ouroboros/src/lib, branch 0.20.3

lib: Fix reading FUSE output on Raspbian

2023-11-26T14:51:36+00:00

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: Add newlines to stderr output at init

2023-11-26T14:51:36+00:00

The stderr lines had no newline. Fixed. Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders

lib: Fix FUSE output on Raspbian

2023-11-20T12:19:48+00:00

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

lib: Fix timeout overflow on 32-bit systems

2023-11-08T08:17:53+00:00

The timeout comparison for keepalives could overflow on 32-bit systems, as times were converted to nanoseconds and be limited to a bit over 4 seconds. This caused flow reads to fail miserably with EFLOWPEER errors when keepalives were set higher on these systems. Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders

lib: Remove pid from flow struct

2023-10-25T09:41:59+00:00

The pid of the N-1 IPCP process was needlessly stored in the flow struct. We only need it to open the right shared memory maps, which is done when the flow is created. Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders

lib: Wrap pthread_cond_timedwait for NULL abstime

2023-10-25T07:53:27+00:00

We often have the pattern where we NULL-check abstime for pthread_cond_timedwait to call pthread_cond_wait if it is. Added a __timedwait function to wrap this. Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders

lib: Make crypt.c independent source file

2023-10-25T07:51:35+00:00

The cryptography functions were in a C source that was directly imported into dev.c, enabling ECDHE+AES256 symmetric key encryption on flows. Now crypt.c is an independent source file with associated crypt.h header, to prepare for security management and configuration in the IRMd. Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders

lib: Revise port construct in application

2023-09-20T16:51:19+00:00

The application had a port construct, which is a leftover from the early days implementing RINA specs, which had a "port_id" to access flows. O7s doesn't really have a "port" concept, only flows. The port_wait_assign function was used in the IPCP to wait for the IRMd to assign the flow_id and return so the flow object could be created. This renames things a bit, and also simplifies the locking to us a single lock/condvar for managing flows. This should be further improved to move the flow state into the flow object, maintain a double mapping of to flow objects (id_to_flow and fd_to_flow) and malloc flow objects at flow allocation, instead of keeping the full table in memory at init to further reduce memory footprint. Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders

lib: Revise application init and fini

2023-09-20T16:51:19+00:00

The init will now print more useful errors if a process fails to initialize. Also rearranged these procedures a little bit. Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders

lib: Rename portevent to flowevent

2023-09-20T16:51:19+00:00

Doesn't make any sense to call it a port event... Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders