 = NULL; + struct lookupResultsTable_data *StorageDel = NULL; + netsnmp_variable_list *vars = NULL; + oid newoid[MAX_OID_LEN]; + size_t newoid_len; + + snmp_varlist_add_variable(&vars, NULL, 0, ASN_OCTET_STR, + (char *) thedata->lookupCtlOwnerIndex, thedata->lookupCtlOwnerIndexLen); + snmp_varlist_add_variable(&vars, NULL, 0, ASN_OCTET_STR, + (char *) thedata->lookupCtlOperationName, + thedata->lookupCtlOperationNameLen); + memset(newoid, '\0', MAX_OID_LEN * sizeof(oid)); + header_complex_generate_oid(newoid, &newoid_len, NULL, 0, vars); + + + snmp_free_varbind(vars); + vars = NULL; + for (hciptr2 = lookupResultsTableStorage; hciptr2 != NULL; + hciptr2 = hciptr2->next) { + if (snmp_oid_compare(newoid, newoid_len, hciptr2->name, newoid_len) + == 0) { + StorageDel = + header_complex_extract_entry(&lookupResultsTableStorage, + hciptr2); + if (StorageDel != NULL) { + SNMP_FREE(StorageDel->lookupCtlOwnerIndex); + SNMP_FREE(StorageDel->lookupCtlOperationName); + SNMP_FREE(StorageDel->lookupResultsAddress); + SNMP_FREE(StorageDel); + } + DEBUGMSGTL(("lookupResultsTable", "delete success!\n")); + + } + } + return SNMPERR_SUCCESS; +} + + +#ifndef NETSNMP_NO_WRITE_SUPPORT +int +write_lookupCtlTargetAddressType(int action, + u_char * var_val, + u_char var_val_type, + size_t var_val_len, + u_char * statP, oid * name, + size_t name_len) +{ + static size_t tmpvar; + struct lookupTable_data *StorageTmp = NULL; + size_t newlen = + name_len - (sizeof(lookupCtlTable_variables_oid) / sizeof(oid) + + 3 - 1); + + if ((StorageTmp = + header_complex(lookupCtlTableStorage, NULL, + &name[sizeof(lookupCtlTable_variables_oid) / + sizeof(oid) + 3 - 1], &newlen, 1, NULL, + NULL)) == NULL) + return SNMP_ERR_NOSUCHNAME; /* remove if you support creation here */ + + if (StorageTmp && StorageTmp->storagetype == ST_READONLY) { + return SNMP_ERR_NOTWRITABLE; + } + + if (StorageTmp && StorageTmp->lookupCtlRowStatus == RS_ACTIVE) { + return SNMP_ERR_NOTWRITABLE; + } + switch (action) { + case RESERVE1: + if (var_val_type != ASN_INTEGER) { + snmp_log(LOG_ERR, + "write to lookupCtlTargetAddressType not ASN_INTEGER\n"); + return SNMP_ERR_WRONGTYPE; + } + break; + + case RESERVE2: + /* + * memory reseveration, final preparation... + */ + break; + + case FREE: + /* + * Release any resources that have been allocated + */ + break; + + case ACTION: + /* + * The variable has been stored in objid for + * you to use, and you have just been asked to do something with + * it. Note that anything done here must be reversable in the UNDO case + */ + tmpvar = StorageTmp->lookupCtlTargetAddressType; + StorageTmp->lookupCtlTargetAddressType = *((long *) var_val); + break; + + case UNDO: + /* + * Back out any changes made in the ACTION case + */ + StorageTmp->lookupCtlTargetAddressType = tmpvar; + break; + + case COMMIT: + /* + * Things are working well, so it's now safe to make the change + * permanently. Make sure that anything done here can't fail! + */ + + /** set up to save persistent store */ + snmp_store_needed(NULL); + + break; + } + return SNMP_ERR_NOERROR; +} + + + +int +write_lookupCtlTargetAddress(int action, + u_char * var_val, + u_char var_val_type, + size_t var_val_len, + u_char * statP, oid * name, size_t name_len) +{ + static char *tmpvar = NULL; + static size_t tmplen; + struct lookupTable_data *StorageTmp = NULL; + size_t newlen = + name_len - (sizeof(lookupCtlTable_variables_oid) / sizeof(oid) + + 3 - 1); + if ((StorageTmp = + header_complex(lookupCtlTableStorage, NULL, + &name[sizeof(lookupCtlTable_variables_oid) / + sizeof(oid) + 3 - 1], &newlen, 1, NULL, + NULL)) == NULL) + return SNMP_ERR_NOSUCHNAME; /* remove if you support creation here */ + + if (StorageTmp && StorageTmp->storagetype == ST_READONLY) { + return SNMP_ERR_NOTWRITABLE; + } + + if (StorageTmp && StorageTmp->lookupCtlRowStatus == RS_ACTIVE) { + return SNMP_ERR_NOTWRITABLE; + } + + switch (action) { + case RESERVE1: + if (var_val_type != ASN_OCTET_STR) { + snmp_log(LOG_ERR, + "write to lookupCtlTargetAddress not ASN_OCTET_STR\n"); + return SNMP_ERR_WRONGTYPE; + } + break; + + case RESERVE2: + /* + * memory reseveration, final preparation... + */ + break; + + case FREE: + /* + * Release any resources that have been allocated + */ + break; + + case ACTION: + /* + * The variable has been stored in long_ret for + * you to use, and you have just been asked to do something with + * it. Note that anything done here must be reversable in the UNDO case + */ + tmpvar = StorageTmp->lookupCtlTargetAddress; + tmplen = StorageTmp->lookupCtlTargetAddressLen; + + if ((StorageTmp->lookupCtlTargetAddress = + (char *) malloc(var_val_len + 1)) == NULL) { + snmp_log(LOG_ERR, "Out of memory in nslookup-mib/write_lookupCtlTargetAddress\n"); + exit(1); + } + memcpy(StorageTmp->lookupCtlTargetAddress, var_val, var_val_len); + StorageTmp->lookupCtlTargetAddress[var_val_len] = '\0'; + StorageTmp->lookupCtlTargetAddressLen = var_val_len; + + break; + + case UNDO: + /* + * Back out any changes made in the ACTION case + */ + free(StorageTmp->lookupCtlTargetAddress); + StorageTmp->lookupCtlTargetAddress = NULL; + StorageTmp->lookupCtlTargetAddress = tmpvar; + StorageTmp->lookupCtlTargetAddressLen = tmplen; + + break; + + case COMMIT: + /* + * Things are working well, so it's now safe to make the change + * permanently. Make sure that anything done here can't fail! + */ + + free(tmpvar); + tmpvar = NULL; + + /** set up to save persistent store */ + snmp_store_needed(NULL); + + break; + } + return SNMP_ERR_NOERROR; +} + + + +int +write_lookupCtlRowStatus(int action, + u_char * var_val, + u_char var_val_type, + size_t var_val_len, + u_char * statP, oid * name, size_t name_len) +{ + struct lookupTable_data *StorageTmp = NULL; + static struct lookupTable_data *StorageNew = NULL, *StorageDel = NULL; + size_t newlen = + name_len - (sizeof(lookupCtlTable_variables_oid) / sizeof(oid) + + 3 - 1); + static int old_value; + int set_value; + static netsnmp_variable_list *vars, *vp; + struct header_complex_index *hciptr = NULL; + + StorageTmp = + header_complex(lookupCtlTableStorage, NULL, + &name[sizeof(lookupCtlTable_variables_oid) / + sizeof(oid) + 3 - 1], &newlen, 1, NULL, NULL); + + if (var_val_type != ASN_INTEGER || var_val == NULL) { + snmp_log(LOG_ERR, "write to lookupCtlRowStatus not ASN_INTEGER\n"); + return SNMP_ERR_WRONGTYPE; + } + if (StorageTmp && StorageTmp->storagetype == ST_READONLY) { + return SNMP_ERR_NOTWRITABLE; + } + + set_value = *((long *) var_val); + + + /* + * check legal range, and notReady is reserved for us, not a user + */ + if (set_value < 1 || set_value > 6 || set_value == RS_NOTREADY) + return SNMP_ERR_INCONSISTENTVALUE; + + + switch (action) { + case RESERVE1: + /* + * stage one: test validity + */ + if (StorageTmp == NULL) { + /* + * create the row now? + */ + + + /* + * ditch illegal values now + */ + if (set_value == RS_ACTIVE || set_value == RS_NOTINSERVICE) { + return SNMP_ERR_INCONSISTENTVALUE; + } + + /* + * destroying a non-existent row is actually legal + */ + if (set_value == RS_DESTROY) { + return SNMP_ERR_NOERROR; + } + + + /* + * illegal creation values + */ + if (set_value == RS_ACTIVE || set_value == RS_NOTINSERVICE) { + return SNMP_ERR_INCONSISTENTVALUE; + } + } else { + /* + * row exists. Check for a valid state change + */ + if (set_value == RS_CREATEANDGO + || set_value == RS_CREATEANDWAIT) { + /* + * can't create a row that exists + */ + return SNMP_ERR_INCONSISTENTVALUE; + } + + /* + * XXX: interaction with row storage type needed + */ + + if (StorageTmp->lookupCtlRowStatus == RS_ACTIVE && + set_value != RS_DESTROY) { + /* + * "Once made active an entry may not be modified except to + * delete it." XXX: doesn't this in fact apply to ALL + * columns of the table and not just this one? + */ + return SNMP_ERR_INCONSISTENTVALUE; + } + if (StorageTmp->storagetype != ST_NONVOLATILE) + return SNMP_ERR_NOTWRITABLE; + } + break; + + + + + case RESERVE2: + /* + * memory reseveration, final preparation... + */ + if (StorageTmp == NULL) { + /* + * creation + */ + if (set_value == RS_DESTROY) { + return SNMP_ERR_NOERROR; + } + vars = NULL; + + /* + * 将name为空的三个索引字段加到var变量列表的末尾 + */ + snmp_varlist_add_variable(&vars, NULL, 0, ASN_OCTET_STR, NULL, 0); /* lookupCtlOwnerIndex */ + snmp_varlist_add_variable(&vars, NULL, 0, ASN_OCTET_STR, NULL, 0); /* lookupCtlOperationName */ + + if (header_complex_parse_oid + (& + (name + [sizeof(lookupCtlTable_variables_oid) / sizeof(oid) + + 2]), newlen, vars) != SNMPERR_SUCCESS) { + /* + * XXX: free, zero vars + */ + snmp_free_varbind(vars); + vars = NULL; + return SNMP_ERR_INCONSISTENTNAME; + } + vp = vars; + StorageNew = create_lookupTable_data(); + StorageNew->lookupCtlOwnerIndex = malloc(vp->val_len + 1); + memcpy(StorageNew->lookupCtlOwnerIndex, vp->val.string, + vp->val_len); + StorageNew->lookupCtlOwnerIndex[vp->val_len] = '\0'; + StorageNew->lookupCtlOwnerIndexLen = vp->val_len; + vp = vp->next_variable; + + StorageNew->lookupCtlOperationName = malloc(vp->val_len + 1); + memcpy(StorageNew->lookupCtlOperationName, vp->val.string, + vp->val_len); + StorageNew->lookupCtlOperationName[vp->val_len] = '\0'; + StorageNew->lookupCtlOperationNameLen = vp->val_len; + vp = vp->next_variable; + + /* + * XXX: fill in default row values here into StorageNew + */ + + StorageNew->lookupCtlTargetAddressType = INETADDRESSTYPE_IPV4; + + StorageNew->lookupCtlRowStatus = set_value; + + snmp_free_varbind(vars); + vars = NULL; + + /* + * XXX: free, zero vars, no longer needed? + */ + } + break; + + case FREE: + /* + * XXX: free, zero vars + */ + /* + * Release any resources that have been allocated + */ + break; + + case ACTION: + /* + * The variable has been stored in set_value for you to + * use, and you have just been asked to do something with + * it. Note that anything done here must be reversable in + * the UNDO case + */ + if (StorageTmp == NULL) { + /* + * row creation, so add it + */ + if (set_value == RS_DESTROY) { + return SNMP_ERR_NOERROR; + } + if (StorageNew != NULL) + DEBUGMSGTL(("lookupCtlTable", + "write_lookupCtlRowStatus entering new=%d... \n", + action)); + lookupCtlTable_add(StorageNew); + /* + * XXX: ack, and if it is NULL? + */ + } else if (set_value != RS_DESTROY) { + /* + * set the flag? + */ + old_value = StorageTmp->lookupCtlRowStatus; + StorageTmp->lookupCtlRowStatus = *((long *) var_val); + } else { + /* + * destroy... extract it for now + */ + DEBUGMSGTL(("lookupCtlTable", + "write_lookupCtlTable_delete 1 \n")); + hciptr = + header_complex_find_entry(lookupCtlTableStorage, + StorageTmp); + + StorageDel = + header_complex_extract_entry(&lookupCtlTableStorage, + hciptr); + lookupResultsTable_del(StorageTmp); + + DEBUGMSGTL(("lookupCtlTable", + "write_lookupCtlTable_delete \n")); + + } + break; + + case UNDO: + /* + * Back out any changes made in the ACTION case + */ + if (StorageTmp == NULL) { + /* + * row creation, so remove it again + */ + hciptr = + header_complex_find_entry(lookupCtlTableStorage, + StorageTmp); + StorageDel = + header_complex_extract_entry(&lookupCtlTableStorage, + hciptr); + + lookupResultsTable_del(StorageTmp); + + /* + * XXX: free it + */ + } else if (StorageDel != NULL) { + /* + * row deletion, so add it again + */ + lookupCtlTable_add(StorageDel); + lookupResultsTable_add(StorageDel); + } else { + StorageTmp->lookupCtlRowStatus = old_value; + } + break; + + case COMMIT: + /* + * Things are working well, so it's now safe to make the change + * permanently. Make sure that anything done here can't fail! + */ + if (StorageTmp == NULL) { + if (set_value == RS_DESTROY) { + return SNMP_ERR_NOERROR; + } + } + + if (StorageDel != NULL) { + SNMP_FREE(StorageDel->lookupCtlOwnerIndex); + SNMP_FREE(StorageDel->lookupCtlOperationName); + SNMP_FREE(StorageDel->lookupCtlTargetAddress); + SNMP_FREE(StorageDel); + /* + * XXX: free it, its dead + */ + } else { + if (StorageTmp + && StorageTmp->lookupCtlRowStatus == RS_CREATEANDGO) { + StorageTmp->lookupCtlRowStatus = RS_ACTIVE; + } else if (StorageTmp && + StorageTmp->lookupCtlRowStatus == + RS_CREATEANDWAIT) { + + StorageTmp->lookupCtlRowStatus = RS_NOTINSERVICE; + } + } + if (StorageTmp && StorageTmp->lookupCtlRowStatus == RS_ACTIVE) { + DEBUGMSGTL(("lookupCtlTable", + "write_lookupCtlRowStatus entering runbefore=%ld... \n", + StorageTmp->lookupCtlTargetAddressType)); + + modify_lookupCtlOperStatus(StorageTmp, 2L); + run_lookup((struct lookupTable_data *) StorageTmp); + + } + + /** set up to save persistent store */ + snmp_store_needed(NULL); + + break; + } + return SNMP_ERR_NOERROR; +} +#endif /* !NETSNMP_NO_WRITE_SUPPORT */ |