dnbd3.git/src/shared/protocol.h, branch isfantDistributed Network Block Device 3 --rewrite for Kernel 3.xhttps://git.openslx.org/dnbd3.git/atom/src/shared/protocol.h?h=isfant2020-10-16T15:15:49+00:00[BUILD] rewrite CMake build system to track changes of source files2020-10-16T15:15:49+00:00Manuel Bentele2020-10-16T15:15:49+00:00urn:sha1:969496f15e1e0359e26c2c6e995ad4ef82720f86
This change restructures the source code directories, separates shared
form non-shared application code and adds CMake dependencies. These
dependencies allow the tracking of changes and trigger a rebuild of
those build targets where changed files are involved.
WARNING: Note that the support of the DNBD3_SERVER_AFL build option is
not supported yet. Thus, the option should be never turned on.
[SHARED] Fix 16 byte information leakage in select image message2020-06-30T09:21:31+00:00Simon Rettberg2020-06-30T09:21:31+00:00urn:sha1:dcece877215a0d909553ae9301a02d031b37b715[SERVER] Fix compiler warnings2019-09-02T11:26:47+00:00Simon Rettberg2019-09-02T11:26:47+00:00urn:sha1:0edf0a0888b1e40769e19eee031c2cefdcf37d26[SERVER] Add pretendClient config option2019-07-23T15:24:27+00:00Simon Rettberg2019-07-23T15:21:29+00:00urn:sha1:a61b4f18a1f9dcb78dba4bcde48a9318b04a45ec
This makes the server not set the FLAGS8_SERVER flag
when establishing an uplink connection. Useful mostly
for running a proxy on localhost for local caching.
[SERVER] Only set BGR flag in handshake for BGR_FULL2018-11-16T09:42:22+00:00Simon Rettberg2018-11-16T09:42:22+00:00urn:sha1:a28448bce13f0d3c71e0b11e3d7c33663d1a2ee9
_backgroundReplication was still treated as a boolean flag, so a server
with BGR_NONE would reject a server with BGR_HASHBLOCK. While this still
forces the BGR_NONE proxy to replicate more than it normally would, it
seems reasonable to allow this.
[SHARED] Reset errno2018-04-05T16:31:22+00:00Simon Rettberg2018-04-05T16:31:22+00:00urn:sha1:de824f77fcf7a9164d0e52cf9979c285174426db[SERVER] Support finer control over replication when a proxy connects to a proxy2017-11-02T12:41:35+00:00Simon Rettberg2017-11-02T12:41:35+00:00urn:sha1:1587f73c38c9228a1a93889aae6351eff891cbe8
Introduce new flag in "select image" message to tell the uplink server
whether we have background replication enabled or not. Also reject
a connecting proxy if the connecting proxy uses BGR but we don't, as this
would basically force the image to be replicated locally too.
[SERVER] Fix types or add explicit casts everywhere we might have type conversion problems2017-10-24T09:27:44+00:00Simon Rettberg2017-10-24T09:27:44+00:00urn:sha1:a0fbfe1c6d6f42b4c2704c882beda1c4cafe5016[*] Support hop-counting in request header, protocol version 32017-10-17T10:08:55+00:00Simon Rettberg2017-10-17T10:08:55+00:00urn:sha1:102705470366b871109d2c3bf182c151ab71eb01
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] Fix formatting2016-03-22T14:58:13+00:00Simon Rettberg2016-03-22T14:58:13+00:00urn:sha1:549a53070ae03b47e11943727afe4f8927cb6c42