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This removes the flow encryption option (cypher_s) from the qosspec.
The configuration file is configured in the security options (default
/etc/ouroboros/security/). For this poc, encryption can be disabled
client or server side by putting an enc.cfg file. If that file is
present in the client folder, the client will require encryption. If
that file is present on the server side, the server will require
encryption and reject non-encrypted flows.
Encryption is now configured outside of any application control.
Example: /etc/ouroboros/security/client/oping/enc.cfg exists:
irmd(II): Encryption enabled for oping.
irmd(DB): File /etc/ouroboros/security/client/oping/crt.pem does not exist.
irmd(II): No security info for oping.
irmd(DB): Generated ephemeral keys for 87474.
irmd/oap(PP): OAP_HDR [caf203681d997941 @ 2025-09-02 17:08:05 (UTC) ] -->
irmd/oap(PP): Certificate: <none>
irmd/oap(PP): Ephemeral Public Key: [91 bytes]
irmd/oap(PP): Data: <none>
irmd/oap(PP): Signature: <none>
Example: /etc/ouroboros/security/client/oping/enc.cfg does not exist:
irmd(II): Allocating flow for 87506 to oping.
irmd(DB): File /etc/ouroboros/security/client/oping/enc.cfg does not exist.
irmd(DB): File /etc/ouroboros/security/client/oping/crt.pem does not exist.
irmd(II): No security info for oping.
irmd/oap(PP): OAP_HDR [e84bb9d7c3d9c002 @ 2025-09-02 17:08:30 (UTC) ] -->
irmd/oap(PP): Certificate: <none>
irmd/oap(PP): Ephemeral Public Key: <none>
irmd/oap(PP): Data: <none>
irmd/oap(PP): Signature: <none>
Example: /etc/ouroboros/security/server/oping/enc.cfg exists:
irmd(II): Flow request arrived for oping.
irmd(DB): IPCP 88112 accepting flow 7 for oping.
irmd(II): Encryption enabled for oping.
irmd(DB): File /etc/ouroboros/security/server/oping/crt.pem does not exist.
irmd(II): No security info for oping.
irmd/oap(PP): OAP_HDR [3c717b3f31dff8df @ 2025-09-02 17:13:06 (UTC) ] <--
irmd/oap(PP): Certificate: <none>
irmd/oap(PP): Ephemeral Public Key: <none>
irmd/oap(PP): Data: <none>
irmd/oap(PP): Signature: <none>
irmd(WW): Encryption required but no key provided.
The server side will pass the ECRYPT to the client:
$ oping -l
Ouroboros ping server started.
Failed to accept flow: -1008
$ oping -n oping -c 1
Failed to allocate flow: -1008.
Encryption on flows can now be changed at runtime without needing to
touch/reconfigure/restart the process.
Note: The ECRYPT result is passed on via the flow allocator responses
through the IPCP (discovered/fixed some endianness issues), but the
reason for rejecting the flow can be considered N+1 information... We
may move that information up into the OAP header at some point.
Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks>
Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
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This adds initial implementation of peer authentication as part of
flow allocation. If credentials are not provided, this will be
accepted and logged as info that the flow is not authenticated.
Certificates and keys are passed as .pem files. The key file should
not be encrypted, else the IRMd will open a prompt for the password.
The default location for these .pem files is in
/etc/ouroboros/security. It is strongly recommended to make this
directory only accessible to root.
├── security
│ ├── cacert
│ │ └── ca.root.o7s.crt.pem
│ ├── client
│ │ ├── <name>
│ │ | ├── crt.pem
│ │ | └── key.pem
│ │ └── <name>
| | ├──...
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│ ├── server
│ │ ├── <name>
│ │ | ├── crt.pem
│ │ | └── key.pem
│ │ └── <name>
| | ├── ...
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│ └── untrusted
│ └── sign.root.o7s.crt.pem
Trusted root CA certificates go in the /cacert directory, untrusted
certificates for signature verification go in the /untrusted
directory. The IRMd will load these certificates at boot. The IRMd
will look for certificates in the /client and /server directories. For
each name a subdirectory can be added and the credentials in that
directory are used to sign the OAP header for flows at flow_alloc() on
the client side and flow_accept() on the server side.
These defaults can be changed at build time using the following
variables (in alphabetical order):
OUROBOROS_CA_CRT_DIR /etc/ouroboros/security/cacert
OUROBOROS_CLI_CRT_DIR /etc/ouroboros/security/client
OUROBOROS_SECURITY_DIR /etc/ouroboros/security
OUROBOROS_SRV_CRT_DIR /etc/ouroboros/security/server
OUROBOROS_UNTRUSTED_DIR /etc/ouroboros/security/untrusted
The directories for the names can also be configured at IRMd boot
using the configuraton file and at runtime when a name is created
using the "irm name create" CLI tool. The user needs to have
permissions to access the keyfile and certificate when specifying the
paths with the "irm name create" CLI tool.
Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks>
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This revises the application flow allocator to use the flow_info
struct/message between the components. Revises the messaging to move
the use protocol buffers to its own source (serdes-irm).
Adds a timeout to the IRMd flow allocator to make sure flow
allocations don't hang forever (this was previously taken care of by
the sanitize thread).
Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks>
Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
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