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Fix in-air restarts, protect against an external MAVLink sender exploiting the restart mechanism

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Lorenz Meier
2014-05-06 14:57:06 +02:00
parent 13ad95169f
commit 1d6b9fae03
3 changed files with 31 additions and 4 deletions
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src/drivers/px4io/px4io.cpp
+20 -4
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@@ -683,6 +683,25 @@ PX4IO::init()
/* send command to arm system via command API */
vehicle_command_s cmd;
/* send this to itself */
param_t sys_id_param = param_find("MAV_SYS_ID");
param_t comp_id_param = param_find("MAV_COMP_ID");
int32_t sys_id;
int32_t comp_id;
if (param_get(sys_id_param, &sys_id)) {
errx(1, "PRM SYSID");
}
if (param_get(comp_id_param, &comp_id)) {
errx(1, "PRM CMPID");
}
cmd.target_system = sys_id;
cmd.target_component = comp_id;
cmd.source_system = sys_id;
cmd.source_component = comp_id;
/* request arming */
cmd.param1 = 1.0f;
cmd.param2 = 0;
@@ -692,10 +711,7 @@ PX4IO::init()
cmd.param6 = 0;
cmd.param7 = 0;
cmd.command = VEHICLE_CMD_COMPONENT_ARM_DISARM;
// cmd.target_system = status.system_id;
// cmd.target_component = status.component_id;
// cmd.source_system = status.system_id;
// cmd.source_component = status.component_id;
/* ask to confirm command */
cmd.confirmation = 1;