From 3c2c7cee8a98850bbecd22e0e89b5241ce8c219f Mon Sep 17 00:00:00 2001 From: Tim Waugh Date: Jul 05 2011 12:26:06 +0000 Subject: Add support for systemd socket activation (patch from Lennart Poettering). --- diff --git a/0001-systemd-add-systemd-socket-activation-and-unit-files.patch b/0001-systemd-add-systemd-socket-activation-and-unit-files.patch deleted file mode 100644 index 053da7c..0000000 --- a/0001-systemd-add-systemd-socket-activation-and-unit-files.patch +++ /dev/null @@ -1,1173 +0,0 @@ -From 1db0a48375836c7e93ac30649007c2391be8b3b2 Mon Sep 17 00:00:00 2001 -From: Lennart Poettering -Date: Mon, 4 Jul 2011 01:37:01 +0200 -Subject: [PATCH] systemd: add systemd socket activation and unit files - -On newer Linux machines systemd supports launchd-style socket -activation. This patch adds support for this mechanism and also adds -systemd unit files as appropriate to hook this up with systemd. - -This includes an MIT-licensed drop-in file that implements the most -basic interfaces needed to get the file descriptors from systemd. Most -of the systemd and Linux-specific code compiles to NOPs on other -systems. - -Three triggers to start CUPS are defined: a) if new printer hardware is -plugged in, b) when a client accesses the CUPS socket and c) when a -spool file resides in /var/spool/cups. ---- - Makedefs.in | 2 + - config-scripts/cups-systemd.m4 | 25 ++ - configure.in | 4 + - data/Makefile | 9 + - data/cups.path.in | 8 + - data/cups.service.in | 9 + - data/cups.socket.in | 9 + - scheduler/Makefile | 9 + - scheduler/main.c | 107 ++++++++ - scheduler/sd-daemon.c | 520 ++++++++++++++++++++++++++++++++++++++++ - scheduler/sd-daemon.h | 277 +++++++++++++++++++++ - 11 files changed, 979 insertions(+), 0 deletions(-) - create mode 100644 config-scripts/cups-systemd.m4 - create mode 100644 data/cups.path.in - create mode 100644 data/cups.service.in - create mode 100644 data/cups.socket.in - create mode 100644 scheduler/sd-daemon.c - create mode 100644 scheduler/sd-daemon.h - -diff --git a/Makedefs.in b/Makedefs.in -index 654eea4..02c43b6 100644 ---- a/Makedefs.in -+++ b/Makedefs.in -@@ -143,6 +143,7 @@ CXXFLAGS = @CPPFLAGS@ @CXXFLAGS@ - CXXLIBS = @CXXLIBS@ - DBUS_NOTIFIER = @DBUS_NOTIFIER@ - DBUS_NOTIFIERLIBS = @DBUS_NOTIFIERLIBS@ -+SYSTEMD_UNITS = @SYSTEMD_UNITS@ - DNSSD_BACKEND = @DNSSD_BACKEND@ - DSOFLAGS = -L../cups @DSOFLAGS@ - DSOLIBS = @DSOLIBS@ $(COMMONLIBS) -@@ -267,6 +268,7 @@ PAMFILE = @PAMFILE@ - - DEFAULT_LAUNCHD_CONF = @DEFAULT_LAUNCHD_CONF@ - DBUSDIR = @DBUSDIR@ -+SYSTEMDUNITDIR = $(BUILDROOT)@systemdsystemunitdir@ - - - # -diff --git a/config-scripts/cups-systemd.m4 b/config-scripts/cups-systemd.m4 -new file mode 100644 -index 0000000..fead8a9 ---- /dev/null -+++ b/config-scripts/cups-systemd.m4 -@@ -0,0 +1,25 @@ -+dnl -+dnl "$Id$" -+dnl -+dnl systemd stuff for CUPS. -+ -+dnl Find whether systemd is available -+ -+AC_ARG_WITH([systemdsystemunitdir], -+ AS_HELP_STRING([--with-systemdsystemunitdir=DIR], [Directory for systemd service files]), -+ [], [with_systemdsystemunitdir=$($PKGCONFIG --variable=systemdsystemunitdir systemd)]) -+if test "x$with_systemdsystemunitdir" != xno; then -+ AC_SUBST([systemdsystemunitdir], [$with_systemdsystemunitdir]) -+fi -+ -+if test -n "$with_systemdsystemunitdir" -a "x$with_systemdsystemunitdir" != xno ; then -+ SYSTEMD_UNITS="cups.service cups.socket cups.path" -+else -+ SYSTEMD_UNITS="" -+fi -+ -+AC_SUBST(SYSTEMD_UNITS) -+ -+dnl -+dnl "$Id$" -+dnl -diff --git a/configure.in b/configure.in -index 560f4f8..b0c19a9 100644 ---- a/configure.in -+++ b/configure.in -@@ -37,6 +37,7 @@ sinclude(config-scripts/cups-pam.m4) - sinclude(config-scripts/cups-largefile.m4) - sinclude(config-scripts/cups-dnssd.m4) - sinclude(config-scripts/cups-launchd.m4) -+sinclude(config-scripts/cups-systemd.m4) - sinclude(config-scripts/cups-defaults.m4) - sinclude(config-scripts/cups-pdf.m4) - sinclude(config-scripts/cups-scripting.m4) -@@ -71,6 +72,9 @@ AC_OUTPUT(Makedefs - conf/snmp.conf - cups-config - data/testprint -+ data/cups.service -+ data/cups.socket -+ data/cups.path - desktop/cups.desktop - doc/help/ref-cupsd-conf.html - doc/help/standard.html -diff --git a/data/Makefile b/data/Makefile -index b9de21a..cccab85 100644 ---- a/data/Makefile -+++ b/data/Makefile -@@ -112,6 +112,12 @@ install-data: - $(INSTALL_DATA) $$file $(DATADIR)/ppdc; \ - done - $(INSTALL_DIR) -m 755 $(DATADIR)/profiles -+ if test "x$(SYSTEMD_UNITS)" != "x" ; then \ -+ $(INSTALL_DIR) -m 755 $(SYSTEMDUNITDIR); \ -+ for file in $(SYSTEMD_UNITS); do \ -+ $(INSTALL_DATA) $$file $(SYSTEMDUNITDIR); \ -+ done; \ -+ fi - - - # -@@ -159,6 +165,9 @@ uninstall: - -$(RMDIR) $(DATADIR)/charsets - -$(RMDIR) $(DATADIR)/banners - -$(RMDIR) $(DATADIR) -+ for file in $(SYSTEMD_UNITS); do \ -+ $(RM) $(SYSTEMDUNITDIR)/$$file; \ -+ done - - - # -diff --git a/data/cups.path.in b/data/cups.path.in -new file mode 100644 -index 0000000..c99e39b ---- /dev/null -+++ b/data/cups.path.in -@@ -0,0 +1,8 @@ -+[Unit] -+Description=CUPS Printer Service Spool -+ -+[Path] -+DirectoryNotEmpty=@CUPS_REQUESTS@ -+ -+[Install] -+WantedBy=multi-user.target -diff --git a/data/cups.service.in b/data/cups.service.in -new file mode 100644 -index 0000000..007d0e6 ---- /dev/null -+++ b/data/cups.service.in -@@ -0,0 +1,9 @@ -+[Unit] -+Description=CUPS Printing Service -+ -+[Service] -+ExecStart=@sbindir@/cupsd -f -+ -+[Install] -+Also=cups.socket cups.path -+WantedBy=printer.target -diff --git a/data/cups.socket.in b/data/cups.socket.in -new file mode 100644 -index 0000000..b940096 ---- /dev/null -+++ b/data/cups.socket.in -@@ -0,0 +1,9 @@ -+[Unit] -+Description=CUPS Printing Service Sockets -+ -+[Socket] -+ListenStream=@CUPS_DEFAULT_DOMAINSOCKET@ -+ListenStream=631 -+ -+[Install] -+WantedBy=sockets.target -diff --git a/scheduler/Makefile b/scheduler/Makefile -index 3c7da8e..05152a6 100644 ---- a/scheduler/Makefile -+++ b/scheduler/Makefile -@@ -39,6 +39,7 @@ CUPSDOBJS = \ - server.o \ - statbuf.o \ - subscriptions.o \ -+ sd-daemon.o \ - sysman.o - LIBOBJS = \ - filter.o \ -@@ -568,6 +569,14 @@ sloc: - - - # -+# Update sd-daemon.[ch] drop-in file from upstream git -+# -+ -+update-systemd: -+ curl http://cgit.freedesktop.org/systemd/plain/src/sd-daemon.c > sd-daemon.c -+ curl http://cgit.freedesktop.org/systemd/plain/src/sd-daemon.h > sd-daemon.h -+ -+# - # Dependencies... - # - -diff --git a/scheduler/main.c b/scheduler/main.c -index baaa3a1..5a4b8e1 100644 ---- a/scheduler/main.c -+++ b/scheduler/main.c -@@ -26,6 +26,8 @@ - * launchd_checkin() - Check-in with launchd and collect the listening - * fds. - * launchd_checkout() - Update the launchd KeepAlive file as needed. -+ * systemd_checkin() - Check-in with systemd and collect the -+ * listening fds. - * parent_handler() - Catch USR1/CHLD signals... - * process_children() - Process all dead children... - * select_timeout() - Calculate the select timeout value. -@@ -62,6 +64,8 @@ - # endif /* !LAUNCH_JOBKEY_SERVICEIPC */ - #endif /* HAVE_LAUNCH_H */ - -+#include "sd-daemon.h" -+ - #if defined(HAVE_MALLOC_H) && defined(HAVE_MALLINFO) - # include - #endif /* HAVE_MALLOC_H && HAVE_MALLINFO */ -@@ -78,6 +82,7 @@ - static void launchd_checkin(void); - static void launchd_checkout(void); - #endif /* HAVE_LAUNCHD */ -+static void systemd_checkin(void); - static void parent_handler(int sig); - static void process_children(void); - static void sigchld_handler(int sig); -@@ -520,6 +525,11 @@ main(int argc, /* I - Number of command-line args */ - #endif /* HAVE_LAUNCHD */ - - /* -+ * If we were started by systemd get the listen sockets file descriptors... -+ */ -+ systemd_checkin(); -+ -+ /* - * Startup the server... - */ - -@@ -731,6 +741,12 @@ main(int argc, /* I - Number of command-line args */ - #endif /* HAVE_LAUNCHD */ - - /* -+ * If we were started by systemd get the listen sockets file descriptors... -+ */ -+ -+ systemd_checkin(); -+ -+ /* - * Startup the server... - */ - -@@ -1535,6 +1551,97 @@ launchd_checkout(void) - } - #endif /* HAVE_LAUNCHD */ - -+static void -+systemd_checkin(void) -+{ -+ int n, fd; -+ -+ n = sd_listen_fds(1); -+ if (n < 0) -+ { -+ cupsdLogMessage(CUPSD_LOG_ERROR, -+ "systemd_checkin: Failed to acquire sockets from systemd - %s", -+ strerror(-n)); -+ exit(EXIT_FAILURE); -+ return; -+ } -+ -+ if (n == 0) -+ return; -+ -+ for (fd = SD_LISTEN_FDS_START; fd < SD_LISTEN_FDS_START + n; fd ++) -+ { -+ http_addr_t addr; -+ socklen_t addrlen; -+ int r; -+ cupsd_listener_t *lis; -+ char s[256]; -+ -+ r = sd_is_socket(fd, AF_UNSPEC, SOCK_STREAM, 1); -+ if (r < 0) { -+ cupsdLogMessage(CUPSD_LOG_ERROR, -+ "systemd_checkin: Unable to verify socket type - %s", -+ strerror(-r)); -+ continue; -+ } -+ -+ if (!r) { -+ cupsdLogMessage(CUPSD_LOG_ERROR, -+ "systemd_checkin: Socket not of the right type"); -+ continue; -+ } -+ -+ if (getsockname(fd, (struct sockaddr*) &addr, &addrlen)) -+ { -+ cupsdLogMessage(CUPSD_LOG_ERROR, -+ "systemd_checkin: Unable to get local address - %s", -+ strerror(errno)); -+ continue; -+ } -+ -+ /* -+ * Try to match the systemd socket address to one of the listeners... -+ */ -+ -+ for (lis = (cupsd_listener_t *)cupsArrayFirst(Listeners); -+ lis; -+ lis = (cupsd_listener_t *)cupsArrayNext(Listeners)) -+ if (httpAddrEqual(&lis->address, &addr)) -+ break; -+ -+ if (lis) -+ { -+ cupsdLogMessage(CUPSD_LOG_DEBUG, -+ "systemd_checkin: Matched existing listener %s with fd %d...", -+ httpAddrString(&(lis->address), s, sizeof(s)), fd); -+ } -+ else -+ { -+ cupsdLogMessage(CUPSD_LOG_DEBUG, -+ "systemd_checkin: Adding new listener %s with fd %d...", -+ httpAddrString(&addr, s, sizeof(s)), fd); -+ -+ if ((lis = calloc(1, sizeof(cupsd_listener_t))) == NULL) -+ { -+ cupsdLogMessage(CUPSD_LOG_ERROR, -+ "systemd_checkin: Unable to allocate listener - " -+ "%s.", strerror(errno)); -+ exit(EXIT_FAILURE); -+ } -+ -+ cupsArrayAdd(Listeners, lis); -+ -+ memcpy(&lis->address, &addr, sizeof(lis->address)); -+ } -+ -+ lis->fd = fd; -+ -+# ifdef HAVE_SSL -+ if (_httpAddrPort(&(lis->address)) == 443) -+ lis->encryption = HTTP_ENCRYPT_ALWAYS; -+# endif /* HAVE_SSL */ -+ } -+} - - /* - * 'parent_handler()' - Catch USR1/CHLD signals... -diff --git a/scheduler/sd-daemon.c b/scheduler/sd-daemon.c -new file mode 100644 -index 0000000..a2ec74c ---- /dev/null -+++ b/scheduler/sd-daemon.c -@@ -0,0 +1,520 @@ -+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ -+ -+/*** -+ Copyright 2010 Lennart Poettering -+ -+ Permission is hereby granted, free of charge, to any person -+ obtaining a copy of this software and associated documentation files -+ (the "Software"), to deal in the Software without restriction, -+ including without limitation the rights to use, copy, modify, merge, -+ publish, distribute, sublicense, and/or sell copies of the Software, -+ and to permit persons to whom the Software is furnished to do so, -+ subject to the following conditions: -+ -+ The above copyright notice and this permission notice shall be -+ included in all copies or substantial portions of the Software. -+ -+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, -+ EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -+ MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND -+ NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS -+ BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN -+ ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN -+ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE -+ SOFTWARE. -+***/ -+ -+#ifndef _GNU_SOURCE -+#define _GNU_SOURCE -+#endif -+ -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+ -+#if defined(__linux__) -+#include -+#endif -+ -+#include "sd-daemon.h" -+ -+#if (__GNUC__ >= 4) && !defined(SD_EXPORT_SYMBOLS) -+#define _sd_hidden_ __attribute__ ((visibility("hidden"))) -+#else -+#define _sd_hidden_ -+#endif -+ -+_sd_hidden_ int sd_listen_fds(int unset_environment) { -+ -+#if defined(DISABLE_SYSTEMD) || !defined(__linux__) -+ return 0; -+#else -+ int r, fd; -+ const char *e; -+ char *p = NULL; -+ unsigned long l; -+ -+ if (!(e = getenv("LISTEN_PID"))) { -+ r = 0; -+ goto finish; -+ } -+ -+ errno = 0; -+ l = strtoul(e, &p, 10); -+ -+ if (errno != 0) { -+ r = -errno; -+ goto finish; -+ } -+ -+ if (!p || *p || l <= 0) { -+ r = -EINVAL; -+ goto finish; -+ } -+ -+ /* Is this for us? */ -+ if (getpid() != (pid_t) l) { -+ r = 0; -+ goto finish; -+ } -+ -+ if (!(e = getenv("LISTEN_FDS"))) { -+ r = 0; -+ goto finish; -+ } -+ -+ errno = 0; -+ l = strtoul(e, &p, 10); -+ -+ if (errno != 0) { -+ r = -errno; -+ goto finish; -+ } -+ -+ if (!p || *p) { -+ r = -EINVAL; -+ goto finish; -+ } -+ -+ for (fd = SD_LISTEN_FDS_START; fd < SD_LISTEN_FDS_START + (int) l; fd ++) { -+ int flags; -+ -+ if ((flags = fcntl(fd, F_GETFD)) < 0) { -+ r = -errno; -+ goto finish; -+ } -+ -+ if (flags & FD_CLOEXEC) -+ continue; -+ -+ if (fcntl(fd, F_SETFD, flags | FD_CLOEXEC) < 0) { -+ r = -errno; -+ goto finish; -+ } -+ } -+ -+ r = (int) l; -+ -+finish: -+ if (unset_environment) { -+ unsetenv("LISTEN_PID"); -+ unsetenv("LISTEN_FDS"); -+ } -+ -+ return r; -+#endif -+} -+ -+_sd_hidden_ int sd_is_fifo(int fd, const char *path) { -+ struct stat st_fd; -+ -+ if (fd < 0) -+ return -EINVAL; -+ -+ memset(&st_fd, 0, sizeof(st_fd)); -+ if (fstat(fd, &st_fd) < 0) -+ return -errno; -+ -+ if (!S_ISFIFO(st_fd.st_mode)) -+ return 0; -+ -+ if (path) { -+ struct stat st_path; -+ -+ memset(&st_path, 0, sizeof(st_path)); -+ if (stat(path, &st_path) < 0) { -+ -+ if (errno == ENOENT || errno == ENOTDIR) -+ return 0; -+ -+ return -errno; -+ } -+ -+ return -+ st_path.st_dev == st_fd.st_dev && -+ st_path.st_ino == st_fd.st_ino; -+ } -+ -+ return 1; -+} -+ -+_sd_hidden_ int sd_is_special(int fd, const char *path) { -+ struct stat st_fd; -+ -+ if (fd < 0) -+ return -EINVAL; -+ -+ if (fstat(fd, &st_fd) < 0) -+ return -errno; -+ -+ if (!S_ISREG(st_fd.st_mode) && !S_ISCHR(st_fd.st_mode)) -+ return 0; -+ -+ if (path) { -+ struct stat st_path; -+ -+ if (stat(path, &st_path) < 0) { -+ -+ if (errno == ENOENT || errno == ENOTDIR) -+ return 0; -+ -+ return -errno; -+ } -+ -+ if (S_ISREG(st_fd.st_mode) && S_ISREG(st_path.st_mode)) -+ return -+ st_path.st_dev == st_fd.st_dev && -+ st_path.st_ino == st_fd.st_ino; -+ else if (S_ISCHR(st_fd.st_mode) && S_ISCHR(st_path.st_mode)) -+ return st_path.st_rdev == st_fd.st_rdev; -+ else -+ return 0; -+ } -+ -+ return 1; -+} -+ -+static int sd_is_socket_internal(int fd, int type, int listening) { -+ struct stat st_fd; -+ -+ if (fd < 0 || type < 0) -+ return -EINVAL; -+ -+ if (fstat(fd, &st_fd) < 0) -+ return -errno; -+ -+ if (!S_ISSOCK(st_fd.st_mode)) -+ return 0; -+ -+ if (type != 0) { -+ int other_type = 0; -+ socklen_t l = sizeof(other_type); -+ -+ if (getsockopt(fd, SOL_SOCKET, SO_TYPE, &other_type, &l) < 0) -+ return -errno; -+ -+ if (l != sizeof(other_type)) -+ return -EINVAL; -+ -+ if (other_type != type) -+ return 0; -+ } -+ -+ if (listening >= 0) { -+ int accepting = 0; -+ socklen_t l = sizeof(accepting); -+ -+ if (getsockopt(fd, SOL_SOCKET, SO_ACCEPTCONN, &accepting, &l) < 0) -+ return -errno; -+ -+ if (l != sizeof(accepting)) -+ return -EINVAL; -+ -+ if (!accepting != !listening) -+ return 0; -+ } -+ -+ return 1; -+} -+ -+union sockaddr_union { -+ struct sockaddr sa; -+ struct sockaddr_in in4; -+ struct sockaddr_in6 in6; -+ struct sockaddr_un un; -+ struct sockaddr_storage storage; -+}; -+ -+_sd_hidden_ int sd_is_socket(int fd, int family, int type, int listening) { -+ int r; -+ -+ if (family < 0) -+ return -EINVAL; -+ -+ if ((r = sd_is_socket_internal(fd, type, listening)) <= 0) -+ return r; -+ -+ if (family > 0) { -+ union sockaddr_union sockaddr; -+ socklen_t l; -+ -+ memset(&sockaddr, 0, sizeof(sockaddr)); -+ l = sizeof(sockaddr); -+ -+ if (getsockname(fd, &sockaddr.sa, &l) < 0) -+ return -errno; -+ -+ if (l < sizeof(sa_family_t)) -+ return -EINVAL; -+ -+ return sockaddr.sa.sa_family == family; -+ } -+ -+ return 1; -+} -+ -+_sd_hidden_ int sd_is_socket_inet(int fd, int family, int type, int listening, uint16_t port) { -+ union sockaddr_union sockaddr; -+ socklen_t l; -+ int r; -+ -+ if (family != 0 && family != AF_INET && family != AF_INET6) -+ return -EINVAL; -+ -+ if ((r = sd_is_socket_internal(fd, type, listening)) <= 0) -+ return r; -+ -+ memset(&sockaddr, 0, sizeof(sockaddr)); -+ l = sizeof(sockaddr); -+ -+ if (getsockname(fd, &sockaddr.sa, &l) < 0) -+ return -errno; -+ -+ if (l < sizeof(sa_family_t)) -+ return -EINVAL; -+ -+ if (sockaddr.sa.sa_family != AF_INET && -+ sockaddr.sa.sa_family != AF_INET6) -+ return 0; -+ -+ if (family > 0) -+ if (sockaddr.sa.sa_family != family) -+ return 0; -+ -+ if (port > 0) { -+ if (sockaddr.sa.sa_family == AF_INET) { -+ if (l < sizeof(struct sockaddr_in)) -+ return -EINVAL; -+ -+ return htons(port) == sockaddr.in4.sin_port; -+ } else { -+ if (l < sizeof(struct sockaddr_in6)) -+ return -EINVAL; -+ -+ return htons(port) == sockaddr.in6.sin6_port; -+ } -+ } -+ -+ return 1; -+} -+ -+_sd_hidden_ int sd_is_socket_unix(int fd, int type, int listening, const char *path, size_t length) { -+ union sockaddr_union sockaddr; -+ socklen_t l; -+ int r; -+ -+ if ((r = sd_is_socket_internal(fd, type, listening)) <= 0) -+ return r; -+ -+ memset(&sockaddr, 0, sizeof(sockaddr)); -+ l = sizeof(sockaddr); -+ -+ if (getsockname(fd, &sockaddr.sa, &l) < 0) -+ return -errno; -+ -+ if (l < sizeof(sa_family_t)) -+ return -EINVAL; -+ -+ if (sockaddr.sa.sa_family != AF_UNIX) -+ return 0; -+ -+ if (path) { -+ if (length <= 0) -+ length = strlen(path); -+ -+ if (length <= 0) -+ /* Unnamed socket */ -+ return l == offsetof(struct sockaddr_un, sun_path); -+ -+ if (path[0]) -+ /* Normal path socket */ -+ return -+ (l >= offsetof(struct sockaddr_un, sun_path) + length + 1) && -+ memcmp(path, sockaddr.un.sun_path, length+1) == 0; -+ else -+ /* Abstract namespace socket */ -+ return -+ (l == offsetof(struct sockaddr_un, sun_path) + length) && -+ memcmp(path, sockaddr.un.sun_path, length) == 0; -+ } -+ -+ return 1; -+} -+ -+_sd_hidden_ int sd_is_mq(int fd, const char *path) { -+#if !defined(__linux__) -+ return 0; -+#else -+ struct mq_attr attr; -+ -+ if (fd < 0) -+ return -EINVAL; -+ -+ if (mq_getattr(fd, &attr) < 0) -+ return -errno; -+ -+ if (path) { -+ char fpath[PATH_MAX]; -+ struct stat a, b; -+ -+ if (path[0] != '/') -+ return -EINVAL; -+ -+ if (fstat(fd, &a) < 0) -+ return -errno; -+ -+ strncpy(stpcpy(fpath, "/dev/mqueue"), path, sizeof(fpath) - 12); -+ fpath[sizeof(fpath)-1] = 0; -+ -+ if (stat(fpath, &b) < 0) -+ return -errno; -+ -+ if (a.st_dev != b.st_dev || -+ a.st_ino != b.st_ino) -+ return 0; -+ } -+ -+ return 1; -+#endif -+} -+ -+_sd_hidden_ int sd_notify(int unset_environment, const char *state) { -+#if defined(DISABLE_SYSTEMD) || !defined(__linux__) || !defined(SOCK_CLOEXEC) -+ return 0; -+#else -+ int fd = -1, r; -+ struct msghdr msghdr; -+ struct iovec iovec; -+ union sockaddr_union sockaddr; -+ const char *e; -+ -+ if (!state) { -+ r = -EINVAL; -+ goto finish; -+ } -+ -+ if (!(e = getenv("NOTIFY_SOCKET"))) -+ return 0; -+ -+ /* Must be an abstract socket, or an absolute path */ -+ if ((e[0] != '@' && e[0] != '/') || e[1] == 0) { -+ r = -EINVAL; -+ goto finish; -+ } -+ -+ if ((fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0)) < 0) { -+ r = -errno; -+ goto finish; -+ } -+ -+ memset(&sockaddr, 0, sizeof(sockaddr)); -+ sockaddr.sa.sa_family = AF_UNIX; -+ strncpy(sockaddr.un.sun_path, e, sizeof(sockaddr.un.sun_path)); -+ -+ if (sockaddr.un.sun_path[0] == '@') -+ sockaddr.un.sun_path[0] = 0; -+ -+ memset(&iovec, 0, sizeof(iovec)); -+ iovec.iov_base = (char*) state; -+ iovec.iov_len = strlen(state); -+ -+ memset(&msghdr, 0, sizeof(msghdr)); -+ msghdr.msg_name = &sockaddr; -+ msghdr.msg_namelen = offsetof(struct sockaddr_un, sun_path) + strlen(e); -+ -+ if (msghdr.msg_namelen > sizeof(struct sockaddr_un)) -+ msghdr.msg_namelen = sizeof(struct sockaddr_un); -+ -+ msghdr.msg_iov = &iovec; -+ msghdr.msg_iovlen = 1; -+ -+ if (sendmsg(fd, &msghdr, MSG_NOSIGNAL) < 0) { -+ r = -errno; -+ goto finish; -+ } -+ -+ r = 1; -+ -+finish: -+ if (unset_environment) -+ unsetenv("NOTIFY_SOCKET"); -+ -+ if (fd >= 0) -+ close(fd); -+ -+ return r; -+#endif -+} -+ -+_sd_hidden_ int sd_notifyf(int unset_environment, const char *format, ...) { -+#if defined(DISABLE_SYSTEMD) || !defined(__linux__) -+ return 0; -+#else -+ va_list ap; -+ char *p = NULL; -+ int r; -+ -+ va_start(ap, format); -+ r = vasprintf(&p, format, ap); -+ va_end(ap); -+ -+ if (r < 0 || !p) -+ return -ENOMEM; -+ -+ r = sd_notify(unset_environment, p); -+ free(p); -+ -+ return r; -+#endif -+} -+ -+_sd_hidden_ int sd_booted(void) { -+#if defined(DISABLE_SYSTEMD) || !defined(__linux__) -+ return 0; -+#else -+ -+ struct stat a, b; -+ -+ /* We simply test whether the systemd cgroup hierarchy is -+ * mounted */ -+ -+ if (lstat("/sys/fs/cgroup", &a) < 0) -+ return 0; -+ -+ if (lstat("/sys/fs/cgroup/systemd", &b) < 0) -+ return 0; -+ -+ return a.st_dev != b.st_dev; -+#endif -+} -diff --git a/scheduler/sd-daemon.h b/scheduler/sd-daemon.h -new file mode 100644 -index 0000000..46dc7fd ---- /dev/null -+++ b/scheduler/sd-daemon.h -@@ -0,0 +1,277 @@ -+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ -+ -+#ifndef foosddaemonhfoo -+#define foosddaemonhfoo -+ -+/*** -+ Copyright 2010 Lennart Poettering -+ -+ Permission is hereby granted, free of charge, to any person -+ obtaining a copy of this software and associated documentation files -+ (the "Software"), to deal in the Software without restriction, -+ including without limitation the rights to use, copy, modify, merge, -+ publish, distribute, sublicense, and/or sell copies of the Software, -+ and to permit persons to whom the Software is furnished to do so, -+ subject to the following conditions: -+ -+ The above copyright notice and this permission notice shall be -+ included in all copies or substantial portions of the Software. -+ -+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, -+ EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -+ MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND -+ NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS -+ BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN -+ ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN -+ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE -+ SOFTWARE. -+***/ -+ -+#include -+#include -+ -+#ifdef __cplusplus -+extern "C" { -+#endif -+ -+/* -+ Reference implementation of a few systemd related interfaces for -+ writing daemons. These interfaces are trivial to implement. To -+ simplify porting we provide this reference implementation. -+ Applications are welcome to reimplement the algorithms described -+ here if they do not want to include these two source files. -+ -+ The following functionality is provided: -+ -+ - Support for logging with log levels on stderr -+ - File descriptor passing for socket-based activation -+ - Daemon startup and status notification -+ - Detection of systemd boots -+ -+ You may compile this with -DDISABLE_SYSTEMD to disable systemd -+ support. This makes all those calls NOPs that are directly related to -+ systemd (i.e. only sd_is_xxx() will stay useful). -+ -+ Since this is drop-in code we don't want any of our symbols to be -+ exported in any case. Hence we declare hidden visibility for all of -+ them. -+ -+ You may find an up-to-date version of these source files online: -+ -+ http://cgit.freedesktop.org/systemd/plain/src/sd-daemon.h -+ http://cgit.freedesktop.org/systemd/plain/src/sd-daemon.c -+ -+ This should compile on non-Linux systems, too, but with the -+ exception of the sd_is_xxx() calls all functions will become NOPs. -+ -+ See sd-daemon(7) for more information. -+*/ -+ -+#ifndef _sd_printf_attr_ -+#if __GNUC__ >= 4 -+#define _sd_printf_attr_(a,b) __attribute__ ((format (printf, a, b))) -+#else -+#define _sd_printf_attr_(a,b) -+#endif -+#endif -+ -+/* -+ Log levels for usage on stderr: -+ -+ fprintf(stderr, SD_NOTICE "Hello World!\n"); -+ -+ This is similar to printk() usage in the kernel. -+*/ -+#define SD_EMERG "<0>" /* system is unusable */ -+#define SD_ALERT "<1>" /* action must be taken immediately */ -+#define SD_CRIT "<2>" /* critical conditions */ -+#define SD_ERR "<3>" /* error conditions */ -+#define SD_WARNING "<4>" /* warning conditions */ -+#define SD_NOTICE "<5>" /* normal but significant condition */ -+#define SD_INFO "<6>" /* informational */ -+#define SD_DEBUG "<7>" /* debug-level messages */ -+ -+/* The first passed file descriptor is fd 3 */ -+#define SD_LISTEN_FDS_START 3 -+ -+/* -+ Returns how many file descriptors have been passed, or a negative -+ errno code on failure. Optionally, removes the $LISTEN_FDS and -+ $LISTEN_PID file descriptors from the environment (recommended, but -+ problematic in threaded environments). If r is the return value of -+ this function you'll find the file descriptors passed as fds -+ SD_LISTEN_FDS_START to SD_LISTEN_FDS_START+r-1. Returns a negative -+ errno style error code on failure. This function call ensures that -+ the FD_CLOEXEC flag is set for the passed file descriptors, to make -+ sure they are not passed on to child processes. If FD_CLOEXEC shall -+ not be set, the caller needs to unset it after this call for all file -+ descriptors that are used. -+ -+ See sd_listen_fds(3) for more information. -+*/ -+int sd_listen_fds(int unset_environment); -+ -+/* -+ Helper call for identifying a passed file descriptor. Returns 1 if -+ the file descriptor is a FIFO in the file system stored under the -+ specified path, 0 otherwise. If path is NULL a path name check will -+ not be done and the call only verifies if the file descriptor -+ refers to a FIFO. Returns a negative errno style error code on -+ failure. -+ -+ See sd_is_fifo(3) for more information. -+*/ -+int sd_is_fifo(int fd, const char *path); -+ -+/* -+ Helper call for identifying a passed file descriptor. Returns 1 if -+ the file descriptor is a special character device on the file -+ system stored under the specified path, 0 otherwise. -+ If path is NULL a path name check will not be done and the call -+ only verifies if the file descriptor refers to a special character. -+ Returns a negative errno style error code on failure. -+ -+ See sd_is_special(3) for more information. -+*/ -+int sd_is_special(int fd, const char *path); -+ -+/* -+ Helper call for identifying a passed file descriptor. Returns 1 if -+ the file descriptor is a socket of the specified family (AF_INET, -+ ...) and type (SOCK_DGRAM, SOCK_STREAM, ...), 0 otherwise. If -+ family is 0 a socket family check will not be done. If type is 0 a -+ socket type check will not be done and the call only verifies if -+ the file descriptor refers to a socket. If listening is > 0 it is -+ verified that the socket is in listening mode. (i.e. listen() has -+ been called) If listening is == 0 it is verified that the socket is -+ not in listening mode. If listening is < 0 no listening mode check -+ is done. Returns a negative errno style error code on failure. -+ -+ See sd_is_socket(3) for more information. -+*/ -+int sd_is_socket(int fd, int family, int type, int listening); -+ -+/* -+ Helper call for identifying a passed file descriptor. Returns 1 if -+ the file descriptor is an Internet socket, of the specified family -+ (either AF_INET or AF_INET6) and the specified type (SOCK_DGRAM, -+ SOCK_STREAM, ...), 0 otherwise. If version is 0 a protocol version -+ check is not done. If type is 0 a socket type check will not be -+ done. If port is 0 a socket port check will not be done. The -+ listening flag is used the same way as in sd_is_socket(). Returns a -+ negative errno style error code on failure. -+ -+ See sd_is_socket_inet(3) for more information. -+*/ -+int sd_is_socket_inet(int fd, int family, int type, int listening, uint16_t port); -+ -+/* -+ Helper call for identifying a passed file descriptor. Returns 1 if -+ the file descriptor is an AF_UNIX socket of the specified type -+ (SOCK_DGRAM, SOCK_STREAM, ...) and path, 0 otherwise. If type is 0 -+ a socket type check will not be done. If path is NULL a socket path -+ check will not be done. For normal AF_UNIX sockets set length to -+ 0. For abstract namespace sockets set length to the length of the -+ socket name (including the initial 0 byte), and pass the full -+ socket path in path (including the initial 0 byte). The listening -+ flag is used the same way as in sd_is_socket(). Returns a negative -+ errno style error code on failure. -+ -+ See sd_is_socket_unix(3) for more information. -+*/ -+int sd_is_socket_unix(int fd, int type, int listening, const char *path, size_t length); -+ -+/* -+ Helper call for identifying a passed file descriptor. Returns 1 if -+ the file descriptor is a POSIX Message Queue of the specified name, -+ 0 otherwise. If path is NULL a message queue name check is not -+ done. Returns a negative errno style error code on failure. -+*/ -+int sd_is_mq(int fd, const char *path); -+ -+/* -+ Informs systemd about changed daemon state. This takes a number of -+ newline separated environment-style variable assignments in a -+ string. The following variables are known: -+ -+ READY=1 Tells systemd that daemon startup is finished (only -+ relevant for services of Type=notify). The passed -+ argument is a boolean "1" or "0". Since there is -+ little value in signaling non-readiness the only -+ value daemons should send is "READY=1". -+ -+ STATUS=... Passes a single-line status string back to systemd -+ that describes the daemon state. This is free-from -+ and can be used for various purposes: general state -+ feedback, fsck-like programs could pass completion -+ percentages and failing programs could pass a human -+ readable error message. Example: "STATUS=Completed -+ 66% of file system check..." -+ -+ ERRNO=... If a daemon fails, the errno-style error code, -+ formatted as string. Example: "ERRNO=2" for ENOENT. -+ -+ BUSERROR=... If a daemon fails, the D-Bus error-style error -+ code. Example: "BUSERROR=org.freedesktop.DBus.Error.TimedOut" -+ -+ MAINPID=... The main pid of a daemon, in case systemd did not -+ fork off the process itself. Example: "MAINPID=4711" -+ -+ Daemons can choose to send additional variables. However, it is -+ recommended to prefix variable names not listed above with X_. -+ -+ Returns a negative errno-style error code on failure. Returns > 0 -+ if systemd could be notified, 0 if it couldn't possibly because -+ systemd is not running. -+ -+ Example: When a daemon finished starting up, it could issue this -+ call to notify systemd about it: -+ -+ sd_notify(0, "READY=1"); -+ -+ See sd_notifyf() for more complete examples. -+ -+ See sd_notify(3) for more information. -+*/ -+int sd_notify(int unset_environment, const char *state); -+ -+/* -+ Similar to sd_notify() but takes a format string. -+ -+ Example 1: A daemon could send the following after initialization: -+ -+ sd_notifyf(0, "READY=1\n" -+ "STATUS=Processing requests...\n" -+ "MAINPID=%lu", -+ (unsigned long) getpid()); -+ -+ Example 2: A daemon could send the following shortly before -+ exiting, on failure: -+ -+ sd_notifyf(0, "STATUS=Failed to start up: %s\n" -+ "ERRNO=%i", -+ strerror(errno), -+ errno); -+ -+ See sd_notifyf(3) for more information. -+*/ -+int sd_notifyf(int unset_environment, const char *format, ...) _sd_printf_attr_(2,3); -+ -+/* -+ Returns > 0 if the system was booted with systemd. Returns < 0 on -+ error. Returns 0 if the system was not booted with systemd. Note -+ that all of the functions above handle non-systemd boots just -+ fine. You should NOT protect them with a call to this function. Also -+ note that this function checks whether the system, not the user -+ session is controlled by systemd. However the functions above work -+ for both user and system services. -+ -+ See sd_booted(3) for more information. -+*/ -+int sd_booted(void); -+ -+#ifdef __cplusplus -+} -+#endif -+ -+#endif --- -1.7.6 - diff --git a/cups-systemd-socket.patch b/cups-systemd-socket.patch new file mode 100644 index 0000000..053da7c --- /dev/null +++ b/cups-systemd-socket.patch @@ -0,0 +1,1173 @@ +From 1db0a48375836c7e93ac30649007c2391be8b3b2 Mon Sep 17 00:00:00 2001 +From: Lennart Poettering +Date: Mon, 4 Jul 2011 01:37:01 +0200 +Subject: [PATCH] systemd: add systemd socket activation and unit files + +On newer Linux machines systemd supports launchd-style socket +activation. This patch adds support for this mechanism and also adds +systemd unit files as appropriate to hook this up with systemd. + +This includes an MIT-licensed drop-in file that implements the most +basic interfaces needed to get the file descriptors from systemd. Most +of the systemd and Linux-specific code compiles to NOPs on other +systems. + +Three triggers to start CUPS are defined: a) if new printer hardware is +plugged in, b) when a client accesses the CUPS socket and c) when a +spool file resides in /var/spool/cups. +--- + Makedefs.in | 2 + + config-scripts/cups-systemd.m4 | 25 ++ + configure.in | 4 + + data/Makefile | 9 + + data/cups.path.in | 8 + + data/cups.service.in | 9 + + data/cups.socket.in | 9 + + scheduler/Makefile | 9 + + scheduler/main.c | 107 ++++++++ + scheduler/sd-daemon.c | 520 ++++++++++++++++++++++++++++++++++++++++ + scheduler/sd-daemon.h | 277 +++++++++++++++++++++ + 11 files changed, 979 insertions(+), 0 deletions(-) + create mode 100644 config-scripts/cups-systemd.m4 + create mode 100644 data/cups.path.in + create mode 100644 data/cups.service.in + create mode 100644 data/cups.socket.in + create mode 100644 scheduler/sd-daemon.c + create mode 100644 scheduler/sd-daemon.h + +diff --git a/Makedefs.in b/Makedefs.in +index 654eea4..02c43b6 100644 +--- a/Makedefs.in ++++ b/Makedefs.in +@@ -143,6 +143,7 @@ CXXFLAGS = @CPPFLAGS@ @CXXFLAGS@ + CXXLIBS = @CXXLIBS@ + DBUS_NOTIFIER = @DBUS_NOTIFIER@ + DBUS_NOTIFIERLIBS = @DBUS_NOTIFIERLIBS@ ++SYSTEMD_UNITS = @SYSTEMD_UNITS@ + DNSSD_BACKEND = @DNSSD_BACKEND@ + DSOFLAGS = -L../cups @DSOFLAGS@ + DSOLIBS = @DSOLIBS@ $(COMMONLIBS) +@@ -267,6 +268,7 @@ PAMFILE = @PAMFILE@ + + DEFAULT_LAUNCHD_CONF = @DEFAULT_LAUNCHD_CONF@ + DBUSDIR = @DBUSDIR@ ++SYSTEMDUNITDIR = $(BUILDROOT)@systemdsystemunitdir@ + + + # +diff --git a/config-scripts/cups-systemd.m4 b/config-scripts/cups-systemd.m4 +new file mode 100644 +index 0000000..fead8a9 +--- /dev/null ++++ b/config-scripts/cups-systemd.m4 +@@ -0,0 +1,25 @@ ++dnl ++dnl "$Id$" ++dnl ++dnl systemd stuff for CUPS. ++ ++dnl Find whether systemd is available ++ ++AC_ARG_WITH([systemdsystemunitdir], ++ AS_HELP_STRING([--with-systemdsystemunitdir=DIR], [Directory for systemd service files]), ++ [], [with_systemdsystemunitdir=$($PKGCONFIG --variable=systemdsystemunitdir systemd)]) ++if test "x$with_systemdsystemunitdir" != xno; then ++ AC_SUBST([systemdsystemunitdir], [$with_systemdsystemunitdir]) ++fi ++ ++if test -n "$with_systemdsystemunitdir" -a "x$with_systemdsystemunitdir" != xno ; then ++ SYSTEMD_UNITS="cups.service cups.socket cups.path" ++else ++ SYSTEMD_UNITS="" ++fi ++ ++AC_SUBST(SYSTEMD_UNITS) ++ ++dnl ++dnl "$Id$" ++dnl +diff --git a/configure.in b/configure.in +index 560f4f8..b0c19a9 100644 +--- a/configure.in ++++ b/configure.in +@@ -37,6 +37,7 @@ sinclude(config-scripts/cups-pam.m4) + sinclude(config-scripts/cups-largefile.m4) + sinclude(config-scripts/cups-dnssd.m4) + sinclude(config-scripts/cups-launchd.m4) ++sinclude(config-scripts/cups-systemd.m4) + sinclude(config-scripts/cups-defaults.m4) + sinclude(config-scripts/cups-pdf.m4) + sinclude(config-scripts/cups-scripting.m4) +@@ -71,6 +72,9 @@ AC_OUTPUT(Makedefs + conf/snmp.conf + cups-config + data/testprint ++ data/cups.service ++ data/cups.socket ++ data/cups.path + desktop/cups.desktop + doc/help/ref-cupsd-conf.html + doc/help/standard.html +diff --git a/data/Makefile b/data/Makefile +index b9de21a..cccab85 100644 +--- a/data/Makefile ++++ b/data/Makefile +@@ -112,6 +112,12 @@ install-data: + $(INSTALL_DATA) $$file $(DATADIR)/ppdc; \ + done + $(INSTALL_DIR) -m 755 $(DATADIR)/profiles ++ if test "x$(SYSTEMD_UNITS)" != "x" ; then \ ++ $(INSTALL_DIR) -m 755 $(SYSTEMDUNITDIR); \ ++ for file in $(SYSTEMD_UNITS); do \ ++ $(INSTALL_DATA) $$file $(SYSTEMDUNITDIR); \ ++ done; \ ++ fi + + + # +@@ -159,6 +165,9 @@ uninstall: + -$(RMDIR) $(DATADIR)/charsets + -$(RMDIR) $(DATADIR)/banners + -$(RMDIR) $(DATADIR) ++ for file in $(SYSTEMD_UNITS); do \ ++ $(RM) $(SYSTEMDUNITDIR)/$$file; \ ++ done + + + # +diff --git a/data/cups.path.in b/data/cups.path.in +new file mode 100644 +index 0000000..c99e39b +--- /dev/null ++++ b/data/cups.path.in +@@ -0,0 +1,8 @@ ++[Unit] ++Description=CUPS Printer Service Spool ++ ++[Path] ++DirectoryNotEmpty=@CUPS_REQUESTS@ ++ ++[Install] ++WantedBy=multi-user.target +diff --git a/data/cups.service.in b/data/cups.service.in +new file mode 100644 +index 0000000..007d0e6 +--- /dev/null ++++ b/data/cups.service.in +@@ -0,0 +1,9 @@ ++[Unit] ++Description=CUPS Printing Service ++ ++[Service] ++ExecStart=@sbindir@/cupsd -f ++ ++[Install] ++Also=cups.socket cups.path ++WantedBy=printer.target +diff --git a/data/cups.socket.in b/data/cups.socket.in +new file mode 100644 +index 0000000..b940096 +--- /dev/null ++++ b/data/cups.socket.in +@@ -0,0 +1,9 @@ ++[Unit] ++Description=CUPS Printing Service Sockets ++ ++[Socket] ++ListenStream=@CUPS_DEFAULT_DOMAINSOCKET@ ++ListenStream=631 ++ ++[Install] ++WantedBy=sockets.target +diff --git a/scheduler/Makefile b/scheduler/Makefile +index 3c7da8e..05152a6 100644 +--- a/scheduler/Makefile ++++ b/scheduler/Makefile +@@ -39,6 +39,7 @@ CUPSDOBJS = \ + server.o \ + statbuf.o \ + subscriptions.o \ ++ sd-daemon.o \ + sysman.o + LIBOBJS = \ + filter.o \ +@@ -568,6 +569,14 @@ sloc: + + + # ++# Update sd-daemon.[ch] drop-in file from upstream git ++# ++ ++update-systemd: ++ curl http://cgit.freedesktop.org/systemd/plain/src/sd-daemon.c > sd-daemon.c ++ curl http://cgit.freedesktop.org/systemd/plain/src/sd-daemon.h > sd-daemon.h ++ ++# + # Dependencies... + # + +diff --git a/scheduler/main.c b/scheduler/main.c +index baaa3a1..5a4b8e1 100644 +--- a/scheduler/main.c ++++ b/scheduler/main.c +@@ -26,6 +26,8 @@ + * launchd_checkin() - Check-in with launchd and collect the listening + * fds. + * launchd_checkout() - Update the launchd KeepAlive file as needed. ++ * systemd_checkin() - Check-in with systemd and collect the ++ * listening fds. + * parent_handler() - Catch USR1/CHLD signals... + * process_children() - Process all dead children... + * select_timeout() - Calculate the select timeout value. +@@ -62,6 +64,8 @@ + # endif /* !LAUNCH_JOBKEY_SERVICEIPC */ + #endif /* HAVE_LAUNCH_H */ + ++#include "sd-daemon.h" ++ + #if defined(HAVE_MALLOC_H) && defined(HAVE_MALLINFO) + # include + #endif /* HAVE_MALLOC_H && HAVE_MALLINFO */ +@@ -78,6 +82,7 @@ + static void launchd_checkin(void); + static void launchd_checkout(void); + #endif /* HAVE_LAUNCHD */ ++static void systemd_checkin(void); + static void parent_handler(int sig); + static void process_children(void); + static void sigchld_handler(int sig); +@@ -520,6 +525,11 @@ main(int argc, /* I - Number of command-line args */ + #endif /* HAVE_LAUNCHD */ + + /* ++ * If we were started by systemd get the listen sockets file descriptors... ++ */ ++ systemd_checkin(); ++ ++ /* + * Startup the server... + */ + +@@ -731,6 +741,12 @@ main(int argc, /* I - Number of command-line args */ + #endif /* HAVE_LAUNCHD */ + + /* ++ * If we were started by systemd get the listen sockets file descriptors... ++ */ ++ ++ systemd_checkin(); ++ ++ /* + * Startup the server... + */ + +@@ -1535,6 +1551,97 @@ launchd_checkout(void) + } + #endif /* HAVE_LAUNCHD */ + ++static void ++systemd_checkin(void) ++{ ++ int n, fd; ++ ++ n = sd_listen_fds(1); ++ if (n < 0) ++ { ++ cupsdLogMessage(CUPSD_LOG_ERROR, ++ "systemd_checkin: Failed to acquire sockets from systemd - %s", ++ strerror(-n)); ++ exit(EXIT_FAILURE); ++ return; ++ } ++ ++ if (n == 0) ++ return; ++ ++ for (fd = SD_LISTEN_FDS_START; fd < SD_LISTEN_FDS_START + n; fd ++) ++ { ++ http_addr_t addr; ++ socklen_t addrlen; ++ int r; ++ cupsd_listener_t *lis; ++ char s[256]; ++ ++ r = sd_is_socket(fd, AF_UNSPEC, SOCK_STREAM, 1); ++ if (r < 0) { ++ cupsdLogMessage(CUPSD_LOG_ERROR, ++ "systemd_checkin: Unable to verify socket type - %s", ++ strerror(-r)); ++ continue; ++ } ++ ++ if (!r) { ++ cupsdLogMessage(CUPSD_LOG_ERROR, ++ "systemd_checkin: Socket not of the right type"); ++ continue; ++ } ++ ++ if (getsockname(fd, (struct sockaddr*) &addr, &addrlen)) ++ { ++ cupsdLogMessage(CUPSD_LOG_ERROR, ++ "systemd_checkin: Unable to get local address - %s", ++ strerror(errno)); ++ continue; ++ } ++ ++ /* ++ * Try to match the systemd socket address to one of the listeners... ++ */ ++ ++ for (lis = (cupsd_listener_t *)cupsArrayFirst(Listeners); ++ lis; ++ lis = (cupsd_listener_t *)cupsArrayNext(Listeners)) ++ if (httpAddrEqual(&lis->address, &addr)) ++ break; ++ ++ if (lis) ++ { ++ cupsdLogMessage(CUPSD_LOG_DEBUG, ++ "systemd_checkin: Matched existing listener %s with fd %d...", ++ httpAddrString(&(lis->address), s, sizeof(s)), fd); ++ } ++ else ++ { ++ cupsdLogMessage(CUPSD_LOG_DEBUG, ++ "systemd_checkin: Adding new listener %s with fd %d...", ++ httpAddrString(&addr, s, sizeof(s)), fd); ++ ++ if ((lis = calloc(1, sizeof(cupsd_listener_t))) == NULL) ++ { ++ cupsdLogMessage(CUPSD_LOG_ERROR, ++ "systemd_checkin: Unable to allocate listener - " ++ "%s.", strerror(errno)); ++ exit(EXIT_FAILURE); ++ } ++ ++ cupsArrayAdd(Listeners, lis); ++ ++ memcpy(&lis->address, &addr, sizeof(lis->address)); ++ } ++ ++ lis->fd = fd; ++ ++# ifdef HAVE_SSL ++ if (_httpAddrPort(&(lis->address)) == 443) ++ lis->encryption = HTTP_ENCRYPT_ALWAYS; ++# endif /* HAVE_SSL */ ++ } ++} + + /* + * 'parent_handler()' - Catch USR1/CHLD signals... +diff --git a/scheduler/sd-daemon.c b/scheduler/sd-daemon.c +new file mode 100644 +index 0000000..a2ec74c +--- /dev/null ++++ b/scheduler/sd-daemon.c +@@ -0,0 +1,520 @@ ++/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ ++ ++/*** ++ Copyright 2010 Lennart Poettering ++ ++ Permission is hereby granted, free of charge, to any person ++ obtaining a copy of this software and associated documentation files ++ (the "Software"), to deal in the Software without restriction, ++ including without limitation the rights to use, copy, modify, merge, ++ publish, distribute, sublicense, and/or sell copies of the Software, ++ and to permit persons to whom the Software is furnished to do so, ++ subject to the following conditions: ++ ++ The above copyright notice and this permission notice shall be ++ included in all copies or substantial portions of the Software. ++ ++ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, ++ EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF ++ MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND ++ NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS ++ BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ++ ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN ++ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE ++ SOFTWARE. ++***/ ++ ++#ifndef _GNU_SOURCE ++#define _GNU_SOURCE ++#endif ++ ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++ ++#if defined(__linux__) ++#include ++#endif ++ ++#include "sd-daemon.h" ++ ++#if (__GNUC__ >= 4) && !defined(SD_EXPORT_SYMBOLS) ++#define _sd_hidden_ __attribute__ ((visibility("hidden"))) ++#else ++#define _sd_hidden_ ++#endif ++ ++_sd_hidden_ int sd_listen_fds(int unset_environment) { ++ ++#if defined(DISABLE_SYSTEMD) || !defined(__linux__) ++ return 0; ++#else ++ int r, fd; ++ const char *e; ++ char *p = NULL; ++ unsigned long l; ++ ++ if (!(e = getenv("LISTEN_PID"))) { ++ r = 0; ++ goto finish; ++ } ++ ++ errno = 0; ++ l = strtoul(e, &p, 10); ++ ++ if (errno != 0) { ++ r = -errno; ++ goto finish; ++ } ++ ++ if (!p || *p || l <= 0) { ++ r = -EINVAL; ++ goto finish; ++ } ++ ++ /* Is this for us? */ ++ if (getpid() != (pid_t) l) { ++ r = 0; ++ goto finish; ++ } ++ ++ if (!(e = getenv("LISTEN_FDS"))) { ++ r = 0; ++ goto finish; ++ } ++ ++ errno = 0; ++ l = strtoul(e, &p, 10); ++ ++ if (errno != 0) { ++ r = -errno; ++ goto finish; ++ } ++ ++ if (!p || *p) { ++ r = -EINVAL; ++ goto finish; ++ } ++ ++ for (fd = SD_LISTEN_FDS_START; fd < SD_LISTEN_FDS_START + (int) l; fd ++) { ++ int flags; ++ ++ if ((flags = fcntl(fd, F_GETFD)) < 0) { ++ r = -errno; ++ goto finish; ++ } ++ ++ if (flags & FD_CLOEXEC) ++ continue; ++ ++ if (fcntl(fd, F_SETFD, flags | FD_CLOEXEC) < 0) { ++ r = -errno; ++ goto finish; ++ } ++ } ++ ++ r = (int) l; ++ ++finish: ++ if (unset_environment) { ++ unsetenv("LISTEN_PID"); ++ unsetenv("LISTEN_FDS"); ++ } ++ ++ return r; ++#endif ++} ++ ++_sd_hidden_ int sd_is_fifo(int fd, const char *path) { ++ struct stat st_fd; ++ ++ if (fd < 0) ++ return -EINVAL; ++ ++ memset(&st_fd, 0, sizeof(st_fd)); ++ if (fstat(fd, &st_fd) < 0) ++ return -errno; ++ ++ if (!S_ISFIFO(st_fd.st_mode)) ++ return 0; ++ ++ if (path) { ++ struct stat st_path; ++ ++ memset(&st_path, 0, sizeof(st_path)); ++ if (stat(path, &st_path) < 0) { ++ ++ if (errno == ENOENT || errno == ENOTDIR) ++ return 0; ++ ++ return -errno; ++ } ++ ++ return ++ st_path.st_dev == st_fd.st_dev && ++ st_path.st_ino == st_fd.st_ino; ++ } ++ ++ return 1; ++} ++ ++_sd_hidden_ int sd_is_special(int fd, const char *path) { ++ struct stat st_fd; ++ ++ if (fd < 0) ++ return -EINVAL; ++ ++ if (fstat(fd, &st_fd) < 0) ++ return -errno; ++ ++ if (!S_ISREG(st_fd.st_mode) && !S_ISCHR(st_fd.st_mode)) ++ return 0; ++ ++ if (path) { ++ struct stat st_path; ++ ++ if (stat(path, &st_path) < 0) { ++ ++ if (errno == ENOENT || errno == ENOTDIR) ++ return 0; ++ ++ return -errno; ++ } ++ ++ if (S_ISREG(st_fd.st_mode) && S_ISREG(st_path.st_mode)) ++ return ++ st_path.st_dev == st_fd.st_dev && ++ st_path.st_ino == st_fd.st_ino; ++ else if (S_ISCHR(st_fd.st_mode) && S_ISCHR(st_path.st_mode)) ++ return st_path.st_rdev == st_fd.st_rdev; ++ else ++ return 0; ++ } ++ ++ return 1; ++} ++ ++static int sd_is_socket_internal(int fd, int type, int listening) { ++ struct stat st_fd; ++ ++ if (fd < 0 || type < 0) ++ return -EINVAL; ++ ++ if (fstat(fd, &st_fd) < 0) ++ return -errno; ++ ++ if (!S_ISSOCK(st_fd.st_mode)) ++ return 0; ++ ++ if (type != 0) { ++ int other_type = 0; ++ socklen_t l = sizeof(other_type); ++ ++ if (getsockopt(fd, SOL_SOCKET, SO_TYPE, &other_type, &l) < 0) ++ return -errno; ++ ++ if (l != sizeof(other_type)) ++ return -EINVAL; ++ ++ if (other_type != type) ++ return 0; ++ } ++ ++ if (listening >= 0) { ++ int accepting = 0; ++ socklen_t l = sizeof(accepting); ++ ++ if (getsockopt(fd, SOL_SOCKET, SO_ACCEPTCONN, &accepting, &l) < 0) ++ return -errno; ++ ++ if (l != sizeof(accepting)) ++ return -EINVAL; ++ ++ if (!accepting != !listening) ++ return 0; ++ } ++ ++ return 1; ++} ++ ++union sockaddr_union { ++ struct sockaddr sa; ++ struct sockaddr_in in4; ++ struct sockaddr_in6 in6; ++ struct sockaddr_un un; ++ struct sockaddr_storage storage; ++}; ++ ++_sd_hidden_ int sd_is_socket(int fd, int family, int type, int listening) { ++ int r; ++ ++ if (family < 0) ++ return -EINVAL; ++ ++ if ((r = sd_is_socket_internal(fd, type, listening)) <= 0) ++ return r; ++ ++ if (family > 0) { ++ union sockaddr_union sockaddr; ++ socklen_t l; ++ ++ memset(&sockaddr, 0, sizeof(sockaddr)); ++ l = sizeof(sockaddr); ++ ++ if (getsockname(fd, &sockaddr.sa, &l) < 0) ++ return -errno; ++ ++ if (l < sizeof(sa_family_t)) ++ return -EINVAL; ++ ++ return sockaddr.sa.sa_family == family; ++ } ++ ++ return 1; ++} ++ ++_sd_hidden_ int sd_is_socket_inet(int fd, int family, int type, int listening, uint16_t port) { ++ union sockaddr_union sockaddr; ++ socklen_t l; ++ int r; ++ ++ if (family != 0 && family != AF_INET && family != AF_INET6) ++ return -EINVAL; ++ ++ if ((r = sd_is_socket_internal(fd, type, listening)) <= 0) ++ return r; ++ ++ memset(&sockaddr, 0, sizeof(sockaddr)); ++ l = sizeof(sockaddr); ++ ++ if (getsockname(fd, &sockaddr.sa, &l) < 0) ++ return -errno; ++ ++ if (l < sizeof(sa_family_t)) ++ return -EINVAL; ++ ++ if (sockaddr.sa.sa_family != AF_INET && ++ sockaddr.sa.sa_family != AF_INET6) ++ return 0; ++ ++ if (family > 0) ++ if (sockaddr.sa.sa_family != family) ++ return 0; ++ ++ if (port > 0) { ++ if (sockaddr.sa.sa_family == AF_INET) { ++ if (l < sizeof(struct sockaddr_in)) ++ return -EINVAL; ++ ++ return htons(port) == sockaddr.in4.sin_port; ++ } else { ++ if (l < sizeof(struct sockaddr_in6)) ++ return -EINVAL; ++ ++ return htons(port) == sockaddr.in6.sin6_port; ++ } ++ } ++ ++ return 1; ++} ++ ++_sd_hidden_ int sd_is_socket_unix(int fd, int type, int listening, const char *path, size_t length) { ++ union sockaddr_union sockaddr; ++ socklen_t l; ++ int r; ++ ++ if ((r = sd_is_socket_internal(fd, type, listening)) <= 0) ++ return r; ++ ++ memset(&sockaddr, 0, sizeof(sockaddr)); ++ l = sizeof(sockaddr); ++ ++ if (getsockname(fd, &sockaddr.sa, &l) < 0) ++ return -errno; ++ ++ if (l < sizeof(sa_family_t)) ++ return -EINVAL; ++ ++ if (sockaddr.sa.sa_family != AF_UNIX) ++ return 0; ++ ++ if (path) { ++ if (length <= 0) ++ length = strlen(path); ++ ++ if (length <= 0) ++ /* Unnamed socket */ ++ return l == offsetof(struct sockaddr_un, sun_path); ++ ++ if (path[0]) ++ /* Normal path socket */ ++ return ++ (l >= offsetof(struct sockaddr_un, sun_path) + length + 1) && ++ memcmp(path, sockaddr.un.sun_path, length+1) == 0; ++ else ++ /* Abstract namespace socket */ ++ return ++ (l == offsetof(struct sockaddr_un, sun_path) + length) && ++ memcmp(path, sockaddr.un.sun_path, length) == 0; ++ } ++ ++ return 1; ++} ++ ++_sd_hidden_ int sd_is_mq(int fd, const char *path) { ++#if !defined(__linux__) ++ return 0; ++#else ++ struct mq_attr attr; ++ ++ if (fd < 0) ++ return -EINVAL; ++ ++ if (mq_getattr(fd, &attr) < 0) ++ return -errno; ++ ++ if (path) { ++ char fpath[PATH_MAX]; ++ struct stat a, b; ++ ++ if (path[0] != '/') ++ return -EINVAL; ++ ++ if (fstat(fd, &a) < 0) ++ return -errno; ++ ++ strncpy(stpcpy(fpath, "/dev/mqueue"), path, sizeof(fpath) - 12); ++ fpath[sizeof(fpath)-1] = 0; ++ ++ if (stat(fpath, &b) < 0) ++ return -errno; ++ ++ if (a.st_dev != b.st_dev || ++ a.st_ino != b.st_ino) ++ return 0; ++ } ++ ++ return 1; ++#endif ++} ++ ++_sd_hidden_ int sd_notify(int unset_environment, const char *state) { ++#if defined(DISABLE_SYSTEMD) || !defined(__linux__) || !defined(SOCK_CLOEXEC) ++ return 0; ++#else ++ int fd = -1, r; ++ struct msghdr msghdr; ++ struct iovec iovec; ++ union sockaddr_union sockaddr; ++ const char *e; ++ ++ if (!state) { ++ r = -EINVAL; ++ goto finish; ++ } ++ ++ if (!(e = getenv("NOTIFY_SOCKET"))) ++ return 0; ++ ++ /* Must be an abstract socket, or an absolute path */ ++ if ((e[0] != '@' && e[0] != '/') || e[1] == 0) { ++ r = -EINVAL; ++ goto finish; ++ } ++ ++ if ((fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0)) < 0) { ++ r = -errno; ++ goto finish; ++ } ++ ++ memset(&sockaddr, 0, sizeof(sockaddr)); ++ sockaddr.sa.sa_family = AF_UNIX; ++ strncpy(sockaddr.un.sun_path, e, sizeof(sockaddr.un.sun_path)); ++ ++ if (sockaddr.un.sun_path[0] == '@') ++ sockaddr.un.sun_path[0] = 0; ++ ++ memset(&iovec, 0, sizeof(iovec)); ++ iovec.iov_base = (char*) state; ++ iovec.iov_len = strlen(state); ++ ++ memset(&msghdr, 0, sizeof(msghdr)); ++ msghdr.msg_name = &sockaddr; ++ msghdr.msg_namelen = offsetof(struct sockaddr_un, sun_path) + strlen(e); ++ ++ if (msghdr.msg_namelen > sizeof(struct sockaddr_un)) ++ msghdr.msg_namelen = sizeof(struct sockaddr_un); ++ ++ msghdr.msg_iov = &iovec; ++ msghdr.msg_iovlen = 1; ++ ++ if (sendmsg(fd, &msghdr, MSG_NOSIGNAL) < 0) { ++ r = -errno; ++ goto finish; ++ } ++ ++ r = 1; ++ ++finish: ++ if (unset_environment) ++ unsetenv("NOTIFY_SOCKET"); ++ ++ if (fd >= 0) ++ close(fd); ++ ++ return r; ++#endif ++} ++ ++_sd_hidden_ int sd_notifyf(int unset_environment, const char *format, ...) { ++#if defined(DISABLE_SYSTEMD) || !defined(__linux__) ++ return 0; ++#else ++ va_list ap; ++ char *p = NULL; ++ int r; ++ ++ va_start(ap, format); ++ r = vasprintf(&p, format, ap); ++ va_end(ap); ++ ++ if (r < 0 || !p) ++ return -ENOMEM; ++ ++ r = sd_notify(unset_environment, p); ++ free(p); ++ ++ return r; ++#endif ++} ++ ++_sd_hidden_ int sd_booted(void) { ++#if defined(DISABLE_SYSTEMD) || !defined(__linux__) ++ return 0; ++#else ++ ++ struct stat a, b; ++ ++ /* We simply test whether the systemd cgroup hierarchy is ++ * mounted */ ++ ++ if (lstat("/sys/fs/cgroup", &a) < 0) ++ return 0; ++ ++ if (lstat("/sys/fs/cgroup/systemd", &b) < 0) ++ return 0; ++ ++ return a.st_dev != b.st_dev; ++#endif ++} +diff --git a/scheduler/sd-daemon.h b/scheduler/sd-daemon.h +new file mode 100644 +index 0000000..46dc7fd +--- /dev/null ++++ b/scheduler/sd-daemon.h +@@ -0,0 +1,277 @@ ++/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ ++ ++#ifndef foosddaemonhfoo ++#define foosddaemonhfoo ++ ++/*** ++ Copyright 2010 Lennart Poettering ++ ++ Permission is hereby granted, free of charge, to any person ++ obtaining a copy of this software and associated documentation files ++ (the "Software"), to deal in the Software without restriction, ++ including without limitation the rights to use, copy, modify, merge, ++ publish, distribute, sublicense, and/or sell copies of the Software, ++ and to permit persons to whom the Software is furnished to do so, ++ subject to the following conditions: ++ ++ The above copyright notice and this permission notice shall be ++ included in all copies or substantial portions of the Software. ++ ++ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, ++ EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF ++ MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND ++ NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS ++ BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ++ ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN ++ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE ++ SOFTWARE. ++***/ ++ ++#include ++#include ++ ++#ifdef __cplusplus ++extern "C" { ++#endif ++ ++/* ++ Reference implementation of a few systemd related interfaces for ++ writing daemons. These interfaces are trivial to implement. To ++ simplify porting we provide this reference implementation. ++ Applications are welcome to reimplement the algorithms described ++ here if they do not want to include these two source files. ++ ++ The following functionality is provided: ++ ++ - Support for logging with log levels on stderr ++ - File descriptor passing for socket-based activation ++ - Daemon startup and status notification ++ - Detection of systemd boots ++ ++ You may compile this with -DDISABLE_SYSTEMD to disable systemd ++ support. This makes all those calls NOPs that are directly related to ++ systemd (i.e. only sd_is_xxx() will stay useful). ++ ++ Since this is drop-in code we don't want any of our symbols to be ++ exported in any case. Hence we declare hidden visibility for all of ++ them. ++ ++ You may find an up-to-date version of these source files online: ++ ++ http://cgit.freedesktop.org/systemd/plain/src/sd-daemon.h ++ http://cgit.freedesktop.org/systemd/plain/src/sd-daemon.c ++ ++ This should compile on non-Linux systems, too, but with the ++ exception of the sd_is_xxx() calls all functions will become NOPs. ++ ++ See sd-daemon(7) for more information. ++*/ ++ ++#ifndef _sd_printf_attr_ ++#if __GNUC__ >= 4 ++#define _sd_printf_attr_(a,b) __attribute__ ((format (printf, a, b))) ++#else ++#define _sd_printf_attr_(a,b) ++#endif ++#endif ++ ++/* ++ Log levels for usage on stderr: ++ ++ fprintf(stderr, SD_NOTICE "Hello World!\n"); ++ ++ This is similar to printk() usage in the kernel. ++*/ ++#define SD_EMERG "<0>" /* system is unusable */ ++#define SD_ALERT "<1>" /* action must be taken immediately */ ++#define SD_CRIT "<2>" /* critical conditions */ ++#define SD_ERR "<3>" /* error conditions */ ++#define SD_WARNING "<4>" /* warning conditions */ ++#define SD_NOTICE "<5>" /* normal but significant condition */ ++#define SD_INFO "<6>" /* informational */ ++#define SD_DEBUG "<7>" /* debug-level messages */ ++ ++/* The first passed file descriptor is fd 3 */ ++#define SD_LISTEN_FDS_START 3 ++ ++/* ++ Returns how many file descriptors have been passed, or a negative ++ errno code on failure. Optionally, removes the $LISTEN_FDS and ++ $LISTEN_PID file descriptors from the environment (recommended, but ++ problematic in threaded environments). If r is the return value of ++ this function you'll find the file descriptors passed as fds ++ SD_LISTEN_FDS_START to SD_LISTEN_FDS_START+r-1. Returns a negative ++ errno style error code on failure. This function call ensures that ++ the FD_CLOEXEC flag is set for the passed file descriptors, to make ++ sure they are not passed on to child processes. If FD_CLOEXEC shall ++ not be set, the caller needs to unset it after this call for all file ++ descriptors that are used. ++ ++ See sd_listen_fds(3) for more information. ++*/ ++int sd_listen_fds(int unset_environment); ++ ++/* ++ Helper call for identifying a passed file descriptor. Returns 1 if ++ the file descriptor is a FIFO in the file system stored under the ++ specified path, 0 otherwise. If path is NULL a path name check will ++ not be done and the call only verifies if the file descriptor ++ refers to a FIFO. Returns a negative errno style error code on ++ failure. ++ ++ See sd_is_fifo(3) for more information. ++*/ ++int sd_is_fifo(int fd, const char *path); ++ ++/* ++ Helper call for identifying a passed file descriptor. Returns 1 if ++ the file descriptor is a special character device on the file ++ system stored under the specified path, 0 otherwise. ++ If path is NULL a path name check will not be done and the call ++ only verifies if the file descriptor refers to a special character. ++ Returns a negative errno style error code on failure. ++ ++ See sd_is_special(3) for more information. ++*/ ++int sd_is_special(int fd, const char *path); ++ ++/* ++ Helper call for identifying a passed file descriptor. Returns 1 if ++ the file descriptor is a socket of the specified family (AF_INET, ++ ...) and type (SOCK_DGRAM, SOCK_STREAM, ...), 0 otherwise. If ++ family is 0 a socket family check will not be done. If type is 0 a ++ socket type check will not be done and the call only verifies if ++ the file descriptor refers to a socket. If listening is > 0 it is ++ verified that the socket is in listening mode. (i.e. listen() has ++ been called) If listening is == 0 it is verified that the socket is ++ not in listening mode. If listening is < 0 no listening mode check ++ is done. Returns a negative errno style error code on failure. ++ ++ See sd_is_socket(3) for more information. ++*/ ++int sd_is_socket(int fd, int family, int type, int listening); ++ ++/* ++ Helper call for identifying a passed file descriptor. Returns 1 if ++ the file descriptor is an Internet socket, of the specified family ++ (either AF_INET or AF_INET6) and the specified type (SOCK_DGRAM, ++ SOCK_STREAM, ...), 0 otherwise. If version is 0 a protocol version ++ check is not done. If type is 0 a socket type check will not be ++ done. If port is 0 a socket port check will not be done. The ++ listening flag is used the same way as in sd_is_socket(). Returns a ++ negative errno style error code on failure. ++ ++ See sd_is_socket_inet(3) for more information. ++*/ ++int sd_is_socket_inet(int fd, int family, int type, int listening, uint16_t port); ++ ++/* ++ Helper call for identifying a passed file descriptor. Returns 1 if ++ the file descriptor is an AF_UNIX socket of the specified type ++ (SOCK_DGRAM, SOCK_STREAM, ...) and path, 0 otherwise. If type is 0 ++ a socket type check will not be done. If path is NULL a socket path ++ check will not be done. For normal AF_UNIX sockets set length to ++ 0. For abstract namespace sockets set length to the length of the ++ socket name (including the initial 0 byte), and pass the full ++ socket path in path (including the initial 0 byte). The listening ++ flag is used the same way as in sd_is_socket(). Returns a negative ++ errno style error code on failure. ++ ++ See sd_is_socket_unix(3) for more information. ++*/ ++int sd_is_socket_unix(int fd, int type, int listening, const char *path, size_t length); ++ ++/* ++ Helper call for identifying a passed file descriptor. Returns 1 if ++ the file descriptor is a POSIX Message Queue of the specified name, ++ 0 otherwise. If path is NULL a message queue name check is not ++ done. Returns a negative errno style error code on failure. ++*/ ++int sd_is_mq(int fd, const char *path); ++ ++/* ++ Informs systemd about changed daemon state. This takes a number of ++ newline separated environment-style variable assignments in a ++ string. The following variables are known: ++ ++ READY=1 Tells systemd that daemon startup is finished (only ++ relevant for services of Type=notify). The passed ++ argument is a boolean "1" or "0". Since there is ++ little value in signaling non-readiness the only ++ value daemons should send is "READY=1". ++ ++ STATUS=... Passes a single-line status string back to systemd ++ that describes the daemon state. This is free-from ++ and can be used for various purposes: general state ++ feedback, fsck-like programs could pass completion ++ percentages and failing programs could pass a human ++ readable error message. Example: "STATUS=Completed ++ 66% of file system check..." ++ ++ ERRNO=... If a daemon fails, the errno-style error code, ++ formatted as string. Example: "ERRNO=2" for ENOENT. ++ ++ BUSERROR=... If a daemon fails, the D-Bus error-style error ++ code. Example: "BUSERROR=org.freedesktop.DBus.Error.TimedOut" ++ ++ MAINPID=... The main pid of a daemon, in case systemd did not ++ fork off the process itself. Example: "MAINPID=4711" ++ ++ Daemons can choose to send additional variables. However, it is ++ recommended to prefix variable names not listed above with X_. ++ ++ Returns a negative errno-style error code on failure. Returns > 0 ++ if systemd could be notified, 0 if it couldn't possibly because ++ systemd is not running. ++ ++ Example: When a daemon finished starting up, it could issue this ++ call to notify systemd about it: ++ ++ sd_notify(0, "READY=1"); ++ ++ See sd_notifyf() for more complete examples. ++ ++ See sd_notify(3) for more information. ++*/ ++int sd_notify(int unset_environment, const char *state); ++ ++/* ++ Similar to sd_notify() but takes a format string. ++ ++ Example 1: A daemon could send the following after initialization: ++ ++ sd_notifyf(0, "READY=1\n" ++ "STATUS=Processing requests...\n" ++ "MAINPID=%lu", ++ (unsigned long) getpid()); ++ ++ Example 2: A daemon could send the following shortly before ++ exiting, on failure: ++ ++ sd_notifyf(0, "STATUS=Failed to start up: %s\n" ++ "ERRNO=%i", ++ strerror(errno), ++ errno); ++ ++ See sd_notifyf(3) for more information. ++*/ ++int sd_notifyf(int unset_environment, const char *format, ...) _sd_printf_attr_(2,3); ++ ++/* ++ Returns > 0 if the system was booted with systemd. Returns < 0 on ++ error. Returns 0 if the system was not booted with systemd. Note ++ that all of the functions above handle non-systemd boots just ++ fine. You should NOT protect them with a call to this function. Also ++ note that this function checks whether the system, not the user ++ session is controlled by systemd. However the functions above work ++ for both user and system services. ++ ++ See sd_booted(3) for more information. ++*/ ++int sd_booted(void); ++ ++#ifdef __cplusplus ++} ++#endif ++ ++#endif +-- +1.7.6 + diff --git a/cups.spec b/cups.spec index 3354d49..10319a8 100644 --- a/cups.spec +++ b/cups.spec @@ -15,7 +15,7 @@ Summary: Common Unix Printing System Name: cups Version: 1.5 -Release: 0.10.%{alphatag}%{?dist} +Release: 0.11.%{alphatag}%{?dist} License: GPLv2 Group: System Environment/Daemons Source: http://ftp.easysw.com/pub/cups/%{version}%{alphatag}/cups-%{version}%{alphatag}-source.tar.bz2 @@ -67,7 +67,7 @@ Patch29: cups-ricoh-deviceid-oid.patch Patch31: cups-avahi.patch Patch32: cups-icc.patch -Patch33: 0001-systemd-add-systemd-socket-activation-and-unit-files.patch +Patch33: cups-systemd-socket.patch Patch100: cups-lspp.patch @@ -277,7 +277,9 @@ Sends IPP requests to the specified URI and tests and/or displays the results. # ICC colord support. %patch32 -p1 -b .icc -%patch33 -p1 -b .systemd +# Add support for systemd socket activation (patch from Lennart +# Poettering). +%patch33 -p1 -b .systemd-socket %if %lspp # LSPP support. @@ -626,6 +628,10 @@ rm -rf $RPM_BUILD_ROOT %{_mandir}/man1/ipptool.1.gz %changelog +* Tue Jul 5 2011 Tim Waugh 1:1.5-0.11.rc1 +- Add support for systemd socket activation (patch from Lennart + Poettering). + * Wed Jun 29 2011 Tim Waugh 1:1.5-0.10.rc1 - Don't use portreserve any more. Better approach is to use systemd socket activation (not yet done).