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moved Reverse Engineering Notes to separate project

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ref.: https://git.collinwebdesigns.de/nvidia/nls
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doc/Database.md
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# Database structure
## `request_routing.service_instance`
| xid | org_name |
|----------------------------------------|--------------------------|
| `10000000-0000-0000-0000-000000000000` | `lic-000000000000000000` |
- `xid` is used as `SERVICE_INSTANCE_XID`
## `request_routing.license_allotment_service_instance`
| xid | service_instance_xid | license_allotment_xid |
|----------------------------------------|----------------------------------------|----------------------------------------|
| `90000000-0000-0000-0000-000000000001` | `10000000-0000-0000-0000-000000000000` | `80000000-0000-0000-0000-000000000001` |
- `xid` is only a primary-key and never used as foreign-key or reference
- `license_allotment_xid` must be used to fetch `xid`'s from `request_routing.license_allotment_reference`
## `request_routing.license_allotment_reference`
| xid | license_allotment_xid |
|----------------------------------------|----------------------------------------|
| `20000000-0000-0000-0000-000000000001` | `80000000-0000-0000-0000-000000000001` |
- `xid` is used as `scope_ref_list` on token request

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doc/Reverse Engineering Notes.md
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# Reverse Engineering Notes
[[_TOC_]]
# NLS Docker Stack
- More about Docker Images https://git.collinwebdesigns.de/nvidia/nls
## Appliance
### Configuration data
- Most variables and configs are stored in `/var/lib/docker/volumes/configurations/_data`.
- Config-Variables are in `etc/dls/config/service_env.conf`.
### NLS Logs
Logs are found in `/var/lib/docker/volumes/logs/_data`.
Most interesting logs are:
- `fileInstallation.log`
- `serviceInstance.log`
### File manipulation and copy
- Files can be copied with `docker cp <container-id>:/venv/... /opt/localfile/...`.
- Files can be directly edited via Docker-Volume mounts
- see `df -h` (one is nls, the other postgres container)
```
overlay 16G 11G 5.6G 66% /var/lib/docker/overlay2/<hash>/merged
overlay 16G 11G 5.6G 66% /var/lib/docker/overlay2/<hash>/merged
```
- then you can edit files with e.g. `nano venv/lib/python3.12/site-packages/...`
### Other tools / files
Other tools / files which may can helpful, but not known for what they are used.
- `/etc/dls/config/decryptor/decryptor`
- `/etc/dls/config/site_key_uri.bin`
- `/etc/dls/config/dls_db_password.bin`
## Database
- It's enough to manipulate database licenses. There must not be changed any line of code to bypass licensing
validations.
Valid users are `dls_writer` and `postgres`.
```shell
docker exec -it <dls:pgsql> psql -h localhost -U postgres
```
If you want external access to database, you have to add `ports: [ 5432:5432 ]` to postgres section in
`docker-compose.yml`.
Then you can *exec* into container with `psql` and add a new superuser:
```sql
CREATE
USER admin WITH LOGIN SUPERUSER PASSWORD 'admin';
```
# Logging / Stack Trace
- https://docs.nvidia.com/license-system/latest/nvidia-license-system-user-guide/index.html#troubleshooting-dls-instance
# Nginx
- NGINX uses `/opt/certs/cert.pem` and `/opt/certs/key.pem`
# Usefully commands on Client
## Check licensing status
- `nvidia-smi -q | grep "License"`
**Output**
```
vGPU Software Licensed Product
License Status : Licensed (Expiry: 2023-1-14 12:59:52 GMT)
```
## Track licensing progress
- NVIDIA Grid Log: `journalctl -u nvidia-gridd -f`
```
systemd: Started NVIDIA Grid Daemon.
nvidia-gridd: Configuration parameter ( ServerAddress ) not set
nvidia-gridd: vGPU Software package (0)
nvidia-gridd: Ignore service provider and node-locked licensing
nvidia-gridd: NLS initialized
nvidia-gridd: Acquiring license. (Info: license.nvidia.space; NVIDIA RTX Virtual Workstation)
nvidia-gridd: License acquired successfully. (Info: license.nvidia.space, NVIDIA RTX Virtual Workstation; Expiry: 2023-1-29 22:3:0 GMT)
```