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api.c
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api.c
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/* Pi-hole: A black hole for Internet advertisements
* (c) 2017 Pi-hole, LLC (https://pi-hole.net)
* Network-wide ad blocking via your own hardware.
*
* FTL Engine
* API Implementation
*
* This file is copyright under the latest version of the EUPL.
* Please see LICENSE file for your rights under this license. */
#include "FTL.h"
#include "api.h"
#include "version.h"
#define min(a,b) ({ __typeof__ (a) _a = (a); __typeof__ (b) _b = (b); _a < _b ? _a : _b; })
/* qsort comparision function (count field), sort ASC */
int cmpasc(const void *a, const void *b)
{
int *elem1 = (int*)a;
int *elem2 = (int*)b;
if (elem1[1] < elem2[1])
return -1;
else if (elem1[1] > elem2[1])
return 1;
else
return 0;
}
// qsort subroutine, sort DESC
int cmpdesc(const void *a, const void *b)
{
int *elem1 = (int*)a;
int *elem2 = (int*)b;
if (elem1[1] > elem2[1])
return -1;
else if (elem1[1] < elem2[1])
return 1;
else
return 0;
}
void getStats(int *sock)
{
int blocked = counters.blocked;
int total = counters.queries;
float percentage = 0.0f;
// Avoid 1/0 condition
if(total > 0)
percentage = 1e2f*blocked/total;
// Send domains being blocked
if(istelnet[*sock]) {
ssend(*sock, "domains_being_blocked %i\n", counters.gravity);
}
else
pack_int32(*sock, counters.gravity);
// unique_clients: count only clients that have been active within the most recent 24 hours
int i, activeclients = 0;
for(i=0; i < counters.clients; i++)
{
validate_access("clients", i, true, __LINE__, __FUNCTION__, __FILE__);
if(clients[i].count > 0)
activeclients++;
}
if(istelnet[*sock]) {
ssend(*sock, "dns_queries_today %i\nads_blocked_today %i\nads_percentage_today %f\n",
total, blocked, percentage);
ssend(*sock, "unique_domains %i\nqueries_forwarded %i\nqueries_cached %i\n",
counters.domains, counters.forwardedqueries, counters.cached);
ssend(*sock, "clients_ever_seen %i\n", counters.clients);
ssend(*sock, "unique_clients %i\n", activeclients);
// Sum up all query types (A, AAAA, ANY, SRV, SOA, ...)
int sumalltypes = 0;
for(i=0; i < TYPE_MAX-1; i++)
{
sumalltypes += counters.querytype[i];
}
ssend(*sock, "dns_queries_all_types %i\n", sumalltypes);
// Send individual reply type counters
ssend(*sock, "reply_NODATA %i\nreply_NXDOMAIN %i\nreply_CNAME %i\nreply_IP %i\n",
counters.reply_NODATA, counters.reply_NXDOMAIN, counters.reply_CNAME, counters.reply_IP);
ssend(*sock, "privacy_level %i\n", config.privacylevel);
}
else
{
pack_int32(*sock, total);
pack_int32(*sock, blocked);
pack_float(*sock, percentage);
pack_int32(*sock, counters.domains);
pack_int32(*sock, counters.forwardedqueries);
pack_int32(*sock, counters.cached);
pack_int32(*sock, counters.clients);
pack_int32(*sock, activeclients);
}
// Send status
if(istelnet[*sock]) {
ssend(*sock, "status %s\n", counters.gravity > 0 ? "enabled" : "disabled");
}
else
pack_uint8(*sock, blockingstatus);
}
void getOverTime(int *sock)
{
int i, j = 9999999;
bool found = false;
time_t mintime = time(NULL) - config.maxlogage;
// Start with the first non-empty overTime slot
for(i=0; i < counters.overTime; i++)
{
validate_access("overTime", i, true, __LINE__, __FUNCTION__, __FILE__);
if((overTime[i].total > 0 || overTime[i].blocked > 0) &&
overTime[i].timestamp >= mintime)
{
j = i;
found = true;
break;
}
}
// Check if there is any data to be sent
if(!found)
return;
if(istelnet[*sock])
{
for(i = j; i < counters.overTime; i++)
{
ssend(*sock,"%i %i %i\n",overTime[i].timestamp,overTime[i].total,overTime[i].blocked);
}
}
else
{
// We can use the map16 type because there should only be about 288 time slots (TIMEFRAME set to "yesterday")
// and map16 can hold up to (2^16)-1 = 65535 pairs
// Send domains over time
pack_map16_start(*sock, (uint16_t) (counters.overTime - j));
for(i = j; i < counters.overTime; i++) {
pack_int32(*sock, overTime[i].timestamp);
pack_int32(*sock, overTime[i].total);
}
// Send ads over time
pack_map16_start(*sock, (uint16_t) (counters.overTime - j));
for(i = j; i < counters.overTime; i++) {
pack_int32(*sock, overTime[i].timestamp);
pack_int32(*sock, overTime[i].blocked);
}
}
}
void getTopDomains(char *client_message, int *sock)
{
int i, temparray[counters.domains][2], count=10, num;
bool blocked, audit = false, asc = false;
blocked = command(client_message, ">top-ads");
// Exit before processing any data if requested via config setting
get_privacy_level(NULL);
if(config.privacylevel >= PRIVACY_HIDE_DOMAINS) {
// Always send the total number of domains, but pretend it's 0
if(!istelnet[*sock])
pack_int32(*sock, 0);
return;
}
// Match both top-domains and top-ads
// example: >top-domains (15)
if(sscanf(client_message, "%*[^(](%i)", &num) > 0) {
// User wants a different number of requests
count = num;
}
// Apply Audit Log filtering?
// example: >top-domains for audit
if(command(client_message, " for audit"))
audit = true;
// Sort in ascending order?
// example: >top-domains asc
if(command(client_message, " asc"))
asc = true;
for(i=0; i < counters.domains; i++)
{
validate_access("domains", i, true, __LINE__, __FUNCTION__, __FILE__);
temparray[i][0] = i;
if(blocked)
temparray[i][1] = domains[i].blockedcount;
else
// Count only permitted queries
temparray[i][1] = (domains[i].count - domains[i].blockedcount);
}
// Sort temporary array
if(asc)
qsort(temparray, counters.domains, sizeof(int[2]), cmpasc);
else
qsort(temparray, counters.domains, sizeof(int[2]), cmpdesc);
// Get filter
char * filter = read_setupVarsconf("API_QUERY_LOG_SHOW");
bool showpermitted = true, showblocked = true;
if(filter != NULL)
{
if((strcmp(filter, "permittedonly")) == 0)
showblocked = false;
else if((strcmp(filter, "blockedonly")) == 0)
showpermitted = false;
else if((strcmp(filter, "nothing")) == 0)
{
showpermitted = false;
showblocked = false;
}
}
clearSetupVarsArray();
// Get domains which the user doesn't want to see
char * excludedomains = NULL;
if(!audit)
{
excludedomains = read_setupVarsconf("API_EXCLUDE_DOMAINS");
if(excludedomains != NULL)
{
getSetupVarsArray(excludedomains);
}
}
if(!istelnet[*sock])
{
// Send the data required to get the percentage each domain has been blocked / queried
if(blocked)
pack_int32(*sock, counters.blocked);
else
pack_int32(*sock, counters.queries);
}
int n = 0;
for(i=0; i < counters.domains; i++)
{
// Get sorted indices
int j = temparray[i][0];
validate_access("domains", j, true, __LINE__, __FUNCTION__, __FILE__);
// Skip this domain if there is a filter on it
if(excludedomains != NULL && insetupVarsArray(domains[j].domain))
continue;
// Skip this domain if already included in audit
if(audit && countlineswith(domains[j].domain, files.auditlist) > 0)
continue;
// Hidden domain, probably due to privacy level. Skip this in the top lists
if(strcmp(domains[j].domain, HIDDEN_DOMAIN) == 0)
continue;
if(blocked && showblocked && domains[j].blockedcount > 0)
{
if(audit && domains[j].regexmatch == REGEX_BLOCKED)
{
if(istelnet[*sock])
ssend(*sock, "%i %i %s wildcard\n", n, domains[j].blockedcount, domains[j].domain);
else {
char *fancyWildcard = calloc(3 + strlen(domains[j].domain), sizeof(char));
if(fancyWildcard == NULL) return;
sprintf(fancyWildcard, "*.%s", domains[j].domain);
if(!pack_str32(*sock, fancyWildcard))
return;
pack_int32(*sock, domains[j].blockedcount);
free(fancyWildcard);
}
}
else
{
if(istelnet[*sock])
ssend(*sock, "%i %i %s\n", n, domains[j].blockedcount, domains[j].domain);
else {
if(!pack_str32(*sock, domains[j].domain))
return;
pack_int32(*sock, domains[j].blockedcount);
}
}
n++;
}
else if(!blocked && showpermitted && (domains[j].count - domains[j].blockedcount) > 0)
{
if(istelnet[*sock])
ssend(*sock,"%i %i %s\n",n,(domains[j].count - domains[j].blockedcount),domains[j].domain);
else
{
if(!pack_str32(*sock, domains[j].domain))
return;
pack_int32(*sock, domains[j].count - domains[j].blockedcount);
}
n++;
}
// Only count entries that are actually sent and return when we have send enough data
if(n == count)
break;
}
if(excludedomains != NULL)
clearSetupVarsArray();
}
void getTopClients(char *client_message, int *sock)
{
int i, temparray[counters.clients][2], count=10, num;
// Exit before processing any data if requested via config setting
get_privacy_level(NULL);
if(config.privacylevel >= PRIVACY_HIDE_DOMAINS_CLIENTS) {
// Always send the total number of clients, but pretend it's 0
if(!istelnet[*sock])
pack_int32(*sock, 0);
return;
}
// Match both top-domains and top-ads
// example: >top-clients (15)
if(sscanf(client_message, "%*[^(](%i)", &num) > 0) {
// User wants a different number of requests
count = num;
}
// Show also clients which have not been active recently?
// This option can be combined with existing options,
// i.e. both >top-clients withzero" and ">top-clients withzero (123)" are valid
bool includezeroclients = false;
if(command(client_message, " withzero"))
includezeroclients = true;
// Show number of blocked queries instead of total number?
// This option can be combined with existing options,
// i.e. ">top-clients withzero blocked (123)" would be valid
bool blockedonly = false;
if(command(client_message, " blocked"))
blockedonly = true;
for(i=0; i < counters.clients; i++)
{
validate_access("clients", i, true, __LINE__, __FUNCTION__, __FILE__);
temparray[i][0] = i;
// Use either blocked or total count based on request string
temparray[i][1] = blockedonly ? clients[i].blockedcount : clients[i].count;
}
// Sort in ascending order?
// example: >top-clients asc
bool asc = false;
if(command(client_message, " asc"))
asc = true;
// Sort temporary array
if(asc)
qsort(temparray, counters.clients, sizeof(int[2]), cmpasc);
else
qsort(temparray, counters.clients, sizeof(int[2]), cmpdesc);
// Get clients which the user doesn't want to see
char * excludeclients = read_setupVarsconf("API_EXCLUDE_CLIENTS");
if(excludeclients != NULL)
{
getSetupVarsArray(excludeclients);
}
if(!istelnet[*sock])
{
// Send the total queries so they can make percentages from this data
pack_int32(*sock, counters.queries);
}
int n = 0;
for(i=0; i < counters.clients; i++)
{
// Get sorted indices and counter values (may be either total or blocked count)
int j = temparray[i][0];
int ccount = temparray[i][1];
validate_access("clients", j, true, __LINE__, __FUNCTION__, __FILE__);
// Skip this client if there is a filter on it
if(excludeclients != NULL &&
(insetupVarsArray(clients[j].ip) || insetupVarsArray(clients[j].name)))
continue;
// Hidden client, probably due to privacy level. Skip this in the top lists
if(strcmp(clients[j].ip, HIDDEN_CLIENT) == 0)
continue;
// Only return name if available
char *name;
if(clients[j].name != NULL)
name = clients[j].name;
else
name = "";
// Return this client if either
// - "withzero" option is set, and/or
// - the client made at least one query within the most recent 24 hours
if(includezeroclients || ccount > 0)
{
if(istelnet[*sock])
ssend(*sock,"%i %i %s %s\n", n, ccount, clients[j].ip, name);
else
{
if(!pack_str32(*sock, "") || !pack_str32(*sock, clients[j].ip))
return;
pack_int32(*sock, ccount);
}
n++;
}
if(n == count)
break;
}
if(excludeclients != NULL)
clearSetupVarsArray();
}
void getForwardDestinations(char *client_message, int *sock)
{
bool sort = true;
int i, temparray[counters.forwarded][2], forwardedsum = 0, totalqueries = 0;
if(command(client_message, "unsorted"))
sort = false;
for(i=0; i < counters.forwarded; i++) {
validate_access("forwarded", i, true, __LINE__, __FUNCTION__, __FILE__);
// Compute forwardedsum
forwardedsum += forwarded[i].count;
// If we want to print a sorted output, we fill the temporary array with
// the values we will use for sorting afterwards
if(sort) {
temparray[i][0] = i;
temparray[i][1] = forwarded[i].count;
}
}
if(sort)
{
// Sort temporary array in descending order
qsort(temparray, counters.forwarded, sizeof(int[2]), cmpdesc);
}
totalqueries = counters.forwardedqueries + counters.cached + counters.blocked;
// Loop over available forward destinations
for(i=-2; i < min(counters.forwarded, 8); i++)
{
char *ip, *name;
float percentage = 0.0f;
if(i == -2)
{
// Blocked queries (local lists)
ip = "blocklist";
name = ip;
if(totalqueries > 0)
// Whats the percentage of locked queries on the total amount of queries?
percentage = 1e2f * counters.blocked / totalqueries;
}
else if(i == -1)
{
// Local cache
ip = "cache";
name = ip;
if(totalqueries > 0)
// Whats the percentage of cached queries on the total amount of queries?
percentage = 1e2f * counters.cached / totalqueries;
}
else
{
// Regular forward destionation
// Get sorted indices
int j;
if(sort)
j = temparray[i][0];
else
j = i;
validate_access("forwarded", j, true, __LINE__, __FUNCTION__, __FILE__);
ip = forwarded[j].ip;
// Only return name if available
if(forwarded[j].name != NULL)
name = forwarded[j].name;
else
name = "";
// Math explanation:
// A single query may result in requests being forwarded to multiple destinations
// Hence, in order to be able to give percentages here, we have to normalize the
// number of forwards to each specific destination by the total number of forward
// events. This term is done by
// a = forwarded[j].count / forwardedsum
//
// The fraction a describes now how much share an individual forward destination
// has on the total sum of sent requests.
// We also know the share of forwarded queries on the total number of queries
// b = counters.forwardedqueries / c
// where c is the number of valid queries,
// c = counters.forwardedqueries + counters.cached + counters.blocked
//
// To get the total percentage of a specific query on the total number of queries,
// we simply have to scale b by a which is what we do in the following.
if(forwardedsum > 0 && totalqueries > 0)
percentage = 1e2f * forwarded[j].count / forwardedsum * counters.forwardedqueries / totalqueries;
}
// Send data:
// - always if i < 0 (special upstreams: blocklist and cache)
// - only if percentage > 0.0 for all others (i > 0)
if(percentage > 0.0f || i < 0)
{
if(istelnet[*sock])
ssend(*sock, "%i %.2f %s %s\n", i, percentage, ip, name);
else
{
if(!pack_str32(*sock, name) || !pack_str32(*sock, ip))
return;
pack_float(*sock, percentage);
}
}
}
}
void getQueryTypes(int *sock)
{
int i,total = 0;
for(i=0; i < TYPE_MAX-1; i++)
total += counters.querytype[i];
float percentage[TYPE_MAX-1] = { 0.0 };
// Prevent floating point exceptions by checking if the divisor is != 0
if(total > 0)
for(i=0; i < TYPE_MAX-1; i++)
percentage[i] = 1e2f*counters.querytype[i]/total;
if(istelnet[*sock]) {
ssend(*sock, "A (IPv4): %.2f\nAAAA (IPv6): %.2f\nANY: %.2f\nSRV: %.2f\nSOA: %.2f\nPTR: %.2f\nTXT: %.2f\n",
percentage[0], percentage[1], percentage[2], percentage[3],
percentage[4], percentage[5], percentage[6]);
}
else {
pack_str32(*sock, "A (IPv4)");
pack_float(*sock, percentage[0]);
pack_str32(*sock, "AAAA (IPv6)");
pack_float(*sock, percentage[1]);
pack_str32(*sock, "ANY");
pack_float(*sock, percentage[2]);
pack_str32(*sock, "SRV");
pack_float(*sock, percentage[3]);
pack_str32(*sock, "SOA");
pack_float(*sock, percentage[4]);
pack_str32(*sock, "PTR");
pack_float(*sock, percentage[5]);
pack_str32(*sock, "TXT");
pack_float(*sock, percentage[6]);
}
}
char *querytypes[8] = {"A","AAAA","ANY","SRV","SOA","PTR","TXT","UNKN"};
void getAllQueries(char *client_message, int *sock)
{
// Exit before processing any data if requested via config setting
get_privacy_level(NULL);
if(config.privacylevel >= PRIVACY_MAXIMUM)
return;
// Do we want a more specific version of this command (domain/client/time interval filtered)?
int from = 0, until = 0;
char *domainname = NULL;
bool filterdomainname = false;
int domainid = -1;
char *clientname = NULL;
bool filterclientname = false;
int clientid = -1;
int querytype = 0;
char *forwarddest = NULL;
bool filterforwarddest = false;
int forwarddestid = 0;
// Time filtering?
if(command(client_message, ">getallqueries-time")) {
sscanf(client_message, ">getallqueries-time %i %i",&from, &until);
}
// Query type filtering?
if(command(client_message, ">getallqueries-qtype")) {
// Get query type we want to see only
sscanf(client_message, ">getallqueries-qtype %i", &querytype);
if(querytype < 1 || querytype >= TYPE_MAX)
{
// Invalid query type requested
return;
}
}
// Forward destination filtering?
if(command(client_message, ">getallqueries-forward")) {
// Get forward destination name we want to see only (limit length to 255 chars)
forwarddest = calloc(256, sizeof(char));
if(forwarddest == NULL) return;
sscanf(client_message, ">getallqueries-forward %255s", forwarddest);
filterforwarddest = true;
if(strcmp(forwarddest, "cache") == 0)
forwarddestid = -1;
else if(strcmp(forwarddest, "blocklist") == 0)
forwarddestid = -2;
else
{
// Iterate through all known forward destinations
int i;
validate_access("forwards", MAX(0,counters.forwarded-1), true, __LINE__, __FUNCTION__, __FILE__);
forwarddestid = -3;
for(i = 0; i < counters.forwarded; i++)
{
// Try to match the requested string against their IP addresses and
// (if available) their host names
if(strcmp(forwarded[i].ip, forwarddest) == 0 ||
(forwarded[i].name != NULL &&
strcmp(forwarded[i].name, forwarddest) == 0))
{
forwarddestid = i;
break;
}
}
if(forwarddestid < 0)
{
// Requested forward destination has not been found, we directly
// exit here as there is no data to be returned
free(forwarddest);
return;
}
}
}
// Domain filtering?
if(command(client_message, ">getallqueries-domain")) {
// Get domain name we want to see only (limit length to 255 chars)
domainname = calloc(256, sizeof(char));
if(domainname == NULL) return;
sscanf(client_message, ">getallqueries-domain %255s", domainname);
filterdomainname = true;
// Iterate through all known domains
int i;
validate_access("domains", MAX(0,counters.domains-1), true, __LINE__, __FUNCTION__, __FILE__);
for(i = 0; i < counters.domains; i++)
{
// Try to match the requested string
if(strcmp(domains[i].domain, domainname) == 0)
{
domainid = i;
break;
}
}
if(domainid < 0)
{
// Requested domain has not been found, we directly
// exit here as there is no data to be returned
free(domainname);
return;
}
}
// Client filtering?
if(command(client_message, ">getallqueries-client")) {
// Get client name we want to see only (limit length to 255 chars)
clientname = calloc(256, sizeof(char));
if(clientname == NULL) return;
sscanf(client_message, ">getallqueries-client %255s", clientname);
filterclientname = true;
// Iterate through all known clients
int i;
validate_access("clients", MAX(0,counters.clients-1), true, __LINE__, __FUNCTION__, __FILE__);
for(i = 0; i < counters.clients; i++)
{
// Try to match the requested string
if(strcmp(clients[i].ip, clientname) == 0 ||
(clients[i].name != NULL &&
strcmp(clients[i].name, clientname) == 0))
{
clientid = i;
break;
}
}
if(clientid < 0)
{
// Requested client has not been found, we directly
// exit here as there is no data to be returned
free(clientname);
return;
}
}
int ibeg = 0, num;
// Test for integer that specifies number of entries to be shown
if(sscanf(client_message, "%*[^(](%i)", &num) > 0)
{
// User wants a different number of requests
// Don't allow a start index that is smaller than zero
ibeg = counters.queries-num;
if(ibeg < 0)
ibeg = 0;
}
// Get potentially existing filtering flags
char * filter = read_setupVarsconf("API_QUERY_LOG_SHOW");
bool showpermitted = true, showblocked = true;
if(filter != NULL)
{
if((strcmp(filter, "permittedonly")) == 0)
showblocked = false;
else if((strcmp(filter, "blockedonly")) == 0)
showpermitted = false;
else if((strcmp(filter, "nothing")) == 0)
{
showpermitted = false;
showblocked = false;
}
}
clearSetupVarsArray();
int i;
for(i=ibeg; i < counters.queries; i++)
{
validate_access("queries", i, true, __LINE__, __FUNCTION__, __FILE__);
// Check if this query has been create while in maximum privacy mode
if(queries[i].privacylevel >= PRIVACY_MAXIMUM) continue;
validate_access("domains", queries[i].domainID, true, __LINE__, __FUNCTION__, __FILE__);
validate_access("clients", queries[i].clientID, true, __LINE__, __FUNCTION__, __FILE__);
char *qtype = querytypes[queries[i].type - TYPE_A];
// 1 = gravity.list, 4 = wildcard, 5 = black.list
if((queries[i].status == QUERY_GRAVITY ||
queries[i].status == QUERY_WILDCARD ||
queries[i].status == QUERY_BLACKLIST) && !showblocked)
continue;
// 2 = forwarded, 3 = cached
if((queries[i].status == QUERY_FORWARDED ||
queries[i].status == QUERY_CACHE) && !showpermitted)
continue;
// Skip those entries which so not meet the requested timeframe
if((from > queries[i].timestamp && from != 0) || (queries[i].timestamp > until && until != 0))
continue;
// Skip if domain is not identical with what the user wants to see
if(filterdomainname && queries[i].domainID != domainid)
continue;
// Skip if client name and IP are not identical with what the user wants to see
if(filterclientname && queries[i].clientID != clientid)
continue;
// Skip if query type is not identical with what the user wants to see
if(querytype != 0 && querytype != queries[i].type)
continue;
if(filterforwarddest)
{
// Does the user want to see queries answered from blocking lists?
if(forwarddestid == -2 && queries[i].status != QUERY_GRAVITY
&& queries[i].status != QUERY_WILDCARD
&& queries[i].status != QUERY_BLACKLIST)
continue;
// Does the user want to see queries answered from local cache?
else if(forwarddestid == -1 && queries[i].status != QUERY_CACHE)
continue;
// Does the user want to see queries answered by an upstream server?
else if(forwarddestid >= 0 && forwarddestid != queries[i].forwardID)
continue;
}
// Ask subroutine for domain. It may return "hidden" depending on
// the privacy settings at the time the query was made
char *domain = getDomainString(i);
// Similarly for the client
char *client;
if(clients[queries[i].clientID].name != NULL &&
strlen(clients[queries[i].clientID].name) > 0 &&
queries[i].privacylevel < PRIVACY_HIDE_DOMAINS_CLIENTS)
client = clients[queries[i].clientID].name;
else
client = getClientIPString(i);
unsigned long delay = queries[i].response;
// Check if received (delay should be smaller than 30min)
if(delay > 1.8e7)
delay = 0;
if(istelnet[*sock])
{
ssend(*sock,"%i %s %s %s %i %i %i %lu\n",queries[i].timestamp,qtype,domain,client,queries[i].status,queries[i].dnssec,queries[i].reply,delay);
}
else
{
pack_int32(*sock, queries[i].timestamp);
// Use a fixstr because the length of qtype is always 4 (max is 31 for fixstr)
if(!pack_fixstr(*sock, qtype))
return;
// Use str32 for domain and client because we have no idea how long they will be (max is 4294967295 for str32)
if(!pack_str32(*sock, domain) || !pack_str32(*sock, client))
return;
pack_uint8(*sock, queries[i].status);
pack_uint8(*sock, queries[i].dnssec);
}
}
// Free allocated memory
if(filterclientname)
free(clientname);
if(filterdomainname)
free(domainname);
if(filterforwarddest)
free(forwarddest);
}
void getRecentBlocked(char *client_message, int *sock)
{
int i, num=1;
// Test for integer that specifies number of entries to be shown
if(sscanf(client_message, "%*[^(](%i)", &num) > 0) {
// User wants a different number of requests
if(num >= counters.queries)
num = 0;
}
// Find most recently blocked query
int found = 0;
for(i = counters.queries - 1; i > 0 ; i--)
{
validate_access("queries", i, true, __LINE__, __FUNCTION__, __FILE__);
if(queries[i].status == QUERY_GRAVITY ||
queries[i].status == QUERY_WILDCARD ||
queries[i].status == QUERY_BLACKLIST)
{
found++;
// Ask subroutine for domain. It may return "hidden" depending on
// the privacy settings at the time the query was made
char *domain = getDomainString(i);
if(istelnet[*sock])
ssend(*sock,"%s\n", domain);
else if(!pack_str32(*sock, domain))
return;
}
if(found >= num)
break;
}
}
void getClientID(int *sock)
{
if(istelnet[*sock])
ssend(*sock,"%i\n", *sock);
else
pack_int32(*sock, *sock);
}
void getQueryTypesOverTime(int *sock)
{
int i, sendit = -1;
time_t mintime = time(NULL) - config.maxlogage;
for(i = 0; i < counters.overTime; i++)
{
validate_access("overTime", i, true, __LINE__, __FUNCTION__, __FILE__);
if((overTime[i].total > 0 || overTime[i].blocked > 0) && overTime[i].timestamp >= mintime)
{
sendit = i;
break;
}
}
if(sendit > -1)
{
for(i = sendit; i < counters.overTime; i++)
{
validate_access("overTime", i, true, __LINE__, __FUNCTION__, __FILE__);
float percentageIPv4 = 0.0, percentageIPv6 = 0.0;
int sum = overTime[i].querytypedata[0] + overTime[i].querytypedata[1];
if(sum > 0) {
percentageIPv4 = (float) (1e2 * overTime[i].querytypedata[0] / sum);
percentageIPv6 = (float) (1e2 * overTime[i].querytypedata[1] / sum);
}
if(istelnet[*sock])
ssend(*sock, "%i %.2f %.2f\n", overTime[i].timestamp, percentageIPv4, percentageIPv6);
else {
pack_int32(*sock, overTime[i].timestamp);
pack_float(*sock, percentageIPv4);
pack_float(*sock, percentageIPv6);
}
}
}
}
void getVersion(int *sock)
{
const char * commit = GIT_HASH;
const char * tag = GIT_TAG;
// Extract first 7 characters of the hash
char hash[8];
strncpy(hash, commit, 7); hash[7] = 0;
if(strlen(tag) > 1) {
if(istelnet[*sock])
ssend(
*sock,
"version %s\ntag %s\nbranch %s\nhash %s\ndate %s\n",
GIT_VERSION, tag, GIT_BRANCH, hash, GIT_DATE
);
else {
if(!pack_str32(*sock, GIT_VERSION) ||
!pack_str32(*sock, (char *) tag) ||
!pack_str32(*sock, GIT_BRANCH) ||
!pack_str32(*sock, hash) ||
!pack_str32(*sock, GIT_DATE))
return;
}
}
else {
if(istelnet[*sock])
ssend(
*sock,
"version vDev-%s\ntag %s\nbranch %s\nhash %s\ndate %s\n",
hash, tag, GIT_BRANCH, hash, GIT_DATE
);
else {
char *hashVersion = calloc(6 + strlen(hash), sizeof(char));
if(hashVersion == NULL) return;
sprintf(hashVersion, "vDev-%s", hash);
if(!pack_str32(*sock, hashVersion) ||
!pack_str32(*sock, (char *) tag) ||
!pack_str32(*sock, GIT_BRANCH) ||
!pack_str32(*sock, hash) ||
!pack_str32(*sock, GIT_DATE))
return;
free(hashVersion);
}
}
}
void getDBstats(int *sock)
{
// Get file details
struct stat st;
long int filesize = 0;
if(stat(FTLfiles.db, &st) != 0)