user_mgmt: Recover corrupted nv files (ibm-openbmc#17)

For unknown reasons the nv file size become to 0. To not affect the service, add this condition: If the file is 0 in size, delete the file and throw the exception. Related Issue: openbmc/phosphor-host-ipmid#185 Tested: Make an empty size file, restart ipmid and confirm the recovery was successful. $ rm /var/lib/ipmi/channel_access_nv.json $ touch /var/lib/ipmi/channel_access_nv.json $ systemctl restart phosphor-ipmi-host.service Signed-off-by: LuluTHSu <[email protected]> Signed-off-by: LuluTHSu <[email protected]>
anoo1 · Jun 5, 2024 · 30a41b7 · 30a41b7
1 parent 07b4370
commit 30a41b7
Showing 1 changed file with 9 additions and 0 deletions.
diff --git a/user_channel/channel_mgmt.cpp b/user_channel/channel_mgmt.cpp
@@ -1083,6 +1083,15 @@ int ChannelConfig::readChannelPersistData()
         log<level::DEBUG>("Error in opening IPMI Channel data file");
         return -EIO;
     }
+    else if (!std::experimental::filesystem::file_size(channelNvDataFilename))
+    {
+        log<level::DEBUG>("NV file (channelNvDataFilename) has a size of zero");
+        if (std::experimental::filesystem::remove(channelNvDataFilename))
+        {
+            log<level::DEBUG>("NV file (channelNvDataFilename) is deleted");
+        }
+        return -EIO;
+    }
     try
     {
         // Fill in global structure