ouroboros/src/ipcpd, branch 0.16.0

build: Update copyright to 2020

2020-01-02T14:07:36+00:00

Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders

ipcpd: Remove duplicate ip address in udp data

2019-08-31T10:17:33+00:00

The ip address was stored twice, which is not needed. Only keeping the ip address in the sockaddr struct will make IPv6 support more homogeneous. Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders

ipcpd: Fix length mismatch of encryption cypher

2019-08-09T17:43:07+00:00

The cypher_s field in QoS was sometimes 32 and sometimes 16 bits. This is now corrected to be 16 bits. Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders

lib: Add per-message encryption with OpenSSL

2019-08-03T10:10:57+00:00

This adds a per-message symmetric encryption using the OpenSSL library. At flow allocation, an Elliptic Curve Diffie-Hellman exchange is performed to derive a shared secret, which is then hashed using SHA3-256 to be used as a key for symmetric AES-256 encryption. Each message on an encrypted flow adds a small crypto header that includes a random 128-bit Initialization Vector (IV). If the server does not have OpenSSL enabled, the flow allocation will fail with an -ECRYPT error. Future optimizations are to piggyback the public keys on the flow allocation message, and to enable per-flow encryption that maintains the context of the encryption over multiple packets and doesn't require sending IVs. Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders

build: Refactor normal to unicast

2019-07-29T17:36:45+00:00

This completes the renaming of the normal IPCP to the unicast IPCP in the sources, to get everything consistent with the documentation. Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders

ipcpd: Fix use after free and uninitalized value

2019-06-21T17:46:40+00:00

This fixes a use after free in an error condition, and makes sure that pid is set in the flow_set early on, so flow_set_destroy won't create a prefix with an uninitialized pid in case of an error in shm_flow_set_create. Signed-off-by: Sander Vrijders Signed-off-by: Dimitri Staessens

ipcpd: Give max priority to flow allocator

2019-03-28T13:54:03+00:00

The flow allocator thread was running on a low priority, causing some delay when handling packets. Usually this isn't a problem, but for congestion control updates, the delay may become problematic. The priority is now set to the maximum allowed by the scheduler policy to improve responsiveness. Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders

ipcpd: Handle local IPCP case when parsing config

2019-03-28T13:52:59+00:00

The default case in the configuration parsing prints an erroneous "Unknown IPCP type" message when a local IPCP is bootstrapped. The IPCP_LOCAL type is now handled separately (no action needed). Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders

build: Set specific compiler flags for SWIG target

2019-03-21T11:33:54+00:00

The compiler flags for the SWIG target were added to the global CMAKE_C_FLAGS used for the entire project. This sets the flags uniquely for the SWIG target. The eth has a similar case for the c99 flag. There was a lingering include in dev.c that was removed. Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders

ipcpd: Don't reuse fqueue between threads

2019-03-21T08:45:54+00:00

The UDP IPCP was reusing fqueues between threads. This is not supported and lead to bad reads and buffer overflows. Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders