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Removes the UDP and Ethernet shim IPCPs. The unicast and broadcast
IPCPs can now directly attach to a "legacy" socket. We adopt Saltzer's
Point-of-Attachment terminology, also advocated in Day's "Patterns in
Network Architecture". The "poa" component manages these
PoA's with one management thread, one link monitoring thread and one
thread per attached point.
For Ethernet PoA's the irm connect and enroll can resolve the
destination IPCP or Layer name with a broadcast name query over the
attached PoAs (first reply wins). UDP PoA's require a destination IP
address or FQDN.
attach to a local endpoint (required both server and client side):
irm ipcp poa attach name a udp 10.0.0.1
irm ipcp poa attach name a udp 10.0.0.1:3435
irm ipcp poa attach name a udp [::1]:3435
irm ipcp poa attach name a eth dev eth0
irm ipcp poa attach name a eth dev eth0 ethertype 0xA000
release a PoA (refused while it carries a flow):
irm ipcp poa detach name a udp 10.0.0.1:3435
irm ipcp poa detach name a eth eth0
list an IPCP's PoAs:
irm ipcp poa list name a
connect to a peer, by name or at an address:
irm ipcp connect name b dst a
irm ipcp connect name b dst a eth
irm ipcp connect name b dst a eth dev eth0
irm ipcp connect name b dst a udp 10.0.0.1:3435
irm ipcp connect name b dst a udp peer.example.com:3435
disconnect by peer name, no address:
irm ipcp disconnect name b dst a
irm ipcp disconnect name b dst a component mgmt
enroll has the same shape as connect:
irm ipcp enroll name b layer lr autobind
irm ipcp enroll name b layer lr autobind eth dev eth0
irm ipcp enroll name b layer lr autobind udp 10.0.0.1:3435
the IRMd config file attaches PoAs and names peers the same way:
udp = [ "10.0.0.1", "10.0.0.1:3436" ]
eth = [ "eth0", {dev="eth1", ethertype=0xA007} ]
enrol={dst="LAN", eth={dev="eth0"}}
conn=[{dst="lan3", eth={}}, {dst="lan4", udp="10.0.0.1:3435"}]
Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks>
Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
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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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Some files had a newline at the end, others didn't. Now they all do.
Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks>
Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
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This is a full revision of the IRMd internal implementation.
The registry is now a proper subcomponent managing its own internal
lock (a single mutex). Some tests are added for the registry and its
data structures. Some macros for tests are added in <ouroboros/test.h>.
Flow allocation is now more symmetric between the client side (alloc)
and server size (accept). Each will create a flow in pending state
(ALLOC_PENDING/ACCEPT_PENDING) that is potentially fulfilled by an
IPCP using respond_alloc and respond_accept primitives. Deallocation
is split in flow_dealloc (application side) and ipcp_flow_dealloc
(IPCP side) to get the flow in DEALLOC_PENDING and DEALLOCATED state.
Cleanup of failed flow allocation is now properly handled instead of
relying on the sanitizer thread. The new sanitizer only needs to
monitor crashed processes.
On shutdown, the IRMd will now detect hanging processes and SIGKILL
them and clean up their fuse mountpoints if needed.
A lot of other things have been cleaned up and shuffled around a bit.
Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks>
Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
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Slow but steady.
Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks>
Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
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The information for an IPCP is now stored in an ipcp_info struct,
containing name and type. The IRM public API is not changed.
Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks>
Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
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Rename internal data structures so it's clear that they are the IRMd
representation of these objects for management purposes.
Split functionality for these objects off and and move them to their
own source files.
Rename internal functions of the IRMd to reflect this, with some small
refactoring.
Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks>
Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
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This adds initial support for configuration files using the C99 TOML
parser (to be installed separately from https://github.com/cktan/tomlc99).
The default location for the IRMd configuration file is
/etc/ouroboros/irmd.conf. This is configurable at build time.
An example file will be installed in the configuration directory with
the name irmd.conf.example.
Config file support can be disabled using the DISABLE_CONFIGFILE build
option.
There were some refactors and changes to the configuration messages
and protobuf files. This works towards consolidation of protobuf C as
an option for more generic handling of serialization/deserialization
of various messages.
Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks>
Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
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