mirror of
https://github.com/trapexit/mergerfs.git
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87 lines
2.1 KiB
C++
87 lines
2.1 KiB
C++
/*
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Copyright (c) 2016, Antonio SJ Musumeci <trapexit@spawn.link>
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Permission to use, copy, modify, and/or distribute this software for any
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purpose with or without fee is hereby granted, provided that the above
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copyright notice and this permission notice appear in all copies.
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THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include "config.hpp"
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#include "ugid.hpp"
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#include <fuse.h>
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namespace l
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{
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static
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void
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want(fuse_conn_info *conn_,
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const int flag_)
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{
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conn_->want |= flag_;
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}
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static
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bool
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capable(fuse_conn_info *conn_,
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const int flag_)
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{
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return !!(conn_->capable & flag_);
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}
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static
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void
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want_if_capable(fuse_conn_info *conn_,
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const int flag_)
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{
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if(capable(conn_,flag_))
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want(conn_,flag_);
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}
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static
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void
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want_if_capable(fuse_conn_info *conn_,
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const int flag_,
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bool *want_)
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{
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if(*want_ && l::capable(conn_,flag_))
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{
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l::want(conn_,flag_);
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return;
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}
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*want_ = false;
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}
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}
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namespace FUSE
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{
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void *
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init(fuse_conn_info *conn_)
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{
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Config &c = Config::get_writable();
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ugid::init();
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l::want_if_capable(conn_,FUSE_CAP_ASYNC_DIO);
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l::want_if_capable(conn_,FUSE_CAP_ASYNC_READ,&c.async_read);
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l::want_if_capable(conn_,FUSE_CAP_ATOMIC_O_TRUNC);
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l::want_if_capable(conn_,FUSE_CAP_BIG_WRITES);
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l::want_if_capable(conn_,FUSE_CAP_CACHE_SYMLINKS,&c.cache_symlinks);
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l::want_if_capable(conn_,FUSE_CAP_DONT_MASK);
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l::want_if_capable(conn_,FUSE_CAP_IOCTL_DIR);
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l::want_if_capable(conn_,FUSE_CAP_PARALLEL_DIROPS);
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l::want_if_capable(conn_,FUSE_CAP_POSIX_ACL,&c.posix_acl);
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return &c;
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}
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}
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