sikkienl/dash
1
0
Fork 0
mirror of https://github.com/dashpay/dash.git synced 2024-12-27 13:03:17 +01:00
Code Issues Actions Packages Projects Releases Wiki Activity

Increase test coverage for addrman and addrinfo

Browse Source 
Adds several unittests for CAddrMan and CAddrInfo.
Increases the accuracy of addrman tests.
Removes non-determinism in tests by overriding the random number generator.
Extracts testing code from addrman class to test class.
This commit is contained in:
Ethan Heilman 2015-12-12 22:34:08 -05:00 committed by EthanHeilman
parent 473ad1bb02
commit 40c87b6e69
3 changed files with 391 additions and 49 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
src/addrman.cpp
View File

@ -220,7 +220,7 @@ void CAddrMan::Good_(const CService& addr, int64_t nTime)
return; return;
// find a bucket it is in now // find a bucket it is in now
int nRnd = GetRandInt(ADDRMAN_NEW_BUCKET_COUNT); int nRnd = RandomInt(ADDRMAN_NEW_BUCKET_COUNT);
int nUBucket = -1; int nUBucket = -1;
for (unsigned int n = 0; n < ADDRMAN_NEW_BUCKET_COUNT; n++) { for (unsigned int n = 0; n < ADDRMAN_NEW_BUCKET_COUNT; n++) {
int nB = (n + nRnd) % ADDRMAN_NEW_BUCKET_COUNT; int nB = (n + nRnd) % ADDRMAN_NEW_BUCKET_COUNT;
@ -277,7 +277,7 @@ bool CAddrMan::Add_(const CAddress& addr, const CNetAddr& source, int64_t nTimeP
int nFactor = 1; int nFactor = 1;
for (int n = 0; n < pinfo->nRefCount; n++) for (int n = 0; n < pinfo->nRefCount; n++)
nFactor *= 2; nFactor *= 2;
if (nFactor > 1 && (GetRandInt(nFactor) != 0)) if (nFactor > 1 && (RandomInt(nFactor) != 0))
return false; return false;
} else { } else {
pinfo = Create(addr, source, &nId); pinfo = Create(addr, source, &nId);
@ -339,12 +339,12 @@ CAddrInfo CAddrMan::Select_(bool newOnly)
// Use a 50% chance for choosing between tried and new table entries. // Use a 50% chance for choosing between tried and new table entries.
if (!newOnly && if (!newOnly &&
(nTried > 0 && (nNew == 0 || GetRandInt(2) == 0))) { (nTried > 0 && (nNew == 0 || RandomInt(2) == 0))) {
// use a tried node // use a tried node
double fChanceFactor = 1.0; double fChanceFactor = 1.0;
while (1) { while (1) {
int nKBucket = GetRandInt(ADDRMAN_TRIED_BUCKET_COUNT); int nKBucket = RandomInt(ADDRMAN_TRIED_BUCKET_COUNT);
int nKBucketPos = GetRandInt(ADDRMAN_BUCKET_SIZE); int nKBucketPos = RandomInt(ADDRMAN_BUCKET_SIZE);
while (vvTried[nKBucket][nKBucketPos] == -1) { while (vvTried[nKBucket][nKBucketPos] == -1) {
nKBucket = (nKBucket + insecure_rand()) % ADDRMAN_TRIED_BUCKET_COUNT; nKBucket = (nKBucket + insecure_rand()) % ADDRMAN_TRIED_BUCKET_COUNT;
nKBucketPos = (nKBucketPos + insecure_rand()) % ADDRMAN_BUCKET_SIZE; nKBucketPos = (nKBucketPos + insecure_rand()) % ADDRMAN_BUCKET_SIZE;
@ -352,7 +352,7 @@ CAddrInfo CAddrMan::Select_(bool newOnly)
int nId = vvTried[nKBucket][nKBucketPos]; int nId = vvTried[nKBucket][nKBucketPos];
assert(mapInfo.count(nId) == 1); assert(mapInfo.count(nId) == 1);
CAddrInfo& info = mapInfo[nId]; CAddrInfo& info = mapInfo[nId];
if (GetRandInt(1 << 30) < fChanceFactor * info.GetChance() * (1 << 30)) if (RandomInt(1 << 30) < fChanceFactor * info.GetChance() * (1 << 30))
return info; return info;
fChanceFactor *= 1.2; fChanceFactor *= 1.2;
} }
@ -360,8 +360,8 @@ CAddrInfo CAddrMan::Select_(bool newOnly)
// use a new node // use a new node
double fChanceFactor = 1.0; double fChanceFactor = 1.0;
while (1) { while (1) {
int nUBucket = GetRandInt(ADDRMAN_NEW_BUCKET_COUNT); int nUBucket = RandomInt(ADDRMAN_NEW_BUCKET_COUNT);
int nUBucketPos = GetRandInt(ADDRMAN_BUCKET_SIZE); int nUBucketPos = RandomInt(ADDRMAN_BUCKET_SIZE);
while (vvNew[nUBucket][nUBucketPos] == -1) { while (vvNew[nUBucket][nUBucketPos] == -1) {
nUBucket = (nUBucket + insecure_rand()) % ADDRMAN_NEW_BUCKET_COUNT; nUBucket = (nUBucket + insecure_rand()) % ADDRMAN_NEW_BUCKET_COUNT;
nUBucketPos = (nUBucketPos + insecure_rand()) % ADDRMAN_BUCKET_SIZE; nUBucketPos = (nUBucketPos + insecure_rand()) % ADDRMAN_BUCKET_SIZE;
@ -369,7 +369,7 @@ CAddrInfo CAddrMan::Select_(bool newOnly)
int nId = vvNew[nUBucket][nUBucketPos]; int nId = vvNew[nUBucket][nUBucketPos];
assert(mapInfo.count(nId) == 1); assert(mapInfo.count(nId) == 1);
CAddrInfo& info = mapInfo[nId]; CAddrInfo& info = mapInfo[nId];
if (GetRandInt(1 << 30) < fChanceFactor * info.GetChance() * (1 << 30)) if (RandomInt(1 << 30) < fChanceFactor * info.GetChance() * (1 << 30))
return info; return info;
fChanceFactor *= 1.2; fChanceFactor *= 1.2;
} }
@ -465,7 +465,7 @@ void CAddrMan::GetAddr_(std::vector<CAddress>& vAddr)
if (vAddr.size() >= nNodes) if (vAddr.size() >= nNodes)
break; break;
int nRndPos = GetRandInt(vRandom.size() - n) + n; int nRndPos = RandomInt(vRandom.size() - n) + n;
SwapRandom(n, nRndPos); SwapRandom(n, nRndPos);
assert(mapInfo.count(vRandom[n]) == 1); assert(mapInfo.count(vRandom[n]) == 1);
@ -494,3 +494,7 @@ void CAddrMan::Connected_(const CService& addr, int64_t nTime)
if (nTime - info.nTime > nUpdateInterval) if (nTime - info.nTime > nUpdateInterval)
info.nTime = nTime; info.nTime = nTime;
} }
int CAddrMan::RandomInt(int nMax){
return GetRandInt(nMax);
}

13
src/addrman.h
View File

@ -175,9 +175,6 @@ private:
//! critical section to protect the inner data structures //! critical section to protect the inner data structures
mutable CCriticalSection cs; mutable CCriticalSection cs;
//! secret key to randomize bucket select with
uint256 nKey;
//! last used nId //! last used nId
int nIdCount; int nIdCount;
@ -203,6 +200,8 @@ private:
int vvNew[ADDRMAN_NEW_BUCKET_COUNT][ADDRMAN_BUCKET_SIZE]; int vvNew[ADDRMAN_NEW_BUCKET_COUNT][ADDRMAN_BUCKET_SIZE];
protected: protected:
//! secret key to randomize bucket select with
uint256 nKey;
//! Find an entry. //! Find an entry.
CAddrInfo* Find(const CNetAddr& addr, int *pnId = NULL); CAddrInfo* Find(const CNetAddr& addr, int *pnId = NULL);
@ -235,6 +234,9 @@ protected:
//! Select an address to connect to, if newOnly is set to true, only the new table is selected from. //! Select an address to connect to, if newOnly is set to true, only the new table is selected from.
CAddrInfo Select_(bool newOnly); CAddrInfo Select_(bool newOnly);
//! Wraps GetRandInt to allow tests to override RandomInt and make it determinismistic.
virtual int RandomInt(int nMax);
#ifdef DEBUG_ADDRMAN #ifdef DEBUG_ADDRMAN
//! Perform consistency check. Returns an error code or zero. //! Perform consistency check. Returns an error code or zero.
int Check_(); int Check_();
@ -570,11 +572,6 @@ public:
} }
} }
//! Ensure that bucket placement is always the same for testing purposes.
void MakeDeterministic(){
nKey.SetNull(); //Do not use outside of tests.
}
}; };
#endif // BITCOIN_ADDRMAN_H #endif // BITCOIN_ADDRMAN_H

399
src/test/addrman_tests.cpp
View File

@ -6,11 +6,49 @@
#include <string> #include <string>
#include <boost/test/unit_test.hpp> #include <boost/test/unit_test.hpp>
#include "hash.h"
#include "random.h" #include "random.h"
using namespace std; using namespace std;
class CAddrManTest : public CAddrMan{}; class CAddrManTest : public CAddrMan
{
uint64_t state;
public:
CAddrManTest()
{
state = 1;
}
//! Ensure that bucket placement is always the same for testing purposes.
void MakeDeterministic()
{
nKey.SetNull();
seed_insecure_rand(true);
}
int RandomInt(int nMax)
{
state = (CHashWriter(SER_GETHASH, 0) << state).GetHash().GetCheapHash();
return (unsigned int)(state % nMax);
}
CAddrInfo* Find(const CNetAddr& addr, int* pnId = NULL)
{
return CAddrMan::Find(addr, pnId);
}
CAddrInfo* Create(const CAddress& addr, const CNetAddr& addrSource, int* pnId = NULL)
{
return CAddrMan::Create(addr, addrSource, pnId);
}
void Delete(int nId)
{
CAddrMan::Delete(nId);
}
};
BOOST_FIXTURE_TEST_SUITE(addrman_tests, BasicTestingSetup) BOOST_FIXTURE_TEST_SUITE(addrman_tests, BasicTestingSetup)
@ -21,7 +59,7 @@ BOOST_AUTO_TEST_CASE(addrman_simple)
// Set addrman addr placement to be deterministic. // Set addrman addr placement to be deterministic.
addrman.MakeDeterministic(); addrman.MakeDeterministic();
CNetAddr source = CNetAddr("252.2.2.2:8333"); CNetAddr source = CNetAddr("252.2.2.2");
// Test 1: Does Addrman respond correctly when empty. // Test 1: Does Addrman respond correctly when empty.
BOOST_CHECK(addrman.size() == 0); BOOST_CHECK(addrman.size() == 0);
@ -29,7 +67,7 @@ BOOST_AUTO_TEST_CASE(addrman_simple)
BOOST_CHECK(addr_null.ToString() == "[::]:0"); BOOST_CHECK(addr_null.ToString() == "[::]:0");
// Test 2: Does Addrman::Add work as expected. // Test 2: Does Addrman::Add work as expected.
CService addr1 = CService("250.1.1.1:8333"); CService addr1 = CService("250.1.1.1", 8333);
addrman.Add(CAddress(addr1), source); addrman.Add(CAddress(addr1), source);
BOOST_CHECK(addrman.size() == 1); BOOST_CHECK(addrman.size() == 1);
CAddrInfo addr_ret1 = addrman.Select(); CAddrInfo addr_ret1 = addrman.Select();
@ -37,14 +75,14 @@ BOOST_AUTO_TEST_CASE(addrman_simple)
// Test 3: Does IP address deduplication work correctly. // Test 3: Does IP address deduplication work correctly.
// Expected dup IP should not be added. // Expected dup IP should not be added.
CService addr1_dup = CService("250.1.1.1:8333"); CService addr1_dup = CService("250.1.1.1", 8333);
addrman.Add(CAddress(addr1_dup), source); addrman.Add(CAddress(addr1_dup), source);
BOOST_CHECK(addrman.size() == 1); BOOST_CHECK(addrman.size() == 1);
// Test 5: New table has one addr and we add a diff addr we should // Test 5: New table has one addr and we add a diff addr we should
// have two addrs. // have two addrs.
CService addr2 = CService("250.1.1.2:8333"); CService addr2 = CService("250.1.1.2", 8333);
addrman.Add(CAddress(addr2), source); addrman.Add(CAddress(addr2), source);
BOOST_CHECK(addrman.size() == 2); BOOST_CHECK(addrman.size() == 2);
@ -62,16 +100,16 @@ BOOST_AUTO_TEST_CASE(addrman_ports)
// Set addrman addr placement to be deterministic. // Set addrman addr placement to be deterministic.
addrman.MakeDeterministic(); addrman.MakeDeterministic();
CNetAddr source = CNetAddr("252.2.2.2:8333"); CNetAddr source = CNetAddr("252.2.2.2");
BOOST_CHECK(addrman.size() == 0); BOOST_CHECK(addrman.size() == 0);
// Test 7; Addr with same IP but diff port does not replace existing addr. // Test 7; Addr with same IP but diff port does not replace existing addr.
CService addr1 = CService("250.1.1.1:8333"); CService addr1 = CService("250.1.1.1", 8333);
addrman.Add(CAddress(addr1), source); addrman.Add(CAddress(addr1), source);
BOOST_CHECK(addrman.size() == 1); BOOST_CHECK(addrman.size() == 1);
CService addr1_port = CService("250.1.1.1:8334"); CService addr1_port = CService("250.1.1.1", 8334);
addrman.Add(CAddress(addr1_port), source); addrman.Add(CAddress(addr1_port), source);
BOOST_CHECK(addrman.size() == 1); BOOST_CHECK(addrman.size() == 1);
CAddrInfo addr_ret2 = addrman.Select(); CAddrInfo addr_ret2 = addrman.Select();
@ -94,10 +132,10 @@ BOOST_AUTO_TEST_CASE(addrman_select)
// Set addrman addr placement to be deterministic. // Set addrman addr placement to be deterministic.
addrman.MakeDeterministic(); addrman.MakeDeterministic();
CNetAddr source = CNetAddr("252.2.2.2:8333"); CNetAddr source = CNetAddr("252.2.2.2");
// Test 9: Select from new with 1 addr in new. // Test 9: Select from new with 1 addr in new.
CService addr1 = CService("250.1.1.1:8333"); CService addr1 = CService("250.1.1.1", 8333);
addrman.Add(CAddress(addr1), source); addrman.Add(CAddress(addr1), source);
BOOST_CHECK(addrman.size() == 1); BOOST_CHECK(addrman.size() == 1);
@ -105,7 +143,6 @@ BOOST_AUTO_TEST_CASE(addrman_select)
CAddrInfo addr_ret1 = addrman.Select(newOnly); CAddrInfo addr_ret1 = addrman.Select(newOnly);
BOOST_CHECK(addr_ret1.ToString() == "250.1.1.1:8333"); BOOST_CHECK(addr_ret1.ToString() == "250.1.1.1:8333");
// Test 10: move addr to tried, select from new expected nothing returned. // Test 10: move addr to tried, select from new expected nothing returned.
addrman.Good(CAddress(addr1)); addrman.Good(CAddress(addr1));
BOOST_CHECK(addrman.size() == 1); BOOST_CHECK(addrman.size() == 1);
@ -114,6 +151,39 @@ BOOST_AUTO_TEST_CASE(addrman_select)
CAddrInfo addr_ret3 = addrman.Select(); CAddrInfo addr_ret3 = addrman.Select();
BOOST_CHECK(addr_ret3.ToString() == "250.1.1.1:8333"); BOOST_CHECK(addr_ret3.ToString() == "250.1.1.1:8333");
BOOST_CHECK(addrman.size() == 1);
// Add three addresses to new table.
CService addr2 = CService("250.3.1.1", 8333);
CService addr3 = CService("250.3.2.2", 9999);
CService addr4 = CService("250.3.3.3", 9999);
addrman.Add(CAddress(addr2), CService("250.3.1.1", 8333));
addrman.Add(CAddress(addr3), CService("250.3.1.1", 8333));
addrman.Add(CAddress(addr4), CService("250.4.1.1", 8333));
// Add three addresses to tried table.
CService addr5 = CService("250.4.4.4", 8333);
CService addr6 = CService("250.4.5.5", 7777);
CService addr7 = CService("250.4.6.6", 8333);
addrman.Add(CAddress(addr5), CService("250.3.1.1", 8333));
addrman.Good(CAddress(addr5));
addrman.Add(CAddress(addr6), CService("250.3.1.1", 8333));
addrman.Good(CAddress(addr6));
addrman.Add(CAddress(addr7), CService("250.1.1.3", 8333));
addrman.Good(CAddress(addr7));
// Test 11: 6 addrs + 1 addr from last test = 7.
BOOST_CHECK(addrman.size() == 7);
// Test 12: Select pulls from new and tried regardless of port number.
BOOST_CHECK(addrman.Select().ToString() == "250.4.6.6:8333");
BOOST_CHECK(addrman.Select().ToString() == "250.3.2.2:9999");
BOOST_CHECK(addrman.Select().ToString() == "250.3.3.3:9999");
BOOST_CHECK(addrman.Select().ToString() == "250.4.4.4:8333");
} }
BOOST_AUTO_TEST_CASE(addrman_new_collisions) BOOST_AUTO_TEST_CASE(addrman_new_collisions)
@ -123,26 +193,26 @@ BOOST_AUTO_TEST_CASE(addrman_new_collisions)
// Set addrman addr placement to be deterministic. // Set addrman addr placement to be deterministic.
addrman.MakeDeterministic(); addrman.MakeDeterministic();
CNetAddr source = CNetAddr("252.2.2.2:8333"); CNetAddr source = CNetAddr("252.2.2.2");
BOOST_CHECK(addrman.size() == 0); BOOST_CHECK(addrman.size() == 0);
for (unsigned int i = 1; i < 4; i++){ for (unsigned int i = 1; i < 18; i++) {
CService addr = CService("250.1.1."+boost::to_string(i)); CService addr = CService("250.1.1." + boost::to_string(i));
addrman.Add(CAddress(addr), source); addrman.Add(CAddress(addr), source);
//Test 11: No collision in new table yet. //Test 13: No collision in new table yet.
BOOST_CHECK(addrman.size() == i); BOOST_CHECK(addrman.size() == i);
} }
//Test 12: new table collision! //Test 14: new table collision!
CService addr1 = CService("250.1.1.4"); CService addr1 = CService("250.1.1.18");
addrman.Add(CAddress(addr1), source); addrman.Add(CAddress(addr1), source);
BOOST_CHECK(addrman.size() == 3); BOOST_CHECK(addrman.size() == 17);
CService addr2 = CService("250.1.1.5"); CService addr2 = CService("250.1.1.19");
addrman.Add(CAddress(addr2), source); addrman.Add(CAddress(addr2), source);
BOOST_CHECK(addrman.size() == 4); BOOST_CHECK(addrman.size() == 18);
} }
BOOST_AUTO_TEST_CASE(addrman_tried_collisions) BOOST_AUTO_TEST_CASE(addrman_tried_collisions)
@ -152,29 +222,300 @@ BOOST_AUTO_TEST_CASE(addrman_tried_collisions)
// Set addrman addr placement to be deterministic. // Set addrman addr placement to be deterministic.
addrman.MakeDeterministic(); addrman.MakeDeterministic();
CNetAddr source = CNetAddr("252.2.2.2:8333"); CNetAddr source = CNetAddr("252.2.2.2");
BOOST_CHECK(addrman.size() == 0); BOOST_CHECK(addrman.size() == 0);
for (unsigned int i = 1; i < 75; i++){ for (unsigned int i = 1; i < 80; i++) {
CService addr = CService("250.1.1."+boost::to_string(i)); CService addr = CService("250.1.1." + boost::to_string(i));
addrman.Add(CAddress(addr), source); addrman.Add(CAddress(addr), source);
addrman.Good(CAddress(addr)); addrman.Good(CAddress(addr));
//Test 13: No collision in tried table yet. //Test 15: No collision in tried table yet.
BOOST_TEST_MESSAGE(addrman.size()); BOOST_TEST_MESSAGE(addrman.size());
BOOST_CHECK(addrman.size() == i); BOOST_CHECK(addrman.size() == i);
} }
//Test 14: tried table collision! //Test 16: tried table collision!
CService addr1 = CService("250.1.1.76"); CService addr1 = CService("250.1.1.80");
addrman.Add(CAddress(addr1), source); addrman.Add(CAddress(addr1), source);
BOOST_CHECK(addrman.size() == 74); BOOST_CHECK(addrman.size() == 79);
CService addr2 = CService("250.1.1.77"); CService addr2 = CService("250.1.1.81");
addrman.Add(CAddress(addr2), source); addrman.Add(CAddress(addr2), source);
BOOST_CHECK(addrman.size() == 75); BOOST_CHECK(addrman.size() == 80);
}
BOOST_AUTO_TEST_CASE(addrman_find)
{
CAddrManTest addrman;
// Set addrman addr placement to be deterministic.
addrman.MakeDeterministic();
BOOST_CHECK(addrman.size() == 0);
CAddress addr1 = CAddress(CService("250.1.2.1", 8333));
CAddress addr2 = CAddress(CService("250.1.2.1", 9999));
CAddress addr3 = CAddress(CService("251.255.2.1", 8333));
CNetAddr source1 = CNetAddr("250.1.2.1");
CNetAddr source2 = CNetAddr("250.1.2.2");
addrman.Add(addr1, source1);
addrman.Add(addr2, source2);
addrman.Add(addr3, source1);
// Test 17: ensure Find returns an IP matching what we searched on.
CAddrInfo* info1 = addrman.Find(addr1);
BOOST_CHECK(info1);
if (info1)
BOOST_CHECK(info1->ToString() == "250.1.2.1:8333");
// Test 18; Find does not discriminate by port number.
CAddrInfo* info2 = addrman.Find(addr2);
BOOST_CHECK(info2);
if (info2)
BOOST_CHECK(info2->ToString() == info1->ToString());
// Test 19: Find returns another IP matching what we searched on.
CAddrInfo* info3 = addrman.Find(addr3);
BOOST_CHECK(info3);
if (info3)
BOOST_CHECK(info3->ToString() == "251.255.2.1:8333");
}
BOOST_AUTO_TEST_CASE(addrman_create)
{
CAddrManTest addrman;
// Set addrman addr placement to be deterministic.
addrman.MakeDeterministic();
BOOST_CHECK(addrman.size() == 0);
CAddress addr1 = CAddress(CService("250.1.2.1", 8333));
CNetAddr source1 = CNetAddr("250.1.2.1");
int nId;
CAddrInfo* pinfo = addrman.Create(addr1, source1, &nId);
// Test 20: The result should be the same as the input addr.
BOOST_CHECK(pinfo->ToString() == "250.1.2.1:8333");
CAddrInfo* info2 = addrman.Find(addr1);
BOOST_CHECK(info2->ToString() == "250.1.2.1:8333");
} }
BOOST_AUTO_TEST_CASE(addrman_delete)
{
CAddrManTest addrman;
// Set addrman addr placement to be deterministic.
addrman.MakeDeterministic();
BOOST_CHECK(addrman.size() == 0);
CAddress addr1 = CAddress(CService("250.1.2.1", 8333));
CNetAddr source1 = CNetAddr("250.1.2.1");
int nId;
addrman.Create(addr1, source1, &nId);
// Test 21: Delete should actually delete the addr.
BOOST_CHECK(addrman.size() == 1);
addrman.Delete(nId);
BOOST_CHECK(addrman.size() == 0);
CAddrInfo* info2 = addrman.Find(addr1);
BOOST_CHECK(info2 == NULL);
}
BOOST_AUTO_TEST_CASE(addrman_getaddr)
{
CAddrManTest addrman;
// Set addrman addr placement to be deterministic.
addrman.MakeDeterministic();
// Test 22: Sanity check, GetAddr should never return anything if addrman
// is empty.
BOOST_CHECK(addrman.size() == 0);
vector<CAddress> vAddr1 = addrman.GetAddr();
BOOST_CHECK(vAddr1.size() == 0);
CAddress addr1 = CAddress(CService("250.250.2.1", 8333));
addr1.nTime = GetAdjustedTime(); // Set time so isTerrible = false
CAddress addr2 = CAddress(CService("250.251.2.2", 9999));
addr2.nTime = GetAdjustedTime();
CAddress addr3 = CAddress(CService("251.252.2.3", 8333));
addr3.nTime = GetAdjustedTime();
CAddress addr4 = CAddress(CService("252.253.3.4", 8333));
addr4.nTime = GetAdjustedTime();
CAddress addr5 = CAddress(CService("252.254.4.5", 8333));
addr5.nTime = GetAdjustedTime();
CNetAddr source1 = CNetAddr("250.1.2.1");
CNetAddr source2 = CNetAddr("250.2.3.3");
// Test 23: Ensure GetAddr works with new addresses.
addrman.Add(addr1, source1);
addrman.Add(addr2, source2);
addrman.Add(addr3, source1);
addrman.Add(addr4, source2);
addrman.Add(addr5, source1);
// GetAddr returns 23% of addresses, 23% of 5 is 1 rounded down.
BOOST_CHECK(addrman.GetAddr().size() == 1);
// Test 24: Ensure GetAddr works with new and tried addresses.
addrman.Good(CAddress(addr1));
addrman.Good(CAddress(addr2));
BOOST_CHECK(addrman.GetAddr().size() == 1);
// Test 25: Ensure GetAddr still returns 23% when addrman has many addrs.
for (unsigned int i = 1; i < (8 * 256); i++) {
int octet1 = i % 256;
int octet2 = (i / 256) % 256;
int octet3 = (i / (256 * 2)) % 256;
string strAddr = boost::to_string(octet1) + "." + boost::to_string(octet2) + "." + boost::to_string(octet3) + ".23";
CAddress addr = CAddress(CService(strAddr));
// Ensure that for all addrs in addrman, isTerrible == false.
addr.nTime = GetAdjustedTime();
addrman.Add(addr, CNetAddr(strAddr));
if (i % 8 == 0)
addrman.Good(addr);
}
vector<CAddress> vAddr = addrman.GetAddr();
size_t percent23 = (addrman.size() * 23) / 100;
BOOST_CHECK(vAddr.size() == percent23);
BOOST_CHECK(vAddr.size() == 461);
// (Addrman.size() < number of addresses added) due to address collisons.
BOOST_CHECK(addrman.size() == 2007);
}
BOOST_AUTO_TEST_CASE(caddrinfo_get_tried_bucket)
{
CAddrManTest addrman;
// Set addrman addr placement to be deterministic.
addrman.MakeDeterministic();
CAddress addr1 = CAddress(CService("250.1.1.1", 8333));
CAddress addr2 = CAddress(CService("250.1.1.1", 9999));
CNetAddr source1 = CNetAddr("250.1.1.1");
CAddrInfo info1 = CAddrInfo(addr1, source1);
uint256 nKey1 = (uint256)(CHashWriter(SER_GETHASH, 0) << 1).GetHash();
uint256 nKey2 = (uint256)(CHashWriter(SER_GETHASH, 0) << 2).GetHash();
BOOST_CHECK(info1.GetTriedBucket(nKey1) == 40);
// Test 26: Make sure key actually randomizes bucket placement. A fail on
// this test could be a security issue.
BOOST_CHECK(info1.GetTriedBucket(nKey1) != info1.GetTriedBucket(nKey2));
// Test 27: Two addresses with same IP but different ports can map to
// different buckets because they have different keys.
CAddrInfo info2 = CAddrInfo(addr2, source1);
BOOST_CHECK(info1.GetKey() != info2.GetKey());
BOOST_CHECK(info1.GetTriedBucket(nKey1) != info2.GetTriedBucket(nKey1));
set<int> buckets;
for (int i = 0; i < 255; i++) {
CAddrInfo infoi = CAddrInfo(
CAddress(CService("250.1.1." + boost::to_string(i))),
CNetAddr("250.1.1." + boost::to_string(i)));
int bucket = infoi.GetTriedBucket(nKey1);
buckets.insert(bucket);
}
// Test 28: IP addresses in the same group (\16 prefix for IPv4) should
// never get more than 8 buckets
BOOST_CHECK(buckets.size() == 8);
buckets.clear();
for (int j = 0; j < 255; j++) {
CAddrInfo infoj = CAddrInfo(
CAddress(CService("250." + boost::to_string(j) + ".1.1")),
CNetAddr("250." + boost::to_string(j) + ".1.1"));
int bucket = infoj.GetTriedBucket(nKey1);
buckets.insert(bucket);
}
// Test 29: IP addresses in the different groups should map to more than
// 8 buckets.
BOOST_CHECK(buckets.size() == 160);
}
BOOST_AUTO_TEST_CASE(caddrinfo_get_new_bucket)
{
CAddrManTest addrman;
// Set addrman addr placement to be deterministic.
addrman.MakeDeterministic();
CAddress addr1 = CAddress(CService("250.1.2.1", 8333));
CAddress addr2 = CAddress(CService("250.1.2.1", 9999));
CNetAddr source1 = CNetAddr("250.1.2.1");
CAddrInfo info1 = CAddrInfo(addr1, source1);
uint256 nKey1 = (uint256)(CHashWriter(SER_GETHASH, 0) << 1).GetHash();
uint256 nKey2 = (uint256)(CHashWriter(SER_GETHASH, 0) << 2).GetHash();
BOOST_CHECK(info1.GetNewBucket(nKey1) == 786);
// Test 30: Make sure key actually randomizes bucket placement. A fail on
// this test could be a security issue.
BOOST_CHECK(info1.GetNewBucket(nKey1) != info1.GetNewBucket(nKey2));
// Test 31: Ports should not effect bucket placement in the addr
CAddrInfo info2 = CAddrInfo(addr2, source1);
BOOST_CHECK(info1.GetKey() != info2.GetKey());
BOOST_CHECK(info1.GetNewBucket(nKey1) == info2.GetNewBucket(nKey1));
set<int> buckets;
for (int i = 0; i < 255; i++) {
CAddrInfo infoi = CAddrInfo(
CAddress(CService("250.1.1." + boost::to_string(i))),
CNetAddr("250.1.1." + boost::to_string(i)));
int bucket = infoi.GetNewBucket(nKey1);
buckets.insert(bucket);
}
// Test 32: IP addresses in the same group (\16 prefix for IPv4) should
// always map to the same bucket.
BOOST_CHECK(buckets.size() == 1);
buckets.clear();
for (int j = 0; j < 4 * 255; j++) {
CAddrInfo infoj = CAddrInfo(CAddress(
CService(
boost::to_string(250 + (j / 255)) + "." + boost::to_string(j % 256) + ".1.1")),
CNetAddr("251.4.1.1"));
int bucket = infoj.GetNewBucket(nKey1);
buckets.insert(bucket);
}
// Test 33: IP addresses in the same source groups should map to no more
// than 64 buckets.
BOOST_CHECK(buckets.size() <= 64);
buckets.clear();
for (int p = 0; p < 255; p++) {
CAddrInfo infoj = CAddrInfo(
CAddress(CService("250.1.1.1")),
CNetAddr("250." + boost::to_string(p) + ".1.1"));
int bucket = infoj.GetNewBucket(nKey1);
buckets.insert(bucket);
}
// Test 34: IP addresses in the different source groups should map to more
// than 64 buckets.
BOOST_CHECK(buckets.size() > 64);
}
BOOST_AUTO_TEST_SUITE_END() BOOST_AUTO_TEST_SUITE_END()