Eric Blake 894e02804c nbd/server: Add helper functions for parsing option payload ... Rather than making every callsite perform length sanity checks and error reporting, add the helper functions nbd_opt_read() and nbd_opt_drop() that use the length stored in the client struct; also add an assertion that optlen is 0 before any option (ie. any previous option was fully handled), complementing the assertion added in an earlier patch that optlen is 0 after all negotiation completes. Note that the call in nbd_negotiate_handle_export_name() does not use the new helper (in part because the server cannot reply to NBD_OPT_EXPORT_NAME - it either succeeds or the connection drops). Based on patches by Vladimir Sementsov-Ogievskiy. Signed-off-by: Eric Blake <eblake@redhat.com> Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Message-Id: <20180110230825.18321-6-eblake@redhat.com>		2018-01-17 20:14:12 -06:00
..
Makefile.objs	nbd: Split nbd.c	2016-01-15 18:58:02 +01:00
client.c	nbd: rename nbd_option and nbd_opt_reply	2018-01-10 12:11:23 -06:00
common.c	nbd: Expose constants and structs for structured read	2017-10-30 21:07:21 +01:00
nbd-internal.h	nbd: Minimal structured read for client	2017-10-30 21:48:41 +01:00
server.c	nbd/server: Add helper functions for parsing option payload	2018-01-17 20:14:12 -06:00
trace-events	nbd/server: Implement sparse reads atop structured reply	2018-01-08 09:12:23 -06:00