From f26e6eeba5d0e963bad156d7c070a99303a00b40 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?P=C5=99emysl=20Janouch?= Date: Wed, 5 Jul 2017 21:57:16 +0200 Subject: priod: initialize properly --- priod.c | 27 ++++++++++++++++++++++++++- 1 file changed, 26 insertions(+), 1 deletion(-) (limited to 'priod.c') diff --git a/priod.c b/priod.c index 07d2de0..dcce2ff 100644 --- a/priod.c +++ b/priod.c @@ -319,6 +319,27 @@ on_exec (struct app_context *ctx, int pid) str_free (&cmdline); } +static void +preapply_rules (struct app_context *ctx) +{ + DIR *dir = opendir ("/proc"); + if (!dir) + { + print_error ("opendir: %s: %s", "/proc", strerror (errno)); + return; + } + + // We don't care about processes deleted or created during this loop + struct dirent *iter; + while ((errno = 0, iter = readdir (dir))) + { + int pid = atoi (iter->d_name); + if (pid && (iter->d_type == DT_UNKNOWN || iter->d_type == DT_DIR)) + on_exec (ctx, pid); + } + closedir (dir); +} + static void on_netlink_message (struct app_context *ctx, struct nlmsghdr *mh) { @@ -522,7 +543,11 @@ main (int argc, char *argv[]) ctx.proc_event.user_data = &ctx; poller_fd_set (&ctx.proc_event, POLLIN); - // TODO: iterate through current /proc processes and apply politics + // While new events are being queued, we can apply rules to already + // existing processes, so that we don't miss anything except for obvious + // cases when a process re-execs to something else after a match. + // It would inherit the same values anyway, so it seems to be mostly okay. + preapply_rules (&ctx); ctx.polling = true; while (ctx.polling) -- cgit v1.2.3