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| author | John Newbery <john@johnnewbery.com> | 2020-07-23 15:34:40 +0100 |
|---|---|---|
| committer | John Newbery <john@johnnewbery.com> | 2020-08-12 09:22:07 +0100 |
| commit | f26502e9fc8a669b30717525597e3f468eaecf79 (patch) | |
| tree | 828ca2eb39f9889bab4d2fb6ca09126d790883fc /src/net_processing.cpp | |
| parent | 3c93623be20d534bb653410db03d38152135e2e6 (diff) | |
| download | bitcoin-f26502e9fc8a669b30717525597e3f468eaecf79.tar.xz | |
[addrman] Specify max addresses and pct when calling GetAddresses()
CAddrMan.GetAddr() would previously limit the number and percentage of
addresses returned (to ADDRMAN_GETADDR_MAX (1000) and
ADDRMAN_GETADDR_MAX_PCT (23) respectively). Instead, make it the callers
responsibility to specify the maximum addresses and percentage they want
returned.
For net_processing, the maximums are MAX_ADDR_TO_SEND (1000) and
MAX_PCT_ADDR_TO_SEND (23). For rpc/net, the maximum is specified by the
client.
Diffstat (limited to 'src/net_processing.cpp')
| -rw-r--r-- | src/net_processing.cpp | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/src/net_processing.cpp b/src/net_processing.cpp index c503a97be5..1530da8d7f 100644 --- a/src/net_processing.cpp +++ b/src/net_processing.cpp @@ -143,6 +143,8 @@ static constexpr unsigned int MAX_FEEFILTER_CHANGE_DELAY = 5 * 60; static constexpr uint32_t MAX_GETCFILTERS_SIZE = 1000; /** Maximum number of cf hashes that may be requested with one getcfheaders. See BIP 157. */ static constexpr uint32_t MAX_GETCFHEADERS_SIZE = 2000; +/** the maximum percentage of addresses from our addrman to return in response to a getaddr message. */ +static constexpr size_t MAX_PCT_ADDR_TO_SEND = 23; struct COrphanTx { // When modifying, adapt the copy of this definition in tests/DoS_tests. @@ -3476,9 +3478,9 @@ void ProcessMessage( pfrom.vAddrToSend.clear(); std::vector<CAddress> vAddr; if (pfrom.HasPermission(PF_ADDR)) { - vAddr = connman.GetAddresses(); + vAddr = connman.GetAddresses(MAX_ADDR_TO_SEND, MAX_PCT_ADDR_TO_SEND); } else { - vAddr = connman.GetAddresses(pfrom.addr.GetNetwork()); + vAddr = connman.GetAddresses(pfrom.addr.GetNetwork(), MAX_ADDR_TO_SEND, MAX_PCT_ADDR_TO_SEND); } FastRandomContext insecure_rand; for (const CAddress &addr : vAddr) { |