CentOS Sources
2 years ago
committed by
MSVSphere Packaging Team
parent
cd23b60889
commit
6363f74a46
@ -0,0 +1,156 @@
|
||||
commit c54122584d175cf1d292b239a5b70f2d1aa77c3a
|
||||
Author: Tomas Korbar <tkorbar@redhat.com>
|
||||
Date: Mon Dec 5 15:03:07 2022 +0100
|
||||
|
||||
Backport adding IP_BIND_ADDRESS_NO_PORT flag to outgoing connections
|
||||
|
||||
diff --git a/src/comm.cc b/src/comm.cc
|
||||
index b4818f3..b18d175 100644
|
||||
--- a/src/comm.cc
|
||||
+++ b/src/comm.cc
|
||||
@@ -59,6 +59,7 @@
|
||||
*/
|
||||
|
||||
static IOCB commHalfClosedReader;
|
||||
+static int comm_openex(int sock_type, int proto, Ip::Address &, int flags, const char *note);
|
||||
static void comm_init_opened(const Comm::ConnectionPointer &conn, const char *note, struct addrinfo *AI);
|
||||
static int comm_apply_flags(int new_socket, Ip::Address &addr, int flags, struct addrinfo *AI);
|
||||
|
||||
@@ -76,6 +77,7 @@ static EVH commHalfClosedCheck;
|
||||
static void commPlanHalfClosedCheck();
|
||||
|
||||
static Comm::Flag commBind(int s, struct addrinfo &);
|
||||
+static void commSetBindAddressNoPort(int);
|
||||
static void commSetReuseAddr(int);
|
||||
static void commSetNoLinger(int);
|
||||
#ifdef TCP_NODELAY
|
||||
@@ -202,6 +204,22 @@ comm_local_port(int fd)
|
||||
return F->local_addr.port();
|
||||
}
|
||||
|
||||
+/// sets the IP_BIND_ADDRESS_NO_PORT socket option to optimize ephemeral port
|
||||
+/// reuse by outgoing TCP connections that must bind(2) to a source IP address
|
||||
+static void
|
||||
+commSetBindAddressNoPort(const int fd)
|
||||
+{
|
||||
+#if defined(IP_BIND_ADDRESS_NO_PORT)
|
||||
+ int flag = 1;
|
||||
+ if (setsockopt(fd, IPPROTO_IP, IP_BIND_ADDRESS_NO_PORT, reinterpret_cast<char*>(&flag), sizeof(flag)) < 0) {
|
||||
+ const auto savedErrno = errno;
|
||||
+ debugs(50, DBG_IMPORTANT, "ERROR: setsockopt(IP_BIND_ADDRESS_NO_PORT) failure: " << xstrerr(savedErrno));
|
||||
+ }
|
||||
+#else
|
||||
+ (void)fd;
|
||||
+#endif
|
||||
+}
|
||||
+
|
||||
static Comm::Flag
|
||||
commBind(int s, struct addrinfo &inaddr)
|
||||
{
|
||||
@@ -228,6 +246,10 @@ comm_open(int sock_type,
|
||||
int flags,
|
||||
const char *note)
|
||||
{
|
||||
+ // assume zero-port callers do not need to know the assigned port right away
|
||||
+ if (sock_type == SOCK_STREAM && addr.port() == 0 && ((flags & COMM_DOBIND) || !addr.isAnyAddr()))
|
||||
+ flags |= COMM_DOBIND_PORT_LATER;
|
||||
+
|
||||
return comm_openex(sock_type, proto, addr, flags, note);
|
||||
}
|
||||
|
||||
@@ -329,7 +351,7 @@ comm_set_transparent(int fd)
|
||||
* Create a socket. Default is blocking, stream (TCP) socket. IO_TYPE
|
||||
* is OR of flags specified in defines.h:COMM_*
|
||||
*/
|
||||
-int
|
||||
+static int
|
||||
comm_openex(int sock_type,
|
||||
int proto,
|
||||
Ip::Address &addr,
|
||||
@@ -488,6 +510,9 @@ comm_apply_flags(int new_socket,
|
||||
}
|
||||
}
|
||||
#endif
|
||||
+ if ((flags & COMM_DOBIND_PORT_LATER))
|
||||
+ commSetBindAddressNoPort(new_socket);
|
||||
+
|
||||
if (commBind(new_socket, *AI) != Comm::OK) {
|
||||
comm_close(new_socket);
|
||||
return -1;
|
||||
diff --git a/src/comm.h b/src/comm.h
|
||||
index 5a1a7c2..a9f33db 100644
|
||||
--- a/src/comm.h
|
||||
+++ b/src/comm.h
|
||||
@@ -43,7 +43,6 @@ void comm_import_opened(const Comm::ConnectionPointer &, const char *note, struc
|
||||
|
||||
/**
|
||||
* Open a port specially bound for listening or sending through a specific port.
|
||||
- * This is a wrapper providing IPv4/IPv6 failover around comm_openex().
|
||||
* Please use for all listening sockets and bind() outbound sockets.
|
||||
*
|
||||
* It will open a socket bound for:
|
||||
@@ -59,7 +58,6 @@ void comm_import_opened(const Comm::ConnectionPointer &, const char *note, struc
|
||||
int comm_open_listener(int sock_type, int proto, Ip::Address &addr, int flags, const char *note);
|
||||
void comm_open_listener(int sock_type, int proto, Comm::ConnectionPointer &conn, const char *note);
|
||||
|
||||
-int comm_openex(int, int, Ip::Address &, int, const char *);
|
||||
unsigned short comm_local_port(int fd);
|
||||
|
||||
int comm_udp_sendto(int sock, const Ip::Address &to, const void *buf, int buflen);
|
||||
diff --git a/src/comm/ConnOpener.cc b/src/comm/ConnOpener.cc
|
||||
index 19c1237..79fa2ed 100644
|
||||
--- a/src/comm/ConnOpener.cc
|
||||
+++ b/src/comm/ConnOpener.cc
|
||||
@@ -285,7 +285,7 @@ Comm::ConnOpener::createFd()
|
||||
if (callback_ == NULL || callback_->canceled())
|
||||
return false;
|
||||
|
||||
- temporaryFd_ = comm_openex(SOCK_STREAM, IPPROTO_TCP, conn_->local, conn_->flags, host_);
|
||||
+ temporaryFd_ = comm_open(SOCK_STREAM, IPPROTO_TCP, conn_->local, conn_->flags, host_);
|
||||
if (temporaryFd_ < 0) {
|
||||
sendAnswer(Comm::ERR_CONNECT, 0, "Comm::ConnOpener::createFd");
|
||||
return false;
|
||||
diff --git a/src/comm/Connection.h b/src/comm/Connection.h
|
||||
index 40c2249..2641f4e 100644
|
||||
--- a/src/comm/Connection.h
|
||||
+++ b/src/comm/Connection.h
|
||||
@@ -52,6 +52,8 @@ namespace Comm
|
||||
#define COMM_REUSEPORT 0x40 //< needs SO_REUSEPORT
|
||||
/// not registered with Comm and not owned by any connection-closing code
|
||||
#define COMM_ORPHANED 0x40
|
||||
+/// Internal Comm optimization: Keep the source port unassigned until connect(2)
|
||||
+#define COMM_DOBIND_PORT_LATER 0x100
|
||||
|
||||
/**
|
||||
* Store data about the physical and logical attributes of a connection.
|
||||
diff --git a/src/ipc.cc b/src/ipc.cc
|
||||
index 45cab52..42e11e6 100644
|
||||
--- a/src/ipc.cc
|
||||
+++ b/src/ipc.cc
|
||||
@@ -95,12 +95,12 @@ ipcCreate(int type, const char *prog, const char *const args[], const char *name
|
||||
} else void(0)
|
||||
|
||||
if (type == IPC_TCP_SOCKET) {
|
||||
- crfd = cwfd = comm_open(SOCK_STREAM,
|
||||
+ crfd = cwfd = comm_open_listener(SOCK_STREAM,
|
||||
0,
|
||||
local_addr,
|
||||
COMM_NOCLOEXEC,
|
||||
name);
|
||||
- prfd = pwfd = comm_open(SOCK_STREAM,
|
||||
+ prfd = pwfd = comm_open_listener(SOCK_STREAM,
|
||||
0, /* protocol */
|
||||
local_addr,
|
||||
0, /* blocking */
|
||||
diff --git a/src/tests/stub_comm.cc b/src/tests/stub_comm.cc
|
||||
index a1d33d6..bf4bea6 100644
|
||||
--- a/src/tests/stub_comm.cc
|
||||
+++ b/src/tests/stub_comm.cc
|
||||
@@ -48,7 +48,6 @@ int comm_open_uds(int sock_type, int proto, struct sockaddr_un* addr, int flags)
|
||||
void comm_import_opened(const Comm::ConnectionPointer &, const char *note, struct addrinfo *AI) STUB
|
||||
int comm_open_listener(int sock_type, int proto, Ip::Address &addr, int flags, const char *note) STUB_RETVAL(-1)
|
||||
void comm_open_listener(int sock_type, int proto, Comm::ConnectionPointer &conn, const char *note) STUB
|
||||
-int comm_openex(int, int, Ip::Address &, int, tos_t tos, nfmark_t nfmark, const char *) STUB_RETVAL(-1)
|
||||
unsigned short comm_local_port(int fd) STUB_RETVAL(0)
|
||||
int comm_udp_sendto(int sock, const Ip::Address &to, const void *buf, int buflen) STUB_RETVAL(-1)
|
||||
void commCallCloseHandlers(int fd) STUB
|
||||
@ -0,0 +1,2 @@
|
||||
g squid 23 -
|
||||
u squid 23 "Squid proxy user" /var/spool/squid /sbin/nologin
|
||||
Loading…
Reference in new issue