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* [SERVER] Add function to parse x-www-form-urlencoded stringsSimon Rettberg2017-10-284-26/+126
| | | | | | Use it to properly parse RPC queries. Will also come in handy when parsing POST body for calls that actually trigger any actions in the server (reload, alt-servers, ...)
* [SERVER] Use picohttpparser from h2oSimon Rettberg2017-10-264-48/+884
| | | | | | | Simple and lean interface, no bloat, noice. Slighly modified to use a simple string struct for passing around strings that are not null terminated, instead of separate char* and length.
* [SERVER] net: Simplify check for HTTPSimon Rettberg2017-10-261-10/+11
| | | | | Pretty loose guesswork, but preventing the false positives would not lead to any meaningful result anyways, so why bother.
* [SERVER] Rename missing occurence of ret, possibly leading to infinite loop :(Simon Rettberg2017-10-261-1/+1
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* [SERVER] uplink: Fix updating of global byte counter, fix incremental updatesSimon Rettberg2017-10-251-2/+7
| | | | | Incremental updating of the global byte counter would only work when background replication is disabled. Fix this.
* [SERVER] Only start reloading images if no other reload is in progressSimon Rettberg2017-10-251-4/+12
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* [SERVER] Improve handling of byte stats countersSimon Rettberg2017-10-253-19/+29
| | | | Less writes to variables, more up-to-date values for uplinks.
* [SERVER] Improve altserver handling and selectionSimon Rettberg2017-10-251-26/+41
| | | | | | We order the list so that servers that fail are kept at the end of the list. This is so that when we fetch servers for RTT measurement, we're less likely to pick those.
* [FUSE] Cache signalfd instances used in fuse read handlerSimon Rettberg2017-10-241-2/+43
| | | | | | Previously, a fresh one was created and destroyed fo every read requests. This caused a lot of syscalls when reading. Now there's a simple cache of currently up to 6 signalfd.
* [FUSE] Spacing; Don't check if server proto is newer than clientSimon Rettberg2017-10-241-3/+3
| | | | | | | The server is always backwards compatible, and so should be the client. If support for an older version will not be kept up, MIN_SUPPORTED_{CLIENT,SERVER} will be increased accordingly so that the connection is dropped.
* [FUSE] Fix type mismatch warningsSimon Rettberg2017-10-243-18/+37
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* [SERVER] Initialize PRNGSimon Rettberg2017-10-242-0/+2
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* [SERVER] Get rid of zlib dependencySimon Rettberg2017-10-244-19/+649
| | | | | | We only used it for CRC-32, so now the source tree includes a stripped down version of the crc32 code from the zlib project.
* [SERVER] Fix types or add explicit casts everywhere we might have type ↵Simon Rettberg2017-10-2416-110/+120
| | | | conversion problems
* [SERVER] Properly support passing negative values to timing_gets()Simon Rettberg2017-10-201-1/+1
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* [SERVER] Mute signedness warning on 32bitSimon Rettberg2017-10-201-2/+2
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* [SERVER] Use monotonic clock for measuring timeSimon Rettberg2017-10-1910-74/+264
| | | | | Introduces new shared source unit timing.[ch] Closes #3214
* [SERVER] More tweaks to alt-server selection wrt proxy cyclesSimon Rettberg2017-10-181-4/+9
| | | | | This needs an overhaul; status needs to be moved from global alt-servers list to individual uplinks
* [SERVER] Don't try to load metadata files as images; fix clang-analyzer ↵Simon Rettberg2017-10-182-15/+36
| | | | false positives
* [SERVER] Try to connect to different server if proxy cycle is detectedSimon Rettberg2017-10-174-9/+34
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* [*] Support hop-counting in request header, protocol version 3Simon Rettberg2017-10-1710-45/+101
| | | | | | | | | | | | | | We steal 8 bits from the request offset to count hops when requests get relayed by proxies. This still leaves plenty of bits for the offset (56 bits, supporting images of up to 72 petabytes). This is used to detect proxy cycles. The algorithm is not perfect but should prevent endless relays of the same request. This is backwards compatible to old clients and servers, as the server only ever sets the hopcount in relayed requests if the upstream server is using protocol version 3 or newer, and clients are automatically upwards compatible as there is practically no image larger than 74PB, so the newly introduced hop count field is always 0 even in requests from old clients.
* [SERVER] rpc: Support querying storage size + available spaceSimon Rettberg2017-10-114-9/+27
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* [KERNEL] version check to support pointer to backing_dev_info in request_queueSimon Rettberg2017-10-091-0/+6
| | | | | This changed in 4.11, see https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=dc3b17cc8bf21307c7e076e7c778d5db756f7871
* [SERVER] Fix invalid pointer derefSimon Rettberg2017-10-061-1/+1
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* [SERVER] rpc: Return a unique id generated at startup with each replySimon Rettberg2017-10-061-4/+19
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* [SERVER] Return client count when requesting stats but not client listSimon Rettberg2017-10-062-4/+14
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* [SERVER] rpc: Fix bitmask calc for odd subnet sizes (not 8, 16, ...)Simon Rettberg2017-10-041-1/+1
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* [SERVER] How about updating atime on connect?Simon Rettberg2017-10-041-0/+3
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* [SERVER] Implement HTTP RPC that supports different queries and ACLSimon Rettberg2017-10-015-45/+264
| | | | | | | | | - ACL is defined in new file rpc.acl - Queries are still WIP, for now something like /query?q=stats&q=images /query?q=clients works, although the parsing is still ugly - Also supports HTTP keep-alive
* [SERVER] Move includes from header to source unitSimon Rettberg2017-10-012-2/+2
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* [SERVER] Helper function for loading line based space separated data from fileSimon Rettberg2017-10-013-34/+63
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* [*] constness for sock_sendAll paramsSimon Rettberg2017-10-012-3/+3
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* [SERVER] Fix closing timeout reset, fix log messagesSimon Rettberg2017-09-082-1/+5
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* [SERVER] Refactor: Move client list to net.* and isolateSimon Rettberg2017-09-078-247/+290
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* [SERVER] Implement closeUnusedFd config optionSimon Rettberg2017-09-024-0/+36
| | | | | | | This will close the readFd of images that have no active clients after some idle period (1 hour currently). Prevents deleted images from taking up space until the server is shut down.
* [*] Continue splitting #defines to clientconfig.h etc.Simon Rettberg2017-09-0210-35/+51
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* [SERVER] Split server-only defs from config.h to serverconfig.hSimon Rettberg2017-08-268-32/+54
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* [SERVER] Change handling of nonworking images, check for size changeSimon Rettberg2017-08-241-77/+169
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* [SERVER] Fix status query on big endianSimon Rettberg2017-08-211-4/+7
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* [SERVER] Make crclist handling endian-safeSimon Rettberg2017-04-272-1/+9
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* [SERVER] Remove stray lineSimon Rettberg2017-04-271-1/+0Star
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* [SERVER] Fix image_load aswell...Simon Rettberg2016-11-091-12/+12
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* [SERVER] Fix loading of rid-based images in vmdk legacy modeSimon Rettberg2016-11-091-9/+8Star
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* [FUSE] Little more verbosity in some error msgSimon Rettberg2016-11-091-1/+1
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* [KERNEL] PAGE_CACHE_SIZE -> PAGE_SIZESimon Rettberg2016-10-171-1/+1
| | | | | | | These two have been the same all along and recently, the _CACHE variant has been removed (kernel 4.6). Switch to the non-CACHE version so build doesn't break on newer kernels.
* SERVER_MAX_CLIENTS: 400 -> 4000konrad2016-07-191-1/+1
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* Added rudimentary benchmark tool.Christian Klinger2016-07-156-0/+392
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* [SERVER] Bump debug lock tracking limitsSimon Rettberg2016-07-131-2/+2
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* [CLIENT] fix help output for closing a deviceJonathan Bauer2016-06-131-1/+1
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* [FUSE] Wait a little longer before switching via new approachSimon Rettberg2016-03-231-8/+8
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