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authorJulian Andres Klode <jak@debian.org>2017-09-09 18:01:23 +0200
committerJulian Andres Klode <jak@debian.org>2017-09-09 18:36:10 +0200
commit669e9a9a3d80d4e60b96d676d0dae8a0be8bd252 (patch)
tree26496f1b188b67a02be1154038b6487b27269f9d /cmdline/apt-helper.cc
parent923522367a28be7235bf6459abfeae89fafffcf1 (diff)
apt-daily: Wait for network before daily updates
Introduce a new helper, apt-helper wait-online that uses NetworkManager and/or systemd-networkd to wait for them reporting online, with a time out of 30 seconds; and run that helper before running the daily update script. LP: #1699850 Gbp-Dch: Full
Diffstat (limited to 'cmdline/apt-helper.cc')
-rw-r--r--cmdline/apt-helper.cc52
1 files changed, 46 insertions, 6 deletions
diff --git a/cmdline/apt-helper.cc b/cmdline/apt-helper.cc
index 59b72ec25..1f1285eb4 100644
--- a/cmdline/apt-helper.cc
+++ b/cmdline/apt-helper.cc
@@ -30,6 +30,8 @@
#include <vector>
#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/wait.h>
#include <unistd.h>
#include <apti18n.h>
@@ -176,6 +178,44 @@ static bool DoCatFile(CommandLine &CmdL) /*{{{*/
return true;
}
/*}}}*/
+
+static pid_t ExecuteProcess(const char *Args[]) /*{{{*/
+{
+ pid_t pid = ExecFork();
+ if (pid == 0)
+ {
+ execvp(Args[0], (char **)Args);
+ _exit(100);
+ }
+ return pid;
+}
+
+static bool ServiceIsActive(const char *service)
+{
+ const char *argv[] = {"systemctl", "is-active", "-q", service, nullptr};
+ pid_t pid = ExecuteProcess(argv);
+ return ExecWait(pid, "systemctl is-active", true);
+}
+
+static bool DoWaitOnline(CommandLine &CmdL)
+{
+ static const char *WaitingTasks[][6] = {
+ {"systemd-networkd.service", "/lib/systemd/systemd-networkd-wait-online", "-q", "--timeout=30", nullptr},
+ {"NetworkManager.service", "nm-online", "-q", "--timeout", "30", nullptr}};
+
+ for (const char **task : WaitingTasks)
+ {
+ if (ServiceIsActive(task[0]))
+ {
+ pid_t pid = ExecuteProcess(task + 1);
+
+ ExecWait(pid, task[1]);
+ }
+ }
+
+ return _error->PendingError() == false;
+}
+ /*}}}*/
static bool ShowHelp(CommandLine &) /*{{{*/
{
std::cout <<
@@ -191,12 +231,12 @@ static bool ShowHelp(CommandLine &) /*{{{*/
static std::vector<aptDispatchWithHelp> GetCommands() /*{{{*/
{
return {
- {"download-file", &DoDownloadFile, _("download the given uri to the target-path")},
- {"srv-lookup", &DoSrvLookup, _("lookup a SRV record (e.g. _http._tcp.ftp.debian.org)")},
- {"cat-file", &DoCatFile, _("concatenate files, with automatic decompression")},
- {"auto-detect-proxy", &DoAutoDetectProxy, _("detect proxy using apt.conf")},
- {nullptr, nullptr, nullptr}
- };
+ {"download-file", &DoDownloadFile, _("download the given uri to the target-path")},
+ {"srv-lookup", &DoSrvLookup, _("lookup a SRV record (e.g. _http._tcp.ftp.debian.org)")},
+ {"cat-file", &DoCatFile, _("concatenate files, with automatic decompression")},
+ {"auto-detect-proxy", &DoAutoDetectProxy, _("detect proxy using apt.conf")},
+ {"wait-online", &DoWaitOnline, _("wait for system to be online")},
+ {nullptr, nullptr, nullptr}};
}
/*}}}*/
int main(int argc,const char *argv[]) /*{{{*/