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Merge bitcoin/bitcoin#26078: p2p: return CSubNet in LookupSubNet

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fb3e812277 p2p: return `CSubNet` in `LookupSubNet` (brunoerg)

Pull request description:

  Analyzing the usage of `LookupSubNet`, noticed that most cases uses check if the subnet is valid by calling `subnet.IsValid()`, and the boolean returned by `LookupSubNet` hasn't been used so much, see:
  29d540b7ad/src/httpserver.cpp (L172-L174)
  29d540b7ad/src/net_permissions.cpp (L114-L116)

  It makes sense to return `CSubNet` instead of `bool`.

ACKs for top commit:
  achow101:
    ACK fb3e812277
  vasild:
    ACK fb3e812277
  theStack:
    Code-review ACK fb3e812277
  stickies-v:
    Concept ACK, but Approach ~0 (for now). Reviewed the code (fb3e812277) and it all looks good to me.

Tree-SHA512: ba50d6bd5d58dfdbe1ce1faebd80dd8cf8c92ac53ef33519860b83399afffab482d5658cb6921b849d7a3df6d5cea911412850e08f3f4e27f7af510fbde4b254
This commit is contained in:
Andrew Chow
2023-10-26 14:21:40 -04:00
parent 5572f98f05 fb3e812277
commit 7be62df80f
8 changed files with 101 additions and 115 deletions
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3
src/httpserver.cpp
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@@ -224,8 +224,7 @@ static bool InitHTTPAllowList()
rpc_allow_subnets.emplace_back(LookupHost("127.0.0.1", false).value(), 8); // always allow IPv4 local subnet
rpc_allow_subnets.emplace_back(LookupHost("::1", false).value()); // always allow IPv6 localhost
for (const std::string& strAllow : gArgs.GetArgs("-rpcallowip")) {
CSubNet subnet;
LookupSubNet(strAllow, subnet);
const CSubNet subnet{LookupSubNet(strAllow)};
if (!subnet.IsValid()) {
uiInterface.ThreadSafeMessageBox(
strprintf(Untranslated("Invalid -rpcallowip subnet specification: %s. Valid are a single IP (e.g. 1.2.3.4), a network/netmask (e.g. 1.2.3.4/255.255.255.0) or a network/CIDR (e.g. 1.2.3.4/24)."), strAllow),