X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Flistensocket.cpp;h=4805b77176e0f2f36c5d423017c2da713c620139;hb=9ad873886e518bf3621a88e8c48607ab79020c0a;hp=b56e970253533a3de9b421bd6513b66c7601aaba;hpb=3b595d39a50e38283768bc6ec8aeb9e73071224f;p=user%2Fhenk%2Fcode%2Finspircd.git

diff --git a/src/listensocket.cpp b/src/listensocket.cpp
index b56e97025..4805b7717 100644
--- a/src/listensocket.cpp
+++ b/src/listensocket.cpp
@@ -27,12 +27,18 @@
 
 ListenSocket::ListenSocket(ConfigTag* tag, const irc::sockets::sockaddrs& bind_to)
 	: bind_tag(tag)
+	, bind_sa(bind_to)
 {
-	bind_addr = bind_to.addr();
-	bind_port = bind_to.port();
-	bind_desc = bind_to.str();
+	// Are we creating a UNIX socket?
+	if (bind_to.family() == AF_UNIX)
+	{
+		// Is 'replace' enabled?
+		const bool replace = tag->getBool("replace");
+		if (replace && irc::sockets::isunix(bind_to.str()))
+			unlink(bind_to.str().c_str());
+	}
 
-	fd = socket(bind_to.sa.sa_family, SOCK_STREAM, 0);
+	fd = socket(bind_to.family(), SOCK_STREAM, 0);
 
 	if (this->fd == -1)
 		return;
@@ -44,7 +50,7 @@ ListenSocket::ListenSocket(ConfigTag* tag, const irc::sockets::sockaddrs& bind_t
 	 * is "::" or an IPv6 address, disable support so that an IPv4 bind will
 	 * work on the port (by us or another application).
 	 */
-	if (bind_to.sa.sa_family == AF_INET6)
+	if (bind_to.family() == AF_INET6)
 	{
 		std::string addr = tag->getString("address");
 		/* This must be >= sizeof(DWORD) on Windows */
@@ -69,6 +75,14 @@ ListenSocket::ListenSocket(ConfigTag* tag, const irc::sockets::sockaddrs& bind_t
 #endif
 	}
 
+	if (bind_to.family() == AF_UNIX)
+	{
+		const std::string permissionstr = tag->getString("permissions");
+		unsigned int permissions = strtoul(permissionstr.c_str(), NULL, 8);
+		if (permissions && permissions <= 07777)
+			chmod(bind_to.str().c_str(), permissions);
+	}
+
 	SocketEngine::SetReuse(fd);
 	int rv = SocketEngine::Bind(this->fd, bind_to);
 	if (rv >= 0)
@@ -111,20 +125,24 @@ ListenSocket::~ListenSocket()
 	{
 		ServerInstance->Logs->Log("SOCKET", LOG_DEBUG, "Shut down listener on fd %d", this->fd);
 		SocketEngine::Shutdown(this, 2);
+
 		if (SocketEngine::Close(this) != 0)
 			ServerInstance->Logs->Log("SOCKET", LOG_DEBUG, "Failed to cancel listener: %s", strerror(errno));
+
+		if (bind_sa.family() == AF_UNIX && unlink(bind_sa.un.sun_path))
+			ServerInstance->Logs->Log("SOCKET", LOG_DEBUG, "Failed to unlink UNIX socket: %s", strerror(errno));
 	}
 }
 
 void ListenSocket::OnEventHandlerRead()
 {
 	irc::sockets::sockaddrs client;
-	irc::sockets::sockaddrs server;
+	irc::sockets::sockaddrs server(bind_sa);
 
 	socklen_t length = sizeof(client);
 	int incomingSockfd = SocketEngine::Accept(this, &client.sa, &length);
 
-	ServerInstance->Logs->Log("SOCKET", LOG_DEBUG, "Accepting connection on socket %s fd %d", bind_desc.c_str(), incomingSockfd);
+	ServerInstance->Logs->Log("SOCKET", LOG_DEBUG, "Accepting connection on socket %s fd %d", bind_sa.str().c_str(), incomingSockfd);
 	if (incomingSockfd < 0)
 	{
 		ServerInstance->stats.Refused++;
@@ -135,10 +153,9 @@ void ListenSocket::OnEventHandlerRead()
 	if (getsockname(incomingSockfd, &server.sa, &sz))
 	{
 		ServerInstance->Logs->Log("SOCKET", LOG_DEBUG, "Can't get peername: %s", strerror(errno));
-		irc::sockets::aptosa(bind_addr, bind_port, server);
 	}
 
-	if (client.sa.sa_family == AF_INET6)
+	if (client.family() == AF_INET6)
 	{
 		/*
 		 * This case is the be all and end all patch to catch and nuke 4in6
@@ -167,6 +184,14 @@ void ListenSocket::OnEventHandlerRead()
 			memcpy(&server.in4.sin_addr.s_addr, server.in6.sin6_addr.s6_addr + 12, sizeof(uint32_t));
 		}
 	}
+	else if (client.family() == AF_UNIX)
+	{
+		// Clients connecting via UNIX sockets don't have paths so give them
+		// the server path as defined in RFC 1459 section 8.1.1.
+		//
+		// strcpy is safe here because sizeof(sockaddr_un.sun_path) is equal on both.
+		strcpy(client.un.sun_path, server.un.sun_path);
+	}
 
 	SocketEngine::NonBlocking(incomingSockfd);
 
@@ -175,7 +200,7 @@ void ListenSocket::OnEventHandlerRead()
 	if (res == MOD_RES_PASSTHRU)
 	{
 		std::string type = bind_tag->getString("type", "clients");
-		if (type == "clients")
+		if (stdalgo::string::equalsci(type, "clients"))
 		{
 			ServerInstance->Users->AddUser(incomingSockfd, this, &client, &server);
 			res = MOD_RES_ALLOW;
@@ -189,7 +214,7 @@ void ListenSocket::OnEventHandlerRead()
 	{
 		ServerInstance->stats.Refused++;
 		ServerInstance->Logs->Log("SOCKET", LOG_DEFAULT, "Refusing connection on %s - %s",
-			bind_desc.c_str(), res == MOD_RES_DENY ? "Connection refused by module" : "Module for this port not found");
+			bind_sa.str().c_str(), res == MOD_RES_DENY ? "Connection refused by module" : "Module for this port not found");
 		SocketEngine::Close(incomingSockfd);
 	}
 }