From patchwork Mon Jan 17 13:15:06 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [RFC,v6,12/23] virtagent: add va.shutdown RPC Date: Mon, 17 Jan 2011 03:15:06 -0000 From: Michael Roth X-Patchwork-Id: 79171 Message-Id: <1295270117-24760-13-git-send-email-mdroth@linux.vnet.ibm.com> To: qemu-devel@nongnu.org Cc: agl@linux.vnet.ibm.com, stefanha@linux.vnet.ibm.com, Jes.Sorensen@redhat.com, marcel.mittelstaedt@de.ibm.com, mdroth@linux.vnet.ibm.com, markus_mueller@de.ibm.com, aliguori@linux.vnet.ibm.com, ryanh@us.ibm.com, abeekhof@redhat.com RPC to initiate guest reboot/halt/powerdown Signed-off-by: Michael Roth --- virtagent-server.c | 58 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 files changed, 58 insertions(+), 0 deletions(-) diff --git a/virtagent-server.c b/virtagent-server.c index f97e4b1..d48c61e 100644 --- a/virtagent-server.c +++ b/virtagent-server.c @@ -163,6 +163,62 @@ EXIT_NOCLOSE: return result; } +/* va_shutdown(): initiate guest shutdown + * rpc return values: none + */ +static xmlrpc_value *va_shutdown(xmlrpc_env *env, + xmlrpc_value *params, + void *user_data) +{ + int ret; + const char *shutdown_type, *shutdown_flag; + xmlrpc_value *result = xmlrpc_build_value(env, "s", "dummy"); + + TRACE("called"); + xmlrpc_decompose_value(env, params, "(s)", &shutdown_type); + if (env->fault_occurred) { + goto out_bad; + } + + if (strcmp(shutdown_type, "halt") == 0) { + shutdown_flag = "-H"; + } else if (strcmp(shutdown_type, "powerdown") == 0) { + shutdown_flag = "-P"; + } else if (strcmp(shutdown_type, "reboot") == 0) { + shutdown_flag = "-r"; + } else { + xmlrpc_faultf(env, "invalid shutdown type: %s", shutdown_type); + goto out_bad; + } + + SLOG("va_shutdown(), shutdown_type:%s", shutdown_type); + + ret = fork(); + if (ret == 0) { + /* child, start the shutdown */ + setsid(); + fclose(stdin); + fclose(stdout); + fclose(stderr); + + sleep(5); + ret = execl("/sbin/shutdown", "shutdown", shutdown_flag, "+0", + "hypervisor initiated shutdown", (char*)NULL); + if (ret < 0) { + LOG("execl() failed: %s", strerror(errno)); + exit(1); + } + TRACE("shouldn't be here"); + exit(0); + } else if (ret < 0) { + xmlrpc_faultf(env, "fork() failed: %s", strerror(errno)); + } + + return result; +out_bad: + return NULL; +} + typedef struct RPCFunction { xmlrpc_value *(*func)(xmlrpc_env *env, xmlrpc_value *param, void *unused); const char *func_name; @@ -173,6 +229,8 @@ static RPCFunction guest_functions[] = { .func_name = "va.getfile" }, { .func = va_getdmesg, .func_name = "va.getdmesg" }, + { .func = va_shutdown, + .func_name = "va.shutdown" }, { NULL, NULL } }; static RPCFunction host_functions[] = {