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* [SERVER] iscsi: Reply OK to any task management functionSimon Rettberg2025-12-092-1/+235
| | | | | | | Since we process everything sequentially, by the time we receive any task management function, the task referenced in the request has already been rejected (or processed), so we just reply OK for now, so the SNs don't get messed up.
* [SERVER] iscsi: Remove unused functions & casts, turn [0] into []Simon Rettberg2025-12-092-306/+104Star
| | | | | | | In functions that can handle multiple different structs, instead of picking an arbitrary one as the pointer type in the function signature, pass an uint8_t and cast to the according struct in the sub-cases in the method body.
* [SERVER] iscsi: Rename constant to reflect it means LOGICAL block sizeSimon Rettberg2025-12-092-21/+22
| | | | ... The other one is already named PHYSICAL
* [SERVER] iscsi: Unify usage of length and position variablesSimon Rettberg2025-12-092-461/+213Star
| | | | | | | | | | | | There were a lot of similarly named and redundant variables in various structs named pos, len, xfer_len, des_xfer_pos, etc. It could be very challenging to keep track of what information is stored where when working with the code. Attempt to minimize this by relying only on a single "len" variable in the scsi_task struct. This refactoring uncovered a few inconsistencies in how allocation length limitations were handled, which were addressed here too.
* [SERVER] iscsi: Refactor receive function and PDU handlingSimon Rettberg2025-12-093-1055/+616Star
| | | | | | | | | | | | - Fold header/data handling into one function This uncovered a few redundant checks and makes it easier to reason about control flow - Make all iscsi_pdu stack-allocated This greatly reduces the number of malloc and free calls during normal operation, lowers the risk of memory management bugs, and potentially increases performance in high concurrency scenarios.
* [SERVER] iscsi: Honor global _shutdownSimon Rettberg2025-12-092-6/+1Star
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* [SERVER] iscsi: Restore proper padding of DataSegmentSimon Rettberg2025-12-091-0/+7
| | | | | | | | This broke when sending ds payload was refactored to avoid copying the buffer into the PDU's buffer before sending. iscsi_connection_pdu_create took care of this before, but now that we send the source buffer directly, pad the packet manually after sending the buffer contents if required.
* [SERVER] iscsi: Cleanup commented-out codeSimon Rettberg2025-12-091-5/+0Star
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* [SERVER] iscsi: Change LUN to 0Simon Rettberg2025-12-091-1/+1
| | | | Makes using the kernel's iscsi module simpler
* Fix AFL buildSimon Rettberg2025-12-098-36/+21Star
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* [SERVER] Refactor classic dnbd3 code a bit, locking etc.Simon Rettberg2025-12-091-28/+54
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* [SERVER] iscsi: Fix crashesSimon Rettberg2025-12-093-37/+41
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* [SERVER] Check if iSCSI server is enabled, check opcodeSimon Rettberg2025-12-093-12/+16
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* [SERVER] iscsi: use sendfile()Simon Rettberg2025-12-095-151/+117Star
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* [SERVER] iscsi refactor: First working versionSimon Rettberg2025-12-099-18065/+2732Star
| | | | | | | | | Work towards simplifying the iscsi implementation has begun. Goals are: - Simpler and easier to understand resource/lifecycle management of allocations - Single-threaded architecture, making locking unnecessary - Moving as many allocations as possible to the stack - Making the call-stack more shallow for easier tracking of code flow
* [SERVER] iscsi: Implement relaying requests to uplink serversSimon Rettberg2025-12-092-26/+97
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* [SERVER] iscsi: Hook into net.c, text response handling, more features:Sebastian Vater2025-12-098-2256/+15641
| | | | | | | | | | | | | | | - R2T handling - Portal groups - Fixes to login phase handling - Code refactoring - Remove obsolete PDU fields - SCSI INQUIRY handler - Persistent Reservation support - Implement SCSI block based operations - Implement other needed SCSI ops - Disks are now reported as read-only - Doxygen tags - Bugfixes for crashes, memleaks, etc.
* [SERVER] iscsi: Finish login handling, add NOP-In/Out handlingSebastian Vater2025-12-092-261/+1448
| | | | Also a couple bug fixes and other minor improvements
* [SERVER] iscsi: Implement receive loop, add a lot of new iSCSI structuresSebastian Vater2025-12-092-120/+3956
| | | | | - globals, portal groups, portals, ports, etc. - Finally, fixed some bugs.
* [SERVER] iscsi: Add a lot of Doxygen comments, some general additionsSebastian Vater2025-12-092-2672/+5479
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* doxygen: Add initial config and gitlab runner jobSimon Rettberg2025-12-092-2/+199
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* [SERVER] iscsi: Initial commit, WIPSebastian Vater2025-12-093-0/+4589
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* [KERNEL] Add CentOS 9.6 supportSimon Rettberg2025-06-251-3/+6
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* [KERNEL] Fix linter complaintsSimon Rettberg2025-04-152-10/+21
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* [KERNEL] Check if reply size matches requestSimon Rettberg2025-04-151-13/+32
| | | | | | | | | Output according messages and abort connection if the reply didn't contain exactly as many bytes as requested, instead of going on and running into desync with the reply stream from the server, which would just give us confusing messages about header magic mismatch.
* [KERNEL] Correct and improve connect timing debug messagesSimon Rettberg2024-12-191-6/+6
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* [KERNEL] Fix compile for 6.11+Simon Rettberg2024-12-112-16/+33
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* [SERVER] Verify checksums of all images on SIGUSR1Simon Rettberg2024-07-056-14/+92
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* [SERVER] integrity: Add comments, line wraps, add check for full scanSimon Rettberg2024-07-041-7/+24
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* [server] Avoid redefining container_ofSimon Rettberg2024-06-071-0/+2
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* [FUSE] curl: Handle read callbacks with < 4k buffer sizeSimon Rettberg2024-05-231-2/+12
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* [FUSE] cow: Fix lowercasing of header fieldSimon Rettberg2024-05-221-1/+1
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* [KERNEL] Use next pending request for discovery in panic modeSimon Rettberg2024-05-171-13/+33
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* [KERNEL] Add more debug logging, tweak connect timeoutSimon Rettberg2024-05-171-8/+16
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* [FUSE] cow: stats.txt -> statsSimon Rettberg2024-05-152-14/+17
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* [FUSE] Buffer upload reply contents and conditionally printSimon Rettberg2024-05-152-3/+9
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* [FUSE] I'M AN IDIOTSimon Rettberg2024-05-131-1/+1
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* [FUSE] Fix hang when trying to chmod/chown /img or /statusSimon Rettberg2024-05-131-1/+3
| | | | No reply was ever given for unhandled requests. Return EACCES.
* [FUSE] Don't exit on SIGQUIT, just stop uploadingSimon Rettberg2024-05-133-10/+1Star
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* [FUSE] Fix printf lengthSimon Rettberg2024-05-131-2/+2
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* [FUSE] CleanupSimon Rettberg2024-05-131-7/+6Star
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* [FUSE] Reset cluster fail counter on successful uploadSimon Rettberg2024-05-131-0/+1
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* [FUSE] Fix race conditionSimon Rettberg2024-05-131-1/+5
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* [FUSE] Fix uninitialized speed bufferSimon Rettberg2024-05-131-1/+1
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* [FUSE] Fix check for failed statsfile writeSimon Rettberg2024-05-131-1/+1
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* [FUSE] Fix division by zeroSimon Rettberg2024-05-131-1/+1
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* [FUSE] Fix use-after-free of curl_slist; unify init codeSimon Rettberg2024-05-131-31/+38
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* [FUSE] Move curl reset to start of functionSimon Rettberg2024-05-131-2/+1Star
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* [FUSE] Rename version -> revision in /createSimon Rettberg2024-05-132-54/+59
| | | | Also turn into normal POST with urlencoded payload.
* [FUSE] Use CURLOPT_HEADERFUNCTION instead of curl_easy_headerSimon Rettberg2024-05-132-23/+49
| | | | | curl_easy_header was introduced in 7.83, so not even available in Ubuntu 22.04. Switch to manual header parsing.
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