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haproxy/addons/51degrees/51d.c

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#include <stdio.h>
#include <import/lru.h>
#include <haproxy/api.h>
#include <haproxy/arg.h>
#include <haproxy/buf-t.h>
#include <haproxy/cfgparse.h>
#include <haproxy/chunk.h>
#include <haproxy/errors.h>
#include <haproxy/global.h>
#include <haproxy/http_ana.h>
#include <haproxy/http_fetch.h>
#include <haproxy/http_htx.h>
#include <haproxy/htx.h>
#include <haproxy/sample.h>
#include <haproxy/thread.h>
#include <haproxy/tools.h>
#include <haproxy/xxhash.h>
#ifdef USE_51DEGREES_V4
#include <hash/hash.h>
#undef MAP_TYPE
#include <hash/fiftyone.h>
#else
#include <51Degrees.h>
#endif
struct _51d_property_names {
struct list list;
char *name;
};
#ifdef FIFTYONEDEGREES_H_PATTERN_INCLUDED
static struct lru64_head *_51d_lru_tree = NULL;
static unsigned long long _51d_lru_seed;
__decl_spinlock(_51d_lru_lock);
#endif
#ifdef FIFTYONE_DEGREES_HASH_INCLUDED
#define _51D_HEADERS_BUFFER_SIZE BUFSIZE
static THREAD_LOCAL struct {
char **buf;
int max;
int count;
} _51d_headers;
static THREAD_LOCAL fiftyoneDegreesResultsHash *_51d_results = NULL;
#endif
static struct {
char property_separator; /* the separator to use in the response for the values. this is taken from 51degrees-property-separator from config. */
struct list property_names; /* list of properties to load into the data set. this is taken from 51degrees-property-name-list from config. */
char *data_file_path;
#if defined(FIFTYONEDEGREES_H_PATTERN_INCLUDED) || defined(FIFTYONEDEGREES_H_TRIE_INCLUDED)
int header_count; /* number of HTTP headers related to device detection. */
struct buffer *header_names; /* array of HTTP header names. */
fiftyoneDegreesDataSet data_set; /* data set used with the pattern and trie detection methods. */
#ifdef FIFTYONEDEGREES_H_PATTERN_INCLUDED
fiftyoneDegreesWorksetPool *pool; /* pool of worksets to avoid creating a new one for each request. */
#endif
#ifdef FIFTYONEDEGREES_H_TRIE_INCLUDED
int32_t *header_offsets; /* offsets to the HTTP header name string. */
#ifdef FIFTYONEDEGREES_NO_THREADING
fiftyoneDegreesDeviceOffsets device_offsets; /* Memory used for device offsets. */
#endif
#endif
#elif defined(FIFTYONE_DEGREES_HASH_INCLUDED)
fiftyoneDegreesResourceManager manager;
int use_perf_graph;
int use_pred_graph;
int drift;
int difference;
int allow_unmatched;
#endif
int cache_size;
} global_51degrees = {
.property_separator = ',',
.property_names = LIST_HEAD_INIT(global_51degrees.property_names),
.data_file_path = NULL,
#ifdef FIFTYONEDEGREES_H_PATTERN_INCLUDED
.data_set = { },
#endif
#ifdef FIFTYONE_DEGREES_HASH_INCLUDED
.manager = { },
.use_perf_graph = -1,
.use_pred_graph = -1,
.drift = -1,
.difference = -1,
.allow_unmatched = -1,
#endif
.cache_size = 0,
};
static int _51d_data_file(char **args, int section_type, struct proxy *curpx,
const struct proxy *defpx, const char *file, int line,
char **err)
{
if (*(args[1]) == 0) {
memprintf(err,
"'%s' expects a filepath to a 51Degrees trie or pattern data file.",
args[0]);
return -1;
}
if (global_51degrees.data_file_path)
free(global_51degrees.data_file_path);
global_51degrees.data_file_path = strdup(args[1]);
return 0;
}
static int _51d_property_name_list(char **args, int section_type, struct proxy *curpx,
const struct proxy *defpx, const char *file, int line,
char **err)
{
int cur_arg = 1;
struct _51d_property_names *name;
if (*(args[cur_arg]) == 0) {
memprintf(err,
"'%s' expects at least one 51Degrees property name.",
args[0]);
return -1;
}
while (*(args[cur_arg])) {
name = calloc(1, sizeof(*name));
name->name = strdup(args[cur_arg]);
LIST_APPEND(&global_51degrees.property_names, &name->list);
++cur_arg;
}
return 0;
}
static int _51d_property_separator(char **args, int section_type, struct proxy *curpx,
const struct proxy *defpx, const char *file, int line,
char **err)
{
if (*(args[1]) == 0) {
memprintf(err,
"'%s' expects a single character.",
args[0]);
return -1;
}
if (strlen(args[1]) > 1) {
memprintf(err,
"'%s' expects a single character, got '%s'.",
args[0], args[1]);
return -1;
}
global_51degrees.property_separator = *args[1];
return 0;
}
static int _51d_cache_size(char **args, int section_type, struct proxy *curpx,
const struct proxy *defpx, const char *file, int line,
char **err)
{
if (*(args[1]) == 0) {
memprintf(err,
"'%s' expects a positive numeric value.",
args[0]);
return -1;
}
global_51degrees.cache_size = atoi(args[1]);
if (global_51degrees.cache_size < 0) {
memprintf(err,
"'%s' expects a positive numeric value, got '%s'.",
args[0], args[1]);
return -1;
}
return 0;
}
static int _51d_fetch_check(struct arg *arg, char **err_msg)
{
if (global_51degrees.data_file_path)
return 1;
memprintf(err_msg, "51Degrees data file is not specified (parameter '51degrees-data-file')");
return 0;
}
static int _51d_conv_check(struct arg *arg, struct sample_conv *conv,
const char *file, int line, char **err_msg)
{
if (global_51degrees.data_file_path)
return 1;
memprintf(err_msg, "51Degrees data file is not specified (parameter '51degrees-data-file')");
return 0;
}
#ifdef FIFTYONEDEGREES_H_PATTERN_INCLUDED
static void _51d_lru_free(void *cache_entry)
{
struct buffer *ptr = cache_entry;
if (!ptr)
return;
free(ptr->area);
free(ptr);
}
/* Allocates memory freeing space in the cache if necessary.
*/
static void *_51d_malloc(int size)
{
void *ptr = malloc(size);
if (!ptr) {
/* free the oldest 10 entries from lru to free up some memory
* then try allocating memory again */
lru64_kill_oldest(_51d_lru_tree, 10);
ptr = malloc(size);
}
return ptr;
}
/* Insert the data associated with the sample into the cache as a fresh item.
*/
static void _51d_insert_cache_entry(struct sample *smp, struct lru64 *lru, void* domain)
{
struct buffer *cache_entry = _51d_malloc(sizeof(*cache_entry));
if (!cache_entry)
return;
cache_entry->area = _51d_malloc(smp->data.u.str.data + 1);
if (!cache_entry->area) {
free(cache_entry);
return;
}
memcpy(cache_entry->area, smp->data.u.str.area, smp->data.u.str.data);
cache_entry->area[smp->data.u.str.data] = 0;
cache_entry->data = smp->data.u.str.data;
HA_SPIN_LOCK(OTHER_LOCK, &_51d_lru_lock);
lru64_commit(lru, cache_entry, domain, 0, _51d_lru_free);
HA_SPIN_UNLOCK(OTHER_LOCK, &_51d_lru_lock);
}
/* Retrieves the data from the cache and sets the sample data to this string.
*/
static void _51d_retrieve_cache_entry(struct sample *smp, struct lru64 *lru)
{
struct buffer *cache_entry = lru->data;
smp->data.u.str.area = cache_entry->area;
smp->data.u.str.data = cache_entry->data;
}
#endif
#ifdef FIFTYONEDEGREES_H_PATTERN_INCLUDED
/* Sets the important HTTP headers ahead of the detection
*/
static void _51d_set_headers(struct sample *smp, fiftyoneDegreesWorkset *ws)
{
struct channel *chn;
struct htx *htx;
struct http_hdr_ctx ctx;
struct ist name;
int i;
ws->importantHeadersCount = 0;
chn = (smp->strm ? &smp->strm->req : NULL);
// No need to null check as this has already been carried out in the
// calling method
htx = smp_prefetch_htx(smp, chn, NULL, 1);
ALREADY_CHECKED(htx);
for (i = 0; i < global_51degrees.header_count; i++) {
name = ist2((global_51degrees.header_names + i)->area,
(global_51degrees.header_names + i)->data);
ctx.blk = NULL;
if (http_find_header(htx, name, &ctx, 1)) {
ws->importantHeaders[ws->importantHeadersCount].header = ws->dataSet->httpHeaders + i;
ws->importantHeaders[ws->importantHeadersCount].headerValue = ctx.value.ptr;
ws->importantHeaders[ws->importantHeadersCount].headerValueLength = ctx.value.len;
ws->importantHeadersCount++;
}
}
}
#endif
#ifdef FIFTYONEDEGREES_H_TRIE_INCLUDED
static void _51d_init_device_offsets(fiftyoneDegreesDeviceOffsets *offsets) {
int i;
for (i = 0; i < global_51degrees.data_set.uniqueHttpHeaders.count; i++) {
offsets->firstOffset[i].userAgent = NULL;
}
}
static void _51d_set_device_offsets(struct sample *smp, fiftyoneDegreesDeviceOffsets *offsets)
{
struct channel *chn;
struct htx *htx;
struct http_hdr_ctx ctx;
struct ist name;
int i;
offsets->size = 0;
chn = (smp->strm ? &smp->strm->req : NULL);
// No need to null check as this has already been carried out in the
// calling method
htx = smp_prefetch_htx(smp, chn, NULL, 1);
ALREADY_CHECKED(htx);
for (i = 0; i < global_51degrees.header_count; i++) {
name = ist2((global_51degrees.header_names + i)->area,
(global_51degrees.header_names + i)->data);
ctx.blk = NULL;
if (http_find_header(htx, name, &ctx, 1)) {
(offsets->firstOffset + offsets->size)->httpHeaderOffset = *(global_51degrees.header_offsets + i);
(offsets->firstOffset + offsets->size)->deviceOffset = fiftyoneDegreesGetDeviceOffset(&global_51degrees.data_set, ctx.value.ptr);
offsets->size++;
}
}
}
#endif
#ifdef FIFTYONEDEGREES_H_PATTERN_INCLUDED
/* Provides a hash code for the important HTTP headers.
*/
unsigned long long _51d_req_hash(const struct arg *args, fiftyoneDegreesWorkset* ws)
{
unsigned long long seed = _51d_lru_seed ^ (long)args;
unsigned long long hash = 0;
int i;
for(i = 0; i < ws->importantHeadersCount; i++) {
hash ^= ws->importantHeaders[i].header->headerNameOffset;
hash ^= XXH3(ws->importantHeaders[i].headerValue,
ws->importantHeaders[i].headerValueLength,
seed);
}
return hash;
}
#endif
#ifdef FIFTYONE_DEGREES_HASH_INCLUDED
static int _51d_use_perf_graph(char **args, int section_type, struct proxy *curpx,
const struct proxy *defpx, const char *file, int line,
char **err)
{
if (too_many_args(1, args, err, NULL))
return -1;
if (strcmp(args[1], "on") == 0)
global_51degrees.use_perf_graph = 1;
else if (strcmp(args[1], "off") == 0)
global_51degrees.use_perf_graph = 0;
else {
memprintf(err, "'%s' expects either 'on' or 'off' but got '%s'.", args[0], args[1]);
return -1;
}
return 0;
}
static int _51d_use_pred_graph(char **args, int section_type, struct proxy *curpx,
const struct proxy *defpx, const char *file, int line,
char **err)
{
if (too_many_args(1, args, err, NULL))
return -1;
if (strcmp(args[1], "on") == 0)
global_51degrees.use_pred_graph = 1;
else if (strcmp(args[1], "off") == 0)
global_51degrees.use_pred_graph = 0;
else {
memprintf(err, "'%s' expects either 'on' or 'off' but got '%s'.", args[0], args[1]);
return -1;
}
return 0;
}
static int _51d_drift(char **args, int section_type, struct proxy *curpx,
const struct proxy *defpx, const char *file, int line,
char **err)
{
if (*(args[1]) == 0) {
memprintf(err, "'%s' expects a positive numeric value.", args[0]);
return -1;
}
global_51degrees.drift = atoi(args[1]);
if (global_51degrees.drift < 0) {
memprintf(err, "'%s' expects a positive numeric value, got '%s'.",
args[0], args[1]);
return -1;
}
return 0;
}
static int _51d_difference(char **args, int section_type, struct proxy *curpx,
const struct proxy *defpx, const char *file, int line,
char **err)
{
if (*(args[1]) == 0) {
memprintf(err, "'%s' expects a positive numeric value.", args[0]);
return -1;
}
global_51degrees.difference = atoi(args[1]);
if (global_51degrees.difference < 0) {
memprintf(err, "'%s' expects a positive numeric value, got '%s'.",
args[0], args[1]);
return -1;
}
return 0;
}
static int _51d_allow_unmatched(char **args, int section_type, struct proxy *curpx,
const struct proxy *defpx, const char *file, int line,
char **err)
{
if (too_many_args(1, args, err, NULL))
return -1;
if (strcmp(args[1], "on") == 0)
global_51degrees.allow_unmatched = 1;
else if (strcmp(args[1], "off") == 0)
global_51degrees.allow_unmatched = 0;
else {
memprintf(err, "'%s' expects either 'on' or 'off' but got '%s'.", args[0], args[1]);
return -1;
}
return 0;
}
static int _51d_init_internal()
{
fiftyoneDegreesDataSetHash *ds;
int hdr_count;
int i, ret = 0;
ds = (fiftyoneDegreesDataSetHash *)fiftyoneDegreesDataSetGet(&global_51degrees.manager);
hdr_count = ds->b.b.uniqueHeaders->count;
if (hdr_count > _51d_headers.max)
hdr_count = _51d_headers.max;
_51d_results = fiftyoneDegreesResultsHashCreate(&global_51degrees.manager, hdr_count, 0);
if (!_51d_results)
goto out;
for (i = 0; i < hdr_count; i++) {
_51d_headers.buf[i] = malloc(_51D_HEADERS_BUFFER_SIZE);
if (!_51d_headers.buf[i])
goto out;
_51d_headers.count++;
}
/* success */
ret = 1;
out:
fiftyoneDegreesDataSetRelease((fiftyoneDegreesDataSetBase *)ds);
return ret;
}
static fiftyoneDegreesEvidenceKeyValuePairArray * _51d_get_evidence(struct sample *smp)
{
fiftyoneDegreesEvidenceKeyValuePairArray *evidence;
fiftyoneDegreesDataSetHash *ds;
size_t size;
struct channel *chn;
struct htx *htx;
struct http_hdr_ctx ctx;
struct ist name;
int i;
chn = (smp->strm ? &smp->strm->req : NULL);
// No need to null check as this has already been carried out in the
// calling method
htx = smp_prefetch_htx(smp, chn, NULL, 1);
ALREADY_CHECKED(htx);
ds = (fiftyoneDegreesDataSetHash *)_51d_results->b.b.dataSet;
size = _51d_headers.count * 2;
evidence = fiftyoneDegreesEvidenceCreate(size);
if (!evidence)
return NULL;
for (i = 0; i < _51d_headers.count; i++) {
fiftyoneDegreesHeader *hdr = &ds->b.b.uniqueHeaders->items[i];
name = ist2(hdr->name, hdr->nameLength);
ctx.blk = NULL;
if (http_find_header(htx, name, &ctx, 1)) {
size_t len = ctx.value.len;
if (unlikely(len >= _51D_HEADERS_BUFFER_SIZE))
len = _51D_HEADERS_BUFFER_SIZE - 1;
memcpy(_51d_headers.buf[i], ctx.value.ptr, len);
_51d_headers.buf[i][len] = '\0';
fiftyoneDegreesEvidenceAddString(
evidence,
FIFTYONE_DEGREES_EVIDENCE_HTTP_HEADER_STRING,
name.ptr,
_51d_headers.buf[i]);
}
}
return evidence;
}
#endif
#if defined(FIFTYONEDEGREES_H_PATTERN_INCLUDED) || defined(FIFTYONEDEGREES_H_TRIE_INCLUDED)
#ifdef FIFTYONEDEGREES_H_PATTERN_INCLUDED
static void _51d_process_match(const struct arg *args, struct sample *smp, fiftyoneDegreesWorkset* ws)
{
char *methodName;
#endif
#ifdef FIFTYONEDEGREES_H_TRIE_INCLUDED
static void _51d_process_match(const struct arg *args, struct sample *smp, fiftyoneDegreesDeviceOffsets *offsets)
{
char valuesBuffer[1024];
const char **requiredProperties = fiftyoneDegreesGetRequiredPropertiesNames(&global_51degrees.data_set);
int requiredPropertiesCount = fiftyoneDegreesGetRequiredPropertiesCount(&global_51degrees.data_set);
#endif
const char* property_name;
int j;
#elif defined(FIFTYONE_DEGREES_HASH_INCLUDED)
static void _51d_process_match(const struct arg *args, struct sample *smp)
{
char valuesBuffer[1024];
#endif
char no_data[] = "NoData"; /* response when no data could be found */
struct buffer *temp = get_trash_chunk();
int i = 0, found;
#if defined(FIFTYONE_DEGREES_HASH_INCLUDED)
FIFTYONE_DEGREES_EXCEPTION_CREATE;
#endif
/* Loop through property names passed to the filter and fetch them from the dataset. */
while (args[i].data.str.area) {
/* Try to find request property in dataset. */
found = 0;
#ifdef FIFTYONEDEGREES_H_PATTERN_INCLUDED
if (strcmp("Method", args[i].data.str.area) == 0) {
switch(ws->method) {
case EXACT: methodName = "Exact"; break;
case NUMERIC: methodName = "Numeric"; break;
case NEAREST: methodName = "Nearest"; break;
case CLOSEST: methodName = "Closest"; break;
default:
case NONE: methodName = "None"; break;
}
chunk_appendf(temp, "%s", methodName);
found = 1;
}
else if (strcmp("Difference", args[i].data.str.area) == 0) {
chunk_appendf(temp, "%d", ws->difference);
found = 1;
}
else if (strcmp("Rank", args[i].data.str.area) == 0) {
chunk_appendf(temp, "%d", fiftyoneDegreesGetSignatureRank(ws));
found = 1;
}
else {
for (j = 0; j < ws->dataSet->requiredPropertyCount; j++) {
property_name = fiftyoneDegreesGetPropertyName(ws->dataSet, ws->dataSet->requiredProperties[j]);
if (strcmp(property_name, args[i].data.str.area) == 0) {
found = 1;
fiftyoneDegreesSetValues(ws, j);
chunk_appendf(temp, "%s", fiftyoneDegreesGetValueName(ws->dataSet, *ws->values));
break;
}
}
}
#endif
#ifdef FIFTYONEDEGREES_H_TRIE_INCLUDED
found = 0;
for (j = 0; j < requiredPropertiesCount; j++) {
property_name = requiredProperties[j];
if (strcmp(property_name, args[i].data.str.area) == 0 &&
fiftyoneDegreesGetValueFromOffsets(&global_51degrees.data_set, offsets, j, valuesBuffer, 1024) > 0) {
found = 1;
chunk_appendf(temp, "%s", valuesBuffer);
break;
}
}
#endif
#ifdef FIFTYONE_DEGREES_HASH_INCLUDED
FIFTYONE_DEGREES_EXCEPTION_CLEAR;
found = fiftyoneDegreesResultsHashGetValuesString(
_51d_results, args[i].data.str.area,
valuesBuffer, 1024, "|",
exception);
if (FIFTYONE_DEGREES_EXCEPTION_FAILED || found <= 0)
found = 0;
else
chunk_appendf(temp, "%s", valuesBuffer);
#endif
if (!found)
chunk_appendf(temp, "%s", no_data);
/* Add separator. */
chunk_appendf(temp, "%c", global_51degrees.property_separator);
++i;
}
if (temp->data) {
--temp->data;
temp->area[temp->data] = '\0';
}
smp->data.u.str.area = temp->area;
smp->data.u.str.data = temp->data;
}
/* Sets the sample data as a constant string. This ensures that the
* string will be processed correctly.
*/
static void _51d_set_smp(struct sample *smp)
{
/*
* Data type has to be set to ensure the string output is processed
* correctly.
*/
smp->data.type = SMP_T_STR;
/* Flags the sample to show it uses constant memory. */
smp->flags |= SMP_F_CONST;
}
static int _51d_fetch(const struct arg *args, struct sample *smp, const char *kw, void *private)
{
struct channel *chn;
struct htx *htx;
#ifdef FIFTYONEDEGREES_H_PATTERN_INCLUDED
fiftyoneDegreesWorkset* ws; /* workset for detection */
struct lru64 *lru = NULL;
#endif
#ifdef FIFTYONEDEGREES_H_TRIE_INCLUDED
fiftyoneDegreesDeviceOffsets *offsets; /* Offsets for detection */
#endif
#ifdef FIFTYONE_DEGREES_HASH_INCLUDED
fiftyoneDegreesEvidenceKeyValuePairArray *evidence = NULL;
FIFTYONE_DEGREES_EXCEPTION_CREATE;
#endif
chn = (smp->strm ? &smp->strm->req : NULL);
htx = smp_prefetch_htx(smp, chn, NULL, 1);
if (!htx)
return 0;
#ifdef FIFTYONEDEGREES_H_PATTERN_INCLUDED
/* Get only the headers needed for device detection so they can be used
* with the cache to return previous results. Pattern is slower than
* Trie so caching will help improve performance.
*/
/* Get a workset from the pool which will later contain detection results. */
ws = fiftyoneDegreesWorksetPoolGet(global_51degrees.pool);
if (!ws)
return 0;
/* Set the important HTTP headers for this request in the workset. */
_51d_set_headers(smp, ws);
/* Check the cache to see if there's results for these headers already. */
if (_51d_lru_tree) {
HA_SPIN_LOCK(OTHER_LOCK, &_51d_lru_lock);
lru = lru64_get(_51d_req_hash(args, ws),
_51d_lru_tree, (void*)args, 0);
if (lru && lru->domain) {
fiftyoneDegreesWorksetPoolRelease(global_51degrees.pool, ws);
_51d_retrieve_cache_entry(smp, lru);
HA_SPIN_UNLOCK(OTHER_LOCK, &_51d_lru_lock);
_51d_set_smp(smp);
return 1;
}
HA_SPIN_UNLOCK(OTHER_LOCK, &_51d_lru_lock);
}
fiftyoneDegreesMatchForHttpHeaders(ws);
_51d_process_match(args, smp, ws);
#endif
#ifdef FIFTYONEDEGREES_H_TRIE_INCLUDED
#ifndef FIFTYONEDEGREES_NO_THREADING
offsets = fiftyoneDegreesCreateDeviceOffsets(&global_51degrees.data_set);
_51d_init_device_offsets(offsets);
#else
offsets = &global_51degrees.device_offsets;
#endif
/* Trie is very fast so all the headers can be passed in and the result
* returned faster than the hashing algorithm process.
*/
_51d_set_device_offsets(smp, offsets);
_51d_process_match(args, smp, offsets);
#ifndef FIFTYONEDEGREES_NO_THREADING
fiftyoneDegreesFreeDeviceOffsets(offsets);
#endif
#endif
#ifdef FIFTYONEDEGREES_H_PATTERN_INCLUDED
fiftyoneDegreesWorksetPoolRelease(global_51degrees.pool, ws);
if (lru)
_51d_insert_cache_entry(smp, lru, (void*)args);
#endif
#ifdef FIFTYONE_DEGREES_HASH_INCLUDED
evidence = _51d_get_evidence(smp);
if (!evidence)
return 0;
fiftyoneDegreesResultsHashFromEvidence(
_51d_results, evidence, exception);
fiftyoneDegreesEvidenceFree(evidence);
if (FIFTYONE_DEGREES_EXCEPTION_FAILED)
return 0;
_51d_process_match(args, smp);
#endif
_51d_set_smp(smp);
return 1;
}
static int _51d_conv(const struct arg *args, struct sample *smp, void *private)
{
#ifdef FIFTYONEDEGREES_H_PATTERN_INCLUDED
fiftyoneDegreesWorkset* ws; /* workset for detection */
struct lru64 *lru = NULL;
#endif
#ifdef FIFTYONEDEGREES_H_TRIE_INCLUDED
fiftyoneDegreesDeviceOffsets *offsets; /* Offsets for detection */
#endif
#ifdef FIFTYONE_DEGREES_HASH_INCLUDED
FIFTYONE_DEGREES_EXCEPTION_CREATE;
#endif
#ifdef FIFTYONEDEGREES_H_PATTERN_INCLUDED
/* Look in the list. */
if (_51d_lru_tree) {
unsigned long long seed = _51d_lru_seed ^ (long)args;
HA_SPIN_LOCK(OTHER_LOCK, &_51d_lru_lock);
lru = lru64_get(XXH3(smp->data.u.str.area, smp->data.u.str.data, seed),
_51d_lru_tree, (void*)args, 0);
if (lru && lru->domain) {
_51d_retrieve_cache_entry(smp, lru);
HA_SPIN_UNLOCK(OTHER_LOCK, &_51d_lru_lock);
return 1;
}
HA_SPIN_UNLOCK(OTHER_LOCK, &_51d_lru_lock);
}
/* Create workset. This will later contain detection results. */
ws = fiftyoneDegreesWorksetPoolGet(global_51degrees.pool);
if (!ws)
return 0;
#endif
/* Duplicate the data and remove the "const" flag before device detection. */
if (!smp_dup(smp))
return 0;
smp->data.u.str.area[smp->data.u.str.data] = '\0';
/* Perform detection. */
#if defined(FIFTYONEDEGREES_H_PATTERN_INCLUDED) || defined(FIFTYONEDEGREES_H_TRIE_INCLUDED)
#ifdef FIFTYONEDEGREES_H_PATTERN_INCLUDED
fiftyoneDegreesMatch(ws, smp->data.u.str.area);
_51d_process_match(args, smp, ws);
#endif
#ifdef FIFTYONEDEGREES_H_TRIE_INCLUDED
#ifndef FIFTYONEDEGREES_NO_THREADING
offsets = fiftyoneDegreesCreateDeviceOffsets(&global_51degrees.data_set);
_51d_init_device_offsets(offsets);
#else
offsets = &global_51degrees.device_offsets;
#endif
offsets->firstOffset->deviceOffset = fiftyoneDegreesGetDeviceOffset(&global_51degrees.data_set,
smp->data.u.str.area);
offsets->size = 1;
_51d_process_match(args, smp, offsets);
#endif
#ifdef FIFTYONEDEGREES_H_PATTERN_INCLUDED
fiftyoneDegreesWorksetPoolRelease(global_51degrees.pool, ws);
if (lru)
_51d_insert_cache_entry(smp, lru, (void*)args);
#endif
#ifdef FIFTYONEDEGREES_H_TRIE_INCLUDED
#ifndef FIFTYONEDEGREES_NO_THREADING
fiftyoneDegreesFreeDeviceOffsets(offsets);
#endif
#endif
#elif defined(FIFTYONE_DEGREES_HASH_INCLUDED)
fiftyoneDegreesResultsHashFromUserAgent(_51d_results, smp->data.u.str.area,
smp->data.u.str.data, exception);
if (FIFTYONE_DEGREES_EXCEPTION_FAILED)
return 0;
_51d_process_match(args, smp);
#endif
_51d_set_smp(smp);
return 1;
}
#ifdef FIFTYONEDEGREES_H_PATTERN_INCLUDED
void _51d_init_http_headers()
{
int index = 0;
const fiftyoneDegreesAsciiString *headerName;
fiftyoneDegreesDataSet *ds = &global_51degrees.data_set;
global_51degrees.header_count = ds->httpHeadersCount;
global_51degrees.header_names = malloc(global_51degrees.header_count * sizeof(struct buffer));
for (index = 0; index < global_51degrees.header_count; index++) {
headerName = fiftyoneDegreesGetString(ds, ds->httpHeaders[index].headerNameOffset);
(global_51degrees.header_names + index)->area = (char*)&headerName->firstByte;
(global_51degrees.header_names + index)->data = headerName->length - 1;
(global_51degrees.header_names + index)->size = (global_51degrees.header_names + index)->data;
}
}
#endif
#ifdef FIFTYONEDEGREES_H_TRIE_INCLUDED
void _51d_init_http_headers()
{
int index = 0;
fiftyoneDegreesDataSet *ds = &global_51degrees.data_set;
global_51degrees.header_count = fiftyoneDegreesGetHttpHeaderCount(ds);
#ifdef FIFTYONEDEGREES_NO_THREADING
global_51degrees.device_offsets.firstOffset = malloc(
global_51degrees.header_count * sizeof(fiftyoneDegreesDeviceOffset));
_51d_init_device_offsets(&global_51degrees.device_offsets);
#endif
global_51degrees.header_names = malloc(global_51degrees.header_count * sizeof(struct buffer));
global_51degrees.header_offsets = malloc(global_51degrees.header_count * sizeof(int32_t));
for (index = 0; index < global_51degrees.header_count; index++) {
global_51degrees.header_offsets[index] = fiftyoneDegreesGetHttpHeaderNameOffset(ds, index);
global_51degrees.header_names[index].area = (char*)fiftyoneDegreesGetHttpHeaderNamePointer(ds, index);
global_51degrees.header_names[index].data = strlen(global_51degrees.header_names[index].area);
global_51degrees.header_names[index].size = global_51degrees.header_names->data;
}
}
#endif
/*
* module init / deinit functions. Returns 0 if OK, or a combination of ERR_*.
*/
static int init_51degrees(void)
{
int i = 0;
struct _51d_property_names *name;
char **_51d_property_list = NULL;
#if defined(FIFTYONEDEGREES_H_PATTERN_INCLUDED) || defined(FIFTYONEDEGREES_H_TRIE_INCLUDED)
struct buffer *temp;
fiftyoneDegreesDataSetInitStatus _51d_dataset_status = DATA_SET_INIT_STATUS_NOT_SET;
#elif defined(FIFTYONE_DEGREES_HASH_INCLUDED)
fiftyoneDegreesConfigHash config = fiftyoneDegreesHashInMemoryConfig;
fiftyoneDegreesPropertiesRequired properties = fiftyoneDegreesPropertiesDefault;
fiftyoneDegreesMemoryReader reader;
fiftyoneDegreesStatusCode status;
FIFTYONE_DEGREES_EXCEPTION_CREATE;
#endif
if (!global_51degrees.data_file_path)
return ERR_NONE;
if (global.nbthread < 1) {
ha_alert("51Degrees: The thread count cannot be zero or negative.\n");
return (ERR_FATAL | ERR_ALERT);
}
if (!LIST_ISEMPTY(&global_51degrees.property_names)) {
i = 0;
list_for_each_entry(name, &global_51degrees.property_names, list)
++i;
_51d_property_list = calloc(i, sizeof(*_51d_property_list));
i = 0;
list_for_each_entry(name, &global_51degrees.property_names, list)
_51d_property_list[i++] = name->name;
}
#if defined(FIFTYONEDEGREES_H_PATTERN_INCLUDED) || defined(FIFTYONEDEGREES_H_TRIE_INCLUDED)
_51d_dataset_status = fiftyoneDegreesInitWithPropertyArray(global_51degrees.data_file_path, &global_51degrees.data_set, (const char**)_51d_property_list, i);
temp = get_trash_chunk();
chunk_reset(temp);
switch (_51d_dataset_status) {
case DATA_SET_INIT_STATUS_SUCCESS:
#ifdef FIFTYONEDEGREES_H_PATTERN_INCLUDED
global_51degrees.pool = fiftyoneDegreesWorksetPoolCreate(&global_51degrees.data_set, NULL, global.nbthread);
#endif
_51d_init_http_headers();
break;
case DATA_SET_INIT_STATUS_INSUFFICIENT_MEMORY:
chunk_printf(temp, "Insufficient memory.");
break;
case DATA_SET_INIT_STATUS_CORRUPT_DATA:
#ifdef FIFTYONEDEGREES_H_PATTERN_INCLUDED
chunk_printf(temp, "Corrupt data file. Check that the data file provided is uncompressed and Pattern data format.");
#endif
#ifdef FIFTYONEDEGREES_H_TRIE_INCLUDED
chunk_printf(temp, "Corrupt data file. Check that the data file provided is uncompressed and Trie data format.");
#endif
break;
case DATA_SET_INIT_STATUS_INCORRECT_VERSION:
#ifdef FIFTYONEDEGREES_H_PATTERN_INCLUDED
chunk_printf(temp, "Incorrect version. Check that the data file provided is uncompressed and Pattern data format.");
#endif
#ifdef FIFTYONEDEGREES_H_TRIE_INCLUDED
chunk_printf(temp, "Incorrect version. Check that the data file provided is uncompressed and Trie data format.");
#endif
break;
case DATA_SET_INIT_STATUS_FILE_NOT_FOUND:
chunk_printf(temp, "File not found.");
break;
case DATA_SET_INIT_STATUS_NULL_POINTER:
chunk_printf(temp, "Null pointer to the existing dataset or memory location.");
break;
case DATA_SET_INIT_STATUS_POINTER_OUT_OF_BOUNDS:
chunk_printf(temp, "Allocated continuous memory containing 51Degrees data file appears to be smaller than expected. Most likely"
" because the data file was not fully loaded into the allocated memory.");
break;
case DATA_SET_INIT_STATUS_NOT_SET:
chunk_printf(temp, "Data set not initialised.");
break;
default:
chunk_printf(temp, "Other error.");
break;
}
if (_51d_dataset_status != DATA_SET_INIT_STATUS_SUCCESS) {
if (temp->data)
ha_alert("51Degrees Setup - Error reading 51Degrees data file. %s\n",
temp->area);
else
ha_alert("51Degrees Setup - Error reading 51Degrees data file.\n");
return ERR_ALERT | ERR_FATAL;
}
free(_51d_property_list);
#ifdef FIFTYONEDEGREES_H_PATTERN_INCLUDED
_51d_lru_seed = ha_random();
if (global_51degrees.cache_size) {
_51d_lru_tree = lru64_new(global_51degrees.cache_size);
}
#endif
#elif defined(FIFTYONE_DEGREES_HASH_INCLUDED)
config.b.b.freeData = true;
if (global_51degrees.use_perf_graph != -1)
config.usePerformanceGraph = global_51degrees.use_perf_graph;
if (global_51degrees.use_pred_graph != -1)
config.usePredictiveGraph = global_51degrees.use_pred_graph;
if (global_51degrees.drift > 0)
config.drift = global_51degrees.drift;
if (global_51degrees.difference > 0)
config.difference = global_51degrees.difference;
if (global_51degrees.allow_unmatched != -1)
config.b.allowUnmatched = global_51degrees.allow_unmatched;
config.strings.concurrency =
config.properties.concurrency =
config.values.concurrency =
config.profiles.concurrency =
config.nodes.concurrency =
config.profileOffsets.concurrency =
config.maps.concurrency =
config.components.concurrency =
config.rootNodes.concurrency = global.nbthread;
properties.array = (const char **)_51d_property_list;
properties.count = i;
status = fiftyoneDegreesFileReadToByteArray(global_51degrees.data_file_path, &reader);
if (status == FIFTYONE_DEGREES_STATUS_SUCCESS && !FIFTYONE_DEGREES_EXCEPTION_FAILED) {
FIFTYONE_DEGREES_EXCEPTION_CLEAR;
status = fiftyoneDegreesHashInitManagerFromMemory(
&global_51degrees.manager,
&config,
&properties,
reader.startByte,
reader.length,
exception);
}
free(_51d_property_list);
_51d_property_list = NULL;
i = 0;
if (status != FIFTYONE_DEGREES_STATUS_SUCCESS || FIFTYONE_DEGREES_EXCEPTION_FAILED) {
const char *message = fiftyoneDegreesStatusGetMessage(status, global_51degrees.data_file_path);
if (message)
ha_alert("51Degrees Setup - Error reading 51Degrees data file. %s\n",
message);
else
ha_alert("51Degrees Setup - Error reading 51Degrees data file.\n");
return ERR_ALERT | ERR_FATAL;
}
#endif
return ERR_NONE;
}
static void deinit_51degrees(void)
{
struct _51d_property_names *_51d_prop_name, *_51d_prop_nameb;
#if defined(FIFTYONEDEGREES_H_PATTERN_INCLUDED) || defined(FIFTYONEDEGREES_H_TRIE_INCLUDED)
free(global_51degrees.header_names);
#ifdef FIFTYONEDEGREES_H_PATTERN_INCLUDED
if (global_51degrees.pool)
fiftyoneDegreesWorksetPoolFree(global_51degrees.pool);
#endif
#ifdef FIFTYONEDEGREES_H_TRIE_INCLUDED
#ifdef FIFTYONEDEGREES_NO_THREADING
free(global_51degrees.device_offsets.firstOffset);
#endif
free(global_51degrees.header_offsets);
#endif
fiftyoneDegreesDataSetFree(&global_51degrees.data_set);
#endif
ha_free(&global_51degrees.data_file_path);
list_for_each_entry_safe(_51d_prop_name, _51d_prop_nameb, &global_51degrees.property_names, list) {
LIST_DELETE(&_51d_prop_name->list);
free(_51d_prop_name);
}
#ifdef FIFTYONEDEGREES_H_PATTERN_INCLUDED
while (lru64_destroy(_51d_lru_tree));
#endif
}
#ifdef FIFTYONE_DEGREES_HASH_INCLUDED
static int init_51degrees_per_thread()
{
if (!global_51degrees.data_file_path) {
/* noop */
return 1;
}
_51d_headers.max = global.tune.max_http_hdr;
_51d_headers.buf = calloc(_51d_headers.max, sizeof(*_51d_headers.buf));
_51d_headers.count = 0;
if (!_51d_headers.buf)
return 0;
if (!_51d_init_internal())
return 0;
return 1;
}
static void deinit_51degrees_per_thread()
{
int i;
if (_51d_results) {
fiftyoneDegreesResultsHashFree(_51d_results);
_51d_results = NULL;
}
if (_51d_headers.buf) {
for (i = 0; i < _51d_headers.max; i++)
free(_51d_headers.buf[i]);
free(_51d_headers.buf);
_51d_headers.buf = NULL;
}
_51d_headers.max = 0;
_51d_headers.count = 0;
}
#endif
static struct cfg_kw_list _51dcfg_kws = {{ }, {
{ CFG_GLOBAL, "51degrees-data-file", _51d_data_file },
{ CFG_GLOBAL, "51degrees-property-name-list", _51d_property_name_list },
{ CFG_GLOBAL, "51degrees-property-separator", _51d_property_separator },
{ CFG_GLOBAL, "51degrees-cache-size", _51d_cache_size },
#ifdef FIFTYONE_DEGREES_HASH_INCLUDED
{ CFG_GLOBAL, "51degrees-use-performance-graph", _51d_use_perf_graph },
{ CFG_GLOBAL, "51degrees-use-predictive-graph", _51d_use_pred_graph },
{ CFG_GLOBAL, "51degrees-drift", _51d_drift },
{ CFG_GLOBAL, "51degrees-difference", _51d_difference },
{ CFG_GLOBAL, "51degrees-allow-unmatched", _51d_allow_unmatched },
#endif
{ 0, NULL, NULL },
}};
INITCALL1(STG_REGISTER, cfg_register_keywords, &_51dcfg_kws);
/* Note: must not be declared <const> as its list will be overwritten */
static struct sample_fetch_kw_list sample_fetch_keywords = {ILH, {
{ "51d.all", _51d_fetch, ARG5(1,STR,STR,STR,STR,STR), _51d_fetch_check, SMP_T_STR, SMP_USE_HRQHV },
{ NULL, NULL, 0, 0, 0 },
}};
INITCALL1(STG_REGISTER, sample_register_fetches, &sample_fetch_keywords);
/* Note: must not be declared <const> as its list will be overwritten */
static struct sample_conv_kw_list conv_kws = {ILH, {
{ "51d.single", _51d_conv, ARG5(1,STR,STR,STR,STR,STR), _51d_conv_check, SMP_T_STR, SMP_T_STR },
{ NULL, NULL, 0, 0, 0 },
}};
INITCALL1(STG_REGISTER, sample_register_convs, &conv_kws);
REGISTER_POST_CHECK(init_51degrees);
REGISTER_POST_DEINIT(deinit_51degrees);
#if defined(FIFTYONEDEGREES_H_PATTERN_INCLUDED)
#ifndef FIFTYONEDEGREES_DUMMY_LIB
REGISTER_BUILD_OPTS("Built with 51Degrees Pattern support.");
#else
REGISTER_BUILD_OPTS("Built with 51Degrees Pattern support (dummy library).");
#endif
#elif defined(FIFTYONEDEGREES_H_TRIE_INCLUDED)
#ifndef FIFTYONEDEGREES_DUMMY_LIB
REGISTER_BUILD_OPTS("Built with 51Degrees Trie support.");
#else
REGISTER_BUILD_OPTS("Built with 51Degrees Trie support (dummy library).");
#endif
#elif defined(FIFTYONE_DEGREES_HASH_INCLUDED)
REGISTER_PER_THREAD_INIT(init_51degrees_per_thread);
REGISTER_PER_THREAD_DEINIT(deinit_51degrees_per_thread);
#ifndef FIFTYONEDEGREES_DUMMY_LIB
REGISTER_BUILD_OPTS("Built with 51Degrees V4 Hash support.");
#else
REGISTER_BUILD_OPTS("Built with 51Degrees V4 Hash support (dummy library).");
#endif
#endif
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