From 03aab02afbfe00f4ee767d3fbc234ea348a34179 Mon Sep 17 00:00:00 2001 From: John Crispin Date: Tue, 3 Sep 2013 20:04:49 +0200 Subject: [PATCH] add a ubus handler that allows sending signals to processes Signed-off-by: John Crispin --- system.c | 32 +++++++++++++++++++++++++++++++- 1 file changed, 31 insertions(+), 1 deletion(-) diff --git a/system.c b/system.c index 7ca4360..0b3c466 100644 --- a/system.c +++ b/system.c @@ -18,7 +18,7 @@ #include #include #include - +#include #include #include @@ -257,11 +257,41 @@ static int watchdog_set(struct ubus_context *ctx, struct ubus_object *obj, return 0; } +enum { + SIGNAL_PID, + SIGNAL_NUM, + __SIGNAL_MAX +}; + +static const struct blobmsg_policy signal_policy[__WDT_MAX] = { + [SIGNAL_PID] = { .name = "pid", .type = BLOBMSG_TYPE_INT32 }, + [SIGNAL_NUM] = { .name = "signum", .type = BLOBMSG_TYPE_INT32 }, +}; + +static int proc_signal(struct ubus_context *ctx, struct ubus_object *obj, + struct ubus_request_data *req, const char *method, + struct blob_attr *msg) +{ + struct blob_attr *tb[__SIGNAL_MAX]; + + if (!msg) + return UBUS_STATUS_INVALID_ARGUMENT; + + blobmsg_parse(signal_policy, __SIGNAL_MAX, tb, blob_data(msg), blob_len(msg)); + if (!tb[SIGNAL_PID || !tb[SIGNAL_NUM]]) + return UBUS_STATUS_INVALID_ARGUMENT; + + kill(blobmsg_get_u32(tb[SIGNAL_PID]), blobmsg_get_u32(tb[SIGNAL_NUM])); + + return 0; +} + static const struct ubus_method system_methods[] = { UBUS_METHOD_NOARG("board", system_board), UBUS_METHOD_NOARG("info", system_info), UBUS_METHOD_NOARG("upgrade", system_upgrade), UBUS_METHOD("watchdog", watchdog_set, watchdog_policy), + UBUS_METHOD("signal", proc_signal, signal_policy), }; static struct ubus_object_type system_object_type = -- 2.25.1