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-rw-r--r--CMakeLists.txt12
-rw-r--r--configure.ac3
-rw-r--r--libvncserver/Makefile.am6
-rw-r--r--libvncserver/sockets.c112
4 files changed, 89 insertions, 44 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 12367ec..8e1839c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -36,6 +36,7 @@ find_package(GnuTLS)
find_package(Threads)
find_package(X11)
find_package(OpenSSL)
+find_package(PkgConfig)
find_library(LIBGCRYPT_LIBRARIES gcrypt)
# Check whether the version of libjpeg we found was libjpeg-turbo and print a
@@ -102,6 +103,17 @@ if(PNG_FOUND)
endif(PNG_FOUND)
option(LIBVNCSERVER_ALLOW24BPP "Allow 24 bpp" ON)
+pkg_check_modules(SYSTEMD "libsystemd")
+if(SYSTEMD_FOUND)
+ option(LIBVNCSERVER_WITH_SYSTEMD "Build with systemd socket activation support" ON)
+endif(SYSTEMD_FOUND)
+
+if(LIBVNCSERVER_WITH_SYSTEMD)
+ add_definitions(-DLIBVNCSERVER_WITH_SYSTEMD)
+ include_directories(${SYSTEMD_INCLUDE_DIRS})
+ set(ADDITIONAL_LIBS ${ADDITIONAL_LIBS} ${SYSTEMD_LIBRARIES})
+endif(LIBVNCSERVER_WITH_SYSTEMD)
+
if(GNUTLS_FOUND)
set(LIBVNCSERVER_WITH_CLIENT_TLS 1)
option(LIBVNCSERVER_WITH_WEBSOCKETS "Build with websockets support (gnutls)" ON)
diff --git a/configure.ac b/configure.ac
index 9651809..0b58743 100644
--- a/configure.ac
+++ b/configure.ac
@@ -68,6 +68,9 @@ if test ! -z "$with_ffmpeg"; then
fi
AM_CONDITIONAL(HAVE_MP3LAME, test "$HAVE_MP3LAME" = "true")
+PKG_CHECK_MODULES([LIBSYSTEMD], [libsystemd], [with_systemd=1], [with_systemd=0])
+AM_CONDITIONAL([WITH_SYSTEMD], [test $with_systemd -eq 1])
+
# Seem to need this dummy here to induce the 'checking for egrep... grep -E', etc.
# before it seemed to be inside the with_jpeg conditional.
AC_CHECK_HEADER(thenonexistentheader.h, HAVE_THENONEXISTENTHEADER_H="true")
diff --git a/libvncserver/Makefile.am b/libvncserver/Makefile.am
index 2f23e31..e25784b 100644
--- a/libvncserver/Makefile.am
+++ b/libvncserver/Makefile.am
@@ -59,6 +59,12 @@ LIB_SRCS = main.c rfbserver.c rfbregion.c auth.c sockets.c $(WEBSOCKETSSRCS) \
libvncserver_la_SOURCES=$(LIB_SRCS)
libvncserver_la_LIBADD=$(WEBSOCKETSSSLLIBS)
+if WITH_SYSTEMD
+AM_CPPFLAGS += -DLIBVNCSERVER_WITH_SYSTEMD
+libvncserver_la_CFLAGS = $(LIBSYSTEMD_CFLAGS)
+libvncserver_la_LIBADD += $(LIBSYSTEMD_LIBS)
+endif
+
lib_LTLIBRARIES=libvncserver.la
libvncserver_la_LDFLAGS = -version-info 1:0:0
diff --git a/libvncserver/sockets.c b/libvncserver/sockets.c
index 51e86eb..d4822f4 100644
--- a/libvncserver/sockets.c
+++ b/libvncserver/sockets.c
@@ -77,6 +77,10 @@
#include "rfbssl.h"
#endif
+#ifdef LIBVNCSERVER_WITH_SYSTEMD
+#include <systemd/sd-daemon.h>
+#endif
+
#if defined(__linux__) && defined(NEED_TIMEVAL)
struct timeval
{
@@ -122,6 +126,54 @@ int deny_severity=LOG_WARNING;
int rfbMaxClientWait = 20000; /* time (ms) after which we decide client has
gone away - needed to stop us hanging */
+static rfbBool
+rfbNewConnectionFromSock(rfbScreenInfoPtr rfbScreen, int sock)
+{
+ const int one = 1;
+#ifdef LIBVNCSERVER_IPv6
+ struct sockaddr_storage addr;
+#else
+ struct sockaddr_in addr;
+#endif
+ socklen_t addrlen = sizeof(addr);
+
+ getpeername(sock, (struct sockaddr *)&addr, &addrlen);
+
+ if(!rfbSetNonBlocking(sock)) {
+ rfbLogPerror("rfbCheckFds: setnonblock");
+ closesocket(sock);
+ return FALSE;
+ }
+
+ if (setsockopt(sock, IPPROTO_TCP, TCP_NODELAY,
+ (char *)&one, sizeof(one)) < 0) {
+ rfbLogPerror("rfbCheckFds: setsockopt failed: can't set TCP_NODELAY flag, non TCP socket?");
+ }
+
+#ifdef USE_LIBWRAP
+ if(!hosts_ctl("vnc",STRING_UNKNOWN,inet_ntoa(addr.sin_addr),
+ STRING_UNKNOWN)) {
+ rfbLog("Rejected connection from client %s\n",
+ inet_ntoa(addr.sin_addr));
+ closesocket(sock);
+ return FALSE;
+ }
+#endif
+
+#ifdef LIBVNCSERVER_IPv6
+ char host[1024];
+ if(getnameinfo((struct sockaddr*)&addr, addrlen, host, sizeof(host), NULL, 0, NI_NUMERICHOST) != 0) {
+ rfbLogPerror("rfbProcessNewConnection: error in getnameinfo");
+ }
+ rfbLog("Got connection from client %s\n", host);
+#else
+ rfbLog("Got connection from client %s\n", inet_ntoa(addr.sin_addr));
+#endif
+
+ rfbNewClient(rfbScreen,sock);
+ return TRUE;
+}
+
/*
* rfbInitSockets sets up the TCP and UDP sockets to listen for RFB
* connections. It does nothing if called again.
@@ -138,6 +190,20 @@ rfbInitSockets(rfbScreenInfoPtr rfbScreen)
rfbScreen->socketState = RFB_SOCKET_READY;
+#ifdef LIBVNCSERVER_WITH_SYSTEMD
+ if (sd_listen_fds(0) == 1)
+ {
+ int sock = SD_LISTEN_FDS_START + 0;
+ if (sd_is_socket(sock, AF_UNSPEC, 0, 0))
+ rfbNewConnectionFromSock(rfbScreen, sock);
+ else if (sd_is_socket(sock, AF_UNSPEC, 0, 1))
+ rfbProcessNewConnection(rfbScreen);
+ return;
+ }
+ else
+ rfbLog("Unable to establish connection with systemd socket\n");
+#endif
+
if (rfbScreen->inetdSock != -1) {
const int one = 1;
@@ -411,14 +477,7 @@ rfbCheckFds(rfbScreenInfoPtr rfbScreen,long usec)
rfbBool
rfbProcessNewConnection(rfbScreenInfoPtr rfbScreen)
{
- const int one = 1;
int sock = -1;
-#ifdef LIBVNCSERVER_IPv6
- struct sockaddr_storage addr;
-#else
- struct sockaddr_in addr;
-#endif
- socklen_t addrlen = sizeof(addr);
fd_set listen_fds;
int chosen_listen_sock = -1;
@@ -439,47 +498,12 @@ rfbProcessNewConnection(rfbScreenInfoPtr rfbScreen)
if (rfbScreen->listen6Sock >= 0 && FD_ISSET(rfbScreen->listen6Sock, &listen_fds))
chosen_listen_sock = rfbScreen->listen6Sock;
- if ((sock = accept(chosen_listen_sock,
- (struct sockaddr *)&addr, &addrlen)) < 0) {
+ if ((sock = accept(chosen_listen_sock, NULL, NULL)) < 0) {
rfbLogPerror("rfbCheckFds: accept");
return FALSE;
}
- if(!rfbSetNonBlocking(sock)) {
- closesocket(sock);
- return FALSE;
- }
-
- if (setsockopt(sock, IPPROTO_TCP, TCP_NODELAY,
- (char *)&one, sizeof(one)) < 0) {
- rfbLogPerror("rfbCheckFds: setsockopt failed: can't set TCP_NODELAY flag, non TCP socket?");
- }
-
-#ifdef USE_LIBWRAP
- if(!hosts_ctl("vnc",STRING_UNKNOWN,inet_ntoa(addr.sin_addr),
- STRING_UNKNOWN)) {
- rfbLog("Rejected connection from client %s\n",
- inet_ntoa(addr.sin_addr));
- closesocket(sock);
- return FALSE;
- }
-#endif
-
-#ifdef LIBVNCSERVER_IPv6
- {
- char host[1024];
- if(getnameinfo((struct sockaddr*)&addr, addrlen, host, sizeof(host), NULL, 0, NI_NUMERICHOST) != 0) {
- rfbLogPerror("rfbProcessNewConnection: error in getnameinfo");
- }
- rfbLog("Got connection from client %s\n", host);
- }
-#else
- rfbLog("Got connection from client %s\n", inet_ntoa(addr.sin_addr));
-#endif
-
- rfbNewClient(rfbScreen,sock);
-
- return TRUE;
+ return rfbNewConnectionFromSock(rfbScreen, sock);
}