ouroboros/src/ipcpd/ipcp.c, branch 0.21.2

lib: Revise app flow allocation

2024-02-23T15:41:37Z

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 Signed-off-by: Sander Vrijders

irmd: Revise IRMd internals

2024-02-19T10:49:07Z

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 . 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 Signed-off-by: Sander Vrijders

ipcpd: Fix memleak in rib_readdir

2024-01-31T09:27:57Z

On fail_dup, the last element (0) was not free'd. Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders

build: Update licenses to 2024

2024-01-13T09:20:14Z

Slow but steady. Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders

lib: Fix reading FUSE output on Raspbian

2023-11-26T14:51:36Z

The previous patch only fixed listing the contents on the fuse filesystem. Apparently files with st_blocks = 0 as seen as empty on Raspbian, and the FUSE read() function isn't invoked for such files. Setting st_blocks to 1 fixes that, but st_blksize is ignored for fuse. So, on raspbian the filesize is now a huge number, but at least reading the fuse filesystem works. Corrected the filesystem attributes for the IPCP output for systems that don't rely on st_blocks to assess filesize. Also set the file mode to 0644 as these are not executables. Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders

lib: Fix FUSE output on Raspbian

2023-11-20T12:19:48Z

For some reason, 'ls' on raspbian invoked the fuse readdir() in a loop where the first call had fuse_file_info * info set to NULL and subsequent calls had info->nonseekable set to 1. Since we don't check the value the info struct, this caused an infinite loop when trying to list the contents of the fuse filesystem subdirectories of /tmp/ouroboros/. Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders

ipcpd: Revise logging

2023-08-30T15:12:41Z

This revises the logging in the IPCPs to be a more consistent and reduce duplicate messages in nested functions. Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders

ipcpd: Move alloc race mitigation to common source

2023-08-30T08:33:20Z

All flow allocator code was duplicating the mitigation for a race where the IRMd response for the flow allocation with a new flow fd was arriving before the response to the flow_req_arr. This is now moved to the ipcp common source. Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders

ipcpd: Set IPCP states in common sources

2023-08-30T08:33:19Z

The state of the IPCP was set and checked in the main files, but it's more convenient to do it in the common source. Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders

icpdp: Fix layer information for ipcpd-udp

2023-03-24T09:04:53Z

The refactors removed the need to set the hash algorithm for the ipcpd-udp and the ipcpd-broadcast. However, the algorithm was not set at bootstrap, so the ipcpd-udp was trying to use an SHA3-256 instead of an MD5, causing flow allocation over the UDP to fail. The ipcpd-broadcast used the default, so there was no problem. Fixed by setting the correct algorithm for these ipcpds at bootstrap. Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders