old-stats: Set process dumpable during stats gathering

/proc/self/io is not accessible otherwise

diff --git a/src/plugins/old-stats/mail-stats-fill.c b/src/plugins/old-stats/mail-stats-fill.c
index 395cece62731816b66e3fdd899d38cdd49025700..b29c800b6f836ac844ae342108e9bd0713884711 100644 (file)
--- a/src/plugins/old-stats/mail-stats-fill.c
+++ b/src/plugins/old-stats/mail-stats-fill.c
@@ -2,6 +2,7 @@
 
 #include "lib.h"
 #include "time-util.h"
+#include "restrict-access.h"
 #include "stats-plugin.h"
 #include "mail-stats.h"
 
@@ -45,6 +46,10 @@ static int process_io_open(void)
 
        if (proc_io_disabled)
                return -1;
+
+       bool dumpable = restrict_access_get_dumpable();
+       if (!dumpable)
+               restrict_access_set_dumpable(TRUE);
        proc_io_fd = open(PROC_IO_PATH, O_RDONLY);
        if (proc_io_fd == -1 && errno == EACCES) {
                /* kludge: if we're running with permissions temporarily
@@ -60,6 +65,8 @@ static int process_io_open(void)
                }
                errno = EACCES;
        }
+       if (!dumpable)
+               restrict_access_set_dumpable(FALSE);
        if (proc_io_fd == -1) {
                /* ignore access errors too, certain security options can
                   prevent root access to this file when not owned by root */